Server cabinet and data center cooling system

Abstract

The embodiment of the utility model provides a server cabinet and a data center cooling system, and the server cabinet comprises a cabinet body; a frame body for placing a server is arranged in the cabinet body; the cooling assembly is arranged in the cabinet body and is located at the lower part of the frame body; the cooling assembly comprises a cooling shell, a cooling pipeline, fins and a fan, wherein the cooling pipeline, the fins and the fan are arranged in the cooling shell. One end of the cooling shell is provided with an air inlet, and the other end is provided with an air outlet; the fan is located on one side of the air outlet. The air supply direction of the fan faces the air outlet. The fins and the cooling pipeline are located on one side of the air inlet. The cooling pipeline comprises straight pipe sections and bent pipe sections, and the straight pipe sections and the bent pipe sections are alternately arranged and distributed within the range covered by the fins; the cooling pipeline is connected with a cold water source. According to the server cabinet and the data center cooling system provided by the embodiment of the invention, the cooling assembly is integrated in the server cabinet, so that the server can be cooled in a close range, and the cooling assembly is simple to mount and does not need a relatively large space.

Description

TECHNICAL FIELD

[0001] The present application relates to a cooling technology for a computer room, in particular to a server cabinet and a data center cooling system. BACKGROUND

[0002] A large number of server devices are arranged in a data center computer room, and a large amount of heat is generated during operation. An air conditioning unit is usually arranged in the computer room to cool down, so as to ensure that the server devices can work normally. A plurality of cabinets are arranged in parallel in the computer room, a plurality of servers are arranged in one cabinet, and the air conditioner is arranged on both sides of the computer room or between the cabinets.

[0003] A conventional air-cooled direct expansion type rack air conditioner includes an indoor unit and an outdoor unit. The outdoor unit includes a compressor and a condenser, has a high installation requirement, needs to reserve sufficient return air and maintenance space, and cannot have any obstructions within 2m of the air outlet and within 30cm of the return air inlet. In addition, in order to ensure that the compressor can normally return oil, the indoor unit and the outdoor unit need to be ensured to be within an effective height difference range and a length range. Generally, the positive drop is up to 20m, the negative drop is up to 5m, and the effective length is not more than 30m. Therefore, sufficient installation space is needed. However, in actual application scenarios, many cannot meet the requirement. For example, in a high-rise building, many computer rooms are located in the middle floors, and the height difference between the indoor unit and the outdoor unit is difficult to meet the requirement of 20m. Moreover, in winter in northern China, the outdoor environment temperature is generally lower than -10℃, which is out of the normal use temperature range of the compressor, resulting in shutdown of the air conditioner. Furthermore, the working energy consumption of the compressor and the condenser is very high, causing large energy consumption.

[0004] In recent years, a cooling device using ice blocks has been applied in a data center computer room, which can overcome the defects of the outdoor unit. However, the ice blocks need to be frequently replaced, which is inconvenient to use. If the ice blocks are not replaced in time, serious consequences will be caused.

[0005] There is also a data center computer room in which a cold channel and a hot channel are arranged below a bottom plate, cold air is sent from the cold channel to between the cabinets, hot air is returned from the hot channel, and then the air is concentrated and heat-exchanged by an air conditioning unit. This scheme has a large difficulty in structural modification of the computer room, has a high cost, and still uses the air-cooled direct expansion type rack air conditioner. SUMMARY

[0006] In order to solve one of the above technical defects, a server cabinet and a data center cooling system are provided in the embodiments of the present application.

[0007] According to a first aspect of the embodiments of the present application, a server cabinet is provided, which includes:

[0008] a cabinet body, a rack body for placing servers is arranged in the cabinet body;

[0009] The cooling assembly is arranged in the cabinet and located at the lower part of the rack, and comprises a cooling shell, a cooling pipeline, a fin and a fan arranged in the cooling shell; one end of the cooling shell is provided with an air inlet, and the other end is provided with an air outlet; the fan is located at one side of the air outlet, and the air supply direction of the fan is towards the air outlet; the fin and the cooling pipeline are located at one side of the air inlet; the cooling pipeline comprises straight pipe sections and elbow pipe sections, the straight pipe sections and the elbow pipe sections are arranged alternately, and are arranged in the range covered by the fin; the cooling pipeline is used to be connected with the cold water source.

[0010] According to a second aspect of the embodiment of the present application, a data center cooling system is provided, comprising a cold water source and the server cabinet as described above.

[0011] The plurality of server cabinets are arranged side by side, and the cold water source provides cold water to the cooling pipeline in the server cabinet.

[0012] The technical scheme provided by the embodiment of the present application arranges a rack for placing servers in the cabinet; arranges a cooling assembly in the cabinet and at the lower part of the rack; the cooling assembly comprises a cooling shell, a cooling pipeline, a fin and a fan arranged in the cooling shell; one end of the cooling shell is provided with an air inlet, and the other end is provided with an air outlet; the fan is located at one side of the air outlet, and the air supply direction of the fan is towards the air outlet; the fin and the cooling pipeline are located at one side of the air inlet; the cooling pipeline comprises straight pipe sections and elbow pipe sections, the straight pipe sections and the elbow pipe sections are arranged alternately, and are arranged in the range covered by the fin; the cooling pipeline is used to be connected with the cold water source, cold water is supplied to the cooling pipeline through the cold water source, and the cold water absorbs heat in the cabinet during the flow in the cooling pipeline, so as to realize the cooling of the servers. The above-mentioned scheme integrates the cooling assembly in the server cabinet, can cool the servers at a close distance, and the installation of the cooling assembly is simple, without the need of a large space, so as to solve the problem of limited space caused by the application of the air-cooled straight expansion type rack air conditioner in the traditional scheme. Moreover, the present scheme is not affected by the outdoor temperature, and the cooling assembly can work normally even if the outdoor temperature is below-10℃. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 The structure schematic view of the server cabinet provided by the embodiment of the present application is shown in the figure;

[0015] Figure 2 The right view of the server cabinet provided by the embodiment of the present application is shown in the figure;

[0016] Figure 3 The structure schematic view of the cooling assembly in the server cabinet provided by the embodiment of the present application is shown in the figure;

[0017] Figure 4 A schematic diagram of the structure of the fan, cooling pipes and fins in the server rack provided in an embodiment of this application;

[0018] Figure 5 This is a schematic diagram of the structure of a data center cooling system provided in an embodiment of this application.

[0019] Figure label:

[0020] 1-Cabinet; 11-Frame;

[0021] 2-Cooling assembly; 21-Cooling housing; 211-Air inlet; 212-Air outlet; 213-Baffle; 214-Handle; 22-Cooling piping; 221-Water inlet; 222-Water outlet; 23-Fins; 24-Fan; 25-Power supply and control module;

[0022] 3-Server;

[0023] 41-Chiller unit; 42-Water pump; 43-Water supply pipe; 44-Return water pipe. Detailed Implementation

[0024] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0025] This embodiment provides a server rack that integrates cooling components inside the rack, enabling direct cooling of the server and solving the problems of traditional air-cooled direct expansion rack air conditioners.

[0026] like Figures 1 to 5 As shown, the server rack provided in this embodiment includes: a rack 1 and a cooling assembly 2 disposed within the rack 1. The rack 1 is provided with a frame 11, the upper part of which is used to place the server, and the cooling assembly 2 is disposed in the lower part of the frame 11, that is, the cooling assembly 2 and the server are integrated and placed in the rack 1 and arranged vertically.

[0027] Cooling assembly 2 includes: a cooling housing 21 and cooling pipes 22, fins 23, and a fan 24 disposed within the cooling housing 21. One end of the cooling housing 21 has an air inlet 211, and the other end has an air outlet 212, such as... Figure 1 As shown, Figure 1In the diagram, the Y direction points to the front of the cabinet, the X direction is the width of the cabinet, and the Z direction is the height of the cabinet. The air inlet 211 of the cooling housing 21 can face the rear of the cabinet 1, and the air outlet faces the front of the cabinet 1.

[0028] Fan 24 is located on one side of the air outlet, and the airflow direction of fan 24 is towards the air outlet. Fins 23 and cooling pipes 22 are located on one side of the air inlet. Cooling pipes 22 are used to connect to a cold water source, which provides circulating cold water to cooling pipes 22. The cold water absorbs heat during its flow in cooling pipes 22, thereby cooling the air inside the cooling housing 21. Fan 24 blows the cold air inside the cooling housing 21 out of the air outlet 212, and the cold air flows upward to the servers 3, cooling the servers 3.

[0029] Specifically, such as Figure 2 As shown, cold air flows from the front to the rear of server 3, absorbing heat during the flow. Hot air exiting from the rear of server 3 flows downwards through air inlet 211 into cooling housing 21, passing through fins 23 and cooling pipes 22 for further cooling. Fins 23 can increase the heat exchange area, thereby accelerating heat exchange and increasing the cooling rate.

[0030] The cooling pipe 22 includes straight pipe sections and bent pipe sections, which are arranged alternately within the area covered by the fins 23. This increases the heat exchange area between the cooling pipe 22 and the hot air inside the cabinet, thereby improving the heat dissipation speed.

[0031] The technical solution provided in this embodiment includes a server rack housed within a cabinet; a cooling assembly is housed within the cabinet and located at the bottom of the rack; the cooling assembly includes a cooling housing and cooling pipes, fins, and a fan housed within the cooling housing; one end of the cooling housing has an air inlet, and the other end has an air outlet; the fan is located to one side of the air outlet, and the fan's airflow direction is towards the air outlet; the fins and cooling pipes are located to one side of the air inlet; the cooling pipes include straight pipe sections and curved pipe sections, which are alternately arranged and laid within the area covered by the fins; the cooling pipes are connected to a cold water source, through which cold water is supplied to the cooling pipes, and the cold water absorbs heat from inside the cabinet during its flow through the cooling pipes, thereby cooling the server. This solution integrates the cooling assembly within the server rack, enabling close-range cooling of the server, and the installation of the cooling assembly is simple, requiring minimal space, thus solving the space limitation problem inherent in traditional solutions using air-cooled direct-expansion rack air conditioners. Furthermore, this solution is unaffected by outdoor temperature; the cooling components can function normally even when the outdoor temperature is below -10℃.

[0032] In addition, this solution does not require any modifications to the underground of the computer room, reducing construction and maintenance difficulties and thus lowering costs.

[0033] In the above scheme, there are at least two fans 24, spaced apart along the extension direction of the straight section in the cooling pipe 22. In this embodiment, three fans 24 are arranged at intervals, which can quickly blow out the cold air from the cooling housing 21 and form an orderly airflow within the cooling housing 21 and the rack 1, thereby achieving rapid cooling of the server. The cooling housing 21 is also equipped with a power supply and control module 25, which is used to supply power to the fans 24 and control the start and stop of the fans 24.

[0034] The aforementioned cooling pipe 22 includes straight pipe sections and bent pipe sections, which can be formed into a spiral, serpentine, or other shapes. One embodiment is that the straight pipe sections are arranged parallel and side-by-side, and each straight pipe section has an equal length, forming... Figure 4 The fins are serpentine in shape. The fins 23 are located below and in contact with the cooling pipes 22. Specifically, both the fins 23 and the cooling pipes 22 are made of metal, and they are in close contact or welded together to improve heat dissipation.

[0035] One end of the cooling pipe 22 is the water inlet 221, and the other end is the water outlet 222, both of which are connected to the cold water source.

[0036] like Figure 3 As shown, one embodiment is as follows: the cooling housing 21 is made of metal plates and has a rectangular box-shaped structure. The top and side walls of the cooling housing 21 are provided with mesh holes as air outlets 211 and air inlets 212. Cold air inside the cooling housing 21 is blown out from the front air outlet 212 and flows upward to cool the server 3. Hot air flowing out from the rear of the server 3 enters the cooling housing 21 downward through the air inlet 211.

[0037] A vertically extending baffle 213 is provided on the side of the cooling housing 21, which cooperates with a stop block on the inner surface of the side wall of the cabinet 1 to stop the cooling component 2 in place. A handle 214 is provided on the baffle 213, which allows the operator to push the cooling component 2 into or pull it out of the cabinet 1. During the process of pushing into the cabinet 1, when the baffle 213 touches the stop block, it is equivalent to pushing the cooling component 2 into place.

[0038] The cooling housing 21 is also equipped with a temperature and humidity sensor for detecting temperature and humidity.

[0039] Specifically, the upper part of the frame 11 is provided with multiple first trays for supporting servers. The multiple first trays are arranged at vertical intervals and can slide relative to the frame 11. The server is placed on the first tray and the first tray is pushed into the cabinet 1.

[0040] The lower part of the frame 11 is provided with a second tray for supporting the cooling assembly 2, and the second tray can slide relative to the frame 11. The cooling assembly 2 is placed on the second tray, and the second tray is pushed into the cabinet 1.

[0041] Based on the above technical solutions, this embodiment also provides a data center cooling system, including a cold water source and server racks provided by any of the above-mentioned components. Multiple server racks are arranged side by side, and the cold water source provides cold water to the cooling pipes in the server racks.

[0042] Specifically, the chilled water source includes: a chiller unit 41, a water pump 42, a water supply pipe 43, and a return water pipe 44. Among them, the chiller unit 41 is used to generate chilled water at a lower temperature, such as chilled water at 0℃-5℃. For example, it can be a screw chiller unit or a centrifugal chiller unit, which can reduce energy consumption and improve working efficiency.

[0043] One end of the water supply pipe 43 is connected to the water supply end of the chiller unit 41, and the other end is connected to the water inlet end 221 of the cooling pipe in the cooling assembly 2. The water pump 42 is installed on the water supply pipe 43 to supply the chilled water generated by the chiller unit to each server rack through the water supply pipe 43.

[0044] One end of the return water pipe 44 is connected to the return water end of the chiller unit 41, and the other end is connected to the outlet end 222 of the cooling pipe in the cooling assembly 2. Hot water discharged from each server rack flows back to the chiller unit 41 through the return water pipe 44. The liquid circulates continuously between the chiller unit 41 and each rack, thereby cooling the racks. By detecting and adjusting the chilled water supply temperature, a constant temperature inside the racks is maintained, ensuring reliable server operation.

[0045] In the above scheme, multiple server racks are arranged side by side, which can be configured in a conventional manner. The chiller unit 41 can be installed outside the server room or in the basement of the server room, without occupying server room space, so that more servers can be deployed in the server room and the space utilization rate of the server room can be improved.

[0046] The installation of chiller unit 41 is not limited by height differences, allowing for more flexible installation locations. The centralized cooling provided by chiller unit 41 reduces energy consumption compared to installing multiple air conditioners in a computer room.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0050] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0051] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A server rack, characterized in that, include: Cabinet; The cabinet contains a frame for placing servers; The cooling assembly is housed within the cabinet and located at the bottom of the frame. The cooling assembly includes a cooling housing and cooling pipes, fins, and a fan housed within the cooling housing. One end of the cooling housing has an air inlet, and the other end has an air outlet. The fan is located to one side of the air outlet, and the fan's airflow direction is towards the air outlet. The fins and cooling pipes are located to one side of the air inlet. The cooling pipes include straight pipe sections and curved pipe sections, which are alternately arranged and laid within the area covered by the fins. The cooling pipes are used to connect to a cold water source.

2. The server rack according to claim 1, characterized in that, The number of fans is at least two, and they are spaced apart along the extension direction of the straight pipe section in the cooling pipeline.

3. The server rack according to claim 1, characterized in that, In the cooling pipeline, the straight pipe sections are arranged in parallel and side by side, and the length of each straight pipe section is equal.

4. The server rack according to claim 1, characterized in that, The cooling housing is a rectangular box-shaped structure made of metal plates. The top and side walls of the cooling housing are provided with mesh holes as air outlets and air inlets.

5. The server rack according to claim 4, characterized in that, The air outlet of the cooling housing faces the front of the cabinet, and the air inlet faces the rear of the cabinet.

6. The server rack according to claim 4, characterized in that, The cooling housing has a vertically extending baffle on its side, which works in conjunction with a stop block on the inner surface of the cabinet side wall to stop the cooling components in place.

7. The server rack according to claim 6, characterized in that, The baffle is equipped with a handle.

8. The server rack according to claim 1, characterized in that, The upper part of the frame is provided with multiple first trays for supporting servers, and the multiple first trays are arranged at vertical intervals; the first trays can slide relative to the frame. The lower part of the frame is provided with a second tray for supporting the cooling components, and the second tray can slide relative to the frame.

9. A data center cooling system, characterized in that, include: Cold water source and server rack as described in any one of claims 1-8; Multiple server racks are arranged side by side, and a cold water source supplies cold water to the cooling pipes in the server racks.

10. The data center cooling system according to claim 9, characterized in that, The cold water source includes: a chiller unit, a water pump, a water supply pipe, and a water return pipe; The water pump is installed on the water supply pipe to supply the chilled water produced by the chiller unit to each server rack; the hot water discharged from each server rack flows back to the chiller unit through the return water pipe.

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