Dual-Mode Wireless Charging Device for Reverse Energy Transfer
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Solution Overview
Problem
Current wireless charging devices can only receive electric energy and cannot output wireless electric energy, limiting user convenience when two devices with wireless charging capabilities are used together.
Innovation Solution
A wireless charging and discharging device that can both receive and provide electric energy, functioning as a wireless charging receiver and cradle, enabling reverse wireless charging functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wireless charging devices are designed to only receive electric energy, then the device structure can be simplified and manufacturing cost reduced, but user convenience deteriorates when two devices with wireless charging capabilities are used together
Solution Approach 1:
The wireless charging device is designed with dual functionality: it can both receive wireless electric energy (charging mode) and transmit wireless electric energy (discharging mode). The device includes a wireless charging receiving unit and a wireless charging transmitting unit, allowing it to serve as either a charging receiver or a charging cradle depending on the operational mode, thereby enabling users to charge one device using another device that supports wireless charging
2Ease of operation
If wireless charging devices can both receive and transmit electric energy, then user convenience is improved, but device complexity increases
Solution Approach 1:
The patent combines the wireless charging receiving unit and the wireless charging transmitting unit into a single integrated device. The receiving unit includes a receiving coil and control circuitry, while the transmitting unit includes a transmitting coil and control circuitry. Both units are merged within the same device housing, allowing the device to switch between charging and discharging modes based on operational requirements, thereby reducing the need for separate charging and power bank devices
3Adaptability or versatility
If wireless charging devices can both receive and transmit electric energy, then functional versatility is improved, but energy management complexity increases
Solution Approach 1:
The device employs dynamic mode switching capability, where the control unit automatically determines whether to operate in charging mode or discharging mode based on real-time conditions. The device includes a switching mechanism that dynamically adjusts the operational state of the wireless charging receiving unit and transmitting unit, allowing seamless transition between receiving electric energy and transmitting electric energy based on battery charge levels and external device requirements
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 users to charge one device using another when both support wireless charging, enhancing user experience by allowing energy transfer between compatible devices.
Implementation Method 1
With wireless electromagnetic induction, wireless charging becomes popular among increasingly more users
Data Source
AI summary
Example charging methods are described. One example method includes determining that a second electronic device is wirelessly connected with a first electronic device. The first electronic device is charged using the second electronic device, in a wireless charging receiving mode of the first electronic device, when the second electronic device is a wireless charging cradle device. Charging current is provided to the second electronic device, in a wireless charging cradle mode of the first electronic device, when the second electronic device is a wireless charging receiving device. The first electronic device can be used both as a wireless charging receiving device to receive electric energy provided by a wireless charging cradle device, and as a wireless charging cradle device to provide charging current to a second electronic device.