DE312728C - - Google Patents
Info
- Publication number
- DE312728C DE312728C DENDAT312728D DE312728DA DE312728C DE 312728 C DE312728 C DE 312728C DE NDAT312728 D DENDAT312728 D DE NDAT312728D DE 312728D A DE312728D A DE 312728DA DE 312728 C DE312728 C DE 312728C
- Authority
- DE
- Germany
- Prior art keywords
- tube
- strand
- section
- litz
- inner core
- 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.)
- Active
Links
- 239000004020 conductor Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000007906 compression Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- 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
-
- 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
- H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulated Conductors (AREA)
Description
Litzenartige Leiter haben, da sie aus dünnen miteinander verseilten Drähten bestehen, nur eine geringe mechanische Festigkeit. Die Ein-. bringung in Nutenwicklungen elektrischer Maschinen zum Beispiel ist daher schwierig. Man hat deshalb bereits Litzenleiter mit massiven Beilagen ausgeführt, um einerseits die Steifigkeit der Litze zu erhöhen, anderseits aber auch die Stromverdrängung gegenüber Leitern mitLitz-like conductors, since they consist of thin wires twisted together, only have poor mechanical strength. The A-. installation in slot windings in electrical machines for example is therefore difficult. You therefore already have stranded conductors with massive Supplements designed to increase the stiffness of the strand on the one hand, but also on the other hand the current displacement compared to conductors with
ίο massivem Querschnitt gering zu halten. Handelt es sich nun beispielsweise um Nuten mit rechteckigem Querschnitt, so muß man um ein Flachkupfer herum die dünnen Drähte verseilen oder verklöppeln. Dieses Herstellungsverfahren ist jedoch mit Schwierigkeiten verknüpt. Die Erfindung hat nun ein neues Verfahren zum Gegenstand, durch das Litzenleiter mit massiven Beilagen auf einfache Weise hergestellt und in jede beliebige Form gebracht werden können. Gemaß dem neuen Verfahren werden die dünnen Drähte, wie Fig. 1 zeigt, um ein metallisches Rohr herum verseilt, so daß zunächst ein schlauchartiger Leiter entsteht, der im Innern aus dem Rohre α, außen aus einer ringförmigen Schicht b von litzenartigem Aufbau besteht. Aus diesem kreisförmigen, in den meisten Fällen unbrauchbaren Querschnitt erzielt man den gewünschten, z. B. rechteckigen Querschnitt nach Fig. 2 durch Pressen. Dieses Pressen geht um so leichter vor sich, da das Rohr α sich zusammendrücken läßt und zusammengepreßt einen gleichsam massiven Kern höher Biegungsfestigkeit bildet, der dem ganzen Leiter die gewünschte Festigkeit gibt. ..:·.·,.·.-.ίο to keep the massive cross-section low. If, for example, it is a question of grooves with a rectangular cross-section, the thin wires must be stranded or braided around a flat copper. However, there are difficulties associated with this manufacturing method. The subject of the invention is a new method by means of which stranded conductors with solid shims can be produced in a simple manner and brought into any desired shape. According to the new method, the thin wires, as shown in FIG. 1, are stranded around a metallic tube, so that initially a hose-like conductor is formed which consists of the inside of the tube α and the outside of an annular layer b of a strand-like structure. From this circular, in most cases unusable cross-section, the desired, z. B. rectangular cross-section according to Fig. 2 by pressing. This pressing is all the easier because the tube α can be compressed and, when compressed, forms an almost solid core of higher flexural strength, which gives the entire conductor the desired strength. ..: ·. ·,. · .-.
Um beim Zusammenpressen ein Zerreißen der dünnen Litzendrähte oder ein Aufbauchen derselben zu vermeiden, muß die Dicke der auf das Rohr aufgebrachten ringförmigen Schicht in einem bestimmten, durch Versuche oder Rechnungen festzustellenden Verhältnis zum Rohrdurchmesser stehen. Die Bauart des zur Ver- ■ Wendung kommenden Rohres ist für die Erfindung unerheblich. Es kann ein nahtloses Rohr verwendet werden, oder ein Rohr, das aus einem Blechstreifen gebogen und dessen Ränder entweder miteinander überlappt oder miteinander verfalzt sind. Auch ist es möglich ein Rohr zu verwenden, das aus einem Blechstreifen gewickelt ist, beispielsweise aus einem schmalen Blechband, das spiralisch aufgewickelt wird.To prevent the thin stranded wires from tearing or bulging when they are pressed together to avoid, the thickness of the annular layer applied to the pipe must be in a certain ratio to the pipe diameter that can be determined through tests or calculations stand. The design of the pipe used ■ is important for the invention irrelevant. A seamless tube can be used, or a tube made from a Sheet metal strips bent and the edges of which either overlap with one another or with one another are crimped. It is also possible to use a tube that is wound from a sheet metal strip is, for example, made of a narrow sheet metal strip that is wound spirally.
Es ist auch für die Erfindung unerheblich, in welche endgültige Form der steife litzenartige Leiter gebracht wird, und ob hierbei ein völliges Zusammendrücken des Rohres stattfindet wie nach Fig. 2, oder ob das Rohr nur mehr oder weniger deformiert^ wird und der Leiter im Innern hohl bleibt. Wird ein derartig hohler Leiter für die Wicklung einer elektrischen Maschine oder eines Apparates verwendet, so wird zweckmäßig der Hohlraum als Luftkanal zur Führung der Kühlluft ausgenutzt. Die Zuführung der Kühlluft kann in bekannter Weise erfolgen, indem das im Innern des Leiters befindliche Rohr an den Druck- oder Saugraum eines Ventilators oder an eine besondere Luftleitung angeschlossen wird. Es ist natürlich, falls die Isolation es zuläßt, auch die Hindurchleitung irgendeiner Kühlflüssigkeit, sei es z.B. WasserIt is also irrelevant for the invention in which final form the stiff strand-like Head is brought, and whether this is a complete compression of the tube takes place how according to Fig. 2, or whether the tube is only more or less deformed ^ and the conductor inside remains hollow. It is such a hollow conductor for winding an electrical machine or an apparatus is used, the cavity is expediently used as an air duct for guidance the cooling air is used. The cooling air can be supplied in a known manner, by attaching the pipe inside the conductor to the pressure or suction space of a fan or connected to a special air line. It is natural if they do Isolation allows the passage of any cooling liquid, be it e.g. water
oder öl, durch das Rohrinnere zum Zwecke der Kühlung möglich.or oil, possible through the inside of the pipe for cooling purposes.
Anstatt den ursprünglichen Querschnitt des Rohres nach Fig. ι kreisförmig zu wählen, können auch Rohre von anderem, beispielsweise elliptischem oder eckigem Querschnitt Verwendung finden.Instead of choosing the original cross section of the tube according to Fig. Ι circular, Pipes with a different cross-section, for example an elliptical or angular cross-section, can also be used Find.
Claims (2)
Publications (1)
Publication Number | Publication Date |
---|---|
DE312728C true DE312728C (en) |
Family
ID=565640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT312728D Active DE312728C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE312728C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2417818A1 (en) * | 1974-04-11 | 1975-10-23 | Teldix Gmbh | ELECTRIC MACHINE |
FR2610770A1 (en) * | 1987-02-09 | 1988-08-12 | Hitachi Ltd | STATOR FOR USE IN AN ALTERNATOR FOR A VEHICLE AND METHOD FOR MANUFACTURING THE STATOR |
WO1990010336A1 (en) * | 1989-03-01 | 1990-09-07 | Sirten S.R.L. | Stranded conductor of electricity with a flat wire core |
EP0528987A1 (en) * | 1990-05-17 | 1993-03-03 | BISEL, Charley W. | Electromagnetically powered engine apparatus and method |
-
0
- DE DENDAT312728D patent/DE312728C/de active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2417818A1 (en) * | 1974-04-11 | 1975-10-23 | Teldix Gmbh | ELECTRIC MACHINE |
FR2610770A1 (en) * | 1987-02-09 | 1988-08-12 | Hitachi Ltd | STATOR FOR USE IN AN ALTERNATOR FOR A VEHICLE AND METHOD FOR MANUFACTURING THE STATOR |
WO1990010336A1 (en) * | 1989-03-01 | 1990-09-07 | Sirten S.R.L. | Stranded conductor of electricity with a flat wire core |
EP0528987A1 (en) * | 1990-05-17 | 1993-03-03 | BISEL, Charley W. | Electromagnetically powered engine apparatus and method |
EP0528987A4 (en) * | 1990-05-17 | 1994-02-02 | Charly W. Bisel |
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