EP0482235B1 - Slipring or commutator motor - Google Patents

Slipring or commutator motor Download PDF

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Publication number
EP0482235B1
EP0482235B1 EP19900120383 EP90120383A EP0482235B1 EP 0482235 B1 EP0482235 B1 EP 0482235B1 EP 19900120383 EP19900120383 EP 19900120383 EP 90120383 A EP90120383 A EP 90120383A EP 0482235 B1 EP0482235 B1 EP 0482235B1
Authority
EP
European Patent Office
Prior art keywords
brush
slipring
motor
commutator
commutator motor
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 - Lifetime
Application number
EP19900120383
Other languages
German (de)
French (fr)
Other versions
EP0482235A1 (en
Inventor
Helmut Schmidt
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 DE90120383T priority Critical patent/DE59004361D1/en
Priority to ES90120383T priority patent/ES2048388T3/en
Priority to EP19900120383 priority patent/EP0482235B1/en
Publication of EP0482235A1 publication Critical patent/EP0482235A1/en
Application granted granted Critical
Publication of EP0482235B1 publication Critical patent/EP0482235B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R39/38—Brush holders

Definitions

  • the invention relates to a slip ring or commutator motor according to the preamble of claim 1; such a motor is known from DE-A-923 803.
  • the carbon brush is pivotally mounted to the commutator axis via a ball joint or a spring in a brush arm.
  • a brush holder in contrast, which is much simpler in terms of production and assembly technology and nevertheless fully ensures compensation for radial run-out, is possible according to the invention in a slip ring or commutator motor of the type mentioned at the outset by the teaching of claim 1;
  • the brush can be pivoted with little effort and is easy to assemble with simultaneous readjustment of the brush due to operational abrasion on the surface of the slip ring or the commutator motor.
  • the brush arms are expediently one-piece parts of a brush guide plate, which radially otherwise extends at a spacing apart and which rests on its free arm ends with its narrow side in the region of the guide slots on the brush in the manner of an articulation point.
  • the brush guide plate can be attached to mounting pins in a further simplification in terms of assembly technology, in particular it can be buttoned, which is advantageous Are provided in one piece on a plastic bearing plate of the slip ring or commutator motor used to hold the brush.
  • FIG. 1-3 show, in three different views, a brush holder according to the invention with a brush 1 which grinds on the surface of a commutator 5, is pressed on by a brush pressure spring 3 and is pivotally suspended to compensate for concentricity deviations of the commutator 1 parallel to its axis.
  • an essentially U-shaped brush guide plate 2 is provided which, with its inner leg ends in the form of brush arms 21 or 22, has radial guide slots 11 or 12, which are open towards the tangential end faces of the brush 1 an axially and / or tangentially guided swiveling action and engage the brush 1.
  • the brush guide plate 2 is buttoned at free ends of mounting pins 41 and 42, respectively, which are held on a bearing plate 4 receiving the brush holder, preferably injection-molded in one piece.
  • the brush pressure spring 3 serving for the brush pressure is bent from a one-piece wire, which has one free end in an axial groove on the surface of the brush 1 and is held with its other free end with the advantageous interposition of a damping insert 43 in the end shield 4.

Description

Die Erfindung bezieht sich auf einen Schleifring- bzw. Kommutatormotor gemäß Oberbegriff des Anspruchs 1; ein derartiger Motor ist aus der DE-A-923 803 bekannt.The invention relates to a slip ring or commutator motor according to the preamble of claim 1; such a motor is known from DE-A-923 803.

Im bekannten vorgenannten Fall ist zur besseren Anpaßbarkeit der Kohlebürste an Unrundheiten der Schleiffläche des Schleifringes bzw. des Kommutators vorgesehen, die Kohlebürste über ein Kugel- Gelenk oder eine Feder in einem Bürstenarm schwenkbar zur Kommutatorachse zu lagern.In the known case mentioned, for better adaptability of the carbon brush to non-roundness of the grinding surface of the slip ring or of the commutator, the carbon brush is pivotally mounted to the commutator axis via a ball joint or a spring in a brush arm.

Eine demgegenüber fertigungs- und montagetechnisch wesentlich einfachere und trotzdem einen Ausgleich von Rundlaufabweichung voll gewährleistende Bürstenhalterung ist bei einem Schleifring- bzw. Kommutatormotor der eingangs genannten Art erfindungsgemäß durch die Lehre des Anspruchs 1 möglich; bei der erfindungsgemäßen Konstruktion kann eine mit geringem Aufwand fertigbare und einfach montierbare Schwenkbarkeit der Bürste bei gleichzeitiger Nachstellung der Bürste aufgrund eines betriebsmäßigen Abriebes an der Oberfläche des Schleifringes bzw. des Kommutatormotors erreicht werden.A brush holder, in contrast, which is much simpler in terms of production and assembly technology and nevertheless fully ensures compensation for radial run-out, is possible according to the invention in a slip ring or commutator motor of the type mentioned at the outset by the teaching of claim 1; With the construction according to the invention, the brush can be pivoted with little effort and is easy to assemble with simultaneous readjustment of the brush due to operational abrasion on the surface of the slip ring or the commutator motor.

Zweckmäßigerweise sind die Bürstenarme einstückige Teile einer die Bürste radial ansonsten in Abstand übergreifenden Bürstenführungsplatte, die an ihren freien Armenden mit ihrer Schmalseite im Bereich der Führungsschlitze an der Bürste gelenkpunktartig anliegt. Die Bürstenführungsplatte kann in weiterer montagetechnischer Vereinfachung an Halterungsstiften befestigt, insbesondere eingeknöpft, werden, die in vorteilhafter Weise einstückig an ein zur Halterung der Bürste mitverwendetes Kunststoff-Lagerschild des Schleifring- bzw. Kommutatormotors vorgesehen sind.The brush arms are expediently one-piece parts of a brush guide plate, which radially otherwise extends at a spacing apart and which rests on its free arm ends with its narrow side in the region of the guide slots on the brush in the manner of an articulation point. The brush guide plate can be attached to mounting pins in a further simplification in terms of assembly technology, in particular it can be buttoned, which is advantageous Are provided in one piece on a plastic bearing plate of the slip ring or commutator motor used to hold the brush.

Die Erfindung sowie weitere vorteilhafte Ausgestaltungen der Erfindung gemäß Merkmalen der Unteransprüche werden im folgenden anhand eines schematisch dargestellten Ausführungsbeispiels in der Zeichnung naher erläutert; darin zeigen

FIG 1-3
die axiale, stirnseitige und radiale Ansicht einer erfindungsgemäßen Bürstenhalterung.
The invention and further advantageous embodiments of the invention according to the features of the subclaims are explained in more detail below with reference to a schematically illustrated embodiment in the drawing; show in it
FIG 1-3
the axial, front and radial view of a brush holder according to the invention.

FIG 1-3 zeigen in drei verschiedenen Ansichten eine erfindungsgemäße Bürstenhalterung mit einer auf der Oberfläche eines Kommutators 5 schleifenden, über eine Bürstenandruckfeder 3 angedrückten und zum Ausgleich von Rundlaufabweichungen des Kommutators 1 parallel zu dessen Achse schwenkbar aufgehängten Bürste 1.1-3 show, in three different views, a brush holder according to the invention with a brush 1 which grinds on the surface of a commutator 5, is pressed on by a brush pressure spring 3 and is pivotally suspended to compensate for concentricity deviations of the commutator 1 parallel to its axis.

Zur schwenkbaren Lagerung der Bürste 1 ist eine im wesentlichen U-förmige Bürstenführungsplatte 2 vorgesehen, die mit ihren inneren Schenkelenden in Form von Bürstenarmen 21 bzw.22 in radiale, nach außen zur den tangentialen Stirnseiten der Bürste 1 offene Führungsschlitze 11 bzw.12 im Sinne einer axial und/oder tangential geführten Schwenkbarkeit eingreifen und an der Bürste 1 anliegen.For the pivotable mounting of the brush 1, an essentially U-shaped brush guide plate 2 is provided which, with its inner leg ends in the form of brush arms 21 or 22, has radial guide slots 11 or 12, which are open towards the tangential end faces of the brush 1 an axially and / or tangentially guided swiveling action and engage the brush 1.

Nach einer Ausgestaltung der Erfindung ist die Bürstenführungsplatte 2 an freien Enden von Halterungsstiften 41 bzw.42 eingeknöpft, die an einem die Bürstenhalterung aufnehmenden Lagerschild 4, vorzugsweise einstückig angespritzt, gehalten sind.According to one embodiment of the invention, the brush guide plate 2 is buttoned at free ends of mounting pins 41 and 42, respectively, which are held on a bearing plate 4 receiving the brush holder, preferably injection-molded in one piece.

Die dem Bürstenandruck dienende Bürstenandruckfeder 3 ist aus einem einstückigen Draht gebogen, der mit einem einen freien Ende in einer axialen Nut an der Oberfläche der Bürste 1 liegt und mit seinem anderen freien Ende unter vorteilhafter Zwischenlage einer Dämpfungseinlage 43 im Lagerschild 4 gehalten ist.The brush pressure spring 3 serving for the brush pressure is bent from a one-piece wire, which has one free end in an axial groove on the surface of the brush 1 and is held with its other free end with the advantageous interposition of a damping insert 43 in the end shield 4.

Claims (8)

  1. Slipring motor or commutator motor having a brush (1) which is pressed by means of a brush-pressure spring (3) against the surface of a slipring or a commutator (5) and which can be swivelled parallel to the axis of the slipring or the commutator (5) about at least one brush arm point of articulation, characterised in that the brush (1) is swivel-mounted between brush arms (21;22) resting against its tangential faces and on at least one tangential face is provided with a guide slot (11) which extends in the direction of applied pressure and inside which a brush arm (21) rests against the brush (1) so that the brush has an axially and/or tangentially directed swivel feature.
  2. Slipring motor or commutator motor, in particular for operation in both directions of rotation, according to claim 1, characterised by a respective guide slot (11 and 12), with brush arm (21 and 22) engaging and resting thereon in each case, on each of the two tangential faces of the brush (1).
  3. Slipring motor or commutator motor according to claim 1 or 2, characterised in that the brush arms (21; 22) are parts of a one-piece brush-guiding plate (2) overlapping the brush radially and otherwise with clearance, which parts at their free arm ends with their narrow side in the region of the guide slots (11;12) rest against the brush (1) in the manner of a hinge point.
  4. Slipring motor or commutator motor according to one of the claims 1-3, characterised by a plastics brush-guiding plate.
  5. Slipring motor or commutator motor according to claim 3 or 4, characterised by holding support means (41;42) on the side of the end shield or brush holding support for the securement of the brush-guiding plate (2).
  6. Slipring motor or commutator motor according to claim 5, characterised in that holding support pins (41;42) are provided as holding support means.
  7. Slipring motor or commutator motor according to claim 6, characterised in that the brush-guiding plate (2) can be clipped onto the holding support pins (41; 42).
  8. Slipring motor or commutator motor according to claim 7, characterised in that the holding support pins (41; 42) are one-piece components of a plastics end shield (4) of the slipring motor or commutator motor.
EP19900120383 1990-10-24 1990-10-24 Slipring or commutator motor Expired - Lifetime EP0482235B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE90120383T DE59004361D1 (en) 1990-10-24 1990-10-24 Slip ring or commutator motor.
ES90120383T ES2048388T3 (en) 1990-10-24 1990-10-24 COLLECTOR RING MOTOR OR COLLECTOR MOTOR.
EP19900120383 EP0482235B1 (en) 1990-10-24 1990-10-24 Slipring or commutator motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19900120383 EP0482235B1 (en) 1990-10-24 1990-10-24 Slipring or commutator motor

Publications (2)

Publication Number Publication Date
EP0482235A1 EP0482235A1 (en) 1992-04-29
EP0482235B1 true EP0482235B1 (en) 1994-01-19

Family

ID=8204647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900120383 Expired - Lifetime EP0482235B1 (en) 1990-10-24 1990-10-24 Slipring or commutator motor

Country Status (3)

Country Link
EP (1) EP0482235B1 (en)
DE (1) DE59004361D1 (en)
ES (1) ES2048388T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9415851U1 (en) 1994-09-30 1995-08-03 Siemens Ag Slip ring or commutator motor
DE19523896B4 (en) * 1995-06-30 2007-01-11 Robert Bosch Gmbh Mechanically commutated electric motor
DE19523899B4 (en) * 1995-06-30 2007-01-11 Robert Bosch Gmbh Mechanically commutated electric motor
DE10148705A1 (en) * 2001-10-02 2003-04-10 Valeo Auto Electric Gmbh Brush holder system for electrical drive, has brush holder plate with guide arrangement for guiding brushes or brush sections of flat springs with brushes in radial direction
GB0409662D0 (en) 2004-04-30 2004-06-02 Johnson Electric Sa Brush assembly
DE102005012807A1 (en) * 2005-03-17 2006-09-28 Deutsche Bp Ag Fuel for operating diesel engines
FR2885742B1 (en) * 2005-05-12 2007-12-28 Carbone Lorraine Applications Electriques BRUSH DEVICE FOR ROTATING ELECTRIC MACHINE WITH COLLECTOR

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE548073C (en) * 1928-11-15 1932-04-09 Siemens Schuckertwerke Akt Ges Brush holders for electrical machines
DE698701C (en) * 1939-01-18 1941-01-27 Ringsdorff Werke Komm Ges Brush holder for electrical machines
DE923803C (en) * 1952-10-15 1955-02-21 Ringsdorff Werke Gmbh Brush holder with brush
FR2530877A1 (en) * 1982-07-22 1984-01-27 Marchal Equip Auto BRUSH HOLDER AND ELECTRIC MOTOR PROVIDED WITH SUCH A BRUSH HOLDER

Also Published As

Publication number Publication date
ES2048388T3 (en) 1994-03-16
DE59004361D1 (en) 1994-03-03
EP0482235A1 (en) 1992-04-29

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