GB955986A - Improvements in or relating to electromagnetic step-by-step driving apparatus - Google Patents

Improvements in or relating to electromagnetic step-by-step driving apparatus

Info

Publication number
GB955986A
GB955986A GB3218260A GB3218260A GB955986A GB 955986 A GB955986 A GB 955986A GB 3218260 A GB3218260 A GB 3218260A GB 3218260 A GB3218260 A GB 3218260A GB 955986 A GB955986 A GB 955986A
Authority
GB
United Kingdom
Prior art keywords
rotor
pole
stator
pole members
carriers
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
GB3218260A
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.)
Solari & C SpA
Original Assignee
Solari & C SpA
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 Solari & C SpA filed Critical Solari & C SpA
Publication of GB955986A publication Critical patent/GB955986A/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
    • H02K37/24—Structural association with auxiliary mechanical devices
    • 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
    • H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
    • H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
    • H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K37/16—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures having horseshoe armature cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

955,986. Electric motors. SOLARI & C./UDINE S.p.A. Sept. 19, 1960 [Sept. 18, 1959], No. 32182/60. Heading H2A. An electromagnetic stepping motor comprises a rotor including a permanent magnet which is magnetized in the direction of the rotor axis and two axially spaced magnetisable discs which are arranged on opposite sides of the permanent magnet and have equal numbers of pole members uniformly spaced about the axis and extending towards one another to interdigitate and form at least six magnetic poles of alternate polarity, and a stator carrying an energizing winding and having two pole carriers each extending round a portion of the rotor and together surrounding almost the whole of the rotor, the pole carriers having a combined number of stator pole members one more than the number of pairs of rotor pole members, the air gap between the rotor and stator in the region between each two adjacent stator pole members of each pole caused decreasing in the required direction of rotation of the rotor to ensure that when the stator is energized by pulses of alternating polarity the rotation of the rotor always takes place in the same direction. In the embodiment described, which has a symmetrical ten-pole rotor, the variation of the air-gap is achieved by shaping the laminated stator pole carriers 3 and 3<SP>1</SP>, but the Specification states that the desired result could be achieved using asymmetrically shaped rotor pole shoes in conjunction with symmetrically profiled stator pole members.
GB3218260A 1959-09-18 1960-09-19 Improvements in or relating to electromagnetic step-by-step driving apparatus Expired GB955986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1553759 1959-09-18

Publications (1)

Publication Number Publication Date
GB955986A true GB955986A (en) 1964-04-22

Family

ID=11148078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3218260A Expired GB955986A (en) 1959-09-18 1960-09-19 Improvements in or relating to electromagnetic step-by-step driving apparatus

Country Status (2)

Country Link
CH (1) CH387173A (en)
GB (1) GB955986A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092809U (en) * 1974-02-25 1975-08-05
JPS50119226A (en) * 1974-03-07 1975-09-18
JPS5137215U (en) * 1974-08-24 1976-03-19
JPS5167308U (en) * 1974-11-25 1976-05-27
JPS5265808A (en) * 1975-11-27 1977-05-31 Tokyo Tokei Seizou Kk Step motor
JPS53111211U (en) * 1977-02-10 1978-09-05
JPS552384A (en) * 1979-04-20 1980-01-09 Seiko Instr & Electronics Ltd Small-sized step motor for electronic watch
JPH01194853A (en) * 1988-07-21 1989-08-04 Seiko Epson Corp Clock stepping motor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262648B (en) * 1963-01-29 1968-03-07 Siemens Ag Arrangement in a counter or display unit for the electromagnetically acting, step-by-step drive of the lowest value value carrier
DE2621262C2 (en) * 1976-05-13 1982-12-23 Vdo Adolf Schindling Ag, 6000 Frankfurt Single phase stepper motor
FR2616018B1 (en) * 1987-05-25 1993-12-24 Met DEVICE FOR REGULATING THE ROTATION SPEED OF AN ELECTRIC MOTOR

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092809U (en) * 1974-02-25 1975-08-05
JPS50119226A (en) * 1974-03-07 1975-09-18
JPS5760861B2 (en) * 1974-03-07 1982-12-21 Daini Seikosha Kk
JPS5137215U (en) * 1974-08-24 1976-03-19
JPS5167308U (en) * 1974-11-25 1976-05-27
JPS5265808A (en) * 1975-11-27 1977-05-31 Tokyo Tokei Seizou Kk Step motor
JPS53111211U (en) * 1977-02-10 1978-09-05
JPS552384A (en) * 1979-04-20 1980-01-09 Seiko Instr & Electronics Ltd Small-sized step motor for electronic watch
JPH01194853A (en) * 1988-07-21 1989-08-04 Seiko Epson Corp Clock stepping motor

Also Published As

Publication number Publication date
CH387173A (en) 1965-01-31

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