Terminal Sound Output Balancing via Segmented Acoustic Channels
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Solution Overview
Problem
Existing terminal devices experience inadequate sound output due to the eccentric design of sound output devices, leading to unbalanced sound distribution when a user holds the device for a phone call, causing one side of the sound output holes to be blocked and resulting in reduced sound quality.
Innovation Solution
A terminal device design featuring a display module, sound output device, and middle frame with strategically positioned sound output holes and a sound cavity channel that allows sound to be transmitted effectively to both sides, ensuring balanced sound output by using grooves and through holes to guide sound around obstructions such as the front camera module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the sound output device is positioned eccentrically to optimize sound output effect, then the sound output quality is improved, but the sound becomes inadequate when the user blocks the sound output hole on one side during phone calls
Solution Approach 1:
The sound output hole is divided into two separate holes: a first sound output hole and a second sound output hole. This segmentation allows sound to be output through multiple paths, ensuring that even if one hole is blocked by the user's ear during a call, the other hole can still provide adequate sound output, thus resolving the contradiction between optimizing sound quality and maintaining adaptability in different usage postures.
Solution Approach 2:
The first and second sound output holes are positioned at different locations on the sound output assembly. By distributing the sound output function across different spatial locations, the design ensures that sound output remains effective regardless of which specific location is blocked during usage, thereby improving both sound quality and usage adaptability simultaneously.
2Device complexity
If a single sound output hole is used to simplify the structure, then the device complexity is reduced, but the sound output becomes unbalanced when the user holds the device in different postures
Solution Approach 1:
The single sound output hole is segmented into multiple holes (first sound output hole and second sound output hole) arranged at different positions. This segmentation enables the sound output assembly to maintain balance across different usage postures while adding only minimal structural complexity, as the holes are integrated into the existing sound output assembly without requiring complex additional mechanisms.
3Volume of moving object
If the sound output hole is positioned close to the display module for compact design, then the internal space utilization is improved, but the sound output is blocked when the user holds the device against the ear
Solution Approach 1:
The sound output function is segmented across multiple holes positioned at different locations within the compact internal space. This allows the sound output assembly to maintain compact positioning near the display module while ensuring that at least one hole remains accessible for sound output even when the user holds the device against their ear, thus resolving the contradiction between compact design and functionality.
Data Source
AI summary
A terminal device includes a sound output device and a middle frame with a first through hole and a second through hole. The display module is mounted on the middle frame, and the sound output device is located on a side of the middle frame. The terminal device is provided with a first sound output hole set and a second sound output hole set. The sound output device is fixed to the middle frame by a bracket provided with a first groove section, a second groove section, and a third groove section. The sound output device is in communication with the first sound output hole set through the first groove section and the first through hole. and the sound output device in communication with the second sound output hole set through the first groove and the second through hole.