CN212544344U

CN212544344U - Distributed hot channel closed server cabinet

Info

Publication number: CN212544344U
Application number: CN202021906565.3U
Authority: CN
Inventors: 白本通; 许军强; 吕政举
Original assignee: Shenzhen Esin Technology Co ltd
Current assignee: Shenzhen Esin Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-02-12
Anticipated expiration: 2030-09-03

Abstract

The utility model relates to a distributing type hot aisle seals server rack, it includes frame, preceding mesh door plant, back airtight door plant, side door board, preceding left shrouding, preceding right shrouding, four vertical direction hole strips, a plurality of support strip, hot return hood, upper cover plate, lower plate, and under the state on the support strip was put to the server, frame, upper cover plate, lower plate, preceding left shrouding, preceding right shrouding, server connection fixed part, preceding mesh door plant had formed one together and sealed air conditioning input buffer memory passageway. The lateral cross beam of the traditional server cabinet is eliminated, the supporting force is ensured by bending, widening and thickening the vertical square hole strips, and the problem of interference between a server and a PDU (protocol data Unit) is solved; under the state that the server is filled on the supporting strip, the frame, the upper cover plate, the lower base plate, the front left sealing plate, the front right sealing plate, the server connecting fixing part and the front mesh door plate form a closed air conditioning input buffer channel together, and air conditioning can only completely enter the server, so that the utilization rate of cooling capacity is improved.

Description

Distributed hot channel closed server cabinet

The utility model relates to a data center hardware product series, concretely relates to server rack is sealed to distributing type hot aisle and server rack cooling system is sealed to distributing type hot aisle.

Background

At present, square hole strips for fixing a server are generally fixed on an upper frame and a lower frame of a mainstream section server cabinet, because the square hole strips with limited space are designed to be narrow in the transverse left-right direction, in order to ensure the strength required by bearing the server, two beams are required to be used for reinforcing the middle of the square hole strips, and a PDU (protocol data Unit) and a weak current slot are also required to be fixed on the beams and exceed the space range of the server to enter and exit, when the server with larger length and size is stored and installed or equipment is placed from the back, the PDU and the wire slot need to be removed, otherwise the PDU and the wire slot cannot be placed; meanwhile, the side beams are arranged on the side edges, so that the square hole strips are troublesome to seal in a cold-hot isolation mode.

The conventional cabinet set usually enters cold air from a mesh door in front of the cabinet and exits hot air from a mesh door behind the cabinet, and the design of isolating cold air channels and hot air channels of the conventional cabinet set has two modes: the first type is a closed cold channel, hot air is discharged from the back of the cabinet, the temperature of the whole data center space is high, and the personnel maintenance environment is severe; the second is a closed hot aisle to which hot air is exhausted from the rear of the cabinet, but personnel still get hot as they enter the hot aisle. The cold and hot isolation effect of two kinds of schemes all can receive the influence because of personnel's business turn over, and overall efficiency is also not high.

The air outlet temperature of the conventional server is 40-50 ℃, the better the cold and heat insulation is, the higher the return air temperature is, the higher the efficiency of the air conditioning system is; the common method for improving the return air temperature is to perform cabinet-level personalized air inlet and outlet control, while the conventional server cabinet has higher difficulty in personalized return air control and poorer effect, and influences the cold and hot isolation effect and the hot air collection efficiency.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a distributed hot channel closed server cabinet, the side cross beam of the conventional server cabinet is cancelled, the front installation square hole surface of the original L-shaped vertical square hole strip is directly extended to the position of a side door, and then the square hole surface used for installing a server supporting strip is formed by bending back, the square hole strip is increased by deepening and bent, the transverse bending strength of the square hole strip is ten times higher than the original transverse bending strength, so that the square hole strip becomes an assembly with the highest internal strength of the cabinet, and meanwhile, the square hole strip is easy to disassemble, so that the square hole strip is not required to be reinforced by the cross beam, and can be used; because the front vertical groove and the rear vertical groove are formed at the same time, the problem of interference between the server and the PDU is solved, the PDU and the weak current wire groove can be arranged in the front and the rear, and the requirement of leading strong current and weak current of the server in the future can be met; under the state that the server is fully arranged on the support strip, the front hole strip, the optical fiber wiring line arranging plate, the lower bottom plate, the front left sealing plate, the front right sealing plate and the square hole strip form a closed cold channel together, and the cold channel is not isolated by the sealing plates independently; the rear frame, the rear closed heat insulation door plate, the lower bottom plate, the side door plate and the hot return hood form a closed hot channel, and meanwhile, a temperature control speed regulating fan is arranged below the hot return hood, so that individualized return air control can be performed, and the outlet air temperature of each server cabinet can reach the preset temperature; meanwhile, the distributed hot air channel is closed, so that the maintenance operation of personnel at high temperature can be avoided, and the air temperature and the air pressure of the whole cold and hot channel cannot be influenced by opening the cabinet door; through setting up integration wiring reason line board, can install the optic fibre wire jumper fast, business turn over net twine, optic fibre, labour saving and time saving, the U bit space in the rack also can be saved to optic fibre reason line board overhead simultaneously for more servers can be placed to the rack.

The utility model discloses the technical scheme of implementation case as follows:

a server cabinet comprises a frame, a front mesh door panel, a rear closed door panel, a side door panel, a front left sealing panel, a front right sealing panel, four vertical direction hole strips, a plurality of support strips, a hot return air cap, an upper cover plate and a lower base plate, wherein the front mesh door panel is installed in front of the frame, the side door panel is installed on the side surface of the frame, the rear closed door panel is installed behind the frame, the upper cover plate is installed at the front end of the upper surface of the frame, the hot return air cap is installed at the rear end of the upper surface of the frame, and the lower base plate is installed below the frame;

the frame comprises two front upright posts which are symmetrical to each other, two rear upright posts which are symmetrical to each other, a lower frame and an upper frame, the hot air return cap is fixed at the rear end of the upper frame, the upper ends of the four vertical direction hole strips are fixedly connected with the lower end of the upper frame, and the lower ends of the four vertical direction hole strips are fixedly connected with the upper end of the lower frame; the vertical direction hole strips are provided with server connecting fixing parts, bending reinforcing parts and supporting strip connecting fixing parts, the supporting strips are fixed on the supporting strip connecting fixing parts, the bending reinforcing parts are tightly attached to the side door plates, the front ends of the front left sealing plates are connected with the front upright posts, the rear ends of the front left sealing plates are connected with the server connecting fixing parts, the upper ends of the front left sealing plates are connected with the lower end of the upper frame, the lower ends of the front left sealing plates are connected with the upper end of the lower frame, the front ends of the front right sealing plates are connected with the front upright posts, the rear ends of the front right sealing plates are connected with the server connecting fixing parts, the upper ends of the front right sealing plates are connected with the lower end of the upper frame, and the lower ends of the front right sealing plates are connected with the;

under the state that the server is filled on the supporting strip, the frame, the upper cover plate, the lower base plate, the front left sealing plate, the front right sealing plate, the server connecting fixing part and the front mesh door plate form a closed cold air input cache channel together, and the frame, the rear closed door plate, the lower base plate, the side door plate, the server connecting fixing part and the hot return hood form a closed hot air output channel together.

Preferably, the holding strip is provided with a plurality of spiral holes and a plurality of buckles, and the buckles are buckled on the direction holes on the vertical direction hole strip.

Preferably, the cabinet further comprises a speed regulation fan, the speed regulation fan is fixed in the rear end of the upper frame, and the hot return hood is located above the speed regulation fan.

Preferably, the cabinet further comprises an optical fiber wiring and wiring board, the optical fiber wiring and wiring board is fixed at the front end of the upper frame, and the optical fiber wiring and wiring board is provided with a plurality of optical fiber wiring ports.

The utility model provides a server rack cooling system is sealed to distributing type hot aisle, the system includes server rack, hot-blast pipeline, computer lab air conditioner are sealed to distributing type hot aisle, and is a plurality of server rack is sealed to distributing type hot aisle connects into side by side and is two rows or two mirror symmetry distributions, and is a plurality of server rack is sealed to distributing type hot aisle hot return hood computer lab air conditioner return opening with hot-blast pipeline intercommunication, it is a plurality of hot-blast warp in the server rack hot return hood discharges to in the hot-blast pipeline.

Compared with the prior art, the beneficial effects of the utility model reside in that: the lateral cross beam of the traditional server cabinet is eliminated, the supporting force is ensured by bending, widening and thickening the vertical square hole strips, and the problem of interference between a server and a PDU (protocol data Unit) is solved; when the server is fully arranged on the supporting strip, the frame, the upper cover plate, the lower bottom plate, the front left sealing plate, the front right sealing plate, the server connecting fixing part and the front mesh door plate form a closed cold air input cache channel together, and cold air can only completely enter the server, so that the cold energy utilization rate is improved; when the server is fully arranged on the supporting strip, the frame, the rear closed door plate, the lower bottom plate, the side door plate, the server connecting and fixing part and the hot air cap form a closed hot air output channel together, so that the maintenance operation of personnel at high temperature is avoided, and the safety accidents are reduced; by arranging the integrated wiring plate, optical fiber wiring can be quickly installed, and time and labor are saved; meanwhile, the development of the front PDU of the server can be met.

Drawings

Fig. 1 is a schematic structural diagram of a server cabinet according to the present invention;

fig. 2 is a schematic structural diagram of a frame of a server cabinet according to the present invention;

fig. 3 is a schematic structural diagram of a vertical square hole strip of a server cabinet according to the present invention;

FIG. 4 is an enlarged schematic view at A in FIG. 1;

fig. 5 is a schematic structural diagram of a server cabinet according to the present invention;

fig. 6 is a schematic structural diagram of a server cabinet according to the present invention;

fig. 7 is a schematic structural diagram of a wiring line management board of a server cabinet according to the present invention;

FIG. 8 is a schematic diagram of a distributed hot aisle containment server rack cooling system of the present invention;

fig. 9 is a schematic diagram of the application of the distributed hot aisle enclosure server cabinet cooling system and the room air conditioner according to the present invention;

fig. 10 is a schematic diagram of an application of the distributed hot aisle enclosure server cabinet cooling system and the inter-row air conditioner according to the present invention;

10. a frame; 111. a front pillar; 113. a rear pillar; 114. a lower frame; 115. putting the frame on; 12. vertical direction hole strips; 121. a server connection section; 122. bending the reinforcing part; 123. a supporting strip connecting part; 13. a front left seal plate; 14. a front right sealing plate; 20. a front mesh door panel; 30. a side door panel; 40. supporting the strip; 43. a helical bore; 44. buckling; 50. a hot return air cap; 60. an upper cover plate; 61. an opening; 70. a server cabinet; 80. a speed-adjustable fan; 90. an optical fiber wiring plate; 91. an optical fiber connection port; 100. a hot air duct; 110. room air conditioning; 120. an inter-train air conditioner; 130. and (5) underground cold channels.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example one

As shown in fig. 1, fig. 1 is the utility model provides a structural schematic diagram of server rack, it includes frame 10, preceding mesh door plant 20, the airtight door plant in back, side door board 30, preceding left shrouding 13, preceding right shrouding 14, four vertical direction hole strips 12, a plurality of support strip 40, hot return air cap 50, upper cover plate 60, the lower plate, wherein, preceding mesh door plant 20 is installed in the front of frame 10, side door board 30 installs the side at frame 10, the airtight door plant in back at frame 10 in back, the lower plate is installed below frame 10, the front end on frame 10 is installed to upper cover plate 60, the rear end on frame 10 is installed to hot return air cap 50. The fan in the server in the rack is opened, and during cold wind got into in the rack by the server louvre from preceding mesh door plant, flowed out through hot return air cap discharge rack from the server louvre after cooling down the server. The upper air outlet of the front air inlet rear end is realized by arranging a mesh plate in front of the cabinet, arranging a sealing plate at the rear end and arranging a hot air return cap at the rear of the upper end.

As shown in fig. 1, the support strip is fixed on two vertical direction hole strips 12 on the same side, in the server, the support strip plays a role of supporting the server, along with the application of a large amount of high-power servers, the weight of the server is also getting bigger and bigger, in order to improve the bearing capacity, the traditional server is basically the combination of the support strip and the laminate, the support strip and the laminate respectively bear a part of the weight, however, along with the increasing of the number of servers stored in the cabinet and the increasing of the number of laminates, the cost of the cabinet is obviously improved, in the utility model, the bearing capacity of the laminate is replaced by the bearing capacity of the support strip, the cost of the cabinet is greatly reduced, specifically, as shown in fig. 4, the support strip 40 is provided with a plurality of spiral holes 43 and a plurality of buckles 44, the support strip 40 is connected with the vertical direction hole strips through the spiral holes by screws, the buckles 44 are arranged on the direction holes on the vertical direction hole strips, therefore, the connecting force between the support strip and the vertical hole strip is increased, and the traditional laminated plate is replaced.

In the whole server cabinet, the support part for bearing the server is a vertical direction hole strip 12 which is connected on a frame 10, the bearing performance of the server cabinet is determined, in the traditional server, the L-shaped vertical square hole strip is further reinforced by arranging a transverse side beam, in the utility model, the front installation square hole surface of the vertical square hole strip is directly extended to a side door position and then is bent back to form the square hole surface for installing the server supporting strip, the support force is increased by bending, widening and thickening the vertical square hole strip, and particularly, as shown in figure 3, the vertical square hole strip is provided with a server connecting and fixing part 121, a bending and reinforcing part 122 and a supporting strip connecting and fixing part 123, a plurality of supporting strips 40 are fixed on the supporting strip connecting and fixing part 123, the bending and reinforcing part 122 is tightly attached to a side door plate 30, the server is connected on the server connecting and fixing part, bend through setting up and strengthen the holding power that the portion has increased whole vertical square hole strip, be connected the support between vertical square hole strip and the frame. Through deepening increasing and bending, the horizontal bending strength of square hole strip is higher than original tens of times, becomes the subassembly that rack internal strength is the highest, still easily dismantles simultaneously, just so not only need not the reuse crossbeam to strengthen, still can be used to other subassemblies such as fixed side door.

As for the framework of the frame, specifically, as shown in fig. 2, the frame 10 includes two front uprights 111 symmetrical to each other, two rear uprights 113 symmetrical to each other, a lower frame 114, and an upper frame 115, the hot return hood 50 is fixed to the rear end of the upper frame 115, the upper ends of the four vertical direction hole bars 12 are fixedly connected to the lower end of the upper frame 115, the lower ends of the four vertical direction hole bars 12 are fixedly connected to the upper end of the lower frame 14, the front end of the front left sealing plate 13 is connected to the front uprights 111, the rear end of the front left sealing plate 14 is connected to the server connecting fixing portion 121, the upper end of the front left sealing plate 13 is connected to the lower end of the upper frame 115, the lower end of the front left sealing plate 13 is connected to the upper end of the lower frame 114, the front end of the front right sealing plate 14 is connected to the front uprights 111, the rear end of the front right sealing plate 14 is connected to the server connecting fixing portion 121, the.

Under the state that the server is fully arranged on the supporting strip, the frame, the upper cover plate, the lower bottom plate, the front left sealing plate, the front right sealing plate, the server connecting fixing part and the front mesh door plate form a closed cold air input cache channel together, and the frame, the rear closed door plate, the lower bottom plate, the side door plate, the server connecting fixing part and the hot air cap form a closed hot air output channel together. When the server runs, a fan in the server sucks cold air in the closed cold air input cache channel into a heat dissipation hole of the server, dissipates heat of the server and outputs the heat to a closed hot air output channel; when the server is not stored in the cabinet temporarily, a sealing plate can be arranged at the connecting part of the server to retain cold air in the closed cold air input buffer channel; because the side door board is hugged closely to the reinforcement portion of bending of vertical square hole strip, has guaranteed the seamless space in rack both sides for seal an independent enclosure space of steam output channel flavor, guaranteed that cold wind does not flow to and cluster in sealing steam output channel, promoted the air conditioning utilization ratio, saved whole data center's consumption.

Server rack in-service use, installation PDU is necessary operation, and traditional server rack is owing to need the side cross beam to consolidate the holding power of vertical square hole strip, and PDU generally installs on the side cross beam of rack rear end, and the upper surface of the outstanding side cross beam of vertical PDU, when the server size of depositing is longer, and server and PDU will produce and interfere, and the utility model discloses in use four vertical direction hole strips to replace the side cross beam, solved the problem of interfering of server and PDU, guaranteed again original and hold in the palm a fixed connection's function. The PDU is installed at the rear end of the cabinet, and the rear end of the cabinet is a hot air exhaust space, so that the temperature of the space is continuously kept at a high temperature state, and the safety and the service life of the PDU are greatly influenced.

In traditional server rack, the entering amount of wind of cold wind is driven by the fan of server, so the unit amount of wind has an upper limit, and along with the massive application of the server of high power, the upper limit of the amount of wind has not satisfied the needs of the air inlet amount of wind, at this moment just needs external power to improve the unit amount of wind, as shown in fig. 5 the utility model discloses in, through set up speed governing fan 80 at hot aisle and hot return air cap junction and increase the unit amount of wind, speed governing fan 80 is fixed in the upper ledge rear end, and hot return air cap is located the speed governing fan top, and the speed governing fan starts, and the suction increases, and the air inlet speed grow, the unit time amount of wind increase, when needs reduce the unit amount of wind, only need turn down the rotational speed of speed governing fan can.

In the server rack, the net twine wiring of server is arranged and is greatly influenced the assembly efficiency of rack, and traditional rack sets up a plurality of evenly spaced connection terminal frames usually on the front column, and the net twine from the top down gradually draws down, and the limit is drawn fixed, and is very time-consuming and energy-consuming, and not pleasing to the eye, specifically, as shown in fig. 6 the utility model discloses in, the rack still includes optic fibre wiring reason line board 90, and optic fibre wiring reason line board is located the upper end that seals air conditioning input buffer memory passageway, specifically, as shown in fig. 7, optic fibre wiring reason line board has a plurality of optic fibre wiring mouth 91, as shown in fig. 5, the upper cover plate front end has opening 61, and the opening part is covered with the brush hair, and the pencil passes the opening and is connected to optic fibre wiring mouth 91, and outside net twine directly inserts the one end at optic fibre wiring mouth, and optic fibre wiring mouth other. The access of a conventional MPO/LC port is met, the arrangement of optical fibers can be rapidly realized by arranging the optical fiber wiring line arranging plate, and time and labor are saved. Through set up the brush hair in opening 61 department, when can guaranteeing that the pencil alternates, guarantee to seal air conditioning input buffer memory passageway and the outside thermal-insulated of rack, guaranteed the utilization ratio of cold volume. Meanwhile, the optical fiber line arranging board is arranged on the cabinet, so that the space of the U position in the cabinet can be saved, and more servers can be placed in the cabinet

Example two

In a data center, a server needs to be cooled by a cooling and heat dissipation system to keep the safe operation of the server, wherein the arrangement of server cabinets and the structural combination of the cooling and heat dissipation system form the structural design key of the whole machine room, and the influence on the power consumption of the machine room is large. The utility model discloses in, provide a distributing type hot aisle seals server cooling system, its server rack with among the embodiment one fuses integrative server to the rack in cool down, specifically, as shown in FIG. 8, a distributing type hot aisle seals server cooling system includes server rack and hot-blast main 100 among a plurality of embodiments one, the hot return hood and the hot-blast main intercommunication of a plurality of server racks. A plurality of server cabinets can be placed by the rear end side by side in biserial rear end, like this, hot-blast main communicates the hot return air cap of server cabinet with the space of minimum for hot-blast among the server cabinet is concentrated and is discharged to hot-blast main, concentrates and discharge to the data center computer lab outside. Because the hot-blast main is above the rack, maintainer can carry out the operation below the hot-blast main, has avoided high temperature environment operation, has reduced the probability that industrial accident takes place. Meanwhile, the cabinet door is opened, so that the air temperature and the air pressure of the whole cold and hot channel cannot be influenced.

The utility model provides a distributed hot passageway seals server cooling system can fuse the cooperation with room space or the air conditioner between being listed as and use, as shown in fig. 9, fig. 9 is the application of distributed hot passageway seal server cooling system and room air conditioner schematic diagram, a plurality of server rack rear ends are leaned on the rear end to divide two and are placed side by side, 100 one end of hot-blast main and the hot return hood 50 of a plurality of server racks 70 are connected, one end intercommunication room air conditioner 110 air intake, hot-blast cooling is carried in the room air conditioner through hot-blast main concentrates, the cold air after the cooling flows back whole room, fan suction cold air in the server cools down in entering the server through the preceding mesh plate in the server rack, collect hot return hood and arrange to the hot-blast main, so circulate. As shown in fig. 10, fig. 10 is a schematic view of a distributed hot channel closed server cooling system and an inter-row air conditioner application, the inter-row air conditioners 120 are arranged in two rows of server cabinets at intervals, one end of a hot air pipeline 100 is connected with hot return hoods 50 of a plurality of server cabinets 70, the other end of the hot air pipeline is communicated with an air inlet at the upper end of the inter-row air conditioners 120, hot air is intensively conveyed into the inter-row air conditioners 120 through the hot air pipeline 100 for cooling, cooled air after cooling is conveyed to the front of each server cabinet through an underground cold channel 130, a fan in a server sucks cold air to enter the server through a front mesh plate in the server cabinet for cooling, the cold air is collected to the hot return hoods to be discharged into the hot air.

The utility model cancels the side beam of the traditional server cabinet, ensures the supporting force by bending, widening, deepening and thickening the vertical square hole strip, and solves the problem of the interference between the server and the PDU; when the server is fully arranged on the supporting strip, the frame, the upper cover plate, the lower bottom plate, the front left sealing plate, the front right sealing plate, the server connecting fixing part and the front mesh door plate form a closed cold air input cache channel together, and cold air can only completely enter the server, so that the cold energy utilization rate is improved; when the server is fully arranged on the supporting strip, the frame, the rear closed door plate, the lower bottom plate, the side door plate, the server connecting and fixing part and the hot air cap form a closed hot air output channel together, so that the maintenance operation of personnel at high temperature is avoided, and the safety accidents are reduced; by arranging the integrated wiring plate, optical fiber wiring can be quickly installed, and time and labor are saved; meanwhile, the development of the front PDU of the server can be met.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a server rack is sealed to distributing type hot aisle which characterized in that:

the cabinet comprises a frame, a front mesh door panel, a rear closed door panel, a side door panel, a front left sealing plate, a front right sealing plate, four vertical direction hole strips, a plurality of supporting strips, a hot return hood, an upper cover plate and a lower base plate, wherein the front mesh door panel is arranged in front of the frame, the side door panel is arranged on the side surface of the frame, the rear closed door panel is arranged behind the frame, the upper cover plate is arranged at the front end of the upper surface of the frame, the hot return hood is arranged at the rear end of the upper surface of the frame, and the lower base plate is arranged below the frame;

2. The cabinet of claim 1, wherein: the rack still includes optic fibre wiring reason line board, optic fibre wiring reason line board is located seal the upper end in the air conditioning input buffer channel, optic fibre wiring reason line board has a plurality of optic fibre wiring mouths, the upper cover plate front end has the opening, the brush hair is covered with to the opening part, and the pencil passes the opening is connected to optic fibre wiring mouth.

3. The cabinet of claim 2, wherein: the cabinet further comprises a speed regulation fan, the speed regulation fan is fixed in the rear end of the upper frame, and the hot return hood is located above the speed regulation fan.

4. The cabinet of claim 3, wherein: the support strip is provided with a buckle which is clamped and hung on the direction hole on the vertical direction hole strip.

5. A distributed hot aisle enclosure server cabinet cooling system characterized in that: the system comprises a plurality of distributed heat channel closed server cabinets, a hot air pipeline and a machine room air conditioner, wherein the distributed heat channel closed server cabinets are connected in parallel to form two rows or two columns of mirror symmetry distribution, a plurality of hot air return caps of the distributed heat channel closed server cabinets and air return openings of the machine room air conditioner are communicated with the hot air pipeline, and hot air in the server cabinets is discharged into the hot air pipeline through the hot air return caps.