Anti-condensation high-voltage vacuum circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, and discloses an anti-condensation high-voltage vacuum circuit breaker which comprises a case, a plurality of vacuum arc extinguish chambers are installed on the upper surface of the case, and a dustproof box is fixedly installed on the outer surface of the case. According to the anti-condensation high-voltage vacuum circuit breaker, by arranging the temperature sensor and the humidity sensor, the purpose of monitoring the internal humidity and temperature of the dustproof box can be achieved, when the internal temperature is too high, by arranging the axial flow fan, internal air circulation can be accelerated, the heat dissipation efficiency can be improved, and when the humidity is high, the heat dissipation efficiency can be improved. According to the invention, through cooperation of a heating wire and an axial flow fan, the purpose of heating air can be achieved, the air humidity in the dustproof box is effectively reduced, through cooperation of a moisture absorption block, the moisture resistance is further improved, through arrangement of a dustproof net, dust can be intercepted, the heat dissipation efficiency of the case and the vacuum arc-extinguishing chamber is ensured, and through a cross-shaped cleaning plate, the heat dissipation efficiency of the case and the vacuum arc-extinguishing chamber is improved. And a dustproof net can be cleaned, blockage can be avoided, and the ventilation efficiency is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breakers, and in particular to an anti-condensation high-voltage vacuum circuit breaker. Background Art

[0002] High voltage vacuum circuit breaker is a circuit breaker that uses vacuum as an insulating and arc extinguishing medium. In a vacuum circuit breaker, the contacts break the circuit in a vacuum, using the insulation and arc extinguishing capabilities of the vacuum to open and close the circuit.

[0003] High-voltage vacuum circuit breakers are widely used in power systems. When the temperature is high at noon in summer and the relative humidity of the air is high, the temperature drops at night, which may cause water in the air to condense. This condensation phenomenon will not only affect the dielectric strength of the external insulation of the high-voltage vacuum circuit breaker and reduce its insulation performance, but may also cause metal parts to rust, resulting in reduced insulation and mold in the secondary circuit of the mechanism box and control box, causing safety hazards. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present application provides an anti-condensation high-voltage vacuum circuit breaker, which has the advantages of anti-condensation and solves the problem of safety hazards caused by condensation on the surface of the circuit breaker.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: an anti-condensation high-voltage vacuum circuit breaker, comprising a chassis, a plurality of vacuum interrupter chambers are installed on the upper surface of the chassis, a dustproof box is fixedly installed on the outer surface of the chassis, both left and right sides of the dustproof box are fixedly connected with air ducts, dustproof nets are installed at the ends of the two air ducts away from each other, and an axial flow fan is installed inside each of the air ducts;

[0006] A heating wire is installed inside the air duct on the left, and a humidity sensor and a temperature sensor are installed on the inner top wall of the dustproof box from left to right.

[0007] Through the above scheme, the purpose of monitoring the internal humidity and temperature of the dustproof box can be achieved by setting the temperature sensor and humidity sensor. When the internal temperature is too high, the internal air circulation can be accelerated by the setting of the axial flow fan to improve the heat dissipation efficiency. When the humidity is high, the setting of the heating wire in conjunction with the axial flow fan can achieve the purpose of heating the air, effectively reducing the air humidity inside the dustproof box, and cooperating with the setting of the moisture-absorbing block to further improve the moisture-proof performance. The dust can be intercepted by the dustproof net to ensure the heat dissipation efficiency of the chassis and the vacuum arc chamber. The dustproof net can be cleaned by the cross cleaning plate to avoid blockage and ensure ventilation efficiency.

[0008] Furthermore, the ends of the two air ducts that are away from each other are rotatably connected to a gear ring, the inner walls of the two gear rings are fixedly connected to a cross cleaning plate, and each cross cleaning plate is in contact with the dustproof net adjacent to it.

[0009] Through the above scheme, by setting the cross plate, the purpose of cleaning the filter can be achieved, and the clogging of the dust screen can be effectively avoided.

[0010] Furthermore, the outer surfaces of the two air ducts are fixedly connected to power plates, the interiors of the two power plates are rotatably connected to power shafts, the ends of the two power shafts away from each other are fixedly connected to gears, and each gear is meshed with a gear ring adjacent to it.

[0011] Through the above scheme and the setting of the gears, the purpose of providing power for the rotation of the gear ring can be achieved.

[0012] Furthermore, the ends of the two power shafts that are close to each other are fixedly connected to the external motor output ends.

[0013] Through the above solution, by setting up an external motor, it is possible to provide power for the rotation of the power shaft.

[0014] Furthermore, sealing cover plates are hinged on the front and back of the chassis.

[0015] Through the above solution and the provision of the sealing cover, it is convenient for the user to open the dustproof box for inspection.

[0016] Furthermore, moisture absorbing blocks are bonded to one side of the two sealing cover plates close to the dustproof box.

[0017] Through the above scheme, by setting the moisture-absorbing block, the overall moisture-proof effect can be further improved.

[0018] Furthermore, the output directions of the two axial flow fans are both rightward.

[0019] Through the above solution, by setting the axial flow fan, the purpose of ventilating the inside of the dustproof box can be achieved.

[0020] Furthermore, a control host is installed on the upper surface of the dustproof box, and the axial fan, heating wire, external motor, humidity sensor and temperature sensor are all electrically connected to the control host.

[0021] Through the above scheme, the purpose of controlling the electrical components can be achieved by controlling the settings of the host.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The anti-condensation high-voltage vacuum circuit breaker can monitor the internal humidity and temperature of the dustproof box by means of the temperature sensor and humidity sensor. When the internal temperature is too high, the internal air circulation can be accelerated by the axial flow fan to improve the heat dissipation efficiency. When the humidity is high, the heating wire can be used in conjunction with the axial flow fan to heat the air, effectively reducing the air humidity inside the dustproof box. The moisture-absorbing block can be used to further improve the moisture-proof performance. The dustproof net can be used to intercept dust and ensure the heat dissipation efficiency of the chassis and the vacuum arc chamber. The cross cleaning plate can be used to clean the dustproof net to avoid blockage and ensure ventilation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the front view of the overall structure of this application;

[0025] Figure 2 This is the front view of the overall structure of this application;

[0026] Figure 3 It is a three-dimensional schematic diagram of the overall structure of this application;

[0027] Figure 4 This is a cross-sectional view of the overall structure of this application.

[0028] In the figure:

[0029] 1. Chassis; 2. Vacuum interrupter; 3. Dustproof box; 4. Air duct; 5. Dustproof net; 6. Axial fan; 7. Heating wire; 8. Humidity sensor; 9. Temperature sensor; 10. Gear ring; 11. Cross cleaning plate; 12. Power board; 13. Power shaft; 14. Gear; 15. Sealing cover plate; 16. Moisture absorbing block; 17. Control host. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] See also Figure 1 , Figure 2 and Figure 3The anti-condensation high-voltage vacuum circuit breaker in this embodiment includes a chassis 1, a plurality of vacuum arc extinguishing chambers 2 are installed on the upper surface of the chassis 1, a dustproof box 3 is fixedly installed on the outer surface of the chassis 1, and the left and right sides of the dustproof box 3 are fixedly connected with air ducts 4, and dustproof nets 5 are installed at the ends of the two air ducts 4 away from each other, and the ends of the two air ducts 4 away from each other are rotatably connected with gear rings 10, and the inner walls of the two gear rings 10 are fixedly connected with cross cleaning plates 11, and each cross cleaning plate 11 is in contact with the dustproof net 5 close to it. By setting the cross plate, the purpose of cleaning the filter can be achieved, and the clogging of the dustproof net 5 can be effectively avoided.

[0032] See also Figure 1 , Figure 2 and Figure 3 The outer surfaces of the two air ducts 4 are fixedly connected with a power plate 12, and the insides of the two power plates 12 are rotatably connected with a power shaft 13. The ends of the two power shafts 13 that are away from each other are fixedly connected with a gear 14, and each gear 14 is meshed with the gear ring 10 close to it. Through the setting of the gear 14, the purpose of providing power for the rotation of the gear ring 10 can be achieved. The ends of the two power shafts 13 that are close to each other are fixedly connected to the output end of the external motor. Through the setting of the external motor, the rotation of the power shaft 13 can be provided with power. An axial flow fan 6 is installed inside each air duct 4.

[0033] See also Figure 1 , Figure 2 and Figure 4 The front and back of the chassis 1 are hinged with sealing covers 15. The setting of the sealing covers 15 can facilitate the user to open the dustproof box 3 for maintenance. The two sealing covers 15 are bonded with moisture absorbing blocks 16 on one side close to the dustproof box 3. The setting of the moisture absorbing blocks 16 can further improve the overall moisture-proof effect. The output directions of the two axial flow fans 6 are both to the right. Through the setting of the axial flow fans 6, the purpose of ventilating the inside of the dustproof box 3 can be achieved.

[0034] See also Figure 1 , Figure 2 and Figure 4 A heating wire 7 is installed inside the left air duct 4, and a humidity sensor 8 and a temperature sensor 9 are installed on the inner top wall of the dustproof box 3 from left to right. A control host 17 is installed on the upper surface of the dustproof box 3. The axial flow fan 6, the heating wire 7, the external motor and the humidity sensor 8 and the temperature sensor 9 are all electrically connected to the control host 17. Through the setting of the control host 17, the purpose of controlling the electrical components can be achieved.

[0035] The anti-condensation high-voltage vacuum circuit breaker in this embodiment can monitor the internal humidity and temperature of the dustproof box 3 by means of the temperature sensor 9 and the humidity sensor 8. When the internal temperature is too high, the internal air circulation can be accelerated by the axial flow fan 6 to improve the heat dissipation efficiency. When the humidity is high, the heating wire 7 can be used in conjunction with the axial flow fan 6 to heat the air, effectively reducing the air humidity inside the dustproof box 3. The moisture-absorbing block 16 can be used to further improve the moisture-proof performance. The dustproof net 5 can be used to intercept dust and ensure the heat dissipation efficiency of the chassis 1 and the vacuum arc chamber 2. The cross cleaning plate 11 can be used to clean the dustproof net 5 to avoid blockage and ensure ventilation efficiency.

[0036] It should be noted that the control host 17 can control the rotation speed of the axial flow fan 6 to achieve the effect of adaptive heat dissipation.

[0037] The working principle of the above embodiment is as follows: when in use, the axial flow fan 6 rotates to generate wind pressure, so that the outside air is accelerated to enter the interior of the dustproof box 3. The dust in the air can be intercepted by the dustproof net 5 to avoid covering the surface of the chassis 1 and the vacuum arc chamber 2, thereby ensuring the heat dissipation efficiency. By setting the heating wire 7, the air can be heated to reduce the moisture inside the dustproof box 3. The moisture absorption block 16 can further absorb the water vapor to further ensure the dryness of the inside of the dustproof box 3.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anti-condensation high-voltage vacuum circuit breaker, comprising a chassis (1), characterized in that: A plurality of vacuum interrupter chambers (2) are mounted on the upper surface of the chassis (1); a dustproof box (3) is fixedly mounted on the outer surface of the chassis (1); both left and right side surfaces of the dustproof box (3) are fixedly connected to air ducts (4); dustproof nets (5) are mounted at ends of the two air ducts (4) that are away from each other; and an axial flow fan (6) is mounted inside each of the air ducts (4); A heating wire (7) is installed inside the air duct (4) on the left side, and a humidity sensor (8) and a temperature sensor (9) are installed on the inner top wall of the dustproof box (3) from left to right.

2. The anti-condensation high-voltage vacuum circuit breaker according to claim 1, characterized in that: The ends of the two air ducts (4) that are away from each other are both rotatably connected to a gear ring (10), the inner walls of the two gear rings (10) are both fixedly connected to a cross cleaning plate (11), and each cross cleaning plate (11) is in contact with a dustproof net (5) adjacent to it.

3. The anti-condensation high-voltage vacuum circuit breaker according to claim 1, characterized in that: The outer surfaces of the two air ducts (4) are fixedly connected to a power plate (12), the interiors of the two power plates (12) are rotatably connected to a power shaft (13), the ends of the two power shafts (13) that are away from each other are fixedly connected to a gear (14), and each gear (14) is meshingly connected to a gear ring (10) adjacent to it.

4. The anti-condensation high-voltage vacuum circuit breaker according to claim 1, characterized in that: The ends of the two power shafts (13) that are close to each other are fixedly connected to the external motor output end.

5. The anti-condensation high-voltage vacuum circuit breaker according to claim 1, characterized in that: The front and back sides of the chassis (1) are both hingedly connected with sealing cover plates (15).

6. The anti-condensation high-voltage vacuum circuit breaker according to claim 5, characterized in that: A moisture absorbing block (16) is bonded to one side of the two sealing cover plates (15) close to the dustproof box (3).

7. The anti-condensation high-voltage vacuum circuit breaker according to claim 1, characterized in that: The output directions of the two axial flow fans (6) are both rightward.

8. The anti-condensation high-voltage vacuum circuit breaker according to claim 1, characterized in that: A control host (17) is installed on the upper surface of the dustproof box (3); the axial flow fan (6), the heating wire (7), the external motor, the humidity sensor (8) and the temperature sensor (9) are all electrically connected to the control host (17).

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