Vapor Chamber Ring Structure for Screw-Induced Seal Failure
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Solution Overview
Problem
Conventional vapor chambers are fragile due to thin plates and pressure differences, making them susceptible to damage from external forces and screw installation, which can break the vacuum and cause the chamber to fail.
Innovation Solution
A vapor chamber design featuring a first and second plate with annular protrusions, ring structures, and capillary structure layers that maintain the seal even under external stress, such as from screws or drilling, by encircling and sealing the holes and protrusions with ring structures and capillary layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vapor chamber space between the two plates is made as thin as possible to reduce thermal resistance, then heat dissipation efficiency is improved, but the mechanical strength decreases and the chamber becomes fragile
Solution Approach 1:
The patent employs composite construction by joining two plates together to form the vapor chamber structure. This composite approach allows the chamber to maintain thin plate thickness for thermal efficiency while the combined structure provides enhanced mechanical strength and stability compared to single-plate designs.
2Reliability
If the plates are made as thin as possible to reduce thermal resistance, then heat transmission efficiency is improved, but the plates become weak and cannot withstand external force
Solution Approach 1:
The patent employs composite construction by joining two plates together to form the vapor chamber structure. This composite approach allows the chamber to maintain thin plate thickness for thermal efficiency while the combined structure provides enhanced mechanical strength and stability compared to single-plate designs.
Solution Approach 2:
The vapor chamber is divided into two separate plates that are joined together, with each plate bearing a portion of the mechanical load. This segmentation allows the plates to be optimized for thermal conductivity while the distributed structure provides mechanical support.
3Ease of operation
If holes are formed within the joined portions of the plates to allow screw mounting, then ease of installation is improved, but the sealed portion may break under force from stamping, drilling, or screw pressure
Solution Approach 1:
The patent incorporates reinforcement structures at the locations where holes will be formed before the actual hole creation process. This pre-reinforcement cushions against the stresses of stamping, drilling, and screw installation, preventing the sealed portions from breaking and maintaining vacuum integrity throughout the installation process.
Solution Approach 2:
The reinforcement structures are designed to counteract the harmful forces that will be applied during hole formation and screw installation. By providing this preliminary anti-action, the sealed portions are protected from breaking under the expected mechanical stresses.
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 design enhances mechanical strength and maintains the vacuum seal during screw installation and manufacturing processes, allowing for thinner plates and improved heat transmission efficiency.
Implementation Method 1
at least one first capillary structure layer is in the chamber, and the at least one first capillary structure layer is on a surface, which faces to the second plate, of the first plate
Implementation Method 2
The working liquid in the chamber
Implementation Method 3
Vapor chambers are widely used because they usually do not occupy much space, and yet can efficiently and evenly dissipate heat from a heat source of a very small area to a much larger area or surface
Data Source
AI summary
A vapor chamber has a first plate, a second plate, at least one ring structure, and a chamber. The first plate and the second plate have holes communicating with each other. The second plate has a cavity portion concaved away from the first plate. The ring structure is in the cavity portion and encloses the holes. The chamber is formed between the first plate and the second plate. A capillary structure layer and a working liquid are in the chamber. Therefore, even when either of the first and second plates is broken by heads of screws mounted through the holes, which are larger and oppress the margins of the holes, or even when either of the first and second plates is broken during forming of the holes via stamping or drilling, the chamber always remain sealed.