Battery module stacking and shaping device and method

Abstract

The present invention discloses a battery module stacking and shaping device, which includes a base, at least one stacking assembly, and a transportation assembly; the stacking assembly includes a stacking table and a shaping mechanism, the stacking table is fixedly connected to the base, the shaping mechanism is slidably connected to the base, both ends of the stacking table are respectively an initial shaping station and a stacking station, and the shaping mechanism reciprocatingly running between the initial shaping station and the stacking station is connected to the transportation assembly; the shaping mechanism includes a first shaping part, a second shaping part, and a lifting part that can move relative to or away from each other, a battery clamping space is formed between the first shaping part and the second shaping part, and the stacking table passes through the battery clamping space. The beneficial effects of the present invention are as follows: Each battery is individually shaped, and three-direction shaping of the module can be achieved after the module stacking is completed, significantly improving the qualification rate of subsequent processes of the module.

Description

Technical Field

[0001] The present invention relates to a method for processing a battery module, and particularly to a battery module stacking and shaping device and method. Background Art

[0002] Lithium batteries are used as the power source for electric vehicles. Especially for the key dimensions of square modules, technical requirements need to be met. Therefore, in the current actual production process, the battery modules will be shaped, and the shaping effect will directly affect the subsequent processing technology.

[0003] In the prior art, such as the application number: 201821413005.7, a battery module shaping device is arranged on a line guide rail. It is characterized in that it includes: a fixture tray slidably arranged on the line guide rail for carrying the battery module, side shaping mechanisms arranged at both ends of the fixture tray for tightly shaping the sides of the battery module, an upper pressing and positioning mechanism arranged above the fixture tray, an elastic lifting mechanism arranged below the fixture tray for pushing the battery module to be tightly pressed onto the upper pressing and positioning mechanism, and a blocking and positioning mechanism arranged at one end of the fixture tray for positioning the fixture tray. For the module formed by the glued batteries in this application, since the batteries are already connected by glue and the glue has strong adhesiveness, the shaping effect is very poor. The current shaping method: after multiple unglued batteries are stacked, the module is shaped from three directions, and this method is not applicable to the module formed by the glued batteries.

[0004] Gluing module forming method: a spacer is placed between two adjacent batteries, and both sides of the spacer are back-glued. After the two batteries are attached, relative sliding cannot occur. When the glued batteries form a module, if the length, sides, and top surface of the module are not shaped, after stacking, due to the strong adhesiveness of the glue, reshaping the module has little effect, resulting in a significant reduction in the qualified rate of subsequent process operations.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: how to solve the problem of poor shaping effect for the glued battery module in the prior art.

[0007] The present invention solves the above technical problem by the following technical means:

[0008] The battery module stacking and shaping device includes a base, at least one stacking assembly, and a transportation assembly; the stacking assembly includes a stacking table for receiving batteries and a shaping mechanism. The stacking table is fixedly connected to the base, and the shaping mechanism is slidably connected to the base. The two ends of the stacking table are respectively an initial shaping station and a stacking station, and the shaping mechanism that reciprocates between the initial shaping station and the stacking station is connected to the transportation assembly;

[0009] The shaping mechanism includes a first shaping part and a second shaping part that can move relatively or away from each other, and a lifting assembly for lifting the first shaping part and the second shaping part. A battery clamping space is formed between the first shaping part and the second shaping part, and the stacking table passes through the battery clamping space.

[0010] In the working process of the present invention, the first shaping part moves relatively to hold the first battery. At the initial shaping station, the second shaping part moves relatively to perform side shaping on the side of the battery. Then the first shaping part releases the battery, and the transportation assembly transports the battery together with the shaping mechanism to the stacking station on the stacking table. The large surface of the battery is shaped by the relative movement of the second shaping part and the stacking table, and the top and bottom of the battery are shaped by the lifting assembly and the second shaping part. The second shaping part and the lifting assembly release the battery, and the transportation assembly returns the shaping mechanism to the initial shaping station; the second battery after pasting is placed on the initial shaping station, and the above steps are repeated until all the batteries are stacked. By initially shaping the batteries at the initial shaping station and then transporting them to the stacking station for stacking, and performing secondary shaping during stacking, each battery is individually shaped, and the three-direction shaping of the module can be achieved when the module stacking is completed, significantly improving the qualification rate of the subsequent processes of the module.

[0011] Preferably, the lifting assembly includes a lifting support plate, a lifting plate, and a lifting cylinder. The base includes a transportation guide rail. The bottom of the lifting support plate includes a transportation slider, and the transportation slider is slidably connected to the transportation guide rail. The lifting cylinder is connected to the lifting support plate, and the telescopic end of the lifting cylinder is connected to the lifting plate. Both the first shaping part and the second shaping part are connected to the lifting plate.

[0012] The lifting assembly can cooperate with the second shaping part to shape the battery in the height direction.

[0013] Preferably, there are two first shaping parts, and the two first shaping parts are symmetrically installed along the vertical plane of the stacking table. The first shaping part includes a first bracket, a battery bracket for supporting the bottom of the battery, a battery edge for holding the large surface of the battery, and a first sliding assembly. The first bracket is slidably connected to the top of the lifting assembly through the first sliding assembly. The battery bracket is connected to the first bracket, and the battery edge is connected to the first bracket.

[0014] Preferably, the first sliding component includes a first cylinder, a first guide rail, and a first slider. The first guide rail is connected to the top of the lifting component. The bottom of the first bracket is connected to the first slider. The first slider is slidably connected to the first guide rail. The first slider is connected to the telescopic end of the first cylinder.

[0015] Preferably, the battery bracket is a right-angled structure surrounded by three sides, and the battery edge guard is a Z-shaped structure.

[0016] The structure of the battery bracket can adapt to the external contour of the square battery, fit it more closely, and improve the surface accuracy during shaping.

[0017] Preferably, there are two second shaping parts. The two second shaping parts are symmetrically installed along the vertical plane of the stacking table. The second shaping part includes a vertical plate, a second bracket, a top pressing block for pressing the top of the battery, a large surface pressing block for pressing the large surface of the battery, a side surface pressing block for pressing the side surface of the battery, a second sliding component, and a third sliding component. The bottom of the vertical plate is slidably connected to the top of the lifting component through the second sliding component. The second bracket is slidably connected to the vertical plate through the third sliding component. The top pressing block is connected to the top of the second bracket. The large surface pressing block is connected to the side surface of the second bracket. The side surface pressing block is connected to the second bracket.

[0018] The symmetrical installation of the two first shaping parts and the symmetrical installation of the two second shaping parts are to adapt to the symmetry of the battery, so that the force during shaping is uniform.

[0019] Preferably, the second sliding component includes a second cylinder, a second guide rail, and a second slider. The second cylinder is connected to the top of the lifting component. The second guide rail is connected to the top of the lifting component. The bottom of the vertical plate is connected to the second slider. The second slider is slidably connected to the second guide rail. The second slider is connected to the telescopic end of the second cylinder.

[0020] Preferably, the third sliding component includes a third guide rail, a third slider, a connecting rod, and a spring. The third guide rail is connected to the vertical plate. The third slider is connected to the second bracket. The third slider is connected to the third guide rail. One side of the vertical plate has a bend. The two ends of the connecting rod are respectively connected to the bend and the side surface of the second bracket. The spring is sleeved on the connecting rod.

[0021] The third sliding component enables the second bracket where the top pressing block, the large surface pressing block, and the side surface pressing block are located to slide along the thickness direction of the battery with the vertical plate. When the battery is stacked at the stacking station, the spring can buffer the force in the thickness direction during large surface shaping, avoiding damage to the battery surface due to excessive pressure.

[0022] Preferably, the stacking table includes a stacking bracket, a stacking plate, a battery slot, a battery placement plate, and a stacking baffle. The stacking bracket is fixedly connected to both ends of the base. The stacking plate is connected to the stacking plates at both ends. The battery slot is connected to the stacking plate. The battery placement plate is connected to the stacking plate and is located at the initial shaping station. The stacking baffle is connected to one end of the stacking plate away from the battery placement plate.

[0023] Both sides of the battery slot have wedge-shaped protrusions for restricting the position of the battery and ensuring that the battery is always located on the stacking table.

[0024] The present invention also provides a method for stacking and shaping a battery module. The first shaping part moves relatively and holds the first battery. At the initial shaping station, the second shaping part moves relatively and clamps the side of the battery for side shaping. Then the first shaping part releases the battery and returns to the initial position. The battery together with the shaping mechanism is transported to the stacking station on the stacking table through the transportation assembly. The large surface of the battery is shaped by the relative movement of the second shaping part and the stacking table. The top and bottom of the battery are shaped by the lifting assembly and the second shaping part. The second shaping part and the lifting assembly release the battery, and the shaping mechanism is returned to the initial shaping station through the transportation assembly. The second glued battery is placed on the initial shaping station, and the above steps are repeated until all the batteries are stacked.

[0025] The advantages of the present invention are as follows:

[0026] (1) In the working process of the present invention, the first glued battery is placed on the initial shaping station. The first shaping part holds the battery, and the side of the battery is clamped and shaped by the relative movement of the second shaping part. Then the first shaping part releases the battery, and the battery together with the shaping mechanism is transported to the stacking station on the stacking table through the transportation assembly. The large surface of the battery is shaped by the second shaping part, and the top and bottom of the battery are shaped by the lifting assembly and the second shaping part. The second shaping part and the lifting assembly release the battery, and the shaping mechanism is returned to the initial shaping station through the transportation assembly. The second glued battery is placed on the initial shaping station, and the above steps are repeated until all the batteries are stacked. The present invention preliminarily shapes the battery at the initial shaping station, then transports the battery to the stacking station for stacking, and performs re-shaping during stacking. Each battery is shaped individually, and the three-direction shaping of the module can be achieved when the module stacking is completed, significantly improving the qualification rate of the subsequent processes of the module. This application adjusts the posture of the battery before battery bonding to ensure the consistency of the three-direction dimensions of the battery after bonding.

[0027] (2) The first shaping part holds the battery, and the second shaping part can shape the battery in the width direction; and the two first shaping parts are symmetrically installed to adapt to the symmetry of the battery, so that the shaping force is uniform.

[0028] (3) Shaping the battery in the thickness direction through the relative movement of the second shaping part and the stacking table; the lifting component can be combined with the second shaping part to shape the battery in the height direction; the two second shaping parts are symmetrically installed to adapt to the symmetry of the battery, so that the shaping force is evenly distributed.

[0029] (4) The third sliding component enables the second bracket where the top pressing block, the large-surface pressing block, and the side pressing block are located to slide along the thickness direction of the battery with the vertical plate. When the battery is stacked at the stacking station, the spring can buffer the force in the thickness direction during the large-surface shaping to avoid damaging the battery surface due to excessive pressure.

[0030] (5) Both sides of the battery slot have wedge-shaped protrusions for restricting the position of the battery to ensure that the battery is always located on the stacking table. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the battery module stacking and shaping device according to the embodiment of the present invention;

[0032] Figure 2 It is a schematic structural diagram of the battery module stacking and shaping device according to the embodiment of the present invention;

[0033] Figure 3 It is a schematic structural diagram of the stacking assembly according to the embodiment of the present invention;

[0034] Figure 4 It is a schematic structural diagram of the first shaping part, the second shaping part, and the lifting component according to the embodiment of the present invention;

[0035] Figure 5 It is a schematic structural diagram of the first shaping part, the second shaping part, and the lifting component according to the embodiment of the present invention;

[0036] Figure 6a It is a schematic structural diagram of the first shaping part in the embodiment of the present invention;

[0037] Figure 6b It is a schematic structural diagram of the connection structure between the first shaping part and the battery in the embodiment of the present invention;

[0038] Figure 7a It is a schematic structural diagram of the second shaping part in the embodiment of the present invention;

[0039] Figure 7b It is a schematic structural diagram of the second shaping part in the embodiment of the present invention;

[0040] Figure 7c It is a schematic structural diagram of the connection structure between the second shaping part and the battery in the embodiment of the present invention;

[0041] Figure 8a It is a schematic structural diagram of the stacking table in the embodiment of the present invention;

[0042] Figure 8b is Figure 8a The enlarged view of part A in

[0043] Figure 9a The schematic structural view of the stacking assembly in the embodiment of the present invention;

[0044] Figure 9b is Figure 9a The enlarged view of part B in

[0045] Figure 10 The schematic structural view of the stacking plate and the battery slot in the embodiment of the present invention;

[0046] Reference numerals in the figure:

[0047] 1. Base; 11. Transportation guide rail;

[0048] 2. Stacking assembly; 21. Stacking table; 211. Stacking bracket; 212. Stacking plate; 213. Battery slot; 214. Battery placement plate; 215. Stacking baffle; 216. Stacking cylinder; 217. Side clamping mechanism; 22. First shaping part; 221. First bracket; 222. Battery carrier; 223. Battery edge stop; 224. First cylinder; 225. First guide rail; 226. First slider; 23. Second shaping part; 231. Vertical plate; 232. Second bracket; 233. Top pressing block; 234. Large surface pressing block; 235. Side pressing block; 236. Second sliding assembly; 2361. Second cylinder; 2362. Second guide rail; 2363. Second slider; 237. Third sliding assembly; 2371. Third guide rail; 2372. Third slider; 2373. Connecting rod; 2374. Spring;

[0049] 3. Transportation assembly; 4. Battery; Specific embodiments

[0050] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] Embodiment 1:

[0052] As shown in Figure 1 , Figure 2As shown in the figure, the battery module stacking and shaping device includes a base 1, four stacking assemblies 2, and a transportation assembly 3. Among them, the base 1 is a triangular frame structure, and the right side of the base 1 is the working surface. The four stacking assemblies 2 and the transportation assembly 3 are both installed on the working surface. The working surface forms an angle of 30° - 75° with the ground. In this embodiment, the working surface forms an angle of 60° with the ground. The inclined working surface can utilize its own weight to maintain the shaping effect of the battery module during the battery stacking process.

[0053] Among them, the top position is the initial shaping station, and the bottom is the stacking station. As the batteries 4 are stacked one by one, the stacking station will also rise accordingly.

[0054] In this embodiment, four stacking assemblies 2 are taken as an example, but it is not limited thereto. The number of stacking assemblies 2 can be increased or decreased according to requirements.

[0055] Combined with Figure 1 、 Figure 3 As shown in the figure, the stacking assembly 2 includes a stacking table 21 and a shaping mechanism. The stacking table 21 is fixedly connected to the base 1. The two ends of the stacking table 21 are respectively the initial shaping station and the stacking station. In Figure 3 the left end of the stacking table 21 is the initial shaping station, and the right end is the stacking station; the shaping mechanism includes a first shaping part 22, a second shaping part 23, and a lifting assembly 24. A battery clamping space is jointly formed between the first shaping part 22 and the second shaping part 23 and above the stacking table 21. Among them, the first shaping part 22 and the second shaping part 23 are located on both sides of the stacking table 21, and the stacking table 21 passes through the battery clamping space.

[0056] As Figure 4 、 Figure 5 shown, there are two first shaping parts 22, and the two first shaping parts 22 are symmetrically installed along the vertical plane of the stacking table 21; the symmetrical installation of the two first shaping parts 22 can adapt to the symmetry of the battery 4, making the force evenly distributed during shaping.

[0057] In this embodiment, one of the first shaping parts 22 is taken as an example for elaboration. Combined with Figure 6a 、 Figure 6b shown, Figure 6a is the structure when the first shaping part 22 is not connected to the battery 4, Figure 6bThe structure when the first shaping part 22 is connected to the battery 4; the first shaping part 22 includes a first bracket 221, a battery bracket 222, a battery edge stop 223, a first cylinder 224, a first guide rail 225, and a first slider 226; the first guide rail 225 is connected to the top of the lifting assembly 24, the bottom of the first bracket 221 is connected to the first slider 226, the first slider 226 is slidably connected to the first guide rail 225, and the first slider 226 is connected to the telescopic end of the first cylinder 224. The first cylinders 224 of the two first shaping parts 22 act simultaneously, enabling the first brackets 221 of the two first shaping parts 22 to move relatively or away from each other. When moving relatively, the battery 4 can be clamped, and when moving away from each other, the battery 4 is released.

[0058] The battery bracket 222 has a right-angled structure surrounded by three sides, which can adapt to the outer contour of the square battery 4, making the battery bracket 222 fit more closely to the battery 4 and improving the surface accuracy during shaping. The battery edge stop 223 has a Z-shaped structure, one end of which is fixed to the top of the first bracket 221, and the other end can abut against the large surface of the battery 4; the battery bracket 222 and the battery edge stop 223 stabilize the large surface of the battery 4, facilitating the shaping work of the subsequent second shaping part 23.

[0059] As Figure 4 、 Figure 5 shown, there are two second shaping parts 23, and the two second shaping parts 23 are symmetrically installed along the vertical plane of the stacking table 21; the two second shaping parts 23 are symmetrically installed to adapt to the symmetry of the battery 4, so that the force during shaping is uniform.

[0060] In this embodiment, one of the second shaping parts 23 is taken as an example for elaboration. Combining Figure 7a 、 Figure 7b 、 Figure 7c shown, the second shaping part 23 includes a vertical plate 231, a second bracket 232, a top pressing block 233, a large surface pressing block 234, a side pressing block 235, a second sliding assembly 236, and a third sliding assembly 237; the bottom of the vertical plate 231 is slidably connected to the top of the lifting assembly 24 through the second sliding assembly 236, the second bracket 232 is slidably connected to the vertical plate 231 through the third sliding assembly 237, the top pressing block 233 is connected to the top of the second bracket 232, the large surface pressing block 234 is connected to the side of the second bracket 232, and the side pressing block 235 is connected to the second bracket 232.

[0061] The bottom surface of the top pressing block 233 is the pressing surface. The top pressing block 233 can be directly or indirectly fixedly connected to the second bracket 232. The pressing surface of the large surface pressing block 234 is a vertical surface, and it can be directly or indirectly fixedly connected to the second bracket 232 so that the pressing surface can fit the large surface of the battery 4. The side pressing block 235 is a vertical surface, and it can be directly or indirectly fixedly connected to the second bracket 232 so that the pressing surface can fit the side surface of the battery 4. Among them, the side pressing block 235 is an L-shaped structure, its long side clamps the side surface of the battery 4, and its short side can also clamp the large surface of the battery 4 at the same time.

[0062] The second sliding assembly 236 includes a second cylinder 2361, a second guide rail 2362, and a second slider 2363. The second cylinder 2361 is connected to the top of the lifting assembly 24. The second guide rail 2362 is connected to the top of the lifting assembly 24. The bottom of the vertical plate 231 is fixedly connected to the second slider 2363. The second slider 2363 is slidably connected to the second guide rail 2362. The second slider 2363 is connected to the telescopic end of the second cylinder 2361. The vertical plate 231 is a trapezoidal plate, and its bottom is directly or indirectly fixedly connected to the second slider 2363.

[0063] The third sliding assembly 237 includes a third guide rail 2371, a third slider 2372, a connecting rod 2373, and a spring 2374. The third guide rail 2371 is connected to the vertical plate 231. The third slider 2372 is connected to the second bracket 232. The third slider 2372 is connected to the third guide rail 2371. One side of the vertical plate 231 has a bend or a connecting block, and the bend and the connecting block are at a right angle to the vertical plate 231. The two ends of the connecting rod 2373 are respectively connected to the bend and the side surface of the second bracket 232. The spring 2374 is sleeved on the connecting rod 2373.

[0064] Direct connection means that the two are directly fixed together by means such as bolts, screws, welding, etc. Indirect connection means that the two are fixed together through intermediate parts such as connection blocks and connection brackets.

[0065] The third sliding assembly 237 enables the second bracket 232 and the top pressing block 233, the large surface pressing block 234, and the side pressing block 235 thereon to slide along the thickness direction of the battery 4. When the batteries 4 are stacked at the stacking station, the spring 2374 can buffer the force applied in the thickness direction during the large surface shaping, avoiding damage to the surface of the battery 4 due to excessive pressure; it can also, when not shaping, that is, after the large surface pressing block 234 disengages from the battery 4, use the elastic force of the spring 2374 to return to the initial state.

[0066] Such as Figure 4 、 Figure 5As shown, the lifting assembly 24 includes a lifting support plate 241, a lifting plate 242, a lifting cylinder 243, a transport slider 244, a guide post 245, a guide slider 246, and a transport connecting frame 247;

[0067] On the working surface of the base 1, a transport guide rail 11 is fixedly installed. The lifting support plate 241 is a rectangular plate, and the bottoms of its two ends are connected to the transport slider 244. It can be that the transport slider 244 is directly connected to the lifting support plate 241, or it can be connected at intervals through other transition blocks. The transport slider 244 is slidably connected to the transport guide rail 11. The cross-sections of the transport slider 244 and the transport guide rail 11 are not specifically limited, as long as they can be adapted to achieve a sliding connection. The lifting cylinder 243 is fixedly connected to the bottom of the lifting support plate 241 by screws. The telescopic end of the lifting cylinder 243 extends out of the lifting support plate 241 and is connected to the lifting plate 242. Among them, at both ends of the lifting support plate 241, guide sliders 246 are installed on both sides of the lifting cylinder 243. Two guide posts 245 are slidably connected within the guide sliders 246. The top ends of the guide posts 245 are connected to the lifting plate 242. The guide posts 245 can make the lifting more stable. The transport connecting frame 247 is a Z-shaped structure. One end of the transport connecting frame is connected to the end of the lifting support plate 241, and the other end is connected to the transport assembly 3. The transport connecting frame 247 is used to enable the entire shaping mechanism to move back and forth along the transport guide rail 11 driven by the transport assembly 3.

[0068] In this embodiment, two adjacent lifting assemblies 24 are in a connected state. Therefore, the lifting support plates 241 of two adjacent lifting assemblies 24 are in a connected state. In actual use, a single integral plate can be directly used.

[0069] Both the first shaping part 22 and the second shaping part 23 are connected to the lifting plate. Specifically, the first cylinder 224, the second cylinder 2361, the first guide rail 225, and the second guide rail 2362 are all fixed on the top surface of the lifting plate 242.

[0070] This embodiment also discloses the process of shaping and stacking using the above battery module stacking and shaping device:

[0071] The first battery stacking process: The first cylinder 224 operates, causing the first bracket 221 to move relatively, driving the battery carrier 222 and the battery edge guard 223 to move relatively until they are close to the length dimension of the battery 4. The manipulator places the first battery 4 on the battery carrier 222, and the battery edge guard 223 holds the large surface of the battery 4; The second cylinder 2361 operates, driving the second bracket 232 and the side pressing block 235 to clamp the battery 4, realizing the shaping of the side of the battery 4 and maintaining the clamping; Then the first cylinder 224 retracts, and the first bracket 221 and the battery edge guard 223 retract and no longer contact the battery 4; The battery 4 together with the shaping mechanism is transported to the stacking station on the stacking table 21 through the transportation assembly 3. The stacking station of the stacking table 21 has a baffle that restricts the continuous movement of the battery 4. The large surface pressing block 234 of the second shaping part 23 cooperates with the stacking table 21 to realize the shaping of the large surface of the battery 4. At this time, the speed of the transportation assembly 3 should not be too fast to avoid crushing the battery 4. With the transportation force of the transportation assembly 3 and the stacking table 21, the large surface is pressed tightly, or the transportation assembly 3 stops at the stacking station, and the end of the stacking table 21 moves towards the running direction of the battery 4 to realize the clamping of the battery 4; After the large surface is clamped, the large surface pressing block 234 is loosened appropriately. By the contraction of the lifting cylinder 243, the entire second shaping part 23 moves downward, and the dimension between the top pressing block 233 and the stacking table 21 becomes smaller, realizing the shaping of the top and bottom of the battery 4; After the height direction is completed, the lifting cylinder 243 rises to release the battery 4, and the shaping mechanism is returned to the initial shaping station through the transportation assembly 3;

[0072] Put the second battery 4 into the initial shaping station and repeat the above steps until all the batteries 4 are stacked.

[0073] When the second battery 4 is stacked at the stacking station, the large surface of the first battery 4 and the large surface pressing block 234 press the second battery 4 tightly.

[0074] In this embodiment, the battery 4 is initially shaped at the initial shaping station, and then the battery 4 is transported to the stacking station for stacking. During stacking, re-shaping is carried out. Each battery 4 is shaped individually, and the three-direction shaping of the module can be realized after the module stacking is completed, significantly improving the qualification rate of the subsequent processes of the module.

[0075] Embodiment 2:

[0076] As shown in FIGS. 8 and 9, in this embodiment, on the basis of the above Embodiment 1, the stacking table 21 is elaborated in detail; The stacking table 21 provides a stacking channel for the battery 4 and shapes and stacks the battery 4 together with the second shaping part 23 and the lifting assembly 24.

[0077] The stacking table 21 includes a stacking bracket 211, a stacking plate 212, a battery slot 213, a battery placement plate 214, a stacking baffle 215, a stacking cylinder 216, and a side clamping mechanism 217;

[0078] The stacking bracket 211 is of an L-shaped structure, and the stacking bracket 211 is fixedly connected to both ends of the base 1 ( Figure 1 the top and bottom in), the stacking plate 212 is connected to the stacking brackets 211 at both ends, the first shaping portion 22 and the second shaping portion 23 are located on both sides of the stacking plate 212, and the stacking plate 212 is located above the lifting plate 242; as Figure 10 shown, the battery slot 213 is connected to the stacking plate 212, wherein the battery slot 213 is formed by symmetrically and fixedly installing battery slot blocks on both sides of the stacking plate 212, and the side of the battery slot block has a wedge-shaped protrusion for restricting the position of the battery 4 to ensure that the battery 4 is always located on the stacking table 21; the battery placement plate 214 is connected to the stacking plate 212 and is located at the initial shaping station for placing the battery, and the stacking baffle 215 is connected to one end of the stacking plate 212 away from the battery placement plate 214.

[0079] In this embodiment, auxiliary clamping devices are also provided at the bottom of the stacking table 21, including a stacking cylinder 216 and a side clamping mechanism 217. When the stacking cylinder 216 extends, it can push the side clamping mechanism 217 forward and abut it at the stacking station. The bottom of the side clamping mechanism 217 can be slidably connected to the stacking plate 212. The two sides of the side clamping mechanism 217 have clamping plates, and the two clamping plates can move relatively or away from each other through the motion mechanism of the cylinder and the guide rail slider to clamp or position the two sides of the battery 4 at the stacking station, so as to assist in the neatness of multiple batteries 4 during stacking.

[0080] In the above embodiment, the transportation assembly 3 can be one or more as long as transportation can be achieved. It can be that one transportation assembly 3 drives multiple shaping mechanisms at the same time, or one transportation assembly 3 only drives one shaping mechanism.

[0081] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Battery module stacking and shaping device, Characterized in that, It includes a base, at least one stacking assembly, and a transportation assembly; the stacking assembly includes a stacking table for receiving batteries and a shaping mechanism. The stacking table is fixedly connected to the base, and the shaping mechanism is slidably connected to the base. The two ends of the stacking table are respectively an initial shaping station and a stacking station, and the shaping mechanism that reciprocates between the initial shaping station and the stacking station is connected to the transportation assembly; The shaping mechanism includes a first shaping part and a second shaping part that can move relatively or away from each other, and a lifting assembly for lifting the first shaping part and the second shaping part. A battery clamping space is formed between the first shaping part and the second shaping part, and the stacking table passes through the battery clamping space; There are two first shaping parts, and the two first shaping parts are symmetrically installed along the vertical plane of the stacking table. The first shaping part includes a first bracket, a battery bracket for supporting the bottom of the battery, a battery edge guard for holding the large surface of the battery, and a first sliding assembly. The first bracket is slidably connected to the top of the lifting assembly through the first sliding assembly. The battery bracket is connected to the first bracket, and the battery edge guard is connected to the first bracket; There are two second shaping parts, and the two second shaping parts are symmetrically installed along the vertical plane of the stacking table. The second shaping part includes a vertical plate, a second bracket, a top pressing block for pressing the top of the battery, a large surface pressing block for pressing the large surface of the battery, a side pressing block for pressing the side of the battery, a second sliding assembly, and a third sliding assembly. The bottom of the vertical plate is slidably connected to the top of the lifting assembly through the second sliding assembly. The second bracket is slidably connected to the vertical plate through the third sliding assembly. The top pressing block is connected to the top of the second bracket, the large surface pressing block is connected to the side of the second bracket, and the side pressing block is connected to the second bracket; After the large surface is clamped, the large surface pressing block is loosened. By contracting the lifting assembly, the entire second shaping part descends, and the distance between the top pressing block and the stacking table becomes smaller, realizing shaping of the top and bottom of the battery.

2. The battery module stacking and shaping device according to claim 1, Characterized in that, The lifting assembly includes a lifting support plate, a lifting plate, and a lifting cylinder. The base includes a transportation guide rail. The bottom of the lifting support plate includes a transportation slider, and the transportation slider is slidably connected to the transportation guide rail. The lifting cylinder is connected to the lifting support plate, and the telescopic end of the lifting cylinder is connected to the lifting plate. Both the first shaping part and the second shaping part are connected to the lifting plate.

3. The battery module stacking and shaping device according to claim 1, Characterized in that, The first sliding assembly includes a first cylinder, a first guide rail, and a first slider. The first guide rail is connected to the top of the lifting assembly. The bottom of the first bracket is connected to the first slider, and the first slider is slidably connected to the first guide rail. The first slider is connected to the telescopic end of the first cylinder.

4. The battery module stacking and shaping device according to claim 1, Characterized in that, The battery bracket is a right-angled structure surrounded by three sides, and the battery edge guard is a Z-shaped structure.

5. The battery module stacking and shaping device according to claim 1, It is characterized in that the second sliding component includes a second cylinder, a second guide rail, and a second slider. The second cylinder is connected to the top of the lifting component, the second guide rail is connected to the top of the lifting component, the bottom of the vertical plate is connected to the second slider, the second slider is slidably connected to the second guide rail, and the second slider is connected to the telescopic end of the second cylinder.

6. The battery module stacking and shaping device according to claim 1, It is characterized in that the third sliding component includes a third guide rail, a third slider, a connecting rod, and a spring. The third guide rail is connected to the vertical plate, the third slider is connected to the second bracket, the third slider is connected to the third guide rail, one side of the vertical plate has a bend, both ends of the connecting rod are respectively connected to the bend and the side surface of the second bracket, and the spring is sleeved on the connecting rod.

7. The battery module stacking and shaping device according to claim 1, It is characterized in that the stacking table includes a stacking bracket, a stacking plate, a battery slot, a battery placement plate, and a stacking baffle. The stacking bracket is fixedly connected to both ends of the base, the stacking plate is connected to the stacking plates at both ends, the battery slot is connected to the stacking plate, the battery placement plate is connected to the stacking plate and is located at the preliminary shaping station, and the stacking baffle is connected to one end of the stacking plate away from the battery placement plate.

8. A method of using the battery module stacking and shaping device according to any one of claims 1-7, It is characterized in that by the relative movement of the first shaping part to hold the first battery, at the preliminary shaping station, the second shaping part moves relatively to clamp the side of the battery for side shaping, then the first shaping part releases the battery and returns to the initial position, the battery together with the shaping mechanism is transported to the stacking station on the stacking table through the transportation assembly, the large surface of the battery is shaped by the relative movement of the second shaping part and the stacking table, the top and bottom of the battery are shaped by the lifting component and the second shaping part, the second shaping part and the lifting component release the battery, and the shaping mechanism is returned to the preliminary shaping station through the transportation assembly; place the second battery after gluing on the preliminary shaping station, and repeat the above steps until all the batteries are stacked.

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