JPS61477U - Spindle motor for magnetic disk - Google Patents

Spindle motor for magnetic disk

Info

Publication number
JPS61477U
JPS61477U JP8168584U JP8168584U JPS61477U JP S61477 U JPS61477 U JP S61477U JP 8168584 U JP8168584 U JP 8168584U JP 8168584 U JP8168584 U JP 8168584U JP S61477 U JPS61477 U JP S61477U
Authority
JP
Japan
Prior art keywords
rotating shaft
motor
circumferential surface
outer rotor
magnetic
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
Application number
JP8168584U
Other languages
Japanese (ja)
Inventor
裕之 清水
秀憲 土井
Original Assignee
日本電気精器株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日本電気精器株式会社 filed Critical 日本電気精器株式会社
Priority to JP8168584U priority Critical patent/JPS61477U/en
Publication of JPS61477U publication Critical patent/JPS61477U/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Brushless Motors (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案のスピンドルモータの一実施例を示科見
図、第２図は従来の磁気ディスクドライブ装置の要部構
成説明図である。 １・・・・・・アウタロータ（ディスクハブ）、２・・
・・・・回転軸、３・・・・・・モータ基板、４・・・
・・・中空ブラケット、５・・・・・・固定子鉄心、６
・・・・・・固定子巻線、７・・・・・・永久磁石、８
，９・・・・・・軸受、１１・・・・・・磁性流体シー
ル、１４・・・・・・ディスクフレーム（ケーシング）
。FIG. 1 is a diagram illustrating an embodiment of the spindle motor of the present invention, and FIG. 2 is a diagram illustrating the configuration of main parts of a conventional magnetic disk drive device. 1... Outer rotor (disc hub), 2...
... Rotating shaft, 3 ... Motor board, 4 ...
...Hollow bracket, 5...Stator core, 6
...Stator winding, 7...Permanent magnet, 8
, 9...Bearing, 11...Magnetic fluid seal, 14...Disc frame (casing)
.

Claims (1)

【実用新案登録請求の範囲】 ディスクフレーム内に配設した磁気ディスクを回転駆動
するアウタロータ形ブラシレスＸモータであって、 回転軸と、該回転軸と一体に磁性材料で構成され円筒状
のディスクハブの役割を兼ねるアウタロータと、モータ
の基板と、該モータの基板に固定され上記回転軸を軸受
を介して回転自在に支持するための中空ブラケットと、
該中空ブラケットの外周面に設けられ巻線を施した固定
子鉄心と、該固定子鉄心に空隙を介して上記アウタロー
タの内周面に対向配置される永久磁石とを有し、上記回
転軸と対向させて中空ブラケットの上端部内周面に磁性
流体シールを設け、上記軸受からのオイルミストの漏洩
を防止し、上記ディスクフレーム内にモータ全体を収め
ることが可能な構造にしたことを特徴とする磁気ディス
ク用スピンドルモータ。[Claim for Utility Model Registration] An outer rotor type brushless X motor that rotationally drives a magnetic disk disposed within a disk frame, comprising a rotating shaft and a cylindrical disk hub integrally made of a magnetic material with the rotating shaft. an outer rotor, a motor board, and a hollow bracket fixed to the motor board to rotatably support the rotating shaft via a bearing;
A stator core provided on the outer circumferential surface of the hollow bracket and provided with a winding, and a permanent magnet disposed opposite to the inner circumferential surface of the outer rotor with a gap interposed in the stator core, and the rotating shaft and A magnetic fluid seal is provided on the inner circumferential surface of the upper end of the hollow brackets to prevent oil mist from leaking from the bearing, and the structure is such that the entire motor can be housed within the disc frame. Spindle motor for magnetic disks.
JP8168584U 1984-06-01 1984-06-01 Spindle motor for magnetic disk Pending JPS61477U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8168584U JPS61477U (en) 1984-06-01 1984-06-01 Spindle motor for magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8168584U JPS61477U (en) 1984-06-01 1984-06-01 Spindle motor for magnetic disk

Publications (1)

Publication Number Publication Date
JPS61477U true JPS61477U (en) 1986-01-06

Family

ID=30628697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8168584U Pending JPS61477U (en) 1984-06-01 1984-06-01 Spindle motor for magnetic disk

Country Status (1)

Country Link
JP (1) JPS61477U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63109556U (en) * 1986-12-26 1988-07-14

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5822571A (en) * 1981-07-29 1983-02-09 Japan Servo Co Ltd Dc brushless motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5822571A (en) * 1981-07-29 1983-02-09 Japan Servo Co Ltd Dc brushless motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63109556U (en) * 1986-12-26 1988-07-14

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