EP0486330A1 - Verbesserter Bürstenhalter für Kollektormotoren - Google Patents

Verbesserter Bürstenhalter für Kollektormotoren Download PDF

Info

Publication number
EP0486330A1
EP0486330A1 EP91402468A EP91402468A EP0486330A1 EP 0486330 A1 EP0486330 A1 EP 0486330A1 EP 91402468 A EP91402468 A EP 91402468A EP 91402468 A EP91402468 A EP 91402468A EP 0486330 A1 EP0486330 A1 EP 0486330A1
Authority
EP
European Patent Office
Prior art keywords
brush holder
shells
brush
plate
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.)
Granted
Application number
EP91402468A
Other languages
English (en)
French (fr)
Other versions
EP0486330B1 (de
Inventor
Alain Tourret
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.)
ECIA Equipements et Composants pour lIndustrie Automobile SA
Original Assignee
ECIA Equipements et Composants pour lIndustrie Automobile SA
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 ECIA Equipements et Composants pour lIndustrie Automobile SA filed Critical ECIA Equipements et Composants pour lIndustrie Automobile SA
Publication of EP0486330A1 publication Critical patent/EP0486330A1/de
Application granted granted Critical
Publication of EP0486330B1 publication Critical patent/EP0486330B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01R39/40—Brush holders enabling brush movement within holder during current collection

Definitions

  • the present invention relates to direct current electric motors, the switching of which is ensured by a collector and brushes elastically urged against it, and more particularly relates to a brush holder intended to be mounted on a plate associated with the stator. such an electric motor.
  • DC electric motors are used, the switching of which is ensured by a collector and brushes elastically biased against the latter. This is for example the case in the automotive industry where such motors are commonly in use for driving windshield wipers, maneuvering window regulators or driving motorized fans.
  • the collector is usually placed at the end of the shaft so that the plate with which the brush holders are associated most often only increases the overall length of the stator of such a motor.
  • a brush holder is for example exposed in the document FR 1 522 538.
  • the solution proposed is far from satisfactory.
  • the object of the invention is to remedy most of the drawbacks briefly recalled above using a brush holder for a DC electric motor plate, the switching of which is ensured by a collector and brushes elastically urged against it.
  • collector which is designed to be mounted on the plate and to receive a brush in order to minimize the risks of jamming of the brush in the brush holder during the operation of the motor, to allow a good ventilation and also to reduce the axial dimensions of an engine.
  • the subject of the invention is a brush holder for a DC electric motor plate, the switching of which is ensured by a collector and brushes elastically urged against this collector.
  • This brush holder which is intended to be mounted on the plate and to receive a brush is remarkable in that it comprises a hollow chimney with polygonal cross section with two projecting lateral wings, which is made up of two U-shaped half-shells composed , each of two opposite branches which are connected by a bridge and which each have a rim practically parallel to this bridge and directed in the opposite direction.
  • This brush holder is also remarkable in that the distance between two opposite branches of one of the half-shells, measured near the corresponding bridge, is greater than this same distance from the other of the half-shells, these half-shells shells being joined by their edges so as to constitute this chimney and so that at least two of these edges constitute the wings and form in part a device for mounting the brush holder on the plate.
  • a direct current electric motor usually comprises a stator consisting of a central carcass and end flanges with bearings. It also includes a rotor with a shaft carried by these bearings and on which a collector is mounted. All this is classic and for this not shown, nor described more fully.
  • Such a motor usually comprises a brush holder plate 10 connected to the stator by appropriate fixing means and often close to one of the end flanges.
  • a plate is practically plumb or in the immediate vicinity of the collector.
  • the plate 10 is conventionally in the form of a plate 100 pierced with an aperture 101 for the passage of the shaft and / or the manifold, as well as at least one recess 102 intended to receive a brush holder 11 which is mounted therein using a mounting device 103.
  • the plate 10 is also intended to further receive brushes 12, or coals, which are usually in the form of sticks 120 of circular or polygonal cross section which are able to move freely in the brush holders 11 which receive them.
  • An elastic biasing member 13 acts on each brush 12 in order to make it slide in the brush holder in the radial direction and in the centripetal direction so as to apply it closely against the collector.
  • a suitable electrical connection connects this brush or carbon to the rest of the electrical circuit of the motor, as is well known.
  • a brush holder 11 according to the invention is in the manner of a hollow chimney 110 with two projecting lateral wings 1100, as illustrated.
  • This chimney as it appears in Figures 2, 3A and 3B, has a polygonal cross section and preferably quadrangular or hexagonal.
  • the chimney 110 is made up of two half-shells 111 and 112 in a U shape.
  • each of the two half-shells 111 and 112 is made up of two opposite branches 1111 and 1121, respectively, which are connected by a bridge 1112 and 1122 respectively.
  • Each of the branches is also provided with a flange 1113 and 1123, respectively, which is practically parallel to the corresponding bridge and directed in the opposite direction.
  • the distance between two opposite branches of one of the half-shells, measured near the corresponding bridge, is greater than this same distance from the other of the half-shells.
  • these half-shells are joined by their edges so as to constitute this chimney and so that at least two of these edges constitute the wings and form in part the mounting device 103 of the door -broom on the stage, as will be understood later.
  • the technique used to join the two half-shells by their edges is common.
  • the cross section of the chimney is then quadrangular.
  • the cross section of the chimney is then for example hexagonal.
  • the recess 102 is delimited by two opposite sections 1020 in each of which a groove 1030 is hollowed out.
  • This groove constitutes a part of the mounting device 103.
  • the other part of this mounting device 103 is constituted by the margin 1114, 1124 d a flange 1113, 1123 which serves as a tongue and which is intended to be engaged in the groove 1030.
  • one of the branches 1111 has a slot 113 oriented practically parallel to the bridge 1112, and intended for the passage of a member for the elastic stress of a brush, member which is, for example, in the form of a hairpin spring.
  • the elastic biasing member is in the form of a coil spring which is inserted in the chimney 110 so that one of its ends bears on the chimney opposite the collector and that the other of its ends rests on the broom.
  • a stick-shaped broom 120 is used, for example with an approximately square cross section which is provided with at least one axial peripheral promontory 1201 with edges 1202.
  • one at less of the bridges 1112 is arranged so as to present a clearance 114 with sides 1141 practically parallel to a corresponding branch 1141 and intended for the passage of this promontory.
  • the sides 1141 of the clearance cooperate with the edges 1202 of the headland of the brush to guide it.
  • the width of the openings is different so that only the flanks of one of them guide and effectively direct the corresponding edges 1202 of a promotion.
  • the size of the recesses and their judicious arrangement allow the brush holders to be left free, practically on all sides, and to give them a large accessible surface. In this way, the brush holders can be easily ventilated and dissipate calories by radiation in particular.
  • a brush holder is used, at least one of the two shells of which is metallic, for example made of brass board or the like which is made up by conventional cutting, stamping and bending, folding operations.
  • the plate is made of a synthetic resin obtained for example by molding.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Motor Or Generator Frames (AREA)
EP19910402468 1990-11-13 1991-09-17 Verbesserter Bürstenhalter für Kollektormotoren Expired - Lifetime EP0486330B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9014075 1990-11-13
FR9014075A FR2669160B1 (fr) 1990-11-13 1990-11-13 Porte-balai perfectionne pour moteur electrique a collecteur.

Publications (2)

Publication Number Publication Date
EP0486330A1 true EP0486330A1 (de) 1992-05-20
EP0486330B1 EP0486330B1 (de) 1995-06-14

Family

ID=9402127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910402468 Expired - Lifetime EP0486330B1 (de) 1990-11-13 1991-09-17 Verbesserter Bürstenhalter für Kollektormotoren

Country Status (4)

Country Link
EP (1) EP0486330B1 (de)
DE (1) DE69110408T2 (de)
ES (1) ES2073702T3 (de)
FR (1) FR2669160B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911016A1 (fr) * 2006-11-30 2008-07-04 Valeo Equip Electr Moteur Ensemble cage de guidage et balai pour un porte-balais et machine electrique comportant un porte-balais avec un tel ensemble.

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6133665A (en) * 1998-08-14 2000-10-17 S-B Power Tool Company Brush system for electric motors
DE102008041717A1 (de) * 2008-08-29 2010-03-04 Robert Bosch Gmbh Handwerkzeugmaschine mit Bürstenmotor
DE102014225520A1 (de) * 2014-12-11 2016-06-30 Robert Bosch Gmbh Kommutierungseinrichtung für eine elektrische Maschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582872A1 (fr) * 1985-05-30 1986-12-05 Peugeot Aciers Et Outillage Plaque porte-balais perfectionnee pour moteur electrique et son procede de fabrication
FR2631176A1 (fr) * 1988-05-04 1989-11-10 Valeo Dispositif porte-balais pour machine tournante electrique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582872A1 (fr) * 1985-05-30 1986-12-05 Peugeot Aciers Et Outillage Plaque porte-balais perfectionnee pour moteur electrique et son procede de fabrication
FR2631176A1 (fr) * 1988-05-04 1989-11-10 Valeo Dispositif porte-balais pour machine tournante electrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911016A1 (fr) * 2006-11-30 2008-07-04 Valeo Equip Electr Moteur Ensemble cage de guidage et balai pour un porte-balais et machine electrique comportant un porte-balais avec un tel ensemble.

Also Published As

Publication number Publication date
FR2669160B1 (fr) 1993-02-19
DE69110408D1 (de) 1995-07-20
FR2669160A1 (fr) 1992-05-15
EP0486330B1 (de) 1995-06-14
ES2073702T3 (es) 1995-08-16
DE69110408T2 (de) 1995-11-02

Similar Documents

Publication Publication Date Title
EP0991162B1 (de) Wechselstromgenerator für Kraftfahrzeuge mit Vorrichtung zur Spielbeseitigung von Zwischenpol-Magneten
EP1277030B1 (de) Magnetfluss-konzentrierender verbinder für elektrische motoren
EP0743738B1 (de) Gleichstromgenerator, insbesondere für Kraftfahrzeug, der eine verbesserte Anordnung für Gleichrichtungsdioden enthält
EP2830179A2 (de) Elektrisch umlaufende Maschine, entsprechende Halterung für Temperatursonde und entsprechende Temperaturmesseinheit
FR3121988A1 (fr) Dispositif de mesure de température destiné à mesurer la température d’une broche d’un connecteur électrique
EP0282377B1 (de) Elektrische Motorgetriebeeinheit und Verfahren zu deren Montage
EP0486330B1 (de) Verbesserter Bürstenhalter für Kollektormotoren
FR2675322A1 (fr) Micromoteur electromagnetique a flux axial.
FR3037381A1 (fr) Dispositif de positionnement d'un support lumineux d'une diode electroluminescente sur un element support et module lumineux pour dispositif d'eclairage et/ou de signalisation comportant un tel dispositif
EP0898807B1 (de) Kollektorgehäuse-und motorgetriebeanschlusseinheit
WO2015150672A2 (fr) Platine support de porte-balais pour moteur electrique et porte-balai correspondant
FR2902872A1 (fr) Dispositif de mesure de champ magnetique.
FR3056844A1 (fr) Moteur electrique a courant continu sans balais pour systeme d'essuyage de vehicule automobile
WO2024121480A1 (fr) Guide de connecteurs pour onduleur comportant un organe de plaquage
EP1331126B1 (de) Hybridantriebssystem eines Kraftfahrzeugs mit elastischer Kupplungsvorrichtung zwischen dem Rotor der reversiblen elektrischen Maschine und der Antriebswelle des Schaltgetriebes des Kraftfahrzeugs
EP0771414B1 (de) Vorrichtung zum messen des drehmoments
EP0743740B1 (de) Wechselstromgenerator, insbesondere für Kraftwagen, mit einer Gleichrichterdiodenanordnung
EP3474025A1 (de) Messfühler zum messen des ausgangsstroms eines elektrischen systems
FR2585409A1 (fr) Dispositif d'actionnement electrique d'un organe, notamment d'un volet de papillon de carburateur
FR2950011A1 (fr) Dispositif d'entrainement d'essuie-glace equipe d'une installation de determination de position
FR2513036A1 (fr) Generatrice a courant triphase sans collecteur a friction
FR3142625A1 (fr) Dispositif de mise à une masse d’un rotor, machine électrique et véhicule automobile associé
EP1901397A2 (de) Elektrische Verbindungseinrichtung
EP0223678A1 (de) Elektronisch kommutierter Gleichstrommotor
FR3039938A1 (fr) Ensemble pour machine electrique tournante comportant un collecteur fixe au moyen d'une goupille

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19920320

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB IT SE

17Q First examination report despatched

Effective date: 19940415

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT SE

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 69110408

Country of ref document: DE

Date of ref document: 19950720

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2073702

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950921

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960821

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960910

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19960917

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19960920

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970918

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19970918

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980603

EUG Se: european patent has lapsed

Ref document number: 91402468.2

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050917