Relay

Abstract

The relay of the present invention comprises a base, a first fixed terminal, a drive device, a first positioning component and a second positioning component. The base comprises a first positioning surface and a second positioning surface. The first fixed terminal is fixed to the base. The drive device is supported by the base. The first positioning component is embedded in the base, and the first fixed terminal is pressed against the first positioning surface to position the first fixed terminal relative to the base. The second positioning component is embedded in the base, and the drive device is pressed against the second positioning surface to position the drive device relative to the base.

Description

Technical Field

[0001] The present invention relates to relays. Background Art

[0002] In the prior art, there is known a relay that uses the magnetic force generated by a coil to open and close a circuit. The relay includes a contact device and a drive device. In the relay disclosed in Japanese Patent Publication No. 2016-110844, the contact device and the drive device are arranged on a base.

[0003] In high-capacity relays, the base is formed of a thermosetting resin from the viewpoint of heat resistance. In this case, if the fixed terminal of the contact device is pressed into the base and fixed, the base will crack or resin chips will be generated, making it difficult to press and fix it to the base. In addition, since it cannot be pressed in, the position of the component is not fixed, and the assembly size will deviate. Summary of the invention

[0004] An object of the present invention is to improve the positioning accuracy of a component arranged on a base.

[0005] A relay according to one embodiment includes a base, a first fixed terminal, a drive device, a first positioning member, and a second positioning member. The base includes a first positioning surface and a second positioning surface. The first fixed terminal is fixed to the base. The drive device is supported by the base. The first positioning member is embedded in the base, and the first fixed terminal is pressed against the first positioning surface to position the first fixed terminal relative to the base. The second positioning member is embedded in the base, and the drive device is pressed against the second positioning surface to position the drive device relative to the base.

[0006] In the relay of this mode, the first fixed terminal and the driving device can be positioned relative to the base by the first positioning member and the second positioning member embedded in the base. Thus, the positioning accuracy of the first fixed terminal and the driving device arranged on the base can be improved. In addition, for example, when the base is formed of a thermosetting resin, it can be fixed without riveting, so that cracks in the base or deformation of the assembled parts due to riveting can be prevented.

[0007] The first positioning member and the second positioning member may be integrated. In this case, the number of components and the number of assembly steps can be reduced.

[0008] The direction in which the first positioning member presses the first fixed terminal may be opposite to the direction in which the second positioning member presses the driving device. In this case, the degree of freedom in design can be increased.

[0009] The drive device may also include a bobbin, a coil wound on the bobbin, and a yoke disposed around the bobbin. The second positioning member may also press the yoke against the second positioning surface. In this case, the drive device can be positioned by pressing the yoke against the second positioning surface.

[0010] The first positioning member may include one or more protrusions that protrude in a direction for positioning the first fixed terminal relative to the base. The first fixed terminal may be pressed against the first positioning surface by the one or more protrusions of the first positioning member.

[0011] The second positioning member may include one or more protrusions that protrude in a direction that positions the drive device relative to the base. The drive device may be pressed against the second positioning surface by the one or more protrusions of the second positioning member.

[0012] The relay may also include a second fixed terminal fixed relative to the base and a third positioning component embedded in the base. The base may also include a third positioning surface. The third positioning component may also press the second fixed terminal against the third positioning surface to position the second fixed terminal relative to the base. In this case, the positioning accuracy of the second fixed terminal can also be improved.

[0013] The first positioning member and the third positioning member may be integrated. In this case, the number of components and the number of assembly steps can be reduced.

[0014] The third positioning member may include one or more protrusions that protrude in a direction to position the third fixed terminal relative to the base. The second fixed terminal may be pressed against the third positioning surface by the one or more protrusions of the third positioning member. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a perspective view of a relay according to the embodiment.

[0016] Figure 2 is a top view of the relay with the moving parts in the open position.

[0017] Figure 3 This is a bottom view of the relay;

[0018] Figure 4 yes Figure 2 Sectional view along line IV-IV.

[0019] Figure 5 yes Figure 2 Part of the VV line cross-sectional view.

[0020] Figure 6 yes Figure 2 Part of the VI-VI cross-sectional view.

[0021] Figure 7 It is a three-dimensional diagram of the moving parts and their surroundings.

[0022] Figure 8 It is a perspective view of the first to third positioning members.

[0023] Fig. 9 It is a bottom view of a relay according to another embodiment.

[0024] Fig.10 It is a bottom view of a relay according to another embodiment.

[0025] Fig.11 It is a bottom view of a relay according to another embodiment. DETAILED DESCRIPTION

[0026] Hereinafter, a relay according to an embodiment will be described with reference to the drawings. Figure 1 It is a perspective view of the relay 1 according to the embodiment. Figure 2 This is a top view of the relay. Figure 3 This is a bottom view of the relay. Figure 4 yes Figure 2 Sectional view along line IV-IV.

[0027] The relay 1 includes a contact device 2 , a housing 3 , a drive device 4 , a first positioning member 5 , a second positioning member 6 , and a third positioning member 7 .

[0028] In addition, in the following description, the direction in which the contact device 2 and the drive device 4 are arranged relative to the base 11 is defined as the upper direction, and the opposite direction is defined as the lower direction. In addition, the prescribed direction intersecting the up-down direction (Z) is defined as the front-back direction (Y). The prescribed direction intersecting the up-down direction (Z) and the front-back direction (Y) is defined as the left-right direction (X). However, these directions are defined for the convenience of description and do not limit the configuration direction of the relay 1.

[0029] The contact device 2 and the drive device 4 are arranged in the housing 3. The housing 3 includes a base 11 and a case 12. The base 11 and the case 12 are made of resin, for example. Figure 1 and Figure 2 In the embodiment, the housing 12 is omitted.

[0030] Figure 5 yes Figure 2 Part of the VV line cross-sectional view. Figure 6 yes Figure 2 Part of the VI-VI cross-sectional view. Figures 3 to 6As shown, the base 11 includes a first insertion hole 11a, a second insertion hole 11b, a third insertion hole 11c and a press-in hole 11d. The first to third insertion holes 11a-11c are holes that penetrate in the up-down direction. The first insertion hole 11a and the third insertion hole 11c are separately arranged in the left-right direction (X). The second insertion hole 11b is arranged near the center of the base 11. The press-in hole 11d is formed by being recessed upward from the lower surface of the base 11. The press-in hole 11d extends in the left-right direction (X) and the front-back direction (Y). The press-in hole 11d is formed in a manner connected to the first to third insertion holes 11a-11c.

[0031] The contact device 2 includes a first fixed terminal 13, a second fixed terminal 14, a first fixed contact 21, a second fixed contact 22, a third fixed contact 23, and a fourth fixed contact 24. 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 extend in the up-down direction (Z), respectively. The first fixed terminal 13 and the second fixed terminal 14 are arranged to be separated from each other in the left-right direction (X). The first fixed terminal 13 and the second fixed terminal 14 are supported by the base 11. The first fixed terminal 13 is inserted into the first insertion hole 11a. The second fixed terminal 14 is inserted into the third insertion hole 11c.

[0032] The first fixed terminal 13 includes a first contact support portion 131 and a first external terminal portion 132. The second fixed terminal 14 includes a second contact support portion 141 and a second external terminal portion 142 (see Figure 4 ). The first contact support portion 131 and the second contact support portion 141 are disposed in the housing 3. The first external terminal portion 132 and the second external terminal portion 142 protrude to the outside of the housing 3. The first external terminal portion 132 and the second external terminal portion 142 protrude downward from the base 11.

[0033] The first fixed contact 21 and the third fixed contact 23 are connected to the first contact support portion 131. The first fixed contact 21 and the third fixed contact 23 are separate from the first fixed terminal 13. The first fixed contact 21 and the third fixed contact 23 are arranged in the first fixed terminal 13 to be separated from each other in the up-down direction (Z).

[0034] The second fixed contact 22 and the fourth fixed contact 24 are arranged to be separated from the first fixed contact 21 and the third fixed contact 23 in the left-right direction (X). The second fixed contact 22 and the fourth fixed contact 24 are connected to the second contact support portion 141. The second fixed contact 22 and the fourth fixed contact 24 are separate from the second fixed terminal 14. The second fixed contact 22 and the fourth fixed contact 24 are arranged to be separated from each other in the up-down direction (Z) in the second fixed terminal 14. The first to fourth fixed contacts 21-24 are formed of a conductive material such as silver or copper.

[0035] The contact device 2 includes a first movable contact piece 15, a second movable contact piece 16, a first movable contact 31, a second movable contact 32, a third movable contact 33, and a fourth movable contact 34. The first movable contact piece 15 and the second movable contact piece 16 extend in the left-right direction (X). The length direction of the first movable contact piece 15 and the second movable contact piece 16 coincides with the left-right direction (X). 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 arranged to be separated from each other in the up-down direction (Z).

[0036] The second movable contact piece 16 is arranged above the first movable contact piece 15. The first movable contact piece 15 is arranged between the second movable contact piece 16 and the base 11 in the up-down direction (Z). The first movable contact piece 15 and the second movable contact piece 16 are arranged opposite to the first contact support portion 131 of the first fixed terminal 13 and the second contact support portion 141 of the second fixed terminal 14 in the front-back direction (Y). The first movable contact piece 15 and the second movable contact piece 16 are formed of a conductive material such as copper.

[0037] The first movable contact 31 and the second movable contact 32 are separate from the first movable contact piece 15. The first movable contact 31 and the second movable contact 32 are connected to the first movable contact piece 15. The first movable contact 31 and the second movable contact 32 are arranged separately in the left-right direction (X). The first movable contact 31 is arranged opposite to the first fixed contact 21. The second movable contact 32 is arranged opposite to the second fixed contact 22.

[0038] The third movable contact 33 and the fourth movable contact 34 are separate from the second movable contact piece 16. The third movable contact 33 and the fourth movable contact 34 are connected to the second movable contact piece 16. The third movable contact 33 and the fourth movable contact 34 are arranged separately in the left-right direction (X). The third movable contact 33 is arranged to be separated from the first movable contact 31 in the up-down direction (Z). The fourth movable contact 34 is arranged to be separated from the second movable contact 32 in the up-down direction (Z). The third movable contact 33 is arranged opposite to the third fixed contact 23. The fourth movable contact 34 is arranged opposite to the fourth fixed contact 24. The first to fourth movable contacts 31 to 34 are formed of a conductive material such as silver or copper.

[0039] The contact device 2 includes a moving part 17. The moving part 17 is made of an insulating material such as resin. The moving part 17 is connected to the first movable contact piece 15 and the second movable contact piece 16. The first movable contact piece 15 is connected to the moving part 17 between the first movable contact 31 and the second movable contact 32. The first movable contact piece 15 is connected to the moving part 17 via the first contact spring 51 described later. The second movable contact piece 16 is connected to the moving part 17 between the third movable contact 33 and the fourth movable contact 34. The second movable contact piece 16 is connected to the moving part 17 via the second contact spring 52 described later. In addition, the first movable contact piece 15 and the second movable contact piece 16 may also be directly connected to the moving part 17.

[0040] The movable member 17 is provided so as to be movable between a closed position in which the first movable contact 31 contacts the first fixed contact 21 and an open position in which the first movable contact 31 is separated from the first fixed contact 21. In addition, when the movable member 17 is in the closed position, the second movable contact 32 contacts the second fixed contact 22, the third movable contact 33 contacts the third fixed contact 23, and the fourth movable contact 34 contacts the fourth fixed contact 24. When the movable member 17 is in the open position, the second movable contact 32 separates from the second fixed contact 22, the third movable contact 33 separates from the third fixed contact 23, and the fourth movable contact 34 separates from the fourth fixed contact 24.

[0041] Figure 7 1 is a three-dimensional diagram of the moving component 17 and its surroundings. Figure 4 as well as Figure 7 As shown, the movable member 17 includes a connecting portion 25, a first supporting portion 41, a second supporting portion 42, a first connecting portion 43, and a second connecting portion 44. The connecting portion 25 extends in the front-back direction (Y). The first supporting portion 41 extends downward from the connecting portion 25. The first supporting portion 41 supports the first movable contact piece 15. The first supporting portion 41 includes a first supporting hole 411. The first movable contact piece 15 is arranged in the first supporting hole 411.

[0042] The second support portion 42 extends upward from the connection portion 25. The second support portion 42 supports the second movable contact piece 16. The second support portion 42 includes a second support hole 421. The second movable contact piece 16 is arranged in the second support hole 421. The moving member 17 includes a partition wall 45. The partition wall 45 divides the first support hole 411 and the second support hole 421. The partition wall 45 is arranged between the first movable contact piece 15 and the second movable contact piece 16.

[0043] The movable member 17 includes a first member 17a and a second member 17b. The first member 17a and the second member 17b are separate from each other. The first member 17a and the second member 17b are connected to each other by a buckle. The first member 17a includes a connecting portion 25, a portion of the first supporting portion 41, a portion of the second supporting portion 42, a first connecting portion 43, and a second connecting portion 44. The second member 17b includes a portion of the first supporting portion 41 and a portion of the second supporting portion 42. The first supporting hole 411 and the second supporting hole 421 are provided between the first member 17a and the second member 17b.

[0044] like Figure 4 As shown, the moving member 17 is arranged so that its upper end is close to the housing 12. The lower end of the moving member 17 is arranged on the base 11. The moving member 17 is supported by the base 11 in the up-down direction (Z).

[0045] The contact device 2 includes a first contact spring 51 and a second contact spring 52. The first contact spring 51 is disposed between the first movable contact piece 15 and the first support portion 41. The first contact spring 51 is disposed in the first support hole 411. In a state where the first movable contact 31 is in contact with the first fixed contact 21 and the second movable contact 32 is in contact with the second fixed contact 22, the first contact spring 51 presses the first movable contact piece 15 toward the first fixed terminal 13 and the second fixed terminal 14.

[0046] The second contact spring 52 is disposed between the second movable contact piece 16 and the second support portion 42. The second contact spring 52 is disposed in the second support hole 421. In a state where the third movable contact 33 is in contact with the third fixed contact 23 and the fourth movable contact 34 is in contact with the fourth fixed contact 24, the second contact spring 52 presses the second movable contact piece 16 toward the first fixed terminal 13 and the second fixed terminal 14.

[0047] 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 (Y1) and the separation direction (Y2). The contact direction (Y1) is the direction in which the movable contacts 31-34 contact the fixed contacts 21-24 in the front-to-back direction (Y). The separation direction (Y2) is the direction in which the movable contacts 31-34 move away from the fixed contacts 21-24 in the front-to-back direction (Y). The driving device 4 is supported on the base 11. Figure 4 As shown, the driving device 4 includes a coil 61 , a bobbin 62 , a movable iron core 63 , a fixed iron core 64 and a yoke 65 .

[0048] The coil 61 is wound around the bobbin 62. The axis of the coil 61 extends in the front-to-back direction (Y). The bobbin 62 includes a hole 621 extending in the axial direction of the coil 61. At least a portion of the movable iron core 63 is disposed in the hole 621 of the bobbin 62. The movable iron core 63 is configured to be movable in the contact direction (Y1) and the separation direction (Y2).

[0049] The movable iron core 63 is connected to the movable member 17. The first movable contact piece 15 and the movable iron core 63 are electrically insulated by the movable member 17. The second movable contact piece 16 and the movable iron core 63 are electrically insulated by the movable member 17.

[0050] like Figure 4 As shown, the connection portion 25 of the moving member 17 includes a locking groove 59. The movable iron core 63 includes a connecting portion 66. The connecting portion 66 of the movable iron core 63 is arranged in the locking groove 59 of the moving member 17. Thus, the connecting portion 66 is locked in the locking groove 59, so that the movable iron core 63 is connected to the moving member 17.

[0051] The movable iron core 63 moves integrally with the movable member 17 in the front-rear direction (Y). The movable iron core 63 moves in the contact direction (Y1) or the separation direction (Y2) according to the magnetic force generated by the coil 61. With the movement of the movable iron core 63, the movable member 17 moves to the closed position or the open position. In addition, with the movement of the movable member 17, the first movable contact piece 15 and the second movable contact piece 16 move in the contact direction (Y1) or the separation direction (Y2).

[0052] The fixed iron core 64 is disposed in the hole 621 of the bobbin 62. The fixed iron core 64 is disposed opposite to the movable iron core 63 in the front-rear direction (Y). The coil 61 generates an electromagnetic force that moves the movable iron core 63 in the contact direction (Y1) by being energized.

[0053] The yoke 65 is arranged so as to surround the coil 61. The yoke 65 is arranged on the magnetic path formed by the coil 61. Figure 4 As shown, the yoke 65 includes a first yoke 67 and a second yoke 68 .

[0054] The first yoke 67 includes a barrel portion 67a, a flange portion 67b, and an extension portion 67c. The barrel portion 67a is disposed in the hole 621 of the bobbin 62. The barrel portion 67a extends in the front-to-back direction (Y). The flange portion 67b has a rectangular shape and extends in the up-down direction (Z) and the left-right direction (X). The flange portion 67b extends outward from the end of the barrel portion 67a on the separation direction (Y2) side. The flange portion 67b is opposite to the movable member 17 in the front-to-back direction (Y). The extension portion 67c extends downward from the central lower end portion of the flange portion 67b in the left-right direction (X). The extension portion 67c is inserted into the second insertion hole 11b of the base 11.

[0055] Part of the second yoke 68 is disposed on the left and right of the coil 61. The second yoke 68 is connected to the fixed core 64.

[0056] like Figure 2 As shown, the relay 1 includes a first return spring 53 and a second return spring 54. The first return spring 53 and the second return spring 54 are arranged between the moving member 17 and the driving device 4. The first return spring 53 is connected to the first connecting portion 43 of the moving member 17. The second return spring 54 is connected to the second connecting portion 44. The first return spring 53 and the second return spring 54 apply force to the movable iron core 63 in the separation direction.

[0057] Figure 8 It is a stereoscopic view of the 1st to 3rd positioning components 5-7. The 1st to 3rd positioning components 5-7 are embedded in the base 11. In detail, the 1st to 3rd positioning components 5-7 are pressed into the press-in hole 11d fixed to the base 11. In the present embodiment, the 1st positioning component 5, the 2nd positioning component 6 and the 3rd positioning component 7 are integrated. The 1st to 3rd positioning components 5-7 are preferably formed of a material having a higher toughness than the base 11. The 1st to 3rd positioning components 5-7 in the present embodiment are made of nylon, for example.

[0058] The cross section of the first positioning component 5 perpendicular to the left-right direction (X) is roughly L-shaped. The first positioning component 5 includes a press-in portion 5a, a contact portion 5b and one or more protrusions 5c. The press-in portion 5a is pressed and fixed in the press-in hole 11d. The contact portion 5b extends in the up-down direction, and a portion is inserted into the first insertion hole 11a. The contact portion 5b presses the surface on the separation direction (Y2) side of the first fixed terminal 13. One or more protrusions 5c protrude in the direction of positioning the first fixed terminal 13 relative to the base 11. That is, one or more protrusions 5c protrude in the front-to-back direction (Y). In the present embodiment, one or more protrusions 5c protrude from the surface of the press-in portion 5a on the contact direction (Y1) side and extend in the up-down direction.

[0059] The second positioning component 6 is arranged between the first positioning component 5 and the third positioning component 7. The first positioning component 5 and the third positioning component 7 are connected by the second positioning component 6. The cross section of the second positioning component 6 perpendicular to the left-right direction (X) is roughly rectangular. The second positioning component 6 includes a press-in portion 6a and one or more protrusions 6b. The press-in portion 6a is pressed and fixed in the press-in hole 11d. One or more protrusions 6b protrude in the direction for positioning the extension portion 67c relative to the base 11. That is, one or more protrusions 6b protrude in the front-to-back direction (Y). In the present embodiment, one or more protrusions 6b protrude from the surface of the press-in portion 6a on the side facing the contact direction (Y1) and extend in the up-down direction.

[0060] The cross section of the third positioning component 7 perpendicular to the left-right direction (X) is roughly L-shaped. The third positioning component 7 includes a press-in portion 7a, a contact portion 7b and one or more protrusions 7c. The press-in portion 7a is pressed and fixed in the press-in hole 11d. The contact portion 7b extends in the up-down direction, and a portion is inserted into the third insertion hole 11c. The contact portion 7b presses the surface on the separation direction (Y2) side of the second fixed terminal 14. One or more protrusions 7c protrude in the direction of positioning the second fixed terminal 14 relative to the base 11. That is, one or more protrusions 7c protrude in the front-to-back direction (Y). In the present embodiment, one or more protrusions 7c protrude from the surface of the press-in portion 7a on the contact direction (Y1) side and extend in the up-down direction.

[0061] Here, if Figures 4 to 6 As shown, the base 11 includes a first positioning surface 71, a second positioning surface 72, and a third positioning surface 73. The first to third positioning surfaces 71-73 are flat surfaces extending in the up-down direction (X) and the left-right direction (Y).

[0062] The first positioning surface 71 positions the first fixed terminal 13 relative to the base 11 in the front-to-back direction (Y). Figure 5 As shown, the first positioning surface 71 faces the contact direction (Y1) side and contacts the surface of the first fixed terminal 13 on the separation direction (Y2) side. The first positioning member 5 presses the first fixed terminal 13 against the first positioning surface 71 to position the first fixed terminal 13 relative to the base 11. The first positioning member 5 presses the first fixed terminal 13 in the separation direction (Y2). As a result, the first fixed terminal 13 is positioned relative to the base 11.

[0063] The second positioning surface 72 positions the driving device 4 relative to the base 11 in the front-rear direction (Y). Figure 4 As shown, the second positioning surface 72 faces the separation direction (Y2) side and contacts the surface of the extension portion 67c of the first yoke 67 on the contact direction (Y1) side. The second positioning member 6 presses the extension portion 67c against the second positioning surface 72 to position the extension portion 67c relative to the base 11. The second positioning member 6 presses the extension portion 67c in the contact direction (Y1). The drive device 4 is positioned relative to the base 11 via the extension portion 67c.

[0064] The third positioning surface 73 positions the second fixed terminal 14 relative to the base 11 in the front-to-back direction (Y). Figure 6 As shown, the third positioning surface 73 faces the contact direction (Y1) side and contacts the surface of the second fixed terminal 14 on the separation direction (Y2) side. The third positioning member 7 presses the second fixed terminal 14 against the third positioning surface 73 to position the second fixed terminal 14 relative to the base 11. Thus, the second fixed terminal 14 is positioned relative to the base 11.

[0065] Next, the operation of the relay 1 is described. When the coil 61 is not energized, the drive device 4 is not excited. In this case, the moving member 17 and the movable iron core 63 are pressed in the separation direction by the elastic force of the return springs 53 and 54, and the moving member 17 is located at Figure 2 In this state, the first movable contact piece 15 and the second movable contact piece 16 are also pressed in the separation direction via the movable member 17. Therefore, when the movable member 17 is in the open position, the first movable contact 31 and the second movable contact 32 are separated from the first fixed contact 21 and the second fixed contact 22. Similarly, when the movable member 17 is in the open position, the third movable contact 33 and the fourth movable contact 34 are separated from the third fixed contact 23 and the fourth fixed contact 24.

[0066] If the coil 61 is energized, the drive device 4 is excited. In this case, the movable iron core 63 overcomes the elastic force of the return springs 53 and 54 and moves in the contact direction (Y1) by the electromagnetic force of the coil 61. As a result, the movable member 17, the first movable contact piece 15, and the second movable contact piece 16 all move in the contact direction (Y1). Therefore, Figure 4 As shown in FIG. 1 , the movable member 17 moves to the closed position. As a result, when the movable member 17 is in the closed position, the first movable contact 31 and the second movable contact 32 are in contact with the first fixed contact 21 and the second fixed contact 22, respectively. Similarly, when the movable member 17 is in the closed position, the third movable contact 33 and the fourth movable contact 34 are in contact with the third fixed contact 23 and the fourth fixed contact 24, respectively. Thus, the first movable contact piece 15 and the second movable contact piece 16 are electrically connected in parallel with respect to the first fixed terminal 13 and the second fixed terminal 14.

[0067] When the current flowing to the coil 61 stops and the coil 61 is demagnetized, the movable iron core 63 is pressed in the separation direction by the elastic force of the return springs 53 and 54. As a result, the movable member 17, the first movable contact piece 15 and the second movable contact piece 16 move together in the separation direction (Y2). Figure 3 As shown in FIG. 1 , the movable member 17 moves to the open position. As a result, when the movable member 17 is in the open position, the first movable contact 31 and the second movable contact 32 are separated from the first fixed contact 21 and the second fixed contact 22. Similarly, when the movable member 17 is in the open position, the third movable contact 33 and the fourth movable contact 34 are separated from the third fixed contact 23 and the fourth fixed contact 24.

[0068] In the relay 1 of the present embodiment described above, the first to third positioning members 5-7 embedded in the base 11 can position the first fixed terminal 13, the second fixed terminal 14, and the drive device 4 relative to the base 11. As a result, the positioning accuracy of the first fixed terminal 13, the second fixed terminal 14, and the drive device 4 can be improved. In addition, when the base 11 is formed of a thermosetting resin, for example, riveting is not required, so that cracks in the base 11 or deformation of the first fixed terminal 13 and the like due to riveting can be prevented. In addition, the base 11 is not limited to thermosetting resins, and can also be made of other types of resins.

[0069] Although one embodiment has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the invention.

[0070] In the above-mentioned embodiment, the driving device 4 moves the first movable contact piece 15 and the second movable contact piece 16 in the separation direction by pushing the moving member 17 from the driving device 4 side to the contact device 2 side. In addition, the driving device 4 moves the first movable contact piece 15 and the second movable contact piece 16 in the contact direction by pulling the moving member 17 from the contact device 2 side to the driving device 4 side. However, the movement direction of the moving member 17 for connecting and disconnecting the contact may be opposite to that in the above-mentioned embodiment. That is, the driving device 4 may move the first movable contact piece 15 and the second movable contact piece 16 in the contact direction by pushing the moving member 17 from the driving device 4 side to the contact device 2 side. The driving device 4 may move the first movable contact piece 15 and the second movable contact piece 16 in the separation direction by pulling the moving member 17 from the contact device 2 side to the driving device 4 side. That is, the contact direction and the separation direction may be opposite to those in the above-mentioned embodiment.

[0071] The shapes or configurations 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 also be changed. For example, the first external terminal portion 132 and the second external terminal portion 142 may protrude from the base 11 in a direction different from that in the above-described embodiment. The first movable contact piece 15 and the second movable contact piece 16 may also be integral. That is, the first to fourth movable contacts 31 to 34 may also be connected to an integral movable contact piece. Alternatively, the second movable contact piece 16, the third and fourth movable contacts 33, 34, and the third and fourth fixed contacts 23, 24 may also be omitted. In addition, the present invention may also be applied to hinge-type relays.

[0072] The shape or arrangement of the coil 61, bobbin 62, movable iron core 63, fixed iron core 64 or yoke 65 may be changed. The shape or arrangement of the first to fourth fixed contacts 21 to 24 may be changed. The shape or arrangement of the first to fourth movable contacts 31 to 34 may be changed.

[0073] The first fixed contact 21 and / or the third fixed contact 23 may also be integrated with the first fixed terminal 13. The first fixed contact 21 and / or the third fixed contact 23 may also be a part of the first fixed terminal 13, and be in the same plane as other parts of the first fixed terminal 13. The second fixed contact 22 and / or the fourth fixed contact 24 may also be integrated with the second fixed terminal 14. The second fixed contact 22 and / or the fourth fixed contact 24 may also be a part of the second fixed terminal 14, and be in the same plane as other parts of the second fixed terminal 14.

[0074] The first movable contact 31 and / or the second movable contact 32 may also be integrated with the first movable contact piece 15. The first movable contact 31 and / or the second movable contact 32 may also be a part of the first movable contact piece 15 and be in the same plane as other parts of the first movable contact piece 15. The third movable contact 33 and / or the fourth movable contact 34 may also be integrated with the second movable contact piece 16. The third movable contact 33 and / or the fourth movable contact 34 may also be a part of the second movable contact piece 16 and be in the same plane as other parts of the second movable contact piece 16.

[0075] The moving member 17 may not be supported by the housing 3. The moving member 17 may be made of a conductive material. The moving member 17 may be made of metal. The moving member 17 may be a shaft member connecting the movable contact pieces 15 and 16 and the movable iron core 63. In this case, the movable contact pieces 15 and 16 may be supported by a bracket.

[0076] The configuration or shape of the first to third positioning members 5-7 may also be changed. Fig.10 As shown, the first positioning member 5, the second positioning member 6 and the third positioning member 7 may also be separated from each other. Fig.11 As shown, only the first positioning member 5 and the third positioning member 7 may be integrated. In addition, the third positioning member 7 may be omitted.

[0077] For example, the second positioning member 6 may position the drive device 4 relative to the base 11 by positioning other members of the drive device 4 on the second positioning surface 72. For example, the bobbin 62 may be pressed against the second positioning surface 72. The shapes and arrangements of the first to third positioning surfaces 71-73 may also be appropriately changed according to the structure of the positioning member.

[0078] The components positioned by the first to third positioning components 5-7 are not limited to the above-described embodiments. In addition, the first to third positioning components 5-7 may be configured to perform positioning in the left-right direction (X) relative to the base 11, or may perform positioning in both the left-right direction (X) and the front-back direction (Y). Alternatively, a positioning component for positioning in the left-right direction (X) may be added.

[0079] One or more protrusions 5c, 6b, and 7c may be omitted, or the arrangement and number may be changed.

Claims

1. A relay, characterized in that: have: A base including a first positioning surface and a second positioning surface; A first fixed terminal fixed relative to the base; A movable contact piece arranged opposite to the first fixed terminal; a driving device supported by the base and causing the movable contact piece to move; a first positioning member embedded in the base, pressing the first fixed terminal against the first positioning surface, and positioning the first fixed terminal relative to the base; and a second positioning member embedded in the base, pressing the drive device against the second positioning surface to position the drive device relative to the base, The direction in which the first positioning member presses the first fixed terminal is parallel to the moving direction of the movable contact piece.

2. A relay, characterized in that: have: A base including a first positioning surface and a second positioning surface; A first fixed terminal fixed relative to the base; a drive device supported by the base; a first positioning member embedded in the base, pressing the first fixed terminal against the first positioning surface, and positioning the first fixed terminal relative to the base; and a second positioning member embedded in the base, pressing the drive device against the second positioning surface to position the drive device relative to the base, The first positioning member and the second positioning member are integrated.

3. A relay, characterized in that: have: A base including a first positioning surface and a second positioning surface; A first fixed terminal fixed relative to the base; a drive device supported by the base; a first positioning member embedded in the base, pressing the first fixed terminal against the first positioning surface, and positioning the first fixed terminal relative to the base; and a second positioning member embedded in the base, pressing the drive device against the second positioning surface to position the drive device relative to the base, The direction in which the first positioning member presses the first fixed terminal is opposite to the direction in which the second positioning member presses the driving device.

4. A relay, characterized in that: have: A base including a first positioning surface and a second positioning surface; A first fixed terminal fixed relative to the base; a drive device supported by the base; a first positioning member embedded in the base, pressing the first fixed terminal against the first positioning surface, and positioning the first fixed terminal relative to the base; and a second positioning member embedded in the base, pressing the drive device against the second positioning surface to position the drive device relative to the base, The driving device includes a bobbin, a coil wound on the bobbin, and a yoke arranged around the bobbin. The second positioning member presses the yoke against the second positioning surface.

5. The relay according to claim 1 or 2, characterized in that: The first positioning member includes one or more protrusions that protrude in a direction for positioning the first fixed terminal relative to the base. The first fixed terminal is pressed against the first positioning surface by one or more protrusions of the first positioning member.

6. The relay according to claim 1 or 2, characterized in that: The second positioning member includes one or more protrusions that protrude in a direction for positioning the driving device relative to the base. The driving device is pressed against the second positioning surface by one or more protrusions of the second positioning member.

7. A relay, characterized in that: have: A base including a first positioning surface and a second positioning surface; A first fixed terminal fixed relative to the base; a drive device supported by the base; a first positioning member embedded in the base, pressing the first fixed terminal against the first positioning surface, and positioning the first fixed terminal relative to the base; and a second positioning member embedded in the base, pressing the drive device against the second positioning surface to position the drive device relative to the base; a second fixed terminal fixed relative to the base; a third positioning member embedded in the base, The base also includes a third positioning surface, The third positioning member presses the second fixed terminal against the third positioning surface to position the second fixed terminal relative to the base. The first positioning member and the third positioning member are integrated.

8. The relay according to claim 7, characterized in that: The third positioning member includes one or more protrusions that protrude in a direction for positioning the second fixed terminal relative to the base. The second fixed terminal is pressed against the third positioning surface by one or more protrusions of the third positioning member.

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