Insulation shielding composite film capable of storing heat and having high safety

Abstract

The invention provides an insulation shielding composite film capable of storing heat and having high in safety. The film is formed by compositing an upper thermal-conducting and insulating polyimidefilm, a nano energy storage graphite sheet and a lower thermal-conducting and insulating polyimide film, the nano energy storage graphite sheet is coated between the upper thermal-conducting and insulating polyimide film and the lower thermal-conducting insulating polyimide film, the nano energy storage graphite sheet is respectively composited with the upper thermal-conducting and insulating polyimide film and the lower thermal-conducting and insulating polyimide film through an upper heat-conducting adhesive layer and a middle thermal-conducting adhesive layer, the nano energy storage graphite sheet is formed by compositing a conductive graphite sheet and a nanometer phase change material. The composite film has excellent thermal conductivity and insulating property, good shielding andheat storage functions, and can lower the temperature of the electronic equipment effectively and prolong the service life of the electronic equipment. Furthermore, the nano energy storage graphite sheet is located between the thermal-conducting and insulating polyimide films to form a 'sandwich' structure, and the safety of the composite film is improved. The composite film has characteristics ofbeing simple in structure and easy to use.

Description

[0001] 【Technical field】 [0002] The invention relates to a conductive and heat-conducting composite material, in particular to an insulating and shielding composite film capable of storing heat and having high safety, which has good thermal conductivity and insulation performance, has shielding and heat storage functions, and can avoid short circuit during use. [0003] 【Background technique】 [0004] With the rapid development of the electronics industry, electronic devices such as personal computers, mobile phones, servers, GPS navigation devices and other household electronic devices are becoming more and more popular. At the same time, electronic devices are getting smaller and smaller, with more and more functions. stronger and stronger. This requires that the internal chip or electronic module of the electronic device has powerful functions and runs faster and faster, and the possibility of electromagnetic wave interference caused by it is greater and the heat generated...

AI Technical Summary

Problems solved by technology

However, the short and light space in electronic equipment cannot or is difficult to conduct heat away simply by setting up fans, and the useless electromagnetic waves generated also wander in places with gaps.

When the chip or electronic module is in a high temperature environment, the working performance will be reduced and the working life will be shortened; and the useless electromagnetic waves will interfere with the normal operation of the electronic module, and may cause unnecessary troubles to the environment

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