Multichannel gas spark switch based on ultraviolet preionization technology

A gas spark switch and pre-ionization technology, which is applied to spark gaps, spark gaps, electrical components and other directions with auxiliary triggering devices, can solve the problems of single discharge channel, electrode ablation switch inductance, etc., to simplify the structure and reduce the electrode The effect of ablation, increasing air pressure

Inactive Publication Date: 2013-01-30
YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Aiming at the problems that the existing multi-channel gas spark switch bears high voltage and high current, the discharge channel is single, the electrode abla

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  • Multichannel gas spark switch based on ultraviolet preionization technology

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Embodiment Construction

[0018] Hereinafter, the realization of the multi-channel gas switch based on the ultraviolet pre-ionization technology of the present invention will be described in detail with reference to the accompanying drawings.

[0019] like figure 1 As shown, a multi-channel gas spark switch based on ultraviolet pre-ionization technology, the present invention includes a main electrode I1 and its electrode head 12 in the shape of a circular flange, a main electrode II2 and a corresponding electrode head 13, and a correspondingly arranged circular flange shape. The circular cylinder switch housing 3 connected with the fixing bolt 9; the main electrode I1 is provided with a main electrode connecting rod 11; the main electrode II2 is provided with a middle through hole 14, and a nylon sleeve 6 is sleeved in the middle through hole 14, A ceramic sleeve 5 is fixed in the nylon sleeve 6, and a needle electrode 4 is arranged in the ceramic sleeve 5; the lower end of the needle electrode 4 is f...

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Abstract

The invention relates to a multichannel gas spark switch based on an ultraviolet preionization technology. The multichannel gas spark switch comprises a main electrode I (1) and an electrode tip (12) thereof as well as a main electrode II (2) and a corresponding electrode tip (13) which are correspondingly arranged, and circular cylinder switch shells (3), wherein the main electrode I (1) is shaped as a circular flange plate, and the circular cylinder switch shells (3) are connected by fixing bolts (9). The multichannel gas spark switch disclosed by the invention has the advantages that due to adoption of structural design of the trigger electrodes, UV (ultraviolet) ionization can be generated under the triggering condition, so that richer initiating electrons are distributed in a main gap, the breakdown delay of the spark gap is shortened, and ring electrodes are induced to generate parallel-connection discharge of multiple channels to achieve the effects of reducing the on-off inductance, reducing the electrode ablation and prolonging the service life of the switch; and the switch is of an compact coaxial structure on the whole, and an extremely tiny gap is reserved between the main electrodes, so that the air pressure inside the switch is increased, the breakdown delay of the gap is effectively reduced, and meanwhile, the spark inductance is reduced, therefore the structure of a trigger pulse generator is simplified.

Description

technical field [0001] The invention relates to the field of high-voltage gas spark switch manufacturing, in particular to a multi-channel gas spark switch based on ultraviolet pre-ionization technology. Background technique [0002] The gas spark switch is the core component of the pulse power device. Its performance directly affects the output characteristics of the pulse power source. With the development of pulse power devices towards higher power and high repetition frequency, gas spark switches are required to have the characteristics of high withstand voltage, low inductance and jitter, and long life. When the gas switching gap forms multiple parallel discharge channels, it not only significantly reduces the current density of each discharge channel, reduces the ablation of the electrodes by the switching arc, prolongs the switching life, but also reduces the switching inductance and on-resistance . Therefore, multi-channel gas spark switches have begun to be widel...

Claims

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Application Information

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IPC IPC(8): H01T1/22H01T2/02H01T19/04
Inventor 陈云杨卓谭向宇王科赵现平王达达彭晶张少泉马仪陈磊徐肖伟陈晓云马宏明文斌曾宬李璟瑞
Owner YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST
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