DE866527C - Brush holders for electrical machines - Google Patents

Brush holders for electrical machines

Info

Publication number
DE866527C
DE866527C DES3835D DES0003835D DE866527C DE 866527 C DE866527 C DE 866527C DE S3835 D DES3835 D DE S3835D DE S0003835 D DES0003835 D DE S0003835D DE 866527 C DE866527 C DE 866527C
Authority
DE
Germany
Prior art keywords
electrical machines
brush holders
spring
brush
pressure
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
DES3835D
Other languages
German (de)
Inventor
Cornelis Von Dijk
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 DES3835D priority Critical patent/DE866527C/en
Application granted granted Critical
Publication of DE866527C publication Critical patent/DE866527C/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

Die Erfindung -betrifft einen Bürstenhalter für elektrische Maschinen.The invention relates to a brush holder for electrical machines.

Es sind bereits Bürstenhalter für elektrische Maschinen bekanntgeworden, bei denen auf die Bürsten Federn einwirken. Die bekannten Bürstenhalter haben den Nachteil, daß der Druck der Druckfelder während des Betriebes allmählich nachläßt, so daß die Bürste schließlich in umgenügender Weise auf .den Kollektor gedrückt wird. Dies führt zu unerwünsohten und mangelhaften Stromübergängen, -die durch starkes Funken des Aggregates sichtbar werden.Brush holders for electrical machines have already become known, where springs act on the brushes. The well-known brush holders have the Disadvantage that the pressure of the pressure fields gradually decreases during operation, so that the brush finally pressed on the collector in an adequate manner will. This leads to undesired and defective current transitions, -that by strong Sparks of the unit become visible.

Gemäß der vorliegenden Erfindung wird dem vorerwähnten Nachteil begegnet, wenn man bei Bürstenhaltern eine auf einen Druckhebel einwirkende Feder vorsieht, der Kompensationsfedern zugeordnet sind. Es empfiehlt sich, die Druckfe-der als Wendelfeder auszubilden und die Kompensatiönsfedern innerhalb der Druckfeder anzuordnen. Die Kompensationsfedern sind ebenfalls wendelförmig ausgebildet. Es empfiehlt sich, die Federn quer zur Bürstenachse anzuordnen. Die Druckhebel können gelenkig ausgebildet sein und - mit ihrem Ende gemeinsam an eine auf die Bürste drückende Rolle angeschlossen sein.According to the present invention, the aforementioned disadvantage is met, if a spring acting on a pressure lever is provided for brush holders, the compensation springs are assigned. It is recommended to use the compression spring as Form spiral spring and arrange the Kompensatiönsfedern within the compression spring. The compensation springs are also helical. It is advisable, to arrange the springs transversely to the brush axis. The pressure levers can be designed to be articulated and - connected with their end together to a roller pressing on the brush be.

In der Zeichnung ist eine Seitenansicht teilweise im Schnitt dargestellt. -Auf die Bürste r drückt das Rädchen 2, das an dem freien Ende der Hebel 3 und 4 angeordnet. ist. Die anderen Enden der Hebel 3 und q. sind bei 5 und 6 an den Enden der Feder 7 --befestigt, die sich in Richtung -der Pfeile 8 zusammenzuziehen strebt. Entgegen oder Kraft dieser Feder wirkt die axial in ihr angeordnete Kompensationsfeder 9,. .die an der Platte ro; wie aus der Zeichnung ersichtlich ist, befestigt ist. Wird die Feder 7 in Richtung der Pfeile 8 zusammengezogen,, so drückt die Rolle 2 in Richtung des- Pfeiles i i. Der nachlassenden Kraft der Feder g wirkt dann die expandierende Kraft 12 der Kompensationsfeder 9 entgegen.In the drawing, a side view is shown partially in section. -The wheel 2, which is located at the free end of the levers 3 and 4, presses on the brush r. is. The other ends of levers 3 and q. Are fastened at 5 and 6 to the ends of the spring 7, which tends to contract in the direction of the arrows 8 . The compensation spring 9, arranged axially in it, acts against or against the force of this spring. .the one on the plate ro; as can be seen from the drawing, is attached. If the spring 7 is pulled together in the direction of the arrows 8, the roller 2 presses in the direction of the arrow i i. The decreasing force of the spring g is then counteracted by the expanding force 12 of the compensation spring 9.

Bei dem neuen Bürstenhalter bewegen sich also die Arme praktisch stets unter konstantem Druck in dem Rädchen aufeinander. Genau konstant ist der Druck dieser Apparatur nicht. Die Abweichungen sind jedoch so gering, daß sie praktisch nicht in Erscheinung treten.With the new brush holder, the arms are practically always moving under constant pressure in the wheel on each other. The pressure is exactly constant this apparatus does not. However, the deviations are so small that they are practical do not appear.

Claims (1)

PATENTANSPRÜCHE:PATENT CLAIMS:
DES3835D 1944-07-25 1944-07-25 Brush holders for electrical machines Expired DE866527C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES3835D DE866527C (en) 1944-07-25 1944-07-25 Brush holders for electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES3835D DE866527C (en) 1944-07-25 1944-07-25 Brush holders for electrical machines

Publications (1)

Publication Number Publication Date
DE866527C true DE866527C (en) 1953-02-09

Family

ID=7470379

Family Applications (1)

Application Number Title Priority Date Filing Date
DES3835D Expired DE866527C (en) 1944-07-25 1944-07-25 Brush holders for electrical machines

Country Status (1)

Country Link
DE (1) DE866527C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1009285B (en) * 1954-01-16 1957-05-29 Schunk & Ebe Gmbh Brush holder with spring-operated brush lever for electrical machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1009285B (en) * 1954-01-16 1957-05-29 Schunk & Ebe Gmbh Brush holder with spring-operated brush lever for electrical machines

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