Coaxial Speaker With Shared Magnetic Circuit for Compact Assembly
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Solution Overview
Problem
Coaxial speakers have complex structures due to independent vibration and magnetic circuit systems for treble and bass units, leading to increased size and installation challenges.
Innovation Solution
A coaxial speaker design with shared magnetic circuit and voice coil systems, featuring a first and second vibration system with integrated diaphragms for treble and bass sounds, respectively, and a simplified assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the treble unit and bass unit each include independent vibration systems and independent magnetic circuit systems, then the acoustic performance is ensured, but the structure becomes complex and the overall size increases
Solution Approach 1:
The patent combines the magnetic circuit systems of the treble unit and bass unit into a single integrated magnetic circuit system. The magnetic gap of this unified system accommodates both voice coils, eliminating the need for separate magnetic circuit systems while maintaining the acoustic performance of both speaker units.
Solution Approach 2:
The single magnetic circuit system serves dual functions by providing magnetic fields for both the treble unit voice coil and the bass unit voice coil. This multi-functional design reduces component count and structural complexity while ensuring both speaker units operate effectively.
2Reliability
If the treble unit and bass unit each include independent vibration systems and independent magnetic circuit systems, then the acoustic performance is ensured, but the overall size of the coaxial speaker increases
Solution Approach 1:
The patent merges the magnetic circuit systems of both speaker units into a single compact structure. By positioning both voice coils within the magnetic gap of one unified magnetic circuit system, the overall volume of the coaxial speaker is reduced compared to having separate magnetic circuit systems for each unit.
Solution Approach 2:
The treble unit vibration system is positioned within the central region of the bass unit vibration system. The first voice coil is located in the central part of the magnetic gap while the second voice coil surrounds it, creating a nested arrangement that minimizes the overall size of the speaker assembly.
3Reliability
If the treble unit and bass unit each include independent vibration systems and independent magnetic circuit systems, then the acoustic performance is ensured, but the installation becomes inconvenient
Solution Approach 1:
The integration of both vibration systems and the single magnetic circuit system into one unified structure simplifies the installation process. Instead of installing separate magnetic circuit systems and aligning multiple components, the pre-integrated design allows for easier mounting while maintaining the acoustic performance of both treble and bass units.
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 design reduces overall size, simplifies installation, and lowers costs while providing high-quality full-range sound with improved acoustic performance.
Implementation Method 1
a magnetic circuit system mounted with the fixing member and having a magnetic gap, a voice coil at least partially located into the magnetic gap
Data Source
AI summary
The present invention provides a coaxial speaker including a fixing member, a magnetic circuit system, a voice coil, a first vibration system connected with the voice coil, and a second vibration system connected with the voice coil and arranged surrounding the first vibration system. The second vibration system locates coaxially with the first vibration system. The first vibration system includes a first diaphragm and a first support connecting the first diaphragm and the voice coil. The second vibration system includes a second diaphragm and a second support connecting the second diaphragm and the voice coil. The first diaphragm is used for generating treble sound. The second diaphragm is used for generating bass sound. Bass sound and treble sound form a full-range speaker, providing high-quality sound. Moreover, the assembly process is simplified by sharing voice coil, which improves assembly efficiency and reduces costs.