EP3257142A1 - Herstellungsverfahren einer wicklung um einen ausspringenden pol für eine synchronmaschine - Google Patents
Herstellungsverfahren einer wicklung um einen ausspringenden pol für eine synchronmaschineInfo
- Publication number
- EP3257142A1 EP3257142A1 EP16700414.2A EP16700414A EP3257142A1 EP 3257142 A1 EP3257142 A1 EP 3257142A1 EP 16700414 A EP16700414 A EP 16700414A EP 3257142 A1 EP3257142 A1 EP 3257142A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductor
- sub
- conductors
- rotor
- coil
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/095—Forming windings by laying conductors into or around core parts by laying conductors around salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/06—Embedding prefabricated windings in machines
- H02K15/062—Windings in slots; salient pole windings
- H02K15/064—Windings consisting of separate segments, e.g. hairpin windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/26—Synchronous generators characterised by the arrangement of exciting windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/527—Fastening salient pole windings or connections thereto applicable to rotors only
Definitions
- the invention relates to a method for producing a rotor for a synchronous machine, which is suitable for a rotational speed of more than 1000 U / min, comprising at least one exciter coil, wherein the at least one exciter coil each having at least two windings, which consists of several parallel electrically Conductive connected rectangular sub-conductors exist.
- the invention further relates to a rotor for a synchronous machine, which can be produced with such a method.
- the invention relates to a synchronous machine having at least one such rotor.
- Rotating electrical machines are designed for example as Syn ⁇ chronmaschinen, in particular a three-phase synchronous machines.
- Such three-phase synchronous machines can be operated, for example, as a motor or as a generator.
- the rotor which is also called rotor, permanent magnets or electromagnets have.
- the rotor permanent magnets in particular at its outer periphery is used, then one speaks of a permanently excited synchronous machine, with a limited mechanical strength re ⁇ consulted from the use of permanent magnets.
- a high speed can occur due to the then very strong centrifugal forces lead to a detachment or deformation of the surface permanent magnets.
- an electromagnet is used on the rotor, this is called a synchronous machine excited by the outside.
- a conductor of the electromagnet must provide the necessary
- European Patent EP 1 287 601 B1 discloses a winding for a stator or rotor of an electrical machine with an iron body with grooves, which is constructed at least partially from L-shaped molded parts.
- one leg of an L-shaped molded part forms a slot in ei ⁇ ner groove bar and the other leg lying on a front side of the stator or rotor connector ⁇ merge.
- French Patent Application FR 2 299 754 A1 discloses a superconducting field winding for the rotor of a turbogenerator.
- the invention has for its object to provide a method for
- a method for producing a rotor for a synchronous machine which is suitable for a rotational speed of more than 1000 U / min, comprising at least one excitation coil, wherein the at least one excitation ⁇ coil each having at least two turns, which from consist of several parallel electrically conductively connected rectangular-shaped sub-conductors, wherein the excitation coil with a continuous winding and soldering process is produced such that the plurality of parallel rectangular sub-conductors are first loosely assembled together to form an overall conductor, then the overall conductor is wound into a exciter coil and the sub-conductors of the Baclei ⁇ ters directly after the winding continuously to a massive Excitation coil are soldered together with a rigid overall conductor. Furthermore, the object is achieved by a rotor for a synchronous machine, which for a speed of more than
- 1000 U / min is suitable, which can be produced with such a method, comprising at least one Erre ⁇ gerspule, wherein the excitation coil has a plurality of longitudinally electrically conductively connected rectangular sub-conductor ⁇ and wherein each sub-conductor is integrally formed.
- the object is achieved by a synchronous machine which is suitable for a rotational speed of more than 1000 rpm and has at least one such rotor.
- the sub-conductors are soldered together using a soft soldering process. Since the mechanical loads between the parallel rectangular sub-conductors are not very high, a soft soldering process is sufficient to hold them together to form a rigid overall conductor. In this way, cleaning and cleaning work is minimized. With corresponding devices, a complete pole coil with all windings can be produced in a continuous production process.
- the sub-conductors are positioned and / or held together by a forming device during the continuous soldering operation. This ensures that the sub-conductors are precisely positioned and soldered in the desired shape as long as the solder has not yet cooled. As a result of the formation device , the accuracy of the production is increased.
- a forming device Preferably, between the at least two turns one
- Insulation used which has a high voltage resistant electrically insulating plastic, in particular aramid, and which is suitable for insulating the at least two turns against each other. This is particularly advantageous since a compact, high-voltage resistant and low-loss coil can be realized in this way.
- the parallel rectangular-shaped partial conductors are made from standard semifinished products, in particular from copper. These standard semifinished products can be at ⁇ play as rectangular wires. This is advantageous because it can be dispensed with custom-made moldings, resulting in a cost savings.
- a cooling lug is formed from a part of the partial conductor on at least one outer part ⁇ conductor. This increases the surface of the conductor, which has an advantageous effect on the cooling of the excitation coil through which current flows. A lower temperature results in lower Verlus ⁇ th in the excitation coil, because the resistivity of copper increases with temperature.
- the exciting coil is alternately wound with two under ⁇ differently wide copper conductors, a cooling coil and a standard gyrus, the effort of the technical ⁇ rule implementation is considerably less, resulting in a cost savings.
- the cooling vane is formed with a crimping tool.
- the formation of preferably locally arranged at regular intervals cooling vanes with a suitable crimping tool is particularly simple, inexpensive and good repro ⁇ ducible.
- at least a portion of a pole piece and at least a portion of a laminated core of the rotor are made in one piece and the excitation coil is wound directly around the laminated core with the pole piece.
- the windings of the exciter coil have a rounded radius shape at the corners. Since ⁇ through to notch stresses in the corners avoided.
- FIG. 10 shows a cross section of a synchronous machine.
- 1 shows a three-dimensional representation of a rotor 1 of a synchronous machine 29 according to the prior art.
- Such three-phase synchronous motors can be operated, for example, as a motor or as a generator.
- the synchronous machine 29 is designed in particular as a high-speed drive with a speed of more than 1000 rpm with a high power of more than one megawatt. Thereof, and by the resulting very strong centrifugal forces which occur in such ho ⁇ hen speeds, high demands on the electromagnetic and 1 on the mechanical properties of the rotor It is exemplified by a four-pole rotor 1 with external excitation, the four Exciter coils 2 are arranged offset by 90 °.
- the exciter coils 2 have windings 3, which are wound around a laminated core 4, which preferably consists of iron. Each excitation coil 2 is held in ra ⁇ dialer direction from a pole piece 5, which is fixed by screws 6 to the laminated core. 4 Furthermore, the pole piece 5 has the task to let the magnetic field lines of the current-carrying excitation coil 2 emerge in a defined form and distribute. Winding supports 7 stabilize the excitation coils 2 in addition.
- a shaft 9 is rotatably connected to the laminated core 4 of the rotor 1.
- the laminated core 4 with the excitation coils 2 is cooled by a fan 8. To avoid Kerbbe pipe in the corners, the windings 3 of the excitation coils 2 are wound octagonally or octagonally.
- the 2 shows a three-dimensional representation of an exciter coil ⁇ 2 according to the prior art.
- the square Erre ⁇ gerspule 2 consists of individual copper mold profiles 12, for example, flat copper which are manufacturedschnit ⁇ th from shaped profiles and are then mengelötet at the four corners 13 frontally with a Ecklötung 11 into a continuous coil together.
- the individual windings 3 of the exciter coil 2 are electrically isolated from each other by an insulation 10.
- the feeding of the current into the excitation coil 2 he follows ⁇ over leads 14.
- the manufacturing process of Excitation coil 2, as shown in FIG 2, is very time consuming and costly. In the area of the corners 13, high notch stresses occur.
- FIG. 3 shows a cross-section of the rotor 1 of a synchronous machine 29.
- the exemplary four orthogonally arranged ⁇ excitation coils 2 are held in the radial direction from a respective pole piece 5, which is attached with bolts 6 to the laminated core.
- the shaft is non-rotatable and preferably cohesively connected to the laminated core 4 of the rotor 1 verbun ⁇ .
- the individual windings 3 of the excitation coils 2 are preferably made of copper and are electrically insulated by an insulation 10 of ⁇ each other and the laminated core 4.
- the 5 pole shoes bear with their approximation approximately mushroom-shaped cross-section helps to distribute the magnetic field so that the rotor 1 produces a homogeneous as possible Mag ⁇ netfeld.
- FIG. 4 shows a three-dimensional representation of a continu- ous winding and soldering method according to the invention for an exciting coil 2 with 1x3 portion of conductors 15, wherein the partial ⁇ conductors 15 overlie one another and an identical preferably square cross-sectional area have.
- the parallel rectangular sub-conductors 15 may preferably be made of standard semi-finished products, in particular of copper, and in the first step are loosely joined together to form a Monlei ⁇ ter 16.
- the connection of several Sectionlei ⁇ ter 15, which are integrally formed in their full length, to a total conductor 16 the production of different conductor geometries is possible.
- the resulting loosely connected Ge ⁇ velvet conductor 16 is wound with a winding mandrel 17 to an excitation coil 2 (see FIG 6).
- the sub-conductors 15 of the total conductor 16 are then directly after the winding with a
- Soldering device 18 continuously soldered together to form a solid excitation coil 2 with a rigid overall conductor 16. Soldering the parallel strands with a Lot 20 is necessary to ensure a rigid connection. afford, which gives the so-connected total conductor 16 the necessary Biegetragrise for the occurring centrifugal loading ⁇ tions. Since these "internal" loads are not very high, a soft soldering process is sufficient to minimize the cleaning and cleaning work. During the continuous soldering operation, the sub-conductors 15 are held together by forming means 19 in the desired position. The manufacturing method shown in FIG. 4 can be used both for salient-pole machines and for full-pole machines.
- FIG 5 shows a three-dimensional representation of a continu ⁇ ous winding and soldering an exciting coil 2 with 2x2 partial conductors 15.
- the manufacturing process corresponds to the process shown in Figure 4, wherein in FIG 4 by way of example four square conductor elements 15 with identical cross-section ⁇ surface into a square overall head 16 are processed. Accordingly, the conductor 15 from two sides must lengthwise loose at a total head of 16 joined the ⁇ . After the joining of the conductor 15 of the RECT, loosely coupled square overall conductor 16 having a mandrel 17 to an exciting coil 2 (see FIG 6) ge ⁇ wound and soldered together directly after the winding continuously to a massive exciter coil.
- FIG. 5 shows a three-dimensional representation of a part ei ⁇ ner exciter coil 2 with 1x3 sub-conductors, which has two windings 3 by way of example, wherein the total conductor 16 has been produced with the continuous winding and soldering process shown in FIG.
- an insulation 10 which has a high voltage-resistant ⁇ electrically insulating plastic, in particular aramid, and which is adapted to isolate the windings 3 against each other at ⁇ .
- the windings 3 the exciter coil 2 have at the corners a favorable rounded radius 21, whereby a stress concentration in the corners is avoided. Inlets and outlets at the ends of the excitation coil 2 can be integrated without the use of additional connecting parts according to the same process.
- FIG. 7 shows a three-dimensional representation of a part ei ⁇ ner excitation coil 2 with 2x2 sub-conductors, which by way of example comprises two windings 3, wherein the square Baclei ⁇ ter 16 was produced with the continuous winding and soldering process shown in FIG.
- the two windings 3 illustrated an insulation used Zvi ⁇ rule 10, which has a high voltage-resistant electrically insulating plastic, in particular aramid, and wel ⁇ surface is adapted to isolate the two windings 3 against each other.
- the windings 3 of the excitation coil 2 have at the corners of a favorable rounded radius 21, where ⁇ is avoided by a Kerbbe pipeung in the corners. Inlets and outlets at the ends of the exciter coil 2 can be integrated without the use of additional connecting parts according to the same process.
- FIG. 8 shows a cross section of a part of a rotor of a synchronous machine with exciter coils with 2x2 partial conductors. It is an example of a four-pole rotor 1 with
- the exemplary four pole shoes 5 and the laminated core 4 of the rotor 1 are produced in one piece.
- the laminated core 4 can in the axial direction with the pole pieces 5, which are made of one piece, consist of several individual plates ⁇ .
- the shaft is rotatably and preferred material ⁇ positively connected to the laminated core 4 of the rotor. 1
- the excitation coil is wound directly around the laminated core with the pole piece.
- the excitation coils 2 are wound directly around the Blechpa ⁇ ket 4 with the integrated pole pieces 5.
- the Polschu ⁇ he 5 for example, with screws 6, the laminated core 4 mecha- to fix.
- the total conductors 16 of the exciter coils 2 were produced by the continuous winding and soldering method shown in FIG.
- the individual windings 3 of the exciter coils 2 are preferably made of copper and are electrically insulated from each other by an insulation 10 and from the laminated core 4.
- the pole shoes 5 with their approximately mushroom-shaped cross-section also contribute to distributing the magnetic field, so that the rotor 1 generates a magnetic field which is as homogeneous as possible.
- FIG. 9 shows a three-dimensional representation of a part ei ⁇ ner excitation coil 2 with 1x3 sub-conductors 15, 24 and cooling vanes 22, which are formed from a part of the outer sub-conductor 24.
- the cooling vanes 22 increase the surface of the outer sub-conductor 24 to the outside, which has an advantageous effect on the cooling of the current-carrying excitation coil 2.
- a lower temperature leads to lower losses in the excitation coil 2, since the specific resistance of copper increases with temperature.
- the cooling lugs 22 are attached locally with suitable squeezing tools at regular intervals. Functional areas, such as Wicklungsstüt ⁇ zen 17, are thereby recessed accordingly.
- FIG. 10 shows a cross section of a synchronous machine 29, which has a stator 25 and a rotor 1.
- the stator has a laminated stator core 26 in which grooves 27 are located in which the stator windings 28 run.
- the rotor rotates about a rotation axis 30 corresponds to the structure of the Ro ⁇ gate 1 is essentially that of Figure 8, wherein the total conductor 16 of the exciting coils 2 of 1x3 subconductors 15 are constructed and manufactured with the continuous winding and soldering process shown in FIG.
- the invention thus relates to a method for producing a rotor 1 for a synchronous machine 29, which is suitable for a rotational speed of more than 1000 U / min, comprising at least one exciter coil 2, wherein the at least one exciter coil 2 each have at least two windings ⁇ third which consist of a plurality of parallel electrically conductive connected rectangular partial conductors 15.
- the excitation coil 2 with a continuous winding and soldering method such that the plurality of parallel rectangular sub-conductors 15 are first loosely loosely joined to one another velvet conductor 16 are joined together, then the total conductor 16 is wound to an exciter coil 2 and the part ⁇ conductor 15 of the total conductor 16 are soldered directly after winding continuously to a massive field coil 2 with a rigid overall conductor 16.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15163237.9A EP3079242A1 (de) | 2015-04-10 | 2015-04-10 | Herstellungsverfahren einer wicklung um einen ausspringenden pol für eine synchronmaschine |
PCT/EP2016/050431 WO2016162128A1 (de) | 2015-04-10 | 2016-01-12 | Herstellungsverfahren einer wicklung um einen ausspringenden pol für eine synchronmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3257142A1 true EP3257142A1 (de) | 2017-12-20 |
Family
ID=52814930
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15163237.9A Withdrawn EP3079242A1 (de) | 2015-04-10 | 2015-04-10 | Herstellungsverfahren einer wicklung um einen ausspringenden pol für eine synchronmaschine |
EP16700414.2A Withdrawn EP3257142A1 (de) | 2015-04-10 | 2016-01-12 | Herstellungsverfahren einer wicklung um einen ausspringenden pol für eine synchronmaschine |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15163237.9A Withdrawn EP3079242A1 (de) | 2015-04-10 | 2015-04-10 | Herstellungsverfahren einer wicklung um einen ausspringenden pol für eine synchronmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20180102697A1 (de) |
EP (2) | EP3079242A1 (de) |
CN (1) | CN107210635B (de) |
BR (1) | BR112017020543A2 (de) |
WO (1) | WO2016162128A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2925389T3 (es) * | 2018-07-31 | 2022-10-17 | Ge Renewable Tech | Rotor para un generador síncrono |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766417A (en) * | 1972-08-11 | 1973-10-16 | Gen Electric | Side support for synchronous rotor field winding |
FR2211786B1 (de) * | 1972-12-23 | 1978-11-10 | Eda Overseas Ltd | |
DE2503428C3 (de) * | 1975-01-28 | 1978-12-14 | Kraftwerk Union Ag, 4330 Muelheim | Wicklungsträger zur Aufnahme einer supraleitenden Erregerwicklung im Läufer eines Turbogenerators |
US4268003A (en) * | 1977-11-02 | 1981-05-19 | Liautaud James P | Mold core and method and apparatus for manufacture |
US4617725A (en) * | 1984-10-01 | 1986-10-21 | Siemens-Allis, Inc. | Method of making multiple-element strap winding for rotor pole |
JPH11122878A (ja) * | 1997-10-17 | 1999-04-30 | Hitachi Ltd | 導体コイル端末の設計装置、及びその設計プログラムを記憶した記憶媒体 |
US6870294B2 (en) | 2000-06-08 | 2005-03-22 | Continental Isad Electronic Systems Gmbh & Co. Ohg | Winding with moulded parts, method and set of moulded parts for electrical machines |
US6803684B2 (en) * | 2001-05-15 | 2004-10-12 | General Electric Company | Super-conducting synchronous machine having rotor and a plurality of super-conducting field coil windings |
DE10227227A1 (de) * | 2002-06-18 | 2004-01-22 | Siemens Ag | Glimmschutz |
US7015617B2 (en) * | 2003-07-29 | 2006-03-21 | Honeywell International, Inc. | High speed generator with rotor coil support assemblies secured to interlamination disks |
JP2005160143A (ja) * | 2003-11-20 | 2005-06-16 | Toyota Motor Corp | 回転電機の固定子 |
DE102006041459A1 (de) * | 2006-09-04 | 2008-03-13 | Siemens Ag | Armierte supraleitende Wicklung und Verfahren zu deren Herstellung |
JP2008148470A (ja) * | 2006-12-12 | 2008-06-26 | Hitachi Ltd | 集中巻コイルおよび集中巻きコイルの製造方法 |
JP5309595B2 (ja) * | 2008-02-19 | 2013-10-09 | 住友電気工業株式会社 | 導線をコイルとして用いてなるモータ、リアクトル、前記導線の製造方法 |
US9985488B2 (en) * | 2011-07-22 | 2018-05-29 | RWXT Nuclear Operations Group, Inc. | Environmentally robust electromagnets and electric motors employing same for use in nuclear reactors |
DE102012010226B4 (de) * | 2012-05-23 | 2021-11-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung einer elektrotechnischen Spule sowie elektrotechnische Spule undElektromaschine mit einer solchen |
WO2014025643A1 (en) * | 2012-08-06 | 2014-02-13 | The Trustees Of Dartmouth College | Systems and methods for promoting low loss in parallel conductors at high frequencies |
ES2634464T3 (es) * | 2013-07-25 | 2017-09-27 | Siemens Aktiengesellschaft | Polo para una máquina eléctrica |
-
2015
- 2015-04-10 EP EP15163237.9A patent/EP3079242A1/de not_active Withdrawn
-
2016
- 2016-01-12 CN CN201680009230.1A patent/CN107210635B/zh not_active Expired - Fee Related
- 2016-01-12 EP EP16700414.2A patent/EP3257142A1/de not_active Withdrawn
- 2016-01-12 BR BR112017020543A patent/BR112017020543A2/pt not_active Application Discontinuation
- 2016-01-12 WO PCT/EP2016/050431 patent/WO2016162128A1/de active Application Filing
- 2016-01-12 US US15/565,014 patent/US20180102697A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN107210635A (zh) | 2017-09-26 |
BR112017020543A2 (pt) | 2018-07-17 |
EP3079242A1 (de) | 2016-10-12 |
CN107210635B (zh) | 2019-08-02 |
WO2016162128A1 (de) | 2016-10-13 |
US20180102697A1 (en) | 2018-04-12 |
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