Lithium battery batch test platform

Abstract

The utility model relates to the technical field of lithium battery testing, in particular to a lithium battery batch testing platform. A lithium battery batch test platform comprises a base, a controller, a conveying assembly, a supporting frame, a clamping ring, a feeding plate, a discharging plate, a discharging opening, a rotating shaft, a driving motor, a voltage detection assembly, a weighing instrument and a classification assembly, the controller is installed on the right side of the front portion of the base, the supporting frame is connected to the rear side of the top of the base, and the rotating shaft is rotationally connected to the middle of the supporting frame; the upper and lower sides of the rotating shaft are connected with snap rings. Through the arrangement of the overturning plate and the material blocking plate, the stepping motor can be driven by the controller to operate and drive the overturning plate to rotate for qualified and unqualified batteries, so that automatic classified transfer is realized, the qualified batteries are conveyed to a next assembly line through the discharging assembly, and the unqualified batteries are collected and treated by the collecting frame; the dependence on manpower is effectively reduced, the labor cost is obviously reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery testing technology, and in particular to a platform for batch testing lithium batteries. Background Technology

[0002] Lithium-ion batteries are batteries that use lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Due to their high energy density, long lifespan, lightweight design, and relative environmental friendliness, these batteries are widely used in modern electronics, electric vehicles, aerospace, and other fields.

[0003] In the manufacturing process, comprehensive testing of finished batteries is a crucial step in ensuring product quality. These tests typically include electrical performance testing, safety testing, and environmental adaptability testing. Voltage testing is one of the fundamental methods for assessing the health and performance of lithium batteries, helping to understand their state of charge. Simultaneously, weight testing is equally important, ensuring that the weight of each battery produced falls within a predetermined range, thus avoiding quality issues caused by variations in materials or manufacturing processes.

[0004] Traditional testing platforms, while capable of performing multiple tests, have some shortcomings in sorting and processing: On some simple testing platforms, qualified and unqualified batteries still need to be manually separated after testing. This method is complex, requires significant human intervention, is inefficient, and unsuitable for large-scale production. Some medium-level testing platforms may be equipped with simple mechanical devices, such as conveyor belts and push rods, to assist manual sorting. Although these devices can partially alleviate the workload, they still suffer from operational complexity and low efficiency. Utility Model Content

[0005] To overcome the aforementioned shortcomings, the technical problem to be solved is to provide a platform for batch testing of lithium batteries.

[0006] The technical solution of this utility model is as follows: A batch testing platform for lithium batteries includes a base, a controller, a conveying component, a support frame, retaining rings, a feeding plate, a discharging plate, a discharge port, a rotating shaft, a drive motor, a voltage detection component, a weighing instrument, and a sorting component. The controller is installed on the front right side of the base, and the support frame is connected to the rear top of the base. The rotating shaft is rotatably connected to the middle of the support frame, and retaining rings are connected to both the upper and lower sides of the rotating shaft. Openings are opened on the left, right, and front sides of the support frame. The feeding plate is connected to the left opening, the discharging plate is connected to the right opening, and the discharge port is connected to the front opening. The drive motor is connected to the rear top of the base, and the output shaft of the drive motor passes through the support frame and is connected to the rotating shaft. The voltage detection component is located on the rear right side of the support frame, and the weighing instrument is installed on the rear left side of the bottom of the support frame, passing through the bottom of the support frame. The sorting component is located on the support frame, and the conveying component is located on the base. The drive motor and the weighing instrument are both electrically connected to the controller.

[0007] In one embodiment, the retaining ring has five slots spaced apart around its circumference for positioning the battery.

[0008] In one embodiment, the conveying assembly includes a collection frame, a feeding assembly, and a discharging assembly. The collection frame is connected to the front top of the base, and the discharge port is connected to the collection frame. The feeding assembly is installed on the rear left side of the top of the base, and the conveyor belt of the feeding assembly is aligned with the feeding plate. The discharging assembly is installed on the rear right side of the top of the base, and the conveyor belt of the discharging assembly is aligned with the discharging plate. Both the feeding assembly and the discharging assembly are electrically connected to the controller.

[0009] In one embodiment, both the feeding assembly and the discharging assembly use belts as the main conveying structure for transporting batteries.

[0010] In one embodiment, the voltage detection assembly includes an electric push rod, a connecting frame, a voltage measuring instrument, measuring wires, a guide rod, a spring, and a conductive plate. The connecting frame is connected to the rear right side of the support frame, the electric push rod is installed on the rear right side of the connecting frame, and the voltage measuring instrument is installed on the rear left side of the connecting frame. Measuring wires are connected to the upper and lower sides of the voltage measuring instrument. A guide rod is slidably connected to the telescopic rod of the electric push rod, and a conductive plate is connected to the bottom of the guide rod. A conductive plate is also connected to the front side of the bottom of the connecting frame. The bottom of the connecting frame extends through the bottom of the support frame. The two measuring wires are respectively connected to the conductive plates on the same side. A spring is connected between the upper conductive plate and the telescopic rod of the electric push rod. The spring is sleeved on the guide rod. Both the electric push rod and the voltage measuring instrument are electrically connected to the controller.

[0011] In one embodiment, the sorting component includes a baffle plate, a flip plate, a rotating rod, and a stepper motor. The rotating rod is rotatably connected to the opening on the right side of the support frame. Flip plates are connected to both the upper and lower sides of the rotating rod. A stepper motor is installed on the bottom right side of the support frame. The output shaft of the stepper motor is connected to the rotating rod. The stepper motor is electrically connected to the controller. A baffle plate is connected to the opening on the front side of the support frame.

[0012] Beneficial effects: 1. By setting up a flip plate and a baffle plate, the controller can drive the stepper motor to rotate the flip plate to automatically sort and transfer batteries that have passed or failed the test. Qualified batteries are transferred to the next production line through the discharge component, while unqualified batteries are collected and processed by the collection box. This effectively reduces the reliance on manual labor, significantly reduces labor costs, and improves production efficiency.

[0013] 2. The battery is intermittently fed into the support frame by the feeding component, and then limited by the slot on the retaining ring to achieve intermittent rotational transmission. This design can detect voltage and weight, realize batch testing, has a high degree of automation, and improves the accuracy and efficiency of testing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the discharge plate, discharge port, baffle plate, etc. of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the rotating shaft, drive motor, and retaining ring of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the spring, conductive sheet, weighing instrument, etc. of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the flip plate, rotating rod, stepper motor, etc. of this utility model.

[0019] The components in the diagram are labeled as follows: 1-base, 101-controller, 2-collection box, 3-feeding assembly, 4-discharge assembly, 5-support frame, 6-clamping ring, 7-feeding plate, 8-discharge plate, 9-discharge port, 10-baffle plate, 11-rotating shaft, 12-drive motor, 14-electric push rod, 15-connecting frame, 16-voltage measuring instrument, 17-measuring wire, 18-guide rod, 19-spring, 20-conductive sheet, 21-weighing instrument, 22-flipping plate, 23-rotating rod, 24-stepper motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: A batch testing platform for lithium batteries, such as Figure 1-Figure 5As shown, the assembly includes a base 1, a controller 101, a conveying component, a support frame 5, retaining rings 6, a feed plate 7, a discharge plate 8, a discharge port 9, a rotating shaft 11, a drive motor 12, a voltage detection component, a weighing instrument 21, and a sorting component. The controller 101 is mounted on the front right side of the base 1. The support frame 5 is welded to the rear top of the base 1. The rotating shaft 11 is rotatably connected to the center of the support frame 5. Retaining rings 6 are welded to both the upper and lower sides of the rotating shaft 11. Five slots for limiting batteries are spaced apart along the circumference of the retaining rings 6. The edges of the slots are rounded to facilitate the entry and exit of batteries. Openings are provided on the left, right, and front sides of the support frame 5. A feed plate 7 is connected to the opening, a discharge plate 8 is connected to the opening on the right side, and a discharge port 9 is connected to the opening on the front side. A drive motor 12 is bolted to the rear top of the base 1. The output shaft of the drive motor 12 passes through the support frame 5 and is connected to the rotating shaft 11. A voltage detection component is provided on the right rear part of the support frame 5. A weighing instrument 21 for weighing batteries is installed on the rear left side of the bottom of the support frame 5. The weighing instrument 21 passes through the bottom of the support frame 5, and its top surface is at the same height as the bottom of the support frame 5. A sorting component is provided on the support frame 5, and a conveying component is provided on the base 1. Both the drive motor 12 and the weighing instrument 21 are electrically connected to the controller 101.

[0022] like Figure 1 As shown, the conveying assembly includes a collection frame 2, a feeding assembly 3, and a discharging assembly 4. The collection frame 2 for collecting unqualified batteries is connected to the top front side of the base 1, and the discharge port 9 is connected to the collection frame 2. The feeding assembly 3 for feeding batteries is installed on the top left rear side of the base 1. The conveyor belt of the feeding assembly 3 is aligned with the feeding plate 7. The discharging assembly 4 for conveying qualified batteries is installed on the top right rear side of the base 1. The conveyor belt of the discharging assembly 4 is aligned with the discharging plate 8. Both the feeding assembly 3 and the discharging assembly 4 are electrically connected to the controller 101. Both the feeding assembly 3 and the discharging assembly 4 use belts as the main conveying structure for conveying batteries. Baffles are provided on the front and rear sides to ensure that the batteries are conveyed in a straight line.

[0023] like Figure 4As shown, the voltage detection assembly includes an electric push rod 14, a connecting frame 15, a voltage measuring instrument 16, measuring wires 17, a guide rod 18, a spring 19, and a conductive sheet 20. The connecting frame 15 is welded to the rear right side of the support frame 5. The electric push rod 14 is bolted to the rear right side of the connecting frame 15. The voltage measuring instrument 16 for testing battery voltage is mounted on the rear left side of the connecting frame 15. Measuring wires 17 are connected to the upper and lower sides of the voltage measuring instrument 16. A guide rod is slidably connected to the telescopic rod of the electric push rod 14. 18. A conductive sheet 20 is connected to the bottom of the guide rod 18. A conductive sheet 20 is also connected to the front bottom of the connecting frame 15. The bottom of the connecting frame 15 passes through the bottom of the support frame 5. The conductive sheet 20 on the lower side is at the same height as the bottom of the support frame 5. Two measuring wires 17 are connected to the conductive sheet 20 on the same side respectively. A spring 19 is connected between the conductive sheet 20 on the upper side and the telescopic rod of the electric push rod 14. The spring 19 is sleeved on the guide rod 18. The electric push rod 14 and the voltage measuring instrument 16 are both electrically connected to the controller 101.

[0024] like Figure 2 and Figure 5 As shown, the sorting components include a baffle plate 10, a flip plate 22, a rotating rod 23, and a stepper motor 24. The rotating rod 23 is rotatably connected to the opening on the right side of the support frame 5. The flip plate 22 is integrally formed and connected to both the upper and lower sides of the rotating rod 23. In the initial state, the lower flip plate 22 blocks the opening on the right side. The stepper motor 24 is installed on the bottom right side of the support frame 5 by bolts. The output shaft of the stepper motor 24 is connected to the rotating rod 23. The stepper motor 24 is electrically connected to the controller 101. The baffle plate 10 is integrally formed and connected to the front opening of the support frame 5, which can ensure that the battery moved to the front opening can directly enter the discharge port 9.

[0025] During the batch measurement of lithium batteries, the lithium batteries are first conveyed through the feeding assembly 3. When the lithium batteries are conveyed to the feeding plate 7, they are pushed into the support frame 5. After entering the support frame 5, the lithium batteries are limited by the slot on the retaining ring 6. At this time, the output shaft of the drive motor 12 rotates, driving the retaining ring 6 to rotate. The rotation of the retaining ring 6 can push the batteries in the support frame 5 to rotate around the circumference. At the same time, the batteries on the feeding assembly 3 are intermittently conveyed into the support frame 5 and then limited by the slot. When the batteries move to the weighing instrument 21, the weighing instrument 21 detects the batteries and weighs them. The detection data is transmitted to the controller 101.

[0026] After weighing, the retaining ring 6 continues to rotate, pushing the battery onto the connecting bracket 15, where it contacts the lower conductive plate 20. At this point, the drive motor 12 pauses, and the electric push rod 14 starts, extending its telescopic rod to move the guide rod 18 and the upper conductive plate 20 downwards, making contact with the top surface of the lithium battery. The spring 19 acts as a buffer, ensuring good contact between the conductive plate 20 and the battery. The voltage measuring instrument 16 then starts to test the voltage of the lithium battery, and the test results are transmitted to the controller 101. After the test, the telescopic rod of the electric push rod 14 shortens and resets, moving the guide rod 18 and the upper conductive plate 20 upwards and resetting. The spring 19 rebounds and resets, and the retaining ring 6 continues to rotate the battery, moving it further. At the right exit of the support frame 5, if the battery test result is qualified, the controller 101 will start the stepper motor 24. The output shaft of the stepper motor 24 rotates, driving the rotating rod 23 to rotate, which in turn drives the two flip plates 22 to rotate. The lower flip plate 22 no longer blocks the right exit, while the upper flip plate 22, after rotating, will block the retaining ring 6. The retaining ring 6 continues to drive the battery to rotate. At the exit, the battery is blocked by the upper flip plate 22 and guided by the lower flip plate 22, and is pushed onto the discharge plate 8, and then moves to the discharge assembly 4. The discharge assembly 4 starts and transports the battery to the right to the next production line. After the battery is sorted, the stepper motor 24 rotates in reverse, driving the rotating rod 23 and the flip plate 22 to rotate in the opposite direction and reset.

[0027] If the battery test result is unqualified, the stepper motor 24 will not be started. The battery continues to rotate along the retaining ring 6 and moves to the front outlet. The battery is blocked by the baffle plate 10. When the retaining ring 6 rotates again, it will push the battery forward to the discharge port 9 and fall into the collection box 2 along the discharge port 9. This facilitates the unified collection and processing of unqualified batteries, thus realizing the batch testing of batteries.

[0028] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A platform for batch testing lithium batteries, characterized in that, The system includes a base (1), a controller (101), a conveying assembly, a support frame (5), a retaining ring (6), a feed plate (7), a discharge plate (8), a discharge port (9), a rotating shaft (11), a drive motor (12), a voltage detection assembly, a weighing instrument (21), and a sorting assembly. The controller (101) is installed on the front right side of the base (1). The support frame (5) is connected to the rear top of the base (1). The rotating shaft (11) is rotatably connected to the middle of the support frame (5). Retaining rings (6) are connected to both the upper and lower sides of the rotating shaft (11). The support frame (5) has openings on the left, right, and front sides. The feed plate (7) is connected to the left opening. The material plate (7) has a discharge plate (8) connected to the opening on the right side and a discharge port (9) connected to the opening on the front side. The drive motor (12) is connected to the top rear side of the base (1). The output shaft of the drive motor (12) passes through the support frame (5) and is connected to the rotating shaft (11). A voltage detection component is provided on the rear right side of the support frame (5). A weighing instrument (21) is installed on the bottom left rear side of the support frame (5). The weighing instrument (21) passes through the bottom of the support frame (5). A sorting component is provided on the support frame (5). A conveying component is provided on the base (1). The drive motor (12) and the weighing instrument (21) are both electrically connected to the controller (101).

2. The batch testing platform for lithium batteries as described in claim 1, characterized in that, The retaining ring (6) has five slots spaced apart around its circumference to limit the battery position.

3. The batch testing platform for lithium batteries as described in claim 2, characterized in that, The conveying assembly includes a collection frame (2), a feeding assembly (3) and a discharging assembly (4). The collection frame (2) is connected to the front top of the base (1), and the discharge port (9) is connected to the collection frame (2). The feeding assembly (3) is installed on the rear left top of the base (1). The conveyor belt of the feeding assembly (3) is aligned with the feeding plate (7). The discharging assembly (4) is installed on the rear right top of the base (1). The conveyor belt of the discharging assembly (4) is aligned with the discharging plate (8). Both the feeding assembly (3) and the discharging assembly (4) are electrically connected to the controller (101).

4. The batch testing platform for lithium batteries as described in claim 3, characterized in that, Both the feeding assembly (3) and the discharging assembly (4) use belts as the main conveying structure to transport batteries.

5. A batch testing platform for lithium batteries as described in claim 4, characterized in that, The voltage detection assembly includes an electric push rod (14), a connecting frame (15), a voltage measuring instrument (16), a measuring wire (17), a guide rod (18), a spring (19), and a conductive sheet (20). The connecting frame (15) is connected to the right rear of the support frame (5). The electric push rod (14) is installed on the right rear of the connecting frame (15). The voltage measuring instrument (16) is installed on the left rear of the connecting frame (15). The measuring wire (17) is connected to the upper and lower sides of the voltage measuring instrument (16). The electric push rod (14) has a sliding guide rod (20) on its telescopic rod. The bottom of the guide rod (18) is connected to a conductive plate (20), and the bottom front of the connecting frame (15) is also connected to a conductive plate (20). The bottom of the connecting frame (15) passes through the bottom of the support frame (5). The two measuring wires (17) are connected to the conductive plates (20) on the same side respectively. A spring (19) is connected between the upper conductive plate (20) and the telescopic rod of the electric push rod (14). The spring (19) is sleeved on the guide rod (18). The electric push rod (14) and the voltage measuring instrument (16) are both electrically connected to the controller (101).

6. The batch testing platform for lithium batteries as described in claim 5, characterized in that, The sorting components include a baffle plate (10), a flip plate (22), a rotating rod (23), and a stepper motor (24). The rotating rod (23) is rotatably connected to the opening on the right side of the support frame (5). The flip plate (22) is connected to both the upper and lower sides of the rotating rod (23). The stepper motor (24) is installed on the bottom right side of the support frame (5). The output shaft of the stepper motor (24) is connected to the rotating rod (23). The stepper motor (24) is electrically connected to the controller (101). The baffle plate (10) is connected to the opening on the front side of the support frame (5).

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