CN210821799U

CN210821799U - Lower boundary beam, power battery package and vehicle

Info

Publication number: CN210821799U
Application number: CN201921794681.8U
Authority: CN
Inventors: 罗明明; 陈许超; 李国兵; 周月; 王博文; 樊少泽; 张兴东
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-23
Anticipated expiration: 2029-10-23

Abstract

The utility model relates to a power battery wraps technical field, in particular to lower boundary beam, power battery package and vehicle. The rocker includes body 1 and installed part, the installed part is including installing mainboard 2 of the lateral wall of body 1 in the thickness direction of mainboard 2, mainboard 2 includes solid portion 4, solid portion 4 is provided with the mounting point 3 that is used for with the automobile body assembly. The lower edge beam simplifies the processing technology by arranging the solid part on the main board, and the solid part is provided with the mounting point, so that the bearing capacity of the mounting point is enhanced, the integral mounting strength of the power battery pack fixed by the lower edge beam is improved, the lower edge beam and the vehicle body are assembled more firmly, and the safety performance of the power battery pack is optimized.

Description

Lower boundary beam, power battery package and vehicle

Technical Field

The utility model relates to a power battery wraps technical field, in particular to lower boundary beam, power battery package and vehicle.

Background

With the widespread use of vehicles, people put higher and higher demands on the vehicles. Taking a power battery pack as an example, in order to ensure that the power battery pack can safely cope with various working conditions, the structural strength of the power battery pack needs to be improved. At present, power battery package includes the module and holds and install the casing of module, and wherein, the lower casing in the casing plays the effect of protection module, consequently, the design structure of casing has directly decided the security performance of whole power battery package down.

In the casing down, the lower boundary beam of casing is as connecting the direct part of whole car and power battery package, plays the effect of bearing all weights of power battery package, however, the boundary beam body of the lower boundary beam among the prior art often adopts the cavity structure, and the preparation technology is complicated, and is with high costs, sets up the mounting point of lower boundary beam in the cavity structure department of boundary beam body moreover, has reduced the bearing capacity of lower boundary beam, has weakened the support strength of lower boundary beam, still has stress concentration's problem, and the security performance is low.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a lower boundary beam, power battery package and vehicle to solve among the prior art the limit roof beam body of lower boundary beam because of set up the manufacturing process complicacy that the mounting point leads to, intensity is low, whole security performance subalternation problem at cavity structure department.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a rocker, the rocker includes body and installed part, the installed part is including installing the mainboard of the lateral wall of body in the mainboard thickness direction, the mainboard includes solid portion, solid portion is provided with the mounting point that is used for with the automobile body assembly.

Optionally, the main plate includes a hollow portion for connecting the body and the solid portion, and the hollow portion is provided with a lightening hole extending along a length direction of the main plate.

Optionally, the hollow part is provided with a groove structure extending along the length direction of the main board, and the groove structure is connected with the body at a groove.

Optionally, the thickness of the main plate is set to be gradually thinner as the main plate is far away from the body.

Optionally, the rocker is provided as a single piece.

Optionally, the solid portion includes a convex portion protruding upward, and the convex portion includes a mounting through hole provided in a thickness direction of the main plate to form the mounting point.

Optionally, the solid portion includes a plurality of the mounting points spaced apart along a length of the main plate.

Optionally, the body is provided as a closed-loop frame structure, and the mounting member includes a plurality of main plates arranged at intervals along an extending direction of the frame structure.

Compared with the prior art, the lower beam has the following advantages:

the lower edge beam simplifies the processing technology by arranging the solid part on the main board, and the solid part is provided with the mounting point, so that the bearing capacity of the mounting point is enhanced, the integral mounting strength of the power battery pack fixed by the lower edge beam is improved, the lower edge beam and the vehicle body are assembled more firmly, and the safety performance of the power battery pack is optimized.

Another object of the utility model is to provide a power battery package to solve among the prior art the limit roof beam body of the lower boundary beam of power battery package because of set up the manufacturing process that the mounting point leads to complicated, the intensity is low, whole security performance subalternation problem in cavity structure department.

a power battery pack comprises the lower edge beam.

The advantages of the power battery pack and the lower edge beam are the same compared with the prior art, and the detailed description is omitted.

Another object of the utility model is to provide a vehicle to solve among the prior art limit roof beam body of the lower boundary beam of power battery package because of set up the manufacturing process that the mounting point leads to complicated, the intensity is low, whole security performance subalternation problem in cavity structure department.

a vehicle comprises the power battery pack.

The vehicle and the rocker have the same advantages compared with the prior art, and the detailed description is omitted.

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

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a rocker according to an embodiment of the present invention.

Description of reference numerals:

1. a body; 2. a main board; 3. mounting points; 4. a solid portion; 5. a hollow portion; 6. lightening holes; 7. a groove structure; 8. a raised portion.

Detailed Description

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

In addition, the inner and outer mentioned in the embodiment of the present invention refer to the inner and outer of the outer contour of the power battery pack.

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

The utility model provides a lower boundary beam, as shown in figure 1, lower boundary beam includes body 1 and installed part, the installed part is including installing mainboard 2 of the lateral wall of body 1 in the thickness direction of mainboard 2, mainboard 2 includes solid portion 4, solid portion 4 is provided with the mounting point 3 that is used for with the automobile body assembly.

Through the technical scheme, the utility model provides a lower boundary beam, the lower boundary beam is through setting up the installed part (i.e. the boundary beam body of lower boundary beam), set up solid part 4 on mainboard 2, simplified processing technology, reduced the cost of manufacture, and be provided with mounting point 3 in solid part 4, strengthened the energy density of mounting point 3, avoided the boundary beam body of lower boundary beam to appear the crackle because of the thin wall that the cavity structure formed around the mounting point when the power battery package receives the vibration impact, even cause the mounting point to drop, be favorable to strengthening the bearing capacity of mounting point 3, improved the whole installation intensity of the power battery package that the lower boundary beam is fixed, make the assembly between lower boundary beam and the automobile body more firm, improved whole shock resistance, anti-falling ability and fatigue resistance of power battery package, optimized the side impact ability and the rigidity of power battery package, the driving mileage of the power battery pack is increased, and the safety performance is better.

On the premise of ensuring the bearing capacity of the mounting point 3, in order to reduce the overall weight of the rocker, as shown in fig. 1, the main board 2 includes a hollow part 5 for connecting the main body 1 and the solid part 4, and the hollow part 5 is provided with a lightening hole 6 extending along the length direction of the main board 2, so that the materialization arrangement of the mounting point 3 is ensured, and the light weight of the main board 2 is also realized.

Further, hollow part 5 is provided with the edge groove structure 7 that the length direction of mainboard 2 extends, groove structure 7 in notch department with body 1 connects, further alleviates the whole weight of boundary beam down for groove structure 7 is body 1 is connected respectively at two rows of lateral walls of notch department, is favorable to improving the joint strength between installed part and the body 1, thereby has guaranteed the holistic structural stability of boundary beam.

For rational design mainboard 2, mainboard 2's thickness sets up to along with keeping away from body 1 and attenuate gradually for mainboard 2 is guaranteeing that 3 departments of mounting point carry out under the prerequisite that the entity set up, can also strengthen 2 self structural strength of mainboard furthest, has improved 2's of mainboard load-carrying capacity and the bearing capacity who bears the striking.

To simplify the manufacturing process, the rocker is provided as one piece. When in manufacturing, the lower edge beam without the mounting point is manufactured by extrusion molding, then the mounting point is processed on the main board 2 of the lower edge beam by a milling process, wherein the mounting point 3 is a mounting through hole arranged at the solid part 4 of the main board 2, so that a fastener penetrates through the mounting through hole of the mounting point 3 to be assembled with the vehicle body, compared with the mounting point manufactured by the traditional welding bush, the two subsequent process steps of forming the mounting point by welding the bush and flattening the mounting point by adopting the design mode of integrally extruding and molding the main body (the part without the mounting point) of the main board 2 and the bush are omitted, the manufacturing process is simple, the manufacturing period is obviously shortened, the yield is improved, the cost is reduced, the production efficiency is improved, and the stress concentration phenomenon caused by the fact that the mounting point is not on the same plane due to welding deformation is avoided, the problem of the boundary beam body of boundary beam because of with the bush welding strength not enough fracture when power battery package receives the vibration impact is solved, improved the bearing strength of mounting point 3 department, optimized the security performance of boundary beam down.

Further, solid portion 4 is including the bellying 8 that makes progress, bellying 8 includes the edge the installation through-hole that the thickness direction of mainboard 2 set up is in order to form mounting point 3, avoided the lower boundary beam because of the upper surface of solid portion 4 flushes with mounting point 3 and the water that leads to the vehicle to splash the lower boundary beam when wading into water collects mounting point 3 department and the fastener department of assembling mounting point 3, optimized the waterproof performance of lower boundary beam, reduced the lower boundary beam and received the corruption phenomenon at the mounting point, prolonged the life of lower boundary beam.

As shown in fig. 1, the solid portion 4 includes a plurality of the mounting points 3 spaced apart along the length direction of the main plate 2, which improves the mounting strength between the vehicle body and the rocker.

Further, body 1 sets up to closed annular frame construction, the installed part includes the edge frame construction's extending direction interval sets up a plurality of mainboard 2, simple structure has reduced the material of preparation installed part, the cost is reduced.

The utility model discloses the second aspect provides a power battery package, power battery package includes the lower boundary beam.

Simulation tests of the power battery pack show that when the solid part 4 is adopted for the lower edge beam to be provided with the mounting point 3, the main frequency of the lower shell of the power battery pack reaches 70HZ and can be verified by 50W kilometers in simulation; meanwhile, the side collision simulation result of the whole vehicle is obviously improved, the side of the lower shell of the power battery pack is not deformed, and the intrusion amount is zero.

The utility model discloses the third aspect still provides a vehicle, the vehicle includes the power battery package.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rocker, characterized in that the rocker includes a body (1) and a mounting, the mounting including a main plate (2) mounted at an outer side wall of the body (1), in a thickness direction of the main plate (2), the main plate (2) includes a solid portion (4), the solid portion (4) being provided with a mounting point (3) for assembly with a vehicle body.

2. Rocker according to claim 1, characterised in that the main panel (2) comprises a hollow section (5) for connecting the body (1) and the solid section (4), which hollow section (5) is provided with weight-reducing holes (6) extending in the length direction of the main panel (2).

3. Rocker according to claim 2, characterised in that the hollow part (5) is provided with a groove structure (7) extending in the length direction of the main panel (2), which groove structure (7) is connected to the body (1) at a groove opening.

4. The rocker according to claim 1, characterised in that the thickness of the main panel (2) is arranged to be gradually thinner away from the body (1).

5. A rocker as claimed in any one of claims 1 to 4, wherein the rocker is provided as a single piece.

6. The rocker according to claim 5, characterised in that the solid part (4) comprises an upwardly projecting boss (8), the boss (8) comprising a mounting through-hole provided in the thickness direction of the main plate (2) to form the mounting point (3).

7. Rocker according to claim 1, characterised in that the solid part (4) comprises a plurality of said attachment points (3) spaced apart along the length of the main panel (2).

8. Rocker according to claim 1, characterised in that the body (1) is provided as a closed-loop frame structure, the mounting comprising a number of main panels (2) arranged at intervals in the extension direction of the frame structure.

9. A power battery pack, characterized in that the power battery pack comprises a rocker according to any of claims 1-8.

10. A vehicle characterized in that the vehicle comprises the power battery pack according to claim 9.