GB2010022A - Discoidal rotor for axial field electrical machine - Google Patents

Discoidal rotor for axial field electrical machine

Info

Publication number
GB2010022A
GB2010022A GB7843863A GB7843863A GB2010022A GB 2010022 A GB2010022 A GB 2010022A GB 7843863 A GB7843863 A GB 7843863A GB 7843863 A GB7843863 A GB 7843863A GB 2010022 A GB2010022 A GB 2010022A
Authority
GB
United Kingdom
Prior art keywords
rotor
magnetic material
ring
electrical machine
axial field
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
GB7843863A
Other versions
GB2010022B (en
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.)
ABB Norden Holding AB
Original Assignee
ASEA 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 ASEA AB filed Critical ASEA AB
Publication of GB2010022A publication Critical patent/GB2010022A/en
Application granted granted Critical
Publication of GB2010022B publication Critical patent/GB2010022B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2793—Rotors axially facing stators
    • H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2796—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets where both axial sides of the rotor face a stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

The rotor 1 has a plurality of equiangularly spaced holes, a ring 10 of permanent-magnetic material being provided in each hole, with each ring surrounding an axially disposed pole body 11 of soft-magnetic material. The rings are magnetised so that the inwardly and outwardly facing surfaces of each ring have opposite polarities. The pole bodies 11 form a plurality of rotor poles of the same polarity, the other poles of the rotor being formed by portions of the rotor disposed intermediate said holes. The machine includes at least one disc-formed stator body of soft- magnetic material, each stator body supporting a power winding which is arranged in a plurality of radially disposed winding slots facing the rotor. <IMAGE>
GB7843863A 1977-11-10 1978-11-09 Axial field electrical machine Expired GB2010022B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7712691A SE408841B (en) 1977-11-10 1977-11-10 AXIAL FIELD MACHINE WITH PERMANENT MAGNET TROTOR

Publications (2)

Publication Number Publication Date
GB2010022A true GB2010022A (en) 1979-06-20
GB2010022B GB2010022B (en) 1982-05-26

Family

ID=20332824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7843863A Expired GB2010022B (en) 1977-11-10 1978-11-09 Axial field electrical machine

Country Status (4)

Country Link
DE (1) DE2847203A1 (en)
FR (1) FR2408939A1 (en)
GB (1) GB2010022B (en)
SE (1) SE408841B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026584A1 (en) * 1979-09-05 1981-04-08 Robert Williams Needham Improvements in and relating to turbo electric generators
EP0815633A1 (en) * 1995-03-21 1998-01-07 Zond Energy Systems, Inc. Doubly-salient permanent-magnet machine
CN110098671A (en) * 2018-01-29 2019-08-06 何玉煌 Symmetrical brushless plate d.c. motor

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462805A1 (en) * 1979-08-03 1981-02-13 Cem Comp Electro Mec Field magnet for axial air-gap DC machine - has solid or laminated ring contg. polar masses each completely surrounded by ferrite magnet
FR2563544B1 (en) * 1984-04-26 1986-11-14 Electro Mec Nivernais WASHING MACHINE OR ROTARY DRYER OF THE DRUM DRIVE MOTOR DIRECTLY MOUNTED ON THE LAST SHAFT
JPS6158460A (en) * 1984-08-27 1986-03-25 Hitachi Ltd Torque motor
US4857786A (en) * 1987-04-06 1989-08-15 Hitachi, Ltd. Structure of stepping motor and method of driving the stepping motor
US5258735A (en) * 1991-10-28 1993-11-02 Allwine Jr Elmer C Multi-pole composite magnet used in a magnetic encoder
US5369323A (en) * 1991-10-28 1994-11-29 Slonix Engineering Composite magnet stepper motor
US5440185A (en) * 1991-10-28 1995-08-08 Allwine, Jr.; Elmer C. Composite magnet brushless DC motor
US5218251A (en) * 1991-10-28 1993-06-08 Allwine Jr Elmer C Composite magnet stepper motor
WO2023151750A1 (en) * 2022-02-14 2023-08-17 Schaeffler Technologies AG & Co. KG Electric axle drivetrain

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126493A (en) * 1964-03-24 Permanent magnet motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026584A1 (en) * 1979-09-05 1981-04-08 Robert Williams Needham Improvements in and relating to turbo electric generators
EP0815633A1 (en) * 1995-03-21 1998-01-07 Zond Energy Systems, Inc. Doubly-salient permanent-magnet machine
EP0815633A4 (en) * 1995-03-21 1998-07-08 Zond Energy Systems Inc Doubly-salient permanent-magnet machine
CN110098671A (en) * 2018-01-29 2019-08-06 何玉煌 Symmetrical brushless plate d.c. motor

Also Published As

Publication number Publication date
SE408841B (en) 1979-07-09
SE7712691L (en) 1979-05-11
DE2847203A1 (en) 1979-05-17
FR2408939B1 (en) 1983-02-04
GB2010022B (en) 1982-05-26
FR2408939A1 (en) 1979-06-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee