Air-Conditioning System for a Vehicle

Abstract

An air-conditioning system for a vehicle includes an air-conditioning apparatus having a compressor 1 that compresses a first refrigerant 40 and a first heat exchanger 2 that exchanges heat between the first refrigerant 40 and external air and performing temperature regulation; and an equipment cooling apparatus that circulates a second refrigerant 41 B between equipment 53, 54, 55 for electrically driving the vehicle and a second heat exchanger 7 B to release heat absorbed from the equipment 53, 54, 55 to air in the vehicle interior in the heat exchanger 7 B. The system further includes a heat-radiation suppressing structure 60 that suppresses heat dissipation from the equipment 53, 54, 55 to surrounding environment.

1 . An air-conditioning system for a vehicle comprising:
 an air-conditioning apparatus having a compressor that compresses a first refrigerant and a first heat exchanger that exchanges heat between the first refrigerant and external air and performing temperature regulation of air in a vehicle interior of the vehicle;   an equipment cooling apparatus that circulates a second refrigerant between equipment for electrically driving the vehicle and a second heat exchanger to release heat absorbed from the equipment to the air in the vehicle interior in the second heat exchanger, wherein   the air-conditioning system further comprises a heat-radiation suppressing structure that suppresses heat dissipation from the equipment to surrounding environment.   
     
     
         2 . An air-conditioning system for a vehicle according to  claim 1 , wherein
 the heat-radiation suppressing structure comprises an heat insulating material that covers the equipment.   
     
     
         3 . An air-conditioning system for a vehicle according to  claim 1 , wherein
 the heat-radiation suppressing structure comprises a shielding member that is provided between the first heat exchanger and the equipment and shields the equipment from external air that has passed through the first heat exchanger.   
     
     
         4 . An air-conditioning system for a vehicle according to  claim 3 , wherein
 the shielding member comprises a duct that accommodates therein the first heat exchanger,   the duct including a first channel for guiding external air that has passed through the first heat exchanger to the equipment, a second channel for discharging the external air that has passed through the first heat exchanger to outside the vehicle, and a wind distributing unit that switches between the first and second channels to distribute the external air that has passed through the first heat exchanger.   
     
     
         5 . An air-conditioning system for a vehicle according to  claim 1 , wherein
 the equipment for driving the vehicle comprises a plurality of pieces of equipment, and   the heat-radiation suppressing structure has a layout of the plurality of pieces of the equipment such that a piece of equipment among the plurality of pieces of the equipment having a larger amount of heat generation is arranged at a position further downstream in a flow of the second refrigerant, and a piece of equipment having the largest amount of heat generation among the plurality of pieces of the equipment is provided close to the second heat exchanger.   
     
     
         6 . An air-conditioning system for a vehicle according to any  claim 1 , further comprising a third heat exchanger that exchanges heat between the first refrigerant and the second refrigerant. 
     
     
         7 . An air-conditioning system for a vehicle according to  claim 2 , further comprising a third heat exchanger that exchanges heat between the first refrigerant and the second refrigerant. 
     
     
         8 . An air-conditioning system for a vehicle according to  claim 3 , further comprising a third heat exchanger that exchanges heat between the first refrigerant and the second refrigerant. 
     
     
         9 . An air-conditioning system for a vehicle according to  claim 4 , further comprising a third heat exchanger that exchanges heat between the first refrigerant and the second refrigerant. 
     
     
         10 . An air-conditioning system for a vehicle according to  claim 5 , further comprising a third heat exchanger that exchanges heat between the first refrigerant and the second refrigerant.