Laser Processing Machine Peltier Cooling Fin Placement
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Solution Overview
Problem
The integration of a Peltier refrigeration element inside a small household laser processing machine is impractical due to heat release, making it difficult to cool the laser oscillator effectively.
Innovation Solution
A laser processing machine design that includes a Peltier refrigeration element for cooling the laser oscillator, with a cooling flow path and a heat dissipation unit connected to a cooling fin installed upstream of the airflow at the air outlet, along with a filter to prevent contamination, allowing for efficient heat dissipation and miniaturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a Peltier refrigeration element is installed inside the device body to cool the laser oscillator, then the cooling effect is improved, but the heat release from the Peltier element causes practical implementation difficulties
Solution Approach 1:
The patent extracts the heat dissipation function from the internal device body by installing the cooling fin on the rear wall, which is positioned outside the main device enclosure. This allows the Peltier element to be installed inside the device body for effective cooling of the laser oscillator, while the heat generated by the Peltier element is dissipated to the external environment through the cooling fin, resolving the contradiction between achieving cooling effect and managing heat release.
2Device complexity
If the cooling fin is installed inside the device body, then the structure is compact, but heat dissipation efficiency is reduced due to limited airflow
Solution Approach 1:
The patent utilizes the rear wall dimension of the device body to mount the cooling fin, extending the heat dissipation structure to the external environment. This spatial arrangement allows the cooling fin to be positioned in a location with adequate airflow (upstream of the air outlet) while maintaining a compact internal structure, thereby achieving both compactness and effective heat dissipation.
3Loss of energy
If the air outlet is positioned to maximize airflow for heat dissipation, then heat dissipation is improved, but debris may enter the device body more easily
Solution Approach 1:
The patent introduces a filter as an intermediary component positioned between the external environment and the device body interior. The filter is installed in the airflow path upstream of the air outlet, allowing it to capture debris particles from the incoming airflow while permitting air to pass through for effective heat dissipation from the cooling fin. This resolves the contradiction between maximizing airflow for heat dissipation and preventing debris entry.
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 the installation of a Peltier refrigeration element within the machine, effectively cooling the laser oscillator and maintaining a reduced temperature of the cooling water, even in high ambient temperatures, while preventing debris entry and ensuring efficient airflow for heat discharge.
Implementation Method 1
a cooling device provided with a Peltier refrigeration element for cooling the cooling medium flowing in the cooling flow path
Implementation Method 2
The cooling device is connected to a cooling fin for dissipating heat generated by the Peltier refrigeration element
Data Source
AI summary
Provided is a laser processing machine having a Peltier refrigeration element for cooling a cooling medium of a laser oscillator in a body of a small household laser processing machine. A laser processing machine 1 includes a device body 10, a laser oscillator 71 received in the device body 10, a cooling medium flow path provided in the device body 10 for allowing a cooling medium of the laser oscillator 71 to flow, and a cooling device 45 provided with a Peltier refrigeration element for refrigerating the cooling medium flowing in the cooling flow path. A cooling fin 621 for discharging heat generated by the Peltier refrigeration element is connected to the cooling device 45. The cooling fin 621 is installed directly upstream of an airflow direction of an air outlet 121 for discharging air in the device body 10 out of the device body 10.