Non-return device for inter-column air conditioner, inter-column air conditioner and micro-module data center

Abstract

The utility model provides a non-return device for an inter-column air conditioner, the inter-column air conditioner and a micro-module data center, and relates to the technical field of air conditioning systems, the non-return device comprises a frame body, a blade assembly and a filter screen; the blade assembly is arranged on the face, close to the hot channel, of the frame body, and the filter screen is arranged on the face, close to the cold channel, of the frame body. The blade assembly comprises a plurality of blades arranged in the vertical direction, the adjacent blades are in lap joint, and the blades are used for being opened under the effect of wind power generated in the direction from a hot channel to a cold channel when the inter-column air conditioner is started and closed under the effect of wind power generated in the direction from the cold channel to the hot channel when the inter-column air conditioner is closed. According to the technical scheme, when air in the cold channel flows out of the hot channel through the closed inter-column air conditioner, the blades are closed under the action of wind power, the situation that the air in the cold channel flows out of the hot channel is avoided, and the cooling capacity loss can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning system technology, and in particular to a check device for inter-row air conditioning, an inter-row air conditioning system, and a micro-module data center. Background Technology

[0002] A data center is a physical facility used for the centralized processing, storage, transmission, exchange, and management of information. It typically contains critical equipment such as computer equipment, server equipment, network equipment, and storage devices, and provides critical physical infrastructure such as power supply systems, cooling systems, fire protection systems, and monitoring systems to support the operation of these devices.

[0003] Data centers are major energy consumers, accounting for more than 3% of the nation's annual energy consumption. With the development of AI (Artificial Intelligence), this figure will continue to rise. Besides IT (Information Technology) equipment, air conditioning is the most significant power-consuming equipment in data centers, accounting for over 30% of the total electricity consumption. Therefore, controlling air conditioning power consumption is crucial.

[0004] In-row air conditioning (IOL) is a common type of air conditioning terminal in data centers, primarily used in enclosed cold or hot aisle systems due to its high air delivery efficiency and short air delivery distance. IOL operates by drawing hot air from the back of the aisle into the air conditioner for heat exchange before delivering it to the cold aisle. A typical micro-module data center uses six IOLs in a 5+1 configuration: five in operation and one on standby. This allows for a reduction in the number of air conditioners in operation when IT cooling demand is low. However, because IOLs do not require ductwork, large return air valves cannot be installed. This means that when an air conditioner is turned off, cooling energy can leak from the closed unit due to pressure, reducing cooling efficiency and wasting energy. Utility Model Content

[0005] This utility model was developed to at least partially solve the technical problem in the prior art where cooling energy is lost from the shut-off air conditioner when the in-row air conditioner is turned off, resulting in energy waste.

[0006] According to one aspect of the present invention, a check device for an inter-row air conditioner is provided, comprising: a frame, a blade assembly, and a filter screen; the blade assembly is disposed on the side of the frame near the hot aisle, and the filter screen is disposed on the side of the frame near the cold aisle; the blade assembly includes a plurality of blades arranged vertically, with adjacent blades overlapping each other, for opening under the action of wind force generated from the hot aisle to the cold aisle when the inter-row air conditioner is turned on, and for closing under the action of wind force from the cold aisle to the hot aisle caused when the inter-row air conditioner is turned off.

[0007] Optionally, the frame includes a top frame, a bottom frame, and two side frames; the upper part of each blade is bent outward and the lower part is bent inward; when the blade assembly is closed, the lower inner surface of the previous blade in an adjacent blade is in contact with the upper outer surface of the next blade, the upper edge of the uppermost blade in the blade assembly is in contact with the inner surface of the top frame, and the lower outer surface of the lowermost blade in the blade assembly is in contact with the upper edge of the bottom frame.

[0008] Optionally, the blade assembly further includes multiple rotating mechanisms; each blade has a corresponding rotating mechanism on its inner surface, each rotating mechanism includes two fixed blocks and a rotating shaft, the two fixed blocks are disposed at both ends of the inner surface of the corresponding blade, each fixed block has a first through hole, the rotating shaft passes through the first through holes on the two fixed blocks respectively, and the two ends of the rotating shaft are rotatably connected to the two side frames of the frame respectively.

[0009] Optionally, the fixing block includes a first flat plate portion and a first bent portion; the ends of the first flat plate portion and the first bent portion are connected to form an L-shaped structure, and the first bent portion is provided with the first through hole; and / or, the two fixing blocks in each rotating mechanism are symmetrically arranged.

[0010] Optionally, the blade assembly further includes a transmission mechanism; the transmission mechanism includes multiple transmission blocks and a transmission rod; each blade has a corresponding transmission block on its inner surface, and the transmission rod is rotatably connected to each transmission block.

[0011] Optionally, the transmission block includes a second flat plate, a second bent portion, and a third bent portion; the two ends of the second flat plate are respectively connected to the ends of the second bent portion and the third bent portion; a second through hole is provided on the second bent portion, and the rotating shaft also passes through the second through hole on the second bent portion; and / or, a third through hole is provided on the third bent portion, and the transmission rod is rotatably connected to the third through hole on the third bent portion of each transmission block by bolts.

[0012] Optionally, a fourth through hole is provided on the bottom frame of the frame, the transmission rod extends downward from the fourth through hole on the bottom frame, and the part of the transmission rod outside the bottom frame is hook-shaped.

[0013] According to another aspect of the present invention, an inter-row air conditioner is provided, including a cabinet, an air conditioning assembly disposed within the cabinet, and the aforementioned check device for inter-row air conditioning.

[0014] According to another aspect of the present invention, a micro-module data center is provided, comprising multiple communication cabinets and at least one of the above-mentioned inter-row air conditioners, wherein the communication cabinets and the inter-row air conditioners are arranged in rows, and the inter-row air conditioners are disposed between two adjacent communication cabinets.

[0015] The technical solution provided by this utility model can include the following beneficial effects:

[0016] By installing a check valve on the inter-row air conditioner, when the air conditioner is turned on, the fan draws air from the hot aisle into the air conditioner. The fan opens the blades, allowing cool air to enter the cold aisle. When the air conditioner is turned off, the air from the cold aisle flows out towards the hot aisle through the closed air conditioner. The fan closes the blades, preventing air from flowing out of the hot aisle, thus achieving automatic flow control and preventing coolant loss. Furthermore, the check valve accommodates the existing structure of the inter-row air conditioner and can be directly installed in the original filter location, serving both flow control and filtration functions, effectively reducing retrofit costs.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0019] Figure 1 This is a schematic diagram of airflow short-circuiting in the inter-row air conditioning of a micro-module data center in the prior art;

[0020] Figure 2 A front view of a check device for inter-row air conditioning provided in an embodiment of this utility model;

[0021] Figure 3Rear view of a check device for inter-row air conditioning provided in an embodiment of this utility model;

[0022] Figure 4 A rear view of the check device for inter-row air conditioning with the filter screen removed, provided for an embodiment of this utility model;

[0023] Figure 5 A schematic diagram of a partial structure of a check device for inter-row air conditioning provided in an embodiment of this utility model;

[0024] Figure 6 A front view of adjacent blades provided in an embodiment of this utility model;

[0025] Figure 7 A schematic diagram of the structure of adjacent blades and the transmission block on the back of the blades provided in an embodiment of this utility model;

[0026] Figure 8 A schematic diagram of the blade, fixing block, transmission block and transmission rod provided in an embodiment of this utility model;

[0027] Figure 9 A schematic diagram of the structure of the blade, fixing block, transmission block, rotating shaft and transmission rod provided in an embodiment of this utility model;

[0028] Figure 10 An assembly diagram of the transmission rod and transmission block provided for an embodiment of this utility model;

[0029] Figure 11 A partial enlarged view of the transmission rod provided in an embodiment of this utility model;

[0030] Figure 12 Structural block diagram of the inter-row air conditioner provided in the embodiment of this utility model;

[0031] Figure 13 This is a schematic diagram of the layout of a micro-module data center provided in an embodiment of the present invention.

[0032] In the diagram: 10 – Check valve for inter-row air conditioning; 11 – Frame; 111 – Top frame; 112 – Bottom frame; 113 – Side frame; 12 – Blade assembly; 121 – Blade; 13 – Filter screen; 14 – Fixing block; 141 – First through hole; 15 – Rotating shaft; 16 – Transmission block; 161 – Second through hole; 162 – Third through hole; 17 – Transmission rod; 171 – Hook; 20 – Air conditioning assembly; 30 – Cabinet; 100 – Inter-row air conditioning; 200 – Communication cabinet. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the specific implementation methods of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific implementation methods described herein are for illustration and explanation only and are not intended to limit the utility model.

[0034] It should be noted that the orientations or positional relationships indicated by various directional terms are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., in the specification and claims of this utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; and, where there is no conflict, the embodiments and features in the embodiments of this utility model can be arbitrarily combined with each other.

[0035] Those skilled in the art will understand that the illustrations provided herein are for illustrative purposes only and are not necessarily drawn to scale. It should be understood that when an element is referred to as "connected" or "coupled" to another element, it can be a direct connection or coupling to the other element, or there may be intermediate elements. Connections can be categorized by type, such as fixed connections, sliding connections, and rotating connections. Unless otherwise specified, connections are generally fixed connections, and fixed connections can be either detachable or non-detachable.

[0036] Most existing data centers use micro-module technology, with in-row air conditioning for cooling. To prevent cooling loss due to short-circuiting of hot and cold airflows, IT cabinets are typically sealed off with cold / hot aisle enclosures and blind flanges are installed. For example... Figure 1 As shown, when there are many IT devices in an IT cabinet, all in-row air conditioners will be turned on to ensure the cooling capacity required by the IT devices. The hot air flows through the air conditioner filter and then through the air conditioner components for cooling. When there are few IT devices in an IT cabinet, it is not necessary to turn on all in-row air conditioners in order to save energy. The closed in-row air conditioners form a hole, and under the action of wind pressure, hot and cold air can freely pass through the closed in-row air conditioners, forming an airflow short circuit and causing a loss of cooling capacity.

[0037] To address the issue of cooling energy waste caused by airflow short-circuiting when some inter-row air conditioners are shut down in micro-module data centers, this invention improves upon existing inter-row air conditioner structures by providing a check valve device that effectively reduces cooling energy loss. Specific embodiments are described in detail below.

[0038] like Figures 2 to 4As shown, this embodiment of the present invention provides a check device for inter-row air conditioning. The check device includes: a frame 11, a blade assembly 12, and a filter screen 13.

[0039] The blade assembly 12 is located on the side of the frame 11 near the hot channel, and the filter screen 13 is located on the side of the frame 11 near the cold channel.

[0040] In this embodiment, in addition to installing the blade assembly, the rear of the frame also has space for installing the filter screen. A long slot can be set in the frame to directly embed the filter screen into the frame, forming an integrated structure with the frame and blade assembly, and placing it in the original position of the filter screen inside the in-row air conditioner. In practical applications, the frame and blade assembly are customized according to the dimensions of the existing in-row air conditioner cabinet, while the filter screen can be directly reused, which can save costs and reduce the production and manufacturing cycle.

[0041] The blade assembly 12 (also known as a louver mechanism) includes a plurality of blades 121 arranged in a vertical direction, with adjacent blades 121 overlapping each other, for opening under the action of wind force from the hot aisle to the cold aisle generated when the inter-row air conditioner is turned on, and closing under the action of wind force from the cold aisle to the hot aisle caused when the inter-row air conditioner is turned off.

[0042] In this embodiment, by installing a check valve on the inter-row air conditioner, when the air conditioner is turned on, the fan draws air from the hot aisle into the air conditioner. The fan opens the blades, allowing the cooled air to enter the cold aisle through the open blades, achieving cooling. When the air conditioner is turned off, the air from the cold aisle flows out towards the hot aisle through the closed air conditioner. The fan closes the blades, preventing air from flowing out of the hot aisle, thus automatically intercepting the flow and preventing heat loss. Furthermore, the check valve accommodates the existing structure of the inter-row air conditioner and can be directly installed in the original filter location, serving both interception and filtration functions, effectively reducing modification costs.

[0043] In one specific implementation, such as Figure 3 and Figure 4 As shown, the frame 11 includes a top frame 111, a bottom frame 112, and two side frames 113. Figures 5 to 7As shown, each blade 121 is divided into an upper part, a middle part, and a lower part, all of which are rectangular sheet structures. The upper and lower parts have the same width, while the width of the middle part is 5 to 8 times the width of the upper / lower parts. The upper part of each blade 121 is bent outward, and the lower part is bent inward, with an obtuse angle. When the blade assembly 12 is closed, the inner surface of the lower part of the upper blade 121 of an adjacent blade is in contact with the outer surface of the upper part of the next blade 121. The upper edge of the uppermost blade 121 in the blade assembly 12 is in contact with the inner surface of the top frame 111, and the outer surface of the lower part of the lower part of the lower blade 121 in the blade assembly 12 is in contact with the upper edge of the bottom frame 112.

[0044] It should be noted that outward bending of the blade refers to bending towards the hot channel, while inward bending refers to bending towards the cold channel. The inner surface of the blade, i.e., the back surface, refers to the surface facing the cold channel; the outer surface of the blade, i.e., the front surface, refers to the surface facing the hot channel.

[0045] In this embodiment, each blade is bent twice to form an upper, middle, and lower section, with the two bends being parallel. When all blades are closed, the lower bend of the previous blade in an adjacent blade is pressed against the upper bend of the next blade to form a seal. The uppermost and lowermost blades are respectively pressed against the top and bottom frames to form a seal. In this way, when each blade is closed, both sides are pressed against the adjacent blades or the frame, forming a completely sealed structure and preventing heat loss.

[0046] In one specific implementation, such as Figure 5 , Figure 8 and Figure 9 As shown, the blade assembly 12 also includes multiple rotating mechanisms. Each blade 121 has a corresponding rotating mechanism on its inner surface. Each rotating mechanism includes two fixing blocks 14 and a rotating shaft 15. The two fixing blocks 14 are located at both ends of the inner surface of the corresponding blade 121. Each fixing block 14 has a first through hole 141. The rotating shaft 15 passes through the first through holes 141 on the two fixing blocks 14 respectively, and the two ends of the rotating shaft 15 are rotatably connected to the two side frames 113 of the frame 11 respectively.

[0047] In this embodiment, by providing a rotating mechanism for each blade 121, the blade 121 can rotate around the rotating shaft 15 on its back side, thereby completing the opening and closing actions.

[0048] Of course, in addition to using a rotating shaft to achieve blade rotation, other forms of rotating mechanisms can also be used to achieve blade rotation.

[0049] In one specific implementation, such as Figure 5 and Figure 8As shown, the fixing block 14 includes a first flat plate portion and a first bent portion. The ends of the first flat plate portion and the first bent portion are connected to form an L-shaped structure, and a first through hole 141 is provided on the first bent portion. The two fixing blocks 14 in each rotating mechanism are symmetrically arranged at both ends of the inner surface of the corresponding blade 121.

[0050] In this embodiment, the bottom of the first flat plate is fixed to the inner surface of the blade, and the first bent portion is fixedly connected to the rotating shaft and rotates together with the rotating shaft when it rotates, thereby driving the blade to rotate. Figure 5 As shown, the shape of the first flat plate can be a rectangular plate, and the shape of the first bent plate can be a triangular plate, with the apex of the triangle being rounded.

[0051] In one specific implementation, such as Figure 5 , Figure 8 and Figure 9 As shown, the blade assembly 12 also includes a transmission mechanism. The transmission mechanism includes multiple transmission blocks 16 and a transmission rod 17. Each blade 121 has a corresponding transmission block 16 on its inner surface, and the transmission rod 17 is rotatably connected to each transmission block 16. Specifically, the transmission block 16 on the inner surface of each blade 121 is located between two fixed blocks 14 on the inner surface of that blade 121, or more precisely, between the two fixed blocks 14.

[0052] In this embodiment, in addition to automatically opening and closing the blades by wind power, a transmission mechanism can be added as a disaster recovery redundancy mechanism to manually control the opening and closing of the blades when the blades cannot open and close automatically in time or when the blades fail to open and close automatically.

[0053] By controlling the movement of the transmission rod 17, the blades 121 can be opened and closed. Specifically, when the transmission rod 17 descends, it drives all the transmission blocks 16 to rotate clockwise, which in turn drives the rotating shaft 15 and the fixing block 14 on the back of each blade 121 to rotate clockwise, thereby gradually opening each blade 121; when the transmission rod 17 rises, it drives all the transmission blocks 16 to rotate counterclockwise, which in turn drives the rotating shaft 15 and the fixing block 14 on the back of each blade 121 to rotate counterclockwise, thereby gradually closing each blade 121.

[0054] In one specific implementation, such as Figure 5 and Figure 7 As shown, the transmission block 16 includes a second flat plate portion, a second bent portion, and a third bent portion. The two ends of the second flat plate portion are respectively connected to the ends of the second bent portion and the third bent portion. A second through hole 161 is provided on the second bent portion, and the rotating shaft 15 passes through the second through hole 161 on the second bent portion.

[0055] like Figure 8 and Figure 10 As shown, a third through hole 162 is provided on the third bend, and the transmission rod 17 is rotatably connected to the third through hole 162 on the third bend of each transmission block 16 by bolts. Of course, in addition to using bolts to achieve the rotatable connection between the transmission block and the transmission rod, other structural forms can also be used to achieve the rotatable connection between the transmission block and the transmission rod.

[0056] In this embodiment, the bottom of the second flat plate is fixed to the inner surface of the blade, the second bent portion is also fixedly connected to the rotating shaft and rotates together with it when the rotating shaft rotates, and the third bent portion is rotatably connected to the transmission rod. Figure 5 , Figure 7 and Figure 10 As shown, the second flat plate can be rectangular, and the second and third bent sections can be triangular with rounded corners. To avoid interference between the rotating shaft and the transmission rod, the third through hole on the third bent section and the second through hole on the second bent section should be staggered vertically. Correspondingly, the third bent section and the second bent section should also be staggered vertically in shape design.

[0057] In one specific embodiment, a fourth through hole (not shown in the figure) is provided on the bottom frame 112 of the frame 11, and the transmission rod 17 extends downward from the fourth through hole on the bottom frame 112, such as... Figure 11 As shown, the part of the transmission rod 17 located outside the bottom frame is hook-shaped, forming a hook 171.

[0058] In this embodiment, the transmission rod 17 can pass through the fourth through hole at the bottom of the frame 11 and be bolted to the transmission block 16 on the back of each blade 121 through the third through hole 162. Each blade 121 cooperates with the transmission rod 17 to achieve opening and closing control. By setting a hook 171 at the bottom of the transmission rod 17, pulling down the hook 171 can control the transmission rod 17 to descend, and the transmission rod 17 drives the transmission block 16 to rotate clockwise around the third through hole 162, and each blade 121 rotates and opens accordingly; pushing up the hook 171 can control the transmission rod 17 to rise, and the transmission rod 17 drives the transmission block 16 to rotate counterclockwise around the third through hole 162, and each blade 121 rotates and closes accordingly.

[0059] The backflow preventer for inter-row air conditioning provided in this embodiment of the invention uses a blade assembly (louver mechanism) installed at the return air inlet. Multiple vertically and horizontally bent blades overlap and seal each other. The blades can automatically open and close under wind force, and can also be manually opened and closed via a transmission mechanism. When the inter-row air conditioning is turned off, pulling down the transmission rod seals the air conditioning cabinet, reducing cooling loss. This effectively solves the problem of cooling waste caused by airflow short-circuiting when some inter-row air conditioning units in a micro-module data center are turned off. Furthermore, the embedded filter within the frame reduces manufacturing and installation costs.

[0060] like Figure 12 As shown, this utility model embodiment also provides an inter-row air conditioner 100, including a cabinet 30, an air conditioning component 20 disposed in the cabinet 30, and a check device 10 for inter-row air conditioning as described in the previous embodiment.

[0061] In one specific embodiment, the air conditioning component 20 includes an evaporator, a fan, and a compressor. Since these devices included in the air conditioning component are common in the art, their structure will not be described in detail here.

[0062] In one specific embodiment, the air conditioning component 20 is disposed inside the cabinet 30 on the side near the cold aisle, and the check device 10 is disposed inside the cabinet 30 on the side near the hot aisle.

[0063] The in-row air conditioner provided in this embodiment of the utility model is a modification of the original in-row air conditioner. The check device is installed at the original location of the filter screen, which can both intercept the flow and filter the air. Moreover, the modification of the in-row air conditioner has the advantages of simple structure, easy manufacturing, low processing difficulty, and easy procurement of materials. It can also utilize the original filter screen of the air conditioner cabinet for customized processing, which effectively reduces costs.

[0064] like Figure 13 As shown, this utility model embodiment also provides a micro-module data center, including multiple communication cabinets 200 and at least one inter-row air conditioner 100 as described in the previous embodiment. The communication cabinets 200 and the inter-row air conditioner 100 are arranged in a row, and the inter-row air conditioner 100 is disposed between two adjacent communication cabinets 200.

[0065] The micro-module data center provided in this embodiment of the utility model adopts an inter-row air conditioner with a backflow prevention device. After the backflow prevention device is installed, the airflow organization in the micro-module data center can be optimized. When the inter-row air conditioner is turned off, the loss of air conditioning cooling capacity can be effectively reduced, the energy consumption of the data center can be reduced, and the operating cost can be saved.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A check device for inter-row air conditioning, characterized in that, include: The frame, blade assembly, and filter screen are provided; the blade assembly is disposed on the side of the frame near the hot aisle, and the filter screen is disposed on the side of the frame near the cold aisle; the blade assembly includes a plurality of blades arranged vertically, with adjacent blades overlapping each other, for opening under the action of wind force from the hot aisle to the cold aisle generated when the inter-row air conditioner is turned on, and for closing under the action of wind force from the cold aisle to the hot aisle caused by the inter-row air conditioner being turned off.

2. The check valve according to claim 1, characterized in that, The frame includes a top frame, a bottom frame, and two side frames; the upper part of each blade bends outward and the lower part bends inward; when the blade assembly is closed, the lower inner surface of the uppermost blade in an adjacent blade is in contact with the upper outer surface of the next blade, the upper edge of the uppermost blade in the blade assembly is in contact with the inner surface of the top frame, and the lower outer surface of the lowermost blade in the blade assembly is in contact with the upper edge of the bottom frame.

3. The check valve according to claim 2, characterized in that, The blade assembly also includes multiple rotating mechanisms; each blade has a corresponding rotating mechanism on its inner surface, and each rotating mechanism includes two fixed blocks and a rotating shaft. The two fixed blocks are located at both ends of the inner surface of the corresponding blade, and each fixed block has a first through hole. The rotating shaft passes through the first through holes on the two fixed blocks respectively, and the two ends of the rotating shaft are rotatably connected to the two side frames of the frame respectively.

4. The check valve according to claim 3, characterized in that, The fixing block includes a first flat plate portion and a first bent portion; the ends of the first flat plate portion and the first bent portion are connected to form an L-shaped structure, and the first bent portion is provided with the first through hole; and / or, the two fixing blocks in each rotation mechanism are symmetrically arranged.

5. The check valve according to claim 3, characterized in that, The blade assembly also includes a transmission mechanism; the transmission mechanism includes multiple transmission blocks and a transmission rod; each blade has a corresponding transmission block on its inner surface, and the transmission rod is rotatably connected to each transmission block.

6. The check valve according to claim 5, characterized in that, The transmission block includes a second flat plate, a second bent portion, and a third bent portion; the two ends of the second flat plate are respectively connected to the ends of the second bent portion and the third bent portion; a second through hole is provided on the second bent portion, and the rotating shaft also passes through the second through hole on the second bent portion; and / or, a third through hole is provided on the third bent portion, and the transmission rod is rotatably connected to the third through hole on the third bent portion of each transmission block by bolts.

7. The check valve according to claim 5, characterized in that, The bottom frame of the frame is provided with a fourth through hole, the transmission rod extends downward from the fourth through hole on the bottom frame, and the part of the transmission rod outside the bottom frame is hook-shaped.

8. An inter-row air conditioner, characterized in that, It includes a cabinet, an air conditioning assembly disposed within the cabinet, and a check device for inter-row air conditioning as claimed in any one of claims 1-7.

9. The inter-row air conditioner according to claim 8, characterized in that, The air conditioning unit is located inside the cabinet on the side near the cold aisle, and the check valve is located inside the cabinet on the side near the hot aisle.

10. A micro-modular data center, characterized in that, It includes multiple communication cabinets and at least one inter-row air conditioner as described in claim 8 or 9, wherein the communication cabinets and the inter-row air conditioner are arranged in a row, and the inter-row air conditioner is disposed between two adjacent communication cabinets.

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