Magnetism-gathering transverse magnetic field motor with claw-pole type stator

Abstract

The invention belongs to the field of permanent-magnetic motors, and provides a magnetism-gathering transverse magnetic field motor with a claw-pole type stator. The motor comprises a stator fixing shaft and a motor rotating shaft, wherein a shell of the motor and the motor rotating shaft are connected with the stator fixing shaft through a bearing; a stator bracket is arranged on the fixing shaft; a stator core is connected with the stator bracket; the stator core is provided with holes evenly distributed along the circumferential direction; a stator claw tooth is arranged on the stator core; a stator winding is arranged in the middle of the claw tooth; a rotor structure is arranged in an inner cavity of the shell; a rotor core is provided with a radial hole and a circumferential hole; a radial permanent magnet is arranged in the radial hole of the rotor core; a circumferential permanent magnet is arranged in the circumferential square hole of the rotor core; an air gap exists between the stator core and the rotor core; and stator teeth among phases m of the motor differ from each other by 1 / m polar distance. As a rotor of the motor adopts a three-surface magnetism-gathering structure, the motor has the advantages of reducing core loss and increasing the magnetic flux density of the air gap, along with simple structure and easy manufacture.

Description

technical field [0001] The invention belongs to the field of permanent magnet motors, in particular to an outer rotor transverse magnetic field permanent magnet motor of a magnetic concentration rotor. Background technique [0002] The existing transverse magnetic field permanent magnet motor stators mainly adopt U-shape, C-shape and E-shape. The rotor with U-shaped stator structure is divided into two types: flat plate type and magnetic accumulation type: the flat plate type has a simple structure, but the air gap magnetic density is low and the performance is poor; the magnetic accumulation type structure has a higher air gap magnetic density and better performance , but the stator structure generally adopts the structure of inner and outer double stators, and the structure is relatively complicated, which increases the manufacturing cost and difficulty. The rotors with C-shaped and E-shaped stator structures generally adopt a magnetism-concentrating structure: C-shaped a...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical problem that the air gap structure of the transverse magnetic field permanent magnet motor in the prior art has a high magnetic density and excellent performance, but the stator structure is relatively complicated, which weakens the mechanical strength of the motor, the present invention proposes the following technical solutions:

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