Disc-type coreless permanent magnet motor employing modular PCB stator

Abstract

The invention discloses a disc-type coreless permanent magnet motor employing a modular PCB stator. The disc-type coreless permanent magnet motor comprises a rotor and a stator, wherein the stator is formed by superimposing PCBs along the axial direction; each PCB is at least divided into two modules; the same winding coils are evenly printed on each module along the circumferential direction; the winding coils of two adjacent modules in the circumferential direction are connected in series or in parallel; and the winding coils of two adjacent PCBs in the axial direction are connected in series or in parallel. By the disc-type coreless permanent magnet motor, the production cost is reduced; the power density of the motor is improved; and the disc-type coreless permanent magnet motor is suitable for being used as the disc-type permanent magnet motors with all structure types.

Description

technical field [0001] The invention relates to a disc motor, in particular to a disc-type coreless permanent magnet motor using a modular PCB stator. Background technique [0002] The disc permanent magnet motor belongs to the axial flux motor. Compared with the traditional radial flux structure motor, its structure is simpler, and it has the advantages of small size, light weight, low loss, high efficiency, and reliable operation. . In view of these advantages of disc permanent magnet motors, this type of motor is very suitable for high-performance servo motors and high-torque direct drive motors, and has been widely used in mechatronic equipment, especially suitable for electric vehicles and renewable energy systems , Flywheel energy storage systems and other occasions that require high torque density and compact space. [0003] One of the main advantages of the disc motor is its small size and delicate structure. In order to ensure that the size of the disc motor is wi...

AI Technical Summary

Problems solved by technology

From the perspective of occupied space, if a traditional stator armature is to be used in a disc motor, the iron core needs to be slotted and wound, occupying a large space volume, and will also cause eddy current loss, cogging torque fluctuations, etc.

The iron core slotting of the winding structure of the disk motor is complicated, and the automatic off-line process is complicated. Therefore, from the perspective of mass production, the stator winding armature of the traditional disk motor is not convenient for mass production.

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