CN219759890U - Square lithium battery structure - Google Patents
Square lithium battery structure Download PDFInfo
- Publication number
- CN219759890U CN219759890U CN202320467595.6U CN202320467595U CN219759890U CN 219759890 U CN219759890 U CN 219759890U CN 202320467595 U CN202320467595 U CN 202320467595U CN 219759890 U CN219759890 U CN 219759890U
- Authority
- CN
- China
- Prior art keywords
- end cover
- groove
- explosion
- electrode
- lithium battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims 7
- 238000004804 winding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 208000005168 Intussusception Diseases 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a square lithium battery structure, which relates to the technical field of lithium batteries and comprises an upper end cover and a lower end cover, wherein the upper end cover is clamped with the lower end cover, mounting grooves are formed in two sides of the lower end cover, connecting pieces are mounted in the mounting grooves, through grooves are formed in two sides of the lower end cover, which are close to the mounting grooves, of the lower end cover, electrode rivets are welded at the upper ends of the connecting pieces, mounting holes are formed in the upper end cover, the electrode rivets penetrate through the mounting holes, grooves are formed in the upper end cover, electrode pressing plates are mounted in the grooves, elastic buckles are symmetrically mounted on the lower sides of the electrode pressing plates, and clamping grooves matched with the elastic buckles are formed in the grooves. According to the utility model, the elastic buckle is clamped in the clamping groove of the groove, so that the electrode pressing plate is arranged in the groove, the elastic buckle is clamped in the clamping groove to prevent the electrode pressing plate from falling off, meanwhile, the upper end cover and the lower end cover are arranged through the buckling nails and the through holes, the space of the lug connected to the connecting sheet is increased, and the lug is prevented from being folded and shorted.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a square lithium battery structure.
Background
Lithium batteries are secondary batteries composed of positive and negative electrodes, respectively, of two compounds capable of reversibly intercalating and deintercalating lithium ions, and belong to relatively sophisticated and advanced batteries. The lithium battery that adopts in the present market includes the casing, rolls up core and apron, rolls up the core and includes positive plate and negative plate, and positive plate and negative plate keep apart through the diaphragm, roll up the both sides of core and have positive plate foil and negative plate foil that stretches out, roll up the core and pass through the tab and weld and install in the casing behind positive connection piece or negative connection piece, positive connection piece and negative connection piece welded respectively on the electrode rivet, electrode rivet welded respectively at the electrode clamp plate, establish the apron lid again at the opening part on casing top and welded seal form battery.
Because the electrode clamp plate can receive the traction of external pulling force and make the electrode clamp plate desoldering in the use, reduce lithium cell life, and when utmost point ear and connection piece welded mounting in the casing, establish pressure effect and make utmost point ear intussusception short circuit owing to the lid of apron, produce the use risk. Accordingly, there is a need for a prismatic lithium battery structure that solves the above-described problems.
Disclosure of Invention
The utility model aims to provide a square lithium battery structure which solves the defects caused by the prior art.
The utility model provides a square lithium battery structure, includes upper end cover and lower end cover, upper end cover and the mutual joint of lower extreme, the both sides of lower extreme are equipped with the mounting groove, install the connection piece in the mounting groove, the both sides that the lower extreme is close to the mounting groove are equipped with logical groove, the upper end welding of connection piece has electrode rivet, be equipped with the mounting hole on the upper end cover, electrode rivet passes the mounting hole, be equipped with the recess on the upper end cover, install the electrode clamp plate in the recess, the elasticity buckle is installed to the downside symmetry of electrode clamp plate, be equipped with the draw-in groove of cooperation in the elasticity buckle in the recess.
Preferably, the lower end cover is provided with an explosion-proof groove, the upper end cover is provided with an explosion-proof hole, the explosion-proof groove is inserted in the explosion-proof hole, and the explosion-proof groove is provided with an explosion-proof valve.
Preferably, a plurality of buckles are arranged on the lower side of the upper end cover, and through holes matched with the buckles are formed in the lower end cover.
Preferably, a guide block is arranged at the lower end of the electrode pressing plate, and the side wall of the guide block is abutted against the inner side of the groove.
Preferably, the downside welding of lower extreme cover has the aluminium shell, install the book core in the aluminium shell, it is connected with the pole piece to roll up the core upper end, the pole piece passes through the logical groove and welds on the connection piece of homonymy.
The utility model has the advantages that: according to the utility model, the elastic buckle is clamped in the clamping groove of the groove, so that the electrode pressing plate is arranged in the groove, the elastic buckle is clamped in the clamping groove to prevent the electrode pressing plate from falling off, meanwhile, the upper end cover and the lower end cover are arranged through the buckling nails and the through holes, the space of the lug connected to the connecting sheet is increased, and the lug is prevented from being folded and shorted.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic view of the overall assembly of the present utility model.
Fig. 3 is a schematic structural view of an electrode platen according to the present utility model.
Fig. 4 is an enlarged schematic view of the structure of fig. 2 a.
Wherein: 1-an upper end cover; 2-a lower end cap; 3-mounting grooves; 4-connecting sheets; 5-through grooves; 6-electrode rivets; 7-mounting holes; 8-grooves; 9-electrode press plates; 10-elastic buckle; 11-clamping grooves; 12-an explosion-proof tank; 13-explosion-proof holes; 14-an explosion-proof valve; 15-cramps; 16-through holes; 17-a guide block; 18-an aluminum shell; 19-winding the core; 20-pole lugs.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1 to 4, a square lithium battery structure, including upper end cover 1 and lower end cover 2, upper end cover 1 and the mutual joint of lower end cover 2, the both sides of lower end cover 2 are equipped with mounting groove 3, install connection piece 4 in the mounting groove 3, the both sides that lower end cover 2 is close to mounting groove 3 are equipped with logical groove 5, the upper end welding of connection piece 4 has electrode rivet 6, be equipped with mounting hole 7 on upper end cover 1, electrode rivet 6 passes mounting hole 7, be equipped with recess 8 on the upper end cover 1, install electrode clamp plate 9 in the recess 8, elastic buckle 10 is installed to the downside symmetry of electrode clamp plate 9, be equipped with the draw-in groove 11 that cooperates in elastic buckle 10 in the recess 8. The lower side of the electrode rivet 6 is provided with a shape which is matched with the inner wall of the mounting groove 3, the electrode rivet 6 is limited, the lower side of the lower end cover 2 is symmetrically provided with connecting blocks, the connecting blocks are inserted into the aluminum shell 18, and the lower end cover 2 is welded on the aluminum shell 18 through welding.
In this embodiment, the lower end cover 2 is provided with an explosion-proof slot 12, the upper end cover 1 is provided with an explosion-proof hole 13, the explosion-proof slot 12 is inserted into the explosion-proof hole 13, and the explosion-proof slot 12 is provided with an explosion-proof valve 14.
In this embodiment, a plurality of studs 15 are installed on the lower side of the upper end cover 1, and through holes 16 matched with the studs 15 are formed in the lower end cover 2.
In this embodiment, a guide block 17 is disposed at the lower end of the electrode pressing plate 9, and a side wall of the guide block 17 abuts against the inner side of the groove 8. The guide block 17 performs a guiding function in the process of downward movement of the electrode pressing plate 9, and the elastic bayonet 10 automatically rebounds and clamps the clamping groove 11 after reaching the position of the clamping groove 11.
In this embodiment, an aluminum case 18 is welded to the lower side of the lower end cover 2, a winding core 19 is installed in the aluminum case 18, a tab 20 is welded to the upper end of the winding core 19, and the tab 20 passes through the through slot 5 and is welded to the connecting piece 4 on the same side.
The working principle of the utility model is as follows: the tab 20 is welded on the positive plate and the negative plate of the winding core 19, the winding core 19 is installed in the aluminum shell 18, then the tab 20 passes through the through groove 5 of the lower end cover 2, then the lower end cover 2 is welded on the aluminum shell 18, the connecting sheet 4 is installed in the mounting groove 3, the tab 20 is welded on the connecting sheet 4, the electrode rivet 6 is welded on the connecting sheet 4, then the upper end cover 1 is installed in the through hole 16 through the button nail 15 for mounting operation, then the electrode pressing plate 9 is guided into the insertion groove 8 through the guide block 17 and clamped in the clamping groove 11 through the elastic buckle 10 for limiting operation, then the electrode pressing plate 9 is welded on the upper end of the electrode rivet 6, and then the explosion-proof valve 14 is installed on the upper end of the explosion-proof groove 12.
According to the utility model, the elastic buckle 10 is clamped in the clamping groove 11 of the groove 8, so that the electrode pressing plate 9 is arranged in the groove 8, the elastic buckle 10 is clamped in the clamping groove 11 to prevent the electrode pressing plate 9 from falling off, and meanwhile, the upper end cover 1 and the lower end cover 2 are arranged through the buckling nails and the through holes, so that the space of the lug connected to the connecting sheet is increased, and the lug is prevented from being folded inwards to be short-circuited.
It will be appreciated by those skilled in the art that the present utility model can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.
Claims (5)
1. A square lithium battery structure, characterized in that: including upper end cover (1) and lower end cover (2), upper end cover (1) and mutual joint of lower end cover (2), the both sides of lower end cover (2) are equipped with mounting groove (3), install connection piece (4) in mounting groove (3), the both sides that lower end cover (2) are close to mounting groove (3) are equipped with logical groove (5), the upper end welding of connection piece (4) has electrode rivet (6), be equipped with mounting hole (7) on upper end cover (1), electrode rivet (6) pass mounting hole (7), be equipped with recess (8) on upper end cover (1), install electrode clamp plate (9) in recess (8), elastic buckle (10) are installed to the downside symmetry of electrode clamp plate (9), be equipped with draw-in groove (11) in cooperation in elastic buckle (10) in recess (8).
2. The prismatic lithium battery structure according to claim 1, wherein: the anti-explosion device is characterized in that an anti-explosion groove (12) is formed in the lower end cover (2), an anti-explosion hole (13) is formed in the upper end cover (1), the anti-explosion groove (12) is inserted into the anti-explosion hole (13), and an anti-explosion valve (14) is arranged on the anti-explosion groove (12).
3. The prismatic lithium battery structure according to claim 1, wherein: the lower side of the upper end cover (1) is provided with a plurality of buckles (15), and the lower end cover (2) is provided with through holes (16) matched with the buckles (15).
4. The prismatic lithium battery structure according to claim 1, wherein: the lower extreme of electrode clamp plate (9) is equipped with guide block (17), the lateral wall butt of guide block (17) is in the inboard of recess (8).
5. The prismatic lithium battery structure according to claim 4, wherein: the lower side welding of lower end cover (2) has aluminium shell (18), install in aluminium shell (18) and roll up core (19), roll up core (19) upper end welding and have utmost point ear (20), utmost point ear (20) pass through logical groove (5) and weld on connection piece (4) of homonymy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320467595.6U CN219759890U (en) | 2023-03-13 | 2023-03-13 | Square lithium battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320467595.6U CN219759890U (en) | 2023-03-13 | 2023-03-13 | Square lithium battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219759890U true CN219759890U (en) | 2023-09-26 |
Family
ID=88085616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320467595.6U Active CN219759890U (en) | 2023-03-13 | 2023-03-13 | Square lithium battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219759890U (en) |
-
2023
- 2023-03-13 CN CN202320467595.6U patent/CN219759890U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |