Roof side rail structure, automobile body front structure and automobile
By designing an annular collision force transmission cavity in the upper beam structure, the problem that the existing upper beam structure cannot effectively absorb collision force under small deviation conditions is solved, and better collision energy dispersion and vehicle stability are achieved.
Patent Information
- Application Number
- CN202421366245.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The existing upper beam structure cannot effectively absorb collision force when dealing with small deviations, resulting in poor dispersion of collision energy, which can easily lead to deformation of the front tower and invasion of A-pillar.
A structure of upper beam is designed, including an inner reinforcement plate of upper beam and an outer reinforcement plate of upper beam, forming an annular collision force transmission cavity. The inner diameter of the cavity gradually increases along the front and rear direction of the vehicle, improving its stiffness and resistance to deformation, and effectively guiding the collision force to transmit backwards.
By forming an annular collision force transmission cavity, the collision force generated when the barrier is contacted can be effectively absorbed, the deformation at the front tower is reduced, the energy absorption at the nacelle is improved, and the invasion deformation of the A-pillar by the barrier is reduced.
Smart Images
Figure CN222512256U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle body front structure, in particular to an upper side beam structure, a vehicle body front structure and a car. Background Art
[0002] In conventional front-end vehicle structures, the upper side rails, longitudinal beams, and cross beams together form the vehicle's backbone. They support and connect the various components, ensuring their correct relative positioning and bearing various loads from both inside and outside the vehicle. This structure must possess sufficient strength and rigidity to withstand the vehicle's weight and the impacts from the wheels.
[0003] The existing upper side beam structure does not have a collision force transmission cavity. When dealing with small offset collision conditions, the upper side beam structure cannot effectively absorb the collision force, which is not conducive to the dispersion of collision energy and inconvenient to guide the collision force to be transmitted backward. It is easy to cause deformation of the front tower seat and serious deformation of the A-pillar caused by the barrier. Utility Model Content
[0004] The utility model provides an upper side beam structure, a vehicle body front structure and a vehicle, so as to solve the problem that the existing upper side beam structure cannot effectively absorb collision force.
[0005] A top side beam structure, comprising a top side beam inner reinforcement plate and a top side beam outer reinforcement plate;
[0006] The upper side beam inner reinforcement plate cooperates with the upper side beam outer reinforcement plate to form a collision force transmission cavity;
[0007] The inner diameter of the collision force transmission cavity gradually increases from front to back along the front-to-back direction of the vehicle.
[0008] Preferably, the upper side beam outer reinforcement plate includes a front outer reinforcement plate, a middle outer reinforcement plate and a rear outer reinforcement plate sequentially arranged along the front-to-rear direction of the vehicle;
[0009] The front outer reinforcement plate is installed in front of the upper side beam inner reinforcement plate to form a first force transmission section;
[0010] The middle outer reinforcement plate is installed in the middle of the upper side beam inner reinforcement plate to form a second force transmission section;
[0011] The rear outer reinforcement plate is installed at the rear of the upper side beam inner reinforcement plate to form a third force transmission section;
[0012] The first force transmission section, the second force transmission section and the third force transmission section cooperate to form the collision force transmission cavity.
[0013] Preferably, an arc-shaped guiding structure is formed on the outer side of the upper side beam outer reinforcement plate.
[0014] A vehicle body front structure, comprising a front longitudinal beam structure, an A-pillar and the upper side beam structure;
[0015] The front end of the upper side beam structure is connected to the front end of the front longitudinal beam structure, the rear end of the upper side beam structure is connected to the upper part of the A-pillar, and the rear end of the front longitudinal beam structure is connected to the lower part of the A-pillar.
[0016] Preferably, the front structure of the vehicle body includes a front longitudinal beam front end reinforcement arranged along the left-right direction of the vehicle, the front longitudinal beam front end reinforcement passes through the front end of the front longitudinal beam structure, the first end of the front longitudinal beam front end reinforcement extends to the inner side of the front longitudinal beam structure, and the second end of the front longitudinal beam front end reinforcement extends to the outer side of the front longitudinal beam structure.
[0017] Preferably, the front end reinforcement of the front longitudinal beam is a tubular reinforcement, and the cross-sectional shape of the tubular reinforcement along the left-right direction of the vehicle is elliptical.
[0018] Preferably, the front longitudinal beam structure includes a front longitudinal beam outer plate assembly, a front longitudinal beam inner plate assembly and a front wall panel bottom reinforcement plate assembly;
[0019] The front end of the front longitudinal beam outer panel assembly is connected to the front end of the upper side beam structure, and the rear end of the front longitudinal beam outer panel assembly is connected to the lower part of the A-pillar;
[0020] The front longitudinal beam inner panel assembly is arranged on the front end portion of the front longitudinal beam outer panel assembly, the front wall panel bottom reinforcement panel assembly is arranged on the rear end portion of the front longitudinal beam outer panel assembly, and the rear end of the front longitudinal beam inner panel assembly is connected to the front end of the front wall panel bottom reinforcement panel assembly.
[0021] Preferably, the front longitudinal beam outer panel assembly includes a subframe outer mounting plate, a front longitudinal beam outer reinforcement plate, and a longitudinal beam rear upper connecting plate; the subframe outer mounting plate is arranged along the vehicle up-down direction, the front longitudinal beam outer reinforcement plate is arranged along the vehicle front-back direction, and the longitudinal beam rear upper connecting plate is arranged along the vehicle left-right direction, the subframe outer mounting plate is connected to the front end of the front longitudinal beam outer reinforcement plate, the front end of the longitudinal beam rear upper connecting plate is connected to the rear end of the front longitudinal beam outer reinforcement plate, and the rear end of the longitudinal beam rear upper connecting plate is connected to the lower portion of the A-pillar;
[0022] The front longitudinal beam inner plate assembly includes a subframe inner mounting plate and a front longitudinal beam inner reinforcement plate, wherein the subframe inner mounting plate is arranged along the vertical direction of the vehicle and matches the subframe outer mounting plate, and the front longitudinal beam inner reinforcement plate is arranged along the front-back direction of the vehicle and matches the front longitudinal beam outer reinforcement plate, and the subframe inner mounting plate is connected to the front end of the front longitudinal beam inner reinforcement plate;
[0023] The front wall panel bottom reinforcement plate assembly includes a subframe rear mounting plate and a longitudinal beam rear lower connecting plate, the subframe rear mounting plate is arranged along the front-to-rear direction of the vehicle, the longitudinal beam rear lower connecting plate is arranged along the left-right direction of the vehicle, and the longitudinal beam rear lower connecting plate is arranged at the bottom of the longitudinal beam rear upper connecting plate; the front end of the subframe rear mounting plate is connected to the rear end of the front longitudinal beam inner reinforcement plate, the rear end of the subframe rear mounting plate is connected to the front end of the longitudinal beam rear lower connecting plate, and the rear end of the longitudinal beam rear lower connecting plate is connected to the lower part of the A-pillar.
[0024] Preferably, the vehicle body front structure further includes a subframe front mounting plate and a front anti-collision beam mounting plate;
[0025] The sub-frame front mounting plate is arranged on the front end of the front longitudinal beam outer plate assembly, and the front anti-collision beam mounting plate is arranged on the sub-frame front mounting plate.
[0026] An automobile comprises the aforementioned vehicle body front structure.
[0027] The upper side beam structure provided by the embodiment of the utility model includes an upper side beam inner reinforcement plate and an upper side beam outer reinforcement plate; when in use, the upper side beam structure is connected between the front longitudinal beam structure and the A-pillar, and the upper side beam inner reinforcement plate and the upper side beam outer reinforcement plate cooperate to form a collision force transmission cavity, which is an annular cavity and effectively absorbs the collision force generated when the barrier contacts; the inner diameter of the collision force transmission cavity gradually increases from front to back along the front and rear direction of the vehicle, and its stiffness and resistance to deformation gradually increase from front to back, which can effectively guide the collision force to be transmitted backward, which is beneficial to the dispersion of collision energy, and guides the vehicle's movement after contacting the barrier under collision conditions, effectively reduces the deformation at the front tower seat and improves the energy absorption at the cabin, and reduces the barrier's invasion and deformation of the A-pillar. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0029] Figure 1 This is an isometric view of the front structure of the vehicle body in a first perspective in one embodiment of the present invention;
[0030] Figure 2 This is an isometric view of the front structure of the vehicle body in a second perspective in one embodiment of the present invention;
[0031] Figure 3 This is a side view of the front structure of the vehicle body in one embodiment of the present utility model;
[0032] Figure 4 This is a top view of the front structure of the vehicle body in one embodiment of the present utility model;
[0033] Figure 5 It is an exploded view of the front structure of the vehicle body in one embodiment of the present invention.
[0034] Among them, 1. Upper side beam structure; 11. Upper side beam inner reinforcement plate; 12. Upper side beam outer reinforcement plate; 121. Front outer reinforcement plate; 122. Middle outer reinforcement plate; 123. Rear outer reinforcement plate; 2. Front longitudinal beam structure; 21. Front longitudinal beam outer panel assembly; 211. Subframe outer mounting plate; 212. Front longitudinal beam outer reinforcement plate; 213. Longitudinal beam rear upper connecting plate; 22. Front longitudinal beam inner panel assembly; 221. Subframe inner mounting plate; 222. Front longitudinal beam inner reinforcement plate; 23. Front wall panel bottom reinforcement panel assembly; 231. Subframe rear mounting plate; 232. Longitudinal beam rear lower connecting plate; 3. A-pillar; 31. A-pillar inner panel; 32. A-pillar reinforcement plate; 4. Front tower seat; 5. Subframe front mounting plate; 6. Front anti-collision beam mounting plate; 7. Front longitudinal beam front end reinforcement. DETAILED DESCRIPTION
[0035] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0036] In the description of the present invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0037] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0038] The utility model embodiment provides a top side beam structure 1, referring to Figure 1 and Figure 2 The upper side beam structure 1 includes an upper side beam inner reinforcement plate 11 and an upper side beam outer reinforcement plate 12; the upper side beam inner reinforcement plate 11 and the upper side beam outer reinforcement plate 12 cooperate to form a collision force transmission cavity; the inner diameter of the collision force transmission cavity gradually increases from front to back along the front-to-back direction of the vehicle.
[0039] As an example, the upper side beam structure 1 includes an upper side beam inner reinforcement plate 11 and an upper side beam outer reinforcement plate 12; when in use, the upper side beam structure 1 is connected between the front longitudinal beam structure 2 and the A-pillar 3, and the upper side beam inner reinforcement plate 11 and the upper side beam outer reinforcement plate 12 cooperate to form a collision force transmission cavity, which is an annular cavity and effectively absorbs the collision force generated when the barrier contacts; the inner diameter of the collision force transmission cavity gradually increases from front to back along the front and rear direction of the vehicle, and its stiffness and resistance to deformation gradually increase from front to back, which can effectively guide the collision force to be transmitted backward, which is conducive to the dispersion of collision energy, and guides the vehicle's movement after contacting the barrier under collision conditions, effectively reducing the deformation of the front tower seat 4 and improving the energy absorption at the cabin, reducing the barrier's invasion and deformation of the A-pillar 3.
[0040] In one embodiment, referring to Figure 1 and Figure 2 The upper side beam outer reinforcement plate 12 includes a front outer reinforcement plate 121, a middle outer reinforcement plate 122 and a rear outer reinforcement plate 123 which are arranged in sequence along the front and rear directions of the vehicle; the front outer reinforcement plate 121 is installed at the front part of the upper side beam inner reinforcement plate 11 to form a first force transmission section; the middle outer reinforcement plate 122 is installed at the middle part of the upper side beam inner reinforcement plate 11 to form a second force transmission section; the rear outer reinforcement plate 123 is installed at the rear part of the upper side beam inner reinforcement plate 11 to form a third force transmission section; the first force transmission section, the second force transmission section and the third force transmission section cooperate to form a collision force transmission cavity.
[0041] As an example, the upper side beam outer reinforcement plate 12 includes a front outer reinforcement plate 121, a middle outer reinforcement plate 122 and a rear outer reinforcement plate 123. The front outer reinforcement plate 121, the middle outer reinforcement plate 122 and the rear outer reinforcement plate 123 are arranged in sequence along the front and rear directions of the vehicle to form an arc-shaped guiding structure. The arc-shaped guiding structure can guide the vehicle's movement after contacting the barrier under collision conditions, so that the vehicle gradually avoids obstacles and reduces the degree of damage to the vehicle. The front outer reinforcement plate 121 is installed at the front part of the upper side beam inner reinforcement plate 11 to form a first force transmission section; the middle outer reinforcement plate 122 is installed at the middle part of the upper side beam inner reinforcement plate 11 to form a second force transmission section; the rear outer reinforcement plate 123 is installed at the rear part of the upper side beam inner reinforcement plate 11 to form a third force transmission section; the first force transmission section, the second force transmission section and the third force transmission section cooperate to form a collision force transmission cavity, which is an annular cavity that effectively absorbs the collision force generated when the barrier is in contact; the inner diameter of the collision force transmission cavity gradually increases from front to back along the front and rear direction of the vehicle, and its stiffness and deformation resistance gradually increase from front to back, which can effectively guide the collision force to be transmitted backward, which is conducive to the dispersion of collision energy, and guides the vehicle's movement after contacting the barrier under collision conditions, effectively reducing the deformation of the front tower seat 4 and improving the energy absorption at the cabin, reducing the barrier's intrusion and deformation of the A-pillar 3.
[0042] In one embodiment, referring to Figure 1 and Figure 4 , an arc-shaped guiding structure is formed on the outer side of the upper side beam outer reinforcement plate 12.
[0043] As an example, the distance between the outer side of the roof rail outer reinforcement plate 12 and the vehicle centerline gradually increases from front to back in the vehicle's fore-aft direction, forming an arc-shaped guiding structure. This arc-shaped guiding structure can guide the vehicle's trajectory after contact with a barrier in a collision, allowing the vehicle to gradually avoid the obstacle and minimize damage. Specifically, the distance between the outer side of the front outer reinforcement plate 121 and the vehicle centerline, the distance between the outer side of the middle outer reinforcement plate 122 and the vehicle centerline, and the distance between the outer side of the rear outer reinforcement plate 123 and the vehicle centerline gradually increase from front to back in the vehicle's fore-aft direction, forming an arc-shaped guiding structure.
[0044] The embodiment of the utility model provides a vehicle body front structure, referring to Figure 1 、 Figure 2 and Figure 3 , including a front longitudinal beam structure 2, an A-pillar 3 and an upper side beam structure 1; the front end of the upper side beam structure 1 is connected to the front end of the front longitudinal beam structure 2, the rear end of the upper side beam structure 1 is connected to the upper part of the A-pillar 3, and the rear end of the front longitudinal beam structure 2 is connected to the lower part of the A-pillar 3.
[0045] As an example, the front structure of the vehicle body includes a front longitudinal beam structure 2, an A-pillar 3 and an upper side beam structure 1; the front end of the upper side beam structure 1 is connected to the front end of the front longitudinal beam structure 2, the rear end of the upper side beam structure 1 is connected to the upper part of the A-pillar 3, and the rear end of the front longitudinal beam structure 2 is connected to the lower part of the A-pillar 3, forming a Y-shaped force transmission structure, which transmits the collision force from the front end of the front longitudinal beam structure 2 through the front longitudinal beam structure 2 and the upper side beam structure 1 at the same time, so as to facilitate the rapid transmission of the collision force to the rear and improve the force transmission effect. The inner reinforcement plate 11 of the upper side beam cooperates with the outer reinforcement plate 12 of the upper side beam to form a collision force transmission cavity arranged along the front-to-rear direction of the vehicle. The collision force transmission cavity is an annular cavity, which effectively absorbs the collision force generated when the barrier comes into contact; the inner diameter of the collision force transmission cavity gradually increases from front to back along the front-to-rear direction of the vehicle, and its stiffness and deformation resistance gradually increase from front to back, which can effectively guide the collision force to be transmitted backward, which is beneficial to the dispersion of collision energy, and guide the vehicle's movement after contacting the barrier under collision conditions, effectively reducing the deformation of the front tower seat 4 and improving the energy absorption at the cabin, reducing the barrier's invasion and deformation of the A-pillar 3.
[0046] The front vehicle structure in this example also includes a front tower mount 4. Its first end is connected to the upper side sill structure 1, and its second end is connected to the front longitudinal member structure 2. This strengthens the connection between the upper side sill structure 1 and the front longitudinal member structure 2, enhancing the stability of the force transmission path. The front tower mount 4 utilizes a cast aluminum structural design, which increases the rigidity and strength of the vehicle connection at the chassis suspension. This design also effectively reduces deformation at the front tower mount 4, improves energy absorption in the engine compartment, and reduces the intrusion and deformation of the A-pillar 3 by the barrier.
[0047] In one embodiment, referring to Figure 1 and Figure 2 The front structure of the vehicle body includes a front longitudinal beam front end reinforcement 7 arranged along the left and right direction of the vehicle. The front longitudinal beam front end reinforcement 7 passes through the front end of the front longitudinal beam structure 2. The first end of the front longitudinal beam front end reinforcement 7 extends to the inner side of the front longitudinal beam structure 2, and the second end of the front longitudinal beam front end reinforcement 7 extends to the outer side of the front longitudinal beam structure 2.
[0048] As an example, the front longitudinal beam structure 2 also includes a front longitudinal beam front end reinforcement 7, which is arranged along the left and right directions of the vehicle, and the front longitudinal beam front end reinforcement 7 passes through the front end of the front longitudinal beam structure 2; the first end of the front longitudinal beam front end reinforcement 7 extends to the inner side of the front longitudinal beam structure 2, and the second end of the front longitudinal beam front end reinforcement 7 extends to the outer side of the front longitudinal beam structure 2, and absorbs energy by collapse when contacting the barrier, effectively giving priority to the small offset collision condition and the front end of the front longitudinal beam structure 2 of the vehicle body, effectively utilizing the deflection energy absorption of the front longitudinal beam structure 2, reducing the excessive energy at the rear of the cabin, resulting in structural instability and excessive intrusion into the passenger compartment, causing personal injury.
[0049] The front structure of the vehicle body in this example effectively solves the problem of energy absorption in small-bias working conditions by adding the front end reinforcement 7 of the front longitudinal beam, streamlines the structure, reduces the increase in mold costs, welding and logistics costs caused by too many sheet metal connectors, and promotes the technical upgrade and brand promotion of component-level enterprises.
[0050] In one embodiment, referring to Figure 1 The front end reinforcement member 7 of the front longitudinal beam is a tubular reinforcement member, and the cross-sectional shape of the tubular reinforcement member along the left-right direction of the vehicle is an ellipse.
[0051] As an example, the front end reinforcement 7 of the front longitudinal beam is a tubular reinforcement, and its material is steel pipe, which can improve the strength of the front end reinforcement 7 of the front longitudinal beam; the cross-sectional shape of the tubular reinforcement along the left and right directions of the vehicle is elliptical. When the elliptical tubular reinforcement is welded, a lateral barrier energy absorption structure can be formed. When a small offset collision occurs, the barrier is preferentially contacted with the front end of the front longitudinal beam structure 2. The elliptical design of the front end reinforcement 7 of the front longitudinal beam can effectively realize deflection energy absorption, reduce the excessive energy at the rear of the cabin, cause structural instability, increase excessive intrusion into the passenger compartment, and cause personal injury.
[0052] In one embodiment, referring to Figure 1 and Figure 2 The front longitudinal beam structure 2 includes a front longitudinal beam outer panel assembly 21, a front longitudinal beam inner panel assembly 22 and a front wall panel bottom reinforcement panel assembly 23; the front end of the front longitudinal beam outer panel assembly 21 is connected to the front end of the upper side beam structure 1, and the rear end of the front longitudinal beam outer panel assembly 21 is connected to the lower part of the A-pillar 3; the front longitudinal beam inner panel assembly 22 is arranged on the front end part of the front longitudinal beam outer panel assembly 21, and the front wall panel bottom reinforcement panel assembly 23 is arranged on the rear end part of the front longitudinal beam outer panel assembly 21, and the rear end of the front longitudinal beam inner panel assembly 22 is connected to the front end of the front wall panel bottom reinforcement panel assembly 23.
[0053] As an example, the front longitudinal beam structure 2 includes a front longitudinal beam outer panel assembly 21, a front longitudinal beam inner panel assembly 22 and a front wall panel bottom reinforcement panel assembly 23; during installation, the front end of the front longitudinal beam outer panel assembly 21 is connected to the front end of the upper side beam structure 1, and the rear end of the front longitudinal beam outer panel assembly 21 is connected to the lower part of the A-pillar 3, forming an L-shaped force transmission path. The front longitudinal beam inner panel assembly 22 is arranged on the front end portion of the front longitudinal beam outer panel assembly 21, specifically on the front end portion of the front longitudinal beam outer panel assembly 21 arranged along the front-to-rear direction of the vehicle. The front wall panel bottom reinforcement panel assembly 23 is arranged on the rear end portion of the front longitudinal beam outer panel assembly 21, specifically on the rear end portion of the front longitudinal beam outer panel assembly 21 arranged along the front-to-rear direction of the vehicle and the portion of the front longitudinal beam outer panel assembly 21 arranged along the left-right direction of the vehicle. The rear end of the front longitudinal beam inner panel assembly 22 is connected to the front end of the front wall panel bottom reinforcement panel assembly 23, so that an L-shaped force transmission cavity can be formed, which is convenient for transmitting the collision force received by the front end of the front longitudinal beam outer panel assembly 21 to the A-pillar 3, effectively improving the energy absorption effect of the front longitudinal beam structure 2, reducing the safety level risk of the stress deformation of the front structure of the vehicle body, and enhancing brand competitiveness. In addition, the front end reinforcement 7 of the front longitudinal beam is specifically arranged at the front end of the front longitudinal beam outer panel assembly 21, with a first end extending to the inner side of the front end of the front longitudinal beam outer panel assembly 21, and a second end extending to the outer side of the front end of the front longitudinal beam outer panel assembly 21. When the barrier is contacted, it collapses and absorbs energy, effectively giving priority to the small offset collision condition and the front end of the front longitudinal beam structure 2 of the front structure of the vehicle body, and effectively utilizing the deflection energy absorption of the front longitudinal beam structure 2, thereby reducing the structural instability caused by excessive energy at the rear of the cabin, and increasing the excessive intrusion into the passenger compartment to cause personal injury.
[0054] In one embodiment, referring to Figure 1 、 Figure 2 and Figure 5The front longitudinal beam outer panel assembly 21 includes a subframe outer mounting plate 211, a front longitudinal beam outer reinforcement plate 212 and a longitudinal beam rear upper connecting plate 213; the subframe outer mounting plate 211 is arranged along the vehicle up and down direction, the front longitudinal beam outer reinforcement plate 212 is arranged along the vehicle front and rear direction, and the longitudinal beam rear upper connecting plate 213 is arranged along the vehicle left and right direction. The subframe outer mounting plate 211 is connected to the front end of the front longitudinal beam outer reinforcement plate 212, the front end of the longitudinal beam rear upper connecting plate 213 is connected to the rear end of the front longitudinal beam outer reinforcement plate 212, and the rear end of the longitudinal beam rear upper connecting plate 213 is connected to the lower part of the A-pillar 3; the front longitudinal beam inner panel assembly 22 includes a subframe inner mounting plate 221 and a front longitudinal beam inner reinforcement plate 222. The subframe inner mounting plate 221 is arranged along the vehicle up and down direction and matches the subframe outer mounting plate 211 The front longitudinal beam inner reinforcement plate 222 is arranged along the front and rear direction of the vehicle and matches the front longitudinal beam outer reinforcement plate 212. The subframe inner mounting plate 221 is connected to the front end of the front longitudinal beam inner reinforcement plate 222. The front wall panel bottom reinforcement plate assembly 23 includes a subframe rear mounting plate 231 and a longitudinal beam rear lower connecting plate 232. The subframe rear mounting plate 231 is arranged along the front and rear direction of the vehicle, the longitudinal beam rear lower connecting plate 232 is arranged along the left and right direction of the vehicle, and the longitudinal beam rear lower connecting plate 232 is set at the bottom of the longitudinal beam rear upper connecting plate 213. The front end of the subframe rear mounting plate 231 is connected to the rear end of the front longitudinal beam inner reinforcement plate 222, the rear end of the subframe rear mounting plate 231 is connected to the front end of the longitudinal beam rear lower connecting plate 232, and the rear end of the longitudinal beam rear lower connecting plate 232 is connected to the lower part of the A-pillar 3.
[0055] As an example, the subframe outer mounting plate 211, the front longitudinal beam outer reinforcement plate 212 and the longitudinal beam rear upper connecting plate 213 are spot welded together to form the front longitudinal beam outer plate assembly 21; the subframe inner mounting plate 221 and the front longitudinal beam inner reinforcement plate 222 are spot welded together to form the front longitudinal beam inner plate assembly 22; the subframe rear mounting plate 231 and the longitudinal beam rear lower connecting plate 232 are spot welded together to form the front wall panel bottom reinforcement plate assembly 23; during installation, the subframe outer mounting plate 211 is placed along the vehicle The front longitudinal beam outer reinforcement plate 212 is arranged along the front and rear direction of the vehicle, the longitudinal beam rear upper connecting plate 213 is arranged along the left and right direction of the vehicle, the subframe outer mounting plate 211 is connected to the front end of the front longitudinal beam outer reinforcement plate 212, the front end of the longitudinal beam rear upper connecting plate 213 is connected to the rear end of the front longitudinal beam outer reinforcement plate 212, and the rear end of the longitudinal beam rear upper connecting plate 213 is connected to the lower part of the A-pillar 3; the subframe inner mounting plate 221 is arranged along the top and bottom direction of the vehicle, and the subframe outer mounting plate 221 is connected to the front end of the front longitudinal beam outer reinforcement plate 212. The mounting plate 211 matches the front longitudinal beam inner reinforcement plate 222, which is arranged along the front and rear direction of the vehicle and matches the front longitudinal beam outer reinforcement plate 212. The subframe inner mounting plate 221 is connected to the front end of the front longitudinal beam inner reinforcement plate 222; the subframe rear mounting plate 231 is arranged along the front and rear direction of the vehicle, and the longitudinal beam rear lower connecting plate 232 is arranged along the left and right direction of the vehicle. The longitudinal beam rear lower connecting plate 232 is set at the bottom of the longitudinal beam rear upper connecting plate 213; the front end of the subframe rear mounting plate 231 The rear end of the front longitudinal beam inner reinforcement plate 222 is connected to the rear end of the subframe rear mounting plate 231 and the front end of the longitudinal beam rear lower connecting plate 232. The rear end of the longitudinal beam rear lower connecting plate 232 is connected to the lower portion of the A-pillar 3. This forms an L-shaped force transmission cavity, which facilitates the transmission of collision forces received by the front end of the front longitudinal beam outer panel assembly 21 to the A-pillar 3, effectively improving the energy absorption of the front longitudinal beam structure 2, reducing the safety risk of deformation of the front vehicle body structure under stress, and enhancing brand competitiveness. In addition, the front longitudinal beam front end reinforcement 7 penetrates the front longitudinal beam outer reinforcement plate 212 and the front longitudinal beam inner reinforcement plate 222, forming an outer free end that collapses and absorbs energy when a barrier contacts the vehicle body, effectively prioritizing the front end of the front longitudinal beam structure 2 in small offset collisions, effectively utilizing the deflection of the front longitudinal beam structure 2 to absorb energy, and reducing the structural instability caused by excessive energy at the rear of the cabin, which could lead to excessive intrusion into the passenger compartment and cause personal injury.
[0056] In this example, the front longitudinal beam inner panel assembly 22 and other components (such as the upper connecting plate of the front longitudinal beam channel and the rear inner panel of the upper longitudinal beam channel) are spot welded with steel and riveted with the front tower seat 4 through SPR, FDS and structural adhesive to form a front wheel cover assembly; the front longitudinal beam outer panel assembly 21, the front wall panel bottom reinforcement plate assembly 23 and the front wheel cover assembly are spot welded, SPR, FDS and structural adhesive riveted to form a front longitudinal beam sub-assembly; the front longitudinal beam sub-assembly and the upper side beam outer reinforcement plate 12 are spot welded and welded to form a front longitudinal beam assembly; the front longitudinal beam assembly, the A-pillar inner panel 31 and the A-pillar reinforcement plate 32 form a front-end offset collision energy absorption frame structure of the vehicle body.
[0057] In one embodiment, referring to Figure 1 and Figure 2 The front structure of the vehicle body also includes a subframe front mounting plate 5 and a front anti-collision beam mounting plate 6; the subframe front mounting plate 5 is arranged at the front end of the front longitudinal beam outer plate assembly 21, and the front anti-collision beam mounting plate 6 is arranged on the subframe front mounting plate 5 for installing the front anti-collision beam.
[0058] As an example, the front structure of the vehicle body also includes a subframe front mounting plate 5 and a front anti-collision beam mounting plate 6; the front end of the front longitudinal beam outer panel assembly 21 is mounted on the subframe front mounting plate 5, and the front anti-collision beam mounting plate 6 is arranged on the subframe front mounting plate 5 for connecting with the front anti-collision beam to improve the collision performance of the front structure of the vehicle body.
[0059] An embodiment of the utility model provides an automobile, comprising a vehicle body front structure.
[0060] As an example, the front structure of the vehicle body includes a front longitudinal beam structure 2, an A-pillar 3 and an upper side beam structure 1; the front end of the upper side beam structure 1 is connected to the front end of the front longitudinal beam structure 2, the rear end of the upper side beam structure 1 is connected to the upper part of the A-pillar 3, and the rear end of the front longitudinal beam structure 2 is connected to the lower part of the A-pillar 3, forming a Y-shaped force transmission structure, which transmits the collision force from the front end of the front longitudinal beam structure 2 through the front longitudinal beam structure 2 and the upper side beam structure 1 at the same time, so as to facilitate the rapid transmission of the collision force to the rear and improve the force transmission effect. The inner reinforcement plate 11 of the upper side beam cooperates with the outer reinforcement plate 12 of the upper side beam to form a collision force transmission cavity arranged along the front-to-rear direction of the vehicle. The collision force transmission cavity is an annular cavity, which effectively absorbs the collision force generated when the barrier comes into contact; the inner diameter of the collision force transmission cavity gradually increases from front to back along the front-to-rear direction of the vehicle, and its stiffness and deformation resistance gradually increase from front to back, which can effectively guide the collision force to be transmitted backward, which is beneficial to the dispersion of collision energy, and guide the vehicle's movement after contacting the barrier under collision conditions, effectively reducing the deformation of the front tower seat 4 and improving the energy absorption at the cabin, reducing the barrier's invasion and deformation of the A-pillar 3.
[0061] The front vehicle structure in this example also includes a front tower mount 4. Its first end is connected to the upper side sill structure 1, and its second end is connected to the front longitudinal member structure 2. This strengthens the connection between the upper side sill structure 1 and the front longitudinal member structure 2, enhancing the stability of the force transmission path. The front tower mount 4 utilizes a cast aluminum structural design, which increases the rigidity and strength of the vehicle connection at the chassis suspension. This design also effectively reduces deformation at the front tower mount 4, improves energy absorption in the engine compartment, and reduces the intrusion and deformation of the A-pillar 3 by the barrier.
[0062] In this example, the front longitudinal beam outer reinforcement plate 212, the front longitudinal beam inner reinforcement plate 222 and the subframe outer mounting plate 211, the front anti-collision beam mounting plate 6, the subframe front mounting plate 5, the front longitudinal beam front end reinforcement 7, the subframe rear mounting plate 231 and the longitudinal beam rear lower connecting plate 232 are connected by steel spot welding and structural adhesive to form the lower main force transmission cavity structure of the front structure of the vehicle body; the front outer reinforcement plate 121, the middle outer reinforcement plate 122, the rear outer reinforcement plate 123 and the upper side beam inner reinforcement plate 11 are connected by steel spot welding to form the upper side beam structure 1, and then connected to the front tower seat 4 by SPR, FDS riveting and structural adhesive to form the upper main force transmission cavity structure of the front structure of the vehicle body, and are connected to the A-pillar 3 to form a complete front end small offset collision energy absorption frame structure of the vehicle body. The front longitudinal beam structure 2 and the upper side beam structure 1 cooperate to form a high-strength steel main structure; its bottom energy absorption adopts an elliptical steel tube design, and the upper energy absorption adopts a ring-shaped steel cavity beam structure, forming two upper and lower combined transmission paths and forming a complete front-end small offset collision energy absorption frame structure with the cast aluminum front tower seat 4, reducing the safety level risk of stress deformation of the front end of the vehicle body in small offset collision conditions, improving brand competitiveness, and having a good weight reduction effect on the vehicle body compared to conventional structures, thereby reducing the cost per vehicle.
[0063] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.
Claims
1. A top beam structure, characterized in that: It includes an inner reinforcement plate of the upper side beam and an outer reinforcement plate of the upper side beam; The upper side beam inner reinforcement plate cooperates with the upper side beam outer reinforcement plate to form a collision force transmission cavity; The inner diameter of the collision force transmission cavity gradually increases from front to back along the front-rear direction of the vehicle.
2. The roof rail structure according to claim 1, characterized in that: The upper side beam outer reinforcement plate comprises a front outer reinforcement plate, a middle outer reinforcement plate and a rear outer reinforcement plate which are sequentially arranged along the front-rear direction of the vehicle; The front outer reinforcement plate is installed at the front of the upper side beam inner reinforcement plate to form a first force transmission section; The middle outer reinforcement plate is installed in the middle of the upper side beam inner reinforcement plate to form a second force transmission section; The rear outer reinforcement plate is installed at the rear of the upper side beam inner reinforcement plate to form a third force transmission section; The first force transmission section, the second force transmission section and the third force transmission section cooperate to form the collision force transmission cavity.
3. The roof rail structure according to claim 1, characterized in that: An arc-shaped guiding structure is formed on the outer side of the upper side beam outer reinforcement plate.
4. A vehicle body front structure, characterized in that: It comprises a front longitudinal beam structure, an A-pillar and a roof beam structure as claimed in any one of claims 1 to 3; The front end of the upper side beam structure is connected to the front end of the front longitudinal beam structure, the rear end of the upper side beam structure is connected to the upper part of the A-pillar, and the rear end of the front longitudinal beam structure is connected to the lower part of the A-pillar.
5. The vehicle body front structure according to claim 4, characterized in that: The front structure of the vehicle body includes a front longitudinal beam front end reinforcement arranged along the left-right direction of the vehicle, the front longitudinal beam front end reinforcement runs through the front end of the front longitudinal beam structure, the first end of the front longitudinal beam front end reinforcement extends to the inner side of the front longitudinal beam structure, and the second end of the front longitudinal beam front end reinforcement extends to the outer side of the front longitudinal beam structure.
6. The vehicle body front structure according to claim 5, characterized in that: The front end reinforcement of the front longitudinal beam is a tubular reinforcement, and the cross-sectional shape of the tubular reinforcement along the left-right direction of the vehicle is an ellipse.
7. The vehicle body front structure according to claim 4, characterized in that: The front longitudinal beam structure also includes a front longitudinal beam outer plate assembly, a front longitudinal beam inner plate assembly and a front wall panel bottom reinforcement plate assembly; The front end of the front longitudinal beam outer panel assembly is connected to the front end of the upper side beam structure, and the rear end of the front longitudinal beam outer panel assembly is connected to the lower part of the A-pillar; The front longitudinal beam inner panel assembly is arranged on the front end portion of the front longitudinal beam outer panel assembly, the front wall panel bottom reinforcement panel assembly is arranged on the rear end portion of the front longitudinal beam outer panel assembly, and the rear end of the front longitudinal beam inner panel assembly is connected to the front end of the front wall panel bottom reinforcement panel assembly.
8. The vehicle body front structure according to claim 7, characterized in that: The front longitudinal beam outer panel assembly includes a subframe outer mounting plate, a front longitudinal beam outer reinforcement plate and a longitudinal beam rear upper connecting plate; the subframe outer mounting plate is arranged along the vehicle up-down direction, the front longitudinal beam outer reinforcement plate is arranged along the vehicle front-back direction, the longitudinal beam rear upper connecting plate is arranged along the vehicle left-right direction, the subframe outer mounting plate is connected to the front end of the front longitudinal beam outer reinforcement plate, the front end of the longitudinal beam rear upper connecting plate is connected to the rear end of the front longitudinal beam outer reinforcement plate, and the rear end of the longitudinal beam rear upper connecting plate is connected to the lower part of the A-pillar; The front longitudinal beam inner plate assembly includes a subframe inner mounting plate and a front longitudinal beam inner reinforcement plate, the subframe inner mounting plate is arranged along the up-down direction of the vehicle and matches the subframe outer mounting plate, the front longitudinal beam inner reinforcement plate is arranged along the front-back direction of the vehicle and matches the front longitudinal beam outer reinforcement plate, and the subframe inner mounting plate is connected to the front end of the front longitudinal beam inner reinforcement plate; The front wall panel bottom reinforcement plate assembly includes a subframe rear mounting plate and a longitudinal beam rear lower connecting plate, the subframe rear mounting plate is arranged along the front-to-rear direction of the vehicle, the longitudinal beam rear lower connecting plate is arranged along the left-right direction of the vehicle, and the longitudinal beam rear lower connecting plate is arranged at the bottom of the longitudinal beam rear upper connecting plate; the front end of the subframe rear mounting plate is connected to the rear end of the front longitudinal beam inner reinforcement plate, the rear end of the subframe rear mounting plate is connected to the front end of the longitudinal beam rear lower connecting plate, and the rear end of the longitudinal beam rear lower connecting plate is connected to the lower part of the A-pillar.
9. The vehicle body front structure according to claim 7, characterized in that: The vehicle body front structure also includes a subframe front mounting plate and a front anti-collision beam mounting plate; The sub-frame front mounting plate is arranged on the front end of the front longitudinal beam outer plate assembly, and the front anti-collision beam mounting plate is arranged on the sub-frame front mounting plate.
10. An automobile, characterized in that: The vehicle body front structure comprises any one of claims 4 to 9.