CN211074364U - Lithium ion secondary battery shell punching die - Google Patents
Lithium ion secondary battery shell punching die Download PDFInfo
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- CN211074364U CN211074364U CN201922050887.6U CN201922050887U CN211074364U CN 211074364 U CN211074364 U CN 211074364U CN 201922050887 U CN201922050887 U CN 201922050887U CN 211074364 U CN211074364 U CN 211074364U
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Abstract
The utility model discloses a lithium ion secondary battery dashes shell mould structure, including last mould and lower mould, go up the mould and have many places butt joint plane between the lower mould, the butt joint plane is the lower surface of last mould and the upper surface of lower mould, and the corresponding position of going up mould and lower mould is equipped with two L shape pits, and the below of lower mould is equipped with two sets of mold cores that correspond two L shape pits, goes up the shaping station for the product between mould and the lower mould, the utility model discloses stretch the plastic-aluminum membrane, through the planar structure of the different levels of mould, obtain the plastic-aluminum membrane that has different hierarchy to the multi-level plane degree requirement that produces in the matching polymer lithium ion battery production process, avoided the bottom rib of conventional two pit structures, thereby solved the outward appearance problem that produces by the plane degree requirement when guaranteeing maximum design space.
Description
Technical Field
The utility model belongs to the technical field of the battery plastic-aluminum membrane technique of dashing the shell and specifically relates to a lithium ion secondary battery dash shell mould is related to.
Background
In polymer lithium ion secondary battery's production process, because of the structure of special-shaped battery is complicated, there is the plane degree demand of different levels in the tensile local region of plastic-aluminum membrane, and the unmatched problem of plane degree demand can be caused to the shell mould that dashes of single plane, and then causes the phenomenon that the finished product produces outward appearance plastic-aluminum membrane fold after the encapsulation, in addition, conventional two hole schemes can produce the bottom rib, occupy effective design space. Therefore, it is necessary to design a lithium ion secondary battery stamping die.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a shell punching die for a lithium ion secondary battery.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a lithium ion secondary battery dashes shell mould, includes mould and lower mould, goes up and has many places butt joint plane between the mould and the lower mould, and the butt joint plane is the lower surface of last mould and the upper surface of lower mould, and the corresponding position of going up mould and lower mould is equipped with two L shape die holes, and the below of lower mould is equipped with two sets of mold cores that correspond two L shape die holes, goes up the shaping station of product between mould and the lower mould.
Furthermore, the butt joint surfaces of the upper die and the lower die are designed into multi-step planes according to requirements, and the multi-step planes are in transition connection through inclined planes.
Furthermore, the two sets of mold cores and the two mold pits are in asymmetric structures.
Furthermore, in the two sets of mold cores, the height of the first mold core is smaller than that of the second mold core;
in the two mold pits, the width of the first pit position is smaller than that of the second pit position.
Further, the two sets of mold cores move synchronously.
Furthermore, the single-side clearance between the mold core and the mold pit is larger than 0.15 mm.
The utility model has the advantages that:
the utility model discloses a control lower mould and last echelonment plane between the mould, obtain possessing the planar plastic-aluminum membrane shape of many ladders, the single problem of towards shell plane degree of single plane mould has been solved, the conventional two hole structure bottom manadesma occupation space problem has been solved, special-shaped polymer lithium ion secondary battery's multi-level plane degree demand has been satisfied, effective design space has been promoted, and then the outward appearance fold problem of having solved the battery finished product because of the plane degree is not matched with and is produced under maximum space utilization's prerequisite.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment 1 of the present invention;
FIG. 2 is a schematic view of the aluminum-plastic film according to the preferred embodiment of the present invention after forming;
in the figure; the die comprises an upper die 1, a lower die 2, a first die core 3, a second die core 4, an aluminum-plastic film 5, a first pit position 11 and a second pit position 12.
Detailed Description
Embodiment 1 as shown in fig. 1 to 2, a lithium ion secondary battery shell punching mold comprises an upper mold 1 and a lower mold 2, wherein a plurality of butt joint planes are arranged between the upper mold 1 and the lower mold 2, the butt joint planes are the lower surface of the upper mold 1 and the upper surface of the lower mold 2, two L-shaped mold pits are arranged at corresponding positions of the upper mold 1 and the lower mold 2, two sets of mold cores corresponding to two L-shaped mold pits are arranged below the lower mold 2, and a product molding station is arranged between the upper mold 1 and the lower mold 2.
Furthermore, the butt joint surfaces of the upper die 1 and the lower die 2 are designed into multi-step planes according to requirements, and the multi-step planes are in transition connection through inclined planes.
Furthermore, the two sets of mold cores and the two mold pits are in asymmetric structures.
Further, in the two sets of mold cores, the height of the first mold core 3 is smaller than that of the second mold core 4;
in the two mold pits, the width of the first pit position 11 is smaller than the width of the second pit position height 12.
Further, the two sets of mold cores move synchronously.
Furthermore, the size of the mold core is slightly smaller than the size of the pit, the size of the mold core is matched with that of the pit, and when the mold core runs, the single-side clearance between the mold core and the mold pit is larger than 0.15 mm.
In this embodiment, the shape of the cell is L type;
the utility model discloses arrange lower mould 2 in with plastic-aluminum membrane 5 and go up between the mould 1, it is tensile to form plastic-aluminum membrane 5 through removing mold core 3, through controlling many ladder planes to obtain plastic-aluminum membrane 5 that has many ladder plane effects, the product after the shaping is as shown in figure 2, the utility model provides a single problem of towards shell plane degree of single plane mould, solved conventional two hole structure bottom manadesma occupation space problem, satisfied polymer lithium ion secondary battery's multi-level plane degree demand, promoted effective design space, and then solved the outward appearance fold problem that the battery finished product produced because of the plane degree is unmatched under maximum space utilization's the prerequisite.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A shell punching die for a lithium ion secondary battery comprises an upper die (1) and a lower die (2) and is characterized in that,
a plurality of butt joint planes are arranged between the upper die (1) and the lower die (2), the butt joint planes are the lower surface of the upper die (1) and the upper surface of the lower die (2), two L-shaped die pits are arranged at corresponding positions of the upper die (1) and the lower die (2), two sets of die cores corresponding to the L-shaped die pits are arranged below the lower die (2), and a forming station of a product is arranged between the upper die (1) and the lower die (2).
2. The lithium ion secondary battery can punching mold according to claim 1,
the butt joint surfaces of the upper die (1) and the lower die (2) are designed into multi-step planes according to requirements, and the multi-step planes are in transition connection through inclined planes.
3. The lithium ion secondary battery shell punching mold according to claim 1, wherein the two sets of mold cores and the two mold pits are both asymmetric structures.
4. The lithium ion secondary battery can punching mold according to claim 1,
in the two sets of mold cores, the height of the first mold core (3) is smaller than that of the second mold core (4);
in the two mold pits, the width of the first pit (11) is smaller than that of the second pit (12).
5. The lithium ion secondary battery shell punching die of claim 1, wherein the two sets of die cores move synchronously.
6. The lithium ion secondary battery shell punching die as claimed in claim 1, wherein the single-side clearance between the die core and the die pit is greater than 0.15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922050887.6U CN211074364U (en) | 2019-11-25 | 2019-11-25 | Lithium ion secondary battery shell punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922050887.6U CN211074364U (en) | 2019-11-25 | 2019-11-25 | Lithium ion secondary battery shell punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211074364U true CN211074364U (en) | 2020-07-24 |
Family
ID=71636274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922050887.6U Active CN211074364U (en) | 2019-11-25 | 2019-11-25 | Lithium ion secondary battery shell punching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211074364U (en) |
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2019
- 2019-11-25 CN CN201922050887.6U patent/CN211074364U/en active Active
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