Closed cold channel of machine room
By introducing a double-layer frame, thermal separation grid, and temperature control moving device into the enclosed cold aisle of the computer room, the problem of low cooling efficiency in the existing technology is solved, enabling rapid response to sudden heat loads and efficient heat dissipation, and improving the flexibility and safety of the cooling system.
Patent Information
- Application Number
- CN202610406906.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-31
- Publication Date
- 2026-05-12
AI Technical Summary
Existing enclosed cold aisle communication equipment rooms struggle to achieve rapid and directional heat dissipation under sudden heat loads. The mixing of hot and cold airflows leads to reduced cooling efficiency, making it impossible to address overheating issues in individual cabinets in a timely manner.
Design a closed cold aisle for computer rooms, adopting a double-layer frame structure, combined with heat separation grids, subcooling pipes and temperature control moving devices, to achieve precise directional cooling through temperature sensors and drive wheel chain system, and to improve local heat dissipation capacity by using dual-purpose heating and cooling pipes and refrigerant devices.
It enables rapid response to sudden heat loads, improves the heat dissipation efficiency inside the cabinet, prevents electrical components from short-circuiting due to overheating, improves the utilization rate of cooling air and reduces energy consumption.
Smart Images

Figure CN122028378A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of computer room access technology, specifically to a closed cold aisle for computer rooms. Background Technology
[0002] Currently, most communication equipment rooms adopt a closed cold aisle design to improve the utilization efficiency of cooling capacity and optimize the overall energy efficiency of the cooling system. This design achieves effective cooling of the equipment room environment by physically isolating and alternating hot and cold airflows. In existing closed cold aisle communication equipment rooms, the cold air output from the precision air conditioning system is first sent into the static pressure space under the raised floor, and then diffuses evenly into each closed cold aisle through natural convection. However, when individual cabinets in the equipment room experience localized overheating due to sudden load increases or equipment malfunctions, this evenly distributed cooling mode is insufficient for rapid and targeted heat dissipation of abnormally overheated cabinets. Simultaneously, the mixing of hot and cold airflows in localized areas leads to decreased cooling efficiency, significantly limiting the immediate cooling effect. Therefore, to address these shortcomings, enhance the emergency cooling capacity of the equipment room under sudden heat load conditions, and create a faster and more precise cooling environment, we designed and introduced a closed cold aisle design for equipment rooms. Summary of the Invention
[0003] The purpose of this invention is to provide a closed cold aisle for computer rooms to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a closed cold aisle for a computer room, comprising a frame, the bottom of which has a double-layer design, multiple side doors movably connected to both sides of the outer side of the frame, partition covers fixedly connected to both sides of the top of the frame, multiple electrical cabinets equidistantly fixedly installed on both sides of the inner side of the frame, a heat separation compartment fixedly installed on the top of each electrical cabinet, the heat separation compartment and the partition cover being fixed together, one end of the heat separation compartment extending outside the partition cover, a chain drivingly connected to one side of the electrical cabinet, multiple drive wheels rotatably connected to one side of the electrical cabinet from high to low, the drive wheels and the chain engaging for transmission, a supercooling pipe rotatably connected to one side of the top of the electrical cabinet, a first gear fixedly connected to one end of the supercooling pipe, the first gear rotating after engaging with the drive wheels and the chain, one end of the supercooling pipe being connected to a refrigerant channel, and temperature sensors fixedly installed at equal intervals on the other side of the electrical cabinet, the temperature sensors being fixedly equipped with a temperature control moving device that enables each drive wheel and chain to engage, thereby causing the supercooling pipe to swing precisely.
[0005] Preferably, the number of teeth on the outside of the plurality of drive wheels increases sequentially from high to low, and the drive wheels and temperature sensors are installed at the same height on the electrical cabinet, with limit strips fixedly installed on the electrical cabinet near each drive wheel.
[0006] Preferably, a pair of cold air supply pipes are fixedly installed inside the frame. One end of each cold air supply pipe is fixedly connected to a secondary pipe, and multiple branch pipes are connected to the secondary pipe. Multiple air outlet pipes are fixedly connected to each branch pipe. Each air outlet pipe is arranged on one side of the electrical cabinet, and the top of each cold air supply pipe is fixedly connected to a refrigerant device.
[0007] Preferably, a foot pedal is movably connected between the two electrical cabinets, and multiple pressure sensors are fixedly installed at the bottom of each foot pedal. A second spring is fixedly connected between each pressure sensor and the frame, and the pressure sensors are electrically connected to the refrigerant device.
[0008] Preferably, a cylinder is fixedly installed at the bottom of the frame near the bottom of the electrical cabinet. A second rack is fixedly connected to one end of each cylinder. A dual-purpose heating and cooling pipe is rotatably connected inside the frame near the electrical cabinet. A third gear is fixedly connected to the bottom of the dual-purpose heating and cooling pipe, and the third gear meshes with the second rack. The top of the dual-purpose heating and cooling pipe is rotatably connected to the heat dissipation compartment, and the bottom of the dual-purpose heating and cooling pipe is connected to a cold air supply pipe via a conduit.
[0009] Preferably, the temperature control moving device includes a rotating rod fixedly connected to one side of the drive wheel, the rotating rod being rotatably connected to the electrical cabinet, a plurality of limiting grooves being provided at the bottom of the rotating rod, a storage tube being fixedly installed on one side of the temperature sensor, a first spring being fixedly connected to one side of the storage tube, an internal grooved ring being rotatably connected to the rotating rod, the storage tube being fixedly connected to the internal grooved ring, a locking rod being rotatably connected to the inside of the electrical cabinet near the rotating rod, a limiting block being fixedly installed on the locking rod, a second gear being fixedly connected to one end of the locking rod, a limiting rod being fixedly installed on the other side of the inside of the electrical cabinet, a slider being slidably connected to the limiting rod, and a first rack being fixedly connected to one side of the slider.
[0010] Preferably, a variable resistance head is fixedly connected to the other side of the slider, a pair of magnets are fixedly installed on the storage tube, a magnetic diaphragm is slidably connected inside the storage tube, the variable resistance head and the storage tube abut against each other, and after the variable resistance head slides on the limiting rod, the first rack and the second gear form a meshing state.
[0011] Preferably, a fixing rod is fixedly installed between the temperature sensor and the limiting rod, and a sliding rheostat is fixedly connected to the fixing rod. The rheostat head and the sliding rheostat are slidably connected together, and the sliding rheostat is electrically connected to the refrigerant device connected to the subcooling pipe.
[0012] Preferably, one end of each magnet is pointed and the other end is square, and the storage tube is filled with mercury.
[0013] Preferably, the top of the frame is equipped with multiple liftable skylights, and a sliding door is provided on one side of the frame. Both the sliding door and the liftable skylights are controlled by the main control system.
[0014] Compared with the prior art, the beneficial effects of the present invention are: After heat is generated inside the electrical cabinet, the hot air inside the cabinet is directly discharged to the outside through the heat separation compartment. The heat separation compartment is equipped with a one-way valve, so that the hot air can only go out and not enter. When the hot air generated inside the electrical cabinet cannot be discharged in time, it will also generate a certain amount of heat in the electrical cabinet itself. It is necessary to block the hot passage of the electrical cabinet and the cold passage inside the computer room. After the hot and cold air are blocked, if the temperature inside the electrical cabinet is high, the temperature control moving device will sense it immediately. At the same time, the temperature control moving device can be engaged by the drive wheel and chain to make the subcooling pipe rotate, so that the exhaust port of the subcooling pipe is aimed at the area where the high temperature is generated, and the specific location is cooled down, thereby improving the cooling capacity of the electrical cabinet itself and preventing the possibility of fire caused by short circuit of the electrical components inside the electrical cabinet. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the present invention; Figure 3 This is a schematic diagram of the overall internal structure of the present invention from another perspective; Figure 4 This is a schematic diagram of the temperature control moving device and electrical cabinet structure of the present invention; Figure 5 This is a schematic diagram of the temperature control moving device of the present invention from another perspective. Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a top view of the frame structure of the present invention; Figure 8 This is a schematic diagram of the cold air supply pipe structure of the present invention; Figure 9 For the present invention Figure 7 Enlarged structural diagram at point B; Figure 10 This is a schematic diagram of the material storage tube structure of the present invention.
[0016] In the diagram: 1-Frame; 101-Step pedal; 102-Pressure sensor; 2-Side door; 3-Sliding door; 4-Heating sunroof; 5-Separation cover; 6-Electrical cabinet; 7-Heating and cooling dual-purpose pipe; 8-Cold air supply pipe; 801-Secondary pipe; 9-Exhaust pipe; 10-Heat separation compartment; 11-Chain; 12-Subcooling pipe; 13-First gear; 14-Drive wheel; 15-Limiting bar; 16-Rotating rod; 17-Storage pipe; 1701-Magnetic diaphragm; 18-Fixing rod; 19-Sliding rheostat; 20-Limiting rod; 21-Slider; 2101-Rheostat head; 22-Temperature sensor; 23-Built-in groove ring; 24-First spring; 25-Magnet; 26-Locking rod; 27-Second gear; 28-First rack; 29-Cylinder; 30-Second rack; 31-Third gear; 32-Second spring. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] Please see the appendix Figure 1-10This invention provides a specific technical solution: a closed cold aisle for a computer room, comprising a frame 1, the bottom of which has a double-layer design; multiple side doors 2 are movably connected to both sides of the exterior of the frame 1; partition covers 5 are fixedly connected to both sides of the top of the frame 1; multiple electrical cabinets 6 are equidistantly fixedly installed on both sides of the interior of the frame 1; each electrical cabinet 6 has a heat separation compartment 10 fixedly installed on its top, the heat separation compartment 10 and the partition cover 5 are fixed together, one end of the heat separation compartment 10 extends outside the partition cover 5; a chain 11 is driven to one side of the electrical cabinet 6; multiple drive wheels 14 are rotatably connected to one side of the electrical cabinet 6 from high to low, the drive wheels 14 and the chain 11 meshing and driving; a supercooling pipe 12 is rotatably connected to one side of the top of the electrical cabinet 6; a first gear 13 is fixedly connected to one end of the supercooling pipe 12, the first gear 13 rotates after meshing with the drive wheels 14 and the chain 11; one end of the supercooling pipe 12 is connected to a refrigerant channel; and temperature sensors 22 are equidistantly fixedly installed on the other side of the electrical cabinet 6. A temperature-controlled moving device is fixedly installed on sensor 22, which enables each drive wheel 14 and chain 11 to mesh, thereby causing the subcooling pipe 12 to swing precisely. The side door 2 is initially in a close fit with the frame 1. When heat is generated inside the electrical cabinet 6, the hot air inside the electrical cabinet 6 will be directly discharged to the outside through the heat separation compartment 10. The heat separation compartment 10 is equipped with a one-way valve, so that the hot air can only go out and not enter. When the hot air generated inside the electrical cabinet 6 cannot be discharged in time, it will also generate a certain amount of heat in the electrical cabinet 6 itself. It is necessary to block the hot passage of the electrical cabinet 6 and the cold passage inside the computer room. After the hot and cold air are blocked, if the temperature inside the electrical cabinet 6 is high, the temperature-controlled moving device will sense it immediately. At the same time, the temperature-controlled moving device itself can mesh with the drive wheel 14 and chain 11 to make the subcooling pipe 12 rotate, so that the exhaust port of the subcooling pipe 12 is aimed at the area where the high temperature is generated, and cools the specific location, improves the cooling capacity of the electrical cabinet 6 itself, and prevents the possibility of fire caused by short circuit of the electrical components inside the electrical cabinet 6. The specifics are detailed below: The number of teeth on the exterior of the multiple drive wheels 14 increases sequentially from high to low, and the drive wheels 14 and the temperature sensor 22 are installed at the same height on the electrical cabinet 6. The electrical cabinet 6 is fixedly installed with a limit strip 15 near each drive wheel 14. The limit strip 15 prevents the drive wheel 14 from rotating excessively, thereby effectively limiting the extreme angle of the subcooling tube 12. The limit strip 15 has the most obvious limiting effect on the drive wheel 14 at the lowest point. The number of teeth on the drive wheel 14 determines the transmission time when the drive wheel 14 meshes with the chain 11. The fewer the number of teeth on the exterior of the drive wheel 14, the smaller the distance the chain 11 moves, and vice versa.
[0019] Furthermore, a pair of cold air supply pipes 8 are fixedly installed inside the frame 1. One end of each cold air supply pipe 8 is fixedly connected to a secondary pipe 801, and multiple branch pipes are connected to the secondary pipe 801. Each branch pipe is fixedly connected to multiple air outlet pipes 9, and each air outlet pipe 9 is arranged on one side of the electrical cabinet 6. The top of each cold air supply pipe 8 is fixedly connected to a refrigerant device. The refrigerant device can be installed outside the frame 1, and its specific location will not be described in detail. The refrigerant device is an existing device and will not be described in detail. When the computer room is operating normally, the system automatically turns on the refrigerant device to allow cold air to enter the cold air supply pipes 8. The cold air supply pipes 8 then supply cold air through the secondary pipes 801 and the air outlet pipes 9 to one side of the electrical cabinet 6, cooling the side of the electrical cabinet 6. This allows the surface of the electrical cabinet 6 to be cooled while simultaneously cooling the inside of the computer room, separating hot and cold air, improving the utilization rate of cold air, and reducing some of the problems of excessive energy consumption.
[0020] Furthermore, a foot pedal 101 is movably connected between the two electrical cabinets 6. Multiple pressure sensors 102 are fixedly installed at the bottom of each foot pedal 101. A second spring 32 is fixedly connected between each pressure sensor 102 and the frame 1. The pressure sensors 102 are electrically connected to the refrigerant device. When personnel need to operate or maintain the electrical cabinet 6, they can step on the foot pedal 101 next to the electrical cabinet 6. After the personnel step on the foot pedal 101, the pressure sensor 102 will sense the pressure and send a signal to the back office, which will then cut off the refrigerant supply to the cold air supply pipe 8. This allows personnel to directly inspect or operate the electrical cabinet 6, improving personnel comfort.
[0021] Furthermore, cylinders 29 are fixedly installed at the bottom of the frame 1 near the bottom of the electrical cabinet 6. A second rack 30 is fixedly connected to one end of each cylinder 29. A hot and cold dual-purpose pipe 7 is rotatably connected inside the frame 1 near the electrical cabinet 6. A third gear 31 is fixedly connected to the bottom of the hot and cold dual-purpose pipe 7, and the third gear 31 meshes with the second rack 30. The top of the hot and cold dual-purpose pipe 7 is rotatably connected to the heat separation compartment 10. A valve can be installed between the top of the hot and cold dual-purpose pipe 7 and the heat separation compartment 10. The bottom of the hot and cold dual-purpose pipe 7 is connected to a cold air supply pipe 8 via a pipe. When personnel are repairing the electrical cabinet 6 and standing nearby, if it is necessary to quickly neutralize the surrounding air... When the air temperature is controlled, the refrigerant device can be adjusted in the background to input cold air into the dual-purpose heating and cooling pipe 7, so that cold air is input into the bottom of the dual-purpose heating and cooling pipe 7. At the same time, the valve between the top of the dual-purpose heating and cooling pipe 7 and the heat separation compartment 10 is opened, so that the hot air inside the electrical cabinet 6 and the cold air inside the dual-purpose heating and cooling pipe 7 come into contact, thereby regulating the temperature inside the dual-purpose heating and cooling pipe 7, and then releasing it to the outside, so that personnel can come into contact with air that is not too cold or too hot. After the personnel leave the electrical cabinet 6, the refrigerant device resumes the supply of air to the cold air supply pipe 8 to cool the machine room. At the same time, the refrigerant device cuts off the supply of cold air to the dual-purpose heating and cooling pipe 7 to enhance the functionality of the device.
[0022] Furthermore, the temperature control moving device includes a rotating rod 16 fixedly connected to one side of the drive wheel 14. The rotating rod 16 is rotatably connected to the electrical cabinet 6. Multiple limiting grooves are provided at the bottom of the rotating rod 16. A storage tube 17 is fixedly installed on one side of the temperature sensor 22. A first spring 24 is fixedly connected to one side of the storage tube 17. An internal grooved ring 23 is connected to the rotating rod 16. The storage tube 17 and the internal grooved ring 23 are fixedly connected. A locking rod 26 is rotatably connected to the inside of the electrical cabinet 6 near the rotating rod 16. A limiting block is fixedly installed on the locking rod 26. A second gear 27 is fixedly connected to one end of the locking rod 26. A limiting rod 20 is fixedly installed on the other side of the electrical cabinet 6. A slider 21 is slidably connected to the limiting rod 20. A first rack 28 is fixedly connected to one side of the slider 21. When a certain area of the electrical cabinet 6 generates high temperature, the temperature sensor 22 of the corresponding area generates an alarm. Simultaneously, the slider 21 slides on the limiting rod 20, causing the first rack 28 to drive the second gear 27 to rotate. After the second gear 27 rotates, the limiting block disengages from the limiting groove, and the first spring 24 returns from its initial stretched state to its normal state. Therefore, during the reset process, the first spring 24 causes the rotating rod 16 to drive the drive wheel 14 and the chain 11 to mesh. At the same time, the rotating rod 16 rotates on the built-in groove ring 23 (the built-in groove ring 23 has a groove inside that matches the rotating rod 16, not shown). This causes the rotating rod 16 to drive the drive wheel 14 to generate a driving force that moves the chain 11. When the chain 11 moves, the supercooling tube 12 rotates. The more teeth the drive wheel 14 has, the greater the rotation amplitude of the supercooling tube 12. Therefore, when the bottom drive wheel 14 rotates, the rotation angle of the supercooling tube 12 approaches 90°, thus effectively cooling each layer of electrical components in a timely manner.
[0023] Furthermore, a variable resistance head 2101 is fixedly connected to the other side of the slider 21, and a pair of magnets 25 are fixedly installed on the storage tube 17. A magnetic diaphragm 1701 is slidably connected inside the storage tube 17. The variable resistance head 2101 and the storage tube 17 abut against each other. After the variable resistance head 2101 slides on the limiting rod 20, the first rack 28 and the second gear 27 form a meshing state. One end of each magnet 25 is pointed, and the other end is square. The storage tube 17 is filled with mercury. When a certain layer of the electrical cabinet 6 generates a high temperature, the temperature rises, causing the liquid mercury inside the storage tube 17 to expand, as shown in the attached figure. Figure 6 and 10As shown, when the liquid mercury expands, it causes the magnetic diaphragm 1701 to move inside the storage tube 17, which in turn causes the variable resistance head 2101 to move synchronously outside the storage tube 17. This allows the variable resistance head 2101 to move the slider 21 on the limiting rod 20, enabling the first rack 28 to move together. The magnets 25 are two of the same type, which can balance the variable resistance head 2101 to prevent it from shifting during movement. This improves the stability of the variable resistance head 2101's sliding motion and prevents it from shifting when moving on the storage tube 17.
[0024] Furthermore, a fixing rod 18 is fixedly installed between the temperature sensor 22 and the limiting rod 20. A sliding rheostat 19 is fixedly connected to the fixing rod 18. The rheostat head 2101 and the sliding rheostat 19 are slidably connected together. The sliding rheostat 19 is electrically connected to the refrigerant device connected to the subcooling pipe 12. When the rheostat head 2101 moves, it also moves on the sliding rheostat 19, causing the resistance of the sliding rheostat 19 to decrease. This increases the power supplied to the subcooling pipe 12 from the background, thereby increasing the cooling effect of the subcooling pipe 12. As a result, the subcooling pipe 12 can suppress any potential fire inside the electrical cabinet 6, ensuring the operation of the electrical cabinet 6.
[0025] Furthermore, multiple liftable skylights 4 are installed on the top of the frame 1, and a sliding door 3 is provided on one side of the frame 1. Both the sliding door 3 and the liftable skylights 4 are controlled by the main control system. The liftable skylights 4 can ventilate the computer room in a short time.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A closed cold aisle for a computer room, comprising a frame (1), wherein the bottom of the frame (1) is a double-layer design, characterized in that: Multiple side doors (2) are movably connected to both sides of the frame (1). A partition cover (5) is fixedly connected to both sides of the top of the frame (1). Multiple electrical cabinets (6) are fixedly installed at equal intervals on both sides of the interior of the frame (1). A heat separation compartment (10) is fixedly installed on the top of each electrical cabinet (6). The heat separation compartment (10) and the partition cover (5) are fixed together. One end of the heat separation compartment (10) extends outside the partition cover (5). A chain (11) is connected to one side of the electrical cabinet (6). Multiple drive wheels (14) are rotatably connected to one side of the electrical cabinet (6) from high to low. The electrical cabinet (6) is connected to a supercooled pipe (12) on one side of the top. A first gear (13) is fixedly connected to one end of the supercooled pipe (12). The first gear (13) rotates after meshing with the chain (11) through the drive wheel (14). One end of the supercooled pipe (12) is connected to the refrigerant channel. Temperature sensors (22) are fixedly installed at equal intervals on the other side of the electrical cabinet (6). A temperature control moving device is fixedly installed on the temperature sensor (22) so that each drive wheel (14) and chain (11) meshes, thereby making the supercooled pipe (12) swing precisely.
2. The enclosed cold aisle for a computer room according to claim 1, characterized in that: The number of teeth on the outside of the multiple drive wheels (14) increases sequentially from high to low, and the drive wheels (14) and the temperature sensor (22) are installed at the same height on the electrical cabinet (6). The electrical cabinet (6) has a limit strip (15) fixedly installed next to each drive wheel (14).
3. The enclosed cold aisle for a computer room according to claim 2, characterized in that: A pair of cold air supply pipes (8) are fixedly installed inside the frame (1). One end of the cold air supply pipe (8) is fixedly connected to a secondary pipe (801). Multiple branch pipes are connected to the secondary pipe (801). Multiple air outlet pipes (9) are fixedly connected to each branch pipe. Each air outlet pipe (9) is arranged on one side of the electrical cabinet (6). The top of each cold air supply pipe (8) is fixedly connected to the refrigerant device.
4. The enclosed cold aisle for a computer room according to claim 3, characterized in that: A foot pedal (101) is movably connected between the two electrical cabinets (6). Multiple pressure sensors (102) are fixedly installed at the bottom of each foot pedal (101). A second spring (32) is fixedly connected between each pressure sensor (102) and the frame (1). The pressure sensor (102) is electrically connected to the refrigerant device.
5. A closed cold aisle for a computer room according to claim 4, characterized in that: A cylinder (29) is fixedly installed at the bottom of the frame (1) near the bottom of the electrical cabinet (6). A second rack (30) is fixedly connected to one end of the cylinder (29). A hot and cold dual-purpose pipe (7) is rotatably connected inside the frame (1) near the electrical cabinet (6). A third gear (31) is fixedly connected to the bottom of the hot and cold dual-purpose pipe (7). The third gear (31) meshes with the second rack (30). The top of the hot and cold dual-purpose pipe (7) is rotatably connected to the heat separation grid (10). The bottom of the hot and cold dual-purpose pipe (7) is connected to the cold air supply pipe (8) through a pipe.
6. The enclosed cold aisle for a computer room according to claim 1, characterized in that: The temperature control moving device includes a rotating rod (16) fixedly connected to one side of the drive wheel (14). The rotating rod (16) is rotatably connected to the electrical cabinet (6). The bottom of the rotating rod (16) is provided with multiple limiting grooves. A storage tube (17) is fixedly installed on one side of the temperature sensor (22). A first spring (24) is fixedly connected on one side of the storage tube (17). An internal groove ring (23) is rotatably connected to the rotating rod (16). The storage tube (17) and the internal groove ring (23) are fixedly connected. A locking rod (26) is rotatably connected to the inside of the electrical cabinet (6) near the rotating rod (16). A limiting block is fixedly installed on the locking rod (26). A second gear (27) is fixedly connected to one end of the locking rod (26). A limiting rod (20) is fixedly installed on the other side of the inside of the electrical cabinet (6). A slider (21) is slidably connected to the limiting rod (20). A first rack (28) is fixedly connected to one side of the slider (21).
7. A closed cold aisle for a computer room according to claim 6, characterized in that: A variable resistance head (2101) is fixedly connected to the other side of the slider (21). A pair of magnets (25) are fixedly installed on the storage tube (17). A magnetic diaphragm (1701) is slidably connected inside the storage tube (17). The variable resistance head (2101) and the storage tube (17) abut against each other. After the variable resistance head (2101) slides on the limiting rod (20), the first rack (28) and the second gear (27) form a meshing state.
8. A closed cold aisle for a computer room according to claim 7, characterized in that: A fixing rod (18) is fixedly installed between the temperature sensor (22) and the limiting rod (20). A sliding rheostat (19) is fixedly connected to the fixing rod (18). The rheostat head (2101) and the sliding rheostat (19) are slidably connected together. The sliding rheostat (19) is electrically connected to the refrigerant device connected to the subcooling pipe (12).
9. A closed cold aisle for a computer room according to claim 7, characterized in that: Each of the magnets (25) has a pointed end and a square end, and the storage tube (17) is filled with mercury.
10. A closed cold aisle for a computer room according to claim 1, characterized in that: The top of the frame (1) is equipped with multiple liftable skylights (4), and a sliding door (3) is provided on one side of the frame (1). Both the sliding door (3) and the liftable skylights (4) are controlled by the main unit system.