Voltage monitoring device of liquid cooling induction line
By designing a voltage monitoring device for the liquid-cooled induction line, liquid leakage and short-term situations are detected in real time and alarms are issued, the liquid leakage and short-term problems in liquid heat dissipation solutions are solved, ensuring the safety and reliability of the equipment.
Patent Information
- Application Number
- CN202323609433.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The liquid heat dissipation solution has abnormal situations such as liquid leakage and short-term lines in large equipment, which causes corrosion and short-circuiting of the circuit board and other components of the equipment, affecting the stability and life of the equipment.
Design a voltage monitoring device for liquid-cooled induction wire, including a power management module, a microcontroller, an alarm prompt module, a liquid leakage detection module and a short-term detection module. By monitoring the voltage value of the liquid-cooled induction wire in real time, detecting liquid leakage and short-term conditions, and issuing an alarm to close the liquid input device and power supply device.
It can detect abnormal situations such as liquid leakage and short-term conditions in the equipment in a timely manner, issue an alarm, prevent liquid leakage from being continuously input, and simultaneously turn off the power supply power and electronic equipment to avoid damage to internal components of the equipment and ensure the safety and reliability of the equipment.
Smart Images
Figure CN222618125U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of liquid cooling and heat dissipation, and relates to a monitoring device, and in particular to a voltage monitoring device for a liquid cooling induction line. Background Art
[0002] As the performance of electronic devices such as CPU, GPU, and memory continues to improve, their power consumption also increases. In order to ensure the stable operation of the equipment and extend its life, heat dissipation needs to become particularly important. High-performance electronic devices generate a lot of heat during operation, and effective heat dissipation is required to keep the temperature within an acceptable range to prevent overheating from causing equipment damage or performance degradation.
[0003] Traditional heat dissipation methods mainly use air cooling solutions, which use fans to exhaust hot air outside the device to achieve the purpose of heat dissipation. However, for large devices such as servers, storage devices, switches, etc., the difficulty of using air cooling solutions will be greatly increased because these devices generate a lot of heat, and traditional air cooling methods often cannot meet their heat dissipation needs.
[0004] In contrast, liquid cooling has a better cooling effect. Liquid has a higher thermal conductivity and can take away the heat generated by the device more quickly. In addition, liquid is flowing and can transfer heat to a place far away from the device through pipes and other devices, effectively reducing the temperature of the device. Therefore, liquid cooling has been widely used in large-scale equipment.
[0005] However, the liquid cooling solution also has some technical defects. For example, due to long-term use of the device or improper installation, the liquid in the conduit may leak, causing the liquid to enter the inside of the device. This will cause corrosion and short circuit risks to the circuit boards and other components inside the device, seriously affecting the stability and life of the device. Summary of the invention
[0006] The purpose of the present application is to provide a voltage monitoring device for a liquid-cooled induction line, which is used to timely detect abnormal conditions such as leakage and short circuit inside the equipment and issue an alarm.
[0007] The present application provides a voltage monitoring device for a liquid-cooled induction line, comprising: a power management module, used to obtain a high-voltage power supply from a power supply device, convert the high-voltage power supply into a low-voltage power supply, and store the low-voltage power supply; a single-chip computer, comprising a voltage sampling module and an alarm generation module, wherein the voltage sampling module is used to obtain a voltage value of a second pin of a liquid-cooled induction line based on the low-voltage power supply, and the first pin of the liquid-cooled induction line is grounded; the alarm generation module is used to compare the voltage value with a preset normal value, and when the voltage value is greater than the preset normal value, a first alarm signal is generated, and when the voltage value is less than the preset normal value, a first alarm signal is generated. When the preset normal value is reached, a second alarm signal is generated; an alarm prompt module is used to issue an alarm prompt based on the first alarm signal or the second alarm signal; a leakage detection module is used to compare the voltage value of the second pin of the liquid cooling sensing line with a first reference voltage, and output a leakage alarm signal when the voltage value is less than the first reference voltage; the leakage alarm signal is used to shut down the liquid input device and the power supply device; a short line detection module is used to compare the voltage value of the second pin of the liquid cooling sensing line with a second reference voltage, and output a short line alarm signal to the host computer when the voltage value is greater than the second reference voltage.
[0008] In one embodiment of the present application, the power management module includes a power module and a super capacitor; the power module is used to obtain high-voltage power from a power supply device and convert the high-voltage power into a low-voltage power; the super capacitor is connected to the power module to store the low-voltage power and provide temporary power support when the power module is not working.
[0009] In one embodiment of the present application, the voltage sampling module includes an analog-to-digital converter; the analog-to-digital converter is connected to the second pin of the liquid cooling sensing line through a first connector, and the connection node is point C, which is used to collect the analog voltage signal at point C and convert the analog voltage signal into a digital voltage signal.
[0010] In one embodiment of the present application, the preset normal value is the voltage value at point C corresponding to the resistance value of the liquid cooling sensing line when the leakage amount is equal to 0.
[0011] In one embodiment of the present application, the single chip microcomputer also includes a leakage amount conversion module; the leakage amount conversion module is used to convert the digital voltage signal into leakage amount according to a comparison relationship table between the leakage amount, the resistance value of the liquid cooling sensing line and the voltage value at point C.
[0012] In one embodiment of the present application, a register is further included; the register is connected to the leakage amount conversion module and is used to record the leakage amount.
[0013] In one embodiment of the present application, the alarm prompt module includes a buzzer and an alarm indicator light; the buzzer is used to emit a buzzing sound based on the first alarm signal or the second alarm signal; the alarm indicator light is used to flash based on the first alarm signal and stay on based on the second alarm signal.
[0014] In one embodiment of the present application, the liquid leakage detection module includes a first comparator; the positive input terminal of the first comparator is used to input the first reference voltage, the reverse input terminal is used to input the voltage value of the second pin of the liquid cooling sensing line, and the output terminal is used to output the liquid leakage alarm signal to the liquid input device and the power supply device when the voltage value of the second pin of the liquid cooling sensing line is less than the first reference voltage.
[0015] In one embodiment of the present application, the short line detection module includes a second comparator; the positive input terminal of the second comparator is used to input the voltage value of the second pin of the liquid cooling sensing line, the reverse input terminal is used to input the second reference voltage, and the output terminal is used to output the short line alarm signal to the host computer when the voltage value is greater than the second reference voltage.
[0016] In one embodiment of the present application, the output end of the second comparator is connected to the liquid input device and the power supply device respectively through a control end connector.
[0017] As described above, the voltage monitoring device for the liquid-cooled induction line described in the present application has the following beneficial effects:
[0018] (1) Ability to detect abnormal conditions such as liquid leakage and short circuit in the equipment in time and issue an alarm;
[0019] (2) After a liquid leak occurs, the liquid input device can be immediately closed to prevent the liquid from continuing to be input and causing leakage, and the power supply and electronic equipment can be turned off simultaneously to avoid damage to the circuit boards and other components inside the equipment, thereby ensuring the safety and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 Shown is a schematic structural diagram of a liquid cooling system of the present application in one embodiment.
[0021] Figure 2 Shown is a schematic structural diagram of a voltage monitoring device for a liquid-cooled induction line described in the present application in one embodiment.
[0022] Figure 3 Shown is a circuit schematic diagram of a voltage monitoring device for a liquid-cooled sensing line described in the present application in one embodiment.
[0023] Component number description
[0024] 1 Liquid input device
[0025] 2 Liquid-cooled induction lines
[0026] 3 Power supply device
[0027] 4 Electronic devices
[0028] 5 Voltage monitoring device for liquid-cooled induction lines
[0029] 51 Power Management Module
[0030] 52 MCU
[0031] 521 Voltage Sampling Module
[0032] 522 Alarm generation module
[0033] 53 Alarm prompt module
[0034] 54 Leakage detection module
[0035] 55 Short line detection module
[0036] 6 Host computer DETAILED DESCRIPTION
[0037] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.
[0038] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.
[0039] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0040] See also Figure 1 , which is a schematic diagram of the structure of the liquid cooling system of the present application in one embodiment.
[0041] like Figure 1 As shown, the liquid cooling system includes modules such as a liquid input device 1, a liquid cooling induction line 2, a power supply device 3, an electronic device 4 and a voltage monitoring device 5 for the liquid cooling induction line.
[0042] The liquid input device 1 is an input port for liquid, and is connected to the electronic device 4 through a liquid conduit. The liquid conduit may be a hose or a pipe, and its function is to transport the liquid from the liquid input device 1 to the electronic device 4, and also to return the liquid from the electronic device 4 to the liquid input device 1. In practical applications, the liquid input device 1 may include valves, connectors or other control devices to ensure that the liquid can be accurately and safely transported to the inside of the electronic device 4.
[0043] The liquid cooling sensing line 2 is a resistive sensor for monitoring liquid leakage, which is usually tied to the liquid conduit so as to sense the leakage at the first time. The liquid cooling sensing line 2 includes a first pin "①" and a second pin "②", wherein the first pin "①" is grounded and the second pin "②" is a monitoring point. When there is liquid leakage around, the resistance (RL) of the liquid cooling sensing line will change, and then the voltage value of the second pin of the liquid cooling sensing line will change.
[0044] Specifically, the amount of liquid leakage is inversely proportional to the resistance (RL) of the liquid-cooled sensing line, that is, the greater the amount of liquid leakage, the smaller the resistance (RL) of the liquid-cooled sensing line will be. The minimum detection amount of the liquid-cooled sensing line is 0.1 mL of liquid. As shown in Table 1, in the absence of liquid leakage, the resistance (RL) of the liquid-cooled sensing line is 750 KΩ, so 750 KΩ is defined as the standard resistance value. However, when the liquid leaks 0.1 mL, the resistance (RL) of the liquid-cooled sensing line will become 180 KΩ.
[0045] Table 1. Comparison between the resistance value of the liquid cooling induction line and the amount of leakage
[0046]
[0047]
[0048] In this implementation, by real-time monitoring of the voltage value change of the second pin of the liquid cooling sensing line, the leakage inside the device can be indirectly determined, and the amount of leaked liquid can be accurately measured, providing an important guarantee for the safe operation of the device.
[0049] The power supply device 3 is used to provide a 24V high voltage power supply, and is connected to the electronic device 4 and the voltage monitoring device 5 of the liquid cooling induction line through power lines.
[0050] Specifically, the power cord can be a cable or a wire, one end of which is connected to the output end of the power supply device 3, and the other end is respectively connected to the power interface of the electronic device 4 and the voltage monitoring device 5 of the liquid cooling induction line. Its function is to transmit the 24V high-voltage power from the power supply device 3 to the electronic device 4 and the voltage monitoring device 5 of the liquid cooling induction line.
[0051] The electronic device 4 may be a server, a storage device or a switch. Other devices that require liquid cooling are also applicable to the present application and are not listed here one by one.
[0052] The following embodiments of the present application provide a voltage monitoring device 5 for a liquid cooling induction line, which is responsible for monitoring whether there is liquid leakage in the electronic device 4, and when liquid leakage is detected, controls the liquid input device 1 and the power supply device 3 to be turned off. The technical solution in the embodiments of the present application will be described in detail below in conjunction with the drawings in the embodiments of the present application.
[0053] See also Figure 2 , which is a schematic diagram of the structure of a voltage monitoring device for a liquid-cooled induction line described in the present application in one embodiment.
[0054] like Figure 2 As shown, this embodiment provides a voltage monitoring device 5 for a liquid-cooled induction line, including a power management module 51 , a single-chip computer 52 , an alarm prompt module 53 , a liquid leakage detection module 54 and a short-line detection module 55 .
[0055] In one embodiment of the present application, the power management module 51 is used to obtain high-voltage power from the power supply device 3, convert the high-voltage power into low-voltage power, and store the low-voltage power.
[0056] See also Figure 3 , which is a circuit schematic diagram of a voltage monitoring device for a liquid-cooled induction line described in the present application in one embodiment.
[0057] Specifically, Figure 3As shown, the power management module 51 includes a power module and a super capacitor. The power module is used to obtain high-voltage power from the power supply device 3 and convert the high-voltage power into a low-voltage power. The super capacitor is connected to the power module to store the low-voltage power and provide temporary power support when the power module is not working.
[0058] The power module is provided with a power interface "③", which is connected to the power supply module 3 through a power line and is used to input a 24V high voltage power supply. The power module is also used to convert the 24V high voltage power supply into a 3.3V low voltage power supply to ensure stable operation of the single chip computer 52.
[0059] When the power is suddenly cut off or the power module does not work, the super capacitor will release the stored charge to supply the single chip computer 52 to ensure that the single chip computer 52 can continue to work. This design can provide a certain stability and reliability to prevent the single chip computer from accidentally shutting down or losing data when the power is suddenly interrupted.
[0060] In one embodiment of the present application, the single chip computer 52 is the main control of the voltage monitoring device 5 of the liquid cooling induction line, including a voltage sampling module 521 and an alarm generation module 522. The voltage sampling module 521 is used to obtain the voltage value of the second pin of the liquid cooling induction line based on the low voltage power supply. The alarm generation module 522 is used to compare the voltage value with a preset normal value, and when the voltage value is greater than the preset normal value, a first alarm signal is generated, and when the voltage value is less than the preset normal value, a second alarm signal is generated.
[0061] Specifically, the voltage sampling module 521 includes an analog-to-digital converter (ADC). The analog-to-digital converter is connected to the second pin of the liquid cooling induction line through a first connector, and the connection node is point C, and is used to collect the analog voltage signal at point C and convert the analog voltage signal into a digital voltage signal.
[0062] The preset normal value is the voltage value at point C corresponding to the resistance value of the liquid cooling sensing line when the leakage amount is equal to 0. As shown in Table 2, when there is no liquid leakage (i.e., the leakage amount is equal to 0), the liquid cooling sensing line and the voltage monitoring device of the liquid cooling sensing line are normally connected (i.e., the first pin of the liquid cooling sensing line is grounded, and the second pin is electrically connected to the first connector), and the resistance (RL) of the liquid cooling sensing line is 750KΩ. Since the first voltage divider resistor (R1) is 10KΩ and the connected power supply is 3.3V, the voltage value obtained by voltage division at point C is 3.25V. Therefore, the preset normal value can be set to 3.25V.
[0063] Table 2. Comparison table of leakage amount, resistance value of liquid cooling induction line and voltage value at point C
[0064] Leakage volume (mL) Liquid cooling induction line resistance (KΩ) Point C voltage (V) 0 750 3.25 0.1 180 3.12 0.2 140 3.08 0.3 100 3 0.4 60 2.83 0.5 20 2.2
[0065] In this embodiment, if the ADC detects that the voltage at point C is less than 3.25V, there may be liquid leakage in the device, and the alarm generation module will generate a first alarm signal; if the voltage at point C is greater than 3.25V, the liquid cooling sensing line may be short-circuited (or open-circuited), and the alarm generation module will generate a second alarm signal; only when the voltage at point C is equal to 3.25V, the alarm generation module will not work, indicating that the internal structure of the electronic device is normal.
[0066] It should be noted that the preset normal value described in this embodiment is not unique. When the standard resistance value of the liquid-cooling sensor line and the resistance value of the first voltage-dividing resistor are replaced with other values, the preset normal value will change accordingly.
[0067] In one embodiment of the present application, the single chip microcomputer further includes a leakage amount conversion module (not shown). The leakage amount conversion module is used to convert the voltage signal of the second pin of the liquid cooling sensing line into the leakage amount according to the comparison relationship table between the leakage amount, the resistance value of the liquid cooling sensing line and the voltage value of point C. For example, when the voltage value of the second pin of the liquid cooling sensing line is 3.08V, according to the comparison relationship table shown in Table 2, the leakage amount can be quickly determined to be 0.2ml.
[0068] In one embodiment of the present application, the alarm prompt module is used to issue an alarm prompt based on the first alarm signal or the second alarm signal.
[0069] Specifically, the alarm prompt module 53 includes a buzzer and an alarm indicator light. The buzzer is used to emit a buzzing sound based on the first alarm signal or the second alarm signal. The alarm indicator light is used to flash based on the first alarm signal and stay on based on the second alarm signal.
[0070] In one embodiment of the present application, the liquid leakage detection module 54 is used to compare the voltage value of the second pin of the liquid cooling sensing line with the first reference voltage, and output a liquid leakage alarm signal when the voltage value is less than the first reference voltage; the liquid leakage alarm signal is used to shut down the liquid input device 1 and the power supply device 3.
[0071] Specifically, the liquid leakage detection module 54 includes a first comparator (U1). The positive input terminal of the first comparator (U1) is used to input the first reference voltage, the reverse input terminal is used to input the voltage value of the second pin of the liquid cooling sensing line, and the output terminal is used to output the liquid leakage alarm signal to the liquid input device 1 and the power supply device 3 when the voltage value of the second pin of the liquid cooling sensing line is less than the first reference voltage.
[0072] In this embodiment, the output end of the first comparator (U1) is connected to the liquid input device 1 and the power supply device 3 respectively through a control end connector. The control end connector is located at the interface "⑤" of the voltage monitoring device of the liquid cooling induction line.
[0073] The value of the first reference voltage is related to the second voltage-dividing resistor (R2) and the third voltage-dividing resistor (R3). Figure 3 As shown, the second voltage-dividing resistor (R2) and the third voltage-dividing resistor (R3) are connected in series, and the connection node is point A. When the second voltage-dividing resistor (R2) is 10KΩ, the third voltage-dividing resistor (R3) is 200KΩ, and the connected power supply is 3.3V, the voltage value obtained by voltage division at point A is 3.14V.
[0074] It should be noted that the first reference voltage described in this embodiment is not unique. When the resistance values of the second voltage-dividing resistor (R2) and the third voltage-dividing resistor (R3) are replaced with other values, the first reference voltage will change accordingly.
[0075] The leakage alarm signal is at a low level by default, and outputs a high level when leakage occurs.
[0076] The short line detection module 55 is used to compare the voltage value of the second pin of the liquid cooling sensing line with a second reference voltage, and when the voltage value is greater than the second reference voltage, output a short line alarm signal to a host computer (not shown).
[0077] Specifically, the short line detection module 55 includes a second comparator (U2). The positive input terminal of the second comparator (U2) is used to input the voltage value of the second pin of the liquid cooling sensing line, the reverse input terminal is used to input the second reference voltage, and the output terminal is used to output the short line alarm signal to the host computer 6 when the voltage value is greater than the second reference voltage.
[0078] In this embodiment, the output end of the first comparator (U1) is connected to the host computer through the interface "④" to achieve monitoring and management purposes.
[0079] The value of the second reference voltage is related to the fourth voltage-dividing resistor (R4) and the fifth voltage-dividing resistor (R5). Figure 3 As shown, the fourth voltage-dividing resistor (R4) and the fifth voltage-dividing resistor (R5) are connected in series, and the connection node is point B. When the fourth voltage-dividing resistor (R4) is 10KΩ, the fifth voltage-dividing resistor (R5) is 820KΩ, and the connected power supply is 3.3V, the voltage value obtained by voltage division at point B is 3.26V.
[0080] It should be noted that the second reference voltage described in this embodiment is not unique. When the resistance values of the fourth voltage-dividing resistor (R4) and the fifth voltage-dividing resistor (R5) are replaced with other values, the second reference voltage will change accordingly.
[0081] The short-line alarm signal is low level by default, and outputs high level when the line is shorted.
[0082] Furthermore, the voltage monitoring device of the liquid cooling induction line further comprises a register, which is connected to the leakage amount conversion module and is used to record the leakage amount.
[0083] Furthermore, the single chip microcomputer is connected to the electronic device via I2C, and the connection interface is an interface "②" of the voltage detection device of the liquid cooling induction line, which is used to send information to the electronic device via I2C and the interface "②".
[0084] The present application mainly includes three working modes, namely short-line mode, normal mode and leakage mode. The working principle of each mode will be described in detail below in conjunction with specific embodiments.
[0085] (1) Short-term mode
[0086] In the short-line mode, the liquid-cooled induction line 2 is disconnected from the voltage monitoring device 5 of the liquid-cooled induction line of the present application, and the voltage at point C is pulled up to 3.3V through the first voltage-dividing resistor (R1). At this time, the voltage at the forward input terminal of the first comparator (U1) is 3.14V, the voltage at the reverse input terminal is 3.3V, the voltage at the reverse input terminal is greater than the voltage at the forward input terminal, and the output terminal outputs a low level, that is, no leakage alarm signal is generated. The voltage at the forward input terminal of the second comparator (U2) is 3.3V, the voltage at the reverse input terminal is 3.26V, the voltage at the forward input terminal is greater than the voltage at the reverse input terminal, and the output terminal outputs a high level, that is, a short-line alarm signal is output to the upper computer through the interface "④". At the same time, the voltage at point C is collected by the voltage sampling module of the single-chip microcomputer. Since the voltage at point C of 3.3V is greater than the preset normal value of 3.25V at this time, the alarm generation module will generate a first alarm signal, and the first alarm signal can control the buzzer to keep alarming, and the alarm indicator light is always on.
[0087] (2) Normal mode
[0088] In normal mode, the liquid-cooled sensing line is electrically connected to the voltage monitoring device of the liquid-cooled sensing line of the present application through a first connector, and the first voltage-dividing resistor (R1) and the resistance (RL) of the liquid-cooled sensing line are connected in series, wherein the resistance (RL) of the liquid-cooled sensing line is 750KΩ, the first voltage-dividing resistor (R1) is 10KΩ, the low-voltage power supply connected is 3.3V, and the voltage value obtained by voltage division at point C is 3.25V. At this time, the voltage of the forward input terminal of the first comparator (U1) is 3.14V, the voltage of the reverse input terminal is 3.25V, the voltage of the reverse input terminal is greater than the voltage of the forward input terminal, and the output terminal outputs a low level, that is, no leakage alarm signal is generated. The voltage of the forward input terminal of the second comparator (U2) is 3.25V, the voltage of the reverse input terminal is 3.26V, the voltage of the reverse input terminal is greater than the voltage of the forward input terminal, and the output terminal outputs a low level, that is, no short-line alarm signal is generated. At the same time, the voltage at point C is collected by the voltage sampling module of the microcontroller. Since the voltage at point C of 3.25V is equal to the preset normal value of 3.25V, the alarm generation module does not generate the first alarm signal or the second alarm signal, and the buzzer and alarm indicator light do not work.
[0089] (3) Leakage mode
[0090] In the leakage mode, the liquid cooling induction line is connected to the voltage monitoring device of the liquid cooling induction line of the present application through the first connector, and the first voltage-dividing resistor (R1) and the resistance (RL) of the liquid cooling induction line are connected in series, wherein the resistance (RL) of the liquid cooling induction line decreases as the amount of leakage increases. For example, when the liquid leaks 0.1mL, the resistance (R1) of the liquid cooling induction line will become 180KΩ, the first voltage-dividing resistor (R1) is 10KΩ, the low-voltage power supply connected is 3.3V, and the voltage value obtained by voltage division at point C is 3.12V. At this time, the voltage of the forward input terminal of the first comparator (U1) is 3.14V, the voltage of the reverse input terminal is 3.12V, the voltage of the forward input terminal is greater than the voltage of the reverse input terminal, and the output terminal outputs a high level, that is, a leakage alarm signal is sent to the liquid input device and the power supply device through the interface "⑤" to shut down the liquid input device and the power supply device. During this period, the first comparator (U1) will continue to send a leakage alarm signal until there is no leakage. The voltage of the positive input terminal of the second comparator (U2) is 3.12V, and the voltage of the reverse input terminal is 3.26V. The voltage of the reverse input terminal is greater than the voltage of the positive input terminal, and the output terminal outputs a low level, that is, no short-line alarm signal is generated. At the same time, the voltage at point C is collected by the voltage sampling module of the single-chip microcomputer. Since the voltage at point C of 3.12V is less than the preset normal value of 3.25V at this time, the alarm generation module generates a second alarm signal, the buzzer keeps alarming, and the alarm indicator light often flashes. The leakage detection module of the single-chip microcomputer converts the voltage at point C of 3.12V into a leakage volume of 0.1ml according to the comparison relationship table between the leakage volume, the resistance value of the liquid cooling induction line and the voltage value at point C, and saves the leakage volume of 0.1ml in the register, and then sends information to the host computer through I2C.
[0091] In the several embodiments provided in the present application, it should be understood that the disclosed system, device or method can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of modules / units is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or units can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules or units, which can be electrical, mechanical or other forms.
[0092] The modules / units described as separate components may or may not be physically separated, and the components displayed as modules / units may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules / units may be selected according to actual needs to achieve the purpose of the embodiments of the present application. For example, the functional modules / units in the various embodiments of the present application may be integrated into one processing module, or each module / unit may exist physically separately, or two or more modules / units may be integrated into one module / unit.
[0093] The descriptions of the processes or structures corresponding to the above-mentioned figures have different emphases. For parts that are not described in detail in a certain process or structure, please refer to the relevant descriptions of other processes or structures.
[0094] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.
Claims
1. A voltage monitoring device for a liquid-cooled induction line, characterized in that: include: A power management module, used to obtain high-voltage power from a power supply device, convert the high-voltage power into low-voltage power, and store the low-voltage power; A single chip computer, comprising a voltage sampling module and an alarm generating module, wherein the voltage sampling module is used to obtain a voltage value of a second pin of a liquid cooling induction line based on the low voltage power supply, wherein a first pin of the liquid cooling induction line is grounded; The alarm generation module is used to compare the voltage value with a preset normal value, and generate a first alarm signal when the voltage value is greater than the preset normal value, and generate a second alarm signal when the voltage value is less than the preset normal value; An alarm prompt module, used for issuing an alarm prompt based on the first alarm signal or the second alarm signal; A liquid leakage detection module, used for comparing the voltage value of the second pin of the liquid cooling sensing line with a first reference voltage, and outputting a liquid leakage alarm signal when the voltage value is less than the first reference voltage; the liquid leakage alarm signal is used for shutting down the liquid input device and the power supply device; The short line detection module is used to compare the voltage value of the second pin of the liquid cooling sensing line with a second reference voltage, and output a short line alarm signal to the host computer when the voltage value is greater than the second reference voltage.
2. The voltage monitoring device for a liquid-cooled induction line according to claim 1, characterized in that: The power management module includes a power module and a super capacitor; The power module is used to obtain high voltage power from the power supply device and convert the high voltage power into low voltage power; The super capacitor is connected to the power module and is used to store the low-voltage power supply and provide temporary power support when the power module is not working.
3. The voltage monitoring device for a liquid-cooled induction line according to claim 1, characterized in that: The voltage sampling module includes an analog-to-digital converter; The analog-to-digital converter is connected to the second pin of the liquid-cooling sensing line through a first connector, and the connection node is point C, which is used to collect the analog voltage signal of point C and convert the analog voltage signal into a digital voltage signal.
4. The voltage monitoring device for a liquid-cooled induction line according to claim 3, characterized in that: The preset normal value is the voltage value at point C corresponding to the resistance value of the liquid cooling induction line when the leakage amount is equal to 0.
5. The voltage monitoring device for a liquid-cooled induction line according to claim 3, characterized in that: The single chip microcomputer also includes a leakage amount conversion module; The leakage amount conversion module is used to convert the digital voltage signal into the leakage amount according to the comparison relationship table between the leakage amount, the resistance value of the liquid cooling induction line and the voltage value of point C.
6. The voltage monitoring device for a liquid-cooled induction line according to claim 5, characterized in that: It also includes registers; The register is connected to the leakage amount conversion module and is used to record the leakage amount.
7. The voltage monitoring device for a liquid-cooled induction line according to claim 1, characterized in that: The alarm prompt module includes a buzzer and an alarm indicator light; The buzzer is used to emit a buzzer sound based on the first alarm signal or the second alarm signal; The alarm indicator light is configured to flash based on the first alarm signal and remain on based on the second alarm signal.
8. The voltage monitoring device for a liquid-cooled induction line according to claim 1, characterized in that: The liquid leakage detection module includes a first comparator; The positive input terminal of the first comparator is used to input the first reference voltage, the reverse input terminal is used to input the voltage value of the second pin of the liquid cooling sensing line, and the output terminal is used to output the liquid leakage alarm signal to the liquid input device and the power supply device when the voltage value of the second pin of the liquid cooling sensing line is less than the first reference voltage.
9. The voltage monitoring device for a liquid-cooled induction line according to claim 1, characterized in that: The short line detection module includes a second comparator; The positive input terminal of the second comparator is used to input the voltage value of the second pin of the liquid cooling sensing line, the reverse input terminal is used to input the second reference voltage, and the output terminal is used to output the short line alarm signal to the host computer when the voltage value is greater than the second reference voltage.
10. The voltage monitoring device for a liquid-cooled induction line according to claim 9, characterized in that: The output end of the second comparator is connected to the liquid input device and the power supply device respectively through a control end connector.