CN218731832U

CN218731832U - FFC (flexible flat cable) integrated busbar and battery module

Info

Publication number: CN218731832U
Application number: CN202222888306.8U
Authority: CN
Inventors: 朋佳丽; 高灵雷; 朱子豪; 陈涛
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-24
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to an integrated female arranging of FFC and battery module belongs to new forms of energy power battery field. The utility model provides a female arranging of FFC integration, includes two at least FFC winding displacement, and every FFC winding displacement includes the mainboard, and the mainboard has two relative main side, is provided with at least one information acquisition subassembly on the mainboard, the mainboard range upon range of setting of FFC winding displacement, wherein the adjacent main side match connection of two adjacent mainboards. The utility model discloses an integrated female arranging of FFC will two at least mainboard range upon range of settings of FFC winding displacement to realize the integration of many FFC winding displacements, compare in the mode that traditional dispersion set up the FFC winding displacement, outside guaranteeing that sufficient collection point gathers required parameter information, the space of arranging of FFC winding displacement that has significantly reduced has improved space utilization.

Description

FFC (flexible flat cable) integrated busbar and battery module

Technical Field

The utility model relates to a new forms of energy power battery field, specifically speaking relates to an integrated female row of FFC and battery module.

Background

In the modern times, the worldwide energy problems and environmental problems caused by the automobile industry make the research and development of new energy electric automobiles an urgent task in the modern world. In China and even in the world, the new energy automobile industry develops rapidly, and more people begin to select electric automobiles as transportation tools. New energy automobile adopts the battery to be the driving source, specifically installs the battery module on the car, has the battery cell of a plurality of series connection in the battery module, in order to ensure battery performance, needs to gather the detected signal of the voltage of each battery cell and temperature through the circuit board to with signal transmission to signal acquisition device.

The circuit board in the prior art usually adopts FPC, but with the design of a battery without a module (CTP/CTC) in the research and development directions of various battery manufacturers in recent years, the size of the battery module is larger and longer, the length of the battery module is also longer and longer, the FPC is limited by production equipment and processes, the length of a single FPC is difficult to match with a large module, and two sections of FPCs are often needed to be spliced. This approach not only increases the cost of the components, but also increases the complexity of the signal circuit, for which reason in some battery modules the FPC has been replaced by a flexible line array FFC.

In practical application, a single FFC bus bar in the prior art can only detect a certain number of single batteries, when the number of the single batteries in the battery module is large, multiple groups of bus bars are needed, if the bus bars are arranged in a dispersed manner, the bus bars occupy a large space, and therefore, a patent with the publication number of CN114744378A found through retrieval discloses an integrated bus bar for a new energy automobile battery. And the utility model discloses just provide the integrated female row of another kind of structure, further reduce female occupation space who arranges.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

Among the prior art, the great problem of occupation space is arranged to many FFC winding displacement in the battery module, the utility model provides an integrated female arranging of FFC can be in the same place a plurality of FFC winding displacements are integrated better, when guaranteeing more efficient information acquisition performance, reduces the space occupation of winding displacement.

Additionally, the utility model provides a battery module can reduce the female space of arranging the installation of FFC and occupy, utilizes more energy storage spaces to improve the electric capacity and the electrical property of battery.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

An FFC integrated busbar comprises at least two FFC flat cables, each FFC flat cable comprises a main board, the main board is provided with two opposite main side faces, at least one information acquisition assembly is arranged on the main board, the main boards of the FFC flat cables are arranged in a stacked mode, and the adjacent main side faces of the two adjacent main boards are connected in a matched mode.

Preferably, be provided with a plurality of mounting grooves on the mainboard, it is a plurality of the mounting groove is followed the length direction of mainboard extends and arranges, and every mounting groove corresponds sets up information acquisition subassembly.

Preferably, the main board has a front end surface and a rear end surface, the height of the front mounting groove in the two adjacent mounting grooves is higher than that of the rear mounting groove, and the plurality of sequentially arranged mounting grooves are distributed in a stepped manner in the length direction of the main board.

Preferably, the information acquisition assembly comprises a supporting plate, the front end of the supporting plate extends along the mounting groove, and the rear end of the supporting plate bends towards the thickness direction of the main plate and supports and connects the information acquisition piece.

Preferably, the main board ends of the FFC flat cables are electrically connected with the collecting connector in common.

Preferably, the FFC integrated busbar includes two FFC bus lines, each main board includes corresponding upper and lower supporting surfaces, an information acquisition assembly on one FFC bus line extends upward out of the upper supporting surface of the main board, and an information acquisition assembly on the other FFC bus line extends downward out of the lower supporting surface of the main board.

Preferably, the mounting grooves on the two main boards are arranged in a staggered manner in the direction of the main side of the main board.

The utility model provides a battery module, includes the casing, and the electric core of constituteing by both sides battery cluster is installed to the casing, electric core both sides all are provided with in the casing and overflow the row, overflow row side and be provided with foretell FFC integrated female arranging, two FFC integrated female arranging pass through connecting harness and connect.

Preferably, the overflowing row and the main board are connected through a tray.

Preferably, the information acquisition assembly of one FFC flat cable in the FFC integrated busbar is connected with the acquisition point on one side of the corresponding battery string through the flow busbar, and the information acquisition assembly of the other FFC flat cable is externally connected to the acquisition point on the other side of the corresponding battery string.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model discloses an integrated female arranging of FFC is with the range upon range of setting of mainboard of two at least FFC winding displacement to realize the integration of many FFC winding displacements, compare in the mode that traditional dispersion set up the FFC winding displacement, outside guaranteeing that sufficient acquisition point gathers required parameter information, the space of arranging of FFC winding displacement that has significantly reduced has improved space utilization.

(2) The utility model discloses an FFC integrated bus, connect a plurality of information acquisition subassemblies on the mainboard of every FFC winding displacement, can gather the detection signal of the voltage and the temperature of each battery cell in the battery string comprehensively, help the battery module to normally supply power; wherein the information acquisition subassembly supports the information acquisition piece of connecting by backup pad and the backup pad that sets up in the mounting groove and constitutes, and the front end of backup pad extends the setting along the mounting groove, and the rear end is buckled, can make full use of space, the processing of mainboard and backup pad of being convenient for to can adjust the position of information acquisition piece for battery cell better through turning over the backup pad.

(3) The battery module of the utility model is provided with the FFC integrated bus bars on the two sides of the battery core, which can reduce the arrangement space of FFC wires and improve the space utilization rate besides fully collecting the required parameter information, thereby improving the battery capacitance and enhancing the heat dissipation effect; wherein the information acquisition subassembly that extends from last holding surface collects the voltage isoparametric information of corresponding battery cluster one side, and the information acquisition subassembly that extends from the under bracing face collects the voltage isoparametric information of battery cluster opposite side to collect the information and concentrate on one side of electric core, plan battery module inner space better, improve the space utilization of battery module.

Drawings

Fig. 1 is a front view of an FFC integrated busbar of the present invention;

fig. 2 is a schematic structural diagram (a) of an FFC integrated busbar according to the present invention;

fig. 3 is a schematic structural diagram (ii) of the FFC integrated busbar of the present invention;

fig. 4 is a structural assembly diagram of the battery module according to the present invention.

In the figure:

1. a main board; 101. a major side; 102. an upper support surface; 103. a lower support surface;

2. an information acquisition component; 201. a support plate; 202. an information acquisition sheet;

3. mounting grooves; 4. collecting a connector;

5. a housing; 6. an electric core; 7. an overflow bar; 8. connecting a wire harness; 9. a tray.

Detailed Description

In order to make the utility model realize that the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to be understood, the utility model is further explained by combining the embodiment.

With the rapid development of new energy electric vehicle technology and the continuous guidance of policies, many electric vehicles have been moved to thousands of households instead of fuel vehicles, and in the process, the most important consumers are about the endurance of new energy electric vehicles, and the normal operation of battery modules is required to be maintained to solve the endurance problem. In the use of battery module, need detect each battery cell in the module through FFC winding displacement, gather information such as its voltage and temperature, with signal transmission to control end again to guarantee battery module's normal operating. The existing battery module can usually accommodate more single batteries for improving the electric capacity, and at the moment, a plurality of FFC flat cables are needed to collect the voltage, the temperature and other information of the single batteries.

Example 1

As shown in fig. 1-3, an FFC integrated busbar includes at least two FFC busbars, each FFC busbar includes a main board 1, the main board 1 is generally a long plate-shaped structure, the main board 1 has two opposite main side surfaces 101, and an upper supporting surface 102 and a lower supporting surface 103, and at least one information acquisition assembly 2 is generally disposed on the main board 1.

Specifically, a plurality of mounting grooves 3 are formed in the main board 1, the mounting grooves 3 extend along the length direction of the main board 1, and each mounting groove 3 is correspondingly provided with an information acquisition assembly 2; mainboard 1 has preceding, rear end face, and the mounting groove 3 highly is higher than after in the front in two adjacent mounting grooves 3, and a plurality of mounting grooves 3 that arrange in proper order are cascaded distribution in mainboard 1's length direction to this setting is convenient for information acquisition subassembly 2 to correspond voltage and the temperature signal on gathering the battery cell. As shown in fig. 2 and fig. 3, wherein, the information acquisition assembly 2 includes a supporting plate 201, the front end of the supporting plate 201 extends along the mounting groove 3 and is arranged, the rear end is bent towards the thickness direction of the main plate 1, and the information acquisition piece 202 is supported and connected, such a structure makes full use of space, the processing of the main plate 1 and the supporting plate 201 is convenient, and the position of the information acquisition piece 202 relative to the single battery can be better adjusted by turning over the supporting plate 201, and the position of the information acquisition piece 202 can be adjusted and changed according to the electric core 6, so that the voltage and the temperature signal corresponding to the single battery can be always acquired.

The range upon range of setting of FFC winding displacement in this embodiment, wherein adjacent major surface 101 accordant connection of two adjacent mainboards 1, it is specific, two adjacent major surface 101 can laminate the setting, also can leave the clearance between the two to realize the integration of many FFC winding displacements, compare in the mode that traditional dispersion set up the FFC winding displacement, outside guaranteeing that sufficient collection point gathers required parameter information, the arrangement space of the FFC winding displacement that has significantly reduced has improved space utilization. After the FFC cables acquire the required information, the signals need to be transmitted, and for this reason, in this embodiment, the end portions of the main boards 1 of the FFC cables are commonly electrically connected to the acquisition connector 4 to transmit the signals in a centralized manner.

In another possible embodiment, the FFC integrated busbar includes two FFC bus lines, wherein the information acquisition component 2 on one FFC bus line extends upward to form the upper supporting surface 102 of the main board 1, the information acquisition component 2 on the other FFC bus line extends downward to form the lower supporting surface 103 of the main board 1, and the mounting grooves 3 on the two main boards 1 are arranged in a staggered manner in the direction of the main side 101 of the main board 1, so that the staggered arrangement of the corresponding information acquisition components 2 is realized, and single batteries are better matched to fully acquire voltage signals or temperature signals.

Example 2

As shown in fig. 4, a battery module includes a housing 5, a battery cell 6 composed of battery strings on two sides is installed on the housing 5, overcurrent bars 7 are arranged on two sides of the battery cell 6 in the housing 5, FFC integrated busbars in embodiment 1 are arranged on the side faces of the overcurrent bars 7, and the two FFC integrated busbars are connected through a connecting wire harness 8, so that voltage and temperature information of the battery strings on two sides in the whole module can be simultaneously acquired through the two FFC integrated busbars.

Wherein overflowing and linking up through tray 9 between row 7 and the mainboard 1, it is specific, can dismantle the connection and overflow row 7 in one side of tray 9, set up the setpoint in the opposite side, location installation FFC winding displacement, information acquisition piece 202 in the FFC winding displacement passes the trompil on tray 9, is connected to overflowing row 7 to it is even as an organic whole with each information acquisition subassembly 2 through overflowing row 7.

In another possible embodiment, information such as voltage and temperature of the left part and the right part of the battery string on one side needs to be collected, FFC bus bars need to be correspondingly arranged on the left part and the right part of the battery string on one side in the prior art, so that arrangement of electric devices and wiring harnesses in the battery module can be increased, and space in the battery module is not favorably and fully utilized. For this reason, the integrated female arranging of FFC in this embodiment includes two FFC winding displacement, the information acquisition subassembly 2 of one of them FFC winding displacement passes through the row 7 that overflows and connects the collection point that corresponds battery cluster one side, the information acquisition subassembly 2 of another FFC winding displacement is external to the collection point that corresponds battery cluster opposite side, and is concrete, the information acquisition subassembly 2 of another FFC winding displacement can be connected with casing 5, arrange the collection point that is connected to corresponding battery cluster opposite side through the pencil on casing 5, so arrange and can concentrate information collection in one side of electric core 6, plan battery module inner space better, improve the space utilization of battery module.

In the description of this patent, it is to be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "front", "back", "clockwise", "counterclockwise", and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation and positional relationship shown in the drawings, and are used for convenience of description and simplicity of description, but 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 therefore should not be construed as limiting the patent.

In this patent, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather that the principles of the invention are described in the above embodiments and the description, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an integrated female arranging of FFC, includes two at least FFC winding displacement, and every FFC winding displacement includes mainboard (1), and mainboard (1) has two relative major side (101), is provided with at least one information acquisition subassembly (2) on mainboard (1), its characterized in that, the mainboard (1) of FFC winding displacement range upon range of setting, wherein adjacent major side (101) the mating connection of two adjacent mainboards (1).

2. The FFC integrated busbar according to claim 1, wherein: be provided with a plurality of mounting grooves (3) on mainboard (1), it is a plurality of mounting groove (3) are followed the length direction of mainboard (1) extends and arranges, and every mounting groove (3) correspond and set up information acquisition subassembly (2).

3. The FFC integrated busbar according to claim 2, wherein: mainboard (1) has preceding, rear end face, and the mounting groove (3) highly is higher than behind in the front in two adjacent mounting grooves (3), and a plurality of mounting grooves (3) that arrange in proper order are cascaded distribution in the length direction of mainboard (1).

4. The FFC integrated busbar according to claim 2, wherein: the information acquisition assembly (2) comprises a supporting plate (201), the front end of the supporting plate (201) extends along the mounting groove (3), and the rear end of the supporting plate (201) bends towards the thickness direction of the main plate (1) and supports and is connected with the information acquisition piece (202).

5. The FFC integrated busbar according to claim 1, wherein: the end parts of the main boards (1) of the FFC flat cables are electrically connected with the acquisition connector (4) together.

6. The FFC integrated busbar according to any one of claims 1-5, wherein: the FFC integrated busbar comprises two FFC flat cables, each main board (1) comprises corresponding upper and lower supporting surfaces, an information acquisition assembly (2) on one FFC flat cable extends upwards to form an upper supporting surface (102) of the main board (1), and an information acquisition assembly (2) on the other FFC flat cable extends downwards to form a lower supporting surface (103) of the main board (1).

7. The FFC integrated busbar according to claim 6, wherein: in the direction of looking at the main side surface (101) of the main board (1), the mounting grooves (3) on the two main boards (1) are arranged in a staggered mode.

8. The utility model provides a battery module, includes casing (5), and electric core (6) of constituteing by both sides battery cluster are installed in casing (5), its characterized in that: the FFC integrated busbar is characterized in that overcurrent bars (7) are arranged on two sides of an electric core (6) in the shell (5), the FFC integrated busbar of claim 6 or claim 7 is arranged on the side face of each overcurrent bar (7), and the two FFC integrated busbars are connected through a connecting wire harness (8).

9. The battery module according to claim 8, wherein: the overflowing row (7) is connected with the main board (1) through a tray (9).

10. The battery module according to claim 9, wherein: the information acquisition assembly (2) of one FFC flat cable in the FFC integrated busbar is connected with the acquisition point on one side of the corresponding battery string through the overcurrent bar (7), and the information acquisition assembly (2) of the other FFC flat cable is externally connected to the acquisition point on the other side of the corresponding battery string.