Liquid leakage detection system, liquid cooling system and electronic equipment

Abstract

The invention discloses a liquid leakage detection system, a liquid cooling system and electronic equipment, and is applied to the technical field of liquid cooling, the liquid leakage detection system comprises a liquid leakage identification assembly, a branch comprises a first wire, a second wire and a plurality of liquid leakage conductive parts, and the first wire and / or the second wire are / is provided with a plurality of resistor parts connected in series; the leaked liquid conductive part is used for conducting the first wire and the second wire when absorbing leaked liquid; and the control system is used for determining the position of the node to be detected with liquid leakage. According to the liquid leakage detection system provided by the invention, by virtue of the change of the resistance value of the liquid leakage identification assembly, whether the to-be-detected node in the liquid cooling system leaks or not can be judged, and the liquid leakage position can be quickly judged according to the resistance value, so that the to-be-detected node with liquid leakage can be found; and the safety and reliability of the liquid cooling system are ensured.

Description

Technical Field

[0001] This invention relates to the field of liquid cooling technology, and in particular to a leak detection system, a liquid cooling system, and an electronic device. Background Technology

[0002] To meet the ever-increasing demand for computing power, the power density of single-rack units is becoming increasingly higher. Single-phase cold plate liquid cooling technology has taken the lead in the mainstream liquid cooling application market due to its relatively convenient operation and maintenance and its suitability for retrofitting existing air-cooled data centers. Liquid cooling solutions often adopt a split piping design, which requires quick-connect couplings during installation. However, quick-connect couplings are high-frequency leakage points, and because they need to be frequently plugged and unplugged for maintenance, leakage detection is difficult.

[0003] In related technologies, a common method is to set up a leak detection line. When a quick connector leaks, the resistance of the leak detection line is changed to determine whether a leak has occurred. However, related technologies can only determine whether the quick connector is leaking, and due to the large number of quick connectors, it is impossible to determine the location and extent of the leak.

[0004] Therefore, how to improve the detection efficiency and accuracy of leakage detection systems in determining the location of leaks is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a leak detection system, a liquid cooling system, and an electronic device that can accurately determine the location of a leak.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] A leakage detection system includes: a leakage identification component, comprising a branch, the branch including a first wire, a second wire, and a plurality of leakage conductive components disposed between the first wire and the second wire, wherein the first wire and / or the second wire are provided with a plurality of series-connected resistive components, and the leakage conductive components are connected between adjacent resistive components; the leakage conductive components are used to conduct the first wire and the second wire when leakage is absorbed, and the positions of the leakage conductive components correspond one-to-one with the positions of the test nodes in the liquid cooling system; and a control system for acquiring the resistance value of the leakage identification component and determining the position of the test node where leakage has occurred based on the resistance value.

[0008] The present invention also provides a liquid cooling system, including the leakage detection system described in any one of the above claims.

[0009] The present invention also provides an electronic device including the above-described liquid cooling system.

[0010] The leakage detection system provided by this invention has the following advantages: Through the branch configuration in the leakage identification component, each branch can correspond to a row of test nodes in the liquid cooling system. Each branch is equipped with a first wire and a second wire, and several leakage conductive components are arranged between the first and second wires. These leakage conductive components are spaced apart, and each leakage conductive component should correspond one-to-one with a test node, ensuring that when leakage occurs at any test node, the corresponding leakage conductive component will be activated. After the leakage conductive component is activated, current will flow between the first and second wires. A resistor is provided on the first wire and / or the second wire, and the leakage conductive component is connected between adjacent resistors. The resistor can be located on the first wire or... When placing the resistors on the second conductor, the principle for setting them is that when different leakage conductive parts are turned on, the number of resistors through which the current passes is different. Of course, for ease of calculation, the resistance values ​​of each resistor on the same branch are the same, and each leakage conductive part corresponds to one resistor. That is, when the first leakage conductive part is turned on, the resistance value detected in the branch is the resistance value of one resistor. When the second leakage conductive part is turned on, the resistance value detected in the branch is the resistance value of two resistors. It is by obtaining the resistance value that the location of the test node that is leaking can be determined. It should be noted that because the sealing effect of the test node is high, generally only one test node will leak at a time.

[0011] The leakage detection system provided by this invention, through the setting of leakage identification components and control system, can not only determine whether the test node in the liquid cooling system has leaked by using the change in the resistance value of the leakage identification component, but also quickly determine the location of the leakage based on the magnitude of the resistance value, thereby finding the test node where the leakage has occurred, and enabling timely maintenance of the test node where the leakage has occurred, ensuring the safety and reliability of the liquid cooling system.

[0012] In one embodiment, the leak detection component includes a first branch, a second branch, and an Nth branch connected in parallel, wherein the resistance values ​​of the resistive components in the first branch, the second branch, and the Nth branch are of different orders of magnitude. Since there are numerous nodes to be tested in the liquid cooling system, quick connectors located in the same area can be treated as a whole and arranged as a single branch. To achieve leak detection for quick connectors in different areas, the branches are connected in parallel, and the resistance values ​​of the resistive components in each branch are of different orders of magnitude. The detection principle of each branch can be found above. With this configuration, because the resistance values ​​of the resistive components in each branch are of different orders of magnitude, when the resistance value is detected, the order of magnitude of the resistance value can be used to quickly determine which area's leaking conductive component is conducting, thereby determining which area the leaking quick connector is located in. Simultaneously, it can... Based on the specific resistance value, it can be determined which specific conductive component is conducting, thus pinpointing the location of the leaking quick connector. Specifically, the number of conductive components in the first, second, and Nth branches can be N-1. This configuration ensures that the resistance value of the leak detection component is different for each conductive component at any location, guaranteeing that each quick connector corresponds to a unique resistance value, thereby improving the accuracy and efficiency of leak detection. Of course, in actual testing, the resistance value can be converted into a voltage or current value for detection, depending on the specific needs.

[0013] In one embodiment, a humidity detection component is further included. This component acquires the relative humidity of the surrounding environment of the node under test. The control system is connected to the humidity detection component and is also used to calculate the internal water leakage of the electronic device based on the relative humidity of the surrounding environment of the node under test. Specifically, by setting up the humidity detection component, it can monitor the relative humidity of the surrounding environment of the node under test in real time and transmit this humidity to the control system. The control system then converts the relative humidity of the surrounding environment of the node under test into the internal water leakage of the electronic device using a preset algorithm. Specifically, the humidity detection component can be installed on a manifold, integrated with it for easy fixation and closer proximity to the detection tank for more accurate detection. Alternatively, the humidity detection component can be installed in other locations on the electronic device, close to the corresponding manifold, as long as it can detect the relative humidity of the surrounding environment of the node under test. This method is used to estimate the internal water leakage of the electronic device, thereby providing a leakage risk level and allowing staff to perform corresponding maintenance operations based on the leakage risk level, reducing false alarms and improving maintenance accuracy and efficiency.

[0014] The liquid cooling system provided by the present invention is equipped with the above-mentioned leakage detection system. Since the leakage detection system has the above-mentioned technical effects, the liquid cooling system equipped with the leakage detection system should also have the corresponding technical effects.

[0015] In one embodiment, the liquid storage assembly is a cold plate, and the node to be tested is a quick connector. It also includes a manifold for supplying cooling medium to the cold plate. The manifold has several connecting ports, which are detachably connected to the quick connectors. A leak detection component is disposed on the manifold, and the leak-conductive component of the leak detection component corresponds one-to-one with the position of each connecting port. This configuration, by placing the leak detection component on the manifold and positioning the leak-conductive component adjacent to the connecting ports, ensures that when a leak occurs at the quick connector connected to the connecting port, the liquid flows to the leak-conductive component at the fastest speed, thereby quickly connecting the first and second wires. This improves the detection efficiency of the quick connector when a leak occurs, thus increasing the overall efficiency and preventing damage to electrical components.

[0016] In one embodiment, the upper surface of the manifold is provided with a detection groove, which is located adjacent to each of the communication ports. The leakage detection component is disposed within the detection groove. This configuration, through the detection groove, allows for the collection of leakage from quick-connect fittings, which are typically small in volume. This ensures that the conductive components can quickly and effectively absorb the leakage, improving the accuracy and efficiency of leakage detection.

[0017] In one embodiment, the upper surface of the water distributor is further provided with drainage channels. The number of drainage channels is the same as the number of connecting ports, and they correspond one-to-one. The drainage channels are located between the connecting ports and the detection channels, and the drainage channels are connected to the detection channels, so that the leakage from the quick connector can flow into the detection channels through the drainage channels. Because there is a certain distance between the detection channels and the connecting ports, the drainage channels guide the leakage from the quick connector into the detection channels, ensuring that the conductive components can quickly and effectively absorb the leakage, thus improving the accuracy and efficiency of leakage detection.

[0018] In one embodiment, the quick connector includes a male connector and a female connector. One end of the female connector is connected to the male connector, and the other end is connected to the manifold. The female connector has a notch on its periphery near the male connector for leakage to flow out. Since a weakened seal between the male and female connectors is a major factor causing leakage in the quick connector, the notch on the female connector ensures that when leakage occurs, the leakage flows promptly through the notch to the outer surface of the quick connector, then flows downwards along its surface until it enters the detection tank. Simultaneously, the addition of the drainage channel also guides the leakage from the quick connector into the detection tank in a timely manner, improving leakage detection efficiency.

[0019] In one embodiment, the bottom of the female connector is surrounded by a chamfered surface, which slopes from the outer periphery of the bottom of the female connector toward the center towards the manifold, forming a water storage tank between the female connector and the upper surface of the manifold; the drainage channel extends from the detection tank to the water storage tank. Specifically, by providing a chamfered surface at the bottom of the female connector, a water storage tank is formed between the female connector and the upper surface of the manifold. The water storage tank is relatively small, and leakage from the quick connector will collect in the water storage tank; the drainage channel connects the detection tank and the water storage tank, and leakage in the water storage tank will flow through the drainage channel to the detection tank, ensuring that the conductive components can quickly and effectively absorb the leakage, improving the accuracy and efficiency of leakage detection.

[0020] In one embodiment, the inner bottom of the water manifold is further provided with several flow-guiding reinforcing ribs, and the positions of the flow-guiding reinforcing ribs correspond to the positions of the water inlet. This arrangement, due to the presence of detection grooves and flow-guiding grooves on the water manifold, reduces its strength. By providing flow-guiding reinforcing ribs on the inner bottom of the water manifold, its strength can be enhanced. Simultaneously, the flow-guiding reinforcing ribs can also guide the flow of the cooling medium within the water manifold, ensuring a more uniform flow of the cooling medium.

[0021] The electronic device provided by the present invention is equipped with the above-mentioned liquid cooling system. Since the liquid cooling system has the above-mentioned technical effects, the electronic device equipped with the liquid cooling system should also have the corresponding technical effects. Attached Figure Description

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

[0023] Figure 1 This is a schematic diagram of the structure of a quick connector in related technologies.

[0024] Figure 2 This is a schematic diagram of a specific embodiment of a branch in the leakage detection system provided by the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of the first branch, the second branch, and the Nth branch in the leakage detection system provided by the present invention.

[0026] Figure 4 This is a cross-sectional view of the leakage conductive component in the leakage detection system provided by the present invention.

[0027] Figure 5 This is a schematic diagram of a specific embodiment of the liquid cooling system provided by the present invention.

[0028] Figure 6 for Figure 5 The diagram shows a partial structural schematic of the liquid cooling system.

[0029] Figure 7 for Figure 5 The diagram shows the assembly structure of the cooling plate and the manifold in the liquid cooling system.

[0030] Figure 8 for Figure 5 The diagram shows the structure of the manifold in the liquid cooling system.

[0031] Figure 9 for Figure 8 The diagram shows the structure of the bottom plate in the water distribution manifold.

[0032] Figure 10 for Figure 5 The diagram shows the structure of the cold plate in the liquid cooling system.

[0033] Figure 11 for Figure 9 A partial structural diagram of the cold plate in the liquid cooling system is shown.

[0034] Figure 12 This is a cross-sectional view of each quick connector in the liquid cooling system provided by the present invention.

[0035] Figure 13 This is a schematic diagram of another specific embodiment of the liquid cooling system provided by the present invention.

[0036] Figure 14 This is a schematic diagram of the connection structure of the control system in the liquid cooling system provided by the present invention.

[0037] Figure 15 This is a schematic diagram of the principle structure of the control system in the liquid cooling system provided by the present invention.

[0038] Reference numerals: 1-Leakage detection component; 10-Branch; 101-First branch; 102-Second branch; 103-Nth branch; 11-First wire; 12-Second wire; 13-Leakage conductive component; 131-Sensing wire; 132-Water-sensitive outer layer; 14-Resistor component; 15-Humidity detection component; 16-Indication component; 17-Voltage comparator; 2-Control system; 3-Cold plate; 31-Quick connector; 311-Male connector; 3 12-Female connector; 3121-Chamfered surface; 3122-Notch; 32-Inlet quick connector; 33-Return quick connector; 4-Manifold; 41-Connecting port; 411-Inlet connecting port; 412-Return connecting port; 42-Detection tank; 421-Inlet detection tank; 422-Return detection tank; 43-Drainage tank; 44-Baffle strip; 45-Flow guiding reinforcing rib; 46-Reinforcing reinforcing rib; 47-Water storage tank; 401-Top cover; 402-Base plate. Detailed Implementation

[0039] The core of this invention is to provide a leak detection system, a liquid cooling system, and an electronic device that can detect the location of leaks and accurately determine the extent of leaks, thereby reducing false alarms.

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present invention.

[0041] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. The terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two elements. The terms "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, where the range of similarity is within an acceptable deviation range, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity, i.e., the limitations of the measurement system. For example, "parallel" includes absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism can be, for example, within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, where the acceptable deviation range for approximate equality can be, for example, the difference between the two equal items being less than or equal to 5% of either one. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] In this implementation, please refer to Figure 2 and Figure 3 The leakage detection system includes the following components.

[0044] Leakage detection component 1 includes a branch 10 connected to a leakage detection circuit. The branch 10 includes a first wire 11, a second wire 12, and a plurality of leakage conductive components 13 disposed between the first wire 11 and the second wire 12. The first wire 11 and / or the second wire 12 are provided with a plurality of series-connected resistors 14. The leakage conductive components 13 are connected between adjacent resistors 14. The leakage conductive components 13 are used to conduct the first wire 11 and the second wire 12 when leakage is absorbed. The position of the leakage conductive components 13 corresponds one-to-one with the position of the node to be tested in the liquid cooling system.

[0045] The control system 2 is used to acquire the resistance value of the leakage detection component 1 and determine the location of the node under test where leakage has occurred based on the resistance value.

[0046] Specifically, such as Figure 15 As shown, the leakage detection component 1 is located in the leakage detection circuit, which includes the leakage detection component 1 and a voltage comparator 17. The leakage detection component 1 can be a leakage detection line; when the leakage detection component 1 does not detect leakage, its resistance is infinite; when leakage occurs, its resistance becomes a finite resistance value. The non-inverting input of the voltage comparator 17 is the reference source input, and the inverting input is the input value of the leakage detection component 1. The input value can be a voltage or current signal converted from a resistance signal; the reference source can be set according to actual needs; the voltage comparator is adjusted by the change in the resistance value of the leakage detection component 1. The amplitude of the input value at the inverting input terminal 17 controls the output level signal of the leakage detection circuit to different levels. When the voltage at the "+" input terminal of voltage comparator 17 is lower than the "-" input terminal, the output of voltage comparator 17 is low, and the output of the leakage detection circuit is high. At this time, it is determined that no leakage has occurred at the node under test. When the voltage at the "+" input terminal of voltage comparator 17 is higher than the "-" input terminal, the output of voltage comparator 17 is high, and the output of the leakage detection circuit is low. At this time, it is determined that a leakage has occurred at a certain node under test. Then, the specific value can be used to determine which location of the node under test has leaked.

[0047] The leakage detection system provided by this invention, through the setting of branch 10 in the leakage identification component 1, allows each branch 10 to correspond to a row of test nodes in the liquid cooling system. Each branch 10 is provided with a first wire 11 and a second wire 12. A plurality of leakage conductive components 13 are provided between the first wire 11 and the second wire 12. The leakage conductive components 13 are spaced apart, and each leakage conductive component 13 should correspond one-to-one with a quick connector 31, ensuring that when any quick connector 31 leaks, the corresponding leakage conductive component 13 can be connected. After the leakage conductive component 13 is connected, current will flow between the first wire 11 and the second wire 12. A resistor component 14 is provided on the first wire 11 and / or the second wire 12. The leakage conductive component 13 is connected between adjacent resistor components 14. The resistor component 14 can be set on the first wire 11 or on... On the second conductor 12, the principle of setting the resistor component 14 is such that when the leakage conductive component 13 at different positions is turned on, the number of resistor components 14 through which the current passes is different. Of course, for ease of calculation, the resistance values ​​of each resistor component 14 located on the same branch 10 are the same, and each leakage conductive component 13 corresponds to one resistor component 14. That is, when the first leakage conductive component 13 is turned on, the resistance value detected in the branch 10 is the resistance value of one resistor component 14. When the second leakage conductive component 13 is turned on, the resistance value detected in the branch 10 is the resistance value of two resistor components 14. It is by obtaining the resistance value that it is possible to determine which quick connector 31 is leaking. It should be noted that, because the quick connector 31 has a high sealing effect, generally only one quick connector 31 will leak at a time.

[0048] The leakage detection system provided by this invention, through the setting of leakage identification component 1 and control system 2, can not only determine whether the node under test in the liquid cooling system has leaked by means of the change in resistance value of leakage identification component 1, but also quickly determine the location of leakage based on the magnitude of resistance value, thereby finding the node under test that has leaked, and timely maintenance of the node under test that has leaked, ensuring the safety and reliability of the liquid cooling system.

[0049] In some embodiments, the leakage detection component 1 includes a first branch 101, a second branch 102, and an Nth branch 103 connected in parallel. The resistance values ​​of the resistors 14 in the first branch 101, the second branch 102, and the Nth branch 103 are of different orders of magnitude. The first branch 101, the second branch 102, and the Nth branch 103 are all connected to the leakage detection circuit. Since there are numerous nodes to be tested in the liquid cooling system, quick connectors 31 located in the same area can be treated as a whole and arranged as a single branch 10. To achieve leakage detection for quick connectors 31 in different areas, each branch 10 is connected in parallel, and the resistance values ​​of the resistors 14 in each branch 10 are of different orders of magnitude. The detection principle of each branch 10 can be found above. With this configuration, since the resistance values ​​of the resistors 14 in each branch 10 are of different orders of magnitude, when the resistance value is detected, the order of magnitude of the resistance value can be used to quickly determine which area's leakage conductive component 13 is conducting, thereby determining that a leakage has occurred. The location of the quick connector 31 can be determined by its resistance value. Furthermore, the specific location of the leaking conductive component 13 can be determined based on the resistance value, thus pinpointing the exact location of the leaking quick connector 31. Specifically, the number of leaking conductive components 13 in the first branch 101, the second branch 102, and the Nth branch 103 can be N-1. This configuration ensures that the resistance value of the leak detection component 1 is different for each leaking conductive component 13 at any location, guaranteeing that each quick connector 31 corresponds to a unique resistance value, thereby improving the accuracy and efficiency of leak detection. Of course, in actual testing, the resistance value can be converted into a voltage or current value for detection, depending on the specific needs. For example, the resistance of each resistor 14 in the first branch 101 is 1 ohm, the resistance of each resistor 14 in the second branch 102 is 10 ohms, and the resistance of each resistor 14 in the third branch 10 is 100 ohms. Then, when the resistance of the leakage detection circuit is 5 ohms, it indicates that the fifth leakage conductive component 13 in the first branch 101 is conducting, indicating that the corresponding node under test has leaked. When the resistance of the leakage detection circuit is 400 ohms, it indicates that the fourth leakage conductive component 13 in the third branch 10 is conducting, indicating that the corresponding node under test has leaked. This method has high efficiency and accurate leakage location determination.

[0050] In some implementation methods, please refer to Figure 4The leakage conductive component 13 includes an induction wire 131 and a water-sensitive outer layer 132. The water-sensitive outer layer 132 surrounds the induction wire 131 and changes from its original color to transparent after absorbing leakage. Specifically, to verify the location of leakage, a water-sensitive outer layer 132 is provided around the induction wire 131. The induction wire 131 can be red, and the water-sensitive outer layer 132 is gray. The water-sensitive outer layer 132 is a water-sensitive material that changes color upon contact with water. The water-sensitive material's color-changing principle is related to the reflection and absorption of light. During the process of the water-sensitive material changing color upon contact with water, it absorbs and reflects light, thus producing different color effects. Utilizing the differences in the optical properties of materials, the physical wetting effect of water, and the refraction and scattering behavior of light at the interface of the medium, the inner part is made of highly saturated red fibers to ensure color display; the outer part is made of gray fibers, which are highly opaque when dry due to micropores and rough interfaces. When dry, the refractive index of the outer fibers and air... The difference is significant, with a refractive index of approximately 1.00, resulting in strong light scattering and an opaque gray appearance. Upon contact with water, the water fills the pores, the refractive index matches, scattering weakens, and the outer layer becomes transparent. After leakage, the refractive index matching at the fiber-water interface leads to a significant reduction in scattering, with a refractive index of approximately 1.33. The transparency of the water-sensitive outer layer 132 increases, allowing light to penetrate the now transparent water-sensitive outer layer 132. The internal red reflector reflects red light, thus creating a visually significant color change effect from "gray" to "red." The entire process is physical and reversible; the evaporation of water restores the outer layer's contact with air, the strong scattering caused by the large refractive index difference reappears, and the gray appearance is restored. Through the above method, visual leakage detection can be verified.

[0051] In some embodiments, a humidity detection component 15 is also included. The humidity detection component 15 is used to obtain the relative humidity of the surrounding environment of the water manifold 4. The control system 2 is connected to the humidity detection component 15 and is also used to calculate the internal leakage of the electronic equipment based on the relative humidity of the surrounding environment of the water manifold 4. The humidity detection component 15 is arranged adjacent to the detection tank 42, so as to better obtain the degree of leakage in the detection tank 42. Specifically, through the setting of the humidity detection component 15, the humidity detection component 15 can monitor the relative humidity of the surrounding environment of the manifold 4 in real time, and transmit the relative humidity of the surrounding environment of the manifold 4 to the control system 2. The control system 2 converts the relative humidity of the surrounding environment of the manifold 4 into the internal leakage of the electronic device through a preset algorithm. Specifically, the humidity detection component 15 can be installed on the manifold 4, with an integrated design, which facilitates the fixing of the humidity detection component 15, and the humidity detection component 15 can be closer to the detection tank 42 for more accurate detection. Of course, the humidity detection component 15 can also be installed in other positions of the electronic device, close to the corresponding manifold 4, as long as it can detect the relative humidity of the surrounding environment of the manifold 4. The above method is to estimate the internal leakage of the electronic device, thereby providing the leakage risk level of the electronic device, allowing staff to perform corresponding maintenance operations based on the leakage risk level of the electronic device, reducing the risk of false alarms and failures, and improving maintenance accuracy and efficiency.

[0052] In some embodiments, at least one humidity detection component 15 is provided around the upper surface of the water manifold 4, and each humidity detection component 15 is connected to the control system 2. The control system 2 calculates the relative humidity of the surrounding environment of the water manifold 4 based on the average or maximum value of the detection results of each humidity detection component 15.

[0053] In some implementation methods, please refer to Figure 14 The control system 2 is used to calculate the internal water leakage of the electronic device based on the relative humidity of the surrounding environment of the water manifold 4, the relative humidity of the air inlet of the electronic device, and the sensitivity coefficient of the electronic device. Specifically, the control system 2 is also used to calculate the sensitivity coefficient of the electronic device based on the internal air flow rate of the electronic device, the internal air density of the electronic device, and the airflow organization efficiency coefficient.

[0054] In some implementations, the control system 2 is used to calculate the internal leakage of the electronic device according to formula (1) and to calculate the sensitivity coefficient of the electronic device according to formula (2).

[0055]

[0056]

[0057] Wherein: RHinternal: relative humidity of the surrounding environment of the manifold 4, unit: %RH.

[0058] RHinlet: Relative humidity at the air inlet of electronic equipment, unit: %RH.

[0059] Lleak: Internal water leakage rate of electronic equipment, unit: kg / s.

[0060] kserver: Sensitivity coefficient of electronic devices.

[0061] Qair: Internal airflow rate of electronic equipment, unit: m 3 / s.

[0062] ρs: Internal air density of electronic equipment, kg / m³ 3 .

[0063] ηflow: airflow organization efficiency coefficient, with a value range of 0.3-0.9.

[0064] In some implementations, the control system 2 is also used to determine the leakage risk level of the electronic device based on the internal leakage of the electronic device; specifically, the leakage risk level can be determined based on the internal leakage of the electronic device, for example, the internal leakage of the electronic device can be divided into the following five levels.

[0065] 1. Internal water leakage of electronic equipment <1×10 －6 At a rate of kg / s, the risk level is L0, meaning normal leakage, which is negligible. 2. The internal leakage rate of the electronic equipment is 1×10⁻⁶. －6 Up to 1×10 －5 At a rate of kg / s, the risk level is L1, indicating a minor leak requiring monitoring, but no significant risk. 3. The internal water leakage rate of the electronic equipment is 1×10⁻⁶. －5 Up to 1×10 －4 At a rate of kg / s, the risk level is L2, indicating a moderate leak that requires attention and may affect humidity. 4. The internal leakage rate of electronic equipment is 1×10⁴ kg / s. －4 Up to 1×10 －3 At a rate of kg / s, the risk level is L3, indicating a serious leak requiring immediate attention and posing a equipment risk. 5. Internal water leakage of electronic equipment > 1×10⁻⁶ kg / s. －3 At a speed of kg / s, the risk level is L4, which means an emergency situation requiring immediate shutdown and a significant risk of damage.

[0066] In some embodiments, a prompting component 16 is also included. The control system 2 is connected to the prompting component 16, which is used to display the leakage risk level of the electronic device. Specifically, the prompting component 16 can be a display screen, a buzzer, a warning light, or other components. For example, depending on the different leakage risk levels, the leakage risk level of the electronic device can be displayed to the staff by changing the volume of the buzzer, or by adjusting the number of warning lights lit, or by directly displaying the lights on the display screen.

[0067] In addition to the aforementioned leak detection system, this invention also provides a liquid cooling system including the aforementioned leak detection system. Please refer to [link / reference needed]. Figure 5 and Figure 6 Specifically, the liquid cooling system includes inlet and outlet water pipes, a manifold 4, quick connectors 31, a first cold plate assembly 3, a second cold plate assembly 3, and a leakage detection system. The inlet and outlet water pipes include an inlet pipe and an outlet pipe. The cooling medium enters the node manifold 4 through the inlet pipe, then splits, and then enters the parallel first and second cold plate assemblies 3, carrying away the heat from the first and second heating elements. After entering the node manifold 4, the medium merges and flows out of the liquid cooling system through the outlet pipe. The first and second heating elements can be GPUs (Graphics Processing Units), switch boards, etc.

[0068] Furthermore, the liquid cooling system also includes a liquid storage component with several test nodes on it; a leak detection component 1 is located adjacent to the liquid storage component, and the leak-conductive component 13 of the leak detection component 1 corresponds one-to-one with the position of the test nodes. Specifically, the liquid storage component can be a cold plate 3 directly connected to the manifold 4, an immersion cooling component, or a liquid cooling pipeline. The liquid storage component can be any component in the liquid cooling system that requires leak detection.

[0069] In some implementation methods, please refer to Figure 7 The liquid storage component is a cold plate 3, and the node to be tested is a quick connector 31. It also includes a manifold 4 for supplying cooling medium to the cold plate 3. The manifold 4 has several connecting ports 41, which are detachably connected to the quick connectors 31. A leak detection component 1 is mounted on the manifold 4, and the leak-conductive component 13 of the leak detection component 1 corresponds one-to-one with the position of the connecting port 41. This configuration, by mounting the leak detection component 1 on the manifold 4 and placing the leak-conductive component 13 adjacent to the connecting port 41, ensures that when a leak occurs, the liquid from the quick connector 31 connected to the connecting port 41 flows to the leak-conductive component 13 at the fastest speed, thereby quickly connecting the first wire 11 and the second wire 12. This improves the detection efficiency of the quick connector 31 when a leak occurs, thus increasing response efficiency and preventing damage to electrical components.

[0070] In some implementation methods, please refer to Figure 8 The upper surface of the water manifold 4 is provided with a detection groove 42, which is located above the top cover 401. The detection groove 42 is located adjacent to each communication port 41, and the leakage detection component 1 is disposed in the detection groove 42. With the above arrangement, the detection groove 42 can collect the leakage from the quick connector 31, which is often small, ensuring that the conductive component 13 can quickly and effectively absorb the leakage, thus improving the accuracy and efficiency of leakage detection.

[0071] In some embodiments, the upper surface of the manifold 4 is further provided with a drainage channel 43. The number of drainage channels 43 is the same as the number of connecting ports 41 and they correspond one-to-one. The drainage channels 43 are located between the connecting ports 41 and the detection channels 42, and the drainage channels 43 are connected to the detection channels 42 so that the leakage of the quick connector 31 can flow into the detection channels 42 through the drainage channels 43. By setting the drainage channels 43, since there is a certain distance between the detection channels 42 and the connecting ports 41, the leakage of the quick connector 31 is guided into the detection channels 42 through the drainage channels 43, ensuring that the leakage conductive component 13 can quickly and effectively absorb the leakage, thereby improving the accuracy and efficiency of leakage detection. Specifically, the depth of the detection tank 42 can be less than the depth of the detection tank 42 to ensure that the leaked liquid can flow into the detection tank 42 as quickly as possible; of course, in order to further improve the flow efficiency of the leaked liquid, the bottom of the detection tank 42 can be set as an inclined surface, and the bottom of the detection tank 42 slopes downward from the side away from the detection tank 42 to the side closer to the detection tank 42 to accelerate the flow speed of the leaked liquid.

[0072] In some embodiments, the leakage conductive component 13 in the leakage detection component 1 is arranged adjacent to the drainage channel 43, and the leakage conductive component 13 and the drainage channel 43 correspond one-to-one. This arrangement is to ensure that the leakage in the drainage channel 43 can flow to the leakage conductive component 13 as soon as possible, thereby improving the detection efficiency.

[0073] In some embodiments, the connection port 41 includes a plurality of inlet water connection ports 411 and a plurality of return water connection ports 412, the inlet water connection ports 411 and the return water connection ports 412 being respectively connected to the inlet water quick connector 32 and the return water quick connector 33 of the cold plate 3; the detection tank 42 includes an inlet water detection tank 421 and a return water detection tank 422, the inlet water detection tank 421 being arranged adjacent to each inlet water connection port 411, the return water detection tank 422 being arranged adjacent to each return water connection port 412, and a branch 10 being arranged in the inlet water detection tank 421 and the return water detection tank 422 respectively; or, the detection tank 42 is in the form of a ring structure and is arranged around each connection port 41 along the upper surface of the water distributor 4, and the same branch 10 is arranged in the inlet water detection tank 421 and the return water detection tank 422. In the above configuration, the inlet detection tank 421 and the return detection tank 422 can be located in the same annular tank, or they can be two separate tanks. When the number of quick connectors 31 connected to the same group of water collectors 4 is small, the inlet detection tank 421 and the return detection tank 422 can be connected through the same branch 10. Of course, the inlet detection tank 421 and the return detection tank 422 can also be connected and arranged around the upper surface of the water collector 4, and a branch 10 can be arranged in the inlet detection tank 421 and the return detection tank 422 respectively. Any arrangement that can detect leakage of a single quick connector 31 is acceptable.

[0074] In some embodiments, the upper surface of the water manifold 4 is also provided with a baffle 44. The extension direction of the baffle 44 is parallel to the arrangement direction of the connecting port 41, and the baffle 44 is located between the water inlet connecting port 411 and the water return connecting port 412 to prevent the leakage of the water inlet quick connector 32 from flowing to the position of the water return quick connector 33, thereby reducing the detection accuracy.

[0075] In some implementation methods, please refer to Figure 10 and Figure 11 The quick connector 31 includes a male connector 311 and a female connector 312. One end of the female connector 312 is connected to the male connector 311, and the other end is connected to the manifold 4. The female connector 312 has a notch 3122 on its periphery near the male connector 311 for leakage to drain. Please refer to... Figure 1The weakened sealing effect between the male connector 311 and the female connector 312 is the main factor causing leakage in the quick connector 31. Therefore, by providing a notch 3122 on the female connector 312, it can be ensured that when leakage occurs, the liquid from the quick connector 31 flows through the notch 3122 to the outer surface of the quick connector 31, and then flows down the surface of the quick connector 31 until it flows into the detection tank 42. At the same time, due to the addition of the drainage channel 43, the leakage from the quick connector 31 can also be guided into the detection tank 42 in a timely manner, improving the leakage detection efficiency. Furthermore, in order to further improve the flow efficiency of the leakage, the notch 3122 is located on the side of the female connector 312 closer to the drainage channel 43, that is, after the leakage flows out through the notch 3122, it can flow into the drainage channel 43 as quickly as possible, and then flow into the detection tank 42.

[0076] In some implementation methods, please refer to Figure 11 and Figure 12 The bottom of the female connector 312 is surrounded by a chamfered surface 3121. The chamfered surface 3121 slopes from the outer periphery of the bottom of the female connector 312 towards the center and close to the manifold 4, forming a water storage tank 47 between the female connector 312 and the upper surface of the manifold 4. The drainage channel 43 extends from the detection channel 42 to the water storage tank 47. Specifically, by setting the chamfered surface 3121 at the bottom of the female connector 312, a water storage tank 47 is formed between the female connector 312 and the upper surface of the manifold 4. The space of the water storage tank 47 is small, and the leakage of the quick connector 31 will collect in the water storage tank 47. The drainage channel 43 connects the detection channel 42 and the water storage tank 47. The leakage in the water storage tank 47 will flow into the detection channel 42 through the drainage channel 43, which facilitates the rapid and effective absorption of the leakage by the conductive component 13, improving the accuracy and efficiency of leakage detection.

[0077] In some implementation methods, please refer to Figure 9 The inner bottom of the manifold 4 is also provided with several flow-guiding reinforcing ribs 45, and the positions of the flow-guiding reinforcing ribs 45 correspond to the positions of the water inlet 411. Due to the presence of structures such as the detection groove 42 and the flow-guiding groove 43 on the manifold 4, the strength of the manifold 4 is reduced. By providing flow-guiding reinforcing ribs 45 on the inner bottom of the manifold 4, the strength of the manifold 4 can be enhanced. At the same time, the flow-guiding reinforcing ribs 45 can also guide the flow of the cooling medium within the manifold 4, ensuring a more uniform flow of the cooling medium.

[0078] In some embodiments, the arrangement direction of each flow-guiding reinforcing rib 45 is parallel to the arrangement direction of each connecting port 41, and they are evenly arranged. The extension direction of the flow-guiding reinforcing rib 45 is perpendicular to the arrangement direction of each connecting port 41, so as to form a flow channel between adjacent flow-guiding reinforcing ribs 45, through which the cooling medium flows to the connecting port 41. Specifically, the number of flow-guiding reinforcing ribs 45 can be matched with the number of connecting ports 41. For example, one flow-guiding reinforcing rib 45 is provided on each of the left and right sides of each connecting port 41. The above arrangement is to ensure that while the flow-guiding reinforcing ribs 45 play a reinforcing role, they can also play a certain constraint role on the flow direction of the cooling medium, so that the cooling medium can flow evenly to each connecting port 41. Here, the connecting port 41 specifically refers to the water inlet connecting port 411, thereby ensuring that the flow rate into each water inlet quick connector 32 is uniform.

[0079] In some implementation methods, please refer to Figure 9 The inner bottom of the water distribution manifold 4 is also provided with several reinforcing ribs 46, which correspond to the positions of the return water connection port 412. Since the return water connection port 412 has little impact on the flow of the cooling medium, the shape and extension direction of the reinforcing ribs 46 can be set as needed to achieve a strengthening effect. Furthermore, both the flow guiding ribs 45 and the reinforcing ribs 46 are located on the base plate 402, which facilitates processing and provides good flow guiding and strengthening effects.

[0080] In some implementation methods, please refer to Figure 13 The quick connector 31 can be a hand-plug connector. The leakage detection component 1 is set at the bottom of the hand-plug connector and can be presented by a leakage detection rope. Each leakage detection component 1 is provided with at least two leakage conductive parts 13, which correspond to the water inlet and water outlet of the two hand-plug connectors respectively. Furthermore, the leakage detection component 1 is extended in a zigzag bend. The zigzag bend extends to increase the overall length of the leakage detection component 1, which facilitates the setting of the resistor component 14 and the leakage conductive parts 13. On the other hand, it also has a certain telescopic capacity, which facilitates installation.

[0081] Specifically, in one embodiment, the liquid cooling system includes a quick connector 31 with a notch 3122 and a cold plate 3 assembly, a manifold 4 with sealing and drainage characteristics, a leakage detection component 1 with series or series-parallel characteristics, and a humidity sensor. The specific leak location is determined based on the ratio of resistance to conductor length and the difference in resistance values. Simultaneously, the internal leakage of the electronic device can be indirectly determined based on the humidity readings from the relative humidity sensor. Furthermore, the application of water-sensitive materials reduces the risk of false alarms and failures in the leakage detection system. The technology provided by this invention not only solves the problem of leakage detection in the quick connector 31 of the cold plate 3 inside the node, but also accurately locates which quick connector of the specific cold plate 3 has leaked. Combined with the humidity sensor, the amount of internal leakage in the electronic device can be determined, reducing the risk of false alarms and failures in the leakage detection system. Furthermore, the integrated internal and external structure design of the manifold 4 also solves the problem of uneven flow when multiple cold plates 3 are connected in parallel.

[0082] In addition to the aforementioned liquid cooling system, this invention also provides an electronic device that includes the liquid cooling system. Specifically, the electronic device can be a single-node server, storage device, switching device, rack server, or supernode server. The rack server is a high-density deployed general-purpose server, with its height measured in "U" (1U = 1.75 inches), typically available in 1U, 2U, and 3U sizes. A supernode server refers to a high-performance computing unit specifically designed for large-scale artificial intelligence models. A supernode is a large-scale computing unit formed by integrating multiple computing power electrical components through high-speed interconnect technology, aiming to solve the problems of computing power coordination and efficiency in the training of large-scale artificial intelligence models. The structure of other parts of this electronic device can be found in related technologies and will not be elaborated upon here.

[0083] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0084] The leakage detection system, liquid cooling system, and electronic equipment provided by this invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of this invention.

Claims

1. A leakage detection system, characterized in that, include: The leakage detection component (1) includes a branch (10), which includes a first wire (11), a second wire (12), and a plurality of leakage conductive components (13) disposed between the first wire (11) and the second wire (12). The first wire (11) and / or the second wire (12) are provided with a plurality of series-connected resistors (14), and the leakage conductive components (13) are connected between adjacent resistors (14). The leakage conductive components (13) are used to conduct the first wire (11) and the second wire (12) when leakage is absorbed. The position of the leakage conductive components (13) corresponds one-to-one with the position of the node to be tested in the liquid cooling system. The control system (2) is used to obtain the resistance value of the leakage identification component (1) and determine the location of the node under test where leakage has occurred based on the resistance value.

2. The leakage detection system according to claim 1, characterized in that, The leakage detection component (1) includes a first branch (101), a second branch (102), and an Nth branch (103) connected in parallel. The resistance values ​​of the resistor components (14) in the first branch (101), the second branch (102), and the Nth branch (103) are on different orders of magnitude.

3. The leakage detection system according to claim 1 or 2, characterized in that, It also includes a humidity detection component (15), which is used to obtain the relative humidity of the surrounding environment of the node to be tested. The control system (2) is connected to the humidity detection component (15). The control system (2) is also used to calculate the internal water leakage of the electronic device based on the relative humidity of the surrounding environment of the node to be tested.

4. The leakage detection system according to claim 3, characterized in that, The control system (2) is used to calculate the internal water leakage of the electronic device based on the relative humidity of the surrounding environment of the node to be tested, the relative humidity of the air inlet of the electronic device, and the sensitivity coefficient of the electronic device. The control system (2) is also used to calculate the sensitivity coefficient of the electronic device based on the internal air flow rate of the electronic device, the internal air density of the electronic device, and the airflow organization efficiency coefficient.

5. The leakage detection system according to claim 4, characterized in that, The control system (2) is used to calculate the internal water leakage of the electronic device according to formula (1) and to calculate the sensitivity coefficient of the electronic device according to formula (2); ； ； in: RHinternal: Relative humidity of the surrounding environment of the node under test, in %RH; RHinlet: Relative humidity at the air inlet of electronic equipment, unit: %RH; Lleak: Internal water leakage rate of electronic equipment, unit: kg / s; kserver: Sensitivity coefficient of electronic devices; Qair: Internal airflow rate of electronic equipment, unit: m 3 / s; ρs: Internal air density of electronic equipment, kg / m³ 3 ; ηflow: airflow organization efficiency coefficient, with a value range of 0.3-0.

9.

6. The leakage detection system according to claim 5, characterized in that, The control system (2) is also used to determine the leakage risk level of the electronic device based on the internal leakage amount of the electronic device; It also includes a prompting component (16), the control system (2) is connected to the prompting component (16), the prompting component (16) is used to display the leakage risk level of the electronic device.

7. A liquid cooling system, including a leakage detection system, characterized in that, The leakage detection system is the leakage detection system according to any one of claims 1 to 6.

8. The liquid cooling system according to claim 7, characterized in that, It also includes a liquid storage component, on which a plurality of the nodes to be tested are provided; the leakage detection component (1) is disposed adjacent to the liquid storage component, and the leakage conductive component (13) of the leakage detection component (1) corresponds one-to-one with the position of the node to be tested.

9. The liquid cooling system according to claim 8, characterized in that, The liquid storage component is a cold plate (3), and the node to be tested is a quick connector (31). It also includes a manifold (4) for supplying cooling medium to the cold plate (3). The manifold (4) is provided with several connecting ports (41), and the connecting ports (41) are detachably connected to the quick connector (31). The leakage detection component (1) is provided on the manifold (4), and the leakage conductive component (13) of the leakage detection component (1) corresponds one-to-one with the position of the connecting port (41).

10. The liquid cooling system according to claim 9, characterized in that, The upper surface of the water distributor (4) is provided with a detection groove (42), the detection groove (42) is arranged adjacent to each of the communication ports (41), and the leakage detection component (1) is arranged in the detection groove (42).

11. The liquid cooling system according to claim 10, characterized in that, The upper surface of the water distribution manifold (4) is also provided with a drainage channel (43). The number of drainage channels (43) is the same as that of the connecting port (41) and they correspond one-to-one. The drainage channel (43) is located between the connecting port (41) and the detection channel (42), and the drainage channel (43) is connected to the detection channel (42) so that the leakage of the quick connector (31) flows into the detection channel (42) through the drainage channel (43).

12. The liquid cooling system according to claim 11, characterized in that, The leakage conductive component (13) in the leakage identification component (1) is disposed adjacent to the drainage channel (43), and the leakage conductive component (13) corresponds to the drainage channel (43) one by one.

13. The liquid cooling system according to claim 10, characterized in that, The connection port (41) includes a plurality of water inlet ports (411) and a plurality of water return ports (412), and the water inlet ports (411) and the water return ports (412) are respectively connected to the water inlet quick connector (32) and the water return quick connector (33) of the cold plate (3); The detection tank (42) includes an inlet detection tank (421) and a return water detection tank (422). The inlet detection tank (421) is arranged adjacent to each of the inlet connection ports (411), and the return water detection tank (422) is arranged adjacent to each of the return water connection ports (412). A branch (10) is arranged in each of the inlet detection tank (421) and the return water detection tank (422). Alternatively, the detection tank (42) is in the form of a ring structure and is arranged around each of the communication ports (41) along the upper surface of the water distributor (4), and the same branch (10) is arranged in the water inlet detection tank (421) and the water return detection tank (422).

14. The liquid cooling system according to claim 13, characterized in that, The upper surface of the water distribution manifold (4) is also provided with a baffle (44), the extension direction of the baffle (44) is parallel to the arrangement direction of the connecting port (41), and the baffle (44) is located between the water inlet connecting port (411) and the water return connecting port (412).

15. The liquid cooling system according to claim 11, characterized in that, The quick connector (31) includes a male connector (311) and a female connector (312). One end of the female connector (312) is connected to the male connector (311), and the other end is connected to the manifold (4). The female connector (312) has a notch (3122) on the periphery near the male connector (311) for leakage to flow out.

16. The liquid cooling system according to claim 15, characterized in that, The bottom of the female connector (312) is surrounded by a chamfered surface (3121), which is inclined from the outer periphery of the bottom of the female connector (312) toward the center and toward the water distributor (4) to form a water storage tank (47) between the upper surface of the female connector (312) and the water distributor (4); the diversion channel (43) extends from the detection channel (42) to the water storage tank (47).

17. The liquid cooling system according to claim 13, characterized in that, The bottom inner side of the water distributor (4) is also provided with several flow guiding reinforcing ribs (45), and the position of the flow guiding reinforcing ribs (45) corresponds to the position of the water inlet (411).

18. The liquid cooling system according to claim 17, characterized in that, The arrangement direction of each of the flow guiding reinforcing ribs (45) is parallel to the arrangement direction of each of the connecting ports (41) and they are evenly arranged. The extension direction of each flow guiding reinforcing rib (45) is perpendicular to the arrangement direction of each of the connecting ports (41) so as to form a flow channel between adjacent flow guiding reinforcing ribs (45). The cooling medium flows through the flow channel to the connecting port (41).

19. The liquid cooling system according to claim 17, characterized in that, The bottom inner side of the water distribution device (4) is also provided with several reinforcing ribs (46), and the reinforcing ribs (46) correspond to the position of the return water connection port (412).

20. An electronic device, comprising a liquid cooling system, characterized in that, The liquid cooling system is the liquid cooling system according to any one of claims 8 to 19.

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