Superhigh voltage-resistance air passage electric insulator for electric thruster

Abstract

The invention relates to a superhigh voltage-resistance air passage electric insulator for an electric thruster and belongs to the electric vacuum insulation technology field. The superhigh voltage-resistance air passage electric insulator mainly comprises an air inlet pipe, a flange, a shielding cover, a main insulator, ceramic particles, a gland, an isolation net and an air outlet pipe, wherein the ceramic particles are filled in the main insulator, two ends of the main insulator are fixedly connected with the flange, the gland is arranged in the main insulator and is fixedly connected with the flange, the isolation net is arranged between the gland and the flange and is pressed by the gland into a center hole of the flange, the shielding cover is fixedly connected with the flange, and an outlet end of the air inlet pipe and an inlet end of the air outlet pipe are arranged in the center hole of the flange and are fixedly connected with the flange. The air passage electric insulator has advantages of excellent voltage-resistance capability and excellent mechanics structure strength and can completely satisfy engineering application requirements.

Description

Technical field [0001] The invention relates to a gas circuit electric insulator, in particular to an ultra-high pressure gas circuit electric insulator used for an electric thruster, and belongs to the technical field of electric vacuum insulation. Background technique [0002] The existing gas circuit electrical insulator mainly adopts the principle of multi-stage voltage division, but its withstand voltage capability is low. In order to improve the withstand voltage of the multi-stage partial pressure gas circuit electrical insulator, it is necessary to increase the number of insulation stages, but this will increase its axial distance and make its mechanical resistance very poor, making it impossible to realize engineering applications . Summary of the invention [0003] Aiming at the problem of insufficient pressure resistance of existing gas circuit electrical insulators, the purpose of the present invention is to provide an ultra-high pressure gas circuit electrical insula...

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Problems solved by technology

[0003] Aiming at the problem of insufficient withstand voltage capability of existing electrical insulators for gas circuits, the purpose of the present invention is to provide an electrical insulator with ultra-high withstand voltage for electric thrusters. The electrical insulator for gas circuits is filled with tiny ceramic particles , which greatly increases the circulation distance of the working medium gas, and significantly increases its minimum breakdown voltage, so as to achieve the purpose of improving the withstand voltage capability

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