A battery cell assembling device

Abstract

The application relates to the technical field of battery production and discloses a battery cell matching device, which comprises a data storage module and a test module, the test module is connected with the data storage module, the data storage module comprises an industrial computer and a database server which are connected in an interactive mode, the industrial computer is used for controlling the test module and receiving test data obtained by the test module, the database server is used for storing and processing the test data obtained by the test module, the test module comprises a battery cell code scanning mechanism and a test mechanism which are connected, the battery cell code scanning mechanism is used for obtaining identity information of a battery cell, the test mechanism is used for testing parameters of the battery cell, and the information obtained by the battery cell code scanning mechanism corresponds to the parameters obtained by the test mechanism. The application tests battery cell parameters through the test module, stores the parameters through the data storage module, and prompts matching gears according to various parameters of the battery cell, so that the overall process is simple, the practicability is high, manual multi-process operation is not needed, the risk of operation failure is avoided, and the consistency of battery cell groups is improved.

Description

Technical Field

[0001] This application belongs to the field of battery manufacturing technology, specifically relating to a cell assembly device. Background Technology

[0002] In the field of lithium battery production, precise cell matching is a key step in ensuring the performance and lifespan of battery modules.

[0003] Currently, lithium battery grouping generally employs multiple testing processes such as capacity testing, OCV1, and OCV2, completing the grouping by recording and comparing data. However, this method has significant technical shortcomings:

[0004] Firstly, the multi-process transfer process relies on manual operation, which is prone to problems such as data recording errors and cell confusion. It also makes it impossible to achieve accurate matching of cell discharge curves. Furthermore, it requires high skill levels from operators, leading to increased labor costs and operational error risks.

[0005] Secondly, if battery cells with inconsistent performance are combined into a module, the performance differences between the cells will directly affect the overall performance of the battery, such as reducing the driving range, and thus restricting the application effect of lithium battery modules in new energy vehicles, energy storage systems and other scenarios. Utility Model Content

[0006] To address the shortcomings of the prior art, this application provides a cell grouping device. This device tests various parameters of the cells, such as open-circuit voltage, internal resistance, and voltage, using a testing module. The data is then stored in a data storage module, which provides grouping prompts for each cell's parameters, enabling cell sorting. The overall process is simple, highly practical, and eliminates the need for multiple manual steps, avoiding the risk of operational errors, improving the reliability of cell sorting, and effectively enhancing the consistency of battery pack cells.

[0007] The technical effects to be achieved in this application are realized through the following aspects:

[0008] This application provides a battery cell assembly device, including a data storage module and a testing module, wherein the testing module is connected to the data storage module;

[0009] The data storage module includes an industrial control computer and a database server that are interconnected. The industrial control computer is used to control the test module and receive the test data obtained by the test module; the database server is used to store and process the test data obtained by the test module.

[0010] The testing module includes a cell scanning mechanism and a testing mechanism connected to each other. The cell scanning mechanism is used to obtain the cell's identity information; the testing mechanism is used to test the cell's parameters, and the information obtained by the cell scanning mechanism corresponds to the parameters obtained by the testing mechanism.

[0011] In some implementations, the testing mechanism includes independently configured voltage internal resistance testing components and OCV testing components, and both the voltage internal resistance testing components and the OCV testing components are connected to the industrial control computer.

[0012] In some implementations, the OCV testing component includes:

[0013] Support components;

[0014] A test component is connected to one side of the support component, and a cell placement area is correspondingly provided at the lower end of the test component; and

[0015] An IO module is located on the other side of the support component and is connected to the test component.

[0016] In some implementations, the test component includes a driver and a test piece, with the output of the driver connected to the test piece and the fixed end of the driver connected to the support component.

[0017] In some implementations, the test piece includes a plate, a movable block, and a test probe. The plate has movable grooves on both sides, the movable block is adjustablely and fixedly connected to the movable grooves, and the test probe passes through the movable block.

[0018] In some implementations, guide grooves are provided at both ends of the plate, and the guide grooves are embedded in the support component.

[0019] In some implementations, the test component further includes a positioning block located in the cell placement area for positioning the cell.

[0020] In some implementations, the positioning block is an L-shaped positioning block.

[0021] In some implementations, the testing mechanism includes an integrated OCV testing component, which is used for the simultaneous detection of multiple parameters, including cell open-circuit voltage and cell internal resistance.

[0022] In some implementations, the cell scanning mechanism is equipped with a CCD camera, which is positioned opposite to the cell placement area.

[0023] In summary, this application has at least the following advantages:

[0024] 1. The battery cell matching device provided in this application measures the parameters of the battery cells using a testing module, stores the corresponding parameters of the battery cells using a data storage module, and compares the stored parameters such as battery cell capacity, discharge curve, open circuit voltage, internal resistance, battery charging state, and self-discharge with the data storage module. It then prompts the battery cells to be matched and sorts the cells. The overall process is simple, requires low personnel skills, reduces the occurrence of human error, and reduces labor costs accordingly. It ensures accurate battery cell matching and is highly practical.

[0025] 2. The cell matching device provided in this application selects and matches the parameters of the cells by using a data storage module, thereby combining cells with the same performance into modules, thereby improving the consistency of the battery pack cells, effectively improving the depth of discharge of the module, achieving a longer battery pack range, and ensuring the good application effect of lithium battery modules in new energy vehicles, energy storage systems and other scenarios. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structural framework of the cell assembly device in Embodiment 1 of this application.

[0027] Figure 2 This is a schematic diagram of the structural framework of the cell assembly device in Embodiment 2 of this application.

[0028] Figure 3 This is a schematic diagram of the OCV testing component in Embodiment 2 of this application. Figure 1 .

[0029] Figure 4 This is a schematic diagram of the OCV testing component in Embodiment 2 of this application. Figure 2 .

[0030] Marked in the image:

[0031] 1. Data storage module; 11. Industrial computer; 12. Database server; 2. Testing module; 21. Cell scanning mechanism; 22. Testing mechanism; 221. Voltage and internal resistance testing component; 222. OCV testing component; 223. Support component; 2231. Fixing plate; 2232. Support frame; 224. Testing component; 2241. Driver; 2242. Test piece; 2243. Board body; 2244. Movable block; 2245. Test probe; 2246. Movable slot; 2247. Guide slot; 225. Cell placement area; 226. IO module; 227. Positioning block; 3. Cell. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0034] Example 1:

[0035] Please see the appendix Figure 1 The battery cell assembly device of this application includes a data storage module 1 and a test module 2, wherein the test module 2 is connected to the data storage module 1.

[0036] The data storage module 1 includes an industrial control computer 11 and a database server 12 that are interconnected. The industrial control computer 11 is used to control the test module 2 and receive the test data obtained by the test module 2; the database server 12 is used to store and process the test data obtained by the test module 2.

[0037] The test module 2 includes a cell scanning mechanism 21 and a test mechanism 22 connected to each other. The cell scanning mechanism 21 is used to obtain the cell's identity information; the test mechanism 22 is used to test the parameters of the cell 3. The information obtained by the cell scanning mechanism 21 and the parameters obtained by the test mechanism 22 correspond to each other.

[0038] In this embodiment, the cell grouping device, when cell 3 is placed in the testing area, the industrial control computer 11 controls the cell scanning mechanism 21 to identify the QR code of cell 3 and record its identification information such as model, batch, and serial number. After the identification information of cell 3 is obtained, the industrial control computer 11 then controls the testing mechanism 22 to measure parameters such as open-circuit voltage and internal resistance of cell 3. After the parameters of cell 3 are measured, and the identification information and corresponding parameters of cell 3 are stored in the database server 12, the database server 12 can compare and group the stored cell 3 parameters, thereby combining cells 3 with consistent performance into modules, thus improving the consistency of battery pack cells and increasing the depth of discharge of the modules, achieving a longer battery pack range.

[0039] This structure simplifies the overall process, eliminating the need for multiple steps and reducing manual intervention, thus minimizing human error. It also lowers the skill requirements for personnel, consequently reducing labor costs and effectively ensuring precise cell assembly, making it highly practical.

[0040] Example 2:

[0041] The difference between this embodiment and Embodiment 1 is that, please refer to... Figures 2-4 In this embodiment, the testing mechanism 22 includes independently configured voltage internal resistance testing component 221 and OCV testing component 222, both of which are connected to the industrial control computer 11. The OCV testing component 222 measures the open-circuit voltage of the battery cell. This setup allows for the use of multiple testing components to test different parameters of the battery cell, and the battery cell parameters are then stored and processed by the database server 12. This ensures the accuracy of parameter measurement and recording, avoids parameter confusion in the battery cell, and guarantees the quality of battery cell assembly.

[0042] Specifically, the OCV test component 222 includes a support component 223, a test component 224, and an IO module 226.

[0043] The support component 223 supports the test component 224 and the IO module 226, ensuring stability during test operation and thus guaranteeing accurate testing. Additionally, the support component 223 includes a fixing plate 2231 and a support frame 2232 connected to the test component 224. The fixing plate 2231 is adjustablely fixed to the support frame 2232, a feature designed to accommodate battery cells 3 of varying heights, improving compatibility. The fixing plate 2231 can be locked at different positions on the support frame 2232 using screws, achieving different heights of the fixing plate 2231 from the ground, thus accommodating battery cells 3 of different heights. It should be noted that the fixing plate 2231 has limiting holes on both sides, and the support frame 2232 has multiple fixing holes corresponding to these limiting holes. These fixing holes can be threaded, facilitating screw insertion and connection between the fixing and limiting holes.

[0044] The test component 224 is connected to one side of the support component 223, and a cell placement area 225 is correspondingly provided at the lower end of the test component 224. The test component 224 includes a driver 2241 and a test piece 2242. The output end of the driver 2241 is connected to the test piece 2242, and the fixed end of the driver 2241 is connected to the support component 223. The driver 2241 is preferably a cylinder.

[0045] The IO module 226 is located on the other side of the support component 223 and is connected to the test component 224.

[0046] With the OCV test component 222 configured as described above, the battery cell to be tested is placed in the cell placement area 225. When the industrial control computer 11 sends a test command, the relay of the IO module 226 closes, and the driver 2241 pushes the test piece 2242 down until it contacts the battery cell 3, and then tests it. The overall test structure is simple, facilitating rapid testing of battery cell parameters and subsequent maintenance.

[0047] In some embodiments, the test piece 2242 includes a plate 2243, a movable block 2244, and a test probe 2245. Movable slots 2246 are provided on both sides of the plate 2243. The movable block 2244 is adjustablely and fixedly connected to the movable slots 2246, and the test probe 2245 passes through the movable block 2244. It is understood that the test probe 2245 is used to contact the cell terminal and collect voltage. The movable block 2244 allows adjustment of the test probe 2245 at different positions on the plate 2243, thus adapting to the testing of different models of cell 3, demonstrating strong adaptability. Specifically, screws can be used to pass through the movable slots 2246 to lock the movable block 2244 onto the plate 2243. When it is necessary to adjust the position of the test probe 2245, the screws can be loosened, the movable block 2244 moved to the corresponding position, and then the screws can be tightened again, thereby improving the flexibility of the test. The plate 2243 is provided with a clearance hole corresponding to the test probe 2245, and the movable groove 2246 is provided on both sides of the clearance hole, that is, each plate 2243 is provided with 4 movable grooves 2246.

[0048] In some embodiments, guide grooves 2247 are provided at both ends of the plate 2243, and the guide grooves 2247 are fitted into the support member 223. With this arrangement, when the driver 2241 drives the plate 2243 to rise and fall, the plate 2243 can be restricted to rise and fall by the support member 223 under the action of the guide grooves 2247, which effectively guides the plate 2243, ensuring that the plate 2243 rises and falls smoothly and accurately, thereby ensuring the accuracy of the measurement.

[0049] In some embodiments, the test component 224 further includes a positioning block 227, which is disposed in the cell placement area 225 for positioning the cell 3. By placing the cell 3 through the positioning block 227, the precise alignment of the cell and the test probe 2245 can be ensured, thus ensuring measurement accuracy.

[0050] Preferably, the positioning block 227 is an L-shaped positioning block 227. It can position the corners of the battery cell, improving the stability of the battery cell placement.

[0051] In some embodiments, the cell scanning mechanism 21 is equipped with a CCD camera, which is positioned opposite to the cell placement area 225. This allows for accurate identification and recording of the cell's identity information, preventing cell confusion and providing precise data for subsequent cell matching, thus improving the timeliness of cell matching.

[0052] Example 3:

[0053] The difference between this embodiment and embodiment 2 is that the test mechanism 22 in this embodiment includes an integrated OCV test component 222, which is used for the simultaneous detection of multiple parameters such as cell open circuit voltage and cell internal resistance.

[0054] The cell assembly device in this embodiment uses an integrated OCV testing component 222, which can simultaneously detect multiple parameters of the cell 3, including open-circuit voltage and internal resistance. This effectively simplifies the structure and makes the overall structure more compact. It also reduces the number of devices to be maintained and improves the convenience of maintenance.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0057] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0058] In this application, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" a first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] Although the description of this application has been made in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A battery cell assembly device, characterized in that, It includes a data storage module and a testing module, wherein the testing module is connected to the data storage module; The data storage module includes an industrial control computer and a database server that are interconnected. The industrial control computer is used to control the test module and receive the test data obtained by the test module; the database server is used to store and process the test data obtained by the test module. The testing module includes a cell scanning mechanism and a testing mechanism connected to each other. The cell scanning mechanism is used to obtain the cell's identification information; the testing mechanism is used to test the cell's parameters, and the information obtained by the cell scanning mechanism corresponds to the parameters obtained by the testing mechanism. The testing mechanism includes an OCV testing component, which includes a support component and a testing component connected to one side of the support component. The lower end of the testing component has a corresponding cell placement area. The testing component includes a test piece, which includes a plate, a movable block, and a test probe. The plate has movable grooves on both sides and clearance holes corresponding to the test probes. The movable grooves are located on both sides of the clearance holes. The movable block is adjustablely and fixedly connected to the movable grooves. The test probe passes through the movable block. Guide grooves are provided at both ends of the plate, and these guide grooves are interlocked with the support component, allowing the plate to be raised and lowered by the support component.

2. The cell assembly device according to claim 1, characterized in that, The testing mechanism includes an independently configured voltage internal resistance testing component, and both the voltage internal resistance testing component and the OCV testing component are connected to the industrial control computer.

3. The cell assembly device according to claim 2, characterized in that, The OCV testing components include: An IO module is located on the other side of the support component and is connected to the test component.

4. The cell assembly device according to claim 3, characterized in that, The test component includes a driver, the output end of which is connected to the test piece, and the fixed end of which is connected to the support component.

5. The cell assembly device according to claim 4, characterized in that, The testing component also includes a positioning block, which is located in the cell placement area and is used to position the cell.

6. The cell assembly device according to claim 5, characterized in that, The positioning block is an L-shaped positioning block.

7. The cell assembly device according to claim 1, characterized in that, The testing mechanism includes an integrated OCV testing component, which is used for the simultaneous detection of multiple parameters such as cell open-circuit voltage and cell internal resistance.

8. The cell assembly device according to claim 1, characterized in that, The cell scanning mechanism is equipped with a CCD camera, which is positioned opposite to the cell placement area.

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