Automobile A-pillar inner panel

By designing frame structure and sound absorption and noise reduction measures in the inner plate of the A-pillar A-pillar, the weight increase and noise reduction problems in the A-pillar inner plate in the prior art are solved, the balance between strength and lightweight is achieved, and the sound absorption and noise reduction performance is significantly improved.

CN222728086UActive Publication Date: 2025-04-08NINGBO ZHIXIN AUTO PARTS MFG CO LTD
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Patent Information

Application Number
CN202421626783.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-10
Publication Date
2025-04-08
Estimated Expiration
2034-07-10

AI Technical Summary

Technical Problem

The existing A-pillar inner plate of the existing automobiles increases the body weight while improving safety performance, and cannot effectively reduce wind noise and other abnormal noises.

Method used

A frame-shaped structure of the inner plate of the automobile A column is designed, which adopts an inner plate support plate, reinforcement ribs, side connecting plates, central connecting plates, side shock-absorbing cotton, central shock-absorbing cotton and central sound-absorbing cotton. The support strength is enhanced through the coordination between the reinforcement ribs and the connecting plate, and vibration is absorbed through the sound-absorbing cotton and shock-absorbing plates to reduce noise.

Benefits of technology

It realizes that while ensuring the strength of the inner plate of the A column, the vehicle weight is reduced, and the lightweight design needs are met. The sound absorption and noise reduction performance of the inner plate of the A column is significantly improved through sound absorption and noise reduction measures.

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Abstract

The utility model relates to the technical field of automobile accessories, and discloses an inner panel of an automobile A-pillar, comprising: an inner panel support plate and reinforcing ribs, wherein one side of the inner panel support plate is provided with reinforcing ribs, and there are a plurality of the reinforcing ribs, and the plurality of the reinforcing ribs are equidistantly arranged on one side of the inner panel support plate, a central connecting plate is provided on one side of the inner panel support plate between the reinforcing ribs, and side connecting plates are provided on both sides of the inner panel support plate, and the central connecting plate is equidistantly arranged in layers on one side of the inner panel support plate, and side sound-absorbing cotton is provided between the upper and lower side connecting plates. The frame-type structure of the utility model can reduce the weight of the inner panel of the automobile A-pillar, ensure the strength of the inner panel of the automobile A-pillar, and meet the lightweight design requirements of the automobile A-pillar; while supporting the hollow reinforcing ribs through PVC fillers, the multi-layered PVC fillers can also play a role in noise reduction, thereby improving the sound absorption and noise reduction performance of the inner panel of the automobile A-pillar.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an automobile A-pillar inner plate. Background Art

[0002] The A-pillar of a car is a connecting column between the roof and the front cabin on the left and right front sides, located between the front windshield and the left and right front doors. The A-pillar of a car is usually made of steel or aluminum alloy, which has high strength and good impact resistance, and can ensure the stability and safety of the body structure. The A-pillar inner plate is a component of the A-pillar assembly, usually located inside the A-pillar, and together with the A-pillar outer plate and reinforcement plate, it constitutes the overall structure of the A-pillar.

[0003] For example, the existing Chinese patent (CN106114636A) discloses an automobile A-pillar inner panel assembly, including a main body and a hard support rod built into the main body, which can greatly improve the support strength of the A-pillar inner panel. The main body of the present invention has a built-in hard support rod, and mounting grooves for installing movable glass windows are provided on both side surfaces of the main body, and step grooves for installing sealing gaskets are provided on the mounting grooves. The A-pillar inner panel assembly is installed between the windshield and the movable glass window on the front side of the vehicle. The A-pillar inner panel includes a hard support rod, and the support strength is relatively large. In the event of an accident, the A-pillar inner panel can well protect the personnel in the cockpit. The arc-shaped curved main body structure of the present invention is relatively stable and has good resistance to hard impact.

[0004] In the above technical solution, although the use of the hard support rod of the A-pillar inner panel improves the safety performance of the A-pillar, it also increases the weight of the vehicle body. In addition, in the prior art, when the vehicle is driving, the A-pillar is affected by wind force, and the connecting parts near it will vibrate, causing wind noise or other abnormal noises near the A-pillar. The existing A-pillar inner panel has no significant effect on the noise reduction of the A-pillar. Utility Model Content

[0005] The utility model aims to provide an A-pillar inner plate for an automobile to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inner panel of an automobile A-pillar, comprising: an inner panel support plate and reinforcing ribs, a reinforcing rib is provided on one side of the inner panel support plate, there are a plurality of the reinforcing ribs, and the plurality of the reinforcing ribs are equidistantly arranged on one side of the inner panel support plate, a central connecting plate is provided between the reinforcing ribs on one side of the inner panel support plate, side connecting plates are provided on both sides of the inner panel support plate, the central connecting plates are equidistantly arranged in layers on one side of the inner panel support plate, a central sound-absorbing cotton is provided between the upper and lower central connecting plates, and side sound-absorbing cotton is provided between the upper and lower side connecting plates.

[0007] Furthermore, a central vibration-damping plate is provided on one side of the inner plate support plate located on the inner side of the central sound-absorbing cotton, and a side vibration-damping plate is provided on one side of the inner plate support plate located on the side of the side sound-absorbing cotton.

[0008] Furthermore, a cavity is provided inside the reinforcing rib, and a PVC filler is provided inside the cavity.

[0009] Furthermore, the cross-section of the reinforcing rib is triangular, one side of the reinforcing rib is fixedly connected to the inner plate support plate, and the other side of the reinforcing rib is provided with an opening.

[0010] Furthermore, the PVC filler is in a multi-layer folded plate structure, and two sides of the PVC filler are fixedly connected to the inner wall of the reinforcing rib.

[0011] Furthermore, the outer contour of the inner plate support plate matches the inner contour of the A-pillar of the automobile, and the inner plate support plate is fixedly arranged on the inner side of the A-pillar of the automobile.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model realizes that when the inner panel of the A-pillar of the automobile is used, the inner panel support plate, the reinforcing ribs, the side connecting plates and the central connecting plate together form an inner frame structure of the inner panel, and the strength of the inner panel support plate is enhanced by the cooperation of the reinforcing ribs, the side connecting plates and the central connecting plate. At the same time, the frame-type structure can reduce the weight of the inner panel of the A-pillar of the automobile, thereby ensuring the strength of the inner panel of the A-pillar of the automobile and meeting the lightweight design requirements of the A-pillar of the automobile;

[0014] In addition, in the frame-type structure of the inner panel of the A-pillar of the car, by adding side vibration-absorbing plates, side sound-absorbing cotton, central vibration-absorbing plates and central suction cotton, the vibration transmitted to the inner panel of the A-pillar can be absorbed and the noise can be reduced. While the hollow reinforcement ribs are supported by PVC fillers, the multi-layer structure of PVC fillers can also play a role in noise reduction, thereby improving the sound absorption and noise reduction performance of the inner panel of the A-pillar of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of an A-pillar inner panel of an automobile according to the utility model;

[0016] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 This is a front view of an A-pillar inner panel of an automobile according to the utility model;

[0018] Figure 4 The utility model is a top sectional view of an inner plate of an A-pillar of an automobile.

[0019] In the figure: 1. Inner plate support plate; 2. Side anti-vibration plate; 3. Side sound-absorbing cotton; 4. Reinforcement ribs; 5. Cavity; 6. Side connecting plate; 7. Central connecting plate; 8. PVC filler; 9. Central sound-absorbing cotton; 10. Central anti-vibration plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: an A-pillar inner panel of an automobile, comprising: an inner panel support plate 1 and a reinforcing rib 4, a reinforcing rib 4 is provided on one side of the inner panel support plate 1, and the inner panel support plate 1 serves as the basic supporting structure of the entire inner panel and bears the main mechanical load.

[0022] There are several reinforcing ribs 4, which are arranged equidistantly on one side of the inner plate support plate 1. The equidistantly arranged reinforcing ribs 4 not only enhance the local strength of the inner plate support plate, but also effectively disperse the force and improve the stability of the overall structure. This design reduces the risk of deformation or damage caused by excessive force on a single point.

[0023] A central connecting plate 7 is provided between the reinforcing ribs 4 on one side of the inner plate support plate 1, and side connecting plates 6 are provided on both sides of the inner plate support plate 1. The central connecting plates 7 are arranged in layers and equidistantly on one side of the inner plate support plate 1. A central sound-absorbing cotton 9 is provided between the upper and lower central connecting plates 7, and a side sound-absorbing cotton 3 is provided between the upper and lower side connecting plates 6. When the inner plate of the A-pillar of the automobile is used, the inner plate support plate 1, the reinforcing ribs 4, the side connecting plates 6 and the central connecting plate 7 together form the inner frame structure of the inner plate. While the strength of the inner plate support plate 1 is enhanced by the cooperation of the reinforcing ribs 4 with the side connecting plates 6 and the central connecting plate 7, the frame-type structure can reduce the weight of the inner plate of the A-pillar of the automobile, thereby ensuring the strength of the inner plate of the A-pillar of the automobile and meeting the lightweight design requirements of the A-pillar of the automobile;

[0024] One side of the inner plate support plate 1 is located inside the central sound-absorbing cotton 9 and is provided with a central vibration-proof plate 10. One side of the inner plate support plate 1 is located on the side of the side sound-absorbing cotton 3 and is provided with a side vibration-proof plate 2. A cavity 5 is provided inside the reinforcing rib 4, and a PVC filler 8 is provided inside the cavity 5. The cross section of the reinforcing rib 4 is triangular, and one side of the reinforcing rib 4 is fixedly connected to the inner plate support plate 1, and the other side of the reinforcing rib 4 is provided with an opening. The PVC filler 8 is a multi-layer folded plate structure, and both sides of the PVC filler 8 are fixedly connected to the inner wall of the reinforcing rib 4. In the frame structure of the inner plate of the A-pillar of the automobile, by adding the side vibration-proof plate 2, the side sound-absorbing cotton 3, the central vibration-proof plate 10 and the central suction cotton 9, the vibration transmitted to the inner plate of the A-pillar can be absorbed to reduce noise. While the hollow reinforcing rib 4 is supported by the PVC filler 8, the multi-layer structure of the PVC filler can also play a role in noise reduction, thereby improving the sound absorption and noise reduction performance of the inner plate of the A-pillar of the automobile.

[0025] The outer contour of the inner panel support plate 1 matches the inner contour of the A-pillar of the automobile, and the inner panel support plate 1 is fixedly arranged on the inner side of the A-pillar of the automobile. The precise matching of the outer contour of the inner panel support plate 1 and the inner contour of the A-pillar ensures that the inner panel can fit tightly on the inner side of the A-pillar, reducing noise, air leakage and other problems caused by excessive gaps. The inner panel support plate 1 is fixedly arranged on the inner side of the A-pillar, and the stability of the inner panel during the driving of the vehicle is ensured by welding, bolting or other reliable fixing methods, preventing loosening or falling off due to vibration or impact.

[0026] When the inner panel of the automobile A-pillar is used, the inner panel support plate 1, the reinforcing ribs 4, the side connecting plates 6 and the central connecting plate 7 together form the inner frame structure of the inner panel. The strength of the inner panel support plate 1 is enhanced by the cooperation of the reinforcing ribs 4, the side connecting plates 6 and the central connecting plate 7. At the same time, the frame structure can reduce the weight of the inner panel of the automobile A-pillar, thereby ensuring the strength of the inner panel of the automobile A-pillar and meeting the lightweight design requirements of the automobile A-pillar.

[0027] In addition, in the frame structure of the inner panel of the A-pillar of the automobile, by adding side vibration-absorbing plates 2, side sound-absorbing cotton 3, central vibration-absorbing plates 10 and central suction cotton 9, the vibration transmitted to the inner panel of the A-pillar can be absorbed and the noise can be reduced. While the hollow reinforcement ribs 4 are supported by the PVC filler 8, the multi-layer structure of the PVC filler can also play a role in noise reduction, thereby improving the sound absorption and noise reduction performance of the inner panel of the A-pillar of the automobile.

[0028] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. An A-pillar inner panel for an automobile, comprising: An inner plate support plate (1) and a reinforcing rib (4), characterized in that: a reinforcing rib (4) is provided on one side of the inner plate support plate (1), there are a plurality of the reinforcing ribs (4), and the plurality of the reinforcing ribs (4) are arranged equidistantly on one side of the inner plate support plate (1); a central connecting plate (7) is provided on one side of the inner plate support plate (1) between the reinforcing ribs (4); side connecting plates (6) are provided on both sides of the inner plate support plate (1); the central connecting plates (7) are arranged equidistantly in layers on one side of the inner plate support plate (1); a central sound-absorbing cotton (9) is provided between the upper and lower central connecting plates (7); and a side sound-absorbing cotton (3) is provided between the upper and lower side connecting plates (6).

2. The automobile A-pillar inner panel according to claim 1, characterized in that: One side of the inner plate support plate (1) is located on the inner side of the central sound-absorbing cotton (9) and is provided with a central vibration-damping plate (10); one side of the inner plate support plate (1) is located on the side of the side sound-absorbing cotton (3) and is provided with a side vibration-damping plate (2).

3. The automobile A-pillar inner panel according to claim 1, characterized in that: A cavity (5) is provided inside the reinforcing rib (4), and a PVC filler (8) is provided inside the cavity (5).

4. The automobile A-pillar inner panel according to claim 3, characterized in that: The reinforcing rib (4) has a triangular cross-section, one side of the reinforcing rib (4) is fixedly connected to the inner plate support plate (1), and the other side of the reinforcing rib (4) is provided with an opening.

5. The automobile A-pillar inner panel according to claim 4, characterized in that: The PVC filler (8) is in the form of a multi-layer folded plate structure, and both sides of the PVC filler (8) are fixedly connected to the inner wall of the reinforcing rib (4).

6. The automobile A-pillar inner panel according to claim 1, characterized in that: The outer contour of the inner plate support plate (1) matches the inner contour of the A-pillar of the automobile, and the inner plate support plate (1) is fixedly arranged on the inner side of the A-pillar of the automobile.

Citation Information

Patent Citations

  • Car A pillar inner plate assembly

    CN106114636A