Refrigeration cycle device

Abstract

An aspect of a refrigeration cycle device according to the present disclosure includes an outdoor unit including a heat exchanger; a temperature detection device attached to the heat exchanger; and a controller that makes the refrigeration cycle device to perform a defrosting operation, wherein the heat exchanger comprises a heat exchanger main body including a plurality of heat transmission pipes arranged side by side in a predetermined direction; a first/second collecting pipe connected to a first/second end portion of the plurality of heat transmission pipes; and a first/second port portion communicated with the heat exchanger main body via the first collecting pipe, during the defrosting operation, the controller terminates the defrosting operation in a case in which the temperature acquired by the temperature detection device is equal to or higher than a predetermined temperature.

1 . A refrigeration cycle device comprising:
 an outdoor unit including a heat exchanger;   a temperature detection device attached to the heat exchanger; and   a controller that makes the refrigeration cycle device to perform a defrosting operation for removing frost generated in the heat exchanger based on temperature acquired by the temperature detection device,   wherein the heat exchanger comprises
 a heat exchanger main body including a plurality of heat transmission pipes arranged side by side in a predetermined direction; 
 a first collecting pipe connected to a first end portion of the plurality of heat transmission pipes; 
 a second collecting pipe connected to a second end portion of the plurality of heat transmission pipes; and 
 a first port portion and a second port portion communicated with the heat exchanger main body via the first collecting pipe, 
   the first port portion is positioned at a first side of the second port portion in the predetermined direction,   the plurality of heat transmission pipes comprises
 a plurality of first heat transmission pipes; and 
 a plurality of second heat transmission pipes positioned at a second side of the plurality of first heat transmission pipes in the predetermined direction, 
   the first collecting pipe comprises
 a first connection portion communicating an inside of the plurality of first heat transmission pipes and an inside of the first port portion; and 
 a second connection portion communicating an inside of the plurality of second heat transmission pipes and an inside of the second port portion, 
   during the defrosting operation, refrigerant flowing to the inside of the heat exchanger from the first port portion flows to the inside of the plurality of first heat transmission pipes, the refrigerant flowing to the inside of the plurality of first heat transmission pipes flows to an inside of the plurality of second heat transmission pipes, and the refrigerant flowing to the inside of the plurality of second heat transmission pipes joins at the second connection portion and then flows out of the heat exchanger from the second port portion,   the temperature detection device is arranged at an upstream side of the second connection portion along a flow direction of the refrigerant during the defrosting operation and attached to an end portion in the heat exchanger main body at a second side in the predetermined direction, and   during the defrosting operation, the controller terminates the defrosting operation in a case in which the temperature acquired by the temperature detection device is equal to or higher than a predetermined temperature.   
     
     
         2 . The refrigeration cycle device according to  claim 1 , wherein the temperature detection device is attached to an end portion that is close to the second port portion side among the end portions of the heat exchanger main body at the second side. 
     
     
         3 . The refrigeration cycle device according to  claim 1 ,
 wherein the heat exchanger main body includes first heat transmission fins that connect the adjacent heat transmission pipes in the predetermined direction, and   the first heat transmission fins are corrugated fins extending in a direction along which the heat transmission pipes extend.   
     
     
         4 . The refrigeration cycle device according to  claim 1 , wherein a dimension of the heat transmission pipes in the predetermined direction is smaller than a dimension of the heat transmission pipes in a direction orthogonal to both a direction in which the heat transmission pipes extend and the predetermined direction. 
     
     
         5 . (canceled) 
     
     
         6 . (canceled) 
     
     
         7 . The refrigeration cycle device according to  claim 1 ,
 wherein the heat exchanger main body includes
 a protective member arranged at the second side of the plurality of heat transmission pipes; and 
 second heat transmission fins that connect the protective member and the plurality of heat transmission pipes, and 
   the temperature detection device is attached to a surface at the second side of the protective member.   
     
     
         8 . The refrigeration cycle device according to  claim 7 ,
 wherein the protective member is a tubular member, and   a shape of the protective member in a cross section orthogonal to a direction in which the protective member extends is same with a shape of the heat transmission pipe in a cross section orthogonal to a direction in which the heat transmission pipe extends.   
     
     
         9 . The refrigeration cycle device according to  claim 1 , wherein the temperature detection device is attached to the heat transmission pipe positioned at the most second side among the plurality of heat transmission pipes. 
     
     
         10 . The refrigeration cycle device according to  claim 1 ,
 wherein the predetermined direction is a vertical direction,   the first side is an upper side of the vertical direction, and   the second side is a lower side of the vertical direction.