Flexible Thermal Coupling for Heat Pipe Movement
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Solution Overview
Problem
Conventional thermal management techniques fail to accommodate movements of heat pipes or heat sinks in devices, leading to potential damage and increased failure rates of integrated circuits and other components due to relative motion during physical movements.
Innovation Solution
The implementation of a flexible directional thermal interface material (DTIM) with a high-conductivity orientation, allowing the heat pipe to maintain thermal coupling with both the heat sink and the integrated circuit during movements, ensuring continuous heat transfer and reducing the risk of component damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional rigid thermal coupling arrangement is used, then thermal transfer efficiency is maintained, but the integrated circuit and components are vulnerable to damage during device movement
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a rigid thermal coupling system to a flexible one. The flexible DTIM allows the heat pipe to move relative to the integrated circuit while maintaining thermal contact, enabling the system to adapt to dynamic conditions during device movement without compromising component reliability.
Solution Approach 2:
The patent utilizes a flexible directional thermal interface material (DTIM) that functions as a flexible thin film. This flexible DTIM maintains thermal coupling between the heat pipe and integrated circuit while accommodating relative movements, directly addressing the contradiction between maintaining reliability and allowing movement adaptability.
2Use of energy by moving object
If the heat pipe is fixed rigidly to maintain thermal coupling, then heat transfer efficiency is maximized, but movement of the device causes damage to the integrated circuit
Solution Approach 1:
The flexible DTIM serves as a flexible thin film that maintains thermal coupling while allowing movement. This flexible interface material enables continuous heat transfer from the integrated circuit to the heat pipe without rigid constraints, preventing physical damage during device movement while preserving thermal efficiency.
Solution Approach 2:
The flexible DTIM acts as an intermediary material between the heat pipe and integrated circuit. It mediates the interaction by maintaining thermal contact while accommodating relative motion, thus enabling heat transfer efficiency without transmitting harmful mechanical forces to the components.
3Adaptability or versatility
If a flexible thermal interface material is used to accommodate movement, then component damage is reduced, but thermal transfer efficiency may be compromised
Solution Approach 1:
The flexible DTIM is specifically designed as a directional thermal interface material that maintains high thermal conductivity in the direction of heat flow while providing flexibility for movement accommodation. This specialized flexible film resolves the contradiction by enabling both adaptability and efficient heat transfer.
Solution Approach 2:
The flexible DTIM represents a composite material design that combines flexibility with high thermal conductivity. This composite structure allows the material to accommodate mechanical movement while maintaining effective heat transfer, addressing both requirements simultaneously.
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 solution enhances the operational reliability and lifespan of utility management devices by maintaining thermal coupling during physical movements, reducing the likelihood of component failure and associated maintenance costs.
Implementation Method 1
The flexible DTIM may have a high-conductivity orientation. The high-conductivity orientation may provide a high rate of heat transfer between a first surface of the flexible DTIM and a second surface of the flexible DTIM
Data Source
AI summary
A device in a utility distribution system may comprise a housing, a heat source, a first heat sink, a second heat sink, a heat pipe, and a flexible directional thermal interface material (“DTIM”) with a high-conductivity orientation. The first heat sink may be thermally coupled to the heat source. The second heat sink may be attached to the first heat sink, and the flexible DTIM and the heat pipe may be arranged between the first and second heat sinks. The flexible DTIM may be thermally coupled with the first heat sink and the heat pipe. The heat pipe may be capable of movements with respect to the flexible DTIM. During the movements, the heat pipe may maintain the thermal coupling with the flexible DTIM, such that heat present in the first heat sink may be transferred to the heat pipe via the high-conductivity orientation of the flexible DTIM.