EP0884810A2 - Balai en charbon pour machines électriques - Google Patents

Balai en charbon pour machines électriques Download PDF

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Publication number
EP0884810A2
EP0884810A2 EP98110488A EP98110488A EP0884810A2 EP 0884810 A2 EP0884810 A2 EP 0884810A2 EP 98110488 A EP98110488 A EP 98110488A EP 98110488 A EP98110488 A EP 98110488A EP 0884810 A2 EP0884810 A2 EP 0884810A2
Authority
EP
European Patent Office
Prior art keywords
carbon brush
leg
bending
bending leg
collector
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Withdrawn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
EP98110488A
Other languages
German (de)
English (en)
Other versions
EP0884810A3 (fr
Inventor
Bernd Walther
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.)
Valeo Wischersysteme GmbH
Original Assignee
ITT Manufacturing Enterprises LLC
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 ITT Manufacturing Enterprises LLC filed Critical ITT Manufacturing Enterprises LLC
Publication of EP0884810A2 publication Critical patent/EP0884810A2/fr
Publication of EP0884810A3 publication Critical patent/EP0884810A3/fr
Withdrawn legal-status Critical Current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
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/36—Connections of cable or wire to brush
    • 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

Definitions

  • the invention relates to a carbon brush for an electric Machine that springs a collector.
  • Carbon brushes for electrical machines are already large Number known with various embodiments. Basically are the carbon brushes in a guide, the so-called Quiver, in a direction radial to the collector arranged movably and act resiliently on it.
  • the a coil spring provides the necessary spring force, which are in alignment and in relation to the collector located behind the carbon brush.
  • the carbon brush on the quiver side on a wall for example a bent one Tab, supported.
  • For the power supply of the carbon brushes serve separate strands, which are separated with a Power supply must be electrically connected. The contacting of the flexible strands with the power supply is problematic because the stranded end is always more complex Be brought into the desired position got to. This procedure is inexpensive and therefore fully automatic assembly with low rejects suitable.
  • the object of the present invention is a carbon brush to create that are easy and inexpensive to assemble leaves and on the other hand the necessary security against misfires guaranteed in the power supply.
  • a carbon brush 1 is used to power the on a Rotor of an electrical machine arranged windings and resiliently acts on a collector 2.
  • Any carbon brush 1 is in a channel-like guide 3 made of guide elements 4,5 arranged movably in the radial direction to the collector 2.
  • the body 6 of each carbon brush 1 connected to a bending leg 7.
  • the bending leg 7 extends at right angles to a movement axis 8 of the Carbon brush 1, which is in the radial direction to the collector 2 extends.
  • the carbon brush side leg end 9 ces Bending leg 7 is arranged rigidly on the body 6 and, for example, positively engages in the body 6.
  • the leg end 9 with undercuts be provided.
  • the bending leg is generally 7 together with the carbon brush 1 in the guide 3 radially the collector 2 is movable and the other leg end 10 firmly supported relative to the carbon brush 1.
  • the leg end 10 is welded to a fixed arm 11.
  • a fixed system is sufficient for the function, so that when the carbon brush 1 is placed on the collector 2 the necessary spring force is available.
  • the arm 11 is part of the quiver formed by the guide elements 4,5 or a Can be part of a holding plate 12.
  • an electrical supply element 13 electrically connected to the leg end 10.
  • the bending leg 7 also serves the electrical Supply of the carbon brush 1, so that within the mechanical Attaching the leg end 10 to the arm 11 at the same time the electrical contact with the supply element 13 can be made. Of course it is to ensure that the electrical contact resistance between the bending leg and the body 6 is as small as possible.
  • the Carbon brush 1 and the bending leg 7 thus form a one-piece Unit, the bending leg 7 additionally electrically is conductive and to power the carbon brush 1 serves.
  • the attachment of the bending leg 7 to the arm 11 takes place in a force-free end position, which is indicated in Fig. 2 and the position of the worn carbon brush 1 in Fig. 3 is similar. Fundamentally known means of restraint the carbon brushes in the prestressed end position are not shown in the figures.
  • the bending leg 7 Starting from the initial position shown in Fig. 2, in which the bending leg 7 is deflected as much as possible and the body 6 has its unsworn initial length, the bending leg 7 approaches as wear progresses of the body 6 of the force-free drawn in Fig. 3 End position. In this non-energized end position the bending leg 7 is perpendicular to the axis of movement 8th.
  • the carbon brush 1 is produced as follows. First is a certain amount of graphite material for the Body 6 portioned and filled into a mold. In the The bending leg 7 is already in the form of an insert or in a second step it becomes the bending leg used in the form. Then the pressing takes place of the body under high pressure and possibly increased Temperature. This is followed by a heat treatment of the entire carbon brush 1, the sintering at about 450 ° C. Finally, the brush is made to measure and, if necessary, a Grinding radius attached.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
EP98110488A 1997-06-13 1998-06-08 Balai en charbon pour machines électriques Withdrawn EP0884810A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19725082 1997-06-13
DE19725082A DE19725082A1 (de) 1997-06-13 1997-06-13 Kohlebürste für eine elektrische Maschine

Publications (2)

Publication Number Publication Date
EP0884810A2 true EP0884810A2 (fr) 1998-12-16
EP0884810A3 EP0884810A3 (fr) 2000-01-12

Family

ID=7832428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110488A Withdrawn EP0884810A3 (fr) 1997-06-13 1998-06-08 Balai en charbon pour machines électriques

Country Status (3)

Country Link
US (1) US6011342A (fr)
EP (1) EP0884810A3 (fr)
DE (1) DE19725082A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10251368A1 (de) * 2002-11-05 2004-05-13 Valeo Motoren Und Aktuatoren Gmbh Bürstenhalteanordnung für eine Kohlebürste einer Elektromaschine, insbesondere eines Elektromotors, sowie Elektromaschine mit einer derartigen Bürstenhalteanordnung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3511513B2 (ja) * 2001-05-10 2004-03-29 三菱電機株式会社 ブラシ装置
US7696666B2 (en) * 2006-10-06 2010-04-13 Remy Technologies, L.L.C. Dynamoelectric machine grommet
US7466056B2 (en) * 2006-10-06 2008-12-16 Remi International, Inc Dynamoelectric machine brush holder assembly and method
US7705512B2 (en) * 2006-10-06 2010-04-27 Remy International, Inc. Dynamoelectric machine conductor
US20080084133A1 (en) * 2006-10-06 2008-04-10 Steven Burton Dynamoelectric machine brush and method
DE102018132050B3 (de) * 2018-12-13 2020-02-06 Schunk Carbon Technology Gmbh Bürstenmodul und Verfahren zur Montage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2094561A (en) * 1981-03-10 1982-09-15 Mabuchi Motor Co Electric motor brush gear
GB2187600A (en) * 1986-03-05 1987-09-09 Johnson Electric Ind Mfg Electric motor brush mountings
DE3722466A1 (de) * 1986-07-10 1988-01-28 Mabuchi Motor Co Elektrischer motor
EP0455253A2 (fr) * 1990-05-04 1991-11-06 Schunk Metall und Kunststoff GmbH Porte-balais

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1116492A (en) * 1914-01-31 1914-11-10 Amato N Sammarone Brush-holder.
US1293038A (en) * 1916-04-19 1919-02-04 Nat Carbon Co Inc Brush-holder.
US2906939A (en) * 1958-04-28 1959-09-29 Gen Motors Corp Regulating circuit for generators
ES291075Y (es) * 1985-12-17 1988-04-16 Braun Espanola,S.A. Dispositivo puente escobillas para utilizacion en motores electricos de colector
JPS6343550A (ja) * 1986-08-05 1988-02-24 Mabuchi Motor Co Ltd ブラシ装置
JPH0334657U (fr) * 1989-08-10 1991-04-04
ES2051024T3 (es) * 1989-08-31 1994-06-01 Siemens Ag Motor de anillos rozantes o motor de colector.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2094561A (en) * 1981-03-10 1982-09-15 Mabuchi Motor Co Electric motor brush gear
GB2187600A (en) * 1986-03-05 1987-09-09 Johnson Electric Ind Mfg Electric motor brush mountings
DE3722466A1 (de) * 1986-07-10 1988-01-28 Mabuchi Motor Co Elektrischer motor
EP0455253A2 (fr) * 1990-05-04 1991-11-06 Schunk Metall und Kunststoff GmbH Porte-balais

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10251368A1 (de) * 2002-11-05 2004-05-13 Valeo Motoren Und Aktuatoren Gmbh Bürstenhalteanordnung für eine Kohlebürste einer Elektromaschine, insbesondere eines Elektromotors, sowie Elektromaschine mit einer derartigen Bürstenhalteanordnung

Also Published As

Publication number Publication date
US6011342A (en) 2000-01-04
DE19725082A1 (de) 1999-01-07
EP0884810A3 (fr) 2000-01-12

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