Title:
AIR CONDITIONING DEVICE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/064946
Kind Code:
A1
Abstract:
The present invention suppresses accumulation of a refrigerant in an outdoor heat exchanger while efficiently utilizing heat from a temperature regulation subject for heating the inside of a vehicle interior. Provided is an air conditioning device for a vehicle, the device comprising: a refrigerant circuit that includes a compressor for compressing a refrigerant, a heating unit for heating air to be distributed to a space to be air-conditioned, and an outdoor heat exchanger for absorbing heat of the refrigerant; an equipment temperature regulating circuit that includes a heat exchanger which is for a temperature regulation subject mounted to a vehicle and which is for adjusting the temperature of the temperature regulation subject by using the refrigerant; and a control device that controls the refrigerant circuit and the equipment temperature regulating circuit. The control device includes, in a heating operation for heating the inside of the vehicle interior by using the heating unit, at least a temperature regulation subject heat-absorption/heating mode and a combination heating mode in which the refrigerant, which is discharged from the compressor and from which heat is radiated at the heating unit, is subjected to heat absorption in the heat exchanger for the temperature regulation subject and in the outdoor heat exchanger and the heat exchanger for the temperature regulation subject, respectively. During the heating operation in the combination heating mode, the control device performs control so as to assess the operation state in which the refrigerant is likely to be accumulated in the outdoor heat exchanger, and to execute the heating operation by changing the mode to the temperature regulation subject heat absorption/heating mode.
Inventors:
SHIBAOKA YOSHIKI (JP)
YAMASHITA KOUHEI (JP)
ZHANG HONGMING (JP)
OKAMOTO YOSHIYUKI (JP)
MATSUMURA TAKAYUKI (JP)
MATSUZAKI KODAI (JP)
YAMASHITA KOUHEI (JP)
ZHANG HONGMING (JP)
OKAMOTO YOSHIYUKI (JP)
MATSUMURA TAKAYUKI (JP)
MATSUZAKI KODAI (JP)
Application Number:
PCT/JP2021/031287
Publication Date:
March 31, 2022
Filing Date:
August 26, 2021
Export Citation:
Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP (JP)
International Classes:
B60H1/22
Domestic Patent References:
| WO2020066719A1 | 2020-04-02 | |||
| WO2019021710A1 | 2019-01-31 |
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