Permanent magnet auxiliary synchronized reluctance motor rotor and manufacturing method thereof and motor

Abstract

The invention provides a permanent magnet auxiliary synchronized reluctance motor rotor, a manufacturing method thereof and a motor with the motor rotor. The permanent magnet auxiliary synchronized reluctance motor rotor comprises a rotor iron core and permanent magnets, a plurality of groups of magnetic pole units are arranged in the rotor iron core, the permanent magnets are arranged in the magnetic pole units, each group of magnetic pole units comprises multilayer permanent magnet grooves which are distributed in a radial direction and used for accommodating the permanent magnets, magnetizers are arranged among the multilayer permanent magnet grooves, and materials of the magnetizers are different from those of the rotor iron core. The motor rotor, the manufacturing method thereof and the motor with the motor rotor have the advantages that a soft magnetic material and a press powder material are combined, the iron core can be configured according to different requirements, the machining difficulty is reduced, and the whole efficiency of the permanent magnet auxiliary synchronized reluctance motor is improved.

Description

technical field [0001] The invention relates to the field of motors, in particular to a permanent magnet assisted synchronous reluctance motor rotor, a manufacturing method thereof and a motor with the motor rotor. Background technique [0002] As a combination of permanent magnet synchronous motor and synchronous reluctance motor, permanent magnet assisted synchronous reluctance motor combines the advantages of the two motors, and has a high reluctance torque utilization rate. With the assistance of permanent magnet torque, the motor Efficiency can be achieved, so more and more attention has been paid to it. [0003] The permanent magnet assisted synchronous reluctance motor in the prior art has a basic structure consisting of an iron core made of soft magnetic materials, winding coils and permanent magnets. Influenced by the precision of the process, the iron core made by this method has large punching burrs, small punching insulation resistance, thinning of the teeth of ...

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Problems solved by technology

[0004] The present invention provides a permanent magnet assisted synchronous reluctance motor rotor and a manufacturing method thereof, as well as a motor having the motor rotor, so as to overcome the problems in the prior art that the rotor structure affects the performance of the motor and is difficult to process

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