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1. (WO2018123987) ROTOR AND ROTARY ELECTRIC MACHINE EQUIPPED WITH ROTOR

Pub. No.:    WO/2018/123987    International Application No.:    PCT/JP2017/046474
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Tue Dec 26 00:59:59 CET 2017
IPC: H02K 1/27
H02K 1/24
H02K 19/22
H02K 21/14
Applicants: DENSO CORPORATION
株式会社デンソー
Inventors: MAEKAWA, Takeo
前川 武雄
Title: ROTOR AND ROTARY ELECTRIC MACHINE EQUIPPED WITH ROTOR
Abstract:
The rotor is provided with: a field core having multiple claw-like magnetic pole parts; tubular members arranged on the radial outer side of the claw-like magnetic pole parts so as to cover the outer peripheries of the claw-like magnetic pole parts; field windings wound on the field core; and multiple magnet units each having a permanent magnet disposed between a circumferentially adjacent pair of claw-like magnetic pole parts and a magnet holding part for holding the permanent magnet. The magnet holding part of each magnet unit has: a circumferential movement restriction part for restricting the permanent magnet from moving in a circumferential direction; a first radial movement restriction part for restricting the permanent magnet from moving inward in a radial direction; and a second radial movement restriction part disposed in a space formed between circumferential ends of the outer peripheries of the pair of claw-like magnetic pole parts and the inner periphery of the tubular member, thereby restricting the magnet holding part from moving inward in the radial direction. In addition, each magnet unit has a tubular member contact part in contact with the inner periphery of the tubular member.