Lithium battery cell matching equipment

Abstract

The utility model provides lithium battery cell grouping equipment, and belongs to the technical field of battery production. Comprising a workbench; the detection tables are used for mounting to-be-detected battery cells and are arranged on the top of the working table in parallel; the movable seat is movably connected to the top of the workbench and located above the detection table, a detection device is arranged at the bottom of the movable seat and used for detecting the internal resistance of the to-be-detected battery cell, and an indicator lamp is arranged at the top of the movable seat and used for indicating the detection result of the to-be-detected battery cell; the driving assembly is arranged in the bottom cavity and used for driving the movable base to linearly move in the direction of the table top of the workbench. According to the utility model, the plurality of detection tables are arranged in parallel, and the movable seat and the detection device on the movable seat are arranged, so that the rapid and continuous detection of the battery cell is realized, the detection efficiency is obviously improved, the detection device can accurately measure the internal resistance of the battery cell, the detection result is visually displayed through the indicator lamp, and the detection accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a lithium battery cell assembly device. Background Art

[0002] In the lithium battery manufacturing industry, cell assembly is a crucial step. The quality of cell assembly directly determines the overall performance and stability of the lithium battery pack.

[0003] However, in the prior art, when pairing battery cells, the operator typically needs to manually place the detection probes of a testing device (i.e., an internal resistance meter) against the battery cells to be tested in order to measure the internal resistance of the battery cells. During this process, the operator needs to align the detection probes of the internal resistance meter with both ends of the battery cells one by one and ensure close contact with the battery cells to obtain accurate test results. However, due to the potential differences in the shape, size, and position of battery cells, the operator needs to spend a considerable amount of time and effort adjusting the position and angle of the internal resistance meter's detection probes to ensure proper alignment with the battery cells. This not only increases the operator's workload but can also reduce detection efficiency. Furthermore, when observing the internal resistance meter reading, the operator needs to concentrate to ensure that the internal resistance value of each battery cell is accurately read and recorded. However, since the reading of the internal resistance meter may be affected by many factors (such as light, angle, eyesight, etc.), the operator may misread or miss the reading, which will lead to doubts about the accuracy of the test results. More seriously, since a large number of cells need to be tested during the battery pack assembly process, the operator will perform repetitive work for a long time, which will not only make them easily tired and bored, but may also lead to a decline in test quality due to negligence. This will not only affect the overall performance of the lithium battery pack, but also pose a potential threat to the user's safety.

[0004] Therefore, the present application provides a lithium battery cell assembly device to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a lithium battery cell grouping device to solve the problem of low work efficiency caused by the need for manual detection of cell internal resistance and classification in the existing cell grouping process.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A lithium battery cell assembly device includes: a workbench with a bottom cavity at the bottom; a testing table for mounting cells to be tested, with a plurality of testing tables arranged in parallel on the top of the workbench; a movable seat movably connected to the top of the workbench, and the movable seat is located above the testing table, a detection device is provided at the bottom of the movable seat for detecting the internal resistance of the cell to be tested, and an indicator light is provided on the top of the movable seat for indicating the test result of the cell to be tested; and a drive assembly is arranged inside the bottom cavity for driving the movable seat to move linearly along the workbench surface.

[0008] Preferably, a mounting groove is provided on the top of the test bench for accommodating the battery cell to be tested, and fixed contacts and elastic contacts are respectively provided at both ends of the mounting groove. The fixed contacts and elastic contacts are arranged to abut against the two ends of the battery cell to be tested when the battery cell to be tested is installed.

[0009] Preferably, electrode sheets are provided on the outer side walls at both ends of the testing platform, and the electrode sheets are electrically connected to the fixed contacts or elastic contacts at the corresponding end of the testing platform.

[0010] Preferably, side panels are provided at the bottom of both ends of the movable seat, and connecting plates are fixedly connected to two opposite inner side walls of the side panels, and the two connecting plates are symmetrically arranged on the two side panels.

[0011] Preferably, two brushes are symmetrically provided on opposite sides of the two connecting plates, and the two brushes are slidably connected to the ends of the detection platform and are configured to be electrically connected to the electrode sheets at the ends of one of the detection platforms during detection. The brushes are electrically connected to the detection device through wires.

[0012] Preferably, two chute grooves are symmetrically provided on both sides of the workbench near the edge, and are arranged parallel to each other. The chute grooves pass through the upper and lower ends of the workbench surface.

[0013] Preferably, two linear rails arranged parallel to each other are provided on the top of the workbench, and four rollers are rotatably connected to the outer side walls of the two side panels near the bottom ends, and the rollers are rollingly connected to the linear rails.

[0014] Preferably, the driving assembly includes: a motor, fixed at the bottom of the workbench; a screw rod, rotatably connected inside the bottom cavity, and one end of which is connected to the output end of the motor; a movable rod, a threaded hole is opened in the middle position, and the threaded hole is threadedly connected to the screw rod; two sliding rods are provided, and are symmetrically fixed above the two ends of the movable rod, and the top of the sliding rod passes through the slide groove to protrude from the top of the workbench, and is slidably connected to the slide groove.

[0015] Preferably, a side rod is vertically fixedly connected to the outer side wall of the side panel.

[0016] Preferably, a connecting hole is provided on the rod body of the sliding rod protruding from the top of the workbench, and the connecting hole is matched with the side rod in a socket connection.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] 1. By setting up multiple test benches in parallel and equipping them with movable seats and test devices on them, rapid and continuous testing of battery cells is achieved, significantly improving the test efficiency. The test devices can accurately measure the internal resistance of the battery cells and intuitively display the test results through indicator lights, ensuring the accuracy of the test.

[0019] 2. The coordinated design of the electrode sheet and the brush enables a complete current loop to be formed during detection, and the brush always maintains contact with the electrode sheet during the detection process, ensuring the continuity of detection.

[0020] 3. The equipment has a simple and clear structure and is easy to operate, which reduces the difficulty and labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure from another angle;

[0024] Figure 3 This is a schematic structural diagram of the movable seat and its connecting components of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the movable rod and the sliding rod of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the testing platform of the utility model.

[0027] In the figure: 1. Workbench; 2. Bottom cavity; 3. Slide; 4. Linear rail; 5. Testing table; 6. Battery cell to be tested; 7. Movable seat; 8. Indicator light; 9. Electrode sheet; 10. Motor; 11. Screw; 12. Movable rod; 13. Testing device; 14. Side panel; 15. Connecting plate; 16. Brush; 17. Wire; 18. Roller; 19. Side rod; 20. Slide; 21. Connecting hole; 22. Threaded hole; 23. Mounting slot; 24. Fixed contact; 25. Elastic contact.

[0028] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0029] The following describes in detail a lithium battery cell assembly device provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments. For some known technologies, those skilled in the art may also adopt other alternative implementations. Furthermore, the accompanying drawings are provided solely for the purpose of describing the embodiments in greater detail and are not intended to limit the present invention.

[0030] like Figure 1 - Figure 5 As shown, the embodiment of the present invention provides a lithium battery cell assembly device, comprising a workbench 1, which serves as the entire device's support structure and is designed to be durable and sturdy enough to support all components. The workbench 1 has a flat top for easy placement and movement of other components, while a bottom cavity 2 is defined to accommodate the drive components, making the device compact and reducing its footprint. The design of the cavity 2 also allows for heat dissipation and ease of maintenance.

[0031] The test table 5 is used to install the battery cell 6 to be tested. There are several test tables 5, which are arranged side by side on the top of the workbench 1. Each test table 5 is provided with a mounting groove 23 for accommodating the battery cell 6 to be tested. The design of the mounting groove 23 ensures that the battery cell can be placed stably and is not easy to slip.

[0032] The movable seat 7 is movably connected to the top of the workbench 1, and the movable seat 7 is located above the testing platform 5. A detection device 13 is provided at the bottom of the movable seat 7 for detecting the internal resistance of the battery cell 6 to be tested. An indicator light 8 is provided on the top of the movable seat 7 for indicating the test result of the battery cell to be tested. The design of the movable seat 7 enables the detection device 13 to detect the battery cells on each testing platform 5 in turn.

[0033] The driving assembly is arranged inside the bottom cavity 2 and is used to drive the movable seat 7 to move linearly along the surface of the workbench 1.

[0034] like Figure 5As shown, fixed contacts 24 and elastic contacts 25 are respectively provided at both ends of the mounting groove 23. The fixed contacts 24 and the elastic contacts 25 are arranged to abut against both ends of the battery cell 6 to be tested when the battery cell 6 to be tested is installed to achieve electrical connection. The fixed contact 24 remains stationary, while the elastic contact 25 has a certain elasticity, which facilitates the disassembly and assembly of the battery cell and ensures that the two contacts are stably abutted against the battery cell.

[0035] like Figure 1 and Figure 5 As shown, electrode sheets 9 are provided on the outer walls at both ends of the detection platform 5. The electrode sheets 9 are electrically connected to the fixed contacts 24 or elastic contacts 25 at the corresponding end of the detection platform 5. The electrode sheets 9 are made of conductive materials to ensure that the current can be transmitted smoothly.

[0036] like Figure 3 As shown, side panels 14 are provided at the bottom of both ends of the movable seat 7, and connecting panels 15 are fixedly connected to the two opposite inner side walls of the side panels 14, and the two connecting panels 15 are symmetrically arranged on the two side panels 14; two brushes 16 are symmetrically provided on the opposite sides of the two connecting panels 15, and the two brushes 16 are slidably connected to the ends of the detection platform 5, and are configured to be electrically connected to the electrode sheets 9 at the ends of one of the detection platforms 5 during detection, and the brushes 16 are electrically connected to the detection device 13 through the wire 17, and are connected to the two detection terminals of the detection device 13, so that a complete current loop is formed between the detection device 13 and the battery cell 6 to be tested.

[0037] The connecting plate 15 has a certain elasticity, and the brush 16 is processed to push toward the side wall close to the detection platform 5, so that the brush 16 is always in contact with the end wall of the detection platform 5 or the electrode sheet 9 and is slidably connected.

[0038] like Figure 1 As shown, two mutually parallel slide grooves 3 are symmetrically provided near the edge positions on both sides of the workbench 1, and the slide grooves 3 pass through the upper and lower ends of the workbench 1; two mutually parallel linear rails 4 are provided on the top of the workbench 1, and four rollers 18 are rotatably connected to the outer walls of the two side panels 14 near the bottom ends, and the rollers 18 are rollingly connected with the linear rails 4. The rollers 18 are made of wear-resistant material to reduce friction and wear. The design of the linear rails 4 enables the movable seat 7 to move smoothly along the predetermined track.

[0039] like Figure 2As shown, the driving assembly includes: a motor 10, which is fixed at the bottom of the workbench 1 and provides power for the driving assembly. The motor 10 adopts a stepping motor or a servo motor, which can accurately control the moving speed and position of the movable seat 7; a screw rod 11, which is rotatably connected to the inside of the bottom cavity 2, and one end is connected to the output end of the motor 10. The screw rod 11 adopts a high-precision thread to ensure that the movable seat 7 can move smoothly; a movable rod 12, a threaded hole 22 is opened in the middle position, and the threaded hole 22 is threadedly connected to the screw rod 11. The design of the movable rod 12 enables it to move axially along the screw rod 11 as the screw rod 11 rotates; two sliding rods 20 are provided, and are symmetrically fixed above the two ends of the movable rod 12. The top of the sliding rod 20 passes through the slide groove 3 and protrudes from the top of the workbench 1, and is slidably connected with the slide groove 3. The design of the sliding rod 20 enhances the stability of the movable seat 7 and prevents it from shaking.

[0040] like Figure 3 As shown, a side rod 19 is vertically fixedly connected to the outer wall of the side panel 14; a connecting hole 21 is provided on the rod body of the sliding rod 20 protruding from the top of the workbench 1, and the connecting hole 21 is connected with the side rod 19 in a socket connection, thereby completing the transmission of the movable seat 7 by the driving assembly, so that the movable seat 7 can perform reciprocating linear motion along the predetermined track of the linear rail 4 under the action of the driving assembly.

[0041] The technical solution provided by the present invention is that when assembling battery cells, the battery cells 6 to be tested are first placed in the mounting slots 23 of each test bench 5 in turn, ensuring that both ends of the battery cells are in contact with the fixed contacts 24 and the elastic contacts 25; then the motor 10 is started, and the motor 10 drives the screw rod 11 to rotate, and the movable rod 12 moves up and down as the screw rod 11 rotates, thereby driving the movable seat 7 to move linearly along the top of the workbench 1. When the brush 16 moves to both sides of the first test bench 5, the detection device 13 starts to detect the internal resistance of the battery cells. At the same time, the indicator light 8 displays the test results. If the battery cell is qualified, the green light is on; if the battery cell is unqualified, the red light is on, and the battery cell is removed, and the movable seat 7 continues to move, and the battery cells on each test bench 5 are tested in turn. After the test is completed, the motor 10 is turned off, and the battery cells that have passed the test are taken out for the next step of processing.

[0042] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A lithium battery cell assembly equipment, characterized in that: include: A workbench (1) has a bottom cavity (2) formed at the bottom; A test bench (5) is used to install the battery cell (6) to be tested, and a plurality of the test benches (5) are provided, and the plurality of the test benches (5) are arranged in parallel on top of the workbench (1); A movable seat (7) is movably connected to the top of the workbench (1), and the movable seat (7) is located above the test bench (5); a detection device (13) is provided at the bottom of the movable seat (7) for detecting the internal resistance of the battery cell (6) to be tested; and an indicator light (8) is provided at the top of the movable seat (7) for indicating the test result of the battery cell to be tested; A driving assembly is arranged inside the bottom cavity (2) and is used to drive the movable seat (7) to move linearly along the surface of the workbench (1).

2. The lithium battery cell assembly equipment according to claim 1, characterized in that: The top of the test table (5) is provided with a mounting groove (23) for accommodating the battery cell (6) to be tested. Fixed contacts (24) and elastic contacts (25) are respectively provided at both ends of the mounting groove (23). The fixed contacts (24) and elastic contacts (25) are arranged to abut against both ends of the battery cell (6) to be tested when the battery cell (6) to be tested is installed.

3. The lithium battery cell assembly equipment according to claim 2, characterized in that: Electrode sheets (9) are provided on the outer side walls of both ends of the detection platform (5), and the electrode sheets (9) are electrically connected to the fixed contacts (24) or elastic contacts (25) at the corresponding ends of the detection platform (5).

4. The lithium battery cell assembly equipment according to claim 1, characterized in that: Side plates (14) are provided at the bottom of both ends of the movable seat (7), and connecting plates (15) are fixedly connected to two opposite inner side walls of the side plates (14). The two connecting plates (15) are symmetrically arranged on the two side plates (14).

5. The lithium battery cell assembly equipment according to claim 4, characterized in that: Two brushes (16) are symmetrically provided on opposite sides of the two connecting plates (15). The two brushes (16) are slidably connected to the ends of the detection platform (5) and are configured to be electrically connected to the electrode sheet (9) at the end of one of the detection platforms (5) during detection. The brushes (16) are electrically connected to the detection device (13) via a wire (17).

6. The lithium battery cell assembly equipment according to claim 4, characterized in that: Two chute grooves (3) arranged parallel to each other are symmetrically provided on both sides of the workbench (1) near the edge, and the chute grooves (3) pass through the upper and lower ends of the workbench (1).

7. The lithium battery cell assembly equipment according to claim 4, characterized in that: Two linear rails (4) arranged parallel to each other are provided on the top of the workbench (1), and four rollers (18) are rotatably connected to the outer walls of the two side panels (14) near the bottom ends, and the rollers (18) are in rolling connection with the linear rails (4).

8. The lithium battery cell assembly equipment according to claim 6, characterized in that: The drive assembly includes: A motor (10) is fixed to the bottom of the workbench (1); A screw rod (11) is rotatably connected to the interior of the bottom cavity (2), and one end of the screw rod is connected to the output end of the motor (10); A movable rod (12) is provided with a threaded hole (22) at the middle position, and the threaded hole (22) is threadedly connected to the screw rod (11); Two slide rods (20) are provided and are symmetrically fixedly connected above the two ends of the movable rod (12). The top of the slide rod (20) passes through the slide groove (3) and protrudes from the top of the workbench (1), and is slidably connected with the slide groove (3).

9. The lithium battery cell assembly equipment according to claim 8, characterized in that: A side rod (19) is vertically fixedly connected to the outer side wall of the side plate (14).

10. The lithium battery cell assembly equipment according to claim 9, characterized in that: The sliding rod (20) protrudes from the top of the workbench (1) and is provided with a connecting hole (21). The connecting hole (21) is connected to the side rod (19) in a socket-type manner.

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