CN114824589A - Battery cover plate and battery - Google Patents
Battery cover plate and battery Download PDFInfo
- Publication number
- CN114824589A CN114824589A CN202210495202.2A CN202210495202A CN114824589A CN 114824589 A CN114824589 A CN 114824589A CN 202210495202 A CN202210495202 A CN 202210495202A CN 114824589 A CN114824589 A CN 114824589A
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- China
- Prior art keywords
- cover plate
- convex ring
- pole column
- pole
- battery cover
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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
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
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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
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
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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
- H01M50/184—Sealing members characterised by their shape or structure
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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
- H01M50/186—Sealing members characterised by the disposition of the sealing members
- H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
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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
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
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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
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
Abstract
The invention discloses a battery cover plate and a battery, wherein the battery cover plate comprises a top cover plate, a pole column piece and an upper plastic piece, wherein the top cover plate is provided with a pole column hole and a pressing flanging arranged around the pole column hole, the top wall of the pressing flanging is provided with an anti-rotation notch, the pole column piece is arranged in the pole column hole in a penetrating way, the outer peripheral wall of the pole column piece is provided with an anti-rotation plane, the upper plastic piece is provided with a first convex ring and a second convex ring, the first convex ring is abutted against the outer side wall of the bent pressing flanging, the second convex ring is clamped between the bent pressing flanging and the pole column piece, and the outer side wall of the second convex ring is provided with an anti-rotation bulge matched with the anti-rotation notch. The anti-rotation performance of the pole column piece of the battery cover plate is good, the phenomenon that the pole column piece rotates relative to the top cover plate can be well avoided, the follow-up welding process is facilitated, and the manufacturing yield of the battery cover plate is improved.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery cover plate and a battery.
Background
In the process of assembling the battery cover plate, the rotation prevention of the pole is very important, and if the pole can rotate relative to the top cover plate after the installation is finished, the normal use of the battery can be influenced by the subsequent welding process. The rotation prevention of the pole in the prior art is usually realized through the compression fit of an upper plastic part or a sealing part, and the rotation prevention effect of the tight fit structure is not good.
Disclosure of Invention
The first objective of the present invention is to provide a battery cover plate, which has a better anti-rotation performance of a pole column member, can better avoid the phenomenon that the pole column member rotates relative to a top cover plate, facilitates a subsequent welding process, and improves the manufacturing yield of the battery cover plate.
The second objective of the present invention is to provide a battery, which has a better anti-rotation performance of a pole column member and a higher reliability in use.
In order to achieve the technical effects, the technical scheme of the invention is as follows:
the invention discloses a battery cover plate, comprising: the top cover plate is provided with a pole column hole and a pressing flanging arranged around the pole column hole, and the top wall of the pressing flanging is provided with an anti-rotation notch; the pole column piece penetrates through the pole column hole, and an anti-rotation plane is arranged on the outer peripheral wall of the pole column piece; go up the plastic part, upward be equipped with first bulge loop and second bulge loop on the plastic part, first bulge loop ends to after bending on the turn-ups's of pressfitting lateral wall, the second bulge loop presss from both sides and is established after bending the pressfitting turn-ups with between the utmost point post spare, be equipped with on the lateral wall of second bulge loop with prevent changeing breach complex and prevent changeing the arch.
In some embodiments, the anti-rotation notches are arranged at intervals along the circumferential direction of the pole column hole, the anti-rotation protrusions are arranged at intervals, and the anti-rotation notches and the anti-rotation protrusions are arranged in a one-to-one correspondence manner.
In some embodiments, the rotation-preventing plane is a plurality of planes, and the plurality of planes are arranged at intervals along the circumferential direction of the pole piece.
In some embodiments, the inside wall of the pole column hole has a supporting convex ring extending towards the radial inner side, the pole piece includes a pole column body and a pole column plate, the outer circumferential wall of the pole column body abuts against the inner circumferential wall of the second convex ring, the battery cover plate further includes an insulating sealing element, the insulating sealing element is sleeved on the pole column plate, and the outer wall of the insulating sealing element abuts against the bent pressing flange, the inside wall of the pole column hole, the end face of the supporting convex ring and the inner circumferential wall of the supporting convex ring.
In some specific embodiments, the insulating seal comprises a first seal and a second seal removably connected to the post, wherein: the first sealing element is matched between the folded pressing flange and the supporting convex ring, and the second sealing element is matched between the supporting convex ring and the pole column plate.
In some more specific embodiments, the first sealing element includes a first sealing convex ring and a second sealing convex ring that are arranged at an interval, the first sealing convex ring is sandwiched between the folded press-fit flange and the upper surface of the pole column plate, and the second sealing convex ring is sandwiched between the lower surface of the pole column plate and the support convex ring.
In some optional embodiments, the outer wall of the second convex ring is provided with an extension convex ring extending towards the radial outer side of the second convex ring, and the extension convex ring is positioned between the first sealing convex ring and the upper surface of the pole column plate.
In some specific embodiments, the second seal member includes a flat portion and an insertion portion connected, the insertion portion being fitted in the central hole of the support collar, the flat portion being stopped against an upper surface of the support collar.
In some more specific embodiments, the flat portion is provided with a pressing groove surrounding the insertion portion, and the support collar is provided with a pressing collar fitted in the pressing groove.
The invention also discloses a battery, which comprises a shell, the battery cover plate and the battery core, wherein one end of the shell is arranged in an open mode, the battery cover plate is buckled at the open end of the shell, the battery core is arranged in the shell, and a lug of the battery core is electrically connected with the pole piece of the battery cover plate.
The battery cover plate has the beneficial effects that: because the pressfitting turn-ups of top cap piece and last plastic part between restrict the relative rotation of the two through the cooperation of preventing changeing protruding and preventing changeing the breach, and utmost point post spare and last plastic part pass through the relative rotation of the two of the plane restriction that prevents changeing on the utmost point post spare, promoted utmost point post spare prevent changeing the performance, can avoid the relative top cap piece pivoted phenomenon of utmost point post spare to take place betterly, make things convenient for follow-up welding process, promote the manufacturing yield of battery apron.
The battery has the beneficial effects that the battery cover plate is arranged, so that the rotation prevention performance of the pole column piece of the battery is good, and the use reliability is high.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a battery cover plate according to an embodiment of the present invention;
fig. 2 is a partial structural sectional view of a battery cover plate according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the top cover sheet according to the embodiment of the present invention when the pressing flange is not pressed;
fig. 4 is a schematic structural diagram of a plastic part according to an embodiment of the present invention.
Reference numerals:
1. a top cover sheet; 11. a pole hole; 111. a supporting convex ring; 1111. pressing the convex ring; 12. pressing and flanging; 121. an anti-rotation notch;
2. a pole piece; 21. a pole body; 22. a pole plate;
3. applying a plastic part; 31. a first convex ring; 32. a second convex ring; 321. an anti-rotation protrusion; 322. an extension convex ring;
41. a first seal member; 411. a first sealing convex ring; 412. a second sealing convex ring; 42. a second seal member; 421. a planar portion; 4211. a pressing groove; 422. an insertion portion.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The specific structure of the battery cap plate according to the embodiment of the present invention will be described with reference to fig. 1 to 4.
The invention discloses a battery cover plate, as shown in fig. 1-2, the battery cover plate of the embodiment comprises a top cover plate 1, a pole column member 2 and an upper plastic member 3, wherein the top cover plate 1 is provided with a pole column hole 11 and a pressing flanging 12 arranged around the pole column hole 11, the top wall of the pressing flanging 12 is provided with an anti-rotation notch 121, the pole column member 2 is arranged in the pole column hole 11 in a penetrating manner, the outer peripheral wall of the pole column member 2 is provided with an anti-rotation plane, the upper plastic member 3 is provided with a first convex ring 31 and a second convex ring 32, the first convex ring 31 abuts against the outer side wall of the bent pressing flanging 12, the second convex ring 32 is clamped between the bent pressing flanging 12 and the pole column member 2, and the outer side wall of the second convex ring 32 is provided with an anti-rotation protrusion 321 matched with the anti-rotation notch 121.
It can be understood that, in the assembling process, put into top cap piece 1 back with utmost point post spare 2, bend pressfitting turn-ups 12 now, then will go up plastic part 3 and put into utmost point post hole 11, place and carry out the pressfitting after accomplishing, and in the pressfitting in-process, the protruding 321 that prevents changeing on the pressfitting turn-ups 12 can with last plastic part 3 prevent changeing breach 121 cooperation, prevent changeing protruding 321 and prevent changeing the cooperation of breach 121 and limit the relative rotation of last plastic part 3 relative top cap piece 1 after accomplishing, meanwhile, because utmost point post spare 2 and last plastic part 3 restrict the relative rotation of the two through preventing changeing the plane on utmost point post spare 2, the ability of preventing changeing of utmost point post spare 2 has been promoted, can avoid the relative pivoted phenomenon of top cap piece 1 of utmost point post spare 2 to take place betterly, make things convenient for follow-up welding process, promote the manufacturing yield of battery cover board.
In some embodiments, as shown in fig. 3, there are a plurality of anti-rotation notches 121, a plurality of anti-rotation notches 121 are arranged at intervals along the circumferential direction of the pole hole 11, a plurality of anti-rotation protrusions 321 are arranged, and the plurality of anti-rotation notches 121 and the plurality of anti-rotation protrusions 321 are arranged in a one-to-one correspondence manner. It can be understood that the anti-rotation notches 121 and the anti-rotation protrusions 321 are a plurality of protrusions capable of further improving the matching stability of the upper plastic part 3 and the pressing flange 12, so as to further improve the anti-rotation property of the upper plastic part 3. It should be additionally noted that, in other embodiments of the present invention, the specific types of the anti-rotation notches 121 and the anti-rotation protrusions 321 can be selected according to actual needs, and the shapes and the numbers of the anti-rotation notches 121 and the anti-rotation protrusions 321 are not selected herein.
In some embodiments, the rotation-preventing plane is a plurality of planes, and the plurality of planes are arranged at intervals along the circumferential direction of the pole piece 2. It can be understood that, prevent changeing the plane and be a plurality of, can make the cross section of utmost point post spare 2 be a polygon like this, 3 covers after the cover is established on utmost point post spare 2 to last plastic part 3 and utmost point post spare 2 between the stability of being connected just can promote better to promote utmost point post spare 2 prevent changeing the characteristic.
In some embodiments, as shown in fig. 2, the inner sidewall of the pole hole 11 has a supporting convex ring 111 extending toward the radial inner side, the pole piece 2 includes a pole body 21 and a pole plate 22, the outer circumferential wall of the pole body 21 abuts against the inner circumferential wall of the second convex ring 32, the battery cover plate includes an insulating sealing member, the insulating sealing member is sleeved on the pole plate 22, and the outer wall of the insulating sealing member abuts against the folded press-fit flange 12, the inner sidewall of the pole hole 11, the end face of the supporting convex ring 111 and the inner circumferential wall of the supporting convex ring 111. It can be understood that, in order to ensure that the battery can stably work, the top cover plate 1 must be completely insulated from the pole post member 2, and the insulating seal added in this embodiment can ensure insulation between the bottom wall of the pole post plate 22 and the support convex ring 111, and can ensure insulation between the peripheral wall of the pole post plate 22 and the inner peripheral wall of the pole post hole 11, thereby ensuring connection stability and connection sealability of the top cover plate 1 and the pole post member 2.
In some specific embodiments, as shown in fig. 2, the insulating seal comprises a first seal 41 and a second seal 42 removably attached to the pole piece 2. The first seal 41 is fitted between the folded press-fit flange 12 and the support collar 111, and the second seal 42 is fitted between the support collar 111 and the pole plate 22. It can be understood that the pole piece 2 and the insulating sealing element can be detachably connected and can be conveniently assembled without adopting complex modes such as rubber coating and the like to fix the insulating sealing element on the pole piece 2. Because the boss on the pole column member 2 is more, in this embodiment, it can make things convenient for insulating seal's installation to be first sealing member 41 and second sealing member 42 with the insulating seal split to promote battery cover plate's packaging efficiency.
In some more specific embodiments, as shown in fig. 2, the first sealing element 41 includes a first sealing convex ring 411 and a second sealing convex ring 412 which are arranged at intervals, the first sealing convex ring 411 is sandwiched between the folded press-fit flange 12 and the upper surface of the pole plate 22, and the second sealing convex ring 412 is sandwiched between the lower surface of the pole plate 22 and the supporting convex ring 111. It can be understood that the first sealing protrusion 411 ensures the insulating property between the press-fit flange 12 and the upper surface of the terminal plate 22, and the second sealing protrusion 412 ensures the insulating property between the lower surface of the terminal plate 22 and the support protrusion 111, thereby ensuring that the entire terminal member 2 is completely insulated from the top cover plate 1, and ensuring the reliability of the battery cover plate. In addition, the first sealing convex ring 411 and the second sealing convex ring 412 are formed on the first sealing member 41, and the first sealing member 41 can be sleeved on the pole column plate 22 in the installation process, so that the first sealing member 41 can be assembled conveniently, and the assembly efficiency of the battery cover plate is improved.
In some alternative embodiments, as shown in fig. 2 and 4, the outer wall of the second protruding ring 32 is provided with an extending protruding ring 322 extending toward the radial outer side thereof, and the extending protruding ring 322 is located between the first sealing protruding ring 411 and the upper surface of the pole plate 22. It can be understood that the extension convex ring 322 that adds can be with the whole packings that exist of the gap that probably exists between first sealing member 41 and the utmost point post spare 2 to promote the connection leakproofness between utmost point post spare 2 and the top cap piece 1, avoid the outside air to pass the battery apron, promoted the practical reliability of battery.
In some specific embodiments, as shown in fig. 2, the second sealing member 42 includes a flat portion 421 and an insertion portion 422 connected, the insertion portion 422 is fitted in the central hole of the support convex ring 111, and the flat portion 421 abuts against the upper surface of the support convex ring 111. It is understood that the flat portion 421 can ensure the insulation property between the support convex ring 111 and the lower surface of the pole plate 22, and the insertion portion 422 can avoid the accidental contact between the lower surface of the pole plate 22 and the inner peripheral wall of the pole hole 11, i.e., the second seal 42 ensures the insulation property between the pole plate 22 and the top cover plate 1, thereby improving the reliability of the battery cover plate.
In some more specific embodiments, the flat portion 421 is provided with a pressing groove 4211 surrounding the insertion portion 422, and the support collar 111 is provided with a pressing collar 1111 capable of extending into the pressing groove 4211. It can be understood that, according to the foregoing description, the upper plastic component 3 and the folded pressing flange 12 need to be pressed in the assembling process, and the pressing convex ring 1111 can extend into the pressing groove 4211, so that in the pressing process, the second sealing element 42 can be deformed well, so as to fill the gap between the pole column plate 22 and the supporting convex ring 111, and improve the connection sealing performance of the pole column plate 22 and the top cover plate 1 while ensuring the insulation characteristics of the two.
Example (b):
a battery cover plate according to an embodiment of the present invention will be described with reference to fig. 1 to 4.
As shown in fig. 1-4, the battery cover plate of the present embodiment includes a top cover plate 1, a pole post member 2, an upper plastic member 3 and an insulating sealing member, the top cover plate 1 is provided with a pole post hole 11 and a press-fit flange 12 surrounding the pole post hole 11, the inner side wall of the pole post hole 11 is provided with a support convex ring 111 extending toward the radial inner side, and the support convex ring 111 is provided with a press-fit convex ring 1111 extending along the circumferential direction thereof. The top wall of the pressing flange 12 is provided with a plurality of anti-rotation notches 121 which are distributed along the circumferential direction at intervals. The pole piece 2 is inserted into the pole hole 11 and located above the support collar 111. Utmost point post 2 includes utmost point post body 21 and utmost point post board 22, and be equipped with a plurality of planes of preventing changeing that set up along its circumference interval on the periphery wall of utmost point post 2, upward be equipped with first bulge loop 31 and second bulge loop 32 on the plastic part 3, first bulge loop 31 ends on the lateral wall of the pressfitting turn-ups 12 after bending, second bulge loop 32 presss from both sides and establishes between pressfitting turn-ups 12 after bending and utmost point post board 22, be equipped with on the lateral wall of second bulge loop 32 with prevent changeing breach 121 complex prevent changeing protruding 321 and towards its radial outside extension bulge loop 322. The lower surface of the extended collar 322 abuts on the upper surface of the pole plate 22. The insulating sealing element comprises a first sealing element 41 and a second sealing element 42 which are detachably connected with the pole column element 2, the first sealing element 41 is matched between the bent pressing flanging 12 and the supporting convex ring 111, the first sealing element 41 comprises a first sealing convex ring 411 and a second sealing convex ring 412 which are arranged at intervals, the first sealing convex ring 411 is clamped between the bent pressing flanging 12 and the extending convex ring 322, and the second sealing convex ring 412 is clamped between the lower surface of the pole column plate 22 and the supporting convex ring 111. The second sealing member 42 is fitted between the support protruding ring 111 and the pole plate 22, the second sealing member 42 includes a planar portion 421 and an insertion portion 422 connected to each other, the insertion portion 422 is fitted in the central hole of the support protruding ring 111, the planar portion 421 abuts against the upper surface of the support protruding ring 111, a press-fit groove 4211 is provided on the planar portion 421, the press-fit groove 4211 is provided around the insertion portion 422, and the press-fit groove 4211 can be fitted with the press-fit protruding ring 1111.
The advantages of the battery cover plate of the embodiment are as follows:
firstly, the method comprises the following steps: the relative rotation between the press-fit flanging 12 and the upper plastic part 3 is limited through the matching of the anti-rotation protrusions 321 and the anti-rotation notches 121, the relative rotation between the pole column part 2 and the upper plastic part 3 is limited through the anti-rotation planes on the pole column part 2, the anti-rotation performance of the pole column part 2 is improved, the phenomenon that the pole column part 2 rotates relative to the top cover plate 1 can be well avoided, the subsequent welding process is facilitated, and the manufacturing yield of the battery cover plate is improved;
secondly, the method comprises the following steps: the insulating seal is removable with respect to the pole post 2, facilitating assembly, and during pressing, the first seal 41 and the second seal 42 are able to deform respectively, ensuring insulation and sealing between the pole post 2 and the top cover sheet 1.
The invention also discloses a battery, which comprises a shell, the battery cover plate and the battery core, wherein one end of the shell is opened, the battery cover plate is buckled at the opened end of the shell, the battery core is arranged in the shell, and the polar ear of the battery core is electrically connected with the polar post component 2 of the battery cover plate.
The battery of the invention has the battery cover plate, so the anti-rotation performance of the pole piece 2 of the battery is better, and the use reliability is higher.
In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. A battery cover plate, comprising:
the anti-rotation device comprises a top cover plate (1), wherein a pole column hole (11) and a pressing flanging (12) arranged around the pole column hole (11) are formed in the top cover plate (1), and an anti-rotation notch (121) is formed in the top wall of the pressing flanging (12);
the pole column piece (2) penetrates through the pole column hole (11), and an anti-rotation plane is arranged on the outer peripheral wall of the pole column piece (2);
go up plastic part (3), it is equipped with first bulge loop (31) and second bulge loop (32) to go up plastic part (3), first bulge loop (31) end to support after bending on the lateral wall of pressfitting turn-ups (12), second bulge loop (32) press from both sides and establish after bending pressfitting turn-ups (12) with between utmost point post spare (2), be equipped with on the lateral wall of second bulge loop (32) with prevent changeing breach (121) complex and prevent changeing protruding (321).
2. The battery cover plate according to claim 1, wherein the anti-rotation notches (121) are plural, the plural anti-rotation notches (121) are arranged at intervals along the circumferential direction of the pole hole (11), the plural anti-rotation protrusions (321) are plural, and the plural anti-rotation notches (121) and the plural anti-rotation protrusions (321) are arranged in a one-to-one correspondence manner.
3. The battery cover plate according to claim 1, wherein the rotation-preventing planes are plural and are arranged at intervals in the circumferential direction of the pole piece (2).
4. The battery cover plate according to any one of claims 1 to 3, wherein the inner side wall of the pole column hole (11) is provided with a support convex ring (111) extending towards the radial inner side, the pole column member (2) comprises a pole column body (21) and a pole column plate (22), the outer circumferential wall of the pole column body (21) abuts against the inner circumferential wall of the second convex ring (32), the battery cover plate further comprises an insulating sealing member, the insulating sealing member is sleeved on the pole column plate (22), and the outer wall of the insulating sealing member abuts against the bent press-fit flange (12), the inner side wall of the pole column hole (11), the end face of the support convex ring (111) and the inner circumferential wall of the support convex ring (111).
5. The battery cover plate according to claim 4, wherein the insulating seal comprises a first seal (41) and a second seal (42) detachably connected to the pole piece (2), wherein:
the first sealing element (41) is matched between the folded pressing flanging (12) and the supporting convex ring (111), and the second sealing element (42) is matched between the supporting convex ring (111) and the pole column plate (22).
6. The battery cover plate according to claim 5, wherein the first sealing element (41) comprises a first sealing convex ring (411) and a second sealing convex ring (412) which are arranged at intervals, the first sealing convex ring (411) is clamped between the folded pressing flanging (12) and the upper surface of the pole column plate (22), and the second sealing convex ring (412) is clamped between the lower surface of the pole column plate (22) and the supporting convex ring (111).
7. The battery cover plate according to claim 6, wherein an extension convex ring (322) extending toward a radially outer side of the second convex ring (32) is provided on an outer wall of the second convex ring, and the extension convex ring (322) is located between the first sealing convex ring (411) and an upper surface of the pole plate (22).
8. The battery cover plate according to claim 5, wherein the second seal member (42) comprises a flat portion (421) and an insertion portion (422) connected, the insertion portion (422) being fitted in a central hole of the support collar (111), the flat portion (421) being stopped against an upper surface of the support collar (111).
9. The battery cover plate according to claim 8, wherein the flat portion (421) is provided with a press-fit groove (4211) provided around the insertion portion (422), and the support collar (111) is provided with a press-fit collar (1111) fitted in the press-fit groove (4211).
10. A battery, characterized by comprising a casing, a battery cover plate according to any one of claims 1-9, and a battery core, wherein one end of the casing is open, the battery cover plate is fastened to the open end of the casing, the battery core is arranged in the casing, and a tab of the battery core is electrically connected with a pole piece (2) of the battery cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210495202.2A CN114824589A (en) | 2022-05-07 | 2022-05-07 | Battery cover plate and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210495202.2A CN114824589A (en) | 2022-05-07 | 2022-05-07 | Battery cover plate and battery |
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| Publication Number | Publication Date |
|---|---|
| CN114824589A true CN114824589A (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210495202.2A Pending CN114824589A (en) | 2022-05-07 | 2022-05-07 | Battery cover plate and battery |
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| CN (1) | CN114824589A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115347287A (en) * | 2022-09-02 | 2022-11-15 | 宁夏宝丰昱能科技有限公司 | Battery top cover, battery and battery manufacturing method |
| CN115498332A (en) * | 2022-10-10 | 2022-12-20 | 中天储能科技有限公司 | Cover plate assembly and energy storage device |
| CN116780062A (en) * | 2023-07-05 | 2023-09-19 | 深圳市长盈精密技术股份有限公司 | Battery top cover, assembling method and power battery |
| WO2024050757A1 (en) * | 2022-09-08 | 2024-03-14 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and electric device |
-
2022
- 2022-05-07 CN CN202210495202.2A patent/CN114824589A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115347287A (en) * | 2022-09-02 | 2022-11-15 | 宁夏宝丰昱能科技有限公司 | Battery top cover, battery and battery manufacturing method |
| CN115347287B (en) * | 2022-09-02 | 2023-11-10 | 宁夏宝丰昱能科技有限公司 | Battery top cover, battery and battery manufacturing method |
| WO2024050757A1 (en) * | 2022-09-08 | 2024-03-14 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and electric device |
| CN115498332A (en) * | 2022-10-10 | 2022-12-20 | 中天储能科技有限公司 | Cover plate assembly and energy storage device |
| CN115498332B (en) * | 2022-10-10 | 2024-03-26 | 中天储能科技有限公司 | Cover plate assembly and energy storage device |
| CN116780062A (en) * | 2023-07-05 | 2023-09-19 | 深圳市长盈精密技术股份有限公司 | Battery top cover, assembling method and power battery |
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