JP2019032946A - Electromagnetic relay - Google Patents

Abstract

To provide an electromagnetic relay of a plurality of poles capable of preventing an interphase short-circuit.SOLUTION: An electromagnetic relay comprises: a first housing part (14) housing a first conductive part (3); a second housing part (15) that is adjacent to the first housing part (14) in a contact and separation direction and houses a second conductive part (4); and a housing (10) that includes an insulation wall part (17) separating the first housing part (14) and the second housing part (15). The first housing part (14) includes: a first bottom surface (141) provided on the first housing part (14) side of one end part in a height direction of the insulation wall part (17); and a first opening part (142) provided on the first housing part (14) side of the other end part of the height direction of the insulation wall part (17), and the second housing part (15) includes a second bottom part (151) provided on the second housing part (15) side of the other end part of the height direction of the insulation wall part (17), and a second opening part (152) provided to the second housing part (15) of one end part of the height direction of the insulation wall part (17).SELECTED DRAWING: Figure 3

Description

  The present invention relates to a multi-pole electromagnetic relay.

  The electromagnetic relay disclosed in Patent Document 1 includes a rectangular box-shaped housing having an accommodating portion therein, and two fixed contact side terminals and two movable contact side terminals fixed to the housing. The accommodating portion of the electromagnetic relay includes two fixed contact portions provided on each fixed contact side terminal, two movable contact pieces provided on each movable contact side terminal, and each movable contact piece provided on each movable contact piece. Two movable contact portions arranged so as to face the fixed contact portion, an electromagnet portion whose polarity is reversed depending on the direction of the supplied current, and one rotation that rotates in different directions depending on the polarity of the electromagnet portion With blocks.

  In the electromagnetic relay, the housing includes a hollow box-shaped base having an opening on one surface and a cover that covers the opening. The electromagnetic relay includes a fixed contact side terminal, a movable contact side terminal, and a movable contact piece, and the movable contact piece is arranged in a direction in which the moving contact portion contacts or separates from the fixed contact portion within the base. Are formed.

US2009 / 0033446A1

  However, in the electromagnetic relay, the two circuits are respectively disposed in the two accommodating portions provided in the housing, but the two accommodating portions are opened adjacent to the opening side of the base, Inside the housing, the spaces are connected to each other on the opening side. For this reason, for example, if the electromagnetic relay is reduced in size, a sufficient insulation distance cannot be secured between the two circuits, and there is a possibility that the two circuits are short-circuited with each other.

  Then, this invention makes it a subject to provide the multi-pole electromagnetic relay which can prevent a short circuit between phases.

The electromagnetic relay of one embodiment of the present invention is
With a box-shaped insulating housing,
A plate-like first fixed contact side terminal fixed to the housing and extending from the outside of the housing to the inside of the housing and having a first fixed contact portion located inside the housing;
A plate-shaped first movable contact-side terminal fixed to the housing, extending from the outside of the housing to the inside of the housing, and electrically arranged independently of the first fixed contact-side terminal When,
The first movable contact portion is disposed inside the housing and is electrically connected to the first movable contact side terminal, and has a first movable contact portion facing the first fixed contact portion. A first movable contact piece that is elastically deformed in a contacting / separating direction to contact or separate from the first fixed contact portion;
The housing is fixed to the housing, extends from the outside of the housing to the inside of the housing, and is electrically independent of the first fixed contact side terminal and the first movable contact side terminal, and the housing A plate-like second fixed contact side terminal having a second fixed contact portion located in the inside,
It is fixed to the housing, extends from the outside of the housing to the inside of the housing, and is electrically connected to the first fixed contact side terminal, the first movable contact side terminal, and the second fixed contact side terminal. A plate-like second movable contact side terminal arranged independently,
The second movable contact portion is disposed inside the housing and is electrically connected to the second movable contact side terminal, and has a second movable contact portion facing the second fixed contact portion. A second movable contact piece that elastically deforms in the contact / separation direction with respect to the second fixed contact portion,
The first fixed contact side terminal, the first movable contact side terminal, and the first movable contact piece constitute a first conductive portion, the second fixed contact side terminal, the second movable contact side terminal, and The second movable contact piece constitutes a second conductive portion, and the first conductive portion and the second conductive portion are arranged side by side in the contact / separation direction,
The housing comprises:
A first housing part disposed inside the housing and housing the first conductive part;
A second housing portion disposed inside the housing in a state adjacent to the first housing portion in the contact / separation direction and housing the second conductive portion;
An insulating wall that partitions the first housing portion and the second housing portion;
A first bottom surface provided on a first housing portion side of one end portion in a height direction intersecting the contact / separation direction of the insulating wall portion, and the height direction of the insulating wall portion. And having a first opening provided on the first accommodating portion side of the other end,
A second bottom surface provided on the second housing portion side of the other end portion in the height direction of the insulating wall portion; and the one end portion of the insulating wall portion in the height direction. And a second opening provided on the second housing portion side.

  According to the electromagnetic relay of the above aspect, the housing is disposed inside the housing, and the interior of the housing is adjacent to the first housing portion in the contact / separation direction with the first housing portion housing the first conductive portion. And a second accommodating part that accommodates a part of the second conductive part, and an insulating wall part that partitions the first accommodating part and the second accommodating part. Moreover, the 1st accommodating part is provided in the 1st bottom face provided in the one end part of the height direction which cross | intersects the contact / separation direction of an insulating wall part, and the 1st provided in the other end part of the height direction of an insulating wall part. A second bottom surface provided at the other end portion in the height direction of the insulating wall portion and a second opening provided at one end portion in the height direction of the insulating wall portion. Part. That is, since the first opening of the first housing portion and the second opening of the second housing portion open in opposite directions in the height direction of the insulating wall portion, The spatial distance and the extended surface distance between the first accommodating part and the second accommodating part as compared to the electromagnetic relay in which the two accommodating parts are opened adjacent to each other in the same direction in the height direction of the insulating wall part Can be increased. As a result, a sufficient insulation distance can be secured between the first conductive part accommodated in the first accommodating part and the second conductive part accommodated in the second accommodating part, and the first conductive part and the second conductive part can be secured. It is possible to prevent a short circuit between the two parts.

The perspective view of the electromagnetic relay of one Embodiment of this invention. The perspective view seen from the direction different from FIG. 1 of the electromagnetic relay of FIG. Sectional drawing along the III-III line of FIG. Sectional drawing along the III-III line | wire of FIG. 1 of the state which removed the 1st cover and the 2nd cover. The top view of the state which removed the 1st cover of the electromagnetic relay of FIG. The bottom view of the state which removed the 2nd cover of the electromagnetic relay of FIG. The top view for demonstrating the drive unit of the electromagnetic relay of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, terms indicating specific directions or positions (for example, terms including “up”, “down”, “right”, “left”) are used as necessary. Is for facilitating understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of these terms. Further, the following description is merely illustrative in nature and is not intended to limit the present invention, its application, or its use. Furthermore, the drawings are schematic, and the ratios of dimensions and the like do not necessarily match the actual ones.

  As shown in FIG. 1, an electromagnetic relay 1 according to an embodiment of the present invention includes a box-shaped insulating housing 10, 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.

  The first fixed contact side terminal 20, the first movable contact side terminal 30, the second fixed contact side terminal 40, and the second movable contact side terminal 50 are each a substantially L-shaped rectangular plate whose middle portion in the longitudinal direction is bent. And has electrical conductivity. Further, 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. The ends 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 outside of the housing 10 are arranged in a substantially straight line.

  As shown in FIGS. 1 and 2, the housing 10 includes a substantially rectangular box-shaped base 11 and substantially rectangular plate-shaped first cover 12 and second cover 13, as shown in FIGS. 3 and 4. In addition, the first housing portion 14, the second housing portion 15, and the drive unit housing portion 16 are provided therein.

  As shown in FIGS. 3 and 4, each of the first housing portion 14, the second housing portion 15, and the drive unit housing portion 16 is formed in the short direction of the base 11 (that is, the horizontal direction in FIGS. 3 and 4). ), The second housing portion 15, the first housing portion 14, and the drive unit housing portion 16 are arranged in this order from the fourth side wall 114 toward the third side wall 113. That is, the first accommodating portion 14 is disposed adjacent to the second accommodating portion 15 in the short direction of the base 11, and the drive unit accommodating portion 16 is disposed on the base 11 with respect to the second accommodating portion 15. It arrange | positions adjacent to the other side of the 1st accommodating part 14 in a transversal direction.

  As shown in FIG. 5, the first insulating wall portion 17 and the second insulating wall portion 18 respectively extend in the longitudinal direction of the base 11 and are arranged side by side in the short direction of the base 11. The first end portions 171 and 181 (that is, the upper end portions in FIGS. 3 and 4) are connected to each other by a plate-like third insulating wall portion 191, and the end portion of the base 11 on the second side wall 112 side in the longitudinal direction The fourth insulating walls 192 are connected to each other.

  The first accommodating portion 14 has first end portions 171 and 181 (FIG. 3) in the height direction of the base 11 of the first insulating wall portion 17 and the second insulating wall portion 18 (that is, the vertical direction in FIGS. 3 and 4). 4 and FIG. 4, the first bottom surface 141 provided on the first accommodating portion 14 side of the upper end portion) and the second end portions 172 and 182 in the height direction of the first insulating wall portion 17 and the second insulating wall portion 18. And a first opening 142 provided on the first accommodating portion 14 side (the lower end portion in FIGS. 3 and 4). Further, as shown in FIG. 5, the second insulating wall portion 18 penetrates in the short side direction of the base 11 at the end of the second insulating wall portion 18 on the first side wall 111 side in the longitudinal direction. A first passage portion 143 communicating with the first housing portion 14 and the drive unit housing portion 16 is provided.

  The second accommodating portion 15 is a second portion provided on the second accommodating portion 15 side of the second end portion 172 (the lower end portion in FIGS. 3 and 4) in the height direction of the base 11 of the first insulating wall portion 17. A bottom surface 151 and a second opening 152 provided on the second accommodating portion 15 side of the first end portion 171 (the upper end portion in FIGS. 3 and 4) in the height direction of the first insulating wall portion 17 are provided. doing. Further, as shown in FIG. 5, at the end of the second housing portion 15 on the second side wall 112 side in the longitudinal direction of the base 11, the drive unit is housed along the second side wall 112 toward the third side wall 113. A second passage portion 153 connected to the portion 16 is provided. The second passage portion 153 includes the bottom surface of the base 11 and the second side wall 112, the fourth insulating wall portion 192, and the first cover 12.

  The drive unit housing portion 16 includes a second bottom surface 161 provided on the drive unit housing portion 16 side of the second end 182 (the lower end portion in FIGS. 3 and 4) of the second insulating wall portion 18, and a second insulation. It has the 3rd opening part 162 provided in the drive unit accommodating part 16 side of the 1st end part 181 (FIG. 3 and FIG. 4 upper end part) of the height direction of the wall part 18. As shown in FIG.

  The first cover 12 is attached to the base 11 so as to cover the first opening 142 of the first housing part 14 and the third opening 162 of the drive unit housing part 16. Further, the second cover 132 is attached to the base 11 so as to cover the second opening 152 of the second housing portion 15.

  As shown in FIG. 5, the first fixed contact side terminal 20 is formed on the first side wall 111 of the first side wall 111 and the second side wall 112 facing the longitudinal direction of the base 11 (that is, the left and right direction in FIG. 2). It is fixed and extends from the outside of the housing 10 to the first accommodating portion 14.

  Specifically, the first fixed contact side terminal 20 extends from the first side wall 111 of the base 11 to the fourth side wall 114 from the third side wall 113 to the fourth side wall 114 along the short side direction of the base 11. 5) and an end of the outer terminal 201 on the first side wall 111 side, and the inside of the housing 10 is second along the longitudinal direction of the base 11 from the first side wall 111 of the base 11. The inner terminal 202 extends toward the side wall 112. The first fixed contact portion 21 is fixed to the surface of the inner terminal 202 that faces 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.

  As shown in FIG. 5, the first movable contact side terminal 30 is fixed to the fourth side wall 114 side of the second side wall 112 of the base 11 rather than the first fixed contact side terminal 20, and is connected to the first fixed contact side terminal 20. On the other hand, the first housing portion 14 extends from the outside of the housing 10 in an electrically independent state.

  Specifically, as shown in FIG. 6, the first movable contact side terminal 30 extends from the third side wall 113 to the fourth side wall 114 along the short side direction of the base 11 from the second side wall 112 of the base 11 to the outside of the housing 10. An outer terminal 301 extending in a direction toward the first side wall and an end of the outer terminal 301 on the second side wall 112 side, and the interior of the housing 10 extends from the second side wall 112 of the base 11 along the longitudinal direction of the base 11. And an inner terminal 302 extending toward 111.

  As shown in FIG. 6, the first movable contact piece 31 is provided at the end 303 on the first side wall 111 side of the inner terminal 302 of the first movable contact side terminal 30. The first movable contact piece 31 is disposed in the first housing portion 14 and extends from the end 303 of the first movable contact side terminal 30 toward the first fixed contact side terminal 20. Moreover, the 1st movable contact piece 31 is comprised by the plate-shaped laminated body which laminated | stacked the rectangular plate member which has three electroconductivity which can be elastically deformed in the plate | board thickness direction as an example, and is the end part of the longitudinal direction The plate surface is fixed in a state where it contacts 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 a surface of the other end portion in the longitudinal direction of the first movable contact piece 31 facing the third side wall 113 of the base 11. The first movable contact portion 32 is disposed so as to face the first fixed contact portion 21, and the first movable contact piece 31 is elastically deformed, so that the first fixed contact portion 21 is in contact with the first fixed contact portion 21. It comes into contact or separation along the short direction.

  In addition, between the 1st movable contact part 32 of the 1st movable contact piece 31, and the edge part 303 of the 1st movable contact side terminal 30, it protruded in the U-shape toward the 3rd side wall 113 of the base 11. A curved portion 33 is provided. The bending portion 33 can absorb and relieve the amount of bending of the first movable contact piece 31 when the first movable contact piece 31 is elastically deformed, and can ensure smooth operation characteristics.

  As shown in FIG. 5, the second fixed contact side terminal 40 is fixed to the fourth side wall 114 side of the second side wall 112 of the base 11 relative to the first movable contact side terminal 30, and the first fixed contact side terminal 20 and The first movable contact side terminal 30 extends from the outside of the housing 10 to the second accommodating portion 15 in an electrically independent state.

  Specifically, the second fixed contact side terminal 40 is an external terminal that extends outside the housing 10 from the second side wall 112 of the base 11 in the direction from the third side wall 113 to the fourth side wall 114 along the short side direction of the base 11. 401 and an inner terminal which is connected to the end of the outer terminal 401 on the second side wall 112 side and extends from the second side wall 112 of the base 11 toward the first side wall 111 along the longitudinal direction of the base 11. 402. The second fixed contact portion 41 is fixed to the surface of the inner terminal 402 that faces 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. 5, the second movable contact side terminal 50 is fixed to the 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 the second fixed contact side terminal 40, and extends from the outside of the housing 10 to the second accommodating portion 15 in a state of being electrically independent.

  Specifically, the first movable contact side terminal 30 includes an outer terminal 501 extending from the fourth side wall 114 of the base 11 in the direction away from the third side wall 113 along the short side direction of the base 11 and the outer terminal 501. An inner terminal 502 connected to an end of the first side wall 501 on the side of the fourth side wall 112 and extending in the direction from the first side wall 111 toward 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. 5, 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 side wall 111 side. The second movable contact piece 51 is disposed in the second accommodating portion 15 adjacent to the first movable contact piece 31 in the plate thickness direction of the first movable contact piece 31 (that is, the short direction of the base 11). The end portion 503 of the movable contact side terminal 50 extends toward the second fixed contact side terminal 40. In addition, 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 stacked in the thickness direction, like the first movable contact piece 31. The plate surface of one end portion in the longitudinal direction is fixed in a state where it contacts the plate surface of the end portion 503 of the inner terminal 502 of the second movable contact side terminal 50. The second movable contact portion 52 is fixed to the surface 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 so as to face the second fixed contact portion 41, and the second movable contact piece 51 is elastically deformed, whereby the second movable contact portion 51 is elastically deformed. It comes into contact or separation along the short direction.

  In addition, it protruded in the U shape toward the 4th side wall 114 of the base 11 between the 2nd movable contact part 52 of the 2nd movable contact piece 51, and the edge part 503 of the 2nd movable contact side terminal 50. A curved portion 53 is provided. The bending portion 53 can absorb and relieve 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, the first fixed contact side terminal 20, the first movable contact side terminal 30, and the first movable contact piece 31 constitute the first conductive portion 3, and the second fixed contact side terminal 40, the second movable contact side. The terminal 50 and the second movable contact piece 51 constitute the second conductive portion 4. In the first conductive part 3, a portion excluding the outer terminal 201 of the first movable contact side terminal 20 and the outer terminal 301 of the first movable contact side terminal 30 is accommodated in the first accommodating part 14, and the second conductive part 4 is The portions excluding the outer terminal 401 of the second movable contact side terminal 40 and the outer terminal 501 of the second movable contact side terminal 50 are accommodated in the second accommodating portion 15.

  As shown in FIG. 5, the electromagnetic relay 1 includes a drive unit 2 having an electromagnet unit 60, a rotation block 70, an insulating first movable member 90, and an insulating second movable member 100. Yes. The drive unit 2 is housed in the drive unit housing portion 16 of the housing 10.

  As shown in FIG. 5, the electromagnet unit 60 is disposed at a position adjacent to the second side wall 112 of the drive unit housing unit 16. The electromagnet part 60 is formed on the outer surface of the coil 61 from both ends in the axial direction of the coil 61 wound around the winding center axis CL extending in the longitudinal direction of the base 11 and the electromagnet part 60 extending from the winding center axis CL. A plate-like first yoke 62 and a plate-like second yoke 63 that respectively extend along the axis. 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 illustrated, the electromagnet unit 60 is provided with a coil terminal, and currents in two different directions can be selectively supplied to the electromagnet unit 60 via the coil terminal.

  As shown in FIG. 7, the first yoke 62 extends from the third side wall 113 toward the fourth side wall 114 along the first side wall 111 of the base 11 from the end on the first side wall 111 side in the axial direction of the electromagnet unit 60. A connecting portion 621 extending in a direction (ie, downward in FIG. 7), and a second end from the first side wall 111 along the extending direction of the winding center axis CL from the distal end portion far from the electromagnet portion 60 of the connecting portion 621. It is comprised with the adsorption | suction part 622 extended in the direction (namely, right direction of FIG. 7) which goes to the side wall 112. FIG.

  As shown in FIG. 7, the second yoke 63 extends from the third side wall 113 toward the fourth side wall 114 along the second side wall 112 of the base 11 from the end on the second side wall 112 side in the axial direction of the electromagnet unit 60. A connection portion 631 extending in the direction, and a direction from the second side wall 112 toward the first side wall 111 along the extending direction of the winding central axis CL from the distal end portion far from the electromagnet portion 60 of the connection portion 631 (i.e., It is comprised with the adsorption | suction part 632 extended 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 are formed by extending the winding center axis CL in plan view along the height direction of the base 11 (that is, the paper surface penetration direction in FIG. 7). The center lines extending along the present direction are arranged so as to coincide with each other. That is, the front end surface of the suction portion 622 of the first yoke 62 and the front end surface of the suction portion 632 of the second yoke 63 are opposed to each other, and the rotation block arrangement space in which the rotation block 70 can be arranged therebetween. 64 is provided.

  As shown in FIG. 5, protrusions 625 and 635 projecting in the height direction of the base 11 are provided on the suction portion 622 of the first yoke 62 and the suction portion 632 of the second yoke 63, respectively. The protrusions 625 and 635 can be fitted into through holes 661 and 662 of the fixing plate 66 described later.

As shown in FIG. 7, the rotation block 70 is arranged in the rotation block 71 of the drive unit accommodating portion 16 so as to be rotatable around a rotation shaft 71 extending in the height direction of the base 11 with respect to the base 11 of the housing 10. It arrange | positions in the space 64 and rotates to a different direction with respect to the base 11 of the housing 10 according to the direction of the electric current supplied to the electromagnet part 60. FIG. In detail, the rotation block 70 is opposed to the block housing 72 (shown in FIG. 5), a permanent magnet 73 provided inside the block housing 72, and the block housing 72 so as to face each other with the permanent magnet 73 interposed therebetween. It has a fixed plate-shaped first iron piece 74 and a plate-shaped second iron piece 75. A first arm portion 721 extending toward the first side wall 111 of the base 11 is provided at the end of the block housing 72 on the fourth side wall 114 side and the first side wall 111 side, and the fourth side wall of the block housing 72 is provided. A second arm portion 722 extending toward the second side wall 112 of the base 11 is provided at an end portion on the 114 side and the second side wall 112 side.
ing.

  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 first yoke 62 is disposed on the third side wall 113 side with respect to the suction portion 622 of the first yoke 62 and the suction portion 632 of the second yoke 63.

  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 end portions 741 and 751 of the first iron piece 74 and the second iron piece 75, and the first end portions 741 and 751 of either the first iron piece 74 or the second iron piece 75. Is configured to come into contact with the first yoke 62 in the rotation direction of the rotation block 70. A second yoke 63 is disposed between the second end portions 742 and 752 of the first iron piece 74 and the second iron piece 75, and the second end portion 742 of either the first iron piece 74 or the second iron piece 75. , 752 are configured to contact the second yoke 63 in the rotation direction of the rotation block 70.

  The rotation block 70 is rotatably supported by the base 11 of the housing 10 and a fixed plate 66 fixed to the first yoke 62 and the second yoke 63 of the electromagnet portion 60. The fixed plate 66 has a substantially rectangular plate shape, and has through holes 661 and 662 penetrating in the thickness direction at both ends in the longitudinal direction. Each of the through holes 661 and 662 is fitted into the protrusion 625 of the first yoke 62 and the protrusion 635 of the second yoke 63, respectively. Further, a shaft hole portion 663 into which the rotation shaft portion 76 of the block housing 72 constituting the rotation shaft 71 of the rotation block 70 can be inserted is provided at the center of the fixed plate 66.

  As shown in FIG. 5, the first movable member 90 is disposed in the first passage portion 143 of the base 11 and is connected to the first movable contact piece 31 and the first arm portion 721 of the rotating block 70. At the same time, the first movable contact piece 31 is elastically deformed by moving in accordance with the turning direction of the turning block 70 to bring the first movable contact portion 32 into contact with or separated from the first fixed contact portion 21.

  Specifically, the first movable member 90 is configured so that the rotation of the rotation block 70 is in the contact / separation direction in which the first movable contact portion 32 contacts or separates from the first fixed contact portion 21 (that is, the short side of the base 11). Can be converted into a linear motion in a direction (vertical direction in FIG. 5), and connected to the tip of the first arm portion 721 of the rotation block 70 while allowing the rotation of the rotation block 70. The first movable contact piece 31 is connected to the end portion on the first side wall 111 side in the extending direction (that is, the left end portion in FIG. 5). That is, the first movable member 90 moves in the contact / separation direction by the rotation of the rotation block 70, and the end on the first side wall 111 side in the extending direction of the first movable contact piece 31 is moved to the first movable contact portion. 32 is moved in the contacting / separating direction in which the first fixed contact portion 21 is contacted or separated.

  As shown in FIG. 5, the second movable member 100 is disposed in the second passage portion 153 of the base 11 and is connected to the second movable contact piece 51 and the second arm portion 722 of the rotation block 70. At the same time, the second movable contact piece 51 is elastically deformed by moving according to the turning direction of the turning block 70, and the second movable contact portion 52 is brought into contact with or separated from the second fixed contact portion 41.

  Specifically, the second movable member 100 is configured so that the rotation of the rotation block 70 is in the contact / separation direction in which the second movable contact portion 52 contacts or separates from the second fixed contact portion 41 (that is, the vertical direction in FIG. 5). ) And is connected to the distal end portion of the second arm portion 722 of the rotation block 70 while allowing the rotation of the rotation block 70, and the second movable contact piece 51. It is connected to the end portion on the second side wall 112 side in the extending direction (that is, the end portion on the right side in FIG. 5). That is, the second movable member 100 moves in the contact / separation direction by the rotation of the rotation block 70, and the end portion on the second side wall 112 side in the extending direction of the second movable contact piece 51 is moved to the second movable contact portion. 52 moves in the contact / separation direction in which the second fixed contact portion 41 contacts or separates.

  In the electromagnetic relay 1, the operation state shown in FIG. 5 (that is, the first end 751 of the second iron piece 75 of the rotating block 70 contacts the suction portion 622 of the first yoke 62, and the The second end portion 742 of the iron piece 74 comes into contact with the suction portion 632 of the second yoke 63, the first movable contact portion 32 and the first fixed contact portion 21 come into contact, and the second movable contact portion 52 and the second 2 in a state in which the fixed contact portion 41 is in contact) current in a predetermined direction (for example, direction A in FIG. 5) is supplied to the electromagnet portion 60 of the electromagnetic relay 1 to rotate the rotation block 70. The shaft 71 is rotated clockwise as viewed from the extending direction. Then, along with the rotation of the rotation block 70, the arm portions 721 and 722 also rotate clockwise to move the first movable member 90 toward the fourth side wall 114 of the base 11, and 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 to separate the second movable contact portion 52 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 rotation block 70 contacts the suction portion 622 of the first yoke 62). The second end 752 of the second iron piece 75 comes into contact with the suction portion 632 of the second yoke 63, the first movable contact portion 32 is separated from the first fixed contact portion 21, and the second movable contact portion 52 is the second movable contact portion 52. 2 is in a state of being in contact with the fixed contact portion 41.

  In the electromagnetic relay 1 in the operating state, the first movable contact piece 31 is arranged on one side of the extending direction of the first movable contact piece 31 that intersects the contact / separation direction (for example, the left side in FIG. 2). The first fixed contact side terminal 20 or the first movable contact side terminal 30 (here, the first fixed contact side 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 in the extending direction 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 energized, the first conductive portion 3 including 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. Currents in opposite directions flow through the contact-side terminal 40, the second movable contact-side terminal 50, and the second conductive portion 4 including the second movable contact piece 51.

  Further, a current in a direction different from a predetermined direction (for example, a B direction in FIG. 5) is supplied to the electromagnet portion 60 of the electromagnetic relay 1 in the restored state, so that the rotation block 70 is connected to the rotation shaft 71 of the rotation block 70. Rotate counterclockwise when viewed from the extending direction. Then, as the rotation block 70 rotates, the arm portions 721 and 722 also rotate counterclockwise, and the first movable member 90 is moved toward the third side wall 113 of the base 11, so that the first movable contact is made. The portion 32 is brought into contact with the first fixed contact portion 21, and the second movable member 100 is moved toward the fourth side wall 114 of the base 11, so that the second movable contact portion 52 becomes the second fixed contact portion 41. Make contact.

  In the electromagnetic relay 1, the housing 10 is disposed inside the housing 10, and the first housing portion 14 that houses the first conductive portion 3 is adjacent to the first housing portion 14 in the contact / separation direction. 10 has a second housing part 15 that houses a part of the second conductive part 4 and a first insulating wall part 17 that partitions the first housing part 14 and the second housing part 15. Yes. In addition, the first accommodating portion 14 is provided at one end portion in the height direction intersecting (for example, orthogonal to) the first insulating wall portion 17 and the first insulating wall portion 17. And a second opening 15 provided at the other end in the height direction of the first insulating wall 17 and a second bottom surface provided at the other end in the height direction of the first insulating wall 17. 151 and a second opening 152 provided at one end of the first insulating wall 17 in the height direction. That is, the first opening 142 of the first housing part 14 and the second opening 152 of the second housing part 15 open in opposite directions in the height direction of the first insulating wall part 17. The first housing portion 14 and the second housing portion 15 are compared with the electromagnetic relay in which the first housing portion and the second housing portion are opened adjacent to each other in the same direction in the height direction of the insulating wall portion. It is possible to increase the spatial distance and the extended surface distance. As a result, a sufficient insulation distance can be secured between the first conductive part 3 accommodated in the first accommodating part 14 and the second conductive part 4 accommodated in the second accommodating part 15, and the first conductive part 3 and the 2nd electroconductive part 4 can prevent the short circuit between phases.

  Further, the first opening 142 of the first housing part 14 and the second opening 152 of the second housing part 15 are opened in opposite directions in the height direction of the first insulating wall part 17. By providing the first accommodating portion 14 and the second accommodating portion 15, the insulation between the second passage 153 is ensured, and the fourth insulating wall portion 192 of the second passage 153 of the base 11 and the second side wall 112 are provided. The distance can be reduced. Thereby, the space of the base 11 can be saved in the longitudinal direction of the base 11.

  Further, the drive unit housing portion 16 houses the drive unit 2 having the electromagnet portion 60, the rotation block 70, the first movable member 90, and the second movable member 100, and the height of the second insulating wall portion 18 is increased. It has the 3rd bottom face 161 provided in the one end part of the height direction, and the 3rd opening part 162 provided in the other end part of the height direction of the 2nd insulating wall part 18. As shown in FIG. For this reason, the drive unit 2 (for example, the 1st movable member 90 and the 2nd movable member 100) can be accommodated in the drive unit accommodating part 16 from the same direction via the 3rd opening part 162, and it can assemble easily. The electromagnetic relay 1 can be realized.

  In addition, a second fixed contact side terminal 40 and a second movable contact side terminal 50 are arranged between the first fixed contact side terminal 20 and the first movable contact side terminal 30. Therefore, for example, the first movable contact side terminal and the second fixed contact side terminal are disposed between the first fixed contact side terminal and the second movable contact side terminal, and the first movable contact side terminal is the first Compared to the electromagnetic relay in which the second fixed contact side terminal is arranged adjacent to the fixed contact side terminal and the second fixed contact side terminal is arranged adjacent to the second movable contact side terminal, The distance between the second movable contact piece 51 can be reduced. As a result, the base 11 can be saved in the contact / separation direction (that is, the short direction of the base 11).

  In the electromagnetic relay 1, the plate surface facing the inner terminal 302 of the first movable contact side terminal 30 and the fourth side wall 114 of the first movable contact piece 31, the inner terminal 502 of the second movable contact side terminal 50, and The plate surfaces facing the third side wall 113 of the second movable contact piece 51 are opposed to each other, and the inner terminal 302 and the first movable contact piece 31 of the first movable contact side terminal 30 and the second movable contact point. The inner terminal 502 of the side terminal 50 and the second movable contact piece 51 extend substantially parallel to each other. For example, by causing currents to flow through the first conductive portion 3 and the second conductive portion 4 in different directions, the electromagnetic repulsion in the direction away from the first movable contact piece 31 and the second movable contact piece 51 is achieved. The force works and the contact pressure of the movable contact portions 32 and 52 with respect to the corresponding fixed contact portions 21 and 41 can be increased.

  By the way, the electromagnetic repulsive force becomes stronger as the distance in the contact / separation direction between the first conductive portion 3 and the second conductive portion 4 (that is, the distance in the short direction of the base 11) becomes smaller. In the electromagnetic relay 1, the first conductive portion 3 and the second conductive portion 4 are accommodated in the first accommodating portion 14 and the second accommodating portion 15 in the base 11, respectively. The distance in the contact / separation direction between the first conductive part 3 and the second conductive part 4 can be reduced while ensuring insulation between the second conductive parts 4. Thereby, while preventing the interphase short circuit between the 1st electroconductive part 3 and the 2nd electroconductive part 4, contact reliability with respect to the corresponding fixed contact parts 21 and 41 of each movable contact part 32 and 52 by electromagnetic repulsive force is achieved. A high electromagnetic relay 1 can be realized.

  Moreover, in the said electromagnetic relay 1, although two electroconductive parts (namely, the 1st electroconductive part 3 and the 2nd electroconductive part 4) are provided, it is not restricted to this. There may be a plurality of conductive parts, and three or more conductive parts may be provided. In this case, the accommodating portions that can accommodate the respective conductive portions may be provided according to the number of the conductive portions, and two adjacent accommodating portions in the height direction of the insulating wall portion that partitions the two adjacent accommodating portions. What is necessary is just to provide the opening part of a part so that it may open in the mutually opposite direction.

  The drive unit 2 is not limited to the case where the electromagnet unit 60, the rotation block 70, the first movable member 90, and the second movable member 100 are included. The first movable contact piece 31 and the second movable contact piece 51 are moved, the first movable contact portion 32 is brought into contact with and separated from the first fixed contact portion 21, and the second movable contact portion 52 is moved to the second fixed contact portion. Any configuration can be adopted as long as it can be brought into and out of contact with 41.

  Further, in the electromagnetic relay 1, currents in opposite directions flow through the first conductive part 3 and the second conductive part 4, but currents in the same direction depend on the design of the electromagnetic relay. May be configured to flow.

  As mentioned above, although various embodiment in this invention was described in detail with reference to drawings, finally the various aspect of this invention is demonstrated.

The electromagnetic relay according to the first aspect of the present invention is:
With a box-shaped insulating housing,
A plate-like first fixed contact side terminal fixed to the housing and extending from the outside of the housing to the inside of the housing and having a first fixed contact portion located inside the housing;
A plate-shaped first movable contact-side terminal fixed to the housing, extending from the outside of the housing to the inside of the housing, and electrically arranged independently of the first fixed contact-side terminal When,
The first movable contact portion is disposed inside the housing and is electrically connected to the first movable contact side terminal, and has a first movable contact portion facing the first fixed contact portion. A first movable contact piece that is elastically deformed in a contacting / separating direction to contact or separate from the first fixed contact portion;
The housing is fixed to the housing, extends from the outside of the housing to the inside of the housing, and is electrically independent of the first fixed contact side terminal and the first movable contact side terminal, and the housing A plate-like second fixed contact side terminal having a second fixed contact portion located in the inside,
It is fixed to the housing, extends from the outside of the housing to the inside of the housing, and is electrically connected to the first fixed contact side terminal, the first movable contact side terminal, and the second fixed contact side terminal. A plate-like second movable contact side terminal arranged independently,
The second movable contact portion is disposed inside the housing and is electrically connected to the second movable contact side terminal, and has a second movable contact portion facing the second fixed contact portion. A second movable contact piece that elastically deforms in the contact / separation direction with respect to the second fixed contact portion,
The first fixed contact side terminal, the first movable contact side terminal, and the first movable contact piece constitute a first conductive portion, the second fixed contact side terminal, the second movable contact side terminal, and The second movable contact piece constitutes a second conductive portion, and the first conductive portion and the second conductive portion are arranged side by side in the contact / separation direction,
The housing comprises:
A first housing part disposed inside the housing and housing the first conductive part;
A second housing portion disposed inside the housing in a state adjacent to the first housing portion in the contact / separation direction and housing the second conductive portion;
An insulating wall that partitions the first housing portion and the second housing portion;
A first bottom surface provided on a first housing portion side of one end portion in a height direction intersecting the contact / separation direction of the insulating wall portion, and the height direction of the insulating wall portion. And having a first opening provided on the first accommodating portion side of the other end,
A second bottom surface provided on the second housing portion side of the other end portion in the height direction of the insulating wall portion; and the one end portion of the insulating wall portion in the height direction. And a second opening provided on the second housing portion side.

  According to the electromagnetic relay of the first aspect, the first opening of the first housing portion and the second opening of the second housing portion open in opposite directions in the height direction of the insulating wall portion. Therefore, compared with the electromagnetic relay which the 1st accommodating part and the 2nd accommodating part are opened adjacent to the same direction in the height direction of an insulating wall part, it is the 1st accommodating part and the 2nd accommodating part. It is possible to increase the space distance and the extended surface distance. As a result, a sufficient insulation distance can be secured between the first conductive part accommodated in the first accommodating part and the second conductive part accommodated in the second accommodating part, and the first conductive part and the second conductive part can be secured. It is possible to prevent a short circuit between the two parts.

The electromagnetic relay of the second aspect of the present invention is
An electromagnet part arranged in the housing part and capable of supplying currents in different directions;
Arranged in a rotation block arrangement space inside the housing so as to be rotatable around a rotation axis extending in a direction crossing the contact / separation direction and the height direction of the insulating wall portion, and supplied to the electromagnet portion. A rotating block that rotates in a different direction with respect to the housing according to the direction of the current
It is arranged inside the housing and connected to one end of the rotating block in a direction intersecting the rotating axis and the first movable contact piece, and moves according to the rotating direction of the rotating block. A first movable member that elastically deforms the first movable contact piece to bring the first movable contact portion into contact with or separate from the first fixed contact portion;
It is arranged inside the housing and connected to the other end of the rotating block in the direction intersecting the rotating shaft and the second movable contact piece, and moves according to the rotating direction of the rotating block. A second movable member that elastically deforms the second movable contact piece to bring the second movable contact portion into contact with or separate from the second fixed contact portion,
The housing is arranged side by side in the contact / separation direction with respect to the first housing portion and the second housing portion, and the electromagnet portion, the rotating block, the first movable member, and the second movable member. A drive unit housing portion for housing the drive unit having
The drive unit housing portion includes a third bottom surface provided on the drive unit housing portion side of the one end portion in the height direction of the insulating wall portion, and the other end portion of the insulating wall portion in the height direction. And a third opening provided on the drive unit housing portion side.

  According to the electromagnetic relay of the second aspect, the drive unit, for example, the first movable member and the second movable member can be accommodated in the drive unit accommodating portion from the same direction via the third opening, and can be easily assembled. A simple electromagnetic relay 1 can be realized.

The electromagnetic relay of the third aspect of the present invention is
The second fixed contact side terminal and the second movable contact side terminal are arranged between the first fixed contact side terminal and the first movable contact side terminal.

  According to the electromagnetic relay of the third aspect, for example, the first movable contact side terminal and the second fixed contact side terminal are arranged between the first fixed contact side terminal and the second movable contact side terminal, and the first Compared with the electromagnetic relay in which the movable contact side terminal is disposed adjacent to the first fixed contact side terminal and the second fixed contact side terminal is disposed adjacent to the second movable contact side terminal, The distance between the first movable contact piece and the second movable contact piece can be reduced. As a result, the housing can be saved in the contact / separation direction.

  In addition, it can be made to show the effect which each has by combining arbitrary embodiment or modification of the said various embodiment or modification suitably. In addition, combinations of the embodiments, combinations of the examples, or combinations of the embodiments and examples are possible, and combinations of features in different embodiments or examples are also possible.

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

DESCRIPTION OF SYMBOLS 1 Electromagnetic relay 2 Drive unit 3 1st electroconductive part 4 2nd electroconductive part 10 Housing 11 Base 111 1st side wall 112 2nd side wall 113 3rd side wall 114 4th side wall 12 1st cover 13 2nd cover 14 1st accommodating part 141 First bottom surface 142 First opening portion 143 First passage portion 15 Second housing portion 151 Second bottom surface 152 Second opening portion 153 Second passage portion 16 Drive unit housing portion 17 First insulating wall portion 171 First end portion 172 First 2 end portion 18 second insulating wall portion 181 first end portion 182 second end portion 191 third insulating wall portion 192 fourth insulating wall portion 20 first fixed contact side terminal 201 outer terminal 202 inner terminal 21 first 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 bending portion 40 second fixed contact side terminal 401 outer terminal 402 inner terminal 4 DESCRIPTION OF SYMBOLS 1 2nd fixed contact part 50 2nd movable contact side terminal 501 Outer terminal 502 Inner terminal 503 End part 51 Second movable contact piece 52 Second movable contact part 53 Bending part 60 Electromagnet part 61 Coil 62 First yoke 621 Connection part 622 Suction part 63 Second yoke 631 Connection part 632 Suction part 64 Rotating block arrangement space 66 Fixed plate 70 Rotating block 71 Rotating shaft 72 Block housing 721 First arm part 722 Second arm part 73 Permanent magnet 74 First iron piece 741 First end 742 Second end 75 Second iron piece 751 First end 752 Second end 90 First movable member 100 Second movable member CL Winding central axis

Claims (3)

With a box-shaped insulating housing,
A plate-like first fixed contact side terminal fixed to the housing and extending from the outside of the housing to the inside of the housing and having a first fixed contact portion located inside the housing;
A plate-shaped first movable contact-side terminal fixed to the housing, extending from the outside of the housing to the inside of the housing, and electrically arranged independently of the first fixed contact-side terminal When,
The first movable contact portion is disposed inside the housing and is electrically connected to the first movable contact side terminal, and has a first movable contact portion facing the first fixed contact portion. A first movable contact piece that is elastically deformed in a contacting / separating direction to contact or separate from the first fixed contact portion;
The housing is fixed to the housing, extends from the outside of the housing to the inside of the housing, and is electrically independent of the first fixed contact side terminal and the first movable contact side terminal, and the housing A plate-like second fixed contact side terminal having a second fixed contact portion located in the inside,
It is fixed to the housing, extends from the outside of the housing to the inside of the housing, and is electrically connected to the first fixed contact side terminal, the first movable contact side terminal, and the second fixed contact side terminal. A plate-like second movable contact side terminal arranged independently,
The second movable contact portion is disposed inside the housing and is electrically connected to the second movable contact side terminal, and has a second movable contact portion facing the second fixed contact portion. A second movable contact piece that elastically deforms in the contact / separation direction with respect to the second fixed contact portion,
The first fixed contact side terminal, the first movable contact side terminal, and the first movable contact piece constitute a first conductive portion, the second fixed contact side terminal, the second movable contact side terminal, and The second movable contact piece constitutes a second conductive portion, and the first conductive portion and the second conductive portion are arranged side by side in the contact / separation direction,
The housing comprises:
A first housing part disposed inside the housing and housing the first conductive part;
A second housing portion disposed inside the housing in a state adjacent to the first housing portion in the contact / separation direction and housing the second conductive portion;
An insulating wall that partitions the first housing portion and the second housing portion;
A first bottom surface provided on a first housing portion side of one end portion in a height direction intersecting the contact / separation direction of the insulating wall portion, and the height direction of the insulating wall portion. And having a first opening provided on the first accommodating portion side of the other end,
A second bottom surface provided on the second housing portion side of the other end portion in the height direction of the insulating wall portion; and the one end portion of the insulating wall portion in the height direction. The electromagnetic relay which has a 2nd opening part provided in the 2nd accommodating part side. An electromagnet part arranged in the housing part and capable of supplying currents in different directions;
Arranged in a rotation block arrangement space inside the housing so as to be rotatable around a rotation axis extending in a direction crossing the contact / separation direction and the height direction of the insulating wall portion, and supplied to the electromagnet portion. A rotating block that rotates in a different direction with respect to the housing according to the direction of the current
It is arranged inside the housing and connected to one end of the rotating block in a direction intersecting the rotating axis and the first movable contact piece, and moves according to the rotating direction of the rotating block. A first movable member that elastically deforms the first movable contact piece to bring the first movable contact portion into contact with or separate from the first fixed contact portion;
It is arranged inside the housing and connected to the other end of the rotating block in the direction intersecting the rotating shaft and the second movable contact piece, and moves according to the rotating direction of the rotating block. A second movable member that elastically deforms the second movable contact piece to bring the second movable contact portion into contact with or separate from the second fixed contact portion,
The housing is arranged side by side in the contact / separation direction with respect to the first housing portion and the second housing portion, and the electromagnet portion, the rotating block, the first movable member, and the second movable member. A drive unit housing portion for housing the drive unit having
The drive unit housing portion includes a third bottom surface provided on the drive unit housing portion side of the one end portion in the height direction of the insulating wall portion, and the other end portion of the insulating wall portion in the height direction. The electromagnetic relay according to claim 1, further comprising a third opening provided on the drive unit housing portion side.   The electromagnetic relay according to claim 1 or 2, wherein the second fixed contact side terminal and the second movable contact side terminal are disposed between the first fixed contact side terminal and the first movable contact side terminal. .

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