CN110993839A - Power battery top cover and power battery applying same - Google Patents
Power battery top cover and power battery applying same Download PDFInfo
- Publication number
- CN110993839A CN110993839A CN201911412968.4A CN201911412968A CN110993839A CN 110993839 A CN110993839 A CN 110993839A CN 201911412968 A CN201911412968 A CN 201911412968A CN 110993839 A CN110993839 A CN 110993839A
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- Prior art keywords
- ring
- cover
- utmost point
- pole
- power battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/172—Arrangements of electric connectors penetrating the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/183—Sealing members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
Abstract
The invention discloses a power battery top cover and a power battery using the same, and belongs to the technical field of power batteries. The power battery top cover comprises a top cover plate and poles, wherein pole mounting holes are respectively formed in two ends of the top cover plate, a pole ring is arranged on the periphery of each pole mounting hole through the top cover plate, the poles are mounted in the pole mounting holes and protrude out of the pole rings, support rings are sleeved below the poles in the pole mounting holes and are connected with the pole mounting holes, sealing rings are arranged between the poles and the support rings, connecting pieces are arranged between the poles and the pole mounting holes and are sleeved on the outer sides of the poles, and the connecting pieces are connected with the supporting pieces. The power battery top cover and the power battery using the same are simple in structure, the top cover plate is formed by assembling each independent component, the assembly is convenient, the production efficiency is improved, the production cost is saved, and the production difficulty is reduced.
Description
Technical Field
The invention relates to the technical field of power batteries, in particular to a power battery top cover and a power battery using the same.
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.
Disclosure of Invention
The technical problem that this disclosure will solve is to provide a power battery top cap and use its power battery, aims at solving among the prior art often adopts integrated into one piece's mode to connect between a plurality of parts of power battery top cap, leads to the production degree of difficulty big, technical problem that the waste product is in large quantities.
For solving above-mentioned technical problem, this disclosure has adopted following technical scheme, the 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, the top cap piece sets up utmost point post ring in the periphery of every utmost point post mounting hole, utmost point post installs in utmost point post mounting hole and projects utmost point post ring, the support ring is established to the below cover that lies in utmost point post in the utmost point post mounting hole, the support ring is connected with utmost point post mounting hole, set up the sealing washer between utmost point post and the support ring, set up the connecting piece between utmost point post and the utmost point post mounting hole, the outside at utmost point post 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; alternatively, the first and second electrodes may be,
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; alternatively, the first and second electrodes may be,
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.
In another aspect of the present disclosure, a power battery is provided, which includes a power battery top cover.
Compared with the prior art, the beneficial effects of the power battery top cover and the power battery applying the power battery top cover are as follows:
the 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 of the present disclosure;
FIG. 2 is a front view of a first power cell cover of the present disclosure;
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 cell cover according to the present disclosure;
fig. 6 is a schematic structural view of a third power cell cover of the present disclosure;
fig. 7 is a schematic view of a fourth power cell cover according to the present disclosure in a disassembled configuration;
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 disclosure;
FIG. 11 is a cross-sectional view of FIG. 10 after assembly;
FIG. 12 is an enlarged view of portion D of FIG. 11;
fig. 13 is a schematic structural view of a sixth power cell cover according to the present disclosure;
fig. 14 is a schematic structural diagram of a seventh power battery cover of the present disclosure.
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 an understanding of the present disclosure by those skilled in the art, the present disclosure will be described in further detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are intended for purposes of illustration only and are not intended to limit the present disclosure.
Fig. 1-14 schematically illustrate a power cell top cover according to the present disclosure.
As shown in fig. 1 to 14, the power battery top cap in this disclosure includes top cover plate 1, and the both ends of top cover plate 1 set up utmost point post mounting hole 11 respectively, and top cover plate 1 sets up utmost point post ring 12 in the periphery of every utmost point post mounting hole 11, 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 disclosure, 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 mounted in one of the post mounting holes 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 present disclosure provides a power battery including a power battery top cover.
The 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 disclosure, 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 convenience of describing the present disclosure 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 limiting the present disclosure.
What has been described above is merely some embodiments of the present disclosure. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept of the present disclosure, which falls within the scope of the disclosure.
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 support piece connects.
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 cover of claim 2 or 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; alternatively, the first and second electrodes may be,
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; alternatively, the first and second electrodes may be,
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 |
|---|---|---|---|
| CN201911412968.4A CN110993839A (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 |
|---|---|---|---|
| CN201911412968.4A CN110993839A (en) | 2019-12-31 | 2019-12-31 | Power battery top cover and power battery applying same |
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| Publication Number | Publication Date |
|---|---|
| CN110993839A true CN110993839A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911412968.4A Pending CN110993839A (en) | 2019-12-31 | 2019-12-31 | Power battery top cover and power battery applying same |
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| CN (1) | CN110993839A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022012378A1 (en) * | 2020-07-14 | 2022-01-20 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN114284542A (en) * | 2021-12-28 | 2022-04-05 | 山西中科华孚汽车动力研究总院有限公司 | Battery manufacturing method and battery |
| CN115020881A (en) * | 2022-07-15 | 2022-09-06 | 深圳市长盈精密技术股份有限公司 | Power battery top cover |
| CN115084738A (en) * | 2022-07-15 | 2022-09-20 | 深圳市长盈精密技术股份有限公司 | Power battery top cover |
| CN115395151A (en) * | 2022-10-10 | 2022-11-25 | 广东力宏精密科技有限公司 | Battery cover plate, preparation method and battery |
| WO2024012172A1 (en) * | 2022-07-15 | 2024-01-18 | 深圳市长盈精密技术股份有限公司 | Traction battery top cover |
-
2019
- 2019-12-31 CN CN201911412968.4A patent/CN110993839A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022012378A1 (en) * | 2020-07-14 | 2022-01-20 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN114284542A (en) * | 2021-12-28 | 2022-04-05 | 山西中科华孚汽车动力研究总院有限公司 | Battery manufacturing method and battery |
| CN114284542B (en) * | 2021-12-28 | 2024-02-06 | 山西中科华孚电池研究总院有限公司 | Manufacturing method of battery and battery |
| CN115020881A (en) * | 2022-07-15 | 2022-09-06 | 深圳市长盈精密技术股份有限公司 | Power battery top cover |
| CN115084738A (en) * | 2022-07-15 | 2022-09-20 | 深圳市长盈精密技术股份有限公司 | Power battery top cover |
| WO2024012172A1 (en) * | 2022-07-15 | 2024-01-18 | 深圳市长盈精密技术股份有限公司 | Traction battery top cover |
| CN115395151A (en) * | 2022-10-10 | 2022-11-25 | 广东力宏精密科技有限公司 | Battery cover plate, preparation method and battery |
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