A tooling for an electric cell stack

Abstract

The utility model discloses a kind of tooling of electric core stacking, belong to battery assembly technical field, including carrier bottom plate, carrier bottom plate is fixedly connected with stacking bottom plate, electric core is installed on stacking bottom plate, the both ends of stacking bottom plate are fixedly connected with side limiting block, side limiting block is used to limit the end of electric core, the both sides of electric core are also respectively abutted with side positioning mechanism and side clamping mechanism, the lower end of side positioning mechanism and side clamping mechanism is fixedly connected on carrier bottom plate, side positioning mechanism and side clamping mechanism are laterally positioned to electric core, the upper end of electric core is installed with upper pressing plate.The utility model has the advantages that: reduce the end plate of tooling in module stacking process.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly technology, specifically to a tooling for stacking battery cells. Background Technology

[0002] Currently, stacking fixtures for lithium-ion battery blade cells are mostly fixed and positioned by end plates on both sides, with the cells stacked sequentially, or the battery pack base is designed as a structure with a base plate and end plates to facilitate cell stacking.

[0003] Existing cell stacking fixtures cannot easily accommodate stacked modules into battery pack housings with different structures currently on the market. For the long and thin blade cells, ensuring stacking consistency during the stacking process is difficult, placing higher demands on battery pack manufacturing processes and equipment. Utility Model Content

[0004] The present invention aims to solve the technical problems mentioned in the background section above, and provides a tooling for stacking battery cells, reducing the end plates of the tooling during module stacking, applicable to the process requirements of battery pack boxes with different structures, and solving the problem of poor consistency in blade battery cell stacking.

[0005] Based on the above objectives, the technical solution provided by this utility model is as follows: a tooling for stacking battery cells, including a carrier base plate, a stacking base plate fixedly connected to the carrier base plate, battery cells mounted on the stacking base plate, side limiting blocks fixedly connected to both ends of the stacking base plate, the side limiting blocks being used to limit the ends of the battery cells, a side positioning mechanism and a side clamping mechanism respectively abutting on both sides of the battery cells, the lower ends of the side positioning mechanism and the side clamping mechanism being fixedly connected to the carrier base plate, the side positioning mechanism and the side clamping mechanism performing lateral positioning of the battery cells, and an upper pressure plate mounted on the upper end of the battery cells.

[0006] In some embodiments, side positioning blocks are provided on both non-opposing sides of the stacked base plate. The side positioning blocks are fixedly connected to the base plate of the carrier and are used to perform lateral positioning of the stacked base plate.

[0007] In some embodiments, a side limiting clamp is provided on the side of the stacked base plate that is not provided with a side positioning block. The side limiting clamp is fixedly connected to the base plate of the carrier and is used to clamp the side of the stacked base plate so that the stacked base plate is clamped and positioned under the action of the side positioning block and the side limiting clamp.

[0008] In some embodiments, the side limiting clamp includes a limiting clamp mounting base, one end of which is hinged to a trigger, the middle of which is hinged to an arc-shaped connecting rod, and the other end of which is hinged to a slide rod. A guide sleeve is fixedly connected to one end of the limiting clamp mounting base near the slide rod, and the slide rod is slidably connected to the guide sleeve. A telescopic push head is installed at the end of the slide rod away from the trigger. The telescopic push head has an external thread, and the slide rod has an internal thread. The telescopic push head is threadedly connected to the slide rod.

[0009] In some embodiments, a limit nut is also installed between the end of the telescopic pusher and the slide bar.

[0010] In some embodiments, the side positioning mechanism includes a side positioning frame, the lower end of which is fixedly connected to the base plate of the carrier by a quick-locking device, a limiting plate is fixedly connected to the end of the side positioning frame near the battery cell, and a battery cell positioning block and a battery cell pole positioning block are fixedly connected to the side of the limiting plate near the battery cell. The lower end of the quick-locking device is a stud, and the upper end is a knob. The side positioning bracket can be quickly fixed and connected to the corresponding threaded hole in the base plate of the vehicle by turning the knob.

[0011] In some embodiments, the side clamping mechanism includes a side positioning frame, the lower end of which is fixedly connected to the base plate of the carrier via a quick-locking device, a limiting plate is fixedly connected to the end of the side positioning frame near the battery cell, a battery cell electrode positioning block is slidably connected to the side of the limiting plate near the battery cell via a guide rod, and a battery cell positioning block is also fixedly connected to the side of the limiting plate near the battery cell. The lower end of the quick-locking device is a stud, and the upper end is a knob. The side positioning bracket can be quickly fixed and connected to the corresponding threaded hole in the base plate of the vehicle by turning the knob. It also includes a quick clamp, which is used to push the cell terminal positioning block to clamp and position the cell.

[0012] In some embodiments, the guide rod is fixedly connected to the battery cell electrode positioning block, and the other end of the guide rod passes through and is slidably connected to the limiting plate. A reset pin is also fixedly connected to the battery cell electrode positioning block. The other end of the reset pin passes through and slides on the limiting plate. The end of the reset pin away from the battery cell electrode positioning block is provided with a flange. An elastic element is provided between the flange and the outer side of the limiting plate and sleeved on the reset pin. The quick clamp includes a quick clamp mounting base, one end of which is fixedly connected to the outer side of the limiting plate. A connecting rod is hinged to one end of the quick clamp mounting base, and a wrench is hinged to the other end of the connecting rod. A push rod is also hinged to the wrench. The push rod is slidably connected to the quick clamp mounting base, and the end of the push rod away from the wrench passes through the limiting plate and is connected to the battery cell electrode positioning block.

[0013] In some embodiments, an insulating base plate is also installed between the stacking base plate and the lower end face of the battery cell.

[0014] In some embodiments, the upper pressure plate includes a top plate, an upper positioning strip, and an upper positioning block. The upper positioning strip is fixedly connected to the lower end of the top plate, and the upper positioning block is fixedly connected to the side of the top plate for lateral positioning of the upper positioning strip. The lower end of the upper positioning strip is provided with multiple protruding ribs, which are arranged sequentially with the cell width as the spacing reference.

[0015] The advantages of this utility model compared with the prior art are as follows: 1. The elimination of the side end plates reduces the number of tooling components and lowers the difficulty of subsequent processes, making it applicable to various battery pack housing mechanisms; 2. The design of the side positioning mechanism on both sides of the stacking tooling, the internal design of the cell limiting block of the side clamping mechanism, and the auxiliary design of the guide rod and reset pin can ensure the accuracy requirements of manually stacked cells; 3. The side positioning mechanism installed on the carrier with a quick-locking device can quickly install and remove the tooling, improving production efficiency.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the tooling for stacking battery cells according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the carrier base plate in the battery cell stacking fixture of this utility model embodiment; Figure 3 This is a schematic diagram of the stacking base plate in the battery cell stacking fixture of this utility model embodiment; Figure 4 This is a schematic diagram of the side positioning mechanism in the cell stacking fixture of this utility model embodiment; Figure 5 This is a schematic diagram of the side clamping mechanism in the cell stacking fixture of this utility model embodiment; Figure 6 This is a schematic diagram of the outer side structure of the upper pressure plate in the cell stacking fixture of this utility model embodiment; Figure 7 This is a schematic diagram of the inner side structure of the upper pressure plate in the cell stacking fixture of this utility model embodiment; Figure 8 This is a schematic diagram of the inner side of the limiting plate in the cell stacking fixture of this utility model embodiment; Figure 9 This is a schematic diagram of the side limiting clamp structure of the battery cell stacking fixture according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the quick clamping device structure of the battery cell stacking fixture according to an embodiment of the present invention; Figure 11This is a schematic diagram of the guide rod and reset pin of the cell stacking fixture according to an embodiment of the present invention; In the attached diagram: 1. Upper pressure plate; 2. Battery cell; 3. Limiting plate; 4. Quick clamp; 5. Guide rod; 6. Reset pin; 7. Quick locking device; 8. Stacking base plate; 9. Side positioning block; 10. Lifting ring; 11. Side limiting block; 12. Side limiting clamp; 13. Carrier base plate; 14. Support block; 15. Positioning pin; 16. Insulating base plate; 17. Battery cell positioning block; 18. Battery cell terminal positioning block; 19. Upper positioning strip; 20. Upper positioning block; 21. Side positioning frame; 401. Quick-clamp mounting base; 402. Linkage bracket; 403. Wrench; 404. Push rod; 1201, Limit clamp mounting base; 1202, Trigger; 1203, Arc-shaped connecting rod; 1204, Slide rod; 1205, Guide sleeve; 1206, Telescopic push head; 1207, Limit nut. Detailed Implementation

[0018] The present invention will now be described in further detail.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] Combination Figure 1 , Figure 2 , Figure 3 The tooling shown is for stacking battery cells 2. All parts that come into contact with the battery cells 2 are made of insulating material. Four support blocks 14 are fixedly connected to the base plate 13 of the carrier. The four support blocks 14 are arranged in a ladder shape with two horizontal and two vertical lines. A stacking base plate 8 is fixedly connected to the support blocks 14. An insulating base plate 16 is installed on the stacking base plate 8. The battery cells 2 are installed on the insulating base plate 16. Side limiting blocks 11 are fixedly connected to both ends of the stacking base plate 8. The side limiting blocks 11 are used to limit the end of the battery cell 2. The front and rear sides of the battery cell 2 are respectively abutted by a side positioning mechanism and a side clamping mechanism. The lower ends of the side positioning mechanism and the side clamping mechanism are fixedly connected to the carrier base plate 13. The side positioning mechanism and the side clamping mechanism perform lateral positioning of the battery cell 2. An upper pressure plate 1 is installed on the upper end of the battery cell 2.

[0021] Side positioning blocks 9 are installed on the front and right sides of the stacking base plate 8. The side positioning blocks 9 are bolted to the carrier base plate 13 and are used to position the stacking base plate 8 laterally.

[0022] Side limiting clamps 12 are installed on the left and rear sides of the stacking base plate 8. The side limiting clamps 12 are fixedly connected to the carrier base plate 13. The side limiting clamps 12 are used to clamp the side of the stacking base plate 8, so that the stacking base plate 8 is clamped and positioned under the action of the side positioning block 9 and the side limiting clamps 12.

[0023] Lifting rings 10 are provided on the stacking base plate 8 to facilitate the replacement of stacking fixtures.

[0024] Combination Figure 9 As shown, the side limiting clamp 12 includes a limiting clamp mounting base 1201. A trigger 1202 is hinged to the upper left side of the limiting clamp mounting base 1201. An arc-shaped connecting rod 1203 is hinged to the middle of the trigger 1202. A slide rod 1204 is hinged to the right end of the arc-shaped connecting rod 1203. A guide sleeve 1205 is fixedly connected to the upper right side of the limiting clamp mounting base 1201. The slide rod 1204 is slidably connected inside the guide sleeve 1205. The right end of the slide rod 1204 has an internal thread. The telescopic push head 1206 has an external thread. The telescopic push head 1206 is threadedly connected to the slide rod 1204. A limiting nut 1207 is also installed between the end of the telescopic push head 1206 and the slide rod 1204.

[0025] When the side limit clamp 12 is in use, press the trigger 1202 downward. At this time, the trigger 1202 pushes the slide bar 1204 and the telescopic push head 1206 to press the stacking base plate 8 to the right until the upper end baffle of the trigger 1202 abuts against the arc-shaped connecting rod 1203. At this time, the slide bar 1204 is in place and the telescopic push head 1206 clamps the stacking base plate 8 in place.

[0026] Combination Figure 4 , Figure 8 As shown, the side positioning mechanism includes a side positioning frame 21. The lower end of the side positioning frame 21 is fixedly connected to the base plate 13 of the carrier through a quick locking device 7. The end of the side positioning frame 21 near the battery cell 2 is fixedly connected to a limiting plate 3. The side of the limiting plate 3 near the battery cell 2 is fixedly connected to a battery cell 2 positioning block and a battery cell 2 pole positioning block. The lower end of the quick-locking device 7 is a stud, and the upper end is a knob. The side positioning bracket 21 can be quickly fixed and connected to the corresponding threaded hole in the base plate 13 of the vehicle by turning the knob.

[0027] Combination Figure 5 As shown, the side clamping mechanism also includes a side positioning frame 21. The lower end of the side positioning frame 21 is fixedly connected to the carrier base plate 13 by a quick-locking device 7. A limit plate 3 is fixedly connected to the end of the side positioning frame 21 near the battery cell 2. A battery cell 2 positioning block is fixedly connected to the side of the limit plate 3 near the battery cell 2. Combination Figure 11 As shown, the side of the limiting plate 3 closest to the battery cell 2 is slidably connected to the battery cell 2 electrode positioning block via the guide rod 5; The guide rod 5 is fixedly connected to the electrode positioning block of the battery cell 2, and the other end of the guide rod 5 passes through and is slidably connected to the limiting plate 3; A reset pin 6 is also fixedly connected to the positioning block of the battery cell 2 electrode post. The other end of the reset pin 6 passes through and slides on the limiting plate 3. The end of the reset pin 6 away from the positioning block of the battery cell 2 electrode post is provided with a flange. An elastic element is provided between the flange and the outer side of the limiting plate 3 and is sleeved on the reset pin 6. Combination Figure 10 As shown, the quick clamp 4 includes a quick clamp mounting base 401. The left end of the quick clamp mounting base 401 is fixedly connected to the outer side of the limiting plate 3. The right end of the quick clamp mounting base 401 is hinged to a connecting rod frame 402. The right end of the connecting rod frame 402 is hinged to a wrench 403. A push rod 404 is also hinged to the wrench 403. The push rod 404 is slidably connected inside the quick clamp mounting base 401. The left end of the push rod 404 away from the wrench 403 passes through the limiting plate 3 and is connected to the electrode positioning block of the battery cell 2.

[0028] When using the quick clamp 4, press the wrench 403 down, and the wrench 403 pushes the push rod 404 to the left until the connecting rod frame 402 is in a horizontal state. The baffle at the upper end of the connecting rod frame 402 abuts against the upper end of the wrench 403. At this time, the push rod 404 is in place, and the battery cell 2 pole positioning block clamps and positions the battery cell 2.

[0029] When the quick clamp 4 is released, pull the wrench 403 upwards, and the push rod 404 moves to the right, driving the battery cell 2 terminal positioning block to release the clamp on the battery cell 2. During this process, the reset pin 6 can pull the battery cell 2 terminal positioning block to the right under the action of the elastic element, keeping the battery cell 2 terminal positioning block stable and smooth in its reset.

[0030] Combination Figure 6 , Figure 7 As shown, the upper pressure plate 1 includes a top plate, an upper positioning strip 19 and an upper positioning block 20. The upper positioning strip 19 is fixedly connected to the lower end of the top plate, and the upper positioning block 20 is fixedly connected to the side of the top plate for lateral positioning of the upper positioning strip 19. The lower end of the upper positioning strip 19 is provided with multiple protruding ribs, which are arranged sequentially with the width of the battery cell 2 as the interval reference. The protruding ribs are located in the gap between the blade battery cells 2.

[0031] When using the battery cell stacking fixture of this utility model, the stacking base plate 8 is placed manually on the carrier base plate 13, and the stacking base plate 8 is fixed by the side positioning block 9 and the side limiting clamp 12. After the side positioning mechanism is installed and the position is adjusted, it is fixed by the quick locking device 7. After the side clamping mechanism is installed and the position is adjusted, it is fixed by the quick locking device 7, and then the battery cell 2 is placed into the limiting groove of the fixture. After the battery cells 2 are stacked, the wrench 403 of the quick clamping device 4 is pulled down to clamp the battery cell 2, so that the battery cell 2 is close to the side positioning mechanism. When it flows to the manual installation of the connecting piece station, the manual person places the upper pressure plate 1 on the top of the battery cell 2, removes the side positioning mechanism, installs the connecting piece, and prepares for welding.

[0032] The tooling for stacking battery cells 2 provided in this embodiment has a limit plate 3 on both sides of the battery cell 2 which is quickly locked and positioned by a quick-locking device 7. The side of the battery cell 2 has an adjustable limit block. The limit plate 3 is designed with a battery cell 2 positioning block, which can make the battery cells 2 easy to stack and ensure positioning. After all the battery cells 2 are stacked, the battery cell 2 positioning block and the quick clamp 4 clamp the battery cells 2, so that the battery cells 2 are tightly fixed on the limit plate 3.

[0033] The upper pressure plate 1 has limiting steps on its limiting strip and positioning block to ensure the positioning of the battery cell 2, guarantee the consistency of the stacked battery cells 2, and ensure the installation and welding of connecting pieces in subsequent processes. In addition, this design eliminates the need for positioning end plates on both sides of the battery cell 2, and can also meet the different requirements of the battery pack casing.

[0034] The limiting plates 3 on both sides of the core component of the stacked fixture can be quickly removed and installed by the quick-locking device 7 without affecting the hoisting module and the fixture base plate.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A tooling for stacking battery cells, characterized in that: The device includes a vehicle base plate (13), on which a stacking base plate (8) is fixedly connected. A battery cell (2) is installed on the stacking base plate (8). Both ends of the stacking base plate (8) are fixedly connected to side limiting blocks (11). The side limiting blocks (11) are used to limit the end of the battery cell (2). The two sides of the battery cell (2) are respectively abutted by a side positioning mechanism and a side clamping mechanism. The lower ends of the side positioning mechanism and the side clamping mechanism are fixedly connected to the vehicle base plate (13). The side positioning mechanism and the side clamping mechanism perform lateral positioning of the battery cell (2). An upper pressure plate (1) is installed on the upper end of the battery cell (2).

2. The tooling for stacking battery cells according to claim 1, characterized in that: The stacking base plate (8) is provided with side positioning blocks (9) on both non-opposite sides. The side positioning blocks (9) are fixedly connected to the carrier base plate (13) and are used to perform lateral positioning of the stacking base plate (8).

3. The tooling for stacking battery cells according to claim 2, characterized in that: The side of the stacked base plate (8) without the side positioning block (9) is provided with a side limiting clamp (12). The side limiting clamp (12) is fixedly connected to the base plate (13) of the vehicle. The side limiting clamp (12) is used to clamp the side of the stacked base plate (8) so that the stacked base plate (8) is clamped and positioned under the action of the side positioning block (9) and the side limiting clamp (12).

4. The tooling for stacking battery cells according to claim 3, characterized in that: The side limiting clamp (12) includes a limiting clamp mounting base (1201). One end of the limiting clamp mounting base (1201) is hinged to a trigger (1202). The middle part of the trigger (1202) is hinged to an arc-shaped connecting rod (1203). The other end of the arc-shaped connecting rod (1203) is hinged to a slide rod (1204). A guide sleeve (1205) is fixedly connected to one end of the limiting clamp mounting base (1201) near the slide rod (1204). The slide rod (1204) is slidably connected inside the guide sleeve (1205). A telescopic push head (1206) is installed at one end of the slide rod (1204) away from the trigger (1202). The telescopic push head (1206) is provided with an external thread. The slide rod (1204) is provided with an internal thread. The telescopic push head (1206) is connected to the slide rod (1204) by the thread.

5. The tooling for stacking battery cells according to claim 4, characterized in that: A limit nut (1207) is also installed between the end of the telescopic pusher (1206) and the slide bar (1204).

6. The tooling for stacking battery cells according to claim 1, characterized in that: The side positioning mechanism includes a side positioning frame (21), the lower end of which is fixedly connected to the base plate (13) of the vehicle via a quick-locking device (7). A limiting plate (3) is fixedly connected to one end of the side positioning frame (21) near the battery cell (2). A battery cell (2) positioning block and a battery cell (2) pole positioning block are fixedly connected to one side of the limiting plate (3) near the battery cell (2). The lower end of the quick-locking device (7) is a stud and the upper end is a knob. The side positioning frame (21) can be quickly fixed and connected to the corresponding threaded hole of the vehicle base plate (13) by turning the knob.

7. The tooling for stacking battery cells according to claim 1, characterized in that: The side clamping mechanism includes a side positioning frame (21). The lower end of the side positioning frame (21) is fixedly connected to the base plate (13) of the carrier through a quick locking device (7). A limiting plate (3) is fixedly connected to one end of the side positioning frame (2) near the battery cell (2). A battery cell (2) pole positioning block is slidably connected to one side of the limiting plate (3) near the battery cell (2) through a guide rod (5). A battery cell (2) positioning block is also fixedly connected to one side of the limiting plate (3) near the battery cell (2). The lower end of the quick-locking device (7) is a stud and the upper end is a knob. The side positioning frame (21) can be quickly fixed and connected to the corresponding threaded hole of the vehicle base plate (13) by turning the knob. It also includes a quick clamp (4), which is used to push the battery cell (2) pole positioning block to clamp and position the battery cell (2).

8. The tooling for stacking battery cells according to claim 7, characterized in that: The guide rod (5) is fixedly connected to the electrode positioning block of the battery cell (2), and the other end of the guide rod (5) passes through and is slidably connected to the limiting plate (3); A reset pin (6) is also fixedly connected to the electrode positioning block of the battery cell (2). The other end of the reset pin (6) passes through and is slidably connected to the limiting plate (3). The end of the reset pin (6) away from the electrode positioning block of the battery cell (2) is provided with a flange. An elastic element is provided between the flange and the outer side of the limiting plate (3) and sleeved on the reset pin (6). The quick clamp (4) includes a quick clamp mounting base (401), one end of which is fixedly connected to the outer side of the limiting plate (3). A connecting rod frame (402) is hinged to one end of the quick clamp mounting base (401), and a wrench (403) is hinged to the other end of the connecting rod frame (402). A push rod (404) is also hinged to the wrench (403). The push rod (404) is slidably connected to the quick clamp mounting base (401). The end of the push rod (404) away from the wrench (403) passes through the limiting plate (3) and is connected to the electrode positioning block of the battery cell (2).

9. The tooling for stacking battery cells according to claim 1, characterized in that: An insulating base plate (16) is also installed between the stacking base plate (8) and the lower end face of the cell (2).

10. The tooling for stacking battery cells according to claim 1, characterized in that: The upper pressure plate (1) includes a top plate, an upper positioning strip (19) and an upper positioning block (20). The upper positioning strip (19) is fixedly connected to the lower end of the top plate, and the upper positioning block (20) is fixedly connected to the side of the top plate for lateral positioning of the upper positioning strip (19). The lower end of the upper positioning strip (19) is provided with multiple ribs, and the multiple ribs are arranged sequentially with the width of the battery cell (2) as the spacing reference.

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