Magnetic Haptic Module With Shielded Polarity for Dynamic Force Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing haptic devices are complex and limited in miniaturization, and they can only provide tactile sensation, failing to deliver dynamic force feedback effectively.
Innovation Solution
A haptic module with a magnet arrangement frame, shielding screens, and a controller that controls linear movement to dynamically provide tactile sensation and force feedback by alternately shielding magnetic polarities, allowing for various and dynamic force feedback and tactile sensations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromagnetic devices and blades are mounted on the lower surface of the coil to provide tactile sensation, then tactile sensation function is achieved, but the occupying area becomes wide and miniaturization is limited
Solution Approach 1:
The patent merges the tactile sensation generation function and force feedback function into a single integrated haptic module. The coil structure serves dual purposes: generating magnetic fields for force feedback and interacting with magnets to produce tactile sensations. This consolidation eliminates the need for separate electromagnetic devices and blades mounted on the coil, significantly reducing the occupying area while maintaining both tactile sensation and force feedback capabilities.
Solution Approach 2:
The haptic module is designed as a multi-functional component that simultaneously provides force feedback through coil-magnet interaction and tactile sensation through the same magnetic field mechanism. The shielding screen structure also serves multiple functions: it shields magnetic fields, provides structural support, and enables the tactile sensation effect. This multi-functionality allows the module to achieve both tactile sensation and force feedback within a compact form factor.
2Reliability
If complex components are used to achieve tactile sensation, then tactile sensation is provided, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into fewer components. The coil structure serves both as an electromagnetic actuator for force feedback and as part of the tactile sensation generation system. The shielding screen is integrated into the magnet arrangement frame, eliminating separate shielding components. This merging reduces the number of parts and simplifies the overall device structure while maintaining tactile sensation capability.
Solution Approach 2:
Each component in the haptic module is designed to perform multiple functions. The coil generates magnetic fields for both force feedback and tactile sensation. The magnets serve dual purposes in force generation and tactile effect creation. The shielding screen provides magnetic shielding, structural support, and tactile sensation enhancement. This multi-functionality reduces component complexity compared to dedicated single-function components.
3Reliability
If only tactile sensation function is implemented, then tactile feedback is provided, but dynamic force feedback cannot be provided to the user
Solution Approach 1:
The haptic module is designed as a universal device that can provide both tactile sensation and dynamic force feedback through the same core mechanism. By controlling the coil current, the system can generate magnetic fields that produce both subtle tactile vibrations and stronger force feedback effects. This multi-functionality allows the module to adapt to different application requirements, providing appropriate haptic feedback for various user interactions with the touch panel.
Solution Approach 2:
The haptic module implements dynamic control capabilities through the coil-magnet interaction system. The coil can be controlled to generate time-varying magnetic fields that produce dynamic force feedback effects. The shielding screens can be positioned to modulate the magnetic field distribution dynamically, enabling both static and dynamic haptic effects. This dynamic control allows the system to provide varied force feedback responses to different user inputs.
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
The solution reduces complexity and achieves miniaturization, enabling the haptic module to provide dynamic force feedback and tactile sensations, enhancing user experience in electronic devices like touch panels.
Implementation Method 1
a haptic module providing force feedback and tactile sensation against force applied to a touch panel by a user through adjustment of a magnetic force
Data Source
AI summary
A haptic module using a magnetic force and an electronic apparatuses having a magnet arrangement frame arranged so that polarities of adjacent magnets are alternate; shielding screens positioned on uppers of each of frame elements of the magnet arrangement frame and formed in a window arrangement to shield any one polarity of the frame elements; linear movement apparatus fixed to outside portions of the shielding screens to move the shielding screens in a longitudinal direction of the frame element; a magnet frame positioned on an upper of the magnet arrangement frame through the shielding screen and taking on the same polarity on the whole of one surface thereof; and a controller that controls the linear movement apparatus to provide various and dynamic force feedback and tactile sensation to a user, as well as reduce complexity of a constitution as compared to a related art and further accomplish miniaturization.