Hub motor assembly, spare tire assembly and vehicle

Abstract

The invention discloses a hub motor assembly, a spare tire assembly and a vehicle, the hub motor assembly comprises a stator, a rotor, a hub and paddles, and the stator is suitable for being connected with a vehicle body; the rotor is arranged on the inner side of the stator and is suitable for rotating relative to the stator; the hub is connected with the rotor; and the paddles are connected with the rotor. Through the arrangement, the stator drives the rotor to rotate to drive the hub and the blades to rotate at the same time, the rotor is arranged on the inner side of the stator, the occupied space is small, water flow can flow to the blades through gaps between the spokes, the spokes and the blades can stir the water flow, the flow resistance can be reduced, and the problem that the flow resistance is large when a vehicle runs on water is solved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a hub motor assembly, a spare tire assembly, and a vehicle. Background Technology

[0002] With the development of technology, amphibious vehicles have begun to come into people's view. They have good passability on both land and water and are gradually being used.

[0003] Current amphibious vehicles that achieve water travel have a large structural footprint and significant water flow resistance. Summary of the Invention

[0004] The purpose of this application is to provide a hub motor assembly, a spare tire assembly, and a vehicle to solve the problem of large water flow resistance caused by large space occupation.

[0005] To achieve the objectives of this application, the following technical solution is provided:

[0006] In a first aspect, this application provides a hub motor assembly, comprising:

[0007] The stator is suitable for connection to the vehicle body;

[0008] A rotor is disposed inside the stator and is adapted to rotate relative to the stator.

[0009] The hub is connected to the rotor;

[0010] The blades are connected to the rotor.

[0011] In one embodiment, the blades are disposed inside the rotor.

[0012] In one embodiment, the system further includes a bearing comprising an inner ring and an outer ring, the outer ring being fitted over the inner ring, the inner ring being adapted to be connected to the vehicle body, the outer ring being connected to the wheel hub, the bearing being coaxially arranged with the wheel hub, one end of the blade being connected to the outer ring, and the other end being connected to the rotor.

[0013] In one embodiment, the outer ring is detachably connected to the wheel hub.

[0014] In one embodiment, a support structure is further included, which is connected to the stator and the inner ring and is adapted to be connected to the vehicle body.

[0015] In one embodiment, the support structure includes a support frame and a swing arm, one end of the swing arm is adapted to be rotatably connected to the vehicle body, the support frame is fixedly connected to the other end of the swing arm, and the support frame is fixedly connected to the inner ring and the stator.

[0016] In one embodiment, the hub motor assembly further includes a drive member adapted to be connected and fixed to the vehicle body, one end of the swing arm is connected to the drive member, and the drive member is adapted to drive the swing arm to rotate relative to the vehicle body.

[0017] In one embodiment, there are multiple blades, and the multiple blades are spaced apart circumferentially along the bearing.

[0018] In one embodiment, each of the blades is connected to a rotor.

[0019] In one embodiment, the hub motor assembly further includes a control unit electrically connected to the stator, the control unit being adapted to control the speed and direction of rotation of the rotor relative to the stator.

[0020] Secondly, this application also provides a spare tire assembly, comprising: a spare tire including a wheel and a tire, the wheel including a hub, spokes and a rim, the hub and the rim being concentrically arranged, the spokes connecting the hub and the rim, and the tire being fitted onto the rim; and a hub motor assembly according to any one of the various embodiments of the first aspect, wherein the hub and the rotor are detachably connected.

[0021] In one embodiment, the rim encloses a receiving space, and the bearing, the blade, the rotor, and the stator are all received within the receiving space.

[0022] Thirdly, this application also provides a vehicle including a body and a spare tire assembly as described in any of the second aspects, the spare tire assembly being connected to the body.

[0023] In one embodiment, the vehicle body includes a tailgate, the spare tire assembly is rotatably connected to the tailgate, and the spare tire assembly rotates to switch between a first position and a second position, wherein in the first position the spare tire assembly is close to the tailgate, and in the second position the propeller is located at the bottom of the vehicle body facing towards the center of the earth.

[0024] In one embodiment, the vehicle further includes a rear wheel, the body is connected to the rear wheel, and when the spare tire assembly is in the second position, the spare tire assembly is closer to the center of the earth than the rear wheel.

[0025] In one embodiment, the spare tire assembly is further adapted to be fixed relative to the tailgate at any position between the first position and the second position.

[0026] The hub motor assembly of this application allows the stator to drive the rotor to rotate, which in turn drives the hub and the blades to rotate simultaneously. The rotor is located inside the stator, occupying little space. Water can flow through the gap between the spokes to the blades. Both the spokes and the blades can agitate the water flow, which can reduce flow resistance and solve the problem of high flow resistance when the vehicle is traveling on water. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a cross-sectional view of a spare tire assembly according to one embodiment;

[0029] Figure 2 This is a partial side view of a vehicle in one state according to one embodiment;

[0030] Figure 3 This is a partial side view of a vehicle in another state according to one embodiment;

[0031] Figure 4 This is a rear view of a vehicle according to one embodiment.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1000 - Vehicle, 100 - Spare tire assembly, 200 - Body, 210 - Tailgate, 300 - Rear wheel, A - Axle;

[0034] 10-Support structure, 11-Support frame, 111-First component, 112-Second component, 113-Third component, 12-Swing arm, 121-Cable routing channel;

[0035] 20-Bearing, 21-Inner ring, 211-First center hole, 212-First cylinder, 213-First mounting part, 214-First end face, 215-Second end face, 22-Outer ring, 221-Second cylinder, 222-Second mounting part, 223-Third mounting part, 23-Rolling part;

[0036] 30 - Blade; 40 - Rotor; 50 - Stator;

[0037] 60-Spare tire, 61-Wheel, 611-Hub, 612-Spoke, 613-Rim, 614-Second center bore, 62-Tire;

[0038] 70 - Drive unit; 80 - Mounting bracket. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or it can be in a middle component. When a component is said to be "connected" to another component, it can be directly connected to the other component or it may be in a middle component.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0042] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0043] Please refer to Figure 1 and Figure 2 This application provides a hub motor assembly, including a stator 50, a rotor 40, a hub 611, and blades 30.

[0044] The stator 50 is adapted to be connected to the vehicle body 200; the rotor 40 is disposed inside the stator 50 and is adapted to rotate relative to the stator 50; the hub 611 is connected to the rotor 40; and the blade 30 is connected to the rotor 40.

[0045] The stator 50 drives the rotor 40 to rotate. The rotor 40 is connected to the hub 611 and the blades 30, causing the rotor 40 to drive the hub 611 and the blades 30 to rotate. In water-crossing scenarios, the hub motor assembly starts, and the blades 30 rotate to stir the water, thereby driving the vehicle on water. The specific structure of the stator 50, rotor 40, hub 611, and blades 30 is not limited; any feasible structure is acceptable.

[0046] Therefore, in the hub motor assembly of this application embodiment, the stator 50 drives the rotor 40 to rotate, which can drive the hub 611 and the blade 30 to rotate simultaneously. The rotor 40 is located inside the stator 50, occupying little space. Water can flow through the gap between the spokes 612 to the blade 30. Both the spokes 612 and the blade 30 can agitate the water flow, which can reduce flow resistance and solve the problem of high flow resistance when the vehicle is traveling on water.

[0047] In one embodiment, the blades 30 are disposed inside the rotor 40. This further reduces the space occupied and helps save space.

[0048] In one embodiment, reference Figure 1 The hub motor assembly also includes a bearing 20, which includes an inner ring 21 and an outer ring 22. The outer ring 22 is fitted onto the inner ring 21. The inner ring 21 is adapted to be connected to the vehicle body 200. The outer ring 22 is connected to the hub 611. The bearing 20 and the hub 611 are coaxially arranged. One end of the blade 30 is connected to the outer ring 22, and the other end is connected to the rotor 40.

[0049] Both the inner ring 21 and the outer ring 22 are rotationally symmetric structures, sharing the same axis A. The bearing 20 also includes a rolling element 23, disposed between the inner ring 21 and the outer ring 22. The rolling element 23 can be a ball, a cylinder, or other similar structure. This allows the inner ring 21 and the outer ring 22 to rotate relative to each other along axis A via the rolling element 23. By using the bearing 20 to connect the various components, the resistance to relative rotation can be reduced, further decreasing flow resistance.

[0050] Optionally, the inner ring 21 may have a first central hole 211 that extends axially, the axis A of which coincides with the axis A of the bearing 20. Correspondingly, the hub 611 may have a second central hole 614 that communicates with the first central hole 211. Furthermore, the two may be coaxial. Thus, the first central hole 211 and the second central hole 614 can form a channel for water flow to reduce flow resistance.

[0051] Optionally, the inner ring 21 includes a first cylindrical body 212 and a first mounting portion 213. The first cylindrical body 212 surrounds the first central hole 211, and the first mounting portion 213 is disposed on the outer periphery of the first cylindrical body 212 and can be connected end to end in a ring along the circumference of the first cylindrical body 212. The first mounting portion 213 and the first cylindrical body 212 can be an integral structure or a separate structure, without limitation. The first cylindrical body 212 includes a first end face 214 and a second end face 215 along the axial direction. The first mounting portion 213 is close to the first end face 214 along the axial direction of the first cylindrical body 212. The outer ring 22 is sleeved on the outer periphery of the first cylindrical body 212, and the outer ring 22 is located on the side of the first mounting portion 213 facing the second end face 215 in the direction of axis A.

[0052] Optionally, the outer ring 22 includes a second cylindrical body 221 and a second mounting portion 222. The second cylindrical body 221 is sleeved on the outer periphery of the first cylindrical body 212, and the rolling element is disposed between the first cylindrical body 212 and the second cylindrical body 221. The second cylindrical body 221 is located on one side of the first mounting portion 213 along the axis A, and the second mounting portion 222 is disposed on the end face of the first cylindrical body 212 away from the first mounting portion 213. The second mounting portion 222 can specifically be a groove, a screw hole, a protrusion, or other structures. The second cylindrical body 221 and the second mounting portion 222 can be an integral structure or a separate structure, without limitation. Optionally, the outer ring 22 may also include a third mounting portion 223. The third mounting portion 223 is disposed on the outer periphery of the second cylinder 221 and is axially opposite to the first mounting portion 213 in the bearing 20. The third mounting portion 223 is located at the end of the second cylinder 221 away from the first mounting portion 213. The third mounting portion 223 can also be used to connect with the hub 611 to improve the connection stability when combined with the second mounting portion 222. The third mounting portion 223 may be a ring-shaped structure that is connected end to end around the second cylinder 221, or it may be a plurality of block-shaped structures spaced apart along the circumference of the bearing 20. There is no limitation.

[0053] The second mounting section 222 is connected to the wheel hub 611. The outer ring 22 can be connected to the spare tire 60, thereby integrating the wheel hub motor assembly and the spare tire 60 into the spare tire assembly 100.

[0054] The blade 30 is connected to the outer ring 22 and extends radially along the bearing 20. The blade 30 can be plate-shaped, and its extension direction can be straight, curved, etc., without limitation. Its radial direction along the bearing 20 refers to the approximate extension direction. One end of the blade 30 is connected and fixed to the outer circumferential surface of the second cylinder 221 of the outer ring 22. The two can be an integral structure or a separate structure, without limitation. The blade 30 corresponds to the spokes 612 of the wheel 61 and is spaced apart in the direction of axis A. The spokes 612 can be of the plate type or the bar type. The spokes 612 have gaps between adjacent spokes, which allow water to flow through. The blade 30 can rotate, with the axis of rotation being the axis A of the bearing 20. Water can flow through the gaps in the spokes 612 to the blade 30. The stator 50 drives the rotor 40 to rotate, which in turn drives the hub 611 and the blade 30 to rotate. The rotation of the hub 611 can drive the spokes 612 connected to it to stir the water flow, and the rotation of the blade 30 can also stir the water flow, thus generating the driving force to drive the vehicle in water-wading scenarios.

[0055] The rotor 40 is connected to the end of the blade 30 away from the outer ring 22. The rotor 40 can be a permanent magnet, which can be a single piece or multiple pieces spliced ​​together. One or more permanent magnets can be set on a blade 30. The rotor 40 is used to drive the blade 30 to rotate.

[0056] The stator 50 is located on the side of the rotor 40 away from the blades 30. Specifically, the stator 50 can be a coil; when energized, it generates a magnetic field to drive the rotor 40 to rotate. The method of energizing the stator 50 is not limited in this embodiment; any feasible method is acceptable. The stator 50 may be equipped with a waterproof structure to prevent water from entering the interior. Specific methods of the waterproof structure include covering with an insulating film, providing a waterproof coating, or providing a sealing ring, etc., without limitation.

[0057] Optionally, the outer ring 22 can be detachably connected to the hub 611. The detachable connection method can be snap-fit, screw-fit, etc., without limitation. Among them, the hub motor assembly can be integrated with the spare tire 60 to form a spare tire assembly 100. When the outer ring 22 is connected to the hub 611, the spare tire 60 and the blade 30 can simultaneously agitate the water flow, resulting in low flow resistance. When the spare tire 60 is removed and used, the blade 30 faces the water flow directly without the spare tire 60 obstructing it, which also results in low flow resistance.

[0058] In one embodiment, reference Figure 1 and Figure 2 The hub motor assembly also includes a support structure 10, which is connected to the stator 50 and the inner ring 21 and is adapted to be connected to the vehicle body 200.

[0059] Optionally, the support structure 10 is connected to the side surface of the first mounting portion 213 facing away from the outer ring 22. Alternatively, the support structure 10 may also be connected to the outer peripheral surface of the first mounting portion 213, or the support structure 10 may be connected to both the side surface of the first mounting portion 213 facing away from the outer ring 22 and the outer peripheral surface of the first mounting portion 213.

[0060] The support structure 10 is adapted to be connected to the body 200 of the vehicle 1000. The specific structure of the support structure 10 is not limited; it can be connected to any position on the body 200 of the vehicle 1000, and the connection method can be fixed, sliding, rotating, etc., without limitation. The support structure 10 supports and exposes the blades 30 on the body 200 of the vehicle 1000, enabling the blades 30 to agitate the water flow to propel the vehicle 1000 forward or backward.

[0061] When vehicle 1000 is traveling on land, the hub motor assembly may not be working. When vehicle 1000 is traveling on water, the hub motor assembly starts working, the stator 50 is energized to drive the rotor 40 to rotate, the rotor 40 drives the blades 30 to rotate around the bearing 20, the rotation of the blades 30 can stir the water flow, thereby driving vehicle 1000 forward or backward.

[0062] The hub motor assembly of this application embodiment is connected to the body 200 of the vehicle 1000 by a support structure 10, and the inner ring 21 of the bearing 20 and the stator 50 are connected. The outer ring 22 of the bearing 20 is connected to the blade 30, and the blade 30 is connected to the rotor 40. The stator 50 can drive the rotor 40 to rotate, thereby driving the blade 30 to rotate. The rotation of the blade 30 agitates the water flow, which can drive the vehicle 1000 to travel on water. When the hub motor assembly is not connected to the spare tire 60, the blade 30 can directly push the water flow with low flow resistance. When the hub motor assembly is connected to the spare tire 60, the gap of the spokes 612 can allow water flow, so that the blade 30 can still agitate the water flow, allowing the water flow to flow smoothly between the spare tire 60 and the blade 30. The spokes 612 and the blade 30 can agitate the water flow at the same time, and the flow resistance is also low. Therefore, the problem of high flow resistance when the vehicle 1000 travels on water is solved.

[0063] Meanwhile, the first center hole 211 of the bearing 20 and the second center hole 614 of the hub 611 are connected, so that water can also flow in the first center hole 211 and the second center hole 614, further reducing the flow resistance.

[0064] To further reduce flow resistance, the gap between the spokes 612 of the spare tire 60 can be made as large as possible, for example, by using a narrower spoke or spoke structure.

[0065] In one embodiment, reference Figures 1 to 3 The support structure 10 includes a support frame 11 and a swing arm 12. One end of the swing arm 12 is adapted to be rotatably connected to the body 200 of the vehicle 1000. The support frame 11 is connected and fixed to the other end of the swing arm 12. The support frame 11 is connected and fixed to the inner ring 21 and the stator 50.

[0066] The specific structure of the support frame 11 is not limited. For example, such as... Figure 1 As shown, the support frame 11 includes a first component 111, a second component 112, and a third component 113 connected in sequence. The first component 111 and the third component 113 are respectively connected to the opposite ends of the second component 112, and the first component 111 and the third component 113 are located on the same side of the second component 112. The first component 111 and the third component 113 are arranged opposite each other in the radial direction of the bearing 20. The end of the first component 111 away from the second component 112 is connected and fixed to the inner ring 21 of the bearing 20, specifically, it can be connected and fixed to the first mounting part 213. The connection method can be integral or separate. The separate connection can be screwed, snap-fit, etc., without limitation. The stator 50 is connected and fixed to the third component 113. The other end of the swing arm 12 is connected and fixed to the surface of the second component 112 opposite to the first component 111.

[0067] The swing arm 12 can be a straight rod, a curved rod, or other structures, without limitation. The swing arm 12 can be directly connected to the vehicle body 200, or indirectly connected to the vehicle body 200 through other structures, without limitation. The rotation of the swing arm 12 and the vehicle body 200 can be manually controlled or automatically controlled, without limitation. The interior of the swing arm 12 is hollow, forming a wiring channel 121, which can be used to arrange wire harnesses, allowing the wire harnesses to connect to the stator 50. The swing arm 12 and the support frame 11 can be an integral or separate structure, without limitation. After the wire harness extends from the swing arm 12, it can be arranged along the support frame 11 and connected to the stator 50. The wire harness on the support frame 11 also needs to be waterproofed; for details, refer to the waterproofing of the stator 50, which will not be elaborated further.

[0068] The swing arm 12 can rotate relative to the vehicle body 200 of the vehicle 1000, thereby driving the connected support frame 11 and the bearing 20, blade 30, rotor 40, stator 50, spare tire 60 (if any) connected to the support frame 11 to rotate relative to the vehicle body 200. In this way, the arrangement of the hub motor assembly is more flexible. When the vehicle 1000 is traveling on land, the swing arm 12 can be rotated so that the above-mentioned structures are close to the vehicle body 200 to reduce the volume exposed on the vehicle body 200 and reduce wind resistance. When the vehicle 1000 is traveling on water, the swing arm 12 can be rotated so that the above-mentioned structures extend beyond the vehicle body 200 to have a larger contact area with the water flow, thereby allowing the blade 30 to stir more water flow and meet the requirements of driving the vehicle 1000 forward or backward on water.

[0069] In one embodiment, reference Figure 1 , Figure 3 and Figure 4 The hub motor assembly also includes a drive unit 70, which is adapted to be connected and fixed to the body 200 of the vehicle 1000. One end of the swing arm 12 is connected to the drive unit 70, and the drive unit 70 is adapted to drive the swing arm 12 to rotate relative to the body 200 of the vehicle 1000.

[0070] The drive unit 70 is, for example, a motor, and one end of the swing arm 12 can be connected to the output shaft of the drive unit 70. Optionally, a reduction mechanism can be provided between the drive unit 70 and the swing arm 12 to increase the output torque of the drive unit 70. Optionally, a limiting structure can also be provided between the drive unit 70 and the swing arm 12, so that when the swing arm 12 rotates to a certain position, it cooperates with the limiting structure to fix the swing arm 12 in that position. It can only rotate again after contacting the limiting structure. In this way, the hub motor assembly can be kept in a stable state when traveling on land and water.

[0071] Optional, see reference Figure 1 and Figure 4The hub motor assembly may also include a control unit (not shown), which is electrically connected to the drive unit 70 and is used to control whether the drive unit 70 drives the swing arm 12 to rotate. Optionally, the control unit is electrically connected to the stator 50 and is adapted to control the speed and direction of rotation of the rotor 40 relative to the stator 50, thereby enabling control of the rotational speed and direction of rotation of the blade 30.

[0072] In one embodiment, reference Figure 1 and Figure 4 There are multiple blades 30, and the multiple blades 30 are arranged at intervals along the circumference of the bearing 20. The shape and structure of the multiple blades 30 can be all the same, not all the same, or not all different, without restriction. There is a gap between two adjacent blades 30 to allow water flow. Setting up multiple blades 30 can increase the agitation force on the water flow and increase the driving force for the vehicle 1000 to move forward or backward.

[0073] In one embodiment, reference Figure 1 and Figure 4 Each blade 30 is connected to a rotor 40. In this way, the stator 50 can apply a magnetic force to the rotor 40 on each blade 30, thereby making the driving force on the multiple blades 30 more uniform and consistent. This improves the stirring force on the water flow, balances the force on the blades 30, and enhances reliability.

[0074] The stator 50 can be configured to rotate in one full circle or in a circumferential direction but not in one full circle, as long as it can drive the rotor 40 to rotate, there are no restrictions.

[0075] refer to Figures 1 to 4 This application also provides a spare tire assembly 100, including a spare tire 60 and a hub motor assembly from any of the foregoing embodiments.

[0076] The spare tire 60 includes a wheel 61 and a tire 62. The wheel 61 includes a hub 611, spokes 612, and a rim 613. The hub 611 and rim 613 are concentrically arranged, and the spokes 612 connect the hub 611 and rim 613. The tire 62 is fitted onto the rim 613. The wheel 61 and tire 62 can be based on existing designs, and this application does not impose any limitations.

[0077] The hub 611 of the hub motor assembly and the hub 611 of the spare tire 60 have the same structure. Optionally, the hub 611 is detachably connected to the rotor 40; specifically, the outer ring 22 of the bearing 20 is detachably connected to the hub 611. The specific method of detachably connecting the outer ring 22 of the bearing 20 to the hub 611 can be referred to the foregoing description and will not be repeated here.

[0078] The spare tire assembly 100 of this application integrates the spare tire 60 with the wheel hub motor assembly, which can save space on the vehicle 1000 for housing the spare tire 60, or allow the space currently used for housing the spare tire 60 on the vehicle 1000 to accommodate other components, thereby making the vehicle 1000 structure more compact. This spare tire assembly 100 does not require a redesign of the spare tire 60; it can simply use the existing spare tire 60, thus saving costs.

[0079] When vehicle 1000 is driving normally on land, the hub motor assembly is not operational. The hub motor assembly acts as a support base for the spare tire 60, stably connecting it to the vehicle body 200. If a problem occurs with one of the vehicle's normal front or rear wheels 300, the spare tire 60 can be detached from the outer ring 22 of the bearing 20 and replaced with the faulty front or rear wheel 300, allowing vehicle 1000 to continue driving. When vehicle 1000 is driving on water, the hub motor assembly activates. Because tire 62 is made of rubber and is hollow, the spare tire 60 floats due to the buoyancy of the water, providing lift to prevent vehicle 1000 from sinking.

[0080] In an embodiment where the swing arm 12 of the hub motor assembly can rotate relative to the vehicle body 200 of the vehicle 1000, the position of the spare tire assembly 100 can be adjusted by rotating the swing arm 12. Specifically, when the vehicle 1000 is traveling on land, the spare tire assembly 100 rotates to be close to the vehicle body 200 to reduce its exposed volume and wind resistance. When the vehicle 1000 is traveling on water, the spare tire assembly 100 rotates to be exposed to the vehicle body 200, so that the spare tire assembly 100 has a larger contact area with the water flow, thereby ensuring that the propeller blades 30 provide sufficient driving force to propel the vehicle 1000 forward or backward.

[0081] In one embodiment, reference Figure 1 The rim 613 encloses a receiving space, in which the bearing 20, blade 30, rotor 40 and stator 50 are all housed.

[0082] The spokes 612 can be connected to one end of the rim 613 along axis A, meaning the rim 613 can be located on one side of the spokes 612, rather than on both sides. This allows the rim 613 to enclose a sufficiently large volume of housing space, accommodating the bearing 20, blade 30, rotor 40, and stator 50. Optionally, at least a portion of the support structure 10 is also housed within this housing space; for example, most or all of the support frame 11 is housed within the housing space, with only the swing arm 12 outside. This fully utilizes the space of the wheel 61, reducing the volume of the spare tire assembly 100 and resulting in a more compact structure.

[0083] Furthermore, since both the blade 30 and the wheel 61 are connected and fixed to the outer ring 22 of the bearing 20, when the blade 30 rotates, the spare tire 60 can also rotate synchronously through the outer ring 22 of the bearing 20. The bearing 20, blade 30, rotor 40 and stator 50 are located in the housing space, which reduces the space requirements of the spare tire assembly 100 in the direction of axis A. This is beneficial for water to flow in the direction of axis A, which can reduce the flow resistance of water in the direction of axis A, improve fluid efficiency and reduce energy consumption.

[0084] refer to Figures 1 to 4 This application also provides a vehicle 1000, including a body 200 and a spare tire assembly 100 as described in any of the foregoing embodiments, wherein the spare tire assembly 100 is connected to the body 200.

[0085] Specifically, vehicle 1000 also includes front wheels, rear wheels 300, suspension, and other structures. The suspension is connected to the front and rear wheels 300, and the body 200 is connected to the suspension. Body 200 may include a frame, floor, front door, rear door, tailgate 210, roof, and other structures. The floor, front door, rear door, tailgate 210, and roof are connected to the frame. Spare tire assembly 100 can be connected to any position on body 200. Optionally, spare tire assembly 100 can be connected to at least one of the frame, floor, or tailgate 210. Optionally, the axis A of bearing 20 of spare tire assembly 100 extends in the same direction as the longitudinal direction of vehicle 1000. Thus, when vehicle 1000 is traveling on water, the rotation of propeller 30 can drive vehicle 1000 forward or backward. It is understandable that the axis A of the bearing 20 of the spare tire assembly 100 can extend at a certain angle to the front-rear direction of the vehicle 1000, as long as the propeller 30 can drive the vehicle 1000 forward or backward.

[0086] The vehicle 1000 in this embodiment can be an amphibious vehicle, which, in addition to being able to travel on land and water, has the advantage of low water flow resistance.

[0087] In one embodiment, reference Figures 1 to 4 The spare tire assembly 100 is rotatably connected to the tailgate 210, and the spare tire assembly 100 rotates to switch between a first position and a second position. In the first position, the spare tire assembly 100 is close to the tailgate 210; in the second position, the paddle 30 is located at the bottom of the vehicle body 200 facing the ground.

[0088] The rotation of the swing arm 12 causes the spare tire assembly 100 to be close to the tailgate 210 in the first position. This ensures that the spare tire assembly 1000 does not obstruct the wind when the vehicle 1000 is moving forward on land, reducing wind resistance. Therefore, the vehicle 1000 in this embodiment is essentially the same as a vehicle 1000 normally driving on land. Compared to a design where the spare tire assembly 100 is fixed relative to and below the vehicle body 200, this design avoids the spare tire assembly 1000 dragging on the ground and hindering normal driving of the vehicle 1000 on the road, protecting the spare tire 60 and the wheel hub motor assembly.

[0089] When the swing arm 12 rotates, the spare tire assembly 100 is in the second position, with the propeller 30 positioned at the bottom of the vehicle body 200 facing the earth. This can be achieved by having all parts of the spare tire assembly 100, except for the portion with the swing arm 12, positioned at the bottom of the vehicle body 200 facing the earth (i.e., below the vehicle body 200), or by having only the propeller 30 positioned at the bottom of the vehicle body 200 facing the earth (i.e., below the vehicle body 200). The spare tire 60 can be partially positioned above the bottom of the vehicle body 200, meaning the propeller 30 is below the vehicle body 200. The spare tire 60 can also partially overlap with the vehicle body 200 in the longitudinal direction of the vehicle 1000. In short, with the propeller 30 positioned at the bottom of the vehicle body 200 facing the earth (below the vehicle body 200), when the vehicle 1000 is traveling on water, the propeller 30 can agitate the water flowing from below the vehicle body 200 in the longitudinal direction, thereby propelling the vehicle 1000 on the water and reducing water resistance. In addition, a deflectable baffle (not shown) or other structure can be installed on the vehicle body 200 to control the steering of the vehicle 1000 when it travels on water by deflecting the baffle.

[0090] Optionally, the spare tire assembly 100 also includes a mounting bracket 80, which is connected and fixed to the tailgate 210. The drive component 70 of the spare tire assembly 100 is disposed on the mounting bracket 80, and the swing arm 12 of the spare tire assembly 100 is rotatably connected to the mounting bracket 80.

[0091] Optional, see reference Figure 4 The spare tire assembly 100 is connected to the tailgate 210 in the middle of the left and right direction of the vehicle 1000. When the spare tire assembly 100 is in the second position, the spare tire 60 rotates to the position between the two rear wheels 300 in the left and right direction of the vehicle 1000. In this way, when the propeller 30 rotates, the thrust provided to the vehicle 1000 for water travel is centered, which helps to ensure the balance and stability of the vehicle 1000.

[0092] In one embodiment, reference Figure 3 The body 200 is connected to the rear wheel 300 through the suspension. When the spare tire assembly 100 is in the second position, the spare tire assembly 100 is closer to the center of the earth than the rear wheel 300.

[0093] In other words, the lowest point of the spare tire assembly 100 is lower than the lowest point of the rear wheel 300. When the vehicle 1000 needs to turn on land, the hub motor assembly can be activated. Since the spare tire assembly 100 is lower than the rear wheel 300, the spare tire assembly 100 touches the ground, and the rear wheel 300 is lifted and suspended in the air by the spare tire assembly 100. The axis of the bearing 20 of the spare tire assembly 100 is roughly aligned with the longitudinal direction of the vehicle 1000. Thus, the rotation of the spare tire 60 will cause the vehicle 1000 to rotate around the front wheel, enabling the vehicle 1000 to turn on the spot. When the vehicle 1000 is traveling on water, the spare tire assembly 100 is lower than the rear wheel 300, which provides greater buoyancy to the vehicle 1000. At the same time, it ensures that the tire assembly 62 has sufficient contact area with the water flow under the vehicle body 200 to ensure sufficient driving force.

[0094] In one embodiment, reference Figure 2 and Figure 3 The spare tire assembly 100 is also adapted to be fixed relative to the tailgate 210 at any position between the first position and the second position.

[0095] Combination Figures 1 to 3 When the spare tire assembly 100 is in the first and second positions, the axis A of the bearing 20 of the spare tire assembly 100 can be aligned with the longitudinal direction of the vehicle 1000. The spare tire assembly 100 can be rotated 180° to switch from the first position to the second position, or vice versa. When the spare tire assembly 100 is in any other position from the first and second positions, the axis A of the bearing 20 forms an angle with the longitudinal direction of the vehicle 1000. For example, the spare tire assembly 100 can be rotated so that the axis A of the bearing 20 is perpendicular to the longitudinal direction of the vehicle 1000, i.e., the axis A of the bearing 20 is vertical. At this time, the spare tire assembly 100 can be approximately horizontal, and the spare tire 60 can be disassembled and separated from the hub motor assembly in this position for easy operation.

[0096] When vehicle 1000 is traveling on water, the water flow may not be calm but rather undulating. In this state, the position of spare tire assembly 100 can be adjusted to a position between the first and second positions, so that the axis A of bearing 20 has an angle with the front-rear direction of vehicle 1000, in order to adjust the posture of vehicle 1000 on water, balance the impact of the unstable water surface, and ensure the stability of vehicle 1000.

[0097] In summary, the vehicle 1000 of this application embodiment has the functions of driving on land and water, and has advantages such as low wind resistance, low water flow resistance, high integration, compact space design, convenient disassembly and assembly, good driving stability, and the ability to turn around on the spot on the road.

[0098] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other indicators are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to 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.

[0099] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A hub motor assembly, characterized in that, include: The stator is suitable for connection to the vehicle body; A rotor is disposed inside the stator and is adapted to rotate relative to the stator. The hub is connected to the rotor; The blades are connected to the rotor.

2. The hub motor assembly according to claim 1, characterized in that, The blades are disposed on the inner side of the rotor.

3. The hub motor assembly according to claim 2, characterized in that, It also includes a bearing, which includes an inner ring and an outer ring. The outer ring is fitted onto the inner ring. The inner ring is adapted to be connected to the vehicle body. The outer ring is connected to the wheel hub. The bearing is coaxially arranged with the wheel hub. One end of the blade is connected to the outer ring, and the other end is connected to the rotor.

4. The hub motor assembly according to claim 3, characterized in that, The outer ring is detachably connected to the wheel hub.

5. The hub motor assembly according to claim 3, characterized in that, It also includes a support structure that is connected to the stator and the inner ring and is adapted to be connected to the vehicle body.

6. The hub motor assembly according to claim 5, characterized in that, The support structure includes a support frame and a swing arm. One end of the swing arm is adapted to be rotatably connected to the vehicle body. The support frame is fixedly connected to the other end of the swing arm. The support frame is fixedly connected to the inner ring and the stator.

7. The hub motor assembly according to claim 6, characterized in that, The hub motor assembly also includes a drive unit adapted to be connected and fixed to the vehicle body, one end of the swing arm is connected to the drive unit, and the drive unit is adapted to drive the swing arm to rotate relative to the vehicle body.

8. The hub motor assembly according to claim 3, characterized in that, The blades are multiple, and the multiple blades are spaced apart circumferentially along the bearing.

9. The hub motor assembly according to claim 8, characterized in that, Each of the blades is connected to one of the rotors.

10. The hub motor assembly according to any one of claims 1 to 9, characterized in that, The hub motor assembly also includes a control unit electrically connected to the stator, the control unit being adapted to control the speed and direction of rotation of the rotor relative to the stator.

11. A spare tire assembly, characterized in that, include: A spare tire includes a wheel and a tire. The wheel includes a hub, spokes, and a rim. The hub and the rim are concentrically arranged. The spokes connect the hub and the rim. The tire is fitted onto the rim. The hub motor assembly as claimed in any one of claims 1 to 10, wherein the hub is detachably connected to the rotor.

12. The spare tire assembly according to claim 11, characterized in that, The rim encloses a receiving space, and the blades, the rotor, and the stator are all housed within the receiving space.

13. A vehicle, characterized in that, It includes a vehicle body and a spare tire assembly as described in claim 11 or 12, the spare tire assembly being connected to the vehicle body.

14. The vehicle according to claim 13, characterized in that, The vehicle body includes a tailgate, the spare tire assembly is rotatably connected to the tailgate, and the spare tire assembly rotates to switch between a first position and a second position. In the first position, the spare tire assembly is close to the tailgate, and in the second position, the propeller is located at the bottom of the vehicle body facing the center of the earth.

15. The vehicle according to claim 14, characterized in that, The vehicle also includes a rear wheel, the body is connected to the rear wheel, and when the spare tire assembly is in the second position, the spare tire assembly is closer to the center of the earth than the rear wheel.

16. The vehicle according to claim 14, characterized in that, The spare tire assembly is also adapted to be fixed relative to the tailgate at any position between the first position and the second position.

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