CN219759891U - Lithium battery positive lug changes copper crimping device - Google Patents
Lithium battery positive lug changes copper crimping device Download PDFInfo
- Publication number
- CN219759891U CN219759891U CN202320607378.2U CN202320607378U CN219759891U CN 219759891 U CN219759891 U CN 219759891U CN 202320607378 U CN202320607378 U CN 202320607378U CN 219759891 U CN219759891 U CN 219759891U
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- CN
- China
- Prior art keywords
- column assembly
- copper
- aluminum column
- conical
- groove
- 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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Links
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 47
- 239000010949 copper Substances 0.000 title claims abstract description 47
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 39
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 14
- 238000002788 crimping Methods 0.000 title claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 100
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 100
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims 5
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a copper-to-copper crimping device for a lithium battery positive lug, which comprises a copper column, wherein two opposite and penetrating taper grooves I and II are penetrated in the copper column, and an aluminum column component is inserted in the taper grooves I and II; the aluminum column component is in interference connection with the copper column, a plurality of inclined grooves are formed in the inner wall of the first conical groove, and the outer ring wall of the aluminum column component is fit in the inclined grooves; the upper aluminum column assembly and the lower aluminum column assembly are connected in the copper column, and after connection is completed, one ends of the upper aluminum column assembly and the lower aluminum column assembly, which are positioned at the outer end of the copper column, are hammered downwards, so that the upper aluminum column assembly and the lower aluminum column assembly are tightly connected in the copper column, loose displacement is prevented from being generated after connection, the resistance value of the connection part is reduced, and the temperature after power-on is increased; the utility model has the beneficial effects of improving the compactness between the upper aluminum column assembly and the copper column assembly, reducing the resistance and avoiding the danger caused by high temperature.
Description
Technical Field
The utility model relates to the technical field of battery lugs, in particular to a copper-to-copper crimping device for a positive lug of a lithium battery.
Background
The electrode lug is a raw material of lithium ion polymer batteries and lithium-manganese battery products. For example, a mobile phone battery, a bluetooth battery, a notebook battery and the like used in life need to use a tab. The battery is divided into positive and negative poles, the electrode lugs are metal conductors which lead the positive and negative poles out of the battery core, and the ears of the positive and negative poles of the battery are colloquially the contact points when the battery is charged and discharged; and when the batteries are assembled in groups, the anode and the cathode of the batteries are required to be riveted with the (copper) bus bars respectively.
In the related art, the defects are that the lug is loosened and shifted due to riveting, the resistance value at the joint is increased, the temperature is increased when the battery discharges with high current, the safety problem is caused by the formation of high temperature of a lithium battery monomer or a lithium battery pack, and meanwhile, the battery cannot be fully filled due to the fact that a certain voltage is formed due to the increase of the resistance, so that improvement is needed.
Disclosure of Invention
Aiming at solving the problem that the traditional battery pack is loosened and shifted due to riveting during assembly and the resistance value at the joint is increased, the utility model provides a device for converting the positive lug of a lithium battery into copper and crimping.
The utility model provides a copper-to-copper crimping device for a lithium battery positive lug, which adopts the following technical scheme:
the device comprises a copper column, wherein two opposite and penetrating taper grooves I and II are formed in the copper column in a penetrating manner, and an aluminum column component is inserted into the taper grooves I and II;
the aluminum column assembly is in interference connection with the copper column, a plurality of inclined grooves are formed in the inner wall of the first conical groove, and the outer ring wall of the aluminum column assembly is fit in the inclined grooves.
Through adopting above-mentioned technical scheme, upper aluminum column assembly and lower aluminum column assembly are connected in the copper post to will be in the upper aluminum column assembly of copper post outer end and the one end of lower aluminum column assembly hammering downwards after the connection is accomplished, make upper aluminum column assembly and lower aluminum column assembly in copper post zonulae occludens, prevent again that it from producing not hard up displacement after connecting, and then reduce the resistance value of junction, and the temperature increase after the circular telegram.
Preferably, the aluminum column assembly comprises an upper aluminum column assembly, one end of the upper aluminum column assembly is fixedly connected with an inverted conical bottom ring, and an embedded groove is formed in one end of the upper aluminum column assembly in the middle of the bottom ring.
Preferably, the aluminum column assembly further comprises a lower aluminum column assembly, one end of the lower aluminum column assembly is conical and is arranged to be a conical end, the top of the conical end is fixedly connected with a plunger, a forward conical lantern ring is fixedly connected to the lower aluminum column assembly below the conical end, a round groove is formed in the outer portion of the lantern ring, and an inscription groove is formed in the lantern ring.
Preferably, the bottoms of the first conical groove and the second conical groove in the copper column are provided with bottom grooves, the bottom wall of the second conical groove is fixedly connected with elastic rings opposite to the direction of the lantern ring, and the two side walls of the second conical groove are fixedly connected with a plurality of bulges.
Preferably, the bottom ring penetrates through the bottom of the first conical groove to the second conical groove, the conical end is filled into the bottom ring, and the inserted column is inserted into the inner caulking groove.
Preferably, the elastic ring is inserted into the sleeve ring, one end of the elastic ring is inserted into the inscription groove, and the protrusion is clamped in the circular groove.
Compared with the prior art, the utility model has the beneficial effects that:
the conical end of the lower aluminum column assembly is inserted into a bottom ring at one end of the upper aluminum column assembly in the conical groove II, at the moment, the inserted column is inserted into the inner caulking groove, when the lower aluminum column assembly is hammered, the bottom ring is damaged and is outwards fried to be connected with the inner wall of the conical groove II, and meanwhile, one end of the upper aluminum column assembly is damaged and outwards displaced due to the fact that hammering is continued, the upper aluminum column assembly enters the bottom groove, and therefore the connection compactness of the upper aluminum column assembly and the copper column is improved;
meanwhile, as the lantern ring is clamped on the elastic ring, the conical end is tightly connected with the upper aluminum column assembly when the lower aluminum column assembly is hammered, so that the elastic ring and the lantern ring are connected without falling off, but the lantern ring generated by hammering generates a raised edge, the raised edge can be clamped between the protrusions, and the elastic ring is limited by the protrusions, if the lantern ring does not generate the raised edge, namely, the protrusions are spliced in the circular grooves, and the upper aluminum column assembly and the lower aluminum column assembly are tightly connected.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
fig. 3 is an enlarged schematic view of the structure a in fig. 2 according to the present utility model.
In the figure: 1. copper columns; 11. a chute; 12. a first taper groove; 13. a bottom groove; 14. a cone groove II; 141. a protrusion; 15. a spring ring; 2. an upper aluminum column assembly; 21. a bottom ring; 22. an embedded groove; 3. a lower aluminum column assembly; 31. a cone end; 311. inserting a column; 32. a collar; 321. a circular groove; 322. an inscription groove; 4. an aluminum pillar assembly.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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. 1-3, the present utility model provides a technical solution: the device comprises a copper column 1, wherein two opposite and penetrating taper grooves I12 and II 14 are penetrated in the copper column 1, and an aluminum column component 4 is inserted in the taper grooves I12 and II 14;
the aluminum column component 4 is in interference connection with the copper column 1, a plurality of inclined grooves 11 are formed in the inner wall of the first conical groove 12, and the outer ring wall of the aluminum column component 4 is fit in the inclined grooves 11.
The aluminum column assembly 4 comprises an upper aluminum column group 4, one end of the upper aluminum column assembly 2 is fixedly connected with an inverted conical bottom ring 21, and one end of the upper aluminum column assembly 2 positioned in the middle of the bottom ring 21 is provided with an embedded groove 22.
The aluminum column assembly 4 further comprises a lower aluminum column assembly 3, one end of the lower aluminum column assembly 3 is conical and is provided with a conical end 31, a plunger 311 is fixedly connected to the top of the conical end 31, a forward conical lantern ring 32 is fixedly connected to the lower aluminum column assembly 3 below the conical end 31, a round groove 321 is formed in the outer portion of the lantern ring 32, and an inner connecting groove 322 is formed in the lantern ring 32.
The upper aluminum column assembly 2 and the lower aluminum column assembly 3 are connected in the copper column 1, and after the connection is completed, one ends of the upper aluminum column assembly 2 and the lower aluminum column assembly 3 which are positioned at the outer end of the copper column 1 are hammered downwards, so that the upper aluminum column assembly 2 and the lower aluminum column assembly 3 are tightly connected in the copper column 1, loose displacement is prevented from being generated after the connection, the resistance value of the connection part is reduced, and the temperature after the connection is increased;
and the chute 11 is W-shaped, and the conical bulge between the chute can scratch the side wall of the upper aluminum column assembly 2, so that the upper aluminum column assembly 2 is more tightly connected with the copper column 1, and the rotation of the upper aluminum column assembly is prevented.
The bottoms of the first cone groove 12 and the second cone groove 14 in the copper column 1 are provided with a bottom groove 13, the bottom wall of the second cone groove 14 is fixedly connected with a spring ring 15 opposite to the collar 32, and two side walls of the second cone groove 14 are fixedly connected with a plurality of bulges 141.
The bottom ring 21 penetrates through the bottom of the first conical groove 12 to the second conical groove 14, the conical end 31 is filled in the bottom ring 21, and the inserted column 311 is inserted into the embedded groove 22. The elastic ring 15 is inserted into the collar 32, one end of the elastic ring 15 is inserted into the internal groove 322, and the protrusion 141 is clamped into the circular groove 321.
Meanwhile, as the lantern ring 32 is clamped on the elastic ring 15, the conical end 31 is tightly connected with the upper aluminum column assembly 2 when the lower aluminum column assembly 3 is hammered, so that the elastic ring 15 and the lantern ring 32 are connected without falling off, but the lantern ring 32 generates a raised edge due to hammering, at the moment, the raised edge can be clamped between the protrusions 141, and the raised edge is limited by the protrusions 141, if the lantern ring 32 does not generate the raised edge, namely, the protrusions 141 are spliced in the circular groove 321, and the upper aluminum column assembly 2 and the lower aluminum column assembly 3 are tightly connected.
The end of the lower aluminum column assembly 3 is inserted into the bottom ring 21 at one end of the upper aluminum column assembly 2 in the conical groove two 14, at this time, the inserted column 311 is inserted into the inner caulking groove 22, when the lower aluminum column assembly 3 is hammered, the bottom ring 21 is damaged and is fried outwards to be connected with the inner wall of the conical groove two 14, and meanwhile, as hammering is continued, one end of the upper aluminum column assembly 2 is damaged and is displaced outwards to enter the bottom groove 13, so that the connection tightness of the upper aluminum column assembly 2 and the copper column 1 is improved.
In order not to affect the conductivity between the upper aluminum pillar assembly 2 and the lower aluminum pillar assembly 3 and the copper pillar 1 after connection, any structure between the upper aluminum pillar assembly 2 and the lower aluminum pillar assembly 3 and the copper pillar 1 is made of aluminum or copper.
The working principle of the utility model is as follows: the bottom ring 21 at one end of the upper aluminum column assembly 2 is inserted into the first conical groove 12 to the second conical groove 14, at this time, the chute 11 cuts the side wall of the upper aluminum column assembly 2 due to the insertion of the upper aluminum column assembly 2, so that the connection between the upper aluminum column assembly 2 and the copper column 1 is tighter, at this time, the lower aluminum column assembly 3 is inserted into the second conical groove 14, the conical end 31 of the lower aluminum column assembly 3 is inserted into the bottom ring 21 at one end of the upper aluminum column assembly 2 in the second conical groove 14, at this time, the inserted column 311 is inserted into the inner caulking groove 22, and when the lower aluminum column assembly 3 is hammered, the bottom ring 21 is damaged, is exploded outwards and is connected with the inner wall of the second conical groove 14, at the same time, due to the continuous hammering, one end of the upper aluminum column assembly 2 is damaged, is displaced outwards, and enters the bottom groove 13, so that the connection tightness between the upper aluminum column assembly 2 and the copper column 1 is improved; the conical end 31 is tightly connected with the upper aluminum column assembly 2 when the lower aluminum column assembly 3 is hammered, so that the connection between the elastic ring 15 and the lantern ring 32 is not fallen, but the raised edge is generated by the generation of the lantern ring 32 due to hammering, at this time, the raised edge can be clamped between the protrusions 141, and the lower aluminum column assembly is limited by the protrusions 141, if the lantern ring 32 does not generate the raised edge, namely, the protrusions 141 are spliced in the circular grooves 321, and the upper aluminum column assembly 2 and the lower aluminum column assembly 3 are tightly connected.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a lithium cell positive tab changes copper crimping device, includes copper post (1), its characterized in that: two opposite and penetrating taper grooves I (12) and II (14) are formed in the copper column (1) in a penetrating mode, and an aluminum column assembly (4) is inserted into the taper grooves I (12) and II (14);
the aluminum column assembly (4) is in interference connection with the copper column (1), a plurality of inclined grooves (11) are formed in the inner wall of the first conical groove (12), and the outer ring wall of the aluminum column assembly (4) is fit in the inclined grooves (11).
2. The lithium battery positive electrode lug-copper conversion crimping device according to claim 1, wherein: the aluminum column assembly (4) comprises an upper aluminum column assembly (2), one end of the upper aluminum column assembly (2) is fixedly connected with an inverted conical bottom ring (21), and an embedded groove (22) is formed in one end of the upper aluminum column assembly (2) in the middle of the bottom ring (21).
3. The lithium battery positive electrode lug-copper conversion crimping device according to claim 1, wherein: the aluminum column assembly (4) further comprises a lower aluminum column assembly (3), one end of the lower aluminum column assembly (3) is conical and is provided with a conical end (31), the top of the conical end (31) is fixedly connected with a plunger (311), the lower aluminum column assembly (3) below the conical end (31) is fixedly connected with a forward conical lantern ring (32), the outside of the lantern ring (32) is provided with a circular groove (321), the inside of the lantern ring (32) is provided with an inscribed groove (322), the conical end (31) is filled into the bottom ring (21), and the plunger (311) is inserted into the embedded groove (22).
4. The lithium battery positive electrode lug-copper conversion crimping device according to claim 1, wherein: the bottom grooves (13) are formed in the bottoms of the first conical groove (12) and the second conical groove (14) in the copper column (1), the bottom wall of the second conical groove (14) is fixedly connected with a spring ring (15) opposite to the collar (32), and two side walls of the second conical groove (14) are fixedly connected with a plurality of protrusions (141).
5. The lithium battery positive electrode lug-copper conversion crimping device according to claim 2, wherein: the bottom ring (21) penetrates through the bottom of the first conical groove (12) to the second conical groove (14).
6. The lithium battery positive electrode lug-copper conversion crimping device according to claim 4, wherein: the elastic ring (15) is inserted into the lantern ring (32), one end of the elastic ring (15) is inserted into the inner connecting groove (322), and the protrusion (141) is clamped into the circular groove (321).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320607378.2U CN219759891U (en) | 2023-03-24 | 2023-03-24 | Lithium battery positive lug changes copper crimping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320607378.2U CN219759891U (en) | 2023-03-24 | 2023-03-24 | Lithium battery positive lug changes copper crimping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219759891U true CN219759891U (en) | 2023-09-26 |
Family
ID=88082632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320607378.2U Active CN219759891U (en) | 2023-03-24 | 2023-03-24 | Lithium battery positive lug changes copper crimping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219759891U (en) |
-
2023
- 2023-03-24 CN CN202320607378.2U patent/CN219759891U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |