ELECTRIC MOTOR ROTOR, DRIVE ELECTRIC MOTOR AND ELECTRIC VEHICLE

WIPO Patent Application WO/2022/252046

A1

Provided in the present application are an electric motor rotor, a drive electric motor and an electric vehicle, which relate to the technical field of electric motors. In the electric motor rotor, a rotor iron core provided with at least two protruding components is designed, at least two pieces of magnetic steel and at least two sheets are provided in a groove formed between the at least two protruding components, and a rotor pressing plate is then coupled to the rotor iron core, so that the plurality of pieces of magnetic steel and the plurality of sheets are each fixed in grooves in the rotor iron core, such that the reliability of the electric motor rotor in an axial direction is realized. Moreover, by superimposing an SMC sheet on the magnetic steel, the eddy current loss of a permanent magnet can be effectively reduced; and each magnetic steel is respectively provided in the groove formed between the protruding components, and the SMC sheet is added, such that the salient pole ratio can be increased, the magneto-resistance torque proportion can be increased, and the amount of the magnetic steel used can be reduced.

GENG WEIWEI (CN)
WU CHAOQIANG (CN)
CHEN JINHUA (CN)
ZHOU ZHAO (CN)

PCT/CN2021/097371

December 08, 2022

May 31, 2021

Click for automatic bibliography generation  

HUAWEI DIGITAL POWER TECH CO LTD (CN)
UNIV NANJING SCI & TECH (CN)

H02K1/27; H02K1/30; H02K21/24

CN203289217U	2013-11-13
CN110945751A	2020-03-31
CN111509883A	2020-08-07
CN210927238U	2020-07-03
CN111010008A	2020-04-14

E-TONE INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)

View/Download PDF      PDF Help

Previous Patent: TIMING SYNCHRONIZATION MECHANISM

Next Patent: CELL HANDOVER METHOD AND APPARATUS, AND TERMINAL DEVICE