CN111683496A - An emergency ventilation system for a cross-flow single-cabinet data center - Google Patents

Abstract

The invention discloses a through-flow type single cabinet data center emergency ventilation system, which belongs to the technical field of single cabinet data centers and comprises a cabinet and a refrigeration air conditioner, wherein the refrigeration air conditioner is communicated with the interior of the cabinet, an emergency cold channel enclosure is arranged on the front side of the cabinet, a front sealing glass door is arranged on the front side of the emergency cold channel enclosure, a rear side hole door with heat dissipation holes is arranged on the rear side of the cabinet, and a through-flow ventilation device is arranged at the top of the emergency cold channel enclosure. When the refrigeration air conditioner fails, the through-flow ventilation device arranged at the top blows external cold air into the cabinet from top to bottom, so that uniform heat dissipation of all heat generating equipment in the cabinet is effectively ensured, hot air is discharged through the heat dissipation holes in the rear side hole door, the risk of downtime is avoided, the emergency time of the data center is prolonged, and the safety and the reliability of the data center in use are ensured; the through-flow air inlet mode has the advantages of large air quantity, long air supply distance, low noise, small duty and the like, and ensures good heat dissipation effect and lower installation cost.

Description

An emergency ventilation system for a cross-flow single-cabinet data center

technical field

The invention belongs to the technical field of single-cabinet data centers, in particular to an emergency ventilation system for a tubular single-cabinet data center.

Background technique

With the rapid development of the electronic information industry, the development of data centers has also entered a new stage. In particular, there are more and more applications in single-cabinet data centers; a single-cabinet data center is a standard module that can be built as a data center, integrating computing, storage, network resources and other IT facilities into one module for easy deployment and expansion. A single-rack data center is equipped with systems such as IT servers, power distribution, monitoring, and air-conditioning cooling. Normally, the air-conditioning provides the system with a cold source and cools the heat-generating equipment. However, when the cooling system fails, the single-rack The temperature in the data center will rise rapidly, and the failure of the cooling system to start in a short time will inevitably affect the safe operation of the data center. The traditional solution is to set up multiple axial fans on the cabinet to draw natural air into the cold aisle for cooling of servers and power distribution. However, due to space constraints, the axial fans selected in the industry are small in size and large in number. , In order to achieve the required air volume, the motor speed must be increased to a high speed, which will cause a large fan rotation noise, and the cooling effect of the axial fan is not good, which cannot guarantee the reliability and stability of the single-rack data center when the cooling system fails. run.

SUMMARY OF THE INVENTION

In order to solve the problem that when the cooling system of the current single-rack data center fails, it will inevitably affect the safe operation of the data center. Traditionally, multiple axial fans are set up to draw natural air into the cold aisle for heat dissipation. The motor of the flow fan will run at a high speed, resulting in larger fan rotation noise, and the cooling and heat dissipation effect of the axial flow fan is not ideal. The present invention provides an emergency ventilation system for a cross-flow single-cabinet data center.

The present invention is achieved through the following technical solutions.

A cross-flow single-cabinet data center emergency ventilation system includes a cabinet and a refrigeration air conditioner, the refrigeration air conditioner is communicated with the inside of the cabinet, an emergency cold aisle enclosure is provided on the front side of the cabinet, and the emergency cold aisle enclosure The front side is provided with a front sealing glass door, the rear side of the cabinet is provided with a rear side hole door with heat dissipation holes, and a cross-flow ventilation device is provided on the top of the emergency cold aisle enclosure.

A further improvement of the present invention is that the above-mentioned cross-flow ventilation device includes a cover that is sealed and installed with the top of the emergency cold aisle enclosure, and a cross-flow air duct housing is provided on the lower side of the cover, and the cross-flow air duct housing is inside the cover. A cross-flow fan is provided. Bearings are installed at both ends of the cross-flow fan. The bearings are connected and installed with the cover through the bearing gland. One end of the cross-flow fan is driven and connected to a drive motor. The drive motor The motor mounting frame is connected and installed with the cover, the cover on the upper side of the cross-flow air duct housing is provided with a grid-shaped air inlet, and the lower part of the cross-flow air duct housing is provided with an air outlet.

A further improvement of the present invention is that an air deflector is rotatably connected to the front side of the air outlet, and a reciprocating push-pull assembly that drives the air deflector to reciprocate is connected to the air deflector.

A further improvement of the present invention is that the above-mentioned reciprocating push-pull assembly includes a telescopic cylinder connecting rod rotatably connected to the lower side of the air deflector, a longitudinal telescopic cylinder I is provided on the lower side of the cover, and the telescopic cylinder connecting rod is far away from the One end of the wind deflector is rotatably connected with the telescopic rod of the telescopic cylinder I.

A further improvement of the present invention is that the above-mentioned reciprocating push-pull assembly includes an eccentric connecting rod rotatably connected to the lower side of the air deflector, the drive motor is a double output shaft structure, and one end of the output shaft is connected to the cross-flow fan. , the output shaft at the other end is driven and connected with a reduction box installed on the cover, the output shaft of the reduction box is provided with an eccentric wheel, and the end of the eccentric wheel connecting rod away from the wind deflector is connected with the eccentric wheel The edge of the wheel is connected in rotation.

A further improvement of the present invention is that the above-mentioned reciprocating push-pull assembly includes a lateral telescopic cylinder II rotatably connected to the wind deflector, and an end of the telescopic cylinder II away from the wind deflector is rotatably connected to a telescopic cylinder mounting plate, so The telescopic cylinder mounting plate is connected and installed with the cover.

A further improvement of the present invention is that the emergency cold passage enclosure includes a frame body with a rectangular frame structure, the left and right sides of the frame body are sealed with side plates, the bottom of the frame body is sealed with a bottom sealing plate, and the sealing plate is sealed at the bottom of the frame body. A cover is mounted sealingly on top of the frame and is padded with a gasket.

A further improvement of the present invention is that, the above-mentioned rear side door is provided with a cooling hole of a louver structure in a rearward and upward direction.

A further improvement of the present invention is that the air outlet at the lower part of the cross-flow air duct housing is inclined backward and downward, and the included angle with the vertical direction is 30-60 degrees.

It can be seen from the above technical solutions that the beneficial effects of the present invention are as follows: 1. When the refrigeration and air-conditioning fails, the cross-flow ventilation device installed on the top is activated, and the cold air from the outside is blown into the cabinet from top to bottom, and the internal components are cleaned. Effective emergency cooling, and exhaust the hot air through the cooling holes on the rear side door to avoid the risk of downtime, improve the emergency time of the data center, and ensure the safety and reliability of the data center in use; The wind mode has the advantages of large air volume, long air supply distance and low noise, which greatly reduces the production and installation costs of the system; and the cross-flow ventilation device is installed on the top, and the cold air blowing in runs through the entire emergency cold aisle enclosure from top to bottom. , effectively ensure the uniform heat dissipation of all heat-generating equipment in the cabinet, and ensure the reliability of the data center operation. 2. The cross-flow fan has large air output, concentrated air, and far-reaching air supply, which can effectively dissipate heat inside the cabinet, and has low noise, reducing the impact on the surrounding environment; The handle on the upper part of the cover lifts the entire cross-flow ventilation device, which can be quickly repaired or replaced, which greatly improves the operation efficiency of inspection and replacement and reduces the impact on normal operation. 3. Push the air deflector to reciprocate at a certain angle on the front side of the air outlet through the reciprocating push-pull component, which can effectively ensure the change of the air outlet direction, increase the air diffusion area, and ensure that all heat-generating equipment inside the cabinet is uniform and effective. Heat dissipation, the heat dissipation effect is better. 4. By controlling the expansion and contraction of the telescopic cylinder I, the telescopic rod of the telescopic cylinder I pushes and pulls the air deflector through the telescopic cylinder connecting rod, so as to realize the reciprocating rotation of the air deflector, ensure the change of the air outlet direction, and increase the air diffusion area. . 5. The reduction box is driven synchronously by the drive motor, and the eccentric wheel is driven to rotate through the output shaft of the reduction box, and the wind deflector is pushed and pulled through the eccentric link on the eccentric wheel to realize the reciprocating rotation of the wind deflector and ensure the air outlet. The change of direction increases the air diffusion area. 6. Install the telescopic cylinder II horizontally through the telescopic cylinder mounting plate, control the expansion and contraction of the telescopic cylinder II, realize the push-pull action of the air deflector, realize the reciprocating rotation of the air deflector, ensure the change of the air outlet direction, and increase the air outlet. Diffusion area. 7. The emergency cold aisle enclosure is modularly designed and installed, which is convenient for disassembly and assembly, easy to implement, stable in structure and good in sealing. 8. The hot air pushed out by the cold air is effectively dissipated through the heat dissipation holes of the louver structure in the backward and upward direction. The hot air rises and the cold air descends, which makes the hot air discharge more smoothly and ensures a good heat dissipation effect inside the cabinet. 9. According to the installation positions of cabinets and internal heat-generating components of different sizes and specifications, select cross-flow air duct housings with different angles of air outlets, which are better applicable to different working conditions and ensure the optimal heat dissipation effect.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the accompanying drawings required in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, which are not relevant to ordinary skills in the art. As far as personnel are concerned, other drawings can also be obtained from these drawings on the premise of no creative work.

FIG. 1 is a schematic structural diagram of a specific embodiment of the present invention.

FIG. 2 is a schematic diagram of a split structure of a specific embodiment of the present invention.

FIG. 3 is a schematic diagram of a split structure of an emergency cold aisle enclosure according to a specific embodiment of the present invention.

4 is a schematic structural diagram of a cross-flow ventilation device according to a specific embodiment of the present invention.

FIG. 5 is a schematic diagram of an installation structure of a cross-flow fan according to a specific embodiment of the present invention.

6 is a schematic cross-sectional view of a cross-flow ventilation device according to a specific embodiment of the present invention.

FIG. 7 is a schematic structural diagram of Example 1 of the reciprocating push-pull assembly according to the specific embodiment of the present invention.

FIG. 8 is a schematic structural diagram of Example 2 of the reciprocating push-pull assembly according to the specific embodiment of the present invention.

FIG. 9 is a schematic structural diagram of Example 3 of the reciprocating push-pull assembly according to the specific embodiment of the present invention.

10 is a schematic cross-sectional view of a rear side door according to an embodiment of the present invention.

In the drawings: 1. Cabinet, 2. Refrigeration and air conditioning, 3. Emergency cold aisle enclosure, 31. Frame, 32. Side panel, 33. Bottom sealing plate, 4. Front glass door, 5. Cross-flow ventilation device , 51, cover, 52, cross-flow air duct housing, 53, cross-flow fan, 54, air inlet, 55, drive motor, 56, bearing, 57, bearing gland, 58, motor mounting frame, 59, air guide Plate, 6. Rear hole door, 7. Telescopic cylinder connecting rod, 8. Telescopic cylinder I, 9. Eccentric wheel connecting rod, 10. Eccentric wheel, 11. Gearbox, 12. Telescopic cylinder II, 13. Telescopic cylinder installation plate.

Detailed ways

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the specific embodiments. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

As shown in the accompanying drawings, an emergency ventilation system for a cross-flow single-cabinet data center includes a cabinet 1 and a refrigeration air conditioner 2. The cold air outlet of the refrigeration air conditioner 2 is communicated with the interior of the cabinet 1. The front side of the cabinet 1 is provided with Emergency cold aisle enclosure 3, the front side of the emergency cold aisle enclosure 3 is provided with a front sealing glass door 4, the rear side of the cabinet 1 is provided with a rear side door 6 with heat dissipation holes, the emergency cold aisle enclosure 3 There is a cross-flow ventilation device 5 on the top.

When the refrigeration and air conditioner 2 fails, the IT server, power distribution unit, and storage unit inside the cabinet 1 will continue to work, so that the temperature inside the cabinet 1 rises rapidly. The temperature monitoring module installed in the cabinet 1 monitors the temperature. When the temperature rises to the set temperature, the cross-flow ventilation device 5 installed on the top is activated, and the cold air from the outside is blown into the cabinet 1 from top to bottom, and the internal components are effectively cooled in an emergency. The heat dissipation holes discharge the hot air, avoid the risk of downtime, improve the emergency time of the data center, and ensure the safety and reliability of the data center in use. In addition, the cross-flow air intake method is adopted, which has the advantages of large air volume, long air supply distance and low noise, which greatly reduces the production and installation costs of the system, and ensures the heat dissipation effect inside the cabinet 1; the cross-flow ventilation device 5 is installed on the top, The cold air blown in runs through the entire emergency cold aisle enclosure 3 from top to bottom, effectively ensuring uniform heat dissipation of all heat-generating equipment in cabinet 1 and ensuring the reliability of data center operation.

Further, the cross-flow ventilation device 5 includes a cover 51 sealed with the top of the emergency cold aisle enclosure 3 . The body 52 is provided with a cross-flow fan 53 , and bearings 56 are installed at both ends of the cross-flow fan 53 . The bearing 56 is connected to the cover 51 through a bearing press cover 57 A drive motor 55 is connected to the drive motor. The drive motor 55 is connected and installed with the cover 51 through the motor mounting frame 58. The cover 51 on the upper side of the cross-flow air duct housing 52 is provided with a grid-shaped air inlet 54. , the lower part of the cross-flow air duct housing 52 is provided with an air outlet. The cross-flow fan 53 is of a closed structure at both ends. The drive motor 55 provides rotational power to the cross-flow fan 53, and the air enters from the upper air inlet 54, and the external cold air passes through the upper cross-flow fan 53 blades and enters the inside of the cross-flow fan 53. , and then pass through the lower cross-flow fan 53 blades, and the air is discharged from the air outlet. The cross-flow fan 53 has a large air output, concentrated air, and far-reaching air supply, effectively dissipating heat inside the cabinet 1, and low noise. environmental impact. The cross-flow air duct housing 52 , the cross-flow fan 53 , and the drive motor 55 are all installed on the lower side of the cover 51 . The cross-flow ventilation device 5 has an overall modular design and is easy to disassemble and assemble. The flow ventilation device 5 can be quickly repaired or replaced, which greatly improves the operation efficiency of inspection and replacement, and reduces the impact on normal operation.

Further, an air deflector 59 is rotatably connected to the front side of the air outlet, and a reciprocating push-pull assembly that drives the air deflector 59 to reciprocate is connected to the air deflector 59 . The reciprocating push-pull assembly pushes the air deflector 59 to reciprocate at a certain angle on the front side of the air outlet, which can effectively ensure the change of the air outlet direction, increase the air diffusion area, and ensure that all heat-generating equipment inside the cabinet 1 is uniform and effective. Heat dissipation, the heat dissipation effect is better.

The specific structure of the reciprocating push-pull assembly can be the following three embodiments.

Example 1

Further, the reciprocating push-pull assembly includes a telescopic cylinder connecting rod 7 rotatably connected to the lower side of the wind deflector 59 , a longitudinal telescopic cylinder I8 is fixedly installed on the lower side of the cover 51 , and the telescopic cylinder connecting rod 7 The end away from the wind deflector 59 is rotatably connected with the telescopic rod of the telescopic cylinder I8. By controlling the expansion and contraction of the telescopic cylinder I8, the telescopic rod of the telescopic cylinder I8 pushes and pulls the air deflector 59 through the telescopic cylinder connecting rod 7, so as to realize the reciprocating rotation of the air deflector 59, ensure the change of the air outlet direction, and increase the air outlet diffusion. This ensures that all the heat-generating devices inside the cabinet 1 are evenly and effectively dissipated, and the heat dissipation effect is better.

Example 2

Further, the reciprocating push-pull assembly includes an eccentric connecting rod 9 rotatably connected to the lower side of the wind deflector 59 , the drive motor 55 is a double output shaft structure, and one output shaft is connected to the cross-flow fan 53 in a driving manner. , the other end of the output shaft is connected to the reduction box 11 installed on the cover 51 , the output shaft of the reduction box 11 is provided with an eccentric wheel 10 , and the eccentric wheel connecting rod 9 is away from the wind deflector 59 One end of the eccentric wheel is rotatably connected to the edge of the eccentric wheel 10 . The reduction box 11 is synchronously driven by the drive motor 55 , and the eccentric wheel 10 is driven to rotate through the output shaft of the reduction box 11 . The reciprocating rotation ensures the change of the air outlet direction, increases the air diffusion area, and ensures even and effective heat dissipation for all the heat-generating equipment inside the cabinet 1, and the heat dissipation effect is better.

Example 3

Further, the reciprocating push-pull assembly includes a horizontal telescopic cylinder II 12 rotatably connected to the wind deflector 59 , and the telescopic cylinder mounting plate 13 is rotatably connected to one end of the telescopic cylinder II 12 away from the wind deflector 59 . The telescopic cylinder mounting plate 13 is connected and installed with the cover 51 . The telescopic cylinder II12 is installed horizontally through the telescopic cylinder mounting plate 13, and the expansion and contraction of the telescopic cylinder II12 is controlled to realize the push-pull action of the wind deflector 59, realize the reciprocating rotation of the wind deflector 59, ensure the change of the air outlet direction, and increase the output The air diffusion area ensures uniform and effective heat dissipation for all heat-generating equipment inside the cabinet 1, and the heat dissipation effect is better.

The telescopic cylinder I8 and the telescopic cylinder II12 in the above-mentioned Embodiment 1 and Embodiment 3 can also be replaced with linear motors that can achieve the same telescopic function. The linear motors are driven by electricity without introducing air pressure or hydraulic power source, which is easier to achieve and drive more Precise and easier to control.

The specific implementation structure of the reciprocating push-pull assembly is not limited to the structures in the above three embodiments, and the link mechanism, cam mechanism, and telescopic mechanism that can complete the reciprocating rotation of the wind deflector 59 are all within the protection scope of the present invention.

Further, the emergency cold channel enclosure 3 includes a frame body 31 of a rectangular frame structure, the left and right sides of the frame body 31 are sealed with side plates 32, and the bottom of the frame body 31 is sealed with a bottom sealing plate 33, so The cover 51 is installed on the top of the frame body 31 in a sealed manner, and is cushioned with a gasket. The emergency cold aisle enclosure 3 has a modular design and installation, which is convenient for disassembly and assembly, easy to implement, stable in structure and good in sealing.

Further, the rear side hole door 6 is provided with heat dissipation holes of a louver structure in a backward and upward direction. The hot air pushed backward by the cold air is effectively dissipated through the heat dissipation holes of the louver structure in the backward and upward direction.

Further, the air outlet at the lower part of the cross-flow air duct housing 52 is inclined backward and downward, and the included angle with the vertical direction is 30-60 degrees. According to the different sizes and specifications of the cabinet 1 and the installation positions of the internal heat-generating components, the cross-flow air duct housing 52 with the air outlet at different angles is selected, which is better applicable to different working conditions and ensures the optimal heat dissipation effect.

In the emergency ventilation system of the tubular single-rack data center, when the refrigerating and air-conditioning 2 is normally cooled, the refrigerating and air-conditioning 2 sends cold air through the cooling air outlet to dissipate heat to the heat-generating equipment in the cabinet 1, so as to ensure the normal and stable operation of the data center. When the refrigeration and air conditioner 2 fails, the heat generated by the internal heat-generating equipment causes the temperature inside the cabinet 1 to rise rapidly. A temperature monitoring module is installed in the cabinet 1. When the temperature rises to a specific set value, the temperature monitoring module transmits the signal. To the control unit, the control unit controls the operation of the drive motor 55, and drives the cross-flow fan 53 to absorb the cold air from the outside. All heat-generating equipment dissipates heat; and at the same time, the control unit controls the reciprocating push-pull assembly to reciprocate the rotation of the air deflector 59 to ensure the change of the air outlet direction, increase the air diffusion area, and ensure uniform and effective heat dissipation to all heat-generating equipment inside the cabinet 1. .

The emergency ventilation system of the cross-flow single-cabinet data center has the advantages of simple structure, convenient disassembly and assembly, and good practicability. When the refrigeration and air-conditioning fails, the cross-flow fan installed on the top can blow cold air from the top to the bottom of the cabinet. , effectively ensure the uniform heat dissipation of all heat-generating equipment in the cabinet, avoid the risk of downtime, improve the emergency time of the data center, and ensure the safety and reliability of the data center in use; The air supply is far, and the noise is low, which reduces the impact on the surrounding environment; the overall modular design of the cross-flow ventilation device is convenient for disassembly and assembly, and the maintenance and replacement efficiency is high. The reciprocating push-pull assembly pushes the air deflector to reciprocate at a certain angle on the front side of the air outlet, which can effectively ensure the change of the air outlet direction, increase the air diffusion area, and ensure uniform and effective heat dissipation for all heat-generating equipment inside the cabinet. The cooling effect is better. The hot air is effectively dissipated through the heat dissipation holes of the louver structure in the backward and upward direction, and the hot air is discharged more smoothly.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments may be referred to each other.

The terms "upper", "lower", "outside", "inside", etc. in the description and claims of the present invention and the above-mentioned drawings, if present, are used to distinguish the relative relationship in position, and are not necessarily qualitative. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A cross-flow single-cabinet data center emergency ventilation system, characterized in that it comprises a cabinet (1) and a refrigeration and air conditioner (2), wherein the refrigeration and air conditioner (2) is communicated with the interior of the cabinet (1), and the The front side of the cabinet (1) is provided with an emergency cold aisle enclosure (3), the front side of the emergency cold aisle enclosure (3) is provided with a front sealing glass door (4), and the rear side of the cabinet (1) is provided with a belt. The rear side hole door (6) of the heat dissipation hole, and the top of the emergency cold aisle enclosure (3) is provided with a cross-flow ventilation device (5). 2. The emergency ventilation system for a cross-flow single-cabinet data center according to claim 1, characterized in that, the cross-flow ventilation device (5) comprises a seal installed in a sealed manner with the top of the emergency cold aisle enclosure (3). A cover (51), a cross-flow air duct housing (52) is provided on the lower side of the cover (51), and a cross-flow fan (53) is arranged in the cross-flow air duct housing (52), and the cross-flow fan (53) Bearings (56) are installed at both ends, the bearings (56) are connected and installed with the cover (51) through the bearing gland (57), and one end of the cross-flow fan (53) is driven and connected with a A drive motor (55), the drive motor (55) is connected and installed with the cover (51) through a motor mounting bracket (58), and the cover (51) on the upper side of the cross-flow air duct housing (52) is mounted on the cover (51). A grid-shaped air inlet (54) is opened, and the lower part of the cross-flow air duct housing (52) is provided with an air outlet. 3 . The emergency ventilation system for a cross-flow single-cabinet data center according to claim 2 , wherein a wind deflector ( 59 ) is rotatably connected to the front side of the air outlet, and the wind deflector ( 59 ) is on the air deflector ( 59 ). A reciprocating push-pull assembly that drives the wind deflector (59) to reciprocate is connected. 4. The emergency ventilation system for a cross-flow single-cabinet data center according to claim 3, wherein the reciprocating push-pull assembly comprises a telescopic cylinder connecting rod (7) rotatably connected to the lower side of the air deflector (59). ), the lower side of the cover (51) is provided with a longitudinal telescopic cylinder I (8), the end of the telescopic cylinder connecting rod (7) away from the wind deflector (59) and the telescopic cylinder I (8) ) of the telescopic rod swivel connection. 5. The emergency ventilation system for a cross-flow single-cabinet data center according to claim 3, wherein the reciprocating push-pull assembly comprises an eccentric link (9) rotatably connected to the lower side of the air deflector (59). ), the drive motor (55) is a double output shaft structure, one end of the output shaft is drivingly connected with the cross-flow fan (53), and the other end of the output shaft is drivingly connected with a reduction box mounted on the cover (51) (11), an eccentric wheel (10) is provided on the output shaft of the reduction box (11), and the end of the eccentric wheel connecting rod (9) away from the wind deflector (59) is connected to the eccentric wheel (10). ) edge rotation connection. 6. The emergency ventilation system for a cross-flow single-cabinet data center according to claim 3, wherein the reciprocating push-pull assembly comprises a transverse telescopic cylinder II (12) rotatably connected to the wind deflector (59). A telescopic cylinder mounting plate (13) is rotatably connected to one end of the telescopic cylinder II (12) away from the wind deflector (59), and the telescopic cylinder mounting plate (13) is connected and installed with the cover (51). . 7 . The emergency ventilation system for a cross-flow single-cabinet data center according to claim 2 , wherein the emergency cold aisle enclosure ( 3 ) comprises a frame body ( 31 ) of a rectangular frame structure, and the frame body ( 31) The left and right sides of the frame body (31) are sealed with side plates (32), the bottom of the frame body (31) is sealed with a bottom cover plate (33), and the cover (51) is sealed and installed on the frame body (31). top with a gasket. 8 . The emergency ventilation system for a cross-flow single-cabinet data center according to claim 1 , wherein the rear side hole door ( 6 ) is provided with cooling holes of a louver structure in a backward and upward direction. 9 . 9. The emergency ventilation system for a cross-flow single-cabinet data center according to claim 2, characterized in that the air outlet at the lower part of the cross-flow air duct housing (52) is inclined backward and downward, and is vertically aligned with the air outlet. The included angle of the directions is 30-60 degrees.

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