Detection device

Abstract

This application relates to a testing device, including a loading assembly, a transport assembly, a clamping structure, and a testing component. The loading assembly includes a loading stage with a bearing surface for supporting the test piece. The transport assembly includes a frame and a first driving member, which is mounted on the frame. The clamping structure includes a first fixing member, a second driving member, and an adsorption member. The first fixing member is connected to the first driving member and drives it to reciprocate along a first direction. The second driving member is mounted on the first fixing member and connected to the adsorption member, driving it to move along a second direction towards or away from the bearing surface. The first and second directions intersect. The testing component is used to obtain the dimension of the test piece along the second direction when it is placed on the loading stage. This testing device can improve the testing efficiency of the test piece.

Description

Technical Field

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

[0002] With the rapid development of the new energy vehicle industry, pouch cells, as one of its core components, have a significant impact on the vehicle's range and safety due to their performance and quality. The thickness of the pouch cell, as a key parameter, directly affects the battery's energy density, heat dissipation performance, and overall size design. Therefore, accurate measurement of the pouch cell thickness is particularly important.

[0003] Currently, the main methods for measuring the thickness of pouch cells in the market include manual measurement and semi-automatic measurement. Specifically, manual measurement requires placing the pouch cell at the measurement location, and then the operator directly measures its dimensions. Semi-automatic measurement requires a drive mechanism, a transport mechanism, and other structures to transfer the pouch cell to the measurement location, and then a detection mechanism to measure its dimensions.

[0004] However, manual measurement relies on the experience and skills of operators, resulting in problems such as low measurement accuracy, low efficiency, and poor repeatability. While semi-automatic measurement equipment improves measurement efficiency to some extent, it is often complex in structure, expensive, and difficult to seamlessly integrate with fully automated production lines, still leading to relatively low measurement efficiency. Utility Model Content

[0005] Therefore, it is necessary to provide a detection device that aims to solve the problem of low measurement efficiency.

[0006] A detection device, comprising:

[0007] The test assembly includes a stage having a bearing surface for bearing the test piece;

[0008] The carrier assembly includes a frame and a first drive unit; the first drive unit is mounted on the frame.

[0009] The clamping structure includes a first fixing member, a second driving member, and an adsorption member; the first fixing member is connected to the first driving member, and the first driving member is used to drive the first fixing member to reciprocate along a first direction; the second driving member is installed on the first fixing member, and the second driving member is connected to the adsorption member and is used to drive the adsorption member to move along a second direction toward or away from the bearing surface; the first direction and the second direction intersect.

[0010] The test piece is used to obtain the dimension of the test piece along a second direction when the test piece is placed on a stage.

[0011] In some embodiments, the detection device includes a first state and a second state; in the first state and the second state, the bearing surface and the adsorption element are arranged opposite to each other and spaced apart along a second direction, and the test piece is disposed between the bearing surface and the adsorption element.

[0012] In the first state, the test piece and the bearing surface are spaced apart along the second direction, and the test piece is adsorbed onto the adsorbent;

[0013] In the second state, the test piece comes into contact with the adsorption element and the bearing surface.

[0014] In some embodiments, the detection device further includes a third state;

[0015] In the third state, the orthographic projection of the adsorbent onto the plane of the bearing surface does not overlap with the orthographic projection of the bearing surface onto the plane of the bearing surface; the adsorbent is adsorbed onto the test piece.

[0016] In some embodiments, the clamping structure further includes:

[0017] The second fixing member is connected to the side of the second driving member away from the first fixing member; and the adsorption member is connected to the second fixing member.

[0018] In some embodiments, the adsorption element includes:

[0019] The air intake section is located on the side of the second fixing member facing the first fixing member;

[0020] An adsorption section is located on the side of the second fixing member away from the first fixing member, and the adsorption port of the adsorption member is located on the side of the adsorption section away from the first fixing member; and / or

[0021] The adsorption element also includes:

[0022] A connecting section is provided on the side of the second fixing member facing the first fixing member, and the connecting section connects the air intake section and the first fixing member.

[0023] In some embodiments, the detection device further includes:

[0024] The sensor is used to detect whether the object to be tested is placed on the stage.

[0025] In this process, the test piece is placed on the stage. In the second state, the detection piece measures the distance between the adsorption port of the adsorption piece and the bearing surface of the stage, which is the dimension of the test piece along the second direction.

[0026] In some embodiments, the clamping structure further includes:

[0027] The limiting member includes a first limiting portion and a second limiting portion. The first limiting portion is connected to the side of the first fixing member facing the adsorption member, and the second limiting portion is connected to the side of the adsorption member facing the first fixing member. The first limiting portion and the second limiting portion are disposed opposite to each other along a second direction. When the first limiting portion and the second limiting portion come into contact, a limiting state is formed between the adsorption member and the first fixing member, so that the distance between the adsorption member and the first fixing member along the second direction is minimized; and / or

[0028] The clamping structure also includes:

[0029] The positioning element includes a positioning shaft and a positioning sleeve, the positioning shaft passing through the positioning sleeve, and the positioning sleeve being connected to a first fixing element; one end of the positioning shaft is connected to an adsorption element, and the positioning shaft is movably connected to the positioning sleeve; and / or

[0030] The detection device also includes a controller, and the clamping structure further includes a third fixing member, a first sensing member, and a first mating member; the controller is electrically connected to the first sensing member and the detection member; the third fixing member is connected to the first fixing member; the first sensing member includes a second transmitting end and a second receiving end, with a gap between the second transmitting end and the second receiving end, the second transmitting end facing the second receiving end, and the second receiving end being used to receive the signal emitted by the second transmitting end; in a first state, the first mating member is located outside the gap, and in a second state, the first mating member is located inside the gap, used to block the signal emitted by the second transmitting end to the second receiving end, and the controller is configured to open the detection member.

[0031] In some embodiments, the clamping structure further includes:

[0032] A fixed cover is attached to the positioning shaft and connected to the end of the positioning shaft away from the adsorption component;

[0033] The first connector is located on the side of the second driving component facing the adsorption component;

[0034] The second mating component is located on the side of the adsorption component facing the first fixing component, and the second mating component is connected to the first connector;

[0035] The third mating component has a second through hole, which extends through the third mating component along a second direction. At least a portion of the second driving component passes through the second through hole, and the third mating component is connected to the first fixing component.

[0036] In some embodiments, the loading assembly further includes a column; a loading platform is disposed on the side of the column opposite to the direction of gravity, and the loading platform is connected to the column;

[0037] The stage includes a support section and a loading section, with the support section located between the loading section and the column; wherein the elastic modulus of the support section is greater than that of the loading section; and / or

[0038] The carrier component also includes a second sensing element; the second sensing element includes a third transmitter and a third receiver spaced apart, the third transmitter being used to transmit signals and the third receiver being used to receive signals transmitted by the third transmitter;

[0039] The signal transmitted by the third transmitter is not reflected by the device under test (DUT) to the third receiver, and the signal received by the third receiver is the first signal; the signal transmitted by the third transmitter is reflected by the DUT to the third receiver, and the signal received by the third receiver is the second signal, so as to determine whether the DUT is placed on the stage based on the first signal and the second signal.

[0040] In some embodiments, there are multiple clamping structures, which are arranged along a third direction to form a clamping structure group. The first fasteners in two adjacent clamping structures in the same clamping structure group are interconnected.

[0041] The aforementioned testing device includes a loading assembly, a transport assembly, a clamping structure, and a testing component. The loading assembly includes a loading stage with a bearing surface for supporting the test piece. The transport assembly includes a frame and a first driving component, which is mounted on the frame. The clamping structure includes a first fixing component, a second driving component, and an adsorption component. The first fixing component is connected to the first driving component and drives it to reciprocate along a first direction. The second driving component is mounted on the first fixing component and connected to the adsorption component, driving it to move along a second direction towards or away from the bearing surface. The first and second directions intersect. The testing component is used to obtain the dimension of the test piece along the second direction when it is placed on the loading stage.

[0042] The detection device of this application, since the second driving member is connected to the adsorption member, can drive the adsorption member to move, thereby adsorbing the test piece outside the stage. Furthermore, since the first driving member is mounted on the frame and the first fixing member is connected to the first driving member, the first driving member can drive the first fixing member to reciprocate along the first direction, thereby transferring the test piece outside the stage onto the stage via the adsorption member. Simultaneously, with the test piece placed on the stage, the dimensions of the test piece along the second direction can be directly obtained through the detection member, improving the detection efficiency of the test piece. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the detection device in one embodiment of this application.

[0044] Figure 2 This is a schematic diagram of the structure of a carrier component in one embodiment of this application.

[0045] Figure 3 This is a schematic diagram of the clamping structure in one embodiment of this application.

[0046] Figure 4 This is a schematic diagram of the structure of the detection element disposed on the second fixing element in one embodiment of this application.

[0047] Figure 5 This is a schematic diagram of the clamping structure from another perspective in one embodiment of this application.

[0048] Figure 6 This is a schematic diagram of the connection between the adsorption element and the second fixing element in one embodiment of this application.

[0049] Figure 7 This is a schematic diagram of the structure of the cargo carrier component in one embodiment of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 10. Detection device; 20. Test piece;

[0052] 1. Cargo assembly; 2. Transport assembly; 3. Clamping structure; 4. Detection component; 5. Sensor component; 6. Connecting component;

[0053] 11. Platform; 12. Column; 13. Reinforcing rib; 14. Support base;

[0054] 111. Support section; 112. Cargo-carrying section;

[0055] 21. Frame; 22. First drive component; 23. Second sensing component; 24. Sliding component; 25. Second connector;

[0056] 221. First fixed sleeve; 222. First drive rod;

[0057] 301. First fixing component; 302. Second driving component; 303. Adsorption component; 304. Second fixing component; 305. Limiting component; 306. Positioning component; 307. Third fixing component; 308. First sensing component; 309. First mating component; 310. Fixing cover; 311. First connector; 312. Second mating component; 313. Third mating component;

[0058] 3021, Second fixing sleeve; 3022, Second drive rod;

[0059] 3031, Intake section; 3032, Adsorption section; 3033, Connecting section;

[0060] 3051, First limiting part; 3052, Second limiting part;

[0061] 3061, positioning shaft; 3062, positioning sleeve. Detailed Implementation

[0062] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0063] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0064] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0066] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown. An embodiment of this application provides a detection device 10, including a loading assembly 1, a transport assembly 2, a clamping structure 3, and a detection element 4. The loading assembly 1 includes a loading stage 11 with a bearing surface for supporting the test piece 20. The transport assembly 2 includes a frame 21 and a first driving member 22; the first driving member 22 is mounted on the frame 21. The clamping structure 3 includes a first fixing member 301, a second driving member 302, and an adsorption member 303. The first fixing member 301 is connected to the first driving member 22, and the first driving member 22 drives the first fixing member 301 to reciprocate along a first direction. The second driving member 302 is mounted on the first fixing member 301 and connected to the adsorption member 303, and drives the adsorption member 303 to move along a second direction towards or away from the bearing surface. The first and second directions intersect. The detection element 4 is used to obtain the dimension of the test piece 20 along the second direction when the test piece 20 is placed on the loading stage 11.

[0068] It should be noted that the first direction in this application is... Figure 1 The X direction in this application, and the second direction in this application are... Figure 1 in the Y direction.

[0069] It should be further noted that the test piece 20 in this application refers to the product whose dimensions need to be measured. The test piece 20 in this application can be any product that can be applied to the testing device 10 of this application, and this application does not limit the specific type of the test piece 20. For example, this application uses a battery cell as the test piece 20 for illustration. The battery cells mentioned in the following description refer to this test piece 20.

[0070] The stage 11 provides a stable platform for placing the battery cell, ensuring it remains in a relatively fixed position during testing and preventing instability from affecting the accuracy of the test results. The frame 21 serves as the supporting structure for the entire transport assembly 2, providing a foundation and fixed position for the first drive component 22. This ensures the first drive component 22 remains stable during operation and does not shift due to vibration or external forces, thus guaranteeing the stability and reliability of the entire testing device 10. The first fixing component 301 acts as a connecting part, linking the first drive component 22 and the second drive component 302. It can move along a first direction under the drive of the first drive component 22, while also providing a mounting and fixing position for the second drive component 302, ensuring it can move with the first fixing component 301 and remain stable during movement.

[0071] Specifically, the first driving member 22 is mounted on the frame 21, driving the first fixing member 301 to reciprocate along the first direction. During the testing process, the movement of the first driving member 22 can move the pressing structure 3 to a suitable position, enabling it to accurately operate the battery cell. Since the second driving member 302 is connected to the adsorption member 303, the second driving member 302 can drive the adsorption member 303 to move, thereby adsorbing the battery cell outside the stage 11. Furthermore, since the first driving member 22 is mounted on the frame 21 and the first fixing member 301 is connected to the first driving member 22, the first driving member 22 can drive the first fixing member 301 to reciprocate along the first direction, thereby transferring the battery cell onto the stage 11. At the same time, with the battery cell placed on the stage 11, the dimensions of the battery cell along the second direction can be directly obtained through the detection member 4, which can improve the detection efficiency of the battery cell.

[0072] Furthermore, since the second driving member 302 is mounted on the first fixing member 301, it drives the adsorption member 303 to move along the second direction towards or away from the bearing surface. On one hand, when it is necessary to test the battery cell, the movement of the second driving member 302 can drive the adsorption member 303 towards the direction closer to the battery cell, thereby achieving adsorption of the battery cell. After the battery cell is adsorbed, the movement of the second driving member 302 can drive the adsorption member 303 towards the direction away from the battery cell, and then the movement of the first driving member 22 can move the second driving member 302 and the battery cell to the area corresponding to the stage 11. Furthermore, the movement of the second driving member 302 drives the battery cell towards the direction closer to the stage 11 to place the battery cell on the stage 11, thereby obtaining the dimension of the battery cell along the second direction through the detection member 4, and realizing the thickness measurement of the battery cell.

[0073] Understandably, since the entire process of measuring the thickness of the battery cell does not require operator assistance, simply activating the detection device 10 allows for the adsorption, transfer, and detection of the battery cell through its various components. This enables automated measurement of the battery cell thickness, reducing production costs and improving the compatibility and flexibility of the production line. Simultaneously, because the entire detection process relies on the operator's experience and skills, the detection device 10 can accurately measure the battery cell thickness, thus improving the accuracy of the thickness measurement.

[0074] Optionally, see Figure 2 As shown, the first driving component 22 includes a first fixed sleeve 221 and a first driving rod 222. The first fixed sleeve 221 is fixedly connected to the frame 21, and the first driving rod 222 is movably connected to the first fixed sleeve 221 along the first direction. The transport component 2 also includes a sliding component 24, which is connected to the pressing structure 3 and movably connected to the frame 21 along the first direction.

[0075] Thus, the first fixed sleeve 221 of the first driving member 22 is fixed on the frame 21, providing stable support and a fixing point for the first driving rod 222. The first driving rod 222 is movably connected to the first fixed sleeve 221 along the first direction and can reciprocate along the first direction under precise control. By connecting with the sliding member 24, the first driving rod 222 can drive the sliding member 24 and the clamping structure 3 connected thereto to move precisely in the first direction, thereby realizing the accurate clamping and loosening action of the battery cell under test, ensuring that the battery cell under test can be stably fixed in a suitable position during the testing process, so as to perform accurate dimensional measurement and other testing operations.

[0076] Furthermore, the sliding member 24 is connected to the clamping structure 3 and is movably connected to the frame 21 along the first direction, ensuring the stability and accuracy of the clamping structure 3 during movement. The sliding member 24 can slide smoothly on the frame 21 along a specific direction (the first direction), reducing swaying and deviation during movement. At the same time, it accurately transmits the driving force of the first drive rod 222 to the clamping structure 3, enabling the clamping structure 3 to move precisely to the designated position according to design requirements, thus improving the reliability and repeatability of the entire testing process.

[0077] Optionally, see Figure 2 As shown, the carrier assembly 2 also includes a second connector 25, which is connected to the first drive rod 222 and the first fixing member 301.

[0078] Thus, the second connector 25 securely connects the first drive rod 222 and the first fixing member 301 together, so that the driving force generated by the first drive rod 222 can be effectively transmitted to the first fixing member 301, thereby driving other components connected to the first fixing member 301 (such as the clamping structure 3, etc.) to perform corresponding movements, realizing operations such as clamping or loosening the battery cell under test.

[0079] Optionally, see Figure 3 As shown, the second driving member 302 includes a second fixing sleeve 3021 and a second driving rod 3022. The second fixing sleeve 3021 is fixedly connected to the first fixing member 301, and the second driving rod 3022 is movably connected to the second fixing sleeve 3021. The adsorption member 303 is disposed on the side of the second driving rod 3022 away from the second fixing sleeve 3021, and the adsorption member 303 is connected to the second driving rod 3022.

[0080] Thus, the second fixing sleeve 3021 is fixed to the first fixing member 301, providing stable support for the second drive rod 3022. The second drive rod 3022 is movably connected to the second fixing sleeve 3021 and can extend and retract in a specific direction. This design allows for precise control of the position of the adsorption member 303. By controlling the extension and retraction of the second drive rod 3022, the adsorption member 303 can accurately reach the location of the battery cell, realizing the adsorption and placement of the battery cell. Furthermore, the precise control of the adsorption and placement positions ensures the accuracy and consistency of the operation.

[0081] In some embodiments, the detection device 10 includes a first state and a second state; in the first state and the second state, the bearing surface and the adsorption member 303 are arranged opposite to each other and spaced apart along a second direction, and the battery cell is disposed between the bearing surface and the adsorption member 303; in the first state, the battery cell and the bearing surface are spaced apart along the second direction, and the battery cell is adsorbed onto the adsorption member 303; in the second state, the battery cell abuts against the adsorption member 303 and the bearing surface.

[0082] Thus, in the first state, the battery cell and the bearing surface are spaced apart along the second direction and the adsorption member 303 is adsorbed onto the battery cell. This design is beneficial to stabilize the battery cell without contacting the bearing surface, avoiding collisions or friction between the battery cell and the bearing surface during the adsorption process, which may cause the battery cell to shift its position or be damaged on the surface. It also facilitates the precise control of the position of the battery cell by the coordinated movement of the first driving member 22 and the second driving member 302, and accurately transfers it to the designated position on the stage 11, preparing for subsequent accurate detection.

[0083] Furthermore, in the second state, the battery cell abuts against the adsorption member 303 and the supporting surface. This state ensures that the battery cell is in a stable and fixed position during testing. On the one hand, the adsorption member 303 continuously provides adsorption force to ensure that the battery cell will not shake or shift during testing; on the other hand, the battery cell is in close contact with the supporting surface, allowing the detection member 4 to accurately obtain the dimension of the battery cell along the second direction (i.e., the thickness of the battery cell). This is because the position of the battery cell is determined at this time, and its relative positional relationship with the detection member 4 is also clear, thereby improving the accuracy and reliability of the test results. Through these two state settings, the testing device 10 can operate and test the battery cell more accurately and stably, adapting to different operational needs and improving the overall accuracy and efficiency of testing.

[0084] In some embodiments, the detection device 10 further includes a third state; in the third state, the orthographic projection of the adsorption member 303 on the plane where the bearing surface is located does not overlap with the orthographic projection of the bearing surface on the plane where the bearing surface is located; the adsorption member 303 is adsorbed onto the battery cell.

[0085] Thus, in the third state, when the orthographic projection of the adsorption element 303 on the plane of the bearing surface does not overlap with the orthographic projection of the bearing surface, there will be no interference from the bearing surface during the process of placing the battery cell onto or removing it from the stage 11. This allows for easier adsorption of the battery cell onto the adsorption element 303 and easier removal after testing, improving operational convenience and efficiency. Simultaneously, the non-overlapping of the adsorption element 303 with the bearing surface prevents collisions or friction between the battery cell and the bearing surface during adsorption or movement, protecting the battery cell surface from damage. It also avoids unnecessary wear on the bearing surface and the adsorption element 303, extending the service life of all components of the testing device 10.

[0086] In some embodiments, see Figure 3 and Figure 5 As shown, the clamping structure 3 also includes a second fixing member 304. The second fixing member 304 is connected to the side of the second driving member 302 away from the first fixing member 301; and the adsorption member 303 is connected to the second fixing member 304.

[0087] Thus, the second fixing member 304 acts as an intermediate connecting bridge, more firmly connecting the adsorption member 303 and the second driving member 302. Compared to the adsorption member 303 being directly connected to the second driving member 302, the transitional connection through the second fixing member 304 can disperse the force generated by the adsorption member 303 during the adsorption of the battery cell, avoiding stress concentration at the connection point of the second driving member 302, thereby enhancing the stability of the entire connection structure and reducing the risk of component loosening or damage.

[0088] Furthermore, the driving force generated by the second driving member 302 needs to be accurately transmitted to the adsorption member 303 to achieve stable movement of the adsorption member 303 along the second direction. The second fixing member 304 can effectively and evenly transmit the driving force of the second driving member 302 to the adsorption member 303, ensuring that the adsorption member 303 moves smoothly and with uniform force distribution as it approaches or moves away from the bearing surface, thereby more precisely controlling the adsorption and placement of the battery cell by the adsorption member 303.

[0089] In some embodiments, see Figure 6 As shown, the adsorption component 303 includes an air inlet section 3031 and an adsorption section 3032. The air inlet section 3031 is located on the side of the second fixing member 304 facing the first fixing member 301; the adsorption section 3032 is located on the side of the second fixing member 304 away from the first fixing member 301, and the adsorption port of the adsorption component 303 is located on the side of the adsorption section 3032 away from the first fixing member 301.

[0090] Thus, by positioning the air intake section 3031 on the side of the second fixing member 304 facing the first fixing member 301, and the adsorption section 3032 on the side away from the first fixing member 301, the space on both sides of the second fixing member 304 can be fully utilized, avoiding mutual interference between components and making the spatial structure of the entire pressing structure 3 more compact and reasonable. Specifically, the air intake section 3031 needs to be connected to the air supply system or vacuum system, and its placement on the side closer to the first fixing member 301 facilitates pipe connections and wiring for these external systems. Simultaneously, the adsorption section 3032, positioned on the side away from the first fixing member 301, allows the adsorption port to more easily approach the battery cell, facilitating adsorption operations without obstruction from the first fixing member 301 and related connecting components during operation.

[0091] In some embodiments, see Figure 6 As shown, the adsorption component 303 also includes a connecting section 3033. The connecting section 3033 is disposed on the side of the second fixing component 304 facing the first fixing component 301, and the connecting section 3033 is connected to the air intake section 3031 and the first fixing component 301.

[0092] Thus, the connecting section 3033 connects the air inlet section 3031 of the adsorption element 303 to the first fixing member 301, providing more stable support for the adsorption element 303 within the device. When the adsorption element 303 adsorbs the battery cell and performs related operations, the connecting section 3033 can share some of the force, preventing the adsorption element 303 from shaking or shifting due to uneven force distribution, ensuring the stability of the adsorption element 303 during operation, and thereby improving the accuracy of battery cell operation.

[0093] Meanwhile, the connecting section 3033 provides a clear connection point and installation method for the adsorbent 303. When installing the adsorbent 303, the connecting section 3033 can be connected to the first fixing member 301 and the air inlet section 3031 respectively first, and then the entire adsorbent 303 can be installed onto the second fixing member 304. This makes the installation process more convenient and efficient, reduces the adjustment and calibration work during the installation process, and improves the accuracy and efficiency of the installation.

[0094] In some embodiments, the detection device 10 further includes a sensor 5. The sensor 5 is used to sense whether the test piece 20 is disposed on the stage 11; wherein, the test piece 20 is disposed on the stage 11, in the second state, the detection device 4 detects the distance between the adsorption port of the adsorption member 303 and the bearing surface of the stage 11, which is the dimension of the test piece 20 along the second direction.

[0095] In this way, the sensing element 5 (such as a photoelectric sensor, a capacitive sensor, etc.) can detect whether the test piece 20 is placed on the stage 11, thus avoiding invalid measurements on the "empty stage" and reducing equipment idle running losses.

[0096] Specifically, firstly, the test piece 4 is zeroed using a standard test piece (dummy battery cell) as a reference. The sensing piece 5 senses whether there is a test piece 20 on the stage 11. When the sensing piece 5 senses that there is a test piece 20 on the stage 11, the pressure is adjusted to squeeze the test piece 20 until it is squeezed to a suitable position, that is, when the test piece 20 is in the second state, the test piece 4 detects the distance between the adsorption port of the adsorption piece 303 and the bearing surface of the stage 11, which is the dimension of the test piece 20 along the second direction. Then, using the standard test piece (dummy battery cell) as a benchmark, positive and negative records are made to determine whether the test piece 20 is within the tolerance range, so as to determine whether the test piece 20 is qualified.

[0097] In this way, the physical dimensions of the part under test 20 in a specific direction can be directly quantified, which can provide key data support for quality inspection and process control, avoid subjective errors of manual measurement, and reduce the labor costs of the production line.

[0098] Optionally, see Figure 4 As shown, the detection device 10 also includes a connector 6; the connector 6 is disposed on the side of the second fixing member 304 facing the first fixing member 301, and is connected to the sensing member 5 and the second fixing member 304.

[0099] Thus, by connecting and fixing the sensor 5 to the second fixing member 304, a stable position and posture of the sensor 5 are ensured during the sensing process, enabling it to accurately sense the object to be measured. Simultaneously, it facilitates the installation and removal of the sensor 5. During the assembly of the detection device 10, the sensor 5 can be quickly installed in the designated position via the connector 6; when the sensor 5 malfunctions or needs replacement, it can also be easily removed from the second fixing member 304, facilitating repair and maintenance and improving the maintainability of the equipment.

[0100] In some embodiments, see Figure 5 As shown, the pressing structure 3 also includes a limiting member 305. The limiting member 305 includes a first limiting part 3051 and a second limiting part 3052. The first limiting part 3051 is connected to the side of the first fixing member 301 facing the adsorption member 303, and the second limiting part 3052 is connected to the side of the adsorption member 303 facing the first fixing member 301. The first limiting part 3051 and the second limiting part 3052 are arranged opposite to each other along the second direction. When the first limiting part 3051 and the second limiting part 3052 are in contact, a limiting state is formed between the adsorption member 303 and the first fixing member 301, so that the distance between the adsorption member 303 and the first fixing member 301 along the second direction is the minimum distance.

[0101] Thus, through the relative arrangement of the first limiting part 3051 and the second limiting part 3052, the minimum distance between the adsorption member 303 and the first fixing member 301 along the second direction can be clearly defined when they come into contact. This means that during the operation of the detection device 10, the relative position of the adsorption member 303 and the first fixing member 301 is precisely limited, ensuring that the distance between them will not be less than this minimum distance regardless of the working state, thereby ensuring the stability and reliability of the entire pressing structure 3. This effectively prevents damage to the adsorption member 303 and the first fixing member 301 due to excessive proximity, and can improve the service life of the detection device 10.

[0102] In some embodiments, see Figure 5 As shown, the clamping structure 3 also includes a positioning element 306. The positioning element 306 includes a positioning shaft 3061 and a positioning sleeve 3062. The positioning shaft 3061 passes through the positioning sleeve 3062, and the positioning sleeve 3062 is connected to the first fixing element 301. One end of the positioning shaft 3061 is connected to the suction element 303, and the positioning shaft 3061 is movably connected to the positioning sleeve 3062.

[0103] Thus, the positioning shaft 3061 passes through the positioning sleeve 3062, providing precise guidance for the movement of the adsorption member 303 relative to the first fixing member 301. When the adsorption member 303 moves closer to or further away from the first fixing member 301 along the direction of the positioning shaft 3061, it ensures the straightness and accuracy of its movement trajectory, avoiding instability such as deviation or wobbling, thereby improving the overall movement accuracy of the clamping structure 3. Furthermore, the positioning member 3061 makes the installation between the adsorption member 303 and the first fixing member 301 more convenient and quick. During installation, simply insert the positioning shaft 3061 into the positioning sleeve 3062, connect the positioning sleeve 3062 to the first fixing member 301, and connect one end of the positioning shaft 3061 to the adsorption member 303 to achieve initial positioning between the adsorption member 303 and the first fixing member 301. This modular installation method reduces the workload of adjustment and calibration during installation, improving installation efficiency.

[0104] In some embodiments, the detection device 10 further includes a controller, and the clamping structure 3 further includes a third fixing member 307, a first sensing member 308, and a first mating member 309; the controller is electrically connected to the first sensing member 308 and the detection member 4; the third fixing member 307 is connected to the first fixing member 301; the first sensing member 308 includes a second transmitting end and a second receiving end, with a gap between the second transmitting end and the second receiving end, the second transmitting end facing the second receiving end, and the second receiving end being used to receive the signal emitted by the second transmitting end; in a first state, the first mating member 309 is disposed outside the gap, and in a second state, the first mating member 309 is disposed inside the gap to block the signal emitted by the second transmitting end to the second receiving end, and the controller is configured to activate the detection member 4.

[0105] Thus, the first sensing element 308 determines the state of the detection device 10 by observing the signal obstruction between the second transmitting end and the second receiving end. In the first state, the first mating member 309 is outside the gap, and the signal emitted by the second transmitting end can be successfully received by the second receiving end; while in the second state, the first mating member 309 enters the gap, obstructing the signal, and this change in state can be accurately sensed by the first sensing element 308. In this way, it is possible to accurately determine whether the pressing structure 3 has changed from the first state to the state of detecting the battery cell (i.e., the second state).

[0106] Furthermore, after receiving feedback from the first sensing element 308 regarding state changes, the controller is configured to activate the detection element 4. This means that the controller will only activate the detection element 4 to perform measurements when the clamping structure 3 reaches the second state, i.e., the first mating element 309 blocks the signal, indicating that the adsorption element 303 and the first fixing element 301 have completed the clamping and positioning operations on the battery cell and are in a state ready for detection. This ensures that the detection operation is performed at the correct time, avoiding measurement errors or mistakes caused by performing detection when the device is not ready.

[0107] In some embodiments, see Figure 5 As shown, the clamping structure 3 also includes a fixing cover 310, a first connector 311, a second mating member 312, and a third mating member 313. The fixing cover 310 is disposed on the positioning shaft 3061 and connected to the end of the positioning shaft 3061 away from the adsorption member 303; the first connector 311 is disposed on the side of the second driving member 302 facing the adsorption member 303; the second mating member 312 is disposed on the side of the adsorption member 303 facing the first fixing member 301, and the second mating member 312 is connected to the first connector 311; the third mating member 313 has a second through hole, the second through hole penetrates the third mating member 313 along a second direction, at least a portion of the second driving member 302 passes through the second through hole, and the third mating member 313 is connected to the first fixing member 301.

[0108] The fixing cover 310 is placed on the positioning shaft 3061 and connected to the end of the positioning shaft 3061 away from the adsorption component 303. It serves to fix the positioning shaft 3061, prevent the positioning shaft 3061 from axially moving or shaking during operation, and ensure that the positioning shaft 3061 can stably provide guidance and positioning functions for the adsorption component 303.

[0109] Furthermore, the first connector 311 is located on the side of the second driving member 302 facing the adsorption member 303, and the second mating member 312 is located on the side of the adsorption member 303 facing the first fixing member 301 and connected to the first connector 311. These components connect the second driving member 302 and the adsorption member 303, allowing the second driving member 302 to drive the adsorption member 303 to move via the first connector 311 and the second mating member 312. This enables the adsorption member 303 to move closer to or further away from the first fixing member 301, thus completing the pressing or releasing operation of the battery cell. In this way, the connection between the second mating member 312 and the first connector 311 ensures that the driving force of the second driving member 302 is accurately transmitted to the adsorption member 303. Furthermore, during the movement of the adsorption member 303, the second mating member 312 can rotate or move flexibly with the movement of the adsorption member 303 without hindering or interfering with its movement, ensuring the smoothness and stability of the adsorption member 303's movement.

[0110] Furthermore, since the third mating part 313 is provided with a second through hole, at least a portion of the second driving part 302 passes through the second through hole and is connected to the first fixing part 301. It connects the second driving part 302 and the first fixing part 301 together, so that the second driving part 302 can be stably installed on the first fixing part 301. It also provides positioning and support for the second driving part 302, ensuring the positional accuracy of the second driving part 302 during operation.

[0111] In some embodiments, see Figure 7 As shown, the loading assembly 1 also includes a column 12; a loading platform 11 is disposed on the side of the column 12 away from the direction of gravity, and the loading platform 11 is connected to the column 12; the loading platform 11 includes a support part 111 and a loading part 112, the support part 111 being disposed between the loading part 112 and the column 12; wherein, the elastic modulus of the support part 111 is greater than the elastic modulus of the loading part 112.

[0112] Thus, the column 12 provides the main support for the stage 11, fixing the stage 11 in a certain position so that it can support the battery cell. The support part 111 has a large elastic modulus, which can maintain relatively small deformation when bearing the weight of the support part 112 and the battery cell, ensuring the stability of the overall structure of the stage 11, providing a stable support platform for the battery cell, and reducing measurement errors caused by deformation of the support structure.

[0113] The carrier section 112 is made of insulating material. Since a battery cell is an electrochemical device, good insulation must be maintained between the positive and negative electrodes to prevent short circuits from damaging the battery or even causing safety accidents. The carrier section 112, made of insulating material, isolates the battery cell from the support section 111 and other potentially conductive components, preventing the positive and negative electrodes of the battery cell from contacting external conductors and ensuring the electrical safety of the battery cell during testing.

[0114] Optionally, see Figure 7 As shown, the loading assembly 1 also includes reinforcing ribs 13, some of which are connected to the loading platform 11 and some of which are connected to the column 12.

[0115] Thus, the reinforcing rib 13 connects the stage 11 and the column 12 into a more stable overall structure. When the battery cell to be tested is placed on the stage 11, a certain amount of gravity and pressure will be generated. The reinforcing rib 13 can help disperse these forces, reduce the deformation and shaking of the stage 11, and enable the stage 11 to support the battery cell to be tested more stably. This ensures the positional accuracy of the battery cell to be tested during the testing process and helps to improve the accuracy of the test results.

[0116] Optionally, see Figure 7 As shown, the loading assembly 1 also includes a support base 14, which is located on the side of the column 12 away from the loading platform 11, and the support base 14 is connected to the column 12.

[0117] In this way, the support base 14 can provide additional support points for the column 12, making the column 12 more stable when bearing the weight of the stage 11 and the object to be tested, reducing the shaking and tilting of the column 12, improving the stability of the entire load assembly 1, ensuring the positional accuracy of the stage 11 during the test, and thus ensuring the accuracy of the test results.

[0118] In some embodiments, see Figure 2 As shown, the carrier assembly 2 also includes a second sensing element 23; the second sensing element 23 includes a third transmitting end and a third receiving end arranged at intervals, the third transmitting end is used to transmit signals, and the third receiving end is used to receive signals transmitted by the third transmitting end; the signal transmitted by the third transmitting end is not reflected by the battery cell to the third receiving end, and the signal received by the third receiving end is a first signal; the signal transmitted by the third transmitting end is reflected by the battery cell to the third receiving end, and the signal received by the third receiving end is a second signal, so as to determine whether the battery cell is placed on the stage 11 based on the first signal and the second signal.

[0119] Thus, when no battery cell is detected placed on the stage 11 (after receiving the first signal), the detection device 10 will not initiate unnecessary detection operations, avoiding idling of the equipment, saving energy and time, extending the service life of the equipment, and improving the operating efficiency of the entire production line.

[0120] Meanwhile, during the testing process, the testing operation will only be performed when it is confirmed that the battery cell is correctly placed on the stage 11. This effectively avoids invalid testing when there is no battery cell or the battery cell is not placed correctly, thereby reducing erroneous test results caused by misoperation and improving the accuracy and reliability of the test results.

[0121] In some embodiments, see Figure 1 As shown, there are multiple clamping structures 3, which are arranged along a third direction to form a group of clamping structures 3. The first fixing members 301 in two adjacent clamping structures 3 in the same group of clamping structures 3 are connected to each other.

[0122] It should be noted that the third party in this application is... Figure 1 The Z direction in the equation.

[0123] Thus, multiple clamping structures 3 are arranged along a third direction, allowing for simultaneous clamping of multiple locations. Compared to a single clamping structure 3, this enables the clamping operation of the battery cell to be completed in a shorter time, improving testing efficiency. Furthermore, the first fixing members 301 of adjacent clamping structures 3 are interconnected, allowing them to better coordinate during operation, further improving the efficiency and effectiveness of clamping.

[0124] Optionally, the three sets of clamping structures can be multiple sets, and the multiple sets of clamping structures can be arranged along the first direction.

[0125] Thus, with multiple sets of clamping structures arranged along the first direction, multiple battery cells can be clamped or adsorbed simultaneously. For example, in battery cell testing, if each set of clamping structures can clamp one or more battery cells, then multiple sets of structures can process multiple cells simultaneously. Compared to a single set of clamping structures, this significantly improves the parallelism of testing, allowing more battery cells to be tested per unit time, thereby improving overall testing efficiency.

[0126] Furthermore, the arrangement of multiple sets of clamping structures (3 groups) facilitates the optimization of the loading and unloading process. On an automated production line, loading, inspection, and unloading operations can be performed simultaneously in different clamping structure (3 groups) areas. For example, while one set of clamping structures is performing inspection, other sets can perform loading or unloading operations. This reduces equipment downtime, making the entire inspection process more compact and efficient, and further improving inspection efficiency.

[0127] For ease of explanation, the two adjacent sets of clamping structures arranged along the first direction are the left and right sets of clamping structures, respectively. Based on the above description, it can be understood that the left and right sets of clamping structures work alternately. While one set picks up the battery cell for testing, the other set prepares to place the battery cell, reducing equipment downtime, improving overall material handling efficiency, and thus enhancing testing efficiency. For example, when the right set of clamping structures picks up the battery cell for testing, the left set of clamping structures can place the battery cell in a designated position beforehand. When the right set completes its testing, the left set has already prepared a new battery cell, enabling rapid picking and placing, shortening the testing cycle for a single battery cell, and increasing the number of battery cells tested per unit time.

[0128] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0129] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A detection device, characterized in that, include: A sample carrier assembly includes a sample stage having a bearing surface for bearing the sample to be tested. The carrier assembly includes a frame and a first drive unit; The first drive unit is mounted on the frame; The clamping structure includes a first fixing member, a second driving member, and an adsorption member; the first fixing member is connected to the first driving member, and the first driving member is used to drive the first fixing member to reciprocate along a first direction; the second driving member is installed on the first fixing member, and the second driving member is connected to the adsorption member and is used to drive the adsorption member to move along a second direction toward or away from the bearing surface; the first direction and the second direction intersect. A testing element is used to obtain the dimension of the test piece along the second direction when the test piece is placed on the stage.

2. The detection device according to claim 1, characterized in that, The detection device includes a first state and a second state; in the first state and the second state, the bearing surface and the adsorption element are arranged opposite to each other and spaced apart along the second direction, and the test piece is disposed between the bearing surface and the adsorption element; In the first state, the test piece and the bearing surface are spaced apart along the second direction, and the test piece is adsorbed onto the adsorbent; In the second state, the test piece abuts against the adsorption element and the bearing surface.

3. The detection device according to claim 2, characterized in that, The detection device also includes a third state; In the third state, the orthographic projection of the adsorption element onto the plane containing the bearing surface does not overlap with the orthographic projection of the bearing surface onto the plane containing the bearing surface. The adsorption element adsorbs onto the test sample.

4. The detection device according to claim 3, characterized in that, The clamping structure also includes: The second fixing member is connected to the side of the second driving member away from the first fixing member; and the adsorption member is connected to the second fixing member.

5. The detection device according to claim 4, characterized in that, The adsorption element includes: The air intake section is located on the side of the second fixing member facing the first fixing member; An adsorption section is located on the side of the second fixing member away from the first fixing member, and the adsorption port of the adsorption member is located on the side of the adsorption section away from the first fixing member; and / or The adsorption element further includes: A connecting section is provided on the side of the second fixing member facing the first fixing member, and the connecting section connects the air intake section and the first fixing member.

6. The detection device according to claim 5, characterized in that, The detection device further includes: A sensor is used to sense whether the test piece is placed on the stage. In this configuration, the test piece is placed on the stage. In the second state, the detection piece detects the distance between the adsorption port of the adsorption piece and the bearing surface of the stage, which is the dimension of the test piece along the second direction.

7. The detection device according to any one of claims 2-6, characterized in that, The clamping structure also includes: A limiting member includes a first limiting portion and a second limiting portion. The first limiting portion is connected to the side of the first fixing member facing the adsorption member, and the second limiting portion is connected to the side of the adsorption member facing the first fixing member. The first limiting portion and the second limiting portion are disposed opposite to each other along a second direction. When the first limiting portion and the second limiting portion are in contact, a limiting state is formed between the adsorption member and the first fixing member, so that the distance between the adsorption member and the first fixing member along the second direction is minimized; and / or The clamping structure also includes: A positioning element includes a positioning shaft and a positioning sleeve, wherein the positioning shaft passes through the positioning sleeve, and the positioning sleeve is connected to the first fixing element; one end of the positioning shaft is connected to the suction element, and the positioning shaft is movably connected to the positioning sleeve; and / or The detection device further includes a controller, and the clamping structure further includes a third fixing member, a first sensing member, and a first mating member; the controller is electrically connected to the first sensing member and the detection member; the third fixing member is connected to the first fixing member; the first sensing member includes a second transmitting end and a second receiving end, with a gap between the second transmitting end and the second receiving end, the second transmitting end facing the second receiving end, and the second receiving end being used to receive a signal emitted by the second transmitting end; in the first state, the first mating member is disposed outside the gap, and in the second state, the first mating member is disposed inside the gap, used to block the signal emitted by the second transmitting end to the second receiving end, and the controller is configured to activate the detection member.

8. The detection device according to claim 7, characterized in that, The clamping structure also includes: A fixing cap is provided on the positioning shaft and connected to the end of the positioning shaft away from the adsorption element; The first connector is located on the side of the second driving member facing the adsorption member; The second mating component is disposed on the side of the adsorption component facing the first fixing component, and the second mating component is connected to the first connector; The third mating component has a second through hole, which extends through the third mating component along the second direction. At least a portion of the second driving component passes through the second through hole, and the third mating component is connected to the first fixing component.

9. The detection device according to any one of claims 1-6, characterized in that, The loading assembly also includes a column; the loading platform is located on the side of the column away from the direction of gravity, and the loading platform is connected to the column; The platform includes a support portion and a loading portion, wherein the support portion is disposed between the loading portion and the column; wherein the elastic modulus of the support portion is greater than the elastic modulus of the loading portion; and / or The carrier component further includes a second sensing element; the second sensing element includes a third transmitting end and a third receiving end arranged at intervals, the third transmitting end being used to transmit signals, and the third receiving end being used to receive signals transmitted by the third transmitting end; The signal emitted by the third transmitter is not reflected by the device under test to the third receiver, and the signal received by the third receiver is the first signal; the signal emitted by the third transmitter is reflected by the device under test to the third receiver, and the signal received by the third receiver is the second signal, so as to determine whether the device under test is placed on the stage based on the first signal and the second signal.

10. The detection device according to any one of claims 1-6, characterized in that, The number of clamping structures is multiple, and the multiple clamping structures are arranged along a third direction to form a clamping structure group. The first fixing members in two adjacent clamping structures in the same clamping structure group are connected to each other.

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