EP1897183B1 - Ebauche de conducteur pour un commutateur a tambour, procede de fabrication de ladite ebauche et commutateur a tambour ainsi obtenu - Google Patents

Ebauche de conducteur pour un commutateur a tambour, procede de fabrication de ladite ebauche et commutateur a tambour ainsi obtenu Download PDF

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Publication number
EP1897183B1
EP1897183B1 EP06753897A EP06753897A EP1897183B1 EP 1897183 B1 EP1897183 B1 EP 1897183B1 EP 06753897 A EP06753897 A EP 06753897A EP 06753897 A EP06753897 A EP 06753897A EP 1897183 B1 EP1897183 B1 EP 1897183B1
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EP
European Patent Office
Prior art keywords
anchor
conductor
ties
anchor ties
conductor segments
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.)
Not-in-force
Application number
EP06753897A
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German (de)
English (en)
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EP1897183A1 (fr
Inventor
Marko Vihtelic
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Kolektor Group doo
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Kolektor Group doo
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Publication date
Application filed by Kolektor Group doo filed Critical Kolektor Group doo
Publication of EP1897183A1 publication Critical patent/EP1897183A1/fr
Application granted granted Critical
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Not-in-force 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
    • H01R39/04—Commutators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49011—Commutator or slip ring assembly

Definitions

  • the present invention relates to an annularly closed conductor blank for a Trommelkommutator, with conductor segments which are interconnected via bridge parts, wherein the conductor segments arranged on a front side terminal projections and inwardly, for anchoring the conductor segments in a carrier body certain anchor tabs. Furthermore, the present invention relates to a method for producing a ring-closed conductor blank for a drum commutator, which has interconnected conductor segments via bridge parts, as well as a drum commutator manufactured using the above-mentioned conductor blank.
  • drum commutators are divided into two groups.
  • a first construction see, eg DE 1956340 . DE 2140855 . US 4598463 A .
  • DE 10244006 A1 are individual lamellae, which can be punched out of particular profile band processed.
  • the individual slats are inserted during the manufacture of the commutator in a mounting basket, which defines the exact position of the slats during the manufacture of the support body in which the slats are anchored.
  • Drum commutators made in this design meet very high quality requirements, but are relatively expensive to manufacture, so that they are generally used only in particularly high-quality electrical products.
  • a metallic Strip produced by rolling conductor blank which comprises bridge parts interconnected conductor segments processed.
  • At the corresponding annular conductor blank of the carrier body is molded. After curing of the carrier body, the bridge parts are removed and the conductor segments separated in this way.
  • drum commutators according to this design for example, the US 4705977 A . US 3492519 A . FR 2458156 A3 . US 4872255 A . GB 1561460 . EP 0019472 A2 . DE 1955122 . US 4920633 A . DE 4138829 A1 .
  • the present invention is based on the design of the conductor blank, in particular to the design features that are significantly responsible for the anchoring of the conductor segments in the carrier body.
  • the above-described problem can be solved by providing a closed ring Conductor blank of the type specified above by generating material on the radially inner surface of the strip in the conductor segments generated, forming K-shaped anchor tab pairs first anchor tabs and by inwardly directed bending of edge arranged on the strip anchoring projections produced, substantially frontal, C-shaped second Anchor straps are provided.
  • the present invention provided for the characteristic combination of different, specifically designed and arranged anchor plates can be surprisingly such a good anchoring of the conductor segments in the support body achieve that Trommelkommutatoren that are produced inexpensively using an annularly closed conductor blank, also meet such quality requirements that were previously achieved alone with elaborate and expensive drum commutators according to the single lamella design.
  • the present invention makes use of the knowledge that for the dimensional stability of the commutator as deep as possible anchoring of the conductor segments in the carrier body is advantageous even at high loads.
  • Such a deep anchoring of the conductor segments in the carrier body by correspondingly long executed first anchor straps of the K-shaped anchor strap pairs can be achieved in the present invention, in that in addition to that K-shaped anchor strap pair by inwardly directed bending produced by marginally arranged on the strip anchoring projections, essentially frontal, C-shaped second anchor tabs are provided. Only through this end anchoring of the conductor segments by means of the C-shaped second anchor tabs, it is even possible, the first Make anchor straps so long that with you a deep anchoring of the conductor segments in the carrier body is possible.
  • first anchor tabs whose feet increasingly remove from the ends of the conductor segments, so that according to the prior art, the length of the first anchor plates, if a deformation of the conductor segments should be effectively prevented, was limited to such a degree that only gave a relatively flat anchoring of the conductor segments in the carrier body.
  • the inventively provided second anchor straps can be made correspondingly long for a deep, firm anchoring of the conductor segments in the carrier body.
  • the first anchor tabs are generally machined from rib-like raised projections on the inner surface of the tab.
  • the corresponding rib-like profiling of the strip can be done in various ways known as such.
  • a preferred development of the conductor blank according to the invention is characterized in that the radial distance of the free ends of at least one of the first anchor tabs of each K-shaped anchor tab pair of the axis at most 65% of the radial distance of the radial outer surface of the conductor segments which, if necessary taking into account a mechanical reworking, defines the brush running surface of the drum commutator from the axis.
  • the corresponding distance is less than 50%.
  • the radial distance between the free ends of the axis is preferably at most 65%, more preferably less than 50% of the radial distance of the radial outer surface of the conductor segments from the axis.
  • the free ends of the second anchor tabs have a smaller distance from the axis of the conductor blank than the first anchor tabs.
  • the second anchor tabs particularly preferably end in each case essentially radially within the adjacent first anchor tabs.
  • the free ends of the first anchor straps have a smaller distance from the axis of the conductor blank than the second anchor straps, in which case the second anchor straps can each end substantially radially outside an adjacent first anchor tab.
  • Another preferred embodiment of the invention is characterized in that at the terminal projections having end side second anchor tabs are provided, the foot portions are offset from the foot portions of the terminal projections radially inwardly. This is not only favorable with regard to the secure anchoring of the conductor segments in the carrier body of the drum commutator. Rather, such a radial offset of the second anchor tabs with respect to the terminal projections is also advantageous in terms of an ideally ideal cylindrical brush surface; because the inwardly directed bending of the edge-side anchoring projections to form the front-side, C-shaped second anchor tabs after the rolling of the strip in this case does not lead to a significant deformation of the conductor segments its outer, the brush surface defining surface.
  • the corresponding anchoring projection can be formed in particular by splitting a common projection which also serves to form the terminal projections, so that first protrusions are provided on the strip at the one end edge, from which the connection projections as well as the adjoining anchoring projections, which are in the same, are split by splitting Step to the inwardly bent second anchoring straps can be deformed, emerge.
  • Such a design is favorable, especially in comparatively small sized commutators with a high number of conductor segments.
  • the conductor segments between the mutually paired first anchor plates on a circumferentially extending undercut groove can be further reduced by an additional anchoring of the conductor segments between the two first anchor tabs of each K-shaped anchor tab pair Danger of deformation of the conductor segments and thus contribute to a better dimensional stability of the drum commutator even at high speeds.
  • the strip is rolled before the first anchor tabs are formed; This is favorable in terms of the lowest possible production costs. This is not compelling, however; rather comes, provided that suitable machinery and tools are used, also considered to roll the strip only after the formation of the first anchor tabs. Further preferred developments of the method according to the invention can be derived directly from the above explanations of the conductor blank according to the present invention.
  • Trommelkommutatoren be prepared with a made of insulating molding carrier body and therein anchored conductor segments by first to a previously discussed inventive conductor blank - in a known manner - a carrier body is molded and the conductor segments initially interconnecting bridge parts after the Spraying the carrier body are removed. It is particularly advantageous if at the opposite end of the terminal projections arranged second anchor tabs terminate at the foot substantially flush with the end face of the carrier body.
  • drum commutator In view of the above-explained importance of deep anchoring of the conductor segments in the support body, other preferred developments of the drum commutator according to the invention are characterized in that the radial extent of at least a first anchor tab of each K-shaped anchor tab pair and / or the second anchor tabs at least 40% of Distance of the foot of the respective anchor tab from the shaft bore of the carrier body is.
  • the drawing shows in a (half) axial section using a a drum commutator made according to the invention of a conductor blank.
  • the drum commutator T shown in the drawing comprises a support body 1 formed of insulating molding material with a shaft bore 3 arranged concentrically with the axis 2 and a plurality of conductor segments 4 which are anchored in the support body.
  • the cylindrical outer surface 5 of the conductor segments 4 represents the brush running surface 6.
  • the individual conductor segments have emerged in a manner known per se from an annular conductor strip produced from a strip, in which the conductor segments are removed via bridge parts which are removed after spraying the carrier body 1, connected to each other.
  • each conductor segment 4 has a arranged on one end terminal projection 7, from which by subsequent bending a connection hook 8 for the rotor winding emerges, and inwardly directed to the axis 2, for anchoring the conductor segments in the carrier body 1 specific anchor tabs, namely two first anchor tabs 9a, 9b and two substantially frontally arranged second anchor tabs 10a, 10b.
  • the two first anchor tabs 9a, 9b which form a K-shaped anchor tab pair, are created by splitting material on the radially inner surface of the tab in the region of the conductor segments 4;
  • the two second anchor tabs 10a, 10b which are designed substantially C-shaped, generated by inwardly directed bending of edge arranged on the strip anchoring projections.
  • a second anchor tab 10a is provided on each conductor segment 4, in such a way that the foot portion 11 of the second anchor tab 10a is offset radially inwardly relative to the foot portion 12 of the terminal projection 7.
  • the free ends of the second anchor tabs 10a and 10b each have a smaller distance from the axis 2 of the conductor blank than the ends of the associated first anchor tabs 9a and 9b.
  • the arranged in the region of the terminal projections 7 end side second anchor tabs 10a terminate radially within the associated first anchor tab 9a; and arranged in the region of the opposite end face 13 second anchor tab 10b terminates radially within the associated first anchor tab 9b.
  • the at the terminal projections 7 opposite end face 13 of the conductor segment arranged second anchor tab 10b includes the foot side substantially flush with the end face 14 of the carrier body 1 from.
  • the first anchor tabs 9a and the second anchor tabs 10a adjacent to the terminal projections 7 end radially inward slightly further than the first and second anchor tabs 9b and 10b provided away from the terminal projections.
  • the radial distance of the free end of the terminal-side first anchor tab 9a from the axis 2 is 65%, and the radial distance of the free end of the associated second anchor tabs 10a from the axis 2 is 55% of the radial distance of the radially outer surface 5 of the conductor segment from the axis 2 ,
  • Each conductor segment 4 has between the mutually paired first anchor tabs 9a and 9b extending in the circumferential direction undercut groove 15 which is filled with molding material.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Braking Arrangements (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Baking, Grill, Roasting (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (19)

  1. Ebauche de conducteur fermée avec une forme annulaire pour un commutateur de tambour (T), doté de segments de conducteur (4), lesquels sont reliés les uns aux autres par des parties de pont, les segments de conducteur présentant des saillies de raccordement (7) disposées sur un côté avant et des pattes d'ancrage dirigées vers l'entrée et destinées à l'ancrage des segments de conducteur dans un corps support (1),
    caractérisé en ce que
    des premières pattes d'ancrage (9a, 9b) générées par fendage de matériau sur la surface radialement intérieure de la bande dans la zone des segments de conducteur (4) et formant des paires de pattes d'ancrage en forme de K et des secondes pattes d'ancrage (10a, 10b), générées par repliage dirigé vers l'entrée de saillies d'ancrage disposées côté bordure sur la bande, essentiellement côté avant et en forme de C sont prévues.
  2. Ebauche de conducteur selon la revendication 1,
    caractérisé en ce que
    la distance radiale des extrémités libres d'au moins respectivement une première patte d'ancrage (9a, 9b) à l'axe (2) représente au maximum 65 % de la distance radiale de la surface extérieure (5) radiale des segments de conducteur (4) à l'axe.
  3. Ebauche de conducteur selon la revendication 1 ou la revendication 2,
    caractérisé en ce que
    la distance radiale des extrémités libres des secondes pattes d'ancrage (10a, 10b) à l'axe (2) représentent au maximum 65 % de la distance radiale de la surface extérieure (5) radiale des segments de conducteur (4) à l'axe (2).
  4. Ebauche de conducteur selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    les extrémités libres des secondes pattes d'ancrage (10a, 10b) présentent une distance à l'axe (2) de l'ébauche de conducteur plus faible que les premières pattes d'ancrage (9a, 9b).
  5. Ebauche de conducteur selon la revendication 4,
    caractérisé en ce que
    les secondes pattes d'ancrage (10a, 10b) se terminent à chaque fois principalement radialement à l'intérieur d'une première patte d'ancrage (9a, 9b) voisine.
  6. Ebauche de conducteur selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    les extrémités libres des premières pattes d'ancrage (9a, 9b) présentent une distance à l'axe (2) de l'ébauche de conducteur plus faible que les secondes pattes d'ancrage (10a, 10b).
  7. Ebauche de conducteur selon la revendication 6,
    caractérisé en ce que
    les secondes pattes d'ancrage (10a, 10b) se terminent à chaque fois principalement radialement à l'extérieur d'une première patte d'ancrage (9a, 9b) voisine.
  8. Ebauche de conducteur selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    des secondes pattes d'ancrage (10a, 10b) sont prévues dans la zone des deux faces frontales.
  9. Ebauche de conducteur selon la revendication 8,
    caractérisé en ce que
    les premières et secondes pattes d'ancrage (9a, 10a) voisines des saillies de raccordement (7) se terminent radialement plus à l'intérieur que les premières et secondes pattes d'ancrage (9b, 10b) prévues à distance des saillies de raccordement.
  10. Ebauche de conducteur selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que
    des secondes pattes d'ancrage (10a, 10b) sont prévues uniquement dans la zone d'une face frontale.
  11. Ebauche de conducteur selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que
    des secondes pattes d'ancrage (10a) sont prévues sur la face avant présentant les saillies de raccordement (7), pattes dont les parties de base (11) sont décalées radialement vers l'intérieur par rapport aux parties de base (12) des saillies de raccordement.
  12. Ebauche de conducteur selon la revendication 11,
    caractérisé en ce que
    exactement une seconde patte d'ancrage (10a) disposée radialement à l'intérieur au-dessous de la saillie de raccordement respective est prévue sur chaque segment de conducteur (4) dans la zone de la face frontale présentant les saillies de raccordement (7).
  13. Ebauche de conducteur selon l'une quelconque des revendications 1 à 12,
    caractérisé en ce que
    les segments de conducteur (4) présentent entre les premières pattes d'ancrage (9a, 9b) associées par paires les unes aux autres une rainure (15) contre-dépouillée et s'étendant dans le sens périphérique.
  14. Procédé pour fabriquer une ébauche de conducteur fermée en forme d'anneau pour un commutateur de tambour (T), qui présente des segments de conducteur (4) reliés les uns aux autres par des parties de pont, comprenant les étapes suivantes :
    - mise à disposition d'une bande métallique plane et pré-profilée dotée de saillies de raccordement (7) disposées côté bordure et de saillies d'ancrage disposées également côté bordure ;
    - roulage de la bande ;
    - génération de premières pattes d'ancrage (9a, 9b), qui présentent à chaque fois une paire de pattes d'ancrage en forme de K par fendage de matériau sur la surface radialement intérieure de la bande dans la zone des segments de conducteur ;
    - repliage dirigé vers l'intérieur des saillies d'ancrage côté bordure pour former des secondes pattes d'ancrage (10a, 10b) en forme de C et principalement côté avant.
  15. Procédé selon la revendication 14,
    caractérisé en ce que
    la bande est roulée avant que les premières pattes d'ancrage (9a, 9b) soient formées.
  16. Commutateur de tambour (T) comprenant un corps support (1) fabriqué à base de matériau comprimé isolant et des segments de conducteur (4) ancrés à l'intérieur, lesquels sont fabriqués à partir d'une ébauche de conducteur selon la revendication 1 par enlèvement des parties de pont après l'injection du corps support.
  17. Commutateur de tambour selon la revendication 16,
    caractérisé en ce que
    des secondes pattes d'ancrage (10b) disposées sur le côté avant (13) faisant face aux saillies de raccordement (7) se terminent côté base essentiellement au niveau de la face frontale (14) du corps support (1).
  18. Commutateur de tambour selon la revendication 16 ou la revendication 17,
    caractérisé en ce que
    l'extension radiale d'au moins une première patte d'ancrage (9a, 9b) de chaque paire de pattes d'ancrage en forme de K représente au moins 40 % de la distance de la base de la patte d'ancrage concernée à l'alésage d'arbre (3) du corps support (1).
  19. Commutateur de tambour selon l'une quelconque des revendications 16 à 18,
    caractérisé en ce que
    l'extension radiale des secondes pattes d'ancrage (10a, 10b) représente au moins 40 % de la distance de la base de la patte d'ancrage concernée à l'alésage d'arbre (3) du corps support (1).
EP06753897A 2005-06-28 2006-05-26 Ebauche de conducteur pour un commutateur a tambour, procede de fabrication de ladite ebauche et commutateur a tambour ainsi obtenu Not-in-force EP1897183B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005030454A DE102005030454A1 (de) 2005-06-28 2005-06-28 Leiterrohling für einen Trommelkommutator, Verfahren zur Herstellung eines solchen sowie Trommelkommutator
PCT/EP2006/005035 WO2007000219A1 (fr) 2005-06-28 2006-05-26 Ebauche de conducteur pour un commutateur a tambour, procede de fabrication de ladite ebauche et commutateur a tambour ainsi obtenu

Publications (2)

Publication Number Publication Date
EP1897183A1 EP1897183A1 (fr) 2008-03-12
EP1897183B1 true EP1897183B1 (fr) 2010-04-21

Family

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EP06753897A Not-in-force EP1897183B1 (fr) 2005-06-28 2006-05-26 Ebauche de conducteur pour un commutateur a tambour, procede de fabrication de ladite ebauche et commutateur a tambour ainsi obtenu

Country Status (11)

Country Link
US (1) US20100133949A1 (fr)
EP (1) EP1897183B1 (fr)
JP (1) JP2008544467A (fr)
KR (1) KR20080026561A (fr)
CN (1) CN101213708B (fr)
AT (1) ATE465532T1 (fr)
BR (1) BRPI0612530A2 (fr)
DE (2) DE102005030454A1 (fr)
RU (1) RU2007145640A (fr)
TW (1) TW200707868A (fr)
WO (1) WO2007000219A1 (fr)

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CN110912352B (zh) * 2019-12-31 2025-01-10 湖北神电汽车电机有限公司 一种定子刷架反装专用工装及装配方法

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JP3813857B2 (ja) * 2001-03-13 2006-08-23 株式会社杉山製作所 円筒形整流子及びその製造方法
DE10233712B3 (de) * 2002-07-24 2004-02-12 Kolektor D.O.O. Trommelkommutator für eine elektrische Maschine
DE10244006A1 (de) * 2002-09-21 2004-04-22 Berghänel Elektrotechnik Kommutator für elektrische Maschinen mit zwei Haken je Lamelle
DE10306516A1 (de) * 2003-02-14 2004-09-16 Kolektor D.O.O. Kommutator für eine elektrische Maschine
DE102004052026B4 (de) * 2003-11-07 2015-08-27 Totankako Co., Ltd. Kollektor
CN2689534Y (zh) * 2004-01-19 2005-03-30 浙江长城换向器有限公司 换向器
US7009323B1 (en) * 2004-12-06 2006-03-07 Siemens Vdo Automotive Inc. Robust commutator bar anchoring configuration with dove-tailed features

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DE502006006799D1 (de) 2010-06-02
ATE465532T1 (de) 2010-05-15
RU2007145640A (ru) 2009-08-10
CN101213708A (zh) 2008-07-02
WO2007000219A1 (fr) 2007-01-04
CN101213708B (zh) 2010-12-08
BRPI0612530A2 (pt) 2010-11-23
HK1114247A1 (en) 2008-10-24
US20100133949A1 (en) 2010-06-03
KR20080026561A (ko) 2008-03-25
JP2008544467A (ja) 2008-12-04
EP1897183A1 (fr) 2008-03-12
DE102005030454A1 (de) 2007-01-04
TW200707868A (en) 2007-02-16

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