DE875078C - Tandem brush holder - Google Patents

Tandem brush holder

Info

Publication number
DE875078C
DE875078C DES13397D DES0013397D DE875078C DE 875078 C DE875078 C DE 875078C DE S13397 D DES13397 D DE S13397D DE S0013397 D DES0013397 D DE S0013397D DE 875078 C DE875078 C DE 875078C
Authority
DE
Germany
Prior art keywords
brush holder
tandem
brush
brushes
holder according
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
DES13397D
Other languages
German (de)
Inventor
Karl Dr-Ing Toefflinger
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 DES13397D priority Critical patent/DE875078C/en
Application granted granted Critical
Publication of DE875078C publication Critical patent/DE875078C/en
Expired legal-status Critical Current

Links

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
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/38—Brush holders
    • H01R39/381—Brush holders characterised by the application of pressure to brush

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Description

Bei den bekannten-insbesondere für Stromweridermaschin.en verwendeten Tandembürstenhaltern, d. h. Bürstenhaltern mit zwei oder mehr in der Umfangsrichtung des Stromwenders hintereinanderlieg .enden, parallel geschalteten Bürsten, - können sich Kurzschlußströme über die Stromzuführungen der Bürsten schließen. Kleine Spannungsunterschiede lösen daher starke Kurzschlußströme aus. Eine schlechte Stromwendung und ungleiche Bürstenbelastung sind- die Folge.In the known - especially used for Stromweridermaschin.en Tandem brush holders, d. H. Brush holders with two or more in the circumferential direction of the commutator, one behind the other .brushes connected in parallel, - can short-circuit currents close via the power supply lines to the brushes. Small differences in tension therefore trigger strong short-circuit currents. A bad turnaround and uneven Brush loads are the result.

Diese Nachtgeile werden gemäß der Erfindung dadurch vermieden, daß, der Strom jeder einzelnen Bürste über in :auf diese lose aufsitzendes Druckstück zugeführt wird. Auf diese Weise wird die Stromwendung wesentlich verbessert. Zur Auslösung von Kurzs.chlußstr ömen sind bedeutend größere Spannungen als bisher,erforderlich. Außerdem wird damit eine Vergleichsmäßigung der Stromverteilung erzielt.These night horns are avoided according to the invention in that, the current of each individual brush in: on this loosely seated pressure piece is fed. In this way the current reversal is significantly improved. To the The triggering of short-circuit currents requires significantly higher voltages than before. In addition, the power distribution is evened out in this way.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Auf dem Stromwender i einer elektrischen Maschine gleiten die Bürsten 2 eines Tandembürstenhalters 3. Gemäß der Erfindung wird der Strom jeder einzelnen Bürste über ein sauf dieser lose aufsitzendes Dnickstück ¢ zugeleitet, an dem im vorliegenden Fall die Stromzuführungen 5 befestigt sind. Der Strom kann jedoch auch in üblicher Weise über Druckhebel zugeleitet werden; die dann auf den Druckstücken q. aufruhen. Mit besonderem Vorteil grenzen Druckstücke und Bürsten mit zur Bürstenachse schrägen Flächen aneinander. Damit wird erreicht, daß die Bürsten an eine Wand ihrer Tasche ,gedrückt und Vibrationen der Bürsten verhindert werden.An exemplary embodiment of the invention is shown in the drawing. The brushes 2 of a tandem brush holder slide on the commutator i of an electrical machine 3. According to the invention, the current of each individual brush is fed to it loosely seated neck piece ¢, to which the power supply in the present case 5 are attached. However, the current can also be fed in in the usual way via pressure levers will; which then on the pressure pieces q. to riot. Limit with particular advantage Pressure pads and brushes with surfaces inclined to the brush axis against each other. In order to it is achieved that the brushes are pressed against a wall of their pocket, and vibrations the brushes can be prevented.

Das Druckstück kann je nach den erforderlichen Widerständen aus Kohle oder Metall hergestellt werden. Ferner können die Bürsbentaschexi voneinander isoliert sein. Zwischen den Druckstücken und den Bürsten können zur Erhöhung des Widerstandes eine oder mehr Platten eingeschaltet werden, die ebenfalls aus Kohle oder Metall bestehen können.Depending on the required resistances, the pressure piece can be made of carbon or metal. Furthermore, the Bürsbentaschexi can be isolated from one another be. Between the pressure pieces and the brushes you can increase the resistance one or more plates are switched on, which are also made of carbon or metal can exist.

Claims (3)

PATENTANSPR ÜciIr,: i. Tandembürstenhalter, insbesondere für Stromwendermaschinen, dadurch gekennzeichnet, daß der Strom jeder einzelnen Bürste über ,ein auf dieser lose aufsitzendes Druckstück zugeführt wird. PATENT CLAIM: i. Tandem brush holder, especially for commutator machines, characterized in that the current of each individual brush over, one on this loosely seated pressure piece is fed. 2. Tandembürstenhalter nach Anspruch i, dadurch gekennzeichnet, daß Druckstücke und Bürsten mit zur Bürstenachse schrägen Flächen ;aneinander grenzen. 2. Tandem brush holder according to claim i, characterized in that pressure pieces and brushes are inclined to the brush axis Surfaces; adjoining each other. 3. Tandembürstenhalter nach Anspruch i oder 2,. dadurch gekennzeichnet, daß die Bürstentaschen voneinander isoliert sind. ¢. Tandembürstenhalter nach Anspruch i bis 3, dadurch gekennzeichnet, däß zwischen den Druckstücken und den Bürsten .mehrere Platten liegen.3. Tandem brush holder according to claim i or 2 ,. characterized in that the brush pockets are isolated from one another. ¢. Tandem brush holder according to Claims 1 to 3, characterized in that there are several plates between the pressure pieces and the brushes.
DES13397D 1944-05-11 1944-05-12 Tandem brush holder Expired DE875078C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES13397D DE875078C (en) 1944-05-11 1944-05-12 Tandem brush holder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE293781X 1944-05-11
DES13397D DE875078C (en) 1944-05-11 1944-05-12 Tandem brush holder

Publications (1)

Publication Number Publication Date
DE875078C true DE875078C (en) 1953-04-30

Family

ID=25781064

Family Applications (1)

Application Number Title Priority Date Filing Date
DES13397D Expired DE875078C (en) 1944-05-11 1944-05-12 Tandem brush holder

Country Status (1)

Country Link
DE (1) DE875078C (en)

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