Hair Removal Lamp Reflector Layout for Cooling and Uniform Arc Light

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Solution Overview

Problem

Hair removing devices generate excessive heat, leading to reduced lamp life and potential skin burns, and often produce uneven light output, with trigger wires failing to consistently activate the lamp.

Innovation Solution

A hair removing device with a reflector that reflects light from a strip-shaped gas excitation light source, enhancing heat dissipation through a carbon-containing layer and optimizing the distance between the light source and reflector to ionize gas for arc light discharge, eliminating the need for a triggering line and improving light uniformity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the lamp operates to provide hair removal function, then hair removal efficiency is improved, but heat accumulates reducing lamp service life and causing skin burns

Engineering Contradiction:
Improvehair removal efficiencyVSAvoidlamp temperature
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The patent extracts the harmful heat from the system by introducing a dedicated heat dissipation pathway. The heat dissipation component is positioned to receive heat from the lamp, separating the light emission function from heat management, allowing the lamp to operate at high efficiency while heat is actively removed through conduction and radiation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a heat dissipation component as an intermediary between the lamp and surrounding structures. This intermediary component facilitates heat transfer from the lamp to the environment, mediating the thermal interaction and preventing heat accumulation that would otherwise reduce lamp life and cause skin burns.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a trigger wire is used to activate the lamp, then the lamp can be controlled, but the contact reliability between trigger wire and lamp is poor increasing activation cost

Engineering Contradiction:
Improvelamp activation controlVSAvoidtrigger contact reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the mechanical trigger wire contact system with an electromagnetic field-based activation system. The reflector serves dual functions: reflecting light and generating an electromagnetic field that reliably activates the lamp without requiring physical contact, eliminating the reliability issues of mechanical contact while maintaining ease of operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent makes the reflector multi-functional by enabling it to serve both as a light reflector and as an electromagnetic field generator for lamp activation. This eliminates the need for a separate trigger mechanism, improving reliability while maintaining operational simplicity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 achieves efficient heat dissipation, reduces production costs, and ensures uniform light emission, preventing skin burns and enhancing hair removal efficiency.

Implementation Method 1

a reflector, being a conductor and being capable of reflecting light

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 2

a high electric field may be generated in the reflector. A high voltage generated by the reflector may ionize gas in the light source to generate an arc light for discharging

Methodology Applied
Scientific EffectGas ionization: Ionisation

Implementation Method 3

ionize gas in the light source to generate an arc light for discharging

Methodology Applied
Scientific EffectArc discharge: Electric Arc

Implementation Method 4

enhancing heat dissipation through a carbon-containing layer

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4331430B1Hair removing device
Publication Date: 2026.03.04 SHENZHEN ULIKE SMART ELECTRONICS CO LTD
  • EP4331430B1 patent drawingFigure 1~3
  • EP4331430B1 patent drawingFigure 4~6
  • EP4331430B1 patent drawingFigure 7~8

AI summary

The present disclosure provides a hair removing device, including: a reflector (1), being a conductor and being capable of reflecting light; a light source (2), being a strip-shaped gas excitation light source, arranged opposite to the reflector (1), and being configured to be excited by the reflector (1) to emit light after the reflector (1) being conducted; a bracket (5), wherein the reflector (5) is fixed to the bracket, wherein a distance between a body of the light source (2) and the reflector (1) is greater than zero and less than or equal to 0.3 mm. The heat dissipation effect of the hair removing device is improved. Further, heat of the light source is dissipated uniformly, the service life of the light source is extended. Further, the improved heat dissipation performance allows the user to use the hair removing device more comfortably.