Air Conditioning Device, in particular for a Rail Vehicle

Abstract

An air conditioning device is provided. The air conditioning device includes a primary circuit in which a refrigerant circulates, the primary circuit including an evaporator, and a first secondary circuit in which a first fluid circulates. The first fluid passes through the evaporator to exchange heat therein with the refrigerant. The first secondary circuit includes at least one first heat exchanger in which the first fluid exchanges heat with the air. The air conditioning device further includes at least one first compartment in which the primary circuit is housed, an air treatment zone, formed outside the first compartment and intended to communicate with the inside air, and in which the first heat exchanger is housed, and at least one sealed wall, separating the compartment from the air treatment zone. A railway vehicle having an air conditioning device is also provided.

What is claimed is: 
     
         1 . An air conditioning device for inside air conditioning in at least one passenger compartment of a rail vehicle passenger compartment, or premises, the air conditioning device comprising:
 a primary circuit, in which a refrigerant circulates, the primary circuit including an evaporator;   a first secondary circuit in which a first fluid circulates, the first fluid passing through the evaporator to exchange heat therein with the refrigerant, the first secondary circuit including at least one first heat exchanger in which the first fluid exchanges heat with inside air;   at least one first compartment housing the primary circuit;   an air treatment zone, formed outside the at least one first compartment, to communicate with inside air, and housing the first heat exchanger; and   at least one sealed wall separating the at least one first compartment from the air treatment zone.   
     
     
         2 . The air conditioning device according to  claim 1 , wherein the primary circuit includes a compressor, a condenser and an expander, all, in addition to the evaporator, being housed in the first compartment. 
     
     
         3 . The air conditioning device according to  claim 2 , wherein the compressor, condenser, expander and evaporator are arranged on a shared support. 
     
     
         4 . The air conditioning device according to  claim 3 , wherein the shared support is removable from the first compartment. 
     
     
         5 . The air conditioning device according to  claim 3 , wherein the primary circuit includes rigid circulation ducts for the refrigerant, respectively connecting the condenser to the expander, the expander to the evaporator, the evaporator to the compressor, and the compressor to the condenser, each rigid duct having a length smaller than 50 cm. 
     
     
         6 . The air conditioning device according to  claim 2 , including a second secondary circuit, in which a second fluid circulates, the second fluid passing through the condenser to exchange heat therein with the refrigerant, the second secondary circuit including at least one second heat exchanger, in which the second fluid exchanges heat with outside air. 
     
     
         7 . The air conditioning device according to  claim 6 , wherein the second secondary circuit includes a second pump for circulating the second fluid, the second pump being housed in the first compartment. 
     
     
         8 . The air conditioning device according to  claim 1 , wherein the first secondary circuit includes a first pump for circulating the first fluid, the first pump being housed in the first compartment. 
     
     
         9 . The air conditioning device according to  claim 1 , wherein the first secondary circuit includes a plurality of ducts connecting the evaporator to the first heat exchanger, at least one of the ducts passing through the sealed wall, a sealing gasket being provided between the at least one duct and the sealed wall. 
     
     
         10 . The air conditioning device according to  claim 1 , further comprising a second compartment forming the air treatment zone, the second compartment being open so as to communicate with the inside air. 
     
     
         11 . A rail vehicle comprising:
 a passenger compartment; and   an air conditioning device for inside air of the passenger compartment, the air conditioning device including:
 a primary circuit in which a refrigerant circulates, the primary circuit including an evaporator; 
 a first secondary circuit in which a first fluid circulates, the first fluid passing through the evaporator to exchange heat therein with the refrigerant, the first secondary circuit including at least one first heat exchanger in which the first fluid exchanges heat with inside air; 
 at least one first compartment housing the primary circuit; 
 an air treatment zone, formed outside the at least one first compartment, to communicate with inside air, and housing the first heat exchanger; and 
 at least one sealed wall separating the at least one first compartment from the air treatment zone. 
   
     
     
         12 . The rail vehicle according to  claim 11  wherein the rail vehicle is a tramway vehicle.