JP3878392B2

JP3878392B2 - Switch device

Info

Publication number: JP3878392B2
Application number: JP2000132840A
Authority: JP
Inventors: 義美後藤; 義雄田辺
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2000-04-27
Filing date: 2000-04-27
Publication date: 2007-02-07
Anticipated expiration: 2020-04-27
Also published as: JP2001312937A

Description

【０００１】
【発明の属する技術分野】
本発明は、電子機器の電源スイッチとして使用されるスイッチ装置に係り、特にばねの反転動作を利用して接点の接離を行う速動式のスイッチ装置の構造に関する。
【０００２】
【従来の技術】
従来の速動式のスイッチ装置の構造としては、図１２乃至図１４に示すものがある。図１２はスイッチ装置のオフ時の縦断面図、図１３は同じくオン時の縦断面図、図１４は接点機構部の部分説明図である。
この従来のスイッチ装置は、合成樹脂などの絶縁材からなるケース２１と、このケース２１の内底部に配設され上面に固定接点２２ａを備えた固定端子２２と、この固定端子２２に隣接して同じく前記ケース２１の内底面に配設された央端子２３と、この中央端子２３に可動に支持され、一端部に前記固定端子２２と接離可能な可動接点２９を備えた導体板２８と、この導体板２８と前記中央端子２３とに係止され前記導体板２８を可動に支持する支持板２７と、前記導体板２８と前記中央端子２３との間に屈曲されて係止され、自身の屈伸動作により前記導体板２８を駆動する板ばね３０と、この板ばね３０の突起３０ａに当接して駆動させ、前記導体板２８を前記固定端子２２の方向、あるいは前記固定端子２２から離れる方向へ変位させるスライド部材３１とから主に構成されている。
【０００３】
導体の金属板などからなる前記中央端子２３は、前記支持板２７が係止される支持板係止用突起２３ａと、前記板ばね３１が係止される板ばね係止用突起２３ｂとが形成されている。また、前記支持板係止用突起２３ａと板ばね係止用突起２３ｂには、略対向した位置に係止用Ｖ溝２３ｃ、２３ｄが設けられており、この係止用Ｖ溝２３ｃ、２３ｄに前記支持板２７と板ばね３０の一端側がそれぞれ係止されるものとなっている。
【０００４】
前記支持板２７は、同じく導体の金属板からなり、中央に前記板ばね係止用突起２３ｂが遊嵌可能な開口部を備え、略Ｕ字状に形成され、その一端側が前記支持板係止用突部２３ａの係止用Ｖ溝２３ｃに係止され、他端側が前記導体板２８の前記可動接点２９の固着側近傍に係止されている。
【０００５】
前記導体板２８は、同じく導体の金属板からなり、中央に前記支持板係止用突起２３ａ及び板ばね係止用突起２３ｂとが遊嵌可能な開口部と、一端側に前記可動接点２９とを備えている。前記導体板２８は、開口部の内縁の一端側に前記支持板２７の一端側が係止され、開口部の他端側が前記板ばね３０に係止されて、前記中央端子２３に可動に取り付けられている。
【０００６】
前記板ばね３０は、ばね性を有する薄板状の金属板で略Ｖ字状に形成され、一端側は前記中央端子２３の板ばね係止用突起２３ｂの係止用Ｖ溝２３ｄに係止され、他端側は前記導体板２８の開口部内縁の、前記支持板２７が係止された一端側とは対向する他端側に係止されている。前記板ばね３０は、前記中央端子２３と前記導体板２８との間に屈曲されて配設されている。また、前記板ばね３０の略Ｖ字状の頂点部近傍には、前記スライド部材３１がスライド移動した場合に、前記導体板２８を駆動するための作動突起３０ａが形成されている。
【０００７】
上記のスイッチ装置の接点機構を組み立てる場合には、前記導体板２８を前記中央端子２３に遊嵌した状態で可動に取り付けるため、前記導体板２８の開口部内縁の一端側に前記支持板２７の一端側を係止させ、前記支持板２７の他端側を前記中央端子２３の支持板係止用突起２３ａに係止した状態で、前記導体板２８の開口内縁の他端側と前記中央端子２３の板ばね係止用突起２３ｂとの間に前記板ばね３０を屈曲させた状態で取り付ける必要があった。この時、前記板ばね３０は前記支持板２７を介して前記導体板２８と前記中央端子２３との間で弾発した状態で取り付けられるため、前記導体板２８と前記支持板２７と前記板ばね３０とが三者一体となって前記中央端子２３に可動に取り付けられるものとなっている。
【０００８】
上記スイッチ装置の動作を説明すると、前記スライド部材３１が押圧されることにより、スライド部材３１が押圧方向（図示右方向）へスライド移動して、このスライド部材３１で前記板ばね３０のＶ字状の頂点部近傍が押され、板ばね３０は前記中央端子２３の板ばね係止用突起２３ｂの係止用Ｖ溝２３ｄを支点として時計方向へ回動される。この時、前記導体板２８は前記支持板２７と共に、前記中央端子２３の支持板係止用突起２３ａの係止用Ｖ溝２３ｃを支点として図示下方向へ移動し、前記板ばね３０との係止部が前記支持板係止用突起２３ａの係止用Ｖ溝２３ｃ（板ばね３０の反転ポイント）を越えた時に、前記導体板２８は図示下方向へ自走して前記可動接点２９が前記固定接点２２ａと当接し回路がオン状態となる。この時、前記スライド部材３１は押し込み位置にロックされる。
【０００９】
この状態から、更に前記スライド部材３１押圧すると、ロックが外れて、前記スライド部材３１は復帰ばね２６の付勢力により押圧方向とは反対の方向（図示左方向）へ復帰する。この時、前記板ばね３０の作動突起３０ａが押され、板ばね３０は反時計方向へ回動され、板ばね３０の反転ポイントを超えた時に、前記導体板２８は図示上方向へ自走して前記可動接点２９が前記固定接点２２ａから離間して回路がオフ状態となる。
【００１０】
【発明が解決しようとする課題】
しかしながら、上述した従来の速動式のスイッチ装置の構造においては、接点機構である前記導体板２８と前記支持板２７と前記板ばね３０とがそれぞれ別部品で形成されていることから、前記中央端子２３にそれぞれ回動可能に連係させて取り付けるためには、組立が煩雑となり、組立の作業性が悪いという問題があった。
【００１１】
また、前記導体板２８と前記支持板２７と前記板ばね３０とをそれぞれの係止部で係止して三者一体の構成としていることから、接触ポイントが多く発生してしまい、このため接触抵抗が大きくなり、通電時の発熱による温度上昇を低減することが困難であるという問題があった。
【００１２】
したがって、本発明では上述した問題点を解決し、速動式のスイッチ装置の構造で、接点機構の組立が簡易で、組立の作業性が向上できると共に、接触抵抗を小さくして通電時の発熱による温度上昇を低減することができるスイッチ装置を提供することを目的とする。
【００１３】
【課題を解決するための手段】
上記課題を解決するために本発明では、第１の手段として、固定接点と、この固定接点と接離される可動接点を有する導体板と、この導体板を可動に支持する中央端子と、一端が前記導体板に係止され、他端が前記中央端子に係止された支持板と、前記導体板と前記中央端子との間に屈曲して配設され、前記支持板と協働して前記導体板を前記中央端子に可動に支持する板ばねと、前記導体板を前記板ばねのばね性によりスライド移動方向に対して略垂直な方向へ変位させて前記可動接点を前記固定接点に接離させるスライド部材とを備え、前記支持板は、ばね性を有する板材で撓み可能に形成され、この支持板の一端が前記導体板に固着されると共に、他端が前記中央端子に回動可能に係止され、この係止部を支点として前記導体板が変位可能となるように形成されたスイッチ装置であって、前記支持板が係止される前記中央端子に、係止突部を形成し、且つ、前記支持板には、前記係止突部に挿通される開口部と、この開口部に連設された屈曲片を形成し、前記開口部と屈曲片が前記係止突部に係止されることで前記支持板を前記中央端子に位置規制させ、前記導体板には、前記可動接点をかしめ固着すると共に、前記導体板の前記可動接点の取付部に、前記可動接点を固着することにより前記支持板の一端を前記導体板に固着するようにしたことを特徴とする。
【００１４】
また、第２の手段として、前記スライド部材に、傾斜面からなる作動面部を形成し、且つ、前記導体板には、前記作動面部と当接する当接部を形成し、前記スライド部材のスライド移動に伴って、前記作動面部が前記当接部に摺接し、前記導体板をスライド移動方向に対して略垂直な方向へ変位させるようにしたことを特徴とする。
【００１６】
また、第３の手段として、収納部を有し、この収納部の内底面に前記固定接点と前記中央端子が固着されたケースを備え、前記収納部の内底部に、前記固定接点と前記中央端子との間を隔離する隔壁を形成したことを特徴とする。
【００１７】
また、第４の手段として、前記隔壁には、前記導体板の幅方向への移動を規制する位置規制用の凹溝部を形成したことを特徴とする。
【００１９】
【発明の実施の形態】
以下、本発明のスイッチ装置の１実施例を図１乃至図１１に示す。図１はスイッチ装置のオフ時の縦断面図、図２は同じくスイッチ装置のオン時の縦断面図、図３は同じくカバーとスライド部材の一部を破断した状態の平面図、図４は図２の４−４線における断面図、図５は接点機構部の平面図、図６は同じく接点機構部の正面図、図７乃至図１１は接点機構部の動作状態を示す説明図で、図７は初期（オフ）状態の説明図、図８は導体板が自走する直前の状態を示す説明図、図９は導体板が自走して接点がオンした直後の状態を示す説明図、図１０はスライド部材がロックして接点がオンした状態を示す説明図、図１１はスライドのロックが解除され導体板が自走して接点がオフとなる直前の状態を示す説明図である。
【００２０】
図において、ケース１は、合成樹脂などの絶縁材で上面が開口された箱状に形成されている。このケース１の開口内には一対の収納部１ａが形成され、この収納部１ａの内底面には、上面に固定接点２ａを有する導体の金属板からなる固定端子２と、この固定端子２に隣接して同じく導体の金属板からなる中央端子３がそれぞれ配設されている。
【００２１】
前記収納部１ａには、前記固定端子２と前記中央端子３との間にお互いを隔離する隔壁１ｂが形成されており、また、この隔壁１ｂの中央には、後述する導体板８の横方向への移動を規制する位置決め用の凹溝部１ｃが設けられている。また、前記収納部１ａには後述するスライド部材１１が収納され、スライド移動可能に配設されている。また、前記ケース１の先端側には、回路基板などへ取り付けるための取付脚４ａを有する金属板からなるフレーム４が取り付けられており、後端側には、後述するカバー１２を取り付ける取付突部１ｄが形成されている。また、前記ケース１の先端側には、後述するスライド部材１１のロックカム１１ｅに一端側が係合してスライド部材１１を押し込み位置にロックする、ロックピン５の他端側を軸支する軸孔１ｅが設けられており、この軸孔１ｅの更に先端側には、後述するスライド部材１１を復帰位置に付勢する復帰ばね６の一端側が係止される復帰ばね係止部１ｆが延設されている。
【００２２】
前記中央端子３には、後述する支持板７を係止する支持板係止用突起３ａと、後述する板ばね１０を係止する板ばね係止用突起３ｂがそれぞれ立設されており、また、前記支持板係止用突起３ａと板ばね係止用突起３ｂには、略対向した位置に係止用溝３ｃ、３ｄが設けられており、この係止用溝３ｃ、３ｄに後述する支持板７と板ばね１０の一端側がそれぞれ係止されるものとなっている。また、前記支持板係止用突起３ａには、後述する支持板７を係止して位置規制する係止突部３ｅが設けられている。
【００２３】
支持板７は、導電性のばね性を有する板材で形成され撓み可能となっており、この支持板７の中央には、窓孔部７ａが設けられ、この窓孔部７ａに後述する板ばね１０の一端側が遊嵌されるものとなっている。また、この支持板７の一端側には、後述する導体板８に固着される可動接点９が挿通される挿通孔７ｂが設けられており、導体板８に可動接点９で一体的に固着されるものとなっている。また、他端側には、前記係止突部３ｅに挿通される開口部７ｃが設けられており、この開口部７ｃの側縁には連設して垂下された屈曲片７ｄが設けられている。この開口部７ｃと屈曲片７ｄが前記係止突部３ｂに係止されることで、前記支持片７が前記中央端子３に、図３において横方向及び縦方向に位置規制されて係止されるものとなっている。
【００２４】
導体板８は、同じく導体の金属板からなり、この導体板８の中央には、窓孔部８ａが設けられ、この窓孔部８ａに前記支持板７が遊嵌されている。また、この窓孔部８ａには、前記支持板係止用突起３ａや後述する板ばね１０なども遊嵌されるものとなっている。また、前記導体板８の一端側には、前記支持板７の一端側が可動接点９と共に固着されており、前記支持板７は自由端である他端側が撓み可能となっている。前記導体板８は、一端側に前記支持板７の一端側が固着され、他端側である前記窓孔部８ａ内縁の一端側が後述する板ばね１０の一端側に係止されて、前記中央端子３に可動に取り付けられたものとなっている。また、前記導体板８の、前記可動接点９が固着された側の上端面側には、後述するスライド部材１１の導体板収容部１１ｃ天井面に当接する突起部８ｂが設けられ、前記可動接点９が固着されたのとは反対側の上端面側には、後述するスライド部材１１の作動面部１１ｄと当接する当接部８ｃが設けられている。
【００２５】
板ばね１０は、ばね性を有する薄板状の金属板で略Ｕ字状に形成され、一端側は前記中央端子３の板ばね係止用突起３ｂの係止用溝３ｄに係止され、他端側は前記導体板８の前記窓孔部８ａ内縁の、前記支持板７が固着された一端側とは対向する他端側に係止されている。前記板ばね１０は、前記中央端子３と前記導体板７との間に屈曲されて配設されており、前記導体板７は前記板ばね１０の付勢力によって前記固定接点２ａの配設位置（前記収納部１ａの内底面側）とは反対の方向へ付勢されたものとなっている。
【００２６】
スライド部材１１は、合成樹脂などの絶縁材から形成されており、前記ケース１の収納部１ａに配設される基部１１ａと、この基部１１ａの先端に延設された操作部１１ｂとを備えている。前記基部１１ａには、前記導体板８や支持板７等を収容する導体板収容部１１ｃが設けられ、この導体板収容部１１ｃの後端側には、前記導体板８の当接部８ｃと摺接して前記導体板８をスライド移動方向に対して略垂直な方向へ変位させる、傾斜面からなる作動面部１１ｄが形成されている。また、前記導体板収容部１１ｃの先端側には、前記したロックピン５が摺接されて、前記スライド部材１１を押し込み位置にロックするロックカム１１ｅが形成されている。また、前記操作部１１ｂには、前記スライド部材１１を復帰位置に付勢する前記復帰ばね６を収納する復帰ばね収納部１１ｆが設けられている。
【００２７】
カバー１２は、合成樹脂などの絶縁材で方形状に形成され、前記ケース１の後端側の前記取付突部１ｄと係止されるフック部１２ａと、前記ケース１の先端側に取り付けられた前記フレーム４とによって、前記ケース１の開口された前記収納部１ａを覆うように取り付けられている。
【００２８】
前述したスイッチ装置の接点機構を組み立てる場合には、前記ケース１の内底面に配設されている前記中央端子３に前記導体板８を取り付けることとなるが、この場合、前記導体板８に前記可動接点９を固着する時に、前記支持板７の一端側をこの導体板８と一体的に固着するようにしてあるため、前記導体板８と支持板７が一体部品になっており、また、前記中央端子３の前記支持板係止用突起３ａには前記係止突部３ｅが設けてあり、前記支持板７の自由端側の他端側には、前記係止突部３ｅに係止する前記開口部７ｃと屈曲部７ｄが設けてあることから、前記導体板８を前記支持板７の前記開口部７ｃと屈曲片７ｄに合わせて前記中央端子３の支持板係止用突起３ａに組み込むだけで容易に前記中央端子３に前記導体板８を組み込むことができる。この時、前記支持板７は前記開口部７ｃと屈曲片７ｄとで前記支持板係止用突起３ａの係止突部３ｅに係止され、位置決めされるものとなる。
【００２９】
また、前記ケース１の内底部には、前記固定端子２と中央端子３とを隔離する前記隔壁１ｂが設けられており、この隔壁１ｂの中央には、前記導体板８の横方向への移動を規制する位置決め用の前記凹溝部１ｃが設けられていることから、前記導体板８は確実に前記中央端子３上に位置決めされるものとなっている。
【００３０】
この状態から、前記導体板８の窓孔部８ａと前記支持板７の窓孔部７ａに遊嵌させた状態で、前記導体板８の一端側と前記中央端子３の前記板ばね係止用突起３ｂとの間に前記板ばね１０を屈曲させて係止させて接点機構部の組立は終了する。
この時、前記導体板８は前記板ばね１０の付勢力で前記収納部１ａの前記固定端子２が配設された方向とは反対の方向へ付勢された状態となり、前記可動接点９が固着された側の上端面の前記突起部８ｂが、前記スライド部材１１の導体板収容部１１ｃ天井面に当接し、他端側の前記当接部８ｃが前記作動面部１１ｄに当接することで、前記導体板８は可動接点９と固定接点２ａが一定の間隔を保持した状態で前記収納部１ａ内に略平行に配設された状態となっている。
【００３１】
次に、上述したスイッチ装置の動作を図７乃至図１１で説明する。
図７に示すように、初期の状態では前記導体板８は前記可動接点９が前記固定接点２ａと一定の間隔をおいて離間された状態で接点がオフ状態となっている。この状態では、前記導体板８は前記板ばね１０の付勢力で前記固定端子２及び固定接点２ａとは反対の方向（上側）へ付勢された状態となっている。
【００３２】
この状態から前記スライド部材１１の操作部１１ｂが前記復帰ばね６の付勢力に抗して押し込まれると、図８に示すように、前記スライド部材１１の作動面部１１ｄが前記導体板８の当接部８ｃを押圧し、前記導体板８の当接部８ｃ側を前記板ばね１０の付勢力に抗して前記収納部１ａの内底面側へ押し下げる。
この時、図９に示すにように、前記板ばね１０と導体板８との係止部が、前記支持板７と中央端子３の係止部（前記支持板係止用突起３ａの係止用溝３ｃ）と重なった時を境にして前記板ばね１０の付勢力の方向が下側へと反転し、前記導体板８は前記収納部１ａの内底面側に自走して前記可動接点９が前記固定接点２ａと当接して接点がオン状態となる。
【００３３】
この状態から前記スライド部材１１を更に押し込むことにより、図１０に示すように、前記導体板８の当接部８ｃが、前記スライド部材１１の作動面部１１ｄにより更に下側に押し下げられるものとなり、前記板ばね１０の付勢力によって前記可動接点９は前記固定接点２ａ方向へ押圧されることで接触が確実に行われるものとなっている。この時、前記スライド部材１１は、前記ロックピン５とロックカム１１ｅの協働により押し込み位置へロックされるものとなる。
【００３４】
この状態から、ロックを解除する場合には、前記スライド部材１１の操作部１１ｂを更に押圧してやると、前記ロックピン５が前記ロックカム１１ｅから外れて、前記スライド部材１１は前記復帰ばね６の付勢力で初期位置へ復帰するものとなる。この時、図１１に示すように、前記導体板８と板ばね１０との係止部が、前記支持板７と前記中央端子３との係止部（前記支持板係止用突起３ａの係止用溝３ｃ）を越えると前記板ばね１０の付勢力の方向が上側へと反転し、前記導体板８は前記収納部１ａの内底面とは反対側に自走して前記可動接点９が前記固定接点２ａと離間して接点がオフ状態となり、図７に示す初期状態へと復帰する。
【００３５】
上記した本発明の実施例によれば、前記導体板８を可動に支持する前記中央端子３と、一端が前記導体板８に係止され、他端が前記中央端子３に係止された支持板７と、前記導体板８と前記中央端子３との間に屈曲して配設され、前記支持板７と協働して前記導体板８を前記中央端子３に可動に支持する板ばね１０とからなる接点機構部を、前記支持板７は、ばね性を有する板材で撓み可能に形成し、この支持板７の一端側を前記導体板８に可動接点９で一緒に固着すると共に、他端側を前記中央端子３に回動可能に係止して、この係止部を支点として前記導体板８が変位可能となるように形成したことから、接点機構部の部品構成が簡易となり、組立が煩雑とならずに作業性が向上できるものとなっている。
【００３６】
また、前記導体板８と前記支持板７とを前記可動接点９で一緒に固着してあることから、接触ポイントを少なくでき、このため接触抵抗を小さくすることができ、通電時の発熱による温度上昇を低減することが可能となっている。
【００３７】
また、前記中央端子３に係止突部３ｅを形成し、前記支持板７には、前記係止突部３ｅに挿通される開口部７ｃと、この開口部７ｃに連設された屈曲片７ｄを形成し、前記開口部７ｃと屈曲片７ｄとで前記支持板７を前記中央端子３に位置規制させるようにすると共に、前記収納部１ａの内底部に形成した前記隔壁１ｂに前記導体板８の幅方向への移動を規制する凹溝部１ｃを設けたことから、前記支持板７及び導体板８を前記中央端子３の上方から組み込むだけで、容易に位置合わせが可能となっている。
【００３８】
また、前記収納部１ａの内底部に、前記固定接点２ａと前記中央端子３との間を隔離する前記隔壁１ｂを形成したことから、スイッチ操作時に発生するアークによる中央端子側のケース側壁への付着物の影響を少なくできることから、絶縁性を向上させ、品質の安定が図れる。
【００３９】
尚、上述した実施例では、前記支持板７の一端側を前記導体板８に固着する位置を、前記可動接点９の固着側と同一側としたが、これとは反対側に固着しても良く、この場合、前記板ばね１０と前記導体板８との係止位置はこれとは反対に前記可動接点９の固着側となる。この場合にも、上述した構成と同様の効果が得られるのはもちろんである。尚、前記支持板７と導体板８を可動接点９と一緒に固着した場合には、さらに組立を簡易にすることができるものとなる。
【００４０】
【発明の効果】
以上説明したように、本発明のスイッチ装置の構造は、導体板を可動に支持する中央端子と、一端が導体板に係止され、他端が中央端子に係止された支持板と、導体板と中央端子との間に屈曲して配設され、支持板と協働して導体板を中央端子に可動に支持する板ばねとからなる接点機構部を、支持板は、ばね性を有する板材で撓み可能に形成し、この支持板の一端側を導体板に可動接点で一緒に固着すると共に、他端側を中央端子に回動可能に係止して、この係止部を支点として導体板が変位可能となるように形成したことから、接点機構部の部品構成が簡易となり、組立が煩雑とならずに作業性が向上できる。
【００４１】
また、スライド部材に、傾斜面からなる作動面部を形成し、且つ、導体板には、作動面部と当接する当接部を形成し、スライド部材のスライド移動に伴って、作動面部が当接部に摺接し、導体板をスライド移動方向に対して略垂直な方向へ変位させるようにしたことから、スイッチ装置の小型化、薄型化が図れる。
【００４２】
また、支持板が係止される中央端子に、係止突部を形成し、且つ、支持板には、係止突部に挿通される開口部と、この開口部に連設された屈曲片を形成し、開口部と屈曲片が係止突部に係止されることで支持板を中央端子に位置規制させたことから、支持板を中央端子の上方から組み込むだけで、容易に位置合わせが可能となり、組立作業性が向上する。
【００４３】
また、収納部を有し、この収納部の内底面に固定接点と中央端子が固着されたケースを備え、収納部の内底部に、固定接点と中央端子との間を隔離する隔壁を形成したことから、スイッチ操作時に発生するアークによる中央端子側のケース側壁への付着物の影響を少なくでき、絶縁性を向上させ、品質の安定が図れる。
【００４４】
また、隔壁には、導体板の幅方向への移動を規制する位置規制用の凹溝部を形成したことから、導体板を中央端子の上方から組み込むだけで、容易に位置合わせが可能となり、組立作業性が向上する。
【００４５】
また、導体板には、可動接点をかしめ固着すると共に、導体板の可動接点の取付部に、可動接点を固着することにより支持板の一端を導体板に固着するようにしたことから、さらに組立を簡易にすることができる。
【図面の簡単な説明】
【図１】本発明の１実施例であるスイッチ装置のオフ時を示す縦断面図である。
【図２】本発明の同じくスイッチ装置のオン時を示す縦断面図である。
【図３】本発明の同じくカバーとスライド部材の一部を破断した状態を示す平面図である。
【図４】本発明の図２の４−４線における断面図である。
【図５】本発明の接点機構部を示す平面図である。
【図６】本発明の同じく接点機構部を示す正面図である。
【図７】本発明の接点機構部の初期（オフ）状態を示す説明図である。
【図８】本発明の導体板が自走する直前の状態を示す説明図である。
【図９】本発明の導体板が自走して接点がオンした直後の状態を示す説明図である。
【図１０】本発明のスライド部材がロックして接点がオンした状態を示す説明図である。
【図１１】本発明のスライドのロックが解除され導体板が自走して接点がオフとなる直前の状態を示す説明図である。
【図１２】従来のスイッチ装置のオフ時を示す縦断面図である。
【図１３】従来の同じくスイッチ装置のオン時を示す縦断面図である。
【図１４】従来の接点機構部を示す部分説明図である。
【符号の説明】
１ケース
１ａ収納部
１ｂ隔壁
１ｃ凹溝部
１ｄ取付突部
１ｅ軸孔
１ｆ復帰ばね係止部
２固定端子
２ａ固定接点
３中央端子
３ａ支持板係止用突起
３ｂ板ばね係止用突起
３ｃ，３ｄ係止用溝（係止部）
３ｅ係止突部
４フレーム
４ａ取付脚
５ロックピン
６復帰ばね
７支持板
７ａ窓孔部
７ｂ挿通孔
７ｃ開口部
７ｄ屈曲片
８導体板
８ａ窓孔部
８ｂ突起部
８ｃ当接部
９可動接点
１０板ばね
１１スライド部材
１１ａ基部
１１ｂ操作部
１１ｃ導体板収納部
１１ｄ作動面部
１１ｅロックカム
１１ｆ復帰ばね収納部
１２カバー
１２ａフック部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switch device used as a power switch of an electronic device, and more particularly, to a structure of a fast-acting switch device that contacts and separates contacts using a reversing operation of a spring.
[0002]
[Prior art]
As a structure of a conventional fast-acting switch device, there is one shown in FIGS. 12 is a longitudinal sectional view when the switch device is turned off, FIG. 13 is a longitudinal sectional view when the switch device is turned on, and FIG. 14 is a partial explanatory view of the contact mechanism portion.
This conventional switch device includes a case 21 made of an insulating material such as a synthetic resin, a fixed terminal 22 disposed on the inner bottom portion of the case 21 and provided with a fixed contact 22a on the upper surface, and adjacent to the fixed terminal 22. Similarly, a central terminal 23 disposed on the inner bottom surface of the case 21, a conductor plate 28 movably supported by the central terminal 23, and provided with a movable contact 29 that can be moved toward and away from the fixed terminal 22 at one end, A support plate 27 that is locked to the conductive plate 28 and the central terminal 23 and movably supports the conductive plate 28, and is bent and locked between the conductive plate 28 and the central terminal 23. The plate spring 30 that drives the conductor plate 28 by bending and stretching operation and the protrusion 30a of the plate spring 30 is driven and driven to move the conductor plate 28 toward the fixed terminal 22 or away from the fixed terminal 22. Displacement Are mainly composed that the slide member 31..
[0003]
The central terminal 23 made of a conductive metal plate or the like is formed with a support plate locking projection 23a for locking the support plate 27 and a plate spring locking projection 23b for locking the plate spring 31. Has been. The support plate locking projections 23a and the leaf spring locking projections 23b are provided with locking V-grooves 23c and 23d at substantially opposed positions. One end side of the support plate 27 and the leaf spring 30 is locked.
[0004]
The support plate 27 is also made of a conductive metal plate, and is provided with an opening portion in which the leaf spring locking projection 23b can be loosely fitted in the center, and is formed in a substantially U shape. The projecting portion 23a is locked in the locking V-groove 23c, and the other end is locked in the vicinity of the fixed side of the movable contact 29 of the conductor plate 28.
[0005]
The conductor plate 28 is also made of a conductive metal plate, and has an opening in which the support plate locking projection 23a and the leaf spring locking projection 23b can be loosely fitted in the center, and the movable contact 29 on one end side. It has. The conductor plate 28 is movably attached to the central terminal 23 with one end of the support plate 27 locked to one end of the inner edge of the opening and the other end of the opening locked to the leaf spring 30. ing.
[0006]
The leaf spring 30 is a thin metal plate having a spring property and is formed in a substantially V shape. One end of the leaf spring 30 is engaged with the engagement V groove 23d of the leaf spring engagement protrusion 23b of the central terminal 23. The other end side is locked to the other end side of the inner edge of the opening of the conductor plate 28 opposite to the one end side where the support plate 27 is locked. The leaf spring 30 is bent between the central terminal 23 and the conductor plate 28. Further, an operating projection 30a for driving the conductor plate 28 when the slide member 31 slides is formed in the vicinity of the substantially V-shaped apex portion of the leaf spring 30.
[0007]
When assembling the contact mechanism of the switch device described above, the conductive plate 28 is movably attached in a state of being loosely fitted to the central terminal 23. One end side is locked and the other end side of the support plate 27 is locked to the support plate locking projection 23a of the central terminal 23, and the other end side of the opening inner edge of the conductor plate 28 and the central terminal It is necessary to attach the leaf spring 30 in a bent state between the leaf spring locking projections 23b. At this time, since the leaf spring 30 is attached in a state of being elastic between the conductor plate 28 and the central terminal 23 via the support plate 27, the conductor plate 28, the support plate 27, and the leaf spring are attached. 30 is integrally attached to the central terminal 23 in a three-piece manner.
[0008]
The operation of the switch device will be described. When the slide member 31 is pressed, the slide member 31 slides in the pressing direction (right direction in the drawing), and the slide member 31 uses the V-shape of the leaf spring 30. The leaf spring 30 is rotated clockwise with the locking V groove 23d of the leaf spring locking projection 23b of the central terminal 23 as a fulcrum. At this time, the conductor plate 28 moves together with the support plate 27 downward in the figure with the locking V groove 23c of the support plate locking projection 23a of the center terminal 23 as a fulcrum, and is engaged with the plate spring 30. When the stop portion exceeds the locking V groove 23c (the reversal point of the leaf spring 30) of the support plate locking projection 23a, the conductor plate 28 is self-propelled in the downward direction in the figure, and the movable contact 29 is The circuit contacts the fixed contact 22a and is turned on. At this time, the slide member 31 is locked in the pushing position.
[0009]
When the slide member 31 is further pressed from this state, the lock is released, and the slide member 31 returns to the direction opposite to the pressing direction (the left direction in the drawing) by the urging force of the return spring 26. At this time, the operating protrusion 30a of the leaf spring 30 is pushed, the leaf spring 30 is rotated counterclockwise, and when the reversal point of the leaf spring 30 is exceeded, the conductor plate 28 self-runs in the upward direction in the figure. Thus, the movable contact 29 is separated from the fixed contact 22a and the circuit is turned off.
[0010]
[Problems to be solved by the invention]
However, in the above-described structure of the conventional fast-acting switch device, the conductor plate 28, the support plate 27, and the leaf spring 30 that are contact mechanisms are formed as separate parts. In order to attach the terminals 23 so as to be pivotable, the assembly is complicated, and there is a problem that the workability of the assembly is poor.
[0011]
Further, since the conductor plate 28, the support plate 27, and the leaf spring 30 are locked by the respective locking portions to form a three-piece structure, many contact points are generated. There is a problem that resistance increases and it is difficult to reduce temperature rise due to heat generation during energization.
[0012]
Therefore, the present invention solves the above-mentioned problems, and the structure of the fast-acting switch device facilitates the assembly of the contact mechanism, improves the workability of the assembly, reduces the contact resistance, and generates heat during energization. An object of the present invention is to provide a switch device that can reduce the temperature rise due to.
[0013]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the present invention, as a first means, a fixed contact, a conductor plate having a movable contact contacting and separating from the fixed contact, a central terminal for movably supporting the conductor plate, and one end thereof A support plate locked to the conductor plate and having the other end locked to the center terminal, and bent between the conductor plate and the center terminal, and in cooperation with the support plate, A leaf spring that movably supports the conductor plate on the center terminal, and the conductor plate is displaced in a direction substantially perpendicular to the sliding movement direction by the spring property of the leaf spring, and the movable contact is brought into contact with and separated from the fixed contact. The support plate is formed so as to be able to bend with a plate material having a spring property, and one end of the support plate is fixed to the conductor plate, and the other end is rotatable to the central terminal. The conductor plate is displaced using this locking part as a fulcrum. Formed so as to function In the switch device, the center terminal to which the support plate is locked is formed with a locking projection, and the support plate has an opening inserted through the locking projection, A bent piece connected to the opening is formed, and the opening and the bent piece are locked by the locking protrusion to restrict the position of the support plate to the center terminal. The movable contact is caulked and fixed, and the one end of the support plate is fixed to the conductive plate by fixing the movable contact to the mounting portion of the movable contact of the conductive plate. It is characterized by that.
[0014]
Further, as a second means, an operating surface portion formed of an inclined surface is formed on the slide member, and an abutting portion that contacts the operating surface portion is formed on the conductive plate, and the slide movement of the slide member is performed. Accordingly, the operating surface portion is in sliding contact with the abutting portion, and the conductor plate is displaced in a direction substantially perpendicular to the sliding movement direction.
[0016]
Also, Third As a means, a housing portion is provided, and a case in which the fixed contact and the center terminal are fixed to an inner bottom surface of the housing portion is provided, and an inner bottom portion of the storage portion is provided between the fixed contact and the center terminal. It is characterized in that a partition wall for isolating is formed.
[0017]
Also, 4th As a means for this, the partition wall is formed with a concave groove portion for position regulation for regulating movement of the conductor plate in the width direction.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the switch device of the present invention is shown in FIGS. FIG. 1 is a longitudinal sectional view when the switch device is turned off, FIG. 2 is a longitudinal sectional view when the switch device is turned on, FIG. 3 is a plan view of the cover and a part of the slide member, and FIG. FIG. 5 is a plan view of the contact mechanism unit, FIG. 6 is a front view of the contact mechanism unit, and FIGS. 7 to 11 are explanatory diagrams showing the operating state of the contact mechanism unit. 7 is an explanatory diagram of the initial (off) state, FIG. 8 is an explanatory diagram showing a state immediately before the conductor plate is self-running, FIG. 9 is an explanatory diagram showing a state immediately after the conductor plate is self-running and the contact is turned on, FIG. 10 is an explanatory view showing a state where the slide member is locked and the contact is turned on, and FIG. 11 is an explanatory view showing a state immediately before the slide is unlocked and the conductive plate is self-running and the contact is turned off.
[0020]
In the figure, the case 1 is formed in a box shape whose upper surface is opened with an insulating material such as synthetic resin. A pair of storage portions 1 a are formed in the opening of the case 1, and a fixed terminal 2 made of a conductive metal plate having a fixed contact 2 a on the upper surface is formed on the inner bottom surface of the storage portion 1 a, and Adjacent to each other, a central terminal 3 made of a conductive metal plate is disposed.
[0021]
A partition wall 1b is formed between the fixed terminal 2 and the central terminal 3 in the storage portion 1a. The partition wall 1b has a lateral direction of a conductor plate 8 to be described later in the center of the partition wall 1b. A concave groove portion 1c for positioning that restricts movement to is provided. Further, a slide member 11 to be described later is stored in the storage portion 1a and is slidably disposed. Further, a frame 4 made of a metal plate having mounting legs 4a for mounting to a circuit board or the like is mounted on the front end side of the case 1, and a mounting protrusion for mounting a cover 12 described later on the rear end side. 1d is formed. Further, at the front end side of the case 1, a shaft hole 1 e that pivotally supports the other end side of the lock pin 5 that engages with a lock cam 11 e of a slide member 11 to be described later and locks the slide member 11 in the pushing position. A return spring locking portion 1f that locks one end side of a return spring 6 that urges a slide member 11 (to be described later) to a return position is extended to the further tip side of the shaft hole 1e. Yes.
[0022]
The center terminal 3 is provided with a support plate locking projection 3a for locking a support plate 7 described later and a plate spring locking projection 3b for locking a plate spring 10 described later, The support plate locking projections 3a and the leaf spring locking projections 3b are provided with locking grooves 3c and 3d at substantially opposite positions, and the locking grooves 3c and 3d support later described. One end side of the plate 7 and the leaf spring 10 is locked. The support plate locking projection 3a is provided with a locking projection 3e that locks a support plate 7 to be described later and restricts the position.
[0023]
The support plate 7 is formed of a plate material having a conductive spring property and can be bent. A window hole portion 7a is provided at the center of the support plate 7, and a plate spring described later is provided in the window hole portion 7a. One end side of 10 is loosely fitted. In addition, an insertion hole 7b through which a movable contact 9 fixed to a conductor plate 8 (described later) is inserted is provided on one end side of the support plate 7, and is integrally fixed to the conductor plate 8 with the movable contact 9. Has become. Further, an opening 7c that is inserted through the locking projection 3e is provided on the other end side, and a bent piece 7d that is continuously provided and hung is provided on a side edge of the opening 7c. Yes. When the opening 7c and the bent piece 7d are locked to the locking protrusion 3b, the support piece 7 is locked to the central terminal 3 with its position restricted in the horizontal and vertical directions in FIG. Has become.
[0024]
The conductor plate 8 is also made of a conductive metal plate. A window hole portion 8a is provided in the center of the conductor plate 8, and the support plate 7 is loosely fitted in the window hole portion 8a. The window hole 8a is also loosely fitted with the support plate locking projection 3a and a leaf spring 10 described later. Further, one end side of the support plate 7 is fixed together with the movable contact 9 to one end side of the conductor plate 8, and the other end side, which is a free end, of the support plate 7 can be bent. One end side of the support plate 7 is fixed to one end side of the conductive plate 8, and one end side of the inner edge of the window hole portion 8 a, which is the other end side, is locked to one end side of a leaf spring 10, which will be described later. 3 is movably attached. In addition, a protrusion 8b that abuts a conductor plate housing portion 11c ceiling surface of a slide member 11, which will be described later, is provided on the upper end surface of the conductor plate 8 on the side where the movable contact 9 is fixed. An abutting portion 8c that abuts on an operating surface portion 11d of a slide member 11 to be described later is provided on the upper end surface side opposite to where 9 is fixed.
[0025]
The leaf spring 10 is a thin plate-like metal plate having spring properties and is formed in a substantially U shape. One end of the leaf spring 10 is locked in the locking groove 3d of the leaf spring locking projection 3b of the central terminal 3, and the like. The end side is locked to the other end side of the inner edge of the window hole 8a of the conductor plate 8 opposite to the one end side to which the support plate 7 is fixed. The leaf spring 10 is bent and disposed between the central terminal 3 and the conductor plate 7, and the conductor plate 7 is disposed at the position (the position of the fixed contact 2 a) by the urging force of the leaf spring 10. It is biased in the direction opposite to the inner bottom surface side of the storage portion 1a.
[0026]
The slide member 11 is formed of an insulating material such as a synthetic resin, and includes a base portion 11a disposed in the storage portion 1a of the case 1 and an operation portion 11b extending at the tip of the base portion 11a. Yes. The base portion 11a is provided with a conductor plate accommodating portion 11c that accommodates the conductor plate 8, the support plate 7 and the like, and a contact portion 8c of the conductor plate 8 is provided on the rear end side of the conductor plate accommodating portion 11c. An operating surface portion 11d made of an inclined surface is formed to slide and displace the conductor plate 8 in a direction substantially perpendicular to the sliding movement direction. Further, a lock cam 11e is formed on the leading end side of the conductor plate housing portion 11c so that the lock pin 5 is slidably contacted to lock the slide member 11 in the pushing position. The operating portion 11b is provided with a return spring storage portion 11f for storing the return spring 6 that biases the slide member 11 to the return position.
[0027]
The cover 12 is formed in a square shape with an insulating material such as a synthetic resin, and is attached to the hook portion 12a that is engaged with the attachment protrusion 1d on the rear end side of the case 1 and the front end side of the case 1. The frame 4 is attached so as to cover the storage portion 1 a opened in the case 1.
[0028]
When assembling the contact mechanism of the switch device described above, the conductor plate 8 is attached to the central terminal 3 disposed on the inner bottom surface of the case 1. In this case, the conductor plate 8 is attached to the conductor plate 8. When the movable contact 9 is fixed, one end side of the support plate 7 is fixed integrally with the conductor plate 8, so that the conductor plate 8 and the support plate 7 are an integral part. The support plate locking projection 3a of the central terminal 3 is provided with the locking projection 3e, and the other end of the support plate 7 on the free end side is locked to the locking projection 3e. Since the opening 7c and the bent portion 7d are provided, the conductor plate 8 is aligned with the opening 7c and the bent piece 7d of the support plate 7 to the support plate locking projection 3a of the central terminal 3. The conductor plate 8 can be easily incorporated into the central terminal 3 simply by assembling. Can. At this time, the support plate 7 is locked to the locking projection 3e of the support plate locking projection 3a by the opening 7c and the bent piece 7d and positioned.
[0029]
Further, the partition 1b for separating the fixed terminal 2 and the center terminal 3 is provided at the inner bottom of the case 1, and the conductor plate 8 is moved in the lateral direction at the center of the partition 1b. Since the concave groove portion 1c for positioning is provided, the conductor plate 8 is reliably positioned on the center terminal 3.
[0030]
From this state, in a state of loosely fitting into the window hole portion 8a of the conductor plate 8 and the window hole portion 7a of the support plate 7, the one end side of the conductor plate 8 and the leaf spring locking of the central terminal 3 are used. The leaf spring 10 is bent and locked between the protrusion 3b and the assembly of the contact mechanism is completed.
At this time, the conductor plate 8 is urged in the direction opposite to the direction in which the fixed terminal 2 of the storage portion 1a is disposed by the urging force of the leaf spring 10, and the movable contact 9 is fixed. The protruding portion 8b on the upper end surface on the formed side abuts on the conductor plate housing portion 11c ceiling surface of the slide member 11, and the abutting portion 8c on the other end side abuts on the operating surface portion 11d. The conductor plate 8 is in a state in which the movable contact 9 and the fixed contact 2a are arranged substantially in parallel in the storage portion 1a in a state where a predetermined distance is maintained.
[0031]
Next, the operation of the switch device described above will be described with reference to FIGS.
As shown in FIG. 7, in the initial state, the conductive plate 8 is in the OFF state with the movable contact 9 being spaced apart from the fixed contact 2a by a certain distance. In this state, the conductor plate 8 is urged in the direction (upward) opposite to the fixed terminal 2 and the fixed contact 2 a by the urging force of the leaf spring 10.
[0032]
When the operation portion 11b of the slide member 11 is pushed against the biasing force of the return spring 6 from this state, the operating surface portion 11d of the slide member 11 contacts the conductor plate 8 as shown in FIG. The portion 8c is pressed, and the contact portion 8c side of the conductor plate 8 is pushed down to the inner bottom surface side of the storage portion 1a against the urging force of the leaf spring 10.
At this time, as shown in FIG. 9, the locking portion between the leaf spring 10 and the conductor plate 8 is the locking portion between the support plate 7 and the central terminal 3 (the locking of the support plate locking projection 3a). The direction of the urging force of the leaf spring 10 reverses downward when it overlaps with the groove 3c), and the conductor plate 8 is self-propelled toward the inner bottom surface of the storage portion 1a to move the movable contact. 9 contacts the fixed contact 2a, and the contact is turned on.
[0033]
By further pressing the slide member 11 from this state, as shown in FIG. 10, the contact portion 8c of the conductor plate 8 is further pushed down by the operating surface portion 11d of the slide member 11, The movable contact 9 is pressed in the direction of the fixed contact 2a by the urging force of the leaf spring 10, so that the contact is surely performed. At this time, the slide member 11 is locked to the pushing position by the cooperation of the lock pin 5 and the lock cam 11e.
[0034]
When releasing the lock from this state, if the operation portion 11b of the slide member 11 is further pressed, the lock pin 5 is detached from the lock cam 11e, and the slide member 11 is biased by the return spring 6. To return to the initial position. At this time, as shown in FIG. 11, the locking portion between the conductor plate 8 and the leaf spring 10 is the locking portion between the support plate 7 and the central terminal 3 (the engagement of the support plate locking projection 3a). When the stop groove 3c) is exceeded, the direction of the urging force of the leaf spring 10 is reversed upward, the conductor plate 8 is self-propelled on the side opposite to the inner bottom surface of the storage portion 1a, and the movable contact 9 is moved. The contact is separated from the fixed contact 2a, and the contact is turned off to return to the initial state shown in FIG.
[0035]
According to the embodiment of the present invention described above, the central terminal 3 that movably supports the conductor plate 8 and a support that has one end locked to the conductor plate 8 and the other end locked to the center terminal 3. A leaf spring 10 which is bent and disposed between the plate 7, the conductor plate 8 and the central terminal 3, and supports the conductor plate 8 movably on the central terminal 3 in cooperation with the support plate 7. The support plate 7 is formed so that the support plate 7 can be bent with a spring plate, and one end side of the support plate 7 is fixed to the conductor plate 8 together with the movable contact 9, and the other Since the end side is pivotally locked to the central terminal 3 and the conductor plate 8 is formed to be displaceable with the locking portion as a fulcrum, the component configuration of the contact mechanism portion is simplified. The workability can be improved without making the assembly complicated.
[0036]
In addition, since the conductor plate 8 and the support plate 7 are fixed together by the movable contact 9, the contact point can be reduced, so that the contact resistance can be reduced, and the temperature caused by the heat generated during energization. It is possible to reduce the rise.
[0037]
Further, a locking projection 3e is formed on the central terminal 3, and an opening 7c inserted through the locking projection 3e and a bent piece 7d connected to the opening 7c are formed on the support plate 7. The support plate 7 is regulated by the central terminal 3 by the opening 7c and the bent piece 7d, and the conductor plate 8 is formed on the partition wall 1b formed at the inner bottom of the storage portion 1a. Since the concave groove portion 1c for restricting the movement in the width direction is provided, the positioning can be easily performed only by incorporating the support plate 7 and the conductor plate 8 from above the central terminal 3.
[0038]
In addition, since the partition wall 1b that isolates the fixed contact 2a and the central terminal 3 is formed on the inner bottom of the storage unit 1a, the case terminal side wall due to an arc generated during the switch operation is formed. Since the influence of deposits can be reduced, the insulation can be improved and the quality can be stabilized.
[0039]
In the above-described embodiment, the position where one end side of the support plate 7 is fixed to the conductor plate 8 is the same side as the fixed side of the movable contact 9, but it may be fixed to the opposite side. In this case, the locking position between the leaf spring 10 and the conductor plate 8 is opposite to the fixed position of the movable contact 9. Also in this case, it is needless to say that the same effect as the above-described configuration can be obtained. When the support plate 7 and the conductor plate 8 are fixed together with the movable contact 9, the assembly can be further simplified.
[0040]
【The invention's effect】
As described above, the structure of the switch device according to the present invention includes a center terminal that movably supports the conductor plate, a support plate that has one end locked to the conductor plate and the other end locked to the center terminal, and a conductor. The support plate has a spring property. The contact plate includes a leaf spring that is bent between the plate and the center terminal and includes a leaf spring that cooperates with the support plate and movably supports the conductor plate on the center terminal. It is formed so that it can be bent with a plate material, and one end side of this support plate is fixed to the conductor plate together with a movable contact, and the other end side is rotatably locked to the center terminal, and this locking portion is used as a fulcrum. Since the conductor plate is formed so as to be displaceable, the component structure of the contact mechanism is simplified, and the workability can be improved without making the assembly complicated.
[0041]
In addition, an operating surface portion formed of an inclined surface is formed on the slide member, and an abutting portion that contacts the operating surface portion is formed on the conductor plate, and the operating surface portion comes into contact with the sliding movement of the slide member. Since the conductor plate is displaced in a direction substantially perpendicular to the sliding movement direction, the switch device can be reduced in size and thickness.
[0042]
In addition, a locking projection is formed at the central terminal to which the support plate is locked, and an opening that is inserted into the locking projection and a bent piece that is connected to the opening are provided on the support plate. Since the opening and the bent piece are locked to the locking protrusion, the position of the support plate is restricted to the center terminal, so that it can be easily aligned simply by incorporating the support plate from above the center terminal. As a result, assembly workability is improved.
[0043]
In addition, the housing has a case in which a fixed contact and a central terminal are fixed to the inner bottom surface of the storage portion, and a partition wall is formed on the inner bottom of the storage portion to isolate the fixed contact from the central terminal. Therefore, it is possible to reduce the influence of the deposits on the case side wall on the side of the central terminal due to the arc generated when the switch is operated, improve the insulation, and stabilize the quality.
[0044]
In addition, the partition wall is provided with a concave groove for position regulation that restricts the movement of the conductor plate in the width direction. Therefore, it is possible to easily align the assembly by simply incorporating the conductor plate from above the center terminal. Workability is improved.
[0045]
Further, the movable contact is caulked and fixed to the conductor plate, and one end of the support plate is fixed to the conductive plate by fixing the movable contact to the mounting portion of the movable contact of the conductive plate. Can be simplified.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing when a switch device according to an embodiment of the present invention is off.
FIG. 2 is a longitudinal sectional view showing the switch device of the present invention when it is turned on.
FIG. 3 is a plan view showing a state in which a cover and a part of the slide member are partially broken according to the present invention.
4 is a cross-sectional view taken along line 4-4 of FIG. 2 of the present invention.
FIG. 5 is a plan view showing a contact mechanism portion of the present invention.
FIG. 6 is a front view showing the same contact mechanism part of the present invention.
FIG. 7 is an explanatory view showing an initial (off) state of the contact mechanism of the present invention.
FIG. 8 is an explanatory view showing a state immediately before the conductor plate of the present invention is self-propelled.
FIG. 9 is an explanatory view showing a state immediately after the conductor plate of the present invention is self-propelled and the contact is turned on.
FIG. 10 is an explanatory view showing a state in which the slide member of the present invention is locked and the contact is turned on.
FIG. 11 is an explanatory view showing a state immediately before the slide is unlocked, the conductor plate is self-propelled and the contact is turned off.
FIG. 12 is a longitudinal sectional view showing a conventional switch device when it is off.
FIG. 13 is a longitudinal sectional view showing when the conventional switch device is on.
FIG. 14 is a partial explanatory view showing a conventional contact mechanism.
[Explanation of symbols]
1 case
1a Storage part
1b Bulkhead
1c Concave groove
1d Mounting protrusion
1e Shaft hole
1f Return spring locking part
2 Fixed terminal
2a Fixed contact
3 Central terminal
3a Support plate locking projection
3b Protrusion for locking leaf spring
3c, 3d Locking groove (locking part)
3e Locking protrusion
4 frames
4a Mounting leg
5 Lock pin
6 Return spring
7 Support plate
7a Window hole
7b insertion hole
7c opening
7d bent piece
8 Conductor plate
8a Window hole
8b Projection
8c Contact part
9 Moving contact
10 leaf spring
11 Slide member
11a base
11b Operation unit
11c Conductor plate storage
11d Working surface
11e lock cam
11f Return spring storage
12 Cover
12a Hook part

Claims

A fixed contact, a conductor plate having a movable contact that is brought into contact with and away from the fixed contact, a center terminal that movably supports the conductor plate, one end locked to the conductor plate, and the other end locked to the center terminal A support plate, a leaf spring that is bent and disposed between the conductor plate and the central terminal, and movably supports the conductor plate on the central terminal in cooperation with the support plate; and the conductor A sliding member that displaces the plate in a direction substantially perpendicular to the sliding movement direction due to the spring property of the leaf spring and moves the movable contact to and away from the fixed contact, and the support plate has a spring property The one end of the support plate is fixed to the conductor plate and the other end is rotatably locked to the center terminal, and the conductor plate can be displaced with the locking portion as a fulcrum. a formed switching device such that, the supporting A locking projection is formed on the central terminal to which the plate is locked, and an opening inserted into the locking projection and a bent piece connected to the opening are formed on the support plate. The position of the support plate is restricted to the center terminal by the opening and the bent piece being locked to the locking projection, and the movable contact is caulked and fixed to the conductor plate, A switch device characterized in that one end of the support plate is fixed to the conductor plate by fixing the movable contact to a mounting portion of the movable contact of the conductor plate .

The slide member is formed with an operation surface portion formed of an inclined surface, and the conductor plate is formed with a contact portion that contacts the operation surface portion, and the operation surface portion is moved along with the slide movement of the slide member. 2. The switch device according to claim 1, wherein the switch plate is slidably contacted with the contact portion and the conductor plate is displaced in a direction substantially perpendicular to a sliding movement direction.

A partition that has a storage portion, includes a case in which the fixed contact and the central terminal are fixed to the inner bottom surface of the storage portion, and that separates the fixed contact and the central terminal from the inner bottom portion of the storage portion claim 1 or 2, wherein the switch device is characterized in that the formation of the.

The switch device according to claim 3 , wherein the partition wall is formed with a position-regulating groove that restricts movement of the conductor plate in the width direction .