Inclined Waterproof Pin Structure for Tray Opening Rigidity
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Solution Overview
Problem
Electronic devices face challenges in maintaining mechanical rigidity and waterproofing while ensuring an attractive appearance, particularly due to insufficient spacing between visually exposed components and holes, which can compromise their waterproof structure.
Innovation Solution
The implementation of a waterproof member with a pin member that linearly reciprocates within an inclined opening, featuring waterproof rings and support protrusions, along with a rib structure, to ensure mechanical stability and effective sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If routes or components are arranged adjacent to each other to match external appearance, then the aesthetic appearance is improved, but the mechanical rigidity deteriorates
Solution Approach 1:
The patent introduces a rib structure that extends in the thickness direction (third direction) of the housing to reinforce regions where routes are densely arranged. This adds a dimensional element (vertical reinforcement) to compensate for the loss of mechanical rigidity caused by horizontal/planar density of routes, thereby resolving the contradiction between aesthetic appearance and mechanical strength.
2Shape
If routes or components are arranged adjacent to each other, then the aesthetic appearance is improved, but the waterproof performance deteriorates
Solution Approach 1:
The rib structure extending in the thickness direction creates additional barrier layers that moisture must penetrate through. This vertical dimension adds waterproofing capability without requiring changes to the planar arrangement of routes, thus maintaining both aesthetic appearance and improving waterproof reliability.
Solution Approach 2:
The patent employs waterproof films or coatings on the housing surfaces, particularly in regions with dense route arrangements. These thin film layers provide flexible waterproofing that conforms to the housing geometry while maintaining the aesthetic appearance and preventing moisture infiltration through adjacent routes.
3Strength
If sufficient distance is secured between routes or components, then the mechanical rigidity is improved, but the aesthetic appearance deteriorates
Solution Approach 1:
Instead of increasing horizontal spacing between routes (which would affect appearance), the patent adds vertical reinforcement through ribs that extend in the thickness direction. This allows routes to remain closely spaced for aesthetic purposes while the vertical rib structure provides the necessary mechanical rigidity.
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 design enhances the mechanical rigidity and waterproof performance of electronic devices, allowing for a stable operation structure and improved design flexibility, while maintaining an attractive appearance.
Implementation Method 1
at least one waterproof ring protruding from an outer peripheral surface of the pin member and sealing a space between the outer peripheral surface of the pin member and an inner wall of the second opening
Data Source
AI summary
An electronic device includes a housing including a side wall having a first opening and a second opening provided at one side of the first opening; a tray configured to be inserted into or extracted from the housing through the first opening; and a waterproof member provided in the second opening and configured to reciprocate linearly, wherein the waterproof member includes: a pin member configured to linearly reciprocate within the second opening; and at least one waterproof ring protruding from an outer peripheral surface of the pin member and sealing a space between the outer peripheral surface of the pin member and an inner wall of the second opening, and wherein the second opening extends at an incline with respect to a direction in which the tray is inserted or extracted.