Multi-mode Wireless Charging Coil with Segmented Windings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless charging systems lack an optimal design and flexibility to accommodate different charging modes, particularly for portable electronic devices like cellular phones, where charging efficiency and mode selection are compromised due to inadequate coil design and positioning.
Innovation Solution
A wireless charging system with multiple coils or a single coil having different charging modes, where the status of the coil is detected to select appropriate charging modes based on charging conditions, allowing for selection of specific coils or lead wires for optimal power transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single coil design is used for wireless charging, then device complexity is reduced, but charging efficiency and adaptability to different modes deteriorate
Solution Approach 1:
The single coil is divided into multiple independent winding sections, each capable of operating in different charging modes. The coil includes a first winding section for magnetic induction mode and a second winding section for magnetic resonance mode, allowing mode selection without multiple separate coils.
Solution Approach 2:
The single coil structure is designed to perform multiple functions by incorporating different winding sections that can operate in different charging modes. The controller selectively activates appropriate winding sections based on the required charging mode, making one coil structure universal for both magnetic induction and magnetic resonance charging.
2Adaptability or versatility
If multiple separate coils are provided for different charging modes, then charging mode adaptability is improved, but device complexity and volume increase
Solution Approach 1:
Multiple winding sections that would traditionally require separate coils are merged into a single integrated coil structure. The first and second winding sections are positioned at different locations within the same coil assembly, enabling both magnetic induction and magnetic resonance modes while reducing overall device complexity and volume.
3Ease of manufacture
If coil positioning is not optimized, then manufacturing ease is improved, but charging efficiency and position deviation are worsened
Solution Approach 1:
Different winding sections are positioned at specific locations within the coil structure optimized for their respective charging modes. The first winding section is positioned for optimal magnetic induction performance while the second winding section is positioned for optimal magnetic resonance performance, ensuring high charging efficiency for each mode.
Solution Approach 2:
The controller pre-configures the appropriate winding sections based on the detected charging mode before actual power transmission begins. This preliminary selection and configuration of coil sections ensures optimal charging efficiency from the start of the charging process.
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 the selection of an appropriate charging mode for optimal conditions, improving charging efficiency and reducing deviations in charging distance, thereby enhancing the adaptability and performance of wireless charging systems for various devices.
Implementation Method 1
a receiver for the wireless charging system using non-contact magnetic induction
Implementation Method 2
The non-contact charging mode refers to a mode of providing an electric current of a charging body, namely energy to a storage battery of a portable electronic device using inductive coupling by forming a first circuit operated by a high frequency in the charging body and forming a second circuit in a battery
Data Source
AI summary
Provided is a wireless charging system having different wireless modes, the system comprising: a method of providing a coil having different charging modes in one set, which is performed by providing separate coils or providing a lead wire in the middle of one coil, when the coil having at least two different charging modes is provided in the one set in a receiver for the wireless charging system using non-contact magnetic induction, wherein when one charging mode is selected for one coil set, a status value of the coil for transmitting and receiving wireless power energy is detected, thereby enabling the one charging mode to be selected, and different charging modes is mounted in one wireless charging system so that a charging mode appropriate for optimum conditions can be selected according to states and charging conditions wireless power transmitting and receiving devices.