CN113884251A - Liquid cooling heat dissipation leakage detection device and method - Google Patents
Liquid cooling heat dissipation leakage detection device and method Download PDFInfo
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- CN113884251A CN113884251A CN202110996711.9A CN202110996711A CN113884251A CN 113884251 A CN113884251 A CN 113884251A CN 202110996711 A CN202110996711 A CN 202110996711A CN 113884251 A CN113884251 A CN 113884251A
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- 239000007788 liquid Substances 0.000 title claims abstract description 163
- 238000001514 detection method Methods 0.000 title claims abstract description 131
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 67
- 238000001816 cooling Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title abstract description 10
- 230000006698 induction Effects 0.000 claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 239000011247 coating layer Substances 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 description 6
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- 230000008859 change Effects 0.000 description 2
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- 238000004804 winding Methods 0.000 description 2
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- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/182—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for tubes
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Abstract
The invention discloses a liquid cooling heat dissipation leakage detection device and a method, wherein the liquid cooling heat dissipation leakage detection device comprises a leakage induction line, a leakage detection circuit, a leakage detection controller, an alarm and a display screen; the leakage induction line is spirally wound on the cooling pipeline; the outer layer of the leakage induction line is a water absorption coating layer, and a metal lead is arranged in the leakage induction line; the liquid leakage sensing wire is electrically connected with the liquid leakage detection circuit, the liquid leakage detection circuit is electrically connected with the liquid leakage detection controller, and the liquid leakage detection controller is respectively electrically connected with the alarm, the display screen and the server power supply; when liquid leaks, the liquid is immersed into the liquid leakage induction line, the liquid leakage induction line is connected, a liquid leakage detection circuit detects a liquid leakage induction line connection signal and transmits the liquid leakage induction line connection signal to the liquid leakage detection controller, the liquid leakage detection controller controls the alarm to give an alarm, meanwhile, the alarm information is displayed on the display screen, and the server power supply is switched off. The invention adopts the leakage induction line to detect the leakage situation, the deployment is not limited by the environmental limit, the cost is low, the technology is simple and easy to realize, and the reliability and the safety of liquid cooling heat dissipation are improved.
Description
Technical Field
The invention relates to the field of liquid-cooling heat dissipation liquid leakage detection, in particular to a liquid-cooling heat dissipation liquid leakage detection device and method.
Background
With the increasing demand on the server, the heat dissipation power of the server is increased. In order to dissipate heat for the server, a common heat dissipation mode is air-cooled heat dissipation and liquid-cooled heat dissipation, and along with the improvement of heat dissipation power of the server, the heat dissipation effect of the air-cooled heat dissipation is not ideal, and the liquid-cooled heat dissipation becomes a more mainstream heat dissipation mode. Liquid cooling heat dissipation utilizes the pump to make the coolant liquid circulation in the cooling pipeline and dispel the heat, and wherein the coolant liquid adopts water usually, has electric conductivity, once the cooling pipeline takes place the weeping, the coolant liquid leaks and immerses the risk that the server will damage electrical components. Therefore, the liquid leakage condition of liquid cooling heat dissipation needs to be monitored in real time, and the alarm and the power off are timely given when the liquid leakage occurs. At present, the detection belt with the sensor is used for detecting leakage during most of leakage detection, and the method is greatly influenced by the performance and the environment of the sensor, and has higher cost and more complex technology.
Disclosure of Invention
In order to solve the problems, the invention provides a liquid cooling heat dissipation leakage detection device and method, which adopt a leakage induction line to detect leakage conditions, are free from environmental limit in deployment, have low cost and simple and easily realized technology, and improve the reliability and safety of liquid cooling heat dissipation.
In a first aspect, the technical scheme of the invention provides a liquid cooling heat dissipation leakage detection device, which comprises a leakage induction line, a leakage detection circuit, a leakage detection controller, an alarm and a display screen;
the leakage induction line is spirally wound on the cooling pipeline; the outer layer of the leakage induction line is a water absorption coating layer, and a metal lead is arranged in the leakage induction line;
the liquid leakage sensing wire is electrically connected with the liquid leakage detection circuit, the liquid leakage detection circuit is electrically connected with the liquid leakage detection controller, and the liquid leakage detection controller is respectively electrically connected with the alarm, the display screen and the server power supply; when liquid leaks, the liquid is immersed into the liquid leakage induction line, the liquid leakage induction line is connected, a liquid leakage detection circuit detects a liquid leakage induction line connection signal and transmits the liquid leakage induction line connection signal to the liquid leakage detection controller, the liquid leakage detection controller controls the alarm to give an alarm, meanwhile, the alarm information is displayed on the display screen, and the server power supply is switched off.
Further, the liquid leakage detection circuit comprises a resistor R0, a resistor R1, a resistor R2, a capacitor C1 and a voltage comparator U1;
the first end of the resistor R2 is connected with a power supply voltage, and the second end of the resistor R0 is connected with the first end of the resistor R0 through a leakage induction line; the second end of the resistor R0 is grounded; the resistor R1 is connected with the resistor R0 in parallel, and the capacitor C1 is connected with the resistor R1 in parallel;
the node between the resistor R2 and the resistor R0 is connected to the negative input end of the voltage comparator U1, the positive input end of the voltage comparator U1 is connected to the reference voltage, and the output end of the voltage comparator U1 is connected to the leakage detection controller.
Further, the liquid leakage detection circuit further comprises an inverter U2;
the output end of the voltage comparator U1 is connected with the leakage detection controller through an inverter U2.
Further, the leakage detection controller comprises a CPLD chip and a BMC chip;
the output end of the leakage detection circuit is electrically connected with the input end of the CPLD chip, and the output end of the CPLD chip is electrically connected with the input end of the BMC chip;
the output end of the BMC chip is electrically connected with the alarm, the display screen and the server power supply respectively.
Further, the leakage detection controller further comprises an electronic switch; the electronic switch is connected with the CPLD chip;
the output end of the BMC chip is also electrically connected with the input end of the CPLD chip, the BMC chip sends the test signal to the CPLD chip, the CPLD chip closes the electronic switch according to the test signal, and if the alarm is normal, the CPLD chip sends the analog alarm signal to the BMC chip after the electronic switch is closed.
Further, the electronic switch is a MOS tube.
Furthermore, the leakage induction line comprises at least two sections, and the two adjacent sections of leakage induction lines are connected through a male connector and a female connector.
Furthermore, the outer layer of the water-absorbing coating layer of the leakage induction line is made of nylon.
Furthermore, the device also comprises a woven net pipe which is sleeved on the liquid cooling pipeline.
In a second aspect, a technical solution of the present invention provides a liquid cooling heat dissipation leakage detection method, including the following steps:
when liquid cooling heat dissipation is normal, the liquid leakage induction line is disconnected, and the liquid leakage detection circuit outputs a first level signal to the liquid leakage detection controller;
when liquid leakage occurs in liquid cooling heat dissipation, the liquid is immersed into the leakage induction line, the leakage induction line is connected, the leakage detection circuit outputs a second level signal to the leakage detection controller, the leakage detection controller controls the alarm to give an alarm, meanwhile, the alarm information is displayed on the display screen, and the power supply of the server is turned off.
Compared with the prior art, the liquid cooling heat dissipation leakage detection device and method provided by the invention have the following beneficial effects: the liquid leakage detection circuit comprises a cooling pipeline, a liquid leakage sensing line, a liquid leakage detection circuit and a liquid leakage detection circuit, wherein the liquid leakage sensing line is wound on the cooling pipeline, the liquid leakage sensing line is connected into the liquid leakage detection circuit, the liquid leakage sensing line is in an off state when liquid leakage does not occur, the liquid leakage detection circuit outputs a first level signal, liquid is immersed into the liquid leakage sensing line when liquid leakage occurs to enable the liquid leakage sensing line to be connected, and the liquid leakage detection circuit outputs a second level signal at the moment. And the liquid leakage detection controller judges whether liquid leakage occurs according to the change of the level signal output by the liquid leakage detection circuit, and timely alarms and turns off the power supply of the server when sending the liquid leakage. The invention adopts the leakage induction line to detect the leakage situation, the deployment is not limited by the environmental limit, the cost is low, the technology is simple and easy to realize, and the reliability and the safety of liquid cooling heat dissipation are improved.
Drawings
For a clearer explanation of the embodiments or technical solutions of the prior art of the present application, the drawings needed for the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a liquid cooling heat dissipation leakage detection device according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram illustrating a winding manner of a leakage sensing wire according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a liquid leakage detection circuit according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a liquid cooling heat dissipation leakage detection method according to a second embodiment of the present invention.
In the figure, 100-leakage induction line, 200-leakage detection circuit, 300-leakage detection controller, 301-CPLD chip, 302-BMC chip, 303-electronic switch, 400-alarm, 500-display screen, 600-server power supply, 700-cooling pipeline, R0, R1, R2-resistor, C1-capacitor, U1-power comparator, U2-inverter and Uref-reference voltage.
Detailed Description
The following explains the english terms related to the present invention.
CPLD: complex Programmable logic device.
BMC: basebard Manager Controller, substrate management Controller.
PSU: power supply unit.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
With the increasing demand on the server, the heat dissipation power of the server is increased. In order to dissipate heat for the server, a common heat dissipation mode is air-cooled heat dissipation and liquid-cooled heat dissipation, and along with the improvement of heat dissipation power of the server, the heat dissipation effect of the air-cooled heat dissipation is not ideal, and the liquid-cooled heat dissipation becomes a more mainstream heat dissipation mode. Liquid cooling heat dissipation utilizes the pump to make the coolant liquid circulation in the cooling pipeline and dispel the heat, and wherein the coolant liquid adopts water usually, has electric conductivity, once the cooling pipeline takes place the weeping, the coolant liquid leaks and immerses the risk that the server will damage electrical components. Therefore, the liquid leakage condition of liquid cooling heat dissipation needs to be monitored in real time, and the alarm and the power off are timely given when the liquid leakage occurs. At present, the detection belt with the sensor is used for detecting leakage during most of leakage detection, and the method is greatly influenced by the performance and the environment of the sensor, and has higher cost and more complex technology.
Therefore, the invention provides a liquid cooling heat dissipation leakage detection scheme, which adopts the leakage induction line 100 to detect the leakage situation, is free from environmental limit in deployment, has low cost and simple and easily realized technology, and improves the reliability and safety of liquid cooling heat dissipation.
Example one
Fig. 1 is a schematic block diagram of a structure of a liquid cooling heat dissipation leakage detection device provided in this embodiment, and the liquid cooling heat dissipation leakage detection device includes a leakage sensing line 100, a leakage detection circuit 200, a leakage detection controller 300, an alarm 400, and a display screen 500.
As shown in fig. 2, which is a schematic structural diagram illustrating a winding manner of the leakage sensing wire 100, the leakage sensing wire 100 is spirally wound on the cooling pipeline 700 to detect a leakage situation at any position on the cooling pipeline 700. The outer layer of the leakage induction line 100 is a water absorption coating layer, and a metal lead is arranged in the leakage induction line. The water absorption coating layer has a water absorption function, so that liquid can be effectively absorbed into the leakage induction line 100 when leakage occurs, and the detection reliability is improved. Under normal conditions, the built-in metal wire is in an off state, when liquid leakage occurs, the liquid is immersed in the liquid leakage induction wire 100, and the liquid has a conductive effect, so that the internal metal wire is connected. During the concrete implementation, the outer layer of weeping induction line 100 coating that absorbs water is the nylon material, has good water absorption function, can in time effectively adsorb the weeping and dip in inside the weeping induction line 100. Specifically, the outer diameter of the leakage induction line 100 is 1.6mm, the outer layer is made of nylon, the maximum working temperature is 160 ℃, and the leakage induction line can isolate dust and metal interference. Considering that the cooling pipeline 700 is long, the leakage induction lines 100 are arranged in at least two sections, and the adjacent two sections of leakage induction lines 100 are connected through a male-female connector. In order to prevent the leakage sensing wire 100 from falling off and wearing, the present embodiment provides a woven mesh tube on the cooling pipeline 700.
The liquid leakage induction line 100 is electrically connected with the liquid leakage detection circuit 200, the liquid leakage detection circuit 200 is electrically connected with the liquid leakage detection controller 300, and the liquid leakage detection controller 300 is respectively electrically connected with the alarm 400, the display screen 500 and the server power supply; when liquid leaks, the liquid is immersed in the leakage induction line 100, the leakage induction line 100 is connected, the leakage detection circuit 200 detects a connection signal of the leakage induction line 100 and transmits the connection signal to the leakage detection controller 300, the leakage detection controller 300 controls the alarm 400 to alarm, and meanwhile, the alarm information is displayed on the display screen 500, and the server power supply 600 is switched off.
When no liquid leakage occurs, the liquid leakage detection circuit 200 outputs a first level signal, when liquid leakage occurs, the liquid leakage detection circuit 200 outputs a second level signal, and when the second level signal is output, a connection signal of the liquid leakage induction line 100 is detected.
In the liquid cooling heat dissipation leakage detection device provided by the embodiment, the leakage sensing line 100 is wound on the cooling pipeline 700, meanwhile, the leakage sensing line 100 is connected to the leakage detection circuit 200, when leakage does not occur, the leakage sensing line 100 is in an off state, the leakage detection circuit 200 outputs a first level signal, when leakage occurs, liquid is immersed into the leakage sensing line 100 to enable the leakage sensing line 100 to be connected, and at the moment, the leakage detection circuit 200 outputs a second level signal. The leakage detection controller 300 judges whether leakage occurs according to the change of the level signal output by the leakage detection circuit 200, and timely alarms and turns off the server power supply 600 when leakage is sent. The device adopts the leakage induction line 100 to detect the leakage condition, the arrangement is not limited by the environmental limit value, the cost is low, the technology is simple and easy to realize, and the reliability and the safety of liquid cooling heat dissipation are improved.
As shown in fig. 3, which is a schematic structural diagram of the liquid leakage detecting circuit 200 of the present embodiment, in order to implement liquid leakage monitoring, the liquid leakage detecting circuit 200 of the present embodiment includes a resistor R0, a resistor R1, a resistor R2, a capacitor C1, and a voltage comparator U1.
The first end of the resistor R2 is connected with a power supply voltage, and the second end is connected with the first end of the resistor R0 through a leakage induction line 100; the second end of the resistor R0 is grounded; the resistor R1 is connected with the resistor R0 in parallel, and the capacitor C1 is connected with the resistor R1 in parallel; the node between the resistor R2 and the resistor R0 is connected to the negative input end of the voltage comparator U1, the positive input end of the voltage comparator U1 is connected to the reference voltage Uref, and the output end of the voltage comparator U1 is connected to the leakage detection controller 300.
Under the normal state, the liquid leakage sensing line 100 is disconnected, the resistance value is equivalent to infinity, and the resistance value of the circuit connected to the lower end of the resistor R2 is equivalent to the resistance value of the resistor R1; when liquid leakage occurs, the liquid leakage sensing wire 100 is connected, namely the resistor R0 is connected into a circuit, and the resistance value of the circuit connected to the lower end of the resistor R2 is equal to the parallel resistance value of the resistor R1 and the resistor R0. It should be noted that the resistance value of the resistor R1 is greater than the resistance value of the resistor R0. Under a normal state, the resistance value of the access circuit is the resistance value of the resistor R1, at this time, the voltage value of the negative input end of the access voltage comparator U1 is larger than the reference voltage value of the positive input end of the voltage comparator U1, and the voltage comparator U1 outputs a low level. When liquid leakage occurs, the resistance value of the access circuit is the parallel resistance value of the resistor R1 and the resistor R0, the voltage value of the negative input end of the access voltage comparator U1 is smaller and lower than the reference voltage value of the positive input end of the voltage comparator U1, and the voltage comparator U1 outputs high level. The output level of the voltage comparator U1 changes during normal and leakage conditions, causing the leakage detection controller 300 to detect an alarm signal.
For the convenience of detection, the leakage detection circuit 200 of the present embodiment further includes an inverter U2, and the output terminal of the voltage comparator U1 is connected to the leakage detection controller 300 through the inverter U2. That is, in the normal state, the voltage comparator U1 outputs a low level, and the inverter U2 outputs a high level to the leakage detection controller 300. When liquid leakage occurs, the voltage comparator U1 outputs a high level, and the inverter U2 outputs a low level to the liquid leakage detection controller 300. When the liquid leakage detection controller 300 detects a low level, the liquid leakage condition is determined, at this time, the alarm 400 is controlled to alarm, an alarm signal is displayed on the display screen 500, and the server power supply 600 is controlled to be turned off to prevent accidents. Wherein powering off the server power supply 600 refers to turning off the PSU of the server.
In order to save cost and facilitate design, the controller 300 for detecting leakage in this embodiment uses a server, and the controller 300 for detecting leakage specifically includes a CPLD chip 301 and a BMC chip 302. The output end of the leakage detection circuit 200 is electrically connected with the input end of the CPLD chip 301, and the output end of the CPLD chip 301 is electrically connected with the input end of the BMC chip 302; the output end of the BMC chip 302 is electrically connected to the alarm 400, the display screen 500, and the server power supply 600, respectively.
The CPLD chip 301 has the functions of removing jitter and filtering noise for signals, when leakage occurs, the leakage detection circuit 200 detects an alarm signal, the CPLD chip 301 recognizes the alarm signal and transmits the alarm signal to the BMC chip 302, the BMC chip 302 controls the alarm 400 to alarm, leakage information is displayed on a Web interface and reported to operation and maintenance personnel in time, and the BMC chip 302 sends a power-off protection signal to the PSU.
Since the CPLD chip 301 sends the alarm signal to the BMC chip 302, in order to ensure that the alarm signal can be sent normally, this embodiment further sets an analog alarm mechanism to detect whether the alarm is normal. Specifically, the leakage detection controller 300 further includes an electronic switch 303; the electronic switch 303 is connected to the CPLD chip 301. The output end of the BMC chip 302 is also electrically connected with the input end of the CPLD chip 301, the BMC chip 302 sends a test signal to the CPLD chip 301, the CPLD chip 301 closes the electronic switch 303 according to the test signal, and if the alarm is normal, the CPLD chip 301 sends an analog alarm signal to the BMC chip 302 after the electronic switch 303 is closed.
In a specific implementation, the electronic switch 303 may be a MOS transistor.
Example two
The second embodiment provides a liquid cooling heat dissipation liquid leakage detection method, which is implemented based on the liquid cooling heat dissipation liquid leakage detection device of the first embodiment.
Fig. 4 is a schematic flow chart of a liquid cooling heat dissipation leakage detection method according to the second embodiment, which includes the following steps.
S101, when liquid cooling heat dissipation is normal, the liquid leakage induction line 100 is disconnected, and the liquid leakage detection circuit 200 outputs a first level signal to the liquid leakage detection controller 300;
s102, when liquid leakage occurs in liquid cooling heat dissipation, the liquid is immersed in the leakage induction line 100, the leakage induction line 100 is connected, the leakage detection circuit 200 outputs a second level signal to the leakage detection controller 300, the leakage detection controller 300 controls the alarm 400 to give an alarm, meanwhile, alarm information is displayed on the display screen 500, and the server power supply 600 is turned off.
In a specific embodiment, the first level signal is at a high level, and the second level signal is at a low level.
The liquid-cooling heat dissipation liquid leakage detection method of the present embodiment is based on the aforementioned liquid-cooling heat dissipation liquid leakage detection device, and therefore, the specific implementation manner of the method can be seen in the foregoing embodiments of the liquid-cooling heat dissipation liquid leakage detection device, and therefore, the specific implementation manner of the method can refer to the description of the corresponding embodiments of each part, and is not further described herein.
In addition, since the liquid-cooling heat dissipation liquid leakage detection method of the present embodiment is implemented based on the aforementioned liquid-cooling heat dissipation liquid leakage detection device, the function of the liquid-cooling heat dissipation liquid leakage detection method corresponds to that of the aforementioned device, and is not described herein again.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A liquid cooling heat dissipation leakage detection device is characterized by comprising a leakage induction line, a leakage detection circuit, a leakage detection controller, an alarm and a display screen;
the leakage induction line is spirally wound on the cooling pipeline; the outer layer of the leakage induction line is a water absorption coating layer, and a metal lead is arranged in the leakage induction line;
the liquid leakage sensing wire is electrically connected with the liquid leakage detection circuit, the liquid leakage detection circuit is electrically connected with the liquid leakage detection controller, and the liquid leakage detection controller is respectively electrically connected with the alarm, the display screen and the server power supply; when liquid leaks, the liquid is immersed into the liquid leakage induction line, the liquid leakage induction line is connected, a liquid leakage detection circuit detects a liquid leakage induction line connection signal and transmits the liquid leakage induction line connection signal to the liquid leakage detection controller, the liquid leakage detection controller controls the alarm to give an alarm, meanwhile, the alarm information is displayed on the display screen, and the server power supply is switched off.
2. The liquid-cooled heat dissipation leakage detection device of claim 1, wherein the leakage detection circuit comprises a resistor R0, a resistor R1, a resistor R2, a capacitor C1 and a voltage comparator U1;
the first end of the resistor R2 is connected with a power supply voltage, and the second end of the resistor R0 is connected with the first end of the resistor R0 through a leakage induction line; the second end of the resistor R0 is grounded; the resistor R1 is connected with the resistor R0 in parallel, and the capacitor C1 is connected with the resistor R1 in parallel;
the node between the resistor R2 and the resistor R0 is connected to the negative input end of the voltage comparator U1, the positive input end of the voltage comparator U1 is connected to the reference voltage, and the output end of the voltage comparator U1 is connected to the leakage detection controller.
3. The liquid-cooled heat sink leakage detector apparatus of claim 2, wherein the leakage detection circuit further comprises an inverter U2;
the output end of the voltage comparator U1 is connected with the leakage detection controller through an inverter U2.
4. The liquid-cooled heat dissipation leakage detection device of claim 1, 2 or 3, wherein the leakage detection controller comprises a CPLD chip and a BMC chip;
the output end of the leakage detection circuit is electrically connected with the input end of the CPLD chip, and the output end of the CPLD chip is electrically connected with the input end of the BMC chip;
the output end of the BMC chip is electrically connected with the alarm, the display screen and the server power supply respectively.
5. The liquid-cooled heat dissipation leak detection apparatus of claim 4, wherein the leak detection controller further comprises an electronic switch; the electronic switch is connected with the CPLD chip;
the output end of the BMC chip is also electrically connected with the input end of the CPLD chip, the BMC chip sends the test signal to the CPLD chip, the CPLD chip closes the electronic switch according to the test signal, and if the alarm is normal, the CPLD chip sends the analog alarm signal to the BMC chip after the electronic switch is closed.
6. The liquid-cooled heat dissipation leakage detector apparatus of claim 5, wherein the electronic switch is a MOS transistor.
7. The liquid-cooled heat dissipation leakage detection device of claim 1, 2 or 3, wherein the leakage sensing wire comprises at least two sections, and two adjacent sections of leakage sensing wires are connected through a male-female connector.
8. The liquid-cooled heat dissipation leakage detector of claim 7, wherein the water-absorbing coating layer of the outer layer of the leakage sensing line is made of nylon.
9. The liquid-cooled heat dissipation weep detection device of claim 8, further comprising a woven mesh tube that is threaded over the liquid-cooled conduit.
10. A liquid cooling heat dissipation leakage detection method is characterized by comprising the following steps:
when liquid cooling heat dissipation is normal, the liquid leakage induction line is disconnected, and the liquid leakage detection circuit outputs a first level signal to the liquid leakage detection controller;
when liquid leakage occurs in liquid cooling heat dissipation, the liquid is immersed into the leakage induction line, the leakage induction line is connected, the leakage detection circuit outputs a second level signal to the leakage detection controller, the leakage detection controller controls the alarm to give an alarm, meanwhile, the alarm information is displayed on the display screen, and the power supply of the server is turned off.
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| CN114935434A (en) * | 2022-04-06 | 2022-08-23 | 中国电子科技集团公司第二十九研究所 | End connector, film type leakage detection device and leakage detection method |
| CN115950608A (en) * | 2023-02-22 | 2023-04-11 | 苏州浪潮智能科技有限公司 | Liquid leakage detection circuit, liquid leakage detection system, liquid leakage detection method, electronic device, and storage medium |
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