CN106685184B - Unilateral adjustable magnetic profile shaft is to integrated form electric stepless gear - Google Patents
Unilateral adjustable magnetic profile shaft is to integrated form electric stepless gear Download PDFInfo
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- CN106685184B CN106685184B CN201710042232.7A CN201710042232A CN106685184B CN 106685184 B CN106685184 B CN 106685184B CN 201710042232 A CN201710042232 A CN 201710042232A CN 106685184 B CN106685184 B CN 106685184B
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- 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
Abstract
Unilateral adjustable magnetic profile shaft belongs to field of hybrid electric vehicles to integrated form electric stepless gear, and the present invention is that there are complicated, volume is larger, integrated level is low for the composite structure motor that solves the problems, such as in existing hybrid vehicle.The present invention program：Including casing, two double winding stators, p-m rotor, modulation rotor, modulation rotor output shaft and p-m rotor output shaft；P-m rotor is located between double winding stator and modulation rotor, and there are axial air-gap L1 between p-m rotor and double winding stator；There are axial air-gap L2 between p-m rotor and modulation rotor；There are two independent shafts for speed changer tool, and the torque rotary speed of two axis is completely independent, and double winding stator forms ps1The rotating armature magnetic field of number of pole-pairs, ps2The rotating armature magnetic field of number of pole-pairs；Meet ps1=| kpPM+jpm| and ps2=kpPM。
Description
Technical field
The invention belongs to field of hybrid electric vehicles.
Background technology
Hybrid vehicle is the new-energy automobile of current most development potentiality and market value.Due to hybrid vehicle
It can be good at combining engine technology and electric drive technology, therefore hybrid vehicle is in fuel economy and energy-saving and emission-reduction side
Face has very big advantage.
It include mainly two kinds in Technology of Hybrid Electric Vehicle, one is using mechanical planetary gear as the mechanical hybrid power of core
System (such as Prius systems), one is using composite structure motor as the pure electric hybrid power system of core.Planetary gear is
A kind of mechanical part of precision, thus mechanical hybrid power system inevitably vibrate, noise, abrasion and regular
The problems such as safeguarding.In contrast, composite structure motor is not only without the above problem, but also with simple in structure, easily controllable excellent
Gesture.
Brushless composite structure motor scheme has higher reliability and practical value in composite structure motor, is the field
Hot research direction.Application No. is the patents of CN104377918A, CN104393726A and CN104377919A to describe one
Compound machine scheme that class is brushless, such scheme are actually by a brushless double-rotor machine and a permanent magnet synchronous motor series connection
The composite structure motor scheme of composition.Although the program realizes composite structure motor non-brushing, it also has complicated, body
The disadvantages such as product is larger, integrated level is low.
Invention content
The invention aims to solve the composite structure motor in existing hybrid vehicle, there are complicated, volumes
Problem larger, integrated level is low provides a kind of unilateral adjustable magnetic profile shaft to integrated form electric stepless gear.
Unilateral side adjustable magnetic profile shaft of the present invention is to the first structure of integrated form electric stepless gear：
Unilateral adjustable magnetic profile shaft to integrated form electric stepless gear include casing, two double winding stators, p-m rotor, tune
Rotor, modulation rotor output shaft and p-m rotor output shaft processed；
Each outer toroid end face of two double winding stators is separately fixed on the left and right end face inner wall of casing, and two double
Region ecto-entad is disposed with p-m rotor and modulation rotor between wound stator；Modulation rotor is fixed on modulation ring
In rotor of output shaft axle, the one end for modulating rotor output shaft is rotatablely connected by second bearing and fourth bearing with p-m rotor,
The other end for modulating rotor output shaft is stretched out from an end cap of casing, and is rotatablely connected by first bearing and casing；
P-m rotor is located between double winding stator and modulation rotor, and one end of p-m rotor output shaft is fixed on permanent magnetism
On rotor, the other end of p-m rotor output shaft is stretched out from another end cap of casing, and is rotated by 3rd bearing and casing
Connection；
There are axial air-gap L1 between p-m rotor and double winding stator；There are axis between p-m rotor and modulation rotor
To air gap L2；The axis of p-m rotor output shaft and modulation rotor output shaft overlaps；
Double winding stator is made of stator core, the first stator winding and the second stator winding；First stator winding is one
A m1Phase stator winding, when the first stator winding is connected with m1When phase alternating current, p can be formeds1The rotating armature magnetic field of number of pole-pairs,
m1、ps1For positive integer；Second stator winding is a m2Phase stator winding, when the second stator winding is connected with m2When phase alternating current,
P can be formeds2The rotating armature magnetic field of number of pole-pairs, m2、ps2For positive integer；
P-m rotor is made of multiple permanent magnet units and rotor field spider, and rotor field spider is by two nose circle faces and an annulus
The closed frame of composition, permanent magnet unit are arranged in two nose circle faces, and it is p that each nose circle face, which is formed by magnetic field number of pole-pairs,PM,
pPMFor positive integer；
Rotor is modulated by 2pmA protrusion unit and modulation rotor iron core are constituted, pmFor positive integer；Modulate rotor iron
The heart is circular ring shape, and respectively there is p in the nose circle face of both sidesmA protrusion unit；
And above-mentioned parameter meets ps1=| kpPM+jpm| and ps2=kpPM, wherein k is positive integer, and j is integer.
Preferably, the symmetrical configuration of two side discs end face of p-m rotor, positional symmetry, each disk end face of p-m rotor
Upper table, which is sticked, sets or is embedded in the p of settingPMA first permanent magnet unit and pPMA second permanent magnet unit is to modulate rotor output
It uniformly arranges in radial line centered on axis, the first permanent magnet unit and the second permanent magnet unit magnetize in an axial direction, and the two is filled
Magnetic direction is opposite.
Preferably, be staggered p on each disk end face of p-m rotorPMA first permanent magnet unit and pPMA iron core
Protrusion element, while they are uniformly arranged centered on modulating rotor output shaft in radial line, the first permanent magnet unit edge
The magnetizing direction of axial charging, same all first permanent magnet units in disk end face is identical, positional symmetry on two side discs end faces
Two piece of first permanent magnet unit magnetizing direction it is identical.
Preferably, protrusion unit and adjustable magnetic rotor iron core select soft-magnetic composite material, silicon steel sheet, solid-iron or soft magnet
Oxysome.
Preferably, 2pmA protrusion unit and modulation rotor iron core are integrated or separate piece, the shape of protrusion unit with
Meaning.
Unilateral side adjustable magnetic profile shaft of the present invention is to second of structure of integrated form electric stepless gear：
Unilateral adjustable magnetic profile shaft includes casing, double winding stator, p-m rotor, modulates ring to integrated form electric stepless gear
Rotor, modulation rotor output shaft and p-m rotor output shaft；
The outer toroid end face of double winding stator is fixed on the end face inner wall of casing；Modulation rotor is fixed on modulation ring and turns
One end of sub- output shaft, modulate rotor output shaft the other end from an end cap of casing stretch out, and by 3rd bearing with
Casing is rotatablely connected；
P-m rotor is located between double winding stator and modulation rotor, and one end of p-m rotor output shaft passes through the second axis
It holds and is stretched out from another end cap of casing with modulation rotor output shaft rotation connection, the other end of p-m rotor output shaft, and
It is rotatablely connected by first bearing and casing；
There are axial air-gap L1 between p-m rotor and double winding stator；There are axis between p-m rotor and modulation rotor
To air gap L2；The axis of p-m rotor output shaft and modulation rotor output shaft overlaps；
Double winding stator is made of stator core, the first stator winding and the second stator winding；First stator winding is one
A m1Phase stator winding, when the first stator winding is connected with m1When phase alternating current, p can be formeds1The rotating armature magnetic field of number of pole-pairs,
m1、ps1For positive integer；Second stator winding is a m2Phase stator winding, when the second stator winding is connected with m2When phase alternating current,
P can be formeds2The rotating armature magnetic field of number of pole-pairs, m2、ps2For positive integer；
The number of pole-pairs of p-m rotor is pPM, pPMFor positive integer；P-m rotor is by multiple permanent magnet units and rotor field spider structure
At multiple permanent magnet units are arranged in the holder of circular ring shape；
Rotor is modulated by pmA protrusion unit and modulation rotor iron core are constituted, pmFor positive integer；Modulate rotor iron core
For circular ring shape, there is p in nose circle facemA protrusion unit；
And above-mentioned parameter meets ps1=| kpPM+jpm| and ps2=kpPM, wherein k is positive integer, and j is integer.
Preferably, Surface Mount setting or the embedded p being arranged in the holder of the circular ring shape of p-m rotorPMA first permanent magnet unit
And pPMA second permanent magnet unit is uniformly arranged centered on p-m rotor output shaft in radial line, the first permanent magnet unit and
Second permanent magnet unit magnetizes in an axial direction, and the two magnetizing direction is opposite.
Preferably, be staggered p in the holder of the circular ring shape of p-m rotorPMA first permanent magnet unit and pPMA iron core
Unit, while they are uniformly arranged centered on p-m rotor output shaft in radial line, the first permanent magnet unit fills in an axial direction
The magnetizing direction of magnetic, all first permanent magnet units is identical.
Preferably, protrusion unit and adjustable magnetic rotor iron core select soft-magnetic composite material, silicon steel sheet, solid-iron or soft magnet
Oxysome.
Preferably, 2pmA protrusion unit and modulation rotor iron core are integrated or separate piece, the shape of protrusion unit with
Meaning.
Advantages of the present invention：There are two independent to integrated form electric stepless gear tool for the unilateral adjustable magnetic profile shaft of the present invention
Shaft, and the torque rotary speed of two axis is completely independent, therefore, present invention is particularly suitable for applications in electric vehicle, wind-power electricity generation, fishes
Thunder propulsion etc. needs the occasion of double shaft independent controls.
The invention belongs to brushless structure scheme, there is no electric brush slip ring mechanism in scheme, has brush composite junction compared to existing
For structure motor scheme, efficiency of the invention, reliability are obviously improved.Simultaneously compared to existing brushless composite structure side
For case, the present invention has the advantages such as significantly simple in structure, small, integrated level is high.
Motor of the present invention has the advantages that power density is high, torque density is high.
Description of the drawings
Fig. 1 is unilateral adjustable magnetic profile shaft described in embodiment one to the structural schematic diagram of integrated form electric stepless gear；
Fig. 2 is the C-C sectional views of Fig. 1；
Fig. 3 is the D-D sectional views of Fig. 1；
Fig. 4 is unilateral adjustable magnetic profile shaft described in embodiment two to the structural schematic diagram of integrated form electric stepless gear；
Fig. 5 is the E-E sectional views of Fig. 6；
Fig. 6 is the F-F sectional views of Fig. 6；
Fig. 7 is unilateral adjustable magnetic profile shaft described in embodiment three to the structural schematic diagram of integrated form electric stepless gear；
Fig. 8 is the G-G sectional views of Figure 11；
Fig. 9 is the H-H sectional views of Figure 11；
Figure 10 is unilateral adjustable magnetic profile shaft described in example IV to the structural schematic diagram of integrated form electric stepless gear；
Figure 11 is the I-I sectional views of Figure 16；
Figure 12 is the J-J sectional views of Figure 16；
Figure 13 is the A-A sectional views of Fig. 1；
Figure 14 is a quarter enlarged drawing of Figure 13；
Figure 15 is the B-B sectional views of Fig. 1；
Figure 16 is 1/6th enlarged drawings of Figure 15；
Figure 17 is the winding arrangement schematic diagram of the first stator winding；
Figure 18 is the winding arrangement schematic diagram of the second stator winding.
Specific implementation mode
With reference to Fig. 1~Figure 18, the invention will be further described.
Speed changer in hybrid vehicle has a kind of brushless compound machine in the prior art using composite structure motor, such as
Scheme disclosed in Chinese patent CN104377918A, CN104393726A and CN104377919A, such scheme be actually by
One brushless double-rotor machine and permanent magnet synchronous motor composite structure motor scheme in series.Although the program is realized
Composite structure motor non-brushing, but it also has the disadvantages such as complicated, volume is larger, integrated level is low.The present invention proposes a kind of
Compound machine, there are two independent shafts for contiuously variable transmission tool of the present invention, and the torque rotary speed of two axis is completely independent, the present invention
Belong to brushless structure scheme, there is no electric brush slip ring mechanism in scheme, compared to it is existing have brush composite structure motor scheme for,
Efficiency, the reliability of the present invention is obviously improved.
Embodiment one：
Fig. 1~Fig. 2 is structural schematic diagram of the unilateral adjustable magnetic profile shaft in embodiment one to integrated form electric stepless gear.
Unilateral adjustable magnetic profile shaft to integrated form electric stepless gear include 4, two double winding stators 5, p-m rotors of casing
6, rotor 7, modulation rotor output shaft 1 and p-m rotor output shaft 9 are modulated；
Each outer toroid end face of two double winding stators 5 is separately fixed on the left and right end face inner wall of casing 4, two
Region ecto-entad is disposed with p-m rotor 6 and modulation rotor 7 between double winding stator 5；Modulation rotor 7 is fixed on
It modulates on rotor output shaft 1, one end of modulation rotor output shaft 1 is turned by second bearing 3 and fourth bearing 10 with permanent magnetism
Son 6 is rotatablely connected, and the other end of modulation rotor output shaft 1 is stretched out from an end cap of casing 4, and by first bearing 2 with
Casing 4 is rotatablely connected；
P-m rotor 6 is located between double winding stator 5 and modulation rotor 7, and one end of p-m rotor output shaft 9 is fixed on
On p-m rotor 6, the other end of p-m rotor output shaft 9 is stretched out from another end cap of casing 4, and by 3rd bearing 8 with
Casing 4 is rotatablely connected；
There are axial air-gap L1 between p-m rotor 6 and double winding stator 5；It is deposited between p-m rotor 6 and modulation rotor 7
In axial air-gap L2；The axis of p-m rotor output shaft 9 and modulation rotor output shaft 1 overlaps；
Double winding stator 5 is made of stator core 5-3, the first stator winding 5-1 and the second stator winding 5-2；First is fixed
Sub- winding 5-1 is a m1Phase stator winding, when the first stator winding 5-1 is connected with m1When phase alternating current, p can be formeds1It is extremely right
Several rotating armature magnetic field, m1、ps1For positive integer；Second stator winding 5-2 is a m2Phase stator winding, when the second stator around
Group 5-2 is connected with m2When phase alternating current, p can be formeds2The rotating armature magnetic field of number of pole-pairs, m2、ps2For positive integer；
P-m rotor 6 is made of multiple permanent magnet units and rotor field spider 6-3, rotor field spider 6-3 be by two nose circle faces and
The closed frame that one annulus is constituted, permanent magnet unit are arranged in two nose circle faces, and each nose circle face is formed by magnetic field pole
Logarithm is pPM, pPMFor positive integer；
The symmetrical configuration of 6 liang of side discs end faces of p-m rotor, positional symmetry, each disk end face upper table of p-m rotor 6
It is sticked and sets or be embedded in the p of settingPMA first permanent magnet unit 6-1 and pPMA second permanent magnet unit 6-2 is exported with p-m rotor
It uniformly arranging in radial line centered on axis 1, the first permanent magnet unit 6-1 and the second permanent magnet unit 6-2 magnetize in an axial direction, and
The two magnetizing direction is opposite.
Each disk end face upper table, which is sticked, sets or is embedded in the p of settingPMA permanent magnet unit 6-1 and pPMA permanent magnet unit
6-2 is uniformly arranged centered on modulating rotor output shaft 1 in radial line, permanent magnet unit 6-1 and the edges permanent magnet unit 6-2
Axial charging, and the magnetizing direction of the adjacent two pieces of permanent magnet units 6-1 and 6-2 in same disk end face is on the contrary, two side discs end faces
The upper symmetrical two pieces of permanent magnet unit 6-1 and 6-2 magnetizing directions in position are identical；
Rotor 7 is modulated by 2pmA protrusion unit 7-1 and modulation rotor iron core 7-2 are constituted, pmFor positive integer；Modulate ring
Rotor core 7-2 is circular ring shape, and respectively there is p in the nose circle face of both sidesmA protrusion unit 7-1；Protrusion unit 7-1 and adjustable magnetic rotor core
7-1 selects soft-magnetic composite material, silicon steel sheet, solid-iron or soft magnetic ferrite；2pmA protrusion unit 7-1 and modulation rotor iron
Heart 7-2 is integrated or separate piece, and the shape of protrusion unit 7-1 is random.
And above-mentioned parameter meets ps1=| kpPM+jpm| and ps2=kpPM, wherein k is positive integer, and j is integer.
In order to illustrate the operation principle of the present invention, said by taking structure shown in Fig. 1~Fig. 3, Figure 13~Figure 18 as an example below
It is bright.
If p-m rotor number of pole-pairs is pPM, rotating speed ΩPM, starting phase angle θPM, then p-m rotor be formed by permanent magnetism
Magnetomotive force FPM(θ, t) is represented by
F in formulak--- each harmonic magnetomotive force amplitude；
K --- permanent magnetism magnetomotive force overtone order；
θ --- mechanical angle；
T --- the time.
If the magnetic conduction block number for modulating rotor is pm, rotating speed Ωm, starting phase angle θm, then modulate under rotor effect
The space changed over time is represented by than magnetic conductance λ (θ, t)
λ in formula0、λi--- each harmonic is than magnetic conductance amplitude；
I --- harmonic ratio magnetic conductance number.
The permanent magnetic field that permanent magnet magnetic kinetic potential generates under modulation rotor effect is represented by
BPM(θ, t)=FPM(θ,t)λ(θ,t) (3)
B in formulak--- natural harmonic field amplitude, and Bk=Fkλ0；
Bk,i--- modulation harmonic field amplitude, and Bk,i=Fkλi。
By formula (3) it is found that two class magnetic fields will be will produce under the collective effect of p-m rotor and modulation rotor.The first kind is
The characteristics of natural harmonic field, such magnetic field be it magnetic field number of pole-pairs and rotating speed and the magnetomotive number of pole-pairs of p-m rotor and turn
Speed is identical, and the amplitude in such magnetic field is Bk.The characteristics of second class is to modulate harmonic field, such magnetic field is its magnetic field number of pole-pairs
Related to magnetic conduction block number in p-m rotor number of pole-pairs and modulation rotor, its rotational speed of magnetic field also turns with p-m rotor and modulation ring
Both sub rotating speed is related, and the amplitude in such magnetic field is Bk,i, as follows：
pk,j=| kpPM+jpm| (4)
J=0, ± 1, ± 2 ... (6)
P in formulak,j、Ωk,j--- the number of pole-pairs and synchronous angular velocity of modulation harmonic field.
According to principle of electromechanical energy conversion it is found that only under the number of pole-pairs and rotating speed same case in two magnetic field, ability
Constant torque is generated, to realize energy converting between mechanical.Therefore, the first stator winding 5-1 is designed to by winding arrangement
The armature field of identical as harmonic field is modulated number of pole-pairs and rotating speed can be generated.So, the first stator winding 5-1, modulation ring turn
Son and p-m rotor just constitute the double-rotor machine of magnetic field modulation type, concrete operating principle and Chinese patent
CN104377918A, CN104393726A are identical with the operation principle of the double-rotor machine scheme described in CN104377919A.
In this case, the electromagnetic torque acted on modulation ring is equal to the electromagnetic torque of the two for acting on stator and p-m rotor
The sum of, and their electromagnetic torque direction is opposite.Meanwhile modulate between rotor and p-m rotor and modulation rotor and
Torque relationship between first stator winding 5-1 is proportional always.In addition, the armature magnetic that the first stator winding 5-1 is generated
Field rotating speed is equal with modulation harmonic field rotating speed, therefore, can refer to formula (5) and carries out speed governing.Therefore, by the first stator winding 5-1,
It modulates under rotor and p-m rotor interaction, modulating rotor and p-m rotor can only realize that rotating speed decouples, but they it
Between torque be still coupling.
The second stator winding 5-2 further can be generated into number of pole-pairs identical as natural harmonic field by winding arrangement design
With the armature field of rotating speed.So, the second stator winding 5-2 and p-m rotor just constitute a permanent magnet synchronous motor.At this point,
Second stator winding 5-2, which is only acted on p-m rotor, generates torque, without generating torque with modulation rotor.Further, since the
The armature field number of pole-pairs that one stator winding 5-1 and the second stator winding 5-2 are generated is different, therefore not will produce and turn between them
In other words, between them square will not have an impact.Therefore, it is interacted by the second stator winding 5-2 and p-m rotor, it can
Realize the torque decoupler of modulation rotor and p-m rotor.
By above-mentioned analysis it is found that the electromagnetic torque on modulation rotor is only related to the first stator winding 5-1, ring is modulated
Rotor speed is related to the armature field of the first stator winding 5-1 and the rotating speed of p-m rotor；And electromagnetic torque on p-m rotor
It is not only related to the first stator winding 5-1, but also influenced by the second stator winding 5-2, at the same the rotating speed of p-m rotor only with
The armature field rotating speed of second stator winding 5-2 is identical.Therefore, for unilateral adjustable magnetic profile shaft to integrated form electric stepless speed change
For device, the torque rotary speed of the torque rotary speed and p-m rotor of modulating rotor is completely independent, and which achieves from a machinery
Variable speed work(of the port (modulation rotor or p-m rotor) to another mechanical ports (p-m rotor or modulation rotor)
Energy.
Compared to the brushless compound machine side in Chinese patent CN104377918A, CN104393726A and CN104377919A
For case, the present invention can save torque regulation motor in these schemes, therefore, this programme is simpler than these scenario-frames,
It is small, integrated level is high.
It is specific as follows in conjunction with Fig. 1~Fig. 3, Figure 13~Figure 18：
The number of pole-pairs of p-m rotor is 6 in Fig. 1~Fig. 3, and it is 10 to modulate magnetic conduction block number in rotor.By formula (4) it is found that gas
It will produce a series of modulation harmonic field in gap.In these modulation harmonic fields, when typically k=1, j=-1, is corresponding
Modulate harmonic field amplitude maximum, that is to say, that 4 pairs of pole field amplitude maximums in modulation harmonic field.Therefore, by the first stator
Winding 5-1 can generate 4 pairs of Polar armature magnetic fields by winding arrangement design, as shown in Figure 13, Figure 14, Figure 17.And pass through control the
One stator winding 5-1 generates the rotating speed of armature field and to modulate the rotating speeds of harmonic field identical for 4 pairs of poles, to make the first stator around
Group 5-1, modulation rotor and p-m rotor realize energy converting between mechanical.
It will also realize that simultaneously by formula (4), a series of natural harmonic field is will produce in air gap, these natural harmonic fields are worked as
In, when k=1 corresponding natural harmonic field amplitude maximum, that is to say, that p-m rotor generates the natural harmonic field width of 6 pairs of pole
Value is maximum.Therefore, by the second stator winding 5-2 by winding arrangement design can generate 6 pairs of Polar armature magnetic fields, as Figure 15, Figure 16,
Shown in Figure 18.And the rotating speed of armature field and 6 pairs of extremely nature harmonic wave harmonic fields are generated by the second stator winding 5-2 of control
Rotating speed is identical, then the second stator winding 5-2 and p-m rotor achieve that energy converting between mechanical.
Further, since the armature field number of pole-pairs difference (one that the first stator winding 5-1 and the second stator winding 5-2 are generated
A is 4 pairs of Polar armature magnetic fields, the other is 6 pairs of Polar armature magnetic fields), it will not be produced according to principle of electromechanical energy conversion, between them
Raw torque.In other words, it can't interact between them.Final effect is equivalent to, the first stator winding 5-1, modulation ring
Rotor and p-m rotor are a double-rotor machines；And to be equivalent to traditional permanent magnetism same for the second stator winding 5-2 and p-m rotor
Walk motor.In this way, modulation rotor and the decoupling of p-m rotor rotating speed, but two can be achieved by the control of the first stator winding 5-1
The torque of person is coupling (not being independent)；Modulation rotor further can be achieved by the control of the second stator winding 5-2
Torque decoupler between p-m rotor.To realize the complete solution of torque rotary speed between modulation rotor and p-m rotor
Coupling.And in hybrid power system, exactly need the torque rotary speed for connecting two shafts between engine and vehicle load complete
Decoupling.But it is characteristic of the invention that than previous brushless composite structure motor (brushless double-rotor machine and one it is traditional
Motor is simply connected realization) it is simple and compact for structure, integrated level is much higher.
Embodiment two：
Fig. 4~Fig. 6 is structural schematic diagram of the unilateral adjustable magnetic profile shaft in embodiment two to integrated form electric stepless gear.
It the difference is that only with embodiment one：P-m rotor 6 is made of multiple permanent magnet units and rotor field spider 6-3, is turned
Submounts 6-3 is the closed frame being made of two nose circle faces and an annulus, and permanent magnet unit is arranged in two nose circle faces,
It is p that each nose circle face, which is formed by magnetic field number of pole-pairs,PM, pPMFor positive integer, staggeredly set on each disk end face of p-m rotor 6
Set pPMA first permanent magnet unit 6-1 and pPMA iron core protrusion element 6-4, while during they are to modulate rotor output shaft 1
The heart is uniformly arranged in radial line, and the first permanent magnet unit 6-1 magnetizes in an axial direction, the same all first permanent magnet lists in disk end face
The magnetizing direction of first 6-1 is identical, the symmetrical two piece of first permanent magnet unit 6-1 magnetizing direction phases in position on two side discs end faces
Together.
Advantage of this embodiment is that under the permanent magnetic field of same number of pole-pairs, the permanent magnet dosage of half is saved.
Embodiment three：
Fig. 7~Fig. 9 is structural schematic diagram of the unilateral adjustable magnetic profile shaft in embodiment three to integrated form electric stepless gear.
Unilateral adjustable magnetic profile shaft includes casing 4, double winding stator 5, p-m rotor 6, adjusts to integrated form electric stepless gear
Rotor 7, modulation rotor output shaft 1 and p-m rotor output shaft 9 processed；
The outer toroid end face of double winding stator 5 is fixed on the end face inner wall of casing 4；Modulation rotor 7 is fixed on modulation
The other end of one end of rotor output shaft 1, modulation rotor output shaft 1 is stretched out from an end cap of casing 4, and passes through third
Bearing 8 is rotatablely connected with casing 4；
P-m rotor 6 is located between double winding stator 5 and modulation rotor 7, and one end of p-m rotor output shaft 9 passes through the
Two bearings 3 are rotatablely connected with modulation rotor output shaft 1, another end cap of the other end of p-m rotor output shaft 9 from casing 4
It stretches out, and is rotatablely connected by first bearing 2 and casing 4；
There are axial air-gap L1 between p-m rotor 6 and double winding stator 5；It is deposited between p-m rotor 6 and modulation rotor 7
In axial air-gap L2；The axis of p-m rotor output shaft 9 and modulation rotor output shaft 1 overlaps；
Double winding stator 5 is made of stator core 5-3, the first stator winding 5-1 and the second stator winding 5-2；First is fixed
Sub- winding 5-1 is a m1Phase stator winding, when the first stator winding 5-1 is connected with m1When phase alternating current, p can be formeds1It is extremely right
Several rotating armature magnetic field, m1、ps1For positive integer；Second stator winding 5-2 is a m2Phase stator winding, when the second stator around
Group 5-2 is connected with m2When phase alternating current, p can be formeds2The rotating armature magnetic field of number of pole-pairs, m2、ps2For positive integer；
The number of pole-pairs of p-m rotor is pPM, pPMFor positive integer；P-m rotor 6 is by multiple permanent magnet units and rotor field spider 6-
3 are constituted, and multiple permanent magnet units are arranged in the holder of circular ring shape；
The p of Surface Mount setting or embedded setting in the holder of the circular ring shape of p-m rotor 6PMA first permanent magnet unit 6-1 and
pPMA second permanent magnet unit 6-2 is uniformly arranged centered on p-m rotor output shaft 9 in radial line, the first permanent magnet unit
6-1 and the second permanent magnet unit 6-2 magnetize in an axial direction, and the two magnetizing direction is opposite.
Rotor 7 is modulated by pmA protrusion unit 7-1 and modulation rotor iron core 7-2 are constituted, pmFor positive integer；Modulate ring
Rotor core 7-2 is circular ring shape, and there is p in nose circle facemA protrusion unit 7-1；
And above-mentioned parameter meets ps1=| kpPM+jpm| and ps2=kpPM, wherein k is positive integer, and j is integer.
Operation principle is identical as example one.
Example IV：
Figure 10~Figure 12 is structural representation of the unilateral adjustable magnetic profile shaft to integrated form electric stepless gear in example IV
Figure.
It the difference is that only with embodiment three：Be staggered p in the holder of the circular ring shape of p-m rotor 6PMA first forever
Magnet unit 6-1 and pPMA core unit 6-2, while they are uniformly arranged centered on p-m rotor output shaft 9 in radial line
Cloth, the first permanent magnet unit 6-1 magnetize in an axial direction, and the magnetizing direction of all first permanent magnet unit 6-1 is identical.
The advantages of present embodiment is the permanent magnet dosage that half is saved under the permanent magnetic field of same number of pole-pairs.
Claims (4)
1. unilateral adjustable magnetic profile shaft is to integrated form electric stepless gear, which is characterized in that fixed including casing (4), two double windings
Sub (5), p-m rotor (6), modulation rotor (7), modulation rotor output shaft (1) and p-m rotor output shaft (9)；
Each outer toroid end face of two double winding stators (5) is separately fixed on the left and right end face inner wall of casing (4), two
Region ecto-entad is disposed with p-m rotor (6) and modulation rotor (7) between double winding stator (5)；Modulate rotor
(7) it is fixed on modulation rotor output shaft (1), one end of modulation rotor output shaft (1) passes through second bearing (3) and the 4th
Bearing (10) is rotatablely connected with p-m rotor (6), modulates the other end of rotor output shaft (1) from an end cap of casing (4)
It stretches out, and is rotatablely connected by first bearing (2) and casing (4)；
P-m rotor (6) is located between double winding stator (5) and modulation rotor (7), and one end of p-m rotor output shaft (9) is solid
It is scheduled on p-m rotor (6), the other end of p-m rotor output shaft (9) is stretched out from another end cap of casing (4), and passes through the
Three bearings (8) are rotatablely connected with casing (4)；
There are axial air-gap L1 between p-m rotor (6) and double winding stator (5)；P-m rotor (6) with modulation rotor (7) it
Between there are axial air-gap L2；The axis of p-m rotor output shaft (9) and modulation rotor output shaft (1) overlaps；
Double winding stator (5) is made of stator core (5-3), the first stator winding (5-1) and the second stator winding (5-2)；The
One stator winding (5-1) is a m1Phase stator winding, when the first stator winding (5-1) is connected with m1When phase alternating current, it can be formed
ps1The rotating armature magnetic field of number of pole-pairs, m1、ps1For positive integer；Second stator winding (5-2) is a m2Phase stator winding, when
Two stator winding (5-2) are connected with m2When phase alternating current, p can be formeds2The rotating armature magnetic field of number of pole-pairs, m2、ps2For positive integer；
P-m rotor (6) is made of multiple permanent magnet units and rotor field spider (6-3), and rotor field spider (6-3) is by two nose circle faces
The closed frame constituted with an annulus, permanent magnet unit are arranged in two nose circle faces, and each nose circle face is formed by magnetic field
Number of pole-pairs is pPM, pPMFor positive integer,
Rotor (7) is modulated by 2pmA protrusion unit (7-1) and modulation rotor iron core (7-2) are constituted, pmFor positive integer；Modulation
Rotor iron core (7-2) is circular ring shape, and respectively there is p in the nose circle face of both sidesmA protrusion unit (7-1)；
And above-mentioned parameter meets ps1=| kpPM+jpm| and ps2=kpPM, wherein k is positive integer, and j is integer；
Be staggered p on each disk end face of p-m rotor (6)PMA first permanent magnet unit (6-1) and pPMA iron core protrusion
Unit (6-4), while they are uniformly arranged centered on modulating ring p-m rotor output shaft (1) in radial line, the first permanent magnetism
Body unit (6-1) magnetizes in an axial direction, and the magnetizing direction of same all first permanent magnet units (6-1) in disk end face is identical, both sides
Symmetrical two piece of first permanent magnet unit (6-1) magnetizing direction in position is identical on disk end face.
2. unilateral adjustable magnetic profile shaft is to integrated form electric stepless gear according to claim 1, which is characterized in that protrusion unit
(7-1) and modulation rotor iron core (7-2) select soft-magnetic composite material.
3. unilateral adjustable magnetic profile shaft is to integrated form electric stepless gear according to claim 1, which is characterized in that protrusion unit
(7-1) and modulation rotor iron core (7-2) select silicon steel sheet, solid-iron or soft magnetic ferrite.
4. according to the unilateral adjustable magnetic profile shaft of claim 1,2 or 3 to integrated form electric stepless gear, which is characterized in that 2pm
A protrusion unit (7-1) and modulation rotor iron core (7-2) are integrated or separate piece, the shape of protrusion unit (7-1) are random.
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| CN201710042232.7A CN106685184B (en) | 2017-01-20 | 2017-01-20 | Unilateral adjustable magnetic profile shaft is to integrated form electric stepless gear |
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| CN106685184B true CN106685184B (en) | 2018-11-02 |
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| CN104393725B (en) * | 2014-12-10 | 2017-06-13 | 哈尔滨工业大学 | Axial magnetic field electromagnetic planetary gear speed changer |
| CN104377919B (en) * | 2014-12-10 | 2017-02-01 | 哈尔滨工业大学 | Axial-axial magnetic field electromagnetic planetary gear power divider |
| CN104377918B (en) * | 2014-12-10 | 2017-02-22 | 哈尔滨工业大学 | Axial-radial magnetic field electromagnetic planetary gear power divider |
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