JPH0196774U - - Google Patents
Info
- Publication number
- JPH0196774U JPH0196774U JP19307987U JP19307987U JPH0196774U JP H0196774 U JPH0196774 U JP H0196774U JP 19307987 U JP19307987 U JP 19307987U JP 19307987 U JP19307987 U JP 19307987U JP H0196774 U JPH0196774 U JP H0196774U
- Authority
- JP
- Japan
- Prior art keywords
- bracket
- stator
- fixing portion
- stator fixing
- rotor
- 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
Landscapes
- Brushless Motors (AREA)
- Motor Or Generator Frames (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
第１図は本考案を磁気デイスク装置に用いられ
るスピンドルモータに適用した一実施例を示す縦
断面図、第２図は同実施例の要部の拡大縦断面図
であり、そして、第３図は従来例の第１図相当図
である。
図中、１１はブラケツト、１２は円筒部、１３
は軸（ステータ固定部）、１５はステータ、１７
はロータ、１８ａは開口端部、２１は磁気シール
、２５は磁性流体を示す。
FIG. 1 is a vertical cross-sectional view showing an embodiment in which the present invention is applied to a spindle motor used in a magnetic disk device, FIG. 2 is an enlarged vertical cross-sectional view of the main parts of the same embodiment, and FIG. 1 is a diagram corresponding to FIG. 1 of the conventional example. In the figure, 11 is a bracket, 12 is a cylindrical part, and 13 is a bracket.
is the shaft (stator fixing part), 15 is the stator, 17
18a is a rotor, 18a is an open end, 21 is a magnetic seal, and 25 is a magnetic fluid.
Claims (1)
ラケツトのステータ固定部に取付けられたステー
タと、このステータを包囲して回転可能に設けら
れ前記ブラケツトに面する側が開口する有底円筒
状のロータと、このロータの開口端部及び前記ブ
ラケツト間に構成され導電性の磁性流体を用いた
磁気シールとを具備してなるブラシレスモータ。 A bracket having a stator fixing portion, a stator attached to the stator fixing portion of the bracket, a bottomed cylindrical rotor rotatably provided surrounding the stator and having an open side facing the bracket, and the rotor. A brushless motor comprising: an open end of the bracket; and a magnetic seal configured between the bracket and using a conductive magnetic fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19307987U JPH0196774U (en) | 1987-12-19 | 1987-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19307987U JPH0196774U (en) | 1987-12-19 | 1987-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0196774U true JPH0196774U (en) | 1989-06-27 |
Family
ID=31483898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19307987U Pending JPH0196774U (en) | 1987-12-19 | 1987-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0196774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017089700A (en) * | 2015-11-05 | 2017-05-25 | ミネベアミツミ株式会社 | Pivot assy bearing and disk driving device |
-
1987
- 1987-12-19 JP JP19307987U patent/JPH0196774U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017089700A (en) * | 2015-11-05 | 2017-05-25 | ミネベアミツミ株式会社 | Pivot assy bearing and disk driving device |
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