WO2019026945A1

WO2019026945A1 - Electromagnetic relay

Info

Publication number: WO2019026945A1
Application number: PCT/JP2018/028805
Authority: WO
Inventors: 弘一郎松島; 裕二小材; 弘泰田中
Original assignee: オムロン株式会社
Priority date: 2017-08-04
Filing date: 2018-08-01
Publication date: 2019-02-07
Also published as: JP2019032945A

Abstract

An electromagnetic relay provided with a fixed plate fixed to a housing, the fixed plate rotatably supporting, with the housing, a rotation block. The fixed plate has a through hole penetrating in the thickness direction of the fixed plate, and a positioning protrusion of a second yoke is connected to the fixed plate. The through hole has a holding groove part, which is provided so as to enable movement of the connected positioning protrusion in the direction in which a shaft hole part and the through hole are arranged, and so as to restrict the position of the connected positioning protrusion in a direction intersecting the arrangement direction. The holding groove part extends in the arrangement direction from the edge part farther from the shaft hole part in the arrangement direction, intercommunicating the through hole and the exterior of the fixed plate, and is capable of holding the position of a rotation shaft part in the arrangement direction.

Description

Electromagnetic relay

The present disclosure relates to an electromagnetic relay.

The electromagnetic relay disclosed in Patent Document 1 includes a rectangular box-shaped housing having an accommodating portion inside, and two fixed contact side terminals and two movable contact side terminals fixed to the housing. In the housing portion of the electromagnetic relay, two fixed contact portions provided to each fixed contact side terminal, two movable contact pieces provided to each movable contact side terminal, and each movable contact piece are provided and each Two movable contact parts arranged to face fixed contact parts, an electromagnet part whose polarity is reversed according to the direction of the supplied current, and one rotation that rotates in different directions according to the polarity of the electromagnet part It is equipped with a block.

In this electromagnetic relay, the electromagnet portion extends from both ends of the cylindrical coil and the coil extending direction along the surface of the coil, and the tips are opposed to each other to provide a space between the tips. And two yokes. A pivoting block is disposed between the two yoke tips so that a pivoting shaft portion constituting a pivoting axis extends in a direction perpendicular to the bottom surface of the housing. A fixed plate in which one end in the extending direction of the rotating shaft portion of the rotating block is rotatably supported on the bottom surface of the housing and the other end in the extending direction is bridged between the tips of the respective yokes It is rotatably supported by an axial hole provided in the housing.

US2009 / 0033446A1

However, in the electromagnetic relay, the protrusions protruding in the direction orthogonal to the bottom surface of the housing from the tip end of each yoke are respectively inserted in a state in which two through holes corresponding to the protrusions of each yoke of the fixed plate have play. ing. For this reason, since the position of the fixed plate can not be determined accurately, the position of the other end of the pivot shaft portion of the pivot block may not be constant, and the operating characteristics may not be stable.

Then, this indication makes it a subject to provide an electromagnetic relay which can exhibit a stable operation characteristic.

The electromagnetic relay according to one aspect of the present disclosure is
A box-shaped insulating housing having a housing therein;
A plate-like fixed contact side terminal fixed to the housing, extending from the outside of the housing to the housing portion, and having a stationary contact portion located in the housing portion;
A plate-like movable contact-side terminal fixed to the housing, extending from the outside of the housing to the housing portion, and arranged electrically independent of the fixed contact-side terminal;
The movable contact portion is disposed in the housing portion and electrically connected to the movable contact side terminal, and has a movable contact portion facing the fixed contact portion, and the movable contact portion contacts and opens the fixed contact portion. A movable contact piece that can be elastically deformed;
An electromagnet unit disposed in the housing and capable of selectively supplying current in different directions;
The movable contact portion is disposed in the housing portion so as to be rotatable about a rotation axis extending in a direction crossing a contact / separation direction in which the movable contact portion contacts or separates from the fixed contact portion, and is supplied to the electromagnet portion A pivoting block which pivots in different directions with respect to the housing according to the direction of the current;
The movable contact piece is disposed in the housing portion and connected to the movable contact piece and the pivot block, and is moved according to the pivoting direction of the pivot block to elastically deform the movable contact piece. A movable member for bringing the fixed contact portion into contact with or separated from the fixed contact portion;
A fixing plate that extends in a direction intersecting with the contact and separation direction and the extending direction of the rotation shaft and is fixed to the housing and rotatably supports the rotation block with the housing;
The electromagnet block includes a first yoke and a second yoke respectively disposed between the movable contact piece and the electromagnet portion and having opposing surfaces facing each other, and the pivot block between the opposing surfaces. There is provided a pivot block arrangement space in which the
The pivot block has a pivot shaft portion extending in a direction intersecting with the contact and separation direction and the extension direction of the fixed plate to constitute the pivot shaft,
The second yoke has a positioning projection which protrudes in one extending direction of the pivot shaft from one of the extending directions of the pivot shaft,
The housing portion has a bearing portion which rotatably supports one first end portion of the rotation shaft portion in the extension direction of the rotation shaft portion,
The fixed plate includes an axial hole rotatably supporting the other second end of the rotating shaft in the extending direction, and a through hole extending in the thickness direction of the fixed plate. And a through hole to which the positioning protrusion is connected;
The through hole can restrict the position of the connected positioning protrusion in the direction crossing the arrangement direction while making the connected positioning protrusion movable in the arrangement direction of the shaft hole and the through hole. Extending in the arranging direction from the edge far from the axial hole in the arranging direction to communicate the through hole with the outside of the fixing plate, and the rotating shaft And a holding groove portion capable of holding the position of the head in the arrangement direction.

According to the electromagnetic relay of the above aspect, the fixing plate is fixed to the housing via the positioning projections of the first yoke and the second yoke and rotatably supports the turning block together with the housing. The fixed plate has an axial hole supporting one end of the rotary shaft of the rotary block, and a through hole penetrating in the thickness direction of the fixed plate and to which the positioning projection of the second yoke is connected. The through hole is provided with a holding groove extending in the arrangement direction of the shaft hole and the through hole and communicating the through hole with the outside of the fixing plate. The holding groove portion restricts the position of the connected positioning protrusion in the direction intersecting the arrangement direction of the axial hole portion and the through hole, and the allowable range of the position of the positioning protrusion of the second yoke with respect to the fixing plate in the arrangement direction And the position in the arrangement direction of the rotation shaft can be maintained, and the positional accuracy of the rotation shaft of the rotation block with respect to the housing in the arrangement direction can be kept approximately constant and high. As a result, the position of the pivoting shaft portion of the pivoting block becomes substantially constant, and an electromagnetic relay capable of exhibiting stable operation characteristics can be realized.

1 is a perspective view of an electromagnetic relay according to an embodiment of the present disclosure. The top view of the state which removed the cover of the electromagnetic relay of FIG. FIG. 2 is a plan view for explaining a drive unit of the electromagnetic relay of FIG. 1; Sectional drawing along the IV-IV line of FIG. The top view of the stationary plate of the electromagnetic relay of FIG. FIG. 2 is an enlarged plan view around a second through hole of a fixing plate of the electromagnetic relay of FIG. 1. FIG. 2 is an enlarged first plan view around a shaft hole of a fixed plate of the electromagnetic relay of FIG. 1;

Hereinafter, an embodiment of the present disclosure will be described according to the attached drawings. In the following description, terms that indicate specific directions or positions (for example, terms including “upper”, “lower”, “right”, and “left”) are used when necessary, but use of those terms Is for facilitating the understanding of the disclosure with reference to the drawings, and the technical scope of the present disclosure is not limited by the meanings of the terms. In addition, the following description is merely exemplary in nature and is not intended to limit the present disclosure, its application, or its application. Further, the drawings are schematic, and the proportions of the respective dimensions do not necessarily match the actual ones.

As shown in FIG. 1, the electromagnetic relay 1 according to an embodiment of the present disclosure includes a box-shaped insulating housing 10 and a first fixed contact side terminal 20 fixed to the housing 10 and a first movable contact side. A terminal 30, a second fixed contact side terminal 40, and a second movable contact side terminal 50 are provided.

Each of the first fixed contact terminal 20, the first movable contact terminal 30, the second fixed contact terminal 40, and the second movable contact terminal 50 is a substantially L-shaped rectangular plate in which an intermediate portion in the longitudinal direction is bent. In the shape of a circle. Also, the second fixed contact side terminal 40 and the second movable contact side terminal 50 are disposed between the first fixed contact side terminal 20 and the first movable contact side terminal 30, and the first fixed contact side terminal 20 Ends of the housing 10 of the first movable contact side terminal 30, the second fixed contact side terminal 40, and the second movable contact side terminal 50 on the outer side are aligned substantially in a straight line.

The housing 10 is, as shown in FIG. 1, formed of a substantially rectangular box-shaped base 11 and a substantially rectangular plate-shaped cover 12, and as shown in FIG. That is, the housing portion 13 is covered by the base 11 and the cover 12.

The first fixed contact side terminal 20 is, as shown in FIG. 2, on the first side wall 111 of the first side wall 111 and the second side wall 112 opposed in the longitudinal direction of the base 11 (that is, the left and right direction in FIG. It is fixed and extends from the outside of the housing 10 to the housing portion 13.

More specifically, the first fixed contact side terminal 20 extends from the outside of the housing 10 from the first side wall 111 of the base 11 to the outside of the housing 10 along the short direction of the base 11 from the third side wall 113 to the fourth side wall 114 2 and the end of the outer terminal 201 on the side of the first side wall 111, the inside of the housing 10 is from the first side wall 111 of the base 11 to the length of the base 11 And an inner terminal 202 extending toward the second side wall 112 along the direction. The first fixed contact portion 21 is fixed to the surface of the inner terminal 202 facing the fourth side wall 114. The first fixed contact portion 21 is disposed in the vicinity of the first side wall 111 of the base 11.

The first movable contact side terminal 30 is fixed to the fourth side wall 114 side with respect to the first fixed contact side terminal 20 of the second side wall 112 of the base 11 as shown in FIG. It extends from the outside of the housing 10 to the housing 13 in an electrically independent manner.

Specifically, the first movable contact side terminal 30 extends outside the housing 10 from the second side wall 112 of the base 11 to the direction from the third side wall 113 to the fourth side wall 114 along the short direction of the base 11 An internal portion of the housing 10 extending from the second side wall 112 of the base 11 to the first side wall 111 along the longitudinal direction of the base 11 is connected to the terminal 301 and the end of the outer terminal 301 on the second side wall 112 side. And a terminal 302.

As shown in FIG. 2, a first movable contact piece 31 is provided at an end portion 303 of the inner terminal 302 of the first movable contact-side terminal 30 on the first sidewall 111 side. The first movable contact piece 31 is disposed in the housing portion 13 and extends from the end portion 303 of the first movable contact side terminal 30 toward the first fixed contact side terminal 20. The first movable contact piece 31 is, for example, a plate-like laminate in which three elastically deformable rectangular plate members having conductivity are stacked in the plate thickness direction, and one end of the first movable contact piece 31 is The plate surface is fixed in contact with the plate surface of the end portion 303 of the inner terminal 302 of the first movable contact-side terminal 30. A first movable contact portion 32 is fixed to the surface of the other end of the first movable contact piece 31 in the longitudinal direction opposite to the third side wall 113 of the base 11. The first movable contact portion 32 is disposed to face the first fixed contact portion 21, and the first movable contact piece 31 is elastically deformed to shorten the base 11 with respect to the first fixed contact portion 21. It contacts or breaks along the hand direction.

In addition, a curve which protrudes in a U shape toward the third side wall 113 of the base 11 between the first movable contact portion 32 of the first movable contact piece 31 and the end portion 303 of the first movable contact side terminal 30 A unit 33 is provided. The bending portion 33 can absorb and reduce the amount of bending of the first movable contact piece 31 when the first movable contact piece 31 is elastically deformed, and smooth operation characteristics can be ensured.

The second fixed contact side terminal 40 is fixed to the fourth side wall 114 side of the first movable contact side terminal 30 of the second side wall 112 of the base 11 as shown in FIG. It extends from the outside of the housing 10 to the housing portion 13 in an electrically independent state with respect to the first movable contact terminal 30.

Specifically, the second fixed contact side terminal 40 extends outside the housing 10 from the second side wall 112 of the base 11 to the direction from the third side wall 113 to the fourth side wall 114 along the short direction of the base 11 A terminal 401 is connected to an end of the outer terminal 401 on the second sidewall 112 side, and the inside of the housing 10 extends from the second sidewall 112 of the base 11 along the longitudinal direction of the base 11 toward the first sidewall 111 And a terminal 402. The second fixed contact portion 41 is fixed to the surface of the inner terminal 402 facing the third side wall 113. The second fixed contact portion 41 is disposed in the vicinity of the second side wall 112 of the base 11.

As shown in FIG. 2, the second movable contact side terminal 50 is fixed to an end of the fourth side wall 114 of the base 11 on the first side wall 111 side, and the first fixed contact side terminal 20, the first movable contact side terminal 30 and extends from the outside of the housing 10 to the housing portion 13 in an electrically independent state with respect to the second fixed contact terminal 40.

Specifically, the second movable contact side terminal 50 extends from the fourth side wall 114 of the base 11 along the short direction of the base 11 away from the third side wall 113 to the outside of the housing 10; And an inner terminal 502 connected to an end of the housing 501 on the fourth side wall 112 side and extending in the direction from the first side wall 111 to the second side wall 112 along the longitudinal direction of the base 11 from the fourth side wall 114 It consists of

As shown in FIG. 2, a second movable contact piece 51 is provided at an end portion 503 of the inner terminal 502 of the second movable contact-side terminal 50 on the second sidewall 111 side. The second movable contact piece 51 is disposed in the housing portion 13 adjacent to the first movable contact piece 31 in the thickness direction of the first movable contact piece 31 (that is, the short direction of the base 11). It extends from the end portion 503 of the side terminal 50 toward the second fixed contact side terminal 40. Also, as an example, the second movable contact piece 51 is a plate-like laminate in which three elastically deformable rectangular plate members having conductivity are overlapped in the plate thickness direction, similarly to the first movable contact piece 31. The plate surface of one end portion in the longitudinal direction is fixed in contact with the plate surface of the end portion 503 of the inner terminal 502 of the second movable contact terminal 50. The second movable contact portion 52 is fixed to the surface of the other end of the second movable contact piece 51 in the longitudinal direction opposite to the fourth side wall 114 of the base 11. The second movable contact portion 52 is disposed to face the second fixed contact portion 41, and the second movable contact piece 51 is elastically deformed to shorten the base 11 with respect to the second fixed contact portion 41. It contacts or breaks along the hand direction.

In addition, a curve that protrudes in a U-shape toward the fourth side wall 114 of the base 11 between the second movable contact portion 52 of the second movable contact piece 51 and the end portion 503 of the second movable contact side terminal 50 The part 53 is provided. The curved portion 53 can absorb and reduce the amount of bending of the second movable contact piece 51 when the second movable contact piece 51 is elastically deformed, and can ensure smooth operation characteristics.

Further, as shown in FIG. 2, the electromagnetic relay 1 includes the drive unit 2 including the electromagnet unit 60, the pivot block 70, the insulating first movable member 90, and the insulating second movable member 100. There is. The drive unit 2 is housed in the housing portion 13 of the housing 10.

The electromagnet part 60 is arrange | positioned in the position adjacent to the 2nd side wall 112 of the accommodating part 13, as shown in FIG. The electromagnet unit 60 is formed on the outer surface of the coil 61 from both axial ends of the coil 61 wound around the winding central axis CL1 extending in the longitudinal direction of the base 11 and the electromagnet unit 60 extending the winding central axis CL1. It has a plate-like first yoke 62 and a plate-like second yoke 63 extending respectively along it. The first yoke 62 and the second yoke 63 are disposed between the first movable contact piece 31 and the second movable contact piece 51 and the electromagnet unit 60. Although not shown, the electromagnet unit 60 is provided with a coil terminal, and currents of two different directions can be selectively supplied to the electromagnet unit 60 through the coil terminal.

As shown in FIG. 3, the first yoke 62 extends from the third sidewall 113 to the fourth sidewall 114 along the first sidewall 111 of the base 11 from the end on the first sidewall 111 side in the axial direction of the electromagnet unit 60. A connection 621 extending in a direction (ie, downward in FIG. 3) and a first sidewall 111 from the first side wall 111 along the extending direction of the winding central axis CL1 from the distal end of the connection 621 away from the electromagnet 60. A suction portion 622 extends in a direction toward the side wall 112 (that is, rightward in FIG. 3).

As shown in FIG. 3, the second yoke 63 extends from the third sidewall 113 to the fourth sidewall 114 along the second sidewall 112 of the base 11 from the end on the second sidewall 112 side in the axial direction of the electromagnet unit 60. The direction from the second side wall 112 to the first side wall 111 along the extending direction of the connecting portion 631 extending in the direction and the tip of the connecting portion 631 remote from the electromagnet portion 60 along the extending direction of the winding central axis CL1 And a suction portion 632 extending in the left direction of FIG.

The suction portion 622 of the first yoke 62 and the suction portion 632 of the second yoke 63 extend the winding central axis CL1 in a plan view along the height direction of the base 11 (that is, the penetrating direction in FIG. 3). The center lines extending along the existing direction are arranged to coincide with each other. That is, the distal end surface of the suction portion 622 of the first yoke 62 and the distal end surface of the suction portion 632 of the second yoke 63 are opposed to each other, and a rotational block arrangement space in which the rotational block 70 can be disposed therebetween 64 are provided.

Specifically, as shown in FIG. 3, the first yoke 62 has a first facing surface 623, and the second yoke 63 has a second facing surface 633. A pivoting block disposition space 64 is provided between the first opposing surface 623 and the second opposing surface 633.

As shown in FIG. 4, first positioning protrusions 625 (first positioning protrusions) are provided at both ends in the height direction (that is, the vertical direction in FIG. 4) of the base 11 of the suction portion 622 of the first yoke 62. An example of the part) and a second positioning protrusion 626 are provided. In addition, third positioning protrusions 635 (an example of a second positioning protrusion) and a fourth positioning protrusion 636 are provided at both ends in the height direction of the base 11 of the suction portion 632 of the second yoke 63. There is. As shown in FIG. 2, the first positioning protrusion 625 and the third positioning protrusion 635 have a substantially rectangular shape in a plan view along the height direction of the base 11, and the first penetration of the fixing plate 80 described later The holes 81 and the second through holes 82 are provided to be engageable with each other. In addition, as shown in FIG. 4, the second positioning projection 626 and the fourth positioning projection 636 are provided with first recesses 14 respectively provided on both ends of the bottom surface 131 of the housing 13 in the lateral direction of the base 11 and The second recess 15 is provided to be fittable.

The pivot block 70 is, as shown in FIG. 3, a pivot block disposition space 64 of the housing portion 13 pivotably about a pivot axis 71 extending in the height direction of the base 11 with respect to the base 11 of the housing 10. And rotate in different directions with respect to the base 11 of the housing 10 according to the direction of the current supplied to the electromagnet unit 60. Specifically, the pivoting block 70 is disposed on the block housing 72 so as to face the block housing 72 (shown in FIG. 2), a permanent magnet 73 provided inside the block housing 72, and the permanent magnet 73. It has the plate-like 1st iron piece 74 and the plate-like 2nd iron piece 75 which were fixed. Further, a first arm 721 extending toward the first side wall 111 of the base 11 is provided at an end on the fourth side wall 114 side and the first side wall 111 side of the block housing 72, and the fourth side wall of the block housing 72 A second arm 722 extending toward the second side wall 112 of the base 11 is provided at the end on the 114 side and the second side wall 112 side.
ing.

The block housing 72 is made of, for example, a resin, and as shown in FIG. 4, a main body 723 covering the permanent magnet 73, a part of the first iron piece 74, and a part of the second iron piece 75 A pivot shaft 76 protrudes from both end portions of the base 11 in the height direction 723. The pivot shaft 76 extends along the height direction of the base 11, and the center line in the extension direction constitutes the pivot shaft 71 of the pivot block 70.

One first end 761 (i.e., the lower end in FIG. 4) of the rotation shaft 76 in the extension direction of the rotation shaft 76 is substantially in the center of the base 11 of the bottom surface 131 of the housing 13 in the short direction. Is rotatably supported by a bearing portion 16 provided on the In addition, the other second end 762 (that is, the upper end in FIG. 4) of the pivoting shaft 76 in the extending direction of the pivoting shaft 76 is pivotable to the shaft hole 83 of the fixing plate 80 described later. It is supported by That is, the turning block 70 is rotatably supported by the base 11 of the housing 10 and the fixing plate 80 fixed to the first yoke 62 and the second yoke 63 of the electromagnet unit 60.

The fixed plate 80 has a substantially rectangular plate shape as shown in FIG. 2, and the contact / separation direction in which the first movable contact portion 32 contacts or separates from the first fixed contact portion 21 (ie, the short of the base 11 Extending in a direction (ie, the longitudinal direction of the base 11) intersecting with the extending direction of the pivot shaft 71 (that is, the penetrating direction in FIG. 2) through the first yoke 62 and the second yoke 63). Is fixed to the housing 10. That is, in the pivot shaft portion 76 of the pivot block 70, the contact / separation direction in which the first movable contact portion 32 contacts or separates from the first fixed contact portion 21 and the extension direction of the fixed plate 80 It extends in the direction intersecting the 2)

Specifically, as shown in FIG. 4, the fixed plate 80 is disposed so that the plate surface intersects with the pivot axis 71, and as shown in FIG. 5, the longitudinal direction of the fixed plate 80 (ie A first through hole 81 and a second through hole 82 respectively provided at both end portions in the left and right direction of 5 and penetrating in the thickness direction, and an axial hole 83 provided substantially at the center of the fixing plate 80 in the longitudinal direction have.

As shown in FIG. 5, the first through holes 81 have a rectangular shape (rectangular in this embodiment) in a plan view along the thickness direction of the fixed plate 80 (that is, the penetrating direction in FIG. 5). And its longitudinal direction coincides with the longitudinal direction of the fixing plate 80. A pair of first through holes 81 extending in the arrangement direction of the first through holes 81, the second through holes 82, and the axial holes 83 (that is, the longitudinal direction of the fixing plate 80, hereinafter simply referred to as the arrangement direction). On the lateral inner surface 811 on the third side wall 113 side (that is, the upper side in FIG. 5) of the lateral

inner surfaces

811 and 812, a first locking projection 84 is provided which protrudes from the lateral inner surface 811 to the opposing lateral inner surface 812 . Further, the first

longitudinal holes

813 and 814 of the first through holes 81 extending in a direction crossing (for example, orthogonal to) the arrangement direction (that is, the short direction of the fixing plate 80 (ie, the vertical direction in FIG. 5)) On the longitudinal inner surface 813 on the side of the side wall 111 (that is, the left side in FIG. 5), a second locking projection 85 is provided which protrudes from the longitudinal inner surface 813 to the opposing longitudinal inner surface 814. The two

positioning protrusions

84 and 85 allow the first positioning protrusion 625 of the first yoke 62 to be locked in the arrangement direction and the direction intersecting the arrangement direction (that is, the longitudinal direction and the short direction of the fixing plate 80). And their positions in the direction of arrangement and in the direction intersecting the direction of arrangement are regulated.

In addition, the lateral inner surface 812 of the first through hole 81 on the fourth side wall 114 side (ie, the lower side in FIG. 5) is a first reference plane which is a reference of the position of the first positioning projection 625 of the first yoke 62. Configured.

As shown in FIG. 5, the second through hole 82 has a rectangular shape (i.e., a rectangular shape) in a plan view along the thickness direction of the fixing plate 80, similarly to the first through hole 81, The direction coincides with the longitudinal direction of the fixing plate 80. On a lateral inner surface 821 on the third side wall 113 side of the pair of lateral

inner surfaces

821 and 822 of the second through holes 82 extending in the arrangement direction, a third locking projection 86 projecting from the lateral inner surface 821 to the opposing lateral inner surface 822 It is provided. The third positioning projection 635 of the second yoke 63 is locked by the one locking projection 86 in the direction intersecting the arrangement direction (that is, the short direction of the fixing plate 80) and intersects the arrangement direction. Position in the direction is regulated.

Further, the horizontal inner surface 822 on the fourth side wall 114 side of the second through hole 82 constitutes a second reference plane which is a reference of the position of the third positioning projection 635 of the second yoke 63. The first reference plane 812 of the first through hole 82 and the second reference plane 822 of the second through hole 82 are the center lines of the fixing plates 80 extending in the arrangement direction in a plan view along the thickness direction of the fixing plate 80 They are located on the same side with respect to CL2 (that is, on the fourth sidewall 114 side than the center line CL2), and on the same straight line L extending in the arrangement direction.

Furthermore, in the second through hole 82, the edge far from the axial hole portion 83 in the arrangement direction (that is, a direction crossing (for example, orthogonal to) the arrangement direction (that is, the short direction of the fixing plate 80) Extending in the array direction from the pair of vertical

inner surfaces

823 and 824 of the second through holes 82 extending in the second side wall 112 and communicating the second through holes 82 with the outside of the fixing plate 80 A holding groove portion 87 capable of holding the position of the moving shaft portion 76 in the arrangement direction is provided. The holding groove portion 87 is provided at an end of the horizontal inner surface 821 side (that is, the third side wall 113 side) facing the second reference plane 822 in the vertical inner surface 824 on the second side wall 112 side of the second through hole 82 There is.

Further, as shown in FIG. 6, the arrangement of the pivot shaft 76 along with the holding groove 87 between the pair of vertical

inner surfaces

823 and 824 in the second through hole 82 and the third positioning projection 635 of the second yoke. First holding gaps 88 capable of holding the position in the direction are provided. In the electromagnetic relay 1, the second reference plane 822 and the third locking projection 86 intersect (for example, orthogonally) with the arrangement direction of the third positioning projection 635 of the second yoke 63 connected to the second through hole 82. The allowable range of the position of the third positioning projection 635 of the second yoke 63 with respect to the fixing plate 80 in the arrangement direction is expanded by the holding groove 87 and the first holding gap 88 while defining the position in the direction. As a result, even if the positions of the first positioning projection 625 of the first yoke 62 and the third positioning projection 635 of the second yoke 63 are different from the design due to tolerances or the like, The positional accuracy of the shaft hole 83 of the fixing plate 80 with respect to the bearing 16 can be kept approximately constant high. As a result, the position of the rotation shaft 76 of the rotation block 70 becomes substantially constant, and the rotation shaft 71 of the rotation block 70 is not inclined in the arrangement direction with respect to the direction orthogonal to the bottom surface 131 of the housing 13. The pivot block 70 can be rotatably supported.

As shown in FIG. 5, the axial hole portion 83 has an oval shape in which the minor axis extends in the arrangement direction and the major axis extends in the direction orthogonal to the arrangement direction when viewed from the thickness direction of the fixed plate 80 There is. The shaft hole portion 83 is provided so as to be able to insert the pivot shaft portion 76 of the block housing 72 which constitutes the pivot shaft 71 of the pivot block 70.

As shown in FIG. 7, in the state where the pivot shaft 76 of the pivot block 70 is inserted and the pivot shaft 76 is supported, the inside of the shaft hole 83 is perpendicular to the arrangement direction. A second holding gap 89 is provided between the circumferential surface and the outer circumferential surface of the pivot shaft 76. In the electromagnetic relay 1, the allowable range of the position of the pivot shaft 76 of the pivot block 70 with respect to the fixed plate 80 in the direction perpendicular to the arrangement direction of the fixed plates 80 is expanded by the second holding gap 89. Thereby, even if the positions of the first positioning projection 625 of the first yoke 62 and the third positioning projection 635 of the second yoke 63 are different from the design due to tolerance or the like, the direction orthogonal to the arrangement direction The positional accuracy of the shaft hole 83 of the fixing plate 80 with respect to the bearing 16 of the base 11 in the above can be kept approximately constant high. As a result, the pivot block 70 can be rotatably supported without the pivot shaft 71 of the pivot block 70 being inclined in the direction orthogonal to the arrangement direction with respect to the direction orthogonal to the bottom surface 131 of the housing portion 13.

The first iron piece 74 has a first end 741 protruding from the permanent magnet 73 toward the first yoke 63 and a second end 742 protruding from the permanent magnet 73 toward the second yoke 63. The suction portion 622 of the first yoke 62 and the suction portion 632 of the second yoke 63 are disposed on the third side wall 113 side.

The second iron piece 75 has a first end 751 protruding from the permanent magnet 73 toward the first yoke 63 and a second end 752 protruding from the permanent magnet 73 toward the second yoke 63. The suction portion 622 of the first yoke 62 and the suction portion 632 of the second yoke 63 are disposed on the fourth side wall 114 side.

A first yoke 62 is disposed between the first ends 741 and 751 of the first iron piece 74 and the second iron piece 75, and the

first end

741 or 751 of any one of the first iron piece 74 and the second iron piece 75. Is configured to contact the first yoke 62 in the turning direction of the turning block 70. In addition, the second yoke 63 is disposed between the second ends 742 and 752 of the first iron piece 74 and the second iron piece 75, and the second end 742 of one of the first iron piece 74 and the second iron piece 75. 752 are configured to contact the second yoke 63 in the rotation direction of the rotation block 70.

As shown in FIG. 2, the first movable member 90 is connected to the first movable contact piece 31 and the first arm portion 721 of the pivoting block 70, and in accordance with the pivoting direction of the pivoting block 70. It moves to elastically deform the first movable contact piece 31 to bring the first movable contact portion 32 into contact with or separate from the first fixed contact portion 21.

Specifically, the first movable member 90 is in the contact / separation direction in which the first movable contact portion 32 contacts or separates from the first fixed contact portion 21 when the pivoting block 70 rotates (ie, the short side of the base 11 Can be converted into linear motion in the direction (vertical direction in FIG. 2), and is connected to the end of the first arm 721 of the pivot block 70 while allowing the pivot block 70 to pivot. The second movable contact piece 31 is connected to the end on the first side wall 111 side (that is, the end on the left side in FIG. 2) in the extending direction of the first movable contact piece 31. That is, the first movable member 90 is moved in the contact and separation direction by the rotation of the rotation block 70, and the end on the first side wall 111 side in the extension direction of the first movable contact piece 31 is the first movable contact portion It moves in the contact / separation direction in which 32 contacts or separates from the first fixed contact portion 21.

As shown in FIG. 2, the second movable member 100 is connected to the second movable contact piece 51 and the second arm 722 of the pivot block 70, and in accordance with the pivoting direction of the pivot block 70. The movable contact piece 51 is moved to elastically deform and the second movable contact portion 52 is brought into contact with or separated from the second fixed contact portion 41.

Specifically, in the second movable member 100, the contact / separation direction in which the second movable contact portion 52 contacts or separates from the second fixed contact portion 41 when the second movable contact portion 52 rotates (ie, the vertical direction in FIG. 2) And is connected to the end of the second arm 722 of the pivot block 70 while allowing the pivot block 70 to pivot, and the second movable contact piece 51 It is connected to the end on the side of the second side wall 112 in the extending direction (that is, the end on the right side in FIG. 2). That is, the second movable member 100 is moved in the contact and separation direction by the rotation of the rotation block 70, and the end on the second side wall 112 side in the extension direction of the second movable contact piece 51 is the second movable contact portion The second fixed contact portion 41 is moved in the contacting / separating direction in which it contacts or separates.

In the electromagnetic relay 1, the operating state shown in FIG. 2 (ie, the first end 751 of the second iron piece 75 of the pivot block 70 contacts the suction portion 622 of the first yoke 62, When the second end 742 of the first iron piece 74 contacts the suction portion 632 of the second yoke 63, the first movable contact portion 32 and the first fixed contact portion 21 contact each other, and the second movable contact portion 52 and the second movable contact portion 52 2) A current in a predetermined direction (for example, the A direction in FIG. 2) is supplied to the electromagnet portion 60 of the electromagnetic relay 1 in a state in which the fixed contact portion 41 contacts), and the rotation block 70 is rotated by the rotation block 70 When viewed from the extending direction of the shaft 71, it is rotated clockwise. Then, with the rotation of the rotation block 70, the

respective arm portions

721 and 722 also rotate clockwise, and the first movable member 90 is moved toward the fourth side wall 114 of the base 11, thereby the first movable contact portion 32 is separated from the first fixed contact portion 21 and the second movable member 100 is moved toward the third side wall 113 of the base 11 so that the second movable contact portion 52 is separated from the second fixed contact portion 41. Let As a result, the electromagnetic relay 1 returns from the operating state (that is, the first end 741 of the first iron piece 74 of the pivot block 70 contacts the suction portion 622 of the first yoke 62, The second end 752 of the second iron piece 75 contacts the suction portion 632 of the second yoke 63 to separate the first movable contact portion 32 from the first fixed contact portion 21 and the second movable contact portion 52 2) The fixed contact portion 41 is in the state of being separated and in contact with each other.

In the electromagnetic relay 1 in the operating state, the first movable contact piece 31 is disposed on one side (for example, the left side in FIG. 2) of the extending direction of the first movable contact piece 31 intersecting in the contact and separation direction. The first fixed contact terminal 20 or the first movable contact terminal 30 (here, the first fixed contact terminal 20) is a terminal to which current is supplied. Further, the second fixed contact side terminal 40 or the second movable contact disposed on the other side (for example, the right side in FIG. 2) of the first movable contact piece 31 with respect to the second movable contact piece 51 The side terminal 50 (here, the second fixed contact side terminal 40) is a terminal to which current is supplied. That is, in the electromagnetic relay 1, when conducting electricity, the conduction path formed by the first fixed contact side terminal 20, the first movable contact side terminal 30, and the first movable contact piece 31, and the second fixed contact side terminal Currents in opposite directions flow through the conduction path constituted by the second movable contact 40 and the second movable contact side terminal 50 and the second movable contact piece 51.

Further, the electromagnet block 60 of the electromagnetic relay 1 in the return state is supplied with a current in a direction different from the predetermined direction (for example, the B direction in FIG. 2) to make the pivot block 70 a pivot shaft 71 of the pivot block 70. It rotates counterclockwise as viewed from the extending direction. Then, with the rotation of the pivot block 70, the

respective arm portions

721 and 722 also rotate counterclockwise to move the first movable member 90 toward the third side wall 113 of the base 11, and thereby the first movable contact The second movable member 52 is moved to the second fixed contact portion 41 by bringing the portion 32 into contact with the first fixed contact portion 21 and moving the second movable member 100 toward the fourth side wall 114 of the base 11. Contact to the other side.

In the electromagnetic relay 1, the first positioning projection 625 (that is, the first positioning projection) of the first yoke 62 and the third positioning projection 635 (that is, the second positioning projection) of the second yoke 63 are A fixing plate 80 fixed to the base 11 of the housing 10 and rotatably supporting the turning block 70 with the base 11 of the housing 10 is provided. A fixing plate 80 has an axial hole 83 supporting one end of the rotating shaft 76 of the rotating block 70, and a third positioning projection 635 of the second yoke 63 passing through the fixing plate 80 in the thickness direction. The second through holes 82 extend in the direction in which the shaft holes 83 and the second through holes 82 are arranged, and the second through holes 82 and the outside of the fixing plate 80 are formed. A holding groove 87 is provided for communicating the two. The third positioning of the second yoke 63 with respect to the fixing plate 80 in the arrangement direction while restricting the position in the direction intersecting the arrangement direction of the third positioning projections 635 connected to the second through holes 82 by the holding groove portions 87. The positional tolerance of the pivot shaft 76 of the pivot block 70 with respect to the housing 10 (i.e., the bearing 16 of the housing 13) in the arrangement direction can be kept approximately constant high by expanding the allowable range of the position of the projection 635 it can. As a result, the position of the pivot shaft 76 of the pivot block 70 becomes substantially constant, and the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be realized.

The axial hole portion 83 has an oval shape in which the minor axis extends in the arrangement direction and the major axis extends in the direction orthogonal to the arrangement direction when viewed from the thickness direction of the fixing plate 80. A second holding gap 89 is formed between the inner peripheral surface of the shaft hole 83 and the outer peripheral surface of the pivot shaft 76 in the direction orthogonal to the arrangement direction by the shaft hole 83. The second holding gap 89 widens the allowable range of the position of the pivot shaft portion 76 of the pivot block 70 with respect to the fixed plate 80 in the direction orthogonal to the array direction of the fixed plates 80, and in the direction orthogonal to the array direction. The positional accuracy of the shaft hole 83 of the fixing plate 80 with respect to the housing 10 (i.e., the bearing 16 of the base 11) can be kept approximately constant high. As a result, the position of the pivot shaft 76 of the pivot block 70 becomes substantially constant, and the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be realized.

Further, the first yoke 62 has the first positioning projection 625, and the fixing plate 80 is arranged to sandwich the shaft hole 83 together with the second through hole 82, and the first positioning projection of the first yoke 62 625 is connected, and the first positioning protrusion 625 of the first yoke 62 has a first through hole 81 for restricting the arrangement direction and the position in the direction intersecting the arrangement direction. Thereby, the third positioning projection 635 of the second yoke 63 with respect to the fixing plate 80 in the arrangement direction is regulated while restricting the position of the third positioning projection 635 connected to the second through hole 82 in the direction crossing the arrangement direction. The positional accuracy of the pivot shaft 76 of the pivot block 70 with respect to the housing 10 in the arrangement direction can be maintained substantially constant and high only by expanding the allowable range of the position of. That is, the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be easily realized.

Further, one of the pair of lateral

inner surfaces

811 and 812 of the first through hole 81 constitutes a first reference plane 812 which becomes a reference of the position of the first positioning projection 625 of the first yoke 62, and the second through hole 82 One of the pair of lateral

inner surfaces

821 and 822 constitutes a second reference plane 822 which is a reference of the position of the third positioning projection 635 of the second yoke 63, and the first reference plane 812 and the second reference plane When viewed from the thickness direction of the fixing plate 80, the positions 822 are located on the same side with respect to the center line CL2 of the fixing plate 80 extending in the arrangement direction, and on the same straight line L extending in the arrangement direction. As a result, the positional accuracy of the fixing plate 80 with respect to the first yoke 62 and the second yoke 63 in the direction intersecting the arrangement direction can be kept approximately constant and high. As a result, the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be realized.

Further, the other end of the pair of horizontal

inner surfaces

821 and 822 opposite to the second reference plane 822 at the side of the holding groove 87 away from the first through holes 81 of the pair of vertical

inner surfaces

823 and 824 of the second through holes 82 It is provided in the department. Thereby, the third positioning projection 635 of the second yoke 63 with respect to the fixing plate 80 in the arrangement direction is regulated while restricting the position of the third positioning projection 635 connected to the second through hole 82 in the direction crossing the arrangement direction. The influence on the accuracy of the second reference plane 822 of the second through hole 82 by widening the position tolerance of the second through hole 82 can be reduced. As a result, the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be realized more reliably.

Further, the other of the pair of lateral inner surfaces 811 facing the first reference plane 812 of the first through hole 81 projects from the other of the pair of lateral inner surfaces 811 of the first through hole 81 toward the first reference plane 812 A first locking projection 84 is provided for locking the first positioning projection 625 of the first yoke 62 in the direction crossing the arrangement direction, and one of the pair of vertical inner surfaces 813 of the first through hole 81 is a first through hole A second locking projection 85 is provided which protrudes from one 813 of the pair of longitudinal inner surfaces 81 toward the other 814 to lock the first positioning projection 625 of the first yoke 62 in the arrangement direction. Furthermore, on the other 821 of the pair of lateral inner surfaces facing the second reference plane 822 of the second through hole 82, the other 821 of the pair of lateral inner surfaces of the second through hole 82 protrudes toward the second reference plane 822 A third locking projection 86 for locking the third positioning projection 635 of the second yoke 63 is provided, and each of the pair of vertical

inner surfaces

823 and 824 of the second through hole 82 and the third positioning projection of the second yoke 63 A first holding gap 88 capable of holding the holding groove 87 and the position of the pivot shaft 76 in the arrangement direction is provided between 635 and 635. That is, the two

positioning protrusions

84 and 85 engage the first positioning protrusion 625 of the first yoke 62 in the arrangement direction and the direction intersecting the arrangement direction (ie, the longitudinal direction and the short direction of the fixing plate 80). And the third positioning projection connected to the second through hole 82 by the second reference plane 822 and the third locking projection 86 while the arrangement direction and the position in the direction crossing the arrangement direction are restricted. Tolerance of the position of the third positioning projection 635 of the second yoke 63 with respect to the fixing plate 80 in the arrangement direction by the holding groove 87 and the first holding gap 88 while restricting the position in the direction intersecting the arrangement direction of 635 Is spreading out. Thus, the positional accuracy of the pivot shaft 76 of the pivot block 70 with respect to the housing 10 in the arrangement direction can be kept approximately constant high, and the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be easily realized.

In the electromagnetic relay 1, the circuit constituted by the first fixed contact side terminal 20, the first movable contact side terminal 30, and the first movable contact piece 31, the second fixed contact side terminal 40, the second movable Although the contact side terminal 50 and the circuit comprised with the 2nd movable contact piece 51 are provided, it does not restrict to this. The number of circuits may be at least one. That is, at least one set of the fixed contact side terminal, the movable contact side terminal, and the first movable contact piece may be provided.

Moreover, in the said electromagnetic relay 1, although the 1st through-hole 81 which can be connected to the 1st positioning projection part 625 of the 1st yoke 62 is provided, it does not restrict to this. For example, instead of the first through hole 81, a concave portion connectable to the first positioning protrusion 625 may be provided, or the end of the fixing plate 80 on the first side wall 111 side may be fixed to the housing 10 .

Further, the shaft hole portion 83 is not limited to the oval shape, but may be a perfect circular shape into which the pivot shaft portion 76 of the pivot block 70 can be inserted.

In addition, the first through holes 81 and the second through holes 82 are not limited to the rectangular shape, and can be connected to the first positioning projections 625 of the first yoke 62 and the third positioning projections 635 of the second yoke 63. I hope there is. For example, when the first positioning projection is circular as viewed from the direction along the extension direction of the pivot axis of the pivot block, the first through hole is a circle into which the first positioning projection can be inserted. It may be shaped.

Further, the first reference plane of the first through hole 81 and the second reference plane of the second through hole 82 may be located on a straight line extending in the arrangement direction, for example, the first reference plane of the first through hole 81 The lateral inner surface 811 on the side of the three side walls 113 may be a first reference plane, and the lateral inner surface 821 on the side of the third side wall 113 of the second through hole 82 may be a second reference plane. In this case, the first locking projection 84 is provided on the horizontal inner surface 812 of the first through hole 81 on the fourth sidewall 114 side, and the third locking projection 86 is on the horizontal inner surface 822 of the second through hole 82 on the fourth sidewall 114 side. It should be provided in

Further, the holding groove portion 87 is the third side wall 113 side of the longitudinal inner surface 824 on the second side wall 112 side of the pair of longitudinal

inner surfaces

823 and 824 of the second through holes 82 extending in the direction intersecting the arrangement direction of the second through holes 82. It is not limited to the case of being provided at the end of For example, it may be provided on the fourth side wall 114 side of the vertical inner surface 824 on the second side wall 112 side of the second through hole 82. In this case, it is preferable that the horizontal inner surface 811 on the third side wall 113 side of the first through hole 81 be a first reference plane, and the horizontal inner surface 821 on the third side wall 113 side of the second through hole 82 be a second reference plane. . Further, a holding groove may be provided on the longitudinal inner surface 816 on the first side wall 811 side of the first through hole 81. In this case, a locking projection is provided on one of the pair of horizontal

inner surfaces

821 and 822 of the second through hole 82 and one of the pair of vertical

inner surfaces

823 and 824, and one of the pair of horizontal

inner surfaces

811 and 812 of the first through hole 81. Can be provided with a locking projection.

In addition, each of the first positioning projection 625 of the first yoke 62 and the third positioning projection 635 of the second yoke 63 has a first locking projection 84, a second locking projection 85, and a third locking projection. You may provide the recessed part which can insert 85. Thereby, floating of the fixed plate 80 in the thickness direction of the fixed plate 80 can be prevented.

While the various embodiments of the present disclosure have been described in detail with reference to the drawings, various aspects of the present disclosure will be finally described. In the following description, as an example, reference numerals will be attached.

The electromagnetic relay 1 of the first aspect of the present disclosure is
A box-shaped insulating housing 10 having a housing 13 therein;
Plate-like fixed

contact side terminals

20, 40 fixed to the housing 10 and extending from the outside of the housing 10 to the accommodation portion 13 and having

stationary contact portions

21, 41 located in the accommodation portion 13;
A plate-like movable contact side fixed to the housing 10 and extending from the outside of the housing 10 to the housing portion 13 and disposed electrically independent of the fixed

contact side terminals

20 and 40

Terminals

30, 50,
The movable contact portion 32 is disposed in the housing portion 13 and electrically connected to the movable

contact side terminals

30 and 50, and has

movable contact portions

32 and 52 opposed to the fixed

contact portions

21 and 41, respectively.

Movable contact pieces

31, 51 which elastically deform so as to be capable of coming into contact with and separating from the fixed

contact portions

21, 41;
An electromagnet unit 60 disposed in the housing unit 13 and capable of selectively supplying current in different directions;
The

movable contact portions

32 and 52 are disposed in the housing portion 13 so as to be rotatable around a rotation shaft 71 extending in a direction intersecting a contact / separation direction in which the fixed

contact portions

21 and 41 contact or separate. A pivot block 70 which pivots in different directions with respect to the housing 10 in accordance with the direction of the current supplied to the electromagnet unit 60;
The

movable contact pieces

31 and 51 are disposed in the housing portion 13 and connected to the

movable contact pieces

31 and 51 and the pivoting block 70, and are moved according to the pivoting direction of the pivoting block 70.

Movable members

90, 100 for causing the

movable contact portions

32, 52 to contact with or separate from the fixed

contact portions

21, 41 by elastically deforming
A fixing plate 80 extends in a direction intersecting the contact and separation direction and the extending direction of the rotation shaft 71 and is fixed to the housing 10 to rotatably support the rotation block 70 together with the housing 10. Equipped
The electromagnet unit 60 includes a first yoke 62 and a second yoke 63 disposed between the

movable contact pieces

31 and 51 and the electromagnet unit 60 and having opposing

surfaces

623 and 633 facing each other, Between the facing

surfaces

623, 633, a pivot block arrangement space 64 in which the pivot block 70 is disposed is provided,
The pivot block 70 has a pivot shaft portion 76 which extends in a direction intersecting the contact and separation direction and the extension direction of the fixed plate 80 and which constitutes the pivot shaft 71,
The second yoke 63 has a positioning projection 635 projecting in one extending direction of the pivot shaft 76 from one side in the extension direction of the pivot shaft 76,
The housing portion 13 has a bearing portion 16 rotatably supporting one first end portion of the rotation shaft portion 76 in the extending direction,
The fixed plate 80 penetrates in the thickness direction of the fixed plate 80, and the shaft hole 83 for rotatably supporting the other second end of the rotating shaft 76 in the extending direction. And a through hole 82 to which the positioning projection 635 of the second yoke 63 is connected,
A direction in which the through hole 82 crosses the arrangement direction of the connected positioning projections 635 while allowing the connected positioning projections 635 to move in the arrangement direction of the axial holes 83 and the through holes 82 Extending in the arranging direction from the edge remote from the axial hole portion 83 in the arranging direction to communicate the through hole 82 with the outside of the fixing plate 80. And a holding groove 87 capable of holding the position of the rotation shaft 76 in the arrangement direction.

According to the electromagnetic relay 1 of the first aspect, the holding groove 87 fixes the axial position 83 of the positioning protrusion 635 connected and the position in the direction intersecting the arrangement direction of the through holes 82 while fixing in the arrangement direction. The allowable range of the position of the positioning projection 635 of the second yoke 63 with respect to the plate 80 is expanded, and the position of the rotation shaft 76 in the arrangement direction is held, and the rotation shaft 76 of the rotation block 70 with respect to the housing in the arrangement direction. Position accuracy can be kept substantially constant and high. As a result, the position of the pivot shaft 76 of the pivot block 70 becomes substantially constant, and the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be realized.

The electromagnetic relay 1 of the second aspect of the present disclosure is
The axial hole portion 83 has an oblong shape in which the minor axis extends in the arrangement direction and the major axis extends in the direction orthogonal to the arrangement direction when viewed from the thickness direction of the fixing plate 80.

According to the electromagnetic relay 1 of the second aspect, the allowable range of the position of the pivot shaft 76 of the pivot block 70 with respect to the fixed plate 80 in the direction orthogonal to the arrangement direction of the fixed plates 80 is expanded. By maintaining the position in the direction orthogonal to the arrangement direction, the positional accuracy of the shaft hole 83 of the fixing plate 80 with respect to the housing 10 in the direction orthogonal to the arrangement direction can be kept approximately constant. As a result, the position of the pivot shaft portion of the pivot block 70 becomes substantially constant, and an electromagnetic relay capable of exhibiting stable operation characteristics can be realized.

The electromagnetic relay 1 of the third aspect of the present disclosure is
The first yoke 62 has a first positioning projection 625 projecting in one extending direction of the pivot shaft 76 from one side in the extension direction of the pivot shaft 76,
The positioning protrusion of the second yoke 63 is a second positioning protrusion 635,
The fixing plate 80 is disposed so as to sandwich the shaft hole 83 together with the second through hole 82 which is the through hole, and the first positioning projection 625 of the first yoke 62 is connected thereto. The first positioning projection 625 of the first yoke 62 is provided with a first through hole 81 for restricting the arrangement direction and a direction in a direction intersecting the arrangement direction.

According to the electromagnetic relay 1 of the third aspect, the position of the

positioning projections

625 and 635 connected in the direction intersecting with the arrangement direction of the axial holes 83 and the through holes 82 is regulated, and the fixing plate 80 in the arrangement direction is fixed. The positional accuracy of the pivot shaft 76 of the pivot block 70 with respect to the housing 10 in the arrangement direction can be kept substantially constant only by widening the allowable range of the position of the positioning projection 635 of the second yoke 63. That is, the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be easily realized.

The electromagnetic relay 1 of the fourth aspect of the present disclosure is
Each of the first through holes 81 and the second through holes 82 extends in the arranging direction and a pair of horizontal

inner surfaces

811, 812, 821, 822, as viewed in the thickness direction of the fixing plate 80, in the arranging direction. A rectangular shape having a pair of longitudinal

inner surfaces

813, 814, 823, 824 extending in intersecting directions;
One of the pair of lateral

inner surfaces

811 and 812 of the first through hole 81 constitutes a first reference plane 812 which is a reference of the position of the first positioning projection 625 of the first yoke 62, and One of the pair of lateral

inner surfaces

823 and 824 of the two through holes 82 constitutes a second reference plane 822 which is a reference of the position of the second positioning projection 635 of the second yoke 63,
The first reference plane and the second reference plane extend in the arrangement direction on the same side with respect to the center line CL2 of the fixation plate 80 extending in the arrangement direction as viewed from the thickness direction of the fixation plate 80 It is located on the same straight line L.

According to the electromagnetic relay 1 of the fourth aspect, the positional accuracy of the fixing plate 80 with respect to the first yoke 62 and the second yoke 63 in the direction orthogonal to the arrangement direction can be kept substantially constant high. As a result, the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be realized.

The electromagnetic relay 1 of the fifth aspect of the present disclosure is
Of the pair of horizontal

inner surfaces

821 and 822 of the pair of vertical

inner surfaces

823 and 824 of the second through hole 82, the holding groove 87 faces the second reference plane 822 at the side far from the first through hole 81. It is provided at the other end.

According to the electromagnetic relay 1 of the fifth aspect, the position of the

positioning projections

625 and 635 connected to each other in the arrangement direction with respect to the fixing plate 80 in the arrangement direction is regulated while restricting the positions of the axial holes 83 and the through holes 82 in the arrangement direction. It is possible to reduce the influence on the accuracy of the second reference plane of the second through hole 82 by widening the allowable range of the position of the positioning projection 635 of the second yoke 63. As a result, the electromagnetic relay 1 capable of exhibiting stable operation characteristics can be realized more reliably.

The electromagnetic relay 1 of the sixth aspect of the present disclosure is
From the other 811 of the pair of horizontal inner surfaces of the first through hole 81 to the first reference flat surface 812 in the other 811 of the pair of horizontal inner surfaces facing the first reference plane 812 of the first through hole 81 A first locking protrusion 84 for locking the first positioning protrusion 625 of the first yoke 62 in a direction intersecting the arrangement direction;
One of the pair of longitudinal inner surfaces of the first through hole 81 protrudes from one of the pair of longitudinal inner surfaces 813 of the first through hole 81 toward the other 814 so that the first positioning of the first yoke 62 is performed. A second locking projection 85 is provided for locking the projection 625 in the arrangement direction,
In the other 821 of the pair of lateral inner surfaces opposite to the second reference plane 822 of the second through hole 82, from the other 821 of the pair of lateral inner surfaces of the second through hole 82 toward the second reference plane 822 And a third locking projection 86 for locking the second positioning projection 635 of the second yoke 63.
The arrangement of the pivot shaft 76 along with the holding groove 87 between each of the pair of longitudinal

inner surfaces

823 and 824 of the second through hole 82 and the second positioning projection 635 of the second yoke 63 A holding gap 88 capable of holding the position in the direction is provided.

According to the electromagnetic relay 1 of the sixth aspect, the position accuracy of the pivot shaft 76 of the pivot block 70 with respect to the housing 10 in the arrangement direction can be kept approximately constant high, and the electromagnetic relay 1 can exhibit stable operation characteristics. Can be easily realized.

In addition, the effect which each has can be show | played by combining suitably the arbitrary embodiment or modification of said various embodiment or modification. Further, a combination of the embodiments or a combination of the embodiments or a combination of the embodiments and the embodiments is possible, and a combination of the features in different embodiments or the embodiments is also possible.

While the present disclosure has been fully described in connection with the preferred embodiments with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such variations and modifications are to be understood as included within the scope of the present disclosure as set forth in the appended claims, unless they depart therefrom.

The electromagnetic relay of the present disclosure can be applied to, for example, a smart meter.

DESCRIPTION OF SYMBOLS 1 electromagnetic relay 2 drive unit 10 housing 11 base 111 1st side wall 112 2nd side wall 113 3rd side wall 114 4th side wall 12 cover 13 accommodation part 16 bearing part 20 1st fixed contact side terminal 201 outer terminal 202 inner terminal 21 1st Fixed contact portion 30 first movable contact side terminal 301 outer terminal 302 inner terminal 303 end 31 first movable contact piece 32 first movable contact portion 33 curved portion 40 second fixed contact side terminal 401 outer terminal 402 inner terminal 41 second Fixed contact portion 50 second movable contact side terminal 501 outer terminal 502 inner terminal 503 end 51 second movable contact piece 52 second movable contact portion 53 curved portion 60 electromagnet portion 61 coil 62 first yoke 621 connection portion 622 adsorption portion 623 First opposing surface 625 first positioning protrusion (an example of a first positioning protrusion)
626 second positioning projection 63 second yoke 631 connection section 632 suction section 633 second facing surface 635 third positioning projection (an example of second positioning projection)
636 Fourth positioning projection 64 Rotation block arrangement space 70 Rotation block 71 Rotation shaft 72 Block housing 721 First arm 722 Second arm 723 Main body 73 Permanent magnet 74 First iron piece 741 First end 742 2 end 75 second iron piece 751 first end 752 second end 76 rotating shaft 80 fixed plate 81 first through

holes

811, 812 horizontal

inner surface

813, 814 vertical inner surface 82 second through

holes

821, 822 horizontal

inner surface

823, 824 vertical inner surface 83 shaft hole 84 first locking projection 85 second locking projection 86 third locking projection 87 holding groove 88 first holding gap 89 second holding gap 90 first movable member 100 second Movable member CL1 Winding center axis CL2 Center line L Straight

Claims

A box-shaped insulating housing having a housing therein;
A plate-like fixed contact side terminal fixed to the housing, extending from the outside of the housing to the housing portion, and having a stationary contact portion located in the housing portion;
A plate-like movable contact-side terminal fixed to the housing, extending from the outside of the housing to the housing portion, and arranged electrically independent of the fixed contact-side terminal;
The movable contact portion is disposed in the housing portion and electrically connected to the movable contact side terminal, and has a movable contact portion facing the fixed contact portion, and the movable contact portion contacts and opens the fixed contact portion. A movable contact piece that can be elastically deformed;
An electromagnet unit disposed in the housing and capable of selectively supplying current in different directions;
The movable contact portion is disposed in the housing portion so as to be rotatable about a rotation axis extending in a direction crossing a contact / separation direction in which the movable contact portion contacts or separates from the fixed contact portion, and is supplied to the electromagnet portion A pivoting block which pivots in different directions with respect to the housing according to the direction of the current;
The movable contact piece is disposed in the housing portion and connected to the movable contact piece and the pivot block, and is moved according to the pivoting direction of the pivot block to elastically deform the movable contact piece. A movable member for bringing the fixed contact portion into contact with or separated from the fixed contact portion;
A fixing plate that extends in a direction intersecting with the contact and separation direction and the extending direction of the rotation shaft and is fixed to the housing and rotatably supports the rotation block with the housing;
The electromagnet block includes a first yoke and a second yoke respectively disposed between the movable contact piece and the electromagnet portion and having opposing surfaces facing each other, and the pivot block between the opposing surfaces. There is provided a pivot block arrangement space in which the
The pivot block has a pivot shaft portion extending in a direction intersecting with the contact and separation direction and the extension direction of the fixed plate to constitute the pivot shaft,
The second yoke has a positioning projection which protrudes in one extending direction of the pivot shaft from one of the extending directions of the pivot shaft,
The housing portion has a bearing portion which rotatably supports one first end portion of the rotation shaft portion in the extension direction of the rotation shaft portion,
The fixed plate includes an axial hole rotatably supporting the other second end of the rotating shaft in the extending direction, and a through hole extending in the thickness direction of the fixed plate. And a through hole to which the positioning protrusion is connected;
The through hole can restrict the position of the connected positioning protrusion in the direction crossing the arrangement direction while making the connected positioning protrusion movable in the arrangement direction of the shaft hole and the through hole. , And extends in the arranging direction from an edge remote from the axial hole in the arranging direction and communicates with the through hole and the outside of the fixing plate, The electromagnetic relay which has the holding groove part which can hold | maintain the position in the said arrangement | sequence direction of.
The electromagnetic relay according to claim 1, wherein the axial hole portion has an oval shape in which a minor axis extends in the arrangement direction and a major axis extends in the direction orthogonal to the arrangement direction when viewed from the thickness direction of the fixed plate. .
The first yoke has a first positioning projection which protrudes in one extending direction of the pivot shaft from one of the extending directions of the pivot shaft;
The positioning protrusion of the second yoke is a second positioning protrusion,
The fixing plate is disposed so as to sandwich the shaft hole together with the second through hole which is the through hole, and the first positioning projection of the first yoke is connected, and The electromagnetic relay according to claim 1 or 2, further comprising: a first through hole for restricting a position of the first positioning protrusion in the arrangement direction and a direction crossing the arrangement direction.
Each of the first through holes and the second through holes has a pair of horizontal inner surfaces extending in the arrangement direction and a pair of vertical inner surfaces extending in the direction intersecting the arrangement direction, as viewed from the thickness direction of the fixing plate It has a square shape with
One of the pair of lateral inner surfaces of the first through hole constitutes a first reference plane which is a reference of the position of the first positioning projection of the first yoke, and the pair of the second through holes One of the lateral inner surfaces constitutes a second reference plane which is a reference of the position of the second positioning projection of the second yoke,
The first reference plane and the second reference plane are on the same straight line extending in the arrangement direction on the same side with respect to the center line of the fixation plates extending in the arrangement direction when viewed from the thickness direction of the fixation plate The electromagnetic relay of claim 3 wherein the relay is located at
The holding groove portion is provided at the other end of the pair of horizontal inner surfaces facing the second reference plane at a side farther from the first through hole of the pair of vertical inner surfaces of the second through hole. The electromagnetic relay according to claim 4.
The other of the pair of lateral inner surfaces facing the first reference plane of the first through hole protrudes from the other of the pair of lateral inner surfaces of the first through hole toward the first reference plane. A first locking protrusion is provided for locking the first positioning protrusion of the yoke in a direction intersecting the arrangement direction,
One of the pair of longitudinal inner surfaces of the first through hole protrudes from one of the pair of longitudinal inner surfaces of the first through hole toward the other to arrange the first positioning projection of the first yoke. A second locking projection which locks in the direction;
The other of the pair of lateral inner surfaces facing the second reference plane of the second through hole protrudes from the other of the pair of lateral inner surfaces of the second through hole toward the second reference plane. A third locking projection is provided for locking the second positioning projection of the yoke,
The position of the pivoting shaft portion in the arrangement direction can be held together with the holding groove portion between each of the pair of longitudinal inner surfaces of the second through hole and the second positioning projection portion of the second yoke. The electromagnetic relay according to claim 4 or 5, wherein a holding gap is provided.