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Patent Searching and Data


Title:
VEHICLE AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/020161
Kind Code:
A1
Abstract:
The present invention improves heating performance while suppressing as much as possible a worsening in durability of a heat medium heating device. A vehicle air conditioner comprises: an air flow channel 11; a coolant circuit 20 including a compressor 21, a radiator 16, a heat sink 15, and an exterior heat exchanger 22; an auxiliary heating section 30 in which a heat medium heated by a heat medium heating device 32 is circulated; a heat medium-coolant heat exchanger 27 which is connected in parallel with the heat sink 15 and which performs heat exchange with the heat medium by causing coolant that has branched and flowed from a coolant flow channel 20c to absorb heat; and a control device 40 capable of air conditioning operations using the coolant circuit 20, the control device 40 driving the heat medium heating device 32 at a limited output which is no greater than a predetermined output limit value when it is determined that it is necessary to add an auxiliary heating function.

Inventors:
ISHIZEKI TETSUYA (JP)
ARAKI DAISUKE (JP)
Application Number:
PCT/JP2020/027792
Publication Date:
February 04, 2021
Filing Date:
July 17, 2020
Export Citation:
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Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP (JP)
International Classes:
B60H1/22
Foreign References:
JP2012232730A2012-11-29
JP2018192938A2018-12-06
JP2018184109A2018-11-22
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