Beauty Device Frequency Control for Comfortable Skin Stimulation
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Solution Overview
Problem
Conventional beauty devices adjust bodily sensation through voltage or current changes, causing discomfort and limiting use for users with sensitive skin, as they cannot maintain a consistent experience.
Innovation Solution
A beauty device that adjusts the frequency of alternating current in multiple stages or steplessly while keeping voltage constant, using a sensitivity adjusting portion and frequency setting portion to tailor the bodily sensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If voltage or current is increased to enhance electrical stimulation intensity, then muscle exercise effect is improved, but bodily sensation becomes uncomfortable and users with sensitive skin cannot continue using the device
Solution Approach 1:
The patent changes the frequency parameter of the alternating current instead of adjusting voltage or current magnitude. By varying frequency within the range of 1 Hz to 300 kHz, the device achieves different electrical stimulation intensities and effects without increasing voltage, thereby avoiding excessive tingling sensation while maintaining effective muscle exercise for users with sensitive skin
Solution Approach 2:
The patent introduces a frequency setting portion that allows dynamic adjustment of the alternating current frequency during operation. This enables users to continuously adjust the stimulation characteristics according to their skin sensitivity and comfort level, transforming a static voltage-based system into a dynamic frequency-based system that adapts to individual user needs
2Object-affected harmful factors
If frequency is changed to adjust bodily sensation, then comfort for sensitive skin users is improved, but device complexity increases due to frequency setting and control mechanisms
Solution Approach 1:
The frequency setting portion serves multiple functions: it allows users to adjust frequency according to skin sensitivity, enables selection of different stimulation modes (muscle exercise vs. hyperthermic effect), and provides a universal control mechanism for various treatment scenarios. This multi-functionality justifies the added complexity by consolidating multiple control needs into a single frequency adjustment interface
Solution Approach 2:
The patent transitions from adjusting stimulation intensity along the voltage dimension to adjusting it along the frequency dimension. This dimensional shift allows for fine-grained control of bodily sensation without the harsh effects of voltage increases, as frequency changes produce subtler perceptible effects while still achieving the desired muscle stimulation and skin heating outcomes
3Temperature
If high frequency (several hundred kHz) is used for hyperthermic effect, then skin firmness and elasticity are improved, but excessive heat may be generated causing discomfort
Solution Approach 1:
The patent employs periodic alternating current at high frequencies to generate hyperthermic effects through dielectric heating of skin tissues. By using alternating rather than direct current, the system achieves uniform heating without localized hot spots, and the periodic nature allows for controlled energy delivery that prevents excessive temperature rise while maintaining effective skin warming for firmness improvement
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
Enables optimal intensity electrical stimulation for sensitive skin users, providing effective muscle exercise and sagging improvement without discomfort.
Implementation Method 1
A beauty device which provides electrical muscle stimulation called EMS (Electrical Muscle Stimulation) and applies an alternating current to provide electrical stimulation to the skin surface of a user
Implementation Method 2
In the RF, high frequency waves of several hundred kHz or more are used to warm the inside of skin
Data Source
AI summary
A beauty device applies an alternating current to the skin surface of a user and changes a frequency while keeping a voltage or the like constant in order to adjust the degree of a bodily sensation. A beauty device includes: an electrode portion that includes two or more electrodes and applies the alternating current between the electrodes; a frequency setting portion that sets the frequency of the alternating current either in multiple stages of three or more stages or steplessly; a sensitivity adjusting portion that adjusts the degree of a bodily sensation of the user; and an alternating current generating portion that outputs the set frequency; in which the frequency setting portion sets the frequency based on the adjustment of the sensitivity adjusting portion to adjust the degree of a bodily sensation.