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Patent Searching and Data


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:
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:
JP2003314931A2003-11-06
JPS56121973A1981-09-25
JPH08261629A1996-10-11
JPH0743061A1995-02-10
JP2011058742A2011-03-24
JP2011058708A2011-03-24
JP2008025983A2008-02-07
Other References:
See also references of EP 3444546A4
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Patent business corporation きさ patent trademark office (JP)
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