DE745938C - Collector for electrical machines with fins made of a material other than copper - Google Patents

Collector for electrical machines with fins made of a material other than copper

Info

Publication number
DE745938C
DE745938C DEZ24698D DEZ0024698D DE745938C DE 745938 C DE745938 C DE 745938C DE Z24698 D DEZ24698 D DE Z24698D DE Z0024698 D DEZ0024698 D DE Z0024698D DE 745938 C DE745938 C DE 745938C
Authority
DE
Germany
Prior art keywords
lamellas
collector
copper
brush
electrical machines
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
DEZ24698D
Other languages
German (de)
Inventor
Albert Binnewies
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.)
Ziehl Abegg SE
Original Assignee
Ziehl Abegg SE
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 Ziehl Abegg SE filed Critical Ziehl Abegg SE
Priority to DEZ24698D priority Critical patent/DE745938C/en
Application granted granted Critical
Publication of DE745938C publication Critical patent/DE745938C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00Rotary current collectors, distributors or interrupters
    • H01R39/02Details for dynamo electric machines
    • H01R39/04Commutators
    • H01R39/045Commutators the commutators being made of carbon

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Description

Kollektor für elektrische Maschinen, der Lamellen aus anderem Material als Kupfer aufweist Die Kollektoren für Gleichstrom- und Wechselstrommäschinen besitzen in der Regel Lamellen aus Hartkupfer. Die auf einem solchen Kollektor gleitenden Kohle- oder Metallbürsten schließen nun je nach ihrer Auflagefläche zwei oder mehrere Lamellen und damit die mit diesen verbundenen Anker-Wicklungen kurz, so daß zwischen den kurzgeschlossenenLamellen verhältnismäßig starke Kurzschlußsträme auftreten, deren Unterbrechung beim Lauf des Kollektors ein Bürstenfeuer hervorruft. Das Bürstenfeuer macht sich besonders bei Maschinen für höhere Spannurig, wo die Lamellenspannung verhältnismäßig hoch ist, unangenehm bemerkbar und erschwert die funkenfreie Kom= mutierung derartiger Maschinen. Das Bürstenfeuer bewirkt nun nicht nur eine starke Erwärmung und vorzeitige Abnützung des Kollektors, sondern verursacht auch Störfelder, die besonders bei Maschinen für radiotechnische Zwecke vermieden werden müssen.Collector for electrical machines, the lamellas made of other material than copper has the collectors for direct current and alternating current machines usually lamellas made of hard copper. Those sliding on such a collector Carbon or metal brushes now close two or more depending on their contact surface Lamellae and thus the armature windings associated with them short, so that between Relatively strong short-circuit currents occur in the short-circuited lamellas, the interruption of which causes a brush fire when the collector is running. The brush fire is particularly suitable for machines for higher clamping, where the lamellar tension is relatively high, noticeable unpleasantly and makes spark-free communication more difficult mutation of such machines. The brush fire now not only causes a strong one Warming up and premature wear of the collector, but also causes interference fields, which must be avoided especially with machines for radio technical purposes.

Aufgabe der Erfindung ist es, einen Kollektor zu schaffen, bei dem praktisch kein Bürstenfeuer auftritt. Erfindungsgemäß wird das dadurch erreicht, daß die Lamellen zur Verminderung des Kurzschlußstromes zwischen zwei Lamellen und damit der Funkenbildung unter den Bürsten aus Widerstandsmaterial mit geringerem Leitwert als Kupfer bestehen.The object of the invention is to create a collector in which practically no brush fire occurs. According to the invention this is achieved by that the slats to reduce the short-circuit current between two slats and thus sparking under the brushes made of resistance material with less Conductance exist as copper.

Es sind bereits Kollektoren mit Lamellen aus anderem Material als Kupfer, beispielsweise aus Eisen, bekannt. Diese Lamellenmateralien sind hier jedoch.nicht mit Rücksicht auf ihren geringeren Leitwert als Kupfer ver-Nvendet worden.There are already collectors with fins made of a different material than Copper, for example from iron, is known. However, these lamellar materials are not here has been used as copper in view of its lower conductance.

Als Widerstandsmaterial für die Lamellen eines Kollektors gemäß der Erfindung kommen neben Metallen mit geringerem Leitwert als Kupfer auch Hartkohle in Frage, deren verhältnismäßig hoher elektrischer Widerstand den Kurzschlußstrom zwischen zwei Lamellen derart herabsetzt, daß eine Funkenbildung nicht mehr oder nur noch in geringem Maße auftritt. Bei Verwendung von Lamellen aus Kohle werden zweckmäßig die Lamellenenden, die für den Anschluß der As resistance material for the lamellas of a collector according to the invention, in addition to metals with a lower conductance than copper, hard carbon can also be used, whose relatively high electrical resistance reduces the short-circuit current between two lamellas in such a way that sparking no longer occurs or only to a small extent. When using lamellas made of carbon, the ends of the lamellae, which are used for the connection of the

Claims (3)

PATENTANSPRÜCHE: i. Kollektor für elektrische Maschinen, der Lamellen aus anderem 1laterial als Kupfer auflveist, dadurch gekennzeichnet, daß. zur Verminderung des Kurzschlußstromes zwischen zwei Lamellen und damit der Funkenbildung unter den Bürsten die Lamellen aus Widerstandsmaterial mit geringerem Leitwert als Kupfer bestehen. PATENT CLAIMS: i. Collector for electrical machines, the lamellae made of material other than copper, characterized in that. to reduce the short-circuit current between two lamellas and thus the formation of sparks under the Brush the fins made of resistance material with a lower conductivity than copper exist. 2. Kollektor nach Anspruch i, dadurch gekennzeichnet, daß der Widerstand der Lamellen, gerechnet vom Wicklungsanschluß an den Lamellen bis zur Auflagestelle der Bürste, durch Verschieben der Bürste in der Längsrichtung des Kollektors regelbar ist. 2. Collector according to claim i, characterized in that the resistor of the lamellas, calculated from the winding connection on the lamellas to the contact point the brush, adjustable by moving the brush in the longitudinal direction of the collector is. 3. Kollektor nach Anspruch i und 2, dadurch gekennzeichnet, daß als Widerstandsmaterial für die Lamellen Kohle verwendet wird: Kollektor nach Anspruch 3, dadurch gekennzeichnet, daß die aus Kohle bestehenden Lamellen an den Enden, die für den _\nschluß der Wicklung bestimmt sind, metallisiert sind. Zur Abgrenzung des Amneldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: deutsche Patentschriften .... N r. 63 622, 298 288, insbes. Abs. i ; »Elektrotechnilz und Maschinenbau«, vom i_(,. Februar iyie@, S. 67 und 68.3. Collector according to claim i and 2, characterized in that carbon is used as resistance material for the lamellas: Collector according to claim 3, characterized in that the lamellas made of carbon at the ends which are intended for the _ \ nschluss of the winding , are metallized. To distinguish the subject of the notification from the state of the art, the following publications were taken into account in the granting procedure: German patents .... N o. 63 622, 298 288, especially Paragraph i; »Elektrotechnilz und Maschinenbau«, from i_ (, February iyie @, pp. 67 and 68.
DEZ24698D 1938-07-23 1938-07-23 Collector for electrical machines with fins made of a material other than copper Expired DE745938C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ24698D DE745938C (en) 1938-07-23 1938-07-23 Collector for electrical machines with fins made of a material other than copper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ24698D DE745938C (en) 1938-07-23 1938-07-23 Collector for electrical machines with fins made of a material other than copper

Publications (1)

Publication Number Publication Date
DE745938C true DE745938C (en) 1944-05-24

Family

ID=7626214

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ24698D Expired DE745938C (en) 1938-07-23 1938-07-23 Collector for electrical machines with fins made of a material other than copper

Country Status (1)

Country Link
DE (1) DE745938C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE298288C (en) *
DE63622C (en) * F. A. HASELWANDER in Offenburg, Baden Collector made of coal for electrical machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE298288C (en) *
DE63622C (en) * F. A. HASELWANDER in Offenburg, Baden Collector made of coal for electrical machines

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