JPS60141678U - Electric motor speed detection device - Google Patents
Electric motor speed detection deviceInfo
- Publication number
- JPS60141678U JPS60141678U JP2746984U JP2746984U JPS60141678U JP S60141678 U JPS60141678 U JP S60141678U JP 2746984 U JP2746984 U JP 2746984U JP 2746984 U JP2746984 U JP 2746984U JP S60141678 U JPS60141678 U JP S60141678U
- Authority
- JP
- Japan
- Prior art keywords
- speed detection
- electric motor
- stator
- detection device
- motor 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図〜第４図は従来の速度検出装置のついた電動機の
もので、第１図は縦断面図、第２図ａは゛ マグネット
、ｂはステータの拡大平面図、Ｃは同 。
図すの断面図、第３図はマグネットとコイル設定部の磁
力線の状態を示す側面図、第４図はその磁束分布図であ
り、第５図〜第８図は本考案の一実施例を示し、第５図
は縦断面図、第６図ａはステータの拡大平面図、ｂはそ
の側面図、第７図は磁 −゛力線の状態を示す側面図
、第８図はその磁束分布図である。
１・・・スピンドル、２・・・ロータヨーク、３・・・
マグネット、３ａ・・・速度検出磁極、４・・・駆動コ
イル、５・・・ステータヨーク、５ａ・・・コイル設定
部、５ｂ・・・陥没部、６・・・軸承、７・・・検出用
コイル。Figures 1 to 4 show a motor equipped with a conventional speed detection device, with Figure 1 being a longitudinal sectional view, Figure 2 a being a magnet, b being an enlarged plan view of a stator, and C being the same. 3 is a side view showing the state of magnetic lines of force between the magnet and the coil setting part, FIG. 4 is a magnetic flux distribution diagram, and FIGS. 5 to 8 show an embodiment of the present invention. 5 is a longitudinal sectional view, FIG. 6 a is an enlarged plan view of the stator, b is a side view thereof, FIG. 7 is a side view showing the state of magnetic force lines, and FIG. 8 is its magnetic flux distribution. It is a diagram. 1...Spindle, 2...Rotor yoke, 3...
Magnet, 3a... Speed detection magnetic pole, 4... Drive coil, 5... Stator yoke, 5a... Coil setting part, 5b... Recessed part, 6... Bearing, 7... Detection Coil for use.
Claims (1)
コイルとを備えたステータに対し、前記駆動コイルに対
向するマグネットを固定したロータヨークを備えたロー
タを回動自在に軸承した電動機において、前記ロータ上
に設けられた速度検出用マグネットに対向する速度検出
コイルを設定するステータにおける導磁性のコイル設定
面を、コイル設定部以外の部分を速度検出用マグネット
から離隔すべく曲設したことを特徴とする電動機の速度
検出装置。In an electric motor, a stator is provided with a stator yoke and a drive coil fixed to the stator yoke, and a rotor including a rotor yoke to which a magnet facing the drive coil is fixed is rotatably supported. The magnetically conductive coil setting surface of the stator, which sets the speed detection coil facing the speed detection magnet provided in the stator, is curved so that the part other than the coil setting part is separated from the speed detection magnet. Electric motor speed detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2746984U JPS60141678U (en) | 1984-02-29 | 1984-02-29 | Electric motor speed detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2746984U JPS60141678U (en) | 1984-02-29 | 1984-02-29 | Electric motor speed detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60141678U true JPS60141678U (en) | 1985-09-19 |
Family
ID=30524452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2746984U Pending JPS60141678U (en) | 1984-02-29 | 1984-02-29 | Electric motor speed detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60141678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01166473U (en) * | 1988-05-12 | 1989-11-21 |
-
1984
- 1984-02-29 JP JP2746984U patent/JPS60141678U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01166473U (en) * | 1988-05-12 | 1989-11-21 |
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