JP6948627B2

JP6948627B2 - Electromagnetic relay and base

Info

Publication number: JP6948627B2
Application number: JP2020100394A
Authority: JP
Inventors: 浩司横山; 智史坂井
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2019-04-24
Filing date: 2020-06-09
Publication date: 2021-10-13
Anticipated expiration: 2035-04-13
Also published as: JP2020140972A

Description

本発明は、電磁継電器およびベースに関する。 The present invention relates to electromagnetic relays and bases.

従来、固定接点に可動接触子が接離する接点装置が知られている（例えば特許文献１参照）。特許文献１に記載された接点装置は、可動接触子を保持する保持体と、保持体に連結される可動軸とを備えている。 Conventionally, a contact device in which a movable contact is brought into contact with a fixed contact is known (see, for example, Patent Document 1). The contact device described in Patent Document 1 includes a holding body that holds a movable contactor, and a movable shaft that is connected to the holding body.

特開２０１２−２２９８２号公報Japanese Unexamined Patent Publication No. 2012-22982

ところで、特許文献１に記載された従来の接点装置は、接触子ホルダ（保持体）がベースの内面に接触することによって、接触子ホルダおよび可動接触子の回転を規制している。 By the way, in the conventional contact device described in Patent Document 1, the rotation of the contact holder and the movable contact is restricted by contacting the contact holder (holding body) with the inner surface of the base.

しかしながら、特許文献１に記載された従来の接点装置は、接触子ホルダおよび可動接触子が回転した状態では、可動接触子とベースの内面との間の距離が近くなり、遮断に必要なアークスペースが狭くなってしまうという問題があった。 However, in the conventional contact device described in Patent Document 1, when the contact holder and the movable contact are rotated, the distance between the movable contact and the inner surface of the base becomes short, and the arc space required for blocking becomes short. There was a problem that it became narrow.

本発明は上記の点に鑑みてなされた発明であり、本発明の目的は、簡単な構成でありながら、アークスペースを確保し、かつ、弧絡を抑制することができる電磁継電器およびベースを提供することにある。 The present invention has been made in view of the above points, and an object of the present invention is to provide an electromagnetic relay and a base capable of securing an arc space and suppressing an arc entanglement while having a simple configuration. To do.

本発明の一態様に係る電磁継電器は、固定端子部と、前記固定端子部と向かい合う可動接触子と、前記可動接触子を前記固定端子部と接離させる可動軸と、前記可動接触子と前記可動軸との間に配置されているばねと、を有する可動部と、ベースと、を備える。前記固定端子部は、第１固定端子と、第１方向に沿って前記第１固定端子に並んで設けられた第２固定端子と、を有する。前記可動軸は、前記第１方向に直交する第２方向に沿って延びている。前記可動接触子は、前記第１方向に沿う幅が前記第１方向および前記第２方向に直交する第３方向に沿う幅よりも長い。前記ベースは、前記第３方向において前記可動部と向かい合う第１内壁及び第２内壁を有する。前記電磁継電器は、前記第３方向において前記第１内壁から前記第２内壁へ向かって突出する第１突出部および第２突出部を更に備える。前記第１突出部と前記可動部との間および前記第２突出部と前記可動部との間には、間隙が形成されている。前記可動部は、前記可動軸回りに回転可能である。 The electromagnetic relay according to one aspect of the present invention includes a fixed terminal portion, a movable contact facing the fixed terminal portion, a movable shaft for bringing the movable contact into contact with and detaching from the fixed terminal portion, and the movable contact and the above. It comprises a movable portion having a spring disposed between the movable shaft and a base, and a base. The fixed terminal portion has a first fixed terminal and a second fixed terminal provided alongside the first fixed terminal along a first direction. The movable axis extends along a second direction orthogonal to the first direction. The movable contact has a width along the first direction longer than a width along the third direction orthogonal to the first direction and the second direction. The base has a first inner wall and a second inner wall facing the movable portion in the third direction. The electromagnetic relay further includes a first protruding portion and a second protruding portion that project from the first inner wall toward the second inner wall in the third direction. A gap is formed between the first protruding portion and the movable portion and between the second protruding portion and the movable portion. The movable portion can rotate around the movable axis.

本発明の一態様に係るベースは、固定接点および可動接点を収納するためのベースである。前記ベースは、下面が開口した中空箱型である。前記ベースは、第１方向に沿って並んで設けられている第１貫通孔および第２貫通孔を有し、前記第１方向と直交する第２方向において前記下面と対向している上面と、側面を構成する周壁と、を備える。前記上面および前記周壁は、セラミックから構成されている。前記周壁は、前記第１方向に沿って延びており、前記第１方向と前記第２方向とに直交する第３方向において互いに対向する一対の第１内壁と、前記第３方向において前記一対の第１内壁に繋がり、前記第１方向において互いに対向する一対の第２内壁と、前記一対の第１内壁のうち一方の第１内壁に位置し、前記第３方向に沿って突出する第１突出部および第２突出部と、前記一対の第１内壁のうち他方の第１内壁に位置し、前記第３方向に沿って突出する第３突出部および第４突出部と、を備える。前記第３突出部は、前記第１突出部と前記第３方向において対向している。前記第４突出部は、前記第２突出部と前記第３方向において対向している。前記第１突出部の先端と前記第２突出部の先端とは、空隙を介して離間している。前記第１突出部の先端と前記一対の第２内壁のうち一方の第２内壁とは、空隙を介して離間している。前記第２突出部の先端と前記一対の第２内壁のうち他方の第２内壁とは、空隙を介して離間している。前記第１貫通孔の中心は、前記第１突出部の先端よりも前記一対の第２内壁のうち前記一方の第２内壁に近く、前記第２突出部の先端よりも前記第１突出部の先端の近くに位置している。前記第２貫通孔の中心は、前記第２突出部の先端よりも前記一対の第２内壁のうち前記他方の第２内壁に近く、前記第１突出部の先端よりも前記第２突出部の先端の近くに位置している。前記第１突出部と前記第２突出部と前記第３突出部と前記第４突出部とは、前記セラミックで前記周壁と一体に形成されている。
The base according to one aspect of the present invention is a base for accommodating fixed contacts and movable contacts. The base is a hollow box type with an open lower surface. The base has a first through hole and a second through hole provided side by side along the first direction, and has an upper surface facing the lower surface in a second direction orthogonal to the first direction. It is provided with a peripheral wall that constitutes a side surface. The upper surface and the peripheral wall are made of ceramic. The peripheral wall extends along the first direction, and a pair of first inner walls facing each other in a third direction orthogonal to the first direction and the second direction, and a pair of inner walls facing each other in the third direction. A pair of second inner walls that are connected to the first inner wall and face each other in the first direction, and a first protrusion that is located on the first inner wall of one of the pair of first inner walls and projects along the third direction. It includes a portion and a second projecting portion, and a third projecting portion and a fourth projecting portion located on the other first inner wall of the pair of first inner walls and projecting along the third direction. The third protruding portion faces the first protruding portion in the third direction. The fourth protrusion faces the second protrusion in the third direction. The tip of the first protrusion and the tip of the second protrusion are separated from each other through a gap. The tip of the first protrusion and the second inner wall of one of the pair of second inner walls are separated from each other through a gap. The tip of the second protrusion and the other second inner wall of the pair of second inner walls are separated from each other through a gap. The center of the first through hole is closer to the second inner wall of one of the pair of second inner walls than the tip of the first protrusion, and is closer to the second inner wall of the first protrusion than the tip of the second protrusion. It is located near the tip. The center of the second through hole is closer to the other second inner wall of the pair of second inner walls than the tip of the second protrusion, and is closer to the second inner wall of the second protrusion than the tip of the first protrusion. It is located near the tip. The first protrusion, the second protrusion, the third protrusion, and the fourth protrusion are made of the ceramic and integrally formed with the peripheral wall.

本発明の一態様に係る電磁継電器は、前記ベースと、前記第１方向に沿って並んで設けられた一対の固定接点と、前記一対の固定接点を一端に有する一対の固定端子と、コイルを有する駆動装置と、前記一対の固定接点と対向するように配置された一対の可動接点を有する可動接触子と、前記第２方向に沿って延びており、前記駆動装置の通電状態に応じて、前記一対の可動接点を前記第２方向に沿って移動させて前記一対の可動接点を前記一対の固定接点に接離させるように配置された可動軸と、を備える。前記一対の固定接点と前記可動接触子とが、前記ベースに収納されている。前記一対の固定端子のうち一方の固定端子が、前記第１貫通孔に挿通されている。前記一対の固定端子のうち他方の固定端子が、前記第２貫通孔に挿通されている。 The electromagnetic relay according to one aspect of the present invention includes the base, a pair of fixed contacts provided side by side along the first direction, a pair of fixed terminals having the pair of fixed contacts at one end, and a coil. A drive device having a drive device, a movable contact element having a pair of movable contacts arranged so as to face the pair of fixed contacts, and a movable contact element having a pair of movable contacts, extending along the second direction, depending on the energized state of the drive device. A movable shaft is provided so as to move the pair of movable contacts along the second direction so as to bring the pair of movable contacts into contact with and separate from the pair of fixed contacts. The pair of fixed contacts and the movable contact are housed in the base. One of the fixed terminals of the pair of fixed terminals is inserted into the first through hole. The other fixed terminal of the pair of fixed terminals is inserted into the second through hole.

本発明では、アークスペースを確保し、かつ、弧絡を抑制することができる。 In the present invention, the arc space can be secured and the arc entanglement can be suppressed.

実施形態１に係る電磁継電器の図２のＡ−Ａ線の断面図である。FIG. 5 is a cross-sectional view taken along the line AA of FIG. 2 of the electromagnetic relay according to the first embodiment. 実施形態１に係る電磁継電器の外観斜視図である。It is external perspective view of the electromagnetic relay which concerns on Embodiment 1. FIG. 実施形態１に係る電磁継電器の図２のＢ−Ｂ線の断面図である。FIG. 2 is a cross-sectional view taken along the line BB of FIG. 2 of the electromagnetic relay according to the first embodiment. 実施形態１に係る電磁継電器の図２のＣ−Ｃ線の断面図である。FIG. 5 is a cross-sectional view taken along the line CC of FIG. 2 of the electromagnetic relay according to the first embodiment. 実施形態１に係る電磁継電器において可動接触子が回転している状態の断面図である。FIG. 5 is a cross-sectional view of a state in which a movable contactor is rotating in the electromagnetic relay according to the first embodiment. 実施形態１に係る電磁継電器において可動接触子が回転している状態の断面図である。FIG. 5 is a cross-sectional view of a state in which a movable contactor is rotating in the electromagnetic relay according to the first embodiment. 実施形態１に係る電磁継電器の要部の拡大図である。It is an enlarged view of the main part of the electromagnetic relay which concerns on Embodiment 1. FIG. 実施形態１の変形例に係る電磁継電器の断面図である。It is sectional drawing of the electromagnetic relay which concerns on the modification of Embodiment 1. FIG. 実施形態１の他の変形例に係る電磁継電器の断面図である。It is sectional drawing of the electromagnetic relay which concerns on other modification of Embodiment 1. FIG. 実施形態２に係る電磁継電器の要部の拡大図である。It is an enlarged view of the main part of the electromagnetic relay which concerns on Embodiment 2. FIG.

（実施形態１）
実施形態１に係る電磁継電器１は、図１〜３に示すように、接点装置２と、駆動装置３と、中空箱型のハウジング４とを備えている。ハウジング４には、接点装置２と駆動装置３とが収納されている。 (Embodiment 1)
As shown in FIGS. 1 to 3, the electromagnetic relay 1 according to the first embodiment includes a contact device 2, a drive device 3, and a hollow box-shaped housing 4. The contact device 2 and the drive device 3 are housed in the housing 4.

接点装置２は、一対の固定端子２１と、可動接触子２２と、接圧ばね２３と、ばね受け部２４と、可動軸２５と、調整部２６と、ヨーク２７と、接触子ホルダ２８と、ベース（ケース）５１と、連結体５２と、絶縁部材５３とを備えている。 The contact device 2 includes a pair of fixed terminals 21, a movable contactor 22, a pressure contact spring 23, a spring receiving portion 24, a movable shaft 25, an adjusting portion 26, a yoke 27, a contactor holder 28, and the like. It includes a base (case) 51, a connecting body 52, and an insulating member 53.

一対の固定端子２１の各々は、銅などの導電性材料によって略円柱状に形成されている。各固定端子２１の下端には、固定接点２１１が設けられている。そして、各固定端子２１は、ベース５１の貫通孔５１１に挿通されて設けられ、上端をベース５１の上面から突出させた状態でベース５１にろう付けによって接合されている。 Each of the pair of fixed terminals 21 is formed in a substantially columnar shape by a conductive material such as copper. A fixed contact 211 is provided at the lower end of each fixed terminal 21. Each of the fixed terminals 21 is inserted through a through hole 511 of the base 51 and is joined to the base 51 by brazing with the upper end protruding from the upper surface of the base 51.

一対の固定接点２１１は、一対の固定端子２１の下端に固着されている。一対の固定接点２１１は、第１の方向（図３の左右方向）に並んでいる。なお、各固定接点２１１は、固定端子２１と一体に形成されていてもよい。 The pair of fixed contacts 211 are fixed to the lower ends of the pair of fixed terminals 21. The pair of fixed contacts 211 are arranged in the first direction (left-right direction in FIG. 3). Each fixed contact 211 may be formed integrally with the fixed terminal 21.

可動接触子２２は、一対の固定接点２１１に接離する。より詳細には、可動接触子２２は、第１の方向（図３の左右方向）と直交する第２の方向（図３の上下方向）において一対の固定接点２１１に接離する。可動接触子２２は、左右方向（図３の左右方向）に長い平板状に形成され上面の左右両端側に可動接点２２１を有している。つまり、一対の可動接点２２１は、可動接触子２２の左右方向の両端部分である。一対の可動接点２２１は、一対の固定接点２１１に所定の間隔を空けて対向する位置に形成されている。また、可動接触子２２には、左右方向（図３の左右方向）の略中央部に嵌合するようにヨーク２７が設けられている。 The movable contact 22 is brought into contact with and separated from the pair of fixed contacts 211. More specifically, the movable contact 22 is brought into contact with and separated from the pair of fixed contacts 211 in a second direction (vertical direction in FIG. 3) orthogonal to the first direction (horizontal direction in FIG. 3). The movable contact 22 is formed in a flat plate shape that is long in the left-right direction (left-right direction in FIG. 3), and has movable contacts 221 on both left and right ends of the upper surface. That is, the pair of movable contacts 221 are both ends of the movable contact 22 in the left-right direction. The pair of movable contacts 221 are formed at positions facing the pair of fixed contacts 211 at predetermined intervals. Further, the movable contact 22 is provided with a yoke 27 so as to fit in a substantially central portion in the left-right direction (left-right direction in FIG. 3).

接圧ばね２３は、コイルばねから成り、伸縮方向を上下方向に向けた状態でばね受け部２４とヨーク２７との間に配置されている。接圧ばね２３の上端側内径部にヨーク２７の位置決め凸部２７１が嵌め込まれることによって、接圧ばね２３は、ヨーク２７および可動接触子２２に対して位置決めされている。 The pressure contact spring 23 is composed of a coil spring and is arranged between the spring receiving portion 24 and the yoke 27 in a state where the expansion / contraction direction is directed in the vertical direction. The pressure contact spring 23 is positioned with respect to the yoke 27 and the movable contact 22 by fitting the positioning convex portion 271 of the yoke 27 into the inner diameter portion on the upper end side of the pressure contact spring 23.

ばね受け部２４は、例えば樹脂などの電気的に絶縁性を有する材料で略矩形板状に形成されている。ばね受け部２４の基部２４１の上面の略中央には、略円板上の位置決め凸部２４２が形成されている。そして、接圧ばね２３の下端側内径部にばね受け部２４の位置決め凸部２４２が嵌め込まれることによって、ばね受け部２４は、接圧ばね２３に対して位置決めされている。 The spring receiving portion 24 is formed in a substantially rectangular plate shape with an electrically insulating material such as resin. A positioning convex portion 242 on a substantially disk is formed at substantially the center of the upper surface of the base portion 241 of the spring receiving portion 24. Then, the positioning convex portion 242 of the spring receiving portion 24 is fitted into the inner diameter portion on the lower end side of the pressure contact spring 23, so that the spring receiving portion 24 is positioned with respect to the pressure contact spring 23.

可動軸２５は、可動接触子２２が一対の固定接点２１１に接離するように接触子ホルダ２８を第２の方向に移動させる。言い換えると、可動軸２５は、可動接触子２２が一対の固定接点２１１に接離するように軸方向（図３の上下方向）に移動する。すなわち、可動軸２５は、接触子ホルダ２８に接続されて可動接触子２２が一対の固定接点２１１に接離するように第２の方向に移動する。可動軸２５は、上下方向に長い略丸棒状に形成されている。可動軸２５の下端には、駆動装置３の可動鉄心３４が接続されている。可動軸２５の上端は、ばね受け部２４に接続されている。可動軸２５は、固定鉄心３３の貫通孔３３１、復帰ばね３６および可動鉄心３４の貫通孔３４１に挿通された状態で、可動鉄心３４に固定される。 The movable shaft 25 moves the contact holder 28 in the second direction so that the movable contact 22 comes into contact with and separates from the pair of fixed contacts 211. In other words, the movable shaft 25 moves in the axial direction (vertical direction in FIG. 3) so that the movable contact 22 comes into contact with and separates from the pair of fixed contacts 211. That is, the movable shaft 25 is connected to the contact holder 28 and moves in the second direction so that the movable contact 22 comes into contact with and separates from the pair of fixed contacts 211. The movable shaft 25 is formed in a substantially round bar shape that is long in the vertical direction. A movable iron core 34 of the drive device 3 is connected to the lower end of the movable shaft 25. The upper end of the movable shaft 25 is connected to the spring receiving portion 24. The movable shaft 25 is fixed to the movable iron core 34 in a state of being inserted into the through hole 331 of the fixed iron core 33, the return spring 36, and the through hole 341 of the movable iron core 34.

調整部２６は、磁性体材料で例えば略矩形板状に形成されている。そして、調整部２６は、可動接触子２２の左右方向の略中央部の上面に載置され、接触子ホルダ２８に固定される。なお、調整部２６は、板状に形成されていることには限定されず、他の形状に形成されていてもよい。 The adjusting portion 26 is made of a magnetic material and is formed in a substantially rectangular plate shape, for example. Then, the adjusting portion 26 is placed on the upper surface of the substantially central portion of the movable contact 22 in the left-right direction and fixed to the contact holder 28. The adjusting portion 26 is not limited to being formed in a plate shape, and may be formed in another shape.

ヨーク２７は、磁性体材料からなり、左右方向から見て上方が開口した断面略Ｕ字状に形成されている。そして、ヨーク２７は、可動接触子２２の略中央部を前後方向から挟持するように、可動接触子２２の略中央部の下方側に配置されている。また、ヨーク２７の下面の略中央には、略円板状の位置決め凸部２７１が形成されている。 The yoke 27 is made of a magnetic material and is formed in a substantially U-shaped cross section with an upper opening when viewed from the left-right direction. The yoke 27 is arranged below the substantially central portion of the movable contact 22 so as to sandwich the substantially central portion of the movable contact 22 from the front-rear direction. Further, a substantially disk-shaped positioning convex portion 271 is formed at substantially the center of the lower surface of the yoke 27.

接触子ホルダ２８は、図６に示すように、可動接触子２２を保持する。接触子ホルダ２８は、一対の保持部２８１を備えている。各保持部２８１は、底部２８２と、側部２８３とを備えている。底部２８２および側部２８３は、非磁性体材料を折り曲げ加工することによって形成されている。そして、一対の保持部２８１は、互いに前後方向に離間した状態でばね受け部２４と一体成形されている。底部２８２および側部２８３と接圧ばね２３との間には、ばね受け部２４が介在している。すなわち、ばね受け部２４は、底部２８２と接圧ばね２３とを電気的に絶縁している。 The contact holder 28 holds the movable contact 22 as shown in FIG. The contact holder 28 includes a pair of holding portions 281. Each holding portion 281 includes a bottom portion 282 and a side portion 283. The bottom portion 282 and the side portion 283 are formed by bending a non-magnetic material. The pair of holding portions 281 are integrally molded with the spring receiving portion 24 in a state of being separated from each other in the front-rear direction. A spring receiving portion 24 is interposed between the bottom portion 282 and the side portion 283 and the pressure contact spring 23. That is, the spring receiving portion 24 electrically insulates the bottom portion 282 and the pressure contact spring 23.

一対の底部２８２は、調整部２６とで可動接触子２２、ヨーク２７および接圧ばね２３を上下方向に挟持する。したがって、可動接触子２２は、接圧ばね２３によって上方へ押圧され、可動接触子２２の上面が調整部２６に当接することによって、固定接点２１１側への移動が規制される。側部２８３は、底部２８２の端部から上方向に延びて設けられている。一対の側部２８３は、前後方向（図６の左右方向）に対向している。各側部２８３には、可動接触子２２およびヨーク２７が摺接する。各側部２８３が調整部２６に当接することによって、一対の側部２８３は、調整部２６を前後方向に挟持している。各底部２８２は、例えば板状に形成されている。ただし、各底部２８２は、板状に形成されていることには限定されず、他の形状に形成されていてもよい。また、各側部２８３は、例えば板状に形成されている。ただし、各側部２８３は、板状に形成されていることには限定されず、他の形状に形成されていてもよい。 The pair of bottom portions 282 sandwich the movable contactor 22, the yoke 27, and the pressure contact spring 23 in the vertical direction with the adjusting portion 26. Therefore, the movable contact 22 is pressed upward by the pressure contact spring 23, and the upper surface of the movable contact 22 comes into contact with the adjusting portion 26, so that the movement toward the fixed contact 211 side is restricted. The side portion 283 is provided so as to extend upward from the end portion of the bottom portion 282. The pair of side portions 283 face each other in the front-rear direction (left-right direction in FIG. 6). A movable contact 22 and a yoke 27 are in sliding contact with each side portion 283. When each side portion 283 comes into contact with the adjusting portion 26, the pair of side portions 283 sandwich the adjusting portion 26 in the front-rear direction. Each bottom 282 is formed in a plate shape, for example. However, each bottom 282 is not limited to being formed in a plate shape, and may be formed in another shape. Further, each side portion 283 is formed in a plate shape, for example. However, each side portion 283 is not limited to being formed in a plate shape, and may be formed in another shape.

可動接触子２２の上方に設けられている調整部２６および可動接触子２２の下方に設けられているヨーク２７は、磁性体材料で形成され、接触子ホルダ２８は、非磁性体材料で形成されている。これにより、固定接点２１１と可動接点２２１とが接触して可動接触子２２に電流が流れた際に、可動接触子２２の周囲に可動接触子２２を中心として調整部２６およびヨーク２７を通る磁束が形成される。そして、調整部２６とヨーク２７との間に磁気吸引力が働き、この磁気吸引力によって固定接点２１１と可動接点２２１との間に発生する電磁反発力を抑制し、固定接点２１１と可動接点２２１との間における接圧の低下を抑制する。 The adjusting portion 26 provided above the movable contact 22 and the yoke 27 provided below the movable contact 22 are made of a magnetic material, and the contact holder 28 is made of a non-magnetic material. ing. As a result, when the fixed contact 211 and the movable contact 221 come into contact with each other and a current flows through the movable contact 22, the magnetic flux passing through the adjusting portion 26 and the yoke 27 around the movable contact 22 centering on the movable contact 22. Is formed. Then, a magnetic attraction force acts between the adjusting unit 26 and the yoke 27, and the magnetic attraction force suppresses the electromagnetic repulsive force generated between the fixed contact 211 and the movable contact 221 to suppress the electromagnetic repulsive force generated between the fixed contact 211 and the movable contact 221. Suppresses the decrease in contact pressure between and.

ベース５１は、図３に示すように、セラミックなどの耐熱性材料から下面が開口した中空箱型に形成されている。ベース５１は、一対の固定接点２１１、可動接触子２２および接触子ホルダ２８を収納している。ベース５１の上面には、左右方向に並ぶように２つの貫通孔５１１が形成されている。 As shown in FIG. 3, the base 51 is formed in a hollow box shape having an open lower surface from a heat-resistant material such as ceramic. The base 51 houses a pair of fixed contacts 211, a movable contact 22 and a contact holder 28. Two through holes 511 are formed on the upper surface of the base 51 so as to be arranged in the left-right direction.

連結体５２は、第１端がベース５１の開口周縁にろう付けによって接合されている。そして、連結体５２の第２端は、駆動装置３の継鉄３５のうちの第１の継鉄板３５１とろう付けによって接合されている。 The first end of the connecting body 52 is joined to the opening peripheral edge of the base 51 by brazing. The second end of the connecting body 52 is joined to the first joint iron plate 351 of the joint iron 35 of the drive device 3 by brazing.

絶縁部材５３は、底面部５３１と、突出部５３２とを備えている。底面部５３１の略中央には、可動軸２５が挿通される挿入孔５３３が形成されている。絶縁部材５３は、セラミックや合成樹脂などの絶縁性材料から上面が開口した略中空直方体状に形成され、周壁の上端側がベース５１の周壁の内面に当接する。これにより、絶縁部材５３は、ベース５１の開口部において、固定接点２１１と可動接点２２１との間で発生するアークを、ベース５１と連結体５２との接合部から絶縁する。 The insulating member 53 includes a bottom surface portion 531 and a protruding portion 532. An insertion hole 533 through which the movable shaft 25 is inserted is formed at substantially the center of the bottom surface portion 531. The insulating member 53 is formed of a substantially hollow rectangular parallelepiped having an open upper surface from an insulating material such as ceramic or synthetic resin, and the upper end side of the peripheral wall abuts on the inner surface of the peripheral wall of the base 51. As a result, the insulating member 53 insulates the arc generated between the fixed contact 211 and the movable contact 221 from the joint portion between the base 51 and the connecting body 52 at the opening of the base 51.

ところで、本実施形態の接点装置２では、ばね受け部２４は、可動接触子２２において一対の固定接点２１１側とは反対側に配置されている。そして、ばね受け部２４は、基部２４１と、位置決め凸部２４２と、突出部２４３と、隔壁２４４とを備えている。隔壁２４４は、可動軸２５の周囲に設けられている。より詳細には、隔壁２４４は、例えば円筒状に形成されており、可動軸２５の軸方向に沿って基部２４１から絶縁部材５３に向かって延びて設けられている。 By the way, in the contact device 2 of the present embodiment, the spring receiving portion 24 is arranged on the movable contact 22 on the side opposite to the pair of fixed contacts 211 side. The spring receiving portion 24 includes a base portion 241, a positioning convex portion 242, a protruding portion 243, and a partition wall 244. The partition wall 244 is provided around the movable shaft 25. More specifically, the partition wall 244 is formed in a cylindrical shape, for example, and is provided extending from the base portion 241 toward the insulating member 53 along the axial direction of the movable shaft 25.

上記のような隔壁２４４が設けられていることによって、固定接点２１１と可動接触子２２との接離によって発生した異物が挿入孔５３３に侵入することを低減できる。 By providing the partition wall 244 as described above, it is possible to reduce the invasion of foreign matter generated by the contact and separation between the fixed contact 211 and the movable contact 22 into the insertion hole 533.

ところで、本実施形態の接点装置２は、図１に示すように、複数（図１では４個）の突出部５１２〜５１５を備えている。複数の突出部５１２〜５１５の各々は、第１の方向（図１の左右方向）および第２の方向（図１の紙面と直交する方向）のいずれとも直交する第３の方向（図１の上下方向）において、ベース５１のうちの接触子ホルダ２８と対向する位置から第３の方向に突出している。 By the way, as shown in FIG. 1, the contact device 2 of the present embodiment includes a plurality of (four in FIG. 1) projecting portions 521 to 515. Each of the plurality of protrusions 521 to 515 has a third direction (in FIG. 1) that is orthogonal to both the first direction (horizontal direction in FIG. 1) and the second direction (direction orthogonal to the paper surface in FIG. 1). In the vertical direction), it protrudes in the third direction from the position of the base 51 facing the contactor holder 28.

また、接触子ホルダ２８は、図６に示すように、第３の方向（図６の左右方向）において、接触子ホルダ２８の下部領域の幅が接触子ホルダ２８の上部領域の幅よりも大きい。より具体的には、接触子ホルダ２８において、一対の保持部２８１は、複数の突出部５１２〜５１５と対向する位置に複数の凸領域２８４〜２８７を有している。 Further, as shown in FIG. 6, in the contact holder 28, the width of the lower region of the contact holder 28 is larger than the width of the upper region of the contact holder 28 in the third direction (left-right direction in FIG. 6). .. More specifically, in the contact holder 28, the pair of holding portions 281 have a plurality of convex regions 284 to 287 at positions facing the plurality of protruding portions 521 to 515.

さらに、複数の突出部５１２〜５１５の各々は曲面である。一方、接触子ホルダ２８のうちの突出部５１２〜５１５と対向する面は平面である。これにより、曲面と平面との安定的な接触を実現することができる。 Further, each of the plurality of protrusions 512 to 515 is a curved surface. On the other hand, the surface of the contact holder 28 facing the protruding portions 521 to 515 is a flat surface. As a result, stable contact between the curved surface and the flat surface can be realized.

続いて、本実施形態に係る接点装置２の動作について図３を参照しながら説明する。まず、駆動装置３によって可動軸２５が上方へ変位すると、可動軸２５の変位に伴って可動軸２５に接続されたばね受け部２４および接触子ホルダ２８が上方へ変位する。ばね受け部２４および接触子ホルダ２８の変位に伴って、可動接触子２２が上方へ移動する。そして、可動接触子２２が、一対の固定接点２１１に当接して接点間が導通する。 Subsequently, the operation of the contact device 2 according to the present embodiment will be described with reference to FIG. First, when the movable shaft 25 is displaced upward by the drive device 3, the spring receiving portion 24 and the contactor holder 28 connected to the movable shaft 25 are displaced upward along with the displacement of the movable shaft 25. The movable contact 22 moves upward as the spring receiving portion 24 and the contact holder 28 are displaced. Then, the movable contact 22 comes into contact with the pair of fixed contacts 211, and the contacts become conductive.

このような接点装置２の動作において、可動接触子２２および接触子ホルダ２８が可動軸２５を中心に時計回りに回転した場合、図５に示すように、可動接触子２２および接触子ホルダ２８がベース５１の内面に当接せずに、凸領域２８４が突出部５１２に当接し、凸領域２８７が突出部５１５に当接する。一方、可動接触子２２および接触子ホルダ２８が可動軸２５を中心に反時計回りに回転した場合、可動接触子２２および接触子ホルダ２８がベース５１の内面に当接せずに、凸領域２８５が突出部５１３に当接し、凸領域２８６が突出部５１４に当接する。 In such an operation of the contact device 2, when the movable contact 22 and the contact holder 28 rotate clockwise around the movable shaft 25, as shown in FIG. 5, the movable contact 22 and the contact holder 28 move. The convex region 284 abuts on the protruding portion 512 and the convex region 287 abuts on the protruding portion 515 without abutting on the inner surface of the base 51. On the other hand, when the movable contact 22 and the contact holder 28 rotate counterclockwise about the movable shaft 25, the movable contact 22 and the contact holder 28 do not abut on the inner surface of the base 51, and the convex region 285. Abuts on the protrusion 513, and the convex region 286 abuts on the protrusion 514.

次に、駆動装置３について図３を参照しながら詳細を説明する。 Next, the driving device 3 will be described in detail with reference to FIG.

駆動装置３は、電磁石ブロックであり、図３に示すように、可動接触子２２が一対の固定接点２１１に接離するように可動軸２５を駆動する。 The drive device 3 is an electromagnet block, and as shown in FIG. 3, drives the movable shaft 25 so that the movable contact 22 comes into contact with and separates from the pair of fixed contacts 211.

駆動装置３は、励磁巻線３１と、コイルボビン３２と、固定鉄心３３と、可動鉄心３４と、継鉄３５と、復帰ばね３６と、円筒部材３７と、ブッシュ３８とを備えている。また、駆動装置３は、励磁巻線３１の両端がそれぞれ接続される一対のコイル端子を備えている。 The drive device 3 includes an exciting winding 31, a coil bobbin 32, a fixed iron core 33, a movable iron core 34, a joint iron 35, a return spring 36, a cylindrical member 37, and a bush 38. Further, the drive device 3 includes a pair of coil terminals to which both ends of the exciting winding 31 are connected to each other.

コイルボビン３２は、樹脂材料によって上端および下端に鍔部３２１，３２２が形成された略円筒状に形成され、鍔部３２１，３２２間の円筒部３２３に励磁巻線３１が巻回されている。また、円筒部３２３の下端側の内径は、上端側の内径よりも拡径されている。 The coil bobbin 32 is formed in a substantially cylindrical shape in which flange portions 321 and 322 are formed at the upper and lower ends by a resin material, and an exciting winding 31 is wound around a cylindrical portion 323 between the collar portions 321 and 322. Further, the inner diameter of the cylindrical portion 323 on the lower end side is larger than the inner diameter on the upper end side.

励磁巻線３１は、コイルボビン３２の鍔部３２１に設けられる一対の端子部に端部が各々接続され、端子部に接続されるリード線を介して一対のコイル端子とそれぞれ接続されている。各コイル端子は、銅などの導電性材料から形成され、半田などによってリード線と接続されている。 The end of the exciting winding 31 is connected to a pair of terminal portions provided on the flange portion 321 of the coil bobbin 32, and each of the exciting winding 31 is connected to the pair of coil terminals via a lead wire connected to the terminal portion. Each coil terminal is formed of a conductive material such as copper, and is connected to a lead wire by solder or the like.

固定鉄心３３は、磁性材料によって略円柱状に形成されており、コイルボビン３２内に配置されて固定されている。より詳細には、固定鉄心３３は、コイルボビン３２の円筒部３２３に収納されている円筒部材３７内に設けられている。 The fixed iron core 33 is formed in a substantially columnar shape by a magnetic material, and is arranged and fixed in the coil bobbin 32. More specifically, the fixed iron core 33 is provided in the cylindrical member 37 housed in the cylindrical portion 323 of the coil bobbin 32.

可動鉄心３４は、磁性材料によって略円筒状に形成されており、軸方向において固定鉄心３３と対向するようにコイルボビン３２内に配置されている。より詳細には、可動鉄心３４は、円筒部材３７内に設けられている。可動鉄心３４は、可動軸２５と固定され、励磁巻線３１への通電に応じて上下方向に移動する。より詳細には、励磁巻線３１が通電されると、可動鉄心３４は上方向に移動する。一方、励磁巻線３１への通電が遮断されると、可動鉄心３４は下方向に移動する。 The movable iron core 34 is formed in a substantially cylindrical shape by a magnetic material, and is arranged in the coil bobbin 32 so as to face the fixed iron core 33 in the axial direction. More specifically, the movable iron core 34 is provided in the cylindrical member 37. The movable iron core 34 is fixed to the movable shaft 25 and moves in the vertical direction in response to the energization of the exciting winding 31. More specifically, when the exciting winding 31 is energized, the movable iron core 34 moves upward. On the other hand, when the energization of the exciting winding 31 is cut off, the movable iron core 34 moves downward.

継鉄３５は、第１の継鉄板３５１と、第２の継鉄板３５２と、一対の第３の継鉄板３５３とを備えている。第１の継鉄板３５１は、コイルボビン３２の上端側に設けられている。第２の継鉄板３５２は、コイルボビン３２の下端側に設けられている。一対の第３の継鉄板３５３は、第２の継鉄板３５２の左右両端から第１の継鉄板３５１側へ延びて設けられている。第１の継鉄板３５１は、略矩形板状に形成されている。第１の継鉄板３５１の上面側略中央には、挿通孔３５４が形成されている。挿通孔３５４には、固定鉄心３３の上端部が挿通されている。 The joint iron 35 includes a first joint iron plate 351 and a second joint iron plate 352, and a pair of third joint iron plates 353. The first joint iron plate 351 is provided on the upper end side of the coil bobbin 32. The second joint iron plate 352 is provided on the lower end side of the coil bobbin 32. The pair of third joint iron plates 353 are provided so as to extend from the left and right ends of the second joint iron plate 352 toward the first joint iron plate 351 side. The first joint iron plate 351 is formed in a substantially rectangular plate shape. An insertion hole 354 is formed in the substantially center of the upper surface side of the first joint iron plate 351. The upper end of the fixed iron core 33 is inserted into the insertion hole 354.

復帰ばね３６は、固定鉄心３３の貫通孔３３１の下部および可動鉄心３４の貫通孔３４１の上部に挿入されている。復帰ばね３６は、固定鉄心３３と可動鉄心３４との間に圧縮状態で設けられており、可動鉄心３４を下方へ弾性付勢する。 The return spring 36 is inserted into the lower part of the through hole 331 of the fixed iron core 33 and the upper part of the through hole 341 of the movable iron core 34. The return spring 36 is provided between the fixed iron core 33 and the movable iron core 34 in a compressed state, and elastically biases the movable iron core 34 downward.

円筒部材３７は、有底円筒状に形成されており、コイルボビン３２の円筒部３２３に収納されている。円筒部材３７の上端には鍔部３７１が形成されている。鍔部３７１は、コイルボビン３２の鍔部３２１と第１の継鉄板３５１との間に位置する。ここで、円筒部材３７の円筒部３７２内の下端側には、可動鉄心３４が設けられている。さらに、円筒部３７２内には、固定鉄心３３が設けられている。 The cylindrical member 37 is formed in a bottomed cylindrical shape and is housed in the cylindrical portion 323 of the coil bobbin 32. A collar portion 371 is formed at the upper end of the cylindrical member 37. The flange portion 371 is located between the flange portion 321 of the coil bobbin 32 and the first joint iron plate 351. Here, a movable iron core 34 is provided on the lower end side of the cylindrical portion 372 of the cylindrical member 37. Further, a fixed iron core 33 is provided in the cylindrical portion 372.

ブッシュ３８は、磁性材料によって円筒状に形成されている。ブッシュ３８は、コイルボビン３２における下端側の内周面と円筒部材３７の外周面との間に形成される隙間部分に嵌合されている。ブッシュ３８は、第１〜３の継鉄板３５１〜３５３と固定鉄心３３と可動鉄心３４とともに磁気回路を形成している。 The bush 38 is formed in a cylindrical shape by a magnetic material. The bush 38 is fitted in a gap portion formed between the inner peripheral surface on the lower end side of the coil bobbin 32 and the outer peripheral surface of the cylindrical member 37. The bush 38 forms a magnetic circuit together with the first to third joint iron plates 351 to 353, the fixed iron core 33, and the movable iron core 34.

次に、ハウジング４について図２，３を参照しながら詳細を説明する。 Next, the details of the housing 4 will be described with reference to FIGS. 2 and 3.

ハウジング４は、樹脂材料によって略矩形箱状に形成されており、上面が開口した中空箱型のハウジング本体４１と、ハウジング本体４１の開口に覆設する中空箱型のカバー４２とから構成されている。 The housing 4 is formed of a resin material in a substantially rectangular box shape, and is composed of a hollow box-shaped housing body 41 having an open upper surface and a hollow box-shaped cover 42 covering the opening of the housing body 41. There is.

ハウジング本体４１は、図２に示すように、左右側壁の前端に、電磁継電器１を取付面にねじ止めによって固定する際に用いられる挿通孔が形成された一対の突部４１１が設けられている。また、図３に示すように、ハウジング本体４１の上端側の開口周縁には段部４１２が形成されており、上端は下端側に比べて内径が大きくなっている。 As shown in FIG. 2, the housing main body 41 is provided with a pair of protrusions 411 having insertion holes formed at the front ends of the left and right side walls for fixing the electromagnetic relay 1 to the mounting surface by screwing. .. Further, as shown in FIG. 3, a step portion 412 is formed on the peripheral edge of the opening on the upper end side of the housing main body 41, and the upper end has an inner diameter larger than that on the lower end side.

カバー４２は、下面が開口した中空箱型に形成されている。カバー４２の上面部４２１には、上面部４２１を左右に略２分割する仕切り部４２２が形成されている。仕切り部４２２によって２分割された上面部４２１には、それぞれ固定端子２１が挿通する一対の挿通孔４２３が形成されている。 The cover 42 is formed in a hollow box shape with an open lower surface. The upper surface portion 421 of the cover 42 is formed with a partition portion 422 that substantially divides the upper surface portion 421 into two left and right. A pair of insertion holes 423 through which the fixed terminals 21 are inserted are formed in the upper surface portion 421 divided into two by the partition portion 422.

また、ハウジング４に接点装置２および駆動装置３が収納される際には、継鉄３５の第２の継鉄板３５２とハウジング本体４１の底面部４１３との間に下側クッションゴム４３が介装される。そして、ベース５１とカバー４２との間には、固定端子２１が挿通する挿通孔４４１が形成された上側クッションゴム４４が介装されている。 Further, when the contact device 2 and the drive device 3 are housed in the housing 4, a lower cushion rubber 43 is interposed between the second joint iron plate 352 of the joint iron 35 and the bottom surface portion 413 of the housing main body 41. Will be done. An upper cushion rubber 44 having an insertion hole 441 through which the fixed terminal 21 is inserted is interposed between the base 51 and the cover 42.

上記構成からなる電磁継電器１は、復帰ばね３６の付勢力によって可動鉄心３４が下方へ摺動し、それに伴って可動軸２５も下方へ移動する。これにより、可動接触子２２は、調整部２６によって下方へ押圧されると調整部２６とともに下方へ移動する。そのため、初期状態では可動接点２２１が固定接点２１１と離間している。 In the electromagnetic relay 1 having the above configuration, the movable iron core 34 slides downward due to the urging force of the return spring 36, and the movable shaft 25 also moves downward accordingly. As a result, when the movable contactor 22 is pressed downward by the adjusting portion 26, the movable contactor 22 moves downward together with the adjusting portion 26. Therefore, in the initial state, the movable contact 221 is separated from the fixed contact 211.

そして、励磁巻線３１が通電され、可動鉄心３４が固定鉄心３３に吸引されて上方へ摺動すると、可動鉄心３４に連結された可動軸２５も連動して上方へ移動する。これにより、可動軸２５に接続されたばね受け部２４（接触子ホルダ２８）が固定接点２１１側へ移動し、接触子ホルダ２８の上記移動に伴って可動接触子２２も上方へ移動する。そして、可動接点２２１が固定接点２１１に当接して固定接点２１１と可動接点２２１とが導通する。 Then, when the exciting winding 31 is energized and the movable iron core 34 is attracted to the fixed iron core 33 and slides upward, the movable shaft 25 connected to the movable iron core 34 also moves upward in conjunction with it. As a result, the spring receiving portion 24 (contactor holder 28) connected to the movable shaft 25 moves toward the fixed contact 211 side, and the movable contactor 22 also moves upward with the movement of the contactor holder 28. Then, the movable contact 221 abuts on the fixed contact 211, and the fixed contact 211 and the movable contact 221 conduct with each other.

また、励磁巻線３１への通電がオフされると、復帰ばね３６の付勢力によって可動鉄心３４が下方へ摺動し、それに伴って可動軸２５も下方へ向かって移動する。これにより、ばね受け部２４（接触子ホルダ２８）も下方へ移動し、接触子ホルダ２８の上記移動に伴って可動接触子２２も下方へ移動するので、固定接点２１１と可動接点２２１とが離間する。 Further, when the energization of the exciting winding 31 is turned off, the movable iron core 34 slides downward due to the urging force of the return spring 36, and the movable shaft 25 also moves downward accordingly. As a result, the spring receiving portion 24 (contactor holder 28) also moves downward, and the movable contactor 22 also moves downward with the movement of the contactor holder 28, so that the fixed contact 211 and the movable contact 221 are separated from each other. do.

なお、本実施形態の電磁継電器１の接点装置２では、一対の可動接点２２１は、可動接触子２２の一部であって、可動接触子２２と一体に設けられているが、本実施形態の変形例として、一対の可動接点は、可動接触子２２とは別体に設けられていてもよい。このような接点装置２においても、可動軸２５の移動によって、可動接触子２２とは別体に設けられた可動接点が可動接触子２２と一体に移動し、可動接点が固定接点２１１に接離する。 In the contact device 2 of the electromagnetic relay 1 of the present embodiment, the pair of movable contacts 221 are a part of the movable contact 22 and are provided integrally with the movable contact 22. As a modification, the pair of movable contacts may be provided separately from the movable contacts 22. Even in such a contact device 2, due to the movement of the movable shaft 25, the movable contact provided separately from the movable contact 22 moves integrally with the movable contact 22, and the movable contact is brought into contact with and separated from the fixed contact 211. do.

以上説明した本実施形態に係る接点装置２では、可動接触子２２および接触子ホルダ２８が可動軸２５の周りに回転した場合に、接触子ホルダ２８が突出部５１２〜５１５に接触する。これにより、可動接触子２２が回転規制された状態であっても、ベース５１内において可動接触子２２とベース５１との間に十分な空間を確保することができる。その結果、一対の固定接点２１１と可動接触子２２との間に発生するアークを延ばすためのアークスペースを確保することができ、弧絡を抑制することができる。 In the contact device 2 according to the present embodiment described above, when the movable contact 22 and the contact holder 28 rotate around the movable shaft 25, the contact holder 28 comes into contact with the protrusions 521 to 515. As a result, even when the movable contact 22 is restricted in rotation, a sufficient space can be secured between the movable contact 22 and the base 51 in the base 51. As a result, it is possible to secure an arc space for extending the arc generated between the pair of fixed contacts 211 and the movable contact 22, and it is possible to suppress the arc entanglement.

本実施形態に係る接点装置２では、可動接触子２２および接触子ホルダ２８が可動軸２５の周りに回転した場合に、接触子ホルダ２８が突出部５１２〜５１５に接触する。これにより、可動接触子２２が回転規制された状態であっても、ベース５１内の上部領域において可動接触子２２とベース５１との間に十分な空間を確保することができるので、アークスペースを十分に確保することができ、弧絡をより抑制することができる。特に、ベース５１が下部で開口している場合、形状精度の高いベース入口部（下部）で回転規制することができるので、回転規制の精度を向上させることができる。 In the contact device 2 according to the present embodiment, when the movable contact 22 and the contact holder 28 rotate around the movable shaft 25, the contact holder 28 comes into contact with the protrusions 521 to 515. As a result, even when the movable contact 22 is restricted in rotation, a sufficient space can be secured between the movable contact 22 and the base 51 in the upper region in the base 51, so that an arc space can be provided. It can be sufficiently secured and the arc entanglement can be further suppressed. In particular, when the base 51 is open at the lower part, the rotation can be restricted at the base inlet portion (lower part) having high shape accuracy, so that the accuracy of the rotation regulation can be improved.

本実施形態に係る接点装置２では、曲面と平面との安定的な接触を実現することができるので、回転規制時のかじ込みを防止することができる。特に、ベース５１がセラミックである場合、セラミックが欠けるのを防止することができる。 In the contact device 2 according to the present embodiment, stable contact between the curved surface and the flat surface can be realized, so that galling at the time of rotation regulation can be prevented. In particular, when the base 51 is ceramic, it is possible to prevent the ceramic from being chipped.

本実施形態に係る接点装置２では、点接触で回転規制を行うことができるので、回転規制の精度を向上させることができる。特に、ベース５１が下部で開口している場合、形状精度の高いベース入口部（下部）で回転規制することができるので、回転規制の精度を向上させることができる。 In the contact device 2 according to the present embodiment, rotation regulation can be performed by point contact, so that the accuracy of rotation regulation can be improved. In particular, when the base 51 is open at the lower part, the rotation can be restricted at the base inlet portion (lower part) having high shape accuracy, so that the accuracy of the rotation regulation can be improved.

なお、本実施形態では、接点装置２は、第３の方向に対向するベース５１の内面の両方に、第１の方向に並んでベース５１に複数の突出部５１２〜５１５を備えているのに対し、本実施形態の変形例として、接点装置２は、図８に示すように、第３の方向に対向するベース５１の片方の内面にのみ複数の突出部５１２，５１３を備えていてもよい。 In the present embodiment, the contact device 2 is provided with a plurality of protrusions 521 to 515 on the base 51 arranged in the first direction on both inner surfaces of the base 51 facing the third direction. On the other hand, as a modification of the present embodiment, as shown in FIG. 8, the contact device 2 may be provided with a plurality of protrusions 512 and 513 only on one inner surface of the base 51 facing in the third direction. ..

本変形例に係る接点装置２では、可動接触子２２および接触子ホルダ２８が可動軸２５の周りにどちらに回転しても、ベース５１内において可動接触子２２とベース５１との間に十分な空間を確保することができる。これにより、可動接触子２２がどちらに回転しても、アークスペースを確保することができ、弧絡を抑制することができる。 In the contact device 2 according to this modification, whichever direction the movable contact 22 and the contact holder 28 rotate around the movable shaft 25, a sufficient space between the movable contact 22 and the base 51 is sufficient in the base 51. Space can be secured. As a result, the arc space can be secured and the arc entanglement can be suppressed regardless of which direction the movable contact 22 rotates.

また、本実施形態の変形例として、接点装置２は、図９に示すように、ベース５１内のうち第３の方向において向かい合う一対の内面に一対の突出部５１３，５１５のみを備えていてもよい。すなわち、接点装置２は、ベース５１の各内面に１個ずつの突出部５１３，５１５を備えていてもよい。 Further, as a modification of the present embodiment, as shown in FIG. 9, even if the contact device 2 includes only a pair of protrusions 513 and 515 on a pair of inner surfaces facing each other in the third direction in the base 51. good. That is, the contact device 2 may be provided with one protruding portion 513,515 on each inner surface of the base 51.

（実施形態２）
実施形態２に係る接点装置２は、図１０に示すように、突出部５１２〜５１５に樹脂部材２９が当接する点で、実施形態１に係る接点装置２（図３参照）と相違する。なお、実施形態１の電磁継電器１（図３参照）と同様の構成要素については、同一の符号を付して説明を省略する。 (Embodiment 2)
As shown in FIG. 10, the contact device 2 according to the second embodiment is different from the contact device 2 (see FIG. 3) according to the first embodiment in that the resin member 29 comes into contact with the protrusions 521 to 515. The same components as those of the electromagnetic relay 1 (see FIG. 3) of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

本実施形態の接触子ホルダ２８は、複数の樹脂部材２９を備えている。複数の樹脂部材２９は、それぞれ複数の突出部５１２〜５１５に当接する。各樹脂部材２９は、接触子ホルダ２８の金属部分との同時成形によって作製される。なお、実施形態１の接触子ホルダ２８（図６参照）と同様の機能については説明を省略する。 The contactor holder 28 of the present embodiment includes a plurality of resin members 29. Each of the plurality of resin members 29 comes into contact with the plurality of protrusions 521 to 515. Each resin member 29 is manufactured by simultaneous molding with the metal portion of the contact holder 28. The same function as the contact holder 28 (see FIG. 6) of the first embodiment will not be described.

以上説明した本実施形態に係る接点装置２では、突出部５１２〜５１５に樹脂部材２９が当接することによって、金属の露出が少なくなり、アークが弧絡する可能性を低減させることができ、弧絡を抑制することができる。 In the contact device 2 according to the present embodiment described above, when the resin member 29 comes into contact with the protrusions 512 to 515, the exposure of the metal is reduced, the possibility of arc entanglement can be reduced, and the arc can be reduced. Entanglement can be suppressed.

なお、各樹脂部材２９は、接触子ホルダ２８の金属部分と同時成形ではなく、接触子ホルダ２８の金属部分とは別部材であってもよい。この場合、各樹脂部材２９は、例えば、接触子ホルダ２８の金属部分に貼り付けられる。 It should be noted that each resin member 29 may not be simultaneously molded with the metal portion of the contact holder 28, but may be a separate member from the metal portion of the contact holder 28. In this case, each resin member 29 is attached to, for example, a metal portion of the contactor holder 28.

１電磁継電器
２接点装置
２１１固定接点
２２可動接触子
２５可動軸
２８接触子ホルダ
２８４〜２８７凸領域
２９樹脂部材
３駆動装置
５１ベース
５１２〜５１５突出部 1 Electromagnetic relay 2 Contact device 211 Fixed contact 22 Movable contact 25 Movable shaft 28 Contact holder 284 to 287 Convex region 29 Resin member 3 Drive device 51 Base 512-515 Protruding part

Claims

Fixed terminal part and
Movable having a movable contact facing the fixed terminal portion, a movable shaft for bringing the movable contact into contact with and separated from the fixed terminal portion, and a spring arranged between the movable contact and the movable shaft. Department and
With a base,
The fixed terminal portion
1st fixed terminal and
It has a second fixed terminal provided alongside the first fixed terminal along the first direction.
The movable axis extends along a second direction orthogonal to the first direction.
The movable contact has a width along the first direction longer than a width along the third direction orthogonal to the first direction and the second direction.
The base has a first inner wall and a second inner wall facing the movable portion in the third direction.
For example the first protrusion and the second protrusion further Bei projecting toward the first inner wall to said second internal wall in said third direction,
A gap is formed between the first protruding portion and the movable portion and between the second protruding portion and the movable portion.
The movable portion is rotatable around the movable axis.
Electromagnetic relay.

The first inner wall has a first region between the first protrusion and the second protrusion.
In the third direction, the distance from the tip of the first protruding portion to the movable portion is shorter than the distance from the first region to the movable portion.
In the third direction, the distance from the tip of the second protrusion to the movable portion is shorter than the distance from the first region to the movable portion.
The electromagnetic relay according to claim 1.

A third projecting portion and a fourth projecting portion projecting from the second inner wall toward the first inner wall in the third direction are further provided.
The electromagnetic relay according to claim 2.

The second inner wall has a second region between the third protrusion and the fourth protrusion.
In the third direction, the distance from the tip of the third protrusion to the movable portion is shorter than the distance from the second region to the movable portion.
In the third direction, the distance from the tip of the fourth protrusion to the movable portion is shorter than the distance from the second region to the movable portion.
The electromagnetic relay according to claim 3.

When the movable portion is rotated clockwise, the movable contact is thus being prevented from rotating at least one of the second projecting portion or the third protrusion,
It said movable portion when rotated in the counterclockwise direction, the movable contactor is at least one to therefore the rotation restriction of the first protrusions or the fourth protruding portion,
The electromagnetic relay according to claim 3 or 4.

The second inner wall has a second region between the third protrusion and the fourth protrusion.
The first inner wall is
A third region that is different from the first region and is adjacent to the root of the first protrusion.
It has a fourth region that is different from the first region and is adjacent to the root of the second protrusion.
The second inner wall is
A fifth region that is different from the second region and is adjacent to the root of the third protrusion,
It has a sixth region that is different from the second region and is adjacent to the root of the fourth protrusion.
In the third direction, the distance from the tip of the first protruding portion to the movable portion is shorter than the distance from the third region to the movable portion.
In the third direction, the distance from the tip of the second protrusion to the movable portion is shorter than the distance from the fourth region to the movable portion.
In the third direction, the distance from the tip of the third protrusion to the movable portion is shorter than the distance from the fifth region to the movable portion.
In the third direction, the distance from the tip of the fourth projecting portion to the movable portion, rather short than the distance from the sixth region to the movable part,
The base is a hollow box type in which the first protruding portion, the second protruding portion, the third protruding portion, the fourth protruding portion, the first inner wall, and the second inner wall are integrally formed of ceramic. Is,
The electromagnetic relay according to any one of claims 3 to 5.

A base for storing fixed and movable contacts
The base is a hollow box type with an open lower surface.
An upper surface having a first through hole and a second through hole provided side by side along the first direction and facing the lower surface in the second direction orthogonal to the first direction.
With a peripheral wall that constitutes the side surface,
The upper surface and the peripheral wall are made of ceramic.
The peripheral wall
A pair of first inner walls extending along the first direction and facing each other in a third direction orthogonal to the first direction and the second direction.
A pair of second inner walls that are connected to the pair of first inner walls in the third direction and face each other in the first direction.
A first protruding portion and a second protruding portion located on the first inner wall of one of the pair of first inner walls and projecting along the third direction.
A third protruding portion and a fourth protruding portion located on the other first inner wall of the pair of first inner walls and projecting along the third direction are provided.
The third protruding portion faces the first protruding portion in the third direction.
The fourth protrusion faces the second protrusion in the third direction.
The tip of the first protrusion and the tip of the second protrusion are separated from each other through a gap.
The tip of the first protrusion and the second inner wall of one of the pair of second inner walls are separated from each other through a gap.
The tip of the second protrusion and the other second inner wall of the pair of second inner walls are separated from each other through a gap.
The center of the first through hole is closer to the second inner wall of one of the pair of second inner walls than the tip of the first protrusion, and is closer to the second inner wall of the first protrusion than the tip of the second protrusion. Located near the tip,
The center of the second through hole is closer to the other second inner wall of the pair of second inner walls than the tip of the second protrusion, and is closer to the second inner wall of the second protrusion than the tip of the first protrusion. Located near the tip ,
The first protrusion, the second protrusion, the third protrusion, and the fourth protrusion are made of the ceramic and integrally formed with the peripheral wall.
base.

Of the pair of second inner walls, the distance between the one second inner wall and the tip of the first protrusion along the first direction is the distance between the tip of the first protrusion and the tip of the second protrusion. It is larger than the interval along the first direction and
Of the pair of second inner walls, the distance between the other second inner wall and the tip of the second protrusion along the first direction is the distance between the tip of the first protrusion and the tip of the second protrusion. Greater than the spacing along the first direction,
The base according to claim 7.

The cross section of the first protruding portion perpendicular to the second direction, the cross section of the first protruding portion on the first inner wall side with respect to the center of the first protruding portion in the third direction, and the first. When divided into two regions, the cross section of the first protrusion on the first inner wall side, the cross section of the first protrusion is larger than the cross section of the cross section of the first protrusion on the tip side. big,
The cross section of the second protruding portion perpendicular to the second direction, the cross section of the second protruding portion on the first inner wall side with respect to the center of the second protruding portion in the third direction, and the second. When divided into two regions, the cross section of the second protrusion on the first inner wall side, the cross section of the second protrusion is larger than the cross section of the cross section of the second protrusion on the tip side. big,
The cross section of the third protrusion perpendicular to the second direction, the cross section of the third protrusion on the second inner wall side with respect to the center of the third protrusion in the third direction, and the third. When divided into two regions, the cross section of the third protrusion on the second inner wall side, the cross section of the third protrusion is larger than the cross section of the cross section of the third protrusion on the tip side. big,
The cross section of the fourth protrusion perpendicular to the second direction, the cross section of the fourth protrusion on the second inner wall side with respect to the center of the fourth protrusion in the third direction, and the fourth. When divided into two regions, the cross section of the fourth protrusion on the second inner wall side, the cross section of the fourth protrusion is larger than the cross section of the cross section of the fourth protrusion on the tip side. big,
The base according to claim 7 or 8.

The first protrusion, the second protrusion, the third protrusion, and the fourth protrusion are connected to the upper surface.
The base according to any one of claims 7 to 9.

The tip surfaces of the first protrusion, the second protrusion, the third protrusion, and the fourth protrusion are curved surfaces.
The base according to any one of claims 7 to 10.

The first protrusion, the second protrusion, the third protrusion, and the fourth protrusion are made of ceramic.
The base according to any one of claims 7 to 11.

Further comprising a connecting body joined to the opening peripheral edge of the lower surface of the peripheral wall.
The base according to any one of claims 7 to 12.

The base according to any one of claims 7 to 13, and
A pair of fixed contacts provided side by side along the first direction,
A pair of fixed terminals having the pair of fixed contacts at one end,
A drive with a coil and
A movable contact having a pair of movable contacts arranged so as to face the pair of fixed contacts,
It extends along the second direction, and the pair of movable contacts are moved along the second direction according to the energized state of the drive device to bring the pair of movable contacts into contact with the pair of fixed contacts. Equipped with a movable shaft arranged so as to be separated,
The pair of fixed contacts and the movable contact are housed in the base.
One of the fixed terminals of the pair of fixed terminals is inserted into the first through hole.
The other fixed terminal of the pair of fixed terminals is inserted into the second through hole.
Electromagnetic relay.