Liquid leakage detection structure and heat dissipation structure

Abstract

The present disclosure relates to a liquid leakage detection structure and a heat dissipation structure. The liquid leakage detection structure is matched with a liquid leakage detection line and a liquid leakage detection module. The liquid leakage detection line senses whether a liquid leakage detection object leaks liquid and generates a corresponding liquid leakage sensing signal. The signal acquisition circuit in the liquid leakage detection module acquires the liquid leakage sensing signal. The liquid leakage detection circuit determines a corresponding liquid leakage detection signal according to the liquid leakage sensing signal and a liquid leakage reference signal. The processing module of the electronic device can determine whether the liquid leaks according to the liquid leakage detection signal. The liquid leakage detection structure realizes fast response and reliable operation, effectively prevents the electronic device from being damaged due to liquid leakage, and improves the safety and stability of the electronic device during operation.

Description

Technical Field

[0001] This disclosure relates to the field of leakage detection technology, and in particular to a leakage detection structure and a heat dissipation structure. Background Technology

[0002] During the application of electronic devices, the various working components typically generate a large amount of heat, leading to excessively high internal temperatures and affecting the device's performance. Therefore, cooling is crucial for electronic devices. Common cooling technologies include air cooling and liquid cooling. Since liquids have a much higher thermal conductivity than air, liquid cooling is more widely used than air cooling. However, liquid cooling systems are prone to leakage; leaked liquid dripping onto the working components can easily damage them.

[0003] Therefore, providing a leakage detection structure to detect leakage in liquid cooling systems in a timely manner is an urgent problem to be solved. Summary of the Invention

[0004] This disclosure provides a leakage detection structure and a heat dissipation structure to at least solve the above-mentioned technical problems existing in the prior art.

[0005] A first aspect of this disclosure provides a leakage detection structure, comprising: a leakage detection line and a leakage detection module, wherein a first end of the leakage detection line is physically connected to a leakage detection object, and a second end of the leakage detection line is communicatively connected to the leakage detection module; The leakage detection line is used to sense whether the object being leaked is leaking and to generate a corresponding leakage sensing signal. The leakage detection module includes a signal acquisition circuit and a leakage detection circuit. The signal acquisition circuit is used to acquire the leakage sensing signal generated by the leakage detection line. The leakage detection circuit is used to generate a leakage detection signal based on the acquired leakage sensing signal and leakage reference signal, so that the processing module of the electronic device can determine whether the electronic device is leaking based on the leakage detection signal.

[0006] In one embodiment, the first end of the leakage detection line is wound and connected to the leakage detection object, or the first end of the leakage detection line is in contact with the leakage detection object, or the first end of the leakage detection line is snapped and connected to the leakage detection object, or the first end of the leakage detection line is adsorbed and connected to the leakage detection object.

[0007] In one embodiment, the number of leakage detection lines is at least one, and the leakage detection module is configured corresponding to the leakage detection line.

[0008] In one possible implementation, the signal acquisition circuit includes: The sensor signal acquisition circuit is used to acquire the sensing signal generated by the leakage detection line and determine that the sensing signal is a leakage sensing signal. A voltage divider circuit is used to divide the leakage sensing signal and convert the leakage sensing signal from a resistance signal into a voltage signal.

[0009] In one embodiment, the leakage detection circuit includes: A leakage signal reference circuit is used to generate the leakage reference signal; A leakage comparator is used to receive the leakage sensing signal and the leakage reference signal, and generate a leakage comparison signal based on the leakage sensing signal and the leakage reference signal; A signal conversion circuit is used to receive the leakage comparison signal and convert the leakage comparison signal into a leakage detection signal.

[0010] In one embodiment, the sensor signal acquisition circuit is further configured to acquire the sensing signal generated by the leakage detection line and determine that the sensing signal is a disconnection sensing signal. The leakage detection module also includes a wire breakage detection circuit; The wire breakage detection circuit is used to generate a wire breakage detection signal based on the wire breakage induction signal and the wire breakage reference signal, so as to determine whether the leakage detection line is broken based on the wire breakage detection signal.

[0011] In one possible implementation, the disconnection detection circuit includes: A disconnection signal reference circuit is used to generate a disconnection reference signal. A disconnection comparator is used to receive the disconnection sensing signal and the disconnection reference signal, and generate a disconnection detection signal based on the disconnection sensing signal and the disconnection reference signal.

[0012] A second aspect of this disclosure provides a heat dissipation structure, comprising: a liquid-cooled heat dissipation structure body and a leakage detection structure as described in any one of the above claims; The liquid cooling heat dissipation structure body includes a liquid cooling plate assembly and liquid cooling pipes; The liquid cooling plate assembly is used to conduct heat from the working components in the electronic device to the liquid cooling pipe; The designated detection end of the liquid cooling pipe is connected to the first end of the leakage detection line so that the leakage detection line can perform leakage detection on the designated detection end of the liquid cooling pipe.

[0013] In one embodiment, the liquid cooling plate assembly has a leakage groove; The leakage tank is equipped with a corresponding leakage detection line so that the leakage detection line corresponding to the leakage tank can detect leakage in the leakage tank.

[0014] In one embodiment, the system further includes an air-cooled heat dissipation structure body, which is disposed on a designated side of the liquid-cooled heat dissipation structure.

[0015] This disclosure discloses a leakage detection structure that uses a leakage detection line and a leakage detection module in conjunction. The leakage detection line senses whether the object being detected is leaking and generates a corresponding leakage sensing signal. The signal acquisition circuit in the leakage detection module acquires the leakage sensing signal, and the leakage detection circuit determines the corresponding leakage detection signal based on the leakage sensing signal and a leakage reference signal. This allows the processing module of the electronic device to determine whether a leak has occurred. This achieves rapid response and reliable operation of leakage detection, effectively preventing component damage to electronic devices due to leakage and improving the safety and stability of the electronic device during operation.

[0016] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0017] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which: In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0018] Figure 1 A schematic diagram of a leakage detection structure according to an embodiment of this disclosure is shown. Figure 1 ; Figure 2 A schematic diagram of a leakage detection structure according to an embodiment of this disclosure is shown. Figure 2 ; Figure 3 A schematic diagram of the leakage detection rope in the leakage detection structure of this disclosure embodiment is shown; Figure 4 A schematic diagram of the heat dissipation structure according to an embodiment of the present disclosure is shown. Figure 1 ; Figure 5 A schematic diagram of the heat dissipation structure according to an embodiment of the present disclosure is shown. Figure 2 ; Figure 6 A schematic diagram of the cover plate in the heat dissipation structure of this disclosure embodiment is shown; Figure 7 A schematic diagram showing the change in resistance of the leakage detection resistor as a function of leakage amount according to an embodiment of this disclosure is shown; Figure 8 A schematic diagram of the heat dissipation structure according to an embodiment of the present disclosure is shown. Figure 3 ; Figure 9 A schematic diagram of the leakage detection and processing flow according to an embodiment of the present disclosure is shown.

[0019] The following are the labeling instructions in the diagram: 1. Leakage detection structure; 10. Leakage detection line; 101. First end of the leakage detection line; 11. Sensing line; 12. Protective sleeve; 20. Leakage detection module; 21. Signal acquisition circuit; 211. Sensor signal acquisition circuit; 212. Voltage divider circuit; 22. Leakage detection circuit; 221. Leakage signal reference circuit; 222. Signal conversion circuit; 23. Wire breakage detection circuit; 231. Wire breakage signal reference circuit; 24. Plug; 30. Liquid cooling plate assembly; 31. Cover plate; 311. Flow channel; 312. First opening; 32. Liquid cooling plate; 321. Liquid cooling flow channel plate; 3211. Leakage tank; 322. Liquid cooling flow channel cover plate; 40. Liquid cooling pipe; 401. Welding position; 402. Water pipe; 50. Heat pipe assembly; 51. Fan assembly. Detailed Implementation

[0020] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0021] This disclosure provides a leakage detection structure 1, such as... Figure 1 As shown, it includes: a leakage detection line 10 and a leakage detection module 20. The first end of the leakage detection line 10 is physically connected to the leakage detection object, and the second end of the leakage detection line 10 is communicatively connected to the leakage detection module 20. The leak detection line 10 is used to sense whether the leak detection object is leaking and to generate a corresponding leak sensing signal; The leakage detection module 20 includes a signal acquisition circuit 21 and a leakage detection circuit 22. The signal acquisition circuit 21 is used to acquire the leakage sensing signal generated by the leakage detection line 10. The leakage detection circuit 22 is used to generate a leakage detection signal based on the acquired leakage sensing signal and the leakage reference signal, so that the processing module of the electronic device can determine whether the electronic device is leaking based on the leakage detection signal.

[0022] In this embodiment, the first end 101 of the leak detection line 10 is physically connected to the leak detection target, i.e., it is set at a location in the electronic device where leaks are likely to occur, such as the location of the working element used for liquid cooling, especially the pipe interface of the liquid cooling water pipe. Accordingly, the first end 101 of the leak detection line 10 can be set around the pipe interface of the liquid cooling water pipe. The second end of the leak detection line 10 is communicatively connected to the leak detection module 20, so that the leak detection module 20 can generate a corresponding leak detection signal based on the leak sensing signal detected by the leak detection line 10 combined with the leak reference signal. Then, the processing module can determine whether a leak has occurred based on the signal, i.e., whether to perform corresponding leak handling.

[0023] It should be noted that the leakage detection module 20 in this embodiment includes a signal acquisition circuit 21 and a leakage detection circuit 22. The signal acquisition circuit 21 acquires the leakage induction signal generated by the leakage detection line 10. Here, it should be explained that when leakage occurs in the internal working components of the electronic device, i.e., when the leakage detection object actually leaks, the leaking liquid flows into the leakage detection line 10, causing a conductive liquid to be present in the leakage detection line 10, thus forming a conductive path with coolant as the medium. The coolant includes liquids such as water or ethylene glycol. Correspondingly, the resistance value of the leakage detection line 10 drops rapidly, and the signal acquisition circuit 21 acquires the leakage induction voltage signal generated by the decrease in resistance of the leakage detection line 10. The leakage detection circuit 22 generates a corresponding leakage detection signal based on the leakage induction signal and the leakage reference signal, and transmits it to the processing module so that the processing module can determine whether leakage processing has occurred based on the leakage detection signal. The leakage reference signal is a voltage signal.

[0024] In one scenario, the electronic device is working normally and there is no leakage. The voltage corresponding to the voltage signal converted from the leakage sensing signal is greater than the voltage corresponding to the leakage reference signal. Accordingly, the generated leakage detection signal is high level. The high-level leakage detection signal is transmitted to the processing module of the electronic device, such as the EC controller. At this time, the EC controller does not trigger an interrupt or a leakage alarm. In another scenario, a leak occurs in the working element inside the electronic device, i.e., the object to be detected for leakage, such as a leak in the liquid cooling structure. In this case, the voltage corresponding to the voltage signal converted from the leakage sensing signal is less than the voltage corresponding to the leakage reference signal. Accordingly, the generated leakage detection signal is low level. The low-level leakage detection signal is transmitted to the EC controller of the electronic device. At this time, the EC controller triggers an interrupt and performs a leakage alarm.

[0025] Therefore, when a leak occurs in the object being leaked, the leak detection circuit 22 in this embodiment outputs a low-level leak detection signal, allowing the electronic device's processing module to perform corresponding leak handling based on this signal. In related technologies, complex algorithms are typically used to compare the inlet and outlet water temperatures and historical water temperature baselines in the liquid cooling system of electronic devices to determine if a leak has occurred. However, due to algorithmic errors, this can easily lead to false leak detections, resulting in inaccurate leak detection results. This embodiment utilizes a combination of a leak detection line 10 and a leak detection module 20. The leak detection line 10 senses whether the object being leaked and generates a corresponding leak sensing signal. The signal acquisition circuit 21 in the leak detection module 20 acquires the leak sensing signal, and the leak detection circuit 22 determines the corresponding leak detection signal based on the leak sensing signal and the leak reference signal. This allows the electronic device's processing module to determine if a leak has occurred based on the leak detection signal. The entire process uses a high or low level as the sole criterion, achieving rapid response and reliable operation in leak detection. This effectively prevents damage to electronic components due to leaks, improving the safety and stability of the electronic device during operation.

[0026] In one embodiment, the first end of the leakage detection line 10 is wound and connected to the leakage detection object, or the first end of the leakage detection line 10 is in contact with the leakage detection object, or the first end of the leakage detection line 10 is snapped and connected to the leakage detection object, or the first end of the leakage detection line 10 is adsorbed and connected to the leakage detection object.

[0027] In this embodiment, various flexible connection methods such as wrapping, contact, snap-fit, and adsorption can be adopted to adapt to the leakage-prone locations of different leakage detection objects, depending on the actual situation. This ensures an effective connection between the leakage detection line 10 and the detection object, guaranteeing that the leakage detection line 10 can promptly sense and generate a leakage sensing signal when a leak occurs, thus improving the sensitivity and response speed of leakage detection. Furthermore, the appropriate connection method can be selected based on the material of the detection object, installation space, and disassembly requirements, significantly improving the versatility and installation adaptability of the leakage detection structure. In addition, snap-fit ​​and adsorption connection methods offer convenient assembly and disassembly, facilitating subsequent maintenance, replacement, and repositioning of the detection line, effectively reducing usage and maintenance costs.

[0028] In one embodiment, the number of leakage detection lines 10 is at least one, and the leakage detection module 20 is configured corresponding to the leakage detection line 10.

[0029] It should also be noted that in this embodiment, there is at least one leakage detection line 10, and the number of leakage detection lines 10 can be selected according to actual needs. Correspondingly, the leakage detection module 20 is set up to correspond to the leakage detection line 10, and the number of signal acquisition circuits 21 and leakage detection circuits 22 in the leakage detection module 20 is adapted to the number of leakage detection lines 10. This configurable number matching method can flexibly deploy detection lines according to the distribution of leakage-prone areas of electronic devices and the leakage monitoring range requirements, achieving comprehensive detection and avoiding detection blind spots. At the same time, each circuit in the detection module is adapted to the leakage detection line 10, and the sensing signal of each leakage detection line 10 can be independently acquired and detected. Each leakage detection line 10 is not affected by interference from other detection lines, making the application more flexible.

[0030] In one possible implementation, such as Figure 2 As shown, the signal acquisition circuit 21 includes: The sensor signal acquisition circuit 211 is used to acquire the sensing signal generated by the leakage detection line 10 and determine that the sensing signal is a leakage sensing signal. Voltage divider circuit 212 is used to divide the leakage sensing signal and convert the leakage sensing signal from a resistance signal to a voltage signal.

[0031] In this embodiment, the leakage detection line 10 is internally provided with at least two sensing lines 11 and a break detection resistor Rd. The at least two sensing lines 11 are wound together along the length of the line, and the resistance between the sensing lines is equivalent to the leakage detection resistor. The leakage detection resistor and the break detection resistor are connected in parallel to form a corresponding detection resistor. Wherein, as... Figure 3 As shown, the induction wire is fixed to the break detection resistor by solder, and the solder connection point is point A. A PVC protective sleeve 12 is provided outside the induction wire, and the space between the induction wire and the PVC protective sleeve 12 is filled with filler B.

[0032] It should be noted that the signal acquisition circuit 21 in this embodiment includes a sensor signal acquisition circuit 211 and a voltage divider circuit 212. The sensor signal acquisition circuit 211 acquires the induced signal generated by the leakage detection line 10 and determines that the induced signal is a leakage induction signal RSENSOR_IN1. The leakage induction signal RSENSOR_IN1 generated by the leakage detection line 10 is matched with the resistance value of the detection resistor. At the same time, the voltage divider circuit 212 is used to divide the leakage induction signal, converting the leakage induction signal from a resistance signal to a voltage signal. That is, the change in the resistance value of the detection resistor directly affects the voltage division result of the voltage divider circuit 212 for the leakage induction signal. In this embodiment, the voltage divider circuit 212 includes a first resistor R4 and a second resistor R3. The first resistor R4 is connected in parallel with the detection resistor to form a total parallel resistance, which is then connected to one end of the second resistor R3. The other end of the second resistor R3 is connected to a power supply signal. Accordingly, the voltage divider signal obtained based on the power supply signal and the leakage sensing signal serves as the detection basis for the leakage detection circuit 22 to detect whether there is leakage, ensuring that subsequent targeted treatment can be carried out according to the actual situation to prevent damage to components in electronic devices caused by leakage.

[0033] In one embodiment, the leakage detection circuit 22 includes: Leakage signal reference circuit 221 is used to generate a leakage reference signal; A leak comparator is used to receive a leak sensing signal and a leak reference signal, and to generate a leak comparison signal based on the leak sensing signal and the leak reference signal. The signal conversion circuit 222 is used to receive the leakage comparison signal and convert the leakage comparison signal into a leakage detection signal.

[0034] In this embodiment, the leakage detection circuit 22 includes a leakage comparator, a signal conversion circuit 222, and a leakage signal reference circuit 221. The first input terminal of the leakage comparator is connected to the signal output terminal of the signal acquisition circuit 21, receiving the leakage sensing signal after voltage division processing output by the signal acquisition circuit 21. The second input terminal of the leakage comparator is connected to the signal output terminal of the leakage signal reference circuit 221, receiving the leakage reference signal. The output terminal of the leakage comparator is connected to the first input terminal of the signal conversion circuit 222, transmitting the leakage comparison signal to the signal conversion circuit 222, which then converts it into a leakage detection signal and transmits it to an external processing module. In this embodiment, the signal conversion circuit 222 is preferably a NOR gate U2.

[0035] It should be noted that the leakage signal reference circuit 221 in this embodiment includes a third resistor R5, a fourth resistor R6, and a first capacitor C2. One end of the third resistor R5 is connected to the power supply signal, and the other end is connected to the fourth resistor R6 and the first capacitor C2 connected in parallel. After the power supply signal is divided by the third resistor R5 and the fourth resistor R6, the leakage reference signal is obtained, which serves as the basis for comparison of the leakage comparator. The first capacitor C2 is a filter capacitor used to suppress the noise of the leakage reference signal, i.e., the reference voltage.

[0036] It should also be noted that the leakage detection module 20 in this embodiment further includes a connector JP1, which is connected to the NOR gate U2. The connector JP1 can be directly connected to the processing module to transmit the leakage detection signal to the processing module for processing. Preferably, the connector is a plug 24.

[0037] When a leak occurs in the object being detected by the electronic device, a conductive path with water as the medium exists between the sensing lines, forming a loop. The resistance of the corresponding leak detection resistor drops sharply, and consequently, the total parallel resistance also decreases rapidly. At this point, the voltage of the leak detection signal after voltage division is less than the voltage of the leak reference signal, resulting in a high-level leak comparison signal. This high-level signal is converted to a low-level leak detection signal, allowing the processing module to perform corresponding leak handling actions, such as leak alarms, based on the low-level leak detection signal. This enables a rapid response to leaks and ensures the normal operation of the electronic device.

[0038] In one embodiment, the sensor signal acquisition circuit 211 is also used to acquire the sensing signal generated by the leakage detection line 10 and determine that the sensing signal is a disconnection sensing signal. The leakage detection module 20 also includes a wire breakage detection circuit 23; The wire breakage detection circuit 23 is used to generate a wire breakage detection signal based on the wire breakage induction signal and the wire breakage reference signal, so as to determine whether the leakage detection line 10 is broken based on the wire breakage detection signal.

[0039] In this embodiment, since the leakage detection line 10 itself may be broken, the leakage detection module 20 of this embodiment adds a break detection circuit 23 to detect whether the leakage detection line 10 is broken. In this embodiment, the leakage detection line 10 includes a normal state and a broken state. Accordingly, the sensor signal acquisition circuit 211 is also used to acquire the sensing signal generated by the leakage detection line 10 and determine that the sensing signal is a break sensing signal. Among them, the break detection circuit 23 determines the break detection signal based on the comparison result of the break sensing signal and the break reference signal, and transmits it to the processing module. The processing module determines whether a break has occurred, i.e., whether to perform the corresponding break processing of the leakage detection line 10, based on the high or low level of the break detection signal.

[0040] In one scenario, the leakage detection line 10 is not broken. The voltage of the breakage sensing signal is less than the voltage of the breakage reference signal. The corresponding breakage detection signal is high level. The high-level breakage detection signal is transmitted to the processing module and will not trigger a breakage alarm. In another scenario, a break occurs in the leakage detection line 10. The corresponding break detection resistor is open-circuited, and the total resistance after parallel connection (i.e., the total resistance of the leakage detection resistor, the break detection resistor, and the first resistor R4 in parallel) increases. This causes the voltage signal after the signal acquisition circuit 21 divides and processes the break sensing signal to be greater than the break reference signal. The corresponding break detection signal is low-level. The low-level break detection signal is transmitted to the processing module, triggering the processing module to execute an interrupt and issue a break alarm.

[0041] Therefore, this embodiment can not only detect leaks, but also detect the breakage of the leak detection line 10, thereby ensuring that the leak detection line 10 can work normally and preventing the failure to detect leaks due to the breakage of the leak detection line 10 itself, thus further ensuring the accuracy of the leak detection results.

[0042] In one embodiment, the disconnection detection circuit 23 includes: The disconnection signal reference circuit 231 is used to generate a disconnection reference signal; The disconnection comparator is used to receive the disconnection sensing signal and the disconnection reference signal, and generate a disconnection detection signal based on the disconnection sensing signal and the disconnection reference signal.

[0043] In this embodiment, the open circuit detection circuit 23 includes an open circuit comparator and an open circuit signal reference circuit 231. The first input terminal of the open circuit comparator is connected to the signal output terminal of the signal acquisition circuit 21, used by the signal acquisition circuit 21 to divide the open circuit sensing signal into voltages. The second input terminal of the open circuit comparator is connected to the signal output terminal of the open circuit signal reference circuit 231. The open circuit signal reference circuit 231 includes a fifth resistor R2, a sixth resistor R1, and a second capacitor C1. One end of the fifth resistor R2 is connected to a power supply signal, and the other end is connected to the parallel-connected sixth resistor R1 and second capacitor C1, outputting a voltage-divided open circuit reference signal to the second input terminal of the open circuit comparator. The output terminal of the open circuit comparator is connected to the processing module of the electronic device via connector JP1 to transmit an open circuit detection signal to the processing module, enabling the processing module to perform open circuit detection of the corresponding leakage detection line 10 based on the high or low level of the open circuit detection signal.

[0044] The following will describe the embodiments of this disclosure in detail, taking the example of setting two leakage detection lines in the leakage detection structure.

[0045] The leakage detection structure in this embodiment includes two leakage detection lines, namely a first leakage detection line and a second leakage detection line, as well as a leakage detection module 20 to detect leakage in the leakage detection area C. The leakage detection module 20 includes a first signal acquisition circuit, a second signal acquisition circuit, a first leakage comparator U1A and a corresponding first leakage signal reference circuit, a first disconnection comparator U1D and a corresponding first disconnection signal reference circuit, a second leakage comparator U1B and a corresponding second leakage signal reference circuit, a second disconnection comparator U1C and a corresponding second disconnection signal reference circuit, an NOR gate U2, and a connector JP1. The detection resistor of the first leakage detection line is connected in parallel with the first resistor R4 in the first signal acquisition circuit. The total resistance after parallel connection is connected in series with the second resistor R3 in the first signal acquisition circuit to divide the voltage. The corresponding connection nodes are connected to the first input terminals of the first leakage comparator U1A and the first disconnection comparator U1D, respectively. The second input terminal of the first leakage comparator U1A is connected to the signal output terminal of the first leakage signal reference circuit, and the second input terminal of the first disconnection comparator U1D is connected to the signal output terminal of the first disconnection signal reference circuit. The output terminal of the first leakage comparator U1A is connected to the first input terminal of the NOR gate U2. The output terminal of the NOR gate U2 is connected to connector JP1, which transmits the first leakage detection signal output by the NOR gate U2 to the processing module. The output terminal of the first disconnection comparator U1D is connected to the processing module through connector JP1, which also transmits the first disconnection detection signal to the processing module. The detection resistor of the second leakage detection line is connected in parallel with the seventh resistor in the second signal acquisition circuit. The total resistance after parallel connection is connected in series with the eighth resistor in the second signal acquisition circuit to divide the voltage. The corresponding connection nodes are connected to the first input terminals of the second leakage comparator U1B and the second disconnection comparator U1C, respectively. The second input terminal of the second leakage comparator U1B is connected to the signal output terminal of the second leakage signal reference circuit. The second input terminal of the second disconnection comparator U1C is connected to the signal output terminal of the second disconnection signal reference circuit. The third and fourth signal reference circuits, as well as the first and second signal reference circuits, are all composed of a resistor and parallel resistors and capacitors. The output terminal of the second leakage comparator U1B is connected to the second input terminal of the NOR gate U2. The output terminal of the second disconnection comparator U1C is connected to the processing module via connector JP1.

[0046] In practical applications, the total resistance of the first resistor R4 in the first signal acquisition circuit, connected in parallel with the detection resistor of the first leakage detection line, is denoted as RB1. The power supply signal VCC, after being divided by the second resistor R3 and the parallel total resistance RB1, forms an electrical signal denoted as VRS1. Furthermore, the power supply signal VCC, after being divided by the third resistor R5 and the fourth resistor R6 in the first leakage signal reference circuit, yields the first leakage reference signal VREF1. Similarly, the power supply signal VCC, after being divided by the fifth resistor R2 and the sixth resistor R1 in the first disconnection signal reference circuit, yields the first disconnection reference signal VREF4. The first leakage comparator U1A is also connected to an RC filter circuit composed of the third capacitor and the ninth resistor to suppress operational amplifier power supply noise.

[0047] The total resistance of the seventh resistor in the second signal acquisition circuit, connected in parallel with the detection resistor of the second leakage detection line, is denoted as RB2. The power supply signal VCC, after being divided by the eighth resistor and the total parallel resistance RB2, forms an electrical signal denoted as VRS2. Similarly, the power supply signal VCC, after being divided by the second leakage signal reference circuit, yields the second leakage reference signal VREF2, and the power supply signal VCC, after being divided by the second disconnection signal reference circuit, yields the second disconnection reference signal VREF3.

[0048] When performing leak detection and analysis: If there is no leakage at the location corresponding to the first leakage detection line, the electrical signal VRS1 received by the first leakage comparator U1A is greater than the first leakage reference signal VREF1. The output terminal of the first leakage comparator U1A outputs a low-level VOUT1 signal under negative saturation. After passing through the NOR gate U2, it outputs a high-level first leakage detection signal. This signal is transmitted to the processing module through connector JP1. At this time, no interrupt is triggered, and no leakage alarm is issued. Similarly, if there is no leakage at the location corresponding to the second leakage detection line, the VRS2 received by the second leakage comparator U1B is greater than the second leakage reference signal VREF2. The second leakage comparator U1B outputs a low-level VOUT2 signal under negative saturation. After passing through the NOR gate U2, it also outputs a high-level second leakage detection signal. This signal is transmitted to the processing module through connector JP1. At this time, no interrupt is triggered, and no leakage alarm is issued.

[0049] If leakage occurs at the location corresponding to the first leakage detection line, the resistance of the first leakage detection line decreases, and the total parallel resistance RB1 also decreases. The electrical signal VRS1 received by the first leakage comparator U1A is less than the first leakage reference signal VREF1. At this time, the output of the first leakage comparator U1A outputs a high-level VOUT1 signal. After passing through the NOR gate U2, it outputs a low-level first leakage detection signal. This signal is transmitted to the processing module through connector JP1, triggering an interrupt and a leakage alarm. Similarly, if leakage occurs at the location corresponding to the second leakage detection line, the VRS2 received by the second leakage comparator U1B is less than the second leakage reference signal VREF2. The second leakage comparator U1B outputs a positive saturation high-level VOUT2 signal. After passing through the NOR gate U2, it also outputs a low-level second leakage detection signal. This signal is transmitted to the processing module through connector JP1, triggering an interrupt and a leakage alarm. That is, when any leak detection line detects a leak, the corresponding comparator will output a high-level signal, which will then output a low-level signal after passing through the NOR gate U2, triggering the processing module to execute interrupt and leak alarm processing.

[0050] When performing wire breakage detection and analysis: If the first leak detection line is not disconnected, the electrical signal VRS1 received by the first disconnection comparator U1D is less than the first disconnection reference signal VREF4. The output of the first disconnection comparator U1D will be a high-level EC_VOUT4_DTEC_N signal in positive saturation mode, and the processor will not trigger a disconnection alarm. Similarly, if the second leak detection line is not disconnected, the electrical signal VRS2 received by the second disconnection comparator U1C is less than the second disconnection reference signal VREF3. The output of the second disconnection comparator U1C will be a high-level EC_VOUT3_DTEC_N signal in positive saturation mode, and the processor will also not trigger a disconnection alarm.

[0051] If the first leak detection line is disconnected, the parallel total resistance RB1 increases. The electrical signal VRS1 received by the first disconnection comparator U1D is greater than the first disconnection reference signal VREF4. The output of the first disconnection comparator U1D is negatively saturated and outputs a low-level EC_VOUT4_DTEC_N signal. At this time, the processor will trigger a disconnection alarm. Similarly, if the second leak detection line is disconnected, the parallel total resistance RB2 increases. The electrical signal VRS2 received by the second disconnection comparator U1C is greater than the second disconnection reference signal VREF3. The output of the second disconnection comparator U1C is negatively saturated and outputs a low-level EC_VOUT3_DTEC_N signal. At this time, the processor will also trigger a disconnection alarm. That is, if any leak detection line is disconnected, the corresponding comparator will output a low-level signal, triggering the processing module to execute interrupt and leak alarm processing.

[0052] Taking the corresponding parameters of the first liquid leakage detection line as an example, the resistance values of the first resistor R4 and the second resistor R3 are both 10kΩ, the third resistor R5 is 20 kΩ, the fourth resistor R6 has a resistance value of 10 kΩ, the fifth resistor R2 has a resistance value of 2 kΩ, and the sixth resistor R1 has a resistance value of 20 KΩ; The first liquid leakage reference signal VREF1=3.3 R6 / (R5+R6)V=1.1V; The first disconnection reference signal VREF4=3.3 R1 / (R1+R2)V=3V; The resistance value of the disconnection detection resistor is 20 kΩ; A resistance value of the liquid leakage detection resistor < 6.67 kΩ indicates liquid leakage; When the liquid leakage detection resistor = 6.67 kΩ, RB1=R4 / / Rw / / Rd=10MΩ / / 6.67kΩ / / 20 kΩ=5KΩ, VRS1= VRS2= VCC RB1 / ( RB1+R3)=1.1V; When liquid leakage occurs, the liquid leakage detection resistor drops to Rw < 6.67 kΩ, that is, RB1 < 5KΩ, VRS1 < VREF1=1.1V, VOUT performs positive saturation output of a high level, and at this time, the output EC_ALRET_N of U2 will output a low level to trigger an EC interrupt. If liquid leakage occurs, VOUT1 outputs a high level, and EC_ALRET_N will output a low level to trigger the EC. That is, when VRS1 > VREF1, VOUT1 performs negative saturation output of a low level, and EC_ALRET_N outputs a high level, which indicates that the electronic device is in a normal and non-leakage state at this time.

[0053] Under the condition of disconnection and no liquid leakage, RB1= 5MΩ, VRS1 (3.3V) > VREF4 (3V), U1D performs negative saturation output of a low level to trigger an EC interrupt for disconnection alarm.

[0054] In conclusion, the processing module of the electronic device triggers an EC interrupt according to the received low-level signal, and gives an alarm for liquid leakage or disconnection, so as to ensure that the electronic device can operate in a normal state.

[0055] In a second aspect of the present disclosure, there is also provided a heat dissipation structure, as shown in Figure 4 and Figure 5 , comprising: a liquid-cooled heat dissipation structure body and the liquid leakage detection structure 1 according to any one of the above; the liquid-cooled heat dissipation structure body comprises a liquid-cooled plate assembly 30 and a liquid-cooled pipe 40; the liquid-cooled plate assembly 30 is configured to conduct heat from working elements in the electronic device to the liquid-cooled pipe 40; The designated detection end of the liquid cooling pipe 40 is connected to the first end 101 of the leakage detection line so that the leakage detection line 10 performs leakage detection on the designated detection end of the liquid cooling pipe 40.

[0056] In this embodiment, the liquid cooling heat dissipation structure includes a liquid cooling pipe 40 and a liquid cooling plate assembly 30. The designated detection end of the liquid cooling pipe 40 is connected to the first end 101 of one of the leakage detection lines. It should be noted that in this embodiment, the designated detection end of the liquid cooling pipe 40 refers to the end of the liquid cooling pipe 40 that needs to be welded to other components, such as the end of the liquid cooling pipe 40 that needs to be welded to the water pipe 402 for connecting coolant or discharging liquid after absorbing heat. The corresponding connection location is prone to leakage risk; that is, the designated detection end of the liquid cooling pipe 40 has a leakage risk. Therefore, in this embodiment, it is preferable to connect the designated detection end of the liquid cooling pipe 40 to the first end 101 of the leakage detection line.

[0057] It should also be noted that the liquid cooling plate assembly 30 in this embodiment is provided with a receiving space, and the liquid cooling pipe 40 is fixedly disposed within this receiving space. In practical applications, the liquid cooling plate assembly 30 is disposed in close contact with the heat-generating working components in electronic devices, such as chips and batteries. The heat from the heat-generating working components is transferred to the flowing coolant through the liquid cooling plate assembly 30 to achieve the purpose of liquid cooling. The liquid cooling pipe 40 includes an inlet pipe and an outlet pipe. The inlet pipe introduces coolant for cooling the liquid cooling plate assembly, and the outlet pipe discharges the coolant carrying a large amount of heat.

[0058] In this embodiment, one of the leakage detection lines is connected to a designated detection end of the liquid cooling pipe 40, such as the designated detection end of the liquid inlet pipe. This line is used to detect whether leakage occurs at the designated detection end of the liquid inlet pipe. The detection principle is the same as that described in the corresponding part of the leakage detection structure above, and will not be repeated here. By adding a leakage detection structure to the liquid cooling heat dissipation structure, leakage can be detected in real time, effectively preventing leaked liquid from flowing onto the working components of electronic devices, such as chips and batteries, causing damage to these components and thus affecting the working performance of the electronic devices.

[0059] In one embodiment, the liquid cooling plate assembly has a leakage groove 3211; The leakage tank 3211 is equipped with a corresponding leakage detection line 10 so that the leakage detection line 10 corresponding to the leakage tank 3211 can detect leakage in the leakage tank 3211.

[0060] In this embodiment, the liquid cooling plate assembly 30 includes a cover plate 31 and a liquid cooling plate 32. A fixing portion is provided on one side of the cover plate 31, and an accommodating space is provided within the fixing portion. The liquid cooling pipe 40 is fixed within the accommodating space of the fixing portion. A first opening 312 is provided on the cover plate 31 relative to the positions of the inlet and outlet pipes. In addition, a flow channel 311 is provided on the other side of the cover plate 31. It should be noted that in this embodiment, the flow channel 311 is located between the first opening 312 on the cover plate 31 relative to the inlet and outlet pipes, and the liquid cooling plate 32 is located on the flow channel side of the cover plate 31.

[0061] It should be noted that, for example Figure 6 As shown, in this embodiment, a leakage groove 3211 is provided on the liquid cooling plate 32 at a position relative to the flow channel 311. The first end 101 of a leakage detection line can be fixed in the leakage groove 3211 using hot melt adhesive. In this embodiment, both ends of the liquid cooling pipe 40 need to be welded to other components, and one end is welded to the receiving space of the fixing part. The corresponding welding position 401 is also prone to leakage. Based on this, this embodiment preferably uses two leakage detection lines to achieve leakage detection. In the two leakage detection lines, the first end of the first leakage detection line is connected to the first end of the liquid cooling pipe 40, and the first end of the second leakage detection line is set in the leakage groove 3211. Leakage at the first end of the liquid cooling pipe 40 can be detected by the first leakage detection line, and leakage at the second end of the liquid cooling pipe 40 can be detected by the second leakage detection line. When leakage occurs at the second end of the liquid cooling pipe 40, the leaked liquid can flow into the leakage tank 3211 along the flow channel, that is, the leakage is collected through the leakage tank 3211 so that the leakage can be detected by the subsequent leakage detection line. In one scenario, the liquid cooling plate 32 includes a liquid cooling flow channel plate 321 and a liquid cooling flow channel cover plate 322. The liquid cooling flow channel plate 321 is provided with a second opening. After the liquid cooling flow channel plate 321 and the liquid cooling flow channel cover plate 322 are welded and fixed, the leakage tank 3211 is formed at the position of the second opening for collecting the leakage.

[0062] It should also be noted that, in order to ensure that the leak detection line can be stably installed on the first end of the liquid cooling pipe 40, this embodiment preferably provides a sleeve on the first end 101 of the leak detection line. In practical applications, this sleeve is fitted onto both the leak detection line 10 and the liquid cooling pipe 40 to simultaneously fix the first end 101 of the leak detection line and the first end of the liquid cooling pipe 40, preventing movement of the leak detection line 10 when connected to the liquid cooling pipe 40. In this embodiment, the sleeve is preferably a heat-shrinkable sleeve to fix the leak detection line 10 and the liquid cooling pipe 40 together, facilitating accurate detection of leaks in the liquid cooling pipe 40.

[0063] In one possible implementation, it also includes an air-cooled heat dissipation structure body, which is disposed on a designated side of the liquid-cooled heat dissipation structure.

[0064] like Figure 8 As shown, in this embodiment, the heat dissipation structure adds an air-cooling structure to the liquid cooling structure, and the air-cooling structure body is located on the side of the liquid cooling structure where the leakage groove 3211 is formed. The air-cooling structure body includes a heat pipe assembly 50 and fan assemblies 51 located at both ends of the heat pipe assembly. The heat pipe assembly 50 is located near the side of the liquid cooling flow channel plate 321 in the liquid cooling structure where the leakage groove 3211 is formed. The heat pipe assembly 50 includes two heat pipes arranged side-by-side, and the fan assembly 51 includes fans located at both ends of the heat pipes, with fins at the air outlet of each fan. When heat generated during the operation of the electronic device is transferred to the heat pipe assembly 50, the airflow generated by the fan rotation carries away the heat, and the fins expand the heat dissipation area, accelerating heat dissipation. Thus, it simultaneously possesses both liquid cooling and air cooling functions. When leakage is detected in the liquid cooling structure, heat dissipation can continue through the air-cooling structure to ensure the normal operation of the electronic device.

[0065] It should be noted that, in this embodiment, the resistance value of the leakage detection resistor in the leakage detection line 10 changes with the leakage amount, as shown in the following specific details. Figure 7 As shown, the resistance of the leak detection resistor decreases as the leakage volume increases, especially when the leakage volume exceeds 1.2 ml, the rate of decrease increases sharply. Conversely, when the leakage volume is small, the resistance of the leak detection resistor is relatively large.

[0066] like Figure 9 As shown, the resistance value of the detection resistor affects the level of the leakage detection signal. Based on this, the system detects whether there is a leak in the liquid-cooled or air-cooled structure of the electronic device. If the liquid-cooled structure is not leaking, it can operate in the maximum power consumption mode to achieve the highest performance of the entire device. If the liquid-cooled structure is leaking, the pump of the liquid-cooled structure is shut down according to the leakage alarm information, and the electronic device is prohibited from simultaneously operating in both air-cooled and liquid-cooled modes at maximum power consumption; it can only operate in air-cooled mode at the highest power consumption. This not only achieves optimal performance of the electronic device under normal operating conditions, but also allows it to operate in air-cooled mode at the highest power consumption even in the event of a leak, preventing the electronic device from becoming unusable. It also promptly alerts the user to problems with the liquid-cooled structure, prompting timely maintenance and repair.

[0067] This disclosure also provides an electronic device, which includes a device body and any of the above-mentioned leakage detection structure or heat dissipation structure.

[0068] The electronic device may be, but is not limited to, a computer host, a laptop, a monitor, etc. Since the electronic device includes the above-mentioned leakage detection structure or heat dissipation structure, it can achieve all the beneficial effects of the above-mentioned leakage detection structure or heat dissipation structure, which will not be elaborated further here.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0070] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A leakage detection structure, characterized in that, include: A leakage detection line and a leakage detection module, wherein the first end of the leakage detection line is physically connected to the leakage detection object, and the second end of the leakage detection line is communicatively connected to the leakage detection module; The leakage detection line is used to sense whether the object being leaked is leaking and to generate a corresponding leakage sensing signal. The leakage detection module includes a signal acquisition circuit and a leakage detection circuit. The signal acquisition circuit is used to acquire the leakage sensing signal generated by the leakage detection line. The leakage detection circuit is used to generate a leakage detection signal based on the acquired leakage sensing signal and leakage reference signal, so that the processing module of the electronic device can determine whether the electronic device is leaking based on the leakage detection signal.

2. The leakage detection structure according to claim 1, characterized in that, The first end of the leakage detection line is wound and connected to the leakage detection object, or the first end of the leakage detection line is in contact with the leakage detection object, or the first end of the leakage detection line is snapped and connected to the leakage detection object, or the first end of the leakage detection line is adsorbed and connected to the leakage detection object.

3. The leakage detection structure according to claim 1, characterized in that, The number of leakage detection lines is at least one, and the leakage detection module is set up in correspondence with the leakage detection line.

4. The leakage detection structure according to claim 1, characterized in that, The signal acquisition circuit includes: The sensor signal acquisition circuit is used to acquire the sensing signal generated by the leakage detection line and determine that the sensing signal is a leakage sensing signal. A voltage divider circuit is used to divide the leakage sensing signal and convert the leakage sensing signal from a resistance signal into a voltage signal.

5. The leakage detection structure according to claim 1, characterized in that, The leakage detection circuit includes: A leakage signal reference circuit is used to generate the leakage reference signal; A leakage comparator is used to receive the leakage sensing signal and the leakage reference signal, and generate a leakage comparison signal based on the leakage sensing signal and the leakage reference signal; A signal conversion circuit is used to receive the leakage comparison signal and convert the leakage comparison signal into a leakage detection signal.

6. The leakage detection structure according to claim 4, characterized in that, The sensor signal acquisition circuit is also used to acquire the sensing signal generated by the leakage detection line and determine that the sensing signal is a disconnection sensing signal. The leakage detection module also includes a wire breakage detection circuit; The wire breakage detection circuit is used to generate a wire breakage detection signal based on the wire breakage induction signal and the wire breakage reference signal, so as to determine whether the leakage detection line is broken based on the wire breakage detection signal.

7. The leakage detection structure according to claim 6, characterized in that, The disconnection detection circuit includes: A disconnection signal reference circuit is used to generate a disconnection reference signal. A disconnection comparator is used to receive the disconnection sensing signal and the disconnection reference signal, and generate a disconnection detection signal based on the disconnection sensing signal and the disconnection reference signal.

8. A heat dissipation structure, characterized in that, include: The liquid-cooled heat dissipation structure body and the leakage detection structure according to any one of claims 1-7; The liquid cooling heat dissipation structure body includes a liquid cooling plate assembly and liquid cooling pipes; The liquid cooling plate assembly is used to conduct heat from the working components in the electronic device to the liquid cooling pipe; The designated detection end of the liquid cooling pipe is connected to the first end of the leakage detection line so that the leakage detection line can perform leakage detection on the designated detection end of the liquid cooling pipe.

9. The heat dissipation structure according to claim 8, characterized in that, The liquid cooling plate assembly is provided with a liquid leakage groove; The leakage tank is equipped with a corresponding leakage detection line so that the leakage detection line corresponding to the leakage tank can detect leakage in the leakage tank.

10. The heat dissipation structure according to claim 6, characterized in that, It also includes an air-cooled heat dissipation structure body, which is disposed on a designated side of the liquid-cooled heat dissipation structure.

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