Liquid leakage detection line, liquid leakage detection system and method

Abstract

The invention discloses a liquid leakage detection line, a liquid leakage detection system and a liquid leakage detection method, and relates to the technical field of detection. The method comprises the following steps: configuring a first connector and a second connector in the liquid leakage detection line to be respectively communicated with an external power supply system so as to realize power-on connection of an induction line in the liquid leakage detection line; an induction line is arranged to be in contact with a to-be-detected area on the board card; in response to liquid leakage of the to-be-detected area, the leaked liquid sequentially permeates into the second insulating layer, the metal woven mesh layer, the first insulating layer and the metal core body in the induction line, so that the induction line detects the output voltage of the to-be-detected area; comparing the output voltage of the to-be-detected area with a preset voltage, when the output voltage is smaller than the preset voltage, obtaining an output result that the high level is changed into the low level, and confirming that the to-be-detected area leaks liquid. According to the liquid leakage detection line, through the structural design that the ring layer structure is combined with the metal woven mesh in the liquid leakage detection line, electromagnetic interference caused by a board card is avoided, and accurate detection of the liquid leakage condition is achieved.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a liquid leakage detection line, a liquid leakage detection system and a method. Background Art

[0002] During the operation of the server, a large amount of heat is generated due to energy conversion caused by the need for computing and processing. In order to ensure the stability of the internal temperature of the server and prevent overheating from causing hardware damage or performance degradation, liquid cooling radiators are usually used to dissipate heat from the server. Liquid cooling technology uses the high specific heat capacity and good thermal conductivity of liquid to more efficiently absorb and carry away the heat generated by the server, achieving more precise temperature control.

[0003] In some related technologies, there is a risk of leakage in actual applications of liquid cooling radiators. Once leakage occurs, due to the conductivity of the coolant, it may cause signal level errors on the motherboard and lead to downtime; serious leakage may even cause short circuits, burn the server, and bring greater economic losses; leakage of liquid cooling radiators will not only damage server performance, affect the normal operation of server services, and damage the performance and reliability of the system, but may also cause pollution to the surrounding environment and safety hazards. Summary of the invention

[0004] In order to solve at least one of the problems mentioned in the above background technology, the present application provides a leakage detection line, a leakage detection system and a method. By setting a ring structure combined with a metal woven mesh structure in the leakage detection line, the electromagnetic interference caused by the board is avoided, and the accurate detection of leakage is achieved. In addition, by connecting multiple grounding points at specific positions, the leakage detection line can be well grounded, further effectively shielding external electromagnetic interference and ensuring the normal operation of the leakage detection function.

[0005] The specific technical solutions provided by the embodiments of this application are as follows:

[0006] In a first aspect, a liquid leakage detection line is provided, which is applied to a board and comprises: a sensing line, a first row of wires and a second row of wires connected at two ends of the sensing line, wherein ends of the first row of wires and the second row of wires away from the sensing line are respectively connected to a first connector and a second connector;

[0007] The sensing line includes a metal core body, a first insulating layer, a metal braided mesh layer, and a second insulating layer arranged in sequence along a direction away from the metal core body. When the first connector and the second connector are electrically connected to an external power supply system, the leakage result of the board card is detected through the sensing line.

[0008] In a specific embodiment, the first insulating layer and the second insulating layer are configured as insulating woven mesh layers, and the mesh number of the insulating woven mesh layers is 75 to 250 meshes.

[0009] In a specific embodiment, the mesh number of the metal woven mesh layer is 125-150 meshes.

[0010] In a specific embodiment, the two ends of the sensing line are respectively connected to the first heat shrink tube and the second heat shrink tube, the other end of the first heat shrink tube is connected to the first lead wire, the other end of the first lead wire is connected to the first row of wires, the other end of the second heat shrink tube is connected to the second lead wire, and the other end of the first lead wire is connected to the second row of wires.

[0011] In a specific embodiment, a first line marker is provided on the first lead-out line, and a second line marker is provided on the second lead-out line.

[0012] In a specific embodiment, a grounding wire is connected to the middle of the induction line, and the grounding wire passes through the second insulation layer and is connected to the metal braided mesh layer. The other end of the grounding wire is connected to the connector of the board, and the connector of the board is connected to the grounding point on the board.

[0013] In a specific embodiment, the first connector and the second connector are grounded when connected to an external power supply system.

[0014] In a specific embodiment, the first cable includes a first wire and a second wire, the other ends of which are connected to the first connector, and the second cable includes a third wire and a fourth wire, the other ends of which are connected to the second connector.

[0015] In a second aspect, a liquid leakage detection system is provided, the system comprising the liquid leakage detection line as described above, the liquid leakage detection line comprising a sensing line, a first connector and a second connector, and applied to a board, the system comprising:

[0016] An external power supply system is connected to the external power supply system through the first connector and the second connector to realize power supply of the induction line;

[0017] A voltage comparison component is connected to the liquid leakage detection line, and is used to receive the output voltage of the to-be-detected area of ​​the board detected by the sensing line, and compare the output level change result with the preset voltage;

[0018] The controller outputs the leakage result according to the level change result sent by the voltage comparison component.

[0019] In a third aspect, a liquid leakage detection method is provided, the method is applied to the liquid leakage detection system as described above or the method is based on the liquid leakage detection line as described above and applied to a board, the method comprising:

[0020] Step A, configuring the first connector and the second connector in the liquid leakage detection line to be connected to the external power supply system respectively, so as to realize the electrical connection of the sensing line in the liquid leakage detection line;

[0021] Step B, setting the sensing line to contact the area to be detected on the board;

[0022] Step C, in response to liquid leakage in the area to be detected, the leaked liquid sequentially penetrates into the second insulating layer, the metal braided mesh layer, the first insulating layer and the metal core body in the sensing wire, so that the sensing wire detects the output voltage of the area to be detected;

[0023] Step D: compare the output voltage of the area to be detected with a preset voltage. When the output voltage is less than the preset voltage, a high level output is changed to a low level output result, and it is confirmed that liquid leakage occurs in the area to be detected.

[0024] The embodiments of the present application have the following beneficial effects:

[0025] 1. The leakage detection line provided in the embodiment of the present application realizes the electrical connection of the leakage detection line through the first connector and the second connector before the leakage detection is performed on the area to be detected, so that the middle sensing line remains energized. When leakage occurs in the area to be detected on the board, the leakage can penetrate into the second insulating layer, the metal braided mesh layer, the first insulating layer and the metal core body in the sensing line in sequence. Due to the conductivity of the leakage, the voltage of the metal core body will be lowered at this time, so as to obtain the leakage situation of the area to be detected through the sensing line. In the present application, the electromagnetic interference caused by the board is avoided by combining the coil structure with the metal braided mesh structure in the leakage detection line, so as to realize accurate detection of the leakage situation.

[0026] 2. The leakage detection system in this embodiment is connected to the first connector and the second connector through an external power supply system to ensure that the leakage detection line is energized when performing leakage detection. The voltage of the area to be detected is detected through the sensing line. When a leakage occurs, the voltage of the metal core body detected by the sensing line drops below the reference voltage. At this time, the output of the voltage comparison component will change from a high level to a low level, thereby confirming that a leakage has occurred in the detection area. At this time, the controller obtains the leakage information, sends an alarm to the server management platform, and records the leakage in the log. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of a liquid leakage detection line according to the present application is shown;

[0029] Figure 2 A schematic cross-sectional view of the sensing line according to the first embodiment of the present application is shown;

[0030] Figure 3 A side schematic diagram of the sensing line according to the first embodiment of the present application is shown;

[0031] Figure 4 A cross-sectional schematic diagram of the sensing line according to the second embodiment of the present application is shown;

[0032] Figure 5 A side schematic diagram of the sensing line according to the second embodiment of the present application is shown;

[0033] Figure 6 A schematic diagram of a liquid leakage detection method according to the present application is shown;

[0034] In the figure, 1, first connector; 2, first row of wires; 201, first conductor; 202, second conductor; 3, induction wire; 301, metal core body; 302, first insulation layer; 303, metal braided mesh layer; 304, second insulation layer; 4, second row of wires; 401, third conductor; 402, fourth conductor; 5, second connector; 6, first heat shrink tube; 7, second heat shrink tube; 8, first lead wire; 9, second lead wire; 10, first line mark; 11, second line mark; 12, first connecting wire; 1201, first wire core; 1202, first insulation braided mesh layer; 13, second connecting wire; 1301, second wire core; 1302, second insulation braided mesh layer; 14, third insulation braided mesh layer. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0038] The “upper” and “lower” involved in the embodiments of this application are all Figure 1 and Figure 2 The orientation shown in is the reference.

[0039] Embodiment 1

[0040] A liquid leakage detection line, such as Figure 1 As shown, it is applied to the board in the server, and the server using liquid cooling usually has a cold plate and a water cooling pipe passing through or fixed above the board to achieve heat dissipation of the board and other heat-generating components in the server, wherein a cold plate radiator is installed on large-packaged and high-heat-generating chips such as CPU and GPU, that is, the cold plate directly contacts the chip package surface through a heat-conducting medium, quickly transfers the heat to the cold plate, and then the heat is taken away to a heat exchange device such as a cooling tower through the coolant flowing through the cold plate. The coolant of a server circulates through two pipes, one inlet and one outlet. Generally, water is used as the coolant in the cold pipe. In the following text, water is used to refer to the coolant, and then each cold plate is connected through multiple pipes inside the server. In order to achieve accurate detection when leakage occurs in water cooling or water cooling pipes, the leakage detection line is set on the board or close to the board device.

[0041] Specifically, the leakage detection line includes: a first connector 1, a first cable 2, a sensing line 3, a second cable 4 and a second connector 5 arranged in sequence along the end, wherein the sensing line 3 is located in the middle of the leakage detection line, and the first connector 1 and the second connector 5 are respectively located at both ends, so as to realize connection with the socket in the external power supply system through the first connector 1 and the second connector 5, and then realize the electrical connection of the leakage detection line; the first cable 2 and the second cable 4 are respectively connected to the two ends of the sensing line 3, and the ends of the first cable 2 and the second cable 4 away from the sensing line 3 are respectively connected to the first connector 1 and the second connector 5. Figure 2 and Figure 3As shown, the sensing line 3 includes a metal core body 301, a first insulating layer 302, a metal braided mesh layer 303 and a second insulating layer 304, and the first insulating layer 302, the metal braided mesh layer 303 and the second insulating layer 304 are centered on the central axis of the metal core body 301 and are arranged in sequence along the direction away from the central axis of the metal core body 301 to form a ring structure composed of the metal core body 301, the first insulating layer 302, the metal braided mesh layer 303 and the second insulating layer 304. When the first connector 1 and the second connector 5 are electrically connected to the external power supply system, the leakage result of the board is detected through the sensing line 3.

[0042] Since the leakage detection line is installed at a position close to the board, various devices such as power inductors, switch MOS tubes and CPUs are installed on the surface of the board. When the server system is started or works under high load, these devices will release strong electromagnetic interference in the area near the board. In order to reduce the influence of the above electromagnetic interference on the leakage detection result, the layer structure in the sensing line 3 in this embodiment is set to a precise mesh structure, wherein the mesh number of the metal woven mesh layer 303 is 125-150 meshes, the first insulating layer 302 and the second insulating layer 304 are set to insulating woven mesh layers, and the mesh number of the insulating woven mesh layer is 75-250 meshes. The outside of the above insulating woven mesh is wrapped by a circle of tight metal woven mesh, and the metal woven mesh is fine enough to achieve the effect of shielding external electromagnetic interference, and the layer of the above mesh structure allows the leakage to penetrate, and the leaking liquid can pass through the above metal woven mesh and the insulating woven mesh, thereby avoiding the electromagnetic interference caused by the board and realizing accurate detection of the leakage.

[0043] Furthermore, the leakage detection line in this embodiment also includes a first heat shrink tube 6, a second heat shrink tube 7, a first lead wire 8 and a second lead wire 9 connected at both ends of the sensing line 3, wherein the end of the first heat shrink tube 6 away from the sensing line 3 is connected to the first lead wire 8, the other end of the first lead wire 8 is connected to the first row of wires 2, the end of the second heat shrink tube 7 away from the sensing line 3 is connected to the second lead wire 9, and the other end of the second lead wire 9 is connected to the second row of wires 4.

[0044] In order to realize the electrical connection of the sensing line 3 through the first connector 1 and the second connector 5, the sensing line 3 is connected to the connector at the end through the first row of cables 2 and the second row of cables 4. Specifically, the first row of cables 2 includes a first wire 201 and a second wire 202, wherein the first wire 201 and the second wire 202 are respectively connected to the metal core body 301 and the metal braided mesh layer 303, and the second row of cables 4 includes a third wire 401 and a fourth wire 402, and the third wire 401 and the fourth wire 402 are respectively connected to the metal core body 301 and the metal braided mesh layer 303, so as to ensure that the electrical connection is realized through the end connector.

[0045] It should be noted that, in this embodiment, the first lead wire 8 and the second lead wire 9 are also provided with a first line marker 10 and a second line marker 11 respectively, wherein the first line marker 10 and the second line marker 11 are used to mark the model or connection position of the line.

[0046] In order to further ensure that the leakage detection line in this embodiment achieves a good electromagnetic shielding effect, it is necessary to set at least three grounding points for the induction line 3 in the leakage detection line, specifically including the first connector 1 and the second connector 5 are connected to the external power supply system through the connection with the board to achieve grounding connection; at the same time, a grounding wire is connected to the middle of the induction line 3, and the grounding wire passes through the second insulation layer 304 and is connected to the metal braided mesh layer 303, wherein the connection between the grounding wire and the metal braided mesh layer 303 is achieved by adding a welding point, and the other end of the grounding wire is connected to the connector of the board, and the connector of the board is connected to the grounding point on the board, thereby connecting multiple grounding points at specific positions to achieve good grounding of the leakage detection line, further effectively shielding external electromagnetic interference, and ensuring the normal operation of the leakage detection function.

[0047] In a specific embodiment, the cold plate of the CPU on the board in this embodiment is connected to the liquid cooling tube through a cold head, and the induction line 3 of the leakage detection line is extended and placed above the CPU. By setting the second insulation layer 304 in the induction line 3 to be peeled off and an opening is set at the position of the CPU cold head, and the metal woven mesh layer 303 inside the second insulation layer 304 is exposed, and the metal woven mesh layer 303 is tightly fitted to the CPU cold head by using conductive cloth, wherein the conductive cloth has conductivity, one side of which is tightly fitted to the metal woven mesh of the induction line 3, and the other side is tightly fitted to the CPU cold head. At the same time, the CPU cold head and the CPU cold plate are both made of metal and are interconnected with the grounding terminal on the board, thereby realizing an additional grounding point for the leakage detection line.

[0048] Specific implementation process: install the leakage detection line in this embodiment at the corresponding position on the board, and make the sensing line 3 located in the area to be detected on the board, adjust the first connector 1 and the second connector 5 to connect with the external power supply system to realize the electrical connection of the leakage detection line, and configure the other end of the grounding wire to be connected to the connector of the board, and the connector of the board is connected to the grounding point on the board. After completing the above configuration, the area to be detected is leaked through the sensing line 3; due to the conductivity of the leakage, the voltage of the metal core body 301 will be lowered at this time, so as to obtain the leakage situation of the area to be detected through the sensing line 3. In this application, the electromagnetic interference caused by the board is avoided by combining the ring structure with the metal braided mesh in the leakage detection line, so as to realize accurate detection of the leakage situation.

[0049] Embodiment 2

[0050] Corresponding to the above embodiment, this embodiment provides a leakage detection line, such as Figure 4 and Figure 5 As shown, the difference between this embodiment and the first embodiment is that the structure of the induction line 3 is different. The induction line 3 in this embodiment includes a first connecting line 12 and a second connecting line 13, wherein the first connecting line 12 includes a first wire core 1201 and a first insulating braided mesh layer 1202, and the second connecting line 13 includes a second wire core 1301 and a second insulating braided mesh layer 1302. The first connecting line 12 and the second connecting line 13 are insulated and arranged closely, and a third insulating braided mesh layer 14 is arranged outside the first connecting line 12 and the second connecting line 13. Exemplarily, when a water-cooling pipe leaks, the cooling water in the pipe will flow out to the bottom of the pipe, soaking the first connecting line 12 and the second connecting line 13. Since water is conductive, it will cause a short circuit between the two wires in the leakage detection line. One of the wires of the leakage line is pulled to a high level, generally a 3.3V voltage, and the other is grounded, so that the voltage on the high-level line will be pulled down to close to 0V. The two ends of the leakage line are connected to the board through connectors, and one end of the high-level line output is connected to the voltage comparator. After comparison with the reference voltage value, a high level or a low level is output. The reference voltage is generally set between 1V and 2V. When the voltage on the high-level line is higher than the reference voltage, a high level is output, otherwise a low level is output. When a leakage occurs, the voltage of the high-level line is lower than the reference voltage of the comparator, and the comparator will output a low level. The output of the voltage comparator is connected to the BMC. As the core of the server management system, the BMC will record the leakage information in the log and issue a leakage alarm.

[0051] Embodiment 3

[0052] Corresponding to the above embodiment, the present application provides a liquid leakage detection system, the system includes the liquid leakage detection line as described above, the liquid leakage detection line includes a sensing line 3, a first connector 1 and a second connector 5, applied to a board, the system includes:

[0053] An external power supply system is connected to the external power supply system through the first connector 1 and the second connector 5 to realize the electrical connection of the induction line 3;

[0054] A voltage comparison component is connected to the liquid leakage detection line, and is used to receive the output voltage of the to-be-detected area of ​​the board detected by the sensing line 3, and compare the output level change result with the preset voltage;

[0055] The controller outputs the leakage result according to the level change result sent by the voltage comparison component.

[0056] The controller in this embodiment is selected as a baseboard management controller, and the voltage comparison component is selected as a voltage comparator. The GPIO pin of the baseboard management controller receives the output result of the voltage comparator. When leakage is detected in the area to be detected, since the coolant is conductive, it will soak the leakage detection line and cause a short circuit between the metal core body 301 and the metal woven mesh layer 303, thereby lowering the voltage of the metal core body 301. When the voltage of the metal core body 301 drops below the reference voltage, the output of the voltage comparator changes from a high level to a low level. At this time, the baseboard management controller receives the output result of the voltage comparator and obtains the information that the level has dropped. Based on this, it sends an alarm to the server platform, notifies the operation and maintenance personnel, and records the log information.

[0057] In a specific embodiment, the leakage detection line in this embodiment includes: a sensing line 3, a first row of cables 2 and a second row of cables 4 connected at both ends of the sensing line 3, the first row of cables 2 and the second row of cables 4 being connected to a first connector 1 and a second connector 5 at one end away from the sensing line 3, respectively; the sensing line 3 includes a metal core body 301, a first insulating layer 302, a metal braided mesh layer 303 and a second insulating layer 304 are sequentially arranged in a direction away from the metal core body 301, and when the first connector 1 and the second connector 5 are electrically connected to an external power supply system, the leakage result of the board is detected through the sensing line 3.

[0058] In a specific embodiment, the first insulating layer 302 and the second insulating layer 304 are configured as insulating woven mesh layers, and the mesh number of the insulating woven mesh layers is 75-250 meshes.

[0059] In a specific embodiment, the mesh number of the metal woven mesh layer 303 is 125-150 meshes.

[0060] In a specific embodiment, the two ends of the sensing line 3 are respectively connected to the first heat shrink tube 6 and the second heat shrink tube 7, the other end of the first heat shrink tube 6 is connected to the first lead wire 8, the other end of the first lead wire 8 is connected to the first row of wires 2, the other end of the second heat shrink tube 7 is connected to the second lead wire 9, and the other end of the first lead wire 8 is connected to the second row of wires 4.

[0061] In a specific embodiment, a first line marker 10 is provided on the first lead line 8 , and a second line marker 11 is provided on the second lead line 9 .

[0062] In a specific embodiment, a grounding wire is connected to the middle of the induction line 3, and the grounding wire passes through the second insulating layer 304 and is connected to the metal braided mesh layer 303. The other end of the grounding wire is connected to the connector of the board, and the connector of the board is connected to the grounding point on the board.

[0063] In a specific embodiment, the first connector 1 and the second connector 5 are grounded when connected to an external power supply system.

[0064] In a specific embodiment, the first cable 2 includes a first wire 201 and a second wire 202, the other ends of which are connected to the first connector 1, and the second cable 4 includes a third wire 401 and a fourth wire 402, the other ends of which are connected to the second connector 5.

[0065] Specific implementation process: install the leakage detection line in this embodiment at the corresponding position on the board, and make the sensing line 3 located in the area to be detected on the board, adjust the first connector 1 and the second connector 5 to connect with the external power supply system to realize the electrical connection of the leakage detection line, and configure the other end of the grounding wire to be connected to the connector of the board, and the connector of the board is connected to the grounding point on the board. After completing the above configuration, the area to be detected is leaked through the sensing line 3. At this time, the reference voltage value is pre-set in the voltage comparator; and the voltage comparator is set to communicate with the baseboard management controller; in response to starting the leakage detection of the area to be detected, when leakage occurs, the metal core body 301 and the metal braided mesh layer 303 will be short-circuited after the leakage detection line is soaked, and the output of the voltage comparator will change from a high level to a low level. At this time, the baseboard management controller receives the output result of the voltage comparator and confirms that leakage occurs.

[0066] Embodiment 4

[0067] Corresponding to the above embodiment, this embodiment provides a leakage detection method, such as Figure 6 As shown, the method is applied to the liquid leakage detection system as described above or the method is based on the liquid leakage detection line as described above and applied to a board, and the method includes:

[0068] Step 101, configuring the first connector 1 and the second connector 5 in the liquid leakage detection line to be connected to the external power supply system respectively, so as to realize the electrical connection of the sensing line 3 in the liquid leakage detection line;

[0069] Step 102, setting the sensing line 3 to contact the area to be detected on the board;

[0070] Step 103, in response to liquid leakage in the area to be detected, the leaked liquid sequentially penetrates into the second insulating layer 304, the metal braided mesh layer 303, the first insulating layer 302 and the metal core body 301 in the sensing line 3, so that the sensing line 3 detects the output voltage of the area to be detected;

[0071] Step 104 , comparing the output voltage of the area to be detected with a preset voltage, when the output voltage is less than the preset voltage, obtaining a high level to low level output result, and confirming that leakage occurs in the area to be detected.

[0072] Step 105: When the output voltage is greater than or equal to the preset voltage, a high level is output, and it is confirmed that no leakage occurs in the area to be detected.

[0073] In a specific embodiment, the leakage detection line includes: a sensing line 3, a first row of cables 2 and a second row of cables 4 connected at both ends of the sensing line 3, the first row of cables 2 and the second row of cables 4 being connected to a first connector 1 and a second connector 5 at one end away from the sensing line 3, respectively; the sensing line 3 includes a metal core body 301, a first insulating layer 302, a metal braided mesh layer 303 and a second insulating layer 304 being sequentially arranged in a direction away from the metal core body 301, and when the first connector 1 and the second connector 5 are electrically connected to an external power supply system, the leakage result of the board is detected through the sensing line 3.

[0074] In a specific embodiment, the first insulating layer 302 and the second insulating layer 304 are configured as insulating woven mesh layers, and the mesh number of the insulating woven mesh layers is 75-250 meshes.

[0075] In a specific embodiment, the mesh number of the metal woven mesh layer 303 is 125-150 meshes.

[0076] In a specific embodiment, the two ends of the sensing line 3 are respectively connected to the first heat shrink tube 6 and the second heat shrink tube 7, the other end of the first heat shrink tube 6 is connected to the first lead wire 8, the other end of the first lead wire 8 is connected to the first row of wires 2, the other end of the second heat shrink tube 7 is connected to the second lead wire 9, and the other end of the first lead wire 8 is connected to the second row of wires 4.

[0077] In a specific embodiment, a first line marker 10 is provided on the first lead line 8 , and a second line marker 11 is provided on the second lead line 9 .

[0078] In a specific embodiment, a grounding wire is connected to the middle of the induction line 3, and the grounding wire passes through the second insulating layer 304 and is connected to the metal braided mesh layer 303. The other end of the grounding wire is connected to the connector of the board, and the connector of the board is connected to the grounding point on the board.

[0079] In a specific embodiment, the first connector 1 and the second connector 5 are grounded when connected to an external power supply system.

[0080] In a specific embodiment, the first cable 2 includes a first wire 201 and a second wire 202, the other ends of which are connected to the first connector 1, and the second cable 4 includes a third wire 401 and a fourth wire 402, the other ends of which are connected to the second connector 5.

[0081] Through the above settings, when leakage occurs, the leakage can be accurately detected. The liquid soaks the detection line to short-circuit the metal wire core and the metal braided mesh, and the output level of the voltage comparator changes. The baseboard management controller can promptly obtain the information that the level has become low; the baseboard management controller sends an alarm to the server management platform based on this information, notifies the operation and maintenance personnel, and records the log information, which helps the operation and maintenance personnel to take quick measures to reduce the damage to the server caused by the leakage.

[0082] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A liquid leakage detection line, characterized in that: Applied to a board, comprising: a sensing line (3), a first row of cables (2) and a second row of cables (4) connected at both ends of the sensing line (3), wherein ends of the first row of cables (2) and the second row of cables (4) away from the sensing line (3) are respectively connected to a first connector (1) and a second connector (5); The sensing line (3) comprises a metal core body (301), a first insulating layer (302), a metal braided mesh layer (303) and a second insulating layer (304) which are sequentially arranged in a direction away from the metal core body (301); when the first connector (1) and the second connector (5) are electrically connected to an external power supply system, the leakage result of the board is detected through the sensing line (3).

2. The liquid leakage detection line according to claim 1, characterized in that: The first insulating layer (302) and the second insulating layer (304) are configured as insulating braided mesh layers, and the mesh number of the insulating braided mesh layers is 75 to 250 meshes.

3. The liquid leakage detection line according to claim 1 or 2, characterized in that: The mesh number of the metal woven mesh layer (303) is 125 to 150 meshes.

4. The liquid leakage detection line according to claim 1 or 2, characterized in that: The two ends of the induction line (3) are respectively connected to a first heat shrink tube (6) and a second heat shrink tube (7); the other end of the first heat shrink tube (6) is connected to a first lead wire (8); the other end of the first lead wire (8) is connected to the first row of wires (2); the other end of the second heat shrink tube (7) is connected to a second lead wire (9); the other end of the first lead wire (8) is connected to the second row of wires (4).

5. The liquid leakage detection line according to claim 4, characterized in that: The first lead wire (8) is provided with a first wire marker (10), and the second lead wire (9) is provided with a second wire marker (11).

6. The liquid leakage detection line according to claim 1 or 2, characterized in that: A grounding wire is connected to the middle of the induction wire (3), the grounding wire passes through the second insulating layer (304) and is connected to the metal braided mesh layer (303), the other end of the grounding wire is connected to the connector of the board, and the connector of the board is connected to a grounding point on the board.

7. The liquid leakage detection line according to claim 6, characterized in that: When the first connector (1) and the second connector (5) are connected to an external power supply system, they are grounded.

8. The liquid leakage detection line according to claim 1 or 2, characterized in that: The first cable (2) comprises a first wire (201) and a second wire (202), the other ends of the first wire (201) and the second wire (202) are connected to the first connector (1), and the second cable (4) comprises a third wire (401) and a fourth wire (402), the other ends of the third wire (401) and the fourth wire (402) are connected to the second connector (5).

9. A liquid leakage detection system, the system comprising the liquid leakage detection line according to any one of claims 1 to 8, the liquid leakage detection line comprising a sensing line (3), a first connector (1) and a second connector (5), characterized in that: Applied to a board, the system comprises: An external power supply system is connected to the external power supply system via a first connector (1) and a second connector (5) to achieve electrical connection of the induction line (3); A voltage comparison component is connected to the liquid leakage detection line and is used to receive the output voltage of the to-be-detected area of ​​the board detected by the sensing line (3), and compare the output voltage level change result with the preset voltage; The controller outputs the leakage result according to the level change result sent by the voltage comparison component.

10. A liquid leakage detection method, the method being applied to the liquid leakage detection system according to claim 9 or the method being based on the liquid leakage detection line according to any one of claims 1 to 8, characterized in that: Applied to a board, the method comprises: The first connector (1) and the second connector (5) in the liquid leakage detection line are configured to be connected to an external power supply system respectively, so as to realize the electrical connection of the sensing line (3) in the liquid leakage detection line; The sensing line (3) is arranged to contact the area to be detected on the board; In response to liquid leakage in the area to be detected, the leaked liquid sequentially penetrates into the second insulating layer (304), the metal braided mesh layer (303), the first insulating layer (302) and the metal core body (301) in the sensing line (3), so that the sensing line (3) detects the output voltage of the area to be detected; The output voltage of the area to be detected is compared with a preset voltage. When the output voltage is less than the preset voltage, a high level output is changed to a low level output result, and it is confirmed that liquid leakage occurs in the area to be detected.

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