CN215299458U

CN215299458U - Battery module sampling assembly and battery pack

Info

Publication number: CN215299458U
Application number: CN202121753114.5U
Authority: CN
Inventors: 葛有为; 薛晨; 于达; 刘书言
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2021-12-24
Anticipated expiration: 2031-07-28

Abstract

The utility model relates to a battery module sampling assembly and battery package, this battery module sampling assembly includes: the battery module comprises a bracket, a battery module and a battery module, wherein a weight reduction opening and a mounting hole for an electrode of the battery module to pass through are formed in the bracket; the bus bars are arranged in parallel, the bus bars are detachably connected with one surface of the support, each bus bar is provided with a connecting hole used for being connected with an electrode of a battery module, and the connecting holes are communicated with the mounting holes; and the flexible circuit board is electrically connected with the plurality of busbars and is connected with one surface of the support. This battery module sampling assembly light in weight can alleviate the total weight of whole battery package to improve the energy density of battery package.

Description

Battery module sampling assembly and battery pack

Technical Field

The utility model relates to a power battery technical field specifically relates to a battery module sampling assembly and battery package.

Background

The module sampling assembly is used as a part under the module in the battery pack and used for collecting information of the battery module.

The current module sampling assembly is heavy, and the total weight of the whole battery pack is overweight, so that the energy density of the battery pack is limited.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a battery module sampling assembly and battery package, can alleviate the total weight of whole battery package to improve the energy density of battery package.

In order to achieve the above object, the present disclosure provides a battery module sampling assembly in one aspect, including:

the battery module comprises a bracket, a battery module and a battery module, wherein a weight reduction opening and a mounting hole for an electrode of the battery module to pass through are formed in the bracket;

the bus bars are arranged in parallel, the bus bars are detachably connected with one surface of the support, each bus bar is provided with a connecting hole used for being connected with an electrode of a battery module, and the connecting holes are communicated with the mounting holes;

and the flexible circuit board is electrically connected with the plurality of busbars and is connected with one surface of the support.

Optionally, the weight reducing openings include a plurality of first weight reducing openings and a plurality of second weight reducing openings, at least one first weight reducing opening is arranged at a joint of each busbar and the bracket, and at least one second weight reducing opening is arranged between every two adjacent busbars.

Optionally, the lightening hole further comprises a third lightening hole, the number of the busbars is at least two, and the third lightening hole is located between two adjacent rows of the busbars.

Optionally, the mounting hole is further provided with a mounting notch for taking and placing the busbar.

Optionally, the bus bar is formed with positioning chamfers at opposite sides thereof for identifying an installation direction.

Optionally, a plurality of buckle groups are formed on the bracket, the plurality of buckle groups are arranged in one-to-one correspondence with the plurality of busbars, each buckle group includes a plurality of buckles, the plurality of buckles in the buckle group corresponding to each busbar are arranged around the busbar, and the buckles are used for clamping and stopping the busbars on the bracket.

Optionally, the middle part of each bus bar protrudes outwards to form an arch, so that the bus bars are formed into a shape of a Chinese character 'ji'.

Optionally, the support is formed with a support plate, the support plate is located in the arch, and one end of the support plate, which is far away from the support, abuts against the inner top wall of the arch.

Optionally, each bus bar is provided with an electrical connector, and one end of each electrical connector, which is far away from the bus bar, is connected with the flexible circuit board.

On the other hand, this disclosure still provides a battery package, including battery module and as above-mentioned battery module sampling assembly, the support sets up the top of battery module, the electrode on the battery module passes on the mounting hole on the support and with the connecting hole on the busbar is connected.

Through the technical scheme, the weight of the battery pack can be effectively reduced by adopting the bracket and the weight reducing port arranged on the bracket, so that the capacity density of the battery pack is improved. The buckle through busbar and support is connected, can make things convenient for the busbar to be fixed with the installation of support, can improve the assembly efficiency in the production process, improves holistic production efficiency.

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 without limiting the disclosure. In the drawings:

fig. 1 is a perspective view of a battery module sampling assembly according to one embodiment of the present disclosure;

fig. 2 is a front view of a battery module sampling assembly of one embodiment of the present disclosure;

fig. 3 is an enlarged view of position a of a battery module sampling assembly according to an embodiment of the present disclosure;

FIG. 4 is a perspective view of a bracket of one embodiment of the present disclosure;

FIG. 5 is a front view of a stent of an embodiment of the present disclosure;

fig. 6 is an enlarged view of the B position of the stent of one embodiment of the present disclosure.

Description of the reference numerals

1. A support; 2. a bus bar; 3. connecting holes; 4. a flexible circuit board; 5. mounting holes; 6. buckling; 7. an electrical connector; 8. installing a notch; 9. positioning a corner cut; 10. arching; 11. a first lightening opening; 12. a second lightening hole; 13. a third weight reduction port; 14. and a support plate.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with 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, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" are generally defined in the direction of the drawing plane of the drawings, and "inner and outer" refer to the inner and outer of the relevant component parts. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present disclosure, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; 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 disclosure can be understood in specific instances by those of ordinary skill in the art.

As shown in fig. 1-6, one aspect of the present disclosure provides a battery module sampling assembly, including: the flexible printed circuit board comprises a bracket 1, a flexible printed circuit board 4 and a plurality of busbars 2 arranged in parallel.

The holder 1 is formed with a weight-reduction opening and mounting holes 5 for passing electrodes of the battery module. A plurality of busbar 2 can be dismantled with the one side of support 1 and be connected, is equipped with on every busbar 2 to be used for with the connecting hole 3 of the electrode connection of battery module, connecting hole 3 and mounting hole 5 intercommunication. The flexible wiring board 4 is electrically connected to the plurality of bus bars 2 and is connected to one surface of the holder 1.

Optionally, the support 1 is of a long plate structure, the support 1 is made of plastic, the support 1 made of plastic is made of light material, the weight of the battery pack can be effectively reduced, the weight of the support 1 can be reduced through the weight reduction port, and the weight of the battery pack is also reduced. It should be noted that the weight-reducing opening is provided under the condition of not affecting the connection of the bracket 1 with the battery module, the flexible circuit board 4 and the bus bar 2, and at the same time, the whole strength of the bracket 1 is ensured.

Alternatively, in the present embodiment, the bus bar 2 is positioned on one surface of the bracket 1, and the mounting hole 5 is closed, so that the connection hole 3 on the bus bar 2 communicates with the mounting hole 5, thereby connecting the electrode of the battery module with the connection hole 3. Specifically, the mounting holes 5 are plural and correspond one-to-one to the bus bars 2. And the detachable connection of the bus bar 2 and the bracket 1 can facilitate the installation and fixation of the bus bar 2 and the bracket 1, so that the assembly efficiency is high.

Optionally, in this embodiment, the flexible printed circuit 4 is in a strip shape, and the flexible printed circuit 4 extends along the arrangement of the busbars 2, so as to electrically connect all the busbars 2.

Through the technical scheme, the weight of the battery pack can be effectively reduced by adopting the bracket 1 and the weight reducing port arranged on the bracket, so that the capacity density of the battery pack is improved. The buckle through busbar 2 and support 1 is connected, can make things convenient for busbar 2 and support 1's installation fixed, can improve the assembly efficiency in the production process, improves holistic production efficiency.

Optionally, in an embodiment of the present disclosure, the weight-reducing openings include a plurality of first weight-reducing openings 11 and a plurality of second weight-reducing openings 12, at least one first weight-reducing opening 11 is provided at a connection portion of each busbar 2 and the bracket 1, and at least one second weight-reducing opening 12 is provided between every two adjacent busbars 2.

In the embodiment, the first lightening holes 11 correspond to the mounting positions of the bus bars 2 one by one, and the first lightening holes 11 are communicated with the mounting holes 5, so that the connection between the bus bars 2 and the electrodes of the battery module is not affected. Specifically, the bus bar 2 is covered on the first lightening hole 11 and the mounting hole 5. The installation of the busbar 2 can be unaffected by the provision of the plurality of first lightening openings 11, while the strength of the bracket 1 is unaffected.

In the present embodiment, since no mounting or fixing member is required for the bracket 1 between the two adjacent busbars 2, the second lightening hole 12 can be formed by digging through the bracket 1 at this position. In order to ensure the strength of the bracket 1, specifically, two second lightening holes 12 are respectively arranged between every two adjacent busbars 2, and the two second lightening holes 12 are symmetrically arranged, so that the weight of the bracket 1 can be reduced as much as possible, and the strength of the bracket 1 is ensured.

Optionally, in an embodiment of the present disclosure, the lightening holes further include a third lightening hole 13, the busbars 2 are at least two rows, and the third lightening hole 13 is located between two adjacent rows of busbars 2.

In the embodiment, the bus bars 2 are arranged in two rows, so that the two rows of bus bars 2 are respectively arranged on two sides of the support 1 and arranged along the length direction of the support 1, and the third lightening hole 13 is arranged in the middle of the support 1. Specifically, in the present embodiment, the third lightening holes 13 are a plurality of rectangular holes and are arranged in parallel along the length direction of the bracket 1, so that the weight of the bracket 1 can be reduced as much as possible, and the strength of the bracket 1 is ensured.

Optionally, in some other embodiments of the present disclosure, the bus bars 2 may be 3 rows, 4 rows, and the like, the third lightening holes 13 are respectively located directly between two adjacent rows of the bus bars 2, specifically, the size of the third lightening hole 13 may be set according to the material of the bracket 1, the material strength of the bracket 1 is high, and the size of the third lightening hole 13 may be set to be larger, so that the lightening effect is better.

Optionally, in an embodiment of the present disclosure, each mounting hole 5 is further provided with a mounting notch 8 for taking and placing the busbar 2.

Wherein, in this embodiment, installation breach 8 can be two, is located the both sides of mounting hole 5 respectively, can make things convenient for the finger to stretch into installation breach 8 through installation breach 8 in, puts busbar 2 on support 1 to be connected with support 1 buckle. Of course, the number of the installation notches 8 can be one or more, and the installation notches can be arranged according to the needs.

Optionally, in an embodiment of the present disclosure, the bus bar 2 is formed with positioning chamfers 9 at opposite sides thereof for identifying the installation direction.

In the embodiment, the bus bar 2 is rectangular, the positioning chamfers 9 are arranged on two opposite sides of one end of the bus bar 2, and the installation direction of the bus bar 2 is directly determined during assembly, so that the electrode of the battery module is directly matched and connected with the connecting hole 3, the situation that the installation direction is reversed is avoided, and the installation efficiency can be improved. Through the location chamfer 9 that sets up, can also lighten the weight of busbar 2 to can further reduce the weight of whole battery module sampling assembly.

Optionally, in an embodiment of the present disclosure, a plurality of buckle groups are formed on the bracket 1, the plurality of buckle groups are arranged in one-to-one correspondence with the plurality of busbars 2, each buckle group includes a plurality of buckles 6, the plurality of buckles 6 in the buckle group corresponding to each busbar 2 are arranged around the busbar 2, and the buckles 6 are used for clamping the busbar 2 on the bracket 1.

In the present embodiment, the number of the clips 6 in each clip group is four, and the clips are circumferentially arranged according to the shape of the bus bar 2. In the present embodiment, on the basis of the embodiment in which the positioning chamfer 9 is formed on the bus bar 2, two of the clips 6 may be located at the position where the positioning chamfer 9 is provided on the bus bar, and the other two clips 6 are connected to the other end of the bus bar 2, so that the fixing effect on the bus bar 2 is good. Of course, in other embodiments, the number of the snap 6 may be 6 or 8, and the like, which can improve the fixing effect of the bus bar 2.

Alternatively, in one embodiment of the present disclosure, a middle portion of each bus bar 2 is outwardly bulged to form the arch 10, so that the bus bars 2 are formed in a "zigzag" shape.

In the present embodiment, the arch 10 is elongated and extends along one end of the bus bar 2 to the other end, and the two positioning chamfers 9 are located on both sides of the arch 10, so that the fixing balance is better.

In the present embodiment, two connection holes 3 are provided for each busbar 2, and are located on both sides of the arch 10. Through the arch 10 that sets up, can make the convenient downward bending in both sides of arch 10, can do benefit to the electrode connection with battery module, can improve busbar 2's life.

Optionally, in an embodiment of the present disclosure, a support plate 14 is formed on the bracket 1, the support plate 14 is located inside the arch 10, and an end of the support plate 14 away from the bracket abuts against an inner top wall of the arch 10.

In the present embodiment, the supporting plate 14 is disposed along the length direction of the arch 10, so that when the bus bar 2 is mounted on the rack 1, one end of the supporting plate 14 away from the rack extends into the arch 10 and abuts against the inner top wall of the arch 10. Through the backup pad 14 that sets up, can be after the electrode connection of busbar 2 and battery module, press support 1 to the battery module for support 1 is closely connected with the battery module, avoids in the use, and support 1 receives the vibration back, produces the vibration of higher frequency, and influences the collection of flexible line way board 4 to the voltage and the temperature of battery module.

Optionally, in an embodiment of the present disclosure, the end portions of the two ends of the supporting plate 14 have inclined surfaces, which can facilitate the installation of the bus bar 2, so that the end of the supporting plate 14 away from the bracket can conveniently extend into the arch 10.

Alternatively, in an embodiment of the present disclosure, each bus bar 2 is provided with an electrical connector 7, and an end of each electrical connector 7 away from the bus bar 2 is connected to the flexible circuit board 4. The electric connection of the bus bar 2 and the flexible circuit board 4 can be facilitated through the arranged electric connector 7, and the pressure and the temperature of the battery module can be conveniently collected.

Another aspect of this disclosure still provides a battery package, including battery module and as above-mentioned battery module sampling assembly, support 1 sets up the top at battery module, and the electrode on the battery module passes mounting hole 5 on support 1 and is connected with connecting hole 3 on busbar 2.

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

1. The utility model provides a battery module sampling assembly which characterized in that includes:

the battery module comprises a bracket (1), wherein a weight-reducing opening and a mounting hole (5) for an electrode of the battery module to pass through are formed in the bracket (1);

the battery module comprises a plurality of bus bars (2) which are arranged in parallel, wherein the bus bars (2) are detachably connected with one surface of a support (1), each bus bar (2) is provided with a connecting hole (3) used for being connected with an electrode of a battery module, and the connecting holes (3) are communicated with mounting holes (5);

the flexible circuit board (4), flexible circuit board (4) with a plurality of busbar (2) electricity is connected, and with the one side of support (1) is connected.

2. The battery module sampling assembly according to claim 1, wherein the weight-reducing openings comprise a plurality of first weight-reducing openings (11) and a plurality of second weight-reducing openings (12), at least one first weight-reducing opening (11) is arranged at the joint of each busbar (2) and the bracket (1), and at least one second weight-reducing opening (12) is arranged between every two adjacent busbars (2).

3. The battery module sampling assembly of claim 2, wherein the lightening openings further comprise a third lightening opening (13), the number of the busbars (2) is at least two, and the third lightening opening (13) is located between two adjacent rows of the busbars (2).

4. The battery module sampling assembly of claim 1, wherein the mounting hole (5) is further provided with a mounting notch (8) for taking and placing the busbar (2).

5. The battery module sampling assembly of claim 1, wherein the bus bar (2) is formed at opposite sides thereof with positioning chamfers (9) for identifying an installation direction.

6. The battery module sampling assembly of claim 1, wherein a plurality of snap-fit sets are formed on the bracket (1), the plurality of snap-fit sets are arranged in one-to-one correspondence with the plurality of bus bars (2), each snap-fit set comprises a plurality of snaps (6), the plurality of snaps (6) in the snap-fit set corresponding to each bus bar (2) are arranged around the bus bar (2), and the snaps (6) are used for clamping the bus bar (2) on the bracket (1).

7. The battery module sampling assembly of claim 1, wherein a middle portion of each of the bus bars (2) is outwardly bulged to form a dome (10) so that the bus bars (2) are formed in a zigzag shape.

8. The battery module sampling assembly of claim 7, wherein the bracket (1) is formed with a support plate (14), the support plate (14) is located inside the arch (10), and one end of the support plate (14) away from the bracket abuts against an inner top wall of the arch (10).

9. The battery module sampling assembly of any one of claims 1-8, wherein each bus bar (2) is provided with an electrical tab (7), and one end of each electrical tab (7) away from the bus bar (2) is connected to the flexible circuit board (4).

10. A battery pack comprising a battery module and a battery module sampling assembly according to any one of claims 1 to 9, wherein the holder (1) is disposed at the top end of the battery module, and the electrode of the battery module passes through the mounting hole (5) of the holder (1) and is connected to the connection hole (3) of the busbar (2).