Wireless Charging Panel Alignment via Photosensitive and Magnetic Sensors
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Solution Overview
Problem
Existing wireless charging systems for electric automobiles require manual alignment of charging panels, leading to inefficiencies and potential damage, as well as high costs due to the need for manual selection and complex infrastructure setups.
Innovation Solution
An aligning and matching system using photosensitive sensors and magnetic sensors to automatically position and align wireless charging panels, eliminating the need for manual intervention and reducing costs by enabling efficient and rapid charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual alignment control is used to position the wireless charging panels, then the alignment can be achieved, but the charging process becomes slow and efficiency is reduced
Solution Approach 1:
The patent replaces manual mechanical alignment control with an automated optical detection and positioning system. Photosensitive sensors detect the position of the receiving panel relative to the transmitting panel, and the system automatically adjusts positioning to achieve optimal alignment, eliminating the need for manual intervention and significantly improving charging efficiency.
Solution Approach 2:
The wireless charging system performs self-alignment through automated detection and positioning mechanisms. The photosensitive sensors and control system enable the charging panels to automatically find and maintain optimal positioning without requiring driver intervention, making the system self-sufficient in the alignment process.
2Loss of energy
If the primary side coil and secondary side coil are moved upwards or downwards to be close to each other, then power conversion efficiency is improved, but the charging process time is prolonged due to retraction time required
Solution Approach 1:
The patent extracts the alignment adjustment function from the charging panels themselves and implements it separately through the ground-based transmitting panel positioning system. The transmitting panel can be independently positioned horizontally and vertically to achieve optimal alignment with the receiving panel, eliminating the need for the receiving panel to move and thus avoiding the retraction time penalty.
Solution Approach 2:
Instead of moving the receiving panel (on the automobile) to align with the transmitting panel, the patent inverts the approach by moving the transmitting panel (on the ground) to align with the receiving panel. This inversion allows alignment to be achieved without requiring the automobile to move or the receiving panel to retract, thereby reducing charging process time while maintaining power conversion efficiency.
3Productivity
If multiple receiving panels are disposed at the bottom of the automobile to enable optimal wireless charging, then charging efficiency can be improved, but the cost increases
Solution Approach 1:
The patent segments the positioning function by implementing it on the ground-based transmitting panel rather than requiring multiple receiving panels on the automobile. The transmitting panel can be positioned in multiple locations and orientations to achieve optimal alignment with a single receiving panel, thereby maintaining charging efficiency while reducing system cost and 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
The system achieves automatic, rapid, and accurate alignment of wireless charging panels, enhancing charging efficiency and reducing the risk of damage, while lowering costs by automating the alignment process.
Implementation Method 1
matching detection module which comprises a photosensitive sensor chip array
Implementation Method 2
second magnetic sensor chip array, and a second solenoid set
Data Source
AI summary
A wireless charging receiver which includes a wireless receiving panel provided with a receiving coil, and an aligning detection module including a first magnetic sensor chip array and a first solenoid set, is disposed on the lower portion of an electric automobile. A wireless charging transmitter comprises a wireless transmitting panel provided with a transmitting coil, a matching detection module including a photosensitive chip array, a second magnetic sensor chip array and a second solenoid set, and a driving device used for driving the wireless transmitting panel to move, is disposed on the ground of a parking area. Magnetic sensor chips of the first magnetic sensor chip array and solenoids of the first solenoid set are disposed around the receiving coil. The wireless charging transmitter. The wireless transmitting panel is disposed on the driving device and is driven by the driving device to be moved and aligned.