CN207977873U - A kind of magneto - Google Patents
A kind of magneto Download PDFInfo
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- CN207977873U CN207977873U CN201820044094.6U CN201820044094U CN207977873U CN 207977873 U CN207977873 U CN 207977873U CN 201820044094 U CN201820044094 U CN 201820044094U CN 207977873 U CN207977873 U CN 207977873U
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Abstract
The utility model embodiment discloses a kind of magneto.The magneto includes：Circular stator structure and circular rotor structure；Stator core is in the annular surface for closing on rotor structure, peripherally disposed multiple stators modulation tooth, armature tooth and armature slot, according to the sequence cycle arrangement of stator modulation tooth, an armature slot, an armature tooth and another armature slot, first stator permanent magnet is corresponded with armature tooth, one end of rotor structure is closed on positioned at armature tooth, the first stator permanent magnet radially magnetizes；Second stator permanent magnet is located at the notch of corresponding armature slot, and the second stator permanent magnet along the circumferential direction magnetizes；The magnetizing direction of corresponding second stator permanent magnet of two neighboring armature slot is opposite；Rotor core adjacent stator structure annular surface, it is along the circumferential direction alternate to be provided with multiple rotor tooths and rotor slot.The technical solution of the utility model embodiment can directly drive load, to break away from the intermediate gearing in conventional drivetrain.
Description
Technical field
The utility model is related to field of motor manufacturing more particularly to a kind of magnetoes.
Background technology
Traditional low speed rotation system coordinates reduction gear box or belt reduction unit to realize using high-speed electric expreess locomotive.Subtract
The presence of fast gear-box or belt reduction unit certainly will bring many troubles, such as：Transmission efficiency is low, bulky, equipment is stupid
Weight generates noise pollution, needs to lubricate, need periodic maintenance etc..
Therefore, it is necessary to manufacture direct driving motor, to directly drive load, to break away from the dress of the intermediate transmission in conventional drivetrain
It sets, eliminates various troubles that intermediate gearing is brought.
Utility model content
The utility model embodiment provides a kind of magneto, load can be directly driven, to break away from conventional drivetrain
In intermediate gearing, eliminate various troubles for bringing of intermediate gearing.
The utility model embodiment provides a kind of magneto, including：
Circular stator structure and circular rotor structure；
Stator structure and rotor structure are donut,
Stator structure includes annular stator core, multiple armature winding, multiple first stator permanent magnets and multiple second
Stator permanent magnet；
Stator core is peripherally disposed to have multiple stators modulation teeth, armature in the annular surface for closing on rotor structure
Tooth and armature slot,
Multiple stators modulation teeth, armature tooth and armature slot, according to stator modulation tooth, an armature slot, an armature tooth and another
The sequence cycle arrangement of one armature slot,
Armature winding is located at according to default winding method, winding stator modulation tooth and armature tooth in armature slot；
First stator permanent magnet is corresponded with armature tooth, and one end of rotor structure, the first stator are closed on positioned at armature tooth
Permanent magnet radially magnetizes；
Second stator permanent magnet is corresponded with armature slot, is located at the notch of corresponding armature slot, the second stator permanent magnet
Along the circumferential direction magnetize；
The magnetizing direction of corresponding second stator permanent magnet of two neighboring armature slot is opposite；
Rotor structure includes circular ring shape rotor core；
Rotor core adjacent stator structure annular surface, it is along the circumferential direction alternate to be provided with multiple rotor tooths and rotor
Slot.
Further, rotor structure further includes multiple rotor permanent magnets,
Rotor permanent magnet is corresponded with rotor slot, and rotor permanent magnet is embedded in corresponding rotor slot, rotor permanent magnet edge
Radial magnetizing.
Further, the magnetizing direction of the first stator permanent magnet and the magnetizing direction of rotor permanent magnet are identical.
Further, corresponding two the second stator permanent magnets of two armature slots adjacent with same armature tooth, with armature
The corresponding first stator permanent magnet face of tooth.
Further, the magnetizing direction of the first stator permanent magnet is radially backwards to rotor structure, and rotor permanent magnet fills
Magnetic direction is to be directed radially towards stator structure, corresponding two the second stator permanent magnets of adjacent with same armature tooth two armature slots
The magnetizing direction of body is backwards to corresponding first stator permanent magnet of armature tooth；
Alternatively, the magnetizing direction of the first stator permanent magnet is to be directed radially towards rotor structure；The side of magnetizing of rotor permanent magnet
To for radially backwards to stator structure, corresponding two the second stator permanent magnets of adjacent with same armature tooth two armature slots
Magnetizing direction is to be directed toward corresponding first stator permanent magnet of armature tooth.
Further, the number of pole-pairs Pw=∣ Z1-Z2 ∣ of armature winding, wherein Z1 is the number of the first stator permanent magnet, Z2
For the number of rotor permanent magnet；The rotating speed Ω r of the frequency f and rotor structure of sinusoidal ac that armature winding is injected or generated
Relationship be：60*f=Z2* Ω r.
Further, annular stator structure is located on the outside of annular rotor structure, alternatively, annular stator structure is located at cyclic annular turn
On the inside of minor structure.
Further, which is three phase electric machine, and the number Zs of armature slot is 6 integral multiple, and there are N and k to make
It obtains * 360 ° of (N-1)+120 ° of * Pw/Zs=k*360 ° to set up, wherein N is positive integer, and k is integer, and N is less than or equal to Zs.
Further, stator core includes the first silicon steel sheet of multiple high magnetic properties, and multiple first silicon steel sheets are in an axial direction
Laminate arrangement；Rotor core includes the second silicon steel sheet of multiple high magnetic properties, and multiple second silicon steel sheets laminate arrangement in an axial direction.
Further, rotor permanent magnet and the first stator permanent magnet are rubidium iron B permanent magnetic material；Second stator permanent magnet
Including following at least one materials：Rubidium iron B permanent magnetic material and ferrite；The default winding method of armature winding includes centralization
Or it is distributed.
The technical solution of the utility model embodiment by stator core in the annular surface for closing on rotor structure, circumferentially
Direction is provided with multiple stator modulation teeth, armature tooth and armature slot, multiple stator modulation teeth, armature tooth and armature slot, according to one
Stator modulates the sequence cycle arrangement of tooth, an armature slot, an armature tooth and another armature slot, and armature winding is according to default coiling side
Formula, winding stator modulation tooth and armature tooth, are located in armature slot；First stator permanent magnet is corresponded with armature tooth, is located at electricity
Armature tooth closes on one end of rotor structure, and the first stator permanent magnet radially magnetizes；Second stator permanent magnet is a pair of with armature slot one
It answers, is located at the notch of corresponding armature slot, the second stator permanent magnet along the circumferential direction magnetizes；Two neighboring armature slot corresponding
The magnetizing direction of two stator permanent magnets is opposite；Rotor core adjacent stator structure annular surface, it is along the circumferential direction alternate to set
It is equipped with multiple rotor tooths and rotor slot, can increase speed adjustable range, to realize the function of directly driving load, break away from tradition
Intermediate gearing in transmission system eliminates various troubles that intermediate gearing is brought, in addition so that with same armature tooth
In air gap of corresponding two the second stator permanent magnets of two adjacent armature slots between stator structure and rotor structure, formed
The magnetic field for being directed radially towards center of circle direction and be radially away from the magnetic field in center of circle direction, first stator permanent magnet that is added to excitation
Be circumferentially formed thereon alternately variation be directed radially towards center of circle direction magnetic field and radially backwards center of circle direction magnetic field
On, to adjust the magnetic field intensity in air gap, so as to adjust the torque density of magneto, to meet different applied fields
It closes.
Description of the drawings
Fig. 1 is that a kind of magneto that the utility model embodiment provides is illustrated along the cross-section structure perpendicular to axial direction
Figure；
Fig. 2 is the permanent magnetic field that a kind of regional area permanent magnet for magneto that the utility model embodiment provides generates
Distribution schematic diagram；
Fig. 3 is that a kind of regional area permanent magnet mode of magnetizing for magneto that the utility model embodiment provides is illustrated
Figure；
Fig. 4 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is illustrated
Figure；
Fig. 5 is the permanent-magnet magnetic that the regional area permanent magnet for another magneto that the utility model embodiment provides generates
The distribution schematic diagram of field；
Fig. 6 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is illustrated
Figure；
Fig. 7 is that another magneto that the utility model embodiment provides shows along the cross-section structure perpendicular to axial direction
It is intended to；
Fig. 8 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is illustrated
Figure；
Fig. 9 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is illustrated
Figure；
Figure 10 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is shown
It is intended to；
Figure 11 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is shown
It is intended to；
Figure 12 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is shown
It is intended to；
Figure 13 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is shown
It is intended to；
Figure 14 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is shown
It is intended to；
Figure 15 is the anti-electronic of the magneto to magnetize under mode in different permanent magnets that the utility model embodiment provides
The virtual value of gesture and the column diagram of total harmonic distortion.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, it illustrates only for ease of description, in attached drawing and the relevant part of the utility model rather than entire infrastructure.
The utility model embodiment provides a kind of magneto.Fig. 1 is a kind of permanent magnetism that the utility model embodiment provides
Motor is along the cross-sectional view perpendicular to axial direction.The magneto can be applicable to wind-power electricity generation, industrial robot, essence
The occasions such as close lathe, oil pumping in oil fields system and Ship Propeling.As shown in Figure 1, the magneto includes circular stator structure 100
With circular rotor structure.
Wherein, stator structure 100 and rotor structure are donut, and stator structure 100 includes annular stator core
110, multiple armature winding 120, multiple first stator permanent magnets 130 and multiple second stator permanent magnets 140；Stator core 110
It is peripherally disposed to have multiple stator modulation teeth 111, armature tooth 112 and armature slot in the annular surface for closing on rotor structure
113, multiple stator modulation teeth 111, armature tooth 112 and armature slot 113, according to stator modulation tooth 111, an armature slot 113, one
The sequence cycle arrangement of armature tooth 112 and another armature slot 113, armature winding 120 wind stator tune according to default winding method
Tooth 111 and armature tooth 112 processed are located in armature slot 113；First stator permanent magnet 130 is corresponded with armature tooth 112, is located at
Armature tooth 112 closes on one end of rotor structure, and the first stator permanent magnet 130 radially magnetizes；Second stator permanent magnet 140 and electricity
Pivot slot 113 corresponds, and is located at the notch of corresponding armature slot 113, and the second stator permanent magnet 140 along the circumferential direction magnetizes；Phase
The magnetizing direction of adjacent two 113 corresponding second stator permanent magnets 140 of armature slot is opposite；Rotor structure includes circular ring shape rotor iron
Core 210；Rotor core 210 adjacent stator structure 100 annular surface, it is along the circumferential direction alternate to be provided with multiple rotor tooths
211 and rotor slot 212.
Wherein, the first stator permanent magnet 130 can be directed radially towards the direction of rotor structure and magnetize, can also be along diameter
It magnetizes to the direction backwards to rotor structure.Second stator permanent magnet 140 of half quantity magnetizes along clockwise direction, another half
Second stator permanent magnet 140 of amount magnetizes in the counterclockwise direction.Two armature slots 113 adjacent with same armature tooth 112 are corresponding
Two the second stator permanent magnets 140 magnetizing direction can be backwards to 112 corresponding first stator permanent magnet 130 of armature tooth,
Can also be to be directed toward 112 corresponding first stator permanent magnet 130 of armature tooth.Fig. 1 illustratively draws all first stator permanent magnets
Body 130 radially magnetizes backwards to the direction of rotor structure, and adjacent with same armature tooth 112 two armature slots 113 are corresponding
The magnetizing direction of two the second stator permanent magnets 140 can be the feelings backwards to 112 corresponding first stator permanent magnet 130 of armature tooth
Condition.What the one end of armature tooth 112 and stator modulation tooth 111 far from rotor structure was connected together, which is equivalent to stator yoke
Portion.The one end of rotor tooth 211 far from stator structure 100 is connected together, which is equivalent to rotor yoke.Stator core
110 include the first silicon steel sheet of multiple high magnetic properties, and OO ＇ (are parallel to motor shaft extension to multiple first silicon steel sheets in an axial direction
Direction, motor shaft is located at the circle ring center position of circular stator structure and circular rotor structure) laminate arrangement.Rotor iron
Core 210 includes the second silicon steel sheet of multiple high magnetic properties, and OO ＇ laminate arrangement to multiple second silicon steel sheets in an axial direction.Optionally,
One stator permanent magnet 130 can be rubidium iron B permanent magnetic material.Optionally, the second stator permanent magnet 140 can be rubidium iron boron permanent magnetism
Material and/or ferrite.Optionally, the default winding method of armature winding 120 includes centralization or distribution.Optionally, ring
Shape stator structure 100 is located on the outside of annular rotor structure, alternatively, annular stator structure 100 is located on the inside of annular rotor structure.Figure
1 illustratively draws the case where circular stator structure 100 is located on the outside of circular rotor structure.Optionally, the magneto
It can be three phase electric machine.The length of second stator permanent magnet 140 radially can with the length of the first stator permanent magnet 130 radially
With unequal；Corresponding two the second stator permanent magnets 140 of two armature slots 113 adjacent with same armature tooth 112, with armature
112 corresponding first stator permanent magnet 130 of tooth is at least partly opposite.Stator modulates the length of tooth 111 radially and is more than armature tooth
112 length radially.
It should be noted that the number of stator modulation tooth 111, armature tooth 112 and the first stator permanent magnet 130 is equal,
For Z1, the number Zs=2*Z1 of armature slot 113, the number of the second stator permanent magnet 140 is equal with the number of armature slot 113.Fig. 2
The distribution signal for the permanent magnetic field that a kind of regional area permanent magnet of the magneto provided for the utility model embodiment generates
The distribution of figure, the permanent magnetic field that the permanent magnet in the other parts region of magneto generates is identical with this or similar.Such as Fig. 2 institutes
Show, the magnetic direction with the air gap in 130 face region of the first stator permanent magnet is to be modulated with stator radially backwards to center of circle direction
The magnetic direction of the air gap in 111 face region of tooth is to be directed radially towards center of circle direction.It follows that in stator structure 100 and turning
In air gap between minor structure, there is the first stator permanent magnet 130 to inspire and be circumferentially formed thereon radially referring to for alternately variation
To the magnetic field in center of circle direction and radially backwards to the magnetic field in center of circle direction, the magnetic field for being directed radially towards center of circle direction by adjacent one
The magnetic field in center of circle direction is radially away from as a number of pole-pairs with one.If the number of the first stator permanent magnet 130 is Z1, the
The number of pole-pairs of the permanent magnetism fundamental wave magnetic field of one stator permanent magnet 130 excitation is Z1.First stator permanent magnet 130 and adjacent stator tune
Tooth 111 processed constitutes one to pole, and the number of pole-pairs that all first stator permanent magnets 130 are constituted is Z1.The number of rotor tooth 211 is
Z2, then it is positive integer that the number of pole-pairs of armature winding 120, which is Pw=∣ Z1-Z2 ∣, Z1, Z2 and Pw,.Armature winding 120 injected or
The relationship of the frequency f of the sinusoidal ac of generation and the rotating speed Ω r of rotor structure is：60*f=Z2* Ω r.
It should be noted that with continued reference to Fig. 2, adjacent with same armature tooth 112 two armature slots 113 are two corresponding
In air gap of second stator permanent magnet 140 between stator structure and rotor structure, formation is directed radially towards center of circle direction
Magnetic field and radially backwards to center of circle direction magnetic field, first stator permanent magnet 130 that is added to excitation is circumferentially formed thereon friendship
For the magnetic field for being directed radially towards center of circle direction of variation and radially on the magnetic field in center of circle direction, magnetic in adjustment air gap is played
The effect of field, does not change the number of pole-pairs of the permanent magnetic field of the first stator permanent magnet 130 excitation, and the first stator permanent magnet 130 swashs
Number of the number of pole-pairs of the permanent magnetic field of hair still equal to the first stator permanent magnet 130.Illustratively, as shown in Fig. 2, determining with first
The second adjacent stator permanent magnet 140 of sub- permanent magnet 130, with the air gap in 130 face region of the first stator permanent magnet at, excitation
Magnetic direction be radially backwards to center of circle direction, at the air gap in 111 face region of stator modulation tooth, the magnetic direction of excitation
To be directed radially towards center of circle direction, therefore the magnetic direction and the first stator permanent magnet that the second stator permanent magnet 140 excites in air gap
The magnetic direction that body 130 excites in air gap corresponds to identical, therefore the magnetic field that is excited in air gap of the second stator permanent magnet 140 can be with
Enhance the magnetic field that the first stator permanent magnet 130 excites in air gap, so as to promote the torque of magneto.
It should be noted that rotor tooth 211 is made of the material of high magnetic property, therefore the magnetic conductance of rotor tooth 211 is larger, turns
The magnetic conductance of pilot trench 212 is smaller, therefore Z1 excites forever the first stator permanent magnet 130 of pole and the second stator permanent magnet 140 jointly
Magnetic fundamental wave magnetic field will be by the harmonic field of Z2 211 Tiao Cheng ∣ Z1-Z2 ∣ number of pole-pairs of rotor tooth.When Z2 is less than Z1, pass through electricity
The Pw of armature supply excitation in pivot winding 120 is to the fundamental wave magnetic field of pole, with the first stator permanent magnet 130 and the second stator permanent magnet
The Z1 that body 140 excites jointly modulates Hou ∣ Z1-Z2 ∣ to pole harmonic field to the permanent magnetism fundamental wave magnetic field of pole by Z2 rotor tooth 211
Interaction is realized and stablizes electromechanical energy conversion.When Z2 is more than Z1, excited by the armature supply in armature winding 120
Pw is to the fundamental wave magnetic field of pole, permanent magnetism of the Z1 excited jointly with the first stator permanent magnet 130 and the second stator permanent magnet 140 to pole
Fundamental wave magnetic field modulates Hou ∣ Z1-Z2 ∣ by Z2 rotor tooth 211 and interacts to pole harmonic field, meanwhile, in armature winding 120
Armature supply excitation Pw to the fundamental wave magnetic field of pole by Z2 211 Tiao Cheng ∣ ∣ Z1-Z2 ∣-Z2 ∣=Z1 number of pole-pairs of rotor tooth
Harmonic field, the permanent magnetism fundamental wave magnetic field that the first stator permanent magnet 130 of pole and the second stator permanent magnet 140 are excited jointly with Z1
Interaction is realized and stablizes electromechanical energy conversion.In realizing electromechanical energy conversion process, pass through the electricity in armature winding 120
The Pw of pivot electric current excitation excites the fundamental wave magnetic field of pole with the first stator permanent magnet 130 and the second stator permanent magnet 140 jointly
It is identical to the rotary speed of pole harmonic field that Z1 modulates Hou ∣ Z1-Z2 ∣ to the permanent magnetism fundamental wave magnetic field of pole by Z2 rotor tooth 211；
The Pw of armature supply excitation in armature winding 120 is to the fundamental wave magnetic field of pole by Z2 211 Tiao Cheng ∣ ∣ Z1-Z2 ∣-Z2 of rotor tooth
The harmonic field of ∣=Z1 numbers of pole-pairs, the first stator permanent magnet 130 to pole and the second excitation jointly of stator permanent magnet 140 with Z1
Permanent magnetism fundamental wave magnetic field rotary speed it is identical.The frequency f and rotor of sinusoidal ac that armature winding 120 is injected or generated
The relationship of the rotating speed Ω r of structure is：60*f=Z2* Ω r.It can be by increasing the number Z2 of the rotor tooth of setting and/or increasing just
The range of the frequency f of string alternating current, to increase the rotational speed regulation range of magneto, to realize the function of directly driving load,
The intermediate gearing in conventional drivetrain is broken away from, various troubles that intermediate gearing is brought are eliminated.When armature winding 120
When being passed through the alternating current of frequency f, the armature supply in armature winding 120 generates rotation fundamental wave magnetic fields of the Pw=∣ Z1-Z2 ∣ to pole,
The magnitude relationship of the rotating speed Ω w of the rotation fundamental wave magnetic field and the rotating speed Ω r of rotor structure is：Pw* Ω w=Z2* Ω r.Work as external force
When rotor structure being driven to be rotated with the speed of Ω r, armature winding 120 will send out the alternating current of frequency f.
The technical solution of the present embodiment by stator core in the annular surface for closing on rotor structure, it is peripherally disposed
There are multiple stator modulation teeth, armature tooth and armature slot, multiple stator modulation teeth, armature tooth and armature slot to be modulated according to a stator
The sequence cycle arrangement of tooth, an armature slot, an armature tooth and another armature slot, armature winding is according to default winding method, winding
Stator modulates tooth and armature tooth, is located in armature slot；First stator permanent magnet is corresponded with armature tooth, is closed on positioned at armature tooth
One end of rotor structure, the first stator permanent magnet radially magnetize；Second stator permanent magnet and armature slot correspond, and are located at pair
The notch for the armature slot answered, the second stator permanent magnet along the circumferential direction magnetize；Corresponding second stator of two neighboring armature slot is forever
The magnetizing direction of magnet is opposite；Rotor core adjacent stator structure annular surface, it is along the circumferential direction alternate be provided with it is multiple
Rotor tooth and rotor slot can increase the rotational speed regulation range of magneto, to realize the function of directly driving load, break away from biography
Intermediate gearing in transmission system of uniting eliminates various troubles that intermediate gearing is brought, in addition so that with same armature
In air gap of corresponding two the second stator permanent magnets of two adjacent armature slots of tooth between stator structure and rotor structure, shape
At the magnetic field for being directed radially towards center of circle direction and be radially away from the magnetic field in center of circle direction, first stator permanent magnet that is added to swashs
Hair is circumferentially formed thereon the magnetic field for being directed radially towards center of circle direction alternately changed and radially backwards to the magnetic in center of circle direction
On field, to adjust the magnetic field intensity in air gap, so as to adjust the torque density of magneto, to meet different applied fields
It closes.
Optionally, which is three phase electric machine, and the number Zs of armature slot 113 is 6 integral multiple, and there are N and k to make
It obtains * 360 ° of (N-1)+120 ° of * Pw/Zs=k*360 ° to set up, wherein N is positive integer, and k is integer, and N is less than or equal to Zs.Example
Property, as shown in Figure 1, the first stator permanent magnet 130 and rotor permanent magnet 220 all radially magnetize.Armature slot 113 and
The number of two stator permanent magnets 140 is 24, i.e. Zs=24, is 6 multiple.Stator modulates the number of tooth 111, armature tooth 112
Number, the number of pole-pairs that constitutes of the number of stator permanent magnet 130 and the first stator permanent magnet 130 be 12, i.e. Z1=Zs/
2.The number of pole-pairs that the number of rotor tooth 211, the number of rotor permanent magnet 220 and rotor permanent magnet 220 are constituted is 14, i.e. Z2=
14.The number of pole-pairs Pw of the relational expression that must satisfy according to Z1, Z2 and Pw, the composition of threephase armature winding is necessary for 2, i.e. Pw=2.
It is not difficult to find out, there are N=5, k=0, and * 360 ° of (N-1)+120 ° of * Pw/Zs=k*360 ° are set up, that is, illustrates that this motor can
Threephase armature winding is laid out according to armature winding number of pole-pairs Pw=2.
Optionally, on the basis of the above embodiments, with continued reference to Fig. 1, the length of the second stator permanent magnet 140 radially
With the equal length of the first stator permanent magnet 130 radially；Two armature slots 113 adjacent with same armature tooth 112 are corresponding
Two the second stator permanent magnets 140, first stator permanent magnet, 130 face corresponding with armature tooth 112, i.e. the second stator permanent magnet
140 axis is located on same circumference in the circumferential direction for axis and the first stator permanent magnet 130 in the circumferential direction.Second stator
The side that permanent magnet 140 closes on rotor structure with the first stator permanent magnet 130 along the circumferential direction can be concordant, so that the second stator
Permanent magnet 140 is close proximity to air gap, to enhance the magnetic field in air gap.Optionally, the length of the first stator permanent magnet 130 radially
With the length of armature tooth 112 radially and, be equal to stator modulation tooth 111 length radially.
Optionally, on the basis of the above embodiments, with continued reference to Fig. 1, the magnetizing direction of the first stator permanent magnet 130 is
Radially backwards to rotor structure, corresponding two the second stator permanent magnets of adjacent with same armature tooth 112 two armature slots 113
140 magnetizing direction is opposite, can be backwards to 112 corresponding first stator permanent magnet 130 of armature tooth.
Optionally, on the basis of the above embodiments, as shown in figure 3, Fig. 3 is one kind that the utility model embodiment provides
The regional area permanent magnet of magneto magnetizes schematic diagram, the side of magnetizing of the permanent magnet in the other parts region of magneto
Formula is identical with this or similar, and the magnetizing direction of the first stator permanent magnet 130 is to be directed radially towards rotor structure, with same armature tooth
The magnetizing direction of 112 adjacent two armature slots, 113 corresponding two the second stator permanent magnets 140 is opposite, can be to be directed toward electricity
112 corresponding first stator permanent magnet 130 of armature tooth, the second stator permanent magnet 140 is between stator structure 100 and rotor structure
In air gap, the magnetic field for being directed radially towards center of circle direction of formation and radially backwards to the magnetic field in center of circle direction, it is first fixed to be added to
The magnetic field for being directed radially towards center of circle direction for alternately variation that sub- permanent magnet 130 excited be circumferentially formed thereon and radially backwards
On the magnetic field in center of circle direction, play a part of enhancing magnetic field in air gap, so as to promote the torque density of magneto.
Fig. 4 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is illustrated
Figure, the mode of magnetizing of the permanent magnet in the other parts region of magneto are identical with this or similar, as shown in figure 4, the first stator
The magnetizing direction of permanent magnet 130 is radially backwards to rotor structure, adjacent with same armature tooth two armature slots corresponding two
The magnetizing direction of a second stator permanent magnet 140 is opposite, can be to be directed toward corresponding first stator permanent magnet of armature tooth 130.
It should be noted that Fig. 5 is the regional area stator for another magneto that the utility model embodiment provides
The distribution schematic diagram for the permanent magnetic field that permanent magnet generates, the permanent magnetic field of the permanent magnet generation in the other parts region of magneto
Distribution be identical with this or similar, as shown in figure 5, the magnetizing direction when permanent magnet is：The side of magnetizing of first stator permanent magnet 130
To for radially backwards to rotor structure, corresponding two the second stators of adjacent with same armature tooth 112 two armature slots 113 are forever
The magnetizing direction of magnet 140, when to be directed toward 112 corresponding first stator permanent magnet 130 of armature tooth, with 112 phase of same armature tooth
In adjacent two armature slots, 113 corresponding two air gaps of second stator permanent magnet 140 between stator structure and rotor structure
The magnetic direction of excitation, it is corresponding with the magnetic direction that the first stator permanent magnet 130 excites in air gap on the contrary, therefore the second stator forever
What magnet 140 excited is circumferentially formed thereon the magnetic field for being directed radially towards center of circle direction of alternately variation and is radially away from the center of circle
The magnetic field in direction, first stator permanent magnet 130 that is added to excitation be circumferentially formed thereon alternately variation be directed radially towards circle
The magnetic field in heart direction and radially backwards to center of circle direction magnetic field on, the magnetic field intensity in air gap can be weakened, be equivalent to part magnetic
Short out road, to reduce the torque density of magneto.
Fig. 6 is that the regional area permanent magnet mode of magnetizing for another magneto that the utility model embodiment provides is illustrated
Figure, the mode of magnetizing of the permanent magnet in the other parts region of magneto are identical with this or similar, as shown in fig. 6, the first stator
The magnetizing direction of permanent magnet 130 is to be directed radially towards rotor structure, adjacent with same armature tooth two armature slots corresponding two
The magnetizing direction of a second stator permanent magnet 140 is backwards to corresponding first stator permanent magnet of armature tooth 130.Wherein, second is fixed
The magnetic direction pair that the magnetic direction and the first stator permanent magnet 130 that sub- permanent magnet 140 excites in air gap excite in air gap
Answer on the contrary, therefore two the second stator permanent magnets 140 answering of two armature slots pair 113 adjacent with same armature tooth 112 in stator
In air gap between structure and rotor structure, the magnetic field for being directed radially towards center of circle direction of formation and it is radially away from center of circle direction
Magnetic field, first stator permanent magnet 130 that is added to excitation be circumferentially formed thereon alternately variation be directed radially towards center of circle side
To magnetic field and radially backwards to center of circle direction magnetic field on, the magnetic field intensity in air gap can be weakened, to reduce magneto
Torque density.
The utility model embodiment provides another magneto.Fig. 7 is another that the utility model embodiment provides
Magneto is along the cross-sectional view perpendicular to axial direction.As shown in fig. 7, on the basis of the above embodiments, this is forever
The rotor structure of magneto further includes multiple rotor permanent magnets 220, and rotor permanent magnet 220 is corresponded with rotor slot, and rotor is forever
Magnet 220 is embedded in corresponding rotor slot, and rotor permanent magnet 220 radially magnetizes.
Wherein, rotor permanent magnet 220 can be rubidium iron B permanent magnetic material.The magnetizing direction phase of all rotor permanent magnets 220
Together, the direction that can be directed radially towards stator structure 100 is magnetized, can also be radially backwards to the direction of stator structure 100
It magnetizes.Fig. 7 illustratively draws all rotor permanent magnets 220 and is directed radially towards the case where direction of stator structure 100 is magnetized.
The number of rotor permanent magnet 220 is equal to the number of rotor tooth 211, is Z2.Gas between stator structure 100 and rotor structure
In gap, have rotor permanent magnet 220 inspire along the circumferential direction, formed alternately variation be directed radially towards center of circle direction magnetic field and
It is radially away from the magnetic field in center of circle direction, the magnetic field and one that adjacent one is directed radially towards center of circle direction is radially away from the center of circle
The magnetic field in direction is as a number of pole-pairs.Every piece of rotor permanent magnet 220 and adjacent rotor tooth 211 constitute a pair of of pole, Suo Youzhuan
The number of pole-pairs that sub- permanent magnet 220 is constituted is Z2.Stator modulation tooth 111 is made of the material of high magnetic property, therefore stator modulates tooth
111 magnetic conductance is larger, and the magnetic conductance of armature slot 113 and armature tooth 112 is smaller, therefore Z2 excites forever the rotor permanent magnet 220 of pole
Magnetic fundamental wave magnetic field will be modulated the harmonic field of 111 Tiao Cheng ∣ Z2-Z1 ∣ numbers of pole-pairs of tooth by Z1 stator.
Optionally, the magnetizing direction of the first stator permanent magnet 130 is identical as the magnetizing direction of rotor permanent magnet 220, can make
The magnetic line of force that rotor permanent magnet 220 generates reaches stator structure 100 by air gap and is coupled with armature winding 120, to enhance rotor
The interaction in the magnetic field that the permanent magnetic field that permanent magnet 220 excites is generated with the armature supply in armature winding 120, to increase forever
The torque density of magneto.Optionally, the number of pole-pairs Pw=∣ Z1-Z2 ∣ of armature winding 120, wherein Z1 is the first stator permanent magnet
The number of body 130, Z2 are the number of rotor permanent magnet 220；The frequency of sinusoidal ac that armature winding 120 is injected or generated
The relationship of the rotating speed Ω r of f and rotor structure is：60*f=Z2* Ω r.
It should be noted that the magneto is worked based on " bidirectional magnetic field mudulation effect " principle.So-called " two-way magnetic
Field mudulation effect " is exactly the first stator permanent magnet of magneto and the permanent magnetism fundamental wave magnetic field that the second stator permanent magnet excites jointly
It is modulated by rotor tooth, to be modulated into a large amount of air-gap field humorous by stator modulation tooth for the permanent magnetism fundamental wave magnetic field of rotor permanent magnet excitation
Then wave is stablized electromechanical energy using the realization that intercouples between harmonic field and is converted.Stator modulates tooth 111, armature tooth 112
It is equal with the number of the first stator permanent magnet 130, it is Z1, the number Zs=2*Z1 of armature slot 113, the second stator permanent magnet
140 number is 2*Z1.The number of rotor permanent magnet 220 and rotor tooth 211 is Z2.When the magnetic field harmonics to play a major role
For, the number of pole-pairs for the permanent magnetism fundamental wave magnetic field that rotor permanent magnet 220 excites is Z2, the first stator permanent magnet 130 and the second stator
The number of the number of pole-pairs Z1 for the permanent magnetism fundamental wave magnetic field that permanent magnet 140 excites jointly, rotor tooth 211 are Z2, and stator modulates tooth 111
Number is Z1.The permanent magnetism fundamental wave magnetic field that Z2 excites the rotor permanent magnet 220 of pole modulates 111 Tiao Cheng ∣ Z2- of tooth by Z1 stator
Harmonic fields of the Z1 ∣ to pole；The permanent magnetism that Z1 excites the first stator permanent magnet 130 of pole and the second stator permanent magnet 140 jointly
Fundamental wave magnetic field by Z2 211 Tiao Cheng ∣ Z1-Z2 ∣ of rotor tooth to the harmonic field of pole, then number of pole-pairs Pw=∣ of armature winding 120
Z2-Z1 ∣=∣ Z1-Z2 ∣, then armature winding 120 injected or generated the frequency f of sinusoidal ac and the rotating speed Ω r of rotor structure
Relationship be：60*f=Z2* Ω r.When armature winding 120 is passed through the alternating current of frequency f, the armature electricity in armature winding 120
Sheng ∣ Z2-Z1 ∣ miscarry to the rotation fundamental wave magnetic field of pole, the rotating speed Ω w of the rotation fundamental wave magnetic field and the rotating speed Ω r's of rotor structure
Magnitude relationship is：Pw* Ω w=Z2* Ω r.When external force drives rotor structure to be rotated with the speed of Ω r, armature winding 120 will be sent out
Go out the alternating current of frequency f.
Wherein, when Z2 is more than Z1, the Pw that is excited by armature supply in armature winding 120 to the fundamental wave magnetic field of pole,
The Z1 excited jointly with the first stator permanent magnet 130 and the second stator permanent magnet 140 is turned the permanent magnetism fundamental wave magnetic field of pole by Z2
Sub- tooth 211 modulates Hou ∣ Z1-Z2 ∣ and interacts to pole harmonic field；In armature winding 120 armature supply excitation Pw pairs
The fundamental wave magnetic field of pole, the Z2 excited with rotor permanent magnet 220 modulate tooth 111 by Z1 stator to the permanent magnetism fundamental wave magnetic field of pole and modulate
Hou ∣ Z2-Z1 ∣ interact to pole harmonic field；Fundamental wave magnetic fields of the Pw of armature supply excitation in armature winding 120 to pole
Harmonic fields of the 111 modulated Z2 of tooth to pole, permanent magnetism of the Z2 excited with rotor permanent magnet 220 to pole are modulated by Z1 stator
Fundamental wave magnetic field interacts, and realizes and stablizes electromechanical energy conversion.
Wherein, when Z2 is less than Z1, the Pw that is excited by armature supply in armature winding 120 to the fundamental wave magnetic field of pole,
The Z1 excited jointly with the first stator permanent magnet 130 and the second stator permanent magnet 140 is turned the permanent magnetism fundamental wave magnetic field of pole by Z2
Sub- tooth 211 modulates Hou ∣ Z1-Z2 ∣ and interacts to pole harmonic field；In armature winding 120 armature supply excitation Pw pairs
The fundamental wave magnetic field of pole, the Z2 excited with rotor permanent magnet 220 modulate tooth 111 by Z1 stator to the permanent magnetism fundamental wave magnetic field of pole and modulate
Hou ∣ Z2-Z1 ∣ interact to pole harmonic field；Fundamental wave magnetic fields of the Pw of armature supply excitation in armature winding 120 to pole
By Z2 211 modulated Z1 of rotor tooth to the harmonic field of pole, with the first stator permanent magnet 130 and the second stator permanent magnet
140 Z1 excited jointly interact to the permanent magnetism fundamental wave magnetic field of pole, realize and stablize electromechanical energy conversion.
It should be noted that the number of pole-pairs in the above-mentioned arbitrary two kinds of magnetic fields that can be interacted is identical, and the rotation in magnetic field
Speed is identical.The Pw excited by armature supply in armature winding 120 is to the fundamental wave magnetic field of pole, with the first stator permanent magnet
130 and second the Z1 that excites jointly of stator permanent magnet 140 Hou ∣ are modulated by Z2 rotor tooth 211 to the permanent magnetism fundamental wave magnetic field of pole
Z1-Z2 ∣ are identical to the rotary speed of pole harmonic field；Fundamental wave magnetic of the Pw of armature supply excitation in armature winding 120 to pole
, the Z2 excited with rotor permanent magnet 220 modulates tooth 111 by Z1 stator to the permanent magnetism fundamental wave magnetic field of pole and modulates Hou ∣ Z2-Z1
∣ is identical to the rotary speed of pole harmonic field；The Pw of armature supply excitation in armature winding 120 is to the fundamental wave magnetic field of pole by Z1
A stator modulation 111 modulated Z2 of tooth is to the harmonic field of pole, permanent magnetism fundamental waves of the Z2 excited with rotor permanent magnet 220 to pole
The rotary speed in magnetic field is identical；The Pw of armature supply excitation in armature winding 120 is to the fundamental wave magnetic field of pole by Z2 rotor tooth
211 modulated Z1 excite the harmonic field of pole with the first stator permanent magnet 130 and the second stator permanent magnet 140 jointly
Z1 is identical to the rotary speed of the permanent magnetism fundamental wave magnetic field of pole.
Optionally, on the basis of the above embodiments, with continued reference to Fig. 7, the magnetizing direction of the first stator permanent magnet 130 is
Radially backwards to rotor structure, the magnetizing direction of rotor permanent magnet 220 is to be directed radially towards stator structure 100, with same armature
The magnetizing direction of adjacent two armature slots, 113 corresponding two the second stator permanent magnets 140 of tooth 112 is backwards to armature tooth 112
Corresponding first stator permanent magnet 130.
Optionally, on the basis of the above embodiments, as shown in figure 8, Fig. 8 be the utility model embodiment provide it is another
The regional area permanent magnet of kind of magneto magnetizes schematic diagram, and the permanent magnet in the other parts region of magneto magnetizes
Mode is identical with this or similar, and the magnetizing direction of the first stator permanent magnet 130 is to be directed radially towards rotor structure；Rotor permanent magnet
220 magnetizing direction is radially backwards to stator structure 100, adjacent with same armature tooth 112 two armature slots corresponding two
The magnetizing direction of a second stator permanent magnet 140 is backwards to 112 corresponding first stator permanent magnet 130 of armature tooth.
Optionally, on the basis of the above embodiments, as shown in figure 9, Fig. 9 be the utility model embodiment provide it is another
The regional area permanent magnet of kind of magneto magnetizes schematic diagram, and the permanent magnet in the other parts region of magneto magnetizes
Mode is identical with this or similar, and the magnetizing direction of the first stator permanent magnet 130 is to be directed radially towards rotor structure；Rotor permanent magnet
220 magnetizing direction is to be directed radially towards stator structure 100, and adjacent with same armature tooth 112 two armature slots 113 are corresponding
The magnetizing direction of two the second stator permanent magnets 140 is backwards to 112 corresponding first stator permanent magnet 130 of armature tooth.
Optionally, on the basis of the above embodiments, as shown in Figure 10, Figure 10 be the utility model embodiment provide and
A kind of regional area permanent magnet of magneto magnetizes schematic diagram, and the permanent magnet in the other parts region of magneto fills
Magnetic mode is identical with this or similar, and the magnetizing direction of the first stator permanent magnet 130 is radially backwards to rotor structure；Rotor permanent magnet
The magnetizing direction of body 220 is radially backwards to stator structure 100, and adjacent with same armature tooth 112 two armature slots 113 are corresponding
The magnetizing directions of two the second stator permanent magnets 140 be backwards to 112 corresponding first stator permanent magnet 130 of armature tooth.
Optionally, on the basis of the above embodiments, as shown in figure 11, Figure 11 be the utility model embodiment provide and
A kind of regional area permanent magnet of magneto magnetizes schematic diagram, and the permanent magnet in the other parts region of magneto fills
Magnetic mode is identical with this or similar, and the magnetizing direction of the first stator permanent magnet 130 is to be directed radially towards rotor structure；Rotor permanent magnet
The magnetizing direction of body 220 is radially backwards to stator structure 100, and adjacent with same armature tooth 112 two armature slots 113 are corresponding
Two the second stator permanent magnets 140 magnetizing direction be directed toward 112 corresponding first stator permanent magnet 130 of armature tooth.
Optionally, on the basis of the above embodiments, as shown in figure 12, Figure 12 be the utility model embodiment provide and
A kind of regional area permanent magnet of magneto magnetizes schematic diagram, and the permanent magnet in the other parts region of magneto fills
Magnetic mode is identical with this or similar, and the magnetizing direction of the first stator permanent magnet 130 is radially backwards to rotor structure；Rotor permanent magnet
The magnetizing direction of body 220 is to be directed radially towards stator structure 100, and adjacent with same armature tooth 112 two armature slots 113 are corresponding
Two the second stator permanent magnets 140 magnetizing direction be directed toward 112 corresponding first stator permanent magnet 130 of armature tooth.
Optionally, on the basis of the above embodiments, as shown in figure 13, Figure 13 be the utility model embodiment provide and
A kind of regional area permanent magnet of magneto magnetizes schematic diagram, and the permanent magnet in the other parts region of magneto fills
Magnetic mode is identical with this or similar, and the magnetizing direction of the first stator permanent magnet 130 is radially backwards to rotor structure；Rotor permanent magnet
The magnetizing direction of body 220 is radially backwards to stator structure, and adjacent with same armature tooth 112 two armature slots are two corresponding
The magnetizing direction of second stator permanent magnet 140 is to be directed toward 112 corresponding first stator permanent magnet 130 of armature tooth.
Optionally, on the basis of the above embodiments, as shown in figure 14, Figure 14 be the utility model embodiment provide one
The regional area permanent magnet of kind of magneto magnetizes the schematic diagram of mode, and the permanent magnet in the other parts region of magneto fills
Magnetic mode is identical with this or similar, and the magnetizing direction of the first stator permanent magnet 130 is to be directed radially towards rotor structure；Rotor permanent magnet
The magnetizing direction of body 220 is to be directed radially towards stator structure, and adjacent with same armature tooth 112 two armature slots are two corresponding
The magnetizing direction of second stator permanent magnet 140 is to be directed toward 112 corresponding first stator permanent magnet 130 of armature tooth.
Figure 15 is the anti-electronic of the magneto to magnetize under mode in different permanent magnets that the utility model embodiment provides
The virtual value of gesture and the column diagram of total harmonic distortion.Wherein, the terminal voltage of counter electromotive force, that is, armature winding of magneto, a, b,
C, for corresponding diagram 7 to the mode that magnetizes of Figure 14, the first longitudinal axis RMS indicates the virtual value of counter electromotive force respectively by d, e, f, g and h, second
Longitudinal axis THD indicates total harmonic distortion (total harmonic distortion), from Figure 15, it can be seen that the corresponding Fig. 7's of a
The mode that magnetizes of the mode that magnetizes and the corresponding Figure 11 of e, the virtual value of the counter electromotive force of magneto is larger, total harmonic distortion compared with
It is small, therefore use the better performances of the magneto of the mode that magnetizes of Fig. 7 and Figure 11.
Illustratively, with continued reference to Fig. 7, by taking the magnetic field harmonics to play a major role as an example, the rotor permanent magnet 220 of 14 pairs of pole
The permanent magnetism fundamental wave magnetic field of excitation is modulated the harmonic field that tooth 111 is modulated into 2 pairs of pole by 12 stators；At the same time, 12 pairs of pole
The permanent magnetism fundamental wave magnetic field that first stator permanent magnet 130 and the second stator permanent magnet 140 excite jointly is also adjusted by 14 rotor tooths 211
The harmonic field of 2 pairs of pole is made.When being passed through the alternating current of certain frequency to armature winding 120,2 pairs of poles of armature supply generation
Fundamental wave magnetic field realize that stable torque is defeated with the modulated 2 pairs of pole harmonic field interaction of stator and rotor permanent magnetic field simultaneously
Go out, motor is operated in electric motor state at this time.When Injection Current frequency is 28Hz, the rotating excitation field rotating speed of armature supply generation
For 60*28/2=840r/min, motor rotor construction will be rotated with the speed of 840*2/14=120r/min.When motor is operated in
Generator Status modulates tooth 111 and rotor tooth that is, when external force drives rotor structure to be rotated with the speed of 120r/min by stator
The 211 2 pairs of pole harmonic fields modulated will also be rotated with certain speed, and the harmonic field of the movement is coupled with armature winding, from
And generate the induced voltage of 28Hz at armature winding both ends.
The implementation case is only intended to clearly illustrate done citing, and does not limit the embodiments.For institute
For the technical staff in category field, according to formula | Z1-Z2 |=Pw, Z1=Zs/2, adjust Zs, Z2 can by the design of electrical motor at
The different inner-rotor type of stator and rotor permanent magnet pole logarithm and outer-rotor type magneto.According to winding connection or rotor
The different of permanent magnet magnetizing direction can derive many kinds of motors again.It is worth noting that * 360 ° of * Pw/Zs of formula (N-1)
=k*360 °+120 ° be in order to ensure the condition that the utility model motor can lay out three-phase windings and meet, for this field
Technical staff for, do not change the electric machine structure that the utility model is proposed, it is easy the utility model to be proposed
Motor turn to multi-phase permanent motor, such case ought to be protected by this patent.In addition, on the basis of the above description also
It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And by
Among the protection domain that this obvious changes or variations extended out is created still in the utility model.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious variation is readjusted, be combined with each other and is substituted without departing from the scope of protection of the utility model.Therefore, although passing through
Above example is described in further detail the utility model, but the utility model is not limited only to the above implementation
Example can also include other more equivalent embodiments in the case where not departing from the utility model design, and the utility model
Range is determined by scope of the appended claims.
Claims (10)
1. a kind of magneto, which is characterized in that including：
Circular stator structure and circular rotor structure；
The stator structure and the rotor structure are donut,
The stator structure includes annular stator core, multiple armature winding, multiple first stator permanent magnets and multiple second
Stator permanent magnet；
The stator core in the annular surface for closing on the rotor structure, it is peripherally disposed have multiple stators modulation teeth,
Armature tooth and armature slot,
The multiple stator modulation tooth, armature tooth and armature slot, according to a stator modulation tooth, an armature slot, an institute
The sequence cycle arrangement of armature tooth and another armature slot is stated,
The armature winding winds the stator modulation tooth and the armature tooth, is located at the armature according to default winding method
In slot；
First stator permanent magnet is corresponded with the armature tooth, closes on the one of the rotor structure positioned at the armature tooth
End, first stator permanent magnet radially magnetize；
Second stator permanent magnet and the armature slot correspond, and are located at the notch of the corresponding armature slot, and described the
Two stator permanent magnets along the circumferential direction magnetize；
The magnetizing direction of corresponding second stator permanent magnet of two neighboring armature slot is opposite；
The rotor structure includes circular ring shape rotor core；
The rotor core in the annular surface for closing on the stator structure, it is along the circumferential direction alternate be provided with multiple rotor tooths and
Rotor slot.
2. magneto according to claim 1, which is characterized in that the rotor structure further includes multiple rotor permanent magnets
Body,
The rotor permanent magnet is corresponded with the rotor slot, and the rotor permanent magnet is embedded in corresponding rotor slot, described
Rotor permanent magnet radially magnetizes.
3. magneto according to claim 2, which is characterized in that the magnetizing direction of first stator permanent magnet and institute
The magnetizing direction for stating rotor permanent magnet is identical.
4. magneto according to claim 2, which is characterized in that two armature slots adjacent with same armature tooth are corresponding
Two the second stator permanent magnets, the first stator permanent magnet face corresponding with the armature tooth.
5. magneto according to claim 4, which is characterized in that the magnetizing direction of first stator permanent magnet is edge
The radial rotor structure backwards, the magnetizing direction of the rotor permanent magnet are to be directed radially towards the stator structure；With it is same
The magnetizing direction of corresponding two the second stator permanent magnets of two adjacent armature slots of armature tooth is to be corresponded to backwards to the armature tooth
The first stator permanent magnet；
Alternatively, the magnetizing direction of first stator permanent magnet is to be directed radially towards the rotor structure；The rotor permanent magnet
Magnetizing direction be radially backwards to the stator structure, adjacent with same armature tooth two armature slots are two second corresponding
The magnetizing direction of stator permanent magnet is to be directed toward corresponding first stator permanent magnet of the armature tooth.
6. magneto according to claim 2, which is characterized in that the number of pole-pairs Pw=∣ Z1-Z2 ∣ of the armature winding,
Wherein, Z1 is the number of first stator permanent magnet, and Z2 is the number of the rotor permanent magnet；The armature winding is injected
Or the frequency f and the relationship of the rotating speed Ω r of the rotor structure of the sinusoidal ac generated are：60*f=Z2* Ω r.
7. magneto according to claim 1, which is characterized in that the annular stator structure is located at the annular rotor
On the outside of structure, alternatively, the annular stator structure is located on the inside of the annular rotor structure.
8. magneto according to claim 2, which is characterized in that the magneto is three phase electric machine, the armature slot
Number Zs be 6 integral multiple, and there are N and k to make：
(N-1) * 360 ° of+120 ° of * Pw/Zs=k*360 °
It sets up, wherein N is positive integer, and k is integer, and N is less than or equal to Zs.
9. magneto according to claim 1, which is characterized in that the stator core includes multiple high magnetic properties
First silicon steel sheet, multiple first silicon steel sheets laminate arrangement in an axial direction；The rotor core includes multiple high magnetic properties
Second silicon steel sheet, multiple second silicon steel sheets laminate arrangement in an axial direction.
10. magneto according to claim 2, which is characterized in that the rotor permanent magnet and first stator are forever
Magnet is rubidium iron B permanent magnetic material；Second stator permanent magnet includes following at least one materials：Rubidium iron B permanent magnetic material
And ferrite；The default winding method of the armature winding includes centralization or distribution.
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| CN201820044094.6U CN207977873U (en) | 2018-01-11 | 2018-01-11 | A kind of magneto |
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| CN201820044094.6U CN207977873U (en) | 2018-01-11 | 2018-01-11 | A kind of magneto |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092480A (en) * | 2018-01-11 | 2018-05-29 | 南方科技大学 | A kind of magneto |
| CN110061602A (en) * | 2018-12-26 | 2019-07-26 | 南方科技大学 | Rotor structure and permanent magnet excitation motor |
| CN111786527A (en) * | 2020-06-28 | 2020-10-16 | 南京师范大学 | Excitation compensation type hybrid magnetic source magnetic field modulation motor |
-
2018
- 2018-01-11 CN CN201820044094.6U patent/CN207977873U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092480A (en) * | 2018-01-11 | 2018-05-29 | 南方科技大学 | A kind of magneto |
| CN108092480B (en) * | 2018-01-11 | 2024-04-23 | 南方科技大学 | Permanent magnet motor |
| CN110061602A (en) * | 2018-12-26 | 2019-07-26 | 南方科技大学 | Rotor structure and permanent magnet excitation motor |
| CN110061602B (en) * | 2018-12-26 | 2020-07-24 | 南方科技大学 | Rotor structure and permanent magnet excitation motor |
| CN111786527A (en) * | 2020-06-28 | 2020-10-16 | 南京师范大学 | Excitation compensation type hybrid magnetic source magnetic field modulation motor |
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