CN209169274U - Connection sheet for battery pack and the battery pack with it - Google Patents
Connection sheet for battery pack and the battery pack with it Download PDFInfo
- Publication number
- CN209169274U CN209169274U CN201822239030.4U CN201822239030U CN209169274U CN 209169274 U CN209169274 U CN 209169274U CN 201822239030 U CN201822239030 U CN 201822239030U CN 209169274 U CN209169274 U CN 209169274U
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- Prior art keywords
- connection sheet
- battery
- battery pack
- interconnecting piece
- thickness
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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 discloses a kind of connection sheet for battery pack and the battery packs with it.The connection sheet for being used for battery pack is used to connect the positive pole ear of two batteries or connects the negative lug of two batteries, and the connection sheet includes: interconnecting piece, and thinning area is provided on the interconnecting piece, and the thickness of the thinning area is less than the thickness of the interconnecting piece.Connection sheet according to the present utility model for battery pack guarantees that the negative lug of the positive pole ear of two neighboring battery or two batteries can be attached by connection sheet by the way that interconnecting piece is arranged.By the way that thinning area is arranged, the thickness due to interconnecting piece can be prevented thicker, and cause the melting penetration power of the welding position of interconnecting piece and battery pole ear limited, reliability so as to cause connection sheet and welding battery is poor, and then the stability for causing two batteries to connect is poor, guarantees connection sheet and welding battery high reliablity.
Description
Technical field
The utility model relates to battery technology fields, in particular to a kind of connection sheet for battery pack and have
Its battery pack.
Background technique
Currently, power battery mostly uses quadrate lithium battery packet.The manufacturing technology of quadrate lithium battery packet includes: supersonic welding
Connect, the welding techniques such as laser welding, for example, wherein ultrasonic bonding can by the positive and negative tab of battery core respectively with aluminum connection sheet and
Copper connection sheet welds together.The tab of battery and the quality of connection sheet welding quality, will directly affect the reliable of battery pack
Property and safety.However, being limited to the process conditions welded at present, it is desirable that the thickness of connection sheet cannot be too thick, otherwise needs phase
Higher energy could be welded on the tab of battery.The thickness of connection sheet can not be required too thin simultaneously, otherwise easily
Cause penetrating for welding position.
That is, therefore penetration power when existing welding structure can not analyze connection sheet and tab welding works as ultrasound
When wave soldering receives the thickness limitation of process conditions or connection sheet, penetration power when welding will be damaged, so as to cause can not be true
The reliability and quality for protecting connection sheet and tab welding, finally will affect the electrical efficiency of connection sheet, are unable to satisfy battery pack
Use demand.
Utility model content
In view of this, the utility model is directed to a kind of connection sheet for battery pack, to solve connection sheet and battery
The problem of tab welding poor reliability.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
The connection sheet for battery pack of the utility model embodiment is used to connect the positive pole ear or connection of two batteries
The negative lug of two batteries, the connection sheet include: interconnecting piece, and thinning area, the thinning area are provided on the interconnecting piece
Thickness be less than the interconnecting piece thickness.
Some embodiments according to the present utility model, connection sheet further include: positioning region, the positioning region and the interconnecting piece
It is connected, and is provided with location hole on the positioning region.
Further, the quantity at least two of the location hole.
Specifically, the thickness of the positioning region is identical as the thickness of the interconnecting piece.
Some embodiments according to the present utility model, the thinning area with a thickness of 0.6mm-0.9mm.
Some embodiments according to the present utility model, the interconnecting piece with a thickness of 0.9mm-1.2mm.
Specifically, the interconnecting piece has the first stabilizer blade and the second stabilizer blade, first stabilizer blade and second stabilizer blade court
Extend to the direction far from the positioning region.
Further, first stabilizer blade be suitable for be connected with the tab of one of battery, second stabilizer blade suitable for
The tab of another battery is connected.
Some embodiments according to the present utility model, the connection sheet are copper connection sheet or aluminum connection sheet.
Compared with the existing technology, the connection sheet described in the utility model for battery pack has the advantage that
By the way that interconnecting piece is arranged, guarantee that connection sheet can be by the negative of the positive pole ear of two neighboring battery or two batteries
Pole tab is attached.By setting thinning area, the thickness due to interconnecting piece can be prevented thicker, and lead to interconnecting piece and battery
The melting penetration power of the welding position of tab is limited, and the reliability so as to cause connection sheet and welding battery is poor, and then causes
The stability of two batteries connection is poor, guarantees connection sheet and welding battery high reliablity.And by setting thinning area, may be used also
To effectively increase the bonding area of connection sheet and battery pole ear, so as to reduce contact resistance, and then can effectively improve
Stream ability guarantees the good operating stability of battery pack.
Another purpose of the utility model is to propose a kind of battery pack, including the above-mentioned connection for battery pack
Piece.
Compared with the existing technology, battery pack described in the utility model has the advantage that
Battery pack described in the utility model, the connection sheet for connecting battery have interconnecting piece and positioning region, it is ensured that
The reliability and stability of two neighboring battery connection are good, to guarantee that the functional reliability of battery pack is high.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the schematic top plan view of the connection sheet for battery pack of the utility model embodiment；
Fig. 2 is the elevational schematic view of the connection sheet for battery pack.
Description of symbols:
Connection sheet 10, interconnecting piece 1, the first stabilizer blade 11, the second stabilizer blade 12, thinning area 13, positioning region 2, location hole 21, first
Location hole 22, second location hole 23.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model is described in detail below with reference to Fig. 1-Fig. 2 and in conjunction with the embodiments.
Referring to Fig.1 shown in-Fig. 2, it can be used for connecting according to the connection sheet 10 for battery pack of the utility model embodiment
Connect two batteries positive pole ear or connect two batteries negative lug, that is to say, that connection sheet 10 can simultaneously with it is adjacent
The positive pole ear of two batteries is attached, or is attached simultaneously to the negative lug of two neighboring battery, thus by two
A battery electrical connection, and then bigger voltage can be provided for the external world, meet extraneous power demand.
Specifically, as Figure 1-Figure 2, connection sheet 10 may include: interconnecting piece 1, and interconnecting piece 1 can be used for and adjacent two
The negative lug of the positive pole ear of a battery or two batteries is connected.
Specifically, as shown in Fig. 2, being provided with thinning area 13 on interconnecting piece 1, the thickness of thinning area 13 is less than interconnecting piece 1
Therefore thickness when the thickness of interconnecting piece 1 is thicker, can pass through the positive pole ear or two of thinning area 13 and two neighboring battery
The negative lug of a battery is connected, and can realize the connection of connection sheet 10 Yu battery.Thinning area 13 can be formed in interconnecting piece 1
On step groove.
The connection sheet 10 for battery pack of the utility model guarantees that connection sheet 10 can be by phase by the way that interconnecting piece 1 is arranged
The positive pole ear of adjacent two batteries or the negative lug of two batteries are attached.By the way that thinning area 13 is arranged, can prevent
Since the thickness of interconnecting piece 1 is thicker, and cause interconnecting piece 1 and the melting penetration power of the welding position of battery pole ear limited, thus
Cause connection sheet 10 and the reliability of welding battery poor, and then the stability for causing two batteries to connect is poor, guarantees connection
Piece 10 and welding battery high reliablity.And by setting thinning area 13, connection sheet 10 and battery pole ear can also be effectively increased
Bonding area, so as to reduce contact resistance, and then can effectively improve conveyance capacity, guarantee the operation is stable of battery pack
Property is good.
Further, as Figure 1-Figure 2, connection sheet 10 can also include: positioning region 2, and positioning region 2 can be to connection sheet
10 position is positioned, and positioning region 2 is connected with interconnecting piece 1, and location hole 21 is provided on positioning region 2.
In a particular embodiment, when needing to connect two adjacent batteries, positioning region 2 is positioned first, specifically
Ground can be cooperated by positioning pin and location hole 21, positioning region 2 is fixed on designated position, thus by connection sheet 10 into
Row positioning, secondly, welded again to interconnecting piece 1 with battery pole ear, to guarantee determining for connection sheet 10 and welding battery position
Level really, connection sheet 10 and welding battery it is secured.
By the way that positioning region 2 is arranged, it is ensured that battery pole ear and the relative position of connection sheet 10 are accurate, prevent connection sheet 10
There is offset error with the welding position of tab, the welding quality of connection sheet 10 Yu battery can be improved.
Further, the quantity at least two of location hole 21 guarantees positioning region 2 so that connection sheet 10 is completely fixed
Position will not occur mobile and rotate, it is ensured that the accurate positioning of connection sheet 10.In Fig. 1-embodiment shown in Fig. 2,
The quantity of location hole 21 is two, and respectively first positioning hole 22 and second location hole 23 in a particular embodiment can be first
First positioning hole 22 is fixed, secondly second location hole 23 is fixed, so as to position positioning region 2.
In embodiment not shown, the quantity of location hole 21 may be three or four etc..
It should be noted that the diameter of location hole 21 can be arbitrary size, main purpose is by connection sheet 10
Position positioned, therefore, the size of location hole 21 is depending on the size of specific positioning region 2, the outer diameter of positioning pin
It is matched with the diameter of location hole 21, guarantees the accurate positioning of connection sheet 10.
Specifically, the thickness of thickness with interconnecting piece 1 of positioning region 2 is identical, convenient for the processing and manufacturing of connection sheet 10.
Preferably, positioning region 2 and interconnecting piece 1 are integrally formed part, thereby may be ensured that the production efficiency of connection sheet 10 compared with
Height, and production cost can be saved.
Further, thinning area 13 with a thickness of 0.6mm-0.9mm, to meet welding procedure to the need of relatively thin connection sheet
It asks, in a particular embodiment, the thickness of thinning area 13 can be 0.7mm or 0.8mm etc..
Further, interconnecting piece 1 with a thickness of 0.9mm-1.2mm, to meet the needs of welding procedure is to thicker connection sheet,
In a particular embodiment, the thickness of interconnecting piece 1 can be 1mm or 1.1mm etc..
In other words, the battery of different size needs the connection sheet 10 of different-thickness to be attached, when the thicker connection of needs
When piece 10, the tab welding of interconnecting piece 1 and battery other than thinning area 13 is used；When needing relatively thin connection sheet 10, use
The tab welding of thinning area 13 and battery which thereby enhances the versatility of connection sheet 10.
Specifically, as Figure 1-Figure 2, interconnecting piece 1 has the first stabilizer blade 11 and the second stabilizer blade 12, the first stabilizer blade 11 and the
The direction that two stabilizer blades 12 are directed away from positioning region 2 extends, in a particular embodiment, the first stabilizer blade 11 and the second stabilizer blade 12 be suitable for
The positive pole ear or negative lug of battery weld, and therefore, by the first stabilizer blade 11 of setting and the second stabilizer blade 12, can increase company
The bonding area of contact pin 10 and battery pole ear, so as to reduce the contact resistance of connection sheet 10 Yu battery pole ear, and then can be with
The conveyance capacity for effectively improving connection sheet 10 guarantees the good operating stability of battery pack.
Further, the first stabilizer blade 11 be suitable for be connected with the tab of one of battery, the second stabilizer blade 12 suitable for it is another
The tab of a battery is connected, when connection sheet 10 is used to connect the positive pole ear of two neighboring battery, the first stabilizer blade 11 and second
The positive pole ear of two neighboring battery can be attached by stabilizer blade 12, or when connection sheet 10 is for connecting two neighboring battery
When negative lug, the negative lug of two neighboring battery can be attached by the first stabilizer blade 11 and the second stabilizer blade 12.
In some alternative embodiments, the first stabilizer blade 11 can be connected with the positive pole ear of one of battery, and second
Foot 12 is suitable for being connected with the negative lug of another battery.
Specifically, as shown in Fig. 2, the first stabilizer blade 11 and the second stabilizer blade 12 include thinning area 13, in specific embodiment
In, when the thickness of the first stabilizer blade 11 and the second stabilizer blade 12 is blocked up, the first stabilizer blade 11 and the second stabilizer blade 12 is caused to weld with battery pole ear
When the melting penetration power of socket part position is limited, thinning area 13 on the first stabilizer blade 11 and the second stabilizer blade 12 and battery can be passed through
Tab is welded, to guarantee the high reliablity that the first stabilizer blade 11 and the second stabilizer blade 12 are connect with battery pole ear.
Some embodiments according to the present utility model, connection sheet 10 are copper connection sheet or aluminum connection sheet, copper connection
Piece or aluminum connection sheet conduct electricity very well, and are easy welding with battery pole ear, can both guarantee two neighboring battery connection
Good conductivity, and can guarantee that the connection of two batteries is relatively easy to.Optionally, copper connection sheet is for connecting two neighboring electricity
The negative lug in pond, aluminum connection sheet are used to connect the positive pole ear of two neighboring battery.
According to the battery pack of the utility model another aspect embodiment, the connection for battery pack including above-described embodiment
Piece 10.Battery pack can be used on electric car.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of connection sheet (10) for battery pack, the connection sheet (10) is used to connect the positive pole ear or company of two batteries
Connect the negative lug of two batteries, which is characterized in that the connection sheet (10) includes: interconnecting piece (1), on the interconnecting piece (1)
It is provided with thinning area (13), the thickness of the thinning area (13) is less than the thickness of the interconnecting piece (1).
2. the connection sheet (10) according to claim 1 for battery pack, which is characterized in that further include: positioning region (2),
The positioning region (2) is connected with the interconnecting piece (1), and location hole (21) are provided on the positioning region (2).
3. the connection sheet (10) according to claim 2 for battery pack, which is characterized in that the number of the location hole (21)
Amount at least two.
4. the connection sheet (10) according to claim 2 for battery pack, which is characterized in that the thickness of the positioning region (2)
It spends identical as the thickness of the interconnecting piece (1).
5. the connection sheet (10) according to claim 1 for battery pack, which is characterized in that the thickness of the thinning area (13)
Degree is 0.6mm-0.9mm.
6. the connection sheet (10) according to claim 1 for battery pack, which is characterized in that the thickness of the interconnecting piece (1)
Degree is 0.9mm-1.2mm.
7. the connection sheet (10) according to claim 2 for battery pack, which is characterized in that the interconnecting piece (1) has
First stabilizer blade (11) and the second stabilizer blade (12), first stabilizer blade (11) and second stabilizer blade (12) are directed away from the positioning
The direction in portion (2) extends.
8. the connection sheet (10) according to claim 7 for battery pack, which is characterized in that first stabilizer blade (11) is suitable
It is connected in the tab of one of battery, second stabilizer blade (12) is suitable for being connected with the tab of another battery.
9. the connection sheet (10) according to claim 1 for battery pack, which is characterized in that the connection sheet (10) is copper
Matter connection sheet or aluminum connection sheet.
10. a kind of battery pack, which is characterized in that including the company according to claim 1 to 9 for battery pack
Contact pin (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239030.4U CN209169274U (en) | 2018-12-28 | 2018-12-28 | Connection sheet for battery pack and the battery pack with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239030.4U CN209169274U (en) | 2018-12-28 | 2018-12-28 | Connection sheet for battery pack and the battery pack with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209169274U true CN209169274U (en) | 2019-07-26 |
Family
ID=67327859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822239030.4U Active CN209169274U (en) | 2018-12-28 | 2018-12-28 | Connection sheet for battery pack and the battery pack with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209169274U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792448A (en) * | 2021-01-13 | 2021-05-14 | 瑞浦能源有限公司 | Method for improving welding reliability of power battery tab |
| CN114284619A (en) * | 2020-09-18 | 2022-04-05 | 南京泉峰科技有限公司 | Battery pack |
| WO2024000906A1 (en) * | 2022-06-27 | 2024-01-04 | 江苏时代新能源科技有限公司 | Battery cell, battery, and electric device |
| WO2024183436A1 (en) * | 2023-03-09 | 2024-09-12 | 欣旺达动力科技股份有限公司 | Single battery |
-
2018
- 2018-12-28 CN CN201822239030.4U patent/CN209169274U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284619A (en) * | 2020-09-18 | 2022-04-05 | 南京泉峰科技有限公司 | Battery pack |
| CN114284619B (en) * | 2020-09-18 | 2024-06-11 | 南京泉峰科技有限公司 | Battery pack |
| CN112792448A (en) * | 2021-01-13 | 2021-05-14 | 瑞浦能源有限公司 | Method for improving welding reliability of power battery tab |
| WO2024000906A1 (en) * | 2022-06-27 | 2024-01-04 | 江苏时代新能源科技有限公司 | Battery cell, battery, and electric device |
| WO2024183436A1 (en) * | 2023-03-09 | 2024-09-12 | 欣旺达动力科技股份有限公司 | Single battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210104 Address after: 1098 Dacheng Road, East Park, Xishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: Honeycomb energy technology (Wuxi) Co.,Ltd. Address before: 213200 168 Huacheng Road, Jintan District, Changzhou, Jiangsu Patentee before: SVOLT Energy Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |