Conductive Plane Damper Eliminates Lead Wire Resonance
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Solution Overview
Problem
Existing speaker dampers suffer from sound distortion due to wire resonance, increased weight, and complex structures, with lead wires prone to breaking and requiring complex installation processes.
Innovation Solution
A conductive plane damper with pairs of voice coil and wire welding points arranged on an inner and outer circle, respectively, using copper foils for electrical conduction, eliminating the need for lead wires and reducing thickness, weight, and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wire is sewn directly on the damper, then the damper can be simple in structure, but the wire and damper resonate causing sound distortion
Solution Approach 1:
The patent extracts the wire from the damper structure by providing separate wire welding points on the conductive plane. The wire is welded directly to the conductive plane at designated points rather than being sewn onto the damper, eliminating the harmful resonance between wire and damper while maintaining structural simplicity.
2Object-generated harmful factors
If supporting boxes, universal bearings and limiting plate are added to prevent wire vibration, then sound distortion is reduced, but the damper thickness and speaker weight increase
Solution Approach 1:
The patent removes complex supporting structures (supporting boxes, universal bearings, limiting plates) by extracting the wire stabilization function into the conductive plane design itself. The wire welding points are directly integrated into the conductive plane, eliminating the need for additional weight-bearing components while preventing wire vibration through proper welding configuration.
Solution Approach 2:
The patent merges the wire anchoring function with the conductive plane structure by providing wire welding points directly on the conductive plane. This integration eliminates the need for separate supporting boxes and limiting plates, reducing overall weight while maintaining the ability to prevent wire vibration and sound distortion.
3Ease of manufacture
If lead wire is used for electrical conduction, then electrical connection is simple, but the lead wire is prone to breaking and reduces product life
Solution Approach 1:
The patent merges the electrical conduction function with the conductive plane structure by providing wire welding points directly on the conductive plane. The wire is welded to the conductive plane rather than using separate lead wires, eliminating the risk of lead wire breaking while maintaining simple electrical connection and manufacturing processes.
4Reliability
If traditional damper structure with wire and supporting components is used, then wire positioning is secure, but the speaker occupies large space
Solution Approach 1:
The patent extracts the wire positioning function from the traditional damper structure by providing dedicated wire welding points on the conductive plane. This eliminates the need for bulky supporting boxes and limiting plates, reducing the space occupied by the speaker while maintaining secure wire positioning through direct welding to the conductive plane.
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 solution enhances sound quality by reducing distortion, extends product life by preventing wire breakage, and simplifies installation, while minimizing speaker thickness and weight.
Implementation Method 1
pairs of voice coil welding point and wire welding point arranged in an inner circle and an out circle respectively, a connecting part arranged with a copper, thereby realizing electrical conduction of the voice coil and the supply power
Data Source
AI summary
The invention discloses a conductive plane damper, which includes an outer circle, an inner circle and several connecting parts; several the connecting parts are evenly distributed between the outer circle and the inner circle, connecting the outer circle and the inner circle; the conductive plane damper are provided with at least two pairs of voice coil welding points and wire welding points; the voice coil welding points are arranged on the inner circle, the wire welding points are arranged on the outer circle. The speaker with the conductive plane damper avoids the usage of the lead wire and the speaker losing sound because of breaking of the lead wire, thereby greatly reducing the thickness of the conductive plane damper and increasing the quality of the speakers.