Data center air cabinet

Abstract

The utility model discloses a data center air cabinet which comprises an air cabinet body and a control device, the air cabinet body is of a hollow cuboid-shaped box body structure, the bottom of the air cabinet body is provided with an air inlet used for being communicated with an air supply channel below a raised floor, and the front end face of the air cabinet body is provided with a plurality of air outlets used for being communicated with a cold channel of a machine room. Each air outlet is provided with an EC fan; the control device comprises a control panel, temperature sensors and a main controller, the control panel, the temperature sensors and the EC draught fans are electrically connected with the main controller, and the temperature sensors are distributed in a heat channel of the machine room. According to the utility model, a lower air inlet and front air outlet structure is adopted, and the main controller can control the starting number and the rotating speed of the EC fans in real time according to the return air temperature data of the hot channel acquired by the temperature sensor, so that cold air below the raised floor is fed into the cold channel and the server cabinet to cool a server; and the temperature in the hot channel is always close to and lower than the designed alarm temperature.

Description

TECHNICAL FIELD

[0001] The utility model relates to data center equipment technical field especially relates to a data center air cabinet. BACKGROUND

[0002] The air-cooled data center of the underfloor air supply adopts the precision air conditioner to send the cold air into the underfloor of the raised floor, the cold air can enter the cabinet cold channel by setting the ventilation floor in the cabinet cold channel, so that the cold air becomes hot air after passing through the cabinet server and returns to the precision air conditioner of the machine room. In the above model, the distance between each cabinet and the air conditioner is not the same, and the power consumption of each cabinet is also not completely the same, but the opening rate of the ventilation floor is the same. Therefore, in the actual scene, the temperature of part of the cabinet is often too high and high-temperature alarm occurs.

[0003] To solve this problem, the current general method is to increase the air supply of the precision air conditioner, reduce the air supply temperature of the air conditioner, replace the corresponding ventilation floor or directly add inter-row air conditioners beside the over-temperature cabinet to solve the problem of local high temperature. By reducing the air supply temperature of the air conditioner, the efficiency of the air conditioning system is reduced, the refrigerating capacity is reduced, and the electricity cost is increased. In addition, the air conditioner also has problems such as reduced efficiency and shortened service life due to the deviation from the design working condition. Because the opening rate of the ventilation floor has an upper limit, replacing the ventilation floor with a larger ventilation rate is only suitable for solving the cabinet over-temperature problem in the scene where the over-temperature cabinet is located far away from the precision air conditioner, and replacing the raised floor cannot solve the cabinet over-temperature problem. The newly added inter-row air conditioner needs an external cold source, which has a large amount of work and high cost. SUMMARY

[0004] The utility model aims at providing a data center air cabinet, which adjusts the rotating speed of the EC fan on the air cabinet body in real time according to the return air temperature of the hot aisle, truly realizes on-demand air supply, avoids local over-temperature of the cabinet, avoids low air supply temperature of the precision air conditioner and reduces the system efficiency, and solves the problems mentioned in the background.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A data center air cabinet, comprising an air cabinet body and a control device, the air cabinet body is a hollow rectangular box structure, the bottom of the air cabinet body is provided with an air inlet for communicating with the air supply channel below the raised floor, the front end face of the air cabinet body is provided with a plurality of air outlets for communicating with the cold aisle of the machine room, and each air outlet is provided with an EC fan; the control device comprises a control panel, a temperature sensor and a main controller, the control panel, the temperature sensor and each EC fan are electrically connected with the main controller, and the temperature sensor is distributed in the hot aisle of the machine room.

[0007] Further, the air cabinet body comprises a back plate located at the rear end face, side plates located at the two side faces, a front plate located at the front end face, and a top plate located at the top face, the air outlet is arranged on the front plate, and the back plate, the front plate and the two side plates form the air inlet.

[0008] Further, the control panel is arranged on the front plate of the air cabinet body.

[0009] Further, a plurality of the EC fans are linearly and spacedly distributed along the height direction of the air cabinet body.

[0010] Further, the air outlet and the EC fan are each provided with five.

[0011] Further, the EC fan is a modularly installed EC fan module, the EC fan comprises a fan body and a fan fixing plate connected with the fan body, and the outer contour of the fan fixing plate is matched with the contour of the air outlet.

[0012] Further, the fan fixing plate is connected with the edge of the air outlet in a plug-in manner.

[0013] Compared with the prior art, the data center air cabinet has the following beneficial effects:

[0014] The utility model discloses a structure of air inlet at the lower end and air outlet at the front end, and the main controller can control the starting number and rotating speed of the EC fan in real time according to the hot channel return air temperature data collected by the temperature sensor, so that the cold air under the raised floor is sent into the cold channel and the server cabinet to cool the server, and the temperature in the hot channel is always close to and lower than the design alarm temperature.

[0015] Compared with the prior art of reducing the return air temperature of the air conditioner, the application can send air as needed according to the cabinet cooling requirement, avoid the increase of air supply volume and the decrease of return air temperature of the air conditioning system due to the over-temperature of individual cabinets, and reduce the operation efficiency of the air conditioning system, so as to increase the electricity cost.

[0016] Compared with the replacement of the ventilation rate of the ventilation floor, the ventilation rate of the ventilation floor is small, and the increase of the air volume obtained by replacing the ventilation floor is limited, and the application can realize that even the cabinet far away from the air conditioner can also obtain sufficient cooling air volume.

[0017] Compared with the increase of the inter-row air conditioner, the inter-row air conditioner has high cost and complex engineering, and the application has simple structure, lower cost and easy construction. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0020] Figure 2 It is a three-dimensional structure schematic diagram of the present application from another perspective;

[0021] Figure 3 It is a front view of the present application;

[0022] Figure 4 It is an application schematic diagram of the present application in the machine room;

[0023] Figure 5 It is a control principle block diagram of the present application;

[0024] Figure 6 It is a wind volume optimization curve diagram.

[0025] The drawings are as follows: 1, the cabinet body of the air cabinet; 11, the air inlet; 12, the air outlet; 13, the back plate; 14, the side plate; 15, the front plate; 16, the top plate; 2, the EC fan; 21, the fan body; 22, the fan fixing plate; 3, the control panel; 4, the temperature sensor; 5, the main controller; 6, the raised floor; 61, the air supply channel; 7, the cold channel; 8, the hot channel; 9, the server cabinet; 91, the server; 10, the power supply module. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely by the following detailed embodiments and combined with the drawings, obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0027] Please refer to Figures 1-5The embodiment provides a data center air cabinet, which comprises an air cabinet body 1 and a control device, the air cabinet body 1 is a hollow cuboid box structure, the bottom of the air cabinet body 1 is provided with an air inlet 11 for communicating with a air supply channel 61 below an overhead floor 6, the front end surface of the air cabinet body 1 is provided with a plurality of air outlets 12 for communicating with a cold aisle 7 of a computer room, and each air outlet 12 is provided with an EC fan 2; the control device comprises a control panel 3, a temperature sensor 4 and a main controller 5, the control panel 3, the temperature sensor 4 and each EC fan 2 are electrically connected with the main controller 5 respectively, and the temperature sensor 4 is distributed in a hot aisle 8 of the computer room. In this way, by adopting the structure of air inlet at the bottom and air outlet at the front, the main controller can control the starting number and rotating speed of the EC fan in real time according to the hot aisle return air temperature data collected by the temperature sensor, so that the cold air below the overhead floor is sent into the cold aisle and the server cabinet to cool the server, and the temperature in the hot aisle is always close to and lower than the design alarm temperature.

[0028] In some specific embodiments, the air cabinet body 1 comprises a back plate 13 located at the rear end, side plates 14 located at the two sides, a front plate 15 located at the front end and a top plate 16 located at the top, the air outlet 12 is arranged on the front plate 15, and the back plate 13, the front plate 15 and the two side plates 14 form the air inlet 11. Specifically, the control panel 3 is arranged on the front plate 15 of the air cabinet body 1. As an example, the width of the air cabinet body 1 in the transverse direction is 600 mm, and the depth in the longitudinal direction is 1200 mm, which is consistent with the size of a standard server cabinet.

[0029] As a preferred embodiment, a plurality of EC fans 2 are linearly and spacedly distributed along the height direction of the air cabinet body 1. In some specific embodiments, the air outlet 12 and the EC fan 2 are respectively provided with five. More specifically, the number of EC fans 2 can be increased according to requirements. When part of the air outlets 12 is not provided with the EC fan 2, the same size specification of blind plate can be inserted and plugged to prevent the backflow of cold air.

[0030] In some specific embodiments, the EC fan 2 is a modularly installed EC fan module, the EC fan 2 comprises a fan body 21 and a fan fixing plate 22 connected with the fan body 21, and the outer contour of the fan fixing plate 22 is matched with the contour of the air outlet 12. The EC fan 2 adopts a modular design and can be hot-plugged, so that quick assembly is facilitated. More specifically, the fan fixing plate 22 is connected with the edge of the air outlet 12 in a plug-in manner.

[0031] In some specific embodiments, the main controller 5 can adopt a single-chip microcomputer and is connected with a power supply module 10, and the power supply module 10 is provided with power by power distribution equipment of the computer room.

[0032] The following is an explanation of the process of optimizing air volume control in the application of the utility model in the computer room:

[0033] When the return air temperature is greater than t0, EC fan 2 runs at full speed (i.e., runs at 100% speed, which can quickly reduce the hot aisle temperature to below the alarm temperature) for time T; when the new return air temperature t1 is less than t0, the speed of EC fan 2 is increased by (100-x)% and then runs for time T; when the new return air temperature t2 is less than t1, the speed of EC fan 2 is further reduced to (100-2x)%, and the new return air temperature t3 is obtained after running for time T; if t3 is less than t2, the speed of EC fan 2 is reduced to (100-ax)%, and the corresponding return air temperature t (a+1) >t a , such as the return air temperature t (a+1) <(t a +t0) / 2, EC fan 2 continues to reduce its speed until the speed of EC fan 2 drops to (100-nx±y)%, and the corresponding return air temperature is t (n+1) =(t0+t n ) / 2±△t infinitely approaches t0-△t±△t; if t (m+1) >(t m +t0) / 2, adjust the speed of EC fan 2 to (100-mx+y)% to reduce the return air temperature to t (m+1) =(t m +t0) / 2±△t; EC fan 2 continues to reduce its speed until the EC fan speed drops to (100-nx±y)%, and the corresponding return air temperature is t (n+1) =(t0+t n ) / 2±△t infinitely approaches t0-△t±△t. Among them, t0 is the alarm temperature of hot aisle return air overtemperature, t n and t a is the return air temperature of the hot aisle, T is the fan operating time; n is a natural number, such as 0, 1, 2; a and m are positive integers, such as 1, 2, 3; x and y are fan speed adjustment parameters, x = 5 to 20, y = 1 to 5; △t is the system temperature tolerance, which cannot be eliminated, in °C, and △t = 0.1 to 0.5.

[0034] More specifically, as an example, when the ambient temperature exceeds the temperature, the wind cabinet starts, EC fan 2 runs at full speed, and the return air temperature drops. The speed of EC fan 2 is reduced by 10%. Assuming that when the speed of EC fan 2 reaches 60%, the return air temperature no longer drops. Therefore, the return air temperature t aIf the deviation from the alarm temperature t0 is large, the return air temperature needs to be slowly raised to a temperature close to the alarm temperature range t0-△t±△t. In the process of slowly raising the return air temperature, the EC fan speed is gradually reduced by 5% until the return air temperature t=(t a +t0) / 2±△t interval, assuming that the EC fan has been regulated for the nth time so that t (n+1) =(t n +t0) / 2±△t, that is, t n =t0-△t±△t. Figure 6 As shown, if △t = 0.1℃ and t0 = 37℃, the return air temperature is always in the range of 36.8~37℃.

[0035] The above embodiments are merely illustrative of the concepts and technical solutions of this utility model and are not intended to limit this utility model. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical concepts disclosed in this utility model shall be covered by the claims of this utility model.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A data center air cabinet comprising an air cabinet cabinet body and a control device, characterized in that, The air cabinet cabinet body is a hollow cuboid box structure, the bottom of the air cabinet cabinet body is provided with an air inlet for communicating with the air supply channel below the raised floor, the front end surface of the air cabinet cabinet body is provided with a plurality of air outlets for communicating with the cold aisle of the machine room, and each air outlet is provided with an EC fan; the control device comprises a control panel, a temperature sensor and a main controller, the control panel, the temperature sensor and each EC fan are electrically connected with the main controller respectively, and the temperature sensor is distributed in the hot aisle of the machine room.

2. The data center air cabinet of claim 1, wherein, The air cabinet cabinet body comprises a back plate located at the rear end surface, side plates located at the two side surfaces, a front plate located at the front end surface and a top plate located at the top surface, the air outlets are arranged on the front plate, and the back plate, the front plate and the two side plates enclose the air inlet.

3. The data center air cabinet of claim 2, wherein, The control panel is arranged on the front plate of the air cabinet cabinet body.

4. The data center air cabinet of claim 1, wherein, A plurality of EC fans are linearly and spacedly distributed along the height direction of the air cabinet cabinet body.

5. The data center air cabinet of claim 4, wherein, The air outlet and the EC fan are each provided with five.

6. The data center air cabinet of any one of claims 1-5, wherein, The EC fan is a modularly installed EC fan module, the EC fan comprises a fan body and a fan fixing plate connected with the fan body, and the outer contour of the fan fixing plate is matched with the contour of the air outlet.

7. The data center air cabinet of claim 6, wherein, The fan fixing plate is connected with the edge of the air outlet in a plug-in manner.

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