CN207651580U - Battery modules - Google Patents
Battery modules Download PDFInfo
- Publication number
- CN207651580U CN207651580U CN201721149285.0U CN201721149285U CN207651580U CN 207651580 U CN207651580 U CN 207651580U CN 201721149285 U CN201721149285 U CN 201721149285U CN 207651580 U CN207651580 U CN 207651580U
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- CN
- China
- Prior art keywords
- battery modules
- circuit board
- connecting portion
- sampling circuit
- connection sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of battery modules comprising：Multiple single batteries；Sampling circuit board, is installed on the top of single battery, and the both sides of sampling circuit board are equipped with multiple sampling units；And connection sheet, it is correspondingly connected with positioned at the both sides of sampling circuit board and with the pole of multiple single batteries, connection sheet includes the first fixed part and the first connecting portion with the first fixed part at an angle；Wherein, sampling unit is fixedly connected by ultrasonic bonding with the first connecting portion of connection sheet.Compared with the existing technology, the utility model battery modules have the following advantages：The connection sheet of the pad of sampling circuit board and battery modules is linked together using ultrasonic bonding, improves the reliability of monomer battery voltage sampling；Sampling circuit board can save cumbersome harness in module production and connect work, improve production efficiency；It is simple in structure, reduce the space occupied in battery modules, reduces manufacturing cost, avoid the security risk that aluminium wire is brought.
Description
Technical field
The utility model belongs to field of batteries, and more specifically, the utility model is related to a kind of battery modules.
Background technology
Currently, lithium ion battery has high energy density, good cycle and advantages of environment protection, thus it is extensive
Applied to consumer electronics industry, electric vehicle industry and energy storage field.
The voltage sample and heat management system of inside battery are the core cells of battery management system, traditional battery modules
Voltage sampling method is welded copper conductor and connection sheet using ultrasonic wave, is fabricated to harness isolation board, and carry out to voltage
Sampling.But harness isolation board production process is cumbersome, occupancy battery modules space is big, and the degree of automation is low, cost of manufacture and week
Phase is high, cannot meet market competition demand.
In order to overcome problem above, the prior art to substitute harness isolation board using sampling circuit board combined leads bonding technology
Technique is bonded by using aluminium wire and realizes being electrically connected for sampling circuit board and connection sheet.But since aluminium wire diameter is small, intensity
Low, Fracture Failure Risk is big, has seriously affected the reliability of sampling circuit board voltage sample, it is difficult to meet the reality of power battery
Requirement.
In view of this, it is necessory to provide a kind of battery modules that can improve voltage sample reliability.
Utility model content
The purpose of this utility model is that：It overcomes the deficiencies of existing technologies, providing a kind of can improve voltage sample reliability
Battery modules.
To achieve the goals above, the utility model provides a kind of battery modules comprising：
Multiple single batteries；
Sampling circuit board, is installed on the top of single battery, and the both sides of sampling circuit board are equipped with multiple sampling units；And
Connection sheet is correspondingly connected with positioned at the both sides of sampling circuit board and with the pole of multiple single batteries, and connection sheet includes
First fixed part and first connecting portion with the first fixed part at an angle；
Wherein, the sampling unit is fixedly connected by ultrasonic bonding with the first connecting portion of connection sheet.
As a kind of improvement of the utility model battery modules, the sampling unit is flexible structure.
As a kind of improvement of the utility model battery modules, the sampling unit includes the second fixed part and is fixed with second
The second connecting portion of portion's connection.
As a kind of improvement of the utility model battery modules, the second connecting portion includes basal disc and pad.
As a kind of improvement of the utility model battery modules, the pad is located at the center of second connecting portion, and pad is logical
Ultrasonic bonding is crossed to be fixedly connected with first connecting portion.
As a kind of improvement of the utility model battery modules, the thickness of the pad is 0.1mm~0.3mm.
As a kind of improvement of the utility model battery modules, the pole electricity of first fixed part and multiple single batteries
Connection.
As a kind of improvement of the utility model battery modules, the thickness of the first connecting portion is 0.1mm~0.5mm.
As a kind of improvement of the utility model battery modules, the first connecting portion is vertically connected at the first fixed part.
Compared with the existing technology, the utility model battery modules have the following technical effects：
1) it uses ultrasonic bonding to connect the connection sheet of the pad of sampling circuit board and battery modules, improves monomer electricity
The reliability of cell voltage sampling；
2) sampling circuit board can save cumbersome harness in module production and connect work, improve production efficiency；
3) the weight ratio harness of sampling circuit board is light, can further increase the energy density of battery modules；
4) simple in structure, reduce the space occupied in battery modules, reduces manufacturing cost, avoid what aluminium wire was brought
Security risk.
Description of the drawings
With reference to the accompanying drawings and detailed description, the utility model battery modules and its technique effect are carried out specifically
It is bright, wherein：
Fig. 1 is the structural schematic diagram of the utility model battery modules.
Fig. 2 is the enlarged diagram of circle portion A in Fig. 1 battery modules.
Fig. 3 is the structural schematic diagram of sampling circuit board in the utility model battery modules.
Fig. 4 is the structural schematic diagram of connection sheet in the utility model battery modules.
Wherein, the reference numerals are as follows:
10 single battery, 212 second connecting portion, 302 first fixed part
20 sampling circuit board, 214 basal disc, 304 first connecting portion
202 sampling unit, 216 pad, 306 location hole
210 second fixed part, 30 connection sheet
Specific implementation mode
In order to make the purpose of this utility model, technical solution and its advantageous effects be more clear, below in conjunction with attached drawing
And specific implementation mode, the present invention will be further described in detail.It should be understood that tool described in this specification
Body embodiment is not to limit the utility model just for the sake of explaining the utility model.
It please refers to Fig.1 with shown in Fig. 2, the utility model battery modules include：
Multiple single batteries 10；
Sampling circuit board 20, is installed on the top of single battery 10, and the both sides of sampling circuit board 20 are equipped with multiple sampling units
202；And
Connection sheet 30 is located at the both sides of sampling circuit board 20 and company corresponding with the pole of multiple single batteries 10 (not shown)
It connects, connection sheet 30 includes the first fixed part 302 and the first connecting portion 304 with the first fixed part 302 at an angle；
Wherein, sampling unit 202 is fixedly connected by ultrasonic bonding with the first connecting portion 304 of connection sheet 30.
Sampling circuit board 20 is flexible PCB, includes the flexible circuit mainboard of a block length bar shaped, mainboard is located at multiple lists
The centre position of body battery 10, and across at the top of multiple single batteries 10.Sampling unit 202 is flexible structure, sampling unit 202
Including the second fixed part 210 and the second connecting portion 212 being connect with the second fixed part 210, because sampling unit 202 is flexible ties
Structure can bend to arbitrary angle between the second fixed part 210 and second connecting portion 212, with ensure second connecting portion 212 with
First connecting portion 304 is fixedly connected.Second connecting portion 212 includes basal disc 214 and pad 216, basal disc 214 and the second fixed part
210 are prepared by polyimide material, and pad 216 is two-sided conductive welding disk, and shape is rectangular sheet, pad 216
In the center of second connecting portion 212, pad 216 by the first connecting portion 304 of ultrasonic bonding and connection sheet 30 Face to face
It is soldered, to realize that sampling circuit board 20 is electrically connected with the reliable of connection sheet 30.Pad 216 can be with second connecting portion 212 1
It is body formed.An embodiment according to the present utility model, the soldering tip of ultrasonic welding machine, weld nest are cantilevered.
Shown in please referring to Fig.1 to Fig.4, battery modules include multiple connection sheets 30, and connection sheet 30 is used for multiple monomers electricity
10 connection in series-parallel of pond, sampling circuit board 20 are located at the centre of two rows of connection sheets 30, and connection sheet 30 is arranged side by side with sampling circuit board 20,
The pole that each connection sheet 30 is located at the same side with two neighboring single battery 10 is connect, and connection sheet 30 includes the first fixed part
302 and the first connecting portion 304 that is connect with the first fixed part 302, the folder between the first fixed part 302 and first connecting portion 304
Angle is 75 °~100 °.
In the shown embodiment, the first fixed part 302 and 304 vertical setup of first connecting portion, so set, convenient for section
The about space of battery modules also allows for welding procedure implementation.In other implementations, the first fixed part 302 and first connects
The angle of socket part 304 is not construed as limiting, as long as disclosure satisfy that welding procedure.
The pole of first fixed part 302 and multiple single batteries 10 is electrically connected, sampling unit 202 by ultrasonic bonding with
First connecting portion 304 is fixedly connected, to realize that the reliability of voltage sample, the first fixed part 302 are equipped with multiple location holes
306, it is used for the positioning welding of laser-beam welding machine.There are two first connecting portions 304 for each setting of connection sheet 30, one of them first
Interconnecting piece 304 is fixedly connected by ultrasonic bonding with sampling unit 202, and connection sheet 30 preferentially uses the good aluminium of electric conductivity
Piece.It is avoided instead of 20 combined leads bonding technology of sampling circuit board by the connection of sampling circuit board 20 and connection sheet 30
The failure risk of aluminium wire fracture, while reducing the space occupied in battery modules.
It is set on first fixed part 302 there are two the location hole 306 for laser-beam welding machine positioning, first connecting portion 304
Thickness is 0.1mm~0.5mm, and the thickness of pad 216 is 0.1mm~0.3mm.
It should be noted that the number in 20 up-sampling portion 202 of sampling circuit board can be according to the quantity of single battery 10 (i.e.
The number of connection sheet 30) it is increased and decreased.
Shown in Fig. 1 to Fig. 4, by taking 6 series connection (1P6S) battery modules as an example, the utility model battery is described in detail
The assembling process of module：
1) ultrasonic bonding that 6 series connection (1P6S) battery modules carry out sampling circuit board 20 and connection sheet 30, sampling are chosen
The material of pad 216 is fine aluminium 1060 in circuit board 20, and the material of thickness 0.2mm, connection sheet 30 are fine aluminium 1060, and first connects
The thickness of socket part 304 is 0.5mm；
2) single battery 10 is assembled according to 1P6S battery modules series systems, connection sheet 30 is assembled to single battery 10
Connection sheet 30 is welded on single battery 10 by top using laser Welding, and sampling circuit board 20 is then placed on two rows of connect
Between contact pin 30, and sampling unit 202 is aligned with first connecting portion 304, then assembles sampling circuit board 20 in single battery
Pad 216 after fixed sample circuit board 20, is fixed in first connecting portion 304 by 10 surfaces using special tooling, main to use
Cantilevered soldering tip/weld nest ultrasonic welding machine is welded, and welding parameter is energy 40J, pressure 20Psi, and amplitude 35 will sample
The pad 216 of circuit board 20 carries out ultrasonic bonding with first connecting portion 304 and is combined；
3) ultrasonic bonding is carried out to multiple sampling units 202 of sampling circuit board 20 and first connecting portion 304, is formed reliable
Voltage sample connection.
In conjunction with above to the description of specific embodiment of the present invention it is found that compared with the existing technology, the utility model
Battery modules have the following technical effects：
1) pad 216 of sampling circuit board 20 is connect using ultrasonic bonding with the connection sheet 30 of battery modules, is improved
The reliability of 10 voltage sample of single battery；
2) sampling circuit board 20 can save cumbersome harness in module production and connect work, improve production efficiency；
3) the weight ratio harness of sampling circuit board 20 is light, can further increase the energy density of battery modules；
4) simple in structure, reduce the space occupied in battery modules, reduces manufacturing cost, avoid using aluminium wire band
The security risk come.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying carries out change and modification appropriate.Therefore, the utility model is not limited to specific implementation disclosed and described above
Mode should also be as falling into the protection scope of the claims of the present utility model to some modifications and changes of the utility model.
In addition, although having used some specific terms in this specification, these terms are merely for convenience of description, not to this reality
With novel composition any restrictions.
Claims (7)
1. a kind of battery modules, which is characterized in that including：
Multiple single batteries；
Sampling circuit board, is installed on the top of single battery, and the both sides of sampling circuit board are equipped with multiple sampling units；And
Connection sheet is correspondingly connected with positioned at the both sides of sampling circuit board and with the pole of multiple single batteries, and connection sheet includes first
Fixed part and first connecting portion with the first fixed part at an angle；
Wherein, the sampling unit includes the second fixed part and the second connecting portion that is connect with the second fixed part, second connecting portion packet
Basal disc and pad are included, the pad is fixedly connected by ultrasonic bonding with the first connecting portion of connection sheet.
2. battery modules according to claim 1, which is characterized in that the sampling unit is flexible structure.
3. battery modules according to claim 1, which is characterized in that the pad is located at the center of second connecting portion.
4. battery modules according to claim 1, which is characterized in that the thickness of the pad is 0.1mm~0.3mm.
5. battery modules according to claim 1, which is characterized in that the pole of first fixed part and multiple single batteries
Column is electrically connected.
6. battery modules according to claim 1, which is characterized in that the thickness of the first connecting portion be 0.1mm~
0.5mm。
7. battery modules according to claim 1, which is characterized in that the first connecting portion is vertically connected at the first fixation
Portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721149285.0U CN207651580U (en) | 2017-09-08 | 2017-09-08 | Battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721149285.0U CN207651580U (en) | 2017-09-08 | 2017-09-08 | Battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207651580U true CN207651580U (en) | 2018-07-24 |
Family
ID=62887451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721149285.0U Active CN207651580U (en) | 2017-09-08 | 2017-09-08 | Battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207651580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117214299A (en) * | 2023-11-07 | 2023-12-12 | 宁德时代新能源科技股份有限公司 | Method, device, system, electronic equipment and medium for welding detection |
-
2017
- 2017-09-08 CN CN201721149285.0U patent/CN207651580U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117214299A (en) * | 2023-11-07 | 2023-12-12 | 宁德时代新能源科技股份有限公司 | Method, device, system, electronic equipment and medium for welding detection |
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