Foldable Alarm Device Pressure Detection Mechanism
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Solution Overview
Problem
Foldable electronic devices, such as notebook computers and mobile phones, are prone to malfunctions due to external shocks and pressure, which are not covered by warranties, leading to disputes between users and sales personnel as the cause of malfunctions is often unclear.
Innovation Solution
A foldable electronic device equipped with an alarm module comprising a pressure sensor, a chip, and a speaker, which detects pressure and sends an alarm when external forces exceed the display screen's maximum sustainable pressure, warning the user to reduce pressure and potentially preventing malfunctions, and includes pressure-sensitive paper to determine damage cause.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If foldable electronic devices are made compact and portable, then ease of carrying is improved, but susceptibility to damage from shocks and pressure increases
Solution Approach 1:
The patent places pressure-sensitive paper between the display screen and housing before the device is used. This preliminary placement allows the paper to record any excessive pressure applied to the display screen during transport or use, providing evidence before damage occurs and helping prevent warranty disputes.
Solution Approach 2:
The pressure-sensitive paper acts as an intermediary element between the display screen and the housing. It transfers and records the pressure information from external forces applied to the device, making visible evidence of shocks or excessive pressure that would otherwise be invisible to the user.
2Ease of manufacture
If warranty coverage is limited to manufacturing defects, then manufacturing quality control is improved, but user protection against accidental damage decreases
Solution Approach 1:
The patent converts the potentially harmful situation of undetected damage into a beneficial evidence-recording function. The pressure-sensitive paper transforms invisible pressure forces into visible color changes, providing objective evidence that helps resolve warranty disputes and protects both manufacturers and users.
Solution Approach 2:
The pressure-sensitive paper utilizes color change as a visual indicator of excessive pressure. When pressure exceeds a certain threshold, the paper changes color, providing clear, visible evidence of damage-causing forces without requiring complex electronic sensors or processing.
3Device complexity
If the cause of malfunction is not easily determined, then device complexity is reduced, but dispute resolution between users and sales personnel becomes difficult
Solution Approach 1:
The pressure-sensitive paper uses color changes to provide visual information about pressure events. This simple visual indicator system preserves important information about whether excessive pressure was applied to the device, making it easy to determine the cause of malfunction without complex diagnostic tools.
Solution Approach 2:
The pressure-sensitive paper automatically records pressure information without requiring external intervention, sensors, or power sources. The paper performs the information-recording function passively, eliminating the need for complex active monitoring systems while still providing valuable diagnostic information.
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 alarm module reduces the likelihood of device malfunctions by alerting users to excessive pressure, and the pressure-sensitive paper clarifies damage responsibility, minimizing disputes between users and sales personnel.
Implementation Method 1
The pressure sensor electrically coupled to the circuit board detects pressure applied thereon by the first housing or the display screen and then sends a signal back to the chip
Implementation Method 2
The speaker is disposed on the circuit board, and the chip controls the speaker to send out an alarm according to the signal from the pressure sensor
Implementation Method 3
warning the user when pressure caused by jarring or squeezing affects pressure sensitive paper with pressure higher than the maximum pressure that can be sustained by the display screen, where upon the color of the pressure sensitive paper changes
Data Source
AI summary
A foldable electronic alarm device including a first housing, a second housing, a pivot, a display screen and an alarm module is provided, wherein the pivot is disposed in one side of the first housing and the second housing to enable the first housing to pivot relative to the second housing. The display screen is disposed inside the first housing. Moreover, the alarm module is disposed between the display screen and the first housing. When the alarm module is pressed by the first housing or the display screen, an alarm is sent out by the alarm module.