Elastic-Resin Slit Sealing for Water-Resistant Haptic Feedback
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Solution Overview
Problem
Existing haptic feedback devices face challenges in effectively providing tactile sensations while minimizing water and dust ingress through vibration slits, and often require additional components for operation detection, leading to increased power consumption.
Innovation Solution
A haptic feedback device with a vibration member featuring slits filled by an elastic resin, utilizing a piezoelectric element for vibration actuation, and a controller to determine operations without additional detection members, reducing power consumption and enhancing vibration efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If vibration slits are provided in the vibration member, then vibration efficiency is improved, but water and dust ingress increases
Solution Approach 1:
An elastic resin is introduced as an intermediary substance that fills the vibration slits. This resin allows vibration transmission while physically blocking water and dust from entering through the slits, thus resolving the contradiction between maintaining vibration efficiency and preventing harmful factor ingress.
Solution Approach 2:
The elastic resin acts as a flexible sealing material that can deform with vibration while maintaining its sealing function. This flexible membrane approach allows the slits to remain functional for vibration transmission while providing continuous protection against water and dust penetration.
2Measurement precision
If additional operation detection members are added, then operation detection accuracy is improved, but power consumption increases
Solution Approach 1:
The vibration member is designed to serve multiple functions: it acts as both the vibration-generating component and the operation detection sensor. When the user presses the vibrator, the deformation of the vibration member directly indicates the operation, eliminating the need for separate detection members and reducing power consumption while maintaining detection accuracy.
Solution Approach 2:
The vibration member performs self-detection of operations through its own mechanical deformation. The structure inherently provides detection capability through its response to user input, without requiring additional active sensing components that would consume power.
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 device provides effective haptic feedback with reduced water and dust ingress, eliminating the need for separate operation detection components and minimizing power consumption.
Implementation Method 1
a first vibration actuator that vibrates the vibrator... utilizing a piezoelectric element for vibration actuation
Implementation Method 2
The elastic resin at least includes a portion closing the at least one slit
Data Source
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AI summary
A haptic feedback device includes a vibrator on which a user operation is performed and a first vibration actuator that vibrates the vibrator. The vibrator includes a vibration member and an elastic resin. The vibration member is to be vibrated by the first vibration actuator. The vibration member includes at least one slit. The elastic resin at least includes a portion closing the slit.