JPH0421167U - - Google Patents
Info
- Publication number
- JPH0421167U JPH0421167U JP6346490U JP6346490U JPH0421167U JP H0421167 U JPH0421167 U JP H0421167U JP 6346490 U JP6346490 U JP 6346490U JP 6346490 U JP6346490 U JP 6346490U JP H0421167 U JPH0421167 U JP H0421167U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- signal
- fixed
- coil
- printed circuit
- 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
- 230000001939 inductive effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
Description
第１図は本考案の実施例の構造を半部を断面し
て示した正面図、第２図は本考案の実施例で用い
る信号コイルをコイル保持板に取付けた状態を示
した斜視図、第３図は第２図の信号コイルの展開
図、第４図は従来の電動機の正面図である。
１……固定子、２……回転子、３……信号発電
用磁石、４……プリント基板、５……電子部品、
６……信号コイル、６２……コイルパターン、７
……コイル保持板。
Fig. 1 is a front view showing the structure of an embodiment of the present invention with half sectioned; Fig. 2 is a perspective view showing a state in which a signal coil used in the embodiment of the present invention is attached to a coil holding plate; FIG. 3 is a developed view of the signal coil shown in FIG. 2, and FIG. 4 is a front view of a conventional electric motor. 1... Stator, 2... Rotor, 3... Magnet for signal generation, 4... Printed circuit board, 5... Electronic components,
6...Signal coil, 62...Coil pattern, 7
...Coil holding plate.
Claims (1)
、板面を前記回転子の中心軸線とほぼ直交させた
状態で前記回転子の近傍に配置されたプリント基
板と、周方向に多数の磁極が並ぶように着磁され
て前記回転子に固定された信号発生用磁石と、前
記信号発生用磁石に所定のギヤツプを介して対向
配置された状態で前記プリント基板に対して固定
されて前記回転子の回転速度に比例した周波数の
信号を誘起する信号コイルとを備え、前記プリン
ト基板には前記信号コイルの出力を入力として前
記回転子の回転を制御する制御回路の構成部品が
装着されている電動機において、 前記信号発生用磁石はその磁極面を径方向の外
側に向けた状態で前記回転子の外周に固定され、 前記回転子の外周面を同心的に取り囲む環状の
コイル保持板が前記プリント基板に対して固定さ
れ、 前記信号コイルは前記コイル保持板の内周部に
設けられて前記信号用磁石の磁極面に対向配置さ
れていることを特徴とする電動機。[Claims for Utility Model Registration] A stator, a rotor rotating outside the stator, and a print placed near the rotor with its plate surface substantially perpendicular to the central axis of the rotor. A substrate, a signal generating magnet magnetized so that a large number of magnetic poles are arranged in a circumferential direction and fixed to the rotor, and the printed circuit board placed opposite to the signal generating magnet with a predetermined gap interposed therebetween. a signal coil fixed to the board and inducing a signal with a frequency proportional to the rotational speed of the rotor, the printed circuit board having an output of the signal coil as an input to control the rotation of the rotor; In an electric motor equipped with circuit components, the signal generating magnet is fixed to the outer periphery of the rotor with its magnetic pole face facing outward in the radial direction, and concentrically extends around the outer periphery of the rotor. A surrounding annular coil holding plate is fixed to the printed circuit board, and the signal coil is provided on an inner peripheral portion of the coil holding plate and is arranged to face a magnetic pole surface of the signal magnet. Electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6346490U JPH0421167U (en) | 1990-06-15 | 1990-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6346490U JPH0421167U (en) | 1990-06-15 | 1990-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0421167U true JPH0421167U (en) | 1992-02-21 |
Family
ID=31593540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6346490U Pending JPH0421167U (en) | 1990-06-15 | 1990-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0421167U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60106347A (en) * | 1983-11-14 | 1985-06-11 | Copal Denshi Kk | Magnetic circuit forming member of dc servo motor |
| JPS6355777B2 (en) * | 1981-01-23 | 1988-11-04 | Nippon Electron Optics Lab |
-
1990
- 1990-06-15 JP JP6346490U patent/JPH0421167U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6355777B2 (en) * | 1981-01-23 | 1988-11-04 | Nippon Electron Optics Lab | |
| JPS60106347A (en) * | 1983-11-14 | 1985-06-11 | Copal Denshi Kk | Magnetic circuit forming member of dc servo motor |
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