Title:
VEHICLE AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/145019
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a vehicle air-conditioning device such that it is possible to cool a heat medium flowing through a heat medium circuit with a refrigerant flowing through a refrigerant circuit without requiring a separate expansion valve. This vehicle air-conditioning device comprises: an external heat exchanger (22) that functions as a heat absorber; and a heat medium heat exchanger (23) that is connected to the refrigerant outflow side of the heat absorber (14) and exchanges heat between a refrigerant flowing through a refrigerant circuit (20) and a heat medium flowing through a heat medium circuit. Thus, the heat medium in the heat medium circuit (30) can be cooled by the refrigerant flowing through the refrigerant circuit (20) without the need for an expansion valve dedicated to the heat medium heat exchanger (23), and therefore it is possible to achieve a reduction in manufacturing cost by reducing the number of components.
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Inventors:
ISHIZEKI TETSUYA (JP)
SHIGETA MEGUMI (JP)
HARAGUCHI TOMONORI (JP)
SHIMIZU NOBUTAKA (JP)
SHIGETA MEGUMI (JP)
HARAGUCHI TOMONORI (JP)
SHIMIZU NOBUTAKA (JP)
Application Number:
PCT/JP2019/048668
Publication Date:
July 16, 2020
Filing Date:
December 12, 2019
Export Citation:
Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP (JP)
International Classes:
B60H1/22; B60H1/32; B60L1/00; B60L3/00; B60K1/04
Domestic Patent References:
| WO2011016264A1 | 2011-02-10 |
Foreign References:
| JP2010280377A | 2010-12-16 | |||
| JP2013199251A | 2013-10-03 | |||
| JP2004182203A | 2004-07-02 |
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