CN215732020U

CN215732020U - Composite lightweight battery box

Info

Publication number: CN215732020U
Application number: CN202121759428.6U
Authority: CN
Inventors: 王钦; 曹峰峰; 龚木红
Original assignee: Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-01
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a composite light-weight battery box which comprises a box body and a bent reinforcing plate, wherein the bent part on the second side of the reinforcing plate is embedded in the bottom of the box body, and the convex end face of the first side of the reinforcing plate and the upper end face of a bottom plate of the box body are positioned on the same horizontal plane. The utility model reduces the welding amount of the box body, improves the flatness of the battery box, lightens the weight of the battery box body, improves the energy density of a battery system, and simultaneously improves the cleanliness of the surface of the box body and beautifies the appearance.

Description

Composite lightweight battery box

Technical Field

The utility model belongs to the technical field of batteries, and relates to a composite lightweight battery box.

Background

At present, most battery boxes of battery system manufacturers are formed in a metal plate bending and tailor welding mode or three modes of aluminum profile mold opening and metal plate mold opening, the strength of the forming mode is high, but the energy density is difficult to improve after the battery systems are grouped, the forming mode can have large-area welding of single materials, and the flatness of the box body is poor.

SUMMERY OF THE UTILITY MODEL

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a compound lightweight battery box, includes the box and the reinforcing plate of bending, and the part of bending of reinforcing plate second volume is inlayed inside the bottom half, and the convex terminal surface in reinforcing plate first side and the bottom plate up end of box are in same horizontal plane.

Preferably, the reinforcing sheet is corrugated.

Preferably, the reinforcing plate and the bottom of the tank are shaped to fit each other.

Preferably, the upper end of the reinforcing plate is provided with a plurality of mounting holes.

Preferably, the reinforcing plate has a wave parameter width in the range of 65mm to 70mm and a depth in the range of 4mm to 6 mm.

Preferably, the reinforcing plate is made of HC340L high-strength steel.

Preferably, the housing is made of SMC material.

Preferably, the thickness of the bottom plate of the box body ranges from 6.5mm to 9.2 mm.

Preferably, the reinforcing plate has an overall height in the range of 4mm to 7.2 mm.

Preferably, the reserved height range of the bottom of the box body and the reinforcing plate is 1mm to 2.2 mm.

The utility model has the beneficial effects that:

1. the welding quantity of the box body is reduced, and the flatness of the battery box is improved.

2. The weight of the battery box body is reduced, and the energy density of the battery system is improved.

3. The cleanness of the surface of the box body is improved, and the box body is beautified and beautiful.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the overall structure of the present invention.

Fig. 3 is a partial cross-sectional view of the overall structure of the present invention.

FIG. 4 is a schematic diagram of a stiffener structure according to the present invention.

The reference numerals are explained below: 1-a box body; 2-a reinforcing plate; and 3, mounting holes.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it should be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments, and it should be understood that the present application is not limited to the example embodiments disclosed and described herein. 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 application.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The utility model provides figures 1-4, and in the embodiment of the utility model, a composite light-weight battery box comprises a box body 1 and a reinforcing plate 2, wherein a bent part on the second side of the reinforcing plate 2 is embedded in the bottom of the box body 1, and the protruding end face of the first side of the reinforcing plate 2 and the upper end face of a bottom plate of the box body 1 are in the same horizontal plane. 1 die sinking shaping of box, reinforcing plate 2 inlay and merge and reduced the welding volume to box 1 in box 1 bottom, also alleviateed the weight of battery box simultaneously, and the up end of reinforcing plate 2 and the up end of box 1 bottom plate are in same horizontal plane simultaneously, and the pressure of avoiding external equipment to give lets box 1's bottom plate or reinforcing plate 2 atress alone, and reduces product life, has also guaranteed box 1's roughness.

The reinforcing plate 2 is corrugated. The reinforcing plate 2 is bent in a corrugated shape to improve the rigidity of the whole.

The inner shapes of the reinforcing plate 2 and the bottom plate of the box body 1 are matched with each other. The reinforcing plate 2 and the bottom of the box body 1 are matched in shape, so that the reinforcing plate 2 is firmly installed in the box body 1.

The upper end of the reinforcing plate 2 is provided with a plurality of mounting holes 3. Other internal components can be fixed with the box body 1 through the mounting holes 3 of the reinforcing plate 2.

The width of the wave parameters of the reinforcing plate 2 ranges from 65mm to 70mm, and the depth ranges from 4mm to 6 mm. So that the stiffening plate 2 can be form-fitted to the bottom of the tank 1 during production.

The reinforcing plate 2 is made of HC340L high-strength steel. The reinforcing plate 2 is stable in performance and not prone to deformation in the use process of the battery box.

The box body 1 is made of SMC material. The box body 1 is formed by adopting SMC material through a die sinking process, and the SMC material has excellent electrical insulation property, mechanical property, thermal stability and chemical corrosion resistance.

The thickness of the bottom plate of the box body 1 ranges from 6.5mm to 9.2 mm. The weight reduction of the box body 1 is also kept while the bearing of the box body 1 is ensured.

The reinforcing plate 2 has a total height in the range of 4mm to 7.2 mm. So that the reinforcing plate 2 can be embedded and fused at the bottom of the box body 1 and is reserved with a certain height.

The reserved height range of the bottom of the box body 1 and the reinforcing plate 2 is 1 mm-2.2 mm. The thickness of the bottom plate of the box body 1 is ensured, and damage caused by overlarge pressure in the box body is prevented.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a compound lightweight battery box which characterized in that: the box comprises a box body and a bent reinforcing plate, wherein the bent part on the second side of the reinforcing plate is embedded inside the bottom of the box body, and the convex end face of the first side of the reinforcing plate and the upper end face of a bottom plate of the box body are positioned on the same horizontal plane.

2. The composite light-weight battery box according to claim 1, characterized in that: the reinforcing plate is corrugated.

3. The composite light-weight battery box according to claim 1, characterized in that: the inner shapes of the reinforcing plate and the bottom plate of the box body are mutually matched.

4. The composite light-weight battery box according to claim 1, characterized in that: the upper end of reinforcing plate is provided with a plurality of mounting hole.

5. The composite light-weight battery box as claimed in claim 2, characterized in that: the width range of the wave parameters of the reinforcing plate is 65mm to 70mm, and the depth range is 4mm to 6 mm.

6. The composite light-weight battery box according to claim 1, characterized in that: the reinforcing plate is made of HC340L high-strength steel.

7. The composite light-weight battery box according to claim 1, characterized in that: the box body is made of SMC materials.

8. The composite light-weight battery box according to claim 1, characterized in that: the thickness of the bottom plate of the box body ranges from 6.5mm to 9.2 mm.

9. The composite light-weight battery box according to claim 7, characterized in that: the total height of the reinforcing plate ranges from 4mm to 7.2 mm.

10. The composite light-weight battery box according to claim 9, characterized in that: the reserved height range of the bottom of the box body and the reinforcing plate is 1 mm-2.2 mm.