CN216833962U - Automobile threshold inner plate assembly and threshold reinforcement thereof - Google Patents

Abstract

The utility model discloses an automobile threshold inner plate assembly and a threshold reinforcement thereof, which comprises the threshold reinforcement, the front end of the threshold inner plate and the threshold inner plate; the threshold reinforcing piece is arranged in the threshold inner plate and forms a cavity structure with the threshold inner plate; the doorsill reinforcing part is a strip-shaped structure with the length equivalent to that of a doorsill of a car body, and the structure of the cross section of the doorsill reinforcing part is similar to a 'n' -shape; the opening direction of the threshold reinforcing piece is opposite to the inner side of the threshold inner plate and is connected with the bottom of the threshold inner plate through two edges, the included angle alpha between the side wall of the threshold reinforcing piece and the edges is 90-100 degrees, and the top of the threshold reinforcing piece is a reinforcing plane parallel to the threshold inner plate. The utility model discloses make the inside cavity of threshold inner panel assembly cut apart into the triplex, more traditional threshold additional strengthening has increased the cavity, arranges through the reinforcement and makes the intensity of threshold inner panel assembly show the promotion, adapts to the demand that present electric motor car promoted to the threshold performance, and this cavity structure resists and absorbs and makes holistic intensity have obvious promotion outward.

Description

Automobile threshold inner plate assembly and threshold reinforcement thereof

Technical Field

The utility model belongs to the automobile parts, concretely relates to automobile threshold inner panel assembly and threshold reinforcement thereof.

Background

With the improvement of living standard of people on the automobiles, the automobile keeping quantity is higher and higher, and the safety problem of the automobiles is increasingly emphasized. Meanwhile, under the large background of 'carbon peak reaching' and 'carbon neutralization', the technical level and the market share of the electric automobile in the years are greatly developed. At present, batteries of electric vehicles on the market are basically arranged below a front floor, and longitudinal beams below the front floor of a traditional automobile are cancelled based on the requirement of battery arrangement, so that the stress path of the whole automobile during collision is more dependent on doorsills on two sides of the whole automobile. The threshold and the reinforcing structure of the traditional fuel-oil vehicle can not meet the requirement of improving the collision performance of the current electric vehicle, namely the whole vehicle or a battery. The threshold reinforcing structure is researched more by those skilled in the art, and the problems of complex structure or high cost mainly exist. For example, CN201520130609.0 discloses an automobile doorsill reinforcing structure and an automobile, wherein the automobile doorsill reinforcing structure arranged on a vehicle body doorsill comprises a doorsill reinforcing plate, a doorsill reinforcing beam and a supporting plate connecting the doorsill reinforcing plate and the doorsill reinforcing beam; the supporting plate is arranged between the doorsill reinforcing plate and the doorsill reinforcing beam to form a cavity structure; the cavity structure is utilized to resist and absorb external force, and the safety of the vehicle body is improved. For another example, CN211809890U discloses a doorsill reinforcing structure for improving the impact resistance of a passenger compartment and a vehicle, wherein the reinforcing member is L-shaped; also, CN208585331U discloses a threshold beam for a vehicle and a vehicle having the threshold beam, wherein the related threshold structure adopts an aluminum alloy threshold, and a stronger structure is formed by multi-cavity separation, which solves the above problems, and becomes a more mainstream solution at present, especially for high-grade electric vehicles. However, the aluminum alloy doorsill has high cost, and the connection mode with the whole vehicle is not consistent with that of the traditional vehicle type, so that a new connection process of a steel-aluminum hybrid vehicle body is needed, and the cost of the whole vehicle and the new connection process are challenged.

SUMMERY OF THE UTILITY MODEL

The aforesaid to prior art exists not enoughly, the utility model aims to provide a reasonable in design, simple structure to the lower automobile threshold inner panel assembly of cost further still relates to a threshold reinforcement.

Realize above-mentioned purpose, the utility model discloses a following technical scheme:

an automobile doorsill inner plate assembly is characterized by comprising a doorsill reinforcing piece, a front end of a doorsill inner plate and a doorsill inner plate; the threshold reinforcing piece, the front end of the threshold inner plate and the threshold inner plate are connected through welding spots; the threshold reinforcing piece is arranged in the threshold inner plate and forms a cavity structure with the threshold inner plate;

the doorsill reinforcing piece is of a long strip-shaped structure with the length equivalent to that of a vehicle body doorsill, and the structure of the cross section in the width direction is similar to a 'Pi' shape; the opening direction of the threshold reinforcing piece is opposite to the inner side of the threshold inner plate and is connected with the bottom of the threshold inner plate through two edges, the included angle alpha between the side wall of the threshold reinforcing piece and the edges is 90-100 degrees, and the top of the threshold reinforcing piece is a reinforcing plane parallel to the threshold inner plate.

Further, the reinforcing plane of the top part is also provided with a groove extending along the length direction.

Furthermore, the top is also provided with a positioning hole and a liquid leakage hole.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. in the threshold inner plate assembly, because the molded surface of the threshold reinforcing piece is simpler, the selection from materials and forming processes is wider, the manufacturing cost is obviously reduced; the problems that the prior art needs larger, thicker and heavier materials or the material grade requirement is higher and the cost is high are solved; the inner cavity of the threshold inner plate assembly is divided into three parts, a cavity is added compared with the traditional threshold reinforcing structure, the strength of the threshold inner plate assembly is obviously improved through the arrangement of the threshold reinforcing part, the requirement of the conventional electric vehicle on the performance improvement of the threshold is met, and the integral strength is obviously improved due to the resistance and absorption of the cavity structure.

2. The utility model discloses an automobile threshold inner panel threshold reinforcement arranges inside automobile threshold inner panel, adopts spot welding welded connection with the automobile threshold inner panel, and door threshold inner panel threshold reinforcement installs on the automobile threshold inner panel as an independent part, breaks current automobile threshold inner panel threshold reinforcement and adopts the flat structure of laminating entirely to strengthen the energy-absorbing effect of automobile threshold inner panel usually, and it is effectual to have the energy-absorbing, and weight is characteristics such as lighter.

3. The utility model discloses with low costs, make processing technology simpler, consequently have great practicality and wide market prospect in electric motor car development. This threshold reinforcement compares with traditional L type threshold reinforcement, forms the cavity with threshold inner panel body part and makes the intensity of threshold inner panel assembly obtain promoting, more can adapt to the demand that present electric motor car promoted threshold performance. Compared with an aluminum alloy doorsill, the structure is simpler, the limit on forming materials is lower, and the forming process and the connection process with other parts of a vehicle body are simpler.

Drawings

Fig. 1 is a schematic view of a conventional fuel rocker reinforcement beam.

FIG. 2 is a structural schematic diagram of an aluminum alloy threshold stiffening beam of an existing new energy vehicle.

Fig. 3 is a schematic view of the inner sill plate assembly of the present invention.

Fig. 4 is a schematic view of the sill reinforcement of the present invention.

Fig. 5 is a sectional view a-a of fig. 4.

In fig. 3, 4 and 5, 1-sill reinforcement, 2-sill inner panel front section, 3-sill inner panel, 11-locating hole, 12-weep hole, 13-edge, 14-side wall, 15-top, 16-groove.

Detailed Description

Referring to fig. 3, an automobile doorsill inner panel assembly includes a doorsill reinforcement 1, a doorsill inner panel front end 2, and a doorsill inner panel 3; the threshold reinforcing part 1, the front end 2 of the threshold inner plate and the threshold inner plate 3 are connected through welding spots; the sill reinforcement 1 is arranged in the sill inner panel 3 and forms a cavity structure with the sill inner panel.

The doorsill reinforcing part 1 is a long strip-shaped structure with the length equivalent to that of a doorsill of a car body, and the structure of the cross section in the width direction is similar to a 'Pi' shape; the opening direction of the threshold reinforcement 1 is opposite to the inner side of the threshold inner plate 3 and is connected with the bottom of the threshold inner plate 3 through two edges 13, the included angle alpha between the side wall 14 of the threshold reinforcement 1 and the edges 13 is 90-100 degrees, and the top 15 is a reinforcing plane parallel to the threshold inner plate 3.

By adopting the threshold reinforcing part of the design, the internal cavity of the threshold inner plate assembly is divided into three parts, and compared with the traditional threshold reinforcing structure, the cavity is added as shown in figure 1, so that the integral strength is obviously improved.

Referring to fig. 4 to 5, the edge 13 of the sill reinforcement 1 of the present invention is connected to the front sill inner panel section 2 and the inner sill panel 3 by solder joints. Considering process forming, the included angle alpha between the edge 13 and the side wall is 90-100 degrees; in order to increase the cavity size in the sill reinforcement as much as possible, α should be as small as possible, preferably between 90 and 100 degrees. To ensure a force path in the Y direction during a side impact of the threshold, the top 15 is designed parallel to the XZ plane. Further, there is a groove 16 extending in the longitudinal direction in the reinforcing plane of the top portion 15, which can effectively improve the strength of the whole sill reinforcing member 1. In addition, in order to ensure the mounting accuracy and the electrophoresis sufficiency, the threshold reinforcement 1 is provided with a positioning hole 11 and a liquid leaking hole 12. Compared with the reinforcing beam structure of the new energy vehicle door sill shown in the figure 2, the inner plate assembly and the reinforcing member of the vehicle door sill have simpler profiles and wider selection of materials and forming processes, so that the manufacturing cost is obviously reduced.

Referring to fig. 5, the utility model also relates to a doorsill reinforcement which is a strip-shaped structure, and the structure of the cross section is similar to a 'ji' shape; two sides of the opening end of the hollow cylindrical shell are provided with edges 13, and an included angle alpha between each edge 13 and the side wall 14 is 90-100 degrees. The top 15 is a reinforced plane; the reinforcing plane of the top portion 15 is also provided with a groove 16 extending in the length direction.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.

Claims (4)

1. An automobile doorsill inner plate assembly is characterized by comprising a doorsill reinforcing piece (1), a doorsill inner plate front end (2) and a doorsill inner plate (3); the doorsill reinforcement (1), the front end (2) of the doorsill inner plate and the doorsill inner plate (3) are connected through welding spots; the threshold reinforcing piece (1) is arranged in the threshold inner plate (3) and forms a cavity structure with the threshold inner plate;

the doorsill reinforcing part (1) is a strip-shaped structure with the length equivalent to that of a doorsill of a car body, and the structure of the cross section of the doorsill reinforcing part is similar to a 'n' -shape; the opening direction of the threshold reinforcement (1) is opposite to the inner side of the threshold inner plate (3) and is connected with the bottom of the threshold inner plate (3) through two edges (13), the included angle alpha between the side wall (14) of the threshold reinforcement (1) and the edge (13) is 90-100 degrees, and the top (15) is a reinforcing plane parallel to the threshold inner plate (3).

2. An automobile rocker inner panel assembly as defined in claim 1, characterised in that the reinforcement plane of the roof portion (15) is further provided with a lengthwise extending groove (16).

3. An automobile rocker inner panel assembly as defined in claim 1, characterised in that the top portion (15) is further provided with locating holes (11) and weep holes (12).

4. A doorsill reinforcement is characterized in that a main body of the doorsill reinforcement is of a strip-shaped structure, and the structure of the cross section of the doorsill reinforcement in the width direction is similar to a 'Pi' -shaped structure; two sides of the opening end of the hollow shaft are provided with edges (13), the included angle alpha between each edge (13) and the side wall (14) is 90-100 degrees, and the top (15) is a reinforcing plane;

the reinforcing plane of the top part (15) is also provided with a groove (16) extending along the length direction.

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