Product Details
The principle of heat sink is to increase the surface area to accelerate heat dissipation. As the material of the heat sink is a small specific heat of the metal, it absorbs heat very quickly, and at the same time, the speed of heat dissipation is relatively fast, so the heat transfer plays a rapid cooling effect.
General use of heatsinks in the electronic components and heatsink contact surface coated with a layer of thermally conductive silicone grease, so that the heat emitted by the components of more effective conduction to the heatsink, and then by the heatsink emitted into the surrounding air.
As far as the material of the heat sink is concerned, the thermal conductivity of each material is different, according to the thermal conductivity from high to low arrangement, respectively, in silver, copper, aluminum, and steel. However, silver is too expensive to use as a heat sink, so the best solution is to use copper. Although aluminum is much cheaper, obviously thermal conductivity is not as good as copper (only 50% of copper).
Our company is a professional aluminum heat sink supplier, we provide customized heat sink die casting service, and from product design to shipment, we have the most comprehensive service.
high-efficiency heat sink is an important application in the electronics industry.
- Lightweight design
The lightweight design of electronic equipment is a key trend in the modern electronics industry. Aluminum alloy shell die casting is preferred for its lightweight nature, which provides higher strength and stiffness compared to traditional materials such as steel. This allows electronic devices to be more portable without sacrificing protection.
- Excellent Thermal Conductivity
Electronic devices typically generate a lot of heat, so heat dissipation is an important issue. Aluminum alloys have excellent thermal conductivity and are able to conduct and dissipate heat quickly, helping to keep device temperatures within safe limits. This is critical to the longevity and stability of electronic equipment.
- EMI Shielding
The management of electromagnetic interference (EMI) is critical in electronic equipment. Aluminum housings have excellent EMI shielding properties that effectively block external interference and reduce the occurrence of internal interference. This is important to ensure proper operation and data integrity of electronic equipment.
- Durability and corrosion resistance
Aluminum alloy housings have excellent durability and corrosion resistance and can operate in a variety of harsh environments, including outdoor and industrial applications. This makes them ideal for outdoor electronics and industrial automation equipment.
- Customized Designs
Die-casting aluminum alloy housings allow manufacturers to create highly customized designs to meet the needs of specific applications. This flexibility allows aluminum alloy housings to accommodate electronic devices of all shapes and sizes while providing superior performance and appearance.
Aluminum alloy case die casting is growing in importance in the electronics industry, providing superior lightweight design, thermal conductivity, EMI shielding, durability, and customized designs for electronic devices. As technology advances, aluminum alloy shell die casting will continue to drive innovation in the electronics industry, providing higher quality and more reliable enclosure solutions for future electronic devices.
Why use a heatsink enclosure?
Any device has a certain loss when working, and most of the loss becomes heat. Low-power devices have small losses and do not require heat sinks. While high-power devices lose, if not to take thermal measures, the core temperature can reach or exceed the allowable junction temperature, and the device will be damaged.
Therefore, it must be added to the heat sink, the most commonly used is the power device mounted on the radiator, the use of heat sinks to dissipate the heat to the surrounding space, if necessary, plus a cooling fan to a certain wind speed to strengthen the cooling heat. In some large-scale equipment power devices are also used on the flow of cold water cooling plate, it has a better heat dissipation effect.
Heat dissipation calculation is in certain working conditions, through the calculation to determine the appropriate heat dissipation measures and heat sinks. The power device is mounted on the heat sink. Its main heat flow direction is from the tube core to the bottom of the device, through the heat sink to dissipate the heat to the surrounding space.
If there is no fan to cool at a certain airspeed, this is called natural cooling or natural convection heat dissipation.
There is a certain thermal resistance in the heat transfer process. The thermal resistance from the device core to the bottom of the device is R JC, the thermal resistance between the bottom of the device and the heat sink is R CS, and the heat sink dissipates the heat to the surrounding space as R SA, with the total thermal resistance R JA=R JC+R CS+R SA.
Aluminum alloy radiator advantages and disadvantages
Aluminum alloy radiator is one of the types of radiators that are widely used in automobiles, electronic equipment and other fields. Its main advantages and disadvantages are as follows:
Advantages:
Lightweight: The aluminum alloy radiator is lighter in weight compared with the traditional copper radiator due to the lightweight characteristics of aluminum alloy material, which can reduce the overall weight of the vehicle or equipment.
High heat dissipation efficiency: Aluminum alloy radiator has excellent heat dissipation performance, compared with the traditional copper radiator heat dissipation efficiency is higher, and can be more rapid heat dissipation out.
Simple manufacturing process: aluminum alloy radiator manufacturing process is relatively simple, has low production costs, and can be cheaper to produce a large number of products.
Good anti-corrosion: aluminum alloy radiators have excellent oxidation resistance and anti-corrosion properties, and are not prone to problems such as rust or oxidation even after prolonged use.
Disadvantages:
Relatively low strength: compared with copper radiators, aluminum alloy radiators have slightly lower strength, so reinforcement measures may be required in some special environments.
Relatively low durability: Aluminum radiators have relatively low durability, and problems such as deformation or cracks may occur after prolonged use.
Not resistant to high temperature: Aluminum radiators are less resistant to high temperatures, which may affect the performance of the radiator if used in a high-temperature environment.
Not suitable for some special occasions: The aluminum alloy radiator is not suitable for some special occasions, such as high-density electronic components assembly and other occasions.
In summary, aluminum alloy radiator has the advantages of being lightweight, having high heat dissipation efficiency, simple manufacturing process, good corrosion resistance, etc., but its strength is relatively low, durability is relatively low, not high temperatures, not suitable for some special occasions and other shortcomings also need to be noted. Therefore, in the actual application the need to be chosen and used according to the specific circumstances.
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