Magnetic screen for low-power Hall thruster and fixing structure

A Hall thruster and fixed structure technology, applied in thrust reversers, magnets, magnetic objects, etc., can solve the problems of magnetic properties, performance changes, magnetic field changes, etc. of magnetic conductive materials, achieving universal convenience, simple structure, overall compact effect

Active Publication Date: 2020-12-01
BEIJING INST OF CONTROL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing solution for implementing a magnetic screen on a low-power Hall thruster is to use a magnetically permeable material for the anode, so that the anode will simultaneously assume the role of the magnetic screen, which will save some space, but the problem is that, Since the anode is located inside the ceramic channel, it is an important part invo

Method used

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  • Magnetic screen for low-power Hall thruster and fixing structure
  • Magnetic screen for low-power Hall thruster and fixing structure
  • Magnetic screen for low-power Hall thruster and fixing structure

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing description and specific embodiment:

[0033] like figure 2 Shown, a low-power Hall thruster magnetic shield and fixed structure. Contains magnetic screen 1 and magnetic screen mounting bracket 2. The magnetic screen 1 is a magnetically conductive part, and the magnetic screen mounting bracket 2 is a non-magnetically conductive part.

[0034] The material of the magnetic screen is DT4C or 1J22 soft magnetic alloy, and the material of the magnetic screen mounting bracket is austenitic stainless steel; the magnetic screen 1 is a cylindrical groove structure, such as image 3 As shown, there is an annular boss on the left end and an annular groove on the right end. The annular boss is defined as a first annular boss, which includes two cylindrical surfaces and an end surface. The two cylindrical surfaces of the first annular boss are arranged concentrically, and are respectiv...

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Abstract

The invention discloses a magnetic screen for a low-power Hall thruster and a fixing structure. The magnetic screen comprises a magnetic screen body and a magnetic screen installation support, whereinthe magnetic screen body is made of a magnetic conductive material, and the magnetic screen installation support is made of a non-magnetic-conductive austenitic stainless steel material. The two parts are matched with each other through the boss, stable and reliable connection is achieved in a fusion welding mode, and meanwhile the two parts are connected with other parts in the thruster througha flanging structure on the magnetic screen installation support. A magnetic circuit structure similar to a high-power Hall thruster is realized through an idea of integrally designing the inner magnetic screen and the outer magnetic screen. And meanwhile, the ceramic channel can be fixed on an integrated structure of the inner magnetic screen and the outer magnetic screen, so that the differencebetween the axial length of the inner coil and the axial length of the ceramic channel in the low-power Hall thruster is made up.

Description

technical field [0001] The invention relates to a magnetic shield and a fixing structure for a low-power Hall thruster, which is suitable for the Hall thruster Background technique [0002] Hall propulsion technology is the mainstream technical direction of spacecraft electric propulsion at present. The Hall thruster mainly includes hollow cathodes, discharge chambers, magnetic poles, magnetic coils, anode / gas distributors, propellant delivery pipelines and support structures; Seoul propulsion technology can increase the payload of spacecraft, reduce launch costs, and extend service life. It is an effective means to improve the efficiency and competitiveness of commercial satellites in the future. [0003] Hall thruster consists of hollow cathode, discharge chamber, magnetic pole (composed of front and rear magnetic pole plates, inner and outer magnetic cores, inner and outer magnetic screens, etc.), inner magnetic coil, outer magnetic coil, anode / gas distributor, propellant...

Claims

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Application Information

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IPC IPC(8): H01F7/02F03H1/00
CPCF03H1/0081H01F7/0221H01F7/0273
Inventor 扈延林毛威吴楠吴朋安秦宇李梁韩道满胡大为山世华庚喜慧李胜军臧娟伟吴耀武
Owner BEIJING INST OF CONTROL ENG
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