Wireless Power Repeater with Motorized Alignment
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Solution Overview
Problem
In wireless power supplying systems using magnetic field resonance, the efficiency is maximized at a specific position and angle, but manual adjustments for positional displacement or angle displacement of the repeater device are difficult without a measuring instrument, leading to reduced efficiency.
Innovation Solution
A wireless power supplying system that includes a power transmission device, a repeater device with a motor or positioner to adjust the angle and position of its resonance coil, and a power reception device, allowing for automatic impedance matching and alignment to maintain high efficiency without the need for exclusive measuring instruments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a repeater device is disposed between power transmission device and power reception device to improve efficiency, then power transmission efficiency is improved, but position displacement or angle displacement occurs which decreases efficiency
Solution Approach 1:
The repeater device automatically adjusts its own position and angle using a driving section (motor or positioner) based on feedback about optimal alignment, eliminating the need for manual measurement and adjustment by operators. The system self-corrects alignment issues to maintain maximum transmission efficiency.
Solution Approach 2:
The system uses power transmission information from the power transmission device and power reception device to provide feedback to the repeater device's driving section, enabling automatic adjustment of the second resonance element's position and angle to optimize the magnetic field resonance relationship.
2Loss of energy
If manual adjustment of repeater device position and angle is performed, then alignment can be optimized, but exclusive measuring instruments and techniques are required making implementation difficult
Solution Approach 1:
The repeater device incorporates a driving section that automatically performs alignment adjustment without requiring external measuring instruments or specialized techniques. The system integrates the adjustment capability internally, making implementation straightforward and eliminating the need for exclusive measurement tools.
Solution Approach 2:
The patent replaces complex manual measurement and adjustment procedures with an automated driving section that uses power transmission information to directly control the position and angle of the second resonance element, substituting mechanical measurement systems with an information-based control system.
3Length of stationary object
If magnetic field resonance method is used to transmit power over greater distance, then transmission distance is extended, but alignment roughness tolerance increases which may reduce efficiency
Solution Approach 1:
The repeater device incorporates a dynamic adjustment mechanism (driving section) that continuously optimizes the position and angle of the second resonance element, allowing the system to maintain high transmission efficiency even when operating at extended transmission distances where alignment tolerances are more critical.
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 system achieves high power supplying efficiency by automatically adjusting the repeater device's position and angle, extending the power transmitting distance beyond conventional magnetic field resonance systems and eliminating the need for specialized measurement tools.
Implementation Method 1
the power transmission device including a first resonance element for receiving the power supplied thereto and transmitting the received power, the repeater device including a second resonance element for receiving and transmitting the power transmitted thereto through a magnetic field resonance relationship
Implementation Method 2
the repeater device including a second resonance element for receiving and transmitting the power transmitted thereto through a magnetic field resonance relationship
Implementation Method 3
the power reception device including a third resonance element for receiving the power transmitted thereto from the repeater device though a magnetic field resonance relationship
Data Source
AI summary
Disclosed herein is a wireless power supplying system, including a power transmission device adapted to transmit power supplied thereto, a repeater device adapted to repeat the transmission power of the power transmission device, and a power reception device adapted to receive the power repeated by said repeater device.