An ultrasonic pulsating heat pipe radiator with thermoelectric power generation drive and temperature warning

Abstract

The invention discloses an ultrasonic pulsating heat pipe radiator with temperature difference power generation driving and temperature early warning functions. The ultrasonic pulsating heat pipe radiator comprises pulsating heat pipes, piezoelectric ceramic sheets and an ultrasonic generator, wherein the piezoelectric ceramic sheets are arranged on the surfaces of the pulsating heat pipes, the ultrasonic pulsating heat pipe radiator further comprises a thermoelectric power generation sheet and a DC-DC converter, and heat conduction plates, an indicator light circuit and thermoelectric power generation sheet is electrically connected with the ultrasonic generator through DC-DC converter; evaporation sections of the pulsating heat pipes are embedded in the heat conduction plates, one surfaces of the heat conduction plates are attached to a component to be cooled, the other surfaces of the heat conduction plates are attached to the thermoelectric power generation sheet, the other surfaceof the thermoelectric power generation sheet is in contact with the air, and an electromagnetic relay of the indicator light circuit is electrically connected with the thermoelectric power generationsheet and can be used for early warning the junction temperature of the component so as to protect the component. Temperature difference power generation is carried out by using the pulsating heat pipes, the piezoelectric ceramic sheets are driven to work, the cavitation effect generated by the ultrasonic waves emitted by the piezoelectric ceramic can strengthen the heat transfer performance of the pulsating heat pipes, due to the fact that the thermoelectric power generation is self-supplied, and therefore, the ultrasonic pulsating heat pipe radiator can be flexibly suitable for occasions ofheat dissipation of various semiconductor components.

Description

technical field [0001] The invention belongs to the technical field of pulsating heat pipes, in particular to a pulsating heat pipe radiator with a thermoelectric power generation module, a temperature early warning module and an ultrasonic generation module. Background technique [0002] With the continuous development of semiconductor technology, both semiconductor chips and semiconductor power devices tend to be highly integrated, resulting in a gradual increase in power density. The increase in power density causes a substantial increase in the heat flux density of components. In order to ensure the normal operation of the components, it is necessary to ensure that the temperature of the components is within a certain range, which puts forward higher requirements for the heat dissipation means. As a high-efficiency radiator, pulsating heat pipes have attracted extensive attention due to their advantages of simple structure, low cost, good adaptability and high heat tran...

AI Technical Summary

Problems solved by technology

Both of these designs use pulsating heat pipes to recover solar heat collection energy and waste heat to provide energy sources for thermoelectric power generation. The core essence is still thermoelectric power generation devices, and the heat transfer performance of pulsating heat pipes has not been enhanced.

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