A structure for improving the rigidity of a door outer panel ridge

Abstract

The utility model discloses a kind of stiffness promotion structures of vehicle door outer plate edge line, it is related to the field of automobile door design and manufacture.The stiffness promotion structure of the vehicle door outer plate edge line includes reinforcing pad, reinforcing pad is set in vehicle rear door assembly structure.The stiffness promotion structure of the vehicle door outer plate edge line, it is set by reinforcing pad corresponding edge line, it gives consideration to lightweight and cost control, reinforcing pad adopts lightweight material, it effectively achieves the effect of lightweight, reinforcing pad is set corresponding vehicle door structure outer plate edge line, it can be set relative to different vehicle door structure outer plate upper edge line, improve its versatility, in subsequent vehicle door structure outer plate stiffness promotion optimization, greatly shorten the structure design optimization cycle, corresponding setting sheet metal edge line and reinforcing pad, form outer plate edge line reinforcing structure under the cooperation of sheet metal edge line and reinforcing pad, effectively improve the vehicle door structure outer plate upper edge line stiffness and vehicle door structure outer plate dent resistance.

Description

Technical Field

[0001] This utility model relates to the field of automotive door design and manufacturing technology, specifically a structure for improving the stiffness of the outer edge of a door panel. Background Technology

[0002] In the existing field of car door design and manufacturing, there are various structural forms of car doors, taking into account factors such as cost, structural rigidity and strength, and lightweighting.

[0003] The outer and inner panels of the car door form a cavity structure. Due to limitations such as styling and the arrangement of door accessories, there are unsupported outer panels in some parts of the cavity. The thickness of the outer panel is further reduced, resulting in insufficient rigidity in some parts of the outer panel. This causes problems such as substandard door rigidity, dents, and rebound noises when pressing the outer panel, affecting door performance and user experience.

[0004] Common design solutions include adding a connector at this point, increasing the thickness of the outer door panel, or using higher-strength materials. A key challenge in door structure design is how to improve the dent resistance and door edge rigidity of the outer panel while maintaining a lightweight design, without altering the shape or increasing the number of parts.

[0005] According to a search on the China Patent Network, a car door outer panel reinforcement structure with publication number CN215041995U is disclosed. It adopts a relatively simple door outer panel reinforcement structure, adds a sheet metal support structure for the bracket, and applies expanding adhesive to the bracket and the outer panel, which effectively improves the dent resistance of the car door outer panel.

[0006] However, the lack of supporting structure for the internal ridges of this type of automotive door outer panel reinforcement structure leads to the following problems:

[0007] 1. Insufficient rigidity in some areas of the door frame;

[0008] 2. The rigidity of the outer plate edge features is not good, the simulation resistance to dent is not good, and there is a risk of local instability in the edge features.

[0009] This application proposes a stiffness enhancement structure for the outer edge of a car door panel to solve the above-mentioned problems. Utility Model Content

[0010] To address the shortcomings of existing technologies, this utility model provides a stiffness enhancement structure for the outer edge of a car door, which solves the problems of insufficient local stiffness of the door edge features caused by the lack of a support structure inside the door cavity, poor stiffness of the outer edge features, poor simulation resistance to concavity, and the risk of local instability of the edge features.

[0011] To achieve the above objectives, this utility model is implemented through the following technical solution: a stiffness enhancement structure for the outer edge of a car door panel, including a reinforcing pad, wherein the reinforcing pad is disposed in the rear door assembly structure;

[0012] The rear door assembly structure includes:

[0013] The outer panel of the door structure has ridges, and the reinforcing pad is set corresponding to the ridges;

[0014] The inner panel of the door structure forms a cavity with the outer panel of the door structure. Where the cross-sectional dimensions of the cavity are insufficient, sheet metal ridges and reinforcing pads are provided accordingly.

[0015] Preferably, a frame is fixedly connected to the inner panel of the door structure, and the frame and the inner panel of the door structure form an integral load-bearing frame.

[0016] Preferably, the outer panel of the door structure covers the outermost part of the overall load-bearing frame.

[0017] Preferably, anti-collision beams are installed in the cavities of the outer panel and inner panel of the door structure.

[0018] Preferably, the reinforcing pad is arranged along the edge of the outer plate, and the reinforcing pad covers the entire length of the edge.

[0019] Preferably, the reinforcing pad is configured as a double-layer structure to form a double-layer reinforced structure.

[0020] Preferably, the reinforcing pad is bonded to the edge of the outer panel of the door structure.

[0021] Its beneficial effects are as follows:

[0022] 1. The stiffness enhancement structure of the outer edge of the car door panel, through the setting of the reinforcing pads corresponding to the edge, takes into account both lightweighting and cost control. The reinforcing pads are made of lightweight materials, which effectively achieves the purpose of lightweighting. The reinforcing pads are set to correspond to the edge of the outer edge of the car door structure, which can be set for different outer edge of the car door structure, improving its versatility. In subsequent optimization of the stiffness enhancement of the outer edge of the car door structure, the structural design optimization cycle is greatly shortened.

[0023] 2. The rigidity enhancement structure of the outer edge of the door panel: When the cavity cross-sectional size between the outer panel and the inner panel of the door structure is insufficient, a sheet metal edge and a reinforcing pad are set accordingly. With the cooperation of the sheet metal edge and the reinforcing pad, a reinforced structure for the outer edge of the door panel is formed, which effectively improves the rigidity of the outer edge of the door structure and the anti-dent performance of the outer panel of the door structure. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the rear door assembly structure of the present invention, showing the door structure with the middle section cut off.

[0027] Figure 3 This is a schematic diagram of the internal structure of the rear door assembly structure of the vehicle with the door cut off in the middle.

[0028] Figure 4 This is a structural view of the reinforced cross-section of the outer panel edge of the door structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure reinforcement of the outer panel edge structure of the door structure of this utility model.

[0030] In the diagram: 1. Rear door assembly structure; 11. Outer door structure panel; 12. Inner door structure panel; 13. Frame; 2. Ridge line; 3. Reinforcing pad; 4. Anti-collision beam. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0033] This utility model discloses a structure for improving the stiffness of the outer edge of a car door panel, according to the attached... Figure 1-3 As shown, it includes a reinforcing pad 3, which is installed in the rear door assembly structure 1.

[0034] The rear door assembly structure 1 includes:

[0035] The outer panel 11 of the door structure is provided with a ridge line 2, and the reinforcing pad 3 is provided corresponding to the ridge line 2;

[0036] The inner panel 12 of the door structure forms a cavity with the outer panel 11 of the door structure. Where the cross-sectional dimensions of the cavity are insufficient, sheet metal ridges 2 and reinforcing pads 3 are provided accordingly.

[0037] The outer panel edge reinforcement structure is formed by the cooperation of sheet metal edge 2 and reinforcing pad 3, which effectively improves the rigidity of the upper edge 2 of the outer panel 11 of the door structure and the anti-dent performance of the outer panel 11 of the door structure.

[0038] The reinforcing pad 3 is set according to the edge line 2 of the outer panel 11 of the door structure. It can be set relative to the edge line 2 of different outer panels 11 of the door structure, which improves its versatility and greatly shortens the structural design optimization cycle when the rigidity of the outer panel 11 of the door structure is improved and optimized in the future.

[0039] A frame 13 is fixedly connected to the inner panel 12 of the door structure, and the frame 13 and the inner panel 12 of the door structure form an integral load-bearing frame.

[0040] The inner panel 12 of the door structure is fixed to the frame 13 by welding or bolts.

[0041] The outer panel 11 of the door structure covers the outermost part of the overall load-bearing frame.

[0042] The welding points between the inner door panel 12 and the frame 13 bear shear force, while the outer door panel 11 absorbs energy through a rolled edge structure, deforming together with the inner door panel 12.

[0043] Anti-collision beams 4 are installed in the cavities of the outer panel 11 and the inner panel 12 of the door structure.

[0044] Furthermore, by setting the anti-collision beam 4 laterally, the anti-collision beam 4, together with the frame 13, prevents the impact force from being directly transmitted to the longitudinal beam of the vehicle body, avoids deformation of the main structure, and reduces maintenance complexity.

[0045] In the event of a high-speed collision, the impact force is transmitted to the longitudinal beams and the main structure of the passenger compartment, achieving layered energy absorption.

[0046] Offset collision response: In partially overlapping collisions, the impact force on one side is dispersed to the non-impact side longitudinal beam, expanding the energy absorption path.

[0047] According to the appendix Figure 3-5 As shown, the reinforcing pad 3 is arranged along the outer plate edge 2, and the reinforcing pad 3 covers the entire length of the edge 2.

[0048] It is particularly emphasized that the structural rigidity and dent resistance at the edge line 2 of the outer panel 11 of the door structure are improved by reinforcing pad 3;

[0049] Furthermore, by setting the reinforcing pad 3 corresponding to the ridge line 2, both lightweighting and cost control are achieved.

[0050] Furthermore, the reinforcing pad 3 is made of lightweight material, which effectively achieves the effect of weight reduction;

[0051] Furthermore, the reinforcing pad 3 is set corresponding to the edge line 2 of the outer panel 11 of the door structure. It can be set relative to the edge line 2 of different outer panels 11 of the door structure to improve its versatility. In subsequent optimization of the stiffness of the outer panel 11 of the door structure, the structural design optimization cycle is greatly shortened.

[0052] The reinforcing pad 3 is designed with a double-layer structure to form a double-layer reinforced structure.

[0053] Furthermore, the double-layer reinforcing pad 3 can be configured as gray Polymer 2.0mm + black GF 0.2mm.

[0054] The reinforcing pad 3 is bonded to the edge line 2 of the outer panel 11 of the door structure.

[0055] The reinforcing pad 3 can be bonded in various ways. The following methods are listed in this embodiment:

[0056] Option 1: Achieve seamless bonding with the outer panel 11 of the door structure using hot melt adhesive bonding technology;

[0057] Option 2: The reinforcing pad 3 and the outer panel 11 of the door structure are bonded together using a thermostatic press.

[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A structure for enhancing the stiffness of the outer edge of a car door panel, characterized in that, Includes a reinforcing pad (3), which is disposed in the rear door assembly structure (1); The rear door assembly structure (1) includes: The outer panel (11) of the door structure is provided with a ridge line (2), and the reinforcing pad (3) is provided corresponding to the ridge line (2); The inner panel (12) of the door structure forms a cavity with the outer panel (11) of the door structure. Where the cross-sectional dimensions of the cavity are insufficient, sheet metal ridges (2) and reinforcing pads (3) are provided accordingly.

2. The stiffness enhancement structure for the outer edge of a car door panel according to claim 1, characterized in that, A frame (13) is fixedly connected to the inner panel (12) of the door structure, and the frame (13) and the inner panel (12) of the door structure form an integral load-bearing frame.

3. The stiffness enhancement structure for the outer edge of a car door panel according to claim 1, characterized in that, The outer panel (11) of the door structure covers the outermost part of the overall load-bearing frame.

4. The stiffness enhancement structure for the outer edge of a car door panel according to claim 1, characterized in that, Anti-collision beams (4) are installed in the cavities of the outer panel (11) and inner panel (12) of the door structure.

5. The stiffness enhancement structure for the outer edge of a car door panel according to claim 1, characterized in that, The reinforcing pad (3) is arranged along the outer plate edge line (2) and covers the entire length of the edge line (2).

6. The stiffness enhancement structure for the outer edge of a car door panel according to claim 1, characterized in that, The reinforcing pad (3) is configured as a double-layer structure to form a double-layer reinforced structure.

7. The stiffness enhancement structure for the outer edge of a car door panel according to claim 1, characterized in that, The reinforcing pad (3) is bonded to the edge (2) of the outer panel (11) of the door structure.

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