CN219677502U - Battery connection structure, battery shell and power battery - Google Patents
Battery connection structure, battery shell and power battery Download PDFInfo
- Publication number
- CN219677502U CN219677502U CN202320964398.5U CN202320964398U CN219677502U CN 219677502 U CN219677502 U CN 219677502U CN 202320964398 U CN202320964398 U CN 202320964398U CN 219677502 U CN219677502 U CN 219677502U
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- split
- cantilever
- battery
- winding core
- connection
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- 238000004804 winding Methods 0.000 claims abstract description 39
- 239000012943 hotmelt Substances 0.000 claims description 21
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 4
- 239000004831 Hot glue Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery connecting structure, a battery shell and a power battery, wherein the battery connecting structure comprises a first split part and a second split part which is used for being connected with a top cover, and the first split part is connected with the second split part; the first split part is provided with a first cantilever part and a second cantilever part, the first cantilever part and the second cantilever part extend along the direction far away from the second split part, and a winding core fixing station is arranged between the first cantilever part and the second cantilever part. The first cantilever part and the second cantilever part on the first split part are used for limiting the winding core in the horizontal direction, and then the first split part is connected with the second split part arranged on the top cover, so that the winding core is limited by the first split part, the second split part and the top cover in the vertical direction, the winding core is prevented from deviating inside the power battery, the internal interference of the power battery is avoided, and the safety performance of the power battery is improved on the premise that the electric performance of the power battery is not influenced.
Description
Technical Field
The present utility model relates to the field of battery structures, and particularly to a battery connection structure, a battery housing, and a power battery.
Background
In recent years, with the increase of the market share of new energy automobiles, the market of power batteries is expanding continuously, the development of industry requires that the power batteries have better performance, and higher requirements are put on the safety of the power batteries. In the actual use of the power battery, the situation that the position of the power battery is not completely fixed, namely, the situation of shaking exists is found; it can be understood that after the power battery is affected by external vibration and other factors, the winding core inside the power battery is easy to deviate, so that parts inside the power battery interfere with each other, and the safety performance of the power battery is reduced.
Therefore, there is a need to design a new power cell to overcome the negative effects of core deflection without changing the electrical performance.
Disclosure of Invention
The utility model aims to provide a battery connecting structure, a battery shell and a power battery, which are used for solving the technical problem that the current power battery is difficult to overcome the problem that a winding core is easy to deviate on the premise of not influencing the electrical performance.
To achieve the purpose, the utility model adopts the following technical scheme:
a battery connecting structure, comprising a first split part and a second split part for connecting with a top cover, wherein the first split part is connected with the second split part;
the first split part is provided with a first cantilever part and a second cantilever part, the first cantilever part and the second cantilever part extend along the direction far away from the second split part, and a winding core fixing station is arranged between the first cantilever part and the second cantilever part.
Optionally, a first connection part is arranged on one side of the first split part facing the second split part, and a second connection part is arranged on one side of the second split part facing the first split part; the first connecting portion is connected with the second connecting portion.
Optionally, the first connection part comprises a first hot melt hole arranged on the first split part, and the second connection part comprises a second hot melt hole arranged on the second split part; the first hot melt holes are in butt joint with the second hot melt holes to form a hot melt groove, and hot melt glue is filled in the hot melt groove.
Optionally, the first connection portion includes a buckle disposed on the first split portion, and the second connection portion includes a slot disposed on the second split portion; the buckle is connected with the clamping groove in a clamping way.
Optionally, the number of the first cantilever portions and the number of the second cantilever portions are one, and the first cantilever portions and the second cantilever portions are disposed opposite to each other.
Optionally, the first cantilever part is rotatably connected with the first split part, and the first cantilever part can rotate along a direction away from the winding core fixing station; and/or the second cantilever part is rotatably connected with the first split part, and the second cantilever part can rotate along the direction away from the winding core fixing station.
Optionally, a hollow groove is formed in the first split part and/or the second split part.
A battery housing comprising a housing, a top cover and a battery connecting structure as described above; the shell is provided with a mounting groove, the top cover is in sealing connection with a notch of the mounting groove, and the battery connecting structure is arranged on one side of the top cover, which faces the mounting groove.
The power battery comprises the battery shell, wherein the winding core is arranged at the winding core fixing station, and the winding core is clamped between the first cantilever part and the second cantilever part.
Optionally, the winding core is a winding core or a lamination core.
Compared with the prior art, the utility model has the following beneficial effects:
according to the battery connecting structure, the battery shell and the power battery, the first cantilever part and the second cantilever part on the first split part are used for limiting the winding core in the horizontal direction, and then the first split part is connected with the second split part arranged on the top cover, so that the winding core is limited by the first split part, the second split part and the top cover in the vertical direction, the winding core is prevented from being deviated in the power battery, the internal interference of the power battery is further avoided, and the safety performance of the power battery is improved on the premise that the electric performance of the power battery is not influenced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the utility model, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the utility model, without affecting the effect or achievement of the objective.
Fig. 1 is a schematic diagram of the overall structure of a battery connection structure according to an embodiment of the present utility model;
fig. 2 is a schematic side view of a battery connection structure according to an embodiment of the present utility model.
Illustration of: 10. a first split part; 11. a first cantilever portion; 12. a second cantilever portion; 20. a second split part; 21. a second connecting portion; 22. an avoidance port; 30. and (5) winding the core.
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 2, fig. 1 is a schematic overall structure of a battery connection structure according to an embodiment of the present utility model, and fig. 2 is a schematic side view of the battery connection structure according to the embodiment of the present utility model.
Example 1
The battery connection structure provided by the embodiment is applied to a power battery, is used for connecting a top cover and a winding core, and ensures that the position of the winding core is not easy to deviate under the premise of not influencing the electric performance of the power battery by optimizing the structure.
As shown in fig. 1 and 2, the battery connection structure of the present embodiment includes a first split portion 10 and a second split portion 20 for connecting with a top cover, that is, the battery connection structure adopts a split design, and the first split portion 10 is connected with the second split portion 20 to form a battery connection structure, where a avoidance port 22 is formed on the first split portion 10 and the second split portion 20 corresponding to a pole position on a winding core; meanwhile, as shown in fig. 2, the first split portion 10 is provided with a first cantilever portion 11 and a second cantilever portion 12, the first cantilever portion 11 and the second cantilever portion 12 extend along a direction away from the second split portion 20, and a core fixing station is arranged between the first cantilever portion 11 and the second cantilever portion 12 and is used for placing the core 30, so that the core 30 can be limited, that is, a distance between the first cantilever portion 11 and the second cantilever portion 12 is matched with a width of the core.
Specifically, the first cantilever part 11 and the second cantilever part 12 on the first split part 10 are used for limiting the winding core 30 in the horizontal direction, then the first split part 10 is connected with the second split part 20 arranged on the top cover, so that the winding core 30 is limited by the first split part 10, the second split part 20 and the top cover in the vertical direction, the winding core 30 is prevented from being deviated in the power battery, the internal interference of the power battery is avoided, and the safety performance of the power battery is improved on the premise that the electric performance of the power battery is not influenced. Meanwhile, the limit of the top cover to the winding core is realized by utilizing the relation between the first split part 10 and the second split part 20, and the winding core 30 can be prevented from deviating in the power battery in a low-cost mode. Meanwhile, the first split part 10 and the second split part 20 can prevent risks caused by interference between the top of the winding core 30 and the top cover.
Further, a first connection portion is provided on a side of the first split portion 10 facing the second split portion 20, and a second connection portion 21 is provided on a side of the second split portion 20 facing the first split portion 10; the first connection portion is connected to the second connection portion 21. It can be understood that the first split portion 10 is provided with a first connection portion, and the second split portion 20 is provided with a second connection portion 21, which corresponds to local connection, that is, the first split portion 10 and the second split portion 20 are both plate-shaped, and the connection between the first split portion 10 and the second split portion 20 is realized by using the connection portion on the plate, so that the advantage of simple processing is provided.
In a specific embodiment, the first connection portion includes a first hot melt hole formed on the first split portion 10, and the second connection portion 21 includes a second hot melt hole formed on the second split portion 20; the first hot melt holes are in butt joint with the second hot melt holes to form a hot melt groove, and hot melt adhesives are filled in the hot melt groove; in this embodiment, the number of the hot melt grooves is 4, and other numbers may be selected. Namely, the hot melt adhesive is injected into the hot melt tank to realize the connection of the two. In another alternative embodiment, the first connection portion includes a buckle disposed on the first split portion 10, and the second connection portion 21 includes a slot disposed on the second split portion 20; the buckle is connected with the clamping groove in a clamping way. In other alternative embodiments, the first connection portion and the second connection portion 21 may be further connected by plastic riveting, hot-melt column connection, or the like.
Further, in the present embodiment, the number of the first cantilever portions 11 and the number of the second cantilever portions 12 are one, and the first cantilever portions 11 are disposed opposite to the second cantilever portions 12. As other alternative embodiments, the number of the first cantilever portions 11 and the number of the second cantilever portions 12 may be two or more.
Further, the first cantilever part 11 is rotatably connected with the first split part 10, and the first cantilever part 11 can rotate along the direction away from the core fixing station; and/or the second cantilever portion 12 is rotatably connected with the first split portion 10, and the second cantilever portion 12 can rotate in a direction away from the core fixing station. In a preferred embodiment, the first cantilever portion 11 can rotate along the direction away from the core fixing station, and the second cantilever portion 12 can rotate along the direction away from the core fixing station, so that the battery connecting structure can match cores with different widths, the flexibility is high, and the stability of clamping the cores is improved.
Further, the first split part 10 and/or the second split part 20 are/is provided with hollow grooves. In this embodiment, only the first split portion 10 is provided with a hollow groove, so as to achieve the effect of weight reduction.
In summary, the battery connection structure provided in this embodiment can improve the safety performance of the power battery without affecting the electrical performance of the power battery, and further has the advantages of high stability and convenient processing.
Example two
The battery shell provided by the embodiment comprises a shell, a top cover and the battery connecting structure of the first embodiment; the shell is provided with a mounting groove, the top cover is in sealing connection with a notch of the mounting groove, and the battery connecting structure is arranged on one side of the top cover facing the mounting groove; the second split portion 20 is integrally formed with the top cover by injection molding. The shape of the shell and the top cover is not limited, and the shell and the top cover can be square, rectangular, cylindrical and other shapes. The specific structure and technical effects concerning the battery connection structure are described in the first embodiment, and the battery case of the present embodiment refers to the structure, which also has the technical effects.
It should be added that, in this embodiment, the first split part 10 and the second split part 20 are injection molded, and the thickness is between 0.1 mm and 5 mm; and the overall width of the battery connection structure is d2, the overall length is c2, the width of the shell is d1, the length of the shell is c2, and the following relationship is satisfied: d1-d2 is less than or equal to 0.5mm and less than or equal to 150mm, c1-c2 is less than or equal to 0.5mm and less than or equal to 150mm.
In summary, the battery housing provided in this embodiment can improve the safety performance of the power battery without affecting the electrical performance of the power battery, and further has the advantages of high stability and convenient processing.
Example III
The power battery provided in this embodiment includes a battery case as in the second embodiment, a winding core 30 is disposed at a winding core fixing station, and the winding core 30 is clamped between the first cantilever portion 11 and the second cantilever portion 12. Wherein the winding core 30 is a winding core or a lamination core. In the second embodiment, a specific structure and technical effects concerning the battery case are described, and the power battery of the present embodiment refers to the structure and has the same technical effects.
In summary, the power battery provided in this embodiment can simultaneously consider the battery electrical performance and the safety, and also has the advantages of high stability, convenient processing, and the like.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A battery connecting structure characterized by comprising a first split part (10) and a second split part (20) for connecting with a top cover, wherein the first split part (10) is connected with the second split part (20);
the first split part (10) is provided with a first cantilever part (11) and a second cantilever part (12), the first cantilever part (11) and the second cantilever part (12) are arranged in an extending mode along the direction away from the second split part (20), and a winding core fixing station is arranged between the first cantilever part (11) and the second cantilever part (12).
2. A battery connection structure according to claim 1, wherein a first connection portion is provided on a side of the first split portion (10) facing the second split portion (20), and a second connection portion (21) is provided on a side of the second split portion (20) facing the first split portion (10); the first connection portion is connected to the second connection portion (21).
3. A battery connection structure according to claim 2, wherein the first connection portion includes a first heat-fusible hole opened on the first split portion (10), and the second connection portion (21) includes a second heat-fusible hole opened on the second split portion (20); the first hot melt holes are in butt joint with the second hot melt holes to form a hot melt groove, and hot melt glue is filled in the hot melt groove.
4. A battery connection structure according to claim 2, wherein the first connection portion comprises a buckle provided on the first split portion (10), and the second connection portion (21) comprises a clamping groove provided on the second split portion (20); the buckle is connected with the clamping groove in a clamping way.
5. The battery connecting structure according to claim 1, wherein the number of the first cantilever portions (11) and the number of the second cantilever portions (12) are one, and the first cantilever portions (11) are disposed opposite to the second cantilever portions (12).
6. A battery connection according to claim 1, wherein the first cantilever portion (11) is rotatably connected to the first split portion (10), the first cantilever portion (11) being rotatable in a direction away from the core fixing station; and/or the second cantilever part (12) is rotatably connected with the first split part (10), and the second cantilever part (12) can rotate along the direction away from the winding core fixing station.
7. The battery connecting structure according to claim 1, wherein the first split part (10) and/or the second split part (20) are/is provided with hollowed-out grooves.
8. A battery housing comprising a housing, a top cover and a battery connection structure according to any one of claims 1 to 7; the shell is provided with a mounting groove, the top cover is in sealing connection with a notch of the mounting groove, and the battery connecting structure is arranged on one side of the top cover, which faces the mounting groove.
9. A power battery, characterized by comprising a battery housing according to claim 8, wherein a winding core (30) is arranged at the winding core fixing station, and the winding core (30) is clamped between the first cantilever part (11) and the second cantilever part (12).
10. A power cell according to claim 9, characterized in that the winding core (30) is a wound or laminated winding core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320964398.5U CN219677502U (en) | 2023-04-25 | 2023-04-25 | Battery connection structure, battery shell and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320964398.5U CN219677502U (en) | 2023-04-25 | 2023-04-25 | Battery connection structure, battery shell and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677502U true CN219677502U (en) | 2023-09-12 |
Family
ID=87892608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320964398.5U Active CN219677502U (en) | 2023-04-25 | 2023-04-25 | Battery connection structure, battery shell and power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219677502U (en) |
-
2023
- 2023-04-25 CN CN202320964398.5U patent/CN219677502U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |