Title:
BATTERY COOLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/210049
Kind Code:
A1
Abstract:
A battery cooling system (1) comprises: a refrigeration cycle (10); and a control circuit (100). The refrigeration cycle (10) is provided with: a compressor (11); a condenser (12); a plurality of evaporators (15) respectively arranged in correspondence to a plurality of batteries (2); a plurality of branch channels (33, 34); and a plurality of pressure reduction devices (14) arranged in the branch channels (33, 34). The condenser (12) exchanges heat between a refrigerant supplied from the compressor (1) and outside air present around the condenser (12). The control circuit (100) stores, in advance, data defining the correlation among the outside air temperature, the battery temperature, and the target rotational speed of the compressor which can maintain the refrigerant in the branch channels (33, 34) in a liquid state. The control circuit (100) determines the target rotational speed corresponding to the result of detecting the outside air temperature and the battery temperature by referring to the data, and controls the rotational speed of the compressor to the target rotational speed.
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Inventors:
TAKEYAMA YUKIHIRO (JP)
MIZUNO YASUTOSHI (JP)
ENOKIJIMA FUMINOBU (JP)
MIZUNO YASUTOSHI (JP)
ENOKIJIMA FUMINOBU (JP)
Application Number:
PCT/JP2022/045112
Publication Date:
November 02, 2023
Filing Date:
December 07, 2022
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
F25B5/02; F25B1/00; H01M10/613; H01M10/625; H01M10/633; H01M10/6569; H05K7/20
Foreign References:
| JP2020184427A | 2020-11-12 | |||
| JP2018177083A | 2018-11-15 | |||
| JP2017096564A | 2017-06-01 | |||
| JP2020147115A | 2020-09-17 | |||
| JP2021037857A | 2021-03-11 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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