Multi-channel gas spark switch

A gas spark switch and multi-channel technology, applied in the direction of spark gap, spark gap parts, spark gap with auxiliary trigger device, etc., can solve the problem of random discharge point position, difficult to trigger work, large change in the number of discharge channels, etc. problem, achieve the effect of reducing spark inductance, reducing discharge delay and prolonging life

Active Publication Date: 2013-09-25
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantages of these two methods are that the number of discharge channels varies greatly, the posit...

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Embodiment Construction

[0019] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Figure 1A and 1B It is a schematic diagram of an embodiment of the multi-channel gas spark switch according to the present invention. As shown in the figure: the multi-channel gas spark switch includes: upper shell 1, lower shell 2, 2 main electrodes 5, 2 main electrode connecting ...

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Abstract

The invention discloses a multi-channel gas spark switch. Two main electrodes (5) are arranged inside a shell body, a trigger electrode (6) is arranged between the two main electrodes (5), screw holes are evenly distributed in the side face of the trigger electrode (6), a blind hole with a smaller hole diameter is formed in the front end of the trigger electrode (6), a needle electrode is arranged in the blind hole, and spraying holes which are communicated with the bottom of the blind hole are formed in an end face of the trigger electrode (6). The inner portion of the blind hole is used as a plasma spraying cavity, the needle electrode and the trigger electrode (6) in the plasma spraying cavity discharge to generate plasma in the plasma spraying cavity, and the plasma can enter one spark gap through the spraying holes. According to the multi-channel gas spark switch, the plasma spraying technology is used as a gas switch trigger method, discharge delayed time is reduced, multi-channel discharge is caused to occur on the peripheries of the plurality of spraying holes, spark inductance caused by discharge is reduced, the service life of the switch is prolonged, the switch can work under a low working voltage condition, and the high trigger characteristics are ensured.

Description

technical field [0001] The invention relates to the technical field of gas spark switches, in particular to a multi-channel gas spark switch. Background technique [0002] The gas spark switch is the core equipment in the pulse power device. The gas spark switch can not only transmit high power, but also has low inductance and low loss. Its conduction is that when the applied voltage exceeds a certain critical voltage, strong ionization occurs in the gas, and the current increases sharply. At the same time, the ionization process in the gas It can be maintained by itself only by the effect of the electric field, and no longer needs external ionization factors. If the electric field is relatively uniform, the gap will be broken down, and then glow discharge, spark discharge or arc discharge will be formed according to the air pressure, external circuit impedance and other conditions. Dry and clean air, nitrogen, sulfur hexafluoride, etc. are often used as insulating gases. ...

Claims

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Application Information

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IPC IPC(8): H01T2/00H01T1/20
Inventor 铁维昊李志兵张乔根孙岗刘善红
Owner STATE GRID CORP OF CHINA
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