GB1334951A - Electric stepping motor - Google Patents

Electric stepping motor

Info

Publication number
GB1334951A
GB1334951A GB2083371A GB2083371A GB1334951A GB 1334951 A GB1334951 A GB 1334951A GB 2083371 A GB2083371 A GB 2083371A GB 2083371 A GB2083371 A GB 2083371A GB 1334951 A GB1334951 A GB 1334951A
Authority
GB
United Kingdom
Prior art keywords
teeth
rotor
tooth pitch
stepping motor
rotor tooth
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
GB2083371A
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB1334951A publication Critical patent/GB1334951A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/02—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type
    • H02K37/08—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type with rotors axially facing the stators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)

Abstract

1334951 Electric motors FUJITSU Ltd 19 April 1971 [7 Feb 1970 (2)] 20833/71 Heading H2A An electric stepping motor comprises a toothed rotor 3 rotatable in an axial air gap formed by a plurality of circumferentially spaced U-shaped stator elements, each stator element, e.g. 5 comprising axially spaced toothed members 6, 7, the pitch of the teeth on each member being the same as the rotor tooth pitch and the teeth of the different stator elements being mutually staggered with respect to the rotor teeth. For a three phase motor, Fig. 3b (not shown), the teeth of the different phases are mutually staggered by 1/3 of the rotor tooth pitch, and in general the teeth are staggered by 1/m times the rotor tooth pitch, where m is the number of phases employed. Each stator element carries windings 8, 9, not shown, and/or a single winding 18, Fig. 4 (not shown). Various constructions of the U-shaped elements are depicted in Figs. 7-11 (not shown).
GB2083371A 1970-02-07 1971-04-19 Electric stepping motor Expired GB1334951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1258870 1970-02-07

Publications (1)

Publication Number Publication Date
GB1334951A true GB1334951A (en) 1973-10-24

Family

ID=11809500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2083371A Expired GB1334951A (en) 1970-02-07 1971-04-19 Electric stepping motor

Country Status (1)

Country Link
GB (1) GB1334951A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201022A2 (en) * 1985-05-10 1986-11-12 Portescap Electric synchronous motor with a disc-shaped rotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201022A2 (en) * 1985-05-10 1986-11-12 Portescap Electric synchronous motor with a disc-shaped rotor
EP0201022A3 (en) * 1985-05-10 1988-05-04 Portescap Electric synchronous motor with a disc-shaped rotor

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Legal Events

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