WO2010037678A2 - Collecteur et procédé de fabrication de celui-ci - Google Patents

Collecteur et procédé de fabrication de celui-ci Download PDF

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Publication number
WO2010037678A2
WO2010037678A2 PCT/EP2009/062330 EP2009062330W WO2010037678A2 WO 2010037678 A2 WO2010037678 A2 WO 2010037678A2 EP 2009062330 W EP2009062330 W EP 2009062330W WO 2010037678 A2 WO2010037678 A2 WO 2010037678A2
Authority
WO
WIPO (PCT)
Prior art keywords
commutator
ring
armature
reinforcing ring
radially
Prior art date
Application number
PCT/EP2009/062330
Other languages
German (de)
English (en)
Other versions
WO2010037678A3 (fr
Inventor
Olaf Pflugmacher
Frank Pape
Juergen Klingel
Wolfgang Hecht
Matthias Schick
Thomas Finke
Thomas Bock
Andreas Stein
Rolf Stolte
Joerg Wolkowicz
Werner Liebig
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2010037678A2 publication Critical patent/WO2010037678A2/fr
Publication of WO2010037678A3 publication Critical patent/WO2010037678A3/fr

Links

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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/06—Manufacture of commutators
    • 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
    • H01R39/04—Commutators

Definitions

  • the invention relates to a commutator and a corresponding manufacturing method.
  • the molding compound has the task of electrically separating the individual lamellae so that there is no short circuit between two adjacent lamellae.
  • the commutator is punched, for example, from an L-copper profile, which is provided with a dovetail profile in the direction of rotation. This dovetail is the commutator for dimensional stability at high speeds crucial and serves as an anchorage in the molding compound.
  • the current trend in car starters is that the starter should increasingly take over a run-up support of the engine. Therefore, the starter has to afford higher and higher rotor speeds (over 38,000 rpm).
  • the invention presented here is provided. He has a dovetail (in the longitudinal direction) and a reinforcing ring. It has been shown that the combination of dovetail and reinforcing ring makes sense for a significant increase in the maximum permissible speed.
  • the reinforcing ring is a glass fiber reinforced plastic ring, which is inserted in a wedge shape in the commutator pressure ring and caulked.
  • the reinforcing ring in combination with the dovetail provides a significant improvement in stiffness or speed resistance.
  • Commutator can thus endure much higher speeds and temperatures permanently.
  • FIG. 1 shows a starting device in a longitudinal section
  • Figure 2 shows a longitudinal section through the commutator
  • Figure 3a, 3b and 3c different manufacturing steps for the commutator.
  • Figure 1 shows an electrical machine as a starting device in a
  • This starting device 10 has, for example, a starter motor 13 and an engagement relay 16.
  • the starter motor 13 and the engagement relay 16 are attached to a common drive bearing plate 19.
  • the starter motor 13 is functionally to drive a starter pinion 22 when it is meshed in the ring gear 25 of the internal combustion engine, not shown here.
  • the starter motor 13 has a pole tube as a housing 28, which carries on its inner circumference pole pieces 31, which are each wrapped by a field winding 34.
  • the pole shoes 31 in turn surround an armature 37, which has an armature packet constructed from fins 40 and arranged in grooves 46 Armature winding 49 has.
  • the armature package 43 is pressed onto a drive shaft 44.
  • a commutator 52 is further attached, which is composed, inter alia, of individual commutator fins 55.
  • the commutator bars 55 are so electrically connected in a known manner with the armature winding 49 that results in energizing the commutator fins 55 by carbon brushes 58, a rotational movement of the armature 37 in the pole tube 28.
  • the drive shaft 13 is commutator side supported with a shaft journal 64 in a sliding bearing 67, which in turn is held stationary in a Kommutatorlagerdeckel 70.
  • the commutator 70 is in turn secured by means of tie rods 73 which are arranged distributed over the circumference of the pole tube 28 (screws, for example, 2, 3 or 4 pieces) in the drive bearing plate 19. It relies while the pole tube 28 am
  • a so-called sun gear 80 connects to the armature 37, which is part of a planetary gear 83.
  • the sun gear 80 is surrounded by a plurality of planetary gears 86, usually 3 planetary gears 37, by means of
  • Rolling bearings 89 are supported on journals 92.
  • the planet gears 37 roll in a ring gear 95, which is mounted outside in the pole tube 28.
  • the planet gears 37 are followed by a planetary carrier 98, in which the axle journals 92 are received.
  • the planet carrier 98 is in turn in an intermediate storage 101 and a slide bearing arranged therein
  • the intermediate bearing 101 is designed cup-shaped, that in this both the planet carrier 98, and the planet wheels 86 are added. Furthermore, in the cup-shaped intermediate bearing 101, the ring gear 95 is arranged, which is ultimately closed by a cover 107 relative to the armature 37.
  • the intermediate storage 101 is supported by his
  • the armature 37 has on the end facing away from the commutator 52 end of the drive shaft 13 to another shaft journal 1 10, which is also received in a sliding bearing 1 13, from.
  • the slide bearing 1 13 in turn is received in a central bore of the planet carrier 98.
  • the planet carrier 98 is integral with the Output shaft 1 16 connected.
  • This output shaft is supported with its end facing away from the intermediate bearing 101 end 1 19 in a further bearing 122 which is fixed in the drive bearing plate 19.
  • the output shaft 1 16 is divided into different sections: Thus, the section which is arranged in the sliding bearing 104 of the intermediate bearing 101, a section follows with a so-called
  • Spur gear 125 (internal toothing), which is part of a so-called shaft-hub connection.
  • This shaft-hub connection 128 in this case allows the axially rectilinear sliding of a driver 131.
  • This driver 131 is a sleeve-like extension which is integral with a cup-shaped outer ring 132 of the freewheel 137.
  • This freewheel 137 (Richtgesperre) consists of
  • the inner ring 140 is formed integrally with the starter pinion 22 and its helical teeth 143 (external helical teeth).
  • the push-in relay 16 has a bolt 150, which is an electrical contact and which is connected to the positive pole of an electric starter battery, which is not shown here.
  • This bolt 150 is passed through a relay cover 153.
  • This relay cover 153 includes
  • Relay housing 156 which is fastened by means of several fasteners 159 (screws) on the drive end plate 19.
  • a pull-in winding 162 and a so-called holding winding 165 is further arranged.
  • the pull-in winding 162 and the holding winding 165 each cause an electromagnetic field in the switched-on state, which flows through both the relay housing 156 (made of electromagnetically conductive material), a linearly movable armature 168 and an armature return 171.
  • the armature 168 carries a push rod 174, which is moved in the direction of linear retraction of the armature 168 in the direction of a switching pin 177.
  • the engagement relay 16 or the armature 168 also has the task, with a tension member 187 to move the drive bearing plate 19 rotatably arranged lever.
  • This lever 190 usually designed as a fork lever, surrounds with two "tines" not shown here on its outer circumference two discs 193 and 194 to move a trapped between these driver ring 197 for freewheel 137 towards the resistance of the spring 200 and thereby the starter pinion 22 technicallyspuren in the ring gear 25.
  • Figure 2 shows a detail of a longitudinal section through the commutator 52.
  • a commutator 55 is shown in a side view.
  • the commutator plate 55 has a connection side 300, at which the commutator plate 55 is electrically conductively connected to the armature winding 49.
  • connection side 300 at which the commutator plate 55 is electrically conductively connected to the armature winding 49.
  • Commutator 52 are arranged some Kommutatorlamellen 55, which are held individually and spaced from each other in a molding compound 303.
  • the molding compound 303 anchors the commutator segments 55, for example, by means of a dovetail profile 306, which is formed in the longitudinal direction (direction of rotation) of the commutator 52, thus extending with its profile in the longitudinal direction.
  • the commutator lamella 55 has a branch 312 which starts from a radial underside 315 of the commutator lamella 55 and extends in the axial direction
  • the blade 53 has a groove 318 on.
  • a Arming ring 327 used, which is also used in the corresponding grooves 318 of the other commutator fins 55.
  • the commutator fins 55 are first arranged such that all the grooves 318 are oriented in one and the same direction and arranged in a circle. All commutator fins 55 are held so that there is a gap between them.
  • the reinforcing ring 327 is inserted into the grooves 318.
  • the radially outer leg 324 is chamfered on its radially inner side to facilitate the insertion of the reinforcing ring 327.
  • the radially inner leg 312 is split, so that this leg 312 is split into two partial legs 330 and 333 and a gap 334 is limited by this.
  • the radially outer part leg 333 is bent by a splitting tool so that this outer part leg 333 is arranged obliquely to the axial direction 336.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

L'invention concerne un collecteur (52) pour la connexion électrique du bobinage (49) de l'induit (37) d'une machine électrique, comprenant des lames de collecteur (55) lesquelles comportent, au moins à une extrémité axiale (309), une encoche (318) ouverte dans la direction axiale, chaque encoche étant délimitée par des bras (321, 324), et un anneau d'armature (327) étant inséré dans les encoches (318). Le collecteur est caractérisé en ce que le bras (321) disposé radialement à l'intérieur présente une contre-dépouille axiale de sorte que l'anneau d'armature (327) est bloqué dans sa position. L'invention concerne également un procédé de fabrication d'un collecteur, consistant à prendre des lames de collecteur (55) et à les disposer dans un sens périphérique pour former un anneau cylindrique, puis à insérer un anneau d'armature (318) dans une encoche (318) formée entre un bras placé radialement à l'intérieur (312) et un bras placé radialement à l'extérieur (324), ce procédé étant caractérisé en ce qu'après l'insertion de l'anneau d'armature (318), le bras radialement à l'intérieur (312) est fendu et la section (333) dudit bras intérieur (312) qui se trouve radialement à l'extérieur est repliée vers l'extérieur dans le sens radial.
PCT/EP2009/062330 2008-09-30 2009-09-23 Collecteur et procédé de fabrication de celui-ci WO2010037678A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008042507.9 2008-09-30
DE200810042507 DE102008042507A1 (de) 2008-09-30 2008-09-30 Kommutator und Herstellungsverfahren für einen solchen

Publications (2)

Publication Number Publication Date
WO2010037678A2 true WO2010037678A2 (fr) 2010-04-08
WO2010037678A3 WO2010037678A3 (fr) 2010-11-25

Family

ID=41719669

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/062330 WO2010037678A2 (fr) 2008-09-30 2009-09-23 Collecteur et procédé de fabrication de celui-ci

Country Status (2)

Country Link
DE (1) DE102008042507A1 (fr)
WO (1) WO2010037678A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056882A (en) * 1973-10-05 1977-11-08 Airscrew Howden Limited Method of making a dimensionally stable commutator
FR2624315A1 (fr) * 1987-12-07 1989-06-09 Equip Electr Moteur Collecteur frontal pour machine electrique tournante
EP0350855A2 (fr) * 1988-07-14 1990-01-17 Kautt & Bux Commutator GmbH Collecteur et sa méthode de fabrication
WO1995022185A1 (fr) * 1994-02-10 1995-08-17 Comtrade Handelsgesellschaft Mbh Bague d'armature pour corps tournants

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056882A (en) * 1973-10-05 1977-11-08 Airscrew Howden Limited Method of making a dimensionally stable commutator
FR2624315A1 (fr) * 1987-12-07 1989-06-09 Equip Electr Moteur Collecteur frontal pour machine electrique tournante
EP0350855A2 (fr) * 1988-07-14 1990-01-17 Kautt & Bux Commutator GmbH Collecteur et sa méthode de fabrication
WO1995022185A1 (fr) * 1994-02-10 1995-08-17 Comtrade Handelsgesellschaft Mbh Bague d'armature pour corps tournants

Also Published As

Publication number Publication date
DE102008042507A1 (de) 2010-04-01
WO2010037678A3 (fr) 2010-11-25

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