CN214479911U

CN214479911U - Two permanent magnet structures of wheel hub motor assembly

Info

Publication number: CN214479911U
Application number: CN202120131779.6U
Authority: CN
Inventors: 杜万利; 方传利
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-10-22
Anticipated expiration: 2031-01-19

Abstract

A double-group permanent magnet structure for assembling a hub motor is characterized in that a rotor motor shell is connected with two side end covers through screws, motor bearings are embedded in the two side end covers, inner sides of the two side end covers of the rotor motor are fixed with circular iron plates through screws, permanent magnets are fixedly adhered to the inner circular iron plates, a coil is connected with a stator through embedding adhesive, the stator is welded on a motor shaft, and the motor shaft is installed on the motor bearings. The hub motor has the advantages that the structure is improved on the basis of the original hub motor, the functional density is increased, the torque is larger, the manufacturing cost is low, the manufacturing is simple, and the motor power is improved by more than 30%.

Description

Two permanent magnet structures of wheel hub motor assembly

Technical Field

The utility model relates to a two permanent magnet structures of wheel hub motor assembly.

Background

The wheel hub motor is also called as a wheel built-in motor, and has the biggest characteristic that a power transmission and braking device is integrated into a wheel hub, so that the mechanical part of an electric vehicle is greatly simplified, and the wheel hub motor has the characteristic of independent driving of a single wheel, so that the wheel hub motor can be easily realized no matter in front driving and rear driving, and the vehicle structure is simpler.

Two-wheel electric vehicles sold in the market are mainly hub motors, namely outer rotor motors (rotors rotate along with motor shells) and motor shell rotors are fixed on wheel rims or integrated together, and the motor rotors and the outer shells rotate together to enable wheels to rotate.

The existing structure of external rotor hub motor, its coil group is fixed on stator, the magnetic pole direction of the coil is correspondent to the permanent magnet on the inner wall of the rotor motor shell, the stator is perpendicular to axial direction and connected with shaft, its permanent magnet is fixed on the inner wall of the rotor motor shell, the magnetic pole direction of the rotor is correspondent to the coil on the stator and perpendicular to axial direction, the rotor motor shell is connected with the end covers of two side motors by screw, the end covers of the motors are equipped with bearings, the motor shaft is connected with the bearings on the end covers of two side motors in parallel, its disadvantage is that the diameter of the hub is increased when the power is increased because the stator coil and the permanent magnet of the rotor are limited by the space in the hub, the diameter of the tyre is also increased, so the manufacturing cost is high.

Disclosure of Invention

An object of the utility model is to solve the above-mentioned current problem that exists, provide an optimize motor structure, improved the two permanent magnet structures of in-wheel motor assembly of motor power.

The utility model discloses a realize like this: the improved structure of the hub motor is based on the original hub motor, and two groups of permanent magnet and ferromagnetic poles are corresponding to the magnetic pole direction of the coil and are parallel to the axial direction. The inner sides of the two side end covers are correspondingly provided with round iron plates with the same outer diameter as the stator, and the round iron plates are fixed on the end covers by screws, and the round iron plates are mainly adhered to the round iron plates according to the original sequence of the magnets for better mounting the permanent magnets and magnetic conduction, so that the magnetic pole directions of the two groups of permanent magnets correspond to the magnetic pole of the coil and are parallel to the axial direction.

The utility model has the advantages that, improved structure on original in-wheel motor basis, increased functional density, make the moment of torsion bigger, the cost is low, simple manufacture has improved more than 30% of motor power.

Drawings

FIG. 1 is a schematic diagram of a conventional structure;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view showing the sequence of permanent magnets on a circular iron plate.

Detailed Description

The following detailed description is made with reference to the accompanying drawings: as shown in the figure, a rotor motor shell 1 is connected with two side end covers 2 through screws 4, motor bearings 3 are embedded on the two side end covers 2, inner sides of the two side end covers 2 of the rotor motor are fixed with round iron plates 10 through screws 9, permanent magnets 5 are fixedly adhered on the round iron plates 10, coils 6 are adhered to stators 7 through embedding glue, the stators 7 are welded on a motor shaft 8, and the motor shaft 8 is installed on the motor bearings 3.

Claims

1. A two-group permanent magnet structure assembled on a hub motor is characterized in that a rotor motor shell is connected with two side end covers through screws, motor bearings are embedded on the two side end covers, a stator is welded on a motor shaft, the motor shaft is installed on the motor bearings, the inner sides of the two side end covers of the rotor motor are fixed with round iron plates through screws, permanent magnets are adhered and fixed on the round iron plates on the inner sides, a coil is connected with the stator through embedding and gluing, and the magnetic pole directions of the two groups of permanent magnets correspond to the magnetic pole of the coil and are parallel to the axial direction.