A wheel cover and a wheel assembly thereof

Abstract

The application discloses a wheel decoration cover and a wheel assembly thereof, wherein the wheel decoration cover comprises a decoration cover body, a group of air holes are arranged on the decoration cover body, a clamping leg structure for clamping on a wheel spoke is arranged on the back surface of the decoration cover body, and an elastic structure for matching with the wheel is arranged on the back surface of the outer edge of the decoration cover body. The clamping leg structure is a group of elastic clamping legs arranged along the circumference of the decoration cover body. The elastic clamping legs are arranged on the back surface of the decoration cover body, and an elastic body for matching with the wheel is arranged close to the outer edge, so that reliable contact is achieved, and dynamic friction noise is avoided. The inner and outer height limiting structures are used for limiting, so that the assembly is simple and flat.

Description

Technical Field

[0001] This invention relates to the field of automobile wheel technology, and in particular to a wheel cover and its wheel assembly. Background Technology

[0002] Currently, the development of both traditional and new energy vehicles increasingly focuses on energy consumption as a key competitive factor. There are many ways to reduce energy consumption, one of which is that the rotation of the wheels during vehicle movement generates wind resistance, consuming a significant amount of energy. To reduce the wind tunnel area caused by the design of the wheel rims, plastic decorative covers are added to the Y-axis of the wheels. However, ensuring a proper fit between the decorative cover and the wheel is difficult, leading to issues such as abnormal noise, deformation, and assembly difficulties.

[0003] For example, Chinese patent CN116215133A discloses a wheel decorative cover, which is used to install on one axial end of the wheel. The wheel decorative cover includes a body and multiple limiting structures. The body is used to cover the side of the wheel close to the body in the axial direction of the wheel. The multiple limiting structures are all set on the side of the body facing the wheel. The body is installed on the spokes of the wheel through the limiting structures. The edge of the decorative cover is prone to abnormal noise between the wheel and the wheel, and the flatness of the decorative cover assembly is difficult to guarantee. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a wheel decorative cover and its wheel assembly to effectively prevent abnormal noises and simplify assembly.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A wheel decorative cover includes a cover body with a set of wind tunnels, a clamping foot structure for locking onto the wheel spokes on the back of the cover body, and an elastic structure for matching the wheel on the outer edge of the cover body.

[0007] The retaining foot structure is a set of elastic retaining feet arranged circumferentially along the body of the decorative cover.

[0008] The back of the decorative cover body is provided with a set of reinforcing ribs corresponding to the edge of the wind tunnel.

[0009] The elastic structure is a set of elastic protrusions arranged circumferentially along the body of the decorative cover.

[0010] The back of the decorative cover body is provided with a slot, and one end of the elastic protrusion is fixed in the slot.

[0011] The decorative cover body forms a fan-shaped area corresponding to each wind tunnel, and two adjacent fan-shaped areas are provided with a pair of elastic retaining feet.

[0012] The decorative cover body has an inner limiting protrusion in the middle area, and the inner limiting protrusion and the elastic boss have the same extension height.

[0013] The elastic protrusion is located between a pair of elastic latches.

[0014] The inner limiting protrusion has a circumferential locking foot on its inner side, and a locking spring is provided on the inner side of the circumferential locking foot.

[0015] A wheel assembly includes a wheel body and a wheel cover, wherein the locking structure is engaged with the spokes of the corresponding wheel body, and the elastic structure of the edge of the wheel cover engages with the wheel body.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The wheel cover and its wheel assembly have a reasonable structural design. The cover is secured by a set of clips on the back, and an elastic body matching the wheel is arranged circumferentially near the outer edge, which helps to ensure reliable contact and avoid abnormal noise from dynamic friction. The inner and outer equal height limiting structure makes assembly simple and flat. Attached Figure Description

[0018] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0019] Figure 1 This is a schematic diagram of the outer side of the wheel decorative cover of the present invention.

[0020] Figures 2 to 4 This is a schematic diagram of the inner side of the wheel decorative cover of the present invention.

[0021] Figure 5 This is a partial cross-sectional view of the present invention.

[0022] Figure 6 This is a schematic diagram showing the fit between the decorative cover and the wheel edge of the present invention.

[0023] In the picture:

[0024] 1-1. Sector I, 1-2. Sector II, 1-3. Sector III, 1-4. Sector IV, 1-5. Sector V

[0025] 2. The middle area of ​​the decorative cover body,

[0026] 3. Boss structure, 3-1. Boss I, 3-2. Boss II, 3-3. Boss III, 3-4. Boss IV, 3-5. Boss V, 4. Clamping foot structure, 4-1 to 4-10. Clamping feet,

[0027] 5-1. Wind Tunnel I, 5-2. Wind Tunnel II, 5-3. Wind Tunnel III, 5-4. Wind Tunnel IV, 5-5. Wind Tunnel V

[0028] 6. Reinforcing rib I, 7. Reinforcing rib II,

[0029] 8. Snap ring,

[0030] 9. Inner limit protrusion. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0032] like Figures 1 to 6 As shown, the wheel cover includes a cover body I, a set of wind tunnels on the cover body, a fan-shaped area corresponding to each wind tunnel on the cover body, a clamping foot structure for locking onto the wheel spokes on the back of the cover body, and an elastic structure for matching the wheel on the outer edge of the cover body.

[0033] The clamping structure 4 is a set of elastic clamping feet arranged around the circumference of the decorative cover body. Two adjacent elastic clamping feet form a pair, and the pair of clamping feet are clamped on both sides of the wheel spokes. The installation is simple, stable and reliable.

[0034] The elastic structure consists of a set of elastic protrusions arranged circumferentially along the body of the decorative cover; a slot is provided on the back of the body of the decorative cover, and one end of the elastic protrusion is fixed in the slot; the elastic protrusion is preferably a rubber block; a set of clips is designed on the back of the decorative cover for elastic fixation, and an elastic body matching the wheel is arranged circumferentially near the outer edge, which helps to ensure reliable contact and avoid abnormal noise from dynamic friction.

[0035] The back of the decorative cover body is provided with a set of reinforcing ribs corresponding to the edge of the wind tunnel. The set of reinforcing ribs improves the structural strength of the wind tunnel edge and reduces vibration.

[0036] Two adjacent sector areas are provided with a pair of elastic locking feet, and the elastic protrusion is located between the pair of elastic locking feet, which is compact and stable and reliable.

[0037] The decorative cover body has an inner limiting protrusion 9 in the middle area. The inner limiting protrusion and the elastic boss have the same extension height. The inner and outer limiting structures with the same height limit each other make the assembly simple and flat.

[0038] The inner limit protrusion has a circumferential locking foot on its inner side, and a retaining spring 8 is provided on the inner side of the circumferential locking foot; this ensures that when the decorative cover is inserted into the center hole of the aluminum ring, it is elastic and will not produce plastic deformation or abnormal noise after multiple operations.

[0039] The wheel assembly includes a wheel body and a wheel cover, with a locking structure that locks onto the spokes of the corresponding wheel body, and an elastic structure at the edge of the wheel cover that engages with the wheel body.

[0040] A preferred embodiment of the present invention is as follows:

[0041] Figures 1 to 4 This is a three-dimensional structural diagram of the automotive decorative cover of the present invention. The automotive decorative cover includes an injection-molded decorative cover body I, a clamping foot structure 4 and a central fixing clamping foot spring 8 fixedly connected to the wheel, which are respectively fitted with buckles in the Y direction to the spokes and center hole of the wheel. The length direction of the vehicle body is defined as the first direction X, the width direction of the vehicle body as the second direction Y, and the height direction of the vehicle body as the third direction Z. The three directions are perpendicular to each other. A rectangular coordinate system is established with the first, second, and third directions, and the origin of the rectangular coordinate system is located at the midpoint of the line connecting the centers of the two front wheels.

[0042] The decorative cover assembly consists of a main body divided into five blades. The central area 2 of the front of the decorative cover body features the vehicle logo. Ten locking feet are located on the inner side, with spring plates setting a fixed angle to provide locking force between the decorative cover and the alloy wheel spokes. An elastic limiting boss structure 3 is provided on the outer circumferential edge, and a Y-axis limiting structure is provided on the inner circumferential edge, forming a support structure. Reinforcing ribs are provided in the middle section to prevent assembly deformation.

[0043] The car decorative cover is composed of five parts: fan-shaped area I1-1, fan-shaped area II1-2, fan-shaped area III1-3, fan-shaped area IV1-4, and fan-shaped area V1-5, each with a fan angle of 72°. Each fan-shaped area has different concave and convex curved surfaces matched with the shape style of the car model, and a set of air vents is set in the middle. The set of air tunnels is wind tunnel I5-1, wind tunnel II5-2, wind tunnel III5-3, wind tunnel IV5-4, and wind tunnel V5-5, which facilitates the dissipation of heat generated during high-speed rotation of the wheels and braking.

[0044] The central area 2 of the decorative cover body is decorated with different logos, designed with different styles in terms of shape and structure, which can match the aesthetics of the wheel assembly.

[0045] Around the outer circumference of the decorative cover, where it contacts the matching aluminum ring, there are five boss pads: boss I 3-1, boss II 3-2, boss III 3-3, boss IV 3-4, and boss V 3-5, each measuring 13mm × 4mm. A magnified view shows that each boss is located in the middle of the retaining foot 4. The boss pads are made of a different material than the main body, such as rubber. Figure 6 As shown, each small slot is embedded in the main body and firmly glued to prevent the plastic decorative cover from contacting the aluminum ring and thus avoid friction and noise from the gaps in the design.

[0046] The inner edge of the decorative cover has an inner limiting protrusion 9 at the same height as the outer edge pad. The limiting protrusion 9 matches the pad boss to determine the Y-axis height of the decorative cover on the wheel. Corresponding boss pads are set at a total of 5 circumferential locations to ensure flat assembly, prevent vibration and abnormal noise, and reflect the three-dimensional effect of the wheel cover.

[0047] At 3 / 4 of the diameter of the inner side of the decorative cover, there are 10 fixing feet (4-1 to 4-10), which are respectively fixed and secure to the 5 spokes of the aluminum ring. These feet are evenly distributed on both sides of each spoke. Figure 5 The spring clip shown has a 45° angle and a depth of 13mm, providing a certain pulling force and ensuring a secure latch.

[0048] Five concave wind tunnels are set within the five fan-shaped areas of the main body. The area of ​​each wind tunnel is calculated based on the influence of wind resistance. The design value of the area of ​​each wind tunnel in this model is 4303 mm². 2 This is to achieve the effect of heat dissipation.

[0049] Furthermore, in terms of improving the concave wind tunnel, in order to avoid the resonance noise caused by the concave shape during the high-speed rotation of the aluminum ring, reinforcing ribs are added around the wind tunnel. Four reinforcing ribs I6 are set on the long side of the wind tunnel, and three reinforcing ribs II7 are set on the short side of the wind tunnel, with a design thickness of 1.5mm, to strengthen the support.

[0050] When installing the wheel, a positioning reference needs to be designed on the inside of the decorative cover in the XZ plane to ensure accurate orientation during installation. At this time, the center part of the inside of the decorative cover is designed as a circumferential retaining foot. The inside of the retaining foot is designed with a retaining spring 8 with a diameter of 2mm to ensure that the decorative cover is elastic when inserted into the center hole of the aluminum ring, and will not produce plastic deformation or abnormal noise after multiple operations.

[0051] This invention, through the rational design of its internal structure and the effective design of its surface shape, effectively reduces the impact of wind resistance when the wheel rotates; at the same time, the elastic design of the back clamp and the outer edge matching limit block, through effective matching with the wheel rim, effectively avoids the probability of abnormal noise and the difficulty of assembly due to deformation.

[0052] The above description is merely an illustration of preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0053] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the concept and technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A wheel cover comprising a cover body having a set of air scoops formed therein, the back surface of the cover body having a snap-in structure for snap-in engagement with a wheel spoke, characterized in that: The outer back edge of the decorative cover body is provided with an elastic structure for matching with the wheel; The elastic structure is a set of elastic protrusions arranged circumferentially along the decorative cover body; the back of the decorative cover body is provided with a slot, and one end of the elastic protrusion is fixed in the slot; the middle area of ​​the decorative cover body is provided with an inner limiting protrusion, and the extension height of the inner limiting protrusion and the elastic protrusion is the same; the inner side of the inner limiting protrusion is provided with a circumferential locking foot, and the inner side of the circumferential locking foot is provided with a locking spring.

2. The wheel cover of claim 1 wherein: The retaining foot structure is a set of elastic retaining feet arranged circumferentially along the body of the decorative cover.

3. The wheel cover of claim 1 wherein: The back of the decorative cover body is provided with a set of reinforcing ribs corresponding to the edge of the wind tunnel.

4. The wheel cover of claim 1 wherein: The decorative cover body forms a fan-shaped area corresponding to each wind tunnel, and two adjacent fan-shaped areas are provided with a pair of elastic retaining feet.

5. The wheel cover of claim 4 wherein: The elastic protrusion is located between a pair of elastic latches.

6. A wheel assembly comprising a wheel body, characterised in that: It also includes the wheel cover as described in any one of claims 1 to 5, wherein the locking structure is locked onto the spoke of the corresponding wheel body, and the elastic structure of the edge of the wheel cover cooperates with the wheel body.

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