Integrated Stylus Vibration Unit Using Battery as Moving Mass
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Solution Overview
Problem
Existing vibration devices in styluses for haptic feedback face challenges of excessive space occupation and increased cost due to the size of individual vibration motors.
Innovation Solution
A vibration device with a housing and a vibration unit that includes a stator, a vibrator suspended by an elastic support member, and a battery, where the coil and magnet interact to drive the vibrator for haptic feedback, effectively utilizing space and reducing costs by using the battery as mass for vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an individual vibration motor is mounted in the stylus, then haptic feedback function is achieved, but space utilization deteriorates and cost increases
Solution Approach 1:
The patent combines the vibration motor components (coil, magnet, vibrator) with the battery, integrating multiple functions into a single compact unit. The battery serves dual purposes as both power source and mass for vibration, eliminating the need for separate mass components and reducing overall space occupation in the stylus.
Solution Approach 2:
The battery is designed to serve multiple functions: it provides electrical power to the coil and simultaneously acts as the mass component for vibration generation. This multi-functionality reduces the number of separate components needed, thereby improving space utilization while maintaining reliable haptic feedback functionality.
2Reliability
If an individual vibration motor is mounted in the stylus, then haptic feedback function is achieved, but manufacturing cost increases
Solution Approach 1:
By merging the vibration motor components with the battery into a single integrated unit, the patent reduces the number of separate parts that need to be manufactured and assembled. This integration simplifies the manufacturing process and reduces component costs, making the stylus more cost-effective while maintaining full haptic feedback functionality.
Solution Approach 2:
The battery's dual role as power source and vibration mass eliminates the need for separate mass components, reducing bill of materials costs and simplifying assembly operations. This multi-functional design directly lowers manufacturing costs while ensuring reliable haptic feedback performance.
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 vibration device achieves enhanced space utilization and reduced costs by using the battery as mass for vibration, improving haptic feedback without the need for additional mass components.
Implementation Method 1
the coil and the magnet interact to drive the vibrator to vibrate relative to the stator for generating haptic feedback
Implementation Method 2
a vibrator suspended by the elastic support member
Data Source
AI summary
The present disclosure discloses a vibration device includes a housing with a receiving space; and a vibration unit received in the receiving space, including an elastic support member; a stator fixed to the housing, including one of a coil and a magnet fixed to the housing; a vibrator suspended by the elastic support member, including the other of the coil and the magnet; and a battery suspended by the elastic support member; wherein the coil and the magnet interact to drive the vibrator to vibrate relative to the stator for generating haptic feedback. The vibration device in the present disclosure has higher space utilization rate and lower cost.