Heat exchange unit

Abstract

A heat exchange unit includes a compressor configured to compress a working medium that circulates through a refrigerating cycle, the working medium including 1,1,2-trifluoroethylene, a heat exchanger provided in the refrigerating cycle, and a heat dissipation means configured to dissipate heat generated in the compressor without using the working medium.

1 . A heat exchange unit comprising:
 a compressor configured to compress a working medium that circulates through a refrigerating cycle, the working medium comprising 1,1,2-trifluoroethylene;   a heat exchanger provided in the refrigerating cycle; and   a heat dissipation means configured to dissipate heat generated in the compressor without using the working medium.   
     
     
         2 . The heat exchange unit according to  claim 1 ,
 wherein the heat dissipation means comprises a blower configured to increase an air flow flowing along a surface of the heat exchanger to enhance heat exchange in the heat exchanger so that an air flow sent from the blower is used to dissipate the heat generated in the compressor and   the heat exchanger unit further comprises a partition that separates a space where the blower is provided from a space where the compressor is provided, and   wherein the partition has a vent hole formed therein at a position corresponding to the compressor.   
     
     
         3 . The heat exchange unit according to  claim 2 , comprising an air deflector that directs a part of the air flow sent from the blower toward the compressor. 
     
     
         4 . The heat exchange unit according to  claim 3 , wherein the air deflector is configured to be rotatable toward the compressor. 
     
     
         5 . The heat exchange unit according to  claim 2 , wherein the blower comprises a wind direction changing part that changes the direction of wind of the blower toward the compressor. 
     
     
         6 . The heat exchange unit according to  claim 5 , comprising:
 a detecting part that detects a temperature of the working medium discharged from the compressor;   a determination part that determines whether or not the temperature of the working medium is higher than a predetermined temperature; and   a first control part that controls the wind direction changing part in accordance with a determination made by the determination part,   wherein in a case where the temperature of the working medium is higher than the predetermined temperature, the first control part controls the wind direction changing part so that wind direction of the blower is directed toward the compressor.   
     
     
         7 . The heat exchange unit according to  claim 1 , wherein the heat dissipation means comprises a heat sink in the compressor, wherein the heat sink dissipates the heat generated in the compressor. 
     
     
         8 . The heat exchange unit according to  claim 1 , wherein the heat dissipation means comprises a drain-water supply unit that supplies drain water yielded in the refrigerating cycle to a surface of the compressor to cool the compressor. 
     
     
         9 . The heat exchange unit according to  claim 8 , wherein the drain-water supply unit comprises:
 a drain-water reservoir for reserving therein drain water yielded in the refrigerating cycle;   a detecting part that detects a temperature of the working medium discharged from the compressor;   a determination part that determines whether or not the temperature of the working medium is higher than a predetermined temperature;   an electromagnetic valve that performs switching regarding the supply of the drain water from the drain-water reservoir to the surface of the compressor, and   a second control part that controls the electromagnetic valve in accordance with a determination made by the determination part,   wherein in a case where the temperature of the working medium is higher than the predetermined temperature, the second control part opens the electromagnetic valve to supply the drain water from the drain-water reservoir to the surface of the compressor.