WO2006013452A8 - Commutator and method of commutating current in a rotating electrical machine - Google Patents

Commutator and method of commutating current in a rotating electrical machine

Info

Publication number
WO2006013452A8
WO2006013452A8 PCT/IB2005/002278 IB2005002278W WO2006013452A8 WO 2006013452 A8 WO2006013452 A8 WO 2006013452A8 IB 2005002278 W IB2005002278 W IB 2005002278W WO 2006013452 A8 WO2006013452 A8 WO 2006013452A8
Authority
WO
WIPO (PCT)
Prior art keywords
commutator
electrical machine
diode
rotating electrical
segments
Prior art date
Application number
PCT/IB2005/002278
Other languages
French (fr)
Other versions
WO2006013452A2 (en
WO2006013452A3 (en
Inventor
Thomas Mahon Shaw
Tony Muldowney-Colston
Jonathan James Bremner
David John Tompkins
Sharkh Suleiman Abu
Original Assignee
Dolphin Electric Holdings Inc
Flint Michael John
Thomas Mahon Shaw
Tony Muldowney-Colston
Jonathan James Bremner
David John Tompkins
Sharkh Suleiman Abu
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
Priority claimed from GB0417188A external-priority patent/GB0417188D0/en
Priority claimed from GB0427645A external-priority patent/GB0427645D0/en
Application filed by Dolphin Electric Holdings Inc, Flint Michael John, Thomas Mahon Shaw, Tony Muldowney-Colston, Jonathan James Bremner, David John Tompkins, Sharkh Suleiman Abu filed Critical Dolphin Electric Holdings Inc
Priority to JP2007524417A priority Critical patent/JP2008508847A/en
Priority to US11/573,130 priority patent/US20080136288A1/en
Priority to BRPI0514066-8A priority patent/BRPI0514066A/en
Priority to EP05780472A priority patent/EP1794868A4/en
Publication of WO2006013452A2 publication Critical patent/WO2006013452A2/en
Publication of WO2006013452A3 publication Critical patent/WO2006013452A3/en
Publication of WO2006013452A8 publication Critical patent/WO2006013452A8/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/10—Arrangements of brushes or commutators specially adapted for improving commutation
    • H02K13/105—Spark suppressors associated with the commutator

Abstract

A commutator for rotation with or by the shaft of a electrical machine has first and second electrically conductive commutator segments (7,8) provided on a base (1) for electrical engagement with brushes (19,20,21) connected to windings, first and second freewheeling segments (9,10) electrically isolated from and interposed between the commutator segments (fig 3), a first diode (23) connected between the first commutator segment and the first freewheeling diode, a second diode (24) between the second commutator segment and the second freewheeling diode, the diodes allow one directional Current to suppress commutation sparking.
PCT/IB2005/002278 2004-08-02 2005-08-02 Commutator and method of commutating current in a rotating electrical machine WO2006013452A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2007524417A JP2008508847A (en) 2004-08-02 2005-08-02 Commutator and method for rectifying current in a rotating electrical machine
US11/573,130 US20080136288A1 (en) 2004-08-02 2005-08-02 Commutator and Method of Commutating Current in a Rotating Electrical Machine
BRPI0514066-8A BRPI0514066A (en) 2004-08-02 2005-08-02 commutator and method of current switching in an electric rotating machine
EP05780472A EP1794868A4 (en) 2004-08-02 2005-08-02 Commutator and method of commutating current in a rotating electrical machine

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB0417188.0 2004-08-02
GB0417188A GB0417188D0 (en) 2004-08-02 2004-08-02 Commutator and method of commuting current in a rotating electrical machine
GB0427645A GB0427645D0 (en) 2004-12-17 2004-12-17 Commutators
GB0427645.7 2004-12-17
GB0502657.0 2005-02-10
GB0502657A GB0502657D0 (en) 2004-08-02 2005-02-10 Commutator and method of commutating current in a rotating electrical machine
GB0513588.4 2005-07-04
GB0513588A GB0513588D0 (en) 2004-08-02 2005-07-04 Commutator & method of commutating current in a rotating electrical machine

Publications (3)

Publication Number Publication Date
WO2006013452A2 WO2006013452A2 (en) 2006-02-09
WO2006013452A3 WO2006013452A3 (en) 2006-05-11
WO2006013452A8 true WO2006013452A8 (en) 2007-04-19

Family

ID=35787491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/002278 WO2006013452A2 (en) 2004-08-02 2005-08-02 Commutator and method of commutating current in a rotating electrical machine

Country Status (2)

Country Link
EP (1) EP1794868A4 (en)
WO (1) WO2006013452A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0718260D0 (en) * 2007-09-19 2007-10-31 Shaw Thomas M Electric motor-generators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638960A (en) * 1979-08-31 1981-04-14 Matsushita Electric Works Ltd Commutator for dc motor
US4598241A (en) * 1982-07-12 1986-07-01 Mykola Sereda Rectifier commutation in electrical machines
US5905319A (en) * 1992-01-31 1999-05-18 Mclendon; Martin R. Self inductance bypass motor
FR2704369B1 (en) * 1993-04-20 1995-06-02 Auxilec Self-synchronous motor with switching ring.
WO1997031420A1 (en) * 1996-02-26 1997-08-28 Osami Matsumoto Spark-free commutator
CN1306688C (en) * 2004-01-19 2007-03-21 金羚电器有限公司 DC motor with commutator and its driven washing machine

Also Published As

Publication number Publication date
WO2006013452A2 (en) 2006-02-09
EP1794868A4 (en) 2008-11-05
WO2006013452A3 (en) 2006-05-11
EP1794868A2 (en) 2007-06-13

Similar Documents

Publication Publication Date Title
US11837934B2 (en) Stator assembly for a brushless motor in a power tool
MXPA03002267A (en) Current rectifier assembly for rotating electrical machines, in particular motor vehicle alternator.
KR20070047342A (en) Motor
WO2007026308A3 (en) Brushless motor commutation and control
WO2004091075A3 (en) Synchronous electric motor comprising a stator and at least one rotor and associated control device
HK1094486A1 (en) Commutator for an electric machine
CN103166413B (en) Built-in type permanent magnet direct current motor
AU2003224065A1 (en) Rotating connection
US6724121B2 (en) Flat mechanical electric commutators
WO2006013452A3 (en) Commutator and method of commutating current in a rotating electrical machine
CN112542907A (en) Electric machine
US20030209951A1 (en) Commutating rotary switch
GB2163299B (en) Electrical machine
EP1333557A3 (en) Electric rotary machine with salient pole armature
US7275978B2 (en) Hand power tool which receives its operating voltage from a power supply unit
CN101076935A (en) Current reversing method for reversing apparatus and rotating electrical machine
US20070236096A1 (en) Carbon brush holder device
US20050174005A1 (en) Interference-suppressed universal motor
WO2009037455A3 (en) Commutators
BRPI0514066A (en) commutator and method of current switching in an electric rotating machine
CN103944028A (en) Rotary carbon brush holder
CN101951078B (en) Brush structure of motor with even number of commutators
RU2302070C2 (en) Commutatorless direct-current motor
CN212063651U (en) Commodity circulation letter sorting line motor
US20230353065A1 (en) Mechanical device for converting direct current into alternating current

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 2007524417

Country of ref document: JP

NENP Non-entry into the national phase in:

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2005780472

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 200580033451.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWP Wipo information: published in national office

Ref document number: 2005780472

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 11573130

Country of ref document: US

ENP Entry into the national phase in:

Ref document number: PI0514066

Country of ref document: BR