EP2313951B1 - Bürsteneinrichtung für einen kraftfahrzeuganlasser - Google Patents

Bürsteneinrichtung für einen kraftfahrzeuganlasser Download PDF

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Publication number
EP2313951B1
EP2313951B1 EP09784488.0A EP09784488A EP2313951B1 EP 2313951 B1 EP2313951 B1 EP 2313951B1 EP 09784488 A EP09784488 A EP 09784488A EP 2313951 B1 EP2313951 B1 EP 2313951B1
Authority
EP
European Patent Office
Prior art keywords
brush
holder assembly
support
cages
brushes
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.)
Active
Application number
EP09784488.0A
Other languages
English (en)
French (fr)
Other versions
EP2313951A2 (de
EP2313951C0 (de
Inventor
Stéphane PLAIDEAU
Maximilien Gentil
Wilfried Pays
Jean-Sébastien Metral
Wei Dan
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 Equipements Electriques Moteur SAS
Original Assignee
Valeo Equipements Electriques Moteur SAS
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
Priority claimed from FR0855060A external-priority patent/FR2934436B1/fr
Priority claimed from FR0855053A external-priority patent/FR2934435B1/fr
Application filed by Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP2313951A2 publication Critical patent/EP2313951A2/de
Application granted granted Critical
Publication of EP2313951B1 publication Critical patent/EP2313951B1/de
Publication of EP2313951C0 publication Critical patent/EP2313951C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R39/385—Means for mechanical fixation of the brush holder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the invention relates in particular to a brushed device for a rotating electrical machine, in particular a starter or an alternator of a motor vehicle.
  • the patent KR 430 503 also describes a brushed device for a rotating electric machine.
  • US4114061A discloses a motor vehicle starter according to the preamble of claim 1.
  • the wear of the brushes is linked to the phenomenon of electro-erosion and the speed of the electro-erosion is a function of the intensity of the electric current passing through the brush. It is possible to reduce this electric current by increasing the number of brushes aligned in contact with the rotor collector, which extends the life of the brushes.
  • the invention aims to propose a new brush device.
  • the subject of the invention is therefore a motor vehicle starter according to claim 1.
  • the two brushes of the brush holder assembly are arranged substantially aligned on a straight line parallel to an axis of rotation of the collector.
  • the brush holder assembly is made from a single part.
  • the brush holder assembly is produced by molding or, alternatively, preferably by cutting and folding a sheet metal.
  • the brush holder assembly is made from at least two assembled parts, for example by welding or gluing, each part forming in particular one of the cages of the brush holder assembly.
  • the brush holder assembly is arranged to be mounted on the support by snap-fastening or crimping.
  • the brush holder assembly can be arranged so that, after mounting on the support, the two cages are arranged substantially on either side of the support.
  • the two cages of the brush holder assembly are connected together by a hinge.
  • the two cages of the brush holder assembly form a common housing to receive the two brushes and, after mounting the brush holder assembly on the support, the two brushes of this brush holder assembly are separated from each other by the support.
  • the brushes are arranged in contact with each other and substantially aligned on a straight line parallel to an axis of rotation of the collector.
  • the brushes arranged in a contiguous manner can have a reduced size, which can make it possible to have a relatively compact machine.
  • the brush holder assembly is for example made from a single piece.
  • the brush holder assembly is made from two assembled parts, for example by welding or gluing, each part forming in particular one of the cages of the brush holder assembly.
  • the support comprises an electrically conductive layer interposed between two electrically insulating layers.
  • each cage receives a spring on which the brush placed in this cage applies.
  • This starter 1 comprises, on the one hand, a rotor 2, also called an armature, which can rotate around an axis X, and on the other hand, a stator 3, also called an inductor, around the rotor 2.
  • This stator 3 comprises a yoke on which one or more pole pieces 4 are fixed for the installation of an inductor winding 5.
  • the rotor 2 comprises a rotor body 7, and an armature winding 8 wound in notches of the rotor body 7.
  • This armature winding 8 forms, on either side of the rotor body 7, a front bun 9 and a rear bun 10.
  • the rotor 2 is provided, at the rear, with a collector 12 comprising a plurality of contact parts electrically connected to the conductive elements, formed in the example considered by wires of the armature winding 8.
  • a group of brushes 13 of a brush device 50 is provided for the electrical supply of the armature winding 8, at least one of the brushes 13 being connected to the ground of the starter 1 and at least another of the brushes 13 being connected to a contactor 17.
  • the brushes 13 rub on the collector 12 when the rotor 2 is rotating.
  • the brushes 13 are made for example from carbon.
  • the brush device 50 will be described in more detail below.
  • the starter 1 further comprises a launcher 19 slidably mounted on a drive shaft 18 and capable of being rotated around the axis X by the rotor 2.
  • a speed reducer assembly 20 can be interposed between the rotor 2 and the drive shaft 18, in a manner known per se.
  • the launcher 19 comprises a drive element formed by a pinion 21 and intended to engage on a drive member 33 of the combustion engine.
  • This drive member is for example a toothed crown.
  • the launcher 19 further comprises a free wheel 22 and a pulley washer 23 defining between them a groove 24 to receive the end 25 of a fork 27.
  • This fork 27 is made for example by molding a plastic material.
  • the fork 27 is actuated by the contactor 17 to move the launcher 19 relative to the drive shaft 18, along the axis pinion 21, and a second position in which the launcher 19 is disengaged from the toothed ring 33.
  • the contactor 17 comprises a terminal 29 connected via an electrical connection element, in particular a wire 30, to a vehicle power supply such as a battery 26.
  • the device 50 comprises a support 51 provided with an electrically conductive plate 52, for example made of steel, and having an annular shape perpendicular to the axis X.
  • the plate 52 comprises, on one side 53, two diametrically opposed recesses 54.
  • Each recess 54 receives an insulating insert 55, made for example of thermoset plastic material.
  • This insert 55 includes two holes 57 allowing it to be fixed on the plate 52 using rivets.
  • the thickness of the insert 55 is substantially equal to the depth of the recess 54.
  • the insert 55 is used to mount a brush holder assembly 60 on the support 51.
  • This brush holder assembly 60 comprises two cages 61 and 62 each arranged to receive a brush 13.
  • the brush device 50 comprises four brush holder assemblies 60 each carrying a pair of brushes 13.
  • Two of the assemblies 60 are mounted on the support 51 using insulating inserts 55, the brushes 13 of these assemblies then being connected to a power supply.
  • the two other assemblies 60 are fixed directly to the conductive plate 52, the brushes of these assemblies 60 then being, in this example, grounded.
  • each brush holder assembly 60 is made in one piece, in particular by cutting and folding a steel sheet.
  • cages 61 and 62 are integral with each other, which makes it easier to mount the assembly 60 either on the insulating insert 55 or on the plate 52.
  • the two cages 61 and 62 are connected together by a front hinge 65.
  • the cages 61 and 62 are slightly pushed away from each other by the action of the hinge 62.
  • the hinge 62 is arranged to engage on a radially inner edge 58 of the support 51.
  • Each cage 61; 62 comprises a substantially cylindrical wall 67 with a radial axis Y perpendicular to the axis X and having a substantially rectangular section.
  • the section of the wall 67 is chosen to substantially match the shape of the corresponding brush 13.
  • the wall 67 is split on one side and has a bulge 69 on an opposite side for the passage of a spring.
  • the cages 61 and 62 are open at both radial ends.
  • Each brush holder assembly 60 comprises on a side opposite the hinge 65 two crimping lugs 70, each connecting to a cage 61; 62 (see in particular figure 5 ).
  • the tabs 70 are folded onto an outer edge 59 of the insert 55 (see figures 3 and 4 notably).
  • the brush holder assembly 60 is thus fixed on the insert 55.
  • This assembly obtained is then placed and fixed on the plate 52, in a recess 54, by riveting.
  • the recess 54 of the plate 52 is provided with a recess 72 to allow the cage 62 to pass (see in particular figure 2 ).
  • Another of the brush holder assemblies 60 is fixed directly on the plate 52 in a manner substantially similar to the case of fixing on the insert 55.
  • the plate 52 includes a slot 73 for the passage of the crimping lugs 70 (see figures 2 and 3 notably).
  • the brush holder assemblies 60 can be easily fixed on the support 51.
  • the cages 61 and 62 define separate compartments for the brushes.
  • the brush device 50 may include a brush holder assembly 80 which initially has a common housing 81 for the two brushes 13 to be put in place.
  • This comprises a conductive layer 87 interposed between two exterior insulating layers 86.
  • the brush holder assembly 80 includes, on one side, two lugs 88 to be riveted onto the support 85.
  • the assembly 80 also includes slots 89, on each side, allowing this assembly 80 to be inserted by sliding, in the plane of the support 85, onto this support 85.
  • the assembly 80 further comprises, at the rear, latching elements 90 such as two elastically deformable tabs, capable of being applied to a rear edge 91 of the support 85 to prevent the removal of this assembly 80.
  • latching elements 90 such as two elastically deformable tabs
  • the assembly 80 is made in one piece.
  • the brush holder assembly comprises two latching tabs 90.
  • the brush holder assembly may comprise a single latch tab 90, as illustrated in the Figure 9 .
  • the cages 61 and 62 of the brush holder assembly are arranged on either side of the support 51 or 85.
  • Each brush holder 102 has two cages 104 and 105 for brushes 13.
  • These cages 104 and 105 are arranged on the same side of the support 101.
  • These assemblies 102 do not have a front hinge.
  • Each brush holder assembly 102 comprises a wall 107 having a substantially S-shaped profile when observed in a radial direction, so as to define the two cages 104 and 105.
  • Each cage 104; 105 is closed at the rear by a shutter 110 fixed on the cage 104; 105 corresponding by cooperation of fixing elements 111 and 112.
  • These elements include for example a tab 111 capable of engaging in an orifice 113 of the cage 104; 105.
  • a spring 115 is placed at the bottom of each cage 104; 105, against the shutter 110.
  • This spring 115 serves to exert on the associated brush 13 a force tending to apply it against the collector 12 of the starter.
  • the brush holder assembly 102 is fixed on the support for example by folding the tabs or tabs of this assembly onto the support.
  • the brushes 13 are separated from each other.
  • the support 85 has a recess 120 and receives a brush holder assembly 130 provided with cages 131 and 132 arranged on either side of the support 85.
  • the cages 131 and 132 communicate with each other through the recess 120 so that the brushes 13 placed in these cages are contiguous.
  • the assembly 130 includes two lugs 134 allowing this assembly 130 to be riveted onto the support 85.
  • the assembly 130 further comprises two side crimping lugs 135 arranged to be crimped onto the support 85, on its two opposite faces.
  • FIG. 15 shows the legs 135 in the folded position.
  • the assembly 130 is made in one piece.
  • the brush holder assembly 140 comprises, in addition to the riveting lugs 134, a stop formed on a folded front tongue 141 of the assembly 140.
  • Two retaining flaps 142 are provided on the assembly 140 to apply on two opposite sides of the support 85.
  • the brush holder assembly 140 further comprises latching tabs 145, at the rear, to engage on supports 146 of the support 85 to immobilize, in connection with the stop effect at the front, the assembly 140 on support 85.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)

Claims (10)

  1. Anlasser eines Kraftfahrzeugs, umfassend:
    • einen Rotor (2), der sich um eine Drehachse (X) drehen kann,
    • einen Stator (3) um den Rotor (2) herum,
    • einen Starter (19), der verschiebbar auf einer Antriebswelle (18) montiert ist und durch den Rotor (2) um die Drehachse (X) in Drehung versetzt werden kann, und
    • eine Bürsteneinrichtung,
    wobei die Einrichtung Folgendes umfasst:
    - mindestens zwei Bürsten (13), die dazu eingerichtet sind, auf einem Kollektor (12) des Anlassers zu schleifen, wenn dieser in Betrieb ist, wobei diese Bürsten im Wesentlichen fluchtend auf einer Geraden angeordnet sind, die parallel zu einer Drehachse (X) des Kollektors verläuft,
    - eine Bürstenträgeranordnung (130) und
    - einen Träger (85), an dem die Bürstenträgeranordnung montiert ist, wobei der Anlasser dadurch gekennzeichnet ist, dass die Bürstenträgeranordnung mindestens zwei Käfige (131, 132) beinhaltet, die jeweils dazu eingerichtet sind, eine der Bürsten aufzunehmen, dass die Bürstenträgeranordnung so eingerichtet ist, dass die zwei Käfige (131, 132) nach der Montage an dem Träger im Wesentlichen auf beiden Seiten des Trägers angeordnet sind, wobei der Träger eine Ringform senkrecht zu der Drehachse (X) aufweist,
    und dass der Träger eine Aussparung (120) zwischen den zwei Käfigen der Bürstenträgeranordnung umfasst, sodass die Bürsten durch die Aussparung (120) hindurch miteinander in Kontakt kommen.
  2. Anlasser nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Bürstenträgeranordnung (130) einteilig hergestellt ist.
  3. Anlasser nach Anspruch 1, dadurch gekennzeichnet, dass die Bürstenträgeranordnung aus zwei zusammengefügten Teilen hergestellt ist, beispielsweise durch Schweißen oder Kleben, wobei jedes Teil einen der Käfige der Bürstenträgeranordnung bildet.
  4. Anlasser nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bürstenträgeranordnung dazu eingerichtet ist, durch Einrasten oder Crimpen an dem Träger montiert zu werden.
  5. Anlasser nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bürstenträgeranordnung (60) mindestens zwei Käfige (60, 61) umfasst, die fest miteinander verbunden sind.
  6. Anlasser nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bürstenträgeranordnung durch Formen oder durch Schneiden und Biegen eines Bleches hergestellt ist.
  7. Anlasser nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zwei Käfige der Bürstenträgeranordnung durch ein Scharnier (65) miteinander verbunden sind.
  8. Anlasser nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Träger eine elektrisch leitfähige Schicht (87) umfasst, die zwischen zwei elektrisch isolierende Schichten (86) eingefügt ist.
  9. Anlasser nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jeder Käfig mindestens eine Feder (115) aufnimmt, an der die in diesen Käfig eingesetzte Bürste (13) anliegt.
  10. Verfahren zur Fertigung eines Kraftfahrzeuganlassers nach einem beliebigen der Ansprüche 1 bis 9, wobei das Verfahren die folgenden Schritte umfasst:
    - Montieren der Bürstenträgeranordnung an dem Träger, dann
    - Einsetzen der Bürsten in die jeweiligen Käfige.
EP09784488.0A 2008-07-24 2009-07-09 Bürsteneinrichtung für einen kraftfahrzeuganlasser Active EP2313951B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0855060A FR2934436B1 (fr) 2008-07-24 2008-07-24 Dispositif a balais pour demarreur de vehicule automobile
FR0855053A FR2934435B1 (fr) 2008-07-24 2008-07-24 Dispositif a balais pour demarreur de vehicule automobile
PCT/FR2009/051357 WO2010010270A2 (fr) 2008-07-24 2009-07-09 Dispositif a balais pour demarreur de vehicule automobile

Publications (3)

Publication Number Publication Date
EP2313951A2 EP2313951A2 (de) 2011-04-27
EP2313951B1 true EP2313951B1 (de) 2024-02-28
EP2313951C0 EP2313951C0 (de) 2024-02-28

Family

ID=41567231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09784488.0A Active EP2313951B1 (de) 2008-07-24 2009-07-09 Bürsteneinrichtung für einen kraftfahrzeuganlasser

Country Status (3)

Country Link
EP (1) EP2313951B1 (de)
CN (1) CN102113186B (de)
WO (1) WO2010010270A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106782964B (zh) * 2017-01-21 2019-01-18 东莞市钺河自动化科技有限公司 一种电位器的自动组装机
FR3069982A1 (fr) * 2017-08-04 2019-02-08 Valeo Equipements Electriques Moteur Porte balais pour demarreur de vehicule automobile
DE102021122065B3 (de) 2021-08-26 2022-11-17 Audi Aktiengesellschaft Bürstenträger zur Halterung von wenigstens zwei Bürsten für eine Schleifkontaktanordnung, elektrische Maschine und Kraftfahrzeug
WO2023210091A1 (ja) * 2022-04-28 2023-11-02 株式会社アイシン 巻線界磁式回転電機及び給電装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114061A (en) * 1977-03-07 1978-09-12 Eltra Corporation Brush cage for a dynamoelectric machine
EP1843451A1 (de) * 2006-04-03 2007-10-10 Valeo Equipements Electriques Moteur Bürstenhaltervorrichtung für eine elektrische Maschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1954910A (en) * 1929-12-31 1934-04-17 Eclipse Aviat Corp Brush mounting for electrical machines
IT8553611V0 (it) * 1985-07-19 1985-07-19 Magneti Marelli Spa Perfezionamenti nei portaspazzole per macchine elettriche a collettore particolarmente per motori di avviamento
JPH0318658U (de) * 1989-06-28 1991-02-25
US5731650A (en) * 1994-11-14 1998-03-24 Lucas Aerospace Power Equipment Corp. Dynamoelectric machine with brush wear sensor
US5753992A (en) * 1996-11-07 1998-05-19 Delco Remy America Inc Single piece brush fixture for dynamoelectric machine
US6909218B2 (en) * 2003-02-26 2005-06-21 Black & Decker Inc. End cap and brush box assembly
FR2858124B1 (fr) * 2003-07-23 2005-11-18 Valeo Embrayages Porte-balais de moteur electrique, moteur electrique et actionneur
DE102004062840B3 (de) * 2004-12-27 2006-10-05 Hilti Ag Bürstengrundplatte mit Bürstenführungsblech

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114061A (en) * 1977-03-07 1978-09-12 Eltra Corporation Brush cage for a dynamoelectric machine
EP1843451A1 (de) * 2006-04-03 2007-10-10 Valeo Equipements Electriques Moteur Bürstenhaltervorrichtung für eine elektrische Maschine

Also Published As

Publication number Publication date
EP2313951A2 (de) 2011-04-27
CN102113186A (zh) 2011-06-29
WO2010010270A2 (fr) 2010-01-28
CN102113186B (zh) 2014-06-25
EP2313951C0 (de) 2024-02-28
WO2010010270A3 (fr) 2010-03-25

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