Hub, wheel assembly and vehicle

Abstract

The utility model relates to a hub, a wheel assembly and a vehicle, the hub comprises a rim, a middle connecting piece and a plurality of spoke assemblies, the plurality of spoke assemblies are respectively connected between the rim and the middle connecting piece, and are arranged on the inner ring of the rim at equal intervals along the circumferential direction; the plurality of spoke assemblies enable the orthographic projection of the hub in the axial direction of the hub to be of an asymmetric structure, a plurality of hub mounting holes are formed in the middle connecting piece, and the interval area between every two adjacent spoke assemblies is configured to be aligned with the hub mounting holes in the extending direction of the corresponding spoke assemblies. In the wheel hub of an asymmetric structure, when the wheel is subjected to offset collision and the stress of the spoke assembly reaches a certain threshold value, the spoke assembly can be fractured in the area between the interval area and the wheel hub mounting hole, so that collision energy is unloaded, the spoke assembly can be protected from being fractured, and the safety performance of a vehicle is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wheel hubs, and in particular to a wheel hub, a wheel assembly and a vehicle. Background Art

[0002] The wheel hub is the main body for mounting the tire and is used to mount on the axle of the vehicle, so its structural performance is closely related to various performance parameters of the vehicle. In the related art, in order to make the wheel hub have more stable performance, the shape and structure of the wheel hub are mostly symmetrical structures. However, with the improvement of user demand, while pursuing performance, there are also higher requirements for the shape of the vehicle. Based on this, providing a wheel hub with beautiful shape and guaranteed performance has become an urgent problem to be solved. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a wheel hub, a wheel assembly and a vehicle.

[0004] According to a first aspect of an embodiment of the present disclosure, a wheel hub is provided, comprising a rim, an intermediate connecting member and a plurality of spoke assemblies, wherein the plurality of spoke assemblies are respectively connected between the rim and the intermediate connecting member and are arranged at equal intervals on the inner ring of the rim in a circumferential direction, and the plurality of spoke assemblies make the hub have an asymmetric structure in its axial direction along the orthographic projection, wherein a plurality of hub mounting holes are formed on the intermediate connecting member, and the spacing area between each two adjacent spoke assemblies is configured to be aligned with the hub mounting hole in the extension direction of the corresponding spoke assembly.

[0005] Optionally, adjacent edges of two adjacent spoke assemblies are arranged parallel to each other and are configured to extend along a first direction, so that the spacing area is configured to extend along the first direction, and the hub mounting hole is located on an extension path S1 of the spacing area.

[0006] Optionally, the number of the spacing areas is the same as the number of the hub mounting holes.

[0007] Optionally, the spoke assembly includes a first spoke and a second spoke, wherein the first spoke and the second spoke are connected at one end close to the wheel center and connected to the intermediate connecting member, and are connected to the rim at an opposite end at intervals from each other, wherein the extension directions of the first spoke and the second spoke do not intersect with the central axis of the hub.

[0008] Optionally, an angle A between the first spoke and the second spoke is an acute angle.

[0009] Optionally, the length of the first spoke is greater than the length of the second spoke, and on a side of the hub close to the outer side of the vehicle, the width W1 of the first spoke is greater than the width W2 of the second spoke.

[0010] Optionally, the side contour of the spacing area close to the wheel center is formed by an intermediate connecting member, the length of the first spoke is greater than the length of the second spoke, and an extension path S2 of the first spoke passes through the side of the spacing area corresponding to the intermediate connecting member.

[0011] Optionally, in the axial projection of the hub, a first chamfer with a smooth transition is formed at the angle where the spoke assembly is connected to the rim.

[0012] Optionally, the wheel rim includes a wheel rim and a flange on the side of the wheel rim, the spoke assembly is mounted on the wheel rim, and a second chamfer with a smooth transition is formed between the spoke assembly and the wheel rim on a side of the wheel hub close to the inner side of the vehicle.

[0013] Optionally, the wheel rim includes a wheel rim and a flange on the side of the wheel rim, the spoke assembly is mounted on the wheel rim, the wheel rim is provided with a first weight-reducing groove at a position where it is connected to the wheel rim, and the first weight-reducing groove is configured to be opened along a circumference of the wheel rim.

[0014] Optionally, the spoke assembly is provided with a second weight-reducing groove on a side close to the inner side of the vehicle, and the distance from the edge of the second weight-reducing groove to the edge of the corresponding spoke assembly is not less than 2 mm.

[0015] Optionally, the intermediate connecting member is constructed as a frustum structure, the wheel hub mounting hole is formed in the middle column section of the frustum structure, a third weight reducing groove is opened in the inclined area of ​​the frustum structure, and the third weight reducing groove is formed on the side of the intermediate connecting member close to the inner side of the vehicle, and in the axial projection along the wheel hub, the spacing area, the wheel hub mounting hole and the third weight reducing groove are located in the same straight line path S3.

[0016] Optionally, the middle column section of the frustum structure is formed with a fourth weight reducing groove, and the fourth weight reducing groove and the wheel hub mounting hole are evenly distributed in the circumferential direction of the wheel center, and the edge of the fourth weight reducing groove close to the outer periphery of the middle column section is configured to follow the shape of the outer edge of the middle column section, and the edge of the fourth weight reducing groove close to the wheel hub mounting hole is configured to follow the shape of the edge of the wheel hub mounting hole.

[0017] Optionally, the intermediate connecting member includes an intermediate column section, the wheel hub mounting hole is formed in the intermediate column section, a step is formed on the outer periphery of the intermediate column section, and the step is recessed toward the outer side of the vehicle relative to the intermediate column section to form a fifth weight reduction groove.

[0018] Optionally, a sixth weight reducing groove is formed on the middle column section, and the sixth weight reducing groove and the wheel hub mounting hole are evenly distributed in the circumferential direction of the wheel center, and the edge of the sixth weight reducing groove close to the wheel hub mounting hole is configured to follow the edge of the wheel hub mounting hole, and the sixth weight reducing groove is configured to be connected to the fifth weight reducing groove.

[0019] According to a second aspect of an embodiment of the present disclosure, there is provided a wheel assembly, comprising the wheel hub provided by the present disclosure.

[0020] Optionally, it includes a cover plate which is covered on the wheel hub, a hollow area is enclosed between the spoke assembly and the rim, and the cover plate is used to cover the hollow area.

[0021] Optionally, there are gaps between the cover plate and the edge of the spoke assembly and the edge of the rim.

[0022] According to a third aspect of an embodiment of the present disclosure, there is provided a vehicle, comprising the wheel assembly provided by the present disclosure.

[0023] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: in a wheel hub with an asymmetric structure, the spacing area between the two spoke assemblies is set to be aligned with the hub mounting hole, and when the wheel receives an offset collision and the force on the spoke assembly reaches a certain threshold, a fracture may occur in the area between the spacing area and the hub mounting hole, thereby unloading the energy of the collision, thereby protecting the spoke assembly from fracture and ensuring the safety performance of the vehicle.

[0024] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] Figure 1 The figure is a view showing an orthographic projection of a wheel hub from the outer side to the inner side of a vehicle according to an exemplary embodiment.

[0027] Figure 2 is a cross-sectional view A of a wheel hub according to an exemplary embodiment.

[0028] Figure 3 is a view from the inner side of a vehicle showing a wheel hub according to an exemplary embodiment.

[0029] Figure 4 is a cross-sectional view A of a wheel hub according to an exemplary embodiment.

[0030] Figure 5The figure is a view showing an orthographic projection of a wheel hub from the inner side to the outer side of a vehicle according to an exemplary embodiment.

[0031] Figure 6 The figure is a view showing an orthographic projection of a wheel hub from the inner side to the outer side of a vehicle according to an exemplary embodiment.

[0032] Figure 7 is a schematic diagram of a wheel assembly according to an exemplary embodiment.

[0033] Description of Reference Numerals

[0034] 1-wheel hub, 2-cover plate, 3-hollow area, 10-rim, 11-wheel rim, 12-wheel flange, 20-intermediate connecting piece, 30-spoke assembly, 31-first spoke, 32-second spoke, 40-hub mounting hole, 50-spacer area, 61-first chamfer, 62-second chamfer, 71-first weight reduction groove, 72-second weight reduction groove, 73-third weight reduction groove, 74-fourth weight reduction groove, 75-fifth weight reduction groove, 76-sixth weight reduction groove. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0036] In the present disclosure, unless otherwise specified, directional terms such as "inside" and "outside" are defined according to the contours of the corresponding components. For example, the side close to the outside of the vehicle refers to the side close to the outside of the vehicle. Figure 1 The side facing outward in the figure is the side facing outward, while the side facing the inside of the vehicle is the side facing outward. Figure 1 The figure is facing inwards, please refer to Figures 2 to 4 The terms "first", "second", etc. used in this disclosure are to distinguish one element from another element and do not have order and importance.

[0037] Reference Figures 1 to 7The embodiment of the present disclosure provides a wheel hub 1. The wheel hub includes a rim 10, an intermediate connector 20 and a plurality of spoke assemblies 30. The rim 10 is used to form the outer peripheral area of ​​the wheel hub 1, the intermediate connector is used to form the central area of ​​the wheel hub 1, and the plurality of spoke assemblies 30 are respectively connected between the rim 10 and the intermediate connector 20, and are arranged at equal intervals along the circumferential direction on the inner ring of the rim 10, and the spacing area 50 between each two adjacent spoke assemblies 30 can be used as a heat dissipation hole for the vehicle brake disc. In the embodiment of the present disclosure, the plurality of spoke assemblies 30 can make the orthographic projection of the wheel hub 1 along its axial direction an asymmetric structure. Compared with the symmetrical wheel hub in the prior art, this asymmetric wheel hub has a great breakthrough in shape and has a better sense of design as a whole. However, the asymmetry of the structure brings about the adverse effects of the wheel hub on various performances of the whole vehicle. Usually, a plurality of wheel hub mounting holes 40 are formed on the intermediate connector 20 for connecting the wheel hub 1 to the axle.

[0038] In the embodiment of the present disclosure, in order to eliminate the performance impact caused by the asymmetric structure, the spacing area 50 between each two adjacent spoke assemblies 30 is configured to be aligned with the hub mounting hole 40 in the extension direction of the corresponding spoke assembly 30. The corresponding spoke assembly 30 refers to the spoke assembly constituting the spacing area 50. For example, when the spoke assembly 30 includes the first spoke 31 and the second spoke 32 as described below, refer to Figure 1 , wherein the corresponding spokes of the spacing area 50 indicated by the reference numerals refer to the second spoke on the left side and the first spoke on the right side thereof. The spacing area 50 is aligned with the hub mounting hole 40 in the extension direction of the corresponding spoke assembly 30, which means that when the corresponding spoke assembly 30 is subjected to an offset collision, the force can be transmitted between the spacing area 50 and the hub mounting hole 40 along the extension direction of the spoke assembly 30 (such as Figure 1 The area P is circled in the middle.

[0039] Through the above technical solution, in a wheel hub with an asymmetric structure, the spacing area 50 between the two spoke assemblies 30 is set to be aligned with the hub mounting hole 40. When the wheel receives an offset collision and the force on the spoke assembly 30 reaches a certain threshold, a fracture may occur in the area between the spacing area 50 and the hub mounting hole 40, thereby unloading the energy of the collision, thereby protecting the spoke assembly 30 from fracture and ensuring the safety performance of the vehicle.

[0040] In one embodiment, referring to Figure 1, the adjacent edges of two adjacent spoke assemblies 30 can be configured to be arranged parallel to each other and are configured to extend along the first direction, so that the spacing area 50 is configured to extend along the first direction, and the first direction here refers to the extension direction of the edge of the spoke assembly corresponding to the corresponding spacing area 50, and the first direction of each spacing area 50 is different based on the arrangement direction of the spoke assembly 30. When the spacing area 50 extends regularly in the first direction, the hub mounting hole 40 can be located on the extension path S1 of the spacing area 50. When the spacing area 50 extends irregularly, it can be ensured that the spacing part of the spacing area 50 can be aligned with the hub mounting hole 40 part in the extension direction of the edge of the corresponding spoke assembly 30. Here, in order to ensure uniform force, the center line of the spacing area 50 can be further made to pass through the center of the hub mounting hole 40.

[0041] In the disclosed embodiment, the number of spacing areas 50 is the same as the number of hub mounting holes 40, so that it can be ensured that each spoke assembly 30 can unload energy by the area between the hub mounting hole 40 and the spacing area 50 after being subjected to force, thereby protecting each spoke assembly 30 and ensuring the safety performance of the entire vehicle.

[0042] According to an embodiment of the present disclosure, the spoke assembly 30 may include a first spoke 31 and a second spoke 32. The first spoke 31 and the second spoke 32 are connected at one end close to the wheel center and connected to the intermediate connecting member 20, and are connected to the rim 10 at an opposite end at intervals. In short, the spoke assembly 30 and the edge of the rim 10 may enclose a triangular shape. The extension directions of the first spoke 31 and the second spoke 32 do not intersect with the central axis of the hub 1, so that the overall shape has a more asymmetrical design sense.

[0043] Among them, the angle a between the first spoke 31 and the second spoke 32 can be set to an acute angle, so that the triangle formed by the spoke assembly 30 and the edge of the rim 10 is more stable, so that the spoke assembly 30 has a higher structural strength and ensures the overall collision performance of the wheel.

[0044] In order to make the hub more beautiful, in one embodiment, the length of the first spoke 31 can be set to be greater than the length of the second spoke 32. However, in the case of the same width, the long spokes have lower rigidity than the short spokes and are easily deformed. In addition, since the connected first spokes 31 and the second spokes 32 do not intersect with the central axis of the hub, the inclination angle of the first spoke 31 is larger, so that the overall structural strength of the first spoke 31 in this arrangement is lower than that of the second spoke. Therefore, in order to solve this problem, in the embodiment of the present disclosure, the first spoke 31 is combined with the second spoke 32 to form a plurality of spokes. Figure 1On the side of the wheel hub 1 close to the outer side of the vehicle, the width W1 of the first spoke 31 is greater than the width W2 of the second spoke 32 , thereby compensating the stiffness difference of the first spoke 31 relative to the second spoke 32 by material.

[0045] Reference Figure 1 As shown, the side profile of the spacing area 50 close to the wheel center is formed by the intermediate connecting member 20, and the other side hubs of the spacing area 50 are respectively formed by two adjacent spoke assemblies 30 and the rim 10. When the length of the first spoke 31 is greater than the length of the second spoke 32, according to the above, the structural strength of the first spoke 31 will be poor. Based on this, in the embodiment of the present disclosure, the extension path S2 of the first spoke 31 can be set to pass through the side of the corresponding intermediate connecting member 20 of the spacing area 50. Figure 1 In the path S2 shown, when the first spoke 31 receives the collision force from the outside, the force will be transferred from the first spoke 31 to the intermediate connecting member 20, so that the force transmission is continuous, and will not be transmitted to the spacing area 50 to cause the force transmission to be disconnected, thereby ensuring the strength of the longer first spoke 31 and avoiding its breakage.

[0046] exist Figure 1 In the perspective shown, i.e., in the projection of the hub 1 along the axial direction, a first chamfer 61 with a smooth transition can be formed at the angle where the spoke assembly 30 is connected to the rim 10. When the spoke assembly 30 has a first spoke 31 and a second spoke 32, the first chamfer 61 can be formed between the first spoke 31 and the rim 10 and between the second spoke 32 and the rim 10. On the one hand, by setting the chamfer, stress concentration at the angle can be avoided and the force transition can be smooth. For example, the angle between the second spoke 32 and the rim 10 is close to a right angle, where stress concentration is more likely to occur. The first chamfer 61 can solve this problem well and effectively increase the impact fatigue resistance of the wheel. In addition, by setting the first chamfer 61, the material at the connection between the spoke assembly 30 and the rim 10 can be increased, thereby increasing the material stiffness. For example, according to software simulation calculations, the stress and stiffness at the angle between the first spoke 31 and the rim 10 are relatively sensitive. By increasing the material to increase the stiffness, the resonance mode of the spoke can be increased.

[0047] Reference Figure 2 and Figure 3The wheel rim 10 may include a wheel rim 11 and a rim 12 on the side of the wheel rim 11, and the spoke assembly 30 may be mounted on the rim 12, that is, connected between the rim 12 and the intermediate connector 20. In particular, a second chamfer 62 with a smooth transition may be formed between the spoke assembly 30 and the rim 12 on the side of the wheel hub 1 close to the inner side of the vehicle. By setting the second chamfer 62 to overlap the spoke assembly 30 and the rim 12 together, the strength of the overlapped area may be enhanced, thereby improving the 13° impact fatigue performance of the wheel hub, and meeting the heavy load requirements or high requirements for collision performance.

[0048] Reference Figure 4 In another embodiment, when the wheel hub mainly meets light load requirements or general collision requirements, the above-mentioned second chamfer 62 may not be set to enhance strength. In addition, a first weight-reducing groove 71 may be opened at the position where the rim 12 and the wheel rim 11 are connected to reduce the overall weight. The first weight-reducing groove 71 may be constructed to be opened along a circle of the rim 12 to facilitate processing and improve structural uniformity.

[0049] In order to further reduce the weight of the wheel hub, refer to Figure 5 and Figure 6 The spoke assembly 30 may be provided with a second weight-reducing groove 72 on one side close to the inner side of the vehicle, and the distance from the edge of the second weight-reducing groove 72 to the edge of the corresponding spoke assembly 30 is not less than 2 mm to ensure that the spoke assembly 30 has sufficient rigidity.

[0050] In one embodiment of the present disclosure, the intermediate connection member 20 can be constructed as a truncated cone structure, and the large surface of the truncated cone can face the outside of the vehicle or the inside of the vehicle. The truncated cone structure can be decomposed into a middle column section and an inclined surface area around the outer periphery of the middle column section. The hub mounting hole 40 can be formed in the middle column section of the truncated cone structure, and the inclined surface area of ​​the truncated cone structure can be provided with a third weight reduction groove 73, which is formed on one side of the intermediate connection member 20 close to the inside of the vehicle. In the axial projection along the wheel hub 1, that is, Figure 5 From the perspective shown, the spacing area 50, the hub mounting hole 40 and the third weight-reducing groove 73 can be located in the same straight path S3, that is, the same straight line can pass through the three at the same time. The three are arranged in the same straight path, which helps to preferentially shrink, deform or break in these areas during a collision, thereby protecting the spoke assembly 30.

[0051] Furthermore, the middle column section of the frustum structure can be formed with a fourth weight-reducing groove 74 for weight reduction. The fourth weight-reducing groove 74 and the wheel hub mounting hole 40 are evenly distributed in the circumferential direction of the wheel center. The edge of the fourth weight-reducing groove 74 close to the outer periphery of the middle column section is configured to follow the shape of the outer edge of the middle column section. The edge of the fourth weight-reducing groove 74 close to the wheel hub mounting hole 40 is configured to follow the shape of the edge of the wheel hub mounting hole 40 to reduce weight as much as possible.

[0052] In another embodiment of the present disclosure, referring to Figure 6 When the intermediate connecting member 20 includes an intermediate column section, the hub mounting hole 40 can be formed in the intermediate column section, and a step is formed on the outer periphery of the intermediate column section, and the step is recessed toward the outer side of the vehicle relative to the intermediate column section to form a fifth weight-reducing groove 75. In other words, the fifth weight-reducing groove 75 is formed by cutting the outer peripheral inclined surface section on the small side of the truncated cone structure, thereby achieving the purpose of weight reduction.

[0053] Furthermore, a sixth weight-reducing groove 76 (the shape of which may be the same as the fourth weight-reducing groove 74 in the previous embodiment) may be formed on the middle column section, and the sixth weight-reducing groove 76 and the hub mounting hole 40 are evenly distributed in the circumferential direction of the wheel center, and the edge of the sixth weight-reducing groove 76 close to the hub mounting hole 40 is configured to follow the edge of the hub mounting hole 40, and the sixth weight-reducing groove 76 is configured to communicate with the fifth weight-reducing groove 75 to reduce weight as much as possible. In any embodiment, the fourth weight-reducing groove 74 or the sixth weight-reducing groove 76 will not penetrate to the central axis hole of the hub to ensure the connection between the hub and other structures, ensure the overall lateral stiffness of the hub, do not affect fatigue performance, and ensure collision performance.

[0054] According to a second aspect of an embodiment of the present disclosure, there is provided a wheel assembly, comprising the above-mentioned wheel hub 1, and having all the beneficial effects of the above-mentioned wheel hub, which will not be described in detail here.

[0055] Among them, refer to Figure 2 and Figure 7 The wheel assembly may further include a cover plate 2 covering the wheel hub 1, a hollow area 3 is formed between the spoke assembly 30 and the rim 10, and the cover plate 2 is used to cover the hollow area 3. The surface of the cover plate 2 is smooth and flat, which is conducive to reducing wind resistance and increasing the aesthetics of the wheel assembly. The cover plate 2 can be detachably connected to the wheel hub 1 by fasteners.

[0056] Furthermore, there are gaps between the cover plate 2 and the edge of the spoke assembly 30 and the edge of the rim 10, and the gaps can facilitate air circulation, thereby dissipating the heat of the brake disc.

[0057] According to a third aspect of an embodiment of the present disclosure, there is provided a vehicle comprising the above-mentioned wheel assembly and having all the beneficial effects of the above-mentioned wheel assembly, which will not be described in detail here.

[0058] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0059] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A wheel hub, characterized in that: It includes a rim, an intermediate connecting member and a plurality of spoke assemblies, wherein the plurality of spoke assemblies are respectively connected between the rim and the intermediate connecting member and are arranged at equal intervals on the inner ring of the rim along the circumferential direction, and the plurality of spoke assemblies make the orthographic projection of the hub along its axial direction to be an asymmetric structure, wherein a plurality of hub mounting holes are formed on the intermediate connecting member, and the spacing area between each two adjacent spoke assemblies is configured to be aligned with the hub mounting hole in the extension direction of the corresponding spoke assembly.

2. The wheel hub according to claim 1, characterized in that: Adjacent edges of two adjacent spoke assemblies are arranged parallel to each other and are configured to extend along a first direction, so that the spacing area is configured to extend along the first direction, and the hub mounting hole is located on an extension path S1 of the spacing area.

3. The wheel hub according to claim 1, characterized in that: The number of the spacing areas is the same as the number of the hub mounting holes.

4. The wheel hub according to claim 1, characterized in that: The spoke assembly includes a first spoke and a second spoke, wherein the first spoke and the second spoke are connected at one end close to the wheel center and connected to the intermediate connecting member, and are connected to the rim at an opposite end at intervals from each other, wherein the extension directions of the first spoke and the second spoke do not intersect with the central axis of the hub.

5. The wheel hub according to claim 4, characterized in that: An angle a between the first spoke and the second spoke is an acute angle.

6. The wheel hub according to claim 4, characterized in that The length of the first spoke is greater than the length of the second spoke, and on a side of the hub close to the outer side of the vehicle, the width W1 of the first spoke is greater than the width W2 of the second spoke.

7. The wheel hub according to claim 4, characterized in that: The side profile of the spacing area close to the wheel center is formed by an intermediate connecting member, the length of the first spoke is greater than the length of the second spoke, and an extension path S2 of the first spoke passes through the side of the spacing area corresponding to the intermediate connecting member.

8. The wheel hub according to claim 1, characterized in that In the axial projection of the hub, a first chamfer with a smooth transition is formed at the angle where the spoke assembly is connected to the rim.

9. The wheel hub according to claim 1, characterized in that: The wheel rim comprises a wheel rim and a flange on the side of the wheel rim, the spoke assembly is mounted on the wheel rim, and a second chamfer with a smooth transition is formed between the spoke assembly and the wheel rim on a side of the wheel hub close to the inner side of the vehicle.

10. The wheel hub according to claim 1, characterized in that The wheel rim comprises a wheel rim and a flange on the side of the wheel rim, the spoke assembly is mounted on the wheel rim, a first weight-reducing groove is provided at a position where the wheel rim is connected to the wheel rim, and the first weight-reducing groove is configured to be opened along a circumference of the wheel rim.

11. The wheel hub according to claim 1, characterized in that The spoke assembly is provided with a second weight-reducing groove on a side close to the inner side of the vehicle, and the distance from the edge of the second weight-reducing groove to the edge of the corresponding spoke assembly is not less than 2 mm.

12. The wheel hub according to claim 1, characterized in that The intermediate connecting member is constructed as a frustum structure, the wheel hub mounting hole is formed in the middle column section of the frustum structure, a third weight reducing groove is opened in the inclined area of ​​the frustum structure, and the third weight reducing groove is formed on the side of the intermediate connecting member close to the inner side of the vehicle. In the axial projection along the wheel hub, the spacing area, the wheel hub mounting hole and the third weight reducing groove are located in the same straight line path S3.

13. The wheel hub according to claim 12, characterized in that The middle column section of the frustum structure is formed with a fourth weight-reducing groove, and the fourth weight-reducing groove and the wheel hub mounting hole are evenly distributed in the circumferential direction of the wheel center, and the edge of the fourth weight-reducing groove close to the outer periphery of the middle column section is configured to follow the shape of the outer edge of the middle column section, and the edge of the fourth weight-reducing groove close to the wheel hub mounting hole is configured to follow the shape of the edge of the wheel hub mounting hole.

14. The wheel hub according to claim 1, characterized in that The intermediate connecting member includes an intermediate column section, the wheel hub mounting hole is formed in the intermediate column section, a step is formed on the outer periphery of the intermediate column section, and the step is recessed toward the outer side of the vehicle relative to the intermediate column section to form a fifth weight-reducing groove.

15. The wheel hub according to claim 14, characterized in that A sixth weight-reducing groove is formed on the middle column section. The sixth weight-reducing groove and the wheel hub mounting hole are evenly distributed in the circumferential direction of the wheel center. The edge of the sixth weight-reducing groove close to the wheel hub mounting hole is configured to follow the shape of the edge of the wheel hub mounting hole. The sixth weight-reducing groove is configured to communicate with the fifth weight-reducing groove.

16. A wheel assembly, characterized in that: Comprising a hub according to any one of claims 1-15.

17. The wheel assembly according to claim 16, characterized in that It comprises a cover plate which is arranged on the wheel hub, a hollow area is formed between the spoke assembly and the wheel rim, and the cover plate is used to cover the hollow area.

18. The wheel assembly according to claim 17, characterized in that There are gaps between the cover plate and the edge of the spoke assembly and the edge of the rim.

19. A vehicle, characterized in that: Comprising a wheel assembly according to any one of claims 16-18.

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