JP2017139196A

JP2017139196A - Movable element and contact device using the same

Info

Publication number: JP2017139196A
Application number: JP2016021001A
Authority: JP
Inventors: 麗井上; Rei Inoue
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2016-02-05
Filing date: 2016-02-05
Publication date: 2017-08-10
Anticipated expiration: 2036-02-05
Also published as: JP6715473B2

Abstract

PROBLEM TO BE SOLVED: To provide a movable element capable of reducing the possibility that plural leaf springs become positionally irregular when mounted, and a contact device using the same.SOLUTION: A movable member 15 is connected to a movable contact 14 at a first end portion 153 thereof, and movable between a closed position where the movable contact 14 is brought into contact with the fixed contact 13 by elastic deformation with a second end portion 154 thereof as a fulcrum, and an open position where the movable contact 14 is away from the fixed contact 13. The moveable element 15 is formed of plural leaf springs (a first leaf spring 15a, a second leaf spring 15b, and a third leaf spring 15c) laminated in the thickness direction. At least one leaf spring (for example, the first leaf spring 15a) out of the plural leaf springs has coupling pieces 156 and 157 for sandwiching the other leaf springs (the second leaf spring 15b and the third leaf spring 15c) out of the plural springs therebetween while the other leaf springs are bent.SELECTED DRAWING: Figure 1

Description

本発明は、可動子及びこれを用いた接点装置に関する。 The present invention relates to a mover and a contact device using the same.

従来、複数の板ばねを重ね合わせて形成された三連ばねアセンブリ（可動子）を有する電磁リレーアセンブリ（接点装置）がある（特許文献１参照）。 2. Description of the Related Art Conventionally, there is an electromagnetic relay assembly (contact device) having a triple spring assembly (movable element) formed by overlapping a plurality of leaf springs (see Patent Document 1).

特許文献１の三連ばねアセンブリは、３つのばねから構成されている。 The triple spring assembly of Patent Document 1 is composed of three springs.

特表２０１２−５１７０９２号公報Special table 2012-517092 gazette

上記の三連ばねアセンブリ（可動子）を電磁リレーアセンブリ（接点装置）に取り付ける際には、たとえば三連ばねアセンブリの一端をかしめて、その後、他端をかしめる。このとき、三連ばねアセンブリの一端をかしめると、重ね合された３つのばねは、所定の方向（ばねの長尺方向又は短尺方向）において不揃いとなる可能性がある。そのため、一端をかしめた後、他端をかしめる際には３つのばねが不揃いであることが原因で、結合不良（カジリ、削れ等）が発生する可能性がある。 When attaching the triple spring assembly (movable element) to the electromagnetic relay assembly (contact device), for example, one end of the triple spring assembly is caulked and then the other end is caulked. At this time, if one end of the triple spring assembly is crimped, the three superimposed springs may become uneven in a predetermined direction (long or short direction of the spring). Therefore, after caulking one end, when caulking the other end, there is a possibility that poor coupling (caulking, scraping, etc.) may occur due to the unevenness of the three springs.

本発明は上記課題に鑑みてなされ、取り付ける際に複数の板ばねが不揃いとなる可能性を低くすることができる可動子及びこれを用いた接点装置を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a movable element and a contact device using the same, which can reduce the possibility that a plurality of leaf springs will be uneven when attached.

本発明に係る第１の態様の可動子は、一方向の第１端部に可動接点が接続され、前記第１端部とは反対側の第２端部を支点として弾性変形により前記可動接点が固定接点に接触する閉位置と、前記可動接点が前記固定接点から離れる開位置との間で移動する可動子であって、厚さ方向に重ねられた複数の板ばねで形成されており、前記複数の板ばねのうち少なくとも１つの板ばねは、前記複数の板ばねのうち残りの板ばねを折り曲げられた状態で挟み込む結合片を有することを特徴とする。 In the movable element of the first aspect according to the present invention, a movable contact is connected to a first end in one direction, and the movable contact is elastically deformed with a second end opposite to the first end as a fulcrum. Is a movable element that moves between a closed position where the fixed contact contacts the fixed contact and an open position where the movable contact moves away from the fixed contact, and is formed by a plurality of leaf springs stacked in the thickness direction, At least one leaf spring of the plurality of leaf springs has a coupling piece that sandwiches the remaining leaf springs of the plurality of leaf springs in a bent state.

また、本発明に係る第２の態様の可動子１５は、第１の態様において、前記複数の板ばねの前記第２端部には、厚さ方向に貫通する貫通孔が設けられており、前記結合片は、前記貫通孔の一部の縁に沿って折り曲げられるように構成されていることを特徴とする。 Further, in the first aspect, the movable element 15 of the second aspect according to the present invention is provided with a through-hole penetrating in the thickness direction at the second end portion of the plurality of leaf springs, The coupling piece is configured to be bent along a part of an edge of the through hole.

また、本発明に係る第３の態様の可動子１５は、第２の態様において、前記複数の板ばねは、前記結合片を有する第１板ばねと、前記結合片を有しない第２板ばね及び第３板ばねとを含み、前記第３板ばねは、前記第１板ばねの前記結合片が折り曲げられた状態で前記結合片の先端部と接しており、前記第２板ばねは、前記第１板ばねと前記第３板ばねとの間に配置されており、前記第３板ばねの貫通孔の径は、第２板ばねの貫通孔の径よりも大きいことを特徴とする。 According to the third aspect of the present invention, the movable element 15 according to the second aspect is the second aspect, wherein the plurality of leaf springs are a first leaf spring having the coupling piece and a second leaf spring not having the coupling piece. And the third leaf spring, the third leaf spring is in contact with the tip of the coupling piece in a state where the coupling piece of the first leaf spring is bent, and the second leaf spring is It is arrange | positioned between the 1st leaf | plate spring and the said 3rd leaf | plate spring, The diameter of the through-hole of the said 3rd leaf | plate spring is larger than the diameter of the through-hole of a 2nd leaf | plate spring, It is characterized by the above-mentioned.

また、本発明に係る第４の態様の可動子１５は、第２または第３の態様において、前記支点は、前記第２端部において固定ピンで固定された部位であり、前記複数の板ばねの前記貫通孔は、前記可動子における前記可動接点と前記固定ピンとの最短経路となる領域とは異なる領域に設けられていることを特徴とする。 According to the fourth aspect of the present invention, in the movable element 15 of the second or third aspect, the fulcrum is a portion fixed by a fixing pin at the second end, and the plurality of leaf springs The through hole is provided in a region different from a region which is the shortest path between the movable contact and the fixed pin in the movable element.

また、本発明に係る第５の態様の可動子１５は、第２〜第４の態様のいずれかにおいて、前記複数の板ばねは、前記一方向が長尺な形状であり、前記結合片は、前記複数の板ばねの短尺方向に沿って折り曲げられるように構成されていることを特徴とする。 Moreover, the mover 15 according to the fifth aspect of the present invention is the movable element 15 according to any one of the second to fourth aspects, wherein the plurality of leaf springs are long in the one direction, and the coupling piece is The plurality of leaf springs are configured to be bent along the short direction.

また、本発明に係る第６の態様の接点装置Ａ１は、第１〜第５の態様のいずれかの可動子と、前記固定接点と、前記可動接点と、前記可動子の前記第２端部が取り付けられる端子板とを備えることを特徴とする。 Further, the contact device A1 of the sixth aspect according to the present invention is the movable element according to any one of the first to fifth aspects, the fixed contact, the movable contact, and the second end of the movable element. The terminal board to which is attached.

また、本発明に係る第７の態様の接点装置Ａ１は、第６の態様において、前記複数の板ばねの前記第２他端部には、厚さ方向に貫通する貫通孔が設けられており、前記端子板において、厚さ方向に貫通し、前記可動子を取り付ける際に前記貫通孔と重なり合う別の貫通孔が設けられたことを特徴とする。 According to a seventh aspect of the present invention, in the contact device A1 according to the sixth aspect, the second other end portion of the plurality of leaf springs is provided with a through-hole penetrating in the thickness direction. The terminal board is provided with another through hole that penetrates in the thickness direction and overlaps the through hole when the movable element is attached.

本発明によれば、可動子及びこれを用いた接点装置は、当該可動子の一端をかしめた場合であっても、複数の板ばねが不揃いとなる可能性を低くすることができる。 According to the present invention, the mover and the contact device using the same can reduce the possibility that the plurality of leaf springs are uneven even when one end of the mover is caulked.

図１Ａは、本発明の実施形態に係る電磁継電器における可動子の斜視図であり、図１Ｂは、同上の電磁継電器が備える可動子の分解斜視図である。FIG. 1A is a perspective view of the mover in the electromagnetic relay according to the embodiment of the present invention, and FIG. 1B is an exploded perspective view of the mover provided in the electromagnetic relay of the same. 図２は、同上の電磁継電器の断面図である。FIG. 2 is a sectional view of the electromagnetic relay same as above. 図３Ａは、同上の電磁継電器の一部であって、接点装置のオン状態を示す断面図である。図３Ｂは、同上の電磁継電器の一部であって、接点装置のオフ状態を示す断面図である。FIG. 3A is a cross-sectional view showing a part of the electromagnetic relay same as above and showing an ON state of the contact device. FIG. 3B is a cross-sectional view showing a part of the electromagnetic relay same as above and showing an OFF state of the contact device. 図４は、同上の電磁継電器の分解斜視図である。FIG. 4 is an exploded perspective view of the electromagnetic relay. 図５は、同上の電磁継電器が備える可動子における貫通孔の配置を説明するための斜視図である。FIG. 5 is a perspective view for explaining the arrangement of through holes in the mover provided in the electromagnetic relay. 図６Ａ〜図６Ｆは、同上の電磁継電器が備える可動子の組み立て手順を説明するための図である。6A to 6F are views for explaining a procedure for assembling the mover included in the electromagnetic relay. 図７は、同上の電磁継電器が備える可動子の組み立て後の断面図である。FIG. 7 is a cross-sectional view after assembly of the mover provided in the electromagnetic relay of the above. 図８Ａは、同上の電磁継電器が備える可動子の変形例の斜視図であり、図８Ｂは、同上の電磁継電器が備える可動子の変形例の断面図である。FIG. 8A is a perspective view of a modified example of the mover provided in the electromagnetic relay of the above, and FIG. 8B is a cross-sectional view of a modified example of the mover provided in the electromagnetic relay of the same.

以下の実施形態は、一般に可動子及びこれを用いた接点装置に関し、より詳細には複数の板ばねを重ねることで形成された可動子及びこれを用いた接点装置に関する。 The following embodiments generally relate to a mover and a contact device using the same, and more particularly to a mover formed by stacking a plurality of leaf springs and a contact device using the same.

（実施形態）
本発明の実施形態に係る電磁継電器１００について、図１Ａ，１Ｂ〜図８Ａ，８Ｂを用いて説明する。 (Embodiment)
The electromagnetic relay 100 which concerns on embodiment of this invention is demonstrated using FIG. 1A, 1B-FIG. 8A, 8B.

電磁継電器１００は、図２〜図４に示すように、固定接点１３と、可動接点１４と、可動子１５と、コイル２と、接極子６と、伝達ばね８とを備えている。可動接点１４は、固定接点１３に接触する閉位置と、固定接点１３から離れた開位置との間を移動する（図３Ａ，３Ｂ参照）。可動子１５は、一方向の第１端部１５３に可動接点１４が設けられ、第１端とは反対側の第２端部１５４を支点として可動接点１４を閉位置と開位置との間で移動させる。接極子６は、コイル２の通電で生じる磁束により、可動子１５を駆動する。 As shown in FIGS. 2 to 4, the electromagnetic relay 100 includes a fixed contact 13, a movable contact 14, a mover 15, a coil 2, an armature 6, and a transmission spring 8. The movable contact 14 moves between a closed position in contact with the fixed contact 13 and an open position away from the fixed contact 13 (see FIGS. 3A and 3B). The movable element 15 is provided with a movable contact 14 at a first end 153 in one direction, and the movable contact 14 is located between a closed position and an open position with the second end 154 opposite to the first end as a fulcrum. Move. The armature 6 drives the mover 15 by magnetic flux generated by energization of the coil 2.

伝達ばね８は、接極子６と可動子１５との間に設けられ、接極子６と可動子１５との間で力を伝達する。 The transmission spring 8 is provided between the armature 6 and the mover 15 and transmits a force between the armature 6 and the mover 15.

以下、本実施形態に係る電磁継電器１００について詳細に説明する。ただし、以下に説明する構成は、本発明の一例に過ぎず、本発明は下記の実施形態に限定されることはなく、この実施形態以外であっても、本発明に係る技術的思想を逸脱しない範囲であれば、設計等に応じて種々の変更が可能である。 Hereinafter, the electromagnetic relay 100 according to the present embodiment will be described in detail. However, the configuration described below is only an example of the present invention, and the present invention is not limited to the following embodiment, and the technical idea according to the present invention is not deviated from this embodiment. Various changes can be made in accordance with the design or the like as long as they are not.

また、以下では、図２において、固定接点１３と可動接点１４とが並ぶ方向を上下方向とし、固定接点１３から見て可動接点１４側を上方、その逆を下方として説明する。また、以下では、図２において、第１端子板１１及び第２端子板１２（後述する）が並ぶ方向を左右方向とし、第１端子板１１から見て第２端子板１２側を右方、その逆を左方として説明する。 In the following description, in FIG. 2, the direction in which the fixed contact 13 and the movable contact 14 are arranged will be referred to as the up-down direction, and the movable contact 14 side as viewed from the fixed contact 13 will be referred to as the upper side. In the following, in FIG. 2, the direction in which the first terminal plate 11 and the second terminal plate 12 (described later) are arranged in the left-right direction, and the second terminal plate 12 side as viewed from the first terminal plate 11 is on the right side. The reverse is described as the left side.

なお、図２、図４には、これらの方向（上、下、左、右）を表す矢印を示すが、この矢印は、単に説明を補助する目的で記載しているに過ぎず、実体を伴わない。また、上記の方向の規定は、本実施形態の電磁継電器１００の使用形態を限定する趣旨ではない。 FIGS. 2 and 4 show arrows indicating these directions (up, down, left, and right), but these arrows are merely described for the purpose of assisting the explanation, and the substance is shown. Not accompanied. Further, the definition of the direction is not intended to limit the usage pattern of the electromagnetic relay 100 of the present embodiment.

本実施形態では、電磁継電器１００がアイドリングストップ機能を有する自動車に搭載されている場合を例とする。そして、本実施形態では、電磁継電器１００が、走行用のバッテリから負荷（たとえば、ＬＥＤランプやインバータ）への直流電力の供給路に接点装置Ａ１（後述する）を挿入するように接続されて用いられる場合を例とする。このため、本実施形態の電磁継電器１００では、接点装置Ａ１を開閉することで、バッテリから負荷への直流電力の供給状態を切り替えることができる。 In the present embodiment, the case where the electromagnetic relay 100 is mounted on an automobile having an idling stop function is taken as an example. In this embodiment, the electromagnetic relay 100 is connected and used so as to insert a contact device A1 (described later) into a DC power supply path from a traveling battery to a load (for example, an LED lamp or an inverter). For example, For this reason, in the electromagnetic relay 100 of this embodiment, the supply state of the DC power from the battery to the load can be switched by opening and closing the contact device A1.

本実施形態の電磁継電器１００は、いわゆるヒンジ型リレーである。本実施形態の電磁継電器１００は、図２、図４に示すように、接点装置Ａ１と、駆動装置Ｂ１と、ケースＣ１とを備えている。 The electromagnetic relay 100 of this embodiment is a so-called hinge type relay. As shown in FIGS. 2 and 4, the electromagnetic relay 100 of the present embodiment includes a contact device A1, a drive device B1, and a case C1.

接点装置Ａ１は、図２、図４に示すように、一対の端子板１と、一対の固定接点１３と、一対の可動接点１４と、可動子１５とを備えている。以下では、一対の端子板１のうち左側の端子板１を「第１端子板１１」、右側の端子板１を「第２端子板１２」という。ここで、第２端子板１２が、可動子１５が取り付けられる端子板に相当する。 As shown in FIGS. 2 and 4, the contact device A <b> 1 includes a pair of terminal plates 1, a pair of fixed contacts 13, a pair of movable contacts 14, and a movable element 15. Hereinafter, the left terminal board 1 of the pair of terminal boards 1 is referred to as a “first terminal board 11”, and the right terminal board 1 is referred to as a “second terminal board 12”. Here, the second terminal plate 12 corresponds to a terminal plate to which the mover 15 is attached.

第１端子板１１は、導電性材料（たとえば、銅（Cu））から左右方向に長い平板状に形成されている。第１端子板１１の長尺方向（左右方向）の中間部には、図４に示すように、厚さ方向（上下方向）に貫通する一対の取付孔１１１が設けられている。一対の取付孔１１１には、それぞれ一対の固定接点１３の有する軸部１３１が挿入される。そして、各軸部１３１が第１端子板１１にかしめられることにより、一対の固定接点１３が第１端子板１１に取り付けられている。なお、一対の固定接点１３は、第１端子板１１と一体に構成されていてもよい。 The first terminal board 11 is formed in a flat plate shape that is long in the left-right direction from a conductive material (for example, copper (Cu)). As shown in FIG. 4, a pair of mounting holes 111 penetrating in the thickness direction (vertical direction) is provided in the middle portion of the first terminal board 11 in the longitudinal direction (left-right direction). The shaft portions 131 of the pair of fixed contacts 13 are inserted into the pair of mounting holes 111, respectively. The pair of fixed contacts 13 are attached to the first terminal plate 11 by caulking each shaft portion 131 to the first terminal plate 11. The pair of fixed contacts 13 may be configured integrally with the first terminal board 11.

第２端子板１２は、導電性材料（たとえば、銅（Cu））から左右方向に長い平板状に形成されている。第２端子板１２の長尺方向（左右方向）の中間部には、厚さ方向（上下方向）に貫通する一対の固定孔１２１が設けられている。一対の固定孔１２１は、可動子１５を第２端子板１２に固定するために用いられる。 The second terminal board 12 is formed in a flat plate shape that is long in the left-right direction from a conductive material (for example, copper (Cu)). A pair of fixing holes 121 penetrating in the thickness direction (vertical direction) is provided in the middle portion of the second terminal board 12 in the longitudinal direction (left-right direction). The pair of fixing holes 121 are used to fix the mover 15 to the second terminal plate 12.

第１端子板１１及び第２端子板１２は、それぞれ第１端子部１１２及び第２端子部１２２を有している。第１端子部１１２は、矩形板状に形成されており、第１端子板１１の長尺方向の一端（左端）から上方に突出している。第２端子部１２２は、矩形板状に形成されており、第２端子板１２の長尺方向の一端（右端）から上方に突出している。第１端子部１１２及び第２端子部１２２には、それぞれねじ等が挿入される第１端子孔１１３及び第２端子孔１２３が設けられている。第１端子部１１２及び第２端子部１２２は、たとえばねじ止めにより、バッテリと負荷とを繋ぐ電路に電気的に接続される。 The first terminal plate 11 and the second terminal plate 12 have a first terminal portion 112 and a second terminal portion 122, respectively. The first terminal portion 112 is formed in a rectangular plate shape, and protrudes upward from one end (left end) in the longitudinal direction of the first terminal plate 11. The second terminal portion 122 is formed in a rectangular plate shape, and protrudes upward from one end (right end) in the longitudinal direction of the second terminal plate 12. The first terminal portion 112 and the second terminal portion 122 are provided with a first terminal hole 113 and a second terminal hole 123 into which screws or the like are inserted, respectively. The 1st terminal part 112 and the 2nd terminal part 122 are electrically connected to the electric circuit which connects a battery and load, for example by screwing.

可動子１５は、導電性材料から左右方向に長い板状に形成されている。本実施形態では、可動子１５は、複数（ここでは、３枚）の板ばねを上下方向に沿って重ね合わせて構成されている（図１Ｂ参照）。可動子１５の長尺方向の第１端部１５３（左端）には、厚さ方向（上下方向）に貫通する一対の取付孔１５２が設けられている（図１Ａ、図１Ｂ参照）。一対の取付孔１５２には、それぞれ一対の可動接点１４の有する軸部１４１が挿入される。そして、各軸部１４１が可動子１５にかしめられることにより、一対の可動接点１４が可動子１５に取り付けられている（図１Ａ参照）。つまり、可動子１５の一方向（長尺方向）の第１端部１５３（左端）に、一対の可動接点１４が設けられている。なお、一対の可動接点１４は、可動子１５と一体に構成されていてもよい。 The mover 15 is formed in a plate shape that is long in the left-right direction from a conductive material. In the present embodiment, the mover 15 is configured by overlapping a plurality (here, three) of leaf springs along the vertical direction (see FIG. 1B). The first end 153 (left end) in the longitudinal direction of the mover 15 is provided with a pair of attachment holes 152 penetrating in the thickness direction (vertical direction) (see FIGS. 1A and 1B). The shaft portions 141 of the pair of movable contacts 14 are inserted into the pair of mounting holes 152, respectively. Each shaft portion 141 is caulked to the movable element 15, whereby the pair of movable contacts 14 are attached to the movable element 15 (see FIG. 1A). That is, the pair of movable contacts 14 is provided at the first end 153 (left end) in one direction (long direction) of the mover 15. The pair of movable contacts 14 may be integrated with the movable element 15.

可動子１５の長尺方向の第２端部１５４（右端）には、厚さ方向（上下方向）に貫通する一対の固定孔１５１が設けられている（図１Ａ、図１Ｂ参照）。可動子１５の第２端部１５４は、第２端子板１２に固定されている（図１Ａ参照）。具体的には、可動子１５の一対の固定孔１５１を第２端子板１２の一対の固定孔１２１に重ね合わせて、これら固定孔１５１，１２１に固定ピン１２４を挿入してかしめることにより、可動子１５が第２端子板１２に固定される（図１Ａ参照）。 The second end 154 (right end) in the longitudinal direction of the mover 15 is provided with a pair of fixing holes 151 penetrating in the thickness direction (vertical direction) (see FIGS. 1A and 1B). The second end 154 of the mover 15 is fixed to the second terminal board 12 (see FIG. 1A). Specifically, by overlapping the pair of fixing holes 151 of the mover 15 with the pair of fixing holes 121 of the second terminal plate 12 and inserting the fixing pins 124 into the fixing holes 151, 121 and caulking, The mover 15 is fixed to the second terminal board 12 (see FIG. 1A).

可動子１５は、長尺方向の第２端部１５４（右端）側で折り曲げられることにより、長尺方向の第１端部１５３（左端）が第１端子板１１と上下方向において間隔を空けて対向するように構成されている。したがって、可動子１５の一対の可動接点１４は、上下方向において第１端子板１１の一対の固定接点１３と対向している。 The movable element 15 is bent on the second end 154 (right end) side in the longitudinal direction, so that the first end 153 (left end) in the longitudinal direction is spaced apart from the first terminal board 11 in the vertical direction. It is comprised so that it may oppose. Therefore, the pair of movable contacts 14 of the mover 15 faces the pair of fixed contacts 13 of the first terminal board 11 in the vertical direction.

可動子１５は、駆動装置Ｂ１によって駆動されることにより、第１端部１５３（左端）とは反対側の第２端部１５４（右端）を支点として、一対の可動接点１４を閉位置と開位置との間で移動させる。ここで、閉位置は、一対の可動接点１４が一対の固定接点１３に接触する位置である（図３Ａ参照）。また、開位置は、一対の可動接点１４が一対の固定接点１３から離れた位置である（図３Ｂ参照）。 The mover 15 is driven by the drive device B1 to open and close the pair of movable contacts 14 with the second end 154 (right end) opposite to the first end 153 (left end) as a fulcrum. Move between positions. Here, the closed position is a position where the pair of movable contacts 14 contacts the pair of fixed contacts 13 (see FIG. 3A). The open position is a position where the pair of movable contacts 14 are separated from the pair of fixed contacts 13 (see FIG. 3B).

一対の可動接点１４が閉位置にあるとき、つまり接点装置Ａ１のオン状態では、第１端子板１１と第２端子板１２とが可動子１５を介して短絡する。したがって、接点装置Ａ１のオン状態では、第１端子板１１と第２端子板１２との間が導通し、バッテリから負荷へ直流電力が供給される。一対の可動接点１４が開位置にあるとき、つまり接点装置Ａ１のオフ状態では、第１端子板１１と第２端子板１２との間が開放されるので、バッテリから負荷へ直流電力が供給されない。 When the pair of movable contacts 14 are in the closed position, that is, in the ON state of the contact device A1, the first terminal plate 11 and the second terminal plate 12 are short-circuited via the movable element 15. Therefore, when the contact device A1 is in the ON state, the first terminal plate 11 and the second terminal plate 12 are electrically connected, and DC power is supplied from the battery to the load. When the pair of movable contacts 14 are in the open position, that is, in the OFF state of the contact device A1, the space between the first terminal plate 11 and the second terminal plate 12 is opened, so that no DC power is supplied from the battery to the load. .

駆動装置Ｂ１は、図２、図４に示すように、コイル２と、ボビン３と、固定子４と、継鉄５と、接極子６と、復帰ばね７と、伝達ばね８とを備えている。また、固定子４と、継鉄５と、接極子６とは、いずれも磁性材料により形成されている。 As shown in FIGS. 2 and 4, the drive device B1 includes a coil 2, a bobbin 3, a stator 4, a yoke 5, an armature 6, a return spring 7, and a transmission spring 8. Yes. The stator 4, the yoke 5, and the armature 6 are all made of a magnetic material.

コイル２は、ボビン３の外周面に電線（たとえば、銅線）を巻き付けることで構成されている。コイル２は、電線の第１端部と第２端部とがそれぞれ電気的に接続される一対のコイル端子２１を有している。コイル２は、一対のコイル端子２１を介して電流を供給されることで通電し、磁束を発生する。ボビン３は、たとえば合成樹脂材料などの電気絶縁性を有する材料により円筒状に形成されている。ボビン３は、その軸方向が左右方向と一致するように配置されている。 The coil 2 is configured by winding an electric wire (for example, a copper wire) around the outer peripheral surface of the bobbin 3. The coil 2 has a pair of coil terminals 21 to which the first end and the second end of the electric wire are electrically connected. The coil 2 is energized by being supplied with current through a pair of coil terminals 21 and generates magnetic flux. The bobbin 3 is formed in a cylindrical shape from a material having electrical insulation properties such as a synthetic resin material. The bobbin 3 is disposed such that its axial direction coincides with the left-right direction.

固定子４は、左右方向に長い円柱状に形成された鉄心である。固定子４は、その長尺方向（左右方向）の両端をボビン３から露出させる形で、ボビン３の中空部３１に挿入されている。固定子４の長尺方向の第１端部（右端）は、中間部よりも径寸法が大きくなっており、接極子６と対向している。以下では、固定子４の第１端部を「吸引部４１」という。また、固定子４の長尺方向の第２端部（左端）は、中間部よりも径寸法が小さくなっており、継鉄５の第１板５１（後述する）に固定されている。 The stator 4 is an iron core formed in a cylindrical shape that is long in the left-right direction. The stator 4 is inserted into the hollow portion 31 of the bobbin 3 such that both ends in the longitudinal direction (left-right direction) are exposed from the bobbin 3. The first end portion (right end) in the longitudinal direction of the stator 4 has a larger diameter than the intermediate portion and faces the armature 6. Hereinafter, the first end portion of the stator 4 is referred to as “suction portion 41”. Further, the second end portion (left end) in the longitudinal direction of the stator 4 has a smaller diameter than the intermediate portion, and is fixed to a first plate 51 (described later) of the yoke 5.

継鉄５は、固定子４及び接極子６と共に、コイル２の通電時に生じる磁束が通る磁路を形成する。継鉄５は、左右方向に長い矩形状の板の中間部が折り曲げられることで、その断面がＬ字状となるように形成されている。継鉄５は、第１板５１と、第２板５２とを有している。第１板５１及び第２板５２は、いずれも矩形板状に形成されている。第１板５１は、コイル２の軸方向（左右方向）の一端側（左側）に設けられている。第１板５１には、厚さ方向（左右方向）に貫通する挿入孔５１１が設けられている。挿入孔５１１には、固定子４の第２端部が挿入されている。第２板５２は、コイル２の下側に設けられている。 The yoke 5 together with the stator 4 and the armature 6 forms a magnetic path through which the magnetic flux generated when the coil 2 is energized passes. The yoke 5 is formed such that its cross section is L-shaped by bending an intermediate portion of a rectangular plate that is long in the left-right direction. The yoke 5 has a first plate 51 and a second plate 52. Both the first plate 51 and the second plate 52 are formed in a rectangular plate shape. The first plate 51 is provided on one end side (left side) of the coil 2 in the axial direction (left-right direction). The first plate 51 is provided with an insertion hole 511 penetrating in the thickness direction (left-right direction). The second end of the stator 4 is inserted into the insertion hole 511. The second plate 52 is provided below the coil 2.

接極子６は、左右方向に長い矩形状の板の中間部６３が折り曲げられることで、その断面がＬ字状となるように形成されている。接極子６は、第１板６１と、第２板６２とを有している。第１板６１及び第２板６２は、いずれも矩形板状に形成されている。また、第１板６１の幅方向の寸法は、第２板６２の幅方向の寸法よりも小さくなっている。ここで、幅方向とは、上下方向及び左右方向のいずれとも略直交する方向である。 The armature 6 is formed so that its cross section is L-shaped by bending an intermediate portion 63 of a rectangular plate that is long in the left-right direction. The armature 6 has a first plate 61 and a second plate 62. Both the first plate 61 and the second plate 62 are formed in a rectangular plate shape. The dimension in the width direction of the first plate 61 is smaller than the dimension in the width direction of the second plate 62. Here, the width direction is a direction substantially orthogonal to both the vertical direction and the horizontal direction.

接極子６の第１板６１は、図２に示すように、突部６１１を備えている。突部６１１は、第１板６１における可動子１５と対向する一面（下面）から下向きに突出している。また、突部６１１は、第１板６１と一体に形成されている。突部６１１の可動子１５と対向する一面は、球面状に形成されている。 The first plate 61 of the armature 6 includes a protrusion 611 as shown in FIG. The protrusion 611 protrudes downward from one surface (lower surface) of the first plate 61 facing the mover 15. Further, the protrusion 611 is formed integrally with the first plate 61. One surface of the protrusion 611 facing the movable element 15 is formed in a spherical shape.

接極子６は、その中間部６３を支点として、第２板６２が固定子４の吸引部４１に接触する第１位置と、第２板６２が固定子４の吸引部４１から離れる第２位置との間で回転可能に構成されている。接極子６が第１位置にあるとき、接極子６の第１板６１は、伝達ばね８を介して可動子１５を押している。また、接極子６が第２位置にあるとき、接極子６の第１板６１は、伝達ばね８を介して可動子１５から押されている。 The armature 6 has a first position where the second plate 62 contacts the suction portion 41 of the stator 4 and a second position where the second plate 62 moves away from the suction portion 41 of the stator 4 with the intermediate portion 63 as a fulcrum. It is comprised so that rotation is possible. When the armature 6 is in the first position, the first plate 61 of the armature 6 pushes the mover 15 via the transmission spring 8. When the armature 6 is in the second position, the first plate 61 of the armature 6 is pressed from the mover 15 via the transmission spring 8.

復帰ばね７は、金属製の板ばねから断面がＬ字状となるように形成されている。復帰ばね７は、一対の第１片７１と、第２片７２とを一体に形成して構成されている。一対の第１片７１は、いずれも継鉄５の第２板５２に固定されている。第２片７２は、接極子６の第２板６２に固定されている。復帰ばね７は、接極子６が第１位置にあるときに撓むように構成されている。そして、復帰ばね７は、元の状態に復帰しようとすることで、接極子６を第１位置から第２位置へと移動させる向きの力を、接極子６に作用させる。 The return spring 7 is formed from a metal leaf spring so that its cross section is L-shaped. The return spring 7 is configured by integrally forming a pair of first pieces 71 and second pieces 72. The pair of first pieces 71 are both fixed to the second plate 52 of the yoke 5. The second piece 72 is fixed to the second plate 62 of the armature 6. The return spring 7 is configured to bend when the armature 6 is in the first position. The return spring 7 causes the armature 6 to be applied with a force in a direction to move the armature 6 from the first position to the second position by returning to the original state.

つまり、復帰ばね７は、弾性力により、接極子６を第１位置から第２位置へと移動させる向きの力を接極子６に作用させるように構成されている。 That is, the return spring 7 is configured to cause the armature 6 to act on the armature 6 in a direction to move the armature 6 from the first position to the second position by an elastic force.

伝達ばね８は、接極子６と可動子１５との間に設けられ、接極子６と可動子１５との間で力を伝達する。つまり、本実施形態では、接極子６から伝達ばね８を介して可動子１５に力が伝達され、可動子１５から伝達ばね８を介して接極子６に力が伝達される。 The transmission spring 8 is provided between the armature 6 and the mover 15 and transmits a force between the armature 6 and the mover 15. That is, in the present embodiment, force is transmitted from the armature 6 to the mover 15 via the transmission spring 8, and force is transmitted from the mover 15 to the armature 6 via the transmission spring 8.

伝達ばね８は、図１Ｂに示すように、たとえばステンレス銅（ＳＵＳ）等の金属製の板ばねから平面視でＵ字状に形成されている。伝達ばね８は、一対の取付片８１と、連結片８２とを一体に形成して構成される。一対の取付片８１及び連結片８２は、いずれも矩形状に形成されている。 As shown in FIG. 1B, the transmission spring 8 is formed in a U shape in plan view from a metal leaf spring such as stainless copper (SUS). The transmission spring 8 is configured by integrally forming a pair of attachment pieces 81 and a connecting piece 82. Each of the pair of attachment pieces 81 and connection pieces 82 is formed in a rectangular shape.

一対の取付片８１には、それぞれ厚さ方向（上下方向）に貫通する孔８１１が設けられている。本実施形態では、これらの孔８１１にそれぞれ一対の可動接点１４の軸部１４１を挿入し、かしめることにより、一対の取付片８１が可動子１５に取り付けられている。なお、一対の取付片８１は、一対の可動接点１４と共に取り付けられていなくてもよい。つまり、伝達ばね８は、可動子１５において、一対の可動接点１４が取り付けられる部位とは異なる部位に取り付けられていてもよい。 Each of the pair of attachment pieces 81 is provided with a hole 811 penetrating in the thickness direction (vertical direction). In the present embodiment, the pair of attachment pieces 81 are attached to the mover 15 by inserting and caulking the shaft portions 141 of the pair of movable contacts 14 into the holes 811. Note that the pair of attachment pieces 81 may not be attached together with the pair of movable contacts 14. That is, the transmission spring 8 may be attached to a part of the movable element 15 that is different from the part to which the pair of movable contacts 14 are attached.

連結片８２は、一対の取付片８１の各々の長尺方向の端を連結している。ここで、連結片８２は、一対の取付片８１の各々との連結部位８３に沿って上向きに折り曲げられている。したがって、連結片８２は、連結部位８３を支点として撓み可能となっている。また、連結片８２は、一対の取付片８１が可動子１５に取り付けられた状態で、接極子６の第１板６１と対向している。そして、連結片８２は、接極子６の突部６１１に接触している。 The connecting piece 82 connects the ends in the longitudinal direction of the pair of attachment pieces 81. Here, the connecting piece 82 is bent upward along a connecting portion 83 with each of the pair of attachment pieces 81. Therefore, the connecting piece 82 can be bent with the connecting portion 83 as a fulcrum. The connecting piece 82 faces the first plate 61 of the armature 6 with the pair of attachment pieces 81 attached to the mover 15. The connecting piece 82 is in contact with the protrusion 611 of the armature 6.

ケースＣ１は、たとえばセラミック、合成樹脂などの電気絶縁性を有する材料やステンレス鋼（ＳＵＳ）により形成されている。ケースＣ１は、ベースＣ１１と、カバーＣ１２とを、たとえば溶接やろう付け、熱硬化型樹脂の接着剤等で結合することにより構成されている。ケースＣ１は、接点装置Ａ１及び駆動装置Ｂ１を収納する。なお、図２に示すように、接点装置Ａ１のうち第１端子板１１の第１端子部１１２と、第２端子板１２の第２端子部１２２とは、ケースＣ１から露出している。また、図２に示すように、駆動装置Ｂ１のうち一対のコイル端子２１の各々の一部は、ケースＣ１から露出している。 The case C1 is made of, for example, an electrically insulating material such as ceramic or synthetic resin, or stainless steel (SUS). The case C1 is configured by joining the base C11 and the cover C12 with, for example, welding, brazing, a thermosetting resin adhesive, or the like. Case C1 accommodates contact device A1 and drive device B1. As shown in FIG. 2, in the contact device A1, the first terminal portion 112 of the first terminal plate 11 and the second terminal portion 122 of the second terminal plate 12 are exposed from the case C1. Further, as shown in FIG. 2, a part of each of the pair of coil terminals 21 in the driving device B1 is exposed from the case C1.

ここで、本実施形態の電磁継電器１００の動作について図３Ａ、図３Ｂを用いて説明する。なお、以下の説明では、接点装置Ａ１のオフ状態における可動子１５の状態を「元の状態」という。接点装置Ａ１のオフ状態において、コイル２が通電すると、コイル２が磁束を発生する。すると、接極子６の第２板６２と固定子４の吸引部４１との間に磁気吸引力が生じることで、復帰ばね７の弾性力に抗して第２板６２が吸引部４１に引き寄せられる。これにより、接極子６が反時計回りに回転し、第２位置から第１位置に移動する。 Here, operation | movement of the electromagnetic relay 100 of this embodiment is demonstrated using FIG. 3A and FIG. 3B. In the following description, the state of the mover 15 in the OFF state of the contact device A1 is referred to as “original state”. When the coil 2 is energized in the OFF state of the contact device A1, the coil 2 generates a magnetic flux. Then, a magnetic attraction force is generated between the second plate 62 of the armature 6 and the attraction portion 41 of the stator 4, so that the second plate 62 is attracted to the attraction portion 41 against the elastic force of the return spring 7. It is done. As a result, the armature 6 rotates counterclockwise and moves from the second position to the first position.

接極子６の第１位置への移動に伴って、接極子６の第１板６１（ここでは、突部６１１）が伝達ばね８の連結片８２を押す。すると、伝達ばね８は、接極子６から可動子１５へと力を伝達する。可動子１５は、伝達ばね８からの力を受けて下向きに押されることにより、第２端部１５４（右端）を支点として反時計回りに回転する。そして、一対の可動接点１４は、一対の固定接点１３に接触する閉位置へと移動する（図３Ａ参照）。よって、接点装置Ａ１がオン状態となり、第１端子板１１と第２端子板１２との間が導通する。 As the armature 6 moves to the first position, the first plate 61 (here, the protrusion 611) of the armature 6 pushes the connecting piece 82 of the transmission spring 8. Then, the transmission spring 8 transmits a force from the armature 6 to the mover 15. The mover 15 receives the force from the transmission spring 8 and is pushed downward to rotate counterclockwise with the second end 154 (right end) as a fulcrum. And a pair of movable contact 14 moves to the closed position which contacts a pair of fixed contact 13 (refer FIG. 3A). Therefore, the contact device A1 is turned on, and the first terminal plate 11 and the second terminal plate 12 are electrically connected.

次に、コイル２の通電を解除すると、コイル２は磁束を発生しなくなる。すると、接極子６の第２板６２と、固定子４の吸引部４１との間の磁気吸引力も失われる。そして、接極子６は、復帰ばね７の弾性力によって時計回りに回転し、第１位置から第２位置に移動する。 Next, when the energization of the coil 2 is released, the coil 2 does not generate a magnetic flux. Then, the magnetic attraction force between the second plate 62 of the armature 6 and the attraction portion 41 of the stator 4 is also lost. The armature 6 rotates clockwise by the elastic force of the return spring 7 and moves from the first position to the second position.

接極子６の第２位置への移動に伴って、接極子６の第１板６１が伝達ばね８を介して可動子１５を押す力が弱まる。このため、可動子１５は、自身の弾性力により、第２端部１５４（右端）を支点として時計回りに回転する。そして、一対の可動接点１４は、一対の固定接点１３から離れた開位置へと移動する（図３Ｂ参照）。 As the armature 6 moves to the second position, the force with which the first plate 61 of the armature 6 pushes the mover 15 via the transmission spring 8 is weakened. For this reason, the mover 15 rotates clockwise around the second end 154 (right end) by its own elastic force. Then, the pair of movable contacts 14 moves to an open position away from the pair of fixed contacts 13 (see FIG. 3B).

次に、可動子１５の詳細な構成について説明する。 Next, the detailed structure of the needle | mover 15 is demonstrated.

可動子１５は、図１Ｂに示すように、複数の板ばね（ここでは、３つの板ばね）で形成されている。本実施形態では、最下位の板ばねを第１板ばね１５ａと、第１板ばね１５ａと上側で隣り合う板ばねを第２板ばね１５ｂ、第２板ばね１５ｂと上側で隣り合い、最上位の板ばねを第３板ばね１５ｃとする。可動子１５を複数の板ばねで形成することで、大電流を流すために、ばねを固くすることなく断面積を確保することができる。 As shown in FIG. 1B, the mover 15 is formed of a plurality of leaf springs (here, three leaf springs). In the present embodiment, the lowermost leaf spring is the first leaf spring 15a, the leaf spring adjacent to the first leaf spring 15a on the upper side is adjacent to the second leaf spring 15b, and the second leaf spring 15b on the upper side. This leaf spring is referred to as a third leaf spring 15c. By forming the mover 15 with a plurality of leaf springs, a large current flows, so that the cross-sectional area can be secured without hardening the spring.

第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃのそれぞれは、第１端部１５３において、厚さ方向に貫通する２つの取付孔１５２を有している。２つの可動接点１４の軸部１４１を、それぞれ対応する取付孔１５２及び伝達ばね８に挿通し、第１板ばね１５ａ、第２板ばね１５ｂ、第３板ばね１５ｃ及び伝達ばね８にかしめる。これにより、可動接点１４が可動子１５及び伝達ばね８に固定される（図１Ａ参照）。 Each of the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c has two attachment holes 152 penetrating in the thickness direction at the first end portion 153. The shaft portions 141 of the two movable contacts 14 are respectively inserted into the corresponding mounting holes 152 and the transmission springs 8, and are caulked to the first plate spring 15 a, the second plate spring 15 b, the third plate spring 15 c, and the transmission spring 8. Thereby, the movable contact 14 is fixed to the needle | mover 15 and the transmission spring 8 (refer FIG. 1A).

第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃのそれぞれは、第２端部１５４において、厚さ方向に貫通する２つの固定孔１５１を有している。第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃの固定孔１５１に、対応する固定ピン１２４を挿通し、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃにかしめる。これにより、可動子１５が第２端子板１２に固定される（図１Ａ参照）。ここで、固定ピン１２４は、第２端子板１２の固定孔１２１に挿入されている。なお、可動子１５が閉位置と開位置との間で移動する際の支点が、第２端部１５４において固定ピン１２４で固定された部位となる。 Each of the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c has two fixing holes 151 penetrating in the thickness direction at the second end portion 154. The corresponding fixing pins 124 are inserted into the fixing holes 151 of the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c, and the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c are inserted. Caulking. Thereby, the needle | mover 15 is fixed to the 2nd terminal board 12 (refer FIG. 1A). Here, the fixing pin 124 is inserted into the fixing hole 121 of the second terminal board 12. Note that a fulcrum when the mover 15 moves between the closed position and the open position is a portion fixed by the fixing pin 124 at the second end 154.

第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃのそれぞれは、第２端部１５４に、厚さ方向に貫通する貫通孔１５５を有している。貫通孔１５５は、領域Ｄ１，Ｄ２とは異なる領域Ｄ３に設けられることが好ましい（図５参照）。ここで、領域Ｄ１，Ｄ２は、可動接点１４と、第２端子板１２との通電路となる領域であって可動接点１４と固定孔１５１との経路が最短となる領域である。たとえば、領域Ｄ１は、可動子１５における一方の可動接点１４と一方の固定孔１５１ａとの間の長方形状の領域となる。領域Ｄ２は、可動子１５における他方の可動接点１４と他方の固定孔１５１ｂとの間の長方形状の領域となる。これにより、通電路となる領域Ｄ１，Ｄ２に、貫通孔１５５が設けられることがないので、接点装置Ａ１は、バッテリから負荷への直流電力の供給を阻害することはない。 Each of the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c has a through hole 155 penetrating in the thickness direction at the second end 154. The through hole 155 is preferably provided in a region D3 different from the regions D1 and D2 (see FIG. 5). Here, the regions D <b> 1 and D <b> 2 are regions that serve as energization paths between the movable contact 14 and the second terminal plate 12, and are regions in which the path between the movable contact 14 and the fixed hole 151 is the shortest. For example, the region D1 is a rectangular region between one movable contact 14 and one fixed hole 151a in the movable element 15. The region D2 is a rectangular region between the other movable contact 14 and the other fixed hole 151b in the movable element 15. Thereby, since the through-hole 155 is not provided in the area | regions D1 and D2 used as an electricity supply path, the contact apparatus A1 does not inhibit supply of the direct-current power from a battery to a load.

また、第１板ばね１５ａは、第１板ばね１５ａの貫通孔１５５において、長尺方向（左右方向）に延びる２つの結合片１５６，１５７を有している。 The first leaf spring 15a has two coupling pieces 156 and 157 extending in the longitudinal direction (left-right direction) in the through hole 155 of the first leaf spring 15a.

結合片１５６，１５７は、折り曲げられた状態で他の板ばね（ここでは、第２板ばね１５ｂ及び第３板ばね１５ｃ）を挟み込む。 The coupling pieces 156 and 157 sandwich other leaf springs (here, the second leaf spring 15b and the third leaf spring 15c) in a bent state.

ここで、結合片１５６，１５７が、第２板ばね１５ｂ及び第３板ばね１５ｃを挟み込む手順について説明する。まず、第１板ばね１５ａの上位に第２板ばね１５ｂ、第３板ばね１５ｃを順次重ね合わせる（図６Ａ，Ｂ参照）。このとき、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃの各々の貫通孔１５５が、厚さ方向（上下方向）において重なり合っている。次に、結合片１５６，１５７を第１板ばね１５ａの短尺方向に沿って、略９０度に折り曲げる（図６Ｃ，Ｄ参照）。略９０度に折り曲げ後、結合片１５６，１５７のそれぞれの先端部１５８，１５９を第１板ばね１５ａの短尺方向に沿って、略９０度に折り曲げる（図６Ｅ，Ｆ参照）。結果、結合片１５６，１５７は、第２板ばね１５ｂ及び第３板ばね１５ｃを挟み込むことができる。第２板ばね１５ｂ及び第３板ばね１５ｃが、結合片１５６，１５７で挟み込まれている状態において、結合片１５６，１５７の先端部１５８，１５９は、第３板ばね１５ｃに接することとなる（図６Ｅ，Ｆ参照）。 Here, a procedure in which the coupling pieces 156 and 157 sandwich the second leaf spring 15b and the third leaf spring 15c will be described. First, the second plate spring 15b and the third plate spring 15c are sequentially superposed on the first plate spring 15a (see FIGS. 6A and 6B). At this time, the through holes 155 of the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c overlap in the thickness direction (vertical direction). Next, the coupling pieces 156 and 157 are bent at approximately 90 degrees along the short direction of the first leaf spring 15a (see FIGS. 6C and D). After bending at approximately 90 degrees, the respective front ends 158 and 159 of the coupling pieces 156 and 157 are bent at approximately 90 degrees along the short direction of the first leaf spring 15a (see FIGS. 6E and F). As a result, the coupling pieces 156, 157 can sandwich the second leaf spring 15b and the third leaf spring 15c. In a state where the second plate spring 15b and the third plate spring 15c are sandwiched between the coupling pieces 156 and 157, the tip portions 158 and 159 of the coupling pieces 156 and 157 are in contact with the third plate spring 15c ( (See FIGS. 6E and F).

結合片１５６，１５７で第２板ばね１５ｂ及び第３板ばね１５ｃを挟み込んだ後、可動子１５の一端（たとえば、第１端部１５３）を可動接点１４でかしめた場合であっても、図７に示すように第１板ばね１５ａと第２板ばね１５ｂとの間には空間１５ｄが存在する。また、第２板ばね１５ｂと第３板ばね１５ｃとの間にも空間１５ｄが存在する。そのため、隣り合う板ばね（たとえば、第１板ばね１５ａと第２板ばね１５ｂ）は、互いに干渉しない。したがって、可動子１５は、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃが長尺方向にずれ、これら板ばねが不揃いになる可能性を低くすることができる。 Even when the one end (for example, the first end 153) of the movable element 15 is crimped by the movable contact 14 after the second leaf spring 15b and the third leaf spring 15c are sandwiched between the coupling pieces 156, 157, FIG. As shown in FIG. 7, a space 15d exists between the first leaf spring 15a and the second leaf spring 15b. A space 15d also exists between the second leaf spring 15b and the third leaf spring 15c. Therefore, adjacent leaf springs (for example, the first leaf spring 15a and the second leaf spring 15b) do not interfere with each other. Therefore, the mover 15 can reduce the possibility that the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c are displaced in the longitudinal direction, and the plate springs become uneven.

上述したように、第３板ばね１５ｃは、第１板ばね１５ａの結合片１５６，１５７が折り曲げられた状態で結合片１５６，１５７の先端部１５８，１５９と接しており、第２板ばね１５ｂは、第１板ばね１５ａと第３板ばね１５ｃとの間に配置されている。このとき、第３板ばね１５ｃの貫通孔１５５の径ｄ１は、第２板ばね１５ｂの貫通孔１５５の径ｄ２よりも大きいことが好ましい（図６Ｂ参照）。たとえば、第３板ばね１５ｃの貫通孔１５５の径ｄ１は、第２板ばね１５ｂの貫通孔１５５の径ｄ２よりも０．２ｍｍ大きい。なお、この数値は一例であり、この数値に限定する趣旨ではない。ここで、本実施形態において、貫通孔１５５の径とは、貫通孔１５５において可動子１５の長尺方向に沿った長さである。これにより、可動子１５は、結合片１５６，１５７が折り曲げられた状態で、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃにおける長尺方向のばらつきを吸収することができる。なお、結合片１５６，１５７が折り曲げられた状態とは、図６Ｆの状態、つまり結合片１５６，１５７が第２板ばね１５ｂ及び第３板ばね１５ｃを挟み込むように、折り曲げられた状態をいう。 As described above, the third leaf spring 15c is in contact with the front ends 158 and 159 of the coupling pieces 156 and 157 in a state where the coupling pieces 156 and 157 of the first leaf spring 15a are bent, and the second leaf spring 15b. Are arranged between the first leaf spring 15a and the third leaf spring 15c. At this time, the diameter d1 of the through hole 155 of the third leaf spring 15c is preferably larger than the diameter d2 of the through hole 155 of the second leaf spring 15b (see FIG. 6B). For example, the diameter d1 of the through hole 155 of the third leaf spring 15c is 0.2 mm larger than the diameter d2 of the through hole 155 of the second leaf spring 15b. In addition, this numerical value is an example and is not the meaning limited to this numerical value. Here, in this embodiment, the diameter of the through hole 155 is a length along the longitudinal direction of the mover 15 in the through hole 155. Thereby, the mover 15 can absorb the variation in the longitudinal direction of the first leaf spring 15a, the second leaf spring 15b, and the third leaf spring 15c in a state where the coupling pieces 156 and 157 are bent. The state where the coupling pieces 156 and 157 are bent refers to the state shown in FIG. 6F, that is, the state where the coupling pieces 156 and 157 are bent so as to sandwich the second plate spring 15 b and the third plate spring 15 c.

本実施形態の可動子１５は、一端をかしめる前に、第１板ばね１５ａに設けられた結合片１５６，１５７を折り曲げて、第２板ばね１５ｂ及び第３板ばね１５ｃを結合片１５６，１５７で挟み込むことで、仮止めを行っている。そのため、可動子１５の一端をかしめても、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃが不揃いになる可能性を低くすることができる。たとえば、可動子１５の第１端部１５３を可動接点１４でかしめた場合であっても、可動子１５の第２端部１５４において、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃが不揃いになる可能性は低い。したがって、可動子１５は、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃで組み立てられた後、３つの板ばねが不揃いであることが原因で、結合不良（カジリ、削れ等）が発生する可能性を低くすることができる。 Before the one end of the movable element 15 is caulked, the coupling pieces 156 and 157 provided on the first leaf spring 15a are bent, and the second leaf spring 15b and the third leaf spring 15c are joined to the coupling piece 156. Temporary fixing is performed by sandwiching at 157. Therefore, even if one end of the mover 15 is caulked, the possibility that the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c become uneven can be reduced. For example, even when the first end 153 of the mover 15 is caulked by the movable contact 14, the first leaf spring 15 a, the second leaf spring 15 b, and the third plate at the second end 154 of the mover 15. It is unlikely that the spring 15c will be uneven. Therefore, after the movable element 15 is assembled with the first leaf spring 15a, the second leaf spring 15b, and the third leaf spring 15c, the three leaf springs are not aligned, resulting in poor coupling (eg, galling, scraping, etc.). ) Can be reduced.

なお、本実施形態では、結合片１５６，１５７は、第１板ばね１５ａの貫通孔１５５に設けられた構成としたが、この構成に限定されない。結合片１５６，１５７は、他の板ばねに設けられてもよい。たとえば、本実施形態において、第３板ばね１５ｃに結合片１５６，１５７が設けられてもよい。この場合、第３板ばね１５ｃに設けられた結合片１５６，１５７が第１板ばね１５ａ、第２板ばね１５ｂを挟み込むように、第３板ばね１５ｃに設けられた結合片１５６，１５７を折り曲げる。または、第２板ばね１５ｂに結合片１５６，１５７が設けられてもよい。この場合、たとえば第２板ばね１５ｂの結合片１５６が第１板ばね１５ａを、第２板ばね１５ｂの結合片１５７が第３板ばね１５ｃをそれぞれ挟み込むように、第２板ばね１５ｂに設けられた結合片１５６，１５７を折り曲げる。または、第１板ばね１５ａに１つの結合片（第１結合片）及び第３板ばね１５ｃに１つの結合片（第２結合片）が設けられてもよい。この場合、第１結合片が第２板ばね１５ｂ及び第３板ばね１５ｃを、第２結合片が第１板ばね１５ａ及び第２板ばね１５ｂを、それぞれ挟み込むように、第１結合片及び第２結合片を折り曲げる。つまり、可動子１５は、結合片１５６，１５７を有する板ばね以外の残りの板ばねを当該結合片１５６，１５７で挟み込む構成であればよい。 In the present embodiment, the coupling pieces 156 and 157 are configured to be provided in the through hole 155 of the first leaf spring 15a. However, the present invention is not limited to this configuration. The coupling pieces 156 and 157 may be provided on other leaf springs. For example, in this embodiment, the coupling pieces 156 and 157 may be provided on the third leaf spring 15c. In this case, the coupling pieces 156 and 157 provided on the third plate spring 15c are bent so that the coupling pieces 156 and 157 provided on the third plate spring 15c sandwich the first plate spring 15a and the second plate spring 15b. . Alternatively, the coupling pieces 156 and 157 may be provided on the second leaf spring 15b. In this case, for example, the coupling piece 156 of the second leaf spring 15b is provided on the second leaf spring 15b so as to sandwich the first leaf spring 15a, and the coupling piece 157 of the second leaf spring 15b is interposed between the third leaf spring 15c. The joined pieces 156 and 157 are bent. Alternatively, one coupling piece (first coupling piece) may be provided on the first leaf spring 15a and one coupling piece (second coupling piece) may be provided on the third leaf spring 15c. In this case, the first coupling piece and the first leaf spring 15b and the third leaf spring 15c are sandwiched between the first coupling piece and the first leaf spring 15a and the second leaf spring 15b, respectively. 2 Bend the connecting piece. In other words, the movable element 15 may be configured to sandwich the remaining leaf springs other than the leaf springs having the coupling pieces 156 and 157 between the coupling pieces 156 and 157.

本実施形態の可動子１５では、結合片１５６，１５７を第１板ばね１５ａの貫通孔１５５に設ける構成としたが、この構成に限定されない。たとえば、第１板ばね１５ａの少なくとも一端を延長し、延長部位を結合片とし、第１板ばね１５ａの延長部位（結合片）を折り曲げた状態で第２板ばね１５ｂ及び第３板ばね１５ｃの外側から第２板ばね１５ｂ及び第３板ばね１５ｃを挟み込んでもよい。または、第３板ばね１５ｃの少なくとも一端を延長し、延長部位を結合片とし、第３板ばね１５ｃの延長部位（結合片）を折り曲げた状態で第１板ばね１５ａ及び第２板ばね１５ｂの外側から第１板ばね１５ａ及び第２板ばね１５ｂを挟み込んでもよい。または、第２板ばね１５ｂの両端を延長し、延長部位をそれぞれ結合片（第１結合片、第２結合片）としてもよい。この場合、第１結合片を折り曲げた状態で第１板ばね１５ａの外側から第１板ばね１５ａを挟み込み、第２結合片を折り曲げた状態で第３板ばね１５ｃの外側から第３板ばね１５ｃを挟み込む。つまり、可動子１５は、複数の板ばねのうち一端又は両端に結合片を有する板ばね以外の残りの板ばねを当該結合片で挟み込む構成であればよい。 In the mover 15 of the present embodiment, the coupling pieces 156 and 157 are provided in the through hole 155 of the first leaf spring 15a. However, the present invention is not limited to this configuration. For example, at least one end of the first leaf spring 15a is extended, the extension portion is a coupling piece, and the extension portion (coupling piece) of the first leaf spring 15a is bent, and the second leaf spring 15b and the third leaf spring 15c are bent. The second leaf spring 15b and the third leaf spring 15c may be sandwiched from the outside. Alternatively, at least one end of the third leaf spring 15c is extended, the extension portion is used as a coupling piece, and the extension portion (coupling piece) of the third leaf spring 15c is bent, so that the first leaf spring 15a and the second leaf spring 15b are bent. The first leaf spring 15a and the second leaf spring 15b may be sandwiched from the outside. Alternatively, both ends of the second leaf spring 15b may be extended, and the extended portions may be used as coupling pieces (first coupling piece, second coupling piece), respectively. In this case, the first plate spring 15a is sandwiched from the outside of the first plate spring 15a with the first coupling piece folded, and the third plate spring 15c from the outside of the third plate spring 15c with the second coupling piece folded. Is inserted. That is, the mover 15 may be configured to sandwich the remaining leaf springs other than the leaf springs having the coupling pieces at one end or both ends of the plurality of leaf springs with the coupling pieces.

本実施形態の結合片１５６，１５７は、貫通孔１５５の長尺方向に突出するように設ける構成としたが、この構成に限定されない。結合片１５６，１５７は、貫通孔１５５の短尺方向に突出するように設ける構成であってもよい。この場合、貫通孔１５５の短尺方向に突出するように設けられた結合片１５６，１５７は、長尺方向に沿って折り曲げられることで、第２板ばね１５ｂ及び第３板ばね１５ｃを挟み込む。この場合、第３板ばね１５ｃの貫通孔１５５の短尺方向における長さ（本変形の第３板ばね１５ｃの貫通孔１５５の径）は、第２板ばね１５ｂの貫通孔の短尺方向における長さ（本変形の第２板ばね１５ｂの貫通孔１５５の径）よりも大きいことが好ましい。径の長さを変えることで、可動子１５は、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃにおける短尺方向のばらつきを吸収することができる。 Although the coupling pieces 156 and 157 of the present embodiment are provided so as to protrude in the longitudinal direction of the through-hole 155, they are not limited to this configuration. The coupling pieces 156 and 157 may be configured to protrude in the short direction of the through hole 155. In this case, the coupling pieces 156 and 157 provided so as to protrude in the short direction of the through hole 155 sandwich the second plate spring 15b and the third plate spring 15c by being bent along the long direction. In this case, the length of the through hole 155 of the third leaf spring 15c in the short direction (the diameter of the through hole 155 of the third leaf spring 15c of this modification) is the length of the through hole of the second leaf spring 15b in the short direction. It is preferably larger than (the diameter of the through hole 155 of the second leaf spring 15b of this modification). By changing the length of the diameter, the mover 15 can absorb variations in the short direction of the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c.

ここで、本実施形態の第２端子板１２において、図８Ａに示すように、固定孔１２１間であって、貫通孔１５５と重なり合う領域に、厚さ方向に貫通する貫通孔１２５を設けてもよい。この場合、可動子１５の貫通孔１５５と、第２端子板１２の貫通孔１２５とに、パイロットピン１２６を挿入することで、可動子１５を第２端子板１２に固定する際の可動子１５の位置決めを容易にすることができる（図８Ｂ参照）。 Here, in the second terminal plate 12 of the present embodiment, as shown in FIG. 8A, a through hole 125 penetrating in the thickness direction may be provided in a region between the fixed holes 121 and overlapping with the through hole 155. Good. In this case, the mover 15 when the mover 15 is fixed to the second terminal plate 12 by inserting the pilot pin 126 into the through hole 155 of the mover 15 and the through hole 125 of the second terminal plate 12. Can be easily positioned (see FIG. 8B).

本実施形態では、貫通孔１５５は、２つの結合片１５６，１５７を有する構成としたが、この構成に限定されない。貫通孔１５５は、少なくとも１つの結合片を有していればよい。 In the present embodiment, the through-hole 155 has a configuration including the two coupling pieces 156 and 157, but is not limited to this configuration. The through hole 155 only needs to have at least one coupling piece.

ここで、本実施形態の電磁継電器１００では、接点装置Ａ１は、一対の固定接点１３と、一対の可動接点１４とを備えているが、他の構成であってもよい。たとえば、接点装置Ａ１は、１つの固定接点１３と、１つの可動接点１４とを備えていてもよい。また、接点装置Ａ１は、３つ以上の固定接点１３と、３つ以上の可動接点１４とを備えていてもよい。 Here, in the electromagnetic relay 100 of the present embodiment, the contact device A1 includes the pair of fixed contacts 13 and the pair of movable contacts 14, but may have other configurations. For example, the contact device A <b> 1 may include one fixed contact 13 and one movable contact 14. Further, the contact device A1 may include three or more fixed contacts 13 and three or more movable contacts 14.

また、本実施形態の電磁継電器１００は、ａ接点リレー、ｂ接点リレー、ｃ接点リレーのいずれにも用いることができる。たとえば電磁継電器１００をｃ接点リレーとして用いる場合は、固定接点１３とは別に、可動接点１４が開位置にあるときに接触する固定接点を設ければよい。この構成では、コイル２の通電・非通電に応じて、可動接点１４が閉位置で接触する固定接点１３に接続される電路と、可動接点１４が開位置で接触する固定接点に接続される電路とを切り替えることができる。 Moreover, the electromagnetic relay 100 of this embodiment can be used for any of a contact relay, b contact relay, and c contact relay. For example, when the electromagnetic relay 100 is used as a c-contact relay, a fixed contact that contacts when the movable contact 14 is in the open position may be provided separately from the fixed contact 13. In this configuration, depending on whether the coil 2 is energized or de-energized, an electric circuit connected to the fixed contact 13 where the movable contact 14 contacts in the closed position, and an electric circuit connected to the fixed contact where the movable contact 14 contacts in the open position. And can be switched.

以上説明したように、本実施形態の可動子１５は、厚さ方向に重ねられた複数の板ばね（ここでは、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃ）で形成されている。第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃのうち少なくとも１つの板ばね（第１板ばね１５ａ）は、複数の板ばねのうち残りの板ばね（第２板ばね１５ｂ及び第３板ばね１５ｃ）を折り曲げられた状態で挟み込む結合片１５６，１５７を有する。 As described above, the mover 15 of the present embodiment is formed by a plurality of leaf springs (here, the first leaf spring 15a, the second leaf spring 15b, and the third leaf spring 15c) stacked in the thickness direction. Has been. At least one leaf spring (first leaf spring 15a) among the first leaf spring 15a, second leaf spring 15b, and third leaf spring 15c is the remaining leaf spring (second leaf spring 15b and It has coupling pieces 156 and 157 that sandwich the third leaf spring 15c) in a bent state.

この構成によると、結合片１５６，１５７で第２板ばね１５ｂ及び第３板ばね１５ｃが挟み込まれた状態で可動子１５の一端をかしめても、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃが不揃いになる可能性を低くすることができる。したがって、可動子１５は、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃで組み立てられた後、３つの板ばねが不揃いであることが原因で、結合不良（カジリ、削れ等）が発生する可能性が低くなる。 According to this configuration, even if one end of the mover 15 is caulked with the second plate spring 15b and the third plate spring 15c sandwiched between the coupling pieces 156 and 157, the first plate spring 15a, the second plate spring 15b, and The possibility that the third plate spring 15c becomes uneven can be reduced. Therefore, after the movable element 15 is assembled with the first leaf spring 15a, the second leaf spring 15b, and the third leaf spring 15c, the three leaf springs are not aligned, resulting in poor coupling (eg, galling, scraping, etc.). ) Is less likely to occur.

ここで、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃの第２端部１５４には、厚さ方向に貫通する貫通孔１５５が設けられている。結合片１５６，１５７は、貫通孔１５５の一部の縁に沿って折り曲げられるように構成されている。この構成によると、可動子１５の一端をかしめても、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃが長尺方向又は短尺方向に不揃いになる可能性を低くすることができる。 Here, a through hole 155 penetrating in the thickness direction is provided in the second end 154 of the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c. The coupling pieces 156 and 157 are configured to be bent along a part of the edge of the through hole 155. According to this configuration, even if one end of the mover 15 is caulked, the possibility that the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c become uneven in the long direction or the short direction may be reduced. it can.

ここで、第３板ばね１５ｃの貫通孔１５５の径ｄ１は、第２板ばね１５ｃの貫通孔１５５の径ｄ２よりも大きい。この構成によると、第１板ばね１５ａの結合片１５６，１５７で第２板ばね１５ｂ及び第３板ばね１５ｃを挟み込んだ際に、第３板ばね１５ｃが長尺方向に若干移動することを許容している。これにより、可動子１５は、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃにおける長尺方向のばらつきを吸収することができる。 Here, the diameter d1 of the through hole 155 of the third leaf spring 15c is larger than the diameter d2 of the through hole 155 of the second leaf spring 15c. According to this configuration, when the second plate spring 15b and the third plate spring 15c are sandwiched between the coupling pieces 156 and 157 of the first plate spring 15a, the third plate spring 15c is allowed to move slightly in the longitudinal direction. doing. Thereby, the needle | mover 15 can absorb the dispersion | variation in the elongate direction in the 1st leaf | plate spring 15a, the 2nd leaf | plate spring 15b, and the 3rd leaf | plate spring 15c.

ここで、支点は、第２端部１５４において固定ピン１２４で固定された部位である。
複数の板ばねの貫通孔１５５は、可動子１５における可動接点１４と固定ピン１２４との最短経路となる領域Ｄ１，Ｄ２とは異なる領域Ｄ３に設けられている。この構成によると、可動子１５は、通電路となる領域Ｄ１，Ｄ２に、貫通孔１５５が設けられることがないので、電流の流れを阻害することはない。 Here, the fulcrum is a portion fixed by the fixing pin 124 at the second end 154.
The plurality of leaf springs through holes 155 are provided in a region D3 different from the regions D1 and D2 serving as the shortest path between the movable contact 14 and the fixed pin 124 in the movable element 15. According to this configuration, the mover 15 does not hinder the flow of current because the through hole 155 is not provided in the regions D1 and D2 serving as the energization paths.

ここで、複数の板ばねは、一方向が長尺な形状である。結合片１５６，１５７は、複数の板ばねの短尺方向に沿って折り曲げられている。この構成によると、可動子１５の一端をかしめても、第１板ばね１５ａ、第２板ばね１５ｂ及び第３板ばね１５ｃが長尺方向に不揃いになる可能性を低くすることができる。 Here, the plurality of leaf springs have a long shape in one direction. The coupling pieces 156 and 157 are bent along the short direction of the plurality of leaf springs. According to this configuration, even if one end of the mover 15 is caulked, the possibility that the first plate spring 15a, the second plate spring 15b, and the third plate spring 15c become uneven in the longitudinal direction can be reduced.

また、本実施形態の接点装置Ａ１は、可動子１５と、固定接点１３と、可動接点１４と、端子板（第２端子板１２）とを備える。可動接点１４は、可動子１５の第１端部１５３に接続され。端子板には、可動子１５の第２端部１５４が取り付けられる。 Further, the contact device A1 of the present embodiment includes a movable element 15, a fixed contact 13, a movable contact 14, and a terminal plate (second terminal plate 12). The movable contact 14 is connected to the first end 153 of the movable element 15. The second end 154 of the mover 15 is attached to the terminal board.

この構成によると、可動子１５において３つの板ばねが不揃いであることが原因で、結合不良（カジリ、削れ等）が発生といった可能性が低くなる。そのため、接点装置Ａ１は、結合不良により誤動作が発生する可能性を低くすることができる。 According to this configuration, the possibility of occurrence of poor coupling (caulking, scraping, etc.) due to the unevenness of the three leaf springs in the mover 15 is reduced. Therefore, the contact device A1 can reduce the possibility of malfunction due to poor coupling.

ここで、端子板（第２端子板１２）において、厚さ方向に貫通し、可動子１５を取り付ける際に貫通孔１５５と重なり合う領域に貫通孔１２５が設けられている。 Here, in the terminal plate (second terminal plate 12), a through hole 125 is provided in a region that penetrates in the thickness direction and overlaps the through hole 155 when the mover 15 is attached.

この構成によると、貫通孔１５５、貫通孔１２５にパイロットピン１２６を挿入することで、可動子１５を第２端子板１２に固定する際の可動子１５の位置決めを容易にすることができる。 According to this configuration, by inserting the pilot pin 126 into the through hole 155 and the through hole 125, it is possible to easily position the mover 15 when fixing the mover 15 to the second terminal plate 12.

Ａ１接点装置
１２第２端子板（端子板）
１３固定接点
１４可動接点
１５可動子
１５ａ第１板ばね（板ばね）
１５ｂ第２板ばね（板ばね）
１５ｃ第３板ばね（板ばね）
１２４固定ピン
１２５貫通孔
１５３第１端部
１５４第２端部
１５５貫通孔
１５６，１５７結合片
１５８，１５９先端部
Ｄ１領域
Ｄ２領域
Ｄ３領域
ｄ１，ｄ２径 A1 Contact device 12 Second terminal board (terminal board)
13 fixed contact 14 movable contact 15 movable element 15a first leaf spring (leaf spring)
15b Second leaf spring (leaf spring)
15c Third leaf spring (leaf spring)
124 fixing pin 125 through-hole 153 first end 154 second end 155 through-hole 156,157 coupling piece 158,159 tip D1 region D2 region D3 region d1, d2 diameter

Claims

A movable contact connected to a first end in one direction, a closed position where the movable contact contacts the fixed contact by elastic deformation with the second end opposite to the first end as a fulcrum; and the movable contact Is a mover that moves between an open position away from the fixed contact,
It is made up of a plurality of leaf springs stacked in the thickness direction,
At least one leaf spring of the plurality of leaf springs has a coupling piece that sandwiches the remaining leaf springs of the plurality of leaf springs in a bent state.

A through-hole penetrating in the thickness direction is provided in the second end portion of the plurality of leaf springs,
The mover according to claim 1, wherein the coupling piece is configured to be bent along an edge of a part of the through hole.

The plurality of leaf springs include a first leaf spring having the coupling piece, a second leaf spring and a third leaf spring not having the coupling piece,
The third leaf spring is in contact with the tip of the coupling piece in a state where the coupling piece of the first leaf spring is bent,
The second leaf spring is disposed between the first leaf spring and the third leaf spring,
The mover according to claim 2, wherein a diameter of the through hole of the third leaf spring is larger than a diameter of the through hole of the second leaf spring.

The fulcrum is a portion fixed with a fixing pin at the second end,
The through hole of the plurality of leaf springs is provided in a region different from a region that is the shortest path between the movable contact and the fixed pin in the movable element. Movable child.

The plurality of leaf springs have an elongated shape in the one direction,
The mover according to claim 1, wherein the coupling piece is configured to be bent along a short direction of the plurality of leaf springs.

The mover according to any one of claims 1 to 5,
The fixed contact;
The movable contact;
And a terminal plate to which the second end of the mover is attached.

A through-hole penetrating in the thickness direction is provided in the second other end of the plurality of leaf springs,
7. The contact device according to claim 6, wherein the terminal plate is provided with another through hole that penetrates in the thickness direction and overlaps the through hole when the movable element is attached.