JPS63172276U - - Google Patents
Info
- Publication number
- JPS63172276U JPS63172276U JP6423287U JP6423287U JPS63172276U JP S63172276 U JPS63172276 U JP S63172276U JP 6423287 U JP6423287 U JP 6423287U JP 6423287 U JP6423287 U JP 6423287U JP S63172276 U JPS63172276 U JP S63172276U
- Authority
- JP
- Japan
- Prior art keywords
- attached
- housing
- rotor
- circuit board
- rotation speed
- 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 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
Landscapes
- Brushless Motors (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
第１図および第２図は本考案の一実施例を示し
、第１図は縦断側面図、第２図は磁気シールド板
の平面図、第３図は従来例を示す縦断側面図であ
る。
１……ハウジング、３……軸受支え部、５，６
……軸受、７……ロータ、８……回転軸、１０…
…ロータヨーク、１１……ロータマグネツト、１
５……制御用回路基板、１６……位置センサ、１
８……ハブ、１９……回転数制御用マグネツト、
２０……回転数制御用回路基板、２３……磁気シ
ールド板。
1 and 2 show an embodiment of the present invention, FIG. 1 is a longitudinal side view, FIG. 2 is a plan view of a magnetic shield plate, and FIG. 3 is a longitudinal side view of a conventional example. 1...Housing, 3...Bearing support part, 5, 6
... Bearing, 7 ... Rotor, 8 ... Rotating shaft, 10 ...
...Rotor yoke, 11...Rotor magnet, 1
5...Control circuit board, 16...Position sensor, 1
8... Hub, 19... Rotation speed control magnet,
20...Rotation speed control circuit board, 23...Magnetic shielding plate.
Claims (1)
軸受を取付け、この軸受に支持されるロータの回
転軸を上記ハウジングに貫通させるとともに、こ
の回転軸の一端部にロータのロータヨークを取付
け、このヨークの内側にロータのロータマグネツ
トを取付け、このロータマグネツトの内周面との
間にギヤツプを設けて配置されるステータコアに
コイルを巻き付けてなるステータを上記ハウジン
グに取付け、上記ロータマグネツトと上記ハウジ
ングとの間に位置センサを取付けた駆動用回路基
板を設け、かつ、上記回転軸の他端部にハブを取
付けるとともに、このハブに回転数制御用マグネ
ツトを取付け、このマグネツトと上記ハウジング
との間に回転数制御用回路基板を設けたブラシレ
スサーボモータにおいて、 上記ハウジングにおける上記ハブ側の面に磁気
シールド板を装着するとともに、このシールド板
の外径を上記回転数制御用回路基板が備える検出
コイルパターンの外径よりも少なくとも大きくし
、かつ、上記シールド板における上記ハブ側の面
に上記回転数制御用回路基板を密接して取付けた
ことを特徴とするブラシレスサーボモータ。[Claims for Utility Model Registration] A bearing is attached to a bearing support provided in the center of the housing, and the rotating shaft of the rotor supported by this bearing is passed through the housing, and the rotor is attached to one end of the rotating shaft. A rotor yoke is attached, a rotor magnet of the rotor is attached to the inside of this yoke, and a stator is attached to the housing, which is made by winding a coil around a stator core that is arranged with a gap between it and the inner peripheral surface of this rotor magnet. , providing a driving circuit board with a position sensor attached between the rotor magnet and the housing, attaching a hub to the other end of the rotating shaft, and attaching a rotation speed control magnet to the hub, In a brushless servo motor in which a circuit board for controlling the rotation speed is provided between the magnet and the housing, a magnetic shield plate is attached to the surface of the housing on the hub side, and the outer diameter of the shield plate is adjusted to the rotation speed above. A brushless servo, characterized in that the outer diameter is at least larger than the outer diameter of a detection coil pattern provided on the control circuit board, and the rotation speed control circuit board is closely attached to the hub-side surface of the shield plate. motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6423287U JPS63172276U (en) | 1987-04-30 | 1987-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6423287U JPS63172276U (en) | 1987-04-30 | 1987-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63172276U true JPS63172276U (en) | 1988-11-09 |
Family
ID=30900202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6423287U Pending JPS63172276U (en) | 1987-04-30 | 1987-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63172276U (en) |
-
1987
- 1987-04-30 JP JP6423287U patent/JPS63172276U/ja active Pending