Patent ID: 11905937
Assignee: SHANGHAI INSTITUTE OF SPACE PROPULSION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
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.