JPH0447375U - - Google Patents
Info
- Publication number
- JPH0447375U JPH0447375U JP8640190U JP8640190U JPH0447375U JP H0447375 U JPH0447375 U JP H0447375U JP 8640190 U JP8640190 U JP 8640190U JP 8640190 U JP8640190 U JP 8640190U JP H0447375 U JPH0447375 U JP H0447375U
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- core
- flywheel
- laminated
- excitation coil
- 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
- 239000011162 core material Substances 0.000 claims description 8
- 230000005284 excitation Effects 0.000 claims 2
- 230000004907 flux Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
第１図は本考案の一実施例に係るスピンドルモ
ータの要部説明図、第２図はこの種スピンドルモ
ータの基本構成を説明するための断面図である。
３……回転軸、４……フライホイール、５……
駆動マグネツト、６……積層コア、６ａ，６ｂ…
…コア材。
FIG. 1 is an explanatory view of the main parts of a spindle motor according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view for explaining the basic structure of this type of spindle motor. 3...rotating shaft, 4...flywheel, 5...
Drive magnet, 6... Laminated core, 6a, 6b...
...core material.
Claims (1)
フライホイールと、このフライホイールの外周壁
の内側に固定された駆動マグネツトと、上記回転
軸の軸方向に複数枚のコア材を積層して構成され
上記駆動マグネツトと対向する位置に配置された
積層コアと、この積層コアに巻回された励磁コイ
ルとを備え、この励磁コイルに通電することによ
り上記フライホイールおよび回転軸を回転せしめ
るスピンドルモータにおいて、上記積層コアの最
上層および最下層のコア材として、これら両コア
材に挟まれた中間層のコア材よりも飽和磁束密度
の高い材料を用いたことを特徴とするスピンドル
モータ。 A rotating shaft, a circular flywheel integrated with this rotating shaft, a driving magnet fixed to the inside of the outer peripheral wall of this flywheel, and a plurality of core materials laminated in the axial direction of the rotating shaft. The magnet includes a laminated core arranged in a position facing the driving magnet, and an excitation coil wound around the laminated core, and when the excitation coil is energized, the flywheel and the rotating shaft are rotated. A spindle motor characterized in that the uppermost layer and the lowermost layer of the laminated core are made of a material having a higher saturation magnetic flux density than the core material of the intermediate layer sandwiched between these two core materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8640190U JPH0447375U (en) | 1990-08-20 | 1990-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8640190U JPH0447375U (en) | 1990-08-20 | 1990-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0447375U true JPH0447375U (en) | 1992-04-22 |
Family
ID=31818055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8640190U Pending JPH0447375U (en) | 1990-08-20 | 1990-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0447375U (en) |
-
1990
- 1990-08-20 JP JP8640190U patent/JPH0447375U/ja active Pending
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