A profiling tool for module in-box gluing

Abstract

The utility model discloses a kind of profiling tool of module into box gluing, including flat plate and detachably installed in the beam structure and side beam structure of four side edges of flat plate top, the flat plate, beam structure and side beam structure form the gluing cavity of module into box, the beam structure and side beam structure detachably connect;Positioning hole for positioning into box module position is opened in the top of the beam.This application profiling tool simulates actual module into box scene, beam hole is used for positioning module into box position, structure selection is flexible, in actual use process, by bolt tightening and loosening, the glue verification of module bottom is realized, it can be repeatedly used multiple times, the bottom of profiling tool still does not occur deformation, ensure better flatness;With the characteristics of fast and simple, convenient and fast, low price, compatible with multiple size types square shell electric core simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of battery module technology, specifically to a contouring tooling for applying adhesive to modules in a box. Background Technology

[0002] To keep pace with industry development and seize market share in the new energy sector, the emergence of CTP (Cell To Pack) technology has driven the development of the power battery industry. CTP technology directly integrates battery cells into a battery pack, eliminating the need for small modules and even creating a module-less form, thereby improving overall energy density and significantly increasing driving range. Compared to CTP 1.0, CTP 2.0 battery technology further upgrades volumetric efficiency by 25%, while simultaneously increasing production efficiency by 45%, effectively reducing manufacturing costs while increasing overall energy density.

[0003] Specifically, the module pack adopts CTP2.0 technology, with dual-row modules extruded into the battery pack and a whole-pack-level welding design. It is worth noting that the adhesive application verification between the bottom of the module and the lower casing (i.e., the lower casing of the battery pack) is crucial. Due to the inherent rebound characteristic of the new CTP2.0 module under the force of assembly, issues such as air bubbles, incorrect adhesive application paths, insufficient weight, and insufficient adhesive application may occur during actual production, leading to insufficient adhesive application area and failing to meet technical requirements. This can significantly impact product quality and production efficiency. Therefore, multiple adhesive application verifications based on actual products are necessary to solidify the process parameters.

[0004] Traditional film coating verification using the suction cups of lifting fixtures is often insufficient to remove the module. Therefore, only 2-3 fillers between cells can be applied for adhesive verification, which does not reflect the actual adhesive bonding condition and cannot verify the actual adhesive state. Therefore, it is necessary to disassemble and apply adhesive to the lower casing for confirmation. However, producing the lower casing is generally time-consuming and extremely costly. Furthermore, after the first adhesive coating verification, the casing's flatness will be severely deformed, requiring destructive disassembly to check the bonding condition, making secondary adhesive bonding verification impossible.

[0005] Generally, adhesive bonding verification requires 3 to 4 times. Directly using the lower shell for adhesive bonding verification results in high costs and extreme waste. Utility Model Content

[0006] The technical problem to be solved by this utility model is: how to reduce the cost of adhesive application verification.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A contouring tooling for module loading and gluing includes a flat plate and a crossbeam structure and a side beam structure that are detachably mounted on the four sides of the top of the flat plate. The flat plate, the crossbeam structure and the side beam structure form a gluing cavity for module loading. The crossbeam structure and the side beam structure are detachably connected.

[0009] A positioning hole is provided above the crossbeam for positioning the box module.

[0010] This application uses a contouring fixture to simulate the actual module insertion scenario. The crossbeam has openings to position the module inside the box. The structure is flexible and can be used in actual use. The bottom of the module can be pressed and verified by tightening and loosening the detachable installation method. It can be reused multiple times, and the bottom of the contouring fixture does not deform, ensuring good flatness. It is fast, simple, convenient, and inexpensive, and is compatible with various sizes of square-shell cells.

[0011] As a further embodiment of this utility model: the four sides of the plate are detachably connected to the crossbeam structure and the side beam structure by a second bolt group.

[0012] As a further embodiment of this utility model: the beam structure includes a first beam and a second beam arranged symmetrically, and the width of the first beam and the second beam is greater than the width of the module.

[0013] As a further embodiment of this utility model: both sides of the first crossbeam and the second crossbeam are detachably connected to the side beam structure by the first bolt group.

[0014] As a further embodiment of this utility model: grooves are provided on the outer side walls of the first and second crossbeams facing away from the adhesive coating cavity.

[0015] As a further embodiment of this utility model: the first and second crossbeams are detachably connected to the outer walls of the adhesive coating cavity facing away from the first crossbeam and the second crossbeam.

[0016] As a further embodiment of this utility model: a first positioning hole is provided at the top of the first crossbeam, and a second positioning hole is provided at the top of the second crossbeam, wherein the first positioning hole is a round hole and the second positioning hole is an oblong hole.

[0017] As a further embodiment of this utility model, the length direction of the waist-shaped hole is consistent with the arrangement direction of the two crossbeams.

[0018] As a further embodiment of this utility model: the flat plate is made of bakelite, and the crossbeam structure and side beam structure are made of 6061 aluminum alloy.

[0019] As a further embodiment of this utility model: the side beam structure includes a first side beam and a second side beam arranged symmetrically, and the two sides of the first side beam and the second side beam are detachably connected to the crossbeam structure.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] Compared with conventional tooling, the contouring tooling of this application simulates the actual module insertion scenario. The crossbeam opening is used to position the module in the box. The structure is flexible. In actual use, the bottom of the module is pressed and verified by tightening and loosening the bolts. It can be reused multiple times. The bottom of the contouring tooling does not deform, ensuring good flatness. It is inexpensive, convenient and quick, and is compatible with various sizes of square-shell cells.

[0022] This application targets CTP2.0 and adopts a method of positioning the lower shell contour tooling with an opening in the box (one side round hole, one side waist hole). The contour tooling plate is made of bakelite, which can ensure that the tooling will not deform during use and can be reused.

[0023] The crossbeam of this application has grooves and is made of aluminum alloy, which reduces the weight of the tooling while ensuring mechanical strength;

[0024] This application uses screws to fix the crossbeams and side beams, which facilitates disassembly and reduces safety risks. It is cost-effective and highly operable. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the contouring tooling for applying adhesive to the module in the box according to an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the bottom structure of the contour tooling for applying adhesive to the module in the box according to an embodiment of this utility model;

[0027] Figure 3 This is a front view of the contouring tooling for applying adhesive to the module in the box according to an embodiment of this utility model;

[0028] Figure 4 This is a side view of the contour tooling for applying adhesive to the module in the box according to an embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the module and the contouring tooling in an embodiment of this utility model;

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Flat plate; 2. First side beam; 3. Second side beam; 4. First crossbeam; 5. Second crossbeam; 6. Handle; 7. First bolt group; 8. First positioning hole; 9. Second positioning hole; 10. Second bolt group. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] Reference Figure 1 and Figure 2 A contouring tooling for module insertion and gluing includes a flat plate 1, a first side beam 2, a second side beam 3, a first crossbeam 4, a second crossbeam 5, a handle 6, a first bolt group 7, a first positioning hole 8, a second positioning hole 9, and a second bolt group 10; wherein the above structure can form a frame structure with a top opening and a detachable bottom flat plate 1 and four surrounding beams, and the frame structure forms a gluing cavity for gluing the battery module in the middle.

[0034] For ease of understanding and description, Figure 1 The direction of the flat plate is the bottom direction, the direction of the opening is the top direction, and the other directions are deduced from this. It should be understood that this orientation setting is only for the convenience of description and understanding and should not be construed as a limitation of this application.

[0035] Reference Figure 1 The plate 1 has a rectangular plate structure with smooth bottom and top. It is made of bakelite, which has high mechanical strength, good insulation, is lightweight, and ensures that it will not deform even after repeated use. Bakelite was chosen instead of stainless steel or steel plate to reduce the risk of insulation between the bottom of the battery cell and the plate. In reality, if the glue is not pressed out, there will be an insulation risk if the bottom of the battery cell comes into contact with the plate.

[0036] It should be noted that, in addition to bakelite, the flat plate 1 can also be made of ceramic composite materials, nanocellulose and carbon fiber, bakelite, wood-plastic composite and thermoplastic materials.

[0037] Reference Figure 2 The bottom four edges of the plate 1 are provided with a second bolt group 10. The second bolt group 10 includes several bolt holes, and bolts can be threaded through the corresponding bolt holes to connect with the first side beam 2, the second side beam 3, the first cross beam 4, and the second cross beam 5 provided on the top of the plate 1.

[0038] Reference Figure 1 and Figure 2The first side beam 2 and the second side beam 3 are located on the top of the plate 1 and are arranged symmetrically. The first side beam 2 and the second side beam 3 can be made of aluminum-AL6061 aluminum alloy, which is easy to cut, not easily deformed after processing, and has corrosion resistance. Several threaded connection holes are opened at the bottom of the first side beam 2 and the second side beam 3. These threaded connection holes correspond to the bolt holes of the second bolt group 10 at the bottom of the plate 1. That is, bolts are used to pass through the corresponding bolt holes and threadedly connect to the first side beam 2 and the second side beam 3 to realize the connection and fixation of the plate 1 with the first side beam 2 and the second side beam 3.

[0039] It should be noted that, in addition to using aluminum-AL6061 aluminum alloy, the first side beam 2 and the second side beam 3 can also be made of ADC12 aluminum-silicon material.

[0040] Reference Figure 1 , Figure 3 and Figure 4 The first crossbeam 4 and the second crossbeam 5 are located on the top of the plate 1 and are arranged symmetrically. The first crossbeam 4 and the second crossbeam 5 can be made of aluminum-AL6061 aluminum alloy, which is easy to cut, not easily deformed after processing, and has corrosion resistance. Several threaded connection holes are opened at the bottom of the first crossbeam 4 and the second crossbeam 5. These threaded connection holes correspond to the bolt holes of the second bolt group 10 at the bottom of the plate 1. That is, bolts are used to pass through the corresponding bolt holes and threadedly connect to the first crossbeam 4 and the second crossbeam 5 to realize the connection and fixation of the plate 1 with the first crossbeam 4 and the second crossbeam 5.

[0041] The first crossbeam 4 and the second crossbeam 5 are each provided with a first bolt group 7. The first bolt group 7 includes screw holes and bolts. The screw holes are located on both sides of the first crossbeam 4 and the second crossbeam 5, and the bolts can pass through the screw holes to connect to the sides of the first side beam 2 and the second side beam 3. The crossbeams and side beams are fixed with screws instead of being welded, which not only facilitates disassembly but also reduces the risk of short circuits and battery pack fires caused by the overlap of modules and welds during the installation process of traditional welding assembly.

[0042] Reference Figure 1 Three grooves are opened on the side of the first crossbeam 4 and the second crossbeam 5 facing away from the cavity. The design of the grooves can reduce costs and lighten the weight of the conforming tooling, while meeting the mechanical strength requirements of the module extrusion into the box.

[0043] Reference Figure 1 The width of the first crossbeam 4 and the second crossbeam 5 is greater than the width of the module, that is, a certain gap is reserved on each side to reduce the risk of interference when the module is inserted into the box; the first crossbeam 4 and the second crossbeam 5 correspond to the large surface of the outermost cell of the module, and the first side beam 2 and the second side beam 3 correspond to the module thickness of the stacked cells.

[0044] The width of the first crossbeam 4 and the second crossbeam 5 in this application can be set to 358mm, which is compatible with the width of general CTP modules between 290 and 350mm for insertion into the box. If the module length changes, only the lengths of the first side beam 2 and the second side beam 3 need to be changed; the groove dimensions on the first crossbeam 4 and the second crossbeam 5 can be set to 92*54*10mm; it should be noted that this dimension is only one embodiment, and the specific dimension needs to be determined according to the actual requirements.

[0045] Reference Figure 1 The top of the first crossbeam 4 has a first positioning hole 8, which is a round hole. The top of the second crossbeam 5 has a second positioning hole 9, which is an oblong hole. The first positioning hole 8 and the second positioning hole 9 can limit the lifting fixture, which can ensure that the CTP2.0 module is accurately extruded into the box.

[0046] Reference Figure 1 The first crossbeam 4 and the second crossbeam 5, facing away from the cavity, are connected to handles 6 using bolts or pins. Handles 6 are made of SUS304 stainless steel, which has excellent corrosion resistance and facilitates handling. It should be noted that, in addition to SUS304 stainless steel, handles 6 can also be made of SUS302 stainless steel.

[0047] This application targets CTP2.0, employing a method of positioning the lower shell contouring fixture with pre-drilled holes (one side round hole, one side oblong hole) for the box insertion position. The contouring fixture plate 1 is made of bakelite, ensuring that the fixture does not deform during use and can be reused. The crossbeam has grooves and is made of aluminum alloy, reducing the weight of the fixture while ensuring mechanical strength. Screws are used to fix the crossbeam and side beams, facilitating disassembly and reducing safety risks. It is cost-effective and highly operable.

[0048] The specific operating principle of this application is as follows:

[0049] First, apply a film to the surface of the flat plate 2 of the contouring fixture, and then apply adhesive; when the module (not shown in the figure) is lifted using an external lifting fixture (not shown in the figure), apply a film to the bottom of the module.

[0050] The module's position in the box is then confirmed through the positioning holes on the first crossbeam 4 and the second crossbeam 5. Then, the external hoisting fixture clamps the module and inserts it into the cavity within the contouring fixture (e.g., Figure 1 As shown), the first positioning hole 8 and the second positioning hole 9 are positioned; after the module is placed in the box, the self-weight of the hoisting fixture is used to press the glue to ensure that the pressing force is balanced. After the pressing is completed, the bolts at the connection between the first crossbeam 4, the second crossbeam 5 and the first side beam 2 and the second side beam 3 are loosened and the module is taken out.

[0051] If the glue application verification fails to meet the technical requirements in one attempt, the above operation can be repeated. After the glue application is completed, the module area is checked by observing the glue diffusion on the plate 1. Therefore, the glue application verification of this application can obtain the size of the module and then check whether the module can be put into the box. Moreover, the purpose of the glue application verification is to verify whether the glue application amount, glue application trajectory, pressing force and pressing time meet the requirements of the pressing area and glue thickness.

[0052] Compared to conventional tooling, this contouring tooling simulates the actual module insertion scenario. The crossbeam openings position the module within the box, offering flexible structural options. In actual use, the bottom of the module is verified by tightening and loosening the bolts. Even after 10 reuses, the bottom of the contouring tooling remains undeformed, ensuring good flatness (≤1mm). It features speed, simplicity, convenience, and low cost, while also being compatible with various sizes of prismatic battery cells.

[0053] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A contouring tooling for module placement and gluing, characterized in that, It includes a flat plate and a crossbeam structure and a side beam structure that can be detachably installed on the four sides of the top of the flat plate. The flat plate, the crossbeam structure and the side beam structure form an adhesive cavity for the module to be inserted into the box. The crossbeam structure and the side beam structure are detachably connected. A positioning hole is provided above the crossbeam for positioning the box module.

2. The contouring fixture for module box gluing according to claim 1, characterized in that: The four sides of the plate are detachably connected to the crossbeam structure and the side beam structure via a second set of bolts.

3. The contouring fixture for module box gluing according to claim 1, characterized in that: The beam structure includes a first beam and a second beam arranged symmetrically, and the width of the first beam and the second beam is greater than the width of the module.

4. The contouring fixture for module box gluing according to claim 3, characterized in that: Both sides of the first and second crossbeams are detachably connected to the side beam structure via the first bolt group.

5. The contouring fixture for module box gluing according to claim 3, characterized in that: Grooves are provided on the outer side walls of the first and second crossbeams facing away from the adhesive coating cavity.

6. The contouring fixture for module box gluing according to claim 3, characterized in that: Handles are detachably connected to the outer walls of the first and second crossbeams facing away from the adhesive coating cavity.

7. The contouring fixture for module box gluing according to claim 3, characterized in that: The first crossbeam has a first positioning hole at its top, and the second crossbeam has a second positioning hole at its top. The first positioning hole is a round hole, and the second positioning hole is an oblong hole.

8. The contouring fixture for module box gluing according to claim 7, characterized in that: The length direction of the waist-shaped hole is consistent with the arrangement direction of the two crossbeams.

9. The contouring fixture for module box gluing according to claim 1, characterized in that: The flat plate is made of bakelite, while the crossbeam and side beam structures are made of aluminum alloy.

10. The contouring fixture for module box gluing according to claim 1, characterized in that: The side beam structure includes a first side beam and a second side beam arranged symmetrically, and the two sides of the first side beam and the second side beam are detachably connected to the crossbeam structure.

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