Multi-function Speaker Low-Frequency Vibration via Elastic Arm Extension
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional multi-function speakers experience limited low-frequency performance due to a short fixed arm in the elastic member, resulting in a higher f0 when operating at low frequencies.
Innovation Solution
The multi-function speaker design incorporates a longer elastic arm and an avoidance portion on the lower plate to provide sufficient vibration space, enhancing low-frequency vibration performance by suspending the magnetic circuit system effectively within the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the fixed arm length is kept short for compact structure, then the device complexity is reduced, but the low-frequency performance deteriorates due to higher resonant frequency
Solution Approach 1:
The patent extends the fixed arm in a specific spatial dimension to increase its length, thereby lowering the resonant frequency and improving low-frequency performance without significantly increasing overall device complexity. This dimensional extension allows the elastic member to achieve better acoustic suspension characteristics.
2Reliability
If the elastic arm length is increased to improve low-frequency performance, then the resonant frequency is reduced, but the device complexity increases
Solution Approach 1:
The patent employs an elastic member with a dynamically optimized arm length that can flex and deform during operation. This dynamic design allows the fixed arm to achieve an effective longer length for lowering resonant frequency while maintaining a compact overall structure, thus improving low-frequency performance without proportionally increasing 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
This configuration reduces the resonant frequency (f0) and improves the low-frequency vibration performance of the speaker, enhancing its overall operational efficiency.
Implementation Method 1
The elastic member includes an elastic arm and a fixed arm that is connected to each other, the fixed arm is fixed to the frame and the secondary magnet
Implementation Method 2
The vibration system includes a diaphragm and a voice coil. One end of the voice coil is suspended in the magnetic gap, and the other end of the voice coil is fixed to the diaphragm
Data Source
AI summary
A multi-function speaker includes a frame having a receiving space, a magnetic circuit system, a vibration system, and an elastic member configured to suspend the magnetic circuit system in the receiving space. The frame includes two first side portions oppositely arranged, and two oppositely disposed second side portions connecting the two first side portions. The magnetic circuit system includes a lower plate, and a magnet assembly disposed on the lower plate.