Title:
BATTERY COOLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/233726
Kind Code:
A1
Abstract:
This battery cooling system comprises a refrigeration cycle and a control circuit. The refrigeration cycle comprises a compressor, a condenser, a plurality of evaporators disposed corresponding to each of a plurality of batteries, a plurality of branch flow passages, and a plurality of pressure reducing devices disposed respectively in the plurality of branch flow passages. The control circuit determines whether a refrigerant downstream of the condenser and upstream of the plurality of pressure reducing devices is in a liquid state on the basis of detection results of a pressure and temperature of the refrigerant downstream of the condenser and upstream of the plurality of pressure reducing devices, and if the refrigerant upstream of the plurality of pressure reducing devices is not in a liquid state, increases a rotational speed of the compressor, and if it is determined that the refrigerant downstream of the condenser and upstream of the plurality of pressure reducing devices is in a liquid state, decreases the rotational speed of the compressor.
Inventors:
TAKEYAMA YUKIHIRO (JP)
MIZUNO YASUTOSHI (JP)
ENOKIJIMA FUMINOBU (JP)
MIZUNO YASUTOSHI (JP)
ENOKIJIMA FUMINOBU (JP)
Application Number:
PCT/JP2023/005698
Publication Date:
December 07, 2023
Filing Date:
February 17, 2023
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
F25B1/00; F25B5/02; H01M10/613; H01M10/625; H01M10/633; H01M10/6557; H01M10/6569
Domestic Patent References:
| WO2020175325A1 | 2020-09-03 |
Foreign References:
| JP2010127563A | 2010-06-10 | |||
| JPH01200159A | 1989-08-11 | |||
| US20020124585A1 | 2002-09-12 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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