Summer is coming unconsciously. Many friends have already begun to feel the heat from the computer, right? If you want the computer to work stably for a long time in summer, you must properly solve the problem of heat dissipation. The CPU as the core of the computer, aluminum CPU heat sink is one of the key issues affecting the stability of the entire system.
A heat sink is a device for dissipating heat-prone electronic components in electrical appliances. It is mostly made of aluminum alloy, brass, or bronze. It is made into a plate shape, a sheet shape, a multi-sheet shape, etc. Quite a large heat sink, the power tube in the TV, the line tube, the power amplifier tube in the power amplifier should use the heat sink. In general, the heat sink should be coated with a layer of thermal grease on the contact surface of the electronic component and the heat sink, so that the heat emitted by the component is more effectively conducted to the heat sink, and then radiated to the surrounding air through the heat sink.
Long duration time aluminum heatsink supplier believes that as far as the heat sink materials are concerned, each material has different thermal conductivity, and they are arranged according to the thermal conductivity from high to low, namely silver and copper. Aluminum, steel. However, if silver is used as the heat sink, it will be too expensive, so the best solution is to use copper. Although aluminum is much cheaper, it is clear that thermal conductivity is not as good as copper (only about 50% of copper).
The commonly used heat sink materials are copper and aluminum alloys, each of which has its own advantages and disadvantages. Copper has good thermal conductivity, but the price is more expensive, the processing difficulty is higher, the weight is too large (many pure copper radiators exceed the weight limit of the CPU), the thermal capacity is small, and it is easy to oxidize. Pure aluminum is too soft to be used directly. All aluminum alloys are used to provide sufficient hardness. The advantages of aluminum alloys are low price and lightweight, but the thermal conductivity is worse than copper. Some extruded aluminum heat sinks have their own strengths, embedding a copper plate on the base of the aluminum alloy radiator.
The use of the radiator itself is designed directly by the manufacturer! For ordinary users, the use of heat sinks is basically used by the municipal department! It has been done in electrical appliances, regardless of material, performance manufacturers will design the most reasonable. The classified heat sink plays an important role in the composition of the radiator. In addition to the active cooling of the fan. Evaluate the stand or fall of a radiator, depend on the ability of heat sink itself to absorb heat and heat conduction ability greatly.
Extruded Aluminum Heat Sinks
A. According to the material used, it can be divided into:
a. Aluminum heat sink
b. Copper heat sink
c. Copper and aluminum combined heat dissipation
d. Heat pipe heat sink