Title:
MAGNETIC POLE STRUCTURE FOR HALL THRUSTER
Document Type and Number:
WIPO Patent Application WO/2022/142776
Kind Code:
A1
Abstract:
A magnetic pole structure for a Hall thruster. The magnetic pole structure comprises wide-envelope type outer magnetic pole components (1), a magnetic bridge (2), a pagoda-shaped inner magnetic pole component (3), an upper plate (4) and a bottom plate (7), wherein a plurality of wide-envelope type outer magnetic pole components are symmetrically distributed on the outer edge of the thruster with the pagoda-shaped inner magnetic pole component at the center to enclose a semi-open outer magnetic structure; the magnetic bridge is located between the wide-envelope type outer magnetic pole components and the pagoda-shaped inner magnetic pole component; the bottom plate is tightly attached to the bottoms of the wide-envelope type outer magnetic pole components and the pagoda-shaped inner magnetic pole component; and the upper plate is tightly attached to the upper portions of the wide-envelope type outer magnetic pole components. An outer magnetic pole expands in the circumferential direction, magnetic lines of force are guided into the upper plate and the bottom plate from a wider area to be dispersed on the surfaces of the upper plate and the bottom plate, and therefore, a wide-envelope type outer magnetic pole has a better magnetic field distribution uniformity.
Inventors:
ZHAO ZHEN (CN)
CHENG JIABING (CN)
KANG XIAOLU (CN)
WANG YANAN (CN)
TIAN LEICHAO (CN)
ZHANG ZHIYUAN (CN)
JIA QINGQING (CN)
QIAO CAIXIA (CN)
HANG GUANRONG (CN)
CHENG JIABING (CN)
KANG XIAOLU (CN)
WANG YANAN (CN)
TIAN LEICHAO (CN)
ZHANG ZHIYUAN (CN)
JIA QINGQING (CN)
QIAO CAIXIA (CN)
HANG GUANRONG (CN)
Application Number:
PCT/CN2021/130580
Publication Date:
July 07, 2022
Filing Date:
November 15, 2021
Export Citation:
Assignee:
SHANGHAI INST SPACE PROPULSION (CN)
International Classes:
F03H1/00
Foreign References:
| CN112696330A | 2021-04-23 | |||
| RU2204053C2 | 2003-05-10 | |||
| US6075321A | 2000-06-13 | |||
| US20060186837A1 | 2006-08-24 | |||
| CN111622912A | 2020-09-04 | |||
| CN105003409A | 2015-10-28 | |||
| CN104632565A | 2015-05-20 | |||
| US6208080B1 | 2001-03-27 |
Attorney, Agent or Firm:
DUAN & DUAN LAW FIRM (CN)
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