Hybrid Insulation Sheet for Electronic Equipment Heat Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current insulation materials for electronic devices, such as mobile phones, fail to effectively dissipate heat generated by high-performance components, leading to overheating, damage to components, and potential harm to users due to inadequate insulation and heat radiation performance, especially in thin and lightweight designs.
Innovation Solution
A hybrid insulation sheet comprising a radiating layer and an insulating layer, where the radiating layer spreads heat horizontally using conductive materials like Cu, Al, or Ag, and the insulating layer, made of a porous nano-fiber web with fine pores, suppresses heat transfer vertically, maintaining low temperatures and preventing heat from reaching the outside.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single material is used for insulation, then material selection is simple, but it is difficult to satisfy both flexibility and insulation performance requirements simultaneously
Solution Approach 1:
The patent employs a composite material structure consisting of a flexible substrate layer and an insulating layer. The substrate provides flexibility and mechanical strength, while the insulating layer (made of materials like polyethylene terephthalate, polypropylene, or polystyrene) provides thermal insulation. This composite approach allows the insulation sheet to simultaneously achieve both flexibility and high insulation performance, resolving the contradiction between adaptability and material complexity.
2Temperature
If insulation performance is prioritized, then thermal insulation is improved, but flexibility and bendability are reduced
Solution Approach 1:
The insulation sheet is segmented into two distinct functional layers: a flexible substrate layer and an insulating layer. The substrate layer (made of materials like polyimide, vinyl chloride, or ethylene propylene diene monomer) maintains flexibility and bendability, while the insulating layer provides thermal insulation. This segmentation allows each layer to optimize its specific function without compromising the other, enabling the overall structure to achieve both high insulation performance and flexibility.
3Strength
If adhesive strength is increased to prevent peeling, then bonding performance is improved, but the adhesive may affect food safety
Solution Approach 1:
The adhesive is applied locally only at the edges of the insulating layer, rather than across the entire surface. This localized application provides sufficient bonding strength to prevent peeling at the critical edges where delamination is most likely to occur, while minimizing the total amount of adhesive used. The reduced adhesive quantity and localized placement ensure food safety requirements are met while maintaining adequate bonding performance.
4Strength
If adhesive is applied to enhance bonding, then peeling resistance is improved, but adhesive outgassing and food safety issues arise
Solution Approach 1:
The insulating layer is made of a porous material with controlled porosity (30-80%). This porous structure allows for breathability and reduces the accumulation of outgassed substances from the adhesive. The porous structure facilitates the dissipation of any gases or volatiles that may be generated by the adhesive, thereby reducing outgassing issues while maintaining peeling resistance. Additionally, the porous structure reduces the overall adhesive quantity needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The hybrid insulation sheet effectively dissipates heat without increasing device thickness, preventing component deterioration and user discomfort by maintaining surface temperatures and reducing the risk of low-temperature burns.
Implementation Method 1
a porous layer comprising a porous foam sheet or porous fibrous material
Implementation Method 2
Hybrid insulation sheet and electronic equipment comprising same... excellent insulation performance
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
Provided are an insulation sheet and an electronic apparatus using the same. The insulation sheet includes: a radiating layer that spreads and radiates heat generated from a heat generating component of an electronic apparatus; and an insulating layer that suppresses the heat saturated in the radiating layer from being delivered to the outside of the electronic apparatus.