Air Conditioner for Vehicle

Abstract

A controller ( 117 ) for an air conditioner using a refrigerant as a heat source is constructed such that, when a refrigerant temperature detected by a refrigerant temperature sensor ( 116 ) has reached a specified value, air with a volume of normal setting is blown into a vehicle compartment, and when the refrigerant temperature has not reached the specified value, air blowing into the vehicle compartment by a blower fan ( 107 ) is limited.

1 . An air conditioner for a vehicle that blows air heated by a refrigerant as a heat source into a vehicle interior to heat the vehicle interior, the air conditioner for a vehicle comprising:
 a refrigerant temperature detector that detects a temperature of the refrigerant; and   a controller that blows a normal set quantity of air into the vehicle interior when the refrigerant temperature detected by the refrigerant temperature detector reaches a prescribed value, and limits blow of air into the vehicle interior when the refrigerant temperature does not reach the prescribed value.   
   
   
       2 . The air conditioner for a vehicle according to  claim 1 , wherein the controller blows, into the vehicle interior, a small quantity of air determined according to the refrigerant temperature until the refrigerant temperature detected by the refrigerant temperature detector reaches the prescribed value. 
   
   
       3 . The air conditioner for a vehicle according to  claim 1 , wherein the controller blows, into the vehicle interior, a small quantity of air determined according to time elapsed after the air conditioner is actuated, until the refrigerant temperature detected by the refrigerant temperature detector reaches the prescribed value. 
   
   
       4 . The air conditioner for a vehicle according to  claim 1 , wherein the controller blows, into the vehicle interior, greater one of a small quantity of air determined according to the refrigerant temperature and a small quantity of air determined according to time elapsed after the air conditioner is actuated, until the refrigerant temperature detected by the refrigerant temperature detector reaches the prescribed value. 
   
   
       5 . An air conditioner for a vehicle that blows, into a vehicle interior, at least one of air heated by a refrigerant as a heat source and air heated by engine cooling water as the heat source to heat the vehicle interior, the air conditioner for a vehicle comprising:
 a refrigerant temperature detector that detects a temperature of the refrigerant;   a cooling water temperature detector that detects a temperature of the cooling water; and   a controller that blows a normal set quantity of air into the vehicle interior when one of the refrigerant temperature detected by the refrigerant temperature detector and the cooling water temperature detected by the cooling water temperature detector reaches a prescribed value, and that, when both the refrigerant temperature and the cooling water temperature do not reach the prescribed value, limits blow of air into the vehicle interior until one of the refrigerant temperature and the cooling water temperature reaches the prescribed value.   
   
   
       6 . The air conditioner for a vehicle according to  claim 5 , wherein when the cooling water temperature detected by the cooling water temperature detector reaches the prescribed value, the controller blows the normal set quantity of air into the vehicle interior in a state in which a ratio at which the cooling water is used as a heat source is variable, and when only the refrigerant temperature detected by the refrigerant temperature detector reaches the prescribed value, the controller blows the normal set quantity of air into the vehicle interior in a state in which a ratio at which the cooling water is used as the heat source is zero, and when both the cooling water temperature and refrigerant temperature do not reach the prescribed value, the controller limits blow of air into the vehicle interior until one of the cooling water temperature and refrigerant temperature reaches the prescribed value. 
   
   
       7 . The air conditioner for a vehicle according to  claim 5 , wherein the controller blows, into the vehicle interior, greater one of a small quantity of air determined according to the refrigerant temperature and a small quantity of air determined according to the cooling water temperature when both of the cooling water temperature detected by the cooling water temperature detector and the refrigerant temperature detected by the refrigerant temperature detector do not reach the prescribed value. 
   
   
       8 . The air conditioner for a vehicle according to  claim 5 , wherein the controller blows, into the vehicle interior, the greatest one of a small quantity of air determined according to the refrigerant temperature detected by the refrigerant temperature detector, a small quantity of air determined according to the cooling water temperature detected by the cooling water temperature detector, and a small quantity of air determined according to time elapsed after the air conditioner is actuated, when both of the cooling water temperature and the refrigerant temperature do not reach the prescribed value.