Macro-arc cathode discharge micro electric boosting module

Abstract

The invention discloses a macro-arc cathode discharge micro electric boosting module which comprises a power supply, an inductance coil, a control switch, a diverter, a cathode, an anode and an electromagnetic coil, wherein the power supply is used for providing direct current which is measured by using the diverter; the inductance coil is charged with power when the control switch is closed; an instantaneous high voltage is generated to the outside when the control switch is opened; if an external circuit is communicated, current is provided to the outside till the electric energy stored in the inductance coil is completely released; the cathode and the anode can discharge power and are broken and communicated when being subjected to the instantaneous high voltage, the surface of the cathode can be burnt and plasma is generated; and under the action of magnetic lines of the electromagnetic coil, the plasma is focused and ejected out at a high speed, and thus boosting force can be generated. A solid metal is adopted as a propellant, so that the problem that a micro boosting module is relatively large in size can be solved; due to cooperation of the electromagnetic coil and the control switch, and residual current discharge of an electric arc, the problem that the power of the inductance coil is consumed can be solved; and as the plasma on the surface of the cathode of a booster is focused by the electromagnetic coil, the specific impulse of the booster can be improved.

Description

Technical field [0001] The invention relates to a micro-arc cathode discharge micro-electric propulsion module, which is especially suitable for the on-orbit operation of micro-nano satellites and belongs to the technical field of micro-electric propulsion modules. Background technique [0002] With the development of micro-nano technology, small satellites are becoming more and more miniaturized. Compared with traditional large satellites, micro-nano satellites are small in size, light in mass, and have a small moment of inertia. They require less thrust for orbit and attitude control and require high precision. , Which is generally in the order of millinew or even to the order of micron; in addition, the power supply that micro-nano satellites can provide is not high. Therefore, the chemical propulsion devices and electric propulsion devices used on traditional large satellites are not suitable for micro-nano satellites. [0003] Micro-nano satellites generally operate in lower ...

AI Technical Summary

Problems solved by technology

[0008] The technical problem solved by the invention is: to overcome the deficiencies of the prior art, the invention provides a micro-arc cathode discharge miniature electric propulsion module, by using solid metal as the propellant, the special propellant storage and supply module is removed, and the size is greatly reduced. The size of the micro-propulsion module is reduced, and the problem of large volume of the traditional micro-propulsion module is solved; through the cooperation of the electromagnetic coil and the control switch and the effective use of the residual current of the arc discharge, the power consumption of the micro-propulsion module is effectively reduced, and the problem of the inductance coil is solved. The problem of waste of power consumption; the plasma on the cathode surface of the thruster is focused by the electromagnetic coil, which improves the specific impulse of the thruster, significantly improves the total impulse of the micro-propulsion module, and overcomes the problem of low total impulse of the traditional micro-propulsion module

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