Heat exchange apparatus

Abstract

A heat exchange apparatus that performs heat exchange between a refrigerant and a temperature-adjusted unit includes: a compressor that circulates the refrigerant; a heat exchanger that performs heat exchange between the refrigerant and outside air; an expansion valve that reduces a pressure of the refrigerant; a heat exchanger that performs heat exchange between the refrigerant and air-conditioning air; a cooling passage that forms a path for the refrigerant to flow between the heat exchanger and the expansion valve; and a heating passage that forms a path for the refrigerant to flow between the expansion valve and the heat exchanger. The temperature-adjusted unit is disposed to be capable of exchanging heat with the refrigerant flowing through the cooling passage and to be capable of exchanging heat with the refrigerant flowing through the heating passage.

1 . A heat exchange apparatus that performs heat exchange between a refrigerant and a temperature-adjusted unit, comprising:
 a compressor configured to compress the refrigerant in order to circulate the refrigerant through the heat exchange apparatus;   a first heat exchanger configured to perform heat exchange between the refrigerant and outside air;   a first pressure reducer configured to reduce a pressure of the refrigerant;   a second heat exchanger configured to perform heat exchange between the refrigerant and air-conditioning air; and   a first flow control valve configured to adjust a flow rate of the refrigerant,   
       wherein a first passage provides a path for the refrigerant to flow between the first heat exchanger and the first pressure reducer, a second passage provides a path for the refrigerant to flow between the first pressure reducer and the second heat exchanger, a third passage is connected in parallel with the first passage on the refrigerant path between the first heat exchanger and the first pressure reducer, the first flow control valve adjusts the flow rate of the refrigerant flowing through the first passage and the flow rate of the refrigerant flowing through the third passage, and the temperature-adjusted unit is disposed to exchange heat with the refrigerant flowing through the first passage and to exchange heat with the refrigerant flowing through the second passage. 
     
     
         2 . The heat exchange apparatus according to  claim 1 , further comprising:
 a four-way valve configured to switch between a refrigerant flow from the compressor to the first heat exchanger and a refrigerant flow from the compressor to the second heat exchanger.   
     
     
         3 . (canceled) 
     
     
         4 . The heat exchange apparatus according to  claim 1 , further comprising:
 a second flow control valve configured to adjust a flow rate of the refrigerant,   
       wherein a fourth passage is connected in parallel with the second passage on the refrigerant path between the first pressure reducer and the second heat exchanger; and
 the second flow control valve adjusts the flow rate of the refrigerant flowing through the second passage and the flow rate of the refrigerant flowing through the fourth passage. 
 
     
     
         5 . The heat exchange apparatus according to  claim 1 , further comprising:
 a first open/close valve configured to open and close the first passage.   
     
     
         6 . The heat exchange apparatus according to  claim 4 , further comprising:
 a second open/close valve configured to open and close the second passage.   
     
     
         7 . The heat exchange apparatus according to  claim 6 , wherein the second open/close valve is closed when the first open/close valve is open and the second open/close valve is open when the first open/close valve is closed. 
     
     
         8 . The heat exchange apparatus according to  claim 1 , further comprising:
 a second pressure reducer configured to reduce the pressure of the refrigerant, the second pressure reducer being provided in the first passage between the first heat exchanger and the temperature-adjusted unit.   
     
     
         9 . The heat exchange apparatus according to  claim 8 , further comprising:
 a third open/close valve configured to open and close a passage for the refrigerant, wherein a fifth passage is connected in parallel with a path passing through the second pressure reducer on a path that forms a part of the first passage and passes through the temperature-adjusted unit and the first heat exchanger, and the third open/close valve that is provided in the fifth passage in order to open and close the fifth passage.