Dual-Motor Brush Motion Control for Skin-Specific Cleansing
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Solution Overview
Problem
Current facial and cleaning brushes either rely solely on rotation or sonic vibration, limiting their effectiveness in cleaning and skin care, as they fail to combine these motions optimally to address different skin types and cleansing needs.
Innovation Solution
A dual motor device that combines micro-rotation with sonic vibration, allowing adjustable ratios and speeds between 0 and 100%, utilizing a planetary gear system, along with sensors and RFID communication for optimal brush head and cleanser interaction, and a mobile interface for user customization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a brush uses only rotation or only sonic vibration, then the device is simple, but the cleaning effectiveness and adaptability to different skin types are limited
Solution Approach 1:
The patent combines two different motor systems (rotational motor and sonic vibration motor) into a single brush device, allowing the bristles to perform both rotational and sonic vibration movements simultaneously or independently. This merging of functions enables the device to adapt to different skin types and cleansing needs while managing complexity through integrated design
2Adaptability or versatility
If the brush provides fixed motion patterns, then the device is simple to operate, but it cannot be customized for specific skin types and cleansing tasks
Solution Approach 1:
The patent implements adjustable motion patterns that can dynamically change based on user selection. The brush can switch between different rotational speeds, sonic vibration intensities, and motion combinations (e.g., micro-rotation with sonic vibration) to accommodate specific skin types and cleansing tasks, making the device adaptable while maintaining ease of use through preset options
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
Enhances user experience by providing a richer cleaning and skin care experience through customizable motion patterns tailored to specific skin types and cleansing tasks, improving cleaning efficiency and skin health.
Implementation Method 1
the system utilizes a planetary gear system, in which the ring gear can be imparted with a sonic vibration that is additive to the otherwise rotary output
Data Source
AI summary
An apparatus comprising a first motor to control a rotation and a second motor to control a vibration of a moving portion of the apparatus. In one embodiment, the apparatus further comprises a controller to control of a ratio between the rotation and the vibration.


