Pulse Light Hair Removal Cooling Duct for High-Frequency Operation
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Solution Overview
Problem
Traditional hair removal devices face inefficiency and potential damage due to poor heat dissipation, necessitating reduced power output to ensure safety, which extends use time and compromises user experience.
Innovation Solution
A hair removal device design incorporating a housing with an air inlet and outlet, an air duct passing through the pulse light source, and a fan to generate airflow for enhanced heat dissipation, increasing the heat dissipation area and allowing higher pulse light source frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pulse light source operates at high frequency to improve hair removal efficiency, then productivity increases, but temperature rises causing device damage or safety issues
Solution Approach 1:
The patent extracts the heat dissipation function as a separate, dedicated system component. The air duct is designed to pass through both sides of the pulse light source, creating independent heat extraction pathways that separate the light emission function from the heat management function, allowing high-frequency operation without temperature buildup
Solution Approach 2:
The patent introduces air as an intermediary cooling medium. The fan-driven airflow acts as a mediator between the heat source (pulse light source) and the external environment, transferring heat away from the device through the air duct passages without requiring direct thermal contact or complex active cooling systems
2Reliability
If the output power is reduced to ensure safety and stability, then temperature control improves, but productivity decreases and user time increases
Solution Approach 1:
The patent enables continuous high-power operation by implementing a sustained cooling mechanism. The air duct system with fan-driven airflow provides continuous heat removal during pulse light operation, allowing the device to maintain high output power indefinitely without thermal shutdown or power reduction, thus maintaining both safety and productivity
3Productivity
If the number of light flashes is increased to improve efficiency, then productivity increases, but heat accumulation occurs leading to device malfunction or damage
Solution Approach 1:
The patent segments the heat dissipation pathway into multiple independent channels. The air duct passes through both sides of the pulse light source, creating separate heat extraction routes for each side of the device. This segmentation allows heat from multiple light flashes to be distributed and removed through different pathways, preventing localized heat accumulation even during high-frequency operation
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 design effectively dissipates heat, enabling higher frequency operation and improved efficiency, reducing user time and enhancing the overall user experience.
Implementation Method 1
a fan, provided inside the air duct for generating an airflow, to make the airflow enter from the air inlet and pass through the air duct and exit from the air outlet
Implementation Method 2
The traditional photon hair removal device removes hair through the use of pyrolysis principle of a preset wavelength of intense pulse light source
Data Source
AI summary
A hair removal device includes a housing, a pulse light source, an air duct, and a fan. The fan is hollow inside. The housing is provided with a light outlet, an air inlet and an air outlet. The pulse light source is provided inside the housing, pulse light emitted by the pulse light source is emitted from the light outlet; an air duct is provided in the housing and in communication with the air inlet and the air outlet, and the air duct passes through two sides of the pulse light source, respectively; and the fan is provided within the air duct for generating an airflow, to make the airflow enter from the air inlet and pass through the air duct and exit from the air outlet. A portion of the air duct is provided on two sides of the pulse light source.