CN220856716U - Battery cover plate and battery - Google Patents
Battery cover plate and battery Download PDFInfo
- Publication number
- CN220856716U CN220856716U CN202322050473.XU CN202322050473U CN220856716U CN 220856716 U CN220856716 U CN 220856716U CN 202322050473 U CN202322050473 U CN 202322050473U CN 220856716 U CN220856716 U CN 220856716U
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- Prior art keywords
- cover plate
- pole
- hole
- battery
- plate body
- Prior art date
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- 238000002347 injection Methods 0.000 claims abstract description 58
- 239000007924 injection Substances 0.000 claims abstract description 58
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 238000007789 sealing Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 15
- 238000001746 injection moulding Methods 0.000 abstract description 10
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 description 11
- 239000012212 insulator Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
In order to solve the problems of complex structure, multiple parts and complex processing process flow of the existing battery cover plate, the utility model provides a battery cover plate, which comprises a cover plate body, a pole and an insulating piece, wherein a first through hole is formed in the cover plate body, the pole is embedded into the first through hole, the insulating piece is arranged between the pole and the cover plate body and used for isolating the contact between the pole and the cover plate body, a liquid injection hole is formed in the cover plate body, and the liquid injection hole is communicated with the inside of the battery shell; according to the utility model, the insulating part is filled between the pole and the cover plate body in an injection molding mode, so that the effect of insulation is achieved, the pole and the cover plate body are connected into a whole, the pole and the cover plate body are prevented from being twisted relatively in the using process, the related anti-twisting structure is reduced, the parts and the related processing technological process are saved, and the safety use performance of the battery cover plate is improved.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a battery cover plate and a battery.
Background
With the continuous expansion of new energy industry, lithium ion batteries are widely used as an important component of new energy industry. The square aluminum shell lithium ion battery is widely applied to the fields of power and energy storage batteries because of simple structure, higher energy density and high safety performance. However, the existing battery cover plate has a complex structure, a plurality of parts and a complex processing process flow; therefore, how to overcome the above-mentioned technical problems and drawbacks becomes an important problem to be solved.
Disclosure of utility model
Aiming at the problems of complex structure, multiple parts and complex processing process flow of the existing battery cover plate, the utility model provides a battery cover plate and a battery.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
In one aspect, the utility model provides a battery cover plate for closing a battery housing to form a battery, the battery cover plate comprises a cover plate body, a pole and an insulating member, the cover plate body is provided with a first through hole, the pole is embedded into the first through hole, the insulating member is arranged between the pole and the cover plate body and used for isolating the pole from contacting with the cover plate body, the cover plate body is provided with a liquid injection hole, and the liquid injection hole is communicated with the inside of the battery housing.
Optionally, the thickness of utmost point post is less than 4mm, centers on the utmost point post outside is provided with annular groove, the first end of utmost point post runs through first through-hole just the first end of utmost point post with the second end of utmost point post is located respectively the both sides of first through-hole, the recess is located first through-hole is inboard.
Optionally, the insulating piece includes first insulating piece, second insulating piece and third insulating piece, first insulating piece the second insulating piece with the third insulating piece is cyclic annular structure, first insulating piece the second insulating piece with third insulating piece integrated into one piece, first insulating piece with the third insulating piece is located respectively the both ends of second insulating piece, just first insulating piece with the external diameter of third insulating piece is all greater than the external diameter of second insulating piece.
Optionally, the first insulating member is disposed on at least a part of the surface of the first end of the pole protruding from the first through hole and covers a part of the surface of the first end of the cover body; the second insulating piece is arranged in the groove, and between the outer side of the pole and the inner side of the first through hole so as to isolate the contact between the pole and the first through hole; the third insulating piece is arranged outside the second end of the pole protruding out of the first through hole and covers part of the surface of the second end of the cover plate body, and one side, close to the liquid injection hole, of the first insulating piece and the third insulating piece is not contacted with two ends of the liquid injection hole.
Optionally, the liquid injection hole is communicated with two sides of the cover plate body, and the side wall of the liquid injection hole is of an inverted conical structure.
Optionally, the device further comprises a cone sealing plug, wherein the cone sealing plug is embedded into the liquid injection hole to seal the liquid injection hole.
Optionally, the device further comprises a ball sealing plug, wherein the ball sealing plug is embedded into the liquid injection hole to seal the liquid injection hole.
Optionally, a single battery cover plate is provided with a single pole, a single insulator, a single first through hole and a single liquid injection hole.
Optionally, two or more than two poles, two or more than two insulating pieces, two or more than two first through holes and one or two liquid injection holes are arranged on the single battery cover plate, and the two or more than two poles, the two or more than two insulating pieces, the two or more than two first through holes are arranged in a one-to-one correspondence.
In another aspect, the utility model provides a battery comprising the battery cover plate.
Compared with the prior art, the battery cover plate provided by the utility model has the following main effects:
(1) According to the utility model, the insulation piece is arranged in the first through hole, so that the pole and the cover plate body are isolated, the contact between the pole and the cover plate body is avoided, and the technical effect of insulation is achieved on the pole and the cover plate body;
(2) The insulating piece is filled between the pole and the cover plate body in an injection molding mode, the pole and the cover plate body are connected into a whole, the pole and the cover plate body are prevented from being twisted relatively in the using process, and the related anti-twisting structure is reduced;
(3) The arrangement of the insulating part not only has the technical effect of insulating the polar post and the cover plate body, but also connects the polar post and the cover plate body into a whole to have the technical effect of anti-torsion structure, so that the arrangement of the insulating part reduces the use of the insulating part and/or the anti-torsion structure, and the battery cover plate has the advantages of simple structure, few adopted parts, simple processing method, low processing cost, saving parts and related processing technological processes and good use effect;
(4) The two-side epitaxial structure of the cover plate body can be bonded with the battery shell in a welding sealing manner, so that the tightness and safety of the battery are ensured, and the safety use performance of the battery cover plate is improved.
Drawings
Fig. 1 is a schematic structural view of a battery cover plate according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a battery cover plate according to an embodiment of the present utility model;
FIG. 3 is a schematic top view of a battery cover plate according to an embodiment of the present utility model;
FIG. 4 is a first cross-sectional schematic view of A-A of FIG. 3;
FIG. 5 is a second cross-sectional schematic view of A-A of FIG. 3;
Fig. 6 is a schematic structural view of a battery cover plate according to another embodiment of the present utility model;
fig. 7 is a schematic structural view of a battery cover plate according to still another embodiment of the present utility model;
reference numerals in the drawings of the specification are as follows:
1-a cover plate body; 11-a first through hole; 12-a liquid injection hole; 13-cone sealing plugs; 14-ball sealing plug; 2-pole; 21-grooves; 3-an insulator; 31-a first insulating member; 32-a second insulator; 33-third insulation.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "side", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-3, in one embodiment, the present utility model provides a battery cover for closing a battery case to form a battery, the battery cover includes a cover body 1, a pole 2, and an insulating member 3, a first through hole 11 is provided on the cover body 1, the pole 2 is embedded in the first through hole 11, the insulating member 3 is disposed between the pole 2 and the cover body 1 to isolate the contact between the pole 2 and the cover body 1, a liquid injection hole 12 is provided on the cover body 1, and the liquid injection hole 12 communicates with the inside of the battery case.
In some embodiments, the insulator 3 is disposed in the first through hole 11 to isolate the pole 2 from the cover plate body 1, so as to avoid contact, and the insulator 3 of the present utility model is filled between the pole 2 and the cover plate body 1 in an injection molding manner, so that not only is an isolating and insulating effect achieved, but also the pole 2 and the cover plate body 1 are connected into a whole, so that the pole 2 and the cover plate body 1 are prevented from being twisted relatively during use, the related anti-twisting structure is reduced, and components and related processing technological processes are saved, thereby improving the safe use performance of the battery cover plate.
In an embodiment, the thickness direction of the battery cell is taken as the width direction of the cover plate body 1, and the width direction of the battery cell is taken as the length direction of the cover plate body 1; taking the length direction of the battery cell as the thickness direction of the cover plate body 1; the width of the cover plate body 1 is 0.5-100mm, and the length of the cover plate body 1 is 20-500mm; the thickness of the cover plate body 1 is 2-20mm;
In a preferred embodiment, the width of the cover plate body 1 is 3-50mm, and the length of the cover plate body 1 is 20-250mm; the thickness of the cover plate body 1 is 3-10mm;
Further, along the length direction of the cover plate body 1, the width of the cover plate body 1 of the utility model gradually decreases from the middle to the two ends; since the cover body 1 is welded to the battery case, the welded seal line is to be transferred from the cover body 1 to the battery case. Through setting the width of apron body 1 to the shape that reduces gradually from the centre to both ends, be favorable to the sealed realization of transition region like this, the both sides epitaxial structure of apron body can pass through the sealed laminating of welding with the battery case, guarantees the leakproofness and the security of battery to the safe performance of battery apron has been improved.
As shown in fig. 2, in an embodiment, the thickness of the pole 2 is less than 4mm, an annular groove 21 is disposed around the outside of the pole 2, the first end of the pole 2 penetrates through the first through hole 11, the first end of the pole 2 and the second end of the pole 2 are respectively located at two sides of the first through hole 11, and the groove 21 is located inside the first through hole 11.
Specifically, the thickness of the pole 2 is less than 4mm, so that it is inconvenient to provide the injection hole 23 on the pole 2, and therefore, it is convenient to provide the injection hole 12 on the cover plate body 1, and electrolyte is injected through the injection hole 23.
Specifically, the annular groove 21 is arranged outside the pole 2, the annular groove 21 has the effect of increasing the strength of the pole 2, and by arranging the annular groove 21 outside the pole 2, under the action of external force, the external force can act in the groove 21 instead of acting on the insulating member 3, so that the insulating member 3 is protected.
Further, the direction along the battery cover plate to the battery shell is the thickness direction of the pole column 2, the thickness of the pole column 2 is greater than the depth of the first through hole 11, when the battery cover plate is installed, the pole column 2 penetrates through the first through hole 11, the first end of the pole column 2 and the second end of the pole column 2 are respectively located at two sides of the first through hole 11, the outer wall of the pole column 2 is conveniently connected with the upper surface, the lower surface and the inner wall of the first through hole 11 of the cover plate body 1 respectively through the insulating piece 3, so that the contact area of the insulating piece 3 with the pole column 2 and the cover plate body 1 is increased, the connection strength of the pole column 2 and the cover plate body 1 is improved, the pole column 2 and the cover plate body 1 are connected into a whole, relative torsion of the pole column 2 and the cover plate body 1 is avoided in the using process, the relative torsion preventing structure is reduced, parts and relative processing processes are saved, and the safe use performance of the battery cover plate is improved.
As shown in fig. 2, in an embodiment, the insulating member 3 includes a first insulating member 31, a second insulating member 32, and a third insulating member 33, where the first insulating member 31, the second insulating member 32, and the third insulating member 33 are all in a ring structure, the first insulating member 31, the second insulating member 32, and the third insulating member 33 are integrally formed, the first insulating member 31 and the third insulating member 33 are respectively located at two ends of the second insulating member 32, and outer diameters of the first insulating member 31 and the third insulating member 33 are larger than outer diameters of the second insulating member 32.
In some embodiments, the insulating member 3 is selected from PPS material, PBT material, PPA material, and the like.
In some preferred embodiments, the insulating member 3 is selected from PPS materials. The PPS material has good heat resistance, excellent electrical property, excellent mechanical property and good flame retardant property; and the insulating member 3 made of PPS material has good dimensional stability.
As shown in fig. 2, in an embodiment, the first insulating member 31 is disposed on at least a part of the surface of the first end of the pole 2 protruding from the first through hole 11 and covers a part of the surface of the first end of the cover body 1, and the first end of the first insulating member 31 and the first end of the pole 2 are located on the same surface; the second insulating member 32 is disposed in the recess 21 between the outside of the pole 2 and the inside of the first through hole 11 to insulate the contact between the pole 2 and the first through hole 11; the third insulating member 33 is disposed outside the second end of the pole 2 protruding from the first through hole 11 and covers part of the surface of the second end of the cover plate body 1, and one side of the first insulating member 31 and the third insulating member 33, which is close to the liquid injection hole 12, is not in contact with both ends of the liquid injection hole 12.
Specifically, the first insulating member 31 is injection molded outside the first end of the pole 2 protruding out of the first through hole 11 in an injection molding manner, where the injection molding range is that the surface of the first end of the cover plate body 1 is injection molded, and one side of the first insulating member 31, which is close to the injection hole 12, is a linear type; one side of the first insulating member 31 away from the liquid injection hole 12 is arc-shaped; in this range, the surface of the first end of the cover body 1 is injection-molded.
As shown in fig. 1, in an embodiment, the thickness of the first insulating member 31 is equal to the length of the pole 2 protruding from the first end of the first through hole 11; the first end of the first insulating member 31 is located on the same surface as the first end of the pole 2.
As shown in fig. 6, in an embodiment, the thickness of the first insulating member 31 is smaller than the length of the pole 2 protruding from the first end of the first through hole 11; the first end of the first insulating member 31 is lower than the first end of the pole 2, and the first end of the pole 2 protrudes from the first end of the first insulating member 31.
Specifically, the second insulating member 32 fills the gap between the outer side of the pole 2 and the inner side of the first through hole 11 by injection molding, so that the pole 2 and the cover body 1 are connected into a whole.
Further, the second insulating member 32 performs injection molding in the groove 21, and the contact area of the injection molding is increased by the groove 21, so that the bonding performance between the outer side of the pole 2 and the inner side of the first through hole 11 is improved, and the pole 2 and the cover plate body 1 are prevented from being twisted relatively in the using process, so that the related anti-twisting structure is reduced, the components and the related processing technological process are saved, and the safety use performance of the battery cover plate is improved.
Specifically, the third insulating member 33 is injection molded outside the portion of the pole 2 protruding out of the second end of the first through hole 11 in an injection molding manner and extends outward along the outer periphery of the second end of the cover plate body 1, so as to mold the surface of the second end of the cover plate body 1, and the thickness of the third insulating member 33 molded on the surface of the second end of the cover plate body 1 is greater than the thickness of the first insulating member 31 molded on the surface of the cover plate body 1.
Further, the thickness of the third insulating member 33 is smaller than the length of the second end of the pole 2 protruding from the first through hole 11; the second end of the third insulating member 33 is higher than the second end of the pole 2, the second end of the pole 2 protrudes out of the second end of the third insulating member 33, a welding area is arranged at the second end of the pole 2, and the second end of the pole 2 is connected with the battery case in a sealing welding manner.
Specifically, the sealing welding mode includes, but is not limited to, welding modes including laser welding, electromagnetic pulse welding, resistance welding, electron beam welding and the like.
Through setting up first insulating part 31, second insulating part 32 with third insulating part 33 makes utmost point post 2 with apron body 1 connects as a whole, avoids utmost point post 2 in the in-process of using with apron body 1 takes place to twist reverse relatively, has reduced relevant anti-torsion structure, has saved part and relevant processing technology flow to the safe performance of battery apron has been improved.
As shown in fig. 4-5, in an embodiment, the liquid injection hole 12 is communicated with two sides of the cover plate body 1, the side wall of the liquid injection hole 12 is in an inverted conical structure, the liquid injection hole 12 is in an inverted conical shape, so that liquid can be conveniently injected into the battery through the liquid injection hole 12, the diameter of the lower end of the liquid injection hole 12 is small, and impurities are prevented from entering the battery through the liquid injection hole 12 in the liquid injection process.
As shown in fig. 4, in an embodiment, the device further includes a cone sealing plug 13, where the cone sealing plug 13 is embedded in the liquid injection hole 12 to seal the liquid injection hole 12.
Specifically, the liquid injection hole 12 is in an inverted cone shape, and the cone sealing plug 13 is selected to seal the liquid injection hole 12, so that a good sealing effect is achieved.
As shown in fig. 5, in an embodiment, the device further includes a ball sealing plug 14, and the ball sealing plug 14 is embedded in the liquid injection hole 12 to seal the liquid injection hole 12.
Specifically, the liquid injection hole 12 is in an inverted cone shape, the ball sealing plug 14 is selected to seal the liquid injection hole 12, and the surface of the ball sealing plug 14 is in an annular bulge so as to increase the limit area at the second end of the liquid injection hole 12, thereby reducing the possibility that the sealing plug is separated from the liquid injection hole 12 to the first end of the cover plate, and achieving a good sealing effect.
As shown in fig. 1, in an embodiment, a single battery cover plate is provided with a single pole 2, a single insulator 3, a single first through hole 11, and a single pouring hole 12.
Specifically, a single battery is provided with two battery cover plates, the two battery cover plates are respectively arranged at two ends of the battery shell, the battery cover plates at two ends are respectively provided with a pole post 2 which is respectively used as an anode and a cathode, and at the moment, a single first through hole 11 is positioned in the middle of the cover plate body 1; thereby assembling the cover plate body 1, the pole 2 and the insulating member 3 in sequence, wherein the single liquid injection hole 12 is positioned at one side of the cover plate body 1 and is not contacted with the insulating member 3, so that the battery cover plate is formed.
As shown in fig. 7, in an embodiment, two or more of the posts 2, two or more of the insulators 3, two or more of the first through holes 11, and one or more of the liquid injection holes 12 are disposed on a single battery cover plate, and the two or more of the posts 2, two or more of the insulators 3, two or more of the first through holes 11 are disposed in one-to-one correspondence.
Specifically, the battery housing is a semi-closed housing with an opening at one end, the battery cover plate seals the opening at one end of the battery housing, the left and right sides of the battery cover plate are respectively provided with a pole post 2 which is respectively used as an anode and a cathode, at this time, the first through holes 11 are positioned at the left and right sides of the cover plate body 1, so that the pole post 2 and the insulating piece 3 are assembled in sequence; the middle parts of the cover plate bodies 1 are respectively provided with a liquid injection hole 12 to form the battery cover plate; or the two sides of the cover plate body 1 are provided with liquid injection holes 12 to form the battery cover plate.
In another aspect, the utility model provides a battery comprising the battery cover plate.
In one embodiment, as shown in fig. 1, the battery case is a semi-closed case with one end open, and the battery cover assembly closes the one end open of the battery case.
In another embodiment, as shown in fig. 7, the battery case is a cylindrical case with two open ends, the number of the battery cover plates is two, and the two battery cover plates respectively close the two open ends of the battery case.
In some embodiments, the battery housing is a square housing, a cylindrical housing, a prismatic housing, or other irregular housing.
Compared with the prior art, the battery cover plate provided by the utility model has the following main effects:
(1) According to the utility model, the insulation piece 3 is arranged in the first through hole 11 of the cover plate body 1, so that the pole 2 is isolated from the cover plate body 1, the contact between the pole 2 and the cover plate body 1 is avoided, and the technical effect of insulation is achieved on the pole 2 and the cover plate body 1;
(2) The insulator 3 is filled between the pole 2 and the cover plate body 1 in an injection molding mode, the pole 2 and the cover plate body 1 are connected into a whole, the pole 2 and the cover plate body 1 are prevented from being twisted relatively in the using process, and the related anti-twisting structure is reduced;
(3) The arrangement of the insulating part 3 not only has the technical effect of insulating the pole 2 and the cover plate body 1, but also connects the pole 2 and the cover plate body 1 into a whole to have the technical effect of a torsion-preventing structure, so that the arrangement of the insulating part 3 reduces the use of the insulating part and/or the torsion-preventing structure, and the battery cover plate has the advantages of simple structure, few adopted parts, simple processing method, low processing cost, saving parts and related processing technological processes and good use effect;
(4) The two sides of the cover plate body 1 are of an epitaxial structure, can be bonded with the battery shell in a sealing manner through welding, and ensures the tightness and safety of the battery, so that the safety use performance of the battery cover plate is improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A battery cover plate, characterized in that: the battery cover plate is used for sealing the battery shell to form a battery, the battery cover plate comprises a cover plate body, a pole and an insulating piece, a first through hole is formed in the cover plate body, the pole is embedded into the first through hole, the insulating piece is arranged between the pole and the cover plate body and used for isolating the pole from being contacted with the cover plate body, a liquid injection hole is formed in the cover plate body, and the liquid injection hole is communicated with the inside of the battery shell.
2. The battery cover plate according to claim 1, wherein: the thickness of utmost point post is less than 4mm, centers on the utmost point post outside is provided with annular groove, the first end of utmost point post runs through first through-hole just the first end of utmost point post with the second end of utmost point post is located respectively the both sides of first through-hole, the recess is located first through-hole is inboard.
3. The battery cover plate according to claim 2, wherein: the insulating part comprises a first insulating part, a second insulating part and a third insulating part, wherein the first insulating part, the second insulating part and the third insulating part are of annular structures, the first insulating part, the second insulating part and the third insulating part are integrally formed, the first insulating part and the third insulating part are respectively located at two ends of the second insulating part, and the outer diameters of the first insulating part and the third insulating part are both larger than the outer diameter of the second insulating part.
4. A battery cover plate according to claim 3, wherein: the first insulating piece is arranged on at least part of the surface of the first end of the pole protruding out of the first through hole and covers part of the surface of the first end of the cover plate body; the second insulating piece is arranged in the groove, and between the outer side of the pole and the inner side of the first through hole so as to isolate the contact between the pole and the first through hole; the third insulating piece is arranged outside the second end of the pole protruding out of the first through hole and covers part of the surface of the second end of the cover plate body, and one side, close to the liquid injection hole, of the first insulating piece and the third insulating piece is not contacted with two ends of the liquid injection hole.
5. The battery cover plate according to claim 2, wherein: the liquid injection hole is communicated with two sides of the cover plate body, and the side wall of the liquid injection hole is of an inverted conical structure.
6. The battery cover plate according to claim 1, wherein: still include the cone sealing plug, the cone sealing plug embedding annotate in the liquid hole to annotate the liquid hole is sealed.
7. The battery cover plate according to claim 1, wherein: the device also comprises a ball sealing plug, wherein the ball sealing plug is embedded into the liquid injection hole to seal the liquid injection hole.
8. The battery cover plate according to claim 1, wherein: and a single pole, a single insulating piece, a single first through hole and a single liquid injection hole are arranged on the single battery cover plate.
9. The battery cover plate according to claim 1, wherein: the battery cover plate is provided with two or more than two poles, two or more than two insulating pieces, two or more than two first through holes and one or two liquid injection holes, and the two or more than two poles, the two or more than two insulating pieces and the two or more than two first through holes are arranged in a one-to-one correspondence mode.
10. A battery, characterized in that: a battery cover plate comprising the battery of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322050473.XU CN220856716U (en) | 2023-08-01 | 2023-08-01 | Battery cover plate and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322050473.XU CN220856716U (en) | 2023-08-01 | 2023-08-01 | Battery cover plate and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220856716U true CN220856716U (en) | 2024-04-26 |
Family
ID=90739344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322050473.XU Active CN220856716U (en) | 2023-08-01 | 2023-08-01 | Battery cover plate and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220856716U (en) |
-
2023
- 2023-08-01 CN CN202322050473.XU patent/CN220856716U/en active Active
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