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DE540858C - Insulating cover for electrically conductive bodies - Google Patents

Insulating cover for electrically conductive bodies

Info

Publication number
DE540858C
DE540858C DE1930540858D DE540858DD DE540858C DE 540858 C DE540858 C DE 540858C DE 1930540858 D DE1930540858 D DE 1930540858D DE 540858D D DE540858D D DE 540858DD DE 540858 C DE540858 C DE 540858C
Authority
DE
Germany
Prior art keywords
electrically conductive
insulating cover
conductive bodies
insulation
conductive body
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
DE1930540858D
Other languages
German (de)
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.)
C Conradty Nuernberg GmbH and Co KG
Original Assignee
C Conradty Nuernberg GmbH and Co KG
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 C Conradty Nuernberg GmbH and Co KG filed Critical C Conradty Nuernberg GmbH and Co KG
Application granted granted Critical
Publication of DE540858C publication Critical patent/DE540858C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/185Substances or derivates of cellulose

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulating Bodies (AREA)

Description

Isolierender Überzug für elektrisch leitfähige Körper Zur Isolation von elektrisch leitfähigen Körpern, insbesondere von Widerstandsstäben, Dynamobürsten oder Einzelteilen von elektrischen Apparaten, sind die verschiedenartigsten Werkstoffe bekannt geworden. Die häufigst angewendeten Verfahren bestehen darin, Lacküberzüge anzubringen oder die Gegenstände mit Papier, Leinen u. dgl. zu umwickeln und darüber einen Schutzüberzug aufzutragen. Es werden aber auch Plättchen von Glimmer oder Preßspan u. dgl. verwendet.Insulating cover for electrically conductive bodies For insulation of electrically conductive bodies, in particular resistance bars, dynamo brushes or individual parts of electrical apparatus, are the most diverse materials known. The most common methods are to apply varnish coatings to attach or to wrap the objects with paper, linen, etc. and over it apply a protective coating. But there are also platelets of mica or Pressboard and the like are used.

Alle diese Arten der Isolierung zeigen jedoch verschiedene Nachteile. Bei der Lackisolierung springen leicht kleinere Teile ab, wodurch die Gesamtisolation hinfällig wird, während das Umwickeln von Gegenständen zeitraubend und kostspielig ist, insbesondere dann, wenn es sich um Einzelteile handelt, bei denen der Abschluß der Wicklung Schwierigkeiten bereitet. Weiterhin benötigen Isolationen mittels Wicklung und nachträglichem Lacküberzug oft recht umständliche Apparaturen, während Glimmer und ähnliche Isolationen immer noch besonderer Befestigung bedürfen. Bei allen bisher verwendeten Lackisolierungen, sei es nun ein Cellon-, Harz-oder Öllack, kommt noch dazu, daß das flüssig aufgetragene Isoliermittel leicht in die Poren des zu überziehenden Leiters, z. B. eines Widerstandsstabes, eindringt und die Leitfähigkeit und somit den Widerstandswert des Stabes verändert.However, all of these types of insulation have various disadvantages. In the case of the lacquer insulation, smaller parts easily jump off, thereby reducing the overall insulation obsolete, while wrapping objects becomes time consuming and costly is, especially when it comes to individual parts in which the conclusion the winding causes difficulties. Furthermore you need insulation by means of winding and subsequent coating of varnish are often very cumbersome apparatus, while mica and similar insulation still require special fastening. With all so far The lacquer insulation used, be it cellon, resin or oil lacquer, is yet to come to the fact that the liquid applied isolating agent easily into the pores of the to be coated Conductor, e.g. B. a resistance rod, penetrates and the conductivity and thus changes the resistance of the rod.

Alle diese Nachteile werden durch das erfindungsgemäße Verfahren ausgeschlossen. Man bedient sich dabei nicht mehr einer Lösung des Isolationsmittels, die aufzustreichen ist, sondern überzieht den Körper mit einem in bekannter Weise hergestellten, noch feuchten Schlauch oder einer Kappe aus Hydrocellulose und bewirkt durch Luft- oder Ofentrocknung eine Schrumpfung der Häutchen, die sich dadurch der Form des überzogenen Körpers anpassen und sich unbeweglich und festsitzend an die Oberfläche des Leiters anschmiegen. Bei der Dicke und Elastizität der Häutchen besteht auch keine Gefahr, ähnlich der bei Lacküberzügen, daß kleine Stellen abspringen und die Isolationswirkung des Überzuges beeinträchtigt wird. Weiterhin erhält der so isolierte Körper ein äußerst gefälliges Aussehen, da die Häutchen in den verschiedensten Farben hergestellt werden können.All these disadvantages are eliminated by the method according to the invention. One no longer uses a solution of the isolating agent to spread it on is, but coats the body with a manufactured in a known manner, still moist hose or a cap made of hydrocellulose and effected by air or Oven drying is a shrinkage of the skin, which changes the shape of the coated one Body adapt and become immobile and stuck to the surface of the conductor snuggle up. With the thickness and elasticity of the membranes, there is also no risk of similar to that of lacquer coatings, that small spots pop off and the insulating effect of the coating is impaired. Furthermore, the body isolated in this way receives a extremely pleasing appearance, as the skins are made in a wide variety of colors can be.

Claims (1)

PATENTANSPRUCH: Isolierender Überzug für elektrisch leitfähige Körper verschiedenen Materials, insbesondere Widerstandsstäbe, Dynamobürsten oder Einzelteile für elektrische Apparate, dadurch gekennzeichnet, daß ein aus an sich bekannter Hydrocellulose bestehender Überzug in Form einer Kappe oder eines Schlauches u. dgl. hergestellt und im feuchten Zustand auf den leitfähigen Körper so aufgebracht wird, daß er bei nachträglicher Trocknung den leitfähigen Körper fest umschließt.PATENT CLAIM: Insulating cover for electrically conductive bodies different materials, especially resistance bars, dynamo brushes or individual parts for electrical apparatus, characterized in that a known per se Hydrocellulose existing coating in the form of a cap or a tube and. Like. Manufactured and applied in the wet state to the conductive body is that it tightly encloses the conductive body when it is subsequently dried.
DE1930540858D 1930-01-25 1930-01-25 Insulating cover for electrically conductive bodies Expired DE540858C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE540858T 1930-01-25

Publications (1)

Publication Number Publication Date
DE540858C true DE540858C (en) 1931-12-31

Family

ID=6559074

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930540858D Expired DE540858C (en) 1930-01-25 1930-01-25 Insulating cover for electrically conductive bodies

Country Status (1)

Country Link
DE (1) DE540858C (en)

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