Electromagnetic relay

Abstract

To improve heat dissipation in a fixed terminal, while preventing an increase in size of an electromagnetic relay.SOLUTION: An electromagnetic relay comprises a housing, a movable contact piece, a first fixed terminal, and a drive unit. The movable contact piece is disposed inside the housing. The first fixed terminal includes a first contact part and a first terminal part. The first contact part faces the movable contact piece inside the housing. The first terminal part protrudes to the outside of the housing. The first terminal part has a bent shape. The drive unit moves the movable contact piece in a contact direction and in a separating direction.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to an electromagnetic relay.

Background Art

[0002] An electromagnetic relay includes a fixed terminal, a movable contact piece, and a housing. The fixed terminal protrudes from inside the housing to the outside of the housing. The movable contact piece is provided so as to be movable in a contact direction and a separation direction. The contact direction is the direction in which the movable contact piece contacts the fixed terminal. The separation direction is the direction in which the movable contact piece separates from the fixed terminal. When the movable contact piece contacts the fixed terminal, current flows through the fixed terminal.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When a large current flows through an electromagnetic relay, the amount of heat generated at the fixed terminal increases. Therefore, it is desirable to improve the heat dissipation performance by increasing the surface area of the fixed terminal. However, if the fixed terminal becomes larger in order to increase the surface area of the fixed terminal, the electromagnetic relay will become larger. An object of the present invention is to improve the heat dissipation performance at the fixed terminal while suppressing the increase in size of the electromagnetic relay.

Means for Solving the Problems

[0005] An electromagnetic relay according to one aspect of the present invention includes a housing, a movable contact piece, a first fixed terminal, and a driving device. The movable contact piece is disposed within the housing. The first fixed terminal includes a first contact portion and a first terminal portion. The first contact portion faces the movable contact piece within the housing. The first terminal portion protrudes outside the housing. The first terminal portion has a bent shape. The driving device moves the movable contact piece in a contact direction and a separation direction. The contact direction is the direction in which the movable contact piece contacts the first contact portion. The separation direction is the direction in which the movable contact piece separates from the first contact portion.

[0006] In the electromagnetic relay according to this aspect, the first terminal portion of the first fixed terminal has a bent shape. Therefore, the surface area of the first fixed terminal increases, and the heat dissipation performance of the first fixed terminal is improved. Further, the first terminal portion is bent outside the housing. Therefore, an increase in the size of the electromagnetic relay can be suppressed.

[0007] The first fixed terminal may extend in the vertical direction from the first contact portion toward the first terminal portion. The first terminal portion may have a shape bent in a direction perpendicular to the vertical direction. In this case, outside the housing, the convection of air easily hits the first terminal portion. Thereby, the heat dissipation performance of the first fixed terminal is improved.

[0008] The first terminal portion may include a first flat portion and a first bent portion. The first bent portion may be bent with respect to the first flat portion. In this case, due to the first bent portion, the surface area of the first fixed terminal increases. Thereby, the heat dissipation performance of the first fixed terminal is improved.

[0009] The first flat portion and the first bent portion may be integrally formed. In this case, by bending an integral member, the first flat portion and the first bent portion can be easily formed. Therefore, the manufacturing of the first fixed terminal is easy.

[0010] The housing may include a base that supports the first fixed terminal. The base may include a bottom surface and legs. The legs may protrude from the bottom surface. At least a part of the first bent portion may be located between the bottom surface and the lower ends of the legs. In this case, when the electromagnetic relay is attached to the substrate, the legs contact the substrate, thereby securing a space between the bottom surface of the base and the substrate. And at least a part of the first bent portion is disposed in the space between the bottom surface of the base and the substrate. Thereby, the heat dissipation of the first fixed terminal is improved.

[0011] The lower end of the first bent portion may be located below the lower ends of the legs. In this case, the first bent portion is connected to the substrate. Thereby, the heat dissipation of the first fixed terminal is improved.

[0012] The electromagnetic relay may further include a second fixed terminal. The second fixed terminal may include a second contact portion and a second terminal portion. The second contact portion may face the movable contact piece within the housing. The second terminal portion may protrude outside the housing. The second terminal portion may have a bent shape.

[0013] In this case, the second terminal portion of the second fixed terminal has a bent shape. Therefore, the surface area of the second fixed terminal becomes larger, and the heat dissipation of the second fixed terminal is improved. Also, the second terminal portion is bent outside the housing. Therefore, the enlargement of the electromagnetic relay is suppressed.

[0014] The second terminal portion may include a second flat portion and a second bent portion. The second bent portion may be bent with respect to the second flat portion. In this case, the second bent portion increases the surface area of the second fixed terminal. Thereby, the heat dissipation of the second fixed terminal is improved.

[0015] The first bent portion and the second bent portion may have a bent shape in the same direction with respect to the first flat portion and the second flat portion. In this case, the first terminal portion and the second terminal portion are arranged compactly.

[0016] The first bent portion and the second bent portion may have shapes bent in directions opposite to each other with respect to the first flat portion and the second flat portion. In this case, convection of air is likely to hit each of the first terminal portion and the second terminal portion. Thereby, the heat dissipation performance of the first fixed terminal and the second fixed terminal is improved.

[0017] The first terminal portion may further include a third bent portion. The third bent portion may be bent with respect to the first flat portion in the same direction as the first bent portion. In this case, the surface area of the first fixed terminal is further increased by the third bent portion. Thereby, the heat dissipation performance of the first fixed terminal is improved. Further, the first bent portion and the third bent portion are arranged compactly.

[0018] The third bent portion may be bent with respect to the first flat portion in a direction opposite to the first bent portion. In this case, convection of air is likely to hit each of the first bent portion and the third bent portion. Thereby, the heat dissipation performance of the first fixed terminal is improved.

Effect of the Invention

[0019] According to the present invention, while suppressing an increase in the size of the electromagnetic relay, the heat dissipation performance of the fixed terminal is improved.

Brief Description of the Drawings

[0020]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9A

Figure 9B

Figure 9C

Figure 10A

Figure 10B

Figure 10C

Embodiments for Carrying Out the Invention

[0021] Hereinafter, the electromagnetic relay 1 according to the embodiment will be described with reference to the drawings. FIG. 1 is an external perspective view of the electromagnetic relay 1 according to the embodiment. FIG. 2 is an internal perspective view of the electromagnetic relay 1. FIGS. 3 and 4 are top views of the inside of the electromagnetic relay 1.

[0022] The electromagnetic relay 1 includes a contact device 2, a housing 3, and a drive device 4. The contact device 2 and the drive device 4 are arranged inside the housing 3. The housing 3 includes a base 11 and a case 12. In FIGS. 2 to 4, the case 12 is omitted. The base 11 supports the contact device 2 and the drive device 4.

[0023] In the following description, the direction from the base 11 toward the contact device 2 and the drive device 4 is defined as upward, and the opposite direction is defined as downward. The direction from the drive device 4 toward the contact device 2 is defined as forward, and the opposite direction is defined as backward. The direction perpendicular to the vertical direction and the front-rear direction is defined as the left-right direction.

[0024] The contact device 2 includes a first fixed terminal 13, a second fixed terminal 14, a first movable contact piece 15, a second movable contact piece 16, and a moving member 17. The first fixed terminal 13 and the second fixed terminal 14 are formed of a conductive material such as copper. The first fixed terminal 13 and the second fixed terminal 14 each extend in the vertical direction.

[0025] The first fixed terminal 13 and the second fixed terminal 14 are arranged apart from each other in the left - right direction. The first fixed terminal 13 and the second fixed terminal 14 each extend in the up - down direction. The first fixed terminal 13 and the second fixed terminal 14 are fixed to the base 11. The first fixed terminal 13 and the second fixed terminal 14 protrude from inside the housing 3 to the outside of the housing 3. The first fixed terminal 13 and the second fixed terminal 14 protrude downward from the base 11.

[0026] The first fixed terminal 13 is connected to the first fixed contact 21 and the third fixed contact 23. The second fixed terminal 14 is connected to the second fixed contact 22 and the fourth fixed contact 24. The first to fourth fixed contacts 21 - 24 are formed of a conductive material such as silver or copper, for example.

[0027] The first movable contact piece 15 and the second movable contact piece 16 extend in the left - right direction. The first movable contact piece 15 and the second movable contact piece 16 are separate from each other. The first movable contact piece 15 and the second movable contact piece 16 are formed of a conductive material such as copper, for example.

[0028] The first movable contact piece 15 is arranged facing the first fixed terminal 13 and the second fixed terminal 14. The first movable contact piece 15 is connected to the first movable contact 25 and the second movable contact 26. The first movable contact 25 is arranged facing the first fixed contact 21. The second movable contact 26 is arranged facing the second fixed contact 22.

[0029] The second movable contact piece 16 is arranged facing the first fixed terminal 13 and the second fixed terminal 14. The second movable contact piece 16 is connected to the third movable contact 27 and the fourth movable contact 28. The third movable contact 27 is arranged facing the third fixed contact 23. The fourth movable contact 28 is arranged facing the fourth fixed contact 24. The first to fourth movable contacts 25 - 28 are formed of a conductive material such as silver or copper, for example.

[0030] The moving member 17 holds the first movable contact piece 15 and the second movable contact piece 16. The moving member 17 is made of resin with electrical insulation properties. The moving member 17 is movable in the front-rear direction. The moving member 17 is movable between a closed position and an open position. In FIG. 3, the moving member 17 is located at the open position. When the moving member 17 is at the open position, the movable contacts 25-28 are separated from the fixed contacts 21-24 respectively. In FIG. 4, the moving member 17 is located at the closed position. When the moving member 17 is at the closed position, the movable contacts 25-28 are in contact with the fixed contacts 21-24 respectively.

[0031] The driving device 4 moves the first movable contact piece 15 and the second movable contact piece 16 by electromagnetic force. The driving device 4 moves the first movable contact piece 15 and the second movable contact piece 16 in the contact direction and the separation direction. The contact direction is the direction in which the movable contacts 25-28 contact the fixed contacts 21-24. The separation direction is the direction in which the movable contacts 25-28 separate from the fixed contacts 21-24. In this embodiment, the contact direction is rearward and the separation direction is forward.

[0032] The driving device 4 includes a coil 31, a spool 32, a movable iron core 33, a fixed iron core 34, and a yoke 35. The coil 31 is wound around the spool 32. At least a part of the movable iron core 33 is arranged inside the spool 32. The movable iron core 33 is provided movably in the front-rear direction. The fixed iron core 34 is arranged inside the spool 32. The fixed iron core 34 is arranged facing the movable iron core 33. The coil 31 generates an electromagnetic force that moves the movable iron core 33 when energized.

[0033] The movable iron core 33 is connected to the moving member 17. The movable iron core 33 moves in the contact direction according to the magnetic force generated from the coil 31. Along with the movement of the movable iron core 33, the moving member 17 moves to the closed position. The yoke 35 is arranged to surround the coil 31. The yoke 35 is arranged on the magnetic circuit formed by the coil 31.

[0034] The electromagnetic relay 1 includes a first return spring 36 and a second return spring 37. The first return spring 36 and the second return spring 37 are disposed between the moving member 17 and the drive device 4. The first return spring 36 and the second return spring 37 bias the moving member 17 in the separating direction.

[0035] Next, the operation of the electromagnetic relay 1 will be described. When the coil 31 is not energized, the drive device 4 is not excited. In this case, the moving member 17, together with the movable iron core 33, is pressed in the separating direction by the elastic forces of the return springs 36 and 37, and the moving member 17 is located at the open position shown in FIG. 3.

[0036] In this state, via the moving member 17, the first movable contact piece 15 and the second movable contact piece 16 are also pressed in the separating direction. Accordingly, when the moving member 17 is at the open position, the first movable contact 25 and the second movable contact 26 are separated from the first fixed contact 21 and the second fixed contact 22. Similarly, when the moving member 17 is at the open position, the third movable contact 27 and the fourth movable contact 28 are separated from the third fixed contact 23 and the fourth fixed contact 24.

[0037] When the coil 31 is energized, the drive device 4 is excited. In this case, due to the electromagnetic force of the coil 31, the movable iron core 33 moves in the contacting direction against the elastic forces of the return springs 36 and 37. Thereby, the moving member 17, the first movable contact piece 15, and the second movable contact piece 16 all move in the contacting direction. Accordingly, as shown in FIG. 4, the moving member 17 moves to the closed position.

[0038] As a result, when the moving member 17 is at the closed position, the first movable contact 25 and the second movable contact 26 respectively contact the first fixed contact 21 and the second fixed contact 22. Similarly, when the moving member 17 is at the closed position, the third movable contact 27 and the fourth movable contact 28 respectively contact the third fixed contact 23 and the fourth fixed contact 24. Thereby, the first movable contact piece 15 and the second movable contact piece 16 are electrically connected to the first fixed terminal 13 and the second fixed terminal 14.

[0039] When the current to the coil 31 is stopped and demagnetized, the movable iron core 33 is pressed in the separating direction by the elastic forces of the return springs 36 and 37. Thereby, the moving member 17, the first movable contact piece 15, and the second movable contact piece 16 all move in the separating direction. Therefore, as shown in FIG. 3, the moving member 17 moves to the open position.

[0040] As a result, when the moving member 17 is in the open position, the first movable contact 25 and the second movable contact 26 are separated from the first fixed contact 21 and the second fixed contact 22. Similarly, when the moving member 17 is in the open position, the third movable contact 27 and the fourth movable contact 28 are separated from the third fixed contact 23 and the fourth fixed contact 24.

[0041] When a large current flows in the electromagnetic relay 1, the first and second fixed terminals 13 and 14 and the first and second movable contact pieces 15 and 16 become hot. In order to improve the heat dissipation of the electromagnetic relay 1 according to the present embodiment, as shown in FIG. 5, the first fixed terminal 13 and the second fixed terminal 14 have a bent shape. Hereinafter, the structures of the first fixed terminal 13 and the second fixed terminal 14 will be described in detail.

[0042] FIG. 6 is a bottom view of the electromagnetic relay 1. FIG. 7 is a side view of the inside of the electromagnetic relay 1. FIG. 8 is a perspective view of the first fixed terminal 13. As shown in FIGS. 5 to 8, the first fixed terminal 13 includes a first contact portion 51 and a first terminal portion 52. The first contact portion 51 is disposed inside the housing 3. The first contact portion 51 extends upward from the base 11. The first contact portion 51 faces the movable contact pieces 15 and 16. The first fixed contact 21 and the third fixed contact 23 are attached to the first contact portion 51.

[0043] The first terminal portion 52 is disposed outside the housing 3. The first terminal portion 52 protrudes from the bottom surface 47 of the base 11. The first terminal portion 52 extends downward from the bottom surface 47 of the base 11. The first terminal portion 52 has a shape bent in the horizontal direction. The first terminal portion 52 has an L-shaped bent shape.

[0044] Specifically, the first terminal portion 52 includes a first flat portion 53 and a first bent portion 54. The first contact portion 51, the first flat portion 53, and the first bent portion 54 are integrally formed. For example, the first contact portion 51, the first flat portion 53, and the first bent portion 54 are formed by bending a single metal plate. The first flat portion 53 is connected to the first contact portion 51. The first flat portion 53 extends downward from the first contact portion 51.

[0045] The first bent portion 54 is connected to the first flat portion 53. The first bent portion 54 is disposed inside the first flat portion 53 in the left - right direction. The first bent portion 54 is bent with respect to the first flat portion 53. The first bent portion 54 is bent rearward. The first bent portion 54 extends rearward from the first flat portion 53.

[0046] As shown in FIGS. 1 and 5, the base 11 includes a plurality of leg portions 43 - 46. The plurality of leg portions 43 - 46 protrude downward from the bottom surface 47 of the base 11. As shown in FIG. 7, the plurality of leg portions 43 - 46 contact the substrate 100 to which the electromagnetic relay 1 is attached.

[0047] As shown in FIG. 7, a part of the first bent portion 54 is located between the bottom surface 47 and the lower ends 431, 441 of the leg portions 43, 44. The upper end 55 of the first bent portion 54 is located below the bottom surface 47. The lower end 56 of the first bent portion 54 is located below the lower ends 431, 441 of the leg portions 43, 44. The first terminal portion 52 is connected to the substrate 100. The first flat portion 53 and the first bent portion 54 are connected to the substrate 100.

[0048] The second fixed terminal 14 has a shape bent in the same manner as the first fixed terminal 13. The second fixed terminal 14 includes a second contact portion 61 and a second terminal portion 62. The second contact portion 61 is disposed inside the housing 3. The second contact portion 61 extends upward from the base 11. The second contact portion 61 faces the movable contact pieces 15, 16. A second fixed contact 22 and a fourth fixed contact 24 are attached to the second contact portion 61.

[0049] The second terminal portion 62 is disposed outside the housing 3. The second terminal portion 62 protrudes from the bottom surface 47 of the base 11. The second terminal portion 62 extends downward from the bottom surface 47 of the base 11. As shown in FIG. 6, the second terminal portion 62 has a shape bent in the same direction as the first terminal portion 52. The second terminal portion 62 has an L-shaped bent shape. The second terminal portion 62 has a shape symmetric with the first terminal portion 52 about the left-right direction.

[0050] Specifically, the second terminal portion 62 includes a second flat portion 63 and a second bent portion 64. The second contact portion 61, the second flat portion 63, and the second bent portion 64 are integrally formed. The second flat portion 63 is connected to the second contact portion 61. The second flat portion 63 extends downward from the second contact portion 61.

[0051] The second bent portion 64 is connected to the second flat portion 63. The second bent portion 64 is disposed inside the second flat portion 63 in the left-right direction. The second bent portion 64 faces the first bent portion 54 in the left-right direction. The second bent portion 64 is bent with respect to the second flat portion 63. The second bent portion 64 is bent in the same direction as the first bent portion 54. The second bent portion 64 is bent rearward.

[0052] The second bent portion 64 extends rearward from the second flat portion 63. The second bent portion 64 is disposed below the bottom surface 47 of the base 11 in the same manner as the first bent portion 54. The second flat portion 63 and the second bent portion 64 are connected to the substrate 100 in the same manner as the first flat portion 53 and the first bent portion 54.

[0053] In the electromagnetic relay 1 according to the embodiment described above, the first terminal portion 52 of the first fixed terminal 13 has a bent shape. Therefore, the surface area of the first fixed terminal 13 increases, and the heat dissipation performance of the first fixed terminal 13 improves. The second terminal portion 62 of the second fixed terminal 14 has a bent shape. Therefore, the surface area of the second fixed terminal 14 increases, and the heat dissipation performance of the second fixed terminal 14 improves. Further, the first terminal portion 52 and the second terminal portion 62 are bent outside the housing 3. Therefore, the size increase of the electromagnetic relay 1 is suppressed.

[0054] Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the invention.

[0055] The structures of the contact device 2 and the drive device 4 are not limited to those of the above embodiment and may be changed. For example, in the above embodiment, the electromagnetic relay 1 is a so-called plunger type, but in other types of electromagnetic relays such as a hinge type, a fixed terminal having the same structure as the first fixed terminal 13 described above may be provided.

[0056] The shapes or arrangements of the first fixed terminal 13, the second fixed terminal 14, the first movable contact piece 15, and the second movable contact piece 16 may be changed. For example, the first movable contact piece 15 and the second movable contact piece 16 may be integrated. That is, the first to fourth movable contacts 25-28 may be connected to the integrated movable contact pieces 15, 16. Alternatively, the second movable contact piece 16, the third and fourth movable contacts 27, 28, and the third and fourth fixed contacts 23, 24 may be omitted.

[0057] The first fixed contact 21 and the third fixed contact 23 may be integrated with the first fixed terminal 13. The first fixed contact 21 and the third fixed contact 23 may be omitted. The second fixed contact 22 and the fourth fixed contact 24 may be integrated with the second fixed terminal 14. The second fixed contact 22 and the fourth fixed contact 24 may be omitted.

[0058] The first movable contact 25 and the second movable contact 26 may be integrated with the first movable contact piece 15. The first movable contact 25 and the second movable contact 26 may be omitted. The third movable contact 27 and the fourth movable contact 28 may be integrated with the second movable contact piece 16. The third movable contact 27 and the fourth movable contact 28 may be omitted.

[0059] The shapes of the first terminal portion 52 and the second terminal portion 62 are not limited to those of the above-described embodiment and may be changed. For example, the first flat portion 53 and the first bent portion 54 may be separate from each other. The second flat portion 63 and the second bent portion 64 may be separate from each other.

[0060] FIG. 9A is a bottom view of the first terminal portion 52 according to the first modification. As shown in FIG. 9A, the first terminal portion 52 may have a U-shaped bent shape. Specifically, the first terminal portion 52 further includes a third bent portion 57. The third bent portion 57 is bent in the same direction as the first bent portion 54.

[0061] FIG. 9B is a bottom view of the first terminal portion 52 according to the second modification. As shown in FIG. 9B, the third bent portion 57 may be bent in a direction opposite to the first bent portion 54.

[0062] FIG. 9C is a bottom view of the first terminal portion 52 according to the third modification. In the above-described embodiment, the first bent portion 54 is bent at 90 degrees with respect to the first flat portion 53. However, as shown in FIG. 9C, the bending angle of the first bent portion 54 may be other than 90 degrees. For example, the bending angle of the first bent portion 54 may be an obtuse angle. Note that the second terminal portion 62 may also have the same shape as the first terminal portion 52 according to the first to third modifications.

[0063] In the above-described embodiment, the first terminal portion 52 and the second terminal portion 62 have shapes that are symmetrical to each other. However, the first terminal portion 52 and the second terminal portion 62 may have shapes that are asymmetrical to each other. For example, FIG. 10A is a bottom view of the first terminal portion 52 and the second terminal portion 62 according to the fourth modification. As shown in FIG. 10A, the first bent portion 54 and the second bent portion 64 may be bent in opposite directions.

[0064] FIG. 10B is a bottom view of the first terminal portion 52 and the second terminal portion 62 according to the fifth modification. As shown in FIG. 10B, the second terminal portion 62 may further include a fourth bent portion 67. The second bent portion 64 and the fourth bent portion 67 may be bent in a direction opposite to the first bent portion 54 and the third bent portion 57.

[0065] FIG. 10C is a bottom view of the first terminal portion 52 and the second terminal portion 62 according to the fifth modification. As shown in FIG. 10C, the shapes of the first terminal portion 52 and the second terminal portion 62 may be different from each other. For example, the bending angle of the first bending portion 54 and the bending angle of the second bending portion 64 may be different from each other.

Industrial Applicability

[0066] According to the present invention, while suppressing the increase in size of the electromagnetic relay, the heat dissipation performance of the fixed terminal is improved.

Explanation of Reference Numerals

[0067] 3: Housing, 4: Driving device, 11: Base, 13: First fixed terminal, 14: Second fixed terminal, 15: First movable contact piece, 43: Leg portion, 51: First contact portion, 52: First terminal portion, 53: First flat portion, 54: First bending portion, 57: Third bending portion, 61: Second contact portion, 62: Second terminal portion, 63: Second flat portion, 64: Second bending portion

Claims

1. A housing, a movable contact piece disposed within the housing, a first fixed terminal including a first contact portion facing the movable contact piece within the housing, and a first terminal portion protruding outside the housing and having a bent shape, a driving device configured to move the movable contact piece in a contact direction and a separation direction, where the contact direction is the direction in which the movable contact piece contacts the first contact portion, and the separation direction is the direction in which the movable contact piece separates from the first contact portion, comprising, wherein the first terminal portion includes a first flat portion, and a first bent portion bent with respect to the first flat portion, and the housing includes a base that supports the first fixed terminal, the base includes a bottom surface and legs protruding from the bottom surface, and at least a part of the first bent portion is located between the bottom surface and the lower ends of the legs, an electromagnetic relay.

2. The first fixed terminal extends vertically from the first contact portion toward the first terminal portion, and the first terminal portion has a shape bent in a direction perpendicular to the vertical direction, The electromagnetic relay according to claim 1.

3. The first flat portion and the first bent portion are integrally formed, The electromagnetic relay according to claim 1 or 2.

4. The lower end of the first bent portion is located below the lower end of the leg, The electromagnetic relay according to any one of claims 1 to 3.

5. The electromagnetic relay further comprises a second fixed terminal including a second contact portion facing the movable contact piece within the housing, and a second terminal portion protruding outside the housing and having a bent shape, The electromagnetic relay according to any one of claims 1 to 4.

6. The second terminal portion includes a second flat portion, and a second bent portion bent with respect to the second flat portion, and The electromagnetic relay according to claim 5.

7. The first bent portion and the second bent portion have a shape bent in the same direction with respect to the first flat portion and the second flat portion, The electromagnetic relay according to claim 6.

8. The first bent portion and the second bent portion have a shape bent in opposite directions with respect to the first flat portion and the second flat portion, The electromagnetic relay according to claim 6.

9. A housing, a movable contact piece disposed within the housing, a first fixed terminal including a first contact portion facing the movable contact piece within the housing, and a first terminal portion protruding outside the housing and having a bent shape, A drive device that moves the movable contact piece in a contact direction and a separation direction, where the contact direction is the direction in which the movable contact piece contacts the first contact portion, and the separation direction is the direction in which the movable contact piece moves away from the first contact portion, comprising The first terminal portion a first flat portion, a first bent portion bent with respect to the first flat portion, including The first terminal portion further includes a third bent portion bent with respect to the first flat portion in the same direction as the first bent portion. Electromagnetic relay.

10. A housing, a movable contact piece disposed within the housing, a first fixed terminal including a first contact portion facing the movable contact piece within the housing and a first terminal portion that protrudes outside the housing and has a bent shape, a drive device that moves the movable contact piece in a contact direction and a separation direction, where the contact direction is the direction in which the movable contact piece contacts the first contact portion, and the separation direction is the direction in which the movable contact piece moves away from the first contact portion, comprising The first terminal portion a first flat portion, a first bent portion bent with respect to the first flat portion, including The first terminal portion further includes a third bent portion bent with respect to the first flat portion in a direction opposite to the first bent portion. Electromagnetic relay.

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