CN107623418A - Electric rotating machine - Google Patents
Electric rotating machine Download PDFInfo
- Publication number
- CN107623418A CN107623418A CN201710566695.3A CN201710566695A CN107623418A CN 107623418 A CN107623418 A CN 107623418A CN 201710566695 A CN201710566695 A CN 201710566695A CN 107623418 A CN107623418 A CN 107623418A
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- China
- Prior art keywords
- mentioned
- coil
- rotor
- rotating machine
- electric rotating
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of electric rotating machine, possesses：Stator (10), it has the armature coil (12) for concentrating winding, armature coil (12) the generation armature flux；Outer rotor (20), its configure stator (10) radially inner side, armature flux by when rotate；And internal rotor (30), it configures the radially inner side in outer rotor (20), outer rotor (20) has the multiple external tooths (21) for being wound with induction coil (22) and magnet exciting coil (23), the higher harmonic component of induction coil (22) magnetic flux as caused by armature coil (12) produces induced-current, magnet exciting coil (23) induced-current by when produce magnetic field, internal rotor (30) has excitation coil, and as armature flux and as caused by magnet exciting coil (23), magnetic flux carries out excitation to the excitation coil.
Description
Technical field
The present invention relates to electric rotating machine.
Background technology
Patent document 1 discloses following technology, have：1st stator, it is equipped with the 1st stator winding of multiphase；1st turn
Son, it is disposed in the radially inner side of the 1st stator, is equipped with the 1st rotor windings of multiphase；And the 3rd rotor, it is configured at the 1st
Between stator and the 1st rotor, permanent magnet is equipped with, driving the 1st rotor using the rotating speed faster than the 3rd rotor, (revolutional slip is negative shape
State), so as to which the regenerative torque of the 1st rotor is delivered into the 3rd rotor as anti-torque.
Prior art literature
Patent document
Patent document 1：JP 2009-73472 publications
The content of the invention
Problems to be solved by the invention
However, in this electric rotating machine, in the case where the regenerative torque of the 1st rotor is low, it is necessary to electric current is flowed to the 1st
Rotor windings and improve the regenerative torque of the 1st rotor, or the quantity of permanent magnet built-in in the 3rd rotor of increase.
In the case where making electric current flow to the 1st rotor windings, it is necessary to make electric current flowing by collector ring, in robustness, dimension
Problem be present in terms of the easiness of shield.If increasing magnet quantity built-in in the 3rd rotor, have caused by substantial amounts of magnet
The problem of high cost.
Therefore, it is an object of the present invention to provide can ensure that robustness, the easiness safeguarded and can be exported with low cost
The electric rotating machine of high torque (HT).
The solution used to solve the problem
In order to solve the above problems, electric rotating machine of the invention possesses：Stator, it, which has, concentrates coiled armature line
Circle, the armature coil produce armature flux；Outer rotor, it configures the radially inner side in said stator, led in above-mentioned armature flux
Out-of-date rotation；And internal rotor, it configures the radially inner side in above-mentioned outer rotor, and above-mentioned outer rotor, which has, is wound with induction coil
With multiple external tooths of magnet exciting coil, the higher harmonic component of above-mentioned induction coil magnetic flux as caused by above-mentioned armature coil produces
Induced-current, above-mentioned magnet exciting coil above-mentioned induced-current by when produce magnetic field, above-mentioned internal rotor, which has, is wound with excitation line
Multiple internal tooths of circle, above-mentioned excitation coil magnetic caused by as the above-mentioned armature flux by aforementioned external teeth and in above-mentioned magnet exciting coil
Logical excitation.
Invention effect
So, according to the present invention, the easiness that can ensure that robustness, safeguard can be provided, and can be high with low cost output
The electric rotating machine of torque.
Brief description of the drawings
Fig. 1 is the sectional view for being cut off the electric rotating machine of one embodiment of the present of invention with the plane with rotating shaft direct cross.
Fig. 2 is the sectional view for the electric rotating machine for being shown specifically one embodiment of the present of invention.
Fig. 3 is the stereogram of the The lid component for the electric rotating machine for showing one embodiment of the present of invention.
Fig. 4 is the sectional view of the internal rotor for the electric rotating machine for being shown specifically one embodiment of the present of invention.
Fig. 5 is the wiring diagram of the excitation coil of the internal rotor of the electric rotating machine of one embodiment of the present of invention.
Fig. 6 is the induction coil for the electric rotating machine for showing one embodiment of the present of invention and connecing for magnet exciting coil and diode
The schematic diagram of line.
Fig. 7 is to show the section of caused magnetic flux density and magnetic flux line in the electric rotating machine of one embodiment of the present of invention
Figure.
Fig. 8 is the magnetic flux density for showing caused 2 space harmonicses in the electric rotating machine of one embodiment of the present of invention
With the sectional view of magnetic flux line.
Fig. 9 is the coordinate diagram of the current phase torque characteristics for the electric rotating machine for showing one embodiment of the present of invention.
Figure 10 is the figure of the composition of the hybrid drive system for the electric rotating machine for showing to possess one embodiment of the present of invention.
Figure 11 is the alignment chart of the electric rotating machine of one embodiment of the present of invention.
Figure 12 is the sectional view for the existing electric rotating machine cut-out that permanent magnet is will be provided with the plane with rotating shaft direct cross.
Figure 13 is the coordinate diagram for the current phase torque characteristics for showing the electric rotating machine shown in Figure 12.
Figure 14 is the sectional view for being cut off the existing electric rotating machine for reducing permanent magnet with the plane with rotating shaft direct cross.
Figure 15 is the coordinate diagram for the current phase torque characteristics for showing the electric rotating machine shown in Figure 14.
Description of reference numerals
1：Electric rotating machine
10：Stator
12：Armature coil
13：Stator tooth
20：Outer rotor
21：External tooth
22：Induction coil
23：Magnet exciting coil
24：Bridge portion
25：Induction pole
26：Flange part
27：The lid component
27b：Fastener
30：Internal rotor
32：Excitation coil
33：Internal tooth
34：Groove
50：Rectification circuit
Embodiment
The electric rotating machine of an embodiment of the invention possesses：Stator, it has the concentration winding for producing armature flux
Armature coil；Outer rotor, its configure stator radially inner side, armature flux by when rotate；And internal rotor, it is matched somebody with somebody
The radially inner side in outer rotor is put, outer rotor has the multiple external tooths for being wound with induction coil and magnet exciting coil, the induction coil
The higher harmonic component of magnetic flux according to caused by armature coil and produce induced-current, the magnet exciting coil passes through in induced-current
When produce magnetic field, internal rotor has the multiple internal tooths for being wound with excitation coil, the excitation coil and the armature flux by external tooth
Excitation is carried out with the magnetic flux interlinkage as caused by magnet exciting coil.
Thus, the electric rotating machine of an embodiment of the invention can ensure that robustness, the easiness safeguarded, and with low
Cost output high torque (HT).
[embodiment]
Hereinafter, the electric rotating machine that embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In Fig. 1, the electric rotating machine 1 of one embodiment of the present of invention possesses：Be shaped generally as drum stator 10,
It is arranged as opposed to across air gap and stator 10 in the outer rotor 20 of the radially inner side of stator 10 and across air gap and outer rotor 20
It is arranged as opposed to the internal rotor 30 in the radially inner side of outer rotor 20.Outer rotor 20 and internal rotor 30 are with rotary shaft 40 in rotation
The heart is respectively supported at motor casing (not shown) and can rotated against.
In addition, " radial direction " is the direction orthogonal with the direction of the extension of rotary shaft 40, the spoke centered on rotary shaft 40 is represented
Penetrate direction." radial outside " is the side radially away from rotary shaft 40, and " radially inner side " is radially adjacent rotary shaft 40
Side.
In addition, " circumference " represents the circumferencial direction centered on rotary shaft 40.In addition, " axial direction " represents that rotary shaft 40 extends
Direction.
(stator)
In fig. 2, stator 10 possesses stator core 11 and armature coil 12.Fig. 2 shows 90 degree in 360 degree of mechanical angle
(1/4) longitudinal section view.Stator core 11 includes the magnetic component of high magnetic permeability, for example, including by multiple electromagnetic steel plates in axle
The component being laminated upwards.
In the radially inner side of stator core 11 side i.e. relative with outer rotor 20 formed with multiple stator tooths 13.Stator tooth
13 is prominent from stator core 11 to radially inner side, in the circumferential by defined interval formed with multiple.
In the circumferential formed with the groove 14 as channel-shaped space between adjacent stator tooth 13.It is accommodated with groove 14 and three-phase
The W phases of alternating current, V phases, U corresponding armature coil 12.Armature coil 12 is by concentrating winding to be wound in stator tooth 13.Electricity
Pivot coil 12 produces magnetic flux (armature flux) when being powered.
Stator 10 provides three-phase alternating current so as to produce the rotating excitation field rotated in the circumferential to armature coil 12.The stator
10 make caused armature flux be interlinked with outer rotor 20 so as to drive outer rotor 20 to rotate.
As described above, in stator 10, armature coil 12 is concentrated and is wound in stator tooth 13.Therefore, to armature coil 12
There is provided three-phase alternating current in the case of, in stator 10 except produce with outer rotor 20 rotation synchronous rotary rotating excitation field with
Outside, can also produce and the asynchronous higher hamonic wave rotating excitation field of the rotation of outer rotor 20.Included in the higher hamonic wave rotating excitation field
2 space harmonicses (3 time harmonics under synchronous rotating frame) under rest frame.Therefore, produced by stator 10
Magnetic flux in can be superimposed with higher harmonic component.
(outer rotor)
Outer rotor 20 possesses external tooth 21, induction coil 22, magnet exciting coil 23 and bridge portion 24.
External tooth 21 includes the magnetics such as the high steel of magnetic conductivity, internally forms magnetic circuit.Bridge portion 24 is formed as with external tooth 21
One, will be connected between external tooth 21 adjacent in the circumferential.Therefore, connected in the circumferential between adjacent external tooth 21 by bridge portion 24
Connect.
In induction pole 25 of the circumferential core in bridge portion 24 formed with the extension from bridge portion 24 to radial outside.It is preferred that feel
Answer on each q axles (reference picture 6) that pole 25 is configured between external tooth 21 adjacent in the circumferential.
Induction pole 25 extends to the predetermined bits of the face (outer peripheral face) of the radial outside than outer rotor 20 in the inner part from bridge portion 24
Put.In through hole 25bs of the top ends 25a of induction pole 25 formed with insertion top ends 25a in the axial direction.
Aforementioned external teeth 21, bridge portion 24 and induction pole 25 are, for example, to be laminated multiple electromagnetic steel plates in the axial direction so as to be formed
It is integrated.
It is that the side relative with internal rotor 30 is provided with flange part 26 in the radially inner side of external tooth 21.The radial direction of the flange part 26
The face (inner peripheral surface) of inner side is relative with the outer peripheral face of the internal tooth described later 33 of internal rotor 30 across air gap.It is adjacent outer in the circumferential
Defined space is provided between the flange part 26 of tooth 21.The distance in the space is set as：Even in providing electricity to magnet exciting coil 23
In the case of flowing and making external tooth 21 magnetized, magnetic flux is not flowed through yet between adjacent flange part 26.
Accordingly, it is capable to prevent the armature flux from the stator 10 by external tooth 21, as caused by external tooth 21 magnetic flux through excess convexity
Edge 26 flows to adjacent external tooth 21.Accordingly, it is capable to make a large amount of armature fluxs, magnetic flux and internal rotor 30 are handed over as caused by external tooth 21
Chain.
Induction coil 22 is wound in the radial outside in the bridge portion 24 of external tooth 21 in a manner of concentrating and wind, that is, is wound in stator
10 sides.Above-mentioned induction pole 25 is between the induction coil 22 on external tooth 21 adjacent in the circumferential.It is adjacent in the circumferential
Induction coil 22 is wound in external tooth 21 in a manner of the winding winding for turning into reverse in the circumferential.
Higher harmonic component that induction coil 22 is superimposed in the magnetic flux according to caused by the side of stator 10 and produce induced-current.
Specifically, when three-phase alternating current provides to armature coil 12 and produces rotating excitation field in stator 10, produced in the side of stator 10
The magnetic flux of raw higher harmonic component interlinks with induction coil 22.Thus, induction coil 22 produces induced-current.
The lid component 27 is provided with a manner of covering induction coil 22 in the radial outside of induction coil 22.The lid component 27 is for example
It is made of stainless steel and forms tabular.Formed in the top ends 21a of the radial outside of external tooth 21 in a manner of extending in the axial direction
There is groove 21b, groove 21b circumferential side is embedded in for the circumferential end of The lid component 27.The circumferential end of The lid component 27 is from axle
To embedded groove 21b, thus The lid component 27 is maintained between adjacent external tooth 21.
As shown in figure 3, the axial direction of circumferential substantial middle of the The lid component 27 when being held in external tooth 21 (on being in Fig. 3
Lower direction) two sides are formed with slit 27a.In the circumferential substantial middle of The lid component 27, oriented slit is formed in slit 27a
The fastener 27b that 27a openend protrudes.Stop hole 27c is provided with fastener 27b top ends.
Fastener 27b and stop hole 27c are formed：Between The lid component 27 is held in external tooth 21 and fastener 27b to
During radially inner side bending, stop hole 27c and the through hole 25b of induction pole 25 location overlap.In overlapping stop hole 27c and pass through
Pin is inserted vertically in through hole 25b, so as to engage The lid component 27 in middle body.Thus, induction coil 22 is held in outer
Rotor 20 by centrifugal force without being destroyed.
In fig. 2, magnet exciting coil 23 is wound in the radially inner side in the bridge portion 24 of external tooth 21 in a manner of concentrating and wind, that is, rolls up
It is around in the side of internal rotor 30.Adjacent magnet exciting coil 23 is wound in a manner of the winding winding for turning into reverse in the circumferential in the circumferential
In external tooth 21.It is wound in the induction coil 22 of same external tooth 21 and magnet exciting coil 23 is wound into direction identical winding winding.
Alternating current is DC current using rectification circuit 50 (reference picture 6) rectification described later as caused by induction coil 22
And it is supplied to magnet exciting coil 23.
(internal rotor)
In Fig. 4, internal rotor 30 possesses rotor core 31 and excitation coil 32.Fig. 4 shows 90 degree in 360 degree of mechanical angle
(1/4) longitudinal section view.Rotor core 31 includes the magnetic component of high magnetic permeability, for example, including by multiple electromagnetic steel plates in axle
The component being laminated upwards.
In the radial outside of rotor core 31 side i.e. relative with outer rotor 20 formed with multiple internal tooths 33.Internal tooth 33 from
Rotor core 31 is prominent to radial outside, and in the circumferential with equal intervals formed with multiple.
In the circumferential formed with the groove 34 as channel-shaped space between adjacent internal tooth 33.It is accommodated with groove 34 and intersects with three
Flow each corresponding excitation coil 32 of electricity.
As shown in figure 5, excitation coil 32 presses three-phase Y type wiring.Switching is provided with excitation coil 32 makes three-phase Y type wiring short
Switch 32a, the 32b for connecing and disconnecting.The switch 32a, 32b switch as follows：It is egulation rotating speed in the rotating speed of internal rotor 30
Short circuit when height above rotates, disconnects when the rotating speed of internal rotor 30 is less than egulation rotating speed.Profit can for example be used by switching 32a, 32b
The centrifugal force caused by the rotation of internal rotor 30 and mechanically switch short circuit and disconnect switch.
(rectification circuit)
Electric rotating machine 1 possesses is supplied to excitation by the induced-current rectification of the exchange caused by induction coil 22 for direct current
The rectification circuit 50 of coil 23.
As shown in fig. 6, rectification circuit 50 possesses 2 diodes D1, D2 as rectifier cell, by these diodes D1, D2,
2 induction coils 22 and 2 magnet exciting coils 23 connect and form closed circuit.
Rectification circuit 50 is located at outer rotor 20 to be accommodated in the state of wiring basal disc for example (not shown).Rectification circuit 50
The inside of outer rotor 20 can be installed on.
In rectification circuit 50, with diode D1, D2 common cathode polar form neutral point jaw type diode (led) module to respectively by 2
The induced-current of exchange carries out halfwave rectifier caused by induction coil 22, and the cathode side after full-wave rectification and magnet exciting coil 23 are connected
Connect, make magnetization energy source so as to efficiently apply flexibly 2 space harmonicses.2 magnet exciting coils 23 are when being provided DC current
Produce inducting flux.
(effect of electric rotating machine)
In the electric rotating machine 1 of the present embodiment, make to keep away in the stator 10 for possessing the armature coil 12 for concentrating winding
Exempt from 2 space harmonicses (being 3 time harmonics on fundamental wave synchronous rotating frame) under rest frame caused by ground with dashing forward
The induction coil 22 of the outer rotor 20 of pole structure interlinks and produces induced-current.The induced electricity of exchange caused by induction coil 22
The rectification of circulation over commutation circuit 50 is supplied to magnet exciting coil 23 for DC current.Magnet exciting coil 23 is when being provided DC current
Produce inducting flux.
Therefore, electric rotating machine 1 can apply flexibly the reluctance torque of the rotating excitation field of stator 10 and the self-excitation type electricity of magnet exciting coil 23
Magnet torque.In addition, can be without using permanent magnet, can cost of implementation reduction.
Moreover, the magnetic circuit of outer rotor 20 is open magnetic circuit, thus it is easy as the excitation coil 32 for being configured at internal rotor 30
The structure to be interlinked with the magnetic flux of the armature flux of the armature coil 12 of stator 10 and the magnet exciting coil 23 of outer rotor 20.
The armature flux of the armature coil 12 rotated by the outer rotor 20 as open magnetic circuit with fundamental frequency and
The rotating excitation field of the magnetic flux of magnet exciting coil 23 occurs to interlink and turn into excitation source in internal rotor 30.By being encouraged relative to this
The rotating excitation field of magnetic source slides (internal rotor 30 is slower than rotating excitation field or rotates soon) so as in the excitation coil of internal rotor 30
Induced-current is produced in 32, torque is produced in internal rotor 30.
Internal rotor 30 rotates (i.e. negative slip) than fundamental wave rotating excitation field and turned so as to produce regeneration in internal rotor 30 soon
Square, the power running torque as anti-torque is produced in outer rotor 20.Thus, outer rotor 20 is except that can be utilized electricity
Beyond torque caused by the armature flux of pivot coil 12, moreover it is possible to obtain between internal rotor 30 and outer rotor 20 occur electromagnetic coupled and
Caused electromagnetic torque.
In the past, permanent magnet built-in in rotor turned into excitation source, it is difficult to change excitation magnetomotive force, and in the present embodiment,
By changing armature flux (changing the electric current flowed through in armature coil 12), the magnetic flux of internal rotor 30 can be changed.
It therefore, there is no need to flow through electric current in the excitation coil 32 of internal rotor 30 to obtain variable-ratio characteristic, system can be realized
The simplification of system, robustness, the easiness safeguarded are can ensure that, and high torque (HT) can be exported.
In addition, in the past, higher hamonic wave magnetic flux interlinks with the excitation coil 32 of internal rotor 30 can cause higher hamonic wave copper occurs
Damage, and encouraged oneself by rectification circuit 50, energy moment Eliminate highter harmonic, reduce the higher hamonic wave to be interlinked with internal rotor 30.
In addition, outer rotor 20 is set into open magnetic circuit, space is provided between the flange part 26 of external tooth 21, in order to improve machine
Tool intensity and possess the bridge portion 24 of minimum widith, due to being set to this composition, therefore the serial magneto resistive of radial direction and increasing can be reduced
Big circumferential magnetic resistance in parallel, the magnetic flux that can make to interlink with internal rotor 30 increase.
As shown in Figure 7, it is known that in the electric rotating machine 1 of the present embodiment, the armature flux of stator 10 is big by external tooth 21
Amount is interlinked with the excitation coil 32 of internal rotor 30.
So, the magnetic resistance in parallel for making outer rotor 20 is maximum, makes serial magneto resistive for minimum, therefore can prevent electromagnetic coupled amount
Reduce and increase the torque of outer rotor 20.
In addition, the central portion (q axles) in bridge portion 24 is provided with induction pole 25, thus can make 2 space harmonicses largely with sensing
Coil 22 interlinks, and can make the self-excitation quantity of magnetism increase of 2 space harmonicses.
As shown in Figure 8, it is known that in the electric rotating machine 1 of the present embodiment, using induction pole 25 make 2 space harmonicses largely with
Induction coil 22 is interlinked.
(comparison with existing electric rotating machine)
In fig. 12, existing electric rotating machine 100 possesses：Stator 110, it is in the multiple stator tooths prominent to radially inner side
Armature coil 112 is wound with 113；Magnmet rotor 120, it possesses the permanent magnet 121 for being configured at radial outside and is configured at footpath
To the permanent magnet 122 of inner side；And inductiopn rotor 130, it is wound with excitation line on the rotor tooth 133 prominent to radial outside
Circle 132.
Figure 13 shows the Magnmet rotor 120 (PM) for making existing electric rotating machine 100 as shown in figure 12 with 1000r/min
Rotated, make inductiopn rotor 130 (IM) with 1000r/min (revolutional slip s=0), 2000r/min (revolutional slip s=-1),
The current phase torque of Magnmet rotor 120 (PM) and inductiopn rotor 130 (IM) when 3000r/min (revolutional slip s=-2) drives
Characteristic.
As shown in figure 13, inductiopn rotor 130 is so that negative slip rotates and produces regenerative torque, and thus anti-torque can be made
For Magnmet rotor 120, it can confirm that torque adds, but the electromagnetic coupled of inductiopn rotor 130 and Magnmet rotor 120 is weak, nothing
Method transmits enough torques.
In fig. 14, existing electric rotating machine 200 possesses the stator 110 same with Figure 12；The magnet for eliminating Figure 12 turns
Son 120 permanent magnet 122 and be formed as the Magnmet rotor 220 of this layer of permanent magnet 121；And turn to radial outside is prominent
The inductiopn rotor 230 of excitation coil 232 is wound with sub- tooth 233.Figure 14 shows the footpath of 45 degree (1/8) in 360 degree of mechanical angle
To sectional view.
So, Figure 15 has been shown as solving the problems, such as the magnetic that magnet amount is more and makes the electric rotating machine 200 that permanent magnet is one layer
The current phase torque characteristics of iron rotor 220 (PM) and inductiopn rotor 230 (IM).
As shown in figure 15, in the case where making permanent magnet be one layer, the magnetic flux to be interlinked with inductiopn rotor 230 significantly drops
It is low, and the electromagnetic coupled power of inductiopn rotor 230 and Magnmet rotor 220 reduces, and the regenerative torque of inductiopn rotor 230 reduces.This
Outside, in order to compare, be designed as with the same volume of electric rotating machine 2 shown in Figure 12, because the permanent magnet of Magnmet rotor 220 is one
Layer, thus can expand internal diameter, the external diameter increase of inductiopn rotor 230.The external diameter of stator 110 is common.
Fig. 9 is the coordinate diagram for the current phase torque characteristics for showing the present embodiment.In fig.9, by the square frame bag on right side
The part enclosed, is designated as that " WF 500r/min " line is to make outer rotor 20 (WF) internal rotor 30 (IM) is with 1000r/ with 500r/min
Min to equidirectional rotate when characteristic.
Equally, it is designated as that " WF 1000r/min " line is to make outer rotor 20 internal rotor 30 is with 2000r/ with 1000r/min
Min to equidirectional rotate when characteristic.It is designated as that " WF 2000r/min " line is to make outer rotor 20 with 2000r/min, interior turn
Son 30 with 4000r/min to equidirectional rotate when characteristic.Be designated as " WF 3000r/min " line be make outer rotor 20 with
3000r/min, internal rotor 30 is with 5000r/min to characteristic during identical rotation.
So, by making outer rotor 20 be open magnetic circuit, the armature flux of stator 10 largely interlinks with internal rotor 30, therefore
The regenerative torque of internal rotor 30 adds.Seeing as the regenerative torque increase of internal rotor 30, the torque of outer rotor 20 is significantly
Add.
In addition, in order to be compared, the current phase torque characteristics of the present embodiment shown in Fig. 9 is by the rotation of the present embodiment
Rotating motor 1 presses result when being designed with Figure 12, Figure 14 existing electric rotating machine identical stator outer diameter.
(hybrid drive system for applying the electric rotating machine of the present embodiment)
In Fig. 10, electric rotating machine 1 forms hybrid drive system together with engine 2, battery 3, inverter 4, drive shaft 5
8。
The output shaft 30A of internal rotor 30 is linked by clutch 6 and engine 2.Clutch 6 can be by the song of engine 2
The rotation of axle is delivered to the output shaft 30A of internal rotor 30 transmission state with cutting off from the bent axle of engine 2 to internal rotor 30
Output shaft 30A switches between transmitting the dissengaged positions of rotation.
Internal rotor 30 rotates integrally when clutch 6 is in transmission state with the bent axle of engine 2.
Disk brake 7 is provided with the output shaft 30A of internal rotor 30.Output shaft of the disk brake 7 to internal rotor 30
30A applies mechanical braking force.
The output shaft 20A of outer rotor 20 links with drive shaft 5, and outer rotor 20 rotates integrally with drive shaft 5.
Battery 3 includes secondary cell, is connected with inverter 4.Inverter 4 is connected with the armature coil 12 of stator 10.Inversion
Electric power of the device 4 by the electrical power conversion of the direct current obtained from battery 3 for three-phase alternating current, the electric power of the three-phase alternating current is carried
Supply armature coil 12.
In this hybrid drive system 8, by making hair by the fast speed of the fundamental wave rotating excitation field than making the excitation of stator 10
Motivation 2 rotates, and the mechanical energy of engine 2 can be delivered into drive shaft 5 by electromagnetic coupled.
In the hybrid drive system 8, make engine 2 stop without making internal rotor 30 rotate EV patterns when, control
Opened for the excitation coil 32 of internal rotor 30, thus do not produce braking moment, can the efficient hybrid drive system of component.
As shown in figure 11, in the electric rotating machine 1 of the present embodiment, rotating excitation field and outer rotor 20 and the drive shaft of stator 10
5 synchronous rotaries.Internal rotor 30 is when making the HEV mode of the driving of engine 2, using engine 2 with the rotating excitation field than stator 10
Rotation with outer rotor 20 is rotated soon.Thus, regenerative torque is produced in internal rotor 30, work is produced in outer rotor 20
It for the power running torque of anti-torque, can increase the torque of outer rotor 20.
In EV patterns, such as clutch 6 is dissengaged positions, is braked using disk brake 7, and internal rotor 30 is controlled
It is made as not rotating.
In the present embodiment, electric rotating machine 1 is applied to the electric rotating machine of radial gap type, but axle can also be applied to
To the electric rotating machine of clearance type.
Alternatively, it is also possible to be configured to stator arrangement will be provided with the 1st turn of induction coil and magnet exciting coil in radially inner side
Son configures the radial outside in stator, will be provided with radial outside of the 2nd rotor configuration in the 1st rotor of excitation coil.
In addition, the electric current flowed through in the armature coil 12 of stator 10 is not limited to three-phase or more multiphases.Separately
Outside, secondary excitation can also be carried out flowing through electric current in excitation coil 32.Additionally, it is preferred that excitation coil 32 is three-phase Y types
Wiring, but can also be cage type rotor structure.
Although disclosing embodiments of the invention, but it is clear that those skilled in the art can not depart from the scope of the present invention
Changed on ground.Wish all this modifications and equivalent being contained in claim.
Claims (9)
1. a kind of electric rotating machine, possesses：
Stator, it, which has, concentrates coiled armature coil, and the armature coil produces armature flux；
Outer rotor, its configure said stator radially inner side, above-mentioned armature flux by when rotate；And
Internal rotor, it configures the radially inner side in above-mentioned outer rotor,
Above-mentioned outer rotor has the multiple external tooths for being wound with induction coil and magnet exciting coil, and above-mentioned induction coil is by above-mentioned armature line
The higher harmonic component of magnetic flux caused by circle produces induced-current, above-mentioned magnet exciting coil above-mentioned induced-current by when produce
Magnetic field,
Above-mentioned internal rotor has the multiple internal tooths for being wound with excitation coil, and above-mentioned excitation coil is by the above-mentioned electricity by aforementioned external teeth
Pivot magnetic flux and in magnetic flux excitation caused by above-mentioned magnet exciting coil.
2. electric rotating machine according to claim 1,
In aforementioned external teeth, in radially inner side formed with relative with the outer radial periphery face of above-mentioned internal rotor across defined space
Flange part.
3. according to the electric rotating machine described in claim 1 or claim 2,
In aforementioned external teeth, above-mentioned induction coil is wound with said stator side, above-mentioned excitation is wound with above-mentioned internal rotor side
Coil.
4. according to the electric rotating machine described in claim 1 or claim 2,
Above-mentioned outer rotor has the bridge portion that will be connected between adjacent aforementioned external teeth,
In aforementioned external teeth, the radial outside in above-mentioned bridge portion is wound with above-mentioned induction coil, the radially inner side in above-mentioned bridge portion
It is wound with above-mentioned magnet exciting coil.
5. electric rotating machine according to claim 4,
Above-mentioned outer rotor has the induction pole extended in above-mentioned bridge portion to radial outside,
The above-mentioned induction coil of a side of the above-mentioned induction pole in adjacent aforementioned external teeth is wound in and it is wound in adjacent above-mentioned
Extend between the above-mentioned induction coil of the opposing party in external tooth, and extend to than above-mentioned outer rotor outer radial periphery face in the inner part
Assigned position.
6. electric rotating machine according to claim 5,
Above-mentioned outer rotor has the The lid component that above-mentioned induction coil is covered from radial outside,
Above-mentioned The lid component has the fastener for extending to radially inner side and being connected with above-mentioned induction pole.
7. electric rotating machine according to claim 3,
Above-mentioned outer rotor has the bridge portion that will be connected between adjacent aforementioned external teeth,
In aforementioned external teeth, the radial outside in above-mentioned bridge portion is wound with above-mentioned induction coil, the radially inner side in above-mentioned bridge portion
It is wound with above-mentioned magnet exciting coil.
8. electric rotating machine according to claim 7,
Above-mentioned outer rotor has the induction pole extended in above-mentioned bridge portion to radial outside,
Above-mentioned induction pole is located at the above-mentioned induction coil for the side being wound in aforementioned external teeth and is wound in adjacent aforementioned external teeth
In the opposing party above-mentioned induction coil between, and extend to the outer radial periphery face predetermined bits in the inner part than above-mentioned outer rotor
Put.
9. electric rotating machine according to claim 8,
Above-mentioned outer rotor has the The lid component that above-mentioned induction coil is covered from radial outside,
Above-mentioned The lid component has the fastener for extending to radially inner side and being connected with above-mentioned induction pole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-138565 | 2016-07-13 | ||
| JP2016138565A JP2018011424A (en) | 2016-07-13 | 2016-07-13 | Rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107623418A true CN107623418A (en) | 2018-01-23 |
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ID=60783079
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710566695.3A Withdrawn CN107623418A (en) | 2016-07-13 | 2017-07-12 | Electric rotating machine |
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| Country | Link |
|---|---|
| JP (1) | JP2018011424A (en) |
| CN (1) | CN107623418A (en) |
| DE (1) | DE102017211576A1 (en) |
| FR (1) | FR3054086A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108270334B (en) * | 2018-02-11 | 2023-09-29 | 南京航空航天大学 | Non-overlapping winding block type double-rotor electro-magnetic flux switching motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1572052A (en) * | 2002-03-01 | 2005-01-26 | 荷兰应用科学研究会(Tno) | Electromechanical converter |
| JP2011194967A (en) * | 2010-03-18 | 2011-10-06 | Toyota Central R&D Labs Inc | Power transmission device |
| WO2012081374A1 (en) * | 2010-12-17 | 2012-06-21 | アイシン精機株式会社 | Multiple rotor-type electric motor |
| JP2015104238A (en) * | 2013-11-26 | 2015-06-04 | 株式会社デンソー | Double stator type rotary electric machine |
| CN106130278A (en) * | 2015-05-07 | 2016-11-16 | 铃木株式会社 | Electric rotating machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4693865B2 (en) | 2007-08-27 | 2011-06-01 | 株式会社豊田中央研究所 | Power transmission device |
-
2016
- 2016-07-13 JP JP2016138565A patent/JP2018011424A/en active Pending
-
2017
- 2017-07-06 DE DE102017211576.9A patent/DE102017211576A1/en active Pending
- 2017-07-10 FR FR1756506A patent/FR3054086A1/en active Pending
- 2017-07-12 CN CN201710566695.3A patent/CN107623418A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1572052A (en) * | 2002-03-01 | 2005-01-26 | 荷兰应用科学研究会(Tno) | Electromechanical converter |
| JP2011194967A (en) * | 2010-03-18 | 2011-10-06 | Toyota Central R&D Labs Inc | Power transmission device |
| WO2012081374A1 (en) * | 2010-12-17 | 2012-06-21 | アイシン精機株式会社 | Multiple rotor-type electric motor |
| JP2015104238A (en) * | 2013-11-26 | 2015-06-04 | 株式会社デンソー | Double stator type rotary electric machine |
| CN106130278A (en) * | 2015-05-07 | 2016-11-16 | 铃木株式会社 | Electric rotating machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018011424A (en) | 2018-01-18 |
| FR3054086A1 (en) | 2018-01-19 |
| DE102017211576A1 (en) | 2018-01-18 |
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