JP4295599B2 - Switch device - Google Patents

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JP4295599B2
JP4295599B2 JP2003398597A JP2003398597A JP4295599B2 JP 4295599 B2 JP4295599 B2 JP 4295599B2 JP 2003398597 A JP2003398597 A JP 2003398597A JP 2003398597 A JP2003398597 A JP 2003398597A JP 4295599 B2 JP4295599 B2 JP 4295599B2
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contact
contact portion
fixed contact
switch device
individual fixed
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JP2005158636A (en
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昌之 武田
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Description

本発明は、車載用のスイッチ装置に係り、特に自動車のドアーの開閉時のランプ点灯用として使用されるスイッチ装置の構造に関する。   The present invention relates to an on-vehicle switch device, and more particularly to a structure of a switch device used for lighting a lamp when an automobile door is opened and closed.

従来のスイッチ装置の構造としては、ランプ負荷の切り換えが必要なため、高負荷の領域に使用できるマイクロスイッチ型の検出スイッチが使用されている(例えば、特許文献1参照)。   As a structure of a conventional switch device, since a lamp load needs to be switched, a microswitch type detection switch that can be used in a high load region is used (for example, see Patent Document 1).

以下、車載用として使用される従来のマイクロスイッチ型のスイッチ装置の構造を図に基づいて説明する。図9は従来のマイクロスイッチ型のスイッチ装置の構造を示す断面図である。   Hereinafter, the structure of a conventional microswitch type switch device used for in-vehicle use will be described with reference to the drawings. FIG. 9 is a cross-sectional view showing the structure of a conventional microswitch type switch device.

図において、スイッチ装置はベース52とカバー53とからハウジング51が構成されている。ベース52には、コンタクト56、57、58が挿入されており、その一端が外方に突出されて接続コンタクト60、61、62が形成されている。また、コンタクト57、58は上下位置に対向して配置されている。   In the drawing, the switch device includes a base 51 and a cover 53 that constitute a housing 51. Contacts 56, 57, 58 are inserted into the base 52, and one end of each contact protrudes outward to form connection contacts 60, 61, 62. Further, the contacts 57 and 58 are arranged to face the vertical position.

コンタクト56には可動コンタクト64の一端が固定されており、可動コンタクト64は金属シートで折り返された状態で配置され、他端側の上下に球型コンタクト65が設けられている。この球型コンタクト65はコンタクト57と58の間に位置され、上側がコンタクト58と接触している。   One end of a movable contact 64 is fixed to the contact 56, the movable contact 64 is disposed in a state of being folded back by a metal sheet, and spherical contacts 65 are provided on the upper and lower sides of the other end side. The spherical contact 65 is located between the contacts 57 and 58, and the upper side is in contact with the contact 58.

カバー53の上面の開口66内にはスイッチングタペット67が可動に案内されている。スイッチングタペット67には水平支持されたレバー68を有し、このレバー68は可動コンタクト64のばね作用によって上方へ付勢されてカバー53の直下に保持されている。
また、カバー53の開口66の周辺には、ゴムベロー72が装着されており、このゴムベロー72とスイッチングタペット67の上方部が嵌合されてスイッチ内が密封されている。
A switching tappet 67 is movably guided in the opening 66 on the upper surface of the cover 53. The switching tappet 67 has a horizontally supported lever 68, which is urged upward by the spring action of the movable contact 64 and is held directly below the cover 53.
Further, a rubber bellows 72 is mounted around the opening 66 of the cover 53, and the rubber bellows 72 and the upper part of the switching tappet 67 are fitted to seal the inside of the switch.

スイッチングタペット67が作動されると、可動コンタクト64が下方へ押され、切り換え点を超えると可動コンタクト64が反転して球型コンタクト65が下方へ移動しコンタクト57と接触して接点が切り換わる。この状態からスイッチが開放されると、可動コンタクト64が再び反転して最初の状態に戻るものとなる。   When the switching tappet 67 is actuated, the movable contact 64 is pushed downward, and when the switching point is exceeded, the movable contact 64 is reversed, the spherical contact 65 moves downward, contacts the contact 57, and the contact is switched. When the switch is released from this state, the movable contact 64 is reversed again to return to the initial state.

特開平7−73776号公報JP-A-7-73776

従来、自動車のドアーの開閉時のランプ点灯用としてのスイッチ装置は、高負荷領域のマイクロスイッチ型スイッチ装置で対応していたが、昨今では自動車市場においても電子化が進み、微小領域で使用可能なスイッチ装置の要求がでてきている。この場合、接触信頼性の問題で微小領域には高負荷領域のマイクロスイッチ型スイッチ装置を使用することができないため、別途、微小領域の専用のスイッチ装置を使用していた。
このため、それぞれの用途に合わせて、専用のスイッチ装置を使用しなければならず、車のモデルチェンジ等の際には使用するスイッチ装置を新たに検討しなおす必要があり、高負荷領域から微小領域への変更が発生した場合には、大きな変更を余儀なくされるという問題があった。
Conventionally, the switch device for lighting the lamp when opening and closing the door of an automobile has been supported by a micro-switch type switch device in a high load area, but nowadays it has become electronic in the automobile market and can be used in a minute area There is a need for a new switching device. In this case, because of the problem of contact reliability, the micro-switch type switch device in the high load region cannot be used in the micro region, and therefore a dedicated switch device in the micro region has been used separately.
For this reason, a dedicated switch device must be used for each application, and it is necessary to reexamine the switch device to be used when changing the model of a car. When a change to the area occurs, there is a problem that a large change is unavoidable.

したがって、本発明では上述した問題点を解決し、高負荷領域及び微小領域の両方に対応でき、かつ高負荷時のアークによる消耗に強く、安定した接触が得られるスイッチ装置を提供することを目的とする。   Accordingly, an object of the present invention is to solve the above-described problems, and to provide a switch device that can cope with both a high load region and a minute region, is strong against arc consumption at a high load, and can obtain a stable contact. And

上記課題を解決するために本発明では第1の解決手段として、収納部を有するハウジングと、前記収納部の内底面から立設された共通固定接点及び個別固定接点と、前記ハウジングに昇降可能に収容された駆動部材と、この駆動部材に保持され駆動部材の昇降移動に伴って前記共通固定接点及び個別固定接点と摺接する可動接点とを備え、前記可動接点には、前記共通固定接点と摺接する第1の接点部と、前記個別固定接点とそれぞれ個別に摺接する独立した第2及び第3の接点部を形成し、前記個別固定接点に、前記駆動部材の昇降方向と直交する方向に沿って、前記第2の接点部と接触するアーク消耗用の第1の接触部と、前記第2の接点部と前記第1の接触部との接触より遅れて前記第3の接点部と接触するように第2の接触部を形成し、この第2の接触部の下面側を前記第3の接点部との摺接面とすると共に、前記第1の接触部の下面側の前記第2の接点部との摺接軌跡上に、前記第2の接点部と離脱する非導通部を形成した構成とした。 In order to solve the above-mentioned problems, the present invention provides as a first solution means a housing having a storage portion, a common fixed contact and an individual fixed contact erected from the inner bottom surface of the storage portion, and being able to move up and down in the housing. And a movable contact held by the drive member and slidably contacting the common fixed contact and the individual fixed contact as the drive member moves up and down. The movable contact includes the common fixed contact and the sliding contact. A first contact portion that is in contact with each other and an independent second and third contact portions that are individually slidably contacted with the individual fixed contact are formed, and the individual fixed contact is along a direction orthogonal to the ascending / descending direction of the drive member. Te contact, a first contact portion for arc wasting come in contact with the second contact portion, and the third contact portion later than contact with said first contact portion and second contact portion forming a second contact portion such that The lower surface side of the second contact portion is a sliding contact surface with the third contact portion, and on the sliding contact locus with the second contact portion on the lower surface side of the first contact portion, The second contact portion is separated from the non-conductive portion.

また、第2の解決手段として、前記個別固定接点には、前記第1の接触部の下面側に連続した切り欠き部を形成し、この切り欠き部で前記非導通部を形成した構成とした。
また、第3の解決手段として、前記ハウジングの収納部の内底面には、前記共通固定接点と前記個別固定接点を前記駆動部材の昇降方向と直交する方向に沿って並列に配置した構成とした。
Further, as a second solution, the individual fixed contact is formed with a continuous notch on the lower surface side of the first contact part, and the non-conduction part is formed with the notch. .
As a third solution, the common fixed contact and the individual fixed contact are arranged in parallel along the direction orthogonal to the ascending / descending direction of the drive member on the inner bottom surface of the housing housing portion. .

また、第4の解決手段として、前記個別固定接点は、前記第1の接触部と前記第2の接触部を段差状に形成し、前記第1の接触部を前記第2の接触部より上面側に突出させて形成した構成とした。
また、第5の解決手段として、前記可動接点には、前記第1及び第2、第3の接点部に貴金属からなる接点チップが固着され、これら接点チップが固着された前記可動接点により前記共通固定接点及び前記個別固定接点を両面側から挟持して摺接するようにした構成とした。
Further, as a fourth solution, the individual fixed contact includes the first contact portion and the second contact portion formed in a step shape, and the first contact portion is located above the second contact portion. The structure is formed so as to protrude to the side.
As a fifth solution, a contact tip made of a noble metal is fixed to the first, second, and third contact portions of the movable contact, and the common contact is made by the movable contact to which the contact tip is fixed. The fixed contact and the individual fixed contact are sandwiched from both sides to be in sliding contact.

上述したように、本発明のスイッチ装置は、収納部を有するハウジングと、収納部の内底面から立設された共通固定接点及び個別固定接点と、ハウジングに昇降可能に収容された駆動部材と、駆動部材に保持され駆動部材の昇降移動に伴って共通固定接点及び個別固定接点と摺接する可動接点とを備え、可動接点には、共通固定接点と摺接する第1の接点部と、個別固定接点と摺接する第2及び第3の接点部を形成し、個別固定接点に、駆動部材の昇降方向と直交する方向に沿って、第2の接点部と早く接触するアーク消耗用の第1の接触部と、これより遅れて第3の接点部と接触する第2の接触部を形成し、第2の接触部の下面側を第3の接点部との摺接面とすると共に、第1の接触部の下面側の第2の接点部との摺接軌跡上に、第2の接点部と離脱する非導通部を形成したことから、高負荷で使用した場合においても、接点の切り換え時に発生するアーク対応として、アーク消耗用の接触部を設けているので、切り換えを行なう通常の接触部への消耗が低減されて安定した接触が得られるため、接点の長寿命化が図れる。
また、アーク接触ポイントの下面側である摺接軌跡上に接点部との非導通部を形成したので、アーク消耗による接点同士の削れを防止でき、耐久性が向上する。
As described above, the switch device of the present invention includes a housing having a storage portion, a common fixed contact and an individual fixed contact erected from the inner bottom surface of the storage portion, a drive member that is housed in a manner that can be raised and lowered in the housing, The movable contact includes a movable contact that is held by the drive member and that is in sliding contact with the common fixed contact and the individual fixed contact as the drive member is moved up and down. The movable contact includes a first contact portion that is in sliding contact with the common fixed contact, and an individual fixed contact. The second and third contact portions are formed in sliding contact with each other, and the first contact for arc consumption that comes into contact with the second contact portion quickly along the direction perpendicular to the ascending / descending direction of the driving member is formed on the individual fixed contact. And a second contact portion that comes into contact with the third contact portion later than the first contact portion, the lower surface side of the second contact portion is used as a sliding contact surface with the third contact portion, and the first contact portion The second contact is on the sliding contact locus with the second contact portion on the lower surface side of the contact portion. Since a non-conducting part that is separated from the part is formed, a contact part for arc consumption is provided for handling arcs that occur when switching contacts even when used at high loads. Since the wear on the part is reduced and stable contact is obtained, the life of the contact can be extended.
In addition, since the non-conductive portion with the contact portion is formed on the sliding contact locus on the lower surface side of the arc contact point, the contacts can be prevented from being scraped by arc consumption, and the durability is improved.

また、個別固定接点には、第1の接触部の下面側に連続した切り欠き部を形成し、この切り欠き部で非導通部を形成したことから、アーク接触ポイントの下面側である摺接軌跡上を切り欠くことにより、簡単な構成でアーク消耗による接点同士の削れを防止できる。
また、ハウジングの収納部の内底面には、共通固定接点と個別固定接点を駆動部材の昇降方向と直交する方向に沿って並列に配置したことから、それぞれの固定接点と可動接点の接点部との摺接面を長く設けられるので、ロングストローク対応が可能となり、設計の自由度が向上する。
In addition, the individual fixed contact is formed with a continuous notch portion on the lower surface side of the first contact portion, and a non-conducting portion is formed by this notch portion, so that the sliding contact on the lower surface side of the arc contact point is formed. By cutting out the locus, it is possible to prevent the contacts from being scraped by arc consumption with a simple configuration.
In addition, since the common fixed contact and the individual fixed contact are arranged in parallel along the direction orthogonal to the ascending / descending direction of the driving member on the inner bottom surface of the housing housing portion, the contact portion of each fixed contact and movable contact Since a long sliding contact surface is provided, it is possible to cope with a long stroke, and the degree of freedom in design is improved.

また、個別固定接点は、第1の接触部と第2の接触部を段差状に形成し、第1の接触部を第2の接触部より上面側に突出させて形成したことから、簡単な構成でアーク消耗用の接触部を形成でき、安定した接触が得られる。
また、可動接点には、第1及び第2、第3の接点部に貴金属からなる接点チップが固着され、これら接点チップが固着された可動接点により共通固定接点及び個別固定接点を両面側から挟持して摺接するようにしたことから、接点チップを設けることにより高負荷時のアークによる消耗にも対応でき、両面摺動構造であることから、微小領域でも接触が安定し信頼性が向上する。また、一つのスイッチで高負荷領域及び微小領域の両方に対応できるため、モデルチェンジの際の変更が容易に行なえる。
In addition, the individual fixed contact is simple because the first contact portion and the second contact portion are formed in a stepped shape, and the first contact portion is protruded from the second contact portion to the upper surface side. The contact part for arc consumption can be formed by the configuration, and stable contact can be obtained.
In addition, a contact tip made of a noble metal is fixed to the first, second, and third contact portions of the movable contact, and the common fixed contact and the individual fixed contact are sandwiched from both sides by the movable contact to which these contact tips are fixed. Therefore, the contact tip can be provided to cope with arc wear during high loads, and the double-sided sliding structure stabilizes the contact even in a minute region and improves the reliability. In addition, since it is possible to cope with both a high load area and a minute area with a single switch, it is possible to easily change the model.

以下、本発明のスイッチ装置の実施形態を図1乃至図8に示す。図1は本発明のスイッチ装置の断面図、図2はスイッチ装置の異なる方向からみた要部断面図、図3はハウジングの断面図、図4は可動接点の平面図、図5は可動接点の正面図、図6はアーク消耗用の接触部がオンした状態を示す断面図、図7は切り換え用の接触部がオンした状態を示す断面図、図8はアーク消耗用の接触部からオフする状態を示す断面図である。   Embodiments of the switch device of the present invention are shown in FIGS. 1 is a cross-sectional view of the switch device of the present invention, FIG. 2 is a cross-sectional view of an essential part of the switch device viewed from different directions, FIG. 3 is a cross-sectional view of a housing, FIG. FIG. 6 is a cross-sectional view showing a state where the contact portion for arc consumption is turned on, FIG. 7 is a cross-sectional view showing a state where the contact portion for switching is turned on, and FIG. 8 is turned off from the contact portion for arc consumption. It is sectional drawing which shows a state.

図1乃至図3において、ハウジング1は、合成樹脂などの絶縁材からなり、内部に収納部1aを有する上面開口状の箱型に形成されている。このハウジング1の収納部1aの内底面には、導電性の金属板からなる平板状の共通固定接点2、及び個別固定接点3が開口部に向かって立設して形成されている。また、共通固定接点2と個別固定接点3とは、内底面(後述する駆動部材9の昇降方向と直交する方向)に沿って並列に配置されている。   1 to 3, the housing 1 is made of an insulating material such as a synthetic resin, and is formed in a box shape with an upper surface opening having an accommodating portion 1a therein. On the inner bottom surface of the housing 1a of the housing 1, a flat common fixed contact 2 made of a conductive metal plate and an individual fixed contact 3 are erected toward the opening. Further, the common fixed contact 2 and the individual fixed contact 3 are arranged in parallel along the inner bottom surface (a direction perpendicular to the ascending / descending direction of a driving member 9 described later).

前記共通固定接点2は、基部がハウジング1の内底部にインサート成形などの方法で埋設されており、収納部1a内に突出された長尺状の摺接部2aと、ハウジング1の外方へ導出された出力端子部(図示せず)とを有している。この共通固定接点2の表面には、銀などの良導性の貴金属めっきが施されたものとなっている。   The common fixed contact 2 has a base portion embedded in the inner bottom portion of the housing 1 by a method such as insert molding, a long slidable contact portion 2a protruding into the storage portion 1a, and outward of the housing 1. And a derived output terminal portion (not shown). The surface of the common fixed contact 2 is plated with a highly conductive noble metal such as silver.

前記個別固定接点3は、同じく基部がハウジング1の内底部にインサート成形などの方法で埋設されており、収納部1a内に突出された略Z字状の第1及び第2の摺接部3a、3bと、ハウジング1の外方へ導出された出力端子部(図示せず)とを有している。この個別固定接点3の表面にも、銀などの良導性の貴金属めっきが施されたものとなっている。   Similarly, the individual fixed contact 3 has a base portion embedded in the inner bottom portion of the housing 1 by a method such as insert molding, and is substantially Z-shaped first and second sliding contact portions 3a protruding into the storage portion 1a. 3b and an output terminal portion (not shown) led out of the housing 1. The surface of the individual fixed contact 3 is also plated with a highly conductive noble metal such as silver.

前記個別固定接点3には、前記第1及び第2の摺接部3a、3bが互いに平行して設けられており、この第1及び第2の摺接部3a、3bの先端がそれぞれ第1及び第2の接触部3c、3dとなっている。また、前記個別固定接点3の第1の接触部3c及び第1の摺接部3aの下面側には切り欠き部3eが設けられている。この切り欠き部3eが設けられることにより、第1の摺接部3aの摺接範囲が第2の摺接部3bの摺接範囲に比べて、短くなるように形成されている。   The individual fixed contact 3 is provided with the first and second sliding contact portions 3a and 3b in parallel with each other, and the tips of the first and second sliding contact portions 3a and 3b are respectively first. And second contact portions 3c and 3d. Further, a notch portion 3e is provided on the lower surface side of the first contact portion 3c and the first sliding contact portion 3a of the individual fixed contact 3. By providing the notch portion 3e, the sliding contact range of the first sliding contact portion 3a is formed to be shorter than the sliding contact range of the second sliding contact portion 3b.

また、前記個別固定接点3の第1の接触部3c及び第1の摺接部3aの下面側に前記切り欠き部3eを設ける代わりに、絶縁性の材料を用いて非導電性の領域を設けるようにしてもよく、この場合、前記切り欠き部3eに前記ハウジング1の材料と同じ合成樹脂を成形時に一体的に充填することにより非導電部を形成するようにしても良い。この場合には、前記第1の摺接部3aを摺接する後述する可動接点7の第2の接点部7cが、切り欠き部3eに落ち込むことがなくなるので、動作フィーリングが良好となる。   Further, instead of providing the notch portion 3e on the lower surface side of the first contact portion 3c and the first sliding contact portion 3a of the individual fixed contact 3, a non-conductive region is provided using an insulating material. In this case, a non-conductive portion may be formed by filling the cutout portion 3e with the same synthetic resin as the material of the housing 1 at the time of molding. In this case, since the second contact portion 7c of the movable contact 7 to be described later that makes sliding contact with the first sliding contact portion 3a does not fall into the notch portion 3e, the operation feeling becomes good.

また、前記個別固定接点3は、前記第1の接触部3cと第2の接触部3dとが段差状となるように形成されており、前記第1の接触部3cが前記第2の接触部3dよりも上面側に突出した状態で形成されている。このように個別固定接点3の第1及び第2の接触部3c、3dに段差を設けることにより、後述する可動接点7の接点部が接触する際の接触タイミングを異ならせることが可能となっている。   The individual fixed contact 3 is formed such that the first contact portion 3c and the second contact portion 3d are stepped, and the first contact portion 3c is the second contact portion. It is formed in a state of protruding to the upper surface side from 3d. Thus, by providing a step in the first and second contact portions 3c and 3d of the individual fixed contact 3, it becomes possible to vary the contact timing when the contact portion of the movable contact 7 described later contacts. Yes.

また、前記ハウジング1の出力端子部(図示せず)が導出された底面側には、この出力端子部と接続されるハーネス4が配設されており、このハーネス4によって検出信号が出力されるものとなる。また、ハウジング1の底面側には、前記ハーネス4及び出力端子部を覆うように被覆部材5が固着されている。   A harness 4 connected to the output terminal portion is disposed on the bottom surface side of the housing 1 from which an output terminal portion (not shown) is led, and a detection signal is output by the harness 4. It will be a thing. A covering member 5 is fixed to the bottom surface side of the housing 1 so as to cover the harness 4 and the output terminal portion.

また、前記ハウジング1の収納部1aには、ばね係止部1bが設けられており、このばね係止部1bにはコイル状の復帰ばね6の一端側が係止されている。また、ハウジング1の一側部には、取付孔1cが形成されており、この取付孔1cにネジなどを挿入して、スイッチ装置を適宜、所定の場所へ取り付けるものとなっている。   Further, the housing 1a of the housing 1 is provided with a spring locking portion 1b, and one end side of the coiled return spring 6 is locked to the spring locking portion 1b. A mounting hole 1c is formed on one side of the housing 1, and a screw or the like is inserted into the mounting hole 1c so that the switch device is appropriately mounted at a predetermined location.

図4及び図5に示すように、可動接点7は、ばね性を有する導電性の金属板を打ち抜きフォーミングすることによりクリップ状に形成されている。この可動接点7は、方形の環状に連結した桟部を折り曲げて対向させた基部7aと、これらの基部7aから延設され、それぞれが弾性力を有した状態で当接されて形成された第1及び第2、第3の接点部7b、7c、7dとを有している。
また、これらの第1及び第2、第3の接点部7b、7c、7dの先端には、銀又は銀合金などの貴金属からなる接点チップ8が固着されている。
As shown in FIGS. 4 and 5, the movable contact 7 is formed in a clip shape by punching and forming a conductive metal plate having a spring property. The movable contact 7 is formed by a base portion 7a which is formed by bending and opposing a rectangular ring-shaped crosspiece, and a base portion 7a extending from the base portion 7a. 1 and second and third contact portions 7b, 7c and 7d.
Further, a contact tip 8 made of a noble metal such as silver or silver alloy is fixed to the tips of the first, second and third contact portions 7b, 7c and 7d.

前記可動接点7は、前記収納部1aに立設された前記共通固定接点2、及び個別固定接点3と摺接するものとなっており、前記第1の接点部7bが共通固定接点2の摺接部2aと摺接され、前記第2の接点部7cが個別固定接点3の第1の摺接部3aと摺接され、前記第3の接点部7dが個別固定接点3の第2の摺接部3bとそれぞれ摺接されるものとなっている。   The movable contact 7 is in sliding contact with the common fixed contact 2 and the individual fixed contact 3 erected on the storage portion 1 a, and the first contact portion 7 b is in sliding contact with the common fixed contact 2. The second contact portion 7 c is slidably contacted with the first slidable contact portion 3 a of the individual fixed contact 3, and the third contact portion 7 d is slidably contacted with the individual fixed contact 3. Each is in sliding contact with the portion 3b.

駆動部材9は、合成樹脂などの絶縁材で形成され、前記ハウジング1の収納部1aに昇降可能に収容されている。この駆動部材9には、前記可動接点7を保持する保持部9aと、前記復帰ばね6の他端側が係止されるばね係止部9bが形成されており、可動接点7を保持した状態で復帰ばね6の弾性力により上方ヘ付勢されている。また、駆動部材9の上面側には押圧部9cが設けられており、この押圧部9cがハウジング1の上面側外方へ突出されている。   The drive member 9 is formed of an insulating material such as synthetic resin and is housed in the housing portion 1a of the housing 1 so as to be movable up and down. The drive member 9 is formed with a holding portion 9 a that holds the movable contact 7 and a spring locking portion 9 b that is locked to the other end of the return spring 6. It is biased upward by the elastic force of the return spring 6. A pressing portion 9 c is provided on the upper surface side of the drive member 9, and the pressing portion 9 c protrudes outward on the upper surface side of the housing 1.

蓋体10は、合成樹脂などの絶縁材で略方形の平板状に形成されており、前記ハウジング1の収納部1aの開口部を塞ぐように取り付けられている。また、前記蓋体10には、開口10aが設けられ、この開口10aに前記駆動部材9の押圧部9cが挿通されて突出されている。   The lid 10 is formed of an insulating material such as synthetic resin in a substantially rectangular flat plate shape, and is attached so as to close the opening of the housing portion 1 a of the housing 1. The lid 10 is provided with an opening 10a, through which the pressing portion 9c of the driving member 9 is inserted and protrudes.

また、前記蓋体10の上面側には、ゴムなどの弾性材からなるシールド部材11が取り付けられている。このシールド部材11の上面側には可撓性を有するドーム部11aが形成されており、このドーム部11aの先端が前記駆動部材9の押圧部9cの上端側に固着されている。そして、この押圧部9cが押圧された際には、前記ドーム部11aが撓むことにより押圧部9cの昇降移動を可能にすると共に、前記蓋体10の開口10aと押圧部9cとの隙間をシールドするようになっている。   A shield member 11 made of an elastic material such as rubber is attached to the upper surface side of the lid body 10. A flexible dome portion 11 a is formed on the upper surface side of the shield member 11, and the tip of the dome portion 11 a is fixed to the upper end side of the pressing portion 9 c of the driving member 9. And when this press part 9c is pressed, while the said dome part 11a bends, while allowing the press part 9c to move up and down, the clearance gap between the opening 10a of the said cover 10 and the press part 9c is made. It comes to shield.

また、ハウジング1の上面側には、合成樹脂などの絶縁材で下面開口の箱型に形成されたカバー部材12が嵌着されている。このカバー部材12には、前記駆動部材9の押圧部9c及びシールド部材11のドーム部11aが突出する挿通孔12aが形成されており、この挿通孔12aから押圧部9c及びドーム部11aを突出した状態でハウジング1の上面に嵌着されている。この時、前記シールド部材11は、ハウジング1とカバー部材12とによって弾性力を持って挟持された状態となり、収納部1a内の機密性が保たれた状態となっている。   Further, a cover member 12 formed in a box shape with an opening on the lower surface is fitted on the upper surface side of the housing 1 with an insulating material such as synthetic resin. The cover member 12 is formed with an insertion hole 12a from which the pressing portion 9c of the driving member 9 and the dome portion 11a of the shield member 11 protrude, and the pressing portion 9c and the dome portion 11a protrude from the insertion hole 12a. In the state, it is fitted on the upper surface of the housing 1. At this time, the shield member 11 is sandwiched between the housing 1 and the cover member 12 with an elastic force, and the confidentiality in the storage portion 1a is maintained.

次に、上記構成のスイッチ装置の動作を図6乃至図8を用いて説明する。
まず、図1に示す初期の状態(駆動部材9の押圧部9cが押されていない状態)では、駆動部材9は復帰ばね6の弾性力によって上方へ付勢されている。この状態では、可動接点7の第1の接点部7bが共通固定接点2の摺接部2aと接触されており、第2及び第3の接点部7c、7dは個別固定接点3とは離間しており回路はオフとなっている。
Next, the operation of the switch device configured as described above will be described with reference to FIGS.
First, in the initial state shown in FIG. 1 (a state where the pressing portion 9 c of the driving member 9 is not pressed), the driving member 9 is urged upward by the elastic force of the return spring 6. In this state, the first contact portion 7 b of the movable contact 7 is in contact with the sliding contact portion 2 a of the common fixed contact 2, and the second and third contact portions 7 c and 7 d are separated from the individual fixed contact 3. The circuit is off.

この状態から、図6に示すように、駆動部材9の押圧部9cが押圧されると、駆動部材9は復帰ばね6の付勢力に抗して下方へ移動され、可動接点7も下方へ移動する。そして第1の接点部7bが共通固定接点2の摺接部2aを下方へ摺接すると共に、第2の接点部7cが個別固定接点3の第1の接触部3cに接触して回路がオンする。この時、スイッチ装置に接続される負荷回路が高負荷領域の場合には、この接触ポイントにアークが発生するものとなる。   From this state, as shown in FIG. 6, when the pressing portion 9c of the drive member 9 is pressed, the drive member 9 is moved downward against the urging force of the return spring 6, and the movable contact 7 is also moved downward. To do. The first contact portion 7b slides downward on the sliding contact portion 2a of the common fixed contact 2, and the second contact portion 7c contacts the first contact portion 3c of the individual fixed contact 3 to turn on the circuit. . At this time, when the load circuit connected to the switch device is in a high load region, an arc is generated at this contact point.

次に、図7に示すように、更に押圧部9cが押圧されると、可動接点7の第2の接点部7cが個別固定接点3の第1の摺接部3aを下方へ摺接するのに伴って、可動接点7の第3の接点部7dが個別固定接点3の第2の接触部3dに接触する。この時には、可動接点7の第2の接点部7cと、個別固定接点3の第1の摺接部3aがすでに接触しているため、この接触ポイントにはアークは発生しない。そして、回路はオン状態を維持している。 Next, as shown in FIG. 7, when the pressing portion 9 c is further pressed, the second contact portion 7 c of the movable contact 7 slidably contacts the first sliding contact portion 3 a of the individual fixed contact 3 downward. with it, the third contact portion 7d of the movable contact 7 contacts the second contact portion 3d of the individual fixed contact 3. At this time, since the second contact portion 7c of the movable contact 7 and the first sliding contact portion 3a of the individual fixed contact 3 are already in contact, no arc is generated at this contact point. The circuit is kept on.

次に、図8に示すように、更に押圧部9cが押圧されると、可動接点7の第3の接点部7dが個別固定接点3の第2の摺接部3bを下方へ摺接するのに伴って、可動接点7の第2の接点部7cが個別固定接点3の第1の摺接部3aを下方へ摺接して、下面側に設けられた切り欠き部3eへと移動する。そして、更に押圧部9cが押圧されると、可動接点7の第2の接点部7cは個別固定接点3の第1の摺接部3aを外れた状態で前記切り欠き部3e内を移動するものとなる。
この状態では、可動接点7の第1の接点部7bと第3の接点部7dとで共通固定接点2と個別固定接点3とが接続されており、回路はオン状態を維持している。
Next, as shown in FIG. 8, when the pressing portion 9 c is further pressed, the third contact portion 7 d of the movable contact 7 slides downward on the second sliding contact portion 3 b of the individual fixed contact 3. Accordingly, the second contact portion 7c of the movable contact 7 slides downwardly on the first sliding contact portion 3a of the individual fixed contact 3 and moves to the notch portion 3e provided on the lower surface side. When the pressing portion 9c is further pressed, the second contact portion 7c of the movable contact 7 moves within the cutout portion 3e in a state where the first sliding contact portion 3a of the individual fixed contact 3 is removed. It becomes.
In this state, the common fixed contact 2 and the individual fixed contact 3 are connected by the first contact portion 7b and the third contact portion 7d of the movable contact 7, and the circuit is maintained in the ON state.

この場合、前記共通固定接点2と個別固定接点3とは、ハウジング1の収納部1aの内底面に前記駆動部材9の昇降方向と直交する方向に沿って並列に配置されており、このように共通固定接点2と個別固定接点3とを並列に配置することにより、共通固定接点2及び個別固定接点3と、前記可動接点7の第1及び第3の接点部7b、7dとの摺接面を長くすることができるので、ロングストローク対応が可能となり、設計の自由度が向上するものとなる。   In this case, the common fixed contact 2 and the individual fixed contact 3 are arranged in parallel along the direction perpendicular to the ascending / descending direction of the drive member 9 on the inner bottom surface of the housing portion 1a of the housing 1, as described above. By arranging the common fixed contact 2 and the individual fixed contact 3 in parallel, the sliding contact surface between the common fixed contact 2 and the individual fixed contact 3 and the first and third contact portions 7b and 7d of the movable contact 7 is provided. Can be made long, so that it is possible to cope with a long stroke, and the degree of freedom in design is improved.

また、前記個別固定接点3は、第1の接触部3cと第2の接触部3dを段差状に形成してあり、第1の接触部3cを第2の接触部3dより上面側に突出させて形成してあるので、簡単な構成でアーク消耗用の接触部を形成でき、安定した接触が得られるものとなる。   The individual fixed contact 3 has a first contact portion 3c and a second contact portion 3d formed in a stepped shape, and the first contact portion 3c protrudes from the second contact portion 3d to the upper surface side. Therefore, the contact portion for arc consumption can be formed with a simple configuration, and stable contact can be obtained.

また、この時、高負荷回路の切り換えによりアークが発生する接触ポイントである、個別固定接点3の第1の接触部3cと接触する可動接点7の第2の接点部7cは、スイッチ装置の切り換え時の移動ストローク中に、個別固定接点3の第1の摺接部3aから外れて、前記切り欠き部3e内を移動することになるので、アーク消耗により荒れた接点表面同士が摺動して過剰な削れを引き起こすことを防止でき、耐久性が向上すると共に、良好な動作フィーリングが得られるものとなる。   At this time, the second contact portion 7c of the movable contact 7 that contacts the first contact portion 3c of the individual fixed contact 3, which is a contact point where an arc is generated by switching of the high load circuit, is switched by the switch device. During the movement stroke, the contact surfaces that have been rough due to arc wear are slid because the individual fixed contact 3 moves away from the first sliding contact portion 3a and moves in the cutout portion 3e. Excessive shaving can be prevented, durability is improved, and a good operational feeling is obtained.

また、回路切り換え用としての、個別固定接点3の第2接触部3d及び第2摺接部3bと、これと摺接する可動接点7の第3の接点部7dへのアーク消耗が発生しないことから、接点表面同士の良好な摺動が得られるので、接点の長寿命化が図れるものとなる。   Further, since the second contact part 3d and the second slidable contact part 3b of the individual fixed contact 3 and the third contact part 7d of the movable contact 7 slidably in contact therewith are not used for circuit switching. Since good sliding between the contact surfaces can be obtained, the contact life can be extended.

図8の状態から、押圧部9cへの押圧力を解除すると、駆動部材9が復帰ばね6の付勢力によって上方へ移動され、図1に示す初期の状態に復帰する。この時、可動接点7も駆動部材9と共に初期の位置まで移動され、第2及び第3の接点部7c、7dが個別固定接点3から離間され、回路がオフ状態となる。   When the pressing force to the pressing portion 9c is released from the state of FIG. 8, the drive member 9 is moved upward by the urging force of the return spring 6, and returns to the initial state shown in FIG. At this time, the movable contact 7 is also moved to the initial position together with the drive member 9, the second and third contact portions 7c and 7d are separated from the individual fixed contact 3, and the circuit is turned off.

上記した実施例の構成によれば、前記可動接点7に、前記共通固定接点2と摺接する第1の接点部7bと、前記個別固定接点3と摺接する第2及び第3の接点部7c、7dを形成し、前記個別固定接点3に、前記駆動部材9の昇降方向と直交する方向に沿って、前記第2の接点部7cと早く接触するアーク消耗用の第1の接触部3cと、これより遅れて前記第3の接点部7dと接触する第2の接触部3dを形成して、前記第2の接触部3dの下面側を前記第3の接点部7dとの摺接面とすると共に、前記第1の接触部3cの下面側の前記第2の接点部7cとの摺接軌跡上に、前記第2の接点部7cと離脱する非導通部となる前記切り欠き部3eを形成したことから、高負荷で使用した場合においても、接点の切り換え時に発生するアーク対応として、アーク消耗用の前記第1の接触部3cを設けているので、切り換えを行なう通常の前記第2の接触部3dへの消耗が低減されて安定した接触が得られるため、接点の長寿命化が図れるものとなっている。
また、アーク接触ポイントの下面側である摺接軌跡上に切り欠き部3eを形成したので、アーク消耗による接点同士の削れを防止でき、耐久性が向上するものとなる。
According to the configuration of the above-described embodiment, the movable contact 7 has the first contact portion 7b slidably in contact with the common fixed contact 2, the second and third contact portions 7c slidably in contact with the individual fixed contact 3, A first contact portion 3c for arc consumption that quickly contacts the second contact portion 7c along the direction perpendicular to the ascending / descending direction of the driving member 9 to the individual fixed contact 3; A second contact portion 3d that comes into contact with the third contact portion 7d is formed later than this, and the lower surface side of the second contact portion 3d is used as a slidable contact surface with the third contact portion 7d. At the same time, the notch portion 3e serving as a non-conductive portion that separates from the second contact portion 7c is formed on the sliding contact locus with the second contact portion 7c on the lower surface side of the first contact portion 3c. Therefore, even when used at high loads, it can handle arcs that occur when switching contacts. In addition, since the first contact portion 3c for arc consumption is provided, since the consumption to the normal second contact portion 3d for switching is reduced and stable contact is obtained, the length of the contact is increased. Life expectancy can be improved.
In addition, since the cutout portion 3e is formed on the sliding contact locus on the lower surface side of the arc contact point, it is possible to prevent the contacts from being scraped due to arc consumption, and the durability is improved.

また、前記可動接点7には、第1及び第2、第3の接点部7b、7c、7dに貴金属からなる接点チップ8が固着されており、これら接点チップ8が固着された可動接点7により前記共通固定接点2及び個別固定接点3を両面側から挟持して摺接するようにしたことから、接点チップ8を設けることにより高負荷時のアークによる消耗にも対応でき、可動接点7はクリップ状の両面摺動構造であることから、微小領域でも接触が安定し信頼性が向上するものとなる。また、一つのスイッチで高負荷領域及び微小領域の両方に対応できるため、客先でのモデルチェンジの際の変更が容易に行なえるものとなる。   The movable contact 7 has a contact tip 8 made of a noble metal fixed to the first, second and third contact portions 7b, 7c and 7d, and the movable contact 7 to which the contact tip 8 is fixed. Since the common fixed contact 2 and the individual fixed contact 3 are sandwiched from both sides and slidably contacted, the contact tip 8 can be provided to cope with arc consumption during high loads, and the movable contact 7 has a clip shape. Because of this double-sided sliding structure, the contact is stable even in a minute region and the reliability is improved. In addition, since it is possible to deal with both a high load area and a minute area with a single switch, it is possible to easily change the model at the customer.

尚、上記実施例では、前記個別固定接点3の第1の摺接部3aの下面側に、前記切り欠き部3eを形成して、アーク消耗により荒れた接点表面同士が摺動して過剰な削れを引き起こすことを防止するようにしたが、この切り欠き部3eの代わりに、前記ハウジング1の成形時に、切り欠き部3eに前記ハウジング1の材料と同じ合成樹脂を一体的に充填することにより非導電部を形成するようにしても良い。   In the above embodiment, the notch portion 3e is formed on the lower surface side of the first sliding contact portion 3a of the individual fixed contact 3, and the contact surfaces rough due to arc consumption slide and are excessive. In this case, instead of the cutout portion 3e, the cutout portion 3e is integrally filled with the same synthetic resin as the material of the housing 1 instead of the cutout portion 3e. A non-conductive portion may be formed.

また、切り換え時のアーク消耗用として、前記個別固定接点3の第1の接触部3cと第2の接触部3dとを段差状にして、第1の接触部3cと可動接点7の第2の接点部7cとが、第2の接触部3dと可動接点7の第3の接点部7dと接触するよりも早く接触するように形成したが、個別固定接点3の第1及び第2の接触部3c、3dは段差状とはせずに、可動接点7の第2及び第3の接点部7c、7dとを長さを変えて段差状に形成するようにしても良い。   Further, for arc consumption at the time of switching, the first contact portion 3c and the second contact portion 3d of the individual fixed contact 3 are stepped so that the second contact of the first contact portion 3c and the movable contact 7 is a second step. The contact portion 7c is formed so as to come into contact earlier than the second contact portion 3d and the third contact portion 7d of the movable contact 7, but the first and second contact portions of the individual fixed contact 3 are formed. The second and third contact portions 7c and 7d of the movable contact 7 may be formed in steps with different lengths, without forming steps 3c and 3d.

本発明のスイッチ装置を示す断面図である。It is sectional drawing which shows the switch apparatus of this invention. 本発明のスイッチ装置を異なる方向からみた要部断面図である。It is principal part sectional drawing which looked at the switch apparatus of this invention from the different direction. 本発明のハウジングを示す断面図である。It is sectional drawing which shows the housing of this invention. 本発明の可動接点を示す平面図である。It is a top view which shows the movable contact of this invention. 本発明の可動接点を示す正面図である。It is a front view which shows the movable contact of this invention. 本発明のアーク消耗用の接触部がオンした状態を示す断面図である。It is sectional drawing which shows the state which the contact part for arc consumption of this invention turned on. 本発明の切り換え用の接触部がオンした状態を示す断面図である。It is sectional drawing which shows the state which the contact part for switching of this invention turned on. 本発明のアーク消耗用の接触部からオフする状態を示す断面図である。It is sectional drawing which shows the state turned off from the contact part for arc consumption of this invention. 従来のスイッチ装置を示す断面図である。It is sectional drawing which shows the conventional switch apparatus.

符号の説明Explanation of symbols

1:ハウジング
1a:収納部
1b:ばね係止部
1c:取付孔
2:共通固定接点
2a:摺接部
3:個別固定接点
3a:第1の摺接部
3b:第2の摺接部
3c:第1の接触部
3d:第2の接触部
3e:切り欠き部(非導通部)
4:ハーネス
5:被覆部材
6:復帰ばね
7:可動接点
7a:基部
7b:第1の接点部
7c:第2の接点部
7d:第3の接点部
8:接点チップ
9:駆動部材
9a:保持部
9b:ばね係止部
9c:押圧部
10:蓋体
10a:開口
11:シールド部材
11a:ドーム部
12:カバー部材
12a:挿通孔
DESCRIPTION OF SYMBOLS 1: Housing 1a: Storage part 1b: Spring latching part 1c: Mounting hole 2: Common fixed contact 2a: Sliding contact part 3: Individual fixed contact 3a: 1st sliding contact part 3b: 2nd sliding contact part 3c: 1st contact part 3d: 2nd contact part 3e: Notch part (non-conduction part)
4: Harness 5: Cover member 6: Return spring 7: Movable contact 7a: Base 7b: First contact 7c: Second contact 7d: Third contact 8: Contact tip 9: Drive member 9a: Holding Part 9b: Spring locking part 9c: Pressing part 10: Lid 10a: Opening 11: Shield member 11a: Dome part 12: Cover member 12a: Insertion hole

Claims (5)

収納部を有するハウジングと、前記収納部の内底面から立設された共通固定接点及び個別固定接点と、前記ハウジングに昇降可能に収容された駆動部材と、この駆動部材に保持され駆動部材の昇降移動に伴って前記共通固定接点及び個別固定接点と摺接する可動接点とを備え、前記可動接点には、前記共通固定接点と摺接する第1の接点部と、前記個別固定接点とそれぞれ個別に摺接する独立した第2及び第3の接点部を形成し、前記個別固定接点に、前記駆動部材の昇降方向と直交する方向に沿って、前記第2の接点部と接触するアーク消耗用の第1の接触部と、前記第2の接点部と前記第1の接触部との接触より遅れて前記第3の接点部と接触するように第2の接触部を形成し、この第2の接触部の下面側を前記第3の接点部との摺接面とすると共に、前記第1の接触部の下面側の前記第2の接点部との摺接軌跡上に、前記第2の接点部と離脱する非導通部を形成したことを特徴とするスイッチ装置。 A housing having a storage portion, a common fixed contact and an individual fixed contact erected from the inner bottom surface of the storage portion, a drive member housed in the housing so as to be able to be raised and lowered, and an elevation of the drive member held by the drive member A movable contact that slides in contact with the common fixed contact and the individual fixed contact as it moves is provided. The movable contact includes a first contact portion that slides in contact with the common fixed contact, and the individual fixed contact separately. independent to form the second and third contact portions contact said the individual fixed contact, along a direction orthogonal to the elevating direction of the drive member, first for arc wasting come in contact with the second contact portion The second contact portion is formed so as to come into contact with the third contact portion after the contact between the first contact portion, the second contact portion, and the first contact portion. The lower surface side of the part is the sliding contact surface with the third contact part While, on the sliding contact path between the second contact portion of the lower surface side of the first contact portion, the switch device characterized by the formation of the non-conductive portion to leave said second contact portion. 前記個別固定接点には、前記第1の接触部の下面側に連続した切り欠き部を形成し、この切り欠き部で前記非導通部を形成したことを特徴とする請求項1記載のスイッチ装置。   2. The switch device according to claim 1, wherein the individual fixed contact is formed with a continuous notch on the lower surface side of the first contact part, and the non-conduction part is formed with the notch. . 前記ハウジングの収納部の内底面には、前記共通固定接点と前記個別固定接点を前記駆動部材の昇降方向と直交する方向に沿って並列に配置したことを特徴とする請求項1、又は2記載のスイッチ装置。   The said common fixed contact and the said individual fixed contact are arrange | positioned in parallel along the direction orthogonal to the raising / lowering direction of the said drive member at the inner bottom face of the accommodating part of the said housing. Switch device. 前記個別固定接点は、前記第1の接触部と前記第2の接触部を段差状に形成し、前記第1の接触部を前記第2の接触部より上面側に突出させて形成したことを特徴とする請求項1乃至3の何れかに記載のスイッチ装置。   The individual fixed contact is formed by forming the first contact portion and the second contact portion in a step shape, and projecting the first contact portion to the upper surface side from the second contact portion. The switch device according to any one of claims 1 to 3. 前記可動接点には、前記第1及び第2、第3の接点部に貴金属からなる接点チップが固着され、これら接点チップが固着された前記可動接点により前記共通固定接点及び前記個別固定接点を両面側から挟持して摺接するようにしたことを特徴とする請求項1乃至4の何れかに記載のスイッチ装置。   A contact tip made of a noble metal is fixed to the first, second and third contact portions of the movable contact, and the common fixed contact and the individual fixed contact are double-sided by the movable contact to which these contact tips are fixed. The switch device according to any one of claims 1 to 4, wherein the switch device is slidably contacted from the side.
JP2003398597A 2003-11-28 2003-11-28 Switch device Expired - Fee Related JP4295599B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003398597A JP4295599B2 (en) 2003-11-28 2003-11-28 Switch device
CNB2004100925920A CN1324621C (en) 2003-11-28 2004-11-16 Switch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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JP4295599B2 true JP4295599B2 (en) 2009-07-15

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10290443B2 (en) 2017-04-28 2019-05-14 Omron Corporation Switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6396695B2 (en) * 2014-06-20 2018-09-26 矢崎総業株式会社 Clip terminal
CN105206438B (en) * 2015-10-14 2017-06-16 桂林航天电子有限公司 A kind of push type travel switch of adverse environment resistant

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JP2001084867A (en) * 1999-09-13 2001-03-30 Matsushita Electric Ind Co Ltd Switch
DE10237282B4 (en) * 2001-08-20 2022-11-10 Omron Corp. Switches, push button switches and rotary lever switches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10290443B2 (en) 2017-04-28 2019-05-14 Omron Corporation Switch

Also Published As

Publication number Publication date
CN1622244A (en) 2005-06-01
CN1324621C (en) 2007-07-04
JP2005158636A (en) 2005-06-16

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