Fender structure with hidden notch

By setting hidden notches and rounding the corners of the fender edges, combined with the covering design of the headlights and front bumper, the appearance defects in the area where the fenders meet the headlights and front bumper are solved, improving the quality of the car's appearance and production efficiency.

CN224241111UActive Publication Date: 2026-05-15CHONGQING CHANGAN KUAYUE AUTOMOBILE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING CHANGAN KUAYUE AUTOMOBILE
Filing Date
2025-05-28
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The overlapping area between the car fender and the headlights and front bumper has exposed process gaps caused by defects in the flange structure forming, affecting the overall appearance and refinement of the vehicle.

Method used

A fender structure with a concealed notch is designed by creating a notch on the fender edge and rounding the corners at the notch. Combined with the cover design of the headlights and front bumper, the notch is hidden to improve the appearance quality.

Benefits of technology

It effectively avoids molding defects, improves product yield and fatigue strength, enhances the overall appearance quality of the vehicle, reduces wind resistance, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fender forming, and discloses a fender structure with a hidden notch, a fender turnup comprises a first portion abutting against a headlamp, a second portion abutting against a front bumper and a bending portion connecting the first portion and the second portion, the first portion, the second portion and the bending portion are jointly provided with the notch, and the first portion and the second portion are provided with the hidden notch. The headlamp can cover the notch located in the first part, and the front bumper can cover the notch located in the second part. By arranging the notches, stress of materials in the bending process can be effectively released, the forming defects of wrinkling, material stacking and the like caused by stress concentration are avoided, the machining precision and the surface quality of the flanging portion of the fender are ensured, the product yield is improved, the headlamp can cover the notch located in the first portion, and the product quality is improved. The front bumper can cover the notch located in the second part, the notch cannot be seen from the appearance of the vehicle, the problem that the notch in the traditional technology affects the attractiveness of the whole vehicle is effectively solved, and the appearance quality and the delicate sense of the vehicle are improved.
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Description

Technical Field

[0001] This utility model relates to the field of fender molding technology, specifically to a fender structure with a hidden notch. Background Technology

[0002] As an important exterior body panel, the fender's assembly precision with the headlights and front bumper directly affects the overall vehicle's styling integrity. Due to the complex structure of the fender, especially in the overlapping area with the headlights and front bumper, a flanging structure is required for precise alignment. However, due to limitations in stamping processes, wrinkling and material stacking defects are prone to occur at the flanging corners. To improve process feasibility, a process notch is usually created at the flanging corner. However, this process optimization measure brings new problems: after the vehicle is assembled, the process notch is exposed in the overlap gap between the fender and the headlights and front bumper, forming obvious appearance flaws and seriously affecting the overall refinement and quality image of the vehicle. To address this issue, we propose a fender structure that hides the notch to solve the above problems. Utility Model Content

[0003] The present invention aims to provide a fender structure that conceals the notch, in order to solve the problem that the manufacturing notch is exposed in the overlap gap between the fender and the headlight and the front bumper, forming an obvious appearance defect, which seriously affects the overall refinement and quality image of the vehicle.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a fender structure with a hidden notch, wherein the fender flange includes a first part that abuts against the headlight, a second part that abuts against the front bumper, and a bent part that connects the first part and the second part. The first part, the second part, and the bent part are all provided with a notch, and the headlight can cover the notch located in the first part, and the front bumper can cover the notch located in the second part.

[0005] The beneficial effects of this solution are as follows: by setting notches, the stress of the material during the bending process can be effectively released, avoiding forming defects such as wrinkling and stacking caused by stress concentration, ensuring the processing accuracy and surface quality of the fender flange, improving the product yield, and the headlights can cover the notch located in the first part, and the front bumper can cover the notch located in the second part, so that the notch is completely invisible from the vehicle's appearance. This effectively solves the problem that notches in traditional processes affect the overall aesthetics of the vehicle, and improves the appearance quality and refinement of the vehicle.

[0006] Preferably, as an improvement, the corners of the notches are rounded.

[0007] The beneficial effects are: the rounded corner treatment evenly distributes stress to the arc surface, effectively avoids stress concentration, significantly improves the fatigue strength and durability of the fender structure, and extends the service life of the parts.

[0008] Preferably, as an improvement, the ratio of the width of the notch to the width of the fender flange is in the range of 0.4-0.5.

[0009] The beneficial effects are as follows: This ratio ensures that the notch fully releases the stress during the fender flanging process, effectively avoiding defects such as wrinkling and material stacking, while also preventing the fender's structural strength from being weakened by an excessively wide notch. This notch ratio provides appropriate flow space for the material, guiding it to be evenly distributed and preventing excessive accumulation or poor flow of material at the fender corners. This improves the fender's forming accuracy and surface quality, reduces the scrap rate, and increases production efficiency. When the notch width and the fender flanging width are kept in a ratio of 0.4-0.5, the notch can be better concealed by the front bumper after assembly and is less likely to be exposed.

[0010] Preferably, as an improvement, the headlights adopt an embedded design, that is, the protruding length of the fender and the front bumper is greater than the protruding length of the headlights, and the end faces of the fender and the front bumper are coplanar, forming a continuous curved transition.

[0011] The beneficial effects are as follows: the protruding fenders and the front bumper form a protective barrier, which can withstand the impact force first when the vehicle is involved in a minor collision or scratch, protecting the relatively vulnerable headlights. The fenders and the front bumper form a continuous curved surface, which can effectively guide the airflow to pass smoothly through the front of the vehicle, reduce airflow separation and vortex generation, and reduce the drag coefficient. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the fender, headlight, and front bumper according to an embodiment of the present utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of the fender according to an embodiment of the present invention;

[0014] Figure 3 for Figure 2 A magnified schematic diagram of the gap at point B in the middle section;

[0015] Figure 4 This is a three-dimensional side view of the fender in an embodiment of the present invention.

[0016] Figure 5 for Figure 4 A magnified schematic diagram of the gap at point C in the middle;

[0017] Figure 6 for Figure 1 A magnified schematic diagram of the structure at point A in the middle. Detailed Implementation

[0018] The following detailed description illustrates the specific implementation method:

[0019] The reference numerals in the accompanying drawings include: fender 1, headlight 2, front bumper 3, first part 4, second part 5, bend 6, and notch 7.

[0020] Example

[0021] The basic implementation examples are as follows: Figure 1-6 As shown, Figure 1 The diagram shows a fender structure with a concealed notch, including a fender 1, a headlight 2, and a front bumper 3. The headlight 2 is located on the upper right side of the front bumper 3, and the fender 1 is positioned to the right of the headlight 2 and the front bumper 3. Figure 2 and Figure 4 The fender 1 shown includes a first part 4 that abuts against the headlight 2, a second part 5 that abuts against the front bumper 3, and a bent part 6 connecting the first part 4 and the second part 5, as shown. Figure 3 and Figure 5 The first part 4, the second part 5, and the bending part 6 shown are all provided with a notch 7. The part of the headlight 2 that abuts against the fender 1 can cover the notch 7 located in the first part 4. The part of the front bumper 3 that abuts against the fender 1 can cover the notch 7 located in the second part 5. The width of the notch 7 gradually increases from the first part 4 to the bending part 6 and then to the second part 5. The turning points of the notch 7 are all rounded. The ratio of the maximum width of the notch 7 to the width of the flange of the fender 1 is in the range of 0.4-0.5.

[0022] like Figure 6 The headlight 2 shown adopts an embedded design, that is, the protruding length of the fender 1 and the front bumper 3 is greater than the protruding length of the headlight 2, and the end faces of the fender 1 and the front bumper 3 are coplanar, forming a continuous curved transition.

[0023] By setting the notch 7, the stress of the material during the bending process can be effectively released, avoiding forming defects such as wrinkling and stacking caused by stress concentration. This ensures the processing accuracy and surface quality of the flanged part of the fender 1, improves the product yield, and the headlight 2 can cover the notch 7 located in the first part 4. The front bumper 3 can cover the notch 7 located in the second part 5. The notch 7 is completely invisible from the vehicle's appearance, effectively solving the problem that the notch 7 of traditional processes affects the overall appearance of the vehicle, and improving the appearance quality and refinement of the vehicle.

[0024] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A fender structure with a concealed notch, characterized in that: The fender flange includes a first part that abuts against the headlight, a second part that abuts against the front bumper, and a bent part that connects the first part and the second part. The first part, the second part, and the bent part are all provided with a notch, and the headlight can cover the notch located in the first part, and the front bumper can cover the notch located in the second part.

2. The fender structure with a concealed notch according to claim 1, characterized in that: All the corners at the bends of the gaps are rounded.

3. The fender structure with a concealed notch according to claim 2, characterized in that: The ratio of the maximum width of the notch to the width of the fender flange ranges from 0.4 to 0.

5.

4. The fender structure with a concealed notch according to claim 3, characterized in that: The headlights adopt an embedded design, meaning that the protruding length of the fenders and front bumper is greater than the protruding length of the headlights, and the end faces of the fenders and front bumper are coplanar, forming a continuous curved transition.