Liquid separation device and liquid cooling system

Abstract

The invention provides a liquid separation device and a liquid cooling system. The liquid separation device comprises a first terminal module, a second terminal module and at least one liquid separation module. And each liquid separation module is provided with a liquid separation through hole. Every two adjacent liquid separation modules are detachably connected and matched in a sealed mode, so that all the liquid separation through holes are sequentially communicated and form a liquid separation flow channel. The first terminal module and the second terminal module are installed at the two ends of the liquid separation flow channel in a sealed mode correspondingly. The liquid separation modules, the first terminal module and the second terminal module are all of modular structures and can be machined and produced in advance, so that a user can select different numbers of liquid separation modules according to actual requirements, then the liquid separation modules are assembled with the first terminal module and the second terminal module, one-time mold opening manufacturing is not needed, and the production efficiency is improved. A complicated liquid separation structure does not need to be customized for each heating device, the cost is saved, the installation is flexible, the liquid separation device can adapt to servers of different manufacturers or cabinets with different layouts, and the adaptability and expansibility of the liquid separation device and the liquid cooling system are improved.

Description

Technical Field

[0001] This invention relates to the field of server heat dissipation technology, and in particular to a liquid distribution device and a liquid cooling system. Background Technology

[0002] In recent years, with the rapid development of artificial intelligence, high-performance computing (HPC), big data analytics, and other businesses, the computing density of data centers has been continuously increasing, and the power consumption of a single rack has increased from the traditional 5kW~10kW to 30kW or even higher. Traditional air cooling methods can no longer meet the heat dissipation requirements of high power density servers, while liquid cooling technology, especially direct-to-chip liquid cooling (DLC) technology, is gradually becoming the mainstream solution due to its high heat transfer efficiency and low energy consumption.

[0003] In direct liquid cooling systems, the vertical distribution unit plays a crucial role, responsible for distributing coolant from the main supply line to multiple cooling plates and collecting the return liquid back into the main return line. However, existing vertical distribution units are difficult to adapt to servers from different manufacturers or rack layouts, resulting in poor installation adaptability and high maintenance costs. Summary of the Invention

[0004] Therefore, it is necessary to provide a liquid separation device and a liquid cooling system to address the above problems.

[0005] The technical solution is as follows:

[0006] On the one hand, a liquid separation device is provided, comprising:

[0007] The liquid separation module has at least one quantity, and each liquid separation module is provided with a liquid separation through hole and a liquid separation interface communicating with the liquid separation through hole. Two adjacent liquid separation modules can be detachably connected and sealed together so that each liquid separation through hole is connected in sequence to form a liquid separation channel.

[0008] The first terminal module is sealed and installed at one end of the liquid distribution channel, and is provided with a main interface communicating with the liquid distribution channel;

[0009] The second terminal module is sealed and installed at the other end of the liquid distribution channel and is used to close the liquid distribution channel.

[0010] The technical solution will be further explained below:

[0011] In one embodiment, the liquid dispensing device further includes a locking component, which is configured to fix the first terminal module, the second terminal module, and each of the liquid dispensing modules into a single unit when each of the liquid dispensing through holes is sequentially connected to form the liquid dispensing channel, and the first terminal module and the second terminal module are respectively installed at both ends of the liquid dispensing channel.

[0012] In one embodiment, each of the liquid dispensing modules is provided with a first mounting through hole spaced apart from the liquid dispensing through hole, the first terminal module is provided with a second mounting through hole corresponding to the first mounting through hole, and the second terminal module is provided with a third mounting through hole corresponding to the first mounting through hole. The locking component includes a fastener, which is configured to pass through the third mounting through hole, each of the first mounting through holes, and the second mounting through hole in sequence when the liquid dispensing through holes are connected in sequence to form the liquid dispensing channel, and the first terminal module and the second terminal module are respectively installed at both ends of the liquid dispensing channel, thereby fixing the first terminal module, the second terminal module, and each of the liquid dispensing modules into one unit.

[0013] In one embodiment, the number of first mounting through holes in the liquid distribution module is at least two, and each of the first mounting through holes is evenly arranged around the axis of the liquid distribution through hole. The number of second mounting through holes, the number of third mounting through holes, and the number of fasteners are all the same as the number of first mounting through holes in the liquid distribution module. Each of the second mounting through holes, each of the third mounting through holes, and each of the fasteners are set in a one-to-one correspondence with each of the first mounting through holes in the liquid distribution module.

[0014] In one embodiment, the two ends of the liquid dispensing through hole extend to the two ends of the liquid dispensing module, the liquid dispensing interface is disposed on the side wall of the liquid dispensing through hole, and the two ends of the liquid dispensing module are respectively provided with a first positioning part and a second positioning part. One of the first terminal module and the second terminal module is provided with the first positioning part, and the other is provided with the second positioning part. The first positioning part is used to position and cooperate with the second positioning part.

[0015] In one embodiment, the first positioning part is configured as a positioning groove, and the second positioning part is configured as a positioning post. The outer contour shape of the positioning post is adapted to the inner contour shape of the positioning groove. One end of the liquid dispensing through hole in the liquid dispensing module is connected to the positioning groove, and the other end of the liquid dispensing through hole extends to the end face of the positioning post.

[0016] In one embodiment, the liquid dispensing device further includes a seal installed on the inner wall of the positioning groove and configured to seal the outer wall of the positioning post and the inner wall of the positioning groove when the positioning post is inserted into the positioning groove.

[0017] In one embodiment, the inner wall of the positioning groove is provided with an annular mounting groove, and the seal is installed in the annular mounting groove.

[0018] In one embodiment, the first terminal module and / or the second terminal module are provided with a drain port, which is connected to the liquid distribution channel and is used to drain and vent the liquid distribution channel. The liquid distribution device also includes a valve, which is installed at the drain port and is used to control the drain port to open or close.

[0019] On the other hand, a liquid cooling system is provided, including at least one cold plate and the liquid distribution device, wherein each cold plate is connected to each of the liquid distribution interfaces.

[0020] In the above embodiments, the liquid dispensing device and liquid cooling system are modular in structure, consisting of a dispensing module, a first terminal module, and a second terminal module. These modules can be pre-fabricated in the factory, allowing users to select different numbers of dispensing modules based on actual site requirements. The dispensing modules are then assembled with the first and second terminal modules to form a suitable dispensing device. This eliminates the need for one-time mold manufacturing and customized complex dispensing structures for each heat-generating device, saving costs. Installation is flexible, and the device can be adapted to servers from different manufacturers or rack layouts, improving the adaptability and scalability of the dispensing device and liquid cooling system. Furthermore, when a dispensing branch or valve malfunctions, only the corresponding module needs to be replaced, reducing maintenance costs, shortening maintenance cycles, and enhancing the practicality of the dispensing device and liquid cooling system. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a liquid separation device according to one embodiment.

[0024] Figure 2 for Figure 1 A schematic diagram of the liquid separation module in the process.

[0025] Figure 3 for Figure 2 A schematic diagram of the liquid separation module from another perspective.

[0026] Figure 4 for Figure 1 A schematic diagram of the structure of the first terminal module in the diagram.

[0027] Figure 5 for Figure 1 The diagram shows the structure of the second terminal module.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Liquid dispensing device; 100. Liquid dispensing module; 110. Liquid dispensing through hole; 120. Liquid dispensing interface; 130. First mounting through hole; 200. First terminal module; 210. Main interface; 220. Second mounting through hole; 300. Second terminal module; 310. Third mounting through hole; 400. Locking assembly; 410. Fastener; 510. First positioning part; 511. Positioning groove; 512. Annular mounting groove; 520. Second positioning part; 521. Positioning post; 530. Seal. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] The inventors conducted research and analysis on existing server (i.e., data center) liquid cooling systems and discovered the following problems in their deployment and operation:

[0032] 1. The structure is not modular. Most existing vertical liquid distribution unit structures are integrally processed or welded, making it difficult to flexibly adjust the number and direction of liquid distribution interfaces according to the layout of different cabinets or the number of cold plates.

[0033] 2. High maintenance costs: If a liquid distribution branch or a valve fails, the entire system needs to be replaced, resulting in long maintenance cycles, high costs, and even long downtime.

[0034] 3. Poor installation adaptability: The existing design is relatively fixed in terms of interface position and installation angle, making it difficult to adapt to servers from different manufacturers or rack layouts, resulting in poor installation adaptability.

[0035] 4. Insufficient scalability: When computing demands increase and the number of cold plates needs to be increased or the layout adjusted, the existing integrated vertical liquid distribution unit cannot be expanded by simply assembling or replacing some modules; it can only be replaced entirely.

[0036] Based on this, the following embodiments of the liquid separation device 10 and liquid cooling system of this application are proposed to solve the above-mentioned technical problems.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment, a liquid dispensing device 10 is provided, including a liquid dispensing module 100, a first terminal module 200, and a second terminal module 300. At least one liquid dispensing module 100 is provided. Each liquid dispensing module 100 is provided with a liquid dispensing through-hole 110 and a liquid dispensing interface 120 communicating with the liquid dispensing through-hole 110. Two adjacent liquid dispensing modules 100 are detachably connected and sealed together, so that the liquid dispensing through-holes 110 are sequentially connected to form a liquid dispensing channel. The first terminal module 200 is sealed and installed at one end of the liquid dispensing channel and is provided with a main interface 210 communicating with the liquid dispensing channel. The second terminal module 300 is sealed and installed at the other end of the liquid dispensing channel and is used to close the liquid dispensing channel.

[0038] In the above embodiments, the liquid dispensing device 10, including the liquid dispensing module 100, the first terminal module 200, and the second terminal module 300, is a modular structure that can be pre-fabricated in the factory. This allows users to select different numbers of liquid dispensing modules 100 according to actual site layout requirements. The liquid dispensing modules 100 are then assembled with the first terminal module 200 and the second terminal module 300 to obtain a suitable liquid dispensing device 10. This eliminates the need for one-time mold manufacturing and customized complex liquid dispensing structures for each heat-generating device, saving costs. It offers flexible installation and can be adapted to servers from different manufacturers or rack layouts, improving the adaptability and scalability of the liquid dispensing device 10. Furthermore, when a liquid dispensing branch or valve malfunctions, only the corresponding module needs to be replaced, reducing maintenance costs, shortening maintenance cycles, and improving the practicality of the liquid dispensing device 10.

[0039] It should be noted that different types and sizes of connectors or devices can be installed at the dispensing interface 120 to meet different needs. Specifically, in this embodiment, a pagoda connector can be installed at the dispensing interface 120, which connects the dispensing module 100 and the dispensing pipe. Similarly, a chuck can be installed at the main interface 210, which connects the first terminal module 200 and the main channel. In other embodiments, valve modules, flow meters, temperature control devices, etc., can also be installed at the dispensing interface 120.

[0040] Two adjacent dispensing modules 100 can be connected by screws, plugs, snaps, or other detachable methods. The first terminal module 200 can be installed at one end of the dispensing channel by screws, plugs, snaps, or other detachable methods. The second terminal module 300 can be installed at the other end of the dispensing channel by screws, plugs, snaps, or other detachable methods.

[0041] like Figure 1 As shown, the dispensing device 10 further includes a locking assembly 400. The locking assembly 400 is configured to fix the first terminal module 200, the second terminal module 300, and each dispensing module 100 as a single unit when the dispensing through holes 110 are sequentially connected to form a dispensing channel, and the first terminal module 200 and the second terminal module 300 are respectively installed at both ends of the dispensing channel. Thus, no relative movement occurs between the first terminal module 200 and the dispensing module 100, between two adjacent dispensing modules 100, or between the dispensing module 100 and the second terminal module 300, ensuring the dispensing channel remains continuous and stable, and improving the reliability of the dispensing device 10.

[0042] The locking component 400 can be configured as a snap-fit ​​locking structure, a binding locking structure, a clamping locking structure, or other locking structures.

[0043] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, optionally, each dispensing module 100 is provided with a first mounting through hole 130 spaced apart from the dispensing through hole 110. The first terminal module 200 is provided with a second mounting through hole 220 corresponding to the first mounting through hole 130. The second terminal module 300 is provided with a third mounting through hole 310 corresponding to the first mounting through hole 130. The locking assembly 400 includes a fastener 410. The fastener 410 is configured to pass through the third mounting through hole 310, each of the first mounting through holes 130 and the second mounting through hole 220 sequentially when the dispensing through holes 110 are sequentially connected to form a dispensing channel, and the first terminal module 200 and the second terminal module 300 are respectively installed at both ends of the dispensing channel, thereby fixing the first terminal module 200, the second terminal module 300 and each dispensing module 100 into a whole. Thus, after the first terminal module 200, each liquid dispensing module 100 and the second terminal module 300 are aligned and assembled into one unit, the fasteners 410 are then passed through the first mounting through hole 130, each first mounting through hole 130 and the second mounting through hole 220 to fasten them, thereby achieving the effect of limiting and locking, and improving the reliability of the liquid dispensing device 10.

[0044] Specifically, in this embodiment, the fastener 410 includes a bolt and a first nut. One end of the bolt abuts against the third terminal module, and the other end of the bolt passes sequentially through the third mounting through hole 310, each of the first mounting through holes 130 and the second mounting through hole 220, and is threadedly connected to the first nut. The first nut is located on the side of the first terminal module 200 away from the second terminal module 300, and abuts against the first terminal module 200.

[0045] In other embodiments, the fastener 410 may also include a screw, a second nut, and a third nut. The screw passes sequentially through the third mounting through hole 310, each of the first mounting through holes 130, and the second mounting through hole 220. Both ends of the screw are threadedly connected to the second nut and the third nut, respectively. The second nut and the third nut are located on opposite sides of the first terminal module 200 and the second terminal module 300, respectively, and engage in corresponding abutment with the first terminal module 200 and the second terminal module 300.

[0046] The number of first mounting through holes 130 on the liquid separation module 100, the number of second mounting through holes 220 on the first terminal module 200, the number of third mounting through holes 310 on the second terminal module 300, and the number of fasteners 410 can all be flexibly adjusted according to actual usage needs.

[0047] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in this specific embodiment, the number of first mounting through holes 130 in the liquid dispensing module 100 is at least two, and each first mounting through hole 130 is evenly arranged around the axis of the liquid dispensing through hole 110. The number of second mounting through holes 220, third mounting through holes 310, and fasteners 410 are the same as the number of first mounting through holes 130 in the liquid dispensing module 100. Each second mounting through hole 220, each third mounting through hole 310, and each fastener 410 is set in a one-to-one correspondence with each first mounting through hole 130 in the liquid dispensing module 100. In this way, there are multiple installation postures between two adjacent liquid dispensing modules 100, so that the orientation of the liquid dispensing interface 120 on the liquid dispensing module 100 is adjustable to meet the needs of different layout scenarios and improve the practicality of the liquid dispensing device 10.

[0048] Specifically, the axis of the first mounting through hole 130 is parallel to the axis of the dispensing through hole 110. There are four first mounting through holes 130, four second mounting through holes 220, and four third mounting through holes 310. The four first mounting through holes 130 are correspondingly located at the four corners of the dispensing module 100, the four second mounting through holes 220 are correspondingly located at the four corners of the first terminal module 200, and the four third mounting through holes 310 are correspondingly located at the four corners of the second terminal module 300. Thus, each dispensing interface 120 can face any of the four sides surrounding the dispensing module 100 as needed.

[0049] like Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the two ends of the dispensing through-hole 110 extend to the two ends of the dispensing module 100, and the dispensing interface 120 is disposed on the side wall of the dispensing through-hole 110. The two ends of the dispensing module 100 are respectively provided with a first positioning part 510 and a second positioning part 520. One of the first terminal module 200 and the second terminal module 300 is provided with a corresponding first positioning part 510, and the other is provided with a corresponding second positioning part 520. The first positioning part 510 is used for positioning and cooperating with the second positioning part 520. Thus, the first positioning part 510 and the second positioning part 520 can play a positioning role when the first terminal module 200 and the liquid distribution module 100 are assembled, so as to ensure that the main interface 210 can be sealed and connected to the liquid distribution channel. The first positioning part 510 and the second positioning part 520 can play a positioning role when two adjacent liquid distribution modules 100 are assembled, so as to ensure that two adjacent liquid distribution holes 110 are aligned and sealed and connected. The first positioning part 510 and the second positioning part 520 can play a positioning role when the liquid distribution module 100 and the second terminal module 300 are assembled, so as to ensure that the second terminal module 300 can close the liquid distribution channel, thereby improving the reliability of the liquid distribution device 10.

[0050] One of the first positioning part 510 and the second positioning part 520 can be configured as a positioning groove, a positioning hole or other positioning structure, and the other of the first positioning part 510 and the second positioning part 520 can be configured as a positioning protrusion, a positioning post or other positioning structure.

[0051] like Figure 2 , Figure 4 and Figure 5As shown, the first positioning part 510 is further configured as a positioning groove 511. The second positioning part 520 is configured as a positioning post 521. The outer contour shape of the positioning post 521 is adapted to the inner contour shape of the positioning groove 511. One end of the liquid dispensing through hole 110 in the liquid dispensing module 100 communicates with the positioning groove 511, and the other end of the liquid dispensing through hole 110 extends to the end face of the positioning post 521. In this way, the automatic alignment and anti-misalignment between modules are achieved through the cooperation of the positioning groove 511 and the positioning post 521, improving the assembly convenience and reliability of the liquid dispensing device 10.

[0052] In this specific embodiment, the positioning groove 511 has a circular cross-section perpendicular to its own axis.

[0053] like Figure 2 and Figure 4 As shown, optionally, the liquid distribution device 10 also includes a seal 530. The seal 530 is mounted on the inner wall of the positioning groove 511 and is configured to seal the outer wall of the positioning post 521 and the inner wall of the positioning groove 511 when the positioning post 521 is inserted into the positioning groove 511. Thus, the positioning post 521 can deform the seal 530 when inserted into the positioning groove 511, thereby enhancing the sealing performance between adjacent modules and forming a reliable liquid seal. This ensures that liquid in the liquid distribution channel will not leak from the connection between adjacent modules, improving the reliability of the liquid distribution device 10.

[0054] The sealing element 530 can be configured as a sealing ring, sealing sleeve or other sealing structure.

[0055] Specifically, in this embodiment, the inner wall of the positioning groove 511 is provided with an annular mounting groove 512, and the sealing element 530 is installed in the annular mounting groove 512. In this way, the sealing element 530 can be pre-installed in the annular mounting groove 512 to ensure that when the positioning post 521 is inserted into the positioning groove 511, the sealing element 530 is stably and reliably filled between the outer wall of the positioning post 521 and the inner wall of the positioning groove 511, thereby improving the reliability of the liquid dispensing device 10.

[0056] In this specific embodiment, two adjacent modules are in surface contact to further improve the sealing performance between them.

[0057] In one embodiment, the first terminal module 200 and / or the second terminal module 300 are provided with a drain port. The drain port communicates with the liquid distribution channel and is used to drain liquid and vent air from the liquid distribution channel. The liquid distribution device 10 also includes a valve installed at the drain port and used to control the opening or closing of the drain port. In this way, the liquid distribution device 10 can drain liquid or vent air through the drain port according to actual use needs, thereby improving the practicality of the liquid distribution device 10.

[0058] In one embodiment, a liquid cooling system is also provided, including at least one cold plate and a liquid distribution device 10 as described in any of the above embodiments, wherein each cold plate is correspondingly connected to each liquid distribution interface 120. Thus, the liquid cooling system includes the liquid distribution device 10, and therefore has the technical effects corresponding to the liquid distribution device 10, which will not be elaborated here.

[0059] The number of cold plates can be flexibly adjusted according to actual usage needs. The number of liquid separation modules 100 can also be flexibly adjusted according to the number of cold plates.

[0060] It should be noted that this application uses the application of a liquid cooling system in server heat dissipation as an example, meaning that the liquid cooling system in this application can also be applied to other heat-generating devices.

[0061] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0062] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0064] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0066] It should also be understood that, in interpreting the connection or positional relationships of components, although not explicitly described, connection and positional relationships are interpreted to include a range of error, which should be within the acceptable deviation range of a specific value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A liquid separation device, characterized in that, include: The liquid separation module has at least one quantity, and each liquid separation module is provided with a liquid separation through hole and a liquid separation interface communicating with the liquid separation through hole. Two adjacent liquid separation modules can be detachably connected and sealed together so that each liquid separation through hole is connected in sequence to form a liquid separation channel. The first terminal module is sealed and installed at one end of the liquid distribution channel, and is provided with a main interface communicating with the liquid distribution channel; The second terminal module is sealed and installed at the other end of the liquid distribution channel and is used to close the liquid distribution channel.

2. The liquid separation device according to claim 1, characterized in that, The liquid dispensing device further includes a locking component, which is configured to fix the first terminal module, the second terminal module, and each of the liquid dispensing modules into one unit when each of the liquid dispensing through holes is sequentially connected to form the liquid dispensing channel, and the first terminal module and the second terminal module are respectively installed at both ends of the liquid dispensing channel.

3. The liquid separation device according to claim 2, characterized in that, Each of the liquid dispensing modules is provided with a first mounting through hole spaced apart from the liquid dispensing through hole. The first terminal module is provided with a second mounting through hole corresponding to the first mounting through hole. The second terminal module is provided with a third mounting through hole corresponding to the first mounting through hole. The locking component includes a fastener. The fastener is configured to pass through the third mounting through hole, each of the first mounting through holes, and the second mounting through hole in sequence when the liquid dispensing through holes are connected in sequence to form the liquid dispensing channel, and the first terminal module and the second terminal module are respectively installed at both ends of the liquid dispensing channel, thereby fixing the first terminal module, the second terminal module, and each of the liquid dispensing modules into one unit.

4. The liquid separation device according to claim 3, characterized in that, The liquid distribution module has at least two first mounting through holes, and each first mounting through hole is evenly arranged around the axis of the liquid distribution through hole. The number of second mounting through holes, the number of third mounting through holes, and the number of fasteners are all the same as the number of first mounting through holes in the liquid distribution module. Each second mounting through hole, each third mounting through hole, and each fastener corresponds one-to-one with each first mounting through hole in the liquid distribution module.

5. The liquid separation device according to any one of claims 1 to 4, characterized in that, The two ends of the liquid dispensing through hole extend to the two ends of the liquid dispensing module, and the liquid dispensing interface is disposed on the side wall of the liquid dispensing through hole. The two ends of the liquid dispensing module are respectively provided with a first positioning part and a second positioning part. One of the first terminal module and the second terminal module is provided with the first positioning part, and the other is provided with the second positioning part. The first positioning part is used to position and cooperate with the second positioning part.

6. The liquid separation device according to claim 5, characterized in that, The first positioning part is configured as a positioning groove, and the second positioning part is configured as a positioning post. The outer contour shape of the positioning post is adapted to the inner contour shape of the positioning groove. One end of the liquid dispensing through hole in the liquid dispensing module is connected to the positioning groove, and the other end of the liquid dispensing through hole extends to the end face of the positioning post.

7. The liquid separation device according to claim 6, characterized in that, The liquid separation device further includes a sealing element, which is installed on the inner wall of the positioning groove and configured to seal the outer wall of the positioning column and the inner wall of the positioning groove when the positioning column is inserted into the positioning groove.

8. The liquid separation device according to claim 7, characterized in that, The inner wall of the positioning groove is provided with an annular mounting groove, and the seal is installed in the annular mounting groove.

9. The liquid separation device according to any one of claims 1 to 4, characterized in that, The first terminal module and / or the second terminal module are provided with a drain port, which is connected to the liquid distribution channel and is used to drain liquid and vent air from the liquid distribution channel. The liquid distribution device also includes a valve, which is installed at the drain port and is used to control the opening or closing of the drain port.

10. A liquid cooling system, characterized in that, It includes at least one cold plate and a liquid dispensing device as described in any one of claims 1 to 9, wherein each of the cold plates is connected to each of the liquid dispensing interfaces.

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