Vehicle body and vehicle

Abstract

The invention provides a vehicle body of a vehicle and the vehicle. According to the vehicle body of the vehicle, an auxiliary frame and a battery pack are arranged in the vehicle body; an energy absorption structure is arranged on the side, close to the battery pack, of the auxiliary frame and extends towards one side of the battery pack, and the end, close to the battery pack, of the energy absorption structure is at least partially overlapped with the projection of the battery pack in the front-back direction of the whole vehicle. According to the vehicle body of the vehicle, the energy absorption structure is arranged on the auxiliary frame, and the end, close to the battery pack, of the energy absorption structure is at least partially overlapped with the projection of the battery pack in the front-back direction of the whole vehicle, so that force transmission between the auxiliary frame and the battery pack during vehicle collision is facilitated, and the energy absorption effect during collision is improved; and pulling of the auxiliary frame to the longitudinal beam rear section and the foot pit area can be restrained, and the foot pit invasion amount is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle parts, and in particular to a vehicle body. Meanwhile, the present invention also relates to a vehicle provided with the vehicle body. Background Art

[0002] At present, as automobile design enters the high-end stage, more and more models pay more attention to the design of the collision safety performance of the whole vehicle. However, since the structural design of pure electric vehicles pursues high efficiency and high integration, the cantilever of the front cabin longitudinal beam is generally short, and it is impossible to fully absorb energy in the collision condition. Therefore, when the longitudinal beam is longitudinally crushed, it is easy for the longitudinal beam to bend upward and bend inward. In addition, due to the limitations of the existing vehicle body structure, the force transmission effect and buffering energy absorption effect between the subframe and the whole vehicle body are often poor, especially when the vehicle collides head-on, the force transmission between the subframe and the body is not smooth, which has an adverse effect on the collision safety performance of the whole vehicle. Summary of the invention

[0003] In view of this, the present invention aims to provide a vehicle body to enhance the force transmission and energy absorption effects of the vehicle body during a collision.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A vehicle body, wherein a subframe and a battery pack are provided in the vehicle body;

[0006] An energy absorbing structure is provided on one side of the subframe close to the battery pack. The energy absorbing structure extends toward one side of the battery pack, and one end of the energy absorbing structure close to the battery pack at least partially overlaps with the projection of the battery pack in the front-rear direction of the entire vehicle.

[0007] Furthermore, in the left-right direction of the vehicle, the energy absorbing structure is located in the middle of the sub-frame; and / or the energy absorbing structure is located at the center line of the vehicle body.

[0008] Furthermore, a gap is provided between one end of the energy absorbing structure close to the battery pack and the battery pack.

[0009] Furthermore, a connecting frame is provided at one end of the battery pack close to the sub-frame, and an end of the energy absorbing structure close to the battery pack is arranged corresponding to the connecting frame in the front-rear direction of the vehicle; and / or,

[0010] The battery pack is provided with an internal longitudinal beam extending along the front-rear direction of the whole vehicle, and the internal longitudinal beam is arranged corresponding to the energy absorbing structure in the front-rear direction of the whole vehicle.

[0011] Furthermore, the energy absorbing structure comprises an energy absorbing box, and the energy absorbing box is provided with collapse ribs.

[0012] Furthermore, the energy absorption box is in a trapezoidal shape with a cross-section gradually decreasing from front to back, and a cavity is formed inside the energy absorption box.

[0013] Furthermore, a mounting crossbeam is provided at the rear of the subframe, and the energy absorbing structure is arranged on the mounting crossbeam;

[0014] An inclined connecting beam is provided between the installation cross beam and the door sill beam.

[0015] Furthermore, the installation beam comprises a beam body and extension beams arranged on both sides of the beam body;

[0016] The energy absorbing structure is arranged on the cross beam body, and the connecting beam is arranged between the extension beam and the threshold beam.

[0017] Furthermore, a subframe anti-collision beam is provided at one end of the subframe away from the battery pack, and the subframe anti-collision beam is connected to the subframe through subframe energy absorption boxes disposed on the left and right sides;

[0018] The vehicle body is provided with vehicle body longitudinal beams arranged on the left and right sides, and the ends of the vehicle body longitudinal beams on each side are respectively connected with main energy absorbing boxes arranged correspondingly to the sub-frame energy absorbing boxes on the same side.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The vehicle body described in the present invention is provided with an energy absorbing structure extending toward the battery pack on the subframe, and one end of the energy absorbing structure close to the battery pack at least partially overlaps with the projection of the battery pack in the front-rear direction of the entire vehicle, thereby facilitating force transmission between the subframe and the battery pack when the vehicle collides, and is beneficial to improving the energy absorption effect during a collision, and can inhibit the subframe from pulling on the rear section of the longitudinal beam and the footwell area, thereby reducing the amount of footwell intrusion.

[0021] In addition, the energy absorption structure can be set in the middle of the subframe in the left-right direction of the vehicle to facilitate the arrangement of the energy absorption structure and the force transmission between the subframe and the battery pack. And by providing a gap between the energy absorption structure and the battery pack, when the collision force is large, the energy absorption structure and the battery pack will contact and collapse to absorb energy, avoiding direct contact and damage to the battery pack installation point in the event of a collision, thereby providing better protection for the battery pack.

[0022] In addition, by providing a connecting frame on the battery pack and arranging the connecting frame and the energy absorbing structure in a corresponding manner in the front-rear direction, the energy absorbing structure can transmit the collision force to the battery pack through the connecting frame, further improving the protection of the battery pack. In addition, by providing an internal longitudinal beam corresponding to the energy absorbing structure inside the battery pack, the force transmitted to the battery pack by the energy absorbing structure is transmitted backwards through the internal longitudinal beam, thereby improving the force transmission effect.

[0023] Secondly, the energy absorption box can be provided with collapse ribs to improve the structural strength and energy absorption effect of the energy absorption box. In addition, by making the energy absorption box a trapezoid with a gradually decreasing cross-section from front to back and forming a cavity inside the energy absorption box, the energy absorption box can have a better structural strength and achieve a better energy absorption effect.

[0024] Furthermore, a mounting crossbeam is provided at the rear of the subframe, an energy absorbing structure is arranged on the mounting crossbeam, and an inclined connecting beam is provided between the mounting crossbeam and the threshold beam, so that the subframe can transmit force to the battery pack and the threshold beam respectively through the energy absorbing structure and the connecting beam, which is conducive to realizing multi-channel force transmission and improving the force transmission effect.

[0025] In addition, by providing a subframe energy absorption box and a main energy absorption box, it is conducive to forming an upper and lower energy absorption structure, thereby improving the energy absorption effect.

[0026] Another object of the present invention is to provide a vehicle having the vehicle body as described above.

[0027] The vehicle described in the present invention is helpful to improve the collision safety performance of the vehicle by being provided with the vehicle body as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 A schematic structural diagram of a vehicle body from one perspective according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A magnified view of part A;

[0031] Figure 3 A schematic structural diagram of a vehicle body from another perspective according to an embodiment of the present invention;

[0032] Figure 4 for Figure 3 A magnified view of part B;

[0033] Figure 5 for Figure 3 Enlarged view of part C;

[0034] Figure 6 It is a schematic diagram of a partial structure of a vehicle body according to an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1. Subframe; 2. Battery pack; 3. Energy absorption structure; 4. Groove; 5. Gap; 6. Internal longitudinal beam; 7. Mounting crossbeam; 701. Crossbeam body; 702. Extension beam; 8. Crushing ribs; 9. Connecting frame; 10. Connecting beam; 11. Subframe anti-collision beam; 12. Subframe energy absorption box; 13. Vehicle body longitudinal beam; 14. Main energy absorption box; 15. Main anti-collision beam. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0038] In the description of the present invention, it should be noted that the directional words such as "up, down, left, right, front, and back" used in this embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the car. Among them, the up-down direction of the car is also the height direction of the car, the front-back direction of the car is also the length direction of the car, and the left-right direction of the car is also the width direction of the car.

[0039] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connected", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0040] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0041] Embodiment 1

[0042] This embodiment relates to a vehicle body, the overall structure of which is as follows: Figures 1 to 6 As shown in the figure, a subframe 1 and a battery pack 2 are provided in the vehicle body. An energy absorbing structure 3 is provided on the side of the subframe 1 close to the battery pack 2, and the energy absorbing structure 3 extends toward the side of the battery pack 2, and one end of the energy absorbing structure 3 close to the battery pack 2 at least partially overlaps with the projection of the battery pack 2 in the front-rear direction of the whole vehicle.

[0043] It should be noted that the subframe 1 of this embodiment is generally a front subframe. Figure 1 and Figure 2 As shown in , one end of the energy absorbing structure 3 close to the battery pack 2 overlaps with the projection of the battery pack 2 in the front-rear direction of the entire vehicle.

[0044] It can be understood that by providing an energy absorbing structure 3 extending toward the battery pack 2 on the subframe 1, and making one end of the energy absorbing structure 3 close to the battery pack 2 overlap with the projection of the battery pack 2 in the front-rear direction of the whole vehicle, it is convenient to transmit force between the subframe 1 and the battery pack 2 when the vehicle collides, and it is beneficial to improve the energy absorption effect during the collision, and it can also suppress the pulling of the subframe 1 on the rear section of the longitudinal beam and the footwell area, thereby reducing the intrusion of the footwell.

[0045] Of course, the subframe 1 in this embodiment may also be a rear subframe. In addition, it is also possible to make the end of the energy absorbing structure 3 close to the battery pack 2 only partially overlap with the projection of the battery pack 2 in the front-rear direction of the whole vehicle.

[0046] Based on the above overall introduction, as a preferred implementation method, Figure 1 and Figure 2 As shown in , in this embodiment, in the left-right direction of the vehicle, the energy absorbing structure 3 is located in the middle of the subframe 1, and the energy absorbing structure 3 is located at the center line of the vehicle body. It can be expected that by locating the energy absorbing structure 3 in the middle of the subframe 1, it is convenient to arrange, and it is also beneficial to transfer the collision force on the subframe 1 to the battery pack 2, thereby improving the balance of the force on the left and right sides of the vehicle body.

[0047] It should be noted that, generally, the middle of the subframe 1 coincides with the centerline of the vehicle body. Of course, when the middle of the subframe 1 does not coincide with the centerline of the vehicle body, the energy absorbing structure 3 can be arranged in the middle of the subframe 1 or at the centerline of the vehicle body according to the requirements.

[0048] As a preferred implementation method, Figure 2 As shown in FIG. 1 , in this embodiment, a gap 5 is provided between the end of the energy absorbing structure 3 close to the battery pack 2 and the battery pack 2. In this way, when the collision force is large, it can be transmitted to the battery pack 2 via the subframe 1, avoiding direct damage to the installation point of the battery pack 2 in the event of a collision, thereby providing better protection for the battery pack 2. In addition, the size of the gap 5 in this embodiment can be 20 mm.

[0049] As a preferred example, Figure 2 and Figure 6 As shown in , in this embodiment, a connecting frame 9 is provided at one end of the battery pack 2 close to the subframe 1, and an end of the energy absorbing structure 3 close to the battery pack 2 is arranged corresponding to the connecting frame 9 in the front-to-back direction of the vehicle. In addition, an internal longitudinal beam 6 extending along the front-to-back direction of the vehicle is provided inside the battery pack 2, and the internal longitudinal beam 6 is arranged corresponding to the energy absorbing structure 3 in the front-to-back direction of the vehicle. It can be expected that by providing a connecting frame 9 on the battery pack 2 and arranging the connecting frame 9 and the energy absorbing structure 3 in the front-to-back direction, the energy absorbing structure 3 can transmit the collision force to the battery pack 2 through the connecting frame 9, thereby further improving the protection of the battery pack.

[0050] In addition, by providing an internal longitudinal beam 6 in the battery pack 2, the force transmitted to the battery pack 2 by the energy absorption structure 3 is transmitted backward through the internal longitudinal beam 6, so that the battery pack 2 participates in the force transmission of the whole vehicle collision, increases the force transmission channel, and improves the force transmission effect. In addition, the connecting frame 9 can be connected to the cross beam of the vehicle body, so that the collision force transmitted to the connecting frame 9 can be transmitted to the cross beam of the vehicle body, further improving the force transmission effect.

[0051] It is worth noting that in the present embodiment, both a connecting frame 9 is provided on the battery pack 2 and an internal longitudinal beam 6 is provided inside the battery pack 2. This is merely used as a preferred implementation. In addition, it is also possible to choose to only provide a connecting frame 9 on the battery pack 2 or to choose to only provide an internal longitudinal beam 6 inside the battery pack 2.

[0052] In order to facilitate the connection between the energy absorbing structure 3 and the sub-frame 1, a groove 4 is provided on the energy absorbing structure 3, and part of the sub-frame 1 is embedded in the groove 4. When the energy absorbing structure 3 and the sub-frame 1 are connected, the provision of the groove 4 can increase the connection area between the energy absorbing structure 3 and the sub-frame 1, thereby ensuring the connection strength between the two. In addition, the energy absorbing structure 3 and the sub-frame 1 can be connected by welding or other methods commonly used in the prior art.

[0053] As a preferred implementation, in this embodiment, the energy absorption structure 3 includes an energy absorption box, and the energy absorption box is provided with a collapse rib 8. Such a configuration is simple in structure and is conducive to improving the structural strength of the energy absorption structure 3, so as to achieve a better energy absorption effect. Figure 2 As shown in , the energy absorption box is in the shape of a trapezoid with a cross-section that gradually decreases from front to back, and a cavity is formed inside the energy absorption box, which is beneficial to further improve the structural strength and energy absorption effect of the energy absorption box.

[0054] As a preferred implementation method, Figure 2 and Figure 3 and Figure 4 As shown in , in this embodiment, a mounting crossbeam 7 is provided at the rear of the subframe 1, the energy absorbing structure 3 is provided on the mounting crossbeam 7, and an inclined connecting beam 10 is provided between the mounting crossbeam 7 and the threshold beam. It can be understood that by providing the mounting crossbeam 7 and providing the connecting beam 10 between the mounting crossbeam 7 and the threshold beam, the subframe 1 can transmit force to the battery pack 2 and the threshold beam respectively through the energy absorbing structure 3 and the connecting beam 10, which is conducive to realizing multi-channel force transmission and improving the force transmission effect.

[0055] When implementing it, Figure 3 and Figure 6As shown in , the installation beam 7 includes a beam body 701 and extension beams 702 arranged on both sides of the beam body 701, the energy absorption structure 3 is arranged on the beam body 701, and the connecting beam 10 is arranged between the extension beam 702 and the threshold beam. In this way, the collision force transmitted to the subframe 1 can be transmitted to the battery pack 2 via the beam body 701 and the energy absorption structure 3, and can also be transmitted to the threshold beams on both sides via the beam body 701, the extension beam 702 and the connecting beam. In addition, as Figure 3 As shown in , in this embodiment, the extension beams 702 on both sides can be connected to the door sill beams on both sides respectively, so that the sub-frame 1 can be directly transmitted to the door sill beams on both sides through the extension beams 702 on both sides, further ensuring the force transmission effect.

[0056] As a preferred implementation method, Figure 3 and Figure 5 As shown in the figure, in this embodiment, a subframe anti-collision beam 11 is provided at one end of the subframe 1 away from the battery pack 2, and the subframe anti-collision beam 11 is connected to the subframe 1 through subframe energy absorption boxes 12 arranged on the left and right sides. The vehicle body has a body longitudinal beam 13 arranged on the left and right sides, and the ends of the body longitudinal beams 13 on each side are respectively connected to the main energy absorption boxes 14 arranged up and down corresponding to the subframe energy absorption boxes 12 on the same side.

[0057] It can be understood that by providing the sub-frame energy absorbing box 12 and the main energy absorbing box 14 and arranging the sub-frame energy absorbing box 12 and the main energy absorbing box 14 in correspondence with each other, it is beneficial to form an upper and lower two-layer energy absorbing structure 3, thereby improving the energy absorbing effect.

[0058] The vehicle body of the present embodiment is provided with an energy absorbing structure 3 on the subframe 1, which facilitates the force transmission between the subframe 1 and the battery pack 2, improves the energy absorption effect during a collision, and can also suppress the pulling of the subframe 1 on the rear section of the longitudinal beam and the footwell area, thereby reducing the amount of footwell intrusion. In addition, the internal longitudinal beam 6 and the connecting beam 10 are provided, which facilitates the realization of multi-channel force transmission and improves the force transmission effect.

[0059] Embodiment 2

[0060] This embodiment relates to a vehicle having the vehicle body of the first embodiment.

[0061] The vehicle of this embodiment is provided with the body of the vehicle of the first embodiment, which helps to improve the collision safety performance of the entire vehicle.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle body, characterized in that: The vehicle body is provided with a subframe (1) and a battery pack (2); An energy absorbing structure (3) is provided on a side of the subframe (1) close to the battery pack (2); the energy absorbing structure (3) extends toward the side of the battery pack (2); and an end of the energy absorbing structure (3) close to the battery pack (2) at least partially overlaps with a projection of the battery pack (2) in the front-rear direction of the entire vehicle.

2. The vehicle body according to claim 1, characterized in that: In the left-right direction of the vehicle, the energy absorbing structure (3) is located in the middle of the subframe (1); and / or the energy absorbing structure (3) is located at the center line of the vehicle body.

3. The vehicle body according to claim 1, characterized in that: A gap (5) is provided between one end of the energy absorbing structure (3) close to the battery pack (2) and the battery pack (2).

4. The vehicle body according to claim 1, characterized in that: A connecting frame (9) is provided at one end of the battery pack (2) close to the sub-frame (1), and an end of the energy absorbing structure (3) close to the battery pack (2) is arranged corresponding to the connecting frame (9) in the front-rear direction of the vehicle; and / or, The battery pack (2) is provided with an internal longitudinal beam (6) extending in the front-rear direction of the entire vehicle, and the internal longitudinal beam (6) is arranged corresponding to the energy absorption structure (3) in the front-rear direction of the entire vehicle.

5. The vehicle body according to claim 1, characterized in that: The energy absorbing structure (3) comprises an energy absorbing box, on which collapse ribs (8) are provided.

6. The vehicle body according to claim 5, characterized in that: The energy absorbing box is in a trapezoidal shape with a cross section gradually decreasing from front to back, and a cavity is formed inside the energy absorbing box.

7. The vehicle body according to claim 1, characterized in that: A mounting crossbeam (7) is provided at the rear of the sub-frame (1), and the energy absorbing structure (3) is arranged on the mounting crossbeam (7); An inclined connecting beam (10) is provided between the installation cross beam (7) and the threshold beam.

8. The vehicle body according to claim 7, characterized in that: The installation crossbeam (7) comprises a crossbeam body (701) and extension beams (702) arranged on both sides of the crossbeam body (701); The energy absorbing structure (3) is arranged on the cross beam body (701), and the connecting beam (10) is arranged between the extension beam (702) and the threshold beam.

9. The vehicle body according to any one of claims 1 to 8, characterized in that: A subframe anti-collision beam (11) is provided at one end of the subframe (1) away from the battery pack (2), and the subframe anti-collision beam (11) is connected to the subframe (1) via subframe energy absorption boxes (12) arranged on the left and right sides; The vehicle body has vehicle body longitudinal beams (13) arranged on the left and right sides, and the ends of the vehicle body longitudinal beams (13) on each side are respectively connected to main energy absorption boxes (14) arranged in correspondence with the auxiliary frame energy absorption boxes (12) on the same side.

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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