CH228524A - Coil insulation for electrical machines and apparatus. - Google Patents
Coil insulation for electrical machines and apparatus.Info
- Publication number
- CH228524A CH228524A CH228524DA CH228524A CH 228524 A CH228524 A CH 228524A CH 228524D A CH228524D A CH 228524DA CH 228524 A CH228524 A CH 228524A
- Authority
- CH
- Switzerland
- Prior art keywords
- insulation
- coil
- film
- coil insulation
- electrical machines
- Prior art date
Links
- 238000009413 insulation Methods 0.000 title claims description 19
- 229920002367 Polyisobutene Polymers 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims 3
- 239000000126 substance Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000001993 wax Substances 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
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Organic Insulating Materials (AREA)
- Insulating Of Coils (AREA)
Description
Spulenisolation für elektrisehe Maschinen und Apparate. Die, Erfindung bezieht sieh auf eine Spulenisolation für elektrische Maschinen und Apparate, also auf eine Isolation, die beispielsweise durch Umwickeln oder Herum legen um die aus Drähten oder Litzen be stehende Spule zustande; kommt. Erfindungs gemäss beisteht die Isolation wenigstens teil weise aus Polyfisobutylenfilm. Dieser Film kann die Spule in einer oder mehreren Schichten umhüllen.. Da er ein gummiartiges Verhalten zeigt, kann er unter Spannung auf ,die Spule aufgebracht werden.
Er hält dann die Leiterbündel der Spuk, fest zusammen und schmiegt sieh ihnen dicht an.
Es empfiehlt sich, ,die Isolation ausser aus einer Polyisobutylenfilmschicht noch aus einer Schicht aus Papier, Pressspan, Gewebe, Glimmer, Mikanit, Glasfolien, Zellulosetri- acetat oder dergleichen herzustellen, oder solche Schichten in mehrfachem Wechsel auf- einandeerfolgen zu lassen. Dem Film kann dabei mit diesen Schichten verklebt :sein. Will .man eine feuchtigkeitsdichte Hülle er- hail.ten, dann kann man die Isolation durch ein Anlösemittel 'behandeln.
Unter Anlöse mittel des Polyisobutylens ist eine Flüssig keit, zum Beispiel Trichlor, zu verstehen, die mit diesem Stoff eine klebrige Paste bildet. Somit können die einander überdeckenden Filmteile zusammengeklebt werden.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Die Spule 1, Fig. 1, ist abwechselnd mit Bändern 2 aus Polyisobutylenfilm und Bändern 3 aus Pa pier oder dergleichen umwickelt. Doch kön nen auch Borgen 12, 13 dieser Stoffe um die Spule herumgelegt oder herumgepresst wer den. Fig. 2 zeigt einen Querschnitt durch die Spule.
Die Erfindung bietet .den. Vorteil, dass die Isolation, namentlich wenn neben .dem Poly- isobutylenfilm noch anorganisches Isolier- materiail verwendet wird, fauch bei höherer Temperatur ihre hlervorragende elektrische und mechanische Festigkeit auf die Dauer beibehält.
Der Polyisobutylenfilm bleibt auch, wenn er Temperaturen von 120 und mehr ausgesetzt ist, dauernd elastisch, fliesst nicht und wird auch nicht brüchig. Da dieser Film auch glimmfest ist, kann die Isolation unbe denklich für Hochspannungsmaschinen oder dergleichen verwendet werden. Sie kann da bei aus dünnen Isolierschichten bestehen.
Durch Behandlung mit einem Anlösemittel, zum Beispiel durch Trichlor, verklebt die Isolation zu einer feuchtigkeitsdichten Hülle; sie kann deshalb auch für Maschinen in nassen Betrieben und insbesondere auch für Niederspannungsmaschinen verwendet wer den. Die Isolation schmiegt sich wegen der Elastizität des. Filmes gut der Spule an. Falls die Dehnbarkeit des, Filmes stört, kann sie durch Verkleben des Filmes, mit Papier, Gewebe oder dergleichen mehr oder weniger vollständig aufgehoben werden. Die Isolation zeigt auch grosse chemische Beständigkeit.
Bei der Herstellung des Polyisobutylen- filmes kann dem Polyisobutylen in kleineren Mengen auch ein hochschmelzendes Wachs, Paraffinodem Harz zugemischt werden.
Coil insulation for electrical machines and apparatus. The invention relates to a coil insulation for electrical machines and apparatus, that is to say to an insulation that is created, for example, by winding or wrapping around the coil consisting of wires or strands; comes. According to the invention, the insulation is at least partially made of polyfisobutylene film. This film can cover the coil in one or more layers. Since it shows a rubber-like behavior, it can be applied to the coil under tension.
He then holds the ladder bundles of the spook tightly together and hugs them tightly.
It is advisable to produce the insulation not only from a polyisobutylene film layer but also from a layer of paper, pressboard, fabric, mica, micanite, glass film, cellulose triacetate or the like, or to have such layers alternate several times. The film can be glued to these layers: If you want a moisture-proof cover, you can treat the insulation with a solvent.
Solvent of polyisobutylene is a liquid, for example trichloro, to be understood that forms a sticky paste with this substance. Thus, the overlapping film parts can be glued together.
An embodiment of the invention is shown in the drawing. The coil 1, Fig. 1, is alternately wound with tapes 2 made of polyisobutylene film and tapes 3 made of Pa pier or the like. However, borrowings 12, 13 of these substances can also be placed or pressed around the coil. Fig. 2 shows a cross section through the coil.
The invention offers. The advantage that the insulation, especially if inorganic insulating material is used in addition to the polyisobutylene film, retains its excellent electrical and mechanical strength in the long term, even at higher temperatures.
Even when exposed to temperatures of 120 and more, the polyisobutylene film remains permanently elastic, does not flow and does not become brittle. Since this film is also glow-proof, the insulation can be used safely for high-voltage machines or the like. It can consist of thin layers of insulation.
Treatment with a solvent, for example trichloro, bonds the insulation to form a moisture-proof cover; it can therefore also be used for machines in wet plants and especially for low-voltage machines. Because of the elasticity of the film, the insulation clings well to the coil. If the stretchability of the film interferes, it can be more or less completely canceled by gluing the film, with paper, fabric or the like. The insulation also shows great chemical resistance.
When producing the polyisobutylene film, a high-melting wax, paraffin or resin can also be mixed with the polyisobutylene in smaller quantities.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE228524X | 1941-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH228524A true CH228524A (en) | 1943-08-31 |
Family
ID=5867250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH228524D CH228524A (en) | 1941-08-04 | 1942-07-27 | Coil insulation for electrical machines and apparatus. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH228524A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1090733B (en) * | 1956-02-24 | 1960-10-13 | Siemens Ag | Winding insulation |
| WO2017041951A1 (en) * | 2015-09-10 | 2017-03-16 | Siemens Aktiengesellschaft | Stator for an electric machine, electric machine and production method |
-
1942
- 1942-07-27 CH CH228524D patent/CH228524A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1090733B (en) * | 1956-02-24 | 1960-10-13 | Siemens Ag | Winding insulation |
| WO2017041951A1 (en) * | 2015-09-10 | 2017-03-16 | Siemens Aktiengesellschaft | Stator for an electric machine, electric machine and production method |
| RU2682319C1 (en) * | 2015-09-10 | 2019-03-19 | Сименс Акциенгезелльшафт | Stator for electric machine, electric machine and the manufacturing method |
| US11070100B2 (en) | 2015-09-10 | 2021-07-20 | Siemens Aktiengesellschaft | Stator for an electric machine, electric machine and production method |
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