Wireless Charging Repeater Alignment for Angled Terminal Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless charging devices require user terminals to be mounted flat, limiting usability and making it difficult to view the screen when charging, and result in a decrease in magnetic field strength when mounted at angles.
Innovation Solution
A wireless charging device with a rotatable and movable repeater that changes the direction of the magnetic field, allowing user terminals to be mounted at various angles and orientations while maintaining magnetic field strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmitting coil and receiving coil are disposed to face each other in parallel to efficiently transmit power, then the magnetic field strength is maximized, but the user terminal must always be mounted flat which severely limits usability
Solution Approach 1:
A repeater coil is introduced as an intermediary component between the transmitting coil and receiving coil. The repeater changes the direction of the magnetic field generated by the transmitting coil, enabling the receiving coil to receive magnetic flux even when the user terminal is mounted at various angles. This mediator resolves the contradiction by decoupling the orientation requirements of the transmitting and receiving coils.
Solution Approach 2:
The system transitions from a single-plane magnetic field configuration to a three-dimensional magnetic field distribution by introducing the repeater coil at a different spatial orientation. This dimensional change allows the magnetic field to effectively reach the receiving coil regardless of the terminal's mounting angle, thereby improving usability while maintaining power transmission efficiency.
2Reliability
If the user terminal is mounted flat on the top of the wireless charging device to ensure proper magnetic coupling, then power transmission efficiency is maintained, but it becomes difficult to view the screen output when the user is in front, rear or side of the device
Solution Approach 1:
The repeater coil serves as a magnetic field mediator that redirects magnetic flux to accommodate various terminal orientations. This allows the terminal to be mounted at angles that provide good screen visibility while ensuring the receiving coil still receives sufficient magnetic coupling for efficient power transmission.
3Ease of operation
If the user terminal is mounted at an angle to improve usability and screen visibility, then viewing flexibility is improved, but the strength of the magnetic field provided to the receiving coil decreases
Solution Approach 1:
The repeater coil acts as a magnetic field redirector that compensates for the angular misalignment between the transmitting coil and receiving coil. When the terminal is mounted at an angle, the repeater changes the direction of the magnetic field to ensure the receiving coil still receives strong magnetic flux, thereby maintaining power transmission efficiency despite the angled mounting.
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 at various angles and orientations, allowing users to view the screen during charging and maintaining efficient power transmission without heat generation.
Implementation Method 1
a magnetic field may be generated and the magnetic field generated in the transmitting coil may induce a current in a receiving coil
Implementation Method 2
the magnetic field generated in the transmitting coil may induce a current in a receiving coil
Data Source
AI summary
Discussed is a wireless charging device which can change the direction of a magnetic field, generated in a transmission coil, through a vertically and horizontally rotatable repeater, and can hold a user terminal in parallel with the repeater, thereby transmitting wireless power in various directions and at various angles. The wireless charging device includes a case, a flat plate core disposed in the case, multiple transmission coils arranged parallel to each other on the flat plate core, a terminal holder including a repeater therein and disposed on the top surface of the case while sloping with respect to the top surface of the case, and a moving member for moving the terminal holder in the direction in which the plurality of transmission coils are arranged.