Speaker Assembly Moisture Discharge and Bezel Reduction

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Solution Overview

Problem

Electronic devices with waterproof structures face issues with moisture ingress through microphone or speaker holes, leading to sound input/output obstacles and potential corrosion, and there is a demand for miniaturized devices with high visibility displays and reduced bezel size.

Innovation Solution

The design includes a speaker assembly with a resonance space and through hole in the side member, allowing moisture to be easily discharged, and a display structure with bent units in different directions to reduce bezel size and increase visible area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a waterproof structure is implemented with sealed components, then protection against moisture ingress is improved, but moisture discharged from sound input/output paths becomes trapped inside the device

Engineering Contradiction:
Improvewaterproof protectionVSAvoidmoisture accumulation in resonance space
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The waterproof structure is segmented into multiple functional zones: a sealed main body for waterproof protection, and a dedicated moisture discharge path with opening positioned to allow moisture egress while maintaining overall waterproof integrity. This segmentation enables simultaneous achievement of waterproofing and moisture discharge.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A controlled opening or vent structure acts as an intermediary element between the sealed interior and exterior environment. This intermediary allows selective passage of moisture vapor while blocking liquid water ingress, resolving the contradiction between sealing and discharge requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Area of stationary object

If the bezel size is reduced to increase display visibility, then display visibility is improved, but the structural support and component mounting space are reduced

Engineering Contradiction:
Improvedisplay visible areaVSAvoidstructural support requirements
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The support structure transitions from a two-dimensional planar bezel to a three-dimensional configuration utilizing vertical depth and angular orientations. Support members extend at angles from the display edges, providing structural reinforcement without increasing the horizontal bezel footprint, thus maintaining display visibility while enhancing structural support.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The support members are nested within or integrated with the minimal bezel structure, with angled supports positioned to maximize structural efficiency within the constrained space. This nesting allows complex structural functions to be achieved within the reduced bezel area.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 solution effectively addresses moisture issues in sound paths, enhances sound output, and minimizes device size while increasing display visibility.

Implementation Method 1

a resonance space having a shape recessed from the space in a third direction that is substantially perpendicular to the first direction or the second direction, and at least one through hole provided in the third direction in a portion of the resonance space

Methodology Applied
Scientific EffectResonance: Resonance

Data Source

PatentUS11871178B2Electronic device comprising speaker assembly
Publication Date: 2024.01.09 SAMSUNG ELECTRONICS CO LTD
  • US11871178B2 patent drawing
  • US11871178B2 patent drawing
  • US11871178B2 patent drawing

AI summary

An electronic device comprises a housing including a window member facing a first direction, a rear housing facing a second direction that is opposite to the first direction, and a side member encompassing the space between the window member and the rear housing. The electronic device also includes a display that is visible through at least a part of the window member and a speaker assembly disposed in the space. The speaker assemble includes a speaker diaphragm. The side member includes a resonance space including a shape a recessed form in a third direction that is substantially perpendicular to the first direction or the second direction. A through hole is formed in the third direction in a part of the resonance space that is closer to the rear housing than to the window member. A part of the resonance space can be disposed so as to overlap the speaker diaphragm.