Cooling fin for computer radiator

Abstract

The invention discloses a cooling fin for a computer radiator. The cooling fin for the computer radiator comprises a damp layer at the outermost layer, a heat-conducting silicone grease at the middle layer and a matrix at the innermost layer; the damp layer comprises coal tar pitch and polyurethane; the matrix is aluminum alloy, brass or bronze, the damp layer occupies 11%-15% of the total component of the cooling fin for the computer radiator, the heat-conducting silicone grease occupies 5%-6% of the total component of the cooling fin for the computer radiator, and the matrix occupies 78%-86% of the total component of the cooling fin for the computer radiator. The invention provides a cooling fin for the computer radiator. The cooling fin has the advantages of being high in strength, resistant in high voltage and strong in corrosion resistance.

Description

technical field [0001] The invention relates to a cooling fin used for a computer radiator. Background technique [0002] As far as the heat sink material is concerned, the thermal conductivity of each material is different, and the thermal conductivity is arranged from high to low, namely silver, copper, aluminum, and steel. However, it would be too expensive to use silver as a heat sink, so the best solution is to use copper. Although aluminum is much cheaper, it obviously does not conduct heat as well as copper (only about 50% of copper). [0003] At present, the commonly used heat sink materials are copper and aluminum alloy, both of which have their own advantages and disadvantages. Copper has good thermal conductivity, but it is expensive, difficult to process, too heavy (many pure copper radiators exceed the weight limit of the CPU), small in heat capacity, and easy to oxidize. However, pure aluminum is too soft to be used directly. Only the aluminum alloy used can...

AI Technical Summary

Problems solved by technology

Copper has good thermal conductivity, but it is more expensive, difficult to process, too heavy (many pure copper radiators exceed the weight limit of the CPU), small heat capacity, and easy to oxidize

However, pure aluminum is too soft to be used directly. Only the aluminum alloy used can provide sufficient hardness. The advantages of aluminum alloy are low price and light weight, but the thermal conductivity is much worse than that of copper.