CN221457797U - Front structure of vehicle body and vehicle - Google Patents

Abstract

The utility model provides a vehicle body front structure and a vehicle. The front end of the wheel cover side beam extends to one side in the vehicle and is connected with the top of the cabin longitudinal beam, and the reinforcing structure is provided with a main body connected to one side of the cabin longitudinal beam and a connecting arm connected to the bottom of the wheel cover side beam. The main body extends along the height direction of the cabin longitudinal beam, the connecting arm extends to the rear side of the main body, and the width of the connecting arm gradually decreases along the direction away from the main body. The front structure of the vehicle body of the utility model not only has a larger cabin space, but also can enable the wheel cover side beam and the cabin to mutually decompose the front collision force in the front-rear direction of the whole vehicle, and the whole reinforcing structure is approximately triangular by arranging the reinforcing structure with the main body and the connecting arm with gradually reduced width, so that the rigidity and the collision performance of the front structure of the vehicle body can be further improved.

Description

Front structure of vehicle body and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a vehicle body front structure, and simultaneously relates to a vehicle with the vehicle body front structure.

Background

The front structure of the vehicle body is used as an important part of the vehicle body, and the structure of the front structure has great influence on cabin space, whole vehicle weight, whole vehicle collision rigidity, white vehicle body precision and safety of a cockpit. Reasonable cabin longeron and wheel casing boundary beam assembly connection structure not only can effectively promote cabin space, lighten whole car weight, can improve whole car collision rigidity again. The existing connecting structure between the cabin longitudinal beam and the wheel cover side beam can not enable the cabin longitudinal beam and the wheel cover side beam to be mutually decomposed to generate collision force in the front-rear direction of the vehicle body, so that the rigidity of the front part of the vehicle body is poor, and the collision performance of the whole vehicle is poor. Some of the longitudinal beam extension plates of the structure have poor precision, occupy a large space in the width direction of the vehicle body, have a relatively large overall structure and lead to a relatively small cabin space, although collision force in the front-rear direction of the vehicle body can be effectively decomposed by the wheel cover side beams and the longitudinal beams.

Disclosure of utility model

In view of this, the present utility model aims to propose a vehicle body front structure that has superior rigidity and collision performance, and is capable of having a large cabin space.

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

a vehicle body front structure comprises a cabin longitudinal beam, a wheel cover side beam arranged on one side of the cabin longitudinal beam, which is close to the outside of a vehicle, and a reinforcing structure connected between the cabin longitudinal beam and the wheel cover side beam;

The front end of the wheel cover side beam extends to one side in the vehicle and is connected with the top of the cabin longitudinal beam, and the reinforcing structure is provided with a main body connected to one side of the cabin longitudinal beam and a connecting arm connected to the bottom of the wheel cover side beam;

The main body extends along the height direction of the cabin longitudinal beam, the connecting arms extend towards the rear side of the main body, and the width of the connecting arms gradually decreases along the direction away from the main body.

Further, the main body is rectangular, the connecting arm is arranged at the top of the main body, and the connecting arm is triangular; and/or the main body is provided with a connecting piece extending along the left-right direction of the whole vehicle, and the connecting piece is connected with the bumper.

Further, a vibration reduction tower is arranged between the rear end of the wheel cover side beam and the cabin longitudinal beam;

And a wheel cover reinforcing plate is connected between the vibration reduction tower, the wheel cover side beam and the engine room longitudinal beam.

Further, the reinforcing structure is box-shaped, and a cavity is formed between the reinforcing structure and the cabin longitudinal beam, the wheel cover side beam and the wheel cover reinforcing plate in an enclosing mode.

Further, the reinforcing structure comprises a front reinforcing plate and a rear reinforcing plate which are connected in a buckling way;

the front reinforcing plate and the rear reinforcing plate are both 7-shaped.

Further, the cabin longitudinal beam comprises a longitudinal beam front section and a longitudinal beam rear section arranged at the rear end of the longitudinal beam front section;

The rear section of the longitudinal beam is bent towards one side outside the vehicle, a floor longitudinal beam is arranged on one side, close to the interior of the vehicle, of the rear section of the longitudinal beam, and a torsion box is arranged between the rear section of the longitudinal beam and the floor longitudinal beam.

Further, a front wall reinforcing beam extending along the left-right direction of the whole vehicle is arranged at the front end of the rear section of the longitudinal beam, and a front wall lower section is arranged at the rear end of the front wall reinforcing beam;

The torsion box is connected with the rear section of the longitudinal beam, the front wall reinforcing cross beam and the lower section of the front coaming, and is formed with a cavity in a surrounding mode.

Further, a longitudinal beam reinforcing plate is arranged in the longitudinal beam of the engine room, extends along the length direction of the longitudinal beam of the engine room, and divides the interior of the longitudinal beam of the engine room into a plurality of sub-cavities.

Further, the front anti-collision beam is arranged in front of the cabin longitudinal beam and is connected with the cabin longitudinal beam through a front energy absorption box;

The front energy absorption box is made of aluminum alloy.

Compared with the prior art, the utility model has the following advantages:

According to the vehicle body front part structure, the front ends of the wheel cover side beams are connected with the tops of the cabin longitudinal beams, so that the occupied space in the width direction of the whole vehicle can be reduced, a larger cabin space can be provided, the wheel cover side beams and the cabin can mutually decompose the front-rear collision force of the whole vehicle in the longitudinal direction, and the whole reinforcing structure is approximately triangular by arranging the reinforcing structure with the main body and the connecting arms with gradually reduced widths, so that the rigidity and the collision performance of the vehicle body front part structure can be further improved.

In addition, through be equipped with the connecting piece that links to each other with the bumper in the main part, can pass through the connecting piece and transmit the side and bump the power, the additional strengthening of being convenient for absorbs the side and bumps the power, is favorable to guaranteeing the security performance of cabin. The wheel cover reinforcing plate is connected among the vibration reduction tower, the wheel cover side beam and the engine room longitudinal beam, so that the rigidity of the front structure of the automobile body can be improved, and the collision performance can be improved. The reinforcing structure is arranged in a box shape, and a cavity is formed between the reinforcing structure and the longitudinal beam of the engine room, the rim beam of the wheel cover and the reinforcing plate of the wheel cover in a surrounding mode, so that the reinforcing structure can absorb side collision force well, and safety of the engine room is guaranteed.

Secondly, the reinforcing structure comprises a front reinforcing plate and a rear reinforcing plate which are connected through buckling, and the structure is simple and convenient to design and implement. Through being equipped with torsion box between longeron rear segment and floor longeron, the accessible torsion box further absorbs the frontal collision impact, is favorable to improving the security performance of cabin. The torsion box is connected with the rear section of the longitudinal beam, the front wall reinforcing cross beam and the lower section of the front wall plate, and the cavity is formed in the surrounding shape, so that the energy absorption effect can be further improved.

In addition, by providing the side member reinforcing plate in the cabin side member, the structural strength of the cabin side member can be improved, and the decomposing collision force can be transmitted rearward well. The front energy-absorbing box is made of aluminum alloy, so that the front energy-absorbing box has a good crumple energy-absorbing effect.

Another object of the present utility model is to propose a vehicle in which the vehicle body front structure as described above is provided.

The vehicle of the utility model has the same beneficial effects as the front structure of the vehicle body compared with the prior art, and is not repeated here.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

Fig. 1 is a partial schematic structural view of a vehicle body front structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a portion of the structure shown in FIG. 1;

FIG. 3 is a bottom view of the structure of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 5 is a schematic structural view of a reinforcing structure according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a reinforcing structure according to an embodiment of the present utility model;

fig. 7 is a schematic structural view of a stringer stiffener according to an embodiment of the present utility model.

Reference numerals illustrate:

1. Cabin stringers; 2. wheel cover side beams; 3. a vibration damping tower; 4. a reinforcing structure; 5. a connecting piece; 6. a dash panel lower section; 7. a torsion box; 8. floor stringers; 9. a stringer stiffener; 10. a front reinforcement beam;

101. a longitudinal beam front section; 102. the rear section of the longitudinal beam;

401. a main body; 402. a connecting arm; 4a, a front reinforcing plate; 4b, a rear reinforcing plate.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, the terms "upper, lower, left, right, front, and rear" used in the present embodiment are defined with reference to the up-down direction, the left-right direction, and the front-rear direction of the automobile. The vertical direction of the vehicle, i.e., the height direction of the vehicle (Z direction), the front-rear direction of the vehicle, i.e., the longitudinal direction of the vehicle (X direction), and the lateral direction of the vehicle, i.e., the width direction of the vehicle (Y direction). In addition, the terms "first," "second," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The present embodiment relates to a vehicle body front structure including a cabin side member 1, a wheel house side member 2 provided on a side of the cabin side member 1 near the outside of the vehicle, and a reinforcing structure 4 connected between the cabin side member 1 and the wheel house side member 2. The front end of the wheel house side beam 2 extends toward the vehicle interior and is connected to the top of the cabin side beam 1, and the reinforcing structure 4 has a main body 401 connected to the cabin side beam 1 side, and a connecting arm 402 connected to the bottom of the wheel house side beam 2. While the main body 401 extends in the height direction of the cabin longitudinal beam 1, the connecting arm 402 extends to the rear side of the main body 401, and the width of the connecting arm 402 gradually decreases in the direction away from the main body 401.

In the vehicle body front structure of the present embodiment, the front end of the wheel house side frame 2 is connected to the top of the cabin longitudinal beam 1, so that not only the space occupied in the width direction of the entire vehicle can be reduced, but also the front collision force in the front-rear direction of the entire vehicle can be mutually decomposed by the wheel house side frame 2 and the cabin longitudinal direction, and the rigidity and the collision performance of the vehicle body front structure can be further improved by providing the reinforcing structure 4 having the main body 401 and the connecting arm 402 having a gradually decreasing width, so that the reinforcing structure 4 is substantially triangular as a whole.

Based on the above general description, an exemplary structure of the vehicle body front structure of the present embodiment is shown with reference to fig. 1 to 4, in which only a left-side partial structure is illustrated for the convenience of description of the present embodiment based on the vehicle body being generally a bilaterally symmetrical structure. Also, as shown in fig. 1, the wheel house side beam 2 is in an arc shape protruding to the vehicle exterior side in the vehicle left-right direction, and in an arc shape protruding upward in the vehicle up-down direction. In order to improve the structural strength of the wheel house side beam 2, the wheel house side beam 2 of the present embodiment includes, as a preferred embodiment, an upper side plate and a lower side plate which are fastened to each other up and down, and a cavity extending in the front-rear direction of the whole vehicle is formed around the upper side plate and the lower side plate therebetween, so that the collision force in the front-rear direction can be absorbed better.

Further, as shown in fig. 1, a damper tower 3 is provided between the rear end of the wheel house side beam 2 and the cabin side beam 1, and a wheel house reinforcing plate is connected between the damper tower 3, the wheel house side beam 2, and the cabin side beam 1. Since the damper tower 3 is provided at the rear end of the wheel house side sill 2, a notch is formed in the front portion of the wheel house side sill 2, between the nacelle side sill 1 and the damper tower 3, and the wheel house reinforcing plate of the present embodiment is blocked in the notch as a preferable embodiment. Wherein, the wheel casing reinforcing plate can be designed into one or a plurality of spliced together according to the design requirement. In addition, the specific structure of the vibration damping tower 3 is just enough to refer to the prior art, and will not be described herein. In the embodiment, the rigidity of the front structure of the vehicle body can be improved by arranging the wheel cover reinforcing plate, so that the collision performance can be improved.

As a further embodiment, as shown in fig. 1 and 2, the main body 401 is rectangular, the connection arm 402 is provided at the top of the main body 401, and the connection arm 402 is triangular. In addition, in order to improve the use effect, the reinforcing structure 4 is box-shaped, and cavities are formed between the reinforcing structure 4 and the cabin longitudinal beam 1, the wheel cover side beam 2 and the wheel cover reinforcing plate in a surrounding manner. By the arrangement, the reinforcing structure 4 can absorb side impact force well, and safety of the engine room is guaranteed.

In addition, as shown in fig. 5 and 6, as a preferred embodiment, the reinforcing structure 4 of the present embodiment includes the front reinforcing plate 4a and the rear reinforcing plate 4b that are fastened together, so that the force can be decomposed and transferred more uniformly and effectively, and the overall structure is simple and the strength is higher. Specifically, the front reinforcing plate 4a and the rear reinforcing plate 4b each have a 7 shape. In addition, in order to facilitate the connection of the reinforcing structure 4 to the cabin longitudinal beam 1 and the wheel cover side beam 2, the edges of the front reinforcing plate 4a and the rear reinforcing plate 4b are provided with flanges, and are connected to the cabin longitudinal beam 1 and the wheel cover side beam 2 through flanges.

In this example, as shown in fig. 4, as a further embodiment, a connecting member 5 extending in the left-right direction of the entire vehicle is provided on a main body 401, and the connecting member 5 is connected to a bumper. Through setting up the connecting piece 5 that links to each other with the bumper, can pass through connecting piece 5 transmission side and bump the power, be convenient for reinforcing structure 4 absorbs the side and bump the power, be favorable to guaranteeing the security performance of cabin. Meanwhile, the cavity formed between the reinforcing structure 4 and the cabin longitudinal beam 1, the wheel cover side beam 2 and the wheel cover reinforcing plate can be utilized, the absorption effect of opposite side collision force is improved, the cabin longitudinal beam 1 can be protected from being damaged, and the safety of parts in the cabin is further ensured. For convenience in processing and manufacturing, the connecting piece 5 is a connecting plate with a U-shaped cross section as a preferred embodiment.

Here, in the preferred embodiment, the main body 401 is rectangular, the connecting arm 402 is triangular, and the connector 5 is provided at the same time. Of course, the connector 5 may be omitted, or the body 401 may be omitted from being rectangular, and the connecting arm 402 may be omitted from being triangular, depending on design requirements.

Further, as shown in fig. 3, the cabin stringer 1 of the present embodiment specifically includes a stringer front section 101, and a stringer rear section 102 provided at the rear end of the stringer front section 101. Wherein the rear girder section 102 is bent to the outside of the vehicle, and the floor girder 8 is provided at the side of the rear girder section 102 near the inside of the vehicle. Further, as a further embodiment, a torsion box 7 is provided between the side member rear section 102 and the floor side member 8. Therefore, the torsion box 7 can further absorb the frontal collision force, and the safety performance of the cabin is improved.

With continued reference to fig. 3, as a further embodiment, the front end of the side member rear section 102 is provided with a front wall reinforcement cross member 10 extending in the vehicle left-right direction, and the rear end of the front wall reinforcement cross member 10 is provided with a dash lower section 6. The torsion box 7 is connected to the side member rear section 102, the front wall reinforcing cross member 10, and the dash lower section 6, and is configured with a cavity. The design can utilize the cavity structure to further improve the energy absorption effect. Among them, as a preferred embodiment, as shown in fig. 3, the torsion box 7 is generally triangular in shape to improve rigidity and collision performance of the vehicle body front structure by taking advantage of the triangular shape having good stability.

In order to further improve the strength and rigidity of the vehicle body front structure, a longitudinal beam reinforcing plate 9 is provided in the cabin longitudinal beam 1, and the longitudinal beam reinforcing plate 9 extends in the longitudinal direction of the cabin longitudinal beam 1 and divides the cabin longitudinal beam 1 into a plurality of sub-cavities. As a specific example, a stringer stiffener 9 is provided in the cabin stringer 1, which stringer stiffener 9 divides the cabin stringer 1 into two partial chambers, as shown in fig. 4. Also, to further improve the use effect, as shown in fig. 7, the side member reinforcing plate 9 is bent to have a thicker structural strength, so that the structural strength and rigidity of the cabin side member 1 can be improved, further improving the collision performance. It is of course also possible to design a plurality of stringer stiffeners 9 according to design requirements and to divide the cabin stringer 1 into a plurality of sub-cavities.

In addition, the side body structure of the present embodiment further includes a front impact beam (not shown in the drawing) disposed in front of the cabin longitudinal beam 1, and the front impact beam is connected to the cabin longitudinal beam 1 through a front crash box, and the front crash box is made of an aluminum alloy, so as to have a better crumple energy absorbing effect. In this embodiment, through setting up the front energy-absorbing box, can make the front collision force absorb step by step through twice decomposition three times, can very big improvement whole car's collision performance, improve whole car's security.

First, the front energy-absorbing box realizes primary energy absorption, and then the wheel cover side beam 2 and the longitudinal beam front section 101 decompose the force transmitted by the front energy-absorbing box and perform secondary energy absorption. Finally, the forces transmitted by the longitudinal beam rear section 102, the torsion box 7 and the floor longitudinal beam 8 are decomposed again by the longitudinal beam front section 101, and three-level energy absorption is performed. In addition, in the concrete implementation, in order to obtain a better use effect, the tensile strength of the component on the transmission path is gradually increased.

For example, the trailing stringer section 102 and the torsion box 7 are made of hot formed steel having a relatively high tensile strength, and the leading stringer section 101 is made of high strength steel having a lower tensile strength than the trailing stringer section 102 and the torsion box 7. And the wheel cover side beam 2 and the reinforcing structure 4 are made of high-strength steel with tensile strength smaller than that of the front section 101 of the longitudinal beam. Therefore, the collision energy absorption strength is gradually increased along with the gradual increase of the strength of the workpiece, and the collision performance of the whole vehicle can be greatly improved.

According to the front structure of the vehicle body, through the adoption of the structure, the structure is simple, the space occupied by the whole vehicle in the width direction is small, the cabin space can be increased, the weight of the whole vehicle is reduced, and the precision of the white vehicle body is improved. Meanwhile, the front collision force and the side collision force can be well absorbed, the collision performance of the whole vehicle can be greatly improved, and the safety of the whole vehicle is improved

Further, the present embodiment relates to a vehicle in which the vehicle body front structure as described above is provided.

The vehicle of the embodiment has all the beneficial effects of the front structure of the vehicle body, and will not be described herein.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A vehicle body front structure, characterized in that:

Comprises a cabin longitudinal beam (1), a wheel cover side beam (2) arranged on one side of the cabin longitudinal beam (1) close to the outside of the vehicle, and a reinforcing structure (4) connected between the cabin longitudinal beam (1) and the wheel cover side beam (2);

The front end of the wheel cover side beam (2) extends to one side in a vehicle and is connected with the top of the cabin longitudinal beam (1), and the reinforcing structure (4) is provided with a main body (401) connected to one side of the cabin longitudinal beam (1) and a connecting arm (402) connected to the bottom of the wheel cover side beam (2);

The main body (401) extends along the height direction of the cabin longitudinal beam (1), the connecting arm (402) extends towards the rear side of the main body (401), and the width of the connecting arm (402) gradually decreases along the direction away from the main body (401).

2. The vehicle body front structure according to claim 1, characterized in that:

The main body (401) is rectangular, the connecting arm (402) is arranged at the top of the main body (401), and the connecting arm (402) is triangular; and/or the number of the groups of groups,

The connecting piece (5) extending along the left-right direction of the whole vehicle is arranged on the main body (401), and the connecting piece (5) is connected with a bumper.

3. The vehicle body front structure according to claim 1, characterized in that:

a vibration damping tower (3) is arranged between the rear end of the wheel cover side beam (2) and the engine room longitudinal beam (1);

And a wheel cover reinforcing plate is connected between the vibration reduction tower (3) and the wheel cover side beam (2) and the engine room longitudinal beam (1).

4. A vehicle body front structure according to claim 3, characterized in that:

The reinforcing structure (4) is box-shaped, and a cavity is formed between the reinforcing structure (4) and the cabin longitudinal beam (1), the wheel cover side beam (2) and the wheel cover reinforcing plate in an enclosing mode.

5. The vehicle body front structure according to claim 4, characterized in that:

The reinforcing structure (4) comprises a front reinforcing plate (4 a) and a rear reinforcing plate (4 b) which are connected in a buckled manner;

The front reinforcing plate (4 a) and the rear reinforcing plate (4 b) are both 7-shaped.

6. The vehicle body front structure according to claim 1, characterized in that:

The cabin longitudinal beam (1) comprises a longitudinal beam front section (101) and a longitudinal beam rear section (102) arranged at the rear end of the longitudinal beam front section (101);

The longitudinal beam rear section (102) is bent towards the outer side of the vehicle, a floor longitudinal beam (8) is arranged on one side, close to the inner side of the vehicle, of the longitudinal beam rear section (102), and a torsion box (7) is arranged between the longitudinal beam rear section (102) and the floor longitudinal beam (8).

7. The vehicle body front structure according to claim 6, characterized in that:

The front end of the rear section (102) of the longitudinal beam is provided with a front wall reinforcing beam (10) extending along the left-right direction of the whole vehicle, and the rear end of the front wall reinforcing beam (10) is provided with a front wall plate lower section (6);

The torsion box (7) is connected with the longitudinal beam rear section (102), the front wall reinforcing cross beam (10) and the front wall plate lower section (6), and is formed with a cavity in a surrounding mode.

8. The vehicle body front structure according to claim 1, characterized in that:

The cabin longitudinal beam (1) is internally provided with a longitudinal beam reinforcing plate (9), and the longitudinal beam reinforcing plate (9) extends along the length direction of the cabin longitudinal beam (1) and divides the cabin longitudinal beam (1) into a plurality of sub-cavities.

9. The vehicle body front structure according to any one of claims 1 to 8, characterized in that:

The front anti-collision beam is arranged in front of the cabin longitudinal beam (1) and is connected with the cabin longitudinal beam (1) through a front energy absorption box;

The front energy absorption box is made of aluminum alloy.

10. A vehicle, characterized in that:

The vehicle is provided with the vehicle body front structure according to any one of claims 1 to 9.