Server, liquid-cooling system and liquid leakage protection device thereof

Abstract

A liquid leakage protection device, comprising a suction apparatus, a plurality of liquid collection components and a plurality of suction pipes, wherein the plurality of liquid collection components are respectively arranged at different positions of a liquid-cooling heat dissipation module to collect leaked liquid from the liquid-cooling heat dissipation module; and the plurality of suction pipes are respectively arranged corresponding to the liquid collection components, a first end of each suction pipe is arranged in a corresponding liquid collection component, a second end of each suction pipe is connected to the suction apparatus, at least one suction pipe is provided with a plugging component at the first end thereof, and the property of the plugging component meets the requirements of blocking gas from passing through and allowing leaked liquid in a corresponding liquid collection component to pass through. The liquid leakage protection device provided in the present application can satisfy the collection and pumping of leaked liquid from multiple branches, and also improves the pumping efficiency and pumping capability, thereby providing a longer operation time for the emergency operation of leakage of the liquid-cooling heat dissipation module. A liquid-cooling system and a server, which also have the above technical effects.

Description

Server, liquid cooling system and liquid leakage protection device thereof

[0001] The present application claims priority to the Chinese patent application No. 202421308083.6, filed on June 7, 2024, and entitled "Server, liquid cooling system and liquid leakage protection device thereof", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of heat dissipation, more particularly, to a server, a liquid cooling system and a liquid leakage protection device thereof. BACKGROUND

[0003] With the increase of server power density, higher requirements are put forward for heat dissipation. Compared with air cooling, liquid cooling can provide higher heat exchange efficiency to meet the heat exchange requirements of servers. At present, the liquid cooling of servers mainly adopts cold plate type liquid cooling. The cold plate type liquid cooling is also called liquid cooling plate. The liquid cooling plate exchanges heat with high heat generating elements of the server, and then connects with a heat exchange device through inlet and outlet liquid pipes to quickly transfer heat to the outside of the server.

[0004] During the operation of the server, the liquid cooling plate, the inlet and outlet liquid pipes or the welding positions of the liquid cooling plate and the inlet and outlet liquid pipes may leak due to fatigue, vibration and other reasons. If the electronic devices of the server come into contact with the leaked high-pressure liquid, short circuit and other faults may occur. Therefore, it is necessary to detect whether the liquid cooling heat dissipation module leaks and to shut down in time when leakage is detected. In order to prolong the processing time, a liquid collecting component can be arranged at the position prone to leakage of the liquid cooling system, and connected with a pump body through a pipeline. When the pump body is started, the leaked liquid collected in the liquid collecting component can be pumped away.

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

[0006] Corresponding to different leakage positions of the liquid cooling heat dissipation module, a plurality of liquid collecting components are usually arranged. The plurality of liquid collecting components are connected with the same pump body through pipelines, that is, the pump body communicates with a plurality of branches to realize the pumping of the leakage. However, when leakage occurs at the position corresponding to some branches in the multiple branches, some branches do not leak. Therefore, when the pump body works, it will pump liquid and gas in the multiple branches at the same time, so that the leakage is difficult to be effectively pumped away.

[0007] SUMMARY

[0008] Therefore, the purpose of the present application is to provide a server, a liquid cooling system and a liquid leakage protection device thereof. The structural design of the server, the liquid cooling system and the liquid leakage protection device thereof can effectively solve the problem that the leakage in multiple branches is difficult to be effectively pumped away.

[0009] To achieve the above object, the present application provides the following technical solutions:

[0010] A liquid leakage protection device, comprising:

[0011] A suction device;

[0012] A plurality of liquid collecting components respectively arranged at different positions of the liquid cooling heat dissipation module to collect liquid leakage of the liquid cooling heat dissipation module;

[0013] A plurality of suction pipelines respectively arranged corresponding to each of the liquid collecting components, a first end of each of the suction pipelines is arranged in the corresponding liquid collecting component, a second end is connected with the suction device, and the first end of at least one of the suction pipelines is provided with a blocking component, the property of the blocking component meets the requirement of being able to block gas passing through and allowing the liquid leakage in the corresponding liquid collecting component to pass through.

[0014] Optionally, in the liquid leakage protection device, the blocking component is a sealing element for sealing the first end, and the sealing element can be unsealed to communicate the corresponding liquid collecting component with the suction device when contacting the liquid leakage in the corresponding liquid collecting component.

[0015] Optionally, in the liquid leakage protection device, the material of the sealing element is a material that can be dissolved in the liquid leakage.

[0016] Optionally, in the liquid leakage protection device, the material of the sealing element is at least one of salt, oxide and water-soluble polymer material.

[0017] Optionally, in the liquid leakage protection device, the sealing element is arranged in a lumen of the suction pipeline; or the sealing element is wrapped outside the first end.

[0018] Optionally, in the liquid leakage protection device, the sealing element is in a block shape, an outer end of the sealing element is located inside an end face of the first end or flush with the end face of the first end, and a gap is formed between the end face of the first end and the liquid collecting component.

[0019] Or, the outer end of the sealing element protrudes from the end face of the first end and is in contact with a bottom surface of the liquid collecting component.

[0020] Optionally, in the liquid leakage protection device, the blocking component is a water-permeable membrane.

[0021] Optionally, in the liquid leakage protection device, further comprising:

[0022] A sensor arranged in the liquid collecting component and used for detecting whether there is liquid leakage;

[0023] A controller is connected with the sensor and the suction device respectively, and used to control the suction device to start when the sensor detects liquid leakage.

[0024] The liquid leakage protection device provided by the application comprises a suction device, a plurality of liquid collecting components and a plurality of suction pipelines. The plurality of liquid collecting components are arranged at different positions of the liquid cooling heat dissipation module respectively to collect liquid leakage of the liquid cooling heat dissipation module. The plurality of suction pipelines are arranged correspondingly with the liquid collecting components respectively. The first end of each suction pipeline is arranged in the corresponding liquid collecting component, and the second end is connected with the suction device. The first end of at least one suction pipeline is provided with a blocking component, and the property of the blocking component meets the requirement of blocking gas passing and allowing liquid leakage in the corresponding liquid collecting component to pass.

[0025] By arranging the blocking component at the first end of the suction pipeline, the blocking component can block gas passing, so that when there is no liquid leakage collected in the corresponding liquid collecting component of the suction pipeline or the collected liquid leakage does not meet the suction requirement, the blocking component will close the suction pipeline, so that when the suction device starts to suck, the liquid leakage in the corresponding liquid collecting component can be better sucked away through other suction pipelines. In addition, when the corresponding liquid collecting component of the suction pipeline collects liquid leakage or the collected liquid leakage meets the suction requirement, the blocking component at the first end of the suction pipeline can allow the liquid leakage to enter the suction pipeline through the first end and be sucked away along the suction pipeline. In summary, the liquid leakage protection device provided by the application can meet the requirements of multi-branch liquid leakage collection and pumping, and when there is liquid leakage in one branch or multiple branches, the liquid leakage can be quickly pumped away, thereby improving the pumping efficiency and pumping capacity, and providing longer operation time for emergency operation of the liquid cooling heat dissipation module leakage.

[0026] In order to achieve the above purpose, the application further provides a liquid cooling system comprising any one of the above liquid leakage protection devices. Since the above liquid leakage protection device has the above technical effects, the liquid cooling system with the liquid leakage protection device should also have corresponding technical effects.

[0027] In order to achieve the above purpose, the application further provides a server comprising any one of the above liquid leakage protection devices or liquid cooling systems. Since the above liquid leakage protection device or liquid cooling system has the above technical effects, the server with the liquid leakage protection device or liquid cooling system should also have corresponding technical effects. BRIEF DESCRIPTION OF DRAWINGS

[0028] 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 prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0029] Fig. 1 is a schematic diagram of a partial structure of a leakage protection device according to an embodiment of the present application;

[0030] Fig. 2 is a schematic diagram of one arrangement of a plugging component;

[0031] Fig. 3 is a schematic diagram of another arrangement of a plugging component.

[0032] Reference signs: 1-collecting component; 2-suction pipeline; 21-plugging component; 11-liquid cooling plate; 12-liquid inlet and outlet pipe. DETAILED DESCRIPTION

[0033] The embodiments of the present application disclose a server, a liquid cooling system and a leakage protection device thereof, to control the opening and closing of a suction pipeline in a physical manner, without manual operation or electric control switching, and to improve the suction capacity.

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described 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 of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0035] The leakage protection device provided by the present application is suitable for, but not limited to, providing leakage collection and pumping for a liquid cooling heat dissipation module of a server. When leakage occurs in the liquid cooling heat dissipation module, the liquid flows into the collecting component along with the drainage pipe and the collecting device, and the suction component is started to pump away the leakage in the collecting component. Generally, multiple collecting components are provided and correspondingly provided with suction pipelines, and the end of each suction pipeline is arranged in the collecting component. The suction device can be specifically provided with one, that is, in a one-to-many manner. When one suction device of the leakage protection device corresponds to multiple branches, one suction pipeline is connected to the corresponding collecting component to form one branch. In order to improve the suction effect, the inventors of the present application find that valves can be arranged in each branch, and each valve is controlled by a person or a circuit to make part of the branches connected and part of the branches disconnected during suction. It can be understood that the connection here refers to that the collecting component is connected to the suction device through the corresponding suction pipeline, and the disconnection refers to that the suction pipeline disconnects the connection between the collecting component and the suction device. However, in the server, the manual control of the valve will affect the timeliness of the leakage pumping, the circuit control cost is too high, and too many control units and lines will be introduced into the server, causing complex and unattractive lines. Moreover, there is no good solution to the above technical problems for the multi-branch pumping structure which is inconvenient to install valves or has high valve installation cost.

[0036] The liquid leakage protection device provided by the application is suitable for a plurality of branches corresponding to a single pumping device, and controls the opening and closing of the pumping pipeline by a physical method, so as to at least partially solve the defects that the valve needs to be detected to detect pipeline leakage, the cost is high, the overall circuit is complex and not beautiful, the pumping capacity is poor without installing the valve, and the like.

[0037] In one embodiment, referring to FIGS. 1-2, the liquid leakage protection device provided by the application includes a pumping device, a liquid collecting component 1, and a pumping pipeline 2. The pumping device is a power device of the liquid leakage protection device, and is used to provide negative pressure to pump and send the liquid leakage collected in the liquid collecting component 1 to the outside of the storage device or the liquid cooling heat dissipation module through the pumping pipeline 2.

[0038] The number of the liquid collecting component 1 and the pumping pipeline 2 is a plurality, which refers to two or more. The plurality of liquid collecting components 1 are respectively arranged at different positions of the liquid cooling heat dissipation module, so as to collect the liquid leakage at different positions of the liquid cooling heat dissipation module. The specific arrangement position of the liquid collecting component 1 can be arranged according to the position of the liquid cooling heat dissipation module which is prone to leakage, such as being arranged at the liquid cooling plate 11 of the liquid cooling heat dissipation module, the inlet and outlet liquid pipe 12 connected with the liquid cooling plate 11, the connection position of the inlet and outlet liquid pipe 12 and the liquid cooling plate 11, the branch water collector, and the like.

[0039] The plurality of pumping pipelines 2 are respectively arranged corresponding to the liquid collecting components 1. Specifically, at least one pumping pipeline 2 is arranged corresponding to one liquid collecting component 1. The first end of each pumping pipeline 2 is arranged in the corresponding liquid collecting component 1, the second end is connected with the pumping device, and the first end of at least one pumping pipeline 2 is provided with a blocking component 21. The blocking component 21 is used to block the gas, and can allow the liquid leakage in the corresponding liquid collecting component 1 to pass through. It should be noted that the blocking component 21 in the application can block the gas by using its own physical or chemical properties, and can automatically allow the liquid leakage collected in the liquid collecting component 1 to pass through, that is, the property of the blocking component 21 meets the requirement of being able to block the gas and allowing the liquid leakage in the corresponding liquid collecting component 1 to pass through. It can be understood that the property here includes the physical or chemical property of the blocking component 21 itself, that is, the opening and closing of the pumping pipeline 2 does not need to rely on artificial operation or electric control. The blocking effect of the blocking component 21 on the gas means that the blocking component 21 can block the gas before encountering the liquid, and whether it can block the gas after encountering the liquid is not limited.

[0040] The liquid leakage protection device provided in the application can block the passage of gas by arranging the blocking component 21 at the first end of the suction pipeline 2. When no liquid leakage is collected in the corresponding liquid collecting component 1 or the collected liquid leakage does not meet the suction requirement, the blocking component 21 can close the suction pipeline 2, so that the liquid leakage in the corresponding liquid collecting component 1 can be better sucked away through other suction pipelines 2 when the suction equipment starts to suck. In addition, when the liquid leakage is collected in the corresponding liquid collecting component 1 or the collected liquid leakage meets the suction requirement, the blocking component 21 at the first end of the suction pipeline 2 can allow the liquid leakage to enter the suction pipeline 2 through the first end and be sucked away along the suction pipeline 2. In summary, the liquid leakage protection device provided in the application can meet the requirements of multi-branch liquid leakage collection and pumping, and can quickly pump away the liquid leakage when one branch or multiple branches leak, thereby improving the pumping efficiency and pumping capacity and providing a longer operation time for emergency operation of the liquid cooling heat dissipation module leakage.

[0041] In some embodiments, the blocking component 21 is a sealing member for sealing the first end, and the sealing member can be unsealed to communicate the corresponding liquid collecting component 1 with the suction equipment when contacting the liquid leakage in the corresponding liquid collecting component 1. In this embodiment, the blocking component 21 is a sealing member, and the blocking component 21 is disposable, that is, the sealing member can maintain the original state when not contacting the liquid leakage, that is, the sealing member blocks the suction pipeline 2 to disconnect the communication between the liquid collecting component 1 and the suction equipment. When the sealing member contacts the liquid leakage, the state of the sealing member changes, thereby unblocking the first end to communicate the liquid collecting component 1 with the suction equipment. The state change of the sealing member blocks the passage of gas while allowing the passage of liquid leakage when the liquid leakage occurs, and the structure is simple and reliable.

[0042] In some embodiments, the material of the sealing member is a material that can be dissolved in the liquid leakage, that is, a material that can be dissolved in the liquid leakage. When the liquid leakage is encountered, the suction pipeline 2 inside the liquid collecting component 1 without liquid leakage is still blocked, and the sealing member inside the suction pipeline 2 of the liquid collecting component 1 with liquid leakage will quickly dissolve, and the corresponding suction pipeline 2 becomes a passage, so that the suction equipment can quickly pump the liquid leakage in the liquid collecting component 1, thereby reducing the damage of the liquid leakage to the server. The sealing member is made of a material that can be easily dissolved in the liquid leakage, and the structure is simple, the cost is low, and the assembly with the suction pipeline 2 is convenient. Specifically, the material of the sealing member is at least one of salt, oxide, and water-soluble polymer material. In other embodiments, the sealing member can also be made of a material that can be broken or reduced in volume when encountering liquid leakage, which can also be unsealed. Alternatively, the sealing member can also be made of a solid that can be chemically changed into a liquid when encountering liquid leakage.

[0043] In some embodiments, referring to FIG. 2, the sealing member is arranged in the lumen of the suction pipe 2; or referring to FIG. 3, the sealing member is wrapped outside the first end. Arranging the sealing member in the lumen of the first end or wrapping the sealing member outside the first end can block the gas and contact the sealing member when the liquid leaks. Arranging the sealing member in the lumen of the first end is convenient to assemble. Wrapping the sealing member outside the first end is convenient to observe the use state of the sealing member.

[0044] In some embodiments, the sealing member is in a block shape, and the outer end of the sealing member is located inside or flush with the end face of the first end, and the end face of the first end has a gap with the liquid collecting component 1. By arranging the gap, the leaked liquid can contact the sealing member to make the sealing member lose the sealing effect.

[0045] In some embodiments, the outer end of the sealing member protrudes from the end face of the first end and contacts the bottom surface of the liquid collecting component 1. It can be understood that when the sealing member is arranged in the lumen of the first end, part of the sealing member protrudes from the end face of the first end. When the sealing member is wrapped outside the first end, the sealing member naturally protrudes from the end face of the first end. Contacting the sealing member with the bottom surface of the liquid collecting component 1 can make the sealing member quickly contact the leaked liquid when the bottom surface leaks, so as to quickly communicate the liquid collecting component 1 with the suction component to quickly suck away the leaked liquid. In other embodiments, the outer end of the sealing member can also be kept a certain distance from the bottom surface of the liquid collecting component 1, so that the sealing member contacts the leaked liquid when the leaked liquid reaches a certain amount, that is, the sealing member contacts the leaked liquid when the leaked liquid reaches the suction demand corresponding to the distance.

[0046] In some embodiments, the blocking component 21 is a water permeable membrane. The water permeable membrane is a membrane that blocks the gas and allows the liquid to pass through, which can be a hollow fiber ultrafiltration membrane and the like. Arranging the water permeable membrane at the sealed connection of the first end of the pumping pipe can block the gas and allow the leaked liquid to pass through. Specifically, the water permeable membrane can be bonded to the inside of the first end of the pumping pipe, or the water permeable membrane can be wrapped outside the first end of the pumping pipe and bonded.

[0047] In some embodiments, the leaked liquid protection device further comprises a sensor and a controller. The sensor is arranged in the liquid collecting component 1 to detect whether there is leaked liquid; the controller is connected with the sensor and the suction device, and is used to control the suction device to start when the sensor detects the leaked liquid. When the liquid cooling heat dissipation module leaks, the sensor detects the leaked liquid and transmits the leaked liquid signal to the controller and can alarm, and the controller can be arranged in the host or the collector to alarm, and the controller starts the suction device, the leaked liquid is collected in one or more liquid collecting components 1, and the sealing member of the suction pipe 2 in the liquid collecting component 1 contacts the liquid and quickly dissolves to lose the sealing effect, the suction pipe 2 becomes a passage, and the leaked liquid can leave the server interior along the suction pipe 2, reducing the damage of the leaked liquid to the server hardware and server information, and increasing the maintenance time of the maintenance personnel.

[0048] Based on the leakage protection device provided in the above embodiments, the application further provides a liquid cooling system comprising any of the leakage protection devices in the above embodiments. Since the liquid cooling system adopts the leakage protection device in the above embodiments, the beneficial effects of the liquid cooling system refer to the above embodiments.

[0049] The application further provides a server comprising any of the leakage protection devices or the liquid cooling system in the above embodiments. Since the server adopts the leakage protection device or the liquid cooling system in the above embodiments, the beneficial effects of the server refer to the above embodiments.

[0050] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be mutually referred to.

[0051] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A leakage protection device, characterized in that, The application relates to a liquid leakage protection device for a liquid cooling system. The device comprises: a suction device; a plurality of liquid collecting components (1) arranged at different positions of the liquid cooling system to collect liquid leakage of the liquid cooling system; 2. The leakage protection device according to claim 1, characterized in that a plurality of suction pipelines (2) respectively arranged corresponding to the liquid collecting components (1), wherein the first end of each of the suction pipelines (2) is arranged in the corresponding liquid collecting component (1), the second end of each of the suction pipelines (2) is connected with the suction device, and the first end of at least one of the suction pipelines (2) is provided with a blocking component (21), and the blocking component (21) is capable of blocking gas and allowing the liquid leakage in the corresponding liquid collecting component (1) to pass through.

3. The leakage protection device according to claim 2, characterized in that The blocking component (21) is a sealing element for sealing the first end, and the sealing element can be unsealed when contacting the liquid leakage in the corresponding liquid collecting component (1) to communicate the corresponding liquid collecting component (1) with the suction device.

4. The leakage protection device according to claim 2, wherein The material of the sealing element is capable of being dissolved in the liquid leakage.

5. The leakage protection device according to any one of claims 2 to 4, characterized in that The material of the sealing element is at least one of salt, oxide and water-soluble polymer material.

6. The leakage protection device according to claim 5, wherein The sealing element is arranged in the lumen of the suction pipeline (2), or the sealing element is wrapped on the first end. The sealing element is in a block shape, the outer end of the sealing element is located in the end face of the first end or flush with the end face of the first end, and the end face of the first end and the liquid collecting component (1) have a gap.

7. The leakage protection device according to claim 1, wherein Or, the outer end of the sealing element protrudes from the end face of the first end and contacts the bottom surface of the liquid collecting component (1).

8. The leakage protection device according to any one of claims 1 to 4, characterized in that The blocking component (21) is a water-permeable membrane. Further comprising: a sensor arranged in the liquid collecting component (1) to detect whether there is liquid leakage; 9. A liquid cooling system, characterized by, a controller connected with the sensor and the suction device to control the suction device to start when the sensor detects liquid leakage.

10. A server, characterized by The application further relates to a liquid cooling system comprising the liquid leakage protection device according to any one of claims 1-8. The application further relates to a liquid cooling system comprising the liquid leakage protection device according to any one of claims 1-8 or the liquid cooling system according to claim 9.

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