JPS58164288U - Cooling fan abnormality detector - Google Patents

Cooling fan abnormality detector

Info

Publication number
JPS58164288U
JPS58164288U JP6045882U JP6045882U JPS58164288U JP S58164288 U JPS58164288 U JP S58164288U JP 6045882 U JP6045882 U JP 6045882U JP 6045882 U JP6045882 U JP 6045882U JP S58164288 U JPS58164288 U JP S58164288U
Authority
JP
Japan
Prior art keywords
cooling fan
primary winding
abnormality detector
transformer
power source
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
JP6045882U
Other languages
Japanese (ja)
Inventor
伊原 卓
熊取谷 「ふみ」男
Original Assignee
株式会社日立国際電気
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 株式会社日立国際電気 filed Critical 株式会社日立国際電気
Priority to JP6045882U priority Critical patent/JPS58164288U/en
Publication of JPS58164288U publication Critical patent/JPS58164288U/en
Pending legal-status Critical Current

Links

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  • Cooling Or The Like Of Electrical Apparatus (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図は冷却用ファンと本考案による冷却用ファンの異
常検出器の接続図、第2図は第1図中の検出部の具体的
な回路図、第3図は第1図中の変成器の電源スイツチイ
ン時の2次コイル電圧とホトカプラ出力特性図である。 1・・・冷却用ファン、2・・・交流電源、3・・・異
常検出用変成器、3a、  3b・・・変成器3の1次
コイル、4・・・異常検出部、5・・・整流器、6・・
・ホトカプラ。
Fig. 1 is a connection diagram of a cooling fan and a cooling fan abnormality detector according to the present invention, Fig. 2 is a specific circuit diagram of the detection part in Fig. 1, and Fig. 3 is a modification of the cooling fan in Fig. 1. FIG. 2 is a diagram showing the secondary coil voltage and photocoupler output characteristics when the power supply of the device is switched on. DESCRIPTION OF SYMBOLS 1... Cooling fan, 2... AC power supply, 3... Transformer for abnormality detection, 3a, 3b... Primary coil of transformer 3, 4... Abnormality detection section, 5...・Rectifier, 6...
・Hotocoupler.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 交流電源に対して冷却用ファンと直列に接続する第1の
1次巻線と、交流電源に抵抗器と直列に接続し上記第1
の1次巻線と極性が反対でその起磁力が冷却用ファンの
正常運転時に上記第1の1次巻線の起磁力を打消すよう
に設定した第2の1次巻線と、これらに結合する2次巻
線とを有する異常検出用変成器と、この変成器の2次巻
線出力に接続され入力が一定レベル以上であらかじめ定
めである時間継続した場合にのみ出力を発生する異常事
態検出部とを具備することを特徴とする冷却用ファンの
異常検出器。
a first primary winding connected in series with the cooling fan to the AC power source; and a first primary winding connected in series with the resistor to the AC power source;
a second primary winding whose polarity is opposite to that of the primary winding and whose magnetomotive force cancels the magnetomotive force of the first primary winding during normal operation of the cooling fan; An abnormality detection transformer having a coupled secondary winding, and an abnormal situation that is connected to the secondary winding output of this transformer and generates an output only when the input continues at a certain level or higher for a predetermined period of time. An abnormality detector for a cooling fan, comprising: a detection section.
JP6045882U 1982-04-27 1982-04-27 Cooling fan abnormality detector Pending JPS58164288U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6045882U JPS58164288U (en) 1982-04-27 1982-04-27 Cooling fan abnormality detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6045882U JPS58164288U (en) 1982-04-27 1982-04-27 Cooling fan abnormality detector

Publications (1)

Publication Number Publication Date
JPS58164288U true JPS58164288U (en) 1983-11-01

Family

ID=30070706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6045882U Pending JPS58164288U (en) 1982-04-27 1982-04-27 Cooling fan abnormality detector

Country Status (1)

Country Link
JP (1) JPS58164288U (en)

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