CN216085174U

CN216085174U - Battery module

Info

Publication number: CN216085174U
Application number: CN202122388195.XU
Authority: CN
Inventors: 朱哲聪; 李磊; 郑琳; 孙世强
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-03-18
Anticipated expiration: 2031-09-29

Abstract

The utility model provides a battery module, and relates to the technical field of batteries. The battery module includes module upper cover and aluminium ba. The aluminum bar is used for being connected with the battery cell pole. The module upper cover is provided with first connecting portion, and the aluminium bar is provided with the second connecting portion, and first connecting portion and the cooperation of second connecting portion can realize module upper cover and aluminium bar fixed connection, make things convenient for the installation or the dismantlement of module upper cover. Therefore, the utility model has simple structure, reduces the number of structural members of the battery module, improves the integration level of the battery module and reduces the cost.

Description

Battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery module.

Background

Conventional modules typically secure the module top cover to the plastic tray by having a retaining clip pass through the clip through hole and connect with the clip securing hole on the plastic tray. This fixed mode need use fixed buckle and plastics tray, also need carry out the trompil with module upper cover simultaneously, leads to module upper cover integrated level low, the structure is complicated, and the installation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery module which is high in integration and convenient to install.

The embodiment of the utility model is realized by the following steps:

in a first aspect, the utility model provides a battery module, which comprises a module upper cover and an aluminum bar;

the aluminum bar is used for being connected with the battery cell pole;

the module upper cover is provided with first connecting portion, the aluminium bar is provided with the second connecting portion, first connecting portion with the cooperation of second connecting portion is so that the module upper cover with aluminium bar detachably connects.

In an alternative embodiment, the first connecting portion is a protrusion, and the second connecting portion is a through hole.

In an alternative embodiment, the protrusion has an interference fit with the through hole.

In an alternative embodiment, the through-hole is formed by stamping.

In an alternative embodiment, the aluminum bar comprises a fixing part and a boss, and the boss is convexly arranged on the fixing part;

one side face, far away from the boss, of the fixing part is used for being connected with the battery cell pole, and one side face, far away from the fixing part, of the boss is connected with the module upper cover.

In an alternative embodiment, the second connection opens into the boss.

In an optional embodiment, the plurality of first connection portions and the plurality of second connection portions are distributed in a plurality of rows, and the plurality of first connection portions correspond to the plurality of second connection portions one to one.

In an alternative embodiment, the first connecting portions of two adjacent columns are staggered.

In an alternative embodiment, the module upper cover is provided with a surrounding edge, and the surrounding edge is used for covering the aluminum bar.

In an alternative embodiment, the width of the skirt is greater than or equal to the thickness of the aluminium bar.

The battery module provided by the embodiment of the utility model has the beneficial effects that: the module upper cover is provided with first connecting portion, and the aluminium bar is provided with the second connecting portion, connects through first connecting portion and second connecting portion cooperation, can realize module upper cover and aluminium bar fixed connection, makes things convenient for the installation or the dismantlement of module upper cover. Therefore, the utility model has simple structure, reduces the number of structural members of the battery module, improves the integration level of the battery module and reduces the cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

FIG. 2 is a schematic diagram of an upper cover structure according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an aluminum bar according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an installation state of the upper cover and the aluminum bar according to the embodiment of the present invention.

Icon: 10-a battery module; 100-module upper cover; 110 — a first connection; 111-bumps; 130-a surrounding edge; 300-aluminium bars; 310-a second connection; 311-a via hole; 330-a fixed part; 331-mounting holes; 350-a boss; 500-a frame; 700-electric core; 710-cell pole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The battery module upper cover integrated level is low in current scheme, need utilize fixed buckle and plastics tray, and the module upper cover needs the trompil simultaneously, and present battery module is mostly the CCS subassembly of FPC scheme, does not have the plastics tray, can not use the fixed module upper cover of this scheme.

Referring to fig. 1, in order to solve the above problem, the present invention provides a battery module 10, and the battery module 10 may be used in the fields of new energy vehicles and the like.

In the present embodiment, the battery module 10 includes a module upper cover 100, an aluminum bar 300, a frame 500, and a battery cell 700. The aluminum bar 300 is used for connecting with the cell pole 710.

Specifically, the frame 500 is composed of an end plate structural member formed of an aluminum alloy material and a side plate structural member formed of an aluminum alloy material, and thus the structural strength of the frame 500 is high. The cell 700 is accommodated in the frame 500, and the aluminum bar 300 is welded to the cell post 710.

In this embodiment, the number of the aluminum bars 300 is plural, and the plural aluminum bars 300 are distributed in two rows and connected to the cell pole 710. The aluminum bar 300 is formed of an aluminum alloy material, and the aluminum bar 300 may be made of other conductive materials. And is not particularly limited herein. Referring to fig. 2 to 4, the module top cover 100 is provided with a first connecting portion 110, the aluminum bar 300 is provided with a second connecting portion 310, and the first connecting portion 110 and the second connecting portion 310 cooperate to detachably connect the module top cover 100 and the aluminum bar 300.

In this embodiment, the module upper cover 100 is formed by a PC material through blister molding, and the first connection portion 110 provided on the module upper cover 100 and the second connection portion 310 provided on the aluminum bar 300 are engaged with each other, so that the module upper cover 100 and the aluminum bar 300 can be detachably connected, and the module upper cover 100 can be easily and quickly mounted or dismounted without other structural members, thereby improving the integration level of the battery module 10. On the premise of not reducing the safety reliability and the performance, the manufacturing process difficulty is reduced, and the manufacturing cost is reduced.

Further, the plurality of first connection portions 110 and the plurality of second connection portions 310 are distributed in a plurality of rows, and the plurality of first connection portions 110 correspond to the plurality of second connection portions 310 one to one.

In this embodiment, the number of the first connecting portions 110 and the second connecting portions 310 is a plurality of, and two parallel rows are distributed, and the plurality of first connecting portions 110 and the plurality of second connecting portions 310 are in one-to-one correspondence, so as to ensure the stability of the module upper cover 100.

Further, the first connecting portions 110 of two adjacent columns are staggered.

In this embodiment, any one of the first connecting portions 110 in one row with a smaller number corresponds to the middle of two closer first connecting portions 110 in the other row, so that the first connecting portions 110 in two adjacent rows are staggered, thereby improving the mounting stability of the module upper cover 100 and the aluminum bar 300 and preventing the module upper cover 100 and the aluminum bar 300 from rotating or displacing relatively.

Optionally, the number and distribution of the first connection portions 110 and the second connection portions 310 may be other arrangements, and may be adjusted according to practical applications.

Further, the first connection portion 110 is a protrusion 111, and the second connection portion 310 is a through hole 311. The protrusion 111 is interference-fitted with the through hole 311.

In the present embodiment, the outer diameter of the protrusion 111 is slightly larger than the diameter of the through hole 311, so that the module upper cover 100 and the aluminum bar 300 are fixed by interference fit of the protrusion 111 and the through hole 311, so as to reliably fix the module upper cover 100 on the aluminum bar 300, and at the same time, the module upper cover 100 and the aluminum bar 300 are detachably connected. Meanwhile, the protrusion 111 and the through hole 311 are simple in structure, convenient to process and low in manufacturing cost.

Further, the aluminum bar 300 includes a fixing portion 330 and a boss 350, and the boss 350 is protruded from the fixing portion 330. One side of the fixing portion 330 away from the boss 350 is used for being connected with the cell post 710, and one side of the boss 350 away from the fixing portion 330 is connected with the module upper cover 100. The second connection portion 310 is opened to the boss 350.

In the embodiment, the bosses 350 are protruded from the fixing portion 330, so that the bosses 350 are spaced apart from the battery cell 700 when the fixing portion 330 is connected to the battery cell post 710. The second connection portion 310 is a through hole 311, and the through hole 311 is opened in the boss 350, so that when the protrusion 111 extends into the through hole 311 and is in interference fit with the through hole 311, the protrusion 111 may penetrate through the through hole 311 and extend into a gap between the boss 350 and the battery cell 700, so as to ensure that the protrusion 111 can be in interference fit with the through hole 311 stably, and meanwhile, the protrusion 111 and the battery cell 700 can be prevented from being abutted and connected.

It is understood that the number of the bosses 350 may be one or more, and the number of the bosses 350 may be set according to the specific structure of the aluminum bar 300. The second connection part 310 may be provided on each of the bosses 350, and may also be provided on some of the bosses 350. In the present embodiment, the second connection portion 310 is disposed on the boss 350 in the middle of the aluminum bar 300.

In this embodiment, the fixing portion 330 of the aluminum bar 300 further has a mounting hole 331 formed therein, and the mounting hole 331 corresponds to the cell post 710, so as to facilitate welding the aluminum bar 300 on the cell post 710.

Further, the through hole 311 and the boss 350 are both formed by punching.

In this embodiment, the through hole 311 and the boss 350 are both formed by stamping, so that the size and shape accuracy of the through hole 311 and the boss 350 can be ensured, and the through hole 311 and the boss 350 are simple in structure, so that the stamping processing is convenient, and the manufacturing cost is reduced.

Further, the module cover 100 is provided with a surrounding edge 130, and the surrounding edge 130 is used for covering the aluminum bar 300. The width of the skirt 130 is greater than or equal to the thickness of the aluminium bar 300.

In the present embodiment, the surrounding edge 130 is disposed around the module top cover 100, so as to enhance the structural strength of the module top cover 100. The thickness of the aluminum bar 300 is the difference between the distance between the surface of the boss 350 connected to the module upper cover 100 and the distance between the surface of the fixing portion 330 connected to the cell post 710. The width of the surrounding edge 130 is greater than or equal to the thickness of the aluminum bar 300, so that when the module upper cover 100 is fixedly mounted on the aluminum bar 300, the surrounding edge 130 can completely shield the aluminum bar 300, the aluminum bar 300 can be protected, and meanwhile, electric leakage or short circuit caused by contact between other structural members and the aluminum bar 300 can be avoided.

In summary, the present invention provides a battery module 10, in which the first connection portion 110 of the module upper cover 100 is matched with the second connection portion 310 of the aluminum bar 300, so that the module upper cover 100 and the aluminum bar 300 can be detachably connected, the module upper cover 100 can be easily and quickly mounted or dismounted, the module upper cover 100 can be fixedly mounted without using other structural members, and the integration level of the battery module 10 is improved. On the premise of not reducing the safety reliability and the performance, the manufacturing process difficulty is reduced, and the manufacturing cost is reduced. The module upper cover 100 and the aluminum bar 300 are fixed by the interference fit of the protrusion 111 and the through hole 311, so that the module upper cover 100 is reliably fixed on the aluminum bar 300, and the module upper cover 100 and the aluminum bar 300 are detachably connected. Meanwhile, the protrusion 111 and the through hole 311 are simple in structure, convenient to process and low in manufacturing cost. The second connecting portion 310 is a through hole 311, and the through hole 311 is opened in the boss 350, so that the protrusion 111 can be ensured to be in interference fit with the through hole 311 stably, and meanwhile, the protrusion 111 and the battery cell 700 can be prevented from being connected in a butting manner. The surrounding edge 130 is arranged on the module upper cover 100, so that the structural strength of the module upper cover 100 can be enhanced, meanwhile, the surrounding edge 130 completely shields the aluminum bar 300, the aluminum bar 300 can be protected, and meanwhile, the phenomenon that other structural members are in contact with the aluminum bar 300 to cause electric leakage or short circuit and the like is avoided.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery module is characterized by comprising a module upper cover and an aluminum bar;

the aluminum bar is used for being connected with the battery cell pole;

2. The battery module according to claim 1, wherein the first connection part is a protrusion, and the second connection part is a through-hole.

3. The battery module according to claim 2, wherein the protrusion is in interference fit with the through hole.

4. The battery module according to claim 2, wherein the through-hole is formed by punching.

5. The battery module according to claim 1, wherein the aluminum bar comprises a fixing portion and a boss protruding from the fixing portion;

6. The battery module according to claim 5, wherein the second connection portion is opened to the boss.

7. The battery module according to claim 1, wherein the plurality of first connecting portions and the plurality of second connecting portions are distributed in a plurality of rows, and the plurality of first connecting portions correspond to the plurality of second connecting portions one to one.

8. The battery module according to claim 7, wherein the first connecting portions of two adjacent rows are staggered.

9. The battery module according to claim 1, wherein the module upper cover is provided with a peripheral edge for covering the aluminum bars.

10. The battery module of claim 9, wherein the peripheral edge has a width greater than or equal to the thickness of the aluminum bar.