EP0969573A1 - Brush holder for vehicle alternator, with protected connection areas - Google Patents

Brush holder for vehicle alternator, with protected connection areas Download PDF

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Publication number
EP0969573A1
EP0969573A1 EP99111699A EP99111699A EP0969573A1 EP 0969573 A1 EP0969573 A1 EP 0969573A1 EP 99111699 A EP99111699 A EP 99111699A EP 99111699 A EP99111699 A EP 99111699A EP 0969573 A1 EP0969573 A1 EP 0969573A1
Authority
EP
European Patent Office
Prior art keywords
brush holder
housing
cover
braids
connection areas
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
EP99111699A
Other languages
German (de)
French (fr)
Other versions
EP0969573B1 (en
Inventor
Mathieu Vandenbossche
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
Application filed by Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP0969573A1 publication Critical patent/EP0969573A1/en
Application granted granted Critical
Publication of EP0969573B1 publication Critical patent/EP0969573B1/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24—Assembling by moulding on contact members

Definitions

  • the invention relates to brush holders for vehicle alternator.
  • brush holders for alternator comprising a housing defining housings for broom.
  • the brushes are electrically connected to metallic traces of the case by means of braids connected to the tracks.
  • This connection is made to by means of a mechanical fixing as in the document FR-2 732 831, for example by riveting, or by welding, for example a soft lead solder or of tin, or an electric solder.
  • the connection as well obtained is then protected by clipping a cover or the deposit of a gel allowing the resistance to fog saline.
  • such protection is relatively expensive to realize.
  • An object of the invention is to provide a protection of a different type and less expensive for connection areas, in order to lower the price of comes back from the brush holder and the alternator.
  • a brush holder for vehicle alternator comprising a case, braids of brooms and metallic traces having electrical connection areas with braids, in which part of the case is overmolded on the connection areas.
  • the housing comprising a body defining brush housings, the part of case being a cover, the body is molded, the steps of body molding and hood molding being immediately consecutive.
  • a brush holder for vehicle alternator, comprising a case, dice braids of brushes and metallic traces having electrical connection areas with braids, part of the case is overmolded on the connection areas.
  • This brush holder is obtained by the process of the invention.
  • the housing further comprising a body defining brush housings, the part of housing constitutes a cover closing the housings.
  • the body and the cover are made of different plastics one the other.
  • the body and the cover are made of the same plastic.
  • a vehicle alternator comprising a brush holder according to the invention.
  • the brush holder 2 comprises a housing 4 here consisting of a body 6 and a cover 8.
  • the body 6 defines two profiled housings 11 with cross section rectangular and axes 10 parallel to each other.
  • Each housing 11 opens at two axial ends opposite of the body 6.
  • Each housing 11 receives a brush 14 in the shape of a rectangular parallelepiped suitable for slide into the housing.
  • each broom 14 is illustrated in its least retracted position in the housing 11 and in its outermost position at housing projecting from one end of the housing intended to extend opposite a manifold 16 of the alternator.
  • the brushes 14 are intended to come in electrical contact with cylindrical tracks respective arranged on the collector 16 so known per se.
  • the brushes 14 extend with their axes 10 radials to axis 13 of manifold 16.
  • the cover 8 closes one end of the housings 11 furthest from the collector 16. In each dwelling, a return spring 18 bears against the cover 8 to apply the brush 14 towards the collector 16.
  • Two respective metallic traces 20 extend in the cover 8 and are visible in section in the figure. They respectively connect the brushes 14 to alternator control devices.
  • the brush holder has two metal braids 22 associated with respective brushes and each having one end fixed to the broom and another end connected electrically, for example welded, trace associated metallic 20 by constituting a zone of connection. Four each braid 22, the solder is confused with trace 20 in the figure.
  • the cover 8 is overmolded on the end of the braid 22, the solder and the end of the trace 20 associated with each brush 14.
  • the cover 8 is overmolded on these zones connection and on the body 6.
  • the cover 8 can be molded in the same plastic as the material plastic constituting the body 6, or else in a different plastic.
  • the invention also relates to alternator starters.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The brush holder has an outer cover (4) holding inner springs and central metallic connections (22). The end of the metallic connection is connected to a metallic surface, and moulding is carried out (8) over the connection zones, consecutively to the cover moulding.

Description

L'invention concerne les porte-balais pour alternateur de véhicule.The invention relates to brush holders for vehicle alternator.

On connaít des porte-balais pour alternateur comprenant un boítier définissant des logements pour des balais. Les balais sont connectés électriquement à des traces métalliques du boítier au moyen de tresses connectées aux traces. Cette connexion est effectuée au moyen d'une fixation mécanique comme dans le document FR-2 732 831, par exemple par rivetage, ou par soudure, par exemple une soudure tendre à base de plomb ou d'étain, ou une soudure électrique. La connexion ainsi obtenue est ensuite protégée par le clipsage d'un capot ou le dépôt d'un gel permettant la tenue au brouillard salin. Toutefois, une telle protection est relativement onéreuse à réaliser.We know brush holders for alternator comprising a housing defining housings for broom. The brushes are electrically connected to metallic traces of the case by means of braids connected to the tracks. This connection is made to by means of a mechanical fixing as in the document FR-2 732 831, for example by riveting, or by welding, for example a soft lead solder or of tin, or an electric solder. The connection as well obtained is then protected by clipping a cover or the deposit of a gel allowing the resistance to fog saline. However, such protection is relatively expensive to realize.

Un but de l'invention est de fournir une protection d'un type différent et moins onéreux pour les zones de connexion, en vue de diminuer le prix de revient du porte-balais et de l'alternateur.An object of the invention is to provide a protection of a different type and less expensive for connection areas, in order to lower the price of comes back from the brush holder and the alternator.

En vue de la réalisation de ce but, on prévoit selon l'invention un procédé de fabrication d'un porte-balais pour alternateur de véhicule, comprenant un boítier, des tresses de balais et des traces métalliques présentant des zones de connexion électrique avec les tresses, dans lequel on surmoule une partie du boítier sur les zones de connexion.In order to achieve this goal, provision is made according to the invention a method of manufacturing a brush holder for vehicle alternator, comprising a case, braids of brooms and metallic traces having electrical connection areas with braids, in which part of the case is overmolded on the connection areas.

Ainsi, cette étape de surmoulage est peu onéreuse à mettre en oeuvre, ce qui diminue le prix de revient du porte-balais et de l'alternateur dont il fait partie.So, this overmolding step is little expensive to implement, which reduces the price of comes back from the brush holder and from the alternator it makes part.

Avantageusement, le boítier comprenant un corps définissant des logements de balais, la partie de boítier étant un capot, on moule le corps, les étapes de moulage du corps et de surmoulage du capot étant immédiatement consécutives. Advantageously, the housing comprising a body defining brush housings, the part of case being a cover, the body is molded, the steps of body molding and hood molding being immediately consecutive.

Ainsi, les deux opérations étant communes, on réalise encore un gain économique.Thus, the two operations being common, we still realizes an economic gain.

On prévoit également selon l'invention un porte-balais pour alternateur de véhicule, comprenant un boítier, dés tresses de balais et des traces métalliques présentant des zones de connexion électrique avec les tresses, une partie du boítier est surmoulée sur les zones de connexion.According to the invention, a brush holder is also provided. for vehicle alternator, comprising a case, dice braids of brushes and metallic traces having electrical connection areas with braids, part of the case is overmolded on the connection areas.

Ce porte-balais est obtenu au moyen du procédé de l'invention.This brush holder is obtained by the process of the invention.

Avantageusement, le boítier comprenant en outre un corps définissant des logements de balais, la partie de boítier constitue un capot obturant les logements.Advantageously, the housing further comprising a body defining brush housings, the part of housing constitutes a cover closing the housings.

Avantageusement, le corps et le capot sont réalisés dans des matières plastiques différentes l'une de l'autre.Advantageously, the body and the cover are made of different plastics one the other.

Avantageusement, le corps et le capot sont réalisés dans une même matière plastique.Advantageously, the body and the cover are made of the same plastic.

On prévoit encore selon l'invention un alternateur de véhicule comprenant un porte-balais selon l'invention.There is also provided according to the invention a vehicle alternator comprising a brush holder according to the invention.

D'autres caractéristiques et avantages de l'invention apparaítront encore dans la description suivante d'un mode préféré de réalisation donné à titre d'exemple non limitatif. Au dessin annexe :

  • la figure unique est une vue d'un porte-balais selon l'invention et d'un collecteur de l'alternateur le recevant, en coupe suivant le plan commun des axes des logements de balais.
Other features and advantages of the invention will appear in the following description of a preferred embodiment given by way of non-limiting example. In the accompanying drawing:
  • the single figure is a view of a brush holder according to the invention and of a collector of the alternator receiving it, in section along the common plane of the axes of the brush housings.

En référence à la figure, le porte-balais 2 comporte un boítier 4 constitué ici d'un corps 6 et d'un capot 8. De façon connue en soi, le corps 6 définit deux logements profilés 11 à section transversale rectangulaire et d'axes 10 parallèles l'un à l'autre. Chaque logement 11 débouche à deux extrémités axiales opposées du corps 6. Chaque logement 11 reçoit un balai 14 en forme de parallélépipède rectangle apte à coulisser dans le logement. Sur la figure, chaque balai 14 est illustré dans sa position la moins rentrée dans le logement 11 et dans sa position la plus extérieure au logement faisant saillie d'une extrémité du logement destinée à s'étendre en regard d'un collecteur 16 de l'alternateur. Les balais 14 sont destinés à venir en contact électrique avec des pistes cylindriques respectives disposées sur le collecteur 16 de façon connue en soi. Les balais 14 s'étendent avec leurs axes 10 radiaux à l'axe 13 du collecteur 16.With reference to the figure, the brush holder 2 comprises a housing 4 here consisting of a body 6 and a cover 8. In a manner known per se, the body 6 defines two profiled housings 11 with cross section rectangular and axes 10 parallel to each other. Each housing 11 opens at two axial ends opposite of the body 6. Each housing 11 receives a brush 14 in the shape of a rectangular parallelepiped suitable for slide into the housing. In the figure, each broom 14 is illustrated in its least retracted position in the housing 11 and in its outermost position at housing projecting from one end of the housing intended to extend opposite a manifold 16 of the alternator. The brushes 14 are intended to come in electrical contact with cylindrical tracks respective arranged on the collector 16 so known per se. The brushes 14 extend with their axes 10 radials to axis 13 of manifold 16.

Le capot 8 obture une extrémité des logements 11 la plus éloignée du collecteur 16. Dans chaque logement, un ressort de rappel 18 est en appui contre le capot 8 pour solliciter le balai 14 en direction du collecteur 16. Deux traces métalliques respectives 20 s'étendent dans le capot 8 et sont visibles en coupe sur la figure. Elles connectent respectivement les balais 14 à des organes de commande de l'alternateur. Le porte-balais comporte deux tresses métalliques 22 associées aux balais respectifs et ayant chacune une extrémité fixée au balai et une autre extrémité connectée électriquement, par exemple soudée, a la trace métallique associée 20 en constituant une zone de connexion. Four chaque tresse 22, la soudure est confondue avec la trace 20 sur la figure. Le capot 8 est surmoulé sur l'extrémité de la tresse 22, la soudure et l'extrémité de la trace 20 associées à chaque balai 14.The cover 8 closes one end of the housings 11 furthest from the collector 16. In each dwelling, a return spring 18 bears against the cover 8 to apply the brush 14 towards the collector 16. Two respective metallic traces 20 extend in the cover 8 and are visible in section in the figure. They respectively connect the brushes 14 to alternator control devices. The brush holder has two metal braids 22 associated with respective brushes and each having one end fixed to the broom and another end connected electrically, for example welded, trace associated metallic 20 by constituting a zone of connection. Four each braid 22, the solder is confused with trace 20 in the figure. The cover 8 is overmolded on the end of the braid 22, the solder and the end of the trace 20 associated with each brush 14.

Pour fabriquer le porte-balais, on moule le corps 6, puis on installe dans les logements de celui-ci les tresses 22 préalablement soudées aux traces 20 associées. Enfin, on surmoule le capot 8 sur ces zones de connexion et sur le corps 6. Le capot 8 peut être surmoulé dans la même matière plastique que la matière plastique constituant le corps 6, ou bien dans une matière plastique différente. To make the brush holder, we mold the body 6, then we install in the housings of it the braids 22 previously welded to the traces 20 associated. Finally, the cover 8 is overmolded on these zones connection and on the body 6. The cover 8 can be molded in the same plastic as the material plastic constituting the body 6, or else in a different plastic.

L'invention concerne également les alternodémarreurs.The invention also relates to alternator starters.

Claims (7)

Procédé de fabrication d'un porte-balais (2) pour alternateur de véhicule, comprenant un boítier (4), des tresses (22) de balais (14) et des traces métalliques (20) présentant des zones de connexion électrique avec les tresses, caractérisé en ce qu'on surmoule une partie (8) du boítier sur les zones de connexion.Method of manufacturing a brush holder (2) for vehicle alternator, comprising a housing (4), braids (22) of brushes (14) and traces metallic (20) having connection zones electric with braids, characterized in that molds part (8) of the housing on the areas of connection. Procédé selon la revendication 1, caractérisé en ce que, le boítier (4) comprenant un corps (6) définissant des logements de balais (11), la partie de boítier étant un capot, on moule le corps (6), les étapes de moulage du corps et de surmoulage du capot étant immédiatement consécutives.Method according to claim 1, characterized in that, the housing (4) comprising a body (6) defining brush housings (11), the part of case being a cover, the body (6) is molded, the body molding and hood molding steps being immediately consecutive. Porte-balais (2) pour alternateur de véhicule, comprenant un boítier (4), des tresses (22) de balais (14) et des traces métalliques (20) présentant des zones de connexion électrique avec les tresses, caractérisé en ce qu'une partie (8) du boítier est surmoulée sur les zones de connexion.Brush holder (2) for vehicle, comprising a housing (4), braids (22) of brushes (14) and metallic traces (20) presenting electrical connection areas with braids, characterized in that a part (8) of the housing is overmolded on the connection areas. Porte-balais (2) selon la revendication 3, caractérisé en ce que, le boítier (4) comprenant en outre un corps (6) définissant des logements (11) de balais, la partie (8) de boítier constitue un capot obturant les logements.Brush holder (2) according to claim 3, characterized in that, the housing (4) comprising in besides a body (6) defining housings (11) of brushes, the housing part (8) constitutes a cover closing the housing. Porte-balais (2) selon la revendication 3 ou 4, caractérisé en ce que le corps (6) et le capot (8) sont réalisés dans des matières plastiques différentes l'une de l'autre.Brush holder (2) according to claim 3 or 4, characterized in that the body (6) and the cover (8) are made of different plastics one from the other. Porte-balais (2) selon la revendication 3 ou 4, caractérisé en ce que le corps (6) et le capot (8) sont réalisés dans une même matière plastique.Brush holder (2) according to claim 3 or 4, characterized in that the body (6) and the cover (8) are made of the same plastic. Alternateur de véhicule, caractérisé en ce qu'il comprend un porte-balais (2) selon l'une quelconque des revendications 3 à 6.Vehicle alternator, characterized in that it includes a brush holder (2) according to one any of claims 3 to 6.
EP19990111699 1998-07-02 1999-06-17 Brush holder for vehicle alternator, with protected connection areas Expired - Lifetime EP0969573B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9808456 1998-07-02
FR9808456A FR2780829B1 (en) 1998-07-02 1998-07-02 BRUSH HOLDER FOR VEHICLE ALTERNATOR, WITH PROTECTED CONNECTION AREAS

Publications (2)

Publication Number Publication Date
EP0969573A1 true EP0969573A1 (en) 2000-01-05
EP0969573B1 EP0969573B1 (en) 2003-10-15

Family

ID=9528167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990111699 Expired - Lifetime EP0969573B1 (en) 1998-07-02 1999-06-17 Brush holder for vehicle alternator, with protected connection areas

Country Status (4)

Country Link
EP (1) EP0969573B1 (en)
DE (1) DE69912035T2 (en)
ES (1) ES2209283T3 (en)
FR (1) FR2780829B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017202549B4 (en) 2017-02-16 2021-10-14 Schunk Carbon Technology Gmbh Brush module

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1928513A1 (en) * 1968-06-27 1970-02-12 Philips Nv Carbon brush construction for an electrodynamic machine
US4404487A (en) * 1980-12-26 1983-09-13 Nippondenso Co., Ltd. Brush holding device for alternators
US4859894A (en) * 1986-09-01 1989-08-22 Mitsuba Electric Mfg. Co., Ltd. Alternating current generator for use in a vehicle
US5227688A (en) * 1990-09-27 1993-07-13 Mitsubishi Denki K. K. Brush holder for vehicular A.C. generator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1928513A1 (en) * 1968-06-27 1970-02-12 Philips Nv Carbon brush construction for an electrodynamic machine
US4404487A (en) * 1980-12-26 1983-09-13 Nippondenso Co., Ltd. Brush holding device for alternators
US4859894A (en) * 1986-09-01 1989-08-22 Mitsuba Electric Mfg. Co., Ltd. Alternating current generator for use in a vehicle
US5227688A (en) * 1990-09-27 1993-07-13 Mitsubishi Denki K. K. Brush holder for vehicular A.C. generator

Also Published As

Publication number Publication date
DE69912035T2 (en) 2004-08-26
FR2780829A1 (en) 2000-01-07
DE69912035D1 (en) 2003-11-20
ES2209283T3 (en) 2004-06-16
FR2780829B1 (en) 2000-09-29
EP0969573B1 (en) 2003-10-15

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