CH680553GA3 - Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied - Google Patents
Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied Download PDFInfo
- Publication number
- CH680553GA3 CH680553GA3 CH185590A CH185590A CH680553GA3 CH 680553G A3 CH680553G A3 CH 680553GA3 CH 185590 A CH185590 A CH 185590A CH 185590 A CH185590 A CH 185590A CH 680553G A3 CH680553G A3 CH 680553GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- pole pieces
- clock
- current
- stepping motor
- good starting
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
- H02K37/125—Magnet axially facing armature
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The motor includes a rotor in the form of a disc turning in a first plane. A stator is formed by pole pieces (1, 2) arranged in a second plane. In addition there is a magnetic core (3) and a winding (4) formed around the core. The rotor has a number of poles which is equal to a sub-multiple of the number of steps to be made in one turn of the motor. The distribution of the normal rotor induction is such that there is a fundamental pattern with 2p poles and a clear 3rd order harmonic comprising 60 poles. ADVANTAGE - Motor has good starting characteristics.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH185590A CH680553GA3 (en) | 1990-06-01 | 1990-06-01 | Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH185590A CH680553GA3 (en) | 1990-06-01 | 1990-06-01 | Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied |
Publications (2)
Publication Number | Publication Date |
---|---|
CH680553GA3 true CH680553GA3 (en) | 1992-09-30 |
CH680553B5 CH680553B5 (en) | 1993-03-31 |
Family
ID=4220185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH185590A CH680553GA3 (en) | 1990-06-01 | 1990-06-01 | Multipole stepping motor for clock - includes disc rotor with number of pole pieces selected to give good starting when current is applied |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH680553GA3 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5498905A (en) * | 1978-01-20 | 1979-08-04 | Matsushita Electric Ind Co Ltd | Motor with frequency generator |
GB2062367A (en) * | 1979-04-12 | 1981-05-20 | Portescap | Stepping polyphased motor for a clockwork mechanism |
JPH01185156A (en) * | 1988-01-12 | 1989-07-24 | Canon Inc | Stepping motor |
EP0356396A1 (en) * | 1988-08-25 | 1990-02-28 | Scholer AG | Multipolar step motor |
-
1990
- 1990-06-01 CH CH185590A patent/CH680553GA3/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5498905A (en) * | 1978-01-20 | 1979-08-04 | Matsushita Electric Ind Co Ltd | Motor with frequency generator |
GB2062367A (en) * | 1979-04-12 | 1981-05-20 | Portescap | Stepping polyphased motor for a clockwork mechanism |
JPH01185156A (en) * | 1988-01-12 | 1989-07-24 | Canon Inc | Stepping motor |
EP0356396A1 (en) * | 1988-08-25 | 1990-02-28 | Scholer AG | Multipolar step motor |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 13, no. 470 (E-835)(3818) 24 octobre 1989, & JP-A-1 185156 (CANON) 24 juillet 1989, * |
PATENT ABSTRACTS OF JAPAN vol. 3, no. 121 (E-143)(99) 11 octobre 1979, & JP-A-54 98905 (MATSUSHITA) 04 août 1979, * |
Also Published As
Publication number | Publication date |
---|---|
CH680553B5 (en) | 1993-03-31 |
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