JPH0241653U - - Google Patents
Info
- Publication number
- JPH0241653U JPH0241653U JP11820688U JP11820688U JPH0241653U JP H0241653 U JPH0241653 U JP H0241653U JP 11820688 U JP11820688 U JP 11820688U JP 11820688 U JP11820688 U JP 11820688U JP H0241653 U JPH0241653 U JP H0241653U
- Authority
- JP
- Japan
- Prior art keywords
- inner flange
- magnetic material
- cylindrical portion
- pole piece
- fluid seal
- 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
- 239000011553 magnetic fluid Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
第１図は本考案の一実施例を示す要部断面正面
図、第２図は他の実施例を示す要部断面正面図、
第３図は変形例を示す断面正面図、第４図は他の
具体例を示す要部断面正面図である。
１……円筒部、２……インサート、３……内周
面、４……内フランジ部、５……磁性流体シール
、６……ポールピース部、７……円筒部、８……
開口端、１３……内フランジ部。
FIG. 1 is a cross-sectional front view of the main part showing one embodiment of the present invention, FIG. 2 is a front cross-sectional view of the main part showing another embodiment,
FIG. 3 is a sectional front view showing a modified example, and FIG. 4 is a sectional front view of a main part showing another specific example. DESCRIPTION OF SYMBOLS 1... Cylindrical part, 2... Insert, 3... Inner peripheral surface, 4... Inner flange part, 5... Magnetic fluid seal, 6... Pole piece part, 7... Cylindrical part, 8...
Opening end, 13...Inner flange part.
Claims (1)
る薄肉のインサート２を埋設し、上記円筒部１の
内周面３から突出状として該インサート２に内フ
ランジ部４を形成し、該内フランジ部４を磁性流
体シール５のポールピース部６として構成したこ
とを特徴とするスピンドルモータ。 ２ 磁性材からなる円筒部７の開口端８を、内径
方向に折曲げ状として内フランジ部１３を形成し
、該内フランジ部１３を磁性流体シール５のポー
ルピース部６に兼用したことを特徴とするスピン
ドルモータ。[Claims for Utility Model Registration] 1. A thin insert 2 made of a magnetic material is embedded in a cylindrical portion 1 made of a non-magnetic material, and an inner flange is attached to the insert 2 in a shape protruding from the inner circumferential surface 3 of the cylindrical portion 1. A spindle motor characterized in that the inner flange portion 4 is configured as a pole piece portion 6 of a magnetic fluid seal 5. 2. The opening end 8 of the cylindrical portion 7 made of a magnetic material is bent in the inner diameter direction to form an inner flange portion 13, and the inner flange portion 13 is also used as the pole piece portion 6 of the magnetic fluid seal 5. spindle motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11820688U JPH0632764Y2 (en) | 1988-09-08 | 1988-09-08 | Spindle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11820688U JPH0632764Y2 (en) | 1988-09-08 | 1988-09-08 | Spindle motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0241653U true JPH0241653U (en) | 1990-03-22 |
| JPH0632764Y2 JPH0632764Y2 (en) | 1994-08-24 |
Family
ID=31362364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11820688U Expired - Lifetime JPH0632764Y2 (en) | 1988-09-08 | 1988-09-08 | Spindle motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632764Y2 (en) |
-
1988
- 1988-09-08 JP JP11820688U patent/JPH0632764Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0632764Y2 (en) | 1994-08-24 |