TW201117497A - Direct current outlet - Google Patents

Direct current outlet Download PDF

Info

Publication number
TW201117497A
TW201117497A TW99126246A TW99126246A TW201117497A TW 201117497 A TW201117497 A TW 201117497A TW 99126246 A TW99126246 A TW 99126246A TW 99126246 A TW99126246 A TW 99126246A TW 201117497 A TW201117497 A TW 201117497A
Authority
TW
Taiwan
Prior art keywords
plug
socket
pin
insertion groove
receiving portion
Prior art date
Application number
TW99126246A
Other languages
Chinese (zh)
Other versions
TWI424636B (en
Inventor
Kazuhiro Kato
Toshiyuki Takii
Takashi Kawamoto
Maki Kondou
Satoru Ueno
Original Assignee
Panasonic Elec Works Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2009185057A external-priority patent/JP5308271B2/en
Priority claimed from JP2009185280A external-priority patent/JP5319448B2/en
Priority claimed from JP2009185060A external-priority patent/JP5336975B2/en
Priority claimed from JP2009185059A external-priority patent/JP5308272B2/en
Priority claimed from JP2009219725A external-priority patent/JP5319470B2/en
Priority claimed from JP2009219727A external-priority patent/JP5319472B2/en
Priority claimed from JP2009219726A external-priority patent/JP5319471B2/en
Priority claimed from JP2009266751A external-priority patent/JP5361678B2/en
Application filed by Panasonic Elec Works Co Ltd filed Critical Panasonic Elec Works Co Ltd
Publication of TW201117497A publication Critical patent/TW201117497A/en
Application granted granted Critical
Publication of TWI424636B publication Critical patent/TWI424636B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

A direct current (DC) outlet supplies a DC power to the plug connected thereto. The DC outlet includes an outlet main body having an outlet unit to which the plug is adapted to be connected, the outlet unit being provided in a front surface of the outlet main body. Further, the outlet unit includes an insertion groove formed into a generally rectangular shape viewed from the front and to which the surrounding wall inserted; and a generally rectangular shaped plug-receiving portion surrounded by the insertion groove. The plug-receiving portion includes a plurality of circular pin insertion holes arranged along a reference side and the outlet main body receives pin-receiving pieces connected to the plug pins; terminals electrically connected to the pin-receiving pieces; and lock springs adapted to press electric wires for supplying DC power against the terminals.

Description

201117497 六、發明說明： 【發明所屬之技術領域】 本發明疋關於一種直流電插座，其包含具備插座單元 之插座體，經由所述插座單元將直流電力(power)供應給插 頭。 【先前技術】 S 知上 ’ k供一種交流電（alternating current，AC) 插座’用於經由可移除式而耦接至所述交流電插座之插頭 以將電驅動電力（交流電力）供應給電裝置（諸如，個人 電腦及電話）（例如，參見jp5_2〇7626A)。在此交流電插 座中，未對兩個插頭插腳（plug pin)***至交流電插座之 兩個插腳***孔中的方向施加限制。因此，插頭可易於插 入至交流電插座中。 同時’大多數電裝置利用直流（direct current，DC ) 電力作為其驅動電力。為此，AC-DC轉換器將自交流電插 座供應之交流電力轉換成DC電力且接著將其饋入至電裝 置。在AC-DC轉換器將交流電力轉換成DC電力時，會出 現電力損失。 在努力防止此電力損失之過程中，已知一種用於將 DC電力供應至電裝置的DC插座（例如，參見 JP7-15835A)。DC插座之使用使得有可能省略原本設置於 DC插座與電裝置之間的AC-DC轉換器。在此項技術中已 知可用於此DC插座之兩種插頭，一種具有單一插頭插腳 (如JP7-15835A中所揭露），且另一種具有遵照IEC標準 201117497 之兩個插頭插腳。 在具有兩個插頭插腳之插頭中，插頭插腳分成正插腳 及負插腳。相應地，：DC插座具備***正插腳之正插腳插 入孔及***負插腳之負插腳***孔。就兩個插頭插腳及兩 個***孔之組態而言，有時情況為正插腳***至負插腳插 入孔中而負插腳***至正插腳***孔中（亦即，發生反向 ***）。顧及此情況，DC插座具備用於防止反向***之结 構。 、。 如與交流電插座相比，在DC插座中有可能出現以下 情況.若在電力輸送期間自DC插座移除插頭，則dc插 座與插頭之間持續產生電弧。為使自插頭外部看不見電 弧，插頭具備用於在外部遮蓋插頭插腳之包圍壁 (surrounding wall)。作為具有包圍壁及兩個插頭插腳之Dc 插座的實例，存在一種遵照IEC標準的可用的Dc插座。 參看圖48A及圖48B，將對遵照IEC標準之DC插座 及插頭進行描述。 如圖48A中繪示，插頭1〇〇包含用於與DC插座之插 座單元110電性連接的兩個正及負插頭插腳1⑴（參見圖 48B)及用於在外部遮蓋插頭插腳ι〇1的圓柱形包圍壁 102。向下突出之肋狀物1〇3沿垂直方向設置於包圍壁1〇2 之上端部分中。插頭插腳101在垂直方向上配置在與包圍 壁102之中心CR1相同的位置處且在水平方向上與中心 CR1間隔開。 如圖48B中所說明，插座單元11〇包含***有包圍壁 201117497 =2的插人凹槽⑴及由***凹槽⑴包圍之插頭接納部 刀112***凹槽經形成為環狀形狀（在如在插頭1〇〇 之***方向上所見之平面圖中）。肋狀物***凹槽ιΐ3 (其 中***有插頭100之肋狀物1〇3)沿垂直方向設置於*** 凹槽111之上端部分中。 在插頭接納部分112中，形成兩個插腳***孔114， 插頭1〇〇之插頭插腳101***於所述兩個插腳***孔114 中。插腳***孔114在垂直方向上配置在與***凹槽ιη 之中心CR2相同的位置且在水平方向上與中心CR2間隔 開。 藉由在以下狀態下將插頭100***至插座單元110而 使插頭100與插座單元11〇彼此連接：插頭插腳1〇1與插 腳***孔U4對準、包圍壁102與***凹槽ill對準，且 肋狀物103與肋狀物***凹槽I〗]對準。 為避免插頭100反向***至插座單元11〇中，插頭1〇〇 需要在插頭100之肋狀物103與插座單元110之肋狀物插 入凹槽113對準的情況下***至插座單元11〇。換言之， 在使用者用視覺確認設置於插頭1〇〇之包圍壁1〇2中的肋 狀物103之位置後，使用者必需將肋狀物103與肋狀物插 入凹槽113對準。因此，將插頭ι〇〇***至插座單元u〇 中之任務變得繁瑣且費力。 作為用於防止反向***之另一插座結構，能想到要使 用以下組態’其中，代替省略肋狀物103，在垂直方向上 偏離插頭接納部分之中心的位置中設置插腳***孔（如圖 201117497 49A中所示）。更具體言之，如® 49A中所示，插座單元 2⑻具備具有&狀形狀（在如在插頭之插人方向上所見的 平面圖中）的***凹槽2〇1。兩個插腳***孔2〇3設置於 由***凹槽201包圍之圓形插頭接納部分的中心CR3 之上側處。 ，而，插頭接納部分2〇2之水平寬度隨著其在垂直方 向上遠離中心CR3生長而變小。因此，用來接合兩個插腳 ***孔2G3之雜DR1變小。因此，插人至插腳***孔 203中之插頭的插頭插腳（未圖示）之間的距離減小。此 情形引起降傭_腳之介電 (dieleetriest咖gth)的 問題。 作為對此問題之解決方案，可想到要使用以下組態， 其中，如圖49B中所說明，藉由增加該***凹槽2〇1之外 徑DR2使插頭接納部分112之大小增加。此情形使得有可 能增加兩個插腳***孔203之間的距離DR5 (使得DR5 變成大於DR1)。 然而’插頭接納部分202之大小的增加導致插座單元 200之大小的增加。因此’插座單元11〇之外徑不可落在 多達三個模組中之一者的尺寸（下文稱作「單模組尺寸」） 内’所述三個模組在大小上遵照日本工業標準（參見jis c 8303 )且可並肩附接至大正方形轂型可互換佈線裝置 (large-square-boss-type interchangeable wiring device )之固 定框架（參見JIS C 8375 )。因此，必需使用專用於插座單 元200之固定框架。可附接至遵照日本工業標準之固定框 8 201117497 架的佈線裝置不可附接至此專關定框架。此情形引起佈 線裝置及插座單元不可-_接至f通固定框架的問題。 另外，DC插座可具有以下組態’其令，插腳***孔 呈矩形通孔而非圓形通孔之形式’插頭之扁平插腳（flat pin)(未圖示）可***於所述矩形通孔中。 更具體言之，如圖50A中所示，插座單元3〇〇具備具 有大體矩獅狀（在如在插歡插人方向摘見的平面^ 中）的***凹槽301。兩個插腳***孔3〇3設置於垂直方 向上由***凹槽301包圍之插頭接納部分3〇2之中心CR4 的上侧處（其中該中心⑽表示接合插頭接納部分搬之 四個角的兩條對角線的交點）。插腳***孔3〇3形成為長邊 在垂直方向上延伸的矩形形狀。 _在扁平插腳經形成以具有與插頭插腳之橫截面積相 同的橫截面積的情況下，扁平插腳之垂直尺寸變得大於插 頭插腳之垂直尺寸。因此，插赌人孔3()3經形成以在垂 直方向上長距離地延伸。更具體言之，插腳***孔3〇3之 下端部^向下延伸超過中心CR4。因此，若插頭反向*** 至插座單元300中，則扁平插腳部分進入插腳***孔3〇3 中且有可能與插座單元3GG之插腳接納件（未圖示）接觸。 鑒於此，可想到要使用以下組態，其中，如圖5〇B中 所繪示，藉由使***凹槽3〇1之外尺彳DR3及哪大於 圖50A中說明之插人凹槽3〇1的外尺寸來使插頭接納部分 302之大小增加。因此，插腳***孔3㈤之整個部分定位 於垂直方向上中心CR4之上側處，此使得有可能防止反向 201117497 而’引起插頭接納部分302之大小的增加導致插 座早7G 300之大小的增加的問題。 m ΐ有與遵照1ec標準之dc插座之包圍壁相同 二2壁的s知DC插料具有能夠允許使用者容易地執 订建構於DC插財之端子或插腳接納件與用於經由豆供 應DC電力之電線之間的連接的結構。 【發明内容】 繁於上述内容，本發明提供一種直流電（DC)插座， 其具備-種組態’所述組態用於防止反向插人且能夠避免 大小增加_准許電線與軒___之_ 接。 根據本發明之第-態樣，提供—種直流電（Dc)插座， 插頭經調適以連接至所述直流電插座以將Dc電力供應給 所述插頭’所述_包含具有圓桿形狀之多储頭插腳； 及用於包_述__之實質上四邊_狀之包圍壁。 所述DC插座包含具有插座單元之插座主體，插頭經調適 以連接至插鲜元，·難單元設置於插座主體之正面 中。 另外，所述插座單元包含：***凹槽，其形成為大體 矩形形狀（在如在插頭之***方向上所見之平面圖中）且 所述包圍壁插人其中；及插頭接納部分，其由所述***凹 槽包圍且軸為大體矩形雜（在如在插頭之***方向上 所見之平面圖中）。此外，所述插頭接納部分包含：多個圓 形插腳插人孔’其沿充當_接納部分之周邊側中的一側 201117497 之參考側來配置且插頭插腳***於其中，且插座主體接納 連接至***至插腳***孔中之插頭插腳的插腳接納件；端 子，其電性連接至所述插腳接納件；及鎖定彈簧，其經調 適以將用於供應DC電力之電線壓在所述端子上，所述電 線經由設置於插座主體上之電線***孔而***。 就上文陳述之本發明而言，***凹槽具有大體矩形形 狀。因此，與***凹槽具有環狀形狀之情況相比，有可能 T制插頭之包圍壁的***方向。此使得使用者能夠易於斷 定插頭***方向，藉此而增加使用之簡易性。 此外，插腳***孔設置於某位置中，所述位置距插頭 接納部分之沿插腳***孔之配置方向延伸的參考側較距插 頭接納部分之在垂直於參考側之垂直方向上與參考侧相對 的側更近。由於此特徵，有可能在無需在插座之***凹槽 或插頭之包圍壁中另外形成防反向***結構的情況下防止 插頭反向***至DC插座中。因此，與在DC插座中另外 形成防反向***結構之情況相比，變得有可能防止增加dc 插座之大小。 此外插座主體包含電線***孔，供應DC電力用之 電線***於所述電線***孔中。多個鎖定彈菁設置於插座 主體之内部空間内以將電線壓在端子上。由於此特徵，可 使=鎖定彈簧之彈性藉由端子及鎖定彈簧將電線夾住。此 使得有可能易於執行電線與端子之間的連接。 根據本翻之第二態樣，提供—種直流f(DC)插座， 插頭經調適以連接至所述直流電插座以將DC電力供應給 11 201117497 所述插頭，所述插頭包含具有圓桿雜之多個插頭插腳； 及用於包圍所職頭插腳之實質上四邊形形狀之包圍壁。 所述DC插座^含具杨座單元之插座主體，插頭經調適 以連接至插鮮元，所述插鮮元設置讀座主體之正面 中。另外，所賴座單元包含：插人凹槽，其經形成為大 體矩形形狀（在如在插頭之插人方向上所見之平面圖中） 且所述包圍壁插人其中；及插頭接納部分，其由所述*** 凹槽包圍且形成為大體矩形形狀（在如在插頭之***方向 上所見之平面圖中）。 此外’所述插祕納部分包含形插腳*** 孔’其沿充當插頭齡部分之周邊綱—狀參考側來配 置且插頭插腳***於其中’且插座主體接納連接至***至 插腳***孔中之插頭插腳的插腳接納件；端子，其電性連 接至所述插腳接納件；及螺桿(screw)部件，其安^於所述 端子處且在上緊時經調適以將用於供應Dc電力之電線壓 在所述端子上’所述電線經由設置於插座主體上之電線插 入孔而***。 就上文陳述之本發明而f，插人凹槽具有大體矩形形 狀。因此，與***凹槽具有環狀形狀之情況相比，有可能 限制插頭之包圍壁的插人方向。此使得使用者能夠易於斷 定插頭***方向’藉此而增加使用之簡易性4外，插腳 ***孔设置於某位置巾’所述位置距插頭接納部分之沿插 腳***孔之配置方向延伸的參考側較距插頭接納部分之在 垂直於參考側之垂直方向上與參考側相對的側更近。 12BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a DC power socket including a socket body having a socket unit through which DC power is supplied to a plug. [Prior Art] S knows that 'k is an alternating current (AC) socket' for plugging a plug that is removably coupled to the alternating current outlet to supply electric drive power (alternating current) to the electric device ( Such as personal computers and telephones (see, for example, jp5_2〇7626A). In this AC outlet, no restriction is imposed on the direction in which the two plug pins are inserted into the two pin insertion holes of the AC outlet. Therefore, the plug can be easily inserted into an AC outlet. At the same time, most electric devices use direct current (DC) power as their driving power. To this end, the AC-DC converter converts the AC power supplied from the AC outlet into DC power and then feeds it to the electrical device. When the AC-DC converter converts AC power into DC power, power loss occurs. In an effort to prevent this power loss, a DC socket for supplying DC power to an electric device is known (for example, see JP7-15835A). The use of a DC socket makes it possible to omit an AC-DC converter originally provided between the DC outlet and the electrical device. Two types of plugs for this DC socket are known in the art, one having a single plug pin (as disclosed in JP 7-15835A) and the other having two plug pins in accordance with IEC standard 201117497. In a plug having two plug pins, the plug pins are divided into a positive pin and a negative pin. Accordingly, the DC socket has a positive pin insertion hole into which the positive pin is inserted and a negative pin insertion hole into which the negative pin is inserted. For the configuration of the two plug pins and the two insertion holes, sometimes the positive pin is inserted into the negative pin insertion hole and the negative pin is inserted into the positive pin insertion hole (that is, reverse insertion occurs). In view of this, the DC outlet has a structure for preventing reverse insertion. ,. If compared to an AC outlet, the following may occur in a DC outlet. If the plug is removed from the DC outlet during power delivery, an arc is continuously generated between the dc socket and the plug. In order to prevent the arc from being visible from the outside of the plug, the plug has a surrounding wall for covering the plug pins externally. As an example of a DC socket having a surrounding wall and two plug pins, there is a Dc socket available in compliance with the IEC standard. Referring to Figures 48A and 48B, a DC socket and a plug complying with the IEC standard will be described. As shown in FIG. 48A, the plug 1A includes two positive and negative plug pins 1(1) (see FIG. 48B) for electrically connecting to the socket unit 110 of the DC socket and for covering the plug pin ι1 externally. The cylindrical surrounding wall 102. The downwardly projecting ribs 1〇3 are disposed in the vertical direction in the upper end portion of the surrounding wall 1〇2. The plug pin 101 is disposed in the vertical direction at the same position as the center CR1 of the surrounding wall 102 and is spaced apart from the center CR1 in the horizontal direction. As illustrated in Fig. 48B, the socket unit 11A includes an insertion groove (1) into which the surrounding wall 201117497 = 2 is inserted, and a plug receiving portion 112 surrounded by the insertion groove (1) is inserted into the groove to be formed into an annular shape (in the case In the plan view seen in the insertion direction of the plug 1〇〇). The rib insertion groove ι 3 (the rib 1 〇 3 in which the plug 100 is inserted) is disposed in the upper end portion of the insertion groove 111 in the vertical direction. In the plug receiving portion 112, two pin insertion holes 114 are formed, and the plug pins 101 of the plug 1 are inserted into the two pin insertion holes 114. The pin insertion hole 114 is disposed in the vertical direction at the same position as the center CR2 of the insertion groove ιη and is spaced apart from the center CR2 in the horizontal direction. The plug 100 and the socket unit 11 are connected to each other by inserting the plug 100 into the socket unit 110 in the following state: the plug pin 1〇1 is aligned with the pin insertion hole U4, and the surrounding wall 102 is aligned with the insertion groove ill, And the ribs 103 are aligned with the rib insertion grooves I]. In order to prevent the plug 100 from being reversely inserted into the socket unit 11A, the plug 1A needs to be inserted into the socket unit 11 with the rib 103 of the plug 100 aligned with the rib insertion groove 113 of the socket unit 110. . In other words, after the user visually confirms the position of the rib 103 provided in the surrounding wall 1〇2 of the plug 1〇〇, the user must align the rib 103 with the rib insertion groove 113. Therefore, the task of inserting the plug ι into the socket unit u〇 becomes cumbersome and laborious. As another socket structure for preventing reverse insertion, it is conceivable to use the following configuration 'wherein, instead of omitting the rib 103, a pin insertion hole is provided in a position deviating from the center of the plug receiving portion in the vertical direction (as shown in the figure) Shown in 201117497 49A). More specifically, as shown in the ® 49A, the socket unit 2 (8) is provided with an insertion groove 2〇1 having a & shape (in a plan view as seen in the insertion direction of the plug). Two pin insertion holes 2'' are provided at the upper side of the center CR3 of the circular plug receiving portion surrounded by the insertion groove 201. On the other hand, the horizontal width of the plug receiving portion 2〇2 becomes smaller as it grows in the vertical direction away from the center CR3. Therefore, the miscellaneous DR1 for engaging the two pin insertion holes 2G3 becomes small. Therefore, the distance between the plug pins (not shown) of the plug inserted into the pin insertion hole 203 is reduced. This situation caused a problem with the servant _ foot dielectric (dieleetriest coffee gth). As a solution to this problem, it is conceivable to use the configuration in which the size of the plug receiving portion 112 is increased by increasing the diameter DR2 of the insertion groove 2〇1 as illustrated in Fig. 49B. This situation makes it possible to increase the distance DR5 between the two pin insertion holes 203 (so that DR5 becomes larger than DR1). However, an increase in the size of the plug receiving portion 202 results in an increase in the size of the socket unit 200. Therefore, the outer diameter of the socket unit 11〇 cannot fall within the size of one of up to three modules (hereinafter referred to as "single module size"). The three modules are in accordance with Japanese industrial standards in size ( See jis c 8303) and can be attached side by side to a fixed frame of a large-square-boss-type interchangeable wiring device (see JIS C 8375). Therefore, it is necessary to use a fixed frame dedicated to the outlet unit 200. Wiring devices that can be attached to the fixed frame 8 201117497 according to Japanese Industrial Standards cannot be attached to this dedicated frame. This situation causes the problem that the wiring device and the socket unit cannot be connected to the f-pass fixing frame. In addition, the DC socket may have a configuration in which the pin insertion hole is in the form of a rectangular through hole instead of a circular through hole. A flat pin (not shown) of the plug may be inserted into the rectangular through hole. in. More specifically, as shown in Fig. 50A, the socket unit 3 is provided with an insertion groove 301 having a substantially lion-like shape (in a plane ^ as seen in the insertion direction). Two pin insertion holes 3〇3 are provided at the upper side of the center CR4 of the plug receiving portion 3〇2 surrounded by the insertion groove 301 in the vertical direction (wherein the center (10) represents two of the four corners of the engaging plug receiving portion The intersection of the diagonal lines). The pin insertion hole 3〇3 is formed in a rectangular shape in which the long side extends in the vertical direction. In the case where the flat pins are formed to have the same cross-sectional area as the cross-sectional area of the plug pins, the vertical size of the flat pins becomes larger than the vertical size of the plug pins. Therefore, the inserter hole 3 () 3 is formed to extend over a long distance in the vertical direction. More specifically, the lower end portion of the pin insertion hole 3〇3 extends downward beyond the center CR4. Therefore, if the plug is reversely inserted into the socket unit 300, the flat pin portion enters the pin insertion hole 3〇3 and is likely to come into contact with the pin receiving member (not shown) of the socket unit 3GG. In view of this, it is conceivable to use the following configuration, wherein, as illustrated in FIG. 5B, by inserting the groove 3〇1 beyond the ruler DR3 and which is larger than the insertion groove 3 illustrated in FIG. 50A The outer dimensions of the crucible 1 increase the size of the plug receiving portion 302. Therefore, the entire portion of the pin insertion hole 3 (f) is positioned at the upper side of the center CR4 in the vertical direction, which makes it possible to prevent the reverse 201117497 and 'cause the increase in the size of the plug receiving portion 302 to cause an increase in the size of the socket 7G 300 earlier. . m ΐ has the same two walls as the surrounding wall of the dc socket according to the 1ec standard. The DC plug has the ability to allow the user to easily configure the terminal or pin receiver constructed in the DC plug and to supply DC via the bean. The structure of the connection between the wires of electricity. SUMMARY OF THE INVENTION In view of the foregoing, the present invention provides a direct current (DC) socket having a configuration configured to prevent reverse insertion and to avoid an increase in size _ permit wires and ____ _ connected. According to a first aspect of the present invention, a direct current (Dc) socket is provided, the plug being adapted to be connected to the direct current outlet to supply DC power to the plug 'the _ including a multi-head with a round rod shape Pins; and the surrounding walls of the substantially four sides of the package____. The DC socket includes a socket body having a socket unit that is adapted to be connected to the plug-in unit, and the difficult unit is disposed in the front surface of the socket body. Further, the socket unit includes: an insertion groove formed in a substantially rectangular shape (in a plan view as seen in a direction in which the plug is inserted) and the surrounding wall is inserted therein; and a plug receiving portion, which is The insertion groove is surrounded and the shaft is generally rectangular (in the plan view as seen in the insertion direction of the plug). Further, the plug receiving portion includes: a plurality of circular pin insertion holes configured along a reference side of one side 201117497 serving as a side of the receiving portion and a plug pin inserted therein, and the socket body receiving connection is a pin receiving member of the plug pin inserted into the pin insertion hole; a terminal electrically connected to the pin receiving member; and a locking spring adapted to press a wire for supplying DC power to the terminal The electric wire is inserted through a wire insertion hole provided in the socket main body. In the case of the invention as set forth above, the insertion groove has a generally rectangular shape. Therefore, compared with the case where the insertion groove has an annular shape, it is possible to make the insertion direction of the surrounding wall of the plug. This allows the user to easily determine the direction in which the plug is inserted, thereby increasing the ease of use. Further, the pin insertion hole is provided in a position which is opposite to the reference side from the reference side of the plug receiving portion extending in the direction in which the pin insertion hole is disposed, which is opposite to the reference side in the direction perpendicular to the reference side from the plug receiving portion. The side is closer. Due to this feature, it is possible to prevent the plug from being reversely inserted into the DC socket without additionally forming an anti-reverse insertion structure in the insertion groove of the socket or the surrounding wall of the plug. Therefore, it becomes possible to prevent an increase in the size of the dc socket as compared with the case where an anti-reverse insertion structure is additionally formed in the DC outlet. Further, the socket main body includes a wire insertion hole into which a wire for supplying DC power is inserted. A plurality of locking bullets are disposed in the inner space of the socket body to press the wires against the terminals. Due to this feature, the elasticity of the = locking spring can be clamped by the terminal and the locking spring. This makes it possible to easily perform the connection between the wires and the terminals. According to a second aspect of the present invention, a DC f (DC) socket is provided, the plug being adapted to be connected to the DC outlet to supply DC power to the plug of 11 201117497, the plug comprising a round rod a plurality of plug pins; and a surrounding wall for surrounding a substantially quadrilateral shape of the engaged pin. The DC socket ^ includes a socket body having a pop seat unit, and the plug is adapted to be connected to the plug-in unit, and the plug-in unit is disposed in the front surface of the head body. In addition, the seating unit includes: an insertion groove formed into a substantially rectangular shape (in a plan view as seen in the insertion direction of the plug) and the surrounding wall is inserted therein; and a plug receiving portion, It is surrounded by the insertion groove and formed into a substantially rectangular shape (in a plan view as seen in the insertion direction of the plug). Further, the plug-in portion includes a pin insertion hole which is disposed along a peripheral-like reference side serving as a plug-in portion and a plug pin is inserted therein and the socket body receives a plug that is inserted into the pin insertion hole a pin receiving member of the pin; a terminal electrically connected to the pin receiving member; and a screw member mounted at the terminal and adapted to supply a wire for supplying DC power when tightened Pressed on the terminal, the electric wire is inserted through a wire insertion hole provided in the socket main body. With respect to the invention set forth above, the insertion groove has a generally rectangular shape. Therefore, it is possible to restrict the insertion direction of the surrounding wall of the plug as compared with the case where the insertion groove has an annular shape. This allows the user to easily determine the direction in which the plug is inserted, thereby increasing the ease of use. In addition, the pin insertion hole is disposed at a position where the position is from the reference side of the plug receiving portion extending along the direction in which the pin insertion hole is disposed. It is closer to the side of the plug receiving portion opposite to the reference side in the vertical direction perpendicular to the reference side. 12

201117497 I · >/ WAX 由於此特徵，有可能在無需在插座之***凹槽或插頭 之匕圍J巾另外形成防反向插人結構的情況下防止插頭反 向***至DC插座中。因此，與在DC插座中另外形成防 反向***結構之情泥相比，變得有可能防止增加插座 之大]、。 另外藉由上緊螺桿部件而將電線壓在端子體部分 上°因此’與端子體部分與電線是藉由（例如）熔接或烊 接而彼此連接的情況相比，㈣者有可能易 連接至端子體部分的任務。 τ ^电琛 根據本發明之第三態樣，提供—種直流電（Dc)插座， 插頭經調適輯接輯述直流電插座以將dc電力供應給 所述插頭’所難頭包含具有圓桿雜之多储頭插腳； 及用於包圍所述插頭插腳之實質上四邊形形狀之包圍壁。 所述DC插座包含具有插座單元之插座主體，插頭經調適 以連接至插鲜元，所賴解元設置於插座主體之正面 中。另外’所述插座單从含：插人凹槽，其形成為大體 矩形形狀（在如在插頭之***方向上所見之平面圖中）且 所述包圍壁插人其巾；及插頭接納部分，其由所述***凹 槽包圍且形成為大體矩形形狀（在如在插頭之***方向上 所見之平面圖中）。 此外，所述插頭接納部分包含：多個圓形插腳*** 孔，其沿充當插雖納部分之周邊儀—側之參考側來配 置且插頭插赌从其巾’聽座域接納連接至***至 插腳***孔中之插頭插腳的插腳接納件；端子，其電性連 13 201117497 接至所述插雜⑽且部分暴露在插就體外。 就上文陳述之本發明而言，***凹槽具有大體矩形形 狀。因此，與插人凹·有環狀形狀之情況概，有可能 之包圍壁的插人方向。此使得使用者能夠易於斷 疋插頭插人方向，藉此而增加使用之簡易性。此外，插 ***孔設置於某位置中，所述位置距_接納部分之沿插 腳***孔之配置方向延伸的參考織距插頭接納部分之在 垂直於參考側之垂直方向上與參考侧相朗側更近。 由於此特徵，有可能在無需在插座之插人凹槽或播頭 之包圍壁中另外形成防反向插人結構的情況下防止插頭反 向***至DC插座中。因此，與在Dc插座中另外形成防 反向***結構之情況相比’變得有可驗止增加Dc插 之大小。 此外，電線連接至端子之暴露於插座主體外部之部 分，使彳寸可經由端子將DC電力自電線供應至插腳接納 件。由於此特徵，可藉由經由焊接姐接而將電線連接至 端子之暴转分來可靠地執行電軸㈣油件的電性連 接。 【實施方式】 下文中，將參看附圖來更詳細地描述本發明之實施 例，附圖形成本發明之一部分。 將參看圖1來描述設置於住宅H中之直流（DC)配 電系統70的一般態樣β 參看圖1，用於輪出DC電力之D(：電力供應單元71 201117497 w 丨丨 *f 及作為負載受DC電力驅動之電裝置72設置於住宅H中。 DC電力經由DC供應線Wdc而供應給電裝置72，DC供 應線Wdc連接至DC電力供應單元71之輸出端子。就此 而言，電裝置72之實例包含資訊裝置72a (諸如，個人電 腦及其類似者）、照明裝置72b、正門系統（fr〇nt d〇〇r system)裝置72c (諸如，對内電話及其類似者）及家庭安 全裝置72d (諸如，火感測器及其類似者）。 在DC電力供應單元71與電裝置72之間，設置Dc 斷路器7 3 ’用於監視流經D c供應線w d c之電流及用於在 偵測到麻煩時限制或中斷經由DC供應線Wdc自DC電力 供應單元71供應給電裝置72的DC電力。DC斷路器73 與電裝置72成對應關係來設置。 基本上’DC電力供應單元71藉由執行自住宅Ή外部 之交流電源AC供應之電力（例如，商用電力）的轉換來 產生DC電力。更具體言之，經由設置於配電板74中之主 斷路器75將交流電源AC之交流電力輸入至包含開關電源 的AC-DC轉換器76。接著，藉由AC_DC轉換器76將交 抓電力轉換成DC電力。經由協作控制單元（collaborative control她）77將自AC DC轉換器％輸出之dc電力饋 入至各別DC斷路器。 在DC電力供應單元71中，設置以下各者：二次電池 78&其在無電力自交流電源AC供應時（例如，在交流電 ，AC之無法運作週期（⑽邮期間）工作；及太 陽能電池爲或燃料電池78c，用於產生DC電力。二次 15 ε· 201117497 電池78a、太陽能電池78b及燃料電池78c構成與主電源 79相對的分散式電源78，主電源79包含用於自交流電源 AC產生DC電力的AC-DC轉換器76。 協作控制單元77控制自主電源79供應之DC電力及 自分散式電源78饋入之DC電力的分配。協作控制單元 77具備DC-DC轉換器77a。DC-DC轉換器77a將自主電 源79供應之DC電力的電壓及自分散式電源78饋入之Dc 電力的電壓轉換至所要電壓。就上文陳述之組態而言，在 適當時對主電源79及分散式電源78之DC電力進行分配 且將其供應給電裝置72。 就此而言’ DC插座（下文稱作「插座1」）設置於dc 斷路器73中之每一者與電裝置72中之資訊裝置72a中的 每一者或圖中未示之家用電裝置之間。插座1連接至Dc 供應線Wdc中之每一者。資訊裝置72a中之每一者的插頭 1C (參見圖9A、圖9B及圖10)連接至插座1，使得dc 電力供應單元71之DC電力可供應給資訊裝置72a中之每 一者。 第一實施例 現將參看圖2至圖15來描述根據本發明之第一實施 例的DC插座’所述DC插座具體化為嵌入於建築物之牆 璧部分中的DC插座。 首先參看圖2至圖4 ’將對插座1之組態及用於將插 座1安裝至安裝框架2的結構進行描述。 如圖2A中繪示，插座1包含大體矩形實心形狀之插 201117497 座體1A、容納於插座體1A内之插腳接納件1B (參見圖 11A及圖11B)等等。在以下描述中，插頭1C相對於插座 1之***方向（參見圖ίο)被稱作「前後方向（front_back direction)」·。在如在前後方向上所見之平面圖中，插座體 1A之縱向方向被稱作「水平方向」，且插座體丨a之寬度 方向被稱作「垂直方向」。另外，沿前後方向放置插頭1C 之側被稱作「前侧」，且沿前後方向放置插座丨之側被稱作 「後側」。垂直方向與水平方向彼此垂直。 插座體1A包含：大體框形插座主體1〇，其用樹脂材 料射出成型且在前後方向上其前側處開放；及大體框形蓋 2〇，其用樹脂材料射出成型且在前後方向上#後側處開 放。插座體1A更包含一對耦接框架30，所述耦接框架3〇 在蓋20安裝至插座主體1〇後附接在適當位置。耦接框架 30藉由壓製金屬板來形成。插座主體10及蓋20界定用於 容納插腳接納件1B、端子1D、鎖定彈簧1E及釋放按紐 1F (其皆最佳地繪示於圖5中）的内部空間。 插腳接納件1B藉由端子1D及鎖定彈簧1E而連接至 自DC供應、線Wdc(參見圖1)延伸而來之電線，DC供應 線WdC配置於建築物牆壁部分之牆®的背㈣處。此確保 件自DC電力供應單元71(參見圖1)供應給插腳接 八在蓋20之水平相對側處，設置多個耦接框架安裝部 =’其安裝有耦接框架3〇。向前突出超過耦接框架安裂 部为21的大體矩形實心形狀之插座單元22在水平方向上 17 201117497 用於DC電力之榴 設置於多個耦接框架安裝部分21之間 頭1c可移除地連接至插座單元22。 插座單元22具有***凹槽23，所述***凹槽23自插 之正面瓜向後凹陷且形成為大體矩形形狀（在 在則後方向上自前側所見之平面圖中在本實施例中， 在其兩個垂直下部及水平相對轉角處具備傾 插頭1c之插人方向上（亦即，在前後 於π平面圖中)。另外，延伸凹槽部分2孙設置 入凹样t23之下部延伸部之巾心處。插座單元22之插 狀隨電源之供應電壓及電流以及電力供應 电路的種類而變化。 2由插人凹槽23包圍之插座單元22之區域中設置 =頭接納部分24 ’其具有與插座單元22之正面2 :插頭接納部分24在形狀上對應於***凹槽 向為兩個側沿垂直方向延伸且兩個側沿水平方 ^面圈中形形狀(在如在前後方向上自前側所見之 ::中)。兩個插腳***孔25設置於插頭接納部分Μ 有圓形電力供應插聊***孔，其經形成為具 有圓神狀（在如在前後方向上所見之平面圖 如® 2β中所綠示，插腳***孔μ沿參考侧2 Ρ’插頭接㈣分24之沿水付向延伽^ 來配置插人孔24之每-者設 ’所述偏讀置距參考侧灿比距插頭接納部分μ之下 ㈣c更近。換言之，插腳插人孔25設置於插頭接=: 18 201117497 24之中心Cl之上側處（其中該中心Cl表示接合插頭接 納部分24之四個角的兩條對角線（亦即，單點鏈線）的交 點）。 插腳***孔25沿水平方向配置於中心ci之相對側 處。詳言之，垂直方向上插腳***孔25之面向插頭接納部 分24之下側24c的下端部分25a配置於參考側24b與在水 平方向上延伸經過中心C1的直線L1 (雙點鏈線）之間。 亦即’插腳***孔25之下端部分25a沿垂直方向配置於直 線L1之上侧處。 在水平方向上量測的大體矩形插頭接納部分24之寬 度H1在傾斜部分23a及延伸凹槽部分23b不存在之區中 沿垂直方向為實質上恆定的。因此，即使插腳***孔25 設置於垂直方向上中心C1上方，但有可能防止插腳*** 孔25之間的距離D1的減少。此使得有可能防止出現插座 單元200之插腳***孔203之間的距離DR1減少的問題 (如圖49A中所說明）及插座單元2〇〇之大小增加的問題 (如圖49B中所說明）。 由於插腳***孔25經形成為圓形形狀，因此與在圖 及圖50B中所說明之插腳***孔3〇3相比，變&有可 能減少插座單元22在垂直方向上之寬度。因此，如與插腳 番入孔303經形成為矩形形狀使得其長邊可在垂直方向上 =伸（如圖50A及圖50B中所說明）的插座單元3〇〇相比， f可能將插腳插人孔25配置於落在單模組尺寸内的插頭 接納部分24中之中心C1的上側處。因此，有可能防止出 201117497 現插頭反向***至插座單元300中的問題（如圖50A中所 說明）及插座單元300大小增加的問題（如圖5〇B中所說 明）。 如圖3A中所繪示，插座體1A具有遵照·日本工業標 準之大小（參見JIS C 8303)’且形成為落在多達三個模組 中之=者的尺寸（τ文中稱作「單模組尺寸」）内的大小， 所述三個模組可並肩附接至大正方形較型可互換佈線裝置 之固定框架2 (參見JISC 8375) ，定框架2形成為框架形狀且在其中心處具備長邊在 ^方向上延伸之大體矩形開口伽在固賴架 二:端部分中，設置固定地緊固至開關盒(未圖示^ -Γ用於在垂直方向上互連各固定部分41的 ίί，42設置於固定部分41之水平末端部分中 各固定部分41中之每—者且右·筮 (未圖示）***至盆中…：第一通孔43，螺桿 一去 ”中作為用於將各固定部分41中之每 圖:f至開關盒的扣緊部件;以及第二通孔44,螺桿(未 其巾㈣為叫如（細4)之扣緊 各連接部分42中之每—去g进+义μ 部分42中之每—者的内邊/、方向上自連接 仏在裝置固定部分45中，邊m申的裝置固定部分 -者具備兩個垂：之3。中之每 大起31。藉由使突起31與固 20 201117497 定框架2之ID定孔46齡來將插座體1Α安裝至固定框架 2。 如圖4中所綠示，板3在前後方向上之向前側處附接 至固定框架2。板3具有開π 3a，其形絲落在單模組尺 寸内之大小。插座i之插座單元22容納於開口 ％内。因 此’在前後方向上自牆面之前健可看見板3及插座單元 22。 接下來，將參看圖5至圖8來詳細地描述插座i之内 部組態及插座丨中之電性連接結構，所述電性連接結構介 於插腳接納件1B與用於供應！^電力之電線之間。 .參看圖5 ’插座1包含：插腳接納件1B，其用於在插 頭ic***至插座單元22中時與插頭插腳52連接；端子 1D ’其電性連接至插腳接納件扭；多個彈性駭彈箸ie ; 及釋放按紐IF ’其能触壓各鎖定彈簧m，其全部容納 於插座體1A内。 插座1之插魅體1G具有祕容納此粒件之内部 工間。換言之，插腳接納件1B、端子1D、鎖定彈簧 及釋放按鈕IF配置於插座主體1〇之内部空間内。可藉由 將此等組件放在-起來使其簡化。舉_言，插腳接納件 1B與端子ID可形成為單一部件。 在本實施例巾，插座1具備與插腳***孔25之數目 一致的兩個插腳接納件1B。插腳接納件1B中之每—者（其 由導電金屬材料製成）包含用於將插頭插腳％固持在適當 位置中的固持器部分6 0及自固持器部分6 〇持續向後延伸 201117497 接部分61 °畴11部分6G與端子連接部分 611 科種材料而—體式形成。在本實施例中，端子 1D中之一者連接至插腳接納件m中之一者。 如圖5、圖7A及圖7B中所繪示，端子山中之每一 導電金屬㈣製成）包含：插腳搁置部件 (^t-member)連接部分62，其連接至插腳接納件ΐβ中之 每-者的端子連接部分61 ;彈簧移動限制部分63 曲 ㈣簧1E中之每—者；以及端子部分…供應 用之電線巾之每-者連接至所述端子部分64。插 腳摘置部件連接部分62、彈簧移動限制部分63及端子部 分64經由使用單種材料而一體式形成。在連接用於將％ 電力供應給端子部分64之電線L (參見圖7B)中之每一 者後，即經由插腳搁置部件連接部分62而將沉電力供應 給插腳接納件1B。在本實施例中，鎖定彈簧1E中之兩者 設置於端子1D中之一者上。 鎖定彈簧1E中之每-者（其由導電金屬材料製成） ^含用於有彈性地按壓電線L中之每-者的按壓件65。按 壓件f在水平方向上彈性變形。在本實施例中，按壓件 65包含·第一按壓件65a，用於在前後方向上在後側處按 壓電線L中之每一者；及第二按壓件65b，用於在前後方 向上在前側處按壓電線L中之每一者。 各釋放按鈕1F中之每一者設置於配置於端子1D中之 每者中的鎖定彈簧1E中。鎖定彈簧正與端子1D中之 每一者的端子連接部分61成相對關係而設置於插座主體 22 201117497 10之内部空間内。 勺人：ίίί 1F中之每一者（其由絕緣合成樹脂製成） 包含可與鎖疋彈簧則合之套環_ar)部分66。亦即， ，放按紐1F中之每—者能夠藉由套環部分66而按壓鎖定 彈簧1E之第一按壓件65a。 自DC供應線Wdc延伸以供應Dc電力的電線以參 見圖7B)在前後方向上自後側配合至插座丨之插座主體 10。如圖6中可見，插座體1A之插座主體1〇具有***電 線L之電線插人孔u。電線插人孔u之數目 1E之數目而定。 ’ 為將插腳接納件1B電性連接至DC供應線Wdc，自 插座主體ig外部將電線L插人且穿過魏插人孔^。圖 7Α為繪示在電線L插人至f_人孔11中之前的插座1 之狀態的示意剖面圖。在圖7A巾，以橫截面來僅繪示插 座主體1〇。此橫戴面是沿圖6中之單點鏈線S1-S1而截 取。圖7B騎示在電線L插人至f線插人孔u中之後的 ^座1之狀‘4的不意剖賴。在圖7B中，以橫截面來僅 ==座主體1G。此橫截面是沿圖6中之單點鏈 而截取。 11中及圖7B中所繪示，插人且穿過電線***孔 之每一的電線L中之每一者受驅動而至端子1D中 件65之：==定彈菁1E中之每-者的按壓 而移動，藉由其復;^件彈性變形以赫端子部分64 ^八’、力使電線L十之每一者保持在適當位 23 201117497 置中。亦即，電線L中之每一者藉由端子1D及鎖定彈簧 1E來夾住。 在本實施例中，電線L中之每一者在兩個點處藉由第 一按壓件65a及第二按壓件65b來夾住。與電線L·中之每 一者在一點處被夾住的情況相比，此使得有可能將電線1 中之每一者穩固地固持在適當位置中。以此方式，藉由鎖 定彈簧1E將***且穿過電線***孔u以供應DC電力之 電線L壓在端子1D上。因此，自DC供應線wdc延伸之 電線L經由鎖定彈簧ιέ及端子1D而連接至插腳接納件 1B。 在本實施例中，可藉由將工具（未圖示）自後側驅動 至插座主體10中且接著執行指定任務來將驅動至插座主 體10中之電線L拉出。如圖6中所繪示，在數目上與釋 放按紐1F對應之工具***孔形成於插座體ία之插座 主體ίο中。諸如小型起子(driver)或其類似者之工具可插 入至工具***孔12中。 為自插座主體10拉出由端子1D及鎖定彈簧m夾住 之電線L，將工具（未圖示）***且穿過工具***孔12中 之一者以操作各釋放按鈕1F中之一者.圖8A為繪示在電 線L中之每一者***至電線***孔u中之每一者中後但 在藉由所述工具操作釋放按鈕1F中之一者之前的可用狀 態的不意剖面圖。在圖8A中，以橫截面來僅繪示插座主 體。此橫截面是沿圖6中之單點鏈線S2_S2截取。圖8B 為繪示在藉由所述工具來操作各釋放按鈕IF中之一者後 24 201117497 -^^T-rjpxf 的：：狀態的示意剖面圖。在圖8β，，以橫截面來僅繪 =。上主體10。此橫截面亦沿圖6中之單點鍵線S2 S2戴 謎8A ^繪示，在釋放按紐1F未藉由所述工具來 下’電中之每—者藉由第-按壓件祝及 件㈣在兩個點處纽。若釋放按鈕1F中之- 圖8B中所繪示般操作’則釋放按⑭if中之每一者的 分66按壓第一按壓件65a。換言之，釋放按鈕if 者按壓鎖定彈*1E，使得第一按壓件祝可遠離 it每一者而移動。因此，第-按壓件65a及端子 可自炎住電線匕中之每—者釋放。藉由釋放在兩 处县於電線L中之每一者的—點處的失持，變得有可 此易於自插座主體10拉出電線匕中之每一者。 接下來’將參看圖9至圖U來描述插頭⑴之植離及 用於將插頭1C***至插座1中的結構^ “ 參看圖9A，插頭1C包含電麗部分5〇及連接 ，分50之插頭體Μ。插頭體51具有在前後方向上與插】 i之插頭接納部分24 (參見圖1〇)相對的相對表面化。 =目2面51a上，設置有在lt後方向上自相對表面& 向=出的兩個插頭插腳52及用於在外部遮蓋插頭插腳 52的大體矩形的包圍壁53。插頭插腳52經設置 =上繼向後突出而超過該包_ 53。該包圍壁^經 、、且態以具有對應於插座1之***凹槽23之开彡狀 y 如圖9B中所繪示，插頭插腳52設私包3 = 25 201117497 中心C2的上侧處（其中該中心C2表示接合該包圍壁幻 之四個角的兩條對角線（亦即，單點鏈線）之交點）。插頭 插腳52沿水平方向而配置於中心C2之相對侧處。詳言 之，插頭插腳52之下端部分52a配置於水平方向上延伸而 經過中心C2之直線L2 (雙點鏈線）上方。 在如圖10中所繪示插頭1C配合至插座1時，插頭體 51之包圍壁53***至插座單元22之***凹槽23中。此 時’插頭插腳52***至插腳***孔25中。 在遵照IEC標準之習知插座單元11〇中，如圖48A及 圖48B中所繪示，***凹槽111及包圍壁1〇2經形成以具 有圓形形狀（在如在前後方向上所見之平面圖中）。此意謂 插頭100之包圍壁102可在圓周方向上以36〇度***至插 入凹槽111中。 然而，在本實施例中，***凹槽23及包圍壁53具有 j體正方形形狀（或大體矩形形狀）（在如在前後方向上自 月’J侧所見之平面圖中）。此意謂包圍壁53相對於***凹槽 23之***方向限於兩個方向。藉由以此方式來限制插頭冗 相對於插座1之***方向，變得令使用者有可能易於決定 插頭1C***至插座1中的方向。因此，使用者可易於將 插頭1C***至插座1中，同時避免反向***。 參看圖11A，插腳接納件1B配置於插腳***孔25 中。在如圖11B中所說明插頭1C***至插座丨中時，插 頭1C之插頭插腳52保持由插座】之插腳接納件夹住。 此時，固持器(holder)部分6〇彈性變形以藉由其彈力將插 26 201117497. 固持在適當位置。因此’插座1及插頭1C進入 在如㈣中所說明的使用者試圖將插頭10:反向*** f插座1中的情況下，_ 1C之插頭播腳52在垂直方向 上位於插頭接納部分24之中心C1下*λ* m 52與插頭接納部* 24之正而此’插頭插腳 接㈣歧得不可能 在此狀態下’插腳***孔25與插頭插腳Μ在垂直方 單元狀將參看圖13來描猶供應電壓變化的插座 雷愿兀22之形狀可如下地改變。不同種類之供應 供庫單1 7二：、12 V、24 乂及48 V)用於自Dc電； 電力來操作的電裝置72。因此，變得 :::藉由改變***凹槽23及插頭接納部分24 (亦^ 插座早兀22之大體矩形部分）之四個角中之至少 狀來根據供應電壓而鑑別插座單元22。 、心 更具體言之，—個或兩個傾斜部分2%與6 v 個角中v，m屢成對㈣係而形成於插人凹槽23之四 奸通妓⑹種情況τ，24v之供應電㈣作參考電>1。 亦24之四個角中對應於傾斜部分233的一此角 亦形成為與傾斜部分23a—致的傾斜形狀。 ‘角 若供應額為6V，如圖13A中所緣示，則一個傾斜 27 201117497^ 部分23a形成於***凹槽23之四個角中的右下角中。若供 應電壓為12 V，如圖13B中所繪示，則一個傾斜部分23a 形成於***凹槽23之四個角中的左下角中。若電源電壓為 48 V，如圖13C中所繪示，則兩個傾斜部分23&形成於插 入凹槽23之四個角中的左下角及右下角中。若電源電壓為 24 V，如圖13D中所繪示，則無傾斜部分形成於***凹槽 23之四個角中的任一角中。 類似地，插頭1C之包圍壁53具有與***凹槽23之 形狀一致地形成之一個或兩個傾斜部分。此使得有可能根 據供應電壓來鑑別插座單元22。因此，除非插頭ic之包 圍壁53的形狀匹配插座單元22之***凹槽23的形狀，否 則插頭1C不可***至插座1中。此防止供應電壓彼此不 同的插座1與插頭1C之間的連接。 參看圖19,形狀隨供應電壓變化且遵照IEC標準的比 較插座單元400具有根據供應電壓而形成的四個切開凹槽 404至407。更具體言之，具有環狀形狀（在如在前後方向 上所見之平面圖中）的***凹槽401形成於插座單元4〇〇 中。在由***凹槽401包圍之插頭接納部分402中，形成 ***插頭（未圖示）之插頭插腳的插腳***孔4〇3。 沿插頭接納部分402之下周邊邊緣，以一方式形成切 開凹槽404至407 ’使得其與***凹槽401組合且在徑向 上自***凹槽401向内凹陷。在插頭接納部分402之上周 邊邊緣中，形成用於防止插頭之反向***的切開凹槽4〇8。 就此而言’切開凹槽404至407對應於供應電壓6 V、 28 201117497 —,~r~r^ max 12 V、24 V及48 V，且形成於自存在切開凹槽408之參考 位置（0。）起順時針方向之120°、150°、210。及240。位置 中。不同種類之插頭包含與切開凹槽404至407成對應關 係而設置的不同之識別肋狀物。識別肋狀物中之一者插人 至切開凹槽404至407中之相應一者中，藉此確保匹配供 應電壓之插頭***至插座單元400中。 然而，在插座單元400中，各切開凹槽404及407配 置於插腳***孔403附近。此情形引起插頭接納部分4〇2 遭受強度降低的問題。另外，由於插頭中之每一者的識別 肋狀物形成於包圍壁之内表面上’因此使用者難以在插頭 之前後方向上自前侧用視覺確認所述識別肋狀物的位置。 為此’使用者需要自插頭之後側確認所述識別肋狀物之位 置以將插頭之識別肋狀物的位置與插座單元4〇〇之切開凹 槽404至407中之相應者的位置對準，且接著將插頭*** 至插座單元400中。此使將使插頭***至插座單元4⑻中 之任務變複雜。 然而，在本實施例之插座丨中，傾斜部分23a形成於 ***凹槽23之四個角中的下部角中。由於此特徵，盥上文 剛剛陳述之習知插座單元_的組態相比，傾斜部分^ 與插腳插人孔25之_距離變大。因此，與f知插座單元 4 〇 0之組態減’有可緖止插鄕納部分2 *之強度降低。 由於插頭1C之包圍壁53的總體形狀視供應電壓而改 制者可在插頭1C之前後方向上在前側處用視 覺確魂插頭1C㈣於插座單元22的匹配位置。此使得使 29 201117497 用者有可能易於將插頭1C***至插座單元22中。 接下來，將參看圖14A及圖14B來描述隨作為電源之 電力供應電路（未圖示）之種類而變的插座單元22之形 狀°電力供應電路設置於DC電力供應單元71與插座1之 間且安裝（例如）於配電板74内。 電力供應電路包含至少兩種電路，亦即特低電壓電路 (extra-low voltage circuit，ELV )及安全特低電壓電路 (safety extra-low voltage circuit，SELV )。ELV 及 SELV 分 別在IEC標準中之IEC60950-1及IEC60335-1中指定。 電裝置72 (參見圖1)具有不同的内部絕緣結構，此 視使用ELV及SELV中之哪一者而定。更具體言之，具有 ELV之電裝置72使用雙絕緣結構或加強型絕緣結構，此 意謂所述絕緣結構極其嚴格。相反，情況有時為具有SELV 之電裝置72不使用雙絕緣結構或加強型絕緣結構。因此， 具有SELV之電裝置72的絕緣結構比具有ELV之電裝置 72的絕緣結構簡單。201117497 I · >/ WAX Due to this feature, it is possible to prevent the plug from being reversely inserted into the DC outlet without the need to insert a recess or plug in the socket to form an anti-reverse insertion structure. Therefore, it becomes possible to prevent an increase in the size of the socket as compared with the case where the anti-reverse insertion structure is additionally formed in the DC outlet. In addition, by tightening the screw member, the electric wire is pressed against the terminal body portion. Therefore, compared with the case where the terminal body portion and the electric wire are connected to each other by, for example, welding or splicing, (4) may be easily connected to The task of the terminal body part. According to a third aspect of the present invention, a DC (Dc) socket is provided, and the plug is adapted to serialize a DC power socket to supply dc power to the plug. a plurality of header pins; and a surrounding wall for surrounding a substantially quadrilateral shape of the plug pins. The DC socket includes a socket body having a socket unit, and the plug is adapted to be connected to the plug-in unit, and the solution element is disposed in the front surface of the socket body. Further, the socket includes: an insertion groove formed in a substantially rectangular shape (in a plan view as seen in the insertion direction of the plug) and the surrounding wall is inserted into the towel; and a plug receiving portion, It is surrounded by the insertion groove and formed into a substantially rectangular shape (in a plan view as seen in the insertion direction of the plug). Further, the plug receiving portion includes: a plurality of circular pin insertion holes configured along a reference side of the peripheral-side portion serving as a plug-in portion and the plug-in bet is received from the towel's receiving area to be inserted into The pin is inserted into the pin receiving member of the plug pin in the hole; the terminal, the electrical connection 13 201117497 is connected to the plug (10) and partially exposed to the outside of the body. In the case of the invention as set forth above, the insertion groove has a generally rectangular shape. Therefore, it is possible to enclose the direction in which the wall is inserted, in the case of a recessed shape and a ring shape. This allows the user to easily break the direction in which the plug is inserted, thereby increasing the ease of use. Further, the insertion insertion hole is provided in a position which is opposite to the reference side in the vertical direction perpendicular to the reference side from the reference weaving plug receiving portion of the receiving portion extending in the direction in which the pin insertion hole is disposed closer. Due to this feature, it is possible to prevent the plug from being reversely inserted into the DC outlet without additionally forming an anti-reverse insertion structure in the surrounding recess of the socket or the surrounding wall of the head. Therefore, it becomes possible to suppress the increase in the size of the Dc insertion as compared with the case where the anti-reverse insertion structure is additionally formed in the Dc socket. In addition, the wires are connected to portions of the terminals that are exposed to the outside of the socket body so that the DC power can be supplied from the wires to the pin receivers via the terminals. Due to this feature, the electrical connection of the electric shaft (4) oil member can be reliably performed by connecting the electric wire to the terminal of the terminal by soldering. [Embodiment] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings, which form a part of the invention. A general aspect β of a direct current (DC) power distribution system 70 provided in a house H will be described with reference to Fig. 1. Referring to Fig. 1, a D for turning off DC power (: power supply unit 71 201117497 w 丨丨*f and as The electric device 72 whose load is driven by DC power is disposed in the house H. The DC power is supplied to the electric device 72 via the DC supply line Wdc, and the DC supply line Wdc is connected to the output terminal of the DC power supply unit 71. In this regard, the electric device 72 Examples include information devices 72a (such as personal computers and the like), lighting devices 72b, front door system devices 72c (such as internal telephones and the like), and home security devices. 72d (such as a fire sensor and the like). Between the DC power supply unit 71 and the electric device 72, a Dc breaker 7 3 ' is provided for monitoring the current flowing through the D c supply line wdc and for When the trouble is detected, the DC power supplied to the electric device 72 from the DC power supply unit 71 via the DC supply line Wdc is limited or interrupted. The DC breaker 73 is disposed in correspondence with the electric device 72. Basically, the 'DC power supply unit 71 borrows Executed from outside the residence The conversion of the power supplied by the AC power source AC (for example, commercial power) to generate DC power. More specifically, the AC power of the AC power source AC is input to the power source including the switching power supply via the main breaker 75 provided in the power distribution board 74. AC-DC converter 76. Next, the AC power is converted into DC power by the AC_DC converter 76. The dc power output from the AC DC converter % is fed to each respective via a collaborative control unit 77 DC circuit breaker. In the DC power supply unit 71, the following are provided: the secondary battery 78& which operates when no power is supplied from the AC power source AC (for example, during alternating current, AC inoperable period ((10) postal period); And the solar cell is or the fuel cell 78c for generating DC power. The secondary 15 ε·201117497 battery 78a, the solar cell 78b and the fuel cell 78c constitute a distributed power source 78 opposite to the main power source 79, and the main power source 79 is included for The AC power source AC generates an AC-DC converter 76 of DC power. The cooperative control unit 77 controls the distribution of the DC power supplied from the autonomous power source 79 and the DC power fed from the self-dispersion power source 78. The cooperative control unit 77 is provided with a DC-DC converter 77a. The DC-DC converter 77a converts the voltage of the DC power supplied from the autonomous power source 79 and the voltage of the Dc power fed from the distributed power source 78 to a desired voltage. For the configuration, the DC power of the main power source 79 and the distributed power source 78 is distributed and supplied to the electric device 72 as appropriate. In this regard, the 'DC socket (hereinafter referred to as "socket 1") is set to dc open circuit. Each of the devices 73 is interposed with each of the information devices 72a in the electrical device 72 or a household electrical device not shown. The socket 1 is connected to each of the Dc supply lines Wdc. The plug 1C (see Figs. 9A, 9B, and 10) of each of the information devices 72a is connected to the outlet 1 so that the DC power of the dc power supply unit 71 can be supplied to each of the information devices 72a. First Embodiment A DC socket according to a first embodiment of the present invention will now be described with reference to Figs. 2 to 15 in which the DC socket is embodied as a DC socket embedded in a wall portion of a building. Referring first to Figures 2 to 4', the configuration of the socket 1 and the structure for mounting the socket 1 to the mounting frame 2 will be described. As shown in Fig. 2A, the socket 1 comprises a substantially rectangular solid shaped plug 201117497 seat 1A, a pin receiver 1B housed in the socket body 1A (see Figs. 11A and 11B) and the like. In the following description, the insertion direction of the plug 1C with respect to the socket 1 (see FIG. ίο) is referred to as "front_back direction". In the plan view as seen in the front-rear direction, the longitudinal direction of the socket body 1A is referred to as "horizontal direction", and the width direction of the socket body 丨a is referred to as "vertical direction". Further, the side where the plug 1C is placed in the front-rear direction is referred to as "front side", and the side where the socket 放置 is placed in the front-rear direction is referred to as "rear side". The vertical direction and the horizontal direction are perpendicular to each other. The socket body 1A includes: a substantially frame-shaped socket body 1〇 which is injection-molded with a resin material and opened at a front side thereof in the front-rear direction; and a substantially frame-shaped cover 2〇 which is injection-molded with a resin material and is in the front-rear direction Open at the side. The socket body 1A further includes a pair of coupling frames 30, which are attached in position after the cover 20 is mounted to the socket body 1A. The coupling frame 30 is formed by pressing a metal plate. The socket body 10 and the cover 20 define an internal space for receiving the pin receiving member 1B, the terminal 1D, the lock spring 1E, and the release button 1F (both of which are best illustrated in Fig. 5). The pin receiving member 1B is connected to the electric wire extending from the DC supply, the wire Wdc (see Fig. 1) by the terminal 1D and the lock spring 1E, and the DC supply wire WdC is disposed at the back (4) of the wall® of the wall portion of the building. This securing member is supplied from the DC power supply unit 71 (see Fig. 1) to the pin connector 8 at the horizontal opposite side of the cover 20, and a plurality of coupling frame mounting portions are disposed =' which is mounted with the coupling frame 3''. The socket unit 22 of the substantially rectangular solid shape that protrudes forwardly beyond the coupling frame damming portion 21 is horizontally 17 201117497 is disposed between the plurality of coupling frame mounting portions 21 for DC power. Groundly connected to the outlet unit 22. The socket unit 22 has an insertion groove 23 which is recessed rearward from the front surface of the insertion and is formed into a substantially rectangular shape (in the plan view seen from the front side in the subsequent direction, in the present embodiment, in both The vertical lower portion and the horizontal opposite corner are provided with the insertion direction of the tilting plug 1c (that is, in the front and rear π plan views). Further, the extending groove portion 2 is disposed at the center of the extension of the lower portion of the concave portion t23. The insertion shape of the socket unit 22 varies depending on the supply voltage and current of the power source and the kind of the power supply circuit. 2 The area of the socket unit 22 surrounded by the insertion recess 23 is set = the head receiving portion 24' has the socket unit 22 The front side 2: the plug receiving portion 24 corresponds in shape to the insertion groove so that the two sides extend in the vertical direction and the two sides are formed in a horizontal shape in the horizontal direction (as seen from the front side in the front-rear direction: : middle). Two pin insertion holes 25 are provided in the plug receiving portion Μ There is a circular power supply plug-in insertion hole which is formed to have a round shape (in a plan view as seen in the front-rear direction such as ® 2β Green, the pin insertion hole μ along the reference side 2 Ρ 'plug connection (four) points 24 along the water to the extension gamma ^ to configure the insertion hole 24 each - the 'the read bias distance reference side can be compared to the plug The receiving portion μ is closer to (4) c. In other words, the pin insertion hole 25 is provided at the upper side of the center of the plug connector: 18 201117497 24 (wherein the center C1 represents two pairs of four corners of the engaging plug receiving portion 24) The intersection of the corner lines (that is, the single-dot chain lines). The pin insertion holes 25 are disposed at the opposite sides of the center ci in the horizontal direction. In detail, the pin insertion holes 25 are vertically facing the plug receiving portion 24 in the vertical direction. The lower end portion 25a of the side portion 24c is disposed between the reference side 24b and a straight line L1 (double-point chain line) extending in the horizontal direction through the center C1. That is, the lower end portion 25a of the 'pin insertion hole 25 is disposed in the vertical direction on the straight line L1. The upper side. The width H1 of the substantially rectangular plug receiving portion 24 measured in the horizontal direction is substantially constant in the vertical direction in the region where the inclined portion 23a and the extended groove portion 23b are not present. Therefore, even if the pin is inserted Hole 25 is set to vertical Upwardly above the center C1, it is possible to prevent a decrease in the distance D1 between the pin insertion holes 25. This makes it possible to prevent the problem that the distance DR1 between the pin insertion holes 203 of the socket unit 200 is reduced (as illustrated in Fig. 49A). And the problem that the size of the socket unit 2 is increased (as illustrated in Fig. 49B). Since the pin insertion hole 25 is formed into a circular shape, the pin insertion hole 3〇3 illustrated in Fig. 50B and Fig. 50B In contrast, it is possible to reduce the width of the socket unit 22 in the vertical direction. Therefore, if the insertion hole 303 is formed into a rectangular shape, the long side thereof can be extended in the vertical direction (as shown in FIG. 50A and FIG. In contrast to the socket unit 3A described in 50B, f may arrange the pin insertion hole 25 at the upper side of the center C1 of the plug receiving portion 24 that falls within the size of the single module. Therefore, it is possible to prevent the problem that the plug 1710 is inserted backward into the socket unit 300 (as illustrated in Fig. 50A) and the problem that the size of the socket unit 300 is increased (as shown in Fig. 5B). As shown in FIG. 3A, the socket body 1A has a size conforming to the Japanese Industrial Standard (see JIS C 8303)' and is formed to fall within the size of up to three modules (referred to as "single mode" in τ The size of the group size "), the three modules can be attached side by side to the fixed frame 2 of the large square type interchangeable wiring device (see JIS C 8375), the frame 2 is formed into a frame shape and has a center at its center The generally rectangular opening extending in the ^ direction of the long side is affixed in the second end portion of the fixing frame, and is fixedly fastened to the switch box (not shown for interconnecting the fixed portions 41 in the vertical direction) Ίί, 42 is disposed in each of the fixed portions 41 in the horizontal end portion of the fixed portion 41, and the right 筮 (not shown) is inserted into the basin...: the first through hole 43, the screw is used as a For each of the fixing portions 41: f to the fastening member of the switch box; and the second through hole 44, the screw (not the towel (4) is called (fine 4), each of the fastening portions 42 - the inner edge of each of the parts of the portion 42 is removed, and the direction is self-connected to the fixed portion of the device 4 In the case of 5, the fixed part of the device is provided with two verticals: 3, each of which is 31. The socket body 1 is made by making the protrusion 31 and the solid 20 201117497 the ID of the frame 2 to be 46 years old. Mounted to the fixed frame 2. As shown in Fig. 4, the plate 3 is attached to the fixed frame 2 at the front side in the front-rear direction. The plate 3 has an opening π 3a whose size falls within the size of the single module. The socket unit 22 of the socket i is housed in the opening %. Therefore, the board 3 and the socket unit 22 can be seen from the front of the wall in the front-rear direction. Next, the socket i will be described in detail with reference to FIGS. 5 to 8. The internal configuration and the electrical connection structure in the socket, the electrical connection structure being between the pin receiving part 1B and the electric wire for supplying power. See Fig. 5 'The socket 1 comprises: the pin receiving part 1B It is used to connect with the plug pin 52 when the plug ic is inserted into the socket unit 22; the terminal 1D' is electrically connected to the pin receiver twist; a plurality of elastic magazines; and the release button IF' Each of the lock springs m is pressed, and all of them are housed in the socket body 1A. The internal working chamber for accommodating the granular member. In other words, the pin receiving member 1B, the terminal 1D, the locking spring and the release button IF are disposed in the inner space of the socket body 1 。. In other words, the pin receiving member 1B and the terminal ID can be formed as a single member. In the present embodiment, the socket 1 is provided with two pin receiving members 1B in accordance with the number of the pin insertion holes 25. In the pin receiving member 1B Each of them (made of a conductive metal material) includes a holder portion 60 for holding the plug pin % in place and a self-retainer portion 6 〇 extending continuously backwards 201117497 to a portion 61 ° domain 11 portion 6G and The terminal connecting portion 611 is formed of a material of a variety of materials. In the present embodiment, one of the terminals 1D is connected to one of the pin receivers m. As shown in FIG. 5, FIG. 7A and FIG. 7B, each of the conductive metals (four) in the terminal mountain comprises: a pin rest member (^t-member) connecting portion 62 connected to each of the pin receiving members ΐβ. Each of the terminal connection portions 61 of the springs; the spring movement restricting portion 63; each of the curved (four) springs 1E; and each of the wire portions for supplying the terminal portions is connected to the terminal portion 64. The pinch-off member connecting portion 62, the spring movement restricting portion 63, and the terminal portion 64 are integrally formed by using a single material. The sinking power is supplied to the pin receiver 1B after connecting each of the wires L (see Fig. 7B) for supplying the % power to the terminal portion 64, i.e., via the pin rest member connecting portion 62. In the present embodiment, both of the lock springs 1E are provided on one of the terminals 1D. Each of the lock springs 1E (which is made of a conductive metal material) contains a pressing member 65 for elastically pressing each of the electric wires L. The pressing member f is elastically deformed in the horizontal direction. In the present embodiment, the pressing member 65 includes a first pressing member 65a for pressing each of the electric wires L at the rear side in the front-rear direction, and a second pressing member 65b for arranging in the front-rear direction Each of the wires L is pressed at the front side. Each of the release buttons 1F is disposed in the lock spring 1E disposed in each of the terminals 1D. The lock springs are disposed in the opposing space of the socket main body 22 201117497 10 in an opposing relationship with the terminal connection portion 61 of each of the terminals 1D. Spoon person: ίίί 1F (which is made of insulating synthetic resin) includes a collar _ar portion 66 that can be engaged with a lock spring. That is, each of the release buttons 1F can press the first pressing member 65a of the lock spring 1E by the collar portion 66. The electric wire extending from the DC supply line Wdc to supply the Dc electric power is fitted to the socket main body 10 of the socket 自 from the rear side in the front-rear direction as shown in Fig. 7B). As seen in Fig. 6, the socket main body 1 of the socket body 1A has a wire insertion hole u into which the electric wire L is inserted. The number of wires inserted into the hole u depends on the number of 1E. To electrically connect the pin receiver 1B to the DC supply line Wdc, the wire L is inserted from the outside of the socket body ig and passed through the hole. Fig. 7A is a schematic cross-sectional view showing the state of the socket 1 before the electric wire L is inserted into the f_manhole 11. In Fig. 7A, only the socket body 1'' is shown in cross section. This transverse wear surface is taken along the single-dot chain line S1-S1 in Fig. 6. Fig. 7B shows the unintentional division of the shape of the "seat 1" after the electric wire L is inserted into the f-line insertion hole u. In Fig. 7B, only the seat body 1G is == in cross section. This cross section is taken along the single point chain in Figure 6. 11 and 7B, each of the wires L inserted and passing through each of the wire insertion holes is driven to the terminal 65 of the terminal 1D: == each of the fixed elastics 1E - The user moves by pressing, and the member is elastically deformed to hold each of the wires L 10 in the appropriate position 23 201117497 by the Her terminal portion 64 ^8'. That is, each of the electric wires L is clamped by the terminal 1D and the lock spring 1E. In the present embodiment, each of the electric wires L is sandwiched by the first pressing member 65a and the second pressing member 65b at two points. This makes it possible to firmly hold each of the electric wires 1 in place as compared with the case where each of the electric wires L· is clamped at one point. In this way, the electric wire L which is inserted and passed through the electric wire insertion hole u to supply DC power is pressed against the terminal 1D by the lock spring 1E. Therefore, the electric wire L extending from the DC supply line wdc is connected to the pin receiver 1B via the lock spring ι and the terminal 1D. In the present embodiment, the electric wire L driven into the socket main body 10 can be pulled out by driving a tool (not shown) from the rear side into the socket main body 10 and then performing a designated task. As shown in Fig. 6, the tool insertion holes corresponding in number to the release button 1F are formed in the socket body ίο of the socket body ία. A tool such as a small driver or the like can be inserted into the tool insertion hole 12. To pull out the electric wire L sandwiched by the terminal 1D and the lock spring m from the socket main body 10, a tool (not shown) is inserted and passed through one of the tool insertion holes 12 to operate one of the release buttons 1F. FIG. 8A is a schematic cross-sectional view showing an available state after each of the electric wires L is inserted into each of the electric wire insertion holes u but before one of the release buttons 1F is operated by the tool. In Fig. 8A, only the socket body is shown in cross section. This cross section is taken along the single-dot chain line S2_S2 in Fig. 6. Figure 8B is a schematic cross-sectional view showing the state of the :: 2011 17497 -^^T-rjpxf after the one of the release buttons IF is operated by the tool. In Fig. 8β, only the = is plotted in cross section. Upper body 10. The cross section is also depicted along the single-point key line S2 S2 in FIG. 6 , and the release button 1F is not used by the tool to lower each of the 'electricity' (4) at two points. If the operation in the button 1F - as shown in Fig. 8B is released, the first pressing member 65a is released by pressing the portion 66 of each of the 14if. In other words, the release button if person presses the locking bullet *1E so that the first pressing member can move away from each of it. Therefore, the first pressing member 65a and the terminal can be released from each of the inflamed wires. By releasing the loss of the point at each of the two counties in the electric line L, it becomes possible to easily pull each of the electric wires from the socket main body 10. Next, the structure of the plug (1) and the structure for inserting the plug 1C into the socket 1 will be described with reference to Figs. 9 to U. Referring to Fig. 9A, the plug 1C includes the electric portion 5 and the connection, and is divided into 50 The plug body 51 has a relative surface opposite to the plug receiving portion 24 (see Fig. 1A) of the plug in the front-rear direction. The head surface 51a is provided with the opposite surface & The two plug pins 52 that are out = and the substantially rectangular surrounding wall 53 for covering the plug pins 52 at the outside. The plug pins 52 are arranged to protrude rearward beyond the package _ 53. The state has an opening shape y corresponding to the insertion groove 23 of the socket 1. As shown in FIG. 9B, the plug pin 52 is provided at the upper side of the center C2 (where the center C2 indicates the engagement). The intersection of the two diagonal lines (ie, the single-point chain line) surrounding the four corners of the wall. The plug pins 52 are disposed in the horizontal direction at opposite sides of the center C2. In detail, the plug pins 52 The lower end portion 52a is disposed in a straight line L2 extending in the horizontal direction and passing through the center C2 ( When the plug 1C is fitted to the socket 1 as shown in FIG. 10, the surrounding wall 53 of the plug body 51 is inserted into the insertion groove 23 of the socket unit 22. At this time, the 'plug pin 52 is inserted into the pin. Inserted into the hole 25. In the conventional socket unit 11A according to the IEC standard, as shown in Figs. 48A and 48B, the insertion groove 111 and the surrounding wall 1〇2 are formed to have a circular shape (as in In the plan view seen in the front-rear direction, this means that the surrounding wall 102 of the plug 100 can be inserted into the insertion groove 111 at 36 degrees in the circumferential direction. However, in the present embodiment, the insertion groove 23 and the surrounding wall are inserted. 53 has a j-body square shape (or a substantially rectangular shape) (in a plan view as seen from the side of the month 'J in the front-rear direction). This means that the insertion direction of the surrounding wall 53 with respect to the insertion groove 23 is limited to two directions. By restricting the insertion direction of the plug with respect to the insertion direction of the socket 1 in this way, it becomes possible for the user to easily determine the direction in which the plug 1C is inserted into the socket 1. Therefore, the user can easily insert the plug 1C into the socket 1. While avoiding reverse insertion Referring to Fig. 11A, the pin receiving member 1B is disposed in the pin insertion hole 25. When the plug 1C is inserted into the socket as illustrated in Fig. 11B, the plug pin 52 of the plug 1C is held by the pin receiving member of the socket. At this time, the holder portion 6 is elastically deformed to hold the plug 26 201117497. by its elastic force. Therefore, the socket 1 and the plug 1C enter the user who is trying to insert the plug 10 as explained in (4): In the case of being inserted into the f socket 1, the plug foot 52 of the _ 1C is vertically located at the center C1 of the plug receiving portion 24 * λ * m 52 and the plug receiving portion * 24 is positive and the 'plug pin is connected (4) It is impossible to distinguish in this state that the shape of the socket insertion hole 25 and the plug pin in the vertical square shape will be changed as follows with reference to FIG. 13 to describe the shape of the socket. Different types of supply supply warehouses 1 7 2:, 12 V, 24 乂 and 48 V) for electrical equipment 72 for operation from DC power; Therefore, it becomes ::: the socket unit 22 is discriminated from the supply voltage by changing at least the four corners of the insertion groove 23 and the plug receiving portion 24 (also the substantially rectangular portion of the socket early 22). More specifically, the heart is more or less, one or two inclined parts 2% and 6 v angles v, m are pairs (4) and formed in the insertion groove 23 of the four traits (6) cases τ, 24v Supply electricity (four) for reference electricity >1. Also, a corner corresponding to the inclined portion 233 among the four corners of the 24 is formed in an inclined shape conforming to the inclined portion 23a. 'Angle If the supply amount is 6V, as shown in Fig. 13A, a tilt 27 201117497^ portion 23a is formed in the lower right corner among the four corners of the insertion groove 23. If the supply voltage is 12 V, as shown in Fig. 13B, an inclined portion 23a is formed in the lower left corner among the four corners of the insertion groove 23. If the power supply voltage is 48 V, as shown in Fig. 13C, the two inclined portions 23 & are formed in the lower left corner and the lower right corner among the four corners of the insertion recess 23. If the power supply voltage is 24 V, as shown in Fig. 13D, no inclined portion is formed in any one of the four corners of the insertion groove 23. Similarly, the surrounding wall 53 of the plug 1C has one or two inclined portions formed in conformity with the shape of the insertion groove 23. This makes it possible to identify the outlet unit 22 based on the supply voltage. Therefore, unless the shape of the wall 53 of the plug ic matches the shape of the insertion groove 23 of the socket unit 22, the plug 1C cannot be inserted into the socket 1. This prevents the connection between the socket 1 and the plug 1C which are different in supply voltage from each other. Referring to Fig. 19, the comparison socket unit 400 whose shape varies with the supply voltage and complies with the IEC standard has four slit grooves 404 to 407 formed in accordance with the supply voltage. More specifically, the insertion groove 401 having an annular shape (in a plan view as seen in the front-rear direction) is formed in the socket unit 4A. In the plug receiving portion 402 surrounded by the insertion groove 401, a pin insertion hole 4?3 of a plug pin into which a plug (not shown) is inserted is formed. Along the peripheral edge of the plug receiving portion 402, the slits 404 to 407' are formed in a manner such that they are combined with the insertion groove 401 and recessed inward from the insertion groove 401 in the radial direction. In the peripheral edge above the plug receiving portion 402, a slit groove 4? 8 for preventing reverse insertion of the plug is formed. In this regard, the 'cutting grooves 404 to 407 correspond to the supply voltages 6 V, 28 201117497 —, ~r~r^ max 12 V, 24 V and 48 V, and are formed at the reference position of the self-existing incision groove 408 (0). .) 120°, 150°, 210 clockwise. And 240. In position. The different types of plugs include different identification ribs disposed in correspondence with the incision grooves 404 to 407. One of the identification ribs is inserted into a corresponding one of the slits 404 to 407, thereby ensuring that the plug matching the supply voltage is inserted into the outlet unit 400. However, in the socket unit 400, each of the slit grooves 404 and 407 is disposed near the pin insertion hole 403. This situation causes the plug receiving portion 4〇2 to suffer from a problem of reduced strength. Further, since the identification rib of each of the plugs is formed on the inner surface of the surrounding wall, it is difficult for the user to visually confirm the position of the identification rib from the front side in the front and rear directions of the plug. To this end, the user needs to confirm the position of the identification rib from the rear side of the plug to align the position of the identification rib of the plug with the position of the corresponding one of the cutout grooves 404 to 407 of the socket unit 4 And then plug the plug into the outlet unit 400. This complicates the task of inserting the plug into the outlet unit 4 (8). However, in the socket cartridge of the present embodiment, the inclined portion 23a is formed in the lower corner of the four corners of the insertion groove 23. Due to this feature, the distance between the inclined portion ^ and the pin insertion hole 25 becomes larger as compared with the configuration of the conventional socket unit_ just described above. Therefore, the configuration minus the configuration of the socket unit 4 〇 0 has a decrease in the strength of the insertion/removal portion 2*. Since the overall shape of the surrounding wall 53 of the plug 1C is dependent on the supply voltage, the adaptor can use the visually correct plug 1C (four) at the mating position of the socket unit 22 at the front side in the front and rear directions of the plug 1C. This makes it possible for the user of 29 201117497 to easily insert the plug 1C into the outlet unit 22. Next, the shape of the socket unit 22 which varies depending on the kind of the power supply circuit (not shown) as the power source will be described with reference to FIGS. 14A and 14B. The power supply circuit is disposed between the DC power supply unit 71 and the outlet 1. And installed, for example, in the distribution board 74. The power supply circuit includes at least two circuits, that is, an extra-low voltage circuit (ELV) and a safety extra-low voltage circuit (SELV). ELV and SELV are specified in IEC60950-1 and IEC60335-1 of the IEC standard, respectively. Electrical device 72 (see Figure 1) has a different internal insulation structure, depending on which of ELV and SELV is used. More specifically, the electric device 72 having the ELV uses a double insulating structure or a reinforced insulating structure, which means that the insulating structure is extremely strict. On the contrary, it is sometimes the case that the electric device 72 having the SELV does not use a double insulating structure or a reinforced insulating structure. Therefore, the insulating structure of the electric device 72 having the SELV is simpler than the insulating structure of the electric device 72 having the ELV.

在具有ELV之電裝置72連接至用於SELV之插座1 的情況下，不出現問題。此是因為具有ELV之電裝置72 的絕緣結構極其嚴格。相反’若具有SELV之電裝置72連 接至用於ELV之插座1，則通常出現的情況為電裝置72 在經供應危險高電壓時會發生故障。此是因為插座主體在 SELV上的電裝置72之絕緣結構為簡化的。因此，需要鑑 別插座1及插頭1C是否與ELV或SELV相容。詳言之， 必需防止具有SELV之電裝置72無意中連接至用於ELV 201117497 之插座1。 鑒於此，如圖14A中所繪示，用於SELV之插座單元 22包含形成於***凹槽23之下側中的延伸凹槽23b。延伸 凹槽23b與***凹槽23組合且經形成以在垂直方向上自插 入凹槽23之下側向上延伸。相反，如圖14B中所繪示， 用於ELV之插座單元22是省略延伸凹槽23b的結構。插 座單元22之此形狀改變無關緊要。因此’使用者有可能鏗 別用於SELV之插座單元22與用於ELV之插座單元22。 儘管用於ELV之插頭1C可***至用於SELV之插座 單元22中，但用於SELV之插頭1C不可***至用於ELV 之插座單元22中。此使得有可能防止具有SELV之電裝置 72無意中連接至用於ELV之插座1。 在形狀隨電力供應電路之種類而變化的插座單元 中，可想到要使用以下組態（第一組態），其中，如圖2〇A 中所繪示，延伸凹槽23b獨立於***凹槽23而形成。此外， 可想到要使用以下組態（第二組態），其中，如圖20B中 所繪示，延伸凹槽23b形成於***凹槽23外部，亦即形成 於插頭接納部分24外部。 然而，第一組態遭受一種插頭接納部分24之強度因 該延伸凹槽23b與插腳***孔25之間的距離的縮短而降低 的問題。儘管第二組態沒有強度降低問題，但其引起插座 單元22之大小歸因於延伸凹槽23b之供應而變大的問題。 在本實施例中，該延伸凹槽23b與該***凹槽23在 其下側中組合。與第一組態相比，此使得有可能增加插腳 31 201117497 ***^ 25與延伸凹槽23b之間的距離。此外，有可能防止 插座單7L 22之大小的任何增加，因為該延伸凹槽別自插 入凹槽23之下部延伸部向上延伸，亦即，因為該延伸凹槽 23^形成於插頭接納部分24中。因此，就本實施例而言， 變得有可能解決在上文陳述之第_組態及第二組態中引起 的問題。 接下來，將參看圖46A至圖46C來描述視供應電流及 供應電壓而變的插頭接納部分24及***凹槽23的形狀。 在圖46A至圖46C中，將用於48 v之供應電壓及SELV 電路的DC插座1用作實例。 存在著需要（例如）6A、12 A及16 A之供應電流的 多個電装置。在本實施例中，藉由形成自前面觀看呈插頭 接納部分24之形狀的凹痕(indentation)來改變該***凹槽 23之形狀，藉此使DC插座丨可視供應電流之種類而得以 辨別。換言之’如圖46A中所繪示的供應電流為6 A之 DC插座1上的插座主體，在12 a及16 A之供應電壓的 DC插座1中設置所述凹痕。 具體言之，在如圖46B中所繪示的供應電流為I〗A 之DC插座1中，三角形形狀之第二延伸凹槽23c，藉由在 左右方向Y上自傾斜凹槽23c在内部延伸而設置於傾斜凹 槽23c之上部部分處。類似地，構成三角形形狀之第二延 伸凹槽23c，的兩條邊的凹痕180設置於插頭接納部分24 之對應於第二延伸凹槽23c，的部分處。此外，在如圖46C 中所繪示的供應電流為16A之DC插座1中，第二延伸凹 32 201117497 槽23c'及凹痕180設置於兩個***凹槽23c中之每一者的 上部部分處。同時，在傾斜凹槽23c未設置於***凹槽23 中的情況下，第二延伸凹槽23c，及凹痕18〇中之每一者可 經形成以具有自前面觀看為實質四邊形之形狀。 根據供應電壓、供應電流或電力供應電路之種類來改 、支插座單元22之***凹槽23的形狀的各種實例描述於由 本申請案之申請人申請的PCT申請案第 ——---號中，所述PCT申請案之内容以引用方 式併入本文中。 接下來，將參看圖15A至圖15G來描述插座1之配 置的變化。 由於本實施例之插座1經設定為具有單模組尺寸，因 此有可能將同種類的插座1獨立地或與日本工業標準中指 定之具有單模組尺寸或兩模組尺寸之其他佈線裝置組合地 附接至固定框架2。換言之，插座1及佈線裝置可附接至 共同固定框架2。三模組尺寸之開口 3a形成於圖15A至圖 15G.中所繪示之板3中之每一者中。 如圖15A中所繪示，同種類的插座1可多個地附接至 固定框架2 (參見圖3)。如圖15B中所繪示，形狀隨供應 電壓變化的插座1及形狀隨電力供應電路之種類而變化的 插座1可組合地附接至固定框架2。如圖15C中所繪示， 插座1可與用於同轴電纜之插座5及用於電話線之模組化 插座6相組合而安裝。如圖15d中所繪示，插座1可與用 於LAN之模組化插座7及用於電話線之模組化插座6相 33 201117497 組合而安裝。 如圖15E令所繪示，插座1可與交流電插座4組合而 安裝。如圖15F中所繪示’插座1可與開關8組合而安裝。 如圖15G中所繪示，插座丨及交流電插座如可設置於雙 開口型之SI定框架2巾。插座丨植置的變化不限於前述 實例（圖15A至圖15G中所繪示）。上述變化之實例可以 組合方式來具體化。 本實施例之插座1能夠提供以下有利的效應。 (1) 插座單元22之***凹槽23經組態以具有大體矩 形形狀°因此，與具有環狀形狀之插人凹槽相比，有可能 限制插頭1C之包圍壁53***至***凹槽23中的方向。 此使得使用者能夠易於斷定插頭1(=：***至插座單元Μ中 的所要插人方向’藉此而改良使用之㈣性。因此，使用 者可易於將插頭1C***至插座丨中，同時避免反向***。 另外，插腳***孔25沿插頭接納部分24之上部及外 部周邊邊緣而形成於插頭接納部分24之中心C1上方。此 使得有可能在無需在***凹槽23或包圍壁53中另外形成 防反向***結構的情況下防止插頭1C反向***至插座！ 中。因此，與在插座中另外形成防反向***結構的情況相 比’有可能防止插座1之大小的增加。 (2) 插座主體1〇設有電線***孔u，電線L***至 電線***孔11中以自外部供應DC電力。在插座主體ι〇 之内部空間内，提供多個鎖定彈簧1E，用於將***且穿過 電線***孔11之電線L壓在端子1D上。由於此特徵，可 34 201117497 使用各鎖疋彈簧1E之彈性以藉由端子ι〇及鎖定彈菁 而將電線L夾住。此使得有可能易於執行電線[與ι〇 之連接。 (3) 插聊***孔25之下端部分25a在垂直方向上位 於中〜C1上方。此使得有可能在使用者試圖將插頭丨匸反 向***至插座1中時防止插頭插腳52***至插腳***孔 25中°因此’有可能更可靠地防止發生反向***。 (4) 傾斜部分23a形成於***凹槽23中。包圍壁53 亦具備與***凹槽23之形狀一致的傾斜部分。由於包圍壁 53之形狀及***凹槽23之形狀可隨供應電壓而變化，因 此有可此防止將插頭1C錯誤地***至供應電壓不同於插 頭1C之供應電壓的插座丨中。 此外，使用者可藉由在前後方向上自前側用視覺確認 包圍壁53之形狀來斷定插頭ic相對於插座丨之***方 向。此使得使用者能夠易於將插頭1C***至插座1中。 (5) 傾斜部分23a形成於***凹槽23之下側中（亦 即，插頭接納部分24之下側24c附近）。與傾斜部分形成 於***凹槽23之上侧中（亦即，插頭接納部分24之參考 側24b附近）的組態相比，此使得有可能增加傾斜部分23a 與插頭***孔25之間的距離。因此，變得有可能增加插頭 接納部分24之強度，且因此可防止在***及拉出插頭lc 時原本會發生的對插頭接納部分24之損害。 (6) 插頭接納部分24具有位置對應於***凹槽23之 傾斜部分23a且形狀與***凹槽23之傾斜部分23a—致的 35 201117497 傾斜侧。此使得有可能防止***凹槽23之寬度變窄。 在插頭接納部分24不具有位置對應於插二凹 傾斜部分23a的傾斜側的假設情況中，僅***凹槽& 周邊邊緣形成為傾斜雜。因此，細接納部分2 = 邊邊緣與傾斜部分咖中之***凹槽η之間的寬度變^ 於除了傾斜部分仏外之區中的寬度。在本實施例中，^ 頭接納部分24之傾斜側與***凹槽23之傾斜部分23& 對應關係來形成。此使得有可能解決***凹槽23之 纖 窄的問題。 胃 又變 ⑺***凹槽23之傾斜部分23a形成為與插頭接納 部分24之傾斜側一致的傾斜形狀。因此’傾斜形狀為簡單 的，且可藉由僅切掉***凹槽23及插頭接納部分24丄四 個角中的一些來實現。由於此特徵，有可能以較簡單方式 提供能夠防止插頭1C錯誤地***至供應電壓不同於插頭 1C之供應電壓的插座丨中的結構。此使得有可能易於製造 插座1。 (8) 該延伸凹槽23b經組態以自該***凹槽23延伸。 與該延伸凹槽23b獨立於該***凹槽23而形成的情況相 比’此使得有可能防止插座單元22之大小增加及插頭接納 部分24之強度降低。 (9) 該延伸凹槽23b形成於該***凹槽23之下側中。 與該延伸凹槽形成於插腳***孔25與該***凹槽23之間 的情況相比’此使得有可能增加插頭接納部分24之強度。 因此’有可能防止在***及拉出插頭1C時原本會發生的 36 201117497 對插頭接納部分24之損宝。 纳4 2: 之正面22&在前後方向上與插頭接 4 似 齊平。插頭1C之插頭插腳52在前 後方向上柏微向前突出而超過該包圍壁53。此等組態確保 了 .在使用者試®將插頭⑴反向插人至插座單元22中、 時，在該包圍壁53的相當多部分***至***凹槽23中之 前，插頭插腳52與插頭接納部分24接觸。此使得使用者 能夠清楚地辨識出插頭1〇至插座單元22中之反向***。 在插頭ic反向***至插座單元22中時，不再有可能 將插頭1C保持附接至插座單元22。此消除使插頭1C保 持反向而***至插座單元22中的可能性。 、一（11)插座體1A經形成為遵照日本工業標準且落在多 達二個模組巾之-者的尺寸内，所述三個模組可並肩附接 至大正方形轂型可互換佈線裝置之固定框架2。由於此特 徵’有可能將插座體1A附接至其他等同地標準化之佈線 裝置的固定框架2。因此，無需另外製造專用於插座體1A 之固疋框架，此有助於使固定框架標準化。此使得有可能 將插座1與其他佈線裝置一起附接至固定框架2，所述其 他佈線裝置經形成為落在單模組尺寸或兩模組尺寸内的大 小’此增強插座1之使用上的簡易性。 第一實施例之經修改實例 本實施例之插座1不限於上述内容，而是可如下修 改。以下經修改實例並非僅適用於第一實施例，而是可以 彼此組合之方式來具體化。In the case where the electric device 72 having the ELV is connected to the socket 1 for the SELV, no problem occurs. This is because the insulation structure of the electric device 72 having the ELV is extremely strict. On the contrary, if the electric device 72 having the SELV is connected to the socket 1 for the ELV, it is usually the case that the electric device 72 malfunctions when a dangerous high voltage is supplied. This is because the insulation structure of the electrical device 72 on the SELV of the socket body is simplified. Therefore, it is necessary to discriminate whether the socket 1 and the plug 1C are compatible with ELV or SELV. In particular, it is necessary to prevent the electrical device 72 with SELV from being inadvertently connected to the socket 1 for ELV 201117497. In view of this, as illustrated in Fig. 14A, the socket unit 22 for the SELV includes the extending groove 23b formed in the lower side of the insertion groove 23. The extending groove 23b is combined with the insertion groove 23 and formed to extend upward in the vertical direction from the lower side of the insertion groove 23. In contrast, as illustrated in FIG. 14B, the socket unit 22 for the ELV is a structure in which the extending groove 23b is omitted. This shape change of the socket unit 22 does not matter. Therefore, it is possible for the user to discriminate between the socket unit 22 for the SELV and the socket unit 22 for the ELV. Although the plug 1C for the ELV can be inserted into the socket unit 22 for the SELV, the plug 1C for the SELV cannot be inserted into the socket unit 22 for the ELV. This makes it possible to prevent the electric device 72 having the SELV from being inadvertently connected to the socket 1 for the ELV. In the socket unit whose shape varies depending on the kind of the power supply circuit, it is conceivable to use the following configuration (first configuration), wherein, as illustrated in FIG. 2A, the extension groove 23b is independent of the insertion groove Formed by 23. Further, it is conceivable to use the following configuration (second configuration) in which the extending groove 23b is formed outside the insertion groove 23, that is, outside the plug receiving portion 24, as illustrated in Fig. 20B. However, the first configuration suffers from a problem that the strength of the plug receiving portion 24 is lowered by the shortening of the distance between the extending groove 23b and the pin insertion hole 25. Although the second configuration has no strength reduction problem, it causes a problem that the size of the socket unit 22 becomes large due to the supply of the extension groove 23b. In the present embodiment, the extending groove 23b is combined with the insertion groove 23 in the lower side thereof. This makes it possible to increase the distance between the pin 31 201117497 insertion 25 and the extension groove 23b compared to the first configuration. Furthermore, it is possible to prevent any increase in the size of the socket unit 7L 22 because the extension groove extends upward from the lower extension portion of the insertion groove 23, that is, because the extension groove 23 is formed in the plug receiving portion 24. . Therefore, with the present embodiment, it becomes possible to solve the problems caused in the first configuration and the second configuration stated above. Next, the shape of the plug receiving portion 24 and the insertion groove 23 depending on the supply current and the supply voltage will be described with reference to Figs. 46A to 46C. In FIGS. 46A to 46C, a DC outlet 1 for a supply voltage of 48 V and a SELV circuit is used as an example. There are a plurality of electrical devices that require supply currents of, for example, 6A, 12A, and 16A. In the present embodiment, the shape of the insertion groove 23 is changed by forming an indentation in a shape in which the plug receiving portion 24 is viewed from the front, whereby the DC socket is discriminated by the kind of visible supply current. In other words, as shown in Fig. 46A, the socket main body on the DC socket 1 having a supply current of 6 A is provided in the DC socket 1 of the supply voltage of 12 a and 16 A. Specifically, in the DC socket 1 in which the supply current is I 〗 A as shown in FIG. 46B, the second extending groove 23c of a triangular shape is internally extended from the inclined groove 23c in the left-right direction Y. It is disposed at an upper portion of the inclined groove 23c. Similarly, the dimples 180 of the two sides constituting the second extending groove 23c of the triangular shape are provided at portions of the plug receiving portion 24 corresponding to the second extending grooves 23c. Further, in the DC socket 1 in which the supply current is 16A as illustrated in FIG. 46C, the second extension recess 32 201117497 groove 23c' and the dimple 180 are provided in the upper portion of each of the two insertion grooves 23c. At the office. Meanwhile, in the case where the inclined groove 23c is not provided in the insertion groove 23, each of the second extending groove 23c, and the indentation 18〇 may be formed to have a shape which is a substantially quadrangular shape as viewed from the front. Various examples of the shape of the insertion groove 23 of the socket unit 22 according to the supply voltage, the supply current, or the type of the power supply circuit are described in the PCT Application No.---Application filed by the applicant of the present application. The content of the PCT application is incorporated herein by reference. Next, a change in the configuration of the socket 1 will be described with reference to Figs. 15A to 15G. Since the socket 1 of the present embodiment is set to have a single module size, it is possible to combine the same type of socket 1 independently or with other wiring devices having a single module size or two module sizes specified in Japanese Industrial Standards. Attached to the fixed frame 2. In other words, the socket 1 and the wiring device can be attached to the common fixed frame 2. The three module size openings 3a are formed in each of the boards 3 shown in Figs. 15A to 15G. As shown in Fig. 15A, the same kind of socket 1 can be attached to the fixed frame 2 in multiples (see Fig. 3). As shown in Fig. 15B, the socket 1 whose shape changes with the supply voltage and the socket 1 whose shape varies depending on the kind of the power supply circuit can be attached to the fixed frame 2 in combination. As shown in Fig. 15C, the socket 1 can be mounted in combination with the socket 5 for the coaxial cable and the modular socket 6 for the telephone line. As shown in Figure 15d, the socket 1 can be mounted in combination with a modular jack 7 for a LAN and a modular jack 6 for a telephone line 33 201117497. As shown in Fig. 15E, the socket 1 can be assembled in combination with the AC outlet 4. As shown in Fig. 15F, the socket 1 can be mounted in combination with the switch 8. As shown in Fig. 15G, the socket 丨 and the AC power socket can be disposed in a double-open type SI fixed frame 2 towel. The variation of the socket stacking is not limited to the foregoing example (illustrated in Figs. 15A to 15G). Examples of the above changes can be embodied in combination. The socket 1 of the present embodiment can provide the following advantageous effects. (1) The insertion groove 23 of the socket unit 22 is configured to have a substantially rectangular shape. Therefore, it is possible to restrict the insertion wall 53 of the plug 1C from being inserted into the insertion groove 23 as compared with the insertion groove having the annular shape. In the direction. This makes it easy for the user to judge the plug 1 (=: the desired insertion direction into the socket unit ' ' thereby improving the use of the fourth. Therefore, the user can easily insert the plug 1C into the socket , while avoiding In addition, the pin insertion hole 25 is formed above the center C1 of the plug receiving portion 24 along the upper portion and the outer peripheral edge of the plug receiving portion 24. This makes it possible to additionally not need to be in the insertion groove 23 or the surrounding wall 53. In the case where the anti-reverse insertion structure is formed, the plug 1C is prevented from being reversely inserted into the socket! Therefore, it is possible to prevent an increase in the size of the socket 1 as compared with the case where an anti-reverse insertion structure is additionally formed in the socket. The socket body 1 is provided with a wire insertion hole u, and the wire L is inserted into the wire insertion hole 11 to supply DC power from the outside. In the internal space of the socket body ι, a plurality of lock springs 1E are provided for insertion and The electric wire L passing through the electric wire insertion hole 11 is pressed against the terminal 1D. Due to this feature, the elasticity of each lock spring 1E can be used for the 2011 11497 to connect the electric wire L by the terminal 〇 and the locking elastic This makes it possible to easily perform the connection of the wire [with ι〇. (3) The lower end portion 25a of the insertion hole 25 is located vertically in the middle ~ C1. This makes it possible for the user to attempt to plug the 丨匸The reverse insertion into the socket 1 prevents the plug pin 52 from being inserted into the pin insertion hole 25. Therefore, it is possible to more reliably prevent the reverse insertion from occurring. (4) The inclined portion 23a is formed in the insertion groove 23. The surrounding wall 53 There is also an inclined portion that conforms to the shape of the insertion groove 23. Since the shape of the surrounding wall 53 and the shape of the insertion groove 23 can vary depending on the supply voltage, it is possible to prevent the plug 1C from being erroneously inserted to the supply voltage differently. In addition, the user can determine the insertion direction of the plug ic with respect to the socket 藉 by visually confirming the shape of the surrounding wall 53 from the front side in the front-rear direction. This allows the user to easily The plug 1C is inserted into the socket 1. (5) The inclined portion 23a is formed in the lower side of the insertion groove 23 (i.e., near the lower side 24c of the plug receiving portion 24). This makes it possible to increase the distance between the inclined portion 23a and the plug insertion hole 25 as compared with the configuration of the upper side of the recess 23 (i.e., near the reference side 24b of the plug receiving portion 24). It is possible to increase the strength of the plug receiving portion 24, and thus damage to the plug receiving portion 24 which would otherwise occur when the plug lc is inserted and pulled out. (6) The plug receiving portion 24 has a position corresponding to the insertion groove 23. The inclined portion 23a is shaped to be inclined to the side of the inclined portion 23a of the insertion groove 23, which is 35 201117497. This makes it possible to prevent the width of the insertion groove 23 from being narrowed. The plug receiving portion 24 does not have a position corresponding to the insertion concave inclination In the hypothetical case of the inclined side of the portion 23a, only the insertion groove & peripheral edge is formed as a tilting impurity. Therefore, the width between the thin receiving portion 2 = the edge of the edge and the insertion groove n in the inclined portion is changed to the width in the region other than the inclined portion. In the present embodiment, the inclined side of the head receiving portion 24 is formed in correspondence with the inclined portion 23& of the insertion groove 23. This makes it possible to solve the problem of the narrowness of the insertion groove 23. The stomach is changed again. (7) The inclined portion 23a of the insertion groove 23 is formed in an inclined shape conforming to the inclined side of the plug receiving portion 24. Therefore, the 'tilted shape is simple and can be achieved by cutting only some of the four corners of the insertion groove 23 and the plug receiving portion 24. Due to this feature, it is possible to provide a structure in a relatively simple manner capable of preventing the plug 1C from being erroneously inserted into the socket of the supply voltage different from the supply voltage of the plug 1C. This makes it possible to easily manufacture the socket 1. (8) The extension groove 23b is configured to extend from the insertion groove 23. This is made possible in comparison with the case where the extending groove 23b is formed independently of the insertion groove 23, which makes it possible to prevent the size of the socket unit 22 from increasing and the strength of the plug receiving portion 24 from being lowered. (9) The extension groove 23b is formed in the lower side of the insertion groove 23. This makes it possible to increase the strength of the plug receiving portion 24 as compared with the case where the extending groove is formed between the pin insertion hole 25 and the insertion groove 23. Therefore, it is possible to prevent the loss of the plug receiving portion 24 which would otherwise occur when the plug 1C was inserted and pulled out. Nano 4 2: The front 22& is flush with the plug 4 in the front and rear direction. The plug pin 52 of the plug 1C protrudes forward beyond the surrounding wall 53 in the front-rear direction. These configurations ensure that when the user tries to insert the plug (1) back into the socket unit 22, the plug pin 52 and the plug are inserted before a considerable portion of the surrounding wall 53 is inserted into the insertion recess 23. The receiving portion 24 is in contact. This allows the user to clearly recognize the reverse insertion of the plug 1 to the socket unit 22. When the plug ic is reversely inserted into the socket unit 22, it is no longer possible to keep the plug 1C attached to the socket unit 22. This eliminates the possibility that the plug 1C is held in the reverse direction and inserted into the outlet unit 22. The one (11) socket body 1A is formed to conform to Japanese industrial standards and falls within the size of up to two module towels, which can be attached side by side to the large square hub type interchangeable wiring device Fixed frame 2. Due to this feature, it is possible to attach the socket body 1A to the fixing frame 2 of other equally standardized wiring devices. Therefore, it is not necessary to separately manufacture a fixing frame dedicated to the socket body 1A, which contributes to standardization of the fixing frame. This makes it possible to attach the socket 1 to the fixed frame 2 together with other wiring devices which are formed to fall within the size of the single module or the size of the two modules 'the use of the reinforcing socket 1 Simplicity. Modified Example of First Embodiment The socket 1 of the present embodiment is not limited to the above, but can be modified as follows. The following modified examples are not only applicable to the first embodiment, but may be embodied in a combination with each other.

37 J 20111749737 J 201117497

儘管根據第一實施例該延伸凹槽23b形成於插頭接納 部分24中，但該延伸凹槽23b之形成位置不限於此。舉例 而言，如圖16A中所繪示，該延伸凹槽23b可經形成以在 垂直方向上自該***凹槽23之下側向下延伸。如圖16B 中所繪示，該延伸凹槽23b可經形成以在垂直方向上自插 入凹槽23之上侧向上延伸。 如圖16C中所繪示，該延伸凹槽23b可經形成以在水 平方向上自***凹槽23之左側向左延伸。如圖16D中所 繪示，該延伸凹槽23b可經形成以在水平方向上自該*** 凹槽23之右側向右延伸。 儘管根據第一實施例插座1之供應電壓藉由在***凹 槽2 3之下側的一個或兩個角中形成傾斜部分2 3 a來進行識 別，但用於識別插座1之供應電壓的組態不限於此。若該 ***凹槽23之形狀改變以准許***具有相容供應電壓之 插頭的包圍壁，這是完全可行的。 舉例而言，如圖17A中所繪示，可藉由切掉***凹槽 23之四個角中的一者來形成階梯(step)狀凹座23c。如圖 17B中所繪示’可藉由部分切掉該***凹槽幻來形成在侧 面向外突出的犬起23d。在此種情況下，插頭lc之包圍壁 53經形成以具有與***凹槽23之形狀相同的形狀乂在如 在前後方向上自前侧所見之平面圖中代替切掉該***凹 槽23之四個角中之-者以形成凹座23e，如圖nc及圖 17D中所示’可在該***凹槽23之下側的右角或左角中形 成該延伸凹槽23b。 38 201117497 儘管根據第一實施例該傾斜部分23a及該延伸凹槽 23b形成於***凹槽23之下侧中，但該延伸凹槽23b之位 置不限於此。舉例而言，傾斜部分23a及延伸凹槽23b可 形成於該***凹槽.23之上側中。 儘管根據第一實施例插腳***孔25之下端部分25a 配置於插頭接納部分24之中心Cl上方，但下端部分25a 之位置不限於此。在使用者試圖將插頭1C反向***至插 座1中時防止插頭插腳52***至插腳***孔25中為完全 可行的。此意謂插腳***孔25之下端部分25a可實質上形 成於與中心C1相同之垂直位置中。 儘管根據第一實施例該***凹槽23經形成為長邊在 水平方向上延伸且短邊在垂直方向上延伸的大體矩形形 狀，但該***凹槽23之形狀不限於此。該***凹槽23可 形成為具有實質上相等之水平邊及垂直邊的正方形形狀。 儘官根據第一實施例在插頭接納部分24中形成兩個 插腳***孔25，但如圖18中所繪示，可在插頭接納部分 中另外形成作為另一插腳***孔的一個接地插腳*** 孔26。正如插腳***孔25，接地插腳***孔％具有圓形 形狀（在如在插頭之***方向上所見之平面圖中）。接地插 頭插腳（未圖示）***至接地插腳***孔26中。接地插腳 ***孔26可在垂直方向上形成於插腳***孔25之下側處 且在中心C1下方。 此外，接地插腳***孔26可形成於插腳***孔25之 間的水平中間位置中且在與中心C1相同之水平位置中。 39 201117497 在圖18中，接地插腳***孔26之面向插頭接納部分24 之參考側24b的上端部分26a配置於插頭接納部分24之下 侧24c與直線L1之間。在具有此接地插腳***孔％之插 座1中，與具有與接地插腳***孔26相同之.面積且具有長 邊垂直延伸之矩形形狀的接地插腳***孔（未圖示j、形^ 於插頭接納部分302中（如圖50A中所說明）的情況相^匕， 有可能確保各***孔之間的最短距離。 亦即，經修改實例之插座1使得插腳***孔25與接 地插腳***孔26之間的距離易於確保。在具有插頭插腳 52及接地插頭插腳之插頭（未圖示）中，有可能增加插頭 插腳52與接地插頭插腳之間的距離。 儘管根據第一實施例插座1經形成以具有落在單模組 尺寸内的大小，但插座1之大小不限於此。舉例而言，插 座1可形成為洛在一個半模組尺寸、兩模組尺寸或三模組 尺寸内的大小。 第二實施例 現將參看圖21至圖23來描述根據本發明之第二實施 例的DC插座，所述DC插座具體化為嵌入於住宅之牆壁 部分中的DC插座。本實施例與第一實施例之不同之處在 於提供端子2D來代替端子1D、鎖定彈簧ιέ及釋放按鈕 1F。 此外’在插座主體10之某些結構方面且在端子2D與 電線之連接結構方面’本實施例不同於第一實施例。現將 著重於與第一實施例之不同點來對第二實施例進行描述。 201117497 相同組件將由彳目似元件符號表示且將省略對其之描述。 、如圖21A至圖21D中所繪示，插座！包含大體矩形 y狀之插座體1A、插腳接納件1B (參見圖⑷及端 八兩者白各納於插座體1A内。插腳接納件iB容 納於由插座主體1G及插座體1A之蓋2G界定之内部空間 内，且經由端子2D連接至電線Wdc。端子2D之某些部 分配置於插座體1A之水平相對末端附近（參見圖2ι〇·)。 參看圖22 ’插腳接納件1B及端子2D容納於插座體Although the extending groove 23b is formed in the plug receiving portion 24 according to the first embodiment, the position at which the extending groove 23b is formed is not limited thereto. For example, as illustrated in Fig. 16A, the extending groove 23b may be formed to extend downward from the lower side of the insertion groove 23 in the vertical direction. As shown in Fig. 16B, the extending groove 23b may be formed to extend upward from the upper side of the insertion groove 23 in the vertical direction. As shown in Fig. 16C, the extending groove 23b may be formed to extend leftward from the left side of the insertion groove 23 in the horizontal direction. As shown in Fig. 16D, the extending groove 23b may be formed to extend rightward from the right side of the insertion groove 23 in the horizontal direction. Although the supply voltage of the socket 1 according to the first embodiment is identified by forming the inclined portion 23 a in one or both corners of the lower side of the insertion groove 23, the group for identifying the supply voltage of the socket 1 is identified. The state is not limited to this. This is entirely feasible if the shape of the insertion groove 23 is changed to permit insertion of a surrounding wall of a plug having a compatible supply voltage. For example, as illustrated in Fig. 17A, a stepped recess 23c can be formed by cutting away one of the four corners of the insertion groove 23. As shown in Fig. 17B, the dog 23d protruding outwardly on the side may be formed by partially cutting off the insertion groove. In this case, the surrounding wall 53 of the plug lc is formed to have the same shape as that of the insertion groove 23, instead of cutting out the insertion groove 23 in a plan view as seen from the front side in the front-rear direction. The corners are formed to form the recess 23e, which can be formed in the right or left corner of the lower side of the insertion groove 23 as shown in FIGS. nc and 17D. 38 201117497 Although the inclined portion 23a and the extending groove 23b are formed in the lower side of the insertion groove 23 according to the first embodiment, the position of the extending groove 23b is not limited thereto. For example, the inclined portion 23a and the extending groove 23b may be formed in the upper side of the insertion groove .23. Although the lower end portion 25a of the pin insertion hole 25 is disposed above the center C1 of the plug receiving portion 24 according to the first embodiment, the position of the lower end portion 25a is not limited thereto. It is entirely practicable to prevent the plug pin 52 from being inserted into the pin insertion hole 25 when the user attempts to insert the plug 1C in the socket 1 in the reverse direction. This means that the lower end portion 25a of the pin insertion hole 25 can be formed substantially in the same vertical position as the center C1. Although the insertion groove 23 is formed in a substantially rectangular shape in which the long side extends in the horizontal direction and the short side extends in the vertical direction according to the first embodiment, the shape of the insertion groove 23 is not limited thereto. The insertion groove 23 can be formed in a square shape having substantially equal horizontal and vertical sides. The two pin insertion holes 25 are formed in the plug receiving portion 24 according to the first embodiment, but as shown in FIG. 18, a ground pin insertion hole as another pin insertion hole may be additionally formed in the plug receiving portion. 26. Just as the pin insertion hole 25, the ground pin insertion hole % has a circular shape (in a plan view as seen in the insertion direction of the plug). A grounding plug pin (not shown) is inserted into the ground pin insertion hole 26. The ground pin insertion hole 26 is formed in the vertical direction at the lower side of the pin insertion hole 25 and below the center C1. Further, the ground pin insertion hole 26 may be formed in a horizontal intermediate position between the pin insertion holes 25 and in the same horizontal position as the center C1. 39 201117497 In Fig. 18, the upper end portion 26a of the ground pin insertion hole 26 facing the reference side 24b of the plug receiving portion 24 is disposed between the lower side 24c of the plug receiving portion 24 and the straight line L1. In the socket 1 having the grounding pin insertion hole %, a grounding pin insertion hole having a rectangular shape which has the same area as the grounding pin insertion hole 26 and has a long side extending vertically (not shown, j is formed in the plug receiving) In the case of the portion 302 (as illustrated in Fig. 50A), it is possible to ensure the shortest distance between the insertion holes. That is, the socket 1 of the modified example allows the pin insertion hole 25 and the ground pin insertion hole 26 to be The distance between the two is easily ensured. In the plug (not shown) having the plug pin 52 and the ground plug pin, it is possible to increase the distance between the plug pin 52 and the ground plug pin. Although the socket 1 is formed according to the first embodiment There is a size falling within the size of the single module, but the size of the socket 1 is not limited thereto. For example, the socket 1 can be formed in a size of one half module size, two module sizes or three module sizes. SECOND EMBODIMENT A DC socket according to a second embodiment of the present invention, which is embodied as a DC socket embedded in a wall portion of a house, will now be described with reference to Figs. 21 to 23. The first embodiment is different in that a terminal 2D is provided instead of the terminal 1D, the lock spring ι, and the release button 1F. Further, 'in some structural aspects of the socket main body 10 and in the connection structure of the terminal 2D and the electric wire', this embodiment Different from the first embodiment, the second embodiment will now be described focusing on differences from the first embodiment. 201117497 The same components will be denoted by the same reference numerals and their description will be omitted. As shown in FIG. 21D, the socket! includes a socket body 1A having a substantially rectangular shape and a pin receiving member 1B (see FIG. 4 and the ends 8 are respectively disposed in the socket body 1A. The pin receiving member iB is housed in the socket. The main body 1G and the inner space defined by the cover 2G of the socket body 1A are connected to the electric wire Wdc via the terminal 2D. Some portions of the terminal 2D are disposed near the horizontal opposite ends of the socket body 1A (see Fig. 2). 22 'Pin receiver 1B and terminal 2D are housed in the socket body

A之内部空間内。更具體言之，插腳接納件1B及端子2D 之後部部分贿得插腳接納件1B_至端子犯的狀態而 置放於插座主體1〇内。 端子2D巾之每-者包含在前後方向上向後開放之大 體U型端子體部分8〇及以螺紋方式耦接至端子體部分⑽ ，螺桿部件8卜端子體部分8G包含：插聊擱置部件固持 部分82，其固定有插腳接納件1B中之每一者；及螺桿固 持部分83，其附接有螺桿部件81。螺桿固持部分83'與插 腳擱置部件固持部分82在水平方向上間隔開。 、 在電線Wdc連接至插座體ία時，如圖23A中所繪 =，預先自螺桿固持部分83鬆開螺桿部件81，因此在螺 桿固持部分83與螺桿部件81之頭部81a之間在水平方向 上形成間隙。在此狀態下，電線Wdc中之每一者繞著螺: 部件81之轴81b而捲繞。 〜’、干 ^接下來，如圖23B中所繪示，上緊螺桿部件81，使 得螺桿部件81之頭部8ia可更接近於螺桿固持部分， 41 201117497 藉此使螺桿固持部分83及螺桿部件81之頭部8ia夹住電 線Wdc中之每一者。因此，如圖23C中所繪示，將繞著 螺桿部件81之轴81b而捲繞的電線Wdc中之每一者壓在 端子體部分80上。 在自插座體1A移除電線Wdc時，以相反次序來進行 剛在上文提及之任務。 就此而言，電線Wdc中之每一者包含所謂的絞合的線 導體W1 ’所述絞合的線導體W1藉由將多根細銅絲與用 於遮蓋導體W1之電絕緣蒙皮（electricaUy_insulating cover)部分W2絞合在一起而形成。就電線Wdc之組態 而s，與由比導體W1之細銅絲厚的棒狀銅部件所形成的 單線導體相比，有可能易於彎曲該導體W1。 插頭ic之組態及用於將插頭lc***至插座i中的姓 構與上文參看® 9至圖15在第—實施例中描述的情況才; 同，且因此將省略掉對其之描述。 本實施例之插座1能夠提供以下的有利效應。 ⑴就本實施例而言’插座單元22之插人凹槽23經 組態以具有在其兩個角中形成之傾斜部分❿。因此，盘 如圖柳、圖桃及圖桃中繪_環狀形狀之***凹槽 ⑴或2〇1相比，有可能限制插頭1(：之包圍㈣***至 此使得使用者能㈣於斷定插頭 入至早7L 22中的所要方向，藉此改良使用之簡 易性。因此’使用者可易於肱拯 约於將插碩1C***至插座1中， 同時避免反向***。 42 201117497 另外’插腳***孔25沿插頭接納部分24之外周邊邊 緣的上側形成於插頭接納部分24之中心C1上方。此使得 有可能在無需在***凹槽23或包圍壁53中另外形成防反 向***結構的情況下防止插頭1C反向***至插座丨中。 因此，與在插座中另外形成防反向***結構的情況相比， 有可能防止插座1之大小的增加。 (2) 就本實施例而言’插腳***孔25之下端部分25a 在垂直方向上位於中心Cl上方。此使得有可能在使用者 試圖將插頭ic反向***至插座丨中時防止插頭插腳52插 入至插腳***孔25中。因此，有可能更可靠地防止發生反 向***。 (3) 就本貫施例而言，傾斜部分23a形成於***凹槽 23之四個角中。包圍壁53亦具備與***凹槽乃之形狀一 致的傾斜延伸部。由於包圍壁53之形狀及***凹槽23之 形狀可隨供應電壓而變化，因此有可能防止將插頭1C錯 δ吳***至供應電壓不同於插頭之供應電壓的插座丨中。 此外’使用者可藉由在前後方向上自前側用視覺確認 包圍壁53之形狀來斷定插頭1C相對於插座丨之***方 向。此使得使用者能夠易於將插頭1(：***至插座〗中。 (4) 就本實施例而言，傾斜部分23a形成於***凹槽 23之下側中（亦即’插頭接納部分24之下侧24c附近 與傾斜部分形成於***凹槽23之上延伸部中（亦即，插頭 接納部分24之參考側24b附近）的組態相比，此使得有可 能增加傾斜部分23a與插頭***孔25之間的距離。因此， 43 201117497 變得有可能增加插頭接納部分24之強度，且因此，防止在 =入及拉出插頭1C時原本會發生的對插頭接納部分24之 才貝害。 (5) 就本實施例而言，插頭接納部分24具有位置對 應於***凹槽23之傾斜部分23a且形狀與***/凹槽23之 傾斜部分23a -致的傾斜侧。此使得有可能防止*** 23之寬度變窄。 增 在插頭接納部分24不具有位置對應於***凹槽幻之 傾斜部分23a的傾斜侧的假設情況中，僅***凹槽23之 周邊邊緣形成為傾斜形狀。因此，插頭接納部分24之外 邊邊緣與傾斜部》23a中之***凹槽23之間的寬度變得^ 於除了傾斜部分23a外之區中的寬度。在本實施例中 頭接納部分24之傾斜側與***凹槽23之傾斜部分23& =應關係來形成。此使得有可能解決插人凹槽23之寬度變 乍的問題。 又 (6) 就本實施例而言，***凹槽23之傾斜部分幻 經形成為與插頭接納部分24之傾斜側一致的傾斜 a 形狀為簡單的且可藉域轉插人簡23及= ，納Μ 24之四個角中的—些來實現。由於此特徵 此以較簡單方式提供能騎止_ 1(：錯誤歓至 壓不同於插頭1C之供應電壓的插座i中的 ^^ 有可能易於製造插座卜 此使伸 (7) 就本實施例而言，延伸凹槽231?經組態以 凹槽23延伸。與延伸凹槽23b獨立於***凹槽^ ^形成= 201117497. 情況相比’此使得有可能防止插座單元22之大小增加及插 頭接納部分24之強度減少。 (8) 就本實施例而言’延伸凹槽23b形成於***凹槽 23之下側中。與延伸凹槽形成於插腳***孔25與***凹 槽23之間的情況相比，此使得有可能增加插頭接納部分 24之強度。因此，有可能防止在***及拉出插頭1(：時原 本會發生的對插頭接納部分24之損害。 (9) 就本實施例而言，插座單元22之正面22&在前 後方向上與插頭接納部分24之正面24a齊平。插頭1C之 插頭插腳52在前後方向上稍微向前突出超過該包圍壁 53。此等組態確保，在使用者試圖將插頭1(：反向***至 插座單元22中時，在該包圍壁53相#多部分***至*** 凹槽23中之前，插頭插腳52與插頭接納部分以接觸。 此使得使用者能夠清楚地辨識出插頭lc至插座單元 22中之反向插人。在_ lc反向插人至插座單元22中 時’不再有可能將插頭1C保持附接至插座單& 22。此消 除了使插頭ic保持反向插人至插座單元22中的可能性。 (1〇)就本實施例而言，藉由上緊螺 Wdc中之每—者壓在端子體部丨件81將電線 4, Λ- 刀80上。與端子體部分80 之每-者連接至所述端子體部分的任務0 τ將所述電線中 (11)就本實施例而言，插座體1Α經 工業標準且落在？達三個模組巾 t成為遵‘、，、曰本 考的尺寸内，所述三 45 201117497 個模組可並肩附接至大正方形較型可互換佈線裝置之固定 框架2。由於此特徵’有可能將插座體〗 標準化佈線裝置之固定框架2。 寻 因此，無需另外製造專用於插座體1A之固定框架， 此有助於使框架標準化。此使得有可能將插座1與其 他佈線?置1_接朗定轉2，所述其⑽線裝置經 形成為落在單模蚊寸或兩獅尺寸⑽大小，此增強插 座1之使用的簡易性。 第三實施例 現將參看圖24至圖26來描述根據本發明之第三實施 例的DC插座，所述1)(：插座具體化為嵌入於住宅之牆壁 部分中的DC插座。在插座主體1〇及端子2D之某些結構 方面且在端子2D與電線Wdc之連接結構方面，本實施例 不同於第二實施例。現將著重於與第二實施例之不同點來 對第二貫施例進行描述。相同組件將由相似元件符號表示 且將省略對其之描述。 參看圖24A至圖24D’插座主體1〇之底壁η具備兩 對電線***孔12，電線Wdc (參見圖26)經由所述兩對 電線***孔12***。底壁11之存在電線***孔12的區域 經形成以在前後方向上向後突出超過底壁η之剩餘區域。 如圖25中所繪示，端子2D中之每一者包含端子體部 分80、螺桿部件81及耦接至螺桿部件81之轴81b的扁平 固疋件84。固定件84在水平方向上配置於插腳擱置部件 固持部分82與螺桿固持部分83之間。 46 2011174¾ 在電線Wdc附接至插座體1A時，如圖26A中戶给 示’預先使固定件84相對於螺桿固持部分83成間隔^紛 關係。在此狀態下’將電線Wdc中之每一者經由電線^之 孔12中之每一者而***至螺桿固持部分83與固定件$入 之間的水平間隙中。 Λ 84 接著，如圖26Β中所繪示，上緊螺桿部件81 (向夕 上緊）’使得螺桿部件81之頭部81a可在水平方向上^外 螺桿固持部分83而移動。因此，固定件84朝著螺桿固離 部分83移動’使得電線Wdc中之每一者可由固定件糾持 螺桿固持部分83夾住。 及 在自插座體1A移除電線Wdc時，以相反次序來執^ 剛在上文提及之任務。本實施例能夠提供與第二實施例戶= 提供之效應（1)至（11)類似的有利效應。 第四實施例 現將參看圖27至圖29來描述根據本發明之第四實施 例的DC插座，所述DC插座具體化為嵌入於住宅之牆壁 部分中的DC插座。在插座主體10及端子2D之某些結構 方面且在端子2D與電線Wdc之連接結構方面，本實施例 不同於第二實施例。現將著重於與第二實施例之不同點來 對第四實施例進行描述。相同組件將由相似的元件符號來 表示且將省略對其之描述。 如圖27A至圖27D中所繪示，插座主體1〇之側壁13 具備在前後方向上延伸而經過侧壁13的切開部分14 (參 見圖28)。端子2D部分容納於切開部分14内。插座主體 47 201117497 10之底壁11具備兩個電線插人孔15，電線職經由所述 兩個電線***孔15插人。 如圖28中所繪示，端子2D中之每一者包含有在前後 方向上向後·之方框型端子體部分85及關紋方式輕 接至端子體部分85的螺桿部件81。插腳接納件1B中之每 -者固定至端子體部分85之前端。螺桿部件81耦接至端 子體部分85之上表面。 在電線Wdc附接至插座體ία時，如圖29A中所綠 不，使螺桿部件81之軸81b相對於端子體部分85之下板 85a成間隔開之關係。在此狀態下，將電線Wdc中之每一 者***至螺桿部件81之轴81b與端子體部分85之下板85a 之間的垂直間隙中。接著，如圖29B中所繪示，藉由使螺 桿部件81之軸81b朝著下板85a移動來上緊螺桿部件w， 藉以使電線Wdc中之每一者由螺桿部件μ之轴的垂 直端面及端子體部分85之下表面85a夾住。 在自插座體1A移動電線Wdc時，以相反次序來執行 剛在上文提及之任務。本實施例能夠提供與第二實施例所 提供之效應（1)至（11)類似的有利效應。 第二至第四實施例之經修改實例 第二至第四實施例之插座1不限於上述内容，而是可 如下修改。以下經修改實例並非僅適用於第二至第四實施 例，而是可以彼此組合之方式來具體化。 儘管根據第二至第四實施例該延伸凹槽23b形成於插 入凹槽23之下侧之中心位置中’但該延伸凹槽23b之形成 48 201117497 位置不限於此。舉例而言，該延伸凹槽23 二=下Γ蝴分或左端樹。另外二延= Ϊ # 置不限於插人凹槽23之下部延伸部。或Within the internal space of A. More specifically, the rear end portion of the pin receiving member 1B and the terminal 2D is placed in the socket main body 1 in a state in which the pin receiving member 1B_ is in the state of the terminal. Each of the terminals 2D includes a substantially U-shaped terminal body portion 8〇 that is open rearward in the front-rear direction and is threadedly coupled to the terminal body portion (10). The screw member 8 and the terminal body portion 8G include: A portion 82, which is fixed with each of the pin receiving members 1B, and a screw holding portion 83 to which the screw member 81 is attached. The screw holding portion 83' is spaced apart from the pin resting member holding portion 82 in the horizontal direction. When the electric wire Wdc is connected to the socket body ία, as shown in Fig. 23A, the screw member 81 is loosened in advance from the screw holding portion 83, and thus is horizontally between the screw holding portion 83 and the head portion 81a of the screw member 81. A gap is formed on the upper side. In this state, each of the wires Wdc is wound around the shaft 81b of the screw 81. ~', dry ^ Next, as shown in Fig. 23B, the screw member 81 is tightened so that the head 8ia of the screw member 81 can be closer to the screw holding portion, 41 201117497 thereby the screw holding portion 83 and the screw member The head 8ia of the 81 pinches each of the wires Wdc. Therefore, as shown in Fig. 23C, each of the electric wires Wdc wound around the shaft 81b of the screw member 81 is pressed against the terminal body portion 80. When the wire Wdc is removed from the socket body 1A, the task just mentioned above is performed in reverse order. In this regard, each of the wires Wdc comprises a so-called stranded wire conductor W1 'the stranded wire conductor W1 by electrically insulating a plurality of thin copper wires with an electrically insulating skin for covering the conductor W1 (electricaUy_insulating Cover) Part W2 is twisted together to form. With respect to the configuration of the electric wire Wdc, it is possible to easily bend the conductor W1 as compared with the single-wire conductor formed of a rod-shaped copper member thicker than the thin copper wire of the conductor W1. The configuration of the plug ic and the name for inserting the plug lc into the socket i are the same as those described above in the first embodiment with reference to the paragraphs 9 to 15; and, therefore, the description thereof will be omitted. . The socket 1 of the present embodiment can provide the following advantageous effects. (1) For the present embodiment, the insertion recess 23 of the socket unit 22 is configured to have a sloped portion 形成 formed in its two corners. Therefore, compared with the insertion groove (1) or 2〇1 of the ring shape as shown in Fig. Liu, Fig. and Fig., it is possible to restrict the plug 1 (the surrounding (4) is inserted so that the user can (4) determine the plug. Enter the desired direction in the 7L 22 early, thereby improving the ease of use. Therefore, the user can easily insert the plug 1C into the socket 1 while avoiding reverse insertion. 42 201117497 In addition, the 'pin insertion The hole 25 is formed above the center C1 of the plug receiving portion 24 along the upper side of the outer peripheral edge of the plug receiving portion 24. This makes it possible to eliminate the need to additionally form the anti-reverse insertion structure in the insertion groove 23 or the surrounding wall 53. The plug 1C is prevented from being reversely inserted into the socket 。. Therefore, it is possible to prevent an increase in the size of the socket 1 as compared with the case where an anti-reverse insertion structure is additionally formed in the socket. (2) For the present embodiment, the 'pin' The lower end portion 25a of the insertion hole 25 is located above the center C1 in the vertical direction. This makes it possible to prevent the plug pin 52 from being inserted into the pin insertion hole 25 when the user attempts to insert the plug ic backward into the socket 反向. Therefore, it is possible to prevent the reverse insertion from occurring more reliably. (3) In the present embodiment, the inclined portion 23a is formed in the four corners of the insertion groove 23. The surrounding wall 53 is also provided with the insertion groove. An obliquely extending portion having a uniform shape. Since the shape of the surrounding wall 53 and the shape of the insertion groove 23 may vary depending on the supply voltage, it is possible to prevent the plug 1C from being inserted into the socket whose supply voltage is different from the supply voltage of the plug. Further, the user can judge the insertion direction of the plug 1C with respect to the socket 用 by visually confirming the shape of the surrounding wall 53 from the front side in the front-rear direction. This allows the user to easily insert the plug 1 (: into the socket). (4) In the present embodiment, the inclined portion 23a is formed in the lower side of the insertion groove 23 (that is, the vicinity of the lower side 24c of the plug receiving portion 24 and the inclined portion are formed to extend over the insertion groove 23 This makes it possible to increase the distance between the inclined portion 23a and the plug insertion hole 25 in comparison with the configuration of the portion (i.e., near the reference side 24b of the plug receiving portion 24). Therefore, 43 201117497 becomes available The strength of the plug receiving portion 24 can be increased, and therefore, the damage to the plug receiving portion 24 which would otherwise occur when the plug 1C is inserted and pulled out is prevented. (5) For the present embodiment, the plug receiving portion 24 There is a sloped side having a position corresponding to the inclined portion 23a of the insertion groove 23 and having a shape and an inclined portion 23a of the insertion/groove 23. This makes it possible to prevent the width of the insertion 23 from being narrowed. The addition of the plug receiving portion 24 does not have In the assumption that the position corresponds to the inclined side of the slanted portion 23a of the insertion groove, only the peripheral edge of the insertion groove 23 is formed in an inclined shape. Therefore, the outer edge of the plug receiving portion 24 and the insertion recess in the inclined portion 23a The width between the grooves 23 becomes the width in the region other than the inclined portion 23a. In the present embodiment, the inclined side of the head receiving portion 24 is formed in relation to the inclined portion 23 & = of the insertion groove 23. This makes it possible to solve the problem that the width of the insertion groove 23 is changed. Further, (6) With the present embodiment, the slanted portion of the insertion groove 23 is formed into a slanting a shape conforming to the inclined side of the plug receiving portion 24, and is simple and can be inserted into the simplification 23 and =. Some of the four corners of the Labuan 24 are realized. Due to this feature, it is possible to provide the socket in the socket i which is capable of riding _1 (the error 歓 to the supply voltage different from the plug 1C) in a relatively simple manner. It is possible to easily manufacture the socket. In this case, the extension groove 231 is configured to extend with the groove 23. The extension groove 23b is formed independently of the insertion groove ^ 2011=497. In contrast, this makes it possible to prevent the size of the socket unit 22 from increasing and plugging The strength of the receiving portion 24 is reduced. (8) For the present embodiment, the 'extension groove 23b is formed in the lower side of the insertion groove 23. The extension groove is formed between the pin insertion hole 25 and the insertion groove 23. In contrast, this makes it possible to increase the strength of the plug receiving portion 24. Therefore, it is possible to prevent damage to the plug receiving portion 24 which would otherwise occur when the plug 1 is inserted and pulled out. (9) This embodiment In other words, the front surface 22& of the socket unit 22 is flush with the front surface 24a of the plug receiving portion 24 in the front-rear direction. The plug pin 52 of the plug 1C protrudes slightly forward beyond the surrounding wall 53 in the front-rear direction. In the user's attempt to insert 1 (: When inserted in the socket unit 22 in the reverse direction, the plug pin 52 comes into contact with the plug receiving portion before the portion of the surrounding wall 53 phase is inserted into the insertion groove 23. This allows the user to clearly recognize The plug lc is inserted in the reverse direction in the socket unit 22. When the _lc is reversely inserted into the socket unit 22, it is no longer possible to keep the plug 1C attached to the socket single & 22. This eliminates the plug ic The possibility of reverse insertion into the socket unit 22 is maintained. (1) In the present embodiment, the wire 4 is pressed by the terminal body member 81 by the tightening screw Wdc, respectively - On the knife 80, the task 0 τ connected to the terminal body portion with each of the terminal body portions 80 will be in the electric wire (11). For the present embodiment, the socket body 1 passes the industry standard and falls in the third The module towel t is in the size of the test, and the three 45 201117497 modules can be attached side by side to the fixed frame 2 of the large square type interchangeable wiring device. Since this feature is possible The socket body is standardized to the fixed frame of the wiring device 2. Therefore, no additional system is required. A fixing frame dedicated to the socket body 1A is provided, which helps to standardize the frame. This makes it possible to set the socket 1 to other wirings, which are formed to fall on the single Mould mosquito size or two lion size (10) size, the ease of use of the reinforcing socket 1. Third Embodiment A DC socket according to a third embodiment of the present invention will now be described with reference to Figs. 24 to 26, which 1) (The socket is embodied as a DC socket embedded in a wall portion of the house. This embodiment is different from the second embodiment in terms of some structures of the socket body 1 and the terminal 2D and in the connection structure of the terminal 2D and the wire Wdc example. The second embodiment will now be described focusing on differences from the second embodiment. The same components will be denoted by like reference numerals and their description will be omitted. Referring to Figs. 24A to 24D, the bottom wall n of the socket main body 1b is provided with two pairs of electric wire insertion holes 12 through which the electric wires Wdc (see Fig. 26) are inserted. The region of the bottom wall 11 where the electric wire insertion hole 12 exists is formed to protrude rearward beyond the bottom wall n in the front-rear direction. As shown in Fig. 25, each of the terminals 2D includes a terminal body portion 80, a screw member 81, and a flat solid member 84 coupled to the shaft 81b of the screw member 81. The fixing member 84 is disposed between the pin rest portion holding portion 82 and the screw holding portion 83 in the horizontal direction. 46 20111743⁄4 When the electric wire Wdc is attached to the socket body 1A, the fixing member 84 is previously spaced apart from the screw holding portion 83 as shown in Fig. 26A. In this state, each of the electric wires Wdc is inserted into each of the holes 12 of the electric wires to be inserted into the horizontal gap between the screw holding portion 83 and the fixing member. Λ 84 Next, as shown in Fig. 26A, the screw member 81 is tightened (the upper portion is tightened) so that the head portion 81a of the screw member 81 can be moved in the horizontal direction by the outer screw holding portion 83. Therefore, the fixing member 84 is moved toward the screw fixing portion 83 so that each of the wires Wdc can be clamped by the fixing member holding screw holding portion 83. And when the wire Wdc is removed from the socket body 1A, the tasks just mentioned above are performed in reverse order. This embodiment can provide advantageous effects similar to the effects (1) to (11) provided by the second embodiment. Fourth Embodiment A DC socket according to a fourth embodiment of the present invention will now be described with reference to Figs. 27 to 29, which is embodied as a DC socket embedded in a wall portion of a house. This embodiment is different from the second embodiment in terms of some structures of the socket main body 10 and the terminal 2D and in the connection structure of the terminal 2D and the electric wire Wdc. The fourth embodiment will now be described focusing on differences from the second embodiment. The same components will be denoted by like reference numerals and their description will be omitted. As shown in Figs. 27A to 27D, the side wall 13 of the socket main body 1 has a slit portion 14 extending in the front-rear direction and passing through the side wall 13 (see Fig. 28). The terminal 2D portion is housed in the cut portion 14. The bottom wall 11 of the socket main body 47 201117497 10 is provided with two electric wire insertion holes 15 through which the electric wire is inserted. As shown in Fig. 28, each of the terminals 2D includes a frame type terminal body portion 85 which is rearward in the front-rear direction and a screw member 81 which is lightly connected to the terminal body portion 85. Each of the pin receiving members 1B is fixed to the front end of the terminal body portion 85. The screw member 81 is coupled to the upper surface of the terminal body portion 85. When the electric wire Wdc is attached to the socket body ία, as shown by green in Fig. 29A, the shaft 81b of the screw member 81 is spaced apart from the lower plate 85a of the terminal body portion 85. In this state, each of the electric wires Wdc is inserted into the vertical gap between the shaft 81b of the screw member 81 and the lower plate 85a of the terminal body portion 85. Next, as shown in Fig. 29B, the screw member w is tightened by moving the shaft 81b of the screw member 81 toward the lower plate 85a, whereby each of the electric wires Wdc is made up of the vertical end face of the shaft of the screw member μ. And the lower surface 85a of the terminal body portion 85 is sandwiched. When the electric wire Wdc is moved from the socket body 1A, the task just mentioned above is performed in reverse order. This embodiment can provide advantageous effects similar to the effects (1) to (11) provided by the second embodiment. Modified Example of Second to Fourth Embodiments The socket 1 of the second to fourth embodiments is not limited to the above, but may be modified as follows. The following modified examples are not only applicable to the second to fourth embodiments, but may be embodied in combination with each other. Although the extending groove 23b is formed in the center position of the lower side of the insertion groove 23 according to the second to fourth embodiments, the formation of the extending groove 23b is not limited thereto. For example, the extension groove 23 is a lower squat or a left end tree. The other two extensions = Ϊ # are not limited to the extension of the lower portion of the insertion groove 23. or

任中凹槽23b可形成於***凹槽23之四個延伸部中之 -儘s根據第二至第四實施例該延伸凹槽23b形成於插 ，接刀24中’但該延伸凹槽23b之形成位置不限於 此。舉例而言’如圖觀中所繪示，該延伸凹槽23b可經 ^成、自***凹槽23之下側向下延伸❶如圖3〇b中所續· 不，該延伸凹槽23b可經形成以自插人凹槽23之右側向右 延伸該延伸凹槽23b之形成位置不限於圖3〇a及圖30B 中所繪示之位置。或者，該延伸凹槽说可形成於***凹 槽23之其他延伸部中。 儘管根據第二至第四實施例該插座丨之供應電壓是藉 由***凹槽23之傾斜部分23a來識別，但用於識別插座i 之供應電壓的組態不限於此。若***凹槽23之形狀改變以 准許***具有相容的供應電壓之插頭的包圍壁，則這樣是 完全可行的。 舉例而言’如圖30C中所繪示，可藉由切掉該***凹 槽23之四個角中的一者來形成階梯狀凹座23c。如圖3〇D 中所繪示’可藉由部分切掉該***凹槽23來形成在侧面向 外突出的突起23d。在此種情況下，插頭ic之包圍壁53 經形成以具有與***凹槽23相同之形狀（在如在前後方向 上自後側所見之平面圖中）。 49 201117497 儘管根據第二至第四實施例傾斜部分2 3 a形成於*** 凹槽23々之下側中’但其可形成於***凹槽23之上側中。 儘管根據第二至第四實施例插腳***孔25之下端 分25a配置於插頭接納部分24之中心C1上方，但下端; 分25a之位置不限於此。若在使用者試圖將插頭丨匚反向 ***至插座1中時防止插頭插腳52***至插腳***孔^ 中，則這樣是完全可行的。此意謂插腳***孔25之下端部 分25a可實質上形成於與中心ci相同之位置中。 儘管根據第二至第四實施例***凹槽23經形成為長 邊在水平方向上延伸且短邊在垂直方向上延伸的大體矩形 形狀，但***凹槽23之形狀不限於此。***凹槽23可形 成為具有貫質上相等之水平邊及垂直邊的正方形形狀。 儘管根據第二至第四實施例插腳***孔25是由*** 插頭1C之兩個插頭插腳52的兩個***孔形成，但插腳插 入孔25之組態不限於此。如圖31A中所繪示，插腳*** 孔25可包含***插頭1C之兩個電力供應插腳的兩個電力 供應插腳***孔25A及***插頭1C之一個接地插腳的一 個接地插腳***孔25B。如圖31B中所繪示，電力供應插 腳***孔25A及接地插腳***孔25B分別形成為圓形形狀 (在如在前後方向上自前側所見之平面圖中）。The intermediate groove 23b may be formed in the four extensions of the insertion groove 23 - the extension groove 23b is formed in the insertion, in the blade 24 according to the second to fourth embodiments, but the extension groove 23b The formation position is not limited to this. For example, as shown in the figure, the extending groove 23b can be extended downward from the lower side of the insertion groove 23, as shown in FIG. 3B, which extends the groove 23b. The position at which the extending groove 23b can be formed to extend rightward from the right side of the insertion groove 23 is not limited to the position illustrated in Figs. 3a and 30B. Alternatively, the extension groove can be formed in other extensions of the insertion recess 23. Although the supply voltage of the socket 根据 according to the second to fourth embodiments is recognized by the inclined portion 23a of the insertion groove 23, the configuration for identifying the supply voltage of the socket i is not limited thereto. This is entirely feasible if the shape of the insertion groove 23 is changed to permit insertion of the surrounding wall of the plug having a compatible supply voltage. For example, as shown in Fig. 30C, the stepped recess 23c can be formed by cutting out one of the four corners of the insertion recess 23. The projection 23d which protrudes outward in the side surface can be formed by partially cutting off the insertion groove 23 as shown in Fig. 3D. In this case, the surrounding wall 53 of the plug ic is formed to have the same shape as that of the insertion groove 23 (in a plan view as seen from the rear side in the front-rear direction). 49 201117497 Although the inclined portion 2 3 a is formed in the lower side of the insertion groove 23々 according to the second to fourth embodiments, it may be formed in the upper side of the insertion groove 23. Although the lower end portion 25a of the pin insertion hole 25 is disposed above the center C1 of the plug receiving portion 24 according to the second to fourth embodiments, the position of the lower end portion 25a is not limited thereto. This is completely feasible if the plug pin 52 is prevented from being inserted into the pin insertion hole ^ when the user attempts to insert the plug 丨匚 into the socket 1 in the reverse direction. This means that the lower end portion 25a of the pin insertion hole 25 can be formed substantially in the same position as the center ci. Although the insertion groove 23 is formed in a substantially rectangular shape in which the long side extends in the horizontal direction and the short side extends in the vertical direction according to the second to fourth embodiments, the shape of the insertion groove 23 is not limited thereto. The insertion groove 23 can be formed into a square shape having horizontally equal horizontal edges and vertical sides. Although the pin insertion holes 25 are formed by the two insertion holes of the two plug pins 52 inserted into the plug 1C according to the second to fourth embodiments, the configuration of the pin insertion holes 25 is not limited thereto. As shown in Fig. 31A, the pin insertion hole 25 may include two power supply pin insertion holes 25A inserted into the two power supply pins of the plug 1C and one ground pin insertion hole 25B inserted into one of the ground pins of the plug 1C. As shown in Fig. 31B, the power supply pin insertion hole 25A and the ground pin insertion hole 25B are respectively formed in a circular shape (in a plan view as seen from the front side in the front-rear direction).

接地插腳***孔25B在垂直方向上形成於中心C1下 方且在水平方向上形成於插頭接納部分24之中間位置 中。此使得有可能增加電力供應插腳***孔25A與接地插 腳***孔25B之間的距離，且因此增強***至***孔25A 50 201117497 及25B中之插頭插腳的絕緣強度。 儘官根據第二至第四實施例插座丨經形成以具有落在 單模組尺寸内的大小，但插座丨之大小不限於此。舉例而 了 ’插座1可形成為落在—個半模組尺寸、兩模組尺寸或 三模組尺寸内的大小。 儘管根據第二實施例電線Wdc中之每一者是由端子 2D中之每一者及螺桿部件81之頭部81a夾住，但本發明 不限於此。舉例而言，弧形形狀或環形形狀（包含多邊環 形形狀（諸如，矩形環形形狀）及環狀形狀）之金屬墊圈 可耦接至螺桿部件81之軸81b，使得電線Wdc中之每一 者可由端子2D中之每一者及金屬墊圈夾住。 在第三實施例中，同樣有可能將金屬墊圈耦接至螺桿 部件81之軸81b，使得電線Wdc中之每一者可由端子2D 中之每一者及金屬墊圈夾住。在第四實施例中，同樣有可 月b將弧形开>狀或環形形狀（包含多邊環形形狀（諸如，矩 形環形形狀）及環狀形狀）之固定件以螺紋方式耦接至螺 桿部件81之軸81b的末端部分，使得電線Wdc中之每一 者可由端子2D中之每一者及固定件夾住。 第五實施例 接下來，將參看圖32至圖46來描述根據本發明之第 五實施例的DC插座。 在本實施例中’插座1為嵌入於室内物品8〇(參見圖 1)中之嵌入類型。作為室内物品80之實例，廣泛已知有 一種沖洗單元，諸如具有洗臉盆之浴室盥洗台。所述沖洗 51 201117497The ground pin insertion hole 25B is formed in the vertical direction below the center C1 and is formed in the horizontal position in the intermediate position of the plug receiving portion 24. This makes it possible to increase the distance between the power supply pin insertion hole 25A and the ground pin insertion hole 25B, and thus enhance the insulation strength of the plug pins inserted into the insertion holes 25A 50 201117497 and 25B. According to the second to fourth embodiments, the socket is formed to have a size falling within the size of the single module, but the size of the socket 不限 is not limited thereto. For example, the socket 1 can be formed to fall within a half module size, two module sizes, or a three module size. Although each of the electric wires Wdc according to the second embodiment is sandwiched by each of the terminals 2D and the head 81a of the screw member 81, the present invention is not limited thereto. For example, a metal washer of an arc shape or a ring shape (including a polygonal annular shape (such as a rectangular ring shape) and an annular shape) may be coupled to the shaft 81b of the screw member 81 such that each of the wires Wdc may be Each of the terminals 2D and the metal washer are clamped. In the third embodiment, it is also possible to couple the metal washer to the shaft 81b of the screw member 81 so that each of the wires Wdc can be clamped by each of the terminals 2D and the metal washer. In the fourth embodiment, there is also a month in which the fixing member of the arc-shaped or annular shape (including the polygonal annular shape (such as a rectangular annular shape) and the annular shape) is screw-coupled to the screw member. The end portion of the shaft 81b of the 81 is such that each of the wires Wdc can be clamped by each of the terminals 2D and the fixing member. Fifth Embodiment Next, a DC socket according to a fifth embodiment of the present invention will be described with reference to Figs. 32 to 46. In the present embodiment, the socket 1 is of an embedded type embedded in the indoor article 8 (see Fig. 1). As an example of the indoor article 80, a flushing unit such as a bathroom vanity having a washbasin is widely known. The flushing 51 201117497

^ L ^ =備插座卜諸如乾_、f動牙刷 f。未繪示於圖式中）之電農置的插頭K：通常連接J座 首先將參看圖32至圖34來描述插 於將插座！附接至固定框架2的結構。及用 如圖32A中所繪示，插座 插座體1A、容納於插座體1A 圖39)等等。 1包含大體矩形實心形狀之 内之插腳接納件1B (參見 插座體1A包含：大體矩形實心形狀之插座主體1〇(參 見圖35)二其藉由樹脂材料射出成型以容納插腳接納件 1B ’ ^及蓋20 ’其以使得插座主體1〇可在前後方向上喪 入於盖2G之後側中的形狀而藉由樹脂材料來射出成型。 插腳接納件1B連接至自DC供應線Wdc延伸之電 線’ DC供應線職配置於建築物牆壁部分之牆面的背面 側處。此確保DC電力自Dc電力供應單元71供應給插腳 接納件1B。 在前後方向上蓋20之前側處，設置具有大體矩形形 狀（在如在前後方向上所見之平面圖中）的插座單元22。 用於DC電力之插頭1C可移除地連接至插座單元22。在 前後方向上蓋20之後侧處，設置沿前後方向自插座單元 22向後延伸的大體矩形實心形狀之體(body)儲藏部分27。 在體儲藏部分27之水平相對表面上，設置用於將插座i 附接至室内物品80之固定框架2(參見圖33)的嚙合凸耳 (lugs)28 〇 52 201117497f ^^Τ-Γ^ρΐΙ 插座單元22具有***凹槽23,所述***凹槽23自插 座單元22之正面22a向後凹陷且形成為大體矩形形狀（在 如在前後方向上自前側所見之平面圖中）。在本實施例中， ***凹槽23在其兩個垂直下部及水平相對的角中具備傾 斜部分23a (在如在插頭1C之***方向上（亦即，在前後 方向上）所見之平面圖中）。 插座單兀22之***凹槽23之形狀隨電源之供應電壓 及電流以及電力供應電路的種類而變化。在由***凹槽23 包圍之插座單元22之區域中，設置插頭接納部分24，其 具有與插座單元22之正面22a齊平的正面24a。插頭接納 部分24在形狀上對應於***凹槽23，且形成為兩個側沿 垂直方^延伸且兩個侧沿水平方向延伸的大體矩形形狀 (在如在前後方向上自前側所見之平面圖中）。兩個插腳插 入孔25設置於插頭接納部分24中。 插腳***孔25為電力供應插腳***孔，其形成為具 有圓形形狀（在如在前後方向上所見之平面圖中）之通孔。 在本實施例中，在插頭接納部分24中設置作為另一插腳插 入孔的一個接地插腳***孔26。正如插腳***孔25，接地 插腳***孔26形成為具有圓形形狀（在如在前後方向上所 見之平面圖中）之通孔。 如圖32B中所繪示，插腳***孔25沿參考側24b(亦 即’插頭接納部分24之沿水平方向延伸的外周邊邊緣的上 側）來配置。插腳***孔25中之每一者設置於偏心位置 中’所述偏心位置距參考側24b比距插頭接納部分24之下 53 201117497 側24c更近。換言之，插腳***孔25設置於插頭接納 24之中心C1之上側處（其中該中心C1麵接合插頭接 納部分24之四個角的兩條對角線（亦即，單點鍵線）的交 點）。 插腳***孔25沿水平方向配置於中心C1之相對側 處。詳言之，垂直方向上插腳***孔25之面向插頭接納部 分24之下侧24c的下端部分25a配置於參考側2牝與在水 平方向上延伸經過中心C1的直線L1 (雙點鍵線）之間。 接地插腳***孔26在垂直方向上形成於插腳***孔 25之下侧處且在中心C1下方。此外，接地插腳***孔％ 形成於插腳***孔25之間的水平中間位置中，亦即，在水 平方向上在與中C1相同之水平位置中。詳言之接地 插腳***孔26之面向插頭接納部分24之參考側24b的上 端部分26a配置於插頭接納部分24之下側2如與直線 之間。 大體矩形插頭接納部分24之水平寬度H1在傾斜部分 23a不存在之區中沿垂直方向為實質上惺定的。因此，即 使插腳***孔25在垂直方向上設置於中心C1上方，但有 可忐防止插腳***孔25之間的距離D1的減少。此使得有 可能防止出現插座單元2〇〇之插腳***孔2〇3之間的距離 DR1減少的問題（如圖49A中所說明）及插座單元2〇〇之 大小增加的問題（如圖49B中所說明）。 由於插腳***孔25形成為圓形形狀，因此與在圖5〇a 及圖50B中所說明之插腳***孔3〇3相比，變得有可能減 54 201117497 卞插座單元22之垂直寬度。因此，與插腳***孔3〇3形成 為長邊在垂直方向上延伸的矩形形狀（如圖5〇A及圖5〇B 中所說明者）的插座單元3〇〇相比，有可能將插腳***孔 25配置於插賴納部分24中之中心ci的上側處^因此， 有可能防止發生如圖50B中所說明的插座單元3〇〇之大小 增加的問題。 由於接地插腳***孔26亦形成為圓形形狀，因此與 接地插腳***孔304 (參見圖50A及圖50B)相比，變得 有可能減少插座單元22之垂直寬度。此使得有可能將接地 插腳***孔26配置於插頭接納部分24中之中心C1之下 侧處，而無需增加插座單元22之大小。 此外，與插腳***孔303與接地插腳***孔3〇4之間 的距離DR6 (參見圖50A及圖50B)相比，有可能增加插 腳***孔25與接地插腳***孔26之間的最短距離。因此， 與對應於插座單元300之插頭相比，有可能增加插頭lc 之插頭插腳52A與接地插頭插腳52b (參見圖37A及圖 37B)之間的最短距離。 如圖33A中所繪示，插座體1A之體儲藏部分27經 形成以具有允許體儲藏部分27***至室内物品8〇之固定 框架2中的大小。固定框架2構成室内物品之一部分，且 具有長邊在水平方向上延伸的矩形開口 40。開口 40之形 狀使得蓋20之體儲藏部分27可自固定框架2之前側嵌入 於開口 40中。 在體儲藏部分27自固定框架2之前側嵌入至開口 4〇 55 201117497 中時，嚙合凸耳28發生彈性變形。在嚙合凸耳28之彈力 下將固疋框架2夾於插座單元21之後端部分與嚙合凸耳 =之間。因此，如圖33B中所繪示，插座1嵌入於固定框 架2中且附接至固定框架2。一旦如圖34中所說明插座j 嵌入於固定框架2巾，則僅自固定框架2之前侧可看見插 座單元22。 接下來，將參看圖35、圖36A及圖36B來描述插座i 之内部組態及插座i中之電連接結構，所述電連接結構介 於插腳接納件1B與用於供應DC電力之電線之間。 參看圖35，插座1包含插腳接納件1B，所述插腳接 納件1B容納於插麵1A内，且在插頭1(：插人至插座翠 疋22中時與插頭插腳52A及接地插頭插腳52B (參見圖 37A)輕接。插座丨之插座主體⑴具有插腳掷置部件*** 孔11，其充當用於儲藏插腳接納件1B之内部空間。 在本實施例中’插座1包含與圖37A中所繪示之插頭 1—c的形狀一致的三個插腳接納件1B。插腳接納件汨中之 每者（其由導電金屬材料製成）包含用於將插頭插腳似 =持在適當位置巾的SJ持H部分6G及自固持器部分6 π向後延伸的端子部分61。用於經由其供應DC電力之電 線中之每—者連接至端子部分6卜固持器部分60與端子 部分61經由使用單種材料而一體式形成。 插腳接納件1B充當連接至用於供應％電力的電 的&子。或者，插座〗可驗態以包含（ 持 器部分6〇之插腳接納件1B)具有連接至電線之g = 56 201117497 與所述端子可 與端子部分61 的子（未圖示）。換言之，插腳接納件IB 一體式或獨立地形成，只要固持器部分6〇 彼此電性連接便可。 在本實施例中，如圖36A中所繪示，作為端子的 j納件1B之端子部分61暴露於插座主體1〇之外部。換 ^之，與端子部分61之雜-致的通孔12形成於插座主 體10之背面上，使得插腳接納件1B之端子部分61可 插座主體10經由通孔12而向後突出。 自DC供應線Wdc延伸以供應Dc電力的電線藉由焊 接而連接至暴露在插座主體10外部的端子部分61端子 部分61與祕可藉由電藏減其他熔接方法來代替焊 接而連接至彼此。可藉由以此方式將電線連接至端子部分 來將DC電力自電線供應給插腳接納件1B。 。刀 接下來，參看圖37至圖39來描述插頭lc之組態及 用於將插頭1C***至插座1中的結構。 “ 參看圖37A’插頭1C包含電纜部分5〇及 ，分50之插頭體51。插頭體51纟有在前後方向上盘插座 1之插頭接納部分24 (參見圖38)相對的相對表面5^。 =目對表面51a上，設置以下各者：兩個插頭插腳52a， 白、自相對表面51a向後突出；一個接地插頭插腳52b，其 自相對表面51a向後突出；及大體矩形的包圍壁幻，其用 於在外部遮住插頭插腳52A及接地插頭插腳52B。八 播頭插腳52A經設置以繼向前突出而超過該包圍 名幻之前端。接地插頭插腳52B經設置以在前後方向上 57 201117497 稍微向前突出而超過該包圍壁53。插頭κ 經組態以具有對應於插座丨之插人凹槽23之形狀的形狀。 如圖37B中所繪示，插頭插腳52A設置於包圍壁幻 =中匕C2的上側處（其中該中^ C2表示接合該包圍壁 之四個角的兩條對角線（亦即，單點鏈線）之交點）。 ，頭插腳52A沿水平方向配置於中心C2之相對侧處。詳 吕之，插頭插腳52A之下端部分52a配置於水平方向上延 伸經過該中心C2之直線L2 (雙點鏈線）上方。 接地插頭插腳52B設置於包圍壁53之中心C2的下側 處（其中該中心C2表示接合該包圍壁53之四個角的兩條 對角線（亦即’單點鏈線）之交點）。接地插頭插腳52β 配置於料中間位置中（亦即，在與N C2相同之水平 位置中）。詳言之，接地插頭插腳52B之上端部分52b配 置於水平方向上延伸經職巾之直線L2(雙點 下方。 在如圖38中所纟會示插頭ic配合至插座1時，插頭體 51之包圍壁53***至插座單元22之***凹槽23中。此 時，插頭插腳52A***至插腳***孔25中，且接地插頭 插腳52B***至接地插腳***孔26中。 在遵照IEC標準之習知插座單元no中，如圖49 a及 圖49B中所繪示，***凹槽111及包圍壁102經形成以具 有圓形形狀（在如在前後方向上所見之平面圖中）。此意謂 插頭100之包圍壁102可在圓周方向上以360度***至插 入凹槽111中。 58 201117497 然而，在本實施例中’該***凹槽23及包圍壁53具 有=體正方形形狀（或大體矩形形狀）（在如在前後方向上 自如侧所見之平面圖中）。此意謂該包圍壁53相對於*** 凹槽23之***方向限於兩個方向。藉由以此方式來限制插 頭1C相對於插座丨之***方向，變得令使用者有可能易 於決定插頭1C***至插座1中的方向。因此，使用者可 易於將插頭1C***至插座1中，同時避免反向***。 參看圖39A，插腳接納件1B配置於插腳***孔25 中。在如圖39B中所說明般插頭ic***至插座1中時， 插頭1C之插頭插腳52A保持由插座1之插腳接納件iB 央住。此時，固持器部分60發生彈性變形以藉由其彈力將 插頭插聊52A固持在適當位置。因此，插座】及插頭lc 進入導電狀態。儘管圖39A及圖39B中未繪示，但接地插 頭插腳52B以類似方式而電性連接至插座1。 在使用者試圖如圖40中所說明般將插頭向*** 至插座1中的情況下，插頭1C之插頭插腳52A在垂直方 向上定位於插頭接納部分24之中心C1下方，且接地插頭 插腳52B在垂直方向上定位於插頭接納部分24之中心〇 上方。因此，插頭插腳52A及接地插頭插腳52B將與插頭 接納部分24之正面24a接觸，藉此使得不可能將插頭1C ***至插座1中。 在此狀態下，插腳***孔25與插頭插腳μα在垂直 方向上彼此間隔開’且接地插腳***孔26與接地插頭插腳 52B亦在垂直方向上彼此間隔^此可靠地防止插頭插腳 59 201117497 52A無意中***至插腳***孔25中。 接下來，將參看圖41A至圖41D來描述隨供應電壓 而變化的插座單元22之形狀。 插座單元22之形狀可如下地改變。不同種類之供應 電壓（例如，6 V、12 V、24 V及48 V)用於以自DC電 力供應單元71供應之電力來操作的電裝置72。因此，變 得有可能藉由改變該***凹槽23及插頭接納部分24 (亦 即，插座單元22之大體矩形部分）之四個角中之至少一者 的形狀以根據供應電壓來鑑別插座單元22。 更具體言之，一個或兩個傾斜部分23&與6 v、12 v 及48 V之供應電壓成對應關係而形成於***凹槽幻之四 個角中，在此種情況下，24 V之供應電壓用作參考電漫。 插頭接納部分24之四個角中對應於傾斜部分23&的一 亦形成為與傾斜部分23a 一致的傾斜形狀。 一 若供應電壓為6V，則如圖41A中所繪示，一個傾斜 部分23a形成於***凹槽23之四個角中的右 供 應電壓為12 V ’則如圖41B中所繪示，—個 右^ 形成於***凹槽23之四個角中的 供應： 48 V ’則如圖41C中所繪示 ^為 入凹㈣之四個角中的左下角及右下 24 V，則如圖41D中所繪示 =電$為 23之四個角中的任—角中。 4成於***凹槽 類似地’插頭1C之包圍壁53具有 形狀一致地形成之-_兩_斜部分。此絲有槽可= 201117497 據供應電壓來鑑別插座單元22。因此，除非插頭1C之包 圍壁53的形狀匹配插座單元22之***凹槽23的形狀，否 則插頭1C不可***至插座1中。此防止供應電壓彼此不 同的插座1與插頭1C之間的連接。. 在本實施例之插座1中，傾斜部分23a形成於***凹 槽23之四個角中的下角中。由於此特徵，與圖19中所繪 不之比較插座單元400的組態相比，傾斜部分23a與插腳 ***孔25之間的距離變大。因此，與習知插座單元 之組態相比，有可能防止插頭接納部分24之強度降低。 由於插頭1C之包圍壁53的總體形狀視供應電壓而改 變，因此使用者可在插頭1C之前後方向上在前側處用視 覺來確認插頭1C相對於插座單元22的匹配位置。此使得 使用者有可能易於將插頭1C***至插座單元22中。 接下來’將參看圖42A及圖42B來描述隨作為電源之 電力供應電路（未圖示）之種類而變的插座單元21之形 狀。電力供應電路設置於DC電力供應單元71與插座1之 間且安裝（例如）於配電板74内。 電力供應電路包含至少兩種電路，亦即，特低電壓電 路（ELV)及安全特低電壓電路（SELV)°ELV及SELV 分別在IEC標準中之EEC60950-1及IEC60335-1中指定。 電裝置72 (諸如’家用電裝置及其類似者）具有不同 的内部絕緣結構，此視使用ELV及SELV中之哪一者而 定。更具體言之’具有ELV之電裝置72使用雙絕緣結構 或加強型絕緣結構’此意謂所述絕緣結構極其嚴格。相反， 201117497^ L ^ = spare socket such as dry _, f moving toothbrush f. The plug K of the electric farmer not shown in the drawing): usually connected to the J seat. First, the plug will be described with reference to Figs. 32 to 34! Attached to the structure of the fixed frame 2. And as shown in Fig. 32A, the socket body 1A, the socket body 1A, Fig. 39), and the like. 1 includes a pin receiving member 1B within a substantially rectangular solid shape (see the socket body 1A comprising: a substantially rectangular solid shaped socket body 1 (see Fig. 35) which is injection molded by a resin material to accommodate the pin receiving member 1B ' ^ And the cover 20' is injection-molded by a resin material in such a manner that the socket main body 1 can be immersed in the front side of the cover 2G in the front-rear direction. The pin receiving member 1B is connected to the electric wire extending from the DC supply line Wdc' The DC supply line is disposed at the back side of the wall surface of the wall portion of the building. This ensures that DC power is supplied from the DC power supply unit 71 to the pin receiver 1B. At the front side of the cover 20 in the front-rear direction, a substantially rectangular shape is provided ( The socket unit 22 in a plan view as seen in the front-rear direction. The plug 1C for DC power is removably connected to the socket unit 22. At the rear side of the cover 20 in the front-rear direction, the socket unit 22 is disposed in the front-rear direction. A substantially rectangular solid shape body storage portion 27 extending rearward. On the horizontally opposite surface of the body storage portion 27, for attaching the socket i to the indoor article Engagement lugs 28 of the fixed frame 2 of 80 (see FIG. 33) 〇52 201117497f ^^Τ-Γ^ρΐΙ The socket unit 22 has an insertion groove 23 from the front surface 22a of the socket unit 22. It is recessed rearward and formed into a substantially rectangular shape (in a plan view as seen from the front side as in the front-rear direction). In the present embodiment, the insertion groove 23 is provided with the inclined portion 23a in its two vertical lower portions and horizontally opposite corners ( In the plan view as seen in the insertion direction of the plug 1C (i.e., in the front-rear direction). The shape of the insertion groove 23 of the socket unit 22 varies depending on the supply voltage and current of the power source and the type of the power supply circuit. In the region of the socket unit 22 surrounded by the insertion groove 23, a plug receiving portion 24 having a front surface 24a flush with the front surface 22a of the socket unit 22 is provided. The plug receiving portion 24 corresponds in shape to the insertion groove 23. And formed into a substantially rectangular shape in which two sides extend in a vertical direction and two sides extend in a horizontal direction (in a plan view as seen from the front side in the front-rear direction). Two pin insertion holes 25 are provided The plug insertion hole 25 is a power supply pin insertion hole formed as a through hole having a circular shape (in a plan view as seen in the front-rear direction). In the present embodiment, at the plug receiving portion A grounding pin insertion hole 26 is provided as another pin insertion hole. As the pin insertion hole 25, the grounding pin insertion hole 26 is formed as a through hole having a circular shape (in a plan view as seen in the front-rear direction). As shown in Fig. 32B, the pin insertion hole 25 is disposed along the reference side 24b (i.e., the upper side of the outer peripheral edge of the plug receiving portion 24 extending in the horizontal direction). Each of the pin insertion holes 25 is disposed in an eccentric position. The eccentric position is closer to the reference side 24b than to the lower side of the plug receiving portion 24 53 201117497 side 24c. In other words, the pin insertion hole 25 is provided at the upper side of the center C1 of the plug receiving portion 24 (where the center C1 face engages the intersection of the two diagonal lines of the four corners of the plug receiving portion 24 (ie, the single-point key line)) . The pin insertion holes 25 are disposed on the opposite sides of the center C1 in the horizontal direction. In detail, the lower end portion 25a of the pin insertion hole 25 facing the lower side 24c of the plug receiving portion 24 in the vertical direction is disposed on the reference side 2牝 and the straight line L1 (double-point key line) extending in the horizontal direction through the center C1. between. The ground pin insertion hole 26 is formed in the vertical direction at the lower side of the pin insertion hole 25 and below the center C1. Further, the ground pin insertion hole % is formed in a horizontal intermediate position between the pin insertion holes 25, that is, in the horizontal position in the horizontal direction in the same level as the middle C1. In detail, the upper end portion 26a of the pin insertion hole 26 facing the reference side 24b of the plug receiving portion 24 is disposed between the lower side 2 of the plug receiving portion 24 such as a straight line. The horizontal width H1 of the substantially rectangular plug receiving portion 24 is substantially constant in the vertical direction in the region where the inclined portion 23a is not present. Therefore, even if the pin insertion hole 25 is disposed above the center C1 in the vertical direction, there is a possibility that the distance D1 between the pin insertion holes 25 is prevented from being reduced. This makes it possible to prevent the problem that the distance DR1 between the pin insertion holes 2〇3 of the socket unit 2〇〇 is reduced (as illustrated in FIG. 49A) and the size of the socket unit 2〇〇 is increased (as shown in FIG. 49B). Explained). Since the pin insertion hole 25 is formed in a circular shape, it becomes possible to reduce the vertical width of the socket unit 22 of the 201117497 相比 compared with the pin insertion hole 3〇3 illustrated in FIGS. 5A and 50B. Therefore, it is possible to form a pin as compared with the socket unit 3A in which the pin insertion hole 3〇3 is formed in a rectangular shape in which the long side extends in the vertical direction (as illustrated in FIGS. 5A and 5B). The insertion hole 25 is disposed at the upper side of the center ci in the insertion portion 24, and therefore, it is possible to prevent the problem of an increase in the size of the socket unit 3A as illustrated in Fig. 50B. Since the ground pin insertion hole 26 is also formed in a circular shape, it becomes possible to reduce the vertical width of the socket unit 22 as compared with the ground pin insertion hole 304 (see Figs. 50A and 50B). This makes it possible to arrange the grounding pin insertion hole 26 at the lower side of the center C1 in the plug receiving portion 24 without increasing the size of the socket unit 22. Further, compared with the distance DR6 (see Figs. 50A and 50B) between the pin insertion hole 303 and the ground pin insertion hole 3〇4, it is possible to increase the shortest distance between the pin insertion hole 25 and the ground pin insertion hole 26. Therefore, it is possible to increase the shortest distance between the plug pin 52A of the plug 1c and the ground plug pin 52b (see Figs. 37A and 37B) as compared with the plug corresponding to the socket unit 300. As shown in Fig. 33A, the body storage portion 27 of the socket body 1A is formed to have a size which allows the body storage portion 27 to be inserted into the fixed frame 2 of the indoor article 8A. The fixed frame 2 constitutes a part of the indoor article and has a rectangular opening 40 whose long side extends in the horizontal direction. The shape of the opening 40 is such that the body storage portion 27 of the cover 20 can be fitted into the opening 40 from the front side of the fixing frame 2. When the body storage portion 27 is fitted into the opening 4〇 55 201117497 from the front side of the fixing frame 2, the engaging lug 28 is elastically deformed. The solid frame 2 is clamped between the rear end portion of the socket unit 21 and the engaging lug = under the elastic force of the engaging lug 28. Therefore, as shown in Fig. 33B, the socket 1 is embedded in the fixed frame 2 and attached to the fixed frame 2. Once the socket j is embedded in the fixed frame 2 as illustrated in Fig. 34, the socket unit 22 can be seen only from the front side of the fixed frame 2. Next, the internal configuration of the socket i and the electrical connection structure in the socket i will be described with reference to FIGS. 35, 36A and 36B, which are interposed between the pin receiving member 1B and the electric wire for supplying DC power. between. Referring to Fig. 35, the socket 1 includes a pin receiving member 1B which is housed in the insertion face 1A and which is inserted into the plug 1 (with the plug pin 52A and the ground pin pin 52B) Referring to Fig. 37A), the socket main body (1) has a pin throwing member insertion hole 11 which serves as an internal space for storing the pin receiving member 1B. In the present embodiment, the socket 1 is included in Fig. 37A. Three pin receiving members 1B of the same shape of the plugs 1 - c are shown. Each of the pin receiving members ( (which is made of a conductive metal material) contains SJ holdings for the plug pins to be held in place The H portion 6G and the terminal portion 61 extending rearward from the holder portion 6 π. Each of the wires for supplying DC power therethrough is connected to the terminal portion 6 and the holder portion 60 and the terminal portion 61 are via a single material. The pin receiving member 1B serves as a & sub-connector for supplying electric power for supplying % power. Alternatively, the socket can be checked to include (the pin receiving member 1B of the holder portion 6) has a connection to the electric wire. g = 56 201117497 The terminal may be a sub-portion (not shown) of the terminal portion 61. In other words, the pin receiving members IB are integrally or independently formed as long as the holder portions 6 are electrically connected to each other. In this embodiment, as shown in Fig. 36A It is shown that the terminal portion 61 of the terminal member 1B as the terminal is exposed to the outside of the socket body 1 . In other words, the through hole 12 of the terminal portion 61 is formed on the back surface of the socket body 10, so that The terminal portion 61 of the pin receiving member 1B can protrude rearward through the through hole 12. The electric wire extending from the DC supply line Wdc to supply the DC power is connected to the terminal portion of the terminal portion 61 exposed to the outside of the socket main body 10 by soldering. 61 and the secret can be connected to each other by the electric storage minus other welding method instead of welding. DC power can be supplied from the electric wire to the pin receiving member 1B by connecting the electric wire to the terminal portion in this way. The configuration of the plug lc and the structure for inserting the plug 1C into the socket 1 will be described with reference to Figs. 37 to 39. " Referring to Fig. 37A, the plug 1C includes the cable portion 5 and the plug body 51 of 50. 51纟In the front-rear direction, the opposite receiving surfaces of the plug receiving portions 24 (see Fig. 38) of the disk receptacle 1 are provided. On the facing surface 51a, the following are provided: two plug pins 52a, white, protruding rearward from the opposite surface 51a A grounding plug pin 52b projecting rearwardly from the opposite surface 51a; and a generally rectangular surrounding wall phantom for covering the plug pin 52A and the grounding pin pin 52B externally. The heading pin 52A is arranged to advance The grounding plug pin 52B is disposed to protrude slightly beyond the surrounding wall 53 in the front-rear direction 57 201117497. The plug κ is configured to have a shape corresponding to the shape of the insertion groove 23 of the socket 丨. As shown in FIG. 37B, the plug pin 52A is disposed at the upper side of the surrounding wall phantom=center C2 (wherein the middle C2 represents two diagonal lines joining the four corners of the surrounding wall (ie, a single point) The intersection of the chain)). The head pins 52A are disposed at the opposite sides of the center C2 in the horizontal direction. In detail, the lower end portion 52a of the plug pin 52A is disposed above the straight line L2 (double-point chain line) extending through the center C2 in the horizontal direction. The grounding plug pin 52B is disposed at a lower side of the center C2 of the surrounding wall 53 (wherein the center C2 represents the intersection of two diagonal lines (i.e., 'single-point chain lines) joining the four corners of the surrounding wall 53). The grounding plug pin 52β is disposed in the intermediate position of the material (i.e., in the same horizontal position as N C2 ). In detail, the upper end portion 52b of the grounding plug pin 52B is disposed in a horizontal direction extending through the line L2 of the service towel (below the double point. When the plug ic is coupled to the socket 1 as shown in FIG. 38, the plug body 51 is The surrounding wall 53 is inserted into the insertion recess 23 of the socket unit 22. At this time, the plug pin 52A is inserted into the pin insertion hole 25, and the ground plug pin 52B is inserted into the ground pin insertion hole 26. In accordance with the conventional IEC standard In the socket unit no, as shown in FIGS. 49 a and 49B , the insertion groove 111 and the surrounding wall 102 are formed to have a circular shape (in a plan view as seen in the front-rear direction). This means the plug 100 The surrounding wall 102 can be inserted into the insertion groove 111 at 360 degrees in the circumferential direction. 58 201117497 However, in the present embodiment, the insertion groove 23 and the surrounding wall 53 have a body square shape (or a substantially rectangular shape). (in the plan view as seen from the free side in the front-rear direction) This means that the direction of insertion of the surrounding wall 53 with respect to the insertion groove 23 is limited to two directions. By this way, the plug 1C is restrained relative to the socket. insert Thus, it becomes possible for the user to easily determine the direction in which the plug 1C is inserted into the socket 1. Therefore, the user can easily insert the plug 1C into the socket 1 while avoiding reverse insertion. Referring to Fig. 39A, the pin receiver 1B It is disposed in the pin insertion hole 25. When the plug ic is inserted into the socket 1 as illustrated in Fig. 39B, the plug pin 52A of the plug 1C is held by the pin receiver iB of the socket 1. At this time, the holder portion 60 Elastic deformation occurs to hold the plug plug 52A in place by its elastic force. Therefore, the socket] and the plug lc enter a conductive state. Although not shown in Figs. 39A and 39B, the ground plug pin 52B is electrically connected in a similar manner. Connected to the socket 1. In the case where the user attempts to insert the plug into the socket 1 as illustrated in Fig. 40, the plug pin 52A of the plug 1C is positioned vertically below the center C1 of the plug receiving portion 24, And the grounding plug pin 52B is positioned vertically above the center 插头 of the plug receiving portion 24. Therefore, the plug pin 52A and the grounding plug pin 52B will be opposite the front surface 24a of the plug receiving portion 24. Touching, thereby making it impossible to insert the plug 1C into the socket 1. In this state, the pin insertion hole 25 and the plug pin μα are spaced apart from each other in the vertical direction' and the ground pin insertion hole 26 and the grounding pin pin 52B are also The distance from each other in the vertical direction is such that the plug pin 59 201117497 52A is inadvertently inserted into the pin insertion hole 25. Next, the shape of the socket unit 22 which varies with the supply voltage will be described with reference to Figs. 41A to 41D. The shape of the unit 22 can be changed as follows. Different kinds of supply voltages (for example, 6 V, 12 V, 24 V, and 48 V) are used for the electric device 72 that operates with power supplied from the DC power supply unit 71. Therefore, it becomes possible to identify the outlet unit according to the supply voltage by changing the shape of at least one of the four corners of the insertion groove 23 and the plug receiving portion 24 (i.e., the substantially rectangular portion of the socket unit 22). twenty two. More specifically, one or two inclined portions 23 & are formed in correspondence with the supply voltages of 6 v, 12 v and 48 V in the four corners of the insertion groove, in which case 24 V The supply voltage is used as a reference electric diffuser. Among the four corners of the plug receiving portion 24, one corresponding to the inclined portions 23 & is also formed in an inclined shape conforming to the inclined portion 23a. If the supply voltage is 6V, as shown in FIG. 41A, a tilted portion 23a is formed in the four corners of the insertion groove 23, and the right supply voltage is 12 V', as shown in FIG. 41B. The right ^ is formed in the four corners of the insertion groove 23: 48 V ', as shown in Fig. 41C, is the lower left corner and the lower right 24 V of the four corners of the concave (four), as shown in Fig. 41D. It is shown in the figure that = electricity is 23 of the four corners of the corner. 4 is inserted into the groove. Similarly, the surrounding wall 53 of the plug 1C has a - _ slanted portion which is formed in a uniform shape. This wire has a slot = 201117497 The socket unit 22 is identified based on the supply voltage. Therefore, unless the shape of the surrounding wall 53 of the plug 1C matches the shape of the insertion groove 23 of the socket unit 22, the plug 1C cannot be inserted into the socket 1. This prevents the connection between the socket 1 and the plug 1C which are different in supply voltage from each other. In the socket 1 of the present embodiment, the inclined portion 23a is formed in the lower corner among the four corners of the insertion recess 23. Due to this feature, the distance between the inclined portion 23a and the pin insertion hole 25 becomes larger as compared with the configuration of the socket unit 400 which is not shown in Fig. 19. Therefore, it is possible to prevent the strength of the plug receiving portion 24 from being lowered as compared with the configuration of the conventional socket unit. Since the overall shape of the surrounding wall 53 of the plug 1C changes depending on the supply voltage, the user can visually confirm the matching position of the plug 1C with respect to the socket unit 22 at the front side in the front and rear directions of the plug 1C. This makes it easy for the user to insert the plug 1C into the outlet unit 22. Next, the shape of the socket unit 21 which varies depending on the kind of the power supply circuit (not shown) as the power source will be described with reference to Figs. 42A and 42B. The power supply circuit is disposed between the DC power supply unit 71 and the outlet 1 and is mounted, for example, in the distribution board 74. The power supply circuit includes at least two types of circuits, that is, an ultra low voltage circuit (ELV) and a safety extra low voltage circuit (SELV). ELV and SELV are respectively specified in EEC60950-1 and IEC60335-1 of the IEC standard. Electrical devices 72 (such as 'home electric devices and the like) have different internal insulation structures depending on which of ELV and SELV is used. More specifically, the electric device 72 having an ELV uses a double insulating structure or a reinforced insulating structure. This means that the insulating structure is extremely strict. In contrast, 201117497

L 情況有時為具有SELV之電裝置72不使用雙絕緣結構或加 強型絕緣結構。因此，具有SELV之電裝置72的絕緣結構 比具有ELV之電裝置72的絕緣結構簡單。In the case of L, sometimes the electric device 72 having the SELV does not use a double insulating structure or a reinforced insulating structure. Therefore, the insulating structure of the electric device 72 having the SELV is simpler than the insulating structure of the electric device 72 having the ELV.

在具有ELV之電裝置72連接至用於SELV之插座1 的情況下，不會出現問題。此是因為電裝置72之絕緣結構 極其嚴格。相反’若具有SELV之電裝置72連接至用於 ELV之插座1，則通常出現的情況為電裝置72在被供應危 險之向電壓時會發生故障。此是因為電裝置72之絕緣結構 為簡化的。因此，需要鑑別插座1及插頭1C是否與ELV 或SELV相容。詳言之，必需防止具有SELV之電裝置72 無思中連接至用於ELV之插座1。 鑒於此’如圖42A中所繪示’用於SELV之插座單元 22包含形成於***凹槽23之左下延伸部中的延伸凹槽 23b。延伸凹槽23b與***凹槽23組合且經形成以自*** 凹槽23之下部延伸部向上延伸。相反，如圖42B中所繪 不’用於ELV之插座單元22是省略延伸凹槽23b的結構。 插座單元22之此形狀改變無關緊要。因此，使用者有可能 鑑別用於SELV之插座單元22與用於ELV之插座單元22。 儘管用於ELV之插頭1C可***至用於SELV之插座 單元22中，但用於SELV之插頭ic不可***至用於Elv 之插座單元22中。此使得有可能防止具有SELV之電裝置 72無意中連接至用於ELV之插座1。 在形狀隨電力供應電路之種類而變化的插座單元 中，能想到要使用以下組態（第一組態），其中，如圖47人 62 201117497 中所繪示，延伸凹槽23b獨立於***凹槽23而形成。此外， 能想到要使用以下組態（第二組態），其中，如圖47B中 所繪示，延伸凹槽23b形成於***凹槽23外部，亦即插頭 接納部分24外部。 然而，第一組態遭受一種因該延伸凹槽23b與插腳插 入孔25之間的距離的縮短而使插頭接納部分24之強度降 低的問題。儘管第二組態沒有強度降低問題，但其引起一 種歸因於該延伸凹槽23b之設置而使插座單元22之大小變 大的問題。 若該延伸凹槽23b與***凹槽23在其下側中組合， 則與第一組態相比，有可能增加該插腳***孔25與該延伸 凹槽23b之間的距離。此外，若該延伸凹槽23b自該*** 凹槽23之下部延伸部向上延伸（亦即，若延伸凹槽2扑 形成於插頭接納部分24中），則有可能防止插座單元22 之大小的任何增加。因此，藉由將該延伸凹槽23b與該插 入凹槽23 -體式形成’變得有可崎決在上文陳述之第一 組態及第二組態中引起的問題。 本實施例，插座1能夠提供以下的有利效應。 (1)插座單元22之***凹槽23經組態以具有大體矩 形形狀。因此，與圖48中崎示的環狀形狀之***凹槽 111相比’有可能限制插頭lc之包圍壁53***至摘入凹 槽23中Λ方向。此使得使用者能夠易於斷定插頭lc*** 至插座單70 22中的所要方向，藉此改良使用的簡易性。因 此使用者可易於將插頭lc***至插座i中，同時避免 63 201117497‘ 反向***。 另外，插腳***孔25沿插頭接納部分24之外周邊邊 緣的上侧形成於插頭接納部分24之中心C1上方。此使得 有可能在無需在插人凹槽23或包圍壁53巾另外形成防反 向***結構的情況下防止插頭1(：反向***至插座1中。 因此’與在插座中糾形成防反向插人結構的情況相比， 有可能防止插座1之大小的增加。 (2) 藉由將電線連接至作為端子之插腳接納件比的 暴露在插座主體1〇外敎端子部分61而自電線將DC電 力供應至插腳接納件1B。若電線是藉由焊接或熔接而連接 至插腳接納件1B的暴露在插座主體1〇外部之端子部分 61，則有可能可靠地執行電線與插腳接納件1B之間的電 性連接。 (3) 插腳接納件1B與端子可形成為單一部件。換言 之，插腳接納件1B充當端子。由於此特徵，與插腳接納 件1B與端子彼此獨立地形成形成之情況相比有可能減 少組件之數目。 (4) 插腳***孔25之下端部分25a在垂直方向上位 於中心ci上方。此使得有可能在使用者試圖將插頭ic反 向***至插座1中時防止插頭插腳52A***至插腳***孔 25中。因此’有可能更可靠地防止發生反向***。 (5) 傾斜部分23a形成於***凹槽23中。包圍壁53 亦具備與***凹槽23之形狀一致的傾斜部分。由於包圍壁 53之形狀及***凹槽23之形狀隨供應電壓而變化，因此 64 201117497 有可能防止將插頭lc錯誤地插人至供應錢不同於插 ic之供應電壓的插座1中。 此夕’使用者可藉由在前後方向上自前側用視覺確認 匕圍壁53之形狀來斷定_ lc相對於插座丨之***方 向。此使得使用者能夠易於將插頭lc插人至插座i中。 (6)傾斜部分23a形成於***凹槽23之下側中（亦 即’插頭接納部分24之下侧24c附近）。與傾斜部分形成 於***凹槽23之上側中（亦即，插頭接納部分24之參考 侧24b附近）的，组態相比，此使得有可能增加傾斜部分η 與插頭插人孔25之_麟。因此，㈣材能增加插 接納部分24之強度’且因此，防止在插人及拉出插頭π 時原本會發生的對插頭接納部分24之損害。 (7)插頭接納部分24具有位置對應於***凹槽23之 4貝斜。|5为23a且形狀與***凹槽23之傾斜部分— 傾斜侧。此使得有可能防止插人凹槽23之寬度變窄。、 在插頭接納部分24不具有位置對應於***凹槽幻 傾斜部分23a的傾斜部分的假設情況中，僅該***凹样 之外周邊邊緣形麵傾斜雜。因此，插頭接納部分、 之外周邊邊緣與傾斜部分23a中之該插人凹槽23之 度變得窄於除了傾斜料23a外之區中的寬度。在本 例中，插頭接納部分24之傾斜側與該***凹槽23之 部分23a成對應關係而形成。此使得有可能解 凹 槽23之寬度變窄的問題。 拖入凹 (8)該***凹槽23之傾斜部> 仏形成為與插頭接 65 201117497 納部分24之傾斜部分一致的傾斜形狀。因此，傾斜形狀為 簡單的且可藉由僅切掉該***凹槽23及插頭接納部分24 之四個角中的一些來實現。由於此特徵，有可能以較簡單 方式提供能夠防止插頭1C錯誤地***至供應電壓不同於 插頭1C之供應電壓的插座i中的結構。此使得有可能易 於製造插座1。 (9) 該延伸凹槽23b經組態以自該***凹槽23延伸。 與該延伸凹槽23b獨立於該***凹槽23而形成的情況相 比’此使得有可能防止該插座單元22之大小增加及插頭接 納部分24之強度降低。 (10) 該延伸凹槽23b形成於該***凹槽23之下部延 伸部中。與延伸凹槽形成於插腳***孔25與該***凹槽 23之間的情況相比，此使得有可能增加插頭接納部分24 之強度。因此，有可能防止在***及拉出插頭1C時原本 會發生的對插頭接納部分24之損害。 (11) 插座單元22之正面22a在前後方向上與插頭接 納部分24之正面24a齊平。插頭lc之插頭插腳52A在前 後方向上稍微向前突出而超過該包圍壁53。此等組態確保 了在使用者試圖將插頭1C反向***至插座單元22中時， 在該包圍壁53相當多部分插人至插人凹槽23中之前，插 頭插腳52A與插頭接納部分24相接觸。 此使得使用者能夠清楚地顺出插頭lc至插座單元 22中之反向***。在插頭1C反向***至插座單元22中 時’不再有可能將_ 1C保持成附接至插座私22。此 66 201117497 =除了使插頭1C保持反向地***至插座單元22中的可能 (U)插頭接納部分24具備***有接地插頭插腳52b 的一個接地插腳***孔26。接地插腳***孔26具有圓形 形狀（在如在插頭1(：之***方向上所見之平面圖中）。由 於此特徵，插座1是與具有接地插頭插腳52B之插頭⑴ 以及不具有接地插頭插腳之插頭（未圖示）相容。、 第五實施例之經修改實例 第五實施例之插座1不限於上述内容’而是可如下修 改。以下經修改實例並非僅適用於第五實施例，而是可二 彼此組合之方式來具體化。 該延伸凹槽23b可不形成於插頭接納部分24中。舉 例而言，如圖43A中所繪示，該延伸凹槽23b可經形成以 在垂直方向上自***凹槽23之下侧向下延伸。如圖43B 中所繪示，該延伸凹槽23b可經形成以在垂直方向上自該 ***凹槽23之上側向上延伸。如圖43C中所繪示，該延 伸凹槽23b可經形成以在水平方向上自該***凹槽23之左 側向左延伸。如圖43D中所繪示，該延伸凹槽23b可經形 成以在水平方向上自該***凹槽23之右側向右延伸。 儘管根據第五實施例插座1之供應電壓藉由在***凹 槽23之下侧的一個或兩個角中形成傾斜部分23a來進行識 別，但用於識別插座1之供應電壓的組態不限於此。若插 入凹槽23之形狀改變以准許***具有相容供應電壓之插 頭1C的包圍壁53，則這樣是完全可行的。 67 201117497. 舉例而言，如圖44A中所繪示，可藉由切掉該***凹 槽23之四個角中的一者來形成階梯狀凹座23c。如圖44b 中所繪示’可藉由部分切掉該***凹槽23來形成—在側面 向外突出的突起23d。在此種情況下，插頭ic之包圍壁 53經形成以具有與該***凹槽23相同之形狀（在如在前 後方向上自前側所見之平面圖中）。代替切掉該***凹二 23之四個角中之一者以形成凹座(recess)23c，如圖44c ^ 圖44D中所示，可在***凹槽23之下部延伸部的右端或 左端部分中形成該延伸凹槽23b。 儘管根據第五實施例傾斜部分23a及該延伸凹槽23b 形成於該***凹槽23之下側中，但該延伸凹槽23b ^位置 不限於此。舉例而言，傾斜部分23a及該延伸凹槽23b可 形成於該***凹槽23之上侧中。 儘管根據第五實施例插腳***孔25之下端部分 配置於插頭接納部分24之中心C1上方，但下端部分仏 之位置不限於此。在使用者試圖將插頭lc反向***至插 座丄中時若防止了插頭插腳52A***至插腳***孔25中， 則這樣是完全可行的。此意謂插腳***孔25之下端部分 25a可上形成於與中心、α相同之垂直位置中。 奸入根據第五實施職雖_分24具備接地插腳 接纳邱八6本發明可適用於如® 45 ★所繪示未在插頭 、’。刀中形成接地插腳***孔26的插座1。 個握Γ座體1A可形成為遵照日本工業標準且落在多達三 、’’寸、一個半模組尺寸、兩模組尺寸或三 68 201117497 模組尺寸内的大小，所述三個模組可並肩（side_byside)附 接至一種大正方形轂塑可互換佈線裝置之固定框架。此組 態使得有可能將插座體1A附接至其他等同地標準化之佈 線裝置的固定框架（未圖示）。因此，無需另外製造專用於 插座體1A之固定框架，此有助於使固定框架標準化且增 強插座1之使用的簡易性。 曰 儘管根據第五實施例該***凹槽23經形成為長邊在 水平方向上延伸且短邊在垂直方向上延伸的大體矩形形 狀，但該***凹槽23之形狀不限於此。該***凹槽23可 形成為具有相等之水平邊及垂直邊的正方形形狀。 【圖式簡單說明】 圖1為繪示具備根據本發明之DC插座的DC分配系 統之總體組態的示意圖。 圖2A為繪示根據本發明之第一實施例的dc插座之 透視圖，且圖2B為其正視圖。 圖3A為繪示尚未附接至固定框架的第一實施例之 DC插座的透視圖，且圖3B為繪示附接至固定框架的第一 實施例之DC插座的透視圖。 圖4為繪示附接至固定框架的第一實施例之dc插座 及板的正視圖。 圖5為繪示第一實施例之DC插座的分解透視圖。 圖6為繪示第一實施例之DC插座的背面結構的透視 圖。 圖7A為繪示第一實施例之DC插座之橫截面結構的 69 201117497 剖面圖，其中用於供應DC電力之電線尚未***至插座主 體中，且圖7B為繪示電線***至插座主體中的橫載面結 構的剖面圖。 圖8A為繪示第一實施例之DC插座之橫截面結構的 剖面圖，其中用於供應DC電力之電線***至插座主體 中，且圖8B為繪示操作釋放按纽的橫截面結構的剖面圖。 圖9A為繪不***至第一實施例之DC插座中的插頭 之透視圖，且圖9B為其正視圖。 圖10為繪示第一實施例之DC插座與插頭之間的*** 關係的透視圖。 圖11A為繪示第一實施例之DC插座及插頭之橫截面 結構的剖面圖，其中插頭尚未***至插座中，且圖11B為 繪示插頭***至插座中的橫戴面結構之剖面圖。 圖12為繪示反向***至第一實施例之DC插座中之插 頭的正視圖。 圖13A至圖13D為繪示形狀隨供應電壓變化的第一 實施例之DC插座的不同插座單元的正視圖。 圖14A及圖14B為繪示形狀隨電力供應電路之種類而 變化的第一實施例之DC插座的不同插座單元的正視圖。 圖15A至圖15G為繪示第一實施例之DC插座附接至 固定框架的不同實例之正視圖。 圖16A至圖16D為繪示第一實施例之DC插座之插座 單元的一群經修改實例的正視圖。 圖17A至圖17D為繪示第一實施例之DC插座之插座 201117497 單元的另一群經修改實例的正視圖。 圖18為繪示第一實施例之DC插座之插座單元的另一 經修改實例的正視圖。 圖19為繪示比較用DC插座之插座單元的正視圖。 圖20A及圖20B為繪示另一比較用DC插座之插座單 元的正視圖。 圖21A為繪示根據本發明之第二實施例的DC插座之 平面圖’圖21B為其正視圖，圖21C為其側視圖，且圖 21D為其後視圖。 圖22為繪示第二實施例之DC插座的分解透視圖。 圖23A為沿圖21D中之線A-A截取之剖面圖，繪示 尚未連接有電線的第二實施例之DC插座，圖23B為沿圖 21D中之線A-A截取的剖面圖，繪示連接有電線的第二實 施例之DC插座，且圖23C為繪示連接有電線的第二實施 例之DC插座的側視圖。 圖24A為繪示根據本發明之第三實施例的DC插座之 平面圖’圖24B為其正視圖，圖24C為其側視圖，且圖 24D為其後視圖。 圖25為繪示第三實施例之DC插座的分解透視圖。 圖26A為沿圖24D中之線B-B截取的剖面圖，繪示 尚未連接有電線的第三實施例之DC插座，且圖26B為沿 圖24D中之線B-B截取的剖面圖，繪示連接有電線的第三 實施例之DC插座。 圖27A為繪示根據本發明之第四實施例的DC插座之 71 201117497 平面圖，® 27B為其正視圖，圖27C為其側視圖，且圖 27D為其後視圖。 圖28為繪示第四實施例之DC插座的分解透視圖。 圖29A為沿圖27D中之線C-C截取的剖面圖，繪示 尚未連接有電線的第四實施例之DC插座，且圖29B為沿 圖27D中之線C-C截取的剖面圖，繪示連接有電線的第四 實施例之DC插座。 圖30A至圖30D為繪示第四實施例之dc插座之插座 單元的不同經修改實例的正視圖。 圖31A為繪示第四實施例之D c插座之經修改實例的 透視圖’且圖31B為其正視圖。 圖32A為繪示根據本發明之第五實施例的dc插座之 透視圖，且圖32B為其正視圖。 圖33A為繪示尚未附接至固定框架的第五實施例之 DC插座的透視圖’且圖33B為繪示附接至固定框架的第 五實施例之DC插座的透視圖。 圖34為繪示附接至固定框架的第五實施例之dc插座 的正視圖。 圖35為繪示第五實施例之dc插座的分解透視圖。 圖36A為繪示第五實施例之dc插座的背面結構的透 視圖’且圖36B為繪示第五實施例之DC插座的側面結構 的側視圖。 圖37A為繪示***至第五實施例之DC插座中的插頭 之透視圖’且圖37B為其正視圖。 72 201117497 圖38為繪示第五實施例之DC插座與插頭之間的*** 關係的透視圖。 圖39A為繪示第五實施例之DC插座之橫截面結構的 剖面圖，其中插頭尚未***至插座中，且圖39B為繪示插 頭***至插座中的橫截面結構之剖面圖。 圖40為綠示反向***至第五實施例之DC插座甲之插 頭的正視圖。 圖41A至圖41D為繪示形狀隨供應電壓而變化的第 五實施例之DC插座的不同插座單元的正視圖。 圖42A及圖42B為繪示形狀隨電力供應電路之種類而 變化的第五實施例之DC插座的不同插座單元的正視圖。 圖43A至圖43D為繪示第五實施例之DC插座之插座 單元的一群經修改實例的正視圖。 圖44A至圖44D為繪示第五實施例之DC插座之插座 單元的另一群經修改實例的正視圖。 圖45為繪示第五實施例之DC插座之插座單元的另一 經修改實例的正視圖。 圖46A至圖46C為繪示形狀隨供應電流變化的第一實 施例之DC插座的不同插座單元的正視圖。 圖47A及圖47B為繪示習知DC插座之插座單元的正 視圖。 圖48A為繪示習知插頭之正視圖，且圖48B為繪示習 知DC插座之插座單元的正視圖。 圖49A及圖49B為繪示比較用dc插座之插座單元的 73 201117497 正視圖。 圖50A及圖50B為繪示另一比較用DC插座之插座單 元的正視圖。 【主要元件符號說明】 1 :插座 1A :插座體 1B :插腳接納件 1C :插頭 1D:端子 1E :鎖定彈簀 1F :釋放按鈕 2 :安裝框架 2D :端子 3 :扣緊板 3a :開口 4;交流電插座 4a :交流電插座 5:用於同軸電纜之插座 6:用於電話線之模組化插座 7 :用於LAN之模組化插座 8 :開關 10 :插座主體 11 :電線***孔 12 :電線***孔 74 201117497 13 :側壁 14 :切開部分 15 :電線***孔 20 :蓋 21 :耦接框架安裝部分 22 :插座單元 22a :正面 23 :***凹槽 23a :傾斜部分 23b :延伸凹槽 23c :凹座 23c’ ：第二延伸凹槽 23d :突起 24 :插頭接納部分 24a :正面 24b :參考側 24c :下侧 25 :插腳***孔 25a :下端部分 25A :電源插腳***孔 25B :接地插腳***孔 26 :接地插腳***孔 26a :接地插腳***孔之上端部分 27 :插座體之體儲藏部分 ϋ 75 201117497 28 :喷合凸耳 30 :耦接框架 31 :突起 40 :開口 41 :固定部分 42 ;連接部分 43 :第一通孔 44 :第二通孔 45:裝置固定部分 46 :固定孔 50 :電纜部分 51 :插頭體 51a :相對表面 52 :插頭插腳 52a :插頭插腳之下端部分 52b :接地插頭插腳之上端部分 52A :插頭插腳 52B ;接地插頭插腳 53 :包圍壁 60 :固持器部分 61 :端子部分 62 :插腳搁置部件連接部分 63 :彈簧移動限制部分 64 :端子部分 76 201117497 65 :按壓件 65a :第一按壓件 65b :第二按壓件 66:套環部分 70 :直流配電系統 71 :直流電力供應單元 72 :電裝置 72a :資訊裝置 72b :照明裝置 72c :正門系統裝置 72d :家庭安全裝置 73 :直流斷路器 74 :配電板 75 :主斷路器 76 :交流-直流轉換器 77 :協作控制單元 77a :直流-直流轉換器 78 :分散式電源 78a :二次電池 78b :太陽能電池 78c :燃料電池 79 :主電源 80 :端子體部分/室内物品 81 :螺桿部件 77 i： 201117497 81a :螺桿部件之頭部 81b :螺桿部件之轴 82 :插腳搁置部件固持部分 83 :螺桿固持部分 84 :固定件 85 :端子體部分 85a :端子體部分之下板 100 :插頭 101 :插頭插腳 102 :包圍壁 103 :肋狀物 110 :插座單元 111 :***凹槽 112 :插頭接納部分 113 :肋狀物***凹槽 114 :插腳***孔 180 :凹痕 200 :插座單元 201 :***凹槽 202 :插頭接納部分 203 :插腳***孔 300 :插座單元 301 :***凹槽 302 :插頭接納部分 78 201117497. 303 :插腳***孔 304 :接地插腳***孔 400 :比較插座單元 401 ··***凹槽 402 :插頭接納部分 403 :插腳***孔 404 :切開凹槽 405 :切開凹槽 406 :切開凹槽 407 :切開凹槽 408 :切開凹槽 C1 :插頭接納部分之中心 C2 :包圍壁之中心 CR1 :包圍壁之中心 CR2:***凹槽之中心 CR3 :圓形插頭接納部分之中心 CR4 :插頭接納部分之中心 D1 :插腳***孔之間的距離 DR1 :插腳***孔之間的距離 DR2 :***凹槽之外徑 DR3 :***凹槽之外尺寸 DR4 :***凹槽之外尺寸 DR5 :插腳***孔之間的距離 DR6 :插腳***孔與接地插腳***孔之間的距離 79 201117497 Η :住宅 HI :插頭接納部分之水平寬度 L :電線 W1 :絞合線導體 W2 ;電絕緣蒙皮部分 Wdc :直流供應線/電線In the case where the electric device 72 having the ELV is connected to the socket 1 for the SELV, no problem occurs. This is because the insulation structure of the electric device 72 is extremely strict. On the contrary, if the electric device 72 having the SELV is connected to the socket 1 for the ELV, it is usually the case that the electric device 72 malfunctions when it is supplied with a dangerous voltage. This is because the insulation structure of the electric device 72 is simplified. Therefore, it is necessary to discriminate whether the socket 1 and the plug 1C are compatible with ELV or SELV. In detail, it is necessary to prevent the electric device 72 having the SELV from being connected to the socket 1 for the ELV without thinking. In view of this, the socket unit 22 for SELV as shown in Fig. 42A includes an extending groove 23b formed in the lower left extension portion of the insertion groove 23. The extension groove 23b is combined with the insertion groove 23 and formed to extend upward from the lower extension portion of the insertion groove 23. In contrast, the socket unit 22 for ELV as depicted in Fig. 42B is a structure in which the extending groove 23b is omitted. This shape change of the socket unit 22 does not matter. Therefore, it is possible for the user to identify the outlet unit 22 for the SELV and the outlet unit 22 for the ELV. Although the plug 1C for the ELV can be inserted into the socket unit 22 for the SELV, the plug ic for the SELV cannot be inserted into the socket unit 22 for the Elv. This makes it possible to prevent the electric device 72 having the SELV from being inadvertently connected to the socket 1 for the ELV. In the socket unit whose shape varies depending on the kind of the power supply circuit, it is conceivable to use the following configuration (first configuration) in which the extension groove 23b is independent of the insertion recess as shown in Fig. 47, person 62 201117497 Formed by the groove 23. Further, it is conceivable to use the following configuration (second configuration) in which the extending groove 23b is formed outside the insertion groove 23, that is, outside the plug receiving portion 24, as illustrated in Fig. 47B. However, the first configuration suffers from a problem that the strength of the plug receiving portion 24 is lowered due to the shortening of the distance between the extending groove 23b and the pin insertion hole 25. Although the second configuration has no strength reduction problem, it causes a problem that the size of the socket unit 22 becomes large due to the setting of the extension groove 23b. If the extension groove 23b is combined with the insertion groove 23 in its lower side, it is possible to increase the distance between the pin insertion hole 25 and the extension groove 23b as compared with the first configuration. Further, if the extending groove 23b extends upward from the lower extension portion of the insertion groove 23 (that is, if the extending groove 2 is formed in the plug receiving portion 24), it is possible to prevent any size of the socket unit 22 increase. Therefore, the formation of the extension groove 23b and the insertion groove 23 can be resolutely caused in the first configuration and the second configuration stated above. In this embodiment, the socket 1 can provide the following advantageous effects. (1) The insertion groove 23 of the socket unit 22 is configured to have a substantially rectangular shape. Therefore, it is possible to restrict the insertion of the surrounding wall 53 of the plug lc into the winding direction of the pick-up recess 23 as compared with the annular-shaped insertion groove 111 shown in Fig. 48. This allows the user to easily judge the desired direction in which the plug lc is inserted into the socket unit 70 22, thereby improving the ease of use. Therefore, the user can easily insert the plug lc into the socket i while avoiding 63 201117497 'reverse insertion. Further, the pin insertion hole 25 is formed above the center C1 of the plug receiving portion 24 along the upper side of the outer peripheral edge of the plug receiving portion 24. This makes it possible to prevent the plug 1 (with the reverse insertion into the socket 1) without additionally forming an anti-reverse insertion structure in the insertion recess 23 or the surrounding wall 53. Therefore, the anti-reverse is formed in the socket. It is possible to prevent an increase in the size of the socket 1 as compared with the case of the insertion structure. (2) The wire is exposed to the outer terminal portion 61 of the socket body 1 by connecting the wire to the pin receiving member ratio as a terminal The DC power is supplied to the pin receiving member 1B. If the electric wire is connected to the terminal portion 61 of the pin receiving member 1B exposed to the outside of the socket main body 1 by welding or welding, it is possible to reliably perform the electric wire and the pin receiving member 1B. (3) The pin receiving member 1B and the terminal may be formed as a single member. In other words, the pin receiving member 1B serves as a terminal. Due to this feature, the pin receiving member 1B and the terminal are formed independently of each other. It is possible to reduce the number of components. (4) The lower end portion 25a of the pin insertion hole 25 is located above the center ci in the vertical direction. This makes it possible for the user to attempt to insert the plug ic backward. In the socket 1, the plug pin 52A is prevented from being inserted into the pin insertion hole 25. Therefore, it is possible to prevent the reverse insertion from occurring more reliably. (5) The inclined portion 23a is formed in the insertion groove 23. The surrounding wall 53 is also provided with the insertion. The inclined portion of the shape of the groove 23. Since the shape of the surrounding wall 53 and the shape of the insertion groove 23 vary with the supply voltage, it is possible to prevent the plug lc from being mistakenly inserted into the supply of money. In the socket 1 for supplying voltage, the user can determine the insertion direction of the _ lc relative to the socket 用 by visually confirming the shape of the dam wall 53 from the front side in the front-rear direction. This allows the user to easily insert the plug. Lc is inserted into the socket i. (6) The inclined portion 23a is formed in the lower side of the insertion groove 23 (i.e., 'near the lower side 24c of the plug receiving portion 24'). The inclined portion is formed on the upper side of the insertion groove 23. In the middle (that is, in the vicinity of the reference side 24b of the plug receiving portion 24), this makes it possible to increase the inclination of the inclined portion η and the plug insertion hole 25. Therefore, the (four) material can increase the insertion receiving portion 24 The strength 'and therefore, the damage to the plug receiving portion 24 that would otherwise occur when the plug π is inserted and pulled out. (7) The plug receiving portion 24 has a position corresponding to the inclination of the insertion groove 23. 4 It is 23a and is shaped to be inclined with the inclined portion of the insertion groove 23. This makes it possible to prevent the width of the insertion groove 23 from being narrowed. The plug receiving portion 24 does not have a position corresponding to the insertion groove slanted portion 23a. In the hypothetical case of the inclined portion, only the peripheral edge surface of the insertion concave portion is inclined. Therefore, the degree of insertion of the insertion receiving portion, the outer peripheral edge and the inclined portion 23a in the inclined portion 23a becomes narrower than The width in the area outside the inclined material 23a. In this example, the inclined side of the plug receiving portion 24 is formed in correspondence with the portion 23a of the insertion groove 23. This makes it possible to solve the problem that the width of the groove 23 is narrowed. The inclined portion (8) of the insertion groove 23 is formed into an inclined shape conforming to the inclined portion of the plug portion 65 201117497. Therefore, the inclined shape is simple and can be realized by cutting only some of the four corners of the insertion groove 23 and the plug receiving portion 24. Due to this feature, it is possible to provide a structure in a relatively simple manner capable of preventing the plug 1C from being erroneously inserted into the socket i whose supply voltage is different from the supply voltage of the plug 1C. This makes it possible to manufacture the socket 1 easily. (9) The extension groove 23b is configured to extend from the insertion groove 23. This is made possible in comparison with the case where the extending groove 23b is formed independently of the insertion groove 23, which makes it possible to prevent the size of the socket unit 22 from increasing and the strength of the plug receiving portion 24 from being lowered. (10) The extending groove 23b is formed in the lower extension portion of the insertion groove 23. This makes it possible to increase the strength of the plug receiving portion 24 as compared with the case where the extending groove is formed between the pin insertion hole 25 and the insertion groove 23. Therefore, it is possible to prevent the damage to the plug receiving portion 24 which would otherwise occur when the plug 1C is inserted and pulled out. (11) The front surface 22a of the socket unit 22 is flush with the front surface 24a of the plug receiving portion 24 in the front-rear direction. The plug pin 52A of the plug lc protrudes slightly forward in the front-rear direction beyond the surrounding wall 53. These configurations ensure that when the user attempts to insert the plug 1C back into the socket unit 22, the plug pin 52A and the plug receiving portion 24 before a substantial portion of the surrounding wall 53 is inserted into the insertion recess 23 Contact. This allows the user to clearly follow the reverse insertion of the plug lc into the socket unit 22. When the plug 1C is reversely inserted into the socket unit 22, it is no longer possible to keep the _1C attached to the socket private 22. This 66 201117497 = except that the plug 1C is held in the reverse direction into the socket unit 22 (U) The plug receiving portion 24 is provided with a ground pin insertion hole 26 into which the ground plug pin 52b is inserted. The ground pin insertion hole 26 has a circular shape (as seen in the plan view of the plug 1 (in the insertion direction). Due to this feature, the socket 1 is the plug (1) having the ground plug pin 52B and the ground plug pin. The plug (not shown) is compatible. The modified example of the fifth embodiment The socket 1 of the fifth embodiment is not limited to the above, but may be modified as follows. The following modified examples are not only applicable to the fifth embodiment, but The extension groove 23b may not be formed in the plug receiving portion 24. For example, as shown in Fig. 43A, the extension groove 23b may be formed to be in the vertical direction. The lower side of the insertion groove 23 extends downward. As shown in Fig. 43B, the extending groove 23b may be formed to extend upward from the upper side of the insertion groove 23 in the vertical direction. As depicted in Fig. 43C The extension groove 23b can be formed to extend leftward from the left side of the insertion groove 23 in the horizontal direction. As shown in FIG. 43D, the extension groove 23b can be formed to be horizontally Inserted into the groove 23 The right side extends to the right. Although the supply voltage of the socket 1 according to the fifth embodiment is identified by forming the inclined portion 23a in one or both corners of the lower side of the insertion groove 23, it is used to identify the supply voltage of the socket 1. The configuration is not limited thereto. This is completely feasible if the shape of the insertion groove 23 is changed to permit insertion of the surrounding wall 53 of the plug 1C having a compatible supply voltage. 67 201117497. For example, as shown in Fig. 44A It can be noted that the stepped recess 23c can be formed by cutting one of the four corners of the insertion groove 23. As shown in Fig. 44b, the portion can be formed by partially cutting the insertion groove 23. - a projection 23d projecting outwardly on the side. In this case, the surrounding wall 53 of the plug ic is formed to have the same shape as the insertion groove 23 (in a plan view as seen from the front side in the front-rear direction). Instead of cutting out one of the four corners of the insertion recess 23 to form a recess 23c, as shown in Fig. 44c, Fig. 44D, the right or left end portion of the extension of the lower portion of the insertion groove 23 may be formed. The extension groove 23b is formed in the middle. The inclined portion 23a and the extending groove 23b are formed in the lower side of the insertion groove 23, but the position of the extending groove 23b is not limited thereto. For example, the inclined portion 23a and the extending groove 23b may be formed. In the upper side of the insertion groove 23. Although the lower end portion of the pin insertion hole 25 is disposed above the center C1 of the plug receiving portion 24 according to the fifth embodiment, the position of the lower end portion 仏 is not limited thereto. This is completely feasible if the plug pin 52A is prevented from being inserted into the pin insertion hole 25 when the plug lc is inserted back into the socket 。. This means that the lower end portion 25a of the pin insertion hole 25 can be formed on the center, α In the same vertical position. According to the fifth implementation, the _ minute 24 has a grounding pin. Accepting Qiu VIII 6 The invention can be applied to, for example, the ® 45 ★ is not shown in the plug, '. A socket 1 of the grounding pin insertion hole 26 is formed in the blade. The grip body 1A can be formed to conform to Japanese industrial standards and fall within a size of up to three, 'inch, one and a half module size, two module sizes or three 68 201117497 module sizes, the three modules Side_byside can be attached to a fixed frame of a large square hub plastic interchangeable wiring device. This configuration makes it possible to attach the socket body 1A to a fixing frame (not shown) of other equally standardized wiring devices. Therefore, it is not necessary to separately manufacture a fixing frame dedicated to the socket body 1A, which contributes to standardization of the fixing frame and enhances the ease of use of the socket 1. Although the insertion groove 23 is formed in a substantially rectangular shape in which the long side extends in the horizontal direction and the short side extends in the vertical direction according to the fifth embodiment, the shape of the insertion groove 23 is not limited thereto. The insertion groove 23 can be formed in a square shape having equal horizontal sides and vertical sides. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the overall configuration of a DC distribution system having a DC outlet according to the present invention. Fig. 2A is a perspective view showing a dc socket according to a first embodiment of the present invention, and Fig. 2B is a front view thereof. 3A is a perspective view showing the DC socket of the first embodiment that has not been attached to the fixed frame, and FIG. 3B is a perspective view showing the DC socket of the first embodiment attached to the fixed frame. Fig. 4 is a front elevational view showing the dc socket and the board of the first embodiment attached to the fixed frame. Fig. 5 is an exploded perspective view showing the DC socket of the first embodiment. Fig. 6 is a perspective view showing the back structure of the DC socket of the first embodiment. 7A is a cross-sectional view showing a cross-sectional structure of a DC socket of the first embodiment 69 201117497, in which a wire for supplying DC power has not been inserted into the socket main body, and FIG. 7B is a view showing that the electric wire is inserted into the socket main body. A cross-sectional view of the cross-sectional surface structure. 8A is a cross-sectional view showing a cross-sectional structure of a DC socket of the first embodiment, in which a wire for supplying DC power is inserted into a socket main body, and FIG. 8B is a cross-sectional view showing a cross-sectional structure of the operation release button. Figure. Fig. 9A is a perspective view showing a plug which is not inserted into the DC socket of the first embodiment, and Fig. 9B is a front view thereof. Fig. 10 is a perspective view showing the insertion relationship between the DC socket and the plug of the first embodiment. Fig. 11A is a cross-sectional view showing the cross-sectional structure of the DC socket and the plug of the first embodiment, in which the plug has not been inserted into the socket, and Fig. 11B is a cross-sectional view showing the cross-sectional structure in which the plug is inserted into the socket. Figure 12 is a front elevational view showing the plug inserted in the DC socket of the first embodiment. 13A to 13D are front elevational views showing different socket units of the DC socket of the first embodiment in which the shape varies with the supply voltage. 14A and 14B are front elevational views showing different socket units of the DC socket of the first embodiment in which the shape varies depending on the kind of the power supply circuit. 15A to 15G are front elevational views showing different examples in which the DC socket of the first embodiment is attached to a fixed frame. 16A to 16D are front views showing a modified example of a group of socket units of the DC outlet of the first embodiment. 17A to 17D are front views showing another modified example of the socket 201117497 unit of the DC outlet of the first embodiment. Fig. 18 is a front elevational view showing another modified example of the socket unit of the DC outlet of the first embodiment. Figure 19 is a front elevational view showing the socket unit of the DC socket for comparison. 20A and 20B are front elevational views showing a socket unit of another DC socket for comparison. Fig. 21A is a plan view showing a DC socket according to a second embodiment of the present invention. Fig. 21B is a front view thereof, Fig. 21C is a side view thereof, and Fig. 21D is a rear view thereof. Figure 22 is an exploded perspective view showing the DC socket of the second embodiment. 23A is a cross-sectional view taken along line AA of FIG. 21D, showing the DC socket of the second embodiment to which the electric wire is not connected, and FIG. 23B is a cross-sectional view taken along line AA of FIG. 21D, showing the connection of the electric wire. The DC socket of the second embodiment, and FIG. 23C is a side view showing the DC socket of the second embodiment to which the electric wires are connected. Fig. 24A is a plan view showing a DC socket according to a third embodiment of the present invention. Fig. 24B is a front view thereof, Fig. 24C is a side view thereof, and Fig. 24D is a rear view thereof. Figure 25 is an exploded perspective view showing the DC socket of the third embodiment. Figure 26A is a cross-sectional view taken along line BB of Figure 24D, showing the DC socket of the third embodiment to which the electric wire is not connected, and Figure 26B is a cross-sectional view taken along line BB of Figure 24D, showing the connection A DC socket of a third embodiment of the electrical wire. Fig. 27A is a plan view showing a 71 socket of a DC socket according to a fourth embodiment of the present invention, with 27B being a front view, Fig. 27C being a side view thereof, and Fig. 27D being a rear view thereof. Figure 28 is an exploded perspective view showing the DC socket of the fourth embodiment. Figure 29A is a cross-sectional view taken along line CC of Figure 27D, showing the DC socket of the fourth embodiment to which no wires are connected, and Figure 29B is a cross-sectional view taken along line CC of Figure 27D, showing the connection A DC socket of a fourth embodiment of the electric wire. Fig. 30A to Fig. 30D are front elevational views showing different modified examples of the socket unit of the dc socket of the fourth embodiment. Fig. 31A is a perspective view showing a modified example of the DC socket of the fourth embodiment', and Fig. 31B is a front view thereof. Figure 32A is a perspective view showing a dc socket according to a fifth embodiment of the present invention, and Figure 32B is a front view thereof. Figure 33A is a perspective view showing a DC socket of a fifth embodiment that has not been attached to a fixed frame, and Figure 33B is a perspective view showing a DC socket of a fifth embodiment attached to the fixed frame. Figure 34 is a front elevational view showing the dc socket of the fifth embodiment attached to the fixed frame. Figure 35 is an exploded perspective view showing the dc socket of the fifth embodiment. Fig. 36A is a perspective view showing the back structure of the dc socket of the fifth embodiment and Fig. 36B is a side view showing the side structure of the DC socket of the fifth embodiment. Fig. 37A is a perspective view showing the plug inserted into the DC socket of the fifth embodiment' and Fig. 37B is a front view thereof. 72 201117497 Figure 38 is a perspective view showing the insertion relationship between the DC socket and the plug of the fifth embodiment. Figure 39A is a cross-sectional view showing a cross-sectional structure of a DC socket of a fifth embodiment in which a plug has not been inserted into a socket, and Figure 39B is a cross-sectional view showing a cross-sectional structure in which the plug is inserted into the socket. Fig. 40 is a front elevational view showing the plug inserted into the DC socket A of the fifth embodiment in a green state. 41A to 41D are front elevational views showing different socket units of the DC socket of the fifth embodiment in which the shape varies depending on the supply voltage. 42A and 42B are front elevational views showing different socket units of a DC socket of a fifth embodiment whose shape varies depending on the kind of the power supply circuit. 43A to 43D are front views showing a modified example of a group of socket units of the DC outlet of the fifth embodiment. 44A to 44D are front elevational views showing another modified example of the socket unit of the DC outlet of the fifth embodiment. Fig. 45 is a front elevational view showing another modified example of the socket unit of the DC outlet of the fifth embodiment. 46A to 46C are front elevational views showing different socket units of the DC socket of the first embodiment in which the shape varies with the supply current. 47A and 47B are elevational views showing a socket unit of a conventional DC outlet. Figure 48A is a front elevational view of a conventional plug, and Figure 48B is a front elevational view of a socket unit of a conventional DC socket. Figure 49A and Figure 49B are elevational views of the 73 201117497 socket unit of the dc socket for comparison. 50A and 50B are front elevational views showing a socket unit of another DC socket for comparison. [Main component symbol description] 1 : Socket 1A: socket body 1B: pin receiver 1C: plug 1D: terminal 1E: locking magazine 1F: release button 2: mounting frame 2D: terminal 3: fastening plate 3a: opening 4; AC outlet 4a: AC outlet 5: Socket for coaxial cable 6: Modular socket for telephone line 7: Modular socket for LAN 8: Switch 10: Socket body 11: Wire insertion hole 12: Wire Inserting hole 74 201117497 13 : Side wall 14 : Cutting portion 15 : Wire insertion hole 20 : Cover 21 : Coupling frame mounting portion 22 : Socket unit 22a : Front surface 23 : Inserting groove 23 a : Inclined portion 23 b : Extending groove 23 c : concave Seat 23c': second extension groove 23d: protrusion 24: plug receiving portion 24a: front surface 24b: reference side 24c: lower side 25: pin insertion hole 25a: lower end portion 25A: power pin insertion hole 25B: ground pin insertion hole 26 : Ground pin insertion hole 26a : Ground pin insertion hole upper end portion 27 : Body storage portion of socket body ϋ 75 201117497 28 : Spraying lug 30 : Coupling frame 31 : Projection 40 : Opening 41 : Fixing portion 42 ; Connecting portion 43: first through hole 44: the first Two-way hole 45: device fixing portion 46: fixing hole 50: cable portion 51: plug body 51a: opposite surface 52: plug pin 52a: plug pin lower end portion 52b: grounding plug pin upper end portion 52A: plug pin 52B; ground Plug pin 53: surrounding wall 60: holder portion 61: terminal portion 62: pin resting member connecting portion 63: spring moving restricting portion 64: terminal portion 76 201117497 65: pressing member 65a: first pressing member 65b: second pressing member 66: collar portion 70: DC power distribution system 71: DC power supply unit 72: electric device 72a: information device 72b: lighting device 72c: main door system device 72d: home security device 73: DC circuit breaker 74: switchboard 75: main Circuit breaker 76: AC-DC converter 77: Cooperative control unit 77a: DC-DC converter 78: Decentralized power supply 78a: Secondary battery 78b: Solar battery 78c: Fuel cell 79: Main power supply 80: Terminal body part/indoor Item 81: Screw member 77 i: 201117497 81a: Head portion 81b of screw member: Shaft 82 of screw member: Pin resting member holding portion 83: Screw holding portion 84: Fixed 85: terminal body portion 85a: terminal body portion lower plate 100: plug 101: plug pin 102: surrounding wall 103: rib 110: socket unit 111: insertion groove 112: plug receiving portion 113: rib insertion Groove 114: Pin insertion hole 180: Dent 200: Socket unit 201: Inserting groove 202: Plug receiving portion 203: Pin insertion hole 300: Socket unit 301: Inserting groove 302: Plug receiving portion 78 201117497. 303: Pin Inserting hole 304: Grounding pin insertion hole 400: Comparing socket unit 401 · Inserting groove 402: Plug receiving portion 403: Pin insertion hole 404: Cutting groove 405: Cutting groove 406: Cutting groove 407: Cutting groove 408 : slit groove C1: center of plug receiving portion C2: center of surrounding wall CR1: center of surrounding wall CR2: center of insertion groove CR3: center of circular plug receiving portion CR4: center of plug receiving portion D1: pin insertion Distance between holes DR1: Distance between the insertion holes of the pins DR2: Outside diameter of the insertion groove DR3: Outside the insertion groove Size DR4: Outside the insertion groove Size DR5: Distance between the insertion holes of the pins DR6: Pins Ground pins inserted into the hole and distance between the holes 79 201117497 Η: Residential HI: receiving the horizontal portion of the plug width L: the wires W1: W2 of the strand conductors; electrically insulating skin sections Wdc: DC supply line / wire

Claims (1)

201117497 七、申請專利範圍： L —種直流電（DC)插座，插頭經調適以連接至所 $直流電插座以將Dc電力供應給所述插頭，所述插頭包 含具有圓桿形狀之多個插頭插腳；及用於包圍所述插頭插 腳之實質上四邊形形狀之包圍壁，所述DC插座包括： 。插座主體，其具有使所述插頭經調適而予以連接的插 座單元，所述插座單元設置於所述插座主體之正面中， 、其中所述插座單元包含：插人凹槽，其經形成為如在 所述插頭之插人方向上所見之平面圖中為大體矩形形狀， 包II·蝴適卩插人於所述插人日槽巾；及插職納 部分’其由所述插人凹槽包圍且形成為如在所述插頭之所 述***方向上所見之平面圖中為大體矩形形狀， ^所述插頭接納部分包含多個圓形插腳***孔，其沿充 田所述插頭接納部分之周邊側中之一側的參考側來配置， 所述插頭之所述插頭插腳經調適以***於所述插腳***孔 中，且 所述插座主體中包含··插腳接納件，其連接至***至 所述插腳***孔中的所述插頭插腳；端子，其電性連接至 所述插聊接納件；及鎖定彈簧，其經調適以將用於供應 電力之電線壓在所述端子上，所述料經由設置於_插 座主體上之電線***孔而***。 2·種直流電（Dc)插座，插頭經調適以連接至所 =直流電插座以將DC電力供應給所述插頭，所述插頭包 各具有圓桿·之多個;及用於包_述插頭插 201117497 L 腳之實質上四邊形形狀之包圍壁，所述DC插座包括·· 插座主體，其具有使所述插頭經調適而予以連接的所 述插座單元，㈣插解元設置於所賴座主體之正面中， 、其中所述插座單元包含：***凹槽，其形成為如在所 述插頭之***方向上所見之平面圖中為大體矩形形狀，所 述包圍壁經調適以***於所述***凹槽中；及插頭接納部 分，其由所述***凹槽包圍且形成為如在所述插頭之所述 ***方向上所見之平面圖中為大體矩形形狀， “所述插頭接納部分包含多個圓形插腳***孔，其沿充 當所述插頭接納部分之周邊财之—姻參相來酉^， 所述插頭之所述插頭插腳經調適以***於所述插腳***孔 中， 所述插座主體中包含：插腳接納件，其連接至***至 所述插腳***孔的所述插頭插腳；端子，其電性連接至所 述插腳接納件；及螺桿部件，其安裝於所述端子處，且在 上緊時經調適以將用於供應DC電力之電線麗在所述端子 j，所述電線經由設置於所述插座主體上之電線***孔而 插人。 山3.如申請專利範圍第2項所述之Dc插座，其中所述 2子中之每一者具備通孔；且所述螺桿部件中之每一者包 含頭部及轴，所述軸自所述頭部延伸且以職方式輕接至 所述插座主體，且在所述螺桿部件藉由上緊而固定至所述 =時’藉由所述軸之與所述頭部相對的端面而將所述電 線r之每一者壓在所述端子中之每—者上。 82 201117497 4.如申請專利範圍第2項所述之DC插座，其中所述 螺桿部件中之每一者包含頭部及自所述頭部延伸之轴，且 更包括配置於所述插座主體内且以螺紋方式耦接至所述螺 桿部件之所述軸的固定件’所述端子中之每一者在所述頭 部與所述固定件中之每一者之間具備通孔，所述軸經由所 述通孔而***，且所述固定件中之每一者經配置以在所述 螺桿部件上緊時朝著所述端子中之每一者而移動以將所述 電線中之每一者壓在所述端子中之每一者上。 5· —種直流電（DC)插座，插頭經調適以連接至所 述直流電插座以將DC電力供應給所述插頭，所述插頭包 3具有圓桿形狀之多個插頭插腳；及用於包圍所述插頭插 腳之實質上四邊形形狀之包圍壁，所述Dc插座包括： 其中所述插座單元包含：***凹槽，201117497 VII. Patent application scope: L - a direct current (DC) socket, the plug is adapted to be connected to a DC power socket to supply DC power to the plug, the plug comprising a plurality of plug pins having a round rod shape; And a surrounding wall for surrounding a substantially quadrilateral shape of the plug pin, the DC socket comprising: a socket body having a socket unit for adapting the plug to be connected, the socket unit being disposed in a front surface of the socket body, wherein the socket unit comprises: an insertion groove formed to be In the plan view seen in the direction in which the plug is inserted, the shape is a generally rectangular shape, and the package is inserted into the slot of the insertion day; and the portion of the insertion is surrounded by the insertion groove. And forming a substantially rectangular shape in a plan view as seen in the insertion direction of the plug, the plug receiving portion includes a plurality of circular pin insertion holes along the peripheral side of the plug receiving portion of the field a reference side of one of the sides, the plug pin of the plug being adapted to be inserted into the pin insertion hole, and the socket body includes a pin receiving member coupled to the insertion a pin inserted into the hole in the hole; a terminal electrically connected to the interposer receiving member; and a locking spring adapted to press a wire for supplying electric power on the terminal, _ Via a plug disposed in the electric wire insertion hole of the base body is inserted. 2. A direct current (Dc) socket, the plug being adapted to be connected to the = DC outlet to supply DC power to the plug, the plug packs each having a plurality of round rods; and 201117497 The surrounding wall of the substantially quadrangular shape of the L foot, the DC socket comprises: a socket body having the socket unit adapted to be connected to the plug, and (4) the plug element is disposed in the body of the seat In the front side, wherein the socket unit comprises: an insertion groove formed in a substantially rectangular shape in a plan view as seen in an insertion direction of the plug, the surrounding wall being adapted to be inserted into the insertion groove And a plug receiving portion surrounded by the insertion groove and formed into a substantially rectangular shape in a plan view as seen in the insertion direction of the plug, "the plug receiving portion includes a plurality of circular pins Inserting a hole along the periphery of the plug receiving portion, the plug pin of the plug being adapted to be inserted into the pin insertion hole, The socket body includes: a pin receiving member connected to the plug pin inserted into the pin insertion hole; a terminal electrically connected to the pin receiving member; and a screw member mounted at the terminal And when tightened, the wire for supplying DC power is adapted to be inserted into the terminal j, and the wire is inserted through a wire insertion hole provided in the socket body. The Dc socket of claim 2, wherein each of the two sub-ports has a through hole; and each of the screw members includes a head and a shaft, the shaft extending from the head and serving Lightly connecting to the socket body, and when the screw member is fixed to the = by tightening, 'each of the wires r by the end face of the shaft opposite to the head The DC socket of claim 2, wherein each of the screw members includes a head and extends from the head. a shaft, and further comprising a thread disposed in the socket body and threaded a fixing member coupled to the shaft of the screw member, each of the terminals having a through hole between each of the head and the fixing member, the shaft passing through Inserting through holes, and each of the fasteners is configured to move toward each of the terminals when the screw member is tightened to press each of the wires On each of the terminals. 5. A direct current (DC) socket adapted to be connected to the direct current outlet to supply DC power to the plug, the plug package 3 having a round bar shape a plurality of plug pins; and a surrounding wall for surrounding a substantially quadrangular shape of the plug pins, the Dc socket comprising: wherein the socket unit comprises: an insertion groove, 分，其由所述***凹槽包圍 时插座主體’其具有使所述__適而抑連接的插 座k，所述插座單元設置於所賴座主體之正面中， I— ， ，·，/外々Ά 厂 ^上所見之平面圖中為大體矩形形狀，a socket body having a socket k that is adapted to be connected to the socket when the bracket is surrounded by the insertion groove, the socket unit being disposed in the front surface of the body of the seat, I_, ,·, / The floor plan seen on the factory is generally rectangular in shape. 所述插座主體中包含： :插腳接納件，其連接至***至 '•播入凹槽，其形成為如在所 平面圖中為大體矩形形狀，所 述***凹槽中；及插頭接納部 且形成為如在所述插頭之所述 83 201117497 所述插腳***孔的所述插頭插腳；端子，其電性連接至所 述插腳接納件且部分暴露在插座主體外部。 6. 如申請專利範圍第1至5項中任一項所述之〇(：插 座，其中所述插頭接納部分及所述***凹槽中之至少一者 自其前面觀看時的形狀是視供應電壓或供應電流之種類而 部分地改變。 7. 如申請專利範圍第6項所述之DC插座，其中所述 ***凹槽自前面觀看時之所述形狀會改變，使得與所述插 頭接納部分自前面觀看時具有實質四邊形形狀的情況相 比，所述插頭接納部分之面積減小。 8. 如申請專利範圍第7項所述之DC插座，其中所述 ***凹槽自前面觀看時之所述形狀視所述供應電壓或所述 供應電流之所述種類而不同地改變，所述改變是藉由視所 述供應電壓或所述供應電流之所述種類而切割所述插頭接 納部分之所述實質四邊形形狀的至少一角及沿所述插頭接 納部分之外周邊形成所述***凹槽來進行。 9. 如申請專利範圍第6項所述之DC插座，其中形狀 視所述供應電壓或所述供應電流之所述種類而改變的所述 ***凹槽之一部分距所述參考側之相對侧較距所述參考側 更近。 > 10. 如申請專利範圍第6項所述之DC插座，其中所 述***凹槽自前面觀看時之所述形狀會改變，使得與所述 插頭接納部分自前面觀看時具有所述實質四邊形形狀的情 況相比’所述插頭接納部分之面積增加。 84 201117497The socket body includes: a pin receiving member coupled to the insertion into the '•casting groove, which is formed into a substantially rectangular shape as in plan view, the insertion groove; and the plug receiving portion and formed The plug pin of the pin insertion hole as described in the above-mentioned plug 83 201117497; the terminal is electrically connected to the pin receiver and partially exposed outside the socket body. 6. The 〇 (: socket, wherein the shape of at least one of the plug receiving portion and the insertion groove when viewed from the front thereof is a supply according to any one of claims 1 to 5; The DC socket of claim 6, wherein the shape of the insertion groove changes when viewed from the front, so that the plug receiving portion is changed The area of the plug receiving portion is reduced as compared with the case of having a substantially quadrangular shape when viewed from the front. 8. The DC socket of claim 7, wherein the insertion groove is viewed from the front The shape is varied differently depending on the kind of the supply voltage or the supply current, the change being by cutting the plug receiving portion depending on the kind of the supply voltage or the supply current The at least one corner of the substantially quadrangular shape is formed by forming the insertion groove along the outer periphery of the plug receiving portion. 9. The DC socket according to claim 6, wherein the shape is One portion of the insertion groove that changes in the supply voltage or the kind of the supply current is closer to the opposite side than the reference side than the reference side. > 10. As claimed in claim 6 The DC socket, wherein the shape of the insertion groove when viewed from the front is changed such that the plug receiving portion is compared with a case where the plug receiving portion has the substantially quadrangular shape when viewed from the front. The area has increased. 84 201117497 11. 如申請專利範圍第6項所述之DC插座，其中所 述***凹槽自前面觀看時之所述形狀是藉由形成有自所述 ***凹槽延伸之延伸凹槽來部分地改變。 12. 如申請專利範圍第11項所述之DC插座，其中所 述延伸凹槽是藉由使所述***凹槽之一部分延伸至所述插 頭接納部分中來形成。 13. 如申請專利範圍第11項所述之DC插座，其中所 述延伸凹槽設置於距所述插頭接納部分之所述參考側之所 述相對側較距所述參考側更近的位置處。 14. 如申請專利範圍第11項所述之DC插座，其中所 述延伸凹槽藉由使所述***凹槽之一部分向外延伸而形成 於所述插座主體之所述正面上。 15，如申請專利範圍第1至5項中任一項所述之dc 插座’其中所述插頭接納部分及所述***凹槽之至少一者 自其前面觀看時的形狀是視充當電力供應源之電力供應電 路之種類而部分地改變。 16. 如申請專利範圍第15項所述之dc插座，其中所 述***凹槽自前面觀看時之所述形狀會改變，使得與所述 插頭接納部分自前面觀看時具有所述實質四邊形形狀的情 況相比，所述插頭接納部分之面積減小。 17. 如申請專利範圍第16項所述之DC插座，其中所 述***凹槽自前面觀看時之所述形狀視所述電力供應電路 之所述種類而不同地改變，所述改變是藉由視所述電力供 應電路之所述種類而切割所述插頭接納部分自 前面觀看時 85 201117497 之所述實質四邊形形狀的至少一角及沿所述插頭接納部分 之外周邊形成所述***凹槽來進行。 18. 如申請專利範圍第15項所述之DC插座，其中形 狀視所述電力供應電路之所述種類而改變的所述***凹槽 之一部分距所述參考側之所述相對側較距所述參考側更 近。 19. 如申請專利範圍第15項所述之DC插座，其中所 述***凹槽自前面觀看時之所述形狀會改變，使得與所述 插頭接納部分自前面觀看時具有所述實質四邊形形狀的情 況相比，所述插頭接納部分之面積增加。 20. 如申請專利範圍第15項所述之DC插座，其中所 述***凹槽自前©觀看時之職形狀是藉由形成有自、所述 ***凹槽延伸之延伸凹槽來部分地改變。 21_如申請專利範圍第20項所述之DC插座，其中所 述延伸凹槽是藉由使所述插人凹槽之—部分延伸輯述插 頭接納部分中來形成。 22·如申請專利範圍第2〇項所述之DC插座，苴中所 述延伸凹槽設置於距所述_接納部分之麟參考側之所 述相對侧較距所述參考側更近的位置處。 23.如申睛專利範圍帛2〇項所述之Dc插座，盆中所 述延伸凹槽藉由使所述插人凹槽之—部分向外延伸㈣成 於所述插座主體之所述正面上。 %如申請專項中任—項所述之沉 插座’其巾所賴人凹槽自前續看時之所述雜僅在所 86 201117497 述電力供應電路人 改變。稱“全特低電壓（SELV)電路時才部分地 25. 如申請專利範圍第1至5項中任一項所述之DC 插座，其令所述插頭之所述插頭插腳包含接地插腳，且所 述插頭接納部分之所述插腳***孔包含***有所述插頭之 所述接地插腳的接地插腳***孔。 26. 如申請專利範圍第25項所述之DC插座，其中所 述接地插腳***孔經偏離設置成相對於所述參考側而較接 近於所述相對側。 8711. The DC socket of claim 6, wherein the shape of the insertion groove when viewed from the front is partially changed by forming an extending groove extending from the insertion groove. 12. The DC socket of claim 11, wherein the extension groove is formed by extending a portion of the insertion groove into the plug receiving portion. 13. The DC socket of claim 11, wherein the extension groove is disposed at a position closer to the reference side from the opposite side of the reference side of the plug receiving portion than the reference side . 14. The DC socket of claim 11, wherein the extension groove is formed on the front surface of the socket body by extending a portion of the insertion groove outwardly. The dc socket of any one of claims 1 to 5, wherein at least one of the plug receiving portion and the insertion groove is viewed from a front side thereof as a power supply source The power supply circuit is partially changed in kind. 16. The dc socket of claim 15, wherein the shape of the insertion groove when viewed from the front is changed such that the plug receiving portion has the substantially quadrilateral shape when viewed from the front. In contrast, the area of the plug receiving portion is reduced. 17. The DC socket of claim 16, wherein the shape of the insertion groove when viewed from the front is different depending on the kind of the power supply circuit, the change is by Depending on the kind of the power supply circuit, the plug receiving portion is cut at least one corner of the substantially quadrangular shape of 85 201117497 when viewed from the front and the insertion groove is formed along the outer periphery of the plug receiving portion. . 18. The DC socket of claim 15, wherein a portion of the insertion groove whose shape changes depending on the kind of the power supply circuit is closer to the opposite side of the reference side The reference side is closer. 19. The DC socket of claim 15, wherein the shape of the insertion groove when viewed from the front is changed such that the plug receiving portion has the substantially quadrilateral shape when viewed from the front. In contrast, the area of the plug receiving portion is increased. 20. The DC socket of claim 15, wherein the insertion groove is partially changed from the front view when viewed from the front to the extension groove formed by the insertion groove. The DC socket of claim 20, wherein the extension groove is formed by partially extending the insertion groove into the plug receiving portion. The DC socket of claim 2, wherein the extending groove is disposed at a position closer to the opposite side than the reference side from a reference side of the collar portion of the receiving portion At the office. 23. The Dc socket of claim 2, wherein the extending groove in the basin is formed by extending a portion of the insertion groove to the front side of the socket body. on. % The application of the special item in the item---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- A DC socket according to any one of claims 1 to 5, wherein the plug pin of the plug includes a grounding pin, and The pin insertion hole of the plug receiving portion includes a ground pin insertion hole into which the ground pin of the plug is inserted. 26. The DC socket according to claim 25, wherein the ground pin insertion hole The deviation is set closer to the opposite side with respect to the reference side.
TW99126246A 2009-08-07 2010-08-06 Direct current outlet TWI424636B (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2009185057A JP5308271B2 (en) 2009-08-07 2009-08-07 DC outlet
JP2009185280A JP5319448B2 (en) 2009-08-07 2009-08-07 DC outlet
JP2009185060A JP5336975B2 (en) 2009-08-07 2009-08-07 DC outlet
JP2009185059A JP5308272B2 (en) 2009-08-07 2009-08-07 DC outlet
JP2009219725A JP5319470B2 (en) 2009-09-24 2009-09-24 DC outlet
JP2009219727A JP5319472B2 (en) 2009-09-24 2009-09-24 DC outlet
JP2009219726A JP5319471B2 (en) 2009-09-24 2009-09-24 DC outlet
JP2009266751A JP5361678B2 (en) 2009-11-24 2009-11-24 Outlet

Publications (2)

Publication Number Publication Date
TW201117497A true TW201117497A (en) 2011-05-16
TWI424636B TWI424636B (en) 2014-01-21

Family

ID=43543983

Family Applications (1)

Application Number Title Priority Date Filing Date
TW99126246A TWI424636B (en) 2009-08-07 2010-08-06 Direct current outlet

Country Status (3)

Country Link
CN (1) CN102484339A (en)
TW (1) TWI424636B (en)
WO (1) WO2011015927A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI608509B (en) * 2014-07-02 2017-12-11 Hitachi Industrial Equipment Systems Co Ltd Reversible DC circuit breaker and monitoring method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2545236Y2 (en) * 1990-07-27 1997-08-25 ミツミ電機株式会社 Connector plug
CN2300199Y (en) * 1997-03-31 1998-12-09 徐昌美 Two-pole socket function element
JPH11273778A (en) * 1998-03-26 1999-10-08 Matsushita Electric Works Ltd Wire harness connector
CN2384332Y (en) * 1999-06-01 2000-06-21 李秋山 Electric outlet
TWM249302U (en) * 2003-08-22 2004-11-01 P Two Ind Inc Structure improvement of DC power source receptacle
CN2904381Y (en) * 2006-03-30 2007-05-23 刘弘君 Multi-plugging position wall socket
JP2008108675A (en) * 2006-10-27 2008-05-08 Toshiba Corp Plug
JP2009158212A (en) * 2007-12-25 2009-07-16 Panasonic Electric Works Co Ltd Power distribution cable, dc plug socket, and tool for power distribution cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI608509B (en) * 2014-07-02 2017-12-11 Hitachi Industrial Equipment Systems Co Ltd Reversible DC circuit breaker and monitoring method

Also Published As

Publication number Publication date
TWI424636B (en) 2014-01-21
CN102484339A (en) 2012-05-30
WO2011015927A1 (en) 2011-02-10

Similar Documents

Publication Publication Date Title
TWI424633B (en) Plug receptacle
KR101862667B1 (en) socket apparatus with earthing plug
TWI571019B (en) Power cord
JP4915975B2 (en) DC outlet
JP2011113679A (en) Blade rest member and receptacle with this
TWI412189B (en) Plug
TW201117497A (en) Direct current outlet
JP5319471B2 (en) DC outlet
JP5319472B2 (en) DC outlet
JP5330926B2 (en) Plug
JP5308272B2 (en) DC outlet
JP5336975B2 (en) DC outlet
JP5351697B2 (en) Wiring device
JP2010055896A (en) Receptacle, plug, and wiring device
JP5443890B2 (en) DC outlet
JP2011040234A (en) Dc outlet
JP5319470B2 (en) DC outlet
JP5330949B2 (en) Plug
JP2011070956A (en) Attachment plug
JP2011040233A (en) Dc outlet
TWI438978B (en) Receptacle
JP5650913B2 (en) Retaining plug
JP5361678B2 (en) Outlet
JP3161715U (en) Flat cable connector
JP2011113805A (en) Receptacle

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees