• 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 rotor (R) for an electromagnetic motor (M) with axial flow comprising at least one magnet (3) forming a ring, with at least one face of said at least one magnet (3) intended to be vis-à-vis and to delimit an air gap with a magnetic circuit, characterized in that said face of said at least one magnet (3) is of non-planar shape having corrugations. The invention also relates to an electromagnetic motor (M) with such a rotor (R). When the motor (M) has at least two air gaps, the rotor body (R) carries at least one magnet (3) having corrugations on each of its two faces.
    公开号:FR3045233A1
    申请号:FR1502577
    申请日:2015-12-10
    公开日:2017-06-16
    发明作者:Huguette Tiegna；Serghei Savin；Vasile Mihaila；Romain Ravaud
    申请人:Whylot SAS；
    IPC主号:
    专利说明:

    'Rotor of an axial flow electromagnetic motor with at least one corrugated magnet'
    The present invention relates to a rotor of an axial flow electromagnetic motor with at least one corrugated magnet.
    Advantageously but not exclusively, the electric actuator may comprise at least one rotor flanked by two stators. The electric actuator may also comprise a number n of upper rotors flanked by n + 1 stators.
    The present invention finds an advantageous but non-limiting application in an electric motor delivering a high power with a high rotational speed of the rotor while being of a small footprint, which is obtained by the specific characteristics of the rotor according to the present invention.
    An electromagnetic motor comprises at least one stator and at least one rotor, an air gap separating these two elements. The rotor carries at least one permanent magnet, advantageously a series of permanent magnets, while at least one series of winding elements is carried by the stator.
    Conventionally, each of the winding elements comprises a tooth carrying a coil, the tooth being framed on each of its sides by a notch, a good conductor wire being wound on the tooth to form the coil.
    When the series or series of windings are electrically powered, the rotor which is secured to the output shaft of the motor is subjected to a torque resulting from the magnetic field, the magnetic flux created being an axial flow for an axial flow electric actuator .
    The demand for actuators or electric motors that can deliver high power while maintaining a reduced weight and bulk is currently very strong.
    It is known that the power P delivered by an electric actuator is equal to the torque C of the machine that multiplies the angular rotation speed ω of the machine is: P = C. ω
    To increase the power, increase the torque or the angular velocity or rotational speed or both at once.
    High torque motors are thus distinguished from high speed motors. High torque motors are engines that do not necessarily turn fast, but for which the torque value compensates for the low speed of rotation. The so-called powerful engines are those for which the value of the torque is not necessarily very high but which turn fast.
    To obtain a high torque motor, it is necessary to have a magnet surface carried by the rotor and a series of windings on the stator large enough to create a strong torque. This presents some notorious disadvantages.
    The first disadvantage is the weight of such an engine with large magnet and winding surfaces. Such an engine weighs heavily and has a large footprint.
    The second disadvantage is also its price, the price of magnets being high as well as the price of windings frequently made with copper wire.
    These two disadvantages and mainly the first impede the use of electric motors for the propulsion of motor vehicles, since the size and weight of such an engine are very detrimental to its boarding in a motor vehicle for which the reduction of weight and clutter of embedded elements is crucial.
    The third disadvantage of a high torque engine is its cooling since the Joule losses of such an engine are significant.
    Thus, to reduce the size of such an engine by giving it a compact structure, the risk of overheating of the rotor is increased, especially since this rotor comprises a high magnet surface to obtain a high torque. Foucault currents are created in the motor with an increase in the temperature in the motor and possibly a disturbance of the magnetic fluxes created, which also presents the risk of reducing the efficiency of the engine.
    In this case, it is necessary to cool the engine and thus provide a cooling device which increases its weight and size as well as its complexity.
    The main disadvantage of a high rotation speed motor lies in the high probability of detachment of the rotor magnet or magnets as well as at least partial breakage of the rotor. The rotor of such an engine must be able to withstand high rotational speeds.
    In embedded and industrial applications, in addition to reducing the mass and bulk of the engine for optimum efficiency, the reduction of the rebound torque and the variation of the total torque are very important criteria for the accuracy and efficiency of the engine. comfort of operation of the actuator or the motor.
    Indeed, motors or actuators with permanent magnets have the disadvantage of having off a residual torque called detent torque. This relaxation torque, also called cogging torque in English, is due to the magnetic interaction between the permanent magnets of the permanent magnet element, for example the rotor, and the iron present in the winding element, for example the stator, the iron being frequently used for the realization of the teeth and / or walls of the notches of the winding support means. This torque is undesirable for the proper functioning of such an engine.
    The object of the present invention is to overcome the disadvantages mentioned above.
    The present invention makes it possible to meet these criteria in that it makes it possible to reduce the relaxation torque as well as the variation of the total torque. For this purpose, according to the invention, a rotor is provided for an electromagnetic axial flow motor comprising at least one magnet forming a ring, with at least one face of said at least one magnet intended to be facing each other and to delimiting an air gap with a magnetic circuit, characterized in that said face of said at least one magnet is of non-planar shape having corrugations.
    Advantageously, the corrugations form a succession of upper and lower stops, the edges extending substantially in the radial direction of the body.
    Advantageously, each upper edge is interposed between two lower edges by varying a thickness of said at least one magnet in the form of a sinusoid when it is unfolded.
    Advantageously, the sinusoid is of constant period.
    Advantageously, said at least one magnet consists successively of several magnetic poles, each pole being inclined at an angle with respect to an opening of a notch separating two adjacent magnetic poles.
    Advantageously, said at least one magnet disposed on the face or both sides of the body is in the form of a group of magnets formed of a plurality of magnets disposed circularly directly adjacent to each other, the plurality of magnets forming the crown on said at least one face.
    Advantageously, the magnets are in the form of corrugated polygonal tiles connected directly or indirectly to each other by magnet attachment means, the securing means being lateral to the magnets and / or arranged below the magnets.
    Advantageously, the securing means make it possible to maintain the magnets forming a first group of magnets against an associated face of the rotor body or against an associated face formed by another group of magnets in the inverted position relative to the group of magnets. magnets.
    Advantageously, said at least one magnet has a central recess.
    Advantageously, the rotor comprises an output shaft having a shoulder extending perpendicular to the shaft in a central portion of the shaft, the shoulder being housed in the central recess of said at least one magnet.
    Advantageously, said at least one magnet is selected from ferrite magnets, rare earth magnets such as neodymium-iron-boron magnets or samarium cobalt magnets, magnets based on aluminum, nickel and cobalt, with or without thermoplastic binder. The invention relates to an electromagnetic axial flow motor having at least one stator carrying a series of winding elements and at least one rotor carrying said at least one magnet with formation of an air gap between said at least one magnet and the series of winding elements, characterized in that said at least one rotor is a rotor as previously described.
    Advantageously, the motor has at least two air gaps, the body of the rotor carrying at least one magnet having corrugations on the faces vis-à-vis each magnetic circuit. The invention also relates to a motor and / or an electromagnetic generator, characterized in that it comprises such a rotor, the motor or the generator having a reversible operation. Other characteristics, objects and advantages of the present invention will appear on reading the detailed description which follows and with reference to the appended drawings given as non-limiting examples and in which: FIGS. 1 and 1b are schematic representations of an axial sectional view of two respective embodiments of an electromagnetic integrated flow polyentrefers motor, the rotor according to the present invention of this motor carrying to each stator an undulating outer face of at least one magnet, the electromagnetic motor according to this embodiment comprising two stators and a rotor, FIG. 1 showing a magnet without a body and FIG. 1b a magnet with an intercalated body; FIGS. 1a and 1c are diagrammatic representations of a perspective view. of the two respective embodiments of an electromagnetic motor polyentrefers integrated axial flow, the rotor according to the present in This motor has a corrugated outer face of at least one magnet towards each stator, the electromagnetic motor according to this embodiment comprising two stators and a rotor, FIG. 1a showing a magnet without a body and FIG. FIG. 2 is a perspective representation of a one-piece magnet or a group of magnets forming the undulating face of a rotor body according to the present invention, FIG. 3 is a diagrammatic representation of FIG. a front view of a plurality of corrugated magnets forming a ring, this plurality of corrugated magnets being able to be carried by a rotor according to the present invention, while FIGS. 3a and 3b show transverse sections of the ring respectively according to AA and BB as shown in Figure 3.
    The figures are given by way of examples and are not limiting of the invention. They constitute schematic representations of principle intended to facilitate the understanding of the invention and are not necessarily at the scale of practical applications. In particular, the dimensions of the different pieces are not representative of reality.
    Referring to all the figures, in particular to FIG. 1, there is shown a longitudinal view of the electromagnetic motor M having a double air gap having a rotor R with or without iron carrying a single magnet or an air gap relative to each air gap. group of poles or magnets forming a crown.
    As can be seen in particular in FIGS. 1b and 1c, the rotor R can comprise a body 13a supporting the single magnet or the group of magnets on each of its faces, with in the case of a single magnet a groove made. in the single magnet for receiving the body 13a. The body 13a and the magnets or group of poles or magnets 3 on each of the faces of the body 13a are placed between two stators 1.1a having a magnetic circuit 4, 4a and having a series of winding elements 2, 2a, housed in notches 2b.
    In Figures 1 and 1a, a different body of the magnet or group of poles or magnets 3 is not present since the magnet or group of poles or magnets 3 occupies the entire section.
    However, as shown in FIGS. 1b and 1c, in other embodiments, the magnet or group of crown poles or magnets 3 may be carried by a core or support body for the magnet or the group. In the case of a double air gap, such a body 13a carries a magnet or a group of poles or magnets 3 forming a ring opposite each air gap. The assembly formed by the rotor R and the stators 1, 1a is arranged around an output shaft 9 of the motor M secured to the rotor R. Bearings 10 allow a rotational movement of the rotor R and the output shaft 9 about a longitudinal axis of the motor M along which the shaft 9 extends.
    A carcass 11 makes it possible to maintain, protect and assemble the engine parts M. The output shaft 9 of the rotor R has a shoulder 13 extending perpendicular to the shaft 9 in a median portion of the shaft 9 This shoulder 13 is housed in a central recess 12 made in the magnet or group of poles or magnets 3.
    When these are supported by a body 13a, the body 13a may be in the extension of the shoulder 13 and be secured directly with the shoulder 13.
    According to the invention, the rotor R which is intended for an axial flow electromagnetic M motor comprises at least one magnet 3, that is to say a unitary magnet forming a ring or a group of poles or magnets forming a ring.
    At least one face of said magnet 3 or group of poles or magnets 3 is intended to be in facing relation and to delimit an air gap with a magnetic circuit. It is this face of said magnet 3 or group of poles or magnets 3 which, according to the invention, is of non-planar shape with corrugations.
    Taking the embodiment shown in Figures 1 and 1a, the magnet can be unique and integral with corrugations formed on both sides. There may be two magnets each forming a crown with corrugations on one side, the flat and non-corrugated faces of the two magnets being secured to one another. There may be a group of magnets or magnet poles forming a ring-shaped magnet having two corrugated faces or even two groups of magnets or magnet poles each forming a crown-shaped magnet with a magnet. corrugated face and secured to each other by their non-wavy face.
    Taking the embodiment shown in Figures 1b and 1c, the magnet can be unique and integral with corrugations formed on both sides. In this case, this single magnet comprises a groove for receiving a body 13a. There may be two magnets each forming a crown with corrugations on one side, the flat and non-corrugated faces of the two magnets being secured to and by the body 13a. There may be a group of magnets or magnet poles forming a ring-shaped magnet having two corrugated faces with in this case a groove for receiving the body 13a. There may also be two groups of magnets or magnet poles each forming a crown-shaped magnet with a corrugated face and secured by their non-corrugated face to the body 13a interposed between the two groups of magnets or poles of magnets.
    Advantageously, for an electromagnetic motor M with two air gaps, as shown in FIGS. 1, 1a, 1b and 1c, these are the two opposite faces of the ring, intended to delimit a respective air gap of the magnet 3 or the pole group or of magnets 3, which are corrugated.
    The face innermost to the body of the magnet or the group of poles or magnets 3 opposite therefore furthest from the gap and the stator 1, 1a respective is preferably flat to be applied against the body 13a or against a Another magnet or group of poles or magnets 3 back to back with this magnet or group, the corrugations being present only on the outer faces of groups of poles or magnets 3 delimiting an air gap.
    It is possible, however, that the magnet or the group of poles or magnets 3 has corrugations on both sides. This is for example very advantageous when there is only one magnet for two gaps. This can be seen in Figure 1a. Figure 1c shows a magnet or group of poles or magnets corrugated on each side of a body 13a serving as a core.
    As can be seen in FIG. 2, the corrugations on a magnet or a group of poles or magnets 3 can form a succession of upper and lower stops 14. A single stop per type of upper or lower stop is referenced in Figure 3. The lower and upper edges 14, 15 extend substantially radially of the ring formed by the magnet or group of poles or magnets 3.
    Along the same upper or lower edge 14, the magnet or group may retain the same thickness e or the thickness along the same upper or lower edge 14 may decrease the closer one approaches the central portion of the ring formed by the magnet or the group of poles or magnets 3, this central portion being advantageously hollow forming a recess 12.
    Each upper edge 15 may be interposed between two lower edges 14 by varying the thickness e of the magnet or the group of poles or magnets 3 in the form of a sinusoid when it is unfolded. The thickness e of the ring formed by the magnet or the group of poles or magnets 3 taken in respectively in one of the concentric circles centered on the ring may have a sinusoidal shape. This sinusoid is advantageously of constant period.
    FIG. 3 shows a front view of a group of magnet poles 3. The group of magnet poles 3 has substantially a crown shape comprising a central recess 12. This would also be the case for a unit magnet forming a crowned.
    FIG. 3a shows a section along AA and FIG. 3b in a section BB of the group of magnet poles 3 of corrugated polygonal shape to identify the evolution in the thickness e of the ring formed by the magnet or the group. of magnet poles 3 of the ripple between a minimum value 14a and a maximum value 15a respectively corresponding to a lower edge 14 and an upper edge 15.
    The variation of these two values during the rotation of the rotor R makes it possible to reduce the relaxation torque. For the group of magnet poles 3 forming a ring, the direction of the magnetization Alm is parallel to the axis of rotation of the output shaft 9 shown in FIGS. 1 and 1b.
    FIGS. 2 and 3 show a unitary magnet 3 and a group of magnet poles 3 respectively. In FIG. 3, the group of magnet poles 3 is formed of a plurality of magnet poles, one of which only is referenced 3a to this figure. The group 3 with its magnet poles 3a then forms a circular ring on said at least one face. The magnet 3 is then constituted successively of several magnetic poles 3a. Each pole 3a is inclined at an angle β with respect to an opening of a notch 16 separating two adjacent magnetic poles 3a.
    Alternatively, the group of magnets may consist of a succession of magnets. The magnets may be in the form of corrugated polygonal tiles connected together by means of fastening the magnets. The securing means may also be present under the magnets by allowing the magnets forming a first group of magnets 3 to be held against an associated face of the body 13a of the rotor R, when a body is present or against an associated face formed by a another group of magnets in the inverted position with respect to the group of magnets 3.
    The group of magnets 3 can wear a hoop forming a composite material ring, the hoop being provided at the periphery of the group of magnets 3 for its frame. This band can serve essentially to absorb the centrifugal forces.
    When a support body of the group of poles or magnets 3 is present, the group of poles or magnets 3 can extend to the periphery of the face of the group of poles or magnets 3 carrying them or protrude radially from the periphery of said face.
    The hoop can directly surround the edge of the group of magnets 3 outside the rotor R and is therefore in direct contact with the outermost edge of the group of magnets 3.
    The magnets or poles 3a of the group of magnets 3 may be in the form of corrugated polygonal tiles interconnected directly or indirectly by means of the magnets 3. There may be a notch between two adjacent corrugated polygonal tiles.
    Directly means that the wavy polygonal tiles are connected to each other and indirectly means that the wavy polygonal tiles are interconnected by another element, for example the magnet holder body 13a or the inner face of another group of poles or magnets 3. The securing means may be lateral to the magnets 3a and / or arranged below the magnets 3a.
    Magnets in the form of polygonal tiles can take various forms, for example triangular or quadrilateral tiles.
    For a triangular tile, a vertex of the triangle may advantageously point towards the center of the rotor 1. Alternatively, as can be seen in FIG. 3, a lower edge 14 may form an angle β with an edge of a magnet-forming tile. and an upper edge 15 may form an angle Θ / 2 with the same edge of a magnet or magnet pole tile, although the edges of the magnet tiles lie in a radial plane of the crown and the lower edges 14 and 15 are not in this radial plane, for example being inclined with respect to this radial plane or being in a respective parallel plane to this radial plane.
    In another embodiment, the edges and the means for securing the poles 3a or magnets in the form of a tile may respectively correspond to an upper edge 15 or to a lower edge 14.
    The securing means maintain the poles 3a or magnets in the axial direction of the rotor 1 while they leave them a limited clearance in the radial direction allowing it to perform work in compression against the hoop.
    This makes it possible to work the magnet or the magnets in compression rather than in stretching, which is more favorable for their compressive strength which can be ten times greater in compression than in tension. In Figure 3, the magnet poles 3a of a group of poles or magnets 3 are eight in number, which is not limiting.
    It is also possible to keep a separation between the poles or magnets or to use a flange interposed between two adjacent poles or magnets. In the case of a separation branch or flange, the branch or flange is advantageously of a smaller thickness than the magnet so that it is further away from the stator than the magnets and thus there is less magnetic losses. due to the circulation of currents within these branches.
    Each magnet or magnet pole 3a may have a small circular side defining together the central recess 12. This tile may have a larger circular side forming the outermost edge of the group of poles 3a or magnets to the rotor 1 The larger circular sides of the magnets or poles 3a form the outer edge of the group of poles or magnets 3 which may advantageously be in direct contact with the ferrule.
    In one embodiment of the present invention, the securing means may be formed by an adhesive applied between the poles 3a or magnets and the associated face of the body of the rotor R.
    It is also possible that the glue is applied between the poles or magnets and the associated face formed by another group of magnets in the inverted position relative to the group of magnets. The two groups of magnets are then arranged back to back each having a flat surface, the flat surfaces of the two groups of magnets back against each other.
    The glue can be resistant to detachment of each magnet from the group of poles or magnets 3 in the axial direction while having a radial elasticity, in order to allow each pole or magnet a limited play in radial direction allowing it to perform a compression job against the hoop.
    The body 13a, if present, the shoulder 13 and the shaft 9 of the rotor R may be based on iron, iron alloy, titanium, titanium oxide or an alloy containing titanium. Titanium may not be the dominant part of the alloy.
    The hoop may be metal or composite material being formed of fibers or strips selected from glass fibers, carbon fibers, polymeric fibers or minerals.
    The consecutive fibers or bands may be of different nature or size. It may, for example, be mixed with glass fibers of different composition, plastic fibers, for example PEEK, polyaramid or composite fibers. The magnet 3 or each magnet or magnet pole 3a of a group 3 may be chosen from ferrite magnets, rare-earth-based magnets such as neodymium-iron-boron magnets or samarium cobalt magnets, magnets from aluminum, nickel and cobalt base, with or without thermoplastic binder.
    Such a rotor R can be part of an electromagnetic motor M having at least one stator 1.1a carrying a series of winding elements and at least one rotor R carrying at least one magnet 3.
    When said at least one rotor 1 has its two circular faces carrying respectively at least one magnet 3 distributed circularly on its associated face, said at least one rotor 1 is framed on each side by a stator. In this case, the electromagnetic motor M has two air gaps, the body of the rotor R carrying on each of its two faces at least one magnet or a group of magnets 3 having corrugations. This is visible in FIGS. 1, 1a, 1b and 1c. The invention is in no way limited to the described and illustrated embodiments which have been given by way of example only.
    权利要求:
    Claims (12)
    [1" id="c-fr-0001]
    1. Rotor (R) for an electromagnetic motor (M) axial flow comprising at least one magnet (3) forming a ring, with at least one face of said at least one magnet (3) intended to be vis-à- screw and to delimit an air gap with a magnetic circuit, characterized in that said face of said at least one magnet (3) is of non-planar shape having corrugations.
    [2" id="c-fr-0002]
    2. Rotor (R) according to claim 1, wherein the undulations form a succession of upper (15) and lower (14) stops, the edges (14, 15) extending substantially towards the center of the formed crown. by said at least one magnet (3).
    [3" id="c-fr-0003]
    3. Rotor (R) according to the preceding claim, wherein each upper edge (15) is interposed between two lower edges (14) by varying a thickness (e) of said at least one magnet (3) in the form of a sinusoid when it is unfolded.
    [4" id="c-fr-0004]
    4. Rotor (R) according to the preceding claim, wherein the sinusoid is of constant period.
    [5" id="c-fr-0005]
    5. Rotor (R) according to any one of claims 1 to 4, wherein said at least one magnet is constituted successively of several magnetic poles (3a), each pole (3a) being inclined at an angle (β) by relative to an opening of a notch (2b) located at the stator (1, 1a) and housing the winding elements (2, 2a).
    [6" id="c-fr-0006]
    6. Rotor according to any one of claims 1 to 4, wherein said at least one magnet (3) disposed on the face or both sides of the body is in the form of a group of magnets (3) formed of a plurality of magnets arranged circularly directly adjacent to each other, the plurality of magnets forming the ring on said at least one face.
    [7" id="c-fr-0007]
    7. Rotor (R) according to the preceding claim, wherein the magnets are in the form of corrugated polygonal tiles interconnected directly or indirectly by the magnets joining means, the securing means being lateral to the magnets and / or arranged in below the magnets.
    [8" id="c-fr-0008]
    8. Rotor (R) according to the preceding claim, wherein the securing means (16) serve to maintain the magnets forming a first group of magnets (3) against an associated face of the body (13a) of the rotor (R) or against an associated face formed by another group of magnets in the inverted position relative to the group of magnets (3) or against a body (13) in the case of a single magnet having two corrugated faces located in vis-à-vis the magnetic circuit.
    [9" id="c-fr-0009]
    9. Rotor (R) according to any one of the preceding claims, wherein said at least one magnet (3) has a central recess (12).
    [10" id="c-fr-0010]
    10. Rotor (R) according to the preceding claim, wherein the rotor (R) comprises an output shaft (9) having a shoulder (13) extending perpendicular to the shaft (9) in a median portion of the shaft (9), the shoulder (13) being housed in the central recess (12) of the at least one magnet (3).
    [11" id="c-fr-0011]
    11. Rotor (R) according to any one of the preceding claims, wherein said at least one magnet (3) is selected from ferrite magnets, rare earth magnets such as neodymium iron boron magnets or magnets. samarium cobalt, magnets based on aluminum, nickel and cobalt, with or without thermoplastic binder.
    [12" id="c-fr-0012]
    12. Motor and / or electromagnetic generator, characterized in that it comprises a rotor (R) according to any one of the preceding claims, the motor or the generator having a reversible operation.
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2017098094A1|2017-06-15|
    FR3045233B1|2019-01-25|
    ES2774081T3|2020-07-16|
    EP3387742A1|2018-10-17|
    EP3387742B1|2019-11-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS5553164A|1978-10-14|1980-04-18|Sony Corp|Permanent magnet rotor|
    JPS58170347A|1982-03-29|1983-10-06|Kichi Kaiba|Rotor magnet|
    CN103904852A|2014-04-17|2014-07-02|哈尔滨理工大学|Novel permanent magnetic structure outer rotor disc type motor|
    FR3077414A1|2018-01-26|2019-08-02|Whylot Sas|MAGNET UNIT WITH OVID CONFIGURATION AND MAGNET STRUCTURE WITH MULTIPLE UNIT MAGNETS|
    GB2589582B|2019-12-02|2021-12-08|Peter Devereux Christopher|Electrical generator|
    CN112202305B|2020-12-09|2021-04-23|南京贝思特信息科技有限公司|Disc type permanent magnet generator|
    法律状态:
    2016-12-22| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-16| PLSC| Publication of the preliminary search report|Effective date: 20170616 |
    2017-12-12| PLFP| Fee payment|Year of fee payment: 3 |
    2019-11-14| PLFP| Fee payment|Year of fee payment: 5 |
    2020-12-22| PLFP| Fee payment|Year of fee payment: 6 |
    2021-12-13| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1502577|2015-12-10|
    FR1502577A|FR3045233B1|2015-12-10|2015-12-10|ROTOR OF AN AXIAL FLUX ELECTROMAGNETIC MOTOR HAS AT LEAST ONE WAVED FORM MAGNET|FR1502577A| FR3045233B1|2015-12-10|2015-12-10|ROTOR OF AN AXIAL FLUX ELECTROMAGNETIC MOTOR HAS AT LEAST ONE WAVED FORM MAGNET|
    ES16816325T| ES2774081T3|2015-12-10|2016-12-06|Rotor of a Waveform Monoblock Magnet Axial Flux Electromagnetic Motor|
    EP16816325.1A| EP3387742B1|2015-12-10|2016-12-06|Rotor of an axial-flow electromagnetic motor having a corrugated-shape integral magnet|
    PCT/FR2016/000203| WO2017098094A1|2015-12-10|2016-12-06|Rotor of an axial-flow electromagnetic motor having a corrugated-shape integral magnet|
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