Dual coaxial high voltage pulse capacitor and integrated device of capacitor and switch
A high-voltage pulse and capacitor technology, which is applied to fixed capacitor electrodes, fixed capacitor dielectrics, fixed capacitor shells/packages, etc., can solve the problems of poor structure compactness, low working voltage, low energy storage density, etc., to improve working voltage, The effect of small structural inductance and small volume
Active Publication Date: 2017-11-14
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of existing high-voltage pulse capacitors such as low operating voltage, low energy storage density, large internal inductance, and poor structural compactness, and adopt a double-coaxial structure to achieve high energy storage The dense liquid medium is used as an energy storage medium to provide a high-voltage pulse capacitor with compact structure, small volume, high withstand voltage, small internal inductance, and long life, and the integrated design of the switch chamber and the capacitor facilitates the application of the present invention in gas discharge, Marx The use of generators and other fields
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[0016] The present invention will be further described below in conjunction with drawings and embodiments.
[0017] figure 1For the background technology [J.B.Ennis, R.Hartsock and A.J.McPhee, "Recent Developments in High Energy Density Metallized Electrode Capacitor Technology, Proceedings of the 1997 IEEE Colloquium on Pulsed Power, London, UK, 1997: 1-3] hidden foil capacitor structure diagram Schematic diagram of the structure, mainly composed of aluminum foil electrode 1, insulating medium 2, and lead sheet 3. In order to improve the capacitor, it is necessary to increase the length and width of the aluminum foil electrode 1 and insulating medium 2, which often results in a large internal inductance of the capacitor, and in order to achieve high voltage operation , multiple units need to be used in series, which further increases the internal inductance. At the same time, because the relative dielectric constant of the insulating medium 2 is small, the volume is large;
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The invention relates to a high-voltage pulse capacitor, in particular to a high-voltage pulse capacitor, capacitor and switch integrated device with a dual coaxial-type structure. The high-voltage pulse capacitor, capacitor and switch integrated device mainly comprises a high-voltage electrode, a ground electrode, a high-voltage electrode insulating plate, a high-voltage electrode installation nut, a liquid insulating medium, a switch ground electrode, a switch high-voltage electrode and a switch insulating shell, wherein the high-voltage electrode and the ground electrode are coaxially arranged; a first capacitor is formed between the outer surface of the high-voltage electrode and the inner surface of the ground electrode shell; a second capacitor is formed between the inner surface of the high-voltage electrode and the outer surface of an inner cylinder of the ground electrode; a third capacitor is formed by a radial plane of the high-voltage electrode and the radial plane of the ground electrode; and the high-voltage electrode and the ground electrode form the dual coaxial-type structure. The switch ground electrode, the switch high-voltage electrode and the switch insulating shell are installed by the internal space of the ground electrode to form a high-voltage gas switch; and capacitor and switch integration is achieved, so that the application requirements of compact and miniaturized high-power pulse device can be met.
Description
technical field [0001] The invention relates to a high-voltage pulse capacitor in the field of high-power pulse technology, in particular to a high-voltage pulse capacitor adopting a double-coaxial structure and an integrated device of capacitor and switch, which can be used in Marx generators, gas discharge and other fields. Background technique [0002] High-power pulse technology is an electrophysical technology that quickly compresses, converts or directly releases "slowly" stored electric or magnetic field energy with high density to the load. The energy storage determines the volume and The key to weight, and the main function of high-voltage pulse capacitors is for energy storage, requiring high-power pulse capacitors to be able to withstand high voltage and have the ability to discharge large pulse currents. In recent years, high-power pulse technology based on high-voltage pulse capacitors has been well applied in many fields such as high-power microwave, high-power...
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IPC IPC(8): H01G4/012H01G4/04H01G4/224H01G4/40H01T14/00
CPCH01G4/012H01G4/04H01G4/224H01G4/40H01T14/00
Inventor 程新兵杨建华潘子龙
Owner NAT UNIV OF DEFENSE TECH