A circuit breaker pole column semi-enclosed device

Abstract

The utility model discloses a circuit breaker pole half solid seal device that is flexible in processing, good in heat dissipation and lower in cost. The technical scheme comprises: a half solid seal pole and a vacuum arc-extinguishing chamber arranged in the half solid seal pole, the half solid seal pole is provided with a fixing seat connected with the top of the vacuum arc-extinguishing chamber through a groove at the top, a lap joint block is formed by an integrally-formed first support seat insert at the front end, a fixing plate is arranged on the first support seat in the inner cavity, the fixing plate is supported at the lower end of the vacuum arc-extinguishing chamber, a flexible connecting wire is installed on the movable conducting rod at the lower end of the vacuum arc-extinguishing chamber, and the front end of the flexible connecting wire is connected with the lap joint block.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breakers, and in particular relates to a circuit breaker pole. Background Technology

[0002] Existing solid-sealed poles are integrally injection molded and cured with insulating materials such as epoxy resin and internal conductive components (such as contacts and conductive rods) to form an integrated sealed structure. Their core advantages lie in stable insulation performance and strong resistance to environmental interference, effectively isolating electrical components from dust and moisture corrosion. Therefore, they have long been used in high-voltage circuit breakers, GIS (gas-insulated switchgear), and other equipment. However, in actual production, operation, maintenance, and performance adaptation, the technical characteristics of solid-sealed poles create inherent and difficult-to-overcome shortcomings, particularly in three key areas: cost control, processing flexibility, and temperature rise and heat dissipation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a circuit breaker pole semi-solid sealing device that is flexible in processing, has good heat dissipation, and has lower cost.

[0004] To solve the above problems, the technical solution adopted by this utility model includes: a semi-solid-sealed pole and a vacuum interrupter disposed in the semi-solid-sealed pole. The semi-solid-sealed pole is provided with a fixed seat connected to the top of the vacuum interrupter through a groove at the top. A lap block is formed at the front end through an integrally formed first support seat insert. A fixed plate is provided in the inner cavity and placed on the first support seat. The fixed plate is supported at the lower end of the vacuum interrupter. A flexible connecting wire is installed on the moving conductive rod at the lower end of the vacuum interrupter. The front end of the flexible connecting wire is connected to the lap block.

[0005] An insulating pull rod is connected to the moving conductive rod at the lower end of the vacuum interrupter.

[0006] The top of the insulating pull rod is provided with a metal bushing, and a spring, a connector and a clamping member are arranged in sequence inside the metal bushing. The connector is connected to the flexible connecting wire and the moving conductive rod of the vacuum interrupter.

[0007] The second support base, integrally formed at the front end of the semi-solid-sealed pole, has a first nut embedded in its inner part.

[0008] The semi-solid-sealed pole has an integrally formed mounting flange at the bottom.

[0009] The fixing plate is cross-shaped.

[0010] The bottom insert of the insulating tie rod is formed with a second nut.

[0011] The fixing base has a first screw hole at both ends that connects to the semi-solidified pole, a second screw hole in the middle, and a third screw hole at the front end of the overlapping block.

[0012] The main advantages of the semi-solid-sealed circuit breaker pole device of this utility model are as follows: It adopts a modular design and a split assembly structure design, which solves the disadvantages of traditional solid-sealed poles such as high cost, difficult processing and poor heat dissipation. The structure also takes into account the advantages of insulation reliability.

[0013] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the semi-solid sealing device for the circuit breaker pole of this utility model; Figure 2 This is a cross-sectional view of the semi-solid sealing device for the circuit breaker pole of this utility model; Figure 3 This is a schematic diagram of the structure of the semi-solid-sealed pole of this utility model; Figure 4 This is a structural schematic diagram of the fixing plate of this utility model; Figure 5 This is a structural schematic diagram of the overlapping block of this utility model. Detailed Implementation

[0015] Reference Figure 1-5 As shown, the circuit breaker pole semi-sealed device of this utility model includes: a semi-sealed pole 1 and a vacuum interrupter 2 disposed within the semi-sealed pole 1. The semi-sealed pole 1 is ideally integrally made of epoxy resin. A fixing seat 4, connected to the top of the vacuum interrupter 2, is provided on the top of the semi-sealed pole 1 via a groove 3. The fixing seat 4 is fixed to the vacuum interrupter 2 by a screw. A connecting block 6 is formed at the front end of the semi-sealed pole 1 via an integrally formed first support seat 5 insert through the groove 3 at the top. A fixing plate 7, placed on the first support seat 5, is provided inside the semi-sealed pole 1, and the fixing plate 7 is supported at the lower end of the vacuum interrupter 2. A flexible connecting wire 9 is installed on the moving conductive rod 8 at the lower end of the vacuum interrupter 2, and the front end of the flexible connecting wire 9 is connected to the connecting block 6. The fixing base 4 has first screw holes 19 at both ends for connecting to the semi-solid-sealed pole 1. By inserting screws into the first screw holes 19 and fixing them to the semi-solid-sealed pole 1, a stable connection between the semi-solid-sealed pole 1 and the vacuum interrupter 2 is achieved. The fixing base 4 has a set of second screw holes 20 in the middle. The front end of the connecting block 6 has a set of third screw holes 21. By inserting screws into the third screw holes 21, the connection between the stationary knife seat of the circuit breaker and the flexible connecting wire 9 is achieved, and the stationary knife seat is fixed.

[0016] Preferably, an insulating pull rod 10 is connected to the moving conductive rod 8 at the lower end of the vacuum interrupter 2. The insulating pull rod 10 is connected to the circuit breaker transmission mechanism to realize the opening and closing operation of the vacuum interrupter 2.

[0017] Preferably, the insulating pull rod 10 has a metal bushing 11 at its top, and a spring 12, a connector 13, and a clamping member 14 are sequentially arranged inside the metal bushing 11. After assembly, the connector 13 can move within the metal bushing 11. The connector 13 is connected to the flexible connecting wire 9 and the moving conductive rod 8 of the vacuum interrupter 2. This structure serves to buffer the vacuum interrupter 2 during opening and closing operations, thereby improving stability.

[0018] Preferably, the second support base 15 is integrally formed at the front end of the semi-solid-sealed pole 1, and a first nut 16 is formed inside the second support base 15. By inserting a screw into the first nut 16, the isolating seat of the circuit breaker is fixed to the semi-solid-sealed pole 1.

[0019] Preferably, the bottom of the semi-solid-sealed pole 1 is integrally formed with a mounting flange 17, and a screw is installed in the mounting flange 17 to realize the connection between the semi-solid-sealed pole 1 and the circuit breaker transmission mechanism.

[0020] Preferably, the fixing plate 7 is cross-shaped, and the semi-sealed pole 1 has a cavity adapted to the fixing plate 7 to prevent the fixing plate 7 from rotating.

[0021] Preferably, the bottom insert of the insulating rod 10 is formed with a second nut 18 to improve the connection strength of the insulating rod 10.

[0022] The foregoing is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A semi-solid sealing device for a circuit breaker pole, characterized in that, include: A semi-solid-sealed pole (1) and a vacuum interrupter (2) disposed in the semi-solid-sealed pole (1). The semi-solid-sealed pole (1) is provided with a fixed seat (4) connected to the top of the vacuum interrupter (2) through a groove (3) at the top. A lap block (6) is formed at the front end through an integrally formed first support seat (5) insert. A fixed plate (7) is provided in the inner cavity and placed on the first support seat (5). The fixed plate (7) is supported at the lower end of the vacuum interrupter (2). A flexible connecting wire (9) is installed on the moving conductive rod (8) at the lower end of the vacuum interrupter (2), and the front end of the flexible connecting wire (9) is connected to the lap block (6).

2. The circuit breaker pole semi-solid sealing device according to claim 1, characterized in that: An insulating pull rod (10) is connected to the moving conductive rod (8) at the lower end of the vacuum interrupter (2).

3. The circuit breaker pole semi-solid sealing device according to claim 2, characterized in that: The insulating pull rod (10) is provided with a metal bushing (11) at the top. The metal bushing (11) is provided with a spring (12), a connector (13) and a clamping member (14) in sequence. The connector (13) is connected to the flexible connecting wire (9) and the vacuum interrupter (2) by a moving conductive rod (8).

4. The circuit breaker pole semi-solid sealing device according to claim 1, characterized in that: The second support base (15) is integrally formed at the front end of the semi-solid-sealed pole post (1), and the second support base (15) has a first nut (16) embedded in it.

5. The circuit breaker pole semi-solid sealing device according to claim 1, characterized in that: The bottom of the semi-solid-sealed pole (1) is integrally formed with an installation flange (17).

6. The circuit breaker pole semi-solid sealing device according to claim 1, characterized in that: The fixing plate (7) is cross-shaped.

7. The circuit breaker pole semi-solid sealing device according to claim 2, characterized in that: The bottom insert of the insulating pull rod (10) is formed with a second nut (18).

8. The circuit breaker pole semi-solid sealing device according to claim 1, characterized in that: The fixed base (4) has a first screw hole (19) at both ends that connects to the semi-solidified pole (1), a second screw hole (20) in the middle, and a third screw hole (21) at the front end of the overlapping block (6).

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