Self-Cleaning Door Handle With UV Film and Rollers
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Solution Overview
Problem
Autonomous vehicle door handles are high-touch surfaces that can harbor bacteria, leading to the spread of germs among passengers and requiring labor-intensive manual cleaning.
Innovation Solution
Self-cleaning door handles equipped with UV light and chemical sanitization, controlled by a sensor network to automatically sanitize after each ride, using a continuous or disposable roll within a tamper-resistant housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual cleaning of door handles is performed, then hygiene is maintained, but labor time and operational costs increase
Solution Approach 1:
The door handle system performs cleaning automatically without human intervention. Sensors detect when the vehicle is stationary and initiate the cleaning sequence, with UV lights and chemical dispensers autonomously sanitizing the handle surface, eliminating the need for manual cleaning labor
Solution Approach 2:
The system applies chemical sanitizers and activates UV lights in advance before the next passenger arrives. The cleaning process is triggered automatically when the vehicle is detected to be stationary, ensuring the handle is sanitized before potential contact by the next user
2Object-affected harmful factors
If frequent manual cleaning is implemented, then bacteria spread is reduced, but operational costs and time consumption increase
Solution Approach 1:
The automatic cleaning system continuously maintains hygiene without requiring vehicle downtime for manual cleaning. The handle self-sanitizes between passenger interactions, allowing the vehicle to remain in service and maximizing utilization while preventing bacteria spread
Solution Approach 2:
The cleaning system operates continuously whenever the vehicle is stationary, with sensors detecting idle periods and automatically initiating UV and chemical cleaning cycles. This ensures constant hygiene maintenance without interrupting vehicle operation or reducing productivity
3Ease of operation
If self-cleaning mechanisms are added to door handles, then manual cleaning labor decreases, but device complexity increases
Solution Approach 1:
The door handle integrates multiple functions into a single unit: mechanical door operation, sensor detection for vehicle state, chemical dispenser, UV light source, and control logic. This consolidation manages complexity by making the handle a multi-functional smart component rather than adding separate systems
Solution Approach 2:
The cleaning components (UV lights, chemical dispensers, sensors) are integrated directly into the door handle structure. The control system merges sensor data, cleaning activation, and timing logic into a unified automated sequence, simplifying operation while managing technical complexity through integration
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
Reduces the spread of bacteria, decreases manual cleaning labor, enhances passenger safety, and aids in compliance with health regulations, increasing vehicle utilization and reducing operational costs.
Implementation Method 1
A light irradiates a contaminated portion of the hygienic film using electromagnetic radiation in an ultraviolent spectrum to reduce a quantity of bacteria on the contaminated portion of the hygienic film
Data Source
AI summary
Among other things, techniques are described for self-cleaning door handles. A door handle for a vehicle includes a housing including a hand grip; a hygienic film that is formed around a portion of a circumference of the hand grip; a plurality of cylindrical rollers rotatably connected to the housing and are configured to rotationally guide the hygienic film along the portion of the circumference of the hand grip; and a light that is configured to emit electromagnetic radiation in an ultraviolent spectrum and configured to irradiate at least one portion of the hygienic film to reduce a quantity of bacteria on the at least one portion of the hygienic film.