Speaker Hole Waterproofing Structure With Mesh Acoustic Sealing
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Solution Overview
Problem
Electronic devices face challenges in maintaining waterproofing around speaker holes while ensuring sound output quality and structural integrity, particularly as they become miniaturized and integrated with various functions.
Innovation Solution
A waterproofing structure is implemented in electronic devices, comprising a rigid body with openings and ribs, adhesive and elastic members, and a mesh, positioned between the speaker and the housing's inner surface to prevent water ingress while allowing sound transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproofing structure is added around the speaker hole, then water resistance is improved, but device complexity increases
Solution Approach 1:
The waterproofing structure combines multiple components (rigid body with openings, adhesive member, elastic member, and mesh) into an integrated assembly that seals the speaker hole while allowing sound transmission. This merging approach achieves comprehensive waterproofing functionality without requiring separate independent components for each protective function.
Solution Approach 2:
The waterproofing structure performs multiple functions simultaneously: the rigid body provides structural support and defines the sealing geometry, the adhesive member bonds components together, the elastic member provides flexible sealing, and the mesh filters particles while allowing sound passage. This multi-functional design achieves waterproofing, sound transmission, and structural integrity within a single integrated system.
2Reliability
If the speaker hole is sealed to prevent water ingress, then water resistance is improved, but sound output quality deteriorates
Solution Approach 1:
The waterproofing structure incorporates a mesh component that acts as a porous material, allowing sound waves to pass through while blocking water and particles. The mesh's porous structure enables acoustic transmission while maintaining the waterproof seal, thus preventing water ingress without compromising sound output quality.
Solution Approach 2:
The mesh serves as an intermediary element between the sealed waterproofing structure and the sound transmission path. It mediates between the conflicting requirements of water blocking and sound passing by allowing acoustic waves to traverse the barrier while preventing liquid penetration.
3Ease of operation
If the device is miniaturized to improve portability, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The waterproofing structure is divided into distinct segments (rigid body, adhesive member, elastic member, mesh) that can be manufactured separately with standard tolerances and then assembled. This segmentation allows each component to be produced using conventional manufacturing processes, reducing the overall manufacturing precision requirements while enabling miniaturization of the final device.
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
The solution effectively seals the speaker hole, preventing water ingress while maintaining sound quality and structural integrity, suitable for miniaturized electronic devices with integrated functions.
Implementation Method 1
an elastic member disposed between the rigid body and the speaker and including an elastic material
Implementation Method 2
a first adhesive member disposed between the rigid body and the inner surface and including an adhesive material
Data Source
AI summary
An electronic device may include: a housing including a side wall and a speaker hole formed in the side wall, a speaker disposed inside the housing and configured to output a sound through the speaker hole, and a waterproofing structure disposed between an inner surface of the side wall and the speaker. The waterproofing structure may include a rigid body disposed between the speaker and the inner surface and including a plate, a first opening formed in the plate, a first rib protruding from the plate, and a second rib protruding from the plate and spaced apart from the first rib, a first adhesive member disposed between the rigid body and the inner surface and including an adhesive material, an elastic member disposed between the rigid body and the speaker and including an elastic material, and a mesh at least partially accommodated in the elastic member. The speaker hole may include a first portion and a second portion facing the first portion. A first distance between the first rib and the second rib may be greater than a second distance between the first portion and the second portion.