Refrigeration cycle device and refrigeration cycle system

Abstract

A refrigeration cycle device includes a refrigerant circuit configured to cause refrigerant to circulate, a heat exchanger unit that houses a heat exchanger of the refrigerant circuit, and a controller configured to control the heat exchanger unit. The heat exchanger unit is provided with an air-sending fan and a refrigerant detector. The controller is configured to cause the air-sending fan to run, and is configured to disregard a detection signal from the refrigerant detector when a rotational speed of the air-sending fan is equal to or greater than a first threshold value, even if the controller detects a leakage of refrigerant on the basis of the detection signal from the refrigerant detector.

1 . A refrigeration cycle device, comprising:
 a refrigerant circuit configured to cause refrigerant to circulate;   a heat exchanger unit that houses a heat exchanger of the refrigerant circuit; and   a controller configured to control the heat exchanger unit,   the heat exchanger unit being provided with an air-sending fan and an electrical refrigerant detector,   the controller being configured to cause the refrigerant detector to be ready to detect a leakage of refrigerant while causing the air-sending fan to run,   the controller being configured to disregard a detection signal from the refrigerant detector when a rotational speed of the air-sending fan is equal to or greater than a first threshold value, even if the controller detects a leakage of refrigerant on a basis of the detection signal from the refrigerant detector.   
     
     
         2 . The refrigeration cycle device of  claim 1 , wherein the controller is configured to issue a notification about the leakage of refrigerant when the controller causes the air-sending fan to run at a rotational speed less than the first threshold value and the controller detects the leakage of refrigerant on a basis of the detection signal from the refrigerant detector. 
     
     
         3 . The refrigeration cycle device of  claim 2 , wherein,
 in a state in which the controller is configured to issue no notification about the leakage of refrigerant even if the controller detects the leakage of refrigerant on a basis of the detection signal from the refrigerant detector when a rotational speed of the air-sending fan is equal to or greater than the first threshold value, the controller is configured to issue the notification about the leakage of refrigerant when the rotational speed of the air-sending fan becomes less than a second threshold value, and   the second threshold value is equal to or less than the first threshold value.   
     
     
         4 . The refrigeration cycle device of  claim 1 , wherein the heat exchanger is a load side heat exchanger of the refrigerant circuit. 
     
     
         5 . The refrigeration cycle device of  claim 1 , wherein the heat exchanger is a heat source side heat exchanger of the refrigerant circuit. 
     
     
         6 . A refrigeration cycle system, comprising:
 a refrigeration cycle device including a refrigerant circuit configured to cause refrigerant to circulate and a controller configured to control the refrigerant circuit;   an air-sending fan controlled by the controller; and   an electrical refrigerant detector configured to output a detection signal to the controller,   the controller being configured to cause the refrigerant detector to be ready to detect a leakage of refrigerant while causing the air-sending fan to run,   the controller being configured to disregard the detection signal from the refrigerant detector when a rotational speed of the air-sending fan is equal to or greater than a first threshold value, even if the controller detects a leakage of refrigerant on a basis of the detection signal from the refrigerant detector.   
     
     
         7 . The refrigeration cycle system of  claim 6 , wherein the controller is configured to issue a notification about the leakage of refrigerant when the controller causes the air-sending fan to run at a rotational speed less than the first threshold value and the controller detects the leakage of refrigerant on a basis of the detection signal from the refrigerant detector. 
     
     
         8 . The refrigeration cycle system of  claim 7 , wherein,
 in a state in which the controller is configured to issue no notification about the leakage of refrigerant even if the controller detects the leakage of refrigerant on a basis of the detection signal from the refrigerant detector when a rotational speed of the air-sending fan is equal to or greater than the first threshold value, the controller is configured to issue the notification about the leakage of refrigerant when the rotational speed of the air-sending fan becomes less than a second threshold value, and   the second threshold value is equal to or less than the first threshold value.