Multifunctional Sound Device Sharing Magnetic System
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Solution Overview
Problem
Current electronic devices face a challenge in improving speaker and motor performance due to limited internal space, necessitating smaller, more compact designs that also enhance vibration functionality.
Innovation Solution
A multifunctional sound device is designed with a housing containing a sound unit and a vibrator, both sharing a magnetic system to minimize space usage. The sound unit includes a vibration system and magnetic circuit system that drives the vibrator to vibrate in multiple directions, enhancing vibration effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the size of speaker module and motor is increased to improve performance, then performance is improved, but occupied space increases
Solution Approach 1:
The patent combines speaker and motor functions into a single integrated device. The sound unit includes a vibration system and magnetic circuit system that serves both acoustic output and vibration generation purposes. The vibrator is suspended within the same housing and shares the magnetic circuit system, allowing one device to fulfill multiple functions that traditionally required separate components.
Solution Approach 2:
The magnetic circuit system is designed to perform multiple functions: driving the vibration system for sound generation and interacting with coils to drive the vibrator for vibration effects. The vibration system and vibrator share the same magnetic field environment, enabling the device to function as both a speaker and a vibration motor simultaneously.
2Volume of moving object
If the size of speaker module and motor is decreased to reduce occupied space, then occupied space is reduced, but performance deteriorates
Solution Approach 1:
The patent combines speaker and motor functions into a single integrated device. The sound unit includes a vibration system and magnetic circuit system that serves both acoustic output and vibration generation purposes. The vibrator is suspended within the same housing and shares the magnetic circuit system, allowing one device to fulfill multiple functions that traditionally required separate components.
Solution Approach 2:
The vibrator is designed to vibrate in multiple directions (second direction and third direction perpendicular to each other and to the first direction). This multi-directional vibration capability allows the device to achieve strong vibration effects in a compact form factor by utilizing spatial dimensions efficiently.
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 design effectively reduces occupied space while enhancing vibration performance, addressing the need for smaller yet more effective speaker and motor systems in compact electronic devices.
Implementation Method 1
The magnetic circuit system interacts with the coils to drive the vibrator to vibrate in a second direction and a third direction
Implementation Method 2
the magnetic circuit system drives the vibration system to reciprocally vibrate and generate sound along a first direction
Implementation Method 3
the two elastic portions are elastically deformed when the vibrator vibrates
Data Source
AI summary
A multifunctional sound device includes a housing, a sound unit, a vibrator, and coils. The housing includes an accommodating cavity, and the sound unit is accommodated in the accommodating cavity and is fixedly connected to the housing. The sound unit includes a frame, a vibration system, and a magnetic circuit system. The vibration system is disposed in the frame, and the magnetic circuit system drives the vibration system to reciprocally vibrate and generate sound along a first direction. The sound unit and the vibrator are assembled in the housing and share one magnetic system, which saves space and greatly reduces occupied space. Moreover, the magnetic circuit system interacts with the coils to drive the vibrator to vibrate in the second direction and the third direction, thereby enhancing vibration effect.