Stacking machine for immersed battery module
By combining linear guide rails and extrusion actuators, the problem of inaccurate size control in immersion battery modules of traditional equipment is solved, enabling stepless adjustment of module length and pressure monitoring, thus improving production stability and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TONGQI NEW ENERGY TECH CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional stacking equipment cannot meet the high-precision dimensional control requirements of submerged battery modules, resulting in unstable final module dimensions and failure to meet the assembly requirements of submerged structures.
By employing linear guide rails and a simplified extrusion actuator, combined with a pressure sensor, the module length can be infinitely adjusted and the extrusion pressure can be monitored in real time, ensuring the accuracy and safety of the battery cell module in the length direction.
It significantly improves the consistency and security of module stacking, reduces equipment complexity and maintenance costs, adapts to the production needs of various battery cell modules, occupies little space, and is suitable for modern factories.
Smart Images
Figure CN224153388U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a stacking machine for immersion battery modules. Background Technology
[0002] In the field of battery module manufacturing, traditional liquid-cooled base plate modules typically employ pneumatic cylinders for pressure regulation during assembly, squeezing the individual module units together to form a single structure. The module is then secured externally with steel strips. To alleviate stress caused by dimensional tolerances between the cells within the module, traditional module structures commonly fill the spaces between the cells with foam material. This structural design allows for a relatively large dimensional tolerance range in the module's length direction, thus enabling a degree of flexibility in precision control for the stacking equipment.
[0003] However, with the increasing prevalence of immersion cooling technology, higher demands are being placed on the structural design of battery modules. Unlike traditional liquid-cooled modules, immersion modules typically eliminate the foam filling structure between cells, instead reserving liquid cooling channels between cells to facilitate the circulation of the cooling medium. This structural characteristic necessitates maintaining a highly consistent spacing between cells, making the overall dimensional accuracy of the module along its length even more critical. Because traditional stacking equipment struggles to meet these high-precision assembly requirements, it is difficult to effectively control the dimensions of each stacked layer during the stacking process, resulting in unstable final module dimensions that fail to meet the assembly requirements of immersion structures.
[0004] Therefore, when faced with the high dimensional consistency requirements of immersion modules, existing technologies have revealed the problem of insufficient control precision in traditional stacking processes. There is an urgent need for a new type of stacking equipment that can improve the control precision of stacking dimensions and adapt to the structure of immersion modules in order to meet the manufacturing process requirements of this type of product. Utility model content:
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a stacking machine for immersion battery modules.
[0006] A stacking machine for immersion battery modules includes a linear guide rail and a first actuator. The guide rail is used to place the battery cell modules. The first actuator includes a backrest and a pressing mechanism. The backrest and the pressing mechanism are located at opposite ends of the linear guide rail. The backrest is used to hold the battery cell modules against the guide rail, and the pressing mechanism is used to apply pressure to the battery cell modules along the length of the guide rail.
[0007] Furthermore, the linear guide rail includes an L-shaped left guide rail and a right guide rail, which are arranged in parallel mirror images.
[0008] Furthermore, the extrusion mechanism includes a push plate and a screw mechanism. The screw mechanism includes a screw and a mounting base. The screw is movably inserted into the mounting base, and the push plate is connected to one end of the screw.
[0009] Furthermore, a handle is provided at the other end of the screw.
[0010] Furthermore, the mounting base is also provided with a guiding mechanism, which includes at least two guide posts. The guide posts slide through the mounting base, and one end of the guide post is connected to the push plate.
[0011] Furthermore, there are two guide posts, located on opposite sides of the screw, and the angle formed by the line connecting the two guide posts and the center of the screw is 180°.
[0012] Furthermore, a flange seat is provided at one end of the screw, and the flange seat is connected to the push plate.
[0013] Furthermore, the battery cell module includes several battery cells, clamping plates, two bottom brackets, two end plates, and a fixing plate. The battery cells are arranged sequentially on the bottom brackets that are arranged in parallel and mirror images. The bottom brackets have an L-shaped structure. The end plates are located at both ends of several battery cells. Clamping plates are provided between adjacent battery cells and between battery cells and end plates. The side of the end plates and the side of the bottom brackets are provided with corresponding positioning holes. The fixing plates are provided with connecting sections bent in the same direction at both ends. The connecting sections are used to fix and connect with the end plates.
[0014] Furthermore, on the push plate, a pressure plate is provided on the other side opposite to the connecting screw. The surface of the pressure plate is provided with a push block and at least two positioning posts, and the surface of the end plate is provided with positioning holes corresponding to the positioning posts.
[0015] Furthermore, the left or right guide rail is connected to a lateral translation mechanism, which controls the left or right guide rail to move along the width direction of the linear guide rail. The lateral translation mechanism includes a cylinder, a connecting plate, a slider, and a slide rail. The connecting plate is fixedly connected to the telescopic joint of the cylinder and the left or right guide rail. The slider is fixedly connected to the left or right guide rail and slides with the slide rail.
[0016] Beneficial effects: Compared with the prior art, the present invention has the following advantages:
[0017] The stacking machine of this invention enables stepless adjustment of module length, ensuring consistency: Through an adjustable structure, the stacking length can be steplessly adjusted according to different cell quantities or size requirements. Compared to traditional methods using fixed blocks or spacers, this solution significantly improves the consistency of module stacking, ensuring a high degree of uniformity in the length direction of each module. It is particularly suitable for submerged battery modules with stringent dimensional accuracy requirements.
[0018] Equipped with stacking pressure detection capability to improve product stability and safety: This stacking machine can integrate a pressure sensing device to monitor the pressure applied to the battery cell module by the extrusion mechanism in real time, ensuring that the pressure application process is within a reasonable range, avoiding deformation of the battery cell structure or abnormal performance due to excessive pressure, and effectively improving the safety of the stacking process and the reliability of the product.
[0019] With its simple structure, stable operation, and cost advantage, this invention uses a linear guide rail combined with a simplified extrusion actuator, which reduces the number of moving parts and the complexity of the control system. The overall structure is more compact, the operation is more reliable, the maintenance is easier, and the manufacturing and maintenance costs are significantly reduced, resulting in good economic efficiency.
[0020] Flexible and adaptable to various stacking requirements with minimal space occupation: This utility model features a compact design that allows for flexible adjustment of stacking length and stacking cycle according to the specific number of battery cell modules, adapting to the production needs of multiple specifications and models of battery cell modules, and improving production line compatibility and flexibility. Simultaneously, the equipment is small in size and occupies little space, making it suitable for various production line layout scenarios, especially for modern factories with limited space. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a stacker machine;
[0022] Figure 2 This is a bottom view of the stacker machine;
[0023] Figure 3 This is a schematic diagram of the battery cell module;
[0024] In the diagram, 1. Handle, 2. Mounting base, 3. Guide column, 4. Flange seat, 5. Push plate, 6. Pressure plate, 7. Battery cell module, 8. Backrest, 9. Cylinder, 10. Connecting plate, 11. Left guide rail, 12. Right guide rail, 13. Slide rail, 14. Slider, 15. Bottom bracket, 16. End plate, 17. Fixing plate, 18. Battery cell. Detailed Implementation
[0025] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.
[0026] A stacking machine for immersion battery modules includes a linear guide rail and a first actuator. The guide rail is used to place the battery cell module 7. The first actuator includes a backrest 8 and a pressing mechanism. The backrest 8 and the pressing mechanism are located at both ends of the linear guide rail. The backrest 8 is used to hold the battery cell module 7 against the guide rail. The pressing mechanism is used to apply pressure to the battery cell module 7 along the length of the guide rail. The backrest 8 is also provided with a pressure plate 6, which cooperates with the end plate 16.
[0027] The stacking machine carries the battery cell module 7 via a guide rail, with the backrest 8 serving as a fixed end to maintain the initial positioning of the battery cell module 7. The pressing mechanism, as a moving end, slides along the length of the guide rail structure to achieve the pressing and positioning operation of the battery cell module 7.
[0028] In one possible implementation, the linear guide rail includes an L-shaped left guide rail 11 and a right guide rail 12, with the left guide rail 11 and the right guide rail 12 arranged in parallel mirror images.
[0029] By using L-shaped guide rails arranged in a mirror parallel configuration, a stable support structure can be formed, effectively limiting the lateral movement of the cell module 7 and improving the overall stacking accuracy.
[0030] In one possible implementation, the extrusion mechanism includes a push plate 5 and a screw mechanism. The screw mechanism includes a screw and a mounting base 2. The screw is movably inserted into the mounting base 2, and the push plate 5 is connected to one end of the screw.
[0031] The screw mechanism drives the pusher plate 5 to achieve linear propulsion through rotation. The pusher plate 5 is subjected to force evenly and transmits pressure to the cell module 7, improving the consistency of pressing.
[0032] In one possible implementation, a handle 1 is provided at the other end of the screw. The handle 1 allows the screw to be rotated manually, thereby controlling the position of the push plate 5, making operation simple and adjustment flexible.
[0033] In one possible implementation, the mounting base 2 is further provided with a guide mechanism, which includes at least two guide posts 3. The guide posts 3 are slidably inserted into the mounting base 2, and one end of the guide post 3 is connected to the push plate 5.
[0034] The guide post 3 is used to limit the movement direction of the push plate 5 to avoid deviation or tilting, thereby ensuring that the direction of the extrusion force is consistent with the guide rail and improving the positioning accuracy.
[0035] In one possible implementation, there are two guide posts 3, located on opposite sides of the screw, and the angle formed by the line connecting the two guide posts 3 and the center of the screw is 180°.
[0036] Two guide posts 3 are symmetrically distributed on both sides of the screw, forming a stable three-point guide structure, which improves the straightness and rigidity of the push plate 5 movement.
[0037] In one possible implementation, one end of the screw is provided with a flange seat 4, which is connected to the push plate 5.
[0038] The flange seat 4 serves as a connecting medium, which can enhance the connection strength between the screw and the push plate 5, improve the uniformity of force distribution, and facilitate maintenance and replacement. The push plate 5, flange seat 4, and pressure plate 6 are fixedly connected by bolts passing through them in sequence.
[0039] In one possible implementation, the battery cell module 7 includes a plurality of battery cells 18, a clamping plate, two bottom brackets 15, two end plates 16, and a fixing plate 17. The battery cells 18 are arranged sequentially on the bottom brackets 15 which are arranged in parallel and mirror images. The bottom brackets 15 have an L-shaped structure. The end plates 16 are located at both ends of the plurality of battery cells 18. Clamping plates are provided between adjacent battery cells 18 and between battery cells 18 and end plates 16. The side of the end plates 16 and the side of the bottom brackets 15 are provided with corresponding positioning holes. The fixing plate 17 has connecting sections bent in the same direction at both ends. The connecting sections are used to fix and connect with the end plates 16.
[0040] In one possible implementation, a pressure plate 6 is provided on the other side of the push plate 5 opposite to the connecting screw. The surface of the pressure plate 6 is provided with a push block and at least two positioning posts, and the surface of the end plate 16 is provided with positioning holes corresponding to the positioning posts.
[0041] The structure of pressure plate 6 increases the contact area for pressing, the push block is used to concentrate the force, and the positioning post and positioning hole cooperate to ensure that the battery cell module 7 and the push plate 5 are precisely aligned to avoid pressing deviation.
[0042] In one possible implementation, the left guide rail 11 or the right guide rail 12 is connected to a lateral translation mechanism. The lateral translation mechanism is used to control the left guide rail 11 or the right guide rail 12 to move along the width direction of the linear guide rail. The lateral translation mechanism includes a cylinder 9, a connecting plate 10, a slider 14, and a slide rail 13. The connecting plate 10 is fixedly connected to the telescopic joint of the cylinder 9 and the left guide rail 11 or the right guide rail 12. The slider 14 is fixedly connected to the left guide rail 11 or the right guide rail 12, and the slider 14 is slidably engaged with the slide rail 13.
[0043] In one possible implementation, the first actuator is also equipped with a pressure sensor to prevent the stacking pressure from exceeding the limit range.
[0044] In one possible implementation, the stacker's overall structure is mounted on a wheeled platform, the platform's support surface having clearance holes or notches for various structures, including lateral translation mechanisms.
[0045] Instructions for use: During assembly, first place the two L-shaped bottom brackets 15 on the left guide rail 11 and the right guide rail 12 respectively to form a basic support platform for supporting the battery cell module 7. Then, place the battery cell 18, end plate 16 and clamping plate into the bottom bracket 15 in sequence. The end plate 16 is set at both ends of the battery cell 18, and the clamping plates are set between adjacent battery cells 18 and between the battery cell 18 and the end plate 16 to ensure the consistency of the gap between each battery cell 18.
[0046] After the initial stacking is completed, the lateral translation mechanism is activated, driving the left guide rail 11 and the right guide rail 12 to move closer together along the width direction of the straight guide rail, thereby causing the battery cell 18, clamping plate and end plate 16 to be closely aligned and aligned along the length direction of the guide rail. Next, the operator manually rotates the handle 1 at the end of the screw, driving the screw to move the push plate 5 and pressure plate 6 toward one end of the battery cell module 7, so that the pressure plate 6 applies axial pressure to one end plate 16, while the other end plate 16 abuts against the fixed backrest 8.
[0047] Under the pressure of compression, the battery cell 18 undergoes elastic compression along its length, and the overall length of the battery cell module 7 shortens accordingly. During this process, the clamping plate absorbs the deformation force while maintaining the spacing between the battery cells 18, ensuring structural balance during compression. When the positioning holes on the side of the end plate 16 are precisely aligned with the positioning holes on the bottom bracket 15, it indicates that the battery cell module 7 has been compressed to the predetermined length. At this point, bolts are inserted into the corresponding positioning holes of the end plate 16 and the bottom bracket 15 for locking and fixing.
[0048] Finally, the fixing plate 17 is placed on both sides of the cell module 7, and the connecting sections at both ends are attached to the surface of the corresponding end plate 16. The connecting sections are fixedly connected to the end plate 16 by bolts, thereby completing the assembly of a battery module.
[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stacker for a submerged battery module, the stacker comprising: The device includes a linear guide rail and a first actuator. The guide rail is used to place the battery cell module. The first actuator includes a backrest and a pressing mechanism. The backrest and the pressing mechanism are located at both ends of the linear guide rail. The backrest is used to hold the battery cell module against the guide rail, and the pressing mechanism is used to apply pressure to the battery cell module along the length of the guide rail.
2. The stacker of claim 1, wherein, The linear guide rail includes an L-shaped left guide rail and a right guide rail, which are arranged in parallel mirror images.
3. The stacker of claim 2, wherein, The extrusion mechanism includes a push plate and a screw mechanism. The screw mechanism includes a screw and a mounting base. The screw is movably inserted into the mounting base, and the push plate is connected to one end of the screw.
4. The stacker of claim 3, wherein, A handle is provided at the other end of the screw.
5. The stacker of claim 4, wherein, The mounting base is also provided with a guide mechanism, which includes at least two guide posts. The guide posts slide through the mounting base, and one end of the guide posts is connected to the push plate.
6. The stacker of claim 5, wherein, There are two guide posts, located on opposite sides of the screw, and the angle formed by the line connecting the two guide posts and the center of the screw is 180°.
7. The stacker of claim 6, wherein, One end of the screw is equipped with a flange seat, which is connected to the push plate.
8. The stacker of claim 7, wherein, The battery cell module includes several battery cells, a clamping plate, two bottom brackets, two end plates, and a fixing plate. The battery cells are arranged sequentially on the bottom brackets, which are arranged in parallel and mirror images. The bottom brackets have an L-shaped structure. The end plates are located at both ends of the battery cells. Clamping plates are provided between adjacent battery cells and between the battery cells and the end plates. The side of the end plates and the side of the bottom brackets are provided with corresponding positioning holes. The fixing plates are provided with connecting sections bent in the same direction at both ends. The connecting sections are used to fix and connect with the end plates.
9. The stacker of claim 8, wherein, On the push plate, a pressure plate is provided on the other side opposite to the connecting screw. The surface of the pressure plate is provided with a push block and at least two positioning posts, and the surface of the end plate is provided with positioning holes corresponding to the positioning posts.
10. The stacker of claim 2, wherein, The left or right guide rail is connected to a lateral translation mechanism, which controls the left or right guide rail to move along the width of the linear guide rail. The lateral translation mechanism includes a cylinder, a connecting plate, a slider, and a slide rail. The connecting plate is fixedly connected to the telescopic joint of the cylinder and the left or right guide rail. The slider is fixedly connected to the left or right guide rail and slides with the slide rail.