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1. (WO2018180924) ROTOR AND MOTOR

Pub. No.:    WO/2018/180924    International Application No.:    PCT/JP2018/011515
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 23 00:59:59 CET 2018
IPC: H02K 1/27
Applicants: NIDEC CORPORATION
日本電産株式会社
Inventors: YAMASHITA Yoshiaki
山下 佳明
ATARASHI Takao
新子 剛央
Title: ROTOR AND MOTOR
Abstract:
One embodiment of the rotor of the present invention is provided with: a shaft disposed along the central axis extending in a vertical direction; a rotor core fixed to the shaft; a magnet positioned outside the rotor core in the radial direction; a rotor cover for housing the rotor core and the magnet; and a resin portion for fixing the rotor cover and the magnet to each other. The rotor cover has: a cylindrical portion extending along the axial direction and enclosing the rotor core and the magnet from the outside in the radial direction; and a bottom plate portion extending from the lower end of the cylindrical portion to the inside in the radial direction. The resin portion has: a filled portion positioned inside the cylindrical portion in the radial direction and filled between the cylindrical portion and the magnet; a retaining portion, at least part of which is positioned on the lower side of the bottom plate portion; and a connection portion overlapping the bottom plate portion in the axial direction. The filled portion and the retaining portion are connected to each other via the connection portion.