CN207199734U - Battery modules - Google Patents
Battery modules Download PDFInfo
- Publication number
- CN207199734U CN207199734U CN201721147263.0U CN201721147263U CN207199734U CN 207199734 U CN207199734 U CN 207199734U CN 201721147263 U CN201721147263 U CN 201721147263U CN 207199734 U CN207199734 U CN 207199734U
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- CN
- China
- Prior art keywords
- battery modules
- connection sheet
- side wall
- terminal pad
- fixed part
- 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
Abstract
The utility model discloses a kind of battery modules, including：Multiple cells；Sampling circuit board, it is arranged at the top of multiple cells, it includes mainboard and the sampling unit positioned at mainboard both sides, and connection sheet, it is installed on the top of cell and positioned at the both sides of sampling circuit board, connection sheet includes fixed part and the side wall angled with fixed part, the pole connection of fixed part and cell；Wherein, the side wall of sampling unit and connection sheet passes through riveting.Compared with prior art, the utility model battery modules are by sampling circuit board and connection sheet riveting, and strength of reliability is high, small to structural rigidity dependence, and simple in construction, cost is low, and production efficiency is high, it is easy to accomplish automation.
Description
Technical field
The utility model belongs to field of batteries, more specifically, the utility model is related to a kind of battery modules.
Background technology
Lithium ion battery has high energy density, good cycle and advantages of environment protection, therefore is widely used
In consumer electronics industry, electric automobile 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
Low-voltage and temperature sampling are acquired by wire harness division board.But because wire harness division board production process is cumbersome, no
Be easy to automated production, efficiency is low, cost is high, the rival demand in market can not be met.
In correlation technique, also have using flexible PCB (FPC) combined leads bonding technology come substitute traditional wire harness every
From plate technique, mainly it is bonded using aluminium wire and is attached FPC and aluminium sheet.But because aluminium wire diameter is small, aluminium wire fracture is lost
It is big to imitate risk, has a strong impact on the reliability of FPC voltage samples, it is difficult to meet the requirements for life of electrokinetic cell.
In view of this, it is necessory to provide a kind of battery modules that can improve battery voltage sampling reliability.
Utility model content
The purpose of this utility model is：Overcome the deficiencies in the prior art, there is provided one kind can improve battery voltage sampling can
By the battery modules of property.
To achieve these goals, the utility model provides a kind of battery modules, including：
Multiple cells；
Sampling circuit board, the top of multiple cells being arranged at, it includes mainboard and the sampling unit positioned at mainboard both sides,
And
Connection sheet, be installed on cell top and positioned at sampling circuit board both sides, connection sheet include fixed part and
The pole connection of the angled side wall with fixed part, fixed part and cell；
Wherein, the side wall of the sampling unit and connection sheet passes through riveting.
One kind as the utility model battery modules is improved, and the sampling unit is flexible structure, including extension and with
The fixed area of extension connection, the extension are connected with mainboard.
One kind as the utility model battery modules is improved, and terminal pad, the terminal pad are provided with the fixed area
The center of fixed area is embedded in, the terminal pad is connected with fixed area by flexible circuit.
One kind as the utility model battery modules is improved, and the first riveted holes, the company are provided with the terminal pad
Position in the side wall of contact pin corresponding to the riveted holes of terminal pad first is provided with the second riveted holes, and by rivet by terminal pad and
The side wall of connection sheet is fixed together.
As the utility model battery modules one kind improve, first riveted holes and the second riveted holes it is a diameter of
1mm~5mm.
One kind as the utility model battery modules is improved, and the thickness of the terminal pad is 0.1mm~0.3mm.
One kind as the utility model battery modules is improved, angle between the fixed part and side wall for 75 °~
100°。
One kind as the utility model battery modules is improved, and the angle between the fixed part and side wall is 90 °.
One kind as the utility model battery modules is improved, and the thickness of the side wall is 0.1mm~0.5mm.
Relative to prior art, the utility model battery modules have following technique effect：
1) connection sheet of the terminal pad of sampling circuit board and battery modules is linked together using rivet, rivets effect
It is good, product fraction defective is advantageously reduced, improves the reliability of battery voltage sampling；
2) the connection reliability intensity of sampling circuit board and connection sheet is high, reduces the dependence to structural rigidity；
3) riveting process is simple in construction, and cost is low, it is easy to accomplish automation, production efficiency are high.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, the utility model battery modules and its advantageous effects are carried out detailed
Describe in detail it is bright, wherein：
Fig. 1 is the structural representation of the utility model battery modules.
Fig. 2 is the enlarged diagram of circle portion A in Fig. 1.
Fig. 3 is the structural representation of sampling circuit board in the utility model battery modules.
Fig. 4 is the enlarged diagram of circle portion B in Fig. 1.
Fig. 5 is the structural representation of connection sheet in the utility model battery modules.
Reference：
10- cells；20- sampling circuit boards；200- mainboards；202- sampling units；203- extensions；204- fixed areas；
206- terminal pads；The riveted holes of 208- first；30- connection sheets；302- fixed parts；304- side walls；306- Laser Welding fabrication holes；308-
Second riveted holes；40- rivets.
Embodiment
In order that goal of the invention of the present utility model, technical scheme and advantageous effects become apparent from, below in conjunction with attached
Figure and embodiment, the utility model is further elaborated.It should be appreciated that described in this specification
Embodiment is intended merely to explain the utility model, is not intended to limit the utility model.
Refer to shown in Fig. 1 to Fig. 5, the utility model battery modules include：
Multiple cells 10；
Sampling circuit board 20, the top of multiple cells 10 is arranged at, it includes mainboard 200 and positioned at 200 liang of mainboard
The sampling unit 202 of side, and
Connection sheet 30, it is installed on the top of cell 10 and includes positioned at the both sides of sampling circuit board 20, connection sheet 30
Fixed part 302 and the side wall 304 angled with fixed part 302, the pole (not shown) of fixed part 302 and cell 10
Connection；
Wherein, the side wall 304 of sampling unit 202 and connection sheet 30 passes through riveting.
Referring to shown in Fig. 2 and Fig. 3, sampling circuit board 20 is flexible PCB, positioned at the top of multiple cells 10,
Include the flexible circuit mainboard 200 of a block length bar shaped, mainboard 200 is located at the centre position of multiple cells 10, and across
The top of multiple cells 10.
Sampling unit 202 is flexible structure, including extension 203 and the fixed area 204 that is connected with extension 203, extension
203 are connected with mainboard 200 by flexible circuit, because sampling unit 202 is flexible structure, between fixed area 204 and extension 203
It can be any angle.Terminal pad 206 is provided with fixed area 204, terminal pad 206 is two-sided conductive lands, and it is shaped as square
Shape flake terminal pad 206 is mainly embedded in the center of fixed area 204, and is connected with fixed area 204 by flexible circuit.
The thickness of terminal pad 206 is 0.1mm~0.3mm, and its thickness is more than or equal to the thickness of fixed area 204, in illustrated embodiment
In, the thickness of terminal pad 206 is more than the thickness of fixed area 204, and after terminal pad 206 is embedded in fixed area 204, two sides is protruded
The outside of fixed area 204, is easy to terminal pad 206 to be connected with connection sheet 30, while ensure the intensity of terminal pad 206.In terminal pad 206
1~4 the first riveted holes 208 is provided with, a diameter of 1~5mm of the first riveted holes 208, in the shown embodiment, is provided with
Two the first riveted holes 208, are respectively arranged on the both sides of terminal pad 206, and by the rivet 40 of adaptation by terminal pad 206 with being connected
The side wall 304 of piece 30 is fixedly connected, and terminal pad 206 and connection sheet 30 are linked together using rivet 40, it is possible to provide battery electricity
The reliability of sampling is pressed, and improves joint efficiency.Wherein, the position of the position of sampling unit 202 and the side wall 304 of connection sheet 30 is one by one
It is corresponding.
Refer to shown in Fig. 1 to Fig. 5, battery modules include multiple connection sheets 30, and connection sheet 30 is good using electric conductivity
Aluminium flake, be installed on cell 10 top and positioned at sampling circuit board 20 both sides, be arranged side by side with sampling circuit board 20,
Connection sheet 30 includes fixed part 302 and the side wall 304 being connected with fixed part 302, the angle between fixed part 302 and side wall 304
For 75~100 °, in the shown embodiment, fixed part 302 and the vertical setup of side wall 304, it is arranged such, is easy to save battery
The space of module, also allow for riveting process implementation.In other embodiments, the angle between fixed part 302 and side wall 304 is not
It is construed as limiting, as long as disclosure satisfy that riveting process.
Fixed part 302 is electrically connected with the pole of cell 10, and laser welder is provided with the fixed part 302 of connection sheet 30
Skill hole 306, for the positioning welding of laser-beam welding machine, and connection sheet 30 is fixed on to the top of cell 10.Each connection
Piece 30 is provided with two side walls 304, and the second riveted holes 308, the position of the second riveted holes 308 and terminal pad are provided with side wall 304
The position correspondence of first riveted holes 208 on 206, a diameter of 1~5mm of the second riveted holes 308, and by rivet 40 by terminal pad
206 are fixedly connected with side wall 304, so as to realize the electrical connection of connection sheet 30 and sampling circuit board 20, and it is right by sampling unit 202
Voltage is sampled.Wire bonding sampling technique is substituted by sampling circuit board 20 and the riveting process of connection sheet 30, rivets work
The bonding strength of skill significantly improves, and reduces the dependence to structural rigidity, and the high yield rate riveted, reduces product
Fraction defective.
It should be noted that no matter the angle between the fixed part 302 and side wall 304 of connection sheet 30 has much, sampling electricity
The sampling unit 202 of road plate 20 can be adjusted accordingly, it is ensured that sampling unit due to the flexibility of itself according to the shape of connection sheet 30
202 position and the side wall 304 of connection sheet 30 correspond, and so as to realize the riveting of terminal pad 206 and side wall 304, finally make
Sampling circuit board 20 is realized with connection sheet 30 and electrically connected.
Below in conjunction with embodiment, by taking 6 series connection (1P6S) battery modules as an example, to the utility model battery modules
Assembling process is described in detail：
1) 2 a diameter of 1.1mm the first riveted holes 208 are set in the both sides of terminal pad 206；
2) 2 a diameter of 1.1mm the second riveted holes 308 are set in the side wall 304 of connection sheet 30, and ensure the second riveting
Connect the position correspondence of the riveted holes 208 of hole 308 and first；
3) cell 10 is assembled according to 1P6S battery modules series system, assembling two rows at the top of cell 10 connects
Contact pin 30, the pole of the fixed part 302 of connection sheet 30 and cell 10 is carried out by solder bond using laser Welding；
4) sampling circuit board 20 is assembled between two row's connection sheets 30 at the top of cell 10, makes sampling circuit board 20
It is arranged side by side with the connection sheet 30 of both sides, and corresponds the side wall 304 of sampling unit 202 and connection sheet 30, then will sampling
Circuit board 20 is fixed on the top of cell 10, and is successively consolidated the side wall 304 of terminal pad 206 and connection sheet 30 by rivet 40
It is fixed；
5) side wall 304 of terminal pad 206 and connection sheet 30 is riveted by combination using hand Pliers type riveting machine, sampled point riveting one by one
Connect, form reliable voltage sample connection.
From the above description, it can be seen that relative to prior art, the utility model battery modules have following technique effect：
1) connection sheet 30 of the terminal pad 206 of sampling circuit board 20 and battery modules is linked together using rivet 40,
It is good to rivet effect, advantageously reduces product fraction defective, improves the reliability of battery voltage sampling；
2) sampling circuit board 20 and the connection reliability intensity of connection sheet 30 are high, reduce the dependence to structural rigidity；
3) riveting process is simple in construction, and cost is low, it is easy to accomplish automation, production efficiency are high.
According to above-mentioned principle, the utility model can also carry out appropriate change and modification to above-mentioned embodiment.
Therefore, the utility model is not limited to embodiment disclosed and described above, to some modifications of the present utility model
It should also be as falling into scope of the claims of the present utility model with change.In addition, although one is used in this specification
A little specific terms, but these terms are merely for convenience of description, do not form any restrictions to the utility model.
Claims (9)
- A kind of 1. battery modules, it is characterised in that including：Multiple cells；Sampling circuit board, the top of multiple cells being arranged at, it includes mainboard and the sampling unit positioned at mainboard both sides, andConnection sheet, it is installed on the top of cell and positioned at the both sides of sampling circuit board, connection sheet includes fixed part and with consolidating Determine the angled side wall in portion, the pole connection of fixed part and cell；Wherein, the side wall of the sampling unit and connection sheet passes through riveting.
- 2. battery modules according to claim 1, it is characterised in that the sampling unit is flexible structure, including extension The fixed area being connected with extension, the extension are connected with mainboard.
- 3. battery modules according to claim 2, it is characterised in that terminal pad, the company are provided with the fixed area The center that disk is embedded in fixed area is connect, the terminal pad is connected with fixed area by flexible circuit.
- 4. battery modules according to claim 3, it is characterised in that the first riveted holes, institute are provided with the terminal pad State the position in the side wall of connection sheet corresponding to the riveted holes of terminal pad first and be provided with the second riveted holes, and will be connected by rivet The side wall of disk and connection sheet is fixed together.
- 5. battery modules according to claim 4, it is characterised in that the diameter of first riveted holes and the second riveted holes For 1mm~5mm.
- 6. battery modules according to claim 3, it is characterised in that the thickness of the terminal pad is 0.1mm~0.3mm.
- 7. battery modules according to claim 1, it is characterised in that the angle between the fixed part and side wall is 75 ° ~100 °.
- 8. battery modules according to claim 1, it is characterised in that the angle between the fixed part and side wall is 90 °.
- 9. battery modules according to claim 1, it is characterised in that the thickness of the side wall is 0.1mm~0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721147263.0U CN207199734U (en) | 2017-09-08 | 2017-09-08 | Battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721147263.0U CN207199734U (en) | 2017-09-08 | 2017-09-08 | Battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207199734U true CN207199734U (en) | 2018-04-06 |
Family
ID=61791693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721147263.0U Active CN207199734U (en) | 2017-09-08 | 2017-09-08 | Battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207199734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155988A1 (en) * | 2019-01-30 | 2020-08-06 | 宁德时代新能源科技股份有限公司 | Sampling circuit board for battery module, and battery module |
-
2017
- 2017-09-08 CN CN201721147263.0U patent/CN207199734U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020155988A1 (en) * | 2019-01-30 | 2020-08-06 | 宁德时代新能源科技股份有限公司 | Sampling circuit board for battery module, and battery module |
| US11563240B2 (en) | 2019-01-30 | 2023-01-24 | Contemporary Amperex Technology Co., Limited | Sampling circuit board for battery module and battery module |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |