Testing system and method based on infiltration type liquid cooling environment

Abstract

The invention provides a test system and method based on an infiltration type liquid cooling environment, and relates to the technical field of tests.The test system comprises a sealed cabin which is provided with a carrier used for fixing a to-be-tested piece and forms a sealed space enabling the to-be-tested piece to be immersed in cooling liquid; the acquisition device is configured to acquire real-time parameters of the cooling liquid in the sealed cabin; the liquid cooling circulation equipment is communicated with the sealed cabin to form a circulation loop and is configured to receive the cooling liquid conveyed by the sealed cabin so as to adjust real-time parameters of the cooling liquid to a stage target parameter range and convey the real-time parameters to the sealed cabin; the detection device is configured to detect the change data of the to-be-tested piece to obtain the test data of the to-be-tested piece, so that the problem that various performance indexes of the to-be-tested piece in an infiltration type cooling environment are difficult to evaluate can be solved, and the change data of the to-be-tested piece can be obtained in real time in the test process to obtain the test data of the to-be-tested piece; therefore, the technical effect of accurately evaluating various performance indexes of the to-be-tested piece in the infiltration type cooling environment is achieved.

Description

Technical Field

[0001] This application relates to the field of testing technologies, and particularly to a testing system and method based on an immersion liquid cooling environment. Background Art

[0002] With the continuous improvement of the performance of electronic devices, the heat dissipation requirements of electronic devices have also increased accordingly. The traditional air-cooled heat dissipation method has been difficult to meet the heat dissipation requirements of high-density and high-power devices. The immersion liquid cooling heat dissipation method has the advantages of high heat dissipation efficiency, low noise, energy conservation and environmental protection, and has been widely used.

[0003] In an immersion liquid cooling environment, the labels attached to the surface of electronic devices are immersed in the coolant for a long time, and need to have good corrosion resistance to the coolant, high-strength adhesion and stability. However, there is currently a lack of a system and method for specifically testing the performance of labels in an immersion cooling environment, and it is not easy to accurately evaluate various performance indicators of labels in an immersion cooling environment. Summary of the Invention

[0004] This application provides a testing system and method based on an immersion liquid cooling environment, so as to at least solve the problem in the related technologies that it is not easy to accurately evaluate various performance indicators of a test piece in an immersion cooling environment, and achieve the effect of obtaining the change data of the test piece in real time during the test to obtain the test data of the test piece, thereby accurately evaluating various performance indicators of the test piece in an immersion cooling environment.

[0005] This application provides a testing system based on an immersion liquid cooling environment, including: a sealed chamber, provided with a carrier for fixing a test piece, and forming a closed space for immersing the test piece in a coolant; a collection device configured to collect real-time parameters of the coolant in the sealed chamber; a liquid cooling circulation device communicating with the sealed chamber to form a circulation loop, configured to receive the coolant conveyed by the sealed chamber, adjust the real-time parameters of the coolant to a stage target parameter range, and convey it to the sealed chamber; a detection device configured to detect the change data of the test piece to obtain the test data of the test piece.

[0006] This application also provides a testing method based on an immersion liquid cooling environment, applied to the testing system as described above. The testing method includes: obtaining the real-time parameters of the coolant in the sealed chamber; determining the stage target parameter range of the liquid cooling circulation device based on the running duration and the stage preset time range, where the stage preset time range represents the running period between the start time and the end time of each stage during the running process; controlling the liquid cooling circulation device to adjust the real-time parameters to the stage target parameter range based on the real-time parameters and the stage target parameter range; obtaining the change data of the test piece in the sealed chamber to obtain the test data of the test piece.

[0007] Through the present application, during the process of testing a device under test, the device under test is fixed to a carrier in a sealed chamber to ensure the tightness of the test environment. Then, a liquid cooling circulation device conveys a coolant to the sealed chamber, filling the sealed chamber with the coolant, thereby forming an immersion liquid cooling environment in which the device under test is immersed in the coolant. At the same time, the liquid cooling circulation device receives the coolant conveyed from the sealed chamber to form a circulation loop. During the test, a collection device acquires the real-time parameters of the coolant in the sealed chamber in real time. The liquid cooling circulation device adjusts the real-time parameters of the coolant conveyed into the sealed chamber to a stage target parameter range to dynamically adjust the parameters of the coolant, thereby simulating the dynamic changes of the immersion liquid cooling environment in which the device under test is located in the actual use environment and improving the accuracy of the test. A detection device detects the change data of the device under test in real time during the test to obtain the test data of the device under test. Therefore, the technical problem of being difficult to accurately evaluate the performance indicators of the device under test in the immersion cooling environment can be solved, and the technical effect of obtaining the change data of the device under test in real time during the test to obtain the test data of the device under test, so as to accurately evaluate the performance indicators of the device under test in the immersion cooling environment can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0009] Figure 1 It is a schematic diagram of a test system based on an immersion liquid cooling environment provided by an embodiment of the present application;

[0010] Figure 2 It is a three-dimensional schematic diagram of a sealed chamber provided by an embodiment of the present application;

[0011] Figure 3 It is a flowchart of a test method based on an immersion liquid cooling environment provided by an embodiment of the present application;

[0012] Figure 4 It is a flowchart of controlling a liquid cooling circulation device to adjust real-time parameters to a stage target parameter range provided by an embodiment of the present application;

[0013] Figure 5 It is another flowchart of a test method based on an immersion liquid cooling environment provided by an embodiment of the present application.

[0014] Among them, the above-mentioned drawings include the following reference numerals:

[0015] 1. Sealed cabin; 11. First part; 12. Second part; 13. Third part; 14. Vehicle; 15. Observation window; 2. Collection device; 3. Liquid cooling circulation equipment; 31. Liquid storage tank; 32. Heater; 33. Refrigerator; 34. Input pipe; 35. Output pipe. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0017] It should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. The terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. The terms "parallel", "perpendicular", and "equal" include the described situations and situations similar to the described situations, and the range of the similar situations is within the acceptable deviation range, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurement being discussed and the errors related to the measurement of a specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximate parallel, and the acceptable deviation range of approximate parallel can be, for example, within 5° deviation; "perpendicular" includes absolute perpendicular and approximate perpendicular, and the acceptable deviation range of approximate perpendicular can also be, for example, within 5° deviation. "Equal" includes absolute equality and approximate equality, and the acceptable deviation range of approximate equality can be, for example, that the difference between the two equal ones is less than or equal to 5% of any one of them. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood in specific situations.

[0018] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0019] In electronic devices, the immersion liquid cooling method is widely adopted. In an immersion liquid cooling environment, the labels attached to the surface of electronic devices are immersed in the coolant for a long time. Factors such as sudden changes in coolant temperature, pressure changes, or flow rate changes will have an adverse impact on the adhesion and stability of the labels. Thus, higher requirements are put forward for the performance of the labels, and the labels need to have good corrosion resistance to the coolant, high-strength adhesion, and stability. However, there is currently a lack of a system and method for specifically testing the performance of labels in an immersion cooling environment, and it is not easy to accurately evaluate various performance indicators of labels in an immersion cooling environment.

[0020] The first aspect of the present application provides a test system based on an immersion liquid cooling environment. In combination with the structure and working principle of the test system based on an immersion liquid cooling environment, the test system based on an immersion liquid cooling environment is described in detail.

[0021] Referring to Figure 1 and Figure 2 As shown, the test system includes a sealed chamber 1, a collection device 2, a liquid cooling circulation device 3, and a detection device. The sealed chamber 1 is provided with a carrier 14 for fixing the test piece and forms a closed space in which the test piece is immersed in the coolant. The collection device 2 is configured to collect real-time parameters of the coolant in the sealed chamber 1. The liquid cooling circulation device 3 is connected to the sealed chamber 1 to form a circulation loop and is configured to receive the coolant transported from the sealed chamber 1 to adjust the real-time parameters of the coolant to the range of stage target parameters and then transport it to the sealed chamber 1. The detection device is configured to detect the change data of the test piece to obtain the test data of the test piece.

[0022] Specifically, the test piece can be a label attached to the surface of an electronic device, or it can be other adhesive parts, etc., which are specifically determined according to actual needs.

[0023] It should be noted that a label generally includes an adhesive layer, a main material, and a sealing layer. The adhesive layer is provided on the first surface of the main material to attach the label to the surface of the electronic device. The adhesive layer needs to have high-strength adhesion. The sealing layer is provided on the second surface opposite to the first surface of the main material to seal and protect the surface of the main material away from the electronic device. The sealing layer can be a polyvinyl chloride film, a polyester film, a polypropylene film, etc., which are specifically determined according to actual needs. The sealing layer of the label needs to have good corrosion resistance. When the sealing layer is immersed in the coolant, there will be a phenomenon that the sealing layer is corroded by the coolant and the adhesive of the sealing layer will come off due to the flushing of the coolant.

[0024] Specifically, the coolant can be a fluorinated liquid, which is specifically defined according to actual needs. The sealed chamber 1 needs to have corrosion resistance and pressure resistance. The sealed chamber 1 is used to form a circulation loop with the liquid cooling circulation device 3, and the coolant can be recycled. In this way, during the test, the device under test fixed to the vehicle 14 is immersed in the coolant, so that the device under test is in an immersion liquid cooling environment.

[0025] Furthermore, the acquisition device 2 can be arranged in the sealed chamber 1 to acquire the real-time parameters of the coolant. It should be noted that the parameters include but are not limited to temperature parameters, pressure parameters, flow rate parameters, flow velocity parameters, and so on. The liquid cooling circulation device 3 adjusts the real-time parameters of the coolant delivered into the sealed chamber 1 to the stage target parameter range to dynamically adjust the parameters of the coolant, so as to simulate the dynamic changes of the immersion liquid cooling environment in which the device under test is located in the actual use environment and improve the accuracy of the test.

[0026] It should be noted that the test process is divided into multiple time stages. The stage target parameter range represents the parameter range of the coolant during the time stage.

[0027] The detection device detects the change data of the device under test in real time during the test. Among them, the change data represents the data of the appearance change of the device under test in the immersion test environment. By comparing and analyzing the change data, the change data of the device under test can be obtained, so as to obtain the test data of the device under test and accurately evaluate various performance indicators of the device under test in the immersion cooling environment. Among them, the performance indicators include but are not limited to corrosion resistance, recognition readability, adhesion characteristics, and so on.

[0028] In such an implementation manner, by setting the acquisition device 2 and the liquid cooling circulation device 3, the parameters of the coolant in the sealed chamber 1 are dynamically adjusted, so as to simulate the dynamic changes of temperature, pressure, and flow velocity of the immersion liquid cooling environment in which the device under test is located in the actual use environment and improve the accuracy of the test. At the same time, the detection device detects the change data of the device under test in real time, and the test data of the device under test is obtained by comparing and analyzing the change data, so as to accurately evaluate various performance indicators of the device under test in the immersion cooling environment.

[0029] In some exemplary embodiments, referring to Figure 1 and Figure 2 as shown, the sealed chamber 1 includes a first part 11, a second part 12, and a third part 13 from the outside to the inside. The first part 11 represents the outer shell of the sealed chamber 1, which can be made of titanium alloy material and has good corrosion resistance and pressure resistance. The third part 13 represents the inner sealing layer of the sealed chamber 1, which can be a polytetrafluoroethylene coating to prevent the coolant in the sealed chamber 1 from penetrating. The second part 12 represents the buffer layer between the first part 11 and the third part 13, and the buffer layer can be formed of silica gel.

[0030] In some exemplary embodiments, referring toFigure 1 and Figure 2 As shown in Figure 2 , the vehicle 14 is adjustably disposed in the sealed chamber 1 and is configured to adjust the position of the vehicle 14 to adjust the distance between the test piece and the liquid level of the coolant in the sealed chamber 1.

[0031] Specifically, the vehicle 14 is installed in the sealed chamber 1 by, but not limited to, bolts, snap components, telescopic components or any other connection components, which is specifically determined according to actual needs. The vehicle 14 can be defined by the material, shape and volume of the electronic device to which the test piece is attached during actual use.

[0032] In such an embodiment, according to the actual use environment, the vehicle 14 is adjusted and replaced, so as to adjust the distance between the test piece disposed on the vehicle 14 and the liquid level of the coolant in the sealed chamber 1, so as to approach the depth at which the test piece is immersed in the coolant in the actual use environment, thereby improving the accuracy of simulating the test environment and the test precision.

[0033] In some exemplary embodiments, referring to Figure 1 and Figure 2 As shown in Figure 2 , the liquid cooling circulation device 3 includes a liquid storage tank 31, a heater 32, a cooler 33, an input pipe 34, an output pipe 35 and a circulation pump (not shown in the figure). The liquid storage tank is communicated with the sealed chamber 1 through the input pipe 34 and the output pipe 35 to form a circulation loop for conveying the coolant. The circulation pump is disposed in the input pipe 34 and is configured to drive the coolant to be conveyed in the circulation loop. The heater 32 and the cooler 33 are disposed in the liquid storage tank. The heater 32 is configured to heat the coolant, and the cooler 33 is configured to cool the coolant, so as to adjust the temperature of the coolant.

[0034] In some exemplary embodiments, the acquisition device 2 includes at least one of a temperature sensor, a pressure sensor, and a flow meter.

[0035] Specifically, the acquisition device 2 is disposed in the sealed chamber 。Multiple acquisition devices 2 can be disposed, and the multiple acquisition devices 2 are spaced apart in the depth direction of the sealed chamber 1, so as to acquire the real-time parameters of the coolant at different depths and take the average value. In this way, the error caused by the slight difference in the temperature of the coolant at different depths or the uneven temperature of the coolant can be reduced.

[0036] Further, the acquisition device 2 collects the real-time parameters of the coolant in the sealed chamber 1 in real time. The real-time parameters include at least one of temperature parameters, pressure parameters, and flow parameters. Specifically, a temperature sensor detects the temperature parameter of the coolant in real time. The temperature sensor can be a platinum resistance temperature sensor, a K-type thermocouple, etc., which is not limited herein. A pressure sensor detects the pressure parameter of the coolant in real time. The pressure sensor can be a piezoresistive pressure sensor. A flowmeter detects the flow parameter of the coolant in real time. The flowmeter can be an electromagnetic flowmeter, a turbine flowmeter, etc., which is not limited herein.

[0037] The temperature measurement error is less than 1%. The pressure measurement error is less than 0.25%. The flow measurement error is less than 0.5%.

[0038] In some illustrative embodiments, the test system further includes an accumulator configured to absorb the pressure shock when the circulation pump starts and stops, ensuring that the pressure fluctuation ≤ ±0.05 MPa.

[0039] Specifically, during the test process, the operating cycle of the test system is generally one week, two weeks, etc., which is determined according to actual needs.

[0040] The operating cycle is divided into multiple stage time ranges. Stage target parameter ranges are set within each stage time range. Among them, the stage target parameter ranges can be temperature parameter ranges, pressure parameter ranges, and flow parameter ranges.

[0041] In this way, during the test process, the real-time parameters of the coolant between adjacent stages will change suddenly. The temperature changes suddenly by ±50 °C / min, and the temperature parameter range is -70 °C to 250 °C.

[0042] In such an implementation manner, the acquisition device 2 collects the real-time parameters of the coolant in real time, and can feedback and detect that the cooling circulation device adjusts the real-time parameters of the coolant to the stage target parameter range. During the test process, based on the operating cycle, multiple stage time ranges, and the stage target parameter ranges corresponding to each stage time range, the acquisition device 2 and the liquid cooling circulation device 3 dynamically adjust the changes in at least one of the temperature, pressure, and flow of the coolant to simulate the dynamic changes in the immersion liquid cooling environment where the device under test is located in the actual use environment, improve the accuracy of the test, and thus accurately evaluate various performance indicators of the device under test in the immersion cooling environment.

[0043] In some illustrative embodiments, referring to Figure 2 As shown, a transparent observation window 15 is provided on the side wall of the sealed chamber 1 so that the detection device can detect the device under test through the observation window 15 in real time and obtain the change data of the device under test.

[0044] Specifically, the observation window 15 can be made of transparent materials such as glass and acrylic, which is limited according to actual needs.

[0045] In such an embodiment, by providing a transparent observation window 15 and a detection device, real-time detection can be achieved during the test, without waiting until the test is completed to take out and disassemble the test piece to be detected, thereby realizing non-destructive evaluation and reducing the test cost.

[0046] In some illustrative embodiments, the detection device (not shown in the figure) includes at least one of an image acquisition device, an ultrasonic sensor, and an infrared thermal imaging device.

[0047] Specifically, the image acquisition device can be a camera, which detects the appearance changes of the test piece in real time through the observation window 15 to obtain discoloration data, deformation data, and clarity change data.

[0048] Specifically, the image acquisition device captures images of the test piece during the test process and records information such as text and patterns of the test piece. Feature extraction and matching are performed on the text and patterns of the images through image recognition. The clarity scores of the text and patterns are calculated. For example, the clarity is quantified by calculating indicators such as the sharpness and contrast of the character edges.

[0049] By comparing and analyzing the clarity of the image before the test starts with the clarity of the image after the test ends, the clarity change data of the test piece is obtained. By analyzing the clarity change data, the recognition readability test data of the test piece is obtained. For example, if the clarity change data exceeds the preset threshold range, it indicates that the recognition readability of the test piece is affected.

[0050] The ultrasonic sensor can obtain the crack change data of the test piece by collecting the echo signals of ultrasonic waves. Specifically, when ultrasonic waves propagate in the test piece, if they encounter microcracks, phenomena such as reflection, refraction, and scattering will occur, resulting in changes in characteristics such as the amplitude, phase, and frequency of the received signal.

[0051] In this way, signal filtering algorithms are used to remove noise interference and enhance useful signals. By analyzing the characteristics of the echo signals, such as the amplitude and phase changes of the reflected waves, and combining the propagation characteristics of ultrasonic waves in the test piece, it is determined whether the test piece has defects such as microcracks and cavities, and the position, size, and shape of the defects are determined. Using imaging algorithms, the ultrasonic data is converted into a visual image to intuitively display the internal structure of the test piece. By comparing and analyzing the changes in cracks before and after the test starts, the crack change data of the test piece is obtained. By analyzing the crack change data, the corrosion resistance test data of the test piece is obtained.

[0052] An infrared thermal imaging device can obtain the state change data of the device under test by analyzing thermal images. Specifically, the state of the device under test is judged according to the temperature distribution characteristics. Calculate the temperature difference between different regions on the surface of the device under test, and compare the temperature distribution before and after the test to obtain the state change data. For example, if there are abnormal temperature changes in the device under test, such as local hot spots or cold spots, it may mean that there are problems such as sealant delamination and moisture penetration in the device under test. By analyzing the state change data, the corrosion resistance test data of the device under test can be obtained.

[0053] Furthermore, during the detection, a detection method combining an ultrasonic sensor and an image acquisition device can be adopted. While obtaining the discoloration data, deformation data or clarity change data of the device under test through the image acquisition device, combine the crack change data obtained through the ultrasonic sensor to comprehensively determine the change data of the device under test. For example, in the case where the device under test has slight discoloration or a small amount of coating peeling, and the micro-crack condition is relatively light, it is comprehensively determined as a lower degree of appearance damage. In the case where the device under test has obvious deformation, large-area coating peeling, and there are many and serious micro-cracks, it is comprehensively determined as a higher degree of appearance damage.

[0054] In such an implementation manner, by setting the transparent observation window 15 and the detection device, the change data of the device under test can be detected in real time during the test, without having to wait until the test is over and take out the device under test to detect the change data of the device under test. In this way, during the test, the change data of the device under test is collected in real time, improving the test efficiency and convenience. In this way, the change data of the device under test is obtained in real time during the test to obtain the test data of the device under test, so as to accurately evaluate various performance indicators of the device under test in the immersion cooling environment.

[0055] Furthermore, in the detection method of detecting the device under test after the test is over, there are detection errors caused by environmental changes. Therefore, in the test process, the detection method of detecting the change data of the device under test in real time achieves the effect of improving the test accuracy.

[0056] It should be noted that during the process of detecting the adhesion test data of the device under test, before the test starts, a tensile sensor can be used to measure the initial adhesion of the device under test on the surface of the carrier 14 in the sealed chamber 1 , record the tensile value at this time, accurate to the specified accuracy. After the test is over, use the same tensile sensor again, at the same test speed and direction, to measure the adhesion of the device under test after experiencing the immersion liquid cooling environment test .

[0057] The expression for the adhesion change rate of the device under test is:

[0058] Adhesion change rate = ×100%;

[0059] Among them, is the initial adhesion before the test, is the adhesion after the test.

[0060] In this way, based on the initial adhesion before the test and the adhesion after the test, the change rate of the adhesion can be obtained, and thus the adhesion test data of the component to be tested can be obtained.

[0061] The second aspect of the present application provides a test method based on an immersion liquid cooling environment. Combining the working principle of the test method based on the immersion liquid cooling environment, the test method based on the immersion liquid cooling environment is described in detail.

[0062] The test method based on the immersion liquid cooling environment is applied to the test system as described above. Referring to Figure 3 shown, the test method includes operations S110 - S140.

[0063] Operation S110, obtaining the real - time parameters of the coolant in the sealed chamber 1.

[0064] Operation S120, determining the range of stage target parameters of the liquid cooling circulation device 3 based on the running duration and the stage preset time range, where the stage preset time range represents the running period between the start time and the end time of each stage during the running process.

[0065] Operation S130, controlling the liquid cooling circulation device 3 to adjust the real - time parameters to the range of stage target parameters based on the real - time parameters and the range of stage target parameters.

[0066] Operation S140, obtaining the change data of the component to be tested in the sealed chamber 1 to obtain the test data of the component to be tested.

[0067] Specifically, in operation S110, the real - time parameters of the coolant can be collected by the collection device 2. Specifically, the collection device 2 can be arranged in the sealed chamber 1. The parameters include but are not limited to temperature parameters, pressure parameters, flow rate parameters, flow velocity parameters, etc.

[0068] In operation S120, the running duration refers to the running cycle of the test system. The running cycle is generally one week, two weeks, etc., and is specifically determined according to actual needs. During the running cycle, it will be divided into multiple stage preset time ranges according to actual needs. The stage preset time range represents the running period between the start time and the end time of each stage during the running process. A corresponding range of stage target parameters is set within each stage time range.

[0069] Specifically, when the operation cycle is 7 days, each day is divided into three stages, for example, the first stage, the second stage, and the third stage. The preset time range of a stage can be the operation period between the start time and the end time of the corresponding stage. For example, the preset time range of the first stage is the operation period from 0:00 to 8:59. The preset time range of the second stage is the operation period from 9:00 to 16:59, and the preset time range of the third stage is the operation period from 17:00 to 23:59. It can be understood that each day can also be divided into six stages, nine stages, twelve stages, etc., which are specifically determined according to actual needs.

[0070] Furthermore, a range of stage target parameters to be maintained is correspondingly set for each preset time range of a stage. The parameters in the range of stage target parameters can be at least one of a temperature parameter, a pressure parameter, a flow rate parameter, and a flow velocity parameter. Taking the temperature parameter as an example, the range of stage target parameters corresponding to the preset time range of the first stage is from 0°C to 2°C; the range of stage target parameters corresponding to the preset time range of the second stage is from 40°C to 42°C; the range of stage target parameters corresponding to the preset time range of the third stage is from 85°C to 87°C. It can be understood that the range of stage target parameters can be adjusted according to actual needs and is not limited herein.

[0071] In this way, based on the operation duration and the preset time range of a stage, the range of stage target parameters of the liquid cooling circulation device 3 is determined. Specifically, when the operation duration is 9 hours, at this time, the operation duration is within the preset time range of the second stage, that is, the operation period from 9:00 to 16:59, and the range of stage target parameters of the liquid cooling circulation device 3 is determined to be from 40°C to 42°C.

[0072] It should be noted that before the test, the operation cycle, the preset time range of a stage, and the range of stage target parameters are set.

[0073] In operation S130, based on the real-time parameters and the range of stage target parameters, the liquid cooling circulation device 3 is controlled to adjust the real-time parameters to the range of stage target parameters.

[0074] Specifically, when the operation duration is 9 hours, since the first stage has just ended and the second stage has started, at this time, the real-time parameters of the coolant are the range of stage target parameters of the first stage, which is from 0°C to 2°C. Since the operation duration is within the preset time range of the second stage at this time, the range of stage target parameters is from 40°C to 42°C. The liquid cooling circulation device 3 heats up the coolant so that the real-time temperature of the coolant collected by the collection device 2 is adjusted and maintained at 40°C to 42°C.

[0075] In operation S140, the change data of the component to be tested in the sealed chamber 1 is obtained to get the test data of the component to be tested. During the test, the component to be tested will change in the immersion liquid cooling environment. The change data of the component to be tested is detected in real time by the detection device to obtain the test data of the component to be tested, so as to accurately evaluate various performance indicators of the component to be tested in the immersion cooling environment.

[0076] According to an embodiment of the present application, during the test, based on the running time and the preset time range of the stage, the stage target parameter range is determined. Then, based on the real-time parameters of the coolant in the sealed chamber 1 and the stage target parameter range, the liquid cooling circulation equipment is controlled to heat up or cool down the coolant, so that the coolant is adjusted to the stage target parameter range, so as to dynamically adjust the parameters of the coolant, thus simulating the dynamic changes of the immersion liquid cooling environment in which the component to be tested is located in the actual use environment and improving the test accuracy. During the test, the change data of the component to be tested is detected in real time to obtain the test data of the component to be tested, so as to accurately evaluate various performance indicators of the component to be tested in the immersion cooling environment.

[0077] In some illustrative embodiments, the real-time parameters include at least one of a temperature parameter, a pressure parameter, and a flow rate parameter.

[0078] Specifically, the temperature parameter of the coolant can be detected by a temperature sensor. The pressure parameter of the coolant can be detected by a pressure sensor. The flow rate parameter of the coolant can be detected by a flow meter. As described above, details are not repeated here.

[0079] In some illustrative embodiments, the change data includes at least one of crack change data, color change data, deformation data, and clarity change data.

[0080] Specifically, the appearance change of the component to be tested can be detected in real time by an image acquisition device to obtain color change data, deformation data, and clarity change data, so as to obtain the recognition readability test data of the component to be tested. The crack change data of the component to be tested can be detected in real time by an ultrasonic sensor to obtain the corrosion resistance test data of the component to be tested. The state change data of the component to be tested is detected in real time by an infrared thermal imaging device to obtain the corrosion resistance test data of the component to be tested. As described above, details are not repeated here.

[0081] In some illustrative embodiments, controlling the liquid cooling circulation equipment 3 to adjust the real-time parameters to the stage target parameter range includes: when the real-time parameter is greater than the maximum value of the stage target parameter range, adjusting the first adjusting device of the liquid cooling circulation equipment 3 to adjust the real-time parameter to the stage target parameter range. When the real-time parameter is less than the minimum value of the stage target parameter range, adjusting the second adjusting device of the liquid cooling circulation equipment 3 to adjust the real-time parameter to the stage target parameter range.

[0082] Specifically, when the real-time parameter is greater than the maximum value of the stage target parameter range, it indicates that the real-time parameter of the coolant needs to be reduced to within the stage target parameter range. When the real-time parameter is less than the minimum value of the stage target parameter range, it indicates that the real-time parameter of the coolant needs to be increased to within the stage target parameter range.

[0083] Furthermore, the first adjustment device and the second adjustment device can be two independent devices or the same device.

[0084] Specifically, when the real-time parameter is a temperature parameter, the first adjustment device can be a refrigerator 33. The refrigerator 33 refrigerates through a compressor and exchanges heat with ethylene glycol solution. The refrigeration power range is from 5 kW to 20 kW, which is specifically limited according to actual needs. The second adjustment device can be a heater 32, and the power range is from 1 kW to 10 kW, which is specifically limited according to actual needs. The temperature changes suddenly by ±50°C / min, and the temperature parameter range is from -70°C to 250°C.

[0085] When the real-time parameter is a pressure parameter, the first adjustment device and the second adjustment device can be the same proportional valve to adjust the pressure of the coolant to decrease or increase.

[0086] When the real-time parameter is a flow rate parameter, the first adjustment device and the second adjustment device can be the same flow meter, such as an electromagnetic flow meter or a turbine flow meter, to adjust the flow rate of the coolant to decrease or increase.

[0087] For example, taking the real-time parameter as the temperature parameter as an example, when the real-time parameter is greater than the maximum value of the stage target parameter range, adjust the power of the refrigerator 33 of the liquid cooling circulation device 3 to reduce the temperature parameter of the coolant and maintain the temperature parameter of the coolant within the stage target temperature parameter range. When the real-time parameter is less than the minimum value of the stage target parameter range, adjust the power of the heater 32 of the liquid cooling circulation device 3 to increase the temperature parameter of the coolant and maintain the temperature parameter of the coolant within the stage target temperature parameter range.

[0088] Specifically, referring to Figure 4 As shown, taking the real-time parameter as the temperature parameter as an example, based on the real-time parameter of the coolant in the sealed cabin 1 and the stage target parameter range, controlling the liquid cooling circulation device 3 to adjust the real-time parameter to the stage target parameter range includes operations S201 - S206.

[0089] In operation S201, obtain the real-time parameter and the stage target parameter range. Specifically, obtain the real-time parameter through the acquisition device 2, as described above, and will not be elaborated here.

[0090] In operation S202, it is determined whether the real-time parameter is greater than the maximum value of the stage target parameter range. If so, operation S203 is executed; if not, operation S204 is executed.

[0091] In operation S203, the cooler 33 of the liquid cooling circulation device 3 is adjusted. Then, return to execute operation S201.

[0092] In operation S204, it is determined whether the real-time parameter is less than the minimum value of the stage target parameter range. If so, operation S205 is executed; if not, operation S206 is executed.

[0093] In operation S205, the heater 32 of the liquid cooling circulation device 3 is adjusted. Then, return to execute operation S201.

[0094] In operation S206, within the stage preset time range, the real-time parameter is maintained within the stage target parameter range.

[0095] It should be noted that based on the running duration and the stage preset time range, the stage target parameter range of the liquid cooling circulation device 3 is determined. For example, based on the running duration and the stage preset time range, it is determined that the operation is in the first stage, and the stage target parameter range for the first stage is determined, and operations S201 to S206 are executed. When it is determined based on the running duration and the stage preset time range that the operation is in the second stage and the stage target parameter range for the second stage is determined, operations S201 to S206 are executed again, and the stage target parameter range is the stage target parameter range for the second stage. When the running duration reaches the running cycle duration, the operation ends.

[0096] It can be understood that when the real-time parameter is a pressure parameter or a flow parameter, the operations are the same and will not be elaborated here.

[0097] In such an embodiment, based on the set running cycle, stage preset time range, and stage target parameter range, the liquid cooling circulation device 3 can dynamically adjust parameters such as the temperature, pressure, and flow rate of the coolant, with diverse test adjustment parameters, thereby simulating the dynamic changes of the immersion liquid cooling environment in which the device under test is located in the actual use environment and improving the accuracy of the test.

[0098] In some exemplary embodiments, the test method further includes controlling the liquid cooling circulation device 3 through a dynamic control system to jointly control the temperature, pressure, and flow rate of the coolant.

[0099] Specifically, when the temperature parameter is greater than the maximum value of the stage target parameter range, the cooler 33 of the liquid cooling circulation device 3 is adjusted, and the flowmeter is jointly adjusted to adjust the temperature parameter to the stage target parameter range. When the pressure of the coolant fluctuates, the proportional valve can be adjusted, and the flowmeter is jointly adjusted to avoid overpressure in the sealed chamber 1.

[0100] In some exemplary embodiments, as shown with reference to Figure 5 the test method further includes operations S310 to S330.

[0101] Operation S310: Determine a risk threshold for delamination of the sealing layer of the device under test based on the characteristic parameters, operating duration, and range of stage target parameters of the device under test, where the characteristic parameters include the material and structure of the device under test.

[0102] Operation S320: Determine a test risk value for delamination of the sealing layer of the device under test based on the change data of the device under test.

[0103] Operation S330: Stop the operation and issue an alarm when the test risk value is greater than the risk threshold.

[0104] Specifically, in operation S310, the characteristic parameters include the material and structure of the device under test. For example, when the device under test is a label, the characteristic parameters include the layer structures of the label and the material of each layer. Specifically, a label generally includes an adhesive layer, a main material, and a sealing layer. As described above, it will not be elaborated here. The sealing layer of the label needs to have good corrosion resistance. The sealing layer is immersed in the coolant, and there may be a phenomenon of delamination of the sealing layer due to corrosion by the coolant and erosion by the coolant.

[0105] Collect the operating duration of the test environment, the range of stage target parameters, and the characteristic parameters of the device under test, and at the same time record the data of delamination of the sealing layer of the actual device under test, and establish a prediction model for delamination of the sealing layer of the device under test using a computer learning algorithm. Specifically, the probability of delamination of the sealing layer of the device under test is 0.2, which means that there is a 20% probability of delamination of the sealing layer of the device under test in the current immersion liquid cooling environment.

[0106] In this way, based on the characteristic parameters, operating duration, and range of stage target parameters of the device under test through the prediction model, determine the risk threshold for delamination of the sealing layer of the device under test. The risk threshold can be from 0 to 0.5.

[0107] In operation S320, obtain the change data of the device under test in real time through a detection device, and determine the test risk value for delamination of the sealing layer of the device under test. The change data includes at least one of crack change data, discoloration data, deformation data, and clarity change data.

[0108] In operation S330, compare and analyze the test risk value with the risk threshold. When the test risk value is greater than the risk threshold, it indicates that the probability of delamination of the sealing layer of the device under test exceeds the risk threshold, that is, the device under test fails. Therefore, stop the operation and issue an alarm to prompt the operator.

[0109] According to an embodiment of the present application, during the testing process, the change data of the device under test is detected in real time, and the probability of the degumming of the sealing layer of the device under test is evaluated and warned, so as to prompt the operator to take measures, thereby improving the convenience of the test.

[0110] According to the testing system and method based on an immersion liquid cooling environment provided by the present application, during the testing process of the device under test, the device under test is fixed to the carrier 14 of the sealing chamber 1 to ensure the sealing of the testing environment. Then, the liquid cooling circulation device 3 conveys the coolant to the sealing chamber 1, so that the sealing chamber 1 is filled with the coolant, thereby forming an immersion liquid cooling environment in which the device under test is immersed in the coolant. At the same time, the liquid cooling circulation device 3 receives the coolant conveyed by the sealing chamber 1 to form a circulation loop. During the testing process, the acquisition device 2 obtains the real-time parameters of the coolant in the sealing chamber 1 in real time. The liquid cooling circulation device 3 adjusts the real-time parameters of the coolant conveyed into the sealing chamber 1 to the stage target parameter range to dynamically adjust the parameters of the coolant, so as to simulate the dynamic changes of the immersion liquid cooling environment in which the device under test is located in the actual use environment and improve the accuracy of the test. The detection device detects the change data of the device under test in real time during the testing process to obtain the test data of the device under test. Therefore, the technical problem of being difficult to accurately evaluate the performance indicators of the device under test in the immersion cooling environment can be solved, and the technical effect of obtaining the change data of the device under test in real time during the testing process to obtain the test data of the device under test, so as to accurately evaluate the performance indicators of the device under test in the immersion cooling environment can be achieved.

[0111] The above has introduced in detail a testing system and method based on an immersion liquid cooling environment provided by the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A test system based on an immersion liquid cooling environment, characterized in that, The test system includes: A sealed chamber (1) provided with a carrier (14) for fixing the device under test and forming a closed space in which the device under test is immersed in a coolant; An acquisition device (2) configured to acquire real-time parameters of the coolant in the sealed chamber (1); A liquid cooling circulation device (3) communicating with the sealed chamber (1) to form a circulation loop, configured to receive the coolant delivered by the sealed chamber (1) to adjust the real-time parameters of the coolant to a stage target parameter range and deliver it to the sealed chamber (1); A detection device configured to detect the change data of the device under test to obtain the test data of the device under test.

2. The test system according to claim 1, wherein A transparent observation window (15) is provided on the side wall of the sealed chamber (1) so that the detection device can detect the device under test in real time through the observation window (15) to obtain the change data of the device under test.

3. The test system according to claim 1, wherein The carrier (14) is adjustably arranged in the sealed chamber (1) and configured to adjust the position of the carrier (14) to adjust the distance of the device under test relative to the liquid level of the coolant in the sealed chamber (1).

4. The test system according to any one of claims 1 to 3, characterized in that The acquisition device (2) includes at least one of a temperature sensor, a pressure sensor, and a flow meter.

5. The test system according to any one of claims 1 to 3, characterized in that The detection device includes at least one of an image acquisition device, an ultrasonic sensor, and an infrared thermal imaging device.

6. A testing method based on an immersion liquid cooling environment, applied to the testing system described in any one of claims 1 to 5, characterized in that, The test method includes: Obtaining the real-time parameters of the coolant in the sealed chamber (1); Based on the operation duration and the stage preset time range, determining the stage target parameter range of the liquid cooling circulation device (3), where the stage preset time range represents the operation period between the start time and the end time of each stage during the operation process; Based on the real-time parameters and the stage target parameter range, controlling the liquid cooling circulation device (3) to adjust the real-time parameters to the stage target parameter range; Obtaining the change data of the device under test in the sealed chamber (1) to obtain the test data of the device under test.

7. The test method according to claim 6, characterized in that, The controlling the liquid cooling circulation device (3) to adjust the real-time parameters to the stage target parameter range includes: When the real-time parameter is greater than the maximum value of the stage target parameter range, adjusting the first adjustment device of the liquid cooling circulation device (3) to adjust the real-time parameter to the stage target parameter range; When the real-time parameter is less than the minimum value of the stage target parameter range, adjusting the second adjustment device of the liquid cooling circulation device (3) to adjust the real-time parameter to the stage target parameter range.

8. The testing method according to claim 6, characterized in that It further includes: Based on the characteristic parameters of the device under test, the operation duration, and the stage target parameter range, determining the risk threshold of the seal layer delamination of the device under test, where the characteristic parameters include the material and structure of the device under test; Based on the change data of the device under test, determining the test risk value of the seal layer delamination of the device under test; When the test risk value is greater than the risk threshold, stopping the operation and issuing an alarm.

9. The test method according to any one of claims 6 to 8, characterized in that, The real-time parameters include at least one of a temperature parameter, a pressure parameter, and a flow parameter.

10. The test method according to any one of claims 6 to 8, characterized in that, The change data includes at least one of crack change data, discoloration data, deformation data, and clarity change data.

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