US 11,905,937 B2
Magnetic pole structure for hall thruster
Zhen Zhao, Shanghai (CN); Jiabing Cheng, Shanghai (CN); Xiaolu Kang, Shanghai (CN); Yanan Wang, Shanghai (CN); Leichao Tian, Shanghai (CN); Zhiyuan Zhang, Shanghai (CN); Qingqing Jia, Shanghai (CN); Caixia Qiao, Shanghai (CN); and Guanrong Hang, Shanghai (CN)
Assigned to SHANGHAI INSTITUTE OF SPACE PROPULSION, Shanghai (CN)
Appl. No. 18/029,382
Filed by SHANGHAI INSTITUTE OF SPACE PROPULSION, Shanghai (CN)
PCT Filed Nov. 15, 2021, PCT No. PCT/CN2021/130580
§ 371(c)(1), (2) Date Mar. 30, 2023,
PCT Pub. No. WO2022/142776, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 202011587160.2 (CN), filed on Dec. 28, 2020.
Prior Publication US 2023/0358216 A1, Nov. 9, 2023
Int. Cl. F03H 1/00 (2006.01)
CPC F03H 1/0068 (2013.01) [F03H 1/0006 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A magnetic pole structure for a Hall thruster, comprising: a plurality of wide-envelope outer magnetic pole components, a magnetic bridge, a pagoda-shaped inner magnetic pole component, a top plate, and a bottom plate, wherein the plurality of wide-envelope outer magnetic pole components are arranged on an outer edge of the Hall thruster and symmetrical about the pagoda-shaped inner magnetic pole component, and the plurality of wide-envelope outer magnetic pole components enclose a semi-open structure;
the magnetic bridge is located between each of the plurality of wide-envelope outer magnetic pole components and the pagoda-shaped inner magnetic pole component, and is connected with a magnetic circuit formed by each of the plurality of wide-envelope outer magnetic pole components and the pagoda-shaped inner magnetic pole component;
the bottom plate is attached to a bottom part of each of the plurality of wide-envelope outer magnetic pole components and a bottom part of the pagoda-shaped inner magnetic pole component;
the top plate is attached to an upper part of each of the plurality of wide-envelope outer magnetic pole components, and the top plate is provided with a central through hole; and
the magnetic bridge and the pagoda-shaped inner magnetic pole component are connected with an outer magnetic circuit through the central through hole; and
the pagoda-shaped inner magnetic pole component is composed of a pagoda-shaped inner magnetic pole, an upper inner magnetic coil, and a lower inner magnetic coil;
the pagoda-shaped inner magnetic pole comprises an upper part and a lower part, and the upper part has a diameter less than a diameter of the lower part;
the upper part of the pagoda-shaped inner magnetic pole is wound by the upper inner magnetic coil; and
the lower part of the pagoda-shaped inner magnetic pole is wound by the lower inner magnetic coil.