Relay

Abstract

Relays, comprehensive: a movable contact section (31) with a movable contact terminal (34), a movable touching piece (33) connected to the movable contact terminal (34), and a movable contact (35) connected to the movable touching piece (33); a fixed contact section (32) with a fixed contact terminal (36) arranged remotely from the movable contact terminal (34) in a predetermined direction, and a fixed contact (37) arranged in the opposite direction to the movable contact terminal (34) in the predetermined direction, and connected to the fixed contact section (32); and a base (11) configured to include the movable contact section (31) and the fixed contact section (32), wherein the movable contact piece (33) includes a swell section (334) which protrudes in the predetermined direction and has several spring sheets (41-44) laminated and arranged on top of each other, the base (11) has a regulator (52, 53, 59) which is opposite the threshold section (334), the fixed contact terminal (36) has a first surface (361) which is opposite the movable contact piece (33) and a second surface (362) which is located on a side opposite the first surface (361), the regulator (52, 53, 59) is located on the side of the movable contact piece (33) in relation to the second surface (362) of the fixed contact terminal (36), and when the movable contact piece (33) is deformed by an electromagnetic repulsion force during energization, a distance between the regulator (52, 53, 59) and the swell section (334) is set such that the deformation of the movable contact piece (33) is regulated by bringing the regulator (52, 53, 59) into contact with the swell section (334) before all of the several spring plates (41-44) are plastically deformed.

Description

TECHNICAL AREA

[0001] The present invention relates to a relay. STATE OF THE ART

[0002] There is a relay with a movable contact piece comprising several laminated spring laminations (see patent publication 1). The movable contact piece is connected to a movable contact terminal. A movable contact is attached to the movable contact piece, and the movable contact faces a fixed contact. The movable contact piece is also provided with a swell section. The swell section has a shape that swells in the direction where the fixed contact is located relative to the movable contact. In a base configured to support the movable contact piece, a space is provided between a section facing the swell section and the swell section itself, to allow for some movement of the swell section.

[0003] When a large current flows between the moving contact and the fixed contact, an electromagnetic repulsion force acts on the moving contact in a direction that causes it to separate from the fixed contact. However, when a large current flows into the moving contact in the relay described above, an electromagnetic repulsion force acts between the moving contact terminal and the moving contact, causing the moving contact to deform in a direction that presses the moving contact against the fixed contact. This electromagnetic repulsion force, which acts to press the moving contact against the fixed contact, exceeds the electromagnetic repulsion force that separates the moving contact from the fixed contact, thus preventing the moving contact from separating from the fixed contact.Patent Publication 2 discloses an electromagnetic relay designed to prevent permanent deformation resulting from being dropped or subjected to a fall impact. Further prior art is described in Patent Publication 3. STATUS OF TECHNICAL PATENT PUBLICATIONS Patent Publication 1: Japanese Unexamined Patent publication JP 2015 - 18 762 A Patent Publication 2: JP H06-196071A Patent Publication 3: JP 2013-30310A Brief description of the invention; problems to be solved by the invention

[0004] However, in the relay described above, there is a risk that if the current flowing through the moving contact becomes high, the deformation of the moving contact due to the electromagnetic repulsion force will become excessive. If the moving contact is severely deformed, the force pressing the moving contact against the fixed contact will deviate from the direction of the moving contact towards the fixed contact. In this case, the force pressing the moving contact against the fixed contact becomes weak, and there is a possibility that the moving contact could separate from the fixed contact.

[0005] An object of the present invention is to provide a relay capable of suppressing a separation between a movable contact and a fixed contact during the application of a large current. This object is achieved by the subject matter of independent claim 1. Preferred embodiments are the subject matter of the dependent claims. The invention is defined by the claims, aspects of which are set forth below. MEANS TO SOLVE THE PROBLEM

[0006] A relay according to one aspect of the present invention comprises a movable contact section, a fixed contact section, and a base. The movable contact section has a movable contact terminal, a movable contact point, and a movable contact. The movable contact point is arranged relative to the movable contact terminal in a predetermined direction and is connected to the movable contact terminal. The movable contact is connected to the movable contact point. The fixed contact section has a fixed contact terminal and a fixed contact. The fixed contact terminal is arranged in a predetermined direction away from the movable contact terminal. The fixed contact is arranged in a predetermined direction relative to the movable contact terminal and is connected to the fixed contact terminal.The base comprises the movable contact section and the fixed contact section. The movable contact section has several spring plates. These spring plates are laminated and arranged together. The movable contact section includes a swell section that projects in the predetermined direction. The base has a regulator located opposite the swell section. The fixed contact section has a first surface facing the movable contact section and a second surface located on a side opposite the first surface. The regulator is located on the side of the movable contact section with respect to the second surface of the fixed contact section.If the movable contact piece is deformed by an electromagnetic repulsion force during energization, a distance between the regulator and the swell section is set such that the deformation of the movable contact piece is regulated by bringing the regulator into contact with the swell section before all of the several spring plates are plastically deformed.

[0007] The base may have a recessed section opposite the threshold section and in the predetermined direction. The regulator may be contained within the recessed section.

[0008] Whether the movable contact is far from the fixed contact or the movable contact is in contact with the fixed contact, at least part of the swell section can be located within the recessed section.

[0009] When the movable contact is in contact with the fixed contact, at least part of the swell section may be located on the second surface with respect to the first surface of the fixed contact terminal.

[0010] A distance between an outer surface of the base, which is located in the predetermined direction with respect to the regulator, and the regulator may be greater than a distance between the regulator and the swell section if the movable contact is far from the fixed contact.

[0011] The base can have a first inner surface opposite the swell section in the predetermined direction. The regulator can be the first inner surface.

[0012] The regulator can be a protruding section that extends from the first inner surface of the swell section.

[0013] The base can have a second inner surface extending from the first inner surface in a direction from the first inner surface to the swell section. The regulator can be this second inner surface. IMPACT OF THE INVENTION

[0014] In the present invention, if the movable contact element is deformed by the electromagnetic repulsion force during energization, the deformation of the movable contact element is regulated by bringing the regulator into contact with the swell section before all of the multiple spring plates are plastically deformed. Therefore, if the movable contact element is deformed by the electromagnetic repulsion force during energization, the regulator controls the deformation of the movable contact element so that at least one of the multiple spring plates is not plastically deformed. This suppresses excessive deformation of the movable contact element during the application of a high current, and at least one of the multiple spring plates retains elasticity. This can prevent separation between the movable contact and the fixed contact during the application of a high current. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a perspective view of a relay according to one embodiment. Fig. Figure 2 is a top view of the relay in a reset state. Fig. Figure 3 is a top view of the relay in a set state. Fig. 4 is an enlarged view of Fig. 2. Fig. 5 is an enlarged view of Fig. 3. Fig. Figure 6 is an enlarged view of a relay according to a first modification. Fig. Figure 7 is an enlarged view of a relay according to a second modification. MODE FOR EXECUTING THE INVENTION

[0015] The following describes a relay according to one embodiment, with reference to the drawings. Fig. Figure 1 is a perspective view of a relay 1 according to the embodiment. Fig. 2 and Fig. Figure 3 shows top views of relay 1 according to the embodiment. As in Fig. As shown in Figure 1, the relay 1 comprises a base 11, an actuator 12, a movable section 13, a support component 14, a connecting section 15, and a contact section 16. For ease of understanding, the following is shown in the Fig. 2 and Fig. 3. The supporting component 14 was omitted.

[0016] In the present embodiment, in Fig. 1. A direction indicated by an x-axis is referred to as a first direction. A direction indicated by a y-axis is referred to as a second direction. Furthermore, a direction indicated by a z-axis is referred to as upward. The x-axis, y-axis, and z-axis are perpendicular to each other. For example, if a direction from drive 12 to movable section 13 and a direction parallel to this direction constitute the first direction, then a direction perpendicular to the first direction and extending from drive 12 to contact section 16 and a direction parallel to this direction constitute the second direction. Furthermore, a direction perpendicular to both the first and second directions and extending from movable section 13 to support component 14, and a direction parallel to this direction, constitute upward.

[0017] The base 11 includes the drive 12, the movable section 13, the connecting section 15 and the contact section 16. The base is covered with a housing not shown.

[0018] As in the Fig. 2 and Fig. As shown in Figure 3, the base 11 has a first container 17 and a second container 18. The first container 17 and the second container 18 are arranged side by side in the second direction (y). The first container 17 and the second container 18 are divided by a divider 113. The first container 17 contains the contact section 16. The second container contains the drive 12, the movable section 13, and the support component 14.

[0019] The actuator 12 generates a driving force to open and close the contact section 16. More precisely, the actuator 12 generates an electromagnetic force to rotate the movable section 13, thereby opening and closing the contact section 16. As in Fig. As shown in Figure 2, the drive 12 comprises a coil 21, a coil former 22, a first yoke 23, and a second yoke 24. The coil 21 is wound around the coil former 22. A central axis of the coil 21 extends in the second direction (y). An iron core, not shown, is inserted into the coil 22. The first yoke 23 is connected to one end of the iron core, and the second yoke 24 is connected to the other end of the iron core.

[0020] The movable section 13 is rotatably supported with respect to the base 11. The movable section 13 is driven by the electromagnetic force of the drive 12. The movable section 13 is arranged between the first yoke 23 and the second yoke 24. The movable section 13 comprises a first armature 25, a second armature 26, a permanent magnet 27, and a movable body 28. The first armature 25, the second armature 26, and the permanent magnet are attached to the movable body 28. The base rotatably supports the movable body 28 about a rotating shaft 281. The movable body 28 has a connecting piece 282. The connecting piece 282 projects toward the connecting section 15.

[0021] The first anchor 25 has a first end section 251 and a second end section 252. The second anchor 26 has a third end section 261 and a fourth end section 262. The first end section 251 and the third end section 261 project from the movable body 28 in the same direction. The second end section 252 and the fourth end section 262 project from the movable body in a direction opposite to that of the first end section and the third end section 261.

[0022] The support component 14, shown in Fig. 1. Rotatably supports the movable section 13. The support component 14 is arranged above the movable section 13.

[0023] The connecting section 15 transmits the operation of the movable section 14 to the contact section 16. The connecting section extends in the second direction (y), perpendicular to the first direction (x). The connecting section 15 is arranged over the first container 17 and the second container 18. The connecting section 15 connects the movable body 28 and a movable contact piece 33, which will be described later.

[0024] The connecting section 15 has a recessed section 153. A guide end of the movable contact piece 33 is arranged in the recessed section 153. The connecting section 15 has a hole 154. A guide end of the connecting piece 282 of the movable section 13 is inserted into the hole 154 of the connecting section 15.

[0025] The contact section 16 has a movable contact section 31 and a fixed contact section 32. The movable contact section 31 has the movable touch piece 33, a movable contact terminal 34, and a movable contact 35. The movable touch piece 33 and the movable contact terminal 34 extend in the first direction (x). The movable touch piece 33 is arranged opposite the movable contact terminal 34. The movable touch piece 33 is arranged in the second direction (y) with respect to the movable contact terminal 34. The movable touch piece 33 is connected to the movable contact terminal 34. The movable contact 35 is connected to the movable touch piece 33.

[0026] The fixed contact section 32 has a fixed contact terminal 36 and a fixed contact 37. The fixed contact terminal 36 is located far from the movable contact terminal 34 in the second direction (y). The fixed contact terminal 36 extends in the first direction (x). The fixed contact 37 is connected to the fixed contact terminal 36. The fixed contact 37 is located opposite the movable contact 35. The fixed contact is located in the second direction (y) with respect to the movable contact 35. That is, the second direction (y) corresponds to the direction in which the fixed contact 37 is located with respect to the movable contact 35.

[0027] Fig. Figure 4 is an enlarged view of relay 1 in Fig. 2. Fig. Figure 5 is an enlarged view of the relay in Fig. 3. As in the Fig. 4 and Fig. As shown in Figure 5, the movable contact piece 33 has several spring plates 41 to 44. These spring plates 41 to 44 are laminated together in the second direction (Y). The spring plates 41 to 44 are made of a conductive metal material, such as a copper alloy. More precisely, the movable contact piece 33 has the first spring plate 41 and the second spring plate 42. The first spring plate 41 is located closest to the fixed contact terminal 36 of the spring plates 41 to 44. The second spring plate 42 is located closest to the movable contact terminal 34 of the spring plates 41 to 44. The second spring plate is made of a material different from that of the other spring plates 41, 43, 44. The second spring plate 42 has a higher elasticity than the other spring plates 41, 43, 44.

[0028] The multiple spring plates 41 to 44 include the third spring plate 43 and the fourth spring plate 44. The third spring plate 43 and the fourth spring plate 44 are arranged between the first spring plate 41 and the second spring plate 42. The multiple spring plates 41 to 44 are fully connected to the movable contact terminal 34. While in this embodiment the movable contact element 33 consists of the four spring plates 41 to 44, the number of spring plates in the movable contact element 33 is not limited to four, but can be less than four or more than four.

[0029] The movable contact piece 33 has a base end section 331 and a guide end section 332. The base end section 331 is connected to the movable contact terminal 34. The guide end section 332 is located on the side opposite the base end section 331 and is a free end. The guide end section 332 of the movable contact piece 33 is arranged within the recessed section 153 of the connecting section 15. A guide end section 421 of the second spring plate 42 is bent towards the side of the movable contact terminal 34.

[0030] The movable contact piece 33 has a first flat section 333, a swelled section 334, and a second flat section 335. That is, each of the several spring plates 41 to 44 described above has a shape corresponding to the first flat section 333, the swelled section 334, and the second flat section 335. The first flat section 333, the swelled section 334, and the second flat section 335 are disclosed side by side in a longitudinal direction of the movable contact piece 33. The longitudinal direction of the movable contact piece 33 is essentially parallel to the first direction (x) described above.

[0031] The swell section 334 projects in the second direction (y). That is, the swell section 334 curves in a projecting shape in one direction away from the movable contact terminal 34. The swell section 334 is arranged between the first flat section 333 and the second flat section 335. The first flat section 333 contains the base end section 331 described above. The first flat section 333 is connected to the movable contact terminal 34. The second flat section 335 contains the guide end section 332 described above. The second flat section 335 is connected to the movable contact 35.

[0032] Next, the operation of relay 1 is described. In a reset state, which is in the Fig. 2 and Fig. As shown in Figure 4, the end section 251 of the first anchor 25 is in contact with the first yoke 23, while the second end section 252 is far from the second yoke 24. Furthermore, the fourth end section 262 of the second anchor 26 is in contact with the second yoke 24, while the third end section 261 is far from the first yoke 23.

[0033] The movable contact 35 is far from the fixed contact 37.

[0034] When coil 21 is energized in a predetermined direction, an electromagnetic force is generated to rotate the movable section 13 in a forward direction (clockwise). Fig. 2) is generated. This rotates the movable section 13 in the forward direction. As the movable section 13 rotates in the forward direction, the connecting piece 282 presses the connecting section 15, thereby moving the connecting section 15 in the second direction (y). This moves the guide end of the movable contact piece 33 in the second direction (y), and thus the movable contact 35 moves to approach the fixed contact 37. As a result, the movable contact 35 comes into contact with the fixed contact 37. This switches the relay 1 out of the reset state, which is in Fig. 2 is shown, in a set state that is in Fig. 3 is shown.

[0035] As in Fig. As shown in Figure 5, when relay 1 is in the set state, the guide end section 421 of the second spring plate 42 comes into contact with a side surface of the recessed section 153 of the connecting section 15. This can result in a stable contact pressure between the movable contact 35 and the fixed contact 37 when relay 1 is in the set state.

[0036] As in Fig. As shown in Figure 3, in the set state, the first end section 251 of the first armature 35 is far from the first yoke 23, and the second end section 252 is in contact with the second yoke 24. Meanwhile, the fourth end section 262 of the second armature 26 is far from the second yoke 24, and the third end section 261 is in contact with the first yoke 23. Even if the current to the coil 21 stops in this state, a magnetic force from the permanent magnet 27 can maintain the set state.

[0037] Next, when coil 21 is energized in a direction opposite to the predetermined direction described above, an electromagnetic force is generated to rotate the movable section 13 in a direction opposite to the forward direction (counterclockwise). Fig. 3) is generated. This rotates the movable section 13 in the opposite direction. When the movable section 13 rotates in the opposite direction, the connecting piece 282 presses the connecting section 15, thereby causing the connecting section 15 to rotate in a direction opposite to the second direction (y) (a right-hand direction in Fig. 3) to move. This moves the guide end of the movable contact piece 33 in the direction opposite to the second direction (y), and thus the movable contact 35 moves away from the fixed contact 37. As a result, the movable contact 35 separates from the fixed contact 37. This causes the relay 1 to return from the set state, as shown in Fig. 3, to the reset state, shown in Fig. 2, back. Even if the current to coil 21 stops in this state, the magnetic force of the permanent magnet 27 maintains the reset state.

[0038] The relay 1 according to the embodiment has a structure that prevents excessive deformation of the movable contact piece 33 during the application of a large current. The structure will be described below.

[0039] As in the Fig. 2 and Fig. As shown in Figure 3, the container 17 in the base 11, which includes the movable contact piece 33, has a recessed section 51. The recessed section 51 is opposite the swell section 334 and has a recessed shape in the second direction (y).

[0040] As in the Fig. 4 and Fig. As shown in Figure 5, the recessed section 51 has a first inner surface 52, a second inner surface 53, and a third inner surface 54. The first inner surface 52 is opposite the swell section 334. The first inner surface 52 is oriented in the second direction (y) with respect to the swell section 334. The first inner surface 52 extends in the first direction (x).

[0041] The second inner surface 53 extends from the first inner surface 52 in the direction opposite to the second direction (y). That is, the second inner surface 53 extends from the first inner surface 52 in a direction parallel to a direction from the first inner surface 52 to the threshold section 334. The second inner surface 53 curves in a direction opposite to the first direction (x). The second inner surface 53 is opposite the first flat section 333. The second inner surface 53 is oriented in the second direction (y) with respect to the first flat section 333. The second inner surface 53 is opposite the threshold section 334. The second inner surface 53 is oriented in the direction opposite to the first direction (x) with respect to the threshold section 334.

[0042] The third inner surface 54 extends from the first inner surface 52 in the direction opposite to the second direction (y). That is, the third inner surface 54 extends from the first inner surface 52 in the direction parallel to the direction from the first inner surface 52 to the swell section 334. The third inner surface 54 is curved in the first direction (x). The third inner surface 54 is opposite the second flat section 335. The third inner surface 54 is arranged in the second direction with respect to the second flat section 335. The third inner surface is opposite the swell section 334. The third inner surface 54 is arranged in the first direction (x) with respect to the swell section 334.

[0043] The first container 17 has a movable connector 55. The movable connector 55 has a shape that is recessed in the direction opposite to the first direction (x). A base end section 341 of the movable contact terminal 34 and the base end section 331 of the movable contact piece 33 are arranged within the movable connector 55. The movable connector 55 supports the base end section 341 of the movable contact terminal 34 and the base end section 331 of the movable contact piece 33. The movable connector 55 is connected to the second inner surface 53.

[0044] The first container 17 has a fixed terminal support 56 and a projecting section 57. The fixed terminal support 56 has a recessed section in the direction opposite to the first direction (x). A base end section 360 of the fixed contact terminal 36 is arranged within the fixed terminal support 56. The fixed terminal support 56 supports the base end section 360 of the fixed contact terminal 36. The fixed terminal support 56 is connected to the projecting section 57. The projecting section 57 is located between the fixed terminal support 56 and the recessed section 51. The projecting section 57 is opposite the second flat section 335. The projecting section 57 is arranged in the second direction (y) with respect to the second flat section 335. The projecting section is connected to the third inner surface 54.

[0045] In this embodiment, the first inner surface 52 described above is arranged near the swell section 334 and serves as a regulator to control the degree of deformation of the movable contact piece 33. More precisely, during normal use, the regulator is not in contact with the swell section 334. When the movable contact piece 33 is deformed by an electromagnetic repulsion force during the application of a large current, a distance between the first inner surface 52 and the swell section 334 is adjusted such that the deformation of the movable contact piece 33 is regulated by bringing the regulator into contact with the swell section 334 before all of the multiple spring plates 41 to 44 are plastically deformed.

[0046] The fixed contact terminal 36 described above has a first surface 361, which faces the movable contact piece 33, and a second surface 362, which is located on the side opposite the first surface 361. The first inner surface 52 is located on the side of the movable contact piece 33 with respect to the second surface 362 of the fixed contact terminal 36.

[0047] As in the Fig. 4 and Fig. As shown in Figure 5, both when the movable contact 35 is far from the fixed contact 37 and when the movable contact 35 is in contact with the fixed contact 37, at least part of the swell section 334 is arranged within the recessed section 51. When the movable contact 35 is in contact with the fixed contact 37, at least part of the swell section 334 is located on the side of the second surface 362 with respect to the first surface 361 of the fixed contact terminal 36.

[0048] As in Fig. As shown in Figure 4, the distance between an outer surface 58 of the base 11, which is located in the second direction (y) with respect to the first inner surface 52, and the first inner surface 52 is greater than the distance between the first inner surface 52 and the swell section 334 when the movable contact 35 is far from the fixed contact 37. As shown in Fig. As shown in Figure 5, the distance between the outer surface 58 of the base 11, which is located in the second direction (y) with respect to the first inner surface 52, and the first inner surface 52 is greater than the distance between the first inner surface 52 and the swell section 334 when the movable contact 35 is in contact with the fixed contact 37.

[0049] In relay 1 according to the embodiment described above, the first inner surface 52 is arranged as the regulator near the movable contact piece 33. When the movable contact piece 33 is deformed by the electromagnetic repulsion force during energization, the first inner surface 52 comes into contact with the swell section 334 to regulate the deformation of the movable contact piece 33. This suppresses excessive deformation of the movable contact piece 33. This prevents a force acting on the movable contact 35 by the electromagnetic repulsion force from deviating from the direction from the movable contact 35 to the fixed contact 37.As a result, the movable contact 35 can be efficiently pressed against the fixed contact 37 by the electromagnetic repulsion force, and even when a large current flows, separation between the movable contact 35 and the fixed contact 37 can be suppressed.

[0050] While, as described above, one embodiment of the present invention has been described, the present invention is not limited to the above embodiment, but various modifications that do not deviate from the core of the invention can be made.

[0051] While in the embodiment described above the regulator is located in the first inner surface 52, the form of the regulator is not limited to this, and modifications can be made. For example, Fig. 6. An enlarged view of the relay according to a first modification. As in Fig. As shown in Figure 6, the regulator can be a projecting section 59 extending from the first inner surface 52 towards the swell section 334. This means that when the movable contact piece 33 is deformed by the electromagnetic repulsion force during energization, a distance between the projecting section 59 and the swell section 334 can be adjusted such that the deformation of the movable contact piece 33 is regulated by bringing the projecting section 59 into contact with the swell section 334 before all of the multiple spring plates 41 to 44 are plastically deformed.

[0052] Fig. Figure 7 is an enlarged view of the relay according to a second modification. As in Fig.As shown in Figure 7, the regulator can be the second inner surface 53. Compared to the second inner surface 53 in the embodiment described above and the first modification, the second inner surface 53 of the second modification is located closer to the swell section 334. That is, if the movable contact piece 33 is deformed by the electromagnetic repulsion force during energization, a distance between the second inner surface 53 and the swell section 334 can be adjusted such that the deformation of the movable contact piece 33 is regulated by bringing the second inner surface 53 into contact with the swell section 334 before all of the multiple spring plates 41 to 44 are plastically deformed. INDUSTRIAL APPLICABILITY

[0053] According to the present invention, a relay can be provided which is capable of suppressing a separation between a movable contact and a fixed contact during the injection of a large current. DESCRIPTION OF SYMBOLS 34 movable contact connection 33 movable contact piece 35 movable contact 31 movable contact section 36 fixed contact connection 37 fixed contact 32 fixed contact section 11 Basic 41 to 44 spring steel 334 Threshold section 52 first inner surface (regulator) 53 second inner surface (regulator) 59 protruding section (regulator) 361 first surface 362 second surface 51 in-depth section

Claims

[1] Relays, comprising: a movable contact section (31) with a movable contact terminal (34), a movable touching piece (33) connected to the movable contact terminal (34), and a movable contact (35) connected to the movable touching piece (33); a fixed contact section (32) with a fixed contact terminal (36) arranged remotely from the movable contact terminal (34) in a predetermined direction, and a fixed contact (37) arranged in the opposite direction to the movable contact terminal (34) in the predetermined direction, and connected to the fixed contact section (32); and a base (11) configured to include the movable contact section (31) and the fixed contact section (32), wherein the movable contact piece (33) includes a swell section (334) which protrudes in the predetermined direction and has several spring sheets (41-44) laminated and arranged on top of each other, the base (11) has a regulator (52, 53, 59) which is opposite the threshold section (334), the fixed contact terminal (36) has a first surface (361) which is opposite the movable contact piece (33) and a second surface (362) which is located on a side opposite the first surface (361), the regulator (52, 53, 59) is located on the side of the movable contact piece (33) in relation to the second surface (362) of the fixed contact terminal (36), and when the movable contact piece (33) is deformed by an electromagnetic repulsion force during energization, a distance between the regulator (52, 53, 59) and the swell section (334) is set such that the deformation of the movable contact piece (33) is regulated by bringing the regulator (52, 53, 59) into contact with the swell section (334) before all of the several spring plates (41-44) are plastically deformed. [2] Relay according to claim 1, wherein the base (11) has a recessed section (51) opposite the swell section (334) and is recessed in the predetermined direction, and the regulator (52, 53, 59) is contained in the in-depth section (51). [3] Relay according to claim 2, wherein both when the movable contact (35) is far from the fixed contact (37) and when the movable contact (35) is in contact with the fixed contact (37), at least a part of the swell section (334) is arranged within the recessed section (51). [4] Relay according to any one of claims 1 to 3, wherein, when the movable contact (35) is in contact with the fixed contact (37), at least a part of the swell section (334) is located on the side of the second surface (362) in relation to the first surface (361) of the fixed contact terminal (36). [5] Relay according to any one of claims 1 to 4, wherein a distance between an outer surface of the base (11) located in the predetermined direction with respect to the regulator (52, 53, 59) and the regulator (52, 53, 59) is greater than a distance between the regulator (52, 53, 59) and the threshold section (334) when the movable contact (35) is far from the fixed contact (37). [6] Relay according to any one of claims 1 to 5, wherein the base (11) has a first inner surface (52) which is opposite the swell section (334) in the predetermined direction, and the regulator is the first inner surface (52). [7] Relay according to any one of claims 1 to 5, wherein the base (11) has a first inner surface (52) which is opposite the swell section (334) in the predetermined direction, and the regulator is a protruding section (59) that extends from the first inner surface (52) to the swell section. [8] Relay according to any one of claims 1 to 5, wherein the base (11) has a first inner surface (52) opposite the swell section (334) in the predetermined direction, and a second inner surface (53) extending from the first inner surface (52) in a direction from the first inner surface (52) to the swell section (334), and the regulator is the second inner surface (53).

Images