JP2002039627A - Space heater having air-cleaning function - Google Patents
Space heater having air-cleaning functionInfo
- Publication number
- JP2002039627A JP2002039627A JP2000222049A JP2000222049A JP2002039627A JP 2002039627 A JP2002039627 A JP 2002039627A JP 2000222049 A JP2000222049 A JP 2000222049A JP 2000222049 A JP2000222049 A JP 2000222049A JP 2002039627 A JP2002039627 A JP 2002039627A
- Authority
- JP
- Japan
- Prior art keywords
- odor
- detection
- value
- air
- sensor
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 178
- 238000001514 detection method Methods 0.000 claims abstract description 158
- 230000035945 sensitivity Effects 0.000 claims description 101
- 238000000034 method Methods 0.000 claims description 32
- 239000004065 semiconductor Substances 0.000 claims description 9
- 230000007257 malfunction Effects 0.000 abstract description 21
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 41
- 238000011109 contamination Methods 0.000 description 38
- 238000002485 combustion reaction Methods 0.000 description 29
- 238000009423 ventilation Methods 0.000 description 19
- 239000000428 dust Substances 0.000 description 15
- 230000007423 decrease Effects 0.000 description 14
- 238000003915 air pollution Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000014509 gene expression Effects 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000006399 behavior Effects 0.000 description 4
- 230000001877 deodorizing effect Effects 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000003905 indoor air pollution Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Landscapes
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、臭いセンサの検出
出力から臭い成分の存在を検知する臭い検知手段を用い
て室内の空気清浄を図る空気清浄機能付き暖房装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating apparatus having an air purifying function for purifying indoor air using odor detecting means for detecting the presence of an odor component from the detection output of an odor sensor.
【0002】[0002]
【従来の技術】室内の空気清浄を図る空気清浄機は塵埃
センサや臭いセンサを備え、これらセンサが室内の塵埃
や悪臭を検出すると自動的にファンを運転させたり、或
いは塵埃や悪臭を検出したことを表示により使用者に知
らせ、この表示を見た使用者の手動操作によりファンの
能力を切り換え、集塵フィルタや脱臭フィルタにより塵
埃や悪臭を除去するようになっている。2. Description of the Related Art An air purifier for purifying indoor air is provided with a dust sensor or an odor sensor. When these sensors detect dust or odor in the room, the fan is automatically operated or the dust or odor is detected. This is notified to the user by a display, the capability of the fan is switched by a manual operation of the user who sees the display, and dust and an odor are removed by a dust collecting filter and a deodorizing filter.
【0003】この種の空気清浄機に用いられる臭いセン
サは主にタバコの臭い成分を検出対象(臭い成分中の水
素を主に対象とする)とし、一般的には金属酸化物によ
り形成された半導体ガスセンサが多く用いられている。An odor sensor used in this type of air purifier mainly detects odor components of tobacco (mainly hydrogen in odor components) and is generally formed of a metal oxide. Semiconductor gas sensors are widely used.
【0004】ここで、空気清浄機における一般的な臭い
センサの臭い検知方法について説明する。臭いセンサと
して使用される半導体ガスセンサは臭い成分に反応する
と抵抗値が減少するという特性があること、また曝され
る環境(雰囲気の空気成分、温度、湿度など)により抵
抗値が異なることより、抵抗値の変化度合いにより臭い
成分の存在を検知し空気の汚れを判定する方法が一般的
である。Here, a method of detecting an odor by a general odor sensor in an air purifier will be described. Semiconductor gas sensors used as odor sensors have the characteristic that their resistance decreases when they react to odor components, and the resistance varies depending on the environment (air component, temperature, humidity, etc. of the atmosphere) to which they are exposed. In general, a method of detecting the presence of an odor component based on the degree of change in the value to determine air contamination is used.
【0005】図8において、臭いセンサにおける空気の
汚れ判定方法について説明する。横軸に時間、縦軸に抵
抗値、抵抗変化率、汚れ判定レベルを示す。センサの抵
抗値をrs、変化率の基準となる基準抵抗値をRで示
す。また汚れは抵抗値の変化率(rs/R)の値で判定
する。電源ON後、センサに内蔵されたヒータが安定す
るまでのT0経過以降でのセンサの信号を有効とする。[0005] Referring to FIG. 8, a method of judging air contamination by the odor sensor will be described. The horizontal axis indicates time, and the vertical axis indicates resistance, resistance change rate, and stain determination level. The resistance value of the sensor is represented by rs, and the reference resistance value as a reference of the rate of change is represented by R. Stain is determined by the value of the rate of change in resistance (rs / R). After the power is turned on, the signal of the sensor after the lapse of T0 until the heater built in the sensor is stabilized is made valid.
【0006】基準抵抗値Rは次のように更新する。初期
T0では、抵抗値rsを基準抵抗値Rとする。抵抗値r
sが増加(清浄方向に変化)して基準抵抗値Rより大き
くなる時は、基準抵抗値Rは抵抗値rsで更新される。
また、喫煙などにより空気汚染(Tx)が生じて汚れを
判定するT1迄は、時間T経過毎に基準抵抗値RはT間
での抵抗値rsの最大値(最も清浄な値)で更新され
る。また、T1から汚れがなくなったことを判定したT
2迄の間、基準抵抗値RはT1時の値に固定される。セ
ンサの感度を良化するため、空気がよりきれいな時の値
を基準抵抗値Rとすること、また一日の中の温湿度変化
による抵抗値rsの変化をキャンセルするため、一定時
間T毎に基準値を決め直すことが基準抵抗値Rの更新の
考え方となっている。The reference resistance value R is updated as follows. In the initial T0, the resistance value rs is set to the reference resistance value R. Resistance value r
When s increases (changes in the cleaning direction) and becomes larger than the reference resistance value R, the reference resistance value R is updated with the resistance value rs.
Until T1 when air pollution (Tx) occurs due to smoking or the like and the contamination is determined, the reference resistance value R is updated with the maximum value (cleanest value) of the resistance value rs between T every time T elapses. You. In addition, T1 that has determined that the dirt has been removed from T1.
Until 2, the reference resistance value R is fixed to the value at T1. In order to improve the sensitivity of the sensor, the value when the air is more clean is used as the reference resistance value R, and in order to cancel the change in the resistance value rs due to the temperature and humidity changes during the day, every fixed time T Redetermining the reference value is the idea of updating the reference resistance value R.
【0007】一般的な空気清浄機においては、更新時間
Tは15分〜20分程度となっている。汚れの判定は、
抵抗変化率(rs/R)より判定し、変化率が閾値A−
1となった時点で汚れレベル1、閾値A−2となった時
点で汚れレベル2とし、閾値の数で汚れ判定レベルの度
数を決めることができる。一般的な空気清浄機において
は、最初に汚れを判定する閾値は、0.85〜0.8程
度となっている。In a general air purifier, the renewal time T is about 15 to 20 minutes. Determination of dirt,
Judging from the resistance change rate (rs / R), the change rate is equal to the threshold A-
The stain level is set to 1 when the threshold value becomes 1, and the stain level is set to 2 when the threshold value becomes A-2, and the frequency of the stain determination level can be determined by the number of threshold values. In a general air purifier, a threshold value for initially determining dirt is about 0.85 to 0.8.
【0008】[0008]
【発明が解決しようとする課題】ところで、この種の半
導体ガスセンサは、温度の変化や湿度の影響を受けてそ
の検知感度が変化するという特性を持っている。そのた
め空気清浄機単独では特に問題はないが、最近提供され
ている空気清浄機能付き暖房装置では、暖房開始時に周
囲の空気の急速な温度上昇の影響を受けて臭いセンサの
検知感度が変化(空気汚染側に反応)し、空気清浄部を
誤動作させるという問題があった。また石油或いはガス
を燃焼させる加熱手段を用いている開放型の温風暖房部
を備えた暖房装置にあっては、燃焼時に発生する水分に
よる湿度の影響を受けて温度上昇の場合と同様に臭いセ
ンサの検知感度が変化(空気汚染側に反応)し、空気清
浄部を誤動作させるという問題があった。また石油或い
はガスの燃焼排ガス成分に半導体ガスセンサが直接反応
して、空気清浄部を誤動作させるという問題があった。Incidentally, this kind of semiconductor gas sensor has a characteristic that its detection sensitivity changes under the influence of temperature change and humidity. For this reason, there is no particular problem with the air purifier alone, but with a heating device with an air purifying function that has recently been provided, the detection sensitivity of the odor sensor changes due to the rapid temperature rise of the surrounding air at the start of heating (air There is a problem that the air purifying section malfunctions by reacting to the contaminated side. Further, in a heating apparatus having an open-type hot air heating unit using a heating means for burning oil or gas, the odor is affected by the humidity due to moisture generated during combustion, as in the case of temperature rise. There has been a problem that the detection sensitivity of the sensor changes (reacts to the air-contaminated side) and the air purifying unit malfunctions. In addition, there is a problem that the semiconductor gas sensor directly reacts to a combustion exhaust gas component of oil or gas and causes an air cleaning unit to malfunction.
【0009】上記のような空気清浄機能付き暖房装置の
従来例において、図9に示す温調機能付きのガス温風暖
房機で暖房運転した際の空気清浄部の臭いセンサの挙動
について説明する。横軸に時間、縦軸に抵抗値、抵抗変
化率、暖房機器の運転による室温変化を示す。ここで、
基準抵抗値R、抵抗変化率(rs/R)、汚れ判定方法
は図8の従来例に基づいて説明した内容に準ずる。The behavior of the odor sensor of the air cleaning unit when the heating operation is performed with the gas warm air heater having the temperature control function shown in FIG. 9 in the conventional example of the heating apparatus having the air cleaning function as described above will be described. The horizontal axis indicates time, and the vertical axis indicates resistance, resistance change rate, and room temperature change due to operation of the heating device. here,
The reference resistance value R, the rate of change in resistance (rs / R), and the stain determination method are based on the contents described based on the conventional example of FIG.
【0010】暖房機器運転による室温変化のチャートで
は、臭いセンサが汚れ判定を行う中、T1において暖房
運転を開始し、T2において設定温度tsに達してい
る。T2以降は設定温度tsを保つよう暖房量を調節し
ながら暖房運転を継続している。その中T3において換
気のため部屋のドアや窓を開け、T4において閉め、T
4以降は暖房運転を継続していく。それに伴い臭いセン
サの抵抗値rsは、暖房開始のT1から設定温度tsに
達する間に大きく減少(汚染方向に変化)していく。こ
れは暖房開始により室温が短期間に大きく変化したこ
と、暖房機器が設定温度に達する迄は最大能力で運転す
るため、ガス燃焼時に排出される水分や排ガスの影響が
大きいことにより生じている。暖房機器が温度調節して
いるT2からT3迄の間は抵抗値rsは減少するものの
その度合いは小さい。これは設定温度tsがほぼ一定に
保たれていること、温度調節で暖房能力を絞るためガス
燃焼量が減少することによるものである。[0010] In the chart of the change in room temperature due to the operation of the heating equipment, the heating operation is started at T1 while the odor sensor performs the dirt determination, and the set temperature ts is reached at T2. After T2, the heating operation is continued while adjusting the heating amount so as to maintain the set temperature ts. Among them, the doors and windows of the room are opened for ventilation at T3, and closed at T4.
From 4 onward, the heating operation is continued. Accordingly, the resistance value rs of the odor sensor greatly decreases (changes in the direction of contamination) from T1 at the start of heating to the set temperature ts. This is caused by the fact that the room temperature greatly changes in a short time after the start of heating, and that the heating equipment operates at the maximum capacity until it reaches the set temperature, so that the influence of moisture and exhaust gas discharged during gas combustion is great. During the period from T2 to T3 when the temperature of the heating device is adjusted, the resistance value rs decreases but its degree is small. This is due to the fact that the set temperature ts is kept substantially constant, and the amount of gas combustion is reduced because the heating capacity is reduced by adjusting the temperature.
【0011】また、T3にて換気をすると外部の冷たい
乾燥した新鮮な空気が臭いセンサに触れるためセンサ雰
囲気の環境が一変して抵抗値rsが増加(清浄方向に変
化)し、その後の換気を止めたT4ではセンサ雰囲気の
環境が換気前の室内の状態に馴染み、抵抗値rsが換気
前の値近くまで減少(汚染方向に変化)していく。この
抵抗値rsの変化により、抵抗変化率(rs/R)は、
暖房開始後のT1からT2迄の間、換気終了後のT4後
に大きな減少方向の変化を示し、一般的な空気清浄機の
汚れを判定する閾値0.8を超え、暖房をしたことや換
気をしたことで空気の汚れ有りと誤判定してしまう。In addition, when ventilation is performed at T3, the outside environment of the sensor atmosphere changes completely because the cold, dry and fresh air comes into contact with the odor sensor, and the resistance value rs increases (changes in the clean direction). At the stopped T4, the environment of the sensor atmosphere adapts to the state of the room before ventilation, and the resistance value rs decreases (changes in the direction of contamination) to near the value before ventilation. Due to this change in the resistance value rs, the resistance change rate (rs / R) becomes
During the period from T1 to T2 after the start of the heating, and after T4 after the end of the ventilation, a large change in the decreasing direction is shown. As a result, it is erroneously determined that the air is dirty.
【0012】また温度調節しながら暖房運転するT2か
らT3迄の間でも、抵抗変化率(rs/R)は減少方向
の変化があり、臭いによる空気の汚れが小さい時でも閾
値との余裕度が少なくなり、わずかな臭いの検知により
汚れ有りと誤判定する可能性がある。Also, during the period from T2 to T3 in which the heating operation is performed while controlling the temperature, the resistance change rate (rs / R) changes in a decreasing direction, and the margin with respect to the threshold value is small even when the air contamination due to odor is small. There is a possibility that erroneous determination that there is dirt is made by detecting a slight odor.
【0013】[0013]
【課題を解決するための手段】本発明は上記の課題を解
決するために、臭いセンサの検出出力から臭い成分の存
在を検知する臭い検知手段を備えた空気清浄機能付き暖
房装置において、臭い検知手段が暖房部の運転状態に併
せて臭い検知感度を切り換えるようにし、そして暖房部
運転時には検知感度を低下することを特徴とするもので
ある。In order to solve the above-mentioned problems, the present invention relates to a heating apparatus having an air purifying function provided with an odor detecting means for detecting the presence of an odor component from a detection output of an odor sensor. It is characterized in that the means switches the odor detection sensitivity in accordance with the operation state of the heating unit, and reduces the detection sensitivity during the operation of the heating unit.
【0014】上記発明によれば、臭いセンサ感度が鋭敏
化(空気汚染側に変化)する暖房運転時に生じる急激な
室内温度変化、湿度変化、燃焼排ガスなどの外乱要素に
よる影響を、臭い検知手段の検知感度を低下させること
により、本来検出すべき臭い成分以外の外乱要素に対す
る臭いセンサの反応に余裕をもたせることで、暖房運転
時の空気清浄部の誤動作を防止することができる。According to the above-mentioned invention, the influence of disturbance factors such as a sudden change in room temperature, a change in humidity, and a combustion exhaust gas which occur during the heating operation in which the sensitivity of the odor sensor becomes sharp (changes to the side of air pollution) is determined by the odor detection means. By lowering the detection sensitivity, it is possible to prevent the odor sensor from reacting to disturbance elements other than the odor component to be originally detected, thereby preventing malfunction of the air cleaning unit during the heating operation.
【0015】[0015]
【発明の実施の形態】上記目的を達成するために請求項
1の発明では、半導体ガスセンサからなる臭いセンサ
と、この臭いセンサの検出出力から臭い成分の存在を検
知する臭い検知手段と、この臭い検知手段の検知に基づ
いて運転される空気清浄用のファンとを備えた空気清浄
部と、室温を検知する温度センサを備えた温風暖房部と
を併設した空気清浄機能付き暖房装置において、前記臭
い検知手段の検知感度は、温風暖房部が停止している間
の第1検知感度と、温風暖房部が運転している間の第2
検知感度とを有し、前記第2検知感度は前記第1検知感
度より感度を低下させていることを特徴とする。この発
明によれば、温風暖房部が停止している間と温風暖房部
が運転している間とでの検知感度を第1、第2検知感度
と別々に設定することができ、暖房運転時は感度を低下
させることで、臭いセンサの出力値が暖房運転時の急激
な温度変化や湿度の影響や排ガス濃度の変化に反応し変
動しても、臭い成分の存在有りと誤検知することなく、
その結果空気清浄部の誤動作を防止することができる。According to the first aspect of the present invention, there is provided an odor sensor comprising a semiconductor gas sensor, odor detection means for detecting the presence of an odor component from the detection output of the odor sensor, and an odor sensor comprising: In a heating device with an air purifying function provided with an air purifying unit including an air purifying fan that is operated based on detection of a detecting unit and a hot air heating unit including a temperature sensor that detects room temperature, The detection sensitivity of the odor detection means includes a first detection sensitivity when the hot air heating unit is stopped and a second detection sensitivity while the hot air heating unit is operating.
And the second detection sensitivity is lower than the first detection sensitivity. According to the present invention, the detection sensitivities during the time when the hot air heating unit is stopped and when the hot air heating unit is operating can be set separately from the first and second detection sensitivities. By lowering the sensitivity during operation, even if the output value of the odor sensor fluctuates in response to sudden changes in temperature, humidity, or changes in exhaust gas concentration during heating operation, it is erroneously detected as the presence of odor components. Without
As a result, malfunction of the air purifying section can be prevented.
【0016】請求項2の発明では、請求項1の発明にお
いて、臭い検知手段の検知により空気清浄用ファンを自
動運転する制御手段を備えることにより、温風暖房部と
空気清浄部とを同時運転している時でも、臭いセンサの
検出した臭い成分をもとに自動的に空気清浄用のファン
の運転を行うことができる。According to a second aspect of the present invention, in the first aspect of the present invention, the hot air heating unit and the air cleaning unit are simultaneously operated by providing control means for automatically operating the air cleaning fan upon detection of the odor detecting means. Even during the operation, the air purifying fan can be automatically operated based on the odor component detected by the odor sensor.
【0017】請求項3の発明では、請求項1の発明にお
いて、臭い検知手段の第2検知感度の検知感度をゼロ
(感度なし)とすることにより、石油やガスの燃焼排ガ
ス成分と臭いセンサの反応成分とが一致した時でも、暖
房運転をきっかけとして臭い成分の存在有りと誤検知す
るのを確実に防止することができる。According to a third aspect of the present invention, in the first aspect of the present invention, the detection sensitivity of the second detection sensitivity of the odor detection means is set to zero (no sensitivity), so that the combustion exhaust gas component of oil or gas and the odor sensor are not detected. Even when the reaction component coincides, it is possible to reliably prevent the erroneous detection of the presence of the odor component due to the heating operation.
【0018】請求項4の発明では、請求項1の発明にお
いて、温風暖房部は温度センサの検知に基づいて室温を
設定温度に保つ温度調節機能を備え、臭い検知手段の検
知感度は、温風暖房部が運転している間において運転開
始から室温が設定温度に達する迄の第3検知感度と、温
風暖房部が運転している間において設定温度に達した以
降の第4検知感度とを有し、前記第3検知感度は前記第
4検知感度より感度を低下させている。According to a fourth aspect of the present invention, in the first aspect of the present invention, the hot air heating section has a temperature adjusting function for maintaining the room temperature at a set temperature based on the detection of the temperature sensor, and the detection sensitivity of the odor detecting means is not high. The third detection sensitivity from the start of operation during the operation of the air heating unit until the room temperature reaches the set temperature, and the fourth detection sensitivity after the temperature reaches the set temperature while the hot air heating unit is operating. And the third detection sensitivity is lower in sensitivity than the fourth detection sensitivity.
【0019】この発明によれば、暖房量(燃料消費量)
が多く、温度・湿度変化が大きい暖房運転開始から設定
温度に達する迄の間と、温調機能で暖房量を絞って運転
し、比較的温度・湿度変化も小さい設定温度に達した以
降とでの検知感度を第3、第4検知感度と別々に設定し
て切り換えられることができ、暖房運転初期の感度(第
3検知感度)を低下させることで、急激な温度変化や湿
度の影響や排ガス濃度の変化に反応して変動しても、臭
い成分の存在有りと誤検知することなく、その結果空気
清浄部の誤動作を防止することができる。且つ設定温度
に達した以降の感度(第4検知感度)を良化させること
で、温風暖房部と空気清浄部との同時運転時においても
臭い成分の検出レベルを改善することができる。According to the present invention, the heating amount (fuel consumption amount)
There is a large amount of change in temperature and humidity from the start of heating operation to the set temperature until the temperature reaches the set temperature, and after the temperature control function operates with the heating amount reduced and the temperature and humidity change reaches the set temperature with relatively small change in temperature and humidity. Can be set and switched separately from the third and fourth detection sensitivities, and by lowering the sensitivity (third detection sensitivity) at the beginning of the heating operation, a sudden temperature change, humidity influence, and exhaust gas Even if it fluctuates in response to a change in the concentration, it is possible to prevent erroneous operation of the air purifying unit without erroneously detecting the presence of an odor component. In addition, by improving the sensitivity (fourth detection sensitivity) after the temperature reaches the set temperature, the detection level of the odor component can be improved even during simultaneous operation of the hot air heating unit and the air cleaning unit.
【0020】請求項5の発明では、請求項4の発明にお
いて、暖房運転初期の感度である第3検知感度の検知感
度をゼロ(感度なし)とすることにより、暖房運転開始
時での急激な温度変化や湿度の影響や排ガス濃度の変化
などの外乱が重なる臭いセンサの反応をなくし、暖房運
転をきっかけとして臭い成分の存在有りと誤検知するの
を確実に防止することができる。According to a fifth aspect of the present invention, in the invention of the fourth aspect, the detection sensitivity of the third detection sensitivity, which is the sensitivity at the beginning of the heating operation, is set to zero (no sensitivity), so that the rapidity at the start of the heating operation. The reaction of the odor sensor in which disturbances such as the influence of temperature change and humidity and the change of exhaust gas concentration overlap can be eliminated, and it is possible to reliably prevent the erroneous detection of the presence of the odor component due to the heating operation.
【0021】請求項6の発明では、請求項1ないし5の
何れかの発明において、臭い検知手段は、臭いセンサの
清浄下での検出値を基準値とし、臭い成分を検出する迄
の間は、前記基準値を所定時間毎に更新しながらこの基
準値を基準として臭いセンサの検出値との変化率を求
め、この変化率と予め設定した閾値とを比較することで
臭い成分の存在を検知し変化率の値で汚れを判定するも
のであって、基準値の更新間隔を前記所定時間よりも短
く設定することにより、前記臭い検知手段の検知感度を
低下させている。According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the odor detecting means uses the detection value of the odor sensor in a clean state as a reference value until the odor component is detected. While the reference value is updated every predetermined time, the rate of change from the detected value of the odor sensor is determined based on the reference value, and the presence of the odor component is detected by comparing the rate of change with a preset threshold value. The determination of the contamination is performed based on the value of the rate of change, and the detection sensitivity of the odor detection unit is reduced by setting the update interval of the reference value shorter than the predetermined time.
【0022】請求項7の発明では、請求項1ないし5の
何れかの発明において、臭い検知手段は、臭いセンサの
清浄下での検出値を基準値とし、臭い成分を検出する迄
の間は、前記基準値を所定時間毎に更新しながらこの基
準値を基準として臭いセンサの検出値との変化率を求
め、この変化率と予め設定した閾値とを比較することで
臭い成分の存在を検知し変化率の値で汚れを判定するも
のであって、前記閾値の設定に余裕を設けることによ
り、前記臭い検知手段の検知感度を低下させている。According to a seventh aspect of the present invention, in any one of the first to fifth aspects of the present invention, the odor detecting means uses the detection value of the odor sensor in a clean state as a reference value and waits until the odor component is detected. While the reference value is updated every predetermined time, the rate of change from the detected value of the odor sensor is determined based on the reference value, and the presence of the odor component is detected by comparing the rate of change with a preset threshold value. Dirt is determined based on the value of the rate of change, and the detection sensitivity of the odor detecting means is reduced by providing a margin for setting the threshold.
【0023】請求項8の発明では、請求項1、2、4ま
たは5の発明において、臭い検知手段は、臭いセンサの
清浄下での検出値を基準値とし、臭い成分を検出する迄
の間は、前記基準値を所定時間毎に更新しながらこの基
準値を基準として臭いセンサの検出値との変化率を求
め、この変化率と予め設定した閾値とを比較することで
臭い成分の存在を検知し変化率の値で汚れを判定し、前
記閾値の設定に余裕を設けることにより、前記臭い検知
手段の検知感度を低下させるものであって、臭い成分を
検出している間に検知感度に切り換わりが生じた時に、
臭いセンサの検出値と検知感度切り換わり後の閾値より
基準値を求めてこの基準値の更新を行っている。In the eighth aspect of the present invention, in the first, second, fourth or fifth aspect, the odor detecting means uses the detection value of the odor sensor in a clean state as a reference value and waits until the odor component is detected. Calculates the rate of change from the detection value of the odor sensor based on the reference value while updating the reference value every predetermined time, and compares the change rate with a preset threshold to determine the presence of the odor component. By detecting and determining dirt with the value of the change rate, by providing a margin for setting the threshold value, the detection sensitivity of the odor detection means is reduced, and the detection sensitivity is reduced while detecting the odor component. When a switch occurs,
The reference value is obtained from the detection value of the odor sensor and the threshold value after the switching of the detection sensitivity, and the reference value is updated.
【0024】この発明によれば、臭いセンサにより臭い
成分を検出中に温風暖房部の運転状態が変化して臭い検
知感度が変化し閾値が切り換わった時でも、臭いセンサ
の検出値と検知感度切り換わり後の閾値より基準値を算
出し更新することにより、切り換わり時点で判定してい
た汚れのレベルを継続して判定することができ、機器の
運転状態の変化による汚れ表示などの状態変化を防止す
ることができる。According to the present invention, even when the odor sensor detects the odor component, the operating state of the warm air heating unit changes, the odor detection sensitivity changes, and the threshold value is switched, the detection value of the odor sensor is detected. By calculating and updating the reference value from the threshold value after the sensitivity switching, the level of dirt determined at the time of switching can be continuously determined, and a state such as a dirt display due to a change in the operating state of the device. Changes can be prevented.
【0025】請求項9の発明では、請求項1ないし5の
何れかの発明において、臭い検知手段は、臭いセンサの
清浄下での検出値を基準値とし、臭い成分を検出する迄
の間は、前記基準値を所定時間毎に更新しながらこの基
準値を基準として臭いセンサの検出値との変化率を求
め、この変化率と予め設定した閾値とを比較することで
臭い成分の存在を検知し変化率の値で汚れを判定するも
のであって、前記基準値よりも臭いセンサの検出値が清
浄になった時は、前記基準値が時定数をもって徐々に臭
いセンサの検出値となるように基準値を更新している。According to a ninth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the odor detecting means uses the detection value of the odor sensor in a clean state as a reference value and waits until the odor component is detected. While the reference value is updated every predetermined time, the rate of change from the detected value of the odor sensor is determined based on the reference value, and the presence of the odor component is detected by comparing the rate of change with a preset threshold value. Then, when the detection value of the odor sensor becomes cleaner than the reference value, the reference value gradually becomes a detection value of the odor sensor with a time constant. The reference value has been updated.
【0026】この発明によれば、基準値をより清浄な値
にすることにより、汚れ(臭い成分)に対してより感度
を良化する。且つ、暖房運転時の換気を行った時の臭い
センサの検出値が一旦清浄側へ変化しまた急激に元の状
態に戻るような挙動に対して、基準値が時定数をもって
徐々に清浄側に更新されるため、換気後に検出値がほぼ
元の値近くに戻っても基準値は大きく清浄な値にまで更
新されておらず、変化率は小さくなり臭い成分有りとの
誤検知とそれに基づいて汚れ有りとの誤判定がなくな
る。これにより暖房運転中の換気などによる空気清浄部
の誤動作を防止することができる。According to the present invention, by setting the reference value to a cleaner value, the sensitivity to dirt (odorous component) is improved. In addition, the reference value gradually changes to the clean side with a time constant for the behavior in which the detection value of the odor sensor at the time of ventilation during the heating operation temporarily changes to the clean side and suddenly returns to the original state. Even if the detected value returns to near the original value after ventilation, the reference value is not updated to a large and clean value, and the rate of change is small. Erroneous determination that there is dirt is eliminated. This can prevent malfunction of the air purifying unit due to ventilation during the heating operation.
【0027】[0027]
【実施例】以下、本発明の実施形態について実施例1か
ら実施例4を示す図面を用いて説明する。Embodiments of the present invention will be described below with reference to the drawings showing Embodiments 1 to 4.
【0028】(実施例1)図1はガスを燃焼させて暖房
を行う温風暖房部と空気清浄部とを併設した開放型暖房
装置からなる実施例1の制御系の回路構成を示すブロッ
ク図である。また図2は実施例1の機構部の概略構成を
示す構成図である。実施例1では、図2に示すように装
置本体1内を上下に略2分して上側に空気清浄部2の機
構要素を、下側に温風暖房部3の機構要素を配置してあ
る。(Embodiment 1) FIG. 1 is a block diagram showing a circuit configuration of a control system of Embodiment 1 comprising an open-type heating apparatus provided with a hot air heating section for heating by burning gas and an air purifying section. It is. FIG. 2 is a configuration diagram illustrating a schematic configuration of the mechanical unit according to the first embodiment. In the first embodiment, as shown in FIG. 2, the inside of the apparatus main body 1 is vertically divided into approximately two parts, and the mechanical element of the air cleaning unit 2 is arranged on the upper side, and the mechanical element of the hot air heating unit 3 is arranged on the lower side. .
【0029】実施例1の温風暖房部3の機構要素は都市
ガスやLPガス等の燃焼ガスを燃焼させるガスバーナ4
からなる燃焼部5と、温風ファン6と、温風ファン6の
駆動モータM1(図1参照)と、装置本体1の裏面に開
口した吸気口7に被着された塵埃フィルタ8とで構成さ
れ、暖房時には温風ファン6を駆動モータM1により回
転させて吸気口7から塵埃フィルタ8を介して燃焼部5
内へ空気を吸い込んで加熱した後、温風ファン6により
装置本体1の正面下部に開口した温風吹き出し口9より
室内へ温風として送り出す。The mechanical element of the hot air heating unit 3 of the first embodiment is a gas burner 4 for burning a combustion gas such as city gas or LP gas.
, A hot air fan 6, a drive motor M1 for the hot air fan 6 (see FIG. 1), and a dust filter 8 attached to an intake port 7 opened on the back surface of the apparatus body 1. During heating, the hot air fan 6 is rotated by the drive motor M1 to drive the combustion unit 5 from the intake port 7 through the dust filter 8.
After the air is sucked into the inside and heated, the warm air is blown into the room by a warm air fan 6 from a warm air outlet 9 opened in the lower front part of the apparatus main body 1.
【0030】一方、空気清浄部2の機構要素は、装置本
体1の正面上部に開口した空気清浄用の吸気口10の内
側に設けた集塵フィルタ11及び脱臭フィルタ12から
なるフィルタ部と、シロッコファンからなる空気清浄用
のファン(以下空清ファンと言う)13と、空清ファン
13の駆動モータM2とからなり、空気清浄時には空清
ファン13を駆動モータM2により回転させて吸気口1
0より室内の空気を吸い込んで空気中の塵埃を集塵フィ
ルタ11により除塵し、また空気中の臭い成分を脱臭フ
ィルタ12で除去し、清浄化した空気を空清ファン13
により装置本体1の上面に開口した空気吹き出し口14
より室内に送り込む。On the other hand, the mechanical elements of the air purifying section 2 include a filter section including a dust collecting filter 11 and a deodorizing filter 12 provided inside an air purifying air inlet 10 opened at an upper front portion of the apparatus main body 1, and a sirocco filter. An air cleaning fan (hereinafter referred to as an air cleaning fan) 13 comprising a fan and a drive motor M2 for the air cleaning fan 13 are rotated.
0, the air in the room is sucked in, the dust in the air is removed by a dust collecting filter 11, and the odor components in the air are removed by a deodorizing filter 12.
Air outlet 14 opened on the upper surface of the apparatus main body 1
Send more indoors.
【0031】上記の空気清浄部2及び温風暖房部3の回
路構成は図1に示すように、温風ファン6用の駆動モー
タM1の駆動部20と、電磁弁や比例弁を有しジョイン
ト部26(図2)からガスバーナ4へ燃料ガスを供給す
る燃料供給部24と、ガスバーナ4を点火する点火部2
5と、サーミスタからなり室温の雰囲気温度(室温)を
検出する温度センサ15と、熱電体からなりガスバーナ
4の燃焼炎の状態から着火や立ち消えを検出する炎検出
センサ18と、空清ファン13用の駆動モータM2の駆
動部21と、室内の塵埃を検知する光電式塵埃センサ1
7と、室内で発生する臭いの原因のガス(例えば煙草の
煙と共に生成される水素ガス成分<以下臭い成分と言う
>)を検知する半導体式ガスセンサからなる臭いセンサ
16と、臭いセンサ16の出力に基づき臭い成分の存在
を検知し、空気の汚れレベルを判定する臭い検知手段2
2と、運転スイッチや室温設定スイッチ等の各種操作ス
イッチ及び室温表示や運転状態を表示する表示器を表示
する表示/操作部19と、商用の交流電源ACを降圧し
且つ平滑して直流電圧Vccを得る直流電源部27と、
マイクロコンピュータからなり装置本体1の信号処理や
制御を後述するように行う制御回路部23とから構成さ
れる。ここで、臭い検知手段22も制御回路部23の一
部に含まれるように構成されている。また、図2に示す
ように温度センサ15を例えば吸気口7近傍に室内に臨
むように、臭いセンサ16や塵埃センサ17を例えば吸
気口10近傍で装置本体1の前面に配置する。As shown in FIG. 1, the circuit configuration of the air purifying section 2 and the hot air heating section 3 includes a driving section 20 of a driving motor M1 for the hot air fan 6, a joint having an electromagnetic valve and a proportional valve. A fuel supply unit 24 for supplying a fuel gas from a unit 26 (FIG. 2) to the gas burner 4, and an ignition unit 2 for igniting the gas burner 4
5, a temperature sensor 15 made of a thermistor and detecting an ambient temperature (room temperature) at room temperature; a flame detection sensor 18 made of a thermoelectric body and detecting ignition or extinguishing from the state of combustion flame of the gas burner 4; Driving unit 21 of driving motor M2 and photoelectric dust sensor 1 for detecting dust in the room
7, an odor sensor 16 composed of a semiconductor type gas sensor for detecting a gas (for example, a hydrogen gas component generated together with tobacco smoke <hereinafter referred to as an odor component>) which causes odor generated indoors, and an output of the odor sensor 16 Detecting means 2 for detecting the presence of an odor component on the basis of the odor component and determining the level of air contamination
2, various operation switches such as an operation switch and a room temperature setting switch, a display / operation unit 19 for displaying a room temperature display and an indicator for displaying an operation state, and a step-down and smoothing of a commercial AC power supply AC to obtain a DC voltage Vcc. DC power supply unit 27 for obtaining
It comprises a microcomputer and a control circuit section 23 which performs signal processing and control of the apparatus main body 1 as described later. Here, the odor detection unit 22 is also configured to be included in a part of the control circuit unit 23. Further, as shown in FIG. 2, an odor sensor 16 and a dust sensor 17 are arranged on the front surface of the apparatus main body 1 near the intake port 10, for example, so that the temperature sensor 15 faces the room near the intake port 7, for example.
【0032】次に実施例1の全体的な動作について簡単
に説明する。温風暖房部3と空気清浄部2は、表示/操
作部19に各々独立に設けられた運転スイッチの操作に
より、温風暖房部3のみ運転、空気清浄部2のみ運転、
温風暖房部3と空気清浄部2が同時に運転するという3
状態の運転パターンが生じる。Next, the overall operation of the first embodiment will be briefly described. The hot air heating unit 3 and the air cleaning unit 2 are operated only by the operation switches provided independently of each other on the display / operation unit 19 to operate only the hot air heating unit 3 and only the air cleaning unit 2.
3 that the hot air heating unit 3 and the air cleaning unit 2 operate simultaneously
A state operating pattern results.
【0033】温風暖房部3は表示/操作部19の運転/
停止操作に基づいて制御回路部23により、その運転と
停止が制御されるようになっており、運転中にあっては
温度センサ15の検出する検出温度が設定温度(目標温
度)となるように燃料供給部24の比例制御弁が制御回
路部23により制御されてガスバーナ4への供給燃料が
制御され、燃焼能力が調節される。The hot air heating section 3 is operated by the display / operation section 19 /
The operation and the stop are controlled by the control circuit unit 23 based on the stop operation. During the operation, the detected temperature detected by the temperature sensor 15 becomes the set temperature (target temperature). The proportional control valve of the fuel supply unit 24 is controlled by the control circuit unit 23 to control the fuel supply to the gas burner 4, and the combustion capacity is adjusted.
【0034】一方、空気清浄部2は表示/操作部19の
運転スイッチがオンされていると、運転待機状態とな
り、臭いセンサ16あるいは塵埃センサ17の検出出力
に基づき制御回路部23により空清ファン13の能力を
自動制御すると共に、空気の汚れの状態を表示/操作部
19に表示する。On the other hand, when the operation switch of the display / operation unit 19 is turned on, the air cleaning unit 2 is in a standby state, and the control circuit unit 23 controls the air cleaning fan 13 based on the detection output of the odor sensor 16 or the dust sensor 17. And automatically displays the state of air contamination on the display / operation unit 19.
【0035】ここで、実施例1に用いる臭いセンサ16
は酸化錫などを主体とする金属酸化物からなる感ガス体
(図示せず)を主構成要素とする半導体ガスセンサから
なる。また臭いセンサ16は感ガス体を加熱するヒータ
(図示せず)を備え、このヒータの通電が制御回路部2
3により制御されることで感ガス体の温度を高温あるい
は低温状態にすることができるようになっている。臭い
センサ16のように主に煙草の煙の除去を目的とするた
めに、煙草が燃焼した際の水素ガスを臭い成分として検
出対象とする場合には高温状態に設定して使用する。Here, the odor sensor 16 used in the first embodiment
Consists of a semiconductor gas sensor mainly composed of a gas-sensitive body (not shown) made of a metal oxide mainly composed of tin oxide or the like. Further, the odor sensor 16 includes a heater (not shown) for heating the gas-sensitive body.
The temperature of the gas-sensitive body can be set to a high or low temperature state by being controlled by the control unit 3. In order to mainly remove smoke from cigarettes as in the case of the odor sensor 16, when hydrogen gas when tobacco is burned is to be detected as an odor component, it is set to a high temperature state and used.
【0036】半導体ガスセンサからなる臭いセンサ16
は、検出対象の臭い成分に曝されるとセンサのもつ抵抗
値が減少する特性を持っている。また臭いセンサ16が
曝される環境(雰囲気の空気成分、温度、湿度)により
抵抗値が異なるため、臭い検知手段22は抵抗値の変化
度合いにより空気の汚れの有無(臭い成分の存在)を検
知し、汚れを判定するようになっている。Odor sensor 16 composed of a semiconductor gas sensor
Has a characteristic that the resistance value of the sensor decreases when exposed to the odor component to be detected. Since the resistance value varies depending on the environment (air component, temperature, humidity) to which the odor sensor 16 is exposed, the odor detection means 22 detects the presence or absence of air contamination (the presence of odor component) based on the degree of change in the resistance value. Then, dirt is determined.
【0037】図3、図4において実施例1の臭いセンサ
16を用いた空気の汚れ判定の方法について説明する。
以下に説明する信号処理や制御は臭い検知手段22によ
り行われ、マイクロコンピュータにより実現される。3 and 4, a method of determining air contamination using the odor sensor 16 according to the first embodiment will be described.
The signal processing and control described below are performed by the odor detection means 22 and are realized by a microcomputer.
【0038】図3は、温風暖房部3が停止し空気清浄部
2のみ運転している時の汚れ判定方法を示すタイムチャ
ート図である。横軸に時間、縦軸に抵抗値、抵抗変化
率、汚れ判定レベルを示す。FIG. 3 is a time chart showing a stain determination method when the warm air heating unit 3 is stopped and only the air cleaning unit 2 is operating. The horizontal axis indicates time, and the vertical axis indicates resistance, resistance change rate, and stain determination level.
【0039】各チャートの概要を説明する。抵抗値を示
すチャートには、センサの抵抗値rs、センサの抵抗値
rsを基に決定した基準抵抗値Rを示す。抵抗変化率φ
は式(1) で表され、0から1の値を取り得る。The outline of each chart will be described. The chart showing the resistance values shows the resistance value rs of the sensor and the reference resistance value R determined based on the resistance value rs of the sensor. Resistance change rate φ
Is represented by equation (1) and can take a value from 0 to 1.
【0040】φ=rs/R‥‥‥‥‥‥‥(1) センサの抵抗値rsは汚染空気に曝されると減少するた
め、この抵抗変化率の値が小さい程汚れの度合いが大き
いと言える。また、汚れの度合いを示す汚れ判定レベル
は、抵抗変化率φと判定閾値を比較し、汚れがどのレベ
ルにあるかを判定する。実施例1では、汚れレベル0
(きれいな状態)から汚れレベル3の4段階で空気の汚
れを判定するため、3水準の判定閾値を用意してある。
汚れレベル0と1の判定は、0から1へは閾値Lc−
1、1から0へは閾値L’c−1で判断し、閾値の大小
関係を式(2) で表す。Φ = rs / R ‥‥‥‥‥‥‥ (1) Since the resistance value rs of the sensor decreases when exposed to contaminated air, the smaller the value of this resistance change rate, the greater the degree of contamination. I can say. Further, the stain determination level indicating the degree of stain is determined by comparing the resistance change rate φ with a determination threshold to determine the level of stain. In the first embodiment, the stain level is 0
In order to judge air stains in four stages of stain level 3 from (clean state), three levels of determination thresholds are prepared.
The dirt levels 0 and 1 are determined from 0 to 1 by the threshold Lc−
From 1 and 1 to 0 are determined by the threshold value L'c-1, and the magnitude relation of the threshold value is expressed by Expression (2).
【0041】 (Lc−1)<(L’c−1)‥‥‥‥‥‥‥(2) 抵抗変化率φが閾値近くで安定した際でも安定して汚れ
レベルを判定するため変化方向で異なった閾値を設定
し、汚れレベルをLEDなどの表示器で表示する場合に
LEDの不要なちらつきを防止する配慮がしてある。抵
抗変化率で0.03〜0.05程度の差があればよい。
また同様に、汚れレベル1と2の判定は、閾値Lc−2
と閾値L’c−2で判断し、汚れレベル2と3の判定
は、閾値Lc−3と閾値L’c−3で判断する。各レベ
ルの閾値は0.05から0.1のレベル差を有し、その
大小関係を式(3) で表す。(Lc−1) <(L′ c−1) ‥‥‥‥‥‥‥ (2) Even when the resistance change rate φ is close to the threshold value and stable, the dirt level is stably determined, so that the dirt level is determined in the change direction. When a different threshold value is set and the stain level is displayed on a display such as an LED, consideration is given to preventing unnecessary flickering of the LED. It is sufficient that there is a difference of about 0.03 to 0.05 in the resistance change rate.
Similarly, the determination of the dirt levels 1 and 2 is based on the threshold Lc-2.
And the threshold value L'c-2, and the dirt levels 2 and 3 are determined by the threshold value Lc-3 and the threshold value L'c-3. The threshold of each level has a level difference of 0.05 to 0.1, and the magnitude relation is expressed by Expression (3).
【0042】 (Lc−1)>(Lc−2)>(Lc−3)‥‥‥‥‥‥‥(3) 抵抗値について更に詳しく説明すると、抵抗値rsは臭
いセンサ16の抵抗値を1または2秒程度の時間毎にサ
ンプリングしてその変化を記述したものである。空気清
浄部2の運転を開始した後、ヒータの温度安定時間T0
経過後の抵抗値rs0から抵抗値を有効とする。喫煙や
調理時に発生するアルコール等により室内の空気汚染
(Tx頃)が発生し抵抗値が大きく減少した様子を示し
ている。(Lc-1)>(Lc-2)> (Lc-3) ‥‥‥‥‥‥‥ (3) To describe the resistance value in more detail, the resistance value rs is determined by setting the resistance value of the odor sensor 16 to 1 Alternatively, the change is described by sampling at intervals of about 2 seconds. After the operation of the air purifying section 2 is started, the heater temperature stabilization time T0
The resistance value is made valid from the resistance value rs0 after the lapse. This shows a state in which indoor air pollution (around Tx) occurs due to alcohol or the like generated during smoking or cooking, and the resistance value is greatly reduced.
【0043】基準抵抗値Rはセンサ抵抗値の変化率を求
める時の基準値であり、次のように決まる。The reference resistance value R is a reference value for determining the rate of change of the sensor resistance value, and is determined as follows.
【0044】まずは、空気がきれいな状態である汚れレ
ベル0においては、初期T0では、抵抗値rs0を基準
抵抗値Rとする。抵抗値rsが増加(空気がきれいにな
っていく方向に変化)し基準抵抗値Rより大きくなる時
は、基準抵抗値Rは抵抗値rsで更新する。抵抗値rs
が減少(汚染方向に変化)し基準抵抗値Rより小さくな
る時は、基準抵抗値Rはそのままとする。また、時間T
c経過毎に基準抵抗値RはTc間での抵抗値rsの最大
値(最もきれいな値)で更新する。Tc経過毎にこれを
繰り返す。これは空気汚染時に汚れの変化を大きく検出
するために基準抵抗値Rを空気がよりきれいな時の抵抗
値にすること、また1日の中の温湿度変化による抵抗値
変化をキャンセルするため、一定時間毎に基準値を決め
直すことが基準抵抗値Rの更新の考え方となっているた
めである。First, at the contamination level 0 where the air is clean, the resistance value rs0 is set to the reference resistance value R in the initial T0. When the resistance value rs increases (changes in a direction in which the air becomes clean) and becomes larger than the reference resistance value R, the reference resistance value R is updated with the resistance value rs. Resistance value rs
Decreases (changes in the direction of contamination) and becomes smaller than the reference resistance value R, the reference resistance value R remains unchanged. Also, the time T
Each time c elapses, the reference resistance value R is updated with the maximum value (the cleanest value) of the resistance value rs between Tc. This is repeated every time Tc elapses. This is because the reference resistance R is set to a resistance value when the air is more clean in order to detect a large change in dirt at the time of air contamination, and a constant value is set in order to cancel the resistance value change due to temperature and humidity changes in a day. This is because redefining the reference value every time is a concept of updating the reference resistance value R.
【0045】次に、空気汚染が発生し汚れを検出した汚
れ判定レベル1以上においては、基準抵抗値Rは汚れ判
定レベル0を判定したT1においての値を保持する。ま
た空気清浄部2の運転により空気汚染が解消し、きれい
な状態の汚れレベル0を判定したT2において基準抵抗
値Rの更新を再開する。T2において抵抗値rsを基準
抵抗値Rとし、T2以降は初期と同様に時間Tc経過毎
に更新を行う。これは空気汚染中のセンサ抵抗値は基準
値にできないためである。Next, when the air pollution occurs and the contamination is detected, the reference resistance value R is maintained at the value at T1 at which the contamination determination level 0 is determined. In addition, the operation of the air purifying unit 2 eliminates air pollution, and the updating of the reference resistance value R is restarted at T2 when the clean soil level 0 is determined. At T2, the resistance value rs is set to the reference resistance value R, and after T2, the update is performed every time the time Tc elapses as in the initial stage. This is because the sensor resistance value during air pollution cannot be set to the reference value.
【0046】図4は、温風暖房部3の運転を開始し空気
清浄部2と同時運転した時の空気の汚れ判定方法を示す
タイムチャート図である。横軸に時間、縦軸に抵抗値、
抵抗変化率、汚れ判定レベルを示す。FIG. 4 is a time chart showing a method for judging air contamination when the operation of the warm air heating unit 3 is started and the air purifying unit 2 is operated at the same time. The horizontal axis is time, the vertical axis is resistance,
It shows the resistance change rate and the stain determination level.
【0047】抵抗値rs、基準抵抗値R、抵抗変化率
φ、判定閾値、汚れ判定レベルの判定方法の概要は、図
3で説明した内容に準じる。基準抵抗値Rの更新方法で
の相違点は、温風暖房部3が運転中は基準抵抗値Rの更
新時間がTdであること。また、温風暖房部3の運転時
点でTdのカウントを開始し、その時の抵抗値rsで基
準抵抗値Rを更新することである。汚れレベルの判定で
の相違点は、空気清浄部2のみ運転時と温風暖房部3と
の同時運転時とで判定閾値が異なることである。判定閾
値が汚れレベル0と1の判定は、閾値Ld−1と閾値
L’d−1であること、同様に汚れレベル1と2の判定
は、閾値Ld−2と閾値L’d−2で判断し、汚れレベ
ル2と3の判定は、閾値Ld−3と閾値L’d−3で判
断することである。更新時間、各判定閾値の条件を式
(4) 、式(5) で表す。The outline of the method of determining the resistance value rs, the reference resistance value R, the resistance change rate φ, the determination threshold value, and the dirt determination level conforms to the contents described in FIG. The difference in the method of updating the reference resistance value R is that the update time of the reference resistance value R is Td while the hot air heating unit 3 is operating. Further, the count of Td is started at the time of operation of the warm air heating unit 3, and the reference resistance value R is updated with the resistance value rs at that time. The difference in the determination of the contamination level is that the determination threshold is different between when only the air cleaning unit 2 is operating and when the simultaneous operation with the hot air heating unit 3 is performed. The determination of the dirt levels 0 and 1 is the threshold Ld-1 and the threshold L'd-1. Similarly, the determination of the dirt levels 1 and 2 is the threshold Ld-2 and the threshold L'd-2. The determination of the stain levels 2 and 3 is based on the threshold Ld-3 and the threshold L'd-3. Expression of update time and condition of each judgment threshold
(4) is represented by equation (5).
【0048】Tc>Td‥‥‥‥‥‥‥(4) (Lc−1)>(Ld−1)‥‥‥‥‥‥‥(5) 次に、温風暖房部3が運転した時の抵抗値rsの挙動に
ついて説明する。温風暖房部3が運転を開始すると、室
内の温度上昇、湿度上昇、燃焼排ガスの濃度増加などの
要因により、あたかも空気が汚染したかのようにセンサ
の抵抗値rsが減少していく。そのために、図3に示し
た温風暖房部3の停止時の汚れ判定の方法では、暖房を
行う毎に空気清浄部2が空気汚染を検出し、複合機とし
て整合性がない動作(いわゆる誤動作)をすることとな
る。そこで図4に示す実施例1では、温風暖房部3との
同時運転においては、温風暖房部3の運転開始時に抵抗
値rsで基準抵抗値Rを更新すること、汚染判定レベル
0時の基準更新時間を空気清浄部2のみ運転時(温風暖
房部3の停止時)より短く設定し、更新までの間に抵抗
値の変化を少なくすること、汚れ判定の閾値を温風暖房
部3の停止時より小さく設定し、温風暖房運転による変
化に対して余裕を持つことにより、誤動作を防ぐことが
できる。言い換えれば、更新時間と閾値の設定を切換え
ることで汚れに対する検知感度を低下させることがで
き、誤動作を防止することができる。Tc> Td ‥‥‥‥‥‥‥ (4) (Lc-1)> (Ld-1) ‥‥‥‥‥‥‥ (5) Next, when the hot air heating unit 3 is operated, The behavior of the resistance value rs will be described. When the hot air heating unit 3 starts operating, the resistance value rs of the sensor decreases as if the air was contaminated due to factors such as an increase in indoor temperature, an increase in humidity, and an increase in the concentration of combustion exhaust gas. For this reason, in the method of determining dirt when the hot air heating unit 3 is stopped shown in FIG. 3, the air purifying unit 2 detects air contamination every time heating is performed, and the multifunction peripheral has an inconsistent operation (so-called malfunction). ). Therefore, in the first embodiment illustrated in FIG. 4, in the simultaneous operation with the hot air heating unit 3, the reference resistance value R is updated with the resistance value rs at the start of the operation of the hot air heating unit 3. The reference update time is set shorter than when only the air cleaning unit 2 is operated (when the hot air heating unit 3 is stopped), the change in the resistance value is reduced before updating, and the threshold value for the dirt determination is set to the hot air heating unit 3. By setting it smaller than that at the time of stop, and having a margin for a change due to the hot air heating operation, malfunction can be prevented. In other words, by switching the setting of the update time and the threshold value, the detection sensitivity to dirt can be reduced, and malfunction can be prevented.
【0049】図4の実施例1においては、Tcは20
分、Tdは10分。またLc−1は0.8、Ld−1は
0.7〜0.6の設定としている。In the first embodiment shown in FIG.
Minutes, Td is 10 minutes. Lc-1 is set to 0.8, and Ld-1 is set to 0.7 to 0.6.
【0050】また、Tc、Lc−1はそのままの定数と
し、空気清浄部2のみ運転時の検知感度を保ちながら、
Tdは0分、またはLd−1は0.0に設定すること
で、温風暖房部3の運転時の検知感度をなくすことがで
きる。実施例1ではガス温風暖房機を説明しているが、
石油を燃焼とした場合には臭いセンサ16が反応する空
気の汚染成分の度合いは増すため、検知感度をなくすこ
とは確実に誤動作を防ぐ手段となる。また臭いセンサ1
6の検出目標を煙草の煙(燃焼時の水素ガス)以外の生
活臭にも対応するセンサを新たに搭載した時、燃焼ガス
の排出成分と臭いセンサ16の検出成分が一致するよう
な場合が生じても、温風暖房部3との同時運転時には検
知感度をなくす(ゼロにする)ことにより誤動作を防止
することができる。臭いセンサ16の検知感度をなくし
た際、実施例1にあるように塵埃センサ17を併せて搭
載することで、温風暖房部3の運転時は塵埃センサ17
で空気の汚れをモニタして空気清浄部2の動作を制御す
ることができる。Tc and Lc-1 are constants as they are, and only the air cleaning unit 2 maintains the detection sensitivity during operation.
By setting Td to 0 minutes or Ld-1 to 0.0, the detection sensitivity at the time of operation of the warm air heating unit 3 can be eliminated. Embodiment 1 describes a gas warm air heater,
In the case of burning oil, the degree of the pollution component of the air to which the odor sensor 16 reacts increases, and thus, eliminating the detection sensitivity is a means for reliably preventing malfunction. Also smell sensor 1
When a sensor corresponding to a living odor other than cigarette smoke (hydrogen gas at the time of combustion) is newly installed as the detection target of No. 6, the emission component of the combustion gas may coincide with the detection component of the odor sensor 16. Even if it occurs, malfunction can be prevented by eliminating (making it zero) the detection sensitivity during simultaneous operation with the hot air heating unit 3. When the detection sensitivity of the odor sensor 16 is lost, the dust sensor 17 is mounted together with the odor sensor 16 as in the first embodiment.
Thus, the operation of the air cleaning unit 2 can be controlled by monitoring the air contamination.
【0051】(実施例2)実施例2では実施例1と同様
に、開放型暖房装置の制御系の回路構成を示すブロック
図を図1、その機構部の概略構成を示す構成図を図2、
温風暖房部3が停止し空気清浄部2のみ運転している時
の空気の汚れ判定方法を示すタイムチャート図を図3に
示している。実施例1と異なる点は、温風暖房部3の運
転を開始し空気清浄部2と同時運転した時の汚れ判定方
法であり、図5にタイムチャート図を示す。(Embodiment 2) In Embodiment 2, as in Embodiment 1, FIG. 1 is a block diagram showing a circuit configuration of a control system of an open-type heating apparatus, and FIG. ,
FIG. 3 is a time chart illustrating a method of determining air contamination when the hot air heating unit 3 is stopped and only the air cleaning unit 2 is operating. The difference from the first embodiment is a method of determining dirt when the operation of the hot air heating unit 3 is started and the air cleaning unit 2 is operated at the same time. FIG. 5 is a time chart.
【0052】図5は、温風暖房部3が運転し空気清浄部
2と同時運転した時の空気の汚れ判定方法を示すタイム
チャート図である。横軸に時間、縦軸に抵抗値、温風暖
房部3の運転による室温変化、抵抗変化率、汚れ判定レ
ベルを示す。FIG. 5 is a time chart showing a method for judging air contamination when the hot air heating unit 3 is operated and is operated simultaneously with the air cleaning unit 2. The horizontal axis indicates time, the vertical axis indicates resistance, the change in room temperature due to the operation of the hot air heating unit 3, the resistance change rate, and the contamination determination level.
【0053】温風暖房部3は、時間T1で運転を開始
し、温度センサ15の検出温度が設定温度tsになるT
2までは最大の燃焼能力(ガス燃焼量)で運転し、T2
以降は室温を設定温度tsに保つよう燃焼能力を調節
(減少)しながら運転する。The hot-air heating unit 3 starts operation at time T1, and the temperature detected by the temperature sensor 15 becomes the set temperature ts.
Up to 2, operation at the maximum combustion capacity (gas combustion amount), T2
Thereafter, the operation is performed while adjusting (decreasing) the combustion capacity so as to maintain the room temperature at the set temperature ts.
【0054】抵抗値rs、基準抵抗値R、抵抗変化率
φ、判定閾値、汚れ判定レベルの判定方法の概要は、図
3で説明した内容に準じる。基準抵抗値Rの更新方法で
の相違点は、温風暖房部3が最大能力で燃えるT2迄は
基準抵抗値Rの更新時間がTd1であるが、一旦設定温
度tsに達したT2以降は基準抵抗値Rの更新時間Td
2と異なることである。また、温風暖房部3がT1とな
った時点でTd1のカウントを開始し、その時の抵抗値
rsで基準抵抗値Rを更新することである。汚れレベル
の判定での相違点は、空気清浄部2のみ運転時と温風暖
房部3との同時運転時のT1からT2の間(最大の燃焼
能力で運転)と、T2以降(燃焼能力を調節運転)とで
判定閾値が異なることである。T1からT2の間では、
判定閾値が汚れレベル0と1の判定は、閾値Ld1−1
と閾値L’d1−1であること。同様に汚れレベル1と
2の判定は、閾値Ld1−2と閾値L’d1−2で判断
し、汚れレベル2と3の判定は、閾値Ld1−3と閾値
L’d1−3で判断することである。T2以降では、判
定閾値が汚れレベル0と1の判定は、閾値Ld2−1と
閾値L’d2−1で判断する。同様に汚れレベル1と2
の判定は、閾値Ld2−2と閾値L’d2−2で判断
し、汚れレベル2と3の判定は、閾値Ld2−3と閾値
L’d2−3で判断することである。各更新時間、各判
定閾値の条件を式(6) 、式(7) で表す。The outline of the method for determining the resistance value rs, the reference resistance value R, the resistance change rate φ, the determination threshold value, and the dirt determination level conforms to the contents described with reference to FIG. The difference in the method of updating the reference resistance value R is that the update time of the reference resistance value R is Td1 until T2 when the hot air heating unit 3 burns at the maximum capacity, but the reference time after T2 once reaches the set temperature ts. Update time Td of resistance value R
It is different from 2. Further, it is to start counting Td1 when the warm air heating unit 3 reaches T1, and to update the reference resistance value R with the resistance value rs at that time. The differences in the determination of the contamination level are as follows: between T1 and T2 (operation at the maximum combustion capacity) when only the air cleaning unit 2 is operating and at the time of simultaneous operation with the hot air heating unit 3; (Adjustment operation). Between T1 and T2,
The determination that the determination threshold is the dirt level 0 or 1 is based on the threshold Ld1-1.
And the threshold value L'd1-1. Similarly, the dirt levels 1 and 2 are determined by the threshold Ld1-2 and the threshold L'd1-2, and the dirt levels 2 and 3 are determined by the threshold Ld1-3 and the threshold L'd1-3. It is. After T2, the determination of the dirt levels 0 and 1 is based on the thresholds Ld2-1 and L'd2-1. Dirt levels 1 and 2
Is determined by the threshold value Ld2-2 and the threshold value L'd2-2, and the determination of the dirt levels 2 and 3 is performed by the threshold value Ld2-3 and the threshold value L'd2-3. The conditions of each update time and each determination threshold are represented by Expressions (6) and (7).
【0055】 Tc>Td2>Td1‥‥‥‥‥‥‥(6) (Lc−1)>(Ld2−1)>(Ld1−1)‥‥‥‥‥‥‥(7) 次に、温風暖房部3が運転した時の抵抗値rsの挙動に
ついて説明する。温風暖房部3が運転を開始すると、実
施例1と同様に室内の温度上昇、湿度上昇、燃焼排ガス
の濃度増加などの要因により、あたかも空気が汚染した
かのようにセンサの抵抗値rsが減少していく。そのた
めに、運転開始(T1)後から設定温度tsとなる(T
2)迄は、運転開始時との温度差が大きくまた最大能力
で燃焼するため水分や排出ガス濃度も高く、臭いセンサ
16の抵抗値rsは汚染方向に大きく減少する。一方、
一度設定温度tsに達した(T2)以降は、室温がほぼ
一定となり燃焼能力も減少するため、温風暖房部3が運
転していても臭いセンサ16の抵抗値の減少は比較的小
さいものとなっている。Tc>Td2> Td1 ‥‥‥‥‥‥‥ (6) (Lc-1)>(Ld2-1)> (Ld1-1) ‥‥‥‥‥‥‥ (7) The behavior of the resistance value rs when the heating unit 3 operates will be described. When the warm air heating unit 3 starts operating, the resistance value rs of the sensor becomes as if the air was contaminated due to factors such as an increase in the temperature of the room, an increase in the humidity, and an increase in the concentration of the combustion exhaust gas, as in the first embodiment. Decreasing. Therefore, after the start of operation (T1), the temperature reaches the set temperature ts (T
Until 2), the temperature difference from the start of operation is large, and since the fuel burns at the maximum capacity, the concentration of moisture and exhaust gas is high, and the resistance value rs of the odor sensor 16 greatly decreases in the pollution direction. on the other hand,
Once the temperature reaches the set temperature ts (T2), the room temperature becomes substantially constant and the combustion capacity decreases, so that the decrease in the resistance value of the odor sensor 16 is relatively small even when the hot air heating unit 3 is operating. Has become.
【0056】図5に示す実施例2では、T1からT2迄
の間とT2以降とで、基準抵抗値Rの更新時間と判定閾
値を別々に設定することにより、温風暖房部3の運転状
態により臭いセンサ16の検知感度を切り換えることが
できる。温風暖房部3との同時運転時、暖房運転を行い
設定温度tsに達した時に抵抗値rsで基準抵抗値Rを
更新すること、設定温度tsに達した以降は汚染判定レ
ベル0時の基準更新時間を設定温度tsに達するまでの
基準更新時間より長く設定すること、汚れ判定の閾値を
設定温度tsに達するまでの基準更新時間より大きく設
定することにより、温風暖房部3が温調燃焼する間は検
知感度を鋭敏化することができ、本来検出すべき臭い成
分への反応感度を良化することができる。併せて、設定
温度tsに達するまでの臭いセンサ16の変動(汚染方
向の変化)要因が大きいタイミングでは、実施例1のよ
うに温風暖房運転による影響に対して余裕を持って閾値
を設定することにより、空気清浄部2の誤動作を防止す
ることができる。In the second embodiment shown in FIG. 5, the operation time of the warm air heating unit 3 is set by separately setting the update time of the reference resistance value R and the judgment threshold between T1 and T2 and after T2. Thus, the detection sensitivity of the odor sensor 16 can be switched. During the simultaneous operation with the hot air heating unit 3, the heating operation is performed and the reference resistance value R is updated with the resistance value rs when the set temperature ts is reached. By setting the update time to be longer than the reference update time until the set temperature ts is reached, and setting the dirt determination threshold to be longer than the reference update time to reach the set temperature ts, the warm-air heating unit 3 performs temperature controlled combustion. During this time, the detection sensitivity can be sharpened, and the reaction sensitivity to odor components that should be detected can be improved. At the same time, at a timing when the cause of the change (change in the contamination direction) of the odor sensor 16 until the temperature reaches the set temperature ts is large, the threshold value is set with a margin against the influence of the hot air heating operation as in the first embodiment. This can prevent malfunction of the air cleaning unit 2.
【0057】図5に示す実施例2においては、Tcは2
0分、Td2は15分、Td1は10分。またLc−1
は0.8、Ld2−1は0.75、Ld1−1は0.7
〜0.6の設定としている。In the second embodiment shown in FIG. 5, Tc is 2
0 minutes, Td2 is 15 minutes, Td1 is 10 minutes. Lc-1
Is 0.8, Ld2-1 is 0.75, Ld1-1 is 0.7
It is set to 0.6.
【0058】また、Tc、Lc−1及びTd2、Ld2
−1はそのままの定数とし、空気清浄部2のみ運転時と
暖房使用のほとんどの時間を占める温調燃焼状態での臭
いセンサ16の検知感度を保ちながら、Td1は0分、
またはLd1−1は0.0に設定することで、温風暖房
部3の燃焼影響が大きい暖房運転初期(設定温度tsに
達する迄)の検知感度をなくすことができる。温風暖房
部3の最大燃焼能力の違いや機器が使用される部屋の大
きさの違いなどにより、温度変化の傾きや室内の水分や
燃焼排ガス濃度の変化度合いが異なり、臭いセンサ16
の抵抗値変化への影響度合いも各々の状況によって異な
る。いろいろな使用状況を考えた場合、検知感度をゼロ
とすることで、温風暖房部3の運転による空気清浄部2
の誤動作を確実に防ぐことができる。Further, Tc, Lc-1 and Td2, Ld2
Td1 is 0 minute while maintaining the detection sensitivity of the odor sensor 16 in the temperature-controlled combustion state occupying most of the time when only the air purifying section 2 is in operation and when heating is used.
Alternatively, by setting Ld1-1 to 0.0, it is possible to eliminate the detection sensitivity at the beginning of the heating operation (until the set temperature ts is reached) in which the combustion effect of the warm air heating unit 3 is large. Due to the difference in the maximum combustion capacity of the warm air heating unit 3 and the size of the room in which the equipment is used, the inclination of the temperature change and the degree of change in the indoor moisture and the concentration of the combustion exhaust gas differ, and the odor sensor 16
The degree of influence on the change in the resistance value also differs depending on each situation. When various usage conditions are considered, by setting the detection sensitivity to zero, the operation of the hot air heating unit 3 and the air cleaning unit 2
Can be reliably prevented from malfunctioning.
【0059】(実施例3)実施例3では実施例1と同様
に、開放型暖房装置の制御系の回路構成を示すブロック
図を図1、その機構部の概略構成を示す構成図を図2、
温風暖房部3が停止し空気清浄部2のみ運転している時
の汚れ判定方法を示すタイムチャート図を図3に示して
いる。また実施例2と同様に、温風暖房部3の運転を開
始し空気清浄部2と同時運転した時の汚れ判定方法につ
いては、図5にタイムチャート図を示す。この実施例3
が実施例2と異なる点は、汚れ判定レベル1以上を判定
している時、温風暖房部3の停止や運転状態に変化が生
じ、汚れ判定レベルの判定閾値が切り換わる時の基準抵
抗値Rの更新方法であり、図6にタイムチャート図を示
す。(Third Embodiment) In the third embodiment, as in the first embodiment, FIG. 1 is a block diagram showing a circuit configuration of a control system of an open-type heating apparatus, and FIG. ,
FIG. 3 is a time chart showing a dirt determination method when the hot air heating unit 3 is stopped and only the air cleaning unit 2 is operating. FIG. 5 is a time chart showing a dirt determination method when the operation of the hot air heating unit 3 is started and the air cleaning unit 2 is operated at the same time as in the second embodiment. Example 3
The difference from the second embodiment is that when the dirt determination level 1 or more is determined, the stop or operation state of the hot air heating unit 3 changes, and the reference resistance value when the determination threshold of the dirt determination level switches is determined. This is a method for updating R, and FIG. 6 shows a time chart.
【0060】図6は、温風暖房部3が温調運転中に空気
清浄部2が汚れを検出し、汚れ検出中に温風暖房部3が
停止となった時の汚れ判定方法と基準抵抗値Rの更新方
法を示すタイムチャート図である。横軸に時間、縦軸に
抵抗値、温風暖房部3の運転による室温変化、抵抗変化
率、汚れ判定レベルを示す。FIG. 6 shows a dirt determination method and reference resistance when the air purifying unit 2 detects dirt during the temperature control operation of the warm air heating unit 3 and the warm air heating unit 3 is stopped during the dirt detection. It is a time chart which shows the update method of value R. The horizontal axis indicates time, the vertical axis indicates resistance, the change in room temperature due to the operation of the hot air heating unit 3, the resistance change rate, and the contamination determination level.
【0061】温風暖房部3は、設定温度tsに室温を保
つように運転を継続している。例えばスプレー類の噴霧
により室内空気の汚染が生じ(Tx頃)、空気清浄部2
の臭い検知手段22がT1において汚れを判定(汚れ判
定レベル1)する。更に空気汚染が進み汚れ判定レベル
2を判定している。この時、汚れ判定内容に従い空気清
浄部2の空清ファン13の能力や表示/操作部19の汚
れ表示に汚れ度合いを制御している。この状態におい
て、Toff時に温風暖房部3が使用者の操作により停
止した時、汚れの判定閾値が切り換わる。温風暖房部3
運転時に抵抗変化率φと、汚れ判定レベル1から2の判
定閾値Ld2−2と、汚れ判定レベル2から3の判定閾
値Ld2−3とが式(8) の関係にあり、温風暖房部3停
止後に抵抗変化率φと、汚れ判定レベル2から3の判定
閾値Lc−3とが式(9) の関係にある時、実施例2の制
御方法では汚れ判定レベルがレベル2からレベル3に切
り換わることになる。The hot-air heating unit 3 continues to operate so as to maintain the room temperature at the set temperature ts. For example, spraying of sprays causes contamination of the indoor air (around Tx), and the air cleaning unit 2
The smell detecting means 22 determines the dirt at T1 (dirt determination level 1). Further, the air pollution advances, and the stain determination level 2 is determined. At this time, the ability of the air purifying fan 13 of the air purifying unit 2 and the degree of dirt on the dirt display on the display / operation unit 19 are controlled in accordance with the dirt determination content. In this state, when the warm air heating unit 3 is stopped by a user's operation at the time of Toff, the dirt determination threshold is switched. Hot air heating unit 3
During operation, the resistance change rate φ, the determination thresholds Ld2-2 for the dirt determination levels 1 to 2 and the determination thresholds Ld2-3 for the dirt determination levels 2 to 3 have the relationship of equation (8). After the stop, when the resistance change rate φ and the determination threshold Lc-3 of the dirt determination levels 2 to 3 have the relationship of Expression (9), the control method of the second embodiment switches the dirt determination level from level 2 to level 3. Will be replaced.
【0062】 (Ld2−3)>φ>(Ld2−2)‥‥‥‥‥‥‥(8) φ>(Lc−3)‥‥‥‥‥‥‥(9) 温風暖房部3の運転状態に変化があると判定閾値を切り
換えるため抵抗変化率φの値によっては、判定レベルが
変化し、空清ファン13の動作状態や汚れ表示状態が変
わってしまうという問題が生じる。(Ld2-3)>φ> (Ld2-2) ‥‥‥‥‥‥‥ (8) φ> (Lc-3) ‥‥‥‥‥‥‥ (9) Operation of Hot Air Heating Unit 3 When there is a change in the state, the determination threshold is switched, so that the determination level changes depending on the value of the resistance change rate φ, and a problem arises that the operating state of the air cleaning fan 13 and the dirt display state change.
【0063】本実施例3では、空気汚染検出中に判定閾
値が切り換わる変化が生じた時、現状の汚れ判定レベル
を継続するように、切り換わり後の判定閾値と抵抗値r
sより、基準抵抗値Rを推定し更新する点が実施例2と
の相違点である。例えばToffにおいて、温風暖房部
3運転時に汚れ判定レベル2の場合は、温風暖房部3停
止後は式(10)に従い基準抵抗値Rを推定し更新する。In the third embodiment, when a change occurs in the judgment threshold value during the detection of air pollution, the current judgment level and the resistance value r are changed so that the current contamination judgment level is maintained.
The difference from the second embodiment is that the reference resistance value R is estimated and updated from s. For example, in Toff, when the dirt determination level is 2 during the operation of the hot air heating unit 3, the reference resistance value R is estimated and updated according to the equation (10) after the hot air heating unit 3 is stopped.
【0064】 R=rs/(Lc−n)‥‥‥‥‥‥‥(10) (nは汚れ判定レベルで、1〜3) 温風暖房部3停止後は、抵抗変化率φが切り換わり後の
判定閾値Lc−2と等しくなるように基準抵抗値Rを補
正するため、判定レベルは閾値切り換わり前の汚れ判定
レベル2を継続維持する。切り換わり後、判定レベル3
となるには抵抗変化率φがLc−3以上、判定レベル1
となるには抵抗変化率φがL’c−2未満となる必要が
あるが、基準抵抗値Rを推定し更新した時点では式(11)
が成り立ち、汚れ判定レベル2が保たれる。R = rs / (Lc−n) ‥‥‥‥‥‥‥ (10) (n is a dirt determination level, 1 to 3) After the hot air heating unit 3 is stopped, the resistance change rate φ switches. In order to correct the reference resistance value R so as to be equal to the subsequent determination threshold Lc-2, the determination level continuously maintains the dirt determination level 2 before the threshold switching. After switching, judgment level 3
Is satisfied, the resistance change rate φ is equal to or greater than Lc−3, and the determination level is 1
Is required to be less than L′ c−2, but when the reference resistance value R is estimated and updated, the equation (11) is obtained.
Holds, and the stain determination level 2 is maintained.
【0065】 (Lc−3)>{φ=(Lc−2)}>(L’c−2)‥‥‥‥‥‥‥(11) 図6においては、汚れ判定中に温風暖房部3が温調燃焼
状態から停止となった時の動作を説明した。しかし、他
に汚れ判定中に温風暖房部3が停止から運転状態に変わ
った時、暖房運転により設定温度tsになった時など、
汚れ判定閾値の値が切り換わるタイミングにおいて、同
様に基準抵抗値Rを補正し更新することで、温風暖房部
3の動作切り換わり時に生じる汚れレベルの誤判定を防
ぐことができ、空気清浄部2の誤動作を防止できる。(Lc-3)> {φ = (Lc−2)}> (L′ c−2)} (11) In FIG. 6, the hot air heating unit 3 Has been described when the operation is stopped from the temperature controlled combustion state. However, when the hot air heating unit 3 is changed from the stoppage to the operating state during the dirt determination, when the set temperature ts is reached by the heating operation, etc.
By correcting and updating the reference resistance value R at the same time when the value of the dirt determination threshold is switched, it is possible to prevent erroneous determination of the dirt level that occurs when the operation of the warm air heating unit 3 is switched, and the air purifying unit. 2 can be prevented from malfunctioning.
【0066】また、実施例1において温風暖房部3運転
時の検知感度がゼロでない場合も、同様に基準抵抗値R
を補正することで温風暖房部3の運転/停止時に生じる
同様な誤動作を防ぐことができる。In the first embodiment, when the detection sensitivity during the operation of the hot air heating unit 3 is not zero, the reference resistance value R
Is corrected, it is possible to prevent a similar malfunction that occurs when the hot air heating unit 3 is operated / stopped.
【0067】(実施例4)本実施例4において上記実施
例1〜3と異なる点は、基準抵抗値Rの更新方法であ
る。汚れ判定レベル0(きれいな状態)にて抵抗値rs
が増加(清浄方向に変化)し基準抵抗値Rより大きくな
る時、基準抵抗値Rは時々刻々と変化する抵抗値rsを
目標として、一定の時定数で徐々に増加させながら更新
するところである。Embodiment 4 Embodiment 4 differs from Embodiments 1 to 3 in the method of updating the reference resistance value R. Resistance value rs at dirt determination level 0 (clean state)
Increases (changes in the cleaning direction) and becomes larger than the reference resistance value R, the reference resistance value R is being updated while gradually increasing at a constant time constant with the resistance value rs changing every moment as a target.
【0068】図7は、温風暖房部3が運転開始し空気清
浄部2と同時運転した時の空気の汚れ判定方法と基準抵
抗値Rの更新方法を示すタイムチャート図である。横軸
に時間、縦軸に抵抗値、温風暖房部3の運転による室温
変化、抵抗変化率、汚れ判定レベルを示す。FIG. 7 is a time chart showing a method of determining air contamination and a method of updating the reference resistance value R when the warm air heating unit 3 starts operating and operates simultaneously with the air cleaning unit 2. The horizontal axis indicates time, the vertical axis indicates resistance, the change in room temperature due to the operation of the hot air heating unit 3, the resistance change rate, and the contamination determination level.
【0069】汚れ判定レベルが0の時の基準抵抗値Rの
更新は、初期T0では、抵抗値rs0を基準抵抗値Rと
する。T0以降、抵抗値rsが増加(空気がきれいにな
っていく方向に変化)し基準抵抗値Rより大きくなる時
は、基準抵抗値Rをより空気が清浄な抵抗値で更新して
いく。実施例1〜3では抵抗値rsそのもので直接更新
するが、実施例4では、抵抗値rsとなるようその値を
到達目標とし基準抵抗値Rの値を徐々に増加させながら
更新する。抵抗値rsが安定または減少方向に変化し、
基準抵抗値Rが抵抗値rsに到達するまで更新を続け
る。図7のa部において、基準抵抗値Rがrs0からr
s1に変化する様子を示す。When the reference resistance value R is updated when the contamination determination level is 0, the resistance value rs0 is used as the reference resistance value R in the initial T0. After T0, when the resistance value rs increases (changes in a direction in which the air becomes clean) and becomes larger than the reference resistance value R, the reference resistance value R is updated with a resistance value with cleaner air. In the first to third embodiments, the resistance value rs is directly updated, but in the fourth embodiment, the resistance value rs is updated while gradually increasing the value of the reference resistance value R with that value as the target. The resistance value rs changes in a stable or decreasing direction,
Update is continued until the reference resistance value R reaches the resistance value rs. 7, the reference resistance value R is changed from rs0 to r.
The state changing to s1 is shown.
【0070】図7においては、T1で温風暖房部3が運
転を開始し、T2で室温が設定温度tsに達し、以降温
調運転を継続している。T3において室内の換気をする
ために窓あるいはドアを開けると、臭いセンサ16が室
外の環境が異なる新鮮な(通常では温度低下、湿度低
下、燃焼排ガス濃度が低下した)空気に曝されるため、
抵抗値rsは急激に増加(清浄方向に変化)する。1分
程度換気した後、T4において窓あるいはドアを閉める
と、臭いセンサ16の雰囲気は換気前の室内の空気の状
態に馴染み、抵抗値rsは換気前のT1時点での抵抗値
にほぼ近い値まで減少(汚染方向に変化)する。この時
の基準抵抗値Rの変化は図7のb部にあるように、rs
2からrs3への増加で留まり、T4以降抵抗値の減少
が生じても抵抗値rsと基準抵抗値Rが式(12)の関係と
なり、抵抗変化率φは1以上となる。実施例4では、抵
抗変化率φが1以上の時は1として扱い汚れレベルの判
定を行っている。In FIG. 7, the warm air heating unit 3 starts operating at T1, the room temperature reaches the set temperature ts at T2, and the temperature control operation is continued thereafter. When the window or door is opened to ventilate the room at T3, the odor sensor 16 is exposed to fresh air (usually having a lowered temperature, a lower humidity, and a lower concentration of flue gas) in a different outdoor environment.
The resistance value rs rapidly increases (changes in the cleaning direction). When the window or door is closed at T4 after ventilating for about 1 minute, the atmosphere of the odor sensor 16 adapts to the state of the air in the room before the ventilation, and the resistance value rs is a value almost close to the resistance value at the time T1 before the ventilation. (Change in the direction of contamination). The change in the reference resistance value R at this time is represented by rs
Even if the resistance value decreases after T4, the resistance value rs and the reference resistance value R have the relationship of the equation (12), and the resistance change rate φ is 1 or more. In the fourth embodiment, when the resistance change rate φ is 1 or more, it is treated as 1 and the contamination level is determined.
【0071】rs≧R‥‥‥‥‥‥‥(12) これにより、換気後抵抗値rsが減少(汚染方向に変
化)しても汚れを検出することはなく、温風暖房部3運
転時の換気などによる空気清浄部2の誤動作を防ぐこと
ができる。Rs ≧ R ‥‥‥‥‥‥‥ (12) Accordingly, even if the post-ventilation resistance value rs decreases (changes in the direction of contamination), no dirt is detected, and the warm air heating unit 3 is operated. Malfunction of the air cleaning unit 2 due to ventilation or the like can be prevented.
【0072】換気時間(T3〜T4の間)が長くなれ
ば、基準抵抗値Rは増加していくが、室内の空気の入れ
換わりの度合いが増し、換気終了後の抵抗値rsの戻り
も少なくなる傾向になる。このため換気時間の長短差が
生じても抵抗変化率φはさほど変化しない。As the ventilation time (between T3 and T4) becomes longer, the reference resistance value R increases, but the degree of replacement of indoor air increases, and the return of the resistance value rs after the end of ventilation decreases. It tends to be. For this reason, the resistance change rate φ does not change so much even if a difference in the length of the ventilation time occurs.
【0073】実施例4での基準抵抗値R更新の時定数
は、臭いセンサ16の抵抗値が数十(kΩ)の場合は約
5〜20Ω/秒相当で更新する。清浄空気中での通常発
生する抵抗値rsの増加方向の変化は、気温や湿度に影
響されるが非常に緩やかなものである。また暖房中の換
気による抵抗値rsの変化は自然環境の変化による影響
では生じないほどの急激なものである。双方の抵抗値r
sの変化速度を実験的に求め、通常の状態では基準抵抗
値Rの更新が十分に追従し、暖房中の換気時は更新をキ
ャンセルする時定数を設定している。The time constant for updating the reference resistance value R in the fourth embodiment is updated at about 5 to 20 Ω / sec when the resistance value of the odor sensor 16 is several tens (kΩ). The change in the increasing direction of the resistance value rs which normally occurs in the clean air is affected by the temperature and the humidity, but is very gentle. The change in the resistance value rs due to ventilation during heating is so rapid that it does not occur due to the change in the natural environment. Both resistance values r
The change rate of s is experimentally determined, and in a normal state, the update of the reference resistance value R sufficiently follows, and a time constant for canceling the update during ventilation during heating is set.
【0074】尚、実施例4では、温風暖房部3と空気清
浄部2とを複合した機器での説明であるが、一般の空気
清浄機においても暖房器具との同時使用は行われること
であるので実施例4は誤動作防止の点で有効な手段とな
る。In the fourth embodiment, a description is given of a device in which the hot air heating unit 3 and the air purifying unit 2 are combined. However, a general air purifier is also used simultaneously with a heating device. Therefore, the fourth embodiment is an effective means for preventing malfunction.
【0075】[0075]
【発明の効果】以上説明したように本発明によれば、温
風暖房部と空気清浄部とが一体となった空気清浄機能付
き暖房装置において、空気清浄部の臭い検知手段が、温
風暖房部停止時と運転時とでそれぞれ第1検知感度と第
2検知感度の異なった検知感度を有し、第2検知感度を
第1検知感度よりも低下するようにしている。よって、
温風暖房部の運転による室内温度変化、湿度変化、燃焼
排ガス濃度の増加などにより臭いセンサが汚染検出側へ
反応しても、第2検知感度を低下させ前記反応に対し余
裕を持つことで、温風暖房部と空気清浄部の同時運転時
に臭いセンサの臭い成分有りとの誤検知による空気清浄
部の誤動作を防止することができる。併せて、温風暖房
部停止時(空気清浄部のみ運転時)は第1検知感度のみ
設けることで温風暖房部運転の影響とは関係なく、感度
良く空気の汚れ(臭い成分)を検知するという有効な効
果を有する。As described above, according to the present invention, in a heating device having an air purifying function in which a warm air heating unit and an air purifying unit are integrated, the odor detecting means of the air purifying unit is provided with a hot air heating unit. The first detection sensitivity and the second detection sensitivity have different detection sensitivities when the unit is stopped and during operation, respectively, so that the second detection sensitivity is lower than the first detection sensitivity. Therefore,
Even if the odor sensor responds to the contamination detection side due to a change in the room temperature due to the operation of the warm air heating unit, a change in humidity, an increase in the concentration of the combustion exhaust gas, etc., the second detection sensitivity is lowered to allow a margin for the reaction, It is possible to prevent an erroneous operation of the air purifying unit due to erroneous detection of the presence of the odor component by the odor sensor when the hot air heating unit and the air purifying unit are simultaneously operated. At the same time, when the hot air heating section is stopped (when only the air cleaning section is operated), only the first detection sensitivity is provided to detect air dirt (odor components) with high sensitivity regardless of the influence of the hot air heating section operation. It has an effective effect.
【0076】また、臭い検知手段が検知した臭い成分を
もとに空気清浄部の空気清浄用ファンを制御し空気清浄
能力を制御するようにしている。よって、空気清浄機能
付き暖房装置においても、臭いセンサによる空気清浄部
の自動運転を可能とすることができる。Further, the air purifying fan of the air purifying section is controlled based on the odor component detected by the odor detecting means to control the air purifying ability. Therefore, even in the heating device with the air purifying function, it is possible to automatically operate the air purifying unit by the odor sensor.
【0077】また、臭い検知手段の第2検知感度をゼロ
(感度なし)とすることで、石油を燃料とし、燃焼する
ことで臭い成分を多く発生するなどの温風暖房部の特性
と、臭いセンサの検出ガスとの特性との相性が合わない
場合でも、温風暖房部運転による臭いセンサでの誤検知
による空気清浄部の誤動作を確実に防止することができ
る。Further, by setting the second detection sensitivity of the odor detection means to zero (no sensitivity), it is possible to use oil as a fuel and burn it to generate a lot of odor components, such as the characteristics of the hot air heating section and the odor. Even when the characteristics of the sensor and the detection gas do not match, it is possible to reliably prevent the malfunction of the air cleaning unit due to the erroneous detection by the odor sensor due to the operation of the warm air heating unit.
【0078】また、温風暖房部が室温を設定温度に保つ
温調機能を備えたものにおいて、臭い検知手段が、温風
暖房部が運転している間において運転開始から室温が設
定温度に達する迄の第3検知感度と、温風暖房部が運転
している間において運転開始から室温が設定温度に達し
た以降の第4検知感度を有し、第3検知感度を第4検知
感度よりも低下するようにしている。よって、温風暖房
部運転開始時の最大能力での燃焼で生じる臭いセンサへ
の汚染側への反応と、温調燃焼時の能力を絞った燃焼で
生じる臭いセンサの汚染側への反応の差にそれぞれ対応
することができ、第3検知感度を運転開始時に生ずる大
きな汚染側への反応に対し余裕をもって設定すること
で、温風暖房部運転による臭いセンサの誤検知による空
気清浄部の誤動作を防止することができる。併せて、第
4検知感度を温調燃焼時に生ずる比較的小さな反応のレ
ベルに合わせて設定することで、温風暖房部運転時間の
大半を占める温調燃焼時の空気清浄部の汚れ検知感度を
良化することができる。Further, in the apparatus provided with a temperature control function for keeping the room temperature at the set temperature, the odor detecting means makes the room temperature reach the set temperature from the start of operation while the hot air heating section is operating. And the fourth detection sensitivity after the room temperature reaches the set temperature from the start of operation while the hot air heating unit is operating, and the third detection sensitivity is higher than the fourth detection sensitivity. I try to lower it. Therefore, the difference between the reaction of the odor sensor to the contaminated side caused by combustion at the maximum capacity at the start of operation of the hot air heating unit and the reaction of the odor sensor to the contaminated side caused by combustion with reduced capacity during temperature controlled combustion. By setting the third detection sensitivity with a margin for the reaction to the large pollutant side that occurs at the start of operation, it is possible to prevent the malfunction of the air cleaning unit due to the erroneous detection of the odor sensor due to the operation of the hot air heating unit. Can be prevented. At the same time, by setting the fourth detection sensitivity in accordance with the level of a relatively small reaction that occurs during temperature controlled combustion, the dirt detection sensitivity of the air cleaning unit during temperature controlled combustion, which accounts for most of the operation time of the hot air heating unit, is reduced. Can be improved.
【0079】また、臭い検知手段の第3検知感度をゼロ
(感度なし)とすることで、温風暖房部の最大能力の違
いや使用される部屋の広さによって、臭いセンサの反応
に差が生じるような場合でも、温風暖房部運転による臭
いセンサの誤検知による空気清浄部の誤動作を確実に防
止することができる。Further, by setting the third detection sensitivity of the odor detection means to zero (no sensitivity), there is a difference in the reaction of the odor sensor due to the difference in the maximum capacity of the warm air heating unit and the size of the room used. Even in such a case, it is possible to reliably prevent the malfunction of the air cleaning unit due to the erroneous detection of the odor sensor due to the operation of the warm air heating unit.
【0080】また、空気の汚れを検出している間に温風
暖房部の運転状態が代わり検知感度が切り換わった際、
切り換わり後の感度においても現在判定している汚れレ
ベルを継続するよう臭い検知手段が補正を行う。よっ
て、温風暖房部の運転/停止などの状態変化による空気
清浄部の汚れ判定レベル変動という誤動作を防止するこ
とができる。Further, when the operating state of the hot air heating unit is changed while detecting the contamination of the air and the detection sensitivity is switched,
The odor detection means corrects the sensitivity after the switching so that the currently determined dirt level is continued. Therefore, it is possible to prevent a malfunction such as a change in the dirt determination level of the air cleaning unit due to a change in state such as operation / stop of the hot air heating unit.
【0081】また、基準値からの変化で汚れを判定する
ものにおいて、臭いセンサの検出感度を良化させるため
に基準値を清浄側に更新していく際、時定数を持って徐
々に清浄側に更新する。よって、温風暖房時の換気によ
り生じる臭いセンサの出力の急激な変動を吸収すること
ができ、暖房中の換気で生じる空気清浄部の誤動作を防
止することができる。When the reference value is updated to the clean side in order to improve the detection sensitivity of the odor sensor in the case where the contamination is determined based on a change from the reference value, the clean side is gradually replaced with a time constant. Update to Therefore, it is possible to absorb a sudden change in the output of the odor sensor caused by the ventilation at the time of the warm air heating, and to prevent a malfunction of the air cleaning unit caused by the ventilation during the heating.
【図1】本発明の実施例の空気清浄機能付き暖房装置の
回路構成を示すブロック図。FIG. 1 is a block diagram showing a circuit configuration of a heating device with an air purifying function according to an embodiment of the present invention.
【図2】同空気清浄機能付き暖房装置の機構部の概略構
成を示す側面図。FIG. 2 is a side view showing a schematic configuration of a mechanism of the heating device with the air cleaning function.
【図3】同空気清浄機能付き暖房装置の空気清浄部の臭
い検知方法を示すタイムチャート図。FIG. 3 is a time chart showing a method of detecting an odor in an air purifying section of the heating device with the air purifying function.
【図4】本発明の実施例1の空気清浄機能付き暖房装置
の空気清浄部の臭い検知方法を示すタイムチャート図。FIG. 4 is a time chart illustrating a method of detecting an odor in an air purifying unit of the heating device with an air purifying function according to the first embodiment of the present invention.
【図5】本発明の実施例2の空気清浄機能付き暖房装置
の空気清浄部の臭い検知方法を示すタイムチャート図。FIG. 5 is a time chart illustrating a method for detecting an odor in an air purifying unit of a heating device having an air purifying function according to a second embodiment of the present invention.
【図6】本発明の実施例3の空気清浄機能付き暖房装置
の空気清浄部の臭い検知方法を示すタイムチャート図。FIG. 6 is a time chart illustrating a method of detecting an odor in an air purifying unit of a heating device with an air purifying function according to a third embodiment of the present invention.
【図7】本発明の実施例4の空気清浄機能付き暖房装置
の空気清浄部の臭い検知方法を示すタイムチャート図。FIG. 7 is a time chart illustrating a method of detecting an odor in an air purifying unit of a heating device with an air purifying function according to a fourth embodiment of the present invention.
【図8】従来例の空気清浄機の臭い検出方法を示すタイ
ムチャート図。FIG. 8 is a time chart showing a method of detecting an odor of a conventional air purifier.
【図9】別な従来例の空気清浄機と暖房機器との同時使
用時の臭いセンサの変化を示すタイムチャート図。FIG. 9 is a time chart showing changes in an odor sensor when another conventional air cleaner and a heating device are used simultaneously.
2 空気清浄部 3 温風暖房部 12 脱臭フィルタ 13 空気清浄用ファン 15 温度センサ 16 臭いセンサ 22 臭い検知手段 23 制御回路部 Reference Signs List 2 air cleaning unit 3 hot air heating unit 12 deodorizing filter 13 air cleaning fan 15 temperature sensor 16 odor sensor 22 odor detection means 23 control circuit unit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 五十嵐 逸夫 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 岡田 康弘 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 平岡 哲也 大阪市中央区平野町4丁目1番地2号 大 阪瓦斯株式会社内 Fターム(参考) 3L028 EA01 EB03 EC04 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Itsuo Igarashi 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. 72) Inventor Tetsuya Hiraoka 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi F-term in Osaka Gas Co., Ltd. (reference) 3L028 EA01 EB03 EC04
Claims (9)
と、この臭いセンサの検出出力から臭い成分の存在を検
知する臭い検知手段と、この臭い検知手段の検知に基づ
いて運転される空気清浄用のファンとを備えた空気清浄
部と、室温を検知する温度センサを備えた温風暖房部と
を併設した空気清浄機能付き暖房装置において、前記臭
い検知手段の検知感度は、温風暖房部が停止している間
の第1検知感度と、温風暖房部が運転している間の第2
検知感度とを有し、前記第2検知感度は前記第1検知感
度より感度を低下させていることを特徴とする空気清浄
機能付き暖房装置。An odor sensor comprising a semiconductor gas sensor, odor detection means for detecting the presence of an odor component from the detection output of the odor sensor, and an air purifying fan operated based on the detection of the odor detection means. In a heating device with an air purifying function provided with an air purifying section equipped with a hot air heating section equipped with a temperature sensor for detecting room temperature, the detection sensitivity of the odor detecting means is such that the hot air heating section is stopped. The first detection sensitivity during the operation and the second detection sensitivity during the operation of the hot air heating unit
A heating device having an air cleaning function, comprising: a detection sensitivity; and wherein the second detection sensitivity is lower in sensitivity than the first detection sensitivity.
ァンを自動運転する制御手段を備えている請求項1記載
の空気清浄機能付き暖房装置。2. The heating device with an air purifying function according to claim 1, further comprising control means for automatically operating the air purifying fan upon detection of the odor detecting means.
をゼロ(感度なし)としている請求項1記載の空気清浄
機能付き暖房装置。3. The heating device with an air purifying function according to claim 1, wherein the detection sensitivity of the second detection sensitivity of the odor detection means is zero (no sensitivity).
て室温を設定温度に保つ温度調節機能を備え、臭い検知
手段の検知感度は、温風暖房部が運転している間におい
て運転開始から室温が設定温度に達する迄の第3検知感
度と、温風暖房部が運転している間において設定温度に
達した以降の第4検知感度とを有し、前記第3検知感度
は前記第4検知感度より感度を低下させている請求項1
記載の空気清浄機能付き暖房装置。4. The hot-air heating unit has a temperature adjustment function for maintaining the room temperature at a set temperature based on the detection of the temperature sensor, and the detection sensitivity of the odor detecting means is set to start while the hot-air heating unit is operating. A third detection sensitivity until the room temperature reaches the set temperature, and a fourth detection sensitivity after the set temperature is reached while the hot air heating unit is operating, and the third detection sensitivity is the third detection sensitivity. 4. The sensitivity is lower than the detection sensitivity.
A heating device with an air purifying function as described.
をゼロ(感度なし)としている請求項4記載の空気清浄
機能付き暖房装置。5. The heating device with an air purifying function according to claim 4, wherein the detection sensitivity of the third detection sensitivity of the odor detection means is zero (no sensitivity).
の検出値を基準値とし、臭い成分を検出する迄の間は、
前記基準値を所定時間毎に更新しながらこの基準値を基
準として臭いセンサの検出値との変化率を求め、この変
化率と予め設定した閾値とを比較することで臭い成分の
存在を検知し変化率の値で汚れを判定するものであっ
て、基準値の更新間隔を前記所定時間よりも短く設定す
ることにより、前記臭い検知手段の検知感度を低下させ
ている請求項1ないし5の何れか1項に記載の空気清浄
機能付き暖房装置。6. The odor detecting means uses a detection value of the odor sensor in a clean state as a reference value, and until the odor component is detected,
While the reference value is updated every predetermined time, the rate of change from the detection value of the odor sensor is obtained based on the reference value, and the presence of the odor component is detected by comparing the rate of change with a preset threshold. 6. The method according to claim 1, wherein the determination is made based on the value of the change rate, and the detection sensitivity of the odor detection unit is reduced by setting a reference value update interval shorter than the predetermined time. A heating device with an air purifying function according to claim 1.
の検出値を基準値とし、臭い成分を検出する迄の間は、
前記基準値を所定時間毎に更新しながらこの基準値を基
準として臭いセンサの検出値との変化率を求め、この変
化率と予め設定した閾値とを比較することで臭い成分の
存在を検知し変化率の値で汚れを判定するものであっ
て、前記閾値の設定に余裕を設けることにより、前記臭
い検知手段の検知感度を低下させている請求項1ないし
5の何れか1項に記載の空気清浄機能付き暖房装置。7. The odor detection means uses a detection value of the odor sensor in a clean state as a reference value, and until the odor component is detected,
While the reference value is updated every predetermined time, the rate of change from the detection value of the odor sensor is obtained based on the reference value, and the presence of the odor component is detected by comparing the rate of change with a preset threshold. 6. The method according to claim 1, wherein the determination is made based on a value of a change rate, and the detection sensitivity of the odor detection unit is reduced by providing a margin for setting the threshold. 7. Heating device with air purifying function.
の検出値を基準値とし、臭い成分を検出する迄の間は、
前記基準値を所定時間毎に更新しながらこの基準値を基
準として臭いセンサの検出値との変化率を求め、この変
化率と予め設定した閾値とを比較することで臭い成分の
存在を検知し変化率の値で汚れを判定し、前記閾値の設
定に余裕を設けることにより、前記臭い検知手段の検知
感度を低下させるものであって、臭い成分を検出してい
る間に検知感度に切り換わりが生じた時に、臭いセンサ
の検出値と検知感度切り換わり後の閾値より基準値を求
めてこの基準値の更新を行っている請求項1、2、4ま
たは5に記載の空気清浄機能付き暖房装置。8. The odor detection means uses a detection value of the odor sensor in a clean state as a reference value, and until the odor component is detected,
While the reference value is updated every predetermined time, the rate of change from the detection value of the odor sensor is obtained based on the reference value, and the presence of the odor component is detected by comparing the rate of change with a preset threshold. Judgment is made by the value of the change rate, and by setting a margin for the setting of the threshold value, the detection sensitivity of the odor detection means is reduced, and the detection sensitivity is switched during detection of the odor component. 6. A heating unit with an air purifying function according to claim 1, wherein a reference value is obtained from a detection value of the odor sensor and a threshold value after switching of the detection sensitivity, and the reference value is updated when the detection occurs. apparatus.
の検出値を基準値とし、臭い成分を検出する迄の間は、
前記基準値を所定時間毎に更新しながらこの基準値を基
準として臭いセンサの検出値との変化率を求め、この変
化率と予め設定した閾値とを比較することで臭い成分の
存在を検知し変化率の値で汚れを判定するものであっ
て、前記基準値よりも臭いセンサの検出値が清浄になっ
た時は、前記基準値が時定数をもって徐々に臭いセンサ
の検出値となるように基準値を更新している請求項1な
いし5の何れか1項に記載の空気清浄機能付き暖房装
置。9. The odor detection means uses a detection value of the odor sensor in a clean state as a reference value, and until the odor component is detected,
While the reference value is updated every predetermined time, the rate of change from the detection value of the odor sensor is obtained based on the reference value, and the presence of the odor component is detected by comparing the rate of change with a preset threshold. Dirt is determined by the value of the change rate, and when the detection value of the odor sensor becomes cleaner than the reference value, the reference value gradually becomes a detection value of the odor sensor with a time constant. The heating device with an air cleaning function according to claim 1, wherein the reference value is updated.
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JP2000222049A Expired - Fee Related JP4350279B2 (en) | 2000-07-24 | 2000-07-24 | Heating device with air purifying function |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2051018A2 (en) | 2007-10-17 | 2009-04-22 | Atlantic Industrie | Device for emitting or moving hot air |
JP2011027930A (en) * | 2009-07-23 | 2011-02-10 | Sharp Corp | Image forming system |
US8885183B2 (en) | 2009-07-22 | 2014-11-11 | Sharp Kabushiki Kaisha | Image forming system with an air cleaner that displays an operating state of the image forming apparatus |
-
2000
- 2000-07-24 JP JP2000222049A patent/JP4350279B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2051018A2 (en) | 2007-10-17 | 2009-04-22 | Atlantic Industrie | Device for emitting or moving hot air |
FR2922631A1 (en) * | 2007-10-17 | 2009-04-24 | Atlantic Ind Soc Par Actions S | DEVICE FOR TRANSMITTING OR DISPLACING HOT AIR |
US8885183B2 (en) | 2009-07-22 | 2014-11-11 | Sharp Kabushiki Kaisha | Image forming system with an air cleaner that displays an operating state of the image forming apparatus |
JP2011027930A (en) * | 2009-07-23 | 2011-02-10 | Sharp Corp | Image forming system |
Also Published As
Publication number | Publication date |
---|---|
JP4350279B2 (en) | 2009-10-21 |
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