Stylus Ejection Mechanism Using Vibration to Overcome Friction
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Solution Overview
Problem
Conventional electronic devices with built-in stylus pens often face difficulties in automatically ejecting the stylus due to the protrusion getting stuck, making it hard for users to access the pen.
Innovation Solution
An electronic device design featuring a housing with a first wheel and a driving unit that rotates to move the stylus pen from a stored position to a partially exposed position, utilizing a vibration alert driving motor, active and passive wheels, and a clutch mechanism to facilitate automatic ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a protrusion mechanism is used to eject the stylus pen, then the stylus can be unloaded from the housing, but the protrusion often gets stuck in the housing making it hard to push
Solution Approach 1:
The patent employs a vibration motor to generate mechanical vibrations that are transmitted through a transmission mechanism to the ejector. This vibration causes the ejector to vibrate and move back and forth, enabling it to overcome friction and stuck conditions in the groove, thereby reliably ejecting the stylus pen from the housing.
Solution Approach 2:
The patent replaces the conventional manual push mechanism with an automated vibration-based ejection system. The vibration motor and transmission mechanism substitute for direct manual force application, using vibrational energy to move the ejector and stylus rather than relying on user pushing force that often gets stuck.
2Device complexity
If manual pushing is used to eject the stylus pen, then the mechanism is simple, but it requires user force and the protrusion gets stuck
Solution Approach 1:
The ejection mechanism operates autonomously using a vibration motor that automatically generates the necessary vibrations to move the ejector and stylus. The system serves itself by converting motor vibrations into ejection motion through the transmission mechanism, eliminating the need for user pushing force while maintaining operational ease.
3Extent of automation
If a vibration motor and transmission mechanism are used, then automatic ejection is achieved, but the device complexity increases
Solution Approach 1:
The ejection system is divided into distinct functional modules: a vibration motor module, a transmission mechanism module (including transmission wheel and groove), and an ejector module. This segmentation allows each component to perform its specific function efficiently while making the overall system more manageable and maintainable despite the increased automation.
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 provides convenient and reliable automatic ejection of the stylus pen, enhancing user experience and device value by ensuring smooth and stable operation.
Implementation Method 1
a vibration alert driving motor disposed in the housing, the active wheel and the passive wheel hold and position the peripheral element, and the clutch connected to the active wheel
Data Source
AI summary
An electronic device capable of ejecting a peripheral element is disclosed, including a housing, a first wheel and a driving unit. The housing has a chamber, wherein the peripheral element is stored in the chamber. The first wheel is disposed in the housing, wherein the first wheel contacts the peripheral element. The driving unit is disposed in the housing, the driving unit rotates the first wheel, and the first wheel moves the peripheral element from a first position to a second position.