Double-stator conical adjustable air gap permanent magnet motor

Abstract

The invention relates to a double-stator conical adjustable air gap permanent magnet motor, which relates to the field of motors and solves the problem that the prior permanent magnet motor with a conventional structure has low efficiency. An outer stator core, a rotor and an inner stator core are coaxially sleeved together from outside to inside in turn, equal inside air gaps and outer air gaps are formed between the stator core and the rotor, both the outer surface of the inner stator core and the inner surface of the rotor are conical surfaces or cylindrical surfaces, and both the outer surface of the rotor and the inner surface of the outer stator core are conical surfaces or cylindrical surfaces; and a rotor slideway is arranged on an annular opening of a rotor output shaft of a supporting rack, the other rotor slideway is arranged at the end position of an inner rotor of the supporting rack, the rotor output shaft passes through a rotor slideway and is fixed on the supporting rack, the end part of the rotor passes through the other rotor slideway and is fixed in the supporting rack, and the rotor also comprises an air gap adjusting mechanism which is arranged between the end part of the rotor and the other rotor slideway. The double-stator conical adjustable air gap permanent magnet motor has the advantages of good adjusting performance, wide speed-expanding range and sufficient torque.

Description

technical field

[0001] The invention relates to the field of motors, in particular to a double-stator conical permanent magnet motor with adjustable air gap. Background technique

[0002] The permanent magnet motor with traditional structure mostly achieves the goal of field-weakening speed-up by adjusting the stator current. Although the field-weakening speed expansion can be achieved, the efficiency of the motor decreases due to the increase of the stator current and the direct-axis armature current, which limits the speed range of the system. further broaden. Contents of the invention

[0003] In order to solve the problem of reduced efficiency of the existing traditional structure permanent magnet motor, the invention proposes a double-stator conical permanent magnet motor with adjustable air gap.

[0004] The invention includes a stator, a rotor, a support frame and two rotor slideways; the stator includes an outer stator core, an inner stator core and stator winding...

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