JPS58164288U - Cooling fan abnormality detector - Google Patents
Cooling fan abnormality detectorInfo
- 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
Links
Landscapes
- 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
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)
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.
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) |
-
1982
- 1982-04-27 JP JP6045882U patent/JPS58164288U/en active Pending
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