Loudspeaker Vibration Assembly With Phase Ball for Low Distortion
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Solution Overview
Problem
Traditional speaker units suffer from high distortion rates, thick structural dimensions, poor stability, and lack of phase correction, leading to energy imbalance and sound interference.
Innovation Solution
A vibration system comprising a support frame, first damper, drive component, membrane holder, membrane assembly, phase ball assembly, and second damper, which enhances stability, reduces thickness, and corrects phase distortion through a combination structure that includes a phase ball assembly to generate a phase difference to improve sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a complete sheet membrane with cone-shaped structure is used and the voice coil is directly adhered to it, then the membrane can be simply structured, but segmentation vibration occurs and energy distribution becomes imbalanced, resulting in high distortion rate
Solution Approach 1:
The membrane is divided into multiple independent vibration units (first membrane, second membrane, third membrane) instead of using a single complete sheet. Each membrane unit can vibrate independently, preventing segmentation vibration and improving energy distribution balance, thereby reducing distortion rate.
2Stability of the object's composition
If a centering support plate is adhered to the voice coil skeleton, then the structure can be stabilized, but the centering support plate occupies the voice coil position, resulting in thicker overall structure
Solution Approach 1:
The centering support plate is extracted from the voice coil position and relocated to the membrane holder position. This eliminates the occupation of the voice coil position by the centering support plate, allowing for a thinner overall structure while maintaining structural stability through the membrane holder's support function.
3Reliability
If traditional dampers with centering support plate and folding ring are used, then damping function can be provided, but the centering support plate is prone to aging and fatigue resistance decreases with use time
Solution Approach 1:
The damper material is changed from traditional aging-prone materials to elastic rubber vulcanization material. This material parameter change provides excellent fatigue resistance and durability, eliminating the aging problem while maintaining the damping function for long-term reliable operation.
4Device complexity
If no phase correction measures are implemented, then the structure can be simple, but severe phase distortion and sound interference occur
Solution Approach 1:
A phase ball assembly is introduced as an intermediary component between the membrane holder and the membrane units. This phase ball assembly generates phase difference to correct phase distortion and eliminate sound interference, while maintaining structural simplicity through its compact design.
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 system achieves ultra-thin structure, improved stability, reduced distortion, and enhanced sound quality by fixing the drive component directly to the support frame, using elastic rubber vulcanization for dampers, and incorporating a phase ball assembly to correct phase distortion.
Implementation Method 1
The drive component can receive alternating current and generate an electromagnetic field, thereby causing the drive component to vibrate and drive the membrane assembly on the membrane holder to vibrate
Implementation Method 2
when the vibration frequency of the phase ball assembly is coupled with a preset frequency, its vibration direction deviates from the vibration direction of the membrane, and a phase difference is generated, thereby achieving the correction or cancellation of phase distortion
Implementation Method 3
using elastic rubber vulcanization for dampers
Implementation Method 4
The first damper is directly connected to the support frame... The second damper is sleeved on the outer side of the membrane holder
Data Source
AI summary
A system including: a first damper attached to a support frame; a drive component penetrates the support frame and the first damper; a diaphragm holder having a first frame part, a framework unit, and a fixing part connected to the first frame part by the framework unit; the diaphragm holder connected to the first damper; the fixing part is connected to one end of the drive component; a diaphragm assembly having a diaphragm unit and an annular diaphragm; a phase ball assembly attached to the side of the annular diaphragm closer to the diaphragm holder; a second damper sleeved on the outside of the diaphragm holder, the diaphragm assembly. the phase ball assembly, and the first damper: the side in the second damper facing the diaphragm holder is connected to the diaphragm holder and the side in the second damper facing the support frame is connected to the support frame.