EP1769567B1 - Verfahren zur herstellung eines plankommutators sowie leiterrohling für einen plankommutator - Google Patents

Verfahren zur herstellung eines plankommutators sowie leiterrohling für einen plankommutator Download PDF

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Publication number
EP1769567B1
EP1769567B1 EP05770249A EP05770249A EP1769567B1 EP 1769567 B1 EP1769567 B1 EP 1769567B1 EP 05770249 A EP05770249 A EP 05770249A EP 05770249 A EP05770249 A EP 05770249A EP 1769567 B1 EP1769567 B1 EP 1769567B1
Authority
EP
European Patent Office
Prior art keywords
band
edge
section
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
EP05770249A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1769567A1 (de
Inventor
Jose Potocnik
Boris Kogej
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.)
Kolektor Group doo
Original Assignee
Kolektor Group doo
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 Kolektor Group doo filed Critical Kolektor Group doo
Priority to PL05770249T priority Critical patent/PL1769567T3/pl
Publication of EP1769567A1 publication Critical patent/EP1769567A1/de
Application granted granted Critical
Publication of EP1769567B1 publication Critical patent/EP1769567B1/de
Not-in-force 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
    • 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
    • H01R39/06—Commutators other than with external cylindrical contact surface, e.g. flat 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

  • Such a method is used for example for the production of the DE 19956844 A1 as well as the DE 19752626 A1 used known plan commutators.
  • a flat commutator with carbon tread is prepared by the generic method.
  • the conductor blank is thereby provided in each case by extrusion molding a disk punched out of a metal sheet (in particular copper sheet), the later contact tongues of the conductor segments emerging from the center of the disk, the later connection hooks from the edge portion of the disk and the later connection areas from the intermediate ring area the conductor segments.
  • Such prefabricated by extrusion molding forming conductor blanks are also used in the production of plan commutators with carbon surface by other methods, for example, the bridge parts are removed before spraying the carrier body, after previously the conductor blank with the carbon ring was assembled into a composite part (see. DE 4028420 A1 ), or the carbon ring disk is only applied to the already separated conductor segments, after previously the carrier body was molded onto the conductor blank and then the bridge parts were removed (see. WO 97/03486 A1 ).
  • the conductor blank as in the EP 935331 A1 also be made by round bending a punched out of copper sheet strip-shaped blank.
  • the punched-out blank has in this case in the region of its one edge the later connection hooks and in the region of the opposite edge the later contact tongues.
  • the flat commutator produced in accordance with the generic method according to the DE 19956844 A1 meets high requirements.
  • carbon surface plan commutators can be manufactured at a cost which is less than that produced by the prior art planar commutators having substantially the same characteristics.
  • two factors of influence come into play. Firstly, the degree of utilization of the starting material is higher than in the prior art in application of the method according to the invention; the accordingly reduced waste has a corresponding cost-reducing effect.
  • the method of the invention is without any F technically pre-forming, because a longitudinally pre-profiled strip starting material for the production of the conductor blank is used, because the wall thickness of the bridge parts is the same as the wall thickness of the terminal portions of the conductor segments and because the reeds to a To ensure optimal connection to the carbon segments and with the carrier body, profiled at their axial end faces solely by axial shear.
  • profiling of the contact tongues is on the pending German patent application 10359473.6 the assignee of the present patent application.
  • the invention provided according to the present invention on the first side of the band in the second edge portion third stage causes the contact tongues have a greater wall thickness at the end than at transition areas, by means of which they are connected to the terminal areas. This is advantageous with regard to a long-lasting connection of the carbon segments with the contact regions of the conductor segments; and the end-increased material thickness of the contact tongues allows to introduce a pronounced profiling there by means of the already described shear.
  • the bridge parts are completely removed by twisting in a single operation. This is made possible in that the connection hooks of the commutator blank are aligned in the axial direction, so that they do not hinder the twisting of the bridge parts. In the prior art, in contrast, due to the radially aligned from the beginning connecting hook a complete twisting the bridge parts in a single operation is not possible.
  • the invention allows several possibilities.
  • first the section of the metallic strip is cut to length from a supply, before subsequently the two edge sections of the strip are punched out to form the connection hooks in the first edge section and the contact tongues in the second edge section.
  • the section of the metallic strip is cut to length after the two edge sections of the strip have previously been punched out to form the connection hooks in the first edge section and the contact tongues in the second edge section.
  • the section of the metallic strip is cut to length and the two edge sections of the strip are punched out to form the connection hooks and the contact tongues.
  • the invention allows several possibilities.
  • the section of the band is first rolled to form a closed ring structure, before the corrugation is subsequently introduced into the section of the band;
  • this is supported radially in particular in the area of the bridge parts, while the conductor segments are displaced radially inwardly by corresponding radial punches until they rest against a correspondingly profiled inner tool.
  • the second variant of the method provides for the section of the strip to be rolled to form a closed ring structure, after the corrugation has previously been introduced into the section of the strip, in particular in a stamping press. And here is also considered, according to a third variant of the method, the section of the tape, after previously the contour has been punched, to roll in a single step to form a closed ring structure and at the same time introduce the corrugation.
  • introducing the corrugation is preferably carried out also a slight deformation of the areas between the waves, ie the first flat terminal portions of the conductor segments, so that they are slightly curved; this helps minimize the required machining finish of the commutator blank.
  • the contact tongues are bent in two steps inwards in the direction of the axis, wherein the second step is a calibration step.
  • the conductor blank is to be manufactured with particularly low tolerances in order to be able to be joined together with the carbon ring disk to form reliably electrically conductive connections.
  • this applies in the case of a positive engagement of the profiled contact tongues of the conductor segments in correspondingly profiled recordings of the carbon ring disc.
  • Anchor parts as they are to be arranged on the radial inner side of the conductor segments to be embedded in the molding material during injection of the carrier body and there to anchor the conductor segments are preferred in the context of the inventive method by axial splitting of the radial inner surfaces of the terminal regions of the conductor segments produced.
  • Two anchor parts are preferably split off from the respective connection region per conductor segment, specifically after the introduction of the corrugation.
  • the punching of the contact tongues extends only in the second edge portion of the band.
  • the second stage is circumferentially closed as a sealing surface for sealing the injection mold available.
  • the punch-out preferably extends from the first edge beyond the first step into the main portion of the band.
  • the corresponding punching of the connection hooks in the region of the main section is particularly preferably limited by conical edges against which the injection molding tool bears in a sealing manner.
  • Such a conductor blank can be seen with advantage not only in the method described above. Rather, it can be used with matching advantages even in modified processes with a modified sequence of manufacturing steps.
  • the surface of the conductor blank as a whole is silvered or tinned, at least in the regions of the contact tongues provided for contact with the carbon segments, which later are made of the carbon ring disk.
  • edge in the context of the present application is to be understood that it defines only in the case of a physical edge of the strip-shaped tape, that as a starting material a metallic strip sheet is used with such a width that not several punch out adjacent sections of tape. If, on the other hand, the latter is the case, the term "edge" indicates a fictitious limitation of the relevant section from the starting material used to produce the respective strip section.
  • the in Fig. 1 illustrated annular closed conductor blank 1 comprises eight evenly around the axis 2 arranged around conductor segments 3 and eight bridge parts 4, which each connect two adjacent conductor segments 3 together.
  • Each conductor segment has, on the one hand, a substantially axially aligned connection region 5 with a likewise axially aligned connection hook 6 and, on the other hand, a substantially radially inwardly aligned contact tongue 7.
  • the bridge parts 4 project in waveform radially outward beyond the terminal portions 5 of the conductor segments 3.
  • Their wall thickness D 1 corresponds to the wall thickness D 2 of the terminal portions 5 of the conductor segments 3. The waves rise so far that the maximum distance of its inner wall from the axis 2 is greater than the distance of the outer wall of the terminal portions 5 of the axis. 2
  • the conductor blank has emerged from a series of simple forming steps from a metallic longitudinal strip 8 with the in Fig. 2 cross section shown.
  • the band 8 has on its one, first side 9, which represents the later radial inner surface, a first step 10, which forms an increase in material thickness from the first edge 11 of the band 8 adjacent to this step.
  • the first stage 10 and the second stage 13 keep a distance A from one another.
  • the region of the band 8 lying between the first step 10 and the second step 13 forms its main section H.
  • the region of the band 8 lying between the first edge 11 and the first step 10 forms its first edge section 17 and that between the second edge 14 and the second stage 13 lying portion of the belt 8 forms the second edge portion 18th
  • the band 8 also has a third step 15 in the second edge section 18 on the first side 9. At the third stage 15, the material thickness increases in the direction of the second edge 14.
  • the conductor blank 1 For the preparation of the conductor blank 1 is first in a first step of a supply of longitudinally profiled metal strip ( Fig. 3 ) punched out a section 16. At the same time, the connection hooks 6 in the first edge section 17, the contact tongues 7 in the second edge section 18 and partly the main section H and the end regions are punched out with two mutually corresponding engagement sections 19 and 20 of a dovetail-shaped lock 21. Then, the band portion 16 is rolled to form a closed ring structure, wherein the shock-locking lock 21 is closed.
  • the corrugation is introduced into the annularly closed band section 16 by-in a corresponding tool-the conductor segments 3 are displaced radially inwards by corresponding radial punches, while a profiled inner tool supports the bridge parts 4 from radially inward.
  • the contact tongues 7 are bent inwards in the direction of the axis 2 in two steps.
  • the contact areas are then profiled by an axial shear in mutually corresponding upper and lower tools, before finally 3 armature parts 22 are produced by a gap step at the radial inner surfaces of the terminal portions 5 of the conductor segments.
  • the conductor blank 1 produced in this way is produced in a substantially known process (cf. DE 19956844 A1 ) for producing a flat commutator 23 with carbon brush surface 24 further processed.
  • a carbon ring disk is joined together with the conductor blank 1 to form a composite part to produce electrically conductive connections between the contact tongues 7 of the conductor segments 3 and the carbon ring disk.
  • the composite part is then placed in an open injection mold. The injection mold is closed.
  • a first part tool is located on a first sealing surface formed by the first step 10, the side faces 25 of the conical foot sections 26 of the connection hooks 6 and the associated end faces 27 of the bridge parts 4; and a second part tool abuts against a second sealing surface formed by the second step 13 and the associated end faces of the bridge parts 4.
  • the carrier body 28 is molded by injecting plasticized molding material into the injection mold. After the molding material has cured, the injection mold is opened and the resulting commutator blank from the Removed injection mold. Finally, the bridging parts 4 are removed by twisting, and the carbon ring disc is divided by cuts into individual carbon segments 29.
  • the strip 8 has on its second side 12 in the region of the main section H a fourth step 30 at which the material thickness in the direction of the first edge 11 points decreases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Dc Machiner (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Treating Waste Gases (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
EP05770249A 2004-07-16 2005-06-30 Verfahren zur herstellung eines plankommutators sowie leiterrohling für einen plankommutator Not-in-force EP1769567B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05770249T PL1769567T3 (pl) 2004-07-16 2005-06-30 Sposób wytwarzania komutatora płaskiego oraz półwyrób przewodzący dla komutatora płaskiego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004034434A DE102004034434B4 (de) 2004-07-16 2004-07-16 Verfahren zur Herstellung eines Plankommutators sowie Leiterrohling für einen Plankommutator
PCT/EP2005/007084 WO2006007952A1 (de) 2004-07-16 2005-06-30 Verfahren zur herstellung eines plankommutators sowie leiterrohling für einen plankommutator

Publications (2)

Publication Number Publication Date
EP1769567A1 EP1769567A1 (de) 2007-04-04
EP1769567B1 true EP1769567B1 (de) 2009-08-26

Family

ID=35004319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05770249A Not-in-force EP1769567B1 (de) 2004-07-16 2005-06-30 Verfahren zur herstellung eines plankommutators sowie leiterrohling für einen plankommutator

Country Status (14)

Country Link
US (1) US20070294877A1 (pt)
EP (1) EP1769567B1 (pt)
JP (1) JP4677449B2 (pt)
KR (1) KR20070029251A (pt)
CN (1) CN100544136C (pt)
AT (1) ATE441228T1 (pt)
BR (1) BRPI0513432A (pt)
DE (2) DE102004034434B4 (pt)
HK (1) HK1100591A1 (pt)
MX (1) MX2007000596A (pt)
PL (1) PL1769567T3 (pt)
RU (1) RU2361339C2 (pt)
UA (1) UA90859C2 (pt)
WO (1) WO2006007952A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101924315B (zh) * 2009-06-16 2014-09-03 德昌电机(深圳)有限公司 换向器及其制造方法
CN112775293A (zh) * 2020-12-31 2021-05-11 巴博斯电子科技(苏州)有限公司 具有缝隙宽厚比小于1的产品的冲压工艺
CN112993712B (zh) * 2021-02-23 2023-02-28 深圳市凯中精密技术股份有限公司 一种换向器铜壳的制造方法、换向器铜壳及换向器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0935331A1 (en) * 1997-08-21 1999-08-11 Aisan Kogyo Kabushiki Kaisha Commutateur of improved segment joinability

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB783210A (en) * 1955-05-16 1957-09-18 Lucas Industries Ltd Commutators for dynamo-electric machines or other electrical apparatus
DE2034502A1 (de) * 1970-07-11 1972-01-27 Bosch Gmbh Robert Kommutator fur elektrische Maschinen
JPS55157887A (en) * 1980-02-21 1980-12-08 Sugiyama Seisakusho Kk Method of manufacturing flat commutator
JPH0279751A (ja) * 1988-09-16 1990-03-20 Sugiyama Seisakusho:Kk 平型整流子およびその製造方法
DE4028420A1 (de) * 1990-09-07 1992-03-12 Kautt & Bux Kg Plankommutator und verfahren zu seiner herstellung
DE19525584A1 (de) * 1995-07-13 1997-01-16 Kautt & Bux Commutator Gmbh Verfahren zur Herstellung eines Plankommutators
US5925962A (en) * 1995-12-19 1999-07-20 Walbro Corporation Electric motor commutator
US6114791A (en) * 1996-11-29 2000-09-05 Denso Corporation Commutator for motor using amorphous carbon and fuel pump unit using the same
JPH10174375A (ja) * 1996-12-09 1998-06-26 Denso Corp 整流子およびその製造方法
DE19956844A1 (de) * 1999-11-26 2001-06-13 Kolektor D O O Plankommutator, Verfahren zu seiner Herstellung sowie Leiterrohling und Kohlenstoffscheibe zur Verwendung bei seiner Herstellung
MXPA05006707A (es) * 2000-05-31 2005-09-08 Kolektor Group Doo Conmutador plano.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0935331A1 (en) * 1997-08-21 1999-08-11 Aisan Kogyo Kabushiki Kaisha Commutateur of improved segment joinability

Also Published As

Publication number Publication date
RU2361339C2 (ru) 2009-07-10
EP1769567A1 (de) 2007-04-04
CN100544136C (zh) 2009-09-23
KR20070029251A (ko) 2007-03-13
DE502005007993D1 (de) 2009-10-08
US20070294877A1 (en) 2007-12-27
RU2006146872A (ru) 2008-08-27
CN1985417A (zh) 2007-06-20
DE102004034434B4 (de) 2006-08-03
MX2007000596A (es) 2007-03-30
HK1100591A1 (en) 2007-09-21
DE102004034434A1 (de) 2006-02-16
UA90859C2 (ru) 2010-06-10
JP2008507246A (ja) 2008-03-06
PL1769567T3 (pl) 2010-01-29
ATE441228T1 (de) 2009-09-15
JP4677449B2 (ja) 2011-04-27
BRPI0513432A (pt) 2008-05-06
WO2006007952A1 (de) 2006-01-26

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