DE863224C - Electrical conductor with insulation with high thermal stability and conductivity - Google Patents

Electrical conductor with insulation with high thermal stability and conductivity

Info

Publication number
DE863224C
DE863224C DES2322A DES0002322A DE863224C DE 863224 C DE863224 C DE 863224C DE S2322 A DES2322 A DE S2322A DE S0002322 A DES0002322 A DE S0002322A DE 863224 C DE863224 C DE 863224C
Authority
DE
Germany
Prior art keywords
base layer
insulation
layer
heat
conductivity
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.)
Expired
Application number
DES2322A
Other languages
German (de)
Inventor
Carl Reimer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES2322A priority Critical patent/DE863224C/en
Application granted granted Critical
Publication of DE863224C publication Critical patent/DE863224C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat

Landscapes

  • Insulated Conductors (AREA)
  • Organic Insulating Materials (AREA)

Description

Die Erfindung bezieht sich auf einen elektrischen Leiter mit Isolation hoher Wärmebeständigkeit und -ableitfähigkeit, der sich zur Herstellung von Wicklungen elektrischer Maschinen u. dgl. besonders eignet. Die Erfindung hat insbesondere die Aufgabe, eine Wärmestauung in Wicklungen od. dgl. mit elektrisch hochbelasteten Leitern zu vermeiden. Die Leiterisölation soll dabei einerseits elektrisch hochwertig sein, andererseits aber nicht zu stark auftragen. Erfindungsgemäß 'besteht die Leiterisolation aus zwei Schichten, von denen -die eine, eine dünne Grundschicht, aus mehrfachen Bedeckungen eines hitzebeständigen, elektrisch hochwertigen Lackes besteht, die innig mit der zweiten, einer Deckschicht höherer Wärmeleitfähigkeit als die der Grundsch acht, verbunden -ist, -die aus mehreren Bedeckungen Füllmittel enthaltenden Lackes besteht. Für die Grundschicht können beispielsweise ein genügend wärmebeständiges Polyamid, Polyvinylacetat od. dgl. oder Silicon und ähnliche hitzebeständige organische Siliciurnverbindungen verwendet werden. Als Füllstoff für den Lack der Deckschicht eignet sich beispielsweise Aluminiumpulver, Aluminiumoxyd, Zinkoxyd, Kaolin, _Schlackenwollemehl usw. Der Lack der Deckschicht kann aus den gleichen Stoffen bestehen wie der der Grundschicht. Es können aber dafür auch andere Lackbasen verwendet werden, jedoch nur solche, die sich innig mit der Grundschicht verbinden. Um eine solche innige Verbindung zu erleichtern, empfiehlt es sich, die Grundschicht vor dem Aufbringen der Deckschicht nicht vollständig auszuhärten und insbesondere die Deckschicht in unmittelbarer Folge auf die Grundschicht aufzubringen. Bei Verwendung von Siliconlacken tritt meist von selbst eine innige Verbindung der beiden Schichten ein, weil -jede folgende Lackschicht die darunterliegende etwas anlöst bzw. zum oberflächlichen Quellen: veranlaßt.The invention relates to an electrical conductor with insulation of high heat resistance and conductivity, which is particularly suitable for the production of windings in electrical machines and the like. The invention has the particular object of preventing heat build-up in windings or the like with conductors subjected to high electrical loads. The conductor insulation should, on the one hand, be of high electrical quality, but on the other hand not apply too much. According to the invention, the conductor insulation consists of two layers, one of which, a thin base layer, consists of multiple coverings of a heat-resistant, electrically high-quality varnish, which is intimately connected to the second, a cover layer of higher thermal ele itability than that of the base layer, -is connected, -which consists of several coverings of filler-containing varnish. For the base layer, for example, a sufficiently heat-resistant polyamide, polyvinyl acetate or the like or silicone and similar heat-resistant organic silicon compounds can be used. Aluminum powder, aluminum oxide, zinc oxide, kaolin, slag wool, etc. are suitable as fillers for the paint on the top layer. The paint on the top layer can consist of the same substances as that of the base layer. However, other lacquer bases can also be used for this purpose, but only those that bond closely to the base layer. In order to facilitate such an intimate connection, it is advisable not to fully cure the base layer before the top layer is applied and, in particular, to apply the top layer to the base layer in immediate succession. When using silicone varnishes, an intimate connection between the two layers usually occurs automatically because each subsequent layer of varnish partially dissolves the underlying layer or causes it to swell on the surface.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung in vergrößertem Maßstab dargestellt. Auf einem Kupferdraht z sitzt eine dünne Grundschicht a, die mit einer dickeren Deckschicht 3 verbunden ist. Die Schichten haben die obengenannten Eigenschaften.An embodiment of the invention is shown in the drawing in enlarged Scale shown. On a copper wire z sits a thin base layer a, the is connected to a thicker cover layer 3. The layers are as above Properties.

Die Erfindung bietet folgende Vorteile: Die dünne Grundschicht ist eine elektrisch hochwertige, genügend hitzebeständige Isolation, die wegen ihrer geringen Stärke kein größeres Wärmegefälle hervorruft. Die Deckschicht, die ebenfalls wesentlich zur elektrischen Isolation beiträgt, leitet die Wärme gut nach außen ab, es wird also keine Wärme gestaut. Außerdem schützt sie die Grundschicht auch mechanisch bei der Verarbeitung des Drahtes. Da sie innig mit der Grundschicht verbunden ist, haftet sie auch fest auf ihr und kann sich davon nicht ablösen. Außerdem begünstigt die innige Verbindung der beiden Schichten den Wärmeübergang.The invention offers the following advantages: The thin base layer is an electrically high-quality, sufficiently heat-resistant insulation, which because of its low strength does not cause a greater thermal gradient. The top layer that too makes a significant contribution to electrical insulation, it conducts heat well to the outside off, so no heat is accumulated. It also protects the base layer mechanically when processing the wire. Because they are intimately connected with the base layer it adheres firmly to it and cannot detach from it. Also favors the intimate connection of the two layers the heat transfer.

Claims (3)

PATENTANSPRÜCHE: i. Elektrischer Leiter mit Isolation hoher Wärmebeständigkeit und -ableitfähigkeit, dadurch gekennzeichnet, daß seine Isolation aus zwei Schichten; (2-, 3) besteht, von denen die erste, eine dünne Grundschicht (2), aus mehrfachen Bedeckungen eines hitzebeständigen, elektrisch hochwertigen .Lackes besteht, die innig ;nnit der zweiten, einer Decksceh@icht (3) ;höherer Wärmeableitfähiigkeit als edier der Grundschicht, verbunden ist, ide aus mehreren Bedeckungen Füllmittel enthaltenden Lackes besteht. PATENT CLAIMS: i. Electrical conductor with insulation with high heat resistance and conductivity, characterized in that its insulation consists of two layers; (2-, 3), of which the first, a thin base layer (2), consists of multiple Coverings made of a heat-resistant, electrically high-quality paint, which intimate; with the second, a cover layer (3); higher heat dissipation capability As edier of the base layer, is connected, ide from several coverings of fillers containing varnish. 2. Leiter nach Anspruch i, dadurch gekennzeichnet, daß die Grundschicht (2) aus Polyamid, Polyvinylacetat od. dgl. oder aus Silicon-und ähnlichen hitzebeständigen organischen Siliciumverbindungen besteht und daß für die Deckschicht (3) die gleichen oder andere sich innig mit der Grundschicht (-) verbindende Lackbasen verwendet sind. 2. Ladder according to claim i, characterized in that that the base layer (2) made of polyamide, polyvinyl acetate or the like. Or made of silicone and similar heat-resistant organic silicon compounds and that for the top layer (3) the same or different intimately with the base layer (-) connecting lacquer bases are used. 3. Leiter nach Anspruch i. und 2; dadurch gekennzeichnet, daß dem Lack der Deckschicht als Füllmittel Aluminiumpulver, Aluminiumoxyd, Zinkoxyd; Kaolin, Schlakenwollemehl od. dgl. zugesetzt ist.3. Head according to claim i. and 2; through this characterized that the paint of the top layer as a filler aluminum powder, aluminum oxide, Zinc oxide; Kaolin, flaky wool flour or the like. Is added.
DES2322A 1950-03-19 1950-03-19 Electrical conductor with insulation with high thermal stability and conductivity Expired DE863224C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES2322A DE863224C (en) 1950-03-19 1950-03-19 Electrical conductor with insulation with high thermal stability and conductivity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES2322A DE863224C (en) 1950-03-19 1950-03-19 Electrical conductor with insulation with high thermal stability and conductivity

Publications (1)

Publication Number Publication Date
DE863224C true DE863224C (en) 1953-01-15

Family

ID=7469562

Family Applications (1)

Application Number Title Priority Date Filing Date
DES2322A Expired DE863224C (en) 1950-03-19 1950-03-19 Electrical conductor with insulation with high thermal stability and conductivity

Country Status (1)

Country Link
DE (1) DE863224C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1015511B (en) * 1955-02-15 1957-09-12 Giovanni Canegallo Method for wrapping switching elements with filler-containing insulating material
DE1018490B (en) * 1953-02-25 1957-10-31 Robert Hanning Multi-layer plastic coating for electrical coils or windings
DE969413C (en) * 1953-09-19 1958-05-29 Siemens Ag Electrical switching element with electrically insulating lacquer coating
DE1105933B (en) * 1955-09-12 1961-05-04 Westinghouse Electric Corp Heat-hardened synthetic resin pressed part intended for use as an electrical insulating part in the vicinity of electric arcs
DE975647C (en) * 1951-06-06 1962-03-29 Licentia Gmbh Coil winding for electrical machines and apparatuses particularly exposed to high impact loads
DE1213020B (en) * 1962-04-11 1966-03-24 Siemens Ag Process for the production of an enclosure for an electrical component or a component group
DE1255169B (en) * 1960-10-12 1967-11-30 Phelps Dodge Copper Prod Heat-resistant, multi-layer insulated electrical conductor wire for windings in electrical machines and apparatus
EP0238261A1 (en) * 1986-03-19 1987-09-23 Kabushiki Kaisha Toshiba Deflection device for a cathode ray tube

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975647C (en) * 1951-06-06 1962-03-29 Licentia Gmbh Coil winding for electrical machines and apparatuses particularly exposed to high impact loads
DE1018490B (en) * 1953-02-25 1957-10-31 Robert Hanning Multi-layer plastic coating for electrical coils or windings
DE969413C (en) * 1953-09-19 1958-05-29 Siemens Ag Electrical switching element with electrically insulating lacquer coating
DE1015511B (en) * 1955-02-15 1957-09-12 Giovanni Canegallo Method for wrapping switching elements with filler-containing insulating material
DE1105933B (en) * 1955-09-12 1961-05-04 Westinghouse Electric Corp Heat-hardened synthetic resin pressed part intended for use as an electrical insulating part in the vicinity of electric arcs
DE1255169B (en) * 1960-10-12 1967-11-30 Phelps Dodge Copper Prod Heat-resistant, multi-layer insulated electrical conductor wire for windings in electrical machines and apparatus
DE1213020B (en) * 1962-04-11 1966-03-24 Siemens Ag Process for the production of an enclosure for an electrical component or a component group
EP0238261A1 (en) * 1986-03-19 1987-09-23 Kabushiki Kaisha Toshiba Deflection device for a cathode ray tube
US4749975A (en) * 1986-03-19 1988-06-07 Kabushiki Kaisha Toshiba Cathode ray tube deflection device having heat dissipation means

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