A permanent magnet stator modular motor

Abstract

The invention discloses a permanent magnet stator modularized motor, which is composed of a stator core, a stator winding, a rotor core, a permanent magnet, a motor shaft and a casing. Six rotor poles are uniformly distributed on the punching sheet of the rotor core, and the stator core is divided into 4 fan-shaped stator modules are evenly distributed on the inner wall of the casing in the circumferential direction, and a tangentially magnetized rectangular permanent magnet is arranged on each stator core; when the stator core and rotor core are stamped, the rotor poles can extend radially into the stator core In the rectangular stator slot, the rotor core punch and the stator core punch can be obtained at the same time after stamping. Compared with the existing double-salient pole motor and its manufacturing process, the present invention punches out the punching plate for the nesting of the stator core and the rotor core, which eliminates the waste of the plate material at the slot between the stator poles, improves the utilization rate of the plate material, and reduces the Reduce the cost, but also reduce the quality of the motor.

Description

technical field [0001] The invention relates to a permanent magnet stator modular motor, which belongs to the technical field of special motors. Background technique [0002] Double salient motor is a new type of brushless DC motor. According to the excitation method, there are mainly permanent magnet, electric excitation, and hybrid excitation double salient motors. In recent years, doubly salient pole motors in which the stator poles and rotor poles are salient pole structures have been widely studied. Doubly salient pole motors can be divided into doubly salient permanent magnet synchronous motors and switched reluctance motors according to whether there are permanent magnets. Compared with the switched reluctance motor, the pole permanent magnet synchronous motor only adds permanent magnets to the stator, so that a higher output torque can be obtained; [0003] Since the armature reaction flux linkage in the permanent magnet doubly salient pole motor is much smaller tha...

AI Technical Summary

Problems solved by technology

This patent only reduces the waste of plates at the leftovers and reduces the cost, but fails to make full use of the punched sheets

[0009] The existing stator and rotor stamping design process cannot fundamentally make full use of the stamping material, so it is necessary to propose a new stamping design scheme to achieve full utilization of the plate during stamping

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