Skin care device
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Solution Overview
Problem
Existing skin care devices with brushes can harbor bacteria over time, potentially infecting the skin, and often lack optimal brush rotation or vibration speed settings for different skin parts, leading to ineffective cleaning.
Innovation Solution
A skin care device with a cradle that accommodates and sterilizes the brush using UV-C LED light, and includes a controller to adjust brush operation based on skin parts, ensuring effective cleaning and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the brush is used continuously for skin care, then skin cleaning effectiveness is improved, but bacterial contamination of the brush increases
Solution Approach 1:
The sterilization module performs preliminary sterilization action on the brush before it accumulates harmful bacteria during use. By incorporating a UV-C LED sterilization module in the cradle that automatically sterilizes the brush when placed in the accommodation space, the system proactively eliminates bacterial contamination before it reaches harmful levels, resolving the contradiction between continuous use and bacterial contamination.
2Productivity
If brush rotation speed is increased for better cleaning, then cleaning effectiveness is improved, but skin irritation risk increases
Solution Approach 1:
The motor is configured to rotate or vibrate the brush with variable speed and intensity settings. The controller can adjust the rotation speed dynamically based on the skin part being treated, allowing higher speeds for tougher areas and lower speeds for sensitive areas, thus resolving the contradiction between cleaning effectiveness and skin irritation risk.
Solution Approach 2:
The system applies different rotation speeds and vibration intensities to different skin parts. The controller can vary the brush operation parameters according to the specific skin area being treated, providing locally optimized cleaning that is effective yet gentle, resolving the contradiction between uniform high-speed cleaning and localized skin sensitivity.
3Adaptability or versatility
If multiple skin parts are treated with optimal brush speed, then skin care quality is improved, but device complexity increases
Solution Approach 1:
The controller automatically selects and adjusts the appropriate rotation speed and vibration intensity for different skin parts without requiring complex user input. The system self-adjusts parameters based on pre-programmed settings for various skin areas, providing skin part-specific optimization while keeping the user interface simple and the overall device complexity manageable.
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 device effectively sterilizes the brush, reducing bacterial risk and optimizing brush speed for various skin areas, enhancing skin care efficacy and safety.
Implementation Method 1
a sterilization module configured to irradiate ultraviolet light to the at least one brush accommodated in the accommodation space
Implementation Method 2
The sterilization module may include a UV-C LED configured to irradiate ultraviolet light having a UV-C wavelength
Data Source
AI summary
Provided is a skin care device including at least one brush brought into contact with skin of a user, a motor configured to rotate or vibrate at least one of the at least one brush, a battery configured to supply power to the moto, a main body provided with the at least one brush disposed on one surface thereof and having an accommodation space configured to accommodate the motor and the battery therein, and a cradle having an accommodation space configured to accommodate the at least one brush and having a charging module configured to supply power to the battery.