CN105958676A - Magnetic flux switching type permanent magnet motor with magnetic leakage self-locking capability - Google Patents
Magnetic flux switching type permanent magnet motor with magnetic leakage self-locking capability Download PDFInfo
- Publication number
- CN105958676A CN105958676A CN201610267299.6A CN201610267299A CN105958676A CN 105958676 A CN105958676 A CN 105958676A CN 201610267299 A CN201610267299 A CN 201610267299A CN 105958676 A CN105958676 A CN 105958676A
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- permanent magnet
- shaped
- magnetic
- switching type
- magnetic conduction
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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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
-
- 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
- H02K1/17—Stator cores with permanent 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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A magnetic flux switching type permanent magnet motor with flux leakage self-locking capability is provided wherein U-shaped stator iron cores are connected as a whole through T-shaped magnetic bridges and fixed bosses are located on the T-type magnetic bridges. A stator pole consists of one tooth of two adjacent U-shaped stator core units, a T-shaped magnetic bridge located therebetween, two fixed bosses, and two permanent magnet blocks adjacent to the T-shaped magnetic bridges. Each armature coil is mounted on a stator pole, and four armature coils which are mutually perpendicular to each other are connected in series into a one-phase armature winding. According to the invention, for the unique shape of the magnetic bridges, the motor is empowered with a magnetic leakage self-locking capability; the difficulty of processing and is reduced; the assembling precision of the stator improves. At the same time, the leakage amount of the permanent magnet can be considerably reduced; further, the fixed bosses steer the permanent magnet from dangerously moving in the radial direction, therefore, increasing reliability of the motor. In addition, the existence of the magnetic bridges increases the inductance of the motor q-axis, thereby effectively increasing the magnetic resistance torque.
Description
Technical field
The present invention relates to technical field of motors, particularly relate to a kind of Magneticflux-switching type magneto.
Background technology
Continuous aggravation along with energy crisis, use permanent magnet excitation to replace electrical excitation and become global common recognition to save energy resource consumption, simultaneously, owing to China is the country that rare earth resources is the abundantest in the world, the rare-earth permanent-magnet electric machine of open research and extension application new structure, efficiency and the power density of motor can be significantly improved, there is important theory significance and use value, the stator permanent magnetic type electric occurred the most in recent years, owing to permanent magnet and armature winding are respectively positioned on stator, make on the rotor of the type motor both without winding also brushless, cause electric machine structure the firmest, compact, robustness is high, it is quite suitable for high-speed cruising.
Flux switch permanent magnet motor is as the main representative of stator permanent magnetic type electric, there is induced potential sine degree high, efficiency is high, power density is high, firm in structure reliably, torque is exerted oneself big advantage, it is very suitable for the big torsion of low speed, the application scenario that high speed wide range speed control runs, therefore, flux switch permanent magnet motor possesses quite varied application potential, in industry governing system, household electrical appliance, the aspects such as Electrified Transmission have shown stronger competitiveness, particularly in electric automobile field, the high power density that it is possessed, the advantages such as rotor unfailing performance is strong, more become current study hotspot both domestic and external.
But, the flux switch permanent magnet motor proposed at present, stator core is dispersed structure, and processing and assembly to motor bring bigger difficulty, especially have a strong impact on the splicing accuracy of motor, weaken the Performance And Reliability of motor；Although scattered stator core being connected to become an entirety can solve this problem, but permanent magnetism leakage field can be caused so that permanent magnet utilization rate and torque density all have a certain degree of decline；Further, permanent magnet is cuboid, and the surface smoother contacted with stator core, easily causes and slides in its place groove, is not fixed easily, and there is the probability radially come off along motor, and properly functioning to motor brings potential safety hazard.
Summary of the invention
For the problems referred to above overcoming existing flux switch permanent magnet motor to exist, the invention provides a kind of Magneticflux-switching type magneto with leakage field self-lock ability.
The technical scheme is that a kind of Magneticflux-switching type magneto with leakage field self-lock ability of the present invention, including U-shaped stator core unit 1, T-shaped magnetic conduction bridge 2, armature coil 3, permanent magnet 4 and rotor core 6, U-shaped stator core unit 1 is connected to become an entirety by T-shaped magnetic conduction bridge 2, U-shaped stator core unit 1 and T-shaped magnetic conduction bridge 2, composition stator core, each tooth of two adjacent U-shaped stator core unit 1 and be positioned at a T-shaped magnetic conduction bridge 2 between the two and the two piece permanent magnets 4 adjacent with T-shaped magnetic conduction bridge 2 form a stator poles；The magnetizing direction of the permanent magnet 4 being positioned in adjacent stator pole is contrary, and the magnetizing direction of the two piece permanent magnets 4 adjacent with T-shaped magnetic conduction bridge 2 is identical, and permanent magnet 4 is cutting orientation magnetizing；Armature coil 3 is sleeved in a stator poles, and in space, orthogonal 4 armature coils 3 head and the tail series connection becomes a phase armature winding.
Described T-shaped magnetic conduction bridge 2 is provided with fixing lug boss 5.
Described rotor core 6 is straight groove structure or flume structure.
Described U-shaped stator core unit 1, T-shaped magnetic conduction bridge 2 and rotor core 6 are magnetic conductive material.
The permanent magnetic field of described permanent magnet 4 is a kind of magnetic field in radial magnetic field, axial magnetic field or transverse magnetic field or the combination in two of which magnetic field.
Described armature coil 3 is concentratred winding form.
The Magneticflux-switching type magneto with leakage field self-lock ability of the present invention, stator core becomes an entirety, reduces difficulty of processing, improves stator splicing accuracy and reliability；Unique magnetic conduction bridge shape makes motor have permanent magnetism leakage field self-lock ability, due to identical with the magnetizing direction of two pieces of permanent magnets that T-shaped magnetic conduction bridge contacts, therefore permanent magnet is in leakage field magnetic flux in opposite direction of radial direction distal end, and then form leakage field self-locking, while reducing difficulty of processing, improving stator splicing accuracy, significantly reduce the size of permanent magnet leakage field, improve the size of permanent magnetism utilization rate and permanent-magnet torque；Fixing lug boss makes motor can avoid the danger that permanent magnet moves radially, and improves the reliability of motor；The existence of magnetic conduction bridge improves the q axle inductance size of motor, and then is effectively improved the size of reluctance torque；Both there is no winding on this rotor, there is no again a permanent magnet, compact conformation, firm reliably, rotary inertia is little and rotor is one piece of entirety, is suitable for high-speed cruising；Armature winding and permanent magnet are all placed in stator, it is easy to heat radiation, and anti-vibration ability is strong, reliable.
Accompanying drawing explanation
Fig. 1 is the Magneticflux-switching type permanent magnet motor structure figure that the present invention has leakage field self-lock ability.
In figure: U-shaped stator core unit 1, T-shaped magnetic conduction bridge 2, armature coil 3, permanent magnet 4, fixing lug boss 5 and rotor core the 6, first armature coil the 301, second armature coil the 302, the 3rd armature coil the 303, the 4th armature coil the 304, the 5th armature coil the 305, the 6th armature coil the 306, the 7th armature coil the 307, the 8th armature coil the 308, the 9th armature coil the 309, the tenth armature coil the 310, the 11st armature coil the 311, the 12nd armature coil 312.
Detailed description of the invention
The Magneticflux-switching type permanent magnet motor structure with leakage field self-lock ability of the present invention is as shown in Figure 1, this motor includes that this motor includes U-shaped stator core unit 1, T-shaped magnetic conduction bridge 2, armature coil 3, permanent magnet 4, fixing lug boss 5 and rotor core 6, and U-shaped stator core unit 1 is connected to become an entirety by T-shaped magnetic conduction bridge 2；Fixing lug boss 5 is positioned on T-shaped magnetic conduction bridge 2；U-shaped stator core unit 1, T-shaped magnetic conduction bridge 2 and fixing lug boss 5 form stator core, stator core and rotor core can be designed to match synthesis inner rotor core or outer-rotor structure as required；Each tooth of two adjacent U-shaped stator core unit 1 and be positioned at a T-shaped magnetic conduction bridge 2 between the two, two boss 6 being positioned on magnetic conduction bridge and the two piece permanent magnets 4 adjacent with T-shaped magnetic conduction bridge and form a stator poles；Permanent magnet 4 is cutting orientation magnetizing；The magnetizing direction of the permanent magnet 4 being positioned in adjacent stator pole is contrary, and the magnetizing direction of the two piece permanent magnets 4 adjacent with T-shaped magnetic conduction bridge 2 is identical；Armature coil 3 is concentratred winding form, and each armature coil 3 is sleeved in a stator poles；In space, orthogonal four armature coils 3 head and the tail series connection becomes a phase armature winding.
In said structure, first armature coil the 301, the 4th armature coil the 304, the 7th armature coil the 307, the tenth armature coil 310 is composed in series A phase armature winding, second armature coil the 302, the 5th armature coil the 305, the 8th armature coil the 308, the 11st armature coil 311 is composed in series B phase armature winding, and the 3rd armature coil the 303, the 6th armature coil the 306, the 9th armature coil the 309, the 12nd armature coil 312 is composed in series C phase armature winding.
Permanent magnet 4 permanent magnetic field and electricity excitation magnetic field are a kind of magnetic field in radial magnetic field, axial magnetic field or transverse magnetic field or the combination in two of which magnetic field；The frame for movement of this motor is the combining form of one or more in rotation, straight line, plane, solid.U-shaped stator core unit and rotor core 6 use silicon steel punched chip or other permeability magnetic material laminated to make；Permanent magnet 4 is neodymium iron boron or other permanent magnetism material.
This motor remains the tradition advantage that flux switch motor is compact, simple, robustness is good, be suitable to high-speed cruising, efficiency high, power density is big in structure with performance；On the premise of maintaining stator core to become an entirety, the T-shaped magnetic conduction bridge 2 of its uniqueness is shaped such that motor has permanent magnetism leakage field self-lock ability, therefore while reducing difficulty of processing, improving stator splicing accuracy, significantly reduce the size of permanent magnet leakage field, and fixing lug boss 5 makes motor can avoid the danger that permanent magnet moves radially, improve the reliability of motor.Specifically, due to identical with the magnetizing direction of two pieces of permanent magnets 4 that T-shaped magnetic conduction bridge 2 contacts, therefore the leakage field at the radial direction distal end of permanent magnet is in opposite direction, and then forms leakage field self-locking, significantly reduce the size of permanent magnetism leakage field, improve the size of permanent magnetism utilization rate and permanent-magnet torque.In this motor, the existence of T-shaped magnetic conduction bridge improves the q axle inductance size of motor, and then is effectively improved the size of reluctance torque.
In this motor, in rotor core 6 both without permanent magnet also without winding, for straight groove structure or flume structure；The rotor core of straight groove structure can ensure under conditions of using centralized armature coil and rotor core not skewed slot, so that it may obtains the static characteristics such as sine degree the highest magnetic linkage, induced potential and inductance；If the sine degree of the static characteristics such as motor excitation magnetic linkage, induced potential and inductance is required higher, also can be by the rotor chute certain angle of straight groove structure to improve sine.
The present invention is described by embodiment, and those skilled in the art know, without departing from the spirit and scope of the present invention, these features and embodiment can carry out various change or equivalence is replaced.It addition, under the teachings of the present invention, can modify these features and embodiment to adapt to particular situation and material without departing from the spirit and scope of the present invention.Therefore, the present invention is not limited to the particular embodiment disclosed, and the embodiment in the range of fallen with claims hereof broadly falls into protection scope of the present invention.
Claims (6)
1. a Magneticflux-switching type magneto with leakage field self-lock ability, it is characterized in that: include U-shaped stator core unit (1), T-shaped magnetic conduction bridge (2), armature coil (3), permanent magnet (4) and rotor core (6), U-shaped stator core unit (1) is connected to become an entirety by T-shaped magnetic conduction bridge (2), U-shaped stator core unit (1) and T-shaped magnetic conduction bridge (2), composition stator core, each tooth of two adjacent U-shapeds stator core unit (1) and be positioned at T-shaped magnetic conduction bridge (2) between the two and adjacent with T-shaped magnetic conduction bridge (2) two pieces of permanent magnets (4), one stator poles of composition；The magnetizing direction of the permanent magnet (4) being positioned in adjacent stator pole is contrary, and the magnetizing direction of the two piece permanent magnets (4) adjacent with T-shaped magnetic conduction bridge (2) is identical, and permanent magnet (4) is cutting orientation magnetizing；Armature coil (3) is sleeved in a stator poles, and in space, orthogonal 4 armature coils (3) head and the tail series connection becomes a phase armature winding.
A kind of Magneticflux-switching type magneto with leakage field self-lock ability the most according to claim 1, it is characterised in that: described T-shaped magnetic conduction bridge (2) is provided with fixing lug boss (5).
A kind of Magneticflux-switching type magneto with leakage field self-lock ability the most according to claim 1, it is characterised in that: described rotor core (6) is straight groove structure or flume structure.
A kind of Magneticflux-switching type magneto with leakage field self-lock ability the most according to claim 1, it is characterised in that: described U-shaped stator core unit (1), T-shaped magnetic conduction bridge (2) and rotor core (6) they are magnetic conductive material.
A kind of Magneticflux-switching type magneto with leakage field self-lock ability the most according to claim 1, it is characterised in that: the permanent magnetic field of described permanent magnet (4) is a kind of magnetic field in radial magnetic field, axial magnetic field or transverse magnetic field or the combination in two of which magnetic field.
A kind of Magneticflux-switching type magneto with leakage field self-lock ability the most according to claim 1, it is characterised in that: described armature coil (3) is concentratred winding form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267299.6A CN105958676A (en) | 2016-04-27 | 2016-04-27 | Magnetic flux switching type permanent magnet motor with magnetic leakage self-locking capability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267299.6A CN105958676A (en) | 2016-04-27 | 2016-04-27 | Magnetic flux switching type permanent magnet motor with magnetic leakage self-locking capability |
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| CN105958676A true CN105958676A (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610267299.6A Pending CN105958676A (en) | 2016-04-27 | 2016-04-27 | Magnetic flux switching type permanent magnet motor with magnetic leakage self-locking capability |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972730A (en) * | 2017-06-02 | 2017-07-21 | 南京航空航天大学金城学院 | One kind distribution field excitation linear permanent-magnet type flux switching motor |
| CN107968539A (en) * | 2017-12-19 | 2018-04-27 | 哈尔滨理工大学 | A kind of novel switched flux linkage motor of permanent magnet segmentation |
| CN109995211A (en) * | 2019-03-29 | 2019-07-09 | 东南大学 | A kind of stator is the same as polar form hybrid permanent magnet memory electrical machine |
| CN112104111A (en) * | 2020-09-14 | 2020-12-18 | 北京世纪康华电气科技有限公司 | Exciter stator punching sheet, stator core, stator, hybrid excitation device and generator |
| TWI716322B (en) * | 2020-06-01 | 2021-01-11 | 國立成功大學 | Electric mechanical structure and stator core component thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290883A (en) * | 2011-08-26 | 2011-12-21 | 东南大学 | Redundant excitation double-armature winding multiphase magnetic flux switching motor with fault-tolerant teeth |
| CN103051098A (en) * | 2013-01-22 | 2013-04-17 | 广东肇庆新广仪科技有限公司 | Multi-component electric/magnetic passageway and low-cogging torque magnetic flow switching type motor |
| CN204391919U (en) * | 2015-02-04 | 2015-06-10 | 扬州市新港电机有限公司 | A kind of Magneticflux-switching type magneto with permanent magnet fixing lug boss |
-
2016
- 2016-04-27 CN CN201610267299.6A patent/CN105958676A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290883A (en) * | 2011-08-26 | 2011-12-21 | 东南大学 | Redundant excitation double-armature winding multiphase magnetic flux switching motor with fault-tolerant teeth |
| CN103051098A (en) * | 2013-01-22 | 2013-04-17 | 广东肇庆新广仪科技有限公司 | Multi-component electric/magnetic passageway and low-cogging torque magnetic flow switching type motor |
| CN204391919U (en) * | 2015-02-04 | 2015-06-10 | 扬州市新港电机有限公司 | A kind of Magneticflux-switching type magneto with permanent magnet fixing lug boss |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972730A (en) * | 2017-06-02 | 2017-07-21 | 南京航空航天大学金城学院 | One kind distribution field excitation linear permanent-magnet type flux switching motor |
| CN107968539A (en) * | 2017-12-19 | 2018-04-27 | 哈尔滨理工大学 | A kind of novel switched flux linkage motor of permanent magnet segmentation |
| CN109995211A (en) * | 2019-03-29 | 2019-07-09 | 东南大学 | A kind of stator is the same as polar form hybrid permanent magnet memory electrical machine |
| TWI716322B (en) * | 2020-06-01 | 2021-01-11 | 國立成功大學 | Electric mechanical structure and stator core component thereof |
| CN112104111A (en) * | 2020-09-14 | 2020-12-18 | 北京世纪康华电气科技有限公司 | Exciter stator punching sheet, stator core, stator, hybrid excitation device and generator |
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Application publication date: 20160921 |