Flexible Heat Pipe for Bendable Device Thermal Management
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Solution Overview
Problem
Existing heat dissipation devices for bendable devices, such as wearable terminals and smartphones, have a poor heat dissipation effect due to their design limitations, which can lead to skin scalding from centralized heat sources.
Innovation Solution
The use of flexible heat pipes with alternating rigid and flexible parts at the condensation ends and a single rigid part at the evaporation end, connected in various configurations, including parallel and series, to enhance heat dissipation across multiple bent areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible heat pipe with a single flexible body section is used, then the heat pipe can be bent within a specific angle range, but the evaporation section and condensation section become invalid after bending and cannot perform heat dissipation
Solution Approach 1:
The heat pipe is divided into multiple sections: a flexible body section L2 with alternating rigid parts (21, 22) and flexible parts (23, 24), allowing the evaporation section L1 and condensation section L3 to maintain their functional integrity while enabling the overall structure to be bent within a specific angle range without invalidating the heat dissipation function
Solution Approach 2:
Different sections of the heat pipe have different properties: the evaporation section L1 and condensation section L3 are designed as rigid parts to ensure functional effectiveness, while the flexible body section L2 contains alternating rigid and flexible parts to provide both structural support and bending capability, with each section optimized for its specific role
2Adaptability or versatility
If existing flexible heat pipe designs are used in bendable devices with multiple bent areas, then the device can achieve flexibility, but the heat dissipation effect deteriorates due to limited bending capability
Solution Approach 1:
The heat pipe structure is segmented into multiple rigid parts (21, 22) and flexible parts (23, 24) arranged alternately in the flexible body section L2, enabling the heat pipe to adapt to bendable devices with multiple bent areas while maintaining effective heat dissipation across all sections
Solution Approach 2:
The heat pipe incorporates flexible parts (23, 24) that allow dynamic bending and adaptation to different device configurations, while the rigid parts (21, 22) maintain structural integrity and heat dissipation functionality, creating a dynamically adaptable thermal management system
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 configuration allows for effective heat dissipation across bendable devices, reducing the risk of skin scalding by distributing heat evenly and improving the overall heat dissipation performance.
Implementation Method 1
The apparatus includes an evaporator region, a condenser region, and a capillary region. The evaporator region includes one or more hot point elements used to transfer heat from a heat source to a transport fluid. The transport fluid changes state to a vapor when heat is applied to the transport fluid. The vapor travels to the condenser region via vapor channels and is condensed to a fluid once again by transferring heat from the vapor to a heat sink.
Implementation Method 2
The transport fluid changes state to a vapor when heat is applied to the transport fluid. The vapor travels to the condenser region via vapor channels and is condensed to a fluid once again by transferring heat from the vapor to a heat sink.
Implementation Method 3
The condensed fluid is then returned to the evaporator region by way of capillary forces and capillaries formed in a capillary structure.
Data Source
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AI summary
An intelligent terminal heat dissipation apparatus and an intelligent terminal are disclosed. The intelligent terminal heat dissipation apparatus includes at least one flexible heat pipe, where two ends of the flexible heat pipe are condensation ends (201), the middle of the flexible heat pipe is an evaporation end (202), the condensation end includes one or more heat pipe rigid parts and one or more heat pipe flexible parts, the one or more heat pipe rigid parts and the one or more heat pipe flexible parts of the condensation end are arranged alternately, the evaporation end includes at least one heat pipe rigid part, and an intelligent terminal body (53) is mounted on the evaporation end. By using the intelligent terminal heat dissipation apparatus, flexible heat dissipation is implemented for a bendable device, thereby resolving a technical problem that a heat dissipation effect is poor when heat is dissipated for a bendable device having many bent areas.