Title:
VEHICLE AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/243367
Kind Code:
A1
Abstract:
[Problem] To achieve both defrosting of an outdoor heat exchanger and heating of the interior of a cabin, and to perform both defrosting and heating sufficiently without decreasing air-conditioning efficiency. [Solution] This vehicle air-conditioning device comprises: a heat medium circuit which includes a refrigerant circuit, a plurality of flow paths through which a heat medium heated or cooled by the refrigerant circuit is circulated, and a flow path switching unit that switches the state of connection of the plurality of flow paths; and a control unit that controls the refrigerant circuit and the heat medium circuit, and controls the flow path switching unit to control the flow of the heat medium to the flow paths. The heat medium that is circulated through a high-temperature heat medium flow path is mixed with the heat medium that has passed through at least one of a plurality of heat storage units at a predetermined ratio, and the mixture heat medium is allowed to flow to an external heat exchanger.
Inventors:
SHIMIZU NOBUTAKA (JP)
Application Number:
PCT/JP2023/019678
Publication Date:
December 21, 2023
Filing Date:
May 26, 2023
Export Citation:
Assignee:
SANDEN CORP (JP)
International Classes:
B60H1/22; F25B1/00; F25B47/02
Foreign References:
| JP2014061873A | 2014-04-10 | |||
| JP2005119639A | 2005-05-12 | |||
| JP2020045068A | 2020-03-26 | |||
| CN207523396U | 2018-06-22 |
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