公开(公告)号：US20190032979A1

公开(公告)日：2019-01-31

申请号：US16082297

申请日：2016-10-21

Applicant: DENSO CORPORATION

Inventor： Shinya KASAMATSU ,  Satoshi ITO ,  Hideaki SATO ,  Takuya FUSE

IPC: F25B47/02 ,  F28D20/02

Abstract: During a normal operation, a refrigeration cycle device is switched to a refrigerant circuit in which heat contained in a high-pressure refrigerant flowing out of an interior radiator is stored in a heat storage member. When frost is formed on an evaporator, the refrigeration cycle device is switched to another refrigerant circuit in which the exterior heat exchanger is heated and defrosted using heat stored in the heat storage member as a heat source. The heat storage member uses a material formed by adding W (tungsten) as an additive to VO2 (vanadium dioxide) which is a transition metal oxide having a property of a phase transition between a metal and an insulator. The heat storage member effectively stores or dissipates heat depending on a temperature zone of the refrigerant, thereby suppressing an increase in energy consumption of a compressor.