A method and system for testing the electrical performance of a battery pack cover.

Abstract

This invention discloses a method and system for testing the electrical performance of a battery pack cover, relating to the technical field of battery performance testing. The method includes: generating an equipment inspection signal when the battery pack cover is grasped; performing an automatic battery cover testing device to generate equipment inspection results; performing multi-dimensional electrical performance testing on the battery pack cover to obtain a first sequence of cover testing; performing interference compensation for the testing scene to obtain a second sequence of cover testing; inputting the cover electrical performance testing model to obtain a first result of cover testing; performing misjudgment suppression verification to obtain a second result of cover testing; and performing dual-band adaptive transmission. This invention solves the technical problems in existing technologies, such as the difficulty in comprehensively evaluating the cover's electrical performance, the susceptibility of testing results to environmental interference, leading to poor efficiency, accuracy, and reliability of electrical performance testing, and a high misjudgment rate. It achieves the technical effect of improving the efficiency, accuracy, and reliability of battery cover electrical performance testing and reducing the misjudgment rate.

Description

Technical Field

[0001] This application relates to the technical field of battery performance testing, specifically to a method and system for testing the electrical performance of a battery pack cover. Background Technology

[0002] As a key component of lithium-ion batteries, the battery pack cover is not only used to seal the battery and prevent electrolyte leakage, but also for internal circuit connections and signal transmission. Its electrical performance directly affects the battery's safety, stability, and lifespan. Problems with the battery pack cover's electrical performance can lead to short circuits, overheating, or even explosions. Therefore, accurate and efficient electrical performance testing is crucial. Traditional battery pack cover electrical performance testing often uses single-dimensional testing equipment, such as testing only insulation resistance or only conductivity, which cannot comprehensively evaluate the battery pack cover's electrical performance and is prone to missed or false detections. Furthermore, electromagnetic interference in the actual testing environment, the equipment's own precision errors, and vibrations during transmission all affect the accuracy of the test results. At the same time, the existing testing process lacks an effective mechanism to suppress false judgments, resulting in insufficient reliability of the test results and making it difficult to flexibly and efficiently transfer and process the cover based on the test results.

[0003] Therefore, current technologies suffer from several technical problems, including difficulty in comprehensively evaluating the electrical performance of the cover plate during battery testing, susceptibility of test results to environmental interference, resulting in poor efficiency, accuracy, and reliability of electrical performance testing, and a high rate of misjudgment. Summary of the Invention

[0004] This application provides a method and system for testing the electrical performance of a battery pack cover, which solves the technical problems in the prior art, such as the difficulty in comprehensively evaluating the electrical performance of the cover during battery testing, the susceptibility of test results to environmental interference, resulting in poor efficiency, accuracy and reliability of electrical performance testing, and a high false judgment rate. It achieves the technical effect of improving the efficiency, accuracy and reliability of battery cover electrical performance testing and reducing the false judgment rate.

[0005] This application provides a method for testing the electrical performance of a battery pack cover. The method includes: generating an equipment inspection signal when a suction cup picks up the battery pack cover to a testing station; performing an automatic battery pack cover testing device based on the equipment inspection signal to generate an equipment inspection result; controlling the automatic battery pack cover testing device to perform multi-dimensional electrical performance testing on the battery pack cover based on the equipment inspection result to obtain a first sequence of cover detection; performing interference compensation on the first sequence of cover detection to obtain a second sequence of cover detection; inputting the second sequence of cover detection into a cover electrical performance testing model to obtain a first result of cover detection; performing misjudgment suppression verification based on the first result of cover detection to obtain a second result of cover detection; and performing dual-band adaptive transmission of the battery pack cover based on the second result of cover detection.

[0006] In a possible implementation, the method for testing the electrical performance of a battery pack cover further includes the following steps: when the equipment inspection result is normal, the battery pack cover is subjected to a positive and negative electrode conformal high-voltage test using the automatic battery pack cover testing equipment to obtain cover conformal high-voltage test data; when the equipment inspection result is normal, the battery pack cover is subjected to a positive and negative electrode withstand voltage test using the automatic battery pack cover testing equipment to obtain cover withstand voltage test data; when the equipment inspection result is normal, the battery pack cover is subjected to an insulation resistance test using the automatic battery pack cover testing equipment to obtain cover resistance test data; when the equipment inspection result is normal, the battery pack cover is subjected to a flatness test using the automatic battery pack cover testing equipment to obtain cover flatness test data; and a first sequence for cover detection is constructed based on the cover conformal high-voltage test data, the cover withstand voltage test data, the cover resistance test data, and the cover flatness test data.

[0007] In a possible implementation, the method for detecting the electrical performance of a battery pack cover plate further includes the following steps: collecting detection scene parameters for the first sequence of cover plate detection to obtain quaternary detection scene data; performing anomaly detection based on the quaternary detection scene data to obtain quaternary scene anomaly detection results; identifying electrical performance detection interference based on the quaternary scene anomaly detection results to obtain quaternary scene anomaly interference factors; and performing mapping compensation on the first sequence of cover plate detection based on the quaternary scene anomaly interference factors to generate the second sequence of cover plate detection.

[0008] In a possible implementation, the method for testing the electrical performance of a battery pack cover further includes the following steps: retrieving electrical performance testing benchmark samples based on the cover specifications of the battery pack cover to obtain a cover testing benchmark sequence; mapping and comparing the cover testing benchmark sequence with the cover testing second sequence to construct a cover testing quaternary comparison vector; and inputting the cover testing quaternary comparison vector into the cover electrical performance testing model to generate the cover testing first result.

[0009] In a possible implementation, the method for testing the electrical performance of a battery pack cover further includes the following steps: acquiring testing operation parameters based on the first result of the cover test to obtain quaternary testing operation data; performing deviation detection based on the quaternary testing operation data to determine an electrical performance test deviation factor; controlling the automatic battery cover testing device to perform compensation testing on the battery pack cover based on the electrical performance test deviation factor to obtain cover compensation testing data; correcting the second cover test sequence based on the cover compensation testing data to obtain a third cover test sequence; and inputting the third cover test sequence into the cover electrical performance testing model to obtain the second result of the cover test.

[0010] In a possible implementation, the method for testing the electrical performance of a battery pack cover plate further includes the following steps: performing deviation identification based on the quaternary detection operation data to obtain a quaternary operation deviation identification result; evaluating the impact of the cover plate detection first result based on the quaternary operation deviation identification result to obtain a quaternary operation deviation impact coefficient; determining whether the quaternary operation deviation impact coefficient is greater than or equal to the operation deviation impact threshold to obtain a quaternary deviation impact judgment result; and mapping the multidimensional electrical performance detection factors based on the quaternary deviation impact judgment result to generate the electrical performance detection deviation factor.

[0011] In a possible implementation, the method for testing the electrical performance of a battery pack cover further includes the following steps: retrieving a standard cover sample and a defective cover sample based on the equipment inspection signal; performing an inspection on the automatic battery cover inspection equipment based on the standard cover sample to obtain a first inspection result; performing an inspection on the automatic battery cover inspection equipment based on the defective cover sample to obtain a second inspection result; and generating the equipment inspection result based on the first inspection result and the second inspection result.

[0012] In a possible implementation, the method for testing the electrical performance of a battery pack cover further includes the following steps: performing electrical performance testing on a standard sample of the cover using the automatic battery cover testing equipment to obtain standard sample testing data; comparing the standard sample testing benchmark data with the standard sample testing data to generate equipment testing accuracy; determining whether the equipment testing accuracy meets the testing accuracy constraint, and generating the first inspection result.

[0013] In a possible implementation, the method for testing the electrical performance of a battery pack cover plate further includes the following processing: when the equipment inspection result is an inspection abnormality, an equipment maintenance signal is generated.

[0014] This application also provides an electrical performance testing system for a battery pack cover. The system includes: an inspection signal generation module, used to generate an equipment inspection signal when a suction cup picks up the battery pack cover to the testing station; an inspection result generation module, used to perform an inspection on an automatic battery pack cover testing device based on the equipment inspection signal, and generate an equipment inspection result; an electrical performance testing module, used to control the automatic battery pack cover testing device to perform multi-dimensional electrical performance testing on the battery pack cover based on the equipment inspection result, and obtain a first sequence of cover detection; an interference compensation module, used to perform detection scene interference compensation on the first sequence of cover detection, and obtain a second sequence of cover detection; a first detection result acquisition module, used to input the second sequence of cover detection into a cover electrical performance testing model, and obtain a first detection result; and a second detection result acquisition module, used to perform misjudgment suppression verification based on the first detection result of the cover, obtain a second detection result of the cover, and perform dual-band adaptive transmission of the battery pack cover based on the second detection result of the cover.

[0015] This application proposes a method and system for testing the electrical performance of battery pack covers. When the battery pack cover is grasped, an equipment inspection signal is generated; an automatic battery cover inspection device is used to perform an inspection, generating the inspection result; multi-dimensional electrical performance testing is performed on the battery pack cover to obtain a first sequence of cover inspection results; interference compensation is performed on the inspection scene to obtain a second sequence of cover inspection results; the cover electrical performance testing model is input to obtain a first result of cover inspection; misjudgment suppression verification is performed to obtain a second result of cover inspection results; and dual-band adaptive transmission is performed. This solves the technical problems in existing technologies, such as the difficulty in comprehensively evaluating the cover electrical performance, the susceptibility of inspection results to environmental interference, resulting in poor efficiency, accuracy, and reliability of electrical performance testing, and a high misjudgment rate. It achieves the technical effect of improving the efficiency, accuracy, and reliability of battery cover electrical performance testing and reducing the misjudgment rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments of this disclosure will be briefly described below. Flowcharts are used in this application to illustrate the operations performed by the system according to the embodiments of this application. It should be understood that the preceding or following operations are not necessarily performed precisely in sequence. Instead, various steps can be processed in reverse order or simultaneously as needed. Furthermore, other operations can be added to these processes, or one or more steps can be removed from these processes.

[0017] Figure 1 This is a schematic flowchart of a method for testing the electrical performance of a battery pack cover provided in an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the electrical performance testing system for a battery pack cover provided in an embodiment of this application.

[0019] Explanation of reference numerals in the attached diagram: Inspection signal generation module 10, Inspection result generation module 20, Electrical performance detection module 30, Interference compensation module 40, First detection result acquisition module 50, Second detection result acquisition module 60. Detailed Implementation

[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application.

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application will be provided in conjunction with the accompanying drawings. The described embodiments should not be considered as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the following description, references to "some embodiments" describe a subset of all possible embodiments. However, it is understood that "some embodiments" can be the same or different subsets of all possible embodiments and can be combined with each other without conflict. The terms "first" and "second" are used merely to distinguish similar objects and do not represent a specific ordering of objects. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. 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 explicitly listed, but may include other steps or modules not explicitly listed or inherent to these processes, methods, products, or devices. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only.

[0023] This application provides a method for testing the electrical performance of a battery pack cover, such as... Figure 1 As shown, the method includes:

[0024] Step S100: When the suction cup picks up the battery pack cover to the inspection station, an equipment inspection signal is generated.

[0025] Preferably, when the suction cup used to grip the cover plate picks up the battery pack cover plate and places it in the working position (testing station) for electrical performance testing, an equipment inspection signal is generated. Specifically, from the perspective of equipment operation, the equipment inspection signal is generated to trigger the inspection program of the automatic battery cover plate testing equipment to confirm whether each key component of the equipment is in normal working condition, such as whether the circuit of the testing equipment is normal, whether the sensor is sensitive and accurate, and whether the parameter settings of the testing instrument are correct, thereby ensuring that the electrical performance test results of the battery pack cover plate are reliable and accurate.

[0026] Step S200: Perform an inspection on the automatic battery cover inspection device based on the device inspection signal, and generate the device inspection result.

[0027] Preferably, upon receiving the equipment inspection signal, the testing equipment initiates a self-test verification, including hardware checks, parameter checks, and functional tests, to determine whether it is in normal working condition. Specifically, the hardware check may include mechanical component checks, electrical component checks, and sensor checks. The mechanical component check refers to inspecting the mechanical structures in the equipment used for gripping, conveying, and positioning the battery pack cover, such as suction cups, conveyor belts, and clamps, to check for wear, looseness, deformation, etc., to ensure accurate operation of the battery pack cover. The electrical component check refers to testing the electrical components of the equipment, including power modules, wires and cables, relays, contactors, etc., such as checking whether the power supply is stable and whether there are faults such as short circuits, open circuits, and leakage in each electrical component, to ensure the electrical safety and normal operation of the equipment. The sensor check refers to testing the sensitivity, accuracy, and stability of various sensors in the equipment (such as position sensors, pressure sensors, temperature sensors, etc.).

[0028] Preferably, parameter checks may include testing program checks and parameter setting checks. Testing program checks refer to checking whether the testing software program running the equipment is normal, whether there are program errors, vulnerabilities, or version incompatibility, etc., to ensure that the software can correctly control the equipment's operation process and accurately collect and process test data. Parameter setting checks refer to verifying whether the equipment's testing parameter settings are correct, including testing voltage, current, time, etc., to ensure that they match the specifications and testing requirements of the battery pack cover.

[0029] Preferably, functional testing may include simulated testing and data acquisition and transmission testing. Simulated testing involves the equipment performing testing actions without actually testing the battery pack cover, checking whether each function of the equipment can be implemented normally. This includes simulating the suction cup gripping the cover, conveying it to the testing station, and performing electrical performance testing. The test observes whether the equipment can accurately execute the preset procedures and requirements, and whether the coordination between components is smooth. Data acquisition and transmission testing checks whether the equipment's data acquisition unit can accurately collect various data during the testing process, such as resistance, voltage, and current values, and correctly transmit the data to verify the accuracy and stability of data acquisition and transmission. Finally, the test results are combined to generate equipment inspection results, clearly indicating whether the equipment has passed the inspection. If problems are found, the inspection results list the details, such as a damaged component or incorrect parameter settings, so that maintenance personnel can promptly repair and adjust the equipment, ensuring it is in optimal working condition before formally conducting electrical performance testing of the battery pack cover, thereby improving the accuracy and reliability of the test results.

[0030] Furthermore, step S200 also includes step S210, retrieving a standard cover sample and a defective cover sample based on the equipment inspection signal; step S220, performing an inspection on the automatic battery cover inspection equipment according to the standard cover sample to obtain a first inspection result; step S230, performing an inspection on the automatic battery cover inspection equipment according to the defective cover sample to obtain a second inspection result; and step S240, generating the equipment inspection result based on the first inspection result and the second inspection result.

[0031] Preferably, after receiving the equipment inspection signal, the system automatically retrieves the standard cover sample and the defective cover sample from the corresponding storage location. The standard cover sample is a battery cover that meets the quality standards and electrical performance indicators, representing the ideal product state. The defective cover sample is a battery cover with various known defects or that does not meet the electrical performance requirements, such as poor electrode connection, poor insulation performance, or abnormal resistance value. Then, the standard cover sample is placed into the automatic battery cover inspection equipment for inspection. The equipment tests the various electrical performance indicators of the standard sample according to the preset inspection program and parameters, such as measuring its resistance, voltage, current, etc., and checking its insulation performance and electrode connection. The obtained data is then compared with the standard values ​​of the standard sample to determine whether the equipment can accurately detect the various performance indicators of the standard sample and whether there are any deviations or errors. If the equipment test results match the standard values, it means that the equipment is testing the standard sample normally, and the corresponding test data and results are recorded, which is the first inspection result.

[0032] Preferably, the equipment is then inspected using a defective sample of the cover plate. The equipment tests the electrical performance of the defective sample. Since the defective sample has known defects, the equipment can detect these defects and give corresponding alarms or prompts. For example, if a certain electrode of the defective sample has a poor connection problem, the equipment should be able to detect abnormal resistance or poor current transmission of the electrode. By observing the equipment's test results on the defective sample, it is determined whether the equipment can accurately identify various defective states. The equipment's test data, alarm information, and whether it can correctly locate and describe the defects are recorded to form the second inspection result. Finally, the results of the first and second inspections are combined to generate the final equipment inspection results. If the equipment's inspection results on the standard sample cover are accurate and it can correctly identify various defects in the defective sample cover, the equipment is considered to be operating normally and passes the inspection. If the equipment deviates when inspecting the standard sample or cannot accurately identify certain defects in the defective sample, the possible problems with the equipment are analyzed according to the specific situation, such as sensor failure, detection algorithm error, unreasonable parameter settings, etc., and the problems are recorded in detail in the equipment inspection results. This allows for a more comprehensive and accurate evaluation of the performance and working status of the automatic battery cover inspection equipment, thereby ensuring that the inspection results of the battery pack cover are accurate and reliable.

[0033] Furthermore, step S220 also includes step S221, performing electrical performance testing on the standard sample of the battery cover using the automatic battery cover testing equipment to obtain standard sample testing data; step S222, comparing the standard sample testing benchmark data and the standard sample testing data to generate the equipment testing accuracy; and step S223, determining whether the equipment testing accuracy meets the testing accuracy constraint to generate the first inspection result.

[0034] Preferably, the automatic battery cover inspection equipment performs electrical performance testing on standard cover samples, acquiring standard sample test data, which may include, but is not limited to, voltage, current, resistance, capacitance, insulation resistance, etc. It compares the standard sample test baseline data with the standard sample test data, including calculating the difference or deviation rate for each electrical performance indicator, and then calculating the relative error between the test value and the baseline value to represent the equipment's inspection accuracy. The standard sample test baseline data is determined by high-precision measuring equipment and represents the true electrical performance of the standard sample, used to measure the equipment's inspection accuracy. It then determines whether the equipment's inspection accuracy meets the inspection accuracy constraints, which are accuracy thresholds set based on the battery cover's production quality requirements and inspection standards. If the equipment's inspection accuracy is within the constraints, it indicates that the equipment can accurately detect the electrical performance of the standard sample and meets the inspection requirements; conversely, if it exceeds the constraints, it indicates that the equipment's inspection accuracy has problems and may not meet the actual inspection needs. Finally, based on the judgment results, a first inspection result is generated.

[0035] Furthermore, step S200 also includes generating an equipment maintenance signal when the equipment inspection result is an inspection abnormality.

[0036] Preferably, if the equipment inspection result is abnormal, indicating that the equipment does not meet the requirements for normal operation, such as insufficient detection accuracy, component failure, or unstable performance, an equipment maintenance signal is automatically generated to notify the equipment maintenance personnel to perform maintenance, repair, and debugging, so as to ensure that the equipment can be restored to normal operation and ensure the accuracy and reliability of the automatic detection of the battery cover.

[0037] Step S300: Based on the equipment inspection results, control the automatic battery cover inspection equipment to perform multi-dimensional electrical performance testing on the battery pack cover to obtain the first sequence of cover inspection.

[0038] Step S300 further includes step S310, when the equipment inspection result is normal, performing a positive and negative electrode conformal high-voltage test on the battery pack cover using the automatic battery cover detection equipment to obtain cover conformal high-voltage test data; step S320, when the equipment inspection result is normal, performing a positive and negative electrode withstand voltage test on the battery pack cover using the automatic battery cover detection equipment to obtain cover withstand voltage test data; step S330, when the equipment inspection result is normal, performing an insulation resistance test on the battery pack cover using the automatic battery cover detection equipment to obtain cover resistance test data; step S340, when the equipment inspection result is normal, performing a flatness test on the battery pack cover using the automatic battery cover detection equipment to obtain cover flatness test data; step S350, constructing the cover detection first sequence based on the cover conformal high-voltage test data, the cover withstand voltage test data, the cover resistance test data, and the cover flatness test data.

[0039] Preferably, when the equipment inspection results are normal, an automatic battery cover testing device is used to perform a high-voltage conformal test on the battery pack cover. This simulates the high-voltage conditions that the battery may encounter in actual use. A specific conformal electrode is brought into contact with the positive and negative terminals of the battery cover, and a certain high voltage is applied. The testing device collects relevant electrical parameters during this process, such as current and voltage changes, forming high-voltage conformal test data. This data is mainly used to verify the electrical performance and safety of the battery cover under high-voltage conditions, ensuring that it can withstand the specified high voltage without breakdown or leakage. Similarly, under the premise that the equipment inspection is normal, a positive and negative electrode withstand voltage test is performed on the battery pack cover. This involves applying a certain voltage, but the focus is on detecting the maximum voltage the battery cover can withstand, and whether it can maintain good insulation performance and electrical stability under the specified voltage. The state of the cover at different voltage stages and related electrical data are recorded during the test to obtain the cover withstand voltage test data, which is used to evaluate whether the battery cover's withstand voltage capability meets the requirements.

[0040] Preferably, after the equipment inspection is normal, an insulation resistance test is performed. This involves using an insulation resistance testing instrument to detect the insulation performance of the battery pack cover, measuring the resistance between its positive and negative terminals and the outer casing or other non-conductive parts, acquiring and recording the resistance values ​​and related test conditions, and forming cover resistance test data. This ensures that the battery cover has good insulation performance, prevents leakage, and ensures the safety of battery use. Under normal equipment inspection conditions, an automatic battery cover inspection device is used to perform a flatness test on the battery pack cover. This typically uses laser measurement, optical measurement, etc., to scan or measure the surface of the cover, acquire the height information of each point on the cover surface, and calculate the flatness parameters of the cover through data analysis, i.e., the cover flatness test data. This ensures that the surface flatness of the battery cover meets production requirements, ensures that it can fit well with other battery components, and avoids assembly problems or affecting battery performance due to poor flatness. Finally, the high-voltage test data, withstand voltage test data, resistance test data, and flatness test data of the cover plate are integrated to generate the first sequence of cover plate inspection, which comprehensively reflects the quality status of the battery pack cover plate in terms of electrical performance, insulation performance, and physical dimensional accuracy, and can determine whether the battery pack cover plate meets the quality standards.

[0041] Step S400: Perform detection scene interference compensation on the first sequence of cover plate detection to obtain the second sequence of cover plate detection.

[0042] Step S400 further includes step S410, collecting detection scene parameters for the first sequence of cover plate detection to obtain quaternary detection scene data; step S420, performing anomaly detection based on the quaternary detection scene data to obtain quaternary scene anomaly detection results; step S430, identifying electrical performance detection interference based on the quaternary scene anomaly detection results to obtain quaternary scene anomaly interference factors; and step S441, performing mapping compensation on the first sequence of cover plate detection based on the quaternary scene anomaly interference factors to generate the second sequence of cover plate detection.

[0043] Preferably, the first sequence of cover plate inspection involves collecting inspection scene parameters, including equipment status information such as equipment operating parameters, sensor operating status, operating temperature, operating speed, and operating status of various equipment components, as well as environmental data such as ambient temperature, humidity, light intensity, and surrounding electromagnetic field strength during inspection, to reflect the actual situation during inspection. The collected equipment status and environmental data are then integrated to generate a dataset containing four dimensions of information (cover plate conformal high-voltage test, cover plate withstand voltage test, insulation resistance test, and cover plate flatness test), i.e., quaternary inspection scene data. Then, anomaly detection is performed on the quaternary inspection scene data to identify any abnormalities. Specifically, by comparing the data with preset normal data ranges or historical data, it is determined whether each test data is within a reasonable fluctuation range. The potential impact of equipment status and environmental data on the test results is also considered. If a data point deviates from the normal range, or the relationship between data does not conform to expectations, an anomaly is identified, thus obtaining the quaternary scene anomaly detection result, indicating which test data or scene parameters are abnormal, as well as the degree and type of the anomaly.

[0044] Preferably, interference identification for electrical performance testing is performed based on the anomaly detection results of the four-element scenario. Specifically, electrical performance testing (such as contour high-voltage testing, withstand voltage testing, and insulation resistance testing) is easily affected by environmental factors (such as electromagnetic interference, humidity, etc.) and equipment-related factors (such as equipment aging, component failure, etc.). Further analysis of the anomalies and interference factors in the electrical performance testing process is conducted to determine the specific interference factors, i.e., the four-element scenario anomaly interference factors. These may include the influence of environmental humidity on insulation resistance testing, electromagnetic interference on contour high-voltage testing, or a fault in a component of the equipment leading to abnormal withstand voltage test results. Then, based on the identified four-element scenario anomaly interference factors, the data in the first sequence of cover plate detection is processed. Mapping compensation is performed. For example, if ambient humidity affects the insulation resistance test data, the original insulation resistance test data is corrected based on the relationship between humidity and insulation resistance. If a fault in a component of the equipment causes abnormal high-voltage conformal test data, the test data is adjusted accordingly based on the equipment calibration data or historical experience. This eliminates or reduces the impact of interference factors on the test results, making the data more accurately reflect the actual performance of the battery pack cover. This results in a second sequence of cover testing, which can more accurately reflect the true quality status of the battery pack cover and more accurately determine whether the battery pack cover meets the quality standards and whether adjustments to the production process or testing equipment are needed.

[0045] Step S500: Input the second sequence of cover plate detection into the cover plate electrical performance detection model to obtain the first result of cover plate detection.

[0046] Step S500 further includes step S510, retrieving electrical performance testing benchmark samples based on the cover specifications and model of the battery pack cover to obtain a cover testing benchmark sequence; step S520, mapping and comparing the cover testing benchmark sequence with the cover testing second sequence to construct a cover testing quaternary comparison vector; step S530, inputting the cover testing quaternary comparison vector into the cover electrical performance testing model to generate the cover testing first result.

[0047] Preferably, battery pack covers of different specifications and models have different design requirements and performance standards. Based on the specific specifications and models of the battery pack cover to be tested, the electrical performance test benchmark samples are retrieved from the database. The database stores relevant information on various specifications and models of covers, including benchmark sample data for electrical performance testing. The benchmark sample data for electrical performance testing corresponding to the specified specifications and models is found to form a cover test benchmark sequence, which includes the standard or expected values ​​of various electrical performance test indicators of the battery pack cover of that specification and model under ideal conditions, such as the standard voltage value of the conformal high voltage test, the standard withstand time and voltage of the withstand voltage test, the standard resistance range of the insulation resistance, and the standard allowable error of the flatness, etc.

[0048] Preferably, a detailed comparison is made between the cover plate inspection benchmark sequence and the processed cover plate inspection second sequence. This includes comparing and analyzing the inspection data for each corresponding element in the two sequences, namely the conformal high-voltage test, withstand voltage test, insulation resistance test, and flatness test, and constructing a quaternary comparison vector of the comparison results, namely the cover plate inspection quaternary comparison vector. Each element represents the difference between the actual value and the benchmark value of the corresponding inspection item. For example, the first element in the vector represents the degree of deviation between the conformal high-voltage test data and the benchmark data, the second element represents a similar deviation in the withstand voltage test, and so on. Through the quaternary comparison vector, the differences between the battery pack cover plate and the standard requirements in various electrical performance test indicators can be comprehensively and intuitively reflected.

[0049] Preferably, the constructed cover plate detection quaternary comparison vector is used as the input data of the cover plate electrical performance detection model. Based on the analysis and processing of the input quaternary comparison vector, a comprehensive evaluation result of the battery pack cover plate electrical performance is obtained, which is the first result of the cover plate detection. This result may include specific evaluations of various detection indicators, hints of potential problems, and possible improvement measures. For example, if some elements in the quaternary comparison vector indicate that there is a large deviation between the detection data and the benchmark data, the model will identify that there are problems with the cover plate in the corresponding electrical performance and clearly point this out in the detection result. This process involves collecting a large amount of data related to the electrical performance testing of battery cover plates, including testing data for different specifications and models of cover plates, such as high-voltage conformal testing data, withstand voltage testing data, insulation resistance testing data, and flatness testing data. Simultaneously, information such as the corresponding cover plate specifications, equipment status, and environmental data is recorded. The collected data is labeled to determine whether the electrical performance of each sample's cover plate is qualified and whether there are specific types of anomalies. The labeled information serves as labels in supervised learning. The data is then preprocessed, including removing noise, duplicate data, and filling in missing values, followed by standardization to transform data with different features to the same scale. Then, features affecting the electrical performance testing results of the cover plates are extracted using Fourier transform and other methods. A prediction model is built based on machine learning models (such as decision trees, support vector machines, and artificial neural networks). The preprocessed data is divided into training and validation sets. The training set is used for training, and the test set is used for evaluation to obtain the cover plate electrical performance testing model, which can analyze and judge the electrical performance status of battery pack cover plates based on the input comparison vector.

[0050] Step S600: Perform misjudgment suppression verification based on the first result of cover plate detection to obtain the second result of cover plate detection, and perform dual-belt adaptive transmission on the battery pack cover plate based on the second result of cover plate detection.

[0051] Preferably, the detection process may be affected by various factors, leading to the possibility of misjudgment in the first result of the cover plate detection. To suppress and verify the misjudgment of the first result of the cover plate detection, for example, statistical analysis can be used to analyze a large amount of detection data, establish a distribution model of normal and abnormal samples, and determine whether the first result is likely to be misjudged based on its position in the model; ensemble learning can be used to combine multiple different detection models for comprehensive judgment to avoid misjudgment that may occur with a single model; and monitoring results that do not conform to common sense can also be corrected based on historical experience data to obtain the second result of the cover plate detection, which can more realistically reflect the actual situation of the battery pack cover plate. Then, based on the second result of the cover inspection, the conveying of the battery pack cover is controlled, including dual-belt adaptive conveying. That is, two conveyor belts are used to convey the cover, and the speed, position, and other parameters of the conveyor belts can be adaptively adjusted according to the cover inspection results. Specifically, if the inspection result shows that the cover is qualified, it is conveyed to the next production stage at normal speed; if the inspection result shows that the cover has some minor problems, the speed is reduced to allow for more careful inspection or marking of the cover; and if the cover is determined to be unqualified, it is conveyed to a specific area for isolation or scrapping. This enables the classification and processing of battery pack covers with different quality conditions, improves production efficiency and product quality, and also helps to realize the automation and intelligence of the production process.

[0052] Furthermore, step S600 also includes step S610, collecting detection operation parameters based on the first result of the cover plate detection to obtain quaternary detection operation data; step S620, performing deviation detection based on the quaternary detection operation data to determine the electrical performance detection deviation factor; step S630, controlling the automatic battery cover plate detection device to perform compensation detection on the battery pack cover plate based on the electrical performance detection deviation factor to obtain cover plate compensation detection data; step S640, correcting the second cover plate detection sequence based on the cover plate compensation detection data to obtain a third cover plate detection sequence; and step S650, inputting the third cover plate detection sequence into the cover plate electrical performance detection model to obtain the second result of the cover plate detection.

[0053] Preferably, the detection operation parameters are collected from the first result of the cover plate detection. These parameters may include the operating parameters of the detection equipment (such as voltage, current, test time, etc.), environmental parameters during the detection process (such as temperature, humidity, etc.), and parameters related to the battery pack cover plate (such as the size and material of the cover plate). The collected parameters are organized into quaternary detection operation data. Deviation detection is then performed based on the quaternary detection operation data, including comparing and analyzing the quaternary detection operation data with preset standard parameters to check for deviations. That is, it is determined whether the data of each dimension exceeds the normal fluctuation range and the degree of deviation, thereby determining the electrical performance detection deviation factor. This factor reflects the overall degree of deviation of the electrical performance detection operation parameters and is used to quantify the difference between the detection operation parameters and the standard state.

[0054] Preferably, based on the electrical performance test deviation factor, the automatic battery cover testing equipment is controlled to perform compensatory testing on the battery pack cover. Specifically, the electrical performance test deviation factor is analyzed to determine the potentially problematic aspects and severity of the testing process, and then a corresponding compensatory testing strategy is formulated. This may include adding testing items (if the deviation factor indicates that the result of a certain testing item may be inaccurate, such as a large deviation in the flatness test parameters, additional flatness test points may be added), changing testing parameters (such as adjusting the voltage value of the withstand voltage test to the correct value and re-performing the withstand voltage test if the voltage value deviates from the standard, or appropriately increasing the testing time or number of tests based on the magnitude of the deviation factor to obtain more accurate results), or repeating certain testing steps (when the deviation factor indicates that a certain testing step may be abnormal, the testing step is repeated, such as if the insulation resistance test result deviates due to a brief interference from the testing equipment, the insulation resistance test needs to be performed again after eliminating the interference), etc. Then, based on the determined compensatory testing strategy, the automatic battery cover testing equipment is controlled to perform corresponding operations to test the battery cover assembly and record the cover compensation testing data.

[0055] Preferably, the cover plate compensation detection data is integrated into the cover plate detection second sequence, updated and corrected to obtain the cover plate detection third sequence, which can more accurately reflect the actual electrical performance of the battery pack cover plate. Finally, the cover plate detection third sequence is used as input data and processed in the cover plate electrical performance detection model, and the cover plate detection second result is output, which can more realistically reflect the electrical performance quality of the battery pack cover plate.

[0056] Furthermore, step S620 also includes step S621, performing deviation identification based on the quaternary detection operation data to obtain a quaternary operation deviation identification result; step S622, evaluating the impact of the cover plate detection first result based on the quaternary operation deviation identification result to obtain a quaternary operation deviation impact coefficient; step S623, determining whether the quaternary operation deviation impact coefficient is greater than or equal to the operation deviation impact threshold to obtain a quaternary deviation impact judgment result; and step S624, mapping the multidimensional electrical performance detection factor based on the quaternary deviation impact judgment result to generate the electrical performance detection deviation factor.

[0057] Preferably, the quaternary detection operation data is compared and analyzed with pre-set standard parameters. For each dimension, it is determined whether the data deviates from the normal state. For example, deviations in voltage, current, test time, and flatness values ​​are identified for the detection operation parameters of positive and negative electrode conformal high-voltage test, positive and negative electrode withstand voltage test, insulation resistance test, and flatness test, respectively. Quaternary operation deviation identification results are obtained, corresponding to the deviation status of the four detection dimensions, such as slight deviation, moderate deviation, and severe deviation. Then, based on the quaternary operation deviation identification results, the impact of each dimension's deviation on the first result of the cover plate detection is evaluated. This includes quantifying the correlation between each detection dimension and the final detection result, as well as the severity of the deviation, to obtain the quaternary operation deviation influence coefficient. This coefficient corresponds to the influence coefficient of different detection dimensions and is used to represent the relative influence of each dimension's deviation on the first result of the cover plate detection. The closer the coefficient is to 1, the greater the impact of the deviation on the detection result; the closer the coefficient is to 0, the smaller the impact.

[0058] Preferably, it is determined whether the quaternary operation deviation influence coefficient is greater than or equal to the operation deviation influence threshold. The operation deviation influence threshold is a threshold set for the operation deviation influence coefficient of each dimension, used to determine whether the deviation of that dimension reaches a level that needs attention, thereby obtaining the quaternary deviation influence judgment result. Each element corresponds to a detection dimension, indicating whether the operation deviation influence coefficient of that dimension is greater than or equal to the threshold. Finally, based on the quaternary deviation influence judgment result, the multi-dimensional electrical performance detection factors such as positive and negative electrode conformal high voltage test, positive and negative electrode withstand voltage test, insulation resistance test, and flatness test are comprehensively considered and mapped. If the deviation influence coefficient of a certain dimension is greater than or equal to the threshold, it indicates that the detection result of that dimension may have a significant impact on the overall electrical performance detection, thereby obtaining a factor that can comprehensively reflect the deviation situation in the entire electrical performance detection process, namely the electrical performance detection deviation factor, used to quantify the degree of deviation between the electrical performance detection result and the ideal state.

[0059] In the above text, refer to Figure 1 A method for testing the electrical performance of a battery pack cover according to an embodiment of the present invention is described in detail. Next, reference will be made to... Figure 2A battery pack cover plate electrical performance testing system is described according to an embodiment of the present invention.

[0060] An electrical performance testing system for a battery pack cover according to an embodiment of the present invention addresses the technical problems in the prior art, such as the difficulty in comprehensively evaluating the electrical performance of the cover during battery testing, the susceptibility of test results to environmental interference, resulting in poor efficiency, accuracy, and reliability of electrical performance testing, and a high false positive rate. The system achieves the technical effect of improving the efficiency, accuracy, and reliability of battery cover electrical performance testing and reducing the false positive rate. Figure 2 As shown, an electrical performance testing system for a battery pack cover includes: an inspection signal generation module 10, an inspection result generation module 20, an electrical performance testing module 30, an interference compensation module 40, a first detection result acquisition module 50, and a second detection result acquisition module 60.

[0061] The inspection signal generation module 10 generates an equipment inspection signal when the suction cup picks up the battery pack cover to the inspection station; the inspection result generation module 20 performs an inspection on the automatic battery cover inspection equipment based on the equipment inspection signal and generates an equipment inspection result; the electrical performance detection module 30 controls the automatic battery cover inspection equipment to perform multi-dimensional electrical performance detection on the battery pack cover based on the equipment inspection result and obtains a first sequence of cover detection; the interference compensation module 40 performs detection scene interference compensation on the first sequence of cover detection and obtains a second sequence of cover detection; the first detection result acquisition module 50 inputs the second sequence of cover detection into the cover electrical performance detection model and obtains a first result of cover detection; the second detection result acquisition module 60 performs misjudgment suppression verification based on the first result of cover detection, obtains a second result of cover detection, and performs dual-band adaptive transmission of the battery pack cover based on the second result of cover detection.

[0062] The specific configuration of the electrical performance testing module 30 will be described in detail below. The electrical performance testing module 30 further includes: when the equipment inspection result is normal, performing a positive and negative electrode conformal high-voltage test on the battery pack cover using the automatic battery cover testing equipment to obtain cover conformal high-voltage test data; when the equipment inspection result is normal, performing a positive and negative electrode withstand voltage test on the battery pack cover using the automatic battery cover testing equipment to obtain cover withstand voltage test data; when the equipment inspection result is normal, performing an insulation resistance test on the battery pack cover using the automatic battery cover testing equipment to obtain cover resistance test data; when the equipment inspection result is normal, performing a flatness test on the battery pack cover using the automatic battery cover testing equipment to obtain cover flatness test data; and constructing the cover detection first sequence based on the cover conformal high-voltage test data, the cover withstand voltage test data, the cover resistance test data, and the cover flatness test data.

[0063] The specific configuration of the interference compensation module 40 will be described in detail below. The interference compensation module 40 further includes: acquiring detection scene parameters for the first cover plate detection sequence to obtain quaternary detection scene data; performing anomaly detection based on the quaternary detection scene data to obtain quaternary scene anomaly detection results; identifying electrical performance detection interference based on the quaternary scene anomaly detection results to obtain a quaternary scene anomaly interference factor; and performing mapping compensation on the first cover plate detection sequence based on the quaternary scene anomaly interference factor to generate the second cover plate detection sequence.

[0064] The specific configuration of the first detection result acquisition module 50 will be described in detail below. The first detection result acquisition module 50 further includes: retrieving electrical performance test benchmark samples based on the cover specifications and model of the battery pack cover to obtain a cover test benchmark sequence; mapping and comparing the cover test benchmark sequence with the cover test second sequence to construct a cover test quaternary comparison vector; and inputting the cover test quaternary comparison vector into the cover electrical performance test model to generate the first detection result of the cover.

[0065] The specific configuration of the second detection result acquisition module 60 will be described in detail below. The second detection result acquisition module 60 further includes: acquiring detection operation parameters based on the first cover plate detection result to obtain quaternary detection operation data; performing deviation detection based on the quaternary detection operation data to determine an electrical performance detection deviation factor; controlling the automatic battery cover plate detection device to perform compensation detection on the battery pack cover plate based on the electrical performance detection deviation factor to obtain cover plate compensation detection data; correcting the second cover plate detection sequence based on the cover plate compensation detection data to obtain a third cover plate detection sequence; and inputting the third cover plate detection sequence into the cover plate electrical performance detection model to obtain the second cover plate detection result.

[0066] The specific configuration of the second detection result acquisition module 60 will be described in detail below. The second detection result acquisition module 60 further includes: performing deviation identification based on the quaternary detection operation data to obtain a quaternary operation deviation identification result; evaluating the impact of the cover plate detection first result based on the quaternary operation deviation identification result to obtain a quaternary operation deviation influence coefficient; determining whether the quaternary operation deviation influence coefficient is greater than or equal to the operation deviation influence threshold to obtain a quaternary deviation influence judgment result; and mapping the multidimensional electrical performance detection factors based on the quaternary deviation influence judgment result to generate the electrical performance detection deviation factor.

[0067] The specific configuration of the inspection result generation module 20 will be described in detail below. The inspection result generation module 20 further includes: retrieving a standard cover sample and a defective cover sample based on the equipment inspection signal; performing an inspection on the automatic battery cover inspection equipment according to the standard cover sample to obtain a first inspection result; performing an inspection on the automatic battery cover inspection equipment according to the defective cover sample to obtain a second inspection result; and generating the equipment inspection result based on the first inspection result and the second inspection result.

[0068] The specific configuration of the inspection result generation module 20 will be described in detail below. The inspection result generation module 20 further includes: performing electrical performance testing on the standard sample of the battery cover using the automatic inspection equipment to obtain standard sample test data; comparing the standard sample test benchmark data and the standard sample test data to generate the equipment test accuracy; determining whether the equipment test accuracy meets the test accuracy constraint, and generating the first inspection result.

[0069] The specific configuration of the inspection result generation module 20 will be described in detail below. The inspection result generation module 20 further includes: generating an equipment maintenance signal when the equipment inspection result is an inspection anomaly.

[0070] The electrical performance testing system for a battery pack cover provided in this embodiment of the invention can execute the electrical performance testing method for a battery pack cover provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0071] Although this application makes various references to certain modules in the system according to the embodiments of this application, any number of different modules can be used and run on user terminals and / or servers. The various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy distinction between each other and are not used to limit the scope of protection of this invention.

[0072] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A method of detecting electrical performance of a battery assembly cover plate, the method comprising: applying a voltage to the battery assembly cover plate; and measuring a current through the battery assembly cover plate. The method comprises: generating a device inspection signal when the suction cup grabs the battery combination cover plate to the detection station; based on the device inspection signal, the battery cover plate automatic detection equipment is inspected, and a device inspection result is generated; based on the device inspection result, the battery cover plate automatic detection equipment is controlled to perform multi-dimensional electrical performance detection on the battery combination cover plate, and a cover plate detection first sequence is obtained; compensate for the detection scene interference of the cover plate detection first sequence to obtain a cover plate detection second sequence; input the cover plate detection second sequence into a cover plate electrical performance detection model to obtain a cover plate detection first result; According to the cover plate detection first result, the false judgment suppression verification is carried out, the cover plate detection second result is obtained, and the double-belt self-adaptive conveying of the battery combination cover plate is carried out according to the cover plate detection second result.

2. The method for testing the electrical performance of a battery pack cover as described in claim 1, characterized in that, Based on the device inspection result, the battery cover plate automatic detection equipment is controlled to perform multi-dimensional electrical performance detection on the battery combination cover plate, and a cover plate detection first sequence is obtained, comprising: when the device inspection result is inspection normal, according to the battery cover plate automatic detection equipment, the battery combination cover plate is subjected to positive and negative electrode profiling high voltage test, and cover plate profiling high voltage test data are obtained; when the device inspection result is inspection normal, according to the battery cover plate automatic detection equipment, the battery combination cover plate is subjected to positive and negative electrode voltage resistance test, and cover plate voltage resistance test data are obtained; when the device inspection result is inspection normal, according to the battery cover plate automatic detection equipment, the battery combination cover plate is subjected to insulation resistance test, and cover plate resistance test data are obtained; when the device inspection result is inspection normal, according to the battery cover plate automatic detection equipment, the battery combination cover plate is subjected to flatness test, and cover plate flatness test data are obtained; According to the cover plate profiling high voltage test data, the cover plate voltage resistance test data, the cover plate resistance test data and the cover plate flatness test data, the cover plate detection first sequence is constructed.

3. The method for testing the electrical performance of a battery pack cover as described in claim 1, characterized in that, Compensate for the detection scene interference of the cover plate detection first sequence to obtain a cover plate detection second sequence, comprising: detecting scene parameter acquisition is performed on the cover plate detection first sequence to obtain four-dimensional detection scene data; According to the four-dimensional detection scene data, abnormal detection is carried out, and four-dimensional scene abnormal detection result is obtained; According to the four-dimensional scene abnormal detection result, the electrical performance detection interference is identified, and the four-dimensional scene abnormal interference factor is obtained; According to the four-dimensional scene abnormal interference factor, the cover plate detection first sequence is mapped and compensated to generate the cover plate detection second sequence; The collected device state and environment data are integrated to generate a data set containing four-dimensional information, i.e. four-dimensional detection scene data, wherein the four-dimensional information includes cover plate profiling high voltage test, cover plate voltage resistance test, insulation resistance test and cover plate flatness test.

4. The method for testing the electrical performance of a battery pack cover as described in claim 1, characterized in that, According to the cover plate detection first result, the false judgment suppression verification is carried out, the cover plate detection second result is obtained, and the double-belt self-adaptive conveying of the battery combination cover plate is carried out according to the cover plate detection second result. According to the cover plate detection first result, the false judgment suppression verification is carried out, the cover plate detection second result is obtained, and the double-belt self-adaptive conveying of the battery combination cover plate is carried out according to the cover plate detection second result. According to the cover plate detection first result, the false judgment suppression verification is carried out, the cover plate detection second result is obtained, and the double-belt self-adaptive conveying of the battery combination cover plate is carried out according to the cover plate detection second result. According to the cover plate detection first result, the false judgment suppression verification is carried out, the cover plate detection second result is obtained, and the double-belt self-adaptive conveying of the battery combination cover plate is carried out according to the cover plate detection second result. mapping and aligning the cover detection reference sequence with the cover detection second sequence to construct a cover detection four-element alignment vector; inputting the cover detection four-element alignment vector into the cover electrical performance detection model to generate the cover detection first result; comparing and analyzing detection data of profiling high-voltage test, voltage withstand test, insulation resistance test and flatness test to construct a four-element alignment vector, i.e. the cover detection four-element alignment vector.

5. The method for testing the electrical performance of a battery pack cover as described in claim 1, characterized in that, performing false judgment suppression verification according to the cover detection first result to obtain a cover detection second result, including: collecting detection operation parameters according to the cover detection first result to obtain four-element detection operation data; performing deviation detection according to the four-element detection operation data to determine an electrical performance detection deviation factor; controlling the battery cover automatic detection equipment to perform compensation detection on the battery combination cover according to the electrical performance detection deviation factor to obtain cover compensation detection data; correcting the cover detection second sequence according to the cover compensation detection data to obtain a cover detection third sequence; inputting the cover detection third sequence into the cover electrical performance detection model to obtain the cover detection second result; collecting detection operation parameters from the cover detection first result, including operation parameters of detection equipment, environmental parameters in the detection process and parameters related to the battery combination cover, and arranging the collected parameters into four-element detection operation data.

6. The method of claim 5, wherein the step of detecting the electrical performance of the battery assembly cover plate comprises the step of: performing deviation detection according to the four-element detection operation data to determine an electrical performance detection deviation factor, including: ​ performing deviation identification according to the four-element detection operation data to obtain a four-element operation deviation identification result; performing influence evaluation on the cover detection first result according to the four-element operation deviation identification result to obtain a four-element operation deviation influence coefficient; judging whether the four-element operation deviation influence coefficient is greater than or equal to an operation deviation influence threshold to obtain a four-element deviation influence judgment result; mapping a multi-dimensional electrical performance detection factor according to the four-element deviation influence judgment result to generate the electrical performance detection deviation factor.

7. The method of claim 1, wherein the battery assembly cover plate is made of a conductive material. performing point inspection on the battery cover automatic detection equipment based on the equipment point inspection signal to generate an equipment point inspection result, including: ​ based on the equipment point inspection signal, calling a cover standard sample and a cover bad sample; performing point inspection on the battery cover automatic detection equipment according to the cover standard sample to obtain a first point inspection result; performing point inspection on the battery cover automatic detection equipment according to the cover bad sample to obtain a second point inspection result; generating the equipment point inspection result according to the first point inspection result and the second point inspection result.

8. The method of claim 7, wherein the battery assembly cover plate is made of a conductive material. performing point inspection on the battery cover automatic detection equipment according to the cover standard sample to obtain a first point inspection result, including: ​ performing electrical performance detection on the cover standard sample according to the battery cover automatic detection equipment to obtain standard sample detection data; comparing standard sample detection reference data with the standard sample detection data to generate equipment detection accuracy; judging whether the equipment detection accuracy meets detection accuracy constraints to generate the first point inspection result.

9. The method for testing the electrical performance of a battery pack cover as described in claim 1, characterized in that, generating an equipment operation and maintenance signal when the equipment point inspection result is point inspection abnormality.

10. A battery pack cover plate electrical performance testing system, characterized in that, The system is used for implementing the method for detecting the electrical performance of the battery combination cover plate according to any one of claims 1 to 9, and the system comprises: a point inspection signal generation module, configured to generate a device point inspection signal when the suction cup grasps the battery combination cover plate to the detection station; a point inspection result generation module, configured to perform point inspection on the battery cover plate automatic detection device based on the device point inspection signal, and generate a device point inspection result; an electrical performance detection module, configured to control the battery cover plate automatic detection device to perform multi-dimensional electrical performance detection on the battery combination cover plate based on the device point inspection result, and obtain a cover plate detection first sequence; an interference compensation module, configured to perform detection scene interference compensation on the cover plate detection first sequence, and obtain a cover plate detection second sequence; a detection first result obtaining module, configured to input the cover plate detection second sequence into a cover plate electrical performance detection model, and obtain a cover plate detection first result; a detection second result obtaining module, configured to perform false judgment suppression verification according to the cover plate detection first result, obtain a cover plate detection second result, and perform double-belt adaptive conveying on the battery combination cover plate according to the cover plate detection second result.

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