Patent ID: 8973386
Filing Date: 2015-03-10
Classification: B60H,B60K,B60L,F28D,H01M,Y02E,Y02T

Abstract:
1. An electric traction vehicle comprising: at least one pair of driving wheels; at least one reversible electric machine which is capable of being mechanically connected to the driving wheels; an electronic power converter operatively coupled to the electric machine; a storage system which is capable of storing electric energy, is connected to the electronic power converter and comprises a plurality of storage devices; a passenger compartment; an air conditioning system of the passenger compartment which is capable of regulating the temperature inside the passenger compartment; and a cooling system which is completely independent and separate from the air conditioning system of the passenger compartment, uses a compression refrigeration cycle to cool at least one of the electric machine, the electronic power converter and the storage system, and comprises a compressor which is actuated directly by a shaft of the electric machine; wherein the cooling system comprises a refrigeration circuit containing a refrigeration fluid and comprising the compressor, a condenser, an expansion valve and at least one evaporation element which is thermally coupled to at least one electric component; wherein the storage system comprises a first heat pipe which has a flat shape and includes a hollow body made of heat conducting metal containing a small quantity of refrigerant in liquid state, while the rest of the hollow body is filled with the vapor of the refrigerant; and wherein a flat wall of the first heat pipe is located in contact with a wall of each storage device and is also located in contact with an evaporator crossed by the cooling fluid circulating along the refrigeration circuit or with a first heat exchanger crossed by the cooling fluid circulating along the cooling circuit.