SU951028A1 - Unit for securing thermoelectric module - Google Patents

Description

This invention relates to thermoelectric, cooling device fasteners that are used in various areas of INDUSTRY.

A thermoelectric cooler is known that contains thermoelectric batteries, the cold junctions of which are adjacent to a cooled source, which is located between the junction points of these batteries, on the hot junction side of which are supporting plates fitted with lugs under the clamping elements that are installed in the holes of the lugs tlj.

The disadvantage of the refrigerator is that it is difficult to assemble it because of the need to center the support plates, which complicates the assembly and disassembly work. in addition, the preload of the thermoelements of each of the batteries is not regulated; It is possible to apply a large amount of force when the support plates are tightened with tightening elements, which reduces the reliability of the refrigerator.

There are known devices for mounting a thermoelectric module equipped with a heat exchanger, comprising a base with a central opening under

a heat generating element and bearing racks attached to the heat exchanger, mounted equidistantly relative to opening C2}.

A disadvantage of the known devices, is the complexity of the design and lack of reliability, since the heat exchangers of the modules are attached to the supporting racks rigidly

10 lugs attached to them, the holes of which are provided with rez.by, respectively. threading racks that are attached to the base.

Such a rigid connection of thermoelectric fastener elements: the module complicates the assembly and disassembly work, reduces the reliability of the device in which the module is installed, since the thermal elements of the module are not subjected to longitudinal compression. In addition, in this device only one module with a heat exchanger can be connected to one rack.

25

The purpose of the invention is to facilitate installation and dismantling and increase the reliability of the device for mounting a thermoelectric module.

Claims (2)

The goal is achieved by the fact that in a device for fastening a thermoelectric module equipped with a heat exchanger, containing a base with a central hole for the heat emission element, and bearing racks attached to the heat exchanger, equidistant with respect to the hole a mongral prism with spikes located at a specified pitch along the bars and sealing inserts having grooves under the spikes of the uprights and notches on the side facing the central hole, and us facing the heat exchanger. FIG. 1 shows the proposed device for mounting a thermoelectric module in isometry; It is an isometric description of a device for fastening a thermoelectric module with thermoelectric modules attached to it5 and placed between the liners of the heat emitted by: yogdim element. The device comprises a base 1 with a central hole 2 for heat releasing element 3 with channels 4 supporting columns 5, provided with studs 6, sealing inserts 7 with grooves 8 under studs 6 and recesses 9 on the side facing the hole 2, as well as notches 10 The heat exchanger 11 of the module 12 is attached to the spike with screws 14, the insert 7c of the heat-generating element 3 forms a bed 15 for installing the thermoelectric battery 16 of the thermoelectric mode l 12, and between the thermoelectric battery 16 and the heat-generating element em. 3 placed organically organic thermal material 17 (the basis of silicon, napol. Nor tel to aU 45 k). The depth of the lodgement 15 is greater than the height of the thermoelectric battery by an amount equal to the thickness of the compressed heat-conducting material 17, and the compressive force of the heat-conducting material 17 is designed to compensate for the thermal loads acting on the thermoelectric battery 16 of the module 12. Dimples 10 in the liners are used for hermetic laying of power supply leads 18 of the power supply batteries 16, to the racks 5 are attached circuit boards 19 for switching the batteries into an electrical circuit, equipped with petals 20 and covers 21. The thermoelectric module is fixed with the following manner. Thermoelectric module 12 is laid with thermoelectric battery 16 into cradle 15, where by means of thermally conductive material 17 is attached to heat release element 3. Current supply leads 18 of power supply are placed in recesses 10 and connected to lobes 20 of circuit board 19. Module 12 is fastened with screws 14 to shields 6 The racks 5, then the boards 19 are closed with the covers 21. When the power is supplied from the electric circuit to the thermoelectric battery 16 of the module 12, heat is absorbed on one side of the battery 16 and released on the other side. The coolant that circulates through channels 4j, depending on the battery mode, i.e. depending on the polarity of the current leads 18, it will either be heated or cooled. Inserts 7 while preventing t heat loss to the environment. from the element, since they are made of thermally insulating material, the power consumption for the operation of the module or modules can be reduced, the number of which can be adjustable by making plugs on the supporting racks. During the operation of thermoelectric modules, thermal expansion and contraction occur due to the temperature difference between the cold and hot sides of the thermopile of the modules. The elastic thermally conductive material allows to compensate for thermal changes in the thermopile height and ensures a constant thermal contact of the thermopile with the heat-generating element along the entire length of the latter, along the length of the supporting racks. . Apparatus for fixing a thermoelectric module equipped with a heat exchanger, comprising: a base with a central hole for a heat generating element and carrier racks attached to the heat and binder, installed equidistant relative to the hole, characterized in that, in order to facilitate assembly and disassembly, and to increase reliability, .of the racks made in the form of a rectangular prism, equipped with spikes, arranged with a given step along the racks, with sealing inserts having pa s under the spikes along the uprights, and the recess on the side facing the central opening and on the side facing the heat exchanger. Sources of information taken into account in the examination 1.Patent of Germany No. 1231730, class 17-20, published. 1968. 2. USSR author's certificate number 344545, cl. F 25 B 21/02, 1971.