Waterproof Speaker Gap Elimination via Corner Positioning
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Solution Overview
Problem
Conventional waterproof speaker devices in portable electronic devices face issues with gaps between the waterproof rubber frame and the speaker or casing due to assembly tolerances and collisions, compromising their waterproof functionality.
Innovation Solution
A waterproof speaker device design featuring a plate member with an encircling block wall and a waterproof frame, where the block wall and frame have matching positioning portions to ensure a tight-fit and gap-free assembly, preventing liquid ingress even under collision conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a quadrilateral waterproof rubber frame is clamped between the quadrilateral speaker and the quadrilateral block wall to achieve waterproof function, then the waterproof function is initially achieved, but gaps are likely to occur between the four corners of the waterproof rubber frame and the four corners of the speaker or block wall due to assembly tolerances and collisions, causing waterproof function to fail
Solution Approach 1:
The waterproof frame is divided into multiple segments corresponding to each corner of the quadrilateral structure. Each segment can independently adapt to positioning deviations, preventing gap formation at the corners while maintaining the overall waterproof sealing function.
Solution Approach 2:
The waterproof frame incorporates localized flexible or deformable sections at the corner areas, allowing these specific regions to adapt to assembly tolerances and collision forces. This local quality adjustment ensures continuous sealing without compromising the rigid structural integrity of the main frame body.
2Ease of manufacture
If a conventional quadrilateral waterproof rubber frame is used to fill the gap between the speaker device and casing, then the structure is simple and easy to manufacture, but the corners produce gaps due to assembly tolerances and shifts from collision forces
Solution Approach 1:
The waterproof frame incorporates dynamic elements that allow it to adjust its shape and position in response to collision forces and assembly variations. This dynamic adaptation maintains the waterproof seal under varying conditions while keeping the overall structure relatively simple.
Solution Approach 2:
The waterproof frame utilizes composite material construction combining rigid and flexible components. The rigid portions maintain structural simplicity and ease of manufacture, while the flexible portions provide the necessary adaptability to prevent gap formation under collision and assembly tolerance conditions.
Data Source
AI summary
A waterproof speaker device includes a plate member, a speaker unit and a waterproof frame. The plate member includes an encircling block wall and a sound hole. The encircling block wall is provided on the plate member, and the sound hole passes through the plate member and is located within the encircling block wall. The encircling block wall is quadrilateral and includes four first positioning portions, and the first positioning portions are respectively located at four corners of the encircling block wall. The speaker unit is near the sound hole, and the encircling block wall surrounds the speaker unit. The waterproof frame is located between the encircling block wall and the speaker unit. The waterproof frame is quadrilateral and includes four second positioning portions, the second positioning portions are respectively located at four corners of the waterproof frame, and the first positioning portions respectively match the second positioning portions.