Circuit breaker with stable wiring

By designing a combined structure of compression bolts, arc-shaped press plates and arc-shaped copper sheets on the circuit breaker, the problem of electrical connections not tight when the multi-strand core strands are in contact is solved, and the firm docking and stability of the cable is achieved, avoiding the Electric sparks and burning at the connection.

CN222300600UActive Publication Date: 2025-01-03SHANGHAI BAOLIN EXPLOSION-PROOF ELECTRIC CO LTD
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Patent Information

Application Number
CN202421142016.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-23
Publication Date
2025-01-03
Estimated Expiration
2034-05-23

AI Technical Summary

Technical Problem

When existing circuit breakers come into contact with multi-stranded core strands, when the compression bolt drives the contact piece to tighten the end of the wire, the multi-stranded core strands are prone to explode, resulting in a poor electrical connection, affecting current transmission and may generate electricity. Sparks burn.

Method used

The four recesses on the top of the circuit breaker are provided with compression bolts, and the bottom of the bolts are rotatably connected to the arc-shaped press plate. The inner side of the arc-shaped press plate is equipped with an arc-shaped copper sheet. The cable end is bent through the contact between the arc-shaped copper sheet and the arc-shaped groove. Wrap it in a curved copper sheet and pass the semicircular opening to ensure the cable is firmly connected.

Benefits of technology

It realizes a firm connection between the cable and the circuit breaker, prevents the arc-shaped copper sheet from falling off, enhances the stability of the electrical connection, and avoids electric sparks and burning of the connection parts.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222300600U_ABST
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Abstract

The utility model provides a circuit breaker with stable wiring, and relates to the technical field of circuit breakers, the circuit breaker comprises a circuit breaker body, the top of the circuit breaker body is provided with notches close to four corners, two sides of the circuit breaker body are provided with two docking ports, and the plurality of docking ports are located below the notches. The bottom of the compression bolt extends into the butt joint port, the bottom of the compression bolt is rotationally connected with the arc-shaped pressing plate, and the arc-shaped red copper sheet is arranged on the inner side of the arc-shaped pressing plate, so that when one end of the cable extends into the butt joint port, the compression bolt is rotated to drive the arc-shaped pressing plate to press downwards; in the downward pressing process, when two sides of the bottom of the arc-shaped red copper sheet are in contact with the arc surface of the inner bottom surface of the arc-shaped groove, two sides of the bottom of the arc-shaped red copper sheet are bent towards the middle part under the guidance of the arc surface, so that the butt joint end of the cable is wrapped in the arc-shaped red copper sheet, and meanwhile, the outer surface of the cable is clamped in the semicircular opening.
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Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker with stable wiring. Background Art

[0002] A circuit breaker is a device that ensures line safety. It protects the line by breaking the circuit when a short circuit or overload occurs to avoid more serious consequences. The setting of the circuit breaker is crucial to the circuit layout.

[0003] When an existing relay is connected to an external wire, since the wire mostly uses multi-strand twisted wires, when the end of the wire is connected to the relay, it is usually necessary for the clamping bolt on the relay to drive the contact piece to clamp the end of the wire. However, since the end of the wire is multi-strand twisted wire, the multi-strand twisted wire that was originally twisted together will explode to both sides during the compression, resulting in a loose connection at the electrical connection part, which affects the current transmission and is likely to generate electric sparks and burn the electrical connection part. Utility Model Content

[0004] In order to solve the existing technical problems, the utility model provides a circuit breaker with stable wiring. In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] A circuit breaker with stable wiring comprises a circuit breaker body, wherein notches are provided at the top of the circuit breaker body near four corners, two docking ports are provided on both sides of the circuit breaker body, a plurality of the docking ports are located below the notches, arc grooves are provided on the inner bottom surfaces of the plurality of docking ports, clamping bolts are provided inside the plurality of notches, the bottoms of the plurality of clamping bolts penetrate into the interior of the docking ports, and the bottoms of the plurality of clamping bolts are rotatably connected with arc pressure plates.

[0006] Optionally, the plurality of arc-shaped pressure plates are correspondingly located inside the docking port, and outer surfaces on both sides of the arc-shaped pressure plates are correspondingly slidably fitted with inner walls on both sides of the docking port.

[0007] Optionally, an arc-shaped copper sheet is disposed on the inner side of each of the plurality of arc-shaped pressure plates, and a strip-shaped protrusion is disposed on the inner wall of each of the plurality of arc-shaped copper sheets.

[0008] Optionally, a plurality of the inner bottom surfaces of the docking ports are provided with semicircular openings near the front edges that penetrate to the outside of the circuit breaker body, and the plurality of the semicircular openings extend to the inside of the arc-shaped groove.

[0009] Optionally, a cable is disposed inside each of the plurality of docking ports, and one end of the cable is engaged between the bottom of the arc-shaped copper sheet and the arc-shaped groove.

[0010] Optionally, a shift block is provided at the top of the circuit breaker body, and a bayonet is provided at the bottom of the circuit breaker body.

[0011] Optionally, side openings are provided at the top of the circuit breaker body near the edges on both sides, and positioning bolts are provided on the inner bottom surfaces of the two side openings.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0013] 1. In the utility model, when using the device, the bottom of the clamping bolt is extended to the inside of the docking port, and the arc-shaped pressure plate is rotated and connected at the bottom of the clamping bolt, and an arc-shaped copper sheet is arranged on the inner side of the arc-shaped pressure plate, so that when one end of the cable is extended to the inside of the docking port, the arc-shaped pressure plate is pressed downward by rotating the clamping bolt. During the pressing process, when the bottom two sides of the arc-shaped copper sheet contact the arc surface of the bottom surface of the arc groove, the bottom two sides of the arc-shaped copper sheet are bent toward the middle part under the guidance of the arc surface, thereby wrapping the cable docking end inside the arc-shaped copper sheet, and the outer surface of the cable is clamped inside the semicircular opening.

[0014] 2. In the utility model, when the two sides of the bottom of the arc-shaped copper sheet are bent to wrap the cable, the bent part of the arc-shaped copper sheet is located inside the arc-shaped groove. At the same time, since the radius of the semicircular mouth is smaller than the radius of the arc-shaped groove, the arc-shaped copper sheet can be limited inside the arc-shaped groove to prevent the arc-shaped copper sheet from falling off from the inside of the docking port, making the docking joint more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0016] Figure 1 A schematic diagram of a side-view stereoscopic structure of a circuit breaker with stable wiring is provided for the utility model;

[0017] Figure 2 The utility model provides a schematic diagram of the main stereoscopic structure of a circuit breaker with stable wiring;

[0018] Figure 3 A partial cross-sectional three-dimensional structural schematic diagram of a circuit breaker with stable wiring is proposed for the utility model;

[0019] Figure 4 For this utility model Figure 3 Magnified view at A in the middle.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Circuit breaker body; 2. Bayonet; 3. Dial block; 4. Notch; 5. Clamping bolt; 6. Docking port; 7. Cable; 8. Semicircular opening; 9. Side opening; 10. Positioning bolt; 11. Arc groove; 12. Arc pressure plate; 13. Arc copper sheet; 14. Strip protrusion.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] The utility model will now be further described in detail with reference to the accompanying drawings.

[0024] Embodiment 1, as Figure 1-4 As shown, the utility model provides a technical solution for a circuit breaker with stable wiring: it includes a circuit breaker body 1, and recesses 4 are provided at the top of the circuit breaker body 1 near the four corners, two docking ports 6 are provided on both sides of the circuit breaker body 1, and multiple docking ports 6 are located below the recesses 4, and arc grooves 11 are provided on the inner bottom surfaces of the multiple docking ports 6, and clamping bolts 5 are provided inside the multiple recesses 4, and the bottoms of the multiple clamping bolts 5 penetrate into the inside of the docking ports 6, and the bottoms of the multiple clamping bolts 5 are rotatably connected with arc pressure plates 12.

[0025] The effect achieved by the entire embodiment 1 is that when using the present device, the bottom of the clamping bolt 5 is extended to the inside of the docking port 6, and the arc-shaped pressure plate 12 is rotated and connected at the bottom of the clamping bolt 5, and an arc-shaped copper sheet 13 is arranged on the inner side of the arc-shaped pressure plate 12, so that when one end of the cable 7 can be extended to the inside of the docking port 6, the arc-shaped pressure plate 12 is pressed downward by rotating the clamping bolt 5. During the pressing process, when the bottom sides of the arc-shaped copper sheet 13 contact the arc surface of the bottom surface of the arc groove 11, the bottom sides of the arc-shaped copper sheet 13 are bent toward the middle part under the guidance of the arc surface, thereby wrapping the docking end of the cable 7 inside the arc-shaped copper sheet 13, and at the same time, the outer surface of the cable 7 is clamped inside the semicircular opening 8.

[0026] Embodiment 2, as Figure 1-4As shown, multiple arc-shaped pressure plates 12 are correspondingly located inside the docking port 6, and the outer surfaces on both sides of the arc-shaped pressure plates 12 are correspondingly slidably fitted with the inner walls on both sides of the docking port 6, the inner sides of the multiple arc-shaped pressure plates 12 are provided with arc-shaped copper sheets 13, the inner walls of the multiple arc-shaped copper sheets 13 are provided with strip-shaped protrusions 14, the inner bottom surfaces of the multiple docking ports 6 are provided with semicircular openings 8 that penetrate to the outside of the circuit breaker body 1 near the front edge, and the multiple semicircular openings 8 extend to the inside of the arc-shaped groove 11, and the interiors of the multiple docking ports 6 are provided with cables 7, one end of the cable 7 is engaged between the bottom of the arc-shaped copper sheet 13 and the arc-shaped groove 11, a shift block 3 is provided on the top of the circuit breaker body 1, a bayonet 2 is provided on the bottom of the circuit breaker body 1, side openings 9 are provided on the top of the circuit breaker body 1 near the edges on both sides, and positioning bolts 10 are provided on the inner bottom surfaces of the two side openings 9.

[0027] The effect achieved by the entire embodiment 2 is that when the two sides of the bottom of the arc-shaped copper sheet 13 are bent to wrap the cable 7, the bent part of the arc-shaped copper sheet 13 is located inside the arc-shaped groove 11. At the same time, since the radius of the semicircular opening 8 is smaller than the radius of the arc-shaped groove 11, the arc-shaped copper sheet 13 can be limited inside the arc-shaped groove 11 to prevent the arc-shaped copper sheet 13 from falling off from the inside of the docking port 6, making the docking point more secure.

[0028] Working principle: When using the device, the bottom of the clamping bolt 5 is extended to the inside of the docking port 6, and the arc-shaped pressing plate 12 is connected to the bottom of the clamping bolt 5 by rotation. At the same time, an arc-shaped copper sheet 13 is arranged inside the arc-shaped pressing plate 12, so that when one end of the cable 7 is extended to the inside of the docking port 6, the arc-shaped pressing plate 12 is pressed downward by rotating the clamping bolt 5. During the pressing process, when the bottom sides of the arc-shaped copper sheet 13 contact the arc surface of the bottom surface of the arc groove 11, the bottom of the arc-shaped copper sheet 13 is guided by the arc surface. The two sides of the arc-shaped copper sheet 13 are bent toward the middle part, and then the butt end of the cable 7 is wrapped inside the arc-shaped copper sheet 13, and the outer surface of the cable 7 is clamped inside the semicircular opening 8. When the two sides of the bottom of the arc-shaped copper sheet 13 are bent to wrap the cable 7, the bent part of the arc-shaped copper sheet 13 is located inside the arc-shaped groove 11. At the same time, since the radius of the semicircular opening 8 is smaller than the radius of the arc-shaped groove 11, the arc-shaped copper sheet 13 can be limited inside the arc-shaped groove 11 to prevent the arc-shaped copper sheet 13 from falling off from the inside of the docking port 6, making the docking more secure.

[0029] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A circuit breaker with stable wiring, comprising a circuit breaker body (1), characterized in that: The top of the circuit breaker body (1) is provided with recesses (4) near the four corners, and two docking ports (6) are provided on both sides of the circuit breaker body (1). A plurality of the docking ports (6) are located below the recesses (4), and an arc-shaped groove (11) is provided on the inner bottom surface of the plurality of the docking ports (6). A clamping bolt (5) is provided inside the plurality of the recesses (4), and the bottom of the plurality of the clamping bolts (5) penetrates into the interior of the docking port (6), and the bottom of the plurality of the clamping bolts (5) is rotatably connected to an arc-shaped pressure plate (12).

2. A circuit breaker with stable connection according to claim 1, characterized in that: The plurality of arc-shaped pressure plates (12) are correspondingly located inside the docking port (6), and the outer surfaces on both sides of the arc-shaped pressure plates (12) are correspondingly slidably fitted with the inner walls on both sides of the docking port (6).

3. A circuit breaker with stable connection according to claim 2, characterized in that: The inner sides of the plurality of arc-shaped pressure plates (12) are all provided with arc-shaped copper sheets (13), and the inner walls of the plurality of arc-shaped copper sheets (13) are all provided with strip-shaped protrusions (14).

4. A circuit breaker with stable connection according to claim 3, characterized in that: A semicircular opening (8) penetrating to the outside of the circuit breaker body (1) is provided on the inner bottom surface of the plurality of docking ports (6) near the front edge, and the plurality of semicircular openings (8) extend to the inside of the arc-shaped groove (11).

5. A circuit breaker with stable connection according to claim 4, characterized in that: A cable (7) is arranged inside each of the plurality of docking ports (6), and one end of the cable (7) is clamped between the bottom of the arc-shaped copper sheet (13) and the arc-shaped groove (11).

6. A circuit breaker with stable connection according to claim 1, characterized in that: A shift block (3) is provided on the top of the circuit breaker body (1), and a bayonet (2) is provided on the bottom of the circuit breaker body (1).

7. A circuit breaker with stable connection according to claim 1, characterized in that: Side openings (9) are provided at the top of the circuit breaker body (1) near the edges on both sides, and positioning bolts (10) are provided on the inner bottom surfaces of the two side openings (9).