EP4062436A1 - Transformateur rotatif et machine tournante comportant un tel transformateur rotatif - Google Patents
Transformateur rotatif et machine tournante comportant un tel transformateur rotatifInfo
- Publication number
- EP4062436A1 EP4062436A1 EP20820489.1A EP20820489A EP4062436A1 EP 4062436 A1 EP4062436 A1 EP 4062436A1 EP 20820489 A EP20820489 A EP 20820489A EP 4062436 A1 EP4062436 A1 EP 4062436A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- primary
- housing
- coil
- notch
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/12—Two-phase, three-phase or polyphase transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
Definitions
- Rotary transformer and rotating machine comprising such a rotary transformer
- the invention relates to the field of rotary transformers and rotary machines comprising such a transformer.
- the subject of the invention is more particularly an optimized compact rotary transformer and a rotary machine comprising such a rotary transformer.
- a rotary transformer 2 is a transformer for transferring electrical energy between two rotating parts 4, 5 with respect to each other, such as between a stator part 5 and a rotor part 4 of a rotary machine 1.
- This type of transformer in the context of a three-phase rotary transformer 2 and a conventional configuration, comprises:
- the primary body 30 comprises a first , a second and a third notch 31, 32, 33 opening opposite the secondary body 40 and in which are S6875 ° G n
- the secondary body 40 comprises a first, a second and a third secondary notch 41, 42, 43 opening out facing respectively the first, the second and the third primary coil 11, 12, 13.
- the first, the second and the third coil secondary 21, 22, 23 are respectively arranged in the first, the second and the third secondary notch 41, 42, 43.
- document WO 2013/167828 proposes, as illustrated in FIGS. 2 and 3, to optimize the flow coupling by associating the second secondary coil 112, in the form from a first secondary sub-coil 112A and a second primary sub-coil 112B, to each of the first primary coil 111 and the third primary coil 113 and applying a similar configuration to the secondary coils 121, 122, 123.
- the first primary sub-coil 112A and the first primary coil 111 are housed in a first notch 131 of the primary body 130 and the second primary sub-coil 112B and the third primary coil 113 are housed in a second notch 132 of the primary body 130.
- the secondary body 140 has a similar conformation with the first secondary sub-coil 122A and the first secondary coil 121 which are thus housed in a first notch 141 of the secondary body 140 and the second secondary sub-coil 122B and the third secondary coil 123 which are housed in a second notch 142 of the secondary body 140.
- each of the first sub-coil 112A and of the second sub-coil 112B necessarily has the same number of turns as the first primary coil 111 and that the third primary coil 113.
- the first and second sub-coils 112A, 112B have a thickness 2h double the thickness h of the first and third primary coils 111, 113, this for an identical axial dimension L between the first and second primary sub-coils 112A, 112B and the first and third primary coils 111, 113.
- the object of the invention is to solve the above drawback and thus aims to provide a three-phase rotary transformer which is optimized and which can be electrically balanced while retaining the reduced dimensions offered by the three-phase rotary transformers of the art. prior.
- the invention relates to a three-phase rotary transformer comprising:
- the secondary body being concentric with the primary body so that one of the primary body and the secondary body is free to rotate around the other among the primary body and the secondary body by rotating around the axis of revolution, the second primary coil comprising at least a first and a second primary sub-coil and the second secondary coil comprising at least a first and a second secondary sub-coil, S6875 ° G n
- the primary body comprises a first primary notch and a second primary notch each having an opening emerging facing the secondary body and the secondary body comprises a first secondary notch and a second secondary notch each having an opening emerging facing respectively the first primary notch and the second primary notch
- the first and the second primary notch each comprise a first annular housing and a second annular housing successive radially from the opening of said notch primary
- the first and the second secondary notch each comprising a first annular housing and a second annular housing successive radially from the opening of said secondary notch
- the first primary notch housing the first primary sub-coil and the first primary coil
- the first prim sub-coil area being arranged in one of the first and the second housing of the first primary notch
- the first primary coil being arranged in the other of the first and the second housing of the first primary notch
- the second primary notch housing the second primary sub-coil and the third primary coil
- second housing which houses a secondary sub-coil has an axial dimension greater than the other housing among the first and second housing.
- first, second and third primary coils have the same resistance and that the first and second primary sub-coils and the first and third primary coils have the same resistance. same number of turns.
- the dimension radial of these same housings of each of the sub-coils, and therefore of the sub-coils is less than twice that of the housings of the first and third primary coils, and therefore of these same primary coils.
- the first and second primary sub-coils can each be housed in the respective first housing of the first and second primary notches, the first and second secondary sub-coils each being housed in the respective first housing of the first and second secondary notch.
- Such a configuration allows easy manufacture of the rotary transformer according to the invention.
- Each of the first and second housings of each of the first primary notch, the second primary notch, the first secondary notch and the second secondary notch may further have an axial dimension, the housing among the first and second housing of each.
- first and second primary notches housing a sub-coil of the second primary coil having:
- the flux balance factor can be determined so as to balance the currents between the first, second and third primary coils and between the first, second and third secondary coils.
- Such balancing can in particular be done so as to obtain a current difference between each of the phases of the primary and between each of the phases of the secondary of less than 5%, or even 2% and even more advantageously less than or equal to 1%.
- the first and the second housing of the first and of the second primary notch can be arranged in a cavity of said primary notch, S6875 ° G n
- cavities of the first and second primary notch each having an axial dimension equal to the axial dimension of the housing of said primary notch among said first and said second housing which houses a primary sub-coil and comprising a wall made of ferromagnetic material so as to axially delimit the other housing among said first and said second housing, in which the first and the second housing of the first and of the second secondary notch are arranged in a cavity of said notch, said cavities of the first and of the second secondary notch each having an axial dimension equal to that of the housing among said first and said second housing which accommodates a secondary sub-coil and comprising a wall of ferromagnetic material so as to axially delimit the other housing among said first and said second housing.
- the primary body may have:
- the secondary body having:
- the invention further relates to a rotating machine comprising a stator, a rotor and a transformer according to the invention and the primary body being included in one of the stator and the rotor, the secondary body being included in the other of the stator and rotor.
- Such a rotating machine benefits from the advantages associated with the transformer according to the invention which equips it.
- the rotating machine can be a turbomachine.
- the primary body may be included in the stator, the secondary body being included in the rotor, and the first, second and third secondary coils supplying a circuit for defrosting the blades of at least one of an inlet sleeve and an outlet nozzle of the turbomachine.
- Such a turbomachine in particular in this application to the blade de-icing circuit, particularly benefits from the improvement in the balancing of the currents of the phases of the secondary, and those of the phases of the primary, while maintaining the dimensions contained in the art. prior.
- FIG. 1 illustrates a schematic sectional view of a three-phase rotary transformer of prior art
- FIG. 2 illustrates a schematic sectional view of a three-phase rotary transformer according to a proposal by the inventors not included within the scope of the invention, S6875 ° G n
- FIG. 3 illustrates the association of the primary and secondary coils of a three-phase rotary transformer according to the common configuration between the proposal of the inventors illustrated in FIG. 2 and according to the invention
- FIG. 4 illustrates in schematic sectional view a three-phase rotary transformer according to a first embodiment of the invention
- FIG. 5 illustrates the distribution of the magnetic flux for respectively a three-phase rotary transformer according to the proposal of the inventors illustrated in FIG. 2 and a rotary transformer three-phase according to the first embodiment of the invention
- FIG. 6 illustrates the variation of the current transmitted in each of the secondary coils as a function of a so-called magnetic flux balancing factor
- FIG. 3 illustrates the association of the primary and secondary coils of a three-phase rotary transformer according to the common configuration between the proposal of the inventors illustrated in FIG. 2 and according to the invention
- FIG. 4 illustrates in schematic sectional view a three-phase rotary transformer according to a first embodiment of the invention
- FIG. 5 illustrates the distribution of the magnetic flux for respectively
- FIG. 7 illustrates in a schematic sectional view -axial a rotary transformer according to a second embodiment of the invention
- Figure 8 illustrates in schematic sectional view semi-axial a rotary transformer according to a third embodiment of the invention.
- Identical, similar or equivalent parts of the different figures bear the same numerical references so as to facilitate the passage from one figure to another.
- the different parts shown in the figures are not necessarily on a uniform scale, to make the figures more readable.
- Figures 3 and 4 illustrate a three-phase rotary transformer 202 according to a first embodiment, Figure 3 illustrating the association and winding of a first, second and third primary coil 211, 212, 213 with first, second and third secondary coils 221, 222, 223 and FIG. 4 illustrating the conformation of such a three-phase rotary transformer 202.
- Such a three-phase rotary transformer 202 generally equips a rotary machine 201 such as an engine or a turbomachine and allows energy transfer. S6875 ° G n
- a three-phase rotary transformer 201 comprises: the first, the second and the third primary coil 211, 212, 213, corresponding respectively, and for example, to a first, a second and a third phase of a power supply circuit,
- a first, a second and a third secondary coil 221, 222, 223 corresponding respectively to the first, second and third primary coils 211, 212, 213, said first, second and third secondary coil 221, 222, 223 corresponding respectively, and by example, to a first, a second and a third phase of a load circuit to be supplied with current,
- the primary body 230 being included in the stator 205 and the secondary body 240 being included in the rotor 204.
- the second primary coil 212 comprises a first and a second primary sub-coil 212A, 212B and the second secondary coil 222 comprising a first and a second secondary sub-coil 222 A, 222B.
- the primary body 230 comprises a first primary notch 231 and a second primary notch 232 each having an opening opening opposite the secondary body 240.
- the secondary body 240 comprises a first secondary notch 241 and a second secondary notch 242 each having a S6875 ° G n
- the first primary notch 231 accommodates the first primary sub-coil 212A, and the first primary coil 211 while the second primary notch accommodates the second primary sub-coil 212B, and the third primary coil 213 .
- first secondary notch 241 accommodates the first secondary sub-coil 222A, and the first secondary coil 221 while the second secondary notch accommodates the second secondary sub-coil 222B, and the third secondary coil 223.
- each of the first and second primary notches 231, 232 and of the first and second secondary notches 241, 242 has a toroidal shape of rectangular section.
- the first and second primary notches 231, 232 each comprise a first annular housing 231A, 232A and a second annular housing 231B, 232B succeeding one another radially from the opening of said primary notch 231, 232.
- the first housing 231A and the second housing 231B of the first primary notch 231 respectively house the first primary sub-coil 212A and the first primary coil 211.
- the first housing 232A and the second housing 232B of the second primary slot 232 respectively house the second primary sub-coil 212B and the third primary coil 213.
- the first and second secondary notches 241, 242 each comprise a first annular housing 241A, 242A and a second annular housing 241B, 242B succeeding one another radially from the opening of said secondary notch 241, 242.
- the first housing 241A and the second housing 241B of the first secondary notch 241 respectively house the first S6875 ° G n
- the second primary sub-coil 212B and the third primary coil 213 magnetically coupled with the second secondary sub-coil 222B and the third secondary coil 223.
- the magnetic fluxes of the first primary sub-coil 212A and the first primary coil 211 are coupled and the magnetic fluxes of the second primary sub-coil 212B and the third primary coil 213 are coupled.
- the magnetic coupling being thus optimized, it is possible to reduce the dimensioning and the mass of the primary and secondary bodies 230, 240.
- the direction of the windings of the first primary sub-coil 212A and the first primary coil 211 is identical and opposite to that of the second primary sub-coil 212B and the third primary coil 213.
- the direction of the windings of the first secondary sub-coil 222A and of the first secondary coil 221 is identical and opposite to that of the second secondary sub-coil 222B and of the third secondary coil 223.
- the first, second and third primary coils 211, 212, 213 having to present a substantially identical resistance and the first and second sub-coils 212A, 212B and the first and third coils 211, 213 having the same number of turns in order to ensure a identical transformation ratio for each of the phases, the sizing of the first and second primary sub-coils 212A, 212B is S6875 ° G n
- WO 2021/099743 PCT / FR2020 / 052129 adapted so that the section of the conductor forming the turns of the first and second primary sub-coils 212A, 212B has a surface area doubled with respect to that of the section of the conductor forming the turns of the first and third primary coils 211, 213.
- the dimensioning of the first and second secondary sub-coils 222A, 222B is adapted so that the section of the conductor forming the turns of the first and second secondary sub-coils 222A, 222B has a surface area doubled with respect to that of the section of the conductor forming the turns of the first and third primary coils 221, 223.
- 231A, 231B, 232A, 232B, 241A, 241B, 242A, 242B of the first and second primary notch 231, 232 and of the first and second secondary notch 241, 242 has a rectangular half-axial section with an axial length LA, LB, forming an axial dimension of said housing, and a radial height h A , he forming a radial dimension of said housing.
- the first housing 231A, 232A has an axial dimension L A , that is to say say the axial length greater than this same dimension, that is to say the axial length, of the second housing 231B, 232B of the first and the second primary notch 231, 232.
- the first housing 241A, 242A has an axial dimension L A , that is to say the axial length greater than this same dimension, that is to say axial length, of the second housing 241B, 242B of the first and the second secondary notch 241, 242.
- WO 2021/099743 15 PCT / FR2020 / 052129 document WO 2013/167828 would be housed in a housing having an axial dimension identical to that of the first or of the corresponding third coil 111, 113. It is therefore possible, in accordance with the invention, to balance the leakage magnetic fluxes of the first and second primary sub-coils 212A, 212B with the leakage fluxes of the first and third primary coils 211, 213 and to balance the fluxes leakage of the first and second secondary sub-coils 222A, 222B with the leakage flows of the first and third secondary coils 221, 223.
- FIG. 5 shows, in the form of two axial half-sections, the magnetic flux lines 301, 302, 303, 304 calculated by the inventors according to a finite element calculation for respectively a three-phase rotary transformer 102 according to document WO 2013/197828 illustrated in FIG. 2, shown at the top of FIG. 5, the main magnetic fluxes being referenced 301 and the leakage magnetic fluxes being referenced 302, and a three-phase rotary transformer 202 according to the first embodiment of the invention illustrated in FIG. 4, shown at the bottom of FIG. 5, the main magnetic fluxes being referenced 303 and the leakage magnetic fluxes being referenced 304.
- FIG. 5 thus makes it possible to show the evolution of the leakage flows between the configuration of the prior art, corresponding to that of document WO 2013/197828, shown on the upper part and the configuration of the invention shown on the lower part .
- the leakage flow lines 302 of the coils 111A and 121A are in the majority with respect to the leakage flow lines 301 of the coils 112 and 122 respectively.
- the leakage flow lines 303 of the coils 211A and 221A are reduced with respect to the coils 212 and 222
- the axial and radial dimensions L A , h A of the first housings 231A, 241A and the axial and radial dimensions LB, he of the second housings 231B, 241B comply with the following equations:
- a so-called magnetic flux balancing factor r strictly greater than 1 is by respecting the following conditions for the first housings 231A, 232A, 241A, 242A, of each of the notches 231, 232, 241, 242: - an axial dimension LA which is equal to r 2 times the axial dimension LB of the second housing 231B, 232B, 241B, 242B of said notch 231, 232 , 241, 242, and - a radial dimension LI A which is equal to 2 / r 2 times the radial dimension he of the second housing 231B, 232B, 241B, 242B of said notch 231, 232, 241, 242.
- the inventors have simulated the variation in the intensity 311, 312, 313 of the current flowing in each of the primary phases for a transformer according to the invention as a function of the magnetic flux balancing factor.
- the curve 311 corresponds to the primary phase associated with the first primary coil 211
- the curves 312 and 313 corresponding respectively to the primary phases associated respectively with the second and the third primary coil 212, 213.
- the value of the flux balancing factor was varied from 5 until a good balance between the phases was obtained which was obtained at 7.5. It can be seen that for the value of the magnetic flux balancing factor r lowest, that is to say equal 5, the current of the primary phase associated with the first primary coil 211 is 25.6 A then that those of the primary phases associated respectively with the second and the third primary coil 212, 213 are respectively 25.2 A and 25.15 A. However, for a magnetic flux balancing factor, the currents of each of the primary phases are substantially identical and equal to 24.58 A.
- FIG. 7 illustrates a three-phase rotary transformer 202 according to a second embodiment in which each of the primary and secondary notches 231, 232, 241, 242 have a constant axial length over its entire radial height, the housings 231B, 232B, 241B, 242B of these notches 231, 232, 241, 242 corresponding to the first and third primary coils 211, 213 and secondary coils 221, 223 being delimited by means of a respective wall 233 made of ferromagnetic material.
- a three-phase rotary transformer 202 according to this second embodiment differs from a three-phase rotary transformer 202 according to the first embodiment by the shape of the primary 231, 232 and secondary 241, 242 slots and by the fact that the latter have a wall 233 respectively limiting their second housing 231B, 232B, 241B, 242B.
- the first and second housing 231A, 231B, 232A, 232B, 241A, 241B, 242A, 242B of the first and second primary notch 231, 232 and of the first and second secondary notch 241, 242 are arranged in a cavity of said primary notch 231, 232 or secondary 241, 242 corresponding.
- Said cavities of the first and second primary notch 231, 232 and of the first and second secondary notch 241, 242 each have an axial dimension L A , that is to say an axial length, equal to the dimension axial L A , that is to say an axial length, of the first housing 231A, 232A, 241A, 242A of said primary notch 231, 232 or secondary 241, 242.
- Each of the primary and secondary notches 231, 232, 241, 242 thus further comprises the wall 233 made of ferromagnetic material so as to axially delimit the second housing 231B, 232B, 241B, 242B.
- FIG. 8 illustrates a three-phase rotary transformer 202 according to a third embodiment in which the primary body 230 and the secondary body 240 each have a central part 234, 244 dimensioned to fully house the second housings 231B, 232B, 241B, 242B of each first and second notches 231, S6875 ° G n
- a three-phase rotary transformer 202 according to this third embodiment differs from a three-phase rotary transformer 202 according to the first embodiment in that the primary body 230 and the secondary body 240 each have a central part 234, 244 and two axial shoulders. 235, 245.
- the primary body 230 has:
- central part 234 dimensioned axially to fully fit the second housings 231B, 232B of the first and second primary notches 231, 232, the first housings 231A, 232A of the first and second primary notches 231, 232 being partially fitted in said central part 234,
- first and a second axial shoulder 235 extending axially and respectively on either side of the central part 234 and dimensioned to provide part of a first housing 231A, 232A corresponding to the first and the second primary notch 231, 232 which is not arranged in the central part 234.
- the secondary body 240 has:
- central part 244 sized axially to fully fit the second housings 241B, 242B of the first and second secondary notches 241, 242, the first housings 241A, 242A of the first and second secondary notches 241, 242 being partially fitted in said central part 244,
- a first and a second axial shoulder 245 extending axially and respectively on either side of the central part 244 and dimensioned to provide part of a first housing 241A, 242A corresponding to the first and S6875 ° G n
- the first housing 231A, 232A, 241A, 242A of each notch 231, 232, 241, 242 is a housing which accommodates a sub-coil 212A, 212B, 222A, 222B of the second corresponding coil 212, 222, the second housing 231B, 232B, 241B, 242B being a housing which accommodates a corresponding coil 211, 213, 221, 223, it is also possible, within the framework of the invention, that the role of the first and second housings 231A, 231B, 232A, 232B, 241A, 241B, 242A, 242B is reversed.
- the first housing 231A, 232A, 241A, 242A accommodates a coil among the first and third corresponding coils 211, 213, 221, 223 and the second housing 231B , 232B, 241B, 242B houses a sub-coil 212A, 212B, 222A, 222B of the second corresponding coil 212, 222.
- the rotating machine 201 may be a turbomachine, the first, second and third primary coils being respectively connected to a first, second and third phase of a three-phase supply circuit of the turbomachine. comprising an alternator of said turbomachine, the first, second and third secondary coils being respectively connected to a first, a second and a third phase of a charging circuit of the turbomachine, such as a blade defrosting circuit, such as of the blades of the air sock of the turbomachine.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1912975A FR3103308B1 (fr) | 2019-11-20 | 2019-11-20 | Transformateur rotatif et machine tournante comportant un tel transformateur rotatif |
| PCT/FR2020/052129 WO2021099743A1 (fr) | 2019-11-20 | 2020-11-19 | Transformateur rotatif et machine tournante comportant un tel transformateur rotatif |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4062436A1 true EP4062436A1 (fr) | 2022-09-28 |
| EP4062436B1 EP4062436B1 (fr) | 2023-06-14 |
Family
ID=69903315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20820489.1A Active EP4062436B1 (fr) | 2019-11-20 | 2020-11-19 | Transformateur rotatif et machine tournante comportant un tel transformateur rotatif |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12518915B2 (fr) |
| EP (1) | EP4062436B1 (fr) |
| CN (1) | CN114830271B (fr) |
| FR (1) | FR3103308B1 (fr) |
| WO (1) | WO2021099743A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3148215B1 (fr) | 2023-04-25 | 2025-03-14 | Safran Aircraft Engines | Dispositif de stockage d’énergie, système de propulsion et aéronef associés |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04326709A (ja) * | 1991-04-26 | 1992-11-16 | Matsushita Electric Ind Co Ltd | 回転トランス |
| CA2109652A1 (fr) * | 1992-11-25 | 1994-05-26 | Richard J. Becker | Dynamoteur |
| US6388548B1 (en) * | 1999-04-28 | 2002-05-14 | Tokin Corp. | Non-contact transformer and vehicular signal relay apparatus using it |
| US8269590B2 (en) * | 2008-04-14 | 2012-09-18 | Aker Engineering & Technology As | Rotary transformer |
| US7808352B2 (en) * | 2009-03-05 | 2010-10-05 | Schleifring Medical Systems Usa | Wire winding device for a high power level transformer |
| FR2990556B1 (fr) * | 2012-05-09 | 2014-05-30 | Hispano Suiza Sa | Transformateur tournant triphase a flux lies libre |
| FR2990559B1 (fr) * | 2012-05-10 | 2015-05-01 | Hispano Suiza Sa | Transformateur tournant triphase cuirasse magnetiquement a trois noyaux magnetiques |
| FR2990558B1 (fr) | 2012-05-10 | 2014-05-30 | Hispano Suiza Sa | Transformateur tournant triphase-diphase |
| FR2990557B1 (fr) | 2012-05-10 | 2015-05-01 | Hispano Suiza Sa | Transformateur tournant triphase cuirasse magnetiquement |
| FR2994762B1 (fr) * | 2012-08-23 | 2015-11-20 | Hispano Suiza Sa | Transformateur tournant triphase-diphase a connexion scott |
-
2019
- 2019-11-20 FR FR1912975A patent/FR3103308B1/fr active Active
-
2020
- 2020-11-19 WO PCT/FR2020/052129 patent/WO2021099743A1/fr not_active Ceased
- 2020-11-19 CN CN202080086546.7A patent/CN114830271B/zh active Active
- 2020-11-19 US US17/777,867 patent/US12518915B2/en active Active
- 2020-11-19 EP EP20820489.1A patent/EP4062436B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP4062436B1 (fr) | 2023-06-14 |
| CN114830271A (zh) | 2022-07-29 |
| US12518915B2 (en) | 2026-01-06 |
| CN114830271B (zh) | 2026-04-28 |
| WO2021099743A1 (fr) | 2021-05-27 |
| US20230018527A1 (en) | 2023-01-19 |
| FR3103308A1 (fr) | 2021-05-21 |
| FR3103308B1 (fr) | 2021-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2960355B1 (fr) | Machine electrique rotative a resistance magnetique amelioree | |
| CA2872711C (fr) | Transformateur tournant triphase a flux lies libre | |
| EP3304706B1 (fr) | Machine électrique tournante avec un stator à encoches fermées et plus particulièrement machine électrique synchrone à réluctance variable assistée d'aimants permanents | |
| FR2623949A1 (fr) | Moteur et groupe moteur | |
| FR2795568A1 (fr) | Machine electrique rotative comportant un enroulement reduit et procede de fabrication de celle-ci | |
| EP2847774A1 (fr) | Transformateur tournant triphase cuirasse magnetiquement a trois noyaux magnetiques | |
| CA2882190C (fr) | Transformateur tournant triphase-diphase a connexion scott | |
| EP4062436B1 (fr) | Transformateur rotatif et machine tournante comportant un tel transformateur rotatif | |
| EP3104501B1 (fr) | Rotor pour machine electrique tournante | |
| FR2872643A1 (fr) | Chemise de refroidissement pour une machine rotative et machine rotative comportant une telle chemise de refroidissement | |
| EP2847772A1 (fr) | Transformateur tournant triphase cuirasse magnetiquement | |
| FR2664837A1 (fr) | Poste de soudure a moteur perfectionne. | |
| FR2990558A1 (fr) | Transformateur tournant triphase-diphase | |
| EP4073909A1 (fr) | Flasque pour machine électrique tournante | |
| EP3457531B1 (fr) | Stator externe d'une machine electrique comprenant des bobinages, des passages de fluide de refroidissement et un frette | |
| FR3062254B1 (fr) | Stator bobine pour machine electrique tournante | |
| FR2931318A1 (fr) | Machine electrique tournante avec aimants incorpores au rotor | |
| WO2023111188A1 (fr) | Machine électrique tournante munie d'une chambre de refroidissement à configuration optimisée | |
| EP3566289A1 (fr) | Stator bobiné pour machine électrique tournante | |
| WO2017037389A1 (fr) | Rotor pour machine electrique tournante | |
| FR3099859A1 (fr) | Machine électrique pour une hybridation d’un aéronef | |
| WO2024208971A1 (fr) | Machine électrique synchrone à inducteur à griffes fixe | |
| WO2021013743A1 (fr) | Stator bobiné pour une machine électrique tournante | |
| FR2905205A1 (fr) | Machine electrique a stator muni de griffes et de bobinages deportes. | |
| BE406971A (fr) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20220517 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20230327 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BELFKIRA, RACHID Inventor name: DUVAL, CEDRIC ARNAUD HENRI |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602020012600 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1579831 Country of ref document: AT Kind code of ref document: T Effective date: 20230715 |
|
| REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20230614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230914 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1579831 Country of ref document: AT Kind code of ref document: T Effective date: 20230614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230915 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231014 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231016 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231014 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602020012600 Country of ref document: DE |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| 26N | No opposition filed |
Effective date: 20240315 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231119 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231119 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |
|
| REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20231130 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231119 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231119 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231130 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20201119 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20201119 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230614 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20251118 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20251125 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20251125 Year of fee payment: 6 |