SU1739523A1 - Rack for radio electronic equipment - Google Patents

Abstract

The invention relates to electronics and computing and can be used in blocks of electronic equipment that use a self-contained forced cooling system during operation. The rack includes a housing 1, blocks 2, ventilation blocks 3 with an additional wall 4, electric fans 5. Windows 4 are provided with windows, and holes 8 are made in the side wall 6 for supplying cooling air. Fans 5 are fixed to the wall and from the cavity 9 with complete overlapping of windows. Blocks 2 are mounted on the walls 4 of ventilating blocks 3 3 or. X | 8, SL to CO

Description

1

The invention relates to computing and electronics, in particular to devices with electronic units using a compulsory autonomous cooling system.

A radio-electronic unit is known, comprising a housing, the cavity of which is in communication with the environment, installed there with the formation of more heat-loaded and less heat-loaded sub-blocks, placed above the other section, above the more heat-loaded blocks and an inclined partition located between the section subblocks, department of upper and lower subunits.

A disadvantage of the known technical solutions is the fact that the cooling air passes through all the subunits without mixing in fresh cold portions of cooling air, which requires high performance and static pressure from the fan and leads to a large flow of cooling air, large mass and dimensions of the fan.

The closest in technical essence to the proposed technical solution is a rack of electronic equipment, comprising a housing with inlet and outlet windows, electronic and ventilation units installed in the housing, located between the electronic units, while the input and output windows are located below the electronic ones. blocks and above them with the formation of a common air duct between them, in which ventilation and electronic blocks are installed, and in the case under the electronic blocks are made from versti.

However, in this rack, making holes for additional supply of cooling air under the fan blocks in the rack housing and the presence of independent chambers to form the air flow requires additional volumes, which increases the height of the rack, the dimensions and weight of the frame, and, as a result, increases solution generally reduces layout density

The purpose of the invention is to increase the density of the arrangement and improve the overall mass performance.

This goal is achieved by tagging a chassis in an electronic equipment rack containing a housing with openings for holes. approach of cooling air; installation of electronic equipment in it, ventilation blocks placed between them in the form of electric fans installed in individual housings with side walls hermetically interconnected, air ducts,

located one above the other and formed by the walls of the case, with inlet and outlet sections located one opposite the other, respectively above and below the electronic equipment, in

0 which have ventilation units and electronic equipment units, the casing of each ventilation unit is provided with an additional wall with windows located between the casing of the corresponding ventilation unit and the electronic equipment unit connected to it and hermetically connected to the side walls of the ventilation unit above, and fan coil

0 are fixed on the above-mentioned additional wall with overlapping windows, and the electronic equipment units are installed on the additional walls of the ventilation units, and the openings for supplying

5 cooling air is placed on the side walls of the covers of the ventilation units.

Yafig. 1 shows the rack of electronic equipment, axonometrics; in fig.

0 2 - stand diagram, section; in fig. 3 - design of the ventilation unit.

Rack of electronic equipment includes a housing 1; units 2 with electronic equipment; ventilation units 3

5 each with (front panel) an additional wall 4, electric fans 5 and side walls 6. In the front panel 4 there are windows 7 for supplying cooling air to units 2 with electronic equipment, and in the side wall 6 (front) there are holes 8 for the supply of cooling air. The internal working cavity 9 of the ventilation unit 3 (the cavity chamber side walls 6 and the front panel 4) is used as an air formation chamber (flow). Fans 5 are mounted on the front panel 4 on the side of cavity 9 with full overlapping of windows 7. Radio-electronic units 2

0 are mounted on their respective front panels 4 (additional walls) of the ventilation units 3.

The device works as follows.

5 When electric fans 5 are turned on, vacuum is created in the lower unit with electronic equipment and, consequently, the necessary differential pressure for circulating cooling air. Passing the lower electronic unit 2, the heated air in the cavity 9 of the ventilation unit 3 is mixed with the ambient air drawn in through the openings 8 and its temperature is somewhat reduced. Then the air through the next electronic unit again enters the cavity 9 of the next ventilation unit, where some discharge is created by its electric fans, since the previous electronic unit has a certain amount of hydraulic resistance. The ambient air is also sucked into the cavity 9 through the openings 8 of the wall 6 and is mixed with the heated air, lowering its temperature. In the following, the process is repeated.

The presence of the front panel (additional wall) 4, its hermetic connection with the walls 6, the presence of windows 7, and the installation of fans 5 on the front panel 4 with complete overlapping of these windows 7 allows the cavity 9 of the ventilation units 3 to be used as a chamber to form a cooling air environment for their respective blocks 2. Last and making holes 8 for supplying cooling air to the external environment in the walls 6 of the ventilation blocks 3 allows to reduce the height of the rack and its weight, to increase the density of the layout due to not osredstvennogo abutment of electronic components to the vent 3 in an assembled rack.

The implementation of the rack of electronic equipment on the proposed technical solution in relation to the prototype will allow you to: reduce the height of the rack; reduce the weight of the rack; increase the density of the layout by 15-20%.

Claims (1)

Invention Formula Rack of electronic equipment containing the case installed in it blocks of electronic equipment, located between them, ventilation blocks with openings for supplying cooling air in the form of electric fans installed in individual covers with hermetically interconnected side walls, and formed by the walls of the housing and arranged on the floor, one by one, with inlet and outlet sections, opposite each other respectively above and below the electronic equipment, air ducts, in which the ventilation units and electronic equipment are installed, characterized by that, in order to increase the layout density and improve the mass-dimensional characteristics, the casing of each ventilation unit is provided with an additional wall with windows located between the casing of the corresponding ventilation unit and its adjacent electronic equipment unit and hermetically connected to the side walls of the above-mentioned ventilation unit , and electric fans mounted on the above-mentioned additional walls with overlapping of their windows, and the electronic equipment units are installed on the additional walls of the respective ventilation units, and the cooling air inlets are located on the side walls of the covers of the ventilation units.