High-energy-absorption thermal forming reinforcer for A column of vehicle body
By designing the A-pillar thermoformed reinforcement of the high-energy-absorbing body, the tear-absorbing of the deformed plate and thin plate is used to absorb the impact force, and combined with the support structure of the reinforcement plate, the problem of poor buffering effect of the existing automotive A-pillar reinforcement is solved, the energy absorption effect and structural strength of the A-pillar are improved, the safety in the car is ensured and the maintenance cost is reduced.
Patent Information
- Application Number
- CN202422402244.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-30
AI Technical Summary
When the existing A-pillar reinforcement parts are impacted, the buffering effect is poor, affecting the safety of the personnel in the car.
A high-energy-absorbing A-pillar thermal reinforcement is designed, including a structure composed of mounting plates, support plates, deformation plates, exterior expansion plates, thin plates and reinforcement plates. The impact force is absorbed through deformation of the deformation plates and tear of the thin plates, and the structural strength is improved through the support and connection of the reinforcement plates.
When the A-pillar is impacted, it provides effective cushioning, improves in-vehicle safety, and reduces maintenance costs in minor collisions.
Smart Images
Figure CN223224415U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile A-pillar reinforcement structures and relates to a high-energy-absorbing vehicle body A-pillar thermoforming reinforcement. 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] Existing automobile A-pillars are mainly composed of an outer panel, an inner panel, and a reinforcement member positioned between the two. The number of reinforcement plates varies according to actual needs. The strength of the A-pillar is improved through the interaction between the reinforcement member and the outer and inner panels. However, the reinforcement member can only improve the strength of the A-pillar. When the A-pillar is impacted, the impact force is poorly cushioned, and the impact force will be distributed on the frame, causing adverse effects on occupants.
[0004] Based on this, we designed a high energy-absorbing body A-pillar hot-formed reinforcement. 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-energy-absorbing body A-pillar thermoformed reinforcement. The technical problem to be solved by this device is: how to improve the energy absorption effect of the body A-pillar, provide a buffering effect when the A-pillar is impacted, and improve the safety inside the vehicle.
[0006] The purpose of this utility model can be achieved through the following technical solutions:
[0007] A high-energy-absorbing thermoformed reinforcement for an A-pillar of a vehicle body comprises a mounting plate fixed to the inner side of an inner panel of the A-pillar, a support plate being provided on the mounting plate, a deformation plate being fixed to a side of the support plate away from the mounting plate, two symmetrically distributed first outward expansion plates and a second outward expansion plate being integrally formed on both sides of the deformation plate, a plurality of equally spaced first thin plates being provided between the inner side of the first outward expansion plate and the support plate, a plurality of equally spaced second thin plates being provided between the second outward expansion plate and the support plate, and the first thin plates and the second thin plates being distributed alternately.
[0008] The first thin plate and the second thin plate are both provided with triangular tearing openings, and the triangular tearing openings are aligned with the support plate.
[0009] With the above structure, when the outer side of the A-pillar is impacted, the outer plate of the A-pillar will squeeze the first outer expansion plate and the second outer expansion plate to both sides. At this time, the middle of the deformed plate is supported by the support plate, but the supporting force on both sides is insufficient, and the deformed plate will bend toward the back along the support plate. At this time, the first thin plate and the second thin plate will be torn along the triangular tearing edge to absorb the impact and provide a buffering effect. Moreover, the bent deformed plate forms a broken line shape with greater strength. The first thin plate and the second thin plate will increase the connection strength between the first outer expansion plate, the second outer expansion plate and the deformed plate, thereby further increasing the strength of the A-pillar after energy absorption.
[0010] Two symmetrically distributed U-shaped reinforcement plates are provided between the side of the deformation plate close to the A-pillar inner panel and the A-pillar inner panel.
[0011] With the above structure, the U-shaped reinforcement plate can increase the bending resistance of the deformable plate when the deformable plate is bent by being squeezed and hung on the wall, thereby further improving the energy absorption effect of the deformable plate.
[0012] An arc-shaped reinforcement plate is provided between the first outward expansion plate and the second outward expansion plate, inner concave plates are provided at both ends of the arc-shaped reinforcement plate, and the side of the arc-shaped reinforcement plate away from the deformation plate is connected to the A-pillar outer plate.
[0013] With the above structure, when the A-pillar is impacted, the outer panel of the A-pillar squeezes the arc-shaped reinforcement plate inward, and the two inner concave plates squeeze the first outer expansion plate and the second outer expansion plate respectively, causing the deformation plate to bend, preventing the middle position of the outer panel of the A-pillar from being concave and unable to squeeze the first outer expansion plate and the second outer expansion plate, resulting in the deformation plate's energy absorption function not being fully exerted.
[0014] A corrugated plate is provided between the arc-shaped reinforcement plate and the A-pillar peripheral plate, and two sides of the corrugated plate are respectively connected to the A-pillar peripheral plate and the arc-shaped reinforcement plate by brazing.
[0015] With the above structure, when the outer side of the A-pillar is impacted, the deformation of the corrugated plate will first absorb part of the impact force and provide a certain deformation space. When the A-pillar is slightly colliding, only the corrugated plate and the A-pillar outer plate need to be repaired, reducing maintenance costs.
[0016] The thickness of the arc-shaped reinforcement plate is 1.6-2.0 mm, and the thickness of the deformation plate is 1.4-1.6 mm.
[0017] With the above structure, when a collision occurs, the arc-shaped reinforcement plate will squeeze the deformation plate. Since the arc-shaped reinforcement plate is thicker, it can ensure that the deformation plate is deformed first, and its energy absorption function can be fully exerted.
[0018] Compared with the existing technology, this high energy absorption body A-pillar hot-formed reinforcement has the following advantages:
[0019] 1. Through the deformation plate, support plate, first outward expansion plate, second outward expansion plate, first thin plate and second thin plate, when the A-pillar is impacted, the deformation plate is deformed, and the first thin plate and the second thin plate are torn, thereby cushioning the impact force. Moreover, after the deformation of the deformation plate, it forms a broken line shape, which can further improve the strength of the A-pillar and ensure the safety of the occupants.
[0020] 2. Through the curved reinforcement plate and the inner concave plate, when the A-pillar is impacted, the inner concave plate is pressed against the first and second outer expansion plates respectively, causing the deformation plate to bend. This prevents the middle part of the A-pillar outer plate from being concave and unable to be pressed against the first and second outer expansion plates, resulting in the deformation plate's energy absorption function not being fully utilized.
[0021] 3. Through the corrugated plate, when the outer side of the A-pillar is impacted, the deformation of the corrugated plate will first absorb part of the impact force and provide a certain deformation space. When the A-pillar is slightly colliding, only the corrugated plate and the A-pillar outer plate need to be repaired, reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0023] Figure 2 It is a schematic diagram of the planar structure of the utility model;
[0024] Figure 3 It is a structural schematic diagram of the deformable plate in the utility model.
[0025] In the figure: 1. Mounting plate; 2. Support plate; 3. Deformation plate; 4. First outward expansion plate; 5. First thin plate; 6. Triangular tear; 7. Arc-shaped reinforcement plate; 8. Inward concave plate; 9. Corrugated plate; 10. Second outward expansion plate; 11. Second thin plate; 12. U-shaped reinforcement plate. DETAILED DESCRIPTION
[0026] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0027] 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.
[0028] 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.
[0029] 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.
[0030] See also Figure 1-3 This embodiment provides a high-energy-absorbing thermoformed reinforcement for the A-pillar of a vehicle body, including a mounting plate 1 fixed to the inner side of the A-pillar inner panel, a support plate 2 provided on the mounting plate 1, a deformable plate 3 fixed to the side of the support plate 2 away from the mounting plate 1, two symmetrically distributed first outward expansion plates 4 and second outward expansion plates 10 are integrally formed on both sides of the deformable plate 3, and a plurality of equally spaced first thin plates 5 are provided between the inner side of the first outward expansion plate 4 and the support plate 2, and a plurality of equally spaced second thin plates 11 are provided between the second outward expansion plate 10 and the support plate 2, and the first thin plates 5 and the second thin plates 11 are alternately distributed.
[0031] A triangular tear 6 is provided on the first thin plate 5 and the second thin plate 11, and the triangular tear 6 is aligned with the support plate 2; when the outer side of the A-pillar is impacted, the outer plate of the A-pillar will squeeze the first outer expansion plate 4 and the second outer expansion plate 10 to both sides. At this time, the middle of the deformation plate 3 is supported by the support plate 2, but the supporting force on both sides is insufficient, and the deformation plate 3 will bend backward along the support plate 2, and at this time the first thin plate 5 and the second thin plate 11 will tear along the triangular tear 6 to absorb the impact and provide a buffering effect. Moreover, the bent deformation plate 3 forms a broken line shape with greater strength. The first thin plate 5 and the second thin plate 11 will increase the connection strength between the first outer expansion plate 4, the second outer expansion plate 10 and the deformation plate 3, thereby further increasing the strength of the A-pillar after energy absorption.
[0032] Two symmetrically distributed U-shaped reinforcement plates 12 are provided between the side of the deformation plate 3 close to the A-pillar inner panel and the A-pillar inner panel; the U-shaped reinforcement plates 12 can increase the bending resistance of the deformation plate 3 when the deformation plate 3 is squeezed and bent by the wall hanging, thereby further improving the energy absorption effect of the deformation plate 3.
[0033] An arc-shaped reinforcement plate 7 is provided between the first outward expansion plate 4 and the second outward expansion plate 10, and inner concave plates 8 are provided at both ends of the arc-shaped reinforcement plate 7, and the side of the arc-shaped reinforcement plate 7 away from the deformation plate 3 is connected to the A-pillar outer plate; when the A-pillar is impacted, the arc-shaped reinforcement plate 7 is squeezed inward by the A-pillar outer plate, and the two inner concave plates 8 are squeezed on the first outward expansion plate 4 and the second outward expansion plate 10 respectively, causing the deformation plate 3 to bend, preventing the middle position of the A-pillar outer plate from being concave and unable to squeeze the first outward expansion plate 4 and the second outward expansion plate 10, resulting in the energy absorption function of the deformation plate 3 cannot be fully exerted.
[0034] A corrugated plate 9 is provided between the curved reinforcement plate 7 and the A-pillar outer plate, and the two sides of the corrugated plate 9 are respectively connected to the A-pillar outer plate and the curved reinforcement plate 7 by brazing; when the outer side of the A-pillar is impacted, the deformation of the corrugated plate 9 will first absorb part of the impact force and provide a certain deformation space. When the A-pillar is slightly colliding, only the corrugated plate 9 and the A-pillar outer plate need to be repaired, thereby reducing maintenance costs.
[0035] The thickness of the arc-shaped reinforcing plate 7 is 1.6-2.0 mm, and the thickness of the deformable plate 3 is 1.4-1.6 mm. When a collision occurs, the arc-shaped reinforcing plate 7 will squeeze the deformable plate 3. Since the arc-shaped reinforcing plate 7 is thicker, it can ensure that the deformable plate 3 is deformed first, giving full play to its energy absorption effect.
[0036] In this embodiment, the above-mentioned fixing methods are the most commonly used fixing connection methods in this field, such as welding, bolt connection, etc.; the arc-shaped reinforcement plate 7, the deformation plate 3 and the first outer expansion plate 4, the second outer expansion plate 10 are formed by hot pressing, and the structure is more stable and not easy to deform. In addition, the A-pillar outer plate, the A-pillar inner plate, the mounting plate 1, the arc-shaped reinforcement plate 7 and the corrugated plate 9 are welded as a whole by brazing, which has higher strength.
[0037] The working principle of this utility model:
[0038] When the outer side of the A-pillar is impacted, the deformation of the corrugated plate 9 will first absorb part of the impact force and provide a certain deformation space. If the impact force is large, the arc-shaped reinforcement plate 7 will squeeze the first outward expansion plate 4 and the second outward expansion plate 10 to both sides. At this time, the middle of the deformed plate 3 is supported by the support plate 2, but the supporting force of the U-shaped reinforcement plates 12 on both sides is insufficient. The deformed plate 3 will bend backward along the support plate 2, and at this time the first thin plate 5 and the second thin plate 11 will be torn along the triangular tear 6 to absorb the impact and provide a buffering effect. Moreover, the bent deformed plate 3 forms a broken line shape with greater strength. The first thin plate 5 and the second thin plate 11 will increase the connection strength between the first outward expansion plate 4, the second outward expansion plate 10 and the deformed plate 3, thereby further improving the strength of the A-pillar after energy absorption.
[0039] 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 energy absorption vehicle body A-pillar thermoformed reinforcement, comprising a mounting plate (1) fixed to the inner side of the A-pillar inner panel, characterized in that: A support plate (2) is provided on the mounting plate (1), a deformable plate (3) is fixed on a side of the support plate (2) away from the mounting plate (1), two symmetrically distributed first outward expansion plates (4) and second outward expansion plates (10) are integrally formed on both sides of the deformable plate (3), and a plurality of equally spaced first thin plates (5) are provided between the inner side of the first outward expansion plate (4) and the support plate (2), and a plurality of equally spaced second thin plates (11) are provided between the second outward expansion plate (10) and the support plate (2), and the first thin plates (5) and the second thin plates (11) are alternately distributed.
2. The high energy absorption vehicle body A-pillar thermoformed reinforcement according to claim 1, characterized in that: The first thin plate (5) and the second thin plate (11) are both provided with a triangular tearing opening (6), and the triangular tearing opening (6) is aligned with the support plate (2).
3. A high energy absorption vehicle body A-pillar thermoformed reinforcement according to claim 1 or 2, characterized in that: Two symmetrically distributed U-shaped reinforcement plates (12) are provided between the side of the deformation plate (3) close to the A-pillar inner panel and the A-pillar inner panel.
4. The high energy absorption vehicle body A-pillar thermoformed reinforcement according to claim 1, characterized in that: An arc-shaped reinforcement plate (7) is provided between the first outward expansion plate (4) and the second outward expansion plate (10), inner concave plates (8) are provided at both ends of the arc-shaped reinforcement plate (7), and the side of the arc-shaped reinforcement plate (7) away from the deformation plate (3) is connected to the A-pillar outer plate.
5. The high energy absorption vehicle body A-pillar thermoformed reinforcement according to claim 4, characterized in that: A corrugated plate (9) is provided between the arc-shaped reinforcement plate (7) and the A-pillar peripheral plate, and both sides of the corrugated plate (9) are respectively connected to the A-pillar peripheral plate and the arc-shaped reinforcement plate (7) by brazing.
6. The high energy absorption vehicle body A-pillar thermoformed reinforcement according to claim 4, characterized in that: The thickness of the arc-shaped reinforcing plate (7) is 1.6-2.0 mm, and the thickness of the deformation plate (3) is 1.4-1.6 mm.