Primary and secondary fusion complete pole-mounted circuit breaker convenient for wiring

Abstract

The utility model discloses a primary and secondary fusion complete pole-mounted circuit breaker convenient for wiring, relates to the technical field of circuit breakers, and aims to solve the technical problems that the wiring mode is troublesome and the dangerousness is high, the circuit breaker comprises a circuit breaker main body, a wiring part is arranged on the circuit breaker main body, and an electric connection part of the wiring part is provided with an arc protection cover. An electrified conduction ring is arranged in the arc protection cover, a bunching sleeve is mounted in the center of the arc protection cover, a plurality of side pressing notches are formed in the bunching sleeve, a synchronous ring body is arranged on the periphery of the bunching sleeve, a plurality of pressing-through structures are mounted on the synchronous ring body, disconnection metal sheets are arranged at the ends of the pressing-through structures, and the disconnection metal sheets are made of elastic metal materials. The disconnection metal sheet is of a bent track structure. Compared with a traditional one-by-one bolt screwing mode, operation is simplified and convenient, operation and maintenance personnel do not need to make direct contact with electrified parts, electric shock accidents caused by misoperation are eradicated fundamentally, and safety is high.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and more specifically, to a primary and secondary integrated pole-mounted circuit breaker that is easy to wire. Background Technology

[0002] Traditional pole-mounted circuit breakers rely primarily on metal components secured with multiple bolts for wiring. In practice, maintenance personnel must tighten each bolt individually to crimp the conductors, a cumbersome and time-consuming process, especially in multi-circuit scenarios, resulting in low efficiency and failing to meet the demands of rapid power grid maintenance and fault handling. Furthermore, due to the high voltage of pole-mounted circuit breakers (typically 10kV and above), exposed metal terminals pose a risk of electric shock during operation, and uneven bolt tightening can increase contact resistance, leading to localized heating or even arcing, threatening equipment safety. For instance, during emergency repairs in thunderstorms, the damp environment further exacerbates the dangers of manual wiring, and loose bolts causing poor contact can lead to line tripping, equipment burnout, and other serious accidents. Therefore, we propose a pole-mounted circuit breaker that integrates primary and secondary circuits for easier wiring. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a primary and secondary integrated pole-mounted circuit breaker that is easy to wire, so as to solve the technical problems of the current wiring method being troublesome and highly dangerous.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a primary and secondary integrated pole-mounted circuit breaker that facilitates wiring, comprising a circuit breaker body, a wiring section on the circuit breaker body, an arc-proof cover on the energized part of the wiring section, an energized conductive ring inside the arc-proof cover, a wire harness sleeve installed at the center of the arc-proof cover, multiple side pressure slots on the wire harness sleeve, a synchronization ring on the outer periphery of the wire harness sleeve, multiple pressure-through structures installed on the synchronization ring, a disconnection metal sheet at the end of the pressure-through structure, the disconnection metal sheet being made of elastic metal material, the disconnection metal sheet having a curved trajectory structure, and the disconnection metal sheet including a squeezed curved segment for controlling the energization and disconnection.

[0005] Preferably, the synchronization ring includes multiple connecting rods forming a circular cross-section, wherein a plurality of the connecting rods are rotatably connected to bushings on their outer peripheries, and a connecting rod is fixed between the bushings and the inner wall of the arc shield, and a universal joint is connected between the ends of the multiple connecting rods.

[0006] Preferably, the pressing structure includes a fixed head, the inner circumference of which is connected to the outer circumference of the connecting rod, and a spinning block is fixed to the outer circumference of the fixed head.

[0007] Preferably, the broken metal sheet further includes a connecting bend section, which is connected to the extrusion bend section. The end of the extrusion bend section is fixed to one side of the side pressure groove, and one end of the connecting bend section is connected to an electrical connection section.

[0008] Preferably, the electrical connection section has a wavy, folded structure.

[0009] Preferably, the spinning block is provided with a pressing arc surface, and the distance between the pressing arc surface and the fixing head gradually increases.

[0010] Preferably, a fixing sleeve is connected to the connecting rod, and an extension plate penetrating the arc shield is connected to the outer periphery of the fixing sleeve. A compression bolt for compression positioning is provided on one side of the extension plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model drives the fixed sleeve and synchronous ring to rotate by rotating the extrusion bolt, which in turn drives multiple pressure-through structures to move synchronously, so that the disconnected metal piece contacts the energized conductive ring, completing the multi-circuit wiring in one go. Compared with the traditional method of tightening bolts one by one, the operation is simplified and convenient, significantly improving the efficiency of multi-circuit wiring. It is especially suitable for the scenario of rapid power grid repair, solving the problem of complicated and dangerous wiring methods.

[0013] 2. This utility model also uses an arc-extinguishing cover made of sulfur hexafluoride and other arc-extinguishing materials to completely wrap the wiring end, blocking the arc leakage path. In conjunction with the side pressure groove of the cable tie sleeve to constrain the wire, the arc is confined inside the cover, preventing operators from directly contacting the high-voltage live area. Especially in harsh environments such as humidity and thunderstorms, it can significantly reduce the risk of electric shock injury. Through the extension plate and the compression bolt, a non-contact wiring method of "mechanical transmission + physical isolation" is achieved. Maintenance personnel do not need to directly touch the live parts, eliminating electric shock accidents caused by operational errors at the source. It complies with the safety operation specifications for high-voltage equipment and further solves the problem of complicated and dangerous wiring methods.

[0014] 3. This utility model also increases the contact area with the conductor by adopting a wave-shaped folded structure for the electrical connection section of the disconnecting metal sheet. At the same time, the clamping force of the spinning block eliminates the contact gap, reduces the contact resistance, and reduces problems such as local heating and arc discharge caused by loose bolts or uneven tightening force, thus extending the service life of the equipment. The elastic metal material and bending trajectory design of the disconnecting metal sheet can automatically compensate for the displacement caused by the thermal expansion and contraction of the conductor, avoid loosening of the connection due to changes in ambient temperature, and ensure the stability of long-term operation, which is especially suitable for outdoor high-voltage scenarios.

[0015] 4. This utility model also adopts a distance-increasing design on the pressing arc surface of the spinning block, which can automatically adjust the squeezing force according to the diameter of the wire, and can adapt to different specifications of copper wire without changing accessories, reducing tool dependence and debugging time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the half-sectioned arc shield in this utility model;

[0018] Figure 3 This is a schematic diagram of the conductive ring portion in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the partially split conductive ring in this utility model;

[0020] Figure 5 This is a diagram showing the compression state of the pressure-through structure and the disconnected metal sheet in this utility model.

[0021] The labels in the diagram are as follows: 1. Circuit breaker body; 2. Wiring section; 3. Arc shield; 4. Conductive ring; 5. Cable bundle sleeve; 6. Synchronization ring; 7. Press-through structure; 8. Disconnecting metal plate; 9. Interconnecting rod; 10. Fixing sleeve; 11. Extension plate; 12. Extrusion bolt;

[0022] 601. Connecting rod; 602. Universal joint;

[0023] 701. Fixing head; 702. Spinning block; 703. Pressing arc surface;

[0024] 801. Extrusion bending arc section; 802. Continuous bending section; 803. Electrical connection section. Detailed Implementation

[0025] like Figures 1 to 5As shown, this utility model relates to a primary and secondary integrated pole-mounted circuit breaker that facilitates wiring. It includes a circuit breaker body 1, a wiring section 2 on the circuit breaker body 1, and an arc-proof cover 3 on the energized part of the wiring section 2. The arc-proof cover 3 is made of a material capable of extinguishing electric arcs, such as sulfur hexafluoride. An energized conductive ring 4 is provided inside the arc-proof cover 3. A wire harness sleeve 5 is installed at the center of the arc-proof cover 3. Multiple side-pressure slots are provided on the wire harness sleeve 5. A synchronization ring 6 is provided on the outer periphery of the wire harness sleeve 5. The synchronization ring 6 includes multiple connecting rods 601, which form a circular cross-section. A bushing is rotatably connected to the outer periphery of several connecting rods 601. A connecting rod 9 is fixed between the bushing and the inner wall of the arc-proof cover 3. Universal joints 602 are connected between the ends of the multiple connecting rods 601. The cooperation between the multiple connecting rods 601 and the universal joints 602 allows them to rotate synchronously. Multiple pressure-conducting structures 7 are installed on the synchronization ring 6.

[0026] The pressing structure 7 includes a fixed head 701, the inner circumference of the fixed head 701 is connected to the outer circumference of the connecting rod 601, a spinning block 702 is fixed on the outer circumference of the fixed head 701, and a disconnecting metal piece 8 is provided at the end of the spinning block 702. The disconnecting metal piece 8 is made of elastic metal material and has a curved trajectory structure.

[0027] To achieve positioning, a fixing sleeve 10 is connected to the connecting rod 601. An extension plate 11 that penetrates the arc shield 3 is connected to the outer periphery of the fixing sleeve 10. A compression bolt 12 for compression positioning is provided on one side of the extension plate 11.

[0028] Working principle: Insert the end of the energized copper wire into the inside of the cable bundle sleeve 5, rotate the compression bolt 12 to move the extension plate 11, causing the fixing sleeve 10 to rotate. With the synchronous rotation of multiple synchronous rings 6, the fixing head 701 rotates, further causing the spinning block 702 to press against the broken metal piece 8 and bend it. This causes the end of the broken metal piece 8 to shift and contact the energized conducting ring 4, thus completing the connection. The indirect operation method of energizing protects the workers. The entire operation can be completed by simply rotating and pressing down, improving the convenience of wiring. Furthermore, the arc shield 3 surrounds the energized end, preventing the arc from being exposed and causing injury to the workers.

[0029] The spinning block 702 is provided with a pressing arc surface 703. The distance between the pressing arc surface 703 and the fixing head 701 gradually increases. The disconnecting metal sheet 8 includes a compression bending arc segment 801 for controlling the disconnection of power supply. The disconnecting metal sheet 8 also includes a connecting bending segment 802, which is connected to the compression bending arc segment 801. The end of the compression bending arc segment 801 is fixed to one side of the side pressure groove. One end of the connecting bending segment 802 is connected to a power receiving segment 803. The power receiving segment 803 has a wave-shaped folded structure. The wave design of the power receiving segment 803 can increase the power contact point and ensure the stability of power supply.

[0030] Working principle: By increasing the distance of the pressing arc surface 703, the wiring of different diameters can be squeezed and fixed by the rotation angle of the surface. In addition, the wave-shaped structure of the connecting section 803 ensures that the connecting section 803 has sufficient power-carrying stability when squeezing and fixing wiring of different diameters.

[0031] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker that facilitates wiring, characterized in that, The circuit breaker includes a main body (1), a wiring part (2) is provided on the main body (1), an arc shield (3) is provided on the energized part of the wiring part (2), an energized conductive ring (4) is provided inside the arc shield (3), a wire harness sleeve (5) is installed at the center of the arc shield (3), a plurality of side pressure slots are provided on the wire harness sleeve (5), a synchronization ring (6) is provided on the outer periphery of the wire harness sleeve (5), a plurality of pressure-through structures (7) are installed on the synchronization ring (6), a disconnection metal piece (8) is provided at the end of the pressure-through structure (7), the disconnection metal piece (8) is made of elastic metal material, the disconnection metal piece (8) has a curved trajectory structure, and the disconnection metal piece (8) includes a squeezed curved arc segment (801) for controlling the energization disconnection.

2. The integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that, The synchronous ring (6) includes multiple connecting rods (601), which form a circular cross section. A bushing is rotatably connected to the outer circumference of several connecting rods (601). A connecting rod (9) is fixed between the bushing and the inner wall of the arc shield (3). A universal joint (602) is connected between the ends of the multiple connecting rods (601).

3. The integrated primary and secondary pole-mounted circuit breaker according to claim 2, characterized in that, The pressing structure (7) includes a fixing head (701), the inner circumference of the fixing head (701) is connected to the outer circumference of the connecting rod (601), and a spinning block (702) is fixed on the outer circumference of the fixing head (701).

4. The integrated primary and secondary pole-mounted circuit breaker according to claim 3, characterized in that, The disconnected metal sheet (8) also includes a connecting bend section (802), which is connected to the extrusion bend section (801). The end of the extrusion bend section (801) is fixed to one side of the side pressure groove, and one end of the connecting bend section (802) is connected to an electrical connection section (803).

5. A primary and secondary integrated pole-mounted circuit breaker as described in claim 4, characterized in that, The power connection section (803) has a wavy folded structure.

6. A primary and secondary integrated pole-mounted circuit breaker as described in claim 5, characterized in that, The spinning block (702) is provided with a pressing arc surface (703), and the distance between the pressing arc surface (703) and the fixing head (701) gradually increases.

7. A primary and secondary integrated pole-mounted circuit breaker as described in claim 6, characterized in that, A fixing sleeve (10) is connected to the connecting rod (601). An extension plate (11) that penetrates the arc shield (3) is connected to the outer periphery of the fixing sleeve (10). A pressing bolt (12) for pressing and positioning is provided on one side of the extension plate (11).

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