JPH0220898U - - Google Patents
Info
- Publication number
- JPH0220898U JPH0220898U JP9722888U JP9722888U JPH0220898U JP H0220898 U JPH0220898 U JP H0220898U JP 9722888 U JP9722888 U JP 9722888U JP 9722888 U JP9722888 U JP 9722888U JP H0220898 U JPH0220898 U JP H0220898U
- Authority
- JP
- Japan
- Prior art keywords
- spindle motor
- impeller
- detecting section
- yoke
- rotor yoke
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第１図ないし第３図は本考案の一実施例を示す
もので、第１図は縦断側面図、第２図はロータヨ
ークの一部を切欠して羽根車を示す平面図、第３
図は一部の流気管を切欠して示すカバーの平面図
、第４図は従来例を示す縦断側面図である。
４……スピンドルモータ、５……回転軸、６…
…光デイスク、１４……ロータヨーク、１６……
ステータヨーク、１８……光電変換素子、１９…
…回転検出部、２０……羽根、２１……羽根車、
２３…カバー、２５……流入口、２６……流気管
、２７……噴出口。
Figures 1 to 3 show an embodiment of the present invention, in which Figure 1 is a vertical side view, Figure 2 is a plan view showing the impeller with a part of the rotor yoke cut away, and Figure 3 is a plan view showing the impeller.
The figure is a plan view of the cover showing a part of the airflow pipe cut away, and FIG. 4 is a longitudinal sectional side view showing a conventional example. 4... Spindle motor, 5... Rotating shaft, 6...
...Optical disk, 14...Rotor yoke, 16...
Stator yoke, 18...Photoelectric conversion element, 19...
...Rotation detection unit, 20...Blade, 21...Impeller,
23...Cover, 25...Inflow port, 26...Air flow pipe, 27...Blowout port.
Claims (1)
ークとを対向させてなるスピンドルモータを設け
、このスピンドルモータに前記ステータヨークの
外周部に配置された光電変換素子を有する回転検
出部を設け、前記ロータヨークにその回転中心か
ら放射状に配列された複数の羽根を有する羽根車
を設け、前記スピンドルモータを囲繞するカバー
に、前記羽根車に対向する流入口と前記スピンド
ルモータに向けて開口する噴出口とを両端に有す
る流気管を形成したことを特徴とする光デイスク
ドライブ装置。 A spindle motor is provided in which a rotor yoke and a stator yoke that are fixed to a rotating shaft are opposed to each other, a rotation detecting section having a photoelectric conversion element disposed on the outer periphery of the stator yoke is provided in the spindle motor, and a rotation detecting section is provided in the rotor yoke. An impeller having a plurality of blades arranged radially from a rotation center is provided, and a cover surrounding the spindle motor is provided with an inlet facing the impeller and an outlet opening toward the spindle motor at both ends. What is claimed is: 1. An optical disk drive device, characterized in that a flow tube is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9722888U JPH0220898U (en) | 1988-07-22 | 1988-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9722888U JPH0220898U (en) | 1988-07-22 | 1988-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0220898U true JPH0220898U (en) | 1990-02-13 |
Family
ID=31322515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9722888U Pending JPH0220898U (en) | 1988-07-22 | 1988-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0220898U (en) |
-
1988
- 1988-07-22 JP JP9722888U patent/JPH0220898U/ja active Pending
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