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CN-224232593-U - High-voltage vacuum circuit breaker

CN224232593UCN 224232593 UCN224232593 UCN 224232593UCN-224232593-U

Abstract

The application relates to the technical field of vacuum circuit breakers, and discloses a high-voltage vacuum circuit breaker, which comprises a base, a high-voltage vacuum circuit breaker body and a rainproof device. This high-voltage vacuum circuit breaker can make the normal outdoor use of high-voltage vacuum circuit breaker body through the rain insensitive device that sets up, the influence that the rainwater caused the high-voltage vacuum circuit breaker body has been reduced, simultaneously through dynamic ventilation and rain-proof protection, the heat dissipation and the rain-proof problem of high-voltage vacuum circuit breaker body when outdoor use have been solved, when raining, rain sensor can be with rainwater contact, simultaneous control biax motor stop work, two heat dissipation fans can stop rotating like this, two baffles will keep off the outside at two first rain-proof frames respectively, the rainwater just can not enter into the inside of rain-proof shell from both sides like this, because outdoor temperature is lower during raining, the heat dissipation capacity of the ventilative otter board of rain-proof shell top second is enough to satisfy the rainy day heat dissipation demand, rain sensor can control biax motor work when not raining.

Inventors

  • JIANG ZILE
  • DAI DAWEN
  • GAO JUNLING
  • HE HONGSEN
  • WU YUJIAO
  • ZENG PENG
  • CAO SHUHAO

Assignees

  • 上海西屋成套设备有限公司

Dates

Publication Date
20260512
Application Date
20250421

Claims (8)

  1. 1. The high-voltage vacuum circuit breaker comprises a base (1), a high-voltage vacuum circuit breaker body (2) and a rainproof device (3), and is characterized in that the rainproof device (3) comprises a rainproof shell (301) welded on the upper surface of the base (1), two sides of the rainproof shell (301) are provided with side ventilation openings (302), the inner walls of the side ventilation openings (302) are respectively and rotationally connected with a cooling fan (303), a first ventilation screen plate (304) is arranged outside the side ventilation openings (302), the outer surface of each first ventilation screen plate (304) is fixedly connected with a first rainproof frame (305), two first rainproof frames (305) are respectively and fixedly connected with two sides of the outer surface of the rainproof shell (301), the inner wall of each first rainproof frame (305) is hinged with a baffle (306), the inner top wall of the rainproof shell (301) is fixedly connected with a double-shaft motor (307), two output shaft ends of the double-shaft motor (307) and the rotating shaft ends of the two cooling fans (303) are respectively and fixedly connected with a sprocket (308), the inner part of the rainproof shell (301) is provided with a first rainproof frame (309), two sprocket chains (301) are respectively, two transmission chains (309) are respectively embedded on the top of the two rainproof frames (301), the rain-proof shell is characterized in that a rain-proof eave (311) is fixedly connected to the upper surface of the rain-proof shell (301), a rain sensor (312) is fixedly connected to the top end of the rain-proof eave (311), and the rain sensor (312) is electrically connected with the double-shaft motor (307).
  2. 2. The high voltage vacuum circuit breaker according to claim 1, wherein the top of the rain-proof housing (301) is fixedly connected with a ventilation hood (313), the second ventilation screen (310) is located inside the ventilation hood (313), and the ventilation hood (313) is located below the rain-proof eave (311).
  3. 3. The high-voltage vacuum circuit breaker according to claim 1, wherein the inner top wall of the rainproof shell (301) is fixedly connected with an air duct (314), and the shape of the air duct (314) is matched with the shape of the second ventilation screen (310).
  4. 4. The high voltage vacuum circuit breaker according to claim 3, wherein the bottom end of the air duct (314) is fixedly connected with a dehumidifying plate (315).
  5. 5. The high-voltage vacuum circuit breaker according to claim 1, wherein the back of the rainproof shell (301) is provided with uniformly distributed wire outlets (316), the wire outlets (316) are matched with the high-voltage vacuum circuit breaker body (2), the back of the rainproof shell (301) is fixedly connected with a second rainproof frame (317), and the second rainproof frame (317) is located above the wire outlets (316).
  6. 6. The high voltage vacuum circuit breaker according to claim 1, wherein a protective door (318) is installed on the front surface of the rainproof shell (301), and a handle is fixedly connected to the outer surface of the protective door (318).
  7. 7. The high-voltage vacuum circuit breaker according to claim 1, wherein the back of the rainproof shell (301) is fixedly connected with a radiating fin (319).
  8. 8. The high-voltage vacuum circuit breaker according to claim 1, wherein the four corners of the high-voltage vacuum circuit breaker body (2) are provided with connecting bases (4), the high-voltage vacuum circuit breaker body (2) is positioned on the upper surface of the base (1) through the four connecting bases (4), and the four corners of the base (1) are fixedly connected with positioning bases (5).

Description

High-voltage vacuum circuit breaker Technical Field The application relates to the technical field of vacuum circuit breakers, in particular to a high-voltage vacuum circuit breaker. Background The vacuum circuit breaker has the advantages of small volume, light weight, suitability for frequent operation and no maintenance of arc extinction, is widely applied to power distribution networks, is an indoor power distribution device in a three-phase alternating current system of 3-10 kV and 50Hz, can be used for protecting and controlling electrical equipment in industrial and mining enterprises, power plants and substations, is particularly suitable for use places requiring oilless maintenance and frequent operation, and can be configured in centrally installed switchgear, double-layer cabinets and fixed cabinets for controlling and protecting high-voltage electrical equipment. The prior patent (bulletin number: CN 220543801U) discloses. The utility model provides a high-voltage vacuum circuit breaker, includes the base, the bottom of base inner chamber is provided with the cushion, the top of cushion is provided with the fixed block, the draw-in groove has all been seted up to the both sides of fixed block, the top of fixed block extends to the top of base and fixedly connected with vacuum circuit breaker main part, the equal fixedly connected with shell in top of base inner chamber both sides, the outside fixedly connected with electric cylinder of shell inner chamber, the inboard fixedly connected with movable plate of electric cylinder, the inboard fixedly connected with movable column of movable plate, the inboard of movable column extends to the inboard of shell and fixedly connected with fixture block. The utility model provides a high-voltage vacuum circuit breaker, which is characterized in that a base is firstly arranged at a designated position through an assembly block, and when a vacuum circuit breaker main body needs to be disassembled, an electric cylinder drives a moving plate to move outwards, and the moving plate drives a pulley to slide in a limiting groove. When the device in the above-mentioned reference is used outdoors, it is directly exposed to the environment, which may be affected by rainwater, and if no protective measures are taken, it may cause problems such as reduced insulation performance of the device, rust of mechanical parts, short circuit of electrical components, etc., in order to solve the above-mentioned problems, a high voltage vacuum circuit breaker is proposed. Disclosure of utility model Aiming at the defects of the prior art, the application provides the high-voltage vacuum circuit breaker, and the problems of heat dissipation and rain prevention of the high-voltage vacuum circuit breaker in outdoor use are well solved by combining dynamic ventilation and rain protection. The high-voltage vacuum circuit breaker comprises a base, a high-voltage vacuum circuit breaker body and a rainproof device, wherein the rainproof device comprises a rainproof shell welded on the upper surface of the base, two sides of the rainproof shell are provided with side ventilation openings, the inner wall of each side ventilation opening is rotationally connected with a cooling fan, a first ventilation screen plate is arranged outside each side ventilation opening, the outer surface of each first ventilation screen plate is fixedly connected with a first rainproof frame, the two first rainproof frames are respectively and fixedly connected with two sides of the outer surface of the rainproof shell, the inner wall of each first rainproof frame is hinged with a baffle, the inner top wall of the rainproof shell is fixedly connected with a double-shaft motor, two output shaft ends of the double-shaft motor and rotating shaft ends of the two cooling fans are fixedly connected with chain wheels, two chains are respectively connected with the inside of the rainproof shell in a transmission mode, the top of the rainproof shell is inlaid with a second ventilation screen plate, the upper surface of the rainproof shell is fixedly connected with a rainproof eave, the inner wall of the rainproof sensor is fixedly connected with the double-shaft eave, and the rainproof sensor is fixedly connected with the rainproof eave. Through the scheme, the high-voltage vacuum circuit breaker body can be normally used outdoors through the rain-proof device, the influence of rainwater on the high-voltage vacuum circuit breaker body is reduced, meanwhile, through dynamic ventilation and rain-proof protection, the heat dissipation and rain-proof problem of the high-voltage vacuum circuit breaker body in outdoor use are solved, when raining, the rainwater sensor can be contacted with rainwater, the dual-shaft motor is controlled to stop working simultaneously, two heat dissipation fans can stop rotating, two baffles can be respectively blocked outside two first rain-proof frames, rainwater can not enter the inside of a r