JPS6229753U - - Google Patents
Info
- Publication number
- JPS6229753U JPS6229753U JP12185485U JP12185485U JPS6229753U JP S6229753 U JPS6229753 U JP S6229753U JP 12185485 U JP12185485 U JP 12185485U JP 12185485 U JP12185485 U JP 12185485U JP S6229753 U JPS6229753 U JP S6229753U
- Authority
- JP
- Japan
- Prior art keywords
- view
- rotor
- plan
- showing
- encoder disk
- 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
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第１図は本考案に係る小型電動機の一実施例を
示す縦断面図、第２図は同上実施例をセンサを取
り除いた状態で示す縮小平面図、第３図は上記実
施例の平面図、第４図は上記実施例に用いられて
いるエンコーダデイスクを示す平面図、第５図は
上記実施例に用いられているセンサユニツトの斜
面図、第６図は反射型フオトインタラプタの検出
距離特性を示す線図、第７図は本考案に用いるこ
とができる検出回路の例を示す回路図、第８図は
本考案に適用可能なエンコーダデイスクの別の例
を示す平面図、第９図は同上エンコーダデイスク
を有するローターの例を示す平面図、第１０図は
同上縦断面図、第１１図は本考案に適用可能なロ
ーターの別を示す平面図、第１２図は同上縦断面
図、第１３図は本考案に適用可能なローターのさ
らに別の例を示す平面図、第１４図は同上縦断面
図、第１５図は本考案に適用可能なエンコーダデ
イスクとローターマグネツトの別の例を示す平面
図、第１６図は第１５図のエンコーダデイスクに
よつて得られる検出信号を示すタイミングチヤー
ト、第１７図は従来の小型電動機に用いられてい
るエンコーダデイスクの例を示す平面図である。
１８…軸、２０…ローター、２１，３６，３８
，４３…エンコーダデイスク、２１ａ，３６ａ，
３８ａ…切り欠き。
FIG. 1 is a vertical sectional view showing an embodiment of a small electric motor according to the present invention, FIG. 2 is a reduced plan view of the same embodiment with the sensor removed, and FIG. 3 is a plan view of the above embodiment. Fig. 4 is a plan view showing the encoder disk used in the above embodiment, Fig. 5 is a perspective view of the sensor unit used in the above embodiment, and Fig. 6 shows the detection distance characteristics of the reflective photointerrupter. Fig. 7 is a circuit diagram showing an example of a detection circuit that can be used in the present invention, Fig. 8 is a plan view showing another example of an encoder disk applicable to the present invention, and Fig. 9 is the same as above. 10 is a plan view showing an example of a rotor having an encoder disk; FIG. 11 is a plan view showing another rotor applicable to the present invention; FIG. 12 is a longitudinal sectional view of the same; FIG. The figure is a plan view showing yet another example of a rotor applicable to the present invention, FIG. 14 is a longitudinal sectional view of the same, and FIG. 15 is a plan view showing another example of an encoder disk and rotor magnet applicable to the present invention. FIG. 16 is a plan view showing a timing chart showing a detection signal obtained by the encoder disk of FIG. 15, and FIG. 17 is a plan view showing an example of an encoder disk used in a conventional small electric motor. 18...shaft, 20...rotor, 21, 36, 38
, 43...Encoder disk, 21a, 36a,
38a...notch.
Claims (1)
るエンコーダデイスクを、ローターの磁極と一定
の関係をもつて一体回転するようにローターの軸
方向側面に取付けたことを特徴とする小型電動機
。 A small electric motor characterized in that an encoder disk, which is formed by cutting out a part of a flat plate at a predetermined interval, is attached to the axial side surface of a rotor so that it rotates integrally with the magnetic poles of the rotor in a certain relationship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12185485U JPS6229753U (en) | 1985-08-08 | 1985-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12185485U JPS6229753U (en) | 1985-08-08 | 1985-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6229753U true JPS6229753U (en) | 1987-02-23 |
Family
ID=31011504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12185485U Pending JPS6229753U (en) | 1985-08-08 | 1985-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6229753U (en) |
-
1985
- 1985-08-08 JP JP12185485U patent/JPS6229753U/ja active Pending