Electrographite/PET composite cooling fin and preparation method thereof

Abstract

The invention discloses an electrographite / PET composite cooling fin. The electrographite / PET composite cooling fin comprises a PET film layer and electrographite layers distributed on the upper and lower faces of the PET film layer, wherein the electrographite layers are uniformly distributed on the upper and lower faces of the PET film layer in an attached mode with mucilage glue, and the total thickness of the composite cooling fin ranges from 20 micrometers to 330 micrometers. In this way, the electrographite / PET composite cooling fin has a good heat conduction effect as a good heat conduction carrier and also has a strong electromagnetic shielding function.

Description

technical field [0001] The invention relates to the field of heat dissipation and electromagnetic shielding of heating components in electronic products, in particular to an artificial graphite / PET composite heat sink and a preparation method thereof. Background technique [0002] In the prior art, with the increase in the demand for mobile phones, tablet computers, or notebook computers and TVs and the increase in the use of display screens, the demand for high brightness of display screens increases the use of light-emitting diodes. In order to improve the operation of various electronic products Speed, at present, the CPU in various electronic products will emit a lot of heat due to high-speed operation, which also increases the heat generation of the device. At the same time, the battery power consumption increases, and the battery capacity also increases, which makes the display device heat due to increased energy consumption What's more, if the heat generation cannot b...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, with the increase in the demand for mobile phones, tablet computers, or notebook computers and TVs and the increase in the use of display screens, the demand for high brightness of display screens increases the use of light-emitting diodes. In order to improve the operation of various electronic products Speed, at present, the CPU in various electronic products will emit a lot of heat due to high-speed operation, which also increases the heat generation of the device. At the same time, the battery power consumption increases, and the battery capacity also increases, which makes the display device heat due to increased energy consumption More, if the heating cannot be effectively controlled, the high temperature will not only make the CPU run out of order or lose its function, but also shorten the service life of the heating equipment

At the same time, the functions of display devices are increasing nowadays, and the parts used are also diversified. The number is large and the volume is smaller. The available space of the display device is more insufficient, and the distance between the components is closer, which is prone to interference.

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