Loudspeaker Supporting Structure for Membrane Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-end loudspeakers face challenges in achieving high sound quality without interference by balancing membrane rigidity and weight, as traditional designs struggle to achieve both properties simultaneously.
Innovation Solution
A supporting structure extending from the voice coil to the membrane's edge of the loudspeaker basket provides additional stability, allowing for the use of a thin, lightweight membrane, with a design featuring radially extending arms and a truss-like structure to enhance rigidity while minimizing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the membrane is made thinner to reduce weight, then the weight is reduced, but the rigidity and stability deteriorate
Solution Approach 1:
The membrane system is segmented into two functional components: a thin lightweight membrane for vibration and a separate supporting structure for rigidity. The supporting structure includes radial arms extending from the voice coil to the membrane edge, dividing the support function into multiple discrete elements that collectively provide stability without adding significant weight.
Solution Approach 2:
The supporting structure acts as an intermediary element between the voice coil and the membrane. It transfers mechanical forces from the voice coil to the membrane while providing structural stability, allowing the membrane itself to remain thin and lightweight without compromising vibration performance.
2Weight of moving object
If the membrane is made thinner to reduce weight, then the weight is reduced, but the strength deteriorates
Solution Approach 1:
The mechanical strength function is segmented from the membrane itself and assigned to a separate supporting structure. The supporting structure with its radial arms provides the necessary strength and rigidity, while the membrane maintains its thin, lightweight construction optimized for vibration and sound production.
3Stability of the object's composition
If a cone or dome shape is used to create stability, then the stability is improved, but the tone quality deteriorates
Solution Approach 1:
The stability function is segmented from the membrane's vibrational function. A flat membrane is used for optimal tone quality and vibration characteristics, while a separate supporting structure with radial arms provides the necessary stability and rigidity without interfering with the membrane's vibrational properties.
Solution Approach 2:
The supporting structure serves as an intermediary that provides structural stability without becoming part of the vibrational system. It supports the flat membrane during vibration, preventing deformation while allowing the membrane to produce clean, high-quality tones.
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 enables the production of high-quality sound with a membrane that is extremely lightweight and rigid, avoiding resonance issues and achieving high sound quality without compromising on stability.
Implementation Method 1
The voice coil and the at least one magnet are arranged in such a way that a magnetic field is generated by the voice coil and the at least one magnet in order to produce a sound
Implementation Method 2
The membrane can be caused to vibrate by means of the voice coil and the at least one magnet in order to produce a sound
Data Source
Figure 1~3
Figure 4~6
AI summary
The invention relates to a loudspeaker comprising a speaker basket with a rim, at least one magnet, a diaphragm, and a voice coil, wherein the voice coil is connected to the diaphragm. The diaphragm extends from the voice coil to the rim of the speaker basket. The diaphragm can be set into vibration by means of the voice coil and the magnet to produce a sound. According to the invention, a supporting structure is provided which extends from a contact area of the diaphragm with the rim of the speaker basket to the voice coil and is in supporting contact with the diaphragm.