CN211494239U - Automobile body and automobile - Google Patents

Abstract

The application relates to the technical field of vehicles, in particular to a vehicle body and an automobile. This automobile body includes: the two first longitudinal beams are arranged along the transverse direction of the vehicle body; the two first longitudinal beams are connected with the cross beam; at least one second longitudinal beam is positioned between the two first longitudinal beams and connected with the cross beam; the first longitudinal beam and the second longitudinal beam are positioned on two sides of the cross beam along the longitudinal direction of the vehicle body. The second longitudinal beam is connected with the cross beam, so that a force transmission path of the vehicle body collision force from the cross beam to the second longitudinal beam is increased, a path for transmitting and dispersing the collision force backwards is increased, the vehicle body rigidity is improved, and the collision safety of the whole vehicle is improved.

Description

A body and a car

technical field

The present application relates to the technical field of vehicles, and in particular, to a vehicle body and an automobile.

Background technique

The force transmission structure of the front car body is generally welded by the front longitudinal beam, the left and right upper side beams of the front cabin, the front wall beam, the lower inner panel of the A-pillar, and the floor lower longitudinal beam.

For electric vehicles, the power battery is generally arranged directly under the floor. Due to the limitation of the height of the whole vehicle from the ground, there is no space for the force-transmitting longitudinal beams at the bottom of the floor. Therefore, there is a lack of a main force-transmitting path, which is not conducive to the frontal impact performance. Limited by the arrangement of the battery pack and the upper pipeline wiring harness, the cross section is very small, and the force cannot be effectively transmitted during the frontal collision; at the same time, many electric vehicles do not have a middle channel structure, or have a middle channel, but there is no effective overlap with the front wall beam. , can not achieve effective force transmission; the front cabin structure designed in this way lacks an effective force transmission path. In order to ensure the collision performance, it is necessary to increase the thickness of the parts or add more reinforcements, and the weight is large, which is not conducive to the lightweight design of electric vehicles and Increased cruising range.

Utility model content

The present application provides a vehicle body and an automobile, aiming at increasing the collision force transmission path of the vehicle body.

The application provides a vehicle body comprising:

two first longitudinal beams, the two first longitudinal beams are arranged along the lateral direction of the vehicle body;

a beam, the two first longitudinal beams are connected with the beam;

second longitudinal beams, at least one of the second longitudinal beams is located between the two first longitudinal beams and connected with the transverse beams;

Wherein, along the longitudinal direction of the vehicle body, the first longitudinal beam and the second longitudinal beam are located on both sides of the transverse beam.

Optionally, the beam includes a first beam and a second beam, the first beam and the second beam are arranged vertically along the vehicle body, and the first beam is located above the second beam ; the first longitudinal beam is connected with the first transverse beam and the second transverse beam;

The second longitudinal beam is connected to the first transverse beam and the second transverse beam.

Optionally, the first beam includes a first cover plate and a second cover plate, the first cover plate and the second cover plate are connected to form a cavity;

The second longitudinal beam is connected to the second cover plate.

Optionally, the first longitudinal beam is provided with transverse ribs, and a plurality of the transverse ribs are connected to the first transverse beam;

Along the vertical direction of the vehicle body, a plurality of the transverse ribs are arranged in sequence.

Optionally, a first reinforcement member is provided on the first beam, and the first reinforcement member is located in the cavity and connected with the first sealing plate and the second sealing plate;

At least two of the first reinforcing members are located on both sides of the second longitudinal beam, and the first reinforcing members are hollow structures.

Optionally, the second longitudinal beam is provided with a second reinforcement member, and along the longitudinal direction of the vehicle body, the second reinforcement member extends obliquely upward and is connected to the first cover plate;

The second reinforcement is a hollow structure.

Optionally, there are first flanges on both sides of the first reinforcing member, and second flanges on both sides of the second reinforcing member;

The transverse rib overlaps with the first flange, and the first flange overlaps with the second flange.

Optionally, the second longitudinal beam is a hollow structure.

Optionally, the vehicle body further includes:

a third longitudinal beam, two of the third longitudinal beams are located on both sides of the second longitudinal beam along the transverse direction of the vehicle body, and are connected to the second transverse beam;

a fourth longitudinal beam, two of the fourth longitudinal beams are located on both sides of the third longitudinal beam along the lateral direction of the vehicle body, and are connected with the transverse beam;

Wherein, the fourth longitudinal beam is connected with the first longitudinal beam.

The present application also provides a vehicle, comprising the vehicle body described in any one of the above.

The technical solutions provided in this application can achieve the following beneficial effects.

By connecting the second longitudinal beam to the transverse beam, the force transmission path of the collision force from the transverse beam to the second longitudinal beam is increased, the path for dispersing the collision force to the rear is increased, the rigidity of the vehicle body is improved, and the collision safety of the whole vehicle is improved.

It is to be understood that the foregoing general description and the following detailed description are exemplary only and do not limit the application.

Description of drawings

FIG. 1 is a schematic structural diagram of a vehicle body provided in an embodiment of the application in a specific embodiment;

Fig. 2 is the enlarged schematic diagram of part A in Fig. 1;

FIG. 3 is a cross-sectional view along the B-B direction in FIG. 1 .

Reference number:

1 - the first longitudinal beam;

11-cross bars;

2 - beam;

21 - the first beam;

211 - the first cover plate;

212-Second sealing plate;

213 - cavity;

22 - the second beam;

23 - the first reinforcement;

231 - first flanging;

3 - the second longitudinal beam;

31 - the second reinforcement;

311 - second flanging;

4 - the third longitudinal beam;

5- Fourth longitudinal beam;

6-Front column;

7-upper side beam;

8-connector;

9-A pillar inner lower plate.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description serve to explain the principles of the application.

Detailed ways

In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

It should be clear that the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the embodiments of this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" used in this document is only an association relationship to describe the associated objects, indicating that there may be three kinds of relationships, for example, A and/or B, which may indicate that A exists alone, and A and B exist at the same time. B, there are three cases of B alone. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should be noted that the directional words such as "up", "down", "left", and "right" described in the embodiments of the present application are described from the angles shown in the drawings, and should not be construed as implementing the present application. Example limitation. Also, in this context, it should also be understood that when an element is referred to as being "on" or "under" another element, it can not only be directly connected "on" or "under" the other element, but also Indirectly connected "on" or "under" another element through intervening elements.

As shown in FIG. 1 to FIG. 3 , an embodiment of the present application provides a vehicle body, which includes:

Two first longitudinal beams 1, the two first longitudinal beams 1 are arranged along the transverse direction X of the vehicle body; cross beam 2, the two first longitudinal beams 1 are connected with the transverse beam 2; the second longitudinal beam 3, at least one second longitudinal beam 3 is located between the two first longitudinal beams 1 and is connected with the cross beam 2; wherein, along the longitudinal direction Y of the vehicle body, the first longitudinal beam 1 and the second longitudinal beam 3 are located on both sides of the transverse beam 2; the car body of the front cabin When colliding, the vehicle body transmits the collision force through the first longitudinal beam 1 to the cross beam 2, and then transmits it to the second longitudinal beam 3 and the other side of the vehicle body through the transverse beam 2. Compared with the prior art, the first longitudinal beam 1 will collide The force is transmitted to the other side of the vehicle body through the cross beam 2. In this embodiment, the force transmission path of the collision force through the cross beam 2 to the second longitudinal beam 3 is increased, and the path for dispersing the collision force to the rear is increased, and the rigidity of the vehicle body is improved. Thereby, the collision safety of the whole vehicle is improved.

In a possible design, as shown in FIG. 1 , the beam 2 includes a first beam 21 and a second beam 22 , the first beam 21 and the second beam 22 are arranged along the vertical direction Z of the vehicle body, and the first beam 21 Located above the second transverse beam 22 , the first longitudinal beam 1 is connected with the first transverse beam 21 and the second transverse beam 22 , and the second longitudinal beam 3 is connected with the first transverse beam 21 and the second transverse beam 22 . In this embodiment, the middle cross beam 2 of the vehicle body is set as a double cross beam 2 structure. When the front cabin of the automobile collides, the first longitudinal beam 1 transmits the collision force to the second longitudinal beam 3, the first longitudinal beam 21 through the first transverse beam 21 The longitudinal beam 1 transmits the collision force to the other side of the vehicle body through the first beam 21, the first longitudinal beam 1 transmits the collision force to the second longitudinal beam 3 through the second beam 22, and the first longitudinal beam 1 transmits the collision force through the second beam 22. The two cross beams 22 are transmitted to the other side of the car body, and the force transmission path branches are increased through the structure of the double cross beams 2, which can effectively disperse and transmit the collision energy, and also help to maintain the stability of the front wall structure, without increasing the material thickness of the car body and strengthening The number of parts enhances the strength of the car body, and reduces the weight of the car body while meeting the performance of the car body.

As shown in FIG. 3 , the first cross beam 21 includes a first cover plate 211 and a second cover plate 212 , the first cover plate 211 and the second cover plate 212 are connected to form a cavity, and the second longitudinal beam 3 and the second cover plate 212 For connection, in this embodiment, a cavity is formed by welding the first cover plate 211 and the second cover plate 212, and the first beam 21 is designed as a cavity structure, which improves the rigidity of the vehicle body and reduces the weight of the vehicle body.

In a possible design, as shown in FIG. 3 , the first longitudinal beam 1 is provided with transverse ribs 11, and a plurality of transverse ribs 11 are connected to the first transverse beam 21; In this embodiment, transverse ribs 11 are arranged on the first longitudinal beam 1 to improve the overall strength of the vehicle body, and a plurality of transverse ribs 11 are respectively located on the upper end surface, the middle body and the lower end surface of the first transverse beam 21 , and play a role in the first transverse beam 21 . For the support function, the first cross beam 21 is supported by the cross bar 11 instead of the bracket, which simplifies the connection process and realizes the lightweight design of the vehicle body at the same time.

In another possible design, the first longitudinal beam 1 is connected to the cross beam 2 through the connecting member 8, and the connecting member 8 is provided with cross bars 11, and a plurality of cross bars 11 are connected to the first cross beam 21 along the vertical direction Z of the vehicle body. , a plurality of transverse ribs 11 are arranged in sequence, and the first longitudinal beam 1 and the transverse beam 2 are connected by the connecting piece 8, which can simplify the forming structure of the first longitudinal beam 1 and the transverse beam 2 and facilitate installation and positioning.

Wherein, the connecting piece 8 can be a casting piece, which improves the connection strength of the first longitudinal beam 1 and the transverse beam 2 .

Specifically, the first beam 21 is made of high-strength plates, the second beam 22 is made of extruded aluminum profiles, the connecting piece 8 is connected to the second beam 22 by arc welding, and the connecting piece 8 is connected to the first beam 21 by SPR (self-piercing riveting) or FDS (flow riveting). Drill screw connection) connection, and apply structural adhesive to the overlap to enhance the connection strength and prevent electrochemical corrosion of steel-aluminum overlap.

As shown in FIG. 1 and FIG. 2 , the first cross beam 21 is provided with a first reinforcing member 23, the first reinforcing member 23 is located in the cavity, and is connected with the first sealing plate 211 and the second sealing plate 212; at least two The first reinforcements 23 are located on both sides of the second longitudinal beam 3 , the first reinforcements 23 are hollow structures, and the first reinforcements 23 are welded on the first transverse beam 21 to improve the strength of the first transverse beam 21 and further improve the strength of the vehicle body , The first reinforcement 23 is welded in the cavity to provide assembly space for other sheet metal parts on the vehicle body. The first reinforcement 23 is a hollow structure, which reduces the weight of the first beam 21, thereby making the vehicle body lightweight.

Further, as shown in FIG. 1 , the second longitudinal beam 3 is provided with a second reinforcing member 31 . Along the longitudinal direction Y of the vehicle body, the second reinforcing member 31 extends obliquely upward and is connected to the first cover plate 211 . It is a hollow structure, and the second longitudinal beam 3 is welded with a second reinforcing member 31 to increase the strength of the first cross beam 21 and further improve the strength of the vehicle body. The connection area between the two longitudinal beams 3 and the first transverse beam 21 improves the connection strength of the second longitudinal beam 3 and the first transverse beam 21, so that the force is smoothly transmitted from the first transverse beam 21 to the second longitudinal beam 3 during the collision process, and the The second reinforcement 31 is a hollow structure, which reduces the weight of the second longitudinal beam 3, thereby reducing the weight of the vehicle body.

Further, as shown in FIG. 2 , the first reinforcing member 23 has first flanges 231 on both sides, the second reinforcing member 31 has second flanges 311 on both sides, and the transverse ribs 11 overlap with the first flanges 231 . The first flange 231 overlaps with the second flange 311 . In this embodiment, when the vehicle body collides, the force is transmitted to the transverse rib 11 through the first longitudinal beam 1, and the transverse rib 11 is lapped with the first flange 231 to transmit the force to the first reinforcing member 23. The first reinforcing member 23 By overlapping with the second flange 311, the force is transmitted to the second reinforcement 31, and the path for transmitting the collision force to the second longitudinal beam 3 is increased, so that the second longitudinal beam 3 can effectively participate in the collision force transmission, and further, The second longitudinal beam 3 is a hollow structure, and the second longitudinal beam 3 reduces the weight of the vehicle body while participating in the force transmission.

As shown in FIG. 1 , the vehicle body further includes: a third longitudinal beam 4, along the lateral direction X of the vehicle body, two third longitudinal beams 4 are located on both sides of the second longitudinal beam 3 and are connected to the second transverse beam 22; Four longitudinal beams 5, along the transverse direction X of the vehicle body, two fourth longitudinal beams 5 are located on both sides of the third longitudinal beam 4, and are connected with the transverse beam 2; wherein, the fourth longitudinal beam 5 is connected with the first longitudinal beam 1. In this embodiment, when the vehicle body collides, the first longitudinal beam 1 transmits the collision force to the third longitudinal beam 4 and the fourth longitudinal beam 5 through the second beam 22 . The power transmission is dispersed, the rigidity of the car body is improved, and the collision safety of the whole vehicle is improved.

To sum up, in the embodiment of the present application, the transmission path of the collision force includes: a. the first longitudinal beam 1 - the first transverse beam 21 - the first longitudinal beam 1 on the other side of the vehicle body; b. the first longitudinal beam 1 - The second cross beam 22 - the first longitudinal beam 1 on the other side of the vehicle body; c. the first longitudinal beam 1 - the first transverse beam 21 - the second longitudinal beam 3; b. the first longitudinal beam 1 - the second transverse beam 21 - the second Longitudinal beam 3; e. first longitudinal beam 1 - transverse bar 11 - first reinforcement 23 - second reinforcement 31 - second longitudinal beam 3; f. first longitudinal beam 1 - second transverse beam 22 - third longitudinal beam 3; g. The first longitudinal beam 1 - the second transverse beam 22 - the fourth longitudinal beam 5; compared with the prior art, the transmission path is increased: a. The first longitudinal beam 1 - the first transverse beam 21 - the first longitudinal beam on the other side of the vehicle body a longitudinal beam 1; c. the first longitudinal beam 1 - the first transverse beam 21 - the second longitudinal beam 3; b. the first longitudinal beam 1 - the second transverse beam 22 - the second longitudinal beam 2; e. the first longitudinal beam 1 - Cross bar 11 - First reinforcing member 23 - Second reinforcing member 31 - Second longitudinal beam 3; By setting the cross beam as a double beam structure, the path for dispersing the collision force to the other side of the vehicle body is increased, through the second longitudinal beam The beam 3 is connected with the first cross beam 21 and the second cross beam 22 to increase the dispersing path for transmitting the collision force to the rear side of the vehicle body. By overlapping with each other, a path for dispersing collision force transmission is added, the overall rigidity of the vehicle body is improved, and the collision safety of the vehicle is improved.

Specifically, the first longitudinal beam 1 is connected to the front column 6, the front column 6 is connected to the upper side beam 7, the upper side beam 7 is connected to the A-pillar inner and lower plate 9, the A-pillar inner and lower plate 9 is connected to the fourth longitudinal beam 5, and the upper side beam The beam 7 is located above the first longitudinal beam 1. When the vehicle body collides, the force is transmitted to the first longitudinal beam 1 and the upper side beam 7 through the front pillar 6. The upper side beam 7 realizes the transmission of the upper section force, and the first longitudinal beam 1 realizes the lower section. The transmission of force, the two simultaneously transmit and disperse the force to the rear of the vehicle body in turn.

This embodiment also provides an automobile, including the vehicle body described in any of the above embodiments, and is connected to the cross beam 2 through the second longitudinal beam 3 to increase the force transmission path and improve the collision safety of the whole vehicle. The cross beam 2 is set as The double beam structure increases the branches of the force transmission path, reduces the overall material thickness and the number of reinforcements, and achieves a lightweight body while meeting the performance requirements.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (10)

1. A vehicle body, characterized in that the vehicle body comprises: two first longitudinal beams, the two first longitudinal beams are arranged along the lateral direction of the vehicle body; a beam, the two first longitudinal beams are connected with the beam; second longitudinal beams, at least one of the second longitudinal beams is located between the two first longitudinal beams, and the second longitudinal beams are connected to the transverse beams; Wherein, along the longitudinal direction of the vehicle body, the first longitudinal beam and the second longitudinal beam are located on both sides of the transverse beam. 2 . The vehicle body according to claim 1 , wherein the cross member comprises a first cross member and a second cross member, and the first cross member and the second cross member are arranged in a vertical direction of the vehicle body, and 2 . the first beam is located above the second beam; the first longitudinal beam is connected with the first transverse beam and the second transverse beam; The second longitudinal beam is connected to the first transverse beam and the second transverse beam. 3 . The vehicle body according to claim 2 , wherein the first cross member comprises a first cover plate and a second cover plate, and the first cover plate and the second cover plate are connected to form a cavity; 4 . The second longitudinal beam is connected to the second cover plate. 4. The vehicle body according to claim 3, wherein the first longitudinal beam is provided with transverse ribs, and a plurality of the transverse ribs are connected to the first transverse beam; Along the vertical direction of the vehicle body, a plurality of the transverse ribs are arranged in sequence. 5 . The vehicle body according to claim 4 , wherein a first reinforcing member is provided on the first cross member, and the first reinforcing member is located in the cavity and is connected with the first cover plate and all the other parts. 6 . the second sealing plate is connected; At least two of the first reinforcing members are located on both sides of the second longitudinal beam, and the first reinforcing members are hollow structures. 6 . The vehicle body according to claim 5 , wherein the second longitudinal beam is provided with a second reinforcement member, and along the longitudinal direction of the vehicle body, the second reinforcement member extends obliquely upward to the first reinforcement member. 7 . A board connection; The second reinforcement is a hollow structure. 7 . The vehicle body according to claim 6 , wherein the first reinforcing member has first flanges on both sides, and the second reinforcing member has second flanges on both sides; 7 . The transverse rib overlaps with the first flange, and the first flange overlaps with the second flange. 8 . The vehicle body according to claim 1 , wherein the second side member is a hollow structure. 9 . 9. The vehicle body according to any one of claims 2 to 7, characterized in that, further comprising: a third longitudinal beam, two of the third longitudinal beams are located on both sides of the second longitudinal beam along the transverse direction of the vehicle body, and are connected to the second transverse beam; a fourth longitudinal beam, two of the fourth longitudinal beams are located on both sides of the third longitudinal beam along the lateral direction of the vehicle body, and the fourth longitudinal beam is connected to the transverse beam; Wherein, the fourth longitudinal beam is connected with the first longitudinal beam. 10 . An automobile, characterized in that the automobile includes a vehicle body, and the vehicle body is the vehicle body according to any one of claims 1 to 9 .

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