Haptic Input Structure With Isolated Actuator for Low-Power Vibration
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Solution Overview
Problem
Conventional haptic information presentation systems require high power consumption to transmit vibrations, as the entire housing vibrates, and this is exacerbated when physical stimuli are applied through input devices like sticks or buttons, leading to increased load on actuators and further power consumption.
Innovation Solution
A stimulus transmission device design where the actuator and pressure receiving portion move independently of the housing, using a supporting portion that does not move with the actuator, allowing efficient transmission of vibrations while reducing power consumption by decoupling the actuator's movement from the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the entire housing vibrates to transmit vibration stimulus to the user, then the vibration stimulus is transmitted to the user, but high power consumption is required
Solution Approach 1:
The housing is divided into a fixed portion and a movable portion. The actuator is disposed in the movable portion which can move relative to the fixed portion. This segmentation allows the vibration stimulus to be transmitted through only the movable portion rather than the entire housing, significantly reducing power consumption while maintaining effective haptic feedback transmission to the user.
2Use of energy by moving object
If physical stimulus is transmitted through the stick or button, then haptic feedback is provided to the user, but high load is applied to the actuator and power consumption is increased
Solution Approach 1:
The input device is segmented into a fixed portion (stick or button) and a movable portion containing the actuator. When the user presses the input device, only the movable portion with the actuator moves, rather than the entire housing. This reduces the load on the actuator and decreases power consumption while still providing effective haptic feedback through the input device.
Solution Approach 2:
The movable portion is designed with specific local properties to optimize force transmission. The actuator is positioned to directly contact or closely approach the input device, concentrating the force transmission path and reducing unnecessary load on the actuator while maintaining effective haptic feedback.
3Device complexity
If the actuator is integrated with the housing, then structural simplicity is achieved, but power consumption increases due to moving the entire housing
Solution Approach 1:
The housing is divided into fixed and movable portions, with the actuator disposed in the movable portion. This segmentation creates a simple yet effective structure where only the necessary components move, reducing power consumption while maintaining structural simplicity and ease of assembly.
Solution Approach 2:
The movable portion is designed to dynamically move relative to the fixed portion during operation. This dynamic configuration allows the system to adapt its structure during use, enabling low-power vibration transmission while maintaining structural integrity and simplicity.
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
This design effectively transmits physical stimuli to users while minimizing power consumption by isolating the actuator's movement from the housing, thus reducing unnecessary vibration and noise, and enhancing the efficiency of haptic feedback.
Implementation Method 1
a physical stimulus such as vibration is transmitted to a user through an entire housing
Data Source
AI summary
A stimulus transmission device suppresses power consumption, and effectively transmits a physical stimulus to a user. The stimulus transmission device has a pressure receiving portion which receives pressure from part of a human body, an actuator which drives the pressure receiving portion, and a supporting portion which supports the actuator. The actuator does not move in conjunction with the supporting portion.