CN219180644U - Sealing element and battery cell top cover - Google Patents
Sealing element and battery cell top cover Download PDFInfo
- Publication number
- CN219180644U CN219180644U CN202222636614.1U CN202222636614U CN219180644U CN 219180644 U CN219180644 U CN 219180644U CN 202222636614 U CN202222636614 U CN 202222636614U CN 219180644 U CN219180644 U CN 219180644U
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- 238000007789 sealing Methods 0.000 title claims abstract description 222
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 67
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 67
- 239000003792 electrolyte Substances 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 20
- 150000001875 compounds Chemical class 0.000 description 12
- 238000005457 optimization Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a battery cell top cover, in particular to a sealing element and a battery cell top cover, wherein the sealing element comprises a first annular sealing part which is annularly arranged, the first annular sealing part is provided with a middle hole, a second annular sealing part is arranged on the first annular sealing part in a sealing protruding mode, the middle hole is positioned on the inner side of the second annular sealing part, a first annular groove and/or a first annular protrusion are arranged on the first annular sealing part, and the first annular groove and/or the first annular protrusion are sleeved on the outer side of the second annular sealing part. The sealing piece changes the sealing between the sealing part of the pole sealing ring and the aluminum sheet into linear-surface combined sealing, realizes the multiple compression ratio of the sealing piece, enhances the sealing performance, and further reduces the occurrence probability of leakage of electrolyte after long-time use from the sealing piece and the aluminum sheet.
Description
Technical Field
The utility model relates to a battery cell top cover, in particular to a sealing piece and a battery cell top cover.
Background
At present, in the use of the battery core top cover, the phenomenon of liquid leakage of part of the battery core can occur in a pole area frequently, this greatly reduces the use safety performance of the battery core, specifically, as shown in fig. 1-3, the component on the battery core top cover mainly comprises a pole 8, an upper plastic 11, a terminal pressing block 9, a photo aluminum sheet 10 and the like, the terminal pressing block 9 is arranged on the upper plastic 11, the terminal pressing block 9 is arranged on the terminal pressing block 9, the pole 8 penetrates through the photo aluminum sheet 10 and the upper plastic 11 and is matched with the terminal pressing block 9, in order to avoid the phenomenon of liquid leakage of electrolyte in the pole area of the battery core, a pole sealing ring 29 is arranged between the pole 8 and the photo aluminum sheet 10 in a sealing manner, so that the electrolyte is prevented from leaking from between the pole 8 and the photo aluminum sheet 10, and the electric power generation accident can be seriously reduced due to the fact that the pole sealing ring 29 is positioned at only one position between the photo aluminum sheet 10 and the pole sealing ring 29 and is plane, when the battery core is used for a long time, the pole sealing ring 29 is gradually aged, the sealing performance of the photo 10 and the pole sealing ring 29 is poor, the phenomenon of the pole 8 and the pole sealing ring 10 is easy to occur, and the liquid leakage of the battery core is seriously caused, and the safety accident can occur when the phenomenon occurs.
Disclosure of Invention
The utility model aims at: aiming at the problems that in the background art, when a battery cell is used for a long time, a pole sealing ring is gradually aged, and a leakage phenomenon is easy to occur between a pole and a light aluminum sheet, the sealing piece and the battery cell top cover are provided.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a sealing member, includes the first annular seal portion that annular set up, first annular seal portion has the centre bore, first annular seal portion goes up the sealed protruding second annular seal portion that is equipped with, the centre bore is located second annular seal portion is inboard, be provided with first annular groove and/or first annular bulge on the first annular seal portion, first annular groove and/or first annular bulge cover are established in the second annular seal portion outside.
This application a sealing member, when using, with the sealing member of this application set up between utmost point post and light aluminum sheet, first annular sealing portion sealed set up in the base with between the light aluminum sheet, second annular sealing portion sealed set up in the cylinder with between the light aluminum sheet, through setting up seal fit's first annular groove and second annular bulge, and/or seal fit's first annular bulge and second annular groove, and then effectively increased the effective sealing area between sealing member and the light aluminum sheet, change the sealing surface between sealing member and the light aluminum sheet into the structure (the shape of arch and recess can be square, triangle-shaped, convex or the combination of above-mentioned shape), the quantity of single shape can be at least 1) compound face (at least two face) structure, and then change utmost point post sealing washer sealing portion region by single planar structure into compound face (at least two face) structure that has recess/bellied structure, through above structure optimization, change the sealing member and light sealing member between the utmost point post sealing portion and the sealing member of light core wire into the time ratio of having the improvement of recess/bellied structure, and then the sealing member takes place between the sealing member of this application time ratio of sealing member and the improvement time (the sealing member of this application, and the sealing member is long time-to take place between the sealing member.
Preferably, when the first annular sealing part is provided with the first annular grooves, the number of the first annular grooves is at least two, and all the first annular grooves are sleeved in sequence from inside to outside.
Preferably, the bottoms of at least two of said first annular grooves are on two different faces.
Preferably, when the first annular sealing part is provided with first annular protrusions, the number of the first annular protrusions is at least two, and all the first annular protrusions are sleeved in sequence from inside to outside.
Preferably, the tops of at least two of said first annular projections are on two different faces.
Preferably, when the first annular seal portion is provided with a first annular groove and a first annular projection, all of the first annular groove and the first annular projection are externally sleeved from inside.
Preferably, the cross section of the first annular groove and/or the first annular protrusion is square, rectangular, triangular or semicircular.
The application discloses a top cover of an electric core, which comprises a pole, a light aluminum sheet and a sealing element as described in the application,
wherein, the liquid crystal display device comprises a liquid crystal display device,
the pole comprises a base and a column body convexly arranged on the base;
the first annular sealing part is arranged between the base and the aluminum sheet in a sealing way, and the second annular sealing part is arranged between the column body and the aluminum sheet in a sealing way;
the aluminum sheet is sleeved on the outer side of the pole, and when the first annular sealing part is provided with a first annular groove, the aluminum sheet is provided with a second annular protruding part which is in sealing fit with the first annular groove; when the first annular bulge is arranged on the first annular sealing part, a second annular groove which is in sealing fit with the first annular bulge is arranged on the aluminum sheet.
The application a electricity core top cap, include utmost point post, light aluminum sheet and this application the sealing member, first annular seal portion seal set up in the base with between the light aluminum sheet, second annular seal portion seal set up in the cylinder with between the light aluminum sheet, through setting up seal fit's first annular groove and second annular bulge, and/or, seal fit's first annular bulge and second annular groove, and then effectively increased the effective sealing area between sealing member and the light aluminum sheet, change the sealing surface between sealing member and the light aluminum sheet into the structure (the shape of protruding and recess can be square, triangle-shaped, convex or the combination of above-mentioned shape, the quantity of single shape can be at least 1) compound face (two at least face) structures, and then change utmost point post sealing washer sealing portion region by single planar structure into compound face (two at least face) structures of the bellied structure of having a recess/, through above structural optimization, change the sealing member with between utmost point sealing portion and the light aluminum sheet effective sealing area, change the sealing surface between the sealing member of this realization of sealing member and the light aluminum sheet from the sealing member of this application to the time of multiple sealing member, and the sealing member that the time ratio takes place between the sealing member is improved to the sealing member, and the time of sealing member is then takes place to the multiple sealing member.
Preferably, the sealing device further comprises an upper plastic, wherein the upper plastic is arranged on the aluminum sheet, the upper plastic is sleeved outside the cylinder, and the upper plastic is positioned above the second annular sealing part.
Preferably, the top of the second annular seal portion is in sealing engagement with the upper plastic seal.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. this application a sealing member, when using, with the sealing member of this application set up between utmost point post and light aluminum sheet, first annular sealing portion sealed set up in the base with between the light aluminum sheet, second annular sealing portion sealed set up in the cylinder with between the light aluminum sheet, through setting up seal fit's first annular groove and second annular bulge, and/or seal fit's first annular bulge and second annular groove, and then effectively increased the effective sealing area between sealing member and the light aluminum sheet, change the sealing surface between sealing member and the light aluminum sheet into the structure (the shape of arch and recess can be square, triangle-shaped, convex or the combination of above-mentioned shape), the quantity of single shape can be at least 1) compound face (at least two face) structure, and then change utmost point post sealing washer sealing portion region by single planar structure into compound face (at least two face) structure that has recess/bellied structure, through above structure optimization, change the sealing member and light sealing member between the utmost point post sealing portion and the sealing member of light core wire into the time ratio of having the improvement of recess/bellied structure, and then the sealing member takes place between the sealing member of this application time ratio of sealing member and the improvement time (the sealing member of this application, and the sealing member is long time-to take place between the sealing member.
2. The application a electricity core top cap, include utmost point post, light aluminum sheet and this application the sealing member, first annular seal portion seal set up in the base with between the light aluminum sheet, second annular seal portion seal set up in the cylinder with between the light aluminum sheet, through setting up seal fit's first annular groove and second annular bulge, and/or, seal fit's first annular bulge and second annular groove, and then effectively increased the effective sealing area between sealing member and the light aluminum sheet, change the sealing surface between sealing member and the light aluminum sheet into the structure (the shape of protruding and recess can be square, triangle-shaped, convex or the combination of above-mentioned shape, the quantity of single shape can be at least 1) compound face (two at least face) structures, and then change utmost point post sealing washer sealing portion region by single planar structure into compound face (two at least face) structures of the bellied structure of having a recess/, through above structural optimization, change the sealing member with between utmost point sealing portion and the light aluminum sheet effective sealing area, change the sealing surface between the sealing member of this realization of sealing member and the light aluminum sheet from the sealing member of this application to the time of multiple sealing member, and the sealing member that the time ratio takes place between the sealing member is improved to the sealing member, and the time of sealing member is then takes place to the multiple sealing member.
Drawings
Fig. 1 is a schematic perspective view of a cell top cover according to the background art of the utility model.
Fig. 2 is a schematic front view of a structure of a cell top cover according to the background art of the utility model.
FIG. 3 is a schematic cross-sectional view A-A of FIG. 2 in accordance with the background of the utility model.
Fig. 4 is a schematic front view of a structure of a top cap of a battery cell according to the present utility model.
Fig. 5 is a schematic perspective view of a seal (a first annular groove, semi-circular arc) according to the present utility model.
Fig. 6 is a schematic vertical cross-section of a seal of the present utility model (a first annular groove, semi-circular arc).
FIG. 7 is a schematic cross-sectional view of A-A of FIG. 4 (a first annular groove, semi-circular arc) in accordance with the present utility model.
Fig. 8 is a schematic perspective view of a seal (a first annular projection) of the present utility model.
Fig. 9 is a schematic vertical cross-section of a seal of the present utility model (a first annular projection).
FIG. 10 is a schematic view of the cross-section A-A of FIG. 4 (a first annular projection) of the present utility model.
Fig. 11 is a schematic perspective view of a seal (two first annular projections) of the present utility model.
Fig. 12 is a schematic view of a seal of the present utility model in vertical section (two first annular projections).
FIG. 13 is a schematic view of the cross-section A-A of FIG. 4 (two first annular projections) of the present utility model.
Fig. 14 is a schematic perspective view of a seal (two first annular grooves) of the present utility model.
Fig. 15 is a schematic view in vertical section of a seal of the present utility model (two first annular grooves).
Figure 16 is a schematic view of the cross-section A-A of figure 4 (two first annular grooves) of the present utility model.
Fig. 17 is a schematic perspective view of a seal (a first annular groove, a first annular projection) of the present utility model.
Fig. 18 is a schematic vertical cross-section of a seal of the present utility model (a first annular groove, a first annular protrusion).
FIG. 19 is a schematic view of the cross-section A-A of FIG. 4 (a first annular groove, a first annular protrusion) of the present utility model.
Fig. 20 is a schematic perspective view of a seal (a first annular groove, rectangle) of the present utility model.
Fig. 21 is a schematic vertical cross-section of a seal of the present utility model (a first annular groove, rectangular shape).
FIG. 22 is a schematic view (stepped) of the cross-section A-A of FIG. 4 of the present utility model.
Fig. 23 is a schematic structural perspective view (stepwise) of a seal of the present utility model.
Fig. 24 is a schematic view (stepwise) of a seal of the present utility model in vertical cross-section.
FIG. 25 is a schematic view (stepped) of the cross-section A-A of FIG. 4 in accordance with the present utility model.
Icon: 1-a first annular seal; 2-a middle hole; 3-a second annular seal; 4-a first annular groove; 5-a second annular boss; 6-a first annular protrusion; 7-a second annular groove; 8-pole; 9-terminal press blocks; 10-a light aluminum sheet; 11-plastic feeding; 13-a base; 14-column; 29-post seal ring.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 4-25, the sealing member according to this embodiment includes a first annular sealing portion 1 disposed in an annular manner, the first annular sealing portion 1 has a middle hole 2, a second annular sealing portion 3 is disposed on the first annular sealing portion 1 in a sealing protruding manner, the middle hole 2 is located inside the second annular sealing portion 3, a first annular groove 4 and/or a first annular protrusion 6 are disposed on the first annular sealing portion 1, and the first annular groove 4 and/or the first annular protrusion 6 are sleeved outside the second annular sealing portion 3.
The sealing member according to this embodiment includes a first annular sealing portion 1 that is disposed annularly, the first annular sealing portion 1 has a middle hole 2, a second annular sealing portion 3 is disposed on the first annular sealing portion 1 in a sealing and protruding manner, the middle hole 2 is located inside the second annular sealing portion 3, that is, the second annular sealing portion 3 is sleeved outside the middle hole 2, and in general, the inner wall of the second annular sealing portion 3 and the hole wall of the middle hole 2 are on the same annular surface.
The sealing member of this embodiment, when using, set up the sealing member of this application between utmost point post 8 and light aluminum sheet 10, first annular seal portion 1 seal set up in base 13 with between the light aluminum sheet 10, second annular seal portion 3 seal set up in cylinder 14 with between the light aluminum sheet 10, through setting up sealed first annular groove 4 and second annular bulge 5 of complex, and/or, sealed first annular bulge 6 and second annular groove 7 of complex, and then effectively increased the effective sealing area between sealing member and the light aluminum sheet 10, change the sealing surface between sealing member and the light aluminum sheet 10 into the compound face structure of having the structure of recess/arch from single planar structure, and then change utmost point post sealing washer sealing portion region into the compound face structure of having the structure of recess/arch from single planar structure, through above structural optimization, change the sealing between utmost point post sealing washer sealing portion and the light aluminum sheet into line face combination formula sealing, realize that the sealing member (be used for replacing the multiple sealing performance of utmost point post sealing washer and light aluminum sheet 10 from the multiple compression ratio that takes place after the time of sealing member and the reduction in the probability of leakage rate of sealing member from the time to the time of sealing member.
In the above scheme, the shapes of the protrusions and the grooves can be square, triangle, arc or a combination of the shapes, the number of the single shapes can be at least 1, and the composite surface structure is a structure of at least two surfaces.
The seal or the first annular seal portion 1 or the second annular seal portion 3 is a plastic or rubber material member having a certain elastic deformability.
Example 2
As shown in fig. 5 and 6, a seal member according to this embodiment is a specific structure of embodiment 1, specifically: the first annular sealing part 1 is provided with a first annular groove 4, and the first annular groove 4 is sleeved outside the second annular sealing part 3.
As shown in fig. 14 and 15, on the basis of the above, it is further preferable that the number of the first annular grooves 4 is at least two, and all the first annular grooves 4 are sleeved in sequence from inside to outside.
As shown in fig. 21 and 22, the cross section of the first annular groove 4 may be in various shapes meeting the sealing requirement, and may be square, rectangular, triangular, circular arc or a combination of the above shapes.
On the basis of the above, it is further preferred that the bottoms of at least two of said first annular grooves 4 are on two different sides.
Example 3
As shown in fig. 8 and 9, a seal member according to the present embodiment is a specific structure of embodiment 1, which is different from embodiment 2 in that: the first annular sealing part 1 is provided with a first annular bulge 6, and the first annular bulge 6 is sleeved outside the second annular sealing part 3.
As shown in fig. 11 and 12, in the above-mentioned manner, when the first annular seal portion 1 is provided with the first annular protrusions 6, there are at least two first annular protrusions 6, and all the first annular protrusions 6 are sleeved in sequence from inside to outside.
The cross section of the first annular protrusion 6 may be square, rectangular, triangular, circular arc or a combination of the above.
On the basis of the above, it is further preferred that the tops of at least two of said first annular projections 6 are on two different faces.
Example 4
As shown in fig. 17 and 18, a seal member according to the present embodiment is a specific structure of embodiment 1, which is different from embodiment 2 or 3 in that: the first annular sealing portion 1 is provided with a first annular groove 4 and a first annular protrusion 6, all the first annular groove 4 and the first annular protrusion 6 are sleeved from inside to outside, that is, the first annular protrusion 6 is arranged outside or in the first annular groove 4, the first annular groove 4 and the first annular protrusion 6 form an inner ring structure and an outer ring structure, on this structure, the first annular groove 4 and the first annular protrusion 6 can be more than one, which comprises at least the following cases:
mode one: all first annular grooves 4 are measured internally and all first annular projections 6 are on the outside;
mode two: all first annular grooves 4 are measured externally and all first annular projections 6 are on the inside;
mode three: the inner side and the outer side of at least one first annular groove 4 are respectively provided with a first annular bulge 6;
mode four: the inner side and the outer side of at least one first annular bulge 6 are respectively provided with a first annular groove 4.
The cross section of the first annular groove 4 may be various shapes meeting the sealing requirement, and may be square, rectangular, triangular, circular arc or a combination of the above shapes.
The cross section of the first annular protrusion 6 may be square, rectangular, triangular, circular arc or a combination of the above.
On the basis of the above, it is further preferred that the bottoms of at least two of said first annular grooves 4 are on two different sides.
On the basis of the above, it is further preferred that the tops of at least two of said first annular projections 6 are on two different faces.
Example 5
As shown in fig. 4-25, a cell top cover according to this embodiment includes a post 8, an aluminum sheet 10, and a seal as described in examples 1 or 2 or 3 or 4, wherein,
the pole 8 comprises a base 13 and a column 14 convexly arranged on the base 13;
a sealing member is used for replacing a pole sealing ring 29, the first annular sealing part 1 is arranged between the base 13 and the light aluminum sheet 10 in a sealing manner, and the second annular sealing part 3 is arranged between the column 14 and the light aluminum sheet 10 in a sealing manner;
the aluminum sheet 10 is sleeved outside the pole 8, and when the first annular sealing part 1 is provided with the first annular groove 4, the aluminum sheet 10 is provided with a second annular protruding part 5 which is in sealing fit with the first annular groove 4; when the first annular protrusion 6 is disposed on the first annular sealing portion 1, the optical aluminum sheet 10 is provided with a second annular groove 7 in sealing engagement with the first annular protrusion 6.
On the basis of the above, in a further preferred manner, the cell top cover of the present embodiment further includes an upper plastic 11, the upper plastic 11 is disposed on the aluminum sheet 10, the upper plastic 11 is sleeved on the outer side of the column 14, and the upper plastic 11 is located above the second annular sealing portion 3.
On the basis of the above, it is further preferable that the top of the second annular sealing portion 3 is in sealing engagement with the upper plastic 11.
As shown in fig. 23 and 24, in a special case where the first annular groove 4 is located at the outer edge of the first annular seal portion 1, the second annular seal portion 3 and the first annular seal portion 1 may be stepped.
The embodiment of the utility model provides a battery core top cover, include utmost point post 8, light aluminum sheet 10 and this application the sealing member, first annular seal portion 1 seal set up in base 13 with between the light aluminum sheet 10, second annular seal portion 3 seal set up in cylinder 14 with between the light aluminum sheet 10, through setting up sealed complex first annular groove 4 and second annular bulge 5, and/or, sealed complex first annular bulge 6 and second annular groove 7, and then effectively increased the effective sealing area between sealing member and the light aluminum sheet 10, change the sealing surface between sealing member and the light aluminum sheet 10 into the compound face structure that has recess/bellied structure by single planar structure, and then change utmost point post sealing washer sealing portion region into the compound face structure that has recess/bellied structure by single planar structure, through above structural optimization, change the sealing between utmost point post sealing washer sealing portion and the light aluminum sheet into line face combination formula sealing, realize this application sealing member (electrode post) multiple sealing area between the sealing member and the light aluminum sheet, reduce the performance of sealing member and the battery core after the time ratio of leakage of sealing member and the battery core 10 takes place, and then the probability of sealing member is long.
The composite surface structure in the scheme is a structure of at least two surfaces.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides a sealing member, its characterized in that includes annular setting's first annular sealing portion (1), first annular sealing portion (1) has intermediate hole (2), sealed protruding second annular sealing portion (3) that are equipped with on first annular sealing portion (1), intermediate hole (2) are located second annular sealing portion (3) inboard, be provided with first annular groove (4) and/or first annular bulge (6) on first annular sealing portion (1), first annular groove (4) and/or first annular bulge (6) cover are established in second annular sealing portion (3) outside.
2. A sealing element according to claim 1, wherein when the first annular sealing portion (1) is provided with at least two first annular grooves (4), all the first annular grooves (4) are sleeved in sequence from inside to outside.
3. A seal according to claim 2, characterized in that the bottoms of at least two of said first annular grooves (4) are on two different faces.
4. A sealing element according to claim 1, wherein when a first annular protrusion (6) is provided on the first annular sealing portion (1), the number of first annular protrusions (6) is at least two, and all the first annular protrusions (6) are sleeved in sequence from inside to outside.
5. A seal according to claim 4, characterized in that the tops of at least two of said first annular projections (6) are on two different faces.
6. A seal according to claim 1, characterized in that when the first annular sealing portion (1) is provided with a first annular groove (4) and a first annular projection (6), all the first annular groove (4) and the first annular projection (6) are externally provided from inside.
7. A seal according to claim 1, characterized in that the cross-section of the first annular groove (4) and/or the first annular projection (6) is square, triangular or semi-circular.
8. A cell cap comprising a post (8), an aluminum sheet (10) and a seal as claimed in any one of claims 1 to 7, wherein,
the pole (8) comprises a base (13) and a column body (14) convexly arranged on the base (13);
the first annular sealing part (1) is arranged between the base (13) and the aluminum sheet (10) in a sealing way, and the second annular sealing part (3) is arranged between the column (14) and the aluminum sheet (10) in a sealing way;
when the first annular sealing part (1) is provided with a first annular groove (4), the aluminum sheet (10) is provided with a second annular protruding part (5) in sealing fit with the first annular groove (4); when the first annular bulge (6) is arranged on the first annular sealing part (1), a second annular groove (7) which is in sealing fit with the first annular bulge (6) is arranged on the light aluminum sheet (10).
9. The cell top cover according to claim 8, further comprising an upper plastic (11), wherein the upper plastic (11) is disposed on the aluminum sheet (10), and the upper plastic (11) is sleeved outside the column (14), and the upper plastic (11) is disposed above the second annular sealing portion (3).
10. A cell cap according to claim 9, wherein the top of the second annular seal (3) is in sealing engagement with the upper plastic (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222636614.1U CN219180644U (en) | 2022-09-28 | 2022-09-28 | Sealing element and battery cell top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222636614.1U CN219180644U (en) | 2022-09-28 | 2022-09-28 | Sealing element and battery cell top cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219180644U true CN219180644U (en) | 2023-06-13 |
Family
ID=86661835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222636614.1U Active CN219180644U (en) | 2022-09-28 | 2022-09-28 | Sealing element and battery cell top cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219180644U (en) |
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2022
- 2022-09-28 CN CN202222636614.1U patent/CN219180644U/en active Active
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