Heat Pipe Mounting Structure That Protects Capillary Integrity
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Solution Overview
Problem
Heat pipes used in intelligent terminal devices often suffer from deformation and reduced heat transfer efficiency during the mounting process due to the need for pressure application, which damages the porous capillary structure and reduces their effectiveness.
Innovation Solution
The integration of ineffective portions without porous capillary structures as mounting portions allows for pressure application only to these areas, ensuring the integrity of the capillary structure and maintaining heat conducting capability, while also using adhesive accommodating spaces to secure the heat pipe without deforming it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure is applied to the heat pipe body for mounting, then the heat pipe can be fastened to the housing, but the porous capillary structure is damaged and heat transfer efficiency is reduced
Solution Approach 1:
The heat pipe is divided into two functional parts: the heat pipe body with porous capillary structure for heat transfer, and the ineffective portion without capillary structure for mounting. This segmentation allows pressure to be applied only to the ineffective portion during mounting, protecting the capillary structure in the heat pipe body from damage while ensuring reliable fastening to the housing.
Solution Approach 2:
Different portions of the heat pipe have different structural qualities: the heat pipe body has a porous capillary structure optimized for heat transfer, while the ineffective portion has a solid structure optimized for withstanding mounting pressure. This local differentiation allows each part to perform its specific function without compromising the other.
2Manufacturing precision
If the ineffective end length is reduced to increase valid heat conducting length, then heat conducting efficiency is improved, but the heat pipe becomes more susceptible to deformation during mounting
Solution Approach 1:
The heat pipe is segmented into the heat pipe body and the ineffective portion, where the ineffective portion serves as a dedicated mounting zone. This allows the heat pipe body to be optimized for heat conduction with minimal ineffective length, while the ineffective portion provides sufficient length for reliable mounting without compromising heat transfer efficiency.
Solution Approach 2:
The ineffective portion acts as an intermediary element between the heat pipe body and the housing. It absorbs the mechanical stress of mounting operations, protecting the heat pipe body from deformation while enabling secure attachment to the housing through adhesive bonding.
3Reliability
If adhesive is applied to the heat pipe body for mounting, then the heat pipe can be bonded to the housing, but the heat pipe body deforms and mounting fails
Solution Approach 1:
The heat pipe is divided into the heat pipe body and the ineffective portion, with the ineffective portion designated as the mounting location. Adhesive is applied only to the ineffective portion, which has a rigid structure that maintains shape stability during bonding, while the heat pipe body with its delicate porous capillary structure remains undeformed and functional.
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 enhances the heat transfer efficiency and reliability of heat pipes by preventing deformation and damage during mounting, improving the overall heat dissipation capability of terminal devices.
Implementation Method 1
a porous capillary structure is attached on an inner wall of a heat pipe body, and can function to accelerate a circulation speed of evaporation and condensation of the working substance
Implementation Method 2
a heat pipe technology that uses a phase change to achieve efficient heat transfer is developed
Implementation Method 3
evaporation and condensation of the working substance at cold and hot ends
Implementation Method 4
evaporation and condensation of the working substance at cold and hot ends
Implementation Method 5
a passive heat transfer element with a high heat conductivity, and uses a fast heat transfer property of a phase-change medium and a heat conducting principle
Data Source
AI summary
A heat pipe, a heat dissipation module, and a terminal device are disclosed. The heat pipe includes a heat pipe body and an ineffective portion that is integrally formed with the heat pipe body when the heat pipe is manufactured, where an inner side of a pipe wall of the heat pipe body has a porous capillary structure layer, the ineffective portion is located in at least a part of the periphery of the heat pipe body, and the ineffective portion is used as a mounting portion for fastening the heat pipe to another object. In a mounting process, a pressure needs to be applied only to the ineffective portion, so that the heat pipe body is not obviously affected. In this way, integrity of the porous capillary structure layer inside the heat pipe body is ensured while the heat pipe is fastened.