Multifunctional Sounding Device Integrating Speaker and Vibration
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Solution Overview
Problem
Existing electronic devices require separate installations for speakers and vibrators, leading to a cumbersome manufacturing process and significant occupancy of interior space due to their individual components.
Innovation Solution
A multifunctional sounding device is designed, integrating a speaker unit with a vibration assembly and magnetic assembly, along with a driving coil, to emit sounds and provide vibrations, while minimizing space through a compact design that includes a housing, elastic member, flexible sealing membrane, and integrally formed components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate speaker and vibrator are installed in electronic devices, then sound emission and vibration functions are achieved, but device complexity and space occupancy increase
Solution Approach 1:
The patent combines the speaker and vibrator into a single integrated unit called a 'multifunctional sounding device'. The speaker unit includes a vibration assembly with a diaphragm for sound emission and a magnetic assembly with magnets for vibration generation. A single driving coil serves dual purposes: driving the diaphragm for sound emission and driving the vibration assembly for vibration provision. This merging eliminates the need for separate speaker and vibrator installations, thereby reducing manufacturing complexity while maintaining both sound emission and vibration functions.
2Adaptability or versatility
If separate speaker and vibrator are installed in electronic devices, then sound emission and vibration functions are achieved, but interior space occupancy increases
Solution Approach 1:
The patent integrates the speaker and vibrator into a single compact unit, significantly reducing the space required compared to separate installations. The speaker unit's integrated design allows both sound emission and vibration functions to coexist in a minimized volume, directly addressing the space occupancy issue in portable electronic devices.
3Volume of moving object
If integrated speaker unit is designed, then space occupancy is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The integrated speaker unit is divided into distinct functional assemblies: a vibration assembly containing the diaphragm and voice coil, and a magnetic assembly containing the magnets. The driving coil is positioned to interact with both assemblies. This segmentation allows for modular manufacturing and assembly, where each sub-assembly can be manufactured and tested separately before integration, thereby managing manufacturing precision requirements more effectively while maintaining the compact integrated design.
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 solution effectively combines sound emission and vibration functions in a single device, reducing manufacturing complexity and space occupancy, thereby enhancing the efficiency and compactness of electronic devices.
Implementation Method 1
a voice coil connected between the diaphragm and the elastic supporting member and configured to generate a magnetic field, the magnetic assembly including a main magnet and an auxiliary magnet spaced apart from the main magnet for forming a magnetic gap; wherein the voice coil locates in the magnetic gap
Implementation Method 2
a driving coil fixed to the housing and configured to drive the speaker unit for vibrating in a second direction and providing vibrations, the second direction being perpendicular to the first direction
Data Source
AI summary
Disclosed is a multifunctional sounding device which combines functions of emitting sounds and providing vibrations and includes a speaker unit including a vibration assembly including a first ring and a diaphragm vibrating along a first direction and a magnetic assembly including a main magnet and an auxiliary magnet; an elastic member suspending the speaker unit; a second ring surrounding the first ring; a flexible sealing membrane connected between the two rings; and a driving coil driving the speaker unit for vibrating in a second direction. The two directions are perpendicular. The driving coil includes two sides respectively facing the main magnet and the auxiliary magnet in the first direction. The diaphragm, the first ring, the flexible sealing membrane and the second ring are integrally formed, thereby ensuring concentricity of them four and avoiding glue width requirements so as to release spaces.