COOLING SYSTEM FOR ROTARY ELECTRIC MACHINE

WIPO Patent Application WO/2024/013875

A1

The purpose of the present invention is to provide a cooling system for a rotary electric machine in which the flow rate ratio between a coolant supplied to a stator and a coolant supplied to a rotor can be changed and the cooling effect of the rotary electric machine can be improved. This cooling system 1 for a rotary electric machine 1 according to the present invention comprises a coolant flow path 7 that supplies a coolant, a switching mechanism 3 that switches the mode of the coolant flow path 7, and a pump 4 that pumps the coolant to the coolant flow path 7. The coolant flow path 7 has a first coolant flow path section 71 that supplies the coolant to a core 21A of a stator 21, and a second coolant flow path section 72 that supplies the coolant to a rotor 22. The switching mechanism 3 is configured to achieve: a first mode in which the coolant is supplied to the first coolant flow path section 71 and the coolant is not supplied to the second coolant flow path section 72; and a second mode which causes the downstream of the first coolant flow path section 71 and the upstream of the second coolant flow path section 72 to communicate.

GOTO HIDEAKI (JP)
ITAYA TAKAKI (JP)

PCT/JP2022/027547

January 18, 2024

July 13, 2022

Click for automatic bibliography generation  

HITACHI ASTEMO LTD (JP)

H02K9/19

JP2008125235A	2008-05-29
JP2003250247A	2003-09-05
JP2021090267A	2021-06-10
JP2016086495A	2016-05-19
CN113078776A	2021-07-06
JP2014110705A	2014-06-12
JP2019186989A	2019-10-24

POLAIRE I.P.C. (JP)

View/Download PDF      PDF Help

Previous Patent: VEHICLE DRIVING SUPPORT METHOD AND DRIVING SUPPORT DEVICE

Next Patent: MULTI-CORE OPTICAL FIBER, AND DESIGN METHOD