Automatic testing and sorting equipment for internal resistance of battery cell

Abstract

The utility model discloses automatic testing and sorting equipment for internal resistance of a battery cell. The automatic testing and sorting equipment comprises a workbench, the bearing assembly comprises a bottom table fixed to the surface of the workbench, a supporting table rotationally connected to the top of the bottom table, a bearing groove fixed to the top end of the supporting table and a laser sensor fixed to the bearing groove, and the section of the bearing groove is of a U-shaped structure; the driving assembly comprises a supporting plate fixed to the surface of the workbench and located on one side of the bottom table and a hydraulic rod fixed to the top end of the supporting plate. The designed bearing assembly and the driving assembly are matched with the upper sorting groove, rapid feeding and discharging of the battery cells can be completed, during feeding, the battery cells only need to be placed on the bearing groove, then the driving assembly is used for pushing the battery cells to the designated position, after testing is completed, the supporting table drives the bearing groove to rotate and face the corresponding sorting groove, and then the battery cells are separated from the sorting groove. And then the driving assembly is used for pushing the battery cells to the corresponding sorting grooves, discharging is completed, through the design, the battery cells can be rapidly fed and discharged, and convenience is provided for personnel.

Description

Technical Field

[0001] This utility model belongs to the technical field of battery cell testing and sorting equipment, specifically relating to an automatic battery cell internal resistance testing and sorting device. Background Technology

[0002] The battery cell is the core component inside a battery, a key structure for the conversion of chemical energy into electrical energy, and a crucial component for storing and releasing electrical energy. It consists of a positive electrode, negative electrode, electrolyte, separator, and outer casing. Battery cells typically come in three shapes: cylindrical, prismatic, and pouch cells. Internal resistance is an important indicator reflecting its internal structure and performance; process fluctuations during manufacturing directly affect its magnitude. Measuring internal resistance allows for the timely detection of problems in the manufacturing process, such as uneven electrode coating, improper electrolyte injection, and poor separator quality. Once an abnormal internal resistance is detected, production personnel can quickly adjust process parameters to ensure the stability and reliability of product quality. To ensure the normal and safe use of battery cells, internal resistance testing and sorting are required before use. Through testing and sorting, the consistency and quality of batteries are improved, ensuring the performance and safety of battery packs during use. Battery cell testing and sorting are widely used in the production of various batteries such as lithium batteries and lead-acid batteries. The main body of existing battery cell internal resistance testing and sorting equipment is often a simple internal resistance testing instrument. The instrument tests the internal resistance of the battery cells, while the loading, unloading, and sorting operations are often completed manually.

[0003] Existing battery cell testing and sorting equipment has certain shortcomings in its use. The loading and unloading of battery cells is not convenient enough, and it is often necessary to manually place the battery cells in a designated position before subsequent testing and sorting can be carried out. However, manual placement is prone to inaccurate positioning. This design results in low efficiency in testing and sorting, causing inconvenience to users. Therefore, it is necessary to design a new testing and sorting equipment to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide an automatic testing and sorting device for battery cell internal resistance, so as to solve the problem of inconvenient loading and unloading of battery cells mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic cell internal resistance testing and sorting device, comprising...

[0006] Workbench;

[0007] The support assembly includes a base fixed to the surface of the worktable, a support platform rotatably connected to the top of the base, a support groove fixed to the top of the support platform, and a laser sensor fixed to the support groove, wherein the support groove has a U-shaped cross-section.

[0008] The drive assembly includes a support plate fixed to the surface of the worktable and located on one side of the base, a hydraulic rod fixed to the top of the support plate, and a push plate fixedly connected to the output end of the hydraulic rod, wherein the push plate is aligned with the support groove.

[0009] The sorting trough is located on the top surface of the workbench and is arranged in a ring at one end of the support trough. The sorting trough is inclined downward.

[0010] Preferably, a top plate is fixed to the rear surface of the workbench, and the top plate has an L-shaped structure.

[0011] Preferably, the top plate is provided with a clamping test assembly, which includes a hydraulic pump fixed to the top plate, a long cylinder fixedly connected to the bottom of the hydraulic pump, and clamping plates symmetrically and movably arranged at the bottom of the long cylinder.

[0012] Preferably, electrode contacts are fixed on the surface of the clamping plate, and a motor is provided at one end of the long cylinder.

[0013] Preferably, the surface of the workbench is provided with an electrical control panel, and the electrical control panel is connected to the hydraulic rod and the laser sensor via wires.

[0014] Preferably, the surface of the workbench is fixed with a storage groove, and the storage groove includes a groove body.

[0015] Preferably, the storage slot further includes a side groove, which is formed on one end surface of the storage slot.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] By combining the designed support and drive components with the sorting slots, the battery cells can be loaded and unloaded quickly. During loading, simply place the battery cell on the support slot, and then use the drive component to push the battery cell to the designated position. After the test is completed, the support platform drives the support slot to rotate and face the corresponding sorting slot. Then, the drive component pushes the battery cell to the corresponding sorting slot to complete the unloading. Through the above design, the battery cells can be loaded and unloaded quickly, which is convenient for personnel and ensures that the battery cells are accurately positioned in the designated position, which is conducive to the secure clamping and testing of the battery cells. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 Enlarged view of area A in the middle;

[0020] Figure 3 This utility model Figure 1 Enlarged diagram of area B in the middle;

[0021] Figure 4 This is a three-dimensional schematic diagram of the clamping and testing component of this utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the present invention;

[0023] In the diagram: 100, workbench; 200, support assembly; 201, base platform; 202, support platform; 203, support groove; 204, laser sensor; 300, drive assembly; 301, hydraulic rod; 302, push plate; 303, support plate; 400, top plate; 500, clamping test assembly; 501, long cylinder; 502, hydraulic pump; 503, clamping plate; 504, motor; 600, sorting groove; 700, electrical control console; 800, storage groove; 801, groove body; 802, side groove. Detailed Implementation

[0024] 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.

[0025] Example

[0026] Please see Figures 1 to 5 This embodiment provides a technical solution: an automatic cell internal resistance testing and sorting device, comprising...

[0027] Workbench 100 serves as the base for the entire testing and sorting equipment. On the workbench, the entire process of testing and sorting the battery cells is completed.

[0028] The support assembly 200 includes a base 201 fixed to the surface of the workbench 100, a support platform 202 rotatably connected to the top of the base 201, a support groove 203 fixed to the top of the support platform 202, and a laser sensor 204 fixed to the support groove 203. The support groove 203 has a U-shaped cross-section, which allows the cylindrical battery cell to be placed stably and is less likely to fall. The inner wall of the support groove 203 is provided with a rubber pad to prevent the surface of the battery cell from scratching when it moves inside the support groove 203. The cross-section of the support groove 203 can also be designed and adjusted according to the shape of the battery cell to be tested so that the support groove 203 can adapt to the shape of the battery cell. The laser sensor 204 emits a laser from its inner end, which enters the support groove 203. When the battery cell moves to the laser output, it will be sensed.

[0029] The drive assembly 300 includes a support plate 303 fixed to the surface of the worktable 100 and located on one side of the base 201, a hydraulic rod 301 fixed to the top of the support plate 303, and a push plate 302 fixedly connected to the output end of the hydraulic rod 301. The push plate 302 is aligned with the support groove 203. After the battery cell is placed in the support groove 203, the hydraulic rod 301 is activated, and the push plate 302 can push the battery cell. When the battery cell moves to the position that is sensed by the laser sensor 204, the hydraulic rod 301 stops pushing and retracts. At this time, the battery cell is accurately in the designated position.

[0030] The sorting troughs 600 are located on the top surface of the workbench 100 and are arranged in a ring at one end of the support trough 203. The number and shape of the sorting troughs 600 can be designed according to requirements. The sorting troughs 600 are inclined downwards, and the support platform 202 can drive the support trough 203 to rotate and face the corresponding sorting trough 600. The hydraulic rod 301 pushes the push plate 302 to push the battery cell into the corresponding sorting trough 600 and slides out. A storage container can be placed at the tail end of the sorting trough 600. The above structure can complete the automatic sorting of battery cells, which is convenient and fast.

[0031] In this embodiment, preferably, a top plate 400 is fixed to the rear end surface of the workbench 100. The top plate 400 has an L-shaped structure and is used to install and hold the test assembly 500.

[0032] In this embodiment, preferably, a clamping test assembly 500 is provided on the top plate 400. The clamping test assembly 500 can test the internal resistance of the battery cell. The clamping test assembly 500 includes a hydraulic pump 502 fixed on the top plate 400, a long cylinder 501 fixedly connected to the bottom of the hydraulic pump 502, and clamping plates 503 symmetrically and movably arranged at the bottom of the long cylinder 501. By starting the hydraulic pump 502, the long cylinder 501 together with the clamping plates 503 at the bottom can be moved downward.

[0033] In this embodiment, preferably, electrode contacts are fixed on the surface of the clamping plate 503, a motor 504 is provided at one end of the long cylinder 501, the top of the clamping plate 503 extends into the long cylinder 501, a lead screw is rotatably provided inside the long cylinder 501, the lead screw has two kinds of threads with opposite directions symmetrically opened, and is threadedly connected to the two clamping plates 503 respectively. The motor 504 drives the lead screw to rotate, which can drive the two clamping plates 503 to close or separate. The motor 504 drives the clamping plates 503 on both sides to move, which can firmly clamp the battery cell, and the electrode contacts can contact the electrodes on the battery cell, thereby testing the internal resistance of the battery cell.

[0034] In this embodiment, preferably, an electrical control console 700 is provided on the surface of the workbench 100. The electrical control console 700, hydraulic rod 301, and laser sensor 204 are all connected by wires. The electrical control console 700 uses a programmable logic controller (PLC) as the main control unit, responsible for the overall control and coordination of the equipment. The PLC can be programmed to achieve overall control of the support component 200, drive component 300, and clamping and testing component 500, thereby smoothly completing the automatic feeding, testing, sorting, and unloading steps of the battery cells.

[0035] In this embodiment, preferably, the surface of the workbench 100 is fixed with a storage groove 800, which includes a groove body 801. The battery cells can be placed inside the groove body 801 to complete the centralized storage of the battery cells, making it convenient to retrieve the battery cells later.

[0036] In this embodiment, preferably, the storage slot 800 further includes a side slot 802, which is formed on one end surface of the storage slot 800, allowing the battery cell to be taken out from the side slot 802 position, making it convenient to retrieve the battery cell.

[0037] Working principle: Battery cells are first placed in the storage slot 800. During cell testing and sorting, a cell is taken from the storage slot 800 and placed on the support slot 203. Then, the hydraulic rod 301 is activated, pushing the placed cell via the push plate 302, allowing it to move on the support slot 203. The rubber pad inside the support slot 203 alleviates any scratches during movement. When the laser sensor 204 detects the cell, the hydraulic rod 301 stops, and the cell accurately stops at the designated position. The system is then set up, and the hydraulic pump 502 is started to push the long cylinder 501 down. The motor 504 drives the clamping plate 503 to move, firmly clamping the battery cell. The electrode contacts on the clamping plate 503 contact the electrodes of the battery cell to test the internal resistance of the battery cell. After the test, the support platform 202 drives the support groove 203 to rotate, so that the support groove 203 faces the corresponding sorting groove 600. Then the hydraulic rod 301 pushes the battery cell into the corresponding sorting groove 600, completing the sorting of the battery cell.

[0038] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic test and sorting device for cell internal resistance, characterized in that: The utility model relates to a kind of laser sensor test device, including Workbench (100); Supporting assembly (200), including fixed in the bottom (201) of workbench (100) surface, rotatingly connected in the support table (202) top of bottom (201), fixed in the supporting groove (203) top end of support table (202), fixed in the laser sensor (204) of supporting groove (203) on, the supporting groove (203) section is U-shaped structure; Driving assembly (300), including fixed in the support plate (303) of workbench (100) surface and located bottom (201) side, fixed in the hydraulic rod (301) top end of support plate (303), fixedly connected in the push plate (302) output end of hydraulic rod (301), the push plate (302) is opposite with supporting groove (203) alignment; Sorting groove (600), the sorting groove (600) is set in the top surface of workbench (100), and it is annularly distributed in the end of supporting groove (203), and the sorting groove (600) is inclined downward.

2. The automatic test and sorting device for internal resistance of battery cell according to claim 1, characterized in that: The rear end surface of the workbench (100) is fixed with the top plate (400), and the top plate (400) is L-shaped structure.

3. The automatic test and sorting device for internal resistance of battery cell according to claim 2, characterized in that: The clamping test assembly (500) is arranged on the top plate (400), and the clamping test assembly (500) includes a hydraulic pump (502) fixed on the top plate (400), a long barrel (501) fixedly connected at the bottom of the hydraulic pump (502), and a clamping plate (503) symmetrically movably arranged at the bottom of the long barrel (501).

4. The apparatus of claim 3, wherein: The surface of the clamping plate (503) is fixed with an electrode contact, and one end of the long barrel (501) is provided with a motor (504).

5. The apparatus of claim 4, wherein: The surface of the workbench (100) is provided with an electric control console (700), and the electric control console (700), the hydraulic rod (301) and the laser sensor (204) are connected by wires.

6. The automatic test and sorting equipment for internal resistance of battery cell according to claim 5, characterized in that: The surface of the workbench (100) is fixed with a storage groove (800), and the storage groove (800) includes a groove body (801).

7. The apparatus of claim 6, wherein: The storage groove (800) further includes a side groove (802) opened on one end surface of the storage groove (800).

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