CN218182435U - Battery module, battery package and vehicle - Google Patents
Battery module, battery package and vehicle Download PDFInfo
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- CN218182435U CN218182435U CN202121973985.8U CN202121973985U CN218182435U CN 218182435 U CN218182435 U CN 218182435U CN 202121973985 U CN202121973985 U CN 202121973985U CN 218182435 U CN218182435 U CN 218182435U
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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 present disclosure relates to a battery module, a battery pack, and a vehicle. The battery module includes a plurality of electric cores that set up side by side along the first direction, a plurality of explosion-proof valves, data transmission spare and two rows of busbars that extend along the first direction, all be equipped with the explosion-proof valve on every electric core, two rows of busbars are located the both sides of a plurality of explosion-proof valves respectively and correspond the setting on a plurality of electric cores, data transmission spare includes two first data transmission portions and two second data transmission portions that extend along the first direction and correspond, a plurality of explosion-proof valves are located between two first data transmission portions, the one end one-to-one of two second data transmission portions is connected with two first data transmission portions, and the contained angle that forms between first data transmission portion and the second data transmission portion is the obtuse angle, the other end of two second data transmission portions draws close each other, every row of busbars includes at least one busbar, first data transmission portion connects in the busbar. The data transmission piece of battery module can avoid being damaged by the produced high temperature material of thermal runaway.
Description
Technical Field
The present disclosure relates to the field of battery technology, and in particular, to a battery module, a battery pack, and a vehicle.
Background
Under the large environment of the state for vigorously developing the electric automobile, spontaneous combustion accidents of the electric automobile frequently occur, the safety of most passengers and drivers is seriously affected, and the safety problem of the electric automobile becomes more prominent.
At present, the battery module mostly adopts FPC (Flexible Printed Circuit) and PCB (Printed Circuit Board) to collect the voltage of the battery core. Among the correlation technique, because the voltage acquisition circuit arrangement of gathering voltage information is in the top of explosion-proof valve, and the battery package when using, can produce the thermal runaway usually for the explosion-proof valve is opened, and the high temperature material via the inside eruption of electric core contacts the damage that the voltage acquisition circuit can cause the voltage acquisition circuit, and then influences the voltage acquisition of battery module, finally causes and can not provide early warning signal for passenger or driver in earlier time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery module, battery package and vehicle, this battery module has solved because of the high temperature material damage voltage acquisition circuit that the thermal runaway produced, leads to the unable problem of normally gathering of voltage, can avoid data transmission spare to be damaged by the produced high temperature material of thermal runaway to can ensure to provide early warning information for passenger or driver through voltage variation in earlier time.
According to a first aspect of the present disclosure, a battery module is provided, including a plurality of electric cores, a plurality of explosion-proof valves, data transmission spare and two rows that set up side by side along the first direction along the busbar that the first direction extends, every all be equipped with on the electric core explosion-proof valve, two the busbar is located respectively the both sides of a plurality of explosion-proof valves and correspond the setting on a plurality of on the electric core, data transmission spare includes two edges first direction extension and corresponding first data transmission portion and two second data transmission portions, it is a plurality of explosion-proof valve is located two between the first data transmission portion, two the one end one-to-one ground of second data transmission portion with two first data transmission portion is connected, just first data transmission portion with the contained angle that forms between the second data transmission portion is the obtuse angle, two the other end of second data transmission portion draws close together each other, every row the busbar includes at least one busbar, first data transmission portion connect in the busbar.
Optionally, the data transmission member is made of an integrated flexible circuit board, the width of the flexible circuit board is 2a, and the widths of the first data transmission part and the second data transmission part are both a.
Optionally, an included angle b between the two second data transmission portions is greater than or equal to 90 °.
Optionally, the data transmission piece further includes two third data transmission portions arranged side by side, and the two third data transmission portions are connected to one end, far away from the first data transmission portion, of the two second data transmission portions in a one-to-one correspondence manner.
Optionally, the battery module further comprises a fixing support, the fixing support is arranged between the battery core and the bus bar, the fixing support is provided with an installation surface, the data transmission piece is of a sheet structure, and the two first data transmission parts are attached to the installation surface.
Optionally, the fixed support is provided with avoidance holes corresponding to the explosion-proof valves one to one.
Optionally, the battery module further comprises a temperature sensor, the temperature sensor is arranged on the data transmission piece and/or the fixing support, and the temperature sensor is connected with the first data transmission part.
Optionally, the data transmission piece further includes a connection portion, one end of the connection portion is connected to the first data transmission portion, the other end of the connection portion extends to the outside of the edge of the first data transmission portion and is connected to the bus bar, and the connection portion is a nickel sheet.
According to a second aspect of the present disclosure, a battery pack is provided, which includes the battery module.
According to a third aspect of the present disclosure, there is provided a vehicle including the battery pack described above.
Through the technical scheme, the explosion-proof valve is positioned between the two first data transmission parts, namely the first data transmission parts are not superposed above the explosion-proof valve, so that the first data transmission parts are separated from the explosion-proof valve, when thermal runaway occurs, high-temperature substances ejected out of the explosion-proof valve cannot be directly ejected onto the first data transmission parts, the first data transmission parts are not easily damaged by the high-temperature substances ejected out of the explosion-proof valve, and therefore voltage information of the battery cell can be ensured to be timely acquired and transmitted to the battery management system, and an early warning signal is sent to a passenger or a driver, so that the life safety of the passenger or the driver is ensured; in addition, because two second data transmission portions are the contained angle setting and its one end of keeping away from first data transmission portion is drawn close each other for data transmission spare can be made through mode of cutting, buckling by single part, also, data transmission spare can only cut once, need not to carry out unnecessary excision to data transmission spare, avoid extravagant material, can not destroy the signal line in the data transmission spare, make data transmission spare's design simpler, thereby can practice thrift data transmission spare's purchasing cost, simplify the manufacturing procedure.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:
fig. 1 is a schematic view of a partial structure of a battery module according to an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic view of another view of FIG. 1;
fig. 3 is an enlarged schematic view of a point a in fig. 2.
Description of the reference numerals
10. Battery module 100 data transmission piece
101. First data transfer section 102 second data transfer section
103. Third data transmission part 104 connecting part
105. Temperature sensor 110 connector
120. Hole is dodged to fixed bolster 121
130. Explosion-proof valve of busbar 140
150. Printed circuit board
a width of the first data transmission section
b angle between two second data transmission parts
c included angle between the first data transmission part and the second data transmission part
Detailed Description
The following detailed description of the embodiments of the disclosure refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, the term "up and down" refers to the orientation or position relationship of the product in use, and can be understood as up and down along the gravity direction, which also corresponds to the "up and down" in the drawing. In addition, it should be noted that terms such as "first", "second", and the like are used for distinguishing one element from another, and have no order or importance.
The inventor finds in research that at present, the battery module mostly adopts an FPC (Flexible Printed Circuit) and a PCB (Printed Circuit Board) to collect the voltage of the battery cell, but because the FPC is completely or at least partially arranged on the explosion-proof valve, the explosion-proof valve is shielded, when the battery pack generates thermal runaway, the contact between a high-temperature substance sprayed by the explosion-proof valve and the FPC instantaneously destroys the FPC, thereby influencing the collection of voltage information, and being incapable of sending early warning signals to passengers or drivers in time.
According to a first aspect of the present disclosure, a battery module 10 is provided, as shown in fig. 1, fig. 2 and fig. 3, the battery module 10 includes a plurality of battery cells arranged side by side in a first direction, a plurality of explosion-proof valves 140, a data transmission member 100, and two rows of bus bars 130 extending in the first direction, wherein the first direction may be a length direction of the battery module 10, and correspondingly, the second direction is a width direction of the battery module 10.
The explosion-proof valves 140 are arranged on each Battery cell, specifically, one explosion-proof valve 140 is arranged on each Battery cell, two rows of busbars 130 are respectively located on two sides of the explosion-proof valves 140 and are correspondingly arranged on the Battery cells, it can be understood that the two rows of busbars 130 are respectively located on two sides of the explosion-proof valves 140, therefore, the two rows of busbars 130 and the explosion-proof valves 140 are located on the same surface of the Battery module 10, the function of the busbar 130 is that the busbar 130 can be electrically connected with the poles of two adjacent Battery cells, so as to achieve series and parallel connection of the Battery cells, the data transmission member 100 includes two first data transmission parts 101 and two second data transmission parts 102 which extend in a first direction and correspond to each other, the explosion-proof valves 140 are located between the two first data transmission parts 101, one end of the two second data transmission parts 102 is connected with the two first data transmission parts 101 in a one-to-one correspondence manner, and the first data transmission parts 101 and the second data transmission parts 102 form an obtuse angle, the other ends of the two second data transmission parts 102 are connected with each other, each row of busbars 130 is connected with the Battery module 130, and the Battery module management system 110, and the Battery management system 110 is connected with the Battery module 10.
It should be noted that, in this embodiment, two poles of each battery cell are located on the same side of the battery module 10, and the explosion-proof valve 140 is disposed between the two poles.
An included angle between the first data transmission portion 101 and the second data transmission portion 102 is an obtuse angle, as shown in fig. 3, that is, an included angle c between the first data transmission portion 101 and the second data transmission portion 102 is greater than 90 °, and since the first data transmission portion 101 and the second data transmission portion 102 are formed by bending a strip-shaped body, when the included angle c between the first data transmission portion 101 and the second data transmission portion 102 is greater than 90 °, the bending amplitudes of the first data transmission portion 101 and the second data transmission portion 102 can be relatively small, and the second data transmission portion 102 is more likely to have an avoidance space to avoid the explosion-proof valve 140 closest to the second data transmission portion 102.
Through the technical scheme, the explosion-proof valve 140 is located between the two first data transmission parts 101, that is, the first data transmission parts 101 are not overlapped above the explosion-proof valve 140 (that is, the orthographic projection of the first data transmission part 101 on the top surface or the bottom surface of the battery module is not overlapped with the orthographic projection of the explosion-proof valve 140 on the top surface or the bottom surface of the battery module), so that the first data transmission parts 101 are separated from the explosion-proof valve 140, when thermal runaway occurs, high-temperature substances (such as electrolyte) ejected through the explosion-proof valve 140 cannot be directly ejected onto the first data transmission part 101, and the first data transmission part 101 is not easily damaged by the high-temperature substances ejected through the explosion-proof valve 140, so that voltage information of a battery cell can be timely acquired and transmitted to a battery management system, and an early warning signal is sent to a passenger or a driver, so as to guarantee life safety of the passenger or the driver; in addition, because two second data transmission portions 102 are arranged at an included angle and one ends of the two second data transmission portions which are far away from the first data transmission portion 101 are close to each other, the data transmission piece 100 can be manufactured by a single part in a cutting and bending mode, namely, the data transmission piece 100 can be manufactured by a single part and can be cut only once, redundant cutting of the data transmission piece 100 is not needed, waste of materials is avoided, signal lines in the data transmission piece 100 cannot be damaged, the design of the data transmission piece 100 is simpler, the purchase cost of the data transmission piece 100 can be saved, and the manufacturing process is simplified.
When in use, one section of a complete data transmission member 100 may be first divided into two strips, and then each strip is bent twice, so that one strip at least forms the first data transmission portion 101 and the second data transmission portion 102. Defining a width of the complete data transmission member 100 as 2a, the width of the divided first data transmission part 101 and second data transmission part 102 as a, obviously, the distance between the explosion-proof valve 140 and the bus bar 130 is greater than a, so as to reserve enough space between the explosion-proof valve 140 and the bus bar 130 to install the first data transmission part 101, where the width direction is along the second direction parallel to that shown in fig. 1. Alternatively, the data transmission member 100 may be formed of an integrated Flexible Circuit board (FPC). In this embodiment, as shown in fig. 3, b represents an included angle between two second data transmission portions 102, c represents an included angle between the first data transmission portion 101 and the second data transmission portion 102, and an included angle b between two second data transmission portions 102 is greater than or equal to 90 °, such a design can increase an area of the included angle b between two second data transmission portions 102, so that two second data transmission portions 102 can be isolated from the explosion-proof valve 140 close to the second data transmission portions 102, and the second data transmission portions 102 can avoid shielding the explosion-proof valve 140 close to the second data transmission portions 102, and when a thermal runaway occurs in a cell, damage to the two second data transmission portions 102 caused by a high-temperature substance ejected from the explosion-proof valve 140 can be avoided, and it can be understood that if the included angle b between the two second data transmission portions 102 is less than 90 °, the explosion-proof valve 140 close to the included angle b between the two second data transmission portions 102 is easily shielded by the second data transmission portions 102.
In this embodiment, as shown in fig. 2 and fig. 3, the battery module 10 further includes a fixing bracket 120, the fixing bracket 120 is disposed between the battery cell and the bus bar 130, i.e., the fixing bracket 120 is provided on the battery cell, and the bus bar 130 is provided on the fixing bracket 120, the fixing bracket 120 may be used to fix the bus bar 130, for example, the bus bar 130 may be mounted on the fixing bracket 120 by means of a snap fit or the like, thereby ensuring that the bus bar 130 can be fixed more firmly, the fixing bracket 120 has a mounting surface, the data transmission member 100 has a plate-like structure, the sheet structure herein means that the thickness of the data transmission member 100 is thin, so that the data transmission member 100 is in a sheet shape, for example, when the data transmission member 100 is an FPC, the thickness is thin, usually, the thickness of the FPC is between 0.1mm and 0.25mm, the two first data transmission portions 101 are attached to the mounting surface, since the first data transfer portion 101 and the second data transfer portion 102 are formed by bending one strip-shaped body, and the included angle between the first data transmission part 101 and the second data transmission part 102 is an obtuse angle, therefore, wrinkles may be generated at the bent portion between the first data transmission part 101 and the second data transmission part 102, so that a portion of the second data transmission part 102 does not abut against the mounting surface at the bend, but the remaining most part of the second data transmission part 102 is attached to the mounting surface, so that the overall height of the battery module 10 can be reduced, thereby making reasonable use of space, and, at the same time, the first data transmission part 101 is in surface-to-surface contact with the mounting surface, and the second data transmission part 102 is almost in surface-to-surface contact with the mounting surface, so that the contact areas of the first data transmission part 101 and the second data transmission part 102 with the mounting surface are increased, and the reliability of connection is improved.
Specifically, the first data transmission unit 101, the second data transmission unit 102 and the fixing bracket 120 may be connected by any suitable connection method.
In some embodiments, the first data transmission part 101, the second data transmission part 102 and the mounting surface of the fixing bracket 120 may be connected by adhesion, for example, by a double-sided tape or liquid glue.
In some embodiments, the first and second data transmission parts 101 and 102 may be fixed by a snap provided on the mounting surface.
As shown in fig. 3, in this embodiment, the data transmission member 100 further includes two third data transmission portions 103 arranged side by side, the two third data transmission portions 103 are connected to one end of the two second data transmission portions 102 away from the first data transmission portion 101 in a one-to-one correspondence manner, the two third data transmission portions 103 are arranged side by side, which means that the two third data transmission portions 103 are adjacent to each other and arranged together extending along the same direction, in general, the battery module 10 further includes a printed circuit board 150, the printed circuit board 150 can be arranged on the fixing bracket 120, and the two third data transmission portions 103 are arranged side by side, which can reasonably select the printed circuit board 150 with a proper size, and is further beneficial to improving the structural compactness of the battery module 10.
Wherein the connector 110 is mounted on the printed circuit board 150.
Since there is not enough space on the upper surface of the battery module 10 to mount the printed circuit board 150, the printed circuit board 150 may be disposed on the side of the fixing bracket 120, so as to prevent the printed circuit board 150 and the connector 110 from being damaged by high-temperature substances generated by thermal runaway of the battery cell, and correspondingly, the third data transmission part 103 is disposed in an arc shape so as to wind from the upper surface of the fixing bracket 120 to the side of the fixing bracket 120, so as to connect the printed circuit board 150.
In this embodiment, as shown in fig. 3, the fixing bracket 120 is provided with avoiding holes 121 corresponding to the anti-explosion valves 140 one to one, in other words, the number of the avoiding holes 121 is the same as the number of the anti-explosion valves 140, the avoiding holes 121 may be set as through holes, the through holes may penetrate through the upper and lower surfaces of the fixing bracket 120 above the anti-explosion valves 140, and the avoiding holes 121 enable the anti-explosion valves 140 to be exposed outside the fixing bracket 120, so that when a thermal runaway occurs in an electric core, a high-temperature substance may be ejected outwards through the avoiding holes 121, wherein the avoiding holes 121 may be set in a rectangular shape, an oval shape, or a waist shape, etc.
As shown in fig. 3, the battery module 10 further includes a temperature sensor 105, the temperature sensor 105 is disposed on the data transmission member 100 and/or the fixing bracket 120, the temperature sensor 105 is connected to the first data transmission member 101, specifically, the temperature sensor 105 may be disposed on the first data transmission member 101, or on the fixing bracket 120, or on both the data transmission member 100 and the fixing bracket 120, and the temperature sensor 105 is sequentially connected to the printed circuit board 150, the connector 110, and the battery management system through the first data transmission member 101, the second data transmission member 102, and the third data transmission member 103, so that temperature information can be provided to a passenger or a driver, and thus warning information can be timely provided to the passenger or the driver according to a temperature change. The number of the temperature sensors 105 can be set to be a plurality, and the temperature sensors are arranged at intervals on the data transmission member 100 and/or the fixing bracket 120, so that the temperature of a plurality of positions of the battery module 10 can be acquired, and the temperature acquisition is more accurate.
In this embodiment, as shown in fig. 3, the data transmission member 100 further includes a connection portion 104, one end of the connection portion 104 is connected to the first data transmission portion 101, and the other end of the connection portion 104 extends to the outside of the edge of the first data transmission portion 101 and is connected to the bus 130, and the connection portion 104 is substantially perpendicular to the first data transmission portion 101.
The connection portion 104 is a nickel plate, the nickel plate and the flexible circuit board can be connected through an SMT welding process, and the nickel plate and the bus bar 130 can be connected through laser welding.
According to a second aspect of the present disclosure, a battery pack is provided, which includes at least one battery module 10 described above.
According to a third aspect of the present disclosure, there is provided a vehicle including the battery pack described above.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure. It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. The battery module is characterized by comprising a plurality of battery cores, a plurality of explosion-proof valves (140), a data transmission piece (100) and two rows of busbars (130) which are arranged side by side along a first direction, wherein the busbars (130) extend along the first direction, the explosion-proof valves (140) are arranged on the battery cores, the two rows of busbars (130) are respectively located on two sides of the explosion-proof valves (140) and are correspondingly arranged on the battery cores, the data transmission piece (100) comprises two first data transmission parts (101) and two second data transmission parts (102) which extend along the first direction and are corresponding to each other, the explosion-proof valves (140) are located between the two first data transmission parts (101), one ends of the two second data transmission parts (102) are connected with the two first data transmission parts (101) in a one-to-one correspondence manner, included angles formed between the first data transmission parts (101) and the second data transmission parts (102) are included angles, the other ends of the two second data transmission parts (102) are close to each other, and the busbars (130) include at least one busbar (130).
2. The battery module according to claim 1, wherein the data transmission member (100) is made of an integrated flexible circuit board having a width of 2a, and the first data transmission part (101) and the second data transmission part (102) each have a width of a.
3. The battery module according to claim 2, wherein the angle b between the two second data transmission parts (102) is greater than or equal to 90 °.
4. The battery module according to claim 1, wherein the data transmission member (100) further comprises two third data transmission parts (103) arranged side by side, and the two third data transmission parts (103) are connected to one ends of the two second data transmission parts (102) far away from the first data transmission part (101) in a one-to-one correspondence manner.
5. The battery module according to claim 1, further comprising a fixing bracket (120), wherein the fixing bracket (120) is disposed between the battery cell and the bus bar (130), the fixing bracket (120) has a mounting surface, the data transmission member (100) has a sheet-like structure, and the two first data transmission portions (101) are attached to the mounting surface.
6. The battery module according to claim 5, wherein the fixing bracket (120) is provided with avoidance holes (121) corresponding to the explosion-proof valves (140) in a one-to-one manner.
7. The battery module according to claim 5, further comprising a temperature sensor (105), wherein the temperature sensor (105) is provided on the data transmission member (100) and/or the fixing bracket (120), and wherein the temperature sensor (105) is connected to the first data transmission part (101).
8. The battery module according to claim 1, wherein the data transmission member (100) further comprises a connection part (104), one end of the connection part (104) is connected to the first data transmission part (101), the other end of the connection part extends out of the edge of the first data transmission part (101) and is connected with the bus bar (130), and the connection part (104) is a nickel plate.
9. A battery pack comprising the battery module according to any one of claims 1 to 8.
10. A vehicle characterized by comprising the battery pack recited in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121973985.8U CN218182435U (en) | 2021-08-20 | 2021-08-20 | Battery module, battery package and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121973985.8U CN218182435U (en) | 2021-08-20 | 2021-08-20 | Battery module, battery package and vehicle |
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| Publication Number | Publication Date |
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| CN218182435U true CN218182435U (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121973985.8U Active CN218182435U (en) | 2021-08-20 | 2021-08-20 | Battery module, battery package and vehicle |
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| CN (1) | CN218182435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4404330A1 (en) * | 2023-01-16 | 2024-07-24 | Samsung SDI Co., Ltd. | Rechargeable battery module |
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2021
- 2021-08-20 CN CN202121973985.8U patent/CN218182435U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4404330A1 (en) * | 2023-01-16 | 2024-07-24 | Samsung SDI Co., Ltd. | Rechargeable battery module |
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