Title:
VEHICLE AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/026690
Kind Code:
A1
Abstract:
Provided is a vehicle air conditioning device that can prevent damage to a compressor due to liquid compression when defrosting an outdoor heat exchanger, and that can prevent excessive cooling of a battery or the like. This invention is provided with an object-to-be-temperature-regulated temperature regulation device (61) that regulates the temperature of an object that is subject to temperature regulation such as a battery (55) by circulating a heat medium through the object. The object-to-be-temperature-regulated temperature regulation device has a refrigerant/heat-medium heat exchanger (64) that causes heat exchange between a refrigerant and the heat medium, and heat medium heaters (66A, 66B). The refrigerant discharged from a compressor (2) is caused to release heat in an outdoor heat exchanger (7) and is then decompressed. Thereafter, a defrosting operation is executed, in which heat is absorbed from the heat medium in the refrigerant/heat-medium heat exchanger. Through the defrosting operation, the heat medium heaters control the temperature of the object that is subject to temperature regulation so as to be at least a prescribed lower limit value TL.
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Inventors:
ISHIZEKI TETSUYA (JP)
Application Number:
PCT/JP2019/026546
Publication Date:
February 06, 2020
Filing Date:
July 04, 2019
Export Citation:
Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP (JP)
International Classes:
B60H1/22
Foreign References:
| JP2012035812A | 2012-02-23 | |||
| JP2012017056A | 2012-01-26 | |||
| JP2017035901A | 2017-02-16 | |||
| JP2013139995A | 2013-07-18 | |||
| JP2018140720A | 2018-09-13 |
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