CN111891228A

CN111891228A - Threshold assembly for vehicle and vehicle with threshold assembly

Info

Publication number: CN111891228A
Application number: CN202010773580.3A
Authority: CN
Inventors: 王李华; 卢嘉; 毛卫忠; 李国富; 牛胜福
Original assignee: Shanghai Yuancheng Automobile Technology Co Ltd
Current assignee: Shanghai Yuancheng Automobile Technology Co Ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2020-11-06

Abstract

The invention relates to the field of new energy automobiles, and discloses a threshold assembly for a vehicle and the vehicle with the threshold assembly. The threshold assembly comprises an outer threshold and an inner threshold which are connected, and an accommodating cavity is formed between the outer threshold and the inner threshold; the rolling steel member is arranged in the accommodating cavity and connected to the inner side of the outer doorsill, and is formed by using a rolling die of a front bumper of the vehicle; the reinforcing member is arranged in the accommodating cavity and connected between the inner doorsill and the rolled steel member, and the plurality of reinforcing members are arranged at intervals along the extending direction of the accommodating cavity. The vehicle comprises the threshold assembly and a floor provided with a power battery pack, and the threshold assembly is connected with the floor. According to the invention, the strength, the rigidity, the bending strength and the anti-torsion strength of the threshold assembly are improved through the combination of the rolled steel member and the reinforcing member, the lateral collision energy can be effectively absorbed, the safety of the power battery pack and the whole vehicle is improved, the rolled steel member is formed by using the rolling die of the front bumper of the vehicle, the forming die of the rolled steel member is not required to be additionally added, and the forming process cost is low.

Description

Threshold assembly for vehicle and vehicle with threshold assembly

Technical Field

The invention relates to the field of new energy automobiles, in particular to a threshold assembly for a vehicle and the vehicle with the threshold assembly.

Background

In an electric automobile, a threshold assembly with very good rigidity is required to guarantee the safety and reliability of a power battery pack. When the automobile is laterally collided, the threshold assembly laterally protects the power battery pack, and the safety of the power battery pack and passengers is guaranteed. It is common practice to provide the rigidity of the rocker assembly by providing a unitary extruded aluminum member within the cavity formed by the inner and outer rockers.

The extruded aluminum component and the inner and outer doorsills made of steel cannot be connected by adopting a common welding process, a hot-melting self-tapping riveting process with high cost is required for connection, a plurality of supports are required to be designed at the connecting part in a matching mode, the structure is complex, and the cost of raw materials and the process is high. Meanwhile, in order to ensure the rigidity of the threshold assembly, the extruded aluminum member needs to be filled in the whole cavity formed by the inner and outer thresholds. If the structure is not changed, the material of the component is replaced by steel from aluminum alloy, so that the connection process of the component and the inner and outer doorsills can be improved, but the weight of the steel component is much heavier than that of the aluminum alloy component, so that the total weight of a white vehicle body is increased, the energy consumption is increased, and the cruising ability is reduced.

Disclosure of Invention

One object of the present invention is to provide a threshold assembly for a vehicle, which has high strength and rigidity, and can effectively protect a battery pack when a vehicle is subjected to a side impact, thereby improving safety of a power battery pack and the entire vehicle.

Another objective of the present invention is to provide a vehicle, which includes the above mentioned threshold assembly, and can effectively protect the battery pack when the vehicle is in side impact, so as to improve the safety of the power battery pack and the entire vehicle.

In order to realize the purpose, the following technical scheme is provided:

in a first aspect, there is provided a rocker assembly for a vehicle, comprising:

the outer threshold and the inner threshold are connected, and an accommodating cavity is formed between the outer threshold and the inner threshold;

the rolling steel component is arranged in the accommodating cavity and connected to the inner side of the outer doorsill, and is formed by using a rolling die of a front bumper of the vehicle;

and the reinforcing piece is arranged in the accommodating cavity and connected between the inner doorsill and the rolled steel member, and the reinforcing piece is arranged at intervals along the extending direction of the accommodating cavity.

As a preferable scheme of the doorsill assembly for the vehicle, the rolled steel member includes an outer plate, an inner plate, an upper plate and a lower plate, the outer plate is connected to the inner side of the outer doorsill, the inner plate is disposed in the inner side of the outer plate, the inner plate is approximately in a shape of 'ji', the upper and lower ends of the inner plate are respectively passed through the upper plate and the lower plate and connected to the outer plate, and two hollow cavities are formed at upper and lower intervals.

As a preferred option for a rocker assembly for a vehicle, the rolled steel component is welded and/or adhesively bonded to the outer rocker.

As a preferable mode of the rocker assembly for a vehicle, the reinforcement is made of steel, and the reinforcement is welded to the inner rocker.

As a preferable mode of the rocker assembly for a vehicle, the reinforcing member and the rolled steel member are bonded by glue.

As an optimal scheme for the threshold assembly of vehicle, the reinforcement includes the reinforcing plate and is the contained angle respectively connect in the front bezel and the back plate at both ends around the reinforcing plate, the reinforcing plate connect in the inboard of interior threshold, the front bezel with the back plate is kept away from the equal shaping of one end of reinforcing plate has the connection turn-ups, connect the turn-ups with roll-in steel member connects.

As a preferable scheme of the rocker assembly for a vehicle, the reinforcement further includes a top plate and a bottom plate respectively connected to upper and lower ends of the reinforcement plate at included angles, the top plate is abutted or welded to an upper wall of the inner rocker, and the bottom plate is abutted or welded to a bottom wall of the inner rocker.

As a preferable mode of the rocker assembly for a vehicle, the reinforcement is a stamped and formed integral self-welded member.

As a preferable mode of the rocker assembly for a vehicle, the reinforcement is provided with a reinforcing rib.

In a second aspect, a vehicle is provided, which includes the above mentioned door sill assembly for a vehicle, and further includes a floor board, on which a power battery pack is mounted, and the door sill assembly is connected with the floor board.

The invention has the beneficial effects that:

in the doorsill assembly for the vehicle and the vehicle with the doorsill assembly, the outer doorsill and the inner doorsill are connected to form the containing cavity extending along the front-back direction of the floor, the rolling steel members and the reinforcing members are arranged in the containing cavity, the rolling steel members are connected with the inner side of the outer doorsill, the reinforcing members are connected between the inner doorsill and the rolling steel members, and the overall strength, the rigidity, the bending strength and the torsion strength of the doorsill assembly are improved through the combination of the rolling steel members and the reinforcing members, so that the capability of the doorsill assembly for absorbing lateral collision energy is improved, the power battery pack is effectively protected, and the safety of the whole vehicle is improved. The rolled steel member is formed by using a rolling die of the front bumper of the vehicle, namely the rolled steel member and the front bumper of the vehicle are identical in structure and size, the forming die of the rolled steel member is not required to be additionally added, and the forming process is low in cost. Meanwhile, compared with the existing extruded aluminum component, the connecting process between the rolled steel component and the outer threshold is simple, a hot-melting self-tapping riveting process with high cost is not needed, and the connecting process is low in cost. A plurality of reinforcements are arranged at intervals along the extending direction of the accommodating cavity, so that the strength and the rigidity of each section of the threshold assembly are basically the same, and meanwhile, the space between every two adjacent reinforcements is convenient for welding the inner threshold and the floor.

Drawings

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

FIG. 1 is a schematic structural view of a rocker assembly according to an embodiment of the invention;

FIG. 2 is a cross-sectional view of a rocker assembly provided in accordance with an embodiment of the invention;

FIG. 3 is an exploded view of a rocker assembly according to an embodiment of the invention;

FIG. 4 is a schematic structural view of a rolled steel member provided in an embodiment of the present invention;

FIG. 5 is a first isometric view of a reinforcement member provided by an embodiment of the present invention;

fig. 6 is a second isometric view of a reinforcement member provided by an embodiment of the present invention.

Reference numerals:

1-an outer threshold; 2-an internal threshold; 3-a containing cavity; 4-rolling the steel member; 5-a reinforcement; 6-lightening holes;

41-outer plate; 42-an inner plate; 43-upper plate; 44-a lower plate; 45-a hollow cavity;

51-a stiffener; 52-front panel; 53-back plate; 54-a top plate; 55-a bottom plate; 56-reinforcing ribs;

523-connecting a flanging; 532-flanging by self-welding.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment provides a threshold assembly for a vehicle, and this threshold assembly is installed in the side on the floor of vehicle, installs power battery package on the floor simultaneously, and this threshold assembly's intensity and rigidity are higher, can fully absorb the collision energy when the vehicle bumps to the side, reduce the transmission of side direction collision power to power battery package, effectively protect power battery package, improve whole car security.

As shown in fig. 1 to 3, the rocker assembly of the present embodiment includes an outer rocker 1, an inner rocker 2, a rolled steel member 4, and a reinforcement 5. The outer threshold 1 is connected with the inner threshold 2, and an accommodating cavity 3 extending along the front-back direction of the floor is formed between the outer threshold and the inner threshold. Roll-in steel member 4 and reinforcement 5 all set up in holding chamber 3, and roll-in steel member 4 is connected with the inboard of outer threshold 1, and reinforcement 5 then is connected between interior threshold 2 and roll-in steel member 4. According to the embodiment, the rolling steel members 4 and the reinforcing members 5 are combined to improve the overall strength, rigidity, bending resistance and torsional strength of the threshold assembly, so that the capability of the threshold assembly for absorbing lateral collision energy is improved, the power battery pack is effectively protected, and the safety of the whole vehicle is improved.

The rolled steel member 4 is formed by using a rolling die of a front bumper of the vehicle, namely the rolled steel member 4 and the front bumper of the vehicle are identical in structure and size, the forming die of the rolled steel member 4 is not required to be additionally added, and the forming process is low in cost. Meanwhile, compared with the existing extruded aluminum component, the connecting process between the rolled steel component 4 and the outer threshold 1 is simple, the hot-melting self-tapping riveting process with high cost is not needed, and the connecting process cost is low. Preferably, the rolled steel member 4 and the outer threshold 1 may be joined by welding and/or by gluing, which is a simple process. The rolled steel member 4 and the outer threshold 1 of the embodiment are connected through welding and adhesive bonding, and the adhesive bonding realizes pre-positioning and then is reliably connected through welding.

Further, the reinforcing parts 5 are arranged in a plurality of numbers, the reinforcing parts 5 are arranged at intervals along the extending direction of the accommodating cavity 3, the strength and the rigidity of each section of the threshold assembly are basically the same, and meanwhile, the space between every two adjacent reinforcing parts 5 is convenient for welding the inner threshold 2 and the floor. Preferably, the reinforcing piece 5 is made of steel, the reinforcing piece 5 is connected with the inner threshold 2 in a welding mode, the connecting process is simple, and the process cost is low. Optionally, the reinforcing member 5 and the rolled steel member 4 are bonded by glue.

Referring to fig. 4, the rolled steel member 4 includes an outer plate 41, an inner plate 42, an upper plate 43, and a lower plate 44. The outer plate 41 is connected to the inner side of the outer doorsill 1, the inner plate 42 is arranged on the inner side of the outer plate 41, the inner plate 42 is approximately in a shape like a Chinese character ji, the upper end and the lower end of the inner plate 42 are respectively connected with the outer plate 41 through the upper plate 43 and the lower plate 44, and two hollow cavities 45 which are arranged at intervals up and down are formed, so that the whole rolling steel member 4 is high in bending resistance and torsion resistance, and the power battery pack is effectively protected. Preferably, the outer panel 41 is prepositioned with the outer rocker 1 by adhesive bonding while being securely connected by welding. Alternatively, the outer panel 41 is spot-welded to the inner rocker 2.

Preferably, the reinforcing part 5 is of a hollow structure, so that the strength and rigidity of the threshold assembly are guaranteed, the excessive weight of the threshold assembly and the whole body-in-white is avoided, the oil consumption is reduced, and the endurance mileage is increased.

Referring to fig. 5 and 6, the reinforcement 5 of this embodiment includes reinforcing plate 51, front plate 52 and back plate 53, and reinforcing plate 51 is connected in the inboard of interior threshold 2, and front plate 52 is the contained angle and connects in the front end of reinforcing plate 51, and back plate 53 is the contained angle and connects in the rear end of reinforcing plate 51, and front plate 52 and the one end that reinforcing plate 51 was kept away from to back plate 53 all are formed with the connection turn-ups 523, connect turn-ups 523 and roll-in steel member 4 and be connected to realize being connected of reinforcing member 5 and interior threshold 2 and roll-in steel member 4. Preferably, the gusset 51 is electrically welded to the inner sill 2 with a weld between two adjacent stiffeners 5. Alternatively, the connecting flange 523 is bonded to the inner plate 42 of the rolled steel member 4 by glue.

Preferably, the reinforcement 5 further comprises a top plate 54 and a bottom plate 55 connected to the reinforcement plate 51. Roof 54 is the contained angle and connects in the upper end of reinforcing plate 51, and bottom plate 55 is the contained angle and connects in the lower extreme of reinforcing plate 51, and roof 54 and the upper wall butt or the welding of interior threshold 2, bottom plate 55 and the diapire butt or the welding of interior threshold 2, and the connecting area of reinforcement 5 and interior threshold 2 is big, joint strength is high, and then improves the intensity and the rigidity of whole threshold assembly.

The reinforcement 5 of this embodiment is stamping forming's integral type from weldment, and bulk strength is high, need not the connecting piece, and manufacturing process is simple, low in manufacturing cost. The reinforcing member 5 is formed by bending a steel plate, the top end and the bottom end of the front plate 52 are respectively bent with self-welding flanges 532, the two self-welding flanges 532 are respectively welded with the top plate 54 and the bottom plate 55, the top end and the bottom end of the rear plate 53 are also respectively bent with self-welding flanges 532, and the two self-welding flanges 532 are respectively welded with the top plate 54 and the bottom plate 55.

Optionally, the reinforcing member 5 is provided with a reinforcing rib 56 to improve the strength and rigidity of the whole reinforcing member 5. In the present embodiment, the ribs 56 are formed on the front plate 52 and the rear plate 53.

Optionally, lightening holes 6 are formed in the reinforcing member 5 and/or the rolled steel member 4, so that the weight of the threshold assembly and the body-in-white is reduced while the structural strength and rigidity are guaranteed, and the energy consumption of the whole vehicle is further reduced. Besides the lightening holes 6, the rolling steel component 4 is also provided with oil leakage holes and welding holes, and the reinforcing component 5 is also provided with welding holes.

During vehicle assembly, outer threshold 1 is as the partly material loading of automobile body side wall, and interior threshold 2 is as the partly material loading on floor, and reinforcement 5 is pre-installed on interior threshold 2 through spot welding, and roll-in steel member 4 is pre-installed on outer threshold 1 through spot welding, with interior threshold 2 and floor welding, the solder joint is located between two adjacent reinforcements 5, later to gluing on roll-in steel member 4 and/or reinforcement 5, makes roll-in steel member 4 and reinforcement 5 bond through gluing, realizes prepositioning, later with outer threshold 1 and interior threshold 2 welding.

The embodiment also provides a vehicle, including foretell threshold assembly, this vehicle is still including the floor of installation power battery package, and the threshold assembly is installed on the floor, and the threshold assembly can effectively protect the battery package when the vehicle takes place the side impact, improves power battery package and whole car security.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A rocker assembly for a vehicle, comprising:

the outer threshold (1) and the inner threshold (2) are connected, and an accommodating cavity (3) is formed between the two thresholds;

a rolled steel member (4) disposed in the accommodation chamber (3) and connected to an inner side of the outer rocker (1), the rolled steel member (4) being formed using a roll mold of a front fender of the vehicle;

and the reinforcing pieces (5) are arranged in the accommodating cavity (3) and connected between the inner doorsill (2) and the rolling steel member (4), and the plurality of reinforcing pieces (5) are arranged at intervals along the extending direction of the accommodating cavity (3).

2. The rocker assembly for vehicles according to claim 1, wherein the rolled steel member (4) includes an outer plate (41), an inner plate (42), an upper plate (43), and a lower plate (44), the outer plate (41) is connected to the inner side of the outer rocker (1), the inner plate (42) is disposed on the inner side of the outer plate (41), the inner plate (42) is approximately in a zigzag shape, and upper and lower ends of the inner plate (42) are connected to the outer plate (41) through the upper plate (43) and the lower plate (44), respectively, and form two hollow cavities (45) disposed at an interval from top to bottom.

3. Sill assembly for a vehicle according to claim 1, characterized in that the rolled steel member (4) is welded and/or glued to the outer sill (1).

4. The rocker assembly for vehicles according to claim 1, characterised in that the reinforcement (5) is made of steel, the reinforcement (5) being welded to the inner rocker (2).

5. The rocker assembly for vehicles according to claim 1 or 4, characterised in that the reinforcement (5) is glued to the rolled steel member (4).

6. The rocker assembly for a vehicle according to claim 1, characterised in that the reinforcement (5) comprises a reinforcement plate (51) and a front plate (52) and a rear plate (53) respectively connected to the front and rear ends of the reinforcement plate (51) at an included angle, the reinforcement plate (51) is connected to the inner side of the inner rocker (2), and the ends of the front plate (52) and the rear plate (53) far away from the reinforcement plate (51) are both formed with a connecting flange (523), and the connecting flange (523) is connected with the rolled steel member (4).

7. The rocker assembly for vehicles according to claim 6, wherein the reinforcement (5) further comprises a top plate (54) and a bottom plate (55) respectively connected to the upper and lower ends of the reinforcement plate (51) at an included angle, the top plate (54) is abutted against or welded to the upper wall of the inner rocker (2), and the bottom plate (55) is abutted against or welded to the bottom wall of the inner rocker (2).

8. The rocker assembly for vehicles according to claim 6 or 7, characterised in that the reinforcement (5) is a stamped and formed one-piece self-welded piece.

9. The rocker assembly for vehicles according to claim 6, characterised in that the reinforcement (5) is provided with a reinforcement (56).

10. A vehicle comprising a rocker assembly for a vehicle as claimed in any one of claims 1 to 9, the vehicle further comprising a floor, the floor having a power cell pack mounted thereon, the rocker assembly being connected to the floor.