JP4535627B2 - Low current detection element built-in switch with light-emitting display - Google Patents

Low current detection element built-in switch with light-emitting display Download PDF

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Publication number
JP4535627B2
JP4535627B2 JP2001024821A JP2001024821A JP4535627B2 JP 4535627 B2 JP4535627 B2 JP 4535627B2 JP 2001024821 A JP2001024821 A JP 2001024821A JP 2001024821 A JP2001024821 A JP 2001024821A JP 4535627 B2 JP4535627 B2 JP 4535627B2
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Japan
Prior art keywords
current detection
switch
detection element
light
low
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JP2001024821A
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Japanese (ja)
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JP2002231104A (en
Inventor
達夫 松野
枝折 藤好
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Jimbo Electric Co Ltd
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Jimbo Electric Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、内装した低電流検知素子で通電を検知し、通電時に発光表示体を発光させる低電流検知素子内蔵発光表示付スイッチに関する。
【0002】
【従来の技術】
従来、家庭内配線用のスイッチとしてとして様々なスイッチが開発化され実用に供されている。特に、電気回路の開閉に対応して発光表示体を点灯、消灯させ電気回路の状態を確認できるようにした発光表示付スイッチが提案されている。
【0003】
【発明が解決しようとする課題】
しかしながら、スイッチに機能を付加するということは、その機能を働かせるための構成部品が増えることになり、これらの部品を小型の器体内に収装する作業は煩雑であり、組み付け作業を自動化するための障壁となり、この障壁をクリヤすることが組み付け作業の自動化促進における大きな課題であった。
【0004】
本発明は上記問題点を解消し、電気回路に流れる電流を検知して発光素子を点灯、消灯させるスイッチを組み立てる際に、スイッチを構成する構成部品の組み付け作業の自動化促進とともに、生産性向上を図ることができる低電流検知素子内蔵発光表示付スイッチを提供することをその課題とする。
【0005】
【課題を解決するための手段】
前記課題を解決するため、本発明に係る低電流検知素子内蔵発光表示付スイッチは、上部ケース及び下部ケースからなる器体内に、上部ケースに揺動可能に軸支された操作子の揺動操作により可動接触子を反転動作させて電気回路を開閉させるスイッチ機構と、電線を接続する接続端子部と、低電流検知素子と、発光表示体とを収納配置し、上記低電流検知素子で電流を検知した時に上記発光表示体を発光させて上記操作子の中央に設けられた透光部より外部に発光表示させる低電流検知素子内蔵発光表示付スイッチにおいて、上記低電流検知素子と、可動接触子と、該可動接触子を支持する支持板と、該支持板を上方に付勢するスプリングとを絶縁性を有する中枠体に収装したことを特徴とする。
【0006】
なお、前記中枠体に2つの収容部を形成し、一方の収容部には前記低電流検知素子を収容し、他方の収容部には前記スプリングと支持板と可動接触子とを収容することが好ましい。
【0007】
また、前記一方の収容部には押え壁と内壁とからなる固定手段を設け、該収容部に収容した前記低電流検知素子は上記固定手段で固定し、前記他方の収容部には収容部の内壁に形成されたフックからなる固定手段を設け、該収容部に収容した前記支持板は上記固定手段で固定して、収容した部品が中枠体から離脱しないようにすればよい。
【0008】
【発明の実施の形態】
図1は、本発明に係る電流検知素子内蔵発光表示付スイッチ(以下、スイッチという)の一例の分解斜視図を示し、このスイッチは3路用のスイッチで、上部ケース2及び下部ケース3からなる器体1内に、電線を接続する接続端子部6と、上部ケース2に揺動可能に軸支された操作子4の揺動操作により可動接触子5を反転動作させて電気回路を開閉させるスイッチ機構Aと、電気回路に電流が流れたことを検出する低電流検知素子7と、低電流検知素子7が検出した電流で点灯する発光表示体8を備えた回路基板9とを収納配置し、上部ケース2は下面が全面開口するとともに、上面に操作子4の上面を露出させる開口部10が形成された長方形の箱体で、開口部10の両側部には操作子4を回動可能に軸支する軸受部11が形成されるとともに下面4隅には下方に突出してフック12が形成されている。
【0009】
下部ケース3は上面が全面開口するとともに、図2に示すように、底面に電線を個別に挿入する電線挿入孔15と、挿入された電線の係止を解除する解除部材16を操作する為の工具を挿入する工具挿入口17とが形成され、下部ケース3の両側面には係止突部18が形成されている。
【0010】
そして、上部ケース2と下部ケース3とは上部ケース2に形成されたフック12を、下部ケース3に形成された係止突部18に係止させることにより下部ケース3と上部ケース2とが一体になり、全体として箱状の器体1が形成できるようになっている。
【0011】
電線が接続される接続端子部6は電源端子20、固定端子21及び切換端子22とで構成され、電源端子20、固定端子21及び切換端子22に対応して上記電線挿入孔15の上部に配置され、挿入された電線を係止するとともに電線と各端子20、21、22とを導通させる押えバネ23が配置され、電線挿入孔15から挿入された電線は押えバネ23に係止されるとともに、押えバネ23を介して各端子20、21、22に電気的に接続されるようになっている。
【0012】
そして、図3に示すように、固定端子21と切換端子22との中間には、可動接触子5とスプリング24で常に上方に付勢されるとともに、可動接触子5を支持する側面視略V字状の導電性及び弾性を有する支持板25とが配置され、この可動接触子5が、図3上で、左右に反転すると可動接触子5の可動接点5aが固定端子21の固定接点21aと切換端子22の切換接点22aとに選択的に接触し、電気回路の接続・遮断ができるようにスイッチ機構Aを構成している。
【0013】
上記可動接触子5は、操作子4によって反転駆動されて可動接点5aが選択的に固定接点21aと切換接点22aとに接触させられるが、この操作子4は中央に発光ダイオード8の光を通過させる開口部26に透明樹脂からなる透光板27が取り付けられた枠体で、長手方向両側部の中央下面には可動接触子5の両側部に形成された駆動片5bの上端に係合する駆動アーム28が下方に突出して形成され、図示しない化粧操作板を操作子4に装着する装着爪29が開口部26の長手方向両側に取り付けられ、両側部中央には上部カバー2に形成された軸受部11に揺動可能に支持される支軸30が側方に突出して形成されている。
【0014】
低電流検知素子7は、図4の回路図に示すように、ダイオードブリッジ回路35の直流出力端子にダイオード36を接続してユニット化したもので、交流入力端子のリード部7a、7bが上記可動接触子5を支持する支持板22及び電源端子20にそれぞれ接続され、電源端子20、固定端子21、切換端子22の上部に突出した接続ピン20b、21b、22bは、上方に配置した回路基板9に接続され、発光素子8を点灯させる点灯回路を形成している。
【0015】
ところで、上記スイッチ機構Aと低電流検知素子7とは中枠体40に収容されている。この中枠体40は、図5に示すように、中央が仕切り壁42で仕切られて2つの収容部40a、40bが形成され、一方の収容部40aには低電流検知素子7が収容され、他方の収容部40bにはスプリング24と支持板25とが収容できるようになっている。
【0016】
スプリング24は支持板25の側面視略V字状の支持部25aを下から押圧するように配置され、支持部25aを跨ぐように配置された可動接触子5を間接的に押し上げるようになっているため、支持板25はスプリング24を圧縮した状態で中枠体25内に収容することになるので、収容時に支持板25を固定する固定手段41が設けられている。この固定手段41は仕切り壁42と外枠43との間に形成されたスリット44と、収容部40b側の外枠45の内壁に形成されたフック46と、収容部40a側の外枠43の内壁に形成されたフック49とで構成され、支持板25の縦板25bがスリット44に圧入されるとともに、縦板25bの上端がフック46、49で固定され、収容部40bに安定した状態で収容される。
【0017】
そして、低電流検知素子7は固定手段47で収容部40aに固定される。この固定手段47は押え壁48aと外枠43の内側に形成された内壁48bとで構成され、低電流検知素子7を収容部40aに収容したとき、低電流検知素子7を押え壁48aと内壁48bとの間に保持し、収容部40a内に低電流検知素子7を固定できるようになっている(図6参照)。
【0018】
なお、図5において、符号25cは低電流検知素子7の交流入力端子7aがハンダ付けされる孔を示し、符号25dは回路基板9にハンダ付けされる接続ピンを示す。
【0019】
スイッチは上述のように構成されているので、このスイッチを組み立てる際には、中枠体40にスイッチの構成部品の一部である低電流検知素子7、スプリング24、支持板25を予めセットしておく。中枠体7にセットされた低電流検知素子7は固定手段47で収容部40aに固定され、支持板25はスプリング24とともに固定手段41で収容部40bに固定されるので、特にスプリング24を圧縮しながら部品組付けを行なう工程を事前に行なうことができるので、スイッチの組立て工程における煩雑さを回避することができる。
【0020】
次に、中枠体7を下カバー内に収装し、支持板25の支持部25a上に可動接触子5、中枠体の両側に解除部材16、押えバネ23をセットし、更に電源端子20、固定端子21、切換端子22を押えバネ23の上から差し込み(図7参照)、回路基板9を載せて接続ピン20b、21b、22b及び25dをハンダ付けをする(図8参照)。その後、上カバー2の軸受部11に支軸30が支持された作動子4の駆動アーム28の先端が可動接触子5の駆動片5bに係合させながら上カバー2を上から被せるようにしてフック12を係止突部18に係止させ、器体1を組み立てることにより、図9に示すように、上カバー2に揺動操作可能に軸支された操作子4と操作子4の開口部26に嵌め込まれた透光板27を前面から視認することができるスイッチを組み上げることができる。
【0021】
上述のように、スイッチを構成する構成部品を順次、下ケース内に収容し、上カバーを被せてこの上カバーを下カバーに固定することによりスイッチを組み上げることができるので、作業の効率化及び自動化を図ることができ生産性の向上に寄与することができる。
【0022】
なお、図10は片切用のスイッチの場合を示し、この片切用のスイッチは3路用スイッチにおける接続端子部6を電源端子20、固定端子21及び切換端子22に代えて、電源端子20と固定端子50との2つの端子で構成したもので、3回路用スイッチと同様に予めスイッチの構成部品の一部である低電流検知素子7、スプリング24、支持板25がセットされた中枠体40を、下カバー3に収装し、支持板25の支持部25a上に可動接触子5、中枠体の両側に解除部材16、押えバネ23をセットし、更に電源端子20、固定端子50を押えバネ23の上から差し込み(図11参照)、回路基板9を載せて図12に示すように接続ピン20b、25d及び50bをハンダ付けすることにより、図13に示すような点灯回路を構成することができる。
【0023】
その後、上カバー2の軸受部11に支軸30が支持された作動子4の駆動アーム28の先端が可動接触子5の駆動片5bに係合させながら上カバー2を上から被せるようにしてフック12を係止突部18に係止させ、器体1を組み立てることにより、上カバー2に揺動操作可能に軸支された操作子4と操作子4の開口部26に嵌め込まれた透光板27を前面から視認することができるスイッチを組み上げることができる。
【0024】
【発明の効果】
本発明によれば、スイッチを構成する構成部品を順次、下ケース内に収容し、上カバーを被せてこの上カバーを下カバーに固定することによりスイッチを組み上げることができるので、作業の効率化及び自動化を図ることができ生産性の向上に寄与することができる。
【0025】
また、予め低電流検知素子と、可動接触子と、該可動接触子を支持する支持板と、該支持板を上方に付勢するスプリングとを絶縁性を有する中枠体に収装しておくことにより、スイッチの組み立て作業の効率を図ることができる。
【0026】
そして、中枠体は仕切り壁で仕切られて2つの収容部が形成されているので、それぞれの収容部に該当する構成部品をセットすればよく、組み立て作業の準備作業を効率よく行なうことができる。
【0027】
更に、中枠体の収容部には収容した構成部品を固定する固定手段をそれぞれ設けたので、予め中枠体にセットした構成部品は中枠体から離脱することがなく、組み立て工程において1つの部品として取り扱うことができ、作業上の管理を円滑に行なうことができる。
【図面の簡単な説明】
【図1】本発明に係る3路用スイッチの分解斜視図
【図2】上記3路用スイッチの背面図
【図3】上記3路用スイッチの縦断面図
【図4】3路用スイッチの発光素子の点灯回路図
【図5】中枠体の構造を説明する斜視図
【図6】低電流検知素子の収容部を示す部分断面斜視図
【図7】3路用スイッチの組み立ての過程を説明する下カバーの正面図
【図8】3路用スイッチの組み立ての過程を説明する下カバーの正面図
【図9】上カバーを取り付けた状態の3路用スイッチの正面図
【図10】片切用スイッチの分解斜視図
【図11】3路用スイッチの組み立ての過程を説明する下カバーの正面図
【図12】3路用スイッチの組み立ての過程を説明する下カバーの正面図
【図13】片切用スイッチの発光素子の点灯回路図
【符号の説明】
1 器体
2 上カバー
3 下カバー
4 作動子
5 可動接触子
6 接続端子部
7 低電流検知素子
8 発光表示体
24 スプリング
25 支持板
40 中枠体
40a、40b 収容部
41、47 固定手段
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switch with a light-emitting display with a built-in low-current detection element that detects energization with a built-in low-current detection element and causes a light-emitting display to emit light when energized.
[0002]
[Prior art]
Conventionally, various switches have been developed and put into practical use as switches for home wiring. In particular, a switch with a light-emitting display has been proposed in which a light-emitting display body is turned on and off in response to opening and closing of the electric circuit so that the state of the electric circuit can be confirmed.
[0003]
[Problems to be solved by the invention]
However, adding a function to the switch increases the number of components that make the function work, and the task of housing these parts in a small vessel is cumbersome and automates the assembly work. Clearing this barrier was a major issue in promoting automation of assembly work.
[0004]
The present invention solves the above-mentioned problems, and when assembling a switch that turns on and off a light emitting element by detecting a current flowing in an electric circuit, it facilitates automation of assembly work of components constituting the switch and improves productivity. It is an object of the present invention to provide a switch with a light emitting display with a built-in low current detection element that can be realized.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, a switch with a light emitting display with a built-in low-current detection element according to the present invention is provided with a swing operation of an operator pivotally supported by an upper case in a body composed of an upper case and a lower case. The switch mechanism for reversing the movable contact to open and close the electric circuit, the connection terminal portion for connecting the electric wire, the low current detection element, and the light emitting display body are housed and arranged, and current is supplied by the low current detection element. In the switch with a light-emitting display with a built-in low-current detection element that causes the light-emitting display body to emit light when detected and emits light to the outside from a light-transmitting portion provided in the center of the operation element, the low-current detection element and the movable contact And a support plate for supporting the movable contact and a spring for urging the support plate upward are housed in an insulating middle frame.
[0006]
In addition, two accommodating portions are formed in the middle frame body, the low current detecting element is accommodated in one accommodating portion, and the spring, the support plate, and the movable contact are accommodated in the other accommodating portion. Is preferred.
[0007]
In addition, the one accommodating portion is provided with a fixing means composed of a presser wall and an inner wall, the low-current detection element accommodated in the accommodating portion is fixed by the fixing means, and the other accommodating portion is provided with an accommodating portion. Fixing means comprising a hook formed on the inner wall may be provided, and the support plate accommodated in the accommodating portion may be secured by the fixing means so that the accommodated components do not come off the middle frame.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an exploded perspective view of an example of a switch with a light emitting display with a built-in current detection element (hereinafter referred to as a switch) according to the present invention. This switch is a three-way switch, and includes an upper case 2 and a lower case 3. In the body 1, the movable contact 5 is reversed by the swinging operation of the connecting terminal 6 for connecting the electric wire and the operating member 4 pivotally supported by the upper case 2 to open and close the electric circuit. A switch mechanism A, a low-current detection element 7 for detecting that a current has flowed through the electric circuit, and a circuit board 9 having a light-emitting display body 8 that is lit by the current detected by the low-current detection element 7 are housed and arranged. The upper case 2 is a rectangular box having an opening on the entire bottom surface and an opening 10 for exposing the upper surface of the operation element 4 on the upper surface. The operation element 4 can be rotated on both sides of the opening 10. A bearing portion 11 that is pivotally supported is formed. Both the lower face 4 corners are hook 12 projects downward is formed.
[0009]
The lower case 3 has an opening on the entire surface, and as shown in FIG. 2, an electric wire insertion hole 15 for individually inserting electric wires into the bottom surface and a release member 16 for unlocking the inserted electric wires are operated. A tool insertion opening 17 for inserting a tool is formed, and locking projections 18 are formed on both side surfaces of the lower case 3.
[0010]
Then, the upper case 2 and the lower case 3 are configured such that the lower case 3 and the upper case 2 are integrated by locking the hook 12 formed on the upper case 2 to the locking protrusion 18 formed on the lower case 3. Thus, a box-shaped container 1 can be formed as a whole.
[0011]
The connection terminal portion 6 to which the electric wire is connected is composed of a power supply terminal 20, a fixed terminal 21 and a switching terminal 22, and is arranged above the wire insertion hole 15 corresponding to the power supply terminal 20, the fixed terminal 21 and the switching terminal 22. A presser spring 23 that locks the inserted electric wire and electrically connects the electric wire and each of the terminals 20, 21, and 22 is disposed. The electric wire inserted from the electric wire insertion hole 15 is locked to the presser spring 23. The terminals 20, 21, and 22 are electrically connected via the presser springs 23.
[0012]
As shown in FIG. 3, in the middle of the fixed terminal 21 and the switching terminal 22, the movable contact 5 and the spring 24 are always urged upward, and the side view substantially V supporting the movable contact 5 is provided. When the movable contact 5 is reversed left and right in FIG. 3, the movable contact 5 a of the movable contact 5 and the fixed contact 21 a of the fixed terminal 21 are arranged. The switch mechanism A is configured so as to selectively contact the switching contact 22a of the switching terminal 22 and connect / cut off the electric circuit.
[0013]
The movable contact 5 is reversely driven by the operation element 4 so that the movable contact 5a is selectively brought into contact with the fixed contact 21a and the switching contact 22a. The operation element 4 passes the light of the light emitting diode 8 in the center. A frame body in which a transparent plate 27 made of a transparent resin is attached to the opening 26 to be engaged, and engages with the upper end of the drive piece 5b formed on both sides of the movable contact 5 on the central lower surface of both sides in the longitudinal direction. A driving arm 28 is formed to project downward, and mounting claws 29 for mounting a decorative operation plate (not shown) on the operating element 4 are attached to both sides in the longitudinal direction of the opening 26, and is formed on the upper cover 2 at the center of both sides. A support shaft 30 that is swingably supported by the bearing portion 11 is formed to protrude laterally.
[0014]
As shown in the circuit diagram of FIG. 4, the low current detection element 7 is a unit formed by connecting a diode 36 to the DC output terminal of the diode bridge circuit 35, and the lead portions 7a and 7b of the AC input terminal are movable as described above. The connection pins 20b, 21b, and 22b that are respectively connected to the support plate 22 and the power supply terminal 20 that support the contact 5 and protrude above the power supply terminal 20, the fixed terminal 21, and the switching terminal 22 are arranged on the circuit board 9 disposed above. And a lighting circuit for lighting the light emitting element 8 is formed.
[0015]
By the way, the switch mechanism A and the low current detection element 7 are accommodated in the middle frame 40. As shown in FIG. 5, the middle frame body 40 is divided at the center by a partition wall 42 to form two accommodating portions 40 a and 40 b, and the low current detection element 7 is accommodated in one accommodating portion 40 a, The other accommodating portion 40b can accommodate the spring 24 and the support plate 25.
[0016]
The spring 24 is arranged so as to press the substantially V-shaped support part 25a in the side view of the support plate 25 from below, and indirectly pushes up the movable contact 5 arranged so as to straddle the support part 25a. Therefore, since the support plate 25 is accommodated in the middle frame 25 in a state where the spring 24 is compressed, a fixing means 41 for fixing the support plate 25 at the time of accommodation is provided. The fixing means 41 includes a slit 44 formed between the partition wall 42 and the outer frame 43, a hook 46 formed on the inner wall of the outer frame 45 on the housing portion 40b side, and an outer frame 43 on the housing portion 40a side. The vertical plate 25b of the support plate 25 is press-fitted into the slit 44, and the upper end of the vertical plate 25b is fixed by the hooks 46 and 49 so as to be stable in the accommodating portion 40b. Be contained.
[0017]
The low current detection element 7 is fixed to the accommodating portion 40 a by the fixing means 47. The fixing means 47 includes a presser wall 48a and an inner wall 48b formed on the inner side of the outer frame 43. When the low current detection element 7 is accommodated in the accommodating portion 40a, the low current detection element 7 is supported by the presser wall 48a and the inner wall. The low-current detection element 7 can be fixed in the housing portion 40a (see FIG. 6).
[0018]
In FIG. 5, reference numeral 25 c indicates a hole to which the AC input terminal 7 a of the low current detection element 7 is soldered, and reference numeral 25 d indicates a connection pin to be soldered to the circuit board 9.
[0019]
Since the switch is configured as described above, when assembling the switch, the low current detection element 7, the spring 24, and the support plate 25, which are some of the components of the switch, are set in the middle frame 40 in advance. Keep it. Since the low current detection element 7 set in the middle frame 7 is fixed to the accommodating portion 40a by the fixing means 47, and the support plate 25 is fixed to the accommodating portion 40b by the fixing means 41 together with the spring 24, the spring 24 is particularly compressed. However, since the process of assembling the parts can be performed in advance, it is possible to avoid complications in the process of assembling the switch.
[0020]
Next, the inner frame body 7 is accommodated in the lower cover, the movable contact 5 is set on the support portion 25a of the support plate 25, the release member 16 and the presser spring 23 are set on both sides of the inner frame body, and the power terminal 20, the fixed terminal 21 and the switching terminal 22 are inserted from above the pressing spring 23 (see FIG. 7), the circuit board 9 is placed, and the connection pins 20b, 21b, 22b and 25d are soldered (see FIG. 8). Thereafter, the tip of the drive arm 28 of the actuator 4 with the support shaft 30 supported on the bearing portion 11 of the upper cover 2 is engaged with the drive piece 5b of the movable contact 5 so as to cover the upper cover 2 from above. By engaging the hook 12 with the locking projection 18 and assembling the container 1, as shown in FIG. 9, the operating element 4 and the opening of the operating element 4 that are pivotally supported by the upper cover 2 so as to be swingable. A switch capable of visually recognizing the translucent plate 27 fitted in the portion 26 can be assembled.
[0021]
As described above, the switch can be assembled by sequentially housing the components constituting the switch in the lower case, covering the upper cover, and fixing the upper cover to the lower cover. Automation can be achieved and it can contribute to productivity improvement.
[0022]
FIG. 10 shows a case of a single-cut switch. This single-cut switch replaces the connection terminal 6 in the three-way switch with the power supply terminal 20, the fixed terminal 21 and the switching terminal 22, and the power supply terminal 20 And a fixed terminal 50, and an inner frame in which the low current detection element 7, spring 24, and support plate 25, which are part of the components of the switch, are set in advance, like the three-circuit switch. The body 40 is accommodated in the lower cover 3, the movable contact 5 is set on the support portion 25 a of the support plate 25, the release member 16 and the presser spring 23 are set on both sides of the middle frame, and the power terminal 20 and the fixed terminal 50 is inserted from above the presser spring 23 (see FIG. 11), the circuit board 9 is placed, and the connecting pins 20b, 25d and 50b are soldered as shown in FIG. To configure Can.
[0023]
Thereafter, the tip of the drive arm 28 of the actuator 4 with the support shaft 30 supported on the bearing portion 11 of the upper cover 2 is engaged with the drive piece 5b of the movable contact 5 so as to cover the upper cover 2 from above. By engaging the hook 12 with the locking projection 18 and assembling the container body 1, the operation element 4 that is pivotally supported by the upper cover 2 so as to be swingable and the opening 26 of the operation element 4 are fitted. A switch that can visually recognize the optical plate 27 from the front surface can be assembled.
[0024]
【The invention's effect】
According to the present invention, the components constituting the switch can be sequentially housed in the lower case, and the switch can be assembled by covering the upper cover and fixing the upper cover to the lower cover. And automation can be achieved and it can contribute to the improvement of productivity.
[0025]
In addition, a low-current detection element, a movable contact, a support plate that supports the movable contact, and a spring that biases the support plate upward are preliminarily accommodated in an insulating middle frame. Thus, the efficiency of the assembly work of the switch can be achieved.
[0026]
Since the inner frame body is partitioned by the partition wall to form the two housing portions, it is only necessary to set the component parts corresponding to the respective housing portions, and the assembly work can be efficiently prepared. .
[0027]
Further, since the housing portion of the middle frame body is provided with fixing means for fixing the housed component parts, the component parts set in advance on the middle frame body are not detached from the middle frame body, and one in the assembly process. It can be handled as a part and can be managed smoothly.
[Brief description of the drawings]
1 is an exploded perspective view of a three-way switch according to the present invention. FIG. 2 is a rear view of the three-way switch. FIG. 3 is a longitudinal sectional view of the three-way switch. FIG. 5 is a perspective view for explaining the structure of the middle frame body. FIG. 6 is a partial cross-sectional perspective view showing a housing portion of the low current detection element. FIG. 7 is a process of assembling the three-way switch. Front view of the lower cover to be explained [FIG. 8] Front view of the lower cover to explain the process of assembling the three-way switch [FIG. 9] Front view of the three-way switch with the upper cover attached [FIG. Fig. 11 is an exploded perspective view of the switch for turning off. Fig. 11 is a front view of the lower cover for explaining the process of assembling the three-way switch. Fig. 12 is a front view of the lower cover for explaining the process of assembling the three-way switch. ] Lighting circuit diagram of light-emitting element of switch for one-sided cut
DESCRIPTION OF SYMBOLS 1 Container 2 Upper cover 3 Lower cover 4 Actuator 5 Movable contact 6 Connection terminal part 7 Low current detection element 8 Light emission display body 24 Spring 25 Support plate 40 Middle frame body 40a, 40b Housing part 41, 47 Fixing means

Claims (3)

上部ケース及び下部ケースからなる器体内に、上部ケースに揺動可能に軸支された操作子の揺動操作により可動接触子を反転動作させて電気回路を開閉させるスイッチ機構と、電線を接続する接続端子部と、低電流検知素子と、発光表示体とを収納配置し、上記低電流検知素子で電流を検知した時に上記発光表示体を発光させて上記操作子の中央に設けられた透光部より外部に発光表示させる低電流検知素子内蔵発光表示付スイッチにおいて、
上記低電流検知素子と、可動接触子と、該可動接触子を支持する支持板と、該支持板を上方に付勢するスプリングとを絶縁性を有する中枠体に収装したことを特徴とする低電流検知素子内蔵発光表示付スイッチ。
An electric wire is connected to a switch mechanism that opens and closes an electric circuit by reversing the movable contact by a swinging operation of an operating member pivotally supported by the upper case in a body composed of an upper case and a lower case. A connecting terminal portion, a low-current detection element, and a light-emitting display body are housed and arranged, and when the current is detected by the low-current detection element, the light-emitting display body emits light and is provided at the center of the operation element. In the switch with a light-emitting display with a built-in low-current detection element that displays light emission from the outside
The low-current detection element, the movable contact, a support plate that supports the movable contact, and a spring that biases the support plate upward are housed in an insulating middle frame. A switch with a light emitting display with a built-in low current detection element.
前記中枠体に2つの収容部を形成し、一方の収容部には前記低電流検知素子を収容し、他方の収容部には前記スプリングと支持板と可動接触子とを収容した、請求項1記載の低電流検知素子内蔵発光表示付スイッチ。The two housing portions are formed in the middle frame, the low current detecting element is housed in one housing portion, and the spring, the support plate, and the movable contact are housed in the other housing portion. 1. A switch with a light-emitting display with a built-in low-current detector 前記一方の収容部には押え壁と内壁とからなる固定手段を設け、該収容部に収容した前記低電流検知素子は上記固定手段で固定し、前記他方の収容部には収容部の内壁に形成されたフックからなる固定手段を設け、該収容部に収容した前記支持板は上記固定手段で固定した、請求項2記載の低電流検知素子内蔵発光表示付スイッチ。 The one accommodating portion is provided with a fixing means composed of a presser wall and an inner wall, the low current detection element accommodated in the accommodating portion is fixed by the fixing means, and the other accommodating portion is fixed to the inner wall of the accommodating portion. 3. The switch with a light emitting display with a built- in low current detection element according to claim 2, wherein fixing means including a formed hook is provided, and the support plate accommodated in the accommodating portion is fixed by the fixing means .
JP2001024821A 2001-01-31 2001-01-31 Low current detection element built-in switch with light-emitting display Expired - Fee Related JP4535627B2 (en)

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JP4969824B2 (en) * 2005-09-06 2012-07-04 神保電器株式会社 Wiring equipment
KR200454899Y1 (en) 2009-08-17 2011-08-03 주식회사 위너스 Lamp assembly connection structure of switch outlet

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03205714A (en) * 1989-10-09 1991-09-09 Jimbo Electric Co Ltd Switch device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03205714A (en) * 1989-10-09 1991-09-09 Jimbo Electric Co Ltd Switch device

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