Mouse Wheel Magnetic Actuation for Wear-Free Tactile Feedback
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Solution Overview
Problem
Conventional mouse wheel modules using contact-type interference methods struggle with immediate mode switching and wear issues, leading to reduced tactile feedback over time.
Innovation Solution
A mouse device with a wheel control mechanism incorporating a magnetic force module and rotating speed detector, allowing for non-contact mode switching between tactile and non-tactile wheel rotation modes by adjusting the magnetic field direction, reducing wear and enhancing user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contact-type interference method is used to generate tactile feel, then tactile feedback is provided, but wear occurs on the wheel module over time
Solution Approach 1:
The patent replaces the contact-type mechanical interference method with a magnetic field-based interaction system. The electromagnet assembly generates magnetic fields that interact with the metal ratchet to provide tactile feedback without physical contact, thereby eliminating wear on the wheel module while maintaining the tactile feel function.
2Speed
If contact-type interference method is used, then tactile feel is generated, but mode switching is not immediate
Solution Approach 1:
The patent uses magnetic field interaction instead of mechanical contact to enable immediate mode switching. The electromagnet assembly can be controlled to switch between different magnetic field states (attracting and repelling), allowing rapid transition between tactile and non-tactile modes without the delays inherent in mechanical contact systems.
3Ease of operation
If contact-type interference method is used, then wheel rotation generates tactile feel, but the method wears out the wheel module after long use
Solution Approach 1:
The patent substitutes mechanical contact with magnetic field interaction to maintain tactile feedback throughout the service life of the wheel module. The electromagnet assembly interacts with the metal ratchet through magnetic fields, eliminating the wear that would otherwise occur with prolonged mechanical contact and extending the operational lifespan.
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 quick mode switching and reduced wear on the wheel module, providing consistent tactile feedback and improved durability compared to traditional contact-type designs.
Implementation Method 1
The electromagnet assembly is arranged between the second end of the first magnetic conductor and the second end of the second magnetic conductor
Implementation Method 2
magnetic attractive forces generated at the first end of the first magnetic conductor and the first end of the second magnetic conductor attract the metal ratchet
Data Source
AI summary
A mouse device includes a wheel control mechanism and a control unit. The control unit is electrically connected with a magnetic force module and a rotating speed detector of the wheel control mechanism. Under control of the control unit, a first direction current or a second direction current is selectively provided to drive the magnetic force module. The flowing directions of the first direction current and the second direction current are opposite. Consequently, the rotating mode of the wheel control mechanism can be switched between different modes.