Cylindrical battery module stacking tool

Abstract

The utility model discloses a cylindrical battery module stacking tool which comprises a left tool plate and a right tool plate which are used for pressing a plurality of cylindrical batteries on two sides of a liquid cooling plate, the left tool plate and the right tool plate have the same structure and are respectively formed by detachably splicing a head end plate, a plurality of middle plates and a tail end plate, the head end plate, the middle plates and the tail end plate are each provided with at least one cylindrical battery limiting groove, the number of the cylindrical battery limiting grooves in the multiple middle plates is the same or different, and when the left tool plate and the right tool plate are in press fit, the head end plate of the left tool plate corresponds to the tail end plate of the right tool plate. The tool has the advantages that the left tool plate and the right tool plate are divided into the head end plate, the middle plates and the tail end plate in a modularized mode, the number of the middle plates and the number of the cylindrical battery limiting grooves in each plate can be selected according to needs, the number of single-row batteries can be expanded through expansion of the number of the middle plates, the tool compatibility is high, the tool development cost is low, and the production efficiency is high. The development period is short.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical battery module assembly technology, and specifically to a cylindrical battery module stacking fixture. Background Technology

[0002] Cylindrical batteries are increasingly regarded as a mainstream technology due to their high degree of standardization, mature manufacturing process, high yield rate, low cost, and suitability for large-scale continuous production. In practical applications, to meet the requirements of high capacity and high output voltage, cylindrical batteries are often used in the form of battery modules. Currently, cylindrical battery modules typically arrange multiple rows of cylindrical batteries side by side, with adjacent rows staggered. Furthermore, to prevent heat accumulation during charging and discharging, liquid cooling plates are usually sandwiched between adjacent rows of cylindrical batteries. Traditional cylindrical battery module assembly methods typically involve directly assembling multiple separate cylindrical batteries and liquid cooling plates within a casing, resulting in low assembly efficiency and difficulty in controlling assembly precision.

[0003] With the research on cylindrical battery module assembly technology, assembly tooling has emerged in existing technologies. For example, Chinese utility model patent CN220628075U discloses a large cylindrical battery module assembly assembly, which uses a tooling plate, a left pressure plate, and a right pressure plate to press two adjacent rows of cylindrical batteries onto both sides of a water-cooling belt to form a battery module, thereby improving assembly efficiency and accuracy. However, this assembly tooling is only suitable for a single row of battery modules with a specified number or less, and cannot expand the number of cylindrical batteries in a single row. The tooling has poor compatibility, and when the tooling cannot meet the stacking of more than the specified number of battery modules in a single row, the tooling needs to be redeveloped, which has a long development cycle and high development cost. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a cylindrical battery module stacking fixture. The left and right fixture plates are modularly divided into a first end plate, a middle plate and a tail end plate. The number of middle plates and the number of cylindrical battery limiting slots on each plate can be selected as needed. The number of single-row batteries can be expanded by expanding the number of middle plates. The fixture has strong compatibility, low development cost and short development cycle.

[0005] The purpose of this utility model is achieved through the following technical measures: a cylindrical battery module stacking fixture, including a left fixture plate and a right fixture plate for pressing multiple cylindrical batteries onto both sides of a liquid cooling plate. The left fixture plate and the right fixture plate have the same structure, both being detachably assembled from a head plate, multiple intermediate plates and a tail plate. Each of the head plate, intermediate plates and tail plate is provided with at least one cylindrical battery limiting groove. The number of cylindrical battery limiting grooves on the multiple intermediate plates may be the same or different. When the left fixture plate and the right fixture plate are pressed together, the head plate of the left fixture plate corresponds to the tail plate of the right fixture plate.

[0006] In some embodiments, the connection end between the first end plate and the middle plate, both ends of the middle plate, and the connection end between the tail end plate and the middle plate are all provided with connecting plates, and adjacent connecting plates are fastened by bolts and nuts.

[0007] In some embodiments, the intermediate plate is provided with a guide post at one end and a guide sleeve at the other end, the connection end between the first end plate and the intermediate plate is provided with a guide post / guide sleeve, and the connection end between the tail end plate and the intermediate plate is provided with a guide sleeve / guide post.

[0008] In some embodiments, the side of the first end plate away from the end connected to the middle plate and the side of the tail end plate away from the end connected to the middle plate are provided with liquid cooling plate end limiting grooves. When the left tooling plate and the right tooling plate are pressed together, the liquid cooling plate end limiting grooves on the first end plate and the tail end plate together form a liquid cooling plate end limiting cavity.

[0009] In some embodiments, the liquid cooling plate end fixing block is further included. The liquid cooling plate end fixing block is provided with a liquid cooling plate limiting groove. When the left tooling plate and the right tooling plate are pressed together, the minimum distance between the left tooling plate and the right tooling plate matches the width of the liquid cooling plate end fixing block.

[0010] In some embodiments, the end of the first end plate away from the end where it is connected to the middle plate is provided with a handle, and the end of the tail end plate away from the end where it is connected to the middle plate is provided with a handle.

[0011] In some embodiments, the end of the first end plate away from its connection with the middle plate and the end of the tail end plate away from its connection with the middle plate are both provided with through holes. When the left tooling plate and the right tooling plate are pressed together, the through holes are used in conjunction with the lead screw and the nut.

[0012] In some embodiments, the first end plate, the middle plate and the last end plate each include a side plate, and a bottom plate and a top plate are respectively provided at both ends of the side plate, and the two ends of the cylindrical battery are respectively limited by the bottom plate and the top plate.

[0013] In some embodiments, when the left tooling plate and the right tooling plate are pressed together, the bottom plates of the left tooling plate and the right tooling plate are in contact with each other.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model divides the left and right tooling plates into a first end plate, a middle plate, and a last end plate. The number of middle plates and the number of cylindrical battery limiting grooves on each plate can be selected as needed. Expanding the number of middle plates allows for an expansion of the number of single-row batteries, resulting in strong tooling compatibility. Modularizing the tooling plates reduces tooling development costs and shortens the development cycle. When splicing the left and right tooling plates, guide posts can be inserted into adjacent guide sleeves. The cooperation between the guide posts and guide sleeves improves the fitting accuracy, ensuring the overall linearity of the left and right tooling plates, thereby improving the linearity of the single-row cylindrical batteries. Multiple limiting methods at both ends of the liquid cooling plate are achieved through the liquid cooling plate end limiting grooves and liquid cooling plate end fixing blocks, which can be selected by those skilled in the art according to actual needs.

[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0017] Figure 2 This is a structural schematic diagram of the head end plate.

[0018] Figure 3 This is a structural diagram of the intermediate plate.

[0019] Figure 4 This is a structural schematic diagram of the tail end plate.

[0020] Figure 5 This is a schematic diagram of the structure of the end fixing block of the liquid cooling plate.

[0021] Figure 6 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0022] Among them, 1. Head end plate, 2. Middle plate, 3. Tail end plate, 4. Connecting plate, 5. Liquid cooling plate end fixing block, 6. Handle, 7. Long screw, 8. Liquid cooling plate end limiting groove, 9. Side plate, 10. Top plate, 11. Bottom plate, 12. Guide sleeve, 13. Through hole, 14. Guide post, 15. Liquid cooling plate limiting groove. Detailed Implementation

[0023] like Figures 1 to 6As shown, a cylindrical battery module stacking fixture includes a left fixture plate and a right fixture plate for pressing multiple cylindrical batteries onto both sides of a liquid cooling plate. The left and right fixture plates have the same structure, each consisting of a head plate 1, multiple intermediate plates 2, and a tail plate 3, which are detachably assembled. Each of the head plate 1, intermediate plates 2, and tail plate 3 has at least one cylindrical battery positioning groove for accommodating the cylindrical battery. The number of cylindrical battery positioning grooves on the multiple intermediate plates 2 may be the same or different. When the left fixture plate and right fixture plate are pressed together, the head plate 1 of the left fixture plate corresponds to the tail plate 3 of the right fixture plate. This invention divides the left and right fixture plates into a head plate 1, intermediate plates 2, and tail plate 3, allowing for the selection of the number of intermediate plates 2 and the number of cylindrical battery positioning grooves on each plate. Expanding the number of intermediate plates 2 allows for the expansion of the number of batteries in a single row, resulting in strong fixture compatibility. By modularizing the tooling panel, the development cost of tooling can be reduced and the development cycle can be shortened.

[0024] During battery module assembly, firstly, select the first end plate 1, middle plate 2, and last end plate 3 according to the number of cells in a single row of the battery module, and assemble them into the left and right tooling plates. Then, insert the cylindrical cells into the cylindrical cell positioning slots. Finally, attach the liquid cooling plate with adhesive on both sides to the cylindrical cells on the left tooling plate, and press the right tooling plate onto the other side of the liquid cooling plate. During pressing, align the last end plate 3 of the right tooling plate with the first end plate 1 of the left tooling plate, and the first end plate 1 of the right tooling plate with the last end plate 3 of the left tooling plate. Press the left and right tooling plates tightly, and after the battery module has been held in place and cured, remove the left and right tooling plates to obtain the battery module. The battery module is then assembled using the battery module method.

[0025] In some embodiments, connecting plates 4 are provided at the connection ends of the first end plate 1 and the middle plate 2, at both ends of the middle plate 2, and at the connection ends of the tail end plate 3 and the middle plate 2. Adjacent connecting plates 4 are fastened with bolts and nuts. Specifically, when splicing the first end plate 1, the middle plate 2, and the tail end plate 3, the first end plate 1, multiple middle plates 2, and the tail end plate 3 are arranged linearly, and adjacent connecting plates 4 are locked with bolts and nuts to achieve the assembly of the left tooling plate and the right tooling plate.

[0026] It should be noted that this utility model does not specifically limit the detachable splicing methods between the first end plate 1 and the middle plate 2, between the middle plates 2 and 2, or between the middle plate 2 and the tail end plate 3. The detachable connection can be achieved through the aforementioned bolt and nut connection. Other methods known to those skilled in the art that can achieve detachable connections can also achieve the detachable connection purpose of this utility model. For example, such as... Figure 6 As shown, a snap-fit ​​and pin-locking connection method is adopted, that is, snap-fit / pins are provided on the first end plate 1 and the last end plate 3, and snap-fit ​​and pins are provided at both ends of the middle plate 2 respectively.

[0027] In some embodiments, the intermediate plate 2 has a guide post 14 at one end and a guide sleeve 12 at the other end. The connection end between the first end plate 1 and the intermediate plate 2 is provided with a guide post 14 / guide sleeve 12, and the connection end between the tail end plate 3 and the intermediate plate 2 is provided with a guide sleeve 12 / guide post 14. When splicing the left and right tooling plates, the guide post 14 can be inserted into the adjacent guide sleeve 12. Through the cooperation of the guide post 14 and the guide sleeve 12, the fitting accuracy is improved, ensuring the overall linearity of the left and right tooling plates, thereby improving the linearity of the single-row cylindrical battery.

[0028] In some embodiments, the ends of the first end plate 1 and the tail end plate 3 away from their connection with the middle plate 2 are provided with liquid-cooled plate end limiting grooves 8. When the left tooling plate and the right tooling plate are pressed together, the liquid-cooled plate end limiting grooves 8 on the first end plate 1 and the tail end plate 3 together form a liquid-cooled plate end limiting cavity. During pressing, the two ends of the liquid-cooled plate can be limited by the liquid-cooled plate end limiting cavity.

[0029] In some embodiments, the system further includes a liquid cooling plate end fixing block 5, which has a liquid cooling plate limiting groove 15. The liquid cooling plate limiting groove 15 is used to limit the end of the liquid cooling plate. When the left tooling plate and the right tooling plate are pressed together, the minimum distance between the left tooling plate and the right tooling plate matches the width of the liquid cooling plate end fixing block 5. When the number of batteries in a single row is less than the number of cylindrical battery limiting grooves on the left and right tooling plates, one end of the liquid cooling plate can be limited by the liquid cooling plate end limiting cavity at one end of the left and right tooling plates, and the other end of the liquid cooling plate can be limited by the liquid cooling plate end fixing block 5. Specifically, during the pressing process, the cylindrical battery is inserted from the first cylindrical battery limiting groove of the first end plate 1 of the left tooling plate or the last cylindrical battery limiting groove of the last end plate 3 of the left tooling plate. The cylindrical battery is inserted into the right tooling plate in the opposite direction to the left tooling plate. The liquid cooling plate is then attached to the cylindrical battery on the left tooling plate. The right tooling plate and the left tooling plate are pressed together. During the pressing process, one end of the liquid cooling plate is limited in the liquid cooling plate end limiting cavity, and the other end is installed on the liquid cooling plate end fixing block 5. The liquid cooling plate is limited by the liquid cooling plate end limiting cavity and the liquid cooling plate end fixing block 5.

[0030] It should be noted that this utility model does not specifically limit the limiting method of the liquid cooling plate. Those skilled in the art can select the method based on the matching of the number of single-row batteries with the number of cylindrical battery limiting slots on the left / right tooling plates. When the number of single-row batteries is the same as the number of cylindrical battery limiting slots on the left / right tooling plates, the two ends of the liquid cooling plate can be limited by the liquid cooling plate end limiting cavities at both ends of the left and right tooling plates. When the number of single-row batteries is less than the number of cylindrical battery limiting slots on the left / right tooling plates, the two ends of the liquid cooling plate can be limited by the liquid cooling plate end limiting cavity and the liquid cooling plate end fixing block 5 together, or the two ends of the liquid cooling plate can be limited by the liquid cooling plate end fixing block 5 respectively.

[0031] In some embodiments, the end of the first end plate 1 away from its connection with the middle plate 2 is provided with a handle 6, and the end of the tail end plate 3 away from its connection with the middle plate 2 is also provided with a handle 6. The handle 6 facilitates the pressing of the left tooling plate and the right tooling plate.

[0032] In some embodiments, the end of the first end plate 1 away from its connection with the middle plate 2 and the end of the tail end plate 3 away from its connection with the middle plate 2 are both provided with through holes 13. When the left tooling plate and the right tooling plate are pressed together, the through holes 13 are used in conjunction with the long screw 7 and the nut. During pressing, the left tooling plate and the right tooling plate can be locked together by the long screw 7 and the nut, freeing up hands during static pressure holding and curing processes.

[0033] In some embodiments, the first end plate 1, the middle plate 2, and the last end plate 3 each include a side plate 9, and a bottom plate 11 and a top plate 10 are respectively provided at both ends of the side plate 9. The two ends of the cylindrical battery are respectively limited by the bottom plate 11 and the top plate 10. Specifically, the side plate 9 is provided with a cylindrical battery contour groove, and the side plate 9, the bottom plate 11, and the top plate 10 together form a cylindrical battery limiting groove. By limiting the side, top, and bottom surfaces of the cylindrical battery through the top plate 10, the bottom plate 11, and the side plate 9, the cylindrical battery is limited in multiple directions. This allows the left and right tools of this invention to be stacked either with the axis of the cylindrical battery perpendicular to the operating table / workbench or with the axis of the cylindrical battery parallel to the operating table / workbench, improving stacking convenience.

[0034] In some embodiments, when the left tooling plate and the right tooling plate are pressed together, the bottom plates 11 of the left tooling plate and the right tooling plate are in contact with each other. That is, when the left and right tooling plates are pressed together, the bottom plates 11 of the left tooling plate and the right tooling plate can be assembled together, so that the left and right tooling plates form an upper-open cavity.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A cylindrical battery module stacking fixture, comprising a left fixture plate and a right fixture plate for pressing multiple cylindrical batteries onto both sides of a liquid cooling plate, characterized in that: The left and right tooling plates have the same structure, both of which are detachably assembled from a first end plate, multiple intermediate plates, and a tail end plate. Each of the first end plate, intermediate plates, and tail end plate is provided with at least one cylindrical battery limiting groove. The number of cylindrical battery limiting grooves on the multiple intermediate plates may be the same or different. When the left tooling plate and the right tooling plate are pressed together, the first end plate of the left tooling plate corresponds to the tail end plate of the right tooling plate.

2. The cylindrical battery module stacking fixture according to claim 1, characterized in that: The connection end between the first end plate and the middle plate, both ends of the middle plate, and the connection end between the tail end plate and the middle plate are all provided with connecting plates, and adjacent connecting plates are fastened by bolts and nuts.

3. The cylindrical battery module stacking fixture according to claim 1 or 2, characterized in that: The middle plate is provided with a guide post at one end and a guide sleeve at the other end. The connection end between the first end plate and the middle plate is provided with a guide post / guide sleeve, and the connection end between the tail end plate and the middle plate is provided with a guide sleeve / guide post.

4. The cylindrical battery module stacking fixture according to claim 1, characterized in that: The first end plate is provided with a liquid cooling plate end limiting groove on the side away from the end where it is connected to the middle plate, and the tail end plate is provided with a liquid cooling plate end limiting groove on the side away from the end where it is connected to the middle plate. When the left tooling plate and the right tooling plate are pressed together, the liquid cooling plate end limiting grooves on the first end plate and the tail end plate together form a liquid cooling plate end limiting cavity.

5. The cylindrical battery module stacking fixture according to claim 1 or 4, characterized in that: It also includes a liquid cooling plate end fixing block, which is provided with a liquid cooling plate limiting groove. When the left tooling plate and the right tooling plate are pressed together, the minimum distance between the left tooling plate and the right tooling plate matches the width of the liquid cooling plate end fixing block.

6. The cylindrical battery module stacking fixture according to claim 1, characterized in that: The first end plate has a handle at the end away from its connection with the middle plate, and the tail end plate has a handle at the end away from its connection with the middle plate.

7. The cylindrical battery module stacking fixture according to claim 1, characterized in that: The end of the first end plate away from its connection with the middle plate and the end of the tail end plate away from its connection with the middle plate are both provided with through holes. When the left tooling plate and the right tooling plate are pressed together, the through holes are used in conjunction with the long lead screw and the nut.

8. The cylindrical battery module stacking fixture according to claim 1, characterized in that: The first end plate, the middle plate and the last end plate all include side plates, and a bottom plate and a top plate are respectively provided at both ends of the side plates. The two ends of the cylindrical battery are respectively limited by the bottom plate and the top plate.

9. The cylindrical battery module stacking fixture according to claim 8, characterized in that: When the left tooling plate and the right tooling plate are pressed together, the bottom plates of the left tooling plate and the right tooling plate come into contact with each other.

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