Speaker Module Wireless Charging via Pneumatic Pressure
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Solution Overview
Problem
Current mobile devices face challenges in prolonging standby time due to limited battery capacity and require cumbersome charging methods, such as separate generators or coil-based wireless charging, which increase device size and hinder the development of smaller, lighter designs, especially in emergency or remote situations where cable charging is impractical.
Innovation Solution
A charging adapter and mobile terminal system utilizing an existing speaker module (SPK) to generate electricity through air pressure variations, forming a sealed cavity with a pneumatic pump, cover, and controller, allowing for wireless charging without the need for cables or additional power generation devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate generator or power generation device is installed in the mobile terminal to enable charging, then charging capability is improved, but the device size and weight increase significantly
Solution Approach 1:
The speaker module is designed to serve dual purposes: audio output during normal operation and power generation during charging. The same speaker components (diaphragm, coil, magnet) are utilized for both functions, eliminating the need for a separate generator and reducing overall device weight while maintaining charging capability
Solution Approach 2:
The charging function is merged with the existing speaker module rather than being implemented as a separate component. The speaker module and charging mechanism are combined into a single integrated unit, allowing the mobile terminal to achieve charging capability without adding separate power generation devices
2Ease of operation
If coil-based wireless charging is implemented to eliminate cable charging, then charging convenience is improved, but device size increases due to the required coupling coil
Solution Approach 1:
The speaker module performs both audio output and wireless power reception functions. The existing speaker components are utilized for charging purposes, eliminating the need for a separate coupling coil and maintaining device compactness while achieving cable-free charging convenience
Solution Approach 2:
The wireless charging function is merged with the speaker module, combining power reception capability with the existing audio component. This integration avoids adding separate wireless charging hardware, thereby maintaining small device volume while enabling convenient wireless charging
3Volume of moving object
If the mobile terminal is designed to be smaller and thinner, then portability is improved, but battery capacity is limited
Solution Approach 1:
The system enables opportunistic charging by utilizing the speaker module for power generation whenever needed, rather than relying solely on pre-charged battery capacity. This allows the device to be recharged multiple times during use, effectively extending operational duration without increasing battery size or device volume
Solution Approach 2:
The mobile terminal charges itself by utilizing its own speaker module for power generation. The device does not require external power sources or larger batteries, as it can generate its own charging power through the speaker mechanism, maintaining compact dimensions while ensuring continuous operation
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
Enables convenient and timely charging of mobile terminals anywhere, eliminating the need for cables and maintaining device usability in emergencies by leveraging existing SPK modules for efficient energy conversion and storage.
Implementation Method 1
a pneumatic pump, a pneumatic cover, a sealing rubber gasket, an air pressure monitor for monitoring air pressure intensity in the pneumatic cover
Implementation Method 2
an existing device of the mobile terminal can be used for charging... SPK modules for efficient energy conversion
Data Source
AI summary
A charging adapter and a mobile terminal are disclosed. The charging adapter includes: a pneumatic pump, pneumatic cover, a sealing rubber gasket, a pneumatic valve, an air pressure monitor for monitoring air pressure intensity in the pneumatic cover, and an air pressure controller for controlling the pneumatic pump and the pneumatic valve to be turned on and off. The pneumatic pump, the air pressure monitor, the air pressure controller and the pneumatic valve are fixed at any location on a side surface of the pneumatic cover respectively. The sealing rubber gasket is disposed at a periphery of a front surface of the pneumatic cover. And the pneumatic cover is configured to tightly fit with a sound hole of a speaker SPK module of a mobile terminal through the sealing rubber gasket during charging, thereby forming a sealed cavity.