Coaxial Speaker Shared Magnetic Circuit
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Solution Overview
Problem
Existing speakers with separate tweeters and main horns have higher manufacturing costs due to the need for distinct magnetic circuits and frames for each unit.
Innovation Solution
A coaxial speaker design where both sound-producing units share a magnetic circuit unit and a frame, with the magnetic circuit unit comprising a magnetically conductive assembly and a magnet component, and the frame having a first and second main body portion arranged coaxially.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate magnetic circuits and frames are provided for each sound-producing unit, then each unit can be independently optimized, but manufacturing costs increase
Solution Approach 1:
The patent merges the magnetic circuit and frame structures into a single integrated assembly that accommodates both sound-producing units. The magnetic circuit includes a first magnetic circuit portion for the first sound-producing unit and a second magnetic circuit portion for the second sound-producing unit, both sharing common magnetic components. The frame integrates both units structurally, reducing the number of separate components and lowering manufacturing costs while maintaining acoustic performance through proper magnetic circuit design.
2Reliability
If separate magnetic circuits and frames are provided for each sound-producing unit, then structural optimization is easier, but device complexity increases
Solution Approach 1:
The patent combines multiple separate structures into an integrated assembly where the magnetic circuit and frame work together as a unified system. The magnetic circuit includes interconnected magnetic portions that serve both sound-producing units, and the frame provides a common structural platform, reducing the overall number of discrete components and simplifying the device architecture.
Solution Approach 2:
The integrated magnetic circuit and frame structure serves multiple functions simultaneously: it provides structural support for both sound-producing units, establishes the magnetic field paths for both units, and creates a unified mechanical assembly. This multi-functionality reduces structural complexity by eliminating redundant 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
This design reduces manufacturing costs by sharing components between sound-producing units while improving acoustic performance by ensuring coaxial and coplanar sound production.
Implementation Method 1
a magnetic circuit unit, the magnetic circuit unit including a magnetically conductive assembly and a magnet component
Implementation Method 2
at least part of the second voice coil is located in the magnetic gap corresponding to the first magnetic conductor, and the first sound-producing unit includes a first voice coil, at least part of the first voice coil is located in the magnetic gap corresponding to the second magnetic conductor
Data Source
AI summary
Provided is speaker, including magnetic circuit unit, frame fixed to the magnetic circuit unit, and first and second sound-producing unit both fixed to the frame. The magnetic circuit unit includes magnetically conductive assembly with lower clamping plate and magnet component located on lower clamping plate. A third magnetic conductor is arranged around the magnet component, first magnetic conductor, and second magnetic conductor. A first and a second voice coil are respectively located in magnetic gaps between third magnetic conductor and second magnetic conductor and between third magnetic conductor and first magnetic conductor. The two sound-producing units share the magnetic circuit unit. The frame includes a first and a second main body portion arranged coaxially and connected to each other, a first diaphragm is fixed to second main body portion, and second diaphragm is fixed between first main body portion and second main body portion.