Heat Dissipation Plates with Ceramic Needle Wicks for Vapor Chambers
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Solution Overview
Problem
Existing heat dissipation technologies face challenges in efficiently managing the circulation and phase change of liquid and gas fluids within vapor chambers, leading to suboptimal thermal conductivity and heat exchange efficiency.
Innovation Solution
A heat dissipation plate incorporating a ceramic substrate with needle-shaped bodies that act as wicks, combined with a vapor chamber, facilitates the circulation of liquid and gas phases through surface tension, enhancing thermal conductivity and heat exchange efficiency by optimizing the arrangement and intersection of needle-shaped bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plate-shaped heat pipe includes a wick in its internal space, then liquid circulation is enabled, but the thermal conductivity and heat exchange efficiency are suboptimal
Solution Approach 1:
The patent uses needle-shaped porous ceramic bodies instead of traditional wicks. These needle-shaped structures provide capillary pores that enable liquid circulation while simultaneously offering high thermal conductivity pathways, thus resolving the contradiction between enabling liquid circulation and maintaining optimal thermal conductivity.
Solution Approach 2:
The invention employs composite structures combining needle-shaped porous ceramic bodies with specific arrangements. The ceramic material provides both the capillary action needed for liquid circulation and the thermal conductivity required for efficient heat exchange, eliminating the need for separate wick and heat conduction components.
2Ease of operation
If traditional wick structures are used in vapor chambers, then fluid circulation is achieved, but the thermal resistance is high
Solution Approach 1:
The needle-shaped porous ceramic bodies provide capillary pores that enable fluid circulation through capillary action while their crystalline ceramic structure offers low thermal resistance pathways, simultaneously achieving ease of fluid circulation and low thermal resistance.
Solution Approach 2:
The patent arranges needle-shaped bodies in three-dimensional configurations including intersecting arrangements. This spatial arrangement creates multiple circulation pathways and heat conduction routes, reducing thermal resistance while maintaining fluid circulation capability.
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
The configuration allows for improved heat transport and reduced thermal resistance, enabling efficient circulation and phase change of fluids, thereby enhancing overall heat exchange efficiency.
Implementation Method 1
A heat dissipation plate incorporating a ceramic substrate with needle-shaped bodies that act as wicks, combined with a vapor chamber, facilitates the circulation of liquid and gas phases through surface tension
Implementation Method 2
enabling efficient circulation and phase change of fluids
Data Source
AI summary
A heat dissipation plate includes a substrate including a first main surface and a second main surface located on a side opposite to the first main surface, and a plurality of needle-shaped bodies extending outward of the substrate from the first main surface. A positioning part where fluid is positioned is provided between respective ones of the plurality of needle-shaped bodies. A portion of the substrate is made of ceramic, the portion including at least a part of the first main surface. The needle-shaped body is a needle-shaped crystal of ceramic.