Waterproof Case Window for Visual Water Ingress Testing
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Solution Overview
Problem
Existing waterproof electronic devices, such as smartwatches, face challenges in effectively testing for water ingress without compromising the display or user interface, as current methods may not provide clear visibility into the internal waterproofing status.
Innovation Solution
A waterproof electronic device design featuring a waterproof case with a display and a window for testing, where the window is positioned to allow visual inspection of the internal spaces for water ingress without obstructing the user interface, utilizing a transparent cover glass and elastomer-based sealing to maintain air tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproof testing space is created inside the device, then waterproof testing capability is improved, but device complexity increases
Solution Approach 1:
The waterproof testing space is merged with the existing internal cavity of the waterproof case, eliminating the need for separate testing chambers. The testing space utilizes the natural void between the display assembly and the case back, integrating the testing function into the device structure without adding external components.
Solution Approach 2:
The internal cavity serves dual purposes: it acts as both the housing space for electronic components and the waterproof testing space. This multi-functional design allows the same structural volume to fulfill multiple roles, reducing overall device complexity while maintaining waterproof testing capability.
2Measurement precision
If a window is added for waterproof testing, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The window is strategically positioned at a specific location on the case back that corresponds to the testing space, providing localized observation capability. This targeted approach allows clear viewing of the testing area without requiring windows across the entire device surface, minimizing structural modifications.
Solution Approach 2:
The window acts as an intermediary element that allows visual access to the sealed testing space without compromising the waterproof seal. It enables optical observation while maintaining the integrity of the waterproof barrier, solving the contradiction between measurement access and sealing requirements.
3Ease of operation
If the window is positioned to avoid the display, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The window is positioned asymmetrically on the case back, away from the centrally located display area. This asymmetric placement optimizes both user interface accessibility and testing functionality, allowing the display to remain unobstructed while providing adequate viewing access to the testing space through the offset window location.
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
Enables reliable and non-intrusive waterproof testing by allowing users to visually verify the absence of water within the device through strategically placed windows, ensuring the device remains functional and user-friendly.
Implementation Method 1
utilizing a transparent cover glass and elastomer-based sealing to maintain air tightness
Data Source
AI summary
A waterproof electronic device includes a waterproof case in which electronic components are embedded and a display which is able to display and which is placed in an opening of the waterproof case in an air tight manner. The waterproof electronic device includes a space for waterproof testing therein and the waterproof electronic device includes a window for waterproof testing at positions (i) corresponding to the space for waterproof testing and (ii) avoiding the display.