Thermally Conductive Plastic Enclosure for Heat Dissipation and Vibration Damping
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Solution Overview
Problem
Current solutions for electronic device mounting and enclosures that combine vibration damping with heat dissipation are often optimized for only one aspect, leading to either high manufacturing costs, inefficient cooling, or marginal performance in thermal transfer and vibration damping.
Innovation Solution
The use of thermally conductive plastics as a mounting assembly that interposes between electronic devices and supporting structures, providing both efficient heat dissipation and vibration damping, thereby eliminating the need for inefficient air exchange cooling and enabling sealed enclosures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional metal heat sinks with direct contact mounting are used, then heat dissipation is efficient, but vibration damping is poor and manufacturing cost is high
Solution Approach 1:
The patent uses composite materials consisting of thermally conductive plastic with embedded thermally conductive particles (such as aluminum oxide, boron nitride, or metal flakes) dispersed in a polymer matrix. This composite structure provides both thermal conduction pathways through the particles and vibration damping through the polymer matrix, resolving the contradiction between heat dissipation efficiency and vibration damping performance.
Solution Approach 2:
The patent changes the material parameters by selecting plastic matrices with specific thermal conductivity values (0.3-5.0 W/m·K) and adjusting the concentration, size, and distribution of thermally conductive particles. By optimizing these parameters, the material achieves sufficient thermal conduction while maintaining the viscoelastic properties needed for vibration damping.
2Reliability
If thermally conductive plastic is used for mounting, then vibration damping is improved and manufacturing cost is reduced, but thermal conduction capability was initially perceived as insufficient
Solution Approach 1:
The patent transforms ordinary plastic into a thermally conductive composite by embedding thermally conductive particles (aluminum oxide, boron nitride, metal flakes) within the polymer matrix. This creates continuous thermal conduction pathways while preserving the vibration damping characteristics of the plastic, thereby improving thermal conduction capability without sacrificing vibration damping performance.
Solution Approach 2:
The patent applies local quality enhancement by concentrating thermally conductive particles in specific regions or orientations within the plastic matrix, particularly near heat-generating components. This localized particle distribution optimizes thermal conduction where needed most while maintaining overall vibration damping properties of the mounting structure.
3Temperature
If air exchange cooling is used, then heat dissipation is achieved, but system complexity increases and sealed enclosures cannot be implemented
Solution Approach 1:
The patent enables the mounting structure itself to perform the heat dissipation function that previously required separate cooling systems. The thermally conductive plastic mounting assembly directly conducts heat away from electronic components to the enclosure or heat sink, eliminating the need for air exchange mechanisms, fans, or complex cooling channels, thereby allowing sealed enclosures.
Solution Approach 2:
The patent merges the mounting function and heat dissipation function into a single integrated component. The thermally conductive plastic mounting assembly simultaneously provides mechanical support, vibration damping, and thermal conduction, eliminating the need for separate cooling systems and enabling simplified sealed enclosure designs.
4Reliability
If separate components are used for heat dissipation and vibration damping, then each function can be optimized, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent combines multiple functions (mechanical mounting, vibration damping, and heat dissipation) into a single thermally conductive plastic mounting assembly. This integrated component eliminates the need for separate rubber mounts, metal heat sinks, and cooling channels, thereby reducing device complexity and manufacturing cost while maintaining or improving functional performance.
Solution Approach 2:
The patent creates a universal mounting component that performs multiple functions simultaneously: providing mechanical support, damping vibrations through viscoelasticity, conducting heat through embedded particles, and enabling sealed enclosures. This multi-functional design reduces the total number of components needed in the electronic device assembly.
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
This approach results in lower manufacturing costs, improved electronic device performance with longer life, higher reliability, and reduced maintenance, along with higher system density, flexibility, and improved thermal management.
Implementation Method 1
thermally conductive plastic assembly that provides for thermal conduction and vibration damping of an electronic device
Implementation Method 2
thermally conductive plastic assembly that provides for thermal conduction and vibration damping of an electronic device
Data Source
AI summary
A system and method for heat dissipation and vibration damping of electronic devices in which an assembly is formed by one or more surfaces comprised of at least one material that is a thermally conductive plastic that combines to partially or completely enclose one or more electronic devices as a physical and thermal intermediary between the electronic devices and supporting structures.