High-strength automobile doorsill assembly

Abstract

The utility model discloses a high-strength automobile doorsill assembly, which relates to the technical field of automobile manufacturing and comprises a doorsill inner plate, a doorsill outer plate, a first reinforcing plate, a second reinforcing plate, a third reinforcing plate, a fourth reinforcing plate, a fifth reinforcing plate, a sixth reinforcing plate, a fifth reinforcing plate and a sixth reinforcing plate, the doorsill inner plate and the doorsill outer plate are oppositely buckled to form a cavity between the doorsill inner plate and the doorsill outer plate, and the first reinforcing plate and the second reinforcing plate are arranged in the doorsill outer plate. And the reinforcing connecting assembly is arranged between the first reinforcing plate and the second reinforcing plate and used for connecting the first reinforcing plate and the second reinforcing plate and increasing the strength between the first reinforcing plate and the second reinforcing plate. The overall strength and supporting performance of the doorsill assembly can be improved, so that the protective effect of the doorsill is enhanced, the strength of the side face of an automobile body is guaranteed, the side collision performance of an automobile is good, the collision safety coefficient of the automobile is improved, the purpose of reasonable crushing deformation is achieved, and the service life of the automobile is prolonged. And good collision force transmission and energy absorption effects are achieved, the collision energy absorption capacity is enhanced, and then the safety of a driver and passengers is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, and particularly relates to a high-strength automobile sill assembly. Background Art

[0002] With the continuous improvement of the economic level, the safety factor of automobiles has become one of the primary conditions for people to purchase automobiles. Among them, the side impact safety factor, as a necessary condition to directly ensure the safety of drivers, has become one of the goals that the entire automobile industry is committed to improving; in the design of automobile body structures, the automobile sill structure plays a crucial role in protecting the safety of passengers when the automobile collides. Whether it is a frontal collision or a side collision, if the structural strength of the sill structure is insufficient, it will cause the passenger compartment to be invaded by foreign objects, and then the people in the passenger compartment will be injured by foreign objects. On traditional automobile bodies, the traditional sill assembly mainly consists of an inner sill panel and an outer sill panel, and a sill reinforcement panel.

[0003] The automobile sill assembly disclosed in the prior art CN 217672878 U includes a sill and a sill reinforcement member. Although this utility model can well prevent the deformation of the occupant compartment under heavy mass, protect the safety of passengers, strengthen the structural strength and absorb collision energy, the reinforcement panel structure of this utility model is relatively simple, and the strength and support performance are still weak. Therefore, the reinforcement and protection effect and energy absorption effect it can achieve are average, which affects the strength of the vehicle body side, resulting in a reduction in the side impact performance of the automobile, and there are still potential collision safety hazards in the automobile. Therefore, there is still room for improvement. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a high-strength automobile sill assembly, which solves the problems put forward in the above background art.

[0006] (2) Technical Solutions

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: a high-strength automobile sill assembly includes an inner sill panel and an outer sill panel, which are relatively buckled to form a cavity in the middle; a first reinforcement panel is arranged inside the inner sill panel to increase the strength of the inner sill panel; a second reinforcement panel is arranged inside the outer sill panel to increase the strength of the outer sill panel; a reinforcement connection assembly is arranged between the first reinforcement panel and the second reinforcement panel to connect the first reinforcement panel and the second reinforcement panel and increase the strength between the two.

[0008] Optionally, the outer surface of the inner sill panel is provided with an inwardly concave inner panel convex portion for increasing strength, and the upper and lower edges of the inner sill panel are bent outward to form inner panel flanges.

[0009] Optionally, the outer surface of the outer threshold panel is provided with an inner convex portion of the outer panel that is used to increase strength and is recessed inward, and the upper and lower edges of the outer threshold panel are bent outward to form outer panel flanges. The outer panel flanges at the upper and lower parts are respectively welded and connected to the inner panel flanges at the upper and lower parts in the transverse direction.

[0010] Optionally, the first reinforcing plate is in a groove shape. The first reinforcing plate is provided with an inner convex portion of the reinforcing plate that is used to increase strength and is recessed inward. A plurality of first through holes are formed in the inner convex portion of the reinforcing plate, and the upper and lower edges of the first reinforcing plate are bent outward to form first reinforcing plate flanges for welding transversely inside the inner threshold panel.

[0011] Optionally, the second reinforcing plate is in a groove shape. The middle section of the grooved second reinforcing plate is inserted into the inner convex portion of the reinforcing plate, and a plurality of second through holes communicating with the plurality of first through holes are formed at the middle section position. Both symmetrical surfaces of the grooved second reinforcing plate are bent, and the number of bending segments is not less than two. The upper and lower parts of the second reinforcing plate are provided with second reinforcing plate flanges for welding transversely inside the outer threshold panel.

[0012] Optionally, the strengthening connection assembly includes: a third reinforcing plate with a T-shaped cross-section, which is arranged on the inner side of the inner convex portion of the first reinforcing plate to increase the strength at the connection between the first reinforcing plate and the second reinforcing plate; a plurality of studs, which are respectively welded on the third reinforcing plate and sequentially penetrate through the first through holes and the second through holes, and nuts are installed on the studs to install and fix the third reinforcing plate.

[0013] Optionally, a plurality of through grooves corresponding to the positions of the nuts are formed in the inner convex portion of the outer panel for installing the nuts.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The first reinforcing plate and the second reinforcing plate can respectively improve the strength of the inner threshold panel and the outer threshold panel. Together with the inner convex portion of the inner panel and the inner convex portion of the outer panel, the strength and support of the inner threshold panel and the outer threshold panel can be made stronger. At the same time, by strengthening the connection between the first reinforcing plate and the second reinforcing plate through the strengthening connection assembly, the strength and stability at the connection between the two can be effectively improved. Together with the third reinforcing plate with a T-shaped cross-section, the overall strength and support performance of the threshold assembly can be further improved, thereby strengthening the protective effect of the threshold, ensuring the strength of the side of the vehicle body, making the side collision performance of the vehicle better, and improving the collision safety factor of the vehicle;

[0017] 2. The purpose of achieving reasonable crushing deformation is realized, and it plays a good role in collision force transmission and energy absorption, strengthens the ability to absorb collision energy, improves the collision safety performance of the whole vehicle, and thus ensures the safety of the driver and passengers. Moreover, while improving the energy absorption effect, the structure will not be too bulky, so it also meets the development requirements of vehicle lightweighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front perspective structural schematic diagram of the present utility model;

[0019] Figure 2 It is a rear perspective structural schematic diagram of the present utility model;

[0020] Figure 3 It is a side sectional structural schematic diagram of the present utility model;

[0021] Figure 4 It is an exploded perspective structural schematic diagram of the present utility model;

[0022] Figure 5 It is an exploded perspective structural schematic diagram of the strengthening component of the present utility model.

[0023] In the figures: 1, inner sill panel; 101, inner convex part of the inner panel; 102, inner panel flange; 2, outer sill panel; 201, inner convex part of the outer panel; 202, through slot; 203, outer panel flange; 3, first strengthening plate; 301, inner convex part of the strengthening plate; 302, first strengthening plate flange; 303, first through hole; 4, second strengthening plate; 401, second strengthening plate flange; 402, second through hole; 5, strengthening connection assembly; 501, third strengthening plate; 502, stud; 503, nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model provides an embodiment of a high-strength vehicle sill assembly as shown in Figures 1 to 5 and includes:

[0026] The inner sill panel 1 and the outer sill panel 2 are relatively buckled so that a cavity is formed in the middle of the two. When a side collision occurs to the vehicle, this cavity can play a certain role in energy absorption;

[0027] The outer surface of the inner sill panel 1 is provided with an inner panel inner convex part 101 which is used to increase strength and is recessed inward. The upper and lower edges of the inner sill panel 1 are both bent outward to form inner panel flanges 102, which can effectively improve the overall strength and support of the inner sill panel 1;

[0028] The outer surface of the outer sill panel 2 is provided with an outer panel inner convex part 201 which is used to increase strength and is recessed inward. The upper and lower edges of the outer sill panel 2 are both bent outward to form outer panel flanges 203, which can also effectively improve the overall strength and support of the outer sill panel 2. The upper and lower outer panel flanges 203 are respectively welded and connected to the upper and lower inner panel flanges 102 in the transverse direction;

[0029] The first reinforcing plate 3 is arranged inside the inner sill panel 1 and is used to further increase the strength of the inner sill panel 1;

[0030] The first reinforcing plate 3 is in a groove shape. The first reinforcing plate 3 is provided with a reinforcing plate inner convex part 301 which is used to increase strength and is recessed inward to improve the strength of the first reinforcing plate 3. A plurality of first through holes 303 are opened inside the reinforcing plate inner convex part 301. The upper and lower edges of the first reinforcing plate 3 are both bent outward to form first reinforcing plate flanges 302, which are used to be welded transversely inside the inner sill panel 1;

[0031] The second reinforcing plate 4 is arranged inside the outer sill panel 2 and is used to further increase the strength of the outer sill panel 2;

[0032] The second reinforcing plate 4 is in a groove shape. The middle section of the grooved second reinforcing plate 4 is inserted into the reinforcing plate inner convex part 301. A plurality of second through holes 402 which are respectively communicated with the plurality of first through holes 303 are opened at the middle section position. Both symmetrical surfaces of the grooved second reinforcing plate 4 are bent, and the number of bent segments is not less than two. The upper and lower parts of the second reinforcing plate 4 are both provided with second reinforcing plate flanges 401, which are used to be welded transversely inside the outer sill panel 2;

[0033] When a side collision of the vehicle causes the outer sill panel 2 and the inner sill panel 1 to deform due to the impact, the outer sill panel 2 will have a certain concave deformation. At this time, the cavity between the inner sill panel 1 and the outer sill panel 2 can play an effective energy absorption effect. Moreover, the impact force can squeeze the second reinforcing plate 4 through the outer sill panel 2, so that the middle section of the second reinforcing plate 4 further squeezes the reinforcing plate inner convex part 301 on the first reinforcing plate 3, so that the first reinforcing plate 3 further deforms and sinks in the concave direction of the reinforcing plate inner convex part 301, so as to induce the first reinforcing plate 3 to deform and sink by itself, which will also play a certain energy absorption role. Moreover, during this process, the upper and lower edge corners of the reinforcing plate inner convex part 301 will approach each other due to further sinking and squeeze the upper and lower bent surfaces of the second reinforcing plate 4, so that the bent surfaces are further bent, so as to induce the second reinforcing plate 4 to have a bending deformation, so it will also play a certain energy absorption effect;

[0034] The strengthening connection component 5 is arranged between the first strengthening plate 3 and the second strengthening plate 4 and is used for connecting the first strengthening plate 3 and the second strengthening plate 4 and increasing the strength between the two;

[0035] The strengthening connection component 5 includes:

[0036] The third strengthening plate 501, with a T-shaped cross-section, is arranged inside the inner convex part 301 of the upper strengthening plate of the first strengthening plate 3 and is used for increasing the strength at the connection between the first strengthening plate 3 and the second strengthening plate 4;

[0037] The studs 502, with a number of them, are respectively welded on the third strengthening plate 501, sequentially penetrate through the first through hole 303 and the second through hole 402, and nuts 503 are installed on the studs 502 for fixing and installing the third strengthening plate 501;

[0038] A number of through grooves 202 corresponding to the positions of the nuts 503 are opened inside the inner convex part 201 of the outer plate for installing the nuts 503.

[0039] When assembling the sill assembly, the third strengthening plate 501 can be first bonded inside the first strengthening plate 3 to ensure that the studs 502 penetrate through the corresponding first through holes 303, and then the first strengthening plate 3 is respectively welded inside the sill inner plate 1 and the second strengthening plate 4 is welded inside the sill outer plate 2, and then the sill inner plate 1 and the sill outer plate 2 are butted and welded into one body. At this time, the studs 502 also pass through the second through holes 402. Finally, the nuts 503 are tightened on the studs 502 through the through grooves 202 on the sill outer plate 2, and the assembly of the sill can be completed. At the same time, the first strengthening plate 3 and the second strengthening plate 4 are connected, thereby increasing the strength at the connection between the first strengthening plate 3 and the second strengthening plate 4. At the same time, the third strengthening plate 501 is fixed at the connection, which can further improve the strength of the connection.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A high-strength automobile door sill assembly, characterized in that: include: The threshold inner plate (1) and the threshold outer plate (2) are relatively buckled to form a cavity in the middle of the two. A first reinforcing plate (3) is arranged inside the threshold inner plate (1) and is used to increase the strength of the threshold inner plate (1); A second reinforcing plate (4) is disposed inside the threshold outer plate (2) and is used to increase the strength of the threshold outer plate (2); A reinforcing connection assembly (5) is provided between the first reinforcing plate (3) and the second reinforcing plate (4) and is used to connect the first reinforcing plate (3) and the second reinforcing plate (4) and increase the strength between the two; The first reinforcing plate (3) is groove-shaped, and is provided with an inner reinforcing plate convex portion (301) for increasing strength and recessed inwardly, and a plurality of first through holes (303) are provided in the inner reinforcing plate convex portion (301), and the upper and lower edges of the first reinforcing plate (3) are bent outwardly to form a first reinforcing plate flange (302) for transversely welding in the sill inner plate (1); the second reinforcing plate (4) is groove-shaped, and the middle section of the groove-shaped second reinforcing plate (4) is inserted into the inner reinforcing plate convex portion (301), and a plurality of second through holes (402) are provided in the middle section, which are respectively connected to the plurality of first through holes (303), and the two symmetrical surfaces of the groove-shaped second reinforcing plate (4) are both bent, and the number of bent sections is not less than two, and the upper and lower sections of the second reinforcing plate (4) are provided with a second reinforcing plate flange (401), which is used to be transversely welded in the sill outer plate (2); the reinforcing connection assembly (5) comprises: A third reinforcing plate (501) having a T-shaped cross-section and arranged on the inner side of the reinforcing plate inner convex portion (301) on the first reinforcing plate (3) to increase the strength of the connection between the first reinforcing plate (3) and the second reinforcing plate (4); A plurality of studs (502) are respectively welded on the third reinforcing plate (501) and pass through the first through hole (303) and the second through hole (402) in sequence, and a nut (503) is installed on the stud (502) for installing and fixing the third reinforcing plate (501).

2. A high-strength automobile door sill assembly according to claim 1, characterized in that: The outer surface of the rocker inner plate (1) is provided with an inner plate inner convex portion (101) which is recessed inwards and used for increasing strength, and the upper and lower edges of the rocker inner plate (1) are both bent outwards to form an inner plate flange (102).

3. A high-strength automobile door sill assembly according to claim 2, characterized in that: The outer surface of the threshold outer panel (2) is provided with an outer panel inner convex portion (201) which is recessed inwardly and is used to increase strength, and the upper and lower edges of the threshold outer panel (2) are both bent outwardly to form outer panel flanges (203), and the upper and lower outer panel flanges (203) are respectively welded to the upper and lower inner panel flanges (102) in the transverse direction.

4. A high-strength automobile door sill assembly according to claim 3, characterized in that: A plurality of through slots (202) corresponding to the positions of the nuts (503) are provided in the inner convex portion (201) of the outer plate and are used for installing the nuts (503).

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