초록 ▼

An automotive air conditioning apparatus 10 is provided which includes a forced water supply system 9 and a heat pump system 14. A controller 16 controls the temperature of a second heat exchanger 38 of the heat pump system 14 to a desired temperature based on a preset temperature. The controller 16

An automotive air conditioning apparatus 10 is provided which includes a forced water supply system 9 and a heat pump system 14. A controller 16 controls the temperature of a second heat exchanger 38 of the heat pump system 14 to a desired temperature based on a preset temperature. The controller 16 also controls the temperature of the water circulating through the heat exchanger 20 of the forced water supply system 9 to a temperature at which the quantity of heat exchange between the air heated by the second heat exchanger 38 to the desired temperature and the heat exchanger 20 of the forced water supply system is minimized. According to this air conditioning arrangement, the temperature of the vehicle interior can be promptly raised without any capability drop being caused and thus, the heating efficiency of the apparatus being well enhanced.

대표청구항 ▼

[ What is claimed is:] [1.] An automotive air conditioning apparatus comprising:(a) a duct for supplying air into a vehicle interior, said duct having a first end connected to a vehicle interior and a second end in communication with atmospheric air;(b) a heat pump system including:a circulating pip

[ What is claimed is:] [1.] An automotive air conditioning apparatus comprising:(a) a duct for supplying air into a vehicle interior, said duct having a first end connected to a vehicle interior and a second end in communication with atmospheric air;(b) a heat pump system including:a circulating pipe for circulating a refrigerant,a first heat exchanger communicating with said circulating pipe for causing the refrigerant to absorb heat from outside air, anda second heat exchanger communicating with said circulating pipe and disposed within said duct for heating air in said duct by radiating the heat absorbed by the refrigerant in said first heat exchanger;(c) a forced water supply system including:a circulating pipe for circulating water, anda third heat exchanger disposed in said duct at a location downstream of said second heat exchanger in relation to the direction of air flow through said duct, said third heat exchanger being operative to further heat the air in said duct;(d) setting means for presetting a temperature of the air supplied into the vehicle interior through said duct; and(e) a controller for controlling the temperature of said second heat exchanger to a desired temperature calculated on the basis of the temperature preset by said setting means, and for controlling the temperature of the water flowing in said third heat exchanger to a temperature at which the quantity of heat exchange between the air from said second heat exchanger and said third heat exchanger is minimized.