Splash prevention device and liquid cooling system

Abstract

A splash prevention device, comprising: a housing, multi-stage foldable doors and elastic members, the housing being provided with through holes, and one side of each multi-stage foldable door being hinged to the inside of the housing. The elastic members are connected to the multi-stage foldable doors and the housing; under the action of the elastic force thereof, the elastic members are capable of pressing the multi-stage foldable doors against the inner wall of the housing so as to close the through holes; and, under the action of an external force, each multi-stage foldable door flips over in a direction away from a through hole so as to open the through hole. During specific application, a docking structure of two joints will be stored inside the housing; when the joints splashes a coolant, the coolant will be confined within the housing, so that the coolant is prevented from leaking to apparatuses that require cooling. When a tail end of each multi-stage foldable door is in contact with the joints in the housing, the tail end of the multi-stage foldable door will reversely rotate for avoidance, and therefore the multi-stage foldable doors avoid the risk of being obstructed and non-rotatable during opening due to limited heights of housings.

Description

Splash-proof device and liquid cooling system

[0001] The present application claims priority to the Chinese patent application No. 202421543964.6, filed on June 28, 2024, and entitled "Splash-proof device and liquid cooling system", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of liquid cooling, in particular to a splash-proof device and a liquid cooling system. BACKGROUND

[0003] Some electronic devices generate a large amount of heat when running, and in order to ensure stable operation, heat dissipation treatment is needed. For example, a server generates a large amount of heat when running, and currently a liquid cooling device can be used to cool it to ensure stable operation of the server.

[0004] The working principle of the existing liquid cooling device is as follows: the cooling liquid is delivered to the liquid cooling part by the liquid cooling pipeline, the liquid cooling part exchanges heat with the equipment, and the cooled cooling liquid flows out from the liquid cooling part, and such circulation can realize cooling of the equipment.

[0005] In the process of implementing the present application, the inventors found at least the following problems in the prior art:

[0006] Since the liquid cooling device has a structure of realizing pipeline butt joint through a joint, when the joint is separated, there is a risk of liquid spraying, and if the liquid is sprayed onto the equipment, it will have an adverse effect on the electronic components on the equipment.

[0007] Therefore, how to provide a splash-proof device is a technical problem that those skilled in the art need to solve at present.

[0008] CONTENT OF THE APPLICATION

[0009] The purpose of the present application is to provide a splash-proof device and a liquid cooling system, which can effectively reduce the risk of cooling liquid spraying onto the equipment.

[0010] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0011] A splash-proof device comprises a shell, a multi-stage foldable door and an elastic member, the shell is provided with a through hole, one side of the multi-stage foldable door is hinged to the shell, the elastic member is connected with the multi-stage foldable door and the shell, and the elastic member closes the through hole by abutting the multi-stage foldable door against the inner wall of the shell under the action of its elasticity, and the multi-stage foldable door is flipped towards the direction away from the through hole under the action of external force to open the through hole.

[0012] In some embodiments, the multi-stage foldable door comprises a first door panel and a second door panel, one side of the first door panel is hinged to the shell through a first hinge shaft, the elastic member is a first torsion spring, the first torsion spring is sleeved on the first hinge shaft, and two ends of the first torsion spring are connected with the shell and the first door panel respectively; the second door panel is hinged to one side of the first door panel away from the first hinge shaft through a second hinge shaft, and the second door panel is further connected with the first door panel through a second torsion spring.

[0013] In some embodiments, the second torsion spring is mounted on the second hinge shaft, the first door panel or the second door panel.

[0014] In some embodiments, one side of the first door panel away from the through hole is provided with a mounting column, the second torsion spring is sleeved on the mounting column, one side of the second door panel away from the through hole is provided with a fixing part, one end of the second torsion spring is connected to the first door panel, and the other end is connected to the fixing part.

[0015] In some embodiments, the splash-proof device further comprises a pressing rod and a connecting rod, two ends of the connecting rod are respectively hinged to the pressing rod and the multi-stage foldable door, one side of the shell provided with the through hole is further provided with a guide hole, the pressing rod is provided with a guide rod protruding out of the guide hole, the guide rod is movable relative to the guide hole, and when the guide rod is extruded by an external force, the multi-stage foldable door will be turned inwardly by the connecting rod.

[0016] In some embodiments, the shell is provided with a plurality of through holes, the shell is provided with a plurality of groups of foldable door assemblies corresponding to the through holes one by one, each group of the foldable door assemblies comprises two oppositely arranged multi-stage foldable doors, and each multi-stage foldable door is hinged to the pressing rod through one connecting rod.

[0017] In some embodiments, one side of the bottom of the shell is provided with a drain port, and the drain port is in communication with the inner cavity of the shell.

[0018] In some embodiments, one side of the shell is provided with a protruding part extending outwardly, and the drain port is arranged at the bottom of the protruding part.

[0019] In some embodiments, the shell comprises a bottom shell and an upper cover, the upper cover is detachably connected to the bottom shell, the through hole is arranged on the upper cover, one end of the multi-stage foldable door is hinged to one side wall of the bottom shell, and the other end is hinged to one side wall of the upper cover.

[0020] A liquid cooling system comprising the splash-proof device of any one of the above.

[0021] Compared with the prior art, the technical scheme has at least the following advantages:

[0022] The anti-spraying device provided in the application moves the joint of the server cooling liquid conveying pipeline towards the direction of the multi-stage foldable door during installation. With the pressure of the joint of the server cooling liquid conveying pipeline, the multi-stage foldable door can be gradually opened until the joint of the server cooling liquid conveying pipeline is connected with the joint of the cooling liquid conveying pipeline of the distribution header. At this time, the joint connection structure of the two joints is accommodated in the shell. When the joint sprays cooling liquid, the cooling liquid is limited in the shell to avoid leakage of the cooling liquid to the equipment that needs to be cooled.

[0023] When the joint of the server cooling liquid conveying pipeline is pulled out from the cooling liquid conveying pipeline of the distribution header, the multi-stage foldable door is automatically reset under the elastic force of the elastic member to close the through hole, thereby achieving the purpose of preventing the cooling liquid from spraying out of the through hole. Moreover, when the through hole is opened, the movement of the joint of the server cooling liquid conveying pipeline can be relied on to achieve the opening without other additional operations, thus having the advantage of convenient operation.

[0024] In addition, since the multi-stage foldable door is adopted, when the end of the multi-stage foldable door contacts the joint of the cooling liquid conveying pipeline of the distribution header in the shell, the end of the multi-stage foldable door will be reversely rotated to avoid the contact. With the continuous insertion of the joint of the server cooling liquid conveying pipeline, the multi-stage foldable door will continue to rotate until the end of the multi-stage foldable door moves past the joint of the cooling liquid conveying pipeline of the distribution header. At this time, the two joints can be connected, that is, by adopting the multi-stage foldable door, the risk that the multi-stage foldable door cannot be rotated due to the contact with the joint of the cooling liquid conveying pipeline of the distribution header when the through hole is opened due to the limited height space of the shell can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the application, and those skilled in the art can also obtain other drawings according to the provided drawings without creative labor.

[0026] Fig. 1 is a perspective structural schematic view of an anti-spraying device provided in an embodiment of the application;

[0027] Fig. 2 is an exploded structural schematic view of an anti-spraying device provided in an embodiment of the application;

[0028] Fig. 3 is a structural schematic view of the anti-spraying device after removing the upper cover when the anti-spraying device is in an opened state;

[0029] Fig. 4 is a structural schematic view of the anti-spraying device after removing the upper cover when the anti-spraying device is in a closed state;

[0030] Figure 5 is a schematic diagram of the front view of the splash-proof device in the open state after removing the upper cover.

[0031] The reference signs are as follows: 10 - housing, 101 - through hole, 102 - guide hole, 103 - drainage port, 11 - bottom shell, 111 - front plate, 112 - bottom plate, 113 - left lower plate, 114 - right lower plate, 12 - upper cover, 121 - rear plate, 122 - top plate, 123 - left upper plate, 124 - right upper plate; 20 - multi-stage foldable door, 21 - elastic member, 22 - first door plate, 221 - mounting portion, 222 - mounting column, 23 - second door plate, 231 - fixing portion, 24 - second torsional spring, 25 - first hinge shaft, 26 - second hinge shaft; 30 - pressing rod, 31 - horizontal rod, 32 - vertical rod; 40 - connecting rod; 50 - joint of the water distributor cooling liquid delivery pipeline. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Please refer to Figures 1-5, the splash-proof device provided by the embodiments of the present application comprises a housing 10, a multi-stage foldable door 20 and an elastic member 21. The housing 10 is provided with a through hole 101. One side of the multi-stage foldable door 20 is hinged to the housing 10, for example, a through hole 101 for the joint of a first pipeline to pass through can be provided on the top of the housing 10 (the orientation shown in the drawing is taken as a reference), and a mounting hole for the joint of a second pipeline to pass through can be provided on the bottom of the housing 10 (the orientation shown in the drawing is taken as a reference), or the second pipeline can be pre-fixed in the mounting hole. The elastic member 21 is connected with the multi-stage foldable door 20 and the housing 10. Under the action of the elasticity of the elastic member 21, the multi-stage foldable door 20 can be tightly pressed against the inner wall of the housing 10 to close the through hole 101. Under the action of an external force, the multi-stage foldable door 20 is flipped in the direction away from the through hole 101 to open the through hole 101.

[0034] In specific applications, the joint of the second pipeline can be inserted through the installation hole and extended into the shell 10, wherein the first pipeline can be selected as a server cooling liquid conveying pipeline, and the second pipeline can be selected as a distributor cooling liquid conveying pipeline. During installation, the joint of the server cooling liquid conveying pipeline is moved towards the multi-stage foldable door 20, and the multi-stage foldable door 20 can be gradually opened under the pressure of the joint of the server cooling liquid conveying pipeline, until the joint 50 of the distributor cooling liquid conveying pipeline is in the docking position, at which time the docking structure of the two joints is accommodated in the shell 10. When the joint sprays cooling liquid, the cooling liquid is limited in the shell 10 to avoid leakage of the cooling liquid to the equipment to be cooled. After the joint of the server cooling liquid conveying pipeline is pulled out of the distributor cooling liquid conveying pipeline, the multi-stage foldable door 20 is automatically reset under the elastic force of the elastic member 21 to close the through hole 101, thereby achieving the purpose of preventing the cooling liquid from being sprayed from the through hole 101. Moreover, when the through hole 101 is opened, the movement of the joint of the server cooling liquid conveying pipeline can be relied on to achieve the purpose, without the need for other additional operations, thus having the advantage of convenient operation. In addition, since the multi-stage foldable door 20 is adopted, when the end of the multi-stage foldable door 20 contacts the joint 50 of the distributor cooling liquid conveying pipeline in the shell 10, the end of the multi-stage foldable door 20 will be reversely rotated to avoid, and as the joint of the server cooling liquid conveying pipeline continues to extend, the multi-stage foldable door 20 will continue to rotate until the end of the multi-stage foldable door 20 moves past the joint 50 of the distributor cooling liquid conveying pipeline, at which time the two joints can be docked, that is, by adopting the multi-stage foldable door 20, the risk that the multi-stage foldable door 20 cannot be rotated due to the limited height space of the shell 10 and the joint 50 of the distributor cooling liquid conveying pipeline being touched and hindered during opening can be avoided. The joint of the first pipeline and the joint of the second pipeline are generally blind plug joints, and the two joints are used in pairs.

[0035] In some embodiments, as shown in FIGS. 3-5, the multi-stage foldable door 20 includes a first door panel 22 and a second door panel 23, one side of the first door panel 22 is hinged to the housing 10 through a first hinge shaft 25, the elastic member 21 is a first torsion spring, the first torsion spring is sleeved on the first hinge shaft 25, and two ends of the first torsion spring are connected with the housing 10 and the first door panel 22 respectively, for example, a mounting portion 221 can be arranged on the back of the first door panel 22, one end of the first torsion spring is connected to the mounting portion 221, and the other end of the first torsion spring is hooked in the housing 10; the second door panel 23 is hinged to one side of the first door panel 22 away from the first hinge shaft 25 through a second hinge shaft 26, and the second door panel 23 is further connected with the first door panel 22 through a second torsion spring 24, and the second door panel 23 can rotate relative to the first door panel 22 about the second hinge shaft 26. When the joint of the server cooling liquid conveying pipeline is not connected, the first door panel 22 is pressed against the inner top surface of the housing 10 under the torsional force of the first torsion spring, and the second door panel 23 is also pressed against the inner top surface of the housing 10 under the action of the second torsion spring 24. When the joint of the server cooling liquid conveying pipeline is connected, if the second door panel 23 contacts the joint 50 of the server cooling liquid conveying pipeline, the second door panel 23 will rotate reversely as the joint of the server cooling liquid conveying pipeline continues to extend, until the second door panel 23 moves past the joint 50 of the server cooling liquid conveying pipeline, so that the two joints can be connected, and thus the second door panel 23 can rotate relative to the first door panel 22, which can effectively avoid the problem that the joint in the housing 10 interferes with the multi-stage foldable door 20 and cannot be connected, and thus the multi-stage foldable door 20 has the advantage of avoiding the risk that the door touches the top end of the joint in the housing 10 when the door is opened due to the limited height space of the housing 10. In addition, the foldability of the multi-stage foldable door 20 can greatly reduce the space required by the housing 10, thereby reducing the occupation of the internal space of the liquid cooling cabinet.

[0036] In some embodiments, the second torsion spring 24 is mounted on the second hinge shaft 26, the first door panel 22 or the second door panel 23. For example, the second torsion spring 24 is mounted on the first door panel 22, a mounting column 222 is arranged on the side of the first door panel 22 away from the through hole 101, the second torsion spring 24 is sleeved on the mounting column 222, the mounting column 222 is preferably an L-shaped structure, the mounting column 222 can be integrally formed on the first door panel 22, the second torsion spring 24 is sleeved on the column body parallel to the first door panel 22, a fixing portion 231 is arranged on the side of the second door panel 23 away from the through hole 101, one end of the second torsion spring 24 is connected to the first door panel 22, and the other end is connected to the fixing portion 231. Arranging the second torsion spring 24 on the side of the first door panel 22 away from the through hole 101 can effectively ensure the tightness of the contact between the multi-stage foldable door 20 and the inner top surface of the housing 10.

[0037] In some embodiments, as shown in FIG. 2 and FIG. 3, the splash-proof device further comprises a pressing rod 30 and a connecting rod 40, two ends of the connecting rod 40 are respectively hinged to the pressing rod 30 and the multi-stage foldable door 20, for example, the connecting rod 40 is located below the multi-stage foldable door 20 in the closed state, specifically, a hinge shaft can be arranged on one side of the lower surface of the first door panel 22 of the multi-stage foldable door 20, the hinge shaft is parallel to the plane where the first door panel 22 is located, one end of the connecting rod 40 is hinged to the hinge shaft, and the other end of the connecting rod 40 is hinged to the structure below the multi-stage foldable door 20 on the pressing rod 30. In order to ensure the stability of the movement of the pressing rod 30 relative to the shell 10, the side of the shell 10 provided with the through hole 101 is further provided with a guide hole 102, the pressing rod 30 is provided with a guide rod protruding from the guide hole 102, and the guide rod can move relative to the guide hole 102. When the guide rod is extruded by an external force, it will drive the multi-stage foldable door 20 to flip inside the shell 10 through the connecting rod 40. For example, in the process of connecting two pipelines, the server can move towards the shell 10, after the server contacts the pressing rod 30, as the server continues to advance, the pressing rod 30 will be pushed into the shell 10, in this process, the pressing rod 30 will drive the multi-stage foldable door 20 to open the through hole 101 through the connecting rod 40, at the same time, the joint of the server cooling liquid delivery pipeline will extend into the shell 10 from the through hole 101 to be connected with the joint 50 of the cooling liquid delivery pipeline of the shell 10. When the server moves away from the shell 10, the two joints are separated, at this time, the two joints are still located in the shell 10, so that the cooling liquid that can be sprayed can be stored in the shell 10 to prevent the cooling liquid from being splashed on the server, after the joint of the server cooling liquid delivery pipeline moves out of the shell 10, the multi-stage foldable door 20 is reset under the action of the elastic member 21 to close the through hole 101.

[0038] In some embodiments, the shell 10 is provided with a plurality of through holes 101, for example, as shown in FIG. 1, the upper surface of the shell 10 is provided with two through holes 101, and the shell 10 is provided with a plurality of foldable door assemblies corresponding to the through holes 101, each foldable door assembly comprises two oppositely arranged multi-stage foldable doors 20, that is, the foldable door assembly is of a split type structure, wherein each multi-stage foldable door 20 is hinged to the pressing rod 30 through a connecting rod 40, as shown in FIG. 4, the pressing rod 30 comprises a horizontal rod 31 and two vertical rods 32 located at both ends of the horizontal rod 31, the horizontal rod 31 and the vertical rod 32 are preferably integrally formed, the horizontal rod 31 is located at the side of the lower side of the multi-stage foldable door 20, when the foldable door is opened, the horizontal rod 31 will not block the rotation of the multi-stage foldable door 20, that is, the end of the multi-stage foldable door 20 can be rotated to a position below the horizontal rod 31. Two groups of foldable door assemblies are located between the two vertical rods 32, when the server pushes the two vertical rods 32, the opening of the four multi-stage foldable doors 20 can be realized, so the operation is more convenient.

[0039] In some embodiments, one side of the bottom of the shell 10 is provided with a drainage port 103, which is in communication with the inner cavity of the shell 10, that is, the cooling liquid at the two joints can be drained from the drainage port 103 on the side of the shell 10, wherein a water collecting groove can be arranged below the drainage port 103, and then the water collecting pipe and the water collecting tray are uniformly discharged to the designated position. Wherein, an outwardly extending protruding portion can be arranged on one side of the shell 10, the protruding portion can be integrally formed with the shell 10, and the drainage port 103 is arranged at the bottom of the protruding portion.

[0040] In some embodiments, as shown in FIG. 1 and FIG. 2, the shell 10 includes a bottom shell 11 and an upper cover 12, the upper cover 12 is detachably connected to the bottom shell 11, for example, a detachable connection mode such as clamping or screwing can be used for connection, the through hole 101 is arranged on the upper cover 12, the mounting hole is arranged on the bottom shell 11, one end of the multi-stage foldable door 20 is hinged to one side wall of the bottom shell 11, and the other end is hinged to one side wall of the upper cover 12. For example, as shown in FIG. 1 and FIG. 2, the shell 10 is a rectangular hollow shell structure, the bottom shell 11 includes a front plate 111, a bottom plate 112, a left lower plate 113 and a right lower plate 114, the upper cover 12 includes a rear plate 121, a top plate 122, a left upper plate 123 and a right upper plate 124, the through hole 101 and the guide hole 102 are arranged on the top plate 122, in addition, a positioning hole can be arranged at a position between the two through holes 101 on the top plate 122, and a positioning pin corresponding to the positioning hole is arranged on the server, so as to ensure the accuracy of the positions. After the upper cover 12 is buckled on the bottom shell 11, a rectangular hollow shell structure is formed, and the advantage of this structure is that the two ends of the multi-stage foldable door 20 can be hinged to the front plate 111 and the rear plate 121 of the shell 10.

[0041] The embodiment of the present application also provides a liquid cooling system, which includes the anti-splashing device provided by any one of the above embodiments, and further includes a server cooling liquid delivery pipeline and a server cooling liquid delivery pipeline, and the joints of the server cooling liquid delivery pipeline and the server cooling liquid delivery pipeline are connected to the shell. The beneficial effects of the liquid cooling system can be referred to the anti-splashing device described above, which will not be repeated here.

[0042] It should be noted that the water collector cooling liquid conveying pipeline includes a liquid supply main pipeline and a liquid return main pipeline, the liquid supply main pipeline and the liquid return main pipeline can be arranged in a vertically installed manner in the liquid cooling cabinet, the liquid supply main pipeline and the liquid return main pipeline respectively include a pipe body and a plurality of male connectors (the male connector has a self-sealing function, that is, the male connector is separated from the female connector, and the male connector can cut off its own flow channel under the cooperation of the movable valve core and the sealing structure in the male connector) arranged at intervals on the pipe body, the pipe body can be used to connect the external liquid cooling pipeline to form a complete liquid cooling circulation loop, and the male connector can be used to connect the female connector (also having a self-sealing function) of the branch pipeline. The function of the liquid supply main pipeline is to distribute the low-temperature cooling liquid conveyed by the external liquid cooling pipeline to each branch pipeline, and the low-temperature cooling liquid is conveyed to the liquid cooling terminal (such as a cold plate) of the equipment (such as a server) for heat dissipation by the branch pipeline to meet the continuous heat dissipation needs of the equipment. The function of the liquid return main pipeline is to collect the high-temperature cooling liquid flowing out of each liquid cooling terminal and convey it to the external liquid cooling pipeline to realize liquid cooling system water return.

[0043] It should also be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0044] The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0045] The above provides a kind of anti-splashing device and liquid cooling system provided in the present application in detail.This paper applies specific examples to the principle and implementation mode of the present application are described, the above embodiment is only used to help understanding the core idea of the present application.It should be pointed out, for the ordinary skill in the art, on the premise of not departing from the principle of the present application, the present application can be improved and modified, these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A splash-proof device, characterized in that, include: The enclosure (10), the multi-stage foldable door (20), and the elastic element (21) are provided. The enclosure (10) is provided with a through hole (101). One side of the multi-stage foldable door (20) is hinged to the enclosure (10). The elastic element (21) is connected to the multi-stage foldable door (20) and the enclosure (10). Under the action of its elastic force, the elastic element (21) presses the multi-stage foldable door (20) against the inner wall of the enclosure (10) to close the through hole (101). Under the action of external force, the multi-stage foldable door (20) flips away from the through hole (101) to open the through hole (101).

2. The anti-splash device according to claim 1, characterized in that, The multi-level foldable door (20) includes a first door panel (22) and a second door panel (23). One side of the first door panel (22) is hinged to the housing (10) via a first hinge shaft (25). The elastic element (21) is a first torsion spring, which is sleeved on the first hinge shaft (25). The two ends of the first torsion spring are respectively connected to the housing (10) and the first door panel (22). The second door panel (23) is hinged to the side of the first door panel (22) away from the first hinge shaft (25) via a second hinge shaft (26). The second door panel (23) and the first door panel (22) are also connected via a second torsion spring (24).

3. The anti-splash device according to claim 2, characterized in that, The second torsion spring (24) is mounted on the second hinge shaft (26), the first door panel (22), or the second door panel (23).

4. The anti-splash device according to claim 3, characterized in that, The first door panel (22) has a mounting post (222) on the side opposite to the through hole (101), and the second torsion spring (24) is sleeved on the mounting post (222). The second door panel (23) has a fixing part (231) on the side opposite to the through hole (101), and one end of the second torsion spring (24) is connected to the first door panel (22), and the other end is connected to the fixing part (231).

5. The anti-splash device according to any one of claims 1 to 4, characterized in that, The anti-splash device also includes a pressure rod (30) and a connecting rod (40). The two ends of the connecting rod (40) are respectively hinged to the pressure rod (30) and the multi-stage foldable door (20). The housing (10) is provided with a guide hole (102) on one side of the through hole (101). The pressure rod (30) is provided with a guide rod extending out of the guide hole (102). The guide rod can move relative to the guide hole (102). When the guide rod is squeezed by external force, it will drive the multi-stage foldable door (20) to flip inside the housing (10) through the connecting rod (40).

6. The anti-splash device according to claim 5, characterized in that, The housing (10) is provided with a plurality of through holes (101), and the housing (10) is provided with a plurality of foldable door assemblies corresponding one-to-one with the through holes (101). Each set of foldable door assemblies includes two multi-level foldable doors (20) arranged opposite to each other. Each multi-level foldable door (20) is hinged to the pressure rod (30) through a connecting rod (40).

7. The anti-splash device according to claim 1, characterized in that, A drain outlet (103) is provided on one side of the bottom of the housing (10), and the drain outlet (103) is connected to the inner cavity of the housing (10).

8. The anti-splash device according to claim 7, characterized in that, The housing (10) has an outwardly extending protrusion on one side, and the drain outlet (103) is located at the bottom of the protrusion.

9. The anti-splash device according to claim 1, characterized in that, The housing (10) includes a bottom shell (11) and a top cover (12). The top cover (12) is detachably connected to the bottom shell (11). The through hole (101) is provided on the top cover (12). One end of the multi-level foldable door (20) is hinged to a side wall of the bottom shell (11), and the other end is hinged to a side wall of the top cover (12).

10. A liquid cooling system, characterized in that, Includes the anti-splash device as described in any one of claims 1 to 9.

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