Retractable Protective-Film Phone Bracket for Humid Bathrooms
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Solution Overview
Problem
Mobile phones are not waterproof, making them susceptible to damage when used in vapor-rich environments, such as bathrooms, which limits their operational scope and durability.
Innovation Solution
A mobile terminal bracket with a protective-film retractable mechanism, sliding slots, and a fan for drying, along with optional features like a Bluetooth speaker and sucking disk, to create a waterproof and moisture-proof environment for the phone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mobile phone is used in a vapor-rich environment like a bathroom, then the operational scope is extended, but the electronic elements may be damaged due to lack of waterproof function
Solution Approach 1:
A protective film is introduced as an intermediary barrier between the mobile phone and the vapor-rich environment. The film is wound on a roller and can be extended to cover the phone screen when needed, providing waterproof protection without requiring the phone itself to be waterproof. This mediator allows the phone to operate in environments it would normally be vulnerable to.
Solution Approach 2:
The protective film system is made dynamic through the roller mechanism that allows the film to be extended and retracted as needed. The pull rod with spring mechanism enables the film to move from a stored position to a protective position, adapting to the user's needs in real-time. This dynamic system provides protection only when required, maintaining versatility while ensuring reliability.
2Reliability
If a protective film is added to protect the phone screen, then waterproof protection is improved, but the device complexity increases due to additional components
Solution Approach 1:
The support rest structure is designed to serve multiple functions: it provides mechanical support for the phone, houses the roller mechanism for the protective film, and integrates the drying fan system. By combining these functions into a single universal structure, the overall device complexity is minimized while still providing comprehensive protection and utility.
Solution Approach 2:
The protective film roller is nested within the support rest structure, and the pull rod mechanism is nested within the housing. The film itself nests around the roller when not in use. This nesting arrangement allows multiple components to occupy the same space efficiently, reducing the overall footprint and visual complexity of the device.
3Ease of operation
If the protective film is made retractable with a pull rod mechanism, then ease of operation is improved, but the device complexity increases due to additional mechanical components
Solution Approach 1:
The spring mechanism is configured to automatically retract the pull rod and restore the protective film to its initial position after use. This self-service feature eliminates the need for manual retraction mechanisms, reducing mechanical complexity while maintaining ease of operation. The user only needs to pull the rod to deploy the film; the system handles the retraction automatically.
Solution Approach 2:
The pull rod mechanism allows the protective film to be deployed quickly through a simple pulling motion, skipping the need for complex multi-step deployment procedures. The film extends rapidly to cover the screen, providing immediate protection. This rushing through the deployment process simplifies the user interaction while minimizing the time the mechanism needs to be engaged.
4Reliability
If a drying fan is added to remove moisture, then reliability in humid environments is improved, but the use of energy increases due to additional power consumption
Solution Approach 1:
The drying fan operates periodically rather than continuously - it is activated after the protective film is removed to dry any moisture on the screen or surrounding area. This periodic operation minimizes energy consumption while still providing effective moisture removal when needed. The fan is not running during normal phone operation, only activating to address moisture issues.
Solution Approach 2:
The drying fan is positioned to target specific local areas where moisture accumulates, such as the screen surface and the area around the protective film mechanism. Rather than attempting to dry the entire environment, the fan focuses its airflow on the critical local zones, improving moisture removal efficiency while minimizing the energy required compared to a full-environment drying system.
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 mobile terminal bracket effectively protects the phone from moisture damage, enhances usability in humid environments, and extends its operational range by providing a waterproof and moisture-proof solution.
Implementation Method 1
a resetting spring configured to rotate the first roller into a reset position
Implementation Method 2
the mobile terminal bracket further includes a fan in the support housing, and the fan is provided with an air exit side facing the outlet grid
Data Source
AI summary
A mobile terminal bracket comprises: a support housing provided with a supporting cavity at front side thereof, the supporting cavity comprising a bottom wall, a first side wall and a second side wall opposite to each other, a third side wall and a fourth side wall opposite to each other, a protective film clearing hole on the first side wall, the second side wall provided with a fixing fastener, the third side wall and the fourth side wall separately provided with a sliding slot; a protective film retraction mechanism comprising a first roller in the support housing, a protective film twined on the first roller, a reset spring for rotating the first roller to reset, a pull rod connected to end of the protective film, the pull rod slidably assembled in the sliding slots of the third, fourth side wall and clipped to the fixing fastener.