A data center cold aisle structure

Abstract

The application discloses a kind of data center cold aisle structures, cold aisle is formed between two rows of cabinets with horizontal interval, cold air inlet and the ground below the ground below the cold air inlet passage are connected, shielding component is connected and arranged on the top of the cabinet on both sides above the cold aisle, characterized in that, the vertical section of shielding component under working state is extended to the middle position of cold aisle in the middle, the appearance of both sides is extended to the top of the cabinet in the upper outside, and the lower surface is the symmetric arc curved surface structure that both sides are bulged upwards.This application can optimize the airflow organization inside cold aisle, better improve the cooling effect of server on the top of cabinet, and improve the cooling balance effect of cold aisle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data center server room, in particular to a data center cold aisle cold air flow control method. BACKGROUND

[0002] The server in the data center room generates a lot of heat when working, in order to ensure the working efficiency of the server, cooling measures are needed to be considered to cool and dissipate heat. There are two cooling methods for server cooling, air cooling and liquid cooling, and the cold aisle structure is an engineering structure that optimizes the cooling efficiency of the data center by physically isolating cold and hot air flows. The core principle is to arrange the corridor between the server cabinets in cold and hot aisles alternately, the cold air enters the cold aisle from the air inlet pipe buried in the ground, then horizontally passes through the server cabinets on both sides into the hot aisle, and then enters the exhaust channel on the roof for exhaust and centralized treatment.

[0003] The existing cold aisle structure is divided into open type, closed type and semi-closed type. The open type cold aisle does not set a flow guide structure between the cabinet bodies, which has low cost, but also has the defect of low cold energy utilization efficiency, and is currently rarely used. The closed type cold aisle is a structure that seals the upper end and the front and rear ends of the cold aisle, and the semi-closed type cold aisle is a structure that only seals the upper end of the cold aisle and opens the two ends. The closed type and semi-closed type cold aisle need to set a top cover above the cold aisle.

[0004] The existing cold aisle top cover structure is usually a simple flat structure connected to the top of the two side cabinets. The cold aisle is provided with an air inlet at the lower end of the bottom plate, and the cold air enters the cold aisle from the lower air inlet. After entering the cold aisle, it will preferentially enter the cabinets on both sides from the position close to the lower end, causing insufficient cold air flow into the upper part of the cabinet. And the airflow that reaches the top of the cold aisle will flow downward under the impact of the horizontal top plate, the airflow organization is chaotic, and the wind power loss is large. At the same time, the upper part of the cabinet is closer to the hot air flow above the cabinet, which further increases the defect of insufficient cooling of the server above the cabinet.

[0005] Therefore, how to better adjust the airflow distribution in the cold aisle to enhance the cooling effect of the server above the cabinet and improve the cooling balance effect is the long-term improvement direction of the technical personnel in the field. SUMMARY

[0006] In view of the above shortcomings of the prior art, the technical problem to be solved by the present application is to provide a data center cold aisle structure that can optimize the airflow organization in the cold aisle, better improve the cooling effect of the server above the cabinet, and improve the cooling balance effect.

[0007] To solve the above technical problems, the present application adopts the following technical solutions:

[0008] A data center cold aisle structure, the cold aisle is formed between two rows of cabinets horizontally spaced apart, the cold air inlet and the cold air inlet passage below the ground are connected below the ground, and a shielding member is connected and arranged at the top of the cabinets on both sides above the cold aisle, characterized in that the vertical section of the shielding member in the working state extends downward to the middle position of the cold aisle, the two sides extend outward and upward to the top of the cabinet, and the lower surface is a symmetric arc-shaped curved surface structure.

[0009] In this way, the inner surface of the arc-shaped drum on both sides of the shielding member faces the upper side of the two cabinets, and when the upward airflow reaches the middle and lower part of the shielding member, it can be better separated and flow to both sides, improving the airflow organization in the upper area of the cold aisle, shortening the airflow path of the upward airflow reaching the upper area of the two cabinets, and reducing the airflow resistance. Compared with the existing horizontal top plate method, the reverse airflow generated after the upward cold air hits no longer flows vertically downward but flows in the direction of the upper area of the cabinet along the two sides. Therefore, the airflow organization inside the cold aisle is greatly optimized, and the cooling effect of the servers above the cabinets is better improved.

[0010] Further, the shielding member is made of transparent material.

[0011] In this way, the lamps on the roof of the room can pass through the shielding member to illuminate the inside of the cold aisle.

[0012] Further, the cold air inlet is uniformly distributed in multiple rows along the width direction of the cold aisle, and the air inlet flow rate of the cold air inlet decreases from the middle to the two sides along the width direction.

[0013] In this way, the cold air flow rate blown upward from the middle is greater than that on both sides, the cold air blown on both sides enters the lower area of the cabinet first, and the cold air blown from the middle position reaches the upper area and then flows to both sides guided by the arc-shaped structure on the top, and enters from the upper area of the cabinet; therefore, the cooling balance effect of the upper and lower positions of the cabinets on both sides of the cold aisle is better improved.

[0014] Further, the cold aisle door is further installed at the front and rear ends of the cold aisle.

[0015] In this way, compared with the open cold aisle, the cold air utilization efficiency can be better improved.

[0016] Further, the louver structure with adjustable louver angle is installed on the cold aisle door.

[0017] In this way, the cold aisle can be closed or semi-closed by adjusting the angle of the louvers, and the flow and direction of the cold air flowing out of the cold aisle can be adjusted, thereby facilitating the adjustment and control of the refrigeration of the corridor outside the cold aisle.

[0018] Alternatively, the shielding member is made of glass material and has a symmetric arc-shaped curved surface structure on the lower surface.

[0019] In this way, the shielding member is made of hard transparent glass material (preferably acrylic glass to better ensure strength), and is in a fixed state after installation, without the need for up-down adjustment. This has the advantages of simple structure, easy implementation, and low cost. However, the relative defect is that the shielding member is made of hard material and cannot be adjusted up and down, which may cause inconvenience when a worker enters the cold aisle. Therefore, this option is relatively suitable for high cold aisles and low cost requirements.

[0020] Therefore, as a better alternative, an adjustable shielding and guiding device is arranged above the top of the cold aisle, which includes two flexible films (made of transparent material) symmetrically installed on both sides of the top of the cold aisle. The two flexible films are connected to the middle position of the middle part of the cold aisle by a connecting rod arranged horizontally along the length direction of the cold aisle, and are connected to the upper end of the two side cabinets outside the two flexible films. The width of the flexible film is greater than the distance of the inclined connecting line from the connecting rod to the upper end of the two side cabinets, and is less than the sum of the height of the connecting rod and the horizontal distance from the connecting rod to the cabinet. A support frame is arranged above the flexible film along the top of the cold aisle, and a lifting adjustment mechanism is installed on the support frame and connected to the connecting rod.

[0021] In this way, the shielding member is composed of the two flexible films and the connecting rod. In the working state, the connecting rod is located in the middle position of the middle part of the cold aisle under the action of its own weight, and the width of the flexible film is designed to be able to be inflated upward to form the symmetric arc-shaped curved surface structure under the action of the wind force at the cold air inlet of the cold aisle, so as to guide the upward airflow to flow better to both sides, improve the airflow organization inside the cold aisle, and improve the balanced cooling effect on the cabinet. When a worker enters the cold aisle, the connecting rod can be adjusted upward to the upper position by the lifting adjustment mechanism to avoid interference with the operation of the worker; and the connecting rod can be controlled to descend after the worker leaves. Therefore, not only can the airflow organization inside the cold aisle be improved to improve the cooling effect, but also the operation of the worker can be better avoided from being interfered.

[0022] Further, the lifting adjusting mechanism comprises a wire slot horizontally mounted on the support frame, the wire slot comprises a bus slot arranged on both sides of the upper end of the cold channel along the length direction, and a plurality of sub-wire slots arranged along the width direction of the cold channel, the two ends of the sub-wire slots are arranged in connection with the bus slot, the two ends of the bus slot are vertically extended inward along the width direction of the cold channel to form two transverse extension sections, a transmission sub-wire is arranged in the sub-wire slot, the middle position of the transmission sub-wire passes through the opening in the middle of the sub-wire slot and is connected downward to the connecting rod, the two ends of the transmission sub-wire are fixedly connected to the transmission bus in the bus slot, the two ends of each transmission bus extend outward out of the bus slot and are respectively wrapped and connected to a wire reel arranged outside the transverse extension section of the bus slot, the wire reel is rotatably mounted on the support frame by means of a wire reel rotating shaft arranged horizontally along the length direction of the cold channel, a reset spring is further arranged between the wire reel and the support frame, one end of the wire reel rotating shaft extends outward out of the wire reel and is provided with a transmission gear by means of a one-way coupling, and the transmission gear is engaged with the rack horizontally mounted on the upper end of the split translation type cold channel door.

[0023] In this way, when the operator needs to enter the cold channel to operate, the cold channel door at either end of the cold channel is opened, the cold channel doors on both sides of the end are opened by translation, so that the rack drives the transmission gear to rotate, and then the wire reel is driven to rotate through the one-way coupling. In this way, the wire reel at the end is rotated to pull the transmission bus, and the wire reel at the other end is reversely rotated to pull the transmission bus to the starting end, the transmission sub-wire is pulled to move together in the process of pulling the bus to one end, so that the connecting rod is pulled upward to avoid interfering with the operator. When the wire reel at the other end is reversely rotated, the reverse rotation is not transmitted to the corresponding transmission gear due to the one-way coupling, so that the cold channel door at the other end can remain closed. When the operator exits the cold channel after completing the operation, the cold channel door is closed, and the action of closing the cold channel door is not transmitted to the wire reel due to the one-way coupling, but the wire reel can be reset by the reset spring to reset the bus and the sub-wire under the action of the bus and the self-weight of the connecting rod. Therefore, the lifting adjusting mechanism can automatically adjust the lifting of the connecting rod by opening and closing the cold channel door, and the opening and closing of the cold channel doors at both ends of the cold channel do not interfere with each other.

[0024] Further, a fixed pulley is arranged at the corner of the wire slot.

[0025] In this way, the transmission bus and the transmission sub-wire can be smoothly pulled.

[0026] Further, the sub-wire slots are uniformly distributed along the length direction of the cold channel.

[0027] In this way, the transmission wire is more balanced in stress.

[0028] Further, the connecting rod comprises an outer connecting rod of sleeve structure and an inner connecting rod sleeved in the outer connecting rod, the middle part of the upper end of the outer connecting rod is connected with the transmission branch line, the upper outer side of the outer connecting rod is connected with the lower end of the flexible film on the corresponding side, the other side of the outer connecting rod is provided with a poor-arc notch, and the upper outer side of the inner connecting rod is connected with the lower end of the flexible film on the corresponding side through the poor-arc notch of the outer connecting rod; the transverse section of the inner connecting rod is composed of a good-arc and a straight line, the plane where the straight line of the inner connecting rod is located is wrapped in the outer connecting rod and faces the direction of the flexible film connected with the outer connecting rod in the working state, and the first magnet is further arranged on the inner connecting rod at the lower end position where the straight line is located; when the flexible film connected with the inner connecting rod is in the position state of outward and downward, the inner connecting rod is just rotated to the upper end of the straight line to enter the poor-arc notch area of the outer connecting rod, and the outer connecting rod is provided with the second magnet repelling the first magnet on the inner connecting rod in this position state.

[0029] In this way, in the working state, the flexible film is blown upward by the cold air to bulge, so that the lower ends of the flexible films on both sides are in the position state of being pulled upward, and the inner connecting rod can be well maintained in the outer connecting rod. However, when the flexible films on both sides drop downward, the outer connecting rod will not rotate under the action of the transmission branch line, and the inner connecting rod will be pulled and rotated by the corresponding flexible film, so that the upper end of the straight line of the inner connecting rod is rotated out of the poor-arc notch of the outer connecting rod; at the same time, the first magnet and the second magnet are rotated to the position of repelling each other, so that the inner connecting rod can drop out of the outer connecting rod to realize unlocking under the action of the repelling force of the magnet and the gravity. This is because in most data center machine rooms, an automatic fire extinguishing system is arranged on the top of the machine room, and the density of the fire extinguishing gas is greater than that of air. When a fire occurs, the cold aisle cold air will be automatically closed, and the fire extinguishing medium will be sprayed downward from the top of the machine room. At this time, under the action of gravity and the downward impact of the fire extinguishing medium, the flexible film will change to the state of being convex downward. In this structure, the connecting rod can be automatically unlocked and separated, so that the fire extinguishing medium can enter the cold aisle better, and the fire extinguishing effect is better.

[0030] Further, a line combiner is further arranged on the upper end of the connecting rod at a distance, and the transmission branch line is connected with the connecting rod through the line combiner.

[0031] In this way, when the line combiner is pulled to the topmost position, it cannot be pulled any more, so that the connecting rod always leaves a distance from the top of the cold aisle. In this way, under the action of the cold air, the flexible films at both ends of the connecting rod will still maintain the upward state, avoiding the self-unlocking of the connecting rod.

[0032] In summary, the present application can optimize the air flow organization in the cold aisle, better improve the cooling effect of the servers at the upper position of the cabinet, and improve the cooling balance effect of the cold aisle. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of the data center cold aisle structure in the preferred embodiment of the present invention.

[0034] Figure 2 for Figure 1 The diagram shows a schematic of the support frame structure.

[0035] Figure 3 for Figure 1 A top view of the lifting and adjusting mechanism where the centerline groove is located.

[0036] Figure 4 for Figure 3 A schematic diagram of the structure with the cold aisle door at one end open.

[0037] Figure 5 for Figure 3 The front view of the lifting and adjusting mechanism in the indicated state.

[0038] Figure 6 for Figure 4 The front view of the lifting and adjusting mechanism in the indicated state.

[0039] Figure 7 This is a schematic diagram showing the connected rod unlocked after the flexible membrane droops down following the shutdown of the cold air in the cold aisle.

[0040] Figure 8 This is a schematic diagram showing the normal working state of the connecting rod.

[0041] Figure 9 This is a diagram showing the connecting rod before it is unlocked. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to specific embodiments.

[0043] Optimal Implementation: See Figures 1-9 As shown, a data center cold aisle structure is described. In this structure, a cold aisle 1 is formed between two horizontally spaced rows of server racks 2. A cold air inlet is located on the ground below the cold aisle and connected to a cold air intake channel below the ground (not shown in the figure). Shielding components are connected to the tops of the server racks on both sides of the cold aisle 1. The shielding components, in their working state, have a vertical cross-section that extends downwards from the middle (horizontal direction) to the middle of the cold aisle (height direction), and extends diagonally upwards and outwards on both sides to the top of the server racks. Furthermore, the lower surface is a symmetrical arc-shaped curved surface structure with upward bulges on both sides (see [reference]). Figure 5 ).

[0044] In this way, the inner surfaces of the arc-shaped bulges on both sides of the shielding component face the upper sides of the cabinets on both sides, guiding the rising airflow to the lower part of the shielding component (see...). Figure 5), can be better separated to both sides, improve the cold channel upper region airflow organization, shorten the airflow path of the rising airflow to reach both sides of the cabinet upper region location, reduce the airflow resistance. And the existing horizontal roof way, the reverse airflow generated by the impact of the rising cold air is no longer vertical downward but flows along both sides to the direction of the cabinet upper region. Therefore, the cold channel internal airflow organization is greatly optimized, and the cooling effect of the server above the cabinet is better improved.

[0045] The shielding member is made of transparent material.

[0046] In this way, the lamps on the roof of the room can shine into the cold aisle through the shielding member.

[0047] The cold air inlet is uniformly distributed in multiple rows along the width direction of the cold aisle, and the air flow of the cold air inlet decreases from the middle to both sides along the width direction (not shown in the figure).

[0048] In this way, the cold air flow blown from the middle is greater than the cold air flow blown from both sides, and the cold air blown from both sides enters the lower region of the cabinet first, and the cold air blown from the middle reaches the upper region and then flows to both sides guided by the arc-shaped structure on the top, and enters from the upper region of the cabinet. Therefore, the cooling balance effect of the upper and lower positions of the cabinet on both sides of the cold aisle is better improved.

[0049] The cold aisle door 3 (see Figures 1-4 ) is further installed at the front and rear ends of the cold aisle.

[0050] In this way, compared with the open cold aisle, the cold air utilization efficiency can be better improved.

[0051] The louver structure (not shown in the figure) with adjustable louver angle is installed on the cold aisle door.

[0052] In this way, the louver angle of the louver can be adjusted to realize the adjustment of the closed state and the semi-closed state of the cold aisle, and the flow and direction of the cold air flowing out of the cold aisle through the louver can be adjusted, so as to facilitate the adjustment and control of the refrigeration of the corridor outside the cold aisle.

[0053] Alternatively, the shielding member can be made of glass material as a whole and the lower surface is in the symmetrical arc-shaped curved surface structure.

[0054] Thus, the shielding member is made of hard transparent glass material (preferably acrylic glass to better ensure strength), in a fixed state after installation, without up and down adjustment, having the advantages of simple structure, easy implementation and low cost. Its relative defects are that the shielding member is made of hard material and cannot be adjusted up and down, which brings inconvenience when the staff enters the cold aisle. Therefore, this selection scheme is relatively suitable for the case where the cold aisle height is higher and the cost requirement is lower.

[0055] In this embodiment, as a better choice, an adjustable shielding and guiding device is arranged above the top of the cold aisle, which includes two flexible films 4 (made of transparent material) symmetrically installed on both sides of the top of the cold aisle, and the two flexible films 4 are connected to the middle position of the middle part of the cold aisle 1 through a connecting rod 5 arranged horizontally along the length direction of the cold aisle, and the outer side of the two flexible films 4 is connected to the upper end of the two side cabinets 2. The width of the flexible film 4 is greater than the distance of the inclined connecting line from the connecting rod 5 to the upper end of the two side cabinets 2, and less than the sum of the height of the connecting rod and the horizontal distance from the connecting rod to the cabinet; a support frame 6 is arranged above the flexible film 4 along the top of the cold aisle, and a lifting adjusting mechanism is installed on the support frame 6 and connected with the connecting rod 5.

[0056] Thus, the shielding member is made of hard transparent glass material (preferably acrylic glass to better ensure strength), in a fixed state after installation, without up and down adjustment, having the advantages of simple structure, easy implementation and low cost. Its relative defects are that the shielding member is made of hard material and cannot be adjusted up and down, which brings inconvenience when the staff enters the cold aisle. Therefore, this selection scheme is relatively suitable for the case where the cold aisle height is higher and the cost requirement is lower. Figure 5 ), the connecting rod is located at the middle position of the middle part of the cold aisle under the action of its own weight, and the width of the flexible film is such that under the action of the wind force at the cold air inlet of the cold aisle, the lower surface of the flexible film will be inflated upward to form the symmetrical arc-shaped curved surface structure, so as to guide the upward airflow to flow better to both sides, improve the airflow organization inside the cold aisle, and improve the balanced cooling effect on the cabinet. When the staff enters the cold aisle, the connecting rod can be adjusted upward to the upper position (see Figure 6 ) through the lifting adjusting mechanism, so as to avoid interference with the operation of the staff; the connecting rod can be controlled to descend after the staff leaves. Therefore, not only the airflow organization inside the cold aisle can be better improved, but also the operation of the staff can be better avoided.

[0057] The lifting adjusting mechanism (see Figures 2-4) including horizontal installation on the support frame 6 on the wire slot, wire slot including along the length direction is arranged in the cold channel upper end two sides side edge bus slot 7, still including along the cold channel width direction is arranged a plurality of sub line slot 8, sub line slot 8 both ends and bus slot 7 are connected and are arranged, bus slot 7 both ends have two transverse extension 9 that are vertically extended inward along the cold channel width direction, the drive sub line 10 is arranged in the sub line slot 8, the drive sub line 10 intermediate position passes through the opening in the middle of the sub line slot 8 and is connected downward and the connecting rod 5, the drive sub line 10 both ends are fixedly connected on the drive bus 11 in the bus slot, the drive bus 11 respective both ends extend outward from the bus slot and are respectively wrapped and connected on a wire reel 12 located at the extension segment outside the bus slot both ends, the wire reel 12 is rotatably installed on the support frame by the wire reel rotation shaft that is horizontally arranged along the length direction of the cold channel, the wire reel and the support frame are further installed with reset clockwork spring (not shown in the drawing), one end of the wire reel rotation shaft extends outward from the wire reel and is installed with a drive gear 13 by one-way coupling, the drive gear 13 and the rack 14 that is horizontally installed on the upper end of the split type cold channel door are engaged.

[0058] Thus, when the operator needs to enter the cold channel interior operation, the cold channel door in any end direction is controlled to open (see Figure 4 ), the cold channel door on both sides of the end is opened by translation, so that the rack on it drives the drive gear to rotate, and then the wire reel is driven to rotate through the one-way coupling. Thus, the wire reel on the end is rotated to pull the drive bus, and the wire reel on the other end is reversely rotated to make the bus be pulled to the starting end, and the drive sub line is pulled to move together in the process that the bus is pulled to one end, and then the connecting rod is pulled up (see Figure 6 ), to avoid interference to the operator. When the wire reel on the other end is reversely rotated, the reverse rotation is not transmitted to the corresponding drive gear due to the one-way coupling, so the cold channel door on the other end can remain closed. When the operator exits the cold channel after operation, the cold channel door is closed, and the action of the cold channel door closing is not transmitted to the wire reel due to the one-way coupling, but the wire reel can be reset by the reset clockwork spring to reset the bus, and the sub line is reset under the action of the bus and the self weight of the connecting rod. Thus, the lifting adjustment mechanism can realize automatic lifting adjustment of the connecting rod by opening and closing of the cold channel door, and the opening and closing of the cold channel doors on both ends of the cold channel do not interfere with each other.

[0059] Wherein, the corner in the wire slot is further provided with a fixed pulley 15.

[0060] Thus, it is more convenient to smoothly pull the drive bus and the drive sub line.

[0061] Wherein, each sub line slot 8 is uniformly distributed along the length direction of the cold channel.

[0062] In this way, the tension of the pull wire is more balanced.

[0063] The connecting rod 5 comprises an outer connecting rod 51 in the form of a sleeve structure and an inner connecting rod 52 sleeved inside the outer connecting rod 51. The outer connecting rod 51 is connected to the transmission branch 10 at the middle of the upper end thereof, and the upper outer side of the outer connecting rod 51 is connected to the lower end of the flexible film 4 at the corresponding side. An inferior-arc notch 53 is arranged at the other side of the outer connecting rod 51, and the upper outer side of the inner connecting rod 52 at the corresponding side is connected to the lower end of the flexible film 4 through the inferior-arc notch 53 of the outer connecting rod. Figures 7-9 The transverse section of the inner connecting rod 52 is composed of an inferior-arc segment and a straight segment. In the working state (see Figure 8 ), the plane where the straight segment of the inner connecting rod is located is wrapped inside the outer connecting rod 51 and faces the direction of the flexible film connected to the outer connecting rod. A first magnet 54 is arranged on the inner connecting rod at the lower end position of the straight segment. Figure 9 When the flexible film connected to the inner connecting rod 52 is in the state of being outwardly and downwardly positioned (see ), the inner connecting rod 52 is just rotated to the upper end of the straight segment to enter the area of the inferior-arc notch 53 of the outer connecting rod. In this position state, a second magnet 55 repelling the first magnet 54 is arranged on the inner wall of the outer connecting rod.

[0064] In the working state (see Figure 5 and Figure 8 ), the flexible film is blown upward by the cold air to bulge, so that the lower end of the flexible film at both sides is in the position state of being pulled upward, and the inner connecting rod can be well maintained inside the outer connecting rod. Figure 9 When the flexible film at both sides falls downward (see Figure 7 ), the outer connecting rod will not rotate under the action of the transmission branch, while the inner connecting rod will be rotated by the corresponding flexible film to make the upper end of the straight segment of the inner connecting rod rotate out of the inferior-arc notch of the outer connecting rod. At the same time, the first magnet and the second magnet are rotated to the position of repelling each other, so that the inner connecting rod can be dropped out of the outer connecting rod to be unlocked (see The reason for designing this structure is that in most data center rooms, an automatic gas fire extinguishing system is arranged at the top of the room, and the density of the extinguishing gas is greater than that of air. When a fire occurs, the cold aisle cold air will be automatically closed, and the extinguishing medium will be sprayed downward from the top of the room. At this time, under the action of gravity and the downward impact of the extinguishing medium, the flexible film will change to a downwardly convex state. In this way, under the above structure, the connecting rod can be automatically unlocked and separated, so that the extinguishing medium can better enter the cold aisle and better achieve fire extinguishing.

[0065] The upper end of the connecting rod 5 is further provided with a line combiner 17 at a distance, and the transmission branch 10 is connected to the connecting rod through the line combiner 17.

[0066] Thus, the wire comber cannot be pulled any more when it is pulled to the topmost position, so that the connecting rod always leaves a distance from the top of the cold aisle. Thus, the flexible membrane at both ends of the connecting rod will still maintain an upward state under the action of cold air, avoiding the self-unlocking of the connecting rod. In practice, the wire comber 17 includes a first pressing block and a second pressing block, each of which is provided with a pressing surface of elastic material and is pressed against each other, a connecting bolt vertically penetrating the pressing surfaces is arranged between the first pressing block and the second pressing block to realize the mutual fixation of the two, and the transmission branch is pressed between the pressing surfaces. Thus, when needed, the connecting bolt can be conveniently loosened to adjust the position of the transmission branch, and then adjust the distance between the wire comber and the connecting rod below, so that the connecting rod can be in the appropriate position when pulled up, which is just out of the height range of the staff while leaving a distance from the top of the cold aisle.

Claims

1. A data center cold aisle structure, the cold aisle being formed between two rows of cabinets horizontally spaced apart, a cold air inlet being provided on the ground below the cold aisle and connected with a cold air inlet passage below the ground, and a shielding member being provided on the top of the cabinets on both sides above the cold aisle, characterized in that, The vertical section of the shielding member in working state is shaped like a symmetric arc surface structure with the middle part extending downward to the middle position of the cold channel and the two sides extending obliquely upward to the top of the cabinet. The adjustable shielding flow guide device is installed on the top of the cold channel and includes two flexible films symmetrically installed on the two sides of the top of the cold channel.

2. A data center cold aisle structure as defined in claim 1, wherein, The shielding member is made of transparent material.

3. A data center cold aisle structure as defined in claim 1, wherein, The cold air inlets are evenly distributed in multiple rows along the width direction of the cold channel, and the air flow of the cold air inlets gradually decreases from the middle to the two sides along the width direction.

4. A data center cold aisle structure as defined in claim 1, wherein, Cold channel doors are installed at the front and rear ends of the cold channel. The louver structure with adjustable louver angle is installed on the cold channel door.

5. A data center cold aisle structure as defined in claim 1, wherein, The lifting adjustment mechanism includes a wire slot horizontally installed on the support frame.

6. A data center cold aisle structure as defined in claim 5, wherein, A fixed pulley is installed at the corner of the wire slot.

7. A data center cold aisle structure as defined in claim 5, wherein, The wire slots are evenly distributed along the length direction of the cold channel.

8. A data center cold aisle structure as defined in claim 5, wherein, The connecting rod comprises an outer connecting rod of sleeve structure and an inner connecting rod sleeved inside the outer connecting rod, the outer connecting rod is connected with the transmission branch line in the middle of the upper end, the outer connecting rod is connected with the lower end of the flexible film on the upper side of the outer connecting rod and the corresponding side, the other side of the outer connecting rod is provided with a poor arc notch, the inner connecting rod is connected with the lower end of the flexible film on the upper side of the corresponding side of the outer connecting rod through the poor arc notch of the outer connecting rod and the lower end of the flexible film on the side; the transverse section of the inner connecting rod is composed of a good arc and a straight line, the plane where the straight line of the inner connecting rod is located is wrapped inside the outer connecting rod and faces the direction of the flexible film connected with the outer connecting rod in the working state, a first magnet is further arranged on the inner connecting rod at the lower end position of the straight line; when the flexible film connected with the inner connecting rod is in the outward and downward position state, the inner connecting rod is just rotated to the upper end of the straight line to enter the poor arc notch area of the outer connecting rod, and a second magnet repelling the first magnet is arranged on the inner wall of the outer connecting rod corresponding to the first magnet on the inner connecting rod in this position state; A line combiner is further arranged on the upper end of the connecting rod at a distance, and the transmission branch line is connected with the connecting rod through the line combiner.

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