Permanent magnet hall thruster ignition device

• Main Author: LONG JIANFEI
• Format: Patent
• Language: Chinese; English
• Published: 21.05.2019
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDEDFOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention discloses a permanent magnet hall thruster ignition device comprises an outer ceramic ring, an inner ceramic ring, an anode assembly, magnetic steel, a magnetic conductive base, a magnetic steel sleeve, excitation coils and a magnetic conductive ferrule; the magnetic conductive ferrule is installed on the outer wall of the magnetic steel in a sleeved manner; the magnetic conductive ferrule and the magnetic steel are installed in an annular positioning ring on the magnetic conductive base; and the excitation coils are installed between the inner wall of a magnetic steel sleeve andthe outer wall of the magnetic conductive ferrule through positioning of the annular positioning ring. In the ignition process, the excitation coils, a power supply of which is supplied by a cathodeheating power supply, generate a magnetic field with a direction opposite to a direction of an inherent magnetic field of the magnetic steel, and the intensity of the magnetic field at an outlet of adischarge channel is weaken