Adjustable Wireless Charging Unit for Mobile Devices
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Solution Overview
Problem
Existing wireless power transmission technologies face inefficiencies due to positional and angular changes of mobile devices, which affect the coupling coefficient and resonance impedance, leading to reduced power transmission efficiency.
Innovation Solution
A wireless charging apparatus with an adjustable connecting unit that allows for variable positioning and angling of the charging unit relative to the power supply unit, maintaining optimal alignment between the source and target resonators for efficient power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the mobile device is positioned or angled for user convenience, then ease of operation is improved, but power transmission efficiency deteriorates due to changes in coupling coefficient and resonance impedance
Solution Approach 1:
The connecting unit is designed to be adjustable rather than fixed, allowing it to adapt its position and angle dynamically. This enables the system to maintain optimal resonance conditions even when the mobile device is positioned for user convenience, resolving the contradiction between ease of operation and power transmission efficiency.
Solution Approach 2:
The system allows changes in the physical parameters of the connecting unit (position, angle) to compensate for changes in the coupling coefficient and resonance impedance. By adjusting these parameters, the system maintains efficient power transmission despite variations in device positioning for user comfort.
2Device complexity
If the position and angle of the charging unit are fixed, then device complexity is reduced, but adaptability deteriorates when mobile device position or angle changes
Solution Approach 1:
The connecting unit incorporates adjustable mechanisms that allow position and angle changes while maintaining a relatively simple overall structure. This dynamic capability provides adaptability to different device positions without significantly increasing system complexity.
3Loss of energy
If the connecting unit is made adjustable to maintain optimal alignment, then power transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The connecting unit uses adjustable mechanisms that provide the necessary adaptability to maintain optimal resonance alignment while keeping the overall structure relatively simple. The adjustment capability is integrated in a way that balances complexity with performance benefits.
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
Ensures maximum efficiency of wireless power transmission even when the mobile device is positioned or angled for user convenience, by maintaining a face-to-face arrangement of the resonators and adjusting the connecting unit to compensate for changes in the coupling coefficient and resonance impedance.
Implementation Method 1
a charging unit configured to transmit power wirelessly to a mobile device
Implementation Method 2
maintaining optimal alignment between the source and target resonators for efficient power transfer
Data Source
AI summary
A wireless charging apparatus includes a charging unit configured to transmit power wirelessly to a mobile device, and a power supply unit configured to supply power to the charging unit. The wireless charging apparatus further includes a connecting unit configured to connect the charging unit to the power supply unit such that a position and an angle of the charging unit are adjustable.