CN204216127U - For connecting the connector of multiple cell, battery modules and electrokinetic cell bag - Google Patents
For connecting the connector of multiple cell, battery modules and electrokinetic cell bag Download PDFInfo
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- CN204216127U CN204216127U CN201420674342.7U CN201420674342U CN204216127U CN 204216127 U CN204216127 U CN 204216127U CN 201420674342 U CN201420674342 U CN 201420674342U CN 204216127 U CN204216127 U CN 204216127U
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- Prior art keywords
- hole
- connector
- bonding pad
- connecting piece
- multiple cell
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- 238000005516 engineering process Methods 0.000 description 2
- 201000009032 substance abuse Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a kind of connector, battery modules and electrokinetic cell bag for connecting multiple cell, this connector comprises conductive connecting piece, described conductive connecting piece offers and multiplely engraves hole, described engraving in hole is provided with bonding pad, described bonding pad welds with the positive terminal of described cell, engrave inside, hole described in the projection of described relief valve on described conductive connecting piece falls into, the projected area of described bonding pad on described conductive connecting piece is less than the projected area of described relief valve on described conductive connecting piece.According to the connector for connecting multiple cell of the present utility model, when being abused appears in battery, relief valve gas out can be discharged by the space of engraving between bore edges and welded bridge, avoids the blast of cell.
Description
Technical field
The utility model belongs to battery interconnection technique field, particularly relates to a kind of connector for connecting multiple cell and battery modules.
Background technology
Power cells for new energy vehicles bag is composed in series by multiple battery modules usually, and each battery modules is composed in parallel by multiple cell, cell quantity wherein, tens of at least, as many as thousands of.The cell of so many quantity needs to be connected in parallel by the connector of conduction.The capacity of electrokinetic cell bag is determined by the capacity of battery modules, and the capacity of battery modules is multiplied by number in parallel by the capacity of cell to be determined, and cell capacity is less, and the cell quantity that battery modules reaches the capacity of as much just requires more.
The packaged form of cell is mainly divided into three kinds, square duricrust, cylindrical duricrust and square Soft Roll, and wherein, cylindrical duricrust is because the feature of its packaged form, and its capacity is usually all less, in the majority within 10Ah.
Battery is when occurring being abused, the volatile substance meeting generating gasification such as its electrolyte inside, volume rapid expansion, therefore, often prop up hard-shell type cell to I haven't seen you for ages around positive terminal design relief valve, once the seal casinghousing internal gas bulbs of pressure arrive greatly certain value, relief valve just can be opened gas leakage.
As shown in Figure 1, existing battery modules realizes being connected in parallel of multiple cell 2a with a unitary conductive sheet 1a.The advantage of this connected mode is that structure is simple, cost is low, its shortcoming be to a certain degree or certain area blocked relief valve 21a, particularly when multiple cell parallel connection, use a unitary conductive sheet, more likely the relief valve 21a of certain cell of centre is covered completely.Such design is under abuse accident, and cell decompression protection causes obstruction, and produces security risk.If gas bleeder valve is blocked, gas can not be released in time, will likely cause cell to explode.
Utility model content
Technical problem to be solved in the utility model be for the existing conducting strip be connected in parallel for multiple cell to a certain degree or certain area blocked relief valve, the defect that cell may be caused to explode when battery appearance abuses, provides a kind of connector for connecting multiple cell.
It is as follows that the utility model solves the problems of the technologies described above adopted technical scheme:
A kind of connector for connecting multiple cell is provided, described cell at least arranges relief valve around positive terminal, described connector comprises conductive connecting piece, described conductive connecting piece offers and multiplely engraves hole, described engraving in hole is provided with bonding pad, described bonding pad welds with the positive terminal of described cell, engrave inside, hole described in the projection of described relief valve on described conductive connecting piece falls into, the projected area of described bonding pad on described conductive connecting piece is less than the projected area of described relief valve on described conductive connecting piece.
Further, described bonding pad is in-line, engraves the relative both sides at the edge in hole described in its two ends are connected to.
Further, described bonding pad is in-line, engraves the edge in hole, engrave the inside in hole described in the other end is suspended in described in one end of described bonding pad is connected to.
Further, described bonding pad is cross, engraves the edge in hole described in four end points of described bonding pad are all connected to.
Further, engrave hole described in equidistantly to arrange on described conductive connecting piece.
Further, described conduction connector is positioned at described in engrave hole surrounding be provided with conduct current hole.
Further, the shape that multiple on described conductive connecting piece engrave hole is all identical or part is identical.
Further, engraving hole described in is circular port, slotted eye or polygonal hole.
According to the connector for connecting multiple cell of the present utility model, the projection of relief valve on conductive connecting piece falls into engraves inside, hole, and the projected area of bonding pad on conductive connecting piece is less than the projected area of relief valve on conductive connecting piece, namely engrave hole and do not block relief valve, and bonding pad has also only hidden a part for relief valve, when being abused appears in battery, relief valve gas out can be discharged by the space of engraving between bore edges and welded bridge, avoids the blast of cell.
In addition, the utility model additionally provides a kind of battery modules, comprise multiple cell, positive strap and negative straps, described cell at least arranges relief valve around positive terminal, and at least described positive strap is the above-mentioned connector for connecting multiple cell.
In addition, the utility model additionally provides a kind of electrokinetic cell bag, comprises multiple above-mentioned battery modules be connected in series.
Accompanying drawing explanation
Fig. 1 is that existing battery modules realizes the schematic diagram (perspective) be connected in parallel of multiple cell with a unitary conductive sheet;
Fig. 2 is the structural representation of the connector for connecting multiple cell that the utility model one embodiment provides;
Fig. 3 is the structural representation of the connector for connecting multiple cell that another embodiment of the utility model provides;
Fig. 4 is the structural representation of the connector for connecting multiple cell that another embodiment of the utility model provides;
Fig. 5 is the structural representation of the connector for connecting multiple cell that another embodiment of the utility model provides;
Fig. 6 is the structural representation of the connector for connecting multiple cell that another embodiment of the utility model provides;
Fig. 7 is the structural representation of the battery modules that the utility model one embodiment provides;
Fig. 8 is the structural representation of the battery modules that another embodiment of the utility model provides.
Reference numeral in Figure of description is as follows:
1, conductive connecting piece; 11, hole is engraved; 12, bonding pad; 13, conduct current hole; 2, cell; 21, relief valve; 22, positive terminal.
Embodiment
The technical problem solved to make the utility model, technical scheme and beneficial effect are clearly understood, below in conjunction with drawings and Examples, are described in further detail the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Fig. 4 and Fig. 7, the connector for connecting multiple cell that the utility model one embodiment provides, comprise conductive connecting piece 1, described conductive connecting piece 1 offers and multiplely engraves hole 11, described engraving in hole 11 is provided with bonding pad 12, described bonding pad 3 welds with the positive terminal 22 of described cell 2, engrave hole 11 described in the projection of described relief valve 21 on described conductive connecting piece 1 falls into inner, the projected area of described bonding pad 12 on described conductive connecting piece 1 is less than the projected area of described relief valve 21 on described conductive connecting piece 1.The size of the projected area of bonding pad 12 on described conductive connecting piece 1, need the electric current when use considering whole electrokinetic cell bag and single cell, area too little possibility resistance can be large, but area is too large, then can cause too much blocking to relief valve 21.The size of the projected area of bonding pad 12 on described conductive connecting piece 1 can be such as the 20-80% of the area of section engraving hole 11.
In the present embodiment, as shown in Figure 4, described bonding pad 12, in in-line, is engraved the edge in hole 11, is engraved the inside in hole 11 described in the other end is suspended in described in one end of described bonding pad 12 is connected to.The positive terminal 22 of the one end and cell of engraving the inside in hole 11 described in being suspended in of described bonding pad 12 welds.
In the present embodiment, the shape that multiple on described conductive connecting piece 1 engrave hole 11 is all identical, and is all circular.Circular hole 11 of engraving ensures while maximum area exposes relief valve, can exceed again the conductive area taking conductive connecting piece 1.
Certainly, in other embodiments, also can be that multiple shape engraving hole 11 is identical, such as, embodiment shown in Fig. 5, the leftmost side engrave hole 11 for square opening, and other two are engraved hole 11 for circular port.
Certainly, in other embodiments, to engrave hole 11 can also be oval, square and the regular figure such as polygon.
Certainly, in other embodiments, engraving hole 11 can also be irregular figure.
In the present embodiment, as shown in Figure 4, engrave hole 21 described in equidistantly to arrange on described conductive connecting piece 1.
According to the connector for connecting multiple cell of the utility model above-described embodiment, the projection of relief valve on conductive connecting piece falls into engraves inside, hole, and the projected area of bonding pad on conductive connecting piece is less than the projected area of relief valve on conductive connecting piece, namely engrave hole and do not block relief valve, and bonding pad has also only hidden a part for relief valve, when being abused appears in battery, relief valve gas out can be discharged by the space of engraving between bore edges and welded bridge, avoids the blast of cell.
As shown in Figure 2, be a kind of connector for connecting multiple cell that another embodiment of the utility model provides.Be with difference embodiment illustrated in fig. 4, in this embodiment, described bonding pad 12, in in-line, engraves the relative both sides at the edge in hole 11 described in its two ends are connected to.
As shown in Figure 3, be a kind of connector for connecting multiple cell that another embodiment of the utility model provides.Be with difference embodiment illustrated in fig. 4, in this embodiment, described bonding pad 12, in cross, engraves the edge in hole 11 described in four end points of described bonding pad 12 are all connected to.
Certainly, in other unshowned embodiment, bonding pad 12 can also have other shape.
As shown in Fig. 6 and Fig. 8, it is a kind of connector for connecting multiple cell that another embodiment of the utility model provides.Be with difference embodiment illustrated in fig. 4, in this embodiment, the surrounding of engraving hole 11 described in described conduction connector 1 is positioned at is provided with conduct current hole 13.Control and regulation can be carried out to current direction in conduct current hole 13, collects caused local overheating to avoid the local of electric current on conductive connecting piece.
In addition, as shown in Figure 7, the utility model one embodiment still provides a kind of battery modules, comprise multiple cell 2, positive strap and negative straps, described cell 2 at least arranges relief valve 21 around positive terminal 22, and at least described positive strap is the above-mentioned connector for connecting multiple cell.In the present embodiment, connector as shown in Figure 4.In the present embodiment, negative straps is identical with positive strap, and negative straps is identical with the type of attachment of the type of attachment of the negative terminal of multiple cell and the positive terminal of positive strap and multiple cell.Certainly, in other embodiments, if do not arrange relief valve around negative terminal, then negative straps also can be a unitary conductive sheet (do not arrange and engrave hole).
In addition, as shown in Figure 8, the utility model another embodiment still provides a kind of battery modules, comprise multiple cell 2, positive strap and negative straps, described cell 2 at least arranges relief valve 21 around positive terminal 22, and at least described positive strap is the above-mentioned connector for connecting multiple cell.In the present embodiment, connector as shown in Figure 6.In the present embodiment, negative straps is identical with positive strap structure, and negative straps is identical with the type of attachment of the type of attachment of the negative terminal of multiple cell and the positive terminal of positive strap and multiple cell.Certainly, in other embodiments, if do not arrange relief valve around negative terminal, then negative straps also can be a unitary conductive sheet (do not arrange and engrave hole).
In addition, the utility model additionally provides a kind of electrokinetic cell bag, comprises multiple above-mentioned battery modules be connected in series.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. one kind for connecting the connector of multiple cell, described cell at least arranges relief valve around positive terminal, it is characterized in that, described connector comprises conductive connecting piece, described conductive connecting piece offers and multiplely engraves hole, described engraving in hole is provided with bonding pad, described bonding pad welds with the positive terminal of described cell, engrave inside, hole described in the projection of described relief valve on described conductive connecting piece falls into, the projected area of described bonding pad on described conductive connecting piece is less than the projected area of described relief valve on described conductive connecting piece.
2. the connector for connecting multiple cell according to claim 1, is characterized in that, described bonding pad is in-line, engraves the relative both sides at the edge in hole described in its two ends are connected to.
3. the connector for connecting multiple cell according to claim 1, is characterized in that, described bonding pad is in-line, engraves the edge in hole, engrave the inside in hole described in the other end is suspended in described in one end of described bonding pad is connected to.
4. the connector for connecting multiple cell according to claim 1, is characterized in that, described bonding pad is cross, engraves the edge in hole described in four end points of described bonding pad are all connected to.
5. the connector for connecting multiple cell according to claim 1, is characterized in that, described in engrave hole and equidistantly arrange on described conductive connecting piece.
6. the connector for connecting multiple cell according to claim 1, is characterized in that, the surrounding of engraving hole described in described conduction connector is positioned at is provided with conduct current hole.
7. the connector for connecting multiple cell according to claim 1-6 any one, is characterized in that, the shape that multiple on described conductive connecting piece engrave hole is all identical or part is identical.
8. the connector for connecting multiple cell according to claim 7, is characterized in that, described in engrave hole be circular port, slotted eye or polygonal hole.
9. a battery modules, comprise multiple cell, positive strap and negative straps, described cell at least arranges relief valve around positive terminal, it is characterized in that, at least described positive strap is the connector for connecting multiple cell described in claim 1 to 8 any one.
10. an electrokinetic cell bag, is characterized in that, comprises multiple battery modules as claimed in claim 9 be connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674342.7U CN204216127U (en) | 2014-11-12 | 2014-11-12 | For connecting the connector of multiple cell, battery modules and electrokinetic cell bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674342.7U CN204216127U (en) | 2014-11-12 | 2014-11-12 | For connecting the connector of multiple cell, battery modules and electrokinetic cell bag |
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| Publication Number | Publication Date |
|---|---|
| CN204216127U true CN204216127U (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420674342.7U Active CN204216127U (en) | 2014-11-12 | 2014-11-12 | For connecting the connector of multiple cell, battery modules and electrokinetic cell bag |
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| CN (1) | CN204216127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611327A (en) * | 2017-08-25 | 2018-01-19 | 大连中比动力电池有限公司 | A kind of lithium ion battery module and battery bag |
-
2014
- 2014-11-12 CN CN201420674342.7U patent/CN204216127U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611327A (en) * | 2017-08-25 | 2018-01-19 | 大连中比动力电池有限公司 | A kind of lithium ion battery module and battery bag |
| CN107611327B (en) * | 2017-08-25 | 2023-06-09 | 大连中比动力电池有限公司 | Lithium ion battery module and battery pack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220104 Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION New Energy Vehicle Co.,Ltd. Address before: 510030 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |