Refrigeration cycle device

Abstract

A refrigeration cycle device includes a heat exchanger main body, a plurality of flow rate adjusters, and a controller. The heat exchanger main body has a plurality of refrigerant flow paths including a first refrigerant flow path and a second refrigerant flow path. The flow rate adjusters adjust flow rates of a refrigerant flowing through the refrigerant flow paths. The controller adjusts the flow rates of the refrigerant flowing through the refrigerant flow paths by controlling opening degrees of the flow rate adjusters. The controller controls the opening degrees of the flow rate adjusters based on a first value or a second value. The first value is a value representing overall efficiency of the refrigeration cycle. The second value is a value representing overall efficiency of the heat exchanger main body.

1 . A refrigeration cycle device comprising:
 a heat exchanger having a plurality of refrigerant flow paths including a first refrigerant flow path and a second refrigerant flow path;   a plurality of flow rate adjusters that adjust flow rates of a refrigerant flowing through the respective refrigerant flow paths; and   a controller, wherein   the controller   adjusts the flow rates of the refrigerant flowing through the refrigerant flow paths by controlling opening degrees of the flow rate adjusters, and   controls the opening degrees of the respective flow rate adjusters based on a first value that is a value representing overall efficiency of a refrigeration cycle or a second value that is a value representing overall efficiency of the heat exchanger.   
     
     
         2 . The refrigeration cycle device according to  claim 1 , wherein the first value includes an electric power consumption value of a compressor that compresses the refrigerant or a pressure value of the refrigerant flowing through the heat exchanger. 
     
     
         3 . The refrigeration cycle device according to  claim 1 , wherein the second value includes an outlet temperature of the heat exchanger, after the refrigerant that has flowed out of the first refrigerant flow path and the refrigerant that has flowed out of the second refrigerant flow path have joined each other. 
     
     
         4 . The refrigeration cycle device according to  claim 2 , wherein the first value or the second value further includes a temperature of air that exchanges heat with the refrigerant in the heat exchanger. 
     
     
         5 . The refrigeration cycle device according to  claim 2 , wherein the first value or the second value further includes a rotation speed of a fan that generates a flow of air that exchanges heat with the refrigerant in the heat exchanger. 
     
     
         6 . The refrigeration cycle device according to  claim 2 , wherein the first value or the second value further includes a rotation speed of the compressor. 
     
     
         7 . The refrigeration cycle device according to  claim 2 , wherein the first value or the second value further includes an opening degree of an expansion valve that adjusts the flow rate of the refrigerant. 
     
     
         8 . The refrigeration cycle device according to  claim 1 ,
 further comprising a learning device that associates with each other and learns a combination of the opening degrees of the plurality of flow rate adjusters and the first value or the second value when the opening degrees of the plurality of flow rate adjusters correspond to the combination of the opening degrees,   
       wherein
 the learning device classifies the combination of the opening degrees in accordance with a level of a heat exchange capability of the heat exchanger, the level of the heat exchange capability being estimated from the first value or the second value, and 
 the controller controls the opening degrees of the respective flow rate adjusters by using the combination of the opening degrees classified, by the learning device, into a class at which the heat exchange capability of the heat exchanger is higher than a predetermined value. 
 
     
     
         9 . The refrigeration cycle device according to  claim 1 ,
 further comprising a learning device that associates with each other and learns a combination of the opening degrees of the plurality of flow rate adjusters and the first value or the second value when the opening degrees of the plurality of flow rate adjusters correspond to the combination of the opening degrees,   
       wherein
 the learning device calculates the combination of the opening degrees, the combination improving the heat exchange capability of the heat exchanger, the heat exchange capability being estimated from the first value or the second value, and 
 the controller controls the opening degrees of the respective flow rate adjusters by using the combination of the opening degrees calculated by the learning device. 
 
     
     
         10 . The refrigeration cycle device according to  claim 2 , wherein the second value includes an outlet temperature of the heat exchanger, after the refrigerant that has flowed out of the first refrigerant flow path and the refrigerant that has flowed out of the second refrigerant flow path have joined each other. 
     
     
         11 . The refrigeration cycle device according to  claim 3 , wherein the first value or the second value further includes a temperature of air that exchanges heat with the refrigerant in the heat exchanger. 
     
     
         12 . The refrigeration cycle device according to  claim 3 , wherein the first value or the second value further includes a rotation speed of a fan that generates a flow of air that exchanges heat with the refrigerant in the heat exchanger. 
     
     
         13 . The refrigeration cycle device according to  claim 4 , wherein the first value or the second value further includes a rotation speed of a fan that generates a flow of air that exchanges heat with the refrigerant in the heat exchanger. 
     
     
         14 . The refrigeration cycle device according to  claim 3 , wherein the first value or the second value further includes a rotation speed of the compressor. 
     
     
         15 . The refrigeration cycle device according to  claim 4 , wherein the first value or the second value further includes a rotation speed of the compressor. 
     
     
         16 . The refrigeration cycle device according to  claim 5 , wherein the first value or the second value further includes a rotation speed of the compressor. 
     
     
         17 . The refrigeration cycle device according to  claim 3 , wherein the first value or the second value further includes an opening degree of an expansion valve that adjusts the flow rate of the refrigerant. 
     
     
         18 . The refrigeration cycle device according to  claim 4 , wherein the first value or the second value further includes an opening degree of an expansion valve that adjusts the flow rate of the refrigerant. 
     
     
         19 . The refrigeration cycle device according to  claim 5 , wherein the first value or the second value further includes an opening degree of an expansion valve that adjusts the flow rate of the refrigerant. 
     
     
         20 . The refrigeration cycle device according to  claim 6 , wherein the first value or the second value further includes an opening degree of an expansion valve that adjusts the flow rate of the refrigerant.