JP7135936B2 - Contact device, electromagnetic contactor, and contact device manufacturing method - Google Patents

Contact device, electromagnetic contactor, and contact device manufacturing method Download PDF

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JP7135936B2
JP7135936B2 JP2019034666A JP2019034666A JP7135936B2 JP 7135936 B2 JP7135936 B2 JP 7135936B2 JP 2019034666 A JP2019034666 A JP 2019034666A JP 2019034666 A JP2019034666 A JP 2019034666A JP 7135936 B2 JP7135936 B2 JP 7135936B2
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contact
movable
movable contact
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fixed
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JP2020140825A (en
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裕也 櫻井
康弘 中
日出央 足立
充哉 伊藤
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Fuji Electric FA Components and Systems Co Ltd
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Description

本発明は、接点装置及び電磁接触器、並びに接点装置の製造方法に関し、特に、連結軸が連結された可動接触子を有する接点装置及びそれを備えた電磁接触器、並びに接点装置の製造方法に適用して有効な技術に関するものである。 TECHNICAL FIELD The present invention relates to a contact device, an electromagnetic contactor, and a method of manufacturing a contact device, and more particularly to a contact device having a movable contactor to which a connecting shaft is connected, an electromagnetic contactor having the contact device, and a method of manufacturing a contact device. It relates to technology that can be effectively applied.

電磁接触器は、特許文献１に開示されているように、電流の開閉を行う接点装置と、この接点装置を駆動する電磁石装置とを備えている。接点装置は、接点収納ケース内に、固定接点を有する一対の固定接触子と、一対の固定接触子の固定接点に対して接離可能な一対の可動接点が長手方向の両端側に設けられ、かつ連結軸の長手方向の中央部が一対の可動接点の間を横切るようにして連結された可動接触子と、固定接触子の固定接点以外を覆う絶縁カバーとを備えている。接点収納ケースは、底部である絶縁板に一対の固定接触子が配置された第１有底筒体と、第１有底筒体の底部側に開放端側が位置するように第１有底筒体に組み付けられた第２有底筒体とを備えている。そして、第２有底筒体の底部には連結軸の一端側が挿通する貫通孔が設けられている。 An electromagnetic contactor, as disclosed in Patent Document 1, includes a contact device that switches current and an electromagnet device that drives the contact device. The contact device includes a pair of fixed contacts having fixed contacts and a pair of movable contacts that can be brought into contact with and separated from the fixed contacts of the pair of fixed contacts provided in a contact housing case at both ends in the longitudinal direction, Further, it has a movable contact connected so that the central portion of the connecting shaft in the longitudinal direction crosses between the pair of movable contacts, and an insulating cover that covers the fixed contact other than the fixed contact. The contact housing case comprises a first bottomed cylinder having a pair of fixed contacts arranged on an insulating plate which is the bottom, and a first bottomed cylinder whose open end is located on the bottom side of the first bottomed cylinder. and a second bottomed cylindrical body attached to the body. A through hole through which one end of the connecting shaft is inserted is provided in the bottom of the second bottomed cylindrical body.

特開２０１２－２４３５８６号公報JP 2012-243586 A

ところで、接点装置の製造においては、第１有底筒体に第２有底筒体を組み付けて接点収納ケースを形成する際、第２有底筒体の底部に設けられた貫通孔に連結軸の一端側を挿通させる必要がある。このとき、連結軸は、一端側とは反対側の他端側の先端部のみが第１有底筒体の底部に接地する一点接地状態となるため自立しない。このため、人の手で連結軸を支えながら第２有底筒体の底部の貫通孔に連結軸の一端側を挿通させる必要があり、接点収納ケースを自動で組み立てる組立自動化が困難であった。
そこで、本発明者らは、固定接触子に設けられた絶縁カバーに着目し、本発明をなした。
本発明の目的は、接点収納ケースの組立自動化を図ることが可能な接点装置を提供することにある。 By the way, in manufacturing the contact device, when the second bottomed cylinder is assembled to the first bottomed cylinder to form the contact housing case, the connecting shaft is inserted into the through hole provided in the bottom of the second bottomed cylinder. It is necessary to insert one end side of the At this time, the connecting shaft is in a one-point contact state in which only the tip portion on the other end side opposite to the one end side is in contact with the bottom portion of the first bottomed cylindrical body, so that it does not stand on its own. Therefore, it is necessary to manually insert one end of the connecting shaft into the through-hole in the bottom of the second bottomed cylindrical body while supporting the connecting shaft manually, which makes it difficult to automate the assembly of the contact storage case. .
Accordingly, the inventors of the present invention focused on the insulating cover provided on the fixed contact and made the present invention.
SUMMARY OF THE INVENTION An object of the present invention is to provide a contact device capable of automating assembly of a contact storage case.

上記目的を達成するため、本発明の一態様に係る接点装置は、接点収納ケース内に、固定接点を有する一対の固定接触子と、一対の固定接触子の固定接点に対して接離可能な一対の可動接点が長手方向の両端側に設けられ、かつ連結軸が一対の可動接点の間を板厚方向に横切るようにして連結された可動接触子と、固定接触子の固定接点以外を覆う絶縁カバーとを備えている。そして、接点収納ケースは、固定接触子を支持する絶縁板を備えている。そして、絶縁カバーの各々は、連結軸が絶縁板から離間する状態で可動接触子を支持する突起部を備えている。
また、本発明の一態様に係る電磁接触器は、上記接点装置と、上記可動接触子を可動させる電磁石装置とを備えている。 In order to achieve the above object, a contact device according to an aspect of the present invention includes a pair of fixed contacts having fixed contacts and a pair of fixed contacts capable of being brought into contact with and separated from the fixed contacts of the pair of fixed contacts in a contact housing case. A pair of movable contacts are provided on both ends in the longitudinal direction, and a connecting shaft is connected so as to traverse between the pair of movable contacts in the plate thickness direction. and an insulating cover. The contact housing case has an insulating plate that supports the fixed contact. Each of the insulating covers has a protrusion that supports the movable contact while the connecting shaft is separated from the insulating plate.
Further, an electromagnetic contactor according to an aspect of the present invention includes the contact device and an electromagnet device that moves the movable contactor.

また、本発明の一態様に係る接点装置の製造方法は、固定接点を有し、かつ突起部が設けられた絶縁カバーを有する一対の固定接触子が底部に配置された第１有底筒体と、一対の可動接点が長手方向の両側に設けられ、かつ連結軸が一対の可動接点の間を板厚方向に横切るようにして連結された可動接触子と、底部に連結軸の一端側が挿通される貫通孔を有する第２有底筒体とを準備する工程を備える。また、一対の固定接触子の固定接点に一対の可動接点が対向し、かつ連結軸の他端側が第１有底筒体の底部から離間するように絶縁カバーの各々の突起部に支持された状態で可動接触子を第１有底筒体内に配置する工程と、可動接触子が絶縁カバーの各々の突起部に支持された状態で連結軸の一端側を第２有底筒体の貫通孔に挿通して第２有底筒体を第１有底筒体に組み付ける工程と、を備える。 In addition, a method for manufacturing a contact device according to an aspect of the present invention includes a first bottomed cylindrical body having a fixed contact and a pair of fixed contacts having an insulating cover provided with a projection, arranged at the bottom. a pair of movable contacts provided on both sides in the longitudinal direction, and a movable contact connected so that the connecting shaft crosses the pair of movable contacts in the plate thickness direction; and one end side of the connecting shaft is inserted through the bottom. a step of preparing a second bottomed cylindrical body having a through hole to be formed; Also, the pair of movable contacts are opposed to the fixed contacts of the pair of fixed contacts, and the other end of the connecting shaft is supported by the projections of the insulating cover so as to be separated from the bottom of the first bottomed cylinder. arranging the movable contact in the first bottomed cylindrical body in a state in which the movable contact is supported by each protrusion of the insulating cover, and inserting one end side of the connecting shaft into the through hole of the second bottomed cylindrical body. and inserting the second bottomed cylinder into the first bottomed cylinder by inserting the second bottomed cylinder into the first bottomed cylinder.

本発明の一態様によれば、接点収納ケースの組立自動化を図ることが可能となる。 According to one aspect of the present invention, it is possible to automate the assembly of the contact storage case.

本発明の一実施形態に係る接点装置を備えた電磁接触器の内部構成を示す断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which shows the internal structure of the electromagnetic contactor provided with the contact device which concerns on one Embodiment of this invention. 図１の一部を拡大した要部拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a part of FIG. 1; 図１の接点収納ケースの第１有底筒体を示す分解斜視図である。2 is an exploded perspective view showing a first bottomed cylindrical body of the contact storage case of FIG. 1; FIG. 図１の絶縁カバーを示す斜視図である。FIG. 2 is a perspective view showing an insulating cover of FIG. 1; 第１有底筒体の開放端側から見て絶縁カバーの突起部と可動接触子との位置関係を模式的に示す平面図である。FIG. 5 is a plan view schematically showing the positional relationship between the protrusion of the insulating cover and the movable contact when viewed from the open end side of the first bottomed cylinder; 本発明の一実施形態に係る接点装置の製造方法を説明するための断面図である。It is sectional drawing for demonstrating the manufacturing method of the contact device which concerns on one Embodiment of this invention. 本発明の一実施形態に係る接点装置の製造方法を説明するための図（（ａ）は断面図，（ｂ）は斜視図）である。It is a figure ((a) is sectional drawing and (b) is a perspective view) for demonstrating the manufacturing method of the contact device which concerns on one Embodiment of this invention. 本発明の一実施形態に係る接点装置の製造方法を説明するための図（（ａ）は断面図，（ｂ）は斜視図）である。It is a figure ((a) is sectional drawing and (b) is a perspective view) for demonstrating the manufacturing method of the contact device which concerns on one Embodiment of this invention. 本発明の一実施形態に係る接点装置の製造方法を説明するための図（（ａ）及び（ｂ）は第１有底筒体の開放端側から見た模式的平面図）である。FIG. 4 is a diagram ((a) and (b) is a schematic plan view of the first bottomed cylinder viewed from the open end side) for explaining the method of manufacturing the contact device according to the embodiment of the present invention. 第１有底筒体の変形例を示す分解斜視図である。It is an exploded perspective view which shows the modification of a 1st bottomed cylinder.

以下、図面を参照して本発明の実施形態を詳細に説明する。
なお、発明の実施例を説明するための全図において、同一機能を有するものは同一符号を付け、その繰り返しの説明は省略する。
また、各図面は模式的なものであって、現実のものとは異なる場合がある。また、以下の実施形態は、本発明の技術的思想を具体化するための装置や方法を例示するものであり、構成を下記のものに特定するものではない。すなわち、本発明の技術的思想は、特許請求の範囲に記載された技術的範囲内において、種々の変更を加えることができる。
また、以下の実施形態では、空間内で互に直交する三方向において、同一平面内で互に直交する第１の方向及び第２の方向をそれぞれＸ方向、Ｙ方向とし、第１の方向及び第２の方向のそれぞれと直交する第３の方向をＺ方向とする。
また、図４では、絶縁カバーを図２に対して上下反転して描いている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In addition, in all the drawings for explaining the embodiments of the invention, those having the same functions are denoted by the same reference numerals, and the repeated description thereof will be omitted.
Also, each drawing is schematic and may differ from the actual one. Moreover, the following embodiments are intended to exemplify devices and methods for embodying the technical idea of the present invention, and the configurations are not limited to those described below. That is, the technical idea of the present invention can be modified in various ways within the technical scope described in the claims.
Further, in the following embodiments, among the three mutually orthogonal directions in space, the first direction and the second direction, which are orthogonal to each other in the same plane, are the X direction and the Y direction, respectively. A third direction orthogonal to each of the second directions is the Z direction.
Moreover, in FIG. 4, the insulating cover is drawn upside down with respect to FIG.

〔電磁接触器の構成〕
まず、電磁接触器の構成について説明する。
図１に示すように、本発明の一実施形態に係る電磁接触器１は、電流の開閉を行う接点装置１０と、この接点装置１０を駆動する電磁石装置１００とを備えている。接点装置１０及び電磁石装置１００は、Ｚ方向に直列で配置されている。 [Configuration of electromagnetic contactor]
First, the configuration of the electromagnetic contactor will be described.
As shown in FIG. 1, an electromagnetic contactor 1 according to one embodiment of the present invention includes a contact device 10 that switches current and an electromagnet device 100 that drives the contact device 10 . The contact device 10 and the electromagnet device 100 are arranged in series in the Z direction.

〔電磁石装置の構成〕
次に、電磁石装置の構成について説明する。
図１に示すように、電磁石装置１００は、側面から見て偏平なＵ字形状の磁気ヨーク１０１を有し、この磁気ヨーク１０１の底部１０２の中央部に円筒状補助ヨーク１０３が固定されている。この円筒状補助ヨーク１０３の外側には、スプール１０４が配置されている。
スプール１０４は、円筒状補助ヨーク１０３を挿通する中央円筒部１０５と、この中央円筒部１０５のＺ方向の下端から半径方向外方に突出する下フランジ部１０６と、中央円筒部１０５のＺ方向の上端から半径方向外方に突出する上フランジ部１０７とを有する。そして、中央円筒部１０５、下フランジ部１０６及び上フランジ部１０７で形成される収納空間に励磁コイル１０８が巻装されている。 [Configuration of electromagnet device]
Next, the configuration of the electromagnet device will be described.
As shown in FIG. 1, the electromagnet device 100 has a U-shaped magnetic yoke 101 that is flat when viewed from the side, and a cylindrical auxiliary yoke 103 is fixed to the center of the bottom 102 of the magnetic yoke 101. . A spool 104 is arranged outside the cylindrical auxiliary yoke 103 .
The spool 104 includes a central cylindrical portion 105 through which the cylindrical auxiliary yoke 103 is inserted, a lower flange portion 106 protruding radially outward from the lower end of the central cylindrical portion 105 in the Z direction, and an upper flange portion 107 projecting radially outwardly from the upper end. An exciting coil 108 is wound in a housing space defined by the central cylindrical portion 105 , the lower flange portion 106 and the upper flange portion 107 .

磁気ヨーク１０１の開放端となる上端部には、上部磁気ヨーク１１０が固定されている。この上部磁気ヨーク１１０の中央部には、スプール１０４の中央円筒部１０５に対向する貫通孔１１０ａが形成されている。
スプール１０４の中央円筒部１０５内には、底部と磁気ヨーク１０１の底部１０２との間に復帰スプリング１１４を配設した可動プランジャ１１５が上下に摺動可能に配設されている。この可動プランジャ１１５には、上部磁気ヨーク１１０から上方に突出する上端部に半径方向外方に突出する周鍔部１１６が設けられている。 An upper magnetic yoke 110 is fixed to the open end of the magnetic yoke 101 . A through hole 110a is formed in the center of the upper magnetic yoke 110 so as to face the central cylindrical portion 105 of the spool 104. As shown in FIG.
A movable plunger 115 having a return spring 114 between its bottom and the bottom 102 of the magnetic yoke 101 is slidably disposed in the central cylindrical portion 105 of the spool 104 . The movable plunger 115 is provided with a peripheral collar portion 116 projecting radially outward from the upper end projecting upward from the upper magnetic yoke 110 .

上部磁気ヨーク１１０の上面には、例えば円形の中心開口１２１を有する環状永久磁石１２０が可動プランジャ１１５の周鍔部１１６を囲むように固定されている。この環状永久磁石１２０は、Ｚ方向である上下方向、即ち厚み方向に上端側を例えばＮ極とし、下端側をＳ極とするように着磁されている。
なお、環状永久磁石１２０の中心開口１２１の形状は、周鍔部１１６の形状に合わせた形状とし、外周面の形状は円形、方形等の形状とすることができる。
環状永久磁石１２０の上端面には、環状永久磁石１２０と同一外形で可動プランジャ１１５の周鍔部１１６の外径より小さい内径の貫通孔１２４を有する補助ヨーク１２５が固定されている。そして、この補助ヨーク１２５の下面に可動プランジャ１１５の周鍔部１１６が当接されている。 An annular permanent magnet 120 having, for example, a circular central opening 121 is fixed to the upper surface of the upper magnetic yoke 110 so as to surround the peripheral flange 116 of the movable plunger 115 . The ring-shaped permanent magnet 120 is magnetized such that the upper end side thereof is, for example, an N pole and the lower end side thereof is an S pole in the vertical direction, which is the Z direction, that is, the thickness direction.
The shape of the central opening 121 of the annular permanent magnet 120 can be made to match the shape of the peripheral flange portion 116, and the shape of the outer peripheral surface can be made circular, rectangular, or the like.
An auxiliary yoke 125 having the same outer shape as the annular permanent magnet 120 and having a through hole 124 with an inner diameter smaller than the outer diameter of the peripheral collar portion 116 of the movable plunger 115 is fixed to the upper end surface of the annular permanent magnet 120 . A peripheral flange 116 of the movable plunger 115 is in contact with the lower surface of the auxiliary yoke 125 .

可動プランジャ１１５の上端部には、連結軸３０の一端側が螺着により連結されている。可動プランジャ１１５は、非磁性体製で有底筒状に形成されたキャップ１３０により覆われている。そして、このキャップ１３０の開放端には半径方向外方に延長して形成されたフランジ部１３１が設けられており、このフランジ部１３１は上部磁気ヨーク１１０の下面にシール接合されている。これによって、キャップ１３０の内部と、後述する接点装置１０の消弧室５９とが上部磁気ヨーク１１０の貫通孔１１０ａを介して連通された密封容器が形成されている。この密封容器内には、例えば水素ガス、窒素ガス、水素及び窒素の混合ガス、空気、ＳＦ６（六フッ化硫黄）ガスなどのガスが封入されている。 One end of the connecting shaft 30 is connected to the upper end of the movable plunger 115 by screwing. The movable plunger 115 is covered with a cap 130 made of a non-magnetic material and formed in a cylindrical shape with a bottom. A flange portion 131 extending radially outward is provided at the open end of the cap 130 , and the flange portion 131 is sealingly joined to the lower surface of the upper magnetic yoke 110 . As a result, a sealed container is formed in which the inside of the cap 130 and the arc extinguishing chamber 59 of the contact device 10 (to be described later) communicate with each other through the through hole 110 a of the upper magnetic yoke 110 . Gases such as hydrogen gas, nitrogen gas, mixed gas of hydrogen and nitrogen, air, and SF 6 (sulfur hexafluoride) gas are sealed in the sealed container.

〔接点装置の構成〕
次に、接点装置の構成について説明する。
図１及び図２に示すように、接点装置１０は、固定接点１３を有する一対の固定接触子１１及び１２と、一対の固定接触子１１及び１２の固定接点１３に対して接離可能な一対の可動接点２３ａ及び２３ｂがＸ方向である長手方向の両端側に設けられ、かつ連結軸３０の長手方向の中央部が一対の可動接点２３ａ及び２３ｂの間を板厚方向に横切るようにして連結された可動接触子２０と、固定接触子１１，１２の固定接点以外を覆う絶縁カバー４０とを備えている。また、接点装置１０は、一対の固定接触子１１及び１２、可動接触子２０、及び連結軸３０を収納する接点収納ケース５０を備えている。 [Structure of contact device]
Next, the configuration of the contact device will be described.
As shown in FIGS. 1 and 2, the contact device 10 includes a pair of fixed contacts 11 and 12 having fixed contacts 13, and a pair of fixed contacts 11 and 12 which can be brought into contact with and separated from the fixed contacts 13. The movable contacts 23a and 23b are provided on both ends in the X direction, and the central portion of the connecting shaft 30 in the longitudinal direction crosses between the pair of movable contacts 23a and 23b in the plate thickness direction. and an insulating cover 40 covering the fixed contacts 11 and 12 other than the fixed contacts. The contact device 10 also includes a contact storage case 50 that stores the pair of fixed contacts 11 and 12 , the movable contact 20 , and the connecting shaft 30 .

＜接点収納ケース＞
図１及び図２に示すように、接点収納ケース５０は、底部５２に一対の固定接触子１１及び１２が配置された第１有底筒体５１と、第１有底筒体５１の底部５２側に開放端側が位置するように第１有底筒体５１に組み付けられ、かつ底部５６に連結軸３０の一端側が挿通する貫通孔５６ａを有する第２有底筒体５５とを備えている。この実施形態では、第２有底筒体５５が第１有底筒体５１の開放端側から第１有底筒体５１の内側に挿入されて第１有底筒体５１に固定されている。また、接点収納ケース５０は、第１有底筒体５１及び第２有底筒体５５で囲まれた消弧室５９を備えている。 <Contact storage case>
As shown in FIGS. 1 and 2, the contact storage case 50 includes a first bottomed cylindrical body 51 having a bottom portion 52 on which a pair of fixed contacts 11 and 12 are arranged, and a bottom portion 52 of the first bottomed cylindrical body 51. A second bottomed cylinder 55 is assembled to the first bottomed cylinder 51 so that the open end is located on the side, and the bottom 56 has a through hole 56a through which one end of the connecting shaft 30 is inserted. In this embodiment, the second bottomed cylinder 55 is inserted into the first bottomed cylinder 51 from the open end side of the first bottomed cylinder 51 and fixed to the first bottomed cylinder 51 . . The contact storage case 50 also includes an arc-extinguishing chamber 59 surrounded by the first bottomed cylinder 51 and the second bottomed cylinder 55 .

図１から図３に示すように、第１有底筒体５１は、下端部に外方に突出するフランジ部５３ａが設けられた角筒体５３と、この角筒体５３の上端部に内部を閉塞するように固定された平板状の絶縁板５４とで有底角筒状に形成されている。角筒体５３としては例えば金属製のものを用いている。絶縁板５４としては例えばセラミックス製のものを用いている。角筒体５３は、そのフランジ部５３ａが電磁石装置１００の上部磁気ヨーク１１０にシール接合されて固定されている。絶縁板５４は第１有底筒体５１の底部５２を構成している。 As shown in FIGS. 1 to 3, the first bottomed cylinder 51 includes a rectangular cylinder 53 provided with a flange portion 53a protruding outward at the lower end, and an inner It is formed in the shape of a square cylinder with a bottom together with a flat plate-like insulating plate 54 fixed so as to close the . For example, the square cylinder 53 is made of metal. As the insulating plate 54, for example, one made of ceramics is used. The flange portion 53 a of the rectangular tube 53 is sealed and fixed to the upper magnetic yoke 110 of the electromagnet device 100 . The insulating plate 54 constitutes the bottom portion 52 of the first bottomed cylinder 51 .

図１及び図２に示すように、第２有底筒体５５は、貫通孔５６ａを有する底部５６と、この底部５６が一端側に内部を閉塞するように設けられた角筒部５７とで有底角筒状に形成されている。底部５６及び角筒部５７は、例えば熱硬化性の絶縁樹脂で一体成形されている。底部５６には、可動プランジャ１１５の周鍔部１１６、環状永久磁石１２０及び補助ヨーク１２５などを収納する凹部５８が設けられている。貫通孔５６ａは、凹部５８に設けられている。この第２有底筒体５５は、絶縁樹脂で形成することによって、金属製の角筒体５３に対するアークの影響を遮断する絶縁機能を有する。
第１有底筒体５１の絶縁板５４には、Ｘ方向である左右方向に離間する一対の貫通孔５４ａ及び５４ｂに個別に挿通されて固定された一対の導体部１４及び１５が設けられている。 As shown in FIGS. 1 and 2, the second bottomed cylindrical body 55 is composed of a bottom portion 56 having a through hole 56a and a square cylindrical portion 57 provided on one end side so that the bottom portion 56 closes the inside. It is formed in the shape of a square tube with a bottom. The bottom portion 56 and the rectangular tubular portion 57 are integrally formed of, for example, a thermosetting insulating resin. The bottom portion 56 is provided with a concave portion 58 that accommodates the peripheral flange portion 116 of the movable plunger 115, the annular permanent magnet 120, the auxiliary yoke 125, and the like. The through hole 56 a is provided in the recess 58 . The second bottomed cylindrical body 55 is made of an insulating resin, and has an insulating function of blocking the influence of the arc on the metal rectangular cylindrical body 53 .
The insulating plate 54 of the first bottomed cylindrical body 51 is provided with a pair of conductor portions 14 and 15 that are individually inserted into a pair of through holes 54a and 54b that are spaced apart in the horizontal direction, which is the X direction, and fixed. there is

＜固定接触子＞
図２に示すように、一対の固定接触子１１及び１２の各々は、接点収納ケース５０の消弧室５９の中に、Ｘ方向に離間して配置されている。一方の固定接触子１１は、固定接点１３が設けられ、かつ可動接触子２０の板厚方向（Ｚ方向）の可動接点２３ａ側に配置された第１導電部１１ａと、可動接触子２０の板厚方向の可動接点２３ａ側とは反対側に配置された第２導電部１１ｂと、可動接触子２０の長手方向（Ｘ方向）の一端側の外で第１導電部１１ａ及び第２導電部１１ｂに連結された第３導電部１１ｃとを有する。同様に、他方の固定接触子１２も、固定接点１３が設けられ、かつ可動接触子２０の板厚方向の可動接点２３ｂ側に配置された第１導電部１２ａと、可動接触子２０の板厚方向の可動接点２３ｂ側とは反対側に配置された第２導電部１２ｂと、可動接触子２０の長手方向（Ｘ方向）の他端側の外で第１導電部１２ａ及び第２導電部１２ｂに連結された第３導電部１２ｃとを有する。すなわち、一対の固定接触子１１及び１２の各々は、互いに向かい合う側を開放したＣ字形状で形成され、固定接点１３の配置面が内面となり、この内面とは反対側の面が外面となる。 <Fixed contact>
As shown in FIG. 2, each of the pair of stationary contacts 11 and 12 is spaced apart in the X direction inside the arc extinguishing chamber 59 of the contact housing case 50 . One fixed contact 11 includes a first conductive portion 11a provided with the fixed contact 13 and arranged on the side of the movable contact 23a in the plate thickness direction (Z direction) of the movable contact 20, and a plate of the movable contact 20. The second conductive portion 11b arranged on the opposite side of the movable contact 23a in the thickness direction, and the first conductive portion 11a and the second conductive portion 11b outside one end side of the movable contact 20 in the longitudinal direction (X direction). and a third conductive portion 11c connected to the Similarly, the other fixed contact 12 is also provided with the fixed contact 13, and the first conductive portion 12a arranged on the movable contact 23b side in the plate thickness direction of the movable contact 20, and the plate thickness of the movable contact 20 The second conductive portion 12b arranged on the side opposite to the movable contact 23b side in the direction of the movable contact 20, and the first conductive portion 12a and the second conductive portion 12b outside the other end side in the longitudinal direction (X direction) of the movable contact 20. and a third conductive portion 12c connected to the . That is, each of the pair of fixed contacts 11 and 12 is formed in a C shape with the sides facing each other open, the surface on which the fixed contact 13 is arranged is the inner surface, and the surface opposite to the inner surface is the outer surface.

一方の固定接触子１１は、第２導電部１１ｂが導体部１４に電気的及び機械的に連結され、第２導電部１１ｂを介して絶縁板５４に固定されている。同様に、他方の固定接触子１２も、第２導電部１２ｂが導体部１５に電気的及び機械的に連結され、第２導電部１２ｂを介して絶縁板５４に固定されている。すなわち、接点収納ケース５０は、一対の固定接触子１１及び１２を支持する絶縁板５４を備えている。一対の固定接触子１１，１２、及び一対の導体部１４，１５は、導電性の金属材料、例えば純度の高い銅で形成されている。
なお、この実施形態では、一対の固定接触子１１及び１２の構成として導体部１４，１５を含まない構成としたが、導体部１４，１５を含む構成としてもよい。 One fixed contact 11 has a second conductive portion 11b electrically and mechanically connected to the conductor portion 14, and is fixed to the insulating plate 54 via the second conductive portion 11b. Similarly, the other fixed contact 12 has a second conductive portion 12b electrically and mechanically connected to the conductor portion 15, and is fixed to the insulating plate 54 via the second conductive portion 12b. That is, the contact housing case 50 has an insulating plate 54 that supports the pair of fixed contacts 11 and 12 . The pair of stationary contacts 11 and 12 and the pair of conductor portions 14 and 15 are made of a conductive metal material such as high-purity copper.
In this embodiment, the pair of fixed contacts 11 and 12 are configured so as not to include the conductor portions 14 and 15 , but may be configured to include the conductor portions 14 and 15 .

＜可動接触子、連結軸＞
図２に示すように、可動接触子２０は、Ｘ方向に延伸し、かつＹ方向に幅及びＺ方向に板厚（厚み）を有する導電板で形成されている。可動接触子２０は、Ｚ方向である板厚方向において互いに反対側に位置する両面のうちの電磁石装置１００側（第２有底筒体５５の底部５６側）の主面２０ｘに、上述した一対の可動接点２３ａ及び２３ｂが長手方向（Ｘ方向）に離間して配置されている。そして、可動接触子２０は、長手方向に離間して配置された一対の可動接点２３ａ及び２３ｂの間の中央部に、Ｚ方向に貫通する貫通孔２４を備えている。 <Movable contact, connecting shaft>
As shown in FIG. 2, the movable contact 20 is formed of a conductive plate extending in the X direction and having a width in the Y direction and a plate thickness (thickness) in the Z direction. The movable contactor 20 is provided on the main surface 20x on the side of the electromagnet device 100 (on the side of the bottom portion 56 of the second bottomed cylinder 55) of the two surfaces opposite to each other in the plate thickness direction, which is the Z direction. movable contacts 23a and 23b are spaced apart in the longitudinal direction (X direction). The movable contactor 20 has a through hole 24 penetrating in the Z direction in the central portion between a pair of movable contacts 23a and 23b that are spaced apart in the longitudinal direction.

可動接触子２０の貫通孔２４には連結軸３０の長手方向の中央部（一端側と他端側との間の中間部）が摺動自在に挿通され、連結軸３０が可動接触子２０を板厚方向（Ｚ方向）に横切るようにして可動接触子２０に連結されている。
連結軸３０の他端側には、Ｃリング３１が固定されている。そして、連結軸３０の長手方向の中央部には外方に突出するフランジ部３２が固定されており、このフランジ部３２が可動接触子２０の主面２０ｘに当接している。 A longitudinal central portion (an intermediate portion between one end and the other end) of the connecting shaft 30 is slidably inserted into the through hole 24 of the movable contact 20 , and the connecting shaft 30 allows the movable contact 20 to pass through. It is connected to the movable contactor 20 so as to traverse in the plate thickness direction (Z direction).
A C ring 31 is fixed to the other end of the connecting shaft 30 . A flange portion 32 protruding outward is fixed to the central portion of the connecting shaft 30 in the longitudinal direction, and the flange portion 32 contacts the main surface 20 x of the movable contactor 20 .

可動接触子２０の長手方向の中央部と連結軸３０のＣリング３１との間の連結軸３０の外周には接触スプリング３３が配置されており、可動接触子２０に対して所定の付勢力を付与している。
連結軸３０は、他端側の先端部３０ａが第１有底筒体５１の底部５２の内面から離間し、他端側が第２有底筒体５５の底部５６に設けられた貫通孔５６ａを貫通して可動プランジャ１１５の上端部にねじ込みにより連結されている。すなわち、連結軸３０は、第２有底筒体５５の底部５６の貫通孔５６ａを通って接点収納ケース５０の内外に亘って延伸している。 A contact spring 33 is arranged on the outer circumference of the connecting shaft 30 between the central portion of the movable contact 20 in the longitudinal direction and the C-ring 31 of the connecting shaft 30 to apply a predetermined biasing force to the movable contact 20 . Granted.
The connecting shaft 30 has a tip portion 30 a on the other end side separated from the inner surface of the bottom portion 52 of the first bottomed cylinder 51 and a through hole 56 a provided in the bottom portion 56 of the second bottomed cylinder 55 on the other end side. It is connected to the upper end of the movable plunger 115 by screwing. That is, the connecting shaft 30 extends through the inside and outside of the contact housing case 50 through the through hole 56 a of the bottom portion 56 of the second bottomed cylinder 55 .

＜絶縁カバー＞
図１及び図２に示すように、一対の固定接触子１１及び１２の各々には、アークの発生を規制する絶縁カバー４０が個別に装着されている。この２つの絶縁カバー４０は、熱硬化性絶縁樹脂を用いた成形によって形成されている。一方の絶縁カバー４０は、固定接触子１１の第２導電部１１ｂ及び第３導電部１１ｃを被うと共に、詳細に図示していないが、第１有底筒体５１の絶縁板５４の内面も覆うものである。同様に、他方の絶縁カバー４０も、固定接触子１２の第２導電部１２ｂ及び第３導電部１２ｃを被うと共に、第１有底筒体５１の絶縁板５４の内面も覆うものである。 <Insulation cover>
As shown in FIGS. 1 and 2, each of the pair of stationary contacts 11 and 12 is individually fitted with an insulating cover 40 for restricting arc generation. These two insulating covers 40 are formed by molding using a thermosetting insulating resin. One insulating cover 40 covers the second conductive portion 11b and the third conductive portion 11c of the fixed contact 11, and also covers the inner surface of the insulating plate 54 of the first bottomed cylindrical body 51 (not shown in detail). It covers. Similarly, the other insulating cover 40 also covers the second conductive portion 12 b and the third conductive portion 12 c of the fixed contact 12 and also covers the inner surface of the insulating plate 54 of the first bottomed cylinder 51 .

図２及び図４に示すように、一方の絶縁カバー４０は、第２導電部１１ｂの内面、側面及び外面を覆う筒状の第１カバー部４１と、第１カバー部４１に連結され、かつ第３導電部１１ｃの内面及び側面を覆う第２カバー部４２とを備えている。また、一方の絶縁カバー４０は、第１カバー部４１の幅方向の２つの側面に個々に連結され、かつ絶縁板５４の内面を覆う２つの第３カバー部４３を備えている。一方の絶縁カバー４０は、固定接触子１１の第２導電部１１ｂを第１カバー部４１の内側に差し込むことによって固定接触子１１に装着されている。 As shown in FIGS. 2 and 4, one insulating cover 40 is connected to a cylindrical first cover portion 41 covering the inner surface, side surface and outer surface of the second conductive portion 11b, and the first cover portion 41, and A second cover portion 42 is provided to cover the inner surface and the side surface of the third conductive portion 11c. One insulating cover 40 includes two third cover portions 43 that are individually connected to the two widthwise side surfaces of the first cover portion 41 and that cover the inner surface of the insulating plate 54 . One insulating cover 40 is attached to the fixed contact 11 by inserting the second conductive portion 11 b of the fixed contact 11 into the first cover portion 41 .

同様に、他方の絶縁カバー４０も、第２導電部１２ｂの内面、側面及び外面を覆う筒状の第１カバー部４１と、第１カバー部４１に連結され、かつ第３導電部１２ｃの内面及び側面を覆う第２カバー部４２とを備えている。また、同様に、他方の絶縁カバー４０も、第１カバー部４１の幅方向の２つの側面に個々に連結され、かつ絶縁板５４の内面を覆う２つの第３カバー部４３を備えている。また、同様に、他方の絶縁カバー４０も、固定接触子１２の第２導電部１２ｂを第１カバー部４１の内側に差し込むことによって固定接触子１２に装着されている。 Similarly, the insulating cover 40 on the other side is also connected to a cylindrical first cover portion 41 covering the inner surface, the side surface and the outer surface of the second conductive portion 12b, and the first cover portion 41 and the inner surface of the third conductive portion 12c. and a second cover portion 42 covering the side surface. Similarly, the other insulating cover 40 also has two third cover portions 43 that are individually connected to the two widthwise side surfaces of the first cover portion 41 and cover the inner surface of the insulating plate 54 . Similarly, the other insulating cover 40 is attached to the fixed contact 12 by inserting the second conductive portion 12 b of the fixed contact 12 into the first cover portion 41 .

図２及び図４に示すように、２つの絶縁カバー４０の各々は、更に、連結軸３０の他端側の先端部３０ａが第１有底筒体５１の底部５２の内面から離間するように可動接触子２０を支持する突起部４４を備えている。突起部４４は、第１カバー部４１の可動接触子２０と対向する部分から可動接触子２０に向かって突出している。突起部４４は、後述する接点装置１０の製造方法において、第１有底筒体５１に第２有底筒体５５を組み付けて接点収納ケース５０を組み立てる（形成する）ときに、可動接触子２０を可動接触子２０の可動接点２３ａ，２３ｂ側とは反対側から支持する。すなわち、一方の絶縁カバー４０に設けられた突起部４４で可動接触子２０の一端側の裏面２０ｙを支持し、他方の絶縁カバー４０に設けられた突起部４４で可動接触子２０の他端側の裏面２０ｙを支持する。 As shown in FIGS. 2 and 4, each of the two insulating covers 40 is further arranged such that the tip 30a on the other end side of the connecting shaft 30 is separated from the inner surface of the bottom 52 of the first bottomed cylindrical body 51. A protrusion 44 that supports the movable contact 20 is provided. The projecting portion 44 protrudes toward the movable contact 20 from a portion of the first cover portion 41 facing the movable contact 20 . The projecting portion 44 is formed on the movable contact 20 when the second bottomed cylinder 55 is assembled to the first bottomed cylinder 51 to assemble (form) the contact storage case 50 in the manufacturing method of the contact device 10 to be described later. are supported from the opposite side of the movable contact 20 to the movable contacts 23a and 23b. That is, the protruding portion 44 provided on one insulating cover 40 supports the back surface 20y of the movable contact 20 on the one end side, and the protruding portion 44 provided on the other insulating cover 40 supports the movable contact 20 on the other end side. supports the rear surface 20y of the .

ここで、突起部４４は、接点装置１０が開極状態（釈放状態）のときに、可動接触子２０から離間していることが好ましいが、可動接触子２０に接していてもよい。この実施形態では、突起部４４は、開極状態において、可動接触子２０の主面２０ｘとは反対側の裏面２０ｙに接している。 Here, the protrusion 44 is preferably separated from the movable contact 20 when the contact device 10 is in the open state (released state), but may be in contact with the movable contact 20 . In this embodiment, the protruding portion 44 is in contact with the back surface 20y of the movable contact 20 opposite to the main surface 20x in the open state.

図４及び図５に示すように、突起部４４は、可動接触子２０の長手方向と交差する方向に延伸している。この実施形態において、突起部４４は、可動接触子２０の長手方向と直交するＹ方向に延伸し、かつ第１カバー部４１の全幅に亘って直線状に延伸している。また、突起部４４は、可動接触子２０の幅よりも長く形成されている。また、図１及び図２に示すように、一方の絶縁カバー４０の突起部４４は一方の固定接触子１１の固定接点１３及び可動接触子２０の一端側の可動接点２３ａよりも連結軸３０側に配置され、同様に他方の絶縁カバー４０の突起部４４も他方の固定接触子１２の固定接点１３及び可動接触子２０の他端側の可動接点２３ｂよりも連結軸３０側に配置されている。 As shown in FIGS. 4 and 5 , the protrusion 44 extends in a direction crossing the longitudinal direction of the movable contact 20 . In this embodiment, the projecting portion 44 extends in the Y direction perpendicular to the longitudinal direction of the movable contact 20 and linearly extends over the entire width of the first cover portion 41 . Moreover, the protrusion 44 is formed longer than the width of the movable contact 20 . 1 and 2, the projecting portion 44 of one insulating cover 40 is closer to the connecting shaft 30 than the fixed contact 13 of the fixed contact 11 and the movable contact 23a on the one end side of the movable contact 20. Similarly, the projecting portion 44 of the other insulating cover 40 is also arranged closer to the connecting shaft 30 than the fixed contact 13 of the other fixed contact 12 and the movable contact 23b on the other end side of the movable contact 20. .

〔電磁接触器の動作〕
次に、電磁接触器１の動作について、図１及び図２を参照して説明する。
今、一対の固定接触子１１及び１２において、一方の固定接触子１１が導体部１４を介して大電流を供給する電力源に接続され、他方の固定接触子１２が導体部１５を介して負荷に接続されているものとする。
そして、この状態で、電磁石装置１００における励磁コイル１０８が非励磁状態にあって、電磁石装置１００で可動プランジャ１１５を降下させる励磁力を発生していない釈放状態にあるものとする。この釈放状態では、可動プランジャ１１５が復帰スプリング１１４によって上部磁気ヨーク１１０から離れる上方向に付勢される。これと同時に、環状永久磁石１２０の磁力による吸引力が補助ヨーク１２５に作用されて、可動プランジャ１１５の周鍔部１１６が吸引される。このため、可動プランジャ１１５の周鍔部１１６の上面が補助ヨーク１２５の下面に当接している。 [Operation of the electromagnetic contactor]
Next, the operation of the electromagnetic contactor 1 will be described with reference to FIGS. 1 and 2. FIG.
Now, in a pair of fixed contacts 11 and 12, one fixed contact 11 is connected through conductor portion 14 to a power source that supplies a large current, and the other fixed contact 12 is connected through conductor portion 15 to a load. shall be connected to
In this state, the exciting coil 108 in the electromagnet device 100 is in a non-excited state, and the electromagnet device 100 is in a release state in which no exciting force is generated to move the movable plunger 115 downward. In this released state, the movable plunger 115 is urged upward away from the upper magnetic yoke 110 by the return spring 114 . At the same time, the attractive force due to the magnetic force of the annular permanent magnet 120 is applied to the auxiliary yoke 125, and the peripheral collar portion 116 of the movable plunger 115 is attracted. Therefore, the upper surface of the peripheral flange portion 116 of the movable plunger 115 is in contact with the lower surface of the auxiliary yoke 125 .

このため、可動プランジャ１１５に連結軸３０を介して連結されている可動接触子２０の一対の可動接点２３ａ及び２３ｂが一対の固定接触子１１及び１２の固定接点１３から上方（離れる方向）に所定の距離だけ離間している。このため、一対の固定接触子１１及び１２間の電流路が遮断状態であり、接点装置１０が開極状態となっている。
このように、電磁石装置１００の釈放状態では、可動プランジャ１１５に復帰スプリング１１４による付勢力と環状永久磁石１２０による吸引力との双方が作用しているので、可動プランジャ１１５が外部からの振動や衝撃等によって不用意に下降することがなく、誤動作を確実に防止することができる。 For this reason, the pair of movable contacts 23a and 23b of the movable contact 20 connected to the movable plunger 115 via the connecting shaft 30 is positioned upward (separately) from the fixed contacts 13 of the pair of fixed contacts 11 and 12. are separated by a distance of Therefore, the current path between the pair of fixed contacts 11 and 12 is cut off, and the contact device 10 is opened.
In this way, when the electromagnet device 100 is released, both the biasing force of the return spring 114 and the attractive force of the annular permanent magnet 120 act on the movable plunger 115, so that the movable plunger 115 is not subject to external vibrations or shocks. Therefore, it is possible to reliably prevent malfunctions by preventing accidental descent due to, for example, an accident.

この釈放状態から、電磁石装置１００の励磁コイル１０８を励磁すると、この電磁石装置１００で励磁力を発生させて、可動プランジャ１１５を復帰スプリング１１４の付勢力及び環状永久磁石１２０の吸引力に抗して下方に押し下げる。
そして、可動プランジャ１１５が復帰スプリング１１４の付勢力及び環状永久磁石１２０の吸引力に抗して速やかに下降する。そして、周鍔部１１６の下面が上部磁気ヨーク１１０の上面に当接することにより、可動プランジャ１１５の下降が停止される。
このように、可動プランジャ１１５が下降することにより、可動プランジャ１１５に連結軸３０を介して連結されている可動接触子２０も下降し、可動接触子２０の可動接点２３ａ，２３ｂが一対の固定接触子１１，１２の固定接点１３，１３に接触スプリング３３の接触圧で接触する。 When the exciting coil 108 of the electromagnet device 100 is excited from this released state, the electromagnet device 100 generates an exciting force to move the movable plunger 115 against the biasing force of the return spring 114 and the attractive force of the annular permanent magnet 120. push down.
Then, the movable plunger 115 descends quickly against the biasing force of the return spring 114 and the attractive force of the annular permanent magnet 120 . Then, when the lower surface of the peripheral collar portion 116 contacts the upper surface of the upper magnetic yoke 110, the downward movement of the movable plunger 115 is stopped.
As the movable plunger 115 descends in this way, the movable contactor 20 connected to the movable plunger 115 via the connecting shaft 30 also descends, and the movable contacts 23a and 23b of the movable contactor 20 move into a pair of stationary contacts. The fixed contacts 13 , 13 of the elements 11 , 12 are brought into contact with the contact pressure of the contact springs 33 .

このため、接点装置１０は、外部電力供給源の大電流が固定接触子１１、可動接触子２０、及び固定接触子１２を通じて負荷に供給される閉極状態となる。
この接点装置１０の閉極状態から、負荷への電流供給を遮断する場合には、電磁石装置１００の励磁コイル１０８の励磁を停止する。
これによって、電磁石装置１００で可動プランジャ１１５を下方に移動させる励磁力がなくなることにより、可動プランジャ１１５が復帰スプリング１１４の付勢力によって上昇し、周鍔部１１６が補助ヨーク１２５に近づくに従って環状永久磁石１２０の吸引力が増加する。 Therefore, the contact device 10 enters a closed state in which a large current from the external power supply source is supplied to the load through the fixed contact 11, the movable contact 20, and the fixed contact 12. FIG.
When the current supply to the load is cut off from the closed state of the contact device 10, the excitation of the exciting coil 108 of the electromagnet device 100 is stopped.
As a result, the excitation force for moving the movable plunger 115 downward in the electromagnet device 100 disappears, and the movable plunger 115 rises due to the urging force of the return spring 114. As the peripheral flange 116 approaches the auxiliary yoke 125, the annular permanent magnet is pulled upward. 120 suction power is increased.

この可動プランジャ１１５が上昇することにより、可動プランジャ１１５に連結軸３０を介して連結された可動接触子２０が上昇する。これに応じて接触スプリング３３で接触圧を与えている間は可動接触子２０が固定接触子１１及び１２に接触している。その後、接触スプリング３３の接触圧がなくなった時点で可動接触子２０が固定接触子１１及び１２から上方に離間する開極状態となる。 As the movable plunger 115 rises, the movable contactor 20 connected to the movable plunger 115 via the connecting shaft 30 rises. In response to this, the movable contact 20 is in contact with the fixed contacts 11 and 12 while the contact spring 33 is applying contact pressure. After that, when the contact pressure of the contact spring 33 disappears, the movable contact 20 is separated upward from the fixed contacts 11 and 12, and becomes an open state.

この開極状態となると、固定接触子１１及び１２の固定接点１３と可動接触子２０の可動接点２３ａ及び２３ｂとの間にアークが発生し、このアークによって電流の通電状態が継続される。このとき、固定接触子１１及び１２の各々には第２導電部１１ｂ，１２ｂ及び第３導電部１１ｃ，１２ｃを覆う絶縁カバー４０が個別に装置されているので、アークを固定接触子１１及び１２の固定接点１３と可動接触子２０の可動接点２３ａ，２３ｂとの間のみに発生させることができる。このため、アークが固定接触子１１及び１２上を動くことを確実に防止してアークの発生状態を安定させることができ、消弧性能を向上させることができる。しかも、固定接触子１１及び１２の両側面も絶縁カバー４０で覆われているので、アークの先端が短絡することも確実に防止することができる。 In this open state, an arc is generated between the fixed contacts 13 of the fixed contacts 11 and 12 and the movable contacts 23a and 23b of the movable contact 20, and this arc continues the current conducting state. At this time, each of the fixed contacts 11 and 12 is individually provided with an insulating cover 40 that covers the second conductive portions 11b and 12b and the third conductive portions 11c and 12c. can be generated only between the fixed contact 13 and the movable contacts 23 a and 23 b of the movable contactor 20 . Therefore, the arc can be reliably prevented from moving on the fixed contacts 11 and 12, the arc generation state can be stabilized, and the arc extinguishing performance can be improved. Moreover, since both side surfaces of the fixed contacts 11 and 12 are also covered with the insulating cover 40, it is possible to reliably prevent short-circuiting of the tips of the arcs.

また、一対の固定接触子１１，１２の第２導電部１１ｂ，１２ｂ及び第３導電部１１ｃ，１２ｃが絶縁カバー４０で個別に覆われているので、可動接触子２０の両端部と一対の固定接触子１１，１２の第２導電部１１ｂ，１２ｂ及び第３導電部１１ｃ，１２ｃとの間の絶縁距離を絶縁カバー４０によって確保することができ、可動接触子２０の可動方向の高さを短縮することができる。したがって、接点装置１０を小型化することができる。
更に、一方の固定接触子１２に装着された絶縁カバー４０の第１カバー部４１には、可動接触子２０の長手方向と交差する方向に延伸し、かつ可動接点２３ａよりも連結軸３０側に配置された突起部４４が設けられている。同様に、他方の固定接触子１２に装着された絶縁カバー４０の第１カバー部４１にも、可動接触子２０の長手方向と交差する方向に延伸し、かつ可動接点２３ｂよりも連結軸３０側に配置された突起部４４が設けられている。このため、アークが磁場の影響で連結軸３０側に飛ぶことも抑制することができる。 In addition, since the second conductive portions 11b, 12b and the third conductive portions 11c, 12c of the pair of fixed contacts 11, 12 are individually covered with the insulating cover 40, both ends of the movable contact 20 and the pair of fixed contacts The insulation distance between the second conductive portions 11b, 12b and the third conductive portions 11c, 12c of the contacts 11, 12 can be secured by the insulating cover 40, and the height of the movable contact 20 in the movable direction can be shortened. can do. Therefore, the contact device 10 can be miniaturized.
Furthermore, a first cover portion 41 of an insulating cover 40 attached to one fixed contact 12 has a contact extending in a direction intersecting the longitudinal direction of the movable contact 20 and closer to the connecting shaft 30 than the movable contact 23a. Disposed protrusions 44 are provided. Similarly, the first cover portion 41 of the insulating cover 40 attached to the other fixed contact 12 also extends in a direction intersecting the longitudinal direction of the movable contact 20 and is closer to the connecting shaft 30 than the movable contact 23b. is provided with a protrusion 44 positioned at the . Therefore, it is possible to suppress the arc from flying toward the connecting shaft 30 due to the influence of the magnetic field.

＜接点装置の製造方法＞
次に、接点装置１０の製造方法について、図６から図９を用いて説明する。なお、ここでは、Ｚ方向を鉛直方向として説明する。
まず、図２に示す第１有底筒体５１、可動接触子２０及び第２有底筒体５５を準備する。第１有底筒体５１は、固定接点１３を有し、かつ突起部４４が設けられた絶縁カバー４０を有する一対の固定接触子１１及び１２が底部５２の内側に配置されている。そして、一方の固定接触子１１は導体部１４を介して第１有底筒体５１の底部５２に固定され、他方の固定接触子１２も導体部１５を介して第１有底筒体５１の底部５２に固定されている。可動接触子２０は、一対の固定接触子１１及び１２の固定接点１３と対向する一対の可動接点２３ａ及び２３ｂが長手方向の両側に設けられ、かつ連結軸３０の長手方向の中央部が一対の可動接点２３ａ及び２３ｂの間を板厚方向に横切るようにして連結されている。第２有底筒体５５は、底部５６に連結軸３０の一端側が挿通する貫通孔５６ａを有する。 <Method for manufacturing contact device>
Next, a method for manufacturing the contact device 10 will be described with reference to FIGS. 6 to 9. FIG. In addition, here, the Z direction is described as the vertical direction.
First, the first bottomed cylinder 51, the movable contact 20, and the second bottomed cylinder 55 shown in FIG. 2 are prepared. The first bottomed cylindrical body 51 has a fixed contact 13 and a pair of fixed contacts 11 and 12 having an insulating cover 40 provided with a protrusion 44 arranged inside a bottom portion 52 . One fixed contact 11 is fixed to the bottom portion 52 of the first bottomed cylindrical body 51 via the conductor portion 14 , and the other fixed contact 12 is also fixed to the first bottomed cylindrical body 51 via the conductor portion 15 . It is fixed to the bottom 52 . The movable contact 20 is provided with a pair of movable contacts 23a and 23b facing the fixed contact 13 of the pair of fixed contacts 11 and 12 on both sides in the longitudinal direction. The movable contacts 23a and 23b are connected across the plate thickness direction. The second bottomed cylindrical body 55 has a through hole 56 a through which one end side of the connecting shaft 30 is inserted in the bottom portion 56 .

次に、図６に示すように、第１有底筒体５１の底部５２が鉛直方向（Ｚ方向）と直交し、かつ第１有底筒体５１の開放端側が上向きとなるように第１有底筒体５１を作業台や治具（図示せず）などに設置する。
次に、図７（ａ），（ｂ）に示すように、一対の固定接触子１１及び１２の固定接点１３に一対の可動接点２３ａ及び２３ｂが個別に対向し、かつ連結軸３０の他端側の先端部３０ａが第１有底筒体５１の底部５２内面から離間するように２つの絶縁カバー４０の各々の突起部４４に支持された状態で可動接触子２０を第１有底筒体５１内に配置する。このとき、２つの絶縁カバー４０の各々の突起部４４は、可動接触子２０を可動接触子２０の可動接点２３ａ，２３ｂ側（主面２０ｘ側）とは反対側（裏面２０ｙ側）から支持する。 Next, as shown in FIG. 6, the first bottomed cylinder 51 is placed so that the bottom portion 52 of the first bottomed cylinder 51 is perpendicular to the vertical direction (Z direction) and the open end side of the first bottomed cylinder 51 faces upward. The bottomed cylindrical body 51 is installed on a workbench, a jig (not shown), or the like.
Next, as shown in FIGS. 7A and 7B, a pair of movable contacts 23a and 23b are individually opposed to the fixed contacts 13 of the pair of fixed contacts 11 and 12, and the other end of the connecting shaft 30 is The movable contact 20 is supported by the projecting portions 44 of the two insulating covers 40 so that the tip portion 30 a on the side is separated from the inner surface of the bottom portion 52 of the first bottomed cylinder 51 . 51. At this time, the protrusions 44 of the two insulating covers 40 support the movable contact 20 from the opposite side (rear surface 20y side) to the movable contact points 23a and 23b (main surface 20x side) of the movable contact 20. .

この工程において、可動接触子２０は、その長手方向において２つの絶縁カバー４０の各々の突起部４４に２点支持で支持されている。そして、この可動接触子２０に連結された連結軸３０は、その他端側の先端部３０ａが第１有底筒体５１の底部５２の内面から離間している。したがって、第１有底筒体５１内に連結軸３０を自立して配置することができる。
また、この工程において、２つの絶縁カバー４０の各々の突起部４４は、可動接触子２０の長手方向と交差する方向に延伸しているので、連結軸３０をより安定した状態で自立させることができる。 In this process, the movable contactor 20 is supported at two points in the longitudinal direction by the protrusions 44 of each of the two insulating covers 40 . The connecting shaft 30 connected to the movable contactor 20 is separated from the inner surface of the bottom portion 52 of the first bottomed cylindrical body 51 at the tip portion 30 a on the other end side. Therefore, the connecting shaft 30 can be arranged independently in the first bottomed cylinder 51 .
Also, in this process, the projections 44 of each of the two insulating covers 40 extend in the direction crossing the longitudinal direction of the movable contactor 20, so that the connecting shaft 30 can stand on its own in a more stable state. can.

ここで、一対の固定接触子１１，１２はＣ字形状で形成されているため、可動接触子の一端側を一方の固定接触子１１の第１導電部１１ａと第２導電部１１ｂとの間に配置し、可動接触子２０の他端側を他方の固定接触子１２の第１導電部１２ａと第２導電部１２ｂとの間に配置する必要がある。そこで、第１有底筒体５１内への可動接触子２０の配置は、まず、図９（ａ）に示すように、一対の固定接触子１１及び１２の外側に可動接触子２０の一端側及び他端側が位置するように一対の固定接触子１１及び１２の配列方向に対して可動接触子２０の長手方向を交差させた状態で一対の固定接触子１１及び１２の間に連結軸３０の一端側を差し入れる。そして、連結軸３０を中心に可動接触子２０を回転させて、図９（ｂ）に示すように、一対の固定接触子１１及び１２の配列方向に可動接触子２０の長手方向を合わせる。これにより、図７（ａ）に示すように、一対の固定接触子１１及び１２の固定接点１３に一対の可動接点２３ａ及び２３ｂが個別に対向し、かつ連結軸３０の他端側の先端部３０ａが第１有底筒体５１の底部５２の内面から離間するように可動接触子２０を絶縁カバー４０の各々の突起部４４に支持した状態で第１有底筒体５１内に可動接触子２０を配置することができる。 Here, since the pair of fixed contacts 11 and 12 are formed in a C shape, one end side of the movable contact is placed between the first conductive portion 11a and the second conductive portion 11b of one fixed contact 11. , and the other end of the movable contact 20 must be placed between the first conductive portion 12a and the second conductive portion 12b of the fixed contact 12 on the other side. Therefore, the arrangement of the movable contact 20 in the first bottomed cylindrical body 51 is as follows. First, as shown in FIG. and the other end of the connecting shaft 30 between the pair of fixed contacts 11 and 12 in a state in which the longitudinal direction of the movable contact 20 intersects the arrangement direction of the pair of fixed contacts 11 and 12. Insert one end. Then, the movable contactor 20 is rotated around the connecting shaft 30 to align the longitudinal direction of the movable contactor 20 with the arrangement direction of the pair of fixed contactors 11 and 12 as shown in FIG. 9(b). As a result, as shown in FIG. 7(a), the pair of movable contacts 23a and 23b are individually opposed to the fixed contacts 13 of the pair of fixed contacts 11 and 12, and the distal end of the connecting shaft 30 on the other end side. The movable contact 20 is supported by the projections 44 of the insulating cover 40 so that the contact 30a is separated from the inner surface of the bottom 52 of the first bottomed cylinder 51, and the movable contact 20 is placed inside the first bottomed cylinder 51. 20 can be placed.

次に、図８（ａ），（ｂ）に示すように、可動接触子２０が２つの絶縁カバー４０の各々の突起部４４に支持された状態で連結軸３０の一端側を第２有底筒体５５の底部５６の貫通孔５６ａに挿通して第２有底筒体５５を第１有底筒体５１に組み付ける。第２有底筒体５５の組み付けは、第１有底筒体５１及び第２有底筒体５５の各々の開放端側を向かい合わせた状態で第１有底筒体５１内に第２有底筒体５５を挿入することによって行われる。組み付け後の第２有底筒体５５は、その開放端側が第１有底筒体５１の底部５２側に位置する。 Next, as shown in FIGS. 8(a) and 8(b), one end side of the connecting shaft 30 is connected to the second closed end while the movable contact 20 is supported by the projections 44 of the two insulating covers 40 respectively. The second bottomed cylinder 55 is assembled to the first bottomed cylinder 51 by inserting it through the through hole 56 a of the bottom portion 56 of the cylinder 55 . The second bottomed cylinder 55 is assembled by inserting the second bottomed cylinder 51 into the first bottomed cylinder 51 with the open ends of the first bottomed cylinder 51 and the second bottomed cylinder 55 facing each other. This is done by inserting the bottom cylinder 55 . The open end side of the assembled second bottomed cylinder 55 is positioned on the bottom portion 52 side of the first bottomed cylinder 51 .

この工程において、連結軸３０は第１有底筒体５１内に自立して配置されているので、人の手で連結軸３０を支えることなく、連結軸３０の一端側を第２有底筒体５５の底部５６の貫通孔５６ａに挿通して第２有底筒体５５を第１有底筒体５１に組み付けることができる。
この工程により、一対の固定接触子１１，１２、可動接触子２０及び連結軸３０を収納する接点収納ケース５０の組み立てが完了すると共に、接点装置１０がほぼ完成する。この後、接点装置１０と電磁石装置１００とを組み合わせることにより電磁接触器１がほぼ完成する。 In this step, since the connecting shaft 30 is independently arranged in the first bottomed cylinder 51, one end side of the connecting shaft 30 can be moved into the second bottomed cylinder without supporting the connecting shaft 30 manually. The second bottomed cylinder 55 can be assembled to the first bottomed cylinder 51 by inserting it through the through hole 56 a of the bottom portion 56 of the body 55 .
By this process, assembly of the contact housing case 50 housing the pair of fixed contacts 11 and 12, the movable contact 20 and the connecting shaft 30 is completed, and the contact device 10 is almost completed. After that, by combining the contact device 10 and the electromagnet device 100, the electromagnetic contactor 1 is almost completed.

〔実施形態の効果〕
以上説明したように、この実施形態によれば、以下の効果が得られる。
この実施形態の接点装置１０は、一対の固定接触子１１及び１２の各々に絶縁カバー４０が個別に装着されている。そして、一対の固定接触子１１及び１２に個別に装着された２つの絶縁カバー４０の各々は、接点装置１０の製造において、第１有底筒体５１に第２有底筒体５５を組み付けるときに、連結軸３０の他端側の先端部３０ａが第１有底筒体５１の底部５２の内面から離間する状態で可動接触子２０を支持する突起部４４を備えている。したがって、上述したように、接点装置１０の製造において、第１有底筒体５１内に連結軸３０を自立して配置することができるので、人の手で連絡軸３０を支えることなく、連結軸３０の一端側を第２有底筒体５５の底部５６の貫通孔５６ａに挿通して第２有底筒体５５を第１有底筒体５１に組み付けることができる。これにより、自動機による接点収納ケース５０の組立自動化を図ることが可能となる。 [Effects of Embodiment]
As described above, according to this embodiment, the following effects are obtained.
In the contact device 10 of this embodiment, an insulating cover 40 is attached to each of the pair of fixed contacts 11 and 12 individually. Each of the two insulating covers 40 individually attached to the pair of fixed contacts 11 and 12 is used when the second bottomed cylinder 55 is assembled to the first bottomed cylinder 51 in manufacturing the contact device 10. Furthermore, the connecting shaft 30 has a protrusion 44 that supports the movable contact 20 while the tip 30 a on the other end side of the connecting shaft 30 is separated from the inner surface of the bottom 52 of the first bottomed cylinder 51 . Therefore, as described above, in the manufacturing of the contact device 10, the connecting shaft 30 can be arranged independently in the first bottomed cylinder 51, so that the connecting shaft 30 can be connected without supporting the connecting shaft 30 manually. The second bottomed cylinder 55 can be assembled to the first bottomed cylinder 51 by inserting one end side of the shaft 30 into the through hole 56 a of the bottom portion 56 of the second bottomed cylinder 55 . This makes it possible to automate the assembly of the contact storage case 50 by an automatic machine.

また、２つの絶縁カバー４０の各々の突起部４４は、可動接触子２０の長手方向と交差する方向に延伸しているので、接点装置１０の製造において、第１有底筒体５１内に可動接触子２０を配置する際、連結軸３０をより安定した状態で自立させることができる。
また、２つの絶縁カバー４０の各々の突起部４４は、一対の固定接触子１１及び１２の固定接点１３、並びに可動接触子２０の一対の可動接点２３ａ及び２３ｂよりも連結軸３０側に配置されているので、アークが磁場の影響で連結軸３０側に飛ぶことを抑制することができる。
また、この実施形態の接点装置１０の製造方法は、第１有底筒体５１内に自立して配置された連結軸３０の一端側を第２有底筒体５５の底部５６の貫通孔５６ａに挿通して第２有底筒体５５を第１有底筒体５１に組み付けるので、接点収納ケース５０を自動機により自動で組み立てた接点装置及びそれを備えた電磁接触器を提供することが可能となる。 In addition, since the projections 44 of each of the two insulating covers 40 extend in the direction crossing the longitudinal direction of the movable contactor 20, they can be moved inside the first bottomed cylindrical body 51 during the manufacture of the contact device 10. When arranging the contactor 20, the connecting shaft 30 can stand on its own in a more stable state.
The projections 44 of each of the two insulating covers 40 are arranged closer to the connecting shaft 30 than the fixed contacts 13 of the pair of fixed contacts 11 and 12 and the pair of movable contacts 23a and 23b of the movable contact 20. Therefore, it is possible to suppress the arc from flying toward the connecting shaft 30 due to the influence of the magnetic field.
In addition, in the manufacturing method of the contact device 10 of this embodiment, one end side of the connecting shaft 30 arranged independently in the first bottomed cylinder 51 is connected to the through hole 56 a of the bottom portion 56 of the second bottomed cylinder 55 . Since the second bottomed cylindrical body 55 is assembled to the first bottomed cylindrical body 51 by inserting the second bottomed cylindrical body 55 into the first bottomed cylindrical body 51, it is possible to provide a contact device in which the contact storage case 50 is automatically assembled by an automatic machine and an electromagnetic contactor having the contact device. It becomes possible.

なお、上述の実施形態では、第１有底筒体５１を角筒体５３及び絶縁板５４で構成した場合について説明したが、これに限定されるものではない。例えば、図１０に示すように、第１有底筒体５１は、底部６２及び角筒部６３がセラミックスや合成樹脂によって一体成形され、開放端側にフランジ部材６４が取り付けられた構成としてもよい。そして、底部６２には、一対の貫通孔５４ａ及び５４ｂが設けられている。
以上、本発明を上記一実施形態に基づき具体的に説明したが、本発明は上記一実施形態に限定されるものではなく、その要旨を逸脱しない範囲において種々変更可能であることは勿論である。 In the above-described embodiment, the case where the first bottomed cylindrical body 51 is composed of the rectangular cylindrical body 53 and the insulating plate 54 has been described, but the present invention is not limited to this. For example, as shown in FIG. 10, the first bottomed cylindrical body 51 may be configured such that the bottom portion 62 and the square cylindrical portion 63 are integrally formed of ceramics or synthetic resin, and a flange member 64 is attached to the open end side. . The bottom portion 62 is provided with a pair of through holes 54a and 54b.
Although the present invention has been specifically described above based on the above-described embodiment, the present invention is not limited to the above-described embodiment and, of course, can be variously modified without departing from the scope of the invention. .

１…電磁接触器
１０…接点装置
１１，１２…固定接触子
１１ａ，１２ａ…第１導電部
１１ｂ，１２ｂ…第２導電部
１１ｃ，１２ｃ…第３導電部
１３…固定接点
１４，１５…導体部
２０…可動接触子
２０ｘ…主面
２３ａ，２３ｂ…可動接点
２４貫通孔
３０…連結軸
３０ａ…先端部
３１…Ｃリング
３２…フランジ部
３３…接触スプリング
４０…絶縁カバー
４１…第１カバー部
４２…第２カバー部
４３…第３カバー部
４４…突起部
５０…接点収納ケース
５１…第１有底筒体
５２…底部
５３…角筒体
５３ａ…フランジ部
５４…絶縁板
５４ａ，５４ｂ…貫通孔
５５…第２有底筒体
５６…底部
５６ａ…貫通孔
５７…角筒部
５８…凹部
５９…消弧室
６２…底部
６３…角筒部
６４…フランジ部材
１００…電磁石装置
１０１…磁気ヨーク
１０２…底部
１０３…円筒状補助ヨーク
１０４…スプール
１０５…中央円筒部
１０６…下フランジ部
１０７…上フランジ部
１０８…励磁コイル
１１０…上部磁気ヨーク
１１０ａ…貫通孔
１１４…復帰スプリング
１１５…可動プランジャ
１１６…周鍔部
１２０…環状永久磁石
１２１…中心開口
１３０…キャップ DESCRIPTION OF SYMBOLS 1... Electromagnetic contactor 10... Contact device 11, 12... Fixed contacts 11a, 12a... First conductive parts 11b, 12b... Second conductive parts 11c, 12c... Third conductive part 13... Fixed contacts 14, 15... Conductor parts DESCRIPTION OF SYMBOLS 20... Movable contact 20x... Main surface 23a, 23b... Movable contact 24 through-hole 30... Connecting shaft 30a... Tip part 31... C ring 32... Flange part 33... Contact spring 40... Insulating cover 41... First cover part 42... Second cover part 43 Third cover part 44 Protrusion 50 Contact storage case 51 First cylinder with bottom 52 Bottom 53 Rectangular cylinder 53a Flange 54 Insulating plate 54a, 54b Through hole 55 Second cylindrical body with bottom 56 Bottom 56a Through hole 57 Rectangular tube 58 Recess 59 Arc-extinguishing chamber 62 Bottom 63 Rectangular tube 64 Flange member 100 Electromagnet device 101 Magnetic yoke 102 Bottom DESCRIPTION OF SYMBOLS 103... Cylindrical auxiliary yoke 104... Spool 105... Central cylindrical part 106... Lower flange part 107... Upper flange part 108... Exciting coil 110... Upper magnetic yoke 110a... Through hole 114... Return spring 115... Movable plunger 116... Peripheral flange DESCRIPTION OF SYMBOLS 120... Annular permanent magnet 121... Center opening 130... Cap

Claims (12)

接点収納ケース内に、
固定接点を有する一対の固定接触子と、
前記一対の固定接触子の前記固定接点に対して接離可能な一対の可動接点が長手方向の両端側に設けられ、かつ連結軸が前記一対の可動接点の間を板厚方向に横切るようにして連結された可動接触子と、
前記固定接触子の固定接点以外を覆う絶縁カバーと、を備え、
前記接点収納ケースは、前記固定接触子を支持する絶縁板を備え、
前記絶縁カバーの各々は、前記連結軸が前記絶縁板から離間する状態で前記可動接触子を支持する突起部を備えていることを特徴とする接点装置。 In the contact storage case,
a pair of fixed contacts having fixed contacts;
A pair of movable contacts that can be brought into contact with and separated from the fixed contacts of the pair of fixed contacts are provided on both ends in the longitudinal direction, and a connecting shaft traverses between the pair of movable contacts in the plate thickness direction. a movable contact connected by
and an insulating cover that covers the fixed contact other than the fixed contact,
The contact storage case includes an insulating plate that supports the fixed contact,
A contact device according to claim 1, wherein each of the insulating covers has a protrusion that supports the movable contact while the connecting shaft is separated from the insulating plate. 前記突起部は、前記可動接触子を前記可動接触子の前記可動接点側とは反対側から支持することを特徴とする請求項１に記載の接点装置。 2. The contact device according to claim 1, wherein the protrusion supports the movable contact from a side of the movable contact opposite to the movable contact. 前記突起部は、前記可動接触子の長手方向と交差する方向に延伸していることを特徴とする請求項１又は２に記載の接点装置。 3. The contact device according to claim 1, wherein the protrusion extends in a direction crossing the longitudinal direction of the movable contact. 前記突起部は、前記可動接点よりも前記連結軸側に配置されていることを特徴とする請求項３に記載の接点装置。 4. The contact device according to claim 3, wherein the protrusion is arranged closer to the connecting shaft than the movable contact. 前記一対の固定接触子は、前記固定接点が設けられた第１導電部と、前記可動接触子の前記可動接点側とは反対側に配置された第２導電部と、前記可動接触子の長手方向の外側で前記第１導電部及び前記第２導電部に連結された第３導電部とを有することを特徴とする請求項１から４の何れか一項に記載の接点装置。 The pair of fixed contacts includes a first conductive portion provided with the fixed contact, a second conductive portion disposed on the opposite side of the movable contact from the movable contact, and a longitudinal direction of the movable contact. 5. A contact device according to any one of claims 1 to 4, comprising a third conductive portion coupled to said first conductive portion and said second conductive portion on the outside of the direction. 前記絶縁カバーは樹脂で形成され、
前記突起部は、前記絶縁カバーと一体成形で形成されていることを特徴とする請求項１から４の何れか一項に記載の接点装置。 The insulating cover is made of resin,
5. The contact device according to claim 1, wherein the protrusion is formed integrally with the insulating cover. 請求項１から６の何れか一項に記載の接点装置と、前記可動接触子を可動させる電磁石装置とを備えている電磁接触器。 An electromagnetic contactor comprising: the contact device according to any one of claims 1 to 6; and an electromagnet device that moves the movable contactor. 固定接点を有し、かつ突起部が設けられた絶縁カバーを有する一対の固定接触子が底部に配置された第１有底筒体と、一対の可動接点が長手方向の両側に設けられ、かつ連結軸が前記一対の可動接点の間を板厚方向に横切るようにして連結された可動接触子と、底部に前記連結軸の一端側が挿通される貫通孔を有する第２有底筒体と、を準備する工程と、
前記一対の固定接触子の前記固定接点に前記一対の可動接点が対向し、かつ前記連結軸の他端側が前記第１有底筒体の底部から離間するように前記絶縁カバーの各々の前記突起部に支持された状態で前記可動接触子を前記第１有底筒体内に配置する工程と、
前記可動接触子が前記絶縁カバーの各々の前記突起部に支持された状態で前記連結軸の一端側を前記第２有底筒体の前記貫通孔に挿通して前記第２有底筒体を前記第１有底筒体に組み付ける工程と、
を備えることを特徴とする接点装置の製造方法。 A first bottomed cylindrical body having a fixed contact and having a pair of fixed contacts having an insulating cover provided with a protrusion disposed at the bottom, and a pair of movable contacts provided on both sides in the longitudinal direction, and a movable contact in which a connecting shaft is connected so as to traverse between the pair of movable contacts in the plate thickness direction; a second bottomed cylindrical body having a through hole through which one end side of the connecting shaft is inserted in a bottom portion; a step of preparing
The protrusions of the insulating cover are arranged so that the pair of movable contacts face the fixed contacts of the pair of fixed contacts, and the other end side of the connecting shaft is separated from the bottom of the first bottomed cylinder. disposing the movable contact in the first bottomed cylindrical body while being supported by the portion;
One end side of the connecting shaft is inserted into the through hole of the second bottomed cylinder in a state where the movable contact is supported by each of the protrusions of the insulating cover, thereby opening the second bottomed cylinder. a step of assembling to the first bottomed cylindrical body;
A method of manufacturing a contact device, comprising: 前記突起部は、前記可動接触子を前記可動接触子の前記可動接点側とは反対側から支持することを特徴とする請求項８に記載の接点装置の製造方法。 9. The method of manufacturing a contact device according to claim 8, wherein the protrusion supports the movable contact from a side of the movable contact opposite to the movable contact. 前記突起部は、前記可動接触子の長手方向と交差する方向に延伸していることを特徴とする請求項８又は９に記載の接点装置の製造方法。 10. The method of manufacturing a contact device according to claim 8, wherein the protrusion extends in a direction crossing the longitudinal direction of the movable contact. 前記突起部は、前記可動接点よりも前記連結軸側に配置されていることを特徴とする請求項１０に記載の接点装置の製造方法。 11. The method of manufacturing a contact device according to claim 10, wherein the protrusion is arranged closer to the connecting shaft than the movable contact. 前記一対の固定接触子は、前記固定接点が設けられた第１導電部と、前記可動接触子の前記可動接点側とは反対側に配置された第２導電部と、前記可動接触子の長手方向の外側で前記第１導電部及び前記第２導電部に連結された第３導電部とを有することを特徴とする請求項８から１１の何れか一項に記載の接点装置の製造方法。 The pair of fixed contacts includes a first conductive portion provided with the fixed contact, a second conductive portion disposed on the opposite side of the movable contact from the movable contact, and a longitudinal direction of the movable contact. 12. The method of manufacturing a contact device according to claim 8, further comprising a third conductive portion coupled to the first conductive portion and the second conductive portion on the outside of the direction.
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Citations (3)

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Publication number Priority date Publication date Assignee Title
WO2007132773A1 (en) 2006-05-12 2007-11-22 Omron Corporation Electromagnetic relay
JP2012243593A (en) 2011-05-19 2012-12-10 Fuji Electric Fa Components & Systems Co Ltd Method for assembling arc-extinguishing chamber of electromagnetic contactor
US20160365209A1 (en) 2015-06-12 2016-12-15 Tyco Electronics Corporation Electrical relay device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007132773A1 (en) 2006-05-12 2007-11-22 Omron Corporation Electromagnetic relay
JP2012243593A (en) 2011-05-19 2012-12-10 Fuji Electric Fa Components & Systems Co Ltd Method for assembling arc-extinguishing chamber of electromagnetic contactor
US20160365209A1 (en) 2015-06-12 2016-12-15 Tyco Electronics Corporation Electrical relay device

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