REFRIGERATION CYCLE DEVICE - MITSUBISHI ELECTRIC CORP

Title:

REFRIGERATION CYCLE DEVICE

Document Type and Number:

WIPO Patent Application WO/2017/179165

Kind Code:

A1

Abstract:

Provided is a refrigeration cycle device with improved energy-savings. This refrigeration cycle device comprises: a refrigerant circuit (10); a blower fan (20) which sends air to a heat exchanger (12); and a control unit (30). The control unit is configured so as to selectively perform a first operation, second operation, and third operation. The first operation (heating operation) causes the heat exchanger to function as an evaporator. The second operation (defrosting operation) causes the heat exchanger to function as a radiator to defrost the heat exchanger. The third operation (drainage standby operation), which is performed after the second operation, causes the compressor to stop and the blower fan to operate at a constant rotational speed. If the third operation is in execution and a physical quantity having a positive correlation with the electric power supplied to the blower fan becomes less than or equal to a threshold value, the control unit ends the third operation and starts the first operation.

Inventors:

ASANUMA HIROAKI (JP)
SHIMAZU YUSUKE (JP)
ISHIYAMA HIROKI (JP)

Application Number:

PCT/JP2016/061974

Publication Date:

October 19, 2017

Filing Date:

April 14, 2016

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F25B47/02; F24F11/02; F25D21/02; F25D21/06

Foreign References:

JP2003314931A	2003-11-06
JPS56121973A	1981-09-25
JPH08261629A	1996-10-11
JPH0743061A	1995-02-10
JP2011058742A	2011-03-24
JP2011058708A	2011-03-24
JP2008025983A	2008-02-07

Other References: