GB1451825A - Stepping motor - Google Patents
Stepping motorInfo
- Publication number
- GB1451825A GB1451825A GB1328674A GB1328674A GB1451825A GB 1451825 A GB1451825 A GB 1451825A GB 1328674 A GB1328674 A GB 1328674A GB 1328674 A GB1328674 A GB 1328674A GB 1451825 A GB1451825 A GB 1451825A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- polepieces
- degrees
- air gap
- polepiece
- 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
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
- H02K37/10—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
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C13/00—Driving mechanisms for clocks by master-clocks
- G04C13/08—Slave-clocks actuated intermittently
- G04C13/10—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms
- G04C13/11—Slave-clocks actuated intermittently by electromechanical step advancing mechanisms with rotating armature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromechanical Clocks (AREA)
Abstract
1451825 Electric motors DAINI SEIKOSHA KK 26 March 1974 [11 April 1973] 13286/74 Heading H2A A stepping motor comprises a cylindrical permanent magnet rotor 1 of diameter less than 2À5 mm., and two stator polepieces 2, 3, each having a part-cylindrical pole face, the two polepieces together encompassing at least 300 degrees of the circumference of the rotor, at least one of the part-cylindrical pole faces being eccentric with respect to the rotor axis so that the air gap is non-uniform in the circumferential direction. As shown the polepiece 2 is adjustable by means of screw 7 to vary the air gap and so give the rotor a preferred direction of rotation. The thickness of the stator polepieces in the axial direction is between 1 and 1À5 times the rotor axial thickness. The air gap 9 under the non-adjustable polepiece 3 is between 1 and 1À5 times the length of space 8 between the ends of the polepieces. The angle a shown is between 10 and 45 degrees and is preferably substantially 25 degrees.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4035273A JPS49127115A (en) | 1973-04-11 | 1973-04-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1451825A true GB1451825A (en) | 1976-10-06 |
Family
ID=12578226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1328674A Expired GB1451825A (en) | 1973-04-11 | 1974-03-26 | Stepping motor |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS49127115A (en) |
AR (1) | AR198456A1 (en) |
BR (1) | BR7402812D0 (en) |
CH (1) | CH512474A4 (en) |
DD (1) | DD110989A1 (en) |
DE (1) | DE2410745A1 (en) |
FR (1) | FR2225869A1 (en) |
GB (1) | GB1451825A (en) |
IT (1) | IT1003724B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111446835A (en) * | 2019-01-11 | 2020-07-24 | 精工电子有限公司 | Stator, stepping motor, movement for timepiece, and method of manufacturing stator |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5814144B2 (en) * | 1975-09-23 | 1983-03-17 | 株式会社精工舎 | Kogata motor |
JPS5349215A (en) * | 1976-10-15 | 1978-05-04 | Matsushita Electric Works Ltd | Step motor |
DE3107283C2 (en) * | 1981-02-26 | 1984-10-11 | Naučno-issledovatel'skij institut časovoj promyšlennosti, Moskau/Moskva | Single-phase miniature stepper motor |
DE9201423U1 (en) * | 1992-02-03 | 1992-04-16 | Berliner TT-Bahnen, O-1055 Berlin | Actuator for models |
-
1973
- 1973-04-11 JP JP4035273A patent/JPS49127115A/ja active Pending
-
1974
- 1974-02-14 AR AR25236574A patent/AR198456A1/en active
- 1974-03-06 DE DE19742410745 patent/DE2410745A1/en active Pending
- 1974-03-07 IT IT4906974A patent/IT1003724B/en active
- 1974-03-26 GB GB1328674A patent/GB1451825A/en not_active Expired
- 1974-03-27 FR FR7410530A patent/FR2225869A1/fr not_active Withdrawn
- 1974-04-03 DD DD17766574A patent/DD110989A1/xx unknown
- 1974-04-09 BR BR281274A patent/BR7402812D0/en unknown
- 1974-04-11 CH CH512474D patent/CH512474A4/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111446835A (en) * | 2019-01-11 | 2020-07-24 | 精工电子有限公司 | Stator, stepping motor, movement for timepiece, and method of manufacturing stator |
Also Published As
Publication number | Publication date |
---|---|
DD110989A1 (en) | 1975-01-12 |
FR2225869A1 (en) | 1974-11-08 |
BR7402812D0 (en) | 1974-12-03 |
IT1003724B (en) | 1976-06-10 |
DE2410745A1 (en) | 1974-10-24 |
JPS49127115A (en) | 1974-12-05 |
AR198456A1 (en) | 1974-06-21 |
CH512474A4 (en) | 1977-07-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19940325 |