A phase change heat extraction system

Abstract

The invention relates to the technical field of refrigeration, and aims at providing a novel phase change heat getting system good in cooling effect. According to the technical scheme, the novel phasechange heat getting system comprises a phase change heat getting loop allowing a phase change medium to circularly flow and an active refrigeration loop allowing a refrigerant to circularly flow. Thephase change heat getting loop and the active refrigeration loop are intersected into the same heat exchanger, the phase change medium and the refrigerant are subjected to heat exchange in the heat exchanger, and the system has good cooling effect and other electricity devices with high heat power.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a phase change heat extraction system. Background technique [0002] At present, most of the heat dissipation of LED lighting systems on the market is to reduce the temperature of the chip through natural convection. For natural convection heat dissipation, there are currently two main methods: one is that the LED chip is directly bonded to the heat dissipation fins. , the heat is conducted to the fins through the solid heat, and then the heat is released to the environment through the heat exchange between the fin surface and the air. Second, for occasions where the LED power is large, the limited heat exchange area can no longer completely take away the heat of the chip, which will cause the LED chip to overheat, and the life of the chip will be greatly reduced or damaged. thermal area. Although the above two heat dissipation methods do not consume additional cooling po...

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Problems solved by technology

Although the above two heat dissipation methods do not consume additional cooling power, the disadvantages are: the minimum temperature of the LED chip is always higher than the ambient temperature, and often cannot reach the optimum working temperature. The method is also not suitable for ultra-high-power LED lighting lamps, which cannot achieve the proper heat dissipation effect and shorten the service life and lighting effect of LEDs.

And the leakage of water will cause fatal damage to components such as LED chips and power supplies

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