CN219759841U - Soft package module - Google Patents
Soft package module Download PDFInfo
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- CN219759841U CN219759841U CN202320786371.1U CN202320786371U CN219759841U CN 219759841 U CN219759841 U CN 219759841U CN 202320786371 U CN202320786371 U CN 202320786371U CN 219759841 U CN219759841 U CN 219759841U
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- electrode tab
- positive electrode
- negative electrode
- tab
- package module
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- 238000003466 welding Methods 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000005489 elastic deformation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Abstract
The utility model discloses a soft package module, which belongs to the technical field of battery modules and comprises the following components: the soft package battery cores are sequentially arranged on the insulating plate in parallel and are provided with the tab groups; each tab group comprises a positive electrode tab and a negative electrode tab, one ends of the positive electrode tab and the negative electrode tab are bent to correspond to each other, and an installation cavity is formed between the positive electrode tab and the negative electrode tab; the busbar is arranged in the mounting cavity and comprises a first connecting part and a second connecting part which are respectively and electrically connected with the positive electrode tab and the negative electrode tab in a same polarity; the positioning piece comprises at least one propping component, the propping component is connected with the busbar, and one end of the propping component extends to the outer side of the positive electrode lug or the negative electrode lug; the utility model can ensure stable current transmission, reduce the reject ratio, avoid the dislocation or separation in the welding process and improve the working efficiency.
Description
Technical Field
The utility model relates to the technical field of battery modules, in particular to a soft package module.
Background
The battery module generally refers to a combination piece in which the battery cells are combined in a serial or parallel mode and then are provided with a fixing device, and the combination piece is one of secondary structures for forming a power battery pack. The battery cell is divided into a cylindrical battery cell, a square shell battery cell and a soft package battery cell according to the structural shape of the battery cell. The soft-package battery core has the advantages of high battery energy density, long cycle life, low internal resistance, excellent charge and discharge characteristics, light material adopted for packaging and the like. Therefore, the soft pack battery module is becoming more and more popular in the field of new energy automobiles.
The utility model provides a soft packet of lithium battery module, including a plurality of electric core units that place and pile up from top to bottom horizontally, electric core unit includes the framework, be located the heat conduction aluminum plate of framework and be located the at least one end of framework and converge the metal sheet, the framework encloses into accommodation space with the heat conduction aluminum plate, install soft packet of electric core in the accommodation space, weld respectively on anodal, negative pole converge the metal sheet after anodal lug of soft packet of electric core is buckled, anodal, negative pole converge the metal sheet and realize the series-parallel through the busbar for each electric core unit, and realize the leading-out to anodal, negative pole of soft packet of lithium battery module through anodal, negative pole lead-out piece; however, when the positive electrode tab and the negative electrode tab of the battery cell are bent and then welded, the positive electrode tab and the negative electrode tab cannot be positioned and fixed, so that the positive electrode tab and the negative electrode tab are easy to misplace or separate in the welding process, and the working efficiency is affected.
Disclosure of Invention
The utility model aims to overcome the technical defects, and provides a soft package module which solves the technical problems in the prior art.
In order to achieve the above technical purpose, the technical solution of the present utility model provides a soft package module, including:
the soft package battery cores are sequentially arranged on the insulating plate in parallel and are provided with tab groups;
the electrode assembly comprises a plurality of electrode lug groups, wherein each electrode lug group comprises a positive electrode lug and a negative electrode lug, one ends of the positive electrode lug and the negative electrode lug are bent to correspond to each other, and an installation cavity is formed between the positive electrode lug and the negative electrode lug;
the busbar is arranged in the mounting cavity and comprises a first connecting part and a second connecting part which are respectively and electrically connected with the positive electrode tab and the negative electrode tab;
the positioning piece comprises at least one propping component, the propping component is connected with the busbar, and one end of the propping component extends to the outer side of the positive electrode lug or the negative electrode lug so as to drive the connection position of the positive electrode lug and the negative electrode lug to prop tightly.
In some embodiments, the positioning pieces are provided with at least two groups, and each group of positioning pieces is respectively arranged at two ends of the tab group.
In some embodiments, the positive electrode tab and the negative electrode tab are symmetrically spliced, and a welding surface is formed on one end surface corresponding to each other.
In some embodiments, each set of positioning members is respectively disposed on opposite sides of the positive electrode tab and the negative electrode tab and respectively abuts against the sidewalls of the positive electrode tab and the negative electrode tab, so as to tightly abut against the welding surfaces of the positive electrode tab and the negative electrode tab.
In some embodiments, the negative electrode tab extends to the outer side of the positive electrode tab and is lapped on the outer side of the positive electrode tab, and a welding surface is formed on one side surface corresponding to the positive electrode tab.
In some embodiments, each set of positioning elements is disposed above the negative electrode tab and abuts against the negative electrode tab, so as to tightly abut against the welding surface of the positive electrode tab and the negative electrode tab.
In some embodiments, the propping assembly comprises a supporting rod and an elastic piece, the supporting rod is arranged at the end part of the positive electrode tab or the negative electrode tab, and the elastic piece is arranged at one side of the supporting rod, which is close to the tab group, and is used for generating elastic deformation to extrude the tab group.
In some embodiments, the elastic piece comprises an elastic piece, one end of the elastic piece is fixedly connected with the stay bar, the other end of the elastic piece is slidably connected with the stay bar, and the side face of the elastic piece abuts against the tab group.
In some embodiments, the positioning piece further comprises a fixing seat, the fixing seat is connected with the busbar, a limiting groove is formed in one end, close to the tab group, of the fixing seat, and one end of the supporting rod is clamped and fixed with the limiting groove.
In some embodiments, the plurality of tab groups are staggered in sequence in a double row.
Compared with the prior art, the utility model has the beneficial effects that: the first connecting part and the second connecting part are respectively and electrically connected with the positive electrode tab and the negative electrode tab in a same polarity, so that stable current transmission is ensured, the reject ratio is reduced, the locating piece is arranged at the end part of the tab group after the bus bar is installed by using the locating piece, and the connecting position of the positive electrode tab and the negative electrode tab can be abutted tightly, so that the positive electrode tab and the negative electrode tab can be welded conveniently; the device has simple structure, can avoid the dislocation or separation in the welding process, and improves the working efficiency.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of a flexible package module according to the present utility model;
FIG. 2 is a schematic top view of the soft pack module of FIG. 1;
FIG. 3 is a schematic cross-sectional front view of the soft pack module of FIG. 1;
fig. 4 is a schematic perspective view of a soft package module according to an embodiment of the present utility model when a positive tab and a negative tab are spliced;
FIG. 5 is a schematic top view of the flexible package module of FIG. 4;
FIG. 6 is a schematic side view of a soft package module according to an embodiment of the present utility model;
FIG. 7 is a schematic cross-sectional front view of the soft pack module of FIG. 6;
fig. 8 is a schematic view of a positioning member of the soft package module in fig. 1.
In the figure: 1. soft package battery core; 11. an insulating plate; 2. a tab group; 21. a positive electrode tab; 22. a negative electrode tab; 3. a busbar; 31. a first connection portion; 32. a second connecting portion; 4. a positioning piece; 41. a tightening assembly; 411. a brace rod; 412. an elastic member; 42. a fixing seat; 421. and a limit groove.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 8, the present utility model provides a soft pack module, including: a plurality of soft package battery cells 1, a plurality of tab groups 2, a busbar 3 and a positioning piece 4.
Each soft package cell 1 is arranged in the insulating board 11 side by side in turn and is provided with a tab group 2.
Each tab group 2 includes a positive electrode tab 21 and a negative electrode tab 22, and one ends of the positive electrode tab 21 and the negative electrode tab 22 are bent to correspond to each other, and an installation cavity is formed between the positive electrode tab 21 and the negative electrode tab 22.
The busbar 3 is disposed in the mounting cavity, and the busbar 3 includes a first connection portion 31 and a second connection portion 32, where the first connection portion 31 and the second connection portion 32 are electrically connected with the positive electrode tab 21 and the negative electrode tab 22.
The positioning member 4 includes at least one abutting component 41, where the abutting component 41 is connected with the busbar 3, and one end of the abutting component extends to the outer side of the positive electrode tab 21 or the negative electrode tab 22, so as to drive the connection position of the positive electrode tab 21 and the negative electrode tab 22 to abut.
In this device, all be provided with anodal utmost point ear 21 and negative pole utmost point ear 22 on a plurality of soft packet of electric core 1 to direct with anodal utmost point ear 21 and negative pole utmost point ear 22 and busbar 3 are connected, in the busbar 3, through making first connecting portion 31 and second connecting portion 32 respectively with anodal utmost point ear 21 and negative pole utmost point ear 22 homopolar material electricity be connected, with guarantee that the electric current transmission is stable, reduce the defective rate, settle behind the installation cavity when busbar 3, the setting element 4 that links to each other with it corresponds the outside of arranging in utmost point ear group 2, and can support the hookup location tight with anodal utmost point ear 21 and negative pole utmost point ear 22, also press from both sides anodal utmost point ear 21 and negative pole utmost point ear 22 clamp in busbar 3 both sides simultaneously, so as to carry out follow-up welding work to anodal utmost point ear 21 and negative pole utmost point ear 22 etc..
Further, the positive electrode tab 21 is an aluminum tab, the negative electrode tab 22 is copper-plated nickel, the first connecting portion 31 of the busbar 3 is an aluminum plate non-copper-plated portion, the second connecting portion 32 is an aluminum plate copper-plated portion, the first connecting portion 31 and the second connecting portion 32 are respectively connected with the positive electrode tab 21 and the negative electrode tab 22 in an electric mode, the process of converting the aluminum tab into copper-plated nickel is omitted, defects caused by welding of different materials can be avoided, and the reject ratio is reduced.
As shown in fig. 2, in some embodiments, the tab groups 2 are staggered in a double row.
As shown in fig. 4 to 7, in some embodiments, the positioning members 4 are provided with at least two groups, and each group of positioning members 4 is respectively disposed at two ends of the tab group 2, and by generating a tightening force at two ends of the tab group 2, the fixing effect on the positive electrode tab 21 and the negative electrode tab 22 can be improved.
As shown in fig. 4 and 5, in some embodiments, the positive electrode tab 21 and the negative electrode tab 22 are symmetrically spliced and arranged, and a welding surface is formed on one end surface corresponding to each other between the positive electrode tab 21 and the negative electrode tab 22, and when the welding device is in operation, the welding device is used for performing welding at the welding surface, at this time, four groups of positioning pieces 4 are respectively arranged at two ends of the side surface of the busbar 3, each group of positioning pieces 4 is respectively arranged at one side of the positive electrode tab 21 and the negative electrode tab 22 opposite to each other and respectively abuts against the side walls of the positive electrode tab 21 and the negative electrode tab 22, so that the positive electrode tab 21 and the negative electrode tab 22 are driven to abut against each other at one ends of the two ends of the positive electrode tab 21 and the negative electrode tab 22, and the fixation of the auxiliary positive electrode tab 21 and the negative electrode tab 22 before welding is realized, so as to facilitate welding.
Further, the positive electrode tab 21 and the negative electrode tab 22 are preferably spliced, so that the side surfaces and the top ends of the positive electrode tab 21 and the negative electrode tab 22 are connected with the busbar 3, and the connection stability of the tab group 2 and the busbar 3 is ensured.
As shown in fig. 6 and 7, in some embodiments, the negative electrode tab 22 extends to the outside of the positive electrode tab 21 and is overlapped with the outside of the positive electrode tab 21, and a side surface welding surface corresponding to each other between the two sides, and by overlapping the negative electrode tab 22 and the positive electrode tab 21, stability before and after welding the negative electrode tab 22 and the positive electrode tab 21 can be improved; at this time, two positioning members 4 may be provided, and each set of positioning members 4 is disposed above the negative electrode tab 22 and abuts against the negative electrode tab 22, so that the negative electrode tab 22 is pressed downward at two ends above the negative electrode tab 22, so that the negative electrode tab 22 is pressed against the positive electrode tab 21, so as to facilitate welding.
As shown in fig. 8, in some embodiments, the abutting component 41 includes a supporting rod 411 and an elastic piece 412, the positioning piece 4 further includes a fixing seat 42, the fixing seat 42 is connected with the busbar 3, a limit slot 421 is formed at one end of the fixing seat 42 near the tab group 2, one end of the supporting rod 411 is fixedly clamped with the limit slot 421, before the busbar 3 is installed, the supporting rod 411 is detachable so as to facilitate the busbar to be discharged in the installation cavity, after the busbar 3 is installed in the installation cavity, one end of the supporting rod 411 can be inserted into the limit slot 421 for installation, so that the supporting rod 411 is arranged at the end of the positive electrode tab 21 or the negative electrode tab 22, the elastic piece 412 is arranged at one side of the supporting rod 411 near the tab group 2, the elastic piece 412 includes an elastic piece, one end of the elastic piece is fixedly connected with the supporting rod 411, the other end of the elastic piece is slidingly connected with the supporting rod 411, the side of the elastic piece is abutted against the tab group 2, after the supporting rod 411 is installed, a gap between the supporting rod 411 and the tab group 2 is smaller than the width of the elastic piece, and the elastic piece is compressed, one end of the elastic piece is enabled to deviate from the positive electrode tab 21 or the negative electrode tab 22 is located at the position of the positive electrode tab 22, and the positive electrode tab 22 is properly compressed, and the positive electrode tab 22 is reset, or the negative electrode tab 22 is located between the positive electrode tab 22 and the negative electrode tab 22 is properly, and the positive electrode 22 is reset.
Further, after the welding of the positive electrode tab 21 and the negative electrode tab 22 is completed, the supporting rod 411 may be pushed to a position close to the tab set 2, and the supporting rod 411 may be pushed away from the limiting groove 421, so that the abutting component 41 may be taken out for reuse.
Working principle: sequentially passing the single cell lugs through lug holes of the insulating plate 11 according to the correct sequence, sequentially bending the positive electrode lug 21 and the negative electrode lug 22, placing the aluminum-coated copper busbar 3, wherein the negative electrode lug 22 corresponds to a copper-coated area of the aluminum plate, and the positive electrode lug 21 corresponds to a copper-uncoated area of the aluminum plate; and then sequentially shaping the lugs, and positioning and fixing the positive electrode lug 21 and the negative electrode lug 22 by using the positioning piece 4, so that the positive electrode lug 21 and the negative electrode lug 22 are welded to the busbar 3 by adopting a process of welding the same-polarity materials.
According to the utility model, the first connecting part 31 and the second connecting part 32 are respectively and electrically connected with the positive electrode tab 21 and the negative electrode tab 22 in a same polarity, so that stable current transmission is ensured, the reject ratio is reduced, the locating piece 4 is arranged at the end part of the tab group 2 after the busbar 3 is installed by using the locating piece 4, the connecting position of the positive electrode tab 21 and the negative electrode tab 22 can be abutted tightly, so that the positive electrode tab 21 and the negative electrode tab 22 can be welded conveniently, the dislocation or separation in the welding process can be avoided, and the working efficiency is improved.
The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.
Claims (10)
1. A flexible package module, comprising:
the soft package battery cores are sequentially arranged on the insulating plate in parallel and are provided with tab groups;
each tab group comprises a positive electrode tab and a negative electrode tab, one ends of the positive electrode tab and the negative electrode tab are bent to correspond to each other, and an installation cavity is formed between the positive electrode tab and the negative electrode tab;
the busbar is arranged in the mounting cavity and comprises a first connecting part and a second connecting part, and the first connecting part and the second connecting part are respectively and electrically connected with the positive electrode tab and the negative electrode tab in a same polarity;
the positioning piece comprises at least one propping component, the propping component is connected with the busbar, and one end of the propping component extends to prop against the outer side of the positive electrode tab or the negative electrode tab so as to drive the connection position of the positive electrode tab and the negative electrode tab to prop against.
2. The flexible package module according to claim 1, wherein the positioning members are provided with at least two groups, and each group of positioning members is respectively disposed at two ends of the tab group.
3. The soft package module according to claim 1, wherein the positive electrode tab and the negative electrode tab are symmetrically spliced and arranged, and a welding surface is formed on one end surface corresponding to each other.
4. The soft package module according to claim 3, wherein each set of positioning members is respectively disposed on opposite sides of the positive electrode tab and the negative electrode tab and respectively abuts against side walls of the positive electrode tab and the negative electrode tab, so as to tightly abut against welding surfaces of the positive electrode tab and the negative electrode tab.
5. The soft package module according to claim 1, wherein the negative electrode tab extends to the outside of the positive electrode tab and is overlapped with the outside of the positive electrode tab, and a side surface corresponding to the outside of the positive electrode tab forms a welding surface.
6. The soft package module according to claim 5, wherein each set of positioning members is disposed above the negative electrode tab and abuts against the negative electrode tab, so as to tightly abut the welding surface of the positive electrode tab and the negative electrode tab.
7. The soft package module according to claim 1, wherein the tightening assembly comprises a brace rod and an elastic member, the brace rod is arranged at the end of the positive electrode tab or the negative electrode tab, and the elastic member is arranged at one side of the brace rod, which is close to the tab group, for generating elastic deformation to squeeze the tab group.
8. The flexible package module according to claim 7, wherein the elastic member comprises an elastic sheet, one end of the elastic sheet is fixedly connected with the stay bar, the other end of the elastic sheet is slidably connected with the stay bar, and a side surface of the elastic sheet abuts against the tab group.
9. The flexible package module according to claim 7, wherein the positioning member further comprises a fixing seat, the fixing seat is connected with the busbar, a limit groove is formed in one end, close to the tab group, of the fixing seat, and one end of the supporting rod is clamped and fixed with the limit groove.
10. The flexible package module of claim 1, wherein the plurality of tab sets are staggered in sequence in a double row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320786371.1U CN219759841U (en) | 2023-04-04 | 2023-04-04 | Soft package module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320786371.1U CN219759841U (en) | 2023-04-04 | 2023-04-04 | Soft package module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219759841U true CN219759841U (en) | 2023-09-26 |
Family
ID=88090482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320786371.1U Active CN219759841U (en) | 2023-04-04 | 2023-04-04 | Soft package module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219759841U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117254213A (en) * | 2023-11-17 | 2023-12-19 | 上海聚信海聚新能源科技有限公司 | Cell structure, busbar and liquid cooling battery package |
-
2023
- 2023-04-04 CN CN202320786371.1U patent/CN219759841U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117254213A (en) * | 2023-11-17 | 2023-12-19 | 上海聚信海聚新能源科技有限公司 | Cell structure, busbar and liquid cooling battery package |
| CN117254213B (en) * | 2023-11-17 | 2024-02-06 | 上海聚信海聚新能源科技有限公司 | Cell structure, busbar and liquid cooling battery package |
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