CN216579962U

CN216579962U - Wheel hub of electric vehicle

Info

Publication number: CN216579962U
Application number: CN202123047025.1U
Authority: CN
Inventors: 朱彤
Original assignee: Linhai Jufeng Machinery Co ltd
Current assignee: Linhai Jufeng Machinery Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-24
Anticipated expiration: 2031-12-06

Abstract

The utility model belongs to the technical field of electric vehicle accessories, and particularly relates to a hub of an electric vehicle, which comprises a rim; the central base is arranged in the wheel rim and is used for connecting an axle of the electric vehicle; the wheel disc assembly further comprises a plurality of spokes which are independently arranged between the wheel rim and the central base and are used for connecting the wheel rim and the central base; the inner end of the spoke is provided with an arc-shaped surface, and the arc-shaped surface is attached to and fixed on the circumferential surface of the central base. Thereby through independently handling the spoke, make every spoke homoenergetic independently produce to the producer can adopt inseparabler, more orderly arrangement mode processing department spoke on raw and other materials, and then more closely the space of further utilization raw and other materials, makes a raw and other materials can produce more spokes, lets the production of spoke more high-efficient and convenient. Meanwhile, the generation of waste materials can be reduced, and the production cost is reduced.

Description

Wheel hub of electric vehicle

Technical Field

The utility model relates to the technical field of electric vehicle accessories, in particular to a hub of an electric vehicle.

Background

Existing wheels typically consist of a metal rim with a tire mounted on its outer surface, a hub to which the wheel's rotating shaft is coupled, and spokes connecting the hub to the rim.

However, the conventional spoke, which is usually formed integrally with a central base, such as the spoke of chinese patent application No. 201210552124.1, has the disadvantage that it can be processed only according to a predetermined structure when the spoke is manufactured, so that the utilization rate of raw materials is too low, and a lot of waste materials which cannot be reused are generated when a pair of spokes are manufactured.

Disclosure of Invention

The utility model aims to provide a hub of an electric vehicle.

The purpose of the utility model is realized as follows:

a wheel hub of an electric vehicle comprises

A rim;

the central base is arranged in the wheel rim and is used for connecting an axle of the electric vehicle;

the wheel disc assembly further comprises a plurality of spokes which are independently arranged between the wheel rim and the central base and are used for connecting the wheel rim and the central base;

the inner end of the spoke is provided with an arc-shaped surface, and the arc-shaped surface is attached to and fixed on the circumferential surface of the central base.

Preferably, the outer ends of the spokes are welded on the rim, and the arc-shaped surfaces of the inner ends of the spokes are welded with the circumferential surface of the central base.

Preferably, the cross-sectional shape of the central base is circular, and the arc-shaped surface at the inner end of the spoke is a concave arc surface so as to be matched with the circumferential surface of the central base.

Preferably, the radian of the arc surface at the inner end of the spoke is 1-1.25.

Preferably, the spoke comprises an inner end arc surface, an outer end arc surface, a first corner surface, a second corner surface, a first smooth-extending surface and a second smooth-extending surface; the first corner surface and the second corner surface are symmetrically arranged on two sides of the inner end arc surface, and the first consequent extension surface and the second consequent extension surface are symmetrically arranged on two sides of the outer end arc surface; the first consequent surface is connected with the first corner surface; the second consequent surface is connected with the second corner surface;

the included angle between the first corner surface and the inner end arc surface is 80-90 degrees;

the length of the first corner surface is 10mm-20 mm;

the radian of the outer end arc surface is 0.8-1.

Preferably, the inner end arc surface, the outer end arc surface, the first corner surface, the second corner surface, the first consequent extension surface and the second consequent extension surface are bent towards the same side and are connected into a whole end to end.

Preferably, the width of the inner end of the spoke is greater than the width of the outer end.

Preferably, the spokes are fixedly arranged on the periphery of the central base in a circumferential array by taking the axis of the central base as an axis.

Preferably, the number of the spokes is three, and the angle between two adjacent spokes is 120 degrees.

Preferably, an axle mounting portion is arranged in the central base, and a mounting cavity for mounting the brake assembly is formed in the periphery of the axle mounting portion.

Compared with the prior art, the utility model has the outstanding and beneficial technical effects that:

1. the spoke independent processing method enables each spoke to be produced independently, so that a producer can process spokes on raw materials in a tighter and more orderly arrangement mode, further utilizes the space of the raw materials, enables one raw material to produce more spokes, and enables the production of the spokes to be more efficient and convenient. Meanwhile, the generation of waste materials can be reduced, and the production cost is reduced.

Simultaneously, the arc-shaped surface of the spoke enables the spoke to be more tightly connected with the central base, and meanwhile, the spoke is enabled to be fixed on the central base through the matching and the guiding between the arc-shaped surface and the peripheral surface of the central base, the central line of the spoke can always accurately face the center of the central base, and the spoke can be accurately positioned on the central base.

Drawings

Fig. 1 is a schematic front structural view of embodiment 1.

Fig. 2 is a schematic back structure diagram of embodiment 1.

Fig. 3 is an exploded view of example 1.

Fig. 4 is a schematic structural view of the spoke.

Fig. 5 is a schematic structural view of embodiment 2.

Fig. 6 is a schematic structural view of embodiment 3.

Reference numerals: 1. a rim; 2. a central base; 3. a spoke; 4. an arc-shaped surface; 5. an axle mounting portion; 6. a mounting cavity; 7. an outer end arc surface; 8. a first corner surface; 9. a second corner surface; 10. a first planar surface; 11. a second smooth surface; 12. the inner end is a circular arc surface.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 to 3, a hub for an electric vehicle includes a rim 1, a center base 2, and a plurality of spokes 3. The rim 1 is used for mounting and supporting a tire. A central base 2 is provided inside said rim 1 for connection to the axle of the electric vehicle. The spokes 3 are independently arranged between the rim 1 and the central base 2 and are used for connecting the rim 1 and the central base 2.

The conventional spokes 3 are generally formed integrally with the central base 2 and can be manufactured only according to a predetermined structure, so that the utilization rate of raw materials is too low, and a large amount of waste materials which cannot be reused are generated in manufacturing a pair of spokes 3. And this embodiment makes every spoke 3 homoenergetic independently produce through handling spoke 3 independently to the producer can adopt inseparabler, more orderly arrangement mode processing department spoke 3 on raw and other materials, and then more near the space of further utilizing raw and other materials, makes a raw and other materials can produce more spoke 3, lets spoke 3's production high-efficient and convenient more. Meanwhile, the generation of waste materials can be reduced, and the production cost is reduced.

With reference to fig. 1 to 4, the inner end of the spoke 3 has an arc surface 4, and the arc surface 4 is attached and fixed to the circumferential surface of the central base 2. Thereby the arcwall face 4 through spoke 3 makes being connected between spoke 3 and the central pedestal 2 inseparabler, simultaneously through cooperation and guide between the global both of arcwall face 4 and central pedestal 2, makes spoke 3 fix when central pedestal 2, and the central line of spoke 3 can be accurate all the time towards the center of central pedestal 2, realizes spoke 3 at the accurate location of central pedestal 2.

Further, welding or clamping and bolt fixing connection can be adopted between the spoke 3 and the rim 1 and between the spoke 3 and the central base 2. The outer end of the spoke 3 is preferably welded on the rim 1, and the arc-shaped surface 4 at the inner end of the spoke 3 is welded on the peripheral surface of the central base 2, so that the connection strength between the spoke 3 and the rim 1 and between the spoke 3 and the central base 2 is enhanced to a greater extent in a welding mode, and the use of the hub is prevented from being influenced by the deviation of a plurality of independent spokes 3.

Further, referring to fig. 1 to 4, the cross-sectional shape of the central base 2 is preferably circular, that is, the circumferential surface thereof is a circular arc surface. The arc surface 4 at the inner end of the spoke 3 is an inwards concave arc surface which is matched with the circumferential surface of the central base 2, so that the central base 2 and the spoke 3 are tightly attached. Wherein the radian of the arc surface is preferably 1-1.25.

The spoke 3 comprises an inner end arc surface 12, an outer end arc surface 7, a first corner surface 8, a second corner surface 9, a first smooth extension surface 10 and a second smooth extension surface 11. The first corner surface 8 and the second corner surface 9 are symmetrically arranged on two sides of the inner end circular arc surface 12. The first consequent extension surface 10 and the second consequent extension surface 11 are symmetrically arranged at two sides of the outer end circular arc surface 7. The first consequent surface 10 is connected to the first corner surface 8 and the second consequent surface 11 is connected to the second corner surface 9. The included angle between the first corner surface 8 and the inner end arc surface 12 is preferably 80-90 degrees, the length of the first corner surface 8 is preferably 10-20 mm, and the radian of the outer end arc surface 7 is preferably 0.8-1.

Furthermore, the inner end arc surface 12, the outer end arc surface 7, the first corner surface 8, the second corner surface 9, the first consequent extension surface 10 and the second consequent extension surface 11 are bent towards the same side and are connected into a whole end to end.

Therefore, the rim 1 and the central base 2 are tightly attached through the structures of the inner end arc surface 12 and the outer end arc surface 7 of the spoke, and the strength and the impact resistance of the spoke 3 are improved through the self mechanisms and the connection structures of the first corner surface 8, the second corner surface 9, the first extending surface 10 and the second extending surface 11.

With reference to fig. 1 and 4, since the central base 2 is the mounting location of the axle of the electric vehicle, and the peripheral side of the central base 2 is always stressed, the width of the inner end of the spoke 3 in this embodiment is greater than the width of the outer end, so that the inner end of the spoke 3 connected with the central base 2 has higher strength, and can bear larger and more durable acting force, i.e., improve the stability of the normal stress point of the hub.

As shown in fig. 1, the spokes 3 are preferably arranged in a circumferential array around the central base 2 with the axis of the central base 2 as the axis, so as to be more beautiful, evenly distributed and evenly stressed. In addition, the manufacturer can also choose the number of spokes 3 freely according to the needs of the user, for example, three, four or even five spokes can be chosen to ensure the strength of the connection between the spokes 3 and the rim 1 and the central base 2.

As shown in fig. 1, the number of the spokes 3 in the present embodiment is preferably three, and the angle between two adjacent spokes 3 is 120 degrees.

With reference to fig. 1 to 3, an axle mounting portion 5 is disposed in the central base 2, and the axle mounting portion 5 is preferably a cylinder, and the cylinder is sleeved on the cylinder to mount the wheel hub on the electric vehicle. The week side of axletree installation department 5 then the shaping has a mounting cavity 6 that is used for installing brake assembly, and the brake assembly that preferably drum stopped in this embodiment, drum brake assembly can outwards expand and lean on the inner wall that leans on mounting cavity 6 when the electric motor car brakes, realizes the brake through frictional force.

Example 2:

as shown in fig. 5, this embodiment is substantially the same as embodiment 1 except that the number of the spokes 3 is four, and the angle between two adjacent spokes 3 is 90 degrees.

Example 3:

as shown in fig. 6, this embodiment is substantially the same as embodiment 1 except that the number of spokes 3 is five and the angle between two adjacent spokes 3 is 72 degrees.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A wheel hub of an electric vehicle comprises

A rim (1);

a central base (2) arranged inside the rim (1) for connecting the axle of an electric vehicle;

the wheel is characterized by further comprising a plurality of spokes (3) which are independently arranged between the rim (1) and the central base (2) and are used for connecting the rim and the central base;

the inner end of the spoke (3) is provided with an arc-shaped surface (4), and the arc-shaped surface (4) is attached to and fixed on the circumferential surface of the central base (2).

2. The hub for an electric vehicle of claim 1, wherein: the outer end of the spoke (3) is welded on the rim (1), and the arc-shaped surface (4) at the inner end of the spoke (3) is welded with the circumferential surface of the central base (2).

3. The hub for an electric vehicle of claim 1, wherein: the section shape of central pedestal (2) is circular, the arcwall face (4) of the inner of spoke (3) are the arc surface of indent to the adaptation global of central pedestal (2).

4. A hub for an electric vehicle according to claim 3, wherein: the radian of the arc surface at the inner end of the spoke is 1-1.25.

5. The hub for an electric vehicle of claim 4, wherein: the spoke comprises an inner end arc surface (12), an outer end arc surface (7), a first corner surface (8), a second corner surface (9), a first sequential extension surface (10) and a second sequential extension surface (11); the first corner surface (8) and the second corner surface (9) are symmetrically arranged on two sides of the inner end arc surface (12), and the first consequent extension surface (10) and the second consequent extension surface (11) are symmetrically arranged on two sides of the outer end arc surface (7); the first consequent surface (10) is connected with the first corner surface (8); the second consequent plane (11) is connected with the second corner plane (9);

the included angle between the first corner surface (8) and the inner end arc surface (12) is 80-90 degrees;

the length of the first corner surface (8) is 10mm-20 mm;

the radian of the outer end arc surface (7) is 0.8-1.

6. The hub for an electric vehicle of claim 5, wherein: the inner end arc surface (12), the outer end arc surface (7), the first corner surface (8), the second corner surface (9), the first sequential extending surface (10) and the second sequential extending surface (11) are bent towards the same side and are connected into a whole end to end.

7. The hub for an electric vehicle as set forth in claim 1, wherein: the width of the inner end of the spoke (3) is larger than that of the outer end.

8. A hub for an electric vehicle according to any one of claims 1 to 6, wherein: the spokes (3) are fixedly arranged on the peripheral side of the central base (2) in a circumferential array mode by taking the axis of the central base (2) as an axis.

9. The hub for an electric vehicle of claim 8, wherein: the number of the spokes (3) is three, and the angle between two adjacent spokes (3) is 120 degrees.

10. A hub for an electric vehicle according to any one of claims 1 to 6, wherein: be provided with axletree installation department (5) in central authorities base (2), the week side shaping of axletree installation department (5) has installation cavity (6) that are used for installing brake assembly.