Four-electrode self-triggering steepening gas switch

Abstract

The invention discloses a four-electrode self-triggering steepening gas switch which is characterized in that an upper electrode is arranged at the upper part of an insulating sleeve, an upper intermediate electrode sleeves the upper electrode, an upper insulating flange is arranged between the upper electrode and the upper intermediate electrode, and sealing gaskets are respectively arranged between the upper insulating flange and the upper electrode and between the upper insulating flange and the upper intermediate electrode; a lower electrode corresponding to the upper electrode is arranged at the lower part of the insulating sleeve, a lower intermediate electrode sleeves the lower electrode, a lower insulating flange is arranged between the lower electrode and the lower intermediate electrode, and sealing gaskets are respectively arranged between the lower insulating flange and the lower intermediate electrode and between the lower insulating flange and the lower electrode; and an air inlet is formed in one side of the insulating sleeve, and an air outlet is formed in the other side correspondingly. According to the four-electrode self-triggering steepening gas switch, the gap of the two intermediate electrodes is firstly broken down to further assist the breakdown of a main gap, the breakdown between the electrodes does not ablate the internal insulating material, the switch can operate in a repetition frequency mode, the switch is stable in working property and long in service life, the structure is compact, and the conduction inductance is low.

Description

technical field [0001] The invention belongs to the technical field of gas switches, in particular to a four-electrode self-triggering steepening gas switch. Background technique [0002] The gas switch is a key component connecting the capacitive energy storage device and the load in the pulse power source, and its working characteristics determine the output performance of the pulse power source. The development of high-stability, high-repetition-frequency pulse power sources requires gas switches to have stable breakdown performance and repeat-frequency operation capabilities. Generally, switches adopt two operating modes: external triggering and self-triggering steepening. Among them, the external trigger mode adds an external trigger unit to make it precisely cooperate with the pulse power source. At a certain moment, the external trigger unit outputs a trigger pulse to realize the gas switch conduction and the output of the pulse power source. It increases the difficu...

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Problems solved by technology

[0003] The existing self-triggering steepening gas switch mostly adopts multi-gap structure or Trigatron type structure. The multi-gap structure self-triggering steepening gas switch has a long gap and a large overall inductance, which slows down the output frontier of the pulse power source and affects the output performance; Trigatron type The structure self-triggering steepens the switch, and the discharge of the trigger gap will cause the ablation of the insulating material between the trigger electrode and the main electrode, and the stability of the pre-ionization of the switch will be reduced, thereby affecting the stability of the self-breakdown voltage of the switch

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