WO2020228311A1

WO2020228311A1 - Wheel hub assembly and electric vehicle provided with same

Info

Publication number: WO2020228311A1
Application number: PCT/CN2019/124616
Authority: WO
Inventors: 嵇鑫健; 黄东升; 丁伟; 邢国玺
Original assignee: 纳恩博（常州）科技有限公司
Priority date: 2019-05-15
Filing date: 2019-12-11
Publication date: 2020-11-19
Also published as: CN210211898U

Abstract

Disclosed in the present application are a wheel hub assembly and an electric vehicle provided with same, the wheel hub assembly comprising: a wheel hub; an annular wheel rim, the wheel rim being arranged coaxially to the wheel hub and being positioned on the outer peripheral side of the wheel hub; a plurality of spokes, the plurality of spokes all being arranged between the wheel hub and the wheel rim, and the plurality of spokes being arranged at intervals along the circumferential direction of the wheel hub; and a vibration-absorbing material member, the vibration-absorbing material member being filled between the wheel hub, the wheel rim, and the plurality of spokes. In the wheel hub assembly of the present application, by means of arranging the plurality of spokes at intervals in the circumferential direction between the wheel hub and the annular wheel rim, and filling the vibration-absorbing material between the wheel hub, the wheel rim, and the plurality of spokes, when the wheel hub assembly is used in an electric vehicle, the wheel hub assembly can effectively alleviate impact whilst bearing the transfer of the load between the tyre and the vehicle body, improving the riding comfort.

Description

Wheel hub assembly and electric vehicle with same

This application claims the priority of a patent application filed to the State Intellectual Property Office of China on May 15, 2019 with the application number 201920703725.5 and the invention title "Wheel hub assembly and electric vehicle with it".

Technical field

This application relates to the field of vehicle technology, in particular to a wheel hub assembly and an electric vehicle with the same.

Background technique

In the related art, the hubs of miniature electric vehicles such as electric bicycles and scooters are rigid parts. Although such rigid hubs can well support the transmission of load between the tire and the body, they cannot effectively reduce the impact. Improve riding comfort.

Utility model content

This application aims to solve at least one of the technical problems existing in the prior art. For this reason, one purpose of the present application is to provide a wheel hub assembly, which can effectively reduce the impact while carrying the load transfer between the tire and the vehicle body.

Another purpose of this application is to provide an electric vehicle with the above-mentioned hub assembly.

The hub assembly according to the embodiment of the first aspect of the present application includes: a hub; an annular rim, the rim and the hub are arranged coaxially and located on the outer peripheral side of the hub; a plurality of spokes, the plurality of spokes are all arranged between the hub and the rim, And a plurality of spokes are arranged at intervals along the circumferential direction of the hub; the vibration absorbing material piece is filled between the hub, the rim and the multiple spokes.

According to the hub assembly of the embodiment of the present application, a plurality of spokes arranged circumferentially spaced between the hub and the annular rim are arranged, and vibration-absorbing materials are filled between the hub, the rim and the plurality of spokes. When the hub assembly is used In the case of electric vehicles, the wheel hub assembly can effectively reduce the shock and improve the riding comfort while carrying the load transfer between the tire and the body.

According to some embodiments of the present application, each spoke is formed in a curved shape that is bent toward one side in the circumferential direction of the hub.

According to some embodiments of the present application, each spoke is formed in an arc shape curved toward one side in the circumferential direction of the hub.

According to some embodiments of the present application, the plurality of spokes are all bent toward the same side in the circumferential direction of the hub.

According to some embodiments of the present application, each spoke deviates from the radial direction of the hub from the inside to the outside.

According to some embodiments of the present application, the inner end of each spoke is connected to the outer peripheral surface of the hub, and the outer end of each spoke is connected to the inner peripheral surface of the rim.

According to some embodiments of the present application, the outer end of each spoke has a cut edge, and the cut edge is connected to the inner circumferential surface of the rim.

According to some embodiments of the present application, the cut edge fits the rim.

According to some embodiments of the present application, the trimming has a planar structure or an arc surface that matches the inner peripheral surface of the rim.

According to some embodiments of the present application, each spoke is formed as a sheet structure.

According to some embodiments of the present application, the vibration-absorbing material piece is a rubber piece or a PU piece.

According to some embodiments of the present application, a plurality of spokes are embedded in the vibration-absorbing material piece.

According to some embodiments of the present application, along the direction from the hub to the rim, each spoke gradually deviates from the radial direction of the hub.

The hub assembly according to the embodiment of the first aspect of the present application includes: a hub; an annular rim, the rim and the hub are arranged coaxially and located on the outer peripheral side of the hub; a plurality of spokes, the plurality of spokes are all arranged between the hub and the rim, And a plurality of spokes are arranged at intervals along the circumference of the hub; the hub, the rim and the plurality of spokes jointly define a filling space, and the vibration absorbing material is filled in the filling space.

The electric vehicle according to the embodiment of the second aspect of the present application includes the wheel hub assembly according to the embodiment of the first aspect of the present application.

The additional aspects and advantages of the present application will be partially given in the following description, and some will become obvious from the following description, or be understood through the practice of the present application.

Description of the drawings

The above and/or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 is an exploded view of a wheel hub assembly according to an embodiment of the present application;

Fig. 2 is a front view of a hub assembly according to an embodiment of the present application.

Reference signs:

100: Wheel hub assembly;

1: Wheel hub;

2: Rim; 3: Spokes; 31: Trimming;

4: Vibration-absorbing material.

Detailed ways

The embodiments of the present application are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present application are described in detail below.

Hereinafter, a hub assembly 100 according to an embodiment of the present application will be described with reference to FIGS. 1 and 2. The hub assembly 100 can be applied to electric vehicles such as electric bicycles (not shown in the figure). In the following description of the present application, the application of the hub assembly 100 to an electric bicycle is taken as an example for description. Of course, those skilled in the art can understand that the hub assembly 100 can also be applied to other types of electric vehicles, such as scooters.

As shown in FIG. 1 and FIG. 2, the hub assembly 100 according to the embodiment of the first aspect of the present application includes a hub 1, a rim 2, a plurality of spokes 3, and a vibration absorbing material member 4.

Specifically, the rim 2 is formed in an annular shape, the annular rim 2 is arranged coaxially with the hub 1, and the rim 2 is located on the outer peripheral side of the hub 1. At this time, the hub 1 and the rim 2 are nested from the inside to the outside, and the outer circumferential surface of the hub 1 and the inner circumferential surface of the rim 2 are spaced apart from each other.

The multiple spokes 3 are all arranged between the hub 1 and the rim 2, and the multiple spokes 3 are arranged at intervals along the circumferential direction of the hub 1. In the description of this application, "plurality" means two or more. Therefore, by arranging a plurality of spokes 3 arranged at intervals in the circumferential direction, the plurality of spokes 3 have a certain rigidity. When the hub assembly 100 is applied to an electric vehicle such as an electric bicycle, it can well support the electric vehicle such as an electric bicycle. Load transfer between tires and body. For example, in the examples of FIGS. 1 and 2, a plurality of spokes 3 are evenly spaced along the circumferential direction of the hub 1 and the rim 2 so that the entire hub assembly 100 is evenly stressed. It can be understood that the specific arrangement of the plurality of spokes 3 between the hub 1 and the rim 2 can be specifically set according to actual requirements to better meet actual applications.

Here, it should be noted that 12 spokes 3 are shown in Figures 1 and 2 for illustrative purposes, but after reading the following technical solutions, ordinary technicians can obviously understand that this solution can be applied to other numbers. In the technical solution of the spoke 3, this also falls within the protection scope of this application.

The vibration absorbing material 4 is filled between the hub 1, the rim 2 and the plurality of spokes 3. For example, referring to FIGS. 1 and 2, the vibration-absorbing material piece 4 fills the space defined by the hub 1, the rim 2 and the plurality of spokes 3 together. Thus, by filling the vibration-absorbing material piece 4 between the hub 1, the rim 2 and the plurality of spokes 3, the vibration-absorbing material piece 4 can absorb impact energy and reduce vibration, thereby improving the riding comfort of an electric vehicle such as an electric bicycle.

According to the hub assembly 100 of the embodiment of the present application, a plurality of spokes 3 arranged at intervals in the circumferential direction are arranged between the hub 1 and the annular rim 2, and a vibration absorbing material is filled between the hub 1, the rim 2 and the plurality of spokes 3. Part 4, when the wheel hub assembly 100 is applied to an electric vehicle such as an electric bicycle, the wheel hub assembly 100 can effectively reduce the shock and improve the riding comfort while carrying the load transfer between the tire and the vehicle body.

According to some embodiments of the present application, referring to FIG. 1 in conjunction with FIG. 2, each spoke 3 is formed in a curved shape that is curved toward one side in the circumferential direction of the hub 1. For example, in the examples of FIGS. 1 and 2, each spoke 3 is formed in a curved shape that is curved in a counterclockwise direction. Thus, through the above arrangement, it can be further ensured that the wheel hub assembly 100 can well carry the load transfer between the tire and the vehicle body, and during the load process of the wheel hub assembly 100, the force of each spoke 3 can be made uniform. Towards the direction of its bend, the direction is clear.

Optionally, each spoke 3 is formed in an arc shape curved toward the above-mentioned one side in the circumferential direction of the hub 1. Therefore, the structure is simple and easy to implement. But it is not limited to this. It can be understood that the specific shape of each spoke 3 can be specifically set according to actual requirements to better meet actual requirements.

Further, as shown in FIGS. 1 and 2, the plurality of spokes 3 are all bent toward the same side in the circumferential direction of the hub 1. Therefore, it can be further ensured that the wheel hub assembly 100 can well carry the load transmission between the tire and the vehicle body, and the overall appearance of the wheel hub assembly 100 is beautiful.

According to some embodiments of the present application, referring to FIGS. 1 and 2, each spoke 3 deviates from the radial direction of the hub 1 from the inside to the outside. For example, in the examples of FIGS. 1 and 2, each spoke 3 deviates from the inner to the outer in a counterclockwise radial direction of the hub 1. Of course, the present application is not limited to this, and each spoke 3 can also deviate from the inner to the outer in the radial direction of the hub 1 clockwise (not shown in the figure). Therefore, by setting each spoke 3 to deviate from the radial direction of the hub 1 from the inside to the outside, during the load process of the hub assembly 100, it can be better ensured that the force of each spoke 3 can be bent toward its bending. The direction is clearer.

According to some specific embodiments of the present application, as shown in FIGS. 1 and 2, the inner end of each spoke 3 is connected to the outer peripheral surface of the hub 1, and the outer end of each spoke 3 is connected to the inner peripheral surface of the rim 2. Here, it should be noted that the direction "inner" can be understood as a direction toward the center of the hub 1, and the opposite direction is defined as "outer", that is, a direction away from the center of the hub 1. Therefore, by setting the two ends of each spoke 3 to be connected to the hub 1 and the rim 2 respectively, the entire hub assembly 100 has sufficient rigidity and can further and better bear the load transfer between the tire and the vehicle body. . Specifically, along the direction from the hub 1 to the rim 2, each spoke 3 gradually deviates from the radial direction of the hub 1. Further, along the direction from the hub 1 to the rim 2, each spoke 3 gradually deviates from the radial direction of the hub 1 in a counterclockwise direction.

Optionally, the vibration-absorbing material member 4 is a rubber member or a PU (polyurethane, Chinese name is polyurethane, which is an abbreviation of polyurethane, which is a polymer material), or the like. But it is not limited to this.

When the hub assembly 100 is assembled, a plurality of spokes 3 can be fixed between the hub 1 and the rim 2 by a jig (not shown), and then the space defined by the hub 1 and the rim 2 can be sealed by the jig, and then Raw materials such as rubber are injected into the space to be vulcanized to form the vibration absorbing material piece 4. Here, it should be noted that the specific structure and working principle of the jig and the definition of vulcanization are well known to those skilled in the art, and will not be repeated here.

Further, the outer end of each spoke 3 has a cut edge 31, and the cut edge 31 is connected to the inner peripheral surface of the rim 2, as shown in FIGS. 1 and 2. Therefore, by setting the trimming 31, the outer end of the spoke 3 can contact and connect with the inner peripheral surface of the rim 2 through the trimming 31, and the contact area between the spoke 3 and the rim 2 is relatively large, so that the spoke 3 can be better. The ground is matched with the rim 2, and the relative position between the spokes 3 and the rim 2 can be more stable, thereby ensuring the working performance of the entire wheel hub assembly 100.

In order to ensure the connection strength between the spokes 3 and the rim 2, the cutting edge 31 is attached to the rim 2.

Specifically, the cutting edge 31 is a planar structure or an arc surface matching the inner peripheral surface of the rim 2.

Optionally, referring to FIGS. 1 and 2, each spoke 3 is formed as a sheet structure. As a result, the sheet-shaped spokes 3 can have a certain degree of elasticity, so that the load transmission between the bearing tire and the vehicle body can be better realized.

According to the wheel hub assembly 100 of the embodiment of the present application, by adopting a manner in which a plurality of spokes 3 are engaged with the vibration-absorbing material member 4, the wheel hub assembly 100 not only has sufficient rigidity to support the load transmission between the tire and the vehicle body, but also It has enough damping, can absorb impact energy and slow down vibration, that is to say, it can obtain the superior performance of matching stiffness and damping.

In order to more favorably absorb impact energy and reduce vibration, a plurality of spokes 3 are embedded in the vibration-absorbing material piece 4.

In specific implementation, the hub assembly in this embodiment includes: a hub 1; an annular rim 2. The rim 2 is coaxially arranged with the hub 1 and is located on the outer peripheral side of the hub 1; It is arranged between the hub 1 and the rim 2, and a plurality of spokes 3 are arranged at intervals along the circumference of the hub 1. The vibration-absorbing material piece 4, the hub 1, the rim 2 and the multiple spokes 3 jointly define a filling space, and the vibration-absorbing material piece 4 Fill in the filling space.

The electric vehicle, such as an electric bicycle, according to the embodiment of the second aspect of the present application, includes the hub assembly 100 according to the embodiment of the first aspect of the present application.

According to the electric vehicle such as electric bicycle of the embodiment of the present application, by adopting the above-mentioned wheel hub assembly 100, not only can the load transmission between the tire and the vehicle body be well supported, but also the cushioning shock can be effectively reduced, thereby improving the rider’s riding Comfort.

Other configurations and operations of the electric vehicle, such as the electric bicycle, according to the embodiments of the present application are known to those of ordinary skill in the art, and will not be described in detail here.

In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "Radial", "Circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply the device or The element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" etc. means to incorporate the implementation The specific features, structures, materials, or characteristics described by the examples or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

A wheel hub assembly, characterized in that it comprises:

Wheel hub (1);

An annular rim (2), the rim (2) is arranged coaxially with the hub (1) and located on the outer peripheral side of the hub (1);

A plurality of spokes (3), the plurality of spokes (3) are all arranged between the hub (1) and the rim (2), and the plurality of spokes (3) are along the hub (1) Circumferential interval setting;

A vibration-absorbing material piece (4), the vibration-absorbing material piece (4) being filled between the hub (1), the rim (2) and the plurality of spokes (3).
The hub assembly according to claim 1, wherein each of the spokes (3) is formed in a curved shape that is curved toward one side in the circumferential direction of the hub (1).
The hub assembly according to claim 2, wherein each of the spokes (3) is formed in an arc shape that is curved toward one side of the hub (1) in the circumferential direction.
The hub assembly according to claim 2, wherein the plurality of spokes (3) are all bent toward the same side in the circumferential direction of the hub (1).
The hub assembly according to any one of claims 1 to 4, characterized in that each spoke (3) deviates from the radial direction of the hub (1) from inside to outside.
The hub assembly of claim 1, wherein the inner end of each spoke (3) is connected to the outer peripheral surface of the hub (1), and the outer end of each spoke (3) It is connected with the inner peripheral surface of the rim (2).
The wheel hub assembly according to claim 6, wherein the outer end of each spoke (3) has a cut edge (31), and the cut edge (31) is connected to the inner circumference of the rim (2).面连接。 Surface connection.
The wheel hub assembly according to claim 7, characterized in that the cut edge (31) is attached to the rim (2).
The wheel hub assembly according to claim 7, characterized in that the cut edge (31) is a flat structure or an arc surface matched with the inner peripheral surface of the rim (2).
The wheel hub assembly according to claim 1, wherein each of the spokes (3) is formed as a sheet structure.
The wheel hub assembly according to claim 1, wherein the vibration-absorbing material member (4) is a rubber member or a PU member.
The hub assembly according to claim 1, wherein the plurality of spokes (3) are embedded in the vibration-absorbing material piece (4).
The hub assembly according to any one of claims 1 to 4, characterized in that, along the direction from the hub (1) to the rim (2), each spoke (3) gradually deviates from the hub (1) The radial direction.
A wheel hub assembly, characterized in that it comprises:

Wheel hub (1);

An annular rim (2), the rim (2) is arranged coaxially with the hub (1) and located on the outer peripheral side of the hub (1);

A plurality of spokes (3), the plurality of spokes (3) are all arranged between the hub (1) and the rim (2), and the plurality of spokes (3) are along the hub (1) Circumferential interval setting;

The vibration-absorbing material piece (4), the hub (1), the rim (2) and the plurality of spokes (3) jointly define a filling space, and the vibration-absorbing material piece (4) is filled in the filling space. In the space.
An electric vehicle, characterized by comprising the hub assembly according to any one of claims 1 to 14.