CN218975708U - Explosion-proof valve structure of new energy battery top cover and processing die thereof - Google Patents
Explosion-proof valve structure of new energy battery top cover and processing die thereof Download PDFInfo
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- CN218975708U CN218975708U CN202223218448.XU CN202223218448U CN218975708U CN 218975708 U CN218975708 U CN 218975708U CN 202223218448 U CN202223218448 U CN 202223218448U CN 218975708 U CN218975708 U CN 218975708U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses an explosion-proof valve structure of a new energy battery top cover and a processing mould thereof, wherein the explosion-proof valve structure comprises a valve wire groove (2) which is arranged on the upper top surface of the battery top cover (1) and is in an annular concave shape, an annular indentation groove (3) is formed in the bottom of the valve wire groove (2), a first boss (4) is arranged on the inner side of an inner ring of the valve wire groove (2), a second boss (5) is arranged on the outer side of an outer ring of the valve wire groove (2), and the first boss (4) and the second boss (5) are both protruded above the upper top surface of the battery top cover (1); the protruding height of the second boss (5) is higher than that of the first boss (4); the shape of the first boss (4) is a closed block corresponding to the shape of the inner ring of the valve wire groove (2); the shape of the second boss (5) is annular corresponding to the shape of the outer ring of the valve wire groove (2). The explosion-proof valve has a simple structure, blanking force during stamping can be greatly reduced, the cost of a processing die is reduced, and the service life of the processing die is prolonged.
Description
Technical Field
The utility model relates to the technical field of battery top cover forming, in particular to an explosion-proof valve structure of a new energy battery top cover and a processing die thereof.
Background
At the moment of rapid development of new energy automobiles, the new energy automobile battery also needs to be continuously improved to adapt to market competition, the current new energy automobile battery is generally a lithium battery, the lithium battery needs to be provided with a battery top cover with an explosion-proof function, an explosion-proof valve structure plays a key role in the battery top cover, the explosion-proof valve structure is not a concave sinking table as in a valve structure in the traditional hydraulic engineering, an indentation is further arranged at the bottom of the sinking table, and when a safety accident occurs to the lithium battery, the explosion-proof valve structure is broken first before the explosion of the lithium battery, so that serious accidents caused by overlarge internal and external pressure differences are avoided. Because the battery top cover is also provided with the structures such as the positive and negative pole hole, the liquid injection hole and the like, the processing of the current explosion-proof valve structure is generally integrated with the structures such as the positive and negative pole hole, the liquid injection hole and the like into a whole for stamping, and huge blanking force is needed during stamping in the processing mode. Particularly, as the explosion-proof valve structure is sunken downwards relative to the upper top surface of the battery top cover, the material in the sunken part fills the rest position of the battery top cover after flowing and deforming, and the upper top surface of the battery top cover is a horizontal plane, no redundant space is available for filling the material in the sunken part, that is, the material in the sunken part needs to be spread on each part of the battery top cover, each part of the battery top cover needs to be deformed to a certain extent, the required blanking force is huge, the requirement on processing equipment is higher, the service life of the stamping die is often shorter, and the processing precision is also not high. Therefore, there is a need to develop an explosion-proof valve structure of a new energy battery top cover and a processing mold thereof to solve the current difficulties.
Disclosure of Invention
The utility model aims to provide an explosion-proof valve structure of a new energy battery top cover and a processing die thereof. The explosion-proof valve has a simple structure, blanking force during stamping can be greatly reduced, the cost of a processing die is reduced, and the service life of the processing die is prolonged.
The technical scheme of the utility model is as follows: the utility model provides an explosion-proof valve structure of new energy battery top cap, is the valve line groove of annular sunken form including setting up in the top surface on the battery top cap, the tank bottom of valve line groove is equipped with annular indentation groove one, the inner ring inboard of valve line groove is equipped with first boss, the outer loop outside of valve line groove is equipped with the second boss, the top of top surface on the battery top cap is all bulged to first boss and second boss.
Compared with the prior art, the utility model has the beneficial effects that: in the structure of the explosion-proof valve, the first boss is arranged on the inner side of the inner ring of the valve wire groove, the second boss is arranged on the outer side of the outer ring of the valve wire groove, and the main body structure of the valve wire groove is not changed by the arrangement of the first boss and the second boss.
In addition, based on the setting of first boss and second boss, the thickness value of thinnest position department after the product shaping can be littleer, is favorable to promoting the stability of product.
In the above-mentioned explosion-proof valve structure of the new energy battery top cover, the protruding height of the second boss is higher than the protruding height of the first boss.
In the above-mentioned explosion-proof valve structure of a new energy battery top cover, the shape of the first boss is a closed block corresponding to the shape of the inner ring of the valve wire groove.
In the above-mentioned explosion-proof valve structure of the new energy battery top cover, the second boss is in a ring shape corresponding to the outer ring shape of the valve wire groove.
In the explosion-proof valve structure of the new energy battery top cover, the indentation grooves are annularly arranged along the center of the bottom of the valve line groove.
The utility model provides a processing mould of explosion-proof valve structure of new energy battery top cap, includes first last mould and first lower mould, and the bottom of first last mould is equipped with the first shaping portion with valve wire casing shape looks adaptation, and the bottom of first shaping portion is equipped with the second shaping portion with indentation groove shape looks adaptation, is equipped with the first indent with first boss shape looks adaptation in the inboard of first shaping portion, is equipped with the second indent with second boss shape looks adaptation in the outside of first shaping portion.
In addition, in the explosion-proof valve structure of the new energy battery top cover, when an auxiliary groove which corresponds to the valve wire groove and is in an annular concave shape is arranged at the lower bottom surface of the battery top cover, a third boss protruding to the lower bottom surface of the battery top cover is arranged at the inner side of an inner ring of the auxiliary groove.
The explosion-proof valve structure is processed by using another processing die, and comprises a second upper die and a second lower die, wherein the bottom of the second upper die is provided with a third forming part matched with the shape of a valve wire groove, the bottom of the third forming part is provided with a fourth forming part matched with the shape of an indentation groove, the inner side of the third forming part is provided with a third concave part matched with the shape of a first boss, and the outer side of the third forming part is provided with a fourth concave part matched with the shape of a second boss; the second lower die is provided with a fifth forming part matched with the shape of the auxiliary groove, and the inner side of the fifth forming part is provided with a fifth concave part matched with the shape of the third boss.
The two processing dies can be adaptively selected according to different explosion-proof valve structures, and the common structural characteristics of the two processing dies are that deformation spaces are reserved for deformation of the boss at the upper die or the lower die, so that the explosion-proof valve structures with different boss shapes can be finally formed by stamping.
Drawings
FIG. 1 is a schematic top view of the present utility model;
FIG. 2 is a cross-sectional view of the structure of the explosion-proof valve in embodiment 1;
FIG. 3 is a cross-sectional view of the structure of the explosion-proof valve in embodiment 2;
FIG. 4 is a schematic view showing the structure of a working mold in example 1;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a schematic view showing the structure of a working mold in example 2;
fig. 7 is a partial enlarged view of fig. 6 at B.
Reference numerals: 1-battery top cover, 2-valve wire groove, 3-indentation groove, 4-first boss, 5-second boss, 6-auxiliary groove, 7-third boss, 8-first upper die, 9-first lower die, 10-first molding portion, 11-second molding portion, 12-first concave portion, 13-second concave portion, 14-second upper die, 15-second lower die, 16-third molding portion, 17-fourth molding portion, 18-third concave portion, 19-fourth concave portion, 20-fifth molding portion, 21-fifth concave portion.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
Example 1: the utility model provides an explosion-proof valve structure of new energy battery top cap, the structure is as shown in fig. 1 and fig. 2, including setting up in the valve line groove 2 of top surface and being annular sunken form on battery top cap 1, the tank bottom of valve line groove 2 is equipped with annular indentation groove 3 one, the inner ring inboard of valve line groove 2 is equipped with first boss 4, the outer loop outside of valve line groove 2 is equipped with second boss 5, the top of top surface on the battery top cap 1 is all bulged to first boss 4 and second boss 5.
Preferably, the protruding height of the second boss 5 is higher than the protruding height of the first boss 4.
Preferably, the shape of the first boss 4 is a closed block corresponding to the shape of the inner ring of the valve wire groove 2.
Preferably, the second boss 5 has a ring shape corresponding to the outer ring shape of the valve spool 2.
Preferably, the indentation groove 3 is annularly arranged along the center of the groove bottom of the valve groove 2, and can uniformly bear force during blasting.
Preferably, the valve wire groove 2 in a ring shape specifically comprises a pair of semicircular arcs which are symmetrically arranged on the shaft, and the pair of semicircular arcs are connected through two sections of straight lines, so that even stress can be applied during blasting.
Preferably, the shape of the annular indentation groove 3 specifically comprises a pair of semicircular arcs which are symmetrically arranged on the shaft, the pair of semicircular arcs are connected through two sections of straight lines, and the shape of the indentation groove 3 is matched with the shape of the valve line groove 2.
In this embodiment, the valve wire groove 2 and the indentation groove 3 are obtained by single-sided punching only on the upper top surface of the battery top cover 1.
The processing mold for processing the explosion-proof valve structure in this embodiment includes, as shown in fig. 4 and 5, a first upper mold 8 and a first lower mold 9, wherein a first molding portion 10 adapted to the shape of the valve spool 2 is disposed at the bottom of the first upper mold 8, a second molding portion 11 adapted to the shape of the indentation 3 is disposed at the bottom of the first molding portion 10, a first concave portion 12 adapted to the shape of the first boss 4 is disposed at the inner side of the first molding portion 10, and a second concave portion 13 adapted to the shape of the second boss 5 is disposed at the outer side of the first molding portion 10.
The part corresponding to the explosion-proof valve structure on the battery top cover 1 is arranged in a processing die for stamping, stamping is completed when the first upper die 8 runs to a bottom dead center, at the moment, a first concave part 12 and a second concave part 13 still exist between the upper top surface of the battery top cover 1 on the inner side and the outer side of the formed valve line groove 2 and the first upper die 8, material flows in the valve line groove 2 and the indentation groove 3 are filled in the first concave part 12 and the second concave part 13, local stamping forming is realized, and the rest parts of the battery top cover 1 cannot deform.
Example 2: the utility model provides an explosion-proof valve structure of new energy battery top cap, the structure is as shown in fig. 1 and 3, including setting up in the valve line groove 2 of top surface and being annular sunken form on battery top cap 1, the tank bottom of valve line groove 2 is equipped with annular indentation groove 3 one, the inner ring inboard of valve line groove 2 is equipped with first boss 4, the outer loop outside of valve line groove 2 is equipped with second boss 5, the top of top surface on the battery top cap 1 is all bulged to first boss 4 and second boss 5.
Preferably, the protruding height of the second boss 5 is higher than the protruding height of the first boss 4.
Preferably, the shape of the first boss 4 is a closed block corresponding to the shape of the inner ring of the valve wire groove 2.
Preferably, the second boss 5 has a ring shape corresponding to the outer ring shape of the valve spool 2.
Preferably, the indentation groove 3 is annularly arranged along the center of the groove bottom of the valve groove 2, and can uniformly bear force during blasting.
Preferably, the valve wire groove 2 in a ring shape specifically comprises a pair of semicircular arcs which are symmetrically arranged on the shaft, and the pair of semicircular arcs are connected through two sections of straight lines, so that even stress can be applied during blasting.
Preferably, the shape of the annular indentation groove 3 specifically comprises a pair of semicircular arcs which are symmetrically arranged on the shaft, the pair of semicircular arcs are connected through two sections of straight lines, and the shape of the indentation groove 3 is matched with the shape of the valve line groove 2.
Preferably, an auxiliary groove 6 having an annular concave shape corresponding to the valve wire groove 2 is provided at the lower bottom surface of the battery top cover 1.
Preferably, a third boss 7 protruding below the lower bottom surface of the battery top cover 1 is provided on the inner side of the inner ring of the auxiliary groove 6.
In this embodiment, the upper top surface and the lower bottom surface of the battery top cover 1 are subjected to double-sided punching to obtain the valve wire groove 2, the auxiliary groove 6 and the indentation groove 3.
The processing mold for processing the explosion-proof valve structure in this embodiment is shown in fig. 6 and 7, and includes a second upper mold 14 and a second lower mold 15, wherein the bottom of the second upper mold 14 is provided with a third molding part 16 adapted to the shape of the valve wire groove 2, the bottom of the third molding part 16 is provided with a fourth molding part 17 adapted to the shape of the indentation groove 3, the inner side of the third molding part 16 is provided with a third concave part 18 adapted to the shape of the first boss 4, and the outer side of the third molding part 16 is provided with a fourth concave part 19 adapted to the shape of the second boss 5; the second lower die 15 is provided with a fifth molding part 20 which is matched with the shape of the auxiliary groove 6, and a fifth concave part 21 which is matched with the shape of the third boss 7 is arranged on the inner side of the fifth molding part 20.
The part of the battery top cover 1 corresponding to the explosion-proof valve structure is arranged in a processing die for stamping, when the second upper die 14 runs to the bottom dead center, stamping is completed, at the moment, a third concave part 18 and a fourth concave part 19 still exist between the upper top surface of the battery top cover 1 and the second upper die 14 at the inner side and the outer side of the formed valve line groove 2, material flows in the valve line groove 2 and the indentation groove 3 are filled in the first concave part 12 and the second concave part 13, meanwhile, a fifth concave part 21 still exists between the lower bottom surface of the battery top cover 1 and the second lower die 15, the material flows in the auxiliary groove 6 are filled in the fifth concave part 21, partial stamping forming is realized, and other parts of the battery top cover 1 cannot deform.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (9)
1. An explosion-proof valve structure of new energy battery top cap, its characterized in that: including setting up in the valve line groove (2) of top surface and being annular sunken form on battery top cap (1), the tank bottom of valve line groove (2) is equipped with annular indentation groove (3) one, the inner ring inboard of valve line groove (2) is equipped with first boss (4), the outer loop outside of valve line groove (2) is equipped with second boss (5), the top of top surface on first boss (4) and second boss (5) all protrusion to battery top cap (1).
2. The explosion-proof valve structure of the new energy battery top cover according to claim 1, wherein: the protruding height of the second boss (5) is higher than that of the first boss (4).
3. The explosion-proof valve structure of the new energy battery top cover according to claim 1, wherein: the shape of the first boss (4) is a closed block corresponding to the shape of the inner ring of the valve wire groove (2).
4. The explosion-proof valve structure of the new energy battery top cover according to claim 1, wherein: the shape of the second boss (5) is annular corresponding to the shape of the outer ring of the valve wire groove (2).
5. The explosion-proof valve structure of the new energy battery top cover according to claim 1, wherein: the indentation grooves (3) are annularly arranged along the center of the groove bottom of the valve line groove (2).
6. The explosion-proof valve structure of the new energy battery top cover according to any one of claims 1 to 5, wherein: an auxiliary groove (6) which is corresponding to the valve wire groove (2) and is in an annular concave shape is arranged at the lower bottom surface of the battery top cover (1).
7. The explosion-proof valve structure of the new energy battery top cover according to claim 6, wherein: the inner side of the inner ring of the auxiliary groove (6) is provided with a third boss (7) protruding below the lower bottom surface of the battery top cover (1).
8. A processing die for processing the explosion-proof valve structure of the new energy battery top cover according to any one of claims 1 to 5, which is characterized in that: including first upper die (8) and first lower mould (9), the bottom of first upper die (8) is equipped with first shaping portion (10) with valve line groove (2) shape looks adaptation, the bottom of first shaping portion (10) is equipped with second shaping portion (11) with indentation groove (3) shape looks adaptation, be equipped with in the inboard of first shaping portion (10) with first boss (4) shape looks adaptation first indent (12), be equipped with in the outside of first shaping portion (10) with second boss (5) shape looks adaptation second indent (13).
9. A processing die for processing the explosion-proof valve structure of the new energy battery top cover of claim 7, which is characterized in that: the valve wire groove forming die comprises a second upper die (14) and a second lower die (15), wherein a third forming part (16) matched with the shape of the valve wire groove (2) is arranged at the bottom of the second upper die (14), a fourth forming part (17) matched with the shape of the indentation groove (3) is arranged at the bottom of the third forming part (16), a third concave part (18) matched with the shape of the first boss (4) is arranged at the inner side of the third forming part (16), and a fourth concave part (19) matched with the shape of the second boss (5) is arranged at the outer side of the third forming part (16); the second lower die (15) is provided with a fifth forming part (20) which is matched with the shape of the auxiliary groove (6), and the inner side of the fifth forming part (20) is provided with a fifth concave part (21) which is matched with the shape of the third boss (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223218448.XU CN218975708U (en) | 2022-12-02 | 2022-12-02 | Explosion-proof valve structure of new energy battery top cover and processing die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223218448.XU CN218975708U (en) | 2022-12-02 | 2022-12-02 | Explosion-proof valve structure of new energy battery top cover and processing die thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218975708U true CN218975708U (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223218448.XU Active CN218975708U (en) | 2022-12-02 | 2022-12-02 | Explosion-proof valve structure of new energy battery top cover and processing die thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218975708U (en) |
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2022
- 2022-12-02 CN CN202223218448.XU patent/CN218975708U/en active Active
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