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A high heat transfer aluminum-based composite heat dissipation material for LEDs

A technology of aluminum-based composite and heat-dissipating materials, applied in the field of heat-dissipating materials for lamps and lanterns, can solve problems such as cost constraints and insufficient insulation performance, and achieve the effects of improved sintering performance, fast heat transfer, and compact structure

Active Publication Date: 2016-06-08
YANYANG LAMP SET TIANCHANG CITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing LED heat dissipation materials are mainly made of metal materials such as aluminum and copper. In actual use, there are disadvantages such as cost limitations and insufficient insulation performance. Therefore, it is necessary to improve the formula of the material to achieve a better heat dissipation effect. , improve the performance of the lamps and prolong the service life

Method used

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Embodiment

[0011] The LED heat dissipation material in this embodiment is made of the following raw materials in parts by weight: graphite 5, boron nitride 14, aluminum nitride 12, aluminum powder 85, aluminum oxide 8, kyanite powder 2, copper sulfate 2, ferrous sulfate 3 , Silver Phosphate 2, Potassium Pyrophosphate 2, White Sugar 4, Auxiliary 5.

[0012] The auxiliary agent is made of the following raw materials in parts by weight: polyaluminum sulfate 5, animal bone 10, sodium sand 3, polyimide 5, silver-coated copper powder 10, magnesium oxide 14, light magnesium carbonate 5, prepared The method is as follows: first calcinate the animal bone at 800-900°C for 12 hours, then cool it for later use, then dissolve polyaluminum sulfate in an appropriate amount of water to prepare an aqueous solution with a concentration of 6%, and put the calcined animal bone and other remaining ingredients into In the solution, mix and stir to disperse for 3 hours, concentrate and dry, grind to 400-mesh f...

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PUM

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Abstract

The invention relates to heat dissipation materials for lamps, in particular to a high heat transfer aluminum-based composite heat dissipation material for LEDs and a production method thereof. The heat dissipation material is made of the following raw materials in parts by weight: graphite 4-6, boron nitride 12-16, Aluminum nitride 10-12, aluminum powder 80-85, aluminum oxide 5-8, kyanite powder 1-2, copper sulfate 1-3, ferrous sulfate 2-3, silver phosphate 1-3, potassium pyrophosphate 1-2, white sugar 2-4, additives 4-5; the heat dissipation material of the present invention combines the advantages of aluminum, boron nitride, aluminum nitride, graphite, additives and other components, and has good thermal conductivity and insulation performance , and grind all the materials in a mixed aqueous solution of ferrous sulfate, potassium pyrophosphate, and white sugar, so that the ball milling between raw materials is more complete and the sintering performance of the material is improved. The heat dissipation material has a dense structure, smooth surface, waterproof and moisture-proof, and heat conduction High coefficient, fast heat transfer, good heat dissipation efficiency can still be maintained after long-term use, can effectively protect LED lamps, and greatly extend the service life of lamps.

Description

technical field [0001] The invention relates to a heat dissipation material for lamps, in particular to a high heat transfer aluminum-based composite heat dissipation material for LEDs and a production method thereof. Background technique [0002] LED is called the fourth-generation light source, which has the advantages of energy saving, environmental protection, safety, low energy consumption, and high brightness. It is widely used in daily life. The heat dissipation performance of the LED lamp itself is very important, which directly affects the service life of the lamp. and lighting effects. Existing LED heat dissipation materials are mainly made of metal materials such as aluminum and copper. In actual use, there are disadvantages such as cost limitations and insufficient insulation performance. Therefore, it is necessary to improve the formula of the material to achieve a better heat dissipation effect. , Improve the performance of lamps and prolong their service life...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C32/00C22C1/06C22C1/10
Inventor 周仁林王盼黄国仁吴有军
Owner YANYANG LAMP SET TIANCHANG CITY