Anti-static detection method for new energy automobile part production
By conducting electrostatic discharge testing and evaluation calculations in the production of new energy vehicle parts, combined with the influence of temperature, a closed-loop evaluation system is formed, which solves the problem of inaccurate evaluation in existing technologies and achieves comprehensive, accurate evaluation and continuous optimization of anti-static performance.
Patent Information
- Application Number
- CN202510829671.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2025-09-05
AI Technical Summary
In the production of new energy vehicle parts, existing technologies lack an evaluation method that comprehensively considers the effects of electrostatic discharge energy, anti-static performance, and temperature, resulting in inaccurate evaluation results and the inability to form closed-loop optimization.
The electrostatic discharge detection module is used to perform electrostatic discharge tests at different temperatures. The evaluation calculation module is combined to calculate the electrostatic discharge energy, anti-static performance index and comprehensive anti-static efficiency evaluation value. A closed-loop evaluation system is formed through data comparison and ranking analysis.
It achieves a comprehensive evaluation of new energy vehicle components at different temperatures, improves the accuracy and applicability of the evaluation results, and can continuously optimize the anti-static performance to ensure product reliability and safety.
Smart Images
Figure CN120594986A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of anti-static detection for automobile parts production, and in particular to an anti-static detection method for new energy automobile parts production. Background Art
[0002] New energy vehicle components, especially automotive electronic components, are extremely sensitive to static electricity. Even a small amount of static electricity discharge can damage components, leading to huge economic losses and product quality problems. Therefore, in the production process of new energy vehicle components, effective anti-static measures must be taken and strict anti-static testing must be carried out to ensure product reliability and safety. Among them, electrostatic discharge testing is one of the key methods for testing ESD products. It usually uses two electrodes, one connected to a high voltage source and the other connected to the ground or equipment, and simulates electrostatic discharge by creating a short discharge to check the stability of the test product.
[0003] However, existing technologies often only use a single electrostatic discharge voltage and resistance value as evaluation indicators, which cannot fully reflect the anti-static performance of components at different temperatures. In testing, temperature is one of the important factors affecting anti-static performance, but existing technologies often ignore this point, resulting in inaccurate evaluation results. In addition, existing technologies lack an evaluation method that can comprehensively consider electrostatic discharge energy, anti-static performance, and comprehensively reflect anti-static effectiveness. In addition, the evaluation methods in existing technologies are often one-time and cannot form a closed-loop evaluation system, and cannot continuously optimize the anti-static performance based on the evaluation results. Summary of the Invention
[0004] The purpose of the present invention is to provide an anti-static detection method for the production of new energy vehicle parts, which solves the problems raised in the above background technology.
[0005] To achieve the above objectives, the present invention provides the following technical solutions, and the specific steps for implementing the detection method are as follows: Step 1: Using an electrostatic discharge detection module, perform electrostatic discharge tests on the current component at different temperatures and collect the detection status; Step II: Using the evaluation calculation module, first calculate the output electrostatic discharge energy evaluation value FN, the anti-static performance index FX, and the comprehensive anti-static performance evaluation value FZ in sequence; The evaluation and calculation module includes a unit for evaluating the energy generated by electrostatic discharge at different ambient temperatures, a unit for comprehensively evaluating the anti-static performance of new energy vehicle parts, a unit for evaluating the comprehensive anti-static efficiency under different working conditions, and a data comparison and ranking analysis unit. Step III: Based on the comprehensive anti-static performance evaluation value FZ, the data comparison and ranking analysis unit is used to rank and evaluate the comprehensive anti-static performance evaluation values FZ output at different temperatures, and the ranking evaluation value FZ is also compared with the ranking evaluation of the previous component in the same batch; The equipment used in the electrostatic discharge detection module includes an electrostatic discharge generator, a capacitance meter, a thermometer, a resistance meter, and a voltage measuring device; The equipment used by the evaluation and calculation module includes a data recording and processing system.
[0006] Optionally, the calculation formula for evaluating the energy size unit generated by electrostatic discharge at different ambient temperatures is as follows: FN=SQRT(FDY 2 ×DR)-HW×K; in: FN is the electrostatic discharge energy assessment value; FDY is the electrostatic discharge voltage; DR is the capacitance of the device under test; HW is the ambient temperature; K is the temperature influence coefficient.
[0007] Optionally, the temperature influence coefficient K represents the degree of influence of temperature on electrostatic discharge energy. Assuming that there is a linear relationship between electrostatic discharge energy and temperature, the linear relationship between electrostatic discharge energy and temperature is calculated as follows: FN old =a×HW+b; FN old FN is the electrostatic discharge energy evaluation value of the previous component. old Reflects the electrostatic discharge energy assessment value FN calculated for the previous component in the same batch at the same test temperature as the current component; a is a factor related to capacitance and voltage, that is, the approximate value of the temperature influence coefficient K; b is a constant constant term; FN old =a×HW+b and solve the equation to calculate the temperature influence coefficient K.
[0008] Optionally, the calculation formula for the comprehensive evaluation of the anti-static performance unit of new energy vehicle parts is as follows: ; in: FX is the antistatic performance index; SW is the operating temperature of the device; SW max The upper limit of the device's operating temperature; DZ is the anti-static resistance, and DZ indicates the anti-static performance of the equipment; DYH is the anti-static performance threshold voltage; DY is the current measured anti-static voltage.
[0009] Optionally, the calculation formula for evaluating the comprehensive anti-static performance unit under different working conditions is as follows: ; in: FZ is the comprehensive anti-static performance evaluation value; FX prev The last time the anti-static performance index was measured, FX prev Reflects the anti-static performance index FX calculated from the last measurement of the current component at different temperatures; WF is the temperature range, which represents the maximum difference between the equipment operating temperature SW and the ambient temperature HW; DZ prev For the last measurement of anti-static resistance, DZ prev Reflects the anti-static resistance DZ of the current component under the last different temperature measurements.
[0010] Optionally, based on the comprehensive anti-static performance evaluation value FZ, and after all the comprehensive anti-static performance evaluation values FZ of the current component measured at different temperatures are calculated and output, all the comprehensive anti-static performance evaluation values FZ of the current component are ranked and evaluated, specifically as follows: FZ1>FZ2>FZ4>......>FZN; FZ1 is the comprehensive anti-static performance evaluation value at the first measurement temperature, FZ2 is the comprehensive anti-static performance evaluation value at the second measurement temperature, FZ4 is the comprehensive anti-static performance evaluation value at the fourth measurement temperature, and FZN is the comprehensive anti-static performance evaluation value at the Nth measurement temperature; Based on this ranking, the anti-static performance of the current components is evaluated under simulated working conditions and different temperatures.
[0011] Optionally, based on the ranking evaluation of all comprehensive anti-static performance evaluation values FZ of the current component, and combined with the calculated and output ranking evaluation of the previous component in the same batch for comparison, the specific detection analysis is as follows: If the ranking evaluation of the current component is consistent with that of the previous component in the same batch, that is, the ranking of the previous component in the same batch is FZ1>FZ2>FZ4>......>FZN, it indicates that the anti-static performance of the components in this batch is stable and reliable, is less affected by temperature, and has high quality and consistency. You should continue to test the next component in the same batch; If the ranking evaluation of the current component is inconsistent with that of the previous component in the same batch, that is, there is a deviation between the ranking of the previous component in the same batch and the ranking of FZ1>FZ2>FZ4>......>FZN, it indicates that there are process fluctuations and errors in the production process. The quality control of raw materials should be strengthened, and the current component should be inspected again.
[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention comprehensively evaluates the electrostatic discharge energy, anti-static performance and comprehensive anti-static effectiveness of components at different temperatures by evaluating the electrostatic discharge energy size unit at different ambient temperatures, comprehensively evaluating the anti-static performance unit of new energy vehicle components, and evaluating the comprehensive anti-static effectiveness unit at different working states. It can comprehensively evaluate the electrostatic discharge energy, anti-static performance and comprehensive anti-static effectiveness of components at different temperatures, thereby more accurately reflecting the anti-static performance of components. Among them, the unit for evaluating the electrostatic discharge energy size at different ambient temperatures takes into account the electrostatic discharge voltage FDY, device capacitance, ambient temperature HW and temperature influence coefficient K, and can calculate the electrostatic discharge energy at different temperatures. The unit for comprehensively evaluating the anti-static performance of new energy vehicle components combines the anti-static resistance DZ, electrostatic discharge energy, device operating temperature SW, and device operating temperature upper limit SW. max The anti-static performance can be calculated by combining the anti-static performance threshold voltage DYH and the actually measured anti-static voltage. The comprehensive anti-static performance evaluation unit under different working conditions can calculate the comprehensive anti-static performance by comparing the anti-static performance measured last and currently, and considering the temperature range WF and the anti-static resistance change. The present invention integrates multiple evaluation indicators through the mathematical methods of addition, subtraction, multiplication, division and square root operations to form a complete evaluation system.
[0013] 2. The present invention introduces the temperature influence coefficient K and temperature range WF parameters into the unit for evaluating the energy size generated by electrostatic discharge at different ambient temperatures and the unit for comprehensively evaluating the anti-static performance of new energy vehicle parts, thereby fully considering the influence of temperature on anti-static performance and making the evaluation results more accurate.
[0014] 3. The present invention forms a closed-loop evaluation system by evaluating the comprehensive anti-static performance evaluation value FZ in the comprehensive anti-static performance unit under different working conditions and the ranking analysis of the data comparison and ranking analysis unit. It can not only rank and evaluate the comprehensive anti-static performance evaluation value FZ of the current component at different temperatures, but also combine the ranking evaluation of the previous component in the same batch to observe and evaluate the stability of the detection performance of the same batch. When the evaluation result is not ideal, the anti-static performance can be continuously optimized according to the evaluation result, thereby improving the anti-static performance of the component. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1This is a flow chart of the anti-static testing method for the production of new energy vehicle parts; Figure 2 This is a schematic diagram of the structure of the evaluation calculation module of the present invention; Figure 3 Schematic diagram of the structure of the detection and analysis of the present invention. DETAILED DESCRIPTION
[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0017] This anti-static detection method for the production of new energy vehicle parts is different from existing anti-static detection methods. Existing anti-static detection methods often only focus on a single electrostatic discharge voltage and resistance value, while ignoring the impact of temperature on anti-static performance. In addition, the correlation between parts in the same batch is not high. Its evaluation method is often one-time and cannot form a closed-loop evaluation system. It is impossible to continuously optimize the anti-static performance based on the evaluation results. This algorithm unit helps to quantify the hazards of electrostatic discharge, comprehensively evaluate anti-static performance, and reflect the dynamic changes in anti-static effectiveness, providing strong support for the production and maintenance of new energy vehicle parts.
[0018] For example 1, please refer to Figures 1 to 3 This embodiment provides an anti-static detection method for the production of new energy vehicle parts. The specific steps of implementing the detection method are as follows: Step 1: Using an electrostatic discharge detection module, perform electrostatic discharge tests on the current component at different temperatures and collect the detection status; Step II: Using the evaluation calculation module, first calculate the output electrostatic discharge energy evaluation value FN, the anti-static performance index FX, and the comprehensive anti-static performance evaluation value FZ in sequence; The evaluation and calculation module includes a unit for evaluating the energy generated by electrostatic discharge at different ambient temperatures, a unit for comprehensively evaluating the anti-static performance of new energy vehicle parts, a unit for evaluating the comprehensive anti-static efficiency under different working conditions, and a unit for data comparison and ranking analysis. Step III: Based on the comprehensive anti-static performance evaluation value FZ, the data comparison and ranking analysis unit is used to rank and evaluate the comprehensive anti-static performance evaluation values FZ output at different temperatures. The ranking evaluations of the components in the same batch must also be compared and analyzed. The equipment used in the electrostatic discharge detection module includes an electrostatic discharge generator, a capacitance meter, a thermometer, a resistance meter, and a voltage measuring device; The equipment used in the evaluation calculation module includes a data recording and processing system.
[0019] In this embodiment, the system cooperates with the three algorithm units and combines the three operation results of FN, FX and FZ to form an algorithm system of anti-static detection method for new energy vehicle parts production based on electrostatic discharge test and temperature influence. Specifically, FN is the electrostatic discharge energy evaluation value, which evaluates the energy generated by electrostatic discharge under a specific ambient temperature HW, and this energy value is crucial for understanding the potential harm of electrostatic discharge to new energy vehicle parts. FX is the anti-static performance index. The purpose of calculating this evaluation value is to comprehensively evaluate the anti-static performance of new energy vehicle parts, which in turn helps to discover potential performance shortcomings and provide a basis for subsequent improvements. FZ is the comprehensive anti-static efficiency evaluation value. The purpose of calculating this evaluation value is to evaluate the performance of new energy vehicles. The system can measure the comprehensive anti-static performance of new energy vehicle parts under different working conditions and temperatures, and timely discover and solve anti-static performance problems according to the changes in the comprehensive anti-static performance evaluation value FZ, providing a basis for equipment maintenance and improvement. The calculation results of FZ calculated and output at different temperatures can also affect the calculation of FN, FX and FZ of the next part in the same batch, so that the three algorithms of this system each have significant beneficial effects in the anti-static detection method for new energy vehicle parts production. The cyclic influence of FZ on FN, FX and FZ of the next part in the same batch further improves the accuracy and applicability of the entire detection method. This closed-loop evaluation system helps to ensure that the anti-static performance of new energy vehicle parts meets the design requirements and improve the reliability and safety of the product.
[0020] See also Figures 1 to 3 The calculation formula for evaluating the energy size unit generated by electrostatic discharge at different ambient temperatures is as follows: FN=SQRT(FDY 2 ×DR)-HW×K; in: FN is the electrostatic discharge energy assessment value; FDY is the electrostatic discharge voltage; DR is the capacitance of the device under test; HW is the ambient temperature; K is the temperature influence coefficient; The temperature influence coefficient K indicates the degree of influence of temperature on electrostatic discharge energy. Assuming that there is a linear relationship between electrostatic discharge energy and temperature, the linear relationship calculation formula between electrostatic discharge energy and temperature is as follows: FN old =a×HW+b; FN old FN is the electrostatic discharge energy evaluation value of the previous component. old Reflects the electrostatic discharge energy assessment value FN calculated for the previous component in the same batch at the same test temperature as the current component; a is a factor related to capacitance and voltage, that is, the approximate value of the temperature influence coefficient K; b is a constant term; FN old =a×HW+b and solve the equation to calculate the temperature influence coefficient K.
[0021] In this embodiment, the "HW×K" calculation portion of this algorithm unit is intended to quantify the impact of ambient temperature HW on ESD energy. Since ESD energy is not only related to ESD voltage FDY and device capacitance, but is also significantly affected by ambient temperature HW, multiplying the calculated ESD energy by the temperature influence coefficient K can adjust the calculated ESD energy value to reflect the actual conditions at different ambient temperatures. This calculation portion is subtracted from the total ESD energy to obtain the adjusted ESD energy value, which helps to more accurately evaluate the ESD energy of the device at different ambient temperatures HW and provides basic data for subsequent anti-static performance evaluation. This algorithm unit introduces the temperature influence coefficient K to make the calculation closer to reality and reflect the true impact of temperature on electrostatic discharge energy. The accurate calculation results help us understand the potential harm of electrostatic discharge to new energy vehicle components and take corresponding protective measures. The unit for evaluating the energy generated by electrostatic discharge at different ambient temperatures not only considers the two direct factors of electrostatic discharge voltage FDY and capacitance, but also incorporates ambient temperature HW and temperature influence coefficient K, making the evaluation results more comprehensive and accurate. This comprehensive consideration helps identify potential problem points and provides direction for subsequent optimization of anti-static measures. The calculated electrostatic discharge energy can be used to evaluate the performance differences of different anti-static materials, thereby selecting more suitable anti-static materials. At the same time, it can also guide the improvement of production processes, including adjusting electrostatic protection measures during the production process to reduce the damage of electrostatic discharge to components.
[0022] See also Figures 1 to 3 The calculation formula for comprehensively evaluating the anti-static performance unit of new energy vehicle parts is as follows: ; in: FX is the antistatic performance index; SW is the operating temperature of the device; SW max The upper limit of the device's operating temperature; DZ is the anti-static resistance, and DZ indicates the anti-static performance of the equipment; DYH is the anti-static performance threshold voltage; DY is the current measured anti-static voltage.
[0023] In this embodiment, first, The calculation part takes into account the device operating temperature SW and the upper limit of the device operating temperature SW max The proportional relationship between the two, and the effect of this ratio on the electrostatic discharge energy, is calculated by multiplying a temperature-related factor. ", which can adjust the weight of electrostatic discharge energy when calculating the anti-static performance index FX, thereby reflecting the anti-static performance of the device at different operating temperatures. This calculation part is an important factor in the calculation of the anti-static performance index. It helps to evaluate the anti-static performance of the device when it is close to its maximum operating temperature, providing an important reference for the reliability and durability of the device; “ The calculation part aims to quantify the difference between the actual measured anti-static voltage and the anti-static performance threshold voltage DHY. By comparing these two voltage values, it is possible to evaluate whether the device's anti-static performance meets the standard and to what extent. This calculation part, as a subtraction item in the calculation of the anti-static performance index FX, helps to reflect the quality of the device's anti-static performance and provides key data for subsequent comprehensive anti-static effectiveness evaluation. The comprehensive evaluation unit of the anti-static performance of new energy vehicle parts in this algorithm integrates the anti-static resistance DZ, electrostatic discharge energy evaluation value FN, equipment operating temperature SW, equipment operating temperature upper limit SW max Multiple parameters such as the anti-static performance threshold voltage DYH and the current measured anti-static voltage DY can fully reflect the anti-static performance of the equipment. This comprehensive evaluation helps to identify the weak links in the anti-static performance of the equipment and provide a basis for subsequent improvements; Secondly, this algorithm unit considers the device operating temperature SW and the device operating temperature upper limit SW max The comprehensive evaluation unit for the anti-static performance of new energy vehicle parts can evaluate the anti-static performance of equipment at different temperatures, which improves the applicability of the evaluation and helps ensure that the anti-static performance of the equipment in different working environments can meet the requirements; In addition, the anti-static performance index FX calculated by this algorithm unit can timely discover the deficiencies in the anti-static performance of the equipment, provide a basis for performance optimization, and thus improve the anti-static performance of the equipment.
[0024] See also Figures 1 to 3 , the calculation formula for evaluating the comprehensive anti-static performance unit under different working conditions is as follows: ; in: FZ is the comprehensive anti-static performance evaluation value; FX prev The last time the anti-static performance index was measured, FX prev Reflects the anti-static performance index FX calculated from the last measurement of the current component at different temperatures; WF is the temperature range, which represents the maximum difference between the equipment operating temperature SW and the ambient temperature HW; DZ prev For the last measurement of anti-static resistance, DZ prev Reflects the anti-static resistance DZ of the current component under the last different temperature measurements.
[0025] In this embodiment, the algorithm unit first " The calculation part is designed to comprehensively consider the anti-static performance index FX measured last time. prev The ESD performance index FX is used to evaluate the stability and changing trend of the device's ESD performance, thereby more smoothly reflecting changes in device performance. This calculation is an important factor in the comprehensive ESD performance evaluation. It helps to assess the stability of the device's ESD performance at different measurement time points and provides guidance for subsequent improvement and optimization. “ The calculation part aims to quantify the impact of the difference between the ambient temperature HW and the equipment operating temperature SW on the comprehensive anti-static performance evaluation. By dividing by a factor corresponding to the temperature range WF and taking the square, the impact of the temperature difference on the evaluation result can be amplified, thereby more sensitively reflecting the potential impact of temperature on anti-static performance. This calculation part appears as a term in the numerator, but it has a significant impact on the calculation results of the comprehensive anti-static performance evaluation. By adjusting the weight of the temperature difference, the anti-static performance of the equipment under different temperature conditions can be more accurately evaluated. This algorithm unit compares the anti-static performance index FX measured last time prev The anti-static performance index FX can intuitively reflect changes in the anti-static performance of the equipment, which helps to promptly detect performance degradation and abnormal fluctuations, providing a basis for subsequent maintenance and improvement; By considering the temperature range WF, evaluating the comprehensive anti-static performance unit under different working conditions can evaluate the impact of temperature on anti-static performance, which helps to understand the influence of temperature on anti-static performance and provide guidance for temperature control; In addition, by monitoring the changes in the anti-static resistor DZ, the degradation of the resistor performance can be discovered in a timely manner, which helps prevent the degradation of the anti-static performance caused by the degradation of the resistor performance and provides a basis for equipment maintenance.
[0026] For example 2, please refer to Figures 1 to 3 Based on the comprehensive anti-static performance evaluation value FZ, and after all the comprehensive anti-static performance evaluation values FZ measured at different temperatures of the current component are calculated and output, the comprehensive anti-static performance evaluation values FZ of all the current components are ranked and evaluated, as follows: FZ1>FZ2>FZ4>......>FZN; FZ1 is the comprehensive anti-static performance evaluation value at the first measurement temperature, FZ2 is the comprehensive anti-static performance evaluation value at the second measurement temperature, FZ4 is the comprehensive anti-static performance evaluation value at the fourth measurement temperature, and FZN is the comprehensive anti-static performance evaluation value at the Nth measurement temperature; Based on this ranking, the anti-static performance of the current components is evaluated under simulated working conditions and different temperatures; Based on the ranking evaluation of all the comprehensive anti-static performance evaluation values FZ of the current components, and compared with the ranking evaluation of the previous components in the same batch that have been calculated and output, the specific test analysis is as follows: If the ranking evaluation of the current component is consistent with that of the previous component in the same batch, that is, the ranking of the previous component in the same batch is FZ1>FZ2>FZ4>......>FZN, it indicates that the anti-static performance of the components in this batch is stable and reliable, is less affected by temperature, and has high quality and consistency. You should continue to test the next component in the same batch; If the ranking evaluation of the current component is inconsistent with that of the previous component in the same batch, that is, there is a deviation between the ranking of the previous component in the same batch and the ranking of FZ1>FZ2>FZ4>......>FZN, it indicates that there are process fluctuations and errors in the production process. The quality control of raw materials should be strengthened, and the current component should be inspected again.
[0027] In this embodiment, the closed-loop evaluation system can continuously adjust the temperature influence coefficient K parameter according to the comprehensive anti-static performance evaluation value FZ, thereby continuously optimizing the accuracy and applicability of the anti-static detection method. As the production environment changes and the performance of components improves, the closed-loop evaluation system can dynamically adjust the evaluation parameters to ensure the real-time and effectiveness of the anti-static detection method. Moreover, the closed-loop evaluation system can promptly discover and resolve anti-static performance problems, avoid quality risks in the production process, and thus improve production efficiency. In addition, by evaluating the comprehensive anti-static performance evaluation value FZ calculated by the comprehensive anti-static performance unit under different working conditions, the anti-static performance of components under different working environments can be quantitatively evaluated, which makes the evaluation results more objective and accurate. It is worth noting that comparing and ranking the comprehensive anti-static performance evaluation values FZ at different temperatures helps identify components that perform well under different temperature conditions, thereby providing strong data support for subsequent optimization and improvement. This helps manufacturers adjust process parameters, improve material selection, and optimize design during the production process to enhance the anti-static performance of products. By simulating anti-static performance evaluation under different working environments, a more comprehensive understanding of the performance of components in actual applications can be achieved, thereby improving product reliability and durability. In addition, establishing unified evaluation standards and processes will help promote the standardization and regularization of anti-static performance evaluation and improve the comparability and credibility of evaluation results. In addition, by comparing the anti-static performance rankings of the same batch of parts at different temperatures, the performance stability and consistency of the batch of parts can be more accurately evaluated. If the rankings are consistent, it means that the performance of the batch of parts is relatively stable and is less affected by temperature. If the rankings are inconsistent, it is necessary to conduct in-depth analysis of the reasons and take appropriate measures to improve them. This comparison method helps to improve the accuracy of the evaluation and provide more reliable evaluation results. Secondly, by comparing the performance rankings at different temperatures, we can more intuitively understand the problems in the production process. Consumers are more concerned about product quality and performance stability. If stable and reliable anti-static performance evaluation results can be provided, it will help improve product competitiveness and attract more consumers. At the same time, by comparing the performance rankings at different temperatures, we can also understand the performance of products in different environments, provide consumers with more comprehensive product information, and enhance their purchasing confidence. In summary, comparing the anti-static performance ranking of the same batch of parts under different temperature conditions with the previous evaluation results has the beneficial effects of improving evaluation accuracy, optimizing production processes, enhancing product competitiveness and promoting technological innovation. This comparison method helps to more comprehensively understand the performance characteristics and limitations of the product, and provides strong support for product optimization and improvement.
[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. An anti-static detection method for the production of new energy vehicle parts, characterized in that: The specific steps to implement the detection method are as follows: Step 1: Using an electrostatic discharge detection module, perform electrostatic discharge tests on the current component at different temperatures and collect the detection status; Step II: Using the evaluation calculation module, first calculate the output electrostatic discharge energy evaluation value FN, the anti-static performance index FX, and the comprehensive anti-static performance evaluation value FZ in sequence; The evaluation and calculation module includes a unit for evaluating the energy generated by electrostatic discharge at different ambient temperatures, a unit for comprehensively evaluating the anti-static performance of new energy vehicle parts, a unit for evaluating the comprehensive anti-static efficiency under different working conditions, and a unit for data comparison and sorting analysis. Step III: Based on the comprehensive anti-static performance evaluation value FZ, the data comparison and ranking analysis unit is used to rank and evaluate the comprehensive anti-static performance evaluation values FZ output at different temperatures, and the ranking evaluation is also compared with the ranking evaluation of the previous component in the same batch.
2. The anti-static detection method for the production of new energy vehicle parts according to claim 1, characterized in that: The equipment used in the electrostatic discharge detection module includes an electrostatic discharge generator, a capacitance meter, a thermometer, a resistance meter, and a voltage measuring device; The equipment used by the evaluation and calculation module includes a data recording and processing system.
3. The anti-static detection method for the production of new energy vehicle parts according to claim 2, characterized in that: The calculation formula for evaluating the energy size unit generated by electrostatic discharge at different ambient temperatures is as follows: FN=SQRT(FDY 2 ×DR)-HW×K; in: FN is the electrostatic discharge energy assessment value; FDY is the electrostatic discharge voltage; DR is the capacitance of the device under test; HW is the ambient temperature; K is the temperature influence coefficient.
4. The anti-static detection method for the production of new energy vehicle parts according to claim 3, characterized in that: The temperature influence coefficient K represents the degree of influence of temperature on electrostatic discharge energy. Assuming that there is a linear relationship between electrostatic discharge energy and temperature, the linear relationship between electrostatic discharge energy and temperature is calculated as follows: FN old =a×HW+b; FN old FN is the electrostatic discharge energy evaluation value of the previous component. old Reflects the electrostatic discharge energy assessment value FN calculated for the previous component in the same batch at the same test temperature as the current component; a is a factor related to capacitance and voltage, that is, the approximate value of the temperature influence coefficient K; b is a constant constant term; FN old =a×HW+b and solve the equation to calculate the temperature influence coefficient K.
5. The anti-static detection method for the production of new energy vehicle parts according to claim 4, characterized in that: The calculation formula for the comprehensive evaluation of the anti-static performance unit of new energy vehicle parts is as follows: ； in: FX is the antistatic performance index; SW is the operating temperature of the device; SW max The upper limit of the device's operating temperature; DZ is the anti-static resistance, and DZ indicates the anti-static performance of the equipment; DYH is the anti-static performance threshold voltage; DY is the current measured anti-static voltage.
6. The anti-static detection method for the production of new energy vehicle parts according to claim 5, characterized in that: The calculation formula for evaluating the comprehensive anti-static performance unit under different working conditions is as follows: ； in: FZ is the comprehensive anti-static performance evaluation value; FX prev The last time the anti-static performance index was measured, FX prev Reflects the anti-static performance index FX calculated from the last measurement of the current component at different temperatures; WF is the temperature range, which represents the maximum difference between the equipment operating temperature SW and the ambient temperature HW; DZ prev For the last measurement of anti-static resistance, DZ prev Reflects the anti-static resistance DZ of the current component under the last different temperature measurements.
7. The anti-static detection method for the production of new energy vehicle parts according to claim 6, characterized in that: Based on the comprehensive anti-static performance evaluation value FZ, and after all the comprehensive anti-static performance evaluation values FZ of the current component measured at different temperatures are calculated and output, the comprehensive anti-static performance evaluation values FZ of all the current components are ranked and evaluated, as follows: FZ1>FZ2>FZ4>......>FZN; FZ1 is the comprehensive anti-static performance evaluation value at the first measurement temperature, FZ2 is the comprehensive anti-static performance evaluation value at the second measurement temperature, FZ4 is the comprehensive anti-static performance evaluation value at the fourth measurement temperature, and FZN is the comprehensive anti-static performance evaluation value at the Nth measurement temperature; Based on this ranking, the anti-static performance of the current components is evaluated under simulated working conditions and different temperatures.
8. The anti-static detection method for the production of new energy vehicle parts according to claim 7, characterized in that: Based on the ranking evaluation of all the comprehensive anti-static performance evaluation values FZ of the current component, and compared with the ranking evaluation of the previous component in the same batch, the specific test analysis is as follows: If the ranking evaluation of the current component is consistent with that of the previous component in the same batch, that is, the ranking of the previous component in the same batch is FZ1>FZ2>FZ4>......>FZN, it indicates that the anti-static performance of the components in this batch is stable and reliable, is less affected by temperature, and has high quality and consistency. You should continue to test the next component in the same batch; If the ranking evaluation of the current component is inconsistent with that of the previous component in the same batch, that is, there is a deviation between the ranking of the previous component in the same batch and the ranking of FZ1>FZ2>FZ4>......>FZN, it indicates that there are process fluctuations and errors in the production process. The quality control of raw materials should be strengthened, and the current component should be inspected again.