CN215733778U

CN215733778U - Integrated electric vehicle driving wheel hub

Info

Publication number: CN215733778U
Application number: CN202122178423.0U
Authority: CN
Inventors: 潘海如
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-01
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses an integrated electric vehicle driving wheel hub, which comprises a wheel rim and a wheel hub motor, wherein the wheel hub motor comprises a first protective shell, a second protective shell, a motor shaft, a stator assembly and a permanent magnet, the middle part of the motor shaft is fixedly connected with the stator assembly, the first protective shell and the second protective shell are both disc-shaped and are oppositely arranged, the periphery of one side, close to the second protective shell, of the first protective shell is integrally provided with a magnetic conduction ring in a forming ring manner, the middle parts of the first protective shell and the second protective shell are both provided with mounting holes, the stator assembly is positioned between the first protective shell and the second protective shell, and the motor shaft is in adaptive connection with the mounting holes through bearings; the permanent magnet is fixedly connected to the inner peripheral side of the magnetic conduction ring and correspondingly positioned on the outer periphery of the stator assembly, and the inner ring periphery of the rim is tightly attached to the outer ring periphery of the magnetic conduction ring and is welded and fixed; the second protective shell is fixedly connected with the rim at the peripheral edge, and the wheel hub has the advantages of simple structure, convenient installation and use, few working procedures, material saving and mass production.

Description

Integrated electric vehicle driving wheel hub

Technical Field

The utility model relates to the field of electric vehicle hubs, in particular to an integrated electric vehicle driving wheel hub.

Background

The electric car refers to an electric bicycle, a driving motor on the electric bicycle needs to be assembled with a hub, the process is complex, the installation cost is high, materials are wasted, the assembly time is long, batch production is not easy to achieve, and the production cost is relatively high.

Therefore, the technical personnel in the field need to solve the problem of how to provide an integrated electric vehicle driving wheel hub which reduces the production cost and is convenient for mass production.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides an integrated electric vehicle drive wheel hub, which is convenient to assemble, saves working procedures, reduces installation and use costs, and can be produced and used in large batch.

In order to achieve the purpose, the utility model adopts the following technical scheme: an integrated electric vehicle driving wheel hub comprises a wheel rim and a wheel hub motor, wherein the wheel hub motor comprises a first protective shell, a second protective shell, a motor shaft, a stator assembly and a permanent magnet, the middle part of the motor shaft is fixedly connected with the stator assembly, the first protective shell and the second protective shell are both disc-shaped and are oppositely arranged, the periphery of one side, close to the second protective shell, of the first protective shell is integrally provided with a magnetic conduction ring in an annular mode, the middle parts of the first protective shell and the second protective shell are both provided with mounting holes, the stator assembly is positioned between the first protective shell and the second protective shell, and the motor shaft is in adaptive connection with the mounting holes through bearings; the permanent magnet is fixedly connected to the inner peripheral side of the magnetic conduction ring and correspondingly positioned on the outer periphery of the stator assembly, and the inner ring periphery of the rim is tightly attached to the outer ring periphery of the magnetic conduction ring and is welded and fixed; the peripheral edge of the second protective shell is fixedly connected with the wheel rim.

The utility model has the beneficial effects that: according to the utility model, the rim is directly welded and fixed with the magnetic conduction ring, and the magnetic conduction ring is of a structure integrally formed with the first protective shell, so that the traditional connecting process of transition between the rim and the permanent magnet through an iron sheet is saved, the rim is directly welded and fixed through the magnetic conduction ring, the assembly efficiency is improved, and the cost is saved.

Preferably, the central axis of the magnetic conductive ring is collinear with the central axis of the mounting hole.

Preferably, the two side sections of the rim, which are close to the bottom, are formed by compression molding, are perpendicular to the bottom, and the side sections of the rim, which are close to the magnetic conductive rings, are perpendicular to the magnetic conductive rings.

Preferably, the rim is provided with a threaded column around the side edge close to the second protective shell, a threaded blind hole is formed in one end of the threaded column, and the second protective shell is fixedly connected with the threaded column through a bolt.

Preferably, one side of the inner circumference of the rim and one end of the magnetic conduction ring are fixed through laser welding to form a welding spot.

Drawings

FIG. 1 is a cross-sectional view of an integrated electric vehicle drive wheel hub of the present invention;

fig. 2 is a sectional view of a conventional hub motor and rim.

The wheel hub motor comprises a rim 1, a wheel hub motor 2, a first protective shell 21, a second protective shell 22, a motor shaft 23, a stator assembly 24, a permanent magnet 25, a magnetic conduction ring 3, a bearing 4, a welding point 5 and a threaded column 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 2 of the present disclosure, an integrated electric vehicle driving wheel hub according to an embodiment of the present disclosure includes a wheel rim 1 and a wheel hub motor 2, where the wheel hub motor 2 includes a first protective shell 21, a second protective shell 22, a motor shaft 23, a stator assembly 24, and a permanent magnet 25, the middle of the motor shaft 23 is fixedly connected to the stator assembly 24, the first protective shell 21 and the second protective shell 22 are both disc-shaped and are arranged oppositely, a magnetic conductive ring 3 is annularly formed on the periphery of one side of the first protective shell 21 close to the second protective shell 22, the first protective shell and the magnetic conductive ring are designed to be integrally formed, and are convenient to produce, mounting holes are formed in the middle of the first protective shell 21 and the second protective shell 22, and the stator assembly 24 is located between the first protective shell 21 and the second protective shell 22. The motor shaft is connected with the mounting hole in an adaptive manner through a bearing 4; the permanent magnet 25 is fixedly connected to the inner peripheral side of the magnetic conductive ring 3 and correspondingly positioned on the outer periphery of the stator assembly 24, and the inner ring periphery of the rim 1 is tightly attached to the outer ring periphery of the magnetic conductive ring 3 and is welded and fixed; the outer peripheral edge of the second protective shell 22 is fixedly connected to the rim 1.

In other embodiments, the central axis of the flux ring 3 is collinear with the central axis of the mounting hole.

Specifically, the side sections of the two sides of the rim 1, which are close to the magnetic conductive rings 3, are perpendicular to the magnetic conductive rings 3, and the angle a is 90 °. The two side sections of the rim 1, which are close to the bottom, are molded and formed to be perpendicular to the bottom, so that the magnetic flux area of the permanent magnet is increased as much as possible, the magnetic flux is increased, and the rotating speed of the rotor and the output power of the hub motor are improved.

More specifically, the first backplate passes through with the circular arc of magnetic ring junction department.

In other embodiments, a threaded column 6 is annularly arranged on the side edge of the rim 1 close to the second protective shell 22, a threaded blind hole is formed at one end of the threaded column 6, and the second protective shell 22 is fixedly connected with the threaded column 6 through a bolt.

In other embodiments, one side of the inner circumference of the rim 1 and one end of the magnetic conductive ring 3 are fixed by laser welding and are formed with a welding point 5.

Specifically, the stator assembly comprises a stator core, a stator winding and a core support plate, a hollow cavity is formed in the stator core, the core support plate is located in the hollow cavity and fixed to the inner wall of the stator core, a through hole is formed in the middle of the core support plate, and the motor shaft penetrates through the through hole and is welded with the core support plate;

the stator winding is wound on the stator core, the first protective shell and the second protective shell extend out of two ends of the motor shaft, blind holes are formed in the two ends of the motor shaft along the axial direction of the motor shaft, and internal threads are formed in the blind holes; bolt threaded connection is in the blind hole, and the installation bearing passes through bearing cooperation and first protective housing and the installation of second protective housing on the motor shaft.

The stator assembly is connected with an external power supply to generate a magnetic field, and the permanent magnet and the magnetic conduction ring are driven to rotate through energy conversion, so that the rotation of the hub is realized.

The wheel rim is simple in structure, the traditional procedure of transition connection between the wheel rim and the permanent magnet through an iron sheet is omitted, the wheel rim is conveniently connected with the magnetic conduction ring while the installation efficiency is improved, the use cost is reduced, the wheel rim and the magnetic conduction ring are welded by adopting a laser cold welding machine, the deformation is small, the cost is low, and the wheel rim is suitable for mass production and use.

For the device and the using method disclosed by the embodiment, the description is simple because the device and the using method correspond to the method disclosed by the embodiment, and the relevant points can be referred to the description of the method part.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The integrated electric vehicle driving wheel hub is characterized by comprising a wheel rim (1) and an in-wheel motor (2), wherein the in-wheel motor (2) comprises a first protective shell (21), a second protective shell (22), a motor shaft (23), a stator assembly (24) and a permanent magnet (25), the middle part of the motor shaft (23) is fixedly connected with the stator assembly (24), the first protective shell (21) and the second protective shell (22) are disc-shaped and are oppositely arranged, the periphery of one side, close to the second protective shell (22), of the first protective shell (21) is integrally provided with a magnetic conduction ring (3), mounting holes are formed in the middle parts of the first protective shell (21) and the second protective shell (22), and the stator assembly (24) is located between the first protective shell (21) and the second protective shell (22); the motor shaft is in adaptive connection with the mounting hole through a bearing (4); the permanent magnet (25) is fixedly paved on the inner peripheral side of the magnetic conduction ring (3) and correspondingly positioned on the outer periphery of the stator assembly (24), and the inner ring periphery of the rim (1) is tightly attached to the outer ring periphery of the magnetic conduction ring (3) and is welded and fixed; the peripheral edge of the second protective shell (22) is fixedly connected with the wheel rim (1).

2. The integrated electric vehicle drive wheel hub according to claim 1, characterized in that the central axis of the magnetic conductive ring (3) is collinear with the central axis of the mounting hole.

3. The integrated electric vehicle driving wheel hub according to claim 1, wherein two side sections of the rim (1) which are molded close to the bottom are perpendicular to the bottom, and the side sections of the rim (1) which are close to the magnetic conductive rings (3) are perpendicular to the magnetic conductive rings (3).

4. The integrated electric vehicle drive wheel hub according to claim 1, characterized in that a threaded column (6) is annularly arranged on the side edge of the wheel rim (1) close to the second protective shell (22), a threaded blind hole is formed in one end of the threaded column (6), and the second protective shell (22) is fixedly connected with the threaded column (6) through a bolt.

5. The integrated electric vehicle driving wheel hub according to claim 1, characterized in that one side of the inner circumference of the wheel rim (1) and one end of the magnetic conductive ring (3) are fixed by laser welding and are formed with a welding point (5).