RU2565523C2 - Cooling device based on nanofilm thermal modules - Google Patents

Abstract

FIELD: heating.

SUBSTANCE: invention relates to cooling and heat removal systems, for example to cooling devices of electronic components. A thermoelectric device is made in the form of a multilayered thermal module, in which as semiconductor branches of p type and n type there chosen are such materials that the current flowing from p type to n type will create radiation, and when the current flows from n type to p type, heat energy will be absorbed according to Peltier effect; with that, each layer of the thermal module stage is made in the form of a nanofilm of a tubular structure, in which parasitic heat releases will be almost reduced to zero due to lower ohmic resistance of materials of the thermal module at tunnelling of electrons through junctions.

EFFECT: improvement of efficiency of a cooling system.

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Description

The invention relates to cooling and heat removal systems, for example, to devices for cooling electronic components.

There is a method of removing heat from heat-generating electronic components in the form of radiation [1], which uses LED emitters designed to convert heat energy received from the cold junctions of the thermal module in the form of electric current into radiation energy that removes heat from the cooled device to the environment.

The purpose of the invention is to increase the efficiency of the cooling system.

To achieve the objective of the invention, a thermoelectric device consisting of tubular nanofilm thermomodules with alternating cooling and emitting pn junctions is developed.

Figure 1 shows the design of a nanofilm multilayer cascade light-emitting thermal module.

The design of the thermoelectric device is a multilayer (cascade) thermomodule in the form of a tubular structure consisting of thermomodules made in the form of nanofilms in which such materials are selected as semiconductor branches of p-type 1 and n-type 2 that the current flowing from p The n-type will generate radiation, and when current flows from the n-type to the p-type, thermal energy will be absorbed in accordance with the Peltier effect. Power is supplied through a positive metal mirror electrode 3 and a negative transparent electrode 4 by direct current.

As materials for the manufacture of p-type and n-type thermomodule branches, the same materials are used from which the LEDs are made, namely gallium phosphide (GaP), gallium nitide (GaN), silicon carbide (SiC), etc.

The thickness of a thermomodule made in the form of a nanofilm is about 10 ^-8 m.This thickness of a thermomodule allows one to practically eliminate the Joule heat release (Joule effect), since the mean free path of an electron will be less than the thickness of a nanofilm (electrons will tunnel). As a result, spurious heat generation due to a decrease in the ohmic resistance of the materials of the thermal module will be practically reduced to zero and only the cooling Peltier effect and the emitting LED effect will remain.

Another important and useful property of nanofilms is high transparency. Even if you make the device from a large number of layers - thermal modules made in the form of nanofilms, transparency will remain. High transparency allows you to effectively remove heat in the form of radiation. In addition, nanofilms have ideal conductive heat transfer characteristics due to their small thickness. This allows all n-p junctions in a multilayer thermal module to simultaneously absorb heat.

The use of the device in cooling systems will ensure high efficiency of heat removal from the cooled components of electronic equipment until the appearance of a superconducting effect when cooling to 0 K. In figure 1, the central metal rod will be superconducting. Based on nanofilm thermal modules, it is possible to expand the range of electronic components for cryoelectronics without the use of bulky cooling devices while achieving minimal energy costs.

Literature

1. The method of heat dissipation from heat-generating electronic components in the form of radiation: US Pat. 2405230 ROS. Federation: IPC G06F 1/20 / Ismailov T.A., Gadzhiev H.M., Gadzhieva S.M., Nezhvedilov T.D., Chelushkina T.A .; applicant and patent holder GOU VPO "Dagestan State Technical University". - No. 2009120686/09; declared 06/01/2009, publ. 11/27/2010, Bull. No. 33.

Claims (1)

A cooling device based on nanofilm thermal modules made in the form of a multilayer thermal module in which such materials are chosen as p-type and n-type semiconductor branches that the current flowing from p- to n-type will generate radiation, and when current flows from n - the p-type will be absorbed by thermal energy in accordance with the Peltier effect, characterized in that each layer of the cascade of the thermal module is made in the form of a nanofilm of a tubular structure in which spurious heat will be practically reduced to zero due to a decrease in the ohmic resistance of the thermomodule materials during electron tunneling through the transitions.