WO2021124755A1 - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
WO2021124755A1
WO2021124755A1 PCT/JP2020/042581 JP2020042581W WO2021124755A1 WO 2021124755 A1 WO2021124755 A1 WO 2021124755A1 JP 2020042581 W JP2020042581 W JP 2020042581W WO 2021124755 A1 WO2021124755 A1 WO 2021124755A1
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Prior art keywords
contact
fixed
movable
case
movable contact
Prior art date
Application number
PCT/JP2020/042581
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French (fr)
Japanese (ja)
Inventor
航平 大塚
亮太 箕輪
岩坂　博之
裕之 針持
小川　真一
直樹 川口
Original Assignee
オムロン株式会社
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Publication of WO2021124755A1 publication Critical patent/WO2021124755A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements

Definitions

  • the present invention relates to an electromagnetic relay.
  • the electromagnetic relay described in Patent Document 1 includes a fixed terminal including a fixed contact, a movable contact piece including the movable contact, a drive shaft, and a drive device.
  • the drive device moves the movable contact piece in the direction in which the movable contact contacts the fixed contact and in the direction in which the movable contact is released via the drive shaft.
  • the conventional electromagnetic relay has a problem that when a movable contact comes into contact with a fixed contact, a collision sound is generated due to a collision between the movable contact and the fixed contact.
  • An object of the present invention is to suppress a collision sound when a movable contact contacts a fixed contact.
  • the electromagnetic relay includes a drive shaft, a fixed terminal, a movable contact piece, a drive device, and a damping member.
  • Fixed terminals include fixed contacts.
  • the fixed terminal has a plate shape and extends in a direction intersecting the drive shaft.
  • the movable contact piece is connected to the drive shaft.
  • the movable contact piece includes a movable contact arranged so as to face the fixed contact.
  • the drive device moves the movable contact piece in the direction in which the movable contact contacts the fixed contact and in the direction in which the movable contact is released via the drive shaft.
  • the damping member is provided in contact with the fixed contact, and damps the vibration when the movable contact contacts the fixed contact.
  • the fixed terminal may include a first surface on which fixed contacts are arranged and a second surface opposite to the first surface.
  • the damping member may be provided on at least one of the first surface and the second surface. In this case, the damping member can effectively dampen the vibration when the movable contact contacts the fixed contact.
  • the electromagnetic relay may further include a contact case.
  • the contact case may include a hole penetrating in the moving direction of the movable contact piece.
  • the fixed contact and the movable contact piece may be housed in a contact case.
  • the second surface of the fixed terminal may be arranged in contact with the contact case at a position overlapping the hole when viewed from the moving direction of the movable contact piece.
  • the damping member may be filled in the hole. In this case, it is possible to attenuate the vibration when the movable contact contacts the fixed contact with a simple configuration.
  • the damping member may be made of resin.
  • the damping member may be a compression spring arranged so as to be expandable and contractible in the moving direction of the movable contact piece on the second surface side.
  • the damping member may be arranged at a position overlapping the fixed contact when viewed from the moving direction of the movable contact piece. In this case, since the damping member is arranged at a position close to the source of vibration, it is possible to more effectively suppress the collision sound when the movable contact contacts the fixed contact.
  • the electromagnetic relay may further include a resin contact case in which a fixed contact and a movable contact piece are housed.
  • the damping member may be integrated with the contact case. At least one of the first surface and the second surface of the fixed terminal may be arranged in contact with the contact case. In this case, since the contact case also serves as a damping member, the number of parts can be reduced.
  • the first and second surfaces of the fixed terminal may be arranged in contact with the contact case. Even in this case, the collision noise when the movable contact contacts the fixed contact can be suppressed more effectively.
  • the contact case may include a contact portion that is formed in a wavy shape and contacts the second surface of the fixed terminal. In this case, the collision sound when the movable contact contacts the fixed contact can be more effectively suppressed by the contact portion.
  • the electromagnetic relay 100 When referring to the drawings, the upper side in FIG. 1 will be referred to as “upper”, the lower side will be referred to as “lower”, the left side will be referred to as “left”, and the right side will be referred to as “right” in order to make the explanation easier to understand. Further, the direction orthogonal to the paper surface of FIG. 1 will be described as the front-back direction. These directions are defined for convenience of explanation, and do not limit the arrangement direction of the electromagnetic relay 100.
  • FIG. 1 is a schematic cross-sectional view of the electromagnetic relay 100.
  • the electromagnetic relay 100 includes a contact case 2, a contact device 3, a drive device 4, and damping members 5a and 5b.
  • the contact case 2 has a substantially quadrangular box shape and is made of an insulating material. In this embodiment, the contact case 2 is made of resin.
  • the contact device 3 is housed in the contact case 2. Specifically, the contact device 3 accommodates fixed contacts 6c and 7c and a movable contact piece 10 which will be described later.
  • the contact case 2 includes an upper surface portion 2a, a side wall portion 2b, and terminal support portions 2c and 2d.
  • the upper surface portion 2a has a substantially rectangular shape in top view, and extends in the front-rear direction and the left-right direction.
  • the side wall portion 2b extends in the vertical direction from the outer end of the upper surface portion 2a so as to surround the side of the contact device 3.
  • the terminal support portions 2c and 2d are formed by through holes penetrating the side wall portions 2b in the left-right direction.
  • the contact device 3 includes fixed terminals 6 and 7, a movable contact piece 10, and a movable mechanism 11.
  • the fixed terminals 6 and 7 are plate-shaped terminals and are made of a conductive material.
  • the fixed terminals 6 and 7 extend in a direction intersecting the drive shaft 21 described later. Specifically, the fixed terminals 6 and 7 extend in the left-right direction and penetrate the contact case 2 in the left-right direction.
  • the fixed terminal 6 and the fixed terminal 7 are arranged so as to be spaced apart from each other in the left-right direction.
  • the fixed terminal 6 is supported by the terminal support portion 2c.
  • the fixed terminal 7 is supported by the terminal support portion 2d.
  • the fixed terminal 6 includes a first surface 6a, a second surface 6b, a fixed contact 6c, and an external connection portion 6d.
  • the first surface 6a is a surface facing downward.
  • the first surface 6a is in contact with the terminal support portion 2c.
  • the second surface 6b is a surface opposite to the first surface 6a and faces upward.
  • the fixed contact 6c is arranged on the first surface 6a.
  • the fixed contact 6c is made of a conductive material.
  • the fixed contact 6c is separate from the fixed terminal 6.
  • the fixed contact 6c may be integrated with the fixed terminal 6.
  • the external connection portion 6d projects to the left from the contact case 2 and is exposed to the outside.
  • the fixed terminal 7 includes a first surface 7a, a second surface 7b, a fixed contact 7c, and an external connection portion 7d.
  • the first surface 7a is a surface facing downward.
  • the first surface 7a is in contact with the terminal support portion 2d.
  • the second surface 7b is a surface opposite to the first surface 7a and faces upward.
  • the fixed contact 7c is arranged on the first surface 7a.
  • the fixed contact 7c is made of a conductive material.
  • the fixed contact 7c is separate from the fixed terminal 7.
  • the fixed contact 7c may be integrated with the fixed terminal 7.
  • the external connection portion 7d projects to the right from the contact case 2 and is exposed to the outside.
  • the movable contact piece 10 is a plate-shaped member that is long in one direction and extends in the left-right direction in the contact case 2.
  • the longitudinal direction of the movable contact piece 10 coincides with the left-right direction.
  • the lateral direction of the movable contact piece 10 coincides with the front-rear direction.
  • the movable contact piece 10 is made of a conductive material.
  • the movable contact piece 10 includes movable contacts 10a and 10b.
  • the movable contacts 10a and 10b are arranged at positions where the movable contacts 10a face the fixed contacts 6c and can come into contact with the fixed contacts 6c.
  • the movable contact 10b is arranged at a distance from the movable contact 10a in the left-right direction.
  • the movable contact 10b is arranged at a position facing the fixed contact 7c and can come into contact with the fixed contact 7c.
  • the movable contacts 10a and 10b are made of a conductive material.
  • the movable contacts 10a and 10b are separate from the movable contact piece 10.
  • the movable contacts 10a and 10b may be integrated with the movable contact piece 10.
  • the movable contact piece 10 is movably provided in the contact direction Z1 in which the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c and in the opening / separating direction Z2 in which the movable contacts 10a and 10b are separated.
  • the contact direction Z1 is upward in FIG.
  • the separation direction Z2 is downward in FIG. Therefore, the contact direction Z1 and the separation direction Z2 are parallel to the vertical direction.
  • the contact direction Z1 and the release direction Z2 are examples of the moving directions of the movable contact piece 10.
  • the movable mechanism 11 supports the movable contact piece 10.
  • the movable mechanism 11 is movably provided at a closed position where the fixed contacts 6c and 7c and the movable contacts 10a and 10b are in contact with each other and an open position where the fixed contacts 6c and 7c and the movable contacts 10a and 10b are separated from each other. That is, the movable mechanism 11 is provided so as to be movable in the contact direction Z1 and the opening direction Z2.
  • the movable mechanism 11 includes a drive shaft 21, a first holding member 22, a second holding member 23, and a contact spring 24.
  • the drive shaft 21 is connected to the movable contact piece 10.
  • the drive shaft 21 extends in the vertical direction and penetrates the movable contact piece 10 in the vertical direction.
  • the drive shaft 21 is provided so as to be movable in the contact direction Z1 and the opening direction Z2.
  • the drive device 4 moves the movable mechanism 11 between the closed position and the open position by electromagnetic force.
  • the drive device 4 moves the movable contact piece 10 in the contact direction Z1 and the opening direction Z2 via the drive shaft 21.
  • the drive device 4 includes a coil 31, a movable iron core 32, a fixed iron core 33, a yoke 34, and a return spring 35.
  • the coil 31 When a voltage is applied and excited, the coil 31 generates an electromagnetic force that moves the movable iron core 32 in the contact direction Z1.
  • the movable iron core 32 is integrally movably connected to the drive shaft 21.
  • the fixed iron core 33 is arranged at a position facing the movable iron core 32.
  • the yoke 34 is arranged so as to surround the coil 31.
  • the return spring 35 is arranged between the movable iron core 32 and the fixed iron core 33. The return spring 35 urges the movable iron core 32 in the opening direction Z2.
  • FIG. 1 shows a state in which the drive device 4 is not excited.
  • the movable mechanism 11 When the drive device 4 is not excited, the movable mechanism 11 is in the open position. Therefore, the movable contacts 10a and 10b are separated from the fixed contacts 6c and 7c.
  • the movable contact piece 10 When the drive device 4 is not excited, the movable contact piece 10 is pressed in the opening direction Z2 via the movable mechanism 11.
  • FIG. 2 shows a state when the drive device 4 is excited and the movable mechanism 11 moves to the closed position.
  • the movable iron core 32 moves together with the drive shaft 21 in the contact direction Z1.
  • the contact spring 24 is compressed by the second holding member 23.
  • the force that presses the movable contact piece 10 in the contact direction Z1 becomes large, the movable contact piece 10 moves in the contact direction Z1, and the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c.
  • the damping members 5a and 5b are made of resin, and are made of a material such as PBT resin, LCP resin, or urethane resin.
  • the damping members 5a and 5b dampen the vibration when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c.
  • the damping member 5a is provided in contact with the fixed terminal 6.
  • the damping member 5a is arranged between the upper surface portion 2a of the contact case 2 and the fixed terminal 6. Specifically, the damping member 5a is arranged in contact with the upper surface portion 2a and the second surface 6b.
  • the damping member 5a is arranged at a position overlapping the fixed contact 6c when viewed from the moving direction of the movable contact piece 10. That is, the damping member 5a overlaps the fixed contact 6c in the vertical direction.
  • the damping member 5b is provided in contact with the fixed terminal 7.
  • the damping member 5b is arranged between the upper surface portion 2a of the contact case 2 and the fixed terminal 7. Specifically, the damping member 5b is arranged in contact with the upper surface portion 2a and the second surface 7b.
  • the damping member 5b is arranged at a position overlapping the fixed contact 7c when viewed from the moving direction of the movable contact piece 10. That is, the damping member 5b overlaps the fixed contact 7c in the vertical direction.
  • the damping members 5a and 5b are provided in contact with the fixed terminals 6 and 7, the vibration when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c is the damping member 5a. , 5b attenuates. As a result, the collision noise when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c can be suppressed. Further, since the damping members 5a and 5b are arranged at positions overlapping the fixed contacts 6c and 7c when viewed from the moving direction of the movable contact piece 10, when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c. The vibration can be effectively damped by the damping members 5a and 5b.
  • the contact case 2 is made of resin and the fixed terminals 6 and 7 are supported by the contact case 2 terminal support portions 2c and 2d, the movable contacts 10a and 10b are also fixed contacts 6c and 7c by the contact case 2. It is possible to suppress the collision sound when it comes into contact with. That is, in this case, the contact case 2 also functions as a damping member.
  • the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the invention.
  • the shape or arrangement of the contact case 2, the contact device 3, the drive device 4, or the damping members 5a and 5b may be changed.
  • the contact case 2 is made of resin, but the contact case 2 may be made of metal or ceramic.
  • the materials of the damping members 5a and 5b are not limited to the above-described embodiment. It may be formed of a sound absorbing material or a rubber material that can be elastically deformed. For example, as shown in FIG. 3, even if the damping members 5a and 5b are compression springs arranged so as to be expandable and contractible in the moving direction of the movable contact piece 10 on the second surfaces 6b and 7b sides of the fixed terminals 6 and 7. Good. Further, the damping members 5a and 5b may be members having a higher thermal conductivity than air. In this case, the damping members 5a and 5b improve the heat dissipation.
  • the damping members 5a and 5b do not necessarily have to be arranged at positions overlapping the fixed contacts 6c and 7c when viewed from the moving direction of the movable contact piece 10. Further, a part of the damping members 5a and 5b may be exposed from the contact case 2. In this case, the heat generated by the fixed terminals 6 and 7 when energized can be effectively released to the outside of the contact case 2.
  • the contact case 2 may include holes 2e and 2f penetrating in the moving direction of the movable contact piece 10.
  • the second surfaces 6b and 7b of the fixed terminals 6 and 7 are arranged in contact with the upper surface portion 2a of the contact case 2 at a position overlapping the holes 2e and 2f when viewed from the moving direction of the movable contact piece 10, and the holes are formed.
  • Parts 2e and 2f may be filled with damping members 5a and 5b such as urethane and an adhesive.
  • the fixed terminals 6 and 7 may be coated with the damping members 5a and 5b.
  • the damping members 5a and 5b are separate from the contact case 2, but the damping members 5a and 5b may be integrated with the contact case 2. That is, as shown in FIG. 6, at least one of the first surfaces 6a and 7a and the second surfaces 6b and 7b of the fixed terminals 6 and 7 may be arranged in contact with the contact case 2.
  • the second surfaces 6b, 7b of the fixed terminals 6, 7 may be arranged in contact with the inner surface of the upper surface portion 2a.
  • the upper surface portion 2a functions as the damping members 5a and 5b.
  • both the first surfaces 6a and 7a and the second surfaces 6b and 7b of the fixed terminals 6 and 7 are arranged in contact with the contact case 2.
  • the contact case 2 may include a contact portion 12 formed in a wavy shape and in contact with the fixed terminals 6 and 7. In this case, the contact portion 12 functions as the damping members 5a and 5b.
  • the fixed terminals 6 and 7 are supported by the terminal support portions 2c and 2d, but the fixed terminals 6 and 7 may be supported by other members.
  • support portions 41 and 42 for supporting the fixed terminals 6 and 7 may be provided in the contact case 2 made of resin.
  • the fixed terminals 6 and 7 are supported by projecting the support portions 41 and 42 from the upper surface portion 2a toward the fixed terminals 6 and 7 and allowing the fixed terminals 6 and 7 to penetrate the support portions 41 and 42. You may.
  • the support portions 41 and 42 function as damping members 5a and 5b.
  • the shapes of the fixed terminals 6 and 7 are not limited to the above-described embodiment.
  • the fixed terminals 6 and 7 may have a bent shape.
  • the fixed terminals 6 and 7 may be terminals having an L-shaped cross section.
  • the contact case vibrates when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c. It can be effectively attenuated by 2.
  • the present invention it is possible to suppress a collision sound when a movable contact contacts a fixed contact.

Abstract

This electromagnetic relay comprises a drive shaft, a fixed terminal, a movable contact piece, a drive device and an attenuation member. The fixed terminal includes a fixed contact. The fixed terminal is planar and extends in a direction intersecting the drive shaft. The movable contact piece is connected to the drive shaft. The movable contact piece includes a movable contact positioned facing the fixed contact. Via the drive shaft, the drive device moves the movable contact piece in a direction in which the movable contact makes contact with the fixed contact and in a direction in which said movable contact separates therefrom. The attenuation member is provided in contact with the fixed contact and attenuates vibration when the movable contact makes contact with the fixed contact.

Description

電磁継電器Electromagnetic relay
　本発明は、電磁継電器に関する。 The present invention relates to an electromagnetic relay.
　従来、電気回路を開閉する電磁継電器が知られている。特許文献１に記載された電磁継電器は、固定接点を含む固定端子と、可動接点を含む可動接触片と、駆動軸と、駆動装置とを備えている。駆動装置は、駆動軸を介して可動接点が固定接点に接触する方向と開離する方向とに可動接触片を移動させる。 Conventionally, an electromagnetic relay that opens and closes an electric circuit is known. The electromagnetic relay described in Patent Document 1 includes a fixed terminal including a fixed contact, a movable contact piece including the movable contact, a drive shaft, and a drive device. The drive device moves the movable contact piece in the direction in which the movable contact contacts the fixed contact and in the direction in which the movable contact is released via the drive shaft.
特開第５１６３３１８号公報Japanese Unexamined Patent Publication No. 5163318
　従来の電磁継電器では、可動接点が固定接点に接触するときにおいて、可動接点と固定接点との衝突による衝突音が発生するといった問題がある。 The conventional electromagnetic relay has a problem that when a movable contact comes into contact with a fixed contact, a collision sound is generated due to a collision between the movable contact and the fixed contact.
　本発明の課題は、可動接点が固定接点に接触するときの衝突音を抑制することにある。 An object of the present invention is to suppress a collision sound when a movable contact contacts a fixed contact.
　本発明の一態様に係る電磁継電器は、駆動軸と、固定端子と、可動接触片と、駆動装置と、減衰部材と、を備える。固定端子は、固定接点を含む。固定端子は、板状であり、駆動軸と交差する方向に延びている。可動接触片は、駆動軸に連結される。可動接触片は、固定接点に対向して配置された可動接点を含む。駆動装置は、駆動軸を介して可動接点が固定接点に接触する方向及び開離する方向に可動接触片を移動させる。減衰部材は、固定接点に接触して設けられ、可動接点が固定接点に接触するときの振動を減衰させる。 The electromagnetic relay according to one aspect of the present invention includes a drive shaft, a fixed terminal, a movable contact piece, a drive device, and a damping member. Fixed terminals include fixed contacts. The fixed terminal has a plate shape and extends in a direction intersecting the drive shaft. The movable contact piece is connected to the drive shaft. The movable contact piece includes a movable contact arranged so as to face the fixed contact. The drive device moves the movable contact piece in the direction in which the movable contact contacts the fixed contact and in the direction in which the movable contact is released via the drive shaft. The damping member is provided in contact with the fixed contact, and damps the vibration when the movable contact contacts the fixed contact.
　この電磁継電器では、減衰部材が固定端子に接触して設けられているので、可動接点が固定接点に接触するときの振動が減衰部材によって減衰される。これにより、可動接点が固定接点に接触するときの衝突音を抑制することができる。 In this electromagnetic relay, since the damping member is provided in contact with the fixed terminal, the vibration when the movable contact contacts the fixed contact is damped by the damping member. As a result, it is possible to suppress the collision noise when the movable contact contacts the fixed contact.
　固定端子は、固定接点が配置される第１面と、第１面と反対側の第２面とを含んでもよい。減衰部材は、第１面及び第２面の少なくとも一方に設けられてもよい。この場合は、減衰部材によって可動接点が固定接点に接触するときの振動を効果的に減衰させることができる。 The fixed terminal may include a first surface on which fixed contacts are arranged and a second surface opposite to the first surface. The damping member may be provided on at least one of the first surface and the second surface. In this case, the damping member can effectively dampen the vibration when the movable contact contacts the fixed contact.
　電磁継電器は、接点ケースをさらに備えてもよい。接点ケースは、可動接触片の移動方向に貫通する孔部を含んでもよい。固定接点及び可動接触片は、接点ケースに収容されてもよい。固定端子の第２面は、可動接触片の移動方向から見て孔部と重なる位置で接点ケースに接触して配置されてもよい。減衰部材は、孔部に充填されてもよい。この場合は、簡単な構成で可動接点が固定接点に接触するときの振動を減衰させることができる。 The electromagnetic relay may further include a contact case. The contact case may include a hole penetrating in the moving direction of the movable contact piece. The fixed contact and the movable contact piece may be housed in a contact case. The second surface of the fixed terminal may be arranged in contact with the contact case at a position overlapping the hole when viewed from the moving direction of the movable contact piece. The damping member may be filled in the hole. In this case, it is possible to attenuate the vibration when the movable contact contacts the fixed contact with a simple configuration.
　減衰部材は樹脂製であってもよい。 The damping member may be made of resin.
　減衰部材は、第２面側において可動接触片の移動方向に伸縮可能に配置される圧縮バネであってもよい。 The damping member may be a compression spring arranged so as to be expandable and contractible in the moving direction of the movable contact piece on the second surface side.
　減衰部材は、可動接触片の移動方向から見て固定接点と重なる位置に配置されてもよい。この場合は、振動の発生源に近い位置に減衰部材が配置されるので、可動接点が固定接点に接触するときの衝突音をより効果的に抑制することができる。 The damping member may be arranged at a position overlapping the fixed contact when viewed from the moving direction of the movable contact piece. In this case, since the damping member is arranged at a position close to the source of vibration, it is possible to more effectively suppress the collision sound when the movable contact contacts the fixed contact.
電磁継電器は、固定接点及び可動接触片が収容される樹脂製の接点ケースをさらに備えてもよい。減衰部材は、前記接点ケースと一体であってもよい。固定端子の第１面及び第２面の少なくとも一方は、接点ケースに接触して配置されてもよい。この場合は、接点ケースが減衰部材を兼ねるので、部品点数を削減できる。 The electromagnetic relay may further include a resin contact case in which a fixed contact and a movable contact piece are housed. The damping member may be integrated with the contact case. At least one of the first surface and the second surface of the fixed terminal may be arranged in contact with the contact case. In this case, since the contact case also serves as a damping member, the number of parts can be reduced.
　固定端子の第１面及び第２面は、接点ケースに接触して配置されてもよい。この場合においても、可動接点が固定接点に接触するときの衝突音をより効果的に抑制することができる。 The first and second surfaces of the fixed terminal may be arranged in contact with the contact case. Even in this case, the collision noise when the movable contact contacts the fixed contact can be suppressed more effectively.
　接点ケースは、波打ち状に形成され固定端子の第２面に接触する接触部を含んでもよい。この場合は、接触部によって可動接点が固定接点に接触するときの衝突音をより効果的に抑制することができる。 The contact case may include a contact portion that is formed in a wavy shape and contacts the second surface of the fixed terminal. In this case, the collision sound when the movable contact contacts the fixed contact can be more effectively suppressed by the contact portion.
　本発明によれば、可動接点が固定接点に接触するときの衝突音を抑制することができる。 According to the present invention, it is possible to suppress the collision sound when the movable contact contacts the fixed contact.
電磁継電器が開状態のときの電磁継電器の断面模式図である。It is sectional drawing of the electromagnetic relay when the electromagnetic relay is in an open state. 電磁継電器が閉状態のときの電磁継電器の断面模式図である。It is sectional drawing of the electromagnetic relay when the electromagnetic relay is a closed state. 他の実施形態に係る接点ケース周辺の断面模式図である。It is sectional drawing around the contact case which concerns on other embodiment. 他の実施形態に係る接点ケース周辺の断面模式図である。It is sectional drawing around the contact case which concerns on other embodiment. 他の実施形態に係る接点ケース周辺の断面模式図である。It is sectional drawing around the contact case which concerns on other embodiment. 他の実施形態に係る接点ケース周辺の断面模式図である。It is sectional drawing around the contact case which concerns on other embodiment. 他の実施形態に係る接点ケース周辺の断面模式図である。It is sectional drawing around the contact case which concerns on other embodiment. 他の実施形態に係る接点ケース周辺の断面模式図である。It is sectional drawing around the contact case which concerns on other embodiment. 他の実施形態に係る接点ケース周辺の断面模式図である。It is sectional drawing around the contact case which concerns on other embodiment. 他の実施形態に係る接点ケース周辺の断面模式図である。It is sectional drawing around the contact case which concerns on other embodiment.
　以下、本発明の一態様に係る電磁継電器１００の実施形態について、図面を参照して説明する。なお、図面を参照するときにおいて、説明を分かり易くするために図１における上側を「上」、下側を「下」、左側を「左」、右側を「右」として説明する。また、図１の紙面に直交する方向を前後方向として説明する。これらの方向は、説明の便宜上、定義されるものであって、電磁継電器１００の配置方向を限定するものではない。 Hereinafter, an embodiment of the electromagnetic relay 100 according to one aspect of the present invention will be described with reference to the drawings. When referring to the drawings, the upper side in FIG. 1 will be referred to as “upper”, the lower side will be referred to as “lower”, the left side will be referred to as “left”, and the right side will be referred to as “right” in order to make the explanation easier to understand. Further, the direction orthogonal to the paper surface of FIG. 1 will be described as the front-back direction. These directions are defined for convenience of explanation, and do not limit the arrangement direction of the electromagnetic relay 100.
　図１は電磁継電器１００の断面模式図である。図１に示すように、電磁継電器１００は、接点ケース２、接点装置３と、駆動装置４と、減衰部材５ａ，５ｂと、を備えている。 FIG. 1 is a schematic cross-sectional view of the electromagnetic relay 100. As shown in FIG. 1, the electromagnetic relay 100 includes a contact case 2, a contact device 3, a drive device 4, and damping members 5a and 5b.
　接点ケース２は、略四角形の箱型であり、絶縁性を有する材料で形成されている。本実施形態では、接点ケース２は樹脂製である。接点ケース２内には、接点装置３が収容されている。詳細には、接点装置３は、後述する固定接点６ｃ，７ｃ及び可動接触片１０が収容される。 The contact case 2 has a substantially quadrangular box shape and is made of an insulating material. In this embodiment, the contact case 2 is made of resin. The contact device 3 is housed in the contact case 2. Specifically, the contact device 3 accommodates fixed contacts 6c and 7c and a movable contact piece 10 which will be described later.
　接点ケース２は、上面部２ａと、側壁部２ｂと端子支持部２ｃ，２ｄとを含む。上面部２ａは、上面視において略矩形状であり、前後方向及び左右方向に延びている。側壁部２ｂは、上面部２ａの外端から接点装置３の側方を囲むように上下方向に延びている。端子支持部２ｃ，２ｄは、側壁部２ｂを左右方向に貫通する貫通孔によって構成される。 The contact case 2 includes an upper surface portion 2a, a side wall portion 2b, and terminal support portions 2c and 2d. The upper surface portion 2a has a substantially rectangular shape in top view, and extends in the front-rear direction and the left-right direction. The side wall portion 2b extends in the vertical direction from the outer end of the upper surface portion 2a so as to surround the side of the contact device 3. The terminal support portions 2c and 2d are formed by through holes penetrating the side wall portions 2b in the left-right direction.
　接点装置３は、固定端子６，７と、可動接触片１０と、可動機構１１と、を含む。固定端子６，７は、板状の端子であり、導電性を有する材料で形成されている。固定端子６，７は、後述する駆動軸２１と交差する方向に延びている。詳細には、固定端子６，７は、左右方向に延びており、接点ケース２を左右方向に貫通している。固定端子６と固定端子７とは、左右方向に間隔を隔てて配置されている。固定端子６は、端子支持部２ｃに支持されている。固定端子７は、端子支持部２ｄに支持されている。 The contact device 3 includes fixed terminals 6 and 7, a movable contact piece 10, and a movable mechanism 11. The fixed terminals 6 and 7 are plate-shaped terminals and are made of a conductive material. The fixed terminals 6 and 7 extend in a direction intersecting the drive shaft 21 described later. Specifically, the fixed terminals 6 and 7 extend in the left-right direction and penetrate the contact case 2 in the left-right direction. The fixed terminal 6 and the fixed terminal 7 are arranged so as to be spaced apart from each other in the left-right direction. The fixed terminal 6 is supported by the terminal support portion 2c. The fixed terminal 7 is supported by the terminal support portion 2d.
　固定端子６は、第１面６ａと、第２面６ｂと、固定接点６ｃと、外部接続部６ｄとを含む。第１面６ａは、下方を向く面である。第１面６ａは、端子支持部２ｃに接触している。第２面６ｂは、第１面６ａと反対側の面であり、上方を向く面である。 The fixed terminal 6 includes a first surface 6a, a second surface 6b, a fixed contact 6c, and an external connection portion 6d. The first surface 6a is a surface facing downward. The first surface 6a is in contact with the terminal support portion 2c. The second surface 6b is a surface opposite to the first surface 6a and faces upward.
　固定接点６ｃは、第１面６ａに配置されている。固定接点６ｃは、導電性を有する材料で形成されている。固定接点６ｃは、固定端子６と別体である。なお、固定接点６ｃは、固定端子６と一体であってもよい。外部接続部６ｄは、接点ケース２から左方に突出して外部に露出している。 The fixed contact 6c is arranged on the first surface 6a. The fixed contact 6c is made of a conductive material. The fixed contact 6c is separate from the fixed terminal 6. The fixed contact 6c may be integrated with the fixed terminal 6. The external connection portion 6d projects to the left from the contact case 2 and is exposed to the outside.
　固定端子７は、第１面７ａと、第２面７ｂと、固定接点７ｃと、外部接続部７ｄとを含む。第１面７ａは、下方を向く面である。第１面７ａは、端子支持部２ｄに接触している。第２面７ｂは、第１面７ａと反対側の面であり、上方を向く面である。 The fixed terminal 7 includes a first surface 7a, a second surface 7b, a fixed contact 7c, and an external connection portion 7d. The first surface 7a is a surface facing downward. The first surface 7a is in contact with the terminal support portion 2d. The second surface 7b is a surface opposite to the first surface 7a and faces upward.
　固定接点７ｃは、第１面７ａに配置されている。固定接点７ｃは、導電性を有する材料で形成されている。固定接点７ｃは、固定端子７と別体である。なお、固定接点７ｃは、固定端子７と一体であってもよい。外部接続部７ｄは、接点ケース２から右方に突出して外部に露出している。 The fixed contact 7c is arranged on the first surface 7a. The fixed contact 7c is made of a conductive material. The fixed contact 7c is separate from the fixed terminal 7. The fixed contact 7c may be integrated with the fixed terminal 7. The external connection portion 7d projects to the right from the contact case 2 and is exposed to the outside.
　可動接触片１０は、一方向に長い板状部材であり、接点ケース２内で左右方向に延びている。本実施形態では、可動接触片１０の長手方向は、左右方向と一致する。また、可動接触片１０の短手方向は、前後方向と一致する。可動接触片１０は、導電性を有する材料で形成されている。 The movable contact piece 10 is a plate-shaped member that is long in one direction and extends in the left-right direction in the contact case 2. In the present embodiment, the longitudinal direction of the movable contact piece 10 coincides with the left-right direction. Further, the lateral direction of the movable contact piece 10 coincides with the front-rear direction. The movable contact piece 10 is made of a conductive material.
　可動接触片１０は、可動接点１０ａ，１０ｂを含む。可動接点１０ａ，１０ｂは、可動接点１０ａは、固定接点６ｃと対向する位置に配置されており、固定接点６ｃに接触可能である。可動接点１０ｂは、可動接点１０ａと左右方向に間隔を隔てて配置されている。可動接点１０ｂは、固定接点７ｃと対向する位置に配置されており、固定接点７ｃに接触可能である。可動接点１０ａ，１０ｂは、導電性を有する材料で形成されている。可動接点１０ａ，１０ｂは、可動接触片１０と別体である。なお、可動接点１０ａ，１０ｂは、可動接触片１０と一体であってもよい。 The movable contact piece 10 includes movable contacts 10a and 10b. The movable contacts 10a and 10b are arranged at positions where the movable contacts 10a face the fixed contacts 6c and can come into contact with the fixed contacts 6c. The movable contact 10b is arranged at a distance from the movable contact 10a in the left-right direction. The movable contact 10b is arranged at a position facing the fixed contact 7c and can come into contact with the fixed contact 7c. The movable contacts 10a and 10b are made of a conductive material. The movable contacts 10a and 10b are separate from the movable contact piece 10. The movable contacts 10a and 10b may be integrated with the movable contact piece 10.
　可動接触片１０は、可動接点１０ａ，１０ｂが固定接点６ｃ，７ｃに接触する接触方向Ｚ１および開離する開離方向Ｚ２に移動可能に設けられる。接触方向Ｚ１は、図１における上方である。開離方向Ｚ２は、図１における下方である。したがって、接触方向Ｚ１および開離方向Ｚ２は、上下方向に対して平行である。接触方向Ｚ１および開離方向Ｚ２は、可動接触片１０の移動方向の一例である。 The movable contact piece 10 is movably provided in the contact direction Z1 in which the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c and in the opening / separating direction Z2 in which the movable contacts 10a and 10b are separated. The contact direction Z1 is upward in FIG. The separation direction Z2 is downward in FIG. Therefore, the contact direction Z1 and the separation direction Z2 are parallel to the vertical direction. The contact direction Z1 and the release direction Z2 are examples of the moving directions of the movable contact piece 10.
　可動機構１１は、可動接触片１０を支持する。可動機構１１は、固定接点６ｃ，７ｃと可動接点１０ａ，１０ｂとが接触する閉位置と、固定接点６ｃ，７ｃと可動接点１０ａ，１０ｂとが開離する開位置とに移動可能に設けられる。すなわち、可動機構１１は、接触方向Ｚ１と開離方向Ｚ２とに移動可能に設けられる。 The movable mechanism 11 supports the movable contact piece 10. The movable mechanism 11 is movably provided at a closed position where the fixed contacts 6c and 7c and the movable contacts 10a and 10b are in contact with each other and an open position where the fixed contacts 6c and 7c and the movable contacts 10a and 10b are separated from each other. That is, the movable mechanism 11 is provided so as to be movable in the contact direction Z1 and the opening direction Z2.
　可動機構１１は、駆動軸２１と、第１保持部材２２と、第２保持部材２３と、接点バネ２４とを含む。駆動軸２１は、可動接触片１０に連結される。駆動軸２１は、上下方向に延びており、可動接触片１０を上下方向に貫通している。駆動軸２１は、接触方向Ｚ１と開離方向Ｚ２とに移動可能に設けられる。 The movable mechanism 11 includes a drive shaft 21, a first holding member 22, a second holding member 23, and a contact spring 24. The drive shaft 21 is connected to the movable contact piece 10. The drive shaft 21 extends in the vertical direction and penetrates the movable contact piece 10 in the vertical direction. The drive shaft 21 is provided so as to be movable in the contact direction Z1 and the opening direction Z2.
　第１保持部材２２は、可動接触片１０よりも上方で駆動軸２１に固定されている。第２保持部材２３は、可動接触片１０よりも下方で駆動軸２１に固定されている。接点バネ２４は、可動接触片１０と第２保持部材２３の間に配置されている。接点バネ２４は、第２保持部材２３を介して可動接触片１０を接触方向Ｚ１に付勢する。 The first holding member 22 is fixed to the drive shaft 21 above the movable contact piece 10. The second holding member 23 is fixed to the drive shaft 21 below the movable contact piece 10. The contact spring 24 is arranged between the movable contact piece 10 and the second holding member 23. The contact spring 24 urges the movable contact piece 10 in the contact direction Z1 via the second holding member 23.
　駆動装置４は、電磁力によって可動機構１１を閉位置と開位置とに移動させる。駆動装置４は、駆動軸２１を介して可動接触片１０を接触方向Ｚ１および開離方向Ｚ２に移動させる。駆動装置４は、コイル３１と、可動鉄心３２と、固定鉄心３３と、ヨーク３４と、復帰バネ３５と、を含む。 The drive device 4 moves the movable mechanism 11 between the closed position and the open position by electromagnetic force. The drive device 4 moves the movable contact piece 10 in the contact direction Z1 and the opening direction Z2 via the drive shaft 21. The drive device 4 includes a coil 31, a movable iron core 32, a fixed iron core 33, a yoke 34, and a return spring 35.
　コイル３１は、電圧が印加されて励磁されると、可動鉄心３２を接触方向Ｚ１に移動させる電磁力を発生させる。可動鉄心３２は、駆動軸２１に一体移動可能に連結されている。固定鉄心３３は、可動鉄心３２と対向する位置に配置されている。ヨーク３４は、コイル３１を囲むように配置されている。復帰バネ３５は、可動鉄心３２と固定鉄心３３の間に配置されている。復帰バネ３５は、可動鉄心３２を開離方向Ｚ２に付勢する。 When a voltage is applied and excited, the coil 31 generates an electromagnetic force that moves the movable iron core 32 in the contact direction Z1. The movable iron core 32 is integrally movably connected to the drive shaft 21. The fixed iron core 33 is arranged at a position facing the movable iron core 32. The yoke 34 is arranged so as to surround the coil 31. The return spring 35 is arranged between the movable iron core 32 and the fixed iron core 33. The return spring 35 urges the movable iron core 32 in the opening direction Z2.
　図１は、駆動装置４が励磁されていない状態を示している。駆動装置４が励磁されていないときは、可動機構１１が開位置にある。このため、可動接点１０ａ，１０ｂは、固定接点６ｃ，７ｃから開離している。駆動装置４が励磁されていないときは、可動接触片１０が可動機構１１を介して開離方向Ｚ２に押圧されている。 FIG. 1 shows a state in which the drive device 4 is not excited. When the drive device 4 is not excited, the movable mechanism 11 is in the open position. Therefore, the movable contacts 10a and 10b are separated from the fixed contacts 6c and 7c. When the drive device 4 is not excited, the movable contact piece 10 is pressed in the opening direction Z2 via the movable mechanism 11.
　図２は、駆動装置４が励磁されて、可動機構１１が閉位置に移動したときの状態を示している。駆動装置４が励磁されると、可動鉄心３２が駆動軸２１とともに接触方向Ｚ１に移動する。駆動軸２１の接触方向Ｚ１の移動に伴い、第２保持部材２３によって接点バネ２４が圧縮される。これにより、可動接触片１０を接触方向Ｚ１に押圧する力が大きくなり、可動接触片１０が接触方向Ｚ１に移動して、可動接点１０ａ，１０ｂが固定接点６ｃ，７ｃに接触する。 FIG. 2 shows a state when the drive device 4 is excited and the movable mechanism 11 moves to the closed position. When the drive device 4 is excited, the movable iron core 32 moves together with the drive shaft 21 in the contact direction Z1. As the drive shaft 21 moves in the contact direction Z1, the contact spring 24 is compressed by the second holding member 23. As a result, the force that presses the movable contact piece 10 in the contact direction Z1 becomes large, the movable contact piece 10 moves in the contact direction Z1, and the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c.
　減衰部材５ａ，５ｂは、樹脂製であり、ＰＢＴ樹脂、ＬＣＰ樹脂、或いはウレタン樹脂などの材料で形成されている。減衰部材５ａ，５ｂは、可動接点１０ａ，１０ｂが固定接点６ｃ，７ｃに接触するときの振動を減衰させる。 The damping members 5a and 5b are made of resin, and are made of a material such as PBT resin, LCP resin, or urethane resin. The damping members 5a and 5b dampen the vibration when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c.
　減衰部材５ａは、固定端子６に接触して設けられる。減衰部材５ａは、接点ケース２の上面部２ａと固定端子６の間に配置されている。詳細には、減衰部材５ａは、上面部２ａと第２面６ｂに接触して配置されている。減衰部材５ａは、可動接触片１０の移動方向から見て固定接点６ｃと重なる位置に配置されている。すなわち、減衰部材５ａは、固定接点６ｃと上下方向に重なる。 The damping member 5a is provided in contact with the fixed terminal 6. The damping member 5a is arranged between the upper surface portion 2a of the contact case 2 and the fixed terminal 6. Specifically, the damping member 5a is arranged in contact with the upper surface portion 2a and the second surface 6b. The damping member 5a is arranged at a position overlapping the fixed contact 6c when viewed from the moving direction of the movable contact piece 10. That is, the damping member 5a overlaps the fixed contact 6c in the vertical direction.
　減衰部材５ｂは、固定端子７に接触して設けられる。減衰部材５ｂは、接点ケース２の上面部２ａと固定端子７の間に配置されている。詳細には、減衰部材５ｂは、上面部２ａと第２面７ｂに接触して配置されている。減衰部材５ｂは、可動接触片１０の移動方向から見て固定接点７ｃと重なる位置に配置されている。すなわち、減衰部材５ｂは、固定接点７ｃと上下方向に重なる。 The damping member 5b is provided in contact with the fixed terminal 7. The damping member 5b is arranged between the upper surface portion 2a of the contact case 2 and the fixed terminal 7. Specifically, the damping member 5b is arranged in contact with the upper surface portion 2a and the second surface 7b. The damping member 5b is arranged at a position overlapping the fixed contact 7c when viewed from the moving direction of the movable contact piece 10. That is, the damping member 5b overlaps the fixed contact 7c in the vertical direction.
　上記構成の電磁継電器１００では、減衰部材５ａ，５ｂが固定端子６，７に接触して設けられているので、可動接点１０ａ，１０ｂが固定接点６ｃ，７ｃに接触するときの振動が減衰部材５ａ，５ｂによって減衰される。これにより、可動接点１０ａ，１０ｂが固定接点６ｃ，７ｃに接触するときの衝突音を抑制することができる。また、減衰部材５ａ，５ｂは、可動接触片１０の移動方向から見て固定接点６ｃ，７ｃと重なる位置に配置されているので、可動接点１０ａ，１０ｂが固定接点６ｃ，７ｃに接触するときの振動を減衰部材５ａ，５ｂによって効果的に減衰させることができる。 In the electromagnetic relay 100 having the above configuration, since the damping members 5a and 5b are provided in contact with the fixed terminals 6 and 7, the vibration when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c is the damping member 5a. , 5b attenuates. As a result, the collision noise when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c can be suppressed. Further, since the damping members 5a and 5b are arranged at positions overlapping the fixed contacts 6c and 7c when viewed from the moving direction of the movable contact piece 10, when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c. The vibration can be effectively damped by the damping members 5a and 5b.
　また、接点ケース２が樹脂製であり、さらに固定端子６，７が接点ケース２端子支持部２ｃ，２ｄに支持されているので、接点ケース２によっても可動接点１０ａ，１０ｂが固定接点６ｃ，７ｃに接触するときの衝突音を抑制することができる。すなわち、この場合は、接点ケース２が減衰部材としても機能する。 Further, since the contact case 2 is made of resin and the fixed terminals 6 and 7 are supported by the contact case 2 terminal support portions 2c and 2d, the movable contacts 10a and 10b are also fixed contacts 6c and 7c by the contact case 2. It is possible to suppress the collision sound when it comes into contact with. That is, in this case, the contact case 2 also functions as a damping member.
　以上、本発明の一態様に係る電磁継電器の実施形態について説明したが、本発明は上記実施形態に限定されるものではなく、発明の要旨を逸脱しない範囲で種々の変更が可能である。例えば、接点ケース２、接点装置３、駆動装置４或いは減衰部材５ａ，５ｂの形状、或いは配置が変更されてもよい。 Although the embodiment of the electromagnetic relay according to one aspect of the present invention 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. For example, the shape or arrangement of the contact case 2, the contact device 3, the drive device 4, or the damping members 5a and 5b may be changed.
　前記実施形態では、接点ケース２が樹脂製であったが、接点ケース２は金属、或いはセラミック製であってもよい。 In the above embodiment, the contact case 2 is made of resin, but the contact case 2 may be made of metal or ceramic.
　減衰部材５ａ，５ｂの材質は、前記実施形態に限定されるものではない。吸音材や弾性変形可能なゴム材料で形成されてもよい。例えば、図３に示すように、減衰部材５ａ，５ｂは、固定端子６，７の第２面６ｂ，７ｂ側において可動接触片１０の移動方向に伸縮可能に配置される圧縮バネであってもよい。また、減衰部材５ａ，５ｂは、空気よりも熱伝導率が高い部材であってもよい。この場合は、減衰部材５ａ，５ｂによって放熱性が向上する。 The materials of the damping members 5a and 5b are not limited to the above-described embodiment. It may be formed of a sound absorbing material or a rubber material that can be elastically deformed. For example, as shown in FIG. 3, even if the damping members 5a and 5b are compression springs arranged so as to be expandable and contractible in the moving direction of the movable contact piece 10 on the second surfaces 6b and 7b sides of the fixed terminals 6 and 7. Good. Further, the damping members 5a and 5b may be members having a higher thermal conductivity than air. In this case, the damping members 5a and 5b improve the heat dissipation.
　減衰部材５ａ，５ｂは、図４に示すように、必ずしも可動接触片１０の移動方向から見て固定接点６ｃ，７ｃと重なる位置に配置されていなくてもよい。また、減衰部材５ａ，５ｂの一部が接点ケース２から露出していてもよい。この場合は、通電時における固定端子６，７の発熱を接点ケース２の外部に効果的に逃がすことができる。 As shown in FIG. 4, the damping members 5a and 5b do not necessarily have to be arranged at positions overlapping the fixed contacts 6c and 7c when viewed from the moving direction of the movable contact piece 10. Further, a part of the damping members 5a and 5b may be exposed from the contact case 2. In this case, the heat generated by the fixed terminals 6 and 7 when energized can be effectively released to the outside of the contact case 2.
　図５に示すように、接点ケース２は、可動接触片１０の移動方向に貫通する孔部２ｅ，２ｆを含んでもよい。この場合、固定端子６，７の第２面６ｂ，７ｂを可動接触片１０の移動方向から見て孔部２ｅ，２ｆと重なる位置で接点ケース２の上面部２ａに接触して配置し、孔部２ｅ，２ｆにウレタンや接着剤等の減衰部材５ａ，５ｂを充填してもよい。或いは、図６に示すように、固定端子６，７が減衰部材５ａ，５ｂによってコーティングされていてもよい。 As shown in FIG. 5, the contact case 2 may include holes 2e and 2f penetrating in the moving direction of the movable contact piece 10. In this case, the second surfaces 6b and 7b of the fixed terminals 6 and 7 are arranged in contact with the upper surface portion 2a of the contact case 2 at a position overlapping the holes 2e and 2f when viewed from the moving direction of the movable contact piece 10, and the holes are formed. Parts 2e and 2f may be filled with damping members 5a and 5b such as urethane and an adhesive. Alternatively, as shown in FIG. 6, the fixed terminals 6 and 7 may be coated with the damping members 5a and 5b.
　前記実施形態では、減衰部材５ａ，５ｂが接点ケース２と別体であったが、減衰部材５ａ，５ｂは、接点ケース２と一体であってもよい。すなわち、図６に示すように、固定端子６，７の第１面６ａ，７ａ及び第２面６ｂ，７ｂの少なくとも一方が接点ケース２に接触して配置されてもよい。例えば、固定端子６，７の第２面６ｂ，７ｂが上面部２ａの内面に接触して配置させてもよい。この場合は、上面部２ａが減衰部材５ａ，５ｂとして機能する。なお、固定端子６，７の第１面６ａ，７ａ及び第２面６ｂ，７ｂの両面が接点ケース２に接触して配置されることがより好ましい。また、図７に示すように、接点ケース２は、波打ち状に形成され固定端子６，７に接触する接触部１２を含んでもよい。この場合は、接触部１２が減衰部材５ａ，５ｂとして機能する。 In the above embodiment, the damping members 5a and 5b are separate from the contact case 2, but the damping members 5a and 5b may be integrated with the contact case 2. That is, as shown in FIG. 6, at least one of the first surfaces 6a and 7a and the second surfaces 6b and 7b of the fixed terminals 6 and 7 may be arranged in contact with the contact case 2. For example, the second surfaces 6b, 7b of the fixed terminals 6, 7 may be arranged in contact with the inner surface of the upper surface portion 2a. In this case, the upper surface portion 2a functions as the damping members 5a and 5b. It is more preferable that both the first surfaces 6a and 7a and the second surfaces 6b and 7b of the fixed terminals 6 and 7 are arranged in contact with the contact case 2. Further, as shown in FIG. 7, the contact case 2 may include a contact portion 12 formed in a wavy shape and in contact with the fixed terminals 6 and 7. In this case, the contact portion 12 functions as the damping members 5a and 5b.
　前記実施形態では、固定端子６，７が端子支持部２ｃ，２ｄに支持されていたが、固定端子６，７は、他の部材で支持されてもよい。或いは、図９に示すように、樹脂製の接点ケース２内において、固定端子６，７を支持する支持部４１，４２を設けてもよい。例えば、上面部２ａから固定端子６，７に向かう方向に支持部４１，４２を突出させて、固定端子６，７が支持部４１，４２を貫通することで、固定端子６，７が支持されてもよい。この場合、支持部４１，４２が減衰部材５ａ，５ｂとして機能する。 In the above embodiment, the fixed terminals 6 and 7 are supported by the terminal support portions 2c and 2d, but the fixed terminals 6 and 7 may be supported by other members. Alternatively, as shown in FIG. 9, support portions 41 and 42 for supporting the fixed terminals 6 and 7 may be provided in the contact case 2 made of resin. For example, the fixed terminals 6 and 7 are supported by projecting the support portions 41 and 42 from the upper surface portion 2a toward the fixed terminals 6 and 7 and allowing the fixed terminals 6 and 7 to penetrate the support portions 41 and 42. You may. In this case, the support portions 41 and 42 function as damping members 5a and 5b.
　固定端子６，７の形状は前記実施形態に限定されるものではない。固定端子６，７は、屈曲した形状であってもよい。例えば、図１０に示すように、固定端子６，７は、断面がＬ字状の端子であってもよい。この場合は、固定端子６，７において、上下方向に延びる屈曲部６ｅ，６ｆを接点ケース２で支持することで、可動接点１０ａ，１０ｂが固定接点６ｃ，７ｃに接触するときの振動を接点ケース２によって効果的に減衰させることができる。 The shapes of the fixed terminals 6 and 7 are not limited to the above-described embodiment. The fixed terminals 6 and 7 may have a bent shape. For example, as shown in FIG. 10, the fixed terminals 6 and 7 may be terminals having an L-shaped cross section. In this case, at the fixed terminals 6 and 7, by supporting the bent portions 6e and 6f extending in the vertical direction with the contact case 2, the contact case vibrates when the movable contacts 10a and 10b come into contact with the fixed contacts 6c and 7c. It can be effectively attenuated by 2.
　本発明によれば、本発明によれば、可動接点が固定接点に接触するときの衝突音を抑制することができる。 According to the present invention, according to the present invention, it is possible to suppress a collision sound when a movable contact contacts a fixed contact.
２　接点ケース
２ｅ，２ｆ　孔部
４　駆動装置
５ａ，５ｂ　減衰部材
６，７　固定端子
６ａ，７ａ　第１面
６ｂ，７ｂ　第１面
６ｃ，７ｃ　固定接点
１０　　可動接触片
１０ａ，１０ｂ　可動接点
１２　接触部
２１　　駆動軸
１００　電磁継電器 2 Contact case 2e, 2f Hole 4 Drive device 5a, 5b Attenuating member 6,7 Fixed terminal 6a, 7a First surface 6b, 7b First surface 6c, 7c Fixed contact 10 Movable contact piece 10a, 10b Movable contact 12 Contact 21 Drive shaft 100 Electromagnetic relay

Claims (9)

  1. 駆動軸と、
    固定接点を含み、前記駆動軸と交差する方向に延びる板状の固定端子と、
    　前記固定接点に対向して配置された可動接点を含み、前記駆動軸に連結された可動接触片と、
    前記駆動軸を介して前記可動接点が前記固定接点に接触する方向及び開離する方向に前記可動接触片を移動させる駆動装置と、
    　前記固定端子に接触して設けられ、前記可動接点が前記固定接点に接触するときの振動を減衰させる減衰部材と、
    を備える電磁継電器。     Drive shaft and
    A plate-shaped fixed terminal including a fixed contact and extending in a direction intersecting the drive shaft,
    A movable contact piece, which includes a movable contact arranged so as to face the fixed contact and is connected to the drive shaft,
    A drive device that moves the movable contact piece in a direction in which the movable contact contacts the fixed contact and in a direction in which the movable contact is opened and closed via the drive shaft.
    A damping member that is provided in contact with the fixed terminal and attenuates vibration when the movable contact contacts the fixed contact.
    An electromagnetic relay equipped with.
  2. 　前記固定端子は、前記固定接点が配置される第１面と、前記第１面と反対側の第２面とを含み、
    　前記減衰部材は、前記第１面及び第２面の少なくとも一方に設けられている、
    請求項１に記載の電磁継電器。     The fixed terminal includes a first surface on which the fixed contact is arranged and a second surface opposite to the first surface.
    The damping member is provided on at least one of the first surface and the second surface.
    The electromagnetic relay according to claim 1.
  3. 　前記可動接触片の移動方向に貫通する孔部を含み、前記固定接点及び前記可動接触片が収容される接点ケースをさらに備え、
    　前記固定端子の前記第２面は、前記可動接触片の移動方向から見て前記孔部と重なる位置で前記接点ケースに接触して配置され、
    　前記減衰部材は、前記孔部に充填されている、
    請求項２に記載の電磁継電器。     A contact case including a hole penetrating in the moving direction of the movable contact piece, the fixed contact, and a contact case in which the movable contact piece is housed is further provided.
    The second surface of the fixed terminal is arranged in contact with the contact case at a position overlapping the hole when viewed from the moving direction of the movable contact piece.
    The damping member is filled in the hole.
    The electromagnetic relay according to claim 2.
  4. 　前記減衰部材は樹脂製である、
    請求項１から３のいずれか１項に記載の電磁継電器。     The damping member is made of resin.
    The electromagnetic relay according to any one of claims 1 to 3.
  5. 　前記減衰部材は、前記第２面側において前記可動接触片の移動方向に伸縮可能に配置される圧縮バネである、
    請求項２に記載の電磁継電器。     The damping member is a compression spring arranged so as to be expandable and contractible in the moving direction of the movable contact piece on the second surface side.
    The electromagnetic relay according to claim 2.
  6. 　前記減衰部材は、前記可動接触片の移動方向から見て前記固定接点と重なる位置に配置されている、
    請求項１から５のいずれか１項に記載の電磁継電器。     The damping member is arranged at a position overlapping the fixed contact when viewed from the moving direction of the movable contact piece.
    The electromagnetic relay according to any one of claims 1 to 5.
  7. 　前記固定接点及び前記可動接触片が収容される樹脂製の接点ケースをさらに備え、
    　前記減衰部材は、前記接点ケースと一体であり、
    　前記固定端子の前記第１面及び第２面の少なくとも一方は、前記接点ケースに接触して配置される、
    請求項２に記載の電磁継電器。     Further provided with a resin contact case in which the fixed contact and the movable contact piece are housed.
    The damping member is integrated with the contact case and
    At least one of the first surface and the second surface of the fixed terminal is arranged in contact with the contact case.
    The electromagnetic relay according to claim 2.
  8. 　前記固定端子の前記第１面及び前記第２面は、前記接点ケースに接触して配置される、
    請求項７に記載の電磁継電器。     The first surface and the second surface of the fixed terminal are arranged in contact with the contact case.
    The electromagnetic relay according to claim 7.
  9. 　前記接点ケースは、波打ち状に形成され前記固定端子の前記第２面に接触する接触部を含む、
    　請求項７又は８に記載の電磁継電器。
          The contact case includes a contact portion formed in a wavy shape and in contact with the second surface of the fixed terminal.
    The electromagnetic relay according to claim 7 or 8.
PCT/JP2020/042581 2019-12-19 2020-11-16 Electromagnetic relay WO2021124755A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5736649U (en) * 1980-08-08 1982-02-26
JPH0270335U (en) * 1988-11-17 1990-05-29
JPH0917306A (en) * 1995-06-30 1997-01-17 Original Denki Kk Electromagnetic relay
JP2012199087A (en) * 2011-03-22 2012-10-18 Panasonic Corp Contact device
JP2013191480A (en) * 2012-03-15 2013-09-26 Omron Corp Switch and method for manufacturing same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5736649U (en) * 1980-08-08 1982-02-26
JPH0270335U (en) * 1988-11-17 1990-05-29
JPH0917306A (en) * 1995-06-30 1997-01-17 Original Denki Kk Electromagnetic relay
JP2012199087A (en) * 2011-03-22 2012-10-18 Panasonic Corp Contact device
JP2013191480A (en) * 2012-03-15 2013-09-26 Omron Corp Switch and method for manufacturing same

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