Speaker Suspension Member With Segmented Convex Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing speaker suspension members with single curved surface portions provide limited support to the cone, leading to sound distortion, and increasing the size of these surfaces either reduces support or increases manufacturing costs, while prior designs with multiple curved surfaces or resilient materials fail to adequately support cone movement without distorting sound.
Innovation Solution
A suspension member with multiple transversely arched annular convex surface portions, forming a substantially Ω-shaped cross section, provides sufficient support to the cone by maintaining a constant pitch between inner and outer diameter portions, allowing for adjustable design without altering the cone's specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the size of the curved surface portion is extended to increase supporting power, then the supporting power increases, but the stroke of the cone increases resulting in sound distortion
Solution Approach 1:
The suspension member divides the curved surface into multiple discrete convex portions (first, second, third convex portions) instead of using a single continuous curved surface. This segmentation allows each convex portion to provide localized support while maintaining overall flexibility, preventing excessive cone stroke that causes distortion while still providing sufficient supporting power.
Solution Approach 2:
Different regions of the suspension member have different structural characteristics - the convex portions provide rigid support where needed, while the spaces between them maintain flexibility. This local variation in structural quality allows the suspension member to provide adequate supporting power at specific locations without increasing overall cone stroke.
2Ease of operation
If the size of the curved surface portion is reduced to decrease stroke, then the stroke decreases, but the supporting power is reduced
Solution Approach 1:
By segmenting the curved surface into multiple smaller convex portions, each portion can be optimized to provide maximum supporting power within a limited space. The cumulative effect of multiple segments equals or exceeds the support of a single large surface, while keeping individual segment sizes small enough to control cone stroke.
Solution Approach 2:
The invention transitions from a single-dimension curved surface to a multi-dimensional arrangement with convex portions distributed across different radial and axial positions. This dimensional distribution allows the suspension member to provide supporting power throughout the cone's movement range without requiring a large single continuous surface.
3Strength
If the structure of the basket and cone is changed to accommodate extended suspension size, then the supporting power increases, but the manufacturing cost increases
Solution Approach 1:
The segmented convex portion design allows the suspension member to be manufactured as a standardized component that can be produced using conventional molding techniques. The segmentation creates a modular structure that is easier to manufacture and assemble compared to custom-designed extended suspension structures, reducing overall manufacturing costs.
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 configuration ensures linear voice curve maintenance and prevents sound distortion, allowing for adjustable design to enhance sound quality across different speaker applications without increasing manufacturing costs.
Implementation Method 1
The suspension member is made of an elastic material, having a curved surface portion to fit the motion of the cone
Data Source
AI summary
An elastically deformable suspension member for use in a speaker to establish a sufficient support to a cone is disclosed. The suspension member has an inner diameter portion for mounting the cone, an outer diameter portion spaced around the inner diameter portion for fastening to a basket, a first annular convex surface portion concentrically arranged between the inner diameter portion and the outer diameter portion and constituting a summit, and a number of second annular convex surface portions symmetrically arranged at two opposite lateral sides of the first annular convex surface portion between the inner diameter portion and the outer diameter portion and respectively constituting summit ridges having a height below the summit and above the elevations of the inner diameter portion and the outer diameter portion.