Coaxial Speaker With Integrated Diaphragms for Concentric Assembly
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Solution Overview
Problem
Coaxial speakers in the related art face issues with diaphragm concentricity during assembly, leading to poor sound quality and increased height and cost due to separate magnetic circuit systems.
Innovation Solution
The coaxial speaker design integrates the vibrating diaphragms of two sound production units and incorporates a magnetic circuit system with spaced-apart magnet portions to ensure concentricity and reduce height, while optimizing magnetic circuit utilization and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the vibrating diaphragms of two sound production units are separately assembled, then each unit can be independently manufactured, but the concentricity of the vibrating diaphragms cannot be ensured during assembly
Solution Approach 1:
The patent merges the first vibrating diaphragm and the second vibrating diaphragm into a single integrated diaphragm structure. This integration ensures that both diaphragms are concentric by design, eliminating the assembly alignment issues that arise when diaphragms are separately manufactured and assembled. The integrated diaphragm is manufactured as one piece, guaranteeing concentricity while still allowing independent voice coil and magnet assembly.
2Adaptability or versatility
If two sound production units are stacked along the height direction with independently separated magnetic circuit systems, then each unit can function independently, but the height of the coaxial speaker becomes too high
Solution Approach 1:
The patent merges the magnetic circuit systems of the two sound production units into a single shared magnetic circuit. The first magnet and the second magnet are positioned at different heights but share common structural elements, allowing both voice coils to be driven independently while reducing the overall height. The integrated diaphragm structure also contributes to height reduction by eliminating the need for separate diaphragm assemblies.
3Adaptability or versatility
If two sound production units are stacked along the height direction with independently separated magnetic circuit systems, then each unit can function independently, but the cost of the magnetic circuit system becomes too high
Solution Approach 1:
The patent merges the magnetic circuit systems by having the first magnet and second magnet share common structural components and positioning mechanisms. This shared magnetic circuit system reduces the total number of separate magnetic components needed, lowering material costs and assembly complexity while still allowing independent control of the two voice coils for different frequency ranges.
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 integrated design enhances sound quality by ensuring concentricity and reduces the speaker's height and magnetic circuit costs, improving market competitiveness.
Implementation Method 1
The first voice coil is configured to drive the first vibrating diaphragm to vibrate and produce sound. The second voice coil is configured to drive the second vibrating diaphragm to vibrate and produce sound. The magnetic circuit system includes a first magnetic gap and a second magnetic gap. The first voice coil is inserted into the first magnetic gap. The second voice coil is inserted into the second magnetic gap.
Data Source
AI summary
A coaxial speaker includes a magnetic circuit system, a first sound production unit, and a second sound production unit. The first sound production unit and the second sound production unit are coaxially disposed. The first sound production unit surrounds the second sound production unit. The first sound production unit includes a first vibrating diaphragm and a first voice coil. The first voice coil is configured to drive the first vibrating diaphragm to vibrate and produce sound. The second sound production unit includes a second vibrating diaphragm and a second voice coil. The second voice coil is configured to drive the second vibrating diaphragm to vibrate and produce sound. The coaxial speaker ensures concentricity of the first vibrating diaphragm and the second vibrating diaphragm, reduces a height of related products, and reduces cost of the magnetic circuit system.