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Double-magnetic-ring micro cylindrical Hall thruster of friction welding anode

A Hall thruster and friction welding technology, which is applied in the direction of thrust reverser, machine/engine, and utilization of plasma, can solve the gap in the processing technology optimization of thruster components at the submillimeter scale, reduce product reliability and Yield rate, processing accuracy cannot be guaranteed, etc., to achieve the effect of environmental protection, energy saving and environmental protection welding machine power, and avoiding overheating failure

Active Publication Date: 2021-03-02
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

[0007] ① Difficulty in micro-processing
The connection is made by spot welding, which cannot guarantee the processing accuracy on the sub-millimeter level
In addition, traditional welding methods such as spot welding are very easy to cause deformation of the device due to factors such as high temperature and stress concentration, which in turn leads to damage or failure of the anode structure, reducing product reliability and yield
[0008] ②Low machining accuracy affects thruster performance
Therefore, the optimization of the processing technology of thruster components at the submillimeter scale is still blank

Method used

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Embodiment Construction

[0037] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0038] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0039] The invention solves the problem of difficult processing of the anode of the miniature Hall thruster; improves the machining accuracy and air tightness of the anode of the miniature Hall thruste...

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Abstract

The invention discloses a double-magnetic-ring micro cylindrical Hall thruster of a friction welding anode. The double-magnetic-ring micro cylindrical Hall thruster comprises a magnetic screen, an acceleration channel, a magnetic circuit and the anode, wherein the magnetic screen and the acceleration channel are coaxially mounted, and the magnetic circuit and the anode are wrapped on the outer side of the acceleration channel. According to the technical scheme, the problem that the anode of the micro Hall thruster is difficult to machine is solved; the anode machining precision and the air tightness of the micro Hall thruster are improved; the requirements for high magnetic field intensity and light weight required by the micro cylindrical Hall thruster can be met; and the magnetic circuitheat effect problem of the micro cylindrical Hall thruster is solved.

Description

technical field [0001] The invention belongs to the technical field of Hall thrusters, and in particular relates to a double magnetic ring miniature cylinder Hall thruster with friction welding anodes. Background technique [0002] Electric propulsion technology is a propulsion technology that uses electric energy to ionize working fluid atoms and accelerate ejection to obtain thrust. It has the characteristics of high specific impulse and long working life. It has been widely used in spacecraft orbit transfer, deep space exploration and other fields. In the context of increasing demand for micropropulsion technology, cylindrical permanent magnet Hall thrusters are a good solution for the miniaturization of electric propulsion devices. [0003] Different from the traditional Hall thruster, the cylindrical permanent magnet Hall thruster utilizes the electromagnetic hybrid potential well confinement form. Due to the magnetic mirror effect, the conduction of electrons to the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03H1/00
CPCF03H1/0081
Inventor 王伟宗胡任杰薛舒文
Owner BEIHANG UNIV
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