Wireless Charging Radius Adjustment for Multi-Device Power Transfer
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Solution Overview
Problem
Conventional methods for charging portable devices, such as wired power adapters and portable power sources, are limited by portability and power capacity, and fail in outdoor or indoor power outage scenarios, necessitating a more efficient and environment-tolerant charging solution.
Innovation Solution
A wireless electric charging system that allows a first device to change its charging radius based on an external power source, enabling it to charge multiple devices within a larger or smaller area, using electromagnetic fields and inductive coupling for energy transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired power source adapter is used to charge portable device, then charging reliability is improved, but portability is reduced
Solution Approach 1:
The patent replaces the mechanical connection system (wired power adapter with physical cable) with an electromagnetic field-based wireless charging system. The transmitting device generates an electromagnetic field that inductively couples with the receiving device to transfer power, eliminating the need for physical connectors and cables, thus improving portability while maintaining charging reliability through controlled electromagnetic energy transfer
2Weight of moving object
If portable power source is used to charge portable device, then portability is improved, but power capacity is reduced
Solution Approach 1:
The transmitting device is designed with multi-functionality to serve both as a portable power source and as a wireless charging station. It can operate in different modes: when connected to external power, it provides high-power wireless charging; when using internal battery, it provides portable charging capability. This universal design allows the system to adapt to different power capacity requirements while maintaining portability
Solution Approach 2:
The system dynamically adjusts its operating mode and power output based on available power sources. The transmitting device can switch between battery-powered portable mode and externally-powered high-capacity mode, optimizing the balance between portability and power capacity according to real-time conditions
3Productivity
If wireless charging with fixed power source is used, then charging capability is improved, but adaptability to different environments is reduced
Solution Approach 1:
The system employs dynamic environmental adaptation by automatically adjusting its charging parameters and power source selection based on detected conditions. The transmitting device can identify whether it is in outdoor or indoor settings, detect available power sources, and modify its operating mode accordingly, thereby maintaining high charging capability across diverse environments
Solution Approach 2:
The system changes operational parameters such as power output level, charging radius, and power source selection based on environmental conditions. When external power is available, it increases power output for faster charging; when using internal battery, it adjusts to conserve power, thus adapting charging capability to environmental constraints
4Adaptability or versatility
If charging radius is increased to charge multiple devices, then versatility is improved, but power consumption is increased
Solution Approach 1:
The system implements partial action by enabling multi-device charging only when necessary and when sufficient power is available. It can selectively charge one or multiple devices based on power availability and user needs, avoiding unnecessary power consumption while maintaining the capability for versatile multi-device charging when conditions permit
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
The system provides easy, user-friendly, and environment-tolerant charging, eliminating the need for physical connections and enhancing portability by increasing the number of devices that can be charged simultaneously within a specific area.
Implementation Method 1
Wireless charging, also known as non-contact charging, non-contact power transmission, and inductive charging, is a technique that involves transmitting energy between two devices by an electromagnetic field
Implementation Method 2
using electromagnetic fields and inductive coupling for energy transfer
Data Source
AI summary
A mechanism is provided for a first device to wirelessly charge a second device. When in a first charging mode, the first device has a first chargeable radius as a charging radius thereof. An external power source is provided to the first device. In response to the external power source providing power to the first device, the first device changes from the first charging mode to a second charging mode. In response to the first device changing to the second charging mode, the charging radius of the first device changes from the first chargeable radius to a second chargeable radius.