EP0012277A1 - Carbon brush with insulated support and process for producing it - Google Patents

Carbon brush with insulated support and process for producing it Download PDF

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Publication number
EP0012277A1
EP0012277A1 EP79104759A EP79104759A EP0012277A1 EP 0012277 A1 EP0012277 A1 EP 0012277A1 EP 79104759 A EP79104759 A EP 79104759A EP 79104759 A EP79104759 A EP 79104759A EP 0012277 A1 EP0012277 A1 EP 0012277A1
Authority
EP
European Patent Office
Prior art keywords
carbon brush
insulated support
end region
producing
insulating
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.)
Withdrawn
Application number
EP79104759A
Other languages
German (de)
French (fr)
Inventor
Manfred Lösch
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.)
Rekofa Wenzel & Co Kg GmbH
Original Assignee
Rekofa Wenzel & Co Kg GmbH
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 Rekofa Wenzel & Co Kg GmbH filed Critical Rekofa Wenzel & Co Kg GmbH
Publication of EP0012277A1 publication Critical patent/EP0012277A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/12—Manufacture of brushes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/38—Brush holders
    • H01R39/39—Brush holders wherein the brush is fixedly mounted in the holder

Definitions

  • the invention has for its object to provide a method for producing a carbon brush with an insulating bracket and a carbon brush, in which, while avoiding the aforementioned disadvantages, not only a secure attachment between the carbon brush and the insulating bracket is achieved, but also with regard to the carbon brush their contact safety and the achievable, comparatively large creepage and clearance distances is further improved.
  • the carbon brush is introduced into a tool of a plastics processing machine and in this in one end region it is covered with a plastic to form the insulating holder.
  • Thermo. Can be used as plastics for the insulating bracket plastics or thermosets are used.
  • a perfect connection between the carbon brush and the insulating holder is achieved, with a fastening cam, a round bolt or the like advantageously being attached to the insulating holder. is molded so that it can be used for attachment to a lever arm or a housing.
  • the method according to the invention ensures that the carbon brush is safe to touch in the area of the insulation and that comparatively large creepage distances and clearances can be reached to the next current-carrying part or mass part.
  • the sheathing with plastic is carried out according to known plastic processing methods.
  • the invention further extends to a carbon brush with an insulating holder, which is fastened in one end region by positive locking in the insulating holder.
  • the positive connection can be achieved by the shape of carbon brushes on the one hand and the insulating holder on the other hand, but also by the provision of recesses, through holes, ribs, cams or the like. in one end of the carbon brush.
  • the carbon brush has a flat tongue or a connecting line for the power connection.
  • the flat tongue can be connected to the carbon brush as a solder, screw or plug connection or the like.
  • the connecting line can be attached directly to the carbon brush by soldering, riveting or clamping.
  • connection line 3 or the power connection tab 4 or the like by soldering, riveting, clamping. be attached.
  • Fig. 5 the carbon brush 1 is shown with the through holes 7, which are used to connect the insulating bracket 2 and to attach the carbon brush 1.
  • the fastening cams 5 and round bolts 6 are used to fasten the insulating bracket to a lever arm or housing, which is not shown further.
  • the carbon brushes with insulating holder produced and constructed according to the invention can be used for leg holders or else in conductor rail construction or other special embodiments.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

The invention is based on the object of producing a carbon brush with insulated support and a process for producing it, which not only allow a more secure attachment between the carbon brush and the insulated support, but also improve the carbon brush with respect to its contact safety and the achievement of comparatively large leakage paths and air gaps. According to the process, this is achieved in that the carbon brush (1) is fitted in a tool of a plastic processing machine and receives therein a shroud of plastic in its one end region, for forming the insulated support (2). The carbon brush (1) is attached in the insulated support by a lock formed by the shape of its one end region. The carbon brush is provided with depressions, through-boreholes (7), ribs, cams or such like in its one end region used for attachment. Furthermore, this carbon brush has a flat tongue (4) or a terminal lead (3). <IMAGE>

Description

Es ist bekannt, Kohlebürsten in Isolierhalterungen durch Schraubung, Klemmung oder Nietung zu befestigen. Diese bekannten Befestigungsarten haben jedoch den Nachteil, daß die Kohlebürsten vergleichsweise aufwendige Formen und/oder Armaturen besitzen mußten, um überhaupt eine Befestigung durchführen zu können. Außerdem erwies es sich als nachteilig, daß eine feste Verbindung nicht mit Sicherheit gewährleistet war.It is known to fix carbon brushes in insulating mounts by screwing, clamping or riveting. However, these known types of fastening have the disadvantage that the carbon brushes had to have comparatively complex shapes and / or fittings in order to be able to carry out fastening at all. In addition, it turned out to be disadvantageous that a firm connection was not guaranteed with certainty.

Von diesem Stand der Technik ausgehend liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zur Herstellung einer Kohlebürste mit Isolierhalterung sowie eine Kohlebürste zu schaffen, bei welcher unter Vermeidung vorerwähnter Nachteile nicht nur eine sichere Befestigung zwischen Kohlebürste und Isolierhalterung erreicht wird, sondern auch die Kohlebürste hinsichtlich ihrer Berührungssicherheit und der erzielbaren, vergleichsweise großen Kriech- und Luftstrecken weiter verbessert wird.Based on this prior art, the invention has for its object to provide a method for producing a carbon brush with an insulating bracket and a carbon brush, in which, while avoiding the aforementioned disadvantages, not only a secure attachment between the carbon brush and the insulating bracket is achieved, but also with regard to the carbon brush their contact safety and the achievable, comparatively large creepage and clearance distances is further improved.

Gemäß der Erfindung wird dies dadurch erreicht, daß die Kohlebürste in ein Werkzeug einer Kunststoffverarbeitungsmaschine eingebracht und in diesem in seinem einen Endbereich zur Bildung der Isolierhalterung eine Ummantelung mit einem Kunststoff erfährt. Als Kunststoffe für die Isolierhalterung können Thermoplaste oder Duroplaste Verwendung finden. Auf diese Weise wird eine einwandfreie Verbindung zwischen Kohlebürste und Isolierhalterung erreicht, wobei an die Isolierhalterung vorteilhaft ein Befestigungsnocken, ein Rundbolzen od.dgl. angeformt ist, so daß diese zur Befestigung an einem Hebelarm oder einem Gehäuse dienen kann. Durch das erfindungsgemäße Verfahren wird erreicht, daß die Kohlebürste im Bereich der Isolation berührungssicher ist und vergleichsweise große Kriech-und Luftstrecken bis zum nächsten stromführenden Teil oder Masseteil erreicht werden.According to the invention, this is achieved in that the carbon brush is introduced into a tool of a plastics processing machine and in this in one end region it is covered with a plastic to form the insulating holder. Thermo. Can be used as plastics for the insulating bracket plastics or thermosets are used. In this way, a perfect connection between the carbon brush and the insulating holder is achieved, with a fastening cam, a round bolt or the like advantageously being attached to the insulating holder. is molded so that it can be used for attachment to a lever arm or a housing. The method according to the invention ensures that the carbon brush is safe to touch in the area of the insulation and that comparatively large creepage distances and clearances can be reached to the next current-carrying part or mass part.

Nach einem weiteren Merkmal der Erfindung können mehrere Kohlebürsten jeweils in einem Werkzeug angeordnet sein.According to a further feature of the invention, several carbon brushes can each be arranged in one tool.

Die Ummantelung mit Kunststoff erfolgt nach bekannten Kunststoff verarbeitungsverfahren.The sheathing with plastic is carried out according to known plastic processing methods.

Die Erfindung erstreckt sich weiterhin auf eine Kohlebürste mit Isolierhalterung, die in ihrem einen Endbereich durch Formschluß in der Isolierhalterung befestigt ist. Der Formschluß kann durch die Formgebung von Kohlebürsten einerseits und Isolierhalterung andererseits erreicht werden, oder aber auch durch die Anbringung von Vertiefungen, Durchtrittsbohrungen, Rippen, Nocken od.dgl. im einen Endbereich der Kohlebürste.The invention further extends to a carbon brush with an insulating holder, which is fastened in one end region by positive locking in the insulating holder. The positive connection can be achieved by the shape of carbon brushes on the one hand and the insulating holder on the other hand, but also by the provision of recesses, through holes, ribs, cams or the like. in one end of the carbon brush.

Nach einem weiteren Vorschlag der Erfindung weist die Kohlebürste eine Flachzunge oder eine Anschlußleitung für den Stromanschluß auf. Die Flachzunge kann mit der Kohlebürste als Löt-, Schraub- oder Steckanschluß oder ähnlich verbunden sein. Die Anschlußleitung kann direkt an der Kohlebürste durch Löten, Nieten oder Klemmen befestigt sein.According to a further proposal of the invention, the carbon brush has a flat tongue or a connecting line for the power connection. The flat tongue can be connected to the carbon brush as a solder, screw or plug connection or the like. The connecting line can be attached directly to the carbon brush by soldering, riveting or clamping.

Ausführungsbeispiele der Erfindung sind an Hand der Zeichnung näher erläutert, und zwar zeigt:

  • Fig. 1 eine Ansicht der Kohlebürste mit Isolierhalterung einschl. Befestigungsnocken und Anschlußleitung,
  • Fig. 2 eine Seitenansicht der Fig. 1,
  • Fig. 3 eine Ansicht der Kohlebürste mit Isolierhalterung einschl. Rundbolzen für die Befestigung und Stromanschlußlasche,
  • Fig. 4 eine Seitenansicht der Fig. 3,
  • Fig. 5 eine Ansicht der Kohlebürste mit Stromanschlußlasche ohne Isolierhalterung und
  • Fig. 6 eine Seitenansicht der Fig. 5.
Embodiments of the invention are explained in more detail with reference to the drawing, which shows:
  • 1 is a view of the carbon brush with insulating bracket including mounting cams and connecting line,
  • 2 is a side view of FIG. 1,
  • 3 is a view of the carbon brush with insulating holder including round bolts for fastening and power connection lug,
  • 4 is a side view of FIG. 3,
  • Fig. 5 is a view of the carbon brush with a power connection tab without an insulating bracket and
  • 6 is a side view of FIG. 5th

Mit 1 ist die Kohlebürste bezeichnet, welche in einer Isolierhalterung 2 durch Formschluß befestigt ist. In den dargestellten Ausführungsbeispielen wird der Formschluß bewirkt durch die in der Kohlebürste 1 vorgesehenen Durchtrittsbohrungen 7, welche bei der Ummantelung mit Kunststoff sich mit diesem Material füllen, so daß eine sichere Verankerung erreicht wird. An der Kohlebürste kann die Anschlußleitung 3 oder die Stromanschlußlasche 4 durch Löten, Nieten, Klemmen od.dgl. befestigt sein.1 with the carbon brush is designated, which is fixed in an insulating holder 2 by positive locking. In the illustrated exemplary embodiments, the positive connection is brought about by the through holes 7 provided in the carbon brush 1, which fill with this material during the sheathing with plastic, so that secure anchoring is achieved. On the carbon brush, the connection line 3 or the power connection tab 4 or the like by soldering, riveting, clamping. be attached.

In Fig. 5 ist die Kohlebürste 1 mit den durchgehenden Bohrungen 7 gezeigt, die zur Verbindung der Isolierhalterung 2 und zur Befestigung der Kohlebürste 1 dienen.In Fig. 5, the carbon brush 1 is shown with the through holes 7, which are used to connect the insulating bracket 2 and to attach the carbon brush 1.

Die Befestigungsnocken 5 und Rundbolzen 6 dienen der Befestigung der Isolierhalterung an einem Hebelarm oder Gehäuse, was nicht weiter dargestellt ist.The fastening cams 5 and round bolts 6 are used to fasten the insulating bracket to a lever arm or housing, which is not shown further.

Die erfindungsgemäß hergestellten und aufgebauten Kohlebürsten mit Isolierhalterung können bei Schenkelhaltern oder aber auch im Schleifleitungsbau oder sonstigen speziellen Ausführungsformen Verwendung finden.The carbon brushes with insulating holder produced and constructed according to the invention can be used for leg holders or else in conductor rail construction or other special embodiments.

Claims (6)

1. Verfahren zur Herstellung einer Kohlebürste mit einer Isolierhalterung, dadurch gekennzeichnet, daß die Kohlebürste (1) in ein Werkzeug einer Kunststoffverarbeitungsmaschine eingebracht und in diesem in seinem einen Endbereich zur Bildung der Isolierhalterung (2) eine Ummantelung mit einem Kunststoff erfährt.1. A method for producing a carbon brush with an insulating holder, characterized in that the carbon brush (1) is introduced into a tool of a plastic processing machine and in this in one end region to form the insulating holder (2) undergoes a sheathing with a plastic. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß an die Isolierhalterung (2) ein Befestigungsnocken (5), ein Rundbolzen (6) od.dgl. angeformt ist.2. The method according to claim 1, characterized in that on the insulating bracket (2), a fastening cam (5), a round bolt (6) or the like. is molded. 3. Verfahren nach Anspruch 1 und/oder 2, dadurch gekennzeich- net, daß mehrere Kohlebürsten (1) in einem Werkzeug angeordnet und je mit einer Isolierhalterung versehen werden.3. The method according to claim 1 and / or 2, characterized ekennzeich- g net that a plurality of carbon brushes (1) are arranged in a mold and each provided with an insulating support. 4. Kohlebürste mit Isolierhalterung, vorzugsweise hergestellt nach dem Verfahren gemäß Anspruch 1 und/oder einem oder mehreren der folgenden, dadurch gekennzeichnet, daß die Kohlebürste (1) mit ihrem einen Endbereich durch Formschluß in der Isolierhalterung (2) befestigt ist.4. Carbon brush with insulating holder, preferably produced by the method according to claim 1 and / or one or more of the following, characterized in that the carbon brush (1) is fixed with one end region by positive locking in the insulating holder (2). 5. Kohlebürste nach Anspruch 4, dadurch gekennzeichnet, daß diese in ihrem einen der Befestigung dienenden Endbereich mit Vertiefungen, Durchtrittsbohrungen (7), Rippen, Nocken od.dgl. Versehen ist.5. Carbon brush according to claim 4, characterized in that it serves in its one fastening area with recesses, through holes (7), ribs, cams or the like. Is mistaken. 6. Kohlebürste nach Anspruch 4 und/oder 5, dadurch gekennzeichnet, daß diese eine Flachzunge (4) oder eine Anschlußleitung (3) aufweist.6. Carbon brush according to claim 4 and / or 5, characterized in that it has a flat tongue (4) or a connecting line (3).
EP79104759A 1978-12-13 1979-11-29 Carbon brush with insulated support and process for producing it Withdrawn EP0012277A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782853721 DE2853721A1 (en) 1978-12-13 1978-12-13 CARBON BRUSH WITH INSULATION HOLDER AND METHOD FOR THEIR PRODUCTION
DE2853721 1978-12-13

Publications (1)

Publication Number Publication Date
EP0012277A1 true EP0012277A1 (en) 1980-06-25

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Application Number Title Priority Date Filing Date
EP79104759A Withdrawn EP0012277A1 (en) 1978-12-13 1979-11-29 Carbon brush with insulated support and process for producing it

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EP (1) EP0012277A1 (en)
DE (1) DE2853721A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316067C2 (en) * 1983-05-03 1986-07-03 Mannesmann AG, 4000 Düsseldorf Pantograph

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE620087C (en) * 1933-05-24 1935-10-14 Ottomar Kasperowski Dr Ing Layered carbon brush for direct or alternating current collector machines
DE762304C (en) * 1942-05-19 1951-11-08 Ottomar Dr-Ing Kasperowski Contact brush consisting of individual layers
DE6603236U (en) * 1966-12-28 1969-08-28 Lorraine Carbone BRUSH FOR ELECTRICAL MACHINERY AND METHOD FOR THEIR PRODUCTION.
FR2347800A1 (en) * 1976-04-09 1977-11-04 Lucas Industries Ltd PROCESS FOR MAKING A BROOM FOR A DYNAMO-ELECTRIC MACHINE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE620087C (en) * 1933-05-24 1935-10-14 Ottomar Kasperowski Dr Ing Layered carbon brush for direct or alternating current collector machines
DE762304C (en) * 1942-05-19 1951-11-08 Ottomar Dr-Ing Kasperowski Contact brush consisting of individual layers
DE6603236U (en) * 1966-12-28 1969-08-28 Lorraine Carbone BRUSH FOR ELECTRICAL MACHINERY AND METHOD FOR THEIR PRODUCTION.
FR2347800A1 (en) * 1976-04-09 1977-11-04 Lucas Industries Ltd PROCESS FOR MAKING A BROOM FOR A DYNAMO-ELECTRIC MACHINE

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Publication number Publication date
DE2853721A1 (en) 1980-07-17

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19810407

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Inventor name: LOESCH, MANFRED