JPS627772U - - Google Patents
Info
- Publication number
- JPS627772U JPS627772U JP9976485U JP9976485U JPS627772U JP S627772 U JPS627772 U JP S627772U JP 9976485 U JP9976485 U JP 9976485U JP 9976485 U JP9976485 U JP 9976485U JP S627772 U JPS627772 U JP S627772U
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- longer
- radial direction
- motor device
- comb
- 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
- 239000000758 substrate Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 230000005405 multipole Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
第１図ないし第３図はこの考案の一実施例を示
し、第１図ａ，ｂはそのステータおよびＦＧマグ
ネツトの平面図、第２図はその信号分離を行なう
電気回路図、第３図はその波形図、第４図ないし
第６図は従来モータ装置を説明するためのもので
あり、第４図はその断面図、第５図ａ，ｂはその
ステータおよびＦＧマグネツトの平面図、第６図
はＦＧ信号、ＰＧ信号のタイミングチヤート図で
ある。
１……ロータ、２……ハウジング、３，３′，
３０……ステータ、４……スピンドル、５……ブ
ツシユ、６……ロータヨーク、７……駆動マグネ
ツト、８，８０……ＦＧマグネツト、８′……Ｐ
Ｇ着磁部、９……駆動コイル、１０……鉄板基板
。
Figures 1 to 3 show an embodiment of this invention, Figures 1a and b are plan views of the stator and FG magnet, Figure 2 is an electric circuit diagram for signal separation, and Figure 3 is a plan view of the stator and FG magnet. The waveform diagrams, FIGS. 4 to 6, are for explaining the conventional motor device. FIG. 4 is a sectional view thereof, FIGS. 5 a and 5 b are plan views of the stator and FG magnet, and FIG. The figure is a timing chart of the FG signal and PG signal. 1... Rotor, 2... Housing, 3, 3',
30... Stator, 4... Spindle, 5... Bush, 6... Rotor yoke, 7... Drive magnet, 8, 80... FG magnet, 8'...P
G magnetizing section, 9...drive coil, 10...iron plate substrate.
Claims (1)
行なうＦＧマグネツトと、このＦＧマグネツトと
対向し、同心円状に略全周にわたつてくし歯状パ
ターンを施された基板とを有する直流モータ装置
において、前記ＦＧマグネツトと隣り合う２極が
他の極に比べて着磁部分が径方向に長く、かつ、
前記基板に施されたくし歯状パターンの１歯のみ
が他歯に比べて径方向に長いことを特徴とする直
流モータ装置。 A DC motor device having a multi-pole magnetized FG magnet fixed to a rotor for speed detection, and a substrate facing the FG magnet and having a concentric comb-like pattern extending substantially all the way around the FG magnet. In the two poles adjacent to the FG magnet, the magnetized portions are longer in the radial direction than the other poles, and
A DC motor device characterized in that only one tooth of the comb-like pattern provided on the substrate is longer in the radial direction than the other teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9976485U JPS627772U (en) | 1985-06-28 | 1985-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9976485U JPS627772U (en) | 1985-06-28 | 1985-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS627772U true JPS627772U (en) | 1987-01-17 |
Family
ID=30968947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9976485U Pending JPS627772U (en) | 1985-06-28 | 1985-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS627772U (en) |
-
1985
- 1985-06-28 JP JP9976485U patent/JPS627772U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS627772U (en) | ||
| JPS60171069U (en) | Rotor magnet of rotating electric machine | |
| JPS6261186U (en) | ||
| JPS6125082U (en) | Brushless motor with rotation speed detection function | |
| JPS6192181U (en) | ||
| JPS6257577U (en) | ||
| JPS61129112U (en) | ||
| JPS6450674U (en) | ||
| JPS59183180U (en) | Flat type DC brushless motor | |
| JPS6028478U (en) | electronic motor | |
| JPS6344675U (en) | ||
| JPS60137374U (en) | Rotation detection device for rotating body | |
| JPS58143485U (en) | DC brushless motor | |
| JPS6241373U (en) | ||
| JPS5857283U (en) | flat motor | |
| JPS60135072U (en) | brushless motor | |
| JPS61167054U (en) | ||
| JPS59103579U (en) | brushless motor | |
| JPH0265053U (en) | ||
| JPS6263864U (en) | ||
| JPS61138375U (en) | ||
| JPS61195775U (en) | ||
| JPS6138883U (en) | Stepper motor magnetic pole structure | |
| JPS6174275U (en) | ||
| JPS60138376U (en) | Disc type brushless motor with frequency generator |