A movable contact provided with double contacts

Abstract

A kind of movable contact with double contact. It solves the problem of existing movable contact with double contact, which is troublesome to process and has low reliability. It comprises: a contact body, the contact body is provided in a sheet shape; a first contact is provided on the contact body; a first contact point is protruding from the first contact; a second contact is connected to the contact body and / or the first contact; the contact body and / or the first contact is folded outward to form the second contact; a second contact point is provided on the second contact; the second contact point is protruding from the second contact and is provided on the two sides of the contact body respectively. The utility model has the beneficial effects that the first contact and the outwardly folded second contact are provided, the first contact point and the second contact point are respectively provided on the first contact and the second contact, which increases the area of the movable contact, improves the heat dissipation performance of the product, and the product has stable performance and long service life.

Description

Technical Field

[0001] This utility model relates to a movable contact piece, specifically a movable contact piece with two contact points. Background Technology

[0002] In push-button switches, conduction is typically achieved by pressing a button to move a moving contact to contact a stationary contact. To enhance conductivity, the moving contact has a silver dot. Existing double-pole switches typically employ a double-sided silver dot structure, as illustrated in Chinese Patent Publication No. CN210628117U, published on May 26, 2020, entitled "...". A patent for "A Novel Double-Sided Silver Dot Structure for Moving Contacts" discloses a novel double-sided silver dot structure for moving contacts. The silver dot body consists of a large end and a small end. The large end is formed by extruding a large end copper layer and a large end silver alloy layer. The contact surface between the large end copper layer and the large end silver alloy layer forms a concave arc surface towards the large end copper layer. The small end is formed by extruding a small end copper layer and a small end silver alloy layer. The contact surface between the small end copper layer and the small end silver alloy layer forms a concave arc surface towards the small end copper layer. The large end copper layer and the small end copper layer are an integral structure. The surface of the small end silver alloy layer forms a planar assembly surface. A demolding angle of less than 90 degrees is formed on the outer wall of the large end. In actual production, double-sided silver application of this type of switch is difficult, resulting in high production costs. This makes the contact itself difficult to process, and the assembly of the two silver contacts with the moving contact is also difficult. Furthermore, the poor heat dissipation leads to a short product lifespan. In addition, Chinese Patent Publication No. CN 214428531 U, published on October 19, 2021, entitled "A moving contact piece with double-sided contacts and a switching device having the same", adopts a similar staggered double contact setting. Although this type of double contact is relatively simple to process, the silver dots are staggered, which will cause the moving contact piece to move inconsistently from left to right, resulting in performance differences, reduced product reliability, and a worse pressing feel for the user during use. Utility Model Content

[0003] To address the problems of cumbersome processing and low reliability of existing moving contact pieces with double-sided contacts in the background art, this utility model provides a moving contact piece with double contacts.

[0004] The technical solution of this utility model is: a movable contact piece with two contact points, comprising: The contact body is arranged in a sheet shape; The first contact piece is disposed on the contact piece body; The first contact point is set to protrude from the first contact piece; The second contact piece is connected to the contact piece body and / or the first contact piece; the contact piece body and / or the first contact piece are folded outwards to extend the second contact piece. The second contact is located on the second contact piece; the second contact protrudes from the second contact piece and is located on both sides of the contact piece body, respectively, as does the first contact.

[0005] As a further improvement of this utility model, the second contact point and the first contact point are located at the same horizontal height, and the second contact piece and the first contact piece are provided with a gap at the second contact point and the first contact point.

[0006] As a further improvement of this utility model, the end of the second contact away from the second contact piece and the end of the first contact away from the first contact piece are symmetrically arranged about the contact piece body.

[0007] As a further improvement of this utility model, the first contact piece is provided with a first mounting part for mounting the first contact point and a first connecting part connected to the contact piece body. The first mounting part is connected to the first connecting part through a first bending part and is set off from the sheet-shaped contact piece body.

[0008] As a further improvement of this utility model, the second contact piece is folded outward from the contact body and / or the first contact piece, and the second contact piece is provided with a second mounting part for mounting the second contact point, and a gap is provided between the second mounting part and the first mounting part; the second contact piece is provided with a second connecting part, and the second connecting part is connected to the contact body and / or the first contact piece through a bending part.

[0009] As a further improvement of this utility model, the second connecting part is attached to the first connecting part and / or the contact body, and the second contact point and the first contact point are symmetrically arranged about the swing center of the contact body.

[0010] As a further improvement of this utility model, the first contact and the second contact are both silver-plated copper contacts, and the ends of the first contact and / or the second contact are arranged in an arc shape. The first contact and the second contact are fixed to the first contact piece and the second contact piece respectively by riveting.

[0011] As a further improvement of this utility model, it also includes a swinging part, which is disposed on the contact body and is used to provide swing support; the swinging part is arranged in a triangular shape in cross section.

[0012] As a further improvement of this utility model, the contact body, the first contact, and the second contact are an integral structure.

[0013] As a further improvement to this utility model, it also includes: The mounting block is located on the contact body and is used to cooperate with the elastic element to facilitate the installation of the elastic element. The end of the mounting block is arc-shaped. A paddle, located on the contact plate body, is used to facilitate the movement of the lever. The end of the paddle has a clearance bevel.

[0014] The beneficial effects of this utility model are that by setting a first contact piece and an outwardly folded second contact piece, and by setting a first contact point and a second contact point on the first and second contact pieces respectively, the area of ​​the moving contact piece is increased, thereby improving the heat dissipation performance of the product, resulting in stable product performance and a long service life. This utility model also has the advantages of simple structure, convenient assembly, reliable operation, and long service life. Attached Figure Description

[0015] Appendix Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Appendix Figure 2 This is a schematic diagram of the structure from another perspective of an embodiment of the present invention.

[0017] Appendix Figure 3 This is a schematic diagram of the structure from another perspective of an embodiment of the present invention.

[0018] In the figure, 1 is the contact body; 2 is the first contact piece; 21 is the first mounting part; 22 is the first connecting part; 23 is the first bending part; 3 is the first contact point; 4 is the second contact piece; 41 is the second mounting part; 42 is the second connecting part; 43 is the bending part; 5 is the second contact point; 6 is the gap; 7 is the swinging part; 8 is the mounting block; 9 is the lever; and 91 is the clearance slope. Detailed Implementation

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings: Depend on Figure 1 Combination Figure 2-3 As shown, a movable contact piece with two contacts includes: The contact body 1 is arranged in a sheet shape; The first contact piece 2 is disposed on the contact piece body 1; The first contact point 3 protrudes from the first contact piece 2; The second contact piece 4 is connected to the contact piece body 1 and / or the first contact piece 2; the contact piece body 1 and / or the first contact piece 2 are folded outward to extend the second contact piece 4. The second contact 5 is disposed on the second contact piece 4; the second contact 5 protrudes from the second contact piece 4 and is disposed on both sides of the contact piece body 1, respectively, along with the first contact 3. The beneficial effects of this utility model are that by providing a first contact piece and an outwardly folded second contact piece, with the first and second contact pieces respectively provided with the first and second contact points, the area of ​​the moving contact piece is increased, thereby improving the heat dissipation performance of the product, resulting in stable product performance and a long service life. This utility model also has the advantages of simple structure, convenient assembly, reliable operation, and long service life.

[0020] The second contact 5 and the first contact 3 are located at the same horizontal level, and the second contact piece 4 and the first contact piece 2 are separated by a gap 6 at the second contact 5 and the first contact 3. The two contacts of this invention are at the same height and symmetrically arranged, resulting in even force distribution during swinging, better feel, reliable operation, and more stable product performance. Of course, the two contacts can also be on different horizontal planes.

[0021] The end of the second contact 5 furthest from the second contact piece 4 and the end of the first contact 3 furthest from the first contact piece 2 are symmetrically arranged about the contact piece body 1. This symmetrical arrangement of the two contacts facilitates product processing, ensures stable product performance, and provides a better feel during operation.

[0022] The first contact piece 2 is provided with a first mounting portion 21 for mounting the first contact point 3 and a first connecting portion 22 connected to the contact piece body 1. The first mounting portion 21 is connected to the first connecting portion 22 through a first bending portion 23, and the first mounting portion 21 is offset from the sheet-like contact piece body 1. In this way, after bending on the first contact piece, the first contact point protrudes from the swing center of the contact piece body, thereby making the first contact point and the second contact point swing symmetrically, the contact piece is subjected to balanced force, and the product performance is more stable.

[0023] The second contact piece 4 is provided with a second mounting portion 41 for mounting the second contact 5, and a gap 6 is provided between the second mounting portion 41 and the first mounting portion 21. Specifically, the second contact piece 4 is provided with a second connecting portion 42, which is connected to the contact piece body 1 and / or the first contact piece 2 through a bending portion 43. This makes the structure of the first and second contact pieces simple, the connection convenient, and the product processing easy.

[0024] The second connecting part 42 is attached to the first connecting part 22 and / or the contact body 1, and the second contact 5 and the first contact 3 are symmetrically arranged about the swing center of the contact body 1. Specifically, the first contact 3 and the second contact 5 are both silver-plated copper contacts, and the ends of the first contact 3 and / or the second contact 5 are arc-shaped. The first contact 3 and the second contact 5 are fixed to the first contact 2 and the second contact 4 respectively by riveting. Specifically, the contact body 1, the first contact 2, and the second contact 4 are an integral structure. This structure reduces production costs and is simple. In this utility model, the first contact can be riveted to the first mounting part first, and then the second contact can be riveted to the second mounting part. The contacts can use existing silver contacts, reducing production and processing costs. After riveting, the second contact is formed by bending. At this time, the second contact is connected to the first contact and / or the contact body through the bending part. After bending, the second connecting part fits into the first connecting part, and the symmetry between the second contact and the first contact can be achieved through the first bending part. This makes the product easy to process and simple in structure. A gap is formed between the back of the first mounting part and the back of the second mounting part.

[0025] This invention also includes a swinging part 7, disposed on the contact body 1, for providing swing support; the swinging part 7 is triangular in cross-section. This structure facilitates the swinging of the contact body, is simple in structure, and is convenient for switch operation.

[0026] This utility model also includes: Mounting block 8 is disposed on the contact body 1 and is used to cooperate with the elastic element to facilitate the installation of the elastic element. The end of the mounting block 8 is arc-shaped. A lever 9, located on the contact body 1, facilitates the movement of the rocker arm. The end of the lever 9 has a clearance slope 91. Typically, the elastic element of the rocker arm is sleeved outside the mounting block. The lever facilitates or assists the rocker arm in driving the contact body to swing. The clearance slope prevents interference with the rocker arm during operation, thus avoiding impact on product performance.

[0027] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the inventive concept will be included within the scope of protection of this patent.

Claims

1. A movable contact piece with two contacts, characterized in that, include: The contact body (1) is in the form of a sheet; The first contact piece (2) is disposed on the contact piece body (1); The first contact point (3) protrudes from the first contact piece (2); The second contact piece (4) is connected to the contact piece body (1) and / or the first contact piece (2); the contact piece body (1) and / or the first contact piece (2) are folded outward to form the second contact piece (4). The second contact (5) is located on the second contact piece (4); the second contact (5) protrudes from the second contact piece (4) and is located on both sides of the contact piece body (1) along with the first contact (3).

2. A movable contact piece with dual contacts according to claim 1, characterized in that... The second contact (5) and the first contact (3) are located at the same horizontal level, and the second contact piece (4) and the first contact piece (2) are provided with a gap (6) at the second contact (5) and the first contact (3).

3. A movable contact piece with dual contacts according to claim 1, characterized in that... The end of the second contact (5) away from the second contact piece (4) and the end of the first contact (3) away from the first contact piece (2) are symmetrically arranged about the contact piece body (1).

4. A movable contact piece with dual contacts according to claim 1, characterized in that... The first contact piece (2) is provided with a first mounting part (21) for mounting the first contact point (3) and a first connecting part (22) connected to the contact piece body (1). The first mounting part (21) is connected to the first connecting part (22) through a first bending part (23) and the first mounting part (21) is offset from the sheet-shaped contact piece body (1).

5. A movable contact piece with dual contacts according to claim 3, characterized in that... The second contact piece (4) is provided with a second mounting part (41) for mounting the second contact (5), and a gap (6) is provided between the second mounting part (41) and the first mounting part (21); the second contact piece (4) is provided with a second connecting part (42), and the second connecting part (42) is connected to the contact piece body (1) and / or the first contact piece (2) through a bending part (43).

6. A movable contact piece with dual contacts according to claim 5, characterized in that... The second connecting part (42) is attached to the first connecting part (22) and / or the contact body (1), and the second contact (5) and the first contact (3) are symmetrically arranged about the swing center of the contact body (1).

7. A movable contact piece with dual contacts according to claim 1, characterized in that... The first contact (3) and the second contact (5) are both copper-plated silver contacts. The ends of the first contact (3) and / or the second contact (5) are arranged in an arc shape. The first contact (3) and the second contact (5) are fixed to the first contact piece (2) and the second contact piece (4) respectively by riveting.

8. A movable contact piece with dual contacts according to claim 1, characterized in that... It also includes a swing part (7), which is provided on the contact body (1) to provide swing support; the swing part (7) is triangular in cross section.

9. A movable contact piece with dual contacts according to claim 1, characterized in that... The contact body (1), the first contact (2), and the second contact (4) are an integral structure.

10. A movable contact piece with dual contacts according to claim 1, characterized in that... Also includes: Mounting block (8) is provided on the contact body (1) for cooperating with the elastic element to facilitate the installation of the elastic element. The end of the mounting block (8) is arc-shaped. A paddle (9) is provided on the contact body (1) to facilitate the paddle lever. The end of the paddle (9) is provided with a relief slope (91).

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