CN217507427U - Integrative positioning tool for lithium battery - Google Patents
Integrative positioning tool for lithium battery Download PDFInfo
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- CN217507427U CN217507427U CN202220479926.3U CN202220479926U CN217507427U CN 217507427 U CN217507427 U CN 217507427U CN 202220479926 U CN202220479926 U CN 202220479926U CN 217507427 U CN217507427 U CN 217507427U
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Abstract
The utility model discloses an integrated assembling and positioning tool for lithium batteries, which comprises a lower die, an upper die and a die core, wherein the upper die and the lower die are hollow cylinders, a first groove is arranged inside the upper end of the lower die and is used for bearing a bottom diaphragm, the lower end of the lower die is sleeved on the outer surface of the upper end of a lithium battery shell, a second groove is arranged inside the lower end of the upper die and is sleeved on the outer surface of the upper end of the lower die, a positive plate is arranged at the top end of the upper die, a cover film is arranged on the positive plate, the die core penetrates through the upper die and the lower die from top to bottom from the opening of the upper die, and the bottom diaphragm, the positive plate and the cover film are pushed into the bottom of the lithium battery shell and are assembled into a whole with the negative plate; the utility model discloses location frock convenient operation, assembly efficiency is high, and the product percent of pass of assembly is high, the appearance is pleasing to the eye, the uniformity is good, has solved traditional assembly method and has had that the assembly step is complicated loaded down with trivial details, each step assembly all need examine whether reach the requirement for quality, assembly efficiency is low, because of the loss rate of trouble or rework is high, the assembly uniformity is relatively poor scheduling problem.
Description
Technical Field
The utility model relates to a lithium battery processing technology field, concretely relates to integrative positioning tool of lithium cell.
Background
In order to avoid internal short circuit of the battery, the positive and negative electrode structures need to be separated in the battery and cannot be contacted with each other; the direct contact of the positive and negative electrodes outside the battery also causes external short circuit, so the internal and external short circuit is avoided.
Different lithium batteries have different internal structures, and the assembly schemes are different; for the lithium battery with an energy type non-rolled pole piece structure, the traditional manufacturing process is that a negative electrode is firstly pressed to be thin and is attached to the inner wall of a metal shell of a battery cell, including a shell bottom and a side wall, the negative electrode is surrounded by one or more pieces of diaphragms with proper sizes and is bowl-shaped, then a positive electrode with proper sizes is placed in a bowl-shaped groove or cavity formed by the diaphragms, and the positive electrode can not be contacted with a shell, so that the positive electrode can be covered or covered by one more diaphragms; the assembly steps in the traditional manufacturing process are complex and tedious, each step needs to be checked whether the quality requirement is met, the efficiency is low, the loss rate caused by unqualified rework is high, the assembly consistency is poor, the efficiency of an automatic assembly line is higher than that of a manual assembly line, the consistency is improved, and faults and rework cannot be avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize lithium cell negative pole thin slice, end diaphragm, positive plate, epiphragma integration positioning's frock.
In order to realize the above purpose, the utility model adopts the technical proposal that:
a lithium battery integrated assembling and positioning tool comprises a lower die, an upper die and a die core;
the lower die is a first cylinder with the upper end and the lower end communicated, a hollow first cavity is arranged in the first cylinder, the thickness of the side wall of the upper end of the first cylinder is smaller than that of the side walls of the lower end and the middle part of the first cylinder, a cylindrical groove with an upward opening is formed in the upper end of the first cylinder, the cylindrical groove is a first groove, and the bottom surface of the first groove is used for placing a bottom diaphragm; the lower end of the lower die is sleeved on the outer surface of the lithium battery shell;
the upper die is a second cylinder with the upper end and the lower end communicated, and a hollow second cavity is arranged inside the second cylinder; the thickness of the side wall of the lower end of the second cylinder is smaller than the thickness of the side walls of the middle part and the upper end of the second cylinder, a cylindrical groove with a downward opening is formed in the lower end of the second cylinder, and the cylindrical groove is a second groove; the top end of the upper die is used for placing the positive plate, and the second groove is used for being sleeved at the upper end of the outer side of the lower die;
the mold core is a cylinder, the cylinder is divided into an upper section and a lower section, the circumferential diameter of the upper section of the cylinder is smaller than that of the lower section of the cylinder, and the mold core is used for entering from an opening at the upper end of the upper mold and penetrating through the second cavity and the first cavity to the lower end of the lower mold.
Furthermore, the bottom surface of the groove of the first groove is horizontal, and the bottom surface of the groove of the second groove is horizontal.
Further, the inner diameter of the second groove is larger than or equal to the outer diameter of the upper end of the lower die.
Further, the area of the circular bottom surface of the first groove is equal to or larger than that of the circular bottom diaphragm.
Furthermore, the height of the lower die is higher than that of the lithium battery shell.
Further, the circular area of the top surface of the second cylinder is equal to or larger than the area of the positive plate.
The utility model has the advantages that:
1. the utility model discloses mould, lower mould and mold core have been realized in the setting lithium cell negative pole piece, end diaphragm, positive plate, epiphragma integration assembly, can once only examine after the assembly whether reach the required quality.
2. The utility model discloses location frock convenient operation, assembly efficiency is high; the end diaphragm can curl round lateral wall fold lace parcel and live positive plate and epiphragma in assembling process, and the complete wrapping structure of end diaphragm and epiphragma formation keeps apart with lithium cell housing, the complete physics of negative pole piece that positive plate and metal were made insulating, therefore the utility model discloses the product of assembly does not have short circuit, the qualification rate is high, the appearance is pleasing to the eye, the uniformity is good.
3. The utility model provides a whether traditional assembly method no matter automatic assembly or manual assembly all have the assembly step complicated loaded down with trivial details, each step assembly all need examine whether reach the required quality, assembly efficiency is low, because of the trouble or the loss rate of doing over again is high, the assembly uniformity is relatively poor scheduling problem.
Drawings
Fig. 1 is a schematic view of the present invention.
Fig. 2 is a schematic view of the usage state of the present invention.
Fig. 3 is a schematic view of the usage state of the present invention.
Wherein: a lower die 1; a first cavity 11; a first groove 12; an upper die 2; a second cavity 21; a second groove 22; a mold core 3; a lithium battery case 4; a bottom membrane 5; a positive plate 6; a cover film 7; and a negative electrode tab 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further explained below with reference to the accompanying drawings.
The utility model discloses integrative positioning frock of lithium cell includes lower mould 1, goes up mould 2, mold core 3.
As shown in fig. 1, the lower mold 1 is a cavity with two through ends, in this embodiment, the lower mold 1 is configured as a first cylinder with a hollow interior and two through ends, the first cylinder has a hollow first cavity 11 inside, the thickness of the side wall of the first cylinder is determined according to actual needs, the thickness of the side wall of the upper end of the first cylinder is reduced, the thickness of the side wall of the upper end of the first cylinder is smaller than the thickness of the side walls of the lower end and the middle part of the first cylinder, so that a cylindrical groove with an upward opening is formed inside the upper end of the first cylinder, the cylindrical groove is a first groove 12, and the bottom surface of the first groove 12 is horizontal; the size of the first cavity 11 in the lower die 1 is designed according to the size of the lithium battery shell 4, and when the lower die 1 is used, the lower die 1 is sleeved on the outer surface of the lithium battery shell 4; the lithium battery shell 4 is a cylinder with an opening at the upper end, and the bottom end of the lithium battery shell 4 comprises a negative plate 8; this embodiment is at the inside recess that sets up of lower mould 1 upper end, according to the actual use condition, also can set up the recess simultaneously in lower mould 1 upper end and lower extreme.
The circular bottom surface of the first groove 12 is used for receiving the bottom diaphragm 5, the bottom diaphragm 5 is in a circular sheet shape, the bottom diaphragm 5 is laid on the bottom surface of the first groove 12 to cover the bottom surface of the first groove 12, the area of the circular bottom surface of the first groove 12 can be equal to or slightly larger than that of the circular bottom diaphragm 5, and the bottom diaphragm 5 can be conveniently and smoothly laid on the bottom surface of the first groove 12.
The upper die 2 is a cavity with a through upper end and a through lower end, in this embodiment, the upper die 2 is set to be a second cylinder with a hollow interior and through upper end and lower end, and the second cylinder has a hollow second cavity 21 inside; the top end of the upper die 2 is used for bearing the positive plate 6, the positive plate 6 is generally circular, and the circumference of the upper die 2 is designed according to the size of the positive plate 6, so that the positive plate 6 is conveniently placed at the top end of the upper die 2; the thickness of the side wall of the second cylinder is determined according to actual needs, the thickness of the side wall at the lower end of the second cylinder is reduced, and the thickness of the side wall at the lower end of the second cylinder is smaller than the thickness of the side walls at the middle part and the upper end of the second cylinder, so that a cylindrical groove with a downward opening is formed in the lower end of the second cylinder, the cylindrical groove is a second groove 22, and the bottom surface of the second groove 22 is horizontal; in this embodiment, the groove is formed in the lower end of the upper die 2, or the groove is formed in the upper end and the lower end of the upper die 2.
Use the utility model discloses during location frock, go up mould 2 and put on lower mould 1, the internal diameter of going up the second recess 22 of mould 2 lower extreme is more than or equal to the external diameter of lower mould 1 upper end for second recess 22 of going up the mould 2 lower extreme can be sheathe the in the upper end in the 1 outside of lower mould, and the middle part and the lower extreme of lower mould 1 still are in the outside of last mould 2.
As shown in fig. 1, 2 and 3, the mold core 3 is generally a cylinder, the upper and lower bottom surfaces are flat, no groove or through hole is formed, and the periphery of the mold core is required to be rounded to prevent the bottom diaphragm 5, the positive plate 6 and the cover film 7 from being scraped; the upper section of the cylinder and the lower section of the cylinder of the mold core 3 can be set as cylinders with different diameters, the upper section and the lower section are integrally formed, one end of the mold core 3 is in the lower section in the conventional size, and the diameter of the other end, namely the upper section of the cylinder, is slightly smaller than that of the lower section of the cylinder.
The sizes of the first cavity 11 and the second cavity 21 are designed according to the size of the mold core 3, so that the mold core 3 can pass through the hollow first cavity 11 and the hollow second cavity 21.
Use the utility model discloses operating procedure during location frock is as follows:
the first step is as follows: sleeving the lower die 1 on the outer surface of the lithium battery shell 4;
the second step is that: placing the bottom membrane 5 on the circular bottom surface of the first groove 12 of the lower die 1;
the third step: the upper die 2 is placed on the lower die 1, the second groove 22 at the lower end of the upper die 2 can sleeve the upper end of the outer side of the lower die 1, and the upper die 2 and the lower die are concentric and coaxial when placed on the lower die 1;
the fourth step: placing the positive plate 6 at the top end of the upper die 2;
the fifth step: placing a cover membrane 7 on the anode plate 6, wherein the cover membrane 7 is in a ring shape, and the central part of the ring is indicated by a dotted line in the figure 1;
and a sixth step: the mold core 3 is pushed into the second cavity 21 and the first cavity 11 from top to bottom from the upper part of the upper mold 1 until the bottom diaphragm 5, the positive plate 6 and the cover film 7 are pushed into the bottom of the lithium battery shell 4 along with the mold core 3, so that the integrated assembly of the negative plate 8 positioned at the bottom of the lithium battery shell 4, the bottom diaphragm 5, the positive plate 6 and the cover film 7 is realized.
When the device of the utility model is used for installing the bottom diaphragm 5, the positive plate 6 and the cover film 7, the pressure of the mold core 3 to the positive plate 6 is conducted fully and uniformly; after the installation is finished, the mold core 3 is easy to take out; the circumference of the upper section of the mold core 3 is smaller than that of the lower section, when the bottom diaphragm 5, the positive plate 6 and the cover film 7 are not flat after being installed at the bottom of the battery shell 4, the thin end of the mold core 3 is adopted to press the bottom diaphragm 5, the positive plate 6 and the cover film 7, and the bottom diaphragm 5, the positive plate 6 and the cover film 7 are installed at the bottom of the lithium battery shell 4 flatly.
The cover film 7, positive plate 6, end diaphragm 5, negative pole piece 8 are put from last to down as shown in fig. 2, and after mould core 3 passed through last mould 2 and the inside hollow cavity of lower mould 1, once only pushed away lithium cell casing 4, end diaphragm 5 will curl up the parcel of round lateral wall fold lace and live positive plate 6 and cover film 7, and the complete wrapping structure of end diaphragm 5 and cover film 7 formation is with the lithium cell casing 4 that positive plate 6 and metal were made, the complete physical isolation of negative pole piece 8 is insulating.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element 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 invention.
Claims (6)
1. An integrated assembling and positioning tool for a lithium battery is characterized by comprising a lower die (1), an upper die (2) and a die core (3);
the lower die (1) is a first cylinder with the upper end and the lower end communicated, a hollow first cavity (11) is arranged in the first cylinder, the thickness of the side wall of the upper end of the first cylinder is smaller than that of the side walls of the lower end and the middle part of the first cylinder, a cylindrical groove with an upward opening is formed in the upper end of the first cylinder, the cylindrical groove is a first groove (12), and the bottom surface of the first groove (12) is used for placing a bottom diaphragm (5); the lower end of the lower die (1) is sleeved on the outer surface of the lithium battery shell (4);
the upper die (2) is a second cylinder with the upper end and the lower end communicated, and a hollow second cavity (21) is arranged in the second cylinder; the thickness of the side wall of the lower end of the second cylinder is smaller than the thickness of the side walls of the middle part and the upper end of the second cylinder, a cylindrical groove with a downward opening is formed in the lower end of the second cylinder, and the cylindrical groove is a second groove (22); the top end of the upper die (2) is used for placing the positive plate (6), and the second groove (22) is sleeved on the outer side of the lower die (1);
the mold core (3) is a cylinder, the cylinder is divided into an upper section and a lower section, the circumferential diameter of the upper section of the cylinder is smaller than that of the lower section of the cylinder, and the mold core (3) is used for entering from an upper end opening of the upper mold (2) to penetrate through the second cavity (21) and the first cavity (11) to the lower end of the lower mold (1).
2. The lithium battery integrated assembling and positioning tool set forth in claim 1, wherein the bottom surface of the first groove (12) is horizontal, and the bottom surface of the second groove (22) is horizontal.
3. The lithium battery integrated assembling and positioning tool as set forth in claim 1 or 2, characterized in that the inner diameter of the second groove (22) is greater than or equal to the outer diameter of the upper end of the lower mold (1).
4. The lithium battery integrated assembling and positioning tool as set forth in claim 1 or 2, characterized in that the area of the circular bottom surface of the first groove (12) is equal to or larger than the area of the circular bottom diaphragm (5).
5. The lithium battery integrated assembling and positioning tool according to claim 1, wherein the lower die (1) is higher than the lithium battery shell (4).
6. The lithium battery integrated assembling and positioning tool set forth in claim 1, wherein the circular area of the top surface of the second cylinder is equal to or larger than the area of the positive plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220479926.3U CN217507427U (en) | 2022-03-07 | 2022-03-07 | Integrative positioning tool for lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220479926.3U CN217507427U (en) | 2022-03-07 | 2022-03-07 | Integrative positioning tool for lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217507427U true CN217507427U (en) | 2022-09-27 |
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ID=83345698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220479926.3U Active CN217507427U (en) | 2022-03-07 | 2022-03-07 | Integrative positioning tool for lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217507427U (en) |
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2022
- 2022-03-07 CN CN202220479926.3U patent/CN217507427U/en active Active
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