CN222552098U - A low-pressure mold for making ultra-large new energy battery packs - Google Patents
A low-pressure mold for making ultra-large new energy battery packs Download PDFInfo
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- CN222552098U CN222552098U CN202421226454.6U CN202421226454U CN222552098U CN 222552098 U CN222552098 U CN 222552098U CN 202421226454 U CN202421226454 U CN 202421226454U CN 222552098 U CN222552098 U CN 222552098U
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Abstract
The application discloses a low-pressure die for manufacturing an oversized new energy battery pack, which comprises a lower die set, an upper die set and a side die set, wherein the upper die set and the lower die set are respectively arranged at the upper part and the lower part of the side die set, concave surfaces corresponding to the convex ends of the upper die set and the lower die set are respectively arranged at the upper end and the lower end of the side die set, the upper die set comprises an upper die main body piece, a top plate pressing plate, an upper top plate and a lower bottom insert, the three-section design of the side die set and the arrangement of a notch between a die set side plate and an end support plate are adopted, the complicated curved surface modeling of the battery pack is adapted, the operation flexibility and the opening and closing smoothness of the die set are improved, the die maintenance and cleaning time is shortened, the production period is shortened, the production efficiency is improved, the dimensional accuracy and the surface quality of a formed part are improved through the precise matching of the hollowed-out baffle plate and the guide assembly in the upper die set, and the integrity and the sealing performance of the whole structure are enhanced.
Description
Technical Field
The application relates to the technical field of dies, in particular to a low-pressure die for manufacturing an ultra-large new energy battery pack.
Background
Today, where the new energy automobile industry is vigorously developing, the production of ultra-large battery packs faces an unprecedented challenge, especially in the production process using low pressure casting technology, with significant increases in technical difficulty. Wherein, temperature control and accurate management of mould size become the key bottleneck that restricts production efficiency and product quality. Specifically, the production environment temperature needs to be kept above 400 ℃, which not only increases the thermal management complexity of the die in actual operation, but also has more obvious thermal expansion and contraction effects on the die with huge body size, and the die deformation is extremely easy to be caused, so that the molding precision is seriously affected.
Additionally, the cell can wall thickness design is typically around 5mm, which is intended to ensure the strength and weight of the cell pack, thermal management requirements. However, under the prior art condition, the problem of deformation of the die directly threatens the design requirement, once the die is deformed to cause the uneven wall thickness of the casting, even less than 3.5mm, the structural strength and the tightness of the battery pack are affected, the casting is more likely to be scrapped directly, the great waste of resources is caused, and the production efficiency and the cost control are seriously hindered.
Disclosure of Invention
The application aims to overcome the existing defects, and provides a low-voltage die for manufacturing an ultra-large new energy battery pack, which can effectively solve the problems in the background technology.
The application provides a low-pressure die for manufacturing an ultra-large new energy battery pack, which comprises a lower die set, an upper die set and a side die set, wherein the upper die set and the lower die set are respectively arranged above and below the side die set, concave surfaces corresponding to the convex ends of the upper die set and the lower die set are respectively arranged at the upper end and the lower end of the side die set, the upper die set comprises an upper die main body part, a top plate pressing plate, an upper top plate and a lower bottom insert, the interior of the upper die main body part is a cavity, a hollow baffle plate in the upper die main body part divides the cavity in the upper die main body part into two parts, the lower bottom insert is embedded into a cavity at the lower end of the upper die main body part, the upper top plate is positioned in the cavity at the upper end, the upper top plate is provided with a top plate pressing plate, the upper top plate corresponds to an elastic component and a guide component arranged at the hollow baffle plate, the side die set comprises a die set side plate and end support plates, the die set side plates are positioned at the front and back sides of the end support plates, the die set and the side plates are closely arranged, the die set adopts three sections, the middle section side plates is provided with concave air guide plates, the two sides of the die set are arranged at the two sides of the lower die set, the lower die set are provided with guide plates, the air guide plates are arranged at the two sides of the lower die set, and the lower die set are respectively, and the air guide plate is provided with the air guide cylinder guide plates, and the air guide plate is provided with the air guide cylinder guide plate.
As a preferable technical scheme of the application, a notch is arranged between the module side plate and the end support plate in the side module, and the notch is arranged corresponding to the lower die cylinder.
As a preferable technical scheme of the application, the lower ends of the periphery of the lower template main body are provided with hanging hooks.
As a preferable technical scheme of the application, four corners of the upper module are provided with guide shafts.
As a preferable technical scheme of the application, the upper end of the lower die cylinder is provided with a limiting base plate, and a chute on the limiting base plate corresponds to the limiting plates around the upper die set.
Compared with the prior art, the three-section design of the side module and the arrangement of the notch between the side plate and the end support plate of the module are suitable for complex curved surface modeling of the battery pack, the operation flexibility and the smoothness of opening and closing of the module are improved, the maintenance and cleaning time of the module is shortened, the production period is shortened, the production efficiency is improved, the hollow baffle and the guide assembly in the upper module and the accurate design of the lower module are matched with the uniform pressure of the upper die pressing plate, the uniform distribution of materials in the die is ensured, the dimensional precision and the surface quality of a formed part are improved, the accurate matching of each part of the battery pack is ensured, and the integrity and the sealing performance of the whole structure are enhanced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic diagram of the upper module structure;
FIG. 3 is a schematic view of the lower module structure;
FIG. 4 is a schematic diagram of a side module configuration.
In the figure, the upper die set 1, the upper die body member 11, the top plate pressing plate 12, the upper top plate 13, the lower bottom insert 14, the side die set 2, the die set 21, the die set side plate 22, the end support plate 3, the lower die set 31, the lower die plate body 32, the lower die cylinder 33, the guide group 4, the elastic component 5, the guide component 6, the lifting hook 7, the guide shaft 8 and the limit backing plate.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiment of the present application (for convenience of description and understanding, the following description will be given with the upper part of fig. 2 as the upper part). All other embodiments, which can be made by those skilled in the art without the inventive effort, are intended to be within the scope of the present application.
Referring to fig. 1-4, the application provides a technical scheme that a low-voltage die for manufacturing an ultra-large new energy battery pack comprises a lower die set 3, an upper die set 1 and a side die set 2, wherein the upper die set 1 and the lower die set 3 are respectively arranged below the side die set 2, and concave surfaces corresponding to the protruding ends of the upper die set 1 and the lower die set 3 are respectively arranged at the upper end and the lower end of the side die set 2.
The upper module 1 is responsible for forming the top structure of the battery pack, while the lower module 3 is responsible for the bottom structure, and the two are precisely butted with the side modules 2 to jointly form the complete shell of the battery pack.
Concave surfaces at the upper and lower ends of the side modules 2 are used for receiving the convex ends of the upper module 1 and the lower module 3, so that accurate alignment and sealing are realized when the die is closed, stable pressure environment of a forming area is maintained, material leakage is prevented, accurate matching of the sizes of all parts of the battery pack can be ensured, and the integrity of the whole structure is improved.
The upper die set 1 comprises an upper die main body part 11, a top plate pressing plate 12, an upper top plate 13 and a lower bottom insert 14, wherein a cavity is formed in the upper die main body part 11, a hollow baffle in the upper die main body part divides the cavity in the upper die main body part 11 into two parts, the lower bottom insert 14 is embedded into a lower end cavity of the upper die main body part 11, the upper top plate 13 is positioned in the cavity at the upper end, the top plate pressing plate 12 is arranged above the upper top plate 13, and the upper top plate 13 corresponds to an elastic component 4 and a guide component 5 which are arranged on the hollow baffle.
The cavity inside the upper mold body 11 provides space for the formation of the battery pack upper case. The hollow baffle provides support for the internal structure, and the cavity at the lower part leaves space for the battery unit to form other parts of the shell.
The top plate pressing plate 12 is located above the upper top plate 13, and ensures uniform distribution and compactness of materials in the forming process by pressing downwards, so that consistency and strength of products are improved.
The lower bottom insert 14 is pre-installed at the lower end of the upper die body 11 to form a cavity formed by the workpiece.
The guiding component 5 has a positioning or guiding function and is matched with a corresponding structure on the upper top plate 13, so that accurate closing and positioning of the die are ensured, smooth movement of the die in the closing and opening processes is ensured, abrasion is reduced, and the service life of the die is prolonged.
The side module 2 comprises a module side plate 21 and end support plates 22, the module side plate 21 is positioned on the front side and the rear side of the end support plates 22 and is closely arranged on the front side and the rear side of the end support plates 22, the module side plate 21 adopts three sections, two ends of the middle section of the module side plate 21 are concave cambered surfaces, and the concave cambered surfaces are connected with the convex cambered surfaces of the two side sections of the module side plate 21.
The three-section design of the module side plate 21 considers the complex geometric shape of the side surface of the battery pack, and the curved surface profile of the battery pack can be better attached through segmentation, so that the formed battery pack is ensured to have good sealing performance and appearance quality.
The concave cambered surfaces at the two ends of the middle section are connected with the convex cambered surfaces at the two side sections, so that the die can adapt to the radian change of the side surface of the battery pack, the structural strength of the die is increased, the pressure is uniformly distributed in a closed state, and the deformation or damage caused by local stress concentration is avoided.
The end support 22 provides lateral stability and support, enhances the overall rigidity of the mold, and particularly effectively prevents the mold from deforming laterally when subjected to a high-pressure molding process, and ensures the stability and accuracy of molding.
The lower die set 3 comprises a lower die plate main body 31, a lower die cylinder 32 and a flow guide group 33, wherein the lower die cylinder 32 is arranged on the periphery of the lower surface of the lower die plate main body 31, and the flow guide group 33 is positioned in a through hole on the lower die plate main body 31.
The lower die plate main body 31 provides a forming space for the bottom structure of the battery pack, and the lower die cylinder 32 is arranged at the periphery, so that the lower die plate main body 31 can bear and transmit vertical pressure from the lower die cylinder 32, and the forming material is fully compacted in the die.
The lower die cylinder 32 is responsible for the opening and closing action of the die, and is driven by hydraulic pressure or air pressure to provide necessary pressure downwards, so that the die is closed and the material can be uniformly distributed in the die cavity in the forming process, and simultaneously, after the forming is finished, the retraction action of the lower die cylinder 32 helps the die to be opened, so that the finished product is conveniently taken out.
The guide group 33 is located in the through hole on the lower die plate main body 31, and is used for controlling the material flow, and is a guide channel for the material flow, so as to ensure that the material uniformly fills the die cavity.
Further, a notch is provided between the module side plate 21 and the end support plate 22 in the side module 2, and the notch is provided corresponding to the lower die cylinder 32.
The arrangement of the notch is to enable the module side plate 21 and the end support plate 22 to flexibly move when the lower die cylinder 32 drives the die to open, so that mutual interference is avoided. Smooth extension and retraction of the lower die cylinder 32 is ensured, limitation due to blocking of a die side plate is avoided, the smoothness of die operation is improved, the accurate alignment of the whole die is maintained, and the dimensional accuracy and the consistency of products during molding are ensured.
Further, hooks 6 are provided at the lower ends of the periphery of the lower template body 31.
Further, four corners of the upper module 1 are provided with guide shafts 7.
The guide shaft 7 provides a precise guiding function during the mold closing process. The alignment standard of the upper die set 1 and the lower die set 3 ensures that the position is accurate every time the die is closed.
Through four corners evenly distributed's guiding axle 7 design, the pressure when the mould is closed can evenly distributed, prevents deformation or the damage that local atress is too big to lead to, and protection mould structure is complete, increase of service life.
Further, a limit pad 8 is arranged at the upper end of the lower die cylinder 32, and a chute on the limit pad 8 corresponds to the limit plate 5 around the upper die set 1.
The limiting base plate 8 is accurately abutted with the limiting plates around the upper module 1 through the sliding groove, so that the assembly efficiency is improved, and convenience is brought to installation.
When the die set is used, the upper die set 1 and the lower die set 3 are respectively locked on an upper bottom plate and a lower bottom plate of external equipment, the external equipment drives the die set 1 and the lower die set 3 to move up and down, the die set side plates 21 and the end support plates 22 of the side die set 2 are connected with external oil cylinders, and the oil cylinders drive the die set side plates 21 and the end support plates 22 to be assembled in four directions. After the side drawing die is in place, the sand core is put into the die, then the upper die set 1 falls down to be die-assembled, the aluminum liquid in the furnace is pressed into the die cavity through the flow guide group 33 by the equipment heat preservation furnace to form castings, then the pressure is maintained, the lower die cylinder 32 rises after cooling, the upper die set 1 is jacked up, the castings are carried up along with the upper die, after rising to a certain height, the equipment receiving tray enters the neutral position in the middle of the upper die and the lower die, the oil cylinders of the side die set 2 are started, the front, the rear, the left, the right and the left directions are completed to open the die, the upper jacking plate 12 ejects the castings, and the castings fall on the external receiving tray.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a low pressure die for manufacturing ultra-large new energy battery packs, comprises a lower die set (3), an upper die set (1) and a side die set (2), the upper and lower sides of the side die set (2) are respectively provided with the upper die set (1) and the lower die set (3), characterized in that the upper and lower ends of the side die set (2) are respectively provided with concave surfaces corresponding to the protruding ends of the upper die set (1) and the lower die set (3), the upper die set (1) comprises an upper die main body (11), a top plate pressing plate (12), an upper top plate (13) and a lower bottom insert (14), the upper die main body (11) is internally provided with a cavity, hollow baffles in the hollow baffles divide the cavity of the upper die main body (11) into two parts, the lower bottom insert (14) are embedded in the cavity of the upper die main body (11), the upper top plate (13) is positioned in the cavity of the upper end, the upper top plate (13) is provided with a top plate (12), the upper top plate (13) and the elastic baffle plate (4) and the side plate (21) are arranged at the corresponding to the two side plate guide blocks (21) of the side plate (21), the two side plate parts (21) are arranged at the two side plate parts of the two side plate parts (21) and the two side plate parts (21) are arranged near the two side plate parts (21), the lower die set is connected with the convex cambered surfaces of the two side sections of the die set side plates (21), the lower die set (3) comprises a lower die plate main body (31), a lower die cylinder (32) and a flow guide group (33), the lower die cylinder (32) is arranged on the periphery of the lower surface of the lower die plate main body (31), and the flow guide group (33) is located in a through hole in the lower die plate main body (31).
2. The low-pressure die for manufacturing the ultra-large new energy battery pack according to claim 1, wherein a notch is formed between a die set side plate (21) and an end support plate (22) in the side die set (2), and the notch is arranged corresponding to the lower die cylinder (32).
3. The low-pressure die for manufacturing the ultra-large new energy battery pack according to claim 1, wherein hooks (6) are arranged at the lower ends of the periphery of the lower die plate main body (31).
4. The low-voltage die for manufacturing the ultra-large new energy battery pack according to claim 1 is characterized in that four corners of the upper die set (1) are provided with guide shafts (7).
5. The low-pressure die for manufacturing the ultra-large new energy battery pack according to claim 1, wherein the upper end of the lower die cylinder (32) is provided with a limit base plate (8), and a sliding groove on the limit base plate (8) corresponds to limit plates around the upper die set (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421226454.6U CN222552098U (en) | 2024-05-31 | 2024-05-31 | A low-pressure mold for making ultra-large new energy battery packs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421226454.6U CN222552098U (en) | 2024-05-31 | 2024-05-31 | A low-pressure mold for making ultra-large new energy battery packs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222552098U true CN222552098U (en) | 2025-03-04 |
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ID=94750933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421226454.6U Active CN222552098U (en) | 2024-05-31 | 2024-05-31 | A low-pressure mold for making ultra-large new energy battery packs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222552098U (en) |
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2024
- 2024-05-31 CN CN202421226454.6U patent/CN222552098U/en active Active
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