Speaker Voice Coil Balance Element Stabilization
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Solution Overview
Problem
Higher power operation in speakers leads to increased displacement range of the voice coil, causing side-to-side shaking and instability, which affects the quality of treble sound emission.
Innovation Solution
A speaker design incorporating a magnetic circuit system with a balance element that includes a deforming portion, fixing portion, and supporting portion, connected to the voice coil, which stabilizes its movement path and prevents horizontal swinging, ensuring stable treble quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If higher power operation is used, then the displacement range of the voice coil increases, but the voice coil experiences side-to-side shaking and instability
Solution Approach 1:
A balance element is introduced as an intermediary component between the voice coil and the frame. This balance element includes a fixing portion connected to the frame, a deforming portion, and a supporting portion connected to the voice coil. The deforming portion acts as a flexible intermediary that allows vertical movement while restricting horizontal displacement, thereby preventing side-to-side shaking of the voice coil during high-power operation.
Solution Approach 2:
The balance element utilizes elastic deformation characteristics to change its mechanical properties dynamically. The deforming portion is designed with specific elastic modulus and geometric parameters that allow it to deform vertically under voice coil movement while maintaining rigidity against horizontal forces, thus adapting the structural parameters to achieve both large displacement range and movement stability.
2Power
If the voice coil displacement range increases, then higher power output is achieved, but the treble quality deteriorates due to horizontal swinging
Solution Approach 1:
The balance element serves as a mediator that decouples the vertical motion required for high power output from the harmful horizontal swinging that degrades treble quality. By connecting the voice coil to the frame through this intermediary structure with specific elastic properties, the system achieves large displacement ranges for high power while the balance element filters out horizontal vibrations, preserving treble quality.
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 balance element effectively restricts the voice coil's movement to a vertical direction, reducing horizontal wobbling and enhancing high-frequency response stability, resulting in improved treble quality.
Implementation Method 1
the deforming portion is in a wavy shape or an irregular shape... the balance element effectively restricts the voice coil's movement to a vertical direction
Implementation Method 2
the speaker can make the diaphragm vibrate through the movement of the voice coil under the action of electromagnetic force
Data Source
AI summary
A speaker includes a frame, a magnetic circuit system setting section, a magnetic circuit system and a balance element. The frame has a first surface. The magnetic circuit system setting section is formed on the first surface of the frame, the magnetic circuit system setting section includes a first region and a second region, and the second region surrounds the first region. The magnetic circuit system is arranged in the magnetic circuit system setting section, and includes a voice coil. The voice coil has a first end facing the first surface and located in the second region. The balance element is connected to the first surface and the first end.