High-speed vacuum circuit breaker

Abstract

The utility model relates to the technical field of vacuum circuit breakers, and discloses a high-speed vacuum circuit breaker, which comprises a mounting base, a vacuum circuit breaker main body arranged at the upper part of the mounting base, a baffle plate fixedly arranged at the outer side of the vacuum circuit breaker main body, a fan fixedly arranged at the outer side of the baffle plate, and a connecting pipe communicated with the outer side of the fan, left and right heat dissipation net ports are formed in the two sides of the vacuum circuit breaker body, fin radiators are fixedly installed on the two sides of the vacuum circuit breaker body, an installation plate is fixedly installed on the inner wall of the vacuum circuit breaker body, a reciprocating lead screw is movably installed on the inner wall of the installation plate, and a first moving block is installed on the outer side of the reciprocating lead screw in a threaded mode. Blowing plates are fixedly mounted on the outer sides of the first moving blocks, and motors are fixedly mounted on the upper portions of the mounting plates. Therefore, the inside of the vacuum circuit breaker main body can be efficiently cooled, the damage of internal instruments caused by high temperature can be avoided, and the service life of the vacuum circuit breaker is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum circuit breakers, in particular to a high-speed vacuum circuit breaker. Background Technique

[0002] A vacuum circuit breaker is a circuit breaker that uses a vacuum state for arc extinguishing and insulation. It can be operated frequently and continuously break the rated current more than ten thousand times, and can also continuously break dozens or even hundreds of times under the rated short-circuit breaking current. It can be used for the protection and control of electrical equipment in industrial and mining enterprises, power plants, and substations. Its basic structure consists of a vacuum arc extinguishing chamber (vacuum switch tube), an insulating support, and an operating mechanism. It has the advantages of small volume, light weight, suitable for frequent operation, and no need for maintenance of arc extinguishing, and is widely used in the distribution network. However, most of the existing vacuum circuit breakers are used in industrial and mining enterprises, power plants, etc., and the temperature of the places where they are installed is generally very high. The internal heat dissipation structure of the existing vacuum circuit breaker is simple, generally a cooling fan is set, which cannot effectively dissipate heat inside the vacuum circuit breaker. At the same time, the heat dissipation filter screen is easily blocked, resulting in poor air circulation and affecting the heat dissipation effect. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides a high-speed vacuum circuit breaker, which has the advantages of being able to efficiently dissipate heat inside the main body of the vacuum circuit breaker, avoiding damage to internal instruments caused by high temperature, and improving the service life of the vacuum circuit breaker, and solves the problems raised in the above background technique.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the following technical solutions are provided: A high-speed vacuum circuit breaker includes a mounting base. The upper part of the mounting base is provided with a main body of the vacuum circuit breaker. A baffle is fixedly installed on the outside of the main body of the vacuum circuit breaker. A fan is fixedly installed on the outside of the baffle. A connecting pipe is communicated with the outside of the fan. Heat dissipation mesh openings are installed on both sides of the main body of the vacuum circuit breaker. Finned radiators are fixedly installed on both sides of the main body of the vacuum circuit breaker. A mounting plate is fixedly installed on the inner wall of the main body of the vacuum circuit breaker. A reciprocating lead screw is movably installed on the inner wall of the mounting plate. A first moving block is threadedly installed on the outside of the reciprocating lead screw. A blowing plate is fixedly installed on the outside of the first moving block. A motor is fixedly installed on the upper part of the mounting plate.

[0007] Preferably, the output end of the motor is fixedly connected to the upper end of the reciprocating lead screw. The outside of the first moving block is slidably connected to the inner wall of the main body of the vacuum circuit breaker. The lower end of the connecting pipe is communicated with the inside of the blowing plate.

[0008] Preferably, a fixed groove is formed at the bottom of the vacuum circuit breaker body, and a clamping groove is fixedly installed inside the vacuum circuit breaker body.

[0009] Preferably, an installation groove is formed inside the installation base, a unidirectional lead screw is movably installed on the inner wall of the installation groove, a second moving block is threadedly installed on the outer side of the unidirectional lead screw, and a clamping plate is fixedly installed on the upper part of the second moving block.

[0010] Preferably, a turning handle is fixedly installed at the front end of the unidirectional lead screw, and the outer side of the second moving block is slidably connected to the inner wall of the installation groove.

[0011] Preferably, a control panel is arranged on the front surface of the vacuum circuit breaker body.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the present utility model provides a high-speed vacuum circuit breaker, which has the following beneficial effects:

[0014] 1. For this high-speed vacuum circuit breaker, through the settings of the vacuum circuit breaker body, baffle, fan, connecting pipe, heat dissipation mesh opening, mounting plate, motor, reciprocating lead screw, first moving block, air blowing plate, and fin radiator, it can achieve efficient heat dissipation inside the vacuum circuit breaker body, avoid damage to internal instruments caused by high temperature, and improve the service life of the vacuum circuit breaker.

[0015] 2. For this high-speed vacuum circuit breaker, through the settings of the fixed groove, clamping groove, installation groove, unidirectional lead screw, second moving block, and clamping plate, it is convenient to install and disassemble the vacuum circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of the internal sectional structure of the present utility model;

[0018] Figure 3 It is a schematic diagram of the sectional structure of the fixed groove of the present utility model.

[0019] In the figure: 1. Installation base; 2. Vacuum circuit breaker body; 3. Baffle; 4. Fan; 5. Connecting pipe; 6. Heat dissipation mesh opening; 7. Mounting plate; 8. Motor; 9. Reciprocating lead screw; 10. First moving block; 11. Air blowing plate; 12. Fin radiator; 13. Fixed groove; 14. Clamping groove; 15. Installation groove; 16. Unidirectional lead screw; 17. Second moving block; 18. Clamping plate; 19. Control panel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments without creative efforts belong to the scope of protection.

[0021] Embodiment 1:

[0022] Please refer to Figures 1-3 , a high-speed vacuum circuit breaker, including an installation base 1, a vacuum circuit breaker main body 2 is installed on the upper part of the installation base 1, a baffle 3 is fixedly installed on the outside of the vacuum circuit breaker main body 2, a fan 4 is fixedly installed on the outside of the baffle 3, a connecting pipe 5 is communicated with the outside of the fan 4, left and right heat dissipation mesh openings 6 are arranged on both sides of the vacuum circuit breaker main body 2, fin radiators 12 are fixedly installed on both sides of the vacuum circuit breaker main body 2, a mounting plate 7 is fixedly installed on the inner wall of the vacuum circuit breaker main body 2, a reciprocating lead screw 9 is movably installed on the inner wall of the mounting plate 7, a first moving block 10 is threadedly installed on the outside of the reciprocating lead screw 9, a blowing plate 11 is fixedly installed on the outside of the first moving block 10, and a motor 8 is fixedly installed on the upper part of the mounting plate 7.

[0023] Specifically, the heat dissipation mesh openings 6 and fin radiators 12 on both sides of the vacuum circuit breaker main body 2 facilitate heat dissipation inside it. When the fan 4 works, the blowing plate 11 can blow strong wind. Then, when the motor 8 works, it drives the reciprocating lead screw 9 to rotate, and the moving block can drive the blowing plate 11 to move. The blowing plate 11 can blow air to the heat dissipation mesh openings 6 and fin radiators 12. The air blown from the inside can blow away the dust outside the heat dissipation mesh openings 6 to prevent the heat dissipation mesh openings 6 from being blocked, and the blowing of the fin radiators 12 can start to cool the fin radiators 12 and improve the heat dissipation effect.

[0024] Preferably, the output end of the motor 8 is fixedly connected to the upper end of the reciprocating lead screw 9, the outside of the first moving block 10 is slidably connected to the inner wall of the vacuum circuit breaker main body 2, and the lower end of the connecting pipe 5 is communicated with the inside of the blowing plate 11.

[0025] Working principle: Through the heat dissipation mesh openings 6 on both sides of the vacuum circuit breaker body 2, the air inside the vacuum circuit breaker body 2 can circulate, facilitating heat dissipation. The outside of the heat dissipation mesh openings 6 can filter the dust in the air, and then through the setting of the fin radiator 12, the heat inside the vacuum circuit breaker body 2 can be efficiently dissipated, completing the cooling of the inside of the vacuum circuit breaker body 2. At the same time, the motor 8 can be started to drive the reciprocating lead screw 9 to rotate. After the reciprocating lead screw 9 rotates, the first moving block 10 will move, and the first moving block 10 will drive the blowing plate 11 to move. The blowing plate 11 moves back and forth up and down inside the vacuum circuit breaker body 2. At the same time, the fan 4 works, enabling the blowing plate 11 to blow strong wind, blowing towards the heat dissipation mesh openings 6 and the fin radiator 12, which can blow away the dust on the heat dissipation mesh openings 6 to avoid blockage, and can also cool the fin radiator 12 to improve its working efficiency, thereby achieving efficient heat dissipation inside the vacuum circuit breaker body 2, avoiding damage to internal instruments caused by high temperature, and increasing the service life of the vacuum circuit breaker.

[0026] Embodiment 2:

[0027] Please refer to Figures 1-3 , a fixing groove 13 is opened at the bottom of the vacuum circuit breaker body 2, and a clamping groove 14 is fixedly installed inside the vacuum circuit breaker body 2.

[0028] Preferably, an installation groove 15 is opened inside the installation base 1, a one-way lead screw 16 is movably installed on the inner wall of the installation groove 15, a second moving block 17 is threadedly installed on the outer side of the one-way lead screw 16, and a clamping plate 18 is fixedly installed on the upper part of the second moving block 17.

[0029] Preferably, a turning handle is fixedly installed at the front end of the one-way lead screw 16, and the outer side of the second moving block 17 is slidably connected to the inner wall of the installation groove 15.

[0030] Preferably, a control panel 19 is arranged on the front surface of the vacuum circuit breaker body 2.

[0031] Working principle: During installation, place the vacuum circuit breaker body 2 on the installation base 1, and at the same time, align the fixing groove 13 with the clamping plate 18 of the installation base 1. Then, externally rotate the turning handle clockwise to drive the one-way lead screw 16 to rotate, and then the second moving block 17 will drive the clamping plate 18 to move towards the clamping groove 14, and the clamping plate 18 will snap into the clamping groove 14 to position the vacuum circuit breaker body 2. When disassembling, rotate the turning handle counterclockwise to make the clamping plate 18 leave the clamping groove 14, achieving convenient installation and disassembly of the vacuum circuit breaker body 2.

[0032] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit, and the scope is defined by the appended claims and their equivalents.

Claims

1. A high-speed vacuum circuit breaker, comprising a mounting base (1), characterized in that: A vacuum circuit breaker body (2) is mounted on the upper part of the mounting base (1); a baffle (3) is fixedly mounted on the outer side of the vacuum circuit breaker body (2); a fan (4) is fixedly mounted on the outer side of the baffle (3); a connecting pipe (5) is connected to the outer side of the fan (4); heat dissipation mesh ports (6) are mounted on both sides of the vacuum circuit breaker body (2); fin heat sinks (12) are fixedly mounted on both sides of the vacuum circuit breaker body (2); a mounting plate (7) is fixedly mounted on the inner wall of the vacuum circuit breaker body (2); a reciprocating screw (9) is movably mounted on the inner wall of the mounting plate (7); a first moving block (10) is threadedly mounted on the outer side of the reciprocating screw (9); a blowing plate (11) is fixedly mounted on the outer side of the first moving block (10); and a motor (8) is fixedly mounted on the upper part of the mounting plate (7).

2. The high-speed vacuum circuit breaker according to claim 1, characterized in that: The output end of the motor (8) is fixedly connected to the upper end of the reciprocating screw (9), the outer side of the first moving block (10) is slidably connected to the inner wall of the vacuum circuit breaker body (2), and the lower end of the connecting pipe (5) is connected to the inside of the blowing plate (11).

3. The high-speed vacuum circuit breaker according to claim 1, characterized in that: A fixing groove (13) is provided at the bottom of the vacuum circuit breaker body (2), and a clamping groove (14) is fixedly installed inside the vacuum circuit breaker body (2).

4. The high-speed vacuum circuit breaker according to claim 1, characterized in that: The mounting base (1) is provided with a mounting groove (15) inside, a one-way screw rod (16) is movably mounted on the inner wall of the mounting groove (15), a second moving block (17) is threadedly mounted on the outer side of the one-way screw rod (16), and a clamping plate (18) is fixedly mounted on the upper part of the second moving block (17).

5. The high-speed vacuum circuit breaker according to claim 4, characterized in that: A turning handle is fixedly mounted on the front end of the one-way screw rod (16), and the outer side of the second moving block (17) is slidably connected to the inner wall of the mounting groove (15).

6. The high-speed vacuum circuit breaker according to claim 1, characterized in that: A control panel (19) is provided on the front of the vacuum circuit breaker body (2).

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