JP6945171B2

JP6945171B2 - Electromagnetic relay

Info

Publication number: JP6945171B2
Application number: JP2020018304A
Authority: JP
Inventors: 智史坂井; 浩司横山
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2019-06-26
Filing date: 2020-02-05
Publication date: 2021-10-06
Anticipated expiration: 2035-04-13
Also published as: JP2020074333A; JP7178596B2; JP2021144957A

Description

本発明は、電磁継電器に関する。 The present invention relates to an electromagnetic relay.

従来、固定接点に可動接点が接離する電気コンタクタ（電磁継電器）が知られている（例えば特許文献１参照）。特許文献１に記載された電気コンタクタは、可動コア（可動鉄心）がプランジャ（可動軸）を軸方向に変位させ、プランジャが後退位置から作動位置へ接点プレート（可動接触子）を軸方向に変位させることによって、作動位置で接点プレートを端子のヘッド（固定接点）に接触させることができる。また、特許文献１に記載された電気コンタクタは、異物の移動を低減させるために分離プレートの横方向壁部分を備える。特許文献１に記載された横方向壁部分は、カバーの前方区画室と後方区画室との連通部において、後方を向いたカバーの内側横方向面に固定されている。 Conventionally, an electric contactor (electromagnetic relay) in which a movable contact is brought into contact with a fixed contact is known (see, for example, Patent Document 1). In the electric contactor described in Patent Document 1, the movable core (movable iron core) displaces the plunger (movable shaft) in the axial direction, and the plunger displaces the contact plate (movable contactor) from the retracted position to the operating position in the axial direction. By doing so, the contact plate can be brought into contact with the head (fixed contact) of the terminal at the operating position. Further, the electric contactor described in Patent Document 1 includes a lateral wall portion of the separation plate in order to reduce the movement of foreign matter. The lateral wall portion described in Patent Document 1 is fixed to the inner lateral surface of the cover facing rearward at the communication portion between the front compartment and the rear compartment of the cover.

特開平１０−３０８１５２号公報Japanese Unexamined Patent Publication No. 10-308152

しかしながら、特許文献１に記載された従来の電磁継電器は、固定された横方向壁部分に対して接点プレートが可動するため、軸方向ブッシング内に設けられて可動軸が挿入される挿入孔に異物が侵入するという問題があった。 However, in the conventional electromagnetic relay described in Patent Document 1, since the contact plate is movable with respect to the fixed lateral wall portion, foreign matter is provided in the axial bushing and is inserted into the insertion hole into which the movable shaft is inserted. There was a problem of intrusion.

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、可動軸が挿入される挿入孔へ異物が侵入することを効率よく低減できる電磁継電器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 capable of efficiently reducing foreign matter from entering an insertion hole into which a movable shaft is inserted.

本発明の電磁継電器は、固定接点と、可動接触子と、可動軸と、接圧ばねと、隔壁部材と、第１隔壁と、第２隔壁と、を備える。前記可動接触子は、第１軸に沿って延び、前記固定接点に対向配置された可動接点を含む。前記可動軸は、前記第１軸に直交する第２軸に沿って延び、駆動装置の通電状態に応じて、前記可動接触子を前記第２軸に沿って移動させて前記可動接点を前記固定接点に接離させるように配置される。前記接圧ばねは、前記可動接触子に対して前記固定接点とは反対側に設けられ、前記可動接点を前記固定接点に向けて付勢する。前記隔壁部材は、前記可動軸の端部の周囲に設けられ、前記第２軸に沿って第１地点から第２地点まで円筒形状に突出する突出部を含む。前記第１隔壁は、前記可動軸の周囲に設けられ、前記第２軸に沿って第３地点から第４地点まで突出する。前記第２隔壁は、前記第２軸に沿って第５地点から第６地点まで突出する。前記第２軸に沿った方向において、前記隔壁部材の前記突出部の前記第１地点と前記第１隔壁の前記第３地点とは互いに異なる位置である。前記第２軸に沿った方向において、前記隔壁部材の前記突出部の前記第２地点と前記第１隔壁の前記第４地点とは互いに異なる位置である。前記突出部の外径は、前記接圧ばねの外径よりも小さい。前記第１隔壁は、円筒形状である。前記第１隔壁の内径は、前記突出部の外径よりも大きい。少なくとも前記可動接点が前記固定接点から開離しているとき、前記突出部は、前記第２軸と直交する方向において前記第１隔壁と互いに重なり合う。 The electromagnetic relay of the present invention includes a fixed contact, a movable contactor, a movable shaft, a pressure contact spring, a partition member, a first partition, and a second partition. The movable contact includes a movable contact that extends along a first axis and is arranged to face the fixed contact. The movable shaft extends along a second axis orthogonal to the first axis, and the movable contact is moved along the second axis according to the energized state of the driving device to fix the movable contact. Arranged so as to be in contact with and separated from the contacts. The pressure contact spring is provided on the side of the movable contactor opposite to the fixed contact, and urges the movable contact toward the fixed contact. The partition wall member is provided around an end portion of the movable shaft, and includes a protruding portion that projects in a cylindrical shape from a first point to a second point along the second axis. The first partition wall is provided around the movable shaft and projects from a third point to a fourth point along the second shaft. The second partition wall projects from a fifth point to a sixth point along the second axis. In the direction along the second axis, the first point of the protrusion of the partition member and the third point of the first partition are different from each other. In the direction along the second axis, the second point of the protrusion of the partition member and the fourth point of the first partition are different from each other. The outer diameter of the protruding portion is smaller than the outer diameter of the pressure contact spring. The first partition wall has a cylindrical shape. The inner diameter of the first partition wall is larger than the outer diameter of the protruding portion. At least when the movable contact is separated from the fixed contact, the protrusion overlaps with the first bulkhead in a direction orthogonal to the second axis.

この接点装置は、前記可動軸が挿入される挿入孔の周囲に設けられた第２の隔壁を含み前記可動軸の軸方向において前記第１の隔壁部材と対向する第２の隔壁部材をさらに備えることが好ましい。 This contact device further includes a second partition wall provided around an insertion hole into which the movable shaft is inserted, and further includes a second partition wall member facing the first partition wall member in the axial direction of the movable shaft. Is preferable.

この接点装置において、前記第１の隔壁および前記第２の隔壁は、前記可動軸の前記軸方向と直交する方向において重なり合うことが好ましい。 In this contact device, it is preferable that the first partition wall and the second partition wall overlap each other in a direction orthogonal to the axial direction of the movable shaft.

この接点装置において、前記第１の隔壁および前記第２の隔壁の少なくとも一方は、複数個同心円状に前記可動軸の周囲に設けられ、前記第１の隔壁および前記第２の隔壁は、前記可動軸の前記軸方向と直交する方向において互い違いに重なり合うことが好ましい。 In this contact device, at least one of the first partition wall and the second partition wall is concentrically provided around the movable shaft, and the first partition wall and the second partition wall are movable. It is preferable that the axes overlap each other in a direction orthogonal to the axial direction.

この接点装置において、前記第１の隔壁の先端部および前記第２の隔壁の先端部は、前記軸方向において対向することが好ましい。 In this contact device, it is preferable that the tip end portion of the first partition wall and the tip end portion of the second partition wall face each other in the axial direction.

この接点装置において、前記第１の隔壁は、前記軸方向と交差する方向に延びて設けられた延設部を含むことが好ましい。 In this contact device, the first partition wall preferably includes an extension portion provided so as to extend in a direction intersecting the axial direction.

本発明の電磁継電器は、前記接点装置と、前記可動接触子が前記一対の固定接点に接離するように前記可動軸を駆動する駆動装置とを備える。 The electromagnetic relay of the present invention includes the contact device and a drive device that drives the movable shaft so that the movable contact is brought into contact with and separated from the pair of fixed contacts.

本発明では、可動軸が挿入される挿入孔へ異物が侵入することを効率よく低減できる。例えば、異物が挿入孔を介して駆動装置に侵入することを低減できる。 In the present invention, it is possible to efficiently reduce foreign matter from entering the insertion hole into which the movable shaft is inserted. For example, it is possible to reduce foreign matter from entering the drive device through the insertion hole.

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. 2 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要部の外観図である。FIG. 5 is an external view of a main part of the electromagnetic relay according to the first embodiment. 実施形態２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 Embodiment 2. FIG. 実施形態３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 Embodiment 3. FIG. 実施形態３に係る電磁継電器の要部の外観図である。FIG. 5 is an external view of a main part of the electromagnetic relay according to the third embodiment. 実施形態４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 Embodiment 4. FIG. 実施形態４に係る電磁継電器の要部の外観図である。FIG. 5 is an external view of a main part of the electromagnetic relay according to the fourth embodiment. 実施形態４に係る電磁継電器の要部の外観図である。FIG. 5 is an external view of a main part of the electromagnetic relay according to the fourth embodiment. 実施形態５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 Embodiment 5. 実施形態６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 Embodiment 6.

（実施形態１）
実施形態１に係る電磁継電器１は、図１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 FIG. 1, 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（第１の隔壁部材）と、可動軸２５と、調整部２６と、ヨーク２７と、接触子ホルダ２８と、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 (first partition member), a movable shaft 25, an adjusting portion 26, and a yoke 27. The contact holder 28, the case 51, the connecting body 52, and the insulating member 53 are provided.

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、ケース５１の貫通孔５１１に挿通されて設けられ、上端をケース５１の上面から突出させた状態でケース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 fixed terminal 21 is provided by being inserted into a through hole 511 of the case 51, and is joined to the case 51 by brazing with the upper end protruding from the upper surface of the case 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。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. 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。可動接触子２２は、左右方向（図１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１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. The movable contact 22 is formed in a flat plate shape that is long in the left-right direction (left-right direction in FIG. 1), 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. 1).

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. The spring receiving portion 24 is positioned with respect to the pressure contact spring 23 by fitting the positioning convex portion 242 of the spring receiving portion 24 into the inner diameter portion on the lower end side of 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に接離するように軸方向（図１の上下方向）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を挿通した状態で、可動鉄心３４に固定される。 The movable shaft 25 moves in the axial direction (vertical direction in FIG. 1) 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 with 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 inserted.

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３に示すように、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。 As shown in FIG. 3, 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３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. 3). 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.

ケース５１は、図１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。ケース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. 1, the case 51 is formed in a hollow box shape having an open lower surface from a heat-resistant material such as ceramic. Two through holes 511 are formed on the upper surface of the case 51 so as to be arranged in the left-right direction.

連結体５２は、第１端がケース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 case 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、周壁の上端側がケース５１の周壁の内面に当接する。これにより、絶縁部材５３は、ケース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、ケース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 case 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 case 51 and the connecting body 52 at the opening of the case 51.

ところで、本実施形態の接点装置２では、図４に示すように、ばね受け部２４は、可動接触子２２の一対の固定接点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（第１の隔壁）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。そして、本実施形態の隔壁２４４は、可動接触子２２および可動軸２５と連動する。ここで、連動とは、ある部材が動くと他の部材も同時に動くことだけでなく、ある部材が動くと少しの時間遅れがあった後に他の部材が動くことも含む。なお、隔壁２４４は、可動接触子２２のみと連動してもよいし、可動軸２５のみと連動してもよい。 By the way, in the contact device 2 of the present embodiment, as shown in FIG. 4, the spring receiving portion 24 is arranged on the side opposite to the pair of fixed contact 211 side of the movable contact 22. The spring receiving portion 24 includes a base portion 241, a positioning convex portion 242, a protruding portion 243, and a partition wall 244 (first partition wall). 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. Then, the partition wall 244 of the present embodiment is interlocked with the movable contactor 22 and the movable shaft 25. Here, interlocking includes not only that when a certain member moves, other members move at the same time, but also that when a certain member moves, another member moves after a slight time delay. The partition wall 244 may be interlocked only with the movable contact 22 or may be interlocked with only 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.

続いて、本実施形態に係る接点装置２の動作について説明する。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. 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.

次に、駆動装置３について詳細を説明する。 Next, the drive device 3 will be described in detail.

駆動装置３は、電磁石ブロックであり、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 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。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. The coil terminal is formed of a conductive material such as copper, and is connected to the 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がコイルボビン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について詳細を説明する。 Next, the housing 4 will be described in detail.

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１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. 1, 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、ケース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 case 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に当接して接点間が導通する。 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 comes into contact with the fixed contact 211, and the contacts become conductive.

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 moves integrally with the movable contact 22, and the movable contact is brought into contact with and separated from the fixed contact 211. ..

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が一対の固定接点２１１に接離する箇所（接点部）すなわち異物の発生個所の近くに隔壁２４４が設けられている。これにより、簡単な構成でありながら、効率的に可動軸２５の挿入孔５３３への異物の侵入を低減させることができる。すなわち、異物が挿入孔５３３を介して駆動装置３に侵入することを低減できる。 In the contact device 2 according to the present embodiment described above, a partition wall 244 is provided near a portion (contact portion) where the movable contact 22 comes into contact with and separates from the pair of fixed contacts 211, that is, a location where foreign matter is generated. As a result, it is possible to efficiently reduce the intrusion of foreign matter into the insertion hole 533 of the movable shaft 25, despite the simple configuration. That is, it is possible to reduce the invasion of foreign matter into the drive device 3 through the insertion hole 533.

（実施形態２）
実施形態２に係る接点装置２は、図５に示すように、絶縁部材５３に隔壁５３４が設けられている点で、実施形態１に係る接点装置２（図１参照）と相違する。なお、実施形態１の電磁継電器１（図１参照）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)
The contact device 2 according to the second embodiment is different from the contact device 2 according to the first embodiment (see FIG. 1) in that a partition wall 534 is provided on the insulating member 53 as shown in FIG. The same components as those of the electromagnetic relay 1 (see FIG. 1) of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

本実施形態の絶縁部材５３は、可動軸２５が挿入される挿入孔５３３の周囲に設けられた隔壁５３４（第２の隔壁）を備えている。すなわち、絶縁部材５３は、底面部５３１と、突出部５３２と、隔壁５３４とを備えている。隔壁５３４は、可動軸２５の軸方向に沿って底面部５３１からばね受け部２４（第１の隔壁部材）に向かって延びて設けられている。そして、絶縁部材５３は、可動軸２５の軸方向（上下方向）においてばね受け部２４と対向している。なお、実施形態１の絶縁部材５３（図１参照）と同様の機能については説明を省略する。 The insulating member 53 of the present embodiment includes a partition wall 534 (second partition wall) provided around the insertion hole 533 into which the movable shaft 25 is inserted. That is, the insulating member 53 includes a bottom surface portion 531, a protruding portion 532, and a partition wall 534. The partition wall 534 is provided so as to extend from the bottom surface portion 531 toward the spring receiving portion 24 (first partition wall member) along the axial direction of the movable shaft 25. The insulating member 53 faces the spring receiving portion 24 in the axial direction (vertical direction) of the movable shaft 25. The same function as the insulating member 53 (see FIG. 1) 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、可動接触子２２が一対の固定接点２１１に接離する箇所（接点部）すなわち異物の発生個所の近くに隔壁２４４，５３４が設けられている。これにより、簡単な構成でありながら、効率的に可動軸２５の挿入孔への異物の侵入を低減させることができる。 In the contact device 2 according to the present embodiment described above, partition walls 244 and 534 are provided near a portion (contact portion) where the movable contact 22 comes into contact with and separates from the pair of fixed contacts 211, that is, a location where foreign matter is generated. As a result, it is possible to efficiently reduce the intrusion of foreign matter into the insertion hole of the movable shaft 25, despite the simple configuration.

（実施形態３）
実施形態３に係る接点装置２は、図６に示すように、ばね受け部２４の隔壁２４４と絶縁部材５３の隔壁５３４とが重なり合う点で、実施形態２に係る接点装置２（図５参照）と相違する。なお、実施形態２の電磁継電器１（図５参照）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 3)
As shown in FIG. 6, the contact device 2 according to the third embodiment is a contact device 2 according to the second embodiment (see FIG. 5) in that the partition wall 244 of the spring receiving portion 24 and the partition wall 534 of the insulating member 53 overlap each other. Is different from. The same components as those of the electromagnetic relay 1 (see FIG. 5) of the second embodiment are designated by the same reference numerals, and the description thereof will be omitted.

本実施形態におけるばね受け部２４（第１の隔壁部材）の隔壁２４４（第１の隔壁）および絶縁部材５３（第２の隔壁部材）の隔壁５３４（第２の隔壁）は、可動軸２５の軸方向と直交する方向において重なり合うように設けられている。より詳細に説明すると、図７に示すように、絶縁部材５３は、底面部５３１と、突出部５３２と、隔壁５３４とを備えている。隔壁５３４は、可動軸２５の軸方向に沿って底面部５３１からばね受け部２４に向かって延びて設けられている。そして、隔壁２４４および隔壁５３４は、可動軸２５の軸方向と直交する方向において重なり合っている。なお、実施形態２のばね受け部２４および絶縁部材５３（図５参照）と同様の機能については説明を省略する。 The partition wall 244 (first partition wall) of the spring receiving portion 24 (first partition wall member) and the partition wall 534 (second partition wall) of the insulating member 53 (second partition wall member) in the present embodiment are the movable shaft 25. It is provided so as to overlap in a direction orthogonal to the axial direction. More specifically, as shown in FIG. 7, the insulating member 53 includes a bottom surface portion 531, a protruding portion 532, and a partition wall 534. The partition wall 534 is provided so as to extend from the bottom surface portion 531 toward the spring receiving portion 24 along the axial direction of the movable shaft 25. The partition wall 244 and the partition wall 534 overlap each other in a direction orthogonal to the axial direction of the movable shaft 25. The same functions as the spring receiving portion 24 and the insulating member 53 (see FIG. 5) of the second 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、ばね受け部２４の隔壁２４４（第１の隔壁）および絶縁部材５３の隔壁５３４（第２の隔壁）が重なり合うことによって、異物の移動経路が長くなり、さらに異物の侵入を低減させることができる。 In the contact device 2 according to the present embodiment described above, the partition wall 244 (first partition wall) of the spring receiving portion 24 and the partition wall 534 (second partition wall) of the insulating member 53 overlap each other, so that the movement path of the foreign matter becomes long. Therefore, the invasion of foreign matter can be further reduced.

（実施形態４）
実施形態４に係る接点装置２は、図８，９に示すように、複数の隔壁２４４，５３４，５３５が互いに重なり合う点で、実施形態３に係る接点装置２（図６参照）と相違する。なお、実施形態３の電磁継電器１（図６参照）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 4)
As shown in FIGS. 8 and 9, the contact device 2 according to the fourth embodiment is different from the contact device 2 (see FIG. 6) according to the third embodiment in that a plurality of partition walls 244, 534 and 535 overlap each other. The same components as those of the electromagnetic relay 1 (see FIG. 6) of the third embodiment are designated by the same reference numerals, and the description thereof will be omitted.

本実施形態の絶縁部材５３の隔壁５３４，５３５は、複数個同心円状に可動軸２５の周囲に設けられている。すなわち、図１０に示すように、絶縁部材５３は、底面部５３１と、突出部５３２と、２つの隔壁５３４，５３５とを備えている。そして、本実施形態では、隔壁２４４および隔壁５３４，５３５は、可動軸２５と直交する方向において互い違いに重なり合う。なお、実施形態１のばね受け部２４および絶縁部材５３（図６参照）と同様の機能については説明を省略する。 A plurality of partition walls 534 and 535 of the insulating member 53 of the present embodiment are concentrically provided around the movable shaft 25. That is, as shown in FIG. 10, the insulating member 53 includes a bottom surface portion 531 and a protruding portion 532, and two partition walls 534 and 535. Then, in the present embodiment, the partition walls 244 and the partition walls 534 and 535 are alternately overlapped in the direction orthogonal to the movable shaft 25. The same functions as the spring receiving portion 24 and the insulating member 53 (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、ばね受け部２４の隔壁２４４（第１の隔壁）および絶縁部材５３の隔壁５３４，５３５（第２の隔壁）によって異物の移動経路がラビリンス状になり、さらに異物の侵入を低減させることができる。 In the contact device 2 according to the present embodiment described above, the movement path of the foreign matter is labyrinthed by the partition wall 244 (first partition wall) of the spring receiving portion 24 and the partition walls 534 and 535 (second partition wall) of the insulating member 53. Therefore, the invasion of foreign matter can be further reduced.

なお、絶縁部材５３の隔壁ではなく、ばね受け部２４の隔壁が複数個同心円状に可動軸２５の周囲に設けられていてもよいし、ばね受け部２４の隔壁と絶縁部材５３の隔壁のいずれもが複数個同心円状に可動軸２５の周囲に設けられていてもよい。 A plurality of partition walls of the spring receiving portion 24 may be concentrically provided around the movable shaft 25 instead of the partition wall of the insulating member 53, or either the partition wall of the spring receiving portion 24 or the partition wall of the insulating member 53. A plurality of thighs may be concentrically provided around the movable shaft 25.

（実施形態５）
実施形態５に係る接点装置２は、図１１に示すように、対応する隔壁２４４，５３４の先端部同士が対向している点で、実施形態２に係る接点装置２（図５参照）と相違する。なお、実施形態２の電磁継電器１（図５参照）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 5)
As shown in FIG. 11, the contact device 2 according to the fifth embodiment is different from the contact device 2 (see FIG. 5) according to the second embodiment in that the tips of the corresponding partition walls 244 and 534 face each other. do. The same components as those of the electromagnetic relay 1 (see FIG. 5) of the second embodiment are designated by the same reference numerals, and the description thereof will be omitted.

本実施形態の接点装置２では、ばね受け部２４の隔壁２４４（第１の隔壁）の先端部および絶縁部材５３の隔壁（第２の隔壁）の先端部は、可動軸２５の軸方向において対向している。すなわち、隔壁２４４と隔壁５３４とは、同じ半径の円筒である。なお、実施形態２のばね受け部２４および絶縁部材５３（図５参照）と同様の機能については説明を省略する。 In the contact device 2 of the present embodiment, the tip of the partition wall 244 (first partition wall) of the spring receiving portion 24 and the tip of the partition wall (second partition wall) of the insulating member 53 face each other in the axial direction of the movable shaft 25. doing. That is, the partition wall 244 and the partition wall 534 are cylinders having the same radius. The same functions as the spring receiving portion 24 and the insulating member 53 (see FIG. 5) of the second 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、ばね受け部２４の隔壁２４４（第１の隔壁）と絶縁部材５３の隔壁（第２の隔壁）とが可動軸２５の軸方向において接触するので、小型化を図ることができる。 In the contact device 2 according to the present embodiment described above, the partition wall 244 (first partition wall) of the spring receiving portion 24 and the partition wall (second partition wall) of the insulating member 53 come into contact with each other in the axial direction of the movable shaft 25. , It is possible to reduce the size.

（実施形態６）
実施形態６に係る接点装置２は、図１２に示すように、ばね受け部２４の上方と下方とを遮断するように隔壁２４４が設けられている点で、実施形態１に係る接点装置２（図１参照）と相違する。なお、実施形態１の電磁継電器１（図１参照）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 6)
As shown in FIG. 12, the contact device 2 according to the sixth embodiment is provided with a partition wall 244 so as to block the upper side and the lower side of the spring receiving portion 24. See FIG. 1). The same components as those of the electromagnetic relay 1 (see FIG. 1) of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

本実施形態のばね受け部２４では、隔壁２４４（第１の隔壁）は、可動軸２５の軸方向と交差する方向に延びて設けられた延設部を含んでいる。すなわち、隔壁２４４は、基部側が基部２４１から可動軸２５の軸方向に沿って延びており、先端側が軸方向と交差する方向に延びている。なお、実施形態１のばね受け部２４（図１参照）と同様の機能については説明を省略する。 In the spring receiving portion 24 of the present embodiment, the partition wall 244 (first partition wall) includes an extension portion provided so as to extend in a direction intersecting the axial direction of the movable shaft 25. That is, the partition wall 244 extends from the base portion 241 along the axial direction of the movable shaft 25, and the tip end side extends in a direction intersecting the axial direction. The same function as the spring receiving portion 24 (see FIG. 1) 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、周方向に位置する突出部５３２と隔壁２４４との間の隙間を小さくすることができるので、異物の移動経路を長くすることができる。 In the contact device 2 according to the present embodiment described above, the gap between the protrusion 532 located in the circumferential direction and the partition wall 244 can be reduced, so that the movement path of the foreign matter can be lengthened.

１電磁継電器
２接点装置
２１１固定接点
２２可動接触子
２４ばね受け部（第１の隔壁部材）
２４３突出部
２４４隔壁（第１の隔壁）
２５可動軸
３駆動装置
５３絶縁部材（第２の隔壁部材）
５３３挿入孔
５３４隔壁（第１隔壁）
５３５隔壁（第２隔壁） 1 Electromagnetic relay 2 Contact device 211 Fixed contact 22 Movable contact 24 Spring receiving part (first partition member)
243 Protruding part 244 partition wall (first partition wall)
25 Movable shaft 3 Drive device 53 Insulation member (second partition member)
533 Insertion hole 534 Septum (1st bulkhead)
535 partition wall (second partition wall)

Claims

With fixed contacts
A movable contact that extends along the first axis and includes a movable contact that is arranged to face the fixed contact.
It extends along a second axis orthogonal to the first axis, and moves the movable contact along the second axis according to the energized state of the drive device to bring the movable contact into contact with the fixed contact. Movable shafts arranged so that
A pressure spring provided on the side opposite to the fixed contact with respect to the movable contact and urging the movable contact toward the fixed contact.
A partition wall member provided around the end of the movable shaft and including a protruding portion that protrudes in a cylindrical shape from a first point to a second point along the second axis.
A first partition wall provided around the movable shaft and protruding from a third point to a fourth point along the second shaft.
A second partition wall protruding from the fifth point to the sixth point along the second axis,
With
In the direction along the second axis, the first point of the protrusion of the partition member and the third point of the first partition are different from each other.
In the direction along the second axis, the second point of the protrusion of the partition member and the fourth point of the first partition are different from each other.
The outer diameter of the protrusion, rather smaller than the outer diameter of the contact pressure spring,
The first partition wall has a cylindrical shape and has a cylindrical shape.
The inner diameter of the first partition wall is larger than the outer diameter of the protruding portion.
At least when the movable contact is separated from the fixed contact, the protrusion overlaps with the first bulkhead in a direction orthogonal to the second axis.
Electromagnetic relay.

The partition member is made of an insulating material.
The electromagnetic relay according to claim 1.

The first partition wall is made of an insulating material.
The electromagnetic relay according to claim 1 or 2.

The second partition wall is provided around the first partition wall, and is provided around the first partition wall.
The drive device is arranged so as to surround at least a part of the movable shaft, and
The first partition wall and the second partition wall are arranged above the upper surface of the drive device on the movable contact side.
The electromagnetic relay according to claim 1.

The drive device has a coil bobbin having a cylindrical portion, an exciting winding wound around the cylindrical portion, and a joint iron plate arranged on the movable contact side of the coil bobbin.
The electromagnetic relay according to claim 1 or 4.

When viewed along the second axis, the protrusion, the first partition wall, and the second partition wall are provided coaxially with the movable axis.
The electromagnetic relay according to claim 1 or 4.

The second partition wall has a cylindrical shape.
The electromagnetic relay according to claim 1.

The protruding portion, the first partition wall, and the second partition wall are provided in a labyrinth shape.
The electromagnetic relay according to claim 1.

The partition member includes a third partition member.
The third partition wall and the first partition wall are cylinders having the same radius.
The electromagnetic relay according to claim 1.