Hub and vehicle

Abstract

The embodiment of the utility model provides a hub and a vehicle, relates to the technical field of vehicles, and aims to solve the technical problems that the load borne by the hub is low, the risk that a rim and an iron ring are separated easily occurs, the motor efficiency is reduced, and the endurance mileage of the whole vehicle is small. The rim sleeves the outer side of the magnetic conductive iron ring; the rim comprises a connecting part, and the first end of the connecting part is connected with the magnetic conducting iron ring through welding to form a first welding seam; the second end of the connecting part is welded with the magnetic conductive iron ring to form a second welding seam; the first welding seam and the second welding seam are arranged at intervals in the axial direction of the hub; the fixing ring is fixedly connected with the magnetic conducting iron ring; the two fixing rings are respectively a first fixing ring and a second fixing ring; in the axial direction of the hub, the first fixing ring is located on the side, away from the second welding seam, of the first welding seam, and the second fixing ring is located on the side, away from the first welding seam, of the second welding seam; the first end cover is fixedly connected with the first fixing ring; and the second end cover is fixedly connected with the second fixing ring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a wheel hub and a vehicle. BACKGROUND

[0002] The outer rotor motor is a common power output component of existing electric power-assisted vehicles, wherein the electric power-assisted vehicles can be balance cars, electric power-assisted scooters, electric two-wheel vehicles, etc.

[0003] The wheel hub of the electric power-assisted vehicle includes a rim and a rim ring, wherein the existing rim ring is mostly a Z-shaped edge-rolled magnetic rim ring, one end of the Z-shaped edge-rolled magnetic rim ring has an outer flange, and the other end of the Z-shaped edge-rolled magnetic rim ring has an inner flange.

[0004] However, the Z-shaped edge-rolled magnetic rim ring will reduce the output power of the motor and the efficiency of the motor, thereby reducing the endurance mileage of the whole vehicle, and the load on the wheel hub is low, which is prone to the risk of separation of the rim and the rim ring. Therefore, the present application provides a wheel hub and a vehicle. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a wheel hub and a vehicle to solve the technical problems of low load on the wheel hub, the risk of separation of the rim and the rim ring, low efficiency of the motor, and small endurance mileage of the whole vehicle.

[0006] In order to achieve the above-mentioned purpose, the embodiments of the present application provide the following technical solutions:

[0007] In a first aspect, the embodiments of the present application provide a wheel hub, comprising:

[0008] A magnetic conductive rim, which is arranged in a ring shape; along the axial direction of the wheel hub, the magnetic conductive rim includes a first end and a second end of the rim arranged oppositely;

[0009] A rim, which is arranged in a ring shape, and the rim is sleeved on the outside of the magnetic conductive rim; the rim includes:

[0010] A connecting portion, which is arranged in a ring shape; along the axial direction of the wheel hub, the connecting portion includes a first end and a second end of the connecting portion arranged oppositely;

[0011] Wherein, the first end of the connecting portion and the magnetic conductive rim are connected by welding to form a first weld; the second end of the connecting portion and the magnetic conductive rim are connected by welding to form a second weld; along the axial direction of the wheel hub, the first weld and the second weld are arranged at intervals;

[0012] A fixing ring, which is arranged in a ring shape, and the fixing ring is fixedly connected with the magnetic conductive rim; the fixing ring has two;

[0013] The two fixing rings are a first fixing ring and a second fixing ring, respectively; along the axial direction of the hub, the first fixing ring is located on the side of the first weld away from the second weld, and the second fixing ring is located on the side of the second weld away from the first weld;

[0014] The first end cap is fixedly connected to the first fixing ring;

[0015] The second end cap is fixedly connected to the second fixing ring.

[0016] In some embodiments of this application, the retaining ring is sleeved on the magnetic ring; along the radial direction of the hub, the retaining ring is located between the magnetic ring and the rim.

[0017] In some embodiments of this application, the magnetic ring includes a first iron ring, a second iron ring, and a third iron ring; the first iron ring, the second iron ring, and the third iron ring are arranged sequentially along the axial direction of the hub.

[0018] The second iron ring segment includes an outer ring surface, which is located on the outside of the second iron ring segment.

[0019] Along the radial direction of the hub, both the first and third iron ring sections are located inside the outer ring surface of the second iron ring.

[0020] The connecting part is sleeved on the second section of iron ring, and the second section of iron ring is connected to the first end and the second end of the connecting part by welding;

[0021] The first fixing ring is fitted onto the first section of the iron ring, and the second fixing ring is fitted onto the third section of the iron ring.

[0022] In some embodiments of this application, the end of the first fixing ring near the second fixing ring abuts against the end of the second iron ring away from the second end of the iron ring;

[0023] The end of the second fixing ring near the first fixing ring abuts against the end of the second iron ring away from the first end of the iron ring.

[0024] In some embodiments of this application, the first end cap is provided with a first positioning ring, the first positioning ring is arranged in a ring shape, and the first positioning ring is inserted into the magnetic ring;

[0025] The first end cap is provided with a first positioning surface, which is arranged in a ring shape and abuts against the end of the first fixing ring away from the second end of the iron ring.

[0026] In some embodiments of this application, the second end cap is provided with a second positioning ring, the second positioning ring is arranged in a ring shape, and the second positioning ring is inserted into the magnetic ring;

[0027] The second end cap is provided with a second positioning surface, which is arranged in a ring shape and abuts against the end of the second fixing ring away from the first end of the iron ring.

[0028] In some embodiments of this application, the fixing ring and the magnetic ring are connected by welding.

[0029] In some embodiments of this application, one of the fixing ring and the magnetic ring has a raised rib, and the other has a groove. The raised rib is inserted into the groove, and the raised rib and the groove are interference-fitted to fix the fixing ring and the magnetic ring together.

[0030] In some embodiments of this application, a first connecting hole is provided on the inner ring surface of the magnetic ring;

[0031] The wheel hub includes:

[0032] A first connector is inserted into the first connecting hole, and the first connector connects the magnetic ring and the fixing ring.

[0033] Secondly, embodiments of this application provide a vehicle including the wheel hub described in the above embodiments.

[0034] The wheel hub and vehicle provided in this application have the following technical effects: The magnetic ring is welded to the first and second ends of the connecting portion, forming two welds (first and second welds), which enhances the connection strength between the magnetic ring and the rim, allowing the wheel hub to withstand a larger maximum load and reducing the possibility of separation between the rim and the magnetic ring. Welding the magnetic ring to the first and second ends of the connecting portion causes deformation of the magnetic ring. Compared with existing technologies, after welding the magnetic ring to the first and second ends of the connecting portion, there is no limitation on the outward flange of the magnetic ring. The inner and outer ring sides of the magnetic ring can be processed, and deformed magnetic rings can be repaired to reduce deformation. By processing the inner and outer ring sides of the magnetic guide ring, the thickness distribution of the magnetic guide ring is made uniform, which can improve motor efficiency and increase the driving range of the whole vehicle. Two fixing rings are set, and a connecting structure is set on the fixing rings so that the fixing rings are connected to the first end cover and the second end cover. This avoids setting a connecting structure on the magnetic guide ring itself to connect the magnetic guide ring to the first end cover and the second end cover, which can prevent the magnetic guide ring from being too thick and reduce the weight of the wheel hub. Attached Figure Description

[0035] 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a partial structural schematic diagram of a wheel hub according to an embodiment of this application;

[0037] Figure 2 This is another partial structural diagram of a wheel hub according to an embodiment of this application;

[0038] Figure 3 for Figure 2 Sectional view at point AA;

[0039] Figure 4 This is a partial structural cross-sectional view of a wheel hub according to an embodiment of this application;

[0040] Figure 5 This is a partial structural cross-sectional view of a wheel hub according to an embodiment of this application;

[0041] Figure 6 This is a partial structural cross-sectional view of a wheel hub according to an embodiment of this application;

[0042] Figure 7 This is a structural diagram of a wheel hub according to an embodiment of this application;

[0043] Figure 8 This is a cross-sectional view of a wheel hub according to an embodiment of this application;

[0044] Figure 9 This is a partial structural cross-sectional view of a wheel hub according to an embodiment of this application;

[0045] Figure 10 This is an exploded view of a partial structure of a wheel hub according to an embodiment of this application;

[0046] Figure 11 This is a partial structural cross-sectional view of a wheel hub according to an embodiment of this application;

[0047] Figure 12 This is a partial structural diagram of a vehicle according to an embodiment of this application;

[0048] Figure 13 This is another partial structural diagram of a vehicle according to an embodiment of this application.

[0049] Explanation of reference numerals in the attached figures:

[0050] 1: Wheel hub;

[0051] 11: Magnetic coil; 111: First end of the iron ring; 112: Second end of the iron ring; 113: Outer ring surface of the iron ring; 1131: First connecting outer ring surface; 1132: Second connecting outer ring surface; 114: Inner ring surface of the iron ring; 115: First section of the iron ring; 1151: Outer ring surface of the first iron ring; 116: Second section of the iron ring; 1161: Outer ring surface of the second iron ring; 117: Third section of the iron ring; 1171: Outer ring surface of the third iron ring;

[0052] 12: Wheel rim; 121: Connecting part; 1211: First end of connecting part; 1212: Second end of connecting part; 122: First ring body; 123: First end of wheel rim; 124: Second end of wheel rim;

[0053] 13: Retaining ring; 131: First retaining ring; 1311: Second connecting hole; 132: Second retaining ring; 1321: Fourth connecting hole; 133: First groove;

[0054] 141: First end cap; 1411: First positioning ring; 14111: First positioning outer ring surface; 1412: First positioning surface; 1413: Third connecting hole; 1414: First mounting hole;

[0055] 142: Second end cap; 1421: Second positioning ring; 14211: Second positioning outer ring surface; 1422: Second positioning surface; 1423: Fifth connecting hole; 1424: Second mounting hole;

[0056] 15: Magnet;

[0057] 21: Axle; 22: Stator; 23: First bearing; 24: Second bearing. Detailed Implementation

[0058] As described in the background section, in related technologies, the Z-shaped rolled edge magnetic ring, when connected to the wheel rim, can cause deformation of the magnetic ring, especially after welding. Because the magnetic ring is Z-shaped rolled edge, the inner side can be machined. However, due to the limitation of the rolled edge on one side, the outer side of the magnetic ring is difficult to machine, resulting in uneven thickness distribution and some areas being too thin. This affects the magnetic flux density distribution of the magnetic ring, causing magnetic saturation in the thinner sections. Under high torque operation of the motor, this leads to reduced motor output power and efficiency, thus reducing the vehicle's range. Furthermore, the limited roll edge on one side of the magnetic ring means the connection between the magnetic ring and the wheel hub is only on one side. Therefore, the load on the wheel hub is limited, and under heavy loads, the rim and magnetic ring may separate.

[0059] To address the aforementioned technical problems, this application proposes a wheel hub, comprising a magnetic ring and a rim. Along the axial direction of the wheel hub, the magnetic ring includes a first iron ring end and a second iron ring end disposed opposite to each other, and the rim is fitted over the outer side of the magnetic ring. The rim includes a connecting portion. Along the axial direction of the wheel hub, the connecting portion includes a first connecting portion end and a second connecting portion end disposed opposite to each other. The first connecting portion end is welded to the magnetic ring to form a first weld; the second connecting portion end is welded to the magnetic ring to form a second weld. Along the axial direction of the wheel hub, the first weld and the second weld are spaced apart. This design enhances the connection strength between the magnetic ring and the wheel rim, allowing the wheel hub to withstand a larger maximum load and reducing the possibility of separation between the rim and the magnetic ring. The magnetic ring is welded to both the first and second ends of the connecting portion. While welding can deform the magnetic ring, this design, compared to existing technologies, eliminates the limitation of outward flanges on the magnetic ring. It allows for processing of both the inner and outer ring sides of the magnetic ring, enabling the trimming of deformed rings to reduce deformation. Processing the inner and outer ring sides of the magnetic ring ensures a uniform thickness distribution, improving motor efficiency and increasing the vehicle's driving range. The wheel hub includes a retaining ring, a first end cap, and a second end cap. The retaining ring is fixedly connected to the magnetic ring. There are two retaining rings, namely a first retaining ring and a second retaining ring. Along the axial direction of the wheel hub, the first retaining ring is located on the side of the first weld away from the second weld, and the second retaining ring is located on the side of the second weld away from the first weld. The first end cap is fixedly connected to the first retaining ring, and the second end cap is fixedly connected to the second retaining ring. This avoids setting a connecting structure on the magnetic ring so that the magnetic ring is connected to the first end cap and the second end cap, which prevents the magnetic ring from being too thick and reduces the weight of the wheel hub.

[0060] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0061] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0062] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0063] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0064] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0065] 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0066] 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 some embodiments of this application, and not all embodiments. 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.

[0067] refer to Figure 1 , Figure 2 and Figure 3 This application provides a wheel hub 1. The wheel hub 1 includes a magnetic ring 11. The magnetic ring 11 is arranged in a ring shape.

[0068] refer to Figure 4 Along the axial direction of the hub, the magnetic ring 11 includes a first end 111 and a second end 112 of an iron ring disposed opposite each other.

[0069] refer to Figure 4 The magnetic ring 11 includes an outer ring surface 113. The outer ring surface 113 is arranged in a ring shape. The outer ring surface 113 is located on the outside of the magnetic ring.

[0070] refer to Figure 4The magnetic ring 11 includes an inner annular surface 114. The inner annular surface 114 is arranged in a ring shape. The inner annular surface 114 is located inside the magnetic ring.

[0071] In some embodiments, the magnetic coil has an iron ring cross-section. The iron ring cross-section is perpendicular to the annular extension direction of the magnetic coil. The iron ring cross-section is rectangular.

[0072] In some embodiments, reference Figure 3 and Figure 4 The hub 1 includes a rim 12. The rim 12 is used to mount the tire. The rim 12 is arranged in a ring shape. The rim 12 is fitted onto the outside of the magnetic ring 11. Specifically, the rim 12 is fitted onto the outer ring surface 113 of the rim.

[0073] refer to Figure 4 The rim 12 includes a connecting portion 121. The connecting portion 121 is arranged in a ring shape. The connecting portion 121 is sleeved on the outer side of the magnetic ring 11. Specifically, the connecting portion 121 is sleeved on the outer ring surface 113 of the iron ring.

[0074] refer to Figure 4 Along the axial direction of the hub 1, the connecting portion 121 includes a first connecting end 1211 and a second connecting end 1212 disposed opposite to each other. The first connecting end 1211 is welded to the magnetic ring to form a first weld. The second connecting end 1212 is welded to the magnetic ring to form a second weld.

[0075] Along the axial direction of the hub, the first weld and the second weld are spaced apart. Along the axial direction of the hub, the first weld and the second weld are located between the first end 111 and the second end 112 of the rim.

[0076] The magnetic ring is connected to the first end and the second end of the connecting part by welding, which forms two welds, the first weld and the second weld. This enhances the connection strength between the magnetic ring and the rim, allowing the hub to withstand a larger maximum load and reducing the possibility of separation between the rim and the magnetic ring.

[0077] The magnetic coil is welded to both the first and second ends of the connecting portion. Welding causes deformation of the magnetic coil. However, compared to existing technologies, this welding process eliminates the limitation of outward flanges on the magnetic coil, allowing for machining of both the inner and outer rings. This enables the correction of deformed magnetic coils to reduce deformation. Machining the inner and outer rings ensures a uniform thickness distribution, improving motor efficiency and increasing the vehicle's driving range.

[0078] In some embodiments, reference Figure 5 and Figure 6The hub 1 includes a retaining ring 13. The retaining ring 13 is arranged in a ring shape. The retaining ring is fixedly connected to the magnetic ring. There are two retaining rings. The two retaining rings are a first retaining ring 131 and a second retaining ring 132.

[0079] Along the axial direction of the hub, the first retaining ring is located on the side of the first weld away from the second weld, and the second retaining ring is located on the side of the second weld away from the first weld.

[0080] In some embodiments, reference Figure 6 Along the axial direction of the hub, the rim includes a first end 123 and a second end 124 of the rim that are disposed opposite to each other.

[0081] refer to Figure 7 and Figure 8 The hub 1 includes a first end cap 141. The first end cap 141 is disposed at the first end of the rim. The first end cap 141 is fixedly connected to a first retaining ring.

[0082] refer to Figure 7 and Figure 8 The hub 1 includes a second end cap 142. The second end cap 142 is disposed at the second end of the rim. The second end cap 142 is fixedly connected to the second retaining ring.

[0083] Two retaining rings are provided, and a connecting structure is set on the retaining rings so that the retaining rings are connected to the first end cap and the second end cap. This avoids setting a connecting structure on the magnet ring so that the magnet ring is connected to the first end cap and the second end cap, which can prevent the magnet ring from being too thick and reduce the weight of the wheel hub.

[0084] In some embodiments, of the two retaining rings, one retaining ring is located at the first end of the iron ring, and the other retaining ring is located at the second end of the iron ring. This facilitates one retaining ring connecting the first end cap and the magnetic ring, and the other retaining ring connecting the second end cap and the magnetic ring. Specifically, the first retaining ring is located at the first end of the iron ring, and the second retaining ring is located at the second end of the magnetic ring.

[0085] In some embodiments, a retaining ring is fitted onto the magnetic ring. Located radially between the magnetic ring and the rim, the retaining ring allows for full utilization of the space between the rim and the magnetic ring, avoiding excessive influence on the axial dimensions of the hub and reducing hub weight.

[0086] In some embodiments, along the axial direction of the hub, two retaining rings respectively block the first weld and the second weld, such that the retaining rings are of sufficient size to provide enough space for the connection structure between the retaining rings and the first and second end caps, thereby ensuring the first and second end caps are stably fixed. Specifically, along the axial direction of the hub, the first retaining ring blocks the first weld, and the second retaining ring blocks the second weld.

[0087] In some embodiments, referenceFigure 4 The rim 12 includes a first ring body 122. The first ring body 122 is arranged in a ring shape. There are two first ring bodies 122. One end of the first ring body is connected to the first end of the connecting portion of the connecting part, and the other end of the first ring body is connected to the second end of the connecting portion of the connecting part.

[0088] The connecting part and the two first ring bodies are connected to form a wheel rim. The connecting part and the two first ring bodies can be integrally formed, making the wheel rim an integral part, which facilitates processing and improves the processing efficiency of the wheel rim. The wheel rim can be a metal part.

[0089] In some embodiments, the retaining ring and the magnetic ring are connected by welding, which provides a strong connection and is easy to implement.

[0090] In some embodiments, one of the fixing ring and the magnetic ring has a raised rib, and the other has a groove. The raised rib is inserted into the groove, and the raised rib and the groove are interference-fitted to fix the fixing ring and the magnetic ring in place.

[0091] In some embodiments, a first connecting hole is provided on the inner ring surface of the magnetic ring. The hub includes a first connector (not shown). The first connector is inserted into the first connecting hole, and the first connector connects the magnetic ring and the retaining ring.

[0092] In some embodiments, reference Figure 9 The magnetic ring includes a first iron ring 115, a second iron ring 116, and a third iron ring 117. The first iron ring 115, the second iron ring 116, and the third iron ring 117 are arranged sequentially along the axial direction of the hub.

[0093] refer to Figure 9 The second iron ring 116 includes an outer ring surface 1161. The outer ring surface 1161 is arranged in a ring shape. The outer ring surface 1161 is located on the outside of the second iron ring 116.

[0094] refer to Figure 9 Along the radial direction of the hub, the first section of the steel ring 115 and the third section of the steel ring 117 are both located inside the outer ring surface 1161 of the second steel ring. The connecting part 121 is fitted onto the second section of the steel ring 116. The second section of the steel ring is connected to the first end 1211 and the second end 1212 of the connecting part by welding.

[0095] Of the two fixing rings, one is the first fixing ring and the other is the second fixing ring. The first fixing ring is fitted onto the first iron ring 115, and the second fixing ring is fitted onto the third iron ring 117.

[0096] In some embodiments, reference Figure 9The first iron ring 115 includes an outer ring surface 1151. The outer ring surface 1151 is arranged in a ring shape. The outer ring surface 1151 is located on the outside of the first iron ring 115.

[0097] The third iron ring 117 includes an outer ring surface 1171. The outer ring surface 1171 is arranged in a ring shape. The outer ring surface 1171 is located on the outside of the third iron ring 117.

[0098] The connecting part is fitted onto the outer ring surface 1161 of the second iron ring. The first fixing ring is fitted onto the outer ring surface 1151 of the first iron ring. The second fixing ring is fitted onto the outer ring surface 1171 of the third iron ring.

[0099] In some embodiments, reference Figure 9 The outer ring surface 113 includes a first outer ring surface 1151. The outer ring surface 113 includes a second outer ring surface 1161. The outer ring surface 113 includes a third outer ring surface 1171.

[0100] In some embodiments, the outer ring surface 113 of the steel ring includes a first connecting outer ring surface 1131. The first connecting outer ring surface 1131 is connected between the first outer ring surface 1151 and the second outer ring surface 1161 of the steel ring. The first connecting outer ring surface 1131 is located at the end of the second steel ring near the first end of the steel ring.

[0101] refer to Figure 9 The outer ring surface 113 of the iron ring includes a second connecting outer ring surface 1132. The second connecting outer ring surface 1132 connects between the outer ring surface 1151 of the second iron ring and the outer ring surface 1171 of the third iron ring. The second connecting outer ring surface 1132 is located at the end of the second iron ring near the second end of the iron ring.

[0102] In some embodiments, the end of the first retaining ring near the second retaining ring may abut against the surface of the first connecting outer ring. The end of the second retaining ring near the first retaining ring may abut against the surface of the second connecting outer ring. This can reduce the axial dimension of the hub and lower its weight.

[0103] In some embodiments, the end of the first retaining ring near the second retaining ring can abut against the end of the second segment of the steel ring away from the second end of the steel ring. The end of the second retaining ring near the first retaining ring can abut against the end of the second segment of the steel ring away from the first end of the steel ring. This can reduce the axial dimension of the wheel hub and lower its weight.

[0104] In some embodiments, the first fixing ring is welded to the first iron ring 115. The welding position between the first fixing ring and the first iron ring 115 is located between the inner ring surface of the first fixing ring and the outer ring surface of the first iron ring 115.

[0105] In some embodiments, the second fixing ring is welded to the third iron ring 117. The welding position between the second fixing ring and the third iron ring 117 is located between the inner ring surface of the second fixing ring and the outer ring surface of the third iron ring.

[0106] In some embodiments, one of the fixing ring and the second iron ring has a raised rib and the other has a recess. The raised rib is inserted into the recess, and the raised rib and the recess are interference-fitted to fix the fixing ring and the magnetic ring.

[0107] Of the two, the protruding rib and the recessed rib, one is located at the end of the second iron ring, and the other is located at the end of the fixing ring near the second iron ring.

[0108] In some embodiments, a first connecting hole is provided on the inner ring surface of the first iron ring 115. The hub includes a first connector (not shown). The first connector is inserted into the first connecting hole, and the first connector connects the first iron ring 115 and the first retaining ring.

[0109] In some embodiments, a first connecting hole is provided on the inner ring surface of the third iron ring 117. The hub includes a first connector (not shown). The first connector is inserted into the first connecting hole, and the first connector connects the third iron ring 117 and the second fixing ring.

[0110] In some embodiments, the retaining ring has a first cross-section. The first cross-section is perpendicular to the annular extension direction of the retaining ring. The first cross-section is rectangular.

[0111] In some embodiments, the retaining ring includes an inner end. The inner end of the retaining ring is located at one end of the retaining ring near the connecting portion. A first groove 133 is formed on the retaining ring. The first groove is located at the inner end of the retaining ring, and the opening end of the first groove is located at the end of the first groove near the connecting portion. The first groove is annular. The first groove extends along the annular extension direction of the retaining ring. Providing the first groove on the retaining ring can reduce the weight of the retaining ring and thus reduce the weight of the wheel hub.

[0112] In some embodiments, reference Figure 10 and Figure 11 A second connecting hole 1311 is formed on the first fixing ring 131. The second connecting hole is used to connect the first fixing ring to the first end cap. A third connecting hole 1413 is formed on the first end cap. The third connecting hole is used to connect the first end cap to the first fixing ring.

[0113] The wheel hub includes a second connector (not shown), which is inserted into a second connection hole and a third connection hole to connect the first retaining ring and the first end cap.

[0114] In some embodiments, along the axial direction of the hub, a first end cap covers one end of the first retaining ring and the magnet ring. The outer edge of the first end cap is located inside the rim.

[0115] In some embodiments, there are a plurality of second connecting holes, which are spaced apart along the circumferential extension direction of the first fixing ring.

[0116] In some embodiments, reference Figure 10 and Figure 11 A fourth connecting hole 1321 is formed on the second retaining ring. The fourth connecting hole is used to connect the second retaining ring to the second end cap. A fifth connecting hole 1423 is formed on the second end cap. The fifth connecting hole is used to connect the second end cap to the second retaining ring.

[0117] The wheel hub includes a third connector (not shown), which is inserted into the fourth and fifth connecting holes to connect the second retaining ring and the second end cap.

[0118] In some embodiments, there are a plurality of fourth connecting holes, which are spaced apart along the circumferential extension direction of the second fixing ring.

[0119] In some embodiments, along the axial direction of the hub, the second end cap covers the second end of the iron ring of the second retaining ring and the magnetic ring. The outer edge of the second end cap is located inside the rim.

[0120] In some embodiments, reference Figure 10 and Figure 11 The first end cap is provided with a first positioning ring 1411. The first positioning ring is arranged in a ring shape. The first positioning ring is inserted into the magnetic ring. The first positioning ring has a first positioning outer ring surface 14111 located outside the first positioning ring. The first positioning outer ring surface 14111 is arranged in a ring shape.

[0121] refer to Figure 10 and Figure 11 The first end cap is provided with a first positioning surface 1412. The first positioning surface is annular. The inner ring contour of the first positioning surface is connected to the end of the first positioning outer ring surface 14111 away from the second end of the iron ring. The first positioning surface abuts against the end of the first fixing ring away from the second end of the iron ring.

[0122] A first positioning ring and a first positioning surface are provided on the first end cover to facilitate positioning during installation of the first end cover and to facilitate connection between the first end cover and the first fixing ring.

[0123] In some embodiments, reference Figure 10 and Figure 11 The second end cap is provided with a second positioning ring 1421. The second positioning ring is arranged in a ring shape. The second positioning ring is inserted into the magnetic ring. The second positioning ring has a second positioning outer ring surface 14211 located outside the second positioning ring. The second positioning outer ring surface 14211 is arranged in a ring shape.

[0124] refer to Figure 10and Figure 11 The second end cap is provided with a second positioning surface 1422. The second positioning surface is annular. The inner ring contour of the second positioning surface is connected to the end of the second positioning outer ring surface 14211 away from the first end of the iron ring. The second positioning surface abuts against the end of the second fixing ring away from the first end of the iron ring.

[0125] In some embodiments, reference Figure 12 and Figure 13 The hub 1 includes magnets 15. Several magnets 15 are present. The magnets 15 are disposed on the inner annular surface of the magnetic ring. The magnets can be attached to the inner annular surface of the magnetic ring.

[0126] In some embodiments, reference Figure 12 and Figure 13 Furthermore, a vehicle is proposed. The vehicle includes the wheel hub described in the above embodiments. The vehicle includes an axle 21. The vehicle includes a stator 22. The stator 22 is fitted onto the axle 21. A first end cap is fitted onto the axle 21. A second end cap is fitted onto the axle 21. The stator 22 is disposed between the first end cap and the second end cap. A magnetic coil 11 is fitted onto the stator. A magnet 15 is located between the stator and the magnetic coil.

[0127] In some embodiments, reference Figure 12 and Figure 13 The first end cap has a first mounting hole 1414. The axle 21 is inserted into the first mounting hole.

[0128] refer to Figure 12 and Figure 13 The vehicle includes a first bearing 23. The first bearing is sleeved on the axle. The first bearing is located in a first mounting hole.

[0129] In some embodiments, reference Figure 12 and Figure 13 The second end cap is provided with a second mounting hole 1424. The wheel axle is inserted into the second mounting hole.

[0130] refer to Figure 12 and Figure 13 The vehicle includes a second bearing 24. The second bearing is sleeved on the axle. The second bearing is located within a second mounting hole.

[0131] 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., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In the specification of this application, 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.

[0132] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A wheel hub, characterized in that, include: A magnetic guide ring, wherein the magnetic guide ring is arranged in a ring shape; along the axial direction of the hub, the magnetic guide ring includes a first end of an iron ring and a second end of an iron ring arranged opposite to each other; A rim, the rim being arranged in a ring shape, the rim being fitted around the outer side of the magnetic guide ring; the rim comprising: The connecting portion is arranged in a ring shape; along the axial direction of the hub, the connecting portion includes a first end and a second end of the connecting portion disposed opposite to each other; Wherein, the first end of the connecting part is welded to the magnetic ring to form a first weld; the second end of the connecting part is welded to the magnetic ring to form a second weld; the first weld and the second weld are spaced apart along the axial direction of the hub; A retaining ring, wherein the retaining ring is arranged in a ring shape and is fixedly connected to the magnetic ring; there are two retaining rings. The two fixing rings are a first fixing ring and a second fixing ring, respectively; along the axial direction of the hub, the first fixing ring is located on the side of the first weld away from the second weld, and the second fixing ring is located on the side of the second weld away from the first weld; The first end cap is fixedly connected to the first fixing ring; The second end cap is fixedly connected to the second fixing ring.

2. The wheel hub according to claim 1, characterized in that, The retaining ring is sleeved on the magnetic ring; along the radial direction of the hub, the retaining ring is located between the magnetic ring and the rim.

3. The wheel hub according to claim 2, characterized in that, The magnetic ring includes a first iron ring, a second iron ring, and a third iron ring; along the axial direction of the hub, the first iron ring, the second iron ring, and the third iron ring are arranged sequentially. The second iron ring segment includes an outer ring surface, which is located on the outside of the second iron ring segment. Along the radial direction of the hub, both the first and third iron ring sections are located inside the outer ring surface of the second iron ring. The connecting part is sleeved on the second section of iron ring, and the second section of iron ring is connected to the first end and the second end of the connecting part by welding; The first fixing ring is fitted onto the first section of the iron ring, and the second fixing ring is fitted onto the third section of the iron ring.

4. The wheel hub according to claim 3, characterized in that, The end of the first fixing ring near the second fixing ring abuts against the end of the second iron ring away from the second end of the iron ring; The end of the second fixing ring near the first fixing ring abuts against the end of the second iron ring away from the first end of the iron ring.

5. The wheel hub according to any one of claims 1-4, characterized in that, The first end cap is provided with a first positioning ring, which is arranged in a ring shape and is inserted into the magnetic ring. The first end cap is provided with a first positioning surface, which is arranged in a ring shape and abuts against the end of the first fixing ring away from the second end of the iron ring.

6. The wheel hub according to any one of claims 1-4, characterized in that, The second end cap is provided with a second positioning ring, which is arranged in a ring shape and is inserted into the magnetic ring. The second end cap is provided with a second positioning surface, which is arranged in a ring shape and abuts against the end of the second fixing ring away from the first end of the iron ring.

7. The wheel hub according to any one of claims 1-4, characterized in that, The fixing ring and the magnetic ring are connected by welding.

8. The wheel hub according to any one of claims 1-4, characterized in that, Of the fixed ring and the magnetic ring, one has a raised rib and the other has a groove. The raised rib is inserted into the groove and the raised rib and the groove are interference fit to fix the fixed ring and the magnetic ring.

9. The wheel hub according to any one of claims 1-4, characterized in that, The inner ring surface of the magnetic coil is provided with a first connecting hole; The wheel hub includes: A first connector is inserted into the first connecting hole, and the first connector connects the magnetic ring and the fixing ring.

10. A vehicle, characterized in that, The wheel hub includes any one of claims 1-9.

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