Vacuum arc-extinguishing chamber capable of being used in high-pressure environment
A vacuum interrupter and high air pressure technology, applied in high voltage air circuit breakers, high voltage/high current switches, electrical components, etc. Effect
Inactive Publication Date: 2021-08-13
XI AN JIAOTONG UNIV
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Problems solved by technology
[0003] The purpose of the present invention is to provide a vacuum interrupter that can be used in a high-pressure environment to solve the problem of low mechanical life of the bellows in a vacuum interrupter in a high-pressure environment.
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[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0013] Such as figure 1 As shown, the present invention is a vacuum interrupter that can be used in a high-pressure environment. A cylindrical side wall is integrated and vertically arranged outside the movable end cover 1 of the vacuum interrupter. The spring 2, brass ring 4 and sealing ring 3 on the outer circumference of the movable guide rod 6 of the arc extinguishing chamber are compacted with the pressure plate 5, so that the movable guide rod 6 of the vacuum interrupter, the bellows 7 of the vacuum interrupter, and the vacuum interrupter The movable end cover 1 and the sealing ring 3 form a closed space, which effectively isolates the influence of the high-pressure gas outside the interrupter on the bellows 7 of the vacuum interrupter.
[0014] The spring 2 is placed in the cylindrical side wall of the movable end cover 1 of t...
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The invention discloses a vacuum arc-extinguishing chamber capable of being used in a high-pressure environment. A cylindrical side wall is integrally and vertically arranged outside a movable end cover of the vacuum arc-extinguishing chamber, and a spring, a brass ring and a sealing ring which are sequentially wound on the outer periphery of a movable guide rod of the arc-extinguishing chamber are arranged in the cylindrical side wall and are compacted by a pressing plate, the vacuum arc-extinguishing chamber movable guide rod, a vacuum arc-extinguishing chamber corrugated pipe, the vacuum arc-extinguishing chamber movable end cover and the sealing ring form a closed space, so that the influence of high-pressure gas outside the arc-extinguishing chamber on the vacuum arc-extinguishing chamber corrugated pipe is effectively isolated. The service life of the corrugated pipe when the arc extinguish chamber works in a high-pressure environment can be prolonged, and the vacuum arc-extinguishing chamber has the advantages of simple structure, low cost and the like.
Description
technical field [0001] The invention belongs to the field of electric switches, and in particular relates to a vacuum interrupter, which can be used to improve the service life of the vacuum interrupter in a high-pressure environment. Background technique [0002] The vacuum interrupter is the arc extinguishing part when the vacuum circuit breaker cuts off the short-circuit current, which is directly related to the breaking performance of the vacuum circuit breaker. In order to improve the external insulation capability of the vacuum interrupter, the vacuum interrupter is often placed in a high-pressure environment. However, opening and closing operations in a high-pressure environment will significantly reduce the mechanical life of the bellows of the vacuum interrupter, which cannot meet the use requirements. At present, there is no effective means to solve this problem. Contents of the invention [0003] The purpose of the present invention is to provide a vacuum inte...
Claims
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IPC IPC(8): H01H33/664
CPCH01H33/664
Inventor 王建华张冉管臣刘志远耿英三姚晓飞
Owner XI AN JIAOTONG UNIV