All Aluminum Automotive Air Conditioning Evaporator

All Aluminum Automotive Air Conditioning Evaporator

An all - aluminum automotive air - conditioning evaporator is a key component in the automotive air - conditioning system.

Structure

It is composed of aluminum fins and aluminum round tubes. The aluminum fins are tightly connected to the round tubes through the tube - expansion process. This structure is a traditional heat - exchanger structure, and the round tubes generally use smooth tubes. In order to improve the heat - transfer efficiency on the refrigerant side, round tubes with spiral inner fins are also used.

Working Principle

The all - aluminum automotive air - conditioning evaporator receives the low - pressure refrigerant output from the expansion valve. The refrigerant absorbs the heat of the air in the vehicle during the evaporation process, changes from a liquid state to a gaseous state, and thus realizes the cooling of the vehicle interior. At the same time, when the air passes through the surface of the evaporator, the water vapor in the air condenses into water droplets, which are discharged outside the vehicle, playing a role in dehumidification.

Advantages

Lightweight: Aluminum has a low density. Using all - aluminum materials can significantly reduce the weight of the evaporator, which is of great significance for fuel - efficient vehicles and new - energy vehicles, helping to improve vehicle fuel economy and battery life.

High Heat - transfer Efficiency: The thermal conductivity of aluminum is relatively good, and the reasonable fin and tube structure design, such as the multi - channel and porous structure of the laminated and tube - belt type evaporators, can increase the heat - transfer area and air - flow efficiency, improving the heat - transfer effect.

Corrosion Resistance: Aluminum has good corrosion - resistance, and after surface treatment, it can better adapt to the relatively humid working environment in the vehicle and has a long service life.

Good Processability: Aluminum materials have good formability and can be processed into various complex shapes through processes such as stamping, bending, and welding, which is convenient for manufacturing evaporators of different structures to meet the installation and performance requirements of different models.