REFRIGERATION CYCLE DEVICE - MITSUBISHI ELECTRIC CORP

Title:

REFRIGERATION CYCLE DEVICE

Document Type and Number:

WIPO Patent Application WO/2022/009312

Kind Code:

A1

Abstract:

This refrigeration cycle device is provided with a compressor (10), a first heat exchanger (20), a decompression device (30), a second heat exchanger (40), a first switching valve (60), a second switching valve (70), and a control device. The first switching valve is switched to either a first state for connecting a discharge port of the compressor to the first heat exchanger, or a second state for connecting the discharge port of the compressor to the second heat exchanger. The second switching valve is switched to any of a third state for connecting an intake port of the compressor to the second heat exchanger, a fourth state for connecting the intake port of the compressor to the first heat exchanger, and a fifth state for connecting the intake port of the compressor to the decompression device. If, during a first cooling operation for bringing the first switching valve and the second switching valve into the first state and the third state, respectively, a request has been made to switch to a second cooling operation for bringing the first switching valve and the second switching valve into the second state and the fourth state, respectively, then the control device performs a first switching operation for bringing the first switching valve into the second state and the second switching valve into the fifth state, and thereafter a switch is made to the second cooling operation.

Inventors:

NAKAJIMA KOMEI (JP)

Application Number:

PCT/JP2020/026569

Publication Date:

January 13, 2022

Filing Date:

July 07, 2020

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F25B1/00; F25B13/00

Foreign References:

JPH04254158A	1992-09-09
US6817205B1	2004-11-16
JP2015075188A	2015-04-20
JPS6073071U	1985-05-23
JP2005134099A	2005-05-26

Other References: