CN114655349A

CN114655349A - Electric scooter wheel and electric scooter with motor

Info

Publication number: CN114655349A
Application number: CN202011532291.0A
Authority: CN
Inventors: 钱静斌
Original assignee: Ningbo Liantuo Thinking Electronic Technology Co ltd
Current assignee: Ningbo Liantuo Thinking Electronic Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2022-06-24

Abstract

The invention discloses an electric scooter wheel with a motor and an electric scooter, wherein the wheel of the electric scooter comprises a wheel shaft, a motor and a wheel hub, and the motor comprises a stator, a rotor and a casing which are fixedly arranged on the wheel shaft; the shell is fixedly arranged outside the rotor and rotates along with the rotor; the hub comprises an annular component for sleeving a tire, a protective cover is arranged on the first end face of the annular component, the second end face of the annular component is open, and the motor is arranged in a cavity in the middle of the annular component from the opening; the hub is detachably fixed with the shell, and the wheel shaft extends outwards from the opening to one side; therefore, the wheel connecting device is not only suitable for the wheel connecting mode of a single-arm structure, but also enables the tire to be very easy to assemble, disassemble and maintain, is favorable for the fixed operation of the hub in the tire sheathing and stripping process, and improves the production efficiency of wheel installation.

Description

Electric scooter wheel and electric scooter with motor

Technical Field

The invention relates to the technical field of electric scooters, in particular to an electric scooter wheel with a motor.

Background

At present, the electric scooter has the functions of riding instead of walking, sports and entertainment, so the electric scooter is popular among people. The existing electric scooter comprises a front scooter body assembly, a front wheel assembly frame, a front wheel assembly, a pedal assembly, a rear wheel assembly frame and a rear wheel assembly.

The front wheel assembly and the rear wheel assembly are basically wheel hub motors which are designed in an integrated mode of wheel hubs and motors.

If the grant publication number is CN211969669U hub assembly and electric scooter, a hub assembly is disclosed, which comprises a tire assembly, a stator assembly, a rotor assembly, a first end cover assembly and a second end cover assembly; the rotor assembly comprises a cylindrical shell, a first end cover assembly and a second end cover assembly are sealed at two ends of the shell to form a sealed shell, the tire assembly is sleeved outside the shell, and two ends of the stator assembly are respectively in rotating connection with the first end cover assembly and the second end cover assembly.

If the license publication number is CN204947866U electric scooter hub motor, it is disclosed that the rotor assembly comprises a shell composed of a middle shell, a front cover and a rear cover, and the wheel cover is arranged outside the middle shell.

The utility model discloses a novel double pin electric scooter wheel hub as authorizing bulletin number CN211641709U, discloses that wheel hub motor includes left rim, right rim and stator fixed axle, and left rim and the symmetrical amalgamation of right rim form the casing of motor, also form the wheel hub of cover establishing the tire, and left rim and right rim are passed respectively at stator fixed axle both ends.

In the above documents, the hub is a casing for wrapping the motor core, and therefore, when the tire is replaced, the hub and the motor are required to be operated together, so that the tire is inconvenient to disassemble, assemble and maintain, and time and labor are wasted.

Disclosure of Invention

The invention aims to solve the technical problem of providing an electric scooter wheel with a motor, which is convenient to install, and further providing an electric scooter with the electric scooter wheel with the motor.

The technical scheme adopted by the invention for solving the technical problems is as follows: the electric scooter wheel with the motor comprises a wheel shaft, a motor and a wheel hub, wherein the motor comprises a stator, a rotor and a casing which are fixedly arranged on the wheel shaft; the shell is fixedly arranged outside the rotor and rotates along with the rotor; the wheel hub comprises an annular component for sleeving a tire, a protective cover is arranged on the first end face of the annular component, the second end face of the annular component is open, and the motor is arranged in a cavity in the middle of the annular component from the opening; the hub is detachably fixed with the shell, and the wheel shaft extends outwards from the opening towards one side.

The invention adopts a further preferable technical scheme for solving the technical problems as follows: the annular component comprises a ring body and limiting edges positioned at two axial ends of the ring body, and the limiting edges protrude out of the outer surface of the ring body.

The invention adopts a further preferable technical scheme for solving the technical problems as follows: the protective cover extends outwards along the axial direction of the annular part to form depth.

The invention adopts a further preferable technical scheme for solving the technical problems as follows: the protective cover is of a hollow structure, and the peripheral side part of the protective cover comprises a plurality of arc-shaped ribs which are mutually spaced.

The invention adopts a further preferable technical scheme for solving the technical problems as follows: the protective cover and the annular component are integrally formed.

The invention adopts a further preferable technical scheme for solving the technical problems as follows: the protective cover is connected to the casing through a bolt assembly, so that the hub and the casing are detachably fixed.

The invention adopts a further preferable technical scheme for solving the technical problems as follows: the annular part is sleeved at the middle section part of the casing, one end of the casing exceeds the second end surface to extend out of the opening, and the other end of the casing exceeds the first end surface and is contained in the protective cover.

The invention adopts a further preferable technical scheme for solving the technical problems as follows: the wheel shaft is in a hollow column shape, and the two ends of the wheel shaft are provided with the decorative covers.

The invention adopts a further preferable technical scheme for solving the technical problems as follows: the center of the outer end face of the protective cover is provided with a through hole, and the decorating covers of the wheel shafts positioned on the same side of the protective cover are accommodated in the through hole.

Another protection subject of the invention is: electric scooter, include electrified motor's electric scooter wheel.

Compared with the prior art, the invention has the advantages that the hub is detachably connected with the shell of the motor, so that the operation together with the heavy motor is not required, the disassembly, assembly and maintenance of the tire are very easy, the hub fixing operation in the tire sheathing and stripping process is facilitated, and the production efficiency of wheel installation is improved; meanwhile, a protective cover is arranged on one side of the wheel hub, and the wheel shaft extends outwards towards the other side of the wheel hub and then exceeds the tire so as to adapt to a wheel connection mode with a single-arm structure.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is a first schematic view of an electric scooter according to a preferred embodiment of the present invention;

FIG. 2 is a second schematic view of the electric scooter in accordance with a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a front wheel assembly of a preferred embodiment of the present invention

FIG. 4 is a first schematic view of a wheel of an electric scooter with a motor according to a preferred embodiment of the present invention;

FIG. 5 is a second schematic view of a wheel of an electric scooter with a motor according to a preferred embodiment of the present invention;

FIG. 6 is a third schematic view of a wheel of an electric scooter with a motor according to a preferred embodiment of the present invention;

FIG. 7 is a fourth schematic view of a wheel of an electric scooter with a motor according to a preferred embodiment of the present invention;

FIG. 8 is a cross-sectional view of a wheel of an electric scooter with a motor according to a preferred embodiment of the present invention;

FIG. 9 is an exploded view of a wheel of an electric scooter with a motor according to a preferred embodiment of the present invention;

FIG. 10 is an exploded view of a wheel of an electric scooter with a motor according to a preferred embodiment of the present invention;

FIG. 11 is a first structural view of a hub in accordance with a preferred embodiment of the present invention;

fig. 12 is a second structural view of the hub according to a preferred embodiment of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are used for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-2, the present embodiment provides an electric scooter including a frame assembly 100, a front wheel assembly 200, and a rear wheel assembly 300. The front wheel assembly 200 includes a front wheel body 201 and a front axle 202, and the rear wheel assembly 300 includes a rear wheel body 301 and a rear axle 302. Side a of frame assembly 100 is connected to front axle 202 by front support arm 101 and side B of frame assembly 100 is connected to rear axle 302 by rear support arm 102, with front support arm 101 and rear support arm 102 being separate from the A, B sides of frame assembly 100.

Compared with the traditional wheel assembly in a mode of connecting through a double-arm structure, the connecting mode of the single-arm structure eliminates torsion on two sides of the wheel assembly, so that the stability and flexibility of the wheel assembly are better. Meanwhile, the front supporting arm 101 and the rear supporting arm 102 are separated from A, B two sides of the frame assembly 100, so that the gravity center of the vehicle body is concentrated on the connecting line of the gravity centers of the front wheel assembly 200 and the rear wheel assembly 300, the structural layout is more reasonable, the balance of the vehicle body is better, and the stability of the electric scooter in the riding process is better.

In this embodiment, the front wheel assembly 200 and the rear wheel assembly 300 are electric scooter wheels with the motor 1, and specific embodiments of the front wheel assembly 200 and the rear wheel assembly 300 will be described below.

As shown in fig. 4-10, the electric scooter wheel with the motor 1 comprises a wheel shaft 10 and a wheel body 20, wherein the wheel body 20 comprises the motor 1, a hub 2 and a tire 3. The motor 1 comprises a stator fixed on a wheel axle 10, a rotor 4 and a casing 5. That is, the hub 10 in this embodiment is a motor shaft 10 extending from the motor 1.

It will be appreciated that the hub 10 is located centrally of the wheel body 20, the stator is disposed along the axis of the hub 10, the rotor 4 surrounds the periphery of the hub 10, and the housing 5 is fixed to the outside of the rotor 4 and rotates with the rotor 4.

As shown in fig. 11 and 12, the hub 2 includes an annular member 21 for receiving the tire 3, a protective cover 22 is disposed on a first end face a of the annular member 21, a second end face b of the annular member 21 is open, and the motor 1 with the axle 10 is coaxially installed into a cavity in the middle of the annular member 21 from the open; the hub 2 is detachably fixed to the housing 5, and the axle 10 extends outward from the opening toward one side.

It will be appreciated that the hub is provided with a shield on one side and the axle extends outwardly towards the other side of the hub so as to extend beyond the tyre to accommodate wheel connections of single arm construction.

Just because the motor 1 is provided with the casing 5 and the hub 2 and the casing 5 are detachably fixed. When mounting the wheel, the user first puts the tire 3 on the independent hub 2, then puts the motor 1 with the wheel axle 10 into the hub 2 with the tire 3 from the opening of the hub 2, and fixes the hub 2 and the housing 5, thereby completing the wheel assembly. Accordingly, when repairing the wheel and replacing the tire 3, the user first removes the hub 2 with the tire 3 from the housing 5, and then peels the tire 3 off the hub 2. Therefore, the motor 1 does not need to be operated together with the heavy motor, the tire 3 is easy to disassemble, assemble and maintain, the hub 2 is fixed and operated in the process of peeling the tire 3, and the production efficiency of wheel installation is improved.

In addition, the motor 1 and the hub 2 are separated, the motor 1 can be independently assembled, the two processes of assembling the motor 1 and sleeving the tire 3 can be simultaneously carried out, and the production efficiency of wheel installation is further improved.

And it should be understood that, compared with the structure that the hub 2 and the motor 1 are integrated, the motor 1 separated from the hub 2 in the embodiment has smaller weight and more regular appearance, which is beneficial to the maintenance operation of the motor 1.

As shown in the figure, the ring-shaped member 21 includes a ring body 6 and a limit edge 7 located at both axial ends of the ring body 6, and the limit edge 7 protrudes from the outer surface of the ring body 6. The tyre 3 is sleeved outside the ring body 6 in an interference manner and limited by the limiting edges 7 at the two sides. Meanwhile, the side edge of the tire 3 is extruded on the inner side of the limiting edge 7, so that the cavity of the tire 3 is in a sealed state, and the air pressure in the tire can be maintained for a long time.

As shown in fig. 11, preferably, an air hole 8 is provided at the junction of the ring body 6 and the limiting edge 7 near one side of the protecting cover 22 of the hub 2, and an air nozzle is provided at the first end a of the hub 2 and is communicated with the air hole 8. When tyre 3 cup joints on wheel hub 2, gas pocket 8 is located the cavity of tyre 3, and the air cock is located outside the cavity to the user can inflate or lose heart tyre 3 through the air cock.

Further preferably, as shown in fig. 8, the axle 10 is a shaft body 12 having a heat dissipation channel 11 in the middle, the heat dissipation channel 11 axially penetrates through the shaft body 12, and at least one end of the shaft body 12 extends out of the housing 5 to transfer heat inside the motor 1 to the outside through the heat dissipation channel 11.

Through heat dissipation channel 11's setting, can be with the outside transmission of a large amount of heats that motor 1 operation produced through the shaft 10 that passes its inside effectively fast, be favorable to thermal quick dissipation, avoid the long-time accumulation of the inside heat of motor 1, prevent that motor 1 temperature from continuously rising and motor 1's stability to guarantee electric scooter's normal use.

As shown in fig. 8, the heat dissipating channel 11 is a through hole, and the outer diameter of the axle body 12 varies according to the size of the wheel, so the inner diameter of the through hole varies accordingly. Preferably, the through hole is 1-10 cm. More preferably, the inner diameter of the through hole is 3-10 cm, so that the heat dissipation channel 11 has enough space for heat dissipation.

The wheel of the electric scooter with 11 inches is shown in the figure, the outer diameter of the shaft body 12 is 5-6 cm, and the inner diameter of the through hole is 3-4 cm. Thus, the axle 10 has a suitable wall thickness to ensure its strength, and also has a space for the heat dissipation channel 11 that is large enough to dissipate heat.

As shown in fig. 7 and 8, a threading hole through which a line can pass is formed in a side wall of the shaft body 12, and the threading hole is communicated with the heat dissipation channel 11. The threading holes include a first threading hole 18 on the shaft body 12 located outside the casing 5 and a second threading hole on the shaft body 12 located inside the casing 5. The signal line or the power cord that controller and battery in the electric scooter footboard were drawn forth can penetrate to heat dissipation channel 11 from first threading hole 18, then in leading into the inside stator of motor 1 or rotor 4 from the second threading hole.

Preferably, as shown in fig. 4 to 10, both ends of the wheel axle 10 are provided with the finishing covers, including the first finishing cover 13 at the end of the axle body 12 on the opening side of the hub 2 and the second finishing cover 14 at the end of the axle body 12 on the side of the shield 22 of the hub 2.

The first and second

decorative covers

13 and 14 are provided with heat radiation holes. The decorative cover 13 not only has a decorative effect, so that the appearance of the wheel is more attractive and tidy, but also has a heat dissipation effect, and the effect of avoiding poor heat dissipation or other faults caused by foreign matters entering the wheel shaft 10 is achieved.

In the present embodiment, as shown in fig. 1 to 3, the shaft body 12 at the open side of the hub 2 extends outward along the axial direction of the motor 1 and beyond the outer surface of the tire 3 for connection with the front support arm 101 or the rear support arm of the electric scooter. The shaft body 12 on the side of the shield 22 of the hub 2 slightly exceeds the end surface of the casing 5, and the length of the exceeding part is adapted to the second decorative cover 14 on the side, so that the decorative cover 13 is just sleeved outside the shaft body 12 exceeding the casing 5.

As shown in fig. 7, and the end surface of the housing 5 near the opening is provided with a projection structure for mounting the brake pad S, which is an annular boss 15 surrounding a through hole through which the motor shaft 10 is inserted.

Preferably, as shown in fig. 8, 9 and 11, the protection cover 22 extends outward along the axial direction of the ring part 21 to form a depth, the ring part 21 is sleeved on the middle section of the casing 5, one end of the casing 5 exceeds the second end face b to protrude from the opening, the other end of the casing 5 exceeds the first end face a, and the casing 5 and the axle 10 exceeding the first end face a are accommodated in the protection cover 22 having the depth.

Preferably, as shown in fig. 4, 6 and 12, the center of the outer end face of the protection cover 22 is provided with a through hole K, and the trim cover 13 of the axle 10 on the same side as the protection cover 22 extends into the through hole K and is accommodated in the through hole K, so that the trim cover 13 is substantially flush with the outer end face of the protection cover 22, thereby making the appearance neat and beautiful.

The protective cover 22 is a hollow structure, and the peripheral side portion thereof includes a plurality of arc ribs 16 spaced from each other. Therefore, the motor 1 is protected, the appearance is modified, and the heat dissipation of the motor 1 is not affected.

Preferably, in the present embodiment, the shield 22 is integrally formed with the annular member 21. Aluminum die casting is preferably used. Therefore, the weight is light, the process is simple, and the structure of the finished product can be diversified.

As shown in fig. 4 and 6, in the present embodiment, the protecting cover 22 is connected to the casing 5 by the bolt assembly 17, so that the hub 2 and the casing 5 can be detachably fixed.

Preferably, as shown in fig. 10 and 12, a circle of solid bodies is arranged on the periphery of the through hole in the center of the protective cover 22, and a plurality of first mounting holes T1 are distributed on the solid bodies. Correspondingly, a raised mounting part 19 is arranged on the end face of the machine shell 5 opposite to the protective cover 22, a second mounting hole T2 is arranged on the mounting part 19, and a bolt penetrates through the first mounting hole T1 and is screwed in the second mounting hole T2, so that the hub 2 and the machine shell 5 can be detachably fixed.

The electric scooter wheel with motor and the electric scooter provided by the invention are described in detail above, and the principle and the implementation of the invention are explained by applying specific examples in the present document, and the description of the above embodiments is only used to help understanding the invention and the core idea. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The electric scooter wheel with the motor is characterized by comprising a wheel shaft, a motor and a wheel hub, wherein the motor comprises a stator, a rotor and a casing which are fixedly arranged on the wheel shaft; the shell is fixedly arranged outside the rotor and rotates along with the rotor; the wheel hub comprises an annular component for sleeving a tire, a protective cover is arranged on the first end face of the annular component, the second end face of the annular component is open, and the motor is arranged in a cavity in the middle of the annular component from the opening; the hub is detachably fixed with the shell, and the wheel shaft extends outwards from the opening towards one side.

2. The motorized electric scooter wheel as claimed in claim 1, wherein the ring member comprises a ring body and a retaining rim at two axial ends of the ring body, the retaining rim protruding from an outer surface of the ring body.

3. The motorized electric scooter wheel as claimed in claim 1, wherein the shield is formed to extend outward in the axial direction of the ring member to a depth.

4. The electric scooter wheel with motor according to claim 3, wherein said protective cover is a hollow structure, and the peripheral portion of the protective cover comprises a plurality of arc ribs spaced from each other.

5. The motorized electric scooter wheel as claimed in claim 1, wherein the shield is integrally formed with the annular member.

6. The motorized electric scooter of claim 1, wherein the shield is attached to the housing by a bolt assembly to removably secure the hub to the housing.

7. The electric scooter wheel with motor according to claim 3, wherein said ring member is fitted over a middle portion of said housing, one end of said housing is beyond said second end surface to extend out from said opening, and the other end of said housing is beyond said first end surface and is accommodated in said cover.

8. The electric scooter wheel with motor according to claim 1, wherein the wheel shaft is hollow and cylindrical, and the two ends of the wheel shaft are provided with the decorative covers.

9. The motorized electric scooter wheel according to claim 8, wherein the outer end surface of the shield has a through hole at the center thereof, and the trim cover of the wheel axle on the same side of the shield is received in the through hole.

10. Electric scooter, characterized in that it comprises a motorized electric scooter wheel according to any one of claims 1-9.