Speaker Diaphragm Fixing Ring Structure for Reliability
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Solution Overview
Problem
Speakers in portable mobile electronic products have low overall strength and reliability due to the separation of elastic members from auxiliary diaphragms and elastic support assemblies from the frame, leading to reduced sound quality and increased risk of damage.
Innovation Solution
A speaker design featuring a ring-shaped fixing ring that connects the elastic support assemblies to the frame, with a diaphragm fixing portion and supporting portions that enhance the bonding area, forming a firm structure that reduces vibration amplitude and heat generation, thereby improving reliability and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the elastic member and auxiliary diaphragm are fixed by gluing, and the elastic support assemblies are directly attached to the frame, then the assembly process is simple, but the overall strength and reliability of the speaker is low
Solution Approach 1:
The patent combines multiple components into an integrated structure. The diaphragm fixing portion and diaphragm supporting portion are formed as integral parts of the diaphragm assembly, creating a unified structure that eliminates separate attachment operations and enhances overall strength while maintaining assembly simplicity.
Solution Approach 2:
The patent employs composite construction by integrating the diaphragm fixing portion and diaphragm supporting portion with the main diaphragm structure. This composite approach creates a multi-functional assembly that simultaneously provides support, fixation, and structural integrity, resolving the contradiction between simple assembly and high reliability.
2Object-affected harmful factors
If the elastic support assemblies are spaced apart from the magnetic circuit unit, then the vibration amplitude is reduced and heat generation is minimized, but the structural support may be insufficient
Solution Approach 1:
The patent transitions from a single-point support structure to a distributed multi-point support system. The diaphragm fixing portion and diaphragm supporting portion create additional support dimensions, distributing the load and providing structural integrity while maintaining the necessary spacing from the magnetic circuit unit to reduce vibration and heat.
3Reliability
If additional structural support features are added to enhance reliability, then the overall strength increases, but the device complexity and assembly process become more complicated
Solution Approach 1:
The diaphragm fixing portion and diaphragm supporting portion serve multiple functions simultaneously: they provide structural support, enable fixation, maintain spacing, and reduce vibration. This multi-functionality eliminates the need for separate structural support features, enhancing reliability while avoiding increased device complexity.
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 enhanced structural design increases the overall strength and reliability of the speaker by firmly fixing the elastic support assemblies and reducing vibration-related heat, while simplifying the assembly process without the need for additional structural support features.
Implementation Method 1
a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound
Implementation Method 2
an elastic member fixed to a side of the fixing ring close to the diaphragm, and an auxiliary diaphragm provided on a side of the elastic member away from the diaphragm
Data Source
AI summary
Provided is a speaker, including a frame; a vibration unit fixed to the frame; and a magnetic circuit unit driving the vibration unit to vibrate and produce sound and provided with a magnetic gap. The vibration unit includes a diaphragm, a voice coil, and an elastic support assembly; the diaphragm includes a diaphragm body, a diaphragm fixing portion, and a diaphragm supporting portion; the vibration unit further includes a fixing ring; and the elastic support assembly includes an elastic member fixed to a side of the fixing ring close to the diaphragm, and an auxiliary diaphragm provided on a side of the elastic member away from the diaphragm; and the diaphragm supporting portion is fixed to a side of the elastic member away from the fixing ring. With this structure, the overall strength and reliability of the speaker can be improved.