CN219406622U - Front structure of vehicle body and vehicle with front structure - Google Patents

Abstract

The utility model provides a front structure of a vehicle body and a vehicle with the front structure, and the front structure of the vehicle body comprises front cabin longitudinal beams which are respectively arranged at the left side and the right side, and front anti-collision beam assemblies connected with the front cabin longitudinal beams at the two sides; the front parts of the front cabin longitudinal beams on two sides are bent towards one side outside the vehicle in the left-right direction of the whole vehicle, and the energy absorption boxes in the front anti-collision beam assembly are connected to the bending parts of the front cabin longitudinal beams; the distance between the front ends of the longitudinal beams of the front engine room on the two sides along the left and right directions of the whole vehicle is larger than the distance between the left and right ends of the front anti-collision beam in the front anti-collision beam assembly along the left and right directions of the whole vehicle. According to the front part structure of the vehicle body, the front cabin longitudinal beam participates in the small overlap collision, and has higher participation degree compared with the front anti-collision beam, so that the front cabin longitudinal beam can be utilized to effectively transmit collision force, the safety of the small overlap collision is improved, and the safety quality of the whole vehicle is improved.

Description

Front structure of vehicle body and vehicle with front structure

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 cabin frame is an important component part of a front structure of the vehicle, is an installation foundation of important parts such as an air conditioner compressor and a radiator, and can bear collision force and play an energy absorption role when the vehicle is impacted, so that the front cabin frame structure is optimized to improve collision safety, and is an important link of the design of vehicle safety performance.

The front anti-collision beam assembly, the energy absorption box and the front cabin longitudinal beam are main components for bearing collision force in the front cabin frame. However, in the prior art, when a vehicle collides, collision force is generally borne through the front anti-collision assembly and is directly transmitted to the energy absorption box, and the energy absorption box absorbs energy and is then transmitted to the front cabin longitudinal beam.

Disclosure of Invention

In view of the above, the present utility model aims to provide a front structure of a vehicle body, so as to improve the collision safety of the whole vehicle.

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

a front structure of a vehicle body comprises front cabin longitudinal beams which are respectively arranged at the left side and the right side, and a front anti-collision beam assembly which is connected with the front cabin longitudinal beams at the two sides;

the front parts of the front cabin longitudinal beams at two sides are bent towards one side outside the vehicle in the left-right direction of the whole vehicle, and the energy absorption boxes in the front anti-collision beam assembly are connected to the bending parts of the front cabin longitudinal beams;

the distance between the front ends of the longitudinal beams of the front engine room along the left-right direction of the whole vehicle is larger than the distance between the left ends and the right ends of the front anti-collision beams in the front anti-collision beam assembly along the left-right direction of the whole vehicle.

Further, the space between the bending part of the front cabin longitudinal beam on each side and the wheel package envelope of the front wheels on the same side is more than 10 mm.

Further, the bending part of each front cabin longitudinal beam is connected with a connecting bracket, and the energy-absorbing box is connected with the front cabin longitudinal beam through the connecting bracket.

Further, the device also comprises a front end frame; the front end frame comprises side brackets which are respectively arranged at the left side and the right side, and an upper bracket which is connected between the top ends of the side brackets at the two sides; the side brackets on both sides are connected between the energy absorption boxes and the connecting brackets on the same side.

Further, a lower cross beam is connected between the bottom ends of the side brackets on two sides, and in the whole car height direction, the lower cross beam is lower than the front anti-collision beam.

Further, front auxiliary frame mounting brackets are arranged at the bottoms of the connecting brackets at the two sides, and one side, facing the front of the vehicle, of each front auxiliary frame mounting bracket is connected to the side bracket at the same side.

Further, a supporting beam is connected between the connecting brackets at the two sides.

Further, the cross section of the supporting beam is n-shaped, and/or the connecting brackets at two sides are triangular when seen from the up-down direction of the whole vehicle.

Furthermore, the front anti-collision beam and the energy-absorbing boxes at the two sides are made of extruded aluminum profiles, and/or grooves are formed in the front ends of the energy-absorbing boxes at the two sides, and part of the front anti-collision beam is embedded into the grooves.

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

according to the front structure of the vehicle body, the front part of the front cabin longitudinal beam is outwards bent, the distance between the two ends of the front anti-collision beam is smaller than the distance between the front ends of the front cabin longitudinal beams on the two sides, the front cabin longitudinal beam can participate in small overlapping collision, and compared with the front anti-collision beam, the front cabin longitudinal beam has higher participation degree, so that the front cabin longitudinal beam can be utilized for effectively transmitting collision force, the safety of the small overlapping collision is facilitated, and the safety quality of the whole vehicle is improved.

In addition, the space between the bending part of each side front cabin longitudinal beam and the wheel package envelope of the front wheels on the same side is more than 10mm, so that the front cabin longitudinal beam and the front wheels can be prevented from interfering, and the smoothness of the movement of the front wheels is ensured. Through setting up the linking bridge, can be convenient for the connection between energy-absorbing box and the front engine room longeron to can guarantee the connection reliability. And be connected with the front end frame between energy-absorbing box and the linking bridge, can do benefit to the integrated setting of automobile body front end structure to also can form annular biography power structure through the front end frame at the automobile body front end, promote collision security.

Secondly, through setting up the bottom end rail, can avoid the pedestrian to roll into the vehicle bottom when colliding with the pedestrian, improve pedestrian security. The front auxiliary frame mounting bracket is connected with the connecting bracket and the side bracket, so that the mounting reliability of the front auxiliary frame can be ensured. The support cross beam is arranged, so that the rigidity of the front part of the vehicle body in the height direction of the whole vehicle can be increased, the transmission of collision force between the front cabin longitudinal beams on two sides can be facilitated, and the dispersion and transmission effects of the collision force are improved.

Meanwhile, the cross section of the supporting beam is of an n type, so that the structural strength of the supporting beam can be guaranteed, the supporting effect of the connecting brackets on two sides is improved, the connecting brackets are triangular, the characteristic of large structural strength of the triangular can be utilized, the structural strength of the connecting brackets is guaranteed, and the using effect of the connecting brackets is further guaranteed.

In addition, the front anti-collision beam and the energy-absorbing box are made of extruded aluminum profiles, and the characteristics of high structural strength and low weight of the aluminum profiles can be utilized to ensure the strength of the front anti-collision beam assembly and facilitate the lightweight design of the front anti-collision beam assembly. The front anti-collision beam is partially embedded into the groove, so that the connection between the front anti-collision beam and the energy absorption box can be facilitated, and the connection reliability between the front anti-collision beam and the energy absorption box can be ensured.

Another object of the present utility model is to propose a vehicle whose body has a body front structure as described above.

The vehicle body of the vehicle is provided with the front part structure of the vehicle, and the front cabin longitudinal beam can participate in small overlap collision, so that the transmission effect of the front part of the vehicle on collision force is improved, and the vehicle has good collision safety.

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 schematic view of the overall structure of a vehicle body front structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is a schematic view of a part of a vehicle body front structure according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a front end frame according to an embodiment of the present utility model;

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

FIG. 7 is a schematic view of a supporting beam according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a groove according to an embodiment of the present utility model;

reference numerals illustrate:

1. a front cabin rail; 2. a front bumper beam assembly; 9. a connecting bracket; 10. a front end frame; 11. a lower cross beam; 12. a front subframe mounting bracket; 13. a support beam; 14. front wheel cover side beams; 15. a diagonal bracing beam;

201. an energy absorption box; 2011. a groove; 202. a front bumper beam;

1001. a side bracket; 1002. an upper bracket;

1101. a main body beam; 1102. a connecting beam; 1103. reinforcing ribs.

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, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Taking the vehicle in which the vehicle body front structure described in the present utility model is located as an example, the terms such as "up, down, left, right, front, and rear" used in the embodiments are defined with reference to the up-down direction (also referred to as the height direction), the left-right direction (also referred to as the width direction), and the front-rear direction (also referred to as the length direction) of the vehicle. The "inner and outer" are defined with reference to the contour of the corresponding component, for example, "inner" and "outer" are defined with reference to the contour of the vehicle, with "inner" being the side of the contour of the vehicle closer to the vehicle middle, and "outer" being the opposite.

In addition, in the description of the present utility model, unless otherwise specifically defined, the mating components may be connected using conventional connection structures in the art. Moreover, the terms "mounted," "connected," and "connected" are to be construed broadly. 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.

Example 1

The present embodiment relates to a vehicle body front structure that can make the front cabin side member 1 participate in a small overlap collision and also has a higher degree of participation than the front impact beam 202, so that the front cabin side member 1 can be utilized for effective transmission of collision force, and the safety of the whole vehicle collision is improved.

As shown in fig. 1 to 8, the vehicle body front structure of the present embodiment includes front cabin stringers 1 provided separately on the left and right sides, and a front bumper beam assembly 2 connected to the front cabin stringers 1 on both sides.

The front parts of the front cabin longitudinal beams 1 on two sides are bent to one side outside the vehicle in the left-right direction of the whole vehicle to form an overhanging section, and the energy absorption boxes 201 in the front anti-collision beam assembly 2 are connected to the bending parts of the front cabin longitudinal beams 1. The distance between the front ends of the front cabin stringers 1 on the two sides along the left-right direction of the whole vehicle is larger than the distance between the left and right ends of the front anti-collision beam 202 in the front anti-collision beam assembly 2 along the left-right direction of the whole vehicle.

In this embodiment, it can be understood that, when the vehicle collides, based on the front portion of the front cabin longitudinal beam 1 bending outwards, the front portion of the front cabin longitudinal beam 1 and the front anti-collision beam 202 may form a small overlapping portion in the front-rear direction of the whole vehicle, so that the front cabin longitudinal beam 1 can cooperate with the front anti-collision beam 202 to form and participate in the small overlapping collision, and since the distance between the two ends of the front anti-collision beam 202 is smaller than the distance between the front ends of the front cabin longitudinal beams 1 on both sides, the participation degree of the front cabin longitudinal beam 1 is also higher, so as to effectively absorb energy and transmit collision force, and further improve collision safety.

Based on the above overall description, in this embodiment, as a preferred exemplary structure, the distance between the bending portion of each side front cabin longitudinal beam 1 and the envelope of the front wheel on the same side is 10mm or more, so that the front cabin longitudinal beam 1 and the front wheel can be prevented from interfering, and the smoothness of the movement of the front wheel can be ensured.

In practical design, the distance between the bending portion of each side front cabin longitudinal beam 1 and the wheel package envelope of the front wheel on the same side in this embodiment may be specifically set to 10mm or 12mm, and the like, and only needs to ensure that no interference occurs between the front cabin longitudinal beam 1 and the front wheel.

Meanwhile, as shown in fig. 4, as a preferred embodiment, in the present embodiment, each of the front cabin stringers 1 has a connecting bracket 9 connected to a bent portion thereof, and the crash box 201 is connected to the front cabin stringers 1 through the connecting bracket 9. Here, by providing the connection bracket 9, the connection between the crash box 201 and the front cabin rail 1 can be facilitated, and the connection reliability can be ensured. In this embodiment, in consideration of the demand for transmission of collision force, as a preferred embodiment, the vehicle body front structure further includes a front end frame 10, as shown in fig. 1 and 5. The front end frame 10 includes side brackets 1001 disposed on the left and right sides, and an upper bracket 1002 connected between the top ends of the side brackets 1001, and the side brackets 1001 are connected between the crash boxes 201 and the connection brackets 9 on the same side.

The front end frame 10 is connected between the energy-absorbing box 201 and the connecting bracket 9, so that the integrated arrangement of the front end structure of the vehicle body can be facilitated, and an annular force transmission structure can be formed at the front end of the vehicle body through the front end frame 10, namely, the annular force transmission structure is formed among the front end frame 10, the energy-absorbing box 201 and the front anti-collision beam 202, so that the collision safety is effectively improved.

It should be noted that, in this embodiment, in order to improve the use effect of the front end frame 10, in a specific structural design, corresponding setting and adjustment can be performed according to the actual structural strength requirement and the light-weight requirement, for example, the side bracket 1001 and the upper bracket 1002 can be both provided with a cavity with an opening facing to one side of the vehicle front, and a reinforcing plate rib and the like are disposed in the cavity.

Referring still to fig. 1 and 2, in this embodiment, as a preferred embodiment, a lower cross member 11 is connected between the bottom ends of the side brackets 1001 on both sides, and the lower cross member 11 is disposed lower than the front bumper beam 202 in the height direction of the whole vehicle.

Therefore, based on the arrangement of the lower cross beam 11, pedestrians can be prevented from being involved in the bottom of the vehicle when colliding with the pedestrians, so that the safety of the pedestrians is improved, and the protection requirement of the pedestrians is met. In particular arrangement, the arrangement of the lower cross member 11 may be set and adjusted according to the pedestrian protection requirement, for example, it may be disposed behind the front impact beam 202.

It should be noted that, in the specific structural design of the lower beam 11 in this embodiment, a similar structural form to the front end frame 10 described above may also be adopted, for example, as shown in fig. 6, the lower beam 11 includes a main body beam 1101, and connecting beams 1102 for connecting with two side brackets 1001 separately provided on two sides of the main body beam 1101, and cavities with openings facing one side of the vehicle front are provided on both the main body beam 1101 and the connecting beams 1102, and reinforcing ribs 1103 are provided in the cavities to achieve light weight while ensuring sufficient structural strength.

In this embodiment, as a preferred embodiment, as shown in fig. 2 and 3, front subframe mounting brackets 12 are provided at the bottom of each of the side connection brackets 9, and the side of each of the front subframe mounting brackets 12 facing the front of the vehicle is connected to the side bracket 1001 on the same side. By connecting the front subframe mounting bracket 12 with both the connection bracket 9 and the side bracket 1001, the mounting reliability of the front subframe can be ensured.

In addition, as shown in fig. 1 and 4, in the present embodiment, as a preferred embodiment, a support beam 13 is connected between the two side connection brackets 9. Here, by providing the support cross member 13, the rigidity of the front portion of the vehicle body in the entire vehicle height direction can be increased, which is advantageous in the transmission of the collision force between the front cabin stringers 1 on both sides, and the dispersion and transmission effect of the collision force can be improved.

In particular, as a preferred arrangement, in this embodiment, as shown in fig. 7, the cross section of the supporting beam 13 is of an "n" type, so that the structural strength thereof can be ensured, and the supporting effect, that is, the lifting force transmission effect, on the connecting brackets 9 on both sides can be improved.

Meanwhile, in order to improve the structural strength of the connecting bracket 9, in this embodiment, as shown in fig. 4, the connecting brackets 9 on both sides are triangular from the vertical direction of the whole vehicle, so that the characteristic of large structural strength of the triangle can be utilized, the structural strength of the connecting bracket 9 is ensured, and the use effect is further ensured.

Specifically, the connecting bracket 9 of the present embodiment may be configured to include two triangular connecting plates arranged in a vertically opposed manner and a riser connected between the two connecting plates in a specific structural design, and the connecting bracket 9 may be provided on the front cabin rail 1 on the same side in a cladding manner in a specific installation, whereby superior structural strength of the connecting bracket 9 may be ensured.

In addition, in this embodiment, as another preferred embodiment, the front bumper beam 202 and the crash boxes 201 on both sides are made of extruded aluminum. It can be appreciated that the extruded aluminum profile is adopted, and the characteristics of high structural strength and low weight of the aluminum profile can be utilized to ensure the strength of the front anti-collision beam assembly 2 and facilitate the realization of the lightweight design thereof.

In view of the connection requirement between the front bumper beam 202 and the crash boxes 201, as a preferred implementation manner, in this embodiment, as shown in fig. 8, the front ends of the crash boxes 201 at two sides are both provided with grooves 2011, and a portion of the front bumper beam 202 is embedded into the grooves 2011, so that not only is the connection between the front bumper beam 202 and the crash boxes 201 facilitated, but also the connection reliability between the front bumper beam 202 and the crash boxes 201 can be ensured, and further the smoothness of the transmission of the crash energy at the front bumper beam 202 to the crash boxes 201 is ensured.

It should be noted that each structure not mentioned in the front structure of the vehicle body in the present embodiment may refer to the relevant structural parts in the conventional vehicle body structure, for example, it further includes the front wheel house side rails 14 on the left and right sides, and the diagonal girders 15 connected between the front wheel house side rails 14 and the upper brackets 1002, and the front ends of the front wheel house side rails 14 extend downward and are connected to the front cabin side rails 1 on the same side, and so on.

According to the vehicle body front part structure, the front part of the front cabin longitudinal beam 1 is outwards bent, the distance between the two ends of the front anti-collision beam 202 is smaller than the distance between the front ends of the front cabin longitudinal beams 1 on two sides, the front cabin longitudinal beam 1 can participate in small overlapping collision, and compared with the front anti-collision beam 202, the front cabin longitudinal beam 1 has higher participation, so that the front cabin longitudinal beam 1 can be utilized for effectively transmitting collision force, the safety of the small overlapping collision is improved, and the safety quality of the whole vehicle is improved.

Example two

The present embodiment relates to a vehicle, the body of which has a vehicle body front structure as in the embodiment.

The vehicle of the present embodiment can make the front cabin longitudinal beam 1 participate in a small overlap collision by providing the vehicle body front structure of the first embodiment, so as to cooperate with the front anti-collision beam 202, effectively transmit the collision force received by the front part of the vehicle, and improve the collision safety of the whole vehicle.

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:

the front collision-preventing beam assembly comprises front cabin longitudinal beams (1) which are respectively arranged at the left side and the right side, and front collision-preventing beam assemblies (2) which are connected with the front cabin longitudinal beams (1) at the two sides;

the front parts of the front cabin longitudinal beams (1) at two sides are bent towards one side outside the vehicle in the left-right direction of the whole vehicle, and energy absorption boxes (201) in the front anti-collision beam assembly (2) are connected to the bending parts of the front cabin longitudinal beams (1);

the distance between the front ends of the front cabin longitudinal beams (1) on two sides along the left-right direction of the whole vehicle is larger than the distance between the left-right ends of the front anti-collision beams (202) in the front anti-collision beam assembly (2) along the left-right direction of the whole vehicle.

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

the space between the bending part of the front cabin longitudinal beam (1) on each side and the wheel package envelope of the front wheels on the same side is more than 10 mm.

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

the bending parts of the front cabin longitudinal beams (1) are connected with connecting brackets (9), and the energy absorption boxes (201) are connected with the front cabin longitudinal beams (1) through the connecting brackets (9).

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

also comprises a front end frame (10);

the front end frame (10) comprises side brackets (1001) which are respectively arranged at the left side and the right side, and an upper bracket (1002) which is connected between the top ends of the side brackets (1001) at the two sides;

the side brackets (1001) on two sides are connected between the energy absorption boxes (201) on the same side and the connecting brackets (9).

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

a lower cross beam (11) is connected between the bottom ends of the side brackets (1001) on two sides, and in the whole car height direction, the lower cross beam (11) is lower than the front anti-collision beam (202).

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

front auxiliary frame mounting brackets (12) are arranged at the bottoms of the connecting brackets (9) on the two sides, and one side, facing the front of the vehicle, of each front auxiliary frame mounting bracket (12) is connected to the side bracket (1001) on the same side.

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

a supporting cross beam (13) is connected between the connecting brackets (9) at two sides.

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

the cross section of the supporting beam (13) is n-shaped, and/or the connecting brackets (9) on two sides are triangular when seen from the up-down direction of the whole vehicle.

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

the front anti-collision beam (202) and the energy-absorbing boxes (201) on two sides are made of extruded aluminum profiles, and/or grooves (2011) are formed in the front ends of the energy-absorbing boxes (201) on two sides, and parts of the front anti-collision beam (202) are embedded into the grooves (2011).

10. A vehicle, characterized in that:

a vehicle body of the vehicle having the vehicle body front structure according to any one of claims 1 to 9.