JPH05212231A - Aid cleaner - Google Patents

Aid cleaner

Info

Publication number
JPH05212231A
JPH05212231A JP1978192A JP1978192A JPH05212231A JP H05212231 A JPH05212231 A JP H05212231A JP 1978192 A JP1978192 A JP 1978192A JP 1978192 A JP1978192 A JP 1978192A JP H05212231 A JPH05212231 A JP H05212231A
Authority
JP
Japan
Prior art keywords
gas sensor
air
output
control means
value
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
JP1978192A
Other languages
Japanese (ja)
Inventor
Shunichiro Tanaka
俊一郎 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1978192A priority Critical patent/JPH05212231A/en
Publication of JPH05212231A publication Critical patent/JPH05212231A/en
Pending legal-status Critical Current

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  • Ventilation (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

PURPOSE:To contrive to prevent erroneous setting of the reference of a gas sensor when someone smokes during the time of unstable output at the initial stage of energizing of the gas sensor. CONSTITUTION:Output of a gas sensor 1 for detecting the soiling of air is inputted to a control means 5 to control the startup and shutdown of a cleaner body and the revolution of a fan motor 6. The control means 5 is operated so that an output value of the gas sensor 1 which was able to be taken in the past when the least fouling of air occurred in the stable state may be stored in a nonvolatile memory 4 which holds the content of memory even when power source is off. And, by using the value to set the first reference when the power source for an air cleaner body is closed, correct operation is performed even someone begins to smoke immediately after the user energizes the air cleaner body.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、空気の汚れを検知する
ガスセンサの出力により運転開始、停止およびファンモ
−タの回転数を制御する空気清浄器に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier for controlling the start and stop of operation and the rotation speed of a fan motor by the output of a gas sensor for detecting dirt on the air.

【0002】[0002]

【従来の技術】従来、この種の空気清浄器は図6に示す
ような構成が一般的であった。以下、その構成について
説明する。
2. Description of the Related Art Conventionally, an air purifier of this type generally has a structure as shown in FIG. The configuration will be described below.

【0003】図に示すように、ガスセンサ1は、室内の
空気の汚れ度合の検知するもので、抵抗2を直列に接続
して電源3に接続している。この抵抗2の端子電圧V0
の変化により、清浄器本体の運転開始、停止およびファ
ンモ−タ(図示せず)の回転数を制御するようにしてい
る。図7(a)(b)は、抵抗2の端子電圧V0の変化とファ
ンモ−タの回転数(風量)との関係を示しており、ガス
センサ1のある空気中の出力レベルVrを基準とし、室
内の空気の汚れ度合をその基準レベルからの相対的な変
化量によりあらかじめ定められたレベルVL、VHと比
較し、それに応じてファンモ−タの回転数、すなわち風
量をLo,Hiなどのように自動的に制御していた。
As shown in the figure, a gas sensor 1 is for detecting the degree of contamination of air in a room, and a resistor 2 is connected in series to a power source 3. Terminal voltage V0 of this resistor 2
By changing the above, the start and stop of the operation of the purifier body and the rotation speed of the fan motor (not shown) are controlled. FIGS. 7 (a) and 7 (b) show the relationship between the change in the terminal voltage V0 of the resistor 2 and the rotation speed (air volume) of the fan motor. The output level Vr in the air with the gas sensor 1 is used as a reference, The air pollution level in the room is compared with levels VL and VH which are predetermined by the relative change amount from the reference level, and the rotation number of the fan motor, that is, the air volume is changed to Lo, Hi, etc. according to the levels. It was controlled automatically.

【0004】[0004]

【発明が解決しようとする課題】このような従来の空気
清浄器では、ガスセンサ1は、一般に図8に示すよう
に、通電後その出力V0が安定するまで一定の時間TR
が必要である。そのために、一定時間後の安定になった
ときの出力を最初の基準値Vrとして設定し、そのレベ
ルからの相対的な変化量により室内の空気の汚れ度合を
検知して、自動運転を行っていた。しかし、使用者が空
気清浄器本体に通電した後すぐに喫煙を始めた場合、ガ
スセンサ1の出力が不安定な時間中に室内の空気が汚さ
れると、その基準値がその空気の汚れに応じた値に設定
されることになり、正常な自動運転ができなくなるとい
う問題を有していた。
In such a conventional air purifier, as shown in FIG. 8, the gas sensor 1 generally has a constant time TR until its output V0 becomes stable after energization.
is necessary. Therefore, the output when the temperature becomes stable after a certain period of time is set as the first reference value Vr, the relative degree of change from the level is detected to detect the degree of contamination of the air in the room, and automatic operation is performed. It was However, when the user starts smoking immediately after the air purifier body is energized, if the indoor air is polluted during the time when the output of the gas sensor 1 is unstable, the reference value depends on the contamination of the air. It has been set to a different value, and there is a problem that normal automatic operation cannot be performed.

【0005】本発明は上記課題を解決するもので、ガス
センサの通電初期の不安定出力時間中に喫煙された場合
のガスセンサの基準値の誤設定を防ぐことを目的として
いる。
The present invention has been made to solve the above problems, and an object of the present invention is to prevent erroneous setting of the reference value of the gas sensor when the gas sensor is smoked during the unstable output time at the initial stage of energization.

【0006】[0006]

【課題を解決するための手段】本発明は上記目的を達成
するために、空気の汚れを検知するガスセンサと、前記
ガスセンサの出力により清浄器本体の運転開始、停止お
よびファンモ−タの回転数を制御する制御手段と、電源
をオフしても記憶内容を保持する不揮発性メモリとを備
え、前記制御手段は、前記ガスセンサの安定時の過去取
り得た最も空気の汚れ度合の小さいときの出力値を前記
不揮発性メモリに記憶するようにし、その値を電源投入
時の基準値として自動運転を行うようにしたことを第1
の課題解決手段としている。
In order to achieve the above object, the present invention provides a gas sensor for detecting dirt on the air, and an output of the gas sensor for starting and stopping the operation of the purifier body and rotating the fan motor. Control means for controlling, and a non-volatile memory that retains the stored contents even when the power is turned off, the control means, when the gas sensor is stable, the output value when the degree of air pollution is the smallest that can be obtained in the past. First, it is stored in the non-volatile memory, and the value is used as a reference value when the power is turned on for automatic operation.
Is used as a means for solving the problem.

【0007】また、制御手段に入力するスイッチとを備
え、前記制御手段は、前記スイッチをオンしたときのガ
スセンサの出力値を前記不揮発性メモリに記憶するよう
にし、その値を電源投入時の基準値として自動運転を行
うようにしたことを第2の課題解決手段としている。
Also, a switch for inputting to the control means is provided, and the control means stores the output value of the gas sensor when the switch is turned on in the nonvolatile memory, and the value is used as a reference when the power is turned on. The second problem solving means is that automatic driving is performed as a value.

【0008】[0008]

【作用】本発明は上記した各課題解決手段により、ガス
センサの通電初期の基準値の設定を不揮発性メモリに記
憶した清浄空気中のガスセンサの出力デ−タにより行う
ことで、通電初期のセンサ出力の不安定期に喫煙などで
室内の空気が汚されても正常な自動運転ができる。
According to the present invention, the output of the gas sensor in the clean air stored in the non-volatile memory sets the reference value of the gas sensor in the initial stage of energization, whereby the sensor output in the initial stage of energization is set. Even if the indoor air is polluted by smoking during the unstable period, normal automatic operation can be performed.

【0009】[0009]

【実施例】以下、本発明の一実施例を図1を参照しなが
ら説明する。なお、従来例と同じ構成のものは同一符号
を付して説明を省略する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted.

【0010】図に示すように、不揮発性メモリ4は、電
源をオフしても記憶内容を保持するもので電源投入時に
最初の基準値を設定する。制御手段5は、ガスセンサ1
の出力と不揮発性メモリ4の記憶内容により清浄器本体
の運転開始、停止およびファンモ−タ6の回転数、運転
時間などを制御する。制御手段5は、空気清浄器本体に
通電後、最初のガスセンサ1による自動運転の基準値は
不揮発性メモリ4に記憶されたデ−タを用いるよう設定
している。
As shown in the figure, the non-volatile memory 4 retains the stored contents even when the power is turned off, and sets the first reference value when the power is turned on. The control means 5 is the gas sensor 1
Output and the contents stored in the non-volatile memory 4 are used to control the start and stop of the purifier body, the rotation speed of the fan motor 6, and the operating time. The control means 5 is set to use the data stored in the non-volatile memory 4 as the reference value for the first automatic operation by the gas sensor 1 after the air purifier body is energized.

【0011】上記構成において図2および図3を参照し
ながら動作を説明すると、ガスセンサ1の出力V0の時
間的変化が図2に示すような場合、通電初期の出力の不
安定な期間TRを除いた時間中の最小値V1を制御手段
5により不揮発性メモリ4にデ−タとして記憶される。
空気清浄器本体が通電を開始されたとき、清浄空気中で
あれば、ガスセンサ1の出力V0は、図3の点線のよう
な変化を示す。このとき、あらかじめ定められた時間T
Rのときのガスセンサ1の出力はV0は、最小値V1と
ほぼ近い値を示す。このため、この時点では空気が清浄
と判断し、その状態に応じて設定された自動運転を行
う。時間TR以後、制御手段5は、最小値V1を基準に
設定されたその基準レベルからの相対的な変化量によ
り、あらかじめ定められたレベルVL、VHと比較し、
それに応じてファンモ−タ6の回転数、すなわち風量を
Lo,Hiなどのように制御する。基準値Vrは、必ず
しも固定値ではなく、以後の自動運転の中で制御手段5
により状況に応じて設定されて行く。
The operation of the above structure will be described with reference to FIGS. 2 and 3. In the case where the time variation of the output V0 of the gas sensor 1 is as shown in FIG. The minimum value V1 during the predetermined time is stored as data in the non-volatile memory 4 by the control means 5.
When the air purifier body is energized and is in clean air, the output V0 of the gas sensor 1 changes as shown by the dotted line in FIG. At this time, the predetermined time T
As for the output of the gas sensor 1 at R, V0 shows a value which is almost close to the minimum value V1. Therefore, at this time, it is determined that the air is clean, and the automatic operation set according to the state is performed. After the time TR, the control means 5 compares with the predetermined levels VL and VH according to the relative change amount from the reference level set with the minimum value V1 as a reference,
In response to this, the rotation speed of the fan motor 6, that is, the air volume is controlled as Lo, Hi, or the like. The reference value Vr is not always a fixed value, but is controlled by the control means 5 during the subsequent automatic operation.
Will be set according to the situation.

【0012】つぎに、空気清浄器本体に通電後すぐに喫
煙を始めた場合、ガスセンサ1の出力V0は、図3の実
線で示すように変化する。通電後、最初の基準値Vr
は、不揮発性メモリ4に記憶されているデ−タV1を基
準値Vrとして用いるため、空気清浄器本体は、時間T
Rのガスセンサ1の出力V3と基準値Vr=V1の差ま
たは比により自動運転を開始し、時間TR以後は、ガス
センサ1の出力V0に応じて制御手段5により、基準値
Vrにより設定されるレベルVL,VHに応じた自動運
転を行う。
Next, when smoking starts immediately after the air purifier body is energized, the output V0 of the gas sensor 1 changes as shown by the solid line in FIG. The first reference value Vr after energization
Uses the data V1 stored in the non-volatile memory 4 as the reference value Vr.
The automatic operation is started by the difference or ratio between the output V3 of the R gas sensor 1 and the reference value Vr = V1, and after the time TR, the level set by the reference value Vr by the control means 5 according to the output V0 of the gas sensor 1. Automatic operation is performed according to VL and VH.

【0013】つぎに、本発明の他の実施例を図4を参照
しながら説明する。なお、上記実施例と同じ構成のもの
は同一符号を付して説明を省略する。
Next, another embodiment of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted.

【0014】図に示すように、スイッチ7は制御手段5
に入力し、制御手段5に蓄積したデ−タを不揮発性メモ
リ4に記憶させる信号を与えるものである。制御手段5
は、空気清浄器本体に通電後、最初のガスセンサ1によ
る自動運転の基準値は、不揮発性メモリ4のに記憶され
たデ−タを用いるよう設定されている。
As shown in the figure, the switch 7 is a control means 5
Is input to the nonvolatile memory 4 and the data stored in the control means 5 is stored in the nonvolatile memory 4. Control means 5
Is set to use the data stored in the non-volatile memory 4 as the reference value for the first automatic operation by the gas sensor 1 after the air purifier body is energized.

【0015】上記構成おいて図5を参照しながら動作を
説明すると、図5は空気清浄器本体の生産時のエ−ジン
グ時間0〜T4のガスセンサ1の出力V0の時間的変化
を示したものである。この中で、通電初期の出力の不安
定な期間TRを除いた時間中の最小値V1が制御手段5
に蓄積され、スイッチ7を押すことにより不揮発性メモ
リ4にデ−タとして記憶される。この不揮発性メモリ4
のデ−タを通電時、最初の基準値として用い、以下、上
記実施例と同様な動作で空気清浄器本体は自動運転され
る。
The operation of the above structure will be described with reference to FIG. 5. FIG. 5 shows a temporal change of the output V0 of the gas sensor 1 during the aging time 0 to T4 during the production of the air purifier body. Is. Among these, the minimum value V1 during the time excluding the unstable period TR of the output at the initial stage of energization is the control means 5
Is stored in the nonvolatile memory 4 as data by pressing the switch 7. This non-volatile memory 4
The data is used as the first reference value when energized, and the air purifier body is automatically operated by the same operation as in the above embodiment.

【0016】[0016]

【発明の効果】以上の実施例から明らかなように本発明
によれば、空気の汚れを検知するガスセンサと、前記ガ
スセンサの出力により清浄器本体の運転開始、停止およ
びファンモ−タの回転数を制御する制御手段と、電源を
オフしても記憶内容を保持する不揮発性メモリとを備
え、前記制御手段は、前記ガスセンサの安定時の過去取
り得た最も空気の汚れ度合の小さいときの出力値を前記
不揮発性メモリに記憶するようにし、その値を電源投入
時の基準値として自動運転を行うようにしたから、過去
のデ−タの最小値を用いることで、きわめて簡便に空気
清浄器本体に通電した後、すぐに喫煙を始めた場合にも
室内の空気の汚れに応じた自動運転ができる。
As is apparent from the above embodiments, according to the present invention, the gas sensor for detecting the dirt of the air and the output of the gas sensor can be used to start and stop the operation of the purifier body and the rotational speed of the fan motor. Control means for controlling, and a non-volatile memory that retains the stored contents even when the power is turned off, the control means, when the gas sensor is stable, the output value when the degree of air pollution is the smallest that can be obtained in the past. Since the value is stored in the non-volatile memory and the value is set to the reference value when the power is turned on, the automatic operation is performed. Even if you start smoking immediately after turning on the power, you can automatically operate according to the dirt in the room air.

【0017】また、制御手段に入力するスイッチとを備
え、前記制御手段は、前記スイッチをオンしたときのガ
スセンサの出力値を前記不揮発性メモリに記憶するよう
にし、その値を電源投入時の基準値として自動運転を行
うようにしたから、生産時に清浄空気中でエ−ジングを
行い、そのときのデ−タを用いることで、空気清浄器本
体に通電した後、すぐに喫煙を始めた場合にも、確実に
室内の空気の汚れに応じた自動運転ができる。
Also, a switch for inputting to the control means is provided, and the control means stores the output value of the gas sensor when the switch is turned on in the non-volatile memory, and the value is a reference when the power is turned on. If you start smoking immediately after performing aging in clean air at the time of production and using the data at that time because the automatic operation is performed as the value, the air purifier body is energized. In addition, it is possible to reliably perform automatic operation according to the air pollution in the room.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の空気清浄器のブロック回路
FIG. 1 is a block circuit diagram of an air cleaner according to an embodiment of the present invention.

【図2】同空気清浄器のガスセンサの出力の時間的変化
を示す図
FIG. 2 is a diagram showing a temporal change in the output of the gas sensor of the air purifier.

【図3】同空気清浄器の通電初期のガスセンサの出力を
示す図
FIG. 3 is a diagram showing an output of the gas sensor in the initial stage of energization of the air purifier.

【図4】本発明の他の実施例の空気清浄器のブロック回
路図
FIG. 4 is a block circuit diagram of an air purifier according to another embodiment of the present invention.

【図5】同空気清浄器のガスセンサの出力の時間的変化
を示す図
FIG. 5 is a diagram showing a temporal change in the output of the gas sensor of the air purifier.

【図6】従来のガスセンサの出力信号を得る基本構成図FIG. 6 is a basic configuration diagram for obtaining an output signal of a conventional gas sensor.

【図7】(a)(b) 同ガスセンサにより自動運転を行う空
気清浄器の動作特性図
[Fig. 7] (a) (b) Operating characteristic diagram of an air purifier that automatically operates with the same gas sensor

【図8】同ガスセンサの通電初期の出力を示す図FIG. 8 is a diagram showing the output of the gas sensor at the beginning of energization.

【符号の説明】[Explanation of symbols]

1 ガスセンサ 4 不揮発性メモリ 5 制御手段 6 ファンモータ 1 gas sensor 4 non-volatile memory 5 control means 6 fan motor

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 空気の汚れを検知するガスセンサと、前
記ガスセンサの出力により清浄器本体の運転開始、停止
およびファンモ−タの回転数を制御する制御手段と、電
源をオフしても記憶内容を保持する不揮発性メモリとを
備え、前記制御手段は、前記ガスセンサの安定時の過去
取り得た最も空気の汚れ度合の小さいときの出力値を前
記不揮発性メモリに記憶するようにし、その値を電源投
入時の基準値として自動運転を行うようにした空気清浄
器。
1. A gas sensor for detecting dirt on the air, a control means for controlling the start and stop of the operation of the purifier main body and the rotation speed of the fan motor by the output of the gas sensor, and a stored content even when the power is turned off. And a nonvolatile memory that holds the output value, wherein the control unit stores the output value when the gas sensor is stable and has the smallest air pollution degree obtained in the past when the gas sensor is stable, and stores the output value in the nonvolatile memory. An air purifier that automatically operates as a reference value for the time.
【請求項2】 空気の汚れを検知するガスセンサと、前
記ガスセンサの出力により清浄器本体の運転開始、停止
およびファンモ−タの回転数を制御する制御手段と、電
源をオフしても記憶内容を保持する不揮発性メモリと、
前記制御手段に入力するスイッチとを備え、前記制御手
段は、前記スイッチをオンしたときのガスセンサの出力
値を前記不揮発性メモリに記憶するようにし、その値を
電源投入時の基準値として自動運転を行うようにした空
気清浄器。
2. A gas sensor for detecting dirt on the air, a control means for controlling the start and stop of the operation of the purifier body and the rotation speed of the fan motor by the output of the gas sensor, and the stored contents even when the power is turned off. Non-volatile memory to hold,
A switch for inputting to the control means, wherein the control means stores the output value of the gas sensor when the switch is turned on in the non-volatile memory, and the value is automatically operated as a reference value when the power is turned on. Air purifier designed to do.
JP1978192A 1992-02-05 1992-02-05 Aid cleaner Pending JPH05212231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1978192A JPH05212231A (en) 1992-02-05 1992-02-05 Aid cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1978192A JPH05212231A (en) 1992-02-05 1992-02-05 Aid cleaner

Publications (1)

Publication Number Publication Date
JPH05212231A true JPH05212231A (en) 1993-08-24

Family

ID=12008873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1978192A Pending JPH05212231A (en) 1992-02-05 1992-02-05 Aid cleaner

Country Status (1)

Country Link
JP (1) JPH05212231A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008036494A (en) * 2006-08-03 2008-02-21 Sharp Corp Air purification apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008036494A (en) * 2006-08-03 2008-02-21 Sharp Corp Air purification apparatus

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