Battery detection device

Abstract

The utility model belongs to battery technical field discloses a kind of battery detection device, it includes support assembly, length detection component, tab detection component and end face detection component.Support assembly is provided with detection station, and the battery to be measured is transported to detection station.Length detection component, tab detection component and end face detection component are all set on support assembly.Length detection component is located below detection station, for measuring the total length of the battery to be measured;Tab detection component is located above detection station, for measuring the exposed length of the battery to be measured cell tab;End face detection component includes two end face detection pieces separately arranged on the both sides of detection station, and the two end face detection pieces are respectively used to detect the end face of the cell tab on the both sides of the battery to be measured.The battery detection device can detect the size of battery total length, cell tab exposed length and cell tab end face three items simultaneously, with high detection efficiency, and the device has good adaptability and high compatibility.

Description

Technical Field

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

[0002] In the battery production process, improving the consistency of battery products has become an important means to enhance the quality of products. Improving product consistency can be achieved by focusing on two aspects: process control and high-precision and high-accuracy testing.

[0003] Currently, most measurement methods in the battery industry involve manual measurement using vernier calipers or calibration using GO gauges. These two methods have the following problems: ① Manual measurement of battery length, width, tab center distance, and exposed tab adhesive dimensions using vernier calipers is affected by numerous factors, including varying force applied by different people, leading to significant differences in test results and making it impossible to ensure consistency. Furthermore, this method is inefficient and cannot meet the full inspection requirements of high-speed manufacturing lines. ② Calibration using GO gauges is only suitable for scenarios with standardized product dimensions and relatively fixed positions. If the battery production line changes models or positions, testing becomes impossible, and in severe cases, interference and collisions may occur, damaging the battery and measuring mechanism. This testing method has poor adaptability and compatibility, failing to meet usage requirements.

[0004] Therefore, there is an urgent need for a battery testing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a battery testing device that can simultaneously test the dimensions of three items: the total length of the battery, the exposed length of the cell tabs, and the end face of the cell tabs. It has high testing efficiency, good adaptability, and high compatibility, and is suitable for testing various types of batteries.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Battery testing device, including:

[0008] The support component is equipped with a testing station, and the battery to be tested is configured to be transported to the testing station.

[0009] A length detection component is movably mounted on the support component and located below the detection station. The length detection component is used to measure the total length of the battery under test.

[0010] A tab detection assembly is movably mounted on the support assembly and located above the detection station. The tab detection assembly is used to measure the exposed length of the cell tabs of the battery under test.

[0011] An end-face detection assembly is movably mounted on the support assembly and includes two end-face detection components disposed on both sides of the detection station. The two end-face detection components are respectively used to detect the end faces of the cell tabs on both sides of the battery under test.

[0012] Optionally, the end face detection assembly further includes transparent pressure plates. The two transparent pressure plates correspond one-to-one with the two end face detection components and are spaced apart. The transparent pressure plates are disposed between the end face detection components and the battery under test. The two transparent pressure plates can move toward the battery under test respectively to clamp the two ends of the battery under test.

[0013] Optionally, the end face detection assembly further includes a first light source element, with two first light sources corresponding one-to-one with two end face detection elements. The first light source element is disposed on the side of the end face detection element facing the battery under test, and the first light source element is used to provide illumination to the end face of the battery under test.

[0014] Optionally, the first light source is ring-shaped, and the center of both the camera of the end face detection device and the center of the first light source are located on the extension line of the axis of the battery under test.

[0015] Optionally, it also includes two first driving members, which are respectively disposed on both sides of the battery under test and correspond one-to-one with the two transparent pressure plates. The fixed end of the first driving member is disposed on the support assembly, and the output end of the first driving member is connected to the corresponding transparent pressure plate. The two first driving members can drive the two transparent pressure plates to move synchronously toward or away from the battery under test.

[0016] Optionally, the support assembly includes a support base, and the transparent pressure plate is slidably connected to the support base via a first guide rail structure. The extension direction of the first guide rail structure is perpendicular to the end face of the battery under test, and the first driving member can drive the transparent pressure plate to move along the first guide rail structure.

[0017] Optionally, the support assembly includes mounting brackets, two mounting brackets are symmetrically arranged on both sides of the battery under test, two end face detection elements are respectively disposed on the two mounting brackets, and the distance between the two end face detection elements and the corresponding end faces on both sides of the battery under test is equal.

[0018] Optionally, the length detection assembly includes a measuring rod, a displacement detection element, two mounting plates, and two clamping plates. The two mounting plates and two clamping plates correspond one-to-one and are respectively disposed on both sides of the battery under test. The measuring rod and the displacement detection element are respectively disposed on the two mounting plates. The displacement detection element has a compressible and resettable contact on the side facing the measuring rod. The measuring rod and the contact are directly opposite each other. The two mounting plates can move towards the battery under test respectively. When the two clamping plates clamp the two ends of the battery under test, the measuring rod compresses the contact.

[0019] Optionally, the length detection component includes a second driving member, with two second driving members corresponding one-to-one with two mounting plates. The fixed end of the second driving member is disposed on the support component, and the output end of the second driving member is connected to the corresponding mounting plate. The two second driving members can respectively drive the two mounting plates to move synchronously toward or away from the battery under test.

[0020] Optionally, the support assembly includes a support frame, and the tab detection assembly includes a tab detection element, which is movably disposed on the support frame and is vertically aligned with the protruding cell tab on the end face of the battery under test.

[0021] The beneficial effects of this utility model are:

[0022] In the battery testing device provided by this utility model, a support assembly is provided with a testing station. After the battery to be tested is transported to the testing station, the length testing assembly, the tab testing assembly, and the end face testing assembly set on the support assembly can be used to test the battery to be tested respectively. Specifically, the length testing assembly is located below the testing station and is used to measure the total length of the battery to be tested; the tab testing assembly is located above the testing station and is used to measure the exposed length of the cell tabs of the battery to be tested; the end face testing assembly includes two end face testing components respectively disposed on both sides of the testing station, and the two end face testing components are used to test the end faces of the cell tabs on both sides of the battery to be tested.

[0023] In other words, by using the length detection component, the tab detection component, and the end face detection component, the device can simultaneously detect the total length of the battery, the exposed length of the cell tabs, and the end face dimensions of the cell tabs, resulting in high detection efficiency. Furthermore, by adjusting the positions of the length detection component, the tab detection component, and the end face detection component on the support assembly, this battery testing device can be applied to the testing of various battery models, demonstrating good adaptability and high compatibility. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the battery testing device provided in an embodiment of the present invention;

[0026] Figure 2 This is a front view of the battery detection device provided in this embodiment of the utility model;

[0027] Figure 3 This is a first structural schematic diagram of a part of the end face detection component and a part of the length detection component provided in this embodiment of the utility model;

[0028] Figure 4 This is a second structural schematic diagram of a part of the end face detection component and a part of the length detection component provided in this embodiment of the utility model;

[0029] Figure 5 This is a first structural schematic diagram of another part of the end face detection component and another part of the length detection component provided in this embodiment of the utility model;

[0030] Figure 6 This is a second structural schematic diagram of another part of the end face detection component and another part of the length detection component provided in this embodiment of the utility model;

[0031] Figure 7 This is a schematic diagram of the support frame and electrode detection assembly provided in this embodiment of the utility model.

[0032] In the picture:

[0033] 100. Battery to be tested;

[0034] 1. Support assembly; 11. Mounting bracket; 111. First support plate; 112. Second support plate; 12. Support base; 13. Slide plate; 14. Support frame;

[0035] 2. Length detection component; 21. Measuring rod; 22. Displacement detection component; 221. Contact; 23. Mounting plate; 24. Second drive component;

[0036] 3. Electrode detection assembly; 31. Electrode detection component; 32. Second light source component;

[0037] 4. End face inspection assembly; 41. End face inspection component; 42. Transparent pressure plate; 43. First light source component;

[0038] 51. First driving component. Detailed Implementation

[0039] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this utility model, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this utility model, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0047] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0048] This embodiment provides a battery testing device capable of simultaneously detecting three dimensions: the total length of the battery, the exposed length of the cell tabs, and the end face of the cell tabs. Figure 1 and Figure 2 As shown, the battery testing device includes a support assembly 1, a length detection assembly 2, a tab detection assembly 3, and an end face detection assembly 4.

[0049] Specifically, the support assembly 1 is equipped with a testing station, and the battery 100 to be tested is transported to the testing station via a conveying device (such as a conveyor belt). After the battery 100 to be tested is transported to the testing station, the battery 100 to be tested can be tested by the length detection assembly 2, the tab detection assembly 3, and the end face detection assembly 4, which are set on the support assembly 1. Among them, the length detection assembly 2 is located below the testing station and is used to measure the total length of the battery 100 to be tested; the tab detection assembly 3 is located above the testing station and is used to measure the exposed length of the cell tabs of the battery 100 to be tested; the end face detection assembly 4 includes two end face detection elements 41 respectively disposed on both sides of the testing station, and the two end face detection elements 41 are used to detect the end faces of the cell tabs on both sides of the battery 100 to be tested.

[0050] It is understandable that the orientation of the length detection component 2, the tab detection component 3, and the end face detection component 4 relative to the battery under test 100 is relatively fixed, so as to facilitate the detection of the battery and avoid interference between the components during operation, which would affect the detection effect and the normal operation of the device.

[0051] In other words, in this embodiment, the length detection component 2, the tab detection component 3, and the end face detection component 4 can simultaneously detect the total length of the battery, the exposed length of the cell tabs, and the dimensions of the cell tab end face, resulting in high detection efficiency. Furthermore, by adjusting the positions of the length detection component 2, the tab detection component 3, and the end face detection component 4 on the support component 1, this battery detection device can be applied to the detection of various battery models, exhibiting good adaptability and high compatibility. For example, the position of the tab detection component 3 needs to be adjusted according to the diameter (thickness) of the battery 100 under test, and the positions of the length detection component 2 and the end face detection component 4 need to be adjusted according to the length of the battery 100 under test.

[0052] Continue to refer to Figure 1 and Figure 2 The support assembly 1 includes mounting brackets 11, with two mounting brackets 11 symmetrically arranged on both sides of the battery 100 under test. Two end-face detection elements 41 are respectively disposed on the two mounting brackets 11, and the distance between the two end-face detection elements 41 and the corresponding end faces on both sides of the battery 100 under test is equal. In this embodiment, the end-face detection element 41 is preferably an end-face detection CCD camera, which captures images of the end faces of the cell tabs of the battery 100 under test through its camera lens. The end-face detection element 41 is mounted on the mounting brackets 11 via a first support plate 111. By adjusting the position of the first support plates 111 on both sides, the distance between the two end-face detection elements 41 and the end faces on both sides of the battery 100 under test is ensured to be equal, thereby ensuring the accuracy of the images captured by the two end-face detection elements 41.

[0053] Specifically, the end-face detection component 4 also includes transparent pressure plates 42, with two transparent pressure plates 42 corresponding one-to-one with two end-face detection components 41 and spaced apart. The transparent pressure plates 42 are positioned between the end-face detection components 41 and the battery 100 under test. The two transparent pressure plates 42 can move towards the battery 100 under test to clamp both ends of the battery 100. The transparent pressure plates 42 can squeeze and clamp the battery 100 under test, thereby achieving the positioning of the battery 100. Simultaneously, the transparent pressure plates 42 do not affect the imaging of the end-face detection components 41. In this embodiment, the material of the transparent pressure plates 42 includes, but is not limited to, high-strength glass or acrylic.

[0054] Preferably, the shape and size of the transparent pressure plate 42 need to be compatible with the shape and size of the battery cell of the battery 100 under test. It is understood that the end face shape of the battery cell of the battery 100 under test includes, but is not limited to, circles, squares, rhombuses, triangles, or polygons. For ease of explanation, the end face of the battery cell used in the accompanying drawings of this embodiment is circular. Therefore, the transparent pressure plate 42 in this embodiment is circular.

[0055] More specifically, the battery testing device further includes two first driving members 51, which are respectively disposed on both sides of the battery 100 under test and correspond one-to-one with the two transparent pressure plates 42. The fixed end of the first driving member 51 is disposed on the support assembly 1, and the output end of the first driving member 51 is connected to the corresponding transparent pressure plate 42. The two first driving members 51 can respectively drive the two transparent pressure plates 42 to move synchronously toward or away from the battery 100 under test. In this embodiment, the support assembly 1 also includes two support seats 12 and two sliding plates 13, which correspond one-to-one with the support seats 12, sliding plates 13, first driving members 51, and transparent pressure plates 42, and are respectively disposed on both sides of the battery 100 under test. The first driving member 51 is preferably a servo motor. The fixed end of the first driving member 51 is set on the support base 12. The slide plate 13 is slidably connected to the support base 12 through the first guide rail structure. The extension direction of the first guide rail structure is perpendicular to the end face of the battery 100 to be tested. The transparent pressure plate 42 is set on the slide plate 13. The output end of the first driving member 51 is connected to the slide plate 13 through transmission. Thus, the slide plate 13 and the transparent pressure plate 42 can be driven to move along the first guide rail structure by the first driving member 51.

[0056] Optionally, the end face detection assembly 4 further includes a first light source 43, with two first light sources 43 corresponding one-to-one with two end face detection components 41. The first light source 43 is disposed on the side of the end face detection component 41 facing the battery 100 under test, and is mounted on the mounting bracket 11 via a second support plate 112. The first light source 43 can provide illumination to the end face of the battery 100 under test to improve the brightness within the detection range of the battery 100 under test, thereby improving the recognition success rate and imaging effect of the end face detection component 41.

[0057] In this embodiment, the first light source 43 is ring-shaped, and the center of both the camera of the end face detection component 41 and the center of the first light source 43 are located on the extension line of the axis of the battery under test 100. The ring light source can ensure the uniformity of light at the end face of the battery under test 100, reduce shadows, and thus improve the success rate of the end face detection component 41 in capturing images.

[0058] Optionally, such as Figure 1 , Figures 3-6As shown, the length detection assembly 2 includes a measuring rod 21, a displacement detection element 22, two mounting plates 23, and two clamping plates. The two mounting plates 23 and two clamping plates are positioned one-to-one on opposite sides of the battery 100 under test. The measuring rod 21 and the displacement detection element 22 are respectively mounted on the two mounting plates 23. The displacement detection element 22 has a compressible and resettable contact 221 on the side facing the measuring rod 21, and the measuring rod 21 and the contact 221 are directly opposite each other. The two mounting plates 23 can move towards the battery 100 under test. When the two clamping plates clamp the two ends of the battery 100 under test, the measuring rod 21 compresses the contact 221. With this configuration, the total length of the battery 100 under test can be measured.

[0059] Specifically, a preset length is set, which is greater than the total length of the battery 100 under test. In this embodiment, when the end of the measuring rod 21 abuts against the contact 221 of the displacement detection element 22, the preset length is equal to the sum of the length of the measuring rod 21 and the length of the contact 221. As the mounting plates 23 on both sides move toward the battery 100 under test, the end of the measuring rod 21 compresses the contact 221 until the clamps on the mounting plates 23 clamp the two sides of the battery 100 under test, and the mounting plates 23 stop moving. At this time, the total length of the battery 100 under test can be obtained by subtracting the compression distance of the contact 221 from the preset length. Exemplarily, the displacement detection element 22 is a displacement sensor.

[0060] It is understood that in this embodiment, the clamping plate and the transparent pressure plate 42 serve the same purpose: to clamp both sides of the battery 100 to be tested. That is, the clamping plate and the transparent pressure plate 42 can be integrated to simplify the overall structure of the device. In other words, in this embodiment, the two mounting plates 23 are slidably connected to the slide plate 13 via the second guide rail structure. One transparent pressure plate 42 and the measuring rod 21 are mounted on one side of the mounting plate 23, while the other transparent pressure plate 42 and the displacement detection element 22 are mounted on the other side of the mounting plate 23. This arrangement allows for simultaneous detection of the total battery length and the end face of the cell tabs without causing interference between the length detection component 2 and the end face detection component 4, effectively improving detection efficiency.

[0061] More specifically, the length detection component 2 also includes second driving members 24, with two second driving members 24 corresponding one-to-one with two mounting plates 23. The fixed end of the second driving member 24 is disposed on the support component 1, and the output end of the second driving member 24 is connected to the corresponding mounting plate 23. The two second driving members 24 can respectively drive the two mounting plates 23 to move synchronously toward or away from the battery 100 under test. For example, the second driving member 24 can be selected as a driving member capable of linear motion, such as a pen-shaped cylinder. In this embodiment, the cylinder body of the pen-shaped cylinder is disposed on the slide plate 13, and the cylinder rod is connected to the mounting plate 23. By extending and retracting the cylinder rod within the cylinder body, the mounting plate 23, as well as the transparent pressure plate 42, measuring rod 21, and displacement detection member 22 on the mounting plate 23, can be driven to move along the second guide rail structure.

[0062] Continuing, as Figure 1 , Figure 2 and Figure 7 As shown, the support assembly 1 also includes a support frame 14, which is a frame structure mounted on the length detection assembly 2 and the end face detection assembly 4. The tab detection assembly 3 is installed on the top of the support frame 14. By adjusting the position of the tab detection assembly 3 on the support frame 14, the exposed length of the cell tab of the battery 100 under test can be measured.

[0063] Specifically, the tab detection assembly 3 includes a tab detection element 31, which is movably mounted on the support frame 14. The tab detection element 31 is vertically aligned with the protruding cell tab on the end face of the battery under test 100. In this embodiment, the tab detection element 31 is preferably a tab detection CCD camera, which uses its camera lens to capture the length of the exposed portion of the cell tab of the battery under test 100.

[0064] More specifically, the tab detection assembly 3 also includes a second light source 32. The second light source 32 is spaced apart on one side of the tab detection assembly 31, and the second light source 32 can illuminate the battery 100 under test to improve the shooting effect of the tab detection assembly 31.

[0065] Optionally, the battery testing device further includes a control system, which is communicatively connected to the length detection component 2, the tab detection component 3, the end face detection component 4, and the first drive component 51. A positioning detection mechanism is also provided on the support component 1 opposite the testing station, which can send a battery positioning signal to the control system. Based on the received battery positioning signal, the control system can control the actions of the first drive component 51, the length detection component 2, the tab detection component 3, and the end face detection component 4 to detect the total length of the battery 100 under test, the exposed length of the cell tabs, and the end face of the cell tabs. For example, the control system can be a PLC or a microcontroller.

[0066] It should be noted that the battery testing device provided in this embodiment can be used as a standalone device to test batteries; it can also be installed synchronously with other equipment on an automated battery production line to achieve automated control and continuous production of batteries.

[0067] Similarly, the battery testing device can test one battery or multiple batteries simultaneously. Accordingly, the length detection component 2, the tab detection component 3, and the end face detection component 4 correspond one-to-one with the number of batteries 100 to be tested.

[0068] This embodiment also provides a battery testing method, which uses the battery testing device provided in this embodiment to test the battery 100 to be tested. The battery testing method includes the following steps:

[0069] S100, Move the battery to be tested 100 to the testing station.

[0070] Specifically, the battery to be tested 100 can be transported to the testing station via a conveyor belt or other conveying device. After the battery to be tested 100 arrives at its destination, the arrival testing mechanism sends a battery arrival signal to the control system.

[0071] S200 controls the two transparent pressure plates 42 to move toward the battery 100 under test, so as to clamp the two ends of the battery 100 under test.

[0072] Specifically, after receiving the positioning detection signal, the control system controls the two first driving components 51 to operate simultaneously, causing the sliding plates 13 on both sides to move synchronously closer to the battery under test 100. The control system also controls the two second driving components 24 to operate simultaneously, driving the mounting plates 23 on both sides of the battery under test 100 to move synchronously towards the battery under test 100, so as to drive the transparent pressure plate 42, displacement detection component 22 and measuring rod 21 on the mounting plate 23 to move closer to the battery under test 100.

[0073] S300: Measure the total length of the battery under test 100 using the length detection component 2; measure the exposed length of the cell tabs of the battery under test 100 using the tab detection component 3; and detect the end faces of the cell tabs on both sides of the battery under test 100 using the two end face detection components 41.

[0074] Specifically, one second after the second driving component 24 is activated, the control system sends a detection trigger signal. The tab detection component 3 and the end face detection component 4 receive the trigger signal, begin to capture images of visual recognition features, and perform detection. During the movement of the measuring rod 21, the contact 221 of the displacement detection component 22 contacts the measuring rod 21 and is gradually compressed. From the initial contact until the measuring rod 21 stops moving, the contact 221 will form a compression distance. The total length of the battery 100 under test = preset length (fixed value) - compression distance of the contact 221 of the displacement detection component 22.

[0075] S400, after the test is completed and all components are reset, the tested battery 100 is transported to the next station.

[0076] Specifically, after the test is completed, the first driving component 51 returns to its original position, the air rod of the second driving component 24 retracts, and the transparent pressure plate 42, displacement detection component 22, and measuring rod 21 slowly withdraw from the middle to both sides. After they are completely withdrawn, the tested battery 100 enters the next process step.

[0077] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery testing device, characterized in that, include: The support component (1) is provided with a testing station, and the battery to be tested (100) is configured to be transported to the testing station; A length detection component (2) is movably disposed on the support component (1) and located below the detection station. The length detection component (2) is used to measure the total length of the battery (100) to be tested. The tab detection assembly (3) is movably disposed on the support assembly (1) and located above the detection station. The tab detection assembly (3) is used to measure the exposed length of the cell tab of the battery under test (100). The end face detection component (4) is movably disposed on the support component (1) and includes two end face detection components (41) disposed on both sides of the detection station. The two end face detection components (41) are respectively used to detect the end faces of the cell tabs on both sides of the battery under test (100).

2. The battery testing device according to claim 1, characterized in that, The end face detection assembly (4) further includes transparent pressure plates (42). The two transparent pressure plates (42) correspond one-to-one with the two end face detection components (41) and are spaced apart. The transparent pressure plates (42) are disposed between the end face detection components (41) and the battery under test (100). The two transparent pressure plates (42) can move toward the battery under test (100) respectively to clamp the two ends of the battery under test (100).

3. The battery testing device according to claim 2, characterized in that, The end face detection component (4) further includes a first light source (43), with two first light sources (43) corresponding one-to-one with two end face detection components (41). The first light source (43) is disposed on the side of the end face detection component (41) facing the battery under test (100), and the first light source (43) is used to provide illumination to the end face of the battery under test (100).

4. The battery testing device according to claim 3, characterized in that, The first light source (43) is ring-shaped, and the center of the camera of the end face detection device (41) and the center of the first light source (43) are both located on the extension line of the axis of the battery under test (100).

5. The battery testing device according to claim 2, characterized in that, It also includes two first driving members (51), which are respectively disposed on both sides of the battery under test (100) and correspond one-to-one with the two transparent pressure plates (42). The fixed end of the first driving member (51) is disposed on the support assembly (1), and the output end of the first driving member (51) is connected to the corresponding transparent pressure plate (42). The two first driving members (51) can drive the two transparent pressure plates (42) to move synchronously toward or away from the battery under test (100).

6. The battery testing device according to claim 5, characterized in that, The support assembly (1) includes a support base (12), and the transparent pressure plate (42) is slidably connected to the support base (12) through a first guide rail structure. The extension direction of the first guide rail structure is perpendicular to the end face of the battery under test (100). The first driving member (51) can drive the transparent pressure plate (42) to move along the first guide rail structure.

7. The battery testing device according to claim 1, characterized in that, The support assembly (1) includes a mounting bracket (11), two mounting brackets (11) are symmetrically arranged on both sides of the battery under test (100), and two end face detection elements (41) are respectively disposed on the two mounting brackets (11). The distance between the two end face detection elements (41) and the corresponding end faces on both sides of the battery under test (100) is equal.

8. The battery testing device according to any one of claims 1-7, characterized in that, The length detection component (2) includes a measuring rod (21), a displacement detection element (22), two mounting plates (23) and two clamping plates. The two mounting plates (23) correspond one-to-one with the two clamping plates and are respectively disposed on both sides of the battery under test (100). The measuring rod (21) and the displacement detection element (22) are respectively disposed on the two mounting plates (23). The displacement detection element (22) is provided with a compressible and resettable contact (221) on the side facing the measuring rod (21). The measuring rod (21) and the contact (221) are disposed opposite each other. The two mounting plates (23) can move towards the battery under test (100) respectively. When the two clamping plates clamp the two ends of the battery under test (100), the measuring rod (21) compresses the contact (221).

9. The battery testing device according to claim 8, characterized in that, The length detection component (2) further includes a second driving component (24). The two second driving components (24) correspond one-to-one with the two mounting plates (23). The fixed end of the second driving component (24) is disposed on the support component (1). The output end of the second driving component (24) is connected to the corresponding mounting plate (23). The two second driving components (24) can drive the two mounting plates (23) to move synchronously toward or away from the battery under test (100).

10. The battery testing device according to any one of claims 1-7, characterized in that, The support assembly (1) includes a support frame (14), and the tab detection assembly (3) includes a tab detection element (31). The tab detection element (31) is movably disposed on the support frame (14), and the tab detection element (31) is directly opposite the protruding cell tab on the end face of the battery under test (100) in the vertical direction.

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