Vehicle body structure and vehicle

Abstract

The utility model provides a vehicle body structure and a vehicle, and belongs to the technical field of automobiles. The vehicle body structure comprises two first front longitudinal beams which are symmetrically arranged left and right, the front ends of the two first front longitudinal beams are connected with the two ends of a front anti-collision beam respectively, and the rear ends of the two first front longitudinal beams are connected with the two ends of a front wall front cross beam respectively; the front ends of the two second front longitudinal beams are fixedly connected with the two ends of the front wall front cross beam respectively, and the rear ends of the two second front longitudinal beams are fixedly connected with the two ends of the front floor cross beam respectively; the two front wall plate reinforcing plates are fixedly connected to the opposite sides of the two front wheel cover inner plates respectively, and the front ends of the front wall plate reinforcing plates are connected with one ends of the front wall front cross beams on the corresponding sides. The front wall plate reinforcing plate is connected with one end of the first front longitudinal beam and one end of the front wall front cross beam on the corresponding side to form a frame structure, so that the force transmission path of front offset collision is improved, the strength of a front vehicle body structure is improved, and the deformation of a vehicle body during offset collision is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and in particular relates to a vehicle body structure and a vehicle. Background Art

[0002] Since pure electric microcars have a short front overhang, there is not enough space for buffering in the event of a frontal offset collision. Therefore, the front body structure needs to be strong enough to meet the collision requirements.

[0003] The current front body structure of a mini car is as follows: Figure 1 As shown, the main force transmission path is not continuous, the lateral structure is redundant, the longitudinal structure is lacking, and its sheet metal structure has the following deficiencies:

[0004] 1) There are three force transmission paths, two horizontal and one vertical, and the body deformation is large in a frontal offset collision;

[0005] 2) No frame structure is formed, and the overall force transmission path is poor;

[0006] 3) The number of parts is large and scattered, resulting in high manufacturing costs. Utility Model Content

[0007] The purpose of the utility model is to solve the problem of large body deformation in frontal offset collision in the above-mentioned prior art, which has two horizontal and one vertical force transmission paths in total, and provides a front body structure and a vehicle, which improves the strength of the front body structure by increasing the longitudinal force transmission path, thereby reducing the deformation of the body in offset collision.

[0008] The utility model is realized by the following technical solutions:

[0009] A first aspect of the present invention provides a vehicle body structure, comprising:

[0010] Two first front longitudinal beams are symmetrically arranged on the left and right, and the front ends of the two first front longitudinal beams are respectively connected to the two ends of the front anti-collision beam, and the rear ends are respectively connected to the two ends of the front cross beam of the front enclosure;

[0011] Two second front longitudinal beams are symmetrically arranged on the left and right, and the front ends of the two second front longitudinal beams are respectively fixedly connected to the two ends of the front enclosure front cross beam, and the rear ends are respectively fixedly connected to the two ends of the front floor cross beam;

[0012] Two front panel reinforcement plates are respectively fixedly connected to the opposite sides of the two front wheel cover inner plates, and the front end of the front panel reinforcement plate is connected to one end of the front cross beam of the front panel on the corresponding side.

[0013] The further improvement of the utility model is:

[0014] The dash panel reinforcement plate includes a dash panel reinforcement plate body, and the upper and lower sides of the dash panel reinforcement plate body are both provided with side edges extending toward the front wheel cover inner plate, and the edge of the side edge is provided with a first flange, which is connected to the front wheel cover inner plate to form a cavity structure between the dash panel reinforcement plate and the front wheel cover inner plate.

[0015] The further improvement of the utility model is:

[0016] A second flange bent outward is provided at the front end of the front dash reinforcing plate body, and the second flange is connected to the front dash front cross beam.

[0017] The further improvement of the utility model is:

[0018] The front cross beam of the front enclosure is a U-shaped cross beam, and the opening of the U-shaped cross beam faces the rear end of the vehicle body structure in the longitudinal direction;

[0019] Both side edges of the front cross beam of the front enclosure are provided with third flanges bent outwards, and the third flanges at both ends of the front cross beam of the front enclosure are respectively connected to the second flanges.

[0020] The further improvement of the utility model is:

[0021] The second front longitudinal beam is provided with a raised connection portion facing the inner side of the vehicle body structure, the two raised connection portions on the second front longitudinal beam are arranged opposite to each other, and the front floor cross beam is connected between the two raised connection portions.

[0022] The further improvement of the utility model is:

[0023] The raised connection portion is a U-shaped structure with an opening facing upward, and two side edges of the U-shaped structure are provided with fourth flanges bent outward for connection with the front floor crossbeam.

[0024] The further improvement of the utility model is:

[0025] The front floor cross beam is a U-shaped cross beam with an opening facing upward, and fifth flanges bent outward are provided on two side edges of the U-shaped structural cross beam. One end of the front floor cross beam is stuck in the U-shaped structure of the raised connecting part of the second front longitudinal beam on the corresponding side, and the fifth flange is overlapped and connected to the fourth flange.

[0026] The further improvement of the utility model is:

[0027] A central channel is overlapped on the front floor cross beam along the longitudinal direction of the vehicle body structure.

[0028] The further improvement of the utility model is:

[0029] The central channel is a U-shaped longitudinal beam with an opening facing downward, and the two side walls of the U-shaped longitudinal beam are provided with flanges bent outward, the front end of the central channel overlaps the front floor crossbeam, and the flange is fixedly connected to the fourth flange.

[0030] A second aspect of the utility model provides a vehicle, comprising the above-mentioned vehicle body structure.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] The utility model forms a frame structure by adding two front dash panel reinforcement plates, and the front ends of the two front dash panel reinforcement plates are respectively connected to the first front longitudinal beam and one end of the front dash front cross beam on the corresponding sides, thereby improving the longitudinal force transmission path of the frontal offset collision, so that the longitudinal force of the collision can be transmitted to the A-pillar area, the strength of the front body structure is improved, and the deformation of the body during the offset collision is reduced, thereby protecting the safety of people in the cockpit.

[0033] The utility model has a central channel overlapped along the longitudinal direction of the vehicle body structure on the front floor cross beam, which increases the longitudinal force transmission path, forms two horizontal and three vertical force transmission paths, a total of five force transmission paths, improves the strength of the front vehicle body structure, reduces the deformation of the vehicle body during offset collision, and thus protects the safety of people in the cockpit.

[0034] The utility model provides a raised connection portion facing the inner side of the vehicle body structure on the second front longitudinal beam, the two raised connection portions of the second front longitudinal beams are arranged opposite to each other, and the two raised connection portions are directly connected to the front floor cross beam, thereby reducing the intermediate connection bracket, reducing the cost, and also achieving a lightweight effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the front body structure of an existing mini car;

[0036] Figure 2 It is a schematic diagram of a vehicle body structure provided by the utility model;

[0037] Figure 3 1. It is a schematic diagram of the connection structure between the dash panel reinforcement plate and the dash panel front cross beam;

[0038] Figure 4 is a schematic diagram of the connection structure between the second front longitudinal beam and the front floor cross beam;

[0039] Figure 5 It is a principle diagram of the force transmission path when the vehicle body structure of the utility model is in an offset collision.

[0040] In the figure,

[0041] 1. Front anti-collision beam;

[0042] 2. First front longitudinal beam;

[0043] 3. Front crossbeam of front enclosure, 301, third flange;

[0044] 4. second front longitudinal beam, 401. raised connection portion, 402. fourth flange;

[0045] 5. a front panel reinforcement plate, 501, a front panel reinforcement plate body, 502, a side edge, 503, a first flange, 504, a second flange;

[0046] 6. Front wheel housing inner panel;

[0047] 7. Front floor beam, 701, fifth flange;

[0048] 8. Central channel. DETAILED DESCRIPTION

[0049] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0050] The utility model provides a vehicle body structure, such as Figure 2 As shown, including:

[0051] Two first front longitudinal beams 2 are symmetrically arranged, and the front ends of the two first front longitudinal beams 2 are respectively fixedly connected to the two ends of the front anti-collision beam 1, and the rear ends are respectively connected to the two ends of the front cross beam 3 of the front enclosure;

[0052] Two second front longitudinal beams 4 are symmetrically arranged, and the front ends of the two second front longitudinal beams 4 are respectively fixedly connected to the two ends of the front enclosure front cross beam 3, and the rear ends are respectively fixedly connected to the two ends of the front floor cross beam 7;

[0053] The two dash panel reinforcement plates 5 are respectively fixedly connected to the opposite sides of the two front wheel housing inner plates 6, and the front ends of the dash panel reinforcement plates 5 are connected to one end of the dash front cross beam 3 on the corresponding side.

[0054] The utility model forms a frame structure by adding two dash panel reinforcement plates 5, and the front ends of the two dash panel reinforcement plates 5 are respectively connected to the first front longitudinal beam 2 and one end of the dash front cross beam 3 on the corresponding sides, thereby improving the longitudinal force transmission path of the frontal offset collision, so that the longitudinal force of the collision can be transmitted to the A-pillar area, the strength of the front body structure is improved, and the deformation of the body during the offset collision is reduced, thereby protecting the safety of people in the cockpit.

[0055] As a preferred embodiment of the present invention, Figure 3As shown, the dash panel reinforcement plate 5 includes a dash panel reinforcement plate body 501, and the upper and lower sides of the dash panel reinforcement plate body 501 are both provided with inward side edges 502, and the edge of the side edge 502 is provided with a first flange 503, and the first flange 503 is spot-welded to the front wheel cover inner plate 6, so that a cavity structure is formed between the dash panel reinforcement plate 5 and the front wheel cover inner plate 6, and during the offset collision process, the impact resistance of the dash panel reinforcement plate 5 can be improved, thereby effectively improving the offset collision performance of the car, achieving the purpose of reducing the deformation of the cockpit and reducing the harm to the cockpit occupants.

[0056] The front end of the dash panel reinforcement plate body 501 is provided with a second flange 504 bent outwards. The second flange 504 is spot-welded to the dash front cross beam 3 to support the dash front cross beam 3 .

[0057] As a preferred embodiment of the utility model, the front cross beam 3 of the front enclosure is a U-shaped cross beam, and the opening of the U-shaped cross beam faces the rear end of the vehicle body structure in the longitudinal direction. Both side edges of the front cross beam 3 of the front enclosure are provided with third flanges 301 bent outward, and the third flanges 301 at both ends of the front cross beam 3 of the front enclosure are respectively connected to the second flanges 504 by spot welding.

[0058] The two first front longitudinal beams 2 are respectively connected to the bottom surface of the U-shaped structure of the front enclosure front cross beam 3 by spot welding.

[0059] In the utility model, the front cross beam 3 of the front enclosure is designed to be a U-shaped structural cross beam with an opening toward the rear end of the vehicle body structure in the longitudinal direction. During an offset collision, the impact resistance and strength of the front cross beam 3 of the front enclosure can be improved, thereby effectively improving the offset collision performance of the automobile, achieving the purpose of reducing deformation of the cockpit and reducing damage to the cockpit occupants.

[0060] As a preferred embodiment of the present invention, the front end of the second front longitudinal beam 4 is connected to the front wall front cross beam 3, and the rear end is connected to the front vehicle body side panel. Figure 4 As shown, the second front longitudinal beam 4 is provided with a raised connection portion 401 facing the inner side of the vehicle body structure, the two raised connection portions 401 of the second front longitudinal beam 4 are arranged opposite to each other, and the front floor cross beam 7 is connected between the two raised connection portions 401 .

[0061] The raised connecting portion 401 is a U-shaped structure with an opening facing upward, which is used to clamp one end of the front floor cross beam 7 in the U-shaped structure of the raised connecting portion 401, thereby realizing a direct connection between the second front longitudinal beam 4 and the front floor cross beam 7, reducing intermediate connecting brackets, reducing costs, and also achieving a lightweight effect.

[0062] The opening upward refers to a direction toward the upper part of the vehicle body structure.

[0063] The two side edges of the U-shaped structure are provided with a fourth flange 402 bent outwards for spot welding with the front floor cross beam 7. During an offset collision, part of the external force can be transmitted to the front floor cross beam 7, thereby effectively improving the offset collision performance of the automobile and achieving the purpose of reducing deformation of the cockpit and reducing damage to the cockpit occupants.

[0064] In the present invention, the second front longitudinal beam 4 is designed as an integrally formed structure, which is directly connected to the front floor cross beam 7, thereby reducing the intermediate connecting brackets, reducing the cost, and also achieving a lightweight effect.

[0065] As a preferred embodiment of the utility model, the front floor cross beam 7 is a U-shaped cross beam with an opening facing upward, and a fifth flange 701 bent outward is provided on the two side edges of the U-shaped structural cross beam, one end of the front floor cross beam 7 is stuck in the U-shaped structure of the raised connecting portion 401 of the second front longitudinal beam 4 on the corresponding side, and the fifth flange 701 is overlapped on the fourth flange 402 and connected by spot welding, so that the second front longitudinal beam 4 is directly connected to the front floor cross beam 7, reducing the intermediate connecting bracket, reducing the cost, and also achieving the effect of lightweight.

[0066] In the utility model, the front floor cross beam 7 is designed as a U-shaped cross beam with an opening facing upward. During an offset collision, the impact resistance and strength of the front floor cross beam 7 can be improved, thereby effectively improving the offset collision performance of the automobile, achieving the purpose of reducing deformation of the cockpit and reducing damage to the cockpit occupants.

[0067] As a preferred embodiment of the utility model, a central channel 8 is overlapped on the front floor cross beam 7 along the longitudinal direction of the vehicle body structure to increase the longitudinal force transmission path, forming two horizontal and three vertical force transmission paths, a total of five force transmission paths, thereby improving the strength of the front vehicle body structure and reducing the deformation of the vehicle body during offset collision, thereby protecting the safety of people in the cockpit.

[0068] The central channel 8 is a U-shaped structural longitudinal beam with an opening facing downward, and the two side walls of the U-shaped structural longitudinal beam are provided with flanges bent outwards. The front end of the central channel 8 is overlapped on the front floor crossbeam 7, and the flange is connected to the fourth flange 402 by spot welding to increase the overall structural strength, and the rear end is connected to the rear lower body.

[0069] The opening is downwards refers to a direction toward the bottom of the vehicle body structure.

[0070] In the utility model, the central channel 8 is designed as a U-shaped structural longitudinal beam with an opening facing downward. During an offset collision, the impact resistance and strength of the central channel 8 can be improved, thereby effectively improving the offset collision performance of the car and achieving the purpose of reducing deformation of the cockpit and reducing damage to the cockpit occupants.

[0071] like Figure 5 As shown, when the vehicle encounters a head-on offset collision, the external force is transmitted to the front dash front cross beam 3, the dash panel reinforcement plate 5 and the second front longitudinal beam 4 respectively through the first front longitudinal beam 2. Since the second front longitudinal beam 4 is connected to the front floor cross beam 7, part of the force transmitted to the second front longitudinal beam 4 is transmitted to the front floor cross beam 7, and then transmitted to the central channel 8, forming two horizontal and three vertical force transmission paths, a total of five force transmission paths, thereby improving the strength of the front body structure and reducing the deformation of the body during an offset collision, thereby protecting the safety of people in the cockpit.

[0072] At present, after a new car model is equipped with the body structure of the utility model, compared with the original model, various indicators of frontal offset collision are improved (see Table 1); the number and weight of parts are reduced, achieving the goal of lightweight design.

[0073] Table 1

[0074]

[0075] It can be seen from Table 1 that, compared with the original model, the new model equipped with the vehicle body structure of the present invention has significantly reduced intrusion into the various parts of the vehicle structure during a frontal offset collision, which reduces the deformation of the vehicle body during an offset collision, thereby protecting the safety of the people in the cockpit.

[0076] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0078] The above technical solution is only one implementation method of the utility model. For those skilled in the art, it is easy to make various types of improvements or modifications based on the principles disclosed in the utility model, and it is not limited to the technical solution described in the above specific embodiments of the utility model. Therefore, the above description is only preferred and does not have a restrictive meaning.

Claims

1. A vehicle body structure, characterized in that: include: Two first front longitudinal beams are symmetrically arranged on the left and right, and the front ends of the two first front longitudinal beams are respectively connected to the two ends of the front anti-collision beam, and the rear ends are respectively connected to the two ends of the front cross beam of the front enclosure; Two second front longitudinal beams are symmetrically arranged on the left and right, and the front ends of the two second front longitudinal beams are respectively fixedly connected to the two ends of the front enclosure front cross beam, and the rear ends are respectively fixedly connected to the two ends of the front floor cross beam; Two front panel reinforcement plates are respectively fixedly connected to the opposite sides of the two front wheel cover inner plates, and the front end of the front panel reinforcement plate is connected to one end of the front cross beam of the front panel on the corresponding side.

2. The vehicle body structure according to claim 1, characterized in that: The dash panel reinforcement plate includes a dash panel reinforcement plate body, and the upper and lower sides of the dash panel reinforcement plate body are both provided with side edges extending toward the front wheel cover inner plate, and the edge of the side edge is provided with a first flange, which is connected to the front wheel cover inner plate to form a cavity structure between the dash panel reinforcement plate and the front wheel cover inner plate.

3. The vehicle body structure according to claim 2, characterized in that: A second flange bent outward is provided at the front end of the front dash reinforcing plate body, and the second flange is connected to the front dash front cross beam.

4. The vehicle body structure according to claim 3, characterized in that: The front cross beam of the front enclosure is a U-shaped cross beam, and the opening of the U-shaped cross beam faces the rear end of the vehicle body structure in the longitudinal direction; Both side edges of the front cross beam of the front enclosure are provided with third flanges bent outwards, and the third flanges at both ends of the front cross beam of the front enclosure are respectively connected to the second flanges.

5. The vehicle body structure according to claim 1, characterized in that: The second front longitudinal beam is provided with a raised connection portion facing the inner side of the vehicle body structure, the two raised connection portions on the second front longitudinal beam are arranged opposite to each other, and the front floor cross beam is connected between the two raised connection portions.

6. The vehicle body structure according to claim 5, characterized in that: The raised connection portion is a U-shaped structure with an opening facing upward, and two side edges of the U-shaped structure are provided with fourth flanges bent outward for connection with the front floor crossbeam.

7. The vehicle body structure according to claim 6, characterized in that: The front floor cross beam is a U-shaped cross beam with an opening facing upward, and fifth flanges bent outward are provided on two side edges of the U-shaped structural cross beam. One end of the front floor cross beam is stuck in the U-shaped structure of the raised connecting part of the second front longitudinal beam on the corresponding side, and the fifth flange is overlapped and connected to the fourth flange.

8. The vehicle body structure according to claim 1, characterized in that: A central channel is overlapped on the front floor cross beam along the longitudinal direction of the vehicle body structure.

9. The vehicle body structure according to claim 8, characterized in that: The central channel is a U-shaped longitudinal beam with an opening facing downward, and the two side walls of the U-shaped longitudinal beam are provided with flanges bent outward, the front end of the central channel overlaps the front floor crossbeam, and the flange is fixedly connected to the fourth flange.

10. A vehicle, characterized in that: Comprising a vehicle body structure as described in any one of claims 1-9.

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