CN212874705U - Battery module information acquisition device and battery module - Google Patents
Battery module information acquisition device and battery module Download PDFInfo
- Publication number
- CN212874705U CN212874705U CN202021707518.6U CN202021707518U CN212874705U CN 212874705 U CN212874705 U CN 212874705U CN 202021707518 U CN202021707518 U CN 202021707518U CN 212874705 U CN212874705 U CN 212874705U
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- battery module
- insulating support
- information acquisition
- circuit board
- flexible circuit
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- 238000003466 welding Methods 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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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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- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to a power battery technical field discloses a battery module information acquisition device and battery module. The battery module information acquisition device comprises an insulating support, a confluence sheet, a flexible circuit board and acquisition sheets, wherein the insulating support is provided with avoidance holes, and the confluence sheet is arranged on the upper side of the insulating support and is connected with opposite terminals of two adjacent battery cells; the flexible circuit board is fixed on the upper surface of the insulating support, a connecting part is arranged at the side edge of the flexible circuit board, notches are respectively arranged at the two sides of the connecting part, and the projection of the connecting part on the insulating support falls within the avoidance hole; the two ends of the collecting piece are respectively connected with the connecting part and the confluence piece in a welding mode. The utility model discloses a reliable height, long service life are connected to each part of battery module information acquisition device, and low in manufacturing cost. The utility model discloses a battery module is stable, long service life through setting up foretell battery module information acquisition device information acquisition.
Description
Technical Field
The utility model relates to a power battery technical field especially relates to a battery module information acquisition device and battery module.
Background
With the continuous development of new energy vehicles, the battery module in the power battery pack is also continuously developed. The information acquisition mode of the battery module is gradually changed from traditional wire harness transmission to flexible circuit board transmission, so that the trend of the wire harness inside the battery module is simplified.
When the information acquisition device of the battery module adopts the flexible circuit board for transmission, the flexible circuit board is usually fixed on the upper surface of the insulating support, and two ends of the acquisition piece are respectively welded on the flexible circuit board and the acquisition points of the battery core, so that the battery core is electrically connected with the flexible circuit board. However, take place between insulating support and the electric core and rock relatively, or have the difference in height between a plurality of electric cores for insulating support between a plurality of electric cores, or electric core work when taking place the inflation for a period of time, all can make the welding position of gathering piece both ends receive to pull under these circumstances, and welding position receives to pull for a long time and can lead to opening a way or contact failure between electric core and the flexible circuit board, influences battery module information acquisition's accuracy and life.
Therefore, it is desirable to provide a battery module information collecting device and a battery module to solve the above problems.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a battery module information acquisition device, each part is connected reliably height, long service life, and low in manufacturing cost.
An object of the utility model is to provide a battery module, through setting up foretell battery module information acquisition device, information acquisition is stable, long service life.
To achieve the purpose, the utility model adopts the following technical proposal:
a battery module information acquisition device includes:
the insulation support is provided with an avoidance hole;
the bus bar is arranged on the upper side of the insulating support and is connected with opposite terminals of two adjacent battery cells;
the flexible circuit board is fixed on the upper surface of the insulating support, a connecting part is arranged at the side edge of the flexible circuit board, gaps are respectively arranged at two sides of the connecting part, and the projection of the connecting part on the insulating support falls within the avoidance hole;
and the two ends of the collecting piece are respectively connected with the connecting part and the bus piece in a welding manner.
Optionally, the length of the gap is not less than the length of the connecting portion along the extending direction perpendicular to the side edges.
Optionally, the gap is in a "U" shape.
Optionally, two rows of bus bar groups which are arranged oppositely are connected to the insulating support, and each bus bar group comprises a plurality of bus bars;
the flexible circuit board is arranged between the two rows of the bus bar groups, a plurality of connecting parts are arranged on the two sides of the flexible circuit board, which are opposite to the two rows of the bus bar groups, at intervals, and each connecting part is correspondingly connected with one bus bar.
Optionally, the insulating support includes a plurality of partition plates, and the partition plates are disposed between two adjacent bus bars.
Optionally, the insulating support further includes a plurality of elastic barbs, and the two opposite ends of each bus bar are respectively clamped with the elastic barbs.
Optionally, the insulating support further comprises an intermediate support portion, the intermediate support portion is arranged between the two rows of the bus bar groups, an avoiding groove is formed in the flexible circuit board, and the intermediate support portion penetrates through the avoiding groove.
Optionally, a hot riveting column is arranged on the upper surface of the insulating support, a mounting hole is formed in the flexible circuit board, and the hot riveting column penetrates through the mounting hole and is riveted with the flexible circuit board.
The battery module comprises the battery module information acquisition device.
Optionally, the battery module includes a plurality of electric cores that are parallel arrangement side by side, and is a plurality of the electric core sets up insulating support's downside, just two terminals of electric core are from supreme down worn to locate insulating support and with the busbar is connected.
The utility model discloses beneficial effect does:
the utility model discloses a battery module information acquisition device, the flexible circuit board is fixed on the insulating support, the both ends of collection piece respectively with converge piece and set up the connecting portion welding at the flexible circuit board side, and the both sides of connecting portion are provided with the opening, thereby make connecting portion have a free end, the free end can produce the deformation motion relative to the insulating support, and the dodge hole that sets up on the insulating support just provides the space of deformation motion for connecting portion, so when because of factors such as electric core self thermal expansion or a plurality of electric cores are highly inconsistent relative to the insulating support, make have relative displacement between converge piece and the insulating support and cause to draw and drag the collection piece, the connecting portion of flexible circuit board takes place elastic deformation to absorb the pulling force that the relative motion produced, thereby avoid the welding point department at collection piece both ends to concentrate the atress, guarantee the reliability of being connected between collection piece and converge piece and the flexible circuit board, the accuracy of information acquisition is further ensured, and the service life of the battery module acquisition device is prolonged; in addition, the notch and the avoiding hole are convenient to process and low in manufacturing cost.
The utility model discloses a battery module, through setting up foretell battery module information acquisition device, the information acquisition who can guarantee electric core is accurate, stable, and low in manufacturing cost.
Drawings
Fig. 1 is a schematic view of an exploded structure of a battery module information acquisition device according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is an enlarged view of fig. 1 at B.
In the figure:
1-an insulating support; 11-avoiding holes; 12-a spacer plate; 13-a resilient barb; 14-a middle support; 15-hot riveting columns;
2-confluence piece;
3-a flexible circuit board; 31-a connecting portion; 32-a gap; 33-avoidance groove; 34-mounting holes;
4-collecting the slices;
51-positive lead-out; 52-negative lead-out.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment provides a battery module information acquisition device and battery module, can be used to power battery technical field. The battery module comprises a plurality of battery cores and an information acquisition device, the battery cores are arranged in parallel side by side, and the information acquisition device is arranged on the upper sides of the battery cores. In this embodiment, the upper end surface of each of the battery cells is provided with a positive terminal and a negative terminal, and the positive terminals and the negative terminals of adjacent battery cells are alternately arranged, so that the terminals of all the battery cells are arranged into two rows of terminal rows, and each row of terminals is alternately arranged in a positive direction and a negative direction.
Specifically, as shown in fig. 1-3, the battery module information acquisition device includes insulating support 1, confluence piece 2, flexible circuit board 3 and collection piece 4, wherein, insulating support 1 is last to be provided with dodges hole 11, confluence piece 2 sets up the upside of insulating support 1 and is connected with the opposite sex terminal of two adjacent electric cores, flexible circuit board 3 is fixed at insulating support 1's upper surface, flexible circuit board 3's side department is provided with connecting portion 31, the both sides of connecting portion 31 are provided with opening 32 respectively, the projection of connecting portion 31 on insulating support 1 falls within dodging hole 11, the both ends of collection piece 4 respectively with connecting portion 31 and confluence piece 2 welded connection. The flexible circuit board 3 is connected with the battery cell sequentially through the acquisition sheet 4 and the bus bar sheet 2 so as to acquire information.
The two sides of the connecting part 31 are provided with the notches 32, so that the connecting part 31 is provided with a free end, the free end can generate deformation motion relative to the insulating support 1, and the avoidance hole 11 arranged on the insulating support 1 just provides a space for the deformation motion for the connecting part 31, so that when the acquisition sheet 4 is pulled due to the fact that the electric core is heated and expanded or the electric cores are not consistent with the height of the insulating support 1, and the like, and the relative displacement is generated between the acquisition sheet 2 and the insulating support 1, the connecting part 31 of the flexible circuit board 3 generates elastic deformation to absorb the pulling force generated by the relative motion, thereby preventing the welding points at the two ends of the acquisition sheet 4 from being intensively stressed, ensuring the reliability of the connection between the acquisition sheet 4 and the acquisition sheet 2 and the flexible circuit board 3, further ensuring the accuracy of information acquisition and prolonging the service life of the battery module acquisition device; in addition, the notch 32 and the avoidance hole 11 are convenient to process and low in manufacturing cost.
Preferably, the bottom of the insulating support 1 is provided with a through hole, so that the positive terminal and the negative terminal of the battery cell pass through the insulating support 1 from bottom to top, so as to realize the connection of the terminals and the bus bar 2 on the upper side of the insulating support 1. The acquisition sheet 4 can be a copper sheet or a nickel sheet, and can be selected according to the requirement.
As shown in fig. 1, two rows of bus bar groups which are arranged oppositely are connected to an insulating support 1, each bus bar group includes a plurality of bus bars 2, a flexible circuit board 3 is arranged between the two rows of bus bar groups, a plurality of connecting portions 31 are arranged on two sides of the flexible circuit board 3 which are opposite to the two rows of bus bar groups at intervals, and each connecting portion 31 is connected to one bus bar 2.
Specifically, in this embodiment, the number of the battery cells is 2N (where N is a positive integer), the bus bars 2 are arranged into two bus bar groups, where the first bus bar group includes N bus bars 2, and the N bus bars 2 connect two terminals in one row of the terminal group in a group; the second row of bus bar groups comprise N-1 bus bars 2, the N-1 bus bars 2 connect every two terminal groups of the other row of terminal group except the terminals at two ends, at the moment, 2N-1 bus bars 2 realize the serial connection of 2N electric cores, and a positive terminal and a negative terminal which are not connected with the bus bars 2 are respectively led out of the battery module through a positive pole leading-out piece 51 and a negative pole leading-out piece 52.
Correspondingly, the flexible circuit board 3 includes two opposite sides, wherein two ends of the first side are respectively provided with an end connection position, the middle part is provided with N-2 connection parts 31 at intervals, and the two end connection positions and the N-2 connection parts 31 on the side are respectively connected with the N bus bars 2 of the first row of bus bar group through the collecting sheet 4. End connection positions are respectively arranged at two ends of the second side edge, N-1 connecting parts 31 are arranged at intervals at the middle part, each connecting part 31 corresponds to one avoidance hole 11 on the insulating support 1, the two end connection positions on the side edge are respectively connected with the positive electrode leading-out part 51 and the negative electrode leading-out part 52 through the collecting sheets 4, and the N-1 connecting parts 31 are respectively connected with the N-1 bus plates 2 of the second bus plate group through the collecting sheets 4.
Preferably, as shown in fig. 2, the length of the gap 32 is not less than the length of the connecting portion 31 along the extending direction perpendicular to the side edge on which the connecting portion 31 is disposed, so as to ensure that the whole area of the connecting portion 31 can move relative to the insulating support 1, and further improve the firmness of the welding between the acquisition sheet 4 and the flexible circuit board 3. Specifically, in the present embodiment, the length of the slit 32 is D, the length of the connecting portion 31 is D, and D > D, along the extending direction perpendicular to the side where the connecting portion 31 is provided.
Further, as shown in fig. 2, the notch 32 is shaped like a "U", so that the connection portion 31 and the rest portion of the flexible circuit board 3 (i.e., the root of the connection portion 31) transition in an arc line, and the connection portion 31 is prevented from being torn from the root of the connection portion 31 when being deformed.
In order to realize the fixed connection between the flexible circuit board 3 and the insulating support 1, as shown in fig. 1, a hot riveting column 15 is arranged on the upper surface of the insulating support 1, a mounting hole 34 is arranged on the flexible circuit board 3, and the hot riveting column 15 penetrates through the mounting hole 34 and is riveted with the flexible circuit board 3. The flexible circuit board 3 is connected with the insulating support 1 through hot riveting, the problem of connection looseness is not prone to occurring even in long-time use, the hot riveting column 15 can be integrally formed with the whole insulating support 1, and position accuracy is high. Specifically, in this embodiment, the mounting hole 34 is a waist-shaped hole, so that a certain movement margin is provided when the flexible circuit board 3 and the insulating support 1 are mounted, and when there is a problem that the flexible circuit board 3 or the insulating support 1 has a certain error during processing, the assembly accuracy of the two can still be ensured.
Preferably, as shown in fig. 1 and 3, the insulating support 1 includes a plurality of partition plates 12, the partition plates 12 are disposed between two adjacent bus bars 2, and the partition plates 12 can not only position and limit the bus bars 2, but also space the two bus bars 2 apart from each other, thereby avoiding the short circuit problem between the bus bars 2. Specifically, in the present embodiment, the spacer plates 12 are also provided between the positive electrode lead-out member 51 and the adjacent bus bar piece 2 and between the negative electrode lead-out member 52 and the adjacent bus bar piece 2.
Further, as shown in fig. 3, the insulating support 1 further includes a plurality of elastic barbs 13, the two opposite ends of each bus bar 2 are respectively connected with the elastic barbs 13, and the two elastic barbs 13 can fix the bus bars 2 on the insulating support 1, so as to ensure that the positions of the bus bars 2 do not move when the terminals of the electric core and the bus bars 2 are connected. Specifically, in this embodiment, at least one end of the positive electrode lead-out member 51 and the negative electrode lead-out member 52 is also snap-fitted with the elastic barb 13.
Preferably, as shown in fig. 1, the insulating bracket 1 further includes an intermediate support portion 14, the intermediate support portion 14 is disposed between the two rows of bus bar groups, and after the upper side of the information acquisition device is mounted with the housing assembly, the intermediate support portion 14 can abut against the housing assembly to support the housing assembly. Correspondingly, the flexible circuit board 3 is provided with an avoiding groove 33, and the middle supporting part 14 is arranged in the avoiding groove 33 in a penetrating manner, so that the position interference between the flexible circuit board and the middle supporting part 14 is avoided.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and for those skilled in the art, there are variations on the specific embodiments and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a battery module information acquisition device which characterized in that includes:
the insulation support (1), the insulation support (1) is provided with a dodging hole (11);
the bus bar (2) is arranged on the upper side of the insulating support (1) and is connected with opposite terminals of two adjacent battery cells;
the flexible circuit board (3) is fixed on the upper surface of the insulating support (1), a connecting part (31) is arranged at the side edge of the flexible circuit board (3), notches (32) are respectively arranged at two sides of the connecting part (31), and the projection of the connecting part (31) on the insulating support (1) falls within the avoiding hole (11);
and the two ends of the acquisition sheet (4) are respectively connected with the connecting part (31) and the confluence sheet (2) in a welding manner.
2. The battery module information acquisition apparatus according to claim 1, wherein the length of the notch (32) is not less than the length of the connection portion (31) in the extending direction perpendicular to the side edges.
3. The battery module information acquisition device according to claim 1, wherein the notch (32) is U-shaped.
4. The battery module information acquisition device according to any one of claims 1 to 3, wherein two rows of bus bar groups are oppositely arranged and connected to the insulating support (1), and each bus bar group comprises a plurality of bus bars (2);
the flexible circuit board (3) is arranged between the two rows of the bus bar groups, a plurality of connecting parts (31) are arranged on the flexible circuit board (3) at intervals on two sides opposite to the two rows of the bus bar groups respectively, and each connecting part (31) is correspondingly connected with one bus bar (2).
5. The battery module information acquisition device according to claim 4, wherein the insulating support (1) comprises a plurality of partition plates (12), and the partition plates (12) are arranged between two adjacent confluence plates (2).
6. The battery module information acquisition device according to claim 4, wherein the insulating support (1) further comprises a plurality of elastic barbs (13), and the two opposite ends of each bus piece (2) are respectively clamped with the elastic barbs (13).
7. The battery module information acquisition device according to claim 4, wherein the insulating support (1) further comprises an intermediate support portion (14), the intermediate support portion (14) is disposed between the two rows of the bus bar groups, an avoiding groove (33) is disposed on the flexible circuit board (3), and the intermediate support portion (14) is disposed in the avoiding groove (33) in a penetrating manner.
8. The battery module information acquisition device according to any one of claims 1 to 3, wherein a hot riveting column (15) is arranged on the upper surface of the insulating support (1), a mounting hole (34) is arranged on the flexible circuit board (3), and the hot riveting column (15) is arranged in the mounting hole (34) in a penetrating manner and riveted with the flexible circuit board (3).
9. A battery module comprising the battery module information acquisition apparatus according to any one of claims 1 to 8.
10. The battery module according to claim 9, characterized in that the battery module comprises a plurality of battery cells arranged in parallel side by side, the plurality of battery cells are arranged on the lower side of the insulating support (1), and two terminals of the battery cells penetrate through the insulating support (1) from bottom to top and are connected with the bus bar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021707518.6U CN212874705U (en) | 2020-08-14 | 2020-08-14 | Battery module information acquisition device and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021707518.6U CN212874705U (en) | 2020-08-14 | 2020-08-14 | Battery module information acquisition device and battery module |
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| Publication Number | Publication Date |
|---|---|
| CN212874705U true CN212874705U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021707518.6U Active CN212874705U (en) | 2020-08-14 | 2020-08-14 | Battery module information acquisition device and battery module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921998A (en) * | 2021-10-15 | 2022-01-11 | 东莞市硅翔绝缘材料有限公司 | Integrated busbar with hot riveting structure and preparation process thereof |
| CN114709568A (en) * | 2022-04-29 | 2022-07-05 | 蜂巢能源科技股份有限公司 | Information acquisition assembly and battery module |
| CN115440502A (en) * | 2022-10-09 | 2022-12-06 | 烯晶碳能电子科技无锡有限公司 | Capacitor module structure |
| WO2023103408A1 (en) * | 2021-12-09 | 2023-06-15 | 湖北亿纬动力有限公司 | Information acquisition apparatus for battery module, and battery module |
-
2020
- 2020-08-14 CN CN202021707518.6U patent/CN212874705U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921998A (en) * | 2021-10-15 | 2022-01-11 | 东莞市硅翔绝缘材料有限公司 | Integrated busbar with hot riveting structure and preparation process thereof |
| CN113921998B (en) * | 2021-10-15 | 2024-02-06 | 东莞市硅翔绝缘材料有限公司 | Integrated busbar with hot riveting structure and preparation process thereof |
| WO2023103408A1 (en) * | 2021-12-09 | 2023-06-15 | 湖北亿纬动力有限公司 | Information acquisition apparatus for battery module, and battery module |
| CN114709568A (en) * | 2022-04-29 | 2022-07-05 | 蜂巢能源科技股份有限公司 | Information acquisition assembly and battery module |
| CN114709568B (en) * | 2022-04-29 | 2024-02-23 | 蜂巢能源科技股份有限公司 | Information acquisition assembly and battery module |
| CN115440502A (en) * | 2022-10-09 | 2022-12-06 | 烯晶碳能电子科技无锡有限公司 | Capacitor module structure |
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