Protruding Wireless Charging Unit for Resonant Coupling
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Solution Overview
Problem
Current wireless charging methods for wristwatch-type and wristband-type electronic devices suffer from low charging efficiency due to the narrow angle between the transmitting and receiving resonators, requiring extended charging times and higher power supply.
Innovation Solution
A charging device with a first and second charging unit, where the second unit protrudes at an angle greater than or equal to a predetermined reference angle, allowing for face-to-face alignment with electronic devices to enhance resonant coupling and improve charging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wireless charging is performed with a narrow angle between transmitting and receiving resonators, then the charging device can charge electronic devices in a compact form, but the charging efficiency is low
Solution Approach 1:
The patent introduces a protruding charging unit that extends in a direction different from the main body of the charging device, creating a three-dimensional spatial arrangement. This allows the transmitting resonator in the protruding unit to face the receiving resonator of a wristwatch-type device, increasing the overlapping area of magnetic fields and improving charging efficiency without increasing the overall footprint of the charging device.
2Device complexity
If wireless charging is performed with a narrow angle between transmitting and receiving resonators, then the charging device structure is simplified, but the charging time is extended
Solution Approach 1:
By extending the charging unit in a protruding direction, the patent creates a geometric configuration that enables face-to-face alignment between transmitting and receiving resonators. This spatial arrangement increases the coupling area between magnetic fields, thereby accelerating the charging process and reducing charging time while maintaining a compact overall device structure.
3Area of stationary object
If wireless charging is performed with a narrow angle between transmitting and receiving resonators, then the charging device can maintain a compact size, but higher power supply is required
Solution Approach 1:
The protruding charging unit creates an optimized spatial configuration that maximizes the overlapping area between transmitting and receiving magnetic fields. This geometric arrangement improves magnetic coupling efficiency, allowing the charging device to transfer power more effectively and reduce the total power supply requirement while maintaining a compact form factor.
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
This configuration increases the area of resonant coupling, significantly reducing charging time and power requirements, enabling more efficient wireless charging of multiple electronic devices simultaneously.
Implementation Method 1
As resonant coupling occurs between the coil of the charging device 110 and coils of the first electronic device 120 and the second electronic device 130, and a current of the charging device 110 is delivered by the resonant coupling to the first electronic device 120 and the second electronic device 130
Implementation Method 2
If power is input through an input port 111 of the charging device 110, a current flows in a coil of the charging device 110
Data Source
AI summary
A charging device for charging one or more electronic devices is provided. The charging device includes a charging unit configured to include a first charging unit, and a second charging unit, the second charging unit protruding upward from a surface of the charging unit at an angle greater than or equal to a predetermined reference angle with respect to the surface of the charging unit, wherein, if at least one of the first charging unit and the second charging unit is arranged to face at least one electronic device in a face-to-face manner, the at least one of the first charging unit and the second charging unit supplies a wireless power to the at least one electronic device.