Air tightness parameter determination method of liquid cooling system, electronic equipment and storage medium

Abstract

The invention provides an air tightness parameter determination method of a liquid cooling system, electronic equipment and a storage medium, and the method comprises the steps: inflating a target liquid cooling system, and determining a first pressure drop value of the target liquid cooling system in a preset time after the inflation is finished, the target liquid cooling system is at least one to-be-tested liquid cooling system sample of the plurality of to-be-tested liquid cooling system samples; determining a second pressure drop value of a target liquid cooling system connected with a standard leak hole meeting a preset detection standard in a preset duration; and determining a standard pressure drop value according to the first pressure drop value and the second pressure drop value, and carrying out air tightness test on the to-be-tested liquid cooling system sample based on the standard pressure drop value. According to the method, the pressure drop change conditions of the target liquid cooling system and the target liquid cooling system connected to the standard leak hole under the same duration are compared and analyzed, so that the air tightness parameters of different liquid cooling systems can be accurately determined.

Description

Technical Field

[0001] The present invention relates to the technical field of air tightness detection, and in particular to a method for determining air tightness parameters of a liquid cooling system, an electronic device, and a storage medium. Background Art

[0002] When testing the air tightness of a liquid cooling system, a system is considered acceptable if its leakage does not exceed the permissible leakage threshold. Related technologies set standard values ​​for air tightness based on established experience. However, liquid cooling systems produced by different manufacturers vary in specifications and dimensions. Using a unified standard to define the air tightness of different systems would be difficult to apply to all systems, thus impacting the reliability and accuracy of air tightness testing. Summary of the Invention

[0003] Embodiments of the present invention provide a method for determining airtightness parameters of a liquid cooling system, an electronic device, and a storage medium, which can improve the technical problem of low reliability of airtightness testing of the liquid cooling system.

[0004] In a first aspect, an embodiment of the present invention provides a method for determining airtightness parameters of a liquid cooling system, the method comprising:

[0005] Inflate a target liquid cooling system, and after the inflation is completed, determine a first pressure drop value of the target liquid cooling system under a preset time period, wherein the target liquid cooling system is at least one liquid cooling system sample to be tested among a plurality of liquid cooling system samples to be tested;

[0006] Determining a second pressure drop value of the target liquid cooling system connected to a standard leak hole meeting a preset detection standard over the preset time period;

[0007] A standard pressure drop value is determined according to the first pressure drop value and the second pressure drop value, so as to perform an air tightness test on the liquid cooling system sample to be tested based on the standard pressure drop value.

[0008] In one embodiment, determining the standard pressure drop value according to the first pressure drop value and the second pressure drop value includes:

[0009] A standard pressure drop value is determined according to a difference between the first pressure drop value and the second pressure drop value.

[0010] In one embodiment, the preset time duration includes multiple times, and determining the standard pressure drop value according to the first pressure drop value and the second pressure drop value includes:

[0011] Calculating the difference between the second pressure drop value and the first pressure drop value corresponding to each of the preset time lengths;

[0012] Based on the weight of each of the preset time lengths, the differences corresponding to the preset time lengths are weighted to obtain the standard voltage drop value.

[0013] In one embodiment, the preset detection standard is related to the target liquid cooling system. Different target liquid cooling systems correspond to different preset detection standards. Meeting the preset detection standard includes: the leakage amount of the standard leak hole is the standard leakage amount, and the standard leakage amount is determined by the following method:

[0014] The standard leakage amount is determined according to the volume of the target liquid cooling system, the maximum allowable pressure drop value and the standard atmospheric pressure value.

[0015] In one embodiment, determining the standard leakage amount according to the volume, maximum allowable pressure drop value, and standard atmospheric pressure value of the target liquid cooling system includes:

[0016] The volume of the target liquid cooling system, the maximum allowable pressure drop value, and the standard atmospheric pressure value are input into a preset formula to determine the standard leakage amount. The preset formula includes:

[0017] R=(V*Δp_1min) / (Patm*t_1min);

[0018] Where R is the standard leakage of the standard leak; V is the volume of the target liquid cooling system; Δp_1min is the maximum allowable pressure drop of the target liquid cooling system under t_1min; Patm is the standard atmospheric pressure value; and t_1min is the unit time.

[0019] In one embodiment, the method further comprises:

[0020] weighting the design bearing pressure of the weak point of the target liquid cooling system according to a first preset coefficient to obtain a first test pressure;

[0021] Weighting the operating pressure threshold of the target liquid cooling system according to a second preset coefficient to obtain a second test pressure; wherein the first preset coefficient is smaller than the second preset coefficient;

[0022] determining the smaller of the first test pressure and the second test pressure as a target test pressure;

[0023] The target liquid cooling system is filled with gas based on the target test pressure.

[0024] In one embodiment, the target test pressure is between the first test pressure and the second test pressure.

[0025] In one embodiment, determining a first pressure drop value of the target liquid cooling system under a preset time period after the charging is completed includes:

[0026] When the first detection pressure in the target liquid cooling system is within a preset pressure range after the air is inflated, stopping the inflating of the target liquid cooling system;

[0027] After the inflation is completed, the second detection pressures at multiple preset positions in the target liquid cooling system are detected. When each second detection pressure is within the preset pressure range, the step of determining the first pressure drop value of the target liquid cooling system under the preset time length is performed.

[0028] In one embodiment, the method further comprises:

[0029] The time for the first detection pressure to reach the preset pressure range is used as the standard inflation time;

[0030] The time for each second detection pressure to reach the preset pressure range is used as a standard pressure stabilization time;

[0031] Based on the standard inflation time and the standard pressure stabilization time, an air tightness test is performed on the liquid cooling system sample to be tested.

[0032] In one embodiment, the method further comprises:

[0033] Based on the target test pressure, the standard inflation time, the standard pressure stabilization time, the preset time and the standard pressure drop value corresponding to the preset time, the air tightness test is performed on the multiple liquid cooling system samples to be tested.

[0034] In a second aspect, an embodiment of the present invention provides an electronic device, comprising:

[0035] one or more processors;

[0036] Memory; and

[0037] One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the method for determining the airtightness parameters of the liquid cooling system provided in any one of the embodiments of the present application.

[0038] In a third aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, which is loaded by a processor to execute any one of the methods for determining the airtightness parameters of a liquid cooling system provided in the embodiments of the present application.

[0039] Beneficial effects of the embodiments of the present invention:

[0040] In an embodiment of the present invention, the target liquid cooling system and the second liquid cooling system are inflated respectively according to the target test pressure, and the first pressure drop value and the second pressure drop value under different preset time lengths are determined after the inflation is completed. By comparing and analyzing the pressure drop changes of the target liquid cooling system and the target liquid cooling system connected to the standard leakage hole under the same time length, it is helpful to accurately determine the air tightness parameters of different liquid cooling systems, such as the standard pressure drop value. This can overcome the problem of relying on fixed experience to set the pressure holding time and leakage threshold in related technologies, which may cause misjudgment or missed detection. It helps to adaptively set the air tightness parameters according to the characteristics of the actual liquid cooling system, improve the accuracy and reliability of the test, and is suitable for standardized testing requirements of liquid cooling systems of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 This is an application scenario diagram of the method for determining airtightness parameters of a liquid cooling system provided by an embodiment of the present invention;

[0043] Figure 2 is an exemplary flow chart of a method for determining airtightness parameters of a liquid cooling system provided by an embodiment of the present invention;

[0044] Figure 3 is an exemplary schematic diagram of a liquid cooling system provided by an embodiment of the present invention;

[0045] Figure 4 is an exemplary schematic diagram of an apparatus for determining airtightness parameters of a liquid cooling system provided by an embodiment of the present invention;

[0046] Figure 5 is an exemplary schematic diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0048] Ensuring the airtightness of liquid cooling systems is crucial to preventing coolant leaks. Airtightness testing is used to detect possible minor leaks in the liquid cooling system, ensuring that the entire system can operate safely and stably under expected operating conditions. However, due to differences in internal volume and braking processes among different liquid cooling systems, and the numerous factors that influence the standard airtightness values, such as the aperture and number of minor leaks, using a unified standard value can easily lead to misjudgments or missed detections, resulting in low reliability in airtightness testing of liquid cooling systems.

[0049] In view of this, the present application proposes a method for determining the airtightness parameters of a liquid cooling system. By comparing and analyzing the pressure drop changes of a target liquid cooling system and a target liquid cooling system connected to a standard leak hole under the same length of time, it helps to adaptively set the airtightness parameters according to the characteristics of the actual liquid cooling system, thereby improving the accuracy and reliability of the test, and is suitable for the standardized testing needs of liquid cooling systems of different specifications.

[0050] Figure 1 This is an application scenario diagram of the method for determining the airtightness parameters of the liquid cooling system shown in some embodiments of this specification.

[0051] The method for determining the airtightness parameters of a liquid cooling system provided in the embodiments of this application can be applied to various liquid cooling system testing scenarios. For example, in the airtightness testing of a liquid cooling system in an energy storage container, by determining the airtightness parameters and evaluating the sealing performance of the liquid cooling system under different operating conditions, the reliability and safety of the liquid cooling system in practical applications can be ensured.

[0052] The executor of the technical solution of the embodiment of the present application may be an electronic device, which may be an electronic device, a server, or a terminal.

[0053] The server can be a standalone physical server, a server cluster or distributed system consisting of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, and cloud computing. Terminals can include, but are not limited to, mobile phones, computers, and intelligent voice interaction devices. The terminal and server can be connected directly or indirectly via wired or wireless communication, which is not limited in this embodiment of the present application.

[0054] In some embodiments, the application scenario may further include, for example, a network, a storage device, etc. The network may include any suitable wired or wireless network that can facilitate information and / or data exchange. The storage device is used to store data, instructions, and / or any other information.

[0055] It is worth noting that the application scenario of the method for determining the airtightness parameters of a liquid cooling system is provided for illustrative purposes only and is not intended to limit the scope of this specification. For those skilled in the art, various changes and modifications can be made based on the description of this specification. For example, the application scenario may also include a database, an information source, and the like. For another example, the application scenario may be implemented on other devices to achieve similar or different functions. However, these changes and modifications will not deviate from the scope of this specification.

[0056] Figure 2 2 is an exemplary flow chart of a method for determining airtightness parameters of a liquid cooling system provided by an embodiment of the present invention. In some embodiments, process 200 can be executed based on an electronic device. Figure 2 As shown, the process 200 includes the following steps.

[0057] Step 210 , inflate a target liquid cooling system, and determine a first pressure drop value of the target liquid cooling system under a preset time after the inflation is completed. The target liquid cooling system is at least one liquid cooling system sample to be tested among a plurality of liquid cooling system samples to be tested.

[0058] A target liquid cooling system is a liquid cooling system used to determine airtightness parameters prior to airtightness testing. For example, the target liquid cooling system can be one or more liquid cooling systems with known characteristics, used as a reference standard to ensure the accuracy and reliability of the subsequent airtightness testing process.

[0059] Air tightness parameters refer to standard values ​​related to air tightness testing.

[0060] In some embodiments, the standard value is a benchmark for evaluating the air tightness of other liquid cooling systems to be tested. For example, the standard value may include a standard pressure drop value, a standard leakage value, and the like.

[0061] The target liquid cooling system can be used to establish a reliable reference standard for airtightness parameters, which can be used to compare the airtightness test results of other liquid cooling systems under test. This comparison can more accurately assess whether the airtightness of the liquid cooling system under test meets the requirements.

[0062] The liquid cooling system sample to be tested refers to the specific liquid cooling system that needs to be tested for air tightness. The liquid cooling system sample to be tested can be from the same batch or the same model, or have the same structure and design parameters.

[0063] The target liquid cooling system can be one or more of the liquid cooling system samples to be tested, used to provide standard values, and is not the final test subject. For example, the target liquid cooling system can be an unused liquid cooling system from the same batch or model, or a liquid cooling system selected based on a random selection. This specification does not limit the comparison.

[0064] The preset duration refers to the pre-set time after the inflation is completed, during which the liquid cooling system is kept at a specified pressure for pressure drop measurement.

[0065] The preset time length can be a system default value, an experience value, a manually preset value, or any combination thereof, and can be set according to actual needs. This manual does not limit this. For example, the preset time length can be 30 seconds or 60 seconds.

[0066] The first pressure drop value is used to represent the change in pressure within the target liquid cooling system over a preset duration. For example, the first pressure drop value can be calculated by measuring the initial pressure of the target liquid cooling system after charging and the final pressure after the preset duration.

[0067] The first pressure drop value is a pressure drop value caused by factors such as leakage and tiny pores that may exist in the target liquid cooling system itself, and reflects the airtightness of the target liquid cooling system when no additional known leakage sources (standard leaks) are introduced.

[0068] The pressure drop value of the target liquid cooling system is used to determine the standard value, while the pressure drop value of the liquid cooling system sample to be tested is used to evaluate whether its air tightness meets the standard.

[0069] When there are multiple target liquid cooling systems, the pressure drop values ​​of the multiple target liquid cooling systems under a preset time length can be determined after the inflation is completed, and the first pressure drop value can be obtained based on the statistical values ​​of the multiple pressure drop values, such as the average value, median, etc.

[0070] Step 220 : Determine a second pressure drop value of the target liquid cooling system connected to a standard leak hole meeting a preset detection standard during the preset time period.

[0071] A standard leak is a measured and calibrated leak device. It is used in air tightness testing to provide a known leakage standard.

[0072] In some embodiments, a standard leak hole compatible with the target liquid cooling system can be selected, ensuring that its size and interface can be easily connected to the target liquid cooling system. For example, a detection interface can be reserved on the target liquid cooling system (e.g., a certain interface or pipeline), and the standard leak hole can be connected to the target liquid cooling system through the threaded interface or sealant of the standard leak hole.

[0073] The second pressure drop value refers to the change in internal pressure of the target liquid cooling system connected to the standard leak over a preset duration. For example, the second pressure drop value can be calculated by measuring the initial pressure of the target liquid cooling system connected to the standard leak after inflation and the final pressure after a preset duration.

[0074] The second pressure drop value includes the pressure drop value caused by leakage of the target liquid cooling system itself and the pressure drop value caused by leakage of the standard leak hole. By introducing the standard leak hole, the air tightness of the target liquid cooling system can be evaluated more accurately.

[0075] In some embodiments, after the target liquid cooling system is connected to the standard leak hole, the target liquid cooling system connected to the standard leak hole can be re-inflated, and the second pressure drop value of the target liquid cooling system connected to the standard leak hole under the preset time length can be determined after the inflation is completed. It is also possible to directly monitor the second pressure drop value of the target liquid cooling system connected to the standard leak hole under the preset time length without performing the re-inflation process.

[0076] In some embodiments, when there are multiple target liquid cooling systems, after each target liquid cooling system is connected to a standard leak hole, the pressure drop values ​​of the multiple target liquid cooling systems connected to the standard leak hole are determined respectively under a preset time length, and a second pressure drop value is obtained based on the statistical values ​​of the multiple pressure drop values, such as the average, median, etc.

[0077] Step 230 : determining a standard pressure drop value according to the first pressure drop value and the second pressure drop value, so as to perform an air tightness test on the liquid cooling system sample to be tested based on the standard pressure drop value.

[0078] The standard pressure drop value is a benchmark pressure drop value calculated or determined based on the first and second pressure drop values. The standard pressure drop value serves as the threshold for determining whether the liquid cooling system sample under test meets the airtightness requirements. By comparing the standard pressure drop value with the actual measured pressure drop value, it can be determined whether the liquid cooling system sample under test meets the airtightness requirements.

[0079] In some embodiments, the standard pressure drop value can be determined based on the first pressure drop value and the second pressure drop value in various ways. For example, the first pressure drop value and the second pressure drop value can be weighted averaged, with the weight determined based on the leakage rate of the standard leak and the leakage rate of the target liquid cooling system itself. In another example, a mathematical model can be established using regression analysis using the first pressure drop value and the second pressure drop value as variables, and the standard pressure drop value can be predicted using this mathematical model.

[0080] In some embodiments of the present specification, the standard pressure drop value is determined by considering the leakage of the target liquid cooling system itself and the leakage of the standard leak hole, which can reflect the actual leakage situation of the target liquid cooling system and the known leakage situation of the standard leak hole, and more accurately and scientifically evaluate the air tightness parameters of the liquid cooling system sample to be tested, which helps to improve the reliability and accuracy of subsequent air tightness tests.

[0081] In one embodiment, determining the standard pressure drop value according to the first pressure drop value and the second pressure drop value includes:

[0082] A standard pressure drop value is determined according to a difference between the first pressure drop value and the second pressure drop value.

[0083] In some embodiments, the preset time duration includes multiple times, and determining the standard pressure drop value according to the first pressure drop value and the second pressure drop value includes:

[0084] Calculating the difference between the second pressure drop value and the first pressure drop value corresponding to each of the preset time lengths;

[0085] Based on the weight of each of the preset time lengths, the differences corresponding to the preset time lengths are weighted to obtain the standard voltage drop value.

[0086] In some embodiments, multiple preset durations may be obtained through manual input or a storage device.

[0087] In some embodiments, the standard dwell time is determined from a plurality of preset durations using a variety of methods. For example, it can be determined manually. In another example, the standard dwell time can be determined from a plurality of preset durations based on test efficiency and accuracy. For example, the plurality of preset durations may include 15 minutes, 30 minutes, 45 minutes, 60 minutes, etc., and the standard dwell time may be 15 minutes, etc., to ensure accurate measurement of the pressure drop value while avoiding reducing the efficiency of the airtightness test.

[0088] In some embodiments, for each preset duration, a first pressure drop value (ΔP1) and a second pressure drop value (ΔP2) of the target liquid cooling system during that duration are measured. The first pressure drop value is the pressure drop when the target liquid cooling system is not connected to the standard leak, and the second pressure drop value is the pressure drop value after the target liquid cooling system is connected to the standard leak. A standard pressure holding time selected from multiple preset durations is used to calculate the difference between the second pressure drop value (ΔP2) and the first pressure drop value (ΔP1) corresponding to the standard pressure holding time, and the difference is used as the standard pressure drop value to represent the additional pressure drop caused by the standard leak during the standard pressure holding time.

[0089] It should be noted that if the second pressure drop value connected to the standard leak hole is directly used as the standard pressure drop value, it cannot provide an accurate standard value because it includes the leakage of the target liquid cooling system itself, which may lead to inaccurate airtightness assessment of other liquid cooling systems to be tested.

[0090] In some embodiments, the difference between the second pressure drop value and the first pressure drop value corresponding to each preset duration can be calculated, and the difference corresponding to each preset duration can be weighted based on the weight of each preset duration to obtain a weighted value. All weighted differences can be added together to obtain a comprehensive standard pressure drop value. The comprehensive standard pressure drop value can more accurately reflect the airtightness performance of the liquid cooling system in different time periods, which helps to evaluate the airtightness and reliability of the system. The weights can be set based on factors such as test requirements and usage conditions.

[0091] In some embodiments of this specification, by calculating the difference, the influence of the leakage of the target liquid cooling system itself can be eliminated, and only the pressure drop caused by the standard leak hole is retained; the standard pressure drop value is used as a parameter to evaluate the air tightness of the liquid cooling system to be tested, which can more accurately determine whether the air tightness of the liquid cooling system sample to be tested meets the requirements.

[0092] In some embodiments, the preset detection standard is related to the target liquid cooling system. Different target liquid cooling systems correspond to different preset detection standards. Meeting the preset detection standard includes: the leakage amount of the standard leak hole is the standard leakage amount, and the standard leakage amount is determined by the following method:

[0093] The standard leakage amount is determined according to the volume of the target liquid cooling system, the maximum allowable pressure drop value and the standard atmospheric pressure value.

[0094] The preset test standard is a set of quantitative requirements related to a standard leak that is met for a specific target liquid cooling system.

[0095] In some embodiments, the preset detection standard may include a corresponding range that the leakage rate of the standard leak hole must meet, and a corresponding range that the size of the standard leak hole must meet.

[0096] Liquid cooling systems may come in a variety of sizes and models, and different sizes of liquid cooling systems may have different airtightness requirements. By setting a standard leak hole and ensuring that it meets the preset test standards, the leakage rate of the standard leak hole can be adjusted according to the airtightness requirements of different liquid cooling systems. This makes the method applicable to liquid cooling systems of various sizes, improving the versatility and flexibility of the method.

[0097] The volume of the target liquid cooling system refers to the total space that can accommodate gas inside the target liquid cooling system. For example, the volume of the target liquid cooling system can be X cubic meters (m 3 ) or liter (L).

[0098] In some embodiments, the volume of the target liquid cooling system can be obtained through manual input or a storage device.

[0099] The maximum allowable pressure drop value is the threshold condition for the pressure drop allowed per unit time for the target liquid cooling system. For example, the maximum allowable pressure drop value could be Y kilopascals (kPa). The unit time could be expressed in hours, minutes, etc.

[0100] The standard atmospheric pressure is 101.325 kPa (equivalent to 1 atm or 1013.25 hPa).

[0101] In some embodiments, the standard leakage rate can be determined in various ways based on the volume, maximum allowable pressure drop, and standard atmospheric pressure of the target liquid cooling system. For example, the standard leakage rate can be determined by querying a preset table. The preset table stores multiple sets of different volumes, maximum allowable pressure drop values, and standard atmospheric pressure values, and their corresponding standard leakage rates. The preset table can be established based on relevant experience or determined based on historical heating data.

[0102] In some embodiments, determining the standard leakage amount according to the volume, maximum allowable pressure drop value, and standard atmospheric pressure value of the target liquid cooling system includes:

[0103] Calculating a first product of the volume of the target liquid cooling system and a maximum allowable pressure drop value;

[0104] Calculating a second product of the standard atmospheric pressure value and the unit time;

[0105] The standard leakage amount is determined according to the ratio of the first product to the second product.

[0106] The unit time depends on the unit of the standard leakage volume.

[0107] Exemplarily, the standard pressure holding time is correlated with the difference between the first pressure drop value (ΔP1) and the second pressure drop value (ΔP2). Specifically, the two have a positive correlation. According to relevant standard requirements, when the pressure in the cluster-level liquid cooling system pipeline reaches 1.2 times the maximum working pressure, it is left to stand for 1 minute. The pipeline should not rupture and the pressure drop value should not be greater than 0.2% of the maximum working pressure. According to this standard, the air pressure drop in the liquid cooling system within 1 minute is converted to Δp_1min≤0.2%*1.2*Prun. In order to ensure the reliability of the air tightness test results, the standard pressure holding time can be 15 to 30 minutes to ensure that leaks in the entire liquid cooling system can be effectively detected. After the standard pressure holding time is extended, the difference between the first pressure drop value (ΔP1) and the second pressure drop value (ΔP2) needs to be reset.

[0108] For example, a standard leak hole can be made according to relevant standard requirements and the specifications of the target liquid cooling system, and the standard leakage rate of the standard leak hole is recorded as R (ml / min).

[0109] In some embodiments, determining the standard leakage amount according to the volume, maximum allowable pressure drop value, and standard atmospheric pressure value of the target liquid cooling system includes:

[0110] The volume of the target liquid cooling system, the maximum allowable pressure drop value, and the standard atmospheric pressure value are input into a preset formula to determine the standard leakage amount. The preset formula includes:

[0111] R=(V*Δp_1min) / (Patm*t_1min);

[0112] Where R is the standard leakage rate of the standard leak; V is the volume of the target liquid cooling system; Δp_1min is the maximum allowable pressure drop of the target liquid cooling system at t_1min; Patm is the standard atmospheric pressure; and t_1min is the unit time. It is understood that t_1min can be one minute, ten minutes, or other values, and this embodiment of the application does not limit this.

[0113] In some embodiments, Δp_1min is the maximum allowable pressure drop value of the target liquid cooling system at t_1min that meets the requirements of relevant standards.

[0114] In some embodiments of this specification, the standard leakage amount is determined by the volume, maximum allowable pressure drop value and standard atmospheric pressure value of the target liquid cooling system. Corresponding standard leak holes can be made for various liquid cooling systems, such as size, shape or material, etc., which helps to specifically determine the accuracy and reliability of the airtightness parameters of different liquid cooling systems.

[0115] In some embodiments, the method further comprises:

[0116] weighting the design bearing pressure of the weak point of the target liquid cooling system according to a first preset coefficient to obtain a first test pressure;

[0117] Weighting the operating pressure threshold of the target liquid cooling system according to a second preset coefficient to obtain a second test pressure; wherein the first preset coefficient is smaller than the second preset coefficient;

[0118] determining the smaller of the first test pressure and the second test pressure as a target test pressure;

[0119] The target liquid cooling system is filled with gas based on the target test pressure.

[0120] Weak points are those parts of a system that are most susceptible to damage due to pressure, such as seals, connection points, or thin-walled areas.

[0121] The design pressure is the maximum safe operating pressure specified in the design of the target liquid cooling system. The design pressure can be determined by the manufacturer or designer based on the system's materials, structure, and usage requirements.

[0122] The first test pressure can be determined based on the weighted weight of the design withstand pressure of the weak point and a first preset coefficient (e.g., 80% or 90%) to ensure that the airtightness test does not exceed the safety range of the system. For example, the first preset coefficient k can be selected based on actual conditions, such as Ptest1 = k*Pdesign, where Ptest1 is the first test pressure, Pdesign is the design withstand pressure, and the first preset coefficient k depends on industry standards or other actual conditions.

[0123] The operating pressure threshold is the maximum pressure allowed during actual operation of the target liquid cooling system. The operating pressure threshold can be lower than the design pressure to ensure safe operation of the system.

[0124] The second test pressure is determined based on a weighted combination of the operating pressure threshold and a second preset coefficient (e.g., 110% or 120%) to ensure that the airtightness test can cover different operating environments of the target liquid cooling system while not exceeding safety limits. The second preset coefficient can be determined based on experiments or experience.

[0125] It can be understood that the first preset coefficient is a value less than 1. Using a value less than 1 can ensure that the test pressure will not exceed the design pressure-bearing capacity of the weakest part of the target liquid cooling system, thereby avoiding damage to the target liquid cooling system during the test; the second preset coefficient is a value greater than 1. Using a value greater than 1 can ensure that the test pressure can cover the pressure of the target liquid cooling system under extreme working conditions, thereby verifying the performance and safety of the target liquid cooling system under maximum working pressure.

[0126] The target test pressure refers to the specific pressure value selected for testing during the air tightness test.

[0127] In some embodiments, the target test pressure may be determined by weighted summation based on the first test pressure and the second test pressure, and the weights may be determined based on experiments or experience.

[0128] In some embodiments, the target test pressure is between the first test pressure and the second test pressure. For example, the target test pressure is a smaller value between the first test pressure and the second test pressure.

[0129] In some embodiments, after determining the target test pressure, a suitable inflation device (such as an air pump or a compressed air source) can be used to inflate the target liquid cooling system until the pressure in the target liquid cooling system reaches a preset pressure range of the target test pressure to perform an air tightness test.

[0130] In some embodiments of the present specification, the target test pressure is further determined by the first test pressure determined by the design pressure that the weak point can withstand and the second test pressure determined by the working pressure threshold, which can ensure that the target test pressure does not exceed the safety range of the target liquid cooling system while covering the normal working pressure range of the target liquid cooling system, which helps to determine the standard value of the subsequent air tightness test.

[0131] In some embodiments, determining a first pressure drop value of the target liquid cooling system under a preset time period after the inflation is completed includes:

[0132] When the first detection pressure in the target liquid cooling system is within a preset pressure range after the air is inflated, stopping the inflating of the target liquid cooling system;

[0133] After the inflation is completed, the second detection pressures at multiple preset positions in the target liquid cooling system are detected. When each second detection pressure is within the preset pressure range, the step of determining the first pressure drop value of the target liquid cooling system under the preset time length is performed.

[0134] The first detection pressure refers to the real-time pressure value inside the target liquid cooling system during the inflation process.

[0135] The preset pressure range is a pre-set pressure range. It can be determined based on safe pressure tolerances and test requirements. For example, the preset pressure range can be based on the target test pressure, where the preset pressure range is [target test pressure - deta, target test pressure + deta]. Deta is the allowable pressure deviation value, which defines the upper and lower limits of the preset pressure range and can be determined based on experimentation or experience.

[0136] The second detection pressure refers to the real-time pressure values ​​of multiple preset locations in the target liquid cooling system after the inflation is completed. The multiple preset locations may include weak points or key areas of the target liquid cooling system.

[0137] In some embodiments, a first pressure sensor may be configured in the target liquid cooling system to obtain a first detection pressure in the target liquid cooling system in real time or periodically. The installation location of the first pressure sensor should be determined based on the specific liquid cooling system design and monitoring requirements. For example, the installation location of the first pressure sensor may include but is not limited to the outlet after the flow passes through the energy storage container, the return water inlet of the liquid cooling unit, and the end of the return water pipeline (the end farther from the cold storage unit).

[0138] In some embodiments, a second pressure sensor may be configured at multiple preset locations in the target liquid cooling system to obtain a second detection pressure in the target liquid cooling system in real time or periodically. Exemplary preset locations for installing the second pressure sensor may include, but are not limited to, outlets of cooling devices (e.g., radiators, cold plates, etc.), pipe connections, valves, and the like.

[0139] In some embodiments, the target liquid cooling system includes multiple battery clusters, each of which is provided with a cooling circuit. A second pressure sensor is installed at the top of the return line of each battery cluster. The top of the return line is located at the end of the battery cluster cooling circuit, where the coolant is about to return to the circulation system or storage container.

[0140] Figure 3 is an exemplary schematic diagram of a liquid cooling system provided by an embodiment of the present invention.

[0141] like Figure 3 As shown, the liquid cooling system includes a liquid cooling unit, which is the starting point of the coolant circulation and is used to pump coolant into the energy storage system. The liquid cooling system also includes multiple pipelines. For example, from the liquid cooling unit, multiple pipelines are distributed, including a water supply pipeline for delivering coolant to each battery cluster and a water return pipeline for returning coolant to the liquid cooling unit. Figure 3 There are multiple rectangular blocks representing battery clusters, and coolant flows through the battery clusters to take away the heat generated by the batteries. Figure 3 The arrows in the figure indicate the flow direction of the coolant, which starts from the liquid cooling unit, flows through each battery cluster, and then returns to the liquid cooling unit.

[0142] The first pressure sensor may be installed after the liquid cooling unit and on the water return line of the battery cluster (eg, the water return line of the battery cluster farthest from the liquid cooling unit) to monitor the first detection pressure.

[0143] The second pressure sensor can be installed on the top of the return pipe of each battery cluster (such as Figure 3The pressure measurement point 1) shown is used to monitor the second detection pressure of the coolant after it flows through the battery cluster.

[0144] In some embodiments, the first pressure drop value is a certain second pressure, a statistical value of the second pressure (such as an average value), or a pressure drop value obtained by subtracting the pressure under a preset time period from the target test pressure.

[0145] After each second detection pressure falls within the preset pressure range, a pressure maintaining state is performed, all valves of the target liquid cooling system are closed, and the target liquid cooling system is in a closed state. This state is maintained for a preset period of time, such as a preset duration. During the preset duration, changes in the pressure of the target liquid cooling system are monitored.

[0146] In some embodiments, the method further comprises:

[0147] The time for the first detection pressure to reach the preset pressure range is used as the standard inflation time;

[0148] The time for each second detection pressure to reach the preset pressure range is used as a standard pressure stabilization time;

[0149] Based on the standard inflation time and the standard pressure stabilization time, an air tightness test is performed on the liquid cooling system sample to be tested.

[0150] The standard charging time is used to indicate the time required from the start of charging to the time when the first detection pressure of the target liquid cooling system reaches a predetermined pressure range.

[0151] In some embodiments, the pressure inside the target liquid cooling system can be monitored in real time by a first pressure sensor. When the first detection pressure reaches a preset pressure range, the time is recorded as the standard inflation time.

[0152] The standard pressure stabilization time is used to indicate the time required for the second detection pressure at each location of the target liquid cooling system to stabilize within a predetermined range after the charging is completed.

[0153] In some embodiments, the pressures at multiple preset positions of the target liquid cooling system can be monitored in real time by a second pressure sensor. When each second detection pressure reaches a preset pressure range, the time is recorded as a standard pressure stabilization time.

[0154] In some embodiments of the present specification, setting a standard inflation time and a standard pressure stabilization time helps to more accurately evaluate the air tightness of the system. For example, when the actual inflation time of the liquid cooling system sample to be tested is greater than the standard inflation time, it indicates that there may be a leak or a problem with the inflation equipment; or when the actual pressure stabilization time of the liquid cooling system sample to be tested is greater than the standard pressure stabilization time, it indicates that there may be a leak or uneven pressure distribution.

[0155] In some embodiments, the method further comprises:

[0156] Based on the target test pressure, standard inflation time, standard pressure stabilization time, preset time and the standard pressure drop value corresponding to the preset time, the air tightness test is performed on the multiple liquid cooling system samples to be tested.

[0157] In some embodiments, before performing the air tightness test, an inert gas or dry compressed air can be selected as the air tightness test gas for the liquid cooling system based on experience or prior knowledge. For example, the air tightness test gas needs to be safe, low-cost, effective in leak testing, and non-corrosive. The dryness of the dry compressed air can be defined by its dew point temperature. For example, ISO Class 2 (dew point ≤ -40°C) according to ISO 8573-1 (Compressed Air Quality Classification) can be used to ensure that there is no risk of condensation in extremely low temperatures.

[0158] Exemplarily, the airtightness test process is as follows:

[0159] Set the target pressure of the inflation device according to the target test pressure.

[0160] Start inflation and record the actual inflation time from the start of inflation to the time when the pressure in the liquid cooling system sample to be tested reaches the target test pressure. Determine whether the actual inflation time is consistent with the standard inflation time:

[0161] If the actual inflation time is inconsistent with the standard inflation time, it indicates that there may be problems such as leakage, overpressure risk, etc.

[0162] Inconsistency can mean not being the same or not being similar, etc.

[0163] After the inflation is completed, the actual stabilization time for the pressure of the liquid cooling system sample to be tested to stabilize within the preset pressure range is recorded to determine whether the actual stabilization time is consistent with the standard stabilization time.

[0164] If the actual stabilization time is inconsistent with the standard stabilization time, it indicates that there may be problems such as leakage and overpressure risks.

[0165] After the pressure of the liquid cooling system sample to be tested is stabilized, the air tightness test is started. The pressure change of the liquid cooling system sample to be tested within different preset time periods is recorded, and the actual pressure drop value of the liquid cooling system sample to be tested after the selected preset time period is calculated. The actual pressure drop value is compared with the standard pressure drop value:

[0166] If the actual pressure drop value is less than or equal to the standard pressure drop value, it means that the air tightness of the liquid cooling system sample to be tested is qualified.

[0167] If the actual pressure drop value is greater than the standard pressure drop value, it means that the liquid cooling system sample to be tested may be leaking and requires further inspection.

[0168] In some embodiments of the present specification, air tightness testing is performed using standard values ​​such as target test pressure, standard inflation time, standard pressure stabilization time, preset duration, and standard pressure drop value, which can ensure the standardization, accuracy, and reliability of the test process and help improve test efficiency; determining multiple standard values ​​for air tightness testing using scientific methods can avoid the problem of standard values ​​being not objective and accurate enough. In the air tightness test of the liquid cooling system, the standard value of air tightness is determined to ensure that the test results are more accurate.

[0169] It should be noted that the above description of the relevant processes is for illustration and explanation only and does not limit the scope of application of this specification. For those skilled in the art, various modifications and changes can be made to the processes under the guidance of this specification. However, such modifications and changes are still within the scope of this specification.

[0170] Figure 4 It is a structural schematic diagram of an apparatus for determining airtightness parameters of a liquid cooling system according to some embodiments of this specification.

[0171] like Figure 4 As shown, one or more embodiments of this specification also provide a schematic structural diagram of a device for determining airtightness parameters of a liquid cooling system. The device for determining airtightness parameters of a liquid cooling system may include:

[0172] The first module 401 is configured to charge air into a target liquid cooling system and determine a first pressure drop value of the target liquid cooling system over a preset time period after the charging is completed. The target liquid cooling system is at least one liquid cooling system sample to be tested from a plurality of liquid cooling system samples to be tested.

[0173] The second module 402 is configured to determine a second pressure drop value of the target liquid cooling system connected to the standard leak hole during the preset time period;

[0174] The third module 403 is configured to determine a standard pressure drop value according to the first pressure drop value and the second pressure drop value, so as to perform an air tightness test on the liquid cooling system sample to be tested based on the standard pressure drop value.

[0175] Among them, the first module 401, the second module 402, and the third module 403 can be used to respectively execute the corresponding embodiments of the method for determining the airtightness parameters of the above-mentioned liquid cooling system. For the specific implementation methods of these modules and more details, please refer to the corresponding method part, which will not be repeated here.

[0176] The specific implementation of the above operations can be found in the previous embodiments and will not be repeated here.

[0177] Figure 5 This is a structural diagram of an electronic device according to some embodiments of this specification.

[0178] The embodiment of the present application further provides an electronic device 500, which may include one or more processors 501 of processing cores, one or more computer-readable storage media memories 502, a power supply 503, an input unit 504, and other components. Those skilled in the art will understand that Figure 5 The electronic device structure shown in the figure does not constitute a limitation of the electronic device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently.

[0179] The processor 501 is the center for determining the airtightness parameters of the liquid cooling system. It uses various interfaces and lines to connect the various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 502 and calling data stored in the memory 502, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. It is understood that the processor 501 transmits signals with the controller. Optionally, the processor 501 may include one or more processing cores; preferably, the processor 501 can integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communications. It is understood that the above-mentioned modem processor may not be integrated into the processor 501.

[0180] The memory 502 can be used to store software programs and modules. The processor 501 executes various functional applications and data processing by running the software programs and modules stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 502 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 501 with access to the memory 502.

[0181] In some embodiments of the present application, the airtightness parameter determination device of the liquid cooling system can be implemented in the form of a computer program. The computer program can be used in Figure 5 The electronic device shown in FIG. The memory of the electronic device may store various program modules that constitute the device for determining the airtightness parameters of the liquid cooling system. The computer program composed of each program module causes the processor to execute the steps of the method for determining the airtightness parameters of the liquid cooling system of each embodiment of the present application described in this specification.

[0182] The electronic device includes a processor, memory, and a network interface connected via a system bus. The processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The network interface of the electronic device is used to communicate with external electronic devices via a network connection. When the computer program is executed by the processor, a method for determining airtightness parameters of a liquid cooling system is implemented.

[0183] The electronic device also includes a power supply 503 for supplying power to various components. Preferably, the power supply 503 can be logically connected to the processor 501 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The power supply 503 can also include one or more DC or AC power supplies, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and other arbitrary components.

[0184] The electronic device may further include an input unit 504, which may be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.

[0185] Although not shown, the electronic device may further include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 501 in the electronic device loads the executable files corresponding to one or more application processes into the memory 502 according to computer instructions, and the processor 501 runs the application stored in the memory 502 to implement various functions, such as the method for determining the airtightness parameters of the liquid cooling system in various embodiments of the present application described in this specification.

[0186] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be accomplished by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0187] In specific implementation, the above units or structures can be implemented as independent entities, or can be arbitrarily combined to implement as the same or several entities. The specific implementation of the above units or structures can refer to the previous method embodiments and will not be repeated here.

[0188] It should be noted that Figure 5This is only one implementation of the electronic device 500 provided in the embodiment of the present application. In actual applications, the electronic device 500 may also include more or fewer components, which is not limited here.

[0189] It should be understood that the various schemes of the embodiments of the present application can be reasonably combined and used, and the explanations or descriptions of the various terms appearing in the embodiments can be mutually referenced or explained in the various embodiments, without limitation to this.

[0190] It should also be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0191] Based on the above embodiments and the same concept, an embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program runs on a computer, the computer executes the method provided in the above embodiments.

[0192] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0193] The embodiments, implementation methods, and related technical features of this application can be combined and replaced with each other without conflict. Although the descriptions of each embodiment in the embodiments of this application have different focuses, and parts not described in detail in a certain embodiment can be referred to the relevant embodiments of other embodiments, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application are still within the scope of the technical solution of this application.

[0194] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A method for determining airtightness parameters of a liquid cooling system, characterized in that: The method comprises: Inflate a target liquid cooling system, and after the inflation is completed, determine a first pressure drop value of the target liquid cooling system under a preset time period, wherein the target liquid cooling system is at least one liquid cooling system sample to be tested among a plurality of liquid cooling system samples to be tested; Determining a second pressure drop value of the target liquid cooling system connected to a standard leak hole meeting a preset detection standard over the preset time period; A standard pressure drop value is determined according to the first pressure drop value and the second pressure drop value, so as to perform an air tightness test on the liquid cooling system sample to be tested based on the standard pressure drop value.

2. The method for determining the airtightness parameters of a liquid cooling system according to claim 1, wherein: Determining a standard pressure drop value according to the first pressure drop value and the second pressure drop value includes: A standard pressure drop value is determined according to a difference between the first pressure drop value and the second pressure drop value.

3. The method for determining the airtightness parameters of a liquid cooling system according to claim 1, wherein: The preset time duration includes multiple ones, and determining the standard pressure drop value according to the first pressure drop value and the second pressure drop value includes: Calculating the difference between the second pressure drop value and the first pressure drop value corresponding to each of the preset time lengths; Based on the weight of each of the preset time lengths, the differences corresponding to the preset time lengths are weighted to obtain the standard voltage drop value.

4. The method for determining the airtightness parameters of a liquid cooling system according to claim 1, wherein: The preset detection standard is related to the target liquid cooling system. Different target liquid cooling systems correspond to different preset detection standards. The meeting of the preset detection standard includes: the leakage amount of the standard leak hole is the standard leakage amount, and the standard leakage amount is determined by the following method: The standard leakage amount is determined according to the volume of the target liquid cooling system, the maximum allowable pressure drop value and the standard atmospheric pressure value.

5. The method for determining the airtightness parameters of a liquid cooling system according to claim 4, characterized in that: The determining of the standard leakage amount according to the volume, the maximum allowable pressure drop value, and the standard atmospheric pressure value of the target liquid cooling system includes: The volume of the target liquid cooling system, the maximum allowable pressure drop value, and the standard atmospheric pressure value are input into a preset formula to determine the standard leakage amount. The preset formula includes: R=(V*Δp_1min) / (Patm*t_1min); Where R is the standard leakage of the standard leak; V is the volume of the target liquid cooling system; Δp_1min is the maximum allowable pressure drop of the target liquid cooling system under t_1min; Patm is the standard atmospheric pressure value; and t_1min is the unit time.

6. The method for determining the airtightness parameters of a liquid cooling system according to any one of claims 1 to 5, characterized in that: The method further comprises: weighting the design bearing pressure of the weak point of the target liquid cooling system according to a first preset coefficient to obtain a first test pressure; Weighting the operating pressure threshold of the target liquid cooling system according to a second preset coefficient to obtain a second test pressure; wherein the first preset coefficient is smaller than the second preset coefficient; determining the smaller of the first test pressure and the second test pressure as a target test pressure; The target liquid cooling system is filled with gas based on the target test pressure.

7. The method for determining the airtightness parameters of a liquid cooling system according to any one of claims 1 to 5, characterized in that: Determining a first pressure drop value of the target liquid cooling system under a preset time period after the charging is completed includes: When the first detection pressure in the target liquid cooling system is within a preset pressure range after the air is inflated, stopping the inflating of the target liquid cooling system; After the inflation is completed, the second detection pressures at multiple preset positions in the target liquid cooling system are detected. When each second detection pressure is within the preset pressure range, the step of determining the first pressure drop value of the target liquid cooling system under the preset time length is performed.

8. The method for determining the airtightness parameters of a liquid cooling system according to claim 7, wherein: The method further comprises: The time for the first detection pressure to reach the preset pressure range is used as the standard inflation time; The time for each second detection pressure to reach the preset pressure range is used as a standard pressure stabilization time; Based on the standard inflation time and the standard pressure stabilization time, an air tightness test is performed on the liquid cooling system sample to be tested.

9. The method for determining the airtightness parameters of a liquid cooling system according to any one of claims 1 to 5, characterized in that: The method further comprises: Based on the target test pressure, the standard inflation time, the standard pressure stabilization time, the preset time and the standard pressure drop value corresponding to the preset time, the air tightness test is performed on the multiple liquid cooling system samples to be tested.

10. An electronic device, characterized in that: The electronic device comprises: one or more processors; Memory; and One or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the method for determining the airtightness parameters of the liquid cooling system according to any one of claims 1 to 9.

11. A computer-readable storage medium, characterized in that A computer program is stored thereon, and the computer program is loaded by a processor to execute the method for determining the airtightness parameters of the liquid cooling system according to any one of claims 1 to 9.

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