JPH023176U - - Google Patents
Info
- Publication number
- JPH023176U JPH023176U JP7903088U JP7903088U JPH023176U JP H023176 U JPH023176 U JP H023176U JP 7903088 U JP7903088 U JP 7903088U JP 7903088 U JP7903088 U JP 7903088U JP H023176 U JPH023176 U JP H023176U
- Authority
- JP
- Japan
- Prior art keywords
- hub
- magnetic disk
- face
- motor
- 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
- 238000007789 sealing Methods 0.000 claims description 4
- 239000011553 magnetic fluid Substances 0.000 description 1
Landscapes
- Motor Or Generator Frames (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磁気デイスク
駆動用モータの断面図、第２図は従来のものの断
面図である。
１……ブラケツト、２……シヤフト、３……固
定子、４……ハブ、５，５Ａ，５Ｂ……軸受、６
……永久磁石、７，７Ａ，７Ｂ……磁性流体シー
ル（シール手段）、８……ラビリンス。
FIG. 1 is a sectional view of a magnetic disk drive motor showing an embodiment of this invention, and FIG. 2 is a sectional view of a conventional motor. 1... Bracket, 2... Shaft, 3... Stator, 4... Hub, 5, 5A, 5B... Bearing, 6
...Permanent magnet, 7,7A,7B...Magnetic fluid seal (sealing means), 8...Labyrinth.
Claims (1)
固着されてその中央に突出するシヤフトの外周上
に固定子が固定される一方、前記シヤフトに軸受
を介して支持され外周面上に磁気デイスクが搭載
されるハブの内周上に回転子としてなる永久磁石
が装着され、かつモータ内部と外部との間を封止
するシール手段が前記ハブの両側部に設けられた
磁気デイスク駆動用モータにおいて、前記ブラケ
ツトの一方の端面とこの端面に対向する前記ハブ
の端面との間にラビリンスを形成して一方の前記
シール手段としたことを特徴とする磁気デイスク
の駆動用モータ。 A stator is fixed on the outer periphery of a shaft that is fixed to a disc-shaped bracket having a mounting flange and protrudes from the center thereof, while a magnetic disk is supported by the shaft via a bearing and mounted on the outer periphery. In the magnetic disk drive motor, a permanent magnet serving as a rotor is mounted on the inner periphery of a hub, and sealing means for sealing between the inside and outside of the motor are provided on both sides of the hub. A motor for driving a magnetic disk, characterized in that a labyrinth is formed between one end face of the hub and an end face of the hub opposite to this end face to serve as one of the sealing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7903088U JPH023176U (en) | 1988-06-15 | 1988-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7903088U JPH023176U (en) | 1988-06-15 | 1988-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH023176U true JPH023176U (en) | 1990-01-10 |
Family
ID=31303919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7903088U Pending JPH023176U (en) | 1988-06-15 | 1988-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH023176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05211735A (en) * | 1992-01-30 | 1993-08-20 | Nippon Densan Corp | Spindle motor |
-
1988
- 1988-06-15 JP JP7903088U patent/JPH023176U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05211735A (en) * | 1992-01-30 | 1993-08-20 | Nippon Densan Corp | Spindle motor |
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