JPS6346325A - Abnormality display device for ventilating fan - Google Patents
Abnormality display device for ventilating fanInfo
- Publication number
- JPS6346325A JPS6346325A JP19002186A JP19002186A JPS6346325A JP S6346325 A JPS6346325 A JP S6346325A JP 19002186 A JP19002186 A JP 19002186A JP 19002186 A JP19002186 A JP 19002186A JP S6346325 A JPS6346325 A JP S6346325A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- resistor
- motor
- ventilating fan
- ventilation fan
- 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
- 230000005856 abnormality Effects 0.000 title claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 8
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 229910052754 neon Inorganic materials 0.000 description 3
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
Landscapes
- Ventilation (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は換気扇の異常表示装置に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to an abnormality display device for a ventilation fan.
従来の技術
従来、換気扇の表示装置は、一般に第３図に示すような
構成であった。すなわち、商用交流電源２１に運転・停
止を操作するスイッチ２２を介して換気扇のモータ２３
が接続され、この換気扇のモータ２３と並列にネオン管
表示灯２４と抵抗２５を直列に接続したものが接続され
ていた。そして換気扇の運転時には、ネオン管表示灯２
４が点灯するのであった。2. Description of the Related Art Conventionally, a display device for a ventilation fan generally has a configuration as shown in FIG. That is, the motor 23 of the ventilation fan is connected to the commercial AC power supply 21 via the switch 22 for operating/stopping the operation.
was connected, and a neon tube indicator light 24 and a resistor 25 connected in series were connected in parallel to the motor 23 of the ventilation fan. And when operating the ventilation fan, the neon tube indicator light 2
4 was lit.
発明が解決しようとする問題点
このような従来の構成では換気扇のモータ２１が異常発
熱していても通電されておれば運転表示のネオン管表示
灯２４は点灯しているために見わけがつきにくいという
問題点があった。Problems to be Solved by the Invention In such a conventional configuration, even if the motor 21 of the ventilation fan generates abnormal heat, it is difficult to tell because the neon tube indicator light 24 indicating operation is lit as long as the motor 21 of the ventilation fan is energized. The problem was that it was difficult.
本発明はこのような問題点を解決するもので、換気扇の
モータ２１が異常発熱してくると、その現象を表示灯で
点灯することを目的とするものである。The present invention is intended to solve these problems, and aims to illuminate an indicator light when the motor 21 of the ventilation fan generates abnormal heat.
問題点を解決するだめの手段
この問題点を解決するた、″）に本発明は、換気扇のモ
ータに直列に接続された温度ヒユーズと、この温度ヒユ
ーズに並列に抵抗とフォトカプラ入力となる互いに逆並
列接続の発光ダイオード接続した検出部と、前記換気扇
のモータに並列に整流ダイオードと抵抗、発光ダイオー
ド、トランジスタのコレクタ、エミッタを直列に接続す
るとともに前記整流ダイオードのカソードとトランジス
タのペースの間にフォトカプラ出力となるＣｄｓ抵抗体
と前記トランジスタのペースとエミッタの間に抵抗を接
続した表示部とから換気扇の異常表示装置を構成したも
のである。Means for Solving the Problem In order to solve this problem, the present invention provides a temperature fuse connected in series to the motor of the ventilation fan, and a resistor and a photocoupler input in parallel to the temperature fuse. A detection unit connected to anti-parallel light emitting diodes, a rectifier diode and a resistor connected in parallel to the motor of the ventilation fan, a light emitting diode, a collector and an emitter of a transistor are connected in series, and between the cathode of the rectifier diode and the pace of the transistor. An abnormality display device for a ventilation fan is constructed from a Cds resistor serving as a photocoupler output and a display section in which a resistor is connected between the pace and emitter of the transistor.
作 用
この構成により換気扇のモータが異常発熱し、温度ヒユ
ーズが切れた場合には検出部に電流が流れ発光ダイオー
ドを点灯し、異常表示をすることとなる。Function: With this configuration, if the motor of the ventilation fan generates abnormal heat and the temperature fuse is blown, current will flow to the detection unit, lighting up the light emitting diode, and indicating an abnormality.
実施例
以下、本発明の一実施例を第１図および第２図にもとす
き説明する。EXAMPLE Hereinafter, an example of the present invention will be explained with reference to FIGS. 1 and 2.
第１図において、換気扇のモータ１は、運転・停止を操
作するスイッチ２と温度ヒユーズ３を介して商用交流電
源４に接続されている。温度ヒユーズ３には並列にフォ
トカプラ入力となる逆並列接続の発光ダイオード５と抵
抗６の直列回路が接続されており、換気扇の異常検出部
を構成している。そして、商用交流電源４には、換気扇
のモータ１と並列に整流ダイオード６、抵抗７、発光ダ
イオード８、トランジスタ９の直列回路が接続されてお
り、この直列回路と、前記整流ダイオード６のカソード
とトランジスタ９０ベース間に接続されたフォトカプラ
出力のＣｄｓ抵抗体１０と、前記トランジスタ９のペー
ス・エミッタ間に接続された抵抗１１とから換気扇の運
転表示部を構成している。In FIG. 1, a ventilation fan motor 1 is connected to a commercial AC power source 4 via a switch 2 for operation/stop operation and a temperature fuse 3. A series circuit of an anti-parallel connected light emitting diode 5 and a resistor 6 is connected in parallel to the temperature fuse 3, which serves as a photocoupler input, and constitutes an abnormality detection section of the ventilation fan. A series circuit of a rectifier diode 6, a resistor 7, a light emitting diode 8, and a transistor 9 is connected to the commercial AC power source 4 in parallel with the motor 1 of the ventilation fan, and this series circuit and the cathode of the rectifier diode 6 A Cds resistor 10 with a photocoupler output connected between the base of the transistor 90 and a resistor 11 connected between the pace emitter of the transistor 9 constitute an operation display section of the ventilation fan.
上記構成において、換気扇のモータ１の通電状態による
Ｃｄｓ抵抗体１０の変化特性を第２図に示すが、正常運
転時にはＡ点の特性を有し、抵抗値Ｒ１、そのときの電
流値は工、となる。この電流値１１ ではトランジスタ
９は導通せず、しだがって発光ダイオード８は点灯しな
い。そして換気扇のモータ１が異常状態となり温度とヒ
ユーズ３かが切れると、フォトカプラ入力の発光ダイオ
ード６に電流が流れフォトカプラ出力のＣｄｓ抵抗体１
０の特性はＢ点に示すようになう、抵抗値Ｒ２は正常時
のそれＲ１よりも小さくなり電流値工、は大きくなり、
トランジスタ９を導通させ発光ダイオード８を点灯させ
る。したがって換気扇のモータ１の異常を知らせること
ができることとなる。In the above configuration, the change characteristics of the Cds resistor 10 depending on the energization state of the ventilation fan motor 1 are shown in FIG. becomes. At this current value of 11, the transistor 9 is not conductive, and therefore the light emitting diode 8 is not lit. When the motor 1 of the ventilation fan is in an abnormal state and the temperature and the fuse 3 are blown, current flows through the light emitting diode 6 of the photocoupler input and the Cds resistor 1 of the photocoupler output.
The characteristics of 0 are as shown at point B. The resistance value R2 is smaller than the normal value R1, and the current value is larger.
The transistor 9 is made conductive and the light emitting diode 8 is turned on. Therefore, it is possible to notify of an abnormality in the motor 1 of the ventilation fan.
発明の効果
以上の実施例の説明からも明らかなように本発明によれ
ば、温度ヒユーズの溶断の異常現象を、この温度ヒユー
ズに並列に接続したフォトカプラ入力となる逆並列接続
の発光ダイオードで検出し、フォトカプラ出力のＣｄｓ
抵抗体の抵抗の変化をトランジスタで検出し、トランジ
スタのコレクタに接続された発光ダイオードを点灯させ
ることによって、換気扇のモータの異常を表示すること
ができるという効果が得られる。Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, the abnormal phenomenon of melting of a temperature fuse can be prevented by using an anti-parallel connected light emitting diode which serves as a photocoupler input connected in parallel to the temperature fuse. Cds detected and photocoupler output
By detecting a change in the resistance of the resistor using a transistor and lighting up a light emitting diode connected to the collector of the transistor, it is possible to obtain an effect that an abnormality in the motor of the ventilation fan can be indicated.
第１図は本発明の一実施例による換気扇の異常表示装置
の電気回路図、第２図は同フォトカプラ出力のＣｄｓ抵
抗体の特性曲線図、第３図は従来の換気扇の表示装置の
電気回路図である。
１・・・・・・換気扇のモータ、３・・・・・・温度ヒ
ユーズ、６・・・・・・発光ダイオード、６・・・・・
・整流ダイオード、７．１１，１２・・・・・・抵抗、
８・・・・・・発光ダイオード、９・・・・・・トラン
ジスタ、１０・・・・・・Ｃｄｓ抵抗体。Fig. 1 is an electric circuit diagram of an abnormality display device for a ventilation fan according to an embodiment of the present invention, Fig. 2 is a characteristic curve diagram of the Cds resistor of the photocoupler output, and Fig. 3 is an electrical circuit diagram of a conventional display device for a ventilation fan. It is a circuit diagram. 1... Ventilation fan motor, 3... Temperature fuse, 6... Light emitting diode, 6...
・Rectifier diode, 7.11, 12...Resistance,
8... Light emitting diode, 9... Transistor, 10... Cds resistor.
Claims (1)
の温度ヒューズに並列に抵抗とフォトカプラ入力となる
互いに逆並列接続の発光ダイオード接続した検出部と、
前記換気扇のモータに並列に整流ダイオードと抵抗、発
光ダイオード、トランジスタのコレクタ、エミッタを直
列に接続するとともに前記整流ダイオードのカソードと
前記トランジスタのベースの間にフォトカプラ出力とな
るＣｄｓ抵抗体と前記トランジスタのベースとエミッタ
の間に抵抗を接続した表示部とからなる換気扇の異常表
示装置。A thermal fuse connected in series to the motor of the ventilation fan, and a detection section connected to a light emitting diode connected in anti-parallel to each other, which serves as a resistor and photocoupler input in parallel to the thermal fuse.
A rectifier diode, a resistor, a light emitting diode, a collector and an emitter of a transistor are connected in series in parallel to the motor of the ventilation fan, and a Cds resistor serving as a photocoupler output between the cathode of the rectifier diode and the base of the transistor and the transistor. An abnormality display device for a ventilation fan, consisting of a display section with a resistor connected between the base and emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19002186A JPS6346325A (en) | 1986-08-13 | 1986-08-13 | Abnormality display device for ventilating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19002186A JPS6346325A (en) | 1986-08-13 | 1986-08-13 | Abnormality display device for ventilating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6346325A true JPS6346325A (en) | 1988-02-27 |
Family
ID=16251050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19002186A Pending JPS6346325A (en) | 1986-08-13 | 1986-08-13 | Abnormality display device for ventilating fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6346325A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009171923A (en) * | 2008-01-28 | 2009-08-06 | Matsuyama Plow Mfg Co Ltd | System for informing motor operation state of agricultural work vehicle |
-
1986
- 1986-08-13 JP JP19002186A patent/JPS6346325A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009171923A (en) * | 2008-01-28 | 2009-08-06 | Matsuyama Plow Mfg Co Ltd | System for informing motor operation state of agricultural work vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5669086B2 (en) | Hybrid relay | |
| JP2004009825A (en) | Lighting fixture apparatus for vehicle | |
| GB2124410A (en) | Heater control device | |
| KR950007442B1 (en) | Overcurrent detector | |
| WO2011006411A1 (en) | Dc fan fault detecting device and method with alarm | |
| KR100523555B1 (en) | Apparatus for driving light emitting diode for signal lamp | |
| JPS6346325A (en) | Abnormality display device for ventilating fan | |
| CN206743613U (en) | Fire-fighting emergency headlamp tool light source failure detection and overheating protection circuit | |
| JP2665567B2 (en) | Disconnection detection circuit | |
| JP2532513Y2 (en) | Thermoelectric element failure detection device | |
| JP6141463B2 (en) | lighting equipment | |
| KR890000581Y1 (en) | Control circuit for detection of heater short line using neon lamp | |
| JPH0641396U (en) | Motor control circuit | |
| JP2011192684A (en) | Led device and lighting device | |
| CN211481491U (en) | Relay control circuit, drive circuit and electrical equipment | |
| JPS6053830B2 (en) | solar water heater | |
| CN2198141Y (en) | Multifunction automobile electron adjuster | |
| JPS593312Y2 (en) | temperature display device | |
| JP2000164376A (en) | Heater control/protection circuit | |
| SU1127018A1 (en) | Device for indicating fuse blow-out | |
| KR930004431Y1 (en) | Disconnecting detecting circuit in temperature sensor | |
| JP2575045Y2 (en) | AC power loss detection circuit | |
| JPH0139640Y2 (en) | ||
| JPS5854691Y2 (en) | temperature detection circuit | |
| JPH05282989A (en) | Electric current breaking circuit |