Rotating Repeater Wireless Charging for Multi-Angle Terminal Use
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Solution Overview
Problem
Existing wireless charging devices require the user terminal to be planarly placed for effective charging, limiting user interaction and making it difficult to view the screen during charging, especially when the device is not positioned parallel to the charging device.
Innovation Solution
A wireless charging device with a repeater that rotates and moves horizontally and vertically to adjust the magnetic field direction, supporting the user terminal in various orientations while maintaining magnetic field intensity and allowing charging without additional recognition operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the user terminal is planarly placed on the wireless charging device to ensure effective magnetic coupling, then the charging efficiency is improved, but the user cannot easily view the screen or interact with the terminal during charging
Solution Approach 1:
The repeater is designed to be rotatable both horizontally and vertically, allowing it to dynamically adjust its orientation to maintain parallel alignment with the reception coil regardless of the terminal's placement angle. This dynamic adjustment capability enables the system to maintain high charging efficiency while accommodating various user interaction positions.
Solution Approach 2:
The repeater acts as an intermediary component between the transmission coil and the reception coil. It receives magnetic flux from the transmission coil and redirects it toward the reception coil, enabling effective power transfer even when the terminal is positioned at various angles relative to the charging device.
2Adaptability or versatility
If the repeater is made rotatable to support terminals in various directions, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The repeater incorporates horizontal and vertical rotation capabilities, transforming it from a static component to a dynamic one that can adapt to various terminal orientations. This dynamic design enables the system to handle diverse charging scenarios without requiring multiple separate charging devices.
Solution Approach 2:
The rotatable repeater serves multiple functions: it maintains magnetic coupling efficiency, supports various terminal orientations, and enables flexible user interaction. This multi-functionality reduces the need for additional specialized components or devices.
3Power
If the transmission coil and reception coil are positioned to face each other in parallel for high magnetic field intensity, then the power transmission efficiency is improved, but the terminal must be held in a fixed position
Solution Approach 1:
The repeater serves as a magnetic flux intermediary that decouples the positional relationship between the transmission coil and reception coil. It captures flux from the transmission coil and redirects it to the reception coil, allowing the terminal to be held at various angles while maintaining efficient power transfer.
Solution Approach 2:
The repeater's rotatable design allows it to dynamically adjust its orientation to maintain optimal magnetic coupling with the reception coil, regardless of how the user positions the terminal. This ensures high power transmission efficiency is maintained across various terminal orientations.
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 wireless charging in different directions and angles, allowing users to interact with the terminal during charging and maintaining efficient power transmission regardless of the terminal's position, reducing heat generation and ensuring quick charging.
Implementation Method 1
As current is supplied to the transmission coil, the transmission coil generates a magnetic field, and the magnetic field generated by the transmission coil induces current in the reception coil.
Implementation Method 2
a repeater capable of rotating horizontally and vertically, and support a user terminal in parallel with the repeater, to wirelessly transmit power in different directions and at different angles
Data Source
AI summary
Discussed is a wireless charging device that changes a direction of a magnetic field generated by a transmission coil, through a repeater capable of rotating in a plane, and supports a user terminal in parallel with the repeater, to wirelessly transmit power in various directions and at various angles. The wireless charging device includes a power transmitting module including a plurality of transmission coils arranged side by side, therein, a terminal supporting module including a repeater therein and disposed at a slant with respect to an upper surface of the power transmitting module on the upper surface of the power transmitting module, a moving module to move the terminal supporting module along a direction in which the transmission coils are arranged, and a controller to supply a voltage to any one of the plurality of transmission coils depending on a position of the moving module.