Speaker Membrane Periphery Bending for Radiating Area
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Solution Overview
Problem
Conventional speakers face performance limitations due to the ring-shaped periphery of the membrane, which protrudes parallel to the vibrating direction, reducing the active radiating area and thus the sound production efficiency.
Innovation Solution
The speaker design incorporates a membrane with a periphery that has a middle connecting portion bending perpendicular to the vibrating direction, minimizing its impact on the active radiating area, and includes a voice coil placement within or around this portion to optimize sound output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the periphery protrudes parallel to the vibrating direction to provide recovery stress, then the structural support is improved, but the active radiating area is reduced
Solution Approach 1:
The periphery is designed to bend in a direction perpendicular to the vibrating direction (along the Y-axis) rather than parallel to it (along the X-axis). This dimensional change allows the periphery to provide structural support through perpendicular bending stiffness while minimizing its projection onto the active radiating area, thus resolving the contradiction between needing recovery stress and maintaining radiating area.
2Stability of the object's composition
If the periphery protrudes parallel to the vibrating direction to maintain structural integrity, then the membrane stability is improved, but the sound production efficiency is reduced
Solution Approach 1:
By orienting the periphery's bending direction perpendicular to the vibration direction, the design maintains membrane stability through perpendicular structural support while minimizing interference with the sound radiation process, thereby improving sound production efficiency without sacrificing stability.
Solution Approach 2:
The periphery is designed with different functional zones: the middle connecting portion bends perpendicular to provide localized structural support, while the end portions extend parallel to the vibrating direction to provide additional stability. This local differentiation allows each portion to optimize its function without compromising the other.
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 design enhances the active radiating area of the membrane, leading to improved sound production efficiency and performance by reducing the periphery's interference with the sound output.
Implementation Method 1
a voice coil (107) disposed under the vibrating plate (109), and connected with the vibrating plate (109) or the membrane (108)
Implementation Method 2
the membrane (108) is used for producing audible sounds via vibration
Data Source
AI summary
A speaker is provided in the present disclosure. The speaker includes a magnetic system and a vibrating system placed on the magnetic system, the vibrating system includes a membrane. The membrane comprises a main membrane body and a periphery connected to an outer edge of the main membrane body, the periphery is adjacent to the magnetic system and a ring-shaped structure. The periphery comprises a first connecting portion connected to the main membrane body, a second connecting portion for fixing the membrane, and a middle connecting portion connected between the first connecting portion and the second connecting portion, the middle connecting portion bends perpendicularly to a vibrating direction of the main membrane body.