GB1308555A - Commutators for dynamo-electric machines - Google Patents

Commutators for dynamo-electric machines

Info

Publication number
GB1308555A
GB1308555A GB3231070A GB3231070A GB1308555A GB 1308555 A GB1308555 A GB 1308555A GB 3231070 A GB3231070 A GB 3231070A GB 3231070 A GB3231070 A GB 3231070A GB 1308555 A GB1308555 A GB 1308555A
Authority
GB
United Kingdom
Prior art keywords
ring
copper
blanks
commutators
dynamo
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.)
Expired
Application number
GB3231070A
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.)
Robert Bosch GmbH
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 GB1308555A publication Critical patent/GB1308555A/en
Expired legal-status Critical Current

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
    • H01R43/08—Manufacture of commutators in which segments are not separated until after assembly
    • 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

Landscapes

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

Abstract

1308555 Commutators for dynamo-electric machines ROBERT BOSCH GmbH 3 July 1970 [5 July 1969] 32310/70 Heading H2A [Also in Division B3] A method of making a commutator segment ring 22, comprises extruding a plurality of metal blanks 10, 11, one of which is of copper, to form a ring having an outer layer of copper and an inner layer having means for anchoring the ring to a hub of insulating material, the layers being jointed to each other along their contact surfaces during extrusion. The blanks are made from bars by cold extrusion and/or stamping or cut from tubes and are provided with mating conical surfaces 10a, 11a. The blanks are placed in a die 13 and extruded by an inner die 17, which forms axially extending grooves internally of the ring 22. The blank 10, which is of aluminium is formed with a collar 24 and a copper contact surface 25 is formed by the blank 11. The hub (27) is then inserted in the ring, Fig. 5 (not shown), which is sawn to form the individual commutator segments (29) and connecting lugs (30).
GB3231070A 1969-07-05 1970-07-03 Commutators for dynamo-electric machines Expired GB1308555A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1934213A DE1934213C3 (en) 1969-07-05 1969-07-05 Method of manufacturing a commutator

Publications (1)

Publication Number Publication Date
GB1308555A true GB1308555A (en) 1973-02-21

Family

ID=5739006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3231070A Expired GB1308555A (en) 1969-07-05 1970-07-03 Commutators for dynamo-electric machines

Country Status (5)

Country Link
US (1) US3664012A (en)
JP (1) JPS50486B1 (en)
DE (1) DE1934213C3 (en)
FR (1) FR2052882A5 (en)
GB (1) GB1308555A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002284A (en) * 1971-06-29 1977-01-11 Metall-Werk Merkur Gmbh Method of making a cold welded connection
GB1414129A (en) * 1971-12-14 1975-11-19 Alcan Res & Dev Forming pressure-welded joints
US3786559A (en) * 1972-05-22 1974-01-22 Hewlett Packard Co Cold diffusion welds in a microcircuit package assembly
IT1012681B (en) * 1973-05-30 1977-03-10 Berna Ag BIMETAL MULTIPLE CYLINDER PAR TICULARLY FOR EXTRUSION HEADS OF MACHINES FOR PROCESSING SYNTHETIC MATERIALS
US3949466A (en) * 1974-05-28 1976-04-13 Arthur D. Little Inc. Process for forming an aluminum electrical conducting wire junction end piece
JPS5231875U (en) * 1975-08-29 1977-03-05
JPS5231874U (en) * 1975-08-29 1977-03-05
JPS5231873U (en) * 1975-08-29 1977-03-05
NL167615C (en) * 1977-10-12 1982-01-18 Schelde Nv METHOD AND APPARATUS FOR PRESS-WELDING ONE OR MORE PIPES IN A PLATE OPERATION
JPS5645290A (en) * 1979-09-20 1981-04-24 Kawasaki Heavy Ind Ltd Manufacture of clad steel material
DE3201027C2 (en) * 1982-01-15 1986-11-27 Robert Bosch Gmbh, 7000 Stuttgart Method for manufacturing a commutator ring
DE3242702A1 (en) * 1982-11-19 1984-05-24 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR PRODUCING A COMMUTATOR SEGMENT RING
DE3242703A1 (en) * 1982-11-19 1984-05-24 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR PRODUCING A COMMUTATOR SEGMENT RING
US4756465A (en) * 1985-04-15 1988-07-12 Latviisky Gosudarstvenny Institut Method of cold welding
JPS63198557A (en) * 1987-02-12 1988-08-17 Mitsubishi Electric Corp Dc motor
FR2742008B1 (en) * 1995-12-05 1998-02-20 Rockwell Lvs METHOD FOR MANUFACTURING A COLLECTOR OF A ROTARY MACHINE AND MANIFOLD MANUFACTURED ACCORDING TO THIS METHOD
DE102008031588B4 (en) * 2008-07-03 2011-03-24 Lisa Dräxlmaier GmbH Contacting of light metal cables
DE102013207887A1 (en) * 2013-04-30 2014-10-30 Robert Bosch Gmbh Method for producing a collector for a commutation device
DE102013207884A1 (en) * 2013-04-30 2014-10-30 Robert Bosch Gmbh Method for producing a collector for a commutation device
CN105024503B (en) * 2014-04-21 2017-06-23 江苏龙城精锻有限公司 Hybrid excitation generator pawl pole hot forging cold-extruded manufacturing process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963774A (en) * 1956-09-17 1960-12-13 Dayton Prec Mfg Company Manufacture of commutators having molded cores
US3007234A (en) * 1958-05-31 1961-11-07 Fiat Spa Method of manufacturing commutators for dynamo-electric machines
FR1223885A (en) * 1959-01-19 1960-06-21 Fiat Spa Manifold for dynamo-electric machines and manufacturing process
NL120345C (en) * 1960-01-16 1900-01-01
US3407491A (en) * 1965-10-23 1968-10-29 Gen Motors Corp Molded commutator
DE1538954B2 (en) * 1966-03-30 1972-08-03 Nippondenso Co, Ltd , Kariya, Aichi (Japan) METHOD AND DEVICE FOR MANUFACTURING A COMMUTATOR FOR A SMALL ELECTRIC MACHINE
GB1188533A (en) * 1966-07-20 1970-04-15 Lucas Industries Ltd Manufacture of Face Commutators

Also Published As

Publication number Publication date
FR2052882A5 (en) 1971-04-09
JPS50486B1 (en) 1975-01-09
US3664012A (en) 1972-05-23
DE1934213C3 (en) 1980-07-10
DE1934213A1 (en) 1971-01-14
DE1934213B2 (en) 1979-10-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees