Motor, household appliance, gardening tool and vehicle

Abstract

The invention relates to a motor, a household appliance, a gardening tool and a vehicle. The motor comprises a rotor core, the rotor core comprises a rotor yoke part and a plurality of rotor tooth parts, the plurality of rotor tooth parts are uniformly connected to the outer side of the rotor yoke part along the circumferential direction, the end surface, far away from the rotor yoke part, of each rotor tooth part is a first cambered surface, the center of the first cambered surface is a first center of circle, and the center of the first cambered surface is a second center of circle; the tracks of the first circle centers of the plurality of rotor tooth parts form a circle with the center of the rotor core as the circle center; the stator iron core is arranged outside the rotor iron core in a sleeving mode, the stator iron core comprises stator teeth, pole shoe parts are formed at the ends, close to the rotor iron core, of the stator teeth, and the end faces, close to the rotor iron core, of the pole shoe parts are second cambered surfaces protruding towards the rotor iron core. The household appliance, the gardening tool or the vehicle comprises the motor. The vibration noise of the motor can be reduced.

Description

technical field [0001] The present invention relates to the technical field of motors, in particular to a motor, a household appliance, a garden tool and a vehicle. Background technique [0002] An electric motor is a device used to convert or transmit electrical energy. Among them, permanent magnet motors are widely used in almost every field of aerospace, national defense, industrial and agricultural production, and daily life. In particular, the built-in permanent magnet brushless motor has high structural strength, large salient-to-pole ratio, easy field weakening and speed expansion, and high field weakening operation efficiency. [0003] However, in the related art, some built-in permanent magnet brushless motors have relatively large vibration and noise. SUMMARY OF THE INVENTION [0004] Based on this, the present invention proposes a motor capable of reducing its vibration and noise. [0005] The present invention also provides a household appliance, which can re...

AI Technical Summary

Problems solved by technology

[0003] However, in the related art, some interior permanent magnet brushless motors have relatively large vibration noise

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