Phase change refrigeration high-power laser thermal management device

Abstract

The invention provides a phase change refrigeration high-power laser thermal management device and a laser system. The device comprises a casing, an evaporator, a heater, a laser and an output fiber.The evaporator is made of a metal material, and the evaporator is internally provided with a cooling pipe capable of circulating a phase change material, the evaporator is suspended and fixed in the casing, and two ends of the cooling pipe pass through walls of the evaporator and the casing and then are outside the casing. The heater and the laser are arranged on the evaporator, the heater is on the evaporator close to the laser, one end of the output fiber is connected to an output end of the laser, and the other end passes through the wall of the casing and then is outside the casing. The working medium temperature of the laser is reduced with a phase change refrigeration mode, the heat is transferred from a low temperature zone to a high temperature zone through the work of the compressor, then a cold and heat division structure is used to improve the heat convection efficiency between the laser system and the outside, and the volume, weight, power consumption and noise of the lasersystem are reduced. The device is applied to the field of laser equipment.

Description

technical field [0001] The invention relates to the field of laser equipment, in particular to a phase-change refrigeration high-power laser thermal management device and a laser system. Background technique [0002] High-power lasers can be widely used in industrial processing, national defense, scientific research and other fields. Especially in the industrial field, mature laser cutting, laser coating, laser welding and other devices have appeared, which have played an important role in promoting the development of my country's industry. Semiconductor lasers, fiber lasers, and solid-state lasers are the most widely used high-power laser solutions. During the working process of the laser, the laser medium will emit a large amount of heat, and the heat must be exported by using efficient heat dissipation technology to make the laser medium work at a constant working temperature. Medium and low power lasers can be dissipated in a fully air-cooled structure. Commercially ava...

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Problems solved by technology

[0003] Aiming at the problem of large heat dissipation requirements in the working process of high-power lasers in the prior art, the purpose of the present invention is to provide a phase-change refrigeration high-power laser thermal management device and a laser system, which can reduce the temperature of the laser working medium by phase-change refrigeration. Through the work of the compressor, the heat is transferred from the low-temperature area to the high-temperature area, and then the cold and heat shunt structure is used to improve the convective heat exchange efficiency between the laser system and the outside world, reduce the volume, weight, power consumption and noise of the laser system, and improve the performance of the laser and the environment. adaptability

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