Pole-changing rotor structure and motor

Abstract

The invention discloses a pole-changing rotor structure and a motor, belongs to the technical field of the motor and is designed for solving problems that a rotor core mold needs to be remanufacturedwhen the number of poles of an existing rotor needs to be changed, and the like. The pole-changing rotor structure comprises a rotor core and at least two kinds of magnetic shoes, wherein lengths of the magnetic shoes are different, the rotor core is provided with positioning protrusions, and at least a part of the magnetic shoes are provided with positioning grooves matched with the positioning protrusions. The pole-changing rotor structure is advantaged in that the pole-changing rotor structure comprise the rotor core and the at least two kinds of magnetic shoes with different lengths, whenthe number of poles needs to be changed, only the magnetic shoes with different lengths need to be installed according to needs, matching of the rotor core and the magnetic shoes with different numbers of poles is achieved, and then a slot pole matching scheme that the same stator is matched with different rotors is achieved; and the rotor core does not need to be replace or remanufacture, so theresearch and development period of the rotor is shortened, and cost of repeatedly processing dies is saved.

Description

Technical field [0001] The present invention relates to the technical field of motors, and in particular to a pole-changing rotor structure and a motor including the pole-changing rotor structure. Background technique [0002] Permanent magnet synchronous motor is a widely used motor, the main structure includes stator and rotor. Among them, such as figure 1 As shown, the rotor includes a rotor core 1'and a plurality of magnetic tiles 2'mounted on the rotor core 1', figure 1 The rotor core 1'on the center left and the magnetic shoe 2'on the center are assembled to obtain the rotor structure on the right. [0003] The number of rotor poles of the existing motor rotor core is fixed. When the number of poles needs to be changed, the rotor core mold needs to be re-opened, which causes waste of resources and increases the design cost and processing cost; the mold development cycle is long, leading to development The cycle becomes longer, seriously affecting the development progress. S...

AI Technical Summary

Problems solved by technology

[0003] The number of rotor poles of the existing motor rotor core is fixed. When the number of poles needs to be changed, the rotor core mold needs to be re-opened, which causes waste of resources and increases the design cost and processing cost; the mold development cycle is long, resulting in development The cycle becomes longer, which seriously affects the development progress

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