CN209329008U - Module brackets, battery modules, battery packs, and automobiles - Google Patents

Abstract

The utility model relates to technical field of new energy, a kind of module bracket, battery modules, battery pack and automobile are provided.Module bracket described in the utility model includes module side wall (10), bracket bottom wall (31) and rack side wall (32), the bracket bottom wall (31) is arranged perpendicular to the module side wall (10), the rack side wall (32) extends to the module side wall (10) from the inclination of the outer end of the bracket bottom wall (31), and the bracket bottom wall (31), the rack side wall (32) and the module side wall (10) are integrally formed part.Module bracket provided by the present application realizes the lightweight of battery pack, and effectively improve battery pack shock resistance, anti-drop ability while improving production efficiency, reducing processing cost.

Description

Module brackets, battery modules, battery packs, and automobiles

technical field

The utility model relates to the technical field of new energy vehicles, in particular to a module bracket, a battery module, a battery pack and an automobile.

Background technique

The contemporary automobile industry is undergoing revolutionary changes, that is, traditional fuel vehicles are gradually being replaced by new energy vehicles, among which pure electric vehicles are emerging as a kind of new energy vehicles. Electric vehicles will encounter various complex working conditions during driving. To improve the ability of the battery pack to cope with various working conditions, the structural strength of the battery pack must be improved, and the design of the battery pack structure directly affects the overall safety performance of the battery pack.

The battery pack is placed under the chassis of the vehicle body and has to withstand various adverse effects such as impact from the road, sediment, etc. The module, as the main component of the battery pack, occupies a considerable part of the weight of the battery pack. Therefore, the stability of the module structure is important. Sex is particularly prominent. The bracket of the battery pack module plays the role of protecting the module and the cell, and is usually arranged on both sides of the module. Therefore, in addition to considering the cost when designing the module, it is also necessary to ensure the safety and reliability of the battery pack.

At present, the side walls and module brackets of common battery modules are basically divided into two types. The first is that the module bracket and the module side walls are processed separately, and then connected together by welding. This not only increases the cost of the module, but also increases the weight of the module due to the existence of the side walls of the module bracket, thereby increasing the cost. In this way, the welding process is used for the connection between the side wall and the bracket, which increases the stress concentration and cracks caused by the welding seam; the second method is to process the entire aluminum block by milling. Although this can reduce the overall weight of the module and avoid the welding process used for the connection between the side wall of the module and the side wall of the bracket, due to the presence of reinforcing ribs on the bottom surface of the module bracket and the side wall of the module bracket, only Processing by means of integral milling increases the production cycle and production cost.

Utility model content

In view of this, the present utility model aims to provide a module bracket to improve production efficiency, reduce processing cost, and at the same time ensure the impact resistance and drop resistance of the battery pack.

In order to achieve the above object, the technical scheme of the present utility model is achieved in this way:

A module bracket includes a module side wall, a bracket bottom wall and a bracket side wall, the bracket bottom wall is arranged perpendicular to the module side wall, and the bracket side wall is inclined from the outer end of the bracket bottom wall Extending to the side wall of the module, the bottom wall of the bracket, the side wall of the bracket and the side wall of the module are integrally formed.

Further, fastener mounting holes are provided on the bottom wall of the bracket.

Further, a fastener installation through hole corresponding to the fastener installation hole is provided on the side wall of the bracket.

Further, a hoisting structure for hoisting the module support is formed on the side wall of the bracket.

Further, a reinforcement portion is formed at the connection between the bottom wall of the bracket and the side wall of the bracket.

Further, the module bracket is made of aluminum material, the thickness of the bottom wall of the bracket is A, 3mm≤A≤4mm, and the thickness of the side wall of the bracket is B, 3mm≤B≤4mm.

Further, the bottom wall of the bracket, the side wall of the bracket and the side wall of the module are extruded parts.

Compared with the prior art, the battery module of the present invention has the following advantages:

Using the module bracket provided by the present application, the bottom wall of the bracket, the side wall of the bracket and the side wall of the module are integrally formed parts, and the side wall of the bracket extends obliquely from the outer end of the bottom wall of the bracket to the side wall of the module, forming a reinforced part. Therefore, the module bracket provided by the present application ensures the connection strength of the module bracket and the module side wall bracket while improving the production efficiency. Compared with the traditional milling process with reinforcing ribs, the production efficiency is improved and the processing cost is reduced; compared with the traditional welding connection, the weight of the module bracket is reduced, the battery pack is lightweight, and the welding is avoided. The unreliable connection caused by welding cracks, holes and solid impurities can effectively improve the impact resistance and drop resistance of the battery pack.

A second aspect of the present invention provides a battery module, the battery module includes a module body and the above-mentioned module bracket, and the module side wall is mounted on the side surface of the module body.

A third aspect of the present invention provides a battery pack, which includes the above-mentioned battery module.

Yet another aspect of the present invention provides an automobile, which includes the above-mentioned battery pack.

The advantages of the battery module, the battery pack, the automobile and the above-mentioned module bracket are the same as compared to the prior art, which will not be repeated here.

Other features and advantages of the present invention will be described in detail in the detailed description section that follows.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide further understanding of the present invention, and the schematic embodiments of the present invention and descriptions thereof are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a schematic diagram of a module bracket according to an embodiment of the present invention;

2 is a top view of the module bracket according to the embodiment of the present invention;

FIG. 3 is a side view of a module bracket according to an embodiment of the present invention.

Description of reference numerals

10-Module side wall 31-Bracket bottom wall 32-Bracket side wall 33- Fastener installation hole 34- Fastener installation through hole 35-Hanging hole

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments can be combined with each other unless there is conflict.

The present invention provides a module bracket, which is used for connecting a battery module to a casing of a battery pack. As shown in FIG. 1 , the module bracket includes a module side wall 10 and a bracket bottom wall 31 . and bracket side wall 32, the bracket bottom wall 31 is arranged perpendicular to the module side wall 10, the bracket side wall 32 extends obliquely from the outer end of the bracket bottom wall 31 to the module side wall 10, Wherein, the bottom wall 31 of the bracket, the side wall 32 of the bracket and the side wall 10 of the module are integrally formed.

Using the module bracket provided by the present application, the bracket bottom wall 31 , the bracket side wall 32 and the module side wall 10 are integrally formed, and the bracket side wall 32 extends obliquely from the outer end of the bracket bottom wall 31 to the module side wall 10 , a structure that acts as a reinforcing rib is formed, so the module bracket provided by the present application ensures the connection strength of the module bracket and the module side wall bracket while improving the production efficiency. Compared with the traditional milling process with reinforcing ribs, the production efficiency is improved and the processing cost is reduced; compared with the traditional welding connection, the weight of the module bracket is reduced, the battery pack is lightweight, and the welding is avoided. The unreliable connection caused by welding cracks, holes and solid impurities can effectively improve the impact resistance and drop resistance of the battery pack.

Wherein, the bottom wall 31 of the bracket, the side wall 32 of the bracket and the side wall 10 of the module are extruded parts, for example, the module bracket is an aluminum material part, and the forming process of hot extrusion can be selected. The process has the advantage of better molding. However, the present invention is not limited to this, and other common integral forming methods, such as stamping forming, can also be used.

In addition, when the module bracket is made of aluminum material, the thickness of the bottom wall 31 of the bracket is A, 3mm≤A≤4mm, and the thickness of the side wall 32 of the bracket is B, 3mm≤B≤4mm, preferably the bottom of the bracket The wall thickness is 4mm and the wall thickness of the side walls of the bracket is 3mm.

The side wall 10 of the module is a flat plate, the bottom wall 31 of the bracket is also a flat plate and is arranged perpendicular to the side wall 10 of the module, and the side wall 32 of the bracket is obliquely arranged between the side wall 10 of the module and the bottom wall 31 of the bracket , with reference to the structure shown in Figure 3, the junction of the bracket side wall 32 and the module side wall 10 and the bracket bottom wall 31 adopts the transition form of arc and straight line mixing, to improve the bracket side wall 32 and the module side wall 10 And the connection strength between the bottom wall 31 of the bracket, the middle section of the side wall 32 of the bracket is a straight section, and the angle between the plane where the straight section is located and the side wall 10 of the module is C, then 30°≤C≤ 60°, preferably 45°, the bracket side wall 32 can adopt this angle as the inclination so as to be inclined between the module side wall 10 and the bracket bottom wall 31 .

In addition, a reinforcement portion may be provided at the connection between the support bottom wall 31 and the support side wall 32, for example, a reinforcing rib is provided between the support bottom wall 31 and the support side wall 32, or at the connection between the support bottom wall 31 and the support side wall 32 Form lead angles.

In order to be able to install the module bracket in the battery pack, as shown in FIG. 1 , the bottom wall 31 of the bracket is provided with a fastener mounting hole 33 , through which the fastener mounting hole 33 , the bottom wall 31 of the bracket can pass bolts or The screws are connected in the lower casing of the battery pack, so as to realize the fixing of the battery module.

The fastener should be inserted into the fastener mounting hole 33 from the side of the bottom wall 31 of the bracket facing the side wall 32 of the bracket, so as to be connected to the threaded hole on the lower shell of the battery pack. In order to facilitate the installation of the fastener, such as As shown in FIG. 2 , the side wall 32 of the bracket is provided with fastener installation holes 34 corresponding to the fastener installation holes 33 , and the number of fastener installation holes 34 corresponds to the fastener installation holes 33 . The fasteners can pass through the fastener installation holes 34 and the fastener installation holes 33 in sequence and finally be screwed into the threaded holes on the lower case of the battery pack, wherein the fastener installation holes 34 are formed in the The diameter of the inclined bracket side wall 32 is larger than that of the fastener mounting through hole 34, so that the fastener can pass through.

In addition, in order to facilitate the extrusion molding process of the module bracket, a hoisting structure is provided on the side wall 32 of the bracket to facilitate the production by hoisting during the production of the module bracket. As shown in FIG. 1 and FIG. 2 , the hoisting structure can be The hoisting hole 35 formed on the side wall 32 of the bracket, the hoisting hole 35 is first processed during the hot extrusion process, and the module bracket is hoisted through the hoisting hole, so as to process other structures. The structure can further reduce the weight of the module bracket, which is beneficial to the lightweight of the battery pack.

A second aspect of the present application provides a battery module, the battery module includes a module body and the above-mentioned module bracket, wherein the module side wall 10 can be connected with the module body by means of screw connection, etc. The side wall 10 of the group is connected with the cell structure in the main body of the module through adhesive glue.

In another aspect of the present application, a battery pack is provided. The battery pack includes the above-mentioned battery module, and a module bracket of the battery module can be used to form a bolt connection with a lower casing of the battery pack, so that the battery module can be connected by bolts. Installed in the battery pack.

The present application also provides an automobile including the battery pack as described above.

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the within the protection scope of the present invention.

Claims (10)

1. a module bracket, is characterized in that, described module bracket comprises: module side wall (10); a bottom wall (31) of a bracket, the bottom wall (31) of the bracket is arranged perpendicular to the side wall (10) of the module; a bracket side wall (32), the bracket side wall (32) extending obliquely from the outer end of the bracket bottom wall (31) to the module side wall (10); Wherein, the bracket bottom wall (31), the bracket side wall (32) and the module side wall (10) are integrally formed parts. 2 . The module bracket according to claim 1 , wherein a fastener mounting hole ( 33 ) is provided on the bottom wall ( 31 ) of the bracket. 3 . 3. The module bracket according to claim 2, characterized in that, the bracket side wall (32) is provided with a fastener installation hole (34) corresponding to the fastener installation hole (33) ). 4. The module bracket according to claim 1, wherein a hoisting structure for lifting the module bracket is formed on the side wall (32) of the bracket. 5 . The module bracket according to claim 1 , wherein a reinforcement portion is formed at the connection between the bracket bottom wall ( 31 ) and the bracket side wall ( 32 ). 6 . 6. The module bracket according to claim 1, wherein the module bracket is an aluminum material part, and/or; the thickness of the bracket bottom wall (31) is A, 3mm≤A≤4mm, The thickness of the bracket side wall (32) is B, 3mm≤B≤4mm. 7. The module bracket according to any one of claims 1-6, wherein the bracket bottom wall (31), the bracket side wall (32) and the module side wall (10) For extruded parts. 8. A battery module, characterized in that the battery module comprises a module body and the module bracket according to any one of claims 1-7, and the module side wall (10) is mounted on the The side of the mod body. 9 . A battery pack, wherein the battery pack comprises the battery module of claim 8 . 10 . 10. An automobile, characterized in that the automobile comprises the battery pack of claim 9.