BATTERY TEMPERATURE CONTROL DEVICE

Japanese Patent JP2023183630

A

To suppress variation in temperature of each battery.SOLUTION: A refrigeration cycle 11 further includes a partition wall 74 for performing heat-exchange between refrigerant flowing in a first main flow path 52 and refrigerant flowing in a second main flow path 62. In a battery cooling mode, liquefied refrigerant is distributed from the first main flow path 52 to each of first individual flow paths 51, so that the liquefied refrigerant is easily distributed to each battery heat-exchanger 15 evenly. In a battery warm-up mode, refrigerant which has been fallen into a gas-liquid two-phase state is distributed from the second main flow path 62 to each of second individual flow paths 61, so that the refrigerant in the gas-liquid two-phase state is distributed to each battery heat-exchanger 15. Since the temperature difference between the refrigerant flowing in each battery heat-exchanger 15 and each battery 20 is maintained, each battery 20 is warmed up uniformly as a whole.SELECTED DRAWING: Figure 1

JP5380321	Lithium ion secondary battery
WO/2023/041297	INTERFACE FOR COOLING PLATE COOLANT MANIFOLD
JP2024510854	Batteries, power consumption equipment, battery manufacturing methods and equipment

ONISHI TORU
ASANO KOSUKE

JP2022097239A

December 28, 2023

June 16, 2022

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TOYOTA IND CORP

H01M10/617; F25B5/02; F28F9/26; H01M10/613; H01M10/615; H01M10/625; H01M10/6556; H01M10/6569

Makoto Onda
Hironobu Onda

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