Diaphragm Corner Wrinkle Design for Vibration Stability
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Solution Overview
Problem
Existing diaphragm designs fail to achieve stable vibration and optimal acoustic performance due to issues with twist, swing, and distortion during vibration, despite the use of wrinkle patterns at the edge portion.
Innovation Solution
A diaphragm design featuring first and second wrinkles at the corners of the edge portion, with the second wrinkle extending along the corner extension direction, and a fixing portion for improved stability and acoustic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wrinkle patterns are provided at corners of the edge portion to improve twist, swing, and distortion, then acoustic performance is improved, but stable vibration cannot be achieved
Solution Approach 1:
The wrinkle pattern is divided into two distinct types: first wrinkles extending from the inner side toward the outer side of the edge portion, and second wrinkles extending along the corner extension direction. This segmentation allows each wrinkle type to address different aspects of vibration control, with first wrinkles handling radial stress and second wrinkles handling corner stability, thereby achieving both improved acoustic performance and stable vibration.
Solution Approach 2:
The patent applies different wrinkle configurations at different locations: first wrinkles are distributed across the edge portion while second wrinkles are specifically positioned at corner regions. This local differentiation optimizes the wrinkle function for specific structural needs - the first wrinkles address general edge stability while second wrinkles specifically target corner twist and swing, achieving comprehensive vibration stability.
2Ease of manufacture
If existing wrinkle pattern structure is used, then manufacturing is simple, but requirement for stable vibration of the diaphragm cannot be satisfied
Solution Approach 1:
The wrinkle pattern is divided into two distinct types: first wrinkles extending from the inner side toward the outer side of the edge portion, and second wrinkles extending along the corner extension direction. This segmentation allows each wrinkle type to address different aspects of vibration control, with first wrinkles handling radial stress and second wrinkles handling corner stability, thereby achieving both improved acoustic performance and stable vibration.
Solution Approach 2:
The patent applies different wrinkle configurations at different locations: first wrinkles are distributed across the edge portion while second wrinkles are specifically positioned at corner regions. This local differentiation optimizes the wrinkle function for specific structural needs - the first wrinkles address general edge stability while second wrinkles specifically target corner twist and swing, achieving comprehensive vibration stability.
Data Source
AI summary
The present disclosure provides a diaphragm. The diaphragm includes a dome portion located at a central position and an edge portion disposed around the dome portion. The edge portion is provided with a plurality of first wrinkles at corners of the edge portion. The first wrinkles extend from an inner side of the edge portion toward an outer side of the edge portion. The edge portion is further provided with at least one second wrinkle passing through all the first wrinkles that are at the same corner as the at least one second wrinkle. The second wrinkle extends along a corner extension direction of the corner at which the second wrinkle is located. The diaphragm of the present disclosure can effectively improve a twist, a swing, and distortion when the diaphragm vibrates, and improve acoustic performance.