Title:
VEHICLE BATTERY COOLING DEVICE AND VEHICLE AIR CONDITIONER EQUIPPED THEREWITH
Document Type and Number:
WIPO Patent Application WO/2021/039614
Kind Code:
A1
Abstract:
[Problem] To provide a vehicle battery cooling device capable of eliminating or suppressing uneven cooling of a vehicle battery and improving oil returnability. [Solution] A vehicle battery cooling device 61 comprises a compressor 2, an external heat exchanger 7, a battery heat exchanger 64 provided to be in a thermally conductive state with a battery 55, an auxiliary expansion valve 73, and an air conditioning controller 32. The air conditioning controller 32 decompresses a refrigerant that has radiated heat in the external heat exchanger by the auxiliary expansion valve, and then causes the battery heat exchanger to absorb heat. The valve opening of the auxiliary expansion valve is controlled in the direction such that the refrigerant discharged from the battery heat exchanger does not have an overheating degree SHbout on the basis of the output of an outlet sensor that detects the temperature and pressure of the refrigerant discharged from the battery heat exchanger.
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Inventors:
ISHIZEKI TETSUYA (JP)
Application Number:
PCT/JP2020/031567
Publication Date:
March 04, 2021
Filing Date:
August 21, 2020
Export Citation:
Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP (JP)
International Classes:
B60L1/00; B60H1/32; B60L50/60; B60L58/26
Foreign References:
| JP2018140720A | 2018-09-13 | |||
| JP2014160594A | 2014-09-04 | |||
| JP2017094987A | 2017-06-01 |
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