CN212411956U

CN212411956U - Contactor and spring sheet for contactor

Info

Publication number: CN212411956U
Application number: CN202021403856.0U
Authority: CN
Inventors: 夏学东; 韩旭; 田海锋; 徐敏; P.拉切尔
Original assignee: Schneider Electric Industries SAS
Current assignee: Schneider Electric Industries SAS
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-01-26
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a contactor, include: a control module configured to be capable of actuating a core link disposed therein; the breaking module comprises a moving contact, a fixed contact and a moving contact support connected with the moving contact, the moving contact support is detachably assembled with the iron core connecting piece, the moving contact support is driven by the movement of the iron core connecting piece to move, the moving contact is driven to move, the moving contact and the fixed contact are separated and combined, and an elastic sheet is arranged between the iron core connecting piece and the moving contact support to provide buffering between the iron core connecting piece and the moving contact support. The utility model also discloses a shell fragment for contactor. According to the utility model discloses a setting up of shell fragment can provide the buffering, reduces the friction between iron core connecting piece and the moving contact support to increase the life-span of contactor.

Description

Contactor and spring sheet for contactor

Technical Field

The utility model relates to a contactor still relates to a shell fragment for contactor.

Background

The contactor is an electric appliance which utilizes a coil to flow current to generate a magnetic field in industrial electricity to close a contact so as to control a load. In contactors, there are relatively easily damaged parts, such as moving contacts and stationary contacts. Because the existing contactor is designed integrally, the replacement of parts is very difficult, and the cost is very high when the whole contactor is directly replaced.

SUMMERY OF THE UTILITY MODEL

To the above problem, according to the utility model discloses an aspect provides a contactor, include: a control module configured to be capable of actuating a core link disposed therein; the breaking module comprises a moving contact, a fixed contact and a moving contact support connected with the moving contact, the moving contact support is detachably assembled with the iron core connecting piece, the moving contact support is driven by the movement of the iron core connecting piece to move, the moving contact is driven to move, the moving contact and the fixed contact are separated and combined, and an elastic sheet is arranged between the iron core connecting piece and the moving contact support to provide buffering between the iron core connecting piece and the moving contact support.

According to the utility model discloses a contactor has realized control module and has divided dismantling of disconnected module to can conveniently change disconnected module. And the setting of shell fragment can provide the buffering, reduces the friction between iron core connecting piece and the moving contact support to increase contactor's life-span.

A contactor according to the present invention may have one or more of the following features.

According to one embodiment, the movable contact support comprises a neck portion and a head portion wider than the neck portion to form a T-shaped cross section, the core link comprises a recess open to the side and configured to receive the head portion, the recess is surrounded by a top wall, a bottom wall and side walls, the bottom wall has an opening open downward and having a width smaller than a width of the head portion to allow the neck portion to extend through the opening, and a portion of the spring plate is disposed between the recess and the head portion. The arrangement of the elastic sheet can provide buffering, reduce friction between the notch and the head, and prolong the service life of the contactor.

According to one embodiment, the spring plate comprises: a first extension portion; two second extension portions positioned at both sides of the first extension portion and formed in a U-shaped section, the second extension portions including an upper arm, a lower arm, and a bridge portion connecting the upper arm and the lower arm; and a connecting portion connecting one end of the first extension portion and one end of the upper arms of the two second extension portions, wherein when the spring plate is fitted into the recess, the upper arm and the first extension portion of the second extension portion are adjacent to the top wall of the recess, the lower arm of the second extension portion is adjacent to the bottom wall of the recess, and the bridge portion of the second extension portion is adjacent to a portion of the side wall of the recess opposite to the opening direction of the recess. The elastic sheet has simple structure and low manufacturing cost, and is convenient to be arranged in the notch.

According to one embodiment, the middle portion of the first extension is formed as a curved surface protruding downward, and the curved surface of the first extension is in line contact with the head when the head is fitted into the recess. The line contact can effectively reduce friction, prolong the service life of the contactor and reduce the mechanical impact of the contactor when the contactor is switched on and switched off.

According to one embodiment, the height of the head is greater than the vertical distance between the lowest position of the curved surface of the first extension and the lower arm of the second extension, so that the curved surface of the first extension exerts a pre-stress on the head when the head is fitted into the recess. In this way, not only can the head be more stably fitted into the recess, but also the mechanical impact of the contactor at the time of opening can be reduced.

According to one embodiment, the upper surface of the lower arm of the second extension is formed as a plane. Therefore, the upper surface of the lower arm of the second extension part is in line contact with the movable contact support, friction is reduced, and the service life of the detector is prolonged.

According to one embodiment, the free end of the lower arm of the second extension has a lower arm bend extending in a downward curve to cooperate with the bottom wall of the recess, and the connecting portion has a connecting portion bend extending in an upward curve to cooperate with the top wall of the recess. Thus, after the elastic sheet is assembled in the notch, the elastic sheet cannot easily slide out of the notch.

According to the utility model discloses a second aspect provides an elastic sheet for contactor, the elastic sheet includes: a first extension portion; two second extension portions positioned at both sides of the first extension portion and formed in a U-shaped section, the second extension portions including an upper arm, a lower arm, and a bridge portion connecting the upper arm and the lower arm; and a connecting portion connecting one end of the first extension portion and one end of an upper arm of the two second extension portions. When the shell fragment setting was between the iron core connecting piece and the moving contact support of contactor, can provide the buffering between iron core connecting piece and moving contact support, reduce the friction, increase contactor's life-span.

The spring plate according to the invention may have one or more of the following features.

The middle portion of the first extension portion is formed as a curved surface protruding downward to be in line contact with a surface to be mated therewith. The line contact can effectively reduce friction, prolong the service life of the contactor and reduce the mechanical impact of the contactor when the contactor is switched on and switched off.

The free end of the lower arm of the second extension portion has a lower arm bent portion protruding in a downward bent manner, and the connecting portion has a connecting portion bent portion protruding in an upward bent manner. Thus, the spring plate can be more stably assembled into the contactor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention are limited thereto.

Fig. 1 is a schematic cross-sectional view of a portion of a contactor according to the present invention.

Fig. 2 is another schematic cross-sectional view of a portion of a contactor according to the present invention.

Fig. 3 is a perspective view of a breaking module of a contactor according to the present invention.

Fig. 4 is a perspective view of a core attachment for a contactor according to the present invention.

Fig. 5 is a perspective view of a spring plate according to the present invention.

List of reference numerals

1 spring plate

11 first extension part

12 second extension part

121 upper arm

122 lower arm

1220 lower arm bend

123 bridge part

13 connecting part

130 connecting portion bending portion

2 iron core connecting piece

20 recess

21 ceiling wall

22 bottom wall

23 side wall

3 moving contact support

Detailed Description

In order to make the technical solution of the present invention, its purpose, technical solution and advantages become clearer, the drawings of the embodiments of the present invention will be combined hereinafter, and the technical solution of the embodiments of the present invention will be clearly and completely described. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The present invention is described in detail below by way of describing example embodiments.

According to the utility model discloses a contactor can include control module and disconnected module.

The control module comprises a core link 2, the control module being configured to be able to actuate the core link 2 arranged therein. For example, control module can still include contactor coil, quiet iron core, move the iron core, and iron core connecting piece 2 is fixed to moving the iron core, when contactor coil circular telegram, moves the iron core and is driven in order to with quiet iron core actuation, drives iron core connecting piece 2 upward movement simultaneously, works as when contactor coil outage, moves the iron core and resets in order to separate with quiet iron core, takes iron core connecting piece downward movement simultaneously. It should be noted that the up-down direction and the left-right direction are defined by referring to fig. 2, and are used only for convenience of description.

The breaking module can comprise a moving contact, a fixed contact and a moving contact support 3 connected with the moving contact. The moving contact support 3 is detachably assembled with the iron core connecting piece 2, so that the moving contact support 3 is driven by the movement of the iron core connecting piece 2 to move, the moving contact is driven to move, and the moving contact and the static contact 2 are separated and combined. That is, the connection of the moving contact support 3 and the iron core connecting piece 2 transmits the motion from the control module to the breaking module, so that the function of the contactor is realized. Optionally, the contactor comprises a plurality of breaking modules, and the control module can cooperate with the plurality of breaking modules. Fig. 3 is a perspective view of a breaking module of a contactor according to the present invention. As shown in fig. 3, the movable contact support 3 includes a neck portion and a head portion wider than the neck portion to form a T-shaped cross section.

Fig. 4 is a perspective view of a core attachment for a contactor according to the present invention. As shown in fig. 4, the core coupler 2 includes a notch 20. In the example shown in fig. 4, the core connection 2 comprises 3 notches 20 configured to receive the heads of the movable contact supports of three breaking modules, respectively, that is to say, in the contactor of the present example, one control module cooperates with three breaking modules. The three recesses 20 are open to the side, for example, to the left in the view shown in fig. 2. The recess 20 is surrounded by a top wall 21, a bottom wall 22 and side walls 23, the side walls 23 being three sides between the top wall 21 and the bottom wall 22, since the recess 20 is open towards the sides. The bottom wall 22 has an opening that opens downward and has a width smaller than the width of the head of the movable contact support 3 to allow the neck of the movable contact support 3 to extend through the opening. As shown in fig. 4, the top wall 21 may be longer than the side walls 23 and the bottom wall 22.

Fig. 5 is a perspective view of the spring plate 1 according to the present invention. The elastic sheet 1 includes: a first extension 11; two second extension portions 12 located at both sides of the first extension portion 11 and formed in a U-shaped section, the second extension portions 12 including an upper arm 121, a lower arm 122, and a bridge portion 123 connecting the upper and lower arms; and a connecting portion 13 connecting one end of the first extension portion 11 and one end of the upper arm 121 of the two second extension portions 12. As shown in fig. 5, the lower arm 122 of the second extension portion 12 is shorter than the upper arm 121 of the second extension portion 12.

As shown in fig. 4, the striking plate 1 may be fitted into a recess of the core link 2. At this time, the upper arm 121, the first extension 11, and the connecting portion 13 of the second extension 12 are adjacent to the top wall 21 of the recess and in contact with the top wall 21, and the lower arm 122 of the second extension 12 is adjacent to the bottom wall 22 of the recess and in contact with the bottom wall 22. The bridge 123 of the second extension 12 is adjacent to a portion of the side wall 23 of the notch opposite to the notch opening direction. For example, the distance between the upper arm 121 and the lower arm 122 of the second extension 12 and the sum of the thicknesses of the upper arm 121 and the lower arm 122 are substantially equal to the distance between the top wall 21 and the bottom wall 22 of the recess, so that the spring 1 is adapted to fit into the recess. Therefore, the elastic sheet 1 is simple in structure and convenient to mount.

When moving contact support 3 assembles iron core connecting piece 2, according to the utility model discloses a shell fragment 1 sets up between iron core connecting piece and moving contact support. That is, when the head of the movable contact support 3 is fitted into the recess of the core link 2, a portion of the spring is disposed between the recess and the head due to the presence of the spring 1, for example, the upper surface and the lower surface of the head are in contact with the first extension 11 and the lower arm 122 of the spring 1, respectively. Therefore, the elastic sheet 1 provides buffering between the iron core connecting piece 2 and the movable contact support 3. On the other hand, when the iron core connecting piece 2 drives the moving contact support 3 to move up and down, the elastic sheet 1 can effectively reduce the friction between the iron core connecting piece and the moving contact support and prolong the service life of the iron core connecting piece 2 and the moving contact support 3. Because moving contact support 3 is thermosetting plastic, and iron core connecting piece 2 is the high thermoplastic of glass fiber content, if moving contact support 3 and iron core connecting piece 2 direct contact friction, because the increase of coefficient of friction, can greatly reduced contactor life-span.

Preferably, as shown in fig. 5, the middle portion of the first extension 11 is formed as a curved surface protruding downward. Thereby, when the head is fitted into the recess, the curved surface of the first extension 11 is in line contact with the upper surface of the head. Preferably, the height of the head is greater than the vertical distance between the lowest position of the curved surface of the first extension 11 and the lower arm of the second extension, so that when the head is fitted into the recess, the curved surface of the first extension 11 exerts a pre-stress on the head. When the iron core connecting piece 2 moves downwards to drive the moving contact support 3 to move downwards so as to disconnect the moving contact and the static contact, the top wall 21 of the notch of the iron core connecting piece 2 transmits the movement to the head of the moving iron core support 3 through the first extension part 11 of the elastic piece 1, compared with the case that the elastic piece 1 does not exist, the friction can be effectively reduced, the buffer can be provided, the mechanical impact is reduced, and the service life of the contactor is further prolonged.

The upper surface of the lower arm 122 of the second extension portion 12 is formed as a plane, and since the lower surface of the head portion of the movable contact support 3 is an arc surface, the upper surface of the lower arm 122 of the second extension portion 12 is in line contact with the lower surface of the movable contact support 3. When the iron core connecting piece 2 moves upwards to drive the movable contact support 3 to move upwards so as to connect the movable contact and the fixed contact, the bottom wall 22 of the notch of the iron core connecting piece 2 transmits the movement to the head of the movable iron core support 3 through the lower arm 122 of the second extension part 12 of the elastic sheet 1, and compared with the case that the elastic sheet 1 does not exist, the friction can be effectively reduced, and the service life of the contactor is prolonged. It is to be understood that the lower arm 122 of the second extension portion 12 may be formed as a curved surface having a middle portion protruding upward.

With continued reference to fig. 4 and 5, the free end of the lower arm 122 of the second extension 12 has a lower arm bend 1220 protruding in a downward bending manner to engage with the bottom wall of the recess, and the connecting portion 13 has a connecting portion bend 130 protruding in an upward bending manner to engage with the top wall of the recess, so that the spring 1 is not easily slid out of the recess after the spring 1 is fitted into the recess.

The exemplary embodiments of the contactor and the spring plate proposed by the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and improvements can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations of the various technical features and structures proposed by the present invention can be made without departing from the scope of the present invention.

Claims

1. A contactor, comprising:

a control module configured to be capable of actuating a core link disposed therein; and

the breaking module comprises a moving contact, a fixed contact and a moving contact support connected with the moving contact, the moving contact support is detachably assembled with the iron core connecting piece, so that the moving contact support is driven by the movement of the iron core connecting piece to move, the moving contact is driven to move, the moving contact and the fixed contact are separated and combined,

and an elastic sheet is arranged between the iron core connecting piece and the moving contact support so as to provide buffering between the iron core connecting piece and the moving contact support.

2. The contactor according to claim 1, wherein said movable contact carrier includes a neck portion and a head portion wider than said neck portion to form a T-shaped cross-section, said core link includes a recess open to a side and configured to receive said head portion, said recess being enclosed by a top wall, a bottom wall and side walls, said bottom wall having an opening open downwardly and having a width less than a width of said head portion to allow said neck portion to extend through said opening, a portion of said spring plate being disposed between said recess and said head portion.

3. The contactor according to claim 2, wherein said spring plate comprises:

a first extension portion;

two second extension portions positioned at both sides of the first extension portion and formed in a U-shaped section, the second extension portions including an upper arm, a lower arm, and a bridge portion connecting the upper arm and the lower arm; and

a connecting portion connecting one end of the first extension portion and one end of the upper arm of the two second extension portions,

wherein when the resilient piece is fitted into the recess, the upper arm and the first extension of the second extension are adjacent to the top wall of the recess, the lower arm of the second extension is adjacent to the bottom wall of the recess, and the bridge of the second extension is adjacent to a portion of the side wall of the recess opposite to the opening direction of the recess.

4. The contactor according to claim 3, wherein a middle portion of the first extension is formed as a curved surface protruding downward, and the curved surface of the first extension is in line contact with the head when the head is fitted into the recess.

5. The contactor according to claim 4, wherein the height of the head is greater than the vertical distance between the lowest position of the curved surface of the first extension and the lower arm of the second extension, such that the curved surface of the first extension exerts a pre-stress on the head when the head is fitted into the recess.

6. The contactor according to any of claims 3-5, wherein the upper surface of the lower arm of the second extension is formed as a plane.

7. A contactor according to any of claims 3-5, characterized in that the free end of the lower arm of the second extension has a lower arm bend extending downwards curved to engage with the bottom wall of the recess, and the connection has a connection bend extending upwards curved to engage with the top wall of the recess.

8. A spring plate for a contactor, the spring plate comprising:

a first extension portion;

and a connecting portion connecting one end of the first extension portion and one end of the upper arm of the two second extension portions.

9. The clip of claim 8, wherein the middle portion of the first extension is formed as a curved surface protruding downward to make line contact with a surface engaged therewith.

10. An elastic piece according to claim 7 or 8, wherein the free end of the lower arm of the second extension has a lower arm bent portion protruding in a downward curve, and the connecting portion has a connecting portion bent portion protruding in an upward curve.