Vehicle and vehicle body thereof

Abstract

The utility model provides a vehicle and a vehicle body thereof. A beam body extending in the left-right direction of the whole vehicle is arranged in the vehicle body. The beam body is located on the side, close to a front wall, of the bottom of a front cabin in a vehicle body, the beam body is connected with the front ends of threshold beams on the left side and the right side in the vehicle body, and an auxiliary frame installation part used for installing a front auxiliary frame is arranged on the beam body. According to the automobile body, the beam body is arranged on the side, close to the front wall, of the bottom of the front engine room, the beam body is connected with the front ends of the threshold beams on the left side and the right side, and the auxiliary frame installation part used for installing the front auxiliary frame is arranged on the beam body, so that the front collision force transmitted to the front auxiliary frame is transmitted to the threshold beams through the beam body, and the front collision force can be transmitted to the front auxiliary frame. And therefore, the risk that the front auxiliary frame moves backwards during the head-on collision is reduced, and the collision safety of the vehicle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle parts technical field, especially a vehicle body, and the utility model relates to a vehicle with the vehicle body. BACKGROUND

[0002] The front subframe of the prior art vehicle is prone to backward movement when the vehicle is subjected to a frontal collision, which affects the safety of the vehicle. In particular, for a vehicle equipped with a battery pack, the backward movement of the front subframe will impact the battery pack located at the rear of the front subframe and damage the battery pack, and even cause the battery pack to catch fire, thereby affecting the safety of the vehicle. SUMMARY

[0003] Therefore, the utility model aims to provide a vehicle body to reduce the risk of backward movement of the front subframe during a frontal collision.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A vehicle body has a beam body extending in the left-right direction of the vehicle.

[0006] The beam body is located at the front end of the beam body and is connected to the front end of the left and right door sill beams in the vehicle body, and a subframe mounting portion for mounting the front subframe is provided on the beam body.

[0007] Further, a cavity extending in the left-right direction of the vehicle is formed in the beam body.

[0008] Further, the beam body includes an upper plate and a lower plate connected by buckling, and the cavity is formed between the upper plate and the lower plate.

[0009] Further, the subframe mounting portion includes a connecting sleeve connected between the upper plate and the lower plate, and the front subframe is connected in the connecting sleeve by fasteners.

[0010] Further, the vehicle body has a front engine compartment longitudinal beam located above the beam body, and the beam body and the front engine compartment longitudinal beam are connected together.

[0011] Further, the vehicle body has a torsion box connected between the door sill beam and the front engine compartment longitudinal beam, and the beam body and the torsion box are connected together.

[0012] Further, the end of the beam body is bifurcated and has a first connecting arm and a second connecting arm; the first connecting arm is connected to the door sill beam, and the second connecting arm is connected to the torsion box.

[0013] Further, the connecting points between the beam body and the rocker beam, the connecting points between the beam body and the front engine compartment longitudinal beam, and the connecting points between the beam body and the torsion box form a triangle.

[0014] Further, the middle part of the beam body is arched towards the front of the vehicle.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The vehicle body has the beam body arranged on the side of the front engine compartment bottom close to the front wall, the front end of the beam body is connected with the rocker beams on the left and right sides, the subframe mounting portion for mounting the front subframe is arranged on the beam body, the collision force transmitted to the front subframe is transmitted to the rocker beams through the beam body, the risk of rear movement of the front subframe in the frontal collision is reduced, and the collision safety of the vehicle is improved.

[0017] In addition, the cavity formed in the beam body can improve the absorption effect of the collision energy and enhance the overall strength and torsional capacity of the beam body. The upper plate and the lower plate of the beam body are connected in the form of buckling, which can ensure the structural reliability of the beam body and facilitate the arrangement and implementation. The connecting sleeve is arranged between the upper plate and the lower plate, which can improve the connection strength between the upper plate and the lower plate. The front subframe is connected to the connecting sleeve through fasteners, which can improve the structural strength of the mounting point and avoid the risk of tearing of the front subframe after the collision, thereby improving the structural safety. The beam body and the front engine compartment longitudinal beam are connected together, so that the frontal collision force transmitted to the front subframe can be transmitted to the rocker beams and the front engine compartment longitudinal beam through the beam body, thereby further reducing the risk of rear movement of the front subframe.

[0018] In addition, the torsion box is connected between the rocker beams and the front engine compartment longitudinal beam, and the torsion box is connected with the beam body. On the one hand, it can enrich the force transmission path and improve the transmission and dispersion effect of the collision force. On the other hand, it can also absorb the collision force through the torsion box, thereby further reducing the influence of the collision force on the front subframe. The first connecting arm is connected with the rocker beam, and the second connecting arm is connected with the torsion box, which facilitates the connection of the beam body with the rocker beam and the torsion box, and improves the transmission effect of the collision force to the rocker beam and the torsion box. The connecting lines of the beam body, the rocker beam, the front engine compartment longitudinal beam and the torsion box form a triangle, which can improve the connection stability of the beam body, the rocker beam, the front engine compartment longitudinal beam and the torsion box by utilizing the high stability of the triangle. The middle part of the beam body is arched towards the front of the vehicle, which can improve the anti-deformation capacity of the beam body and improve the transmission and dispersion effect of the beam body on the collision force.

[0019] In addition, another object of the utility model is to provide a vehicle with the vehicle body as described above.

[0020] The vehicle body improves the collision safety of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application. The embodiments of the application and its

[0022] Figure 1 Structure schematic view of the vehicle body structure according to the first embodiment of the application;

[0023] Figure 2 Structure schematic view of the partial vehicle body structure according to the first embodiment of the application from a first perspective;

[0024] Figure 3 Structure schematic view of the partial vehicle body structure according to the first embodiment of the application from a second perspective;

[0025] Figure 4 Structure schematic view of the partial vehicle body structure according to the first embodiment of the application from a third perspective;

[0026] Figure 5 Structure schematic view of the beam body, the front engine compartment longitudinal beam, the rocker beam and the torsion box in a connected state according to the first embodiment of the application;

[0027] Figure 6 Structure schematic view of the front engine compartment longitudinal beam, the rocker beam and the torsion box according to the first embodiment of the application;

[0028] Figure 7 Structure schematic view of the beam body from a perspective according to the first embodiment of the application;

[0029] Figure 8 Structure schematic view of the beam body from another perspective according to the first embodiment of the application.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 1, beam body; 2, front wall; 3, rocker beam; 4, front subframe; 5, front engine compartment longitudinal beam; 6, torsion box; 7, battery pack; 8, fastener; 9, inner connecting plate;

[0032] 101, upper plate; 102, lower plate; 103, first connecting sleeve; 104, first connecting arm; 105, second connecting arm; 106, third connecting sleeve; 107, second connecting sleeve; 108, fourth connecting sleeve;

[0033] 201, front wall lower plate;

[0034] 401, vehicle frame longitudinal beam; 402, front connecting plate;

[0035] 501, rear section of front engine compartment longitudinal beam. DETAILED DESCRIPTION

[0036] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0037] In the description of the utility model, it should be noted that the orientation words such as 'up, down, left, right, front, back' used in the embodiment are defined with the up-down direction, left-right direction and front-back direction of the automobile as the reference. Among them, the up-down direction of the automobile is also the height direction (Z direction) of the automobile, the front-back direction of the automobile is also the length direction (X direction) of the automobile, and the left-right direction of the automobile is also the width direction (Y direction) of the automobile. In addition, the terms 'first' and'second' are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, in the description of the utility model, unless otherwise explicitly limited, the terms'mounting', 'connecting', 'connection' and 'connecting piece' should be understood broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood in combination with the specific circumstances.

[0039] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0040] Embodiment one

[0041] The embodiment relates to a vehicle body, which has a beam body 1 extending along the left-right direction of the whole vehicle, the beam body 1 is located at one side of the front engine compartment bottom close to the front wall 2 in the vehicle body, the beam body 1 is connected with the front ends of the left and right door sill beams 3 in the vehicle body, and a sub-frame mounting part for mounting a front sub-frame 4 is arranged on the beam body 1.

[0042] The vehicle body described in the embodiment is provided with the beam body 1 at one side of the front engine compartment bottom close to the front wall 2, the beam body 1 is connected with the front ends of the left and right door sill beams 3, and the sub-frame mounting part for mounting the front sub-frame 4 is arranged on the beam body 1, so that the collision force transmitted to the front sub-frame 4 can be transmitted to the door sill beam 3 through the beam body 1, thereby reducing the risk of rear movement of the front sub-frame 4 in the frontal collision, and improving the collision safety of the vehicle.

[0043] Based on the overall introduction as above, one example structure of the vehicle body structure described in the embodiment is as follows Figures 1 to 4As shown in the figure. Among them, Figure 1 The diagram illustrates the positional relationship between the front subframe 4 and the battery pack 7. The battery pack 7 is located at the rear of the front subframe 4 and along the path of its rearward movement. By incorporating beam 1, the risk of the front subframe 4 shifting rearward is reduced, thus improving the safety of the battery pack 7. Alternatively, the battery pack 7 can be omitted from the vehicle structure; in this case, the beam 1 also contributes to improved front-end collision safety.

[0044] like Figure 2 and Figure 3 As shown, in the vertical direction of the vehicle, the beam 1 is located between the rear of the front bulkhead 2 and the front subframe 4, and the rear end of the front subframe 4 is mounted on the bottom of the beam 1 via a subframe mounting part. In a preferred embodiment, a cavity extending along the left-right direction of the vehicle is formed within the beam 1. This not only improves the beam 1's ability to absorb collision energy but also enhances the overall strength and torsional resistance of the beam 1.

[0045] An exemplary structure of beam 1 in this embodiment is as follows: Figure 5 , Figure 7 and Figure 8 As shown, beam 1 includes an upper plate 101 and a lower plate 102 that are interlocked, and a cavity is formed between the upper plate 101 and the lower plate 102. Here, the interlocking connection between the upper plate 101 and the lower plate 102 facilitates the structural reliability of beam 1 and is easy to implement. In a specific implementation, the edge of the upper plate 101 has a downwardly folded flange, and the edge of the lower plate 102 has an upwardly folded flange. The upper plate 101 and the lower plate 102 are interlocked together by the upward and downward flanges and connected by welding.

[0046] like Figure 7 As shown, the subframe mounting section includes a connecting sleeve connecting the upper plate 101 and the lower plate 102, and the front subframe 4 is connected to the connecting sleeve by fasteners 8. To distinguish it from the connecting sleeve described below, the connecting sleeve in the subframe mounting section is referred to hereinafter as the first connecting sleeve 103. The first connecting sleeve 103 is disposed between the upper plate 101 and the lower plate 102 and welded to both. This first connecting sleeve 103 improves the connection strength between the upper plate 101 and the lower plate 102, enhances the structural strength of the subframe mounting section, and helps avoid the risk of tearing of the front subframe 4 after a collision, thereby improving the structural safety of the front subframe 4.

[0047] In specific implementation, such as Figure 3As shown, the subframe mounting parts are located at the left and right ends of the rear of the front subframe 4. Each subframe mounting part includes two spaced-apart first connecting sleeves 103, each with an internal thread. Fasteners 8, such as bolts, pass through the rear of the front subframe 4 and are screwed to the corresponding first connecting sleeve 103, thus enabling the installation of the rear of the front subframe on the beam 1. The connection method between the first connecting sleeves 103 and the bolts is simple, facilitating the installation and removal of the front subframe 4 on the beam 1.

[0048] In a preferred embodiment, the vehicle body has a front engine compartment longitudinal beam 5 located above the beam 1, and the beam 1 is connected to the front engine compartment longitudinal beam 5. This connection allows the frontal impact force transmitted to the front subframe 4 to be simultaneously transmitted to the sill beam 3 and the front engine compartment longitudinal beam 5 via the beam 1, further reducing the impact of the impact force on the front subframe 4 and thus mitigating the risk of rearward displacement of the front subframe 4.

[0049] In terms of specific structure, such as Figure 3 As shown, the vehicle body has a torsion box 6 connecting the sill beam 3 and the front engine compartment longitudinal beam 5, with the beam 1 connected to the torsion box 6. Specifically, the beam 1 is connected to the rear section 501 of the front engine compartment longitudinal beam, and the torsion box 6 is located between the outer side of the rear section 501 of the front engine compartment longitudinal beam and the inner side of the sill beam 3. This arrangement facilitates the dispersion and transmission of collision forces to the sill beam 3 and the rear section 501 of the front engine compartment longitudinal beam, thus enriching the force transmission path. Furthermore, the torsion box 6 helps absorb the collision force, further reducing the impact of the collision force on the front subframe 4.

[0050] In addition, relative to each torsion box 6, an inner connecting plate 9 is provided on the inner side of the rear section 501 of the front engine compartment longitudinal beam. The inner connecting plate 9, the lower front bulkhead 201, and the rear section 501 of the front engine compartment longitudinal beam form a cavity. This cavity can also work with the torsion box 6 to further improve the absorption effect of the collision force.

[0051] To facilitate the connection of beam 1, combined with Figure 5 , Figure 7 and Figure 8 As shown, the end of the beam 1 is forked and has a first connecting arm 104 and a second connecting arm 105. The first connecting arm 104 is connected to the sill beam 3, and the second connecting arm 105 is connected to the torsion box 6. This connection facilitates the connection between the beam 1, the sill beam 3, and the torsion box 6, and also improves the transmission of impact force to the sill beam 3 and the torsion box 6.

[0052] Specifically, the two ends of the beam body 1 are respectively provided with the bottom of the torsion box 6, the first connecting arm 104 is located in front of the second connecting arm 105. The first connecting arm 104 extends outward along the left and right direction of the whole vehicle to the bottom of the rocker beam 3, and the length of the first connecting arm 104 is greater than the length of the second connecting arm 105. Such arrangement is conducive to realizing the connection of the beam body 1 with the rocker beam 3 and the torsion box 6, and has good connection effect.

[0053] As a preferred embodiment, the connecting points between the beam body 1 and the rocker beam 3, the connecting points between the beam body 1 and the front engine compartment longitudinal beam 5, and the connecting points between the beam body 1 and the torsion box 6 form a triangle. For the convenience of description, the connecting point between the beam body 1 and the rocker beam 3 is referred to as the first connecting point, the connecting point between the beam body 1 and the front engine compartment longitudinal beam 5 is referred to as the second connecting point, and the connecting point between the beam body 1 and the torsion box 6 is referred to as the third connecting point. Here, the connecting lines between the first connecting point, the second connecting point and the third connecting point form a triangle, which can utilize the characteristic of high stability of the triangle to improve the connection stability of the beam body 1 with the rocker beam 3, the front engine compartment longitudinal beam 5 and the torsion box 6.

[0054] As shown in Figure 5 and Figure 7 , the first connecting point in the embodiment includes the second connecting sleeve 107 arranged at the free end of the first connecting arm 104. The bolt is connected with the nut of the inner side wall of the rocker beam 3 after penetrating through the second sleeve and the bottom of the rocker beam 3, so as to connect the beam body 1 and the rocker beam 3 together. The second connecting point includes the third connecting sleeve 106 arranged at the two ends of the beam body 1, and the third connecting sleeve 106 is located between the first connecting sleeve 103 and the second connecting sleeve 107. The bolt is connected with the nut of the inner side wall of the lower plate 102 after penetrating through the third connecting sleeve 106 and the lower plate 102, so as to connect the beam body 1 and the rear section 501 of the front engine compartment longitudinal beam together.

[0055] The torsion box 6 and the inner connecting plate 9 are respectively located on the inner and outer sides of the second connecting point, so as to improve the connection strength of the beam body 1. In order to improve the structural strength at the second connecting point, a protruding part can be arranged on the upper plate 101, and the top end of the third connecting sleeve 106 is connected to the protruding part. The third connecting point includes the fourth connecting sleeve 108 arranged at the free end of the second connecting arm 105. The bolt is connected with the nut of the inner side wall of the torsion box 6 after penetrating through the fourth connecting sleeve 108 and the torsion box 6, so as to connect the beam body 1 and the torsion box 6 together. As shown in Figure 7 , the connecting lines between the three connecting points form a triangle, that is, the connecting lines of the second connecting sleeve 107, the third connecting sleeve 106 and the fourth connecting sleeve 108 at the same end form a triangle.

[0056] In this embodiment, the cooperation of the first connection point, the second connection point, and the third connection point helps ensure the secure installation of the beam 1 on the vehicle body and reduces the number of connecting parts, thereby reducing production costs. Furthermore, the use of bolts, connecting sleeves, and nuts to connect the beam 1 to the rear section 501 of the front engine compartment longitudinal beam, the sill beam 3, and the torsion box 6 offers the advantage of convenient installation and disassembly, facilitating the disassembly and maintenance of the beam 1.

[0057] As a preferred embodiment, refer to Figure 5 As shown, viewed from the vertical direction of the vehicle, the middle part of beam 1 is arched forward. This not only improves the deformation resistance of beam 1, but also allows the middle part of beam 1 to guide the impact force to both ends for transmission and dispersion when bearing the frontal collision force, thereby improving the beam 1's effect in transmitting and dispersing the impact force.

[0058] Furthermore, traditional vehicle body structures rely on the A-pillar lower sill beam 3 to impede small-overlapping collision forces, making the A-pillar highly susceptible to deformation and thus affecting the safety of occupants. In this embodiment, the first connecting arm 104 of the beam 1 is connected to the front end of the sill beam 3, allowing the beam 1 to also serve as an A-pillar impediment beam.

[0059] In a small overlap collision, the impact force acting on the A-pillar is blocked by beam 1. The triangular arrangement of the three connection points enhances the impact strength, allowing the impact force to be dispersed rearward from the sill beam 3 and the rear section 501 of the front engine compartment longitudinal beam. Beam 1 provides a shock-absorbing effect, thus increasing the force transmission path in a small overlap collision and preventing A-pillar deformation. Here, the combination of beam 1 and multiple force transmission paths improves the vehicle's safety in small overlap collisions.

[0060] In this embodiment, the mounting method of the front subframe 4 at the front can refer to existing technologies. As a structural example, such as… Figure 3 As shown, the front subframe 4 has forward-extending longitudinal beams 401 on both the left and right sides of its front end. The front end of each longitudinal beam 401 is connected to the bottom of the front end of the front engine compartment longitudinal beam 5, thus enabling the installation of the front end of the front subframe 4. The connection structure between the front end of the longitudinal beam 401 and the front engine compartment longitudinal beam 5 can refer to existing technologies. To improve the force transmission performance of the front subframe 4, the spacing between the two support longitudinal beams gradually decreases from front to rear. Additionally, a front connecting plate 402 is connected between the front ends of the two longitudinal beams 401 to improve the structural strength and rigidity of the front subframe 4.

[0061] The vehicle body structure described in the embodiment is beneficial to optimizing the force transmission path of the vehicle body, so that the front collision force can be transmitted to the rear section 501 of the front engine compartment longitudinal beam and the rocker beam 3 through the beam body 1 behind the front subframe 4, the force transmission path of the collision force can be increased, the crash performance of the front part of the vehicle body under the front collision and small overlap collision working condition can be improved, the risk of rearward movement of the front subframe 4 is reduced, and thus the rearward movement of the front subframe 4 is avoided. In particular, for the vehicle with the battery pack 7, the rearward movement of the front subframe 4 colliding with the battery pack 7 is also prevented, and thus the safety of the battery pack 7 is improved.

[0062] Embodiment two

[0063] The embodiment relates to a vehicle with the vehicle body as described above.

[0064] The vehicle described in the embodiment is beneficial to improving the safety of the vehicle under the front collision and small overlap collision working condition by arranging the vehicle body as above.

[0065] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A vehicle body, characterized in that: a beam body (1) extending in the left-right direction of the vehicle is provided in the vehicle body; the beam body (1) is located at one side of the vehicle body near the front wall (2) at the bottom of the front compartment, and the beam body (1) is connected to the front ends of the rocker beams (3) on the left and right sides of the vehicle body, and a sub-frame mounting portion for mounting a front sub-frame (4) is provided on the beam body (1).

2. The vehicle body according to claim 1, characterized in that: a cavity extending in the left-right direction of the vehicle is formed in the beam body (1).

3. The vehicle body according to claim 2, characterized in that: the beam body (1) comprises an upper plate (101) and a lower plate (102) connected together, and the cavity is formed between the upper plate (101) and the lower plate (102).

4. The vehicle body according to claim 3, characterized in that: the sub-frame mounting portion comprises a connecting sleeve connected between the upper plate (101) and the lower plate (102), and the front sub-frame (4) is connected in the connecting sleeve by fasteners (8).

5. The vehicle body according to claim 1, characterized in that: a front compartment longitudinal beam (5) is provided above the beam body (1) in the vehicle body, and the beam body (1) and the front compartment longitudinal beam (5) are connected together.

6. The vehicle body according to claim 5, characterized in that: a torsion box (6) is connected between the rocker beams (3) and the front compartment longitudinal beam (5) in the vehicle body, and the beam body (1) and the torsion box (6) are connected together.

7. The vehicle body according to claim 6, characterized in that: the end of the beam body (1) is bifurcated, and has a first connecting arm (104) and a second connecting arm (105); the first connecting arm (104) is connected to the rocker beam (3), and the second connecting arm (105) is connected to the torsion box (6).

8. The vehicle body according to claim 6, characterized in that: the connecting points between the beam body (1) and the rocker beams (3), the connecting points between the beam body (1) and the front compartment longitudinal beam (5), and the connecting points between the beam body (1) and the torsion box (6) form a triangle.

9. The vehicle body according to any one of claims 1 to 8, characterized in that: the middle part of the beam body (1) is arched towards the front of the vehicle from the top-bottom direction of the vehicle.

10. A vehicle, characterized in that: the vehicle has the vehicle body according to any one of claims 1 to 9. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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