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Novel composite contact vacuum arc-extinguishing chamber and vacuum circuit breaker with same

A technology of vacuum interrupter and composite contact, which is applied in the direction of high-voltage air circuit breakers, circuits, electrical components, etc., can solve the problems of lack of magnetic field structure design, etc., and achieve the effect of reducing contact resistance and increasing rated current

Active Publication Date: 2014-02-19
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In order to solve the above-mentioned problems in the prior art, the object of the present invention is to provide a new composite contact vacuum interrupter and a vacuum circuit breaker for its application, which solves the lack of magnetic field structure in the existing vacuum interrupter contact design design problem

Method used

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  • Novel composite contact vacuum arc-extinguishing chamber and vacuum circuit breaker with same
  • Novel composite contact vacuum arc-extinguishing chamber and vacuum circuit breaker with same
  • Novel composite contact vacuum arc-extinguishing chamber and vacuum circuit breaker with same

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 2As shown, a novel composite contact vacuum interrupter of the present invention includes a static side structure part, a moving side structure part and a shell structure. The shell structure consists of an arc extinguishing chamber shell 119, an upper side cover plate 106 of the arc extinguishing chamber, The lower side cover plate 121 of the arc extinguishing chamber is composed, and the main shielding cover 118 is arranged inside the outer shell 119 of the arc extinguishing chamber. The conductive rod of the static side structure part is composed of the static side main conductive rod 103 and the static side arc current conductive rod 104 . The static-side main conductive rod 103 is inside the static-side arcing current conductive rod 104, and an upper conductive guide ring 102 and a lower conductive guide r...

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Abstract

The invention discloses a novel composite contact vacuum arc-extinguishing chamber and a vacuum circuit breaker with the same. The novel composite contact vacuum arc-extinguishing chamber comprises a static side structure portion, a movable side structure portion and a shell structure. The static side structure portion comprises a static side arcing current conducting rod and a static side main conducting rod which is arranged in the static side arcing current conducting rod and is in clearance fit with the static side arcing current conducting rod. A static side arcing magnetic field contact and a static side annular arcing-resisting contact material are sequentially welded at the lower end of the static side arcing current conducting rod. A static side conducting contact is welded at the lower end of the static side main conducting rod. In the arcing process, the static side conducting contact is located inside the static side arcing magnetic field contact all the time, the static side main conducting rod is connected with the static side arcing current conducting rod through a static side small-diameter corrugated pipe, the static side arcing current conducting rod is connected with a cover plate on the upper side of the arc-extinguishing chamber through a static side large-diameter corrugated pipe. A static side compression spring is installed inside the static side large-diameter corrugated pipe. According to the novel composite contact vacuum arc-extinguishing chamber, the problem that the magnetic structural design does not exist in the existing vacuum arc-extinguishing chamber contact design is solved.

Description

technical field [0001] The invention belongs to the technical field of high-voltage and high-current vacuum circuit breakers, and in particular relates to a novel composite contact vacuum interrupter and a vacuum circuit breaker applied thereto. Background technique [0002] With the development of the power system, the application of vacuum circuit breakers in the whole power system has also developed rapidly. However, in the process of development, the requirements for vacuum circuit breakers are also constantly improving. In some specific occasions and some special application fields, such as large rated current requirements and harsh breaking conditions, traditional vacuum circuit breakers are difficult to meet the actual needs, so it is necessary to develop vacuum interrupters with special structures and related vacuum interrupters. circuit breakers to meet various needs. [0003] At present, in the traditional vacuum interrupter, the contacts with complex structures ...

Claims

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Application Information

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IPC IPC(8): H01H33/664H01H33/66
Inventor 刘志远马慧王建华耿英三闫静王振兴
Owner XI AN JIAOTONG UNIV
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