CN210272471U

CN210272471U - New energy automobile battery pack shell

Info

Publication number: CN210272471U
Application number: CN201921408333.2U
Authority: CN
Inventors: 吴伟强; 巫圣鹏; 杨贵有
Original assignee: Xiamen Golden Dragon Auto Body Co Ltd
Current assignee: Xiamen Golden Dragon Auto Body Co Ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-04-07
Anticipated expiration: 2029-08-28

Abstract

The utility model relates to a new energy automobile battery package casing, include: the lower shell assembly comprises a lower shell body and a fixing part; the lower shell body is internally provided with a reinforcing piece, and the bottom of the reinforcing piece is fixed with a fixing part which is used for being fixed with the frame; the lower shell body is detachably connected with the upper shell assembly, and a battery installation space is formed inside the lower shell body. The fixed part at the bottom of the lower shell plays a role in fixing when being installed with the frame, and the structure can save the design of a lifting lug on the traditional battery shell and can effectively reduce the total mass of the battery pack shell; the casing is inside to have the reinforcement down, satisfying under conditions such as structural strength and rigidity, has realized the lightweight design betterly, increases battery package energy density effectively, the utility model discloses a reinforcement and mounting be the welding of stamping forming spare, can reduce manufacturing cost from this, promote production efficiency.

Description

New energy automobile battery pack shell

Technical Field

The utility model relates to a new energy automobile accessory technical field, more specifically the utility model relates to a new energy automobile battery package casing that says so.

Background

The battery pack is one of important sub-assemblies of new energy automobile, and the battery pack shell structure mainly is tailor-welded structure, opposite sex steel plate stamping structure and cast aluminium structure on the existing market. The production efficiency of the tailor-welded structure is low, and the requirement of mass production is difficult to meet; the cast aluminum structure material has high cost; most of the traditional special-shaped steel plates are punched to be provided with lifting lug structures, so that the requirement of energy density of a battery pack cannot be met. Therefore, how to provide a battery can structure with simple structure, light weight and low cost is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least

Therefore, an object of the utility model is to provide a new energy automobile battery package casing has solved current battery case's with high costs, the weight is heavy and the technical problem that the structure is complicated.

The utility model provides a new energy automobile battery package casing, include:

an upper housing assembly, and

the lower shell component comprises a lower shell body and a fixing part; the lower shell body is internally provided with a reinforcing piece, the bottom of the reinforcing piece is fixed with a fixing part, and the fixing part is used for being fixed with the frame; the lower shell body is detachably connected with the upper shell assembly, and a battery installation space is formed inside the lower shell body.

According to the technical scheme, compared with the prior art, the utility model discloses a new energy automobile battery pack shell, the fixed part at the bottom of the lower shell plays a role of fixing when being installed with a frame, the structure can save the design of a pack lifting lug on the traditional battery shell, and the total mass of the battery pack shell can be effectively reduced; the casing is inside to have the reinforcement down, satisfying under conditions such as structural strength and rigidity, has realized the lightweight design betterly, increases battery package energy density effectively, the utility model discloses a reinforcement and mounting be the welding of stamping forming spare, can reduce manufacturing cost from this, promote production efficiency.

Preferably, the upper shell assembly is made of a light polymer material, and the lower shell body is made of steel, wherein the upper shell assembly can be made of plastics, SMC (sheet molding compound) and the like, so that the quality of the battery pack shell is reduced.

Preferably, the edge of the joint of the lower shell body and the upper shell assembly is provided with a circumferential flange, and the corresponding flange of the lower shell body is welded with a reinforcing part. The strength of the battery pack shell is improved.

Preferably, the reinforcing part is a plurality of reinforcing strips, each reinforcing strip is provided with a fixing hole matched with the upper shell assembly and the lower shell body, and is welded on the corresponding flange of the lower shell body through spot welding. The reinforcing strips are stamping parts, and the structure and the dimension specification of the reinforcing strips are selected and designed according to practical application.

Preferably, the reinforcing part comprises a plurality of reinforcing plates which are welded together to form an independent closed framework and are enclosed on the bottom edge of the inner wall of the lower shell body. The rigidity of the overall reinforcing part is improved, and the strength of the battery pack shell is further improved.

Preferably, the reinforcing part and the bottom edge of the inner wall of the lower shell body are welded by spot welding and secondary welding.

Preferably, the fixing parts comprise a plurality of arc-shaped plate structures which are wrapped with feet, are fixed with the transition part of the corner at the bottom of the lower shell body, are provided with bolt holes and are fixed with the frame through bolts; the foot-wrapping arc plate structure is attached to the edge of the lower shell body, so that the strength of the lower shell body is increased, the foot-wrapping arc plate structure can be fixed with a frame, the traditional lug wrapping design is reduced, and the weight of the shell is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an exploded view of a new energy vehicle battery pack case provided by the present invention;

fig. 2 is a schematic structural diagram of a lower housing body of a new energy vehicle battery pack housing provided by the present invention;

fig. 3 is a schematic structural diagram of a new energy vehicle battery pack case provided by the utility model.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "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 shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not 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 limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The embodiment of the utility model discloses new energy automobile battery package casing has solved current battery case's with high costs, the heavy technical problem who reaches the structure complicacy of weight.

Referring to fig. 1-3, the utility model provides a new energy automobile battery package casing, include:

an upper housing assembly 1, and

a lower housing assembly 2, the lower housing assembly 2 including a lower housing body 21 and a fixing portion 22; the lower shell body 21 is internally provided with a reinforcing piece 3, the bottom of the reinforcing piece is fixed with a fixing part 22, and the fixing part 22 is used for being fixed with a frame; the lower case body 21 is detachably connected to the upper case assembly 1, and a battery mounting space is formed inside.

The utility model discloses a new energy automobile battery pack shell, wherein a fixed part at the bottom of a lower shell plays a role in fixing when being installed with a frame, and the structure can save the design of a packaging lug on the traditional battery shell and effectively reduce the total mass of the battery pack shell; the casing is inside to have the reinforcement down, satisfying under conditions such as structural strength and rigidity, has realized the lightweight design betterly, increases battery package energy density effectively, the utility model discloses a reinforcement and mounting be the welding of stamping forming spare, can reduce manufacturing cost from this, promote production efficiency.

Advantageously, the upper case member 1 is made of a light polymer material, and the lower case body 21 is made of a steel material, wherein the upper case member may be made of plastic, SMC, or the like, which reduces the mass of the battery pack case.

In an embodiment provided by the utility model, the edge of the junction of lower casing body 21 and upper casing assembly 1 all has the flange of circumference, and the flange position welding that lower casing body 21 corresponds has the rib. Thereby improving the strength of the battery pack case.

Specifically, the reinforcing portion is a plurality of reinforcing bars 23, and each reinforcing bar 23 is provided with a fixing hole matched with the upper shell assembly 1 and the lower shell body 21 and is welded on the corresponding flange of the lower shell body 21 through spot welding.

In another embodiment of the present invention, the reinforcement 3 comprises a plurality of reinforcement plates welded together to form an independent closed framework and enclosed on the bottom edge of the inner wall of the lower housing body 21. The reinforcing strips are stamping parts, so that the manufacturing is convenient, the processing cost is reduced, and the structure and the size specification of the reinforcing strips are selected and designed according to practical application.

Specifically, the reinforcing member 3 and the bottom edge of the inner wall of the lower case body 21 are welded by spot welding or two-arc welding.

In another embodiment of the present invention, the fixing portion 22 includes a plurality of arc plates for covering feet, and is fixed to the bottom corner transition of the lower case body 21, and has bolt holes thereon, and is fixed to the frame by bolts. The foot-wrapping arc plate structure is attached to the edge of the lower shell body, so that the strength of the lower shell body is increased, the foot-wrapping arc plate structure can be fixed with a frame, the traditional lug wrapping design is reduced, and the weight of the shell is reduced.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a new energy automobile battery package casing which characterized in that includes:

an upper housing assembly (1), and

a lower housing assembly (2), the lower housing assembly (2) including a lower housing body (21) and a fixing portion (22); the lower shell body (21) is internally provided with a reinforcing piece (3), the bottom of the lower shell body is fixed with the fixing part (22), and the fixing part (22) is used for being fixed with a frame; the lower shell body (21) is detachably connected with the upper shell assembly (1), and a battery installation space is formed inside the lower shell body.

2. The new energy automobile battery pack shell as claimed in claim 1, wherein the upper shell assembly (1) is made of a light polymer material, and the lower shell body (21) is made of a steel material.

3. The new energy automobile battery pack shell as claimed in claim 1, wherein the edges of the joint of the lower shell body (21) and the upper shell assembly (1) are provided with circumferential flanges, and reinforcing parts are welded at the positions of the flanges corresponding to the lower shell body (21).

4. The new energy automobile battery pack shell according to claim 3, wherein the reinforcing part is a plurality of reinforcing bars (23), each reinforcing bar (23) is provided with a fixing hole matched with the upper shell assembly (1) and the lower shell body (21) and is welded on the corresponding flange of the lower shell body (21) through spot welding.

5. The new energy automobile battery pack shell as claimed in claim 3, wherein the reinforcement (3) comprises a plurality of reinforcement plates which are welded together to form an independent closed framework and are enclosed on the bottom edge of the inner wall of the lower shell body (21).

6. The new energy automobile battery pack shell as claimed in claim 5, wherein the reinforcement (3) and the bottom edge of the inner wall of the lower shell body (21) are welded by spot welding and secondary shielded welding.

7. The new energy automobile battery pack shell as claimed in claim 3, wherein the fixing portion (22) comprises a plurality of arc-shaped foot plates fixed to the bottom corner transition of the lower shell body (21), and has bolt holes for fixing to the vehicle frame through bolts.