CN109427508B - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
CN109427508B
CN109427508B CN201810743138.9A CN201810743138A CN109427508B CN 109427508 B CN109427508 B CN 109427508B CN 201810743138 A CN201810743138 A CN 201810743138A CN 109427508 B CN109427508 B CN 109427508B
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CN
China
Prior art keywords
movable plate
position restricting
restricting wall
wall portion
pair
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Application number
CN201810743138.9A
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Chinese (zh)
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CN109427508A (en
Inventor
高桥庆
田中弘泰
林田靖雄
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Omron Corp
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Omron Corp
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/54Contact arrangements
    • H01H50/56Contact spring sets
    • H01H50/58Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature

Abstract

The invention provides an electromagnetic relay having high conductivity. The electromagnetic relay includes: the electromagnetic switch includes a housing, a pair of fixed terminals each having a fixed contact portion, a movable contact piece having a pair of movable contact portions, a rotatable movable plate to which the movable contact piece is connected, and an electromagnet portion that rotates the movable plate forward and backward about a rotation axis in response to excitation and non-excitation. The movable plate is connected to a movable contact piece at an intermediate portion in an extending direction of the rotating shaft, and a positioning protrusion that defines a return position of the movable plate is provided at one end portion in the extending direction of the rotating shaft, the one end portion being disposed so as to face the movable plate or the position restricting wall portion.

Description

Electromagnetic relay
Technical Field
The present invention relates to an electromagnetic relay.
Background
Patent document 1 discloses an electromagnetic relay including: the electromagnetic contactor includes a rectangular parallelepiped housing including a base and a cover, a pair of fixed terminals fixed to a bottom surface of the base of the housing and having fixed contact portions, a spacer provided with a pair of movable contact portions facing the fixed contact portions, and an electromagnet block rotatably supporting the spacer and rotating the spacer in response to excitation/non-excitation.
Patent document 1: japanese patent laid-open publication No. 2017-27892
In the electromagnetic relay, an insulating rib is provided to partition a pair of movable contact portions, and the reset position of the spacer (that is, the position of the spacer at which each movable contact portion is farthest from the opposing fixed contact portion) is defined by the rib. Therefore, the pair of movable contact portions are connected so as to bypass the insulating rib, and the conduction path between the pair of movable contact portions becomes long, thereby increasing the resistance. As a result, it is sometimes difficult to achieve high conductivity in the electromagnetic relay.
Disclosure of Invention
Accordingly, an object of the present invention is to provide an electromagnetic relay having high conductivity.
An electromagnetic relay according to an example of the present invention includes: a housing having a housing portion provided with a position restricting wall portion therein; a pair of fixed terminals disposed in the housing portion, each having a fixed contact portion facing the position restricting wall portion, and electrically independently fixed to the housing; a movable contact piece provided with a pair of movable contact portions which are disposed between the position restricting wall portion and the pair of fixed terminals, which face the fixed contact portions of the pair of fixed terminals, and which are respectively contactable with or separable from the facing fixed contact portions; a movable plate connected to the movable contact piece and rotatable together with the movable contact piece in a contact/separation direction in which the pair of movable contact portions are brought into contact with or separated from the opposing fixed contact portions; an electromagnet portion that is disposed inside the housing portion, that supports the movable plate rotatably about a rotation axis extending in a direction intersecting the contact and separation direction, and that rotates the movable plate in the forward and reverse directions about the rotation axis in response to excitation and non-excitation, the movable plate extending in the extension direction of the rotation axis, and the movable contact piece being connected to an intermediate portion in the extension direction of the rotation axis, and that is provided at one end portion in the extension direction of the rotation axis, either the movable plate or the position restricting wall portion, with a positioning projection portion that is disposed so as to face the movable plate or the position restricting wall portion, and that defines a position of the movable plate at which each of the pair of movable contact portions is farthest (separated) from the opposing fixed contact portion, that is, a return position of the movable plate And (4) placing.
According to the electromagnetic relay, the movable contact piece is connected to the middle of the movable plate in the extending direction of the rotating shaft, and the positioning protrusion that defines the reset position of the movable plate is provided on one end of the rotating shaft in the extending direction of the movable plate, on either the movable plate or the position restricting wall. This can minimize the conduction path between the pair of movable contact portions of the movable contact piece and reduce the resistance thereof, thereby realizing an electromagnetic relay having high conductivity.
Drawings
Fig. 1 is a perspective view of an electromagnetic relay according to an example of the present invention;
fig. 2 is a perspective view of the electromagnetic relay of fig. 1 with a cover removed;
fig. 3 is a perspective view of the electromagnetic relay of fig. 1 with a housing removed;
FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2;
fig. 5 is a perspective view showing a first modification of the electromagnetic relay of fig. 1;
fig. 6 is a cross-sectional view showing a second modification of the electromagnetic relay of fig. 1.
Description of the reference numerals
1 electromagnetic relay
10 casing
11 substrate
12 cover
13 storage part
14 position limiting wall part
141 contact wall part
21. 22 fixed terminal
23. 24 fixed contact part
30 electromagnet part
31 reel (spool)
32 coil
33 coil terminal
34 magnetic yoke
341 longitudinal plate part
342 transverse plate part
35 iron core
351 first end portion
352 second end portion
36 support socket
37 projecting part
40 spacer (one example of movable plate)
41 iron sheet
42 rotating shaft part
43 projection part
44 return spring
45 positioning protrusion
451 first part
452 second part
453 inclined plane
46 Movable insulation table
50 movable contact piece
51 Movable contact
52 connecting part
53. 54 movable contact part
60 rotating shaft
P reset position
Detailed Description
An example of the present invention will be described below with reference to the drawings. In the following description, terms indicating specific directions or positions (for example, terms including "upper", "lower", "right" and "left") are used as necessary, but the terms are used for easy understanding of the present invention with reference to the drawings, and the technical scope of the present invention is not defined by the meanings of the terms. The following description is merely exemplary in nature and is not intended to limit the present invention, its applications, or uses. The drawings are schematic, and the ratios of the dimensions and the like do not necessarily match the actual ratios.
As shown in fig. 1, an electromagnetic relay 1 according to an example of the present invention includes a substantially rectangular parallelepiped case 10. As shown in fig. 2, a pair of fixed terminals 21 and 22 (only one fixed terminal 21 is shown in fig. 2) is fixed to the housing 10. Further, a housing portion 13 is provided inside the case 10. The housing portion 13 is provided with an electromagnet portion 30 and a spacer (spacer)40 which is an example of a movable plate rotatably supported by the electromagnet portion 30. A movable contact piece 50 is connected to the spacer 40.
As shown in fig. 1, the case 10 is composed of a rectangular base 11 in a plan view and a cover 12 covering an upper surface of the base 11, and as shown in fig. 2, a housing 13 surrounded by the base 11 and the cover 12 is provided inside the case. A position regulating wall 14 constituting a part of the housing portion 13 is provided on one of the peripheral edge portions of the base 11 extending in the longitudinal direction (i.e., the peripheral edge portion on the near side in fig. 2). Contact wall portions 141 that come into contact with positioning protrusions 45 of spacers 40, which will be described later, are provided on both longitudinal end portions of the base 11 of the position restricting wall portion 14.
As shown in fig. 2, the fixed terminals 21 and 22 have a plate shape, extend from the outside of the housing 10 to the housing portion 13, and are electrically independently fixed to the base 11 of the housing 10. The fixed terminals 21 and 22 are arranged in line along the longitudinal direction of the base 11 with their plate surfaces facing the position regulating wall 14. The plate surfaces of the fixed terminals 21 and 22 are provided with fixed contact portions 23 and 24, respectively, which are disposed in the housing portion 13 and face the position restricting wall portion 14.
As shown in fig. 2, the electromagnet portion 30 is disposed inside the housing portion 13 on the opposite side of the position regulating wall portion 14 in the short-side direction of the base 11 with respect to the pair of fixed terminals 21, 22. The electromagnet portion 30 includes: an insulating bobbin (spool)31, a coil 32 wound around the bobbin 31, a coil terminal 33 fixed to the bobbin 31 and connected to the coil 32, and a plate-shaped yoke 34 bent in a substantially L-shape.
As shown in fig. 4, a rod-shaped iron core 35 extending in the short-side direction of the base 11 is provided inside the drum 31, and a first end 351 in the extending direction thereof protrudes and is exposed from the drum 31 so as to face the spacer 40. Further, a second end portion 352 of the core 35 in the extending direction protrudes from the drum 31 on the opposite side of the position regulating wall portion 14 in the short side direction of the base 11, and is fixed to the yoke 34. The yoke 34 is configured by a vertical plate portion 341 extending along an end surface (i.e., the right end surface in fig. 5) on the opposite side of the position regulating wall portion 14 in the short side direction of the base 11 of the drum 31, and a horizontal plate portion 342 extending along an end surface (i.e., the upper end surface in fig. 5) in the direction away from the base 11 of the drum 31.
A pair of support receiving portions 36 are provided at edges of the lateral plate portion 342 on the side of the pair of fixed terminals 21 and 22, and the pair of support receiving portions 36 support the spacer 40 so as to be rotatable about a rotation shaft 60 which is an imaginary axis extending in the longitudinal direction of the base 11. Further, a projection 37 that projects upward from the lateral plate portion 342 of the yoke 34 and connects one end of the return spring 44 is provided on the upper end surface of the electromagnet portion 30.
As shown in fig. 2, the spacer 40 has a substantially rectangular plate shape, and is disposed so that the plate surface thereof faces the position restricting wall portion 14. The spacer 40 has a plate-shaped iron piece 41 whose plate surface is disposed so as to face the first end 351 of the iron core 35 of the electromagnet portion 30. A turning shaft 42 that extends in the longitudinal direction of the base 11 and constitutes a turning shaft 60 is provided at one end (i.e., the upper end in fig. 2) of the spacer 40 of the iron piece 41 that is distant from the base 11 in the short-side direction.
Both ends in the extending direction of the rotating shaft 42 are respectively locked to the pair of support receiving portions 36 of the electromagnet portion 30, and the spacer 40 is rotatable about the rotating shaft 60. Further, a projection 43 to which the other end of the return spring 44 is connected is provided at an intermediate portion of the turning shaft portion 42. The return spring 44 biases the upper end portion of the spacer 40 in the direction away from the position restricting wall portion 14 in the short side direction of the base 11 via the protrusion portion 43.
As shown in fig. 2, the movable contact piece 50 is connected to the spacer 40 at an intermediate position in the extending direction of the rotating shaft 60 (substantially at the center in the extending direction of the rotating shaft 60 in this embodiment). The movable contact piece 50 is provided on the plate surface of the spacer 40 on the position restricting wall portion 14 side and is formed integrally with the movable insulating base 46 fixed to the iron piece 41. The movable contact piece 50 includes a movable contact 51 disposed between the position restricting wall 14 and the pair of fixed terminals 21 and 22 and facing the fixed contact portions 23 and 24 of the pair of fixed terminals 21 and 22, and a thin plate-like connecting portion 52 connecting the movable contact 51 and the spacer 40.
The movable contact 51 has a substantially rectangular plate shape and extends in the longitudinal direction of the base 11. As shown in fig. 3, the movable contact 51 is provided with a pair of movable contact portions 53 and 54 which are opposed to the respective fixed contact portions 23 and 24 and are arranged so as to be contactable with or separable from the opposed fixed contact portions 23 and 24, respectively. The movable contact portions 53 and 54 rotate with the rotation of the spacer 40, and thereby contact or separate with respect to the opposing fixed contact portions 23 and 24. That is, the spacer 40 is configured to be rotatable together with the movable contact piece 50 in a contact/separation direction in which the pair of movable contact portions 53 and 54 are brought into contact with or separated from the opposing fixed contact portions 23 and 24, respectively.
As shown in fig. 2, positioning protrusions 45 are provided on both ends of the spacer 40 in the extending direction of the rotating shaft 60, and the positioning protrusions 45 are disposed so as to face the position restricting wall 14, and define the reset position P of the spacer 40 (i.e., the position of the spacer 40 at which each of the movable contact portions 53 and 54 is farthest from the opposing fixed contact portions 23 and 24 (shown in fig. 4)).
As shown in fig. 3 and 4, each of the positioning protrusions 45 has an L-shape including a first member 451 and a second member 452, the first member 451 projects from the spacer 40 toward the position restricting wall 14 in the contact and separation direction (i.e., the substantially right-left direction in fig. 4), and the second member 452 intersects the contact and separation direction and the extending direction of the rotating shaft 60 (i.e., the paper surface penetrating direction in fig. 4) from the end of the first member 451 on the side farther from the spacer 40, extends in the direction farther from the rotating shaft 60, and at least partially faces the position restricting wall 14.
As shown in fig. 4, an inclined surface 453 is provided at a distal end portion of each second member 452, which is farther from the first member 451, the inclined surface 453 facing the position restricting wall portion 14 and inclined in a direction away from the position restricting wall portion 14 as the second member is farther from the first member 451. That is, the second members 452 of the positioning projection 45 each have the same inclined surface 453. The inclined surface 453 is in contact with the contact wall portions 141 provided at both ends of the base 11 in the longitudinal direction, of the position restricting wall portion 14. By changing the position of the contact wall portion 141 in the short-side direction of the base 11, the range of rotation of the spacer 40 can be changed. As a result, the insulation distance between the pair of fixed terminals 21 and 22 and the movable contact piece 50 can be changed.
Next, the operation of the electromagnetic relay 1 will be described.
In a state where no current is supplied to the coil 32 of the electromagnet portion 30, as shown in fig. 4, the spacer 40 is biased in the short-side direction of the base 11 and in a direction away from the position restricting wall portion 14 by the return spring 44, and is held at a return position P where each of the movable contact portions 53, 54 is separated (separated) farthest from the opposing fixed contact portions 23, 24. When a current is supplied to the electromagnet portion 30, a magnetic attraction force acts between the first end 351 of the core 35 of the electromagnet portion 30 and the iron piece 41 of the spacer 40, and the iron piece 41 of the spacer 40 is attracted to the core 35 of the electromagnet portion 30. Thereby, the spacer 40 rotates counterclockwise about the rotation shaft 60 in the plan view of fig. 4 against the elastic force of the return spring 44, and is held at the operating position where each of the movable contact portions 53 and 54 contacts the opposing fixed contact portions 23 and 24.
When the supply of the current to the electromagnet portion 30 is stopped, the magnetic attraction acting between the first end 351 of the iron core 35 of the electromagnet portion 30 and the iron piece 41 of the spacer 40 disappears. Thus, the spacer 40 rotates clockwise about the rotation shaft 60 in the plan view of fig. 4 by the elastic force of the return spring 44, and is held at the return position P.
That is, the electromagnet portion 30 rotates the partition 40 forward and backward (forward and reverse) around the rotation axis 60 between the position restriction wall portion 14 and the pair of fixed hot box portions 23 and 24 according to the excitation and non-excitation of the coil 32.
In the electromagnetic relay 1, the movable contact piece 50 is connected to the center of the spacer 40 in the extending direction of the rotating shaft 60, and the positioning protrusions 45 that define the reset position P of the spacer 40 are provided at both ends of the spacer 40 in the extending direction of the rotating shaft 60. This can minimize the conduction path (i.e., the straight path) between the pair of movable contact portions 53 and 54 of the movable contact piece 50 and reduce the resistance thereof, thereby realizing an electromagnetic relay having high conductivity.
The positioning protrusions 45 are provided at both ends of the rotating shaft 60 in the extending direction. Thereby, the reset position P of the spacer 40 can be specified more accurately.
The positioning projection 45 has an L-shape formed by a first member 451 and a second member 452, the first member 451 projects from the spacer 40 toward the position restricting wall 14 in the contact and separation direction, and the second member 452 intersects the contact and separation direction and the extending direction of the rotating shaft 60 (i.e., the paper surface penetrating direction in fig. 4) from the end of the first member 451 on the side farther from the spacer 40, extends in the direction farther from the rotating shaft 60, and at least partially faces the position restricting wall 14. The positioning projection 45 can increase the plate thickness of the pair of fixed terminals 21 and 22, and as a result, the electromagnetic relay 1 having a high degree of freedom in design can be realized.
Further, an inclined surface 453 is provided at a distal end portion of the second member 452 of the positioning protrusion 45, the distal end portion being distant from the first member 451, the inclined surface being opposed to the position restricting wall portion 14 and inclined in a direction of being distant from the position restricting wall portion 14 as the inclined surface is distant from the first member 451. This allows the positioning projection 45 and the position regulating wall 14 to come into contact with each other via the inclined surface 453, and thus the reset position P of the spacer 40 can be more accurately defined.
The second members 452 of the positioning projection 45 have the same inclined surface 453. Accordingly, the positioning protrusions 45 of the spacer 40 can contact the position regulating wall 14 via the same inclined surface 453, and thus the reset position P of the spacer 40 can be more accurately defined.
In the electromagnetic relay 1, the positioning protrusions 45 are provided on both ends of the spacer 40 in the extending direction of the rotating shaft 60, but the present invention is not limited thereto. As shown in fig. 5 and 6, the positioning protrusion 45 may be provided on either the spacer 40 or the position regulating wall 14 at one end in the extending direction of the rotating shaft 60. That is, the electromagnetic relay 1 having a high degree of freedom in design can be realized.
The positioning protrusion 45 is not limited to the case of being formed of the first member 451 and the second member 452, and may be formed of only the second member 452 without the first member 451, for example.
The inclined surface 453 of the second member 452 of the positioning projection 45 may be omitted depending on the design of the electromagnetic relay 1.
The various embodiments of the present invention have been described in detail above with reference to the drawings, and finally, various embodiments of the present invention will be described. In the following description, reference numerals are added to the description, by way of example.
An electromagnetic relay 1 according to a first aspect of the present invention includes: a housing 10 having a housing portion 13 provided with a position restricting wall portion 14 therein; a pair of fixed terminals 21 and 22 which are disposed in the housing portion 13, have fixed contact portions 23 and 24 facing the position restricting wall portion 14, and are electrically independently fixed to the housing 10; a movable contact piece 50 provided with a pair of movable contact portions 53 and 54 which are disposed between the position restricting wall portion 14 and the pair of fixed terminals 21 and 22, which face the fixed contact portions 23 and 24 of the pair of fixed terminals 21 and 22, respectively, and which can be brought into contact with or separated from the facing fixed contact portions 23 and 24, respectively; a movable plate 40 connected to the movable contact piece 50 and rotatable together with the movable contact piece 50 in a contact/separation direction in which the pair of movable contact portions 53 and 54 are brought into contact with or separated from the opposing fixed contact portions 23 and 24, respectively; an electromagnet portion 30 which is disposed inside the housing portion 13 on the opposite side of the position restricting wall portion 14 in the contact and separation direction with respect to the pair of fixed terminals 21, 22, supports the movable plate 40 so as to be rotatable about a rotation shaft 60 extending in the direction intersecting the contact and separation direction, and rotates the movable plate 40 about the rotation shaft 60 in the forward and reverse directions in response to excitation and non-excitation, wherein the movable plate 40 extends in the extending direction of the rotation shaft 60, the movable contact piece 50 is connected to the middle in the extending direction of the rotation shaft 60, and a positioning protrusion 45 is provided on one end portion in the extending direction of the rotation shaft 60, on either the movable plate 40 or the position restricting wall portion 14, and the positioning protrusion 45 is disposed so as to face the movable plate 40 or the position restricting wall portion 14, the reset position P of the movable plate 40 is defined as a position where each of the pair of movable contact portions 53 and 54 is farthest from the corresponding fixed contact portion 23 or 24 with respect to the movable plate 40.
According to the electromagnetic relay 1 of the first aspect, the movable contact piece 50 is connected to the middle of the movable plate 40 in the extending direction of the rotating shaft 60, and the positioning protrusion 45 that defines the reset position P of the movable plate 40 is provided at both ends of the movable plate 40 in the extending direction of the rotating shaft 60. This can minimize the conduction path between the pair of movable contact portions 53 and 54 of the movable contact piece 50 and reduce the resistance thereof, thereby realizing the electromagnetic relay 1 having high conductivity.
In the electromagnetic relay 1 according to the second aspect of the present invention, the positioning protrusions 45 are provided at both ends in the extending direction of the rotating shaft 60.
According to the electromagnetic relay 1 of the second aspect, the reset position P of the movable plate 40 can be more accurately defined.
In the electromagnetic relay 1 according to the third aspect of the present invention, the positioning projection 45 is provided on the movable plate 40.
According to the electromagnetic relay 1 of the third aspect, the electromagnetic relay 1 having a high degree of freedom in design can be realized.
In the electromagnetic relay 1 according to the fourth aspect of the present invention, the positioning projection 45 has an L-shape formed by the first member 451 and the second member 452, the first member 451 projects from the movable plate 40 toward the position restricting wall 14 in the contact and separation direction, and the second member 452 intersects the contact and separation direction and the extending direction of the rotating shaft 60 from the end of the first member 451 on the side farther from the spacer 40 and extends in the direction away from the rotating shaft 60, and at least a part of the second member 452 faces the position restricting wall 14.
According to the electromagnetic relay 1 of the fourth aspect, the electromagnetic relay 1 having a high degree of freedom in design can be realized.
In the electromagnetic relay 1 according to the fifth aspect of the present invention, the inclined surface 453 is provided at the distal end portion of the second member 452, which is farther from the first member 451, so as to face the position restricting wall 14 and incline in a direction away from the position restricting wall 14 as the distance from the first member 451 increases.
According to the electromagnetic relay 1 of the fifth aspect, the positioning projection 45 and the position restricting wall 14 can be brought into contact with each other via the inclined surface 453, and therefore the reset position P of the movable plate 40 can be more accurately defined.
In the electromagnetic relay 1 according to the sixth aspect of the present invention, the positioning protrusions 45 are provided on both sides in the extending direction of the rotating shaft 60, and the second members 452 of the positioning protrusions 45 have the same inclined surface 453.
According to the electromagnetic relay 1 of the sixth aspect, the positioning protrusions 45 of the movable plate 40 can be brought into contact with the position restricting wall 14 via the same inclined surface 453, and therefore the reset position P of the movable plate 40 can be more accurately defined.
In addition, by appropriately combining any of the various embodiments or modifications described above, the effects each has can be achieved. In addition, combinations of the embodiments with each other or with the examples may be made, and combinations of the features in different embodiments or examples with each other may also be made.
Industrial applicability
The electromagnetic relay of the present invention can be applied to, for example, a power conditioner.

Claims (4)

1. An electromagnetic relay is provided with:
a housing having a housing portion provided with a position restricting wall portion therein;
a pair of fixed terminals disposed in the housing portion, each having a fixed contact portion facing the position restricting wall portion, and electrically independently fixed to the housing;
a movable contact piece provided with a pair of movable contact portions which are disposed between the position restricting wall portion and the pair of fixed terminals, which face the fixed contact portions of the pair of fixed terminals, and which are respectively contactable with or separable from the facing fixed contact portions;
a movable plate connected to the movable contact piece and rotatable together with the movable contact piece in a contact/separation direction in which the pair of movable contact portions are brought into contact with or separated from the opposing fixed contact portions;
an electromagnet portion that is disposed inside the housing portion and on the opposite side of the position restricting wall portion in the contact and separation direction with respect to the pair of fixed terminals, supports the movable plate so that the movable plate is rotatable about a rotation axis extending in a direction intersecting the contact and separation direction, and rotates the movable plate forward and backward about the rotation axis in accordance with excitation and non-excitation,
the movable plate extends in the extending direction of the rotating shaft and is connected to the movable contact piece at the middle of the extending direction of the rotating shaft,
a positioning projection portion that is disposed so as to face the movable plate or the position restricting wall portion and defines a position of the movable plate, which is the farthest position from the facing fixed contact portion, of each of the pair of movable contact portions, that is, a return position of the movable plate, is provided on one end portion in the extending direction of the rotating shaft, on either the movable plate or the position restricting wall portion,
the positioning protrusion is provided on the movable plate,
the positioning protrusion has an L-shape formed by a first member protruding from the movable plate toward the position restricting wall portion in the contact and separation direction, and a second member extending from an end of the first member on a side farther from the movable plate, intersecting the contact and separation direction and an extending direction of the rotating shaft, in a direction away from the rotating shaft, and at least a part of which faces the position restricting wall portion.
2. The electromagnetic relay of claim 1 wherein,
the positioning protrusions are provided at both ends in the extending direction of the rotating shaft.
3. The electromagnetic relay of claim 1 or 2, wherein,
an inclined surface that faces the position restricting wall portion and is inclined in a direction away from the position restricting wall portion as the position restricting wall portion is moved away from the first member is provided at a distal end portion of the second member that is farther from the first member.
4. The electromagnetic relay of claim 3 wherein,
the positioning protrusions are provided on both sides of the rotation shaft in the extending direction, and the second members of the positioning protrusions have the same inclined surfaces.
CN201810743138.9A 2017-08-31 2018-07-09 Electromagnetic relay Active CN109427508B (en)

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JP2017167407A JP6806007B2 (en) 2017-08-31 2017-08-31 Electromagnetic relay

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Publication number Priority date Publication date Assignee Title
JP7310474B2 (en) * 2019-09-13 2023-07-19 オムロン株式会社 relay
CN114649164B (en) * 2022-04-15 2023-03-03 徐州乔南仪表有限公司 Armature subassembly for relay

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102543546A (en) * 2010-12-17 2012-07-04 阿尔卑斯电气株式会社 Straight-tube LED lamp switch device and straight-tube LED lamp using the same
CN203787362U (en) * 2013-02-13 2014-08-20 欧姆龙株式会社 Electromagnetic relay
CN104916499A (en) * 2014-03-14 2015-09-16 欧姆龙株式会社 Electromagnetic relay
CN106716589A (en) * 2014-12-05 2017-05-24 欧姆龙株式会社 Electromagnetic relay

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0286432A3 (en) * 1987-04-09 1990-06-06 PED Limited Relay
JP2502989Y2 (en) * 1989-11-30 1996-06-26 自動車電機工業株式会社 Electromagnetic relay
JP2004119391A (en) * 2003-11-25 2004-04-15 Jidosha Denki Kogyo Co Ltd Electromagnetic relay
JP6631068B2 (en) * 2015-07-27 2020-01-15 オムロン株式会社 Contact mechanism and electromagnetic relay using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102543546A (en) * 2010-12-17 2012-07-04 阿尔卑斯电气株式会社 Straight-tube LED lamp switch device and straight-tube LED lamp using the same
CN203787362U (en) * 2013-02-13 2014-08-20 欧姆龙株式会社 Electromagnetic relay
CN104916499A (en) * 2014-03-14 2015-09-16 欧姆龙株式会社 Electromagnetic relay
CN106716589A (en) * 2014-12-05 2017-05-24 欧姆龙株式会社 Electromagnetic relay

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JP6806007B2 (en) 2020-12-23
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