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Novel graphite nanocarbon radiating fin

A nano-carbon and heat sink technology, applied in electrical components, electrical solid devices, circuits, etc., can solve the problems of weak withstand voltage, low emissivity, poor performance of graphite heat sinks, etc. Effect

Pending Publication Date: 2019-09-27
深圳市大联社电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a new type of graphite nano-carbon heat sink, which solves the problems of poor performance, weak withstand voltage and low emissivity of existing graphite heat sinks

Method used

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  • Novel graphite nanocarbon radiating fin
  • Novel graphite nanocarbon radiating fin
  • Novel graphite nanocarbon radiating fin

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A new graphite nano-carbon heat sink, comprising a graphite substrate 1, the upper surface of the graphite substrate 1 is coated with an upper nano-carbon layer 2, the lower surface of the graphite substrate 1 is coated with a lower nano-carbon layer 3, and the graphite substrate 1 Grooves 4 are provided on the upper and lower surfaces of the upper and lower nanocarbon layers 2 and 3, and protrusions 5 matching the grooves 4 are arranged on the upper and lower nanocarbon layers 3. Groove 4 is provided with several, and several grooves 4 are equidistantly arranged in parallel on the upper and lower surfaces of graphite substrate 1, and the thickness of graphite substrate 1 is set to 1-2 millimeters, and the thickness of upper nanocarbon layer 2 and lower nanocarbon layer 3 The thicknesses are all set to 20 microns, and the depth of the groove 4 is set to 20 microns.

[0032] The preparation steps of the novel heat sink are as follows:

[0033] Step 1: Process a pluralit...

Embodiment 2

[0040] A novel graphite nanocarbon heat sink, comprising a graphite substrate 1, an upper nanocarbon layer 2 coated on the upper surface of the graphite substrate 1, a lower nanocarbon layer 3 coated on the lower surface of the graphite substrate 1, and a graphite substrate 1 The thickness is set to 1-2 millimeters, and the thickness of the upper nanocarbon layer 2 and the lower nanocarbon layer 3 are both set to 20 microns.

[0041] The preparation steps of the novel heat sink are as follows:

[0042] Step 1: Put the graphite base material 1 into the cleaning tank for ultrasonic cleaning for 5 minutes, pick it up after the ultrasonic cleaning, rinse it with distilled water for 1 minute, and then put the graphite base material 1 into the drying box for drying;

[0043] Step 2: adding carbon nanotubes to deionized water or pure ethanol, and then ultrasonically treating for 60 minutes to obtain nanocarbon suspension;

[0044] Step 3: adding the nano-carbon suspension into the s...

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Abstract

The invention discloses a novel graphite nanocarbon cooling fin. The graphite nanocarbon cooling fin comprises a graphite base body, wherein the upper surface of the graphite base body is coated with an upper nano carbon layer, and the lower surface of the graphite base body is coated with a lower nano carbon layer; the upper surface and the lower surface of the graphite base body are both provided with grooves, and the upper nano carbon layer and the lower nano carbon layer are both provided with protrusions matched with the grooves. By arranging the graphite substrate, the upper nano carbon layer, the lower nano carbon layer, the grooves and the bulges, the graphite nanocarbon cooling fin solves the problems of poor performance, weak voltage resistance and low radiance of the existing graphite radiating fin.

Description

technical field [0001] The invention relates to the technical field of graphite heat sinks, in particular to a novel graphite nano-carbon heat sink. Background technique [0002] Graphite heat sink, also known as heat-conducting graphite sheet, is a brand-new heat-conducting and heat-dissipating material. It has a unique grain orientation and conducts heat evenly in two directions. The lamellar structure can well adapt to any surface and shield heat sources and components at the same time To improve the performance of consumer electronic products, carbon is a non-metallic element, but it has the electrical conductivity and thermal conductivity of metal materials, and has the same plasticity as organic plastics, and also has special thermal properties, chemical stability, lubrication and paintability. Coated on the solid surface, etc. have some good process properties. Therefore, thermally conductive graphite has been widely used in many fields such as electronics, communicat...

Claims

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Application Information

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IPC IPC(8): H01L23/367H01L23/373
CPCH01L23/3672H01L23/373H01L23/3735
Inventor 刘华明
Owner 深圳市大联社电子有限公司
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