VEHICULAR HEAT MANAGEMENT SYSTEM

WIPO Patent Application WO/2023/286347

A1

This vehicular heat management system comprises: a first refrigerant circuit 1 that is for air conditioning of a vehicle interior and that has a first refrigerant/inside air heat exchanger 12 which exchanges heat between a first refrigerant and indoor air; a coolant circuit 2 that cools an electrical component 23 with a coolant; a second refrigerant circuit 3 that is for battery temperature regulation and that has a second refrigerant/outside air heat exchanger 39 which exchanges heat between a second refrigerant and outside air; a first refrigerant/coolant heat exchanger 4 that exchanges heat between the first refrigerant and the coolant; and a second refrigerant/coolant heat exchanger 5 that exchanges heat between the second refrigerant and the coolant. In a two-stage heat pump mode, the second refrigerant of the second refrigerant circuit 3 absorbs heat from the outside air in the second refrigerant/outside air heat exchanger 39 and releases heat to the coolant of the coolant circuit 2 in the second refrigerant/coolant heat exchanger 5, and the first refrigerant of the first refrigerant circuit 1 absorbs heat from the coolant of the coolant circuit 2 in the first refrigerant/coolant heat exchanger 4 and releases heat to the indoor air in the first refrigerant/inside air heat exchanger 12.

ENOKIJIMA FUMINOBU (JP)
FUKANUMA TETSUHIKO (JP)
YOKOI YUKI (JP)

PCT/JP2022/010964

January 19, 2023

March 11, 2022

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TOYOTA JIDOSHOKKI KK (JP)

F25B1/00; B60H1/22; H01M10/613; H01M10/625; H01M10/633; H01M10/6568; H01M10/663

DE102016112094A1	2018-01-04
US20190168578A1	2019-06-06
JP2016028935A	2016-03-03
CN110422027A	2019-11-08

SATO Tsutomu et al. (JP)

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