UV LED Mobile Phone Charger Sterilization Design
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Solution Overview
Problem
Conventional mobile phone sterilization devices using UV lamps are bulky, inefficient, and pose environmental and health risks due to mercury leakage, and cannot perform sterilization simultaneously with charging.
Innovation Solution
A mobile phone charger incorporating sterilization UV LEDs that are compact, safe, and capable of sterilizing the device while charging, with features like a UV LED-equipped mobile phone stand, separate insertion grooves for the phone and battery, and a handle with integrated UV LEDs for enhanced sterilization efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a UV lamp is used for sterilization, then sterilization function is achieved, but the device occupies large space and cannot be miniaturized
Solution Approach 1:
The patent changes the physical parameter of the light source from conventional UV lamp to UV LED, which emits ultraviolet light in the 200-400nm range. This parameter change enables compact size while maintaining sterilization effectiveness, as UV LEDs have much smaller dimensions compared to traditional UV lamps.
Solution Approach 2:
The patent replaces the mechanical UV lamp system with a semiconductor-based UV LED system. This substitution eliminates the need for bulky lamp structures, glass envelopes, and associated mounting hardware, enabling significant miniaturization while maintaining the sterilization function.
2Reliability
If a UV lamp is used for sterilization, then sterilization is performed, but mercury leakage causes environmental pollution and health risks
Solution Approach 1:
The patent employs UV LEDs which are solid-state semiconductor devices without mercury content. These LEDs have a designed operational lifetime and can be replaced when depleted, eliminating the environmental hazard of mercury leakage associated with traditional UV lamps while maintaining sterilization effectiveness.
Solution Approach 2:
The patent converts the harmful mercury-containing UV lamp technology into a safe mercury-free UV LED technology. The harmful factor (mercury) is completely eliminated while the beneficial sterilization function is preserved through the use of semiconductor-based ultraviolet light emission.
3Reliability
If a UV lamp is used for sterilization, then sterilization is performed, but it cannot be done simultaneously with charging operation
Solution Approach 1:
The patent merges the sterilization function and charging function into a single integrated device. The UV LEDs are positioned to sterilize the mobile phone surface while the charging contacts simultaneously charge the device, allowing both operations to occur concurrently without requiring separate devices or sequential processes.
4Reliability
If a UV lamp is used for sterilization, then sterilization is performed, but it cannot intensively sterilize specific portions of the portable terminal
Solution Approach 1:
The patent applies local quality by positioning multiple UV LEDs at specific locations (front surface, rear surface, and side surfaces) of the mobile phone charger. This localized arrangement enables intensive sterilization of specific portions of the mobile phone that are most prone to bacterial contamination, such as the screen and touch areas.
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 phone charger effectively sterilizes the device during charging, preventing environmental pollution and health risks, while allowing for targeted sterilization and improved product design through compactness.
Implementation Method 1
one or more first UV LEDs installed at one side of the space of the charger case
Implementation Method 2
sterilization operation while charging a mobile phone
Data Source
AI summary
A mobile phone charger with a sterilization UV LED may include: a charger case having a space formed therein and including a mobile phone stand formed at the front surface thereof; and one or more first UV LEDs installed at one side of the space of the charger case.