EP1305867A1 - Wicklungen für elektrische maschinen mit leitern aus litze - Google Patents
Wicklungen für elektrische maschinen mit leitern aus litzeInfo
- Publication number
- EP1305867A1 EP1305867A1 EP00949862A EP00949862A EP1305867A1 EP 1305867 A1 EP1305867 A1 EP 1305867A1 EP 00949862 A EP00949862 A EP 00949862A EP 00949862 A EP00949862 A EP 00949862A EP 1305867 A1 EP1305867 A1 EP 1305867A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- coils
- coil
- voltage
- windings
- 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- Withdrawn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
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
- H02K3/14—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots with transposed conductors, e.g. twisted conductors
Definitions
- Windings for electrical machines with conductors made of stranded wire Windings for electrical machines with conductors made of stranded wire.
- This invention relates to the field of “electrical machines” with the sub-term “windings of electrical machines”.
- the field of application of the invention is electrical engineering, specifically the production of windings for electrical machines with open slots and rated voltages from 0.2 kV to 15.75 kV and frequencies up to 100 Hz.
- the winding is the heart of the electrical machine. This winding is available in two basic designs: a) Round wire windings b) Rectangular wire windings
- windings of such electrical machines are today made from shaped coils with rectangular wires (also called flat wires). Detailed statements on this can be found among others at SEQUENZ, H.: Manufacture of windings for electrical machines, Vienna, Springer-Verlag 1973 from page 107.
- Form coil windings with flat wires are associated with a high technological effort in their manufacture and are very labor-intensive.
- the production of the known form coil winding is carried out as follows: a) winding the output spool, the so-called fish spool b) bandaging the fish spool with an auxiliary bandage for spreading c) spreading the fish spool in the spreader to form the spool d) removing the auxiliary bandage e) pre-consolidating the spool slot in a warm coil press f) applying the main insulation by hand or machine g) inserting the insulated coil into the grooves of the laminated core h) switching and stabilizing the winding i) impregnating the winding with impregnating agent and curing it The insulation becomes mechanical when producing molded coil windings highly stressed, with risk of destruction.
- the invention is based on the task today electrical machines with rated voltages from 0.2 kV to 15.75 kV with open slots to replace conventional form coils with a coil that is easier to manufacture.
- a stranded wire is a multitude of (possibly fine) copper wires that are stranded and pressed together.
- the wires themselves are usually not insulated, but the stranded wire, which has a square or rectangular cross section, is provided with an outer insulation.
- Edgewise and "flat edged” coils consist of strand of rectangular cross-section, whereby in the case of an edgewise coil the windings of strand are bent over the narrower side of the rectangular cross-section, in the case of a flat wound coil they are bent over the wider side ,
- Coils according to the invention can be of various shapes and widths.
- the "shape" of a coil is the shape of a cross-sectional area through this coil that is perpendicular to the coil axis.
- the term "coil axis" itself is known in the art.
- Examples of coil shapes according to the invention are: a) an essentially rectangular shape, optionally with rounded corners; Coils of this shape are referred to below as “rectangular coils”. The width of such a coil is the distance between these sides measured perpendicular to the two longer sides of the rectangle. b) A shape derived from a rectangle with the shorter sides replaced by semicircular arcs; Coils of this shape are referred to below as "slot-shaped coils". The width of such a coil is the distance between these sides measured perpendicular to the two remaining straight sides.
- high voltage means a voltage range from 1 kV to 30 kV.
- a high-voltage range for which the windings according to the invention can preferably be used is approximately 1 kV up to about 15.75 kV and particularly preferably from about 3 kV to about 15.75 kV.
- the area below 1 kV is considered "low voltage”.
- a “winding” is an assembly of an electrical equipment, e.g. a rotating electrical machine such as a motor or a generator, which is generally composed of several coils. Several coils of the same or different widths can form a coil group.
- strands for coils and windings of rotating electrical machines in the rated range from 0.2 to 15.75 kV and / or 0 to 100 Hz is not previously known.
- strands By using strands, a simpler coil geometry is achieved and the mechanical stress on the insulation of the strands is largely reduced. This improves, among other things also the surge voltage resistance.
- the winding is easier to manufacture in terms of production technology. Due to the reduced compared to the form coil winding
- the number of operations reduces the manufacturing time. Due to the design of the switch connections of the strand winding as a press connection, especially for stranded wires with bare individual conductors, the complex switching e.g. through welded joints.
- Figure 1 shows in variant a) an elevation of a flat-wound elongated hole-shaped coil and in variant b) an elevation of an upright wound elongated coil. hole-shaped coil. The coil axes are perpendicular to the sheet.
- Figure 2 shows in variant a) a flat-wound
- FIG. 3 shows the sectional illustration of possible coil shapes of the coils according to the invention with a) windings arranged flat-edged b) windings arranged upright.
- Figure 4 shows a sectional view of a stator of a motor or generator, in the grooves of which a coil of the winding according to the invention is inserted, which is wound flat.
- Figure 5 shows a sectional view of a stator of a motor or generator, in the grooves of which a coil of the winding according to the invention is inserted, which is wound upright.
- multi-stranded wires with square or rectangular cross sections are used as the conductor material.
- These strands can consist of bare or painted individual conductors.
- the strand can be used with insulating tapes, e.g. B. foil mica tapes or glass fabric mica tapes, one or more be layered as winding insulation.
- the insulation thickness determined by the number of layers and overlap, is determined by the winding voltage of the coil.
- Conventional insulating materials can be used as the main insulation of the coils in the windings according to the invention. Surface voltages are used here for voltages up to 1 kV. Insulation materials containing mica are used for voltages above 1 kV.
- Known resins and other known impregnating agents with appropriate impregnating technologies can be used for the impregnation.
- the insulated stranded wire can be wound into a coil shape according to FIG. 1 or 2.
- FIG. 1 or 2 Various variants are shown in these figures, further variants being possible in the shape.
- the coils according to the invention can be produced using generally known technologies for the production of coils.
- a typical process description for the production of the coils according to the invention would be e.g. the above-mentioned method description for the form coil winding, but steps b), c) d) and e) are not mandatory or even unnecessary for the coil according to the invention.
- Steps b), c) and d) are preferably omitted and the winding of step a) is carried out with the aid of an appropriate template.
- the coils are wound on appropriate templates, fixed in order to prevent the layers from slipping, and the switching ends are insulated. The main insulation is then applied. Depending on the size of the rated voltage, the entire coil is manually or mechanically with an insulating tape, z. B. glass fabric mica Band, banded. The banding takes place in one or more layers and depends on the stress and dimensioning.
- a preferred area of application for the coils according to the invention are windings for rotating electrical machines, in particular stator windings (see FIGS. 4 and 5).
- the windings according to the invention are arranged analogously to the previously known form coil windings with square wires, the windings according to the invention likewise being able to be inserted or fitted into slots 2, 3 which are stamped into the inside of the stator laminate core 4.
- FIGS. 4 and 5 show how the position of the coil sides 1001, 1002 (with turns made of strands, here not given the corresponding reference numbers for the sake of clarity) is in the slots.
- the stator laminated core 4 which is interrupted by a wavy line, is intended to indicate that a coil does not necessarily have to lie in adjacent slots 2, 3.
- the left spool side 1002 lies as the spool top layer 5 or. as a coil pad 6 in the groove.
- An intermediate layer 7 can be present between the coil top layer 5 and the coil base 6.
- the coils can be provided with a main insulation 8; the grooves can be closed with slot wedges 9 after insertion.
- Windings according to the invention can be designed as one- or two-layer windings.
- the windings of Figures 4 and 5 are two-layer windings.
- stator windings with conductors made of stranded wire: a) Template winding for coils of the same width with wire. For this type of stencil winding, bobbins with strands according to bobbin shape a) of FIG. 2 are produced, with further variants being possible in the shape according to the technological circumstances.
- the stranded conductors are arranged according to scheme a) of FIG. 3, the total number of conductors, the number of conductors next to and on top of one another.
- the coils produced in this way are insulated, preformed and placed in the slots in the stator core, where they receive their final shape, b) Stencil winding for coils of unequal width in one or two layers with strands and conductors flat in the slot.
- bobbins with strands according to bobbin shape b) of FIG. 1 are produced, with other variants being possible in the shape according to the technological circumstances, e.g. rectangular shape according to coil shape b) of Figure 2).
- the stranded conductors are arranged according to scheme b) of FIG. 3, the total number of conductors, the number of conductors next to and on top of one another.
- the coils produced in this way are insulated and can be inserted in this way into the grooves in the stator core.
- Strand according to coil shape a) from FIG. 1 or coil shape b) of Figure 2, with other variants are possible in the shape according to the technological circumstances.
- the stranded conductors are arranged according to scheme a) of FIG. 3, the number of conductors as a whole, the number of conductors next to and on top of one another.
- the coils thus produced are insulated and can be inserted in this way into the grooves in the stator laminated core.
- a coil When producing a two-layer winding with coils of unequal width, a coil consists of one or more coil groups. This depends on the number of uses and the number of poles of the machine.
- the winding heads 1003 are stabilized analogously to the form coil winding, i.e. with the help of cord, tapes, felt and swellable glass mats.
- the switching connections can be made by pressing using press sleeves.
- the coils can be provided with a slot part and an end glow protection.
- All impregnation methods can be used for low-voltage windings according to the invention, which are not produced with porous mica tapes, but instead with groove linings made of surface insulating materials, ie
- the high-voltage windings according to the invention can also be implemented with resin-rich mica tapes as the main insulation according to the known resin-rich process.
- a simpler coil geometry is achieved through the use of strands. This improves, among other things also the surge voltage resistance.
- the winding is easier to manufacture in terms of production technology.
- the production time is reduced due to the reduced number of operations compared to the form coil winding.
- the execution of the switch connections of the stranded winding as press connections eliminates the time-consuming switching by means of welded connections.
- the main insulation of the coils can be produced by hand or by machine using previously known methods.
- a stator for use in a multi-pole electric motor or generator has been fabricated which is designed with an invented two-layer winding according to the invention was provided with coils of unequal widths.
- the stator lamination stack itself was made from dynamo sheets, as is common in the art.
- the coil form a) from FIG. 1 was used.
- the coils had 12 turns, which were arranged according to arrangement a) of Figure 3.
- the winding consisted of 12 coil groups, each with 4 coils of different widths, the coil with the largest width lying in the first and tenth slot of each partial winding; the coils with a medium width lay in the second and ninth slots of each partial winding, and the coil with the smallest width lay in the third and eighth slots of each partial winding.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2000/001154 WO2002011268A1 (de) | 2000-08-02 | 2000-08-02 | Wicklungen für elektrische maschinen mit leitern aus litze |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1305867A1 true EP1305867A1 (de) | 2003-05-02 |
Family
ID=11003963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00949862A Withdrawn EP1305867A1 (de) | 2000-08-02 | 2000-08-02 | Wicklungen für elektrische maschinen mit leitern aus litze |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1305867A1 (de) |
AU (1) | AU2000263117A1 (de) |
BR (1) | BR0017296A (de) |
PL (1) | PL363773A1 (de) |
WO (1) | WO2002011268A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10260284A1 (de) * | 2002-12-20 | 2004-07-15 | Siemens Ag | Elektrische Maschine |
DE10260317A1 (de) * | 2002-12-20 | 2004-07-15 | Siemens Ag | Spulen für elektrische Maschinen in Litzentechnik |
DE10260314A1 (de) * | 2002-12-20 | 2004-09-02 | Siemens Ag | Wickelkopfkühlung von elektrischen Maschinen |
DE10260283A1 (de) * | 2002-12-20 | 2004-07-15 | Siemens Ag | Elektrische Maschine |
DE10335792A1 (de) * | 2003-08-05 | 2005-03-10 | Praetec Praez Stechnik Gmbh | Mehrphasiger, vielpoliger, schnelllaufender Linear- oder Rotationssynchronmotor |
DE102007025938A1 (de) * | 2007-06-04 | 2008-12-18 | Siemens Ag | Hochspannungsmaschine mit verbindungsloser Wicklung |
JP5033552B2 (ja) * | 2007-09-14 | 2012-09-26 | 信越化学工業株式会社 | アキシャルギャップ型コアレス回転機 |
DE102009006763A1 (de) | 2009-01-30 | 2010-08-05 | Siemens Aktiengesellschaft | Spule für eine dynamoelektrische Maschine |
DE102009046038A1 (de) | 2009-10-27 | 2011-04-28 | Siemens Aktiengesellschaft | Spule aus härtbarem, flexiblen Litzenleiter |
EP3089329B1 (de) | 2015-04-27 | 2020-08-12 | Von Roll Schweiz AG | Verfahren zur herstellung einer zahnspule für eine elektrische maschine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2534082A1 (fr) * | 1982-09-30 | 1984-04-06 | Le Proizv | Barre de l'enroulement de stator a noyau lisse pour machine electrique |
SE466878B (sv) * | 1989-08-28 | 1992-04-13 | Vattenfall | Permanentmagnetiserad roterande elektrisk hoeghastighetsmaskin |
WO1992002982A1 (de) * | 1990-08-08 | 1992-02-20 | Zahnradfabrik Friedrichshafen Ag | Drehfeldmotor |
DE4414527C1 (de) * | 1994-04-26 | 1995-08-31 | Orto Holding Ag | Elektronisch kommutierte Gleichstrommaschine |
JPH08126275A (ja) * | 1994-10-25 | 1996-05-17 | Sawafuji Electric Co Ltd | コアレス回転機 |
BR9709371A (pt) * | 1996-05-29 | 2000-01-11 | Asea Brow Boveri Ab | Condutor isolado para bobinas de alta voltagem e métodos para fabricar o mesmo. |
JPH11346450A (ja) * | 1998-06-01 | 1999-12-14 | Fuji Electric Co Ltd | 高圧回転機の固定子コイル |
-
2000
- 2000-08-02 EP EP00949862A patent/EP1305867A1/de not_active Withdrawn
- 2000-08-02 PL PL00363773A patent/PL363773A1/xx not_active Application Discontinuation
- 2000-08-02 BR BR0017296-0A patent/BR0017296A/pt not_active IP Right Cessation
- 2000-08-02 AU AU2000263117A patent/AU2000263117A1/en not_active Abandoned
- 2000-08-02 WO PCT/IB2000/001154 patent/WO2002011268A1/de not_active Application Discontinuation
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO0211268A1 * |
Also Published As
Publication number | Publication date |
---|---|
PL363773A1 (en) | 2004-11-29 |
WO2002011268A1 (de) | 2002-02-07 |
AU2000263117A1 (en) | 2002-02-13 |
BR0017296A (pt) | 2003-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004059817A1 (de) | Spulen für elektrische maschinen in litzentechnik | |
EP2162971B1 (de) | Stator mit isolierung für einen elektromotor und isolierung für einen stator sowie elektrowerkzeugmaschine | |
WO2002011268A1 (de) | Wicklungen für elektrische maschinen mit leitern aus litze | |
DE112016005116T5 (de) | Wicklungs- und statoranordnung einer elektrorotationsmaschine | |
EP1060485B1 (de) | Mehrfachparallelleiter für elektrische maschinen und geräte | |
EP3871319B1 (de) | Isolierung von teilleitern einer dynamoelektrischen maschine | |
DE102014217289A1 (de) | Wicklungsanordnung und Verfahren zur Herstellung einer Wicklungsanordnung | |
DE102019109516A1 (de) | Wicklung und Verfahren zur Herstellung einer Wicklung | |
DE2931724C2 (de) | Selbsttragende Läuferspule für Gleichstrommaschinen | |
DE102009056676A1 (de) | Wicklung für eine elektrische Maschine sowie ein Verfahren zur Herstellung einer solchen Wicklung | |
DE2448847A1 (de) | Verfahren zum einkapseln zufaellig gewickelter statorspulen fuer dynamoelektrische maschine | |
DE10338452A1 (de) | Verfahren zur Herstellung eines Bauteils mit einer Spule sowie elektrische Maschine mit derartigem Bauteil | |
DE10112268A1 (de) | Elektrische Maschine | |
DE102012206039A1 (de) | Elektrische Maschine und Verfahren zur Herstellung einer elektrischen Maschine | |
DE1613107A1 (de) | Verfahren zum Umordnen und Binden elektrischer Spulen | |
DE2443255A1 (de) | Bandwickel-magnetkern | |
DE102004055608A1 (de) | Wicklung für elektrische Maschinen | |
DE3842563A1 (de) | Isolierter leiter | |
DE19630872C2 (de) | Isolierung für Wicklungen elektrischer Maschinen | |
DE102009046038A1 (de) | Spule aus härtbarem, flexiblen Litzenleiter | |
DE102016015238A1 (de) | Verfahren und Vorrichtung zum Herstellen einer elektrischen Maschine | |
DE3316234A1 (de) | Stillstandsheizung fuer elektrische maschine | |
DE7711348U1 (de) | Ausgepraegter pol fuer eine elektrische maschine | |
DE102022134667A1 (de) | Elektrische Spule und Verfahren zur Herstellung einer elektrischen Spule | |
DE102019104998A1 (de) | Statorspule für eine elektrische Maschine und Verfahren zur Herstellung der Statorspule |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
17P | Request for examination filed |
Effective date: 20030225 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PARTZSCH, THOMAS Inventor name: MUELLER, GERMAR Inventor name: KLOTSCHE, HOLGER Inventor name: HILLMER, THOMAS Inventor name: GOLBIG, WOLFGANG Inventor name: BRANDES, HEINZ |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PARTZSCH, THOMAS Inventor name: MUELLER, GERMAR Inventor name: KLOTSCHE, HOLGER Inventor name: HILLMER, THOMAS Inventor name: GOLBIG, WOLFGANG Inventor name: BRANDES, HEINZ |
|
17Q | First examination report despatched |
Effective date: 20061220 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20070301 |