CN218731670U

CN218731670U - Battery module

Info

Publication number: CN218731670U
Application number: CN202222823229.8U
Authority: CN
Inventors: 胡志民
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-24
Anticipated expiration: 2032-10-24

Abstract

The utility model discloses a battery module, which comprises a battery cell combination, a FFC soft row combination, a conductive aluminum row and a partition board, wherein the partition board is arranged on the surface of the battery cell combination, and the conductive aluminum row and the FFC soft row combination are both arranged on the surface of the partition board deviated from the battery cell combination; the conductive aluminum bar comprises an anode aluminum bar, a cathode aluminum bar and a series aluminum bar, wherein the anode aluminum bar, the cathode aluminum bar and the series aluminum bar are arranged at intervals along the length direction of the battery cell combination, and are electrically connected with the FFC soft bar combination and the battery cell combination; the positive aluminum bar and the negative aluminum bar are both positioned at the same end of the battery cell combination and are used for respectively leading out a positive electrode and a negative electrode of the battery cell combination; the series aluminum bars are used for series connection of the cells in the cell combination. The utility model provides a current wire pencil and FPC in the battery module of homonymy output positive pole and negative pole, winding displacement wiring mode design is unreasonable, and circuit and relevant part are more and arrange in a jumble succinctly easily appear, and is with high costs, and security and wholeness are relatively poor, the equal inconvenient problem of installation and maintenance.

Description

Battery module

Technical Field

The utility model belongs to the technical field of power battery combination processing, especially, battery module.

Background

With the popularization of new energy automobiles, the new energy automobiles adopting the power batteries as power sources gradually replace the existing fuel oil automobiles. The power battery is used as the core of a new energy automobile energy system, and the safety, reliability, attractiveness, convenience and the like of the power battery are more and more important to be concerned by host factories and consumers.

A wire harness is a wiring member for connecting electrical devices in a circuit. The FPC, i.e., a flexible printed circuit board, is a flexible printed circuit board made of a polyimide or polyester film as a base material. The existing battery module is usually realized by adopting a wire harness and FPC (flexible printed circuit) winding displacement wiring mode, the production process is complex and high in cost, the number of circuits and related parts is large, the arrangement is messy and not simple, the safety and the integrity are poor, and the installation and the maintenance are inconvenient.

Based on this, the utility model discloses to above-mentioned technical problem, aim at inventing one kind and arrange succinctly, with low costs, security and wholeness preferred, installation and maintenance convenient battery module.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model aims to provide a battery module. The utility model provides a battery module when homonymy output positive pole and negative pole, current wire pencil and FPC winding displacement wiring mode design, it is more and arrange in a jumble succinctly that circuit and associated part easily appear, the production technology is complicated and with high costs, security and wholeness are relatively poor, the equal inconvenient problem of installation and maintenance.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a battery module comprises a battery cell combination, an FFC soft row combination, a conductive aluminum row and a partition plate, wherein the partition plate is arranged on the surface of the battery cell combination, and the conductive aluminum row and the FFC soft row combination are both arranged on the surface of the partition plate away from the battery cell combination; the conductive aluminum bar comprises an anode aluminum bar, a cathode aluminum bar and a series aluminum bar, wherein the anode aluminum bar, the cathode aluminum bar and the series aluminum bar are arranged at intervals along the length direction of the battery cell combination, and are electrically connected with the FFC soft bar combination and the battery cell combination; the positive aluminum bar and the negative aluminum bar are both positioned at the same end of the battery cell combination and are used for respectively leading out a positive electrode and a negative electrode of the battery cell combination; the series aluminum bars are used for series connection of the battery cells in the battery cell combination.

Preferably, the series aluminum bars include a first series aluminum bar, a second series aluminum bar and a third series aluminum bar, the first series aluminum bar is used for connecting the positive electrodes and the negative electrodes on the same sides of two adjacent battery cells in series, the second series aluminum bar is used for connecting the positive electrodes and the negative electrodes on the same sides of the two spaced battery cells in series, and the third series aluminum bar is used for connecting the positive electrodes and the negative electrodes on different sides of the two spaced battery cells in series.

Furthermore, the FFC soft row combination comprises main conductors, branch conductors, terminal seats and PCBs, wherein the two main conductors are arranged in parallel and at intervals, and the terminal seats and the PCBs are arranged on the end parts of the two main conductors on the sides where the anode aluminum rows and the cathode aluminum rows are located; two the main conductor is through dividing the strip to the outside extension all forms many branch conductor, main conductor with branch conductor all through the nickel piece with electrically conductive aluminium row electricity is connected.

Still further, the main conductor is provided with the nickel sheets connected with the second series aluminum row and the third series aluminum row in a one-to-one correspondence manner along the length direction of the battery cell combination.

Still further, the branch conductor is L-shaped, and the outer end of the branch conductor is provided with the nickel sheets which are correspondingly connected with the first series aluminum rows one by one.

Still further, a temperature sensor is arranged near the nickel sheet.

Still further, be provided with a plurality of strengthening ribs on the division board, the strengthening rib is used for separating positive pole aluminium row, negative pole aluminium row, series connection aluminium row, main conductor and branch conductor.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model discloses a soft row of FFC (flexible flat cable) technique has high integrated nature, low space than the wire pencil and occupies advantages such as, simultaneously than current FPC cheaper and in the battery package series connection of complicacy, FFC can buckle at will and avoid crossing with the aluminium row, in the signal acquisition field of battery module, utilizes the soft row of flexible FFC collection signal to have better advantage.

Current battery module is when realizing that electric core series connection homonymy output is anodal and negative pole, the aluminium bar needs the jump to establish ties electric core in its battery module, it is more complicated to make to establish ties, the signal acquisition line need bend and go to weld the aluminium bar of establishing ties by detour, and what FFC can be better goes to realize this target, adopt neatly arranged's electrically conductive aluminium to arrange simultaneously and connect, make battery module homonymy output is anodal and negative pole, can be better establish ties between the adjacent battery module, it is convenient simple, anodal and negative pole aluminium are arranged and are connected shorter safer.

The utility model realizes the collection of the voltage and the temperature of each string of battery modules through the FFC soft rows, abandons the way of collecting wires and FPC, and makes the battery modules more beautiful and reliable; and the height size of the battery module is reduced, the cost is reduced, and the application range of the battery module is enlarged.

Drawings

Fig. 1 is a schematic structural view of a battery module according to the present invention;

fig. 2 is a schematic view of a combination structure of the isolation plate, the FFC flexible busbar combination and the conductive aluminum busbar in the battery module of the present invention;

FIG. 3 is a schematic illustration of the exploded structure of FIG. 2;

fig. 4 is a schematic structural view of the FFC flexible busbar assembly in the battery module of the present invention;

fig. 5 is a schematic view illustrating a series connection between adjacent battery modules.

Description of the reference numerals: 1-cell combination; 11-electric core; 2-FFC soft row combination; 21-a primary conductor; 22-a branch conductor; 23-a terminal block; 24-a PCB; 25-a temperature sensor; 26-nickel plate; 3-conductive aluminum bar; 31-positive aluminum bar; 32-negative aluminum bar; 33-aluminum rows in series; 331-a first series aluminum row; 332-a second aluminum row in series; 333-third aluminum row in series; 4-a separation plate; 41-reinforcing ribs; 42-a through hole; 5-a battery module positive electrode lead-out wire; 6-a battery module negative lead-out wire; 7-adjacent battery module series lines.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

When the battery module is outputting the positive pole and the negative pole on the same side, the existing wire harness and FPC winding displacement wiring mode design easily causes the problems that the number of circuits and related parts is large, the arrangement is messy and not simple, the production process is complex and high in cost, the safety and the integrity are poor, and the installation and the maintenance are inconvenient. The utility model provides a battery module, battery module include that electric core combination 1, the soft combination of arranging of FFC 2, electrically conductive aluminium arrange 3 and division board 4.

As shown in fig. 1, the battery cell assembly 1 is formed by an even number of battery cells 11 side by side, and the positive electrode and the negative electrode of two adjacent battery cells 11 are on opposite sides. The isolation plate 4 is arranged on the surface of the battery cell assembly 1, and the conductive aluminum bar 3 and the FFC soft bar assembly are both arranged on the surface of the isolation plate 4 departing from the battery cell assembly 1; the conductive aluminum bar 3 is electrically connected with the FFC soft bar combination and the battery cell combination 1.

As shown in fig. 2 and 3, the conductive aluminum bar 3 includes a positive aluminum bar 31, a negative aluminum bar 32, and a serial aluminum bar 33, where the positive aluminum bar 31, the negative aluminum bar 32, and the serial aluminum bar 33 are disposed at intervals along a length direction of the cell assembly 1, and are all electrically connected to the FFC soft bar assembly and are all electrically connected to the cell assembly 1; the positive aluminum bar 31 and the negative aluminum bar 32 are both located at the same end of the cell assembly 1 and are used for respectively leading out a positive electrode and a negative electrode of the cell assembly 1; the series aluminum bars 33 are used for connecting the cells 11 in the cell assembly 1 in series. As shown in fig. 5, after the positive aluminum bar 31 and the negative aluminum bar are led out at the same side, the adjacent battery modules can be connected in series better, the connection is convenient and simple, and the connection between the positive aluminum bar and the negative aluminum bar 32 is shorter and safer.

In this embodiment, the aluminum row 33 includes a plurality of first aluminum rows 331, a plurality of second aluminum rows 332 and a third aluminum row 333, where the first aluminum row 331 is used to connect the positive electrodes and the negative electrodes on the same sides of two adjacent battery cells 11 in series, the second aluminum row 332 is used to connect the positive electrodes and the negative electrodes on the same sides of two spaced battery cells 11 in series, and the third aluminum row 333 is used to connect the positive electrodes and the negative electrodes on different sides of two spaced battery cells 11 in series. The third series aluminum bar 333 is located at the other end of the cell assembly 1 away from the positive aluminum bar 31 and the negative aluminum bar 32.

As shown in fig. 3, the partition plate 4 is provided with a plurality of reinforcing ribs 41 respectively arranged on both sides in the width direction of the partition plate 4; the reinforcing ribs 41 are used for separating the positive aluminum row 31, the negative aluminum row 32, the serial aluminum row 33, the main conductor 21 and the branch conductor 22, so that contact between each aluminum row and each conductor is avoided, and meanwhile, the effect of reinforcing the structural strength and stability of the separator is achieved. The partition board is provided with through holes 42 corresponding to the positive aluminum bar 31, the negative aluminum bar 32 and the serial aluminum bar 33 one by one, and the through holes 42 are used for electrically connecting each aluminum bar with a lower battery cell.

As shown in fig. 4, in this embodiment, the FFC soft row combination includes a main conductor 21, a branch conductor 22, a terminal base 23, and a PCB24 (printed circuit board), where the two main conductors 21 extend along the length direction of the cell combination 1, and the two main conductors 21 are parallel to each other and spaced apart from each other; the terminal base 23 and the PCB24 are both disposed on the end portions of the two main conductors 21 on the sides of the positive aluminum row 31 and the negative aluminum row 32; the two main conductors 21 extend outward by striping to form a plurality of branch conductors 22, and the main conductors 21 and the branch conductors 22 are electrically connected with the conductive aluminum bar 3 through nickel sheets 26.

Further, the main conductor 21 is provided with nickel plates 26 connected with the second series aluminum row 332 and the third series aluminum row 333 in a one-to-one correspondence manner along the length direction of the cell combination 1. The branch conductors 22 are bent at will to avoid crossing the aluminum rows, and have a L-shape, and the outer ends thereof are provided with nickel plates 26 connected with the first serial aluminum rows 331 in a one-to-one correspondence. A temperature sensor 25 is provided near the nickel plate 26. The voltage and temperature of each string of battery modules can be acquired through the FFC soft rows, and the manner of acquiring lines and FPC is abandoned, so that the battery module is more attractive and reliable; and the height size of the battery module is reduced, the cost is reduced, and the application range of the battery module is enlarged.

According to the utility model discloses a description and drawing, the technical staff in the field make or use very easily the utility model discloses a arrange succinctly, with low costs, security and wholeness preferred, install and maintain convenient battery module to can produce the positive effect recorded in the utility model.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated on the drawings, it is only for convenience of describing the present invention and simplifying the description, but it does not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated, therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances with reference to the drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims

1. The utility model provides a battery module, battery module includes electric core combination (1), the soft row of combination of FFC (2), electrically conductive aluminium row (3) and division board (4), its characterized in that: the isolation plate (4) is arranged on the surface of the battery cell combination (1), and the conductive aluminum bar (3) and the FFC soft bar combination (2) are both arranged on the surface of the isolation plate (4) away from the battery cell combination (1); the conductive aluminum bar (3) comprises an anode aluminum bar (31), a cathode aluminum bar (32) and a series aluminum bar (33), wherein the anode aluminum bar (31), the cathode aluminum bar (32) and the series aluminum bar (33) are arranged at intervals along the length direction of the battery cell combination (1), and are electrically connected with the FFC soft bar combination and the battery cell combination (1); the positive aluminum bar (31) and the negative aluminum bar (32) are both positioned at the same end of the battery cell assembly (1) and are used for respectively leading out a positive electrode and a negative electrode of the battery cell assembly (1); the series aluminum bars (33) are used for series connection of the cells (11) in the cell combination (1).

2. The battery module according to claim 1, wherein: the series aluminum bar (33) comprises a first series aluminum bar (331), a second series aluminum bar (332) and a third series aluminum bar (333), the first series aluminum bar (331) is used for connecting the positive electrodes and the negative electrodes on the same sides of two adjacent cells (11) in series, the second series aluminum bar (332) is used for connecting the positive electrodes and the negative electrodes on the same sides of two spaced cells (11) in series, and the third series aluminum bar (333) is used for connecting the positive electrodes and the negative electrodes on different sides of the two spaced cells (11) in series.

3. The battery module according to claim 2, wherein: the FFC soft row combination comprises main conductors (21), branch conductors (22), terminal seats (23) and PCBs (24), wherein the two main conductors (21) are parallel to each other and arranged at intervals, and the terminal seats (23) and the PCBs (24) are arranged on the end parts of the two main conductors (21) on the sides where the anode aluminum rows (31) and the cathode aluminum rows (32) are located; two main conductor (21) all form many through dividing the strip to outside extension branch conductor (22), main conductor (21) with branch conductor (22) all through nickel piece (26) with electrically conductive aluminium is arranged (3) and is connected.

4. The battery module according to claim 3, wherein: the main conductor (21) is provided with the nickel sheets (26) which are connected with the second series aluminum row (332) and the third series aluminum row (333) in a one-to-one correspondence manner along the length direction of the battery cell combination (1).

5. The battery module according to claim 3, wherein: the branch conductors (22) are L-shaped, and the nickel sheets (26) which are connected with the first series aluminum rows (331) in a one-to-one corresponding mode are arranged at the outer ends of the branch conductors.

6. The battery module according to claim 3, wherein: and a temperature sensor (25) is arranged near the nickel sheet (26).

7. The battery module according to claim 3, wherein: the isolating plate (4) is provided with a plurality of reinforcing ribs (41), and the reinforcing ribs (41) are used for isolating the positive aluminum row (31), the negative aluminum row (32), the serial aluminum row (33), the main conductor (21) and the branch conductor (22).