CN213278288U

CN213278288U - Battery package casing additional strengthening

Info

Publication number: CN213278288U
Application number: CN202022285999.2U
Authority: CN
Inventors: 蒋旭乾
Original assignee: Shanghai Electric Group Battery Technology Co ltd
Current assignee: Shanghai Electric Group Battery Technology Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-05-25
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a battery package casing additional strengthening relates to battery package technical field, including the frame construction who is used for installing the battery package casing, still including locating a plurality of braced frames on the frame construction, each braced frame all includes: the frame comprises a frame body, wherein two ends of the upper side of the frame body are bent outwards to form two flanging structures; the first folding lug is arranged at one end of the frame body; the two sides of the other end of the frame body are provided with two second folding lugs, and each flanging structure, each second folding lug and each first folding lug are respectively provided with a plurality of fixing holes. It is through increasing strengthening frame, forms violently indulges crisscross enhancement effect, has remain the central channel simultaneously and can be used to arrange other spare parts, adopts the spiro union mode on the mounting means, has avoided complicated manufacturing process, also makes things convenient for the maintenance to dismantle simultaneously.

Description

Battery package casing additional strengthening

Technical Field

The utility model relates to battery package technical field especially involves a battery package casing additional strengthening.

Background

With the development of the new energy automobile industry, the electric quantity demand of the battery pack is on the rising trend, and the improvement of the electric core energy density is slow, so that the battery pack with large electric quantity tends to bring the rising of the weight and the volume, and higher requirements are provided for the strength of the battery pack shell, particularly the lower shell. The current large-scale battery package scheme uses extrusion aluminium tailor-welding as the main scheme, and the stiffening beam extrudes through aluminium extrusion technique and partial casing bottom plate together, and different extruded section bars become complete lower casing through processes such as friction stir welding. Such solution battery packs usually have only cross beams or longitudinal beams. A few schemes have the cross beam and the longitudinal beam, and the cross beam and the longitudinal beam are connected by adopting welding and other modes to form a transverse and longitudinal crossed reinforcing structure. A common battery pack case beam reinforcement structure is shown in fig. 1.

For a battery pack with large electric quantity, a plurality of schemes are adopted in the industry to select large modules (such as standard modules with the length of 590 mm) to be symmetrically arranged in the box body left and right, a central channel is formed between the left and right modules to arrange components such as high and low voltage wire harnesses or liquid cooling pipelines, and the reinforcing scheme is usually that a plurality of cross beams are reinforced or a single longitudinal beam is arranged in the central channel to reinforce the components. A common beam-stiffened large module arrangement is shown in fig. 2.

However, in the case of a large total weight of the battery, the design with only the cross beams or the longitudinal beams may not satisfy the structural strength requirement of the battery pack, or the number of the beams is too large to cause an excessive demand for a single direction space. The cross reinforcing structure of the cross beam and the longitudinal beam can extrude the arrangement space of the high-low pressure wire harness, the liquid cooling pipe and other components, and meanwhile, the complexity of the process can be increased, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery package casing additional strengthening for solve above-mentioned technical problem.

The utility model adopts the technical scheme as follows:

the utility model provides a battery package casing additional strengthening, is including the frame construction that is used for installing the battery package casing, still including locating a plurality of braced frames on the frame construction, each braced frame all includes:

the frame comprises a frame body, wherein two ends of the upper side of the frame body are bent outwards to form two flanging structures;

the first folding lug is arranged at one end of the frame body;

and two second folding lugs are arranged on two sides of the other end of the frame body, and a plurality of fixing holes are respectively formed in the flanging structure, the second folding lugs and the first folding lugs.

Preferably, the frame body has a hollow shell structure with an open upper end.

Preferably, the bending angle of each of the flanging structures is 90 degrees.

Preferably, the bending angle of the first tab is 90 °.

Preferably, each of the second folding ears has a folding angle of 90 °.

Preferably, the first tab is parallel to each of the cuff structures.

Preferably, each second folding lug is perpendicular to each edge-folding structure.

Preferably, the fixing device further comprises a long bolt, and one long bolt is detachably arranged in each fixing hole.

The technical scheme has the following advantages or beneficial effects:

the utility model discloses in, based on the battery package casing scheme that the crossbeam was strengthened, provided a mode that central channel strengthened, through increasing strengthening frame, formed violently indulged crisscross enhancement effect, kept central channel simultaneously and can be used to arrange other spare parts, adopted the spiro union mode on the mounting means, avoided complicated manufacturing process, also made things convenient for the maintenance to dismantle simultaneously.

Drawings

Fig. 1 is a cross member reinforcement structure of a battery pack case, which is common in the prior art;

FIG. 2 is a schematic structural view of a beam reinforcement as is common in the prior art;

fig. 3 is a schematic structural view of a reinforcing frame according to the present invention;

fig. 4 is a schematic view of the installation state of the reinforcing frame in the present invention;

fig. 5 is a schematic view of the mounting structure of the middle battery pack case of the present invention.

In the figure: 1. a frame structure; 11. a cross beam; 12. a stringer; 2. a reinforcing frame; 21. a frame body; 22. a flanging structure; 23. a first folding lug; 24. a second folding lug; 25. a fixing hole; 3. and a battery pack shell.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a cross member reinforcement structure of a battery pack case, which is common in the prior art; FIG. 2 is a schematic structural view of a beam reinforcement as is common in the prior art; fig. 3 is a schematic structural view of a reinforcing frame according to the present invention; fig. 4 is a schematic view of the installation state of the reinforcing frame in the present invention; fig. 5 is a schematic view of the mounting structure of the battery pack case of the present invention, please refer to fig. 1 to 5, which illustrate a preferred embodiment, and the illustrated reinforcing structure of the battery pack case includes a frame structure 1 for mounting a battery pack case 3, and further includes a plurality of reinforcing frames 2 disposed on the frame structure 1, each reinforcing frame 2 includes:

the frame comprises a frame body 21, wherein two ends of the upper side of the frame body 21 are bent outwards to form two flanging structures 22;

a first folding lug 23, wherein one end of the frame body 21 is provided with the first folding lug 23;

the second folding lug 24, two second folding lugs 24 are arranged on two sides of the other end of the frame body 21, and a plurality of fixing holes 25 are respectively arranged on each flanging structure 22, each second folding lug 24 and the first folding lug 23. As shown in fig. 4, the frame structure 1 includes two cross beams 11 and a plurality of longitudinal beams 12, and the plurality of longitudinal beams 12 are disposed between the two cross beams 11, and two ends of each longitudinal beam 12 are respectively connected with the two cross beams 11. In this embodiment, as shown in fig. 3 and 4, two ends of the frame body 21 are connected to the frame structure 1 through the first folding lug 23 and the second folding lug 24, and the plurality of reinforcing frames 2 are located on the same straight line, and the frame body 21 in this embodiment is connected to the frame structure 1 through the long bolts on the first folding lug 23 and the second folding lug 24. In this embodiment, as shown in fig. 4, when the battery pack case 3 is installed in the frame structure 1, the lower surfaces of the two flange structures 22 on the frame body 21 are attached to the upper surface of the battery pack case 3, and then the flange structures 22 are pressed and fixed to the upper surface of the battery pack case 3 by long bolts. In this embodiment, the flanging structure 22 is determined according to the characteristics of the battery pack case 3, and a fixing hole can be formed at the flanging position for the high-low pressure connection part or the flanging structure can be eliminated as required. After the connection is finished, the side walls of the reinforcing frame 2 generate the effect of longitudinal beams in the shell, and the space between the side walls is a central channel of the battery pack and can be used for arranging other parts.

Further, as a preferred embodiment, the frame body 21 is a hollow shell structure with an open upper end.

Further, as a preferred embodiment, the bending angle of each of the flange structures 22 is 90 °. The contour of the cuff structure 22 in this embodiment can be adapted to the actual contour of the module as desired.

Further, as a preferred embodiment, the bending angle of the first bending lug 23 is 90 °. The contour of the first tab 23 in this embodiment can be adapted to the actual contour of the module as desired.

Further, in a preferred embodiment, the bending angle of each second tab 24 is 90 °. The profile of the second tab 24 in this embodiment can be adapted to the actual profile of the module as desired.

Further, as a preferred embodiment, the first tab 23 is parallel to each of the flange structures 22. As shown in fig. 3, the two second folding ears 24 in this embodiment are perpendicular to the frame body 21, and during the installation process, the second folding ears 24 overlap with the inner wall of the battery pack case 3. The reinforcing frame 2 in this embodiment is integrally formed by bending a metal plate.

Further, in a preferred embodiment, each second tab 24 is perpendicular to each cuff structure 22.

Further, as a preferred embodiment, the battery can casing reinforcing structure further includes a long bolt (not shown), and a long bolt is detachably disposed in each fixing hole 25.

The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.

Claims

1. The utility model provides a battery package casing additional strengthening, is including the frame construction that is used for installing the battery package casing, its characterized in that still including locating a plurality of braced frames on the frame construction, each braced frame all includes:

the first folding lug is arranged at one end of the frame body;

2. The battery pack case reinforcing structure of claim 1, wherein the frame body has a hollow case structure with an open upper end.

3. The battery pack case reinforcing structure according to claim 1, wherein each of the burring structures has a bending angle of 90 °.

4. The battery pack case reinforcing structure according to claim 1, wherein the bending angle of the first tab is 90 °.

5. The battery pack case reinforcing structure according to claim 1, wherein each of the second tabs is bent at an angle of 90 °.

6. The battery pack case reinforcing structure of claim 1, wherein the first tab is parallel to each of the flange structures.

7. The battery pack case reinforcing structure of claim 1, wherein each of the second tabs is perpendicular to each of the flange structures.

8. The battery pack case reinforcing structure of claim 1, further comprising a long bolt, wherein one of the long bolts is detachably disposed in each of the fixing holes.