Vapor Chamber Heat Dissipation Module for Display Devices
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Solution Overview
Problem
Conventional heat dissipation mechanisms in display devices, relying on metal plates, are insufficient for managing increased heat generated by higher power consumption and brightness demands, necessitating a more effective cooling solution.
Innovation Solution
A heat dissipation module incorporating a vapor chamber with channels and working fluids that undergo cyclic evaporation and condensation, where the vapor chamber is designed to orient upright when the display device is in use, facilitating rapid fluid circulation and heat transfer from the light-emitting module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light sources are increased to meet users' mounting expectations for size and brightness, then illumination intensity is improved, but heat generated increases and exceeds the heat dissipation capability of metal plate-based mechanisms
Solution Approach 1:
The patent employs a vapor chamber containing working fluids that undergo cyclic phase transitions between liquid and vapor states. The liquid working fluid evaporates at the bottom surface where heat is generated, absorbs latent heat of vaporization, and the vapor rises to condense at the top surface, releasing heat. This phase change mechanism provides highly efficient heat dissipation that can handle the increased thermal load from multiple light sources while maintaining the desired brightness level.
2Ease of manufacture
If metal plate-based heat dissipation mechanisms are used, then ease of manufacture is improved, but heat dissipation efficiency becomes insufficient for high power consumption devices
Solution Approach 1:
The patent uses a vapor chamber constructed from metal materials that combine high thermal conductivity with the phase change capability of enclosed working fluids. The metal vapor chamber structure provides both mechanical strength and thermal conduction, while the internal working fluids enable efficient heat transport through phase transitions. This composite approach achieves superior heat dissipation efficiency compared to simple metal plates, while the vapor chamber can be manufactured using established vacuum sealing and welding techniques.
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 heat dissipation efficiency by promoting quick evaporation and condensation cycles of the working fluids, effectively cooling the display device and addressing the limitations of traditional metal plate-based systems.
Implementation Method 1
a plurality of working fluids undergoing cyclic evaporation and condensation in the plurality of channels
Implementation Method 2
a plurality of working fluids undergoing cyclic evaporation and condensation in the plurality of channels
Implementation Method 3
the liquid working fluids converge quickly at the bottom edge under gravity
Implementation Method 4
A heat dissipation module incorporating a vapor chamber with channels and working fluids that undergo cyclic evaporation and condensation
Data Source
AI summary
A portable electronic device includes a body and a display device connected to the body. The display device includes a display panel, an optical module, and a heat dissipation module including a vapor chamber and a light-emitting module. The vapor chamber has flow channels extending from a bottom side to a top side of the vapor chamber and working fluids capable of displacement therein. The light-emitting module is disposed at the bottom side. A rear frame element of the display device has a front bezel onto which the display panel is embedded and a rear receptacle. The front frame element is coveringly disposed at the rear frame element and presses against the display panel. First screwing elements screw the vapor chamber and the rear frame element together. Second screwing elements screw the vapor chamber, the front frame element, and the rear frame element together sequentially.