CN113890293A - Brushless double-motor-port permanent magnet motor based on vernier effect - Google Patents

Brushless double-motor-port permanent magnet motor based on vernier effect Download PDF

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Publication number
CN113890293A
CN113890293A CN202111047853.7A CN202111047853A CN113890293A CN 113890293 A CN113890293 A CN 113890293A CN 202111047853 A CN202111047853 A CN 202111047853A CN 113890293 A CN113890293 A CN 113890293A
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motor
permanent magnet
stator
vernier
winding
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Chinese (zh)
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曲荣海
梁子漪
任翔
李大伟
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H02K1/165—Shape, form or location of the slots
    • 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
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • 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
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors
    • 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
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • 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
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
    • H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

The invention discloses a brushless double-motor port permanent magnet motor based on vernier effect, and belongs to the technology of permanent magnet motors. The stator, the outer rotor and the inner rotor are coaxially nested in sequence from outside to inside; the stator is of a split tooth structure, a main tooth extends out of a stator yoke, the top of the main tooth extends out of the yoke, an auxiliary tooth extends out of each yoke, and the auxiliary teeth are uniformly distributed along the circumferential direction; the auxiliary teeth are of an open slot structure; two sets of armature windings are arranged in the stator, wherein one set of the armature windings is arranged on the main teeth and is called a magnetic gear winding, the other set of the armature windings is arranged on the auxiliary teeth and is called a vernier winding, and the number of pole pairs of the two sets of the armature windings is unequal to be used as two electric ports of the motor. The double-electromechanical-port motor provided by the invention consists of a vernier motor and a magnetic gear motor, wherein the vernier motor works based on a magnetic field modulation principle, the function of adjusting torque is achieved, and the air gap magnetic flux density is higher. The invention improves the torque output capability of the motor and increases the torque density of the system.

Description

Brushless double-motor-port permanent magnet motor based on vernier effect
Technical Field
The invention belongs to the technical field of permanent magnet motors, and particularly relates to a brushless double-motor port permanent magnet motor based on vernier effect.
Background
The hybrid power system remarkably improves the fuel utilization efficiency of the engine and reduces the pollution degree of the engine through the advantage complementation between the electric drive system and the engine, and simultaneously skillfully avoids the technical bottleneck problems of low energy density, short service life and high cost of a storage battery in a pure electric drive system. Therefore, the method has high application value in the field of transportation.
The series-parallel hybrid power system combines the advantages of series connection and parallel connection, has high working efficiency of an engine and low energy consumption of the system, and has the characteristic that the engine and the motor can be driven together or independently in the parallel connection structure, thereby realizing the aims of high operating efficiency, low oil consumption and good control performance of the whole system under complex working conditions. However, the series-parallel power system has a complex structure, high cost and heavy weight.
To compensate for these drawbacks and make the system more compact, researchers have proposed brushless dual mechanical port permanent magnet motors. Patent document CN106374704B discloses a brushless dual-mechanical-port and dual-electric-port permanent magnet motor based on the principle of magnetic field modulation, which includes a stator and two rotors, respectively a modulation rotor and a permanent magnet rotor. Two sets of armature windings with different pole pair numbers are placed in the stator slot, one set is a modulation winding, and the other set is a conventional winding. The magnetic gear motor and the conventional permanent magnet synchronous motor are nested in the same motor to form a brushless double-motor-port permanent magnet motor, and the decoupling of the rotating speed and the torque of two mechanical ports (a modulation rotor and a permanent magnet rotor) is realized by respectively controlling the current frequency and the amplitude of two sets of armature windings.
However, the brushless dual mechanical port permanent magnet motor also has the following disadvantages: the excitation magnetic field generated by part of permanent magnets of the conventional permanent magnet motor of the motor structure needs to penetrate through three layers of air gaps, the equivalent air gap is long, the magnetic field is weak, the torque density of the motor is low, and the torque regulation capacity of a system is weak.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a brushless double-electromechanical-port permanent magnet motor based on a vernier effect, and aims to solve the problems that the conventional permanent magnet motor part has lower torque and the motor system has poorer torque regulation capability due to longer equivalent air gap of the existing double-mechanical-port permanent magnet motor based on a magnetic field modulation principle.
In order to achieve the aim, the invention provides a brushless double-electromechanical-port permanent magnet motor based on vernier effect, which comprises a stator, an outer rotor and an inner rotor, wherein the stator, the outer rotor and the inner rotor are coaxially nested in sequence from outside to inside, and two sets of armature windings are arranged in the stator.
The stator is the split tooth structure, and stator yoke portion extends first order tooth, is called the main tooth, and first order tooth top extension yoke portion extends yoke portion, extends the second level tooth at each yoke portion, is called supplementary tooth, and supplementary tooth along circumferencial direction evenly distributed.
The auxiliary tooth part of stator is open slot structure, and is different from traditional brushless double-motor port motor, and the auxiliary tooth not only plays the effect of providing the magnetic flux route, also plays the effect of "pole pair number converter" as the modulation ring for the motor still can normally work under the unequal circumstances of stator pole pair number and rotor pole pair number, produces stable torque.
The two sets of armature windings are arranged in the stator, one set of the armature windings is arranged on the main teeth and is called a magnetic gear winding, the other set of the armature windings is arranged on the auxiliary teeth and is called a vernier winding, and the number of pole pairs of the two sets of the armature windings is unequal to be used as two electric ports of the motor.
The magnetic gearThe number of pole pairs generated by the winding is PwmThe winding, the stator, the outer rotor and the inner rotor form a structure of a magnetic gear motor, and the structure plays a role in transmitting torque.
The vernier winding generates a pole pair number PwvThe magnetic field, the winding, the stator and the outer rotor are combined into a vernier permanent magnet motor structure, the function of adjusting torque is achieved, the conventional permanent magnet motor part in a traditional brushless double-motor port motor system is replaced, and the working principle is different from that of a conventional permanent magnet motor and is a magnetic field modulation principle.
Further, the number of pole pairs of the armature magnetic field generated by the magnetic gear winding is PwmThe number of pole pairs of the outer rotor is ProThe number of pole pairs of the inner rotor is PriThen P iswm＝|Pro±Pri|。
Further, the armature magnetic field pole pair number generated by the vernier winding is PwvThe number of the stator auxiliary teeth is ZstThen P iswv＝|Pro±Zst|。
Further, the stator can be placed outside or inside the two rotors to form an outer stator or inner stator structure.
Further, the stator armature winding is not limited to a three-phase winding, and may be an n-phase winding, where n > 3.
The outer rotor can be formed by non-magnetic conductive blocks and ferromagnetic blocks alternatively or tangentially excited permanent magnets and ferromagnetic blocks alternatively.
The inner rotor may be a reluctance rotor or a permanent magnet rotor: the reluctance rotor is formed by laminating silicon steel sheets and is of a salient pole structure; the permanent magnet rotor consists of a yoke part formed by laminating silicon steel sheets and a permanent magnet, wherein the permanent magnet can be arranged on the surface or inside the yoke part of the rotor.
Furthermore, the double-motor-port permanent magnet motor can be applied to various technical fields of hybrid electric vehicles, hybrid electric planes and the like.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) the double-electromechanical-port motor provided by the invention consists of a vernier motor and a magnetic gear motor, wherein the vernier motor part plays a role in adjusting torque, only one layer of air gap is formed, the magnetic resistance of a magnetic circuit is smaller, and the magnetic flux density of the air gap is higher. In addition, the vernier motor with high torque density is embedded into the magnetic gear motor, so that the torque output capacity of the motor is further improved, and the torque density of a system is increased.
(2) The brushless double-electromechanical-port permanent magnet motor system based on the vernier effect is mainly used for energy distribution and control of a hybrid power system. According to the road condition, the engine state, the battery electric quantity and other factors when the hybrid power system is used, the switching of different working conditions is realized, for example, the hybrid power system is used as a motor for providing electric drive, as a generator for recovering braking energy, and as a transmission for distributing the power of the engine and an output port (such as wheels). And the rotating speed and the torque of the two mechanical ports are decoupled by controlling the two electric ports, and one motor completes the functions of a generator, a planetary gear and a motor in the traditional hybrid power system, so that the integration level of the system is higher.
Drawings
Fig. 1 is a schematic diagram of a dual electromechanical port permanent magnet motor according to an embodiment of the present invention;
FIG. 2 is a schematic view of a stator structure of the motor shown in FIG. 1;
FIG. 3 is a schematic structural diagram of an outer rotor of the corresponding motor shown in FIG. 1;
fig. 4 is a schematic structural diagram of an inner rotor of the motor corresponding to fig. 1;
FIG. 5 is a schematic structural diagram of a magnetic gear motor portion of the motor system of FIG. 1;
FIG. 6 is a schematic view of a cursor motor portion of the corresponding motor system of FIG. 1;
the same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: 1. the stator comprises a stator body 11, a main tooth 12, an auxiliary tooth 13, a stator first-stage yoke part 14, a stator second-stage yoke part 2, an outer rotor 3, an inner rotor 4, a magnetic gear winding 5, a vernier winding 6 and a permanent magnet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the invention provides a brushless dual-motor port permanent magnet motor based on vernier effect, which comprises a stator 1, an outer rotor 2 and an inner rotor 3, wherein the stator 1, the outer rotor 2 and the inner rotor 3 are coaxially nested in sequence from outside to inside. The magnetic gear winding 4 is placed on the stator main teeth and the vernier winding 5 is placed on the stator auxiliary teeth. The permanent magnet 6 is embedded between the outer rotor ferromagnetic blocks.
The outer rotor 2 and the inner rotor 3 serve as two mechanical ports of the motor, and the magnetic gear winding 4 and the vernier winding 5 serve as two electrical ports of the motor.
As shown in fig. 2, the stator 1 includes a first-stage stator core and a second-stage stator core; wherein the first stage stator core comprises a main tooth 11 and a stator first stage yoke portion 13, and the second stage core comprises an auxiliary tooth 12 and a stator second stage yoke portion 14.
The stator 1 is of a tooth groove structure, and one or more auxiliary teeth 12 are connected to one main tooth 11. The auxiliary teeth 12 not only serve to provide a flux path, but also serve as a modulation ring to serve as a "pole pair transformer", that is, the number of pole pairs of the excitation magnetic field generated by the permanent magnet is modulated, so that a magnetic field equal to the number of pole pairs of the vernier winding is generated in the air gap magnetic field.
The magnetic gear winding 4 is placed in a slot of the first-stage stator core;
the vernier winding 5 is placed in a slot of the second-stage stator core.
As shown in fig. 3, the outer rotor 2 comprises equally spaced magnet guiding blocks between which evenly spaced permanent magnets 6 are embedded as mechanical ports of the motor.
Specifically, the permanent magnets are excited tangentially, and the excitation directions of the adjacent permanent magnets are opposite.
As shown in fig. 4, the inner rotor 3 is formed by axially laminating magnetic silicon steel sheets and has a salient pole structure.
Specifically, the number of pole pairs P of the armature magnetic field generated by the magnetic gear winding 4wmEqual to the number P of outer rotor 2 pole pairsroAnd the number of pole pairs P of the inner rotorriSum or difference absolute value, i.e. Pwm＝|Pro±Pri|。
Specifically, the armature magnetic field pole pair number P generated by the vernier winding 5wvEqual to the number Z of the stator auxiliary teeth 13stAnd 2 pole pairs P of outer rotorroSum or difference absolute value, i.e. Pwv＝|Pro±Zst|。
Specifically, the two sets of windings may be both single-layer windings or double-layer windings, or one set of windings is double-layer windings and the other set of windings is single-layer windings.
Specifically, the two sets of windings are three-phase windings or n-phase windings, wherein n > 3.
Specifically, the stator 1, the magnetic gear winding 4, the inner rotor 3 and the permanent magnet 6 on the outer rotor in the brushless dual electromechanical port motor form a first unit motor, i.e., a magnetic gear motor structure, as shown in fig. 5;
the stator 1, the vernier winding 5 and the outer rotor 2 in the brushless dual-electromechanical port motor form a second unit motor, namely, a vernier permanent magnet motor structure, as shown in fig. 6.
Specifically, the armature magnetic field of the magnetic gear motor structure corresponds to the rotating speed namThe armature magnetic field of the vernier motor structure has a corresponding rotation speed of navThe rotating speed of the outer rotor is nroThe rotational speed of the inner rotor is nri. Satisfies the formula:
Figure BDA0003251572710000061
specifically, as shown in fig. 1, in the brushless dual-electromechanical port permanent magnet motor based on the vernier effect, the number of slots of the first-stage core of the stator is 6, and the number of slots of the second-stage core of the stator is 18; the number of pole pairs of the outer rotor is 15, wherein the magnet guide blocks and the permanent magnetsThe number of the permanent magnets is 30, the permanent magnets are excited tangentially, and the excitation directions of the adjacent permanent magnets are opposite; the number of the inner rotor salient pole teeth is 13; the number of pole pairs of the magnetic gear winding is Pwm＝Pro-Pri15-13-2; the pole pair number of the vernier winding is Pwv＝Zst-Pro＝18-15＝3。
The 15 pairs of pole excitation magnetomotive force generated by the permanent magnet on the outer rotor is modulated by the teeth of the inner rotor to act in the outer air gap to generate 2 pairs of pole main magnetic fields, and the 2 pairs of pole main magnetic fields interact with the 2 pairs of pole armature magnetic fields generated by the magnetic gear winding to generate stable partial torque of the magnetic gear motor, so that the torque transmission between the two mechanical ports of the inner rotor and the outer rotor is realized. The rotating speed of the inner rotor can be controlled by the electrifying frequency of the magnetic gear winding; the output torque of the inner rotor is only controlled by the magnetic gear winding, and according to the required torque value, sinusoidal current with corresponding amplitude and current angle is introduced into the magnetic gear winding, so that the output torque of the inner rotor can be adjusted.
In addition, 15 pairs of pole excitation magnetomotive force generated by the permanent magnet on the outer rotor acts on the outer air gap through the modulation of the stator auxiliary teeth to generate 3 pairs of pole main magnetic fields, and the 3 pairs of pole main magnetic fields interact with the 3 pairs of pole armature magnetic fields generated by the vernier winding to generate stable vernier motor part torque, so that the adjustment of the rotating speed and the torque on the outer rotor is realized. The rotating speed of the outer rotor can be controlled by the electrifying frequency of the vernier winding; the torque of the outer rotor is controlled by the magnetic gear winding and the vernier winding together, the torque provided by the vernier winding for the outer rotor is the difference between the output torque required by the system and the torque generated on the outer rotor by the magnetic gear motor structure, and the output torque of the outer rotor can be adjusted by introducing sinusoidal current with corresponding amplitude and current angle into the vernier winding according to the required torque difference.
In summary, the rotational speed and torque of the two mechanical ports can be controlled by adjusting the frequency, amplitude and current angle of the sinusoidal current in the magnetic gear winding and the vernier winding, respectively.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. A brushless double-electromechanical-port permanent magnet motor based on vernier effect is characterized by comprising a stator, an outer rotor and an inner rotor which are coaxially nested in sequence from outside to inside;
the stator is of a split tooth structure, first-stage teeth, namely main teeth, extend out of a yoke part of the stator, yoke parts extend out of the tops of the main teeth, second-stage teeth, namely auxiliary teeth, extend out of each yoke part, and the auxiliary teeth are uniformly distributed in the circumferential direction; the auxiliary teeth are of open slot structures;
two sets of armature windings are arranged in the stator, wherein one set of the armature windings is arranged on the main teeth and is called a magnetic gear winding, the other set of the armature windings is arranged on the auxiliary teeth and is called a vernier winding, and the number of pole pairs of the two sets of the armature windings is unequal to be used as two electric ports of the motor.
2. The brushless double electromechanical port permanent magnet motor of claim 1, wherein the magnetic gear winding generates a pole pair number PwmThe winding, the stator, the outer rotor and the inner rotor form a structure of a magnetic gear motor, and the structure plays a role in transmitting torque.
3. The brushless double electromechanical port permanent magnet motor of claim 1, wherein the vernier winding produces a pole pair number PwvThe winding, the stator and the outer rotor form a vernier permanent magnet motor structure, and the function of adjusting torque is achieved.
4. The brushless dual-motor port permanent magnet motor as claimed in claim 2, wherein the number of pole pairs of the outer rotor is ProThe number of pole pairs of the inner rotor is PriThen P iswm＝|Pro±Pri|。
5. The brushless double motor port permanent magnet motor of claim 3, wherein the number of stator auxiliary teeth is ZstThen P iswv＝|Pro±Zst|。
6. The brushless dual-motor port permanent magnet motor as claimed in claim 1, wherein the outer rotor is formed by non-conductive magnetic blocks alternated with ferromagnetic blocks, or by tangentially-excited permanent magnets alternated with ferromagnetic blocks.
7. The brushless dual electromechanical port permanent magnet motor of claim 1, wherein the inner rotor can be a reluctance rotor or a permanent magnet rotor.
CN202111047853.7A 2021-09-08 2021-09-08 Brushless double-motor-port permanent magnet motor based on vernier effect Pending CN113890293A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090072650A1 (en) * 2006-04-20 2009-03-19 Matsushita Electric Industrial Co., Ltd. Motor
CN103795159A (en) * 2014-01-03 2014-05-14 东南大学 Stator-rotor double-permanent-magnet-type-vernier motor
CN109921591A (en) * 2019-03-29 2019-06-21 华中科技大学 A kind of two-sided permanent magnet two-shipper electricity port electric motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090072650A1 (en) * 2006-04-20 2009-03-19 Matsushita Electric Industrial Co., Ltd. Motor
CN103795159A (en) * 2014-01-03 2014-05-14 东南大学 Stator-rotor double-permanent-magnet-type-vernier motor
CN109921591A (en) * 2019-03-29 2019-06-21 华中科技大学 A kind of two-sided permanent magnet two-shipper electricity port electric motor

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Application publication date: 20220104