Title:
VEHICULAR AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/049636
Kind Code:
A1
Abstract:
Provided is a vehicular air conditioning device that can preemptively avoid unnecessary defrosting of an outside heat exchanger. A refrigerant discharged from a compressor 2 is made to release heat in a radiator 4, and, after the refrigerant that has released heat has been decompressed, a heating mode is executed in which the interior of a vehicle is heated by causing heat to be absorbed by an outside heat exchanger 7. A control device determines the state of progress of frost formation on the outside heat exchanger, and if defrosting has been determined to be unnecessary, causes defrosting to be performed on the outside heat exchanger once prescribed defrosting permission conditions have been met; and if prescribed natural defrosting conditions are met before defrosting is performed after defrosting of the outside heat exchanger has been determined to be necessary, the control device does not cause defrosting to be performed on the outside heat exchanger.
Inventors:
YAMASHITA KOHEI (JP)
MIYAKOSHI RYO (JP)
MIYAKOSHI RYO (JP)
Application Number:
PCT/JP2018/030589
Publication Date:
March 14, 2019
Filing Date:
August 13, 2018
Export Citation:
Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP (JP)
International Classes:
B60H1/22; F24F11/41; F25B47/02
Foreign References:
| JP2014088153A | 2014-05-15 | |||
| JP2010111222A | 2010-05-20 | |||
| US4439995A | 1984-04-03 | |||
| JP2012176660A | 2012-09-13 | |||
| JPS6111539A | 1986-01-18 | |||
| US5257506A | 1993-11-02 | |||
| JPS61184351A | 1986-08-18 |
Download PDF: