REFRIGERATION CYCLE DEVICE

Japanese Patent JP2016080331

A

PROBLEM TO BE SOLVED: To provide a refrigeration cycle device which is reduced in a discharge temperature while maintaining heat exchange capacity.SOLUTION: A refrigeration cycle device includes a compressor, a condenser, an electronic expansion valve, an evaporator, a condensation pressure detection part, an evaporation pressure detector and a control part. The compressor can change an operation frequency. The condensation pressure detection part detects pressure of refrigerant in the condenser. The evaporation pressure detector detects pressure of refrigerant in the evaporator. The control part controls the compressor and the electronic expansion valve. The control part controls the compressor and the electronic expansion valve on the basis of the temperature of the refrigerant discharged from the compressor. The refrigerant flowing in the compressor, the condenser, the electronic expansion valve and the evaporator forms a refrigeration cycle. The control part calculates a controlling discharge temperature from the refrigeration cycle condition. The control part reduces the operation frequency of the compressor when the controlling discharge temperature is higher than a prescribed reference discharge temperature, and maintains the operation frequency of the compressor when the controlling discharge temperature is equal to or lower than the reference discharge temperature.SELECTED DRAWING: Figure 1

OTA SATOSHI
KIGUCHI YUKIO

JP2014215557A

May 16, 2016

October 22, 2014

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TOSHIBA CARRIER CORP

F25B1/00; F25B43/00

JP2011141046A	2011-07-21
JP2003294296A	2003-10-15
JPH11159892A	1999-06-15
JP2001194015A	2001-07-17

Shiga International Patent Office

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