CN214428695U - Battery top cap, battery case and power battery - Google Patents
Battery top cap, battery case and power battery Download PDFInfo
- Publication number
- CN214428695U CN214428695U CN202023082201.0U CN202023082201U CN214428695U CN 214428695 U CN214428695 U CN 214428695U CN 202023082201 U CN202023082201 U CN 202023082201U CN 214428695 U CN214428695 U CN 214428695U
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- Prior art keywords
- battery
- electric core
- top cap
- end plate
- utility
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- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000008595 infiltration Effects 0.000 abstract description 6
- 238000001764 infiltration Methods 0.000 abstract description 6
- 238000007790 scraping Methods 0.000 abstract description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model belongs to the technical field of lithium ion battery, concretely relates to battery top cap, including the apron and set up in the end plate of the at least one end of apron, be provided with utmost point post on the end plate. The utility model discloses an adopt the structure of "apron + end plate", be equivalent to offering the installation passageway at the top of traditional time type battery shell structure, consequently, in the process of assembling electric core income shell, can go into the shell with electric core from the direction of height of battery, shortened electric core income shell distance greatly, the income shell efficiency of electric core that has improved, also reduced electric core simultaneously and received risks such as colliding with, scraping, improve the security performance of battery; additionally, the utility model discloses still will annotate the liquid hole setting on the apron, the quantity of annotating the liquid hole moreover is more than two, consequently, can allow to annotate the liquid from the lateral part of battery, has promoted the efficiency of annotating the liquid, has improved the not good problem of battery one end infiltration effect in traditional notes liquid mode. Furthermore, the utility model also discloses a battery case and a power battery.
Description
Technical Field
The utility model belongs to the technical field of lithium ion battery, concretely relates to battery top cap, battery case and power battery.
Background
In recent years, with the development of new energy automobile industry, the demand for lithium ion power batteries is increasing.
At present, in new energy automobile power battery's design, with the length extension of electricity core, it is a direction to reduce the size of its width simultaneously, sets up like this and helps reducing the waste of invalid space on the electric core length direction to improve the energy density of battery, strengthened the duration of a journey ability of car, in addition, through the size that reduces the height, make the battery thinner, the radiating effect has obtained promotion by a wide margin. As shown in fig. 1, a structure of a group of strip-shaped batteries is shown, wherein the positive and negative electrodes of the batteries are respectively disposed at two ends of the batteries, however, the above structure has certain defects: the battery adopts traditional aluminium hull 1 'of returning the shape structure, and naked electric core 2' is owing to longer and two electrode distributions at the both ends of naked electric core 2 ', goes into the in-process of shell at naked electric core 2', on needing to penetrate the one end of naked electric core 2 'the other end of aluminium hull 1', and assembly efficiency is lower, and naked electric core 2 'receives the accident such as colliding with, scraping of aluminium hull 1' easily in addition, and then causes certain potential safety hazard.
In view of the above, there is a need for further improvement of the above prior art to meet the actual production needs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the battery top cover effectively solves the problems that the traditional naked battery core is low in assembly efficiency and easy to collide with and scrape in the shell entering process, and greatly improves the assembly efficiency and the safety performance of the battery.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the battery top cover comprises a cover plate and an end plate arranged at least one end of the cover plate, wherein a pole column is arranged on the end plate.
As right the utility model discloses in the improvement of battery top cap, the length of apron is more than or equal to 0.5m, just the height of end plate with the length ratio scope of apron is 0.2 ~ 0.4. The utility model discloses mainly improve to elongated shape structure's battery, make the income shell risk of electric core reduce by a wide margin through the income shell mode that changes the battery, and in using the battery of above-mentioned proportion length, can make the utility model discloses reach best effect.
As an improvement to the battery top cap described in the present invention, the cover plate is of a rectangular or arc structure. The cover plate can be arranged into a rectangular or arc-shaped structure, and reasonable adaptation can be carried out according to the shape of the battery.
As an improvement to the battery top cap described in the present invention, the end plate is of any one of a rectangular, circular and oval structure. Similar to the cover plate, the end plate can also be provided in various shapes, and is also required to be properly adapted according to the specific shape of the battery.
As right the utility model discloses in the improvement of battery top cap, be provided with on the apron and annotate liquid hole and explosion-proof valve. The traditional battery with a strip-shaped structure is mainly used for injecting liquid from one end of the battery, so that the liquid injection efficiency is low, and the infiltration effect of the other end is poor due to the longer battery; the utility model discloses a set up on the apron and annotate the liquid hole, will annotate the liquid hole and separate with utmost point post, adopt the mode of annotating the liquid from the battery lateral part promptly, promoted the efficiency of annotating the liquid widely, also avoided the battery not good phenomenon of infiltration effect of one end wherein simultaneously.
As right the utility model discloses in the improvement of battery top cap, every for evenly arranging between the notes liquid hole, annotate the liquid hole with explosion-proof valve is two at least. The explosion-proof valves are provided in at least two, which can effectively improve the safety performance of the battery. In addition, the liquid injection holes are uniformly distributed, so that the liquid injection is uniform, and the local soaking of the battery core is prevented from being insufficient.
As an improvement to the battery top cap described in the present invention, the end plate and the cover plate form an included angle α, and the range of the included angle α is 30 ° to 90 °. The utility model discloses in, the end plate can form certain inclination with the apron to adapt to different end structure's electric core, but under general condition, electric core is square electric core or circular electric core, and its both ends are smooth structure, consequently the utility model discloses in, the end plate sets up to perpendicular with the apron usually to form "L" shape, "Contraband" font or the battery top cap of "U" shape structure, made things convenient for the installation of battery top cap.
As right the utility model discloses in the improvement of battery top cap, the apron with be the integrated into one piece structure between the end plate. The end plate and the cover plate are arranged into an integrally formed structure, so that the overall structural strength of the battery top cover can be effectively improved, and the service life of the battery top cover is prolonged; wherein, in the utility model discloses in, the processing method of end plate and apron can have the multiple, like welding integrated into one piece, punching press integrated into one piece etc. but in order to improve the efficiency of processing, can preferentially adopt the mode of buckling processing, promptly through cutting out rectangular earlier, then buckle the shaping with rectangular one end or both ends, form apron and end plate respectively, this processing method easy operation can reach the effect of saving the cost.
The beneficial effects of the utility model reside in that: the utility model discloses an adopt the structure of "apron + end plate", set up the installation passageway on traditional top of returning type battery case body structure in other words, consequently, go into the in-process of shell at assembly electric core, can go into the shell from the direction of height of battery with electric core, go into the shell mode with traditional from battery length direction and compare, the utility model discloses shorten the distance that electric core goes into the shell widely, improved the income shell efficiency of electric core, also reduced electric core simultaneously and received risks such as colliding with, scraping, improve the security performance of battery.
The utility model also provides a battery case, including the top cap and with the casing that the top cap is connected, the top cap is the battery top cap in any section of the aforesaid. Will the utility model provides a battery top cap uses in battery case, cooperates with battery top cap through the casing, can reduce the time of assembly widely, improves the effect of assembly, reduces the potential safety hazard that electric core was collided with and is caused.
The utility model also provides a power battery, including the shell with hold in the electric core of shell, the shell does the utility model provides a battery case. By using the backup battery shell, the safety performance of the power battery is greatly improved.
Drawings
FIG. 1 is a schematic diagram of a prior art elongated battery structure;
fig. 2 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 3 of the present invention;
fig. 5 is one of the schematic structural diagrams of the battery case according to the present invention;
fig. 6 is a second schematic structural view of a battery case according to the present invention;
fig. 7 is a schematic structural diagram of a power battery according to the present invention;
wherein, 1' -aluminum shell; 2' -naked electric core; 1-cover plate; 2-end plate; 4-a top cover; 5-a shell; 6-electric core; 11-liquid injection hole; 12-an explosion-proof valve; 21-pole column; l-length direction; w-width direction; h-height direction.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples, which should not be construed as limiting the present invention.
Example 1
As shown in fig. 2, a set of specific modes of the present invention, a battery top cap, including the cover plate 1 and the end plates 2 disposed at both ends of the cover plate 1, are provided with the terminal posts 21 on each end plate 2. In the utility model, by adopting the structure of the cover plate and the end plate, the installation channel is arranged at the top end of the traditional square-shaped battery shell structure, therefore, in the process of assembling the electric core into the shell, the electric core can be inserted into the shell from the height direction of the battery, compared with the traditional mode of inserting the shell from the length direction of the battery, the utility model greatly shortens the distance of inserting the electric core into the shell, reduces the risks of collision, scraping and the like of the electric core, and improves the safety performance of the battery; wherein, in this embodiment, apron 1 and end plate 2 all set up to the rectangle structure to more be applicable to the electric core installation of square rectangular structure.
It should be noted that the utility model discloses mainly improve to elongated structure's battery, make the income shell risk of electric core reduce by a wide margin and improve the efficiency that electric core goes into the shell through the income shell mode that changes the battery, consequently, this type of battery need possess certain length, in the utility model discloses in, when the length of apron 1 is more than or equal to 0.5m, and the length ratio scope of the height of end plate 2 and apron 1 can make when being 0.2 ~ 0.4 the utility model discloses reach best effect.
According to the traditional liquid injection structure of the strip-shaped battery, liquid injection is required from one end of the battery in the actual operation process, the liquid injection efficiency is low, and the battery is long, so that the battery core infiltration speed at the other end in the liquid injection process is low, and the infiltration effect is influenced; in the battery top cover structure provided by the utility model, more than two liquid injection holes 11 are uniformly arranged on the cover plate 1, so that the liquid injection amount of a unit is greatly increased, and meanwhile, the electrolyte can smoothly flow to the battery cores at two ends due to the liquid injection from the side of the battery, thereby improving the infiltration effect of the battery cores; in addition, still be provided with explosion-proof valve 12 on the apron 1, explosion-proof valve 12 also sets up to at least two equally for obtain the ability of stabilizing the pressure release on longer apron 1, further improved battery safety performance.
Preferably, the end plate 2 and the cover plate 1 form an included angle α, and the included angle α ranges from 30 ° to 90 °. The utility model discloses in, end plate 2 can form certain inclination with apron 1 to adapt to different end structure's electric core, but under general condition, because electric core is square electric core or circular electric core, its both ends are smooth structure, consequently the utility model discloses in, end plate 2 sets up generally to the structure with apron vertically, has made things convenient for the installation of battery top cap.
Preferably, the cover plate 1 and the end plate 2 are integrally formed. The cover plate 1 and the end plate 2 are arranged into an integrally formed structure, so that the overall structural strength of the battery top cover can be effectively improved, and the service life of the battery top cover is prolonged; in this embodiment, the cover plate 1 and the two end plates 2 are bent, i.e., the long strip is cut out, and then the two ends of the long strip are bent to form the cover plate 1 and the two end plates 2, respectively.
Example 2
As shown in fig. 3, another group of embodiments of the present invention is shown, which is different from embodiment 1 in that only one end of the cover plate 1 is provided with an end plate 2, and other structures are the same as embodiment 1 and are not described again. In this embodiment, because the structure of the end plate and the cover plate is also adopted, the effect of loading the battery cell into the case from the height direction of the battery can be achieved, and the safety performance and the loading efficiency of the battery are improved.
Example 3
As shown in fig. 4, another group of embodiments of the present invention is shown, which is different from embodiment 1 in that the cover plate 1 has an arc structure and the two end plates 2 have a circular structure. Therefore, the battery cell is more suitable for mounting the round long-strip-shaped battery cell, and the assembly efficiency and safety performance are improved.
The utility model also provides a battery case, including top cap 4 and the casing 5 of being connected with top cap 4, top cap 4 does the utility model provides a battery top cap. Will the utility model provides a battery top cap uses in battery case, cooperates with top cap 4 through casing 5, can reduce the time of assembly widely, improves the effect of assembly, reduces the potential safety hazard that electric core was collided with and is caused. It should be noted that the top cover 4 and the housing 5 are mutually matched, so that the housing 5 should be configured correspondingly according to the structure of the top cover 4 in the actual production process. As shown in fig. 5, if the end plates 2 are disposed at both ends of the cover plate 1, both ends of the housing 5 need to be opened, similar to a U-shaped structure; as shown in fig. 6, if only one end of the cover plate 1 is provided with the end plate 2, the casing 5 needs to be provided with the corresponding end plate 2 and the corresponding pole 21 at the other end, so as to be matched with the top cover 4 to implement the installation of the battery cell.
As shown in fig. 7, the present invention further provides a power battery, which includes a housing and an electric core 6 accommodated in the housing, wherein the housing is the battery housing of the present invention. By using the battery shell, the safety performance of the power battery is greatly improved.
Claims (10)
1. A battery top cap, characterized in that: including apron (1) and set up in end plate (2) of the at least one end of apron (1), be provided with utmost point post (21) on end plate (2).
2. A battery top cap according to claim 1, wherein: the length of the cover plate (1) is greater than or equal to 0.5m, and the ratio of the height of the end plate (2) to the length of the cover plate (1) is in the range of 0.2-0.4.
3. A battery top cap according to claim 1, wherein: the cover plate (1) is of a rectangular or arc structure.
4. A battery top cap according to claim 1, wherein: the end plate (2) is in any one of a rectangular structure, a circular structure and an oval structure.
5. A battery top cap according to claim 1, wherein: the cover plate (1) is provided with a liquid injection hole (11) and an explosion-proof valve (12).
6. A battery top cap according to claim 5, wherein: the number of the liquid injection holes (11) is at least two, and the liquid injection holes (11) are uniformly distributed.
7. A battery top cap according to claim 1, wherein: the end plate (2) and the cover plate (1) form an included angle alpha, and the included angle alpha ranges from 30 degrees to 90 degrees.
8. A battery top cap according to claim 1, wherein: the cover plate (1) and the end plate (2) are of an integrally formed structure.
9. A battery housing, characterized by: the battery top cover comprises a top cover (4) and a shell (5) connected with the top cover (4), wherein the top cover (4) is the battery top cover as claimed in any one of claims 1-8.
10. A power battery, characterized by: comprises a housing and a battery cell (6) accommodated in the housing, wherein the housing is the battery housing in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023082201.0U CN214428695U (en) | 2020-12-21 | 2020-12-21 | Battery top cap, battery case and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023082201.0U CN214428695U (en) | 2020-12-21 | 2020-12-21 | Battery top cap, battery case and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214428695U true CN214428695U (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023082201.0U Active CN214428695U (en) | 2020-12-21 | 2020-12-21 | Battery top cap, battery case and power battery |
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| Country | Link |
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| CN (1) | CN214428695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284604A (en) * | 2021-12-24 | 2022-04-05 | 上海兰钧新能源科技有限公司 | Flat and long battery shell, lithium ion battery and electric automobile |
-
2020
- 2020-12-21 CN CN202023082201.0U patent/CN214428695U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284604A (en) * | 2021-12-24 | 2022-04-05 | 上海兰钧新能源科技有限公司 | Flat and long battery shell, lithium ion battery and electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220126 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 523000 Dalang Town, Dongguan, Guangdong province Xiangshan Pine Hill Village Xiangshan Industrial Park Jiayuan Road No. 9 Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |