1236786 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於由嵌合連接的雌、雄一對電連接器所構 成的具備鎖緊機構之電連接器，詳細地說是關於由··具有 連接著複數電線的插座接觸器的插座連接器；及’配裝在 印刷配線板上可將上述插座連接器插脫自如嵌合連接的基 座連接器所構成的具備鎖緊機構之電連接器° 【先前技術】 此種具備鎖緊機構之電連接器，已知有例如：日本實 開昭5 4- 1 43 97號公報、美國專利第4,008,94 1號及美國專 利第4,376,565號說明書及圖面等所揭示，其構成爲在一 方的連接器殻兩側面上設有鎖緊臂，將設在該鎖緊臂前端 部上的鉤子卡合鎖緊於突設在另一方的連接器殼兩側面上 的卡止部，以按壓設在上述鎖緊臂後端部上的按壓操作部 來使上述鉤子從上述卡止部脫離而解除鎖緊。 【發明內容】 [發明欲解決之課題] 然而，如此般具備鎖緊機構之電連接器，當有不知所 以然的外力作用在上述鎖緊臂上時，上述鉤子的卡合就會 脫離，鎖緊恐怕會受到意外性解除。 另一方面，此種電連接器當中，尤其是針對高電壓應 對型的連接器，爲確保通電時的安全性就會有上述鎖緊臂 1236786 (2) 的卡合需確實的要求。 本發明是有鑑於上述問題而爲的發明，其目的在於提 供一種具備鎖緊機構之電連接器，其鎖緊臂的卡合即使脫 離’也能有效防止鎖緊受到意外性解除。 [用以解決課題之手段] 爲達成上述目的，本發明的特徵爲：其是由嵌合連接 的雌、雄一對電連接器所構成；在一方的連接器殼的兩側 面上，中介著可彈性變形的支撐片一體設有一對從其前端 部往後方延伸的鎖緊臂；上述鎖緊臂具有往外側方突出的 卡止凸部；另一方的連接器殼，具有上述一方連接器殻和 上述兩鎖緊臂可嵌合被收容在內的空間部，在該空間部的 內壁面設有上述卡止凸部要卡合的卡止部。 最好是構成爲：在上述一方的連接器殼的兩側面上， 突設有夾著上述鎖緊臂往外側方突出的防護片，於嵌合連 接時，上述防護片會抵接上述另一方的連接器殼前端面， 用目視就可確定嵌合連接狀態。 【實施方式】 以下根據圖面對本發明之最佳實施形態進行說明。 第1圖至第3圖，是表示著根據本發明構成一方連接 器的插座連接器1(參考第8圖及第9圖）的連接器殼， 即插座殻2。該插座殻2，是由絕緣性塑膠材料成型爲輪 廓形狀是扁平橫向長的矩形六面體，在兩端部平行設有接 -5- 1236786 (3) 觸器收容室3、3可各別收容已連接著電線4 1端部的插座 接觸器4 2 (參考第9圖）。如此般地將2個接觸器收容 室3、3大隔離，其原因是爲要使其可做爲高電壓用連接 器使用而將其構成爲插座接觸器42、42間的空間距離及 沿面漏電距離變大。於各收容室3、3內側壁設有卡合著 插座接觸器42的矛部43將插座接觸器42保持固定在收 容室3內的卡止凸部4。此外在各收容室3、3前壁設有 開口 5可***本發明另一連接器之基座連接器2 1的插銷 接觸器2 8。再者，鄰接著接觸器收容室3、3設有從插座 殼2前端面延伸至中央部位的2個缺口部6、6。該缺口 部6、6是爲卡合設在對方側下述之基座連接器2 1上的隔 間片25、25而設置，爲要防止逆嵌合其下半部是形成爲 具寬幅廣的階梯部7形狀。 於插座殼2的兩側面8、8上，中介著連設在該插座 殻2前端部可彈性變形的支撐片9、9配設有一對從插座 殼2前端部往斜外方向延伸至後端部的鎖緊臂1 〇、1 0。 各鎖緊臂10具有比插座殼2高度（厚度）還小的寬度， 於其中間部位外側面上，突設有往外側方突出的2個卡止 凸部1 1、1 1。此外，於各鎖緊臂1 0後端部上，設有可將 鎖緊臂1 0往內側位移的按壓操作部1 2。再者，於插座殻 2的兩側面8、8上，在各鎖緊臂1 0後側部位，即在設有 卡止凸部1 1、1 1處還後側的部位上突設有夾著鎖緊臂1 〇 往外側方突出的一對防護片1 3、1 3。該防護片1 3、1 3， 其功能如下：可防止其他的電線或其他雜物纒住鎖緊臂 -6 - (4) 1236786 ϊ ο ’或可防止外力作用在鎖緊臂1 0上；用目視就可確認 與下述另一方連接器的基座連接器2 1的嵌合連接狀態。 弟4圖至弟7圖’是表不者根據本發明構成另一方連 接器的基座連接器2 1。該基座連接器2 1的連接器殼，即 基座殼22，是形成爲前面側是開口的扁平箱形狀，具有 上述插座連接器的插座殼2和兩鎖緊臂1 〇、1 〇前側部份 可嵌合被收容在內的空間部23。於該空間部23中形成著 要卡合於插座殼2缺口部6從後壁24突出成一體的2個 隔間片2 5、2 5，且在空間部2 3的兩內測壁2 6、2 6前端 部份設有兩鎖緊臂1 〇、1 〇的卡止凸部1 1、1 1所要卡合的 卡止部27、27。此外，於兩隔間片25、25外側部位上配 設有貫穿後壁24的插銷接觸器28、28。兩插銷接觸器 28、28的接觸銷部29、29，是在空間部23內和基座殼 22平行朝前端開口部23a突出，往後壁24突出的引入部 3 0、3 0是各自往外側橫向彎折延伸’又往下方彎折成L 字形對下述印刷配線板4 0 (參考第8圖及第9圖）形成 有焊接部 30a、30a。再者’藉由從基座殻22的後壁24 上下兩端往後方突出的延長壁3 1、3 2以及於該延長壁 3 1、3 2間隔著橫向間隔連設著的複數隔間片3 3，使兩插 銷接觸器2 8、2 8的引入部3 G、3 0間可確保有足夠的沿面 漏電距離和空間距離以提高耐電壓性’使其形成爲能夠防 止高電壓造成障礙的構成。圖中圖號34，是表示嵌裝在 基座殼22前端部兩側壁上的加強鐵件。 第8圖及第9圖’是表示著具有上述構成之插座接觸 -7- 1236786 (5) 器和基座連接器2 1的使用狀態。插座連接器1 ’是構成 爲連接在電線4 1端部上的插座接觸器4 2是***在插座殼 2的接觸收容室3內，使插座接觸器4 2的矛部4 3是被卡 止於卡止凸部4使其保持固定在收容室3內。另一方面， 基座連接器2 1，是將插銷接觸器2 8、2 8的焊接部3 0 a、 3 0 a和加強鐵件3 4焊接在印刷配線板4 0上使其配裝在印 刷配線板4 0表面。 當將插座連接器1的插座殼2及兩鎖緊臂1〇、1〇前 側部份通過基座殼2 2的前端開口部2 3 a嵌插在空間部2 3 內時，插座殻2的缺口部6、6會卡合於隔間片25、25而 受到誘導，插銷接觸器28、28的接觸銷部29、29會從開 口 5、5進入收容室3、3內，使其嵌合於插座接觸器42 後接通電源。此時，兩鎖緊臂1 〇、1 〇是往內側，即是往 插座殻2的兩側面8、8側邊彈性變形邊被***。接著， 當基座殼22和兩鎖緊臂10、10被嵌插成正確的嵌合連接 位置時，兩鎖緊臂1 0、1 〇的卡止凸部1 1、1 1會越過前端 開口部23a側緣部份進入空間部23內，於同時以兩鎖緊 臂1 0、1 0的彈性復原力使卡止凸部1 1、1 1卡合於基座殻 22的卡止部27、27，使基座殼22和插座殼2被鎖緊。在 這同時插座殼2的防護片1 3、1 3會抵接於基座殻22前端 面，使兩連接器1、2 1的嵌合連接狀態得以用目視確認。 在如此般之兩連接器1、2 1爲嵌合連接的狀態下，兩鎖緊 臂1 0、1 0的卡止凸部1 1、1 i是會在基座殼22的空間部 23內和卡止部27、27卡合著，所以因意外性外力作用造 -8 - 1236786 (6) 成卡止凸部1 1、1 1從卡止部2 7、2 7脫離而使鎖緊解除的 危險性就會非常少。此外，藉由位置成夾著各鎖緊臂10 的兩防護片1 3、1 3，能有效防止意外性外力作用於鎖緊 臂1 〇上。 其次，當要從基座連接器2 1拔掉插座連接器1時， 是用手指夾住兩鎖緊臂1 0、1 0的按壓操作部1 2、1 2使其 往兩側面8、8側彈性變形，將卡止凸部11、1 1從卡止部 27、27脫離而解除鎖緊後，把兩鎖緊臂1 〇、1 〇往後方移 動將插座殼2從基座殼22抽出。 另，當錯誤地要將插座連接器1的插座殼2以上下朝 向相反的姿勢***基座連接器2 1的空間部23內時，缺口 部6、6的階梯部7、7會頂到隔間片2 5、2 5前端面而阻 止插座殼2進入，因此就可事先防止逆嵌合發生。 [發明效果] 如以上所說明，根據本發明時，因設置在一方的連接 器殻（插座殼）兩側面上的鎖緊臂卡止凸部會卡合於設置 在另一方的連接器殼（基座殻）空間部內壁面上的卡止 部，使兩連接器殻被鎖緊，所以極少會發生因外力而造成 上述卡止凸部脫離上述卡止部使鎖緊被意外性解除。 此外，由於可藉由位置成夾著各鎖緊臂的防護片來阻 止外力作用於上述鎖緊臂上’所以能有效防止鎖緊受到意 外性解除。 1236786 (7) 【圖式簡單說明】 第1圖爲根據本發明構成一方連接器（插座連接器） 的連接器殼透視圖。 第2圖爲根據本發明構成一方連接器（插座連接器） 的連接器殼正面圖。 第3圖爲第2圖中3 _ 3剖線的剖面圖。 第4圖爲根據本發明構成另一方連接器（基座連接 器）平面圖。 第5圖爲根據本發明構成另一方連接器（基座連接 器）正面圖。 第6圖爲第5圖中6 - 6剖線的剖面圖。 第7圖爲第4圖中7 -7剖線的剖面圖。 第8圖爲表示根據本發明之兩連接器嵌合連接狀態的 透視圖。 第9圖爲第8圖主要部份的橫剖面圖。 [圖號說明] 1 :插座連接器 2 :插座殻 3 ··接觸器收容室 8 :兩側面 9 :支撐片 1 〇 :鎖緊臂 1 1 :卡止凸部 -10- 1236786 (8) 1 2 :按壓操作部 1 3 :防護片 2 1 :基座連接器 22 :基座殼 2 3 :空間部 2 3 a :開口端部 2 4 :後壁 2 6 :內側壁 2 7 :卡止部 2 8 :插銷接觸器 40 :印刷配線板 41 :電線 4 2 :插座接觸器 43 :矛部1236786 (1) 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to an electrical connector provided with a locking mechanism, which is composed of a male and female electrical connector that is fitted and connected. A socket connector having a socket contactor to which a plurality of wires are connected; and a base connector provided with a locking mechanism, which is mounted on a printed wiring board and can be detachably fitted into the socket connector Connector [Prior art] Such electrical connectors having a locking mechanism are known, for example, Japanese Utility Model Publication No. 5 4- 1 43 97, U.S. Patent No. 4,008,94 1 and U.S. Patent No. 4,376,565 As disclosed in the description and drawings, the structure is provided with locking arms on both sides of one connector housing, and the hook provided on the front end of the locking arm is engaged and locked to the connection protruding on the other side. The locking portions on both sides of the housing are configured to press the pressing operation portion provided on the rear end portion of the locking arm to release the hook from the locking portion and release the locking. [Summary of the Invention] [Problems to be Solved by the Invention] However, for an electrical connector having a locking mechanism like this, when an unknown external force acts on the locking arm, the engagement of the hook is released and locked. I'm afraid it will be accidentally lifted. On the other hand, among such electrical connectors, especially for high-voltage compatible connectors, the above-mentioned engagement of the locking arm 1236786 (2) is required to ensure safety during power-on. The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide an electrical connector having a locking mechanism, which can effectively prevent the locking from being accidentally released even when the locking arm is disengaged. [Means for solving the problem] To achieve the above object, the present invention is characterized in that it is composed of a female and male electrical connector that is fitted and connected; on both sides of one connector housing, an intermediate The elastically deformed supporting piece is integrally provided with a pair of locking arms extending rearwardly from the front end portion thereof; the locking arm has a locking convex portion protruding outward; the other connector housing has the above-mentioned one connector housing and The two locking arms can be fitted into a space portion to be accommodated therein, and an inner wall surface of the space portion is provided with a locking portion to which the locking convex portion is to be engaged. Preferably, it is configured that, on both sides of the one connector housing, protective pieces protruding outwardly with the locking arm sandwiched therebetween are protruded, and the protective piece abuts against the other side during the mating connection. The front end surface of the connector housing can be determined by visual inspection. [Embodiment] Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. Figures 1 to 3 show the connector shells of the socket connector 1 (refer to Figures 8 and 9) constituting one connector according to the present invention, that is, the socket shell 2. The socket housing 2 is formed of an insulating plastic material into a rectangular hexahedron whose outline shape is flat and horizontally long, and -5- 1236786 (3) contactor accommodation chambers 3 and 3 can be separately arranged at both ends. Hold the socket contactor 4 2 at the end of the electric wire 41 (refer to Figure 9). The reason why the two contactor accommodation chambers 3 and 3 are largely isolated in this manner is to make them a high-voltage connector and constitute the space distance between the receptacle contactors 42 and creepage. The distance becomes larger. A spear portion 43 that engages the socket contactor 42 is provided on the inner side wall of each of the storage chambers 3 and 3, and the socket contactor 42 is held and fixed in the receiving chamber 3 by a locking projection 4. In addition, an opening 5 is provided in the front wall of each of the accommodation chambers 3 and 3, and a pin contactor 28 of the base connector 21 of the other connector of the present invention can be inserted. Adjacent to the contactor accommodation chambers 3, 3 are provided with two notch portions 6, 6 extending from the front end surface of the socket housing 2 to the central portion. The notches 6 and 6 are provided for engaging the partition pieces 25 and 25 provided on the base connector 21 described below on the counterpart side, and the lower half is formed to have a wide width to prevent reverse fitting. Wide stepped portion 7 shape. On both sides 8 and 8 of the socket shell 2, a pair of support pieces 9 and 9 which are elastically deformable and connected to the front end of the socket shell 2 are provided with a pair extending from the front end of the socket shell 2 obliquely outward to the rear end. The locking arms 10, 10 of the part. Each locking arm 10 has a width smaller than the height (thickness) of the socket housing 2, and two locking protrusions 1 1 and 1 1 protruding outwardly are provided on the outer surface of the middle portion. In addition, a pressing operation portion 12 capable of displacing the locking arm 10 inward is provided on the rear end portion of each locking arm 10. Furthermore, clips are protruded on the two side surfaces 8 and 8 of the socket housing 2 on the rear side of each locking arm 10, that is, on the rear side of the locking protrusions 11 and 11. A pair of protective pieces 1 3, 1 3 protruding toward the outer side of the locking arm 10. The protective sheet 1 3, 1 3 has the following functions: it can prevent other wires or other debris from catching the locking arm -6-(4) 1236786 ϊ ο 'or can prevent external forces from acting on the locking arm 10; The state of mating connection with the base connector 21 of the other connector described below can be confirmed visually. Fig. 4 to Fig. 7 'show the base connector 21 which constitutes the other connector according to the present invention. The connector shell of the base connector 21, that is, the base shell 22, is formed in the shape of a flat box with an open front side, and the socket shell 2 having the above-mentioned socket connector and the two locking arms 10, 1 front side A part can be fitted into the space portion 23 to be contained therein. Two space pieces 2 5 and 2 are formed in the space portion 23 to be engaged with the notch portion 6 of the socket housing 2 and protrude from the rear wall 24. The two inner measuring walls 2 6 are formed in the space portion 23. The front end portions of the two and six are provided with two locking arms 10 and 10, and the locking convex portions 11 and 11 to be engaged with the locking convex portions 11 and 11. In addition, latch contactors 28, 28 penetrating through the rear wall 24 are provided on the outer portions of the two compartment pieces 25, 25. The contact pin portions 29 and 29 of the two pin contactors 28 and 28 protrude parallel to the base case 22 toward the front opening 23a in the space portion 23, and the lead-in portions 30 and 30 that protrude to the rear wall 24 respectively. The outer side is bent and extended 'and bent downward to form an L-shape. Welding portions 30a and 30a are formed on the following printed wiring board 40 (refer to FIGS. 8 and 9). Furthermore, 'the extension walls 3 1, 3 2 protruding rearward from the upper and lower ends of the rear wall 24 of the base case 22, and a plurality of compartment pieces connected to the extension walls 3 1, 3 2 with a horizontal interval therebetween. 3 3, Make sure that there are sufficient creepage distances and space distances between the lead-in portions of the two pin contactors 2 8 and 2 8 to increase the withstand voltage. 'It is formed to prevent obstacles caused by high voltage. Make up. Reference numeral 34 in the figure indicates a reinforcing iron member embedded on both side walls of the front end portion of the base case 22. Fig. 8 and Fig. 9 'show the state of use of the socket contact -7- 1236786 (5) connector and base connector 21 having the above structure. The socket connector 1 ′ is a socket contactor 4 configured to be connected to the end of the electric wire 41, and is inserted into the contact accommodation chamber 3 of the socket housing 2 so that the spear portion 4 3 of the socket contactor 4 2 is locked. The locking convex portion 4 is held and fixed in the accommodation room 3. On the other hand, the base connector 21 is formed by welding the soldering portions 3 0 a and 3 0 a of the pin contactors 2 8 and 2 8 and the reinforcing iron piece 3 4 to the printed wiring board 40 so as to be mounted on the printed wiring board 40. 40 surface of printed wiring board. When inserting the socket housing 2 of the socket connector 1 and the two locking arms 10 and 10 through the front opening 2 3 a of the base housing 2 2 into the space portion 2 3, the The notches 6 and 6 are engaged with the compartment pieces 25 and 25 and induced, and the contact pin portions 29 and 29 of the pin contactors 28 and 28 enter the accommodation chambers 3 and 3 through the openings 5 and 5 to fit them Turn on the power after the socket contactor 42. At this time, the two locking arms 10 and 10 are inserted to the inside, that is, to the sides 8 and 8 of the socket housing 2 while being elastically deformed. Then, when the base shell 22 and the two locking arms 10 and 10 are inserted into the correct fitting connection position, the locking protrusions 11 and 11 of the two locking arms 10 and 10 will pass through the front opening. The side edge portion of the portion 23 a enters the space portion 23, and the locking convex portions 1 1 and 1 1 are engaged with the locking portion 27 of the base case 22 with the elastic restoring force of the two locking arms 10 and 10 at the same time. , 27, so that the base shell 22 and the socket shell 2 are locked. At this time, the protective sheets 1 3, 1 3 of the socket shell 2 will abut against the front end surface of the base shell 22, so that the mating connection state of the two connectors 1, 21 can be visually confirmed. In such a state that the two connectors 1 and 2 1 are fitted and connected, the locking convex portions 1 1 and 1 i of the two locking arms 10 and 10 will be in the space portion 23 of the base case 22 It is engaged with the locking parts 27 and 27, so it is made by an unexpected external force. -8-1236786 (6) The locking protrusions 1 1, 1 1 are disengaged from the locking parts 2 7, 2 7 to release the lock. Will be very dangerous. In addition, by positioning the two protective pieces 1 3, 1 3 of each locking arm 10, it is possible to effectively prevent accidental external force from acting on the locking arm 10. Secondly, when the socket connector 1 is to be unplugged from the base connector 21, the pressing operation parts 1 2, 1 2 of the two locking arms 10, 10 are clamped by fingers so as to face both sides 8, 8 The side is elastically deformed, and the locking projections 11 and 11 are disengaged from the locking portions 27 and 27 to release the locking. Then, the two locking arms 10 and 10 are moved backward and the socket shell 2 is pulled out from the base shell 22. . In addition, when the socket housing 2 of the socket connector 1 is inserted into the space portion 23 of the base connector 21 in the opposite direction by mistake, the stepped portions 7 and 7 of the cutout portions 6 and 6 are pushed up to the spacers. The front ends of the spacers 2 5 and 2 5 prevent the socket housing 2 from entering, so that reverse fitting can be prevented in advance. [Effects of the Invention] As described above, according to the present invention, the locking arm locking protrusions provided on both sides of one connector housing (socket housing) are engaged with the connector housing provided on the other ( The locking part on the inner wall surface of the base part) space part locks the two connector shells, so rarely the locking convex part detaches from the locking part due to external force, and the locking is accidentally released. In addition, since the external force can be prevented from acting on the above-mentioned locking arms by the position of the protective sheet sandwiching each of the locking arms, it is possible to effectively prevent the locking from being accidentally released. 1236786 (7) [Brief description of the drawings] FIG. 1 is a perspective view of a connector housing constituting one connector (socket connector) according to the present invention. Fig. 2 is a front view of a connector housing constituting one connector (socket connector) according to the present invention. Fig. 3 is a cross-sectional view taken along the line 3_3 in Fig. 2. Fig. 4 is a plan view of the other connector (base connector) constructed according to the present invention. Fig. 5 is a front view of the other connector (base connector) constructed according to the present invention. Figure 6 is a sectional view taken along line 6-6 in Figure 5. Fig. 7 is a cross-sectional view taken along a line 7-7 in Fig. 4. Fig. 8 is a perspective view showing a state of mating connection of two connectors according to the present invention. Fig. 9 is a cross-sectional view of the main part of Fig. 8. [Explanation of drawing number] 1: Socket connector 2: Socket shell 3 · Contactor accommodation chamber 8: Both sides 9: Support piece 1 〇: Locking arm 1 1: Locking projection -10- 1236786 (8) 1 2: Pressing operation part 1 3: Protective sheet 2 1: Base connector 22: Base case 2 3: Space part 2 3a: Open end part 2 4: Rear wall 2 6: Inner side wall 2 7: Locking part 2 8: Pin contactor 40: Printed wiring board 41: Electric wire 4 2: Socket contactor 43: Spear part