Paddle device, wheel assembly, and vehicle

Abstract

The application discloses a paddle device, a wheel assembly and a vehicle. The paddle device of the application comprises a shaft component, a paddle base and a paddle, the shaft component is used for detachably mounting on a wheel hub of a vehicle; the paddle base can be power coupled with the shaft component or rotated relative to the shaft component; the paddle is mounted on the paddle base and can be in a folded state or an unfolded state relative to the paddle base, and the paddle can be rotated relative to the paddle base to realize variable pitch. In the paddle device of the application, when the paddle is in the unfolded state, if the paddle base is power coupled with the shaft component, the paddle can rotate with the wheel; if the paddle base and the shaft component are power decoupled, the paddle base can rotate alone, thereby providing driving force for the vehicle when wading or assisting the vehicle to get out of trouble in the case that the vehicle is trapped in mud or the like. When the paddle is in the unfolded state and power decoupled with the shaft component, the paddle can generate electricity under the rotation of external power such as wind power.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more particularly to a propeller device, wheel assembly, and vehicle. Background Technology

[0002] During vehicle use, cars may encounter situations where they cannot get out of trouble, such as wading through water, mud, or sand, or some vehicles need to be designed for amphibious use. In related technologies, the wheel hubs of cars are designed in the shape of paddles. When the car is wading through water, the paddles can rotate synchronously with the drive wheels to provide driving force. However, the paddles cannot flexibly change their angle to adjust the magnitude and direction of the driving force, and this results in greater drag during normal driving, increasing the car's energy consumption. Furthermore, the paddles' efficiency in scouring water inside the tires is low due to tire resistance. In other related technologies, paddles are attached to the wheel hubs, but the angle of these paddles cannot be flexibly adjusted. Some amphibious vehicles use independent paddle drive structures, which are complex and costly in design. Summary of the Invention

[0003] This application provides a propeller assembly, a wheel assembly, and a vehicle.

[0004] The blade device of this application includes a shaft component, a blade holder, and blades. The shaft component is detachably mounted on the wheel hub of a vehicle. The blade holder is mounted on the shaft component and is capable of power coupling with or rotating relative to the shaft component. The blades are mounted on the blade holder and are capable of being in a folded or unfolded state relative to the blade holder. The blades are capable of rotating relative to the blade holder to achieve pitch variation. When the blades are in the folded state, the angle between the radial direction of the blades and a predetermined plane is a first angle, and the angle between the width direction of the blades and the predetermined plane is a second angle. When the blades are in the unfolded state, the angle between the radial direction of the blades and the predetermined plane is a third angle, and the angle between the width direction of the blades and the predetermined plane is a fourth angle. The first angle is smaller than the third angle, the second angle is smaller than the fourth angle, and the third and fourth angles can be adjusted in real time. The predetermined plane is perpendicular to the axial direction of the wheel.

[0005] In the propeller device of this application, when the propeller is in the deployed state, if the propeller base and the shaft component are dynamically coupled, the propeller can rotate with the wheel, thereby providing power for paddling or assisting in getting out of trouble in mud or sand. If the propeller base and the shaft component are dynamically decoupled, the propeller base can rotate independently, thereby providing driving force for the vehicle when wading through water, or assisting the vehicle in getting out of trouble when stuck in mud or sand. When the propeller is in the folded state, the propeller significantly fills the gap between the wheel hub and the axle, reducing wind resistance during vehicle operation, thereby reducing the vehicle's energy consumption.

[0006] In some embodiments, the blade assembly includes a drive mechanism connected to the blade mount, which can drive the blade mount to rotate relative to the shaft component when the blade mount rotates relative to the shaft component. The drive mechanism can also drive the blades to unfold and the base to form any angle or fold.

[0007] In some embodiments, the blade assembly includes a controller connected to the drive mechanism. The controller is configured to control the blades according to a preset program, and to communicate with external devices, and to control the drive mechanism to drive the blade mount or unfold or fold the blades or adjust the blade angle in real time according to instructions from the external devices.

[0008] In some embodiments, the blade assembly includes a switching device connected to the blade mount, wherein when the switching device is open, the blade mount is rotatable relative to the shaft component, and when the switching device is closed, the blade mount is dynamically coupled to the shaft component.

[0009] In some embodiments, the blade assembly includes a generator and an energy storage module. The generator is connected to the blade mount, and the energy storage module is connected to the generator. When the blade mount rotates after being decoupled from the shaft component, the blades enable the generator to generate electricity, and the energy storage module is able to store the electrical energy generated by the generator.

[0010] In some embodiments, the blade assembly includes an electrical connector connected to the energy storage module for supplying power and / or igniting external devices.

[0011] A wheel assembly, comprising:

[0012] Wheel hub; and

[0013] The blade device described in any of the above embodiments is mounted on the wheel hub.

[0014] A vehicle comprising the wheel assembly described in the above embodiments.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0017] Figure 1 This is a plan view of the vehicle according to an embodiment of this application;

[0018] Figure 2 This is a plan view of the wheel assembly according to an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the vertical cross-section of the wheel assembly according to an embodiment of this application;

[0020] Figure 4 This is a side view of another state of the wheel assembly according to an embodiment of this application;

[0021] Figure 5 This is a top view schematic diagram of the propeller seat and a propeller blade according to an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the propeller seat and a propeller blade in a cross-section parallel to the vertical plane of the axle according to an embodiment of this application;

[0023] Figure 7 This is a force diagram of the blade device according to an embodiment of this application;

[0024] Figure 8 This is a schematic diagram illustrating the change process of the reaction force f1' experienced by the blade in the embodiment of this application;

[0025] Figure 9 This is a force diagram of the vehicle according to an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1000-Vehicle, 200-Wheel assembly, 210-Wheel, 100-Blade assembly, 101-Predetermined plane, 10-Shaft component, 20-Blade mount, 21-Spherical connection mechanism, 30-Blade, 40-Drive mechanism, 50-Controller, 60-Switch device, 70-Generator, 80-Energy storage module, 90-Electrical connector. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0029] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0033] Please see Figure 1 This application discloses a wheel assembly 200, which can be used in a vehicle 1000. The vehicle 1000 can be a vehicle powered by fuel, battery, hydrogen energy, natural gas, or any combination of the above energy sources.

[0034] Please see Figure 2 In some embodiments, the wheel assembly 200 includes a wheel hub 210 and a blade assembly 100, the blade assembly 100 being mounted on the wheel hub 210. Specifically, the wheel hub 210 is a component of the vehicle 1000 used to mount the tire, and the wheel hub 210 enables stable tire mounting. The wheel hub 210 can be made of a high-strength material such as aluminum alloy.

[0035] The paddle device 100 is a device that can assist the vehicle 1000 in wading through water or getting out of trouble when the vehicle 1000 is stuck in mud or sand. When the paddle device 100 rotates, it provides power to the vehicle 1000, thereby enabling the vehicle 1000 to wade through water or get out of trouble.

[0036] Please see Figure 3 and Figure 4 In some embodiments, the blade assembly 100 includes a shaft member 10, a blade holder 20, and blades 30. The shaft member 10 is detachably mounted on a wheel hub 210 of a vehicle 1000; the blade holder 20 is mounted on the shaft member 10 and is power-coupled to or rotatable relative to the shaft member 10; the blades 30 are mounted on the blade holder 20 and are folded or unfolded relative to the blade holder 20. The blades 30 are rotatable relative to the blade holder 20 to achieve pitch variation, such as... Figures 3-5As shown, when the blade 30 is in the folded state, the angle between the radial direction of the blade 30 and the predetermined plane 101 is the first angle α1. The angle between the width direction of the blade 30 and the predetermined plane 101 is the second angle α2. When the blade 30 is in the unfolded state, the angle between the radial direction of the blade 30 and the predetermined plane 101 is the third angle α3, and the angle between the width direction of the blade 30 and the predetermined plane 101 is the fourth angle α4. The first angle α1 is smaller than the third angle α3, the second angle α2 is smaller than the fourth angle α4, and the third angle α3 and the fourth angle α4 can be adjusted in real time. The predetermined plane 101 is perpendicular to the axial direction of the wheel hub 210.

[0037] In the propeller device 100 of this application embodiment, when the propeller 30 is in the deployed state, if the propeller base 20 is dynamically coupled to the shaft component 10, the propeller 30 can rotate with the wheel hub 210. If the propeller base 20 is dynamically decoupled from the shaft component 10, the propeller base 20 can rotate independently to cope with the situation where the wheel has no power, thereby providing driving force for the vehicle 1000 when wading through water, assisting the vehicle in wading or getting out of trouble. When the propeller 30 is in the folded state, the propeller 30 largely fills the gaps in the spokes of the wheel hub 210, which can reduce the resistance formed during the driving of the vehicle 1000, thus reducing the energy consumption of the vehicle 1000.

[0038] Specifically, the shaft component 10 is the part that connects the blade assembly 100 to the wheel hub 210. The shaft component 10 can be installed on the wheel hub 210 of the vehicle 1000 after the vehicle 1000 leaves the factory, or it can be installed on the wheel hub 210 of the vehicle 1000 before the vehicle 1000 leaves the factory. The shaft component 10 can be detachably connected to the wheel hub 210 by means of a locking mechanism or the like. In other words, when the blade assembly 100 is not in use, it can be separated from the wheel hub 210 by removing the shaft component 10. For example, the shaft component 10 can be mounted on the spokes of the wheel hub 210. The shaft component 10 can have a connecting shaft, and the blade holder 20 is connected to the connecting shaft. The blade holder 20 can rotate relative to the connecting shaft, or it can be fixed to the connecting shaft.

[0039] The propeller mount 20 is a component used to mount the propeller blade 30. When the propeller mount 20 is dynamically coupled to the shaft component 10, the propeller mount 20 is fixedly connected to the shaft component 10. The propeller mount 20 can rotate with the wheel hub 210, or in other words, the propeller mount 20 can rotate synchronously with the wheel hub 210, thereby causing the propeller blade 30 to rotate synchronously with the wheel hub 210. It should be noted that the rotation center axis of the propeller blade 30 is in the same direction as the axial direction of the wheel hub 210. For example, the rotation center axis of the propeller blade 30 coincides with the rotation center axis of the wheel hub 210.

[0040] When the propeller base 20 is disconnected from the shaft component 10, the propeller base 20 can rotate relative to the shaft component 10, thereby allowing the propeller blade 30 to rotate relative to the wheel hub 210. In this embodiment, the radial direction of the propeller blade 30 is the same as the radial direction of the propeller disk formed by the propeller blade 30, and the radial direction of the propeller blade 30 is also the length direction when the propeller blade 30 is folded.

[0041] In this embodiment, the propeller holder 20 can be connected to the propeller blade 30 via a ball joint. For example, the propeller holder 20 can be provided with a spherical connecting mechanism 21, and one end of the propeller blade 30 can be provided with a spherical groove (not shown). The spherical connecting mechanism 21 can be movably disposed in the spherical groove.

[0042] The blade 30 can rotate relative to the propeller base 20 to achieve variable pitch. In other words, the blade 30 is a variable pitch propeller. The blade 30 can change the blade angle (e.g., the second angle α2 and the fourth angle α4) according to the scene in which the vehicle 1000 is located, thereby changing the force applied to the vehicle 1000, so that the vehicle 1000 moves in a predetermined direction, and the vehicle 1000 can get out of trouble in the scene.

[0043] For example, a linkage mechanism can be used to rotate the blade 30 and the blade holder 20, thereby achieving pitch variation. It should be noted that the mechanism for achieving pitch variation of the blade 30 is a technology well known to those skilled in the art, and will not be described in detail here.

[0044] In this embodiment of the application, the angle between the width direction of the blade 30 and the predetermined plane 101 can be 0°-180°, or in other words, the angle between the width direction of the blade 30 and the predetermined plane 101 can be arbitrarily adjusted between 0°-180°. The second angle α2 and / or the fourth angle α4 can be 0°-180°.

[0045] The angle between the radial direction of the blade 30 and the predetermined plane 101 can be 0°-30°, or in other words, the angle between the radial direction of the blade 30 and the predetermined plane 101 can be arbitrarily adjusted between 0°-30°. The first angle α1 and / or the third angle α3 can be 0°-30°.

[0046] like Figure 5 As shown, the blade 30 can rotate along the arrow in the figure, thereby changing the angle between the width direction of the blade 30 and the predetermined plane 101. Figure 6 As shown, the blade 30 can rotate along the arrow in the figure, thereby changing the angle between the radial direction of the blade 30 and the predetermined plane 101.

[0047] In this embodiment, the predetermined plane 101 is perpendicular to the axial direction of the wheel hub 210. In the vehicle 1000 coordinate system, the predetermined plane 101 is the XZ plane of the vehicle 1000.

[0048] In this embodiment of the application, the blade device 100 can be installed on the drive wheel of the vehicle 1000 or on the non-drive wheel.

[0049] It should be noted that the propeller device 100 of the present application embodiment is particularly suitable for use by vehicle 1000 in water wading scenarios. The propeller device 100 can provide power to vehicle 1000 when wading, so that vehicle 1000 can drive, turn, etc. in water.

[0050] It should be noted that when the blade 30 is in the folded state, the blade 30 can be fully embedded in the wheel hub 210, so that the blade 30 reduces the drag of the vehicle 1000 when the vehicle 1000 is in motion.

[0051] Please see Figure 7 In one example, the propeller device 100 is installed on the drive wheel of the vehicle 1000. When the vehicle 1000 is in a water-wading scenario, if the propeller 30 is in the deployed state, the propeller 30 rotates along with the drive wheel as it moves forward. At this time, the force exerted by the propeller 30 on the water flow is f1. According to the principle of interaction of forces, the water flow gives the propeller 30 a reaction force f1'. The two are equal, that is, f1 = f1'.

[0052] Because the blade 30 is directionally adjustable, the magnitude and direction of the force f1 exerted by the blade 30 on the water flow change as the blade 30 rotates. Therefore, the magnitude and direction of the reaction force f1' also change. Please refer to [link / reference]. Figure 8 When the drive wheel moves forward, the direction and magnitude of the reaction force f1' change as the blade 30 rotates 180 degrees in the first direction, as shown in a→b→c. When the drive wheel moves backward, the direction and magnitude of the reaction force f1' change as shown in c→d→a as the blade 30 rotates 180 degrees in the second direction opposite to the first direction. It can be seen that a single blade 30, in conjunction with the drive wheel, can generate a 360-degree driving force, which enables the vehicle 1000 to travel in the predetermined direction.

[0053] Please see Figure 2 and Figure 9 In another example, the front wheels of vehicle 1000 are steering wheels, or in other words, the front wheels of vehicle 1000 can rotate. Both the front and rear wheels of vehicle 1000 are equipped with propeller devices 100. When vehicle 1000 is in a wading scenario, if the propeller blades 30 can rotate relative to the wheel hubs 210, the reaction forces of the water flow on vehicle 1000 are as follows: When the front wheels of vehicle 1000 deflect, the water resistance experienced by the two steering wheels is as follows: In addition, during the vehicle's 1000-kilometer journey, the resistance experienced by the vehicle body, excluding the steering wheels, is... Due to the force acting on vehicle 1000 There are 7 vectors, among which Its size can be manually adjusted, and its direction can be adjusted 360 degrees. The direction can be controlled in a limited way. According to the principle of force composition, the combined force on vehicle 1000 can be directed in any direction. Therefore, vehicle 1000 can achieve 360-degree omnidirectional adjustment. In other words, the magnitude and direction of one or more forces can be adjusted, thereby making very flexible adjustments to the direction and power of vehicle 1000, improving the adaptability of vehicle 1000 in various scenarios.

[0054] As can be seen from the above, in some embodiments, each wheel hub 210 of the vehicle 1000 is equipped with a blade device 100, which is capable of vector control.

[0055] Please see Figure 3 In some embodiments, the propeller assembly 100 includes a drive mechanism 40 connected to the propeller holder 20. When the propeller holder 20 rotates relative to the shaft member 10, the drive mechanism 40 can drive the propeller holder 20 to rotate relative to the wheel hub 210. The drive mechanism 40 can also drive the propeller blades 30 to unfold or fold. In this way, the drive mechanism 40 can drive the propeller blades 30 to rotate relative to the wheel hub 210, thereby providing driving force for the vehicle 1000 to wade through water, get out of trouble, and achieve different functions.

[0056] For example, when the blade assembly 100 is installed on the non-drive wheels of the vehicle 1000, the drive mechanism 40 can drive the blade mount 20 and the blade 30, thereby providing auxiliary power to the vehicle 1000 to help it wade through water and get out of trouble. As another example, when there is dust or water on the wheel hub 210 or brake disc, the drive mechanism 40 can drive the blade 30 to rotate, thereby creating an airflow to clean the wheel hub 210 or brake disc.

[0057] In some embodiments, the drive mechanism 40 includes an electromagnetic device, the stator of which can be mounted on the shaft component 10, and the rotor of which can be mounted on the propeller mount 20. With the cooperation of the stator and rotor of the electromagnetic device, the electromagnetic device can drive the propeller mount 20 to rotate relative to the shaft component 10, thereby causing the propeller mount 20 and the propeller blade 30 to rotate relative to the wheel hub 210.

[0058] Of course, in other embodiments, the drive mechanism 40 can be omitted. In this case, the blade 30 can rotate with the wheel hub 210 to help the vehicle 1000 wade through water and get out of trouble.

[0059] Please see Figure 3In some embodiments, the blade assembly 100 includes a controller 50 connected to the drive mechanism 40. The controller 50 is used to operate the blades 30 according to a preset program, and is also capable of communicating with external devices. It can control the drive mechanism 40 to drive the blade mount 20, or to unfold, fold, or adjust the blade angle of the blades 30 according to the preset program or instructions from the external device. Thus, external devices can remotely control the drive mechanism 40 through the controller 50, facilitating the use of the blade assembly 100.

[0060] In some implementations, external devices include, for example, mobile phones, in-vehicle infotainment systems, tablets, smartwatches, AR / VR devices, etc. These external devices can send control commands to the controller 50 via an application, thereby enabling the controller to control the propeller 30 to rotate, unfold, fold, or adjust the propeller angle in real time, etc., according to the control commands.

[0061] Please see Figure 3 In some embodiments, the propeller assembly 100 includes a switching device 60 connected to the propeller holder 20. When the switching device 60 is open, the propeller holder 20 can rotate relative to the shaft member 10; when the switching device 60 is closed, the propeller holder 20 can be dynamically coupled to the shaft member 10. Thus, the switching device 60 makes it easier to control the dynamic coupling or disconnection between the propeller holder 20 and the shaft member 10. Specifically, the switching device 60 is, for example, an electromagnetic switch, which is a control electrical component that can control the actuation of related parts.

[0062] In one example, the propeller holder 20 and the shaft component 10 are connected by a slider mounted on the propeller holder 20. When the slider is inserted from the propeller holder 20 into the shaft component 10, the propeller holder 20 and the shaft component 10 are dynamically coupled. When the slider is disengaged from the shaft component 10, the propeller holder 20 can rotate relative to the shaft component 10. The switching device 60 can control the actuation of the actuator connected to the slider, thereby controlling the movement of the slider, and thus enabling the switching device 60 to dynamically couple or disconnect the propeller holder 20 from the shaft component 10.

[0063] Please see Figure 3 In some embodiments, the blade assembly 100 includes a generator 70 and an energy storage module 80. The generator 70 is connected to the blade mount 20, and the energy storage module 80 is connected to the generator 70. When the blade mount 20 can rotate after being decoupled from the shaft component 10, the blade 30 can enable the generator 70 to generate electricity, and the energy storage module 80 can store the electrical energy generated by the generator 70.

[0064] Thus, when the blade 30 rotates under the action of external forces such as wind, water, or hand cranking, the blade 30 charges the energy storage module 80 through the generator 70, providing a basis for the power application of the vehicle 1000.

[0065] Specifically, the energy storage module 80 can be the power battery of the vehicle 1000, or it can be a battery other than the power battery of the vehicle 1000. The specific use of the energy storage module 80 is not limited here.

[0066] In some embodiments, the paddle assembly 100 includes a power connector 90 connected to the energy storage module 80, which is used to supply power to external devices and / or ignite them. This allows users to conveniently use electricity outdoors. The power connector 90 can be a USB, Type-C, or Lightning connector, which can charge mobile devices such as smartphones; the power connector 90 also includes an ignition connector, which can generate a spark to enable outdoor fire starting.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A blade device, characterized in that, include: A shaft component for detachable mounting to a vehicle wheel hub; A propeller mount is mounted on the shaft component, and the propeller mount is capable of being dynamically coupled to the shaft component or rotating relative to the shaft component; The blade is mounted on the blade seat and can be folded or unfolded relative to the blade seat. The blade can rotate relative to the blade seat to achieve pitch variation. When the blade is folded, the angle between the radial direction of the blade and a predetermined plane is a first angle, and the angle between the width direction of the blade and the predetermined plane is a second angle. When the blade is unfolded, the angle between the radial direction of the blade and the predetermined plane is a third angle, and the angle between the width direction of the blade and the predetermined plane is a fourth angle. The first angle is smaller than the third angle, and the second angle is smaller than the fourth angle. The third and fourth angles can be adjusted in real time. The predetermined plane is perpendicular to the axis of the wheel. The blade assembly includes a generator and an energy storage module. The generator is connected to the blade mount, and the energy storage module is connected to the generator. When the blade mount rotates after being decoupled from the shaft component, the blades enable the generator to generate electricity, and the energy storage module is able to store the electrical energy generated by the generator.

2. The blade device according to claim 1, characterized in that, The blade assembly includes a drive mechanism connected to the blade holder. When the blade holder rotates relative to the shaft component, the drive mechanism can drive the blade holder to rotate relative to the shaft component. The drive mechanism can also drive the blade to unfold, fold, or form any angle relative to the blade holder.

3. The blade device according to claim 2, characterized in that, The blade assembly includes a controller connected to the drive mechanism. The controller is used to operate the blades according to a preset program, and can communicate with external devices to control the drive mechanism to drive the blade mount or unfold or fold the blades or adjust the blade angle in real time according to the instructions of the external devices.

4. The blade device according to claim 1, characterized in that, The blade assembly includes a switching device connected to the blade holder. When the switching device is open, the blade holder can rotate relative to the shaft component. When the switching device is closed, the blade holder can be dynamically coupled to the shaft component.

5. The blade device according to claim 1, characterized in that, The blade assembly includes an electrical connector connected to the energy storage module, the electrical connector being used to supply power and / or ignite external devices.

6. A wheel assembly, characterized in that, include: Wheel hub; and The blade assembly according to any one of claims 1-5, wherein the blade assembly is mounted on the wheel hub.

7. A vehicle, characterized in that, Includes the wheel assembly as described in claim 6.

8. The vehicle according to claim 7, characterized in that, Each wheel hub of the vehicle is equipped with a blade device, which is capable of vector control.

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