JPH01118045A - Driving controller for fan of ventilating fan and the like - Google Patents
Driving controller for fan of ventilating fan and the likeInfo
- Publication number
- JPH01118045A JPH01118045A JP27665387A JP27665387A JPH01118045A JP H01118045 A JPH01118045 A JP H01118045A JP 27665387 A JP27665387 A JP 27665387A JP 27665387 A JP27665387 A JP 27665387A JP H01118045 A JPH01118045 A JP H01118045A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- fan
- pollution
- degree
- drive
- 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
- 238000003915 air pollution Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 39
- 238000011109 contamination Methods 0.000 claims description 27
- 230000007423 decrease Effects 0.000 claims description 21
- 238000009423 ventilation Methods 0.000 claims description 13
- 230000003111 delayed effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000004887 air purification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Ventilation (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的］
（産業上の利用分野）
本発明は、空気の汚染度を検出してファンを駆動制御す
る換気扇等のファン駆動制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a fan drive control device for a ventilation fan or the like that detects the degree of air pollution and controls the drive of the fan.
（従来の技術）
従来より、換気扇とか空気清浄機においては、白°毒ガ
スとか煙の発生による汚染空気の汚染度を検出する汚染
度検出手段を備え、この汚染度検出手段からの出力され
る汚染度検出に基いてファンを駆動制御するようにした
ものがある。而して、この種換気し１等におけるファン
駆動制御装置は、上記汚染度検出手段の他に、この汚染
度検出手段から出力される汚染度検出値を基準値と比較
して基準値以上となったときに駆動開始指令信号を出力
する比較回路と、この比較回路において汚染度検出値が
基準値を下回ったときに設定された一定時間計時動作を
開始しタイムアツプにより駆動停止指令信号を出力する
タイマ回路と、前記駆動開始指令信号に基きファンを駆
動し前記駆動停止指令信号に基き該ファンの駆動を停止
する駆動回路とを備えた構成である。従って、空気の汚
染度が基準値以にとなったときにファンが駆動されて換
気運転（あるいは空気清浄運転）が開始され、汚染度検
出値が基準値を下回るとタイマ回路による一定の設定時
間（いわゆる遅延時間）経過後にそのファンが停止１−
されるようになっている。(Prior Art) Conventionally, ventilation fans and air purifiers have been equipped with a pollution level detection means for detecting the pollution level of contaminated air due to the generation of white poisonous gas or smoke, and the pollution level output from this pollution level detection means has been provided. There is a device that controls the drive of a fan based on temperature detection. Therefore, in addition to the above-mentioned contamination degree detection means, the fan drive control device in this type of ventilation system compares the contamination degree detection value outputted from the contamination degree detection means with a reference value to determine whether it is equal to or higher than the reference value. A comparison circuit that outputs a drive start command signal when the detection value of the pollution degree falls below the reference value, and a comparison circuit that starts timing operation for a set fixed period of time when the detected level of contamination falls below the reference value, and outputs a drive stop command signal when the time is up. This configuration includes a timer circuit and a drive circuit that drives the fan based on the drive start command signal and stops driving the fan based on the drive stop command signal. Therefore, when the air pollution level is below the standard value, the fan is activated and ventilation operation (or air purification operation) is started, and when the pollution level detection value falls below the standard value, the timer circuit is set for a certain period of time. The fan stops after the (so-called delay time) has elapsed1-
It is now possible to do so.
（発明が解決しようとする問題点）
ところが、」二連のものでは、汚染度検出値が基準値を
下回った時点からのファン駆動遅延時間を一定時間に定
めているため、有毒ガスとか煙の発生量や、部屋の広さ
、汚染空気の発生位置と汚染度検出手段の配置位置との
関係等によっては、汚染空気の残存量に比してファン駆
動遅延時間が短くて汚染空気が部屋に残ったり、逆に汚
染空気の残存量に比してファン駆動遅延時間が長くてフ
ァンが無駄に遅延駆動されて電力消費量が増加したりす
る問題があった。(Problem to be Solved by the Invention) However, in the dual series system, the fan drive delay time from the point when the detected pollution level falls below the standard value is set to a certain period of time, so it is difficult to detect toxic gas or smoke. Depending on the amount generated, the size of the room, the relationship between the location of the contaminated air and the location of the pollution level detection means, etc., the fan drive delay time may be short compared to the remaining amount of contaminated air, causing contaminated air to enter the room. Conversely, there is a problem in that the fan drive delay time is long compared to the remaining amount of contaminated air, and the fan is needlessly driven with a delay, resulting in an increase in power consumption.
本発明は−に記・ＩＣ情に鑑みてなされたものであり、
その［１的は、汚染空気の残存量に応じた遅延時間でフ
ァンを遅延駆動できて、汚染空気を確実に除去でき、し
かもファンを無駄に遅延駆動することもない換気扇等の
ファン駆動制御装置を提供するにある。The present invention has been made in view of the IC circumstances described in -.
The first is a fan drive control device for ventilation fans, etc. that can drive the fan with a delay time that corresponds to the remaining amount of contaminated air, can reliably remove contaminated air, and does not needlessly drive the fan with a delay. is to provide.
［発明の構成］
（問題点を解決するための手段）
本発明は、次の点に４！； ｌ”ｌ してなされたもの
である。即ち、ファンを遅延駆動する場合、残存する汚
染空気が換気あるいは空気浄化によって除去されるのに
要する時間（汚染空気の除去所要時間）は、その汚染度
の減少変化率によって判定することがＩｌｌ能である。[Structure of the Invention] (Means for Solving the Problems) The present invention has the following points 4! In other words, when the fan is operated with a delay, the time required for the remaining contaminated air to be removed by ventilation or air purification (the time required for removing contaminated air) is It is possible to judge by the decreasing rate of change in degree.
つまり、汚染度の減少変化率が大のときには汚染空気に
対する単位時間当りの汚染空気除去はが大であって汚染
空気の除去所要時間も短く、そして減少変化率が小とな
る程該除去所要時間も長くなる。従って、その汚染空気
の汚染度減少変化率をもって遅延時間を設定すれば、そ
の遅延時間と１−述の除去所要時間とが略一致すること
となり、汚染空気の除去に過不足のない遅延時間を設定
できることになる。In other words, when the rate of decrease in the degree of pollution is large, the removal of contaminated air per unit time is large and the time required to remove the contaminated air is short, and as the rate of decrease is small, the time required to remove the contaminated air is short. is also longer. Therefore, if the delay time is set based on the rate of decrease in the degree of contamination of the contaminated air, the delay time and the removal time described in 1-1 will approximately match, and the delay time will be just the right amount to remove the contaminated air. It will be possible to set it.
而して、本発明は、換気等のために駆動されるファンと
、空気の汚染度を検出してその検出値を出力する汚染度
検出手段と、この汚染度検出手段からの汚染度検出値が
基準値以上に変化したときにファン駆動開始指令信号を
出力し汚染度検出値が基準値を下回ったときに計時動作
開始指令信号を出力する比較回路と、前記汚染度検出手
段からの汚染度検出値に基いて汚染度減小時における汚
染度変化率を演算しその汚染度変化率が小となる程遅延
時間を長く設定する演算回路と、前記計時動作開始指令
信号に基いて前記演算回路による設定遅延時間で計時動
作を開始しタイムアツプにより駆動停止指令信号を出力
するタイマ回路と、前記比較回路からの駆動開始指令信
号に基き前記ファンを駆動し前記タイマ回路からの駆動
停止ヒ指令信号に基いて該ファンの駆動を停止する駆動
回路とを具備して成るものである。Thus, the present invention provides a fan driven for ventilation, etc., a pollution degree detection means for detecting the degree of air pollution and outputting the detected value, and a pollution degree detection value from the pollution degree detection means. a comparator circuit that outputs a fan drive start command signal when the pollution level detection value changes to a reference value or more, and outputs a timing operation start command signal when the pollution level detection value falls below the reference value; an arithmetic circuit that calculates a rate of change in contamination degree when the degree of contamination decreases based on the detected value, and sets a longer delay time as the rate of change in contamination degree becomes smaller; a timer circuit that starts a timing operation at a set delay time and outputs a drive stop command signal when time is up; and a timer circuit that drives the fan based on a drive start command signal from the comparison circuit and based on a drive stop command signal from the timer circuit. and a drive circuit for stopping the drive of the fan.
（作用）
比較回路は、汚染度検出手段からの汚染度検出値が基準
値以−にとなったときに駆動開始指令信号を出力し、駆
動回路は、この駆動開始指令信号に基いてファンを駆動
する。これにて、汚染空気が排気あるいは浄化されて除
去される。而して、ファン駆動により汚染空気の残存量
が減少してゆく。この場合もその汚染度が汚染度検出手
段により検出され、又、演算回路は、汚染度の減小時に
おける汚染度変化率を演算しその汚染度変化率が小とな
る程遅延時間を長く設定する。又、比較回路は、汚染度
検出値が基準値を下回ったときに計時動作開始指令信号
を出力する。而して、タイマ回路は、この計時動作開始
指令信号に基いて前記演算回路による設定遅延時間で計
時動作を開始し、そしてタイムアツプすると駆動停止指
令信号を出力する。この結果駆動回路がその駆動停止指
令信号に基いてファンの駆動を停止する。つまり、ファ
ンは、演算回路により設定され遅延時間で遅延駆動され
た後に停止する。この場合、汚染空気の除去所要時間と
この設定遅延時間が略一致するから、過不足のない遅延
時間で汚染空気を除去できるようになる。(Function) The comparison circuit outputs a drive start command signal when the pollution level detection value from the pollution level detection means is equal to or higher than the reference value, and the drive circuit starts the fan based on this drive start command signal. drive This removes contaminated air by exhausting or purifying it. As a result, the remaining amount of contaminated air decreases as the fan is driven. In this case as well, the degree of contamination is detected by the degree of contamination detection means, and the arithmetic circuit calculates the rate of change in degree of contamination when the degree of contamination decreases, and sets the delay time to be longer as the rate of change in degree of contamination decreases. . Further, the comparison circuit outputs a timing operation start command signal when the detected pollution degree value is less than the reference value. Then, the timer circuit starts a timekeeping operation based on this timekeeping operation start command signal with a delay time set by the arithmetic circuit, and outputs a drive stop command signal when the timer expires. As a result, the drive circuit stops driving the fan based on the drive stop command signal. That is, the fan is delayed-driven by the delay time set by the arithmetic circuit and then stopped. In this case, since the time required for removing contaminated air and this set delay time substantially match, the contaminated air can be removed with just the right delay time.
（実施例） 以下本発明の一実施例につき図面を参照して説明する。(Example) An embodiment of the present invention will be described below with reference to the drawings.
まず、第１図において、１は例えば換気扇本体に組込ま
れて換気のために駆動されるファンであり、これは、フ
ァンモータ２と羽根３とを有して成る。４はを毒ガスと
か煙の濃度といった汚染度を検出する汚染度検出手段で
あり、これは、その汚染度に応じた検出値りを出力して
比較回路５゜記憶手段６及び演算回路７に与える。比較
回路５は汚染度検出手段４からの検出値りと、基準値設
定回路８から与えられる汚染度に対する基準値ＤＯとを
比較し、その検出値りが基準値Ｄ０以上となったときに
駆動開始指令信号Ｆｓを出力して駆動回路９に与え、又
、検出値りが基準値Ｄｏを下回ると計時動作開始指令信
号Ｔｓを出力してタイマ回路１０に与える。＝Ｌ記記憶
手段６は汚染度検出手段４からの検出値りを所定の周期
ｔｏで逐次読込み、最新の検出値Ｄ（これを検出値Ｄａ
と称する）をメモリエリアＭｌに記憶し、前頭に記憶さ
れた検出値Ｄ（これを検出値Ｄｂと称する）は別のメモ
リエリアＭ２に移動記憶する。演算回路７は、前記周期
【０毎に１．に記記憶手段６における最新の検出値Ｄａ
を前回の検出値Ｄｂから減算（Ｄｂ−Ｄａ）Ｌ、その減
算値Ｖが正（Ｄｂ＞Ｄａ）のときに、つまり、汚染度検
出値りが減小するときに、そのＶを周期ｔｏで除算して
変化率（Ｖ／ｃｏ）を算出し、この変化率がら遅延時間
Ｔを蒲算して設定する。この場合、その遅延時間Ｔの演
算式を
Ｔ−α／ （Ｖ／ｌｏ ＞とじている。αは遅延時間決
定のために適宜定めた定数であり、上記式かられかるよ
うに、遅延時間Ｔは変化率（Ｖ／ｌｏ）と反比例する関
係で定められ、即ち、変化率が小となる程遅延時間Ｔを
長く設定する。このようにして設定された遅延時間Ｔは
適宜デジタル値されてタイマ回路１０に与えられる。タ
イマ回路１゜は前記比較回路５から計時動作開始指令信
号Ｔｓが１．ｉ、えられると、その時点の遅延時間Ｔで
計時動作を開始しそしてタイムアツプしたところで駆動
停止指令信号Ｆｅを出力して駆動回路９に与える。First, in FIG. 1, reference numeral 1 denotes a fan that is built into, for example, a ventilation fan body and driven for ventilation, and includes a fan motor 2 and blades 3. 4 is a contamination level detection means for detecting the degree of contamination such as the concentration of poisonous gas or smoke; this outputs a detected value corresponding to the degree of contamination and provides it to the comparator circuit 5, the storage means 6, and the arithmetic circuit 7. . The comparator circuit 5 compares the detection value from the pollution degree detection means 4 with the reference value DO for the pollution degree given from the reference value setting circuit 8, and starts driving when the detection value exceeds the reference value D0. A start command signal Fs is outputted and given to the drive circuit 9, and when the detected value falls below the reference value Do, a timing operation start command signal Ts is outputted and given to the timer circuit 10. = L The storage means 6 sequentially reads the detection value from the contamination degree detection means 4 at a predetermined period to, and stores the latest detection value D (this is the detection value Da).
) is stored in the memory area Ml, and the detected value D stored at the beginning (referred to as the detected value Db) is moved and stored in another memory area M2. The arithmetic circuit 7 calculates 1. The latest detected value Da in the storage means 6 is recorded in
is subtracted from the previous detected value Db (Db-Da)L, and when the subtracted value V is positive (Db>Da), that is, when the detected contamination level decreases, the V is calculated with the period to. The rate of change (V/co) is calculated by dividing, and the delay time T is calculated and set from this rate of change. In this case, the calculation formula for the delay time T is T-α/(V/lo > is determined in inverse proportion to the rate of change (V/lo), that is, the smaller the rate of change, the longer the delay time T is set. When the timer circuit 10 receives the timing operation start command signal 1.i from the comparator circuit 5, it starts the timing operation with the delay time T at that point, and when the time is up, it issues a drive stop command. A signal Fe is output and given to the drive circuit 9.
駆動回路９は比較回路５から駆動開始指令信号ＦＳが１
３．えられるとファンモータ２に通電してファン１を駆
動し、Ｘ１タイマ回路１０から駆動停止指令信号Ｆｅが
ｌ＋えられるとファンモータ２を断電して該ファン１の
駆動を停止１−する。The drive circuit 9 receives the drive start command signal FS of 1 from the comparison circuit 5.
3. When the power supply is received, the fan motor 2 is energized to drive the fan 1, and when the drive stop command signal Fe is received from the X1 timer circuit 10, the fan motor 2 is de-energized and the drive of the fan 1 is stopped 1-.
１−記構成の作用を述べる。部屋内に空気汚染が発生し
た場合、第２図（ａ）に示すように汚染度検出手段４に
よる汚染度検出値りは］二昇する。而してその検出値り
が基準値Ｄｏ以上となると比較回路５から駆動開始指令
信号Ｆｓが出力されて駆動回路９に与えられるから、こ
の駆動回路９によってファン１が駆動される。この検出
値りは最新の検出値Ｄａが記憶手段６のメモリエリアＭ
ｌに順次記憶されると共に前回の検出値Ｄａがメモリエ
リアＭ２に移動記憶される。この後、ファン１の駆動に
よって汚染空気が排出即ち除去されてゆくと、検出値り
が減小するようになり、そして演算回路ｌＯによりその
変化率（Ｖ／１０）が算出されると共に、遅延時間Ｔが
逐次演算されて設定される。1- The operation of the configuration described above will be described. When air pollution occurs in the room, the pollution degree detection value by the pollution degree detection means 4 increases by two, as shown in FIG. 2(a). When the detected value exceeds the reference value Do, the drive start command signal Fs is outputted from the comparator circuit 5 and applied to the drive circuit 9, so that the drive circuit 9 drives the fan 1. The latest detection value Da is the memory area M of the storage means 6.
1, and the previous detected value Da is moved and stored in the memory area M2. After that, as the contaminated air is discharged or removed by driving the fan 1, the detected value decreases, and the arithmetic circuit 10 calculates the rate of change (V/10) and delays Time T is calculated and set sequentially.
面して、検出値りが基準値Ｄｏを下回ると比較回路５か
ら計時動作開始指令信号Ｔｓが出力されてタイマ回路１
０に与えられ、タイマ回路１ｏはこの時点で設定されて
いる遅延時間Ｔで計時動作を開始し、そしてタイムアツ
プ（遅延時間Ｔ経過）したところで駆動停止指令信号Ｆ
ｅを出力して駆動回路９に与え、これにて、ファン１の
駆動が停止される。When the detected value falls below the reference value Do, the comparator circuit 5 outputs a timing operation start command signal Ts, and the timer circuit 1
0, the timer circuit 1o starts timing operation with the delay time T set at this point, and when the time is up (delay time T elapses), the timer circuit 1o outputs the drive stop command signal F.
e is outputted and given to the drive circuit 9, and the drive of the fan 1 is thereby stopped.
ここで、第３図（ａ）では検出値りの減小変化率が第２
図（ａ）の場合よりも小である場合を示しており、この
場合には遅延時間Ｔは第２図（ａ）の場合よりも長く設
定される。Here, in Fig. 3(a), the rate of decrease in the detected value is the second
This shows a case where the delay time T is smaller than that in FIG. 2(a), and in this case, the delay time T is set longer than in the case of FIG. 2(a).
このような本実施例によれば、ファン１の駆動に対する
遅延時間Ｔを汚染度検出値りの減小変化率が小となる程
長く設定し、その設定された遅延時間Ｔでファン１を遅
延駆動するようにしたので、汚染空気を確実に除去でき
、しかもファン１を無駄に遅延駆動することもなくし得
る。即ち、ファン１を遅延駆動する場合、残存する汚染
空気がファン１の駆動によって除去されるのに要する時
間（除去所要時間）は、その汚染度の減少変化率によっ
て判定することが可能である。つまり、汚染度の減少変
化率が大のときには単位時間当りの汚染空気除去はが大
であって汚染空気の除去所要時間も短く、そして減少変
化率が小となる程」―述の除去所要時間も長くなる。換
言すれば、遅延時間Ｔを汚染度検出値りの減小変化率が
小となる程長くなるように設定することにより、その遅
延時間Ｔは実際の除去所要時間と略一致する。従って、
上記構成とした本実施例によれば、汚染空気の除去に過
不足のない遅延時間Ｔでファン１を遅延駆動でき、この
結果、汚染空気が部屋に残ることをなくし得ると共に、
ファン１の駆動を無駄に長延化してしまうこともなく、
よって、汚染空気を確実にしかも電力消費量の無駄を来
たすこともなく除去できる。According to this embodiment, the delay time T for driving the fan 1 is set to be longer as the rate of decrease in the detected pollution level becomes smaller, and the fan 1 is delayed by the set delay time T. Since the fan 1 is driven, contaminated air can be reliably removed, and the fan 1 can be prevented from being driven with unnecessary delay. That is, when the fan 1 is driven in a delayed manner, the time required for the remaining contaminated air to be removed by driving the fan 1 (removal time) can be determined based on the rate of decrease in the degree of contamination. In other words, when the rate of decrease in the degree of pollution is large, the amount of contaminated air removed per unit time is large and the time required to remove the contaminated air is short; and the smaller the rate of decrease is, the time required for removal. is also longer. In other words, by setting the delay time T to become longer as the rate of decrease in the detected contamination value decreases, the delay time T substantially matches the actual time required for removal. Therefore,
According to this embodiment having the above configuration, the fan 1 can be driven with a delay time T that is just enough to remove contaminated air, and as a result, it is possible to prevent contaminated air from remaining in the room.
The drive of fan 1 is not unnecessarily prolonged.
Therefore, contaminated air can be removed reliably and without wasting power consumption.
尚１，１：記実施例では、汚染度検出値りの減Ｉド変化
率を求めるについて、基準値り。直前の二つの検出値（
Ｄａ、Ｄｂ）をサンプリングデータとしたが、そのサン
プリングデータとしては二つ以上であってもよい。Note 1, 1: In the embodiment described above, the standard value is used to determine the rate of change in decrement of the detected contamination level. The previous two detected values (
Da, Db) are used as the sampling data, but the sampling data may be two or more.
その他、本発明は上記実施例に限定されるものではなく
、例えば換気扇の他にも空気清浄機にも適用できる等、
要旨を逸脱しない範囲内で種々変更して実施できるもの
である。In addition, the present invention is not limited to the above embodiments, and can be applied to air purifiers as well as ventilation fans, etc.
Various modifications may be made without departing from the spirit of the invention.
［発明の効果］
本発明は以」−の記述にて明らかなように、換気等のた
めに駆動されるファンと、空気の汚染度を検出してその
検出値を出力する汚染度検出手段と、この汚染度検出手
段からの汚染度検出値が基準値量１−に変化したときに
ファン駆動開始指令信号を出力し汚染度検出値が基準値
を下回ったときに計時動作開始指令信号を出力する比較
回路と、前記汚染度検出手段からの汚染度検出値に基い
て汚染度減小時における汚染度変化率をｔｒＡ算しその
汚染度変化率が小となる程近延時間を長く設定する演算
回路と、前記計時動作開始指令信号に基いて前記演算回
路による設定遅延時間で計時動作を開始しタイムアツプ
により駆動停止指令信号を出力するタイマ回路と、前５
己比較回路からの駆動開始指令信号に基き前記ファンを
駆動し前記タイマ回路からの駆動停止１ユ指令信号に基
いて該ファンの駆動を停止する駆動回路とを具備して成
るものであり、これにて、汚染空気の残存量に応じた遅
延時間でファンを遅延駆動できて、汚染空気の除去を確
実に行ない得、しかもファンを無駄に遅延駆動すること
もなくて電力消費量も抑えることができるいった優れた
効果を奏する。[Effects of the Invention] As is clear from the description below, the present invention comprises a fan driven for ventilation, etc., and a pollution level detection means for detecting the air pollution level and outputting the detected value. , outputs a fan drive start command signal when the pollution level detection value from the pollution level detection means changes to a reference value amount of 1-, and outputs a timing operation start command signal when the pollution level detection value falls below the reference value. and an arithmetic circuit that calculates the rate of change in contamination degree trA when the degree of contamination decreases based on the detected value of degree of contamination from the degree of contamination detection means, and sets the near-delay time to be longer as the rate of change in degree of contamination decreases. , a timer circuit that starts a timing operation at a set delay time by the arithmetic circuit based on the timing operation start command signal and outputs a drive stop command signal when time-up;
and a drive circuit that drives the fan based on a drive start command signal from the self-comparison circuit and stops driving the fan based on a drive stop command signal from the timer circuit. , the fan can be driven with a delay according to the remaining amount of contaminated air, ensuring the removal of contaminated air, and also reducing power consumption by not needlessly driving the fan with a delay. It produces excellent effects.
図面は本発明の一実施例を示し、第１図は電気的構成を
示すブロック図、第２図は検出値変化及びファンモータ
の通断電状況を示す図、第３図は検出値の減小変化率が
異なる場合の第２図相当図である。
図中、１はファン、２はファンモータ、４は汚染度検出
手段、５は比較回路、７は演算回路、９は駆動回路、１
０はタイマ回路である。
ｊＰ １ 図The drawings show one embodiment of the present invention, and Fig. 1 is a block diagram showing the electrical configuration, Fig. 2 is a diagram showing changes in detected values and energization/disconnection status of the fan motor, and Fig. 3 shows decreases in detected values. FIG. 2 is a diagram corresponding to FIG. 2 when the small change rate is different. In the figure, 1 is a fan, 2 is a fan motor, 4 is a pollution level detection means, 5 is a comparison circuit, 7 is an arithmetic circuit, 9 is a drive circuit, 1
0 is a timer circuit. jP 1 figure
Claims (1)
を検出してその検出値を出力する汚染度検出手段と、こ
の汚染度検出手段からの汚染度検出値が基準値以上に変
化したときにファン駆動開始指令信号を出力し汚染度検
出値が基準値を下回ったときに計時動作開始指令信号を
出力する比較回路と、前記汚染度検出手段からの汚染度
検出値に基いて汚染度減小時における汚染度変化率を演
算しその汚染度変化率が小となる程遅延時間を長く設定
する演算回路と、前記計時動作開始指令信号に基いて前
記演算回路による設定遅延時間で計時動作を開始しタイ
ムアップにより駆動停止指令信号を出力するタイマ回路
と、前記比較回路からの駆動開始指令信号に基き前記フ
ァンを駆動し前記タイマ回路からの駆動停止指令信号に
基いて該ファンの駆動を停止する駆動回路とを具備して
成る換気扇等のファン駆動制御装置。1. A fan that is driven for ventilation, etc., a pollution degree detection means that detects the degree of air pollution and outputs the detected value, and a pollution degree detection value from this pollution degree detection means that changes beyond the standard value. a comparator circuit that outputs a command signal to start driving the fan when the detection value of the pollution level is lower than a reference value, and a comparison circuit that outputs a command signal to start clocking operation when the detection value of the pollution level falls below the reference value; an arithmetic circuit that calculates the rate of change in the degree of pollution when the degree of pollution decreases and sets a longer delay time as the rate of change in the degree of contamination decreases; and a timer that performs timekeeping with the delay time set by the arithmetic circuit based on the timing operation start command signal. a timer circuit that starts the drive and outputs a drive stop command signal when time is up; and a timer circuit that drives the fan based on the drive start command signal from the comparison circuit and drives the fan based on the drive stop command signal from the timer circuit. A fan drive control device for a ventilation fan, etc., comprising a drive circuit that stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27665387A JPH01118045A (en) | 1987-10-30 | 1987-10-30 | Driving controller for fan of ventilating fan and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27665387A JPH01118045A (en) | 1987-10-30 | 1987-10-30 | Driving controller for fan of ventilating fan and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01118045A true JPH01118045A (en) | 1989-05-10 |
Family
ID=17572452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27665387A Pending JPH01118045A (en) | 1987-10-30 | 1987-10-30 | Driving controller for fan of ventilating fan and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01118045A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5084659A (en) * | 1989-06-07 | 1992-01-28 | Matsushita Electric Industrial Co., Ltd. | Method of operation of air cleaner |
-
1987
- 1987-10-30 JP JP27665387A patent/JPH01118045A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5084659A (en) * | 1989-06-07 | 1992-01-28 | Matsushita Electric Industrial Co., Ltd. | Method of operation of air cleaner |
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