CN110556996A

CN110556996A - Axial motor

Info

Publication number: CN110556996A
Application number: CN201910978643.6A
Authority: CN
Inventors: 白宝彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2019-12-10

Abstract

The application discloses axial motor, including shell, stator and the rotor that has the rotation axis, the rotor includes: the rotor positioning disc is fixedly connected with the rotating shaft, and the electromagnets are arranged on the rotor positioning disc at equal angles and equal intervals; the stator includes: the first permanent magnetism end and the second permanent magnetism end that the symmetry set up, first permanent magnetism end and second permanent magnetism end on be provided with two at least the same permanent magnets respectively, and the magnetic pole of adjacent permanent magnet is opposite, first permanent magnetism end and second permanent magnetism end on the magnetic pole of relative permanent magnet opposite. The technical scheme of this application make full use of the magnetic field at electro-magnet both ends, improved the conversion rate and the utilization ratio of electric energy, overcome traditional radial motor and can produce the shortcoming that axial force increases bearing load at the during operation, prolong the life of motor bearing by a wide margin.

Description

Axial motor

Technical Field

The application relates to the field of motors, in particular to an axial motor.

Background

Rotary-type motors are well known and have been widely used for many years to convert electrical energy into mechanical energy. A typical motor is radial and includes a rotor and a stator.

The rotor is the operative component of the motor and includes a rotating shaft that transmits torque to a load. The rotor typically includes conductors that conduct electrical current, which in turn generates an electromagnetic field that interacts with the magnetic field of the stator to generate a force that causes the shaft to rotate.

In another alternative, the rotor comprises permanent magnets and the stator comprises conductors.

The stator is a stationary part of the electromagnetic circuit of the motor and, as stated, comprises windings or permanent magnets. The stator core is typically constructed from a number of thin metal sheets known as laminations. The laminations serve to reduce the energy loss that would result from the use of a solid core.

The motor of the proposal can generate an interactive magnetic field in a working state, but the rotor and the stator can only form a circumferential air gap and do work, the electromagnetic field at one side close to the rotating shaft can not do work because the air gap can not be formed, and the electric energy can not be fully utilized; meanwhile, the rotor can generate axial force when rotating and impact the bearing, and the service life of the motor bearing is reduced.

Therefore, how to provide a motor that can fully utilize the magnetic field energy generated in the axial direction and improve the conversion rate and utilization rate of electric energy is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide an axial motor, which is axially designed to form two planar air gaps between a stator and a rotor of the motor, wherein the air gap magnetic field is distributed along the axial direction. The axial motor overcomes the defect that the stator and the rotor of the traditional radial motor can only form a circumferential air gap so that electromagnetic energy cannot be fully utilized, improves the conversion rate and the utilization rate of electric energy, and greatly prolongs the service life of a motor bearing.

In order to solve the technical problems, the invention provides the following technical scheme:

An axial motor comprising a housing, a stator and a rotor having a rotation axis, characterized in that: the rotor includes: the rotor positioning disc is fixedly connected with the rotating shaft, and the electromagnets are arranged on the rotor positioning disc at equal angles and equal intervals;

the stator includes: the first permanent magnetism end and the second permanent magnetism end that the symmetry set up, first permanent magnetism end and second permanent magnetism end on be provided with two at least the same permanent magnets respectively, and the magnetic pole of adjacent permanent magnet is opposite, first permanent magnetism end and second permanent magnetism end on the magnetic pole of relative permanent magnet opposite.

Preferably, the number of the electromagnets and the permanent magnets is 6.

Preferably, the rotor positioning disc is provided with an electromagnet positioning hole for installing and fixing the electromagnet.

Preferably, the first permanent magnet end and the second permanent magnet end of the stator are provided with permanent magnet positioning holes for installing and fixing the permanent magnets.

Preferably, the rotating shaft is further connected with a brush, a commutator and a control circuit.

Preferably, the electromagnet is powered using direct current.

Preferably, the electromagnet is powered using alternating current.

Preferably, the N pole and the S pole of the adjacent permanent magnets are arranged at intervals in pairs.

Preferably, the motor includes a plurality of the above-described structures.

The technical scheme is as follows: the rotor rotates under stress by utilizing the characteristics of like poles repelling each other and opposite poles attracting each other, and simultaneously, both ends of the electromagnet of the rotor can form action with the permanent magnet, so that magnetic fields generated at both ends of the electromagnet are fully utilized, and the utilization rate and the conversion rate of electric energy can be obviously improved. Simultaneously, current radial motor during operation can produce an axial impact force, can increase the load of bearing undoubtedly, and among the axial motor technical scheme of this application, because both ends receive the permanent magnet attraction or repel simultaneously about the rotor, so the axial atress is balanced, therefore bearing work burden is light, can prolong the life of bearing effectively for prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of an axial motor according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an electromagnet according to an embodiment of the present invention;

FIG. 3 is a schematic view of a permanent magnet arrangement according to an embodiment of the present invention;

FIG. 4 is a schematic view of a rotor positioning plate according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a permanent magnet arrangement according to an embodiment of the present invention;

FIG. 6 is a schematic view of an axial motor structure according to an embodiment of the present invention

detailed description of the preferred embodiments

The core of the invention is to provide an axial motor, which overcomes the magnetic energy loss of the radial motor in the axial direction in the prior art, improves the utilization rate and the conversion rate of electric energy, and can prolong the service life of a motor bearing.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. The invention is therefore not limited to the specific implementations disclosed below.

embodiments of the present invention will be described in detail below with reference to fig. 1 to 6.

In the figure: the rotor positioning disc comprises a rotating shaft 1, a rotor positioning disc 2, an electromagnet 3, a first permanent magnet end 4, a second permanent magnet end 5, an electromagnet positioning hole 6, a rotating shaft positioning hole 7, a permanent magnet 8, a stator fixing hole 9, a shell 10, a protective cover 11, a stator fixing bolt 12 and an electric brush 13.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an axial motor according to an embodiment of the present invention.

The motor in the present embodiment includes a stator and a rotor having a rotating shaft 1, the rotor including: the rotor positioning disc 2 is fixedly connected with the rotating shaft 1, and the electromagnets 3 are at least two same and are arranged on the rotor positioning disc 2 at equal angles and equal intervals; the stator includes: first permanent magnetism end 4 and the second permanent magnetism end 5 that the symmetry set up, first permanent magnetism end 4 and second permanent magnetism end 5 on be provided with two at least the same permanent magnets respectively, and the magnetic pole of adjacent permanent magnet is opposite, first permanent magnetism end and second permanent magnetism end on the magnetic pole of relative permanent magnet opposite.

In the above embodiments, the axial direction of the electromagnet is the same as the axial direction of the rotating shaft, and both magnetic energy generated by the electromagnet at both ends (poles) thereof can generate kinetic energy by interacting with the permanent magnets disposed at both ends of the electromagnet.

The principle of the existing radial motor is that an electrified coil is subjected to ampere force in a magnetic field to generate rotation so as to generate kinetic energy, but only one adjacent side of a stator and a rotor can form a circumferential air gap, so that only one side can do work, the two ends of the coil can generate magnetic fields in the middle period of the working process, and the magnetic field energy is not utilized in the prior art, so that the energy waste and the low conversion rate of electric energy are caused.

In the embodiment of the technical scheme, the characteristics of like poles repelling each other and opposite poles attracting each other are utilized, so that the rotor is stressed to rotate, and meanwhile, air gaps can be formed between the two ends of the electromagnet of the rotor and the permanent magnet to do work, so that electric energy is fully utilized. Compared with the prior art, the technical scheme of the application has the advantages of improving the utilization rate and the conversion rate of electric energy; simultaneously, current radial motor during operation can produce an axial impact force, can increase the load of bearing undoubtedly, and among the axial motor technical scheme of this application, because both ends receive the permanent magnet attraction or repel simultaneously about the rotor, so the axial atress is balanced, therefore bearing work burden is light, can prolong the life of bearing effectively for prior art.

referring to fig. 2 to 4, in another embodiment of the present disclosure, the number of the electromagnets and the permanent magnets is 6; wherein 6 is an electromagnet positioning hole, and 7 is a rotating shaft positioning hole.

In another embodiment of the technical scheme of the application, 6 identical electromagnets are arranged on the rotor positioning disc at equal angular intervals.

In another embodiment of the technical scheme of the application, an electromagnet positioning hole for installing and fixing the electromagnet is arranged on the rotor positioning disc.

in another embodiment of the technical scheme of the application, permanent magnet positioning holes for installing and fixing the permanent magnets are formed in the first permanent magnet end and the second permanent magnet end of the stator.

The permanent magnets in the above scheme are not limited to specific number, size, shape and position, and the size, number, shape and position of the electromagnets and the permanent magnets should be determined according to practical application to achieve optimal and satisfactory power output, and the permanent magnet positioning holes correspond to the permanent magnets.

In another embodiment of the technical scheme of the application, the rotating shaft is also connected with a brush and a control circuit.

In the present embodiment, brushes, a commutator, and a control circuit, which may be a circuit that controls conditions of voltage, current, and the like, are provided on the rotating shaft so as to accomplish a predetermined output.

In another embodiment of the present solution, the electromagnet is powered using direct current.

In another embodiment of the present disclosure, the electromagnet is powered using alternating current.

In this embodiment, the power supply scheme used by the motor is not limited, and ac or dc power may be selected according to actual conditions.

Referring to fig. 5, in another embodiment of the present disclosure, N poles and S poles of adjacent permanent magnets are arranged at intervals in pairs

In the above embodiment, the first permanent magnet end and the second permanent magnet end are respectively provided with at least two groups (4) of permanent magnets with different magnetic poles, and the N poles and the S poles of the adjacent permanent magnets are arranged at intervals in pairs. Compared with the traditional arrangement mode of permanent magnets with one N pole and one S-level interval, the arrangement mode can improve the work doing range of the rotor and reduce the mutual offset loss of the permanent magnet magnetic field during work doing.

In another embodiment of the present disclosure, the motor includes a plurality of the above-described structures.

In this embodiment, a plurality of the above-mentioned motor structures can be added to be connected in series according to actual requirements.

to sum up, the technical scheme of the application is as follows: the rotor rotates under stress by utilizing the characteristics of like poles repelling each other and opposite poles attracting each other, and two planar air gaps are formed between two ends of the electromagnet on the rotor and the permanent magnets fixed on the front end cover and the rear end cover of the motor, so that magnetic fields generated at two ends of the electromagnet are fully utilized, and the utilization rate and the conversion rate of electric energy can be obviously improved. In the whole system, two planar air gaps are generated by the electromagnets except for the core of the scheme, so that the working capacity is obviously improved, and compared with the traditional arrangement mode that N poles and S poles of the stator permanent magnets are arranged at intervals in pairs, the arrangement mode improves the working range of the rotor and reduces the mutual offset loss of the permanent magnet magnetic fields during working. And because the left end and the right end of the motor rotor are attracted or repelled by the permanent magnets at the same time, the axial stress is balanced, and no axial impact force is generated, so that the bearing has light working load, and the service life of the motor bearing can be effectively prolonged compared with the prior art.

This application adopts the modularized design, and no abnormal shape component easily processes, assembles. In addition, motors including the rotor and stator arrangements of the present application are intended to fall within the scope of the present application.

Compared with the prior art, the technical scheme of the application can improve the utilization rate and the conversion rate of electric energy, save the operation cost, have a very positive effect on energy conservation and emission reduction, and bring remarkable economic and social benefits.

Claims

1. An axial motor comprising a housing, a stator and a rotor having a rotation axis, characterized in that:

The rotor includes: the rotor positioning disc is fixedly connected with the rotating shaft, and the rotor positioning disc and the at least two same electromagnets are fixedly connected with the rotating shaft. The electromagnets are arranged on the rotor positioning disc at equal angles and equal intervals;

2. The axial motor of claim 1, wherein the number of electromagnets and permanent magnets is 6.

3. The axial motor of claim 1, wherein the rotor positioning disk is provided with an electromagnet positioning hole for mounting and fixing the electromagnet.

4. The axial motor of claim 1, wherein the first permanent magnet end and the second permanent magnet end of the stator are provided with permanent magnet positioning holes for mounting and fixing the permanent magnets.

5. An axial motor as claimed in claim 1, wherein brushes, a commutator and a control circuit are further connected to the rotating shaft.

6. the axial motor of claim 1, wherein said electromagnet is powered using direct current.

7. An axial motor according to claim 1, wherein the electromagnet is powered using alternating current.

8. The axial motor of claim 1, wherein adjacent permanent magnets have N and S poles arranged adjacent to each other with a spacing therebetween.

9. An axial motor according to any one of claims 1-8, characterised in that the motor comprises a plurality of such structures.