DE875076C - Brush holders for electrical machines - Google Patents

Brush holders for electrical machines

Info

Publication number
DE875076C
DE875076C DES3460D DES0003460D DE875076C DE 875076 C DE875076 C DE 875076C DE S3460 D DES3460 D DE S3460D DE S0003460 D DES0003460 D DE S0003460D DE 875076 C DE875076 C DE 875076C
Authority
DE
Germany
Prior art keywords
lever
brush
power supply
electrical machines
holder
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
DES3460D
Other languages
German (de)
Inventor
Walter Dipl-Ing Schulze
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 DES3460D priority Critical patent/DE875076C/en
Application granted granted Critical
Publication of DE875076C publication Critical patent/DE875076C/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
    • H01R39/38Brush holders
    • H01R39/383Brush holders characterised by the electrical connection to the brush holder

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Description

Es sind Bürstenhalter für elektrische Maschinen, insbesondere für Kommutatormaschinen, bekannt, beidenen der Anpreßdruck der Kohlebürste an den Kommutator oder Schleifring von einer Feder mittels eines Hebels auf -die Bürste Übertragen wir& Gleichzeitig dient d-ieser Hebel zur Stromzuleitung von dem Halterkörper des Bürstenhalters zur Kohlebürste. Namentlich bei Bürstenfialtern für Bahnmotoren ist eine Stromzuleitung mit Hilfe von in die Kohle eiggestampften Litzen im Betrieb unbeliebt, weil durch diese Litzen häufig Überschläge verursacht werden. Aus diesem Grund zieht man eine Stromzuführung mit Hilfe desdie Kohlebürste an den Kommutator abpressenden Hebels vor. Da dieser Stromzuführungshebel gegenüber dem Halterkörper beweglich ist, so muß auch für eine Überleitung des Stromes von dem Halterkörper auf .den Hebel gesorgt werden. Bisher hat man für diese Strom.überleitung noch immerLitzen benutzt, trotzdem für dieseLitzen annähernd der -leiche Nachteil sich einstellt wie für Stromzuführungslitzen, die unmittelbar mit der Kohlebürste verbunden sind.There are brush holders for electrical machines, especially for Commutator machines, known, both have the contact pressure of the carbon brush on the commutator or slip ring transferred from a spring to the brush by means of a lever We & At the same time, this lever is used to supply power from the holder body the brush holder to the carbon brush. Especially with brush filters for rail motors is a power supply with the help of strands tamped into the coal in operation unpopular because these strands often cause flashovers. For this Reason you pull a power supply with the help of the carbon brush to the commutator pressing lever. Since this power supply lever opposite the holder body is movable, so must also for a transfer of the current from the holder body on the lever. So far, one has still had litz wires for this power transfer used, despite the fact that almost the same disadvantage arises for these strands as for power supply strands that are directly connected to the carbon brush.

Gemäß der Erfindung erfolgt daher an derartigen Bürstenhaltern die Stromzuleitung vom Halterkörper zu dem die Kohlebürste anden Kommutator anl)ressenden Hebel über den die Hebeldrehachse bildenden Bolzen, derdazu aus gu#t leitendem Werkstoff, vorzugsweise Kupfer, besteht.According to the invention therefore takes place on such brush holders Power supply from the holder body to which the carbon brush is connected to the commutator Lever via the bolt that forms the lever's axis of rotation, which is made of good conductive material, preferably copper.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung. i ist die Kohle.bürste eines Kommutatorniotors für Bahnbetrieb, die in dem Führungskasten:2 des Bürstenhalters gleitet. 3 ist ein um den Bolzen 4 drehbarer Hebel, der bei 5 die Kohlebürste an den Kommutator anpreßt. Zu diesem Zweck ist eine Druckfeder 6 vorgesehen, die -einerseits sich gegen den im Halterkörper des Bürstenhalters gelagerten Bolzen 7 stützt, andererseits gegen ein-en Bolzen 8, der an einem Hebelarm des Hebels 3 befestigt ist. Für die Stromzuführung zu dem Hebel 3 wird nun der Bolzen 4 für die Hebeldrehachse benutzt, Er besteht zu diesem Zweck aus einem elektrisch gut leitenden Metall. Vorzugsweise ist die Anordnungderart, daß beide Berührungsflächen des Druckhebellagers aus einem elektrisch gut leitenden Metall, wie Kupfer oder Silber, bestehen. Der Strom wird dann Über eine feste Verbindung ,dem Bolzen 7 unmittelbar oder über den Halterkörper 9 zugeführt und tritt über den Bolzen 4 zu dein Hebel 3 über. Von hier wird er mit Hilfe- von )iMetallb-ähdern io aus elektrisch gut leitendem Metall, wie Kupfer, zudem Kontakt 5 an dem E nde des Hebels 3 geleitet. Von dem Kontaktstück 5 tritt er dann auf die Kohlebürste i mit Hilfe eines metallischen Bolzens ii über, der in dem Kopf der Bürste i elektrisch gut leitend befestigt ist und gegen den sich das Kontaktstück 5 anlegt. Kontaktstück, 5 und Bolzen vi besitzen zu -diesem Zweck Oberflächen aus gut leitendem Metall, wie Kupfer oder Silber. Bei der Bewegung der Bürste i in den Führungskasten 2 infolge der Ahnutzung der Bürste findet ein Abrollen der Köntaktfläche des Bolzens i i auf der Kontaktfläche von 5 statt.The drawing shows an embodiment of the invention. i is the carbon brush of a commutator non-gate for railway operation, which slides in the guide box: 2 of the brush holder. 3 is a lever which can be rotated about the bolt 4 and which at 5 presses the carbon brush against the commutator. For this purpose a compression spring 6 is provided, which on the one hand is supported against the bolt 7 mounted in the holder body of the brush holder, and on the other hand against a bolt 8 which is attached to a lever arm of the lever 3 . For the power supply to the lever 3 , the bolt 4 is now used for the lever axis of rotation. For this purpose, it consists of a metal with good electrical conductivity. The arrangement is preferably such that both contact surfaces of the pressure lever bearing consist of a metal with good electrical conductivity, such as copper or silver. The current is then fed via a fixed connection to the bolt 7 directly or via the holder body 9 and passes via the bolt 4 to your lever 3 . From here it is with aid of) iMetallb-io ähdern of electrically highly conductive metal such as copper, also on the walls contact 5 E of the lever 3 passed. From the contact piece 5 it then passes over to the carbon brush i with the aid of a metallic bolt ii which is fastened in the head of the brush i with good electrical conductivity and against which the contact piece 5 rests. Contact piece, 5 and bolt vi have for this purpose surfaces made of highly conductive metal, such as copper or silver. During the movement of the brush i in the guide box 2 as a result of the brush Ahnutzung a rolling of the bolt Köntaktfläche ii on the contact surface of 5 takes place.

Claims (1)

PATENTANSPRÜCHF. i. Bürstenhalter für elektrische Maschinen, bei dem der Anpreßdruck der Kohlebürste an den Kommutator von einer Feder mittels eines Hebels auf die Bürste übertragen wird und die Stromzuleitung der Bürste über den Hebel erfolgt, dadurch gekennzeichnet, daß die Stromzuleitung vom Halterkörper des Bürstenhalters zu dem Hebel über den die Hebeldrehachse bil,denden Bolzen am Halterkörper erfolgt, der dazu aus gut leitendem Werkstoff, vorzugsweise Kupfer, besteht. :2. Anordnung nach Anspruch..i, dadurch gekennzeichnet, -daß beide Berührungsflächen des Hebeldrehlagers aus gut leitendem Metall, wie Kupfer oder Silber, bestehen.PATENT CLAIMS. i. Brush holder for electrical machines in which the contact pressure of the carbon brush on the commutator by a spring by means of a Lever is transferred to the brush and the power supply to the brush via the Lever takes place, characterized in that the power supply from the holder body of the Brush holder to the lever via which the lever axis of rotation bil, the bolts on the holder body takes place, which for this purpose consists of a highly conductive material, preferably copper. : 2. Arrangement according to Claim..i, characterized in that both contact surfaces of the lever pivot bearing made of highly conductive metal such as copper or silver.
DES3460D 1944-10-26 1944-10-26 Brush holders for electrical machines Expired DE875076C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES3460D DE875076C (en) 1944-10-26 1944-10-26 Brush holders for electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES3460D DE875076C (en) 1944-10-26 1944-10-26 Brush holders for electrical machines

Publications (1)

Publication Number Publication Date
DE875076C true DE875076C (en) 1953-04-30

Family

ID=7470161

Family Applications (1)

Application Number Title Priority Date Filing Date
DES3460D Expired DE875076C (en) 1944-10-26 1944-10-26 Brush holders for electrical machines

Country Status (1)

Country Link
DE (1) DE875076C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089872B (en) * 1955-06-23 1960-09-29 Lucas Industries Ltd Holding device for contact brushes or other contact elements on electrical machines
DE102012012300A1 (en) * 2012-06-20 2013-12-24 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Brush system of electric motor for adjustment drive e.g. window lifter of motor vehicle, has pivot element that is used to apply spring force about pivot axis of M-shaped reversing lever with respect to brushes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089872B (en) * 1955-06-23 1960-09-29 Lucas Industries Ltd Holding device for contact brushes or other contact elements on electrical machines
DE102012012300A1 (en) * 2012-06-20 2013-12-24 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Brush system of electric motor for adjustment drive e.g. window lifter of motor vehicle, has pivot element that is used to apply spring force about pivot axis of M-shaped reversing lever with respect to brushes

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