Speaker Dome Positioning Structure for Diaphragm Concentricity
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Solution Overview
Problem
Existing speakers face issues with diaphragm and dome concentricity due to inadequate glue application, leading to wobbling and reduced reliability.
Innovation Solution
A speaker design featuring a positioning portion on the dome edge to ensure concentricity, integrated with the diaphragm, using methods like gluing, hot pressing, or injection molding to enhance assembly precision and consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the diaphragm and dome are fixed by gluing, then the assembly process is simple, but the concentricity cannot be guaranteed and wobbling occurs
Solution Approach 1:
The dome is segmented into a main body and a separate positioning portion that extends from the edge. This positioning portion can be independently formed or added to ensure proper alignment and concentricity with the diaphragm during assembly, while maintaining the simplicity of the gluing process.
Solution Approach 2:
A positioning portion is introduced as an intermediary element between the dome and diaphragm. This positioning portion provides a reference structure that ensures accurate concentricity and alignment during the gluing process, eliminating the wobbling issue while keeping the assembly process simple.
2Ease of manufacture
If glue is used for fixing the diaphragm and dome, then assembly is easy, but the glue is prone to be lacking or overflowing
Solution Approach 1:
The positioning portion is designed in advance with specific geometric features that pre-establish the correct position and orientation of the diaphragm relative to the dome. This preliminary structural arrangement ensures that when glue is applied, it is placed precisely where needed, preventing both lacking and overflowing of glue.
3Productivity
If the diaphragm and dome are assembled without a positioning structure, then the manufacturing process is simple, but the assembly precision is poor
Solution Approach 1:
Instead of making the entire dome complex, only a local positioning portion is added at the edge of the dome. This localized feature provides the necessary alignment function while keeping the rest of the dome structure simple and easy to manufacture, thus maintaining high productivity with improved assembly precision.
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
Improves assembly precision and stability, reducing glue usage and preventing wobbling, thereby enhancing speaker reliability.
Implementation Method 1
the positioning portion is used for ensure concentricity of the diaphragm when the diaphragm is integrally formed with the dome
Implementation Method 2
a voice coil driving the voice membrane to vibrate
Implementation Method 3
a magnetic circuit system driving the vibration system to vibrate and sound
Data Source
AI summary
A speaker includes a vibration system and a magnetic circuit system driving the vibration system to vibrate and sound. The vibration system includes a voice membrane and a voice coil driving the voice membrane to vibrate. The voice membrane includes a diaphragm and a dome fixed with the diaphragm, the dome includes a main body and a positioning portion bending and extending from an edge of the main body, the positioning portion is used for ensure concentricity of the diaphragm when the diaphragm is integrally formed with the dome. Compared with the related art, the speaker disclosed by the present disclosure could improve the reliability.