Haptic Reactive Switch Horizontal Vibration Feedback
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Solution Overview
Problem
Conventional haptic reactive electrical switches face issues with weak vibration force transmission and vibration deviation, particularly in large-sized panels, leading to dead zones and reduced response speed due to the vertical vibration mechanism.
Innovation Solution
A haptic reactive electrical switch design that incorporates a movable floating panel vibrating horizontally, utilizing a vibration transmission plate and damping members to provide uniform vibration feedback across the panel, minimizing loss and interference, and featuring a load detection unit to control the actuator for non-contact load input conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the means of vibration feedback is mounted on the touch input unit to provide tactile feedback, then the user can recognize touch input through vibration feedback, but the vibration force transmitted to the user's finger is weak and vibration deviation occurs depending on touch position
Solution Approach 1:
The patent changes the vibration direction from vertical (perpendicular to panel) to horizontal (parallel to panel surface). The actuator generates horizontal vibrations that transmit through the touch input unit to the user's finger, eliminating the weak transmission and dead zone problems associated with vertical vibrations while maintaining reliable tactile feedback recognition.
Solution Approach 2:
Instead of mounting the vibration feedback means directly on the touch input unit as conventional designs do, the patent inverts the approach by having the actuator generate vibrations that are transmitted through the panel structure itself. The holder supports the touch input unit and transmits horizontal vibrations from the actuator, reversing the conventional mounting relationship to achieve uniform vibration distribution.
2Force
If a large capacity means of vibration feedback is applied to increase vibration force, then the vibration force increases, but the size of the electrical switch increases and response speed decreases
Solution Approach 1:
The patent replaces the conventional vertical vibration mechanism with a horizontal vibration transmission system. The actuator generates horizontal vibrations that are efficiently transmitted through the holder and touch input unit structure, achieving strong vibration force transmission without requiring a large capacity actuator, thus maintaining fast response speed.
Solution Approach 2:
The patent changes the vibration direction parameter from vertical to horizontal, which fundamentally alters how vibration force is transmitted to the user's finger. This parameter change enables efficient force transmission through the panel structure without increasing actuator size, thereby maintaining fast response speed while providing strong tactile feedback.
3Ease of operation
If the touch input unit is shaken in vertical direction to provide tactile feedback, then vibration feedback is generated, but vibration deviation is large depending on touch position and dead zones occur
Solution Approach 1:
The patent eliminates vibration deviation and dead zones by changing the vibration direction from vertical to horizontal. The horizontal vibrations generated by the actuator are transmitted uniformly across the touch input unit surface through the holder, ensuring consistent tactile feedback regardless of touch position, thereby achieving high vibration uniformity across the entire panel.
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 ensures uniform vibration feedback without area-related deviations, enhances user experience with clearer manipulation feedback, and reduces the occurrence of dead zones by effectively transmitting vibrations to the touch area, improving response speed and accuracy.
Implementation Method 1
an actuator installed inside the casing and configured to be operated to vibrate the holder and the vibration transmission plate coupled to the holder in a horizontal direction according to a user's touch input
Implementation Method 2
while being displaced due to horizontal vibrations of the holder and the vibration transmission plate, caused by the actuator, the damping members attenuate the horizontal vibrations
Data Source
AI summary
Proposed is a haptic reactive electrical switch including: a movable part including a floating panel having a touch area to which a user's touch is input and a holder coupled to the floating panel; a fixed part including a substrate and a casing configured to accommodate the substrate and be provided with at least two damping members; a vibration transmission plate configured to be interposed between the holder and the casing, thereby interconnecting the movable part and the fixed part; and an actuator configured to be operated to vibrate the holder and the vibration transmission plate coupled to the holder in a horizontal direction according to a user's touch input, wherein each of the damping members is configured in a form of a single object integrated into the casing, and an end part of one side thereof protrudes to a portion above the casing.