Speaker Guide Member Rectangular Vibration Plate Slim Design
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Solution Overview
Problem
Conventional track type speakers face limitations in enlarging their effective vibration area, leading to reduced sound radiation efficiency and unbalanced vibration support, resulting in distorted sound and potential mechanical issues due to reduced size and magnetic flux density.
Innovation Solution
A speaker design featuring a guide member between the motion part and vibration plate, with a track-shaped vibration plate and motion part, and a track-shaped damper to enhance support and prevent distortion, allowing for a slim form factor while maintaining high-quality sound reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the speaker size is reduced to achieve a slim design, then the form factor is improved, but the effective vibration area is reduced leading to deteriorated sound radiation efficiency
Solution Approach 1:
The patent transitions from a conventional circular vibration plate to a rectangular vibration plate, changing the geometric dimensionality to maximize the use of available space in a slim speaker enclosure. This dimensional change allows the vibration plate to utilize the full width and length of the speaker cavity, maintaining effective vibration area despite reduced overall speaker volume.
Solution Approach 2:
The patent modifies key parameters including the vibration plate shape (circular to rectangular), the magnetic circuit configuration, and the voice coil assembly dimensions. These parameter changes enable optimization of sound radiation efficiency within a reduced speaker volume by adjusting the physical characteristics of critical components.
2Area of moving object
If the vibration plate is made rectangular to maximize vibration area, then the effective vibration area is improved, but unbalanced vibration support occurs leading to distorted sound
Solution Approach 1:
The patent applies local quality by providing differentiated support structures at different locations of the rectangular vibration plate. Multiple voice coil assemblies are positioned at specific locations (e.g., corners or edges) rather than uniformly distributed, providing localized support where needed to maintain vibration balance despite the asymmetric rectangular geometry.
Solution Approach 2:
The patent embraces the asymmetric rectangular shape of the vibration plate and matching components rather than forcing a symmetric circular design. The magnetic circuit, voice coil assemblies, and support structures are configured to match the asymmetric rectangular geometry, transforming the potential disadvantage of asymmetry into a design feature that maximizes space utilization while maintaining vibration balance through proper component placement.
3Volume of moving object
If the magnetic part is reduced in size, then the speaker size is reduced, but the magnetic flux density is reduced affecting speaker function
Solution Approach 1:
The patent employs composite magnetic circuit structures combining different magnetic materials with varying properties. By using composite materials in the magnetic circuit, the design maintains high magnetic flux density in a reduced volume through strategic material selection and configuration, allowing smaller magnet dimensions without sacrificing magnetic performance.
Solution Approach 2:
The patent changes the magnetic circuit configuration from conventional circular arrangements to rectangular configurations that match the vibration plate geometry. This dimensional change allows more efficient utilization of magnetic material in the available space, maintaining flux density while reducing overall speaker size through optimized spatial arrangement of magnetic components.
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 enables high-quality sound and high power output with a slim design by suppressing unnecessary vibration modes and improving sound reproduction efficiency, reducing mechanical friction and distortion.
Implementation Method 1
The energy conversion part 40 and 50 includes a fixing part 50 and a motion part 40 relatively moved with respect to the fixing part 50 by an electromagnetic force
Implementation Method 2
The vibration plate 20 is connected to the motion part 40 to reproduce a sound by using the vibration of the vibration plate 20
Data Source
AI summary
A speaker is disclosed. A speaker includes a fixing part (500) fastened to a base frame; a motion part moved (400) with respect to the fixing part by an electromagnetic force; a vibration plate (200) that vibrates in communication with the motion part; and a guide member (800) provided between the motion part (400) and the vibration plate (200). Therefore, according to the present invention, a speaker capable of reproducing a high quality sound and high power with a slim design may be embodied.