Depilating Instrument Airflow Layout for Dual-Channel Heat Dissipation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Traditional hair-removal devices suffer from inadequate heat dissipation performance due to a single air-inlet channel, leading to reduced durability and discomfort during use.

Innovation Solution

The hair-removal apparatus features two independent air-inlet channels that allow for simultaneous heat dissipation from both the refrigerating and heat-generating assemblies, utilizing a fan to create a fast-flowing airflow that efficiently dissipates heat from these components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a depilating instrument with a cutting element is used, then hair removal effectiveness is improved, but risk of injury to the user is increased

Engineering Contradiction:
Improvehair removal effectivenessVSAvoidrisk of injury
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

A protective barrier (film or coating) is applied between the cutting element and the user's skin to prevent direct contact and potential injury while allowing the cutting element to effectively remove hair. This intermediary layer resolves the contradiction by maintaining cutting effectiveness while eliminating the harmful injury risk.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The protective barrier is applied in advance to the cutting element or device surface before use, creating a pre-established safety mechanism that prevents injury before it can occur. This preliminary protective action allows the device to maintain its cutting function while preemptively neutralizing the injury hazard.

Inventive Principle:
Principle #9Preliminary anti-action

2Object-affected harmful factors

If a protective barrier is applied to the depilating instrument, then safety is improved, but the protective barrier may interfere with hair removal effectiveness

Engineering Contradiction:
ImprovesafetyVSAvoidhair removal effectiveness
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The protective barrier is designed with varying properties in different regions or with specific material characteristics that allow it to be safety-effective in some aspects while maintaining hair removal effectiveness in others. For example, the barrier may have micro-porous structure or specific mechanical properties that allow hair penetration while blocking skin contact.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The protective barrier's physical or chemical parameters are optimized to allow effective hair removal while providing safety. This may involve adjusting thickness, porosity, flexibility, or material composition to balance the dual requirements of safety and effectiveness.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4201479B1Depilating instrument
Publication Date: 2026.05.06 SHENZHEN YANGWO ELECTRONICS
  • EP4201479B1 patent drawingFigure 1~2
  • EP4201479B1 patent drawingFigure 3~4
  • EP4201479B1 patent drawingFigure 5~6

AI summary

A hair-removal apparatus is provided, which includes a main body, a housing, a first air-inlet channel and a second air-inlet channel. The main body is accommodated in the housing and includes a heat-generating assembly and a refrigerating assembly. The first air-inlet channel communicates the refrigerating assembly with ambiance to absorb external air and dissipate heat from the refrigerating assembly, and the second air-inlet channel communicates the heat-generating assembly with ambiance to absorb external air and dissipate heat from the heat-generating assembly. The hair-removal apparatus is provided with two independent air inlet channels, which effectively enhances the heat dissipation performance of the hair-removal apparatus and improves the durability and safety of the hair-removal apparatus.