JPH01105373U - - Google Patents
Info
- Publication number
- JPH01105373U JPH01105373U JP41988U JP41988U JPH01105373U JP H01105373 U JPH01105373 U JP H01105373U JP 41988 U JP41988 U JP 41988U JP 41988 U JP41988 U JP 41988U JP H01105373 U JPH01105373 U JP H01105373U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- flange
- spindle
- facing
- outer periphery
- 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 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
Landscapes
- Brushless Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
第１図はこの考案の実施例を示す部分拡大図、
第２図は一般的なスピンドルモータを示す断面図
である。
１……フランジ、２……軸受箱、５……スピン
ドルハブ、９……ホール素子、１０……磁石、２
０……磁性キヤツプ。
Fig. 1 is a partially enlarged view showing an embodiment of this invention;
FIG. 2 is a sectional view showing a general spindle motor. 1... Flange, 2... Bearing box, 5... Spindle hub, 9... Hall element, 10... Magnet, 2
0...Magnetic cap.
Claims (1)
け、前記電動機の外周に電動機で駆動される円筒
状の非磁性材からなるスピンドルハブを設け、こ
のスピンドルハブの外周に磁気デイスクを搭載す
るスピンドルモータにおいて、前記スピンドルハ
ブの前記フランジに対向する面に前記フランジに
対向する面のみに開口する磁性体キヤツプで囲ま
れた磁石を設け、この磁石に対向する前記フラン
ジに位置検出用の磁電変換素子を設けることを特
徴とするスピンドルモータの位置検出装置。 In the spindle motor, a flange for mounting the motor is provided at one end of the motor, a spindle hub made of a cylindrical non-magnetic material driven by the motor is provided on the outer periphery of the motor, and a magnetic disk is mounted on the outer periphery of the spindle hub. A magnet surrounded by a magnetic cap that is open only on the surface facing the flange is provided on the surface of the spindle hub facing the flange, and a magnetoelectric conversion element for position detection is provided on the flange facing the magnet. Features a spindle motor position detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP41988U JPH01105373U (en) | 1988-01-06 | 1988-01-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP41988U JPH01105373U (en) | 1988-01-06 | 1988-01-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01105373U true JPH01105373U (en) | 1989-07-17 |
Family
ID=31199428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP41988U Pending JPH01105373U (en) | 1988-01-06 | 1988-01-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01105373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0326275U (en) * | 1989-07-21 | 1991-03-18 |
-
1988
- 1988-01-06 JP JP41988U patent/JPH01105373U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0326275U (en) * | 1989-07-21 | 1991-03-18 |