Title:
AIR-CONDITIONING DEVICE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/255111
Kind Code:
A1
Abstract:
This air-conditioning device for a vehicle has a refrigeration cycle (10) and a control unit (70). The refrigeration cycle comprises a compressor (11), a heating unit (35), an outdoor-air heat exchanger unit (29X), a first expansion valve (20a), second expansion valves (20b, 20c), and evaporators (23, 24). The control unit comprises: a compression control unit (70d) that performs control when heating of an air-conditioning target space and condensation heat defrosting are to be performed concurrently; and a decompression control unit (70e). The compression control unit achieves, by controlling the actuation of the compressor, either one of a refrigerant temperature or pressure that is required by a heat exchanger for heating and a refrigerant temperature or pressure that is required by an outdoor-air heat exchanger. The decompression control unit achieves, by controlling the actuation of the first expansion valve, the other of the refrigerant temperature or pressure that is required by the heat exchanger for heating and the refrigerant temperature or pressure that is required by the outdoor-air heat exchanger.
Inventors:
NOMURA TOMOYUKI (JP)
Application Number:
PCT/JP2022/020763
Publication Date:
December 08, 2022
Filing Date:
May 19, 2022
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60H1/22; F25B47/02
Foreign References:
| JP2013203221A | 2013-10-07 | |||
| JP2015209036A | 2015-11-24 | |||
| JP2021046071A | 2021-03-25 |
Attorney, Agent or Firm:
KAI-SEI PATENT FIRM (JP)
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