How to choose a finned heat sink effectively
Release time:
2022-06-13 12:02
Source:
As a professional manufacturer of finned radiators, we will diligently organize and publish various product-related knowledge to serve you wholeheartedly. Since there are many manufacturers in the market, everyone encounters a lot of questions when making a choice. Below, we will discuss how to better select finned radiators.
As a professionalfin heat sinkmanufacturer, we will diligently organize and publish various product-related knowledge to serve you wholeheartedly. Because there are many manufacturers on the market, everyone encounters many issues when making a choice. Let's discuss how to better select a fin heat sink.
The fin heat sink is currently a relatively common product, occupying a small area, making it easy to arrange and install. Since it is assembled in a way that connects parallel to the motherboard, it is basically compatible with all sizes of computer cases, making it a type that can be safely used in medium and small cases. The larger the surface area of the fin heat sink, the better the cooling effect; the smaller the surface area, the worse the cooling effect. Moreover, the transaction price of the fin heat sink is related to the selected specifications, quantity, delivery method, and payment method. Therefore, it is recommended that everyone pay attention here: fin heat sinks usually use pure aluminum or 6063 alloy for manufacturing. Both materials have good thermal conductivity compared to mixed aluminum, which has several times worse thermal conductivity; also, since more than half of the cost of a fin heat sink is material cost, mixed aluminum is cheaper. Therefore, when purchasing, consider the loss of cooling performance caused by material.
In addition, when selecting a fin heat sink, it is essential to determine its electronic components, clarify its working parameters, working conditions, size, and installation method. It is recommended to choose a fin heat sink with a base plate slightly larger than the component mounting surface because the installation space is limited. The cooling mainly relies on air convection; if it exceeds the contact surface with the components, the effectiveness of the fin heat sink decreases as the distance from the components increases. For single-rib designs, if the required width of the heat sink is missing in the table, you can choose a heat sink with double or triple width and cut it accordingly.
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How much do you know about finned heat sinks?
The characteristics of finned heat sinks are that the fins break through the original proportional limitations, resulting in good heat dissipation effects, and different materials can be used to make the fins. The drawbacks are also quite obvious, as the heat sink and the base are bonded with thermal paste and solder, which can cause interface resistance issues that affect heat dissipation. To improve these shortcomings, two new technologies have been applied in the field of heat sinks.
Introduction to the characteristics of finned heat sinks.
The finned heat sink is a device used for electronic components that are prone to heating in electrical appliances. It is made of aluminum alloy, yellow or bronze, and comes in plate, sheet, or multi-sheet shapes. For example, the CPU in a computer requires a considerable size, and the power tubes, line tubes, and amplifier tubes in televisions all need to dissipate heat. Typically, a layer of thermal grease should be applied to the contact surface of the electronic components to more effectively conduct the heat generated by the components, which is then dissipated into the surrounding air.
Introduction to the advantages of finned heat sinks
The finned heat sink primarily achieves heat dissipation through conduction, involving dielectric heat sinks that are in direct contact with the processor. After absorbing heat, it dissipates through convection. During the convection process, the area is mainly determined by the surface area of the fins. Common methods used in the industry include: increasing the number of fins and increasing the length of the fins. One of the reflected data points is the 'thickness ratio', which is the ratio of fin thickness to its height.
Introduction to finned heat sinks
The finned heat sink primarily achieves heat dissipation through conduction, involving a medium heat sink that is in direct contact with the processor. After absorbing heat, the heat sink dissipates it through convection. In the convection heat dissipation process, the heat dissipation area is mainly determined by the surface area of the heat dissipation fins. The larger the surface area, the better the heat dissipation effect. The smaller the surface area, the worse the heat dissipation effect.
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