Title:
BATTERY COOLING SYSTEM
Document Type and Number:
Japanese Patent JP2023175299
Kind Code:
A
Abstract:
To easily keep each of refrigerants in a plurality of branch flow paths to be in a liquid state, in a battery cooling system comprising a refrigeration cycle in which a pressure reducing device and a vaporizer are arranged in each of the plurality of branch flow paths.SOLUTION: The battery cooling system comprises the refrigeration cycle, and a control circuit. The refrigeration cycle comprises a compressor, a condenser, a plurality of vaporizers arranged corresponding to a plurality of batteries, respectively, the plurality of branch flow paths, and the plurality of pressure reducing devices arranged in the plurality of branch flow paths, respectively. The control circuit determines whether the refrigerant on the downstream side further than the condenser and on the upstream sides of the plurality of pressure reducing devices is in a liquid state or not on the basis of the detection result of the pressure and the temperature of the refrigerant on the downstream side further than the condenser and on the upstream sides of the plurality of pressure reducing devices, and, when the refrigerant on the upstream sides of the plurality of pressure reducing devices is not in the liquid state, increases the rotational speed of the compressor or when the refrigerant downstream side further than the condenser and on the upstream sides of the plurality of pressure reducing devices is in the liquid state, reduces the rotational speed of the compressor.SELECTED DRAWING: Figure 3
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Inventors:
TAKEYAMA YUKIHIRO
MIZUNO YASUTOSHI
ENOSHIMA FUMINOBU
MIZUNO YASUTOSHI
ENOSHIMA FUMINOBU
Application Number:
JP2022087678A
Publication Date:
December 12, 2023
Filing Date:
May 30, 2022
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
F25B1/00; H01M10/613; H01M10/625; H01M10/633; H01M10/6557; H01M10/6568
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office