JPH02114380U - - Google Patents
Info
- Publication number
- JPH02114380U JPH02114380U JP2296189U JP2296189U JPH02114380U JP H02114380 U JPH02114380 U JP H02114380U JP 2296189 U JP2296189 U JP 2296189U JP 2296189 U JP2296189 U JP 2296189U JP H02114380 U JPH02114380 U JP H02114380U
- Authority
- JP
- Japan
- Prior art keywords
- stator
- rotor magnet
- magnetic pole
- stators
- outer periphery
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
- 239000013598 vector Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 1
Landscapes
- Electromechanical Clocks (AREA)
Description
第１図ａ，ｂは本考案に係るステツプモータの
一実施例を示すロータマグネツトとステータの平
面図および磁界ベクトルを示す図、第２図ａ，ｂ
〜第４図ａ，ｂはそれぞれステータの極性を変え
てロータマグネツトを一定角度回転させた状態と
、その時の磁界ベクトルを示す図、第５図は従来
のステツプモータの断面図、第６図はロータマグ
ネツトとステータの平面図、第７図はロータマグ
ネツトの回転ズレを示す図である。
４……ロータマグネツト、８，９，１０，１１
……ステータ、８ａ，９ａ，１０ａ，１１ａ……
ステータ磁極部、１２Ａ，１２Ｂ……励磁コイル
、３０Ａ〜３０Ｌ，３０ａ，３０ｂ，３１ａ，３
１ｂ，３２ａ，３２ｂ，３３ａ，３３ｂ……ステ
ータノツチ、Ｎ１，Ｎ２，Ｎ３，Ｓ１，Ｓ２，Ｓ
３……磁極。
Figures 1a and b are plan views of the rotor magnet and stator and diagrams showing magnetic field vectors showing an embodiment of the step motor according to the present invention, and Figures 2a and b are diagrams showing magnetic field vectors.
- Figures 4a and 4b are diagrams showing the state in which the rotor magnet is rotated by a certain angle by changing the polarity of the stator, and the magnetic field vector at that time, Figure 5 is a cross-sectional view of a conventional step motor, and Figure 6 7 is a plan view of the rotor magnet and the stator, and FIG. 7 is a diagram showing rotational deviation of the rotor magnet. 4...Rotor magnet, 8, 9, 10, 11
...Stator, 8a, 9a, 10a, 11a...
Stator magnetic pole part, 12A, 12B... Excitation coil, 30A to 30L, 30a, 30b, 31a, 3
1b, 32a, 32b, 33a, 33b...Stator notch, N 1 , N 2 , N 3 , S 1 , S 2 , S
3 ...Magnetic pole.
Claims (1)
された回転自在なロータマグネツトと、このロー
タマグネツトの外周に空隙をおいて対向するステ
ータ磁極部をそれぞれ有し、励磁コイルによつて
励磁されることにより前記ロータマグネツトを回
転させる複数個のステータとを備え、これらのス
テータのステータ磁極部で、ロータ静止時におけ
る前記磁極同士の境部に対応する位置と、各磁極
の中央部に対応する位置にステータノツチをそれ
ぞれ設けたことを特徴とする時計用ステツプモー
タ。 It has a rotatable rotor magnet in which magnetic poles of different polarities are alternately magnetized in the circumferential direction on the outer periphery, and stator magnetic pole parts facing each other with an air gap on the outer periphery of the rotor magnet. a plurality of stators that rotate the rotor magnet when excited, and a position corresponding to the boundary between the magnetic poles when the rotor is stationary, and a central portion of each magnetic pole in the stator magnetic pole portions of these stators. A step motor for a watch, characterized in that stator notches are provided at positions corresponding to the stator notches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2296189U JPH02114380U (en) | 1989-02-28 | 1989-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2296189U JPH02114380U (en) | 1989-02-28 | 1989-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02114380U true JPH02114380U (en) | 1990-09-13 |
Family
ID=31241548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2296189U Pending JPH02114380U (en) | 1989-02-28 | 1989-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02114380U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54114710A (en) * | 1978-02-27 | 1979-09-07 | Citizen Watch Co Ltd | Step motor for electronic clock |
-
1989
- 1989-02-28 JP JP2296189U patent/JPH02114380U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54114710A (en) * | 1978-02-27 | 1979-09-07 | Citizen Watch Co Ltd | Step motor for electronic clock |
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