Air-conditioning device

Abstract

An air-conditioning device includes: a suction air temperature sensor provided in an indoor unit; a wireless temperature sensor unit separate from the indoor unit; an abnormal condition determining section determining whether or not the wireless temperature sensor unit is in an abnormal condition; an index setting section setting a temperature index value; and a controller controlling operation of the air-conditioning device based on the set temperature index value. While the abnormal condition determining section determines that the wireless temperature sensor unit is in the abnormal condition, the index setting section determines a measurement value of the suction air temperature sensor to be the temperature index value.

1 . An air-conditioning device conditioning air in an indoor space, the device comprising:
 an indoor unit drawing indoor air, adjusting a temperature of the indoor air drawn, and expelling the indoor air into the indoor space;   a suction air temperature sensor provided in the indoor unit to measure the temperature of the indoor air drawn into the indoor unit;   a wireless temperature sensor unit separate from the indoor unit and separate from a remote control unit for the air-conditioning device, the wireless temperature sensor unit including an ambient temperature sensor and a transmitter, the ambient temperature sensor measuring an ambient temperature, the transmitter transmitting a signal of a measurement value (Tm 2 ) of the ambient temperature sensor by radio;   a receiver receiving the signal transmitted by the transmitter, the receiver configured to determine whether or not the wireless temperature sensor unit is in an abnormal condition, based on a fact that a predetermined abnormal operation condition is satisfied; and   a controller configured to control an operation of the air-conditioning device based on a measurement value (Tm 1 ) of the suction air temperature sensor if it is determined that the wireless temperature sensor unit is in an abnormal condition.   
     
     
         2 . The air-conditioning device of  claim 1 , wherein
 the controller controls the operation of the air-conditioning device based on the measurement value (Tm 2 ) of the ambient temperature sensor if it is determined that the wireless temperature sensor unit is not in an abnormal condition.   
     
     
         3 . The air-conditioning device of  claim 1 , wherein
 the receiver is configured to, if the signal has not been received from the wireless temperature sensor unit, determine that the wireless temperature sensor unit is in an abnormal condition.   
     
     
         4 . The air-conditioning device of  claim 1 , wherein
 the receiver is configured to, if the signal has not been received from the wireless temperature sensor unit due to a power shortage of the wireless temperature sensor unit, determine that the wireless temperature sensor unit is in an abnormal condition.   
     
     
         5 . The air-conditioning device of  claim 1 , further comprising:
 a display displaying that the wireless temperature sensor unit is in an abnormal condition if it is determined that the wireless temperature sensor unit is in an abnormal condition.   
     
     
         6 . The air-conditioning device of  claim 1 , further comprising:
 an indoor fan provided in the indoor unit and drawing air,   
       wherein
 the controller is configured to control a rotational speed of the indoor fan based on the measurement value (Tm 1 ) of the suction air temperature sensor if it is determined that the wireless temperature sensor unit is in an abnormal condition. 
 
     
     
         7 . The air-conditioning device of  claim 1 , further comprising:
 an airflow direction adjusting flap provided in the indoor unit and adjusting a direction of supply airflow,   
       wherein
 the controller is configured to control an orientation of the airflow direction adjusting flap based on the measurement value (Tm 1 ) of the suction air temperature sensor if it is determined that the wireless temperature sensor unit is in an abnormal condition. 
 
     
     
         8 . The air-conditioning device of  claim 1 , further comprising:
 an outdoor unit connected with the indoor unit and including a compressor,   
       wherein
 the controller is configured to control a rotational speed of the compressor based on the measurement value (Tm 1 ) of the suction air temperature sensor if it is determined that the wireless temperature sensor unit is in an abnormal condition. 
 
     
     
         9 . The air-conditioning device of  claim 1 , wherein
 the indoor unit includes a plurality of indoor units.   
     
     
         10 . The air-conditioning device of  claim 1 , wherein
 the indoor unit is a ceiling-embedded indoor unit, a ceiling-hanging indoor unit, a wall-mounted indoor unit, or a floor-mounted indoor unit.   
     
     
         11 . An air-conditioning device conditioning air in an indoor space, the device comprising:
 an indoor unit drawing indoor air, adjusting a temperature of the indoor air drawn, and expelling the indoor air into the indoor space;   a suction air temperature sensor provided in the indoor unit to measure the temperature of the indoor air drawn into the indoor unit;   a wireless temperature sensor unit separate from the indoor unit and separate from a remote control unit for the air-conditioning device, the wireless temperature sensor unit including an ambient temperature sensor and a transmitter, the ambient temperature sensor measuring an ambient temperature, the transmitter transmitting a signal of a measurement value (Tm 2 ) of the ambient temperature sensor by radio; and   a controller configured to receive the signal transmitted by the transmitter, determine whether or not the wireless temperature sensor unit is in an abnormal condition, based on a fact that a predetermined abnormal operation condition is satisfied, and control an operation of the air-conditioning device based on a measurement value (Tm 1 ) of the suction air temperature sensor if it is determined that the wireless temperature sensor unit is in an abnormal condition.   
     
     
         12 . The air-conditioning device of  claim 11 , wherein
 the controller controls the operation of the air-conditioning device based on the measurement value (Tm 2 ) of the ambient temperature sensor if it is determined that the wireless temperature sensor unit is not in an abnormal condition.   
     
     
         13 . The air-conditioning device of  claim 11 , wherein
 the controller is configured to, if the signal has not been received from the wireless temperature sensor unit, determine that the wireless temperature sensor unit is in an abnormal condition.   
     
     
         14 . The air-conditioning device of  claim 11 , wherein
 the controller is configured to, if the signal has not been received from the wireless temperature sensor unit due to a power shortage of the wireless temperature sensor unit, determine that the wireless temperature sensor unit is in an abnormal condition.   
     
     
         15 . The air-conditioning device of  claim 11 , further comprising:
 a display displaying that the wireless temperature sensor unit is in an abnormal condition if it is determined that the wireless temperature sensor unit is in an abnormal condition.   
     
     
         16 . The air-conditioning device of  claim 11 , further comprising:
 an indoor fan provided in the indoor unit and drawing air,   
       wherein
 the controller is configured to control a rotational speed of the indoor fan based on the measurement value (Tm 1 ) of the suction air temperature sensor if it is determined that the wireless temperature sensor unit is in an abnormal condition. 
 
     
     
         17 . The air-conditioning device of  claim 11 , further comprising:
 an airflow direction adjusting flap provided in the indoor unit and adjusting a direction of supply airflow,   
       wherein
 the controller is configured to control an orientation of the airflow direction adjusting flap based on the measurement value (Tm 1 ) of the suction air temperature sensor if it is determined that the wireless temperature sensor unit is in an abnormal condition. 
 
     
     
         18 . The air-conditioning device of  claim 11 , further comprising:
 an outdoor unit connected with the indoor unit and including a compressor,   
       wherein
 the controller is configured to control a rotational speed of the compressor based on the measurement value (Tm 1 ) of the suction air temperature sensor if it is determined that the wireless temperature sensor unit is in an abnormal condition. 
 
     
     
         19 . The air-conditioning device of  claim 11 , wherein
 the indoor unit includes a plurality of indoor units.   
     
     
         20 . The air-conditioning device of  claim 11 , wherein
 the indoor unit is a ceiling-embedded indoor unit, a ceiling-hanging indoor unit, a wall-mounted indoor unit, or a floor-mounted indoor unit.