CN112599929A - Battery pack connecting sheet and battery pack - Google Patents
Battery pack connecting sheet and battery pack Download PDFInfo
- Publication number
- CN112599929A CN112599929A CN202011622298.1A CN202011622298A CN112599929A CN 112599929 A CN112599929 A CN 112599929A CN 202011622298 A CN202011622298 A CN 202011622298A CN 112599929 A CN112599929 A CN 112599929A
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- CN
- China
- Prior art keywords
- sheet
- battery pack
- tab
- main guide
- guide
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 230000008439 repair process Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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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- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a battery pack connecting piece, which comprises a main guide piece and a support guide piece; the main guide sheet is of a strip-shaped sheet structure, and the branch guide sheets are connected to two sides of the main guide sheet strip; the branch guide sheet is used for connecting the battery cell units, and the main guide sheet is used for enabling the plurality of battery cell units to form the battery pack. The invention has the beneficial effects that the connecting sheet can be made very long during processing, the required length is cut according to the requirement during use, if each battery pack string needs 2 batteries in parallel, 2 pairs of supporting sheets are cut as the connecting sheet, and more batteries can be connected in parallel in the same way. Therefore, the connecting sheets with the same style can be used in different use scenes. The connecting sheet has the advantages that the connecting sheet is easy to repair, when one electric core in the battery pack has a problem, only the corresponding guide sheets on two sides need to be cut off, the electric core is taken out, then a new electric core is placed in, and the new guide sheets are welded.
Description
Technical Field
The invention belongs to the technical field of new energy batteries, relates to a battery assembly technology, and particularly relates to a battery assembly connecting sheet and a battery.
Background
The power battery pack is usually assembled by a plurality of battery cells, the batteries are connected in parallel and then connected in series, and a plurality of batteries can be connected in parallel by one connecting sheet and then connected to the next battery string, so that the operation can be carried out to assemble a group of battery packs. However, the connecting sheet is usually an aluminum sheet or an aluminum strip, which requires customizing the connecting sheet for different parallel-number and serial-number battery packs, and is very troublesome to replace, and all the cells of the two strings need to be removed.
Disclosure of Invention
The invention provides a battery conductive connecting sheet applied to battery assembly, which solves the problems that the conventional connecting sheet is usually an aluminum sheet or an aluminum strip, the connecting sheet needs to be customized for different parallel-counting and serial-counting battery packs, and the operation is troublesome during replacement.
In order to achieve the purpose, the invention adopts the technical scheme that: a battery pack attachment tab comprising a main guide tab and a branch guide tab; the main guide sheet is of a strip-shaped sheet structure, and the branch guide sheets are connected to two sides of the main guide sheet strip; the branch guide sheet is used for connecting the battery cell units, and the main guide sheet is used for enabling the plurality of battery cell units to form the battery pack.
Preferably, the battery pack mounting connecting piece further comprises a buffer joint; the buffering electricity-saving connection is arranged between the main guide sheet and the branch guide sheet, and the main guide sheet and the branch guide sheet form mechanical flexible connection.
Preferably, the buffer section is a wavy conductor section formed by pre-bending a strip-shaped sheet conductor.
Preferably, the branch guide vanes are symmetrically distributed on two sides of the main guide vane band.
In the preferred scheme, the supporting and guiding sheets are distributed on two sides of the main guiding sheet belt in a staggered manner; the adjacent branch guide vanes on the same side and the branch guide vanes on the corresponding position on the opposite side form a triangle structure.
A battery pack comprising a cell unit formed by the battery pack attachment tab connection of any one of claims 1-7.
The invention has the beneficial effects that the connecting sheet can be made very long during processing, the required length is cut according to the requirement during use, if each battery pack string needs 2 batteries in parallel, 2 pairs of supporting sheets are cut as the connecting sheet, and more batteries can be connected in parallel in the same way. Therefore, the connecting sheets with the same style can be used in different use scenes. The connecting sheet has the advantages that the connecting sheet is easy to repair, when one electric core in the battery pack has a problem, only the corresponding guide sheets on two sides need to be cut off, the electric core is taken out, then a new electric core is placed in, and the new guide sheets are welded. And other cells connected in parallel are not completely removed. The operational flow of repair is reduced. The connecting sheet has the advantages of wide application range, simplicity in operation, simplicity in manufacturing and the like.
Description of the drawings:
FIG. 1 is a perspective view of one embodiment of the present tab;
FIG. 2 is a schematic view of a use case of the connecting sheet;
figure 3 is a schematic view of a unit of the present tab.
Description of reference numerals: 10. connecting sheets; 11. a main guide sheet; 12. a supporting and guiding sheet; 13. a buffer section; 14. an electric core; 15. cell fixed bolster.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following embodiments:
as one of the alternative embodiments of the present application:
a battery pack attachment tab includes a main guide tab and a support guide tab; the main guide sheet is of a strip-shaped sheet structure, and the branch guide sheets are connected to two sides of the main guide sheet strip; the branch guide sheet is used for connecting the battery cell units, and the main guide sheet is used for enabling the plurality of battery cell units to form the battery pack.
In a preferred embodiment, the battery mounting connecting piece further comprises a buffer node; the buffering electricity-saving connection is arranged between the main guide sheet and the branch guide sheet, and the main guide sheet and the branch guide sheet form mechanical flexible connection.
In a preferred embodiment, the buffer section is a wavy conductor section formed by pre-bending a strip-shaped sheet conductor.
In the scheme of the preferred embodiment, the branch guide vanes are symmetrically distributed on two sides of the main guide vane band.
In the scheme of the preferred embodiment, the supporting and guiding sheets are distributed on two sides of the main guiding sheet belt in a staggered manner; the adjacent branch guide vanes on the same side and the branch guide vanes on the corresponding position on the opposite side form a triangle structure.
A battery pack comprising a cell unit formed by the battery pack attachment tab connection of any one of claims 1-7.
As one of the alternative embodiments of the present application:
as shown in fig. 1, the present embodiment discloses a battery conductive connecting sheet, which includes a main lead 11, a branch lead 12, and a buffer node 13, and the connecting sheet is a whole. The main guide piece is a conductor for main current to flow, the branch guide pieces are arranged on two sides of the main guide piece and can be vertical to the main guide piece, and the branch guide pieces are symmetrically arranged at two ends of the main guide piece, so that batteries can be arranged side by side in an aligned manner; conversely, the main guide sheet can be arranged asymmetrically and not perpendicular to the main guide sheet. The branch guide sheet is used for welding the positive electrode and the negative electrode of the battery core, so that the battery cores are connected in series or in parallel.
In fig. 1 of this embodiment, the supporting and guiding sheet above the connecting sheet 10 has a through hole, and the through hole is designed to be adapted to the positive and negative electrode structures of the battery cell only, for better welding. The specific structure of the supporting and guiding sheet is not unique, and the function of the supporting and guiding sheet is to connect the cells in series or in parallel in order to weld the positive and negative electrodes of the cells, so that such a design is included in the present application.
If the upper and lower two supporting sheets, two buffering joints and the corresponding main guide sheet are specified as a unit (as shown in fig. 3). The manufacturer can make a plurality of units when making the connecting piece, can cut corresponding unit and can use according to the in-service use case when using, if need assemble 2 group battery, only need cut two units, if need assemble 10 group battery, need cut the connecting piece of 10 units, so the application range of the connecting piece of the same type is more extensive.
As shown in fig. 2, it is a group of 5-series and 2-series battery packs assembled with batteries in this embodiment. The battery pack shown in fig. 2 is provided with 5 cut cells, one above the other. Firstly, fixing the battery cell 15 by using the battery cell fixing bracket 16, and then welding the connecting sheet 10 with the positive electrode and the negative electrode to form the 5-parallel 2-string battery pack. In the same way, a battery pack with fewer or more battery cells connected in parallel can be formed; according to the environmental configuration of the battery pack, if a battery pack with higher voltage needs to be formed, only the low-voltage battery pack needs to be connected in series to another low-voltage battery pack through the connecting piece, so that a plurality of strings of battery packs can be formed, and the voltage of the battery packs is higher.
The battery management system is an important part of the lithium battery pack, and can be always in a working state in the battery pack, and the management system needs to acquire data information of each battery string all the time, so that a signal line is connected between every two battery strings. The conventional operation needs to connect a wire connector on a data signal wire and then lock the wire connector and the previous connecting piece by using a screw nut, so that the operation is more complicated and troublesome. For the connecting sheet, only the data signal line needs to be directly welded on the main guide sheet or the branch guide sheet by laser, so that the battery management system can acquire the state information of each string of battery cells.
As one of the alternative embodiments of the present application:
a battery pack connection tab structurally comprises a main guide tab, a branch guide tab, a signal line lock hole and a buffer joint.
The supporting and guiding sheets are arranged on two sides of the main guiding sheet and can be perpendicular to the main guiding sheet, the supporting and guiding sheets are symmetrically arranged at two ends of the main guiding sheet, and batteries can be aligned side by side; conversely, the main guide sheet can be arranged asymmetrically and not perpendicular to the main guide sheet. The supporting and guiding sheet is used for welding the positive pole or the negative pole of the battery, so that the battery cores are connected in series or in parallel.
When the battery pack is assembled, data acquisition needs to be carried out on each string of electric cores, the data signal line can be directly connected to the main guide sheet and can also be connected to the branch guide sheet, and the data signal line transmits the state data of the electric cores to a Battery Management System (BMS).
The buffer joint is positioned on the two branch guide pieces, and in the using process of the battery pack, each battery cell can slightly shake relatively, the positive electrode and the negative electrode of the battery cell are welded by laser, and the connecting piece can be stretched or shrunk along with the relative shaking of the battery cell, so that the connecting piece can be fatigued and easily cracked to be disconnected in the long term. The effect of buffering festival is for when electric core rocked relatively, for the connection piece provides the space of rocking relatively to cracked phenomenon just can not appear in this.
The connecting piece can be very long in processing, when the battery pack is used, the required length is cut according to requirements, if each string of the battery pack needs 2 batteries in parallel connection, 2 pairs of guide pieces are cut to serve as the connecting piece, and more batteries can be connected in parallel in the same way. Therefore, the connecting sheets with the same style can be used in different use scenes.
The connecting sheet has the advantages that the connecting sheet is easy to repair, when one electric core in the battery pack has a problem, only the corresponding guide sheets on two sides need to be cut off, the electric core is taken out, then a new electric core is placed in, and the new guide sheets are welded. And other cells connected in parallel are not completely removed. The operational flow of repair is reduced.
The connecting sheet has the advantages of wide application range, simplicity in operation, simplicity in manufacturing and the like.
In the description of the embodiments of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "inner", "outer", and the like indicate an orientation or positional relationship.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the embodiments of the invention, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the embodiments of the present invention, it should be understood that "-" and "-" indicate the same range of two numerical values, and the range includes the endpoints. For example, "A-B" means a range greater than or equal to A and less than or equal to B. "A to B" means a range of not less than A and not more than B.
In the description of the embodiments of the present invention, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A battery pack attachment tab comprising a main guide tab and a branch guide tab; the main guide sheet is of a strip-shaped sheet structure, and the branch guide sheets are connected to two sides of the main guide sheet strip; the branch guide sheet is used for connecting the battery cell units, and the main guide sheet is used for enabling the plurality of battery cell units to form the battery pack.
2. The battery assembly tab of claim 1, further comprising a cushion section; the buffering electricity-saving connection is arranged between the main guide sheet and the branch guide sheet, and the main guide sheet and the branch guide sheet form mechanical flexible connection.
3. The battery pack attachment tab of claim 1 or 2, wherein the buffer section is an undulating conductor section formed by pre-bending a strip-shaped sheet conductor.
4. A battery pack attachment tab according to claim 1 or claim 2 wherein the branch tabs are symmetrically disposed on either side of the main tab strip.
5. The battery pack attachment tab of claim 3, wherein the support tabs are symmetrically disposed on opposite sides of the main tab strip.
6. The battery pack attachment tab of claim 1 or 2, wherein the main guide tab is disposed at both sides of the main guide tab band; the adjacent branch guide vanes on the same side and the branch guide vanes on the corresponding position on the opposite side form a triangle structure.
7. The battery pack connecting tab of claim 3, wherein the main guide tab is disposed at two sides of the main guide tab strip in a staggered manner; the adjacent branch guide vanes on the same side and the branch guide vanes on the corresponding position on the opposite side form a triangle structure.
8. A battery pack comprising a cell unit formed by the battery pack attachment tab connection of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622298.1A CN112599929A (en) | 2020-12-30 | 2020-12-30 | Battery pack connecting sheet and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622298.1A CN112599929A (en) | 2020-12-30 | 2020-12-30 | Battery pack connecting sheet and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112599929A true CN112599929A (en) | 2021-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011622298.1A Pending CN112599929A (en) | 2020-12-30 | 2020-12-30 | Battery pack connecting sheet and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112599929A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142536A1 (en) * | 2022-01-25 | 2023-08-03 | 湖北亿纬动力有限公司 | Battery connector, battery module and battery pack |
| EP4250464A4 (en) * | 2022-01-25 | 2024-05-15 | Eve Power Co., Ltd. | Busbar assembly and cylindrical traction battery module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781578Y (en) * | 2005-02-06 | 2006-05-17 | 姚立和 | Battery |
| CN111558754A (en) * | 2019-07-18 | 2020-08-21 | 国家电投集团西安太阳能电力有限公司 | Novel multi-main-grid solar cell module repairing tool and repairing method thereof |
-
2020
- 2020-12-30 CN CN202011622298.1A patent/CN112599929A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781578Y (en) * | 2005-02-06 | 2006-05-17 | 姚立和 | Battery |
| CN111558754A (en) * | 2019-07-18 | 2020-08-21 | 国家电投集团西安太阳能电力有限公司 | Novel multi-main-grid solar cell module repairing tool and repairing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈美多等, 西南交通大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142536A1 (en) * | 2022-01-25 | 2023-08-03 | 湖北亿纬动力有限公司 | Battery connector, battery module and battery pack |
| EP4250464A4 (en) * | 2022-01-25 | 2024-05-15 | Eve Power Co., Ltd. | Busbar assembly and cylindrical traction battery module |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210402 |
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| RJ01 | Rejection of invention patent application after publication |