CN112436635A - Inner rotor monopole motor and motor equipment - Google Patents

Inner rotor monopole motor and motor equipment Download PDF

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Publication number
CN112436635A
CN112436635A CN202011279583.8A CN202011279583A CN112436635A CN 112436635 A CN112436635 A CN 112436635A CN 202011279583 A CN202011279583 A CN 202011279583A CN 112436635 A CN112436635 A CN 112436635A
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China
Prior art keywords
inner rotor
motor
magnetic
unipolar
magnetic monopole
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CN202011279583.8A
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CN112436635B (en
Inventor
王秀和
刘峰
李娴
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Shandong University
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Shandong University
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733—Annular magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/04—Machines with one rotor and two stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator

Abstract

The invention belongs to the field of permanent magnet motors, and provides an inner rotor monopole motor and motor equipment. Wherein, an inner rotor unipolar motor includes inner rotor and stator, be provided with magnetism unipolar structure on the inner rotor, be provided with armature winding in the stator, the direction of current flow corresponds the setting with the direction of magnetizing of magnetism unipolar structure in the armature winding, because this novel unipolar motor special rotor structure and magnetic pole mounted position for coil limit on the armature winding that is close to and keeps away from the rotor side receives syntropy electromagnetic force effect, with improvement motor torque density. The problems of small torque, low efficiency and the like caused by ineffective windings of the traditional single-pole motor are effectively solved, the power torque density and the efficiency of the motor are greatly improved, and the method has important significance for the development of the single-pole motor.

Description

Inner rotor monopole motor and motor equipment
Technical Field
The invention belongs to the field of permanent magnet motors, and particularly relates to an inner rotor monopole motor and motor equipment.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
After faraday reveals the electromagnetic induction phenomenon, the unipolar motor gradually starts a development process for hundreds of years, and after the sixties of the last century, due to the rapid development of superconducting materials and technologies, the application and development of the unipolar motor also make some progress, which is particularly reflected in the development of using the superconducting materials to make an excitation winding and a current collection mode, but has not made a substantial breakthrough all the time, and the application is limited to some special occasions. Moreover, the superconducting materials are expensive and require relatively harsh working environment, which greatly increases the cost of the superconducting single-pole motor and further limits the development and application thereof. The traditional single-pole motor, no matter used as a motor or a generator, needs or generates larger current which can reach hundreds of amperes, thousands of amperes or even thousands of amperes, so that a series of problems which cannot be ignored, such as large loss, low efficiency, serious temperature rise problem and the like are brought, and the application of the single-pole motor is limited. In addition, the traditional single-pole motor has an invalid winding edge in structural arrangement, so that the effective torque of the motor is partially offset, the armature winding cannot be fully utilized to realize effective superposition of the torque, and the electromagnetic torque is extremely poor in performance.
Although researchers have improved the conventional monopole motors, the inventor has found that the rotors of these motors are implemented by using the conventional cylindrical rotor, which still fails to effectively solve the structural defects of the conventional monopole motors, and the problem of the ineffective coil side still remains.
Disclosure of Invention
In order to solve at least one technical problem in the background art, the invention provides an inner rotor unipolar motor and a motor device, which can fully utilize an armature winding, greatly improve the efficiency, power and torque density of the motor, have excellent electromagnetic performance, and can stably and reliably operate.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an inner rotor unipolar motor, which comprises an inner rotor and a stator, wherein a magnetic unipolar structure body is arranged on the inner rotor, an armature winding is arranged in the stator, and the current flow direction in the armature winding is arranged corresponding to the magnetizing direction of the magnetic unipolar structure body, so that the coil sides of the armature winding close to and far from the rotor side are subjected to the action of the same-direction electromagnetic force, and the torque density of the motor is improved.
In one embodiment, the magnetic monopole structure is an annular magnetic monopole.
Wherein, the annular magnetic single pole is a magnetic pole with the same magnetic pole attribute (N pole or S pole) in the circumferential direction.
In one embodiment, the outer diameter of the middle section of the inner rotor is different from the outer diameter of the two side sections of the inner rotor.
The scheme has the advantages that the axial or radial combined configuration of the magnetic poles can be realized, so that the magnetic field close to and in principle on the side coil edge of the rotating shaft is changed, the full utilization of the armature winding is realized, and the electromagnetic performances such as the torque density of the motor are improved.
In one embodiment, the magnetic monopole structure is disposed on the inner rotor in an axial direction or a radial direction.
As an embodiment, the magnetic monopole structure body is arranged along the axial direction of the inner rotor and is magnetized along the radial direction of the inner rotor; and the magnetic monopole structure body is arranged along the radial direction of the inner rotor and is magnetized along the axial direction of the inner rotor.
In one embodiment, the shaft middle section of the inner rotor is integrated with the shaft both side sections of the inner rotor.
The technical scheme has the advantages that the mechanical strength requirement of the motor can be met, and the safety problem caused by unbalanced stress of the rotor section or falling of the magnetic pole in the high-speed operation process of the motor is avoided.
In one embodiment, a magnetic monopole structure protection sleeve is further arranged outside the magnetic monopole structure.
As an implementation mode, a rotating shaft is installed in the inner rotor, the rotating shaft is rotatably connected with a left end cover and a right end cover, and the left end cover and the right end cover are fixedly connected or integrally arranged through a machine shell.
In one embodiment, the housing is a non-magnetically permeable housing.
In one embodiment, the stator is fixedly connected to or integrated with the housing.
A second aspect of the invention provides an electric machine apparatus comprising an inner rotor unipolar motor as described above.
All the technical schemes of the invention can realize the requirements of different power occasions by the series and parallel connection of the stator winding outlet terminals.
In the present invention, the "winding current flow direction is set in correspondence to the magnetization direction of the magnetic monopole structure" means that the coil sides of the inner rotor magnetic monopole structure in the directions close to and away from the rotating shaft are subjected to the same-direction electromagnetic force by setting a combination of different polarities.
In the present invention, necessary components, units, systems, etc. should be provided where necessary according to the well-known technique in the field of permanent magnet motors.
The invention has the beneficial effects that:
the inner rotor of the invention is provided with a magnetic monopole structure body, the stator is internally provided with an armature winding, and the current flow direction in the armature winding is arranged corresponding to the magnetizing direction of the magnetic monopole structure body, so that the coil edges on the armature winding close to and far away from the rotor side are acted by the same-direction electromagnetic force, thereby improving the torque density of the motor; when the motor is in operation, stator core is in steady magnetic field, the magnetic pole on the rotor produces the electromagnetic action to the winding, because this novel special rotor structure of inner rotor monopole motor and novel magnetism monopole structure body mounted position, make the magnetic field direction that the coil side that is close to and keeps away from the rotor in every stator core is the same, and then receive the electromagnetic force effect of direction unanimity, realize the stack of effort, effectively solve the electromagnetic force that traditional monopole motor invalid winding brought and cut down, the torque is little, high loss, the serious scheduling problem of heat dissipation problem, especially make invalid winding obtain make full use of, the motor efficiency has been improved greatly, power and torque density, the electromagnetism is excellent, and can the reliable and stable operation, have important practical value to the further development of monopole motor.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic structural view of an inner rotor monopole motor according to a first embodiment of the invention;
fig. 2 is a schematic structural view of an inner rotor monopole motor according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an inner rotor monopole motor according to a third embodiment of the invention;
fig. 4 is a schematic structural view of an inner rotor monopole motor according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural view of an inner rotor monopole motor according to a fifth embodiment of the invention;
fig. 6 is a schematic structural view of an inner rotor monopole motor according to a sixth embodiment of the invention;
in the figure: 11-a housing; 12-a rotating shaft; 13-a bearing; 14-left end cap; 15-right end cap; 16-a magnetism isolating ring; 21-magnetic monopole structure a; 22-magnetic monopole structure B; 23-magnetic monopole structure C; 24-magnetic monopole structure D; 25-magnetic monopole structure E; 26-magnetic monopole structure F; 27-magnetic monopole structure G; 28-magnetic monopole structure H; 31-a stator; 32-an inner rotor; 33-winding.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
< inner rotor single-pole Motor >
Example one
Referring to fig. 1, the inner rotor monopole motor of this embodiment includes a magnetic monopole structure a21, a magnetic monopole structure B22, a magnetic monopole structure C23, and a magnetic monopole structure D24, where the magnetic monopole structure a21, the magnetic monopole structure B22, the magnetic monopole structure C23, and the magnetic monopole structure D24 are disposed on an inner rotor 32, a rotating shaft 12 is installed in the inner rotor 32, the rotating shaft 12 is rotatably connected with a left end cover 14 and a right end cover 15, the left end cover 14 and the right end cover 15 are fixedly connected or integrally disposed through a casing 11, a stator 31 corresponding to the inner rotor 32 is installed in the casing 11, an air gap is disposed between the stator 31 and the inner rotor 32, and an armature winding 33 is disposed in the stator 31.
Wherein the housing 11 is a non-magnetic conductive body.
Here, it is understood that the left end cap 14 and the right end cap 15 are provided as a magnetic conductive structure or a non-magnetic conductive structure.
In this embodiment, the outer diameter of the middle section of the shaft of the inner rotor 32 is larger than the outer diameters of the sections on both sides of the shaft, the magnetic monopole structure a21 and the magnetic monopole structure D24 are respectively disposed on the sides of the two sections on both sides of the shaft of the inner rotor 32 near the air gap in the axial direction, and the magnetic monopole structure B22 and the magnetic monopole structure C23 are respectively disposed on the sides of the middle section of the shaft of the inner rotor 32 near the armature winding 33 in the radial direction.
The magnetic monopole structure a21 and the magnetic monopole structure D24 are magnetized in the radial direction and in the opposite direction, the magnetic monopole structure B22 and the magnetic monopole structure C23 are magnetized in the same direction and in the axial direction, the magnetic monopole structure a and the magnetic monopole structure B are arranged to face each other in polarity, and the magnetic monopole structure C and the magnetic monopole structure D are arranged to face each other in polarity.
In this embodiment, assuming that the magnetization direction of the magnetic monopole structure a is from bottom to top and the magnetization direction of the magnetic monopole structure B is from left to right, the coil side close to the rotating shaft is subjected to an upward magnetic field, and the presence of the magnetic monopole structure B causes the magnetic field from the magnetic monopole structure a to move toward the magnetic monopole structure B instead of moving upward, so that the magnetic field from the coil side far from the rotating shaft moves downward first and then moves toward the magnetic monopole structure B, and the directions of the currents on the two coil sides are opposite and the directions of the magnetic fields are opposite, so that the directions of the applied forces are the same, and the reduction of the moment does not occur.
Example two
Referring to fig. 2, the inner rotor monopole motor of the present embodiment includes a magnetic monopole structure a21, a magnetic monopole structure B22, a magnetic monopole structure C23, and a magnetic monopole structure D24, where the magnetic monopole structure a21, the magnetic monopole structure B22, the magnetic monopole structure C23, and the magnetic monopole structure D24 are disposed on an inner rotor 32, a rotating shaft 12 is mounted in the inner rotor 32, the rotating shaft 12 is rotatably connected to a left end cap 14 and a right end cap 15, the left end cap 14 and the right end cap 15 are fixedly connected or integrally disposed through a casing 11, stators 31 corresponding to the inner rotor 32 are mounted at two ends of the casing 11, an air gap is disposed between the stators 31 and the inner rotor 32, and an armature winding 33 is disposed in the stators 31.
Wherein the housing 11 is a non-magnetic conductive body.
Here, it is understood that the left end cap 14 and the right end cap 15 are provided as a magnetic conductive structure or a non-magnetic conductive structure.
In a specific implementation, the stator 31 is provided with two stator cores respectively mounted at two ends of the casing 11, and each stator core is provided with an armature winding 33 therein.
Wherein, the outer diameter of the middle section of the inner rotor 32 shaft is larger than the outer diameters of the sections at both sides of the shaft, the magnetic monopole structure A21 and the magnetic monopole structure D24 are respectively arranged at the near air gap side of the sections at both sides of the inner rotor 32 shaft along the axial direction, and the magnetic monopole structure B22 and the magnetic monopole structure C23 are respectively arranged at the near armature winding 33 side of the middle section of the inner rotor 32 shaft along the radial direction.
In a specific embodiment, the magnetic monopole structure a21 and the magnetic monopole structure D24 are magnetized in a radial direction and in a direction opposite to each other, the magnetic monopole structure B22 and the magnetic monopole structure C23 are magnetized in an axial direction and in the same direction, the magnetic monopole structure a and the magnetic monopole structure B are disposed to have polarities opposite to each other, and the magnetic monopole structure C and the magnetic monopole structure D are disposed to have polarities opposite to each other.
EXAMPLE III
Referring to fig. 3, the inner rotor monopole motor of this embodiment includes a magnetic monopole structure a21, a magnetic monopole structure B22, and a magnetic monopole structure E25, where the magnetic monopole structure a21, the magnetic monopole structure B22, and the magnetic monopole structure E25 are disposed on an inner rotor 32, a rotating shaft 12 is installed in the inner rotor 32, the rotating shaft 12 is rotatably connected with a left end cover 14 and a right end cover 15, the left end cover 14 and the right end cover 15 are fixedly connected or integrally disposed through a casing 11, a stator 31 corresponding to the inner rotor 32 is installed in the casing 11, an air gap is provided between the stator 31 and the inner rotor 32, and an armature winding 33 is disposed in the stator 31.
Wherein the housing 11 is a non-magnetic conductive body.
Here, it is understood that the left end cap 14 and the right end cap 15 are provided as a magnetic conductive structure or a non-magnetic conductive structure.
In a specific implementation, the outer diameter of the middle shaft section of the inner rotor 32 is smaller than the outer diameters of the two shaft side sections of the inner rotor 32, the magnetic monopole structure a21 is axially arranged on the air gap side of the central shaft section of the inner rotor 32, and the magnetic monopole structure B22 and the magnetic monopole structure E25 are respectively radially arranged on the armature winding sides of the two shaft side sections of the inner rotor 32.
In a specific implementation, the magnetizing directions of the magnetic monopole structure B22 and the magnetic monopole structure E25 are axially opposite, and the polarities of the magnetic monopole structure A and the magnetic monopole structure B are opposite.
Example four
Referring to fig. 4, the inner rotor monopole motor of this embodiment includes a magnetic monopole structure a21, a magnetic monopole structure B22, and a magnetic monopole structure E25, where the magnetic monopole structure a21, the magnetic monopole structure B22, and the magnetic monopole structure E25 are disposed on the inner rotor 32, a rotating shaft 12 is installed in the inner rotor 32, the rotating shaft 12 is rotatably connected with a left end cover 14 and a right end cover 15, the left end cover 14 and the right end cover 15 are fixedly connected or integrally disposed through a casing 11, a stator 31 is installed in the casing 11, an air gap is disposed between the stator 31 and the inner rotor 32, and an armature winding 33 is disposed in the stator 31.
Wherein the housing 11 is a non-magnetic conductive body.
Here, it is understood that the left end cap 14 and the right end cap 15 are provided as a magnetic conductive structure or a non-magnetic conductive structure.
In a specific implementation, the stator 31 is installed in a cylindrical shape at the axial center of the housing 11.
In a specific implementation, the outer diameter of the middle shaft section of the inner rotor 32 is smaller than the outer diameters of the two shaft side sections of the inner rotor 32, the magnetic monopole structure a21 is axially arranged on the air gap side of the central shaft section of the inner rotor 32, and the magnetic monopole structure B22 and the magnetic monopole structure E25 are respectively radially arranged on the armature winding sides of the two shaft side sections of the inner rotor 32.
In a specific implementation, the magnetic monopole structure B22 and the magnetic monopole structure E25 are magnetized in opposite directions along the axial direction, and the magnetic monopole structure a21 and the magnetic monopole structure B22 are arranged in opposite polarities.
EXAMPLE five
Referring to fig. 5, the inner rotor monopole motor of this embodiment includes a magnetic monopole structure a21, a magnetic monopole structure F26, and a magnetic monopole structure G27, where the magnetic monopole structure a21, the magnetic monopole structure F26, and the magnetic monopole structure G27 are disposed on an inner rotor 32, a rotating shaft 12 is installed in the inner rotor 32, the rotating shaft 12 is rotatably connected with a left end cover 14 and a right end cover 15, the left end cover 14 and the right end cover 15 are fixedly connected or integrally disposed through a casing 11, a stator 31 corresponding to the inner rotor 32 is installed in the casing 11, an air gap is provided between the stator 31 and the inner rotor 32, and an armature winding 33 is disposed in the stator 31.
Wherein the housing 11 is a non-magnetic conductive body.
Here, it is understood that the left end cap 14 and the right end cap 15 are provided as a magnetic conductive structure or a non-magnetic conductive structure.
In a specific implementation, the outer diameter of the middle shaft section of the inner rotor 32 is smaller than the outer diameters of the two shaft sections of the inner rotor 32, the magnetic monopole structure a21 is axially arranged on the near air gap side of the central shaft section of the inner rotor 32, and the magnetic monopole structure F26 and the magnetic monopole structure G27 are respectively axially arranged on the near air gap side of the two shaft sections of the inner rotor 32.
In a specific implementation, the magnetizing directions of the magnetic monopole structure A21, the magnetic monopole structure F26 and the magnetic monopole structure G27 are radial and same.
EXAMPLE six
Referring to fig. 6, the inner rotor monopole motor of this embodiment includes a magnetic monopole structure a21, a magnetic monopole structure G27, a magnetic monopole structure H28, and a magnetic monopole structure D24, where the magnetic monopole structure a21, the magnetic monopole structure G27, the magnetic monopole structure H28, and the magnetic monopole structure D24 are disposed on an inner rotor 32, a rotating shaft 12 is installed in the inner rotor 32, the rotating shaft 12 is rotatably connected with a left end cap 14 and a right end cap 15, the left end cap 14 and the right end cap 15 are fixedly connected or integrally disposed through a casing 11, a stator 31 corresponding to the inner rotor 32 is installed in the casing 11, an air gap is disposed between the stator 31 and the inner rotor 32, and an armature winding 33 is disposed in the stator 31.
Wherein the housing 11 is a non-magnetic conductive body.
Here, it is understood that the left end cap 14 and the right end cap 15 are provided as a magnetic conductive structure or a non-magnetic conductive structure.
In a specific implementation, the magnetic isolation ring 16 is disposed at the axial center of the stator 31, the outer diameter of the axial middle section of the inner rotor 32 is larger than the outer diameters of the axial two side sections, the magnetic monopole structure a21 and the magnetic monopole structure D24 are respectively disposed on the axial two side sections of the inner rotor 32 near the air gap side, and the magnetic monopole structure G27 and the magnetic monopole structure H28 are respectively disposed on the axial middle section of the inner rotor 32 near the air gap side.
Specifically, the magnetic monopole structure a21 and the magnetic monopole structure D24 are magnetized in a radial direction and in an opposite direction, the magnetic monopole structure G27 and the magnetic monopole structure H28 are magnetized in a radial direction and in an opposite direction, the magnetic monopole structure a21 and the magnetic monopole structure G27 are magnetized in a same direction, and the magnetic monopole structure H28 and the magnetic monopole structure D24 are magnetized in a same direction.
It should be noted here that all the aforementioned embodiments can achieve the requirements of different power occasions through the series and parallel connection of the stator winding outlet terminals.
< Electrical machine apparatus >
The present embodiment also provides an electric motor apparatus including the inner rotor unipolar motor as described above.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an inner rotor unipolar motor, its characterized in that includes inner rotor and stator, be provided with magnetism unipolar structure on the inner rotor, be provided with armature winding in the stator, the current flow direction corresponds the setting with the direction of magnetizing of magnetism unipolar structure in the armature winding for coil side on the armature winding that is close to and keeps away from the rotor side receives syntropy electromagnetic force effect, with improvement motor torque density.
2. The inner rotor unipolar motor of claim 1, wherein an outer diameter of a shaft middle section of the inner rotor is unequal to outer diameters of shaft side sections of the inner rotor.
3. The inner rotor monopole motor of claim 1 wherein the magnetic monopole structure is an annular magnetic monopole.
4. The inner rotor monopole motor of claim 1, wherein the magnetic monopole structure is axially or radially disposed on the inner rotor.
5. The inner rotor unipolar motor of claim 1, wherein the magnetic unipolar structure body provided along an axial direction of the inner rotor is magnetized in a radial direction of the inner rotor; and the magnetic monopole structure body is arranged along the radial direction of the inner rotor and is magnetized along the axial direction of the inner rotor.
6. The inner rotor unipolar motor of claim 1, wherein a shaft middle section of the inner rotor is integrally provided with shaft both side sections of the inner rotor.
7. The inner rotor monopole motor of claim 1, wherein a magnetic monopole structure protective sleeve is further provided on an exterior of the magnetic monopole structure.
8. The inner rotor unipolar motor of claim 1, wherein a rotating shaft is installed in the inner rotor, the rotating shaft is rotatably connected with a left end cover and a right end cover, and the left end cover and the right end cover are fixedly connected or integrally arranged through a housing.
9. The inner rotor homopolar motor of claim 8 wherein the housing is a non-magnetically permeable housing;
or
The stator is fixedly connected with the shell or integrally arranged.
10. An electric motor apparatus, characterized by comprising an inner rotor unipolar motor according to any one of claims 1 to 9.
CN202011279583.8A 2020-11-16 2020-11-16 Inner rotor monopole motor and motor equipment Active CN112436635B (en)

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CN201887626U (en) * 2010-05-04 2011-06-29 刘新广 Novel permanent magnet motor
CN102237736A (en) * 2010-05-04 2011-11-09 刘新广 Novel permanent magnet motor
RU2435983C1 (en) * 2010-04-30 2011-12-10 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Double-rotor tooth wind-driven generator
CN110120716A (en) * 2019-05-15 2019-08-13 华中科技大学 A kind of combination array formula outer rotor axial and radial mixing behavior magnetic flow permanent magnet motor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101247071A (en) * 2007-02-14 2008-08-20 刘新广 Novel DC motor
CN101728934A (en) * 2008-12-24 2010-06-09 李相林 Toroidal vertical rotating efficient direct current generator without commutation
RU2435983C1 (en) * 2010-04-30 2011-12-10 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Double-rotor tooth wind-driven generator
CN201887626U (en) * 2010-05-04 2011-06-29 刘新广 Novel permanent magnet motor
CN102237736A (en) * 2010-05-04 2011-11-09 刘新广 Novel permanent magnet motor
CN110120716A (en) * 2019-05-15 2019-08-13 华中科技大学 A kind of combination array formula outer rotor axial and radial mixing behavior magnetic flow permanent magnet motor

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