Battery testing device

Abstract

The utility model relates to a battery testing device. A mobile rack is provided with an accommodating space for placing a battery; the test assembly comprises a driving mechanism, a code scanning mechanism used for scanning a code to obtain battery test information, and a test module used for carrying out data test on a battery. The driving mechanism is mounted on the movable rack, is connected with the test module and is used for adjusting the test module to a target position so as to be in butt joint with the battery; the man-machine interface control cabinet is connected with the code scanning mechanism, the driving mechanism and the test module, and is used for controlling the driving mechanism and the test module to work according to the battery test information, and uploading the data obtained by the test. According to the invention, the rapid positioning and testing of the battery can be realized, the battery testing efficiency is improved, and the influence of human factors on the testing result is reduced because the probe does not need to be manually held for testing, so that the stability of the testing condition can be ensured, and the testing precision and reliability are improved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a battery testing device. Background Technology

[0002] In the production and processing of power batteries, performance issues such as voltage accuracy, gear misalignment, and poor internal resistance exist, requiring rework. Meanwhile, temperature differences in batteries under different environments affect testing accuracy. Traditional testing methods, due to fixed equipment and complex processes, are difficult to meet the needs of rapid testing. Therefore, there is an urgent need for portable, efficient, and accurate testing vehicles to improve efficiency and accuracy.

[0003] Current technical challenges include:

[0004] 1. Poor portability. Manually carrying the instrument for testing is inefficient, increases the burden, and affects the stability of the test.

[0005] 2. Inefficient data recording and uploading. Manually entering data into the Production Management System (MES) is time-consuming, labor-intensive, and prone to errors, affecting data accuracy and timeliness.

[0006] 3. Probe durability and accuracy issues. Ordinary probes are prone to wear, reducing test repeatability and accuracy, and increasing costs.

[0007] 4. The testing method is unstable. Manual handheld probe testing is affected by hand gestures and ambient temperature, making it difficult to ensure stable testing conditions, which affects accuracy and reliability.

[0008] 5. Limited testing capabilities. Traditional testing equipment cannot simultaneously test cell thickness, requiring a separate thickness measurement device. Utility Model Content

[0009] This application provides a battery testing device to solve the problem of poor testing stability in related technologies.

[0010] Firstly, a battery testing apparatus is provided, comprising:

[0011] A mobile rack with storage space for placing batteries;

[0012] The testing component includes a drive mechanism, a barcode scanning mechanism for scanning to obtain battery test information, and a test module for performing data testing on the battery; the drive mechanism is mounted on the mobile frame, the drive mechanism is connected to the test module, and is used to adjust the test module to the target position to mate with the battery;

[0013] The human-machine interface control cabinet is connected to the scanning mechanism, the driving mechanism, and the test module, and is used to control the operation of the driving mechanism and the test module according to the battery test information, as well as to upload the data obtained from the test.

[0014] In some embodiments, the test module includes:

[0015] A test board, located within the containment space, has several probe groups arranged on it, the probe groups including two first probes for measuring internal resistance and voltage;

[0016] The OCV tester is mounted on the mobile frame and connected to the probe group via wires;

[0017] An IR tester is mounted on the mobile frame and connected to the probe group via wires.

[0018] In some embodiments, the drive mechanism includes:

[0019] The first guide rail is mounted on the mobile frame and extends along the X direction.

[0020] The second guide rail is movably mounted on the first guide rail, and its length extends along the Y direction;

[0021] A first driver is connected to the second guide rail and is used to drive the second guide rail to move along the X direction;

[0022] A first lifting assembly is movably mounted on the second guide rail. The first lifting assembly is connected to the test plate and is used to drive the test plate to move along the Z direction.

[0023] The second driver is connected to the first lifting assembly and is used to drive the first lifting assembly to move along the Y direction;

[0024] Wherein, the Z direction is the height direction of the mobile frame, and the X and Y directions are perpendicular to the Z direction.

[0025] In some embodiments, the test component is a full-pallet test component;

[0026] The probe array is distributed in multiple rows and columns on the test board;

[0027] The testing components also include:

[0028] A feeding conveyor belt passes through the receiving space and is used to feed the battery material frame into the receiving space.

[0029] In some embodiments, the test assembly further includes an NG gripper and a split-type lifting mechanism;

[0030] The split-type lifting mechanism is located below the feeding conveyor belt;

[0031] The human-machine interface control cabinet is also connected to the NG gripper and the split-type lifting mechanism. When the test data determines that a battery is defective, the split-type lifting mechanism is controlled to lift the defective battery and the NG gripper is driven to remove it from the battery material frame.

[0032] In some embodiments, the split-type lifting mechanism includes:

[0033] Lifting the base plate;

[0034] Lifting cylinders are arranged in an array on the lifting base plate, and each lifting cylinder is provided with a lifting extension rod at its top.

[0035] In some embodiments, the test component is a single-cell battery test component;

[0036] The probe array is arranged in a row and multiple columns on the test board;

[0037] The testing components also include:

[0038] A compartment located in the containment space, the compartment having a chamber for holding a single battery.

[0039] In some embodiments, the testing component further includes an NG gripper, and the human-machine interface control cabinet is also connected to the NG gripper and is used to drive the NG gripper to remove the battery from the compartment when a non-conforming battery is determined based on the data obtained from the test.

[0040] And / or, a probe pressure detection sensor is provided at the bottom of the compartment, the human-machine interface control cabinet is connected to the probe pressure detection sensor, and is used to receive the pressing force detected by the probe pressure detection sensor, and control the drive mechanism based on the pressing force and the preset pressure range;

[0041] And / or, the compartment is equipped with a proximity light sensor for detecting batteries;

[0042] And / or, the compartment is equipped with a pressureless thickness measuring assembly, the pressureless thickness measuring assembly including a thickness measuring side plate disposed in the compartment and a thickness measuring cylinder disposed on the compartment box, the telescopic rod of the thickness measuring cylinder being connected to the thickness measuring side plate.

[0043] In some embodiments, a movable slide is provided on the first guide rail, the second guide rail is mounted on the slide, and the first driver is connected to the slide;

[0044] The NG gripper includes:

[0045] The third guide rail is mounted on the slide plate and extends along the Y direction.

[0046] A fourth guide rail is movably mounted on the third guide rail;

[0047] The third driver is connected to the fourth guide rail and is used to drive the fourth guide rail to move along the Y direction;

[0048] A gripper assembly, which is movably mounted on the fourth guide rail;

[0049] A fourth actuator, which is connected to the gripper assembly, is used to drive the gripper assembly to move along the Z direction.

[0050] In some embodiments, the mobile rack has two receiving spaces;

[0051] The test components are provided in two sets;

[0052] One of the sets is a whole-pallet test assembly, in which the probe groups are arranged in a multi-row, multi-column array on the test plate; the whole-pallet test assembly also includes a feeding pull belt, which passes through one of the receiving spaces and is used to feed the battery material frame into the receiving space;

[0053] Another set is a single-cell battery testing assembly, whose probe group is distributed in an array of one row and multiple columns on the test board; the single-cell battery testing assembly also includes a compartment, which is located in another of the receiving spaces, and the compartment is provided with a chamber for placing a single battery.

[0054] The beneficial effects of the technical solution provided in this application include:

[0055] The rapid testing cart provided in this application integrates a mobile frame, a drive mechanism, a barcode scanning mechanism, a testing module, and a human-machine interface control cabinet. The testing module can be moved by moving the rapid testing cart, eliminating the need for manual carrying and reducing the workload.

[0056] This application acquires battery test information through a barcode scanner, and then uses a human-machine interface control cabinet to control the drive mechanism, thereby driving the test module to move to the target position and dock with the battery. The test module then performs data testing on the battery. When the barcode scanner acquires the battery test information, it senses the incoming battery and drives the test module to automatically position and test it. Therefore, this application can achieve rapid battery positioning and testing, improving battery testing efficiency. At the same time, since manual handheld probe testing is not required, the influence of human factors on the test results is reduced, thus ensuring stable test conditions and improving test accuracy and reliability.

[0057] After receiving the test data through the human-machine interface control cabinet, this application uploads the test data, such as to the MES system, to achieve real-time data recording and monitoring, improve the accuracy and timeliness of data recording, and support intelligent production management. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0059] Figure 1 A schematic diagram of the battery testing device provided in the embodiments of this application;

[0060] Figure 2 This is a schematic diagram showing the installation positions of the OCV tester and IR tester provided in the embodiments of this application;

[0061] Figure 3 This is another schematic diagram of the battery testing device provided in the embodiments of this application;

[0062] Figure 4 This is a schematic diagram of the installation position of the split-type lifting mechanism provided in the embodiments of this application;

[0063] Figure 5 A schematic diagram of a test board provided in an embodiment of this application;

[0064] Figure 6 This is a schematic diagram of another test board provided in an embodiment of this application;

[0065] Figure 7 This is a schematic diagram of a split-type lifting mechanism provided in an embodiment of this application;

[0066] Figure 8 This is a schematic diagram of the split-type lifting mechanism provided in the embodiments of this application during lifting;

[0067] Figure 9 A schematic diagram of a storage box provided in an embodiment of this application;

[0068] Figure 10 This is a schematic diagram of another perspective of the storage box provided in an embodiment of this application;

[0069] Figure 11 This is a schematic diagram of a probe pressure detection sensor provided in an embodiment of this application.

[0070] In the diagram: 1. Mobile frame; 2. Feeding conveyor belt; 3. Test module; 4. Drive mechanism; 5. Battery material frame; 6. Battery; 7. Scanning mechanism; 8. Human-machine interface control cabinet; 9. Test board; 10. First probe; 11. OCV tester; 12. IR tester; 13. Second probe; 14. First guide rail; 15. Second guide rail; 16. First lifting assembly; 17. NG gripper; 18. Split-type lifting mechanism; 19. Slide plate; 20. Third guide rail; 21. 21. Fourth guide rail; 22. Gripper assembly; 23. Lifting base plate; 24. Lifting cylinder; 25. Lifting extension rod; 26. Compartment box; 27. Probe pressure detection sensor; 28. Proximity light sensor; 29. ​​Thickness measuring side plate; 30. Thickness measuring cylinder; 31. Roller; 32. Human-machine interface touch screen; 33. Human-machine interface start button; 34. Human-machine interface emergency stop button; 35. Three-color alarm light; 36. Single cell battery test start button; 37. Single cell battery test emergency stop button. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0072] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, this application embodiment provides a battery testing device, which includes a mobile frame 1, testing components, and a human-machine interface control cabinet 8. The mobile frame 1 serves as a mounting carrier and is equipped with casters 31 at its bottom, allowing the mobile frame 1 to carry the testing components for movement without requiring manual handling of instruments (such as Agilent 34461A and HIOKI BT3562), thus reducing the workload. The mobile frame 1 has a receiving space for placing a battery 6 for testing. The testing components include a drive mechanism 4, a barcode scanning mechanism 7 for scanning to obtain battery test information, and a test module 3 for performing data testing on the battery 6. The drive mechanism 4 is mounted on the mobile frame 1 and connected to the test module 3, and is used to adjust the test module 3 to a target position to align with the battery 6. The human-machine interface control cabinet 8 is connected to the barcode scanning mechanism 7, the drive mechanism 4, and the test module 3, and is used to control the operation of the drive mechanism 4 and the test module 3 according to the battery test information, and to upload the data obtained from the test.

[0073] The rapid testing cart provided in this application integrates a mobile frame, a drive mechanism, a barcode scanning mechanism, a testing module, and a human-machine interface control cabinet. The testing module can be moved by moving the rapid testing cart, eliminating the need for manual carrying and reducing the workload.

[0074] This application acquires battery test information through a barcode scanner, and then uses a human-machine interface control cabinet to control the drive mechanism, thereby driving the test module to move to the target position and dock with the battery. The test module then performs data testing on the battery. When the barcode scanner acquires the battery test information, it senses the incoming battery and drives the test module to automatically position and test it. Therefore, this application can achieve rapid battery positioning and testing, improving battery testing efficiency. At the same time, since manual handheld probe testing is not required, the influence of human factors on the test results is reduced, thus ensuring stable test conditions and improving test accuracy and reliability.

[0075] After receiving the test data through the human-machine interface control cabinet 8, this application uploads the test data, such as to the MES system, to realize real-time data recording and monitoring, improve the accuracy and timeliness of data recording, and support intelligent production management.

[0076] It is understood that the battery test information obtained by scanning the code in this application may include battery size information, battery test condition information, etc.

[0077] It is understandable that, for batteries of different sizes, in order to ensure that the test module 3 can be successfully connected to the battery, this application pre-sets the target positions that the test module 3 needs to move to on the human-machine interface control cabinet 8, so that the test module 3 can be controlled to move to the corresponding target position according to the battery size information obtained by scanning the code, thereby successfully connecting.

[0078] By using this method of pre-setting different target positions, this application can be applied to testing batteries of different sizes.

[0079] To perform testing on battery 6, see [link / reference]. Figure 2 , Figure 5 and Figure 6 As shown, as an example, the test module 3 includes a test board 9, an OCV tester 11, and an IR tester 12.

[0080] The test board 9 is located within the containment space, and several probe groups are arranged on the test board 9. The probe groups include two first probes 10 for measuring internal resistance and voltage. Since the battery 6 has a positive and a negative electrode, the two first probes 10 are respectively connected to the positive and negative electrodes, thereby realizing the testing of the open circuit voltage and internal resistance of the battery 6. The OCV tester 11 is mounted on the mobile frame 1 and connected to the probe groups through wires. The IR tester 12 is mounted on the mobile frame 1 and connected to the probe groups through wires.

[0081] In this example, the number of probe groups can be determined based on the number of batteries 6 in the battery pack to be tested, for example... Figure 5 Two rows and eight columns, for example... Figure 6 The middle row has eight columns.

[0082] Understandably, since batteries of different sizes may have different spacing between their positive and negative electrodes, as well as different spacing between adjacent batteries, multiple different probe holes are provided on the test board 9. The first probe 10 and the second probe 13 (described later) can be detachably installed on the probe holes. During testing, the probe holes can be selected in advance on the test board 9 according to the size of the battery to be tested, and the corresponding first probe 10 and second probe 13 can be installed.

[0083] Alternatively, test boards 9 with different probe spacings can be prepared in advance according to different battery sizes. During testing, the corresponding test board 9 can be selected in advance and installed on the drive mechanism 4 according to the battery size to be tested.

[0084] The OCV tester 11 is connected to the first probe 10 of all probe groups simultaneously, enabling simultaneous measurement of the open-circuit voltage of multiple batteries 6. Similarly, the IR tester 12 is connected to the first probe 10 of all probe groups simultaneously, enabling simultaneous measurement of the internal resistance of multiple batteries 6.

[0085] As can be seen, using this example can improve battery testing efficiency.

[0086] It is understood that the OCV tester 11 in this application can be an Agilent 34461A OCV tester, and the IR tester 12 can be a HIOKI BT3562 IR tester, which can accurately measure the open-circuit voltage and internal resistance of the battery and ensure the accuracy of the test data.

[0087] The data obtained from the OCV tester 11 and the IR tester 12 can be sent to the human-machine interface control cabinet 8.

[0088] The probe group also includes a second probe 13 for testing the temperature of the battery 6 casing. The second probe 13 monitors the temperature of the battery 6 in real time and sends the data to the human-machine interface control cabinet 8. The purpose of temperature detection is to eliminate the influence of temperature differences on the test results.

[0089] The second probe 13 can be a commonly used sensor such as a PT100 temperature sensor.

[0090] See Figure 1 and Figure 3 As shown, as an example, the drive mechanism 4 includes a first guide rail 14, a second guide rail 15, a first driver, a first lifting component 16, and a second driver. The height direction of the mobile frame 1 is taken as the Z direction, and the plane containing the length and width of the mobile frame 1 is taken as the XY plane to determine the X and Y directions, so that the X and Y directions are perpendicular to the Z direction.

[0091] The first guide rail 14 is mounted on the mobile frame 1 and extends along the X direction. The second guide rail 15 is movably disposed on the first guide rail 14 and extends along the Y direction. The first driver is connected to the second guide rail 15 and is used to drive the second guide rail 15 to move along the X direction on the first guide rail 14. The first lifting assembly 16 is movably disposed on the second guide rail 15. The first lifting assembly 16 is connected to the test plate 9 and is used to drive the test plate 9 to move along the Z direction. The second driver is connected to the first lifting assembly 16 and is used to drive the first lifting assembly 16 to move along the Y direction on the second guide rail 15.

[0092] According to the battery test information obtained by the barcode scanning mechanism 7, the human-machine interface control cabinet 8 controls the first driver to drive the second guide rail 15 to move on the first guide rail 14 according to the corresponding target position, controls the second driver to drive the first lifting component 16 to move on the second guide rail 15, and controls the first lifting component 16 to drive the test plate 9 to move along the Z direction so that the test plate 9 reaches the target position, thereby docking with the battery 6 and controlling the test module 3 to perform data measurement on the battery 6.

[0093] This application utilizes a human-machine interface control cabinet 8 to control the operation of corresponding devices, ultimately enabling the test board 9 to connect with the battery 6 for data testing. This reduces the impact of human factors on test results, achieves rapid and accurate testing of battery performance, and improves production efficiency and testing accuracy.

[0094] It is understood that the first driver, the second driver, and the first lifting assembly 16 in this application can be finished products, such as motors, cylinders, ball screw pairs, etc.

[0095] To enable testing of an entire tray of batteries, as an example, see... Figure 3 , Figure 4 and Figure 5 As shown, the test assembly is a whole-tray test assembly, and the probe group is distributed in a multi-row, multi-column array on the test plate 9; the test assembly also includes a feeding pull belt 2, which passes through the receiving space and is used to feed the battery material frame 5 into the receiving space.

[0096] In this example, the battery frame 5 can simultaneously hold multiple rows and columns of batteries 6, and the battery frame 5 and the loaded batteries 6 are sent into the receiving space by the feeding pull belt 2. The scanning mechanism scans the identification code (such as barcode or QR code) on the battery frame 5 to obtain the battery test information.

[0097] By using the feeding conveyor belt 2 to feed the batteries 6, the testing efficiency of the entire tray of batteries 6 can be further improved.

[0098] It is understandable that the aforementioned feeding belt 2 can be a conveyor roller conveyor.

[0099] When testing a whole tray of batteries, defective or substandard products may appear and need to be separated from the good products. For this purpose, please refer to [link / reference needed]. Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the test assembly also includes an NG gripper 17 and a split-type lifting mechanism 18; the split-type lifting mechanism 18 is located below the feeding belt 2, and its lifting path passes through the feeding belt 2.

[0100] The human-machine interface control cabinet 8 is also connected to the NG gripper 17 and the split-type lifting mechanism 18. When the test data determines that a non-conforming battery 6 is found, the split-type lifting mechanism 18 is controlled to lift the non-conforming battery 6 and drive the NG gripper 17 to remove it from the battery material frame 5.

[0101] In this example, since the battery material frame 5 is not divided, but the batteries 6 are directly stacked, the gap between the batteries 6 is small. Therefore, the split lifting mechanism 18 is used to lift them to facilitate the NG gripper 17 to grab them.

[0102] In this example, a qualified threshold is preset on the human-machine interface control cabinet 8. The data obtained from the test is compared with the qualified threshold. If it exceeds the qualified threshold, it indicates that the battery 6 is unqualified. At this time, the unqualified battery 6 is lifted by the split lifting mechanism 18, and then the unqualified battery 6 is removed from the battery material frame 5 by the NG gripper 17 to ensure product quality.

[0103] For example, if the test data includes temperature, open-circuit voltage, and internal resistance, then it is determined whether the temperature is within the temperature threshold range, whether the open-circuit voltage is within the voltage threshold range, and whether the internal resistance is within the internal resistance threshold range. If all of these are true, the battery is qualified; otherwise, the battery is considered unqualified.

[0104] The above method judges a product as qualified based on the fact that the temperature, open-circuit voltage, and internal resistance are all within the corresponding threshold ranges. Alternatively, depending on the actual needs, it can be judged as qualified if one or two of the data are within the corresponding threshold ranges.

[0105] See Figure 7 and Figure 8 As shown, the split-type lifting mechanism 18 includes a lifting base plate 23 and lifting cylinders 24. The lifting cylinders 24 are installed in an array on the lifting base plate 23, and each lifting cylinder 24 is provided with a lifting extension rod 25 at its top.

[0106] Each battery 6 in the battery material frame 5 corresponds to at least one lifting extension rod 25. The placement position of the battery 6 in the battery material frame 5 is associated with the lifting extension rod 25 and the lifting cylinder 24. When the battery 6 is unqualified, the human-machine interface control cabinet 8 can locate the position of the unqualified battery 6 and then control the corresponding lifting cylinder 24 to work. The unqualified battery 6 is lifted by the lifting extension rod 25, and then the NG gripper 17 is controlled to remove the unqualified battery 6 from the battery material frame 5.

[0107] To enable testing of a single battery, see, as an example, [link to example]. Figure 1 and Figure 6 As shown, the test assembly is a single-cell battery test assembly; the probe group is arranged in a row and multiple columns on the test board 9; the test assembly also includes a compartment 26, which is located in the containment space, and the compartment 26 is provided with a chamber for placing a single battery 6.

[0108] In this example, a single battery 6 can be manually inserted into the compartment of the box 26. Each battery 6 has an identification code (such as a barcode or QR code). By scanning the identification code on the battery 6 using a scanning mechanism, the battery test information can be obtained.

[0109] When testing individual batteries, defective or substandard products may occur and need to be separated from the good products. For this purpose, please refer to [link / reference needed]. Figure 1 As shown, the testing component also includes an NG gripper 17; the human-machine interface control cabinet 8 is also connected to the NG gripper 17 and is used to drive the NG gripper 17 to remove the battery 6 from the compartment 26 when the unqualified battery 6 is determined based on the test data.

[0110] In this example, since the compartment 26 is divided by partitions to form a compartment, after the battery is placed in the compartment, the gap between the batteries 6 is large due to the presence of the partitions. Therefore, there is no need to design a separate lifting mechanism 18 for lifting. Instead, the NG gripper 17 can be used to grab the batteries directly. At the same time, eliminating the separate lifting mechanism 18 can reduce the overall size of the speed testing vehicle and reduce the space occupied.

[0111] In this example, a qualified threshold is preset on the human-machine interface control cabinet 8. The data obtained from the test is compared with the qualified threshold. If the data exceeds the qualified threshold, it indicates that the battery 6 is unqualified. At this time, the unqualified battery 6 is removed from the compartment 26 using the NG gripper 17 to ensure product quality.

[0112] For example, if the test data includes temperature, open-circuit voltage, and internal resistance, then determine whether the temperature is within the temperature threshold range, whether the open-circuit voltage is within the voltage threshold range, and whether the internal resistance is within the internal resistance threshold range. If all of these are true, the battery is qualified; otherwise, the battery can be considered unqualified.

[0113] The above method judges a product as qualified based on the fact that the temperature, open-circuit voltage, and internal resistance are all within the corresponding threshold ranges. Alternatively, depending on the actual needs, it can be judged as qualified if one or two of the data are within the corresponding threshold ranges.

[0114] See Figure 1 and Figure 3 As shown, a movable slide plate 19 is provided on the first guide rail 14, and the second guide rail 15 is mounted on the slide plate 19. The first driver is connected to the slide plate 19 to indirectly drive the second guide rail 15 to move. The NG gripper 17 includes a third guide rail 20, a fourth guide rail 21, a third driver, a gripper assembly 22, and a fourth driver. The third guide rail 20 is mounted on the slide plate 19, and its length extends along the Y direction. The third guide rail 20 and the second guide rail 15 are mounted together on the slide plate 19 using a first driver. By driving the two to move synchronously, the number of actuators required can be reduced, further optimizing the space occupied by the speed testing trolley. The fourth guide rail 21 is movably mounted on the third guide rail 20, and its length extends along the Z direction. The third actuator is connected to the fourth guide rail 21 and is used to drive the fourth guide rail 21 to move along the Y direction on the third guide rail 20. The gripper assembly 22 is movably mounted on the fourth guide rail 21, and the fourth actuator is connected to the gripper assembly 22 and is used to drive the gripper assembly 22 to move along the Z direction on the fourth guide rail 21.

[0115] When battery 6 is defective, the human-machine interface control cabinet 8 can locate the position of the defective battery 6, control the first driver to move the third guide rail 20 on the first guide rail 14 to adjust the X-axis position, control the third driver to move the fourth guide rail 21 on the third guide rail 20 to adjust the Y-axis position, control the fourth driver to move the gripper assembly 22 on the fourth guide rail 21 to adjust the Z-axis position, and finally reach the position of the defective battery 6, and control the gripper assembly 22 to clamp the defective battery 6.

[0116] It is understood that the third and fourth actuators in this application can be finished products, such as motors, cylinders, ball screw pairs, etc., and the aforementioned gripper assembly 22 can be finished products to clamp or release the battery 6.

[0117] Furthermore, the scanning mechanism 7 is disposed on the mobile frame 1 or on the gripper assembly 22.

[0118] For example, as an example, in order to optimize the overall structure of the speed test vehicle, for the whole pallet test component, the scanning mechanism 7 is set on the mobile frame 1, and for the single battery test component, the scanning mechanism 7 is set on the gripper assembly 22.

[0119] See Figure 10 and Figure 11 As shown, a probe pressure detection sensor 27 is installed at the bottom of the chamber. The human-machine interface control cabinet 8 receives the pressing force detected by the probe pressure detection sensor 27 in real time, thereby monitoring the pressing amount between the first probe 10 on the test board 9 and the positive and negative terminals of the battery. By comparing the detected pressing force with the preset pressure range, the human-machine interface control cabinet 8 can control the drive mechanism 4 in real time to control the pressing force and thus the pressing amount, automatically adjusting the pressing force of the first probe to ensure good contact between the first probe and the positive and negative terminals of the battery during the test.

[0120] See Figure 9 and Figure 10 As shown, a proximity light sensor 28 for detecting battery 6 is installed in the compartment. The proximity light sensor 28 is connected to the human-machine interface control cabinet 8. The presence of battery 6 in the compartment can be determined based on the proximity light sensor 28.

[0121] See Figure 9 As shown, the chamber is equipped with a pressureless thickness measuring component. The pressureless thickness measuring component includes a thickness measuring side plate 29 disposed in the chamber and a thickness measuring cylinder 30 disposed on the chamber box 26. The telescopic rod of the thickness measuring cylinder 30 is connected to the thickness measuring side plate 29.

[0122] In this application, the principle of pressureless thickness measurement is as follows:

[0123] The two opposing inner walls inside the compartment are referred to as the first inner wall and the second inner wall. When the thickness measuring side plate 29 is in the initial position, one of its walls is attached to the first inner wall, and the other wall is used for thickness measurement and is referred to as the thickness measuring wall. When the thickness measuring side plate 29 is in the initial position, the distance between the thickness measuring wall and the second inner wall is a fixed value that can be measured in advance and is denoted as L0.

[0124] During testing, battery 6 is placed between the thickness-measuring wall and the inner wall of the second compartment, with battery 6 adhering to the inner wall of the second compartment. At this point, the distance between the thickness-measuring wall and battery 6 is L1, and L1 < L0. The thickness-measuring cylinder 30 is activated, driving the thickness-measuring side plate 29 to move from its initial position until the thickness-measuring wall of the side plate 29 abuts against battery 6 and continues to move. During this process of abutting against battery 6 and continuing to move, the thickness-measuring cylinder 30 is simultaneously depressurized until the total displacement is L2, at which point all pressure is released, and L1 < L2 < L0. At this point, under the restoring force of battery 6, the thickness-measuring side plate 29 is pushed back. After the natural pushing ends, the distance L3 that the thickness-measuring side plate 29 has moved is recorded. Therefore, the thickness of battery 6 is L0 - L3.

[0125] Depressurization during the holding process can reduce the impact of the holding process on the thickness of battery 6.

[0126] During the OCV test, pressureless thickness measurement is performed simultaneously to monitor the battery thickness in real time, providing technical support for the consistency of battery pack thickness.

[0127] Further, see Figure 1 and Figure 3 As shown, the mobile frame 1 has two receiving spaces, and the test components are provided in two sets. One set is a full-pallet test component, whose probe groups are arranged in a multi-row, multi-column array on the test plate 9. The full-pallet test component also includes a feeding pull belt 2, which passes through one of the receiving spaces and is used to feed the battery frame 5 into the receiving space. The other set is a single-cell test component, whose probe groups are arranged in a row, multi-column array on the test plate 9. The single-cell test component also includes a compartment 26, which is located in the other receiving space. The compartment 26 is provided with a compartment for placing a single battery 6.

[0128] This application highly integrates the rapid testing vehicle, reducing space occupation, while supporting separate and synchronous testing of individual or whole tray batteries, meeting the testing needs of different production scenarios.

[0129] The HMI control cabinet 8 has a HMI touch screen 32, which is configured to have a switch button for selecting individual battery testing and whole tray battery testing. The HMI control cabinet 8 is also equipped with a HMI start button 33 and a HMI emergency stop button 34. Pressing the HMI start button 33 will start the speed test trolley. When a fault occurs, the HMI control cabinet 8 will control the three-color alarm light 35 on the mobile frame 1 to sound an alarm, and pressing the HMI emergency stop button 34 will stop the emergency.

[0130] In addition, for single-cell battery testing, there are two single-cell battery test start buttons 36 and one single-cell battery test emergency stop button 37. After the single-cell battery test, the single-cell battery test can only be started by pressing both single-cell battery test start buttons 36 at the same time. In case of emergency, the single-cell battery test emergency stop button 37 can be pressed directly to protect the product and personal safety.

[0131] During testing, in the preparation phase, the battery to be tested (single cell or entire tray) is securely placed in the receiving space of the battery testing device. In the test initiation phase, the user selects either single cell testing or entire tray testing on the HMI touchscreen 32. For example, if performing single cell testing, the first touch area is selected for control; if performing entire tray testing, the second touch area is selected. After the test is completed, the HMI control cabinet 8 automatically uploads the test data to the MES system. The probes automatically reset, preparing for the next test. Finally, the battery is removed.

[0132] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A battery testing device, characterized in that, It includes: Mobile rack (1) having a storage space for placing batteries (6); The test assembly includes a drive mechanism (4), a barcode scanning mechanism (7) for scanning to obtain battery test information, and a test module (3) for performing data tests on the battery (6); the drive mechanism (4) is mounted on the mobile frame (1), the drive mechanism (4) is connected to the test module (3), and is used to adjust the test module (3) to the target position to connect with the battery (6); The human-machine interface control cabinet (8) is connected to the scanning mechanism (7), the driving mechanism (4) and the test module (3), and is used to control the driving mechanism (4) and the test module (3) to work according to the battery test information, and to upload the data obtained from the test.

2. The battery testing apparatus as described in claim 1, characterized in that, The test module (3) includes: Test board (9), located within the containment space, on which several probe groups are arranged, the probe groups including two first probes (10) for measuring internal resistance and voltage; The OCV tester (11) is mounted on the mobile frame (1) and connected to the probe group via wires; An IR tester (12) is mounted on the mobile frame (1) and connected to the probe group via wires.

3. The battery testing apparatus as described in claim 2, characterized in that, The drive mechanism (4) includes: A first guide rail (14) is mounted on the mobile frame (1) and its length extends along the X direction; The second guide rail (15) is movably disposed on the first guide rail (14) and its length extends along the Y direction; A first driver is connected to the second guide rail (15) and is used to drive the second guide rail (15) to move along the X direction; A first lifting assembly (16) is movably mounted on the second guide rail (15). The first lifting assembly (16) is connected to the test plate (9) and is used to drive the test plate (9) to move along the Z direction. The second driver is connected to the first lifting assembly (16) and is used to drive the first lifting assembly (16) to move along the Y direction; Wherein, the Z direction is the height direction of the mobile frame (1), and the X and Y directions are perpendicular to the Z direction.

4. The battery testing apparatus as described in claim 3, characterized in that: The test component is a full-pallet test component; The probe array is distributed in multiple rows and columns on the test plate (9); The testing components also include: The feeding conveyor belt (2) passes through the receiving space and is used to feed the battery material frame (5) into the receiving space.

5. The battery testing apparatus as described in claim 4, characterized in that: The test assembly also includes an NG gripper (17) and a split-type lifting mechanism (18); The split-type lifting mechanism (18) is located below the feeding conveyor belt (2); The human-machine interface control cabinet (8) is also connected to the NG gripper (17) and the split lifting mechanism (18), and is used to control the split lifting mechanism (18) to lift the unqualified battery (6) when the unqualified battery (6) is determined according to the data obtained from the test, and to drive the NG gripper (17) to take it out from the battery material frame (5).

6. The battery testing apparatus as described in claim 5, characterized in that, The split-type lifting mechanism (18) includes: Lifting the base plate (23); Lifting cylinders (24) are arranged in an array on the lifting base plate (23), and each lifting cylinder (24) is provided with a lifting extension rod (25) at the top.

7. The battery testing apparatus as described in claim 3, characterized in that: The test component is a single-cell battery test component; The probe array is arranged in a row and multiple columns on the test plate (9); The testing components also include: A compartment (26) is located in the containment space, and the compartment (26) is provided with a compartment for placing a single battery (6).

8. The battery testing apparatus as described in claim 7, characterized in that: The testing component also includes an NG gripper (17), and the human-machine interface control cabinet (8) is also connected to the NG gripper (17) and is used to drive the NG gripper (17) to be taken out of the compartment (26) when the unqualified battery (6) is determined based on the data obtained from the test. And / or, a probe pressure detection sensor (27) is provided at the bottom of the compartment, the human-machine interface control cabinet (8) is connected to the probe pressure detection sensor (27) and is used to receive the pressing force detected by the probe pressure detection sensor (27), and control the drive mechanism (4) based on the pressing force and the preset pressure range; And / or, the compartment is provided with a proximity light sensor (28) for detecting the battery (6); And / or, the compartment is equipped with a pressureless thickness measuring component, the pressureless thickness measuring component includes a thickness measuring side plate (29) disposed in the compartment and a thickness measuring cylinder (30) disposed on the compartment box (26), the telescopic rod of the thickness measuring cylinder (30) being connected to the thickness measuring side plate (29).

9. The battery testing apparatus as described in claim 5 or 8, characterized in that: A movable slide plate (19) is provided on the first guide rail (14), the second guide rail (15) is mounted on the slide plate (19), and the first driver is connected to the slide plate (19); The NG gripper (17) includes: The third guide rail (20) is mounted on the slide plate (19) and extends along the Y direction; The fourth guide rail (21) is movably mounted on the third guide rail (20); The third driver is connected to the fourth guide rail (21) and is used to drive the fourth guide rail (21) to move along the Y direction; A gripper assembly (22) is movably mounted on the fourth guide rail (21); A fourth actuator, which is connected to the gripper assembly (22) and is used to drive the gripper assembly (22) to move along the Z direction.

10. The battery testing apparatus as described in claim 3, characterized in that: The mobile rack (1) has two storage spaces; The test components are provided in two sets; One of them is a whole tray test assembly, whose probe group is distributed in a multi-row and multi-column array on the test plate (9); the whole tray test assembly also includes a feeding pull belt (2), which passes through one of the receiving spaces and is used to feed the battery material frame (5) into the receiving space; Another set is a single cell test assembly, whose probe group is distributed in an array of one row and multiple columns on the test plate (9); the single cell test assembly also includes a compartment (26), which is located in another of the containment spaces, and the compartment (26) is provided with a compartment for placing a single cell (6).

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