Periodic Span Wire Dampers for Uniform Loudspeaker Elasticity
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Solution Overview
Problem
Conventional loudspeaker wire dampers have non-uniform hardness, elasticity, and toughness due to the strong fixing strength of weft yarns affecting the wire assemblies, leading to deformation and compromised sound quality.
Innovation Solution
The wire damper design incorporates periodic span wires with weft yarns that alternately span above and below warp yarns, reducing the fixing strength and enhancing elasticity through elastic adjustment areas, with a resin layer covering the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If weft yarns are used to firmly fix wire assemblies through weaving, then the wire assemblies are securely held in position, but the fixing strength is too great which affects the elasticity of the wire assemblies
Solution Approach 1:
The patent introduces elastic adjustment areas with specific structural characteristics (larger spacing between warp yarns) to create localized regions with different mechanical properties. These areas provide reduced fixing strength and enhanced elasticity specifically where needed, while maintaining strong fixing in other regions. This local differentiation resolves the contradiction by allowing different parts of the wire damper to have different mechanical characteristics.
Solution Approach 2:
The wire damper is segmented into different functional zones: wire disposing areas with standard weaving patterns for strong fixing, and elastic adjustment areas with modified patterns for enhanced elasticity. This segmentation allows the patent to simultaneously achieve strong fixing and good elasticity by distributing different functional requirements to different segments of the structure.
2Stability of the object's composition
If wire assemblies are disposed with strong fixing from weft yarns, then the wire assemblies remain stable in position, but the hardness, elasticity and toughness become non-uniform across the wire damper
Solution Approach 1:
The patent creates different local qualities in the wire damper by introducing elastic adjustment areas with specific structural characteristics. These areas have different spacing patterns between warp yarns that create localized variations in mechanical properties, allowing the wire damper to achieve both position stability and uniform mechanical characteristics through strategic local differentiation.
Solution Approach 2:
The patent changes structural parameters (spacing between warp yarns, pattern of weft yarns) in specific areas to create elastic adjustment areas. By modifying these parameters locally, the patent achieves uniform mechanical properties across the wire damper while maintaining overall position stability through the controlled variation in structural parameters.
3Strength
If conventional weaving patterns are used to fix wire assemblies, then the wire assemblies are securely held, but the elastic resilience and fatigue resistance are compromised due to non-uniform mechanical properties
Solution Approach 1:
The patent introduces elastic adjustment areas with specific structural characteristics (modified weaving patterns, larger spacing) to create localized regions that enhance elasticity and fatigue resistance. These local quality changes allow the wire damper to maintain strong fixing while improving overall reliability through strategic local optimization.
Solution Approach 2:
The wire damper functions as a composite structure combining different weaving patterns and structural characteristics in different areas. The composite nature allows simultaneous achievement of strong fixing (through conventional weaving in wire disposing areas) and high elasticity/fatigue resistance (through elastic adjustment areas), thereby improving overall reliability.
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
The design achieves uniform hardness, elasticity, and toughness, improving resilience and fatigue resistance, resulting in better sound quality.
Implementation Method 1
impregnating the base material in a resin solution
Implementation Method 2
the weft yarns can firmly fix the wire assemblies through weaving, the fixing strength applied by the weft yarns is quite great, which affects the elasticity of the wire assemblies
Data Source
AI summary
A method for manufacturing a wire damper of a loudspeaker with periodic span wires, including: arranging warp yarns and wire assemblies at intervals, which extend straightly and are parallel to each other; interweaving weft yarns with the warp yarns and the wire assemblies to weave a base material, each wire assembly periodically spans above and below the weft yarn assemblies, and an area where the weft yarn assemblies defined by at least two adjacent weft yarns are interwoven with each wire assembly is defined as a wire disposing area; impregnating the base material in a resin solution; drying the base material; thermoforming a wire damper on the base material; separating the wire damper from the base material. Therefore, the strength of the weft yarns fixing the wire assemblies can be reduced, thereby reducing the influence of the weft yarns on the wire assemblies, imparting the wire assemblies better elasticity.