Screen Protection Case Sealing Ring for Low-Cost Waterproofing
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Solution Overview
Problem
Traditional screen protection cases with two sealing layers increase production costs due to complex manufacturing processes.
Innovation Solution
A screen protection case design featuring a shell, transparent protection cover, and a sealing ring or gasket that is either circumferentially continuous and hollow or spaced apart from the shell, allowing for increased deformation and contact area to enhance sealing and waterproofing without additional sealing layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two sealing layers are used in the screen protection case, then the sealing and waterproofing level is improved, but the production cost increases
Solution Approach 1:
The sealing ring's cross-sectional structure is changed to include a hollow interior space, transforming it from a simple circular ring to a more complex geometric shape. This structural parameter change enables the sealing ring to deform and expand upon compression, increasing its contact area with the protection cover and screen without adding more sealing layers, thus maintaining reliable sealing while reducing production cost
Solution Approach 2:
The sealing ring is designed with flexible deformation capability through its hollow cross-sectional structure. When compressed between the protection cover and screen, the sealing ring deforms radially outward to increase contact area, achieving effective sealing through elastic deformation rather than through multiple rigid sealing layers
2Reliability
If two sealing layers are used in the screen protection case, then the waterproofing level is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The invention merges the sealing function that previously required two separate sealing layers into a single sealing ring with a specially designed hollow cross-sectional structure. This consolidation reduces the number of components and assembly steps while maintaining the waterproofing function through the deformation and expansion capability of the hollow sealing ring
3Ease of manufacture
If a single sealing ring is used instead of two sealing layers, then the production cost is reduced, but the sealing effectiveness may be compromised
Solution Approach 1:
The sealing ring's cross-sectional parameters are optimized to include a hollow interior space, allowing the ring to deform and expand upon compression. This parameter change enables a single sealing ring to achieve the sealing effectiveness previously requiring two layers, maintaining reliability while reducing production cost
Solution Approach 2:
The sealing ring transitions from a static rigid structure to a dynamic deformable structure. When compressed between the protection cover and screen, the sealing ring dynamically deforms radially outward to increase its contact area, adapting to surface irregularities and achieving effective sealing with a single component
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
Simplifies production processes and reduces costs while effectively preventing moisture ingress, ensuring normal screen operation and improved sealing and waterproofing levels.
Implementation Method 1
provides hollowing of the inside region of the sealing ring, such that when pressed by the screen, the sealing ring can sufficiently deform to the hollow inside region
Data Source
AI summary
A screen protection case for an electronic device includes a shell, a protection cover, and a sealing ring. The shell is provided with an accommodating space and a window communicating with the accommodating space. The protection cover is transparent, connected to the shell, and covers the window. The sealing ring is attached to a side surface of the protection cover facing the accommodating space. The sealing ring is circumferentially continuous and hollow inside. When the screen protection case accommodates the electronic device in the accommodating space, an edge of the screen of the electronic device is abutted against the sealing ring. The screen protection case effectively reduces the production cost of the screen protection case for the electronic device. The contact area between the sealing ring and the protection cover and the contact area between the sealing ring and the screen are increased.