CN220568912U - Sampling circuit of battery module and electric vehicle - Google Patents
Sampling circuit of battery module and electric vehicle Download PDFInfo
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- CN220568912U CN220568912U CN202322189949.8U CN202322189949U CN220568912U CN 220568912 U CN220568912 U CN 220568912U CN 202322189949 U CN202322189949 U CN 202322189949U CN 220568912 U CN220568912 U CN 220568912U
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- 238000005070 sampling Methods 0.000 title claims abstract description 128
- 239000004964 aerogel Substances 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Abstract
The application provides a sampling circuit of a battery module and an electric vehicle, wherein the sampling circuit of the battery module comprises a first sampling flexible circuit board, a second sampling flexible circuit board, a first connector and a second connector; the second connector is connected with the first sampling flexible circuit board and is used for being connected with a battery management system of the battery module; the first sampling flexible circuit board is a double-sided board without a through hole, and the second sampling flexible circuit board is a single-sided board, wherein the second sampling flexible circuit board is connected with the bottom circuit of the first sampling flexible circuit board through a first connector. The application can realize the sampling of the large-span battery module. Compared with the prior art, the method and the device have the advantages that the risk of via hole failure can be avoided when the sampling of the large-span battery module is realized, and further, the higher sampling stability is realized, and the process cost is also realized.
Description
Technical Field
The application relates to the field of battery systems, in particular to a sampling circuit of a battery module and an electric vehicle.
Background
Typically, the battery module is provided with a sampling flexible circuit board (Flexible Printed Circuit, FPC) to sample the physical parameters of the battery module. At present, a sampling flexible circuit board of an existing battery module is manufactured by adopting a double-panel via hole process, however, the length of the sampling flexible circuit board cannot exceed 1.2m by adopting the process, wherein if the length of the sampling flexible circuit board manufactured by adopting the process exceeds 1.2m, the risk of via hole failure is increased, and therefore, the length of the sampling flexible circuit board cannot exceed 1.2m by adopting the process, so that the process can limit the sampling flexible circuit board to cover a large-span battery module of which the length exceeds 1.2m, and even if the sampling flexible circuit board of which the length exceeds 1.2m is manufactured by adopting the process without considering the increase of the risk of via hole failure, the process cost is obviously increased.
Disclosure of Invention
An object of the embodiment of the application is to provide a sampling circuit of battery module and electric motor car for realize the sampling to large-span battery module. Compared with the prior art, the method has the advantages that the risk of via hole failure can be avoided while sampling of the large-span battery module is realized, so that the method has higher sampling stability and has the advantage of process cost.
In a first aspect, the utility model provides a sampling circuit of a battery module, which comprises a first sampling flexible circuit board, a second sampling flexible circuit board, a first connector and a second connector;
the first sampling flexible circuit board is used for sampling physical parameters of a front end module of the battery module, and the second sampling flexible circuit board is used for sampling physical parameters of a rear end module of the battery module;
the second connector is connected with the first sampling flexible circuit board and is used for being connected with a battery management system of the battery module;
the first sampling flexible circuit board is a double-sided board without a through hole, and the second sampling flexible circuit board is a single-sided board, wherein the second sampling flexible circuit board is connected with the bottom circuit of the first sampling flexible circuit board through the first connector.
In the first aspect of the application, the first sampling flexible circuit board and the second sampling flexible circuit board can be connected through the first connector, and the battery module with large span can be covered to sample the physical parameters of the battery module. Further, as the first sampling flexible circuit board is a double-sided board without a through hole, and the second sampling flexible circuit board is a single-sided board, the problem of unstable adoption caused by failure of the through hole can be avoided, and better sampling stability is achieved. Further, because the single panel has lower manufacturing cost than the double panel, the application can reduce the use amount of the double panel and finally reduce the manufacturing cost through the splicing mode of the single panel and the double panel.
In an alternative embodiment, the physical parameters of the back-end module include a voltage of the back-end module and a temperature of the back-end module, and the physical parameters of the front-end module include a voltage of the front-end module and a temperature of the front-end module.
This alternative embodiment may sample the voltage of the front end module and the temperature of the front end module through the first sampling flexible circuit board, and may sample the voltage of the back end module and the temperature of the front end module through the second sampling flexible circuit board.
In an alternative embodiment, the first connector is a plug-in connector.
The optional embodiment can take the plug-in connector as the first connector according to design requirements, wherein the plug-in connector as the first connector has the advantage of convenience in connection.
In an alternative embodiment, the first connector is a pin connector.
The pin type connector can be used as the first connector according to design requirements, wherein the pin type connector has the advantage of stable connection.
In an alternative embodiment, the first connector includes a first PIN and a second PIN, wherein the first PIN is connected to the first sampling flexible circuit board, and the second PIN is connected to the second sampling flexible circuit board.
This alternative embodiment is connected to the first sampling flexible circuit board via a first PIN and to the second sampling flexible circuit board via a second PIN.
In an alternative embodiment, the first connector is provided with a buffer structure for absorbing tolerances generated by connecting the first and second sampling flexible circuit boards.
This alternative embodiment is able to absorb the tolerances created by connecting the first and second sampling flexible circuit boards by having a buffer structure.
In an alternative embodiment, the cushioning structure is an aerogel blanket.
This alternative embodiment enables the aerogel blanket to be used as a cushioning structure, wherein the aerogel blanket has the advantage of being cost effective.
In an alternative embodiment, the second connector is a pin connector.
This alternative embodiment may employ a pin connector as the second connector.
In an alternative embodiment, the first sampling flexible circuit board includes a solder gold finger that is soldered with a pin of the second connector.
The first sampling flexible circuit board and the pins of the second connector can be welded by welding a golden hand in the alternative embodiment.
In a second aspect, the present utility model provides an electric vehicle comprising a sampling circuit according to any one of the previous embodiments.
Because the electric vehicle has the adoption circuit, the electric vehicle has the advantages of stable sampling, low manufacturing cost and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a sampling circuit of a battery module 1 according to an embodiment of the present application;
fig. 2 is a schematic structural view of a first sampling flexible circuit board 5 disclosed in the embodiment of the present application;
fig. 3 is a schematic structural diagram of a second sampling flexible circuit board according to an embodiment of the present disclosure.
Icon: 1-a battery module; 2-a single cell; 3-a first connector; 4-a second connector; 5-a first sampling flexible circuit board; 51-welding a golden finger; 6-a second sampling flexible circuit board.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a sampling circuit of a battery module 1 according to an embodiment of the present disclosure. As shown in fig. 1, the sampling circuit is covered on a battery module 1 composed of a plurality of unit cells 2. Further, as shown in fig. 1, the sampling circuit includes a first sampling flexible circuit board 5, a second sampling flexible circuit board 6, a first connector 3 and a second connector 4, wherein the first sampling flexible circuit board 5 is used for sampling physical parameters of a front end module of the battery module 1, and the second sampling flexible circuit board 6 is used for sampling physical parameters of a rear end module of the battery module 1. Further, the second connector 4 is connected with the first sampling flexible circuit board 5 and is used for being connected with a battery management system of the battery module 1, further, the first sampling flexible circuit board 5 is a double-sided board without a through hole, and the second sampling flexible circuit board 6 is a single-sided board, wherein the second sampling flexible circuit board 6 is connected with a bottom circuit of the first sampling flexible circuit board 5 through the first connector 3.
In the embodiment of the application, the first sampling flexible circuit board 5 and the second sampling flexible circuit board 6 can be connected through the first connector 3, so that the large-span battery module 1 can be covered to sample the physical parameters thereof, wherein the physical parameters sampled by the second sampling flexible circuit board 6 can be transmitted to the first sampling flexible circuit board 5 through the first connector 3. Further, since the first sampling flexible circuit board 5 is a double-sided board without a via hole, and the second sampling flexible circuit board 6 is a single-sided board, the problem of unstable adoption caused by failure of the via hole can be avoided, and better sampling stability is achieved. Further, because the single panel has lower manufacturing cost than the double panel, the application can reduce the use amount of the double panel and finally reduce the manufacturing cost through the splicing mode of the single panel and the double panel.
In the embodiment of the present application, please refer to fig. 2, fig. 2 is a schematic structural diagram of a first sampling flexible circuit board disclosed in the embodiment of the present application. As shown in fig. 2, the first sampling flexible circuit board 5 includes a TOP protective film pi+ad glue or the like. Further, referring to fig. 3, fig. 3 is a schematic structural diagram of a second sampling flexible circuit board according to an embodiment of the present disclosure. As shown in fig. 3, the second sampling flexible circuit board 6 has a single-layer structure compared to a structure of a sampling flexible circuit board.
In this embodiment, as an optional implementation manner, the physical parameters of the back-end module include a voltage of the back-end module and a temperature of the back-end module, and the physical parameters of the front-end module include a voltage of the front-end module and a temperature of the front-end module.
This alternative embodiment can sample the voltage of the front end module and the temperature of the front end module through the first sampling flexible circuit board 5, and can sample the voltage of the back end module and the temperature of the front end module through the second sampling flexible circuit board 6. As an example, as shown in fig. 1, the second sampling flexible circuit board 6 may sample the resulting voltages V33-V64.
In the present embodiment, as an alternative implementation manner, the first connector 3 is a plug-in connector.
The present alternative embodiment may use a plug-in connector as the first connector 3 according to design requirements, wherein the plug-in connector as the first connector 3 has an advantage of convenient connection.
For the above alternative embodiments, in particular, the plug-in connector comprises connection terminals, by means of which the first connector 3 can be electrically connected in plug-in form to the first sampling flexible circuit board 5 and the second sampling flexible circuit board 6.
In the embodiment of the present application, as an alternative implementation manner, the first connector 3 is a pin connector.
The present alternative embodiment may use a pin connector as the first connector 3 according to design requirements, wherein the pin connector as the first connector 3 has an advantage of stable connection.
In the embodiment of the present application, as an alternative implementation manner, the first connector 3 includes a first PIN and a second PIN, where the first PIN is connected to the first sampling flexible circuit board 5, and the second PIN is connected to the second sampling flexible circuit board 6.
This alternative embodiment is connected to the first sampling flexible circuit board 5 by a first PIN and to the second sampling flexible circuit board 6 by a second PIN.
In the present embodiment, as an alternative implementation, the first connector 3 is provided with a buffer structure for absorbing the tolerance generated by connecting the first sampling flexible circuit board 5 and the second sampling flexible circuit board 6.
This alternative embodiment is able to absorb the tolerances created by connecting the first and second sampling flexible circuit boards 5, 6 by having a buffer structure.
In the embodiment of the present application, as an alternative implementation manner, the buffer structure is an aerogel jacket.
This alternative embodiment enables the aerogel blanket to be used as a cushioning structure, wherein the aerogel blanket has the advantage of being cost effective.
In the embodiment of the present application, as an alternative implementation manner, the second connector 4 is a pin connector. This alternative embodiment may employ a pin connector as the second connector 4.
In this embodiment, as an alternative implementation, as shown in fig. 1, the first sampling flexible circuit board 5 includes a solder gold finger 51, and the solder gold finger is soldered with a pin of the second connector 4.
This alternative embodiment may solder the first sampling flexible circuit board 5 to the pins of the second connector 4 by soldering a gold hand.
In addition, the embodiment of the application also provides an electric vehicle, wherein the high electric vehicle comprises the sampling circuit according to any one of the previous embodiments. Because the electric vehicle provided by the embodiment of the application has the circuit adopted by the application, the electric vehicle has the advantages of stable sampling, manufacturing cost and the like.
The indirect coupling or communication connection may be in electrical, mechanical, or other form.
Further, the units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Furthermore, functional modules in various embodiments of the present application may be integrated together to form a single portion, or each module may exist alone, or two or more modules may be integrated to form a single portion.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above is only an example of the present application, and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. The sampling circuit of the battery module is characterized by comprising a first sampling flexible circuit board, a second sampling flexible circuit board, a first connector and a second connector;
the first sampling flexible circuit board is used for sampling physical parameters of a front end module of the battery module, and the second sampling flexible circuit board is used for sampling physical parameters of a rear end module of the battery module;
the second connector is connected with the first sampling flexible circuit board and is used for being connected with a battery management system of the battery module;
the first sampling flexible circuit board is a double-sided board without a through hole, and the second sampling flexible circuit board is a single-sided board, wherein the second sampling flexible circuit board is connected with the bottom circuit of the first sampling flexible circuit board through the first connector.
2. The sampling circuit of claim 1, wherein the physical parameters of the back-end module comprise a voltage of the back-end module and a temperature of the back-end module, and the physical parameters of the front-end module comprise a voltage of the front-end module and a temperature of the front-end module.
3. The sampling circuit of claim 1, wherein the first connector is a plug-in connector.
4. The sampling circuit of claim 1, wherein the first connector is a pin connector.
5. The sampling circuit of claim 1, wherein the first connector comprises a first PIN and a second PIN, wherein the first PIN is connected to the first sampling flex circuit board and the second PIN is connected to the second sampling flex circuit board.
6. The sampling circuit of claim 1, wherein the first connector is provided with a buffer structure for absorbing tolerances created by connecting the first sampling flexible circuit board and the second sampling flexible circuit board.
7. The sampling circuit of claim 6, wherein the buffer structure is an aerogel blanket.
8. The sampling circuit of claim 1, wherein the second connector is a pin connector.
9. The sampling circuit of claim 8, wherein the first sampling flexible circuit board comprises a solder gold finger soldered with a pin of the second connector.
10. An electric vehicle, characterized in that it comprises a sampling circuit according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322189949.8U CN220568912U (en) | 2023-08-14 | 2023-08-14 | Sampling circuit of battery module and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322189949.8U CN220568912U (en) | 2023-08-14 | 2023-08-14 | Sampling circuit of battery module and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220568912U true CN220568912U (en) | 2024-03-08 |
Family
ID=90091233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322189949.8U Active CN220568912U (en) | 2023-08-14 | 2023-08-14 | Sampling circuit of battery module and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220568912U (en) |
-
2023
- 2023-08-14 CN CN202322189949.8U patent/CN220568912U/en active Active
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