Hub assembly and vehicle

Abstract

The utility model provides a hub assembly and a vehicle. The hub assembly comprises a hub with a hollow area; the guide groove is formed in the hub, located on the side, away from the center of the hub, of the hollow area and extends in the circumferential direction of the hub; one end of the wind resistance sheet is slidably connected with the guide groove, and the other end is rotatably connected with the hub, so that the wind resistance sheet can rotate relative to the hub; a first magnet is arranged on the hub, a second magnet is arranged on the wind resistance piece, and the first magnet and the second magnet are oppositely arranged in the circumferential direction of the hub and repel each other. Centrifugal force generated by rotation of the hub enables the wind resistance pieces to slide between a first position where the hollowed-out areas are exposed and a second position where at least part of the hollowed-out areas are shielded on the guide grooves; the first magnet and the second magnet apply acting force to each other through a magnetic field, bumping and vibration of the wheel do not affect the force application effect of the magnetic force between the first magnet and the second magnet on the wind resistance piece, and the use stability of the hub assembly is improved.

Description

Technical Field

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

[0002] When the vehicle is driving, the wheel mainly rotates, and there are multiple heat dissipation windows on the wheel for dissipating heat for the wheel brake system, which leads to a more complex airflow around the wheel, and finally affects the wind resistance of the whole vehicle. In order to reduce the wind resistance of the vehicle when driving, the existing wheel structure usually rotates to set a baffle on the wheel structure, and uses a spring to connect between the baffle and the wheel hub; when the vehicle is in a low-speed driving state or stopped, the baffle needs to be in a position to expose the heat dissipation window to ensure that the heat dissipation window can fully dissipate heat for the vehicle brake system; when the vehicle is driving at high speed, the baffle moves under the action of the centrifugal force of the wheel rotation, so that the baffle overcomes the elastic force of the spring to cover the heat dissipation window on the wheel, thereby reducing the wind resistance of the wheel; when the vehicle changes from high-speed driving to low-speed driving or stops, the spring can drive the baffle back to the position of exposing the heat dissipation window.

[0003] However, the road environment in which vehicles travel is complex. When the road conditions are poor, the wheels will be subjected to greater bumps and vibrations. When the vibration is transmitted to the spring on the baffle, it is easy to cause the spring to fatigue or be damaged, which reduces the elastic force of the spring itself and makes the baffle unable to return to the position of exposing the heat dissipation window, thereby affecting the heat dissipation of the vehicle's braking system and affecting the stability of the wheel when in use. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a wheel hub assembly and a vehicle.

[0005] The present disclosure provides a wheel hub assembly, comprising:

[0006] a wheel hub, having a hollowed-out area;

[0007] A guide groove is provided on the wheel hub and is located on a side of the hollow area away from the center of the wheel hub and extends along the circumference of the wheel hub;

[0008] A wind resistance sheet, one end of which is slidably connected to the guide groove and the other end of which is rotatably connected to the wheel hub;

[0009] The wheel hub is provided with a first magnet, the wind resistance sheet is provided with a second magnet, and the first magnet and the second magnet are arranged opposite to each other in the circumferential direction of the wheel hub and repel each other;

[0010] The wind resistance sheet can slide on the guide groove between a first position exposing the hollow area and a second position shielding at least a portion of the hollow area.

[0011] Optionally, the hub includes an inner ring, an outer ring and a plurality of spokes, the inner ring is arranged on the inner side of the outer ring, the spokes are connected between the inner ring and the outer ring, the plurality of spokes are arranged at intervals along the circumference of the inner ring, the hollow area is formed between two adjacent spokes, the guide groove is connected to the outer ring, one end of the wind resistance sheet is rotatably connected to the inner ring, and the other end extends to the outer ring to be slidably connected to the guide groove.

[0012] Optionally, the first magnet is arranged on the outer ring, and the second magnet is arranged at one end of the wind resistance piece close to the outer ring, so that the repulsive force between the first magnet and the second magnet drives the wind resistance piece to move toward the first position.

[0013] Optionally, a sliding block is provided at one end of the wind resistance sheet close to the outer ring, the sliding block is slidably connected to the guide groove, and the second magnet is provided on the sliding block.

[0014] Optionally, a rotating shaft is provided at one end of the wind resistance piece close to the inner ring, and the wind resistance piece is rotatably connected to the inner ring via the rotating shaft.

[0015] Optionally, the rotational connection between the wind deflector and the wheel hub is a rotational connection point, and when the wind deflector is in the first position, along the circumference of the wheel hub, the center of gravity of the wind deflector and the rotational connection point are spaced apart along the circumference of the wheel hub.

[0016] Optionally, the area of ​​the wind resistance sheet is smaller than the area of ​​the hollow area, so that when the wind resistance sheet rotates to the second position, the wind resistance sheet partially covers the hollow area;

[0017] and / or,

[0018] The area of ​​the wind resistance sheet is greater than or equal to the area of ​​the hollow area, so that when the wind resistance sheet rotates to the second position, the wind resistance sheet completely covers the hollow area.

[0019] Optionally, a dimension of the spoke along the circumferential direction of the hub is greater than or equal to a dimension of the wind resistance sheet along the circumferential direction of the hub.

[0020] Optionally, there are multiple hollow areas, the number of the guide slots and the wind resistance sheets is equal to the number of the hollow areas, and each hollow area is correspondingly provided with one guide slot and one wind resistance sheet.

[0021] The present disclosure also provides a vehicle, comprising the wheel hub assembly as described in any one of the above items.

[0022] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0023] The present disclosure provides a hub assembly and a vehicle. The hub assembly includes: a hub having a hollow area; a guide groove, which is arranged on the hub and located on a side of the hollow area away from the center of the hub and extends along the circumference of the hub; a wind baffle, one end of which is slidably connected to the guide groove and the other end of which is rotatably connected to the hub, so that the wind baffle can rotate relative to the hub; a first magnet is arranged on the hub, and a second magnet is arranged on the wind baffle, the first magnet and the second magnet are arranged opposite to each other in the circumference of the hub and repel each other; the centrifugal force of the rotation of the hub enables the wind baffle to slide between a first position on the guide groove that exposes the hollow area and a second position that at least partially shields the hollow area. When the wheel hub rotates at a faster speed, the centrifugal force is larger, so that the wind resistance piece overcomes the magnetic force of the first magnet and the second magnet and moves to the second position to reduce the wind resistance when the wheel hub rotates quickly. When the wheel hub rotates at a slower speed, the centrifugal force is smaller, or when the wheel hub is stationary, the wind resistance piece is only affected by gravity and magnetic force, so that the wind resistance piece returns to the first position under the action of the magnetic force of the first magnet and the second magnet to ensure the heat dissipation effect of the wheel braking system. Compared with using a spring to apply force to the wheel hub and the wind resistance piece, the first magnet and the second magnet apply force to each other through the magnetic field, and the bumps and vibrations of the wheel will not affect the force effect of the magnetic force between the first magnet and the second magnet on the wind resistance piece, thereby improving the stability and safety of the wheel when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 It is a perspective structural schematic diagram of the wheel hub according to the embodiment of the present disclosure;

[0027] Figure 2 It is a perspective structural schematic diagram of the wind baffle of the wheel hub assembly according to the embodiment of the present disclosure when the wind baffle is in the first position;

[0028] Figure 3 It is a schematic diagram of the structure of the wind resistance sheet described in the embodiment of the present disclosure.

[0029] Among them, 1. wheel hub; 11. inner ring; 12. spokes; 13. outer ring; 14. hollow area; 15. first magnet; 2. guide groove; 3. wind baffle; 31. second magnet; 32. mounting hole. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0032] Reference Figures 1 to 3 As shown, an embodiment of the present disclosure provides a hub assembly, comprising: a hub 1, having a hollow area 14; a guide groove 2, which is arranged on the hub 1 and is located on a side of the hollow area 14 away from the center of the hub 1, and extends along the circumference of the hub 1; a wind resistance piece 3, one end of which is slidably connected to the guide groove 2, and the other end of which is rotatably connected to the hub 1; a first magnet 15 is provided on the hub 1, and a second magnet 31 is provided on the wind resistance piece 3, and the first magnet 15 and the second magnet 31 are arranged opposite to each other in the circumference of the hub 1 and repel each other; the wind resistance piece 3 can slide between a first position on the guide groove 2 exposing the hollow area 14 and a second position covering at least a part of the hollow area 14.

[0033] Specifically, the wheel hub 1 can be selected as a disc structure, the center of the wheel hub 1 is the center of the disc structure, and a through hole is provided on the wheel hub 1 along the axial direction of the wheel hub 1 as a hollow area 14, so that the braking system of the wheel can dissipate heat through the hollow area 14; along the radial direction of the wheel hub 1, the area of ​​the wheel hub 1 located on the side of the hollow area 14 away from the center of the wheel hub 1 is used to install the guide groove 2, and one end of the wind resistance piece 3 can be selected to be slidingly connected with the guide groove 2, and the other end extends toward the center of the wheel hub 1, and the end of the wind resistance piece 3 away from the guide groove 2 is rotatably connected with the area on the side of the wheel hub 1 located on the hollow area 14 close to the center of the wheel hub 1, so that when the wind resistance piece 3 rotates relative to the wheel hub 1, the wind resistance piece 3 slides in the guide groove 2 at the same time, so that the wind resistance piece 3 can cover or expose the hollow area 14.

[0034] The above-mentioned wind resistance piece 3 can be selected as a rectangular or elliptical sheet structure. A rotating shaft is set at one end of the wind resistance piece 3, and the rotating shaft is rotatably connected to the wheel hub 1. The edge of the other end is an arc surface. The guide groove 2 can be selected as an arc groove. The guide groove 2 extends along the circumference of the wheel hub 1. The arc surface is inserted into the guide groove 2, so that when the wind resistance piece 3 rotates relative to the wheel hub 1, the arc surface slides in the guide groove 2.

[0035] The two ends of the guide groove 2 can be selected as closed ends, and the first position and the second position on the guide groove 2 can be selected as the two ends of the guide groove 2. When the wind baffle 3 moves to the two ends of the guide groove 2, it is limited so that the wind baffle 3 cannot continue to move, and the wind baffle 3 is prevented from escaping from the guide groove 2. Of course, two baffles can also be set in the guide groove 2, and the first position and the second position are the positions of the two baffles respectively. When the wind baffle 3 moves to the baffle, the baffle limits the movement of the wind baffle 3, so that the wind baffle 3 remains in a position in contact with the baffle. The first position can be selected to be set on one side of the second position in the direction of wheel rotation when the vehicle is moving forward, that is, when the vehicle is moving forward, the wheel rotates from the second position toward the first position; when the vehicle is moving forward, the wheel rotation can move the wind baffle 3 from the first position toward the second position.

[0036] The above-mentioned wind resistance piece 3 is rotatably set on the wheel hub 1, and the wind resistance piece 3 rotates with the wheel hub 1. When the wheel hub 1 accelerates, the wind resistance piece 3 rotates slower than the rotation speed of the wheel hub 1 due to inertia, so that the wind resistance piece 3 moves relative to the wheel hub 1 from the first position to the second position.

[0037] The center of gravity of the above-mentioned wind resistance sheet 3 and the rotation connection point between the wind resistance sheet 3 and the wheel hub 1 are arranged at intervals in the circumferential direction of the wheel hub 1, so that the centrifugal force generated by the rotation of the wheel hub 1 on the wind resistance sheet 3 will push the wind resistance sheet 3 to move in the direction from the first position to the second position in the circumferential direction of the wheel hub 1. The faster the rotation speed of the wheel hub 1, the greater the centrifugal force. Therefore, when the rotation speed of the wheel hub 1 is relatively high, the centrifugal force of the wheel hub 1 can enable the wind resistance sheet 3 to overcome the magnetic repulsion between the first magnet 15 and the second magnet 31 and move to the second position. When the rotation speed of the wheel hub 1 is relatively low, the centrifugal force of the wheel hub 1 cannot enable the wind resistance sheet 3 to overcome the magnetic repulsion between the first magnet 15 and the second magnet 31, and the wind resistance sheet 3 is located at the first position at this time.

[0038] When the above-mentioned wind resistance piece 3 is in the first position, the projection of the wind resistance piece 3 in the axial direction of the wheel hub 1 can be selected to be completely offset from the hollow area 14, so that the hollow area 14 can be fully exposed. At this time, the braking system of the wheel can fully dissipate heat through the hollow area 14; when the wind resistance piece 3 is in the second position, the projection of the wind resistance piece 3 in the axial direction of the wheel hub 1 can be selected to overlap with half of the hollow area 14. Of course, the projection of the wind resistance piece 3 in the axial direction of the wheel hub 1 can also be selected to completely overlap with the hollow area 14, as long as the wind resistance piece 3 in the second position can shield the hollow area 14, thereby reducing the area of ​​the hollow area 14 that can pass the gas, so as to reduce the wind resistance when the wheel hub 1 rotates.

[0039] The above-mentioned first magnet 15 can be installed on the wheel hub 1 using bolts, and the second magnet 31 can be installed on the wind resistance piece 3 using bolts. Of course, the first magnet 15 can also be glued to the wheel hub 1 using glue, and the second magnet 31 can be glued to the wind resistance piece 3 using glue, so that the first magnet 15 is installed on the wheel hub 1, and the second magnet 31 is installed on the wind resistance piece 3.

[0040] The above-mentioned hub 1 can selectively include an inner ring 11, an outer ring 13 and a plurality of spokes 12, the inner ring 11 is arranged on the inner side of the outer ring 13, the spokes 12 are connected between the inner ring 11 and the outer ring 13, the plurality of spokes 12 are arranged at intervals along the circumference of the inner ring 11, and a hollow area 14 is formed between two adjacent spokes 12; wherein the first magnet 15 can selectively be arranged on the outer ring 13, and the second magnet 31 can selectively be arranged at a position of the wind resistance piece 3 close to the outer ring 13. Of course, the first magnet 15 can also be selected to be arranged on the spoke 12, and the second magnet 31 can be arranged in the middle of the wind resistance piece 3, so that the first magnet 15 and the second magnet 31 are arranged relatively to each other in the circumferential direction of the hub 1, or it is not limited to the first magnet 15 being arranged on the inner ring 11 and the second magnet 31 being arranged at a position of the wind resistance piece 3 close to the inner ring 11. It is sufficient as long as the first magnet 15 and the second magnet 31 can be arranged opposite to each other in the circumferential direction of the hub 1 so that the repulsive force between the first magnet 15 and the second magnet 31 can drive the wind resistance sheet 3 to rotate toward the first position.

[0041] When the wheel hub assembly provided by the embodiment of the present disclosure is used specifically, the wheel hub 1 is assembled into a wheel and then installed on a vehicle. When the wheel rotates at a faster speed, the centrifugal force exerted by the rotation of the wheel hub 1 on the wind resistance sheet 3 is relatively large, and the wind resistance sheet 3 can overcome the repulsive force between the first magnet 15 and the second magnet 31, so that the wind resistance sheet 3 moves from the first position to the second position, so that the wind resistance sheet 3 at least covers a portion of the hollow area 14 to reduce the exposed area of ​​the hollow area 14, thereby reducing the wind resistance of the wheel hub 1; when the wheel rotates at a slower speed, the centrifugal force exerted by the rotation of the wheel hub 1 on the wind resistance sheet 3 is relatively small, so that the wind resistance sheet 3 cannot overcome the repulsive force between the first magnet 15 and the second magnet 31, so that the wind resistance sheet 3 returns to the first position or remains stable at the first position.

[0042] The wheel hub assembly provided by the embodiment of the present disclosure includes: a wheel hub 1, having a hollow area 14; a guide groove 2, which is arranged on the wheel hub 1 and is located on a side of the hollow area 14 away from the center of the wheel hub 1, and extends along the circumference of the wheel hub 1; a wind resistance piece 3, one end of which is slidably connected to the guide groove 2, and the other end is rotatably connected to the wheel hub 1, so that the wind resistance piece 3 can rotate relative to the wheel hub 1; a first magnet 15 is provided on the wheel hub 1, and a second magnet 31 is provided on the wind resistance piece 3, and the first magnet 15 and the second magnet 31 are arranged opposite to each other in the circumference of the wheel hub 1 and repel each other; the centrifugal force of the rotation of the wheel hub 1 enables the wind resistance piece 3 to slide between a first position on the guide groove 2 that exposes the hollow area 14 and a second position that at least partially shields the hollow area 14. When the wheel hub 1 rotates at a faster speed, the centrifugal force is larger, so that the wind resistance piece 3 overcomes the magnetic force of the first magnet 15 and the second magnet 31 and moves to the second position to reduce the wind resistance when the wheel hub 1 rotates quickly. When the wheel hub 1 rotates at a slower speed, the centrifugal force is smaller, or when the wheel hub 1 is stationary, the wind resistance piece 3 is only affected by gravity and magnetic force, so that the wind resistance piece 3 returns to the first position under the action of the magnetic force of the first magnet 15 and the second magnet 31 to ensure the heat dissipation effect of the wheel braking system; compared with using a spring to apply a force to the wheel hub 1 and the wind resistance piece 3, the first magnet 15 and the second magnet 31 apply a force to each other through the magnetic field, and the bumps and vibrations of the wheel will not affect the force effect of the magnetic force between the first magnet 15 and the second magnet 31 on the wind resistance piece 3, thereby improving the stability and safety of the wheel when in use.

[0043] Reference Figure 1 and Figure 2 As shown, in some embodiments, the hub 1 includes an inner ring 11, an outer ring 13 and a plurality of spokes 12, the inner ring 11 is arranged on the inner side of the outer ring 13, the spokes 12 are connected between the inner ring 11 and the outer ring 13, the plurality of spokes 12 are arranged at intervals along the circumference of the inner ring 11, a hollow area 14 is formed between two adjacent spokes 12, the guide groove 2 is connected to the outer ring 13, one end of the wind baffle 3 is rotatably connected to the inner ring 11, and the other end extends to the outer ring 13 to be slidably connected to the guide groove 2. In this way, the wind baffle 3 is rotatably arranged on the inner ring 11, and the guide groove 2 is arranged on the outer ring 13, so that the wind baffle 3 can be rotated relative to the inner ring 11 to cover or expose the hollow area 14 between the inner ring 11 and the outer ring 13, and the wind baffle 3 is arranged opposite to the spokes 12 in the axial direction of the hub 1 in the first position, so that the spokes 12 cover the wind baffle 3 in the axial direction of the hub 1, thereby improving the aesthetics of the hub 1.

[0044] Specifically, the inner ring 11 is a disc structure, the outer ring 13 is an annular structure, the spoke 12 is a cylindrical structure, the inner ring 11 is inside the outer ring 13, and the inner ring 11 and the outer ring 13 are coaxially arranged, the spoke 12 is arranged between the inner ring 11 and the outer ring 13, and the two ends of the spoke 12 are respectively connected to the inner ring 11 and the outer ring 13; multiple spokes 12 are arranged at intervals along the circumference of the inner ring 11, and the space between adjacent spokes 12 is the hollow area 14.

[0045] The above-mentioned guide groove 2 can be selectively connected to the outer ring 13 by bolts, and of course the guide groove 2 can also be glued to the outer ring 13 by glue. A rotating column extending along the axial direction of the hub 1 can be selectively provided on the inner ring 11, and a mounting hole 32 is provided at the end of the wind resistance sheet 3. The rotating column is inserted into the mounting hole 32 so that the wind resistance sheet 3 can rotate around the rotating column, thereby rotatably connecting the wind resistance sheet 3 to the inner ring 11. Of course, the wind resistance sheet 3 can also be rotatably connected to the inner ring 11 by bolts.

[0046] The above-mentioned guide groove 2 is on the outer ring 13, one end of the wind deflector 3 is rotatably connected to the inner ring 11, and the other end is slidably connected to the guide groove 2, so that the wind deflector 3 extends in the radial direction of the wheel hub 1, so that when the wind deflector 3 is in the second position, the middle area of ​​the wind deflector 3 can cover the hollow area 14; when the wind deflector 3 is in the first position, the wind deflector 3 is arranged opposite to the spoke 12 in the axial direction of the wheel hub 1, so that the wind deflector 3 reveals the hollow area 14, and the spoke 12 can cover the wind deflector 3.

[0047] Reference Figure 2 As shown, in some embodiments, the first magnet 15 is arranged on the outer ring 13, and the second magnet 31 is arranged at one end of the wind deflector 3 close to the outer ring 13, so that the repulsive force between the first magnet 15 and the second magnet 31 drives the wind deflector 3 to move toward the first position. In this way, the first magnet 15 and the second magnet 31 are both located at the outer ring 13, and the repulsive force of the first magnet 15 on the second magnet 31 has a large torque when the wind deflector 3 rotates, so that the wind deflector 3 can be driven to move toward the first position even when the repulsive force applied by the first magnet 15 to the second magnet 31 is small. The first magnet 15 and the second magnet 31 with small magnetic force can be used on the wheel hub assembly to drive the wind deflector 3 to move toward the first position, and the inner ring 11 is used to connect with the axle of the vehicle. The installation space on the inner ring 11 is limited. The first magnet 15 is arranged on the outer ring 13 to avoid the axle, which improves the convenience of installing the first magnet 15 on the wheel hub 1.

[0048] Specifically, the first magnet 15 can be selected to be on the outer ring 13, and the second magnet 31 can be arranged in the radial direction of the hub 1 at the end of the wind baffle 3 away from the center of the hub 1, so that the first magnet 15 and the second magnet 31 are located at positions opposite to the outer ring 13 in the circumferential direction of the hub 1. The second magnet 31 can be selected to be located inside the guide groove 2 on the wind baffle 3, and of course, the second magnet 31 can also be selected to be located outside the guide groove 2.

[0049] The above-mentioned first magnet 15 can be selectively arranged on the outer ring 13, and the first magnet 15 and the guide groove 2 are spaced along the circumferential direction of the wheel hub 1, and the first magnet 15 is arranged on the side of the guide groove 2 along the direction from the first position to the second position, so that the second magnet 31 on the wind baffle 3 can repel each other with the first magnet 15 in the circumferential direction of the wheel hub 1, so that the repulsive force between the first magnet 15 and the second magnet 31 drives the wind baffle 3 to rotate toward the first position, so that when the wheel hub 1 stops rotating, the wind baffle 3 can remain in the first position under the repulsive force of the first magnet 15 and the second magnet 31.

[0050] Of course, it is also possible to choose to set the first magnet 15 at one end of the guide groove 2 close to the second position, and set the second magnet 31 at one end of the wind resistance piece 3 located in the guide groove 2, so that the first magnet 15 and the second magnet 31 can repel each other in the circumferential direction of the hub 1, so that the repulsive force between the first magnet 15 and the second magnet 31 drives the wind resistance piece 3 to rotate toward the first position.

[0051] Reference Figure 1 and Figure 2 As shown, in some embodiments, a sliding block is arranged at one end of the wind resistance piece 3 close to the outer ring 13, the sliding block is slidably connected with the guide groove 2, and the second magnet 31 is arranged on the sliding block. In this way, the wind resistance piece 3 rotates to make the sliding block slide in the guide groove 2, so that the guide groove 2 has a limiting effect on the sliding direction of the sliding block, and the sliding block is inserted into the guide groove 2 to make the wind resistance piece 3 and the guide groove 2 slidably connected, which is convenient for the sliding connection operation of the wind resistance piece 3 and the guide groove 2; in the extension direction of the guide groove 2, the first magnet 15 and the second magnet 31 can be arranged relative to each other, so that when the sliding block slides in the guide groove 2, the repulsive magnetic force between the second magnet 31 and the first magnet 15 can drive the sliding block to slide in the guide groove 2.

[0052] Specifically, the notch of the guide groove 2 can be selectively set along the radial direction of the wheel hub 1 on the side of the guide groove 2 facing the inner ring 11, and a sliding block is set on the end of the wind resistance sheet 3 close to the guide groove 2 in the radial direction of the wheel hub 1, and the sliding block on the wind resistance sheet 3 is inserted into the guide groove 2 in the radial direction of the wheel hub 1. When the wind resistance sheet 3 rotates relative to the wheel hub 1, the sliding block slides along the guide groove 2; of course, it is also possible to choose to set a sliding block on a side surface of the wind resistance sheet 3 facing the wheel hub 1 in the axial direction of the wheel hub 1, and the notch of the guide groove 2 is located on the side away from the wheel hub 1 in the axial direction of the wheel hub 1 (that is, the notch of the guide groove 2 is set in the axial direction of the wheel hub 1 facing the sliding block of the wind resistance sheet 3), the wind resistance sheet 3 is rotatably connected to the inner ring 11, and the sliding block of the wind resistance sheet 3 is inserted into the guide groove 2 in the axial direction of the wheel hub 1.

[0053] The above-mentioned sliding block can be provided with screw holes, and the second magnet 31 can be installed on the sliding block with bolts. Of course, the second magnet 31 can also be glued to the sliding block with glue. The first magnet 15 can be provided at one end of the guide groove 2 close to the second position, so that when the sliding block slides in the guide groove 2, the first magnet 15 and the second magnet 31 are arranged relative to each other in the guide groove 2 and repel each other. The second magnet 31 can be provided on the side of the sliding block facing the first magnet 15 along the extension direction of the guide groove 2. Of course, the second magnet 31 can also be provided on the side of the sliding block facing away from the first magnet 15 along the extension direction of the guide groove 2, as long as the second magnet 31 can generate a magnetic force that repels each other along the circumferential direction of the hub 1 with the first magnet 15 on the sliding block.

[0054] Reference Figure 2 and Figure 3 As shown, in some embodiments, a rotating shaft is provided at one end of the wind resistance sheet 3 close to the inner ring 11, and the wind resistance sheet 3 is rotatably connected to the inner ring 11 via the rotating shaft. With such a configuration, the operation of rotatably connecting the rotating shaft to the inner ring 11 or the rotating shaft to the wind resistance sheet 3 is simple, which can improve the convenience of rotatably connecting the wind resistance sheet 3 to the inner ring 11; and the rotating shaft can also absorb the vibration generated by the wheel hub 1, reducing the vibration of the wind resistance sheet 3 when the wheel hub 1 vibrates.

[0055] Specifically, one end of the wind resistance piece 3 close to the inner ring 11 can be provided with a mounting hole 32, the rotating shaft can be a cylindrical shaft, a bearing can be provided in the mounting hole 32, the rotating shaft is connected to the bearing, so that the rotating shaft can rotate on the wind resistance piece 3, and the rotating shaft is fixedly connected to the inner ring 11, so that the wind resistance piece 3 can be rotated relative to the wheel hub 1. Of course, one end of the wind resistance piece 3 close to the inner ring 11 can be fixedly connected to a column structure as the rotating shaft, a bearing is provided on the inner ring 11, and the rotating shaft is rotatably connected to the bearing on the inner ring 11, so that when the rotating shaft rotates relative to the inner ring 11, it can drive the wind resistance piece 3 to rotate relative to the inner ring 11.

[0056] Reference Figure 2 and Figure 3As shown, in some embodiments, the rotational connection point between the wind deflector 3 and the wheel hub 1 is a rotational connection point, and when the wind deflector 3 is in the first position, along the circumference of the wheel hub 1, the center of gravity of the wind deflector 3 and the rotational connection point are spaced apart along the circumference of the wheel hub 1. Such a configuration ensures that the centrifugal force acting on the wind deflector 3 when the wheel hub 1 rotates has the effect of driving the wind deflector 3 to move toward the second position, so that when the wheel hub 1 rotates, the wind deflector 3 can be driven to rotate from the first position toward the second position.

[0057] Specifically, the center of gravity refers to the point of action of the resultant force of the earth's gravity on every tiny part of an object, that is, the center of gravity of the wind resistance sheet 3 is the point of action of the resultant force of the wind resistance sheet 3's own gravity on the wind resistance sheet 3. When the wind resistance sheet 3 is in the first position, the center of gravity of the wind resistance sheet 3 and the rotation connection point between the wind resistance sheet 3 and the wheel hub 1 are arranged at an interval, so that the centrifugal force formed on the wind resistance sheet 3 when the wheel hub 1 rotates and the center of gravity of the wind resistance sheet 3 and the rotation connection point between the wind resistance sheet 3 and the wheel hub 1 are not colinear, that is, the centrifugal force formed by the rotation of the wheel hub 1 can be divided into two components when acting on the wind resistance sheet 3, one component is along the extension direction of the wind resistance sheet 3, and the other component is perpendicular to the extension direction of the wind resistance sheet 3. The effect of the component perpendicular to the extension direction of the wind resistance sheet 3 on the wind resistance sheet 3 is to drive the wind resistance sheet 3 to move toward the second position.

[0058] Reference Figure 1 and Figure 2 As shown, in some embodiments, the area of ​​the wind deflector 3 is smaller than the area of ​​the hollow area 14, so that when the wind deflector 3 rotates to the second position, the wind deflector 3 partially shields the hollow area 14. In this way, as long as the wind deflector 3 partially shields the hollow area 14, the area through which air can pass through the hollow area 14 can be reduced, thereby achieving the effect of reducing the wind resistance of the hub 1. The area of ​​the wind deflector 3 is smaller than the area of ​​the hollow area 14, which can save the material of the wind deflector 3 and reduce the manufacturing cost of the wind deflector 3; and the area of ​​the spoke 12 is limited. When the area of ​​the wind deflector 3 is large, it is difficult for the spoke 12 to completely shield the wind deflector 3, so that the wind deflector 3 corresponding to one hollow area 14 is easy to enter the adjacent hollow area 14 when in the first position, affecting the heat dissipation of the hub 1 at low speed or at rest.

[0059] Specifically, the area of ​​the wind resistance piece 3 projected toward the wheel hub 1 in the axial direction of the wheel hub 1 is the area of ​​the wind resistance piece 3, and the area of ​​the wind resistance piece 3 is smaller than the area of ​​the hollow area 14, that is, when the wind resistance piece 3 is completely located in the hollow area 14 at the second position, the wind resistance piece 3 can only cover part of the hollow area 14.

[0060] Reference Figure 1 and Figure 2As shown, in some embodiments, the area of ​​the wind resistance sheet 3 is greater than or equal to the area of ​​the hollow area 14, so that when the wind resistance sheet 3 rotates to the second position, the wind resistance sheet 3 completely covers the hollow area 14. In this way, when the wind resistance sheet 3 is in the second position, the hollow area 14 on the wheel hub 1 is completely closed, and air cannot pass through the hollow area 14, so that the wheel hub 1 has the best effect of reducing wind resistance.

[0061] Specifically, the area of ​​the wind baffle 3 projected toward the wheel hub 1 in the axial direction of the wheel hub 1 is the area of ​​the wind baffle 3. The area of ​​the wind baffle 3 can be selected to be equal to the area of ​​the hollow area 14, that is, when the wind baffle 3 is completely located in the hollow area 14 at the second position, the wind baffle 3 can cover the entire hollow area 14. Of course, the area of ​​the wind baffle 3 can also be selected to be larger than the area of ​​the hollow area 14, so that when the wind baffle 3 is at the second position, part of the wind baffle 3 is arranged opposite to the spoke 12, and part of the wind baffle 3 covers the entire hollow area 14.

[0062] Reference Figure 1 and Figure 2 As shown, in some embodiments, the size of the spokes 12 along the circumference of the hub 1 is greater than or equal to the size of the wind deflector 3 along the circumference of the hub 1. In this way, when the wind deflector 3 is in the first position, the spokes 12 can completely cover the wind deflector 3 in the first position, so that the spokes 12 have a protective effect on the wind deflector 3, and ensure that the wind deflector 3 does not cover the hollow area 14 when in the first position, ensuring the heat dissipation effect of the hub 1 through the hollow area 14.

[0063] Specifically, the circumferential size of the spoke 12 in the hub 1 is greater than or equal to the circumferential size of the wind deflector 3 in the hub 1, so that when the wind deflector 3 is in the first position, the wind deflector 3 and the spoke 12 are arranged opposite to each other, so that the spoke 12 can completely cover the wind deflector 3 in the first position, so that the spoke 12 can protect the wind deflector 3.

[0064] Reference Figure 1 and Figure 2 As shown, in some embodiments, the number of hollow areas 14 is multiple, the number of guide slots 2 and wind baffles 3 is equal to the number of hollow areas 14, and each hollow area 14 is correspondingly provided with a guide slot 2 and a wind baffle 3. In this way, multiple hollow areas 14 are conducive to the heat dissipation of the brake system connected to the wheel hub assembly, and each hollow area 14 is correspondingly provided with a guide slot 2 and a wind baffle 3, so that when the wheel hub 1 rotates and the centrifugal force can rotate the wind baffle 3 to the second position, the wind baffle 3 corresponding to each hollow area 14 will move to the second position of the corresponding guide slot 2 under the action of the centrifugal force of the wheel hub 1, so that each hollow area 14 is covered by the corresponding wind baffle 3 to reduce the wind resistance of the wheel hub 1, so that the wheel hub assembly with multiple hollow areas 14 can reduce the wind resistance when rotating rapidly.

[0065] Specifically, the wheel hub 1 may be selected to include five spokes 12, so that the five spokes 12 form five hollow areas 14 in the circumferential direction of the wheel hub 1, the number of guide grooves 2 and wind resistance sheet 3 are both five, each hollow area 14 is provided with a guide groove 2 and a wind resistance sheet 3, and the wind resistance sheet 3 provided in each hollow area 14 is rotatably connected to the wheel hub 1 and slidably connected to the guide groove 2, so that the wind resistance sheet 3 provided in each hollow area 14 can rotate relative to the wheel hub 1 to rotate between a first position and a second position; of course, it is also possible to select another number of hollow areas 14 to be provided on the wheel hub 1, and each hollow area 14 is correspondingly provided with a guide groove 2 and a wind resistance sheet 3, so that each hollow area 14 can be shielded by a corresponding wind resistance sheet 3.

[0066] Each of the above-mentioned guide grooves 2 has a first position and a second position. The wind resistance piece 3 moved to the second position can cover the corresponding hollow area 14. When the wheel hub 1 rotates and the centrifugal force can cause the wind resistance piece 3 to rotate to the second position, the wind resistance piece 3 corresponding to each hollow area 14 will move to the second position of the corresponding guide groove 2 under the action of the centrifugal force of the wheel hub 1, so that each hollow area 14 is covered by the corresponding wind resistance piece 3 to reduce the wind resistance of the wheel hub 1.

[0067] The disclosed embodiments further provide a vehicle, comprising a wheel hub assembly as described in any one of the above items.

[0068] By using the wheel hub assembly as described above in a vehicle, when the wheel rotates rapidly, the wind baffle 3 of the wheel hub assembly moves from the first position to the second position under the centrifugal force to shield the hollow area 14; when the wheel rotates at a low speed or is stationary, the wind baffle 3 returns to the first position under the repulsive force of the first magnet 15 and the second magnet 31, so that the hollow area 14 can dissipate heat for the braking system of the wheel; the magnetic force of the first magnet 15 and the second magnet 31 is used to limit the position of the wind baffle 3, the structure of the first magnet 15 and the second magnet 31 is simple, and the vibration of the wheel hub 1 will not affect the magnetic force between the first magnet 15 and the second magnet 31, thereby avoiding the situation where the elastic force of the spring is used to limit the position of the wind baffle 3, and the spring is easily fatigued or damaged during the use of the wheel, thereby affecting the shielding and exposure operation of the wind baffle 3 on the hollow area 14.

[0069] When the wheel hub assembly and the vehicle provided by the embodiment of the present disclosure are used, the wind resistance sheet 3 is installed on the inner ring 11 through the rotating shaft, the guide groove 2 is installed on the outer ring 13, and the sliding block of the wind resistance sheet 3 is slidably connected with the guide groove 2; when the wheel hub 1 is stationary or rotates at a low speed, the repulsive force between the first magnet 15 and the second magnet 31 causes the wind resistance sheet 3 to be located in the first position, and the hollow area 14 is completely exposed so that the brake system of the wheel dissipates heat through the hollow area 14; when the wheel hub 1 rotates rapidly, the centrifugal force of the rotation of the wheel hub 1 causes the wind resistance sheet 3 to overcome the first magnet 15 and the second magnet 31, so that the wind resistance piece 3 at least partially covers the hollow area 14. After the hollow area 14 is covered, the area through which air can pass is reduced, thereby reducing the wind resistance when the hub 1 rotates rapidly; when the hub 1 gradually reduces its rotation speed from rapid rotation, the centrifugal force of the hub 1 gradually decreases, and when the centrifugal force generated by the rotation of the hub 1 on the wind resistance piece 3 in the circumferential direction of the hub 1 is less than the repulsive force of the first magnet 15 and the second magnet 31, the wind resistance piece 3 rotates back to the first position under the repulsive force of the first magnet 15 and the second magnet 31.

[0070] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0071] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wheel hub assembly, characterized in that: include: A wheel hub (1) having a hollow area (14); A guide groove (2) is arranged on the wheel hub (1) and is located on a side of the hollow area (14) away from the center of the wheel hub (1), and extends along the circumference of the wheel hub (1); A wind resistance sheet (3), one end of which is slidably connected to the guide groove (2) and the other end of which is rotationally connected to the wheel hub (1); The wheel hub (1) is provided with a first magnet (15), and the wind resistance sheet (3) is provided with a second magnet (31), wherein the first magnet (15) and the second magnet (31) are arranged opposite to each other in the circumferential direction of the wheel hub (1) and repel each other; The wind resistance sheet (3) is capable of sliding between a first position exposing the hollow area (14) on the guide groove (2) and a second position shielding at least a portion of the hollow area (14).

2. The wheel hub assembly according to claim 1, characterized in that: The wheel hub (1) comprises an inner ring (11), an outer ring (13) and a plurality of spokes (12); the inner ring (11) is arranged on the inner side of the outer ring (13); the spokes (12) are connected between the inner ring (11) and the outer ring (13); the plurality of spokes (12) are arranged at intervals along the circumference of the inner ring (11); a hollow area (14) is formed between two adjacent spokes (12); the guide groove (2) is connected to the outer ring (13); one end of the wind resistance sheet (3) is rotatably connected to the inner ring (11); and the other end extends to the outer ring (13) to be slidably connected to the guide groove (2).

3. The wheel hub assembly according to claim 2, characterized in that: The first magnet (15) is arranged on the outer ring (13), and the second magnet (31) is arranged at one end of the wind resistance piece (3) close to the outer ring (13), so that the repulsive force between the first magnet (15) and the second magnet (31) drives the wind resistance piece (3) to move toward the first position.

4. The wheel hub assembly according to claim 3, characterized in that: A sliding block is arranged at one end of the wind resistance sheet (3) close to the outer ring (13), the sliding block is slidably connected to the guide groove (2), and the second magnet (31) is arranged on the sliding block.

5. The wheel hub assembly according to claim 2, characterized in that: A rotating shaft is provided at one end of the wind resistance sheet (3) close to the inner ring (11), and the wind resistance sheet (3) is rotatably connected to the inner ring (11) via the rotating shaft.

6. The wheel hub assembly according to any one of claims 1 to 5, characterized in that: The rotational connection point between the wind resistance sheet (3) and the wheel hub (1) is a rotational connection point. When the wind resistance sheet (3) is in the first position, along the circumference of the wheel hub (1), the center of gravity of the wind resistance sheet (3) and the rotational connection point are spaced apart along the circumference of the wheel hub (1).

7. The wheel hub assembly according to any one of claims 1 to 5, characterized in that: The area of ​​the wind resistance sheet (3) is smaller than the area of ​​the hollow area (14), so that when the wind resistance sheet (3) is rotated to the second position, the wind resistance sheet (3) partially covers the hollow area (14); and / or, The area of ​​the wind resistance sheet (3) is greater than or equal to the area of ​​the hollow area (14), so that when the wind resistance sheet (3) is rotated to the second position, the wind resistance sheet (3) completely covers the hollow area (14).

8. The wheel hub assembly according to any one of claims 2 to 5, characterized in that: The dimension of the wheel spoke (12) along the circumferential direction of the wheel hub (1) is greater than or equal to the dimension of the wind resistance sheet (3) along the circumferential direction of the wheel hub (1).

9. The wheel hub assembly according to any one of claims 1 to 5, characterized in that: The number of the hollow areas (14) is multiple, the number of the guide grooves (2) and the wind resistance sheets (3) is equal to the number of the hollow areas (14), and each hollow area (14) is correspondingly provided with one guide groove (2) and one wind resistance sheet (3).

10. A vehicle, characterized in that: Comprising the wheel hub assembly according to any one of claims 1 to 9.

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