Title:
BATTERY TEMPERATURE CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/223634
Kind Code:
A1
Abstract:
A battery temperature control system (1) comprises a refrigeration cycle (10) and a control circuit (100). The refrigeration cycle (10) comprises a compressor (11), a first heat exchanger (12), a plurality of second heat exchangers (15), and a four-way valve (40). The four-way valve (40) is configured so as to be switchable between a forward flow state and a reverse flow state. The refrigeration cycle (10) also comprises a first pressure-reducing device (13) disposed in a flow channel (32), and second pressure-reducing devices (14) respectively disposed in a plurality of branched flow channels (34). The first pressure-reducing device (13) is a variable expansion valve of which the opening degree can be adjusted by using a command signal from the control circuit. The second pressure-reducing devices (14) are fixed orifices.
More Like This:
| WO/1988/007162 | SYSTEM FOR HEATING AND COOLING LIQUIDS |
| WO/2019/093210 | REFRIGERATING AND AIR-CONDITIONING APPARATUS |
Inventors:
YOKOI YUKI (JP)
Application Number:
PCT/JP2023/008316
Publication Date:
November 23, 2023
Filing Date:
March 06, 2023
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
F25B13/00; F25B1/00; F25B1/053; F25B5/02; F25B6/02; H01M10/613; H01M10/615; H01M10/6556; H01M10/6569
Foreign References:
| JP2020140955A | 2020-09-03 | |||
| JP2014203736A | 2014-10-27 | |||
| JPH11190560A | 1999-07-13 | |||
| JPH03127164U | 1991-12-20 | |||
| JPH01212872A | 1989-08-25 | |||
| JP2013194922A | 2013-09-30 | |||
| JPS60152873A | 1985-08-12 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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