heat sink, simply put, is a means for heat dissipation, to protect the engine to avoid damage due to overheating, it is an important part of vehicle cooling system. .
1 heat sink design principle
In the automotive cooling system, the main component of the heat sink comprising: a radiator core, inlet chamber, outlet chamber and the main sheets. Radiator core structure of the main tube and tube plate with two categories. Serpentine is a radiator and a condenser with corrugated fins arranged alternately welded together, like a window blind, cooling took place after a turbulent air flow orifice, to disrupt the flow of air on the adhesive layer with the surface of the heat dissipation, increase the cooling area, improve heat dissipation. Segment radiator core portion is constituted by a plurality of fine cooling tubes and the fins, they use a flat cooling pipe cross-section, in order to reduce air resistance, increasing the heat transfer area.
In summary, the radiator core portion requirement is very stringent, there must be a sufficiently large area, both to facilitate the cooling liquid, but also to facilitate the flow of air as much as possible, the maximum degree must It allows for heat dissipation.
Principle: flowing the coolant radiator core, radiator coreIn addition, the air produced by the engine operation when the wrapping tremendous heat, the coolant temperature increases, the thermal coolant through continuous cooling to achieve the purpose of cooling the surrounding air, and cold air due to the cooling liquid to absorb heat dissipated itself cause heating, so, in fact, is a heat radiator, engine cooling help each other pass through hot and cold, to ensure their normal operation.
2. Production Materials
type of heat sink materials are metals, among which mainly aluminum and copper, aluminum radiator normally used in passenger cars, due to the characteristics of aluminum itself the advantages of light weight is much larger than other materials, and are widely used, especially in the field of cars and light trucks. Copper used for large commercial vehicles, with the rapid development of manufacturing technology of copper, copper brazed radiators reveal a great advantage in terms of engine radiator buses, construction machinery, heavy-duty trucks. China is now the brazed aluminum heat sink toward the direction of the development of welding production in some European countries, they are considered from an environmental perspective, the use of aluminum radiator. In short, or according to the characteristics of different materials, and the existing production techniques, to select the appropriate cooling equipment in the appropriate models.
radiator is protection of the engine, radiator engine like no time in ldquo; the dog days rdquo; people can not settle to work, not to mention the heat of the engine is very high, and only heat not the heat, it will burn itself. To avoid such a situation occur, usually still have to pay attention to inspection and maintenance, in particular, opened the car a few years, a lot of attention to.