CN211719625U - Power battery top cover and power battery applying same - Google Patents
Power battery top cover and power battery applying same Download PDFInfo
- Publication number
- CN211719625U CN211719625U CN201922480439.XU CN201922480439U CN211719625U CN 211719625 U CN211719625 U CN 211719625U CN 201922480439 U CN201922480439 U CN 201922480439U CN 211719625 U CN211719625 U CN 211719625U
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- ring
- utmost point
- point post
- cover
- power battery
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- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000006978 adaptation Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000012946 outsourcing Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 238000003466 welding Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a power battery top cap and use its power battery belongs to power battery's technical field. The utility model discloses a power battery top cap includes top cap piece and utmost point post, and the both ends of top cap piece set up utmost point post mounting hole respectively, and the top cap piece sets up utmost point post ring in the periphery of every utmost point post mounting hole, and utmost point post installs in utmost point post mounting hole and salient utmost point post ring, and the support ring is established to the below cover that lies in utmost point post in the utmost point post mounting hole, and the support ring is connected with utmost point post mounting hole, sets up the sealing washer between utmost point post and the support ring, sets up the connecting piece between utmost point post and the utmost point post mounting hole, and the connecting piece. The utility model discloses a power battery top cap and use its power battery simple structure, the top cap piece forms through the assembly of solitary each part, and convenient assembling is favorable to improving production efficiency, practices thrift production and rises originally, reduces the production degree of difficulty.
Description
Technical Field
The utility model relates to a power battery's technical field, in particular to power battery top cap and use its power battery.
Background
With the increasingly prominent environmental problems, low-carbon economy has become the mainstream of future economic development. The increasing air situation further promotes the rise of new energy vehicles. Hybrid electric vehicles and pure electric vehicles are also gradually accepted by manufacturers and consumers as representatives of new energy vehicles. The power battery is used as a main power source of the new energy automobile and becomes one of the key parts of the electric automobile. Currently, the top cover of the power battery on the market generally comprises: top cover plate, two mounting holes, positive pole column, negative pole column, positive pole conductive plastic and negative pole insulating plastic, etc. Two mounting holes are formed in the top cover plate, the positive pole column and the negative pole column are arranged in the pole column mounting holes in a penetrating mode, and the positive pole conductive plastic and the negative pole insulating plastic are formed on the positive pole column and the negative pole column respectively in an integrated injection molding mode. This kind of utmost point post rubber coating mode through injection moulding, the production degree of difficulty is great, and the waste product quantity that forms during production is many, and the loss is great.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a power battery top cap and use its power battery is provided, aim at solving among the prior art often adopt integrated into one piece's mode to connect between a plurality of parts of power battery top cap, lead to the production degree of difficulty big, waste product a large amount's technical problem.
For solving the technical problem, the utility model discloses a following technical scheme, power battery top cap, including top cap piece and utmost point post, the both ends of top cap piece set up utmost point post mounting hole respectively, and the top cap piece sets up utmost point post ring in the periphery of every utmost point post mounting hole, and utmost point post installs in utmost point post mounting hole and salient utmost point post ring, and the support ring is established to the below cover that lies in utmost point post in the utmost point post mounting hole, and the support ring is connected with utmost point post mounting hole, sets up the sealing washer between utmost point post and the support ring, sets up the connecting piece between utmost point post and the utmost point post mounting hole, and the connecting piece cover is established. The support piece is used for supporting the sealing ring, the pole and the connecting piece, so that all parts of the power battery top cover are firmly assembled together.
In some embodiments, the utmost point post includes the base, and the base upwards extends and forms first step, and the connecting piece includes first cover that sets up and connects ring, second cover and connect ring and third cover that the internal diameter of first cover, second cover and connect ring and third cover reduces in proper order, and first cover connects the ring lock on the base, and third cover connects the ring lock on first step, makes the inside post of encirclement connecting piece.
In some embodiments, the utmost point post includes the base, and the connecting piece includes first set of ring and the second set of ring of coaxial setting, and the internal diameter of first set of ring is greater than the internal diameter of second set of ring, sets up buckling part along circumference on the periphery wall of second set of ring, and first set of ring lock joint is on the base, and the buckling part lock joint of second set of ring makes the connecting piece outsourcing utmost point post at the top of utmost point post ring.
In some embodiments, an insulating gasket is disposed between the snap and the top of the pole collar. The insulating gasket covers on the top terminal surface of utmost point post ring.
In some embodiments, a pole cap is provided on the pole collar, the pole cap covering the pole collar, the pole cap being connected to the connector, and a top of the pole cap being flush with a top of the connector. The height of the pole cap protruding out of the pole ring of the connecting piece is eliminated, and the pole is wrapped in the top cover sheet.
In some embodiments, the top of the pole cap extends horizontally inward to form a cap cover,
the pole cap is covered on the top of the second sleeving ring of the connecting piece through a cap cover; or,
the cap covers the top of the buckling part.
In some embodiments, the first bushing ring of the connector is provided with a first protrusion and a second protrusion, the base of the post ring and the post is provided with a first groove and a second groove at corresponding positions of the first protrusion and the second protrusion, respectively, and the first protrusion and the second protrusion are respectively matched with the first groove and the second groove; or,
the base of utmost point post ring sum utmost point post sets up first arch and second arch respectively, and the first cup joint ring of connecting piece sets up first recess and second recess in first protruding and the bellied relevant position department of second, first arch and second arch respectively with first recess and second recess looks adaptation.
Through the cooperation of first arch and second arch with first recess and second recess respectively for the connecting piece forms zonulae occludens with utmost point post ring and utmost point post respectively, plays sealed effect.
In some embodiments, the top cover plate is provided with an explosion-proof hole, an explosion-proof valve is arranged in the explosion-proof hole, and the explosion-proof valve comprises an explosion-proof plate and a protective film attached to the explosion-proof plate. When the internal pressure of the power battery rises, the electrolyte in the power battery can break the explosion-proof sheet, so that the heat in the power battery can be effectively released in time, and the explosion of the battery due to overlarge pressure is avoided.
In some embodiments, the post comprises a positive post and a negative post, the connecting member comprises a positive conductive member and a negative insulating member, the positive post is electrically connected to the top cover plate through the positive conductive member, and the negative post is electrically insulated from the top cover plate through the negative insulating member.
The utility model discloses an on the other hand provides a power battery, including the power battery top cap.
Compared with the prior art, the utility model discloses a power battery's of power battery top cap and applied it beneficial effect as follows:
the utility model discloses a power battery top cap and use its power battery simple structure, the top cap piece forms through the assembly of solitary each part, and convenient assembling is favorable to improving production efficiency, practices thrift production and rises originally, reduces the production degree of difficulty.
Drawings
FIG. 1 is a schematic view of a disassembled structure of a first power battery cover according to the present invention;
FIG. 2 is a front view of a first power battery cover according to the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 3;
FIG. 5 is a schematic structural view of a second power battery cover according to the present invention;
fig. 6 is a schematic structural diagram of a third power battery cover according to the present invention;
fig. 7 is a schematic view of a disassembled structure of a fourth power battery cover according to the present invention;
FIG. 8 is a cross-sectional view of FIG. 7 after assembly;
FIG. 9 is an enlarged view of portion C of FIG. 8;
FIG. 10 is a schematic view of a fifth power battery cover according to the present invention;
FIG. 11 is a cross-sectional view of FIG. 10 after assembly;
FIG. 12 is an enlarged view of portion D of FIG. 10;
fig. 13 is a schematic structural view of a sixth power battery cover according to the present invention;
fig. 14 is a schematic structural view of a seventh power battery cover according to the present invention.
The reference number in the drawing indicates that the top cover plate 1, the pole mounting hole 11, the pole ring 12, the pole 2, the positive pole 21, the negative pole 22, the base 23, the electrical connection portion 211, the first step 212, the support ring 3, the seal ring 4, the connecting piece 5, the negative pole insulating piece 51, the positive pole conductive piece 52, the first sleeving ring 511, the second sleeving ring 512, the third sleeving ring 513, the buckling portion 54, the insulating gasket 6, the pole cap 7, the cap 71, the first protrusion 8, the second protrusion 9, the first groove 10, the second groove 13, the explosion-proof hole 14, the explosion-proof valve 15, the explosion-proof sheet 151 and the protective film 152.
Detailed Description
To facilitate understanding of the present invention for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
Fig. 1 to 14 schematically show a power battery top cover according to the present invention.
As shown in fig. 1 to 14, the utility model provides a power battery top cap includes top cap piece 1, and top cap piece 1's both ends set up utmost point post mounting hole 11 respectively, and top cap piece 1 sets up utmost point post ring 12 in every utmost point post mounting hole 11's periphery, and utmost point post ring 12 protrudes utmost point post mounting hole 11 and sets up. The pole 2 is mounted in the pole mounting hole 11 and protrudes out of the pole ring 12. The support ring 3 is sleeved in the pole mounting hole 11, the support ring 3 is located below the pole 2, and the support ring 3 and the pole mounting hole 11 are welded together through laser. A sealing ring 4 is arranged between the support ring 3 and the pole 2. The sealing ring 4 can ensure the sealing performance of the top cover of the power battery. A connecting piece 5 is arranged between the pole 2 and the pole mounting hole 11, and the connecting piece 5 is sleeved outside the pole 2 and is arranged on the support ring 3. The support ring 3 is used for supporting the seal ring 4, the pole post 2 and the connecting piece 5, so that the various parts of the power battery top cover are firmly assembled together. In the present invention, the post 2 includes a positive post 21 and a negative post 22, and the positive post 21 and the negative post 22 are respectively installed in a post mounting hole 11. The connecting member 5 includes a positive electrode conductive member 52 and a negative electrode insulating member 51, the positive electrode post 21 is electrically connected to the top cover sheet 1 through the positive electrode conductive member 52, and the negative electrode post 22 is electrically insulated from the top cover sheet 1 through the negative electrode insulating member 51.
The top cover sheet 1 is provided with a blast hole 14 at a position near the center. An explosion-proof valve 15 is arranged in the explosion-proof hole 14. The explosion-proof valve 15 includes an explosion-proof plate 151 and a protective film 152 attached to the explosion-proof plate 151. When the internal pressure of the power battery rises, the electrolyte in the power battery can break the explosion-proof sheet 151, so that the heat in the power battery can be effectively released in time, and the explosion of the battery due to overlarge pressure is avoided.
Example 1
As shown in fig. 1 to 4, in the present embodiment, the pole post 2 includes a base 23, the base 23 extends upward to form an electrical connection portion 211, and a first step 212 is disposed on the electrical connection portion 211. The connecting piece 5 comprises a first sleeve joint ring 511, a second sleeve joint ring 512 and a third sleeve joint ring 513 which are coaxially arranged from bottom to top in sequence. The first, second and third ferrules 511, 512 and 513 are internally through, the inner diameters of the first, second and third ferrules 511, 512 and 513 are all reduced in sequence, and the outer diameters of the first, second and third ferrules 511, 512 and 513 are also reduced in sequence. The first bushing ring 511 is fastened to the base 23, and the third bushing ring 513 is fastened to the first step 212, so that the connecting member 5 inwardly encloses the pole 2. The pole post ring 12 is provided with a pole post cap 7, and the pole post cap 7 is covered on the pole post ring 12. The top of the pole cap 7 extends horizontally inwards to form a cap cover 71, and the pole cap 7 is covered on the top of the second sleeving ring 512 of the connecting piece 5 through the cap cover 71, so that the pole cap 7 is connected with the connecting piece 5. The connection of the pole cap 7 to the connecting piece 5 can be by laser welding, ultrasonic welding or heat fusion. The top of the pole cap 7 is flush with the top of the connection piece 5. Or, the top of the post cap 7 is flush with the top of the third bushing ring 513, so that the post cap 7 eliminates the height of the connector 5 protruding out of the post ring 12, and wraps the post 2 in the top cover plate 1.
Example 2
As shown in fig. 5, embodiment 2 differs from embodiment 1 only in that: the top of the first sleeve ring 511 of the connecting piece 5 is circumferentially provided with a first protrusion 8 and a second protrusion 9, the first protrusion 8 and the second protrusion 9 are respectively towards the pole ring 12 and the base 23 of the pole 2, and the pole ring 12 and the base 23 of the pole 2 are respectively provided with a first groove 10 and a second groove 13 at the corresponding positions of the first protrusion 8 and the second protrusion 9. First recess 10 and second recess 13 respectively with first protruding 8 and the protruding 9 looks adaptation of second, first protruding 8 and the protruding 9 of second are located first recess 10 and second recess 13 for connecting piece 5 forms zonulae occludens with top cap piece 1 and utmost point post 2 respectively, has guaranteed the leakproofness of power battery top cap.
Example 3
As shown in fig. 6, embodiment 3 differs from embodiment 2 only in that: first arch 8 and second arch 9 in embodiment 2 set up respectively on utmost point post ring 12 and utmost point post 2's base 23, first recess 10 and second recess 13 in embodiment 2 set up on the first set of collar 511 of connecting piece 5, first arch 8 and second arch 9 set up towards the first set of collar 511 of connecting piece 5, first arch 8 and second arch 9 respectively with first recess 10 and second recess 13 looks adaptation, first arch 8 and second arch 9 are located first recess 10 and second recess 13 for connecting piece 5 forms zonulae occludens with top cap piece 1 and utmost point post 2 respectively, the leakproofness of power battery top cap has been guaranteed.
Example 4
As shown in fig. 7 to 9, in the present embodiment, the pole post 2 includes a base 23, and the base 23 extends upward to form an electrical connection portion 211. The connecting element 5 comprises a first and a second coaxially arranged muff- coupling ring 511, 512, the inner diameter of the first muff-coupling ring 511 is larger than the inner diameter of the second muff-coupling ring 512, and the outer diameter of the first muff-coupling ring 511 is also larger than the outer diameter of the second muff-coupling ring 512. The outer circumferential wall of the second socket ring 512 is circumferentially provided with a buckling portion 54, and the buckling portion 54 protrudes outwards along the outer circumferential wall of the second socket ring 512. The first sleeve ring 511 is fastened on the base 23, and the fastening part 54 of the second sleeve ring 512 is fastened on the top of the pole ring 12, so that the connector 5 and the top cover plate 1 are connected together to surround the pole 2. The pole post ring 12 is provided with a pole post cap 7, and the pole post cap 7 is covered on the pole post ring 12. The top of the pole cap 7 extends horizontally inwards to form a cap cover 71, and the pole cap 7 is covered on the top of the buckling part 54 through the cap cover 71, so that the pole cap 7 is connected with the connecting piece 5. The connection of the pole cap 7 to the connecting piece 5 can be by laser welding, ultrasonic welding or heat fusion. The top of the pole cap 7 is flush with the top of the connection piece 5. Or the top of the pole cap 7 is flush with the top of the second sleeving ring 512, so that the pole cap 7 eliminates the height of the connecting piece 5 protruding out of the pole ring 12, and the pole 2 is wrapped in the top cover plate 1.
Example 5
As shown in fig. 10 to 12, in the present embodiment, the pole post 2 includes a base 23, and the base 23 extends upward to form an electrical connection portion 211. The connecting element 5 comprises a first and a second coaxially arranged muff- coupling ring 511, 512, the inner diameter of the first muff-coupling ring 511 is larger than the inner diameter of the second muff-coupling ring 512, and the outer diameter of the first muff-coupling ring 511 is also larger than the outer diameter of the second muff-coupling ring 512. The outer circumferential wall of the second socket ring 512 is circumferentially provided with a buckling portion 54, and the buckling portion 54 protrudes outwards along the outer circumferential wall of the second socket ring 512. The first sleeve ring 511 is fastened on the base 23, and the fastening part 54 of the second sleeve ring 512 is fastened on the top of the pole ring 12, so that the connector 5 and the top cover plate 1 are connected together to surround the pole 2. An insulating gasket 6 is arranged between the buckling part 54 and the top of the pole ring 12. An insulating washer 6 is covered on the top end face of the pole ring 12 for preventing touching the pole ring 12.
Example 6
As shown in fig. 13, the present embodiment is different from embodiment 5 in that:
the top of the first sleeve ring 511 of the connecting piece 5 is circumferentially provided with a first protrusion 8 and a second protrusion 9, the first protrusion 8 and the second protrusion 9 are respectively towards the pole ring 12 and the base 23 of the pole 2, and the pole ring 12 and the base 23 of the pole 2 are respectively provided with a first groove 10 and a second groove 13 at the corresponding positions of the first protrusion 8 and the second protrusion 9. First recess 10 and second recess 13 respectively with first protruding 8 and the protruding 9 looks adaptation of second, first protruding 8 and the protruding 9 of second are located first recess 10 and second recess 13 for connecting piece 5 forms zonulae occludens with top cap piece 1 and utmost point post 2 respectively, has guaranteed the leakproofness of power battery top cap.
Example 7
As shown in fig. 14, the present embodiment is different from embodiment 6 in that: first arch 8 and second arch 9 in embodiment 6 set up respectively on utmost point post ring 12 and utmost point post 2's base 23, first recess 10 and second recess 13 in embodiment 6 set up on the first set of collar 511 of connecting piece 5, first arch 8 and second arch 9 set up towards the first set of collar 511 of connecting piece 5, first arch 8 and second arch 9 respectively with first recess 10 and second recess 13 looks adaptation, first arch 8 and second arch 9 are located first recess 10 and second recess 13 for connecting piece 5 forms zonulae occludens with top cover plate 1 and utmost point post 2 respectively, the leakproofness of power battery top cap has been guaranteed.
Another aspect of the utility model provides a power battery, including the power battery top cap.
The utility model discloses a power battery top cap and use its power battery simple structure, the top cap piece forms through the assembly of solitary each part, and convenient assembling is favorable to improving production efficiency, practices thrift production and rises originally, reduces the production degree of difficulty.
Furthermore, it should be noted that, unless otherwise specified, the terms "first", "second", "third", etc. in the description are only used for distinguishing various components, elements, steps, etc. in the description, and are not used for indicating logical relationships or sequential relationships among the various components, elements, steps, etc. in the description of the present invention, the terms "upper", "lower", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only used for describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (10)
1. Power battery top cap, including top cap piece and utmost point post, the both ends of top cap piece set up utmost point post mounting hole, its characterized in that respectively: the top cap piece is at every the periphery of utmost point post mounting hole sets up utmost point post ring, utmost point post is installed in the utmost point post mounting hole and the protrusion utmost point post ring, utmost point post mounting hole internal bit in the support ring is established to the below cover of utmost point post, the support ring with utmost point post mounting hole connects, utmost point post with set up the sealing washer between the support ring, utmost point post with set up the connecting piece between the utmost point post mounting hole, the connecting piece cover is established the outside of utmost point post, just the connecting piece with the support ring is connected.
2. The power battery top cap of claim 1, wherein: utmost point post includes the base, the base upwards extends and forms first step, the connecting piece includes first cover of coaxial setting and connects ring, second cover and connect ring and third cover and connect the ring, first cover connect the ring the second cover connect the ring with the internal diameter of third cover connects the ring reduces in proper order, first cover connects the ring lock and is in on the base, institute the third cover connects the ring lock and is in on the first step, make the connecting piece inwards wraps utmost point post.
3. The power battery top cap of claim 1, wherein: utmost point post includes the base, the connecting piece includes first cover ring and the second cover ring of coaxial setting, the internal diameter of first cover ring is greater than the internal diameter of second cover ring, set up buckling part along circumference on the periphery wall of second cover ring, first cover ring lock joint is in on the base, the second cover ring buckling part lock joint is in the top of utmost point post ring makes the connecting piece outsourcing utmost point post.
4. The power battery top cap of claim 3, wherein: and an insulating gasket is arranged between the buckling part and the top of the pole column ring.
5. The power battery top cap of claim 3, wherein: the pole column ring is provided with a pole column cap, the pole column cap covers the pole column ring, the pole column cap is connected with the connecting piece, and the top of the pole column cap is flush with the top of the connecting piece.
6. The power battery top cap of claim 5, wherein: the top of the pole cap extends horizontally inwards to form a cap cover,
the pole cap is covered on the top of the second sleeving ring of the connecting piece through the cap cover; or,
the cap covers the top of the buckling part.
7. The power battery top cover of claim 2 or 3, wherein:
the first sleeving ring of the connecting piece is provided with a first bulge and a second bulge, the pole post ring and the base of the pole post are respectively provided with a first groove and a second groove at the corresponding positions of the first bulge and the second bulge, and the first bulge and the second bulge are respectively matched with the first groove and the second groove; or,
the pole column ring with the utmost point post the base sets up first arch and second arch respectively, the connecting piece first cover joint ring is in first arch with the bellied relevant position department of second sets up first recess and second recess, first arch with the second arch respectively with first recess with second recess looks adaptation.
8. The power battery top cap of claim 1, wherein: the explosion-proof valve is characterized in that an explosion-proof hole is formed in the top cover plate, an explosion-proof valve is arranged in the explosion-proof hole, and the explosion-proof valve comprises an explosion-proof plate and a protective film attached to the explosion-proof plate.
9. The power battery top cap of claim 1, wherein: the utmost point post includes anodal post and negative pole post, the connecting piece includes anodal electrically conductive piece and negative pole insulating part, anodal post through anodal electrically conductive piece with the top cap piece electricity is connected, the negative pole post through negative pole insulating part with the top cap piece electricity is insulating.
10. The power battery is characterized in that: comprising the power battery top cover of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480439.XU CN211719625U (en) | 2019-12-31 | 2019-12-31 | Power battery top cover and power battery applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480439.XU CN211719625U (en) | 2019-12-31 | 2019-12-31 | Power battery top cover and power battery applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211719625U true CN211719625U (en) | 2020-10-20 |
Family
ID=72821637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922480439.XU Expired - Fee Related CN211719625U (en) | 2019-12-31 | 2019-12-31 | Power battery top cover and power battery applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211719625U (en) |
-
2019
- 2019-12-31 CN CN201922480439.XU patent/CN211719625U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201020 Termination date: 20201231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |