Skin Care Brush Head Damping for Gentle Vibratory Cleansing

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing powered skin care devices are too aggressive and transmit excessive vibrations to the user's hand, making them uncomfortable and potentially harsh on the skin.

Innovation Solution

A powered skin care device with a vibration damper and soft bristles, featuring a resilient collar to reduce vibration transmission and a motorized vibratory mechanism generating gentle frequencies, combined with a brush head design that differentiates bristle length and stiffness for various skin types.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a motor-driven skin treatment device with rotating or vibrating brushes is used, then skin cleansing capability is improved, but the device becomes aggressive to the skin and transmits excessive vibrations to the user's hand

Engineering Contradiction:

Improveskin cleansing capabilityVSAvoidvibration transmission to hand and aggressiveness to skin

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

A vibration damper is introduced as an intermediary component between the motor and the brush head to absorb and reduce vibrations. The damper acts as a mediator that allows the motor to generate cleansing vibrations while preventing excessive vibration transmission to the user's hand and reducing aggressiveness to the skin.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The vibration frequency and amplitude parameters are optimized to provide effective skin cleansing while remaining gentle. The motor is designed to operate at specific frequency ranges that balance cleansing efficacy with comfort, avoiding overly aggressive vibration levels.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If hard bristles are used for effective cleansing, then skin cleaning efficiency is improved, but the device becomes harsh on the skin

Engineering Contradiction:

Improveskin cleaning efficiencyVSAvoidharshness to skin

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The brush head incorporates bristles with varying local qualities - different lengths, stiffness levels, and densities in different zones. This allows certain areas to provide stronger cleansing action while other areas remain gentler, accommodating different skin types and sensitivity levels across the face.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The brush head uses composite bristle structures combining different materials and configurations to achieve both effective cleansing and skin friendliness. The combination of varied bristle properties creates a balanced cleansing effect that is efficient yet gentle.

Inventive Principle:

Principle #40Composite materials

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 provides a gentler cleansing experience with reduced vibration and noise transmission to the hand, ensuring comfort and effective skin care across different skin types.

Implementation Method 1

A vibration damper is provided between a head supporting platform including a motorized vibratory mechanism, and a handle of the device

Methodology Applied

Scientific EffectVibration damping: Damping

Data Source

PatentEP3136922B1Powered skin care device

Publication Date: 2023.11.29 ELC MANAGEMENT LLC

Figure 1
Figure 2
Figure 3~4

AI summary

A powered skin care device is provided with a snap-fit brush head that selectively attaches to a handle of the device. The vibrating motor provides vibrations in a relatively gentle frequency and the brush head is provided with relatively soft bristles.