• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a rotary electrical machine (10) comprising at least one stator (20) and at least two rotors (40), which are arranged on either side of the stator (20) along an axis of rotation (X) of the machine, - said at least one stator (20) having teeth (21) and coils (22) disposed on the teeth, and - each of said at least two rotors (40) having two coaxial rotor plates ( 42a, 42b) with each other, each having claws arranged to interact magnetically with the teeth (21) of the stator, the claws of a frame being arranged circumferentially alternately with the claws of the other armature.
    公开号:FR3026246A1
    申请号:FR1458838
    申请日:2014-09-18
    公开日:2016-03-25
    发明作者:Jacques Saint-Michel
    申请人:Moteurs Leroy Somer SA；
    IPC主号:
    专利说明:

    [0001] The present invention relates to the field of rotating electrical machines, and more particularly that of rotating axial flow electrical machines. By "axial flow", it should be understood that the flow is oriented in the gap formed between the rotor and the stator in a direction parallel to an axis of rotation of the machine, in contrast with a so-called radial flow machine, in which the flow flows between the rotor and the stator in a direction perpendicular to the axis of rotation of the machine. Radial flow claw machines are known, for example from US Pat. No. 7,791,244, US Pat. No. 7,608,972 and US Pat. No. 7,466,057. The invention concerns alternators as well as motors.
    [0002] The invention is more particularly concerned with rotating electrical machines comprising an excitation winding, and whose inductive flux can be adjusted as required by means of an adjustable direct current which supplies it. The invention thus relates to a rotating electrical machine comprising at least one stator and at least two rotors, which are disposed on either side of the stator along an axis of rotation of the machine, - said at least one stator comprising teeth and coils disposed on the teeth, and - each of said at least two rotors comprising two cylindrical and coaxial rotor armatures with each other, each carrying claws arranged to interact magnetically with the teeth of the stator, no. with the magnetic flux passing in a direction parallel to the axis of rotation of the machine, the claws of a frame being arranged circumferentially alternately with the claws of the other frame. The claws preferably face the stator teeth along the axis of rotation of the machine. Thus, the magnetic flux is oriented in the gap formed between the rotor and the stator in a direction substantially parallel to the axis of rotation of the machine. "Alternately circumferentially arranged" means that when one moves circumferentially around the axis of rotation of the machine, one successively encounters a claw attached to a cylindrical rotor armature of a rotor, then a claw attached to the other cylindrical rotor frame of the same rotor, which is coaxial with the first armature.
    [0003] Stator The stator windings are preferably each wound around the winding axis parallel to the axis of rotation of the machine. The stator teeth may each be of substantially prismatic general shape, comprising for example, in cross-section taken perpendicularly to the axis of rotation of the machine, two portions of concentric circles connected by two radii. The windings of the stator may be of corresponding shape. The stator teeth have a front face facing the claws of each of the rotors. Said faces are preferably flat and extend perpendicular to the axis of rotation of the machine. The stator may comprise at least 6 teeth, for example 6, 8 or 12 teeth, or even more. The teeth of the stator can be attached to an annular stator reinforcement The teeth can be made in one piece with this annular stator reinforcement, or alternatively be held on by any means such as for example gluing, welding, screwing, assembly, by example by dovetails, this list not being limiting. The teeth may be formed of a stack of sheets, held together by any means such as gluing, snapping, riveting and attached to the annular stator frame for example by screwing. The sheets can be stacked along a stack axis perpendicular to the axis of rotation of the machine. Cutting of the teeth in the sheet stack can be designed to reduce material losses. It is for example performed with the teeth oriented head to tail, so as to avoid falls. At equivalent cost, it can be used to make the teeth a more expensive magnetic material, for example of better quality and more efficient. The teeth may also be made of an isotropic material, such as for example magnetic powders agglomerated by sintering or gluing, or by the addition of metal according to the so-called 3D printing processes. The annular stator reinforcement is preferably non-magnetic. It is for example made of aluminum. Thus, the stator may be devoid of magnetic yoke, which is less expensive. In a variant, the annular stator reinforcement is not non-magnetic. The teeth are configured in such a way that they can protrude from only one side or on either side of the annular stator reinforcement by a distance d which can be between 10 and 200% of the height h. of the measured tooth according to a radius of the machine.
    [0004] The stator teeth may each carry two coils disposed on the corresponding tooth on either side of the annular stator reinforcement, each of the two coils facing one of the two rotors. The teeth of the stator can in particular be attached in their middle to said annular stator reinforcement. The two resulting half-teeth may be of the same size, as well as the windings they carry. The stator may be symmetrical with respect to a plane perpendicular to the axis of rotation of the machine. The windings can be wound on a support intended to be itself threaded on the corresponding tooth. This support is preferably made of electrical insulating material, for example plastic. The stator is preferably concentrated winding, that is to say wound on teeth. The stator winding is multiphase. The number of phases may be at least 3, being for example equal to 3, or greater than 3, for example 5, 7, 11, 13, or 17, or even more. The electrical conductors of the stator windings can be arranged in the corresponding winding "in bulk", or on the contrary being "stored". The windings can be made in the form of distributed windings, for example being distributed in multi-stages, with any number of layers. Such a configuration may be favorable to the reduction of space harmonics related to the winding distribution, as is often the practice in conventional topology machines.
    [0005] The electrical conductors of the stator windings can be made with son of circular cross section, or oblong, the conductor then being called "flat wire". The son used can be insulated at low voltage, being enamelled or even glazed gimped, or medium voltage, being isolated by mica paper for example, or even at very high voltage, being for example made with high voltage cable.
    [0006] Cooling of the coils can be achieved by the gas contained in the machine, for example air, forced convection for example, or not, or alternatively by a liquid circh-, t in coils appropriately included in the windings, or even in the son themselves of the windings, which can then be made with hollow electrical conductors.
    [0007] Said at least one stator may be devoid of claws, unlike rotors. This can be equal for all the stators of the machine, if any. Rotor Each of the rotors may comprise a toroidal excitation coil disposed between the two cylindrical and coaxial rotor armatures. This excitation coil makes it possible to generate a magnetic flux in the cylindrical and coaxial rotor armatures and in the claws which face the stator. This excitation coil is coaxial with the axis of rotation of the machine. An advantage of this configuration is that a single coil is sufficient to power all the poles of the same polarity, resulting in a reduced cost for the machine. In addition, a so-called global excitation machine, that is to say a single excitation coil for all the poles, has the advantage of being less consuming of conductive materials than an excitation machine. distributed such as a machine with salient poles or smooth rotor. Thus, the machine according to the invention makes it possible to combine the advantages of the so-called global excitation machines with those of the axial flow machines. The machine according to the invention is both compact and powerful. The excitation coil may be fixed relative to the stator. In other words, the excitation coil is not rotated, when the cylindrical rotor armatures and the claws are. Thus, the power of the rotor is facilitated. No rotating feeding system is needed. In the invention, the presence of fixed excitation coils facilitates their supply, which can be carried out directly from an external source, such as a battery, an auxiliary network, or withdrawal of the terminals of the machine, this list is not . t not limiting. The excitation current can be adjusted by a suitable fixed electronic device. Each of the rotors may further comprise a fixed ferromagnetic ring arranged to be traversed radially by the inductive magnetic flux. The excitation coil is made integral with this ferromagnetic ring.
    [0008] Each of the rotors may comprise two auxiliary rotor gaps, each of the auxiliary rotor gaps being formed respectively between the ferromagnetic ring of said rotor and one of the cylindrical rotor armatures. The magnetic flux flowing through said rotor crosses the two radial rotor air gaps radially. The two auxiliary rotor gaps are each of cylindrical shape and are coaxial with each other. Alternatively, the excitation coil may be rotated. In this case, it eliminates auxiliary rotor gaps, and the coil is secured to the cylindrical rotor armatures. The performance of the machine can be improved. However, it is necessary to use, for example, brushes, or a rotary excitation machine for supplying the excitation coil. Each of the cylindrical armatures of a rotor may comprise a number of claws 5 equal to half the number of poles of the machine. By "number of pole of the machine" is meant the total number of claws of a rotor facing the stator that is encountered when moving circumferentially around the axis of the machine. The number of poles may be greater than or equal to 4. It may in particular be 4, 6 or 8, or even more. In an alternative embodiment, the number of poles of the machine is 4. The claws attached to the same cylindrical rotor armature can be of the same polarity. All the claws of the same polarity of a rotor can be attached to the same cylindrical rotor armature. All the north polarity claws of a rotor may be attached to a first cylindrical rotor armature. All the south polarity claws of a rotor may be attached to a second cylindrical rotor armature. The two rotors surrounding the stator may be angularly offset with respect to each other. Such a configuration may make it possible to reduce the torque ripples and to allow the cancellation of a space harmonic or to minimize a chosen set of space harmonics. At least one rotor, better each of the two rotors, or all the rotors of the machine, may be devoid of permanent magnets. The rotor or rotors, or all the rotors of the machine, are wound. The term "wound rotor" denotes a rotor comprising at least one coil in which an electric current may circulate capable of creating a magnetic field when the rotor is rotating. This magnetic field flows in the ferromagnetic ring of the rotor, in the cylindrical and coaxial rotor armatures and in the claws of the latter. The machine according to the invention may be devoid of permanent magnets, as explained above. Nevertheless, in an alternative embodiment of the invention, the machine comprises permanent magnets, in particular permanent magnets arranged between the claws of the rotors, in order to make it possible to minimize magnetic flux leakage. These magnets have e direction of circumferential magnetization with respect to the axis of rotation.
    [0009] The structure of the coaxial cylindrical reinforcements of the rotor makes it possible to reach high speeds of rotation. For example, it is possible to achieve a peripheral speed of the rotor of the order of 150 degrees without using any particular precaution. The machine further comprises a shaft driven in rotation about the axis of rotation of the machine, which supports the cylindrical and coaxial rotor armatures of the rotors, and the claws they carry. This shaft is secured to the rotors, and rests by at least one bearing, for example or two bearings, on a housing of the machine, including one or two flanges (s) end of the machine.
    [0010] The two rotors may be entirely symmetrical or substantially symmetrical with respect to each other, relative to a plane perpendicular to the axis of rotation of the machine. The slight lack of symmetry can for example come from the number of bearings po t the shaft of the machine. The rotors may in particular be symmetrical with respect to each other with respect to the magnetic part, namely the cylindrical and coaxial rotor armatures, the claws, the toroidal excitation coils and the ferromagnetic rings, not including possible angular offset. The rotors may further comprise, in order to strengthen the structure of the machine, each two coaxial frames to improve the mechanical transmission and centering on the shaft. One can be arranged between the two cylindrical rotor armatures and the other inside the innermost cylindrical rotor armature, that is to say between the inner cylindrical rotor armature and the shaft of the cylindrical rotor armature. machine. These frames may be non-magnetic, for example aluminum, so as not to disturb the flow of the magnetic flux. The outermost frame, namely that arranged between the two cylindrical rotor armatures, can allow a better cohesion of the machine, which is then said reinforced. At least one or more of the elements of the rotors, chosen from claws, cylindrical rotor armatures and ferromagnetic rings, may be made entirely or in pi 'e by means of one or more solid magnetic materials, for example chosen Among: gray cast iron, spheroidal graphite cast iron, soft magnetic composite materials, otherwise called SMC (soft magnetic composites), cast steel, forged steel, this list is not limiting.
    [0011] Alternatively or additionally, one or more of the elements of the rotors, selected claws, cylindrical rotor housings, ferromagnetic rings, may be wholly or partially laminated, being made by a stack of magnetic sheets. The claws of the rotors can in particular be laminated, being made by a stack of magnetic sheets. The cooling of the excitation coils of the rotor can be achieved in the same way as that of the stator windings, insofar as the rotor excitation coils are fixed and can therefore advantageously be cooled by circulation of fluid, liquid or gas. . Thus, the cooling can be achieved by the gas contained in the machine, for example air, forced convection for example, or not, or alternatively by a liquid circulating in coils appropriately included in the coils or in the wires themselves coils, which can then be made with hollow conductors. Machine The machine according to the invention can constitute a motor. In the case of a motor, the number of poles of the machine may be at least 8, for example 8 or 12. One of the advantages of such a machine is its compactness. Alternatively, the machine can also be a generator. In this case, it may have 4 or 6 poles for example. In an alternative embodiment, the machine 20 comprises for example 4 poles and 6 teeth. The machine can be sealed. Partial vacuum can be provided, for example less than 0.3 bar, or even introduce a light gas, for example hydrogen or helium. This can minimize the aeraulic losses, and thus allow operation at higher speeds, for example, greater than 150 rotated at the peripheral speed of the rotor. The ventilation of the machine can be forced by suction of air into the machine. This suction can be done by the middle of the machine, given its structure with two rotors arranged on either side of the stator. The invention also relates to a rotating electrical machine comprising several machines as described above, each consisting of a stator and two rotors, arranged s -1 common axis of rotation. Such a machine comprises for example two sets each consisting of a stator and two rotors, or even more, for example three or four sets, or even more, depending on the desired electrical or mechanical power. The subject of the invention is a machine comprising three machines according to the invention, each consisting of a stator and two rotors arranged on a common axis of rotation, in which the stator windings are three-phase, with one phase per second. stator. The invention will be better understood on reading the following detailed description of nonlimiting exemplary embodiments thereof, and on examining the appended drawing, in which: FIG. perspective of a machine made according to the invention, - Figures 2 and 3 are exploded perspective views of the machine of Figure 1, - Figure 4 is a more detailed view, - Figures 5 and 6 are views in longitudinal section, respectively in the collected and exploded assembled state, of the machine of FIGS. 1 to 4; FIGS. 7 and 8 are respectively views in the assembled and exploded state, of the rotary presses of the machine; 1 to 6, FIG. 9 is an exploded view in longitudinal section, FIGS. 10 and 11 are views in longitudinal section, respectively in the assembled and exploded state, of the fixed parts of the machine of FIGS. 1 to 9, FIG. 12 is a perspective view of the stator of the machine of FIGS. 1 to 11, FIG. 13 is an exploded view, FIG. 14 illustrates a method of manufacturing the stator teeth, FIG. 15 is a perspective view of a two-stage embodiment variant, FIG. 16 is a view in the assembled state in longitudinal section; FIG. 17 is an exploded perspective view of the machine of FIGS. 15 and 16; FIG. 18 is a more detailed view; FIG. is a perspective view of a two-stage embodiment with central aspiration, - Figure 20 is a longitudinal section, - Figure 21 is an exploded perspective view of the machine of Figures 19 and 20, - FIG. 22 is a perspective view of a two-stage embodiment with central aspiration and reinforced cohesion, FIG. 23 is a longitudinal section, and FIG. 24 is a detailed view thereof. FIGS. 1 to 13 illustrate a rotary electrical machine 10 according to the invention, comprising a stator 20 and two rotors 40, disposed respectively on either side of the stator 20 along the axis of rotation X of the machine. Figures 7 to 9 illustrate the rotating parts of the machine, and Figures 10 to 13 the fixed parts. The stator has teeth 21 and coils 22 disposed on the teeth 21. As can be seen in particular in FIG. 11, the coils 22 are each wound around a winding axis Y parallel to the axis of rotation X of the machine. The stator teeth 21 each comprise two half-teeth. Each half-tooth carries the coil 22. The two half-teeth are disposed on either side of an annular stator reinforcement 24, each of the two coils facing one of the two rotors 40. The half-teeth are example attached by their medium to the frame 24, for example by screwing. We see in Figure 13 the passage holes of the screws, radially oriented. Both half-teeth are the same size, as are the windings they wear. The stator is thus symmetrical with respect to a median plane for the stator, perpendicular to the axis of rotation X of the machine. Each winding is wound on a support 25 disposed on the corresponding half-tooth. This support 25 is preferably made of electrical insulating material, for example plastic. In the example described, the annular stator reinforcement 24 is non-magnetic. The teeth 21 are configured in such a way that they protrude from one side of the annular stator reinforcement 24 by a distance d, which in the example illustrated in FIG. 13 is equal to 100% of the height h of the tooth measured according to a radius of the machine. This distance d can be between 10 and 200% of the height h of the tooth. Alternatively, the teeth could protrude radially on either side of the annular stator reinforcement without departing from the scope of the invention.
    [0012] The teeth 21 are delimited when observed along the X axis by two portions of concentric circles 21a and 21b connected by two rays 21e. The windings 22 are of corresponding shape. The teeth 21 have two main faces 21d each facing a rotor 40. The faces 21d are flat and extend perpendicular to the axis of rotation X of the machine. The stator comprises in the example described 6 teeth, but could include 8 or 12 or more. The teeth 21 may be formed of a stack of sheets, held together by any means. The sheets can be stacked along a stacking axis Z perpendicular to the axis of rotation X of the machine. The cutting of the teeth 21 in the stack of sheets can be performed in such a way as to avoid or at least minimize the losses. It can be performed with the teeth obtained head to tail, so as to cause no or very few falls, as illustrated in FIG. 14. Each of the two rotors 40 comprises two cylindrical and coaxial rotor frames 42a and 42b, one with the other, each having claws 44 arranged axially opposite the teeth 21 of the stator 20, as can be seen in Figure 5. The claws 44 of a rotor face the teeth 21. The claws 44 of a first armature 42a are arranged circumferentially alternately with the claws 44 of the second armature 42b. In other words, when one moves circumferentially around the axis of rotation X of the machine, there is successively a claw 44 attached to the first cylindrical rotor armature 42a of a rotor, then a claw 44 attached to the second armature cylindrical rotor 42b of the same rotor. Each of the rotors 40 further comprises, as can be seen in Figures 6 and 10 no ent, a toroidal excitation coil 50 disposed between the two cylindrical and coaxial rotor frames 42a and 42b. This excitation coil 50 makes it possible to generate a magnetic flux in the cylindrical and coaxial rotor armatures 42a and 42b and in the claws 44 which face the stator 20. This excitation coil 50 is coaxial with the axis of rotation X of the machine. In the example described, the excitation coil 50 is fixed relative to the stator 20. The excitation coil is not rotated, when the cylindrical rotor armatures 42a and 42b and the claws 44 are.
    [0013] Each of the rotors 40 further comprises a ferromagnetic ring 52 also fixed, arranged to be traversed radially by the inductive magnetic flux. The excitation coil 50 is integral with this ferromagnetic ring 52. Two auxiliary rotor gaps 48 are formed respectively between the ferromagnetic ring 52 of the rotor and one of the cylindrical rotor armatures 42a or 42b. The magnetic flux flowing in the rotor passes radially through the two auxiliary rotor gaps 48. The two auxiliary rotor gaps 48 are coaxial. In the example described, each of the cylindrical armatures of a rotor 40 has two claws, the rotors being 4 poles. The number of claws is equal to half the number of poles of the machine. The number of poles may alternatively be greater than 4. It may in particular be 6 or 8, or even more. The rotors advantageously comprise each, as can be seen in particular in FIG. 8, in order to reinforce the structure of the machine, two coaxial frames 49a and 49b making it possible to improve the mechanical transmission and the centering on the shaft 15. 49a is disposed between the two cylindrical rotor armatures 42a and 42b, being adjacent to the excitation coil 50 and takes the form of two coaxial wheels connected by spoke portions. The other 49b is disposed within the inner cylindrical rotor armature 42b, i.e., between the inner cylindrical rotor 42b and the shaft 15 of the machine, and takes the form of two disks arranged side by side. at the end each having two coaxial wheels connected by spokes, the two adjacent disks being connected by a central shell 49c maintained on the shaft 15 between the two adjacent disks. These frames 49a and 49b may be non-magnetic, for example in al 25 so as not to disturb the flow of the magnetic flux. The outermost frame 49a, namely that disposed between the two cylindrical rotor frames, may allow better cohesion of the machine. The two rotors surrounding the stator are in the described example arranged face to face, being non-angularly offset relative to each other. The rotors could also be angularly offset from one another to the other. The machine 10 comprises a shaft 15 integral with the rotors 40, which rests by a bearing 16 on a casing 17 of the machine, in particular an end flange 18. of the machine 10, visible on the fi! c 6. The machine also comprises, disposed on the shaft 15 opposite the end flange 18, a fan 19 housed in a shell 12, driven by the shaft 15. The shell 12 has openings 13 allowing the air outlet, which can enter the machine by grids 14 formed in the end flange 18. In an alternative embodiment illustrated in Figures 15 to 18, and as shown more particularly in Figure 16, the shaft 15 rests by bearings 16 on the housing 17 10 of the machine, and more particularly on the two end flanges 18 of the machine 10. In this case, the ferrule 12 housing the fan 19 is closed on the opposite side to the rotors and the stator by the second end flange 18. As a result, the machine is slightly asymmetrical, this asymmetry being due to the presence of the fan 19 19 on one side of the machine. In another variant embodiment illustrated in FIGS. 19 to 21, the casing 17 comprises two fans 19 arranged at each end of the machine, in ferrules 12 each closed by an end flange 18. In addition, the casing 17 comprises openings 17a, allowing the entry of air into the machine by its center, then the circulation of the air inside the machine for its cooling, and its exit through the openings 13 of the ferrules 12 of share and other of the machine, symmetrically. In another variant embodiment, illustrated in FIGS. 22 to 24, each rotor 40 has bores 43 passing through both the cylindrical rotor armatures 42a and 42b and the two coaxial frames 49a and 49b, in order to receive holding screws 25. nonmagnetic. t to reinforce the cohesion of the rotors 40. We will now describe the operation of the machine. The current flowing in the excitation coils 50 of the rotors 40 and the rotation of the claws 44 of these rotors create a magnetic flux flowing in one of the rotors and then in the stator, namely in the teeth 21 of the latter along an axis substantially parallel to the axis of rotation of the machine, before traveling in the second rotor located on the other side of the stator. In a rotor, the flow circulates claws of a given polarity, which are attached to one of the coaxial rotor armatures 42a, in this coaxial rotor armature 42a, in the ferromagnetic ring 52, before returning to the other armature coaxial rotor 42b and then in the claws of the other polarity, which are attached to this other coaxial rotor armature 42b. Of course, the invention is not limited to the embodiments just described. We can multiply the number of stators. The phrase "having one" should be understood as synonymous with "comprising -1-s. ".
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. A rotary electric machine (10) comprising at least one stator (20) and at least two rotors (40), which are disposed on either side of the stator (20) along the axis of rotation (X) of the machine, - said at least one stator (20) having teeth (21) and coils (22) disposed on the teeth, and - each of said at least two rotors (40) having two coaxial rotor plates (42a, 42b) l one with the other, each carrying claws (44) 10 arranged to interact magnetically with the teeth (21) of the stator, the claws of a frame being arranged circumferentially alternately with the claws of the other frame.
    [0002]
    2. Rotating electrical machine according to the preceding claim, wherein the teeth (21) of the stator (20) are each substantially generally prismatic, having no ent, in cross section taken perpendicular to the axis of rotation of the machine, two portions of concentric circles (21a, 21b) connected by two spokes (21c).
    [0003]
    3. A rotary electric machine according to any one of the preceding claims, wherein the stator teeth (21) (20) are attached to an annular stator reinforcement (24).
    [0004]
    4. Machine according to the preceding claim, wherein the stator teeth each carry two coils (22) disposed on the corresponding tooth on either side of the annular stator frame (24), each of the two windings facing 1 ', two rotors (40). 25
    [0005]
    5. Machine according to any one of the preceding claims, wherein each of the rotors (40) further comprises a toroidal excitation coil (50) disposed between the two cylindrical and coaxial rotor armatures (42a, 42b).
    [0006]
    6. Machine according to the preceding claim, wherein the excitation coil (50) is fixed relative to the stator (20). 30
    [0007]
    7. Machine according to one of the two preceding claims, wherein each of the rotors (40) further comprises a fixed ferromagnetic ring (52) arranged to be traversed radially by the magnetic flux inductor.
    [0008]
    8. Machine according to the preceding claim, wherein each of the rotors (40) comprises two auxiliary rotor gaps (48), each of the auxiliary rotor gaps is formed respectively between the ferromagnetic ring (52) of said rotor and one of the reinforcements cylindrical rotors (42a, 42b).
    [0009]
    9. Machine according to any one of the preceding claims, wherein each of the cylindrical reinforcements (42a, 42b) of a rotor comprises a number of claws (44) equal to half the number of poles of the machine.
    [0010]
    10. Machine according to any one of the preceding claims, wherein the two rotors (40) surrounding the stator (20) are angularly offset relative to each other.
    [0011]
    11. Machine according to any one of the preceding claims, comprising a shaft (15) integral with the rotors (40), which rests with at least one bearing (16), in particular one or two bearings, on a housing of the machine, no one or two flanges (18) end of the machine.
    [0012]
    12. A rotary electric machine, comprising a plurality of machines according to any one of the preceding claims, each consisting of a stator (20) and two rotors (40), arranged on a common axis of rotation (X).
    [0013]
    13. Machine according to the preceding claim, comprising three machines each consisting of a stator and two rotors disposed on a common axis of rotation, wherein the windings of the stators are three-phase, with a phase by stator.
    [0014]
    14. Machine according to any one of the preceding claims, constituting a motor.
    [0015]
    15. Machine according to any one of claims 1 to 13, constituting a generator. 25
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    同族专利:
    公开号 | 公开日
    FR3026246B1|2018-03-30|
    US20160087514A1|2016-03-24|
    EP2999102A2|2016-03-23|
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    法律状态:
    2015-07-31| PLFP| Fee payment|Year of fee payment: 2 |
    2016-03-25| PLSC| Publication of the preliminary search report|Effective date: 20160325 |
    2016-08-31| PLFP| Fee payment|Year of fee payment: 3 |
    2017-08-30| PLFP| Fee payment|Year of fee payment: 4 |
    2018-07-30| PLFP| Fee payment|Year of fee payment: 5 |
    2019-09-30| PLFP| Fee payment|Year of fee payment: 6 |
    2020-08-26| PLFP| Fee payment|Year of fee payment: 7 |
    2021-08-24| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1458838A|FR3026246B1|2014-09-18|2014-09-18|ROTATING ELECTRIC MACHINE COMPRISING AT LEAST ONE STATOR AND AT LEAST TWO ROTORS.|
    FR1458838|2014-09-18|FR1458838A| FR3026246B1|2014-09-18|2014-09-18|ROTATING ELECTRIC MACHINE COMPRISING AT LEAST ONE STATOR AND AT LEAST TWO ROTORS.|
    EP15184624.3A| EP2999102A3|2014-09-18|2015-09-10|Rotary electrical machine comprising at least one stator and at least two rotors|
    CN201510594415.0A| CN105449960B|2014-09-18|2015-09-17|Rotating electric machine including at least one stator and at least two rotors|
    US14/858,814| US9997982B2|2014-09-18|2015-09-18|Rotating electrical machine comprising at least one stator and at least two rotors|
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