Vehicle body and vehicle

Abstract

The vehicle body comprises a cabin, threshold beams are arranged on the two sides of the cabin in the left-right direction, and a middle channel beam is arranged in the middle of the cabin; the number of the front longitudinal beams is two, the two front longitudinal beams are arranged on the front side of the cabin and are mutually spaced in the left-right direction, each front longitudinal beam comprises a longitudinal beam main body and a longitudinal beam rear section assembly, each longitudinal beam rear section assembly is provided with a front connecting end, a first rear connecting end and a second rear connecting end, the front connecting ends are connected with the rear ends of the longitudinal beam main bodies, and the second connecting ends are connected with the rear ends of the longitudinal beam main bodies. The first rear connecting end is connected with the middle channel beam, and the second rear connecting end is connected with the doorsill beam. Therefore, the longitudinal beam rear section assembly is provided with the three connecting ends, force transmitted to the front connecting end is evenly decomposed to the other two connecting ends and transmitted to the middle channel beam and the doorsill beam which are connected with the two connecting ends, the force transmission path and the vehicle body space can be optimized, the structural strength can be guaranteed, in addition, the number of parts can be reduced, and the cost can be reduced. The vehicle body weight is reduced.

Description

Technical Field

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

[0002] With the development of science and technology and the improvement of users' living standards, vehicles have become an indispensable means of transportation for people. The body is an important part of the vehicle structure, which can absorb impact force, ensure the safety of passengers, and provide installation space and safety protection for other components.

[0003] In the related art, the rear section assembly structure of the longitudinal beam is welded from a plurality of high-strength steel parts. The structural decomposition of the part on the rear section assembly of the longitudinal beam used to transmit the decomposition force is discontinuous, and there are stress concentration points at the position of the decomposition force, which is not conducive to the transmission and buffering of the impact force. In addition, the number of parts is large, the development cost is high, and the accuracy of the assembly parts is difficult to control. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a vehicle body, which has a better force transmission effect, a smaller number of parts, and a lower development cost.

[0005] The utility model further provides a vehicle.

[0006] According to the vehicle body of the utility model, it includes: a cockpit, wherein door sill beams are arranged on both sides of the cockpit in the left and right directions, and an intermediate channel beam is arranged in the middle part of the cockpit in the left and right directions; a front longitudinal beam, wherein there are two front longitudinal beams, and the two front longitudinal beams are arranged on the front side of the cockpit and are spaced apart from each other in the left and right directions, the front longitudinal beam includes a longitudinal beam main body and a longitudinal beam rear section assembly, the longitudinal beam rear section assembly has a front connecting end, a first rear connecting end and a second rear connecting end, the front connecting end is connected to the rear end of the longitudinal beam main body, the first rear connecting end and the second rear connecting end are both spaced apart on the rear side of the front connecting end, the first rear connecting end and the second rear connecting end are spaced apart from each other in the left and right directions, the first rear connecting end is connected to the intermediate channel beam, and the second rear connecting end is connected to the door sill beam.

[0007] Therefore, by setting the rear section of the longitudinal beam assembly to three connection ends, the force transmitted to the front connection end can be evenly decomposed to the other two connection ends and transmitted to the respectively connected middle channel beam and door sill beam. This can not only optimize the force transmission path and body space, but also ensure structural strength. In addition, it can also reduce the number of parts and reduce the weight of the body.

[0008] In some examples of the present invention, the front connecting end, the first rear connecting end and the second rear connecting end are sequentially connected to form a triangle.

[0009] In some examples of the present invention, a first energy absorption cavity is formed inside the rear section assembly of the longitudinal beam, the first energy absorption cavity is triangular, and the front connecting end, the first rear connecting end and the second rear connecting end are respectively located at the three end corners of the first energy absorption cavity.

[0010] In some examples of the present invention, energy-absorbing longitudinal beams are arranged on both sides of the middle channel beam in the left and right directions, a second energy-absorbing cavity is formed between the energy-absorbing longitudinal beam and the middle channel beam, and the first rear connecting end is connected to the second energy-absorbing cavity.

[0011] In some examples of the present invention, a third energy absorbing cavity is formed in the door sill beam, and the second rear connecting end is communicated with the third energy absorbing cavity.

[0012] In some examples of the present invention, the longitudinal beam assembly includes a top plate, a first side plate, a second side plate and a third side plate, and the first side plate, the second side plate and the third side plate are all connected to the circumferential edge of the top plate and are all bent relative to the top plate to form the first energy absorption cavity.

[0013] In some examples of the present invention, the first side panel is located between the first rear connecting end and the front connecting end, the second side panel is located between the second rear connecting end and the front connecting end, the third side panel is located between the first rear connecting end and the second rear connecting end, and at least one of the first side panel, the second side panel and the third side panel is arc-shaped.

[0014] In some examples of the present utility model, the rear section assembly of the longitudinal beam includes a front longitudinal beam rear section body, a front subframe rear mounting bracket and a front longitudinal beam rear section inner plate connecting plate, the front connecting end, the first rear connecting end and the second rear connecting end are all arranged on the front longitudinal beam rear section body, a first energy absorption cavity is formed inside the front longitudinal beam rear section body, the front subframe rear mounting bracket is arranged in the first energy absorption cavity, and the front longitudinal beam rear section inner plate connecting plate is connected to the first rear connecting end or the second rear connecting end.

[0015] In some examples of the present invention, the material of the rear section of the front longitudinal beam is hot-formed steel, the material of the front subframe rear mounting bracket and the front longitudinal beam rear section inner plate connecting plate are both high-strength steel, and the front subframe rear mounting bracket and the front longitudinal beam rear section inner plate connecting plate are both welded and fixed to the rear section of the front longitudinal beam.

[0016] A vehicle according to an embodiment of the utility model includes: the vehicle body described above.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a vehicle body according to an embodiment of the utility model;

[0020] Figure 2 is a partial schematic diagram of a vehicle body according to an embodiment of the utility model;

[0021] Figure 3 is a schematic diagram of a front longitudinal beam according to an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of a longitudinal beam rear section assembly according to an embodiment of the utility model.

[0023] Reference numerals:

[0024] 100. Car body;

[0025] 10. Cockpit; 101. Door sill beam; 102. Middle channel beam;

[0026] 20, front longitudinal beam; 201, longitudinal beam body; 202, longitudinal beam rear section assembly; 2021, front connecting end; 2022, first rear connecting end; 2023, second rear connecting end; 2024, top plate; 2025, first side plate; 2026, second side plate; 2027, third side plate; 2028, front longitudinal beam rear section body; 2029, front subframe rear mounting bracket; 2030, front longitudinal beam rear section inner plate connecting plate;

[0027] 30, first energy absorption cavity; 40, second energy absorption cavity; 50, third energy absorption cavity;

[0028] 60. Energy absorbing longitudinal beam. DETAILED DESCRIPTION

[0029] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0030] Reference below Figure 1-Figure 4 A vehicle body 100 according to an embodiment of the present invention is described, and the vehicle body 100 may be applied to a vehicle.

[0031] Combination Figure 1-Figure 4As shown, the vehicle body 100 according to the utility model can mainly include: a cabin 10 and a front longitudinal beam 20. Among them, the cabin 10, the two sides of the cabin 10 in the left and right directions are provided with sill beams 101, and the middle part of the cabin 10 in the left and right directions is provided with a middle channel beam 102, so that when the cabin 10 is partially hit, the sill beam 101 and the middle channel beam 102 can absorb and transmit part of the impact force, which can improve the strength of the cabin 10, prevent the cabin 10 from being deformed when hit, and thus protect the passengers in the car.

[0032] There are two front longitudinal beams 20, both of which are arranged at the front side of the cockpit 10 and spaced apart from each other in the left-right direction. The front longitudinal beam 20 includes a longitudinal beam body 201 and a longitudinal beam rear section assembly 202, and the longitudinal beam rear section assembly 202 has a front connecting end 2021, a first rear connecting end 2022 and a second rear connecting end 2023, the front connecting end 2021 is connected to the rear end of the longitudinal beam body 201, the first rear connecting end 2022 and the second rear connecting end 2023 are both spaced apart at the rear side of the front connecting end 2021, the first rear connecting end 2022 and the second rear connecting end 2023 are spaced apart from each other in the left-right direction, the first rear connecting end 2022 is connected to the middle channel beam 102, and the second rear connecting end 2023 is connected to the door sill beam 101. Specifically, the front connecting end 2021 is connected to the rear end of the longitudinal beam body 201, the first rear connecting end 2022 is connected to the middle channel beam 102, and the second rear connecting end 2023 is connected to the sill beam 101. When the longitudinal beam body 201 is subjected to external force, the force can be divided into two parts through the front connecting end 2021 of the longitudinal beam rear section assembly 202 and transmitted to the first rear connecting end 2022 and the second rear connecting end 2023 respectively, and then the force is transmitted to the middle channel beam 102 and the sill beam 101 respectively. This can not only ensure the continuous transmission of force and optimize the force transmission path, but also decompose the concentrated force and reasonably distribute the stress conditions of various parts of the vehicle body 100 structure, thereby improving the stability of the structure.

[0033] Therefore, by setting the rear section assembly 202 of the longitudinal beam to three connection ends, the force transmitted to the front connection end 2021 is evenly decomposed to the other two connection ends, and transmitted to the respectively connected middle channel beam 102 and the door sill beam 101. This can not only optimize the force transmission path and the body 100 space, but also ensure the structural strength. In addition, it can also reduce the number of parts and reduce the weight of the body 100.

[0034] Combination Figure 2 and Figure 3As shown, the front connection end 2021, the first rear connection end 2022 and the second rear connection end 2023 are sequentially connected to form a triangle. Specifically, by sequentially connecting the front connection end 2021, the first rear connection end 2022 and the second rear connection end 2023 to form a triangle, the force can be decomposed from one end point to the other two end points, the concentrated force can be decomposed, and the force transmission path can be optimized. In addition, the stability of the triangular structure itself simplifies its structure, thereby reducing the number of parts, optimizing the space of the vehicle body 100, and avoiding the problem that the vehicle body 100 cannot be installed with a large battery pack. Further, the stability and lightness of the structure can be improved.

[0035] In some embodiments of the present invention, the triangle formed by sequentially connecting the front connecting end 2021 , the first rear connecting end 2022 , and the second rear connecting end 2023 may be an isosceles triangle.

[0036] Combination Figure 1 , Figure 2 and Figure 3 As shown, a first energy absorption cavity 30 is formed inside the longitudinal beam rear section assembly 202. The first energy absorption cavity 30 is triangular in shape, and the front connection end 2021, the first rear connection end 2022, and the second rear connection end 2023 are respectively located at the three end corners of the first energy absorption cavity 30. Specifically, by sequentially connecting the front connection end 2021, the first rear connection end 2022, and the second rear connection end 2023, a first energy absorption cavity 30 with a triangular structure is formed inside the longitudinal beam rear section assembly 202. The cavity has a certain collapse space and energy absorption function, and has a buffering effect on the impact force, which can prevent the impact force from directly acting on the vehicle body 100 and causing damage to the vehicle body 100, and can improve the safety performance of the vehicle.

[0037] Combination Figure 1 and Figure 2 As shown, energy absorbing longitudinal beams 60 are arranged on both sides of the middle channel beam 102 in the left and right directions, a second energy absorbing cavity 40 is formed between the energy absorbing longitudinal beam 60 and the middle channel beam 102, and the first rear connecting end 2022 is connected to the second energy absorbing cavity 40. Specifically, by arranging the energy absorbing longitudinal beams 60 on both sides of the middle channel beam 102 in the left and right directions, a second energy absorbing cavity 40 is formed between the energy absorbing longitudinal beam 60 and the middle channel beam 102, so that the force transmitted from the first energy absorbing cavity 30 can be buffered for a second time, the buffering effect of the structure of the vehicle body 100 on the force can be enhanced, and the rigidity of the structure of the vehicle body 100 can be improved. In addition, the first rear connecting end 2022 is connected to the second energy absorbing cavity 40, so that a part of the force transmitted to the first rear connecting end 2022 can be transmitted to the second energy absorbing cavity 40, the force transmitted from the first rear connecting end 2022 to the middle channel beam 102 can be reduced, and the deformation of the middle channel beam 102 due to the large force can be avoided, thereby improving the stability of the structure of the vehicle body 100.

[0038] Combination Figure 1 and Figure 2 As shown, a third energy absorption cavity 50 is formed in the sill beam 101, and the second rear connecting end 2023 is connected to the third energy absorption cavity 50. Specifically, by forming the third energy absorption cavity 50 in the sill beam 101, the force transmitted from the first energy absorption cavity 30 can be buffered for a second time, which can enhance the buffering effect of the vehicle body 100 structure on the force and improve the rigidity of the vehicle body 100 structure. In addition, the second rear connecting end 2023 is connected to the third energy absorption cavity 50, so that a part of the force transmitted to the second rear connecting end 2023 can be absorbed by the third energy absorption cavity 50, so that the force received by the second rear connecting end 2023 can be dispersed and transmitted, with a part transmitted to the second energy absorption cavity 40 and a part transmitted to the sill beam 101, so as to avoid deformation of the sill beam 101 due to the large force, thereby improving the stability of the vehicle body 100 structure.

[0039] Combination Figure 2 , Figure 3 and Figure 4 As shown, the longitudinal beam rear section assembly 202 includes a top plate 2024, a first side plate 2025, a second side plate 2026 and a third side plate 2027. The first side plate 2025, the second side plate 2026 and the third side plate 2027 are all connected to the circumferential edge of the top plate 2024 and are all bent relative to the top plate 2024 to form a first energy absorption cavity 30. Specifically, the first side plate 2025, the second side plate 2026 and the third side plate 2027 are all connected to the circumferential edge of the top plate 2024 and are all bent relative to the top plate 2024 to form the first energy absorption cavity 30, which can not only buffer the impact force and improve the stability of the structure, but also simplify the structure, reduce the number of parts, and reduce the development cost of the whole vehicle.

[0040] Combination Figure 2 , Figure 3 and Figure 4As shown, the first side panel 2025 is located between the first rear connection end 2022 and the front connection end 2021, the second side panel 2026 is located between the second rear connection end 2023 and the front connection end 2021, the third side panel 2027 is located between the first rear connection end 2022 and the second rear connection end 2023, and at least one of the first side panel 2025, the second side panel 2026 and the third side panel 2027 is arc-shaped. Specifically, the first rear connecting end 2022 and the second rear connecting end 2023 are respectively connected to the front connecting end 2021 through the first side panel 2025 and the second side panel 2026. This not only allows the force to be transmitted along the plate to ensure the force transmission path of the structure, but also allows the force concentrated on the front connecting end 2021 to be decomposed through the first side panel 2025 and the second side panel 2026 and transmitted to the first rear connecting end 2022 and the second rear connecting end 2023, thereby meeting the stress strength of each part of the structure of the vehicle body 100. Furthermore, by connecting the three ends through the first side panel 2025, the second side panel 2026 and the third side panel 2027, the strength and rigidity of the structure can be improved.

[0041] In some embodiments of the present invention, at least one of the first side panel 2025, the second side panel 2026 and the third side panel 2027 is arc-shaped, so that the stress of each side panel can be evenly distributed, and the force can be prevented from being subjected to sharp resistance during the transmission process, causing the side panels to break at the turning point, thereby ensuring the continuous transmission of force and improving the stability of the structure.

[0042] Combination Figure 2 , Figure 3 and Figure 4 As shown, the longitudinal beam rear section assembly 202 includes a front longitudinal beam rear section body 2028, a front subframe rear mounting bracket 2029 and a front longitudinal beam rear section inner plate connecting plate 2030, the front connecting end 2021, the first rear connecting end 2022 and the second rear connecting end 2023 are all arranged on the front longitudinal beam rear section body 2028, a first energy absorbing cavity 30 is formed inside the front longitudinal beam rear section body 2028, the front subframe rear mounting bracket 2029 is arranged in the first energy absorbing cavity 30, and the front longitudinal beam rear section inner plate connecting plate 2030 is connected to the first rear connecting end 2022 or the second rear connecting end 2023. Specifically, by setting the front subframe rear mounting bracket 2029 in the first energy absorbing cavity 30, the front subframe rear mounting bracket 2029 is located above the top plate 2024, and the front longitudinal beam rear section inner plate connecting plate 2030 is connected to the first rear connecting end 2022 or the second rear connecting end 2023, not only can the rigidity of the first energy absorbing cavity 30 be increased, but also the firmness of the front longitudinal beam rear section inner plate connecting plate 2030 and the second rear connecting end 2023 can be ensured, thereby improving the rigidity and stability of the longitudinal beam rear section assembly 202.

[0043] Combination Figure 2 , Figure 3 and Figure 4 As shown, the material of the front longitudinal beam rear section body 2028 is hot-formed steel, the material of the front sub-frame rear mounting bracket 2029 and the front longitudinal beam rear section inner plate connecting plate 2030 are both high-strength steel, and the front sub-frame rear mounting bracket 2029 and the front longitudinal beam rear section inner plate connecting plate 2030 are both welded and fixed to the front longitudinal beam rear section body 2028. Specifically, the material of the front longitudinal beam rear section body 2028 is hot-formed steel, and the material of the front sub-frame rear mounting bracket 2029 and the front longitudinal beam rear section inner plate connecting plate 2030 are both high-strength steel, which can not only ensure that the structural strength meets the requirements of the vehicle collision performance, but also achieve the requirements of lightweight, and can reduce the development cost. In addition, the front sub-frame rear mounting bracket 2029 and the front longitudinal beam rear section inner plate connecting plate 2030 are both welded and fixed to the front longitudinal beam rear section body 2028, which can make the connection between the structures more compact, and can prevent the longitudinal beam rear section assembly 202 from loosening inside, thereby improving the stability of the structure.

[0044] The vehicle according to the utility model may mainly include: the above-mentioned vehicle body 100. Specifically, the structure of the vehicle body 100 has a better force transmission effect, a smaller number of parts, and a more stable structure. Applying the vehicle body 100 to the vehicle can effectively optimize the space of the vehicle body 100, reduce the weight of the vehicle body 100, and improve the safety performance of the vehicle and the user experience.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle body, characterized in that: include: A cockpit, wherein sill beams are arranged on both sides of the cockpit in the left and right directions, and a middle channel beam is arranged in the middle of the cockpit in the left and right directions; A front longitudinal beam, wherein there are two front longitudinal beams, both of which are arranged at the front side of the cabin and spaced apart from each other in the left-right direction, the front longitudinal beam comprises a longitudinal beam main body and a longitudinal beam rear section assembly, the longitudinal beam rear section assembly comprises a front connecting end, a first rear connecting end and a second rear connecting end, the front connecting end is connected to the rear end of the longitudinal beam main body, the first rear connecting end and the second rear connecting end are both spaced apart from each other at the rear side of the front connecting end, the first rear connecting end and the second rear connecting end are spaced apart from each other in the left-right direction, the first rear connecting end is connected to the middle channel beam, and the second rear connecting end is connected to the door sill beam.

2. The vehicle body according to claim 1, characterized in that: The front connecting end, the first rear connecting end and the second rear connecting end are sequentially connected to form a triangle.

3. The vehicle body according to claim 2, characterized in that: A first energy absorbing cavity is formed inside the rear section assembly of the longitudinal beam. The first energy absorbing cavity is triangular in shape. The front connecting end, the first rear connecting end and the second rear connecting end are respectively located at three end corners of the first energy absorbing cavity.

4. The vehicle body according to claim 3, characterized in that: Energy-absorbing longitudinal beams are arranged on both sides of the middle channel beam in the left and right directions, a second energy-absorbing cavity is formed between the energy-absorbing longitudinal beam and the middle channel beam, and the first rear connecting end is connected to the second energy-absorbing cavity.

5. The vehicle body according to claim 3, characterized in that: A third energy absorbing cavity is formed in the door sill beam, and the second rear connecting end is communicated with the third energy absorbing cavity.

6. The vehicle body according to claim 3, characterized in that: The rear section assembly of the longitudinal beam includes a top plate, a first side plate, a second side plate and a third side plate. The first side plate, the second side plate and the third side plate are all connected to the circumferential edge of the top plate and are all bent relative to the top plate to form the first energy absorption cavity.

7. The vehicle body according to claim 6, characterized in that The first side panel is located between the first rear connecting end and the front connecting end, the second side panel is located between the second rear connecting end and the front connecting end, the third side panel is located between the first rear connecting end and the second rear connecting end, and at least one of the first side panel, the second side panel and the third side panel is arc-shaped.

8. The vehicle body according to claim 1, characterized in that The longitudinal beam rear section assembly includes a front longitudinal beam rear section body, a front subframe rear mounting bracket and a front longitudinal beam rear section inner plate connecting plate, the front connecting end, the first rear connecting end and the second rear connecting end are all arranged on the front longitudinal beam rear section body, a first energy absorbing cavity is formed inside the front longitudinal beam rear section body, the front subframe rear mounting bracket is arranged in the first energy absorbing cavity, and the front longitudinal beam rear section inner plate connecting plate is connected to the first rear connecting end or the second rear connecting end.

9. The vehicle body according to claim 8, characterized in that The material of the rear section body of the front longitudinal beam is hot-formed steel, the material of the front subframe rear mounting bracket and the front longitudinal beam rear section inner plate connecting plate are both high-strength steel, and the front subframe rear mounting bracket and the front longitudinal beam rear section inner plate connecting plate are both welded and fixed to the rear section body of the front longitudinal beam.

10. A vehicle, characterized in that: include: The vehicle body according to any one of claims 1 to 9.

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