JPH037640U - - Google Patents
Info
- Publication number
- JPH037640U JPH037640U JP6637489U JP6637489U JPH037640U JP H037640 U JPH037640 U JP H037640U JP 6637489 U JP6637489 U JP 6637489U JP 6637489 U JP6637489 U JP 6637489U JP H037640 U JPH037640 U JP H037640U
- Authority
- JP
- Japan
- Prior art keywords
- stator core
- magnet
- shaft
- rotary sleeve
- fixed
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
- Brushless Motors (AREA)
- Motor Or Generator Frames (AREA)
Description
第１図…本考案の実施例にかかわるモータ、第
２図…従来のモータ、第３図…従来のモータにお
けるマグネツトとステータコアの部分の拡大図、
第４図…本考案のモータにおけるマグネツトとス
テータコアの部分の拡大図。
図において、１……軸、１−１……動圧発生用
溝、２……ハウジング、３……回転スリーブ、４
…バランス調整用部材付着溝、５……ヨーク、６
……マグネツト、７……ステータコア、７−１…
…ステータコア突部、８……スタツド、９……基
板、１０……磁気検出素子、１１……多面鏡、１
２……フランジ、１３……ネジ、１５……隙間、
Ｆ……ロータ部の自重、Ｌ……中心線間のずれ、
Ｈ……軸方向の長さの差、Ｏ６……マグネツト６
の中心線、Ｏ７……ステータコアの中心線、Φ…
…磁束である。
Fig. 1...A motor according to an embodiment of the present invention, Fig. 2...A conventional motor, Fig. 3...An enlarged view of the magnet and stator core portions of a conventional motor.
FIG. 4: An enlarged view of the magnet and stator core in the motor of the present invention. In the figure, 1...shaft, 1-1...dynamic pressure generation groove, 2...housing, 3...rotating sleeve, 4
... Balance adjustment member attachment groove, 5 ... Yoke, 6
...Magnet, 7...Stator core, 7-1...
... Stator core protrusion, 8 ... Stud, 9 ... Substrate, 10 ... Magnetic detection element, 11 ... Polygon mirror, 1
2...Flange, 13...Screw, 15...Gap,
F...Self weight of rotor section, L...Displacement between center lines,
H...Difference in length in the axial direction, O6 ...Magnet 6
Center line of O 7 ... Center line of stator core, Φ...
...It is magnetic flux.
Claims (1)
れた軸と、該軸の周囲に隙間を隔てて嵌挿され、
前記軸と共に動圧空気軸受を構成している回転ス
リーブと、該回転スリーブに固着されたマグネツ
トと、該マグネツトに対向して前記ハウジングに
固着されたステータコアとを少なくとも具え、該
マグネツトと該ステータコアの磁気吸引力を利用
してスラスト軸受作用を行わせているモータにお
いて、前記ステータコアの前記マグネツトとの対
向面の中央より上部にステータコア突部を設けた
ことを特徴とするモータ。 A shaft having one end fixed to the housing and the other end being a free end, and fitted around the shaft with a gap,
The rotary sleeve includes at least a rotary sleeve that constitutes a hydrodynamic air bearing together with the shaft, a magnet fixed to the rotary sleeve, and a stator core fixed to the housing opposite to the magnet. 1. A motor that performs a thrust bearing action using magnetic attraction, characterized in that a stator core protrusion is provided above the center of a surface of the stator core that faces the magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6637489U JPH0811042Y2 (en) | 1989-06-07 | 1989-06-07 | motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6637489U JPH0811042Y2 (en) | 1989-06-07 | 1989-06-07 | motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH037640U true JPH037640U (en) | 1991-01-24 |
| JPH0811042Y2 JPH0811042Y2 (en) | 1996-03-29 |
Family
ID=31599040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6637489U Expired - Lifetime JPH0811042Y2 (en) | 1989-06-07 | 1989-06-07 | motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0811042Y2 (en) |
-
1989
- 1989-06-07 JP JP6637489U patent/JPH0811042Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0811042Y2 (en) | 1996-03-29 |
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