Concealed wheel arches, body components and vehicle

Abstract

This utility model relates to the field of vehicle technology and discloses a concealed wheel arch, a body component, and a vehicle. The concealed wheel arch is suitable for connection with the front bumper and fender, with the front bumper and fender forming a wheel clearance area. The edges of the front bumper and fender that contact each other form a front bumper boundary. The concealed wheel arch includes: a wheel arch body, disposed in the wheel clearance area and matching the shape of the front bumper and fender; and a transition area fastening part, disposed in the wheel arch body, located near the front bumper boundary, and connected to the front bumper via a fastening assembly. The concealed wheel arch provided by this utility model reduces the overall vehicle weight, reduces wind resistance, and improves range. Increasing the number of positioning points effectively reduces the installation gap of the concealed wheel arch at the junction of the front bumper and fender, ensuring uniform wheel arch gap after installation and improving overall aesthetics and stability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a concealed wheel arch, body assembly, and vehicle. Background Technology

[0002] Wheel arches are decorative or functional components installed around the wheels of a car. Traditional front wheel arches are generally external, making them heavier and more expensive. With the development of electric vehicles, to improve range, it is necessary to reduce wind resistance and overall vehicle weight, while also meeting wheel guard and corrosion protection requirements. Therefore, concealed wheel arches have emerged. Concealed wheel arches are characterized by being long, narrow, flexible, and easily deformable. They are also lighter, effectively reducing overall vehicle weight, wind resistance, and thus improving range.

[0003] However, due to the overall vehicle posture, the installation gap of the concealed wheel arches is difficult to control, which can easily lead to poor uniformity of the concealed wheel arch gaps. Utility Model Content

[0004] In view of this, the present invention provides a concealed wheel arch and vehicle to solve the problem of difficulty in controlling the installation gap of concealed wheel arches.

[0005] In a first aspect, this utility model provides a concealed wheel arch, suitable for connection with a front bumper and fender, wherein the front bumper and fender together form a wheel clearance area, and the edges of the front bumper and fender that contact each other form a front bumper boundary portion; the concealed wheel arch includes:

[0006] The wheel arch body is located in the wheel clearance area and matches the shape of the front bumper and fender;

[0007] The transition zone fastener is located on the wheel arch body, near the front bumper boundary, and is connected to the front bumper via a fastening assembly.

[0008] Beneficial effects: The embodiments of this utility model employ concealed wheel arches, which are lighter in weight, effectively reducing the overall vehicle weight and wind resistance, thereby improving range. Simultaneously, by setting a transition zone fastening part near the front bumper boundary, the number of positioning points is increased, effectively reducing the installation gap of the concealed wheel arches at the junction of the front bumper and fender, ensuring uniform wheel arch gap after installation, and improving overall aesthetics and stability.

[0009] In one alternative embodiment, the transition zone fastening portion is provided with a mounting hole, and the fastening component is adapted to pass through the mounting hole;

[0010] The distance between the centerline of the mounting hole and the boundary of the front bumper is L, which satisfies: L≤30mm.

[0011] Beneficial Effects: Due to the design of the front bumper and fenders during vehicle manufacturing, they have outward protrusions in the Y direction, making concealed wheel arches prone to twisting after installation. By limiting the distance L between the centerline of the mounting holes and the boundary of the front bumper to ≤30mm, the fit between the concealed wheel arches and the front bumper is improved, effectively preventing twisting after installation. This ensures that the concealed wheel arches match the curvature of the front bumper and fenders, guaranteeing consistent rotation and preventing excessive or insufficient rotation. Simultaneously, precise control of the mounting hole position ensures uniform fastening force during installation, further optimizing the installation accuracy of the concealed wheel arches and effectively reducing the installation gap at the junction of the front bumper and fenders.

[0012] In one alternative implementation, a front bumper bracket is also connected to the front bumper near the front bumper boundary, and the front bumper and fender are connected via the front bumper bracket.

[0013] The fastening assembly is suitable for securing concealed wheel arches, front bumpers, and front bumper brackets. The fastening assembly includes:

[0014] The fastening screw and fastening nut are provided. The fastening screw passes through the mounting hole. The fastening nut includes a nut body that is screwed to the fastening screw and a snap-fit ​​part that is adapted to snap onto the front bumper bracket.

[0015] Beneficial effects: By using fastening screws and nuts, the concealed wheel arches are further securely fixed to the front bumper and fenders, ensuring the relative positional stability of the three components and preventing loosening due to driving vibrations, thus improving the overall structural durability and reliability. Furthermore, by making reasonable use of the front bumper bracket, no additional fixing structure is required, simplifying the installation process and reducing manufacturing costs.

[0016] In one alternative implementation, the edge of the fender near the wheel clearance area forms a flange, and the concealed wheel arch further includes a pre-mounted structure adapted to engage with the flange.

[0017] The pre-mounted structure is located on the upper surface of the wheel arch body along the Z direction.

[0018] Beneficial effects: After the pre-attached structure is attached to the flange, it can effectively lock the hidden wheel arch and prevent the hidden wheel arch from flipping in the Z direction when it is fastened by the fastening components, thereby ensuring that the relative position of the hidden wheel arch with the front bumper and fender is accurate.

[0019] In one optional embodiment, there are multiple pre-attached structures, which are spaced apart along the extension direction of the wheel arch body.

[0020] Beneficial effects: By setting multiple pre-mounted structures, which are spaced apart along the extension direction of the wheel arch body, the fixing force can be evenly distributed, further improving the fit between the concealed wheel arch and the fender, thereby achieving the required clearance for the entire concealed wheel arch. It also effectively reduces deformation problems caused by localized stress concentration.

[0021] In one alternative implementation, the concealed wheel arch further includes:

[0022] The main positioning part is adapted to be fixedly connected to the front bumper, and the end of the main positioning part is set near the wheel arch body; the main positioning part is adapted to serve as the installation reference for the concealed wheel arch and the front bumper.

[0023] Beneficial effects: Because the main positioning part is located at one end close to the wheel arch body, the main positioning part can be assembled first during the assembly process of the concealed wheel arch, so that it can be quickly positioned. This makes it convenient for the main positioning part to serve as the installation benchmark for the concealed wheel arch and the front bumper, avoiding repeated adjustments and improving assembly efficiency.

[0024] In one alternative embodiment, the concealed wheel arch further includes a Y-direction positioning part, which is adapted to be fixedly connected to the front bumper, and the Y-direction positioning part is disposed between the main positioning part and the transition area fastening part along the extension direction of the wheel arch body.

[0025] Beneficial effects: By further setting a Y-axis positioning part between the main positioning part and the transition zone fastening part, the accurate positioning of the concealed wheel arch in the Y-axis can be ensured, avoiding offset during assembly and enhancing the stability of the overall structure.

[0026] In one alternative embodiment, the concealed wheel arch further includes: a wheel cover matching part, which is disposed along the Y direction on one side of the wheel arch body, and the wheel cover matching part is adapted to match the wheel cover;

[0027] The wheel cover matching part has a wheel cover mounting hole, and the wheel cover is provided with a wheel cover mounting part suitable for passing through the wheel cover mounting hole.

[0028] Beneficial effects: The assembly of the wheel arch mounting parts with the wheel arch mounting holes ensures a tight fit between the wheel arch and the wheel arch body, improving the overall structural sealing. The wheel arch mating part matches the wheel arch and also acts as a barrier against mud and sand. This protects the fenders and wheel guards, meeting corrosion resistance requirements.

[0029] Secondly, this utility model also provides a vehicle body component, including:

[0030] The front bumper and fenders together form a wheel clearance zone.

[0031] Wheel covers, installed in the wheel clearance area;

[0032] And as mentioned above, concealed wheel arches are suitable for simultaneous fixed connection with the front bumper, fenders, and wheel arches.

[0033] Since the body components include concealed wheel arches, which have the same effect as concealed wheel arches, they will not be described in detail here.

[0034] Thirdly, this utility model also provides a vehicle, comprising:

[0035] The vehicle body, which includes the wheels;

[0036] And as described above, the body assembly forms a wheel avoidance zone, and the wheels are adapted to be arranged in the wheel avoidance zone.

[0037] Since the vehicle includes concealed wheel arches, which have the same effect as concealed wheel arches, they will not be described in detail here. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the concealed wheel arch of this utility model;

[0040] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0041] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0042] Figure 4 This is a side view of the fender, front bumper, wheel arches, and concealed wheel arches of this utility model;

[0043] Figure 5 This is a side view of the front bumper, wheel arches, and concealed wheel arches of this utility model;

[0044] Figure 6 for Figure 5 A schematic diagram of the C-section;

[0045] Figure 7 This is a schematic diagram showing the installation of the fender, front bumper, wheel arches, and concealed wheel arches of this utility model.

[0046] Figure 8 for Figure 7 Enlarged view at point D;

[0047] Figure 9 This is a schematic diagram showing the installation of the front bumper, wheel arches, and concealed wheel arches of this utility model;

[0048] Figure 10 for Figure 9 Enlarged view of point E in the middle.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1. Concealed wheel arch; 11. Wheel arch body; 12. Pre-mounted structure; 13. Transition zone fastening part; 131. Mounting hole; 14. Y-direction positioning part; 15. Main positioning part; 16. Wheel cover matching part; 161. Wheel cover mounting hole;

[0051] 2. Fender; 21. Flanged edge; 3. Front bumper; 31. Front bumper boundary; 4. Wheel cover; 41. Wheel cover mounting piece; 51. Fastening screw; 52. Fastening nut; 521. Nut body; 522. Snap-fit ​​part; 6. Front bumper bracket. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0053] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0054] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0056] Wheel arches are decorative or functional components installed around the wheels of a car. Traditional front wheel arches are generally external, making them heavier and more expensive. With the development of electric vehicles, to improve range, it is necessary to reduce wind resistance and overall vehicle weight, while also meeting wheel guard and corrosion protection requirements. Therefore, concealed wheel arches have emerged. Concealed wheel arches are characterized by being long, narrow, flexible, and easily deformable. They are also lighter, effectively reducing overall vehicle weight, wind resistance, and thus improving range.

[0057] However, due to the overall vehicle posture, the front bumper and fenders have outward protrusions in the Y-direction (left-right direction of the vehicle body) caused by their design. This makes the concealed wheel arches prone to twisting after installation. Furthermore, the large gap at the junction of the front bumper and fenders makes it difficult to control the installation gap of the concealed wheel arches, resulting in poor uniformity of the gap.

[0058] The following is combined Figures 1 to 10 The following describes embodiments of the present invention.

[0059] First, referring to the accompanying drawings, the directions in this embodiment will be explained: In the drawings, the X direction can specifically be the vehicle's front-to-back direction, the Y direction is the vehicle's left-to-right direction, and the Z direction is the vehicle's up-to-down direction. The X, Y, and Z directions are all perpendicular to each other, forming a three-dimensional coordinate system. The labels in the drawings clearly show the relative positions of each direction, facilitating the understanding of the structure and function of this embodiment.

[0060] According to an embodiment of the present invention, in one aspect, a concealed wheel arch 1 is provided, suitable for connection with a front bumper 3 and a fender 2, wherein the front bumper 3 and the fender 2 enclose a wheel clearance area, and the edges of the front bumper 3 and the fender 2 that contact each other form a front bumper boundary portion 31; the concealed wheel arch 1 includes:

[0061] The wheel arch body 11 is located in the wheel clearance area and matches the shape of the front bumper 3 and the fender 2;

[0062] The transition zone fastening part 13 is provided on the wheel arch body 11. The transition zone fastening part 13 is provided near the front bumper boundary part 31, and the transition zone fastening part 13 is connected to the front bumper 3 via a fastening assembly.

[0063] Both the front bumper 3 and the fender 2 are exterior parts of the vehicle and are widely used in related technologies, so they will not be explained in detail here. The front bumper 3 and the fender 2 enclose a wheel avoidance zone, within which the vehicle's wheels are adapted to rotate freely. In this embodiment, the concealed wheel arch 1 is located in the wheel avoidance zone and fits closely to the shape of the front bumper 3 and the fender 2.

[0064] Because the gap at the junction of the front bumper 3 and the fender 2 is large, it is difficult to control the installation gap of the hidden wheel arch 1. In this embodiment, a transition area fastening part 13 is set near the boundary part 31 of the front bumper, thereby increasing the number of positioning points and effectively reducing the installation gap of the hidden wheel arch 1 at the junction of the front bumper 3 and the fender 2, ensuring that the wheel arch gap is uniform after installation, and improving the overall aesthetics and stability.

[0065] Furthermore, the embodiments of this utility model employ concealed wheel arches 1, which are lighter in weight, effectively reducing the overall vehicle weight, decreasing wind resistance, and thus improving range.

[0066] In some embodiments, the transition region fastening portion 13 is provided with a mounting hole 131, and the fastening component is adapted to pass through the mounting hole 131;

[0067] The distance between the centerline of the mounting hole 131 and the front guard boundary 31 is L, which satisfies: L≤30mm.

[0068] Due to the design of the front bumper 3 and fender 2 during vehicle manufacturing, there are outward protrusions in the Y direction, making the hidden wheel arch 1 prone to twisting after installation. By limiting the distance L between the axis of the mounting hole 131 and the boundary 31 of the front bumper to ≤30mm, the fit between the hidden wheel arch 1 and the front bumper 3 is improved, effectively preventing the twisting phenomenon after installation. This ensures that the shape curvature of the hidden wheel arch 1 matches that of the front bumper 3 and fender 2, guaranteeing that the amount of rotation of the hidden wheel arch 1 is consistent with that of the front bumper 3 and fender 2, avoiding excessive or insufficient rotation. At the same time, by precisely controlling the position of the mounting hole 131, the fastening components can provide uniform fastening force during installation, further optimizing the installation accuracy of the hidden wheel arch 1 and effectively reducing the installation gap of the hidden wheel arch 1 at the junction of the front bumper 3 and fender 2.

[0069] In some embodiments, combined with Figure 9 As shown, the front bumper 3 is also connected to the front bumper bracket 6 near the front bumper boundary 31, and the front bumper 3 and the fender 2 are connected via the front bumper bracket 6.

[0070] The fastening assembly is suitable for securing the concealed wheel arches, front bumper 3, and front bumper bracket 6 together. The fastening assembly includes:

[0071] The fastening screw 51 and the fastening nut 52 are provided. The fastening screw 51 passes through the mounting hole 131. The fastening nut 52 includes a nut body 521 that is screwed to the fastening screw 51, and a snap-fit ​​portion 522 that is adapted to snap onto the front bumper bracket 6.

[0072] A front bumper bracket 6 is also connected to the front bumper 3 near the front bumper boundary 31. The front bumper bracket 6 is fixed to the front bumper 3 and tightly connected to the fender 2, thus tightly connecting the front bumper 3 and the fender 2 together. Simultaneously, the cooperation of the fastening screws 51 and fastening nuts 52 further securely fixes the concealed wheel arch 1 to the front bumper 3 and the fender 2, ensuring the relative position stability of the three components, preventing loosening due to driving vibrations, and improving the overall structural durability and reliability. Furthermore, by making reasonable use of the front bumper bracket 6, no additional fixing structure is required, simplifying the installation process and reducing manufacturing costs.

[0073] The snap-fit ​​portion 522 of the fastening nut 52 snaps into the front bumper bracket 6, facilitating the pre-assembly of the fastening nut 52 and the front bumper bracket 6. This enables rapid assembly of the concealed wheel arch 1 with the front bumper 3 and fender 2, improving installation efficiency. Furthermore, the snap-fit ​​portion 522 ensures the fastening nut 52 is secure and does not easily fall off, further strengthening the overall structural tightness, effectively resisting vibration and impact under complex road conditions, and extending service life.

[0074] In some embodiments, combined with Figure 8 As shown, the edge of the fender 2 near the wheel avoidance area forms a flange 21, and the concealed wheel arch also includes: a pre-mounted structure 12, which is adapted to engage with the flange 21.

[0075] The pre-mounted structure 12 is located on the upper surface of the wheel arch body 11 along the Z direction.

[0076] The fender 2 is a sheet metal part, and its edge near the wheel avoidance area forms a flange 21. Specifically, the flange 21 is formed by the main body of the fender 2 folding in the Y direction toward the inside of the vehicle body.

[0077] The pre-mounted structure 12 is snapped onto the flange 21, thereby ensuring that the concealed wheel arch 1 fits tightly with the fender 2, thus fixing the concealed wheel arch 1 and effectively preventing the wheel arch from loosening during driving.

[0078] In the specific assembly process, the hidden wheel arch 1 can be initially fixed to the front bumper 3 and the fender 2, and then the pre-attached structure 12 can be snapped onto the flange 21 to realize the assembly of the hidden wheel arch 1 onto the fender 2. Finally, it can be fixed by fastening screws 51 and fastening nuts 52 to ensure that all parts are tightly connected.

[0079] After the pre-attached structure 12 is attached to the flange 21, the hidden wheel arch 1 can be effectively locked, preventing the hidden wheel arch 1 from flipping in the Z direction when it is fastened by the fastening component, thereby ensuring that the relative position of the hidden wheel arch 1 with the front bumper 3 and the fender 2 is accurate.

[0080] In some embodiments, there are multiple pre-mounted structures 12, which are distributed at intervals along the extension direction of the wheel arch body 11.

[0081] By setting multiple pre-mounted structures 12, which are spaced apart along the extension direction of the wheel arch body 11, the fixing force can be evenly distributed, further improving the fit between the concealed wheel arch 1 and the fender 2, thereby achieving the required clearance for the entire concealed wheel arch 1. This also effectively reduces deformation problems caused by localized stress concentration.

[0082] In some embodiments, the concealed wheel arch also includes:

[0083] The main positioning part 15 is adapted to be fixedly connected to the front bumper 3, and the main positioning part 15 is provided at one end near the wheel arch body 11; the main positioning part 15 is adapted to serve as the mounting reference for the concealed wheel arch and the front bumper 3.

[0084] The main positioning part 15 can be a raised structure that precisely matches the groove of the front bumper 3, ensuring quick alignment during installation, enhancing connection stability, reducing assembly errors, and further improving the overall structural robustness.

[0085] Since the main positioning part 15 is located at one end close to the wheel arch body 11, the main positioning part 15 can be assembled first during the assembly process of the hidden wheel arch 1, so that it can be quickly positioned and the main positioning part 15 can serve as the installation reference for the hidden wheel arch and the front bumper 3, avoiding repeated adjustments and improving assembly efficiency.

[0086] In some embodiments, combined with Figure 1 As shown, the concealed wheel arch also includes a Y-direction positioning part 14, which is adapted to be fixedly connected to the front bumper 3, and the Y-direction positioning part 14 is disposed between the main positioning part 15 and the transition area fastening part 13 along the extension direction of the wheel arch body 11.

[0087] By further providing a Y-direction positioning part 14 between the main positioning part 15 and the transition zone fastening part 13, the accurate positioning of the concealed wheel arch 1 in the Y direction can be ensured, avoiding offset during assembly and enhancing the stability of the overall structure.

[0088] In some embodiments, combined with Figure 1 As shown, the concealed wheel arch also includes a wheel cover matching part 16, which is disposed along the Y direction on one side of the wheel arch body 11, and the wheel cover matching part 16 is adapted to match the wheel cover 4.

[0089] The wheel cover matching part 16 has a wheel cover mounting hole 161, and the wheel cover 4 is provided with a wheel cover mounting part 41 that is suitable for passing through the wheel cover mounting hole 161.

[0090] In this embodiment, the wheel arch matching part 16 is disposed along the Y direction on the side of the wheel arch body 11 facing the vehicle interior. The wheel arch matching part 16 can match the wheel arch 4 and also serves to shield against mud and sand. This achieves the function of protecting the fender 2 and the wheel guard plate, and meets the anti-corrosion requirements.

[0091] By assembling the wheel cover mounting part 41 with the wheel cover mounting hole 161, the wheel cover 4 and the wheel arch body 11 are tightly connected, improving the overall sealing performance.

[0092] According to an embodiment of the present invention, another aspect provides a vehicle body assembly, comprising:

[0093] The front bumper 3 and fender 2 together form a wheel avoidance zone;

[0094] Wheel cover 4, installed in the wheel clearance area;

[0095] And as mentioned above, concealed wheel arches are suitable for simultaneous fixed connection with the front bumper 3, fender 2 and wheel arch 4.

[0096] According to an embodiment of the present invention, in another aspect, a vehicle is also provided, comprising:

[0097] The vehicle body, which includes the wheels;

[0098] And as described above, the body assembly forms a wheel avoidance zone, and the wheels are adapted to be arranged in the wheel avoidance zone.

[0099] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.

Claims

1. A hidden wheel arch characterized in that, Suitable for connection with the front bumper (3) and fender (2), the front bumper (3) and fender (2) enclosing a wheel avoidance area, the edges of the front bumper (3) and fender (2) in contact forming a front bumper boundary (31); the concealed wheel arch includes: The wheel arch body (11) is located in the wheel avoidance area and matches the shape of the front bumper (3) and the fender (2); A transition zone fastening part (13) is provided on the wheel arch body (11). The transition zone fastening part (13) is provided close to the front bumper boundary part (31), and the transition zone fastening part (13) is connected to the front bumper (3) via a fastening assembly.

2. The concealed wheel arch of claim 1, wherein, The transition zone fastening part (13) is provided with a mounting hole (131), and the fastening component is adapted to pass through the mounting hole (131); The distance between the centerline of the mounting hole (131) and the front guard boundary (31) is L, which satisfies: L≤30mm.

3. The concealed wheel arch of claim 2, wherein, The front bumper (3) is also connected to a front bumper bracket (6) near the front bumper boundary (31), and the front bumper (3) and the fender (2) are connected via the front bumper bracket (6); The fastening assembly is adapted to securely connect the concealed wheel arch, the front bumper (3), and the front bumper bracket (6), and the fastening assembly includes: The fastening screw (51) and the fastening nut (52) are provided, wherein the fastening screw (51) passes through the mounting hole (131); the fastening nut (52) includes a nut body (521) that is screwed to the fastening screw (51) and a snap-fit ​​portion (522) adapted to snap onto the front bumper bracket (6).

4. The concealed wheel arch of claim 1, wherein, The fender (2) forms a flange (21) near the edge of the wheel avoidance area. The hidden wheel arch also includes a pre-mounted structure (12), which is adapted to be snapped into the flange (21). The pre-attached structure (12) is disposed on the upper surface of the wheel arch body (11) along the Z direction.

5. The concealed wheel arch of claim 4, wherein, The number of pre-attached structures (12) is multiple, and the multiple pre-attached structures (12) are distributed at intervals along the extension direction of the wheel arch body (11).

6. The concealed wheel arch of claim 1, wherein, The concealed wheel arch also includes: The main positioning part (15) is adapted to be fixedly connected to the front bumper (3), and the main positioning part (15) is provided at one end near the wheel arch body (11); the main positioning part (15) is adapted to serve as the mounting reference for the hidden wheel arch and the front bumper (3).

7. The concealed wheel arch of claim 6, wherein, The concealed wheel arch further includes a Y-direction positioning part (14), which is adapted to be fixedly connected to the front bumper (3), and the Y-direction positioning part (14) is disposed between the main positioning part (15) and the transition area fastening part (13) along the extension direction of the wheel arch body (11).

8. The concealed wheel arch of any one of claims 1 to 7, wherein, The concealed wheel arch further includes a wheel cover matching part (16), which is disposed along the Y direction on one side of the wheel arch body (11), and the wheel cover matching part (16) is adapted to match the wheel cover (4); The wheel cover matching part (16) has a wheel cover mounting hole (161), and the wheel cover (4) is provided with a wheel cover mounting member (41) suitable for passing through the wheel cover mounting hole (161).

9. A vehicle body assembly characterized by, include: The front bumper (3) and the fender (2) together form a wheel avoidance zone; Wheel cover (4), installed in the wheel avoidance area; And a concealed wheel arch as described in any one of claims 1 to 8, the concealed wheel arch being adapted to be fixedly connected to the front bumper (3), the fender (2) and the wheel arch (4) simultaneously.

10. A vehicle characterized by comprising: include: The vehicle body includes wheels; And a vehicle body assembly as described in claim 9, the vehicle body assembly having a wheel avoidance zone, the wheel being adapted to be disposed in the wheel avoidance zone.

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