Reinforced A column structure and flat-top vehicle

Abstract

The utility model discloses a reinforced A column structure and a flat-top vehicle, the reinforced A column structure comprises an inner side plate and an outer side plate, the inner side plate and the outer side plate respectively comprise a convex area extending along the length direction of the vehicle, and the inner side plate and the outer side plate are fixedly connected to form a cavity structure; the protruding area is at least partially embedded into the concave structure of the doorsill inner plate assembly and is fixedly welded to the doorsill inner plate assembly. The inner side plate and the outer side plate which are split are combined to form the A-column structure, so that the A-column structure is easy to process, the inner side plate and the outer side plate are attached and fixed to form the cavity structure, and the protruding area is embedded into the threshold inner plate assembly, so that a supporting effect is provided for the A-column structure based on the threshold inner plate assembly when a vehicle is in frontal collision, and the safety of the vehicle is improved. Meanwhile, under the working condition of large collision force, the cavity structure can reduce energy transmitted into the cab through the energy absorption deformation effect, and therefore the safety of a driver is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle equipment technology, and in particular to a reinforced A-pillar structure and a flat-head vehicle. Background Technology

[0002] Cabin-front vehicles are mostly commercial vehicles. They are heavy and have high inertia. Furthermore, the design distance between the front of the cab and the driver's reference point is usually short, posing a serious threat to the driver's life in a frontal collision. Currently, the A-pillars of cab-front vehicles are mostly sheet metal structures located within the outer side panel. In a frontal impact, they rely on their own strength, primarily their thickness along the vehicle's length, to protect the driving area. However, in high-energy impacts, they are prone to fracture failure, leading to driver injury.

[0003] Therefore, how to improve the safety of the driver's area of ​​a cab-over vehicle is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a reinforced A-pillar structure to improve the safety of the driver's area in a cab-over vehicle.

[0005] Another objective of this invention is to provide a flat-head vehicle that includes the aforementioned reinforced A-pillar structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A reinforced A-pillar structure includes an inner side panel and an outer side panel, wherein the inner side panel and the outer side panel each include a raised area extending along the length direction of the vehicle, and the inner side panel and the outer side panel are fixedly connected to form a cavity structure; the raised area is at least partially embedded in a recessed structure of the inner sill panel assembly and welded and fixed to the inner sill panel assembly.

[0008] Preferably, in the above-mentioned reinforced A-pillar structure, the protruding area is located at one end of the inner side plate and the outer side plate, and both the inner side plate and the outer side plate are L-shaped structures.

[0009] Preferably, the above-mentioned reinforced A-pillar structure further includes a reinforcing plate, which is a bent plate and disposed within the cavity structure of the inner side plate and the outer side plate, and the reinforcing plate covers the bent areas on the inner side plate and the outer side plate where the protrusion area is disposed.

[0010] Preferably, in the above-mentioned reinforced A-pillar structure, the protruding extension distance of the reinforcing plate in the vehicle length direction is not less than 220mm.

[0011] Preferably, in the above-mentioned reinforced A-pillar structure, ribs are provided on both sides of the reinforcing plate, and the ribs contact and are spot-welded to the inner and outer side plates.

[0012] Preferably, in the above-mentioned reinforced A-pillar structure, reinforcing ribs are respectively provided on the side of the inner side plate and the outer side plate facing each other.

[0013] Preferably, in the above-mentioned reinforced A-pillar structure, the inner side panel and the inner sill panel assembly are pre-assembled into an integral structure by spot welding; the outer side panel and the outer side panel are pre-assembled into an integral structure by spot welding.

[0014] Preferably, in the above-mentioned reinforced A-pillar structure, the outer side panel has raised areas at both ends in the vehicle height direction.

[0015] Preferably, in the above-mentioned reinforced A-pillar structure, the raised area protrudes towards the rear of the vehicle relative to the inner side panel and the outer side panel.

[0016] A flat-front vehicle, comprising the reinforced A-pillar structure described in any of the above embodiments.

[0017] As can be seen from the above technical solution, the suspension mounting structure provided by this utility model mainly includes an inner side plate and an outer side plate, which together form the main structure of the A-pillar. The inner side plate and the outer side plate are respectively provided with raised areas, which are structures extending along the length direction of the vehicle to enhance the rigidity of the outer side plate and the inner side plate in the length direction of the vehicle. At least part of the structure of the raised area is embedded in the recessed structure of the inner sill plate assembly to provide good support in the length direction of the vehicle, thereby reducing the risk of failure of the A-pillar in frontal collision. At the same time, the cavity structure formed by the inner side plate and the outer side plate can also provide energy absorption effect through deformation under severe collision conditions, thereby reducing the collision energy transmitted to the driver's cab and improving the safety of the driver. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the assembly of the reinforced A-pillar structure on a vehicle according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the outer side panel structure;

[0021] Figure 3 This is a schematic diagram of the inner side panel structure;

[0022] Figure 4 This is a schematic diagram of the reinforced plate structure.

[0023] Among them, 10-inner side panel; 20-outer side panel; 30-protruding area; 40-reinforcing plate; 510-door sill inner panel assembly; 520-front assembly; 530-floor panel; 540-longitudinal beam assembly; 550-side outer panel. Detailed Implementation

[0024] The core of this utility model lies in disclosing a reinforced A-pillar structure to improve the safety of the driver's area in a cab-over vehicle.

[0025] Another objective of this invention is to provide a flat-head vehicle that includes the aforementioned reinforced A-pillar structure.

[0026] To enable those skilled in the art to better understand the present invention, embodiments of the present invention will be described below with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete contents of the configurations shown in the following embodiments are not limited to those necessary for the solution of the invention as described in the claims.

[0027] like Figures 1-4 As shown in the figure, the reinforced A-pillar structure provided in this embodiment of the present invention mainly consists of an inner side plate 10 and an outer side plate 20 forming the main structure of the A-pillar. Both the inner side plate 10 and the outer side plate 20 are designed with a raised area 30. It should be noted that the raised area 30 extends along the length direction of the vehicle, relative to the raised area of ​​the inner side plate 10 and the outer side plate 20. Compared with the existing A-pillar structure with a single panel in the vehicle, the above structure not only increases the thickness of the A-pillar and enhances its structural strength through the combination of the inner side plate 10 and the outer side plate 20, but also increases the cross-sectional dimensions of the A-pillar in the length direction of the vehicle through the setting of the raised area 30, thereby enhancing its structural strength in the length direction of the vehicle when the vehicle is subjected to a frontal collision, and thus reducing the risk of damage to the A-pillar composed of the inner side plate 10 and the outer side plate 20.

[0028] Furthermore, both the inner side panel 10 and the outer side panel 20 are designed with raised areas 30 extending along the length of the vehicle. The inner side panel 10 and the outer side panel 20 are fixedly connected as a single structure, forming a cavity. The raised areas 30 on the inner side panel 10 and the outer side panel 20 together form a cavity extending along the length of the vehicle. It should be noted that this cavity structure not only effectively reduces the weight of the A-pillar but also absorbs energy through deformation within the cavity when subjected to external impact. In the event of a low-intensity frontal collision, the combined structure of the inner side panel 10 and the outer side panel 20 provides good collision resistance, preventing damage to the passenger compartment. In the event of a more severe frontal collision, the cavity structure formed by the inner side panel 10 and the outer side panel 20 can absorb some of the impact energy through deformation, reducing the impact energy intruding into the driving area, thereby improving vehicle safety.

[0029] It should also be noted that the inner side plate 10 and the outer side plate 20 of the separate components combine to form an A-pillar with a cavity structure, which can reduce the production difficulty and production cost while realizing the cavity structure of the A-pillar.

[0030] Furthermore, based on the vehicle's structure, the raised area 30 is at least partially embedded in the recessed structure of the sill inner panel assembly 510 and welded to it. This embedding and welding connection method forms an integral structure between the A-pillar and the sill inner panel assembly 510, enhancing the connection strength between the A-pillar and other body components. It also provides a good support point for the A-pillar along the vehicle's length, allowing it to smoothly transmit the impact force to the rear of the vehicle during a frontal collision through its raised area 30 structure. This effectively disperses the impact force to other parts of the body, preventing the A-pillar from bearing excessive impact force alone, thereby reducing the deformation of the A-pillar and protecting the safety of passengers inside the vehicle.

[0031] Furthermore, the raised areas 30 on the inner side panel 10 and the outer side panel 20 can be set at any position on the inner side panel 10 and the outer side panel 20, only needing to extend along the length direction of the vehicle to improve the rigidity of the A-pillar in the length direction of the vehicle. In order to improve the regularity of the structure, in some embodiments of this utility model, the raised areas 30 are set at the ends of both the inner side panel 10 and the outer side panel 20, so that both the inner side panel 10 and the outer side panel 20 are formed into L-shaped structures. It should be noted that the L-shaped structure design gives the A-pillar good structural support performance in both the length and height directions of the vehicle, and makes it easier to connect and cooperate with other parts of the vehicle, thus forming a more stable body structure.

[0032] Building upon the aforementioned embodiments, to further enhance the structural strength of the A-pillar, a reinforcing plate 40 is provided within the cavity structure formed by the L-shaped inner side plate 10 and outer side plate 20. Specifically, the reinforcing plate 40 is a bent plate, allowing it to better adapt to the cavity structure of the inner side plate 10 and outer side plate 20, thereby achieving better structural matching and support. Specifically, the reinforcing plate 40 covers the bent areas formed by the protrusions 30 on the inner side plate 10 and outer side plate 20. Here, "covering" refers to the bent portion of the plate fitting snugly against the bent portions of the inner side plate 10 and outer side plate 20, thus improving the structural strength of the A-pillar in the bent area. During a vehicle collision, especially when the impact force acts on the bent area of ​​the A-pillar, the reinforcing plate 40 can effectively disperse and absorb the impact force, preventing excessive deformation in the bent area. Simultaneously, the reinforcing plate 40 also enhances the overall rigidity of the A-pillar, improving the vehicle's stability and handling performance during driving.

[0033] Furthermore, based on the above embodiment, the reinforcing plate 40 extends protrudingly for at least 220mm along the length of the vehicle to ensure that it covers a sufficient area of ​​the A-pillar along the vehicle's length, providing effective structural support for the A-pillar. In the event of a collision, the longer reinforcing plate 40 can better disperse and absorb impact forces from different directions, reducing the degree of deformation of the A-pillar during the collision. Simultaneously, the sufficiently long reinforcing plate 40 also allows the breakpoint of the cavity structure to be positioned further back during A-pillar deformation, increasing the length of the deformation area to absorb more kinetic energy and reduce the collision energy transmitted to the driver's area, thus improving driver safety.

[0034] In addition, the above structure can also improve the durability of the vehicle to a certain extent. With the help of the longer length of the reinforcing plate 40, it can better resist fatigue damage caused by long-term use, thereby extending the service life of the A-pillar and reducing the vehicle's maintenance costs.

[0035] To enhance the reinforcing effect of the reinforcing plate 40 on the A-pillar, in some embodiments of this invention, rib structures are provided on opposite sides of the reinforcing plate 40, namely the side facing the inner plate 10 and the side facing the outer plate 20. The height of the ribs is such that the inner plate 10 and the outer plate 20 are in contact, allowing the reinforcing plate 40 to partially fill the cavity within the cavity structure of the inner plate 10 and the outer plate 20. The ribs are spot-welded to the inner plate 10 and the outer plate 20. In areas where operation is difficult, the inner plate 10 and the outer plate 20 can be perforated to allow spot welding to the ribs.

[0036] It should be noted that the above structure makes the connection between the reinforcing plate 40 and the inner plate 10 and the outer plate 20 more robust and reliable, effectively enhancing the connection strength between the reinforcing plate 40 and the inner plate 10 and the outer plate 20. When the vehicle is subjected to external impact, this robust connection method ensures that there will be no relative displacement between the reinforcing plate 40 and the inner plate 10 and the outer plate 20, thereby better fulfilling the supporting and reinforcing role of the reinforcing plate 40. At the same time, the spot welding fixing method can also ensure the structural strength and reliability of the connection part, avoiding structural failure due to welding defects.

[0037] Furthermore, the rib design also enhances the structural rigidity of the reinforcing plate 40 itself. During vehicle operation, the reinforcing plate 40 may be subjected to various complex stresses, and the presence of the ribs effectively enhances the deformation resistance of the reinforcing plate 40, enabling it to maintain good structural performance during long-term use.

[0038] Furthermore, based on the A-pillar's location, to improve the ease of A-pillar assembly, in the reinforced A-pillar structure provided in this embodiment, the inner side panel 10 is pre-assembled with the sill inner panel assembly 510 by spot welding into an integral structure. During vehicle manufacturing, it is further welded to the front bulkhead assembly 520, floor panel 530, and longitudinal beam assembly 540 to form the lower body assembly structure. The outer side panel 20 is pre-assembled with the side outer panel 550 by spot welding into an integral structure, i.e., the side assembly structure. The lower body assembly structure is then welded and fixed to the side assembly structure, and welded with other necessary components to form the body-in-white assembly. This spot welding pre-assembly method makes the connection between the A-pillar and other body parts tighter and stronger, effectively enhancing the connection strength between the A-pillar and the sill inner panel assembly 510. Furthermore, fixing the inner side panel 10 and outer side panel 20 to other vehicle structures separately before docking allows for assembly according to the overall vehicle production process, reducing the assembly difficulty and cost of the A-pillar.

[0039] Furthermore, in some embodiments of this utility model, the outer side panel 20 is provided with raised areas 30 at both ends in the vehicle height direction, so that the A-pillar has raised structures extending along the vehicle length direction at both ends in the vehicle height direction, which can further optimize the force transmission effect of the A-pillar when subjected to collision force, thereby reducing the deformation of the outer side panel 20. At the same time, this design can also improve the overall rigidity of the outer side panel 20, and enhance the vehicle's handling stability and driving safety.

[0040] It should be noted that in the above embodiment, the inner side plate 10 and the outer side plate 20 are structurally correspondingly arranged so as to form a cavity structure. Specifically, a protruding area 30 is provided on the inner side plate 10 at the position corresponding to the outer side plate 20 to complete the docking and fitting.

[0041] Furthermore, in some embodiments of this utility model, the raised area 30 protrudes towards the rear of the vehicle compared to the inner side plate 10 and the outer side plate 20, so as to receive the collision force through a larger cross-sectional area and transmit the collision force towards the rear of the vehicle through the raised area 30 with a smaller cross-section, thereby improving the collision force transmission effect of the A-pillar and improving the safety of the driving area.

[0042] Furthermore, this utility model embodiment also provides a cab-over vehicle, which includes the reinforced A-pillar structure provided in any of the above embodiments. It should be noted that since the reinforced A-pillar structure has the technical effects provided in any of the above embodiments, the cab-over vehicle also has the aforementioned technical effects, and will not be repeated here.

[0043] The terms "first," "second," "left side," and "right side," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reinforced A-pillar structure, characterized by, The inner side plate and the outer side plate each comprise a protruding area extending along the length direction of the vehicle, and the inner side plate and the outer side plate are fixedly connected to form a cavity structure; the protruding area is at least partially embedded in a recessed structure of a rocker inner panel assembly and is welded and fixed with the rocker inner panel assembly.

2. The reinforced A-pillar structure of claim 1, wherein The protruding area is arranged at one end of the inner side plate and the outer side plate, and the inner side plate and the outer side plate are both L-shaped structures.

3. The reinforced A-pillar structure of claim 2, wherein A reinforcing plate is further included, the reinforcing plate is a bent plate member and is arranged in the cavity structure of the inner side plate and the outer side plate, and the reinforcing plate covers the bending area of the inner side plate and the outer side plate on which the protruding area is arranged.

4. The reinforced A-pillar structure of claim 3, wherein The protruding extension distance of the reinforcing plate in the length direction of the vehicle is not less than 220 mm.

5. The reinforced A-pillar structure of claim 3, wherein The opposite sides of the reinforcing plate are both provided with a protruding rib, the protruding rib is in contact with the inner side plate and the outer side plate and is spot-welded and fixed.

6. The reinforced A-pillar structure of claim 1, wherein The side of the inner side plate and the outer side plate facing each other is respectively provided with a reinforcing rib.

7. The reinforced A-pillar structure of claim 1, wherein The inner side plate is spot-welded and pre-assembled as an integral structure with the rocker inner panel assembly; the outer side plate is spot-welded and pre-assembled as an integral structure with a side outer panel.

8. The reinforced A-pillar structure of claim 1, wherein The outer side plate is provided with the protruding area at both ends in the height direction of the vehicle.

9. The reinforced A-pillar structure of claim 1, wherein The protruding area protrudes towards the tail of the vehicle compared to the inner side plate and the outer side plate.

10. A scooter, characterized in that The reinforcing type A-pillar structure comprises the reinforcing type A-pillar structure as claimed in any one of claims 1-9.

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