WO2003012954A2 - Machine electrique avec stator a poles griffes - Google Patents
Machine electrique avec stator a poles griffes Download PDFInfo
- Publication number
- WO2003012954A2 WO2003012954A2 PCT/FR2002/002726 FR0202726W WO03012954A2 WO 2003012954 A2 WO2003012954 A2 WO 2003012954A2 FR 0202726 W FR0202726 W FR 0202726W WO 03012954 A2 WO03012954 A2 WO 03012954A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electric machine
- machine according
- annular
- crowns
- carcass
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
- H02K1/243—Rotor cores with salient poles ; Variable reluctance rotors of the claw-pole type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/227—Heat sinks
Definitions
- the present invention relates to an electric machine with zero sequence structure comprising an external stator and an internal rotor of the same axis housed in a carcass, the stator consisting of at least one electric coil of annular shape carried by a magnetic annular yoke comprising at least two poles offset angularly at equal distance from each other, these poles being constituted by lugs integral with said annular yoke and folded parallel to said axis.
- the stator consists of one or more radial rings, coaxial with the rotor and each consisting of a stack of several coaxial magnetic sheets. These sheets are cut so as to have tabs on their internal wall. These legs are folded back to form the electric poles of the stator. They also define notches in which an electrical coil is placed.
- This construction method requires cutting a large number of sheets, stacking them, pressing them and bending them to form the legs. When the legs are folded, the sheets slide between them, modifying the geometry of the legs. It is then necessary to make a recovery on a machining machine which increases the manufacturing cost.
- annular coils are carried by an annular coil support itself carried by an annular yoke formed by two symmetrical radial rings carrying opposite the claws forming the poles.
- This motor must include a magnetic outer casing to close the flow, which complicates and makes the construction of such a motor more expensive.
- the publication US-A-5 808 390 describes a motor having a structure reversed with respect to that of the invention, namely that the stator is internal and disposed within 1 "of an annular external rotor.
- the stator consists of a single coil annular carried by an annular cylinder head formed by two identical and symmetrical crowns, but whose teeth are arranged outside and the indexing means are arranged inside. This particular construction method does not allow the same type of engine to be produced than that of the invention.
- the present invention aims to overcome these drawbacks by proposing an electrical machine of simple and economical construction, of rapid and easily achievable assembly on automatic lines for large series, which can also be easily recycled, having a reduced size for increased performance. , making it possible to offer a wide range of electric motors and very easily create multi-phase machines which are difficult to produce usually.
- the invention relates to an electric machine of the kind indicated in the preamble, characterized in that the magnetic annular yoke consists of two identical rings, each ring having at least one annular wall from which extends radially at least one side wall from which extends axially one of the legs forming one of the poles, these two rings being assembled face to face so as to define between they have a closed annular housing for receiving said electric coil and angularly offset so as to precisely position said poles.
- the crowns can be made from a ferromagnetic material transformed by means of at least one of the techniques chosen from the group comprising at least molding, pressing, sintering, injection, machining, cutting. , stamping.
- this ferromagnetic material is a magnetic metallic powder made up of electrically isolated iron particles. In another embodiment, this ferromagnetic material is in the form of one or more superimposed sheets.
- the crowns of the same cylinder head can be assembled by at least one of the techniques chosen from the group comprising at least interlocking, clipping, riveting, screwing, welding.
- the two crowns advantageously include indexing means arranged to angularly offset these crowns by a predetermined angle during their assembly.
- indexing means may include at least one hollow shape on one of the crowns and at least one relief shape on the other crown, these shapes being complementary for fitting together when the two crowns are assembled.
- indexing means may also include at least one indexing lug provided on each ring and arranged to cooperate with at least one axial groove provided in said carcass, the angular offset between two consecutive axial grooves being equal to the angular offset of the two crowns .
- the two rings and said electrical coil are stacked in said carcass and held axially clamped by elastic means and thus form a dismountable assembly.
- This assembly method makes it possible to produce an electric machine comprising at least two coaxial magnetic annular yokes, separated by at least one non-magnetic spacer.
- it may include phase shifting means arranged to angularly offset the annular yokes relative to one another and create a phase shift.
- phase shifting means may include said axial grooves in said carcass and said pins provided on each ring, the grooves being angularly offset by a value corresponding to said phase shift.
- phase shifting means can also include said spacer, the latter being provided on each of its radial faces, opposite each cylinder head, an imprint of shape complementary to that of the corresponding cylinder head, the imprints of the two faces of said spacer being offset angularly a value corresponding to said phase shift.
- the spacer comprises at least one cooling circuit, this cooling circuit possibly being peripheral, the inlet and outlet of which are arranged diametrically on the same side or diametrically opposite.
- the carcass may include the electrical connections to connect the electrical coils and the fluid connections to connect the cooling circuits.
- FIG. 1 is an exploded perspective view of an electric machine according to the invention
- FIG. 2 is a perspective view of the machine of FIG. 1,
- FIG. 3 is a view in axial section of the machine of FIG. 1,
- FIG. 4 is a front view of a crown of the machine of FIG. 1,
- FIG. 5 is a sectional view of the crown of FIG. 4,
- FIGS. 6A and 6B are schematic views of a spacer of the machine of FIG. 1, comprising a cooling circuit,
- FIGS. 7A and 7B are respectively a front view and a sectional view of an alternative embodiment of the crown of FIG. 4, and
- FIGS. 8A and 8B are views similar to FIGS. 7A and 7B of another alternative embodiment of the crown of FIG. 4.
- the electric machine 1 with zero sequence structure comprises an external stator 2 and an internal rotor 3 of axis A, housed in a carcass 4.
- This electric machine 1 constitutes for example an electric motor whose general shape is cylindrical.
- the carcass 4 is, in the example shown, consisting of a cylindrical body 40, closed at each end by a cover 41, 42 provided with a bore 43, 44 in which is mounted a bearing 45, 46 for guiding the rotor 3 in rotation.
- This carcass 4 can be made of a non-magnetic material such as copper, aluminum, synthetic materials.
- the rotor 3 is, in this example, constituted by a cylindrical shaft 30 surrounded by a magnetic sleeve 31 and extended at its ends by shaft portions 32, 33 of smaller diameter intended to be housed in the bearings 45, 46.
- the stator 2 is, in the example illustrated by FIG. 2, constituted by three magnetic annular yokes 20 each supporting an electric coil of annular shape (not shown), each yoke / coil assembly defining a phase.
- the six yokes 20 are mounted coaxially with the rotor 3 and separated from each other by a washer forming a spacer 5.
- the spacers 5 must be made of a non-magnetic material and resistant to high temperatures.
- the cylinder heads 20 have a pair number of poles 21. These poles 21 are angularly offset at equal distance from each other and oriented axially at a defined distance from the rotor 3 to constitute the air gap.
- the cylinder heads 20 and the spacers 5 are axially clamped by elastic means 6 provided at least on one side of the carcass 4.
- elastic means 6 may consist of a compression spring or a stack of Belleville® washers or any other equivalent means provided between an end cylinder head 20 and the corresponding cover 42.
- each magnetic yoke 20 has six poles 21 and is formed of two hollow crowns 22, identical and assembled face to face so as to define an annular housing 23 therebetween closed to receive an electric coil (not shown).
- the electric coil consists of a simple winding of a conductive wire, with one or more turns, easily achievable on an automatic winding machine. It is then simply positioned in the annular housing 23 without any other particular manipulation.
- Each ring 22 carries a number of poles 21 co ⁇ espondant to half the number of poles of the annular yoke. Consequently, the two rings 22 are assembled after having been angularly offset so as to place the poles 21 in staggered rows and ensure precise angular positioning between them.
- Figure 4 only a ring 20 is shown with its three poles 21 but the three poles 21 of the other complementary ring are drawn in dotted lines to demonstrate that the arrangement of these poles 21 resembles that of a conventional electric machine synchronous or asynchronous.
- These rings 22 can be made of any pressed magnetic material, sintered, injected, molded, machined, cut, stamped, etc. These rings 22 are advantageously produced by molding under very high pressure of a sintered magnetic metal powder and in particular of a powder consisting of electrically insulated iron particles such as for example the Somaloy® 500 or 550 powder.
- a sintered magnetic metal powder and in particular of a powder consisting of electrically insulated iron particles such as for example the Somaloy® 500 or 550 powder.
- the fact that the cylinder head 20 or consisting of two identical rings 22 allows the production of a single manufacturing mold. Furthermore, this molding manufacturing process makes it possible to obtain parts ready to be assembled without resuming machining.
- the iron particles used have the advantage of being electrically isolated, eliminating the currents induced in the cylinder head 20.
- the material obtained after molding is an isotropic material which makes it possible to obtain very good properties, both mechanical and magnetic.
- Each ring 22 consists of an annular wall 27 whose outside diameter is slightly less than the inside diameter of the carcass 4. From this annular wall 27 extends radially three side walls 24, from which extend axially three legs 25 forming three poles 21.
- the axial length of the legs 25 is for example substantially equal to twice the axial length of the annular wall 27 so that the poles 21 cover the thickness of the yoke 20.
- the axial length of the 25 legs can be upper or lower.
- the internal diameter of each ring 22 is delimited by the tabs 25 and is slightly greater than the diameter of the rotor 3 to provide the air gap.
- the two crowns 22 comprise indexing means 26 arranged to angularly offset these crowns 22 by a predetermined angle during their assembly.
- These indexing means comprise, in the example shown, two diametrically opposite indexing pins 26, oriented axially and in relief outside the annular wall 27. These indexing pins 26 are provided for sliding in grooves axial 47 shown in FIG. 2, provided in the carcass 4. The angular offset between two consecutive axial grooves 47 is equal to the angular offset between the two crowns 22 forming a yoke 20.
- other indexing means 26 can be provided such as for example a hollow shape provided on one of the crowns 22 and a relief shape provided on the other crown 22, these shapes being complementary to fit together when the two crowns 22 are assembled.
- FIGS. 7 and 8 illustrate other embodiments of the more economical rings 22 ′, 22 ", in particular made of cut and stamped ferromagnetic sheets.
- each ring 22 ′, 22" is obtained by superposition and pressing of three sheets.
- this number of sheets is not limiting and may be equal to at least one sheet depending on the characteristics of the engine to be produced and the thickness of the sheets.
- the two rings 22 'of the same cylinder head 20 are assembled by interlocking at their annular wall 27.
- the axial length of the annular walls 27 of the rings 22' is substantially equal to that teeth 21.
- Teeth 21 can have a constant thickness over their entire axial length or on the contrary a decreasing thickness, the teeth formed in each sheet having different lengths. This construction makes it possible to modify the characteristics of the magnetic flux and therefore the characteristics of the motor.
- the two crowns 22 "of the same cylinder head 20 are assembled by riveting, screwing or welding.
- the annular walls 27 of the crowns 22" each have an external flange 28 allowing this type of assembly.
- the outer flanges 28 may or may not have orifices 29 for receiving rivets, screws or any other equivalent assembly member.
- the mounting method of the electric machine 1 according to the invention is simplified to the maximum thanks to the design of the various component parts.
- the dimensions of these parts and the number of electrical coils, cylinder heads 20 and poles 21 are determined as a function of the characteristics of the machine that it is desired to obtain, such as its torque, its speed, its load, its size, etc.
- the assembly of the various component parts is obtained by simple alternating stacking of the rings 22, electric coils and spacers 5 around the rotor 3 and in the carcass 4.
- the connecting wires of the electric coils can be grouped tangentially and brought back to one of the covers 41 , 42 which includes the electrical connection terminals. They can also cross the carcass 4 radially towards the electrical connection terminals provided on this carcass 4.
- the electrical coils can be connected to each other to form a single-phase machine or supplied separately to form a multi-phase machine.
- the yokes 20 of these electric coils are angularly offset with respect to each other to create a phase shift between several electric coils.
- Phase shifting means are therefore provided to create this phase shift when assembling the parts.
- These phase shifting means are, in the example shown, constituted by the axial grooves 47 provided in the carcass 4 and by the pins 26 provided on each ring 22.
- the carcass 4 can thus comprise a defined number of axial grooves 47 distributed regularly within its perimeter, these axial grooves 47 defining both the angular offset between two crowns 22 of the same cylinder head 20, and the phase shift between two consecutive yokes 20.
- Other equivalent means can also be provided to ensure this phase shift.
- One can for example use the spacers 5, each spacer 5 having on each of its radial faces, opposite each cylinder head 20, an imprint of shape complementary to that of the corresponding cylinder head 20, the imprints of the two faces of said spacer 5 being angularly offset by a value co ⁇ espondant to the desired phase shift.
- the electric machine 1 according to the invention is cooled by the circulation of a heat transfer fluid, such as air, water or oil.
- the cooling circuit can be provided either in the carcass 4 even of the electric machine 1 in the form of internal channels distributed over the entire periphery of the carcass 4, or in the spacers 5.
- the spacers 5 are hollow parts defining one or more internal peripheral channels 53 in which the heat transfer fluid can circulate.
- the inlet 51 and the outlet 52 of the cooling circuit 50 are diametrically opposite and the flow rate of the heat transfer fluid is divided, limiting the efficiency of the cooling.
- FIG. 6A the inlet 51 and the outlet 52 of the cooling circuit 50 are diametrically opposite and the flow rate of the heat transfer fluid is divided, limiting the efficiency of the cooling.
- the inlet 51 and the outlet 52 of the cooling circuit 50 are diametrically on the same side and the maximum flow rate of the heat transfer fluid is used, making cooling more efficient.
- the spacers 5 can preferably be connected in series or in parallel in the case of low flow rates imposed by the diameter of the inner peripheral channels 53.
- the connections of the cooling circuit (s) 50 like the electrical connections, can be made radially on the carcass 4 or axially on one of the covers 41, 42. It is clear from this description that the invention achieves the goals set.
- This electric machine 1 has the same characteristics as the transverse flux motors presented by professors WEH, ALAN or others, namely: a mechanical decoupling of the size of the notches and of the coils, which makes it possible to increase the magnetomotive force of the electric machine without changing the size of the notches, .. a torque proportional to the number of poles or legs of the electric machine.
- this electric machine can provide a very large torque either by increasing its number of poles, or by increasing its magnetomotive force, or both, which makes it possible to limit the flow of leaks which would appear if the poles were to be too close to each other.
- this electric machine therefore makes it possible to create electric motors producing a high torque at low speed but also at high speed, for example greater than 20,000 revolutions per minute.
- These electric motors can therefore be used in all applications requiring a high torque whatever the speed such as for example rail traction in direct drive (high torque and low speed), automobile traction (high torque over a wide speed range from 0 to 8,500 revolutions per minute), household appliances (high torque and high speed).
- This electric machine also makes it possible to obtain an exceptional compactness and a reduced bulk compared to traditional synchronous or asynchronous rotating electrotechnical machines.
- the realization of the stator in stackable annular yokes offers wide possibilities for creating very easily polyphase machines that are difficult to produce usually, such as the wheel motor.
- the fact of assembling the parts making up the electric machine according to the invention only by stacking and se ⁇ é mounting, without gluing or other means of final fixing, allows easy disassembly and simple recycling at the end of life. Since the coils are not interleaved or glued to the cylinder heads, the sorting of materials can be carried out quickly and economically. In addition, the electrical and fluid connections are concentrated on the carcass to facilitate disassembly.
- the invention makes it possible to produce an electrical machine of “normal” structure, that is to say with an inner rotor and an outer stator. It also makes it possible to produce an electrical machine with a “double” structure, that is to say with a stator and a zero sequence rotor therefore comprising one or more coils whose flux is rectified and channeled towards the armature by the particular shape of the stator. and the rotor. This arrangement could be used in high power machines in order to replace the permanent magnets with an induction coil.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2002341032A AU2002341032A1 (en) | 2001-07-30 | 2002-07-30 | Homopolar electric machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR01/10240 | 2001-07-30 | ||
| FR0110240A FR2828027A1 (fr) | 2001-07-30 | 2001-07-30 | Machine electrique a structure homopolaire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2003012954A2 true WO2003012954A2 (fr) | 2003-02-13 |
| WO2003012954A3 WO2003012954A3 (fr) | 2004-02-26 |
Family
ID=8866115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2002/002726 Ceased WO2003012954A2 (fr) | 2001-07-30 | 2002-07-30 | Machine electrique avec stator a poles griffes |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2002341032A1 (fr) |
| FR (1) | FR2828027A1 (fr) |
| WO (1) | WO2003012954A2 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8362662B2 (en) | 2007-08-07 | 2013-01-29 | Spal Automotive S.R.L. | Electric machine having a heat dissipating construction |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI353705B (en) * | 2005-08-26 | 2011-12-01 | Hoeganaes Ab | An electric rotary machine |
| JP4604064B2 (ja) * | 2007-06-19 | 2010-12-22 | 日立オートモティブシステムズ株式会社 | 車両用交流発電機及び回転電機 |
| FR2969409B1 (fr) * | 2010-12-21 | 2018-05-25 | Sintertech | Machine electrique tournante a structure homopolaire dite double. |
| FR2969857B1 (fr) * | 2010-12-22 | 2013-12-20 | Francecol Technology | Perfectionnements aux moteurs homopolaires. |
| FR3000851B1 (fr) | 2013-01-09 | 2015-02-13 | Eurocopter France | Machine electrique a plusieurs entrefers et flux magnetique 3d |
| FR3000852B1 (fr) | 2013-01-09 | 2015-02-13 | Eurocopter France | Machine electrique avec pieces intermediaires a plusieurs entrefers et flux magnetique 3d |
| FR3024607A1 (fr) | 2014-07-31 | 2016-02-05 | Francecol Technology | Machine homopolaire composee |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB867659A (en) * | 1959-01-22 | 1961-05-10 | Venner Ltd | Improvements in or relating to self-starting synchronous electric motors |
| FR88608E (fr) * | 1965-05-12 | 1967-03-03 | Renault | Alternateur à aimant tournant et à tension réglable, notamment applicable à la commande de transmission de puissance sur automobiles |
| DE3024674C2 (de) * | 1980-06-30 | 1982-07-29 | Siemens AG, 1000 Berlin und 8000 München | Statoranordnung eines Kleinmotors, insbesondere eines Klauenpol-Schrittmotors |
| US5334899A (en) * | 1991-09-30 | 1994-08-02 | Dymytro Skybyk | Polyphase brushless DC and AC synchronous machines |
| US5808390A (en) * | 1992-11-10 | 1998-09-15 | Seiko Epson Corporation | Brushless DC motor |
| US5677580A (en) * | 1993-11-08 | 1997-10-14 | Sl Montevideo Technology, Inc. | Transversal-flux permanent magnet motor |
| DE29500878U1 (de) * | 1994-06-24 | 1995-10-19 | Siemens AG, 80333 München | Elektrische Wechselspannungsmaschine mit einem dauermagneterregten Läufer |
| AT504016A1 (de) * | 1998-03-03 | 2008-02-15 | Bombardier Transp Gmbh | Transversalflussmaschine |
| GB2353145A (en) * | 1999-08-09 | 2001-02-14 | Sunonwealth Electr Mach Ind Co | Multiphase motor with stator phase adjustment |
-
2001
- 2001-07-30 FR FR0110240A patent/FR2828027A1/fr active Pending
-
2002
- 2002-07-30 WO PCT/FR2002/002726 patent/WO2003012954A2/fr not_active Ceased
- 2002-07-30 AU AU2002341032A patent/AU2002341032A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8362662B2 (en) | 2007-08-07 | 2013-01-29 | Spal Automotive S.R.L. | Electric machine having a heat dissipating construction |
| US8896168B2 (en) | 2007-08-07 | 2014-11-25 | Spal Automotive S.R.L. | Electric machine having a heat dissipating construction |
| KR101559894B1 (ko) | 2007-08-07 | 2015-10-13 | 스팔 오토모티브 에스.알.엘. | 전기기기 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2828027A1 (fr) | 2003-01-31 |
| AU2002341032A1 (en) | 2003-02-17 |
| WO2003012954A3 (fr) | 2004-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2564491B1 (fr) | Machine electrique tournante en particulier pour un demarreur de vehicule automobile | |
| EP3104501B1 (fr) | Rotor pour machine electrique tournante | |
| EP3347976A1 (fr) | Stator de machine electrique tournante a taux de remplissage optimise | |
| WO2003012954A2 (fr) | Machine electrique avec stator a poles griffes | |
| EP1661230A1 (fr) | Machine electrique tournante polyphasee telle qu'un alternateur ou alterno-demarreur, notamment pour vehicule automobile | |
| WO2024132599A1 (fr) | Stator de machine électrique à flux axial | |
| WO2024132600A1 (fr) | Stator de machine électrique à flux axial | |
| EP4073909A1 (fr) | Flasque pour machine électrique tournante | |
| WO2016146908A1 (fr) | Rotor de machine electrique tournante a aimants permanents | |
| FR3087962A1 (fr) | Moteur electrique a courant continu sans balai avec un couple de crantage reduit et son procede de fabrication | |
| EP3607640A1 (fr) | Rotor pour machine électrique à aimants permanents internes | |
| WO2017216488A1 (fr) | Machine electrique tournante munie d'une zone de decouplage mecanique | |
| WO2021099533A1 (fr) | Machine électrique tournante avec blocage axial du stator | |
| EP3347974A1 (fr) | Stator de machine electrique tournante a performances magnetiques ameliorees | |
| EP3347977A1 (fr) | Machine electrique tournante a inertie reduite | |
| FR3041182A1 (fr) | Machine electrique tournante a entrefer optimise | |
| WO2016146909A1 (fr) | Rotor de machine electrique tournante a configuration d'aimants permanents optimisee | |
| FR2809240A1 (fr) | Machine electrique homopolaire et procede de fabrication d'une telle machine | |
| FR2837632A1 (fr) | Machine electrique a dent distincte de support d'un enroulement et vehicule automobile correspondant | |
| WO2017042487A9 (fr) | Stator de machine electrique muni d'un isolant d'encoche surmoule | |
| WO2017042485A1 (fr) | Stator de machine électrique tournante a épaisseur de culasse optimisée | |
| EP1113564A1 (fr) | Machine électrique tournante dont le stator et/ou le rotor comporte des évidements périphériques | |
| FR2995738A1 (fr) | Stator pour machine electrique tournante muni d'un circuit de refroidissement et machine electrique tournante correspondante | |
| EP3977601A1 (fr) | Machine electrique tournante munie d'une chambre de refroidissement | |
| FR3162326A1 (fr) | Rotor à aimants permanents |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ OM PH PL PT RU SD SE SG SI SK SL TJ TM TN TR TZ UA UG US UZ VN YU ZA ZM |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG US Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| 32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 69(1) EPC |
|
| 32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT R69(1) (EPO FORM 1205 MAILED ON 27.08.04) |
|
| 122 | Ep: pct application non-entry in european phase | ||
| NENP | Non-entry into the national phase |
Ref country code: JP |
|
| WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |