CA2070658A1 - Electrical commutator and method for making same - Google Patents

Electrical commutator and method for making same

Info

Publication number
CA2070658A1
CA2070658A1 CA2070658A CA2070658A CA2070658A1 CA 2070658 A1 CA2070658 A1 CA 2070658A1 CA 2070658 A CA2070658 A CA 2070658A CA 2070658 A CA2070658 A CA 2070658A CA 2070658 A1 CA2070658 A1 CA 2070658A1
Authority
CA
Canada
Prior art keywords
commutator
rings
array
commutator segments
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.)
Granted
Application number
CA2070658A
Other languages
French (fr)
Other versions
CA2070658C (en
Inventor
David I. Elow
Dale Langdon
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2070658A1 publication Critical patent/CA2070658A1/en
Application granted granted Critical
Publication of CA2070658C publication Critical patent/CA2070658C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/04—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
    • H01R39/08—Slip-rings
    • 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
    • H01R39/14—Fastenings of commutators or slip-rings to shafts

Landscapes

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

Abstract

A commutator (10) for a motor is disclosed which includes a plurality of commutator segments (12) arranged in a cylindric array (14) such that the array has a cylindrical outer periphery (20) and two axial ends. An annular recess (26, 28) is formed adja-cent each end (22, 24) of the array so that a portion of each commutator segment (12) forms a part of the radially inner wall of each recess. Two or more rings (34, 36) constructed of an insulating material are provided and one or more rings are press fit into each recess so that the rings (34, 36) exert a radially inward force on the commutator segment (12). The anchoring portions of the commutator segments (12) are then encapsulated with a settable and electrically insulating material (40), such as phenolic. Upon hardening and curing, the phenolic secures the commutator segments (12) together. At the same time, the radially inward force exerted by the rings (34, 36) on the commutator segments (12) serves to stabilize the commutator segments (12) against movement relative to each other during high speed rotation of the commutator (10). A method for manufacturing the commutator is also dis-closed.
CA002070658A 1989-12-05 1990-12-05 Electrical commutator and method for making same Expired - Fee Related CA2070658C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44609089A 1989-12-05 1989-12-05
US446,090 1989-12-05

Publications (2)

Publication Number Publication Date
CA2070658A1 true CA2070658A1 (en) 1991-06-06
CA2070658C CA2070658C (en) 1996-06-04

Family

ID=23771285

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002070658A Expired - Fee Related CA2070658C (en) 1989-12-05 1990-12-05 Electrical commutator and method for making same

Country Status (6)

Country Link
EP (1) EP0504294A4 (en)
JP (1) JPH05502326A (en)
KR (1) KR920704383A (en)
CA (1) CA2070658C (en)
FI (1) FI922600A7 (en)
WO (1) WO1991008601A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19956512A1 (en) * 1999-11-25 2001-06-21 Bosch Gmbh Robert Commutator for an electric rotary machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671865A (en) * 1951-04-17 1954-03-09 Nippert Electric Products Comp Electrical collector ring assembly
DE1056256B (en) * 1956-03-26 1959-04-30 Bisterfeld & Stolting Device for the manufacture of collectors for electrical machines
DE1275193B (en) * 1963-10-15 1968-08-14 Siemens Ag Process for manufacturing a commutator for electrical machines
FR1451412A (en) * 1965-07-08 1966-01-07 Advanced training in rotating electrical appliance collectors
JPS58139656A (en) * 1982-02-12 1983-08-19 Mitsubishi Electric Corp Manufacture of commutator
DE3714098A1 (en) * 1987-04-28 1988-11-10 Kautt & Bux Kg COMMUTATOR FOR MACHINES SMALL TO MEDIUM SIZE AND METHOD FOR THE PRODUCTION THEREOF

Also Published As

Publication number Publication date
EP0504294A1 (en) 1992-09-23
JPH05502326A (en) 1993-04-22
CA2070658C (en) 1996-06-04
WO1991008601A1 (en) 1991-06-13
FI922600L (en) 1992-06-05
FI922600A0 (en) 1992-06-05
EP0504294A4 (en) 1993-06-30
KR920704383A (en) 1992-12-19
FI922600A7 (en) 1992-12-31

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed