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A plasma jet device based on the electric explosion of a microcavity metal wire

A technology of plasma and jetting devices, which is applied in the field of plasma jetting devices, can solve the problems of limiting the ability to conduct gas switches, limited electrical conductivity and jetting height, and low electrical conductivity, so as to achieve lower trigger voltage, reliable leakage, The effect of reducing the degree of burning

Active Publication Date: 2020-12-25
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Higher plasma height and conductivity can increase the reliability of triggering, while the plasmas generated by conventional microcavity spark discharge injection and capillary discharge injection are all gas ionized plasmas, and their conductivity is relatively low, and The plasma ejected at high speed is easily decelerated by the resistance of the atmosphere gas, resulting in its limited conductivity and ejection height, which limits its ability to trigger the gas switch

Method used

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  • A plasma jet device based on the electric explosion of a microcavity metal wire
  • A plasma jet device based on the electric explosion of a microcavity metal wire
  • A plasma jet device based on the electric explosion of a microcavity metal wire

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Embodiment Construction

[0033] Attached below Figure 1 to Figure 3 The technical scheme of the present disclosure is described in detail with the examples.

[0034] In one embodiment, such as figure 1 As shown, the present disclosure provides a plasma injection device based on microcavity metal wire electric explosion, including: a ground electrode 1, a wire explosion chamber 2 and a trigger electrode 5; wherein, the wire explosion chamber 2 is located at the ground electrode 1 and between the trigger electrode 5; the center of the surface of the ground electrode 1 is provided with a cylindrical groove, and the wire explosion cavity 2 is fixed with the ground electrode 1 through the cylindrical groove, and the wire explosion cavity 2 is fixed. A cylindrical microcavity is formed, and the microcavity communicates with the through hole arranged at the center of the cylindrical groove; a metal wire 4 is arranged in the microcavity, and the two ends of the metal wire 4 are connected to the ground elect...

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Abstract

The invention discloses a plasma spraying device based on micro-cavity metal wire electrical explosion. The plasma spraying device comprises a ground electrode, a wire explosion cavity, a metal wire,a trigger electrode, an insulation protection piece and a fixing device. The plasma spraying device based on micro-cavity metal wire electrical explosion can obtain high-density and high-conductivityplasmas through electric explosion of the metal wires, and can better solve the problem that a gas switch is difficult to trigger due to large distance.

Description

technical field [0001] The disclosure belongs to the technical field of high-voltage electrical appliances and pulse power, and in particular relates to a plasma injection device based on microcavity metal wire electric explosion. Background technique [0002] In the field of high-voltage electrical appliances and pulse power technology, gas switches are one of the most common types of switches and have extremely wide applications. When the working coefficient of the gas switch is very low, it is difficult to ensure the reliable triggering of the switch through conventional triggering methods such as electric field distortion triggering and ultraviolet pre-ionization triggering. The trigger conduction requirement under extremely low operating coefficient is one of the trigger methods with great potential. [0003] The key to the triggering of plasma spraying lies in the height and conductivity of the plasma generated by the plasma spraying device. Higher plasma height and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H1/26
CPCH05H1/26
Inventor 李晓昂吕玉芳郜淦孙昊晨李杰张乔根
Owner XI AN JIAOTONG UNIV
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