CN212517294U - Battery module and battery pack - Google Patents
Battery module and battery pack Download PDFInfo
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- CN212517294U CN212517294U CN202021408436.1U CN202021408436U CN212517294U CN 212517294 U CN212517294 U CN 212517294U CN 202021408436 U CN202021408436 U CN 202021408436U CN 212517294 U CN212517294 U CN 212517294U
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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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Abstract
The application relates to the field of batteries, discloses a battery module and battery package, include: the system comprises at least two batteries and an information acquisition assembly for acquiring the state information of at least one battery; the information acquisition assembly is symmetrically provided with two acquisition interfaces along the two ends of the battery arrangement direction. The battery module comprises at least two batteries and an information acquisition assembly for acquiring the state information of the batteries. The information acquisition assembly is symmetrically provided with two acquisition interfaces along two ends of the arrangement direction of the batteries, so that when the battery modules are connected to form a battery pack, the acquisition interfaces of two adjacent battery modules can be simultaneously ensured to be on the same side, and the positive electrode and the negative electrode are connected on the same side, therefore, the corresponding connection can be completed by adopting a short wiring harness, more space does not need to be reserved for the wiring harness in the battery pack, and the wiring harness comprises a conductive assembly for connecting the negative electrode of the first battery module and the positive electrode of the second battery module and an information transmission assembly for connecting the two adjacent battery modules.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery module and a battery pack.
Background
At present, new energy automobiles are developed more and more rapidly, and have been widely used in our daily life due to the advantages of small environmental pollution and long endurance. Because the vehicle body space is small and the structure is compact, the space reserved for installing the battery pack is small, and therefore, the reduction of the occupied space of the battery pack becomes a hot point of research.
The battery package includes a plurality of battery modules and monitors voltage and temperature collection system etc. of battery voltage and temperature in the battery package nowadays, and the battery module is connecting the in-process that forms the battery package, and the pencil has influenced the occupation space of battery package.
SUMMERY OF THE UTILITY MODEL
The application discloses battery module adopts two-way signal acquisition interface, has improved the space utilization of battery package.
In order to achieve the purpose, the application provides the following technical scheme:
a battery module, comprising: the system comprises at least two batteries and an information acquisition assembly for acquiring the state information of at least one battery;
the information acquisition assembly is symmetrically provided with two acquisition interfaces along two ends of the arrangement direction of the batteries.
The battery module comprises at least two batteries and an information acquisition assembly for acquiring the state information of the batteries. The information acquisition assembly is symmetrically provided with two acquisition interfaces along two ends of the arrangement direction of the batteries, so that when the battery modules are connected to form a battery pack, the acquisition interfaces of two adjacent battery modules can be simultaneously ensured to be on the same side, and the positive electrode and the negative electrode are connected on the same side, therefore, the corresponding connection can be completed by adopting a short wiring harness, more space does not need to be reserved for the wiring harness in the battery pack, and the wiring harness comprises a conductive assembly for connecting the negative electrode of the first battery module and the positive electrode of the second battery module and an information transmission assembly for connecting the battery modules.
Drawings
Fig. 1 is a schematic connection diagram of a battery module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;
fig. 3 is an exploded view of a battery module according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a wire harness board assembly of a battery module according to an embodiment of the present disclosure;
fig. 5 is an exploded view of a wire harness board assembly of a battery module according to an embodiment of the present application.
Icon: 1-a first battery module; 2-a second battery module; 3-an information acquisition component; 4-an information transfer component; 31-an acquisition interface; 32-a collection end; 33-a flexible circuit board; 311-a first acquisition interface; 312 — a second acquisition interface; 313-a third acquisition interface; 314-a fourth acquisition interface; 41-a first collection harness; 42-a second acquisition harness; 11-a cover plate; 12-an end plate; 13-side plate; 14-a battery assembly; 15-a wiring harness panel assembly; 16-a lead-out support; 151-harness plate; 152-a conductive bar; 153-main electrode conductor bar.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1 to 5, an embodiment of the present application provides a battery module, including: at least two batteries, and an information collecting component 3 for collecting status information of at least one battery, wherein the status information includes, but is not limited to, voltage and/or temperature information; the two ends of the information acquisition component 3 along the arrangement direction of the batteries are symmetrically provided with two acquisition interfaces 31.
The battery module comprises at least two batteries and an information acquisition assembly 3 for acquiring the state information of at least one battery. The two acquisition interfaces 31 are symmetrically arranged at the two ends of the information acquisition assembly 3 along the arrangement direction of the batteries, on one hand, when the battery modules are connected to form a battery pack, the acquisition interfaces 31 of the two adjacent battery modules can be simultaneously ensured to be at the same side, and the positive electrode and the negative electrode are connected at the same side, so that the corresponding connection can be completed by adopting a short wiring harness, more space does not need to be reserved for the wiring harness in the battery pack, and the wiring harness comprises a conductive assembly for connecting the negative electrode of the first battery module and the positive electrode of the second battery module and an information transmission assembly for connecting the battery modules. On the other hand, the model of battery module is the same, does not need additionally to increase material and production control degree of difficulty, therefore in practical application, the user can select battery module collection interface 31 and the information transmission subassembly of being connected with one side according to the actual need in battery package internal design space to carry out information acquisition, does not need additionally to increase the design space of the inside collection pencil of battery package.
Therefore, above-mentioned battery module possesses two signal acquisition interfaces, and the battery package that forms by the battery module can realize the two-way signal acquisition of battery module, practices thrift the wiring space of battery package and reduces the wiring design degree of difficulty, has reduced the occupation space of battery package to a certain extent, has avoided the problem of the material that causes because of adopting two kinds of battery modules among the prior art and the increase of production control degree of difficulty simultaneously.
In one possible implementation, as shown in fig. 2 and 3, the battery module further includes a bottom plate, a cover plate 11, two end plates 12, two side plates 13, and a battery assembly 14 located in a receiving cavity formed by the bottom plate, the cover plate 11, the end plates 12, and the side plates 13. The cover plate 11 is used for protecting the internal structure of the battery module and preventing foreign matters from entering; the bottom plate, the two end plates 12 and the two side plates 13 are welded and fixed into a frame, and a plurality of batteries form important parts of the battery module; two acquisition interfaces 31 in the information acquisition assembly 3 are respectively located at two ends where the battery module cover plate 11 is connected with the two end plates 12.
Optionally, the battery module further comprises a wiring harness board assembly; the wire harness plate assembly 15 is located between the battery assembly 14 and the cover plate 11; the wire harness board assembly 15 comprises a wire harness board 151 and a conductive bar 152 installed on the wire harness board 151, at least two batteries are electrically connected through the conductive bar 152 to form a positive electrode and a negative electrode of the battery module, and the information acquisition assembly 3 is in signal connection with the conductive bar 152.
With continued reference to fig. 3 in conjunction with fig. 4 and 5, the battery module further includes a wire harness plate assembly 15, the wire harness plate assembly 15 being located between the battery assembly 14 and the cover plate 11. The harness board assembly 15 includes a harness board 151, and a conductive bar 152 and a main electrode conductive bar 153 mounted on the harness board 151. In the battery module, a plurality of batteries in the battery assembly 14 are connected in series and parallel through the conductive bar 152, and different battery modules are connected in series and parallel through the conductive bar 153 of the main electrode. The battery module is provided with a leading-out support 16 at each end of the end plate 12 for connecting and fixing the main electrode conductive bar 153 in the wiring harness assembly 15.
Optionally, the information acquisition assembly 3 includes an acquisition end 32 and a flexible circuit board 33 in signal connection with the acquisition end 32; the acquisition end 32 is in signal connection with the battery; two ends of the flexible circuit board 33 are respectively connected with the two acquisition interfaces 31 through signals.
In one possible implementation, with continued reference to fig. 4 and 5, the collection terminal 32 collects status information of the battery in the battery assembly 14 through signal connection with the conductive bar 152 and the main conductive bar 152, and the status information of the battery collected by the collection terminal 32 may specifically include one or both of voltage information and temperature information. The acquisition end 32 sends the acquired state information to a flexible circuit board 33 in signal connection with the acquisition end 32, and the flexible circuit board 33 is in signal connection with the acquisition interfaces 31 at two ends of the flexible circuit board 33.
It should be noted that the two acquisition interfaces 31 are both low-voltage connectors, and are used for transmitting the temperature and voltage signals of the battery module to the battery management system of the battery module. The flexible circuit board 33 contains an acquisition circuit therein for acquiring voltage and/or temperature information of the battery assembly 14. The wiring harness board 151 is used for mounting and fixing the components such as the conductor bar 152 and the flexible wiring board 33.
Optionally, the collection tip 32 includes at least one of a collection sheet of metal or a first collection beam.
In a possible implementation manner, the collecting terminal 32 is in signal connection with the conductive bar 152 and the main electrode conductive bar 153 by using a nickel plate, and is used for collecting voltage and/or temperature information of the battery assembly 14;
in another possible implementation manner, the collecting terminal 32 performs signal collection by using a first collecting harness in signal connection with the conductive bar 152 and the main electrode conductive bar 153. Specifically, the first collection harness has one end in signal connection with the conductive bar 152 and the other end in signal connection with the flexible circuit board 33 for collecting voltage and/or temperature information of the battery assembly 14.
Optionally, the information collecting assembly 3 is mounted on the harness board.
With continued reference to fig. 4, the information collecting assembly 3 is mounted on the harness board so that the collecting terminal 32 is directly connected to the conductive bar on the harness board, thereby saving the wiring space inside the battery module.
The embodiment of the application also provides a battery pack which comprises any one of the battery modules.
The battery module possesses two signal acquisition end 32 mouths, and the battery package that forms by the battery module can realize the two-way signal acquisition of module, practices thrift the wiring space of battery package and reduces the wiring design degree of difficulty, has reduced the occupation space of battery module to a certain extent.
Optionally, the battery pack includes a first battery module 1 and a second battery module 2, and the positive electrode of the first battery module 1 and the negative electrode of the second battery module 2 are located on the same side of the battery pack and are electrically connected through a conductive component.
It should be noted that the battery pack includes at least two battery modules, for example, two adjacent battery modules in the battery pack are as the first battery module 1 and the second battery module 2 in fig. 1, when the first battery module 1 and the second battery module 2 are connected to form the battery pack, the collection interfaces 31 of the two adjacent battery modules are on the same side, and the positive electrode and the negative electrode are connected to the same side, and the two adjacent battery modules are electrically connected through the conductive component.
In one possible implementation, the conductive component is a flexible connection, such as a copper bar flexible connection (made by cold pressing using bare copper wires or tinned copper braided wires (stranded wires)), but is not limited thereto.
Optionally, in the first battery module 1, the information acquisition device includes a first acquisition interface 311 and a second acquisition interface 312; in the second battery module 2, the information acquisition device includes a third acquisition interface 313 and a fourth acquisition interface 314; the first collection interface 311 and the third collection interface 313 are located on the same side of the battery pack, and the second collection interface 312 and the fourth collection interface 314 are located on the same side of the battery pack.
With reference to fig. 1, in the first battery module 1, the first collecting interface 311 and the second collecting interface 312 are symmetrically disposed at two ends of the first battery module 1 along the arrangement direction of the batteries; the third collection interface 313 and the fourth collection interface 314 are symmetrically disposed at two ends of the second battery module 2 along the arrangement direction of the batteries.
Optionally, the battery pack further includes an information transmission component 4 and a battery management system, one end of the information transmission component 4 is in signal connection with the acquisition interface 31 of each battery module, and the other end of the information transmission component 4 is in signal connection with the battery management system.
In a possible implementation, the information transmission assembly 4 comprises a second acquisition beam 41, a third acquisition beam 42 and a fourth acquisition beam 43; one end of the second collecting wire harness 41 is in signal connection with the first collecting interface 311, and the other end is in signal connection with the fourth collecting wire harness 43; one end of the third collecting wire harness 42 is in signal connection with the third collecting interface 313, and the other end is in signal connection with one end of the fourth collecting wire harness 43, which is connected with the second collecting wire harness 41; or, one end of the second collecting harness 41 is in signal connection with the second collecting interface 312, and the other end is in signal connection with the fourth collecting harness 43; one end of the third collecting harness 42 is in signal connection with the fourth collecting interface 314, and the other end is in signal connection with one end of the fourth collecting harness 43, which is connected with the second collecting harness 41. The second collection beam 41, the third collection beam 42, and the fourth collection beam 43 are all low voltage collection beams.
In particular, with continued reference to fig. 1, two connection schemes are employed as needed:
in the first scheme, a first collection interface 311 and a third collection interface 313 which are connected to the same side of two battery modules (as shown in a dotted line connection manner in fig. 1) are provided; one end of the second collection wire harness 41 is in signal connection with the first collection interface 311, one end of the third collection wire harness 42 is in signal connection with the third collection interface 313, and the other end of the second collection wire harness 41 and the other end of the third collection wire harness 42 are collected and in signal connection with the fourth collection wire harness 43.
A second acquisition interface 312 and a fourth acquisition interface 314 connected to the other side of the two battery modules (as shown in fig. 1 by a solid line connection manner); one end of the second collection wire harness 41 is in signal connection with the second collection interface 312, one end of the third collection wire harness 42 is in signal connection with the fourth collection interface 314, and the other end of the second collection wire harness 41 and the other end of the third collection wire harness 42 are collected and in signal connection with the fourth collection wire harness 43.
In this embodiment, the battery management system is in signal connection with one end of the fourth collection harness 43 away from the second collection harness 41. One end of the fourth collecting harness 43 is in signal connection with the junction of the second collecting harness 41 and the third collecting harness 42, and the other end is in signal connection with the battery management system inside the battery pack, and is used for transmitting the battery state information (temperature and/or voltage information, etc.) of the battery module to the battery management system of the battery pack.
In another possible implementation manner, the information transmission assembly includes a fifth acquisition harness and a sixth acquisition harness; one end of a fifth acquisition wire harness is in signal connection with the first acquisition interface, and the other end of the fifth acquisition wire harness is in signal connection with the third acquisition interface; the sixth acquisition wiring harness is in signal connection with the fifth acquisition wiring harness; or one end of a fifth acquisition wire harness is in signal connection with the second acquisition interface, and the other end of the fifth acquisition wire harness is in signal connection with the fourth acquisition interface; and the sixth acquisition wiring harness is in signal connection with the fifth acquisition wiring harness. The fifth collecting wire harness and the sixth collecting wire harness are both low-voltage collecting wire harnesses.
In this mode, the battery management system is in signal connection with one end of the sixth collection harness, which is far away from the fifth collection harness. One end of the sixth collection harness is in signal connection with the fifth collection harness, and the other end of the sixth collection harness is in signal connection with a battery management system in the battery pack, and is used for transmitting battery state information (temperature and/or voltage information and the like) of the battery module to the battery management system of the battery pack.
In another possible implementation manner, the information transmission assembly includes a seventh acquisition harness and an eighth acquisition harness; the seventh acquisition wiring harness is in signal connection with the first acquisition interface, and the eighth acquisition wiring harness is in signal connection with the third acquisition interface; or the seventh acquisition wiring harness is in signal connection with the second acquisition interface, and the eighth acquisition wiring harness is in signal connection with the fourth acquisition interface.
In the method, at least two interfaces matched with the information transmission assembly are arranged on the battery management system, specifically, one end of a seventh acquisition wiring harness is in signal connection with the first acquisition interface, the other end of the seventh acquisition wiring harness is in signal connection with the battery management system, one end of an eighth acquisition wiring harness is in signal connection with the third acquisition interface, and the other end of the eighth acquisition wiring harness is in signal connection with the battery management system; or one end of the seventh acquisition wiring harness is in signal connection with the second acquisition interface, the other end of the seventh acquisition wiring harness is in signal connection with the battery management system, one end of the eighth acquisition wiring harness is in signal connection with the fourth acquisition interface, and the other end of the eighth acquisition wiring harness is in signal connection with the battery management system. The seventh collection harness and the eighth collection harness are used for transmitting battery state information (temperature and/or voltage information and the like) of the battery module to a battery management system of the battery pack.
It should be noted that, the first battery module 1 and the second battery module 2 in the battery pack are connected in series for flexible connection and need to be connected to the positive electrode of the second battery module 2 from the negative electrode of the first battery module 1, and a bidirectional signal acquisition design is adopted, so that the direction of the acquisition interface 31 is consistent while the consistency of the first battery module 1 and the second battery module 2 is ensured, and a large space does not need to be reserved in the battery pack for low-voltage acquisition harnesses. The user can select two schemes of the low-voltage acquisition wiring harness according to the design space of the battery pack.
Every battery module model is the same in the battery package that this application embodiment provided, and every battery module all is equipped with two and gathers interface 31, has avoided the problem of the material that causes because of adopting two kinds of modules among the prior art and the increase of production control degree of difficulty.
Therefore, the battery pack can achieve the purpose that the soft connection and the low-voltage signal acquisition wiring harness occupy less space in the battery pack on the basis of not increasing the models of the electronic modules, and not only can the purpose of reducing cost be achieved, but also the space utilization rate of the battery pack can be improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A battery module, comprising: the system comprises at least two batteries and an information acquisition assembly for acquiring the state information of at least one battery;
the information acquisition assembly is symmetrically provided with two acquisition interfaces along two ends of the arrangement direction of the batteries.
2. The battery module according to claim 1, wherein the information acquisition assembly comprises an acquisition end and a flexible circuit board in signal connection with the acquisition end;
the acquisition end is in signal connection with the battery; and two ends of the flexible circuit board are respectively connected with the two acquisition interface signals.
3. The battery module of claim 2, wherein the collection end comprises at least one of a collection sheet metal or a first collection harness.
4. The battery module according to claim 2, further comprising a harness plate assembly;
the wire harness board assembly comprises a wire harness board and a conductive bar arranged on the wire harness board, at least two batteries are electrically connected through the conductive bar to form a positive electrode and a negative electrode of the battery module, and the acquisition end is in signal connection with the conductive bar.
5. The battery module according to claim 4, wherein the information acquisition assembly is mounted on the wiring harness board.
6. A battery pack, comprising: the battery module according to any one of claims 1 to 5.
7. The battery pack of claim 6, wherein the battery pack comprises at least two battery modules, the at least two battery modules comprise a first battery module and a second battery module, and the positive electrode of the first battery module and the negative electrode of the second battery module are located on the same side of the battery pack and are electrically connected through a conductive component.
8. The battery pack of claim 7, wherein in the first battery module, the information acquisition device comprises a first acquisition interface and a second acquisition interface; in the second battery module, the information acquisition device comprises a third acquisition interface and a fourth acquisition interface; the first collection interface and the third collection interface are located on the same side of the battery pack, and the second collection interface and the fourth collection interface are located on the same side of the battery pack.
9. The battery pack of claim 8, further comprising an information transmission assembly comprising a second collection harness, a third collection harness, and a fourth collection harness;
one end of the second acquisition wiring harness is in signal connection with the first acquisition interface, and the other end of the second acquisition wiring harness is in signal connection with the fourth acquisition wiring harness; one end of the third acquisition wiring harness is in signal connection with the third acquisition interface, and the other end of the third acquisition wiring harness is in signal connection with one end of the fourth acquisition wiring harness, which is connected with the second acquisition wiring harness; alternatively, the first and second electrodes may be,
one end of the second acquisition wiring harness is in signal connection with the second acquisition interface, and the other end of the second acquisition wiring harness is in signal connection with the fourth acquisition wiring harness; one end of the third acquisition wiring harness is in signal connection with the fourth acquisition interface, and the other end of the third acquisition wiring harness is in signal connection with one end of the fourth acquisition wiring harness, which is connected with the second acquisition wiring harness.
10. The battery pack of claim 9, further comprising a battery management system in signal communication with an end of the fourth collection harness that faces away from the second collection harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021408436.1U CN212517294U (en) | 2020-07-16 | 2020-07-16 | Battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021408436.1U CN212517294U (en) | 2020-07-16 | 2020-07-16 | Battery module and battery pack |
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| CN212517294U true CN212517294U (en) | 2021-02-09 |
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| CN202021408436.1U Active CN212517294U (en) | 2020-07-16 | 2020-07-16 | Battery module and battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114079107A (en) * | 2021-11-18 | 2022-02-22 | 广州小鹏汽车科技有限公司 | Battery module and battery pack |
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2020
- 2020-07-16 CN CN202021408436.1U patent/CN212517294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114079107A (en) * | 2021-11-18 | 2022-02-22 | 广州小鹏汽车科技有限公司 | Battery module and battery pack |
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| GR01 | Patent grant | ||
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Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Kaibo Energy Technology Co.,Ltd. Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: Kaibo Energy Technology Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211227 Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |