Electronic Switch Force Feedback via Magnetic Repulsion
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Solution Overview
Problem
Conventional touch pens cannot control the hardness of brushwork and transform it into corresponding writing traces, limiting their functionality and market diversity.
Innovation Solution
An electronic switch with force feedback function, comprising a base, actuating component, magnetic field generating module, covering component, resilient component, and pressure detecting unit, which provides adjustable inverse feedback force to simulate pressure retardation and brushwork variation, using a magnetic repulsive force generated by an electromagnetic or permanent magnet unit, and a pressure detecting unit to output control signals for varying writing traces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional touch pen technology is used, then basic touch detection function is provided, but the ability to control brushwork hardness and provide force feedback is lost
Solution Approach 1:
The patent replaces complex mechanical force feedback mechanisms with a magnetic field generating module that uses electromagnetic fields to provide adjustable inverse feedback force. This substitution maintains the force feedback function while reducing mechanical complexity and enabling electronic control of brushwork hardness.
Solution Approach 2:
The patent enables control of brushwork hardness by changing the magnetic field strength parameter through adjustable input current to the electromagnetic unit. This parameter change allows dynamic adjustment of the inverse feedback force, providing variable brushwork control without mechanical complexity.
2Adaptability or versatility
If magnetic field generating module is added to provide force feedback, then brushwork control capability is improved, but device complexity increases
Solution Approach 1:
The magnetic field generating module serves multiple functions: it provides force feedback through inverse feedback force, enables brushwork hardness control through adjustable magnetic field strength, and works with the pressure detecting unit to detect external force values. This multi-functionality reduces the need for separate components.
Solution Approach 2:
The magnetic field generating module acts as an intermediary between the user's physical input and the digital output, translating applied pressure into controllable brushwork parameters through the magnetic field interaction with the magnetic unit, enabling precise control without direct mechanical linkages.
3Measurement precision
If pressure detecting unit is added to detect external force, then brushwork hardness control is improved, but manufacturing complexity increases
Solution Approach 1:
The pressure detecting unit utilizes the existing magnetic field interaction to detect external force values. The magnetic field generating module and magnetic unit create a self-contained detection system that measures applied pressure through changes in magnetic field characteristics, eliminating the need for separate complex pressure sensing 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
Enhances the diversity and market competition of products by allowing adjustable force feedback, simulating keyswitch pressure retardation and touch pen brushwork control, improving user experience through variable writing traces and force feedback.
Implementation Method 1
the magnetic field generating module is disposed on the base and adapted to provide a magnetic repulsive force for the magnetic unit
Implementation Method 2
The magnetic field generating module utilizes an electromagnetic unit to generate the magnetic repulsive force corresponding to the magnetic unit
Implementation Method 3
The pressure detecting unit is an optical detection module, an electromagnetic induction module or a capacitance detection module
Implementation Method 4
The pressure detecting unit is an optical detection module, an electromagnetic induction module or a capacitance detection module
Data Source
AI summary
An electronic switch with force feedback function includes a base, an actuating component and a. The actuating component is movably connected to the base, and includes a. The magnetic field generating module is disposed on the base, and provides a magnetic repulsive force to the magnetic unit for force feedback while the actuating component moves close to the base.