JPH0380421U - - Google Patents
Info
- Publication number
- JPH0380421U JPH0380421U JP14015389U JP14015389U JPH0380421U JP H0380421 U JPH0380421 U JP H0380421U JP 14015389 U JP14015389 U JP 14015389U JP 14015389 U JP14015389 U JP 14015389U JP H0380421 U JPH0380421 U JP H0380421U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- coil
- drive coil
- winding
- drive
- 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 description 4
- 238000004804 winding Methods 0.000 claims 2
- 230000007935 neutral effect Effects 0.000 claims 1
Landscapes
- Diaphragms For Cameras (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
第１図は本考案に係るカメラの自動絞り調整用
モータの実施例を示した平面断面図、第２図は従
来のモータの平面断面図。
１０……モータ、１２……ロータ、１８……コ
イルボビン、４２，４４……駆動用コイル、４６
，４８……検出用コイル。
FIG. 1 is a plan sectional view showing an embodiment of a motor for automatic aperture adjustment of a camera according to the present invention, and FIG. 2 is a plan sectional view of a conventional motor. 10... Motor, 12... Rotor, 18... Coil bobbin, 42, 44... Drive coil, 46
, 48...detection coil.
Claims (1)
２極着磁されたロータと、前記コイルボビンへ該
ロータの軸線方向へ電線を巻回して形成されたロ
ータ駆動用の駆動コイルと、前記コイルボビンへ
前記ロータの軸線方向へ電線を巻回して形成され
ると共に前記駆動コイルと並設されたロータの回
動速度検出用の検出コイルとを有するカメラの自
動絞り調整モータにおいて、 前記駆動コイルは、前記ロータが外力を受けな
い中立位置において、各磁極中心に対してロータ
の両周方向へ所定角度に亘り形成され、 前記検出コイルは前記駆動用コイルの両端側に
それぞれ並設されると共に、直列に接続されてい
ることを特徴とするカメラの自動絞り調整用モー
タ。[Scope of utility model registration claim] The coil bobbin is rotatably provided, and the N, S
A bipolar magnetized rotor, a drive coil for driving the rotor formed by winding an electric wire around the coil bobbin in the axial direction of the rotor, and a drive coil for driving the rotor formed by winding an electric wire around the coil bobbin in the axial direction of the rotor. In the automatic aperture adjustment motor for a camera, the motor has a detection coil arranged in parallel with the drive coil for detecting rotational speed of the rotor, wherein the drive coil is arranged at the center of each magnetic pole in a neutral position where the rotor is not subjected to external force. , the detection coil is formed at a predetermined angle in both circumferential directions of the rotor, and the detection coil is arranged in parallel to both ends of the drive coil and connected in series. Adjustment motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14015389U JPH0380421U (en) | 1989-12-02 | 1989-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14015389U JPH0380421U (en) | 1989-12-02 | 1989-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0380421U true JPH0380421U (en) | 1991-08-19 |
Family
ID=31687148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14015389U Pending JPH0380421U (en) | 1989-12-02 | 1989-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0380421U (en) |
-
1989
- 1989-12-02 JP JP14015389U patent/JPH0380421U/ja active Pending