Vacuum Glass Sealing Structure for Uniform Corner Induction Welding
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Solution Overview
Problem
Existing vacuum insulated glass technologies face challenges in achieving durable and uniform sealing, particularly at the corner areas where break corners lead to inefficient induction welding.
Innovation Solution
The solution involves replacing break corners with arc-shaped transitions in the sealing structure of vacuum insulated glass, ensuring that the metal layers and solder layers are matched in width, and incorporating a gas adsorbent to absorb residual gas, thereby enhancing the sealing effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If break corners are used in the sealing structure at corner areas, then the structure is simple to manufacture, but the induction welding heating is inefficient and non-uniform
Solution Approach 1:
The patent applies curvature by replacing the break corner design with an arc-shaped transition structure at the corner areas of the sealing structure. This arc-shaped design with specific radius parameters enables uniform electromagnetic field distribution during induction welding, achieving both efficient heating and improved welding quality without sacrificing manufacturability
2Ease of manufacture
If break corners are used in the sealing structure, then the manufacturing process is simple, but the heating uniformity at corner areas is poor
Solution Approach 1:
The arc-shaped transition structure with specifically designed radius parameters replaces the break corner design, creating a curved geometry that ensures uniform electromagnetic field penetration and heating distribution at corner areas during induction welding, thereby achieving both manufacturing simplicity and heating uniformity
3Ease of manufacture
If the metal layers and solder layers have mismatched widths, then the manufacturing process is simpler, but the sealing effectiveness is reduced
Solution Approach 1:
The patent applies local quality by establishing specific width relationship parameters between metal layers and solder layers at different locations. The arc-shaped transition structure with defined radius parameters ensures that the metal layer and solder layer widths are properly matched at corner areas, creating locally optimized sealing quality that enhances overall sealing effectiveness
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 reduces the time required for heating during induction welding, achieves more uniform heating at corner areas, and results in a glass product with improved sealing efficiency and durability.
Implementation Method 1
a gas adsorbent for absorbing residual gas is disposed in the vacuum cavity
Implementation Method 2
heating of the welding strip at the corner areas
Data Source
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AI summary
A vacuum insulated glass product, comprising: a first glass substrate (6); a second glass substrate (10) disposed opposite to the first glass substrate (6); a sealing structure (12) provided between the first glass substrate (6) and the second glass substrate (10) and used for airtight binding of the first glass substrate (6) and the second glass substrate (10) to form a vacuum cavity (11); and a support (2) provided inside the vacuum cavity for bearing pressure from the first glass substrate (6) and the second glass substrate (10). The sealing structure (12) comprises: metal layers (7, 9) which are fixedly bound to opposite surfaces of the first glass substrate (6) and the second glass substrate (10), respectively, and an intermediate solder layer (8) which connects the two metal layers. The sealing structure has arc-shaped transition structures at the corners areas of the glass substrates. By changing the shape of the sealing structure at the corner areas of the glass substrates, i.e., replacing break corners with arc-shaped transition, the time for repeatedly heating internal corner parts of a welding strip is reduced during induction welding and heating of the welding strip at the corner areas is more uniform.