ロータ、モータ及び電動車両

Japanese Patent JP7279185

B2

This application provides a rotor, a motor, and an electric vehicle, to reduce a kinetic energy loss of the motor while implementing effective heat dissipation for the rotor. The rotor includes a rotor iron core and a rotor shaft. The rotor iron core is cylindrical in shape and has a first end and a second end. A fastening plate is fastened to at least one end of the rotor iron core. A through hole and a first runner are disposed in the fastening plate. The first runner is a damping runner. An inlet of the first runner communicates with the through hole, and an outlet of the first runner is disposed on a surface of a circumferential side of the fastening plate. The rotor shaft is securely fitted in the rotor iron core, and at least one end of the rotor shaft extends to the outside of the rotor iron core from the through hole of the fastening plate. A second runner and a third runner are disposed in the rotor shaft, where the second runner is disposed along an axial direction, and the third runner is disposed along a radial direction at least at one of positions corresponding to the through hole. An inlet of the second runner is disposed at one end of the rotor shaft, and an outlet of the second runner communicates with an inlet of the third runner. An outlet of the third runner communicates with the inlet of the first runner.

Warn, Jiengan
Lee, Chuen Mean
Shie, Teen Yui

JP2021556328A

May 22, 2023

April 02, 2020

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Huawei Digital Power Technologies Company Limited

H02K9/19; H02K1/32

JP2011114987A
JP2016082628A
JP2006115650A
JP2011254574A

WO2018030218A1
CN106849509A
CN208707441U
WO2010119556A1
WO2015107679A1
US20180287464

Tadashige Ito
Tadahiko Ito
Osamu Miyazaki

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