Electromagnetic type primary and secondary fusion complete column-mounted circuit breaker

Abstract

The utility model relates to the technical field of electrical equipment, in particular to an electromagnetic type primary and secondary fusion complete column-mounted circuit breaker, which comprises an electromagnetic type circuit breaker main body, a mounting seat is arranged at the bottom end of the electromagnetic type circuit breaker main body, and the electromagnetic type circuit breaker main body is fixedly mounted at the top end of the mounting seat. Butt joint mechanisms are machined on the two sides of the electromagnetic circuit breaker body and penetrate into the mounting base. And a sealing mechanism is arranged on the surface of the electromagnetic circuit breaker main body. According to the utility model, through mutual cooperation of internal parts of the butt joint mechanism, the risk of electrifying the mounting seat can be reduced, through mutual cooperation of internal parts of the sealing mechanism, sealing protection can be performed when the electrifying end is not used, and when the electrifying end is connected with the cable connecting end, sealing protection can be performed. And the sealing plate can also seal and fill the gap between the energizing end and the cable connecting end, so that the sealing performance of the energizing end is improved, and the risk of short circuit caused by dust entering the electromagnetic circuit breaker main body is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to an electromagnetic primary and secondary integrated pole-mounted circuit breaker. Background Technology

[0002] Electromagnetic primary and secondary integrated pole-mounted circuit breakers refer to the deep integration of primary equipment (such as circuit breakers) and secondary equipment (such as control units and sensors) to form a complete set of standardized, miniaturized, and intelligent pole-mounted switching equipment. This integration aims to solve problems such as incompatible interfaces between primary and secondary equipment in traditional power systems, difficulty in equipment expansion, and difficulty in determining responsibility during faults. It improves the construction level, operation level, and maintenance quality and efficiency of distribution networks. Electromagnetic primary and secondary integrated pole-mounted circuit breakers are suitable for breaking and closing load currents and overload currents in the main lines and long branches of medium-voltage distribution networks in urban (rural) grids. They can automatically isolate fault sections and ensure the safe and stable operation of the power system. Electromagnetic primary and secondary integrated pole-mounted circuit breakers mainly consist of a switch body, built-in instrument transformers, control units, and power PTs. The power PTs and switch body are generally installed on the base of the electromagnetic primary and secondary integrated pole-mounted circuit breaker, while the built-in instrument transformers and control units are generally installed in the poles on the base.

[0003] A search revealed a utility model patent with publication number CN209298003U, which discloses a primary and secondary integrated pole-mounted circuit breaker support pole, including a vacuum tube. A first and second electronic voltage transformer are installed on the left side of the vacuum tube, and a current transformer is installed on the right side. An insulating pull rod is installed at the lower end of the vacuum tube, and an adjusting head is installed at the lower end of the insulating pull rod. This utility model achieves miniaturization and integration, facilitating user installation. It solves the problem that current poles cannot effectively reduce space occupation for miniaturization and achieve integration.

[0004] While the aforementioned patent achieves integrated pole posts and facilitates installation on the base of the integrated primary and secondary pole-mounted circuit breaker, solving the current problems of ineffective space reduction and miniaturization of pole posts, and the inability to achieve integration, the electromagnetic integrated primary and secondary pole-mounted circuit breaker, despite having a vacuum-like environment around its casing providing some insulation, lacks good insulation at its bottom. Therefore, when the electromagnetic integrated primary and secondary pole-mounted circuit breaker is installed on the mounting base, the mounting base may become energized. Furthermore, the surface of the electromagnetic integrated primary and secondary pole-mounted circuit breaker has energized terminals; when not in use, these terminals are exposed to air for extended periods, allowing dust to enter. This can lead to poor contact between the energized terminals and cable connections during installation and use, potentially causing a short circuit.

[0005] Therefore, it is necessary to propose an electromagnetic primary and secondary integrated pole-mounted circuit breaker to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide an electromagnetic primary and secondary integrated pole-mounted circuit breaker. Through the cooperation of internal components in the docking mechanism, the risk of energization of the mounting base can be reduced. Through the cooperation of internal components in the sealing mechanism, the energized end can be sealed and protected when not in use. Furthermore, when the energized end is connected to the cable connection end, the sealing plate can also seal and fill the gap between the energized end and the cable connection end, thereby improving the sealing performance of the energized end and reducing the risk of short circuits caused by dust entering the electromagnetic circuit breaker body. This solves the problem in the prior art where the surface of the electromagnetic primary and secondary integrated pole-mounted circuit breaker has an energized end, and when not in use, the energized end is exposed to air for a long time, allowing some dust to enter the energized end. This leads to poor contact between the energized end and the cable connection end during installation and use, potentially causing a short circuit.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electromagnetic primary and secondary integrated pole-mounted circuit breaker, comprising an electromagnetic circuit breaker body, a mounting base provided at the bottom end of the electromagnetic circuit breaker body, the electromagnetic circuit breaker body being mounted and fixed at the top end of the mounting base, and mating mechanisms machined on both sides of the electromagnetic circuit breaker body, extending into the interior of the mounting base; a sealing mechanism is provided on the surface of the electromagnetic circuit breaker body.

[0008] The docking mechanism includes a connecting seat, which is machined on both sides of the outer wall of the electromagnetic circuit breaker body and is connected to the top of the mounting base by bolts. An insulating seat is machined at the bottom of the electromagnetic circuit breaker body and extends into the interior of the mounting base. A docking post is machined at the top of the mounting base and extends into the interior of the insulating seat. An insulating ring is fitted onto the outer wall of the insulating seat and extends through the insulating seat to the inner wall of the insulating seat. A flexible airbag is provided on the inner wall of the insulating seat and is connected to the insulating ring.

[0009] The sealing mechanism includes an energized end, which is fixedly connected to the outer wall of the electromagnetic circuit breaker body. The top and bottom ends of the inner wall of the energized end are rotatably connected to a support shaft, which is located at the connection between the energized end and the electromagnetic circuit breaker body. A sealing plate is provided between the support shafts and is fixedly connected to the bottom end of the support shaft. A torsion spring is sleeved on the outer wall of the support shaft, and its two ends are fixedly connected to the support shaft and the energized end, respectively.

[0010] Preferably, the sealing mechanism further includes a connecting block, which is slidably connected to the interior of the energized end. A support plate is machined on the top of the connecting block and is slidably connected to the interior of the energized end. A fixing block is machined on the end of the support plate away from the connecting block and extends through the electromagnetic circuit breaker body to the interior of the support shaft. A support spring is fixedly connected between the top of the support plate and the inner wall of the energized end.

[0011] Preferably, the top end of the mounting base has a threaded hole that matches the connecting base, the top end of the mounting base has a mating groove that matches the insulating base, and the top end of the insulating base has a connecting groove that matches the mating post.

[0012] Preferably, the contact surface between the top of the docking post and the insulating ring is provided with an arc surface, the insulating ring is mainly made of insulating rubber, and both the inner wall of the insulating seat and the inner wall of the mounting seat have filling grooves that match the insulating ring.

[0013] Preferably, the inner wall of the energized end is provided with a threaded groove that matches the cable connection end, the support shaft is rotatably connected between the energized end and the inner wall of the electromagnetic circuit breaker body through ball bearings, and the main materials of the sealing plate are flexible rubber and PVC.

[0014] Preferably, the surface of the connecting block that contacts the cable connection end is an arc surface, the surface of the support shaft is provided with a limiting groove that matches the fixing block, and the interior of the power-on end is provided with a support groove that matches the support plate.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] By aligning the electromagnetic circuit breaker body with the mounting base, the insulating base at the bottom of the electromagnetic circuit breaker body and the connecting post on the mounting base are connected and penetrate into each other, thus achieving precise positioning of the electromagnetic circuit breaker body and the mounting base. By using fixing bolts to pass through the connecting base into the threaded hole on the mounting base, the installation and fixation between the electromagnetic circuit breaker body and the mounting base can be completed. At the same time, the connecting post compresses the insulating ring, causing the flexible air bladder of the insulating ring to deform under pressure, thus allowing the insulating ring to fill the space between the insulating base and the mounting base. This improves the insulation of the connection and fixation between the bottom of the electromagnetic circuit breaker body and the mounting base through the insulating base and the insulating ring.

[0017] The cable connector is connected to the energized end, and the cable connector is threaded through the energized end and contacts the connecting block. The connecting block is stressed, causing the support plate to compress the support spring and move. This movement of the support plate causes the fixed block to move out of the support shaft, thus releasing the rotation limit on the support shaft. At the same time, the cable connector continues to move and contacts the sealing plate, compressing it. The sealing plate, through the compression of the torsion spring by the support shaft, twists and rotates, thus releasing the sealing protection between the energized end and the electromagnetic circuit breaker body. This allows the cable connector to penetrate into the electromagnetic circuit breaker body and supply power to its internal electrical components. Simultaneously, the sealing plate deforms under pressure, changing from a semi-circular shape to a conical shape, and sealing the connection between the electromagnetic circuit breaker body and the cable connector. This prevents dust from entering the electromagnetic circuit breaker body and causing a short circuit. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded structural diagram of the electromagnetic circuit breaker body and mounting base of this utility model.

[0021] Figure 3 This is a cross-sectional structural diagram of the insulating base of this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the energized end of this utility model;

[0023] Figure 5 This is a schematic diagram of the deformation structure of the sealing plate of this utility model;

[0024] Figure 6 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Electromagnetic circuit breaker body; 101. Mounting base; 2. Docking mechanism; 201. Connecting base; 202. Insulating base; 203. Docking post; 204. Flexible airbag; 205. Insulating ring; 3. Sealing mechanism; 301. Power-on end; 302. Support shaft; 303. Torsion spring; 304. Sealing plate; 305. Connecting block; 306. Support plate; 307. Fixing block; 308. Support spring. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model provides, for example Figure 1-6 The electromagnetic primary and secondary integrated pole-mounted circuit breaker shown includes an electromagnetic circuit breaker body 1, a mounting base 101 at the bottom of the electromagnetic circuit breaker body 1, the electromagnetic circuit breaker body 1 being mounted and fixed at the top of the mounting base 101, and docking mechanisms 2 being machined on both sides of the electromagnetic circuit breaker body 1 and extending into the interior of the mounting base 101; a sealing mechanism 3 is provided on the surface of the electromagnetic circuit breaker body 1.

[0029] The docking mechanism 2 includes a connecting seat 201, which is machined on both sides of the outer wall of the electromagnetic circuit breaker body 1. The connecting seat 201 is connected to the top of the mounting seat 101 by bolts. An insulating seat 202 is machined at the bottom of the electromagnetic circuit breaker body 1 and extends into the interior of the mounting seat 101. A docking post 203 is machined at the top of the mounting seat 101 and extends into the interior of the insulating seat 202. An insulating ring 205 is sleeved on the outer wall of the insulating seat 202 and extends through the insulating seat 202 to the inner wall of the insulating seat 202. A flexible airbag 204 is provided on the inner wall of the insulating seat 202 and is connected to the insulating ring 205.

[0030] The sealing mechanism 3 includes an energized end 301, which is fixedly connected to the outer wall of the electromagnetic circuit breaker body 1. The top and bottom ends of the inner wall of the energized end 301 are rotatably connected to a support shaft 302, which is located at the connection between the energized end 301 and the electromagnetic circuit breaker body 1. A sealing plate 304 is provided between the support shafts 302 and is fixedly connected to the bottom end of the support shafts 302 respectively. A torsion spring 303 is sleeved on the outer wall of the support shaft 302 and is fixedly connected to the support shaft 302 and the energized end 301 at both ends respectively.

[0031] Through the cooperation of the internal parts of the docking mechanism 2, the electromagnetic circuit breaker body 1 can be docked and installed on the mounting base 101. The connection between the insulating ring 205 and the insulating base 202 and the mounting base 101 reduces the risk of the mounting base 101 being energized. Through the cooperation of the internal parts of the sealing mechanism 3, the energized end 301 can be sealed and protected when not in use. When the energized end 301 is connected to the cable connection end, the sealing plate 304 can also seal and fill the gap between the energized end 301 and the cable connection end, thereby improving the sealing performance of the energized end 301 and reducing the risk of short circuit caused by dust entering the electromagnetic circuit breaker body 1.

[0032] Refer to the instruction manual appendix Figure 1-6 The sealing mechanism 3 also includes a connecting block 305, which is slidably connected to the inside of the energized end 301. A support plate 306 is machined on the top of the connecting block 305 and is slidably connected to the inside of the energized end 301. A fixing block 307 is machined on the end of the support plate 306 away from the connecting block 305 and passes through the electromagnetic circuit breaker body 1 to the inside of the support shaft 302. A support spring 308 is fixedly connected between the top of the support plate 306 and the inner wall of the energized end 301. Through the mutual cooperation between the internal parts of the sealing mechanism 3, the fixing block 307 can pass through the inside of the support shaft 302 to complete the position limit of the support shaft 302.

[0033] Refer to the instruction manual appendix Figure 1-6 The top of the mounting base 101 has a threaded hole that matches the connecting base 201, and the top of the mounting base 101 has a mating groove that matches the insulating base 202. The top of the insulating base 202 has a connecting groove that matches the docking post 203. The mating groove on the top of the mounting base 101 matches the insulating base 202, and the connecting groove on the top of the insulating base 202 matches the docking post 203, which facilitates the docking of the insulating base 202 and the docking post 203, so that the electromagnetic circuit breaker body 1 can be accurately installed and fixed on the mounting base 101.

[0034] Refer to the instruction manual appendix Figure 1-6 The contact surface between the top of the docking post 203 and the insulating ring 205 is provided with an arc surface. The insulating ring 205 is mainly made of insulating rubber, and the inner wall of the insulating seat 202 and the inner wall of the mounting seat 101 are both provided with filling grooves that match the insulating ring 205. By using insulating rubber as the main material for the insulating ring 205 and providing filling grooves that match the insulating ring 205 on the inner wall of the insulating seat 202 and the inner wall of the mounting seat 101, it is easy for the insulating ring 205 to fill the space between the inner wall of the insulating seat 202 and the inner wall of the mounting seat 101 under force, thereby improving the insulation between the insulating seat 202 and the mounting seat 101.

[0035] Refer to the instruction manual appendix Figure 1-6The inner wall of the energized end 301 is provided with a threaded groove that matches the cable connection end. The support shaft 302 is rotatably connected between the energized end 301 and the inner wall of the electromagnetic circuit breaker body 1 through ball bearings. The main materials of the sealing plate 304 are flexible rubber and PVC. The main materials of the sealing plate 304 are flexible rubber and PVC, which makes the sealing plate 304 have good insulation properties, and the sealing plate 304 can undergo a certain deformation when squeezed.

[0036] Refer to the instruction manual appendix Figure 1-6 The surface of the connecting block 305 and the contact surface with the cable connection end are set as an arc surface. The surface of the support shaft 302 is provided with a limiting groove that matches the fixing block 307. The inside of the power-on end 301 is provided with a support groove that matches the support plate 306. The limiting groove that matches the fixing block 307 on the surface of the support shaft 302 facilitates the fixing block 307 to pass through the inside of the support shaft 302 and complete the limiting and fixing of the support shaft 302.

[0037] The working principle of this practical application is as follows:

[0038] Refer to the instruction manual appendix Figure 1-6 By aligning the electromagnetic circuit breaker body 1 with the mounting base 101, the insulating seat 202 at the bottom of the electromagnetic circuit breaker body 1 and the docking post 203 on the mounting base 101 are docked and penetrate into the insulating seat 202 and the mounting base 101, thus achieving precise positioning of the electromagnetic circuit breaker body 1 and the mounting base 101. By passing the fixing bolt through the connecting seat 201 to the threaded hole on the mounting base 101, the installation and fixation between the electromagnetic circuit breaker body 1 and the mounting base 101 can be completed. At the same time, the docking post 203 compresses the insulating ring 205, causing the insulating ring 205 to deform under the pressure of the flexible air bag 204. This allows the insulating ring 205 to fill the space between the insulating seat 202 and the mounting base 101 with insulation, thereby improving the insulation performance of the connection and fixation between the bottom of the electromagnetic circuit breaker body 1 and the mounting base 101 through the insulating seat 202 and the insulating ring 205.

[0039] Refer to the instruction manual appendix Figure 1-6The cable connection is interconnected with the power supply end 301, with the cable connection threaded through the power supply end 301 and contacting the connecting block 305. The connecting block 305, under pressure, causes the support plate 306 to compress the support spring 308, causing it to contract and move. This movement of the support plate 306 causes the fixing block 307 to move out of the support shaft 302, thus releasing the rotational limit on the support shaft 302. Simultaneously, the cable connection continues to move and contact the sealing plate 304, compressing it. The sealing plate 304, through the support shaft 302, compresses the torsion spring 308. 03 By twisting and rotating, the sealing plate 304 can release the sealing protection between the energized end 301 and the electromagnetic circuit breaker body 1, allowing the cable connection end to pass through into the electromagnetic circuit breaker body 1 and supply power to the internal electrical components. At the same time, the sealing plate 304 is deformed by compression, changing from a semi-circular shape to a conical shape, and sealing the connection between the electromagnetic circuit breaker body 1 and the cable connection end. This prevents dust from entering the electromagnetic circuit breaker body 1 and causing a short circuit risk.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An electromagnetic primary and secondary integrated pole-mounted circuit breaker, characterized in that: The device includes an electromagnetic circuit breaker body (1), with a mounting base (101) at the bottom end of the electromagnetic circuit breaker body (1). The electromagnetic circuit breaker body (1) is fixedly mounted on the top end of the mounting base (101). The electromagnetic circuit breaker body (1) has docking mechanisms (2) machined on both sides, which extend into the interior of the mounting base (101). The surface of the electromagnetic circuit breaker body (1) is provided with a sealing mechanism (3). The docking mechanism (2) includes a connecting seat (201), which is machined on both sides of the outer wall of the electromagnetic circuit breaker body (1) and is connected to the top of the mounting seat (101) by bolts. The bottom end of the electromagnetic circuit breaker body (1) is machined with an insulating seat (202) that extends into the interior of the mounting seat (101). The top end of the mounting seat (101) is machined with a docking post (203) that extends into the interior of the insulating seat (202). An insulating ring (205) is fitted onto the outer wall of the insulating seat (202) and extends through the insulating seat (202) to the inner wall of the insulating seat (202). A flexible airbag (204) is provided on the inner wall of the insulating seat (202) and is connected to the insulating ring (205). The sealing mechanism (3) includes an energized end (301), which is fixedly connected to the outer wall of the electromagnetic circuit breaker body (1). The top and bottom ends of the inner wall of the energized end (301) are rotatably connected to a support shaft (302), which is located at the connection between the energized end (301) and the electromagnetic circuit breaker body (1). A sealing plate (304) is provided between the support shafts (302), and is fixedly connected to the bottom end of the support shafts (302). A torsion spring (303) is sleeved on the outer wall of the support shafts (302), and is fixedly connected to the support shafts (302) and the energized end (301) at both ends.

2. The electromagnetic primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The sealing mechanism (3) further includes a connecting block (305), which is slidably connected to the inside of the energized end (301). A support plate (306) is machined on the top of the connecting block (305) and is slidably connected to the inside of the energized end (301). A fixing block (307) is machined on the end of the support plate (306) away from the connecting block (305) and passes through the electromagnetic circuit breaker body (1) to the inside of the support shaft (302). A support spring (308) is fixedly connected between the top of the support plate (306) and the inner wall of the energized end (301).

3. The electromagnetic primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The top end of the mounting base (101) is provided with a threaded hole that matches the connecting base (201), the top end of the mounting base (101) is provided with a mating groove that matches the insulating base (202), and the top end of the insulating base (202) is provided with a connecting groove that matches the mating post (203).

4. The electromagnetic primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The top of the docking post (203) has an arc surface in contact with the insulating ring (205). The insulating ring (205) is mainly made of insulating rubber. The inner wall of the insulating seat (202) and the inner wall of the mounting seat (101) are both filled with filling grooves that match the insulating ring (205).

5. An electromagnetic primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The inner wall of the power-on end (301) is provided with a threaded groove that matches the cable connection end. The support shaft (302) is rotatably connected between the power-on end (301) and the inner wall of the electromagnetic circuit breaker body (1) by ball bearings. The main materials of the sealing plate (304) are flexible rubber and PVC.

6. An electromagnetic primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that: The surface of the connecting block (305) and the contact surface of the cable connection end are set as an arc surface, the surface of the support shaft (302) is provided with a limiting groove that matches the fixing block (307), and the interior of the power-on end (301) is provided with a support groove that matches the support plate (306).

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