Stylus Charging Coil Layout for 360° Blind Insertion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users face difficulties in quickly charging active capacitive styluses as they require alignment of wireless charging coils, leading to multiple attempts and inefficiency.
Innovation Solution
An electronic device component featuring a wireless keyboard with a circular charging coil in its accommodating portion and a corresponding circular coil in the stylus, allowing for 360° blind insertion charging, eliminating the need for coil alignment during charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional linear wireless charging coils are used, then charging function is achieved, but multiple alignment attempts are required reducing charging speed
Solution Approach 1:
The patent applies circular coil structures instead of traditional linear coils. The first circular coil is disposed on the inner wall of the accommodating portion, and the second circular coil is disposed in the stylus. This circular configuration enables 360° blind insertion charging, eliminating the need for alignment operations and significantly improving charging speed and ease of use.
2Productivity
If wireless charging coil alignment is required, then charging efficiency is improved, but user time and complexity increase
Solution Approach 1:
The circular coil design allows the stylus to be charged at any rotational position within the accommodating portion. The first circular coil on the inner wall and the second circular coil in the stylus create overlapping magnetic fields that maintain coupling regardless of insertion angle, eliminating alignment time while preserving charging efficiency.
Solution Approach 2:
The circular coil configuration provides multi-directional charging capability. The accommodating portion can charge the stylus at any rotational position, making the charging function universal and independent of insertion orientation, thus eliminating the time loss associated with alignment operations.
3Device complexity
If linear charging coils are used, then simple structure is maintained, but alignment mechanism adds device complexity
Solution Approach 1:
The circular coil structure inherently provides 360° charging capability without adding complex alignment mechanisms. The first circular coil disposed on the inner wall and the second circular coil in the stylus create a symmetric magnetic field distribution that enables blind insertion, maintaining structural simplicity while dramatically improving ease of operation.
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 rapid and convenient charging of the stylus by ensuring continuous coupling of charging coils, facilitating portable storage and use.
Implementation Method 1
a first charging coil is disposed on an inner wall of the accommodating portion, and a second charging coil corresponding to the first charging coil is disposed in the stylus
Data Source
AI summary
Embodiments of this application provide an electronic device component. A first charging coil and a second charging coil are respectively disposed in a wireless keyboard and a stylus. At least one of the first charging coil and the second charging coil is a circle coil, and the circle coil is disposed around circumference of an accommodating portion or the stylus. The stylus can be charged when the stylus is blindly inserted into the accommodating portion, to resolve a prior-art problem that a user cannot quickly charge the stylus because the charging coils need to be aligned for a plurality of times when the stylus is charged.