Liquid-cooled cabinet

Abstract

The utility model discloses a liquid-cooled cabinet, and relates to the technical field of liquid cooling, the liquid-cooled cabinet comprises a containing cavity used for containing cooling liquid and at least one electronic information device and a liquid distribution assembly used for conveying the cooling liquid to the containing cavity, the liquid distribution assembly comprises a plurality of liquid distribution pipes arranged in the first direction, the liquid distribution pipes are arranged in the containing cavity, and the liquid distribution pipes are arranged in the first direction. A plurality of liquid distribution holes which are arranged at intervals and are communicated with the containing cavity are formed in the liquid distribution pipe in the second direction, and the first direction intersects with the second direction; the liquid distribution pipe is provided with a liquid inlet, the liquid distribution holes are communicated with the liquid inlet, and the hole diameters of the liquid distribution holes are sequentially increased in the direction away from the liquid inlet. The liquid distributor has the advantages of uniform liquid distribution and high heat exchange efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling, in particular to a liquid cooling cabinet. Background Art

[0002] With the rapid development of cloud computing, the requirements for computing performance are getting higher and higher. While the performance of servers has been improved, power consumption has shown a rapid upward trend, and the power consumption of cabinets has increased exponentially. Data shows that the power density of data center cabinets has increased 15 times in the past decade. In the past, the power consumption of a rack was generally 1.5-2kW, but now it has reached 20-30kW in some places. Existing servers and data centers use air-conditioning cooling, which uses air conditioning to send cold air into the cabinets loaded with servers to cool the electronic devices. However, with the steady increase in power density, the cooling capacity of air-conditioning cooling is also approaching its limit and cannot meet the cooling needs. Therefore, it is necessary to provide a new cooling method to cool electronic devices, so liquid cooling technology has emerged. The advantage of liquid cooling technology is that its heat transfer medium has higher specific heat capacity and thermal conductivity, which can better solve the thermal management of battery systems than air cooling. The working method of liquid cooling is to immerse the heat exchange equipment such as servers that need to be cooled in insulating coolant, and use the circulation of coolant to achieve heat dissipation.

[0003] In the related art, in the immersion liquid cooling cabinet, the insulating coolant is mostly distributed by directly injecting the coolant from one side of the cabinet or opening several holes, which causes uneven distribution of the coolant in the cabinet, thereby reducing the heat exchange efficiency, causing some servers or heat exchangers to be unable to be adequately cooled, thereby affecting the stability and reliability of the entire system. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model provides a liquid cooling cabinet, which has the advantages of uniform liquid distribution and high heat exchange efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A liquid-cooled cabinet comprises a cavity for containing cooling liquid and at least one electronic information device and a liquid distribution assembly for conveying cooling liquid to the cavity, wherein the liquid distribution assembly comprises a plurality of liquid distribution pipes arranged along a first direction, the liquid distribution pipes are arranged in the cavity, the liquid distribution pipes are provided with a plurality of liquid distribution holes arranged at intervals and connected to the cavity along a second direction, and the first direction and the second direction intersect; the liquid distribution pipe has a liquid inlet, the liquid distribution holes are connected to the liquid inlet, and the apertures of the plurality of liquid distribution holes increase successively in a direction away from the liquid inlet.

[0007] In the present application, the liquid distribution assembly includes a plurality of liquid distribution pipes arranged along a first direction, and the liquid distribution pipes are provided with a plurality of spaced liquid distribution holes along a second direction, and the first direction intersects with the second direction so that the coolant can evenly and widely cover every corner of the cavity. In the direction away from the liquid inlet of the liquid distribution pipe, the liquid distribution holes on the same liquid distribution pipe are enlarged successively. The water pressure is relatively high near the liquid inlet, so setting liquid distribution holes with small apertures can control the flow of the coolant and avoid excessive local flow. As the water flows along the liquid distribution pipe away from the liquid inlet, the water pressure gradually decreases. At this time, by gradually increasing the aperture, it is possible to ensure that the flow of the coolant in each liquid distribution hole is roughly the same, achieving uniform liquid distribution, so that the electronic information equipment in various parts of the cavity can be fully cooled, avoiding local overheating, achieving efficient heat exchange, and ultimately improving the overall heat dissipation performance of the server.

[0008] Optionally, the liquid distribution holes on the same liquid distribution pipe are equidistantly distributed.

[0009] Optionally, a plurality of the liquid distribution holes are opened at one end of the liquid distribution tube facing the electronic information device.

[0010] Optionally, the liquid distribution hole is configured as a circular hole.

[0011] Optionally, the housing cavity includes a bottom wall, and the liquid distribution pipe is arranged on the bottom wall.

[0012] Optionally, the liquid-cooling cabinet includes two liquid distribution pipes, and the two liquid distribution pipes are arranged at opposite ends of the cavity along the first direction.

[0013] Optionally, the liquid distribution assembly includes a liquid distribution box connected to the liquid distribution pipe, and the liquid distribution box is connected to an external liquid source to supply liquid to the liquid distribution pipe.

[0014] Optionally, the liquid distribution box is provided with a liquid supply port, a flange is fixedly connected to the liquid supply port, and the external liquid source is connected to the liquid distribution box via the flange.

[0015] Optionally, a plurality of partitions are provided in the cavity to divide the cavity into a plurality of liquid cooling areas, and the plurality of partitions are arranged along an extension direction of the liquid distribution pipe.

[0016] Optionally, a clearance groove matching the diameter of the liquid distribution pipe is opened at the bottom of the partition, and the liquid distribution pipe passes through the clearance groove.

[0017] These features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. The best implementation or means of the utility model will be fully presented in conjunction with the drawings, but it is not a limitation of the technical solution of the utility model. In addition, these features, elements and components appearing in each of the following texts and drawings are multiple, and are marked with different symbols or numbers for convenience, but all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Among them, 1. the container cavity; 11. the partition; 2. the liquid distribution component; 21. the liquid distribution pipe; 211. the liquid distribution hole; 212. the liquid inlet; 22. the liquid distribution box; 221. the liquid supply port; 222. the flange. DETAILED DESCRIPTION

[0021] The following is a detailed description of embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.

[0022] References in this specification to "one embodiment" or "an example" or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment of the present patent disclosure. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0023] Example:

[0024] like Figure 1 As shown, this embodiment provides a liquid-cooled cabinet, including a cavity 1 for accommodating cooling liquid and at least one electronic information device and a liquid distribution assembly 2 for conveying cooling liquid to the cavity 1, the liquid distribution assembly 2 includes a plurality of liquid distribution pipes 21 arranged along a first direction, the liquid distribution pipes 21 are arranged in the cavity 1, the liquid distribution pipes 21 are provided with a plurality of liquid distribution holes 211 arranged at intervals and connected to the cavity 1 along a second direction, and the first direction and the second direction intersect; the liquid distribution pipe 21 has a liquid inlet 212, the liquid distribution holes 211 are connected to the liquid inlet 212, and the apertures of the plurality of liquid distribution holes 211 increase successively in a direction away from the liquid inlet 212.

[0025] In this embodiment, the liquid-cooled cabinet includes a cavity 1 for containing a coolant and an electronic information device. The electronic information device is immersed in the coolant and heat is dissipated by heat exchange with the coolant. In this embodiment, the electronic information device is a server. In other embodiments, the electronic information device may also be other electronic information devices such as storage devices. The liquid-cooled cabinet also includes a liquid distribution component 2 for conveying coolant to the cavity 1. The external low-temperature coolant enters the cabinet through the liquid distribution component 2. The low-temperature coolant is converted into high-temperature coolant after heat exchange with the server, and finally discharged from the cabinet to achieve heat dissipation of the server. The liquid distribution assembly 2 includes a plurality of liquid distribution pipes 21 arranged along a first direction, and the liquid distribution pipes 21 are provided with a plurality of liquid distribution holes 211 arranged at intervals along a second direction. The first direction intersects with the second direction. In this embodiment, the cavity 1 is a rectangular parallelepiped structure, the first direction refers to the width direction of the cabinet, and the second direction refers to the length direction of the cabinet, that is, the plurality of liquid distribution pipes 21 are arranged along the width direction of the cabinet, and the liquid distribution holes 211 are arranged along the length direction of the cabinet so that the cooling liquid can evenly and widely cover every corner of the cavity 1, ensuring that all electronic information equipment can be fully cooled. The liquid distribution pipe 21 has a liquid inlet 212 connected to the liquid distribution hole 211, and the cooling liquid entering the liquid distribution pipe 21 from the liquid inlet 212 is sprayed from the liquid distribution hole 211 to all parts of the cavity 1. In the direction away from the liquid inlet 212, the liquid distribution holes 211 on the same liquid distribution pipe 21 are enlarged successively. The water pressure is relatively high near the liquid inlet 212, so a small-diameter liquid distribution hole 211 can be set to control the flow of the coolant and avoid excessive local flow. As the water flows along the liquid distribution pipe 21 away from the liquid inlet 212, the water pressure gradually decreases. At this time, by gradually increasing the aperture, the flow of the coolant in each liquid distribution hole 211 can be ensured to be roughly the same, achieving uniform liquid distribution, so that the electronic information equipment in each part of the cavity 1 can be fully cooled, avoiding local overheating, achieving efficient heat exchange, and ultimately improving the overall heat dissipation performance of the server.

[0026] The liquid distribution holes 211 on the same liquid distribution pipe 21 are distributed at equal intervals.

[0027] In this embodiment, the equidistantly distributed liquid distribution holes 211 can ensure that the coolant is evenly sprayed on the liquid distribution tube 21, and the coolant can more effectively cover the entire cavity 1 and contact more equipment surfaces, thereby accelerating the transfer and dissipation of heat, achieving uniform cooling of the electronic information equipment in the cavity 1, avoiding local overheating or insufficient cooling, protecting the equipment from overheating damage, and extending its service life, ensuring that the equipment can operate stably even under high load.

[0028] In other embodiments, the distances between the liquid distribution holes 211 may also be unequal. Taking into account the pressure loss and flow distribution of the coolant during the flow process, the coolant flow and pressure at the far end are maintained by accurately balancing the aperture size, the number of liquid distribution holes 211, and the distances between the liquid distribution holes 211, as long as the cooling effect at multiple locations in the entire cavity 1 is consistent.

[0029] The liquid distribution hole 211 is formed at one end of the liquid distribution pipe 21 facing the electronic information device.

[0030] In this embodiment, the liquid distribution hole 211 is opened at one end of the liquid distribution pipe 21 facing the electronic information equipment, which can ensure that the coolant is directly sprayed to the key heat dissipation area of ​​the equipment to achieve precise cooling. This design is conducive to improving cooling efficiency and reducing energy loss. The coolant is directly sprayed onto the surface of the equipment, which can quickly absorb and take away the heat generated by the equipment, effectively reduce the operating temperature of the equipment, and improve the operating stability and life of the equipment.

[0031] The liquid distribution hole 211 is configured as a circular hole.

[0032] In the present embodiment, the liquid distribution holes 211 are all constructed as round holes. The round hole shape can ensure that the coolant forms relatively uniform droplets when sprayed, which is beneficial to the uniform distribution of the coolant and full contact with the surface of the electronic information equipment. In addition, compared with holes of other complex shapes, round holes are simpler and more convenient to process, and the cost is also lower. This helps to reduce production costs and improve production efficiency. The round holes are not easily blocked by impurities or particulate matter, which is beneficial to maintaining the fluidity of the coolant and can ensure the stable operation of the cooling system in the cabinet. Of course, in other embodiments, the liquid distribution holes 211 can also be constructed as square holes, diamond holes, or other shapes of through holes, and liquid distribution holes 211 of other shapes should also be covered within the scope of protection of this application.

[0033] The chamber 1 comprises a bottom wall, and the liquid distribution pipe 21 is arranged on the bottom wall.

[0034] In this embodiment, arranging the liquid distribution pipe 21 on the bottom wall can save space and make the structure of the cavity 1 more compact. This is particularly important for data centers or computer rooms with limited space. The liquid distribution pipe 21 is directly located at the bottom of the cavity 1, which can more easily achieve uniform distribution of the coolant, reduce the temperature gradient in the cavity 1, and improve the overall cooling effect. The liquid distribution hole 211 of the liquid distribution pipe 21 sprays the low-temperature coolant to the bottom of the electronic information equipment to increase the temperature of the coolant after heat exchange. The density of the high-temperature coolant is less than that of the low-temperature coolant. Therefore, the coolant after heat exchange will automatically float to the upper part of the cabinet, and then be discharged from the cabinet through the return tank and other structures arranged on the upper part of the cabinet.

[0035] The liquid cooling cabinet includes two liquid distribution pipes 21 , which are arranged at opposite ends of the cavity 1 along a first direction.

[0036] In the present embodiment, two liquid distribution pipes 21 are provided in the cavity 1, and the two liquid distribution pipes 21 are arranged at opposite ends of the cavity 1 along the width direction of the cabinet, which can increase the distribution range of the coolant and improve the cooling efficiency and uniformity. The two liquid distribution pipes 21 can spray coolant to the electronic information equipment in the cavity 1 at the same time, thereby accelerating the absorption and transfer of heat. This parallel cooling method is conducive to reducing the operating temperature of the equipment and improving the operating stability and life of the equipment. In other embodiments, the number of liquid distribution pipes 21 can also be adjusted according to the size of the cavity 1 and the arrangement of the electronic information equipment, so that all electronic information equipment is located in the liquid distribution range.

[0037] The liquid distributing assembly 2 further includes a liquid distributing box 22 connected to the liquid distributing pipe 21 , and the liquid distributing box 22 is connected to an external liquid source to supply liquid to the liquid distributing pipe 21 .

[0038] In this embodiment, the liquid distribution box 22 is a processing unit before the coolant enters the liquid distribution pipe 21, and its main function is to ensure the uniform distribution of the coolant. Devices such as flow guides can be set in the box, so when the coolant enters the liquid distribution box 22 from an external liquid source, a relatively stable flow state can be formed in the liquid distribution box 22, and it can be evenly diverted to the subsequent liquid distribution pipe 21, so as to avoid the situation where the local concentration of the coolant is too high or too low when entering the liquid distribution pipe 21, and prepare for the subsequent uniform liquid distribution. The liquid distribution box 22 also has a certain liquid storage capacity, which can cope with the situation when the external liquid source is insufficient or interrupted to a certain extent. When the external liquid source is temporarily unable to provide coolant, the coolant in the liquid distribution box 22 can continue to provide supply to the cooling system for a period of time to ensure the continuous operation of the system. In addition, the liquid storage function also helps to cope with sudden changes in the coolant flow when the system starts or stops, reducing the impact on the stability of the system.

[0039] The liquid distribution box 22 is provided with a liquid supply port 221 , a flange 222 is fixedly connected to the liquid supply port 221 , and an external liquid source is connected to the liquid distribution box 22 via the flange 222 .

[0040] In the present embodiment, the liquid supply port 221 of the liquid distribution box 22 is connected to the external liquid source through the flange 222. Specifically, in the present embodiment, the external liquid source is a cooling distribution unit (CDU). In other embodiments, the external liquid source may also be a liquid storage tank. The flange 222 connection has the advantages of simple structure, convenient disassembly and assembly, and reliable sealing. It is suitable for cooling systems of various sizes and complexities, and can ensure the stability and safety of the coolant during transmission. The sealing surfaces between the flanges 222 are precisely machined and surface treated, and with the action of fasteners, it can be ensured that the coolant will not leak during transmission. Since fasteners such as bolts are used for connection, the connection point has high mechanical strength and can withstand large coolant pressure and vibration. When the liquid distribution box 22 needs to be maintained or replaced, the flange 222 connection can be easily removed without disassembling the entire cooling system.

[0041] The flange 222 connection allows a certain degree of axial and angular displacement, which is helpful in accommodating slight deformation and installation errors of the pipeline system.

[0042] A plurality of partitions 11 are arranged in the chamber 1 to divide the chamber 1 into a plurality of liquid cooling areas. The plurality of partitions 11 are arranged along the extension direction of the liquid distribution pipe 21 .

[0043] In this embodiment, a partition 11 is provided in the cavity 1 of the cabinet, and the partition 11 can divide the entire space into a plurality of relatively independent cooling areas, reduce the thermal interference between different areas, and improve the overall efficiency of the cooling system. Each area can be optimized for a specific device or heat load to achieve more precise temperature control and more efficient cooling. Specifically, in this embodiment, three partitions 11 are provided to divide the cavity 1 into four areas. In other embodiments, the number of partitions 11 can also be set to 4, 5, etc. according to the volume of the cavity 1.

[0044] A clearance groove matching the diameter of the liquid distribution pipe 21 is provided at the bottom of the partition plate 11, and the liquid distribution pipe 21 passes through the clearance groove.

[0045] In this embodiment, the clearance groove can provide a channel so that the liquid distribution pipe 21 can pass through the partition 11 without obstruction. Therefore, the liquid distribution pipe 21 can pass under the partition 11 to evenly spray or distribute the coolant to each cooling area. The size of the clearance groove should be precisely matched with the diameter of the liquid distribution pipe 21 to ensure that the liquid distribution pipe 21 can pass through tightly and smoothly.

[0046] In addition, after the coolant exchanges heat with a heat source such as a server, its temperature will rise and needs to be effectively discharged from the chamber 1 for recooling. If the hot oil after heat exchange flows from the upper part of the partition 11 to the oil return tank, the hot coolant will naturally rise and flow to the upper part of the partition 11 due to its low density. Therefore, the oil return tank should be located near the upper part of the partition 11, and its opening should be large enough to receive the hot coolant.

[0047] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.

Claims

1. A liquid-cooled cabinet, comprising a cavity (1) for containing a cooling liquid and at least one electronic information device and a liquid distribution assembly (2) for conveying the cooling liquid to the cavity (1), characterized in that: The liquid distributing assembly (2) comprises a plurality of liquid distributing tubes (21) arranged along a first direction, the liquid distributing tubes (21) being arranged in the containing cavity (1), the liquid distributing tube (21) being provided with a plurality of liquid distributing holes (211) arranged at intervals and connected to the containing cavity (1) along a second direction, the first direction and the second direction intersecting; the liquid distributing tube (21) having a liquid inlet (212), the liquid distributing holes (211) being connected to the liquid inlet (212), and the apertures of the plurality of liquid distributing holes (211) increasing successively in a direction away from the liquid inlet (212).

2. The liquid-cooled cabinet according to claim 1, characterized in that: The liquid distribution holes (211) on the same liquid distribution pipe (21) are distributed at equal intervals.

3. The liquid-cooled cabinet according to claim 1, characterized in that: The liquid distribution hole (211) is opened at one end of the liquid distribution pipe (21) facing the electronic information device.

4. The liquid-cooled cabinet according to claim 1, characterized in that: The liquid distribution hole (211) is configured as a circular hole.

5. The liquid-cooled cabinet according to claim 1, characterized in that: The containing cavity (1) comprises a bottom wall, and the liquid distribution pipe (21) is arranged on the bottom wall.

6. The liquid-cooled cabinet according to any one of claims 1 to 5, characterized in that: The liquid cooling cabinet comprises two liquid distribution pipes (21), and the two liquid distribution pipes (21) are arranged at two opposite ends of the cavity (1) along the first direction.

7. The liquid-cooled cabinet according to any one of claims 1 to 5, characterized in that: The liquid distributing assembly (2) comprises a liquid distributing box (22) connected to the liquid distributing pipe (21), and the liquid distributing box (22) is connected to an external liquid source to supply liquid to the liquid distributing pipe (21).

8. The liquid-cooled cabinet according to claim 7, characterized in that: The liquid distribution box (22) is provided with a liquid supply port (221), a flange (222) is fixedly connected to the liquid supply port (221), and the external liquid source is connected to the liquid distribution box (22) via the flange (222).

9. The liquid-cooled cabinet according to any one of claims 1 to 5, characterized in that: A plurality of partitions (11) are arranged in the chamber (1) to divide the chamber (1) into a plurality of liquid cooling areas, and the plurality of partitions (11) are arranged along the extension direction of the liquid distribution pipe (21).

10. The liquid-cooled cabinet according to claim 9, characterized in that: A clearance groove matching the diameter of the liquid distribution pipe (21) is provided at the bottom of the partition plate (11), and the liquid distribution pipe (21) passes through the clearance groove.

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