Magnetic drive vibration detection system and detection method, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a magnetic drive vibration detection system and method, electronic equipment and a storage medium, the system comprises a magnetic drive vibration assembly and a control processor, the magnetic drive vibration assembly comprises an electromagnetic coil, and the control processor is connected with the electromagnetic coil; the electromagnetic coil is used for generating a magnetic field at the detection station in a power-on state, and the detection station is used for placing a detection workpiece; the control processor is used for generating a plurality of different control parameters, and the control parameters are used for adjusting the current in the electromagnetic coil so as to generate a plurality of corresponding working magnetic fields at the detection station; the control processor is further used for acquiring position data of the detection workpiece in the working magnetic field and generating a vibration detection result of the detection workpiece according to the position data, so that the high-precision vibration detection requirement of the detection workpiece with the high-precision requirement can be met, and the vibration detection result of the detection workpiece can be accurately obtained; and the arrangement cost and the later maintenance cost are effectively reduced by utilizing the magnetic drive device with simple composition.

Description

Technical Field

[0001] The present application relates to the field of vibration testing technology, and in particular to a magnetically driven vibration detection system, a detection method, an electronic device and a storage medium. Background Art

[0002] During the production and processing process or the subsequent transportation process, the product will inevitably be affected by external forces and vibrate. In order to further ensure product quality, it is usually necessary to conduct vibration tests on the product during the production and processing process to evaluate the performance changes of the product during the vibration process, so as to ensure the output of products with normal working performance after vibration.

[0003] In the related art, vibration testing is performed during the production and processing of products. Usually, a mechanical vibration table is set up somewhere on the transportation line, and then complex mechanical components are used to generate vibrations and control the vibration frequency and amplitude to achieve different degrees of vibration of the mover, so as to achieve vibration detection of the product. However, due to the limitation of hardware equipment, the mechanical vibration table can usually only provide several fixed vibration gears for detection when performing vibration detection. When testing electronic components with high precision requirements, the mechanical vibration table cannot meet the high-precision vibration detection requirements. Summary of the invention

[0004] The embodiments of the present application provide a magnetically driven vibration detection system, a detection method, an electronic device, and a storage medium, which can meet the requirements for high-precision vibration detection of electronic components.

[0005] To achieve the above objectives, a first aspect of an embodiment of the present application provides a magnetic drive conveying system, comprising:

[0006] A magnetically driven vibration component and a control processor, wherein the magnetically driven vibration component includes an electromagnetic coil, and the control processor is connected to the electromagnetic coil;

[0007] The electromagnetic coil is used to generate a magnetic field at a detection station when powered on, and the detection station is used to place a detection workpiece;

[0008] The control processor is used to generate a plurality of different control parameters, and the control parameters are used to adjust the current in the electromagnetic coil to generate a plurality of corresponding working magnetic fields at the detection station;

[0009] The control processor is further used to obtain position data of the detection workpiece in the working magnetic field, and generate a vibration detection result of the detection workpiece according to the position data.

[0010] In some embodiments, when the control processor generates a plurality of different control parameters, the steps include:

[0011] Acquire the workpiece type of the inspected workpiece, and determine at least one inspection parameter type and an inspection parameter range corresponding to each inspection parameter type based on the workpiece type;

[0012] The coil parameters of the electromagnetic coil are acquired, and a plurality of the control parameters are generated based on the detection parameter range and the coil parameters.

[0013] In some embodiments, the detection parameter type includes at least one of acceleration, frequency response, displacement, amplitude, resonant frequency, stress, temperature and long-time test.

[0014] In some embodiments, when the inspection workpiece is a power battery, the inspection parameter types include acceleration, stress and temperature.

[0015] In some embodiments, when the control processor generates the control parameter based on the detection parameter range and the coil parameter, the steps include:

[0016] Obtaining the mass of the detected workpiece and the magnetic field sensing area;

[0017] A plurality of control parameters corresponding to the detection parameter range are generated based on the workpiece mass, the magnetic drive induction area, and the coil parameters.

[0018] In some embodiments, a function detection component is further included, and the function detection component is connected to the control processor;

[0019] The function detection component is used to perform function detection on the detection workpiece to obtain function detection data of the detection workpiece, and send the function detection data to the control processor;

[0020] When the control processor generates the vibration detection result of the detection workpiece according to the position data, the execution steps include:

[0021] A vibration detection result of the detection workpiece is obtained according to the position data and the functional detection data.

[0022] In some embodiments, after the control processor obtains the vibration detection result of the detection workpiece according to the position data and the function detection data, it further performs the following steps:

[0023] Generate static magnetic levitation control parameters based on the workpiece mass, the magnetic drive induction area and the coil parameters;

[0024] Adjusting the control parameter of the current in the electromagnetic coil based on the static magnetic levitation control parameter so that the inspection workpiece approaches being stationary on the inspection station;

[0025] The static change time and the fluctuation amplitude of the detection workpiece are obtained, and the vibration detection result is updated based on the static change time, the fluctuation amplitude and the static magnetic levitation control parameter.

[0026] In some embodiments, the system is further provided with a detection sensor, and the detection sensor is connected to the control processor;

[0027] The detection sensor is at least used to obtain the position data and transmit the position data to the control processor.

[0028] In some embodiments, the system is provided with a detection platform at the detection station, the detection platform is provided with an induction magnet, and the magnetic field induction area is a plane orthographic projection of the induction magnet perpendicular to the magnetic flux lines of the working magnetic field.

[0029] In some embodiments, the detection workpiece includes a magnet assembly, and the magnetic field sensing area is a plane orthographic projection of the magnetic flux lines of the magnet assembly perpendicular to the working magnetic field.

[0030] In some embodiments, the system is further provided with an adaptive fixture, and the adaptive fixture is used to fix the inspection workpiece at the inspection station.

[0031] To achieve the above-mentioned purpose, a second aspect of an embodiment of the present application proposes a magnetic drive vibration detection method, which is applied to the magnetic drive vibration detection system as described in the first aspect, and the method comprises:

[0032] generating a plurality of different control parameters, and adjusting the current of the electromagnetic coil according to the control parameters to generate a plurality of corresponding working magnetic fields at the detection station;

[0033] The position data of the detection workpiece in the working magnetic field is acquired, and the vibration detection result of the detection workpiece is generated according to the position data.

[0034] To achieve the above-mentioned purpose, the third aspect of an embodiment of the present application proposes an electronic device, which includes a memory and a processor, the memory stores a computer program, and the processor implements the magnetic-driven vibration detection method described in the second aspect when executing the computer program.

[0035] To achieve the above-mentioned purpose, the fourth aspect of an embodiment of the present application proposes a storage medium, which is a computer-readable storage medium, and the storage medium stores a computer program. When the computer program is executed by a processor, it implements the magnetic drive vibration detection method described in the second aspect above.

[0036] The magnetic drive vibration detection system proposed in the embodiment of the present application comprises: a magnetic drive vibration component and a control processor, the magnetic drive vibration component comprises an electromagnetic coil, and the control processor is connected to the electromagnetic coil; the electromagnetic coil is used to generate a magnetic field at the detection station in the power-on state, and the detection station is used to place the detection workpiece; the control processor is used to generate a plurality of different control parameters, and the control parameters are used to adjust the current in the electromagnetic coil to generate a plurality of corresponding working magnetic fields at the detection station; the control processor is also used to obtain the position data of the detection workpiece in the working magnetic field, and generate the vibration detection result of the detection workpiece according to the position data. The embodiment of the present application utilizes the magnetic drive device to finely adjust the magnetic field change to accurately change the characteristics of the force of the detection workpiece, and accurately adjusts the output working magnetic field by accurately adjusting the control parameters of the electromagnetic coil, so as to accurately adjust the vibration frequency and vibration amplitude of the detection workpiece on the detection station to meet the high-precision vibration detection requirements of the detection workpiece, and further utilizes the position data of the detection workpiece during the vibration process to accurately obtain the vibration detection result of the detection workpiece; and the mechanical vibration table composed of complex mechanical parts is replaced by a magnetic drive device with a simple composition, which can effectively reduce the setting cost and the later maintenance cost.

[0037] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of a magnetically driven vibration detection system provided in one embodiment of the present application.

[0039] Figure 2 This is a structural schematic diagram of a magnetically driven vibration assembly provided in yet another embodiment of the present application.

[0040] Figure 3 It is a structural schematic diagram of a magnetically driven vibration detection system equipped with a detection sensor provided in yet another embodiment of the present application.

[0041] Figure 4 It is a structural schematic diagram of a magnetically driven vibration detection system provided with a detection platform provided in another embodiment of the present application.

[0042] Figure 5It is a structural schematic diagram of a magnetically driven vibration detection system provided with a detection platform provided in another embodiment of the present application.

[0043] Figure 6 It is a structural schematic diagram of a magnetically driven vibration detection system equipped with a functional detection component provided in yet another embodiment of the present application.

[0044] Figure 7 This is a flow chart of a magnetic drive vibration detection method provided in yet another embodiment of the present application.

[0045] Figure 8 This is a schematic diagram of the hardware structure of an electronic device provided in yet another embodiment of the present application. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0047] It should be noted that although the functional modules are divided in the device schematic and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0049] During the production and processing process or the subsequent transportation process, the product will inevitably be affected by external forces and vibrate. In order to further ensure product quality, it is usually necessary to conduct vibration tests on the product during the production and processing process to evaluate the performance changes of the product during the vibration process, so as to ensure the output of products with normal working performance after vibration.

[0050] In the related art, vibration testing is performed during the production and processing of products. Usually, a mechanical vibration table is set up somewhere on the transportation line, and then complex mechanical parts are used to generate vibrations and control the vibration frequency and amplitude to achieve different degrees of vibration of the mover to achieve vibration detection of the product. However, due to the limitation of hardware equipment, the mechanical vibration table can usually only provide a few fixed vibration gears for detection when performing vibration detection.

[0051] When testing electronic components with high precision requirements (such as smart phones, tablets, hard disk drives, micro detection sensors, optical devices, micro-electromechanical systems, precision mechanical components, integrated circuits, semiconductor chips, optical detection sensors, etc.), the requirements for vibration frequency and amplitude during the detection process are very strict, and mechanical vibration tables cannot meet the high-precision vibration detection requirements.

[0052] Based on this, in order to meet the requirements of high-precision vibration detection of electronic components, the embodiment of the present application utilizes a magnetic drive device to finely adjust the magnetic field changes to accurately change the force characteristics of the detection workpiece, and accurately adjusts the control parameters of the electromagnetic coil to accurately adjust the output working magnetic field, thereby accurately adjusting the vibration frequency and vibration amplitude of the detection workpiece at the detection station to meet the high-precision vibration detection requirements of the detection workpiece, and further utilizes the position data of the detection workpiece during the vibration process to accurately obtain the vibration detection results of the detection workpiece; and using a simple magnetic drive device to replace a mechanical vibration table composed of complex mechanical components can effectively reduce the setup cost and subsequent maintenance cost.

[0053] The magnetic drive vibration detection system, magnetic drive vibration detection method, electronic device and storage medium provided by the embodiments of the present application will be further described below. First, the magnetic drive conveying system provided by the present application is described. Figure 1 , is a schematic diagram of the structure of a magnetically driven vibration detection system provided in an embodiment of the present application. Figure 1 As shown, the magnetically driven vibration detection system 100 includes a control processor 110 and a magnetically driven vibration assembly 120. The control processor 110 is connected to the magnetically driven vibration assembly 120, and the magnetically driven vibration assembly 120 is used to generate a magnetic field acting on a detection station, and then the control processor 110 is used to control the magnetically driven vibration assembly 120 to change the generated magnetic field (such as changing the strength, frequency, direction, etc. of the magnetic field) according to different requirements. The detection station is used to place the detection workpiece 200 that needs to be vibrated.

[0054] It can be understood that the detection station is a position located on one side of the magnetic drive vibration component 120, which can be a fixed position or a flexible position that moves with the position of the magnetic drive vibration component 120, and is not limited in this embodiment.

[0055] Reference Figure 2 , is a schematic diagram of the structure of a magnetically driven vibration assembly provided in an embodiment of the present application. Figure 2As shown in , the magnetically driven vibration assembly 120 includes at least a plurality of stators 121, and an electromagnetic coil 122 is wound around the stator 121. The electromagnetic coil 122 generates a magnetic field at the detection station when powered on. In addition, the control processor 110 can directly adjust the control parameters of the current of the electromagnetic coil 122 when powered on to change the magnetic field generated by the electromagnetic coil 122 at the detection station.

[0056] In addition, in order to adapt to the vibration detection requirements of different types of detection workpieces 200 (such as smart phones, tablets, hard drives, micro detection sensors, optical devices, micro-electromechanical systems, precision mechanical components, integrated circuits, semiconductor chips, optical detection sensors, etc.), it is necessary to ensure that the number of stators 121 wound with electromagnetic coils 122 on the magnetic-driven vibration assembly 120 is sufficient to support a sufficient range of frequency and amplitude changes, thereby meeting the testing requirements of various detection workpieces 200.

[0057] In some embodiments, the magnetically driven vibration detection system 100 can be arranged on a section of the magnetically driven conveyor line, and combined with the electromagnetic control characteristics of the magnetically driven conveyor line, the magnetically driven vibration detection system 100 can accurately measure various vibration parameters of the detection workpiece 200 (such as electronic components) conveyed on the magnetically driven conveyor line. It is understandable that the magnetically driven vibration detection system 100 can perform a comprehensive vibration performance test on the detection workpiece 200 without affecting the overall operation of the magnetically driven conveyor line.

[0058] Based on this, when the inspection workpiece 200 running on the magnetic drive conveyor line runs to the inspection station, by controlling the electromagnetic coil 122 of the magnetic drive vibration assembly 120, only the magnetic field at the inspection station can be changed, so that the inspection workpiece 200 on the inspection station vibrates to a corresponding degree, but the magnetic field in other places on the magnetic drive conveyor line will not be changed, thereby not affecting the normal operation of other components on the magnetic drive conveyor line and avoiding unnecessary vibration energy loss.

[0059] It is understandable that on the magnetic drive conveyor line, the test workpiece is usually transported by a mover. When the mover runs to the detection station, the magnetic field generated by the magnetic drive vibration assembly 120 will cause the mover and the test workpiece 200 to vibrate together; and because the magnetic drive conveyor line is essentially non-contact, that is, there is no physical contact between the mover and the stator. Therefore, when the mover and the test workpiece 200 vibrate, it will not directly affect the stators of other components on the magnetic drive conveyor line. This means that when performing a vibration test on the test workpiece 200 on a magnetic drive conveyor line equipped with a magnetic drive vibration detection system 100, the mover does not need to be separated from the stator, and the vibration detection process can be completed directly on the magnetic drive conveyor line. After the vibration detection is completed, the mover can continue to run along the magnetic drive conveyor line to ensure the efficient operation of the production line on the magnetic drive conveyor line.

[0060] In addition, the stator coils on the magnetic drive conveyor line are usually used to provide a constant magnetic field to drive the mover to move along the track of the magnetic drive conveyor line. Their control is mainly focused on the speed and position of the mover, rather than frequently adjusting the current or magnetic field. The electromagnetic coil 122 in the magnetic drive vibration assembly 120 is specially designed for vibration detection, and can generate different vibration amplitudes and frequencies by accurately adjusting the current intensity and frequency to simulate vibration conditions in various environments. Therefore, the electromagnetic coil 122 in the magnetic drive vibration assembly 120 needs to have extremely high control accuracy, be able to finely adjust the current to generate the required vibration characteristics, and need to support rapid current changes to generate vibrations of various frequencies, as well as a wide adjustment range, and must be able to support current changes from low frequency to high frequency, and vibration amplitude generation from small to large.

[0061] In some embodiments, when the inspection workpiece 200 is placed in the inspection station, the control processor 110 determines the corresponding multiple different inspection parameter types and the inspection parameter ranges of the different inspection parameter types corresponding to the workpiece type according to the workpiece type of the inspection workpiece 200, thereby generating multiple corresponding control parameters according to these inspection parameter ranges and the coil parameters of the electromagnetic coil 122 itself in the magnetic drive vibration component 120, and controlling the magnetic drive vibration component 120 to adjust the current of the electromagnetic coil 122 according to these control parameters, thereby indirectly controlling the magnetic field generated by the electromagnetic coil 122, so as to obtain a working magnetic field corresponding to the control parameters for changing the vibration force on the inspection workpiece 200 in the inspection station. The control parameters include the current intensity and frequency of the current in the electromagnetic coil 122, etc.

[0062] Reference Figure 3 , is a schematic diagram of the structure of a magnetically driven vibration detection system equipped with a detection sensor provided in an embodiment of the present application. Figure 3 As shown in , the magnetic drive vibration detection system 100 is also equipped with at least one detection sensor 130, and the detection sensor 130 is connected to the control processor 110. When the detection workpiece 200 is subjected to vibration detection at the detection station, the detection sensor 130 is used to obtain relevant detection parameters of the detection workpiece 200 (such as position data and temperature data of changes caused by vibration, etc.), and then transmit these relevant detection parameters to the control processor 110, so that the control processor 110 processes these relevant detection parameters according to these relevant detection parameters and uses relevant analysis software to generate vibration detection results of the detection workpiece 200 (such as acceleration curves, frequency response diagrams, displacement and stress distribution analysis results, etc.).

[0063] Among them, the detection sensor 130 includes a position sensor, an acceleration sensor, a stress sensor, a voltage and current sensor, an amplitude sensor, a temperature sensor, and the like.

[0064] The embodiment of the present application utilizes the characteristic that the coil parameters of the electromagnetic coil 122 can be fine-tuned, and obtains corresponding control parameters for the detection parameter types and detection parameter ranges corresponding to the detection workpieces 200 of different types of workpieces, so as to meet the high-precision vibration detection requirements of different types of detection workpieces 200 in the magnetic-driven vibration detection system 100, so as to improve the reliability and universality of the magnetic-driven vibration detection system 100; and further utilizes a variety of detection sensors 130 to obtain comprehensive relevant detection parameters when performing vibration detection on the detection workpiece 200, so as to improve the accuracy of vibration detection.

[0065] Among them, the detection parameter types for different workpiece types include acceleration, frequency response, displacement, amplitude, resonant frequency, stress, temperature and long-term testing. For example, when the workpiece to be detected is a power battery, the detection parameter types include acceleration, stress and temperature. The detection methods and detection targets of these detection parameter types are specifically shown below.

[0066] 1. Acceleration: The test method is generally to gradually adjust the current intensity of the electromagnetic coil 122 of the magnetic drive vibration assembly 120, thereby changing the intensity of the working magnetic field at the detection station, so that the detection workpiece 200 generates vibrations of different intensities, that is, the detection workpiece 200 generates different degrees of acceleration. Then, an acceleration sensor is used to measure the acceleration response data and position data of the detection workpiece 200 under different current intensities, and use them as the recorded data of the relevant detection parameters. The goal is to measure the performance of the detection workpiece 200 under different accelerations and evaluate its tolerance.

[0067] 2. Frequency response: The test method is generally to keep the current intensity constant, gradually adjust the frequency of the electromagnetic coil 122 of the magnetic drive vibration assembly 120, to detect the frequency of the working magnetic field at the workstation, and use an acceleration sensor and an amplitude sensor to record the acceleration response data and position data of the test workpiece 200 at different frequencies, and use them as the recorded data of the relevant test parameters. The goal is to determine the frequency response characteristics of the test workpiece 200 and identify the resonant frequency.

[0068] 3. Displacement: The test method is to set a fixed stator (which can be a vibration detection component 120) below the detection station, and set a feedback ruler on the fixed stator. The feedback ruler can directly measure the relative displacement data of the detection workpiece 200 relative to the fixed stator during the vibration detection process, and use it as the record data of the relevant detection parameters. The goal is to ensure that the displacement of the detection workpiece 200 does not exceed the design range when vibration occurs.

[0069] 4. Amplitude: The test method is to adjust the current intensity of the electromagnetic coil 122 of the magnetic drive vibration assembly 120 to change the intensity of the working magnetic field at the detection station, so that the detection workpiece 200 generates vibrations of different intensities, and then use the amplitude detection sensor to measure the amplitude response data of the detection workpiece 200, and use it as the record data of the relevant detection parameters. The goal is to evaluate the performance stability of the detection workpiece 200 under different amplitude conditions.

[0070] 5. Resonant frequency: The test method is to gradually adjust the frequency of the electromagnetic coil 122 of the magnetic drive vibration assembly 120, and monitor the vibration intensity of the test workpiece 200 at various frequencies in real time through the amplitude detection sensor to identify the frequency point where the maximum vibration occurs, that is, the resonant frequency of the test workpiece 200, and use it as the recorded data of the relevant test parameters. The goal is to determine the resonant frequency of the test workpiece 200 to avoid the frequency approaching this value in actual use.

[0071] 6. Stress: The test method is to measure the stress distribution data inside the test workpiece 200 by using a stress detection sensor when applying vibrations of different intensities to the test workpiece 200, especially the stress concentration area under high vibration intensity conditions, and use the stress distribution data as the record data of the relevant test parameters. The goal is to detect the structural stress of the workpiece 200 under vibration and evaluate its structural strength and reliability.

[0072] 7. Environmental conditions: The test method is to conduct vibration tests under different conditions of the surrounding environment (such as temperature and humidity) of the test station, and observe the vibration response of the test workpiece 200 under different environmental conditions. The goal is to simulate the vibration behavior of the test workpiece 200 in a real working environment and ensure the performance reliability of the test workpiece 200 in different environments.

[0073] 8. Long-term test: The test method is to control the test workpiece 200 at the test station to continuously perform vibration test under certain vibration intensity conditions, and observe the performance changes of the test workpiece 200 after long-term vibration. The goal is to evaluate the long-term vibration tolerance of the test workpiece 200.

[0074] It is understandable that for different types of workpieces, there are corresponding detection parameter types and detection parameter ranges corresponding to each detection parameter type. Among them, the detection parameter range is for the parameter range of the vibration intensity and frequency generated by the detection workpiece 200 itself, such as the vibration force of the detection workpiece 200 is 1 Newton (N) to 10 Newtons (N), and the vibration acceleration is 0.1 meters per second squared (m / s 2 )etc.

[0075] Then, when performing vibration detection on the detection workpiece 200, the control processor 110 first determines the workpiece type of the detection workpiece 200, and then further obtains multiple detection parameter types corresponding to the workpiece type and the detection parameter range of each detection parameter type pair. Next, the control processor 110 generates multiple discrete control parameters corresponding to the detection parameter range based on the workpiece mass M of the detection workpiece 200 on the detection station, and the magnetic field sensing area V on the detection station that carries the detection workpiece 200 and is used to generate magnetic force with the working magnetic field, and then further generates multiple discrete control parameters corresponding to the detection parameter range based on the workpiece mass M, the magnetic field sensing area V and the coil parameters of the electromagnetic coil 122 in the magnetic drive vibration assembly 120, and these discrete control parameters can uniformly generate multiple working magnetic fields corresponding to the detection workpiece 200, and these working magnetic fields can achieve multiple discrete values ​​in the detection parameter range acting on the detection workpiece 200.

[0076] The coil parameters of the electromagnetic coil 122 are fixed parameters of the electromagnetic coil 122, such as inductance, resistance, coil magnetic permeability, number of coil turns, coil length, and the like.

[0077] Reference Figure 4 , is a schematic diagram of the structure of a magnetically driven vibration detection system provided with a detection platform according to an embodiment of the present application. Figure 4 As shown in , in the magnetically driven vibration detection system 100, a detection platform 140 carrying an induction magnet 141 is also provided on the detection station. The detection platform 140 is used to carry the detection workpiece 200 that is not provided with a magnet assembly. When the magnetically driven vibration assembly 120 generates a working magnetic field at the detection station, the induction magnet 141 in the detection platform 140 generates a magnetic force with the working magnetic field to maintain the suspension and vibration of the detection platform 140 and the detection workpiece 200 on the detection platform 140, thereby improving the detection reliability of the magnetically driven vibration detection system 100. Among them, the above-mentioned magnetic field sensing area is the plane orthographic projection of the induction magnet 141 of the detection platform 140 perpendicular to the magnetic flux lines of the working magnetic field, and the workpiece mass M will include the mass of the detection platform 140 and the detection workpiece 200. It can be understood that when the magnetically driven vibration detection system 100 is set in a magnetically driven conveyor line, the detection platform 140 can also be a mover that transports the detection workpiece 200.

[0078] Reference Figure 5 , is a schematic diagram of a detection workpiece provided with a magnet assembly in a magnetically driven vibration detection system provided by an embodiment of the present application. Figure 5As shown in , the detection workpiece 200 of certain specific workpiece types is also provided with a magnet assembly 210. In this case, the magnetic field sensing area is the plane orthographic projection of the magnetic flux lines of the magnet assembly 210 perpendicular to the working magnetic field. When the magnetically driven vibration assembly 120 generates a working magnetic field at the detection station, the magnet assembly 210 of the detection workpiece 200 and the working magnetic field generate magnetic force, so that the suspension and vibration of the detection workpiece 200 can be maintained without other carriers (such as movers, detection platforms 140, etc.), thereby reducing the setting cost of the magnetically driven vibration detection system 100 while maintaining the detection reliability of the magnetically driven vibration detection system 100.

[0079] Furthermore, when the control processor 110 generates control parameters corresponding to any parameter in the detection parameter range based on the workpiece mass M, the magnetic field sensing area V and the coil parameters of the electromagnetic coil 122 in the magnetic drive vibration assembly 120, it can be calculated through some related electromagnetic force formulas, as shown in the following calculation process.

[0080] This application takes a vibration force parameter F in the detection parameter range as an example, and then based on the vibration force parameter F and the Ampere force formula, that is, the vibration force parameter F = current intensity I × (coil length L × magnetic induction intensity B), combined with the relevant formula of magnetic induction intensity B and coil parameters, that is, magnetic induction intensity B = coil magnetic permeability μ × number of coil turns N × current intensity I / coil length L to obtain the corresponding current intensity I, and use the current intensity I as the control parameter corresponding to the vibration force parameter F.

[0081] Based on this, the control processor 110 can accurately determine the corresponding detection parameter type and appropriate control parameters according to the detection workpiece 200 of different detection workpiece types and different workpiece qualities placed on the detection station, so as to realize adaptive vibration detection of the detection workpiece 200, thereby effectively improving the reliability and universality of the magnetically driven vibration detection system.

[0082] Reference Figure 6 , is a schematic diagram of the structure of a magnetically driven vibration detection system equipped with a functional detection component provided in an embodiment of the present application. Figure 6As shown in , the magnetically driven vibration detection system 100 is also provided with a functional detection component 150 for performing functional detection on the detection workpiece 200. The functional detection component 150 is connected to the control processor 110. When the detection workpiece 200 is subjected to vibration detection at the detection station or after vibration detection, the control processor 110 sends a functional detection instruction to the functional detection component 150; then the functional detection component 150 responds to the functional detection instruction, performs detection of multiple preset functions corresponding to the workpiece type of the detection workpiece 200 on the detection workpiece 200, and obtains functional detection data of the detection workpiece 200, and sends the functional detection data to the control processor 110, so that the control processor 110 can subsequently obtain the vibration detection result of the detection workpiece 200 in combination with the functional detection data, thereby detecting whether the detection workpiece 200 will have problems such as functionality or performance degradation due to vibration, thereby improving the reliability of the magnetically driven vibration detection system 100.

[0083] In some embodiments, a closed-loop control system is also used in the magnetically driven vibration detection system 100. The control processor 110 can dynamically adjust the coil parameters (including current intensity and frequency) of the electromagnetic coil 122 of the magnetically driven vibration assembly 120 according to the real-time data fed back by the detection sensor to ensure that the vibration conditions of the detected workpiece are consistent with the test requirements.

[0084] In addition, in order to further improve the safety of the magnetically driven vibration detection system 100 in vibration detection of the detection workpiece 200, an adaptive clamp 160 is also provided at the detection station in the magnetically driven vibration detection system 100. When the detection workpiece 200 is placed at the detection station, the adaptive clamp 160 is used to clamp the detection workpiece 200 to ensure that the detection workpiece 200 is firmly fixed during the test process and no additional displacement will occur due to vibration, thereby preventing the detection workpiece 200 from moving out of the detection station due to vibration.

[0085] In addition, in order to further improve the accuracy of vibration detection of the workpiece 200 in the magnetic drive vibration detection system 100, the control processor 110 obtains the relevant detection parameters (including position data, acceleration response protection gear, resonant frequency, stress distribution data, etc.) and functional detection data obtained in the process of vibration detection of the workpiece 200, and then generates the control parameters of the electromagnetic coil 122 corresponding to the working magnetic field that allows the detection workpiece 200 to be stably suspended in the detection station based on the workpiece mass M, the magnetic drive induction area V and the coil parameters of the electromagnetic coil 122 of the magnetic drive vibration component 120, that is, the static magnetic levitation control parameters, and then adjusts the control parameters of the current in the electromagnetic coil The parameters are changed to the static magnetic levitation control parameters so that the detection workpiece 200 tends to be static on the detection station from the vibration process, and the static change time and the fluctuation amplitude of the detection workpiece 200 in the change process from vibration to static are recorded, so as to obtain the time and fluctuation amplitude required for the detection workpiece 200 to return to static state when there is no external force when the detection workpiece 200 vibrates due to external force, as the flattening detection result of the detection workpiece 200, and the flattening detection result (including the static change time and the fluctuation amplitude) and the static magnetic levitation control parameters are used as one of the recording contents of the vibration detection result of the detection workpiece 200, so as to further improve the vibration detection integrity and reliability of the magnetic-driven vibration detection system.

[0086] The following takes the detection workpiece 200 as a power battery and performs vibration detection in the magnetic drive vibration detection system 100 as an example.

[0087] In this scenario, the vibration environment of the power battery in actual use needs to be considered to ensure that the battery module containing the power battery can be stable and reliable during the production process and subsequent applications. The vibration test results required for the vibration test of the power battery mainly include the following three points.

[0088] 1. Verify the mechanical integrity of the power battery: Ensure that the power battery will not suffer mechanical damage under normal vibration conditions, such as loose connections, damaged casing, etc.

[0089] 2. Evaluate the electrical performance stability of the power battery: Ensure that under normal vibration conditions, the electrical connection of the power battery is stable and the electrical performance is not affected.

[0090] 3. Simulate actual application scenarios: such as the vibration environment under different working conditions during car driving, including high-speed driving, bumpy roads, sudden acceleration / deceleration, etc., to perform vibration detection on the power battery.

[0091] Based on this, taking the continuous vibration during high-speed driving, the impact vibration on bumpy roads, and the vibration under different ambient temperatures as examples, the vibration test process for designing a power battery is as follows.

[0092] 1. Select the power battery as the test sample corresponding to the inspection workpiece 200. Ensure that the test sample meets the production standards and has no obvious defects. Adjust the test environment temperature, humidity and other conditions to the specified values ​​to simulate the actual use environment. Normal temperature and high temperature / low temperature alternating environment are usually selected for testing. Specifically, the test environment temperature is generally set to -20℃, 25℃ and 60℃.

[0093] 2. Install acceleration sensors, stress sensors, voltage and current sensors, and temperature sensors in the magnetic drive vibration detection system 100 to detect the impact of vibration on the power battery.

[0094] 3. Perform low-frequency, medium-frequency and high-frequency vibration tests in sequence, and conduct a complete test process under each temperature condition. The specific parameters are as follows.

[0095] 3.1) Low frequency test: 10Hz to 50Hz, amplitude 0.5mm, test time 2 hours. Gradually increase the frequency and monitor the response of the power battery. Pay attention to whether there is resonance or obvious mechanical / electrical abnormality.

[0096] 3.2) Medium frequency test: 50Hz to 500Hz, amplitude 1mm, test time 4 hours. Pay special attention to the mechanical connection and internal electrical connection of the power battery.

[0097] 3.3) High frequency test: 500Hz to 2000Hz, amplitude 0.2mm, test time 1 hour. Check whether there is mechanical fatigue in the power battery or loose or disconnected electrical connections.

[0098] 4. Record the acceleration, stress and temperature changes of the power battery during vibration testing, and analyze the impact of vibration on the mechanical structure and electrical connections of the power battery.

[0099] Specifically, for acceleration data, the acceleration response of the power battery at various frequencies is recorded. It is usually necessary to collect acceleration data in three axes and analyze the overall vibration response of the power battery. For stress data, data is collected through stress sensors to analyze the stress distribution of the internal structure of the power battery, especially key parts such as solder joints and connectors. For electrical performance data, the voltage, current, internal resistance and other electrical parameters of the power battery are detected during the test to check whether there are fluctuations or abnormalities in the electrical performance.

[0100] 5. Check the mechanical integrity and electrical performance of the power battery, and conduct discharge / charge tests to ensure that the battery module functions normally after vibration. Specifically, the inspection includes mechanical structure inspection: After the vibration test, check whether the appearance, connectors, solder joints, etc. of the power battery are loose, cracked or otherwise damaged. Electrical performance evaluation: Measure and record the electrical performance of the power battery after the vibration test, check whether it is consistent with that before the test, and evaluate whether there is any performance degradation caused by vibration. Functional testing: Conduct functional tests such as discharge and charging to ensure that the power battery still functions normally after the vibration test.

[0101] The following is an example of the types of detection parameters and their corresponding detection parameter ranges that need to be considered when simulating high-speed driving and bumpy roads in an electric vehicle during vibration detection of a power battery.

[0102] The detection parameter range for acceleration is: 3g to 10g. When electric vehicles are driving at high speeds and passing through bumpy roads, the battery module may be subjected to large acceleration shocks. A higher acceleration range (such as 10g) is selected to simulate extreme working conditions to ensure the stability of the module under high stress conditions.

[0103] The detection parameter range corresponding to the frequency is: 10Hz to 2000Hz. It covers a wide frequency range from low frequency to high frequency. The low frequency is used to simulate the low frequency vibration caused by uneven road surface, and the high frequency is used to simulate the high frequency vibration during high-speed driving. Through frequency scanning, the resonant frequency of the battery module is found to prevent resonance damage in actual applications.

[0104] The detection parameter range corresponding to the amplitude is: 0.2mm to 3mm. The value of the amplitude depends on the actual road conditions being simulated. A smaller amplitude (such as 0.2mm) can simulate vibrations under normal road conditions, while a larger amplitude (such as 3mm) can be used to simulate severe bumps and impact vibrations to evaluate the impact resistance of the battery module.

[0105] The detection parameter range for long-term testing is: 1 hour to 8 hours for each frequency / amplitude combination. Electric vehicles usually need to run for a long time, so it is necessary to evaluate the long-term reliability of the battery module in a longer vibration test. Short-term testing (1 hour) is used for preliminary evaluation, while long-term testing (8 hours) is used to simulate the long-term vibration effects under actual working conditions.

[0106] The detection parameter range for temperature is: -20℃ to 60℃. Electric vehicles operate in different climates, so vibration tests need to be performed at different temperatures. Low temperature (-20℃) and high temperature (60℃) tests can simulate vibration behavior in extremely cold and hot environments, respectively, to ensure the stability of battery modules under extreme temperatures.

[0107] The present application also provides a magnetic drive vibration detection method, which is applied to the control processor 110 in the magnetic drive vibration detection system 100. Figure 7 As shown, the method includes the following steps 701 to 702.

[0108] Step 701: Generate a plurality of different control parameters, and adjust the current of the electromagnetic coil according to the control parameters to generate a plurality of corresponding working magnetic fields at the detection station.

[0109] Step 702: Acquire position data of the detection workpiece in the working magnetic field, and generate a vibration detection result of the detection workpiece according to the position data.

[0110] In the above embodiment, the specific implementation of the magnetic drive vibration detection method is basically consistent with the specific implementation of the above magnetic drive conveying system and its beneficial effects, which will not be repeated here.

[0111] The present application also provides an electronic device, including:

[0112] at least one memory;

[0113] at least one processor;

[0114] at least one program;

[0115] The program is stored in the memory, and the processor executes the at least one program to implement the magnetic drive vibration detection method of the present application. The electronic device can be any intelligent terminal including a mobile phone, a tablet computer, a personal digital assistant (PDA), a car computer, etc.

[0116] See also Figure 8 , Figure 8 The hardware structure of an electronic device of another embodiment is illustrated, and the electronic device includes:

[0117] The processor 801 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of the present application;

[0118] The memory 802 can be implemented in the form of ROM (Read Only Memory), static storage device, dynamic storage device or RAM (Random Access Memory). The memory 802 can store operating systems and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 802, and the processor 801 is used to call and execute the magnetic drive vibration detection method of the embodiment of this application;

[0119] Input / output interface 803, used to implement information input and output;

[0120] The communication interface 804 is used to realize the communication interaction between the device and other devices. The communication can be realized through a wired manner (such as USB, network cable, etc.) or a wireless manner (such as mobile network, WIFI, Bluetooth, etc.);

[0121] A bus 805 that transmits information between the various components of the device (e.g., the processor 801, the memory 802, the input / output interface 803, and the communication interface 804);

[0122] The processor 801 , the memory 802 , the input / output interface 803 and the communication interface 804 are connected to each other in communication within the device via a bus 805 .

[0123] An embodiment of the present application also provides a storage medium, which is a computer-readable storage medium. The storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned magnetic drive vibration detection method is implemented.

[0124] The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely disposed relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0125] The embodiments described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0126] Those skilled in the art will appreciate that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0127] The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0128] Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.

[0129] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0130] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0131] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. The mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0132] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0133] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0134] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including multiple instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), disk or optical disk and other media that can store programs.

[0135] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. A magnetically driven vibration detection system, characterized in that: include: A magnetically driven vibration component and a control processor, wherein the magnetically driven vibration component includes an electromagnetic coil, and the control processor is connected to the electromagnetic coil; The electromagnetic coil is used to generate a magnetic field at a detection station when powered on, and the detection station is used to place a detection workpiece; The control processor is used to generate a plurality of different control parameters, and the control parameters are used to adjust the current in the electromagnetic coil to generate a plurality of corresponding working magnetic fields at the detection station; The control processor is further used to obtain position data of the detection workpiece in the working magnetic field, and generate a vibration detection result of the detection workpiece according to the position data.

2. The magnetic drive vibration detection system according to claim 1, characterized in that: When the control processor generates a plurality of different control parameters, the steps include: Acquire the workpiece type of the inspected workpiece, and determine at least one inspection parameter type based on the workpiece type, each of the inspection parameter types including a corresponding inspection parameter range; The coil parameters of the electromagnetic coil are acquired, and a plurality of the control parameters are generated based on the detection parameter range and the coil parameters.

3. The magnetic drive vibration detection system according to claim 2, characterized in that: The detection parameter type includes at least one of acceleration, frequency response, displacement, amplitude, resonant frequency, stress, temperature and long-time test.

4. The magnetic drive vibration detection system according to claim 3, characterized in that: When the inspection workpiece is a power battery, the inspection parameter types include acceleration, stress and temperature.

5. The magnetic drive vibration detection system according to claim 2, characterized in that: When the control processor generates the control parameter based on the detection parameter range and the coil parameter, the steps include: Obtaining the mass of the detected workpiece and the magnetic field sensing area; A plurality of control parameters corresponding to the detection parameter range are generated based on the workpiece mass, the magnetic drive induction area, and the coil parameters.

6. The magnetic drive vibration detection system according to claim 5, characterized in that: Also included is a function detection component, the function detection component is connected to the control processor; The function detection component is used to detect the preset function of the detection workpiece, obtain the function detection data of the detection workpiece, and send the function detection data to the control processor; When the control processor generates the vibration detection result of the detection workpiece according to the position data, the execution steps include: A vibration detection result of the detection workpiece is obtained according to the position data and the functional detection data.

7. The magnetic drive vibration detection system according to claim 6, characterized in that: After the control processor obtains the vibration detection result of the detection workpiece according to the position data and the function detection data, the control processor further performs the following steps: Generate static magnetic levitation control parameters based on the workpiece mass, the magnetic drive induction area and the coil parameters; Adjusting the control parameter of the current in the electromagnetic coil based on the static magnetic levitation control parameter so that the inspection workpiece approaches being stationary on the inspection station; The static change time and the fluctuation amplitude of the detection workpiece are obtained, and the vibration detection result is updated based on the static change time, the fluctuation amplitude and the static magnetic levitation control parameter.

8. The magnetically driven vibration detection system according to claim 2, characterized in that: The system is also provided with a detection sensor, and the detection sensor is connected to the control processor; The detection sensor is at least used to obtain the position data and transmit the position data to the control processor.

9. The magnetically driven vibration detection system according to claim 5, characterized in that: The system is provided with a detection platform at the detection station, the detection platform is provided with an induction magnet, and the magnetic field induction area is the plane orthographic projection of the induction magnet perpendicular to the magnetic flux lines of the working magnetic field.

10. The magnetic drive vibration detection system according to claim 5, characterized in that: The detection workpiece includes a magnet assembly, and the magnetic field sensing area is a plane orthographic projection of the magnet assembly perpendicular to the magnetic flux lines of the working magnetic field.

11. The magnetic drive vibration detection system according to claim 1, characterized in that: The system is also provided with an adaptive fixture, and the adaptive fixture is used to fix the inspection workpiece located at the inspection station.

12. A magnetic drive vibration detection method, characterized in that: The method is applied to the magnetic drive vibration detection system according to any one of claims 1 to 11, and the method comprises: generating a plurality of different control parameters, and adjusting the current of the electromagnetic coil according to the control parameters to generate a plurality of corresponding working magnetic fields at the detection station; The position data of the detection workpiece in the working magnetic field is acquired, and the vibration detection result of the detection workpiece is generated according to the position data.

13. An electronic device, characterized in that: It comprises a memory and a processor, the memory stores a computer program, and the processor implements the magnetic drive vibration detection method according to claim 12 when executing the computer program.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the magnetic drive vibration detection method according to claim 12 is implemented.

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