Liquid leakage detection device and method

Abstract

The present application discloses a leakage detection device and method. When a liquid cooling tube leaks, the resistance connected to the leakage detection structure is different from the resistance in the normal state, that is, the leakage detection structure can detect whether the liquid cooling tube is leaking; at the same time, the simulation structure can simulate the two states of the liquid cooling tube, namely, the normal state and the abnormal state, so that the comparison structure outputs the corresponding state signal. The simulation structure can simulate different states of the liquid cooling tube, thereby improving the user experience.

Description

Technical Field

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

[0002] At present, liquid cooling is usually used to reduce the temperature of a chassis or server to ensure the normal operation of the chassis or server. Liquid cooling requires the transmission of cooling liquid through a liquid cooling pipe, which involves the problem of detecting whether the liquid cooling pipe is leaking. Summary of the invention

[0003] In view of this, the present application provides a liquid leakage detection device and method, the specific scheme of which is as follows:

[0004] A liquid leakage detection device, comprising:

[0005] The leakage detection structure includes at least a leakage detection circuit and a first resistor, and is used to output a detection signal based on the voltage division data of the access resistor, wherein the access resistor includes at least: a first resistor, or a simulated resistor based on the resistance value generated by the leakage of the liquid cooling tube;

[0006] A comparison structure, for determining a state signal of the liquid cooling tube based on a comparison between the detection signal and a preset threshold value, and outputting the state signal, wherein the state signal can at least indicate that the liquid cooling tube is in a normal state or an abnormal state, wherein the abnormal state at least includes: a liquid leakage state;

[0007] a second resistor, wherein the resistance value of the second resistor is different from the resistance value of the first resistor, and when simulating that the liquid cooling tube is in a liquid leakage state, the second resistor is an access resistor;

[0008] The simulation structure is connected to the leakage detection structure, and simulates the state of the resistor connected to the leakage detection structure when the liquid cooling tube is in a normal state or an abnormal state by controlling the connection between the leakage detection circuit and the first resistor and / or the second resistor in the access resistor, so that the comparison structure can output a state signal.

[0009] Furthermore, the simulation structure includes: a switch group,

[0010] When the liquid leakage detection circuit is connected to the first resistor through the switch group, the state of the resistor connected to the liquid leakage detection circuit is when the liquid cooling tube is in a normal state;

[0011] When the liquid leakage detection circuit is connected to the second resistor through the switch group, the state of the resistor connected to the liquid leakage detection circuit when the liquid cooling tube is in a liquid leakage state is simulated;

[0012] When the liquid leakage detection circuit is disconnected by the switch group, the state of the resistor connected to the liquid leakage detection circuit when the liquid cooling tube is in a fault state is simulated.

[0013] Furthermore, the switch group includes: a first single-pole double-throw switch and a second single-pole double-throw switch, wherein:

[0014] The movable end of the first single-pole double-throw switch is connected to the first end of the leakage detection circuit, and the movable end of the second single-pole double-throw switch is connected to the second end of the leakage detection circuit; the first fixed end of the first single-pole double-throw switch is connected to the first end of the first resistor, and the second fixed end of the first single-pole double-throw switch is connected to the first end of the second resistor; the first fixed end of the second single-pole double-throw switch is connected to the second end of the first resistor, and the second fixed end of the second single-pole double-throw switch is connected to the second end of the second resistor;

[0015] By controlling the connection between the moving end and the fixed end of the first single-pole double-throw switch, and the connection between the moving end and the fixed end of the second single-pole double-throw switch, the state of the resistor connected to the leakage detection circuit is simulated when the liquid cooling tube is in a normal state or an abnormal state.

[0016] Furthermore, the comparison structure at least includes: a comparator group,

[0017] The comparator group compares the detection signal with a preset threshold value and outputs a state signal, wherein the preset threshold value is determined based on at least the detection signal output by the leakage detection structure when the liquid cooling tube is in a normal state.

[0018] Furthermore, the comparator group includes: a first comparator and a second comparator, wherein:

[0019] The positive input end of the first comparator is a first preset threshold value, the reverse input end of the first comparator is connected to the leakage detection structure, and is used to receive the detection signal output by the leakage detection structure, and the output end of the first comparator is used to output a state signal that can at least indicate whether the liquid cooling tube is leaking;

[0020] The positive input end of the second comparator is connected to the leakage detection structure and is used to receive the detection signal output by the leakage detection structure. The reverse input end of the second comparator is a second preset threshold value. The output end of the second comparator is used to output a status signal that can at least characterize the open circuit of the leakage detection structure.

[0021] Furthermore, it also includes: an external power supply and a third resistor,

[0022] The external power supply is connected to the first access terminal of the liquid leakage detection structure through the third resistor, and the second access terminal of the liquid leakage detection structure is grounded;

[0023] At the same time, the external power supply is connected to the inverting input terminal of the first comparator and the positive input terminal of the second comparator respectively through the third resistor.

[0024] A liquid leakage detection method, comprising:

[0025] Obtain control instructions;

[0026] Based on the control instruction, the connection between the liquid leakage detection circuit and the first resistor and / or the second resistor in the access resistor is adjusted to simulate the state of the liquid leakage detection structure access resistor when the liquid cooling pipe is in a normal state or an abnormal state, so as to compare the structure output state signal;

[0027] The leakage detection structure at least includes a leakage detection circuit and a first resistor, which is used to output a detection signal based on the voltage division data of the access resistor, and the access resistor at least includes: a first resistor or a simulated resistor based on the resistance generated by the leakage of the liquid cooling tube; the resistance of the second resistor is different from that of the first resistor, and when simulating that the liquid cooling tube is in a leakage state, the second resistor is an access resistor;

[0028] The comparison structure is used to determine and output a state signal of the liquid cooling tube, and the state signal can at least indicate that the liquid cooling tube is in a normal state or an abnormal state, and the abnormal state at least includes a liquid leakage state.

[0029] Further, the step of adjusting the connection between the leakage detection circuit and the first resistor and / or the second resistor in the connected resistor based on the control instruction to simulate the state of the resistor connected to the leakage detection structure when the liquid cooling pipe is in a normal state or an abnormal state includes:

[0030] When the liquid leakage detection circuit is adjusted to be connected to the first resistor through the switch group based on the control instruction, the state in which the liquid leakage detection circuit is connected to the resistor when the liquid cooling tube is in a normal state;

[0031] When adjusting the leakage detection circuit to be connected to the second resistor through the switch group based on the control instruction, a state of the resistor connected to the leakage detection circuit is simulated when the liquid cooling tube is in a leakage state;

[0032] When the leakage detection circuit is controlled to be disconnected through the switch group based on the control instruction, the state of the resistor connected to the leakage detection circuit when the liquid cooling tube is in a fault state is simulated.

[0033] Furthermore, the status signal is outputted through the comparison structure, including:

[0034] The comparison structure compares the detection signal with a preset threshold and outputs a state signal, wherein the preset threshold is determined based on at least the detection signal output by the leakage detection structure when the liquid cooling tube is in a normal state.

[0035] A readable storage medium for storing at least one set of instructions;

[0036] The instruction set is used to be called and to execute at least any one of the above methods for detecting liquid leakage.

[0037] It can be seen from the above technical scheme that the leakage detection device and method disclosed in the present application include: a leakage detection structure, at least including a leakage detection circuit and a first resistor, for outputting a detection signal based on the voltage division data of the access resistor, and the access resistor at least includes: a first resistor or an analog resistor based on the resistance generated by the leakage of the liquid cooling tube; a comparison structure, for determining and outputting a state signal of the liquid cooling tube based on the comparison of the detection signal with a preset threshold, the state signal can at least characterize that the liquid cooling tube is in a normal state or an abnormal state, and the abnormal state at least includes: a leakage state; a second resistor, the resistance value of the second resistor is different from the resistance value of the first resistor, and when the liquid cooling tube is simulated to be in a leakage state, the second resistor is the access resistor; a simulation structure, connected to the leakage detection structure, by controlling the connection between the leakage detection resistor and the first resistor and / or the second resistor in the access resistor, the state of the resistor connected to the leakage detection structure when the liquid cooling tube is in a normal state or an abnormal state is simulated, so as to facilitate the comparison structure to output the state signal. In this scheme, when the liquid cooling tube leaks, the resistance connected to the leakage detection structure is different from the resistance in the normal state, that is, the leakage detection structure can detect whether the liquid cooling tube is leaking; at the same time, the simulation structure can simulate the two states of the liquid cooling tube in a normal state or an abnormal state, so that the comparison structure outputs a corresponding state signal. The simulation structure realizes the simulation of different states of the liquid cooling tube, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of a liquid leakage detection device disclosed in an embodiment of the present application;

[0040] Figure 2 A schematic diagram of the structure of a liquid leakage detection device disclosed in an embodiment of the present application;

[0041] Figure 3 A schematic diagram of the connection between a liquid leakage detection structure and a switch group disclosed in an embodiment of the present application;

[0042] Figure 4 A schematic diagram of the structure of a liquid leakage detection device disclosed in an embodiment of the present application;

[0043] Figure 5 A schematic diagram of the structure of a liquid leakage detection device disclosed in an embodiment of the present application;

[0044] Figure 6 This is a flow chart of a liquid leakage detection method disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] The present application discloses a liquid leakage detection device, the structural schematic diagram of which is shown in FIG. Figure 1 As shown, including:

[0047] A liquid leakage detection structure 11 , a comparison structure 12 , a second resistor 13 and a simulation structure 14 .

[0048] The leakage detection structure 11 at least includes: a leakage detection circuit and a first resistor, which is used to output a detection signal based on the voltage division data of the access resistor, and the access resistor at least includes: a first resistor, or a simulated resistor based on the resistance value generated by the leakage of the liquid cooling tube;

[0049] The comparison structure 12 is used to determine the state signal of the liquid cooling tube based on the comparison between the detection signal and the preset threshold value, and output the state signal, the state signal can at least indicate that the liquid cooling tube is in a normal state or an abnormal state, and the abnormal state at least includes: a liquid leakage state;

[0050] The resistance value of the second resistor 13 is different from the resistance value of the first resistor. When the simulated liquid cooling tube is in a leaking state, the second resistor is an access resistor.

[0051] The simulation structure 14 is connected to the leakage detection structure. By controlling the connection between the leakage detection circuit and the first resistor and / or the second resistor in the connected resistor, the state of the resistor connected to the leakage detection structure when the liquid cooling pipe is in a normal state or an abnormal state is simulated to facilitate the comparison of the structure output status signal.

[0052] When cooling a chassis or server, liquid cooling can be used to reduce the temperature of the chassis or server. Liquid cooling requires outputting the coolant through a liquid cooling pipe so that the coolant can reach the periphery of the chassis or server to achieve heat dissipation.

[0053] Since the liquid cooling pipe needs to be arranged at the periphery of the chassis or the server, if the liquid cooling pipe leaks, it may affect the normal operation of the chassis or the server. Therefore, it is necessary to detect whether the liquid cooling pipe is leaking.

[0054] In the present scheme, the leakage detection structure is used to detect whether the liquid cooling tube is leaking. Specifically, the leakage detection structure includes at least a leakage detection circuit and a first resistor. Different access resistors of the leakage detection circuit will result in different voltage division data of the access resistors, thereby causing different values ​​of the detection signal output by the leakage detection structure.

[0055] The comparison structure is used to determine the status signal of the liquid cooling tube based on the comparison between the detection signal and the preset threshold value, that is, the comparison structure is used for numerical comparison. When the value of the detection signal output by the leakage detection structure is different, the value of the party involved in the comparison in the comparison structure will be different. Since the preset threshold value is certain, then when the detection signal is different, the comparison result may be different, which may cause the status signal output by the comparison structure to be different.

[0056] For example: when the first detection signal received by the comparison structure is greater than the preset threshold, the output status signal of the liquid cooling tube is the first state; when the second detection signal received by the comparison structure is greater than the preset threshold, the output status signal of the liquid cooling tube is still the first state; if the third detection signal received by the comparison structure is less than the preset threshold, the output status signal of the liquid cooling tube is a second state different from the first state.

[0057] The status signal can characterize whether the liquid cooling tube is in a normal state or an abnormal state. As long as the access resistance of the leakage detection circuit is determined, it can be determined based on the comparison of the comparison structure whether the current state of the liquid cooling tube is normal or abnormal. The abnormal state may be a leakage state.

[0058] It should be noted that the abnormal state may be a leakage state of the liquid cooling pipe, or other states, such as a failure state of a leakage detection structure, and the abnormal state is not specifically limited here.

[0059] Specifically, the access resistor of the leakage detection circuit can be a first resistor or an analog resistor whose resistance is generated based on the leakage of the liquid cooling tube. The analog resistor has a different value from the first resistor. When the analog resistor has a different value from the first resistor, when the access resistor is the first resistor or the access resistor is the analog resistor, the voltage divider of the access resistor will be different, which may cause the output result of the comparison structure to be different.

[0060] The leakage detection structure can output different detection signals based on different access resistors, and further determine whether the liquid cooling tube is in a normal state by comparing the detection signal with a preset threshold through a comparison structure, thereby realizing the judgment of the state of the liquid cooling tube.

[0061] Furthermore, the leakage detection device disclosed in this embodiment may also include: a simulation structure, through which the state of the resistor connected to the liquid cooling tube when it is in different states can be simulated.

[0062] When the normal state of the liquid cooling pipe is simulated by the simulation structure, it is sufficient to directly control the connection between the leakage detection resistor and the first resistor. In this case, it is the normal state of the simulated liquid cooling pipe and also the normal state of the actual liquid cooling pipe.

[0063] When simulating the leakage state of the liquid cooling tube through the simulation structure, since the access resistor of the leakage detection circuit is a simulated resistor based on the resistance generated by the leakage of the liquid cooling tube when the actual leakage state occurs, when the actual liquid cooling tube leaks, the resistance is caused by the short circuit of the liquid cooling tube caused by the leakage, and it has no physical resistance. Therefore, when simulating the leakage state, it is necessary to add an additional resistor, that is, the second resistor, so that when simulating the leakage state of the liquid cooling tube, the second resistor is used as the access resistor of the leakage detection structure, and the voltage is divided by the second resistor to realize the simulation of the leakage state of the liquid cooling tube.

[0064] Based on the simulation structure and the leakage detection structure, the simulation of different states of the liquid cooling pipe is realized. Combined with the comparison of the comparison structure, the simulation and detection of different states of the leakage pipe are realized.

[0065] The leakage detection device disclosed in the present embodiment includes: a leakage detection structure, which at least includes a leakage detection circuit and a first resistor, and is used to output a detection signal based on the voltage division data of the access resistor, and the access resistor at least includes: a first resistor or an analog resistor based on the resistance generated by the leakage of the liquid cooling tube; a comparison structure, which is used to determine and output a state signal of the liquid cooling tube based on the comparison of the detection signal with a preset threshold value, and the state signal can at least characterize that the liquid cooling tube is in a normal state or an abnormal state, and the abnormal state at least includes: a leakage state; a second resistor, the resistance value of the second resistor is different from the resistance value of the first resistor, and when the liquid cooling tube is simulated to be in a leakage state, the second resistor is the access resistor; a simulation structure, which is connected to the leakage detection structure, and by controlling the connection between the leakage detection resistor and the first resistor and / or the second resistor in the access resistor, the state of the resistor connected to the leakage detection structure when the liquid cooling tube is in a normal state or an abnormal state is simulated, so as to facilitate the comparison structure to output the state signal. In this scheme, when the liquid cooling tube leaks, the resistance connected to the leakage detection structure is different from the resistance in the normal state, that is, the leakage detection structure can detect whether the liquid cooling tube is leaking; at the same time, the simulation structure can simulate the two states of the liquid cooling tube in a normal state or an abnormal state, so that the comparison structure outputs a corresponding state signal. The simulation structure realizes the simulation of different states of the liquid cooling tube, thereby improving the user experience.

[0066] This embodiment discloses a liquid leakage detection device, and its structural schematic diagram is shown in FIG. Figure 2 As shown, including:

[0067] Liquid leakage detection structure 21 , comparison structure 22 , second resistor 23 , switch group 24 .

[0068] In addition to the same structure as the previous embodiment, the analog structure in this embodiment is the switch group 24.

[0069] Among them, when the leakage detection circuit is connected to the first resistor through the switch group, the state of the resistor connected to the leakage detection circuit is when the liquid cooling pipe is in a normal state; when the leakage detection circuit is connected to the second resistor through the switch group, the state of the resistor connected to the leakage detection circuit is simulated when the liquid cooling pipe is in a leakage state; when the leakage detection circuit is disconnected through the switch group, the state of the resistor connected to the leakage detection circuit is simulated when the leakage detection structure is in a fault state.

[0070] The simulation structure used to simulate the liquid cooling tube in a normal state or an abnormal state is actually a switch group. The switch group switches the access resistor connected to the leakage detection structure to realize the simulation of the normal state and abnormal state of the liquid cooling tube. At the same time, it can also realize the simulation of the leakage detection circuit in a non-state state.

[0071] Specifically, when the liquid cooling tube is in a normal state, the leakage detection circuit in the leakage detection structure is directly connected to the first resistor in the leakage detection structure, and the power supply voltage is divided by the first resistor. At this time, the state signal output by the comparison structure based on the detection signal output by the voltage division data of the first resistor and the preset threshold value is the state signal when the liquid cooling tube is in a normal state;

[0072] Then, when simulating the normal state of the liquid cooling pipe, the switch group controls the leakage detection circuit and the first resistor to be turned on, that is, the simulation of the normal state of the liquid cooling pipe and the actual normal state of the liquid cooling pipe have the same specific connection structure, that is, the simulation of the normal state of the liquid cooling pipe is actually the normal state of the liquid cooling pipe.

[0073] When the liquid cooling tube is in an abnormal state, the leakage detection circuit in the leakage detection structure is not connected to an actual resistor, but is implemented through a virtual resistor.

[0074] For example, when the liquid cooling tube is in a leaking state, at this time, the connection between the leakage detection circuit and the first resistor is short-circuited, and the leakage detection circuit is connected to the virtual first analog resistor, so that the comparison structure can output a state signal that the liquid cooling tube is in a leaking state, wherein the resistance value of the first virtual resistor is smaller than the resistance value of the first resistor, so as to ensure that the current does not pass through the first resistor;

[0075] When simulating the leakage state of the liquid cooling tube, the leakage detection circuit and the second resistor are turned on through the switch group. At the same time, the leakage detection resistor and the first resistor are disconnected through the switch group. The second resistor is regarded as a virtual first simulation resistor. The detection signal output based on the voltage division data of the second resistor is compared with the preset threshold through the comparison structure to determine that the liquid cooling tube is in a leakage state, thereby realizing the simulation of the leakage state of the liquid cooling tube.

[0076] Among them, the resistance value of the second resistor is smaller than the resistance value of the first resistor. Of course, the resistance value of the second resistor is not limited to be the same as the resistance value of the first virtual resistor. As long as it can be ensured that after the leakage detection circuit is connected to the second resistor, the voltage division of the second resistor is smaller than the voltage division of the first resistor after the leakage detection circuit is connected to the first resistor, and the voltage division can meet the comparison conditions of the comparison structure.

[0077] If the liquid leakage detection circuit is in an open circuit state, at this time, the connection between the liquid leakage detection circuit and the first resistor is disconnected, so that the comparison structure can output a state signal that the liquid cooling tube is in an open circuit state.

[0078] When simulating the open circuit state of the leakage detection circuit, as long as the switch group is used to control the leakage detection circuit to be neither connected to the first resistor nor to the second resistor, the open circuit state of the leakage detection resistor is determined.

[0079] Furthermore, the switch group includes: a first single-pole double-throw switch and a second single-pole double-throw switch.

[0080] Among them, the movable end of the first single-pole double-throw switch is connected to the first end of the leakage detection circuit, and the movable end of the second single-pole double-throw switch is connected to the second end of the leakage detection circuit; the first fixed end of the first single-pole double-throw switch is connected to the first end of the first resistor, and the second fixed end of the first single-pole double-throw switch is connected to the first end of the second resistor; the first fixed end of the second single-pole double-throw switch is connected to the second end of the first resistor, and the second fixed end of the second single-pole double-throw switch is connected to the second end of the second resistor.

[0081] By controlling the connection between the moving end and the fixed end of the first single-pole double-throw switch, and the connection between the moving end and the fixed end of the second single-pole double-throw switch, the state of the resistor connected to the leakage detection circuit when the liquid cooling pipe is in a normal state or an abnormal state, and the state of the resistor connected when the leakage detection circuit is in an abnormal state are simulated.

[0082] like Figure 3 As shown, it includes: a leakage detection circuit 31, a first single-pole double-throw switch K1, a second single-pole double-throw switch K2, a first resistor R1 and a second resistor R2.

[0083] Specifically, if the movable end of the first single-pole double-throw switch K1 is connected to the first fixed end of the first single-pole double-throw switch K1, and at the same time, the movable end of the second single-pole double-throw switch K2 is connected to the first fixed end of the second single-pole double-throw switch K2, then the leakage detection circuit 31 is connected to the first end of the first resistor R1 through the first single-pole double-throw switch K1, and the leakage detection circuit 31 is connected to the second end of the first resistor R1 through the second single-pole double-throw switch K2, that is, the leakage detection circuit 31 is connected to the first resistor R1 through the switch group, realizing the state in which the leakage detection circuit is connected to the resistor when the liquid cooling tube is in a normal state;

[0084] If the movable end of the first single-pole double-throw switch K1 is connected to the second fixed end of the first single-pole double-throw switch K1, and at the same time, the movable end of the second single-pole double-throw switch K2 is connected to the second fixed end of the second single-pole double-throw switch K2, then the leakage detection circuit 31 is connected to the first end of the second resistor R2 through the first single-pole double-throw switch K1, and the leakage detection circuit 31 is connected to the second end of the second resistor R2 through the second single-pole double-throw switch K2, that is, the leakage detection circuit 31 is connected to the second resistor R2 through the switch group, realizing the state of the leakage detection circuit connected to the resistor when simulating the leakage state of the liquid cooling tube;

[0085] If the movable end of the first single-pole double-throw switch K1 is connected to the first fixed end of the first single-pole double-throw switch K1, and at the same time, the movable end of the second single-pole double-throw switch K2 is connected to the second fixed end of the second single-pole double-throw switch K2; or, the movable end of the first single-pole double-throw switch K1 is connected to the second fixed end of the first single-pole double-throw switch K1, and at the same time, the movable end of the second single-pole double-throw switch K2 is connected to the first fixed end of the second single-pole double-throw switch K2, then at this time, the leakage detection circuit 31 cannot achieve line conduction through the switch group, and it is actually in a disconnected state, thereby realizing the state when the simulation leakage detection circuit is in a disconnected state.

[0086] The leakage detection device disclosed in the present embodiment includes: a leakage detection structure, which at least includes a leakage detection circuit and a first resistor, and is used to output a detection signal based on the voltage division data of the access resistor, and the access resistor at least includes: a first resistor or an analog resistor based on the resistance generated by the leakage of the liquid cooling tube; a comparison structure, which is used to determine and output a state signal of the liquid cooling tube based on the comparison of the detection signal with a preset threshold value, and the state signal can at least characterize that the liquid cooling tube is in a normal state or an abnormal state, and the abnormal state at least includes: a leakage state; a second resistor, the resistance value of the second resistor is different from the resistance value of the first resistor, and when the liquid cooling tube is simulated to be in a leakage state, the second resistor is the access resistor; a simulation structure, which is connected to the leakage detection structure, and by controlling the connection between the leakage detection resistor and the first resistor and / or the second resistor in the access resistor, the state of the resistor connected to the leakage detection structure when the liquid cooling tube is in a normal state or an abnormal state is simulated, so as to facilitate the comparison structure to output the state signal. In this scheme, when the liquid cooling tube leaks, the resistance connected to the leakage detection structure is different from the resistance in the normal state, that is, the leakage detection structure can detect whether the liquid cooling tube is leaking; at the same time, the simulation structure can simulate the two states of the liquid cooling tube in a normal state or an abnormal state, so that the comparison structure outputs a corresponding state signal. The simulation structure realizes the simulation of different states of the liquid cooling tube, thereby improving the user experience.

[0087] This embodiment discloses a liquid leakage detection device, and its structural schematic diagram is shown in FIG. Figure 4 As shown, including:

[0088] Liquid leakage detection structure 41 , comparator group 42 , second resistor 43 , analog structure 44 .

[0089] In addition to the same structure as the previous embodiment, the comparison structure in this embodiment at least includes a comparator group.

[0090] The detection signal is compared with a preset threshold by a comparator group, and a state signal is output, wherein the preset threshold is determined based on at least the detection signal output by the leakage detection structure when the liquid cooling tube is in a normal state.

[0091] The comparison structure is a comparator group, and the comparator is used to compare the sizes of two values. The leakage detection structure outputs a detection signal based on the voltage division data of the access resistor of the leakage detection circuit. The comparator group receives the detection signal, compares the detection signal with the preset threshold, and outputs the comparison result. Based on different comparison results, the status signal will be different.

[0092] For example: if the comparison result of the comparator group determines that the detection signal is greater than the preset threshold, the output status signal indicates that the liquid cooling tube is in a normal state; as long as the value of the detection signal is greater than the preset threshold, it can indicate that the liquid cooling tube is in a normal state; if the comparison result of the comparator group determines that the detection signal is not greater than the preset threshold, the output status signal indicates that the liquid cooling tube is in an abnormal state.

[0093] Of course, there can be one comparator in the comparator group, and the state of the liquid cooling tube is determined by the output result of the comparator; there can also be two comparators, and the state of the liquid cooling tube is jointly determined by the output results of the two comparators; or there can be three comparators, and the state of the liquid cooling tube is jointly determined by the output results of the three comparators.

[0094] For example: if the comparator group has only one comparator, if the output result of the comparator is pulled low, it indicates that the liquid cooling tube is normal; if the output result of the comparator is pulled high, it indicates that the liquid cooling tube is in an abnormal state; if the comparator group has two comparators, if the output results of both comparators are pulled low, it indicates that the liquid cooling tube is normal; if the output result of one of the comparators is pulled low and the output result of the other comparator is pulled high, it indicates that it is currently in an abnormal state. Based on the comparator that is pulled high, it can be determined whether the current liquid cooling tube is in a leakage state, or the leakage detection circuit is in an open circuit state.

[0095] The preset threshold is determined based on at least a detection signal output by the liquid leakage detection structure when the liquid cooling pipe is in a normal state.

[0096] When the liquid cooling tube is in a normal state, the leakage detection circuit is connected to the first resistor. At this time, since the resistance value of the first resistor is certain, then when the power supply remains unchanged, the voltage division data of the first resistor is certain, and the value of the detection signal output by the leakage detection circuit based on the voltage division data is also certain. Then, the size of the preset threshold value can be determined based on the detection signal output by the leakage detection structure when the liquid cooling tube is in a normal state. The preset threshold value can be the range threshold of the detection signal output by the leakage detection structure when the liquid cooling tube is in a normal state. As long as the detection signal output by the leakage detection structure exceeds a certain threshold range of the detection signal output by the leakage detection structure when the liquid cooling tube is in a normal state, it can be determined that the liquid cooling tube is in an abnormal state.

[0097] Furthermore, the comparator group may include: a first comparator and a second comparator.

[0098] Among them, the positive input end of the first comparator is the first preset threshold, the reverse input end of the first comparator is connected to the leakage detection structure, and is used to receive the detection signal output by the leakage detection structure, and the output end of the first comparator is used to output a status signal that can at least characterize whether the liquid cooling tube is leaking; the positive input end of the second comparator is connected to the leakage detection structure, and is used to receive the detection signal output by the leakage detection structure, the reverse input end of the second comparator is the second preset threshold, and the output end of the second comparator is used to output a status signal that can at least characterize whether the leakage detection structure is open.

[0099] The detection signal is compared with the corresponding preset threshold value by two comparators respectively, so as to determine the state of the liquid cooling tube and / or the liquid leakage detection circuit.

[0100] In addition, to realize the voltage-dividing function of the access resistor of the leakage detection circuit, a power supply and another resistor, namely, an external power supply and a third resistor, are also required. The external power supply provides voltage, and the voltage of the external power supply is jointly divided by the access resistor and the third resistor of the leakage detection circuit. Since the third resistor is a fixed resistor and the external power supply is a fixed power supply, when the third resistor is determined, the greater the resistance value of the access resistor, the greater the voltage allocated to the leakage detection structure, and the smaller the resistance value of the access resistor, the smaller the voltage allocated to the leakage detection structure.

[0101] like Figure 5 As shown, it includes: a first comparator A1, a second comparator A2, a leakage detection circuit 51, a first resistor R1, a second resistor R2, a third resistor R3, a first single-pole double-throw switch K1, a second single-pole double-throw switch K2, an external power supply VCC, and an analog resistor R2'. The virtual resistor R2' is not an actual resistor, but a virtual resistor when the leakage tube leaks, so it can be represented by a dotted line.

[0102] by Figure 5 Taking this as an example, all components except the leakage detection circuit in the leakage detection device are arranged on the main board. The leakage detection circuit can be arranged below the liquid cooling pipe or wrapped around the liquid cooling pipe.

[0103] When the liquid cooling tube works normally, the first single-pole double-throw switch K1 and the second single-pole double-throw switch K2 are both connected to the first resistor R1, and the voltage of the external power supply is shared by the first resistor R1 and the third resistor R3. If the first resistor is 100K ohms and the third resistor is 100K ohms, the first resistor and the third resistor each share half of the voltage of the external power supply. If the external power supply voltage is 5V, the divided voltage of the first resistor is 2.5V, and the divided voltage of the third resistor is 2.5V.

[0104] At this time, the detection signal output by the leakage detection circuit reaches the reverse input end of the first comparator, and the positive input end of the first comparator is the first preset threshold value, which can be 1V. Since 1V is less than 2.5V, the positive input end of the first comparator is less than the reverse input end, and the output of the first comparator is low; the detection signal output by the leakage detection circuit reaches the positive input end of the second comparator, and the reverse input end of the second comparator is the second preset threshold value, which can be 3.3V. Since 2.5V is less than 3.3V, the positive input end of the second comparator is less than the reverse input end, and the output of the second comparator is low. That is, when the liquid cooling tube is in normal working state, the outputs of the first comparator and the second comparator are both low.

[0105] When the normal working state of the liquid cooling pipe is simulated, it is the same as the actual normal working state of the liquid cooling pipe, that is, the leakage detection power supply is connected to the first resistor.

[0106] When the liquid cooling tube is in a leaking state, at this time, the first single-pole double-throw switch K1 and the second single-pole double-throw switch K2 are both connected to the first resistor R1. Since it is currently in a leaking state, the leakage detection circuit is in a short-circuit state, generating a virtual analog resistor R2', and the resistance of the analog resistor R2' is much smaller than the resistance of the first resistor R1. At this time, the leakage detection circuit and the analog resistor R2' are in a conducting state, and the pressure of the external power supply is shared by the analog resistor R2' and the third resistor. Among them, if the analog resistor R2' is 20K ohms, the resistance ratio of the analog resistor R2' to the third resistor R3 is: 1:5. When the external power supply voltage is 5V, the voltage division of the analog resistor is 0.83V, and the detection signal output by the leakage detection circuit is 0.83V.

[0107] At this time, the detection signal output by the leakage detection circuit reaches the reverse input terminal of the first comparator. Since the 1V of the positive input terminal of the first comparator is greater than the 0.83V input at its reverse input terminal, the output of the first comparator is high, indicating that there is a leakage state. At this time, the positive input terminal of the second comparator is still smaller than its reverse input terminal, and the output result of the second comparator is not considered.

[0108] When simulating the leakage state of the liquid cooling tube, the first single-pole double-throw switch K1 and the second single-pole double-throw switch K2 are no longer connected to the first resistor, but are both connected to the second resistor, so that the leakage detection circuit is connected to the second resistor through the first single-pole double-throw switch and the second single-pole double-throw switch. To simulate the leakage state of the liquid cooling tube, it is necessary to make the resistance of the resistor connected to the leakage detection circuit much smaller than the resistance of the first resistor, such as: the resistance of the second resistor is 4.7K ohms. At this time, the detection signal output by the leakage detection circuit will be less than 0.5V.

[0109] At this time, the detection signal output by the leakage detection circuit reaches the reverse input terminal of the first comparator. Since the 1V of the positive input terminal of the first comparator is greater than the 0.5V input at its reverse input terminal, the output of the first comparator is high, indicating that there is a leakage state; at this time, the positive input terminal of the second comparator is still less than its reverse input terminal, and the output result of the second comparator is not considered. The simulation of the leakage state of the liquid cooling tube is realized in the above manner.

[0110] If the leakage detection circuit is in an open circuit state, the leakage detection circuit cannot be connected to any resistor. At this time, the detection signal output by the leakage detection circuit is directly the full voltage of the external power supply 5V. At this time, the output result of the first comparator will not change, but the output result of the second comparator will be pulled up because the positive input terminal is greater than its reverse input terminal. At this time, it can be determined that the leakage detection circuit is faulty or the sensor is faulty.

[0111] When simulating the open circuit state of the leakage detection circuit, the first single-pole double-throw switch K1 and the second single-pole double-throw switch K2 can be connected to the first resistor R1 and the second resistor R2 respectively, that is, when the first single-pole double-throw switch K1 is connected to the first resistor R1, the second single-pole double-throw switch K2 is connected to the second resistor R2, or, when the first single-pole double-throw switch K1 is connected to the second resistor R2, the second single-pole double-throw switch K2 is connected to the first resistor R1, so that the leakage detection circuit cannot be turned on through the first single-pole double-throw switch and the second single-pole double-throw switch, forming an open circuit, thereby realizing the simulation of the open circuit state.

[0112] The leakage detection device disclosed in the present embodiment includes: a leakage detection structure, which at least includes a leakage detection circuit and a first resistor, and is used to output a detection signal based on the voltage division data of the access resistor, and the access resistor at least includes: a first resistor or an analog resistor based on the resistance generated by the leakage of the liquid cooling tube; a comparison structure, which is used to determine and output a state signal of the liquid cooling tube based on the comparison of the detection signal with a preset threshold value, and the state signal can at least characterize that the liquid cooling tube is in a normal state or an abnormal state, and the abnormal state at least includes: a leakage state; a second resistor, the resistance value of the second resistor is different from the resistance value of the first resistor, and when the liquid cooling tube is simulated to be in a leakage state, the second resistor is the access resistor; a simulation structure, which is connected to the leakage detection structure, and by controlling the connection between the leakage detection resistor and the first resistor and / or the second resistor in the access resistor, the state of the resistor connected to the leakage detection structure when the liquid cooling tube is in a normal state or an abnormal state is simulated, so as to facilitate the comparison structure to output the state signal. In this scheme, when the liquid cooling tube leaks, the resistance connected to the leakage detection structure is different from the resistance in the normal state, that is, the leakage detection structure can detect whether the liquid cooling tube is leaking; at the same time, the simulation structure can simulate the two states of the liquid cooling tube in a normal state or an abnormal state, so that the comparison structure outputs a corresponding state signal. The simulation structure realizes the simulation of different states of the liquid cooling tube, thereby improving the user experience.

[0113] This embodiment discloses a method for detecting liquid leakage, and its flow chart is as follows: Figure 6 As shown, including:

[0114] Step S61, obtaining a control instruction;

[0115] Step S62, based on the control instruction, adjust the connection between the leakage detection circuit and the first resistor and / or the second resistor in the access resistor to simulate the state of the leakage detection structure access resistor when the liquid cooling pipe is in a normal state or an abnormal state, so as to compare the structure output state signal.

[0116] The leakage detection structure includes at least a leakage detection circuit and a first resistor, which is used to output a detection signal based on the voltage division data of the access resistor, and the access resistor includes at least: a first resistor or a simulated resistor based on the resistance generated by the leakage of the liquid cooling tube; the resistance of the second resistor is different from that of the first resistor, and when the simulated liquid cooling tube is in a leakage state, the second resistor is the access resistor;

[0117] The comparison structure is used to determine and output a state signal of the liquid cooling tube, and the state signal can at least indicate whether the liquid cooling tube is in a normal state or an abnormal state, and the abnormal state at least includes a liquid leakage state.

[0118] Further, based on the control instruction, the connection between the leakage detection circuit and the first resistor and / or the second resistor in the access resistor is adjusted to simulate the state of the leakage detection structure access resistor when the liquid cooling pipe is in a normal state or an abnormal state, including:

[0119] When the liquid leakage detection circuit is connected to the first resistor through the switch group based on the control instruction, the state of the resistor connected to the liquid leakage detection circuit is when the liquid cooling tube is in a normal state;

[0120] When the leakage detection circuit is adjusted to be connected to the second resistor through the switch group based on the control instruction, the state of the resistor connected to the leakage detection circuit is simulated when the liquid cooling tube is in a leakage state;

[0121] When the leakage detection circuit is controlled to be disconnected through the switch group based on the control instruction, the state of the resistor connected to the leakage detection circuit when the liquid cooling tube is in a fault state is simulated.

[0122] Furthermore, the status signal is outputted through the comparison structure, including:

[0123] The comparison structure compares the detection signal with a preset threshold and outputs a state signal, wherein the preset threshold is determined based on at least the detection signal output by the leakage detection structure when the liquid cooling tube is in a normal state.

[0124] The liquid leakage detection method disclosed in this embodiment is implemented based on the liquid leakage detection device disclosed in the above embodiments, which will not be described in detail here.

[0125] The leakage detection method disclosed in the present embodiment is applied to a leakage detection device, which includes: a leakage detection structure, which at least includes a leakage detection circuit and a first resistor, and is used to output a detection signal based on the voltage division data of the access resistor, and the access resistor at least includes: a first resistor or an analog resistor based on the resistance generated by the leakage of the liquid cooling tube; a comparison structure, which is used to determine and output a state signal of the liquid cooling tube based on the comparison of the detection signal with a preset threshold value, and the state signal can at least characterize that the liquid cooling tube is in a normal state or an abnormal state, and the abnormal state at least includes: a leakage state; a second resistor, the resistance value of the second resistor is different from the resistance value of the first resistor, and when the liquid cooling tube is simulated to be in a leakage state, the second resistor is the access resistor; a simulation structure, which is connected to the leakage detection structure, and by controlling the connection between the leakage detection resistor and the first resistor and / or the second resistor in the access resistor, the state of the resistor connected to the leakage detection structure when the liquid cooling tube is in a normal state or an abnormal state is simulated, so as to facilitate the comparison structure to output the state signal. In this scheme, when the liquid cooling tube leaks, the resistance connected to the leakage detection structure is different from the resistance in the normal state, that is, the leakage detection structure can detect whether the liquid cooling tube is leaking; at the same time, the simulation structure can simulate the two states of the liquid cooling tube in a normal state or an abnormal state, so that the comparison structure outputs a corresponding state signal. The simulation structure realizes the simulation of different states of the liquid cooling tube, thereby improving the user experience.

[0126] The embodiment of the present application also provides a readable storage medium on which a computer program is stored. The computer program is loaded and executed by a processor to implement the various steps of the above-mentioned leakage detection method. The specific implementation process can refer to the description of the corresponding part of the above-mentioned embodiment, which will not be repeated in this embodiment.

[0127] The present application also proposes a computer program product or a computer program, which includes a computer instruction stored in a computer-readable storage medium. The processor of the electronic device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the electronic device executes the method provided in various optional implementations of the above-mentioned liquid leakage detection method or liquid leakage detection system. The specific implementation process can refer to the description of the above-mentioned corresponding embodiment, and will not be repeated.

[0128] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0129] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0130] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0131] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A liquid leakage detection device, comprising: The leakage detection structure includes at least a leakage detection circuit and a first resistor, and is used to output a detection signal based on the voltage division data of the access resistor, wherein the access resistor includes at least: a first resistor, or a simulated resistor based on the resistance value generated by the leakage of the liquid cooling tube; A comparison structure, for determining a state signal of the liquid cooling tube based on a comparison between the detection signal and a preset threshold value, and outputting the state signal, wherein the state signal can at least indicate that the liquid cooling tube is in a normal state or an abnormal state, wherein the abnormal state at least includes: a liquid leakage state; a second resistor, wherein the resistance value of the second resistor is different from the resistance value of the first resistor, and when simulating that the liquid cooling tube is in a liquid leakage state, the second resistor is an access resistor; A simulation structure connected to the liquid leakage detection structure, which simulates the state of the resistor connected to the liquid leakage detection structure when the liquid cooling tube is in a normal state or an abnormal state by controlling the connection between the liquid leakage detection circuit and the first resistor and / or the second resistor in the connected resistor, so that the comparison structure outputs a state signal; Wherein, the simulation structure includes: a switch group, When the liquid leakage detection circuit is connected to the first resistor through the switch group, the state of the resistor connected to the liquid leakage detection circuit is when the liquid cooling tube is in a normal state; When the liquid leakage detection circuit is connected to the second resistor through the switch group, the state of the resistor connected to the liquid leakage detection circuit when the liquid cooling tube is in a liquid leakage state is simulated; When the liquid leakage detection circuit is disconnected by the switch group, the state of the resistor connected to the liquid leakage detection circuit when the liquid cooling tube is in a fault state is simulated.

2. The device according to claim 1, wherein: The switch group includes: a first single-pole double-throw switch and a second single-pole double-throw switch, wherein: The movable end of the first single-pole double-throw switch is connected to the first end of the leakage detection circuit, and the movable end of the second single-pole double-throw switch is connected to the second end of the leakage detection circuit; the first fixed end of the first single-pole double-throw switch is connected to the first end of the first resistor, and the second fixed end of the first single-pole double-throw switch is connected to the first end of the second resistor; the first fixed end of the second single-pole double-throw switch is connected to the second end of the first resistor, and the second fixed end of the second single-pole double-throw switch is connected to the second end of the second resistor; By controlling the connection between the moving end and the fixed end of the first single-pole double-throw switch, and the connection between the moving end and the fixed end of the second single-pole double-throw switch, the state of the resistor connected to the leakage detection circuit is simulated when the liquid cooling tube is in a normal state or an abnormal state.

3. The device according to claim 1, wherein: The comparison structure at least includes: a comparator group, The comparator group compares the detection signal with a preset threshold value and outputs a state signal, wherein the preset threshold value is determined based on at least the detection signal output by the leakage detection structure when the liquid cooling tube is in a normal state.

4. The device according to claim 3, wherein: The comparator group includes: a first comparator and a second comparator, wherein: The positive input end of the first comparator is a first preset threshold value, the reverse input end of the first comparator is connected to the leakage detection structure, and is used to receive the detection signal output by the leakage detection structure, and the output end of the first comparator is used to output a state signal that can at least indicate whether the liquid cooling tube is leaking; The positive input end of the second comparator is connected to the leakage detection structure and is used to receive the detection signal output by the leakage detection structure. The reverse input end of the second comparator is a second preset threshold value. The output end of the second comparator is used to output a status signal that can at least characterize the open circuit of the leakage detection structure.

5. The device according to claim 4, wherein: Also includes: External power supply and third resistor, The external power supply is connected to the first access terminal of the liquid leakage detection structure through the third resistor, and the second access terminal of the liquid leakage detection structure is grounded; At the same time, the external power supply is connected to the inverting input terminal of the first comparator and the positive input terminal of the second comparator respectively through the third resistor.

6. A method for detecting a liquid leakage, comprising: Obtain control instructions; Based on the control instruction, the connection between the liquid leakage detection circuit and the first resistor and / or the second resistor in the access resistor is adjusted to simulate the state of the liquid leakage detection structure access resistor when the liquid cooling pipe is in a normal state or an abnormal state, so as to compare the structure output state signal; The leakage detection structure at least includes a leakage detection circuit and a first resistor, which is used to output a detection signal based on the voltage division data of the access resistor, and the access resistor at least includes: a first resistor or a simulated resistor based on the resistance generated by the leakage of the liquid cooling tube; the resistance of the second resistor is different from that of the first resistor, and when simulating that the liquid cooling tube is in a leakage state, the second resistor is an access resistor; The comparison structure is used to determine and output a state signal of the liquid cooling tube, wherein the state signal can at least indicate that the liquid cooling tube is in a normal state or an abnormal state, wherein the abnormal state at least includes a liquid leakage state; Wherein, the step of adjusting the connection between the leakage detection circuit and the first resistor and / or the second resistor in the connected resistor based on the control instruction to simulate the state of the resistor connected to the leakage detection structure when the liquid cooling pipe is in a normal state or an abnormal state includes: When the liquid leakage detection circuit is adjusted to be connected to the first resistor through the switch group based on the control instruction, the state in which the liquid leakage detection circuit is connected to the resistor when the liquid cooling tube is in a normal state; When adjusting the leakage detection circuit to be connected to the second resistor through the switch group based on the control instruction, a state of the resistor connected to the leakage detection circuit is simulated when the liquid cooling tube is in a leakage state; When the leakage detection circuit is controlled to be disconnected through the switch group based on the control instruction, the state of the resistor connected to the leakage detection circuit when the liquid cooling tube is in a fault state is simulated.

7. The method according to claim 6, wherein: Output status signals through comparison structure, including: The comparison structure compares the detection signal with a preset threshold and outputs a state signal, wherein the preset threshold is determined based on at least the detection signal output by the leakage detection structure when the liquid cooling tube is in a normal state.

8. A readable storage medium for storing at least one set of instruction sets; The instruction set is used to be called and to execute at least any one of the above methods for detecting liquid leakage.

Images