Hand-Cranked Mobile Phone Power Unit With Supercapacitor Buffer
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Solution Overview
Problem
Mobile electronic devices, such as smartphones, require batteries or external power sources, which limit their operability in remote locations and struggle to meet high power requirements efficiently.
Innovation Solution
A manually-powered 2-way radio communication device that generates its own electrical power via a hand-cranked kinetic dynamo generator, using a supercapacitor for energy storage and a low-power microprocessor, eliminating the need for batteries or external power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a battery is used to power mobile electronic devices, then the device can operate independently, but the charging transfer power is slow and inefficient, and it struggles to meet high power requirements
Solution Approach 1:
The patent replaces the static battery power delivery system with a dynamic hand-cranked generator that can deliver high instantaneous power when needed. The mechanical input allows the user to directly control the power generation rate, enabling rapid charging that adapts to the device's immediate power requirements rather than being limited by battery chemistry charge rates.
Solution Approach 2:
The patent substitutes the electrical battery-based power system with a mechanical power generation system. Instead of relying on electrochemical energy storage and slow electrical discharge, the system uses manual mechanical input through a crank mechanism that directly generates electrical power through electromagnetic induction, bypassing the inefficiencies of battery charging and discharging.
2Adaptability or versatility
If a battery is used in mobile devices, then the device can operate without external power, but it requires carrying additional weight and limits operability in remote locations
Solution Approach 1:
The patent extracts the energy storage function from the device by eliminating the battery entirely. Instead of carrying heavy chemical energy storage, the system extracts power on-demand through a manual crank mechanism, converting mechanical work directly into electrical energy. This removes the weight penalty of batteries while maintaining the ability to operate independently in remote locations.
Solution Approach 2:
The system enables the user to serve themselves as the power source. Rather than relying on pre-stored battery energy or external power infrastructure, the user directly generates power through manual cranking, making the device self-sufficient in any location without carrying heavy energy storage components.
3Power
If a hand-cranked generator is used to power the device, then high power can be generated instantly, but the device requires continuous manual input to maintain operation
Solution Approach 1:
The patent incorporates a flywheel mechanism that stores kinetic energy temporarily. When the user cranks the generator, the flywheel accumulates rotational energy and momentum, allowing the system to maintain power output even when the user releases the crank. This preliminary energy storage in mechanical form reduces the burden of continuous manual input while preserving high instantaneous power capability.
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 device operates continuously and indefinitely at low power levels, allowing communication without kinetic input for extended periods, with a high operating time to cranking time ratio, and supports various communication capabilities.
Implementation Method 1
capable of internally generating its own electrical power via a kinetic dynamo generator that is hand-cranked by a user
Implementation Method 2
The dynamo has a sufficient capacitor buffer within the circuitry to allow for communication operation to occur for a period of time without kinetic energy input
Data Source
AI summary
Embodiments of a manually-powered communication device such as a cellular mobile telephone, a satellite phone, or a walkie-talkie include a manually operable crank; a dynamo flywheel generator arranged to receive energy input from the manually operable crank; a low wattage power supply, such that the power supply is operably connected to the dynamo flywheel generator and receives energy therefrom; a capacitor with a buffer that comprises a power storage capacity sufficient to operate the mobile telephone without continuous manual input, the capacitor receiving energy from the power supply; a processor operably connected to the capacitor and able to receive energy therefrom; and a modem that is operably connected to the processor and arranged to receive energy therefrom. The crank, the generator, and the capacitor are all included in a power unit portion of the device; the power supply, processor, and modem are included in a main body of the device.