Battery internal resistance batch testing and sorting equipment

Abstract

The battery internal resistance batch testing and sorting equipment comprises a supporting frame, an insulating plate, a plurality of carrying plates, a first conveying line, a resistance measuring mechanism, a second conveying line, a sorting box, a dust cover, a numerical control screen and a controller, the insulating plate is arranged on the upper portion of the supporting frame, and the carrying plates are arranged at the bottom of the supporting frame; a first conveying line, a resistance measuring mechanism and a second conveying line are sequentially arranged on the insulating plate, the dustproof cover is arranged on the insulating plate and located on the upper portion of the second conveying line, the sorting box is located on one side of the second conveying line, a numerical control screen is further arranged on the dustproof cover, and a controller is installed at the rear end of the numerical control screen. The controller is further electrically connected with a resistance measuring mechanism, and the resistance measuring mechanism detects the internal resistance value of the battery. And after the controller receives the internal resistance data of the to-be-detected battery, the corresponding second electric cylinder is controlled to push the battery to the storage groove, the detection and sorting efficiency is higher, and a numerical control screen can know process information at any time.

Description

Technical Field

[0001] This utility model relates to the field of battery packaging, and in particular to a batch testing and sorting device for battery internal resistance. Background Technology

[0002] Currently, the demand for cylindrical batteries is constantly increasing. Traditionally, after the production process, manual testing of the battery's internal resistance is required, mainly using a resistance meter. Traditional manual testing is not only inefficient, but also cannot guarantee that each test will be free of malfunctions or incomplete, thus compromising product quality. Secondly, existing machine testing is not only expensive in terms of equipment cost, but also has high maintenance and upkeep costs. Furthermore, the resistance testing process only distinguishes between compliant and non-compliant batteries, without sorting batteries with different resistance values. Sorting should be done after the resistance test, which further improves work efficiency. The sorting results can also be used to evaluate the product quality within the same batch of batteries. Utility Model Content

[0003] The main purpose of this invention is to solve the problems of low efficiency in battery internal resistance detection and limited screening categories to only two types: compliant and non-compliant. This invention can sort batteries with different internal resistances from the same batch and store them in categories.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A batch battery internal resistance testing and sorting device includes a support frame, an insulating plate, a carrying plate, a first conveyor line, a resistance measuring mechanism, a second conveyor line, a sorting box, a dust cover, a CNC screen, and a controller. The upper part of the support frame is equipped with an insulating plate, and several carrying plates are respectively arranged at the bottom of the support frame. The first conveyor line, the resistance measuring mechanism, and the second conveyor line are sequentially arranged on the insulating plate. The dust cover is set on the insulating plate and located above the second conveyor line. The sorting box is located on one side of the second conveyor line and is also located below the dust cover. A CNC screen is also installed on the dust cover, and a controller is installed at the rear end of the CNC screen. The controller is also electrically connected to the resistance measuring mechanism.

[0006] Preferably, the dust cover has an observation window, which is located on one side of the CNC screen.

[0007] Preferably, a guide plate is also provided between the sorting box and the second conveyor line. The guide plate is fixed to the insulating plate by positioning screws at both ends, and several paddles are movably installed on the guide plate.

[0008] Preferably, the sorting box is further provided with several storage slots, and the lever is located inside the corresponding storage slot.

[0009] Preferably, a first motor is provided at the rear end of the first conveyor line, the first motor is electrically connected to the controller, and connecting arms are also provided on both sides of the first conveyor line. A connecting plate is fixed between the connecting arms, and a monitor is provided on the connecting plate. The monitor is electrically connected to the CNC screen.

[0010] Preferably, the resistance measuring mechanism includes a moving mechanism and a detection mechanism. The moving mechanism includes a support column, a fixed plate, a moving seat, a slide groove, a rack, a gear, a reducer, and a second motor. The fixed plate is fixedly mounted on an insulating plate via the support column, and the moving seat is fitted onto the fixed plate. A slide groove is also formed on the outer side of the fixed plate, and a rack is fitted inside the slide groove. A gear is also installed on the outer side of the fixed plate, located above the slide groove, and the gear meshes with the rack. The reducer and the second motor are fixed to the insulating plate, and the second motor cooperates with the reducer. The output end of the reducer is connected to the gear. The bottom of the moving seat is fixedly connected to the rack. A detection mechanism is also provided on the moving seat, and the detection mechanism is located on the other side of the fixed plate.

[0011] Preferably, the detection mechanism includes a horizontal plate, a resistance measuring instrument, a fixed arm, a movable arm, an electric cylinder, a side plate, and a detection unit. The horizontal plate is mounted on a movable seat. The resistance measuring instrument is mounted on the upper part of the horizontal plate. The side plate, the movable arm, and the fixed arm are respectively arranged below the horizontal plate. The fixed arm is close to the fixed plate. The movable arm is movably connected to the bottom of the horizontal plate. Detection units are arranged inside the opposing surfaces of the fixed arm and the movable arm. The detection unit is electrically connected to the resistance measuring instrument. The electric cylinder is fixedly connected to the outer side of the movable arm. The tail of the electric cylinder is connected to the side plate.

[0012] Preferably, one side of the second conveyor line is further provided with several second electric cylinders, and the telescopic end of the second electric cylinder is provided with a push block, which is aligned with the corresponding storage slot on the sorting box.

[0013] Preferably, anti-slip rings are provided at all four corners of the bottom of the support frame.

[0014] The beneficial effects of the present invention are:

[0015] 1. After receiving the instruction from the controller, the moving mechanism moves to the first conveyor line, and then clamps the battery to be tested through the detection mechanism. The two ends of the battery are in contact with the detection unit, and the internal resistance value of the battery under the specified voltage is detected by the resistance measuring instrument. Then, the feedback is sent to the controller. After receiving the information, the controller controls the moving mechanism to move to the second conveyor line. The second conveyor line then transports the battery to the designated position. The second electric cylinder on the outside of the second conveyor line pushes the battery into the designated storage slot. The storage slot can hold batteries with the same internal resistance level. In this way, batteries of the same level will be stored together, which achieves the function of sorting.

[0016] 2. The storage level instructions of the storage slot are preset in the controller. After the controller receives the internal resistance data of the battery to be tested, it will only control the second electric cylinder corresponding to the storage level of the battery to work. This can push the battery into the storage slot, making the control more precise and the sorting efficiency higher. The process information can be viewed at any time through the CNC screen. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a batch battery internal resistance testing and sorting equipment;

[0018] Figure 2 A top view of the battery internal resistance batch testing and sorting equipment.

[0019] Figure 3 A side view of a battery internal resistance batch testing and sorting equipment.

[0020] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0021] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure along line BB;

[0022] Figure 6 for Figure 1 Enlarged structural diagram of section A in the middle;

[0023] Figure 7 for Figure 4 Enlarged structural diagram of section B in the middle;

[0024] In the diagram: 1. Support frame; 2. Insulating plate; 3. Carrying plate; 4. First conveyor line; 5. Resistance measuring mechanism; 6. Second conveyor line; 7. Sorting box; 8. Dust cover; 9. CNC screen; 10. Controller; 11. Observation window; 12. Guide plate; 13. Positioning screw; 14. Paddle; 15. Storage slot; 16. First motor; 17. Connecting arm; 18. Connecting plate; 19. Monitor; 51. Moving mechanism; 510. Support column; 511. Fixed plate; 512. Moving seat; 513. Slide; 514. Rack; 515. Gear; 516. Reducer; 517. Second motor; 52. Detection mechanism; 520. Horizontal plate; 521. Resistance measuring instrument; 522. Fixed arm; 523. Movable arm; 524. First electric cylinder; 525. Side plate; 526. Detection unit; 20. Second electric cylinder; 21. Push block; and 22. Anti-slip ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1:

[0027] Reference Figure 1-7 A batch battery internal resistance testing and sorting device includes a support frame 1, an insulating plate 2, a carrying plate 3, a first conveyor line 4, a resistance measuring mechanism 5, a second conveyor line 6, a sorting box 7, a dust cover 8, a CNC screen 9, and a controller 10. The upper part of the support frame 1 is provided with the insulating plate 2, and several carrying plates 3 are respectively provided at the bottom of the support frame 1. The first conveyor line 4, the resistance measuring mechanism 5, and the second conveyor line 6 are sequentially arranged on the insulating plate 2. The dust cover 8 is arranged on the insulating plate 2 and is located above the second conveyor line 6. The sorting box 7 is located on one side of the second conveyor line 6 and is also located below the dust cover 8. The dust cover 8 is also provided with the CNC screen 9, and the controller 10 is installed at the rear end of the CNC screen 9. The controller 10 is also electrically connected to the resistance measuring mechanism 5. When the first conveyor line 4 transports the battery to be tested to the designated position, the controller 10 will activate the resistance measuring mechanism 5 to detect the internal resistance of the battery. After detection, the data is fed back to the controller 10. The controller 10 then controls the resistance measuring mechanism 5 to transport the battery to the second conveyor line 6. When the battery transported by the second conveyor line 6 reaches the position of the storage slot 15 where the battery should be placed, the second electric cylinder on the outside of the second conveyor line 6 pushes the battery into the designated storage slot 15, completing the sorting. The applied voltage of the battery to be tested can be set at any time through the CNC screen 9, and commands can be issued to the entire controller 10.

[0028] The dust cover 8 has an observation window 11 located on one side of the CNC screen 9. The dust cover 8 is mainly for reducing dust. A guide plate 12 is also provided between the sorting box 7 and the second conveyor line 6. The guide plate 12 is fixed to the insulating plate 2 by positioning screws 13 at both ends. Several levers 14 are movably installed on the guide plate 12.

[0029] The sorting box 7 can be pulled out from the bottom of the guide plate 12 at any time, which makes it convenient for workers to transfer the batteries after the storage slot 15 is full. The purpose of the lever 14 is to prevent the batteries from falling out when the batteries in the storage slot 15 are removed.

[0030] The sorting box 7 is also provided with several storage slots 15, and the lever 14 is located inside the corresponding storage slot 15. A first motor 16 is provided at the rear end of the first conveyor line 4. The first motor 16 is electrically connected to the controller 10. Connecting arms 17 are also provided on both sides of the first conveyor line 4. A connecting plate 18 is fixed between the connecting arms 17. A monitor 19 is provided on the connecting plate 18. The monitor 19 is electrically connected to the CNC screen 9. The purpose of the monitor 19 is mainly to monitor the resistance measuring mechanism 5 during the process. Once a fault occurs during the detection process, it can be seen directly through the CNC screen 9.

[0031] Reference Figure 2 and Figure 6 The resistance measuring mechanism 5 includes a moving mechanism 51 and a detection mechanism 52. The moving mechanism 51 includes a support column 510, a fixed plate 511, a moving seat 512, a slide groove 513, a rack 514, a gear 515, a reducer 516, and a second motor 517. The fixed plate 511 is fixedly mounted on the insulating plate 2 by the support column 510, and the moving seat 512 is fitted on the fixed plate 511. A slide groove 513 is also formed on the outer side of the fixed plate 511, and a rack 514 is fitted in the slide groove 513. The fixed plate 510... A gear 515 is also installed on the outer side of 1. The gear 515 is located above the slide groove 513, and the gear 515 meshes with the rack 514. The reducer 516 and the second motor 517 are fixed on the insulating plate 2, and the second motor 517 cooperates with the reducer 516. The output end of the reducer 516 is connected to the gear 515. The bottom of the movable seat 512 is fixedly connected to the rack 514. A detection mechanism 52 is also provided on the movable seat 512, and the detection mechanism 52 is located on the other side of the fixed plate 511. (Refer to...) Figure 7 The detection mechanism 52 includes a horizontal plate 520, a resistance measuring instrument 521, a fixed arm 522, a movable arm 523, a first electric cylinder 524, a side plate 525, and a detection unit 526. The horizontal plate 520 is mounted on a movable seat 512. The resistance measuring instrument 521 is mounted on the upper part of the horizontal plate 520. The side plate 525, the movable arm 523, and the fixed arm 522 are respectively arranged below the horizontal plate 520. The fixed arm 522 is close to the fixed plate 511. The movable arm 523 is movably connected to the bottom of the horizontal plate 520. Detection units 526 are arranged inside the opposing surfaces of the fixed arm 522 and the movable arm 523. The detection unit 526 is electrically connected to the resistance measuring instrument 521. The first electric cylinder 524 is fixedly connected to the outer side of the movable arm 523. The tail of the first electric cylinder 524 is connected to the side plate 525.

[0032] Internal resistance testing steps:

[0033] The controller 10 starts the second motor 517, which controls the gear 515 on the fixed plate 511 to rotate. During the rotation, the gear 514 moves to the left. At this time, the moving seat 512 drives the detection mechanism 52 to the top of the battery. The detection mechanism 52 then begins to detect. Before detection, the controller 10 presets the applied voltage, and then the resistance measuring instrument 521 performs the detection. During detection, the battery to be tested is first clamped. The first electric cylinder 524 is controlled to move the movable arm 523 along the horizontal plate 520 toward the fixed arm 522. At this time, both ends of the battery to be tested are clamped by the fixed arm 522 and the movable arm 523. Then, the resistance measuring instrument 521 and the detection unit 526 detect the internal resistance of the battery. After the detection, the internal resistance data is fed back to the controller 10. The controller 10 then controls the battery with the internal resistance value to move into the designated storage slot 15. This completes the sorting of batteries with different internal resistance values. On one side of the second conveyor line 6, there are also several second electric cylinders 20. The telescopic end of the second electric cylinder 20 is also provided with a push block 21, which is aligned with the corresponding storage slot 15 on the sorting box 7. Anti-slip rings 22 are provided at the four corners of the bottom of the support frame 1.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A batch testing and sorting device for battery internal resistance, comprising a support frame (1), characterized in that: It also includes an insulating plate (2), a carrying plate (3), a first conveyor line (4), a resistance measuring mechanism (5), a second conveyor line (6), a sorting box (7), a dust cover (8), a CNC screen (9), and a controller (10). The upper part of the support frame (1) is provided with an insulating plate (2), and several carrying plates (3) are respectively provided at the bottom of the support frame (1). The first conveyor line (4), the resistance measuring mechanism (5), and the second conveyor line (6) are arranged sequentially on the insulating plate (2). The dust cover (8) is set on the insulating plate (2) and is located above the second conveyor line (6). The sorting box (7) is located on one side of the second conveyor line (6) and is also located below the dust cover (8). The dust cover (8) is also provided with a CNC screen (9). The controller (10) is installed at the rear end of the CNC screen (9). The controller (10) is also electrically connected to the resistance measuring mechanism (5).

2. The battery internal resistance batch testing and sorting equipment according to claim 1, characterized in that: An observation window (11) is provided on the dust cover (8), and the observation window (11) is located on one side of the CNC screen (9).

3. The battery internal resistance batch testing and sorting equipment according to claim 1, characterized in that: A guide plate (12) is also provided between the sorting box (7) and the second conveyor line (6). The guide plate (12) is fixed to the insulating plate (2) by positioning screws (13) at both ends. Several paddles (14) are movably installed on the guide plate (12).

4. The battery internal resistance batch testing and sorting equipment according to claim 3, characterized in that: The sorting box (7) is also provided with several storage slots (15), and the paddle (14) is located inside the corresponding storage slot (15).

5. The battery internal resistance batch testing and sorting equipment according to claim 1, characterized in that: A first motor (16) is provided at the rear end of the first conveyor line (4). The first motor (16) is electrically connected to the controller (10). Connecting arms (17) are also provided on both sides of the first conveyor line (4). A connecting plate (18) is fixed between the connecting arms (17). A monitor (19) is provided on the connecting plate (18). The monitor (19) is electrically connected to the CNC screen (9).

6. The battery internal resistance batch testing and sorting equipment according to claim 1, characterized in that: The resistance measuring mechanism (5) includes a moving mechanism (51) and a detection mechanism (52). The moving mechanism (51) includes a support column (510), a fixed plate (511), a moving seat (512), a slide groove (513), a rack (514), a gear (515), a reducer (516), and a second motor (517). The fixed plate (511) is fixedly mounted on the insulating plate (2) by the support column (510), and the moving seat (512) is fitted on the fixed plate (511). A slide groove (513) is also opened on the outer side of the fixed plate (511), and a rack (514) is fitted in the slide groove (513). A gear (515) is also installed on the outside of the plate (511). The gear (515) is located above the slide groove (513), and the gear (515) meshes with the rack (514). The reducer (516) and the second motor (517) are fixed on the insulating plate (2), and the second motor (517) cooperates with the reducer (516). The output end of the reducer (516) is connected to the gear (515). The bottom of the movable seat (512) is fixedly connected to the rack (514). A detection mechanism (52) is also provided on the movable seat (512), and the detection mechanism (52) is located on the other side of the fixed plate (511).

7. The battery internal resistance batch testing and sorting equipment according to claim 6, characterized in that: The detection mechanism (52) includes a horizontal plate (520), a resistance measuring instrument (521), a fixed arm (522), a movable arm (523), a first electric cylinder (524), a side plate (525), and a detection unit (526). The horizontal plate (520) is mounted on a movable base (512). The resistance measuring instrument (521) is mounted on the upper part of the horizontal plate (520). The side plate (525), the movable arm (523), and the fixed arm (522) are respectively arranged below the horizontal plate (520). The fixed arm (522) is close to the fixed plate (511), the movable arm (523) is movably connected to the bottom of the horizontal plate (520), and a detection unit (526) is provided inside the opposite surface of the fixed arm (522) and the movable arm (523). The detection unit (526) is electrically connected to the resistance measuring instrument (521). The outer side of the movable arm (523) is fixedly connected to the first electric cylinder (524), and the tail of the first electric cylinder (524) is connected to the side plate (525).

8. The battery internal resistance batch testing and sorting equipment according to claim 1, characterized in that: The second conveyor line (6) also has several second electric cylinders (20) on one side, and the telescopic end of the second electric cylinder (20) is also provided with a push block (21).

9. The battery internal resistance batch testing and sorting equipment according to claim 1, characterized in that: Anti-slip rings (22) are provided at the four bottom corners of the support frame (1).

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