Customer complaint lithium battery analysis testing device

Abstract

The utility model relates to a kind of customer complaint lithium battery analysis testing device.Customer complaint lithium battery analysis testing device includes workbench, the side of workbench is sequentially provided with: first conveying mechanism, for conveying to be disassembled battery module and to be welded battery;Battery dismounting mechanism, for the battery in to be disassembled battery module is disassembled;Tab welding mechanism, located the downstream of battery dismounting mechanism, for welding on the tab of to be welded battery at tab;Second conveying mechanism, located the downstream of tab welding mechanism, for conveying battery after tab welding;And testing mechanism, located the side of second conveying mechanism, for testing battery after tab welding.The customer complaint lithium battery analysis testing device described above can avoid the problem that the tab of battery is extremely short and cannot be analyzed and tested subsequently, and is conducive to wide application.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and in particular to a lithium battery analysis and testing device for customer complaints. Background Technology

[0002] Since its inception, lithium-ion battery technology has continued to innovate and develop. This is because lithium-ion batteries currently face core challenges such as low energy density, short cycle life, poor safety performance, and high cost. These issues have constrained the development speed of the lithium-ion battery industry, meaning many problems remain to be solved. However, with the global trend towards electrification in automobiles, energy storage, and home appliances, the development prospects of lithium-ion batteries are still viewed favorably worldwide.

[0003] When analyzing customer complaints and returns for the modules, the lithium batteries are removed from the modules. Since the lithium batteries are soldered inside the modules, the cell tabs need to be manually cut off, resulting in extremely short cell tabs that cannot be used for subsequent analysis and testing. Utility Model Content

[0004] Therefore, it is necessary to provide a customer complaint lithium battery analysis and testing device to address the problem of how to avoid the inability to perform subsequent analysis and testing due to extremely short cell tabs.

[0005] A customer complaint lithium battery analysis and testing device includes a workbench, on one side of which are arranged the following:

[0006] The first conveying mechanism is used to convey the battery cell module to be disassembled and the battery cell to be welded.

[0007] A cell disassembly mechanism is used to remove the cells from the cell module to be disassembled, so as to obtain the cells to be welded.

[0008] The electrode welding mechanism is located downstream of the cell disassembly mechanism and is used to weld the upper electrode tab at the electrode tab of the cell to be welded.

[0009] The second conveying mechanism, located downstream of the electrode welding mechanism, is used to convey the battery cells after the electrodes have been welded; and

[0010] The testing mechanism, located on one side of the second transmission mechanism, is used to test the battery cells after the welding tabs are attached.

[0011] When using the customer complaint lithium battery analysis and testing device of this utility model, the battery cell module to be disassembled is conveyed to the battery cell disassembly mechanism via the first conveying mechanism, where the battery cell disassembly mechanism removes the battery cell from the battery cell module. The removed battery cell is then conveyed to the tab welding mechanism via the first conveying mechanism, where the tab welding mechanism welds tabs onto the tabs of the battery cell to be welded. After the tabs are welded, the battery cell is then placed at the testing area via the first conveying mechanism and then via the second conveying mechanism, where it undergoes customer complaint and return reason detection by the testing mechanism. Using the above-mentioned customer complaint lithium battery analysis and testing device can avoid the problem of the battery cell tabs being too short after disassembly, which would prevent subsequent analysis and testing, and is beneficial for widespread application.

[0012] In one embodiment, the cell disassembly mechanism includes a cutter for removing cells from the cell module to be disassembled.

[0013] In one embodiment, the cell disassembly mechanism further includes:

[0014] The cutter support frame is fixedly connected to the worktable; and

[0015] A cutter drive device is fixed to one side of the cutter support frame, and the cutter is fixed to the side of the cutter drive device near the first conveying mechanism.

[0016] In one embodiment, there are at least two cutter drive devices, and each cutter drive device is provided with a cutter on the side near the first conveying mechanism.

[0017] In one embodiment, the electrode welding mechanism includes:

[0018] A welding support frame for the electrode lugs is fixedly connected to the workbench.

[0019] A sliding seat is slidably connected to the electrode welding support frame in a direction approaching or away from the first conveying mechanism; and

[0020] A welding unit is disposed on the side of the sliding seat away from the electrode welding support frame. The welding unit is used to weld the electrode tabs onto the electrode tabs of the battery cell to be welded.

[0021] In one embodiment, the welding unit includes:

[0022] The base is fixed to the side of the sliding seat away from the electrode welding support frame;

[0023] A welding head is disposed on the side of the base near the first conveying mechanism; and

[0024] A welding fixing plate is disposed on the base and located on one side of the welding head. The welding fixing plate is used to press and fix the battery cell to be welded.

[0025] In one embodiment, the end of the welding fixing plate away from the first conveying mechanism is slidably connected to the side wall of the base; and / or

[0026] The number of welding units is at least two.

[0027] In one embodiment, the customer complaint lithium battery analysis and testing device further includes a gripping mechanism and a gripping mechanism driving device. The gripping mechanism is connected to the second conveying mechanism through the gripping mechanism driving device. The gripping mechanism can move along the conveying direction of the second conveying mechanism and can move in a direction closer to or farther from the second conveying mechanism.

[0028] In one embodiment, the testing mechanism is located between the gripping mechanism and the worktable.

[0029] In one embodiment, the conveying directions of the first conveying mechanism and the second conveying mechanism are perpendicular to each other. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a customer complaint lithium battery analysis and testing device according to one embodiment of the present invention.

[0031] Figure 2 This is an enlarged schematic diagram of the cell disassembly mechanism in the customer complaint lithium battery analysis and testing device according to one embodiment of the present invention.

[0032] Figure 3 This is an enlarged schematic diagram of the tab welding mechanism in a customer complaint lithium battery analysis and testing device according to one embodiment of the present invention.

[0033] Figure 4 This is a schematic diagram of the cell module to be disassembled, the cell to be welded, and the cell after welding tabs when performing analysis and testing using the customer complaint lithium battery analysis and testing device according to an embodiment of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Testing equipment;

[0036] 110. Workbench;

[0037] 120. First transmission mechanism;

[0038] 130. Cell disassembly mechanism; 131. Cutting blade; 132. Cutting blade support frame; 133. Cutting blade drive device;

[0039] 140. Electrode welding mechanism; 141. Electrode welding support frame; 142. Sliding seat; 143. Welding unit; 144. Base; 145. Welding head; 146. Welding fixing plate.

[0040] 150 Second transmission mechanism;

[0041] 160 testing organizations;

[0042] 210. Battery cell module to be disassembled; 211. Electrode tab;

[0043] 220. Battery cell to be welded; 221. Electrode tab;

[0044] 230. Battery cell after welding tabs; 231. Tabs. Detailed Implementation

[0045] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0046] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] Please see Figures 1-3 The lithium battery analysis and testing device 100 according to one embodiment of the present invention includes a workbench 110. A first conveying mechanism 120, a cell disassembly mechanism 130, an electrode welding mechanism 140, a second conveying mechanism 150 and a testing mechanism 160 are arranged sequentially on one side of the workbench 110.

[0049] The first conveying mechanism 120 is used to convey the battery cell module 210 to be disassembled and the battery cell 220 to be soldered. Specifically, as shown... Figure 1 As shown, the first conveying mechanism 120 is fixed on the worktable 110. The first conveying mechanism 120 includes a conveyor belt, and the conveying direction of the conveyor belt is as follows: Figure 1 The diagram, from left to right, shows the sequential transfer of the battery cell module 210 to be disassembled and the battery cell 220 to be soldered. (See diagram for reference.) Figure 4 As shown, the battery cell in the battery cell module 210 to be disassembled includes a tab 211, and the tab 221 in the battery cell 220 to be soldered is cut short.

[0050] The cell disassembly mechanism 130 is used to remove the cells from the cell module 210 to be disassembled. The cell disassembly mechanism 130 is located at the initial position of the first conveying mechanism 120. The cell module 210 is conveyed to the cell disassembly mechanism 130 through the first conveying mechanism 120. The cell disassembly mechanism 130 removes the cells from the cell module 210 to become cells to be soldered. The cell disassembly mechanism 130 may also include a cell stacking device (not shown in the figure). The cell stacking device can adopt a conventional robotic arm structure to neatly stack the cells to be soldered for conveying to the downstream mechanism.

[0051] The electrode welding mechanism 140 is located downstream of the cell disassembly mechanism 130 and is used to weld electrodes onto the electrodes of the cell 220 to be welded. The disassembled cell is conveyed to the electrode welding mechanism 140 via the first conveying mechanism 120. The electrode welding mechanism 140 welds electrodes onto the electrodes of the cell 220 to be welded, resulting in a cell 230 with welded electrodes. The cell 230 with welded electrodes includes electrodes 231, such as... Figure 4 As shown. Optionally, a metal of the same material as the tab can be welded to the shortened tab.

[0052] The second conveying mechanism 150 is located downstream of the electrode welding mechanism 140 and is used to convey the battery cell 230 after electrode welding. The battery cell 230 after electrode welding is conveyed from the first conveying mechanism 120 to the second conveying mechanism 150, and then conveyed downstream through the second conveying mechanism 150. In this embodiment, the second conveying mechanism 150 is fixed by the two side gantry frames and the worktable 110, but the present invention is not limited to this. The position of the second conveying mechanism 150 and the way it is fixed to the worktable 110 can be adjusted as needed.

[0053] The testing mechanism 160 is located on one side of the second transmission mechanism 150 and is used to test the battery cell 230 after the tabs are welded. The testing mechanism 160 can autonomously select the data to be tested, including but not limited to DC internal resistance, battery voltage, internal resistance, capacity, voltage drop, etc.

[0054] When using the customer complaint lithium battery analysis and testing device of this utility model, the cell module 210 to be disassembled is conveyed to the cell disassembly mechanism 130 via the first conveying mechanism 120, and the cell disassembly mechanism 130 removes the cell from the cell module 210. The removed cell is then conveyed to the tab welding mechanism 140 via the first conveying mechanism 120, where tabs are welded onto the tabs of the cell 220 to be welded. After the tabs are welded, the cell 230 is placed at the testing area via the first conveying mechanism 120 and the second conveying mechanism 150, and then undergoes customer complaint / return reason detection via the testing mechanism 160. Using the above-mentioned customer complaint lithium battery analysis and testing device avoids the problem of extremely short cell tabs preventing subsequent analysis and testing, and is beneficial for widespread application.

[0055] Based on the aforementioned embodiments, the cell disassembly mechanism 130 includes a cutter 131 for removing the cells from the cell module 210 to be disassembled. When the cell module 210 to be disassembled is conveyed to the cell disassembly mechanism 130, the cutter 131 cuts the cell module 210 to remove the cells from the cell module 210.

[0056] Based on the aforementioned embodiment, the cell disassembly mechanism 130 further includes a cutter support frame 132 and a cutter drive device 133. The cutter support frame 132 is fixedly connected to the worktable 110 and is used to fix the cutter drive device 133 and the cutter 131. The cutter drive device 133 is fixed to one side of the cutter support frame 132, and the cutter 131 is fixed to the side of the cutter drive device 133 near the first conveying mechanism 120. Furthermore, the cutter 131 is connected to a connecting rod of the cutter drive device 133.

[0057] In this embodiment, the cutter driving device 133 drives the cutter 131 to move in a direction close to or away from the first conveying structure 120. Specifically, when the battery cell module 210 to be disassembled is conveyed to the battery cell disassembly mechanism 130, the cutter driving device 133 drives the cutter 131 to move in a direction close to the first conveying structure 120, and then the cutter 131 cuts the battery cell module 210 to be disassembled, so that the battery cell is removed from the battery cell module 210; then the cutter driving device 133 drives the cutter 131 to move in a direction away from the first conveying structure 120, so that the cutter 131 returns to its original position; when the next batch of battery cell modules 210 to be disassembled is conveyed to the battery cell disassembly mechanism 130, the above process is repeated.

[0058] Based on the aforementioned embodiments, the number of cutter drive devices 133 is at least two, and each cutter drive device 133 is provided with a cutter 131 on the side near the first conveying mechanism 120, such as... Figure 1 and Figure 2As shown. Specifically, in this embodiment, there are two cutter drive devices 133, so that two battery cell modules 210 to be disassembled can be disassembled simultaneously. Of course, in the lithium battery analysis and testing device of this utility model, the number of cutter drive devices can also be more than two.

[0059] Based on the aforementioned embodiments, the electrode welding mechanism 140 includes an electrode welding support frame 141, a sliding seat 142, and a welding unit 143. The electrode welding support frame 141 is fixedly connected to the worktable 110. The sliding seat 142 is slidably connected to the electrode welding support frame 141 in a direction approaching or away from the first conveying mechanism 120. The welding unit 143 is disposed on the side of the sliding seat 142 away from the electrode welding support frame 141, and is used to weld electrodes onto the electrodes of the battery cell 220 to be welded.

[0060] Based on the aforementioned embodiment, the welding unit 143 includes a base 144, a welding head 145, and a welding fixing plate 146. The base 144 is fixed to the sliding seat 142 on the side away from the electrode welding support frame 141. The welding head 145 is located on the side of the base 144 near the first conveying mechanism 120. The welding fixing plate 146 is located on the base 144 and on one side of the welding head 145, and is used to press and fix the battery cell 220 to be welded. The removed battery cell 220 is conveyed to the electrode welding mechanism 140, where it is pressed and fixed by the welding fixing plate 146. The welding head 145 welds a metal of the same material as the electrode to the shortened electrode. The welding head 145 can be connected to the bottom of the base 144 via a telescopic rod or a fixed rod. The welding can be performed using ultrasonic welding or soldering.

[0061] Based on the aforementioned embodiment, the end of the welding fixing plate 146 away from the first conveying mechanism 120 is slidably connected to the side wall of the base 144. Specifically, the sliding direction is along the conveying direction of the first conveying mechanism 120 or the opposite direction. This allows the position of the welding fixing plate 146 to be adjusted in the aforementioned direction to better press and fix the battery cell 220 to be welded.

[0062] Based on the aforementioned embodiments, the number of welding units 143 is at least two, such as... Figure 1 and Figure 3 As shown. Specifically, in this embodiment, there are two welding units 143. This allows for the simultaneous welding of two battery cells 220 to be welded. Of course, in the lithium battery analysis and testing device of this utility model, the number of welding units can also be more than two.

[0063] Based on the aforementioned embodiments, the lithium battery analysis and testing device 100 further includes a gripping mechanism 170 and a gripping mechanism drive device 180. The gripping mechanism 170 is connected to the second conveying mechanism 150 via the gripping mechanism drive device 180. The gripping mechanism 170 can move along the conveying direction of the second conveying mechanism 150 and can move towards or away from the second conveying mechanism 150. Specifically, the gripping mechanism drive device 180 is fixed to one side of the second conveying mechanism 150 and is used to drive the gripping mechanism 170 to move.

[0064] Based on the aforementioned implementation, the testing mechanism 160 is located between the gripping mechanism 170 and the workbench 110. Specifically, in this implementation, the testing mechanism 160 is located on the workbench 110 and below the gripping mechanism 170.

[0065] Based on the aforementioned implementation, the conveying directions of the first conveying mechanism 120 and the second conveying mechanism 150 are perpendicular to each other. This helps to reduce the overall size of the lithium battery analysis and testing device 100. It should be noted that the conveying directions of the first conveying mechanism 120 and the second conveying mechanism 150 are not limited to this; they can also be parallel to each other or in any other direction.

[0066] When using the customer complaint lithium battery analysis and testing device 100 of this utility model, the cell module 210 to be disassembled is conveyed to the cell disassembly mechanism 130 through the first conveying mechanism 120. The cell is removed from the module by the cutter 131, and the disassembled cell 220 to be welded is conveyed to the tab welding mechanism 140. The cell 220 to be welded is pressed and fixed by the welding fixing plate 146, and the metal of the same material as the tab is welded to the shortened tab by the welding head 145. The welding can be ultrasonic welding or tin welding. After the tab is welded, the cell 230 (i.e. the cell to be tested) is placed to the testing area through the second conveying mechanism 150 and the gripping mechanism 170. The testing area's testing mechanism 160 performs customer complaint and return reason detection. The testing mechanism 160 makes independent selection based on the data to be tested, including but not limited to DC internal resistance, battery voltage, internal resistance, capacity, voltage drop, etc.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A customer complaint lithium battery analysis and testing device, characterized in that, Including a workbench, one side of the workbench is provided with the following: The first conveying mechanism is used to convey the battery cell module to be disassembled and the battery cell to be welded. A cell disassembly mechanism is used to remove the cells from the cell module to be disassembled, so as to obtain the cells to be welded. The electrode welding mechanism is located downstream of the cell disassembly mechanism and is used to weld the upper electrode tab at the electrode tab of the cell to be welded. The second conveying mechanism, located downstream of the electrode welding mechanism, is used to convey the battery cells after the electrodes have been welded. as well as The testing mechanism, located on one side of the second transmission mechanism, is used to test the battery cells after the welding tabs are attached.

2. The lithium battery analysis and testing device according to claim 1, characterized in that, The cell disassembly mechanism includes a cutter for removing the cells from the cell module to be disassembled.

3. The lithium battery analysis and testing device according to claim 2, characterized in that, The cell disassembly mechanism also includes: The cutter support frame is fixedly connected to the worktable; and A cutter drive device is fixed to one side of the cutter support frame, and the cutter is fixed to the side of the cutter drive device near the first conveying mechanism.

4. The lithium battery analysis and testing device according to claim 3, characterized in that, The number of the cutter driving devices is at least two, and each cutter driving device is provided with a cutter on the side near the first conveying mechanism.

5. The customer complaint lithium battery analysis and testing device according to claim 1, characterized in that, The electrode welding mechanism includes: A welding support frame for the electrode lugs is fixedly connected to the workbench. A sliding seat is slidably connected to the electrode welding support frame in a direction approaching or away from the first conveying mechanism; and A welding unit is disposed on the side of the sliding seat away from the electrode welding support frame. The welding unit is used to weld the electrode tabs onto the electrode tabs of the battery cell to be welded.

6. The customer complaint lithium battery analysis and testing device according to claim 5, characterized in that, The welding unit includes: The base is fixed to the side of the sliding seat away from the electrode welding support frame; A welding head is disposed on the side of the base near the first conveying mechanism; and A welding fixing plate is disposed on the base and located on one side of the welding head. The welding fixing plate is used to press and fix the battery cell to be welded.

7. The customer complaint lithium battery analysis and testing device according to claim 6, characterized in that, The end of the welding fixing plate away from the first conveying mechanism is slidably connected to the side wall of the base; and / or The number of welding units is at least two.

8. The lithium battery analysis and testing device according to claim 1, characterized in that, The customer complaint lithium battery analysis and testing device also includes a gripping mechanism and a gripping mechanism driving device. The gripping mechanism is connected to the second conveying mechanism through the gripping mechanism driving device. The gripping mechanism can move along the conveying direction of the second conveying mechanism and can move in a direction closer to or farther from the second conveying mechanism.

9. The customer complaint lithium battery analysis and testing device according to claim 8, characterized in that, The testing mechanism is located between the gripping mechanism and the workbench.

10. The customer complaint lithium battery analysis and testing device according to claim 1, characterized in that, The conveying directions of the first conveying mechanism and the second conveying mechanism are perpendicular to each other.

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