Dual-Layer Enclosure for Portable Data Storage Heat Management
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Solution Overview
Problem
Portable data storage devices face challenges in managing heat dissipation efficiently while maintaining user safety, as high thermal conductivity materials used for heat transfer can cause discomfort and damage due to excessive heat absorption by the user's hand, and low conductivity materials compromise heat dispersion.
Innovation Solution
A dual-layer design is implemented, where a high thermal conductivity material (e.g., aluminum) forms the enclosure wall to efficiently disperse heat, and a low thermal conductivity material (e.g., liquid silicone rubber) covers the exterior to reduce heat transfer to the user's hand, while maintaining effective heat transfer to the ambient environment through natural convection and radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high thermal conductivity material is used for heat transfer, then heat dissipation efficiency is improved, but user safety deteriorates due to excessive heat absorption
Solution Approach 1:
The enclosure is divided into two distinct layers: an interior layer made of high thermal conductivity material (aluminum) for heat dissipation, and an exterior layer made of low thermal conductivity material (liquid silicone rubber) for thermal insulation. This segmentation allows each layer to perform its specific thermal function independently, resolving the contradiction between heat dissipation efficiency and user safety.
Solution Approach 2:
The patent employs a composite structure combining two materials with opposite thermal conductivity properties. The aluminum interior layer provides excellent heat conduction to disperse internal heat, while the liquid silicone rubber exterior layer acts as a thermal barrier to protect the user's hand from excessive heat, achieving both heat dissipation efficiency and user safety simultaneously.
2Object-affected harmful factors
If low thermal conductivity material is used for exterior, then user safety is improved, but heat dissipation efficiency deteriorates
Solution Approach 1:
The enclosure is divided into two distinct layers: an interior layer made of high thermal conductivity material (aluminum) for heat dissipation, and an exterior layer made of low thermal conductivity material (liquid silicone rubber) for thermal insulation. This segmentation allows each layer to perform its specific thermal function independently, resolving the contradiction between heat dissipation efficiency and user safety.
Solution Approach 2:
The patent employs a composite structure combining two materials with opposite thermal conductivity properties. The aluminum interior layer provides excellent heat conduction to disperse internal heat, while the liquid silicone rubber exterior layer acts as a thermal barrier to protect the user's hand from excessive heat, achieving both heat dissipation efficiency and user safety simultaneously.
3Productivity
If high thermal conductivity material is used, then heat dispersion is improved, but device complexity increases due to dual-layer design
Solution Approach 1:
The patent integrates multiple functions into the enclosure structure itself. The dual-layer enclosure combines thermal conduction (interior aluminum layer) and thermal insulation (exterior liquid silicone rubber layer) functions within a single structural component, eliminating the need for separate heat dissipation mechanisms and reducing overall device complexity.
Solution Approach 2:
The enclosure serves multiple functions simultaneously: it provides structural protection, enables heat dissipation through the aluminum interior layer, and offers thermal insulation through the liquid silicone rubber exterior layer. This multi-functionality reduces the need for additional components, thereby reducing device complexity while maintaining effective heat dispersion.
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 design effectively manages heat dissipation, maintaining internal component temperatures and user safety by minimizing heat absorption while allowing efficient thermal transfer, thus achieving a balance between durability and performance in compact, vent-less devices.
Implementation Method 1
an enclosure wall made of a first material and having a thermal conductivity... The heat energy of the at least one computer component is transferred to the ambient environment
Implementation Method 2
an exterior layer made of a second material and has a thermal conductivity that is less than a thermal conductivity of the first material... to reduce heat transfer to the user's hand
Implementation Method 3
allowing efficient thermal transfer through natural convection and radiation
Implementation Method 4
allowing efficient thermal transfer through natural convection and radiation
Data Source
AI summary
A portable data storage device includes at least one component that generates heat, an enclosure wall made of a first material and having a thermal conductivity and an exterior layer. The enclosure wall surrounds the at least one computer component and includes outer and inner boundaries. The exterior layer is made of a second material and has a thermal conductivity that is less than the thermal conductivity of the first material. The exterior layer is covers the outer boundary of the enclosure wall and includes an outer surface and an inner boundary. The outer boundary of the enclosure wall interfaces with the inner boundary of the exterior layer so that the outer surface of the exterior layer is in direct contact with the environment and the outer boundary of the enclosure wall is not. Heat is transferred to the environment at the outer surface of the exterior layer.