Suspension hub cap and wheel with the same

Abstract

The application discloses a suspension wheel cover and a wheel with the same. The suspension wheel cover comprises a base and a cover body assembly. The cover body assembly is rotatably connected to the base. The cover body assembly comprises a cover body, a rotating shaft and a counterweight structure. The cover body comprises a top wall and a side wall surrounding the periphery of the top wall. An inner surface of the top wall and an inner circumferential surface of the side wall form a receiving space. The counterweight structure is arranged in the receiving space and is offset from the rotating shaft. The maximum dimension of the counterweight structure along the radial direction of the rotating shaft is 6-15 times the maximum dimension of the counterweight structure along the axial direction of the rotating shaft. The suspension wheel cover provided in the application can reduce the overall thickness of the suspension wheel cover and improve the assembly versatility and reliability of the suspension wheel cover.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and in particular to a floating hubcap and a wheel with the floating hubcap. Background Technology

[0002] With the development of the automotive industry, car exterior decorations are becoming increasingly intelligent and personalized. Among these features, the wheel hub has a decorative element, the hubcap, on which the car's logo is displayed. Currently, hubcaps typically come in two structural designs: one where the hubcap rotates with the wheel, and another where the hubcap does not rotate when the wheel rotates.

[0003] The design principle of this floating hubcap is that the hubcap has a bearing in the middle, and the hubcap does not rotate with the hub, so it is always in a floating state relative to the entire hub.

[0004] The floating wheel hubcaps in the related technology have the following areas for improvement: Their overall thickness along the axial direction is relatively large, making them unsuitable for some models with shallow center bores, resulting in poor overall assembly versatility and high manufacturing costs. Furthermore, the counterweight in these technologies protrudes inward from the cover of the car logo, requiring the base to typically provide clearance for this protruding counterweight, which further increases the overall thickness of the floating wheel hubcap.

[0005] Therefore, it is necessary to propose a floating hub cover and a wheel with the floating hub cover to solve at least one of the above problems.

[0006] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Summary of the Invention

[0007] In view of the deficiencies of the related technologies, the present application provides a floating hub cover and a wheel with the floating hub cover, which can reduce the overall thickness of the floating hub cover and improve the assembly versatility and reliability of the floating hub cover during use.

[0008] The specific technical solution of the embodiments of this application is as follows: A suspended hub cover includes a base and a cover assembly, the cover assembly being rotatably connected to the base. The cover assembly includes at least a cover body, a rotating shaft, and a counterweight structure. The cover body includes a top wall and a side wall surrounding the top wall. The inner surface of the top wall and the inner circumferential surface of the side wall form an accommodating space. The counterweight structure is disposed in the accommodating space and offset from the rotating shaft. The maximum dimension of the counterweight structure along the radial direction of the rotating shaft is 6-15 times its maximum dimension along the axial direction of the rotating shaft.

[0009] In a preferred embodiment, the inner surface of the top wall is spherical, and the counterweight structure does not protrude from the end face of the side wall away from the top wall along the axial direction of the rotation axis.

[0010] In a preferred embodiment, the end face of the counterweight structure away from the top wall is a plane, and the plane is flush with the end face of the side wall away from the top wall.

[0011] In a preferred embodiment, the counterweight structure has an upper side and a lower side, the upper side forming a clearance space between itself and the pivot for mounting the base, and the lower side contacting the sidewall.

[0012] In a preferred embodiment, the weight of the counterweight structure accounts for more than 30% of the weight of the cover assembly.

[0013] In a preferred embodiment, the counterweight structure is generally fan-shaped, and the central angle of the fan structure does not exceed 180°.

[0014] In a preferred embodiment, the ratio of the total thickness of the cover and the offset counterweight to the total thickness of the cover assembly along the axial direction of the pivot is between 25% and 43%.

[0015] In a preferred embodiment, the wall thickness of the cover is 1mm-1.5mm.

[0016] In a preferred embodiment, the cover and the pivot are integrally formed.

[0017] In a preferred embodiment, the outer surface of the cover is provided with a car logo decorative structure; or, the cover assembly further includes a car logo decorative cover, on which the car logo decorative structure is provided, and the car logo decorative cover is installed on the outer surface of the cover.

[0018] In a preferred embodiment, the suspended hub cover further includes a bearing, the base is mounted in the center hole of the hub, and the cover assembly is rotatably connected to the base via the bearing.

[0019] In a preferred embodiment, the counterweight structure has an upper side and a lower side, with a clearance space formed between the upper side and the rotating shaft; a bearing mounting seat for mounting the bearing is provided on the outer surface of the base, and part of the bearing mounting seat and the bearing are located within the clearance space.

[0020] In a preferred embodiment, the bearing mounting base includes a plurality of circumferentially spaced lobes, each lobe having a root that engages with the inner surface of the cover and an end opposite to the root, the end being provided with a limiting step for preventing the bearing from dislodging, and the bearing mounting base being located within the clearance space in the portion near the limiting step.

[0021] In a preferred embodiment, the distance between the end of the bearing mount and the inner surface of the top wall along the axial direction of the shaft is less than or equal to 1 mm.

[0022] In a preferred embodiment, a protrusion is formed on the inner surface of the base from the outer surface of the base at the position corresponding to the bearing mounting seat at the middle of the base, and a snap-fit ​​portion is provided on the periphery of the inner surface of the base. Along the axial direction of the rotating shaft, the protrusion does not exceed the snap-fit ​​portion.

[0023] In a preferred embodiment, the base has a central hole for the rotating shaft to pass through, and the other end of the rotating shaft does not extend beyond the base along the axial direction of the rotating shaft.

[0024] A wheel includes a hub having a central hole of a predetermined depth, a suspended hub cover as described above mounted on the hub, a base mounted within the central hole, and a cover assembly rotatably connected to the base via a bearing.

[0025] The technical solution of the present invention has the following significant beneficial effects: The suspended hub cover provided in this application optimizes the design of the counterweight structure and places it in the accommodating space of the cover. Specifically, the maximum dimension of the counterweight structure in the radial direction of the rotating shaft is 6-15 times its maximum dimension in the axial direction of the rotating shaft. This allows the counterweight structure to extend fully in the direction perpendicular to the rotating shaft and to be effectively compressed in the direction parallel to the rotating shaft, i.e., in the thickness direction of the suspended hub cover, forming a flat distribution structure. This effectively reduces the axial dimension of the counterweight structure, thereby helping to reduce the overall thickness of the suspended hub cover and improve its assembly versatility.

[0026] In addition, the counterweight structure adopts a radially flat and long, axially thin structure, which can reduce the rotational inertia of the cover assembly around the axis of rotation. The smaller the rotational inertia, the faster the response speed of the cover assembly to reset under the influence of gravity torque after being disturbed, avoiding the brief positive offset caused by reset lag. In other words, it can optimize rotational inertia, improve reset sensitivity, and improve reliability during use.

[0027] Specific embodiments of the invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Within the spirit and scope of the appended claims, embodiments of the invention include many changes, modifications, and equivalents. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0028] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0029] Figure 1 This is an exploded view of a suspended hub cover provided in the embodiments of this application; Figure 2 This is a front view of a floating hub cover provided in the embodiments of this application; Figure 3 for Figure 2 A type of AA sectional view; Figure 4 for Figure 2 Another AA section view; Figure 5 This is a schematic diagram of the structure of a cover assembly for a suspended wheel hub cover provided in the embodiments of this application; Figure 6 This is a front view of a cover assembly for a suspended wheel hub cover provided in an embodiment of this application; Figure 7 This is a side view of a cover assembly for a suspended hub cover provided in an embodiment of this application; Figure 8 for Figure 7 BB section view in the middle; Figure 9 This is a schematic diagram of the structure of a suspension hub cover base provided in the embodiments of this application; Figure 10 This is a front view of the base of a suspended hub cover provided in the embodiments of this application; Figure 11 This is a side view of the seat of a suspended hub cover provided in the embodiments of this application.

[0030] Reference numerals in the figures of this application: 1. Cover assembly; 11. Cover; 111. The outer surface of the cover; 112. The inner surface of the cover; 1120. Limiting platform; 113. Top wall; 114. Side wall; 12. Shaft; 121. Stop and retaining groove; 13. Counterweight structure; 131. Upper side; 132. Lower side; 14. Car logo decorative cover; 15. Make way; 2. Bearings; 3. Base; 30. Center hole; 31. The outer surface of the base; 32. The inner surface of the base; 33. Bearing mounting base; 331. Limiting step; 34. Protruding part; 35. Connecting part; 351. Card slot; 4. Stop plate; 5. Snap ring; 6. Car logo decorative structure. Detailed Implementation

[0031] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.

[0032] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] The floating hubcaps in related technologies typically consist of multiple independent components, such as: a logo trim cover, an injection-molded body, a counterweight, and an axle. These components need to be manufactured separately and then assembled using specific installation or fixing methods.

[0035] Overall, the aforementioned hovering part, which serves as a cover assembly, has numerous components and requires the development of multiple molds (decorative cover mold, shaft mold, counterweight block mold, and overall injection mold), resulting in high production costs.

[0036] When this shaft is connected to the car logo trim cover, sufficient connection strength must be ensured at the connection point. Taking the connection between one end of the shaft and the car logo trim cover via injection molding as an example, a sufficiently thick connector is required at one end of the shaft to ensure the reliability of the connection between the shaft and the car logo trim cover. However, when the connector is thick, it will significantly increase the axial dimension of the cover assembly, resulting in an increase in the thickness dimension of the floating wheel hub cover. This makes it unsuitable for some models with shallow wheel hub center hole depths, thus resulting in poor assembly versatility.

[0037] This application provides a floating hub cover that can reduce the overall thickness of the floating hub cover and improve the assembly versatility and reliability during use.

[0038] Please refer to the following for comprehensive information. Figures 1 to 11 This application specification provides a suspended hub cover, which may include a base 3 and a cover assembly 1. The cover assembly 1 is rotatably connected to the base 3. The cover assembly 1 includes at least a cover 11, a rotating shaft 12, and a counterweight structure 13.

[0039] The cover 11 includes a top wall 113 and side walls 114 surrounding the top wall 113. The inner surface of the top wall 113 and the inner circumferential surface of the side walls 114 form an accommodating space. The counterweight structure 13 is disposed in the accommodating space. The maximum dimension of the counterweight structure 13 along the radial direction of the rotating shaft 12 is 6-15 times its maximum dimension along the axial direction of the rotating shaft 12.

[0040] In this embodiment, after optimizing the design of the counterweight structure 13, it is placed in the accommodating space of the cover 11. Specifically, the maximum dimension of the counterweight structure 13 along the radial direction of the rotating shaft 12 is 6-15 times its maximum dimension along the axial direction of the rotating shaft 12, preferably 7-15 times, or 6-12 times, or 8-13 times, or 9-14 times, or 10-15 times, or 11-15 times. This allows the counterweight structure 13 to extend fully in the direction perpendicular to the rotating shaft 12, and its dimension in the direction parallel to the rotating shaft 12, i.e., the thickness direction of the suspension hub cover, to be effectively compressed, forming a flat distribution structure. This effectively reduces the axial dimension of the counterweight structure 13, thereby helping to reduce the overall thickness of the suspension hub cover and improve the assembly versatility of the suspension hub cover.

[0041] In addition, the counterweight structure 13 adopts a radially flat and long structure with an axially thin structure, which can reduce the moment of inertia of the cover assembly 1 rotating around the axis 12. The smaller the moment of inertia, the faster the response speed of the cover assembly 1 to reset under the influence of gravity torque after being disturbed, thus avoiding the brief positive offset caused by reset lag. In other words, it can optimize rotational inertia, improve reset sensitivity, and improve reliability during use.

[0042] In one embodiment, the counterweight structure 13 is disposed in the accommodating space and does not protrude from the accommodating space.

[0043] In this embodiment, the cover 11 has a top wall 113 and a receiving space formed within the top wall 113 for accommodating the counterweight structure 13. The counterweight structure 13 may be partially or entirely located within the receiving space.

[0044] When the counterweight structure 13 is entirely disposed within the accommodating space of the cover 11 and does not protrude from the accommodating space, i.e., does not protrude from the end face of the side wall 114 away from the top wall 113, it can be ensured that the counterweight structure 13 will not increase the axial dimension, thereby ensuring that the overall thickness of the suspension hub cover is not increased, which is beneficial to ensuring the assembly versatility of the suspension hub cover. When the counterweight structure 13 does not protrude from the end face of the side wall 114 away from the top wall 113, the cover assembly 1 has no extra protruding parts that the base 3 needs to avoid, which helps to simplify the structure of the base 3; in addition, it can also avoid structural interference between the counterweight structure 13 and other components.

[0045] The inner surface of the top wall 113 can be spherical. When the inner surface of the top wall 113 is spherical, more space can be formed to accommodate the counterweight structure 13 compared to a planar structure. In addition, the top wall 113 of the cover can protrude outward from the hub, which means that more counterweight structures 13 can be placed outside without occupying the depth of the central hole 30, which is more conducive to reducing the depth requirement of the central hole 30 for the floating hub cover and improving its adaptability.

[0046] In one specific embodiment, the end face of the counterweight structure 13 away from the top wall 113 is a plane, and the plane is flush with the end face of the side wall 114 away from the top wall 113.

[0047] When the end face of the counterweight structure 13 away from the top wall 113 is flush with the side wall 114 of the cover 11, it ensures that the overall thickness of the suspension hub cover is not increased, which is beneficial to ensuring the assembly versatility of the suspension hub cover. The position of the cover 11 where the counterweight structure 13 is set is a plane, which helps to simplify the structure and reduce the difficulty of processing and production; when the counterweight structure 13 is flush with the side wall 114 of the cover 11, the counterweight structure 13 can make full use of the space inside the cover 11 to achieve a rational layout.

[0048] Of course, in other embodiments, this application does not exclude the possibility that the end face of the counterweight structure 13 away from the top wall 113 is non-planar. When the end face of the counterweight structure 13 away from the top wall 113 is non-planar, its highest point is lower than the end face of the side wall 114 away from the top wall 113.

[0049] In this embodiment, the center of gravity of the cover assembly 1 is located below the rotating shaft 12. When the center of gravity of the cover assembly 1 is located below the rotating shaft 12, this center of gravity arrangement makes the cover assembly 1 form a mechanical structure similar to a roly-poly toy. During the rotation of the wheel hub, gravity will generate a restoring torque, automatically correcting the position of the car logo and keeping it stationary relative to the ground. This design fundamentally solves the problem of traditional car logos that are difficult to identify when rotating with the wheel hub, making the car logo pattern clearly visible throughout the entire driving process.

[0050] One end of the rotating shaft 12 is located at the middle of the inner surface 112 of the cover. The counterweight structure 13 can be located on the inner surface 112 of the cover, offset from the rotating shaft 12. Furthermore, the counterweight structure 13 can be located on the inner surface 112 of the cover below the rotating shaft 12.

[0051] Regarding the counterweight structure 13, the counterweight structure 13 can be integrally disposed on the inner surface 112 of the cover body below the rotating shaft 12; alternatively, the counterweight structure 13 can include multiple counterweight parts, wherein it is not excluded that some counterweight parts are located above the rotating shaft 12. For example, the lighter counterweight parts can be located above the rotating shaft 12, and the heavier counterweight parts can be located below the rotating shaft 12, thereby ensuring that the center of gravity of the cover body assembly 1 is located below the rotating shaft 12.

[0052] Please refer to the following: Figure 5 , Figure 6 , Figure 7 and Figure 8 In some embodiments, the cover 11 and the rotating shaft 12 are integrally formed. Further, the cover 11, the rotating shaft 12, and the counterweight structure 13 are integrally formed.

[0053] In this embodiment, the cover assembly 1 includes at least a cover 11, a rotating shaft 12, and a counterweight structure 13. At least the cover 11 and the rotating shaft 12 can be integrally molded. By integrally molding the cover 11 and the rotating shaft 12, the increased injection molding thickness required to ensure the strength of the rotating shaft 12 and the decorative cover when injection molded together can be reduced, thereby reducing the overall thickness of the floating wheel hub cover and improving its assembly versatility. Simultaneously, it simplifies the number of parts in the floating wheel hub cover, eliminates multiple assembly steps, simplifies the production process, reduces mold and labor costs, improves production efficiency, and effectively reduces manufacturing costs.

[0054] Furthermore, the cover 11, the rotating shaft 12, and the counterweight structure 13 can be integrally formed. Specifically, the rotating shaft 12 and the counterweight structure 13 are integrally formed on the inner surface 112 of the cover, and one end of the rotating shaft 12 is located in the middle of the inner surface 112 of the cover.

[0055] The cover assembly 1, which includes the cover body 11, the pivot 12, and the counterweight structure 13, can be integrally manufactured from the same material. For example, it can be injection molded, or it can be manufactured by metal processing or casting. Alternatively, the cover assembly 1 can be integrally formed by other means. The forming method can also be other methods and is not limited to the above description. Those skilled in the art may make other changes under the guidance of the technical essence of this application. However, as long as the function and effect achieved are the same as or similar to those of this application, they should be covered within the scope of protection of this application.

[0056] Furthermore, by integrally molding the cover assembly 1, the assembly gaps that may occur between parts can be eliminated, which can reduce the risk of parts loosening or falling off due to vehicle vibration, thereby reducing the structural failure rate and improving the reliability of the floating wheel hub cover during use.

[0057] In this embodiment, the floating hub cover is used to mount on a hub, wherein the hub is provided with a central hole 30 for mounting the floating hub cover. Please refer to the following reference. Figure 1 , Figure 2 , Figure 3 and Figure 4 The floating hubcap may primarily consist of a cover assembly 1, which is rotatably connected to the center hole 30 of the hub via a bearing 2. The cover 11 is located on the outermost side along the axial direction of the rotating shaft 12. Furthermore, the floating hubcap may also include other assembly parts.

[0058] like Figure 3 As shown, in one embodiment, the outer surface 111 of the cover is provided with a car logo decorative structure 6.

[0059] In this embodiment, the logo decoration structure 6 is directly set on the outer surface 111 of the cover, which is equivalent to integrally molding the logo decoration cover 14 with the cover assembly 1. That is, the logo decoration cover 14, the cover 11, the pivot 12, and the counterweight structure 13 are integrally molded. By directly setting the logo decoration structure 6 on the outer surface 111 of the cover, structural stability can be ensured, the production process can be simplified, the number of parts can be reduced, and the manufacturing cost can be lowered.

[0060] Or, such as Figure 4 As shown, in another embodiment, the cover assembly 1 may further include a car logo decorative cover 14, on which the car logo decorative structure 6 is provided, and the car logo decorative cover 14 is installed on the outer surface 111 of the cover.

[0061] In this embodiment, to improve the versatility of the cover assembly 1, the car logo decorative cover 14 with the car logo decorative structure 6 can be separated from the cover assembly 1. Thus, for different brands, only the car logo decorative cover 14 needs to be replaced to set the corresponding brand logo, thus meeting the decorative requirements of the floating wheel hub cover.

[0062] The separate design of the logo decorative cover 14 and the cover body 11 increases product diversity. The cover body component 1, formed by the integrated molding of the cover body 11, the pivot 12, and the counterweight structure 13, serves as the basic structure and can be combined with different logo decorative covers 14 to achieve differentiated designs. This separate design facilitates later replacement or personalization, thus better adapting to different car models and market demands. Furthermore, when the logo decorative cover 14 and the cover body component 1 are set separately, they can be made of different materials to meet different functional requirements and allow for flexible selection of processing techniques. For example, to enhance the decorative effect, the logo decorative cover 14 can be made of metal, while to reduce manufacturing costs and difficulty, the cover body component 1 can be made of injection molded material.

[0063] Specifically, the car logo decorative cover 14 is installed on the outer surface 111 of the cover body by means of adhesive bonding or detachable connection.

[0064] For example, when the car logo decorative cover 14 is installed on the outer surface 111 of the cover body by adhesive bonding, this bonding method can achieve a seamless connection between the cover body 11 and the car logo decorative cover 14, improving the appearance and enhancing waterproof and dustproof performance. When the car logo decorative cover 14 is installed on the outer surface 111 of the cover body by adhesive bonding, a groove with a predetermined path can be provided on the outer surface 111 of the cover body, and the groove is used to fill adhesive. During bonding, adhesive can be filled into the groove, and then the car logo decorative cover 14 is installed on the cover body 11 to achieve bonding between the two. Specifically, the depth of the groove can be between 0.2mm and 0.3mm to store a sufficient thickness of adhesive to firmly attach the car logo decorative cover 14 to the cover body 11. The predetermined path of the groove can be at least two layers of annular grooves arranged circumferentially, and a connecting groove extending radially to connect the inner and outer layers of annular grooves. Of course, the predetermined path of the groove is not limited to the example above; it only needs to ensure that the car logo decorative cover 14 can be reliably adhered to the cover body 11.

[0065] The basic structure of the logo decorative cover 14 is similar to that of the outer surface 111 of the cover body. In order to facilitate the alignment and tolerance installation of the logo decorative cover 14 on the cover body 11, a draft angle is added to the side wall 114 of the cover body 11 to form a wedge surface.

[0066] When the car logo decorative cover 14 is installed on the outer surface 111 of the cover body via a detachable connection, it facilitates maintenance and replacement, reducing after-sales costs.

[0067] The two installation methods described above can be adapted to different production conditions and usage scenarios. Of course, the specific installation method of the car logo decorative cover 14 can also be other methods, and is not limited to the above description. Those skilled in the art may make other changes based on the technical essence of this application, but as long as the function and effect achieved are the same as or similar to this application, they should all be covered within the scope of protection of this application.

[0068] In one embodiment, the counterweight structure 13 has an upper side 131 and a lower side 132 opposite to each other, with an clearance space 15 formed between the upper side 131 and the pivot 12, and the lower side 132 contacting the sidewall 114.

[0069] In this embodiment, the counterweight structure 13 can be a flat fan-shaped structure, the center line of the counterweight structure 13 can pass through the diameter of the cover 11, and the counterweight structure 13 is symmetrically arranged.

[0070] The side of the counterweight structure 13 closest to the rotating shaft 12 is the upper side 131, and a clearance space 15 is formed between the upper side 131 and the rotating shaft 12. This clearance space 15 is mainly used for the installation of subsequent rotating components, such as bearings 2.

[0071] The side of the counterweight structure 13 facing away from the rotating shaft 12 is the lower side 132, which is seamlessly connected to the side wall 114 of the cover 11. This allows the counterweight structure 13 and the side wall 114 of the cover 11 to support each other structurally, enhancing the structural strength of the counterweight area. Even under severe bumpy road conditions, the counterweight structure 13 is not easily deformed by gravity or inertia, ensuring the stability of the center of gravity and providing structural assurance for the reliability of the suspension effect.

[0072] In one embodiment, the weight of the counterweight structure 13 is 5g or more.

[0073] In this embodiment, the weight of the counterweight structure 13 is 5g or more; further, the weight of the counterweight structure 13 is 10g or more, so that the counterweight structure 13 can provide sufficient counterweight weight, thereby generating a stable gravitational torque, so that the cover assembly 1 can overcome the friction and inertial interference of the bearing 2 when the hub rotates, and reliably maintain a relatively stationary state.

[0074] In one embodiment, the weight of the counterweight structure 13 accounts for more than 30% of the weight of the cover assembly 1. When the weight of the counterweight structure 13 accounts for more than 30% of the weight of the cover assembly 1, it can provide sufficient gravitational torque to accurately adjust the center of gravity distribution of the cover assembly, thereby ensuring that the car logo always maintains a preset visually upright posture and avoiding posture distortion caused by insufficient counterweight (such as tilting of the car logo or character offset), thus ensuring the visual consistency and aesthetics of the vehicle's exterior decoration.

[0075] In one embodiment, the counterweight structure 13 is generally fan-shaped, and the central angle of the fan structure does not exceed 180°.

[0076] In this embodiment, the counterweight structure 13 adopts a fan-shaped structure, which can concentrate the counterweight weight in the edge area away from the rotating shaft 12. According to the mechanical formula (gravitational torque = weight × lever arm), under the same weight, the longer the lever arm (away from the rotating shaft 12), the greater the gravitational torque. Therefore, compared with a circular counterweight, it can save counterweight material, while achieving a stronger anti-rotation effect, reducing production costs and the overall weight of the car logo.

[0077] In this embodiment, when the central angle of the fan-shaped structure does not exceed 180°, it can be ensured that the center of gravity of the cover assembly 1 is in a relatively low position, at least below the pivot 12.

[0078] The ratio of the maximum dimension of the counterweight structure 13 along the radial direction of the rotating shaft 12 to its maximum dimension along the axial direction of the rotating shaft 12 can be determined by a combination of factors, including the thickness and radial dimension of the suspension hub cover, the specific distribution location, structure, material, and weight of the counterweight structure 13.

[0079] Taking the counterweight structure 13 as the aforementioned fan-shaped structure, with a minimum radius of 2.5cm for the floating hub cover and a radius of 1.2cm for the circle corresponding to the clearance space, the thickness of the floating hub cover is 0.5cm, and the thickness of the counterweight structure 13 is 0.4cm. The counterweight structure 13 is made of stainless steel and its weight must be above 10g.

[0080] Assuming the chord length of the sector structure is L, according to the weight calculation formula for counterweight structure 13: (6.25arcsin(L / 5) - 1.44arcsin(0.48)) L / 5 )) 0.4 7.85 = 10, find L, L is at least 2.7cm; then the ratio of the maximum dimension of the counterweight structure 13 in the radial direction of the rotating shaft 12 to its maximum dimension in the axial direction of the rotating shaft 12 is: 2.7 / 0.4 = 6.75.

[0081] When the chord length L of the sector structure is the same as the diameter of the suspended hub cover, the ratio of the maximum dimension of the counterweight structure 13 in the radial direction of the rotating shaft 12 to its maximum dimension in the axial direction of the rotating shaft 12 reaches its maximum. For example, if the diameter of the suspended hub cover is generally within 6cm, then the ratio of the maximum dimension of the counterweight structure 13 in the radial direction of the rotating shaft 12 to its maximum dimension in the axial direction of the rotating shaft 12 is: 6 / 0.4=15.

[0082] Overall, the counterweight structure 13 is flattened within the cover 11. The ratio of the maximum dimension of the counterweight structure 13 in the radial direction of the rotating shaft 12 to its maximum dimension in the axial direction of the rotating shaft 12 is between 6 and 15. Of course, in the embodiments of this application, it is not excluded that when the counterweight structure 13 is made of other materials, has a different weight or structure, or is used in a car logo of a different size, the ratio of the maximum dimension of the counterweight structure 13 in the radial direction of the rotating shaft 12 to its maximum dimension in the axial direction of the rotating shaft 12 may be outside the above range.

[0083] Please refer to the following: Figure 9 , Figure 10 and Figure 11In one embodiment, the hub is provided with a central hole 30 having a predetermined depth dimension, and the suspended hub cover further includes: a bearing 2, the base 3 is installed in the central hole 30, the base 3 remains relatively stationary with respect to the hub, and the cover assembly 1 is rotatably connected to the base 3 via the bearing 2.

[0084] In this embodiment, different vehicle models can have center holes 30 with different depths. The overall thickness of the floating wheel cover generally needs to be less than, equal to, or slightly greater than the depth of the center hole 30. If the overall thickness of the floating wheel cover is too large, it cannot be installed within the center hole 30 of the wheel. The floating wheel cover provided in this embodiment is particularly suitable for wheel hubs with shallow center holes 30, such as those with a depth of less than 12mm, where existing floating wheel covers cannot achieve in-line installation in the thickness direction.

[0085] The base 3 serves to mount bearings and fix the cover assembly, and also engages with the wheel hub for the final installation of the suspending hub cover. During installation, the cover assembly 1 is rotatably connected to the base 3 via the bearing 2, and then the base is installed within the center hole 30 of the wheel hub, thus achieving the core function of keeping the cover assembly 1 stationary relative to the ground. In this embodiment, since the counterweight structure 13 without protruding cover 11 does not affect the demolding structure of the base 3, the base 3 can be designed as a single piece, thereby reducing manufacturing costs.

[0086] In one embodiment, the counterweight structure 13 has an upper side 131 and a lower side 132, with an clearance space 15 formed between the upper side 131 and the rotating shaft 12; a bearing mounting seat 33 for mounting the bearing 2 is provided on the outer surface 31 of the base, and the bearing mounting seat 33 and the bearing 2 are installed in the clearance space 15.

[0087] In this embodiment, the bearing mounting base 33 is mainly used to mount the bearing 2. By incorporating the bearing mounting base 33 and the bearing 2 into the clearance space 15, a high degree of structural integration is achieved: this compact design significantly reduces the overall axial dimension of the logo, enabling the product to fit the shallow center hole 30 of the wheel hub; in addition, placing the bearing 2 assembly within the clearance space 15 effectively protects the bearing 2; at the same time, it avoids motion interference between the bearing 2 and the counterweight structure 13, reduces wear and noise, and extends service life.

[0088] Specifically, the bearing mounting base 33 may include a plurality of lobes spaced apart along the circumference. Each lobe has a root that connects to the inner surface 112 of the cover and an end opposite to the root. The end is provided with a limiting step 331 for preventing the bearing 2 from dislodging. The portion of the bearing mounting base 33 near the limiting step 331 is located within the clearance space 15.

[0089] When the bearing mounting base 33 has a multi-lobed structure with circumferentially spaced lobes, it has a certain deformation capacity, which facilitates the pressing of the bearing 2. In addition, a limiting step 331 is provided at the end, which can be used to limit the bearing 2 axially and prevent the bearing 2 from falling out of the bearing mounting base 33 during use.

[0090] When the bearing mounting seat 33 is located within the clearance space 15 near the limiting step 331, the clearance space 15 can be cleverly utilized to achieve a tight fit between the structures, thereby minimizing the thickness required for the floating hub cover.

[0091] In this embodiment, there can be two bearings 2. When there are two bearings 2, a reliable two-point support is formed, which can effectively limit radial / axial movement, has high coaxiality, is not easily affected by the counterweight structure 13, and can effectively prevent the bearing 2 from interfering with the base 3 and causing wear on the base 3, thus effectively extending the service life of the components.

[0092] Two bearings 2 can be axially abutted against each other on the rotating shaft 12, with each bearing 2 occupying an axial dimension of approximately 5mm. Of course, the axial dimension occupied by the bearing 2 will change accordingly when different types of bearings are selected.

[0093] The base 3 is typically made of PA6+GF15 (nylon with glass fiber reinforcement), and it can be integrally injection molded. However, the materials and processing methods for the base 3 are not limited to the examples mentioned above.

[0094] In one embodiment, at the middle of the base 3, corresponding to the bearing mounting seat 33, a protrusion 34 is formed from the outer surface 31 of the base to the inner surface 32 of the base. A snap-fit ​​portion 35 is provided on the periphery of the inner surface 32 of the base. Along the axial direction of the rotating shaft 12, the protrusion 34 does not exceed the snap-fit ​​portion 35.

[0095] In this embodiment, the base 3 has a snap-fit ​​portion 35 for assembly on its periphery. Specifically, the snap-fit ​​portion 35 can be in the form of a snap tooth, which is mainly used to snap the wheel hub to prevent the floating hub cover from falling off.

[0096] The base 3 may have a protrusion 34 in the middle, which enhances the structural strength of the middle part of the base 3 and forms a uniform force distribution with the snap-fit ​​parts 35 on the periphery. The protrusion 34 does not exceed the snap-fit ​​parts 35, which optimizes the installation performance and ensures that the thickness of the floating wheel hub cover is not increased.

[0097] In one embodiment, the floating hub cover further includes a retaining spring 5, and the number of retaining parts 35 is multiple, with the multiple retaining parts 35 arranged at intervals along the circumference. The inner side of each retaining part 35 is provided with a retaining groove 351, and the retaining spring 5 is disposed in the retaining groove 351.

[0098] In this embodiment, there can be multiple snap-fit ​​portions 35, and these multiple snap-fit ​​portions 35 can be spaced apart along the circumferential direction of the base 3. For example, as... Figure 10 As shown, the snap-fit ​​part 35 may include four sets of snap-fit ​​teeth, and each set of snap-fit ​​teeth may include two snap-fit ​​teeth spaced apart. Of course, the specific form of the snap-fit ​​part 35 is not limited to the example above, and this application does not make specific limitations here. The snap-fit ​​teeth have a certain degree of elasticity, which facilitates the quick installation and firm fixation of the base 3 in the center holes 30 of different sizes, improving assembly efficiency and adaptability.

[0099] The inner side of the snap-fit ​​part 35 is provided with a snap-fit ​​groove 351, and the snap-fit ​​spring 5 is disposed in the snap-fit ​​groove 351. By providing the snap-fit ​​spring 5 in the snap-fit ​​groove 351, the snap-fit ​​spring 5 can generate a continuous elastic preload force, which can fill the tiny gap between the snap-fit ​​part 35 and the center hole of the wheel hub, preventing the base 3 from moving due to vibration; at the same time, the snap-fit ​​spring 5 is easy to install and remove without special tools, and the base 3 can be removed by simply compressing the snap-fit ​​spring 5 during later maintenance, improving operational efficiency.

[0100] In one embodiment, the base 3 has a central hole 30 for the rotating shaft 12 to pass through, and the other end of the rotating shaft 12 does not extend beyond the base 3 along the axial direction of the rotating shaft 12.

[0101] In this embodiment, the rotating shaft 12 does not protrude from the base 3, which can reduce the overall axial space occupied by the floating wheel hub cover, ensure that the thickness of the floating wheel hub cover is not increased, and ensure its universality of installation.

[0102] In one embodiment, a first limiting part is provided at one end of the rotating shaft 12 that is connected to the cover 11, and the floating hub cover further includes a second limiting part, which is provided at the other end of the rotating shaft 12. The first limiting part and the second limiting part cooperate to limit the bearing 2.

[0103] In this embodiment, by setting a first limiting part and a second limiting part, the first limiting part cooperates with the second limiting part to constrain the bearing 2, preventing the inner ring of the bearing 2 from sliding relative to the rotating shaft 12 when the vehicle is vibrating, ensuring that the rotation of the cover assembly 1 is synchronized with the bearing 2, avoiding rotation jamming and abnormal noise caused by sliding, and improving the stability of the suspension effect.

[0104] The first limiting part may include a limiting platform 1120 formed at one end of the rotating shaft 12, and the limiting platform 1120 is integrally formed with the cover 11, the rotating shaft 12 and the counterweight structure 13.

[0105] When the limiting platform 1120 is integrally formed with the cover 11, the rotating shaft 12, and the counterweight structure 13, no subsequent welding or bonding is required, and the number of parts is reduced (eliminating the independent limiting platform and connecting parts), which simplifies the production process and reduces costs. At the same time, the integral forming eliminates the connection gap, which is conducive to reducing the axial dimension and also improves the strength. The limiting platform 1120 can withstand long-term vibration without breaking or falling off.

[0106] In addition, the integrally formed limiting platform 1120 helps to control the coaxiality error with the rotating shaft 12, can accurately fit the end face of the bearing 2, ensure stable limiting effect, and avoid uneven force on the bearing 2 and abnormal rotation noise caused by coaxiality error.

[0107] The second limiting part may include a stop plate 4, and the other end of the rotating shaft 12 is provided with a stop groove 121 for cooperating with the stop plate 4.

[0108] In this embodiment, the second limiting part may include a stop plate 4. By setting the stop plate 4, which cooperates with the structure of the stop groove 121, the limiting can be completed by simply snapping the stop plate 4 into the stop groove 121 during installation, without the need for special tools, which helps to improve assembly efficiency; when replacing the bearing 2 in the later maintenance, the stop plate 4 can be removed for disassembly, which is simple to operate and reduces after-sales costs.

[0109] The stop groove 121 axially positions the stop plate 4, preventing it from shifting with the rotating shaft 12 and ensuring continuous positioning. The stop plate 4 can be made of spring steel, possessing a certain degree of elasticity to withstand slight vibrations and avoid damage to the stop plate 4 or bearing 2 caused by rigid positioning, thus improving structural adaptability. Alternatively, the stop plate 4 can be made of stainless steel; of course, other materials can also be used, and this application does not impose specific limitations. The thickness of the stop plate 4 can be greater than 0.5mm, for example, 0.7mm or 0.8mm, to ensure sufficient strength for axial positioning of the bearing 2. The groove width of the stop groove 121 can be adapted to the thickness of the stop plate 4; the groove width can be the same as or slightly larger than the thickness of the stop plate 4.

[0110] Furthermore, by providing a stop piece 4 in the stop slot 121, the thickness of the floating hub cover is not increased. Specifically, as... Figure 3 As shown, since the stop plate 4 is located in the stop groove 121 and installed around the rotating shaft 12, and the rotating shaft 12 does not exceed the base 3 in the axial direction, the stop plate 4 will not exceed the base 3.

[0111] It should be noted that the form of the second limiting part is not limited to the examples described above. For instance, the other end of the rotating shaft 12 may itself form a limiting structure for the bearing 2; or, the second limiting part may be in the form of a nut, and correspondingly, the rotating shaft 12 may be provided with threads adapted to the nut. Of course, the specific form of the second limiting part may also be other forms, and is not limited to the above description. Those skilled in the art may make other modifications based on the technical essence of this application, but as long as the function and effect achieved are the same as or similar to those of this application, they should all be covered within the scope of protection of this application.

[0112] Furthermore, a shaft end guide structure is formed at the other end of the rotating shaft 12 on the side of the stop groove 121 away from the cover 11, and the minimum thickness of the shaft end guide structure along the axial direction of the rotating shaft 12 is 1 mm.

[0113] Along the axial direction of the rotating shaft 12, the distance between the end of the bearing mounting seat 33 and the inner surface of the top wall 113 is less than 1 mm. Since the end of the bearing mounting seat 33 extends into the clearance space 15, the distance between the end of the bearing mounting seat 33 and the inner surface of the top wall 113 can be set to a small gap.

[0114] Overall, the other end of the rotating shaft 12 and the base 3 can be flush or nearly flush on the side near the envelope surface of the central hole 30. The total thickness of the floating hub cover may include: shaft end guide structure + stop plate 4 + two bearings 2 + gap between bearing 2 and cover 11 + thickness of cover 11. The total thickness of the floating hub cover is approximately 14mm to 17mm.

[0115] like Figure 8 As shown, in one embodiment, the ratio of the total thickness H1 of the cover 11 and the counterweight structure 13 to the total thickness H2 of the cover assembly 1 is between 25% and 43% along the axial direction of the rotating shaft 12.

[0116] In this embodiment, the material of the cover 11 may include stainless steel, aluminum alloy, magnesium alloy, etc. Different materials for the cover 11 have different properties, including significant differences in density and strength. Depending on the material of the cover 11 and whether the cover 11 and the car logo decorative cover 14 are integrally formed, the wall thickness of the cover 11 will vary. Specifically, the minimum wall thickness of the cover 11 can be between 1mm and 1.5mm.

[0117] Specifically, the wall thickness of the cover 11 refers to the minimum wall thickness of the non-counterweight area without the counterweight structure 13. For the counterweight area with the counterweight structure 13, the thickness is approximately between 4mm and 6mm, for example, around 5mm. The core function of the counterweight structure 13 is to adjust the center of gravity of the car logo through local weight shift. The thickness range of 4mm-6mm (taking 5mm as an example) can achieve a balance between weight controllability and center of gravity shift accuracy within a limited volume. The floating wheel hub cover needs to withstand the centrifugal force generated by the high-speed rotation of the wheel and the high-frequency vibration caused by road bumps. The thickness range of 4mm-6mm can take into account both deformation resistance and lightweight requirements.

[0118] Taking the total thickness H2 of the cover assembly 1 as approximately 14mm to 17mm, and the total thickness H1 of the cover 11 and the counterweight structure 13 as 4mm to 6mm, the ratio of the total thickness H1 of the cover 11 and the counterweight structure 13 to the total thickness H2 of the cover assembly 1 is between 25% and 43%.

[0119] When the ratio of the total thickness H1 of the cover 11 and the counterweight structure 13 to the total thickness H2 of the cover assembly 1 is between 25% and 43%, the dimensional requirements and corresponding functional requirements of the aforementioned components can be met. Furthermore, for the dual-bearing structure, the suspended hub cover needs to control the center of gravity in the axial direction to ensure a stable torque with the support points of the dual bearings. A ratio of 25%-43% can accurately position the center of gravity and reduce axial movement during high-speed rotation. Moreover, when the ratio of the total thickness H1 of the cover 11 and the counterweight structure 13 to the total thickness H2 of the cover assembly 1 is between 25% and 43%, combined with the high-frequency vibration damping capability of the dual bearings, the thickness combination of the cover 11 and the counterweight structure 13 can supplement low-frequency vibration damping, forming full-frequency protection, thereby enhancing the full-frequency vibration damping effect.

[0120] This application also provides a wheel, which may include a hub, the hub being provided with a central hole 30 having a predetermined depth, a suspended hub cover as described in the above embodiments being mounted on the hub, a base 3 being installed in the central hole 30, the base 3 being relatively stationary with respect to the hub, and the cover assembly 1 being rotatably connected to the base 3 via a bearing 2.

[0121] In this embodiment of the application, the wheel can achieve the technical effect of the floating hub cover embodiment by setting the floating hub cover. For details, please refer to the specific description of the above embodiment, which will not be repeated here.

[0122] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0123] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0124] The above are merely a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as described above, the content is only for the purpose of facilitating understanding of the present invention and is not intended to limit the present invention. Any person skilled in the art to which this invention pertains may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in the present invention. However, the patent protection scope of the present invention shall still be determined by the scope defined in the appended claims.

Claims

1. A floating hub cover, characterized in that, The floating hubcap includes: A base and a cover assembly, the cover assembly being rotatably connected to the base, the cover assembly including at least a cover, a pivot, and a counterweight structure, the cover including a top wall and a side wall surrounding the top wall, the inner surface of the top wall and the inner circumferential surface of the side wall forming an accommodating space, the counterweight structure being disposed in the accommodating space and offset from the pivot, the counterweight structure not protruding from the end face of the side wall away from the top wall along the axial direction of the pivot, the maximum dimension of the counterweight structure along the radial direction of the pivot being 6-15 times its maximum dimension along the axial direction of the pivot.

2. The floating hub cover as described in claim 1, characterized in that, The inner surface of the top wall is spherical.

3. The floating hub cover as described in claim 2, characterized in that, The counterweight structure has a flat surface at one end away from the top wall, and this flat surface is flush with the side wall at one end away from the top wall.

4. The floating hub cover as described in claim 2, characterized in that, The counterweight structure has an upper side and a lower side, with an clearance space between the upper side and the pivot for mounting the base, and the lower side in contact with the side wall.

5. The floating hub cover as described in claim 1, characterized in that, The weight of the counterweight structure accounts for more than 30% of the weight of the cover assembly.

6. The floating hub cover as described in claim 1, characterized in that, The counterweight structure is fan-shaped, and the central angle of the fan-shaped structure does not exceed 180°.

7. The floating hub cover as described in claim 1, characterized in that, Along the axial direction of the pivot, the ratio of the total thickness of the cover and the counterweight structure to the total thickness of the cover assembly is between 25% and 43%.

8. The floating hub cover as described in claim 7, characterized in that, The wall thickness of the cover is 1mm-1.5mm.

9. The suspended hub cover as described in claim 1, characterized in that, The cover and the rotating shaft are integrally formed.

10. The floating hub cover as described in claim 1, characterized in that, The outer surface of the cover is provided with a car logo decorative structure; or... The cover assembly also includes a car logo decorative cover, on which the car logo decorative structure is provided, and the car logo decorative cover is installed on the outer surface of the cover.

11. The floating hub cover as described in claim 1, characterized in that, The suspended hub cover also includes a bearing, the base is installed in the center hole of the hub, and the cover assembly is rotatably connected to the base via the bearing.

12. The floating hub cover as described in claim 11, characterized in that, The counterweight structure has an upper side and a lower side, and a clearance space is formed between the upper side and the pivot. The outer surface of the base is provided with a bearing mounting seat for mounting the bearing, and part of the bearing mounting seat and the bearing are located within the clearance space.

13. The floating hub cover as described in claim 12, characterized in that, The bearing mounting base includes a plurality of lobes spaced apart along the circumference. Each lobe has a root that connects to the inner surface of the cover and an end opposite to the root. The end is provided with a limiting step to prevent the bearing from dislodging. The portion of the bearing mounting base near the limiting step is located within the clearance space.

14. The floating hub cover as described in claim 12, characterized in that, Along the axial direction of the rotating shaft, the distance between the end of the bearing mounting seat and the inner surface of the top wall is less than or equal to 1 mm.

15. The floating hub cover as described in claim 12, characterized in that, At the center of the base, corresponding to the bearing mounting seat, a protrusion is formed from the outer surface of the base to the inner surface of the base. A snap-fit ​​portion is provided on the periphery of the inner surface of the base. Along the axial direction of the rotating shaft, the protrusion does not exceed the snap-fit ​​portion.

16. The suspended hub cover as described in claim 12 or 15, characterized in that, The base has a central hole for the rotating shaft to pass through, and the other end of the rotating shaft does not extend beyond the base along the axial direction of the rotating shaft.

17. A wheel, comprising a hub, the hub having a central hole having a predetermined depth, characterized in that, The hub is fitted with a floating hub cover as described in any one of claims 1-16, the base is installed in the central hole, and the cover assembly is rotatably connected to the base via a bearing.

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