公开(公告)号：US20230019047A1

公开(公告)日：2023-01-19

申请号：US17947935

申请日：2022-09-19

Applicant: DENSO CORPORATION

Inventor： Tatsurou KYUTO ,  Yasuhiro YOKOO ,  Yoshinori YANAGIMACHI

IPC: F25B43/02 ,  F25B5/02 ,  F25B41/20

Abstract: A refrigeration cycle device includes: a switching valve configured to switch between a battery mode in which refrigerant flows to a battery heat exchanger and a non-battery mode in which the refrigerant bypasses the battery heat exchanger; and a controller controlling a compressor and the switching valve. The controller includes an estimation unit configured to estimate an oil stagnation amount, which is an amount of lubricating oil accumulated in the battery heat exchanger in accordance with execution of the non-battery mode. The controller includes a determination unit configured to determine whether lubricating oil in the battery heat exchanger needs to be recovered on the basis of the oil stagnation amount. The controller includes an execution unit configured to execute an oil recovery mode for recovery of lubricating oil in the battery heat exchanger when the determination unit determines that lubricating oil needs to be recovered.