High-strength thermal forming vehicle body A column structure
By setting the first and second reinforcement plates in the automotive A-pillar structure and using welding holes and arc-shaped reinforcement plates, the problem of individual support of the existing A-pillar reinforcement plates is solved, and the high strength and toughness of the A-pillar are improved.
Patent Information
- Application Number
- CN202422110810.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The reinforcement plates of existing automobile A-pillar can only play a supporting role alone, and the strength of the A-pillar cannot be effectively improved.
By providing a first reinforcement plate and a second reinforcement plate between the A-column peripheral plate and the inner peripheral plate, the second reinforcement plate is bent with peaks and valleys, and welding holes are provided on the sides of each plate, and supporting force and lateral strength are improved by using convex limits and arc-shaped reinforcement plates, and combining with the deformation cavity to absorb energy, the impact force is reduced.
The mutual cooperation of the reinforcement plates is achieved, the overall strength and toughness of the A-pillar is improved, deformation and deviation are prevented, and resistance to lateral collisions is enhanced.
Smart Images
Figure CN223200135U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile A-pillar structures and relates to a high-strength thermoformed vehicle body A-pillar structure. Background Art
[0002] The A-pillar connects the front of the car to the roof and front cabin. Its structural design must not only minimize the driver's blind spot, but also withstand the risk of collision and bending. At the same time, it must also maintain a harmonious and aesthetically pleasing overall vehicle shape, thereby providing customers with a safe and enjoyable driving experience.
[0003] The existing automobile A-pillar mainly consists of an outer panel, an inner panel and a reinforcement plate located between the two. The number of reinforcement plates varies according to actual needs. The strength of the A-pillar is improved by the interaction between the reinforcement plate and the outer panel and the inner panel. However, multiple reinforcement plates can only play a supporting role individually and cannot cooperate with each other, which is not conducive to improving the strength of the A-pillar.
[0004] Based on this, we designed a high-strength thermoformed body A-pillar structure. Utility Model Content
[0005] The purpose of this utility model is to address the above-mentioned problems in the existing technology and propose a high-strength thermoformed body A-pillar structure. The technical problem to be solved by this device is: how to achieve the mutual cooperation of the automobile A-pillar reinforcement plates and further improve the strength of the A-pillar.
[0006] The purpose of this utility model can be achieved through the following technical solutions:
[0007] A high-strength thermoformed vehicle body A-pillar structure includes an A-pillar outer panel and an A-pillar inner panel, wherein a first reinforcing plate and a second reinforcing plate are arranged between the A-pillar outer panel and the A-pillar inner panel, and the second reinforcing plate is located between the first reinforcing plate and the A-pillar outer panel. The second reinforcing plate is bent to have a peak and a valley, and the peak is in close contact with the inner side of the A-pillar outer panel, and the valley is in close contact with the outer side of the first reinforcing plate. First welding holes are opened on both sides of the A-pillar outer panel, the A-pillar inner panel, the first reinforcing plate, and the second reinforcing plate.
[0008] The first reinforcing plate is provided with a plurality of convex portions, and the convex portions are distributed on both sides of the valley portion at a corresponding position of the second reinforcing plate.
[0009] With the above structure, the valley is limited by the convex parts on both sides, which can play a positioning role during welding. Moreover, when the A-pillar is hit from the outside, the valley of the second reinforcing plate can be prevented from shifting, thereby increasing the supporting force of the second reinforcing plate on the outer plate of the A-pillar. Moreover, after the first reinforcing plate is bent out of the convex part, the bearing capacity can be increased in the longitudinal direction, further improving the strength of the A-pillar.
[0010] An arc-shaped reinforcement plate is fixed on the inner side of the first reinforcement plate, and the outer side of the arc-shaped reinforcement plate is in contact with the inner side of the first reinforcement plate. Several second welding holes with equal spacing are provided on both sides of the arc-shaped reinforcement plate, and third welding holes aligned with the second welding holes are provided on both sides of the first reinforcement plate.
[0011] With the above structure, the second welding hole and the third welding hole can play a positioning role during welding, and the arc-shaped reinforcement plate can increase the lateral strength of the first reinforcement plate, preventing the first reinforcement plate from folding along the fold of the convex portion when the A-pillar is subjected to a side collision, thereby further improving the strength of the A-pillar.
[0012] The thickness of the arc-shaped reinforcement plate and the first reinforcement plate is 1.6-2.0 mm, and the thickness of the second reinforcement plate is 1.4-1.6 mm.
[0013] With the above structure, the arc-shaped reinforcement plate and the first reinforcement plate are thicker to provide sufficient supporting force, the second reinforcement plate relies on bending to increase strength, and the thinner thickness can reduce the weight of the vehicle body.
[0014] Two deformation cavities are provided between the second reinforcement plate and the A-pillar peripheral plate, and the deformation cavities are located on both sides of the A-pillar peripheral plate.
[0015] With the above structure, when both sides of the A-pillar outer panel are hit, the A-pillar outer panel can deform first and absorb energy, reducing the impact force, preventing the A-pillar from directly deforming as a whole, and improving the toughness of the A-pillar when hit.
[0016] Compared with the existing technology, this high-strength thermoformed body A-pillar structure has the following advantages:
[0017] 1. The first and second reinforcing plates cooperate with each other to provide support for the A-pillar outer plate. The second reinforcing plate is bent to form peaks and valleys, which can improve its own strength. The first reinforcing plate can limit the valley while supporting the second reinforcing plate, further improving the supporting strength of the second reinforcing plate, thereby improving the strength of the A-pillar.
[0018] 2. The curved reinforcement plate improves the transverse strength of the first reinforcement plate, preventing the first reinforcement plate from folding along the fold of the convex portion when the A-pillar is subjected to a side collision, thereby increasing the A-pillar's ability to withstand a side collision and further improving the strength of the A-pillar. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0021] Figure 3This is a schematic structural diagram of the arc-shaped reinforcement plate in the utility model;
[0022] Figure 4 It is a structural schematic diagram of the first reinforcing plate in the utility model.
[0023] In the figure: 1. A-pillar outer panel; 2. A-pillar inner panel; 3. First reinforcement plate; 301. Protrusion; 302. Second welding hole; 4. Second reinforcement plate; 401. Peak; 402. Valley; 5. First welding hole; 6. Arc-shaped reinforcement plate; 601. Third welding hole; 7. Deformation cavity. DETAILED DESCRIPTION
[0024] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0025] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0026] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.
[0027] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.
[0028] See also Figure 1-4This embodiment provides a high-strength thermoformed vehicle body A-pillar structure, including an A-pillar outer panel 1 and an A-pillar inner panel 2. A first reinforcing plate 3 and a second reinforcing plate 4 are arranged between the A-pillar outer panel 1 and the A-pillar inner panel 2, and the second reinforcing plate 4 is located between the first reinforcing plate 3 and the A-pillar outer panel 1. The second reinforcing plate 4 is bent to have a peak portion 401 and a valley portion 402, and the peak portion 401 is in close contact with the inner side of the A-pillar outer panel 1, and the valley portion 402 is in close contact with the outer side of the first reinforcing plate 3. First welding holes 5 are opened on both sides of the A-pillar outer panel 1, the A-pillar inner panel 2, the first reinforcing plate 3, and the second reinforcing plate 4.
[0029] The first reinforcing plate 3 and the second reinforcing plate 4 are formed by hot pressing, and the structure is more stable and not easy to deform. In addition, during assembly, preliminary welding positioning can be performed through the first welding hole 5 to prevent the structure from shifting during movement. Afterwards, the A-pillar outer panel 1, the A-pillar inner panel 2, the first reinforcing plate 3 and the second reinforcing plate 4 are welded as a whole by brazing.
[0030] The first reinforcing plate 3 is provided with a plurality of protrusions 301, and the protrusions 301 are distributed on both sides of the valley 402 at the corresponding position of the second reinforcing plate 4; the valley 402 is limited by the protrusions 301 on both sides, which can play a positioning role during welding, and when the A-pillar is hit from the outside, it can prevent the valley 402 of the second reinforcing plate 4 from shifting, thereby improving the supporting force of the second reinforcing plate 4 on the A-pillar outer plate 1, and after the first reinforcing plate 3 is bent to form the protrusions 301, it can increase the bearing capacity in the longitudinal direction, further improving the strength of the A-pillar.
[0031] An arc-shaped reinforcing plate 6 is fixed to the inner side of the first reinforcing plate 3, and the outer side of the arc-shaped reinforcing plate 6 is in contact with the inner side of the first reinforcing plate 3. A number of second welding holes 302 distributed at equal intervals are provided on both sides of the arc-shaped reinforcing plate 6, and third welding holes 601 aligned with the second welding holes 302 are provided on both sides of the first reinforcing plate 3. During welding, the second welding holes 302 and the third welding holes 601 can play a positioning role, and the arc-shaped reinforcing plate 6 can increase the lateral strength of the first reinforcing plate 3, and prevent the first reinforcing plate 3 from folding along the fold of the convex portion 301 when the A-pillar is subjected to a lateral collision, thereby further improving the strength of the A-pillar.
[0032] The thickness of the curved reinforcing plate 6 and the first reinforcing plate 3 is 1.6-2.0 mm, and the thickness of the second reinforcing plate 4 is 1.4-1.6 mm; the thicker thickness of the curved reinforcing plate 6 and the first reinforcing plate 3 can provide sufficient supporting force, and the second reinforcing plate 4 relies on bending to increase strength, and the thinner thickness can reduce the weight of the vehicle body.
[0033] Two deformation cavities 7 are provided between the second reinforcing plate 4 and the A-pillar outer panel 1, and the deformation cavities 7 are located on both sides of the A-pillar outer panel 1; when both sides of the A-pillar outer panel 1 are subjected to a collision, the A-pillar outer panel 1 can first deform and absorb energy, thereby reducing the impact force, preventing the A-pillar from directly deforming as a whole, and improving the toughness of the A-pillar when subjected to a collision.
[0034] In this embodiment, the above fixing methods are the most commonly used fixing connection methods in this field, such as welding.
[0035] The working principle of this utility model:
[0036] The second welding hole 302 and the third welding hole 601 can play a positioning role when welding the arc-shaped reinforcement plate 6 and the first reinforcement plate 3. Then, the A-pillar outer plate 1, the A-pillar inner plate 2, the first reinforcement plate 3 and the second reinforcement plate 4 are preliminarily welded and positioned on both sides through the first welding hole 5, and then brazed and fixed. In addition, the valley portion 402 is limited by the protrusions 301 on both sides, which can play a positioning role during welding. When the A-pillar is hit, the valley portion 402 is limited by the protrusions 301 on both sides, which can prevent the valley portion 402 of the second reinforcement plate 4 from deflecting. Thereby, the supporting force of the second reinforcing plate 4 on the A-pillar outer panel 1 is improved, and after the first reinforcing plate 3 is bent to form a convex portion 301, the bearing capacity can be increased in the longitudinal direction, thereby improving the strength of the A-pillar. The arc-shaped reinforcing plate 6 can increase the lateral strength of the first reinforcing plate 3, and prevent the first reinforcing plate 3 from folding along the fold of the convex portion 301 when the A-pillar is subjected to a lateral collision, thereby further improving the strength of the A-pillar. In addition, when both sides of the A-pillar outer panel 1 are collided, the A-pillar outer panel 1 can first deform and absorb energy, thereby reducing the impact force, preventing the A-pillar from directly deforming as a whole, and improving the toughness of the A-pillar when subjected to a collision.
[0037] The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of this patent.
Claims
1. A high-strength thermoformed vehicle body A-pillar structure, comprising an A-pillar outer panel (1) and an A-pillar inner panel (2), characterized in that: A first reinforcing plate (3) and a second reinforcing plate (4) are provided between the A-pillar outer plate (1) and the A-pillar inner plate (2), and the second reinforcing plate (4) is located between the first reinforcing plate (3) and the A-pillar outer plate (1). The second reinforcing plate (4) is bent to have a peak (401) and a valley (402), and the peak (401) is in close contact with the inner side of the A-pillar outer plate (1), and the valley (402) is in close contact with the outer side of the first reinforcing plate (3). First welding holes (5) are provided on both sides of the A-pillar outer plate (1), the A-pillar inner plate (2), the first reinforcing plate (3), and the second reinforcing plate (4).
2. The high-strength thermoformed vehicle body A-pillar structure according to claim 1, characterized in that: A plurality of convex portions (301) are provided on the first reinforcing plate (3), and the convex portions (301) are distributed on both sides of the valley portion (402) at corresponding positions of the second reinforcing plate (4).
3. A high-strength thermoformed vehicle body A-pillar structure according to claim 1 or 2, characterized in that: An arc-shaped reinforcing plate (6) is fixed on the inner side of the first reinforcing plate (3), and the outer side of the arc-shaped reinforcing plate (6) is in contact with the inner side of the first reinforcing plate (3). A plurality of second welding holes (302) distributed at equal intervals are provided on both sides of the arc-shaped reinforcing plate (6), and third welding holes (601) aligned with the second welding holes (302) are provided on both sides of the first reinforcing plate (3).
4. The high-strength thermoformed vehicle body A-pillar structure according to claim 3, characterized in that: The thickness of the arc-shaped reinforcement plate (6) and the first reinforcement plate (3) is 1.6-2.0 mm, and the thickness of the second reinforcement plate (4) is 1.4-1.6 mm.
5. The high-strength thermoformed vehicle body A-pillar structure according to claim 1, characterized in that: Two deformation cavities (7) are provided between the second reinforcement plate (4) and the A-pillar peripheral plate (1), and the deformation cavities (7) are located on both sides of the A-pillar peripheral plate (1).