Vehicle body structure and vehicle

Abstract

The utility model relates to the field of vehicles, and discloses a vehicle body structure and a vehicle, the vehicle body structure comprises a vehicle column A and a doorsill beam, the bottom of the vehicle column A is provided with a first step part, the top of the doorsill beam is provided with a second step part which is in lap joint fit with the first step part, and the doorsill beam is provided with a third step part. A connecting part extending towards the doorsill beam is further arranged at the bottom of the vehicle A column, and the connecting part is connected with the side wall of the doorsill beam. The vehicle A column is connected with the doorsill beam through the first step part and the connecting part, so that the connecting strength of the vehicle A column and the doorsill beam is increased, the strength of the doorsill beam is not weakened, the connecting position of the vehicle A column and the doorsill beam is not prone to cracking when the vehicle A column and the doorsill beam are subjected to head-on collision, the performance requirements of the working conditions of head-on collision and side collision are met at the same time, and the service life of the vehicle A column is prolonged. And the longitudinal bending rigidity and torsional rigidity of the vehicle body are also improved.

Description

Technical Field

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

[0002] The A-pillar area of a vehicle is a key component of the vehicle body frame and also a key load-bearing component of the vehicle body structure. Whether it is a frontal collision or a side collision, high requirements are put forward for the connection area between the vehicle A-pillar and the sill beam. In the prior art, generally, an aluminum alloy profile is used for the vehicle A-pillar and the sill beam, and then the vehicle A-pillar is connected to the sill beam along the circumference by a welding process to ensure the side collision performance and longitudinal bending performance of the vehicle body. However, in this structure, the stress at the weld bead during a frontal collision is much greater than the weld bead strength, and the phenomenon of weld bead detachment is likely to occur. Summary of the Utility Model

[0003] The utility model aims to at least solve the technical problem in the prior art that during a frontal collision, due to the stress at the weld bead being much greater than the weld bead strength, the phenomenon of weld bead detachment is likely to occur.

[0004] To this end, an object of the utility model is to provide a vehicle body structure, which includes a vehicle A-pillar and a sill beam. A first step portion is provided at the bottom of the vehicle A-pillar, a second step portion that is lap-fitted with the first step portion is provided at the top of the sill beam, a connecting portion extending towards the sill beam is further provided at the bottom of the vehicle A-pillar, and the connecting portion is connected to the side wall of the sill beam.

[0005] In some embodiments, the first step portion includes a first horizontal lap segment, a first vertical lap segment, and a second horizontal lap segment that are sequentially arranged from the inside of the vehicle to the outside of the vehicle from top to bottom, and the second horizontal lap segment is connected to the connecting portion.

[0006] In some embodiments, the second horizontal lap segment slopes downward.

[0007] In some embodiments, the connecting portion is connected to the side wall of the sill beam by fasteners, and a plurality of first mounting holes for mounting the fasteners are provided on the connecting portion, and the plurality of first mounting holes are arranged staggeredly on the connecting portion.

[0008] In some embodiments, the plurality of first mounting holes are arranged in multiple rows on the connecting portion, and the first mounting holes in adjacent rows are arranged staggeredly.

[0009] In some embodiments, the connecting portion is further connected to the side wall of the sill beam by structural adhesive.

[0010] In some embodiments, a limiting portion for limiting the rear end of the vehicle A-pillar is further provided on the sill beam.

[0011] In some embodiments, the outer side of the sill beam is connected to the outer panel of the side wall, and the outer panel of the side wall is also connected to at least a part of the vehicle A-pillar to shield the first mounting hole on the vehicle A-pillar.

[0012] In some embodiments, the outer panel of the side wall is provided with a bending portion to seal the cavity of the limiting portion and connect it to the vehicle A-pillar.

[0013] In some embodiments, the material of the outer panel of the side wall is carbon fiber material, and the edge of the outer panel of the side wall is coated with polyurethane glue to be hermetically connected to the sill beam and the vehicle A-pillar.

[0014] Another object of the present utility model is to provide a vehicle, including the above-mentioned body structure.

[0015] The body structure and the vehicle provided by the embodiments of the present utility model have the following beneficial effects:

[0016] The body structure includes a vehicle A-pillar and a sill beam. A first step portion is provided at the bottom of the vehicle A-pillar, and a second step portion that is lapped and matched with the first step portion is provided at the top of the sill beam. A connecting portion extending towards the sill beam is further provided at the bottom of the vehicle A-pillar, and the connecting portion is connected to the side wall of the sill beam. The vehicle A-pillar is connected to the sill beam through the first step portion and the connecting portion, which not only increases the connection strength between the vehicle A-pillar and the sill beam, but also does not weaken the strength of the sill beam itself. When a frontal collision occurs, the connection between the vehicle A-pillar and the sill beam is not likely to crack, and at the same time, the performance requirements for both frontal collision and side collision conditions are met, and the longitudinal bending stiffness and torsional stiffness of the body are also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a connection schematic diagram of the vehicle A-pillar and the sill beam in the embodiment of the present utility model;

[0019] Figure 2 It is a structural schematic diagram of the vehicle A-pillar in the embodiment of the present utility model;

[0020] Figure 3 It is a structural schematic diagram of the sill beam in the embodiment of the present utility model;

[0021] Figure 4 It is a three-dimensional view of a body structure in the embodiment of the present utility model.

[0022] Reference numerals:

[0023] 1. Vehicle A-pillar; 2. Threshold beam; 21. Lapping notch; 22. Limiting portion; 23. Reinforcing rib; 24. Reinforcing cavity; 3. First step portion; 31. First horizontal lapping section; 32. First vertical lapping section; 33. Second horizontal lapping section; 4. Second step portion; 41. Third horizontal lapping section; 42. Second vertical lapping section; 43. Fourth horizontal lapping section; 5. Connecting portion; 6. Fastener; 7. First mounting hole; 8. Bending portion; 9. Outer panel of side wall. Detailed implementation manners

[0024] Reference is made herein to the accompanying drawings to describe various aspects and features of the present utility model.

[0025] It should be understood that various modifications can be made to the embodiments applied herein. Therefore, the above description should not be construed as a limitation, but merely as an example of the embodiments. Those skilled in the art will think of other modifications within the scope and spirit of the present utility model.

[0026] The accompanying drawings included in and forming a part of the specification illustrate embodiments of the present utility model, and together with the general description of the present utility model given above and the detailed description of the embodiments given below are used to explain the principles of the present utility model.

[0027] These and other features of the present utility model will become apparent from the following description of the preferred forms of the embodiments given as non-limiting examples with reference to the accompanying drawings.

[0028] It should also be understood that although the present utility model has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present utility model, which have the features as described in the claims and thus are all within the protection scope defined thereby.

[0029] When combined with the accompanying drawings, the above and other aspects, features and advantages of the present utility model will become more apparent in view of the following detailed description.

[0030] Hereinafter, specific embodiments of the present utility model are described with reference to the accompanying drawings; however, it should be understood that the embodiments applied are merely examples of the present utility model, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present utility model with unnecessary or redundant details. Therefore, the specific structural and functional details applied herein are not intended to be limiting, but merely as a basis and representative basis for the claims to teach those skilled in the art to use the present utility model in substantially any suitable detailed structure in a variety of ways.

[0031] The first embodiment of the present utility model provides a vehicle body structure, as Figures 1-4 shown. The vehicle body structure includes a vehicle A-pillar 1 and a sill beam 2. A first step portion 3 is provided at the bottom of the vehicle A-pillar 1, and a second step portion 4 that is lap-joint and cooperates with the first step portion 3 is provided at the top of the sill beam 2. A connecting portion 5 extending toward the sill beam 2 is further provided at the bottom of the vehicle A-pillar 1, and the connecting portion 5 is connected to the side wall of the sill beam 2. During a side collision, since the connection between the vehicle A-pillar 1 and the sill beam 2 is mutually cooperated through the first step portion 3 and the second step portion 4, the anti-deformation ability of the vehicle A-pillar 1 and the sill beam 2 when receiving a side impact is ensured; during a frontal collision, it is transmitted to the upper part of the vehicle A-pillar 1 through the upper side beam of the engine compartment, and a moment with the connection between the vehicle A-pillar 1 and the sill beam 2 as the fulcrum is generated between the vehicle A-pillar 1 and the sill beam 2. At the same time, the vehicle A-pillar 1 is provided with a connecting portion 5 extending toward the sill beam 2, which improves the connection strength between the vehicle A-pillar 1 and the sill beam 2, and also ensures the connection strength between the vehicle A-pillar 1 and the sill beam 2 when the vehicle receives a frontal impact and a side impact, and also improves the longitudinal bending stiffness and torsional stiffness of the vehicle body.

[0032] As Figure 2 and Figure 3 shown, the first step portion 3 includes a first horizontal lap segment 31, a first vertical lap segment 32, and a second horizontal lap segment 33 that are sequentially arranged from top to bottom from the inside of the vehicle to the outside of the vehicle. The second step portion 4 includes a third horizontal lap segment 41, a second vertical lap segment 42, and a fourth horizontal lap segment 43. Among them, the first horizontal lap segment 31 is connected to the third horizontal lap segment 41, the first vertical lap segment 32 is connected to the second vertical lap segment 42, and the second horizontal lap segment 33 is connected to the fourth horizontal lap segment 43. When the vehicle receives a side impact, the energy of the side impact can be respectively transmitted to the second horizontal lap segment 33 through the fourth horizontal lap segment 43, transmitted to the first vertical lap segment 32 through the second vertical lap segment 42, and transmitted to the first horizontal lap segment 31 through the third horizontal lap segment 41. The collision energy can be evenly distributed between the sill beam 2 and the vehicle A-pillar 1, improving the anti-collision performance of the vehicle when receiving a side impact. Exemplarily, the first step portion 3 and the second step portion 4 are welded through a lap weld bead.

[0033] The second horizontal lap segment 33 is connected to the connecting portion 5. The second horizontal lap segment 33 is inclined downward, which is convenient for installation and is beneficial to wedging the vehicle A-pillar 1 and the sill beam 2, improving the connection stability between the two.

[0034] The connecting part 5 is connected to the side wall of the sill beam 2 through fasteners 6. During a frontal collision, the force is transmitted to the upper part of the vehicle A-pillar 1 through the upper side beam of the engine compartment, and a moment is generated between the vehicle A-pillar 1 and the sill beam 2 with the lap weld as the fulcrum. The connecting part 5 is provided on the vehicle A-pillar 1 to extend the outer panel of the vehicle A-pillar 1 towards the sill beam 2 and connect it to the side wall of the sill beam 2. The installation points of the fasteners 6 of the connecting part 5 will also form small moments with the lap weld as the fulcrum, converting most of the peeling force acting on the weld into the shear force of the fasteners 6 between the vehicle A-pillar 1 and the sill beam 2. This not only ensures the collision performance of the side part of the sill beam 2 but also prevents the weld from detaching during a frontal collision.

[0035] A plurality of first mounting holes 7 for installing the fasteners 6 are provided on the connecting part 5, and a plurality of second mounting holes corresponding to the first mounting holes 7 one by one are provided on the side wall of the sill beam 2. The fasteners 6 pass through the first mounting holes 7 and the second mounting holes in sequence to connect the connecting part 5 and the side wall of the sill beam 2. A plurality of fasteners 6 are provided to fix the connecting part 5 and the side wall of the sill beam 2, increasing the installation points of the two and ensuring the connection strength between them. For example, during installation, the connecting part 5 and the side wall of the sill beam 2 are first connected by three fasteners 6 to achieve the preliminary positioning of the connection of the vehicle A-pillar 1, then the vehicle A-pillar 1 and the sill beam 2 are welded, and finally the remaining fasteners 6 are installed to achieve the tight connection between the sill beam 2 and the vehicle A-pillar 1.

[0036] Exemplarily, the fasteners 6 can be set screws, or flow drill screws or self-tapping screws can be selected. If the fasteners 6 are flow drill screws or self-tapping screws, there is no need to provide second mounting holes on the sill beam 2.

[0037] The plurality of first mounting holes 7 are arranged staggered on the connecting part 5. Specifically, the plurality of first mounting holes 7 are arranged in multiple rows on the connecting part 5, and the first mounting holes 7 in adjacent rows are arranged staggered. When the connecting part 5 is stressed, the stress is more dispersed.

[0038] When installing the vehicle A-pillar 1 on the sill beam 2, the connecting part 5 and the side wall of the sill beam 2 are first connected by structural adhesive, and then the fasteners 6 are passed through the first mounting holes 7 to fix them. Using two connection methods to achieve the connection between the connecting part 5 and the side wall of the sill beam 2 can ensure the connection reliability between them.

[0039] Among them, the rear end of the sill beam 2 refers to the end facing the vehicle tail. When processing the sill beam 2, a lap notch 21 is processed at the front end of the sill beam 2, and the above-mentioned limiting part 22 is formed at the rear end of the sill beam 2. The vehicle A-pillar 1 is installed at the position of the lap notch 21, which can optimize the space layout. The limiting part 22 at the rear end of the sill beam 2 can limit the rear end of the vehicle A-pillar 1, and at the same time, the limiting part 22 can also support the rear end of the vehicle A-pillar 1, improving the support strength of the sill beam 2 for the vehicle A-pillar 1.

[0040] The sill beam 2 is provided with a plurality of reinforcing ribs 23 therein. The plurality of reinforcing ribs 23 are connected to each other and connected to the inner wall of the sill beam 2 to form a plurality of reinforcing cavities 24, so as to improve the strength of the sill beam 2. At the same time, the limiting part 22 at the rear end of the sill beam 2 has a cavity, and this cavity can also be used as the reinforcing cavity 24.

[0041] As Figure 4 shown, the outer side of the sill beam 2 is connected to the outer panel 9 of the side wall. The outer panel 9 of the side wall is also connected to at least a part of the vehicle A-pillar 1 to block the first mounting holes 7 on the vehicle A-pillar 1 and improve the appearance beauty of the vehicle. Among them, the outer side of the sill beam 2 refers to the side of the sill beam outside the vehicle. Exemplarily, the edge of the outer panel 9 of the side wall is coated with polyurethane glue. The upper part of the outer panel 9 of the side wall is hermetically connected to the vehicle A-pillar 1 through polyurethane glue, and the lower part of the outer panel 9 of the side wall is hermetically connected to the sill beam 2 through polyurethane glue, so as to improve the sealing performance between the outer panel 9 of the side wall and the vehicle A-pillar 1 and between the outer panel 9 of the side wall and the sill beam 2. The part of the outer panel 9 of the side wall arranged outside the connecting part 5 can block a part of the plurality of first mounting holes 7, preventing the plurality of first mounting holes 7 from being exposed outside the vehicle and affecting the beauty, and at the same time playing a sealing role.

[0042] The outer panel 9 of the side wall is provided with a bending part 8 to seal the cavity of the limiting part 22 and connect it to the vehicle A-pillar 1. Specifically, a bending part 8 is provided on the side of the outer panel 9 of the side wall connected to the vehicle A-pillar 1. The bending part 8 and the plate body of the outer panel 9 of the side wall jointly block the cavity of the limiting part 22 to prevent water from entering the cavity of the limiting part 22 when the vehicle wades through water, and improve the sealing performance between the outer panel 9 of the side wall and the sill beam 2.

[0043] The material of the outer panel 9 of the side wall is carbon fiber material, which reduces the weight of the outer panel 9 of the side wall and is beneficial to realizing the lightweight of the vehicle.

[0044] The vehicle A-pillar 1 and the sill beam 2 are aluminum alloy extrusions. Since the aluminum structure has a relatively low density but high strength, it is beneficial to reduce the weight of the vehicle body structure, realize the lightweight of the vehicle, and at the same time improve the stability and safety of the structure.

[0045] The second embodiment of the present invention provides a vehicle, including the above-mentioned vehicle body structure.

[0046] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0047] In the description of the present utility model, the "first feature" and the "second feature" may include one or more of such features.

[0048] In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0049] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0050] In the description of the present utility model, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0051] In the description of the present utility model, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0052] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A vehicle body structure, characterized in that: The invention comprises a vehicle A-pillar and a threshold beam, wherein a first step portion is provided at the bottom of the vehicle A-pillar, a second step portion overlapped with the first step portion is provided at the top of the threshold beam, and a connecting portion extending toward the threshold beam is also provided at the bottom of the vehicle A-pillar, wherein the connecting portion is connected to the side wall of the threshold beam.

2. A vehicle body structure according to claim 1, characterized in that: The first step portion includes a first transverse overlapping section, a first vertical overlapping section, and a second transverse overlapping section which are arranged sequentially from top to bottom from the inside of the vehicle to the outside of the vehicle, and the second transverse overlapping section is connected to the connecting portion.

3. A vehicle body structure according to claim 2, characterized in that: The second transverse overlapping section is inclined downward.

4. The vehicle body structure according to claim 1, characterized in that: The connecting portion is connected to the side wall of the door sill beam via a fastener, and a plurality of first mounting holes for mounting the fasteners are provided on the connecting portion, and the plurality of first mounting holes are arranged alternately on the connecting portion.

5. A vehicle body structure according to claim 4, characterized in that: A plurality of the first mounting holes are arranged in a plurality of rows on the connecting portion, and the first mounting holes in two adjacent rows are arranged in a staggered manner.

6. A vehicle body structure according to claim 4, characterized in that: The connecting portion and the side wall of the door sill beam are also connected by structural adhesive.

7. The vehicle body structure according to claim 1, characterized in that: The door sill beam is also provided with a limiting portion for limiting the rear end of the A-pillar of the vehicle.

8. The vehicle body structure according to claim 7, characterized in that: The outer side of the door sill beam is connected to the side outer panel, and the side outer panel is also connected to at least a portion of the vehicle A-pillar to cover the first mounting hole on the vehicle A-pillar.

9. A vehicle body structure according to claim 8, characterized in that: The side outer panel is provided with a bent portion to seal the cavity of the limiting portion and connect with the A-pillar of the vehicle; and / or The side outer panel is made of carbon fiber material, and the edge of the side outer panel is coated with polyurethane glue to be sealed and connected with the door sill beam and the vehicle A-pillar.

10. A vehicle, characterized in that: A vehicle body structure comprising any one of claims 1-9.

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