CN115962899A

CN115962899A - Liquid leakage detection device of liquid cooling heat dissipation system, liquid cooling heat dissipation system and server

Info

Publication number: CN115962899A
Application number: CN202211585382.XA
Authority: CN
Inventors: 谷风宝; 朱帅锋
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-04-14

Abstract

The invention relates to the technical field of leakage detection, and provides a leakage detection device of a liquid cooling heat dissipation system, the liquid cooling heat dissipation system and a server. The above-mentioned liquid cooling system's weeping detection device includes: the liquid leakage induction line is woven into a net structure and wraps the outside of a cooling pipe of the liquid cooling heat dissipation system; the liquid leakage controller is electrically connected with the liquid leakage induction line and used for judging the position of the cooling pipe where liquid leakage occurs according to a signal sent by the liquid leakage induction line. The liquid leakage detection device of the liquid cooling heat dissipation system is characterized in that the liquid leakage induction line of the net-shaped structure is arranged outside the cooling pipe, when liquid leakage occurs in the cooling pipe, the liquid leakage induction line sends a signal to the liquid leakage controller, the position of the short circuit of the liquid leakage induction line can be calculated by the liquid leakage controller, the liquid leakage position of the cooling pipe is further determined, the contact range of the liquid leakage induction line and the liquid leakage in the unit area is enlarged by the liquid leakage induction line of the net-shaped structure, and therefore the liquid leakage detection precision is improved.

Description

Liquid-cooling radiating system, liquid-cooling radiating system and server

Technical Field

The invention relates to the technical field of leakage detection, in particular to a leakage detection device of a liquid cooling heat dissipation system, the liquid cooling heat dissipation system and a server.

Background

With the development of networks, the data processing requirements are getting larger, the performance requirements of servers are getting higher, the power consumption of servers is getting higher, and the development of server heat dissipation is from the initial use of heat sinks on heat generating devices to the addition of fans on the heat sinks, so that the server system can be maintained at a stable operating temperature. At present, an air-cooled heat dissipation mode cannot meet the current heat dissipation requirements, a liquid-cooled heat dissipation system is applied, the liquid-cooled heat dissipation system can efficiently take away heat of a high-heat core heating chip, and the liquid-cooled heat dissipation system has the advantages of being high in heat dissipation efficiency, saving energy consumption and reducing noise of the heat dissipation system.

The liquid cooling heat dissipation system needs to accurately monitor the liquid leakage condition and timely process the liquid leakage condition, otherwise, the server can be damaged irreversibly. In the prior art, the leakage detection line is usually wound on the water pipe, the impedance of the leakage detection line can be changed when the water pipe leaks, and leakage monitoring is realized by detecting the change of the impedance. However, the relation between the impedance of the leakage detection line and the amount of leakage water is nonlinear and unstable, such as the continuous leakage of a certain part of the water pipe, but the leakage detection line is not wound at the position, and along with the increase of the soaking area, the leakage detection line can detect the leakage when being soaked, so that the detection precision is low.

Disclosure of Invention

The invention provides a liquid leakage detection device of a liquid cooling heat dissipation system, the liquid cooling heat dissipation system and a server, which are used for solving the defect of low liquid leakage detection precision of the liquid leakage detection device in the prior art.

The invention provides a liquid leakage detection device of a liquid cooling heat dissipation system, which comprises: the liquid leakage induction line is woven into a net structure and wraps the outside of a cooling pipe of the liquid cooling heat dissipation system, and comprises a plurality of conductive polymers which are woven into the net structure; under the condition that the cooling pipe does not leak liquid, the current value between the two conductive polymers is a normal value; under the condition that the cooling pipe leaks, the current value between the two conductive polymers changes; and the leakage controller is electrically connected with the leakage induction line and used for judging the position of the cooling pipe where leakage occurs according to the signal sent by the leakage induction line.

According to the leakage detection device of the liquid cooling heat dissipation system, the side length of each grid in the net-shaped structure is greater than or equal to 0.1mm and less than or equal to 2mm.

According to the leakage detection device of the liquid cooling heat dissipation system, the leakage induction line further comprises a water absorption coating layer, and the water absorption coating layer is wrapped outside the conductive polymer.

According to the leakage detection device of the liquid cooling heat dissipation system, provided by the invention, the water absorption coating layer is coated with the color developing powder, so that the water absorption coating layer changes color after meeting water.

The liquid leakage detection device of the liquid cooling heat dissipation system further comprises a plurality of color sensors, the color sensors are arranged on the liquid cooling heat dissipation system and used for monitoring color changes of the water absorption coating layer, and the color sensors are electrically connected with the liquid leakage controller.

The invention provides a leakage detection device of a liquid cooling heat dissipation system, which further comprises: the liquid inlet pipe is used for being connected with one end of the first channel in the liquid cooling plate; a pair of liquid reserve tank, two the liquid reserve tank set up respectively in the both sides of liquid cooling board, every the liquid reserve tank cover is established a plurality of liquid cooling board one side the outside of weeping response line, the liquid reserve tank is used for collecting the weeping.

The invention provides a leakage detection device of a liquid cooling heat dissipation system, which further comprises: the first valve is arranged on the liquid inlet pipe and is electrically connected with the liquid leakage controller; a plurality of first level sensor, every all be provided with one in the liquid reserve tank first level sensor, first level sensor with weeping controller electric connection.

The liquid leakage detection device of the liquid cooling heat dissipation system further comprises: the liquid level controller comprises a plurality of liquid level sensors, a liquid level controller and a liquid level controller, wherein the liquid level controller is electrically connected with the liquid level sensors; and the liquid storage tank is connected with one liquid outlet pipe, each liquid outlet pipe is provided with a second valve.

The invention also provides a liquid cooling heat dissipation system which comprises a liquid cooling plate, a cooling pipe and the liquid leakage detection device, wherein a plurality of channels are arranged inside the liquid cooling plate and are connected through the cooling pipe to form a communicated cooling pipeline, and a liquid leakage induction line of the liquid leakage detection device is wrapped outside the cooling pipe in a net-shaped structure.

The invention also provides a server, which comprises a shell, a plurality of heating elements and the liquid cooling heat dissipation system, wherein the liquid cooling heat dissipation system and the heating elements are arranged in the shell, and the liquid cooling heat dissipation system is positioned below the heating elements.

According to the liquid leakage detection device of the liquid cooling heat dissipation system, the liquid leakage induction line of the net structure is arranged outside the cooling pipe and is electrically connected with the liquid leakage controller, when liquid leakage occurs in the cooling pipe, the liquid leakage induction line sends a signal to the liquid leakage controller, the liquid leakage controller can calculate the position where the liquid leakage induction line is in a short circuit, and then the liquid leakage position of the cooling pipe is determined, the liquid leakage induction line of the net structure increases the contact range of the liquid leakage induction line and the liquid leakage in a unit area, and therefore the liquid leakage detection precision is improved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a liquid leakage detection device of a liquid cooling heat dissipation system provided by the invention;

reference numerals:

10: a leakage sensing line; 20: a liquid inlet pipe; 21: a first valve; 30: a liquid storage tank; 40: a liquid outlet pipe; 41: a second valve; 50: a first liquid level sensor; 60: a second liquid level sensor; 100: a liquid-cooled plate; 101: and (7) cooling the tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The features of the terms first and second in the description and in the claims of the invention may explicitly or implicitly include one or more of these features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The liquid leakage detection device of the liquid cooling heat dissipation system, the liquid cooling heat dissipation system and the server according to the present invention will be described with reference to fig. 1.

As shown in fig. 1, in an embodiment of the present invention, a liquid leakage detection apparatus of a liquid-cooled heat dissipation system includes: a leakage sensing line 10 and a leakage controller. The liquid leakage induction line 10 is woven into a net structure and wrapped outside a cooling pipe 101 of the liquid cooling heat dissipation system, the liquid leakage induction line 10 comprises a plurality of conductive polymers, and under the condition that liquid leakage does not occur in the cooling pipe 101, the current value between the two conductive polymers is a normal value; in the case where the cooling pipe 101 leaks, the current value between the two conductive polymers changes. The liquid leakage controller is electrically connected with the liquid leakage induction line 10 and is used for judging the position of the cooling pipe 101 where liquid leakage occurs according to signals sent by the liquid leakage induction line 10.

Specifically, the liquid-cooled heat dissipation system includes a liquid-cooled plate 100 and a cooling pipe 101. The inside of the liquid-cooling plate 100 is provided with a plurality of channels, which are connected by cooling pipes 101 to form a communicating cooling line. The liquid leakage induction line 10 is wrapped outside the cooling pipe 101, and the liquid leakage induction line 10 is in a net structure. When no liquid leakage occurs in the cooling pipe 101, the current value of the liquid leakage induction line 10 is a normal value; when the liquid leakage occurs in the cooling tube 101, the liquid contacts the liquid leakage sensing line 10, the current value of the liquid leakage sensing line 10 changes, when the current value of the liquid leakage sensing line 10 changes, the liquid leakage sensing line 10 sends a signal to the liquid leakage controller, and the liquid leakage controller can judge the position of the cooling tube 101 where the liquid leakage occurs.

Specifically, the leakage induction wire 10 is composed of a plurality of conductive polymers woven into a mesh structure, and the resistance per unit length of each conductive polymer is a fixed value. When the liquid leakage does not occur in the cooling pipe 101, the current value between the two conductive polymers is a normal value, when the liquid leakage occurs in the cooling pipe 101, the two conductive polymers are in short circuit after the liquid leakage induction line 10 is contacted with the liquid leakage, the measured current value is changed, the liquid leakage controller is related to the length of the resistance according to the ohm law, the position of the liquid leakage induction line 10 contacted with the liquid leakage can be measured through measurement and calculation, and then the liquid leakage position of the cooling pipe 101 is determined.

Further, the liquid leakage induction lines 10 are arranged in a grid structure, and compared with the liquid leakage induction lines which are spirally wound outside the cooling pipe 101, the contact range of the liquid leakage induction lines 10 and liquid leakage in a unit area is enlarged, and therefore liquid leakage detection precision is improved. Further, the sensitivity of the leakage detection can be adjusted by adjusting the size of the grids in the mesh structure, and specifically, if the detection sensitivity of the leakage is to be improved, the size of each grid in the mesh structure can be designed to be a small grid so as to be detected when the leakage occurs; if too high detection sensitivity is not required, the size of each grid in the grid structure can be designed to be a large grid.

According to the liquid leakage detection device of the liquid cooling heat dissipation system, the liquid leakage induction line of the net structure is arranged outside the cooling pipe and electrically connected with the liquid leakage controller, when liquid leakage occurs in the cooling pipe, the liquid leakage induction line sends a signal to the liquid leakage controller, the liquid leakage controller can calculate the position where the liquid leakage induction line is in a short circuit, and then the liquid leakage position of the cooling pipe is determined, the contact range of the liquid leakage induction line and the liquid leakage in a unit area is enlarged through the liquid leakage induction line of the net structure, and therefore the precision of liquid leakage detection is improved.

Further, in the embodiment of the present invention, the detection sensitivity of the leakage sensing line 10 may be adjusted according to a specific use condition. If high detection sensitivity is required, the size of each grid in the net structure formed by the leakage induction lines 10 can be designed to be a small grid, for example, the size of each grid is 0.1mm, at this time, once leakage occurs in the cooling pipe 101, the leakage can be contacted with the net structure, so that leakage is detected, and the leakage controller determines the leakage position of the cooling pipe 101. If a high detection sensitivity is not required, the size of each grid in the mesh structure formed by the leaking liquid induction lines 10 can be designed to be a large grid, for example, the size of each grid is 2mm, and at this time, the leaking liquid is only contacted with the mesh structure when the leaking liquid area of the cooling pipe 101 is equal to or larger than 2mm, so that the leaking liquid is detected. Optionally, in an embodiment of the present invention, a side length of each mesh in the mesh structure is greater than or equal to 0.1mm, and less than or equal to 2mm.

Further, in the embodiment of the present invention, the leakage induction line 10 further includes a water absorption coating layer, and the water absorption coating layer is wrapped outside the conductive polymer.

Specifically, a water absorption coating layer wraps the outside of the conductive polymer, and the water absorption coating layer can absorb a certain amount of leaked liquid, so that the leaked liquid is prevented from falling on a mainboard of the server, and the mainboard is prevented from being short-circuited. Optionally, in the embodiment of the present invention, the water-absorbing coating layer may be made of nylon.

Further, in the embodiment of the present invention, the water-absorbent coating layer is coated with a coloring powder so that the water-absorbent coating layer changes color when it comes into contact with water. Specifically, after the water absorption coating layer is prepared, the color developing powder can be coated on the water absorption coating layer, and after the water absorption coating layer absorbs leaked liquid, the color is displayed. Alternatively, the coloring powder may be copper sulfate powder, which is white when no leakage is encountered and turns blue when leakage is encountered.

Further, the liquid leakage detection device of the liquid cooling heat dissipation system further comprises a plurality of color sensors. A plurality of color sensors set up in liquid cooling system, and color sensor is used for monitoring the colour change of the coating that absorbs water, color sensor and weeping controller electric connection.

Specifically, after the liquid leakage sensing line 10 is failed, when the cooling pipe 101 leaks, the water absorption coating layer absorbs the liquid leakage, the color developing powder on the water absorption coating layer changes color, when the color sensor monitors that the water absorption coating layer changes color, a signal is sent to the liquid leakage controller, and the liquid leakage controller can know that the cooling pipe 101 leaks.

According to the liquid leakage detection device of the liquid cooling heat dissipation system, the water absorption coating layer is arranged, so that when liquid leakage occurs in the cooling pipe, the water absorption coating layer absorbs part of the liquid leakage, the phenomenon that the liquid leakage directly drops on a mainboard of a server to cause the mainboard to be short-circuited and further damage the mainboard is avoided; by smearing the color developing powder on the water absorption coating layer, the occurrence of liquid leakage of the cooling pipe can be judged through the color change on the water absorption coating layer after the liquid leakage induction line fails, so that the liquid leakage detection device has multiple liquid leakage detection modes, and the performance of the liquid leakage detection device is improved.

As shown in fig. 1, in an embodiment of the present invention, the liquid leakage detection apparatus of the liquid-cooled heat dissipation system further includes: a liquid inlet pipe 20 and a liquid storage tank 30. The one end that the feed liquor pipe 20 was used for with the first passageway in the liquid cooling plate 100 is connected, and two liquid reserve tanks 30 set up respectively in the both sides of liquid cooling plate 100, and every liquid reserve tank 30 cover is established in the outside of a plurality of weeping induction lines 10 of liquid cooling plate 100 one side, and liquid reserve tank 30 is used for collecting the weeping.

Particularly, the weeping takes place the back and drops very easily and cause the mainboard short circuit on the server mainboard, and the liquid reserve tank 30 is established to the outside cover of a plurality of weeping response lines 10 in liquid cooling board 100 one side, makes a plurality of weeping response lines 10 that are located liquid cooling board 100 one side all be located a liquid reserve tank 30, and when the weeping took place for cooling tube 101, the weeping all dropped in liquid reserve tank 30 to avoid causing the damage to the server mainboard.

When the cooling medium leaks, the flow of the cooling medium in the liquid cooling plate 100 decreases, which may reduce the cooling capacity of the liquid cooling plate 100, and at this time, a certain amount of cooling medium needs to be supplemented into the liquid cooling plate 100 in time to ensure the cooling capacity of the liquid cooling plate 100. One end of the first channel of the liquid cooling plate 100 is connected with the liquid inlet pipe 20, so that cooling medium can be supplemented in time, and the cooling capacity of the liquid cooling plate 100 is ensured.

Further, as shown in fig. 1, in an embodiment of the present invention, the liquid leakage detection apparatus of the liquid-cooled heat dissipation system further includes: a first valve 21 and a plurality of first level sensors 50. The first valve 21 is disposed in the liquid inlet pipe 20, and the first valve 21 is electrically connected to the liquid leakage controller. A first liquid level sensor 50 is arranged in each liquid storage tank 30, and the first liquid level sensors 50 are electrically connected with the liquid leakage controller.

Specifically, a first level sensor 50 is disposed in each of the liquid tanks 30 for detecting a level of a leakage liquid in the liquid tank 30. When the liquid level of the leaked liquid in the liquid storage tank 30 reaches a preset position, namely the position of the first liquid level sensor 50, the first liquid level sensor 50 sends a signal to the leakage controller, the leakage controller controls the first valve 21 to be opened, and the cooling medium enters the liquid cooling plate 100 through the first pipeline 20 to supplement the cooling medium into the liquid cooling plate 100 so as to ensure the cooling capacity of the liquid cooling plate 100.

Further, as shown in fig. 1, the liquid leakage detection device of the liquid cooling heat dissipation system further includes: a plurality of second liquid level sensors 60, a plurality of effluent conduits 40, and a plurality of second valves 41. All be provided with a second level sensor 60 in every liquid reserve tank 30, second level sensor 60 is located first level sensor 50's top, second level sensor 60 and weeping controller electric connection. Each liquid storage box 30 is further connected with a liquid outlet pipe 40, and a second valve 41 is arranged on the liquid outlet pipe 40.

Specifically, in this embodiment, when the height of the leaked liquid in the liquid storage tank 30 reaches the position of the first liquid level sensor 50, the first liquid level sensor 50 sends a signal to the leakage controller, the leakage controller controls the first valve 21 to open, and the cooling medium enters the liquid cooling plate 100 through the first pipeline 20, so as to ensure the cooling capability of the liquid cooling plate 100. When the height of the leaked liquid in the liquid storage phenomenon 30 reaches the position of the second liquid level sensor 60, it indicates that the amount of the leaked liquid in the liquid storage tank 30 is large, at this time, the second liquid level sensor 60 sends a signal to the leakage controller, and the leakage controller controls the second valve 41 to open so as to empty the cooling medium in the liquid storage tank 30.

According to the liquid leakage detection device of the liquid cooling heat dissipation system, disclosed by the embodiment of the invention, leaked liquid can be collected by arranging the liquid storage tank, the first pipeline and the first liquid level sensor, so that the phenomenon that the leaked liquid falls on a server mainboard to cause damage to the server mainboard is avoided; meanwhile, when the leakage liquid amount reaches a preset value, the first valve can be controlled to be automatically opened, cooling media are automatically supplemented into the liquid cooling plate, the flow of the cooling media in the liquid cooling plate is ensured, and the cooling capacity of the liquid cooling plate is further ensured.

Further, in the embodiment of the present invention, the liquid leakage detection apparatus of the liquid cooling heat dissipation system further includes an alarm, the alarm is electrically connected to the liquid leakage controller, and the alarm is configured to send an alarm when the cooling pipe 101 leaks.

Specifically, when the cooling pipe 101 has a liquid leakage, the liquid leakage sensing line 10 sends a signal to the liquid leakage controller, and the liquid leakage controller controls the alarm to give an alarm to remind the operator of the occurrence of the liquid leakage. Accordingly, when the cooling pipe 101 has a liquid leakage, the color sensor sends a signal to the liquid leakage controller, and the liquid leakage controller controls the alarm to give an alarm. Optionally, in the embodiment of the present invention, the alarm may be a buzzer or an indicator light.

Further, in the embodiment of the invention, the leakage controller is provided with a dial switch, and the dial switch is used for adjusting the response sensitivity of the leakage controller. Specifically, the grid size of the mesh structure of the liquid leakage sensing line 10 is related to the liquid leakage monitoring sensitivity, and when liquid leakage occurs, when the grid size is small, the time for the liquid leakage controller to receive a liquid leakage signal is short, and the reaction sensitivity is high; when the grid size is larger, the time for the leakage controller to receive the leakage signal is longer, and the reaction sensitivity is lower.

In the embodiment of the present invention, a first joint and a second joint are respectively disposed at two ends of each leakage sensing line 10, so as to connect a plurality of leakage sensing lines 10 in series.

Particularly, the cooling tube 101 is used for connecting the channels in the liquid cooling plate 100, the number of the cooling tube 101 is a plurality of, each cooling tube 101 is wrapped by a leakage induction line 10, and a plurality of leakage induction lines 10 are connected through a first joint and a second joint, wherein when the two leakage induction lines 10 are connected, the first joint of one leakage induction line 10 is connected with the second joint of the other leakage induction line 10, so that the plurality of leakage induction lines 10 are connected in series, and the leakage positions of the cooling tubes 101 can be detected through one leakage controller.

In the embodiment of the invention, the liquid leakage detection device further comprises a cloud server, the cloud server is connected with the liquid leakage controller, the liquid leakage controller sends the detected liquid leakage position information to the cloud server, a worker can remotely observe the liquid leakage information through a computer or a mobile phone APP, and the worker can remotely control the first valve 21 to be opened according to the liquid leakage information and the temperature of each heating element in the server shell. Specifically, see that the temperature is higher in the server casing when the staff, and the liquid leakage is less in the liquid reserve tank 30 this moment, has not triggered level sensor yet and sends signal to the liquid leakage controller, and at this moment, the staff can open according to the first valve 21 of actual demand remote control to increase the flow of cooling medium in the liquid cooling plate 100, and then improve the cooling capacity of liquid cooling plate 100.

According to the liquid leakage detection device of the liquid cooling heat dissipation system, provided by the embodiment of the invention, through the arrangement of the cloud server, a worker can carry out remote control without field operation, so that the intelligent control of the liquid leakage detection device is realized, and the convenience in controlling the liquid leakage detection device is improved.

An embodiment of the present invention further provides a liquid cooling heat dissipation system, including: liquid cooling plate 100, cooling tube 101 and weeping detection device. The inside of the liquid-cooling plate 100 is provided with a plurality of channels, which are connected by cooling pipes 101 to form a communicating cooling line. The leakage sensing line 10 of the leakage detection device is wrapped outside the cooling pipe 101, and the leakage sensing line 10 is of a net structure. When no liquid leakage occurs in the cooling pipe 101, the current value of the liquid leakage induction line 10 is a normal value; when the liquid leaks from the cooling pipe 101, the liquid contacts the liquid leakage sensing line 10, the current value of the liquid leakage sensing line 10 changes, when the current value of the liquid leakage sensing line 10 changes, the liquid leakage sensing line 10 sends a signal to the liquid leakage controller, and the liquid leakage controller can judge the position of the cooling pipe 101 where the liquid leakage occurs.

Specifically, the leakage induction wire 10 is composed of a plurality of conductive polymers woven into a mesh structure, and the resistance per unit length of each conductive polymer is a fixed value. When the liquid leakage does not occur in the cooling pipe 101, the current value between the two conductive polymers is a normal value, when the liquid leakage occurs in the cooling pipe 101, after the liquid leakage induction line 10 is in contact with the liquid leakage, the two conductive polymers are in short circuit, the measured current value is changed, the liquid leakage controller is related to the resistance and the length according to the ohm law, the position of the liquid leakage induction line 10 in contact with the liquid leakage can be measured through measurement and calculation, and then the liquid leakage position of the cooling pipe 101 is determined.

The water-absorbing coating layer is wrapped outside the conductive polymer and can absorb a certain amount of leaked liquid, so that the leaked liquid is prevented from falling on a mainboard of the server, and the mainboard is prevented from being short-circuited. Optionally, in the embodiment of the present invention, the water-absorbing coating layer may be made of nylon.

Further, in the embodiment of the present invention, the water-absorbent coating layer is coated with a coloring powder so that the water-absorbent coating layer changes color when it comes into contact with water. Specifically, after the water absorption coating layer is prepared, the color developing powder can be coated on the water absorption coating layer, and after the water absorption coating layer absorbs leaked liquid, the color is displayed. Alternatively, the color developing powder may be copper sulfate powder, which is white when no leakage is encountered and turns blue when leakage is encountered.

After the liquid leakage induction line 10 is failed, when the cooling pipe 101 leaks, the water absorption coating layer absorbs liquid leakage, the color developing powder on the water absorption coating layer changes color, when the color sensor monitors that the water absorption coating layer changes color, a signal is sent to the liquid leakage controller, and the liquid leakage controller can know that the cooling pipe 101 leaks.

The weeping takes place the back and drops and very easily causes the mainboard short circuit on the server mainboard, and the liquid reserve tank 30 is established to the outside cover of a plurality of weeping response lines 10 in liquid cooling board 100 one side, makes a plurality of weeping response lines 10 that are located liquid cooling board 100 one side all be located a liquid reserve tank 30, and when the weeping took place for the cooling tube 101, the weeping all dropped in liquid reserve tank 30 to avoid causing the damage to the server mainboard.

A first level sensor 50 is provided in each reservoir 30 for detecting the level of leakage in the reservoir 30. When the liquid level of the leaked liquid in the liquid storage tank 30 reaches the preset position, the first liquid level sensor 50 sends a signal to the liquid leakage controller, the liquid leakage controller controls the first valve 21 to be opened, and the cooling medium enters the liquid cooling plate 100 through the first pipeline 20 to supplement the cooling medium into the liquid cooling plate 100, so that the cooling capacity of the liquid cooling plate 100 is ensured.

Further, a second liquid level sensor 60 is further arranged in each liquid storage tank 30, the second liquid level sensor 60 is located above the first liquid level sensor 50, each liquid storage tank 30 is further connected with a liquid outlet pipe 40, and a second valve 41 is arranged on the liquid outlet pipe 40. When the height of the leaked liquid in the liquid storage tank 30 reaches the position of the first liquid level sensor 50, the first liquid level sensor 50 sends a signal to the leakage controller, the leakage controller controls the first valve 21 to be opened, and the cooling medium enters the liquid cooling plate 100 through the first pipeline 20, so that the cooling capacity of the liquid cooling plate 100 is ensured. When the height of the leaked liquid in the liquid storage phenomenon 30 reaches the position of the second liquid level sensor 60, it indicates that the amount of the leaked liquid in the liquid storage tank 30 is large, at this time, the second liquid level sensor 60 sends a signal to the leakage controller, and the leakage controller controls the second valve 41 to open so as to empty the cooling medium in the liquid storage tank 30.

According to the liquid cooling heat dissipation system provided by the embodiment of the invention, the liquid leakage detection device is arranged, the liquid leakage induction line is electrically connected with the liquid leakage controller, when the liquid leakage occurs in the cooling pipe, the liquid leakage induction line sends a signal to the liquid leakage controller, the liquid leakage controller can calculate the position where the liquid leakage induction line is in a short circuit state, the liquid leakage position of the cooling pipe is further determined, the contact range of the liquid leakage induction line and the liquid leakage in a unit area is enlarged through the liquid leakage induction line with the net-shaped structure, and the liquid leakage detection precision is improved.

The embodiment of the invention also provides a server which comprises a shell, a plurality of heating elements and a liquid cooling heat dissipation system. The liquid cooling heat dissipation system and the plurality of heating elements are arranged in the shell, and the liquid cooling heat dissipation system is located below the plurality of heating elements.

Specifically, be provided with a plurality of heating elements in the casing of server, like CPU mainboard, intelligent network card etc. the upper surface of liquid cooling board 100 of liquid cooling heat dissipation system and the lower surface contact of heating element, be provided with a plurality of passageways in the liquid cooling board 100, a plurality of passageways connect into the cooling pipeline through a plurality of cooling tubes 101, after injecting coolant into the passageway, coolant and heating element take place the heat exchange, and then cool off heating element.

Further, when the cooling pipe 101 is damaged, the cooling medium leaks, the leaked cooling medium contacts the liquid leakage induction line 10 in a net structure, and when liquid leakage does not occur in the cooling pipe 101, the current value of the liquid leakage induction line 10 is a normal value; when the liquid leakage occurs in the cooling tube 101, the liquid contacts the liquid leakage sensing line 10, the current value of the liquid leakage sensing line 10 changes, when the current value of the liquid leakage sensing line 10 changes, the liquid leakage sensing line 10 sends a signal to the liquid leakage controller, and the liquid leakage controller can judge the position of the cooling tube 101 where the liquid leakage occurs.

Further, in the embodiment of the present invention, the detection sensitivity of the liquid leakage sensing line 10 may be adjusted according to a specific use condition. If high detection sensitivity is required, the size of each grid in the net structure formed by the liquid leakage induction lines 10 can be designed to be a small grid, for example, the size of each grid is 0.1mm, at this time, once liquid leakage occurs in the cooling pipe 101, the liquid leakage can be contacted with the net structure, so that the liquid leakage is detected, and then the position where the liquid leakage occurs in the cooling pipe 101 is determined by the liquid leakage controller. If a high detection sensitivity is not required, the size of each grid in the mesh structure formed by the leaking liquid induction lines 10 can be designed to be a large grid, for example, the size of each grid is 2mm, and at this time, the leaking liquid is only contacted with the mesh structure when the leaking liquid area of the cooling pipe 101 is equal to or larger than 2mm, so that the leaking liquid is detected. Optionally, in an embodiment of the present invention, a side length of each mesh in the mesh structure is greater than or equal to 0.1mm, and less than or equal to 2mm.

The water absorption coating layer is wrapped outside the conductive polymer and can absorb a certain amount of leakage liquid, so that the leakage liquid is prevented from falling on the mainboard of the server, and the mainboard is prevented from being short-circuited. Optionally, in the embodiment of the present invention, the water-absorbing coating layer may be made of nylon.

Further, in the embodiment of the present invention, the water-absorbent coating layer is coated with a coloring powder so that the water-absorbent coating layer changes color when it is exposed to water. Specifically, after the water absorption coating layer is prepared, the color developing powder can be coated on the water absorption coating layer, and after the water absorption coating layer absorbs leaked liquid, the color is displayed. Alternatively, the color developing powder may be copper sulfate powder, which is white when no leakage is encountered and turns blue when leakage is encountered.

After the liquid leakage induction line 10 is invalid, when the cooling tube 101 leaks, the water absorption coating layer absorbs the liquid leakage, the color developing powder on the water absorption coating layer changes color, the color sensor sends a signal to the liquid leakage controller when monitoring that the water absorption coating layer changes color, and the liquid leakage controller can know that the cooling tube 101 leaks.

Further, still be provided with second level sensor 60 in every liquid reserve tank 30, second level sensor 60 is located first level sensor 50's top, and every liquid reserve tank 30 still is connected with drain pipe 40, is provided with second valve 41 on the drain pipe 40. When the height of the leaked liquid in the liquid storage tank 30 reaches the position of the first liquid level sensor 50, the first liquid level sensor 50 sends a signal to the leakage controller, the leakage controller controls the first valve 21 to be opened, and the cooling medium enters the liquid cooling plate 100 through the first pipeline 20, so that the cooling capacity of the liquid cooling plate 100 is ensured. When the height of the leaked liquid in the liquid storage phenomenon 30 reaches the position of the second liquid level sensor 60, it indicates that the amount of the leaked liquid in the liquid storage tank 30 is large, at this time, the second liquid level sensor 60 sends a signal to the leakage controller, and the leakage controller controls the second valve 41 to open so as to empty the cooling medium in the liquid storage tank 30.

According to the server provided by the embodiment of the invention, the liquid cooling heat dissipation system is arranged, so that the heating element in the server shell can be cooled, meanwhile, the phenomenon that the cooling medium falls on the server mainboard to damage the mainboard is avoided, and the service life of the server is prolonged.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a liquid cooling system's weeping detection device which characterized in that includes:

the liquid leakage induction line is woven into a net structure and wraps the outside of a cooling pipe of the liquid cooling heat dissipation system, and comprises a plurality of conductive polymers which are woven into the net structure; under the condition that the cooling pipe does not leak liquid, the current value between the two conductive polymers is a normal value; under the condition that the cooling pipe leaks, the current value between the two conductive polymers changes;

and the leakage controller is electrically connected with the leakage induction line and used for judging the position of the cooling pipe where leakage occurs according to the signal sent by the leakage induction line.

2. The apparatus of claim 1, wherein the side length of each mesh in the mesh structure is greater than or equal to 0.1mm and less than or equal to 2mm.

3. The liquid-cooled heat dissipation system leakage detection device of claim 1, wherein the leakage sensing line further comprises a water-absorbing coating layer, and the water-absorbing coating layer is wrapped outside the conductive polymer.

4. The liquid-cooled heat dissipation system leakage detection device as claimed in claim 3, wherein the water-absorbing coating layer is coated with a color developing powder so that the water-absorbing coating layer changes color after encountering water.

5. The liquid leakage detection device of the liquid cooling heat dissipation system of claim 4, further comprising a plurality of color sensors, wherein the plurality of color sensors are disposed on the liquid cooling heat dissipation system, the color sensors are used for monitoring color changes of the water absorption coating layer, and the color sensors are electrically connected to the leakage controller.

6. The apparatus of claim 1, further comprising:

the liquid inlet pipe is used for being connected with one end of the first channel in the liquid cooling plate;

a pair of liquid reserve tank, two the liquid reserve tank set up respectively in the both sides of liquid cooling board, every the liquid reserve tank cover is established a plurality of liquid cooling board one side the outside of weeping response line, the liquid reserve tank is used for collecting the weeping.

7. The apparatus of claim 6, further comprising:

the first valve is arranged on the liquid inlet pipe and is electrically connected with the liquid leakage controller;

a plurality of first level sensor, every all be provided with one in the liquid reserve tank first level sensor, first level sensor with hourglass liquid controller electric connection.

8. The apparatus of claim 7, further comprising:

the liquid level controller comprises a plurality of liquid level sensors, a liquid level controller and a liquid level controller, wherein the liquid level controller is electrically connected with the liquid level sensors;

and the liquid storage box is connected with one liquid outlet pipe, and each liquid outlet pipe is provided with a second valve.

9. A liquid cooling heat dissipation system comprises a liquid cooling plate, a cooling pipe and the leakage detection device as claimed in any one of claims 1 to 9, wherein a plurality of channels are formed in the liquid cooling plate and connected through the cooling pipe to form a communicated cooling pipeline, and a leakage induction line of the leakage detection device is wrapped outside the cooling pipe in a net structure.

10. A server, comprising a housing, a plurality of heat generating components, and the liquid-cooled heat dissipating system of claim 9, wherein the liquid-cooled heat dissipating system and the plurality of heat generating components are disposed in the housing, and wherein the liquid-cooled heat dissipating system is disposed under the plurality of heat generating components.