Title:
ROTARY ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/192392
Kind Code:
A1
Abstract:
In order to provide a rotary electric machine that reduces the conduction of heat to a bearing and the conduction of heat from a rotor core, both due to internal air, thereby inhibiting temperature increases of the bearing, and that improves the bearing lubrication life, the present invention is a rotary electric machine comprising: a rotor that has a shaft; a stator that is disposed opposite the rotor so as to have a prescribed gap (air gap) therebetween, and is supported by a stator frame; a bearing that rotatably supports the shaft; and an end bracket that holds the bearing, said rotary electric machine being characterized in that a heat-insulating layer that prevents the flow of heat to the bearing is provided to the machine-internal side of the end bracket.
Inventors:
HAYASAKA YASUSHI (JP)
TOKIZAKI EIICHIRO (JP)
TOKIZAKI EIICHIRO (JP)
Application Number:
PCT/JP2020/041541
Publication Date:
September 30, 2021
Filing Date:
November 06, 2020
Export Citation:
Assignee:
HITACHI INDUSTRIAL PRODUCTS LTD (JP)
International Classes:
H02K9/06; H02K5/18
Foreign References:
| JP2001103704A | 2001-04-13 | |||
| JPS5944156U | 1984-03-23 | |||
| JPH0268653U | 1990-05-24 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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