OCV equipment compatible with lithium batteries of multiple sizes

Abstract

The utility model belongs to the technical field of battery cell testing equipment, and particularly discloses OCV equipment compatible with lithium batteries of multiple sizes. Comprising a frame, a sliding rail, a battery cell tray, a support, an X-axis support, a Y-axis support, a code scanning gun support, a code scanning gun, a probe and a driving assembly. A sliding rail, a battery cell tray and a support are arranged on the frame, an X-axis support, a Y-axis support and a code scanning gun support are arranged on the support, the code scanning gun support is connected with the X-axis support, a probe and a code scanning gun are further arranged on the code scanning gun support, and the driving assembly is used for driving the code scanning gun and the probe to move in the Z-axis direction of the X-axis support, the Y-axis support and the code scanning gun support. In practical application, the driving assembly controls the code scanning gun support to move in the X-axis direction, the Y-axis direction and the Z-axis direction so as to carry out code scanning on lithium battery cells of different sizes in the cell tray, the applicability of the device is improved, and the production cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery cell testing equipment, and specifically discloses an OCV device compatible with lithium battery cells of multiple sizes. Background Art

[0002] In the production line of lithium battery modules, battery cells need to be scanned and tested to record the voltage and self-discharge rate of the battery cells. Due to different sizes of the battery cells, the positions of the pole columns and the positions of the battery cell barcodes are also different, and the positions of the fixed battery cell trays, the probes, and the barcode scanners also need to change accordingly. Existing equipment can only test battery cells of a fixed style during the test of lithium battery cells, resulting in low applicability of the equipment.

[0003] A highly compatible battery cell OCV testing mechanism with the patent application number CN219799700U includes a bearing plate; a battery cell transfer component installed at the bottom end of the bearing plate; a moving probe testing component installed at the top end of the bearing plate; a battery cell clamping component installed at the top end of the bearing plate, on the side of the moving probe testing component; a right probe testing component installed at the top end of the bearing plate, on the right side of the middle of the moving probe testing component and the battery cell clamping component; a left probe testing component installed at the top end of the bearing plate, on the left side of the middle of the moving probe testing component and the battery cell clamping component. The probe testing component of the above device cannot move in the Z-axis direction, and only the position of the probe is adjusted. The barcode scanner still uses the traditional method and can only test battery cells of a fixed specification, resulting in poor applicability of the device. Therefore, it is urgent for those skilled in the art to solve the above technical problems. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an OCV device compatible with lithium battery cells of multiple sizes in view of the above-mentioned deficiencies of the prior art. The OCV device compatible with lithium battery cells of multiple sizes drives a barcode scanner bracket and a probe to move in the X, Y, and Z axis directions to adapt to the testing of more specifications of battery cells, improving the applicability of the device.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An OCV device compatible with lithium batteries of multiple sizes, comprising a frame, a slide rail, a battery cell tray, a support, an X-axis bracket, a Y-axis bracket, a barcode scanner bracket, a barcode scanner, a probe and a drive assembly; the slide rail, the battery cell tray and the support are arranged on the frame, the X-axis bracket, the Y-axis bracket and the barcode scanner bracket are arranged on the support, the barcode scanner bracket is connected to the X-axis bracket, the probe and the barcode scanner are further arranged on the barcode scanner bracket, the drive assembly is used to drive the barcode scanner and the probe to move in the Z-axis direction where the X-axis bracket, the Y-axis bracket and the barcode scanner bracket are located, the drive assembly includes an X-axis drive motor, a Y-axis drive motor and a Z-axis drive motor, the X-axis drive motor is arranged on the X-axis bracket, the Y-axis drive motor is arranged on the Y-axis bracket, and the Z-axis drive motor is arranged on the barcode scanner bracket.

[0007] Further, two groups of the Y-axis brackets are arranged on the support, the X-axis bracket is slidably arranged between the Y-axis brackets, and the barcode scanner bracket is slidably arranged on the X-axis bracket.

[0008] By arranging two groups of Y-axis brackets, the X-axis bracket can slide between the two groups of Y-axis brackets, so that the position can be adjusted more freely to adapt to battery cell trays of different sizes and layouts, increasing the flexibility of the device. The barcode scanner bracket is designed to slide on the X-axis, which means that the barcode scanner can be quickly adjusted according to the specific position of the battery cell without manually moving the device significantly, improving the barcode scanning efficiency and reducing the operation time. While this layout facilitates adjustment, it also ensures the stability of the internal structure of the device, avoids unnecessary wear and possible damage during long-term use, and enhances the service life of the device. Generally speaking, such a design simplifies the adjustment process of the operator, reduces the time for adjusting the device positioning, makes the production more smooth, and is beneficial to the continuity of the production line.

[0009] Further, transmission tracks are also arranged on the X-axis bracket, the Y-axis bracket and the barcode scanner bracket, and a protective cover is also arranged on the frame.

[0010] The design of the tracks on the X-axis, Y-axis and barcode scanner brackets allows the battery cell or the barcode scanner to automatically move along the axial target position without manual intervention, improving the test speed and the automation level. The probe arranged on the barcode scanner ensures that it can accurately contact a specific position of the battery cell during movement for electrical parameter measurement, improving the test accuracy, reducing human error and ensuring data reliability. The probe configuration on the barcode scanner bracket allows for fine adjustment and adaptation according to the battery cell size, aligning the probe with the battery cell terminal post, enhancing compatibility and the flexibility of the test. Using tracks reduces physical friction, reduces mechanical wear, improves the durability of the device, reduces the cost and difficulty of replacing parts during the maintenance period, and simplifies the maintenance work.

[0011] Further, a control button is also provided at the head end of the frame. The control button is electrically connected to the X-axis drive motor, the Y-axis drive motor, and the code scanning gun bracket. A slide rail is also provided on the frame, and the battery cell tray is slidably arranged on the slide rail; a limiting block is also provided on the frame, and the limiting block is used to prevent the battery cell tray from falling off the slide rail during movement.

[0012] The control button at the head end integrates the electric control of the X and Y-axis motors and the code scanning gun bracket. The operation is centralized, which simplifies the startup and adjustment processes, improves the operation convenience, reduces the training cost of operators. The battery cell tray slides through the slide rail. Combined with the limiting block on the frame, it can ensure that the battery cell tray accurately stops in place, realizes automatic positioning, avoids displacement deviation, improves the test efficiency and safety. The button is linked to the X and Y-axis motors and the code scanning gun bracket, which can accurately drive the code scanning gun to a specified position to scan the battery cell, realizes automatic testing, improves the test speed and accuracy, reduces the reliance on manpower. The frame is integrally designed, and the slide rail and the limiting block optimize the space layout, rationally utilize the factory area, improve the space utilization rate of the equipment, reduce the floor area, and facilitate the layout adjustment and expansion of the production line.

[0013] Further, the limiting block is welded to the frame, and a total of four slide rails are provided, and the limiting blocks are arranged between the slide rails.

[0014] The limiting block is fixed to the frame by welding, which enhances the stability of the overall equipment, ensures that the battery cell tray will not deviate or fall off when sliding on the slide rail, and avoids potential damage and safety accidents. The design of four slide rails combined with the limiting block provides a clear guiding path for the battery cell tray, ensures that each movement is accurate in place, improves the consistency of the test, and reduces positioning errors. The design of the limiting block in the slide rail layout effectively utilizes the space, enables the battery cell tray to slide in a compact space without occupying too much space, optimizes the workshop layout, and improves the integration degree of the equipment. The limiting block design is easy to inspect and replace. Once the slide rail is damaged, the limiting block can be replaced separately without overhauling the whole frame or the slide rail, reducing the maintenance cost and time.

[0015] Further, feet and rollers are also provided at the bottom of the frame, and the rollers and the feet are connected to the bottom of the frame by bolts.

[0016] Rollers are installed at the bottom feet of the frame, enabling the equipment to move easily within the workshop, facilitating the layout adjustment or cleaning of the equipment, enhancing the flexibility of the production environment. Meanwhile, the bottom feet are firmly connected to the frame through bolts, ensuring the stability of the equipment during rolling and preventing imbalance even during movement, avoiding shaking that may affect the test accuracy. The rollers reduce floor wear, avoid direct friction, protect the workshop floor material, and reduce maintenance costs, especially when the layout needs to be frequently adjusted. If a wheel is damaged or needs to be replaced, the bolt-fixed bottom foot design allows for individual replacement without affecting the overall equipment structure, reducing the repair difficulty and time and improving the maintenance efficiency.

[0017] Further, a fixing block is also provided on the battery cell tray, and the fixing block is used to fix the lithium battery cells in the battery cell tray.

[0018] The fixing block ensures the precise position of the battery cells in the tray, prevents movement or tilting, maintains a consistent distance between the battery cells, improves the accuracy and efficiency of the test. The fixing block helps isolate the battery cells, avoids electrical contact, reduces the risk of short circuit, and ensures safety during the test process, which is particularly important in a dynamic environment. By maintaining an appropriate spacing through the fixing block, the air circulation between the battery cells is optimized, heat dissipation is improved, heat accumulation is reduced, the lifespan of the battery cells and the overall reliability of the equipment are extended. The fixing block design is easy to disassemble, replace, and is convenient for adapting to the testing of battery cells of different sizes, simplifies the operation, improves the flexibility of the production line and the responsiveness to market changes.

[0019] The utility model has the following beneficial effects:

[0020] 1. By independently driving the barcode scanner to move on the X, Y, and Z axes through the X, Y, and Z axis servo motors, especially with the Z axis motor installed on the barcode scanner bracket, the barcode scanner can accurately move in three-dimensional space, align with battery cells at different positions for fast and accurate barcode scanning, improving the accuracy and efficiency of the test;

[0021] 2. By electrically connecting the control buttons to the driving components, starting each driving motor with one key, the integrated driving motors and the barcode scanner bracket simplify the complexity of lithium battery cell testing and improve the production efficiency;

[0022] 3. The slide rail limit blocks, bottom feet, and rollers ensure the safety and stability of the equipment and the battery cell tray, reduce accidents, improve the operation safety, and facilitate the movement of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the frame diagram of the utility model.

[0024] Figure 2 is the structural schematic diagram of the utility model.

[0025] Figure 3 is Figure 2 the enlarged view of part A in

[0026] Figure 4 It is a schematic structural diagram of the support of the present utility model, the X-axis support, the Y-axis support and the barcode scanner support.

[0027] Figure 5 It is a schematic structural diagram of the X-axis support, the Y-axis support and the barcode scanner support of the present utility model.

[0028] Figure 6 It is a schematic structural diagram of the battery cell tray of the present utility model.

[0029] Among them are: 1-frame; 11-foot; 12-roller; 2-rail; 21-limit block; 3-battery cell tray; 4-probe; 5-barcode scanner support; 51-barcode scanner; 6-driving component; 61-X-axis driving motor; 62-Y-axis driving motor; 63-Z-axis driving motor; 7-fixed block; 8-support; 81-X-axis support; 82-Y-axis support; 83-driving track; 9-control button; 10-protective cover. Specific implementation manners

[0030] The present utility model will be further described in detail below in conjunction with the drawings and specific preferred implementation manners.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left side", "right side", "upper part", "lower part", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not represent the importance of components, so it cannot be understood as a limitation to the present utility model. The specific dimensions adopted in this embodiment are only for illustrating the technical solution by way of example, and do not limit the protection scope of the present utility model.

[0032] Refer to Figure 1 、 Figure 2 、 Figure 3, it can be known that an OCV device compatible with lithium batteries of multiple sizes. The frame 1 constitutes the main structure of the device. Four pairs of two groups of slide rails 2 are provided on the frame 1. A limiting block 21 is provided between each group of slide rails 2. A limiting block 21 is provided at the front and rear ends of each group of slide rails 2. A battery cell tray 3 is provided on the slide rails. A support 8 is also provided on the frame 1. Two groups of Y-axis supports 82 are provided between the supports 8. A group of X-axis supports 81 is provided between the two groups of Y-axis supports 82. A barcode scanner support 5 is provided on the X-axis support 81. A probe 4 is also provided on the barcode scanner support 5. An X-axis drive motor 61 is provided on the X-axis support 81. A Y-axis drive motor 62 is provided on the right-end Y-axis support 82. A Z-axis drive motor 63 is provided on the barcode scanner support 5. A transmission track 83 is provided at the connection of the X-axis support 81, Y-axis support 82 and barcode scanner support 5. A control button 9 is provided at the front end of the frame. A barcode scanner 51 and a probe 4 are provided on the barcode scanner support 5. A protective cover 10 is provided on the upper part of the frame 1.

[0033] In one embodiment, when the OCV device is in the working area, the protective cover 10 can prevent dust from falling on the battery cells and affecting the test results. The frame 1 serves as the main body. Four slide rails 2 have been installed on the frame, in two groups. The limiting blocks 2 are provided to ensure the stable sliding of the battery cell tray 3. Battery cells of different sizes are placed in the battery cell tray 3 and positioned through the fixing blocks. The slide rails 2 and the limiting blocks 2 are used to ensure the correct positioning of the battery cells. The operator presses the control button 9 at the front end, and the X-axis drive motor 61, Y-axis motor 62, and Z-axis motor 3 are started in sequence to provide power for the barcode scanner support 5. The barcode scanner support 5 moves along the X and Y axes driven by the X-axis drive motor 61 and Y-axis drive motor 62. The Z-axis drive motor 63 adjusts the vertical height of the barcode scanner support 5 and is guided to the position of the battery cell through the transmission track 83. The probe 4 contacts the battery cell. The barcode scanner 51 is installed on the barcode scanner support 5 to automatically scan the barcode on the battery cell. At the same time, the probe 4 measures the voltage of the battery cell, and the data is transmitted back to the device for processing. After the data is processed, the test results of the battery cells are recorded and analyzed by the system to determine whether they are qualified and fed back to the production process. After the work is completed, the battery cell tray 3 can be dragged along the slide rails 2 to the initial position, repeating the steps, or replacing the battery cell tray 3 to continue the operation, improving the continuity;

[0034] In one embodiment, the feet 11 and the rollers 12 at the bottom of the frame 1 are connected to the bottom of the frame 1 by bolts. The feet 11 are connected to the frame 1 by two screws. Adjusting the bolt on the upper part of the feet 11 can make the length of the feet 11 shorter than that of the rollers 12. At this time, only the rollers 12 contact the ground, and the staff can push the entire device to the designated working position. After reaching the designated area, adjust the bolts on the upper and lower parts of the feet 11 so that the feet 11 contact the ground. At this time, only the feet 11 support the entire device, and the device is fixed in position.

[0035] Refer to Figure 4 and Figure 5, it can be seen that a total of 4 supports 8 are provided and divided into left and right groups. The Y-axis support 82 is arranged on the two groups of supports 8, and a track is arranged on the Y-axis support 82 so that the X-axis support 81 can slide in the Y-axis direction on the Y-axis support. A transmission track 83 is arranged on the track of the Y-axis support 82 to facilitate the movement of the X-axis support 81. The barcode scanner support 5 is slidably arranged on the X-axis support 81. A transmission track 83 is also arranged on the track of the X-axis support 81 to facilitate the movement of the barcode scanner support 5 on the X-axis support 81. A transmission track 83 is also arranged on the barcode scanner support 5 to facilitate the movement of the barcode scanner 51 on the barcode scanner support 5, that is, in the Z-axis direction. Among them, an X-axis drive motor 61 is arranged on the X-axis support 81, a Y-axis drive motor 62 is arranged on the Y-axis support 82, and a Z-axis drive motor 63 is arranged on the barcode scanner support 5.

[0036] In one embodiment, the Y-axis drive motor 62 installed on the Y-axis support 81 is responsible for driving the entire X-axis support 81 to slide in the Y-axis direction along the track of the Y-axis support 82, thereby driving the barcode scanner 51 to move in the Y-axis direction. The X-axis drive motor 61 is located on the X-axis support 81 and drives the barcode scanner support 5 to move along the X-axis support 81 in the X-axis direction to drive the barcode scanner 51 to move. The Z-axis drive motor 63 on the barcode scanner support 5 drives the barcode scanner 51 to move in the Z-axis direction. The X-axis drive motor 61, the Y-axis drive motor 62, and the Z-axis drive motor are respectively controlled by the control button 9, and the barcode scanner 51 is adjusted to move in different directions as needed to align with the battery cell to be tested. The probe 4 on the barcode scanner support 5 also tests the battery cell under the drive of the barcode scanner support 5. Transmission tracks 83 are arranged on the tracks of the X-axis support 81, the Y-axis support 82, and the barcode scanner support 5. These tracks help the X-axis support 61 and the barcode scanner support 5 to slide smoothly in the X, Y, and Z directions respectively, reduce friction, realize automation during the sliding process, and improve the positioning accuracy and testing efficiency.

[0037] In one embodiment, the transmission track 83 is meshed with the gear shaft of the X-axis drive motor 61. When the gear of the X-axis drive motor 61 rotates, the transmission track 83 rotates accordingly. Since the transmission track 83 is embedded in the X-axis support 81, the transmission track 83 will not fall off the X-axis support 81 (the specific driving principle is prior art and will not be elaborated here). The barcode scanner support 5 moves in the X-axis direction under the drive of the X-axis drive motor 61. The movement principles of the Y-axis support 82 and the barcode scanner support 5 are the same as that of the X-axis support 81. The barcode scanner 51 and the probe 4 move on the X-axis, Y-axis, and Z-axis under the drive of the drive assembly 6 to realize the barcode scanning and testing of the battery cell.

[0038] Referring to Figure 6 , it can be seen that the lithium battery cell is placed in the cell tray 3. Handles are arranged at the head and tail ends of the cell tray 3, and fixing blocks 7 are arranged at the left and right ends of the cell tray 3.

[0039] In one embodiment, a groove is formed in the upper part of the battery cell tray 3 for placing the fixing block 7. The fixing block 7 can be replaced with a suitable fixing block 7 according to different lithium batteries. During operation, the operator first places the battery cell tray 3 on the slide rail 2 through the handle. The battery cell tray 3 is located between the limit blocks 21 to prevent the battery cell tray 3 from falling off the slide rail 2 during movement. After the battery cell tray 3 is placed, the fixing block 7 is installed in the groove of the battery cell tray 3. Finally, the lithium battery is placed between the fixing blocks 7. The operator pushes the battery cell tray under the barcode scanner support 5 and controls the barcode scanner 51 and the probe 4 on the barcode scanner support 5 to test the lithium battery cells through the control button 9.

[0040] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept scope of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. An OCV device compatible with lithium batteries of multiple sizes, characterized in that: It includes a frame, a slide rail, a battery cell tray, a support, an X-axis bracket, a Y-axis bracket, a barcode scanner bracket, a barcode scanner, a probe and a drive assembly; the slide rail, the battery cell tray and the support are arranged on the frame, the X-axis bracket, the Y-axis bracket and the barcode scanner bracket are arranged on the support, the barcode scanner bracket is connected to the X-axis bracket, the probe and the barcode scanner are further arranged on the barcode scanner bracket, the drive assembly is used to drive the barcode scanner and the probe to move in the Z-axis direction where the X-axis bracket, the Y-axis bracket and the barcode scanner bracket are located, the drive assembly includes an X-axis drive motor, a Y-axis drive motor and a Z-axis drive motor, the X-axis drive motor is arranged on the X-axis bracket, the Y-axis drive motor is arranged on the Y-axis bracket, and the Z-axis drive motor is arranged on the barcode scanner bracket.

2. The OCV device compatible with lithium batteries of multiple sizes according to claim 1, characterized in that: A total of two groups of the Y-axis brackets are arranged on the support, the X-axis bracket is slidably arranged between the Y-axis brackets, and the barcode scanner bracket is slidably arranged on the X-axis bracket.

3. The OCV device compatible with lithium batteries of multiple sizes according to claim 1, characterized in that: Drive tracks are further arranged on the X-axis bracket, the Y-axis bracket and the barcode scanner bracket, and a protective cover is further arranged on the frame.

4. An OCV device compatible with lithium batteries of multiple sizes according to claim 1, characterized in that: A control button is further arranged at the head end of the frame, the control button is electrically connected to the X-axis drive motor, the Y-axis drive motor and the barcode scanner bracket, a slide rail is further arranged on the frame, and the battery cell tray is slidably arranged on the slide rail; a limit block is further arranged on the frame, and the limit block is used to prevent the battery cell tray from falling off the slide rail during movement.

5. An OCV device compatible with lithium batteries of multiple sizes according to claim 4, characterized in that: The limit block is welded to the frame, and a total of four slide rails are arranged, and the limit block is arranged between the slide rails.

6. The OCV device compatible with lithium batteries of multiple sizes according to claim 1, characterized in that: The feet and the rollers are further arranged at the bottom of the frame, and the rollers and the feet are connected to the bottom of the frame by bolts.

7. An OCV device compatible with lithium batteries of multiple sizes according to claim 1, characterized in that: Fixing blocks are further arranged on the battery cell tray, and the fixing blocks are used to fix the lithium battery cells in the battery cell tray.

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