Wireless Charging Shield for Multi-Protocol Interference
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Solution Overview
Problem
Wireless charging devices are limited to supporting specific protocols, making them incompatible with electronic devices using different protocols, which complicates user experience and portability as multiple devices are needed for various charging standards.
Innovation Solution
A wireless charging device is designed with two charging units, one supporting the A4WP protocol and the other the Qi protocol, with a shield to prevent magnetic field interference between them, allowing compatibility with both protocols in a single device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless charging device supports multiple wireless charging protocols through multiple charging units, then the adaptability is improved, but the magnetic field interference between charging units worsens the charging stability
Solution Approach 1:
A magnetic shield is introduced as an intermediary component between the first charging unit and the second charging unit. The shield absorbs or blocks the magnetic field generated by one charging unit from interfering with the other, thereby resolving the magnetic field interference issue while maintaining multi-protocol support capability
2Device complexity
If a wireless charging device only supports a specific wireless charging protocol, then the device complexity is reduced, but the adaptability to different electronic devices worsens
Solution Approach 1:
The wireless charging device is designed with both a first charging unit supporting a first wireless charging protocol and a second charging unit supporting a second wireless charging protocol, enabling a single device to serve multiple charging standards and different electronic device types, thereby achieving multi-functionality
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 solution enables a single wireless charging device to charge electronic devices supporting either protocol, enhancing user experience and portability by eliminating the need for multiple devices.
Implementation Method 1
a shield arranged between the first and second charging units, wherein the shield absorbs a magnetic field generated by at least one of the first charging unit and the second charging unit
Implementation Method 2
the wireless charging device generates a magnetic field through an output coil while the external electronic device induces a magnetic field through a receiving coil
Implementation Method 3
the external electronic device induces a magnetic field through a receiving coil, so as to generate a charging current
Data Source
AI summary
The present disclosure describes embodiments of a wireless charging device including a first charging unit that charges a first electronic device according to a first wireless charging protocol, a second charging unit that charges a second electronic device according to a second wireless charging protocol. The wireless charging device further includes a shield arranged between the first and second charging units, wherein the shield absorbs a magnetic field generated by at least one of the first charging unit and the second charging unit.