Back Cover Mobile Power Supply for Simultaneous Wireless Charging
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Solution Overview
Problem
Current back cover mobile power supplies for intelligent terminals cannot be charged simultaneously with the terminals, resulting in low charging efficiency.
Innovation Solution
A wireless charging method and system that uses a back cover mobile power supply, where a wireless charger generates an electromagnetic field, allowing the intelligent terminal's main battery and the power core of the back cover mobile power supply to be charged simultaneously through a power switching module, enabling simultaneous charging by controlling the charging state and power supply modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the back cover mobile power supply charges the intelligent terminal using traditional wired charging, then the terminal can be charged, but the power supply and terminal cannot be charged simultaneously resulting in low charging efficiency
Solution Approach 1:
The patent merges the charging functions by enabling both the back cover mobile power supply and the intelligent terminal to be charged simultaneously through wireless charging technology. The wireless charger transmits electromagnetic fields that are inductively coupled to both the terminal's wireless charging device and the power supply's wireless charging module, allowing parallel charging operations without sequential dependency.
Solution Approach 2:
The patent replaces the traditional mechanical wired charging interface with wireless electromagnetic induction charging. By using electromagnetic fields instead of physical cable connections, the system enables simultaneous charging of multiple devices without the limitations of wired charging interfaces, thereby improving charging efficiency and eliminating the need for cable insertion/removal operations.
2Productivity
If wireless charging technology is implemented in the back cover mobile power supply, then simultaneous charging is enabled, but the device complexity increases
Solution Approach 1:
The patent implements multi-functionality by integrating both wireless charging reception and wireless charging transmission capabilities into the back cover mobile power supply. The power supply can simultaneously receive wireless power and transmit it to the terminal, or charge itself along with the terminal, making the system versatile and adaptable to different charging scenarios without requiring separate dedicated devices.
3Device complexity
If the back cover mobile power supply is used without wireless charging capability, then the structure remains simple, but charging efficiency is reduced due to inability to charge simultaneously
Solution Approach 1:
The patent introduces wireless electromagnetic field interaction as an intermediary mechanism between the power supply and the terminal. This intermediary wireless charging interface enables efficient energy transfer without direct physical connection, allowing simultaneous charging operations while maintaining a relatively simple overall system architecture through standardized wireless charging protocols and modules.
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 enhances charging efficiency by allowing both the intelligent terminal and the back cover mobile power supply to be charged at the same time, improving overall charging performance while maintaining existing functions and ensuring safety with multiple charging security levels.
Implementation Method 1
powering on a wireless charger, such that an induction coil is powered and generates an electromagnetic field; inducting the electromagnetic field and generating a current to a wireless charging device
Data Source
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AI summary
The present disclosure discloses a wireless charging device, system, and method based on a back cover mobile power supply. The wireless charging system includes a wireless charger, a back cover mobile power supply, and an intelligent terminal. The intelligent terminal is provided with a main battery and a wireless charging device. A built-in induction coil is powered and generates an electromagnetic field when a wireless charger is powered on. The back cover mobile power supply inducts the electromagnetic field and generates a current to the wireless charging device. The intelligent terminal and the back cover mobile power supply are controlled to enter a charging state, and a charging current is transmitted to the main battery of the intelligent terminal and the back cover mobile power supply, respectively, so as to perform charging, when the current is detected by the wireless charging device. As a result, when performing wireless charging, the intelligent terminal and the back cover mobile power supply can be charged at the same time so as to improve the charging efficiency, which resolves the problem of low charging efficiency since the back cover mobile power supply and the intelligent terminal of the prior art cannot be charged at the same time.