RU17602U1 - THERMOELECTRIC AIR COOLER - Google Patents

Description

The proposed utility model relates to environmentally friendly devices designed for cooling any elements in structures that are open from two or more sides, for example, for cooling electronic components in open power, control, and telephone exchange racks.

Currently, quite an urgent task is to develop an environmentally friendly air cooler, which transfers the flow of cold air from the cold source to the required distance from it and ensures high reliability during operation of the device as a whole.

The currently known air coolers used for cooling racks open on both sides are based on the use of fan systems that are attached to different elements of the racks located in different planes, which ensures circulation of refrigerant flows in the cavity of the rack housing. This type of device is generally low efficient.

For example, a radio-electronic unit (1) is known, comprising a housing with a mounting plate fixed therein for fastening the radio-electronic elements and a partition with a first fan integrated therein, while the partition divides the housing cavity into two compartments isolated from each other, in which placed radioelements, a heat exchanger located in the cavity of the housing, and a second fan installed in the first of the two openings of the housing, which serves to collect the refrigerant from the outside, while between the mounting plate and the surface Pusa are slits for the circulation of coolant flow in the cavity of the housing. In this device, the heat exchanger is a tube-shaped radiator sealed relative to the body cavity with internal ribs forming its internal channels, the outer surface of which is designed for attaching cooled electronic components. A second radiator is connected to the input end surface of the radiator, the output end surface of the radiator serving to exit the refrigerant is combined with the second opening of the housing. The tight connection of the mounting plate with the housing is carried out along its end wall. Between the bottom of the housing, its end wall bounding the second compartment, the side surface of the housing and the mounting plate, and between the outer surface of the radiator and the housing cover, slots are made with calculated cross-sectional areas.

The disadvantages of this device are as follows. This device is not environmentally friendly due to the use of gases that are harmful to the environment as refrigerants. In addition, this design is unreliable in operation.

thermal battery on thermal modules, radiators on cold and hot junctions, fans blowing cold and hot radiators.

The disadvantage of this device is its low efficiency due to the lack of the ability to divert the cold to the required distance, as well as insufficient reliability during its operation.

The problem to which the claimed utility model is directed is to create an inexpensive and environmentally friendly thermoelectric air cooler that provides high cooling efficiency of structures such as ATS racks due to design solutions that allow the cold air stream to be transferred to the required distance, while having high operational reliability.

In this case, the achievement of the following technical and economic results should be ensured:

-improvement of technical and operational characteristics;

- low manufacturing cost and fairly quick payback of the device;

-the ability to operate in a wide range of climatic conditions.

A thermoelectric air cooler is proposed, comprising a thermopile with thermomodules, cold and hot radiators and heat sink and heat absorption fans, a condensate collector and an air duct. The achievement of these technical results is ensured by the fact that the air cooler is equipped with a condensate collector and an air duct installed under a cold radiator, made, for example, in the form of a rectangular pipe, in one end of which there is a confuser with a heat absorption fan, and a collector with outlet fittings is installed in its other end with hoses, while the condensate collector is made in the form of a hollow, open on top form, repeating the inner surface of the duct, and placed inside the pipe, the wall of which is mounted an outlet for removing condensate, wherein the inner surface of the duct has a heat insulating jacket, for example, from penofol.

The inventive utility model can be recognized as meeting the requirements of novelty, since no analogue has been found characterized by features identical to all the essential features of the utility model.

The proposed utility model meets the requirements of industrial applicability, since it is manufactured and used (see attached recamp sheet), for example, in ATC racks.

The essence of the claimed device is illustrated by the following drawings:

-Fig. 1 is a general view of a thermoelectric air cooler (with a cut)

-Fig. 2 - the same section AA - (with increase);

-Fig. 3 - section BB;

-Fig 4 - the same, section bb (part of the section);

-Fig. 5 - condensate collector (side view);

-Fig. 5 - same, top view.

The thermoelectric air cooler contains (see Figs. 1-6) a thermopile 1 (see Fig. 2) with thermal modules 2, a cold radiator 3 (see Fig. 3) and a heat absorption fan 4, a hot radiator 5, and a heat transfer fan 6. In addition, the air cooler is equipped with an air duct 7 mounted under the cold radiator 3.

The air duct is made in the form of a rectangular pipe 8, in one end of which there is a confuser 9 about a heat absorption fan 4, and in its other end there is a collector 10 with outlet fittings 11 to which hoses 12 are connected.

Also, the air cooler is equipped with a condensate collector 13, made in the form of a thin-walled hollow, open on top form (see Fig. 5, 6), repeating the inner surface of the duct (pipe 8), and placed inside the pipe 8, in the wall of which there is a pipe 15 for condensate drain. The pipe 15 is installed in the holes 16 combined during assembly, made in the condensate collector 13 and the pipe 8.

The inner surface of the duct 7 has a heat-insulating jacket 14, made, for example, of penofol.

The proposed thermoelectric air cooler operates as follows (see Fig. 1 - 6). The principle of operation of the air cooler is based on the use of the Peltier effect, when when passing direct current through the contacts of the two dissimilar substances (metals, semiconductors) that make up each thermal module 2, cooling occurs on one of the contacts (heat absorption), and heat is released on the other. The air cooler is fixed on a rack with electronic blocks, for example, on a telephone exchange (not shown in the figure) and the hoses 12 are directed inside the racks. Then, by switching on the Network toggle switch (not shown in Fig.), Voltage is applied to the thermal modules 2 of the thermal battery 1 and the fans 5 and 6. From this moment, the process of cooling the cold surfaces of the thermal modules 2 and fins of the cold radiator 3 starts. At the same time, the heat absorption fan 4 captures the ambient air and through the confuser 9 directs it into the duct 7, in which the flow of supplied air is cooled when it moves along the cold surfaces of the fins of the cold radiator 3 (Fig. 1, 3, 4). The resulting flow of cold air from the duct 7 is directed through fittings 11 with hoses 12 (see Fig. 4) inside the racks to the electronic units located in the racks of the PBX.

The insignificant heat released simultaneously with the cooling process from the hot surfaces of the thermal modules 2, transferred to the hot radiator 5, is removed and dissipated in the external environment using a fan system 6 (or one powerful fan).

Thanks to the proposed design of the air cooler equipped with an air duct, the cold air flow is transferred to the required distance, and due to the presence of a condensate collector, the service life and reliability of the device are increased.

From the above, the following advantages of the proposed thermoelectric air cooler are obvious:

- the design is characterized by improved technical and operational characteristics;

- thermal modules are used to ensure the environmental friendliness of the device;

-provided high cooling efficiency of structures such as ATS racks;

-constructive solution made it possible to operate the device in a wide range of climatic conditions.

SOURCES OF INFORMATION USED IN THE DESCRIPTION OF THE INVENTION:

1.Radio-electronic unit.

Utility Model Certificate No. 11947, M.cl. H 05 K / 2o, publ. 11/16/1999; Bull. PM software No. 11, 1999.

2. Thermoelectric cooling device.

Utility Model Certificate No. 9511, M.cl. F 25 V Vo2, publ. 03/16/99. Bull. PM PO, No. 3, 1999 (PROTOTYPE).

Applicant: Authors:

With Didenko I.B. Open Joint-Stock Company P1 General Director of OJSC RIF // V- / J 5 OB A.S.

Kolesnikov A.I.

Claims (1)

A thermoelectric air cooler containing a thermopile with thermomodules, cold and hot radiators and heat sink and heat absorption fans, characterized in that it is equipped with a condensate collector and an air duct installed under the cold radiator, made in the form, for example, of a rectangular pipe, in one end of which there is a confuser with a heat absorption fan, and in its other end there is a collector with outlet fittings with hoses, while the condensate collector is made in the form of a hollow, open from above form, toryayuschey inner surface of the duct and arranged within said tube, which is mounted in the wall of pipe for condensate, wherein the inner surface of the duct has a heat insulating jacket, for example, from penofol.