Liquid cooling system and data center

Abstract

The present application provides a liquid cooling system and a data center, which belong to the field of liquid cooling technology. The liquid cooling system includes: a first cold source, a first cold capacity distribution unit, a first capacity expansion distribution unit, at least one first cabinet and at least one second cabinet; the first cold source is connected to the first cold capacity distribution unit, the first cold capacity distribution unit is connected to at least one first cabinet and the first capacity expansion distribution unit, and the first capacity expansion distribution unit is connected to at least one second cabinet. The liquid cooling system of the present application can realize the elastic expansion of the liquid cooling system at a lower transformation cost and a shorter transformation cycle, so that the electricity and refrigeration resources of the liquid cooling system can be fully utilized, thereby improving the energy efficiency level of the liquid cooling system.

Description

Technical Field

[0001] The present application relates to the field of liquid cooling technology, and in particular to a liquid cooling system and a data center. Background Art

[0002] At present, the liquid cooling system architecture of data centers is usually planned according to the highest power consumption requirements to ensure the reliable operation of the data center in the highest energy consumption scenario.

[0003] However, with the development of network data service business, the actual energy consumption power required to be deployed may be lower than the maximum energy consumption. At this time, the power supply and cooling capacity of the liquid cooling system cannot be fully utilized, which will waste data center resources. The structure of the liquid cooling system in the related system is relatively rigid and cannot be flexibly deployed according to the actual energy consumption power. Utility Model Content

[0004] The present application provides a liquid cooling system and a data center, which can solve the problem that the liquid cooling system cannot be flexibly deployed according to actual energy consumption power.

[0005] The technical solution is as follows:

[0006] In one aspect, a liquid cooling system is provided, the liquid cooling system comprising: a first cold source, a first cold capacity distribution unit, a first capacity expansion distribution unit, at least one first cabinet and at least one second cabinet;

[0007] The first cold source is connected to the first cold capacity distribution unit, and the first cold source is used to deliver cold capacity to the first cold capacity distribution unit; the first cold capacity distribution unit is connected to the at least one first cabinet and the first capacity expansion distribution unit, and the first cold capacity distribution unit is used to distribute cold capacity to the at least one first cabinet and the first capacity expansion distribution unit; the first capacity expansion distribution unit is connected to the at least one second cabinet, and the first capacity expansion distribution unit is used to distribute cold capacity to the at least one second cabinet.

[0008] On the other hand, a data center is provided, comprising the liquid cooling system described in the present application.

[0009] The beneficial effects of the technical solution provided by this application include at least:

[0010] The liquid cooling system of the present application utilizes a first cold source to provide cold energy to a first cold energy distribution unit. The first cold energy distribution unit can directly distribute cold energy to the first cabinet, and can transmit the cold energy to the first capacity expansion distribution unit, which then distributes the cold energy to the second cabinet. Thus, by adding the first capacity expansion distribution unit, cold energy can be provided to a second cabinet outside the first cabinet. The liquid cooling system can be elastically expanded at a lower modification cost and in a shorter modification cycle, so that the electricity and refrigeration resources of the liquid cooling system can be fully utilized, thereby improving the energy efficiency level of the liquid cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 is a schematic diagram of the structure of the liquid cooling system provided in an embodiment of the present application;

[0013] Figure 2 is a schematic diagram of the connection of a partial structure of a liquid cooling system provided in an embodiment of the present application;

[0014] Figure 3 It is a structural schematic diagram of a first cooling capacity distribution unit and a first capacity expansion distribution unit provided in an embodiment of the present application;

[0015] Figure 4 It is a structural schematic diagram of a liquid cooling system provided in another embodiment of the present application.

[0016] The reference numerals in the figures represent respectively:

[0017] 1. The first cold source;

[0018] 11. First main liquid supply pipe; 12. First main liquid return pipe;

[0019] 2. The first cooling capacity distribution unit;

[0020] 21. First expansion circulation interface; 211. First expansion main liquid supply interface; 212. First expansion main liquid return interface; 22. First cooling circulation interface; 221. First liquid supply interface; 2211. First liquid supply pipe; 222. First liquid return interface; 2221. First liquid return pipe; 23. Control unit; 24. First control valve; 25. First sensor; 26. Circulation pump; 27. Liquid replenishment pump; 28. Power supply unit;

[0021] 3. The first expansion allocation unit;

[0022] 31. First expansion liquid supply interface; 32. First expansion liquid return interface; 33. Second control valve; 34. Second sensor;

[0023] 4. The first cabinet;

[0024] 41. First coolant inlet; 42. First coolant outlet;

[0025] 5. Second cabinet;

[0026] 51. Second coolant inlet; 52. Second coolant outlet;

[0027] 6. Second cold source;

[0028] 61. Second main liquid supply pipe; 62. Second main liquid return pipe;

[0029] 7. The second cooling capacity distribution unit;

[0030] 71. a second liquid supply pipe; 72. a second liquid return pipe;

[0031] 8. Second expansion allocation unit;

[0032] 81. Second expansion liquid supply interface; 82. Second expansion liquid return interface;

[0033] 9. The first wind wall module;

[0034] 10. Second wind wall module;

[0035] 001, first straight line queue; 0011, first end; 002, second straight line queue; 0021, second end. DETAILED DESCRIPTION

[0036] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1The orientation or positional relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0039] In related technologies, liquid-cooled data center architecture is usually planned according to the needs of high-power liquid-cooled GPU (Graphics Processing Unit) servers, and the power consumption of a single cabinet is estimated to be as high as 70kW. The power consumption of current CPU (Central Processing Unit) server chips is also increasing rapidly, and liquid cooling will be adopted in the future. However, the power consumption of CPU liquid-cooled servers is much lower than that of liquid-cooled GPU servers, and the power consumption of a single cabinet is estimated to be around 30kW. If the currently planned and constructed computer room is used to deploy liquid-cooled CPU servers, a large amount of electricity and cooling resources will be wasted, and the cost per kW of the data center infrastructure will increase sharply.

[0040] Therefore, the present application provides a liquid cooling system that can achieve elastic expansion of the liquid cooling system at a lower modification cost and a shorter modification cycle, so that the electricity and refrigeration resources of the liquid cooling system can be fully utilized, thereby improving the energy efficiency level of the liquid cooling system.

[0041] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0042] On the one hand, combined with Figure 1 As shown, an embodiment of the present application provides a liquid cooling system, which includes: a first cold source 1, a first cold capacity distribution unit 2, a first capacity expansion distribution unit 3, at least one first cabinet 4 and at least one second cabinet 5.

[0043] The first cold source 1 is connected to the first cold capacity distribution unit 2, and the first cold source 1 is used to transport cold capacity to the first cold capacity distribution unit 2; the first cold capacity distribution unit 2 is connected to at least one first cabinet 4 and the first capacity expansion distribution unit 3, and the first cold capacity distribution unit 2 is used to distribute cold capacity to at least one first cabinet 4 and the first capacity expansion distribution unit 3; the first capacity expansion distribution unit 3 is connected to at least one second cabinet 5, and the first capacity expansion distribution unit 3 is used to distribute cold capacity to at least one second cabinet 5.

[0044] The liquid cooling system of this embodiment utilizes the first cold source 1 to provide cold energy for the first cold energy distribution unit 2. The first cold energy distribution unit 2 can directly distribute cold energy to the first cabinet 4, and can transmit the cold energy to the first capacity expansion distribution unit 3, and then the first capacity expansion distribution unit 3 distributes the cold energy to the second cabinet 5. Therefore, by adding the first capacity expansion distribution unit 3, cold energy can be provided to the second cabinet 5 outside the first cabinet 4, and the elastic capacity expansion of the liquid cooling system can be realized at a lower transformation cost and a shorter transformation period, so that the electricity and refrigeration resources of the liquid cooling system can be fully utilized, thereby improving the energy efficiency level of the liquid cooling system.

[0045] In this embodiment, the first expansion distribution unit 3 and the first cooling distribution unit 2 support hot plugging, can realize online elastic expansion, simple structure, easy operation, and lower cost. Compared with the centralized liquid cooling data center, the overall expansion cost is reduced by 60%, and online elastic expansion of the business can be realized. The first cooling distribution unit 2, the first expansion distribution unit 3 and other equipment can be prefabricated in the factory and assembled on site in a standardized manner, which greatly reduces the workload, reduces the elastic expansion cycle by more than 50%, and realizes de-engineering.

[0046] In some possible implementations, reference Figure 1 , the first cold source 1, the first cold distribution unit 2 and the first expansion distribution unit 3 form a primary circulation loop, in which the primary cooling liquid circulates; the first cold source 1 and the first cold distribution unit 2 are connected through the first main liquid supply pipe 11 and the first main liquid return pipe 12. A secondary circulation loop is formed between the first cold distribution unit 2 and at least one first cabinet 4, and between the first expansion distribution unit 3 and at least one second cabinet 5, in which the secondary cooling liquid circulates. The primary cooling liquid and the secondary cooling liquid exchange heat in the first cold distribution unit 2 and the first expansion distribution unit 3 to achieve the transfer of cold. Among them, the first cold distribution unit 2 is connected to each first cabinet 4 through the first liquid supply pipe 2211 and the first liquid return pipe 2221.

[0047] Exemplarily, the primary-side coolant and the secondary-side coolant may have different working fluid requirements due to different working conditions.

[0048] When the liquid cooling system of this embodiment is working, the primary side coolant delivered by the first cold source 1 transfers the cold to the secondary side coolant in the first cold capacity distribution unit 2 and the first expansion distribution unit 3 respectively, and the secondary side coolant enters the first cabinet 4 and the second cabinet 5 respectively, absorbs heat and heats up in the first cabinet 4 and the second cabinet 5, and then flows back to the first cold capacity distribution unit 2 and the first expansion distribution unit 3 respectively, and then exchanges heat with the primary side coolant, and the primary side coolant absorbs heat and heats up, and then flows back to the first cold source 1 to cool down, thereby executing the next round of cyclic cooling.

[0049] It should be noted that the "connection" of two components in the present application not only includes the two components being connected together in contact with each other, but also includes the use of a sealed pipeline to connect two components that are not in contact with each other, so that the fluid in one component can enter the other component along the sealed pipeline.

[0050] In some possible implementations, at least one liquid cooling plate is provided in the first cabinet 4 and the second cabinet 5. The liquid cooling plate can be a metal block made of copper, nickel or aluminum, with a circulating flow channel inside. The circulating flow channel is connected to the first cooling distribution unit 2 and the second cooling distribution unit 7, and the secondary side cooling liquid flows through the circulating flow channel.

[0051] The liquid cooling plate can be in close contact with heat-generating components such as the CPU (Central Processing Unit) and GPU (Graphics Processing Unit) to absorb the heat of the CPU and GPU.

[0052] For example, the number of liquid cooling plates is one, two, three, etc. The number of liquid cooling plates can be reasonably selected according to the number of heat generating components in the cabinet. Each liquid cooling plate contacts different heat generating components to cool them down.

[0053] Combination Figure 2 As shown, in some embodiments, the first cooling capacity distribution unit 2 is provided with a first capacity expansion cycle interface 21 and a first cooling cycle interface 22 .

[0054] The first expansion circulation interface 21 is connected to the first expansion distribution unit 3, and the first expansion circulation interface 21 is used to transport part of the cold energy to the first expansion distribution unit 3, and then distributed to at least one second cabinet 5 by the first expansion distribution unit 3. The first cooling circulation interface 22 is connected to at least one first cabinet 4, and the first cooling circulation interface 22 is used to distribute the cold energy to each first cabinet 4.

[0055] Through the above arrangement, the first cooling distribution unit 2 reserves two interfaces, among which the first cooling cycle interface 22 is a standing interface for distributing cooling to the first cabinet 4, and the first expansion cycle interface 21 is added based on the elastic deployment requirements of the second cabinet 5. When facing the demand for elastic expansion of the second cabinet 5, the first expansion distribution unit 3 can be quickly configured into the liquid cooling system to achieve rapid and elastic deployment of the second cabinet 5.

[0056] In some possible implementations, reference Figure 3 As shown, the first capacity expansion circulation interface 21 is connected to the main circulation loop of the first cooling capacity distribution unit 2 .

[0057] Combination Figure 2As shown, in some embodiments, the first expansion circulation interface 21 includes a first expansion main liquid supply interface 211 and a first expansion main liquid return interface 212, and the first expansion circulation interface 21 is cyclically connected to the first expansion distribution unit 3 through the first expansion main liquid supply interface 211 and the first expansion main liquid return interface 212.

[0058] Through the above arrangement, the first expansion distribution unit 3 uses the first expansion main liquid supply interface 211 and the first expansion main liquid return interface 212 to conveniently and quickly realize the circulation connection with the first cold capacity distribution unit 2. The cooling liquid input by the first cold source 1 can be input into the first expansion distribution unit 3 through the first expansion main liquid supply interface 211. After heat exchange, it flows back to the first cold capacity distribution unit 2 through the first expansion main liquid return interface 212, and then flows back to the first cold source 1 for cooling.

[0059] Combination Figure 2 As shown, in some embodiments, the first cooling circulation interface 22 includes a first liquid supply interface 221 and a first liquid return interface 222; each first cabinet 4 includes a first cooling liquid inlet 41 and a first cooling liquid outlet 42, the first cooling liquid inlet 41 is connected to the first liquid supply interface 221, and the first cooling liquid outlet 42 is connected to the first liquid return interface 222.

[0060] The first expansion distribution unit 3 is provided with a first expansion liquid supply interface 31 and a first expansion liquid return interface 32; each second cabinet 5 includes a second cooling liquid inlet 51 and a second cooling liquid outlet 52, the second cooling liquid inlet 51 is connected to the first expansion liquid supply interface 31, and the second cooling liquid outlet 52 is connected to the first expansion liquid return interface 32.

[0061] Through the above arrangement, the first cooling capacity distribution unit 2 can also utilize the first liquid supply interface 221 and the first liquid return interface 222 to circulate cooling liquid to all the first cabinets 4 while supplying cooling capacity to the first expansion distribution unit 3. The first expansion distribution unit 3 utilizes the first expansion liquid supply interface 31 and the first expansion liquid return interface 32 to circulate cooling liquid to all the second cabinets 5, thereby realizing the circulation refrigeration of each of the first cabinet 4 and the second cabinet 5.

[0062] Combination Figure 3 As shown, in some embodiments, the first cooling capacity distribution unit 2 includes a control unit 23 , a first control valve 24 and a first sensor 25 ; the first expansion distribution unit 3 includes a second control valve 33 and a second sensor 34 .

[0063] The first expansion circulation interface 21 and the first cooling circulation interface 22 are both provided with a first control valve 24 and a first sensor 25; at least one of the first expansion liquid supply interface 31 and the first expansion liquid return interface 32 is provided with a second control valve 33 and a second sensor 34; the control unit 23 is electrically connected to the first control valve 24, the first sensor 25, the second control valve 33 and the second sensor 34, respectively, and the control unit 23 is used to control the first control valve 24 according to the feedback information of the first sensor 25, and control the second control valve 33 according to the feedback information of the second sensor 34.

[0064] In this embodiment, the control unit 23 in the first cooling distribution unit 2 realizes cooling delivery control of the first expansion distribution unit 3 and all the first cabinets 4 by controlling all the first control valves 24. The first expansion distribution unit 3 receives cooling liquid from the first cooling distribution unit 2, and the cooling delivery of the first expansion distribution unit 3 to each second cabinet 5 is also controlled by the control unit 23 through the second control valve 33 and the second sensor 34, so that the control unit 23 can accurately realize cooling delivery control of each first cabinet 4 and each second cabinet 5.

[0065] Exemplarily, a power connection structure and a communication connection structure are provided between the first capacity expansion distribution unit 3 and the first cooling capacity distribution unit 2 .

[0066] Combination Figure 3 As shown, in some embodiments, the first cooling capacity distribution unit 2 further includes a circulation pump 26 and a liquid replenishment pump 27; the circulation pump 26 is connected to at least one of the first capacity expansion circulation interface 21 and the first cooling circulation interface 22, and is used to drive the coolant to flow; the circulation pump 26 is connected to at least one of the first capacity expansion circulation interface 21 and the first cooling circulation interface 22, and is used to replenish the coolant in the circulation loop. Exemplarily, the circulation pump 26 and the liquid replenishment pump 27 are electrically connected to the control unit 23, respectively.

[0067] In some possible implementations, reference Figure 3 As shown, the first cooling distribution unit 2 is also provided with a power supply unit 28, which can supply power to electrical components in the first cooling distribution unit 2 and the first expansion distribution unit 3, such as control valves, sensors, circulation pumps 26, and liquid replenishment pumps 27.

[0068] Combination Figure 4As shown, in some embodiments, the liquid cooling system also includes a second cold source 6, a second cold capacity distribution unit 7 and a second expansion distribution unit 8; the second cold source 6 is connected to the second cold capacity distribution unit 7, and the second cold source 6 is used to transport cold capacity to the second cold capacity distribution unit 7; the second cold capacity distribution unit 7 is connected to at least one first cabinet 4 and the second expansion distribution unit 8, and the second cold capacity distribution unit 7 is used to distribute cold capacity to at least one first cabinet 4 and the second expansion distribution unit 8; the second expansion distribution unit 8 is connected to at least one second cabinet 5, and the second expansion distribution unit 8 is used to distribute cold capacity to at least one second cabinet 5; and, the first cold capacity distribution unit 2 and the second cold capacity distribution unit 7 are arranged in parallel at at least one first cabinet 4, and the first expansion distribution unit 3 and the second expansion distribution unit 8 are arranged in parallel at at least one second cabinet 5.

[0069] Exemplarily, the second cold source 6 is the same as the first cold source 1 , the second cold capacity distribution unit 7 is the same as the first cold source 1 distribution unit, and the second capacity expansion distribution unit 8 is the same as the first capacity expansion distribution unit 3 .

[0070] In another exemplary embodiment, the second cold source 6 is connected to the second cold capacity distribution unit 7 through the second main liquid supply pipe 61 and the second main liquid return pipe 62. The second cold capacity distribution unit 7 is connected to each first cabinet 4 through the second liquid supply pipe 71 and the second liquid return pipe 72, and forms a system backup with the first cold capacity distribution unit 2. The second expansion distribution unit 8 is provided with a second expansion liquid supply interface 81 and a second expansion liquid return interface 82; the second cooling liquid inlet 51 of each second cabinet 5 is connected to the second expansion liquid supply interface 81, and the second cooling liquid outlet 52 is connected to the second expansion liquid return interface 82, and the second expansion distribution unit 8 and the first expansion distribution unit 3 form a system backup.

[0071] In the liquid cooling system of this embodiment, the cold source, the cold distribution unit, the expansion distribution unit and the first cabinet 4 and the second cabinet 5 are directly connected. The cold energy provided by the cold source is transmitted to the first cabinet 4 and the second cabinet 5 through the cold distribution unit and the expansion distribution unit. There is no need for a ring network connection. The cold distribution unit and the expansion distribution unit can match one or several cabinets. The structure is simple, the construction period is short, and the cost is low. It can be applied to small-scale and sporadic liquid cooling scenarios. The first cabinet 4 and the second cabinet 5 are both cooled in parallel through two sets of cold distribution systems, and have backup working capabilities. On the one hand, it can be realized in a variety of different working modes to meet different cold demand. On the other hand, it can ensure the normal cooling of the first cabinet 4 and the second cabinet 5 cabinets in the event of a failure.

[0072] In some possible implementations, the liquid cooling system includes a first operating mode, a second operating mode, and a third operating mode.

[0073] In the first working mode, the first cold source 1, the first cold capacity distribution unit 2 and the first capacity expansion distribution unit 3 are working, and the second cold source 6, the second cold capacity distribution unit 7 and the second capacity expansion distribution unit 8 are not working; in the second working mode, the second cold source 6, the second cold capacity distribution unit 7 and the second capacity expansion distribution unit 8 are working, and the first cold source 1, the first cold capacity distribution unit 2 and the first capacity expansion distribution unit 3 are not working; in the third working mode, the first cold source 1, the first cold capacity distribution unit 2 and the first capacity expansion distribution, the second cold source 6, the second cold capacity distribution unit 7 and the second capacity expansion distribution unit 8 work simultaneously.

[0074] In some embodiments, reference Figure 1 As shown, the first expansion distribution unit 3, the second expansion distribution unit 8 and the second cabinet 5 are prefabricated modules, which are produced and assembled in the factory and shipped, transported and installed as a whole. Only a small amount of electricity and cooling pipelines need to be connected on site to complete the elastic expansion of the system, further reducing the expansion and construction period of the system.

[0075] Combination Figure 4 As shown, in some embodiments, the liquid cooling system further includes a first wind wall module 9 and a second wind wall module 10 , the first wind wall module 9 is connected to the first cold source 1 , and the second wind wall module 10 is connected to the second cold source 6 .

[0076] Through the above arrangement, the first cold source 1 of this embodiment can supply cooling to the first wind wall module 9, and the second cold source 6 can supply cooling to the second wind wall module 10, so that the liquid cooling system of this embodiment has air cooling capability, realizing an air-liquid mixed cooling mode.

[0077] Exemplarily, the first wind wall module 9 and the second wind wall module 10 are both stacked or installed in rows by multiple fan modules, making the best use of the space, which makes the airflow distribution better and ensures a more uniform airflow through the air cooling terminal, thereby improving the heat transfer performance. After a fan fails, the remaining fans will compensate for the air volume, so the redundancy function improves the operational reliability of the entire system.

[0078] Combination Figure 4 As shown, in some embodiments, the number of the first cabinet 4 and the second cabinet 5 are both multiple. The multiple first cabinets 4, the first cooling distribution unit 2 and the second cooling distribution unit 7 are arranged along the first linear array 001, and the first cooling distribution unit 2 and the second cooling distribution unit 7 are sequentially arranged at the first end 0011 of the first linear array 001.

[0079] Multiple second cabinets 5, first capacity expansion distribution units 3 and second capacity expansion distribution units 8 are arranged along the second linear queue 002, and the first capacity expansion distribution units 3 and the second capacity expansion distribution units 8 are sequentially arranged at the second end 0021 of the second linear queue 002; the first linear queue 001 and the second linear queue 002 are spaced in parallel, and the first end 0011 and the second end 0021 are aligned.

[0080] Through the above arrangement, the arrangement of the cooling liquid pipeline between the first cooling distribution unit 2, the second cooling distribution unit 7 and the first cabinet 4 is less difficult, and the cabinet can be flexibly deployed at the other end of the first linear queue 001 according to business needs without adjusting the cooling distribution unit; the arrangement of the cooling liquid pipeline between the first expansion distribution unit 3, the second expansion distribution unit 8 and the second cabinet 5 is less difficult, and the cabinet can be flexibly deployed at the other end of the second linear queue 002 according to business needs without adjusting the expansion distribution unit.

[0081] On the other hand, this embodiment provides a data center, which uses the liquid cooling system of this application. The data center of this embodiment uses the cooling system of this application and has all the beneficial technical effects of all the embodiments herein.

[0082] In some possible implementations, the number of cooling systems used in a data center can be one or more. When multiple cooling systems are used, the liquid cooling plates in the data center are in the form of a ring network, and multiple cooling systems are connected to the liquid cooling ring network in parallel. A water-cooled wind wall is used at the wind side end, and the cooling system and wind wall are in a one-to-many form. Each cooling system corresponds to a certain number of wind walls, which reduces the granularity of wind side faults and improves the reliability of the system.

[0083] In some other possible implementations, the data center further includes at least one server.

[0084] The server can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms. The terminal can be a smart phone, tablet computer, laptop computer, desktop computer, smart speaker, smart watch, etc., but is not limited to this. The terminal and the server can be directly or indirectly connected via wired or wireless communication, which is not limited in this disclosure.

[0085] It should be pointed out that the "several" and "at least one" mentioned in this article refer to one or more, and "multiple" and "at least two" refer to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0086] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0087] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid cooling system, characterized in that: The liquid cooling system comprises: a first cold source (1), a first cold capacity distribution unit (2), a first capacity expansion distribution unit (3), at least one first cabinet (4) and at least one second cabinet (5); The first cold source (1) is connected to the first cold capacity distribution unit (2), and the first cold source (1) is used to deliver cold capacity to the first cold capacity distribution unit (2); the first cold capacity distribution unit (2) is connected to the at least one first cabinet (4) and the first capacity expansion distribution unit (3), and the first cold capacity distribution unit (2) is used to distribute cold capacity to the at least one first cabinet (4) and the first capacity expansion distribution unit (3); the first capacity expansion distribution unit (3) is connected to the at least one second cabinet (5), and the first capacity expansion distribution unit (3) is used to distribute cold capacity to the at least one second cabinet (5).

2. The liquid cooling system according to claim 1, characterized in that: The first cooling capacity distribution unit (2) is provided with a first capacity expansion circulation interface (21) and a first cooling circulation interface (22); The first capacity expansion circulation interface (21) is connected to the first capacity expansion distribution unit (3), and the first capacity expansion circulation interface (21) is used to transmit part of the cold energy to the first capacity expansion distribution unit (3), and then the first capacity expansion distribution unit (3) distributes it to the at least one second cabinet (5), and the first cooling circulation interface (22) is connected to the at least one first cabinet (4), and the first cooling circulation interface (22) is used to distribute and transmit the cold energy to each of the first cabinets (4).

3. The liquid cooling system according to claim 2, characterized in that: The first capacity expansion circulation interface (21) comprises a first capacity expansion main liquid supply interface (211) and a first capacity expansion main liquid return interface (212), and the first capacity expansion circulation interface (21) is cyclically connected to the first capacity expansion distribution unit (3) via the first capacity expansion main liquid supply interface (211) and the first capacity expansion main liquid return interface (212).

4. The liquid cooling system according to claim 2, characterized in that: The first cooling circulation interface (22) comprises a first liquid supply interface (221) and a first liquid return interface (222); Each of the first cabinets (4) comprises a first cooling liquid inlet (41) and a first cooling liquid outlet (42), wherein the first cooling liquid inlet (41) is connected to the first liquid supply interface (221), and the first cooling liquid outlet (42) is connected to the first liquid return interface (222); The first expansion distribution unit (3) is provided with a first expansion liquid supply interface (31) and a first expansion liquid return interface (32); Each of the second cabinets (5) comprises a second cooling liquid inlet (51) and a second cooling liquid outlet (52), wherein the second cooling liquid inlet (51) is connected to the first expansion liquid supply interface (31), and the second cooling liquid outlet (52) is connected to the first expansion liquid return interface (32).

5. The liquid cooling system according to claim 4, characterized in that: The first cooling capacity distribution unit (2) comprises a control unit (23), a first control valve (24) and a first sensor (25); the first expansion distribution unit (3) comprises a second control valve (33) and a second sensor (34); The first expansion circulation interface (21) and the first cooling circulation interface (22) are both provided with the first control valve (24) and the first sensor (25); at least one of the first expansion liquid supply interface (31) and the first expansion liquid return interface (32) is provided with the second control valve (33) and the second sensor (34); The control unit (23) is electrically connected to the first control valve (24), the first sensor (25), the second control valve (33) and the second sensor (34), respectively. The control unit (23) is used to control the first control valve (24) according to feedback information from the first sensor (25), and to control the second control valve (33) according to feedback information from the second sensor (34).

6. The liquid cooling system according to claim 5, characterized in that: The first cooling capacity distribution unit (2) further comprises a circulation pump (26) and a liquid replenishment pump (27); The circulation pump (26) is connected to at least one of the first capacity expansion circulation interface (21) and the first cooling circulation interface (22) to drive the flow of coolant; the circulation pump (26) is connected to at least one of the first capacity expansion circulation interface (21) and the first cooling circulation interface (22) to replenish coolant into the circulation loop.

7. The liquid cooling system according to any one of claims 1 to 6, characterized in that: The liquid cooling system further comprises a second cold source (6), a second cold capacity distribution unit (7) and a second capacity expansion distribution unit (8); The second cold source (6) is connected to the second cold capacity distribution unit (7), and the second cold source (6) is used to transmit cold capacity to the second cold capacity distribution unit (7); the second cold capacity distribution unit (7) is connected to the at least one first cabinet (4) and the second capacity expansion distribution unit (8), and the second cold capacity distribution unit (7) is used to distribute cold capacity to the at least one first cabinet (4) and the second capacity expansion distribution unit (8); the second capacity expansion distribution unit (8) is connected to the at least one second cabinet (5), and the second capacity expansion distribution unit (8) is used to distribute cold capacity to the at least one second cabinet (5); Furthermore, the first cooling capacity distribution unit (2) and the second cooling capacity distribution unit (7) are arranged in parallel at the at least one first cabinet (4), and the first capacity expansion distribution unit (3) and the second capacity expansion distribution unit (8) are arranged in parallel at the at least one second cabinet (5).

8. The liquid cooling system according to claim 7, characterized in that: The liquid cooling system further comprises a first wind wall module (9) and a second wind wall module (10), wherein the first wind wall module (9) is connected to the first cold source (1), and the second wind wall module (10) is connected to the second cold source (6).

9. The liquid cooling system according to claim 7, characterized in that: The number of the first cabinet (4) and the number of the second cabinet (5) are both multiple; A plurality of the first cabinets (4), the first cooling distribution units (2) and the second cooling distribution units (7) are arranged along a first linear array (001), and the first cooling distribution units (2) and the second cooling distribution units (7) are sequentially arranged at a first end (0011) of the first linear array (001); A plurality of the second cabinets (5), the first capacity expansion distribution units (3) and the second capacity expansion distribution units (8) are arranged along a second linear queue (002), and the first capacity expansion distribution units (3) and the second capacity expansion distribution units (8) are sequentially arranged at a second end (0021) of the second linear queue (002); The first linear array (001) and the second linear array (002) are spaced in parallel, and the first end (0011) and the second end (0021) are aligned.

10. A data center, characterized in that: A liquid cooling system comprising the liquid cooling system according to any one of claims 1 to 9.

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