Blade battery cell stacking device

Abstract

The utility model discloses a blade battery cell stacking device which comprises a bottom plate assembly, a plurality of blade battery cells, a plurality of blade battery cells, a plurality of blade battery cells, a plurality of blade battery cells and a plurality of blade battery cells, the device comprises a battery cell module, an end stopping assembly for positioning the end of the battery cell module, a side surface stopping assembly for positioning the side surface of the battery cell module, an end pressurizing assembly for applying set pressure to the battery cell module, and a plurality of welding pressure head assemblies for welding the battery cell module. According to the utility model, stacking of blade battery cells with different sizes can be flexibly compatible according to production requirements, and the blade battery cells with different sizes can be stacked into battery cell modules with different lengths.

Description

A blade battery cell stacking device Technical Field

[0001] This utility model belongs to the field of battery manufacturing technology, specifically relating to a blade cell stacking device. Background Technology

[0002] Before mass production of lithium battery modules, trial production and pilot manufacturing are generally required to verify relevant parameters. Trial production emphasizes a quick and efficient approach, integrating related production processes as much as possible. Stacking and electrode welding are crucial steps in module manufacturing, performed sequentially within a single trial production fixture. Due to the nature of trial production, each module typically requires a dedicated fixture, leading to poor fixture compatibility and low cost-effectiveness. The fixtures used in the production of blade battery modules with terminals on the side of the cell also face similar challenges. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a blade battery cell stacking device that can flexibly accommodate the stacking of blade batteries of different sizes according to production needs, and can stack blade batteries of different sizes into battery cell modules of different lengths.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a blade battery cell stacking device, comprising: a base plate assembly for stacking blade batteries into a battery cell module, mounted on the base plate assembly, an end stop assembly for positioning the end of the battery cell module, a side blocking assembly for positioning the side of the battery cell module, an end pressurizing assembly for applying a set pressure to the battery cell module, and a plurality of welding pressure head assemblies for welding the battery cell module.

[0005] The above technical solution, through the base plate assembly and the end stop assembly, side blocking assembly, end pressurizing assembly and welding head assembly installed on the base plate assembly, can flexibly accommodate the stacking of blade cells of different sizes according to production needs, and can stack blade cells of different sizes into cell modules of different lengths.

[0006] Furthermore, the base plate assembly includes: a base plate and a plurality of cell brackets mounted on the base plate; the cell brackets are assembled from a plurality of mounting plates one and mounting plates two.

[0007] The above technical solution uses several mounting plates spliced ​​together to form a cell bracket to support the blade cells, ensuring the flatness of the cells and avoiding interference between the cells and other components during the cell stacking process, thus creating conditions for stacking cells of different specifications.

[0008] Furthermore, the end stop assembly includes: a mounting bracket mounted on the base plate assembly and a module contour plate II mounted on the mounting bracket.

[0009] The above technical solution, by setting the end stop component of the module conforming plate, ensures effective contact between the end stop component and the cell module, ensuring effective force transmission. At the same time, it facilitates hoisting, avoids mutual interference between working parts and cell modules, and improves production efficiency.

[0010] Furthermore, the side blocking assembly includes: a pad; and a pin disposed on the pad for connection with the base plate assembly.

[0011] The above technical solution ensures the flatness of the battery cell module by setting a pad and enables quick assembly and disassembly between the side blocking component and the base plate component by using pins, thereby improving production efficiency.

[0012] Furthermore, the end pressurization assembly includes: a pressurization base plate; a guide rail mounted on the pressurization base plate; a slider slidably connected to the guide rail; a pressurization frame mounted on the slider; a module conforming plate mounted on the pressurization frame for abutting against one side of the battery cell module; and a pressure regulating assembly mounted on the pressurization base plate for pushing the pressurization frame to slide relative to the pressurization base plate.

[0013] The above technical solution achieves the pressure principle design of the end pressure component through the sliding connection between the pressure frame and the pressure base plate, which facilitates the pressure application to the battery cell module. The module conformal plate ensures effective contact between the end pressure component and the battery cell module, ensuring effective force transmission. At the same time, it facilitates hoisting, avoids mutual interference between working parts and battery cell modules, and improves production efficiency.

[0014] Furthermore, the pressure regulating assembly includes a lead screw mounting plate mounted on the pressure base plate and a manual lead screw threadedly connected to the lead screw mounting plate.

[0015] The above technical solution forms a pressure regulating component through a lead screw mounting plate and a manual lead screw, which enables effective pressure regulation, facilitates the application of pressure to the battery cell module, facilitates the stacking of battery cells, and improves production efficiency.

[0016] Furthermore, the pressure base plate is slidably connected to the base plate assembly via a slide rail assembly, and a guide rail clamp is provided inside the slide rail assembly.

[0017] The above technical solution, by setting a guide rail clamp inside the slide rail assembly, can fix the relative position of the guide rail and the slider inside the slide rail assembly as needed, which can effectively apply pressure to the battery cell module and facilitate pressure adjustment of the battery cell module.

[0018] Furthermore, the welding pressure head assembly includes: a slider mounting plate, a guide short shaft and a quick clamp mounted on the slider mounting plate, a pressure head mounting plate connected to the guide short shaft, and a welding pressure head connected to the pressure head mounting plate; the slider mounting plate is mounted on the base plate assembly via a welding slide rail assembly.

[0019] The above technical solution, through the sliding connection design between the welding head assembly and the base plate assembly, facilitates the welding of electrode plates and posts at different positions on the cell module by the welding head assembly, improves the flexibility and usability of the device, expands the scope of application of the device, and can adapt to the welding of cell modules of different specifications.

[0020] Furthermore, end contouring components are respectively installed on the end stop assembly and the end pressurization assembly.

[0021] The above technical solution ensures effective contact between the end-mounted stop component and the battery cell module through the end-mounted conformal component, ensuring effective force transmission, facilitating hoisting, avoiding mutual interference between working parts and battery cell modules, and improving production efficiency; at the same time, it improves the usability of the device, can adapt to the stacking of battery cell modules of different specifications, and expands the applicability of the device.

[0022] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model uses a base plate assembly for stacking blade cells into cell modules, and an end stop assembly for positioning the ends of the cell modules, a side blocking assembly for positioning the sides of the cell modules, an end pressurizing assembly for applying a set pressure to the cell modules, and a welding head assembly for welding the cell modules; it can flexibly accommodate the stacking of blade cells of different sizes according to production needs, and can stack blade cells of different sizes into cell modules of different lengths. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the overall structure of a blade battery cell stacking device provided in an embodiment of the present invention;

[0024] Figure 2 is a structural schematic diagram of the base plate assembly in Figure 1;

[0025] Figure 3 is a schematic diagram of the end pressure assembly in Figure 1;

[0026] Figure 4 is a schematic diagram of the end stop assembly in Figure 1;

[0027] Figure 5 is a structural schematic diagram of the side blocking assembly in Figure 1;

[0028] Figure 6 is a schematic diagram of the end contouring component in Figure 1;

[0029] Figure 7 is a schematic diagram of the welding pressure head assembly in Figure 1;

[0030] Figure 8 is a diagram showing the stacking effect of wide blade cells;

[0031] Figure 9 is a diagram showing the stacking effect of narrow blade battery cells;

[0032] In the diagram: 1. Base plate assembly; 11. Base plate; 111. Pin hole one; 12. Welded slide rail assembly one; 121. Guide rail four; 122. Slider four; 13. Mounting plate one; 14. Mounting plate two; 15. Welded slide rail assembly two; 151. Guide rail five; 152. Slider five; 16. Welded slide rail assembly three; 161. Guide rail six; 162. Slider six; 17. Slide rail assembly one; 171. Guide rail two; 172. Slider two; 173. Guide rail clamp one; 18. Slide rail assembly two; 181. Guide rail three; 182. Slider three; 183. Guide rail clamp two; 2. End pressure assembly; 21. Pressure base plate; 211. Guide rail one; 212. Slider four; 121. Guide rail four; 122. Slider four; 13. Mounting plate one; 14. Mounting plate two; 15. Welded slide rail assembly two; 151. Guide rail five; 152. Slider five; 16. Welded slide rail assembly three; 161. Guide rail six; 162. Slider six; 17. Slide rail assembly one; 171. Guide rail two; 172. Slider two; 183. Guide rail clamp one; 2. End pressure assembly; 21. Pressure base plate; 211. Guide rail one; 212. Slider four; 121. Guide rail four; 12 ... 1. Block 1; 22. Manual lead screw; 23. Lead screw mounting plate; 24. Pressure frame; 25. Module contour plate 1; 251. Pin hole 2; 3. End stop assembly; 31. Module contour plate 2; 311. Pin hole 3; 32. Mounting bracket; 4. Side blocking assembly; 41. Pad; 42. Pin 1; 43. Mounting plate 3; 5. End contour assembly; 51. Module contour plate 3; 52. Mounting plate 4; 53. Pin 2; 6. Welding pressure head assembly; 61. Welding pressure head; 62. Quick clamp; 63. Guide short shaft; 64. Pressure head mounting plate; 65. Slider mounting plate; 7. Wide cell module; 8. Narrow cell module; 91. Electrode; 92. Terminal post. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0034] As shown in Figures 1 to 7, a blade battery cell stacking device includes: a base plate assembly 1 for stacking blade batteries into a battery cell module; an end stop assembly 3 for positioning the end of the battery cell module; a side blocking assembly 4 for positioning the side of the battery cell module; an end pressurizing assembly 2 for applying a set pressure to the battery cell module; and a plurality of welding head assemblies 6 for welding the battery cell module.

[0035] As shown in Figure 2, the base plate assembly 1 includes: a base plate 11 and several cell brackets mounted on the base plate 11; the cell brackets are assembled from several mounting plates 13 and mounting plates 14.

[0036] As shown in Figures 2 and 3, the end pressure assembly 2 includes: a pressure base plate 21; a guide rail 211 mounted on the pressure base plate 21; a slider 212 slidably connected to the guide rail 211; a pressure frame 24 mounted on the slider 212; a module conforming plate 25 mounted on the pressure frame 24 for abutting against one side of the battery cell module; and a pressure regulating assembly mounted on the pressure base plate 21 for pushing the pressure frame 24 to slide relative to the pressure base plate 21. The module conforming plate has a similar end shape to the battery cell module, contacts the battery cell module to transmit force, and is provided with different slots and gaps to avoid the battery cell module lifting grippers, etc.

[0037] The pressure regulating assembly includes a screw mounting plate 23 mounted on a pressure base plate 21 and a manual screw 22 threadedly connected to the screw mounting plate 23.

[0038] The pressure base plate 21 is slidably connected to the base plate 11 via a slide rail assembly, and a guide rail clamp is provided inside the slide rail assembly. The slide rail assembly includes a first slide rail assembly 17 and a second slide rail assembly 18. The first slide rail assembly 17 includes a second guide rail 171 mounted on the base plate 11, a second slider 172 slidably connected to the second guide rail 171, and a first guide rail clamp 173 for locking the relative position of the second slider 172 and the second guide rail 171. The second slide rail assembly 18 includes a third guide rail 181 mounted on the base plate 11, a third slider 182 slidably connected to the third guide rail 181, and a second guide rail clamp 183 for locking the relative position of the third slider 182 and the third guide rail 181.

[0039] As shown in Figures 2 and 4, the end stop assembly 3 includes: a mounting bracket 32 ​​mounted on the base plate 11 and a module contour plate 31 mounted on the mounting bracket 32.

[0040] As shown in Figures 2 and 5, the side blocking assembly 4 includes: a pad 41; a pin 42 disposed on the pad 41 for connection with a corresponding pin hole 111 on the base plate 11; and a mounting plate 43 disposed on the pad 41 for mounting and dismounting the pad 41. The pad 41 contacts the battery cell module and is used to maintain the flatness of the sides of the battery cell module during stacking.

[0041] As shown in Figures 2 and 6, end contouring components 5 are respectively installed on the end stop assembly 3 and the end pressurizing assembly 2. The end contouring component 5 includes a module contouring plate 3 51, which is mounted on a mounting plate 4 52. The mounting plate 4 52 is provided with a pin 2 53, which is used to connect with the corresponding pin hole 311 on the end stop assembly 3 or the corresponding pin hole 251 on the end pressurizing assembly 2.

[0042] As shown in Figures 2 and 7, the welding pressure head assembly 6 includes: a slider mounting plate 65, a guide short shaft 63 and a quick clamp 62 mounted on the slider mounting plate 65, a pressure head mounting plate 64 connected to the guide short shaft 63, and a welding pressure head 61 connected to the pressure head mounting plate 64; the slider mounting plate 65 is mounted on the base plate 11 via a welding slide rail assembly.

[0043] The welding slide rail assembly includes: welding slide rail assembly one 12, welding slide rail assembly two 15, and welding slide rail assembly three 16; welding slide rail assembly one 12 includes a guide rail four 121 mounted on a base plate 11, and a slider four 122 slidably connected to the guide rail four 121; welding slide rail assembly two 15 includes a guide rail five 151 mounted on a base plate 11, and a slider five 152 slidably connected to the guide rail five 151; welding slide rail assembly three 16 includes a guide rail six 161 mounted on a base plate 11, and a slider six 162 slidably connected to the guide rail six 161.

[0044] The following describes the usage of the blade cell stacking device described in this utility model through the process of stacking wide blade cells into a wide cell module 7.

[0045] As shown in Figures 1-8, before stacking begins, the end pressure assembly 2 slides to a set position via sliders 172 and 182. Wide-blade cells are then picked up and placed upright on mounting plate 14, and arranged in sequence, starting from the module contour plate 31 and pad 41. When the number of cells reaches the module design value, the front and rear end plates and other related components of the module are installed. Then, the end pressure assembly 2 is manually pushed along slide rail assembly 17 and slide rail assembly 18 to the wide-cell module 7. Guide rail clamps 173 and 183 activate, locking sliders 172 and 182. The end pressure assembly 2 is also locked in place. Then, the manual lead screw 22 is manually cranked, and module contour plate 25 contacts the wide-cell module 7 and begins applying pressure. After reaching the set position, the base plate assembly 1, end pressure assembly 2, end stop assembly 3, and side blocking assembly 4 are stacked together to obtain the wide-cell module 7. Specifically, before stacking wide blade cells into modules, the welding pressure head assembly 6 installed on the welding slide rail assembly 316 needs to be removed and placed aside to facilitate the stacking of wide blade cell modules.

[0046] After being stacked into groups, the module electrode 91 is welded to the blade cell terminal 92 using the welding head assembly 6. Specifically, the welding head assembly 6 is mounted on sliders 4 122 and 5 152. The welding head assembly 6 can slide along guide rails 4 121 and 5 151 according to welding requirements. When welding a terminal and electrode of a blade cell, the welding head assembly 6 slides into position, and the quick clamp 62 is manually pressed or lifted. Under the guidance of the guide short shaft 63 and the clamping force provided by the quick clamp 62, the welding head 61 presses the electrode 91 onto the terminal 92 of the blade cell. Then, according to the settings, the relevant laser welding device begins to weld the electrode and terminal, fixing them together. The welding head assembly 6 slides and welds in sequence according to requirements, cooperating with the laser welding device to complete the welding of the electrode and terminal.

[0047] The following describes the usage of the blade cell stacking device of this utility model by further illustrating the process of stacking narrow blade cells into a narrow cell module 8.

[0048] The steps for stacking narrow blade cells into a narrow cell module 8 are the same as those for stacking wide blade cells into a wide cell module 7. The result after stacking is shown in Figure 9. Specifically, before stacking, the end-shaping component 5 must be connected and installed to the front of the end-stop component 3 and the end-pressurizing component 2 via pin 2 53. Then, the stacking operation and the subsequent welding operation begin. Specifically, the welding pressure head component 6 is installed on the slider 6 162 of the welding slide rail component 3 16. Following the same steps as the welding of the electrode plates and terminals of the wide cell module, the welding of the electrode plates and terminals of the narrow blade cell module begins. Specifically, the external dimensions of the end-shaping component 5 are similar to the end shape of the narrow blade cell module, and it is specifically designed for stacking modules.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A blade battery cell stacking device, characterized in that, include: A base plate assembly (1) for stacking blade cells into a cell module is mounted on the base plate assembly (1), an end stop assembly (3) for positioning the end of the cell module, a side blocking assembly (4) for positioning the side of the cell module, an end pressurizing assembly (2) for applying a set pressure to the cell module, and several welding head assemblies (6) for welding the cell module.

2. The blade cell stacking device according to claim 1, characterized in that, The base plate assembly (1) includes: a base plate (11) and a plurality of cell brackets mounted on the base plate (11); the cell brackets are assembled from a plurality of mounting plates one (13) and mounting plates two (14).

3. The blade cell stacking device according to claim 1, characterized in that, The end stop assembly (3) includes: a mounting bracket (32) mounted on the base plate assembly (1) and a module contour plate (31) mounted on the mounting bracket (32).

4. The blade cell stacking device according to claim 1, characterized in that, The side blocking assembly (4) includes: a pad (41); and a pin (42) disposed on the pad (41) for connection with the base plate assembly (1).

5. The blade cell stacking device according to claim 1, characterized in that, The end pressurizing assembly (2) includes: a pressurizing base plate (21); a guide rail (211) mounted on the pressurizing base plate (21); a slider (212) slidably connected to the guide rail (211); a pressurizing frame (24) mounted on the slider (212); a module conforming plate (25) mounted on the pressurizing frame (24) for abutting against one side of the battery cell module; and a pressure regulating assembly mounted on the pressurizing base plate (21) for pushing the pressurizing frame (24) to slide relative to the pressurizing base plate (21).

6. The blade cell stacking device according to claim 5, characterized in that, The pressure regulating assembly includes a screw mounting plate (23) mounted on the pressure base plate (21) and a manual screw (22) threadedly connected to the screw mounting plate (23).

7. The blade cell stacking device according to claim 5, characterized in that, The pressure base plate (21) is slidably connected to the base plate assembly (1) through a slide rail assembly, and a guide rail clamp is provided in the slide rail assembly.

8. The blade cell stacking device according to claim 1, characterized in that, The welding head assembly (6) includes: a slider mounting plate (65), a guide short shaft (63) and a quick clamp (62) mounted on the slider mounting plate (65), a head mounting plate (64) connected to the guide short shaft (63), and a welding head (61) connected to the head mounting plate (64); the slider mounting plate (65) is mounted on the base plate assembly (1) via a welding slide rail assembly.

9. The blade cell stacking device according to claim 1, characterized in that, End profile components (5) are respectively installed on the end stop assembly (3) and the end pressurization assembly (2).

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