Circular Charging Coil Layout for Blind Stylus Insertion
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Solution Overview
Problem
Users face difficulties in quickly charging active capacitive styluses as they require alignment of wireless charging coils, leading to multiple alignment attempts.
Innovation Solution
An electronic device component, specifically a wireless keyboard with an accommodating portion containing a circle-shaped charging coil, allows for 360° blind insertion charging of a stylus equipped with a corresponding circle coil, eliminating the need for coil alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional linear wireless charging coils are used, then charging function is provided, but multiple alignment attempts are required and charging speed is slow
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 between coils and allowing the stylus to be charged immediately upon insertion.
2Productivity
If wireless charging coils require alignment, then charging efficiency is improved, but user convenience deteriorates due to multiple alignment attempts
Solution Approach 1:
The circular coil configuration 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 enable charging regardless of the stylus's rotational orientation, thus achieving both high charging efficiency and user convenience.
3Adaptability or versatility
If traditional charging coil configuration is used, then device structure is simple, but charging functionality is limited and requires precise alignment
Solution Approach 1:
The circular coil design inherently provides 360° adaptability. The first circular coil disposed on the inner wall of the accommodating portion and the second circular coil in the stylus create a configuration where the magnetic fields overlap across all rotational positions, enabling the system to adapt to any insertion orientation without requiring complex alignment mechanisms.
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 efficient and rapid charging of the stylus without the need for manual alignment of charging coils, enhancing user convenience and charging speed.
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.