IN159686B - - Google Patents
Info
- Publication number
- IN159686B IN159686B IN1343/CAL/83A IN1343CA1983A IN159686B IN 159686 B IN159686 B IN 159686B IN 1343CA1983 A IN1343CA1983 A IN 1343CA1983A IN 159686 B IN159686 B IN 159686B
- Authority
- IN
- India
- Prior art keywords
- rotor
- recesses
- stator
- axis
- thickness
- Prior art date
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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Adornments (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Gyroscopes (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The stepping motor for electronic clocks according to the invention supplies a higher load torque with a lower power consumption at the same time, and makes it possible to use cheaper permanent-magnet materials, primarily ferrite, for the rotor. The pole pieces of the stator laminates 1a, 1b are designed to be non-concentric with respect to the rotor 2 and have diametrically opposite recesses 11b whose height corresponds either to the thickness of a stator laminate layer 1c, 1d, at least two laminate layers being provided, or whose height is less than the thickness of the stator laminates, and only a single laminate layer need be provided. The recesses 11d are bounded by two straight lines X' and X'', the straight line X'' running through the rotor axis dividing the air gap 4 into two halves and enclosing an angle beta , which is greater than 15 DEG , with the Z-Z' axis. The straight line X' encloses an angle alpha of less than 130 DEG with the Z-Z' axis. Stator laminates without and with both types of recesses may be of different thickness. The invention can be used in all types of crystal-controlled electronic clocks having an analogue time display. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS827875A CS232378B1 (en) | 1982-11-04 | 1982-11-04 | Stepping electric motor for electronic watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN159686B true IN159686B (en) | 1987-05-30 |
Family
ID=5428637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1343/CAL/83A IN159686B (en) | 1982-11-04 | 1983-10-31 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS59106869A (en) |
| CH (1) | CH656506GA3 (en) |
| CS (1) | CS232378B1 (en) |
| DD (1) | DD243412A3 (en) |
| DE (1) | DE3339807A1 (en) |
| HU (1) | HU191891B (en) |
| IN (1) | IN159686B (en) |
| PL (1) | PL244402A2 (en) |
| YU (1) | YU217983A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9201423U1 (en) * | 1992-02-03 | 1992-04-16 | Berliner TT-Bahnen, O-1055 Berlin | Actuator for models |
| JP3597467B2 (en) | 1998-06-11 | 2004-12-08 | シチズン時計株式会社 | 2-pole step motor for watches |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2263632B1 (en) * | 1974-03-07 | 1980-08-14 | Seiko Instr & Electronics | |
| DE2747209A1 (en) * | 1976-12-10 | 1978-06-15 | Niles Parts Co Ltd | STEPPER MOTOR FOR AN ELECTRONIC WATCH |
| US4162418A (en) * | 1976-12-14 | 1979-07-24 | Niles Parts Co., Ltd. | Stepping motor for electronic clock |
| JPS53107611A (en) * | 1977-03-01 | 1978-09-19 | Seiko Epson Corp | Step motor |
-
1982
- 1982-11-04 CS CS827875A patent/CS232378B1/en unknown
-
1983
- 1983-10-19 DD DD83255789A patent/DD243412A3/en not_active IP Right Cessation
- 1983-10-24 CH CH576183A patent/CH656506GA3/de unknown
- 1983-10-31 IN IN1343/CAL/83A patent/IN159686B/en unknown
- 1983-11-01 YU YU02179/83A patent/YU217983A/en unknown
- 1983-11-02 PL PL24440283A patent/PL244402A2/en unknown
- 1983-11-02 JP JP58205008A patent/JPS59106869A/en active Pending
- 1983-11-03 DE DE19833339807 patent/DE3339807A1/en not_active Withdrawn
- 1983-11-04 HU HU833807A patent/HU191891B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS232378B1 (en) | 1985-01-16 |
| HU191891B (en) | 1987-04-28 |
| YU217983A (en) | 1985-12-31 |
| DD243412A3 (en) | 1987-03-04 |
| DE3339807A1 (en) | 1984-05-10 |
| CS787582A1 (en) | 1984-06-18 |
| CH656506GA3 (en) | 1986-07-15 |
| JPS59106869A (en) | 1984-06-20 |
| PL244402A2 (en) | 1984-05-21 |
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