GB933442A - Improvements in dynamo electric machines - Google Patents

Improvements in dynamo electric machines

Info

Publication number
GB933442A
GB933442A GB4217159A GB4217159A GB933442A GB 933442 A GB933442 A GB 933442A GB 4217159 A GB4217159 A GB 4217159A GB 4217159 A GB4217159 A GB 4217159A GB 933442 A GB933442 A GB 933442A
Authority
GB
United Kingdom
Prior art keywords
spring
commutator
brush
core
metal
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
GB4217159A
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.)
Electrolux AB
Original Assignee
Electrolux AB
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 Electrolux AB filed Critical Electrolux AB
Publication of GB933442A publication Critical patent/GB933442A/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
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/38—Brush holders
    • H01R39/41—Brush holders cartridge type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
    • H02K11/026—Suppressors associated with brushes, brush holders or their supports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

933,442. Brush holders for dynamo-electric machines; protective arrangements; inductors. ELECTROLUX A.B. Dec. 11, 1959 [Dec. 22, 1958], No. 42171/59. Classes 35, 38 (2) and 38 (4). The brush spring of a commutator is electrically connected in the commutator circuit so that it performs the dual function of urging the brush into engagement with the commutator 4 and suppressing radio-interference from the commutator, a ferromagnetic core being associated with the spring to increase its impedance. As shown, a carbon brush 5 is pressed against commutator 4 by a helical spring 11 which surrounds a ferrite core 12. The end of the spring remote from the commutator may be tapered to retain the core. This end of the spring bears against a metal insert 13 in an insulating cap which is screwed on a sleeve 6 which may be metal or insulating material lined with metal. In an alternative arrangement the core surrounds the brush spring which may be a leaf spring.
GB4217159A 1958-12-22 1959-12-11 Improvements in dynamo electric machines Expired GB933442A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1193258 1958-12-22

Publications (1)

Publication Number Publication Date
GB933442A true GB933442A (en) 1963-08-08

Family

ID=20294866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4217159A Expired GB933442A (en) 1958-12-22 1959-12-11 Improvements in dynamo electric machines

Country Status (4)

Country Link
CH (1) CH378381A (en)
DE (1) DE1122623B (en)
GB (1) GB933442A (en)
NL (2) NL120194C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713834A1 (en) * 1993-12-14 1995-06-16 Lorraine Carbone Brush and brush holder for an electric motor with built-in suppression function and method of manufacture.
FR2833423A1 (en) * 2001-12-10 2003-06-13 Gerard Leblanc Electric motor with commutator has helicoidal brush springs one of which is used with iron core to constitute an inductance in series with the motor and thus reduce electromagnetic disturbances

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE596604C (en) * 1934-05-08 Inventia Patent Verwert Ges Interference protection for electric motors with concealed brushes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713834A1 (en) * 1993-12-14 1995-06-16 Lorraine Carbone Brush and brush holder for an electric motor with built-in suppression function and method of manufacture.
EP0658961A1 (en) * 1993-12-14 1995-06-21 Le Carbone Lorraine Brush assembly and brush holder for electrical motor with build-in noise suppression and process for making same
FR2833423A1 (en) * 2001-12-10 2003-06-13 Gerard Leblanc Electric motor with commutator has helicoidal brush springs one of which is used with iron core to constitute an inductance in series with the motor and thus reduce electromagnetic disturbances
EP1324469A1 (en) * 2001-12-10 2003-07-02 Gérard Leblanc Electric commutator motor featuring an electromagnetic interference reduction device

Also Published As

Publication number Publication date
NL120194C (en)
CH378381A (en) 1964-06-15
DE1122623B (en) 1962-01-25
NL246318A (en)

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