CN219371205U - Square winding type lithium battery - Google Patents
Square winding type lithium battery Download PDFInfo
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- CN219371205U CN219371205U CN202223312624.6U CN202223312624U CN219371205U CN 219371205 U CN219371205 U CN 219371205U CN 202223312624 U CN202223312624 U CN 202223312624U CN 219371205 U CN219371205 U CN 219371205U
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- lithium battery
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- front shell
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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 utility model discloses a square winding type lithium battery, which comprises a front shell and a rear shell, wherein a lithium battery core is arranged in the rear shell, the front shell is arranged outside the rear shell, a telescopic cover is arranged at one end, close to the front shell, of the rear shell, one end, far away from the rear shell, of the telescopic cover extends to the inside of the front shell, groove frames are arranged on the outer walls of two sides of the rear shell, elastic buckles are arranged on the outer walls of two sides of the front shell on one side of the groove frames, groove holes are formed in one side, close to the elastic buckles, of the groove frames, and elastic pressing strips are arranged on one side, close to the groove frames, of the elastic buckles. The utility model not only realizes the buckle type assembly connection of the square winding type lithium battery and facilitates the convenient assembly and disassembly of the square winding type lithium battery, but also accelerates the heat dissipation speed of the square winding type lithium battery and prolongs the service life of the square winding type lithium battery.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a square winding type lithium battery.
Background
The packaging shell of the square battery is mostly made of aluminum alloy, stainless steel and other materials, a winding or lamination process is adopted in the battery, the protection purpose of the battery core is better than that of a soft-package lithium ion battery, the safety of the battery core is greatly improved compared with that of a cylindrical battery, and the battery is generally composed of five parts: the anode sheet, cathode sheet, electrolyte, separator and housing, the most common battery process includes a winding process mechanism and a lamination process structure, but in general, the winding structure has the advantage of low processing cost, and is easy to achieve high efficiency and high quality no matter manual, semi-automatic and full-automatic winding.
The square winding type lithium battery is mainly packaged for use through the structures of an anode plate, a cathode plate, an electrolyte, a separation film, a shell and the like, 1, when the square winding type lithium battery is externally packaged, a plastic shell is mainly used for integral packaging to carry out production assembly, when the square winding type lithium battery is packaged, the square winding type lithium battery is inconvenient to connect through buckle type assembly to carry out assembly type packaging, and when a lithium battery core is damaged, the lithium battery core can be freely disassembled and replaced to reduce the maintenance cost and facilitate assembly and disassembly; 2. after the square winding type lithium battery is packaged, the square winding type lithium battery is mostly subjected to self shell type heat dissipation or self heat dissipation plate type heat dissipation, and active ventilation type heat dissipation is not facilitated when the square winding type lithium battery is used, so that the flow of gas is accelerated, and the heat dissipation efficiency is improved.
Disclosure of Invention
The utility model aims to provide a square winding type lithium battery, which solves the problems that the lithium battery is inconvenient to assemble and connect in a buckle type manner and is convenient and quick to assemble and disassemble in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: square winding formula lithium cell, including preceding shell and backshell, the inside of backshell is equipped with the lithium cell, the outside of backshell is equipped with preceding shell, the one end that the backshell is close to preceding shell is installed flexible cover, and the one end that the backshell was kept away from to flexible cover extends to the inside of preceding shell, all install the recess frame on the outer wall of backshell both sides, all install the elasticity knot on the outer wall of the preceding shell both sides of recess frame one side, the recess frame is close to one side that the elasticity was detained all is equipped with the recess hole, the elasticity layering is all installed to one side that the elasticity was detained and is close to the recess frame, the elasticity pole is all installed to one side that the elasticity layering leaned on you recess hole, the elasticity protruding knot is installed to the one end that the elasticity layering was kept away from to the elasticity, and the inside that the recess hole extended to the recess frame is passed through to the elasticity protruding knot.
Preferably, the outer wall of the rear shell is provided with a data wire, and one end of the data wire, which is far away from the rear shell, is provided with a connector.
Preferably, a switch is installed on the side wall of the front shell, and a power supply plug is installed on the side wall of the front shell below the switch.
Preferably, a positive electrode contact is arranged on the side wall of the lithium battery cell, and a negative electrode contact is arranged on the side wall of the lithium battery cell below the positive electrode contact.
Preferably, the front shell at one side of the negative electrode contact and the positive electrode contact is internally provided with a support sleeve, and the support sleeve is internally provided with a pressing block.
Preferably, springs are arranged on the side walls of the pressing blocks, and one ends of the springs, which are far away from the pressing blocks, are connected with the supporting sleeves.
Preferably, a negative electrode sheet layer is arranged in the lithium battery cell, a diaphragm layer is arranged in the lithium battery cell on one side of the negative electrode sheet layer, and a positive electrode sheet layer is arranged in the lithium battery cell on one side of the diaphragm layer.
Preferably, a heat dissipation hole is arranged on the side wall of the front shell at one side of the power supply plug, and a fan is arranged on the side wall of the rear shell.
Compared with the prior art, the utility model has the beneficial effects that: the square winding type lithium battery is convenient to assemble and disassemble, the heat dissipation speed of the square winding type lithium battery is accelerated, and the service life of the square winding type lithium battery is prolonged;
(1) When the square winding type lithium battery is required to be assembled, the telescopic cover is inserted into the front shell to splice the rear shell, the telescopic cover and the front shell together, the elastic rod and the elastic convex buckle are inserted into the groove frame through the groove hole to fix the elastic rod, the elastic convex buckle and the groove frame, and the elastic pressing strip is contacted with the groove frame to be connected and fixed again, so that the buckle type assembling connection is convenient, the buckle type assembling connection of the square winding type lithium battery is realized, and the convenience in assembling and disassembling of the square winding type lithium battery is facilitated;
(2) When the lithium battery cell is installed, the positive electrode contact and the negative electrode contact are in contact with the pressing block to play a role in conducting electricity, the spring elastically supports the pressing block, and the pressing block is elastically contacted with the negative electrode contact to increase the firmness of connection, so that firm conductive connection of the square winding type lithium battery cell is realized, and the stability of electric quantity transmission of the square winding type lithium battery is improved;
(3) Through twining positive pole thin slice layer, diaphragm layer and negative pole thin slice layer together and constituteing the lithium cell, the inside of back shell and preceding shell is inhaled outside gas by the fan, is discharged by the louvre, has realized square wind the convenient ventilation heat dissipation of roll-up lithium cell for square wind the radiating speed of roll-up lithium cell, has prolonged square wind the life-span of roll-up lithium cell.
Drawings
FIG. 1 is a schematic cross-sectional elevation view of the present utility model;
FIG. 2 is a schematic cross-sectional elevation view of the present utility model;
FIG. 3 is a schematic side view of a switch according to the present utility model;
FIG. 4 is a schematic side view of the rear housing of the present utility model;
FIG. 5 is a schematic view showing the cross-sectional structure of the negative electrode sheet layer of the present utility model;
fig. 6 is a schematic diagram of a system frame structure according to the present utility model.
In the figure: 1. a front shell; 2. a rear case; 3. a telescoping shield; 4. an elastic buckle; 5. an elastic pressing strip; 6. a groove frame; 7. an elastic convex buckle; 8. a groove hole; 9. an elastic rod; 10. a data line; 11. a connector; 12. a switch; 13. a power supply plug; 14. a heat radiation hole; 15. a positive electrode sheet layer; 16. a separator layer; 17. a negative electrode sheet layer; 18. a negative electrode contact; 19. a support sleeve; 20. a spring; 21. a positive electrode contact; 22. briquetting; 23. a lithium cell; 24. a fan.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the 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.
Referring to fig. 1-6, an embodiment of the present utility model is provided: the square winding type lithium battery comprises a front shell 1 and a rear shell 2, wherein a lithium battery core 23 is arranged in the rear shell 2, a front shell 1 is arranged outside the rear shell 2, a telescopic cover 3 is arranged at one end, close to the front shell 1, of the rear shell 2, one end, far away from the rear shell 2, of the telescopic cover 3 extends to the inside of the front shell 1, a groove frame 6 is arranged on the outer walls of the two sides of the rear shell 2, an elastic buckle 4 is arranged on the outer walls of the two sides of the front shell 1 on one side of the groove frame 6, a groove hole 8 is arranged on one side, close to the elastic buckle 4, of the elastic buckle 4, an elastic pressing strip 5 is made of an elastic material, an elastic rod 9 is arranged on one side, close to the groove hole 8, of the elastic pressing strip 5, an elastic convex buckle 7 is arranged at one end, far away from the elastic rod 9, of the elastic convex buckle 7 extends to the inside of the groove frame 6 through the groove hole 8, the elastic convex buckle 7 is made of an elastic material, the elastic buckle 7 is connected with the groove frame 6 in a sliding mode, a data wire 10 is arranged on the outer wall of the front shell 1 on one side of the rear shell 6, one end, far away from the rear shell 2 is provided with a connector 12, and a power supply plug 13 is arranged on the front shell 1 side wall 12;
when the lithium battery pack is used, the lithium battery cell 23 is placed in the front shell 1 and the rear shell 2, the data wire 10 is connected with the outside through the connector 11 to supply power, the power supply plug 13 is connected with the outside to supply power, the switch 12 plays a role in controlling the on-off of the lithium battery cell 23, when the square winding type lithium battery is required to be assembled, the telescopic cover 3 is inserted into the front shell 1 to splice the rear shell 2, the telescopic cover 3 and the front shell 1 together, the elastic rod 9 and the elastic convex buckle 7 are inserted into the groove frame 6 through the groove holes 8, the elastic rod 9, the elastic convex buckle 7 and the groove frame 6 are fixed according to the structural characteristics of the groove frame 6 and the elastic convex buckle 7, and at the moment, the elastic pressing strip 5 is contacted with the groove frame 6 to be connected and fixed again, so that the buckle type assembling connection is convenient, the buckle type assembling connection of the square winding type lithium battery is realized, and the convenient assembling and disassembling of the square winding type lithium battery are convenient;
the side wall of the lithium battery cell 23 is provided with an anode contact 21, the side wall of the lithium battery cell 23 below the anode contact 21 is provided with a cathode contact 18, the inside of the front shell 1 at one side of the cathode contact 18 and the anode contact 21 is provided with a support sleeve 19, the inside of the support sleeve 19 is provided with a press block 22, the press block 22 is in sliding connection with the support sleeve 19, the side wall of the press block 22 is provided with a spring 20, one end of the spring 20 away from the press block 22 is connected with the support sleeve 19, and the spring 20 plays a role of elastic support;
when the lithium battery cell is used, the positive electrode contact 21 and the negative electrode contact 18 are connected with the lithium battery cell 23, when the lithium battery cell 23 is installed, the positive electrode contact 21 and the negative electrode contact 18 are in contact with the pressing block 22 to play a role in conducting electricity, under the support of the support sleeve 19, the spring 20 elastically supports the pressing block 22, and the pressing block 22 is elastically contacted with the negative electrode contact 18 to increase the connection firmness, so that firm conducting connection of the square winding type lithium battery cell is realized, and the electric quantity transmission stability of the square winding type lithium battery is improved;
the lithium battery cell 23 is internally provided with a negative electrode sheet layer 17, the lithium battery cell 23 on one side of the negative electrode sheet layer 17 is internally provided with a diaphragm layer 16, the lithium battery cell 23 on one side of the diaphragm layer 16 is internally provided with a positive electrode sheet layer 15, the side wall of the front shell 1 on one side of the power supply plug 13 is provided with a heat radiation hole 14, and the side wall of the rear shell 2 is provided with a fan 24;
during use, the positive electrode sheet layer 15, the diaphragm layer 16 and the negative electrode sheet layer 17 are wound together to form the lithium battery core 23, when the lithium battery core 23 is used for a long time, electric quantity is very easy to generate, external air is sucked into the rear shell 2 and the front shell 1 by the fan 24 and is discharged through the heat dissipation holes 14, so that the convenient ventilation and heat dissipation of the square winding type lithium battery are realized, the heat dissipation speed of the square winding type lithium battery is accelerated, and the service life of the square winding type lithium battery is prolonged.
When the embodiment of the application is used, the following steps are adopted: firstly, a lithium battery core 23 is placed in the front shell 1 and the rear shell 2, a data wire 10 is connected with the outside through a connector 11 for supplying power, a power supply plug 13 is connected with the outside for supplying power, a switch 12 is used for controlling the on-off of the lithium battery core 23, when a square winding type lithium battery needs to be assembled, a telescopic cover 3 is inserted into the front shell 1, the rear shell 2, the telescopic cover 3 and the front shell 1 are spliced together, an elastic rod 9 and an elastic convex buckle 7 are inserted into the groove frame 6 through a groove hole 8, the elastic rod 9, the elastic convex buckle 7 and the groove frame 6 are fixed according to the structural characteristics of the groove frame 6 and the elastic convex buckle 7, at the moment, an elastic pressing strip 5 is contacted with the groove frame 6 for connection and fixation again, make things convenient for buckle formula equipment to connect, afterwards be connected through positive electrode contact 21 and negative electrode contact 18 with lithium cell 23, when lithium cell 23 installs, positive electrode contact 21 and negative electrode contact 18 all contact with briquetting 22, play electrically conductive effect, under the support of brace 19, spring 20 is to briquetting 22 elastic support, by briquetting 22 and the elastic contact of negative electrode contact 18, increase the fastness of connection, the lithium cell 23 is constituteed through twining positive electrode lamella layer 15, diaphragm layer 16 and negative electrode lamella layer 17 together, very easily produce the electric quantity when lithium cell 23 uses for a long time, inhale the inside of backshell 2 and preceding shell 1 with outside gas by fan 24, discharge by louvre 14, accomplish the use work of lithium cell.
Claims (8)
1. Square winding lithium battery, including preceding shell (1) and backshell (2), its characterized in that: the inside of backshell (2) is equipped with lithium cell (23), the outside of backshell (2) is equipped with preceding shell (1), flexible cover (3) are installed near the one end of preceding shell (1) to backshell (2), and flexible cover (3) are kept away from the one end of backshell (2) and are extended to the inside of preceding shell (1), all install recess frame (6) on the outer wall of backshell (2) both sides, all install elasticity knot (4) on the outer wall of preceding shell (1) both sides of recess frame (6) one side, the one side that recess frame (6) is close to elasticity knot (4) all is equipped with concave slot hole (8), elasticity layering (5) are all installed to one side that elasticity layering (5) are close to recess slot hole (8), elasticity protruding knot (7) are all installed to one side that elasticity layering (9) are kept away from elasticity layering (5), and elasticity protruding knot (7) one end is passed through concave slot hole (8) and is extended to the inside of recess frame (6).
2. The square wound lithium battery of claim 1, wherein: the outer wall of the rear shell (2) is provided with a data wire (10), and one end, far away from the rear shell (2), of the data wire (10) is provided with a connector (11).
3. The square wound lithium battery of claim 1, wherein: a switch (12) is arranged on the side wall of the front shell (1), and a power supply plug (13) is arranged on the side wall of the front shell (1) below the switch (12).
4. The square wound lithium battery of claim 1, wherein: the lithium battery cell is characterized in that a positive electrode contact (21) is arranged on the side wall of the lithium battery cell (23), and a negative electrode contact (18) is arranged on the side wall of the lithium battery cell (23) below the positive electrode contact (21).
5. The square wound lithium battery of claim 4, wherein: the negative electrode contact (18) and the positive electrode contact (21) are arranged in the front shell (1), the support sleeve (19) is arranged in the front shell, and the pressing blocks (22) are arranged in the support sleeve (19).
6. The square wound lithium battery of claim 5, wherein: the side walls of the pressing blocks (22) are provided with springs (20), and one ends of the springs (20) far away from the pressing blocks (22) are connected with the supporting sleeves (19).
7. The square wound lithium battery of claim 1, wherein: the lithium battery cell (23) is internally provided with a negative electrode sheet layer (17), the lithium battery cell (23) at one side of the negative electrode sheet layer (17) is internally provided with a diaphragm layer (16), and the lithium battery cell (23) at one side of the diaphragm layer (16) is internally provided with a positive electrode sheet layer (15).
8. The square wound lithium battery of claim 3, wherein: the side wall of the front shell (1) at one side of the power supply plug (13) is provided with a heat radiation hole (14), and the side wall of the rear shell (2) is provided with a fan (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223312624.6U CN219371205U (en) | 2022-12-09 | 2022-12-09 | Square winding type lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223312624.6U CN219371205U (en) | 2022-12-09 | 2022-12-09 | Square winding type lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219371205U true CN219371205U (en) | 2023-07-18 |
Family
ID=87141340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223312624.6U Active CN219371205U (en) | 2022-12-09 | 2022-12-09 | Square winding type lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219371205U (en) |
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2022
- 2022-12-09 CN CN202223312624.6U patent/CN219371205U/en active Active
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