Speaker Module Plate Geometry for Moisture Outlet Drainage
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Solution Overview
Problem
Moisture infiltration into the acoustic outlet of a speaker module degrades its acoustic output, and existing designs struggle to effectively discharge and remove moisture due to uniform thickness of the plate facing the diaphragm.
Innovation Solution
A speaker module design with a plate featuring a portion of reduced thickness and a wider gap between the diaphragm and the plate to facilitate smooth discharge and removal of moisture from the acoustic outlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the plate facing the diaphragm is formed to have a uniform thickness, then the structural simplicity and ease of manufacture are improved, but the ability to discharge and remove moisture from the acoustic outlet is degraded
Solution Approach 1:
The plate is designed with non-uniform thickness, where a first portion has a first thickness and a second portion has a second thickness different from the first thickness. This local variation in thickness creates different gap sizes between the plate and diaphragm at different locations, optimizing moisture discharge pathways while maintaining structural integrity and ease of manufacture.
2Reliability
If the plate is designed with non-uniform thickness to improve moisture discharge, then the moisture removal capability is improved, but the device complexity increases
Solution Approach 1:
The plate incorporates local thickness variations with a first portion having thickness t1 and a second portion having thickness t2. This localized structural modification creates optimized airflow pathways for moisture discharge without requiring complex additional components or assembly steps, thus improving moisture removal capability while minimizing increases in device complexity.
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing including a front surface plate, a rear surface plate facing away from the front surface plate, and a side surface member surrounding a space between the front surface plate and the rear surface plate and including a speaker hole, a display disposed in a first direction of the housing, and a speaker module disposed inside the housing to correspond to the speaker hole, wherein the speaker module includes a first plate disposed in a second direction opposite to first direction of the display, a speaker disposed in the second direction of the first plate, a diaphragm disposed in the second direction of the speaker, a second plate spaced apart from the diaphragm and disposed in the first direction of the rear surface plate, and an acoustic outlet formed between the diaphragm and the second plate, wherein the second plate includes a first portion having a first gap from the diaphragm and a second portion having a second gap from the diaphragm, and wherein the first portion configured to have a smaller thickness than the second portion.