Wheel trim guard plate assembly and automobile

Through the connection methods such as double-layer structure and snap-on connection, the color unevenness and appearance miniaturization of the single-layer board injection molded wheel arch is solved, and the stability and appearance quality of the wheel arch guard assembly are improved.

CN120481881APending Publication Date: 2025-08-15CHERY AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202510844847.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-23
Publication Date
2025-08-15

AI Technical Summary

Technical Problem

The existing single-layer board injection molded wheel eyebrow guards are prone to uneven color and appearance miniaturization problems during the painting process, resulting in large matching gaps and affecting appearance quality.

Method used

The wheel eyebrow guard assembly adopts a double-layer structure. The first and second eyebrow boards are fixedly connected by glue layer, combined with the structures such as snaps, gantry, and positioning pins to ensure connection stability and appearance quality.

Benefits of technology

It effectively solves the problems of uneven color and appearance miniaturization, improves the stability and appearance matching effect of the wheel eyebrow guard assembly, and ensures the appearance quality of the painted wheel eyebrow.

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Abstract

The invention belongs to the field of automobiles, and provides a wheel trim guard plate assembly and an automobile, the wheel trim guard plate assembly comprises a first wheel trim plate, a plurality of second wheel trim plates and buckles, the first wheel trim plate and the plurality of second wheel trim plates are fixedly connected through glue layers, and the buckles are installed on the second wheel trim plates; a notch for avoiding the buckle is formed in the glue layer; comprising a plurality of second wheel eyebrow plates, and the second wheel eyebrow plates are fixedly connected with the first wheel eyebrow plate through glue layers; the wheel eyebrow protection plate assembly comprises the first wheel eyebrow plate and the second wheel eyebrow plate, the first wheel eyebrow plate and the second wheel eyebrow plate are fixedly connected through the glue layer, the problem that an existing wheel eyebrow structure is subjected to integral injection molding to cause appearance epitome is solved, and the requirement for ensuring the appearance quality of a paint spraying wheel eyebrow is met.
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Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and in particular relates to a wheel arch guard assembly and an automobile. Background Art

[0002] As automotive exterior trim, fenders are installed above the tire edge, matching the bumper, fenders, and side panels. They provide decorative effects, reduce wind resistance, and provide scratch protection. Therefore, fenders are a crucial component of automotive exterior trim. Traditional fender fascia assemblies are primarily defined by their grain, which absorbs microstructures and conceals surface defects, making them less noticeable to the user. Precisely because of this impact on exterior quality, fender fascia designs are typically based on single-layer injection molding. However, in recent years, with the booming automotive industry, requirements for vehicle styling and exterior quality have become increasingly stringent.

[0003] The single-layer painted wheel arches made by injection molding of existing single-layer plates will have technical problems such as shrinkage in appearance and uneven color, so a new wheel arch guard plate structure is needed. Summary of the Invention

[0004] In response to the above problems, the present invention proposes a wheel eyebrow guard plate assembly, including a first wheel eyebrow plate, several second wheel eyebrow plates and a buckle, wherein the first wheel eyebrow plate and the several second wheel eyebrow plates are fixedly connected by a glue layer, and the second wheel eyebrow plates are installed with a buckle; the glue layer is provided with a notch for avoiding the buckle.

[0005] Furthermore, two second wheel brow plates are included, and the two second wheel brow plates are fixedly connected to the first wheel brow plate through a glue layer.

[0006] A car comprises the above-mentioned wheel arch guard assembly, a body, and fenders, side skirt guards, wheel house guards and bumpers installed on the body; the side skirt guards, fenders and bumpers are connected in sequence; the outer edge of the wheel house guard contacts one side edge of the side skirt guards, fenders and bumper; the wheel arch guard assembly is installed on the outside of the edges of the side skirt guards, fenders and bumper that contact the wheel house guard.

[0007] Furthermore, the buckle passes through the hole on the fender and is engaged with the fender.

[0008] Furthermore, the line where the side edge of the first wheel arch panel contacts the outer surface of the fender is set as line a, and the minimum distance between the center point of the buckle and line a is b, which is ≤25 mm.

[0009] Furthermore, a gantry clamp is provided on the second wheel arch plate, and the gantry clamp is engaged with the groove of the bumper.

[0010] Furthermore, a positioning pin is provided on the inner surface of one end of the second wheel arch plate close to the vehicle door, and the positioning pin is installed in the positioning hole of the fender.

[0011] Furthermore, a latch is provided at an edge of the first wheel arch plate away from the tire, and the latch is installed in a latch hole of the side skirt guard plate.

[0012] Furthermore, a boss structure is provided on the surface of the bumper that cooperates with the wheel eyebrow guard plate assembly, and the boss structure abuts against a side of the second wheel eyebrow plate away from the first wheel eyebrow plate.

[0013] Furthermore, the automobile further comprises screws, and a screw seat is provided on the fender; the screw passes through the wheel cover guard plate, the second wheel eyebrow plate, the fender and is threadedly connected to the screw seat.

[0014] Beneficial effects of the present invention: 1. The fender brow guard assembly of the present invention includes a first fender brow plate and a second fender brow plate, which are fixedly connected by a glue layer, thereby solving the problem of appearance shrinkage caused by the existing fender brow structure using one-piece injection molding, thereby meeting the requirements for the appearance quality of the painted fender brow.

[0015] 2. The fender brow guard assembly of the present invention includes a plurality of second fender brow panels, each of which is fixedly connected to the first fender brow panel via a layer of glue. The second fender brow panels are connected to the first fender brow panel using a segmented structure. This reduces the stress generated in the fender brow guard assembly due to injection molding deformation of the second fender brow panels, thereby preventing the stress generated in the second fender brow panels from causing deformation of the exterior surface of the first fender brow panel. This also improves the stability of the connection between the second fender brow panels and the first fender brow panel, thereby enhancing the stability of the fender brow guard assembly.

[0016] 3. A locating pin is provided on the inner surface of the end of the second wheel arch plate close to the vehicle door of the present invention, and the locating pin is installed in the locating hole of the fender; the locating pin of the wheel arch guard assembly is close to the movement side of the door to ensure the movement clearance of the product, and the cumulative tolerance is accumulated toward the side away from the bumper, thereby ensuring the flatness of the product appearance.

[0017] 4. The bumper of the present invention is provided with a boss structure on the surface where it cooperates with the wheel eyebrow guard assembly, and the boss structure contacts the second wheel eyebrow plate; it prevents the wheel eyebrow guard assembly from sagging toward the inner side, plays a supporting role, and better controls the appearance matching effect.

[0018] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 An exploded schematic diagram of a wheel arch guard assembly in an embodiment of the present invention is shown.

[0021] Figure 2 A partial structural schematic diagram of a wheel arch guard assembly in an embodiment of the present invention is shown.

[0022] Figure 3 Shown Figure 2 Schematic diagram of the cross section at AA.

[0023] Figure 4 A partial schematic diagram of a fender flare guard assembly installed on a car in an embodiment of the present invention is shown.

[0024] Figure 5 A partial exploded schematic diagram of the wheel arch guard assembly installed on a car in an embodiment of the present invention is shown.

[0025] Figure 6 A schematic cross-sectional view of the partial structure of a wheel arch guard assembly installed on a fender in an embodiment of the present invention is shown.

[0026] Figure 7 A schematic cross-sectional view of the partial structure of a wheel arch guard assembly installed on a bumper in an embodiment of the present invention is shown.

[0027] Figure 8 A schematic cross-sectional view of the partial structure of a wheel arch guard assembly installed on a side skirt guard in an embodiment of the present invention is shown.

[0028] Figure 9 A schematic cross-sectional view of a partial structure of a wheel arch guard assembly in an embodiment of the present invention, wherein a locating pin is installed on a fender.

[0029] Figure 10 A schematic cross-sectional view of a partial structure of a wheel arch guard assembly, a fender, and a wheel cover guard connected by screws in an embodiment of the present invention is shown.

[0030] In the figure, 1. Fender guard assembly; 11. First fender guard; 12. Second fender guard; 13. Glue layer; 14. Clip; 15. Latch; 16. Gantry clamp; 17. Locating pin; 2. Fender; 21. Screw; 22. Screw seat; 3. Side skirt guard; 4. Wheel cover guard; 5. Bumper; 51. Boss structure. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] The present invention is mainly aimed at wheel arches with a colored painted appearance, because the painted wheel arches made of single-layer plate injection molding will have uneven colors (the characteristics of the injection molding process determine that single-layer plate wheel arches will have appearance shrinkage problems, resulting in large matching gaps between the wheel arches and bumpers, fenders, side panels, etc.), which will lead to problems such as poor wheel arch appearance.

[0033] In order to solve the above-mentioned problem of uneven color, the present invention proposes a new wheel arch guard assembly, and specific reference is made to the following embodiments.

[0034] Example 1, refer to Figure 1 A wheel eyebrow guard assembly includes a first wheel eyebrow plate 11, several second wheel eyebrow plates 12 and a buckle 14. The first wheel eyebrow plate 11 and the several second wheel eyebrow plates 12 are fixedly connected by a glue layer 13. The second wheel eyebrow plate 12 is equipped with a buckle 14, which passes through the second wheel eyebrow plate 12 and is fixedly connected to the fender 2; a notch is provided on the glue layer 13 to avoid the buckle 14.

[0035] Specifically, the fender flare guard assembly 1 is mainly composed of four parts: a first fender flare plate 11, a second fender flare plate 12, a glue layer 13, and a buckle 14. The first fender flare plate 11 has a smooth and flat surface. The outer surface of the first fender flare plate 11 is exposed to the outside of the vehicle and is used for surface color spraying. Therefore, the outer surface flatness of the first fender flare plate 11 and the gap between the fender 2, the side skirt guard plate 3, and the bumper 5 are very demanding. The second fender flare plate 12 is a conventional injection molded part, which mainly serves as the skeleton of the fender flare guard assembly 1. Other mounting structures or connection structures are located on the second fender flare plate 12 (see Figure 2 ); A glue layer 13 is applied between the first wheel eyebrow plate 11 and the second wheel eyebrow plate 12, and the glue layer 13 is a structural glue layer; and pressurized by the pressing tooling so that the first wheel eyebrow plate 11 and the second wheel eyebrow plate 12 are bonded together (reference Figure 3 ), before the first wheel brow plate 11 and the second wheel brow plate 12 are bonded together, the buckle 14 is installed on the second wheel brow plate 12; after the first wheel brow plate 11 and the second wheel brow plate 12 are bonded together, the buckle 14 is connected to the fender 2. The buckle 14 mainly connects the wheel brow guard plate assembly 1 and the fender 2.

[0036] Furthermore, the design of the glue layer 13 between the inner and outer plates (the first wheel brow plate 11 and the second wheel brow plate 12) adopts a circuitous design direction, which can better increase the bonding strength while reducing the use of the glue layer 13 to reduce costs.

[0037] Currently, fender flares are primarily designed using single-layer plate injection molding. The fender flare mounting structure utilizes one-piece injection molding, resulting in a complex mold. Furthermore, due to the characteristics of the injection molding process, the single-layer plate fender flare may exhibit appearance shrinkage. This structural design for painted fenders can also result in appearance defects. Therefore, the present invention includes a first fender flare plate 11 and a second fender flare plate 12, which are fixedly connected by a glue layer 13. This solves the problems of appearance shrinkage and unstable connection between the first fender flare plate 11 and the second fender flare plate 12 resulting from the use of one-piece injection molding in existing fender flare structures, thereby ensuring the appearance quality requirements of the painted fender flares.

[0038] refer to Figure 1 The present invention includes a plurality of second fender brow panels 12, each of which is fixedly connected to the first fender brow panel 11 via a glue layer 13. Preferably, the second fender brow panels 12 are connected to the first fender brow panel 11 in a segmented manner. This prevents the injection molding deformation of the second fender brow panels 12, which in turn causes stress in the fender brow guard assembly 1, thereby preventing the stress generated by the second fender brow panels 12 from causing deformation of the exterior surface of the first fender brow panel 11.

[0039] Furthermore, the second fender 12 is connected to the first fender 11 in a segmented manner using three second fenders 12, so as to solve the problem of the injection deformation of the second fender 12 and the stress generated in the fender guard assembly 1, thereby avoiding the stress generated by the second fender 12 causing the deformation of the appearance surface of the first fender 11.

[0040] Example 2, refer to Figure 4 , an automobile, comprising a wheel arch guard assembly as described in Example 1, a body and a fender 2, a side skirt guard 3, a wheel house guard 4 and a bumper 5 installed on the body, the side skirt guard 3, the fender 2 and the bumper 5 being connected in sequence, and the side skirt guard 3, the fender 2 and the bumper 5 being installed at the wheel frame end of the wheel house guard 4, and the side edges of the side skirt guard 3, the fender 2 and the bumper 5 close to the wheel house guard 4 after splicing are consistent in shape with the side edges of the wheel house guard 4; the wheel arch guard assembly 1 is installed on the outside of the edges of the side skirt guard 3, the fender 2 and the bumper 5 that are in contact with the wheel house guard 4.

[0041] refer to Figure 6 The buckle 14 passes through the hole on the fender 2 and is engaged with the fender 2. The line where the side of the first wheel brow plate 11 contacts the outer surface of the fender 2 is set as line a, and the minimum distance between the center point of the buckle 14 and line a is b, which is ≤25mm.

[0042] Specifically, the fender 2 and fender 11 are connected using plastic clips 14. The spacing between adjacent clips 14 is evenly spaced at 120mm-140mm. While ensuring sheet metal forming (the fender 2 is manufactured using sheet metal forming, and the grooves or bends created by sheet metal forming must meet minimum dimensions; otherwise, the quality of the resulting fender 2 will be substandard), the distance between the clips 14 and the gap between the fender 2 and the fender 1 is minimized, effectively controlling the clearance fit. The first fender 11 and fender 2 are fitted with a clearance of 0.5mm. This connection using the clips 14 effectively improves assembly efficiency while ensuring a consistent assembly and disassembly cycle.

[0043] refer to Figure 7 The second wheel brow plate 12 is provided with a gantry clip 16, which is engaged with the groove of the bumper 5. Specifically, the wheel brow guard assembly 1 and the bumper 5 are connected by the gantry clip 16, and the connection spacing is evenly arranged according to 120mm-140mm. The gantry clip 16 is set on the second wheel brow plate 12, as close as possible to the gap between the first wheel brow plate 11 and the bumper 5. During the assembly process, the tongue of the gantry clip 16 is used (refer to Figure 7 The raised plate on the gantry card 16 is the tongue) elastically deforms and slides into the matching groove of the bumper 5. When the tongue slides completely into the slot, it deforms and rebounds to jam the slot, which can effectively control the gap matching surface and facilitate disassembly through the characteristics of the plastic parts.

[0044] refer to Figure 9 A locating pin 17 is provided on the inner surface of the end of the second fender 12 closest to the door. This locating pin 17 is installed in a locating hole in the fender 2. Specifically, the locating pin 17 of the fender 1 is positioned closer to the door's movement side to ensure product movement clearance. The accumulated tolerance accumulates toward the side away from the bumper 5 to maintain product appearance.

[0045] refer to Figure 8 A latch 15 is provided at the edge of the first fender 11 away from the tire. The latch 15 is installed in the latch hole of the side skirt guard 3. The fender 11 assembly 1 is connected to the side skirt guard 3 using the latch 15. During assembly of the fender 11 assembly, the latch 15 is first inserted into the latch hole of the side skirt guard 3. The latch 15 ensures that the fender 1 assembly 1 and the side skirt guard 3 are properly matched, effectively controlling the difference and edge alignment.

[0046] refer to Figure 7The bumper 5 is provided with a boss structure 51 on the surface where it mates with the fender flare guard assembly 1. The boss structure 51 abuts the side of the second fender flare panel 12 that is away from the first fender flare panel 11. Specifically, the boss structure 51 is arranged on the bumper 5 and fits with the second fender flare panel 12 with a clearance of 0.5 mm. This prevents the fender flare guard assembly 1 from collapsing inward, provides support, and better controls the appearance of the vehicle.

[0047] refer to Figure 10 The vehicle further includes a screw 21 , a screw seat 22 is provided on the fender 2 , the screw 21 passes through the wheel arch guard plate 4 , the second wheel eyebrow plate 12 and the fender 2 and is threadedly connected to the screw seat 22 .

[0048] Specifically, the side flange of the wheel eyebrow guard assembly 1 is provided with a raised plate near the tire side (refer to Figure 10 In the figure, the second wheel eyebrow panel 12 (a panel protruding toward the wheel house guard 4) is connected to the wheel house guard 4 and the fender 2 with screws 21. A square hole is opened on the fender 2, and a screw seat 22 is arranged on the square hole. The wheel house guard 4, the wheel eyebrow guard assembly 1 and the fender 2 are assembled according to the assembly sequence. The wheel house guard 4, the second wheel eyebrow panel 12 and the fender 2 are threadedly connected with the screw seat 22, and the wheel eyebrow guard assembly 1, the wheel house guard 4 and the fender 2 are locked, so that the wheel eyebrow guard assembly 1 is fixed more firmly to the vehicle.

[0049] Specifically, the present invention, through the above-described matching structure, ultimately embodies a novel fender flare structural design, ensuring the appearance of painted fender flares while resolving issues such as poor appearance and structural instability. By utilizing a double-layer fender flare (first fender flare plate 11 and second fender flare plate 12) for bonding, along with a gantry clamp 16, latch 15, and locating pin 17, the fender flare guard assembly 1 is effectively controlled for appearance quality, fit, and structural stability, resolving a number of issues associated with painted fender flares.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0051] In the description of the present invention, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine different embodiments or examples described in the present invention and features of different embodiments or examples without contradiction.

Claims

1. A wheel eyebrow guard assembly, characterized in that: The invention comprises a first wheel brow plate (11), a plurality of second wheel brow plates (12) and a buckle (14); the first wheel brow plate (11) and the plurality of second wheel brow plates (12) are fixedly connected via a glue layer (13); the second wheel brow plate (12) is provided with a buckle (14); and the glue layer (13) is provided with a notch for avoiding the buckle (14).

2. The wheel arch guard assembly according to claim 1, characterized in that: It comprises two second wheel brow plates (12), and the two second wheel brow plates (12) are fixedly connected to the first wheel brow plate (11) via a glue layer (13).

3. A car, characterized in that: The invention comprises a wheel arch guard assembly as claimed in claim 1 or 2, a vehicle body and a fender (2), a side skirt guard (3), a wheel cover guard (4) and a bumper (5) mounted on the vehicle body; the side skirt guard (3), the fender (2) and the bumper (5) are connected in sequence; the outer edge of the wheel cover guard (4) contacts one side edge of the side skirt guard (3), the fender (2) and the bumper (5); the wheel arch guard assembly (1) is mounted on the outer side of the edges of the side skirt guard (3), the fender (2) and the bumper (5) that contact the wheel cover guard (4).

4. The automobile according to claim 3, characterized in that: The buckle (14) passes through the hole on the fender (2) and is engaged with the fender (2).

5. The automobile according to claim 4, characterized in that: The line where the side of the first wheel arch plate (11) contacts the outer surface of the fender (2) is set as line a, and the minimum distance between the center point of the buckle (14) and line a is b, where b≤25mm.

6. The automobile according to claim 3, characterized in that: A gantry clamp (16) is provided on the second wheel brow plate (12), and the gantry clamp (16) is clamped with a groove of the bumper (5).

7. The automobile according to claim 3, characterized in that: A positioning pin (17) is provided on the inner surface of one end of the second wheel arch plate (12) close to the vehicle door, and the positioning pin (17) is installed in the positioning hole of the fender (2).

8. The automobile according to claim 3, characterized in that: A latch (15) is provided at an edge of the first wheel brow plate (11) away from the tire, and the latch (15) is installed in a latch hole of the side skirt guard plate (3).

9. The automobile according to claim 3, characterized in that: A boss structure (51) is provided on the surface of the bumper (5) that cooperates with the wheel eyebrow guard plate assembly (1), and the boss structure (51) abuts against a side of the second wheel eyebrow plate (12) away from the first wheel eyebrow plate (11).

10. The automobile according to claim 3, characterized in that: The automobile further comprises a screw (21), and a screw seat (22) is provided on the fender (2); the screw (21) passes through the wheel cover guard plate (4), the second wheel eyebrow plate (12), the fender (2), and is threadedly connected to the screw seat (22).