CN219237173U - Threshold beam assembly for vehicle and vehicle - Google Patents

Abstract

The application provides a threshold beam assembly and vehicle for vehicle, wherein, threshold beam assembly for vehicle includes first threshold beam, second threshold beam, first stiffening beam and second stiffening beam, and first threshold beam and second threshold beam connect and form the cavity, and first stiffening beam and second stiffening beam all set up in the cavity, and first stiffening beam is spaced apart with the second stiffening beam; both sides limit of first stiffening beam all with first threshold roof beam fixed connection, first stiffening beam shaping has towards the convex first protrusion structure of second stiffening beam, both sides limit of second stiffening beam all with second threshold roof beam fixed connection, the shaping of second stiffening beam has towards the convex second protrusion structure of first stiffening beam, first protrusion structure sets up with the second protrusion structure relatively for realize the interlocking of first stiffening beam and second stiffening beam when first threshold roof beam or second threshold roof beam deformation. The embodiment of the application has the advantages of simpler overall structure and lower manufacturing cost.

Description

Threshold beam assembly for vehicle and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a threshold beam assembly for a vehicle and the vehicle.

Background

Currently, the power battery of an electric vehicle is typically disposed under the floor of the vehicle and is fixedly connected to the rocker beam of the vehicle. When a vehicle collides, the threshold beam of the vehicle needs to have an energy absorption function so as to protect the power battery. At present, a threshold beam of a vehicle generally adopts an integral extruded aluminum threshold beam or steel threshold aluminum-clad extruded stiffening beam structure, and the threshold beam structures are complex and high in manufacturing cost.

Disclosure of Invention

The application provides a threshold roof beam assembly and vehicle for vehicle to solve current threshold roof beam structure and be more complicated, manufacturing cost is higher problem.

According to a first aspect of the present application, there is provided a rocker assembly for a vehicle, including a first rocker beam, a second rocker beam, a first reinforcement beam and a second reinforcement beam, the first rocker beam and the second rocker beam being connected to form a cavity, the first reinforcement beam and the second reinforcement beam being both disposed in the cavity, the first reinforcement beam being spaced apart from the second reinforcement beam;

the utility model discloses a door sill beam, including first stiffening beam, second stiffening beam, first threshold beam, second stiffening beam, first stiffening beam's both sides limit all with first threshold beam fixed connection, first stiffening beam's both sides limit with first stiffening beam fixed connection, first stiffening beam shaping have towards first stiffening beam convex second protruding structure, first protruding structure with second protruding structure sets up relatively, is used for first threshold beam or realize when second threshold beam deformation first stiffening beam with the interlocking of second stiffening beam.

According to a second aspect of the present application there is provided a vehicle comprising a rocker assembly according to the first aspect.

In this embodiment, threshold roof beam assembly for vehicle includes first threshold roof beam, second threshold roof beam, first stiffening beam and second stiffening beam, and first stiffening beam and second stiffening beam interval set up, and first stiffening beam shaping has towards the convex first protruding structure of second stiffening beam, and second stiffening beam shaping has towards the convex second protruding structure of first stiffening beam, and first protruding structure sets up with the second protruding structure is relative, and it is visible that overall structure of this application embodiment is simpler, manufacturing cost is lower. In this embodiment, on the one hand, through setting up first stiffening beam and second stiffening beam interval, like this, when first threshold roof beam receives external force striking and takes place deformation, first stiffening beam can dodge towards the direction of second stiffening beam along with the deformation of first threshold roof beam to can realize the energy-absorbing. On the other hand, through first stiffening beam and second stiffening beam shaping first protruding structure and second protruding structure respectively, and first protruding structure sets up with the second protruding structure relatively, like this, when first threshold roof beam or second threshold roof beam deformation, the second protruding structure can block first protruding structure, can realize the interlocking of first stiffening beam and second stiffening beam to can effectively prevent threshold roof beam assembly and take place more serious deformation, thereby can carry out effective protection to the battery package.

It should be understood that the description of this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.

Drawings

The drawings are for better understanding of the present solution and do not constitute a limitation of the present application. Wherein:

FIG. 1 is a schematic view of a prior art assembly of a threshold beam with a power cell;

FIG. 2 is a schematic view of an integrally extruded aluminum sill beam of the prior art;

FIG. 3 is a schematic view of a prior art ladle aluminum threshold beam;

FIG. 4 is an exploded view of a rocker assembly according to an embodiment of the present disclosure;

fig. 5 is a cross-sectional view taken along the direction A-A of fig. 4.

Reference numerals:

01. a threshold beam; 02. a floor; 03. a power battery;

1. a first threshold beam; 11. a fifth side; 12. a sixth side; 2. a second threshold beam; 21. a seventh side; 22. an eighth side; 3. a first reinforcing beam; 31. a first side; 32. a second side; 33. a first projection structure; 331. a first step surface; 332. a second step surface; 333. a second engagement surface; 4. a second reinforcing beam; 41. a third side; 42. a fourth side; 43. a second projection structure; 431. a third step surface; 432. a fourth step surface; 433. a first engagement surface.

Detailed Description

Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

As shown in fig. 1, currently, a power battery 03 of an electric vehicle is generally disposed under a floor 02 of the vehicle and is fixedly connected to a rocker 01 of the vehicle. When the vehicle collides, the rocker 01 of the vehicle needs to have an energy absorbing function to protect the power battery 03.

Currently, a sill beam of a vehicle generally adopts a structure of an integral extruded aluminum sill beam or a steel sill aluminum extruded reinforcement beam (i.e., a ladle aluminum sill beam), wherein fig. 2 shows the structure of the integral extruded aluminum sill beam and fig. 3 shows the structure of the ladle aluminum sill beam. The threshold beam structures and the manufacturing processes are complex, and the manufacturing cost is high, and the threshold beam structures and the manufacturing processes are mainly characterized in the following aspects:

firstly, because of higher aluminum alloy cost, the manufacturing cost of the integrated aluminum extrusion threshold beam and the steel ladle aluminum threshold beam is obviously increased compared with that of the traditional steel threshold beam;

secondly, the connection of the integral aluminum extrusion threshold beam or the steel ladle aluminum threshold beam and the vehicle body is required to be connected through hot melt self-tapping (Flow Drill Screws, FDS, also called as stream drilling screw) and other processes, so that the equipment investment is high, and the connection cost is high;

thirdly, for long parts such as threshold beams or stiffening beams, bending torsion is easy to occur to the aluminum extrusion parts, so that straightness and flatness of the parts are poor, matching of the aluminum extrusion parts and other parts is difficult, and the risk of poor sealing is increased.

In view of this, the embodiments of the present application provide a rocker assembly for a vehicle and a vehicle, and the embodiments of the present application are described below with reference to the accompanying drawings.

As shown in fig. 4 to 5, the rocker assembly for a vehicle includes a first rocker 1, a second rocker 2, a first reinforcement 3 and a second reinforcement 4, the first and second rocker 1, 2 are connected to form a cavity, the first and second reinforcement 3, 4 are both disposed in the cavity, and the first reinforcement 3 is spaced from the second reinforcement 4.

Both sides (first side 31 and second side 32) of the first reinforcement beam 3 are fixedly connected with the first sill beam 1, the first reinforcement beam 3 is formed with a first projection structure 33 projecting toward the second reinforcement beam 4, both sides (third side 41 and fourth side 42) of the second reinforcement beam 4 are fixedly connected with the second sill beam 2, the second reinforcement beam 4 is formed with a second projection structure 43 projecting toward the first reinforcement beam 3, and the first projection structure 33 is disposed opposite to the second projection structure 43 for realizing interlocking of the first reinforcement beam 3 and the second reinforcement beam 4 when the first sill beam 1 or the second sill beam 2 is deformed.

After the first threshold beam 1 and the second threshold beam 2 are connected, the two beams enclose a chamber. One of the first and second sill beams 1 and 2 is an outer sill beam and the other is an inner sill beam. For ease of understanding, the present embodiment will be described by taking the first rocker 1 as an outer rocker and the second rocker 2 as an inner rocker as an example.

The first reinforcement beam 3 may be referred to as an outer sill reinforcement beam and the second reinforcement beam 4 may be referred to as an inner sill reinforcement beam. In the installed orientation of the rocker assembly, the first projection 33 projects toward the inside of the rocker assembly and the second projection 43 projects toward the outside of the rocker assembly.

The first reinforcement beam 3 is spaced from the second reinforcement beam 4 with a free space therebetween, so that when the first threshold beam 1 is deformed by external impact, the first reinforcement beam 3 can avoid in the direction of the second reinforcement beam 4, and in this process, impact energy is greatly absorbed by the first threshold beam 1 to be reduced.

The first reinforcement beam 3 and the second reinforcement beam 4 are respectively formed with the first protrusion structure 33 and the second protrusion structure 43, and the first protrusion structure 33 and the second protrusion structure 43 are disposed opposite to each other, so that when the first sill beam 1 is deformed, the first reinforcement beam 3 can be extruded to an area where the first protrusion structure 33 reaches the second protrusion structure 43, at this time, the second protrusion structure 43 can block the first protrusion structure 33 to prevent the same from being extruded, so that the first reinforcement beam 3 and the second reinforcement beam 4 are interlocked, and the remaining energy can be absorbed by the first reinforcement beam 3 and the second reinforcement beam 4, which can prevent the sill beam assembly from being deformed more severely, thereby effectively protecting the battery pack.

In this embodiment, only need set up first stiffening beam 3 and second stiffening beam 4 in the cavity that first threshold beam 1 encloses with second threshold beam 2 to close the formation, first stiffening beam 3 and second stiffening beam 4 only need the shaping respectively have protruding structure, and its overall structure is all simpler.

In the present embodiment, the deformation space is provided by the interval arrangement of the first reinforcement beam 3 and the second reinforcement beam 4, and the degree of deformation is limited by the first projection structure 33 and the second projection structure 43. Therefore, the embodiment of the application can achieve the effect of the integral aluminum extrusion threshold beam or the steel ladle aluminum threshold beam through a simple structure. The first threshold beam 1, the second threshold beam 2, the first reinforcement beam 3 and the second reinforcement beam 4 can be manufactured from a material with a high strength without using aluminum materials or FDS or the like. Therefore, the embodiments of the present application do not need to be constrained or limited by the manufacturing process and the manufacturing materials, which can simplify the manufacturing process of the threshold beam and reduce the manufacturing cost of the threshold beam.

In some embodiments, the first projecting structure 33 includes a first step surface 331 and a second step surface 332 that face the second reinforcement beam 4, the second step surface 332 projecting opposite the first step surface 331;

the second projection structure 43 includes a third step surface 431 and a fourth step surface 432 facing the first reinforcement beam 3, the third step surface 431 projecting opposite the fourth step surface 432;

the first step surface 331 is disposed opposite the third step surface 431, and the second step surface 332 is disposed opposite the fourth step surface 432.

In this embodiment, the sections of the first reinforcement beam 3 and the second reinforcement beam 4 are in the steps with different protruding degrees, and the steps of the two steps are just opposite, so that when the first reinforcement beam 3 is pressed to be in contact with the second reinforcement beam 4, the first protruding structure 33 and the second protruding structure 43 just form an interlocking structure, and at this time, the first reinforcement beam 3 and the second reinforcement beam 4 form a stable supporting structure, which can prevent the threshold beam assembly from being deformed more seriously.

In some embodiments, the first threshold beam 1 is an outer threshold beam and the second threshold beam 2 is an inner threshold beam;

the first step surface 331 is located above the second step surface 332, and the third step surface 431 is located above the fourth step surface 432.

In this embodiment, the first step surface 331 is located above the second step surface 332 and the third step surface 431 is located above the fourth step surface 432 in the orientation of the rocker assembly in the installed state. That is, the lower portion of the first projection structure 33 projects more than the upper portion, and the upper portion of the second projection structure 43 projects more than the lower portion. Of course, the reverse arrangement is also possible, i.e. the first step surface 331 is located below the second step surface 332 and the third step surface 431 is located below the fourth step surface 432.

In a normal situation, the collision area of the first sill beam 1 is generally located in an upper area, and therefore the upper area of the first sill beam 1 is generally deformed first, which results in the upper portion of the first reinforcement beam 3 being deflected generally downwards, and therefore the first projection structure 33 is arranged to be more convex in the lower portion than in the upper portion, and the second projection structure 43 is arranged to be more convex in the upper portion than in the lower portion, which enables the first projection structure 33 and the second projection structure 43 to form an interlocking structure with a higher degree of fit, which enables the first reinforcement beam 3 and the second reinforcement beam 4 to form a more stable support structure.

In some embodiments, the second step surface 332 is slightly higher than the fourth step surface 432.

In this embodiment, the second step surface 332 is slightly higher than the fourth step surface 432 in the orientation of the rocker assembly in the installed condition. In this way, when the collision area is located in the upper region of the first rocker 1, the upper portion of the first reinforcement beam 3 is deflected downward, and the second step surface 332 is set slightly higher than the fourth step surface 432, so that the downward deflection of the first reinforcement beam 3 can be counteracted, and the second step surface 332 and the fourth step surface 432 can be matched with each other with a higher degree of fit, which is advantageous in forming a more stable support structure for the first reinforcement beam 3 and the second reinforcement beam 4.

In some embodiments, the first step surface 331 is slightly inclined to the second reinforcement beam 4.

In this embodiment, the first step surface 331 is slightly inclined to the second reinforcement beam 4, so that the downward deflection of the first reinforcement beam 3 can be counteracted, and the first step surface 331 and the third step surface 431 can be matched with each other with higher matching degree, which is beneficial for forming a more stable supporting structure of the first reinforcement beam 3 and the second reinforcement beam 4.

In some embodiments, the second projection arrangement 43 further includes a first engagement surface 433 between the third step surface 431 and the fourth step surface 432, the first engagement surface 433 being inclined slightly downward.

More specifically, the angle formed by the third step surface 431 and the first engagement surface 433 (the angle being located on the inner side of the second reinforcement beam 4) is an obtuse angle, and the angle formed by the first engagement surface 433 and the fourth step surface 432 (the angle being located on the outer side of the second reinforcement beam 4) is an obtuse angle.

Correspondingly, the first protrusion 33 further comprises a second engagement surface 333 between the first step surface 331 and the second step surface 332. The second engagement surface 333 may be slightly inclined downward or not, and if the second engagement surface 333 is slightly inclined downward, the second engagement surface 333 may be inclined downward to a smaller extent than the first engagement surface 433.

In this embodiment, the first engagement surface 433 is configured to be slightly inclined downward, which is advantageous in providing a guide surface for the second step surface 332, and in matching the second step surface 332 with the fourth step surface 432 with a higher degree of fit, which is advantageous in forming a more stable support structure for the first reinforcement beam 3 and the second reinforcement beam 4.

In some embodiments, the first threshold beam 1, the second threshold beam 2, the first reinforcement beam 3 and the second reinforcement beam 4 are all steel materials.

As an example, the first rocker beam 1, the second rocker beam 2, the first reinforcement beam 3 and the second reinforcement beam 4 may be manufactured by a roll or a stamping process.

In this embodiment, the first sill beam 1, the second sill beam 2, the first reinforcement beam 3 and the second reinforcement beam 4 are made of steel materials, so that not only can the manufacturing cost of the sill beam assembly be saved, but also the manufacturing process of the sill beam assembly can be simplified, and sufficient structural strength can be ensured.

In some embodiments, both sides (first side 31 and second side 32) of the first reinforcement beam 3 are welded to the first sill beam 1, and both sides (third side 41 and fourth side 42) of the second reinforcement beam 4 are welded to the second sill beam 2.

Accordingly, both side edges (fifth side edge 11 and sixth side edge 12) of the first rocker 1 are welded to both side edges (seventh side edge 21 and eighth side edge 22) of the second rocker 2, respectively.

In this embodiment, since the first rocker beam 1, the second rocker beam 2, the first reinforcement beam 3, and the second reinforcement beam 4 are all made of steel materials, the fixed connection of the respective members can be achieved by welding.

The specific manufacturing process of the threshold beam assembly can be as follows: the two side edges of the first reinforcement beam 3 are welded to the inner side wall of the first threshold beam 1, the two side edges of the second reinforcement beam 4 are welded to the inner side wall of the second threshold beam 2, and then the two side edges of the first threshold beam 1 and the two side edges of the second threshold beam 2 are welded to form a threshold beam assembly respectively. As an example, the welding process may employ a spot welding process.

In some embodiments, the first threshold beam 1 is an outer threshold beam and the second threshold beam 2 is an inner threshold beam;

the strength of the first threshold beam 1 is less than or equal to the strength of the second reinforcement beam 4.

Alternatively, the strength of both the first reinforcement beam 3 and the second reinforcement beam 4 is higher than that of the first threshold beam 1.

Alternatively, the strength of both the first reinforcement beam 3 and the second reinforcement beam 4 is higher than the strength of the first threshold beam 1 and the second threshold beam 2.

As an example, the first reinforcement beam 3 and the second reinforcement beam 4 may employ DP980 high-strength steel having a stock thickness of 1.2 mm.

In the first aspect, the steel reinforcement beam is adopted to replace an aluminum extrusion beam structure, and the reinforcement beam can be directly connected to the inner and outer threshold beams through a welding process, so that the part cost and the connection cost are remarkably reduced. Secondly, the steel stiffening beam is stable in size, the problem that the aluminum extrusion beam is poor in straightness due to bending torsion is avoided, the whole vehicle size is guaranteed, and the manufacturing efficiency is improved. Thirdly, the steel reinforcing beam has good collision performance, and the reinforcing beam can form an interlocking structure in collision, so that good collision performance can be realized.

In sum, this application embodiment replaces integral type extrusion aluminium or ladle aluminium structure through simple interlocking formula stiffening beam, not only has good collision performance, can also reduce manufacturing cost, reduces the manufacturing degree of difficulty of part, reduces the matching degree of difficulty of whole car, promotes manufacturing efficiency.

The embodiment of the application also provides a vehicle, which comprises any one of the threshold beam assembly embodiments.

Any implementation manner of the threshold beam assembly embodiment described above may be applied to the vehicle in the embodiment of the present application, and may achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

The above embodiments do not limit the scope of the application. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims (10)

1. The threshold beam assembly for the vehicle is characterized by comprising a first threshold beam, a second threshold beam, a first reinforcement beam and a second reinforcement beam, wherein the first threshold beam and the second threshold beam are connected to form a cavity, the first reinforcement beam and the second reinforcement beam are arranged in the cavity, and the first reinforcement beam is spaced from the second reinforcement beam;

the utility model discloses a door sill beam, including first stiffening beam, second stiffening beam, first threshold beam, second stiffening beam, first stiffening beam's both sides limit all with first threshold beam fixed connection, first stiffening beam's both sides limit with first stiffening beam fixed connection, first stiffening beam shaping have towards first stiffening beam convex second protruding structure, first protruding structure with second protruding structure sets up relatively, is used for first threshold beam or realize when second threshold beam deformation first stiffening beam with the interlocking of second stiffening beam.

2. The rocker assembly of claim 1 wherein the first projection arrangement includes a first step surface facing the second reinforcement beam and a second step surface projecting opposite the first step surface;

the second protruding structure comprises a third step surface and a fourth step surface which face the first reinforcing beam, and the third step surface protrudes relative to the fourth step surface;

the first step surface is opposite to the third step surface, and the second step surface is opposite to the fourth step surface.

3. The rocker assembly of claim 2 wherein the first rocker beam is an outer rocker beam and the second rocker beam is an inner rocker beam;

the first step surface is located above the second step surface, and the third step surface is located above the fourth step surface.

4. A rocker assembly as claimed in claim 3, wherein the second step surface is slightly higher than the fourth step surface.

5. A rocker assembly as claimed in claim 3, wherein the first step surface is inclined slightly towards the second reinforcing beam.

6. A rocker assembly as claimed in claim 3, wherein the second projection arrangement further comprises a first engagement surface between the third step surface and the fourth step surface, the first engagement surface being inclined slightly downwardly.

7. The rocker assembly of any one of claims 1 to 6 wherein the first, second, first and second reinforcement beams are each a steel material.

8. The rocker assembly of claim 7 wherein both sides of the first reinforcement beam are welded to the first rocker and both sides of the second reinforcement beam are welded to the second rocker.

9. The rocker assembly of claim 7 wherein the first rocker beam is an outer rocker beam and the second rocker beam is an inner rocker beam;

the strength of the first threshold beam is smaller than or equal to that of the second reinforcing beam.

10. A vehicle comprising a rocker assembly as claimed in any one of claims 1 to 9.

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