Hub suspension cover assembly and suspension hub cover

Abstract

The application discloses a wheel hub suspension cover assembly and a suspension wheel hub cover, and relates to the technical field of automobile accessories, wherein the wheel hub suspension cover assembly comprises a wheel hub and a suspension wheel hub cover, the suspension wheel hub cover comprises a base provided with a groove, a power generation assembly comprising a rotatable rotor assembly and a stator assembly, and a suspension assembly comprising a suspension support base, a light-emitting assembly and a surface cover, at least part of the suspension support base is arranged in the groove, the surface cover is connected with the suspension support base and defines a containing cavity together, the light-emitting assembly is arranged in the containing cavity, the power generation assembly and the light-emitting assembly are electrically connected, and the suspension support base is connected with the stator assembly; the projection areas of the wheel hub, the base and the surface cover on the vertical plane of the rotation axis are S1, S2 and S3 respectively, and the following conditions are met: 0.234<=<=1 and 0.231<=<=0.998. The application solves the problem of poor display effect of the wheel hub suspension cover assembly in the prior art.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and in particular to a wheel hub suspension cover assembly and a floating wheel hub cover. Background Technology

[0002] A wheel hub floating cover is a decorative piece installed on a car wheel hub. It keeps the wheel hub relatively stationary while the hub rotates, ensuring the car logo is always displayed facing forward, thus enhancing the vehicle's visual appeal and brand recognition. However, existing wheel hub floating covers are limited to the groove at the center of the wheel hub, and their size is constrained by the space of the central hole, resulting in a small luminous area and insufficient visual impact. Summary of the Invention

[0003] The main objective of this invention is to propose a wheel hub suspension cover assembly and a floating wheel hub cover, in order to solve the problem of poor display effect of existing wheel hub suspension cover assemblies.

[0004] To achieve the above objectives, the present invention proposes a wheel hub suspension cover assembly, comprising a wheel hub and a suspension wheel hub cover, wherein the wheel hub has a fixing groove, and the suspension wheel hub cover comprises: A base, at least partially installed in a fixing groove, wherein the base is provided with a groove; A power generation assembly, including a rotor assembly and a stator assembly that can rotate relative to each other, wherein at least a portion of the rotor assembly is disposed within the groove; A suspension assembly includes a suspension support, a light-emitting component, and a cover. At least a portion of the suspension support is disposed within the groove. The cover is connected to the suspension support and together defines a receiving cavity. The light-emitting component is disposed within the receiving cavity. The power-generating component and the light-emitting component are electrically connected. The suspension support is connected to the stator assembly so that the base is rotatably disposed relative to the suspension assembly. The projected area of ​​the hub on the plane perpendicular to its rotation axis is S1, the projected area of ​​the base on the plane perpendicular to the axis of the rotor assembly is S2, and the projected area of ​​the cover on the plane perpendicular to the axis of the rotor assembly is S3, satisfying: 0.234 ≤ ≤1, 0.231≤ ≤0.998.

[0005] In one embodiment, the wheel hub has an axial mounting groove on the side facing the floating wheel hub cover, the bottom wall of the axial mounting groove is provided with the fixing groove, the base is disposed in the axial mounting groove, and the equivalent diameter of the outer contour of the base is D1, which satisfies: D1≥220mm.

[0006] In one embodiment, the levitation assembly further includes a battery disposed within the receiving cavity. When the base rotates relative to the levitation assembly, the battery is positioned on the lower half of the levitation assembly. The battery is configured to maintain the center of gravity of the levitation assembly below the rotation axis of the rotor assembly. The weight of the levitation assembly is W1, the weight of the battery is W2, and the weight of the lower half of the levitation assembly is W3, satisfying 0.15. 0.5, 0.575 0.75.

[0007] In one embodiment, the suspension support is provided with at least one vent hole, the vent hole connecting the receiving cavity and the groove; the vent hole is provided with a breathable membrane, the breathable membrane being configured to allow gas to pass through to balance the pressure difference between the receiving cavity and the groove, and to prevent liquid water from entering the receiving cavity from the groove.

[0008] In one embodiment, the base includes an integrally formed fixing part and a flared part. The groove includes a first mounting groove and a second mounting groove, which are connected. The first mounting groove is located in the fixing part, and the second mounting groove is located in the flared part. The opening area of ​​the second mounting groove on the side away from the first mounting groove is gradually widened.

[0009] In one embodiment, the suspension component is at least partially disposed within the second mounting groove, and there is a gap L between the outer peripheral wall of the suspension component and the groove wall of the second mounting groove, satisfying: 0.2mm≤L≤2.5mm.

[0010] In one embodiment, the cover includes a first cover portion and a second cover portion, the second cover portion being disposed radially outside the first cover portion along the rotor assembly; at least one of the first cover portion and the second cover portion is used to transmit light to display a first pattern, and the other is used to display a second pattern; the projected area of ​​the first cover portion on the plane perpendicular to the axis of the rotor assembly is S4, and the projected area of ​​the second cover portion on the plane perpendicular to the axis of the rotor assembly is S5, wherein S4 and S5 satisfy: 0.30 ≤ ≤0.60; the cover is an integral structure; or, the cover is a split structure, and the first cover part and the second cover part are sealed together.

[0011] In one embodiment, the light-emitting component includes a circuit board assembly and a light-emitting element, the light-emitting element being electrically connected to the circuit board assembly; the suspension support is provided with a wire-passing hole, through which the battery cable passes and is electrically connected to the power generation component, and a sealing element is provided in the wire-passing hole for sealing the wire-passing hole.

[0012] In one embodiment, the faceplate has at least one partition rib on the side facing the base, the partition rib being located at the connection between the first cover and the second cover; the light-emitting component includes a first LED group and a second LED group, the projection of the first LED group along the axial direction of the rotor assembly falling on the first cover, and the projection of the second LED group along the axial direction of the rotor assembly falling on the second cover; the partition rib is used to separate the first LED group and the second LED group.

[0013] This application also proposes a floating hubcap for mounting on a vehicle hub, comprising: The base is detachably mounted on the hub, and the base has a groove. A power generation assembly, including a rotor assembly and a stator assembly that can rotate relative to each other, wherein at least a portion of the rotor assembly is disposed within the groove; A suspension assembly includes a suspension support, a light-emitting component, and a cover. At least a portion of the suspension support is disposed within the groove. The cover is connected to the suspension support and together defines a receiving cavity. The light-emitting component is disposed within the receiving cavity. The power-generating component is electrically connected to the light-emitting component. The suspension support is connected to the stator assembly so that the base is rotatably disposed relative to the suspension assembly. The projected area of ​​the hub on the plane perpendicular to its rotation axis is S1, the projected area of ​​the base on the plane perpendicular to the axis of the rotor assembly is S2, and the projected area of ​​the cover on the plane perpendicular to the axis of the rotor assembly is S3, satisfying: 0.234 ≤ ≤1, 0.231≤ ≤0.998.

[0014] The wheel hub floating cover assembly of this application sets the ratio of the projected area S3 of the cover to the projected area S1 of the wheel hub to satisfy 0.231≤S3 / S1≤0.998, enabling the cover to cover most of the wheel hub surface. This solves the technical bottleneck of existing wheel hub floating covers, which suffer from small luminous area and insufficient visual impact due to limitations in the size of the wheel hub's center hole. It achieves a large-area floating luminous effect, effectively enhancing the vehicle's brand recognition and aesthetic appeal. Based on the aforementioned area ratio, the large floating luminous area can transmit clearer and more conspicuous side light signals to pedestrians and other vehicles during vehicle operation, thus providing a more effective safety warning and reducing the risk of traffic accidents at night or in low visibility conditions. Furthermore, by setting the ratio of the projected area S2 of the base to the projected area S1 of the hub to satisfy 0.234≤S2 / S1≤1, the base can occupy the main area of ​​the hub surface, thereby providing ample installation space for the power generation component and the suspension component, avoiding component interference or counterweight difficulties caused by limited space. At the same time, this setting improves the structural stability of the suspension component when rotating at high speed and enhances the reliability of the suspension attitude. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of one embodiment of the wheel hub suspension cover assembly provided by the present invention; Figure 2 for Figure 1 A partial structural diagram of one embodiment; Figure 3 for Figure 2 A schematic diagram of the bottom structure; Figure 4 for Figure 2 Exploded view of part of the structure; Figure 5 for Figure 4 Exploded view of part of the structure; Figure 6 for Figure 1 Partial structural explosion diagram; Figure 7 This is a schematic diagram of another embodiment of the present invention; Figure 8 for Figure 7 A schematic diagram of the bottom structure; Figure 9 for Figure 7 A schematic diagram of the cross-sectional structure; Figure 10 for Figure 9 Exploded view of part of the structure.

[0017] Explanation of icon numbers: 11. Fixing groove; 12. Annular concave part; 100. Base; 101. Groove; 110. Fixing part; 120. Flared part; 130. Connecting part; 140. First mounting groove; 150. Second mounting groove; 160. Water-blocking part; 200. Power generation component; 300. Suspension component; 310. Suspension support; 311. Wiring hole; 312. Vent hole; 320. Battery; 330. Light-emitting component; 340. Cover; 341. First cover; 342. Second cover; 343. Third cover; 344. Separating rib.

[0018] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] Please see Figures 1 to 4 as well as Figure 6 In one embodiment of the present invention, a wheel hub suspension cover assembly is provided. The wheel hub suspension cover assembly includes a wheel hub and a suspended wheel hub cover. The wheel hub has a fixing groove 11. The suspended wheel hub cover includes: a base 100, a power generation component 200, and a suspension component 300. The base 100 is at least partially installed in the fixing groove 11, and the base 100 has a groove 101. The power generation component 200 includes a rotor component and a stator component that can rotate relative to each other. At least a portion of the rotor component is disposed in the groove 101. The suspension component 300 includes a suspension support 310, a light-emitting component 330, and a faceplate 340. At least a portion of the suspension support 310 is disposed in the groove 101. The faceplate 340 is connected to the suspension support 310 and together defines a receiving cavity. The light-emitting component 330 is disposed in the receiving cavity. The power generation component 200 and the light-emitting component 330 are electrically connected. The suspension support 310 is connected to the stator component, so that the base 100 is rotatably disposed relative to the suspension component 300. The projected area of ​​the hub on the plane perpendicular to its rotation axis is S1, the projected area of ​​the base 100 on the plane perpendicular to the axis of the rotor assembly is S2, and the projected area of ​​the cover 340 on the plane perpendicular to the axis of the rotor assembly is S3, satisfying: 0.234 ≤ ≤1, 0.231≤ ≤0.998.

[0023] The wheel hub is used to mount the tire and bear the vehicle load. In this embodiment, the wheel hub has a fixing groove 11, which is preferably a circular recessed structure, opened in the central area of ​​the wheel hub, for accommodating and fixing at least a portion of the floating wheel hub cover.

[0024] In this embodiment, the main body of the base 100 is embedded in the fixing groove 11 and is fixedly connected to the hub by means of buckle, thread or interference fit, so that it can rotate synchronously with the hub. The base 100 is provided with a groove 101, which is used to accommodate at least part of the power generation component 200. The groove 101 can be a circular countersunk hole, and its inner diameter matches the size of the component to be accommodated.

[0025] In this embodiment, the rotor assembly is fixedly connected to the base 100 and rotates together with the base 100; the stator assembly is connected to the suspension assembly 300 and does not rotate with the base 100. When the hub drives the base 100 and the rotor assembly to rotate, relative motion occurs between the rotor assembly and the stator assembly, thereby generating electrical energy through the principle of electromagnetic induction. In this embodiment, the power generation assembly 200 can be selected as a radial flux generator or an axial flux generator, the specific structure of which is well known to those skilled in the art and will not be described in detail here.

[0026] In this embodiment, at least a portion of the suspension support 310 is disposed within the groove 101. The suspension support 310 is preferably a disc-shaped or annular structure, with its central region connected to the stator assembly of the power generation component 200, allowing the suspension support 310 to rotate freely relative to the base 100. A counterweight structure can be provided below the suspension support 310, so that the center of gravity of the suspension component 300 is located below the axis of rotation, thereby using gravity to keep the suspension component 300 basically stationary relative to the ground.

[0027] The cover 340 is connected to the suspension support 310 and together define a receiving cavity; wherein, the cover 340 is preferably made of a transparent or translucent material so that light can pass through.

[0028] In this embodiment, since the suspension support 310 is connected to the stator assembly of the power generation component 200, and the stator assembly has inertial damping relative to the rotating rotor assembly, and combined with the counterweight design of the suspension support 310 and the light-emitting component 330, when the base 100 rotates with the hub, the center of gravity of the suspension component 300 is located below the axis of rotation, and the suspension component 300 remains relatively stationary. In this way, the pattern or car logo on the cover 340 is always in a positive display state.

[0029] In this embodiment, S1, S2, and S3 satisfy: 0.234 ≤ ≤1, 0.231≤ ≤0.998. In a specific example, the diameter of the vehicle wheel hub is 18 inches, or approximately 457.2 mm, and its projected area S1 corresponds to a circle area of ​​approximately 1642 cm². In this example, to meet the area ratio range of this technical solution, for S2 / S1, the projected diameter of the base 100 must be greater than or equal to 221.2 mm; for S3 / S1, the projected diameter of the cover 340 must be greater than or equal to 219.8 mm. Simultaneously, satisfying S2 / S1≤1 and S3 / S1≤0.998 corresponds to the projected diameter of the base 100 being less than or equal to 457.2 mm and the projected diameter of the cover 340 being less than or equal to 456.8 mm, respectively; that is, neither the base 100 nor the cover 340 should extend beyond the outer edge of the wheel hub.

[0030] Therefore, on an 18-inch wheel, this technical solution allows for a minimum diameter of approximately 221 mm for the base 100 and approximately 220 mm for the cover 340. At this point, the area ratios are: S2 / S1≈(221 / 457.2)²≈0.234; S3 / S1≈(220 / 457.2)²≈0.231; these minimum values ​​precisely satisfy S2 / S1≥0.234 and S3 / S1≥0.231. If the diameters of the base 100 and cover 340 are further increased, the area ratios will increase accordingly, producing a more pronounced visual effect.

[0031] For a 20-inch wheel, with a diameter of approximately 508 mm, to meet the same minimum area ratio, the base 100 needs a diameter of approximately 508 × 0.4837 ≈ 246 mm, and the cover 340 needs a diameter of approximately 508 × 0.4806 ≈ 244 mm. Understandably, as the wheel size increases, the minimum diameters of the base 100 and cover 340 required in this design also increase accordingly to ensure that the floating light-emitting area occupies a sufficient proportion of the wheel.

[0032] With the above-mentioned size design, the diameter of the faceplate 340 can reach 220 mm or more, far exceeding the light-emitting area of ​​about 121 mm in the existing technology, thus achieving a large-area floating light-emitting effect.

[0033] During operation, the hub drives the base 100 and rotor assembly to rotate, the power generation component 200 generates electrical energy and supplies it to the light-emitting component 330, the light-emitting component 330 lights up, and the light shines outward through the cover 340; since the suspension component 300 is stationary relative to the ground, the pattern on the cover 340 always remains facing forward, and the large area of ​​the cover 340 covers most of the hub, creating a strong visual impact.

[0034] For example, the values ​​of S2 / S1 can be: 0.234, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.30, 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, 0.40, 0.41, 0.42, 0.43, 0.44, 0.45, 0.46, 0.47, 0.48, 0.49, 0.50, 0.51, 0.52, 0.53, 0.54, 0.55, 0.56, 0.57, 0.58, 0.59. 0.60, 0.61, 0.62, 0.63, 0.64, 0.65, 0.66, 0.67, 0.68, 0.69, 0.70, 0.71, 0.72, 0.73, 0.74, 0.75, 0.76, 0.77, 0.78, 0.79, 0.80, 0.81, 0.82, 0.83, 0.84, 0.85, 0.86, 0.87, 0.88, 0.89, 0.90, 0.91, 0.92, 0.93, 0.94, 0.95, 0.96, 0.97, 0.98, 0.99, 1.00. Of course, S2 / S1 can also take any value between the above adjacent values.

[0035] For example, the values ​​of S3 / S1 can be: 0.231, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.30, 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, 0.40, 0.41, 0.42, 0.43, 0.44, 0.45, 0.46, 0.47, 0.48, 0.49, 0.50, 0.51, 0.52, 0.53, 0.54, 0.55, 0.56, 0.57, 0.58, 0.5 9, 0.60, 0.61, 0.62, 0.63, 0.64, 0.65, 0.66, 0.67, 0.68, 0.69, 0.70, 0.71, 0.72, 0.73, 0.74, 0.75, 0.76, 0.77, 0.78, 0.79, 0.80, 0.81, 0.82, 0.83, 0.84, 0.85, 0.86, 0.87, 0.88, 0.89, 0.90, 0.91, 0.92, 0.93, 0.94, 0.95, 0.96, 0.97, 0.98, 0.998. Similarly, S3 / S1 can also take any value between the above adjacent values.

[0036] In one implementation, see Figure 6The wheel hub has an annular concave portion 12 on the side facing the floating wheel hub cover. The annular concave portion 12 can be a circular countersunk hole or a stepped concave structure formed by recessing from the outer side of the wheel hub towards the inner side, with its axis coinciding with the rotation axis of the wheel hub. The depth of the annular concave portion 12 can be designed according to the thickness of the base 100 and the suspension component 300, typically ranging from 5 mm to 30 mm. A fixing groove 11 is provided on the bottom wall of the annular concave portion 12. The fixing groove 11 is a circular groove further recessed inward from the center of the annular concave portion 12. The fixing groove 11 is used to cooperate with the base 100 to stably fix the base 100 to the wheel hub, preventing the base 100 from loosening or falling off when the wheel hub rotates. The base 100 is disposed within the annular concave surface 12, that is, the main body of the base 100 is accommodated within the space defined by the annular concave surface 12. The side of the base 100 facing the hub is in contact with or adjacent to the bottom wall of the annular concave surface 12, and the side of the base 100 facing the suspension component 300 may be flush with or slightly concave to the outer side of the hub.

[0037] It should be noted that a typical passenger car wheel hub usually includes a rim, multiple spokes connecting the rim to the center of the hub, and a mounting groove 11 located at the hub's axle. This mounting groove 11 is typically used to install a hub cover displaying the vehicle logo. To save costs, the outer side of the mounting groove 11 usually has an annular concave portion 12 formed radially. This annular concave portion 12 extends radially outward from the outer edge of the mounting groove 11 to the root of the spokes, and it has multiple through-hole structures. However, the through-hole structure of this annular concave portion 12 creates air leakage areas during driving, generating wind noise and affecting the driving experience.

[0038] In this embodiment, in order to ensure that the base 100 can provide sufficient installation space for the levitation component 300 and meet the requirement of large-area levitation light emission, the equivalent diameter of the outer contour of the base 100 is D1, and D1 satisfies: D1≥220mm.

[0039] It is worth noting that the equivalent diameter refers to the diameter of a circle with the same area as the outer contour of the base 100. When the outer contour of the base 100 is not circular, such as rectangular, elliptical, or irregular, the projected area of ​​the base 100 on the plane perpendicular to the axis of the rotor assembly is equal to the projected area of ​​a circular base 100 with a diameter of D1. This scheme uses the equivalent diameter to facilitate the uniform measurement of its overall size. In this scheme, the outer contour of the base 100 can be circular, approximately circular, rectangular, elliptical, irregular, etc., and the specific shape is not limited here.

[0040] In this embodiment, by setting the diameter D1 of the base 100 to be no less than 220 mm, the base 100 can cover most of the area of ​​the center region of the hub, providing ample space for the power generation component 200, the suspension support 310, and the light-emitting component 330. Compared with the existing suspension hub cover where the diameter of the base 100 is usually only about 121 mm, this embodiment significantly enlarges the diameter of the base 100, thereby allowing the installation of a larger size power generation component 200 and a larger area light-emitting component 330 to achieve a large-area, high-brightness suspension light-emitting effect.

[0041] In this embodiment, the base 100 is installed in the annular concave part 12 and is fastened to the hub through the fixing groove 11. The inner diameter of the annular concave part 12 should be greater than or equal to the equivalent diameter of the outer contour of the base 100 to allow the base 100 to be installed smoothly. After the base 100 is installed, a small gap can be reserved between the outer peripheral wall of the base 100 and the side wall of the annular concave part 12 to facilitate assembly and avoid interference.

[0042] In one embodiment, the total weight of the levitation assembly 300 is W1, the weight of the battery 320 is W2, and the weight of the lower half of the levitation body excluding the battery 320 is W3. Then, the ratios W2 and W1 of the battery 320's weight to the total weight of the levitation assembly 300 satisfy 0.15. 0.5, meaning that the weight of battery 320 accounts for 15% to 50% of the total weight of the entire suspension assembly 300.

[0043] It should be noted that in this embodiment, if the weight of the battery 320 is less than 15% in the large-sized wheel hub suspension cover, the battery 320 will not be effective as a counterweight, and the center of gravity of the suspension component 300 may be too high, making it susceptible to deflection due to vibration or centrifugal force. If the weight of the battery 320 is more than 50%, the suspension component 300 will be too heavy, which will increase the burden on the power generation component 200 and may affect the dynamic balance of the wheel hub.

[0044] For example, the values ​​of W2 / W1 can be: 0.15, 0.18, 0.20, 0.22, 0.25, 0.28, 0.30, 0.32, 0.35, 0.38, 0.40, 0.42, 0.45, 0.48, 0.50; of course, they can also be any values ​​within the above range.

[0045] Meanwhile, the ratio of the sum of the weight of battery 320 and the weight of the lower half of the suspension body to the total weight of suspension assembly 300 satisfies: 0.575. 0.75, meaning that the total weight of the portion of the suspension assembly 300 located below the axis of rotation accounts for at least 57.5% of the total weight of the entire suspension assembly 300. This ensures that the center of gravity of the suspension assembly 300 is clearly located below the axis of rotation, forming a stable self-righting effect. When the wheel rotates at high speed, the suspension assembly 300 can always maintain its orientation by gravity, and will not experience the phenomenon of the suspended body rotating with the wheel hub.

[0046] For example, the value of (W2+W3) / W1 can be: 0.50, 0.52, 0.55, 0.58, 0.60, 0.62, 0.65, 0.68, 0.70, 0.72, 0.75, 0.78, 0.80; of course, it can also be any value within the above range.

[0047] In one alternative example, the total weight of the suspension component 300 is W1 = 700 grams, the battery 320 weighs W2 = 160 grams, and the lower half of the suspension body weighs W3 = 350 grams. In this case, the portion of the suspension component 300 located below the rotation axis weighs 510 grams, accounting for 72.9% of the total weight of the suspension component 300. Since more than half of the weight is concentrated below the rotation axis, and the battery 320, as the main counterweight, is located at the very bottom of the suspension body, the center of gravity of the entire suspension component 300 is significantly lowered to directly below the rotation axis, forming a stable, self-righting center of gravity configuration. When the vehicle is moving or the wheel hub and base 100 are rotating at high speed, the suspension component 300 tends to maintain its center of gravity at its lowest point under the influence of gravity. Any deflection torque generated by external vibrations or centrifugal force on the suspension component 300 is overcome by the larger gravitational torque of the lower half, causing the suspension component 300 to quickly return to its upright position, always maintaining the pattern or light on the faceplate 340 in a static posture relative to the ground. Meanwhile, the battery 320 accounts for 22.9% of the weight, which will not make the suspension component 300 too heavy and increase the burden on the power generation component 200, while providing sufficient counterweight torque and providing sufficient power reserve for the light-emitting component 330.

[0048] Furthermore, the suspension support 310 and / or the cover 340 are provided with a counterweight protrusion; the counterweight protrusion is located in the lower half of the suspension body, that is, in the area below the rotation axis of the suspension assembly 300.

[0049] It is understood that the counterweight protrusion can be one or more protruding structures, and its shape can be selected as arc-shaped ribs, fan-shaped blocks, columnar protrusions, or added metal sheets, etc. The counterweight protrusion can be integrally formed with the suspension support 310 or the cover 340, or it can be connected to the suspension support 310 or the cover 340 as an independent part by means of insert injection molding, snap-fit, or screw fixing.

[0050] Let the total weight of the levitation assembly 300 be W1, the weight of the battery 320 be W2, and the weight of the counterweight protrusion be W4. Then, the ratio of the sum of the weights of the battery 320 and the counterweight protrusion to the total weight of the levitation assembly 300 satisfies: 0.30 ≤ ≤0.60. That is, the total weight of the battery 320 and the counterweight protrusion accounts for 30% to 60% of the total weight of the entire suspension assembly 300.

[0051] For example, the value of (W2+W4) / W1 can be: 0.30, 0.32, 0.35, 0.38, 0.40, 0.42, 0.45, 0.48, 0.50, 0.52, 0.55, 0.58, 0.60, or any value within the above range.

[0052] By setting a counterweight protrusion, additional weight can be added when the weight of the battery 320 is insufficient to achieve the ideal weight distribution, ensuring that the weight ratio of the lower half of the suspension assembly 300 meets the requirement that the center of gravity is below the axis of rotation. Simultaneously, since the counterweight protrusion can be positioned at the bottom of the suspension support 310 or the cover 340, it can generate a greater gravitational force with a smaller weight, thereby more effectively lowering the center of gravity and preventing swaying.

[0053] Furthermore, in an optional embodiment, the counterweight protrusion is disposed on the outer edge of the lower half of the suspension support 310, extending in an arc shape along the circumference, with the central angle corresponding to the arc length being 90° to 180°. The counterweight protrusion and the suspension support 310 are integrally molded by two-color injection molding. The counterweight protrusion uses a material with a higher density than the substrate of the suspension support 310, thereby enabling the counterweight protrusion to provide sufficient weight in a smaller volume.

[0054] For example, the central angle can be: 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160°, 165°, 170°, 175°, 180°; of course, it can also be any value within the above range.

[0055] When the vehicle is in motion, the battery 320 and the counterweight protrusion ensure that the center of gravity of the suspension component 300 is stably located below the axis of rotation. Even under conditions of high-speed rotation or bumpy road surface, the suspension component 300 can still maintain its orientation by gravity and will not rotate with the wheel hub, thus achieving a stable and reliable suspension display effect.

[0056] In one implementation, see Figure 4The suspension support 310 is provided with at least one vent hole 312, the vent hole 312 connecting the receiving cavity and the groove 101; the vent hole 312 is provided with a breathable membrane, the breathable membrane being configured to allow gas to pass through to balance the pressure difference between the receiving cavity and the groove 101, and to prevent liquid water from entering the receiving cavity from the groove 101.

[0057] It should be noted that when the wheel hub suspension cover assembly is in operation, the light-emitting component 330 and the power-generating component 200 generate heat, causing the air temperature and pressure inside the containment cavity to rise. When the vehicle stops or enters a low-temperature environment, the air inside the containment cavity cools and contracts, creating negative pressure. As the temperature continues to change, the absorbed water vapor condenses into fog on the inner surface of the cover 340 or the surface of the light-emitting component 330, resulting in decreased light transmittance and blurred light effect. In severe cases, it may cause circuit corrosion or short circuit.

[0058] In this embodiment, one end of the vent 312 is connected to the receiving cavity, and the other end is connected to the groove 101 on the base 100. The groove 101 is indirectly connected to the external atmosphere through the assembly gap between the base 100 and the hub. Therefore, the vent 312 provides a channel for the gas in the receiving cavity to be discharged outward.

[0059] In this embodiment, the breathable membrane can be selected as an expanded polytetrafluoroethylene (ePTFE) microporous membrane. Since this type of membrane has billions of micropores with a diameter of about 0.2 micrometers to 10 micrometers, which is much larger than air molecules, air molecules can pass through the micropores freely. At the same time, the diameter of the micropores is much smaller than that of water droplets, and the material itself is hydrophobic, so liquid water cannot pass through the micropores into the containment cavity.

[0060] When the gas inside the containment cavity is heated and expands, increasing its pressure, it is discharged outward through the micropores of the breathable membrane, enters the groove 101, and then is discharged to the outside atmosphere through the gap between the base 100 and the hub. When the gas inside the containment cavity cools and contracts, decreasing its pressure, outside air enters the containment cavity through the same path to balance the pressure difference. The breathable membrane itself does not restrict the direction of gas flow, but allows gas to pass freely in both directions under the drive of pressure difference. Simultaneously, because the micropore size of the breathable membrane is much smaller than the diameter of a water droplet, and the membrane material is hydrophobic, even if there is water outside, liquid water cannot pass through the micropores into the containment cavity. During high-pressure washing or wading, water forms droplets on the membrane surface and slides off, without penetrating inward.

[0061] Further, see Figure 4 and Figure 5 The suspension support 310 is provided with four sets of ventilation holes 312 corresponding to the first mounting groove 140, and each set of ventilation holes 312 includes three ventilation holes 312.

[0062] For example, on the suspension support 310, four sets of vent holes 312 are evenly distributed around the central area. Three vent holes 312 in each set of vent holes 312 are arranged radially or in an arc shape, and the diameter of each hole is 1 mm. A circular expanded polytetrafluoroethylene breathable membrane with a diameter of 1.2 mm and a thickness of 0.2 mm is pressed into each vent hole 312.

[0063] When the vehicle is in motion, the light-emitting component 330 and the power-generating component 200 generate heat, causing the gas inside the cavity to expand and the pressure to increase. This pushes open the one-way breathable membrane, allowing hot air to escape. When the vehicle is parked and cooling down, the internal pressure decreases, and the one-way breathable membrane closes under the influence of external atmospheric pressure, preventing external humid air from entering. This cycle continues, keeping the cavity dry at all times, preventing fogging even in rainy weather or after a car wash.

[0064] In one embodiment, the output torque N of the power generation component 200 at a speed of 200-300 rpm satisfies: N≥0.5N·m.

[0065] It is worth noting that for 18-inch wheels, 235 rpm corresponds to a vehicle speed of approximately 30 km / h, which is a low-speed driving condition. At this speed, if the output torque of the power generation component 200 is less than 0.5 N·m, it cannot overcome the significant damping caused by the large-area suspension component 300, and it is also difficult to drive the high-power light-emitting component 330 to achieve uniform and stable light emission. Conversely, when N ≥ 0.5 N·m, the power generation component 200 can generate sufficient induced electromotive force and current to ensure that the light-emitting component 330 can obtain a stable power supply at various driving speeds, thereby achieving a continuous, flicker-free, large-area suspension light emission effect.

[0066] In this embodiment, the power generation component 200 can be an external rotor generator, an axial flux generator, etc., and its flat structure is suitable for installation within a hub suspension cover with limited thickness. By increasing the number of magnets, increasing the size of the magnets, increasing the number of coil turns, or using permanent magnet materials with high magnetic energy product, the torque output capability of the power generation component 200 can be improved. At the same time, appropriately increasing the air gap diameter between the generator stator and rotor also helps to improve the torque. Those skilled in the art can perform conventional electromagnetic design according to torque requirements and in combination with the limited space of the hub cover to obtain a power generation component 200 that satisfies N≥0.5N·m.

[0067] In a specific example, an external rotor generator with a rotor diameter of 60mm uses 12 arc-shaped neodymium magnets evenly distributed on the inner wall of the external rotor. The stator coil uses 0.5mm diameter copper wire, with 80 turns per phase. At a speed of 300rpm, the output torque can reach 0.55~0.65N·m. This allows it to provide sufficient power even at low speeds, ensuring stable brightness and lighting effects in the large-area suspended light-emitting area. It overcomes the shortcomings of existing technologies, such as insufficient power generation, flickering lights, or even light outages at low speeds.

[0068] In one implementation, see Figures 7 to 10 The base 100 includes an integrally formed fixing part 110 and a flared part 120. The groove 101 includes a first mounting groove 140 and a second mounting groove 150. The first mounting groove 140 and the second mounting groove 150 are connected. The first mounting groove 140 is located in the fixing part 110, and the second mounting groove 150 is located in the flared part 120. The opening area of ​​the second mounting groove 150 on the side away from the first mounting groove 140 is gradually widened.

[0069] It is understood that the fixing part 110 is the part of the base 100 that is directly connected to the fixing groove 11 of the hub. The outer contour of the fixing part 110 is usually cylindrical, and its outer diameter matches the inner diameter of the corresponding mounting hole on the hub. The outer peripheral wall of the fixing part 110 may be provided with a slot, thread or elastic claw to securely snap or screw the base 100 onto the hub.

[0070] The flared portion 120 is located on the side of the fixed portion 110 away from the hub and is integrally formed with the fixed portion 110. The outer diameter of the flared portion 120 is larger than the outer diameter of the fixed portion 110, so that the base 100 presents a flared cross-sectional profile. The flared portion 120 increases the support area of ​​the top of the base 100, providing a stable mounting base for the larger-sized suspension support 310 and the cover 340, and also helps to evenly transfer the weight of the suspension component 300 to the fixed portion 110.

[0071] The groove 101 includes a first mounting groove 140 and a second mounting groove 150, which are interconnected to form an integral cavity. The first mounting groove 140 is located inside the fixing part 110. In this embodiment, the first mounting groove 140 may be a circular countersunk hole, the axis of which coincides with the axis of the base 100. The first mounting groove 140 is used to accommodate part of the rotor assembly and stator assembly of the power generation component 200. Since the outer diameter of the fixing part 110 is relatively small, the inner diameter of the first mounting groove 140 is also correspondingly small in order to maintain the wall thickness of the fixing part 110 and ensure the connection strength.

[0072] The second mounting groove 150 is disposed inside the flared portion 120. The second mounting groove 150 communicates with the first mounting groove 140, and the inner diameter of the second mounting groove 150 is larger than the inner diameter of the first mounting groove 140. The second mounting groove 150 is used to accommodate the suspension support 310 of the suspension component 300 and part of the structure of the light-emitting component 330. Since the outer diameter of the flared portion 120 is large, the second mounting groove 150 can obtain a larger radial space, thereby allowing the diameter of the suspension support 310 to be much larger than the diameter of the first mounting groove 140.

[0073] In this embodiment, the sidewall of the second mounting groove 150 gradually slopes outward in a direction away from the first mounting groove 140, forming a conical or arc-shaped surface. This gradually expanding structure causes the opening area of ​​the second mounting groove 150 to gradually increase from the end near the first mounting groove 140 toward the cover 340. This provides a guiding function for the assembly of the suspension support 310. When the suspension assembly 300 is installed into the base 100, the gradually expanding sidewall can guide the suspension support 310 to smoothly enter the bottom of the second mounting groove 150, and allow the suspension support 310 to have a certain swing clearance within the second mounting groove 150, avoiding jamming caused by machining tolerances or small offsets during rotation, thereby ensuring that the suspension assembly 300 can rotate freely relative to the base 100.

[0074] For example, taking an 18-inch wheel hub as an example, the outer diameter of the fixing part 110 can be selected as 63mm, and the inner diameter of the first mounting groove 140 can be selected as 58mm to accommodate the power generation component 200. At this time, the outer diameter of the largest part of the flared part 120 is designed to be 300mm, and the diameter of the second mounting groove 150 near the end of the first mounting groove 140 is about 63mm, and the diameter of the second mounting groove 150 near the end of the faceplate 340 gradually expands to about 290mm, with a flaring angle of about 3°. In this way, the opening area of ​​the second mounting groove 150 gradually expands from about 26.4cm² to about 660cm², which is about 25 times larger, providing sufficient space for the large-diameter suspension support 310.

[0075] Further, see Figure 3 or Figure 8 The flared portion 120 has multiple connecting portions 130 on its periphery. Each connecting portion 130 can be a bolt hole, a snap-fit, or a threaded hole. Correspondingly, the hub has multiple connecting mating portions, which can be threaded holes, slots, or bolts. The connecting portions 130 and the connecting mating portions are detachably connected, thereby fixing the base 100 to the hub. In this embodiment, the connecting portion 130 is a through hole, and the connecting mating portion is a threaded hole. A screw is passed through the through hole and screwed into the threaded hole to lock the base 100 onto the hub.

[0076] In this embodiment, the flared portion 120 on the base 100 provides a larger opening area for the mounting groove, allowing for greater installation space for the suspension assembly 300 without increasing the size of the wheel hub fixing groove 11. Simultaneously, the outer surface of the flared portion 120 can fit against the concave side of the wheel hub, increasing the contact area between the floating wheel hub cap and the wheel hub, thus improving installation stability and vibration resistance during driving. The use of a detachable connecting portion 130 and a connecting mating portion structure avoids the problem of easy aging and breakage of traditional claw structures, ensuring convenient assembly and disassembly and reliable fixation.

[0077] Furthermore, the suspension component 300 is at least partially disposed within the second mounting groove 150, and there is a gap L between the outer peripheral wall of the suspension component 300 and the groove wall of the second mounting groove 150, satisfying: 0.2mm≤L≤2.5mm.

[0078] It is understandable that the outer contour of the suspension support 310 is adapted to the gradually expanding groove wall of the second mounting groove 150, that is, the outer peripheral wall of the suspension support 310 facing the base 100 is also gradually expanding, ensuring that the gap L between the suspension support 310 and the second mounting groove 150 remains uniform throughout the entire mating length, avoiding situations where the gap is too large or too small in some areas, thereby ensuring the stability of the suspension component 300 during the rotation of the base 100.

[0079] For example, in this embodiment, L=1.2mm is preferred to meet assembly requirements while also ensuring stability and protective performance.

[0080] If the gap L is less than 0.2mm, the fit between the suspension component 300 and the second mounting groove 150 will be too tight, increasing the assembly difficulty. Furthermore, due to thermal expansion and contraction, the two may jam when the temperature changes, affecting relative rotation. If the gap L is greater than 2.5mm, the positioning accuracy of the suspension component 300 in the second mounting groove 150 will decrease. When the base 100 rotates, the suspension component 300 is prone to displacement and shaking, making it unable to maintain a stable suspension state. At the same time, it will increase the probability of impurities entering and reduce the protective performance.

[0081] Furthermore, a flexible protective ring can be provided on the outer peripheral wall of the suspension support 310. The flexible protective ring can be a silicone ring or a rubber ring. The thickness of the flexible protective ring is slightly smaller than the gap L, which not only does not affect the relative rotation of the two, but also further improves the sealing performance at the gap, effectively blocking dust and moisture from entering, and at the same time plays a buffering role, reducing the collision and wear between the suspension component 300 and the second mounting groove 150.

[0082] In this embodiment, the suspension component 300 is at least partially disposed within the second mounting groove 150. The lower half of the suspension support 310 is embedded within the second mounting groove 150, and the upper half is connected to the face cover 340. The face cover 340 covers the opening of the second mounting groove 150, thus achieving both fixed positioning of the suspension component 300 and ensuring the overall sealing and aesthetics of the wheel hub suspension cover assembly. The suspension support 310 and the second mounting groove 150 are fitted with a clearance fit, requiring no additional fixing structure. Relying on the balance of the suspension component 300's own center of gravity and the cooperation of the power generation component 200, the suspension component 300 is stably stationary relative to the base 100, ensuring that the face cover 340 and the light-emitting component 330 remain relatively stationary when the wheel hub rotates, achieving a clear floating display effect.

[0083] For example, the value of the gap L can be: 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, or 2.5mm. Of course, the gap L can also be any value between the above adjacent values.

[0084] Furthermore, in one embodiment, see [reference] Figure 9 and Figure 10 The flared portion 120 has a flaring inclination angle α relative to the axis of the mounting portion. In the wheel hub suspension cover assembly, the axis of the mounting portion roughly coincides with the rotation axis of the wheel hub. The flared portion 120 extends outward from the end of the mounting portion, and the angle between it and the axis of the mounting portion is the flaring inclination angle α. In this embodiment, α satisfies 0°≤α≤45°.

[0085] By setting the flare tilt angle α within the range of 0° to 45°, a good fit can be achieved between the outer surface of the flare portion 120 and the annular concave portion 12 of the wheel hub, while ensuring sufficient installation space for the suspension component 300. It is understood that when α is close to 0°, the flare portion 120 is almost horizontal or a gentle slope. At this time, the radial extension of the flare portion 120 is relatively long, which can maximize the coverage of the annular concave portion 12 area on the side of the wheel hub, effectively sealing the hollow structure, reducing wind noise, and providing a larger support platform for the suspension component 300. When α is close to 45°, the flare portion 120 has a steeper tilt angle. At this time, the radial extension of the flare portion 120 is relatively short, but it can provide a deeper accommodating space for the suspension component 300 in the axial direction, facilitating the installation of thicker suspension components 300 or light-emitting components 330.

[0086] For example, the value of α can be: 0°, 1°, 2°, 3°, 4°, 5°, 8°, 10°, 13°, 15°, 18°, 20°, 23°, 25°, 28°, 30°, 33°, 35°, 38°, 40°, 42°, 45°, or any value within the range of 0° to 45°.

[0087] In one implementation, see Figure 5The cover 340 includes a first cover portion 341 and a second cover portion 342, the second cover portion 342 being disposed radially outside the first cover portion 341 along the rotor assembly; at least one of the first cover portion 341 and the second cover portion 342 is used to transmit light to display a first pattern, and the other is used to display a second pattern; the projected area of ​​the first cover portion 341 on the plane perpendicular to the axis of the rotor assembly is S4, and the projected area of ​​the second cover portion 342 on the plane perpendicular to the axis of the rotor assembly is S5, wherein S4 and S5 satisfy: 0.30 ≤ ≤0.60; the cover 340 is an integral structure; or, the cover 340 is a split structure, and the first cover portion 341 and the second cover portion 342 are sealed together.

[0088] It is understandable that the first cover 341 and the second cover 342 together constitute the overall appearance of the cover 340. The first cover 341 can be selected to correspond to the brand logo area on a traditional wheel cover, while the second cover 342 corresponds to the extended decorative or lighting information area.

[0089] It is understood that at least one of the first cover portion 341 and the second cover portion 342 is used to transmit light to display the first pattern, and the other is used to display the second pattern. Specifically, the following implementation methods are possible: One implementation of this embodiment is as follows: the first cover 341 is used to transmit light to display the first pattern, and the second cover 342 is opaque but can display the second pattern through surface printing, engraving, or other methods; in this way, only the area of ​​the first cover 341 emits light.

[0090] Another implementation in this embodiment is that the second cover 342 is used to transmit light to display the second pattern, while the first cover 341 is opaque but can display the first pattern through surface treatment; in this way, only the area of ​​the second cover 342 emits light.

[0091] Another implementation in this embodiment: both the first cover 341 and the second cover 342 are used for light transmission, displaying different first and second patterns respectively. In this way, the first cover 341 can optionally transmit the brand logo, while the second cover 342 transmits a surrounding ring light effect or flashing light messages, so as to achieve a richer and more layered visual effect.

[0092] The face cover 340 can be either a one-piece structure or a split structure: Integrated Structure: The first cover portion 341 and the second cover portion 342 are integrally molded parts formed by injection molding or compression molding. For example, they are integrally molded using transparent PC or PMMA material, and then light-transmitting and light-blocking areas are formed on the first cover portion 341 and the second cover portion 342 respectively through spraying, coating, or screen printing processes to achieve zoned light transmission. The integrated structure has the advantages of simple manufacturing, good sealing performance, and low cost.

[0093] Split-type structure: The first cover 341 and the second cover 342 are manufactured independently and then sealed together by means of snap-fit, thread, or ultrasonic welding. The split-type structure allows the first cover 341 and the second cover 342 to be made of different materials, which facilitates the achievement of differentiated optical effects. At the same time, the split-type structure also facilitates partial replacement, so that when it is necessary to change to a different pattern, the corresponding cover of another pattern can be replaced.

[0094] In this embodiment, S4 and S5 satisfy: 0.30 ≤ If S4 / S5 is less than 0.30, the first cover 341 is too small, resulting in insufficient brand recognition; if S4 / S5 is greater than 0.60, the second cover 342 is too narrow, failing to create a sufficiently wide surround light effect, and the advantages of large-area suspended illumination are not fully realized. Within the above ratio range, the first cover 341 can clearly display the brand logo, while the second cover 342 can provide a significant extended light effect. The two work together to achieve a better visual balance.

[0095] For example, the values ​​of S4 / S5 can be: 0.30, 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, 0.40, 0.41, 0.42, 0.43, 0.44, 0.45, 0.46, 0.47, 0.48, 0.49, 0.50, 0.51, 0.52, 0.53, 0.54, 0.55, 0.56, 0.57, 0.58, 0.59, 0.60. Of course, S4 / S5 can also take any value between the above adjacent values.

[0096] Further, see Figure 5 The cover 340 also includes a third cover portion 343, which is disposed around the periphery of the second cover portion 342; that is, the third cover portion 343 is located outside the second cover portion 342 and is adjacent to the second cover portion 342.

[0097] In one aspect of this embodiment, the second cover portion 342 and the third cover portion 343 are used together to display the second pattern. That is, the second cover portion 342 and the third cover portion 343 are a single area, and the patterns displayed by both constitute the overall visual effect of the second pattern. It can be understood that in this solution, the second cover portion 342 displays the inner ring portion of the second pattern, and the third cover portion 343 displays the outer ring portion of the second pattern, and the two together form a complete annular decorative texture. At this time, the second cover portion 342 and the third cover portion 343 can be an integrally formed structure or a separate sealed connection structure.

[0098] It is understood that the sealing connection structure can be selected from at least one of the following methods: adhesive sealing, ultrasonic welding, laser welding, snap-fit ​​sealing ring, threaded connection with sealing gasket, etc.

[0099] For example, when adhesive sealing is selected, a waterproof adhesive is applied to the mating surfaces of the second cover portion 342 and the third cover portion 343, and then pressed and cured.

[0100] In another aspect of this embodiment, the second cover 342 is used to display a second pattern, while the third cover 343 is used to display a third pattern different from the second pattern. That is, the second cover 342 and the third cover 343 independently display different pattern content. It is understood that in this solution, the third cover 343 can display a pattern different from that of the second cover 342. In one example, the second cover 342 displays a logo with light effects, and the third cover 343 displays ambient light effects. By setting the third cover 343, the display layers and visual effects of the wheel hub floating cover are further enriched, so that the cover 340 can be divided into three different display areas from the inside out. Each area can be independently configured with patterns, colors, or light effects, thereby achieving a more complex visual design and functional differentiation.

[0101] In one embodiment, the light-emitting component 330 includes a circuit board assembly and a light-emitting element, the light-emitting element being electrically connected to the circuit board assembly. The circuit board assembly can be a rigid or flexible circuit board, on which driving and control circuits are arranged. The light-emitting element can be an LED bead, an OLED panel, or other solid-state light source. The light-emitting element is disposed on the side of the circuit board assembly facing the cover 340. When the light-emitting element is powered on, the light it emits radiates outward through the cover 340, forming patterns or lighting effects. The circuit board assembly is electrically connected to the battery 320 to obtain operating power. Simultaneously, the circuit board assembly can also be electrically connected to the output terminal of the power generation component 200 to receive the current generated by the power generation component 200.

[0102] See Figure 4The suspended body is provided with a wire passage hole 311. In this embodiment, the wire passage hole 311 can be formed on the suspension support 310. The cable of the battery 320 passes through the wire passage hole 311, with one end connected to the positive and negative leads of the battery 320, and the other end electrically connected to the output end of the stator assembly of the power generation component 200. Through this cable, the electrical energy generated by the power generation component 200 is transmitted to the battery 320 for storage. At the same time, the battery 320 can also supply power to the light-emitting component 330 through the same cable or another cable.

[0103] Furthermore, to prevent external moisture, dust, or sediment from entering the receiving cavity through the wire passage 311 and damaging the circuit board assembly, light-emitting element, or battery 320, a seal is provided inside the wire passage 311. The seal can be a separate sealing ring, a sealing plug, or field-applied sealant. The seal fills the gap between the inner wall of the wire passage 311 and the cable, forming a sealed barrier.

[0104] Optionally, the sealant uses a two-component potting compound. During assembly, after the cable is passed through, the compound is injected from one end of the cable hole 311. After curing, it forms an elastic sealant, which also provides cushioning protection for the cable and prevents vibration fatigue breakage.

[0105] Optionally, the seal is a pre-formed rubber plug with a through hole in the center for the cable to pass through. The rubber plug is inserted into the cable hole 311 with an interference fit to achieve a seal.

[0106] Optionally, the circuit board assembly is a flexible circuit board assembly, which is a highly reliable and flexible printed circuit board made of polyimide or polyester film as a substrate. Compared with traditional rigid circuit boards, the flexible circuit board assembly can be bent and folded, better conforming to the curved shape of the suspension support 310 and making full use of the space within the cavity. At the same time, the flexible circuit board assembly is lightweight and thin, which helps to reduce the overall mass of the suspension assembly 300, reduce rotational inertia, and thus improve the stability of the suspension effect. The light-emitting element is electrically connected to the flexible circuit board assembly. Due to the bendability of the flexible circuit board assembly, the light-emitting element can be arranged on surfaces at different heights or angles to achieve a more three-dimensional light effect.

[0107] In one implementation, see Figure 4 The face cover 340 is provided with at least one partition rib 344 on the side facing the base 100; the partition rib 344 is a protruding structure on the side of the face cover 340 facing the base 100, which extends along the circumference of the face cover 340, preferably a complete annular protrusion, or a non-continuous annular structure composed of multiple arc segments.

[0108] The partition rib 344 is located at the connection between the first cover portion 341 and the second cover portion 342, that is, on the back of the cover 340, the position of the partition rib 344 corresponds exactly to the boundary line between the first cover portion 341 and the second cover portion 342. When the first cover portion 341 and the second cover portion 342 are concentric circle structures, the partition rib 344 is located on the boundary circle between the two.

[0109] In this embodiment, the height of the partition rib 344 can be designed according to the distance between the cover 340 and the light-emitting component 330, and can be selected from 1 mm to 5 mm; wherein, the cross-sectional shape of the partition rib 344 can be rectangular, triangular or semi-circular; the partition rib 344 can be integrally injection molded with the cover 340, without the need for additional assembly steps.

[0110] The light-emitting component 330 includes a first group of LED beads and a second group of LED beads. The first group of LED beads consists of multiple light-emitting elements. The LED beads of the first group of LED beads are arranged circumferentially around the axis of the rotor component to form a central LED bead array. The second group of LED beads consists of multiple other light-emitting elements. These LED beads are arranged circumferentially around the outer side of the first group of LED beads to form a ring-shaped or fan-shaped peripheral LED bead array.

[0111] The projection of the first LED group along the axial direction of the rotor assembly falls on the first cover 341. That is, when viewed from a direction perpendicular to the cover 340, all the light-emitting elements in the first LED group are located within the area covered by the first cover 341, and the light emitted by them is mainly emitted outward through the first cover 341.

[0112] The projection of the second lamp group along the axial direction of the rotor assembly falls on the second cover 342. That is, all the light-emitting elements in the second lamp group are located within the area covered by the second cover 342, and the light emitted by them is mainly emitted outward through the second cover 342.

[0113] The separating rib 344 is used to separate the first LED group and the second LED group. The separating rib 344 is located between the first and second LED groups, spatially separating the two groups of LEDs. This prevents the two groups of LEDs from contacting or short-circuiting during installation or use, and also provides a physical barrier for the directional propagation of light. It is understood that the separating rib 344 can block light emitted from the first LED group from laterally entering the area of ​​the second cover 342, and also blocks light emitted from the second LED group from laterally entering the area of ​​the first cover 341. When the first LED group is lit and the second LED group is off, the separating rib 344 can effectively prevent light leakage or cross-contamination, ensuring that the first cover 341 and the second cover 342 respectively present clear and independent first and second patterns.

[0114] For example, if the first cover 341 displays a white static brand logo and the second cover 342 displays a red flashing light signal, without the separating rib 344, the red light might enter the area of ​​the first cover 341 from the side, causing a reddish tinge to appear around the logo's edge, affecting the visual effect. This problem can be effectively solved by setting the separating rib 344.

[0115] For example, the overall diameter of the cover 340 can be selected as 300 mm, the diameter of the first cover portion 341 is 150 mm, and the second cover portion 342 is an annulus with a width of 75 mm; the partition rib 344 is disposed on the circumference with a diameter of 150 mm, the rib height is 2 mm, and the rib width is 1.5 mm. The first LED bead group is arranged in an annular area with a diameter of 120 mm to 140 mm, and its axial projection falls completely within the first cover portion 341. The second LED bead group is arranged in an annular area with a diameter of 160 mm to 290 mm, and its axial projection falls completely within the second cover portion 342.

[0116] It is worth noting that the dividing rib 344 can be set as a complete annular rib or as multiple arc-shaped rib segments arranged at intervals along the circumference; no limitation is made here.

[0117] In one implementation, see Figure 4 A water-blocking part 160 is provided at the groove of the mounting part. The water-blocking part 160 is annular and surrounds the opening end face of the mounting part. In this embodiment, the water-blocking part 160 and the base 100 are integrally molded parts, that is, the water-blocking part 160, the mounting part, the flared part 120 and the outer edge are integrally molded by injection molding or casting processes, without the need for additional assembly, and have good structural integrity and sealing reliability. The water-blocking part 160 is used to prevent external water sources such as rainwater, car wash water, and road water from entering the groove 101 of the mounting part, and to avoid damage or failure of the power generation component 200 due to water ingress.

[0118] The waterproofing principle of this embodiment is as follows: During vehicle operation, the wheel hub suspension cover assembly rotates together with the wheel. At this time, the base 100 is in a high-speed rotation state. When external water splashes or flows to the vicinity of the suspension wheel hub cover, the annular water-blocking part 160 first acts as a barrier to prevent water from flowing directly into the groove 101 along the axial direction. At the same time, as the base 100 continues to rotate, water droplets adhering to or near the surface of the water-blocking part 160 will be subjected to centrifugal force and thrown outward.

[0119] Through the synergistic effect of the water-blocking part 160 and the centrifugal force of rotation, the interior of the groove 101 can remain dry even under harsh conditions such as heavy rain or wading, ensuring the safe operation of the power generation component 200. Furthermore, the water-blocking part 160 and the base 100 are integrally molded, avoiding the risk of water leakage due to assembly gaps, simplifying the manufacturing process, and reducing costs. Thus, the waterproof structure of this embodiment does not require additional sealing rings or complex sealing designs; it achieves effective waterproofing through its own structure, offering advantages such as simple structure, reliable waterproofing, and long service life.

[0120] This application also proposes a floating hubcap, which includes: a base 100, a power generation component 200, and a suspension component 300. The base 100 is detachably mounted on the hub and has a groove 101. The power generation component 200 includes a rotor assembly and a stator assembly that can rotate relative to each other, with at least a portion of the rotor assembly disposed within the groove 101. The suspension component 300 includes a suspension support 310, a light-emitting component 330, and a cover 340, with at least a portion of the suspension support 310 disposed within the groove 101. The cover 340 is connected to the suspension component. The support base 310 connects and jointly defines a receiving cavity, the light-emitting component 330 is disposed within the receiving cavity, the power-generating component 200 is electrically connected to the light-emitting component 330, and the suspension support base 310 is connected to the stator assembly so that the base 100 is rotatably disposed relative to the suspension assembly 300; the projected area of ​​the hub on the vertical plane of its rotation axis is S1, the projected area of ​​the base 100 on the vertical plane of the rotor assembly's axis is S2, and the projected area of ​​the cover 340 on the vertical plane of the rotor assembly's axis is S3, satisfying: 0.234 ≤ ≤1, 0.231≤ ≤0.998.

[0121] It is worth noting that since the structural features, assembly method and working principle of this floating hubcap are completely consistent with the floating hubcap in the aforementioned hubcap floating cover assembly, please refer to the relevant description in the aforementioned embodiments for details, which will not be repeated here.

[0122] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A wheel hub suspension cover assembly, characterized in that, The wheel hub suspension cover assembly includes a wheel hub and a floating wheel hub cover. The wheel hub has a fixing groove, and the floating wheel hub cover includes: A base, at least partially installed in a fixing groove, wherein the base is provided with a groove; A power generation assembly, including a rotor assembly and a stator assembly that can rotate relative to each other, wherein at least a portion of the rotor assembly is disposed within the groove; A suspension assembly includes a suspension support, a light-emitting component, and a cover. At least a portion of the suspension support is disposed within the groove. The cover is connected to the suspension support and together defines a receiving cavity. The light-emitting component is disposed within the receiving cavity. The power-generating component and the light-emitting component are electrically connected. The suspension support is connected to the stator assembly so that the base is rotatably disposed relative to the suspension assembly. The projected area of ​​the hub on the plane perpendicular to its rotation axis is S1, the projected area of ​​the base on the plane perpendicular to the axis of the rotor assembly is S2, and the projected area of ​​the cover on the plane perpendicular to the axis of the rotor assembly is S3, satisfying: 0.234 ≤ ≤1, 0.231≤ ≤0.

998.

2. The wheel hub suspension cover assembly as described in claim 1, characterized in that, The hub has an axial mounting groove on the side facing the floating hub cover. The bottom wall of the axial mounting groove is provided with the fixing groove. The base is located in the axial mounting groove. The equivalent diameter of the outer contour of the base is D1, which satisfies: D1≥220mm.

3. The wheel hub suspension cover assembly as described in claim 1, characterized in that, The levitation assembly also includes a battery disposed within the receiving cavity. When the base rotates relative to the levitation assembly, the battery is positioned on the lower half of the levitation assembly. The battery is configured to maintain the center of gravity of the levitation assembly below the rotation axis of the rotor assembly. The weight of the levitation assembly is W1, the weight of the battery is W2, and the weight of the lower half of the levitation assembly is W3, satisfying 0.

15. 0.5, 0.575 0.

75.

4. The wheel hub suspension cover assembly as described in claim 1, characterized in that, The suspension support is provided with at least one vent hole, which connects the receiving cavity and the groove; a vent membrane is provided inside the vent hole, which is configured to allow gas to pass through to balance the pressure difference between the receiving cavity and the groove, and to prevent liquid water from entering the receiving cavity from the groove.

5. The wheel hub suspension cover assembly as described in claim 1, characterized in that, The base includes an integrally formed fixing part and a flared part. The groove includes a first mounting groove and a second mounting groove, which are connected. The first mounting groove is located in the fixing part, and the second mounting groove is located in the flared part. The opening area of ​​the second mounting groove on the side away from the first mounting groove is gradually widened.

6. The wheel hub suspension cover assembly as described in claim 5, characterized in that, The suspension component is at least partially disposed within the second mounting groove, and there is a gap L between the outer peripheral wall of the suspension component and the groove wall of the second mounting groove, satisfying: 0.2mm≤L≤2.5mm.

7. The wheel hub suspension cover assembly as described in any one of claims 1 to 6, characterized in that, The cover includes a first cover portion and a second cover portion, the second cover portion being disposed radially outside the first cover portion along the rotor assembly; at least one of the first cover portion and the second cover portion is used to transmit light to display a first pattern, and the other is used to display a second pattern; the projected area of ​​the first cover portion on the plane perpendicular to the axis of the rotor assembly is S4, and the projected area of ​​the second cover portion on the plane perpendicular to the axis of the rotor assembly is S5, wherein S4 and S5 satisfy: 0.30 ≤ ≤0.60; the cover is an integral structure; or, the cover is a split structure, and the first cover part and the second cover part are sealed together.

8. The wheel hub suspension cover assembly as described in claim 7, characterized in that, The light-emitting component includes a circuit board assembly and a light-emitting element, the light-emitting element being electrically connected to the circuit board assembly; the suspension support is provided with a wire hole, the battery cable passes through the wire hole and is electrically connected to the power generation component, and a sealing element is provided in the wire hole to seal the wire hole.

9. The wheel hub suspension cover assembly as described in claim 8, characterized in that, The cover has at least one partition rib on the side facing the base, and the partition rib is located at the connection between the first cover and the second cover; the light-emitting component includes a first LED group and a second LED group, the projection of the first LED group along the axial direction of the rotor assembly falls on the first cover, and the projection of the second LED group along the axial direction of the rotor assembly falls on the second cover; the partition rib is used to separate the first LED group and the second LED group.

10. A floating hubcap for mounting on a vehicle hub, characterized in that, include: The base is detachably mounted on the hub, and the base has a groove. A power generation assembly, including a rotor assembly and a stator assembly that can rotate relative to each other, wherein at least a portion of the rotor assembly is disposed within the groove; A suspension assembly includes a suspension support, a light-emitting component, and a cover. At least a portion of the suspension support is disposed within the groove. The cover is connected to the suspension support and together defines a receiving cavity. The light-emitting component is disposed within the receiving cavity. The power-generating component is electrically connected to the light-emitting component. The suspension support is connected to the stator assembly so that the base is rotatably disposed relative to the suspension assembly. The projected area of ​​the hub on the plane perpendicular to its rotation axis is S1, the projected area of ​​the base on the plane perpendicular to the axis of the rotor assembly is S2, and the projected area of ​​the cover on the plane perpendicular to the axis of the rotor assembly is S3, satisfying: 0.234 ≤ ≤1, 0.231≤ ≤0.998.

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