Stylus Magnetic Attraction Assembly Using Conductive Structure
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Solution Overview
Problem
Existing styluses require multiple magnets for magnetic attraction, increasing manufacturing costs, weight, and occupying space, while also affecting antenna efficiency due to the magnetic field.
Innovation Solution
A stylus with a single magnet and a magnetic conductive structure that can be magnetized, allowing for multi-point magnetic attraction at predetermined positions and angles, reducing the need for multiple magnets and maintaining antenna efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple magnets are disposed in a stylus to enable multi-point magnetic attraction, then the stylus can be positioned at predetermined positions and angles, but the manufacturing cost, weight, and space occupation increase
Solution Approach 1:
The magnetic conductive structure is divided into multiple separate portions (first magnetic conductive portion, second magnetic conductive portion, third magnetic conductive portion) distributed at different locations within the stylus. Each portion independently contributes to magnetic attraction at specific positions, enabling multi-point magnetic attraction without requiring multiple magnets. This segmentation allows the magnetic field to be distributed across multiple points while using a single magnet source.
Solution Approach 2:
A magnetic conductive structure is introduced as an intermediary between the single magnet and the electronic device. This structure includes multiple magnetic conductive portions that are magnetically coupled to the magnet and extend to different locations, effectively transferring and distributing the magnetic force from one magnet to multiple attraction points. The magnetic conductive structure acts as a mediator that multiplies the magnetic attraction capability without adding multiple magnets.
2Adaptability or versatility
If multiple magnets are disposed in a stylus, then multi-point magnetic attraction is achieved, but the antenna efficiency of the charging coil decreases due to magnetic field interference
Solution Approach 1:
The magnetic conductive portions are strategically positioned and designed to extract and concentrate magnetic field lines toward the side surface of the stylus where magnetic attraction occurs. By shaping the magnetic conductive structure to extend toward the side surface, the patent directs magnetic flux away from the charging coil area, reducing magnetic interference with the antenna while maintaining effective magnetic attraction at the desired locations.
Solution Approach 2:
The magnetic conductive structure exhibits local quality variations with different portions having different shapes, sizes, and positions optimized for specific functions. The first, second, and third magnetic conductive portions are differently configured to create localized magnetic attraction zones at specific positions and angles, while the charging coil area maintains low magnetic field intensity. This localized optimization allows strong magnetic attraction where needed while preserving antenna efficiency in other regions.
3Adaptability or versatility
If multiple magnets are disposed in a stylus, then multi-point magnetic attraction is achieved, but the manufacturing cost increases
Solution Approach 1:
The patent merges the functions of multiple magnets into a single magnet by introducing a magnetic conductive structure that distributes magnetic force to multiple locations. Instead of assembling multiple separate magnet components (which would increase manufacturing complexity and cost), the invention uses one magnet combined with a magnetically conductive structure that is integrated into the stylus body, simplifying the manufacturing process while achieving multi-point magnetic attraction.
Solution Approach 2:
The magnetic conductive structure serves multiple functions simultaneously: it extends the magnetic field to multiple attraction points, shapes the magnetic field distribution, provides structural support, and reduces magnetic interference with the charging coil. This multi-functionality eliminates the need for separate components for each function, reducing overall part count and manufacturing cost while maintaining the multi-point magnetic attraction capability.
4Adaptability or versatility
If multiple magnets are disposed in a stylus, then multi-point magnetic attraction is achieved, but the space inside the stylus is occupied
Solution Approach 1:
The magnetic conductive structure extends in multiple spatial dimensions from the single magnet, with portions extending in different directions and orientations. This dimensional distribution allows the magnetic influence to reach multiple points in three-dimensional space without requiring multiple magnet volumes. The magnetic field is projected along dimensional vectors rather than requiring physical magnet placement at each point, effectively utilizing spatial dimensions to achieve multi-point attraction with minimal volume occupation.
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 magnetic attraction of electronic devices at specific positions and angles with reduced manufacturing costs, weight, and space occupation, while preventing antenna efficiency degradation.
Implementation Method 1
The magnetic conductive structure is disposed in the pen body and is connected to the magnet to be magnetized by the magnet
Implementation Method 2
The magnetic attraction assembly is adapted to magnetically attract an electronic device at two of the first position, the second position and the third position
Data Source
AI summary
A stylus including a pen body and a magnetic attraction assembly is provided. The magnetic attraction assembly includes a magnet and a magnetic conductive structure. The magnet is disposed at a first position in the pen body. The magnetic conductive structure is disposed in the pen body and connected to the magnet to be magnetized by the magnet, and two end portions of the magnetic conductive structure are respectively located at a second position and a third position in the pen body. The magnetic attraction assembly is adapted to magnetically attract an electronic device at two of the first position, the second position and the third position.