A wave-shaped AC contactor moving contact assembly

Abstract

This utility model relates to a wave-shaped AC contactor moving contact assembly. The technical problem this utility model aims to solve is to provide a wave-shaped AC contactor moving contact assembly. The technical solution adopted by this utility model includes a contact plate, an active contact, and a spare moving contact. The contact plate includes a contact bridge connecting part and a contact bridge contact part. The active contact includes a main copper body and an active contact silver layer. The main copper body includes a main copper body receiving part and a main copper body connecting post. The spare moving contact includes a spare copper body and a spare moving contact silver layer. The spare copper body includes a spare copper body receiving part and a spare copper body connecting seat. The spare copper body connecting seat has a connecting seat riveting interface. The advantages of this utility model are: the dual-contact design of the active contact and the spare moving contact; when the active contact is damaged due to frequent contact, the spare moving contact can be used by flipping the contact plate, effectively improving the product's service life, increasing maintenance efficiency, and reducing replacement costs.

Description

Technical Field

[0001] This utility model relates to a wave-shaped AC contactor moving contact assembly. Background Technology

[0002] The moving contact of an AC contactor is a conductive component that is mechanically linked with the armature (moving iron core) in the AC contactor, and is usually made of silver-tungsten alloy or copper-based composite material. Existing AC contactor moving contacts consist of a contact bridge and moving contacts riveted to both ends of the contact bridge. When the silver layer on the moving contact wears excessively due to the impact of frequent switching, resulting in insufficient contact area, the entire moving contact needs to be replaced. This process is complex and has high maintenance costs. Therefore, improvements and optimizations are proposed to address this issue. Utility Model Content

[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide a wave-shaped AC contactor moving contact assembly.

[0004] The technical solution adopted by the wave-type AC contactor moving contact assembly of this utility model is characterized by comprising a contact plate, an active contact, and a spare moving contact. The contact plate includes a contact bridge connecting part and contact bridge contact parts disposed at both ends of the contact bridge connecting part. The active contact includes a main copper body and an active contact silver layer. The main copper body includes a main copper body receiving part and a main copper body connecting post that are connected to the active contact silver layer. The spare moving contact includes a spare copper body and a spare moving contact silver layer. The spare copper body includes a spare copper body receiving part that is connected to the spare moving contact silver layer and a spare copper body connecting seat that is connected to the main copper body connecting post. The device includes a connecting seat riveting interface. The bottom inner wall of the connecting seat riveting interface has a connecting seat clearance groove. The bottom outer wall of the spare copper body connecting seat has connecting seat slots spaced around an arc. The contact part of the contact bridge has a contact bridge docking hole. The main copper body connecting column passes through the contact bridge docking hole and is riveted into the connecting seat riveting interface. The back of the contact part of the contact bridge has a contact bridge rear limiting groove at the contact bridge docking hole for limiting the spare copper body connecting seat. The upper inner wall of the contact bridge rear limiting groove has contact bridge locking protrusions spaced around an arc for locking into the connecting seat slots.

[0005] The bottom of the main copper body receiving part is provided with a main copper body anti-rotation protrusion, and the main copper body connecting post is provided on the main copper body anti-rotation protrusion. The front of the contact part of the contact bridge is provided with a contact part positioning groove corresponding to the main copper body anti-rotation protrusion. The main copper body anti-rotation protrusion has a square structure.

[0006] The end of the main copper body connecting column is provided with a connecting column guide slope, and the end of the spare copper body connecting seat is provided with a connecting seat guide slope.

[0007] The center of the contact bridge connection part is provided with a contact bridge mounting seat arranged symmetrically on the upper and lower sides. The contact bridge mounting seat is provided with a contact bridge threaded hole. The front and rear ends of the contact bridge connection part are provided with contact bridge limiting recesses.

[0008] The thickness of the main copper body receiving part is the same as the thickness of the spare copper body receiving part, and the thickness of the active contact silver layer is the same as the thickness of the spare active contact silver layer.

[0009] The advantages of this wave-shaped AC contactor moving contact assembly are as follows: the dual-contact design of the active contact and the backup moving contact allows the backup moving contact to be used when the active contact is damaged due to frequent contact. This effectively improves the product's service life and eliminates the need for complete disassembly during maintenance, resulting in higher maintenance efficiency and lower replacement costs. The active contact, backup moving contact, and contact plate are connected by both riveting and snap-fit ​​methods, ensuring a tight and reliable connection. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0011] Figure 1 This utility model relates to a wave-shaped AC contactor moving contact assembly;

[0012] Figure 2 This is a schematic diagram of the back structure of the active contact of this utility model;

[0013] Figure 3 This is a schematic diagram of the back structure of the spare moving contact of this utility model;

[0014] Figure 4 This is a schematic diagram of the front structure of the touch plate of this utility model;

[0015] Figure 5 This is a schematic diagram of the back structure of the touch plate of this utility model. Detailed Implementation

[0016] like Figure 1-5As shown, the wave-shaped AC contactor moving contact assembly of this utility model includes a contact plate 1, an active contact 2, and a spare moving contact 3. The contact plate 1 includes a contact bridge connecting part 20 and contact bridge contact parts 21 disposed at both ends of the contact bridge connecting part 20. The active contact 2 includes a main copper body 5 and an active contact silver layer 6. The main copper body 5 includes a main copper body receiving part 7 and a main copper body connecting post 8 that are connected to the active contact silver layer 6. The spare moving contact 3 includes a spare copper body 10 and a spare moving contact silver layer 11. The spare copper body 10 includes a spare copper body receiving part 14 that is connected to the spare moving contact silver layer 11 and a spare copper body connecting seat 13 that is connected to the main copper body connecting post 8. The spare copper body connector 13 is provided with a connector riveting interface 15. The bottom inner wall of the connector riveting interface 15 is provided with a connector clearance groove 16. The bottom outer wall of the spare copper body connector 13 is provided with connector bayonets 17 at intervals around the arc. The contact bridge contact part 21 is provided with a contact bridge docking hole 22. The main copper body connecting post 8 passes through the contact bridge docking hole 22 and is riveted into the connector riveting interface 15. The back of the contact bridge contact part 21 is provided with a contact bridge rear limiting groove 23 for limiting the spare copper body connector 13 at the contact bridge docking hole 22. The upper inner wall of the contact bridge rear limiting groove 23 is provided with contact bridge locking protrusions 24 at intervals around the arc for locking into the connector bayonets 17. The dual-contact design of active contact 2 and backup active contact 3 allows the backup active contact 3 to be used when active contact 2 is damaged due to frequent contact. This effectively improves the product's service life and eliminates the need for complete disassembly during maintenance, resulting in higher maintenance efficiency and lower replacement costs. Active contact 2, backup active contact 3, and contact plate 1 are connected by both riveting and snap-fit ​​methods, ensuring a tight and reliable connection.

[0017] The bottom of the main copper body receiving part 7 is provided with a main copper body anti-rotation protrusion 26, and the main copper body connecting post 8 is provided on the main copper body anti-rotation protrusion 26. The front of the contact bridge contact part 21 is provided with a contact part positioning groove 27 corresponding to the main copper body anti-rotation protrusion 26. The main copper body anti-rotation protrusion 26 has a square structure, which effectively prevents the displacement of the active contact 2 after riveting, and further improves the tightness and reliability of the connection.

[0018] The main copper body connecting post 8 has a connecting post guide slope 29 at its end, which facilitates the riveting of the main copper body connecting post 8 and the connecting seat riveting interface 15. The spare copper body connecting seat 13 has a connecting seat guide slope 30 at its end, which facilitates snap-fitting.

[0019] The center of the contact bridge connection part 20 is provided with a contact bridge mounting base 31 symmetrically arranged above and below. The contact bridge mounting base 31 is provided with a contact bridge threaded hole 32. The front and rear ends of the contact bridge connection part 20 are provided with contact bridge limiting recesses 33. They are symmetrically arranged, can be flipped for use, and are convenient and quick to maintain.

[0020] The thickness of the main copper body receiving part 7 is the same as the thickness of the spare copper body receiving part 14, and the thickness of the active contact silver layer 6 is the same as the thickness of the spare active contact silver layer 11, and their dimensions are identical.

[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A wave-type AC contactor movable contact assembly, characterized by: The system includes a contact plate (1), an active contact (2), and a spare active contact (3). The contact plate (1) includes a contact bridge connection (20) and contact bridge contact portions (21) at both ends of the contact bridge connection (20). The active contact (2) includes a main copper body (5) and an active contact silver layer (6). The main copper body (5) includes a main copper body receiving portion (7) that connects to the active contact silver layer (6) and a main copper body connecting post (8). The spare active contact (3) includes a spare copper body (10) and a spare active contact silver layer (11). The spare copper body (10) includes a spare copper body receiving portion (14) that connects to the spare active contact silver layer (11) and a spare copper body connecting seat (13) that connects to the main copper body connecting post (8). 13) The inner wall of the connecting seat riveting interface (15) is provided with a connecting seat relief groove (16). The outer wall of the bottom of the spare copper body connecting seat (13) is provided with a connecting seat bayonet (17) at intervals around the arc. The contact part (21) of the contact bridge is provided with a contact bridge docking hole (22). The main copper body connecting column (8) passes through the contact bridge docking hole (22) and is riveted into the connecting seat riveting interface (15). The back of the contact part (21) of the contact bridge is provided with a contact bridge rear limiting groove (23) for limiting the spare copper body connecting seat (13) at the contact bridge docking hole (22). The upper inner wall of the contact bridge rear limiting groove (23) is provided with a contact bridge locking protrusion (24) at intervals around the arc for locking into the connecting seat bayonet (17).

2. The wave AC contactor movable contact assembly of claim 1, wherein: The bottom of the main copper body receiving part (7) is provided with a main copper body anti-rotation protrusion (26), and the main copper body connecting post (8) is provided on the main copper body anti-rotation protrusion (26). The front of the contact bridge contact part (21) is provided with a contact part positioning groove (27) corresponding to the main copper body anti-rotation protrusion (26). The main copper body anti-rotation protrusion (26) has a square structure.

3. The wave AC contactor movable contact assembly of claim 1, wherein: The main copper body connecting column (8) is provided with a connecting column guide slope (29) at its end, and the spare copper body connecting seat (13) is provided with a connecting seat guide slope (30) at its end.

4. The wave AC contactor movable contact assembly of claim 1, wherein: The touch bridge connecting part (20) has a touch bridge mounting seat (31) arranged symmetrically at the top and bottom. The touch bridge mounting seat (31) has a touch bridge threaded hole (32). The front and rear ends of the touch bridge connecting part (20) have touch bridge limiting recesses (33).

5. The wave-shaped AC contactor moving contact assembly according to claim 1, characterized in that: The thickness of the main copper body receiving part (7) is the same as the thickness of the spare copper body receiving part (14), and the thickness of the active contact silver layer (6) is the same as the thickness of the spare active contact silver layer (11).

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