JP6922534B2 - Electromagnetic relay - Google Patents

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 inside, two fixed contact side terminals fixed to the housing, and two movable contact side terminals. The accommodating portion of this 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 parts arranged so as to face the fixed contact part, an electromagnet part whose polarity is reversed depending on the direction of the supplied current, and one rotation that rotates in a different direction depending on the polarity of the electromagnet part. It has a block.

The electromagnetic relay is composed of a fixed contact side terminal, a movable contact side terminal, and a movable contact piece, and the movable contact pieces face each other side by side in a direction in which the movable contact portion contacts or opens with respect to the fixed contact portion in the base. Two arranged circuits are formed. Each movable contact piece is elastically deformed in the direction of approaching each other to bring the movable contact portion into contact with the opposite fixed contact portion, and elastically deformed in the direction of being separated from each other, thereby causing the movable contact portion to face the fixed contact portion. It is arranged so as to be separated from the part.

US2009 / 0033446A1

However, in the electromagnetic relay, the directions of the currents flowing through the two movable contact pieces are different from each other regardless of whether the current is supplied from the fixed contact side terminal or the movable contact side terminal, so that each movable contact piece. Electromagnetic repulsive force is generated in the direction away from each other. That is, when energized, an electromagnetic repulsive force acts in a direction in which each movable contact portion separates from the corresponding fixed contact portion, and the contact reliability of each movable contact portion with respect to the corresponding fixed contact portion may decrease.

Therefore, it is an object of the present invention to provide a multi-pole electromagnetic relay capable of improving the contact reliability of each movable contact portion with respect to the corresponding fixed contact portion.

The electromagnetic relay according to one aspect of the present invention is
A box-shaped insulating housing with an internal housing,
A plate-shaped first fixed contact side terminal that is fixed to the housing, extends from the outside of the housing to the housing portion, and has a first fixed contact portion located in the housing portion.
A plate-shaped first movable contact side terminal that is fixed to the housing, extends from the outside of the housing to the housing portion, and is electrically arranged independently of the first fixed contact side terminal. ,
The first fixed contact portion is arranged in the accommodating portion, extends from the first movable contact side terminal toward the first fixed contact side terminal, and is electrically connected to the first movable contact side terminal. A plate-shaped first movable contact piece having a first movable contact portion facing the surface and elastically deforming in the contact / separation direction in which the first movable contact portion contacts or opens with respect to the first fixed contact portion.
It is fixed to the housing, extends from the outside of the housing to the housing portion, and is electrically and independently arranged with respect to the first fixed contact side terminal and the first movable contact side terminal, and the housing portion. A plate-shaped second fixed contact side terminal having a second fixed contact portion located at
It is fixed to the housing, extends from the outside of the housing to the housing portion, and is electrically connected to the first fixed contact side terminal, the first movable contact side terminal, and the second fixed contact side terminal. The plate-shaped second movable contact side terminal, which is independently arranged in the housing,
The first movable contact piece is arranged in the accommodating portion adjacent to the first movable contact piece in the plate thickness direction, extends from the second movable contact side terminal toward the second fixed contact side terminal, and is said to be the first. 2 It is electrically connected to the movable contact side terminal and has a second movable contact portion facing the second fixed contact portion, and the second movable contact portion has the second movable contact portion with respect to the second fixed contact portion. A plate-shaped second movable contact piece that elastically deforms in the contact / separation direction,
With
The first movable contact piece extends in a direction intersecting the plate thickness direction and is provided with the first movable contact portion, and the second movable contact piece and the first movable contact piece are opposed to the first surface and are provided with the first movable contact portion. 2 It has a second surface facing at least one of the movable contact side terminals, and has
The second movable contact piece extends on a third surface extending in a direction intersecting the plate thickness direction and facing at least one of the first movable contact piece and the first movable contact side terminal, and the third surface. It has a fourth surface that faces each other and is provided with the second movable contact portion.
The first fixed contact side terminal or the first movable contact side terminal arranged on one side of the first movable contact piece in the extending direction of the first movable contact piece intersecting with the first movable contact piece. Is a terminal to which an electric current is supplied, and the second fixed contact side terminal or the second fixed contact side terminal arranged on the other side of the first movable contact piece in the extending direction with respect to the second movable contact piece. 2 The movable contact side terminal is a terminal to which an electric current is supplied.

According to the electromagnetic relay of the above aspect, the first movable contact piece and the second movable contact piece are provided, the first movable contact piece extends in a direction intersecting the plate thickness direction, and the first movable contact portion is provided. The second movable contact piece has a first surface and a second surface that faces the first surface in the plate thickness direction and faces at least one of the second movable contact piece and the second movable contact side terminal. , A third surface extending in a direction intersecting the plate thickness direction and facing at least one of the first movable contact piece and the first movable contact side terminal, and a second surface facing the third surface in the plate thickness direction and facing the third surface. It has a fourth surface provided with a movable contact portion. Further, the directions of the currents flowing through the first movable contact piece and the second movable contact piece are different from each other. Therefore, when energized, an electromagnetic repulsive force acts on the first movable contact piece and the second movable contact piece in the direction in which each movable contact portion approaches the corresponding fixed contact portion, and the corresponding fixing of each movable contact portion. The contact pressure with respect to the contact portion can be increased. As a result, the contact reliability of each movable contact portion with respect to the corresponding fixed contact portion can be improved.

The perspective view of the electromagnetic relay of one Embodiment of this invention. The plan view of the electromagnetic relay of FIG. FIG. 2 is a cross-sectional view taken along the line III-III of FIG. The perspective view for demonstrating the 2nd magnetic collecting piece and the 2nd auxiliary magnetic collecting piece of the electromagnetic relay of FIG. FIG. 3 is a perspective view seen from a direction different from that of FIG. 4 for explaining the second magnetic collector piece and the second auxiliary magnetic collector piece of the electromagnetic relay of FIG. The plan view for demonstrating the drive unit of the electromagnetic relay of FIG. A side view showing a first modification of the electromagnetic relay of FIG. 1. The perspective view which shows the 2nd modification 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 a specific direction or position (for example, terms including "top", "bottom", "right", and "left") are used as necessary, but the use of these terms is used. Is for facilitating the understanding of the invention with reference to the drawings, and the meaning of those terms does not limit the technical scope of the present invention. In addition, the following description is merely an example and is not intended to limit the present invention, its application, or its use. Furthermore, the drawings are schematic, and the ratio of each dimension does not always match the actual one.

As shown in FIG. 1, the electromagnetic relay 1 according to the 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, respectively. It includes a terminal 30, a second fixed contact side terminal 40, and a second movable contact side terminal 50.

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 substantially L-shaped rectangular plates in which the intermediate portions in the longitudinal direction are bent. Shaped and conductive. Further, the second fixed contact side terminal 40 and the second movable contact side terminal 50 are arranged between the first fixed contact side terminal 20 and the first movable contact side terminal 30, and the first fixed contact side terminal 20 is arranged. , The first movable contact side terminal 30, the second fixed contact side terminal 40, and the outer end of the housing 10 of the second movable contact side terminal 50 are arranged substantially in a straight line.

As shown in FIG. 1, the housing 10 is composed of a substantially rectangular box-shaped base 11 and a substantially rectangular plate-shaped cover 12, and as shown in FIG. 2, has an accommodating portion 13 inside the housing 10. That is, the accommodating portion 13 is covered with the base 11 and the cover 12.

As shown in FIG. 2, the first fixed contact side terminal 20 is attached to 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-right direction in FIG. 2). It is fixed and extends from the outside of the housing 10 to the accommodating portion 13.

Specifically, the first fixed contact side terminal 20 is directed from the third side wall 113 to the fourth side wall 114 along the lateral side of the base 11 from the first side wall 111 of the base 11 (that is, the drawing). The outer terminal 201 extending downward) and the end of the outer terminal 201 on the first side wall 111 side are connected, 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. It is composed of an inner terminal 202 extending toward the side wall 112. 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 arranged near the first side wall 111 of the base 11.

As shown in FIG. 2, the first movable contact side terminal 30 is fixed to the fourth side wall 114 side of the first fixed contact side terminal 20 of the second side wall 112 of the base 11, and is fixed to the first fixed contact side terminal 20. On the other hand, it extends from the outside of the housing 10 to the accommodating portion 13 in an electrically independent state.

Specifically, the first movable contact side terminal 30 is an outer terminal extending from the second side wall 112 of the base 11 to the lateral side of the base 11 from the third side wall 113 to the fourth side wall 114 on the outside of the housing 10. An inner terminal connected to the outer terminal 301 on the second side wall 112 side and extending from the second side wall 112 of the base 11 toward the first side wall 111 along the longitudinal direction of the base 11. It is composed of 302.

As shown in FIG. 2, a first movable contact piece 31 is provided at an 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 arranged in the accommodating 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. Further, the first movable contact piece 31 is composed of, for example, a plate-like laminated body in which three conductive and elastically deformable rectangular plate members are stacked in the plate thickness direction, and one end portion in the longitudinal direction thereof. The plate surface is fixed in contact with the plate surface of the end 303 of the inner terminal 302 of the first movable contact side terminal 30. The 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 facing the third side wall 113 of the base 11, and is attached to the fourth side wall 114 of the first movable contact piece 31. The facing surfaces face the inner terminal 502 and the second movable contact piece 51 of the second movable contact side terminal 50, which will be described later. That is, the first movable contact piece 31 has a first surface 311 arranged in the plate thickness direction (that is, the lateral direction of the base 11) and provided with the first movable contact portion 32, and the first movable contact piece 31. It has a second movable contact piece 51 and a second surface 312 facing the inner terminal 502 of the second movable contact side terminal 50, which is arranged on the opposite side of the first surface 311 in the plate thickness direction of the above. The first movable contact portion 32 is arranged so as to face the first fixed contact portion 21, and the first movable contact piece 31 is elastically deformed so that the base 11 is shorter than the first fixed contact portion 21. It is designed to come into contact with or release along the hand direction.

A U-shape is formed between the first movable contact portion 32 of the first movable contact piece 31 on the first surface 311 and the end portion 303 of the first movable contact side terminal 30 toward the third side wall 113 of the base 11. A curved portion 33 protruding in a shape is provided. The curved portion 33 can absorb and alleviate 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. 2, the first movable contact side terminal 30 has a first magnetic collecting piece 80 that collects magnetic flux from the first movable contact piece 31 and a magnetic flux from the inner terminal 302 of the first movable contact side terminal 30. A first auxiliary magnetic flux collecting piece 83 is provided. The first magnetic collecting piece 80 is made of iron as an example, and as shown in FIG. 3, the first movable contact piece 80 is arranged so as to have a gap 801 between the first movable contact piece 31 and the first movable contact piece 31. It covers at least a part of the first surface 311.

Specifically, the first magnetic collecting piece 80 intersects a plate-shaped horizontal plate portion 81 that covers a part of the first surface 311 of the first movable contact piece 31 with the first surface 311 and the second surface 312 (for example,). It has two plate-shaped vertical plate portions 82 that are orthogonal to each other and cover a part of both side surfaces extending in the extending direction (that is, the lateral direction of the base 11) of the first movable contact piece 31. As shown in FIG. 3, each vertical plate portion 82 is connected to both ends in the width direction (that is, the left-right direction in FIG. 3) of the horizontal plate portion 81, and extends toward the fourth side wall 114 of the base 11. There is. In FIG. 3, the housing 10 is omitted.

Further, the first auxiliary magnetic collecting piece 83 has a plate shape made of iron as an example, and is connected to the end portion of the horizontal plate portion 81 on the second side wall 112 side as shown in FIG. It covers a part of the surface of the inner terminal 302 of the movable contact side terminal 30 facing the third side wall 113.

As shown in FIG. 2, 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, and is fixed to the first fixed contact side terminal 20 and the first fixed contact side terminal 20. It extends from the outside of the housing 10 to the accommodating portion 13 in a state of being electrically independent of the first movable contact side terminal 30.

Specifically, the second fixed contact side terminal 40 is an outer terminal extending from the second side wall 112 of the base 11 to the lateral side of the base 11 from the third side wall 113 to the fourth side wall 114 on the outside of the housing 10. An inner terminal connected to the outer terminal 401 on the second side wall 112 side and extending from the second side wall 112 of the base 11 toward the first side wall 111 along the longitudinal direction of the base 11. It is composed of 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 arranged near the second side wall 112 of the base 11.

As shown in FIG. 2, the second movable contact side terminal 50 is fixed to the end portion 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 and the first movable contact side terminal. It extends from the outside of the housing 10 to the accommodating portion 13 in a state of being electrically independent of the 30 and the second fixed contact side terminal 40.

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 a direction away from the third side wall 113 along the lateral direction of the base 11 and an outer terminal. An inner terminal 502 connected to the end of the 501 on the side of the fourth side wall 112 and extending the inside of the housing 10 from the fourth side wall 114 in the longitudinal direction of the base 11 from the first side wall 111 to the second side wall 112. It is composed of.

As shown in FIG. 2, a second movable contact piece 51 is provided at the end 503 on the second side wall 111 side of the inner terminal 502 of the second movable contact side terminal 50. The second movable contact piece 51 is arranged in the accommodating portion 13 adjacent to the first movable contact piece 31 in the plate thickness direction of the first movable contact piece 31 (that is, in the lateral direction of the base 11), and is a second movable contact. It extends from the end 503 of the side terminal 50 toward the second fixed contact side terminal 40. Further, as an example, the second movable contact piece 51 is a plate-like laminated body in which three conductive and elastically deformable rectangular plate members are laminated in the plate thickness direction, similarly to the first movable contact piece 31. The plate surface of one end portion in the longitudinal direction thereof is fixed in contact with 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 other end of the second movable contact piece 51 in the longitudinal direction facing the fourth side wall 114 of the base 11, and is attached to the third side wall 113 of the second movable contact piece 51. The facing surfaces face the inner terminal 302 and the first movable contact piece 31 of the first movable contact side terminal 30. That is, the second movable contact piece 51 is arranged in the plate thickness direction (that is, the lateral direction of the base 11) and faces the inner terminal 302 of the first movable contact piece 31 and the first movable contact side terminal 30. It has a third surface 511 and a fourth surface 512 arranged on the opposite side of the third surface 511 in the plate thickness direction of the second movable contact piece 51 and provided with a second movable contact portion 52. The second movable contact portion 52 is arranged so as to face the second fixed contact portion 41, and the second movable contact piece 51 is elastically deformed so that the base 11 is shorter than the second fixed contact portion 41. It is designed to come into contact with or release along the hand direction.

A U-shape is formed 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 on the fourth surface 512 toward the fourth side wall 114 of the base 11. A curved portion 53 projecting in a shape is provided. The curved portion 53 can absorb and alleviate 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 second movable contact side terminal 50 includes a second magnetic collecting piece 180 that collects magnetic flux from the second movable contact piece 51 and the inner terminal 502 of the second movable contact side terminal 50. A second auxiliary magnetic collecting piece 183 that collects magnetic flux from the inner terminal 502 of the second movable contact side terminal 50 is provided. The second magnetic collecting piece 180 is arranged so that the magnetic collecting piece 80 is made of iron as an example and has a gap 802 (shown in FIGS. 4 and 5) with the second movable contact piece 51. It covers at least a part of the fourth surface 512 of the second movable contact piece 51.

Specifically, the second magnetic collection piece 180 has the same configuration as the first magnetic collection piece 80. That is, as shown in FIGS. 4 and 5, the second magnetic collecting piece 180 includes a plate-shaped horizontal plate portion 181 covering a part of the fourth surface 512 of the second movable contact piece 51, the third surface 511, and the third surface 511. Two plate-shaped vertical plates that intersect the fourth surface 512 (for example, orthogonally) and cover a part of both side surfaces extending in the extending direction (that is, the lateral direction of the base 11) of the second movable contact piece 51. It has a portion 182. Each vertical plate portion 182 is connected to both ends in the width direction (that is, the X direction in FIG. 4) of the horizontal plate portion 181 and extends toward the third side wall 113 of the base 11 as shown in FIG. There is.

Further, the second auxiliary magnetic collecting piece 183 has a plate shape made of iron as an example, and is connected to the end portion of the horizontal plate portion 81 on the first side wall 111 side as shown in FIG. It covers a part of the surface of the inner terminal 502 of the movable contact side terminal 50 facing the fourth side wall 114.

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

As shown in FIG. 2, the electromagnet portion 60 is arranged at a position adjacent to the second side wall 112 of the accommodating portion 13. The electromagnet portion 60 is formed on the outer surface of the coil 61 from both ends of the coil 61 wound around the winding center axis CL extending in the longitudinal direction of the base 11 and the electromagnet portion 60 extending in the winding center axis CL in the axial direction. It has a plate-shaped first yoke 62 and a plate-shaped second yoke 63 extending along the plate-shaped first yoke 62, respectively. The first yoke 62 and the second yoke 63 are arranged between the first movable contact piece 31 and the second movable contact piece 51 and the electromagnet portion 60. Although not shown, 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. 6, the first yoke 62 is directed from the end portion of the electromagnet portion 60 on the first side wall 111 side in the axial direction from the third side wall 113 to the fourth side wall 114 along the first side wall 111 of the base 11. From the connecting portion 621 extending in the direction (that is, downward in FIG. 6) and the tip portion of the connecting portion 621 farther from the electromagnet portion 60, the first side wall 111 to the second side wall 111 to the second along the extending direction of the winding central axis CL. It is composed of a suction portion 622 extending in a direction toward the side wall 112 (that is, facing right in FIG. 6).

As shown in FIG. 6, the second yoke 63 is directed from the end portion of the electromagnet portion 60 on the second side wall 112 side in the axial direction from the third side wall 113 to the fourth side wall 114 along the second side wall 112 of the base 11. A direction extending from the connecting portion 631 extending in the direction and the tip portion of the connecting portion 631 far from the electromagnet portion 60 toward the first side wall 111 from the second side wall 112 along the extending direction of the winding central axis CL (that is,). It is composed of a suction portion 632 extending in the left direction in FIG. 6).

The suction portion 622 of the first yoke 62 and the suction portion 632 of the second yoke 63 extend the winding central axis CL in a plan view along the height direction of the base 11 (that is, the paper surface penetration direction of FIG. 6). The center lines extending along the current direction are arranged so as to coincide with each other. That is, the tip surface of the suction portion 622 of the first yoke 62 and the tip surface of the suction portion 632 of the second yoke 63 face each other, and a rotation block arrangement space in which the rotation block 70 can be arranged between them. 64 is provided.

As shown in FIG. 2, the suction portion 622 of the first yoke 62 and the suction portion 632 of the second yoke 63 are provided with protrusions 625 and 635 protruding in the height direction of the base 11, respectively. The protrusions 625 and 635 can be fitted into the through holes 661 and 662 of the fixing plate 66, which will be described later.

As shown in FIG. 6, the rotating block 70 can rotate around a rotating shaft 71 extending in the height direction of the base 11 with respect to the base 11 of the housing 10, and the rotating block arrangement space 64 of the accommodating portion 13 Is arranged in, and rotates in different directions with respect to the base 11 of the housing 10 according to the direction of the electric current supplied to the electromagnet unit 60. Specifically, the rotating block 70 faces the block housing 72 (shown in FIG. 2), the 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. Further, a first arm portion 721 extending toward the first side wall 111 of the base 11 is provided at an end portion 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. A second arm portion 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 .

The first iron piece 74 has a first end portion 741 protruding from the permanent magnet 73 toward the first yoke 63, and a second end portion 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 arranged on the third side wall 113 side.

The second iron piece 75 has a first end portion 751 protruding from the permanent magnet 73 toward the first yoke 63, and a second end portion 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 arranged on the fourth side wall 114 side.

A first yoke 62 is arranged between the first ends 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 and the second iron piece 75 are arranged. Is configured to come into contact with the first yoke 62 in the direction of rotation of the rotation block 70. Further, a second yoke 63 is arranged 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 any one of the first iron piece 74 and the second iron piece 75 is arranged. , 752 are configured to come into contact with the second yoke 63 in the rotation direction of the rotation block 70.

Further, the rotating block 70 is rotatably supported by the base 11 of the housing 10 and the fixing plate 66 fixed to the first yoke 62 and the second yoke 63 of the electromagnet portion 60. As shown in FIG. 2, the fixing plate 66 has a substantially rectangular plate shape, and has through holes 661 and 662 penetrating in the plate thickness direction at both ends in the longitudinal direction, respectively. The through holes 661 and 662 are fitted into the protrusions 625 of the first yoke 62 and the protrusions 635 of the second yoke 63, respectively. Further, in the center of the fixing plate 66, a shaft hole portion 663 into which the rotating shaft portion 76 of the block housing 72 constituting the rotating shaft 71 of the rotating block 70 can be inserted is provided.

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 rotating block 70, and is connected according to the rotating direction of the rotating 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 open from the first fixed contact portion 21.

Specifically, in the first movable member 90, the first movable contact portion 32 contacts or opens the rotation of the rotation block 70 with respect to the first fixed contact portion 21 (that is, the short side of the base 11). It can be converted into a linear motion in the direction (vertical direction in FIG. 2), and is connected to the tip of the first arm portion 721 of the rotating block 70 while allowing the rotating block 70 to rotate. , The first movable contact piece 31 is connected to the end portion on the first side wall 111 side (that is, the left end portion in FIG. 2) in the extending direction. That is, the first movable member 90 moves in the contacting / separating direction due to the rotation of the rotating block 70, and the end portion on the first side wall 111 side in the extending direction of the first movable contact piece 31 is the first movable contact portion. The 32 is moved in the contact / separation direction in which the 32 contacts or opens 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 portion 722 of the rotation block 70, and is connected to the second arm portion 722 of the rotation block 70 according to the rotation direction of the rotation block 70. It moves to elastically deform the second movable contact piece 51 to bring the second movable contact portion 52 into contact with or open from the second fixed contact portion 41.

Specifically, the second movable member 100 has a contact / separation direction in which the second movable contact portion 52 contacts or opens the rotation of the rotation block 70 with respect to the second fixed contact portion 41 (that is, the vertical direction in FIG. 2). ), And is connected to the tip of the second arm 722 of the rotating block 70 while allowing the rotating block 70 to rotate, and the second movable contact piece 51. It is connected to the end on the second side wall 112 side in the extending direction (that is, the right end in FIG. 2). That is, the second movable member 100 moves in the contacting / separating direction due to the rotation of the rotating block 70, and the end portion of the second movable contact piece 51 on the second side wall 112 side in the extending direction is the second movable contact portion. 52 is moved in the contacting / separating direction in which the second fixed contact portion 41 is brought into contact with or separated from the second fixed contact portion 41.

In the electromagnetic relay 1, the operating state shown in FIG. 2 (that is, the first end portion 751 of the second iron piece 75 of the rotating block 70 comes into contact with the suction portion 622 of the first yoke 62, and the second iron piece 75 of the rotating block 70 is in contact with the suction portion 622. The second end portion 742 of the 1 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 with each other, and the second movable contact portion 52 and the second movable contact portion 52 and the second 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 contact with the fixed contact portion 41) to rotate the rotation block 70 of the rotation block 70. Rotate the shaft 71 clockwise when viewed from the extending direction. Then, as the rotation block 70 rotates, 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 the first movable contact portion. The 32 is separated from the first fixed contact portion 21, the second movable member 100 is moved toward the third side wall 113 of the base 11, and the second movable contact portion 52 is separated from the second fixed contact portion 41. Let me. As a result, the electromagnetic relay 1 is returned from the operating state (that is, the first end portion 741 of the first iron piece 74 of the rotating block 70 comes into contact with the suction portion 622 of the first yoke 62, and the rotating block 70 The second end portion 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. 2 The state of open contact from the fixed contact portion 41).

In the operating electromagnetic relay 1, the first movable contact piece 31 is arranged on one side (for example, the left side in FIG. 2) of the first movable contact piece 31 intersecting the first movable contact piece 31 in the extending direction. 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 a current is supplied. Further, the second fixed contact side terminal 40 or the second movable contact arranged 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 a current is supplied. That is, in the electromagnetic relay 1, the first conductive portion 3 composed of 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 when energized. Currents flow in opposite directions to the contact-side terminal 40, the second movable contact-side terminal 50, and the second conductive portion 4 composed of the second movable contact piece 51 (in FIG. 2, the first conductive portion). The direction of the current flowing through 3 is indicated by an arrow C, and the direction of the current flowing through the second conductive portion 4 is indicated by an arrow D).

Further, a current in a direction different from the predetermined direction (for example, the B direction in FIG. 2) is supplied to the electromagnet portion 60 of the electromagnetic relay 1 in the restored state, and the rotating block 70 is moved to the rotating shaft 71 of the rotating block 70. Rotate counterclockwise when viewed from the extension 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, and the first movable contact point is reached. The portion 32 is brought into contact with the first fixed contact portion 21, the second movable member 100 is moved toward the fourth side wall 114 of the base 11, and the second movable contact portion 52 is brought into the second fixed contact portion 41. Make contact with it.

The electromagnetic relay 1 includes a first movable contact piece 31 and a second movable contact piece 51, the first movable contact piece 31 extends in a direction intersecting the plate thickness direction, and a first movable contact portion 32 is provided. It has a first surface 311 and a second surface 312 facing the first surface 311 and facing the inner terminal 502 of the second movable contact piece 51 and the second movable contact side terminal 50 in the plate thickness direction thereof. A third surface 511 in which the second movable contact piece 51 extends in a direction intersecting the plate thickness direction and faces the inner terminal 302 of the first movable contact piece 31 and the first movable contact side terminal 30, and the plate thickness direction thereof. It has a fourth surface 512 that faces the third surface 511 and is provided with a second movable contact portion 52. Further, the currents flowing through the first movable contact piece 31 and the second movable contact piece 51 flow in opposite directions to each other. Therefore, when energized, an electromagnetic repulsive force acts on the first movable contact piece 31 and the second movable contact piece 51 in the direction in which the movable contact portions 32 and 52 approach the corresponding fixed contact portions 21 and 41. 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. As a result, the contact reliability of the movable contact portions 32 and 52 with respect to the corresponding fixed contact portions 21 and 41 can be improved.

Further, it is arranged so as to have a gap between the first movable contact piece 31 and covers at least a part of the first surface 311 of the first movable contact piece 31 to collect the magnetic flux from the first movable contact piece 31. One magnetic flux collecting piece 80 is provided. The first magnetic collecting piece 80 collects magnetic flux spreading from the first movable contact piece 31 to its surroundings, and is generated between the first movable contact piece 31 and the second movable contact piece 51 and the second movable contact side terminal 50. The electromagnetic repulsive force to be applied can be increased to increase the contact pressure of the first movable contact portion 32 with respect to the first fixed contact portion 21. As a result, the contact reliability of the first movable contact portion 32 with respect to the first fixed contact portion 21 can be improved.

Further, in the electromagnetic relay 1, the second movable contact piece 51 is arranged so as to have a gap between the electromagnetic relay 1 and the second movable contact piece 51 so as to cover at least a part of the fourth surface 512 of the second movable contact piece 51. A second magnetic collecting piece 180 that collects magnetic flux from the magnetic flux is provided. The second magnetic collecting piece 180 collects magnetic flux spreading around the second movable contact piece 51, and is generated between the second movable contact piece 51, the first movable contact piece 31, and the first movable contact side terminal 30. The electromagnetic repulsive force to be applied can be increased to increase the contact pressure of the second movable contact portion 52 with respect to the second fixed contact portion 41. As a result, the contact reliability of the second movable contact portion 52 with respect to the second fixed contact portion 41 can be improved.

Further, the first magnetic flux collecting piece 80 is connected to a horizontal plate portion 81 that covers at least a part of the first surface 311 of the first movable contact piece 31, and a horizontal plate portion 81, and is connected to the first surface 311 and the second surface 312. It has a vertical plate portion 82 that intersects with and covers at least a part of the side surface extending in the extending direction of the first movable contact piece 31 and collects the magnetic flux from the first movable contact piece 31. Therefore, more magnetic flux spreading from the first movable contact piece 31 to the periphery thereof can be collected, and the contact pressure of the first movable contact portion 32 with respect to the first fixed contact portion 21 can be surely increased. As a result, the contact reliability of the first movable contact portion 32 with respect to the first fixed contact portion 21 can be improved.

Further, in the electromagnetic relay 1, the horizontal plate portion 181 covering at least a part of the fourth surface 512 of the second movable contact piece 51 is connected to the horizontal plate portion 181 and intersects the third surface 511 and the fourth surface 512. It also has a vertical plate portion 182 that covers at least a part of the side surface extending in the extending direction of the second movable contact piece 51 and collects the magnetic flux from the second movable contact piece 51. Therefore, it is possible to collect more magnetic flux spreading around the second movable contact piece 51 and surely increase the contact pressure of the second movable contact portion 52 with respect to the second fixed contact portion 41. As a result, the contact reliability of the second movable contact portion 52 with respect to the second fixed contact portion 41 can be improved.

Further, a first auxiliary magnetic collecting piece 83 that covers at least a part of the first movable contact side terminal 30 and collects the magnetic flux from the first movable contact side terminal 30 is further provided. The first auxiliary magnetic collecting piece 83 collects magnetic flux spreading from the inner terminal 302 of the first movable contact side terminal 30 to the periphery thereof, and collects the magnetic flux spreading around the first movable contact side terminal 30, the second movable contact piece 51, and the second movable contact side. The electromagnetic repulsive force generated between the terminal 50 and the terminal 50 can be increased to increase the contact pressure of the first movable contact portion 32 with respect to the first fixed contact portion 21. As a result, the contact reliability of the first movable contact portion 32 with respect to the first fixed contact portion 21 can be improved.

Further, a second auxiliary magnetic collecting piece 183 that covers at least a part of the second movable contact side terminal 50 and collects the magnetic flux from the second movable contact side terminal 50 is further provided. The second auxiliary magnetic collecting piece 183 collects magnetic flux spreading around the inner terminal 502 of the second movable contact side terminal 50, and collects the magnetic flux spreading around the second movable contact side terminal 50, the first movable contact piece 31, and the first movable contact side. The electromagnetic repulsive force generated between the terminal 30 and the terminal 30 can be increased to increase the contact pressure of the second movable contact portion 52 with respect to the second fixed contact portion 41. As a result, the contact reliability of the second movable contact portion 52 with respect to the second fixed contact portion 41 can be improved.

In the electromagnetic relay 1, the circuit composed of 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 40 and the second movable A circuit composed of a contact side terminal 50 and a second movable contact piece 51 is provided, but the present invention is not limited to this. The number of circuits may be a plurality, and may be configured to have three or more circuits.

Further, the first movable contact piece 31 may be configured to face at least one of the second movable contact contact piece 51 and the inner terminal 502 of the second movable contact side terminal 50, and the second movable contact piece 31 may be second movable. The contact piece 51 may be configured to face at least one of the first movable contact piece 31 and the inner terminal 302 of the first movable contact terminal 30.

Further, in the electromagnetic relay 1, the first movable contact piece 31 is provided with the first magnetic collecting piece 80, the first movable contact side terminal 30 is provided with the first auxiliary magnetic collecting piece 83, and the second movable contact piece is provided. The second magnetic collecting piece 180 is provided in 51, and the second auxiliary magnetic collecting piece 183 is provided in the second movable contact side terminal 50, but the present invention is not limited to this. Only one of the first magnetic collecting piece 80 and the first auxiliary magnetic collecting piece 83 or the second magnetic collecting piece 180 and the second auxiliary magnetic collecting piece 183 may be provided. When three or more movable contact pieces and movable contact side terminals are provided, a magnetic collector piece and an auxiliary magnetic collector piece may be provided in any one set of the provided movable contact piece and the movable contact side terminal. Alternatively, a magnetic collecting piece and an auxiliary magnetic collecting piece may be provided in any one or more sets of the provided movable contact piece and the movable contact side terminal, or all of the provided movable contact piece and the movable contact side terminal. A magnetic collecting piece and an auxiliary magnetic collecting piece may be provided in the set. Further, only the first magnetic collecting piece 80 and / or the second magnetic collecting piece 180 may be provided, or only the first auxiliary magnetic collecting piece 83 and / or the second auxiliary magnetic collecting piece 183 may be provided. When only the first magnetic collecting piece 80 and / or the second magnetic collecting piece 180 is provided, for example, the housing 10 is provided with a holding portion for holding the first magnetic collecting piece 80 and / or the second magnetic collecting piece 180. Just do it.

Further, the first magnetic collecting piece 80 is not limited to the case where the horizontal plate portion 81 and the vertical plate portion 82 are provided. For example, as shown in FIG. 7, it may be configured to have only the horizontal plate portion 81. Although not shown, the second magnetic collecting piece 180 may be similarly configured to have only the horizontal plate portion 181.

Further, as shown in FIG. 8, the first magnetic collecting piece 80 is an auxiliary horizontal plate that covers at least a part of the second surface 312 of the first movable contact piece 31 in addition to the horizontal plate portion 81 and the vertical plate portion 82. It may have a part 84. The auxiliary horizontal plate portion 84 is arranged so as to face the horizontal plate portion 81, and each vertical plate portion 82 is connected to both ends in the width direction (X direction in FIG. 8). That is, the first magnetic collecting piece 80 has the horizontal plate portion 81, the two vertical plate portions 82, and the auxiliary horizontal plate portion 84 in the extending direction of the first movable contact piece 31 (that is, the Y direction in FIG. 8). The first movable contact piece 31 in the above is surrounded by a gap 801. As a result, more magnetic flux spreading from the first movable contact piece 31 to the periphery thereof can be collected, and the contact pressure of the first movable contact portion 32 with respect to the first fixed contact portion 21 can be surely increased. As a result, the contact reliability of the first movable contact portion 32 with respect to the first fixed contact portion 21 can be improved. Although not shown, the second magnetic collecting piece 180 may be similarly configured to have only the auxiliary horizontal plate portion.

Further, the first auxiliary magnetic collecting piece 83 may be configured to surround the circumference of the first movable contact side terminal 30 in the extending direction of the inner terminal 302 of the first movable contact side terminal 30, or may be configured to surround the circumference of the first movable contact side terminal 30. The magnetic collecting piece 183 may be configured to surround the circumference of the second movable contact side terminal 50 in the extending direction of the second movable contact side terminal 50. As a result, more magnetic flux spreading around the first movable contact side terminal 30 and / or the second movable contact side terminal 50 is collected, and the contact pressure of the first movable contact portion 32 with respect to the first fixed contact portion 21 and / or. Alternatively, the contact pressure of the second movable contact portion 52 with respect to the second fixed contact portion 41 can be reliably increased. As a result, the contact reliability of the first movable contact portion 32 with respect to the first fixed contact portion 21 and / or the contact reliability of the second movable contact portion 52 with respect to the second fixed contact portion 41 can be improved. The first auxiliary magnetic collecting piece 83 and the second auxiliary magnetic collecting piece 183 may be provided so as to be in contact with the first movable contact side terminal 30 and the second movable contact side terminal 50, or may be provided with a gap. You may.

Although various embodiments of the present invention have been described in detail with reference to the drawings, finally, various aspects of the present invention will be described.

The electromagnetic relay according to the first aspect of the present invention is
A box-shaped insulating housing with an internal housing,
A plate-shaped first fixed contact side terminal that is fixed to the housing, extends from the outside of the housing to the housing portion, and has a first fixed contact portion located in the housing portion.
A plate-shaped first movable contact side terminal that is fixed to the housing, extends from the outside of the housing to the housing portion, and is electrically arranged independently of the first fixed contact side terminal. ,
The first fixed contact portion is arranged in the accommodating portion, extends from the first movable contact side terminal toward the first fixed contact side terminal, and is electrically connected to the first movable contact side terminal. A plate-shaped first movable contact piece having a first movable contact portion facing the surface and elastically deforming in the contact / separation direction in which the first movable contact portion contacts or opens with respect to the first fixed contact portion.
It is fixed to the housing, extends from the outside of the housing to the housing portion, and is electrically and independently arranged with respect to the first fixed contact side terminal and the first movable contact side terminal, and the housing portion. A plate-shaped second fixed contact side terminal having a second fixed contact portion located at
It is fixed to the housing, extends from the outside of the housing to the housing portion, and is electrically connected to the first fixed contact side terminal, the first movable contact side terminal, and the second fixed contact side terminal. The plate-shaped second movable contact side terminal, which is independently arranged in the housing,
The first movable contact piece is arranged in the accommodating portion adjacent to the first movable contact piece in the plate thickness direction, extends from the second movable contact side terminal toward the second fixed contact side terminal, and is said to be the first. 2 It is electrically connected to the movable contact side terminal and has a second movable contact portion facing the second fixed contact portion, and the second movable contact portion has the second movable contact portion with respect to the second fixed contact portion. A plate-shaped second movable contact piece that elastically deforms in the contact / separation direction,
With
The first movable contact piece extends in a direction intersecting the plate thickness direction and is provided with the first movable contact portion, and the second movable contact piece and the first movable contact piece are opposed to the first surface and are provided with the first movable contact portion. 2 It has a second surface facing at least one of the movable contact side terminals, and has
The second movable contact piece extends on a third surface extending in a direction intersecting the plate thickness direction and facing at least one of the first movable contact piece and the first movable contact side terminal, and the third surface. It has a fourth surface that faces each other and is provided with the second movable contact portion.
The first fixed contact side terminal or the first movable contact side terminal arranged on one side of the first movable contact piece in the extending direction of the first movable contact piece intersecting with the first movable contact piece. Is a terminal to which an electric current is supplied, and the second fixed contact side terminal or the first fixed contact side terminal arranged on the other side of the first movable contact piece in the extending direction with respect to the second movable contact piece. 2 The movable contact side terminal is a terminal to which an electric current is supplied.

According to the electromagnetic relay of the first aspect, the first movable contact piece and the second movable contact piece are provided, the first movable contact piece extends in a direction intersecting the plate thickness direction, and the first movable contact portion is provided. It has a first surface and a second surface facing the first surface and facing at least one of a second movable contact piece and a second movable contact side terminal, and the second movable contact piece has a plate thickness thereof. A third surface extending in a direction intersecting the directions and facing at least one of the first movable contact piece and the first movable contact side terminal, and a fourth surface facing the third surface and provided with a second movable contact portion. Has a surface. Further, the directions of the currents flowing through the first movable contact piece and the second movable contact piece are different from each other. Therefore, when energized, an electromagnetic repulsive force acts on the first movable contact piece and the second movable contact piece in the direction in which each movable contact portion approaches the corresponding fixed contact portion, and the corresponding fixing of each movable contact portion. The contact pressure with respect to the contact portion can be increased. As a result, the contact reliability of each movable contact portion with respect to the corresponding fixed contact portion can be improved.

The electromagnetic relay according to the second aspect of the present invention is
It is provided in the accommodating portion and is arranged so as to have a gap between the first movable contact piece and the first movable contact piece so as to cover at least a part of the first surface of the first movable contact piece. It is further equipped with a magnetic flux collecting piece that collects the magnetic flux of.

According to the electromagnetic relay of the second aspect, the magnetic collecting piece collects the magnetic flux spreading from the first movable contact piece to the surroundings, and between the first movable contact piece, the second movable contact piece, and the second movable contact side terminal. It is possible to increase the electromagnetic repulsive force generated in the first movable contact portion to increase the contact pressure of the first movable contact portion with respect to the first fixed contact portion. As a result, the contact reliability of the first movable contact portion with respect to the first fixed contact portion can be improved.

The electromagnetic relay according to the third aspect of the present invention is
The magnetic collecting piece
A horizontal plate portion that covers at least a part of the first surface of the first movable contact piece, and
The magnetic flux from the first movable contact piece, which is connected to the horizontal plate portion, intersects the first surface and the second surface, and covers at least a part of the side surface extending in the extending direction of the first movable contact piece. It has a vertical plate part to collect the magnetic flux.

According to the electromagnetic relay of the third aspect, it is possible to collect more magnetic flux spreading around the first movable contact piece and surely increase the contact pressure of the first movable contact portion with respect to the first fixed contact portion. As a result, the contact reliability of the first movable contact portion with respect to the first fixed contact portion can be improved.

The electromagnetic relay according to the fourth aspect of the present invention is
The magnetic collecting piece is connected to the vertical plate portion, covers at least a part of the second surface of the first movable contact piece, and has an auxiliary horizontal plate portion that collects magnetic flux from the first movable contact piece. ing.

According to the electromagnetic relay of the fourth aspect, the first movable contact piece 31 is surrounded by a horizontal plate portion, a vertical plate portion, and an auxiliary horizontal plate portion. As a result, more magnetic flux spreading from the first movable contact piece to its surroundings can be collected, and the contact pressure of the first movable contact portion with respect to the first fixed contact portion can be surely increased. As a result, the contact reliability of the first movable contact portion with respect to the first fixed contact portion can be improved.

The electromagnetic relay according to the fifth aspect of the present invention is
An auxiliary magnetic collecting piece that covers at least a part of the first movable contact side terminal and collects magnetic flux from the first movable contact side terminal is further provided.

According to the electromagnetic relay of the fifth aspect, the auxiliary magnetic collecting piece collects the magnetic flux spreading from the first movable contact side terminal to the surroundings, and the first movable contact side terminal, the second movable contact piece, and the second movable contact side terminal. It is possible to increase the electromagnetic repulsive force generated between the first movable contact portion and the first movable contact portion to increase the contact pressure with respect to the first fixed contact portion. As a result, the contact reliability of the first movable contact portion with respect to the first fixed contact portion can be improved.

By appropriately combining any of the various embodiments or modifications, the effects of each can be achieved. In addition, it is possible to combine embodiments or examples, or between embodiments and examples, and it is also possible to combine features in different embodiments or examples.

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

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 Accommodating part 20 1st fixed contact side terminal 201 Outer terminal 202 Inner terminal 21 1st fixed contact part 30 1st movable contact side terminal 301 Outer terminal 302 Inner terminal 303 End 31 1st movable contact piece 32 1st movable contact part 33 Curved part 40 2nd fixed contact side terminal 401 Outer terminal 402 Inner terminal 41 2nd fixed contact part 50 Second movable contact side terminal 501 Outer terminal 502 Inner terminal 503 End 51 Second movable contact piece 52 Second movable contact 53 Curved 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 1st arm 722 2nd arm 73 Permanent magnet 74 1st iron piece 741 1st end 742 2 end 75 2nd iron piece 751 1st end 752 2nd end 80 1st magnetic collection piece 81 Horizontal plate 82 Vertical plate 83 1st auxiliary magnetic collection piece 84 Auxiliary horizontal plate 180 2nd magnetic collection piece 181 Horizontal plate part 182 Vertical plate part 183 Second auxiliary magnetizing piece 90 First movable member 100 Second movable member CL winding center axis

Claims (5)

A box-shaped insulating housing with an internal housing,
A plate-shaped first fixed contact side terminal that is fixed to the housing, extends from the outside of the housing to the housing portion, and has a first fixed contact portion located in the housing portion.
A plate-shaped first movable contact side terminal that is fixed to the housing, extends from the outside of the housing to the housing portion, and is electrically arranged independently of the first fixed contact side terminal. ,
The first fixed contact portion is arranged in the accommodating portion, extends from the first movable contact side terminal toward the first fixed contact side terminal, and is electrically connected to the first movable contact side terminal. A plate-shaped first movable contact piece having a first movable contact portion facing the surface and elastically deforming in the contact / separation direction in which the first movable contact portion contacts or opens with respect to the first fixed contact portion.
It is fixed to the housing, extends from the outside of the housing to the housing portion, and is electrically and independently arranged with respect to the first fixed contact side terminal and the first movable contact side terminal, and the housing portion. A plate-shaped second fixed contact side terminal having a second fixed contact portion located at
It is fixed to the housing, extends from the outside of the housing to the housing portion, and is electrically connected to the first fixed contact side terminal, the first movable contact side terminal, and the second fixed contact side terminal. The plate-shaped second movable contact side terminal, which is independently arranged in the housing,
The first movable contact piece is arranged in the accommodating portion adjacent to the first movable contact piece in the plate thickness direction, extends from the second movable contact side terminal toward the second fixed contact side terminal, and is said to be the first. 2 It is electrically connected to the movable contact side terminal and has a second movable contact portion facing the second fixed contact portion, and the second movable contact portion has the second movable contact portion with respect to the second fixed contact portion. A plate-shaped second movable contact piece that elastically deforms in the contact / separation direction,
With
The first movable contact piece extends in a direction intersecting the plate thickness direction and is provided with the first movable contact portion, and the second movable contact piece and the first movable contact piece are opposed to the first surface and are provided with the first movable contact portion. 2 It has a second surface facing at least one of the movable contact side terminals, and has
The second movable contact piece extends on a third surface extending in a direction intersecting the plate thickness direction and facing at least one of the first movable contact piece and the first movable contact side terminal, and the third surface. It has a fourth surface that faces each other and is provided with the second movable contact portion.
The first fixed contact side terminal or the first movable contact side terminal arranged on one side of the first movable contact piece in the extending direction of the first movable contact piece intersecting with the first movable contact piece. Is a terminal to which an electric current is supplied, and the second fixed contact side terminal or the first fixed contact side terminal arranged on the other side of the first movable contact piece in the extending direction with respect to the second movable contact piece. 2 movable contact side terminal, Ri Ah at terminal current is supplied,
The first conductive portion composed of the first fixed contact side terminal, the first movable contact side terminal, and the first movable contact piece, the second fixed contact side terminal, and the second movable contact side terminal. and, wherein the second conductive portion composed of the second movable contact piece, opposite the direction of the current Ru flows mutually electromagnetic relay. It is provided in the accommodating portion and is arranged so as to have a gap between the first movable contact piece and the first movable contact piece so as to cover at least a part of the first surface of the first movable contact piece. The electromagnetic relay according to claim 1, further comprising a magnetic collecting piece for collecting the magnetic flux of the above. The magnetic collecting piece
A horizontal plate portion that covers at least a part of the first surface of the first movable contact piece, and
The magnetic flux from the first movable contact piece, which is connected to the horizontal plate portion, intersects the first surface and the second surface, and covers at least a part of the side surface extending in the extending direction of the first movable contact piece. The electromagnetic relay according to claim 2, which has a vertical plate portion for collecting the magnetic flux. The magnetic collecting piece is connected to the vertical plate portion, covers at least a part of the second surface of the first movable contact piece, and has an auxiliary horizontal plate portion that collects magnetic flux from the first movable contact piece. The electromagnetic relay according to claim 3. The electromagnetic relay according to any one of claims 1 to 4, further comprising an auxiliary magnetic collector piece that covers at least a part of the first movable contact side terminal and collects magnetic flux from the first movable contact side terminal.

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