Front door inner plate upper reinforcer assembly

By employing wave-shaped reinforcing ribs and an inlaid design in the reinforcement assembly of the front door inner panel, combined with a carbon fiber buffer layer and reinforcement layer, the problem of local stress concentration under multi-angle impact force of straight plate-shaped reinforcing ribs is solved, achieving more efficient energy dispersion and improved overall protection performance.

CN223605451UActive Publication Date: 2025-11-28ZHONGSHIYI CHONGQING MACHINERY IND CO LTD
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Patent Information

Application Number
CN202520227626.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2025-11-28
Estimated Expiration
2035-02-13

AI Technical Summary

Technical Problem

In existing technologies, simple straight-plate reinforcing ribs cannot disperse energy in an all-round and efficient manner when dealing with multi-angle impacts, resulting in local stress concentration and weakening the overall protective performance.

Method used

It adopts a wave-shaped reinforcing rib and inlaid design, combined with a carbon fiber buffer layer and reinforcing layer, and forms a nested structure through the connection of the fixing plate and the reinforcing plate, which enhances the overall strength and energy absorption performance.

Benefits of technology

It significantly improves the overall strength and energy absorption performance of the reinforcement assembly on the front door inner panel, reduces the damage to the door inner panel from impact, and improves the safety and durability of the vehicle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an upper reinforcer assembly of a front door inner plate, which relates to the technical field of automobile manufacturing and comprises an automobile door, a connecting plate used for reinforcing is arranged in the automobile door, a reinforcing rib used for buffering is fixedly connected in the connecting plate, a fixing disc is arranged in the automobile door, and a group of reinforcing plates used for reinforcing and fixing are fixedly connected to the annular side surface of the fixing disc. A reinforcing layer is arranged in the automobile door, a set of reinforcing plates are arranged on the annular side face of the fixing disc and connected with the automobile door, the overall strength can be effectively improved, a set of buffering air cushions are arranged on the rear surfaces of the set of reinforcing plates, when the automobile door is collided, the buffering air cushions can absorb part of energy, and under the condition that the overall weight is not increased too much, the buffering air cushions can absorb part of energy. The structure strength is obviously improved, the damage of impact force to the automobile door inner plate and the reinforcer assembly is reduced, the embedded connecting plate is installed in the automobile door, the embedded design can effectively disperse installation stress, and the connection reliability is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile manufacturing, especially relates to a front door inner plate upper stiffener assembly. BACKGROUND

[0002] The front door of an automobile, as an important part of the vehicle body structure, not only concerns the overall appearance of the vehicle, but also plays a key role in safety, durability, and driving experience. In the field of automobile manufacturing, the front door inner plate upper stiffener assembly is a core component for improving the performance of the front door. In practical applications, it usually involves the following key aspects:

[0003] 1. Vehicle body structure reinforcement: The front door inner plate upper stiffener assembly closely cooperates with the front door inner plate, providing a stable internal support structure for the front door through welding, riveting, and other connection methods, thereby enhancing the overall rigidity of the front door.

[0004] 2. Collision safety assurance: In the event of a collision, especially a side collision, the stiffener assembly plays a crucial role in quickly absorbing and dispersing collision energy, preventing excessive deformation of the front door.

[0005] Currently, to improve the performance of the front door inner plate upper stiffener assembly, various automobile manufacturers and component manufacturers have adopted multiple design and manufacturing solutions. Some manufacturers focus on optimizing material selection, using high-strength alloy steel to enhance the load-bearing capacity of the stiffener assembly. Some manufacturers concentrate on improving manufacturing processes, using advanced stamping and welding techniques to create a more precise and robust stiffener assembly. In addition, some manufacturers have innovatively designed the structure, such as one-piece forming and multi-layer nesting structure, to further optimize the mechanical properties of the stiffener assembly.

[0006] However, the above-mentioned existing technical solutions still have some problems to be solved. In terms of structural design, the strength and energy absorption effect of conventional design are still insufficient when facing complex and variable collision conditions. For example, a simple straight plate-shaped stiffener cannot effectively disperse energy in all directions when dealing with multi-angle impact forces, which may lead to local stress concentration and weaken the overall protection performance. To address these issues, an innovative front door inner plate upper stiffener assembly solution is proposed, which sets up stiffeners and buffer structures, adopts wave-shaped and inlaid design, and improves the performance of the stiffener assembly in all directions, enabling a qualitative leap in strength, energy absorption, and durability, and providing better protection for the front door of the automobile. INNOVATIVE CONTENT

[0007] The front door inner plate upper reinforcing assembly solves the problem that the simple straight plate-shaped reinforcing rib cannot disperse energy in all directions and efficiently, easily causes local stress concentration and weakens overall protection performance when coping with multi-angle impact force.

[0008] To achieve the above object, the utility model discloses the following technical scheme:

[0009] A front door inner plate upper reinforcing assembly, including the car door, the car door is internally provided with the connecting plate for reinforcing, the connecting plate is fixedly connected with the reinforcing rib for buffering in, the car door is internally provided with the fixed disc, the fixed disc annular side is fixedly connected with a group of reinforcing plate for reinforcing fixedly, the car door is provided with the reinforcing layer, the reinforcing layer rear surface is fixedly connected with the buffer layer for reinforcing, the buffer layer is fixedly connected with the car door.

[0010] Preferably, the car door is fixedly connected with the reinforcing frame for improving overall strength, the fixed disc rear surface is fixedly connected with the buffer pad for buffering, the buffer pad is fixedly connected with the car door, and the car door front surface is provided with the clamping groove.

[0011] Preferably, the clamping groove is fixedly connected with the connecting plate, the reinforcing rib is designed in a wave shape, and a group of the reinforcing plate rear surfaces are fixedly connected with a group of buffer air cushions.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. A group of reinforcing plates are arranged on the annular side of the fixed disc, which can effectively improve the overall strength when connected with the car door, a group of buffer air cushions are arranged on the rear surfaces of a group of reinforcing plates, which can absorb part of the energy when the car door is impacted, and the overall structure can significantly improve the strength without increasing excessive weight, thereby reducing the damage of the impact force to the car door inner plate and the reinforcing assembly itself.

[0014] 2. The car door is provided with a nested connecting plate, which can effectively disperse the installation stress and improve the reliability of the connection, the connecting plate is provided with a wave-shaped reinforcing rib, which can improve the overall bending strength and torsional stiffness, the car door inner wall is provided with a buffer layer and a reinforcing layer, both of which are made of carbon fiber material, which has high strength and high modulus, and can improve the overall strength of the reinforcing assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail with reference to the drawings.

[0016] Figure 1 Figure 1 is a whole structure diagram of the utility model;

[0017] Figure 2 Figure 2 is a fixed disc structure diagram of the utility model;

[0018] Figure 3 Figure 3 is a reinforcing rib structure diagram of the utility model;

[0019] Figure 4 Figure 4 is a reinforcing layer structure diagram of the utility model.

[0020] Legend: 1, door; 2, connecting plate; 3, reinforcing plate; 4, reinforcing layer; 5, fixed disc; 6, clamping groove; 7, reinforcing rib; 8, buffer pad; 9, buffer air cushion; 10, reinforcing frame; 11, buffer layer. DETAILED DESCRIPTION

[0021] The embodiment of the application provides a front door inner plate upper reinforcing assembly, effectively solves the problem that a simple straight plate-shaped reinforcing rib cannot disperse energy in all directions and efficiently when responding to multi-angle impact force, easily leads to local stress concentration and weakens overall protection performance, the reinforcing rib and the buffer structure are arranged, the wave type and inlaid type design are adopted, the performance of the reinforcing assembly is improved in all directions, the reinforcing assembly realizes qualitative leap in strength, energy absorption, durability and other aspects, and provides more excellent protection for the front door of the automobile.

[0022] EMBODIMENT

[0023] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the technical scheme in the embodiment of the application effectively solves the problem that a simple straight plate-shaped reinforcing rib cannot disperse energy in all directions and efficiently when responding to multi-angle impact force, easily leads to local stress concentration and weakens overall protection performance, and the overall idea is as follows:

[0024] In view of the problems in the prior art, the utility model provides a front door inner plate upper reinforcement assembly, including door 1, the door 1 is provided with the connecting plate 2 for reinforcing in, the connecting plate 2 is fixedly connected with the reinforcing rib 7 for buffering in, the door 1 is provided with the fixed disc 5, the fixed disc 5 annular side surface is fixedly connected with a group of reinforcing plate 3 for reinforcing and fixing, the door 1 is provided with the reinforcing layer 4, the reinforcing layer 4 rear surface is fixedly connected with the buffer layer 11 for reinforcing, the buffer layer 11 is fixedly connected with the door 1, the fixed disc 5 annular side surface is provided with a group of reinforcing plate 3, these reinforcing plate 3 and the door 1 are connected and can effectively improve the strength of whole, a group of reinforcing plate 3 rear surface is provided with a group of buffer air cushion 9, when the door 1 is impacted, these buffer air cushion 9 can absorb part energy, the whole significantly improves the strength of structure under the condition of not increasing too much weight, reduces the damage of impact force to the door 1 inner plate and reinforcement total cost itself.

[0025] The door 1 is fixedly connected with the reinforcing frame 10 for improving the overall strength, the rear surface of the fixed disc 5 is fixedly connected with the buffer pad 8 for buffering, the buffer pad 8 is fixedly connected with the door 1, the front surface of the door 1 is provided with the clamping groove 6, the clamping groove 6 is fixedly connected with the connecting plate 2, the reinforcing rib 7 is designed in a wave shape, the rear surface of a group of reinforcing plate 3 is fixedly connected with a group of buffer air cushion 9, the door 1 is provided with the nested connecting plate 2, the nested design can effectively disperse installation stress, improve the reliability of connection, the connecting plate 2 is provided with the reinforcing rib 7 in a wave shape, the wave shape design can improve the overall bending strength and torsional stiffness, the inner wall of the door 1 is paved with the buffer layer 11 and the reinforcing layer 4, the buffer layer 11 and the reinforcing layer 4 are both made of carbon fiber material, the carbon fiber has the characteristics of high strength and high modulus, and can improve the overall strength of the reinforcement assembly.

[0026] The door 1 is a basic bearing component of the front door inner plate upper reinforcement assembly, provides an installation frame for the entire reinforcement system, and directly affects the performance and safety of the front door of the vehicle. The structural integrity of the door 1 is the basis for the cooperative work of the components of the reinforcement assembly.

[0027] The connecting plate 2 is installed in the door 1 and plays an important role in reinforcing the door 1. The nested design of the connecting plate 2 uniformly disperses the stress generated during installation, greatly improving the reliability of the connection with the door 1 and ensuring stable connection under various working conditions such as vehicle driving and collision.

[0028] The reinforcing plate 3 is fixed to the annular side surface of the fixed disc 5 and connected with the door 1, significantly enhancing the structural strength of the entire reinforcement assembly. Meanwhile, the buffer air cushion 9 arranged on the back of the reinforcing plate 3 can quickly absorb part of the collision energy when the door 1 is impacted, effectively reducing the impact force on the door 1 inner plate and the reinforcement itself.

[0029] Strengthening layer 4: Strengthening layer 4 is laid inside the door 1, and the direct effect is to improve the overall strength of the reinforcing assembly, enhance the ability of the door 1 to resist deformation, and ensure structural stability under various working conditions, providing a solid guarantee for the safety performance of the vehicle;

[0030] Fixed disc 5: Fixed disc 5 is located inside the door 1, and its annular side is connected to a set of reinforcing plates 3, which not only provides a reliable mounting position for the reinforcing plates 3, but also further strengthens the stability and strength of the overall structure through the connection between the reinforcing plates 3 and the door 1;

[0031] Clamping groove 6: Clamping groove 6 is opened on the front surface of the door 1 and is fixedly connected with the connecting plate 2, which plays a role in precise positioning and auxiliary fixation of the connecting plate 2, ensuring the accuracy of the mounting position of the connecting plate 2 inside the door 1, and thus improving the installation precision and reliability of the entire reinforcing assembly;

[0032] Stiffener 7: Stiffener 7 is designed in a wavy shape and is firmly fixed in the connecting plate 2; the unique wavy shape gives it excellent cushioning performance, while significantly improving the bending strength and torsional stiffness of the overall structure, enabling the reinforcing assembly to maintain good mechanical properties under complex stress conditions;

[0033] Cushion 8: Cushion 8 is fixed to the rear surface of the fixed disc 5 and is connected with the door 1; during vehicle driving, when the door 1 is subjected to vibration or external slight impact, the cushion 8 can effectively cushion the impact force and reduce the wear between components, protecting the door 1 and related components;

[0034] Cushion air cushion 9: Cushion air cushion 9 is installed on the rear surface of the reinforcing plate 3, which can quickly deform and absorb a large amount of collision energy when the door 1 is subjected to impact, relieving the impact force on the inner panel of the door 1 and the reinforcing assembly, providing more reliable safety protection for the occupants;

[0035] Stiffener 10: Stiffener 10 is fixed inside the door 1 and serves as an additional reinforcing structure, further improving the overall strength of the door 1 and enhancing its anti-deformation ability when dealing with extreme conditions such as collision, thereby improving the passive safety performance of the vehicle;

[0036] Cushion layer 11: Cushion layer 11 is fixed to the rear surface of the reinforcing layer 4 and is connected with the door 1, made of carbon fiber material, which not only has high strength and high modulus characteristics to effectively reinforce the structure, but also can absorb part of the energy during collision, improving the overall strength and cushioning performance of the reinforcing assembly.

[0037] Working principle:

[0038] The annular side of the fixed disc 5 is provided with a set of reinforcing plates 3, which can effectively improve the overall strength when connected with the door 1, the rear surface of the set of reinforcing plates 3 is provided with a set of buffer air cushions 9, which can absorb part of the energy when the door 1 is collided, the overall structure can significantly improve the strength without increasing too much weight, reduce the damage of the impact force to the inner plate and the reinforcing assembly of the door 1, the nested connecting plate 2 is installed in the door 1, the nested design can effectively disperse the installation stress and improve the reliability of the connection, the wave-shaped reinforcing ribs 7 are arranged in the connecting plate 2, the wave-shaped design can improve the overall bending strength and torsional stiffness, the inner wall of the door 1 is paved with a buffer layer 11 and a reinforcing layer 4, the buffer layer 11 and the reinforcing layer 4 are both made of carbon fiber material, the carbon fiber has the characteristics of high strength and high modulus, which can improve the overall strength of the reinforcing assembly.

[0039] Finally, it should be noted that: obviously, the above examples are only examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and impossible to enumerate all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A front door inner panel reinforcement assembly comprising a vehicle door (1), characterized in that, The car door (1) is provided with a connecting plate (2) for reinforcement, the connecting plate (2) is fixedly connected with a reinforcing rib (7) for buffering, and the car door (1) is provided with a fixed disc (5). Wherein, the fixed disc (5) is fixedly connected with a group of reinforcing plates (3) for reinforcement on the annular side surface, and the car door (1) is provided with a reinforcing layer (4).

2. A front door inner panel reinforcement assembly as in claim 1, wherein: The reinforcing layer (4) is fixedly connected with a buffering layer (11) for reinforcement on the rear surface; Wherein, the buffering layer (11) is fixedly connected with the car door (1).

3. A front door inner panel reinforcement assembly as in claim 1, wherein: The car door (1) is fixedly connected with a reinforcing frame (10) for improving the overall strength.

4. A front door inner panel reinforcement assembly as in claim 1, wherein: The fixed disc (5) is fixedly connected with a buffer pad (8) for buffering on the rear surface; Wherein, the buffer pad (8) is fixedly connected with the car door (1).

5. A front door inner panel reinforcement assembly as in claim 1, wherein: The car door (1) is provided with a clamping groove (6) on the front surface.

6. A front door inner panel reinforcement assembly as in claim 5, wherein: The clamping groove (6) is fixedly connected with the connecting plate (2).

7. A front door inner panel reinforcement assembly as in claim 1, wherein: The reinforcing rib (7) is designed in a wave shape.

8. A front door inner panel reinforcement assembly as in claim 1, wherein: A group of the reinforcing plates (3) are fixedly connected with a group of buffer air cushions (9) on the rear surface.