Vibration Diaphragm Wireless Audio Signal Transmission
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Solution Overview
Problem
Conventional sound generators face issues with long-distance voice coil leads, which are prone to breakage and polarization, and require additional space, leading to noise and structural challenges in internal design.
Innovation Solution
Integration of a wireless transmission unit and wireless charging unit on the vibration diaphragm, allowing for wireless signal processing and energy supply to the voice coil, reducing the need for long voice coil leads and minimizing noise and structural interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voice coil leads are routed through the housing for electrical connection, then electrical signals can be exchanged with external circuits, but the leads become long and prone to breakage and polarization
Solution Approach 1:
The patent replaces the mechanical wire-based electrical connection system with a wireless electromagnetic communication system. The voice coil is electrically connected to a wireless communication module integrated on the vibration diaphragm, which transmits control signals and power wirelessly, eliminating the physical voice coil leads entirely and resolving the reliability and length issues
Solution Approach 2:
The patent merges the wireless communication module directly onto the vibration diaphragm structure, integrating multiple functions (wireless communication, signal processing, and structural support) into a single integrated component, thereby eliminating the need for separate lead routing and reducing overall system complexity
2Object-generated harmful factors
If long voice coil leads are used for electrical connection, then external circuit signals can be transmitted, but collision noise occurs and internal structural design becomes difficult
Solution Approach 1:
The patent eliminates the mechanical wire routing system and replaces it with an electromagnetic wireless communication system. The wireless communication module integrated on the vibration diaphragm transmits signals without physical leads, thereby eliminating collision noise and simplifying internal structural design
Solution Approach 2:
The patent extracts and removes the voice coil leads from the system entirely, keeping only the essential functional components (voice coil, magnetic circuit, and integrated wireless module). This extraction eliminates the source of collision noise and reduces structural 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 solution reduces noise, improves sound quality, and extends the lifespan of the sound generator by eliminating the risk of voice coil lead breakage and polarization, while optimizing internal space usage.
Implementation Method 1
a wireless charging unit which is electrically connected with the wireless transmission unit, generating electric energy under an action of an external power supply module
Implementation Method 2
The external control circuit inputs electrical energy into the voice coil via the voice coil leads and the voice coil vibrates under an ampere force of a magnetic circuit system
Data Source
AI summary
Provided is a vibration diaphragm, comprising a wireless transmission unit which is arranged on one side of the vibration diaphragm where a voice coil can be fixed, and is used for electrically connecting with the voice coil, wirelessly receiving an audio signal transmitted from an external terminal and processing the audio signal to obtain audio current, and inputting the audio current into the voice coil; and a wireless charging unit which is electrically connected with the wireless transmission unit, generating electric energy under an action of an external power supply module and inputting the electric energy into the wireless transmission unit. Also provided are a vibration assembly, a sound generator and a sound generator module. With integration of the receiving and processing of audio signal on the vibration diaphragm, long-distance routing of a voice coil lead of the voice coil is avoided, noise is reduced, and product quality is improved.