Vacuum Glass Panel Sash Structure for Misalignment Load Distribution
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Solution Overview
Problem
Vacuum glass panels are prone to damage due to misalignment of glass plates during manufacturing, leading to stress concentration and potential damage to the glass plates and peripheral components, especially with larger sizes and increased weight.
Innovation Solution
A vacuum glass panel design with two glass plates of equal area, supported by a sash with a grazing gasket that clamps the glass plates from the outer principal surfaces, reducing the weight applied to the bottom contact face and dispersing the load across two sides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If vacuum glass is designed to stand on one foot with one glass plate higher than the other, then the structure is simplified and manufacturing is easier, but stress concentrates on the standing glass plate causing damage risk
Solution Approach 1:
The patent intentionally introduces asymmetry by providing a support structure that creates a height difference between the first and second glass plates, with the first glass plate's lower face being higher than the second glass plate's lower face. This controlled asymmetry prevents the vacuum glass from standing on one foot, distributing the weight to both glass plates and eliminating stress concentration, thereby improving reliability while maintaining ease of manufacture through a straightforward structural design.
2Area of stationary object
If the size of vacuum glass is increased to meet modern requirements, then the functionality and coverage are improved, but the weight increases making the glass plates more prone to damage
Solution Approach 1:
The patent introduces a vertical dimension element by creating a height difference between the lower faces of the two glass plates. The first glass plate's lower face is positioned higher than the second glass plate's lower face, forming a stepped configuration. This dimensional change allows the weight to be distributed across both plates rather than concentrating on one, thereby enhancing the overall strength and damage resistance of larger vacuum glass panels.
3Temperature
If the vacuum glass structure is made more rigid to improve insulation performance, then the heat-insulating properties are improved, but stress such as bending stress is applied directly to the edges causing damage
Solution Approach 1:
The patent implements a preventive measure by designing a support structure that creates a height difference between the glass plates before any external stress or damage occurs. This beforehand cushioning approach ensures that the weight is distributed to both glass plates from the outset, preventing stress concentration and potential damage to the edges, while maintaining the rigid structure needed for effective heat insulation.
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 2
AI summary
A vacuum glass panel including a vacuum glass, a sash, and a grazing gasket is provided. The vacuum glass includes a first glass plate, a second glass plate having substantially the same area as the area of the first glass plate in a front view, and a depressurized layer arranged between the first glass plate and the second glass plate opposed to the first glass plate. The lower face of the first glass plate and the lower face of the second glass plate are misaligned relative to each other in the vertical direction. The sash includes two groove walls that define a groove for receiving the upper, lower, right, and left peripheral edge portions of the vacuum glass in a front view. The grazing gasket is arranged on at least the lower portion of the vacuum glass inside the groove and seals a gap between the vacuum glass and the groove walls, and includes a clamping portion for clamping the vacuum glass from a first outer principal surface of the first glass plate and a second outer principal surface of the second glass plate near the top portions of the groove walls.