Sealing test system, method and device and electronic equipment

Abstract

The invention discloses a sealing test system, method and device and electronic equipment, and the system comprises a positive pressure test channel which comprises a positive pressure gas storage device, a first sampling meter and a first valve group, and the positive pressure gas storage device comprises a first temperature sensor; the negative pressure test channel comprises a negative pressure gas storage device, a second sampling meter and a second valve group, and the negative pressure gas storage device comprises a second temperature sensor; the self-checking test channel comprises a self-checking device and a third valve group; the temperature detection passage comprises a third temperature sensor, a third sampling meter and a fourth valve group; the sealing test system corresponds to a plurality of test modes, and the sequence and time of opening and closing of the valve are adjusted, so that the test mode executed by the sealing test system is switched among the plurality of test modes. The sealing test system disclosed by the invention comprises a plurality of test modes, and the sealing test system can be used for carrying out a plurality of tests on the to-be-tested object, so that the convenience of the test process and the diversity of the application of the test system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a sealing test system, method, device and electronic equipment. Background Art

[0002] In the current electric vehicle field, sealing performance is a very important indicator for components such as power batteries and water-cooled plates. For key parts with sealing requirements such as power batteries and cold plates, the current testing method is still mainly based on traditional positive pressure airtightness testing, and most of the sealing testing equipment usually has a single working mode, only supporting positive pressure or negative pressure tests, and cannot fully meet some special test requirements for power battery and cold plate sealing tests.

[0003] Common sealing tests mainly include helium mass spectrometer leak detector testing, gas pressurization testing, deep water testing and other testing methods; most of the existing technologies use gas pressurization methods for testing, but universal testing equipment cannot fully meet the requirements of battery pack testing, and has defects such as long testing time and inaccurate test data due to temperature. Summary of the invention

[0004] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is how to improve the accuracy and convenience of sealing test.

[0005] In order to solve at least one of the above-mentioned technical problems, the present invention discloses a sealing test system, method, device and electronic equipment.

[0006] According to one aspect of the present disclosure, there is provided a sealing test system, comprising:

[0007] A positive pressure test passage, comprising a positive pressure gas storage device, a first sampling table and a first valve group connected by a first air flow pipeline, wherein the positive pressure gas storage device comprises a first temperature sensor;

[0008] A negative pressure test passage, comprising a negative pressure gas storage device, a second sampling table and a second valve group connected by a second air flow pipeline, wherein the negative pressure gas storage device comprises a second temperature sensor;

[0009] A self-testing test path, including a self-testing device and a third valve group connected via a third gas flow pipeline;

[0010] a temperature detection path, comprising a third temperature sensor, a third sampling meter, and a fourth valve group connected through a fourth air flow pipeline;

[0011] The sealing test system corresponds to a plurality of test modes, and the test mode executed by the sealing test system is switched among the plurality of test modes by adjusting the sequence and time of opening and closing of the valve.

[0012] In some possible embodiments, the first valve group includes:

[0013] A first valve having a first end and a second end, wherein the first end is connected to the output end of the positive pressure gas storage device, and the second end is connected to the first end of the first sampling meter;

[0014] The second valve has a first end and a second end, wherein the first end is connected to the second end of the first sampling meter, and the second end is connected to the object to be tested through the first air flow pipeline.

[0015] In some possible embodiments, the second valve group includes:

[0016] The first gas storage device has a first output end, and the second gas storage device has a second output end; the plurality of valves include:

[0017] A third valve having a first end and a second end, wherein the first end is connected to the output end of the negative pressure gas storage device, and the second end is connected to the first end of the second sampling meter;

[0018] The fourth valve has a first end and a second end, wherein the first end is connected to the second end of the second sampling meter, and the second end is connected to the object to be tested through the second air flow pipeline.

[0019] In a possible embodiment, the third valve group includes:

[0020] a fifth valve having a first end, wherein the first end is connected to the second end of the second valve and the second end of the fourth valve respectively;

[0021] a sixth valve having a first end and a second end, wherein the first end is connected to the first end of the self-test device, and the second end is connected to the first end of the fifth valve;

[0022] A seventh valve has a first end and a second end, wherein the first end is connected to the second end of the self-test device.

[0023] In a possible embodiment, the fourth valve group includes:

[0024] An eighth valve having a first end and a second end, wherein the first end is connected to the first end of the third sampling meter, and the second end is connected to the first end of the third temperature sensor;

[0025] a ninth valve having a first end, wherein the first end is connected to the second end of the third sampling meter;

[0026] The tenth valve has a first end and a second end, wherein the first end is connected to the second end of the third temperature sensor and the second end of the seventh valve respectively, and the second end is connected to the object to be tested.

[0027] In a possible embodiment, the sealing test system is externally connected to a plurality of air pressure sources; the plurality of air pressure sources include a first air pressure source and a second air pressure source;

[0028] The positive pressure gas storage device has an input end connected to the first gas pressure source; and

[0029] The negative pressure gas storage device has an input end connected to the second air pressure source.

[0030] According to a second aspect of the present disclosure, a sealing test method is disclosed, which is applied to any of the sealing test systems described above, and the method comprises:

[0031] Obtaining a test instruction to be executed; the test instruction to be executed includes a target test type;

[0032] Determine the target test task based on the target test type and the association between each test type;

[0033] According to the target test task, determining a first target valve from a plurality of valves; the number of the first target valves is multiple;

[0034] respectively determining the closing sequence and closing time corresponding to the plurality of first target valves;

[0035] Based on the closing sequence and closing time of the plurality of first target valves, the closing states of the plurality of first target valves are adjusted so that the sealing test system performs the target test task on the object to be tested and generates a target test result.

[0036] In some possible embodiments, the method further includes:

[0037] Obtaining a system self-check instruction; the generation time of the system self-check instruction is a preset self-check cycle;

[0038] Based on the system self-check instruction, determining a second target valve from the plurality of valves; the number of the second target valves is multiple;

[0039] respectively determining the closing sequence and closing time corresponding to the plurality of second target valves;

[0040] Based on the closing sequence and closing time of the plurality of second target valves, the closing states of the plurality of second target valves are adjusted so that the sealing test system performs a system self-check and generates a system self-check result.

[0041] In some possible embodiments, the method further includes:

[0042] Acquire initial parameters and current parameters corresponding to the object to be detected; the initial parameters include initial temperature parameters and initial test parameters corresponding to the target test task, and the current parameters include current temperature parameters after the test and current test parameters corresponding to the target detection task;

[0043] Perform result analysis based on the initial temperature parameter, the initial test parameter, the current temperature parameter and the current test parameter to obtain a test analysis result;

[0044] Determine the execution mark information corresponding to the target test task based on the test analysis result.

[0045] According to a third aspect of the present disclosure, a sealing test device is provided, comprising:

[0046] A test instruction acquisition module, used to acquire a test instruction to be executed; the test instruction to be executed includes a target test type;

[0047] A test task determination module, used to determine a target test task based on the target test type and the association relationship between each test type;

[0048] A first target valve determination module, configured to determine a first target valve from a plurality of valves according to the target test task; the number of the first target valves is multiple;

[0049] A first valve control determination module, used to respectively determine the closing sequence and closing time corresponding to a plurality of first target valves;

[0050] The test task execution module is used to adjust the closing state of the multiple first target valves based on the closing sequence and closing time of the multiple first target valves, so that the sealing test system performs the target test task on the object to be tested and generates a target test result.

[0051] According to a fourth aspect of the present disclosure, an electronic device is provided, comprising a processor and a memory, wherein the memory stores at least one instruction and at least one program, and the at least one instruction and the at least one program are loaded and executed by the processor to implement the sealing test method as described above.

[0052] According to a fifth aspect of the present disclosure, a computer storage medium is provided, in which at least one instruction and at least one program are stored, and the at least one instruction and the at least one program are loaded and executed by a processor to implement the sealing test method as described above.

[0053] The implementation of the present invention has the following beneficial effects:

[0054] In the present invention, a positive pressure test path and a negative pressure test path are integrated in a sealing test system, and a valve group is used in each test path to adjust the closing sequence and closing time of multiple valves in any test path, so as to realize different test tasks under positive pressure test and different test tasks under negative pressure test, thereby improving its scene adaptability and enabling the same sealing test system to complete test tasks of different test types; in addition, the sealing test system also includes a self-test test path and a temperature test path, and the self-test test path can perform calibration tests on the sealing test system at regular intervals to ensure the normal operation of the sealing test system and the timely discovery of system faults; the temperature test path can obtain the temperature data of the object to be tested during the test process in real time, and calibrate and analyze the test results in combination with the temperature data corresponding to multiple test processes, thereby improving the accuracy and reliability of the test results and reducing the influence of temperature changes during the sealing test process on the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 A schematic diagram of the arrangement of the sealing test system provided in an embodiment of the present invention;

[0057] Figure 2 A test mode adjustment table corresponding to the sealing test system provided in an embodiment of the present invention;

[0058] Figure 3 A schematic diagram of a flow chart corresponding to a sealing test method provided in an embodiment of the present invention;

[0059] Figure 4 A schematic diagram of a flow chart corresponding to a self-checking method for a sealing test system provided in an embodiment of the present invention;

[0060] Figure 5 A schematic diagram of a flow chart corresponding to the test result analysis provided in an embodiment of the present invention;

[0061] Figure 6 This is a schematic structural diagram corresponding to the sealing test device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0064] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0065] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0066] The term "and / or" herein is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set consisting of A, B, and C.

[0067] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0068] Figure 1The schematic diagram of the arrangement of the sealing test system provided by the embodiment of the present invention is shown; Figure 1 As shown, a sealing test system comprises:

[0069] A positive pressure test passage, comprising a positive pressure gas storage device, a first sampling table and a first valve group connected by a first air flow pipeline, wherein the positive pressure gas storage device comprises a first temperature sensor;

[0070] A negative pressure test passage, comprising a negative pressure gas storage device, a second sampling table and a second valve group connected by a second air flow pipeline, wherein the negative pressure gas storage device comprises a second temperature sensor;

[0071] A self-testing test path, including a self-testing device and a third valve group connected via a third gas flow pipeline;

[0072] a temperature detection path, comprising a third temperature sensor, a third sampling meter, and a fourth valve group connected through a fourth air flow pipeline;

[0073] The sealing test system is externally connected to a plurality of air pressure sources; the plurality of air pressure sources include a first air pressure source and a second air pressure source;

[0074] The positive pressure gas storage device has an input end connected to the first air pressure source; and the negative pressure gas storage device has an input end connected to the second air pressure source.

[0075] The sealing test system corresponds to a plurality of test modes, and the test mode executed by the sealing test system is switched among the plurality of test modes by adjusting the sequence and time of opening and closing of the valve.

[0076] For the sealing test system, in order to improve its scene adaptability, different test tasks of different test types can be completed based on the same sealing test system, wherein the object to be tested can be a power battery water cooling system, or an object that needs to be sealed; by integrating a positive pressure test path and a negative pressure test path in a sealing test system, and cooperating with a valve group in each test path, by adjusting the closing sequence and closing time of multiple valves in any test path, different test tasks under positive pressure testing and different test tasks under negative pressure testing can be achieved; in addition, the sealing test system also includes a self-test test path and a temperature test path, and the self-test test path can perform calibration tests on the sealing test system at regular intervals to ensure the normal operation of the sealing test system and the timely discovery of system faults; the temperature test path can obtain the temperature data of the object to be tested during the test process in real time, and calibrate and analyze the test results in combination with the temperature data corresponding to multiple test processes, thereby improving the accuracy and reliability of the test results and reducing the impact of temperature changes during the sealing test on the test results.

[0077] In a specific embodiment, the sealing test system includes an airflow pipeline, and various structures in the sealing test system are connected through the airflow pipeline; according to the connection structure of the airflow pipeline in the system, the airflow pipeline can be divided into a first airflow pipeline for connecting various structures in a positive pressure test passage, a second airflow pipeline for connecting various structures in a negative pressure test passage, a third airflow pipeline for connecting various structures in a self-test test passage, and a fourth airflow pipeline for connecting various structures in a temperature test passage.

[0078] Combination Figure 1 It can be seen that valve 1 corresponds to the first valve, valve 2 corresponds to the second valve, valve 3 corresponds to the third valve, valve 4 corresponds to the fourth valve, valve 5 corresponds to the fifth valve, valve 6 corresponds to the sixth valve, valve 7 corresponds to the seventh valve, valve 8 corresponds to the eighth valve, valve 9 corresponds to the ninth valve, and valve 10 corresponds to the tenth valve; M1 corresponds to the first sampling table, M2 corresponds to the second sampling table, and M3 corresponds to the third sampling table; temperature sensor 1 corresponds to the first temperature sensor, temperature sensor 2 corresponds to the second temperature sensor, and temperature sensor 3 corresponds to the third temperature sensor; the object to be tested is the object to be tested; the positive pressure source corresponds to the first air pressure source, and the negative pressure source corresponds to the second air pressure source, wherein the positive pressure source can be a compressed air system, a cylinder or an air pump, etc., to generate a pressure higher than atmospheric pressure to apply a positive pressure test, and the negative pressure source can be a vacuum pump, a negative pressure generator or a vacuum system, etc., to generate a pressure lower than atmospheric pressure to apply a negative pressure test.

[0079] In addition, in the positive pressure test path, the pipeline corresponding to the connecting path between each structure is the first airflow pipeline; in the negative pressure test path, the pipeline corresponding to the connecting path between each structure is the second airflow pipeline; in the self-test test path, the pipeline corresponding to the connecting path between each structure is the third airflow pipeline; in the temperature test path, the pipeline corresponding to the connecting path between each structure is the fourth airflow pipeline.

[0080] The positive pressure test path includes a positive pressure gas storage device, a first sampling table and a first valve group; if the external air pressure source of the sealing test system is considered, it can be considered that the positive pressure test path also includes a first air pressure source for providing positive pressure gas to the positive pressure gas storage device, that is, a positive pressure gas source; wherein the positive pressure gas storage device includes a first temperature sensor, and the temperature of the positive pressure gas used in the test process is measured by the first temperature sensor, so that the positive pressure gas storage device can be used to measure the temperature of the positive pressure gas in addition to storing the positive pressure gas; the first sampling table can be a high-precision positive pressure detection table and an airflow table, which can at least be used to measure the gas pressure and the gas flow.

[0081] In addition, in the positive pressure test path, the first valve group may include multiple valves, which may be:

[0082] A first valve having a first end and a second end, wherein the first end is connected to the output end of the positive pressure gas storage device, and the second end is connected to the first end of the first sampling meter;

[0083] The second valve has a first end and a second end, wherein the first end is connected to the second end of the first sampling meter, and the second end is connected to the object to be tested through the first air flow pipeline.

[0084] Specifically, according to the above content, in the positive pressure test path, the connection method of each structure can be: the first air pressure source (or the first air pressure source may not be included) is connected to the input end of the positive pressure gas storage device, the output end of the positive pressure gas storage device is connected to the first end of the first valve, the second end of the first valve is connected to the first end of the first sampling table, the second end of the first sampling table is connected to the first end of the second valve, and the second end of the second valve is connected to the object to be tested through the first air flow pipeline. In addition, since the first air flow pipeline needs to be depressurized after the positive pressure test is completed, it can be considered that the positive pressure test path also includes a fifth valve, and the second end of the second valve is also connected to the first end of the fifth valve, so that the pressure in the first air flow pipeline is consistent with the external pressure.

[0085] In the positive pressure test passage, the initial state of each structure can be: the positive pressure gas storage device is in the normally open state, and its usage is to take in air from the bottom and exhaust air from the top, so that the first temperature sensor can accurately measure the gas temperature; the first valve is in the normally closed state. As a valve that controls the flow direction of gas in the positive pressure test, the first valve can be considered as a positive pressure intake valve, and its function is to maintain the pressure of the positive pressure gas; the second valve is in the normally closed state, which is used to protect the first sampling table; the first sampling table is in the normally open state.

[0086] In a specific embodiment, the negative pressure test passage includes a negative pressure gas storage device, a second sampling table and a second valve group; if the external air pressure source of the sealing test system is considered, it can be considered that the negative pressure test passage also includes a second air pressure source for providing negative pressure gas to the negative pressure gas storage device, that is, a negative pressure gas source; wherein the negative pressure gas storage device includes a second temperature sensor, and the temperature of the negative pressure gas used in the test process is measured by the second temperature sensor, so that the function of the negative pressure gas storage device includes not only storing negative pressure gas, but also measuring the temperature of the negative pressure gas; the second sampling table can be a high-precision negative pressure detection table and an airflow table, which can at least be used to measure gas pressure and gas flow.

[0087] In addition, in the negative pressure test path, the second valve group may include multiple valves, which may be:

[0088] Specifically, the second valve group includes:

[0089] The first gas storage device has a first output end, and the second gas storage device has a second output end; the plurality of valves include:

[0090] A third valve having a first end and a second end, wherein the first end is connected to the output end of the negative pressure gas storage device, and the second end is connected to the first end of the second sampling meter;

[0091] The fourth valve has a first end and a second end, wherein the first end is connected to the second end of the second sampling meter, and the second end is connected to the object to be tested through the second air flow pipeline.

[0092] Specifically, according to the above content, in the negative pressure test path, the connection mode of each structure can be: the second air pressure source (or the second air pressure source may not be included) is connected to the input end of the negative pressure gas storage device, the output end of the negative pressure gas storage device is connected to the first end of the third valve, the second end of the third valve is connected to the first end of the second sampling table, the second end of the second sampling table is connected to the first end of the fourth valve, and the second end of the fourth valve is connected to the object to be tested through the second air flow pipeline. In addition, since the second air flow pipeline needs to be depressurized after the negative pressure test is completed, it can be considered that the negative pressure test path also includes a fifth valve, and the second end of the fourth valve is also connected to the first end of the fifth valve, so that the pressure in the second air flow pipeline is consistent with the external pressure.

[0093] In the negative pressure test passage, the initial state of each structure can be: the negative pressure gas storage device is in the normally open state, and its usage is to take in air from the bottom and exhaust air from the top, so that the second temperature sensor can accurately measure the gas temperature; the third valve is in the normally closed state. As a valve that controls the flow direction of gas in the negative pressure test, the third valve can be considered as a negative pressure air inlet valve, and its function is to maintain the pressure of the negative pressure gas; the fourth valve is in the normally closed state, which is used to protect the second sampling table; the second sampling table is in the normally open state.

[0094] In a specific embodiment, the self-test path includes a self-test device and a third valve group; wherein the self-test device is used to perform self-calibration on the sealing test system so as to detect the testing capability of the sealing test system, thereby processing and correcting existing faults and errors to improve the accuracy and reliability of the sealing test of the sealing system.

[0095] Specifically, the third valve group includes:

[0096] a fifth valve having a first end, wherein the first end is connected to the second end of the second valve and the second end of the fourth valve respectively;

[0097] a sixth valve having a first end and a second end, wherein the first end is connected to the first end of the self-test device, and the second end is connected to the first end of the fifth valve;

[0098] A seventh valve has a first end and a second end, wherein the first end is connected to the second end of the self-test device.

[0099] Specifically, according to the above content, in the self-test test path, the connection mode of each structure can be: the first end of the self-test device is connected to the first end of the sixth valve, the second end of the sixth valve is connected to the first end of the fifth valve, and the second end of the self-test device is connected to the first end of the seventh valve; in addition, in combination with Figure 1 It can be seen that the second end of the seventh valve can be connected to the first end of the tenth valve to achieve system self-test of the sealing test system through flow resistance and diversion detection.

[0100] In the self-test test path, the initial state of each structure can be: the self-test device is in the normally open state; the fifth valve is in the normally closed state, and its function is to relieve the pressure of the air flow pipeline connected to it; the sixth valve is in the normally closed state, and its function is to realize the air intake and outlet of the self-test device, and it can also maintain the pressure of the gas; the seventh valve is in the normally closed state, and its function is to maintain or relieve the pressure of the self-test device according to different working conditions.

[0101] In a specific embodiment, the temperature detection path includes a third temperature sensor, a third sampling table and a fourth valve group; wherein the third temperature sensor is used to measure the gas temperature inside the object to be detected outside the sealing test system, and then in the actual test process, the test results can be analyzed and judged in combination with the temperature data, thereby reducing the impact of temperature on the test results.

[0102] Specifically, the fourth valve group includes:

[0103] An eighth valve having a first end and a second end, wherein the first end is connected to the first end of the third sampling meter, and the second end is connected to the first end of the third temperature sensor;

[0104] a ninth valve having a first end, wherein the first end is connected to the second end of the third sampling meter;

[0105] The tenth valve has a first end and a second end, wherein the first end is connected to the second end of the third temperature sensor and the second end of the seventh valve respectively, and the second end is connected to the object to be tested.

[0106] Specifically, according to the above content, in the temperature test path, the connection mode of each structure can be: the first end of the ninth valve is connected to the first end of the third sampling meter, the second end of the third sampling meter is connected to the first end of the third temperature sensor, the second end of the third temperature sensor is connected to the first end of the tenth valve, and the second end of the tenth valve is connected to the object to be tested, so that the sealing test system receives the test object outside and measures the gas temperature inside the test object. Among them, the third sampling meter can be an airflow meter, which can at least be used to measure the gas flow rate.

[0107] In the temperature test path, the initial states of each structure can be: the third temperature sensor is in the normally open state, used to measure the internal gas temperature of the test object; the eighth valve is in the normally closed state, used to maintain the internal gas pressure of the test object; the ninth valve is in the normally closed state, which can be used to relieve the pressure of the fourth air flow pipeline; the tenth valve is in the normally closed state, and the system self-check and the gas temperature measurement inside the test object can be realized by adjusting the opening or closing of the tenth valve.

[0108] In addition, combined Figure 1 It can be seen that the system self-checking, positive pressure testing and negative pressure testing are independent of each other, and the air flow pipeline is depressurized only through the fifth valve and the ninth valve after the test.

[0109] In a specific embodiment, the test tasks that can be performed under positive pressure conditions can be divided into three categories, including positive pressure intake, positive pressure maintenance and positive pressure testing. Positive pressure intake includes flow resistance test, blockage test and pre-pressure maintenance threshold detection. Positive pressure maintenance includes pressure maintenance balance test and pre-test threshold detection. After executing positive pressure intake and positive pressure maintenance, positive pressure test can be performed, and different test tasks can be achieved by adjusting the closing order and closing time of each valve.

[0110] The test tasks that can be performed under negative pressure conditions can also be divided into three categories, including negative pressure pumping, negative pressure holding and negative pressure testing. Negative pressure pumping includes flow resistance test and threshold detection before pressure holding, and negative pressure holding includes pressure holding balance test and threshold detection before test. After performing negative pressure pumping and negative pressure holding, negative pressure test can be performed. Different test tasks can be achieved by adjusting the closing order and closing time of each valve.

[0111] In the above test tasks, whether it is positive pressure conditions or negative pressure conditions, the flow resistance test can be a test on the flow resistance characteristics of the power battery cold plate system; the blockage detection function can be a test for possible blockage at the water inlet of the water cooling plate; the negative pressure detection function can be a function for strengthening the sealing detection of the water cooling plate.

[0112] For temperature detection, it can include temperature self-test, and can use a third temperature sensor to detect the ambient temperature (i.e., the gas temperature inside the object to be tested), a first temperature sensor to detect the gas temperature during the positive pressure test, and a second temperature sensor to detect the gas temperature during the negative pressure test.

[0113] For system self-check, it can be implemented by following the positive pressure flow resistance detection process or the negative pressure flow resistance detection process, or following the positive pressure test process or the negative pressure test process, wherein the object to be tested in the test process can be replaced with a self-check device; system self-check can be performed before the test starts along with the test task, or a preset self-check cycle can be set to trigger system self-check regularly, so as to facilitate real-time detection of the system test capability (i.e. positive pressure flow resistance, positive pressure holding, negative pressure flow resistance and negative pressure holding), thereby improving the accuracy and reliability of the test data.

[0114] In addition, for the storage of temperature data and other test data, a three-level architecture can be adopted, which is stored locally, in a local area network, and in a test database, respectively, to ensure that previous data can support the use of the test process under any conditions. Also, when inputting positive pressure gas into a positive pressure gas storage device or inputting negative pressure gas into a negative pressure gas storage device, the test environment temperature (i.e., the gas temperature inside the object to be detected) can be obtained in combination with the test environment temperature obtained by the third sensor temperature, so that the temperature of the positive pressure gas and / or the temperature of the negative pressure gas is less different from the test environment temperature, and at the same time, the first temperature sensor set in the positive pressure gas storage device and / or the second temperature sensor set in the negative pressure gas storage device are combined to detect the gas temperature during the test in real time, and at the same time, the characteristics of the flow resistance test are used to detect the test environment gas temperature corresponding to the object to be detected, so as to obtain more temperature parameters, which is convenient for the subsequent analysis of the test results based on the temperature data, that is, in the sealing test system, the test result verification function can be realized by combining the temperature data, thereby reducing the impact of temperature changes on the test results and improving the accuracy of the sealing test.

[0115] Figure 2 The test mode adjustment table corresponding to the sealing test system provided in the embodiment of the present invention is as follows: Figure 2 As shown, in a specific embodiment, the sealing test system can analyze and perform temperature detection, system self-check, test under positive pressure conditions and test under negative pressure conditions. Figure 2 Determine the control method corresponding to different test tasks. For example, for the flow resistance test under positive pressure test, the working range of the equipment is positive pressure test, the corresponding major step is positive pressure intake, and the detailed step is flow resistance detection, which needs to meet the conditions (i.e. Figure 2 The judgment condition in the above example can be: 1. Setting the first countdown time, i.e. Figure 2The flow resistance detection in the flow resistance detection specifies the countdown time, 2. The system flow resistance of the object to be tested is less than the preset flow resistance; the closing order and closing time of each structure in the sealing test system can be: 1. For the PASS hardware action, when the test starts, valve 9, valve 8, valve 2 and valve 1 are closed in sequence, and valve 8 and valve 9 are disconnected in sequence when the test ends, 2. For the FAI L hardware action, valve 1, valve 8, valve 9 can be disconnected in sequence → valve 5 is closed (time is about 3s) → valve 2 and valve 5 are disconnected in sequence. Through the adjustment of the valves in the above process, and the input of positive pressure gas by the first air pressure source, the sealing test system can perform flow resistance test under positive pressure conditions.

[0116] The present invention will not elaborate on the adjustment of valves in other test tasks, and can be based on Figure 2 The disclosed test mode adjustment table is determined in sequence. It should be understood that if the sealing test system performs Figure 2 All the test tasks shown in the figure can execute system self-check, preparation before test, temperature self-check, test under positive pressure condition and test under negative pressure condition in sequence; for the execution order of all the test tasks, preparation before test needs to execute the test under positive pressure condition and the test under negative pressure condition; system self-check can be executed every time a test task is performed, or the system self-check can be triggered regularly according to a preset self-check cycle; and, when all the test tasks under positive pressure condition are completed, the air flow pipeline is depressurized, and negative pressure gas is introduced to perform the test under negative pressure condition, or when all the test tasks under negative pressure condition are completed, the air flow pipeline is depressurized, and positive pressure gas is introduced to perform the test under positive pressure condition, that is, the present invention does not limit whether the test under positive pressure condition is executed first or the test under negative pressure condition is executed first, but the test task corresponding to one air pressure condition should be executed first in the test task, and then the test task corresponding to another air pressure condition should be executed.

[0117] pass Figure 2 By adjusting the closing sequence and closing time of multiple valves in each working step and combining different judgment conditions, various test tasks for the test object can be completed; at the same time, it can allow testers to flexibly configure the test process so that it can meet both the normal test process and the individual step test requirements of the experimenter, thereby improving the flexibility of the test; combining multiple tests in the same sealing test system can reduce the test time cost and labor cost and improve the test efficiency.

[0118] A sealing test method corresponding to the sealing test system described above will be described below.

[0119] Figure 3A flowchart corresponding to the sealing test method provided in an embodiment of the present invention; the execution subject may be any terminal or electronic device that can issue instructions to the sealing test system so that the sealing test system executes the sealing test method based on the instructions. Specifically, Figure 3 As shown, the method includes:

[0120] Step S301: obtaining a test instruction to be executed; the test instruction to be executed includes a target test type;

[0121] In a specific embodiment, when there is a test requirement, the target user (i.e., tester, experimenter, etc.) will operate at the software level to issue test instructions that can be executed. The test instructions to be executed may include the target test type, such as positive pressure flow resistance test, negative pressure flow resistance test, etc.; in addition, the test instructions to be executed may also include the test execution time, so that the test object can be tested regularly.

[0122] Step S302: determining a target test task based on the target test type and the association between each test type;

[0123] In a specific embodiment, there is an association between various test types. For example, a pre-pressure holding threshold test needs to be performed before a pre-test threshold test. Then, when the target test type is a pre-test threshold test, based on the relationship between the test types, it is confirmed that the target test task also includes a pre-pressure holding threshold test in addition to the pre-test threshold test.

[0124] Step S303: determining a first target valve from a plurality of valves according to the target test task; the number of the first target valves is multiple;

[0125] In a specific embodiment, according to the target test task to be performed, the valve to be opened or closed, i.e., the first target valve, is determined. In a test task, the number of target valves can generally be multiple; specifically, the first target valve corresponding to the target test task can be determined according to Figure 2 It is determined that, for example, for the positive pressure flow resistance test, the first target valves may include valve 9 , valve 8 , valve 2 , valve 1 , and valve 5 .

[0126] Step S304: respectively determining the closing order and closing time corresponding to the plurality of first target valves;

[0127] In a specific embodiment, after determining the first target valve, the closing sequence and closing time corresponding to the plurality of first valves are determined. For example, for the positive pressure flow resistance test, the valve closing sequence may be: when starting the test, valve 9, valve 8, valve 2 and valve 1 are closed in sequence; when ending the test, valve 8 and valve 9 are opened in sequence; valve 1, valve 8 and valve 9 are opened in sequence → valve 5 is closed → valve 2 and valve 5 are opened in sequence; the closing time may be valve 5 is closed for 3 seconds; in addition, combined with Figure 2 It is understandable that not every valve has a closing time requirement. Whether the closing time needs to be determined can be combined with Figure 2 Sure.

[0128] Step S305: Based on the closing sequence and closing time of the plurality of first target valves, adjusting the closing states of the plurality of first target valves so that the sealing test system performs the target test task on the object to be tested and generates a target test result.

[0129] In a specific embodiment, the first target valve, and the closing sequence and closing time corresponding to the first target valve are determined, that is, the closing states of the plurality of first target valves are adjusted according to the closing sequence and closing time, so that the sealing test system can perform the corresponding target test task and generate the corresponding target test result. The closing state corresponding to the valve may include adjustment from an open state to a closed state, and may also include adjustment from a closed state to an open state.

[0130] Through steps S301-S305, the sealing test system can be switched between different test tasks, so that the same sealing test system can meet different test requirements, thereby improving the scenario adaptability and test diversity of the sealing test system.

[0131] Figure 4 A flow chart corresponding to the self-test method of the sealing test system provided in an embodiment of the present invention; Figure 4 As shown, the method also includes:

[0132] Step S401: obtaining a system self-check instruction; the generation time of the system self-check instruction is a preset self-check cycle;

[0133] In a specific embodiment, since the system self-test can be triggered periodically by a preset self-test cycle, the system self-test instruction can determine the generation time according to the preset self-test cycle. For example, if the initial time is 1 o'clock and the preset self-test cycle is 2 hours, the system self-test instruction can be generated at 3 o'clock, 5 o'clock, 7 o'clock, etc. In addition, since the system self-test corresponds to different types, the system self-test instruction can also include the self-test type to determine whether flow resistance detection, positive pressure self-test or negative pressure self-test needs to be performed; when the system self-test instruction does not include the self-test type, it can be considered that the system self-test of all self-test types needs to be performed.

[0134] Step S402: Based on the system self-check instruction, determine a second target valve from the plurality of valves; the number of the second target valves is multiple;

[0135] Step S403: respectively determining the closing order and closing time corresponding to the plurality of second target valves;

[0136] Step S404: Based on the closing sequence and closing time of the plurality of second target valves, adjusting the closing states of the plurality of second target valves so that the sealing test system performs a system self-check and generates a system self-check result.

[0137] In a specific embodiment, after the system self-check instruction is generated, the sealing test system can be self-checked according to the self-check type; specifically, it can be combined with Figure 2 Determine the second target valve in the system self-test process, as well as the closing time and closing sequence corresponding to the second target valve, thereby realizing the self-test of the sealing test system and obtaining the system self-test result. Steps S402 to S404 are similar or identical to steps S303 to S305, and will not be described in detail here.

[0138] Specifically, if the system self-test results indicate that there are no abnormalities in the testing capabilities and various structures in the sealing test system, it is considered that the sealing test system can perform various types of tests normally. If the system self-test results indicate that there are abnormalities in the testing capabilities and / or at least one of the various structures in the sealing test system, an abnormal alarm message can be generated to prompt the target user to perform maintenance on the sealing test system in a timely manner.

[0139] Figure 5 The following is a schematic diagram showing the flow chart of the test result analysis provided by the embodiment of the present invention; Figure 5 As shown, the method also includes:

[0140] Step S501: Acquire initial parameters and current parameters corresponding to the object to be detected; the initial parameters include initial temperature parameters and initial test parameters corresponding to the target test task, and the current parameters include current temperature parameters after the test and current test parameters corresponding to the target detection task;

[0141] In a specific embodiment, there is a test database for storing various temperature parameters stored in each working process of the sealing test system, such as initial temperature parameters and current temperature parameters, and can also be used to store other test data except temperature parameters, such as initial test parameters and current test parameters, etc. The test parameters may include flow resistance values, temperature parameters, air pressure values, time parameters, etc.

[0142] Step S502: performing result analysis based on the initial temperature parameter, the initial test parameter, the current temperature parameter and the current test parameter to obtain a test analysis result;

[0143] Step S503: Determine the execution mark information corresponding to the target test task based on the test analysis result.

[0144] In a specific embodiment, based on the historical data accumulated in the database, the three position temperatures at the start time of each test task (i.e., initial temperature parameters and initial test parameters) and the three position temperatures at the end time (i.e., current temperature parameters and current test parameters) are used as benchmarks, where the position temperatures can be the positive pressure gas temperature to be measured, the negative pressure gas temperature to be measured, and the gas temperature in the battery pack, respectively. The historical test data corresponding to the existing objects to be tested are retrieved in the test database, and the temperature parameters are combined to analyze whether the data caused by the temperature difference between the gas temperature and the object to be tested meets the test standard specified at the ideal temperature. For example, by comparing the temperature data, the initial test data, the current test data, and the historical test data, and using the current test data to make a difference with the benchmark value, if the difference obtained is less than the preset test error, the test analysis result is considered to be OK, and the confidence is calculated based on the ratio of the difference to the preset test error. A high confidence level corresponds to a high accuracy and reliability. If the difference obtained is greater than the preset test error, the test analysis result is considered to be NG, and the confidence is calculated based on the ratio of the difference to the preset test error. A low confidence level corresponds to a low accuracy and reliability. The execution mark information may include the test analysis results and the corresponding confidence information.

[0145] The embodiment of the present invention also provides a sealing test device, such as Figure 6 As shown, the device comprises:

[0146] The test instruction acquisition module 610 is used to acquire the test instruction to be executed; the test instruction to be executed includes a target test type;

[0147] A test task determination module 620, configured to determine a target test task based on the target test type and the association between the test types;

[0148] A first target valve determination module 630 is used to determine a first target valve from a plurality of valves according to the target test task; the number of the first target valves is multiple;

[0149] A first valve control determination module 640, for respectively determining a closing sequence and a closing time corresponding to a plurality of first target valves;

[0150] The test task execution module 650 is used to adjust the closing state of the multiple first target valves based on the closing sequence and closing time of the multiple first target valves, so that the sealing test system performs the target test task on the object to be tested and generates a target test result.

[0151] In some other embodiments, the device further comprises:

[0152] A self-check instruction acquisition module is used to acquire a system self-check instruction; the generation time of the system self-check instruction is a preset self-check cycle;

[0153] A second target valve determination module, configured to determine a second target valve from the plurality of valves based on the system self-check instruction; the number of the second target valves is multiple;

[0154] A second valve control determination module, used to respectively determine the closing sequence and closing time corresponding to a plurality of second target valves;

[0155] The system self-check module is used to adjust the closing state of the plurality of second target valves based on the closing sequence and closing time of the plurality of second target valves, so that the sealing test system performs a system self-check and generates a system self-check result.

[0156] In some other embodiments, the device further comprises:

[0157] A parameter acquisition module, used to acquire initial parameters and current parameters corresponding to the object to be detected; the initial parameters include initial temperature parameters and initial test parameters corresponding to the target test task, and the current parameters include current temperature parameters after the test and current test parameters corresponding to the target detection task;

[0158] A result analysis module, used to perform result analysis based on the initial temperature parameter, the initial test parameter, the current temperature parameter and the current test parameter to obtain a test analysis result;

[0159] A marking information determination module is used to determine the execution marking information corresponding to the target test task based on the test analysis result.

[0160] The device and method embodiments in the device embodiment are based on the same inventive concept and are used to implement the above-mentioned sealing test method.

[0161] An embodiment of the present invention also provides an electronic device, comprising: a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement a sealing test method as described in any one of the method embodiments.

[0162] An embodiment of the present invention also provides a storage medium, which can be set in a server to store at least one instruction, at least one program, a code set or an instruction set for implementing any of the sealing test methods described in the method embodiments. The at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement any of the sealing test methods described in the method embodiments.

[0163] Optionally, in an embodiment of the present invention, the above-mentioned storage medium may be located in at least one of a plurality of network servers of a computer network. Optionally, in an embodiment of the present invention, the above-mentioned storage medium may include, but is not limited to, various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0164] According to the embodiments provided by the present invention, the present invention integrates a positive pressure test path and a negative pressure test path in a sealing test system, cooperates with a valve group in each test path, and adjusts the closing sequence and closing time of multiple valves in any test path to achieve different test tasks under positive pressure testing and different test tasks under negative pressure testing, thereby improving scene adaptability and enabling the same sealing test system to complete test tasks of different test types; in addition, the sealing test system also includes a self-test test path and a temperature test path, and the self-test test path can perform calibration tests on the sealing test system at regular intervals to ensure the normal operation of the sealing test system and timely detection of system faults; the temperature test path can obtain the temperature data of the object to be tested during the test process in real time, and calibrate and analyze the test results in combination with the temperature data corresponding to multiple test processes, thereby improving the accuracy and reliability of the test results and reducing the impact of temperature changes during the sealing test process on the test results.

[0165] It should be noted that various embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used in this article is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A sealing test system, characterized in that: The system comprises: A positive pressure test passage, comprising a positive pressure gas storage device, a first sampling table and a first valve group connected by a first air flow pipeline, wherein the positive pressure gas storage device comprises a first temperature sensor; A negative pressure test passage, comprising a negative pressure gas storage device, a second sampling table and a second valve group connected by a second air flow pipeline, wherein the negative pressure gas storage device comprises a second temperature sensor; A self-testing test path, including a self-testing device and a third valve group connected via a third gas flow pipeline; a temperature detection path, comprising a third temperature sensor, a third sampling meter, and a fourth valve group connected through a fourth air flow pipeline; The sealing test system corresponds to a plurality of test modes, and the test mode executed by the sealing test system is switched among the plurality of test modes by adjusting the sequence and time of opening and closing of the valve.

2. The sealing test system according to claim 1, characterized in that: The first valve group includes: A first valve having a first end and a second end, wherein the first end is connected to the output end of the positive pressure gas storage device, and the second end is connected to the first end of the first sampling meter; The second valve has a first end and a second end, wherein the first end is connected to the second end of the first sampling meter, and the second end is connected to the object to be tested through the first air flow pipeline.

3. The sealing test system according to claim 1, characterized in that: The second valve group includes: The first gas storage device has a first output end, and the second gas storage device has a second output end; the plurality of valves include: A third valve having a first end and a second end, wherein the first end is connected to the output end of the negative pressure gas storage device, and the second end is connected to the first end of the second sampling meter; The fourth valve has a first end and a second end, wherein the first end is connected to the second end of the second sampling meter, and the second end is connected to the object to be tested through the second air flow pipeline.

4. The sealing test system according to claim 1, characterized in that: The third valve group includes: a fifth valve having a first end, wherein the first end is connected to the second end of the second valve and the second end of the fourth valve respectively; a sixth valve having a first end and a second end, wherein the first end is connected to the first end of the self-test device, and the second end is connected to the first end of the fifth valve; A seventh valve has a first end and a second end, wherein the first end is connected to the second end of the self-test device.

5. The sealing test system according to claim 4, characterized in that: The fourth valve group includes: An eighth valve having a first end and a second end, wherein the first end is connected to the first end of the third sampling meter, and the second end is connected to the first end of the third temperature sensor; a ninth valve having a first end, wherein the first end is connected to the second end of the third sampling meter; The tenth valve has a first end and a second end, wherein the first end is connected to the second end of the third temperature sensor and the second end of the seventh valve respectively, and the second end is connected to the object to be tested.

6. The sealing test system according to claim 1, characterized in that: The sealing test system is externally connected to a plurality of air pressure sources; the plurality of air pressure sources include a first air pressure source and a second air pressure source; The positive pressure gas storage device has an input end connected to the first gas pressure source; and The negative pressure gas storage device has an input end connected to the second air pressure source.

7. A sealing test method, applied to the sealing test system according to any one of claims 1 to 6, characterized in that: The method comprises: Obtaining a test instruction to be executed; the test instruction to be executed includes a target test type; Determine the target test task based on the target test type and the association between each test type; According to the target test task, determining a first target valve from a plurality of valves; the number of the first target valves is multiple; respectively determining the closing sequence and closing time corresponding to the plurality of first target valves; Based on the closing sequence and closing time of the plurality of first target valves, the closing states of the plurality of first target valves are adjusted so that the sealing test system performs the target test task on the object to be tested and generates a target test result.

8. A sealing test method according to claim 7, characterized in that: The method further comprises: Obtaining a system self-check instruction; the generation time of the system self-check instruction is a preset self-check cycle; Based on the system self-check instruction, determining a second target valve from the plurality of valves; the number of the second target valves is multiple; respectively determining the closing sequence and closing time corresponding to the plurality of second target valves; Based on the closing sequence and closing time of the plurality of second target valves, the closing states of the plurality of second target valves are adjusted so that the sealing test system performs a system self-check and generates a system self-check result.

9. A sealing test method according to claim 7, characterized in that: The method further comprises: Acquire initial parameters and current parameters corresponding to the object to be detected; the initial parameters include initial temperature parameters and initial test parameters corresponding to the target test task, and the current parameters include current temperature parameters after the test and current test parameters corresponding to the target test task; Perform result analysis based on the initial temperature parameter, the initial test parameter, the current temperature parameter and the current test parameter to obtain a test analysis result; Determine the execution mark information corresponding to the target test task based on the test analysis result.

10. A sealing test device, characterized in that: The device comprises: A test instruction acquisition module, used to acquire a test instruction to be executed; the test instruction to be executed includes a target test type; A test task determination module, used to determine a target test task based on the target test type and the association relationship between each test type; A first target valve determination module, configured to determine a first target valve from a plurality of valves according to the target test task; the number of the first target valves is multiple; A first valve control determination module, used to respectively determine the closing sequence and closing time corresponding to a plurality of first target valves; The test task execution module is used to adjust the closing state of the multiple first target valves based on the closing sequence and closing time of the multiple first target valves, so that the sealing test system performs the target test task on the object to be tested and generates a target test result.

11. An electronic device, comprising a processor and a memory, wherein the memory stores at least one instruction and at least one program, and the at least one instruction and the at least one program are loaded and executed by the processor to implement the sealing test method as described in any one of claims 7 to 9.

12. A computer storage medium, wherein at least one instruction and at least one program are stored in the computer storage medium, wherein the at least one instruction and the at least one program are loaded and executed by a processor to implement the sealing test method as described in any one of claims 7 to 9.

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