CN112259928A - Battery top cover structure - Google Patents
Battery top cover structure Download PDFInfo
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- CN112259928A CN112259928A CN202011165433.4A CN202011165433A CN112259928A CN 112259928 A CN112259928 A CN 112259928A CN 202011165433 A CN202011165433 A CN 202011165433A CN 112259928 A CN112259928 A CN 112259928A
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- post
- positive
- mounting hole
- negative
- insulating plastic
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- 229920003023 plastic Polymers 0.000 claims abstract description 87
- 239000004033 plastic Substances 0.000 claims abstract description 87
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000013011 mating Effects 0.000 claims description 8
- 238000005253 cladding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000008093 supporting effect Effects 0.000 description 9
- 238000003466 welding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a battery top cover structure, which comprises: the top cover plate is provided with a positive pole mounting hole, a negative pole mounting hole, a first limiting part surrounding the positive pole mounting hole and a second limiting part surrounding the negative pole mounting hole; the positive pole is suitable for being matched in the positive pole mounting hole, the negative pole is suitable for being matched in the negative pole mounting hole, and third limiting parts are formed on the positive pole and the negative pole; two go up insulating plastic, two go up insulating plastic and locate between positive post and the first spacing portion, between negative pole post and the spacing portion of second respectively, go up insulating plastic towards first spacing portion or one side of the spacing portion of second be formed with first spacing portion or the spacing portion complex of second spacing groove, go up insulating plastic towards one side of the spacing portion of third be formed with the spacing portion complex of third second spacing groove. The battery top cover structure provided by the embodiment of the invention has the advantages of simple structure, convenience in installation, difficulty in micro short circuit and firm assembly of the positive pole and the negative pole.
Description
Technical Field
The invention relates to the field of electronic batteries, in particular to a battery top cover structure.
Background
In the prior art, the positive and negative poles of the battery top cover are generally fixed by riveting connection structures arranged on the upper and lower surfaces of a top cover plate, sealing rings, insulating plastic, ceramics and the like are arranged on the upper and lower surfaces of the top cover plate, so that more components are arranged, more assembly processes are required in batch production, micro short circuits are easily caused, the internal resistance is unstable, the weight is larger, the improvement of the energy density of the battery is not facilitated, and the available space in the battery is influenced by arranging an electrode component below the top cover plate; under complicated working conditions, the electrode is loosened to cause poor contact, and normal power supply is seriously influenced, so that a novel pole-type light-weight high-space-utilization battery top cover is needed to solve the problems.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, one object of the present invention is to provide a battery top cover structure, which has a simple structure, is convenient to install, is not easy to have a micro short circuit, and has firm assembly of positive and negative poles.
The battery top cover structure according to the embodiment of the invention comprises: the top cover plate is provided with a positive pole mounting hole, a negative pole mounting hole, a first limiting part surrounding the positive pole mounting hole and a second limiting part surrounding the negative pole mounting hole; the positive pole is suitable for being matched in the positive pole mounting hole, the negative pole is suitable for being matched in the negative pole mounting hole, and third limiting parts are formed on the positive pole and the negative pole; two go up insulating plastic, two go up insulating plastic and locate respectively between positive post and the first spacing portion the negative pole post with between the spacing portion of second, go up insulating plastic orientation first spacing portion perhaps one side of the spacing portion of second is formed with first spacing portion perhaps the first spacing groove of the spacing portion complex of second, go up insulating plastic orientation one side of the spacing portion of third be formed with the spacing portion complex of third second spacing groove.
According to the battery top cover structure provided by the embodiment of the invention, the upper insulating plastic can be positioned and installed in the negative pole column installation hole through the matching of the second limiting part and the first limiting groove, and further, the negative pole column can be installed in the negative pole column installation hole without a welding mode through the matching of the third limiting part and the second limiting groove. In addition, the assembly structure is not easy to cause the loosening of the positive pole or the negative pole, and the phenomenon of poor contact of the positive pole or the negative pole can be prevented.
In addition, the battery top cover structure according to the invention can also have the following additional technical characteristics:
in some embodiments of the present invention, a first positioning portion is formed on the outer peripheral wall of each of the positive post and the negative post, a second positioning portion is formed on the upper insulating plastic, and the first positioning portion and the second positioning portion are adapted to limit circumferential rotation of the positive post or the negative post when engaged.
In some embodiments of the invention, each of the first limiting portion and the second limiting portion has a first limiting protrusion extending toward the positive post mounting hole or the negative post mounting hole, at least a portion of the first limiting protrusion is adapted to fit in the first limiting groove, and the upper insulating plastic is adapted to cover the first limiting protrusion.
In some embodiments of the present invention, each of the positive and negative electrode posts includes a base portion and a column portion located at an upper end of the base portion, the base portion has a diameter larger than that of the column portion, and the third stopper portion is formed by a portion of the base portion that exceeds the column portion.
In some embodiments of the present invention, the upper insulating plastic comprises: covering portion, connecting portion and joint portion, connecting portion are located the covering portion with between the joint portion, the covering portion the connecting portion with joint portion is in the orientation first spacing groove is injectd to one side of first spacing portion, the covering portion the connecting portion with joint portion is in towards anodal post perhaps the second spacing groove is injectd to one side of negative pole post, wherein, the covering portion is suitable for the cladding first spacing portion.
In some embodiments of the present invention, each of the first and second position-limiting portions has a second position-limiting protrusion extending toward the positive post mounting hole or the negative post mounting hole, an inner side wall of the second position-limiting protrusion abuts against an outer peripheral wall of the clamping portion, and the battery top cover structure further includes: and part of the support bedplate is suitable for being welded on the lower wall surface of the second limit bulge.
In some embodiments of the present invention, the battery top cover structure further includes a sealing ring, the sealing ring is disposed on the inner side of the support platen, the sealing ring includes a horizontal portion and a vertical portion, the horizontal portion is disposed between the support platen and the positive electrode pillar, or the horizontal portion is disposed between the support platen and the negative electrode pillar, and the vertical portion abuts against the inner peripheral wall of the support platen.
In some embodiments of the present invention, the support platen is formed with a plurality of reinforcing ribs, the reinforcing ribs are annular and are uniformly spaced apart in the radial direction of the support platen, or the reinforcing ribs extend in the radial direction of the support platen and are uniformly spaced apart in the circumferential direction of the support platen.
In some embodiments of the present invention, the battery top cover structure further includes a lower insulating plastic, wherein a plurality of positioning bosses are formed on an upper wall surface of the lower insulating plastic, and the lower insulating plastic is suitable for being welded to a lower end of the top cover plate after being rapidly positioned with the top cover plate by the plurality of positioning bosses.
In some embodiments of the present invention, the lower insulating plastic includes a positive post fitting hole, a negative post fitting hole, a first boss surrounding the positive post fitting hole, and a second boss surrounding the negative post fitting hole, the positive post mounting hole is vertically opposite to the first boss, the negative post mounting hole is vertically opposite to the second boss, a lower wall surface of the positive post is suitable for being abutted against or clearance-fitted to an upper wall surface of the first boss, and a lower wall surface of the negative post is suitable for being abutted against or clearance-fitted to an upper wall surface of the second boss.
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
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is an exploded view of a battery top cover structure according to an embodiment of the present invention;
FIG. 2 is a top view of a battery top cap structure according to an embodiment of the present invention;
fig. 3 is a bottom view of a battery top cap structure according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a battery top cover structure according to an embodiment of the present invention;
FIG. 5 is an enlarged view of area A of FIG. 4;
FIG. 6 is a schematic structural diagram of a lower insulating plastic of a battery top cover structure according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the construction of the top cover plate of the battery top cover construction according to an embodiment of the present invention;
FIG. 8 is a top view of a support deck of a battery top cover structure according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view of a support deck of a battery top cover structure according to an embodiment of the present invention;
fig. 10 is an angular structural view of an upper insulating plastic of a battery top cover structure according to an embodiment of the present invention;
fig. 11 is a structural view illustrating another angle of the upper insulating plastic of the battery top cover structure according to the embodiment of the present invention.
Reference numerals:
a battery top cover structure 100,
An upper insulating plastic 3, a covering part 31, a connecting part 32, a clamping part 33,
A support bedplate 4, a reinforcing rib 41,
A sealing ring 5,
The structure comprises a lower insulating plastic 6, a positioning boss 61, a first boss 62, a second boss 63, a positive pole matching hole 64 and a negative pole matching hole 65.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
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; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
A battery top cap structure 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 11.
As shown in fig. 1 to 7, a battery top cap structure 100 according to an embodiment of the present invention includes a top cap plate 1, a positive post 21, a negative post 22, and an upper insulating plastic 3.
Specifically, a positive pole mounting hole 11 and a negative pole mounting hole 12, a first limiting part 111 surrounding the positive pole mounting hole 11 and a second limiting part 121 surrounding the negative pole mounting hole 12 are formed on the top cover plate 1, the positive pole 21 is suitable for being matched in the positive pole mounting hole 11, the negative pole 22 is suitable for being matched in the negative pole mounting hole 12, third limiting parts 20 are formed on the positive pole 21 and the negative pole 22, two upper insulating plastics 3 are provided, the two upper insulating plastics 3 are respectively arranged between the positive pole 21 and the first limiting part 111, between the negative pole 22 and the second position-limiting portion 121, a first position-limiting groove matched with the first position-limiting portion 111 or the second position-limiting portion 121 is formed on one side of the upper insulating plastic 3 facing the first position-limiting portion 111 or the second position-limiting portion 121, and a second position-limiting groove matched with the third position-limiting portion 20 is formed on one side of the upper insulating plastic 3 facing the third position-limiting portion 20.
For example, as shown in fig. 1 to 7, positive post mounting holes 11 and negative post mounting holes 12 are formed in the left-right direction of the top lid plate 1, and the positive posts 21 and the negative posts 22 can be fitted into the positive post mounting holes 11 and the negative post mounting holes 12, respectively. Further, in order to install the positive post 21 and the negative post 22 in the positive post mounting hole 11 and the negative post mounting hole 12 respectively, the first limiting portion 111 and the second limiting portion 121 are formed on the top cover plate 1 by forming the third limiting portions 20 on the positive post 21 and the negative post 22, and the upper insulating plastic 3 is additionally arranged between the first limiting portion 111 and the second limiting portion 121. Since the structure of positive post 21, the manner in which positive post 21 is positioned and mounted in positive post mounting hole 11, and the structure of negative post 22, and the manner in which negative post 22 is positioned and mounted in negative post mounting hole 12 in the present application are substantially the same, the following description will specifically take the structure in which negative post 22 is positioned and mounted in negative post mounting hole 12 as an example.
Specifically, as shown in fig. 1-7, a third limiting portion 20 is formed on the outer circumferential wall of the negative pole 22, a second limiting portion 121 is formed on the inner circumferential wall of the negative pole mounting hole 12, the upper insulating plastic 3 is disposed between the second limiting portion 121 and the third limiting portion 20, more specifically, the upper insulating plastic 3 is annular, a first limiting groove engaged with the second limiting portion 121 is formed on the outer circumferential wall of the upper insulating plastic 3, and a second limiting groove engaged with the third limiting portion 20 is formed on the inner circumferential wall of the upper insulating plastic 3, so that the upper insulating plastic 3 can be positioned and mounted in the negative pole mounting hole 12 by engaging the second limiting portion 121 with the first limiting groove, further, the negative pole 22 can be mounted in the negative pole mounting hole 12 without welding by engaging the third limiting portion 20 with the second limiting groove, and the structure is simple, the operation is convenient, the assembly difficulty can be reduced, and the micro short circuit condition caused by more assembly processes is not easy to occur. In addition, this mounting structure is less likely to cause loosening of positive post 21 or negative post 22, and thus, a contact failure of positive post 21 or negative post 22 can be prevented.
Therefore, according to the battery top cover structure 100 of the embodiment of the invention, the second limiting part 121 is matched with the first limiting groove, the upper insulating plastic 3 can be positioned and installed in the negative pole mounting hole 12, and further, the negative pole 22 can be installed in the negative pole mounting hole 12 without a welding mode through the matching of the third limiting part 20 and the second limiting groove. In addition, this mounting structure is less likely to cause loosening of positive post 21 or negative post 22, and thus, a contact failure of positive post 21 or negative post 22 can be prevented.
In some examples, at least a portion of the positive or negative post 21 or 22 is adapted to be exposed from the upper insulating plastic 3 in the thickness direction of the positive or negative post 21 or 22. Specifically, as shown in fig. 5, the thickness direction of the positive post 21 or the negative post 22 may be the vertical direction shown in fig. 5, the upper insulating plastic 3 is sleeved on the outer circumferential wall of the negative post 22, and the upper surface of the negative post 22 is above the upper surface of the upper insulating plastic 3, which may facilitate the electrical connection of the battery top cover structure 100.
In some embodiments of the present invention, the outer peripheral walls of the positive post 21 and the negative post 22 are each formed with a first positioning portion 112, the upper insulating plastic 3 is formed with a second positioning portion 122 engaged with the first positioning portion 112, and the first positioning portion 112 and the second positioning portion 122 are adapted to limit the circumferential rotation of the positive post 21 or the negative post 22 after being engaged.
In one example as shown in fig. 1, a plurality of vertically extending limiting grooves are formed on the outer peripheral wall of the positive post 21, the plurality of vertically extending limiting grooves are uniformly spaced along the outer peripheral wall of the positive post 21, and thus the plurality of vertically extending limiting grooves form the first positioning portion 112 on the positive post 21, accordingly, a plurality of limiting posts matched with the limiting grooves can be formed on the inner peripheral wall of the upper insulating plastic 3, the plurality of limiting posts are provided, the plurality of limiting portions correspond to the plurality of limiting grooves one to one, and after the plurality of limiting portions are matched with the plurality of limiting grooves correspondingly, the rotation of the positive post 21 in the circumferential direction can be limited, and thus, the relative position of the positive post 21 can be more stable.
Similarly, be formed with a plurality of vertical extension's spacing groove on the periphery wall of negative pole post 22, the even spaced apart setting of periphery wall along negative pole post 22 of a plurality of vertical extension's spacing groove, therefore, a plurality of vertical extension's spacing groove has constituted first location portion 112 on the negative pole post 22, correspondingly, can be formed with on the internal perisporium of last insulating plastic 3 with spacing groove complex spacing post, spacing post is equipped with a plurality ofly, a plurality of spacing portions and a plurality of spacing groove one-to-one, and a plurality of spacing portions correspond the cooperation back with a plurality of spacing groove, can restrict the ascending rotation of circumferential direction of negative pole post 22, therefore, can make the relative position of negative pole post 22 more stable.
In some embodiments of the present invention, each of the first and second position-limiting portions 111 and 121 has a first position-limiting protrusion extending toward the positive post mounting hole 11 or the negative post mounting hole 12, at least a portion of the first position-limiting protrusion is adapted to fit in the first position-limiting groove, and the upper insulating plastic 3 is adapted to cover the first position-limiting protrusion.
For example, as shown in fig. 1 and 5, at the positive post mounting hole 11, the first limiting protrusion extends upward first and then extends toward the center of the positive post mounting hole 11, so that the first limiting protrusion can improve the structural strength of the top cover plate 1 at this location, thereby facilitating the reinforcement of the rigidity of the top cover plate 1 at this location, and improving the compressive strength of the top cover plate 1 at this location. Further, go up insulating plastic 3 and can keep away from the side butt of the centre of a circle one side of positive post mounting hole 11 with first spacing bellied last wall and first spacing arch, in other words, go up insulating plastic 3 and can expose first spacing arch outside regional parcel and live, from this, through the insulating properties of last insulating plastic 3, can improve the creepage distance of positive post 21 to apron 1 to improve the security.
Similarly, at negative pole post mounting hole 12 department, first spacing arch is earlier towards the top and is extended the back, extends towards the centre of a circle direction of negative pole post mounting hole 12 again, and from this, first spacing arch can improve the structural strength of lamina tecti 1 here to be favorable to strengthening the rigidity of lamina tecti 1 here, can improve the compressive strength of lamina tecti 1 here. Further, go up insulating plastic 3 and can keep away from the side butt of the centre of a circle one side of negative pole post mounting hole 12 with first spacing bellied last wall and first spacing arch, in other words, go up insulating plastic 3 and can expose first spacing bellied outside regional parcel and live, from this, through the insulating properties of last insulating plastic 3, can improve the creepage distance of negative pole post 22 to apron 1 to improve the security.
In some embodiments of the present invention, as shown in fig. 1 to 7, each of the positive and negative posts 21 and 22 includes a base portion 211 and a post portion 212 located at an upper end of the base portion 211, the diameter of the base portion 211 is larger than that of the post portion 212, and the third stopper portion 20 is formed by a portion of the base portion 211 that exceeds the post portion 212.
Specifically, the base portion 211 and the first stopper protrusion are disposed opposite to each other in the radial direction.
More specifically, the upper insulating plastic 3 includes: the cover portion 31, the connecting portion 32 and the clamping portion 33, the connecting portion 32 is located between the cover portion 31 and the clamping portion 33, a first limiting groove is defined on one side of the cover portion 31, the connecting portion 32 and the clamping portion 33 facing the first limiting portion 111, a second limiting groove is defined on one side of the cover portion 31, the connecting portion 32 and the clamping portion 33 facing the positive pole column 21 or the negative pole column 22, and the cover portion 31 is suitable for covering the first limiting portion 111. Therefore, the arrangement of the structure of the upper insulating plastic 3 and the arrangement of the structures of the positive pole post 21 and the negative pole post 22 can ensure that the positive pole post 21 or the negative pole post 22 is matched with the second limit groove of the upper insulating plastic 3 to be stable.
Further, after the positive post 21 or the negative post 22 is fitted in the second limiting groove of the upper insulating plastic 3, the upper wall surface of the positive post 21 is higher than the upper wall surface of the covering portion 31 in the vertical direction, and the specific height difference is not limited herein and can be set according to actual requirements.
As for the covering portion 31, in a specific example as shown in fig. 5, the covering portion 31 includes a second horizontal portion and a second vertical portion, a lower wall surface of the horizontal portion abuts against an upper wall surface of the first limiting protrusion and an upper wall surface of the third limiting portion 20 at the same time, and in addition, by abutting against a side surface of the first limiting protrusion on the side away from the center of the positive post mounting hole 11 through the second vertical portion, the upper insulating plastic 3 can be configured to form a form that half surrounds the first limiting protrusion, so that the fit between the upper insulating plastic 3 and the top cover plate 1 is tighter, and thus, the stability performance after the positive post 21 or the negative post 22 is fitted on the upper insulating plastic 3 is more reliable.
Optionally, the first limiting portion 111 and the second limiting portion 121 both have a second limiting protrusion extending toward the positive post mounting hole 11 or the negative post mounting hole 12, an inner side wall of the second limiting protrusion abuts against an outer peripheral wall of the clamping portion 33, and the battery top cover structure 100 further includes: and a support platen 4, wherein part of the support platen 4 is suitable for being welded on the lower wall surface of the second limit projection.
For example, as shown in fig. 5, the lower wall surface of the engaging portion 33 abuts against the upper wall surface of the supporting platen 4, so that after the supporting platen 4 is fixedly connected to the top cover plate 1 by welding, the engaging portion 33, or the upper insulating plastic 3, can be supported well, and further, the upper insulating plastic 3 is supported, so that the positive electrode column 21 or the negative electrode column 22 can be stably supported.
Further, the battery top cover structure 100 further includes a sealing ring 5, the sealing ring 5 is disposed on the inner side of the support platen 4, and the sealing ring 5 includes a first horizontal portion and a first vertical portion, the first horizontal portion is disposed between the support platen 4 and the positive pole 21, or the first horizontal portion is disposed between the support platen 4 and the negative pole 22, wherein the first vertical portion abuts against the inner peripheral wall of the support platen 4.
That is, at the position of the positive post 21, the first horizontal portion is provided between the support platen 4 and the positive post 21, and the first vertical portion abuts against the inner peripheral wall of the support platen 4. At the position of the negative electrode post 22, a first horizontal portion is provided between the support platen 4 and the negative electrode post 22, and a first vertical portion abuts against the inner peripheral wall of the support platen 4. Therefore, the structural arrangement of the L-shaped sealing ring 5 can effectively prevent the short circuit problem caused by metal chips and burrs generated in the processing process of the positive pole post 21 or the negative pole post 22.
In some examples, as shown in fig. 1, 5, and 9, the support platen 4 is formed with a plurality of reinforcing ribs 41, the reinforcing ribs 41 are annular and are provided at regular intervals in the radial direction of the support platen 4, or the reinforcing ribs 41 extend in the radial direction of the support platen 4 and the plurality of reinforcing ribs 41 are provided at regular intervals in the circumferential direction of the support platen 4. Therefore, the reinforcing ribs 41 are arranged on the supporting bedplate 4, so that the rigidity of the supporting bedplate can be improved, and the long-term sealing performance can be guaranteed.
In some embodiments of the present invention, as shown in fig. 1 to 6, the battery top cover structure 100 further includes a lower insulating plastic 6, a plurality of positioning bosses 61 are formed on an upper wall surface of the lower insulating plastic 6, and the lower insulating plastic 6 is suitable for being welded to the lower end of the top cover plate 1 after being rapidly positioned with the top cover plate 1 by the plurality of positioning bosses 61.
For example, as shown in fig. 1 to 6, a plurality of positioning bosses 61 are formed in the circumferential direction of the positive post mounting hole 11, and the connecting lines of the plurality of positioning bosses 61 may form a rectangular shape in the horizontal plane, and similarly, a plurality of positioning bosses 61 are formed in the circumferential direction of the negative post mounting hole 12, and the connecting lines of the plurality of positioning bosses 61 may form a rectangular shape in the horizontal plane. Through a plurality of location bosss 61, can be so that insulating plastic 6 and lamina tecti 1 carry out quick location down.
In some examples, after the lower insulating plastic 6 and the top cover plate 1 are quickly positioned, the lower insulating plastic 6 and the top cover plate 1 can be welded together in an ultrasonic welding mode, optionally, the position of the positioning protrusion can be subjected to ultrasonic welding, and the welding effect is good.
Optionally, the lower insulating plastic 6 includes a positive post fitting hole 64, a negative post fitting hole 65, a first boss 62 surrounding the positive post fitting hole 64, and a second boss 63 surrounding the negative post fitting hole 65, the positive post mounting hole 11 is vertically opposite to the first boss 62, the negative post mounting hole 12 is vertically opposite to the second boss 63, the lower wall surface of the positive post 21 is suitable for being abutted to or clearance-fitted with the upper wall surface of the first boss 62, and the lower wall surface of the negative post 22 is suitable for being abutted to or clearance-fitted with the upper wall surface of the second boss 63.
That is to say, after positive post 21 is installed in positive post mounting hole 11, the lower wall face of positive post 21 is suitable for with the last wall butt of first boss 62 or clearance fit, and after negative pole 22 is installed in negative pole mounting hole 12, the lower wall face of negative pole 22 is suitable for with the last wall butt of second boss 63 or clearance fit, and from this, no matter positive post 21 or negative pole 22, its lower wall face does not exceed the upper surface of insulating plastic 6 down, is favorable to alleviateing top cap weight.
A specific structure of the battery top cap structure 100 according to an embodiment of the present invention will be described below with reference to fig. 1 to 11.
Be formed with anodal post mounting hole 11 and negative pole post mounting hole 12 on the lamina tecti 1 to and encircle first spacing portion 111 of anodal post mounting hole 11 and the spacing portion 121 of second around negative pole post mounting hole 12, first spacing portion 111 and the spacing portion 121 of second all have towards anodal post mounting hole 11 or the first spacing arch of negative pole post mounting hole 12 extension, first spacing bellied at least partly is suitable for the cooperation at first spacing inslot, and go up insulating plastic 3 and be suitable for the first spacing arch of cladding. The first limiting part 111 and the second limiting part 121 are both provided with second limiting protrusions extending towards the positive pole mounting hole 11 or the negative pole mounting hole 12, and the inner side walls of the second limiting protrusions are abutted to the outer peripheral wall of the clamping part 33.
Further, the positive post 21 is suitable for the cooperation in positive post mounting hole 11, negative pole post 22 is suitable for the cooperation in negative pole post mounting hole 12, all be formed with third spacing portion 20 on positive post 21 and the negative pole post 22, two go up insulating plastic 3 and locate respectively between positive post 21 and first spacing portion 111, between negative pole post 22 and the spacing portion 121 of second, go up insulating plastic 3 and be formed with the first spacing groove with first spacing portion 111 or the spacing portion 121 complex of second towards one side of first spacing portion 111 or the spacing portion 121 of second, go up insulating plastic 3 and be formed with the second spacing groove with the spacing portion 20 complex of third towards one side of third spacing portion 20.
The outer peripheral walls of the positive pole post 21 and the negative pole post 22 are both formed with a first positioning portion 112, the upper insulating plastic 3 is formed with a second positioning portion 122 engaged with the first positioning portion 112, and the first positioning portion 112 and the second positioning portion 122 are adapted to limit the circumferential rotation of the positive pole post 21 or the negative pole post 22 after being engaged.
Each of the positive and negative posts 21 and 22 includes a base portion 211 and a column portion 212 located at an upper end of the base portion 211, the base portion 211 has a diameter larger than that of the column portion 212, and the third stopper portion 20 is formed by a portion of the base portion 211 extending beyond the column portion 212.
The upper insulating plastic 3 includes: the cover portion 31, the connecting portion 32 and the clamping portion 33, the connecting portion 32 is located between the cover portion 31 and the clamping portion 33, a first limiting groove is defined on one side of the cover portion 31, the connecting portion 32 and the clamping portion 33 facing the first limiting portion 111, a second limiting groove is defined on one side of the cover portion 31, the connecting portion 32 and the clamping portion 33 facing the positive pole column 21 or the negative pole column 22, and the cover portion 31 is suitable for covering the first limiting portion 111.
The sealing ring 5 is arranged on the inner side of the supporting bedplate 4, the sealing ring 5 comprises a horizontal part and a vertical part, the horizontal part is arranged between the supporting bedplate 4 and the positive pole column 21, or the horizontal part is arranged between the supporting bedplate 4 and the negative pole column 22, the vertical part is abutted against the inner peripheral wall of the supporting bedplate 4, a reinforcing rib 41 is formed on the supporting bedplate 4, and the reinforcing rib 41 is annular.
A plurality of positioning bosses 61 are formed on the upper wall surface of the lower insulating plastic 6, and the lower insulating plastic 6 is suitable for being rapidly positioned and then welded at the lower end of the top cover plate 1 through the plurality of positioning bosses 61 and the top cover plate 1.
Insulating plastic 6 includes positive post mating holes 64 and negative pole post mating holes 65 and the first boss 62 that encircles positive post mating holes 64 down, the second boss 63 that encircles negative pole post mating holes 65, positive post mounting hole 11 and first boss 62 are relative from top to bottom, negative pole post mounting hole 12 and second boss 63 are relative from top to bottom, and the lower wall face of positive post 21 is suitable for upper wall butt or clearance fit with first boss 62, the lower wall face of negative pole post 22 is suitable for upper wall butt or clearance fit with second boss 63.
The length of the lower insulating plastic 6 is basically the same as that of the top cover plate 1, and the width of the lower insulating plastic 6 is basically the same as that of the top cover plate 1. In addition, a positive pole fitting hole 64 and a negative pole fitting hole 65 are formed in the first boss 62 and the second boss 63 of the lower insulating plastic 6, respectively. Further, the diameter of the first boss 62 is smaller than the diameter of the positive post mounting hole 11, and the diameter of the second boss 63 is smaller than the diameter of the negative post mounting hole 12.
From this, according to battery top cap structure 100 of this application, the structure is inseparable, and the quality is lighter, and positive post 21 and negative pole post 22 need not carry out welding operation, and assembly process is less, are difficult for causing little short circuit, and moreover, the internal resistance is comparatively stable, and weight is lighter, can be favorable to promoting the energy density of battery, and top cap piece below does not have electrode subassembly for increase the usable space of battery inside. Further, because the assembly working condition is simple, the positive pole post 21 or the negative pole post 22 is firm, and poor contact is not easy to occur.
Other constructions and operations of the battery top cover structure 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," 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.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery top cap structure, comprising:
the top cover plate is provided with a positive pole mounting hole, a negative pole mounting hole, a first limiting part surrounding the positive pole mounting hole and a second limiting part surrounding the negative pole mounting hole;
the positive pole is suitable for being matched in the positive pole mounting hole, the negative pole is suitable for being matched in the negative pole mounting hole, and third limiting parts are formed on the positive pole and the negative pole;
two go up insulating plastic, two go up insulating plastic and locate respectively between positive post and the first spacing portion the negative pole post with between the spacing portion of second, go up insulating plastic orientation first spacing portion perhaps one side of the spacing portion of second is formed with first spacing portion perhaps the first spacing groove of the spacing portion complex of second, go up insulating plastic orientation one side of the spacing portion of third be formed with the spacing portion complex of third second spacing groove.
2. The battery top cap structure according to claim 1, wherein the peripheral walls of the positive post and the negative post are respectively formed with a first positioning portion, the upper insulating plastic is formed with a second positioning portion matched with the first positioning portion, and the first positioning portion and the second positioning portion are matched to limit circumferential rotation of the positive post or the negative post.
3. The battery top cap structure of claim 1, wherein the first and second limiting portions each have a first limiting protrusion extending toward the positive post mounting hole or the negative post mounting hole, at least a portion of the first limiting protrusion is adapted to fit within the first limiting groove, and the upper insulating plastic is adapted to cover the first limiting protrusion.
4. The battery top cap structure according to claim 1, wherein the positive electrode tab and the negative electrode tab each include a base portion and a post portion located at an upper end of the base portion, the base portion has a diameter larger than that of the post portion, and the third stopper portion is formed by a portion of the base portion that exceeds the post portion.
5. The battery top cap structure of claim 1, wherein the upper insulating plastic comprises:
covering portion, connecting portion and joint portion, connecting portion are located the covering portion with between the joint portion, the covering portion the connecting portion with joint portion is in the orientation first spacing groove is injectd to one side of first spacing portion, the covering portion the connecting portion with joint portion is in towards anodal post perhaps the second spacing groove is injectd to one side of negative pole post, wherein, the covering portion is suitable for the cladding first spacing portion.
6. The battery top cap structure of claim 5, wherein the first limiting portion and the second limiting portion each have a second limiting protrusion extending toward the positive post mounting hole or the negative post mounting hole, an inner side wall of the second limiting protrusion abuts against an outer peripheral wall of the clamping portion, and the battery top cap structure further comprises: and part of the support bedplate is suitable for being welded on the lower wall surface of the second limit bulge.
7. The battery top cap structure of claim 6, further comprising a sealing ring disposed on an inner side of the support platen, wherein the sealing ring comprises a horizontal portion and a vertical portion, wherein the horizontal portion is disposed between the support platen and the positive post or the horizontal portion is disposed between the support platen and the negative post, and wherein the vertical portion abuts against an inner peripheral wall of the support platen.
8. The battery top cover structure according to claim 6, wherein the support platen is formed with a plurality of reinforcing ribs which are annular and are provided at regular intervals in a radial direction of the support platen, or wherein the reinforcing ribs extend in the radial direction of the support platen and are provided at regular intervals in a circumferential direction of the support platen.
9. The battery top cover structure of claim 1, further comprising a lower insulating plastic, wherein a plurality of positioning bosses are formed on an upper wall surface of the lower insulating plastic, and the lower insulating plastic is adapted to be welded to a lower end of the top cover plate after being rapidly positioned with the top cover plate by the plurality of positioning bosses.
10. The battery top cap structure of claim 9, wherein the lower insulating plastic comprises a positive post mating hole, a negative post mating hole, a first boss surrounding the positive post mating hole, and a second boss surrounding the negative post mating hole, the positive post mounting hole is vertically opposite to the first boss, the negative post mounting hole is vertically opposite to the second boss, the lower wall surface of the positive post is suitable for being abutted to the upper wall surface of the first boss or in clearance fit, and the lower wall surface of the negative post is suitable for being abutted to the upper wall surface of the second boss or in clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165433.4A CN112259928A (en) | 2020-10-27 | 2020-10-27 | Battery top cover structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165433.4A CN112259928A (en) | 2020-10-27 | 2020-10-27 | Battery top cover structure |
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| CN112259928A true CN112259928A (en) | 2021-01-22 |
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| CN202011165433.4A Pending CN112259928A (en) | 2020-10-27 | 2020-10-27 | Battery top cover structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166012A1 (en) * | 2021-02-05 | 2022-08-11 | 常州瑞德丰精密技术有限公司 | Top cover assembly and power battery |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428823A (en) * | 2017-08-30 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN108847459A (en) * | 2018-06-04 | 2018-11-20 | 深圳市瑞德丰精密制造有限公司 | The no-welding top cover packaging technology in surface |
| CN208173638U (en) * | 2018-03-21 | 2018-11-30 | 深圳市瑞德丰精密制造有限公司 | A kind of cover board of Anti-fall pole |
| CN208315619U (en) * | 2018-04-23 | 2019-01-01 | 深圳市瑞德丰精密制造有限公司 | A kind of riveting battery cap of Anti-fall |
| CN208352422U (en) * | 2018-04-23 | 2019-01-08 | 深圳市瑞德丰精密制造有限公司 | Stable battery terminal post structure is installed |
| US20190109305A1 (en) * | 2017-10-10 | 2019-04-11 | Contemporary Amperex Technology Co., Limited | Cap assembly for a second battery and second battery |
| CN109768189A (en) * | 2018-12-17 | 2019-05-17 | 蜂巢能源科技有限公司 | Cover plate of power battery |
| CN208889707U (en) * | 2018-10-16 | 2019-05-21 | 东莞百思利新能源科技有限公司 | Secondary cell top cover |
| CN208955032U (en) * | 2018-10-18 | 2019-06-07 | 江苏天钧精密技术有限公司 | A kind of battery cover plate structure |
| CN109860450A (en) * | 2019-03-27 | 2019-06-07 | 东莞天予天正新能源科技有限公司 | A kind of power battery top cover and its assembly method and power battery |
| WO2019151215A1 (en) * | 2018-01-31 | 2019-08-08 | 株式会社Ｇｓユアサ | Power storage element |
| CN110176557A (en) * | 2019-04-09 | 2019-08-27 | 宁德时代新能源科技股份有限公司 | Secondary battery and top cover assembly thereof |
| CN209496906U (en) * | 2019-04-01 | 2019-10-15 | 宁德时代新能源科技股份有限公司 | Cap assembly and secondary cell |
| CN110828718A (en) * | 2018-08-08 | 2020-02-21 | 深圳市瑞德丰精密制造有限公司 | Battery cover plate |
| CN210110855U (en) * | 2019-06-20 | 2020-02-21 | 湖北金泉新材料有限责任公司 | Battery top cap and contain its battery |
| CN111081913A (en) * | 2019-12-31 | 2020-04-28 | 深圳市科达利实业股份有限公司 | Power battery cover plate and manufacturing method thereof |
| CN210535701U (en) * | 2019-09-27 | 2020-05-15 | 东莞百思利新能源科技有限公司 | Secondary battery top cover |
| CN111244342A (en) * | 2020-03-20 | 2020-06-05 | 深圳市科达利实业股份有限公司 | Sealed power battery apron |
| CN210897349U (en) * | 2019-11-12 | 2020-06-30 | 深圳市海瀚新能源技术有限公司 | Top cover assembly, shell and secondary battery |
| CN211529986U (en) * | 2020-03-20 | 2020-09-18 | 深圳市科达利实业股份有限公司 | Power battery cover plate with power-off protection function and power battery |
| US20200411897A1 (en) * | 2018-10-30 | 2020-12-31 | Contemporary Amperex Technology Co., Limited | Top compression plate, secondary battery and method for manufacturing secondary battery |
-
2020
- 2020-10-27 CN CN202011165433.4A patent/CN112259928A/en active Pending
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428823A (en) * | 2017-08-30 | 2018-08-21 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| US20190109305A1 (en) * | 2017-10-10 | 2019-04-11 | Contemporary Amperex Technology Co., Limited | Cap assembly for a second battery and second battery |
| WO2019151215A1 (en) * | 2018-01-31 | 2019-08-08 | 株式会社Ｇｓユアサ | Power storage element |
| CN208173638U (en) * | 2018-03-21 | 2018-11-30 | 深圳市瑞德丰精密制造有限公司 | A kind of cover board of Anti-fall pole |
| CN208352422U (en) * | 2018-04-23 | 2019-01-08 | 深圳市瑞德丰精密制造有限公司 | Stable battery terminal post structure is installed |
| CN208315619U (en) * | 2018-04-23 | 2019-01-01 | 深圳市瑞德丰精密制造有限公司 | A kind of riveting battery cap of Anti-fall |
| CN108847459A (en) * | 2018-06-04 | 2018-11-20 | 深圳市瑞德丰精密制造有限公司 | The no-welding top cover packaging technology in surface |
| CN110828718A (en) * | 2018-08-08 | 2020-02-21 | 深圳市瑞德丰精密制造有限公司 | Battery cover plate |
| CN208889707U (en) * | 2018-10-16 | 2019-05-21 | 东莞百思利新能源科技有限公司 | Secondary cell top cover |
| CN208955032U (en) * | 2018-10-18 | 2019-06-07 | 江苏天钧精密技术有限公司 | A kind of battery cover plate structure |
| US20200411897A1 (en) * | 2018-10-30 | 2020-12-31 | Contemporary Amperex Technology Co., Limited | Top compression plate, secondary battery and method for manufacturing secondary battery |
| CN109768189A (en) * | 2018-12-17 | 2019-05-17 | 蜂巢能源科技有限公司 | Cover plate of power battery |
| CN109860450A (en) * | 2019-03-27 | 2019-06-07 | 东莞天予天正新能源科技有限公司 | A kind of power battery top cover and its assembly method and power battery |
| CN209496906U (en) * | 2019-04-01 | 2019-10-15 | 宁德时代新能源科技股份有限公司 | Cap assembly and secondary cell |
| CN110176557A (en) * | 2019-04-09 | 2019-08-27 | 宁德时代新能源科技股份有限公司 | Secondary battery and top cover assembly thereof |
| EP3723153A1 (en) * | 2019-04-09 | 2020-10-14 | Contemporary Amperex Technology Co., Limited | Secondary battery and top cover component thereof |
| CN210110855U (en) * | 2019-06-20 | 2020-02-21 | 湖北金泉新材料有限责任公司 | Battery top cap and contain its battery |
| CN210535701U (en) * | 2019-09-27 | 2020-05-15 | 东莞百思利新能源科技有限公司 | Secondary battery top cover |
| CN210897349U (en) * | 2019-11-12 | 2020-06-30 | 深圳市海瀚新能源技术有限公司 | Top cover assembly, shell and secondary battery |
| CN111081913A (en) * | 2019-12-31 | 2020-04-28 | 深圳市科达利实业股份有限公司 | Power battery cover plate and manufacturing method thereof |
| CN111244342A (en) * | 2020-03-20 | 2020-06-05 | 深圳市科达利实业股份有限公司 | Sealed power battery apron |
| CN211529986U (en) * | 2020-03-20 | 2020-09-18 | 深圳市科达利实业股份有限公司 | Power battery cover plate with power-off protection function and power battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166012A1 (en) * | 2021-02-05 | 2022-08-11 | 常州瑞德丰精密技术有限公司 | Top cover assembly and power battery |
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