Permanent-magnet axial-magnetic-field brushless motor and assembling method thereof

Abstract

The invention discloses a permanent-magnet axial-magnetic-field brushless motor, which comprises a stator, a rotor, a lower end cap and an upper end cap, wherein the rotor is arranged at the center of the stator. The permanent-magnet axial-magnetic-field brushless motor is characterized in that the stator comprises a plurality of stator C-shaped iron cores and winding coils arranged on the iron cores; the rotor comprises a non-magnet-conductive rotor plate, a plurality of permanent magnets and a rotary shaft, the rotary shaft is arranged at the center of the non-magnet-conductive rotor plate, the permanent magnets are uniformly embedded on the circumference of the non-magnet-conductive rotor plate, the stator C-shaped iron cores are embedded in slots of the upper end cap and the lower end cap and circularly distributed on the circumference of the non-magnet-conductive rotor plate uniformly, and upper magnetic pole surfaces of the stator C-shaped iron cores correspond to the permanent magnets of the non-magnet-conductive rotor plate. The invention further discloses an assembling method of the motor. The permanent-magnet axial-magnetic-field brushless motor and the assembling method thereof have the advantages that electric load and magnetic load are set independently, the stator lamination iron cores are simple in manufacture, and coil magnetic loops formed by the stator windings are independent to each other. Besides, design difficulty of the motor is beneficially reduced, and manufacturing cost of the motor is reduced while performance of the motor is improved.

Description

technical field [0001] The invention relates to a motor, in particular to an axial magnetic field permanent magnet brushless motor whose electric load and magnetic load can be set independently and an assembly method. Background technique [0002] At present, the motor is a device that converts energy between electric energy and mechanical energy through electromagnetic induction. The electric load and magnetic load of the motor are one of the two most important parameters in the motor. Their size not only affects the economy of the motor, but also affects its performance. . At present, the selection of electromagnetic loads of general motors is mutually restricted, which undoubtedly reduces the selection space of electric and magnetic loads of motors, and affects the optimization of motor economy and performance. [0003] The axial field permanent magnet brushless motor has the comprehensive performance advantages of the axial field motor and the permanent magnet motor, an...

AI Technical Summary

Problems solved by technology

[0004] However, the current general-purpose axial magnetic field permanent magnet brushless motor also has the following defects: (1) The selection of the electric and magnetic loads of the motor is mutually restricted, which brings difficulties to the design, economy and performance optimization of the motor; (2) The manufacturing process of the laminated core is complicated; (3) The coil magnetic circuit composed of each winding is not independent, so the fault tolerance of the motor is low

However, the large magnetic flux leakage of transverse flux motors, the extremely complex stator core and rotor magnet structure make it difficult to be practically applied, especially the transverse flux axial magnetic field permanent magnet brushless motor, not only has not been applied but is rarely used involve

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