Resonant Haptic Feedback Assembly for Multi-Mode Vibration
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Solution Overview
Problem
Existing haptic feedback systems in electronic devices, such as mobile phones and smart watches, are unable to effectively achieve different vibration modes due to limitations in motor technology, and face challenges with miniaturization as device sizes decrease.
Innovation Solution
A haptic feedback system comprising a fixed portion, a movable portion, a driving assembly, and a first connecting assembly, where the movable portion is driven by the driving assembly to generate feedback through different vibration modes by adjusting the frequency of the signal received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing vibration motors are used to generate haptic feedback, then the device can provide vibration notification, but the motors cannot effectively achieve different vibration modes and have limited room for improvement in size reduction
Solution Approach 1:
The haptic feedback system is divided into separate functional components: a driving assembly that generates driving forces and a movable portion that produces vibration. This segmentation allows the driving assembly to focus on generating force while the movable portion handles vibration generation, enabling multiple vibration modes without increasing overall system complexity.
Solution Approach 2:
The movable portion is designed to be movable relative to the fixed portion, allowing it to dynamically change position and generate different vibration modes. The connecting assembly enables the movable portion to move between different positions, each corresponding to a different vibration mode, thus achieving versatility without complex motor structures.
2Volume of moving object
If device size is reduced to meet miniaturization requirements, then portability improves, but existing vibration motors have limited ability to maintain vibration functionality
Solution Approach 1:
The haptic feedback system utilizes the dimensional space within the device by positioning the movable portion at different locations relative to the fixed portion. This spatial arrangement allows the system to generate multiple vibration modes within a compact volume, maintaining vibration functionality while achieving miniaturization.
Solution Approach 2:
The system changes the position parameter of the movable portion relative to the fixed portion to generate different vibration modes. By adjusting the position of the movable portion through the connecting assembly, the system can produce various vibration characteristics without increasing device size, thus maintaining reliability in miniaturized devices.
3Device complexity
If a single vibration motor is used, then device simplicity is maintained, but the ability to provide distinct haptic feedback through different vibration modes is lost
Solution Approach 1:
The movable portion serves multiple functions: it is driven by the driving assembly, connected to the fixed portion via the connecting assembly, and positioned at different locations to generate different vibration modes. This multi-functionality allows a single system to provide diverse haptic feedback without requiring multiple separate motors, maintaining structural simplicity while achieving versatility.
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 system achieves miniaturization and provides distinct haptic feedback by enabling different vibration modes through precise control of the movable portion's movement relative to the fixed portion, enhancing user experience in electronic devices.
Implementation Method 1
a driving assembly 190 and a first connecting assembly 160. The fixed portion F is fixedly connected to the electronic device. The movable portion M is movable relative to the fixed portion F. The driving assembly 190 is configured to drive the movable portion M to move relative to the fixed portion F
Implementation Method 2
The driving assembly receives a first signal having a first frequency, and the first frequency is the same as the frequency of the first vibration mode
Data Source
AI summary
A haptic feedback system is configured to be disposed on a device, and includes: a fixed portion, a movable portion, a driving assembly, and a first connecting assembly. The fixed portion is fixedly connected to the device. The movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the fixed portion for generating feedback to the device. The movable portion is movably connected to the fixed portion via the first connecting assembly, so that the movable portion has a first vibration mode relative to the fixed portion. The driving assembly receives a first signal having a first frequency, and the first frequency is the same as the frequency of the first vibration mode.