RU209985U1 - Device for cooling microelectronics products - Google Patents

Abstract

The utility model relates to the electrical engineering industry and can be used in high-speed devices of information systems for cooling microelectronic products inside servers by means of an airflow control circuit solution. The purpose of the development of the proposed technical solution is to expand the functionality of the device for cooling microelectronic products, in particular, the possibility of using it in small spaces with the exception of the placement of related additional installations. The technical task of the claimed utility model is to create such a device that is easy to use, has low energy and material consumption and has technically justified relatively small dimensions in the conditions of the need to place several video cards inside the case. The technical result of the claimed utility model is to increase the efficiency and reliability, as well as the convenience of placing all the components of the device in a single housing. The technical result is achieved by the fact that the device includes all the elements necessary for cooling. The set goal is achieved, and the technical problem is solved by the fact that the device for cooling microelectronic products includes a housing, air supply devices and air movers, and the housing is made rectangular with separation of the flows of the cold and hot aisle, through the internal space of the housing chamber for collecting hot air from heating elements microelectronic products and air movers in the form of case fans built into the side wall of the case during blowing operation; and supply of cold air to the heating elements of microelectronics products and air movers in the form of case fans built into the case in its central part during blowing operation, moreover, the case contains a motherboard with a processor, a data storage and processing device, a power supply unit and wiring to video cards, moreover, the video cards are located horizontally and their own fans are directed inside the chamber space of the case, while in the case there is an additional device for regulating the air flow on the case fans, depending on the ambient temperature. Depending on the number of video cards, case fans are installed in the case, there is one fan for each pair of video cards.

Description

The technical solution of the device for cooling microelectronic products claimed as a utility model belongs to the electrical engineering industry and can be used in high-speed devices of information systems for cooling microelectronic products inside servers by means of an airflow control circuit solution with the placement of several video cards inside one metal case and with separation of hot and cold corridors.

Modern hot and cold air isolation systems such as HACS (Hot Aisle Containment System) or CACS (Cold Aisle Containment System) are designed to increase the efficiency of traditional cooling systems in electronics. The data center system (DPC) uses the placement of racks with equipment, the reverse side of which, blowing out hot air, is isolated from the side to which cold air is supplied. As a rule, a HACS type system is used in large purpose-built data centers such as large computer rooms and requires the development of special, in each case, large prefabricated air ventilation ducts. In some cases, these can be purpose-built buildings that house cooling systems that work efficiently with large volumes of air masses, are material-intensive and energy-intensive.

When using compact electronic components, the task of developing a cooling system is solved in other ways. Hot aisle containment and hot air extraction is a top priority for an electronics system.

A technical solution for an air conditioning device for cooling air in a cabinet for electronic devices is known according to the RF patent for invention No. 2515530 dated 19.09.2011, IPC: G12B 15/00; H05K 7/20; G06F 1/20, published on March 27, 2013. The air conditioning device includes a housing with a first side and a second side opposite the first side, an air supply device and a heat exchanger, while the air supply device sucks in air from the first side, directs it through the heat exchanger to the second side and exhausts air in the radial direction from the second side, and at the same time the heat exchanger is connected to an external cooling device or to an internal cooling device for supplying a cooled cooling medium to the heat exchanger, and the air supply device is made in the form of a radial fan that exits the second side of the air conditioning device and is located with the possibility of outputting the axial flow of air entering the air conditioning device in the radial direction parallel to the boundary surface of the second side. As indicated in the description of the analogue, in one preferred embodiment of the invention, the air conditioning device comprises on the second side a protruding frame in which the air supply device is installed. In one of the analogous embodiments, it is shown that the air conditioning device according to the invention is preferably configured to be installed between or next to electronics cabinets, while the front outlet area with side openings is clearly spaced away from the front of the electronics cabinets, therefore air escaping through the holes in the grille may flow along the front of the electronics cabinets and stick to it. This analog is an autonomous design of the air conditioning device, however, the purpose of the analog according to the patent of the Russian Federation No. 2515530 differs significantly from the claimed technical solution. In this analogue, a HACS type system has been developed, which is used for large computer rooms. However, the general principles of building an air conditioning system for cooling air in a cabinet for electronic devices are largely similar to the claimed utility model.

The common features of the analogue according to the patent of the Russian Federation No. 2515530 and the proposed technical solution are the presence of a housing, a device for supplying air and a fan.

However, the use of an analogue technical solution according to RF patent No. 2515530 entails the complexity and duration of the conditioning process. The replacement of numerous additional elements of the device complicates the installation-analogue. Thus, the analogue heat exchanger contains several individually controlled segments located at different heights, as well as at least one pipeline connecting the heat exchanger to the central cooling device. The analogue is also complicated by the admitted possibility of regulating the volumetric air flow generated by the air supply device, and this regulation can be individual for each air supply device, and the measured temperatures by special temperature sensors are used to individually control the volumetric air flows and / or segments of the heat exchanger.

In contrast to the analog according to RF patent No. 2515530, the claimed utility model is more compact and is designed to cool microelectronic products when several video cards are placed inside one metal case with separation of hot and cold aisles flows, and fans are located in the case wall, from which hot air is taken, generated at work, and not radially, as in the analogue. These factors lead to the simplification and cheapening of the cooling process.

A technical solution for a housing for a computing device of arbitrary shape is known according to the patent of Ukraine for a useful model No. 125662 (PROTOTYPE) dated 11.08.2017, IPC: G06F 1/20; H05K 7/20 published on 05/25/2018 The prototype device is a case with vents for taking in cold outside air and removing heated air from the case, which contains at least one computing device, which has several compartments, at least two of which are adjacent or interconnected by an air duct, which connected to the outer space, or to the second compartments, which in turn are connected to the outer space by vents or air ducts of arbitrary shape and size. The cooled computing device is installed at the boundary of these two compartments in such a way that the flow of cold air from the outside, moving due to the convection movement of the coolant and due to the air movers that are installed on the computing device, from one compartment through the vent enters the heating element of the computing device, heats up and the air heated after that enters the second compartment, from which it is discharged through the vent hole.

The prototype device is closest to the claimed technical solution.

Common features according to the patent of Ukraine for utility model No. 125662 and the proposed technical solution are the presence of a housing, as well as a system for supplying air and special air movers.

The disadvantage is that in the technical solution of the prototype there is no possibility of placing in a single housing control systems, storage, processing and data exchange and power supply, designed for efficient operation of computing devices (video cards).

The difference from the prototype is that in the claimed device, the housing chamber space itself acts as a ventilation pipe and therefore does not require an additional ventilation system for supplying cold air. The housing in the proposed solution is a device with separation of the flows of the cold and hot aisle and in the internal space of the housing it is possible to install power supply, control, monitoring, storage, processing and data exchange systems.

The technical problem to be solved by the claimed utility model is to prevent the inconvenience of operating the device. The claimed utility model has been developed in order to solve the above problem and increase the cooling efficiency, increase the uninterrupted operation.

The purpose of the development of the proposed technical solution is to expand the functionality of the device for cooling microelectronic products, in particular, the possibility of using it in small spaces with the exception of the placement of related additional installations.

The technical task of the claimed utility model is to create such a device that is easy to use, has low energy and material consumption and has technically justified relatively small dimensions in the conditions of the need to place several video cards inside the case.

The technical result of the claimed utility model is to increase the efficiency and reliability, as well as the convenience of placing all the components of the device in a single housing. The technical result is achieved by the fact that the device includes all the elements necessary for cooling.

As a result of applying the claimed technical solution, the heating temperature of the processor chip and RAM of each video card, as well as power circuits, decreases by 10-15 degrees Celsius. This increases the stability of the equipment in comparison with the operation of regular cooling systems. Such cooling has a positive effect on the duration of operation of video cards and other electronic components, increasing the duration of their operation due to better cooling than in known systems.

In the claimed technical solution, the task of improving the ease of use is solved not with the help of air ducts, as in the prototype, but by using a different cooling principle. Typically, servers use longitudinal placement of video cards in the case, not isolated from each other. In the proposed solution, video cards are arranged horizontally and their own fans are directed inside the box, from which hot air generated during their operation is taken, or air, on the contrary, is pushed out through the radiators of these video cards, thereby also cooling them.

Depending on the location of the case fans, the operation of the device and the functional purpose of the case chamber space changes as follows: when the case fans are located in the side wall of the case, they work for blowing out; ; when case fans are located inside the case on the side of the combination of video cards, they work for blowing, cold air is supplied to the chamber, which heats up, passing through the heating elements of microelectronics products, and is removed from the cards in a passive way.

In the process of solving a technical problem due to the ease of installation and operation of the proposed device, several additional utilitarian tasks are simultaneously solved at once:

by turning the case fans, cooling can occur both when air is blown out of the case, and by turning the fans, you can blow through the video cards with air pressure, and the air pressure passes through the radiator located behind the fan of the video cards;

achieving the possibility of energy saving by controlling the rotation of the fan speed depending on the ambient temperature;

Own fans on video cards may not be used under favorable temperature conditions when case fans are blowing in, and are forcibly turned off when case fans are blowing out, which also creates opportunities for energy saving.

Such technical results in the prototype are not achieved. The listed additional technical problems are solved by using easy-to-use, cheaper to manufacture parts of the proposed device.

The essence of the proposed technical solution is that the device for cooling microelectronic products includes a housing, air supply devices and air movers, and the housing is made rectangular with separation of the flows of the cold and hot aisle, through the internal space of the housing chamber for collecting hot air from the heating elements of microelectronics products and air movers in the form of case fans built into the side wall of the case when blowing, and supplying cold air from the outside into the chamber space using case fans built into the case in its central part when blowing, and the case houses a motherboard with processor, data storage and processing device, power supplies and wiring to video cards, moreover, video cards are located horizontally and their own fans are directed inside the housing chamber space for collecting hot air / supplying cold air, depending distance from the place of installation of case fans, while in the case there is an additional device for controlling the air flow on the fans located in the side wall of the case, depending on the ambient temperature. Depending on the number of video cards, case fans are installed in the case, there is one fan for each pair of video cards. For example, in the case of four, six or eight video cards, two, three or four, respectively, case fans will be installed.

The use of the above configuration of the case with microelectronic devices and ventilation devices placed in it makes it possible to facilitate and speed up the cooling process, as well as improve the characteristics of the cooled devices and increase the duration of their uninterrupted operation. The advantage of the proposed technical solution is the versatility of the package configuration, the ability to accommodate the required number of video cards while maintaining stability, as well as the ability to adjust the ventilation of the electronic components included in the device in accordance with the specific task being solved.

Case for a computing device of a rectangular shape, with a special compartment (chamber) for collecting hot air entering the chamber from the heating elements of computing devices (four, six or eight video cards) and removing this hot air using case fans when they are located on the side wall and blowing work (two, three or four, respectively, to the number of video cards). A case for a computing device of a rectangular shape, with a special compartment (chamber) for supplying cold air entering the chamber from the outside from case fans located in the central wall and working for blowing, passing through the heating elements of computing devices (four, six or eight video cards) and removing hot air in a passive manner.

Computing devices (video cards) are located in two rows to each other and are located on the border between the cold and hot corridors. In the claimed case, when the case fans are blown out, the HACS (Hot Aisle Containment System) hot aisle isolation system is used, which is used when building a data center, when the hot aisle is isolated, and the rest of the space is used to supply cold air, and the case does not require the installation of additional ventilation systems . When case fans are blown in, the CACS (Cold Aisle Containment System) cold aisle isolation system is used, which is used when building a data center, when a cold aisle is isolated, and the rest of the space is a large hot air ventilation duct, and in this embodiment, the case also does not require the installation of additional ventilation systems.

Thus, a reduction in the heating temperature of the video card processor chip, video card RAM, and power circuits by 10-15°C is achieved. This increases the stability of the equipment in comparison with the operation of regular cooling systems.

The claimed technical solution is illustrated by drawings:

Fig. 1. The design of the device for cooling microelectronics products by blowing in two projections with case fans located in the side wall of the case, where:

1 - video card;

2 - fan;

3 - power supply;

4 - hot aisle chamber.

Fig. 2. Scheme of the passage of air flows in the body for blowing, in two projections.

Fig. Fig. 3. The design of the device for cooling microelectronics products for blowing in two projections with the location of case fans inside the case on the side of the combination of video cards, where:

1 - video card;

2 - fan;

3 - power supply;

4 - hot aisle chamber.

Fig. 4 - Scheme of the passage of air flows in the housing for blowing, in two projections.

In the drawings of FIG. 1-2, for ease of illustration, shows a variant without housing covers.

The design of the device for cooling products of microelectronics (figure 1) consists of a housing body, in which are located: fans 2, pumping out or supplying air; video cards 1, located with their own fans of each video card down into the receiving device - the case; motherboard with a processor on it; power supply 3; wiring for video cards 1. Also in this case there is an additional device for collecting and processing data, as well as a device that, depending on the ambient temperature, is able to regulate the air flow on the fans, as a result of which each fan can spin both slowly and at maximum speed rotation.

The scheme of the passage of air flows in the housing, in two projections, is shown in the sketches of Fig.2 and 4, when working, respectively, for blowing and blowing air. Diagrams of Fig. 2 and 4 illustrate the operation of the device in dynamics in relation to the location of the hot and cold aisles during operation for blowing and blowing. The space of the hot aisle 4 is shown in the diagrams of FIG. 2 and 4 with red arrows, the cold aisle is marked with blue arrows.

The operation of the device in dynamics is described for the case of blowing operation.

The claimed device works as follows.

Inside the case, video cards 1 lie on the platforms, cooling is achieved by the fact that fans 2 draw air from them. Air from the environment enters the case through the fins and technological holes in the video cards, cools these video cards 1 with the air flow created by the fans 2. Own fans on the video cards in this case are forcibly turned off, in some cases they are removed altogether, which is another advantage the claimed placement of the device. Since in the same case there may be a device (not shown in the drawing), which, depending on the ambient temperature, regulates the air flow on the fans 2 built into the case wall, each fan 2 can spin both slowly and at maximum speed. Moreover, in this case, the regulation of the rotation of fans 2 depends not only on the ambient temperature, but also on the temperature of the video cards 1 themselves - if they heat up more, the air flow is supplied more strongly.

Compared with the known, the proposed design of the device for cooling microelectronics products has versatility. The scope of the claimed design due to the compactness and ease of both manufacture and operation is much wider than that of known analogues. The inventive design makes it possible to comprehensively solve the problems of cooling microelectronic products.

The possibility of multiple reproduction of the claimed design results from the method of its industrial configuration, which allows you to reproduce the claimed device for cooling microelectronic products on an industrial scale.

Such a combination of versatility, achievement of the possibility of multiple reproduction with relative ease of manufacture in the prototype is not achieved.

Based on the foregoing, we can conclude that the proposed technical solution meets the criteria of "novelty" and "industrial applicability".

Claims (2)

1. A device for cooling microelectronics products, including a case with a motherboard, a power supply and wiring to video cards, as well as air movers, characterized in that the case is made rectangular to collect hot air from heating elements of microelectronics products with separation of cold and hot aisle flows by means of the internal space of the case chamber and air movers in the form of case fans, with video cards arranged horizontally, hot air is taken from the case space, while the case additionally houses an air flow control device on the case fans, depending on the ambient temperature. 2. A device for cooling microelectronic products according to claim 1, characterized in that case fans are installed in the case depending on the number of video cards, one fan for each pair of video cards.

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