JPS5825524U - Spindle drive motor overheat prevention device - Google Patents

Spindle drive motor overheat prevention device

Info

Publication number
JPS5825524U
JPS5825524U JP11741681U JP11741681U JPS5825524U JP S5825524 U JPS5825524 U JP S5825524U JP 11741681 U JP11741681 U JP 11741681U JP 11741681 U JP11741681 U JP 11741681U JP S5825524 U JPS5825524 U JP S5825524U
Authority
JP
Japan
Prior art keywords
drive motor
spindle drive
prevention device
overheat prevention
rotation speed
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
JP11741681U
Other languages
Japanese (ja)
Inventor
浅田　英雄
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP11741681U priority Critical patent/JPS5825524U/en
Publication of JPS5825524U publication Critical patent/JPS5825524U/en
Pending legal-status Critical Current

Links

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図は従来装置を示す図、第２図は本考案の実施例を
示す図である。 １・・曲スピンドル駆動モーター、２・・・・・・コイ
ル、３・・・・・・サーマルプロテクター、３ａ・・・
・・・サーマルプロテクターの接点、４・・・・・・リ
レー、４ａ、　　４ｂ・・・・・・接点、５・・・・・
・進相コンデンサ、６・・面回転速度判定器、７・・・
・・・タイマー、８・・・・・・リレー、８ａ・・・・
・・リレーの接点、９・・・・・・始動、停止信号線。FIG. 1 is a diagram showing a conventional device, and FIG. 2 is a diagram showing an embodiment of the present invention. 1...Curved spindle drive motor, 2...Coil, 3...Thermal protector, 3a...
...Thermal protector contact, 4...Relay, 4a, 4b...Contact, 5...
・Phase advance capacitor, 6... Surface rotation speed determiner, 7...
...Timer, 8...Relay, 8a...
...Relay contact, 9...Start, stop signal line.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 磁気ディスク装置におけるスピンドル駆動モーターの過
熱を防止する装置において、スピンドル駆動モーターを
始動してから、一定時間を検出するタイマーと、前記ス
ピンドル駆動モーター文は前記スピンドル駆動モーター
で駆動されるスピンドルの回転速度を検出する手段とを
含み、前記一定時間後の回転速度が規定回転速度以下で
ある場合に前記スピンドル駆動モーターへの電源を切断
することを特徴とする磁気ディスク装置におけるスピン
ドル駆動モーター過熱防止装置。A device for preventing overheating of a spindle drive motor in a magnetic disk device includes a timer that detects a certain period of time after starting the spindle drive motor, and the spindle drive motor statement detects the rotational speed of the spindle driven by the spindle drive motor. A device for preventing overheating of a spindle drive motor in a magnetic disk drive, comprising: means for detecting a rotation speed after the predetermined period of time, and cutting off power to the spindle drive motor when the rotation speed after the predetermined period of time is below a specified rotation speed.
JP11741681U 1981-08-07 1981-08-07 Spindle drive motor overheat prevention device Pending JPS5825524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11741681U JPS5825524U (en) 1981-08-07 1981-08-07 Spindle drive motor overheat prevention device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11741681U JPS5825524U (en) 1981-08-07 1981-08-07 Spindle drive motor overheat prevention device

Publications (1)

Publication Number Publication Date
JPS5825524U true JPS5825524U (en) 1983-02-18

Family

ID=29911594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11741681U Pending JPS5825524U (en) 1981-08-07 1981-08-07 Spindle drive motor overheat prevention device

Country Status (1)

Country Link
JP (1) JPS5825524U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6139819A (en) * 1984-07-30 1986-02-26 三菱農機株式会社 Actuator protecting device
JPS61128402A (en) * 1984-11-27 1986-06-16 松下電器産業株式会社 Lighting fixture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6139819A (en) * 1984-07-30 1986-02-26 三菱農機株式会社 Actuator protecting device
JPS61128402A (en) * 1984-11-27 1986-06-16 松下電器産業株式会社 Lighting fixture
JPH0234121B2 (en) * 1984-11-27 1990-08-01 Matsushita Denki Sangyo Kk

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