JP2017116147A - Air cleaner - Google Patents

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JP2017116147A
JP2017116147A JP2015250151A JP2015250151A JP2017116147A JP 2017116147 A JP2017116147 A JP 2017116147A JP 2015250151 A JP2015250151 A JP 2015250151A JP 2015250151 A JP2015250151 A JP 2015250151A JP 2017116147 A JP2017116147 A JP 2017116147A
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air
unit
detection
output
flow path
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哲也 長瀬
Tetsuya Nagase
哲也 長瀬
弘士 小原
Hiroshi Obara
弘士 小原
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Priority to CN201611157239.5A priority patent/CN106907791A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/30—Velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner that can enhance detection accuracy of fine particles in a dirt detection part.SOLUTION: A dust sensor 8 as a dirt detection part 11 is arranged on a flow passage of air generated in association with driving of a fan motor 5 as an air blowing part. A control unit 21 changes an air velocity in a detection area of the dust sensor 8 by changing a rotation speed (output) of the fan motor 5. This can expand a detection range of fine particles in the dirt detection part 11, i.e. enhance detection accuracy.SELECTED DRAWING: Figure 4

Description

本発明は、空気清浄機に関する。   The present invention relates to an air cleaner.

従来、本体ケース内にフィルタなどの空気清浄部と、ファンモータなどの送風部とを有し、送風部を駆動させることで吸込み口から吸い込んだ空気の塵埃などを空気清浄部で除去（捕集）する空気清浄機が知られている（例えば、特許文献１，２参照）。   Conventionally, the main body case has an air purifying part such as a filter and a blower part such as a fan motor, and the air purifier removes (collects) air dust sucked from the suction port by driving the air blowing part. ) Is known (see, for example, Patent Documents 1 and 2).

特許文献１及び２の空気清浄機では、空気中に含まれる塵埃などの微粒子を検出する汚れ検出部（特許文献２ではダスト検出器）を備え、汚れ検出部の検出結果に基づいて送風部の駆動を制御するようになっている。   The air cleaners of Patent Documents 1 and 2 include a dirt detection unit (a dust detector in Patent Document 2) that detects fine particles such as dust contained in the air, and the air cleaner of the blower unit is based on the detection result of the dirt detection unit. The drive is controlled.

このような空気清浄機の汚れ検出部では、光を発する発光素子と、光を受光する受光素子と、加熱部とを有する。汚れ検出部は、加熱部によって生じる上昇気流によって塵埃などの微粒子を発光素子及び受光素子の検出領域内に運び、検出領域内に発光素子の光を照射し、検出領域内に存在する微粒子からの反射光を受光素子にて受光することで微粒子の有無を検出することが可能となっている。そして、受光した信号をマイコン等の制御部によって扱い易いように信号を増幅するようになっている。   Such a dirt detector of an air cleaner has a light emitting element that emits light, a light receiving element that receives light, and a heating part. The dirt detection unit carries fine particles such as dust into the detection area of the light emitting element and the light receiving element by the rising air flow generated by the heating unit, irradiates the light of the light emitting element in the detection area, and from the fine particles existing in the detection area. The presence or absence of fine particles can be detected by receiving the reflected light with a light receiving element. The received signal is amplified so that it can be easily handled by a control unit such as a microcomputer.

特開２０１５−６４１７３号公報Japanese Patent Laying-Open No. 2015-64173 特開２００２−８９９０７号公報JP 2002-89907 A

ところで、上記のような空気清浄機の汚れ検出部では、熱源を温めることで生じる上昇気流によって検出エリア内に塵埃などの微粒子を運び、検出エリア内に運ばれた微粒子を検出するようになっている。   By the way, in the dirt detection part of the air cleaner as described above, fine particles such as dust are carried into the detection area by the rising air flow generated by heating the heat source, and the fine particles carried into the detection area are detected. Yes.

しかしながら、熱源を温めるだけでは花粉等の比較的大きな微粒子を検出エリア内に運ぶことができず、検出精度を高く維持することが難しい。   However, relatively large particles such as pollen cannot be carried into the detection area simply by heating the heat source, and it is difficult to maintain high detection accuracy.

本発明は、上記課題を解決するためになされたものであって、その目的は、汚れ検出部における微粒子の検出精度を高めることができる空気清浄機を提供することにある。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air cleaner that can improve the detection accuracy of particulates in a dirt detection unit.

上記課題を解決するために、空気清浄機は、吸込み口及び吹出し口を備えた本体ケースと、前記吸込み口から流入した空気を前記吹出し口から吹き出させるための送風部と、前記吸込み口から流入した空気を清浄する空気清浄部と、検出領域内を通る検出対象の粒子径に応じた出力信号を出力する汚れ検出部と、前記汚れ検出部で出力される出力信号に基づいて検出領域内の検出対象の粒子径を判定し、その判定結果に基づいて前記送風部を制御する制御部と、を有する空気清浄機であって、前記汚れ検出部は、前記送風部の駆動に伴って生じる空気の流路上に配置され、前記制御部は、前記送風部の出力を変更させることで前記汚れ検出部の検出領域における風速を変更する。   In order to solve the above problems, an air purifier includes a main body case having a suction port and a blowout port, a blower unit for blowing air flowing in from the suction port from the blowout port, and an inflow from the suction port. An air purifier that cleans the air, a dirt detector that outputs an output signal according to the particle size of the detection target that passes through the detection area, and an output signal that is output from the dirt detector. A control unit that determines a particle size of a detection target and controls the air blowing unit based on the determination result, wherein the dirt detection unit is air generated by driving the air blowing unit. The control unit changes the wind speed in the detection region of the dirt detection unit by changing the output of the blower unit.

本発明の空気清浄機によれば、汚れ検出部における微粒子の検出精度を高めることができる。   According to the air cleaner of the present invention, it is possible to increase the detection accuracy of fine particles in the dirt detection unit.

実施形態における空気清浄機の斜視図である。It is a perspective view of the air cleaner in an embodiment. 同上における空気清浄機の断面図である。It is sectional drawing of the air cleaner in the same as the above. 同上における空気清浄機のほこりセンサの概略構成図である。It is a schematic block diagram of the dust sensor of an air cleaner same as the above. 同上における空気清浄機の電気的構成を示すブロック図である。It is a block diagram which shows the electrical structure of the air cleaner same as the above. 同上における空気清浄機のほこりセンサの配置態様について説明するための概略構成図である。It is a schematic block diagram for demonstrating the arrangement | positioning aspect of the dust sensor of an air cleaner same as the above. （ａ）〜（ｃ）は同上における空気清浄機の動作態様について説明するための空気清浄機の断面図である。(A)-(c) is sectional drawing of the air cleaner for demonstrating the operation | movement aspect of the air cleaner in the same as the above. （ａ）（ｂ）は同上における空気清浄機のほこりセンサの信号強度と粒子径について説明するためのグラフである。(A) (b) is a graph for demonstrating the signal intensity | strength and particle diameter of the dust sensor of an air cleaner same as the above. 別例における空気清浄機のほこりセンサの配置態様について説明するための概略構成図である。It is a schematic block diagram for demonstrating the arrangement | positioning aspect of the dust sensor of the air cleaner in another example. 別例における空気清浄機のほこりセンサの配置態様について説明するための概略構成図である。It is a schematic block diagram for demonstrating the arrangement | positioning aspect of the dust sensor of the air cleaner in another example. 別例における空気清浄機のほこりセンサの配置態様について説明するための概略構成図である。It is a schematic block diagram for demonstrating the arrangement | positioning aspect of the dust sensor of the air cleaner in another example. 別例における空気清浄機のほこりセンサの配置態様について説明するための概略構成図である。It is a schematic block diagram for demonstrating the arrangement | positioning aspect of the dust sensor of the air cleaner in another example.

以下、空気清浄機の一実施形態を図面に従って説明する。   Hereinafter, one embodiment of an air cleaner is described according to a drawing.

図１に示すように、本実施形態の空気清浄機は、略箱状の本体ケース１を有し、本体ケース１の前面側には吸込み口２が設けられる。また、本体ケース１の上面（天面）側には吹出し口３が設けられる。   As shown in FIG. 1, the air cleaner of the present embodiment has a substantially box-shaped main body case 1, and a suction port 2 is provided on the front side of the main body case 1. Further, a blowout port 3 is provided on the upper surface (top surface) side of the main body case 1.

図１及び図２に示すように、吸込み口２には空気清浄部としてのフィルタ４が着脱可能に設けられる。フィルタ４は、２種類のフィルタ４ａ，４ｂを有する。フィルタ４ａは、例えば塵埃や所謂ＰＭ２．５などを捕集する集塵フィルタとして作用し、フィルタ４ｂは臭いを除去する脱臭フィルタとして作用する。本体ケース１内には吸込み口２から流入した空気を吹出し口３から吹き出させるための送風部としてのファンモータ５が収容される。   As shown in FIG.1 and FIG.2, the suction port 2 is provided with the filter 4 as an air purifying part so that attachment or detachment is possible. The filter 4 has two types of filters 4a and 4b. The filter 4a functions as a dust collecting filter that collects dust, so-called PM2.5, for example, and the filter 4b functions as a deodorizing filter that removes odors. In the main body case 1, a fan motor 5 is accommodated as a blower for blowing air flowing in from the suction port 2 through the blowout port 3.

また、フィルタ４の前面側にはフィルタ４を覆うようにフロントパネル６が設けられる。   A front panel 6 is provided on the front side of the filter 4 so as to cover the filter 4.

フロントパネル６は、パネル用アクチュエータ６ａ（図４参照）によって全体を前後方向に移動させたり、下端部のみを前後方向に移動させたりすることが可能となっている。   The front panel 6 can be moved in the front-rear direction by the panel actuator 6a (see FIG. 4), or only the lower end can be moved in the front-rear direction.

また、吹出し口３にはルーバー７が傾動可能に設けられ、ルーバー用アクチュエータ７ａ（図４参照）によって傾動動作が実施される。   A louver 7 is provided at the outlet 3 so as to be tiltable, and a tilting operation is performed by a louver actuator 7a (see FIG. 4).

図１及び図２に示すように、本体ケース１内には汚れ検出部としてのほこりセンサ８が設けられている。   As shown in FIGS. 1 and 2, a dust sensor 8 as a dirt detection unit is provided in the main body case 1.

より具体的には、図５に示すようにほこりセンサ８はフィルタ４が設けられる流路Ｒ１とは別の流路（風路）Ｒ２に設けられる。なお、ほこりセンサ８が設けられる流路Ｒ２は下流側においてフィルタ４が設けられる流路Ｒ１とが合流するようになっている。そして、ほこりセンサ８が設けられる流路Ｒ２とフィルタ４が設けられる流路Ｒ１とが合流した合流流路Ｒ３に前記ファンモータ５が収容される。即ち、ほこりセンサ８が設けられる流路Ｒ２がファンモータ５が設けられる合流流路Ｒ３と連通した状態である。   More specifically, as shown in FIG. 5, the dust sensor 8 is provided in a flow path (air path) R2 different from the flow path R1 in which the filter 4 is provided. The flow path R2 provided with the dust sensor 8 joins the flow path R1 provided with the filter 4 on the downstream side. The fan motor 5 is housed in a merged flow path R3 where a flow path R2 in which the dust sensor 8 is provided and a flow path R1 in which the filter 4 is provided is merged. That is, the flow path R2 in which the dust sensor 8 is provided communicates with the merging flow path R3 in which the fan motor 5 is provided.

図３及び図４に示すようにほこりセンサ８は、センサハウジング９内に加熱部１０と、検出部１１とを有する。   As shown in FIGS. 3 and 4, the dust sensor 8 includes a heating unit 10 and a detection unit 11 in a sensor housing 9.

図３に示すようにセンサハウジング９は、中空であり、直線状の流路形成部１２と、流路形成部１２から逸脱した位置において検出部１１を収容する２つの検出部収容部１３，１４とを有する。   As shown in FIG. 3, the sensor housing 9 is hollow and has a linear flow path forming part 12 and two detection part accommodating parts 13 and 14 that accommodate the detection part 11 at positions deviating from the flow path forming part 12. And have.

流路形成部１２の基端部（図３において下方）には主に空気の流入が可能な開口部１２ａが形成され、流路形成部１２の先端部（図３において上方）には主に空気の流出が可能な開口部１２ｂが形成されている。   An opening 12a through which air can mainly flow is formed at the base end portion (downward in FIG. 3) of the flow path forming portion 12, and mainly at the distal end portion (upward in FIG. 3) of the flow path forming portion 12. An opening 12b through which air can flow out is formed.

流路形成部１２の内部において基端部寄りには、加熱部１０が図示しない支持部によって支持される。   The heating unit 10 is supported by a support unit (not shown) near the base end in the flow path forming unit 12.

加熱部１０は、例えば抵抗素子にて構成される。つまり、加熱部１０に対して電力供給することで生じる自身の熱によってセンサハウジング９内に上昇気流を発生させることが可能となる。なお、加熱部１０は一定の発熱を生じるものであれば抵抗素子に限らない。   The heating unit 10 is configured by a resistance element, for example. That is, it is possible to generate an updraft in the sensor housing 9 by its own heat generated by supplying power to the heating unit 10. The heating unit 10 is not limited to a resistance element as long as it generates a certain amount of heat.

また、２つの検出部収容部１３，１４は、流路形成部１２を中心に三股形状をなすように形成される。すなわち、一方の検出部収容部１３と他方の検出部収容部１４は、流路形成部１２を中心として反対側に位置するように設けられる。   Further, the two detection unit accommodating portions 13 and 14 are formed to have a three-pronged shape with the flow path forming unit 12 as a center. That is, the one detection unit accommodation unit 13 and the other detection unit accommodation unit 14 are provided so as to be positioned on the opposite sides with the flow path forming unit 12 as a center.

一方の検出部収容部１３には、検出部１１を構成する発光素子１５が収容され、他方の検出部収容部１４には、検出部１１を構成する受光素子１６が収容される。   One detector housing part 13 houses a light emitting element 15 constituting the detector 11, and the other detector housing part 14 houses a light receiving element 16 constituting the detector 11.

図４に示すように、検出部１１は、光を照射する発光素子１５と、光を受光してその光量に応じた電流信号を出力する受光素子１６と、受光素子１６から出力される電気信号から検出した微粒子の量に対応したパルス信号を変換して出力する信号変換部１７とを有する。   As shown in FIG. 4, the detection unit 11 includes a light emitting element 15 that emits light, a light receiving element 16 that receives light and outputs a current signal corresponding to the light amount, and an electrical signal output from the light receiving element 16. And a signal converter 17 that converts and outputs a pulse signal corresponding to the amount of fine particles detected from the signal.

発光素子１５は、例えば電源の印加で一方向に光を照射する発光ＬＥＤや半導体レーザーを用いることが可能である。また、受光素子１６は、例えば受光した光量に応じて導通電流が変化するフォトダイオードを用いることが可能である。   As the light emitting element 15, for example, a light emitting LED or a semiconductor laser that emits light in one direction when a power source is applied can be used. For the light receiving element 16, for example, a photodiode whose conduction current changes according to the amount of received light can be used.

発光素子１５の光の照射方向と受光素子１６の受光方向には集光レンズ１５ａ，１６ａを配置して集光することにより、検出領域Ａｒでの光量を高め、より微細な微粒子を検出できるようにしている。なお、集光レンズ１５ａ，１６ａは光量を高めるものであるため、配置しなくとも目的とする検出仕様を満足できれば省略することが可能である。   Condensing lenses 15a and 16a are arranged in the light irradiation direction of the light emitting element 15 and the light receiving direction of the light receiving element 16 to collect light so that the amount of light in the detection area Ar can be increased and finer fine particles can be detected. I have to. Since the condenser lenses 15a and 16a increase the amount of light, they can be omitted if the target detection specifications can be satisfied without being arranged.

図４に示すように、信号変換部１７は、増幅回路１８と、比較回路１９と、出力回路２０とを有する。   As shown in FIG. 4, the signal conversion unit 17 includes an amplifier circuit 18, a comparison circuit 19, and an output circuit 20.

増幅回路１８は、受光素子１６から出力される信号を、後段にて扱いやすいように増幅して比較回路１９に対して増幅した信号を出力する。   The amplification circuit 18 amplifies the signal output from the light receiving element 16 so that it can be easily handled in the subsequent stage, and outputs the amplified signal to the comparison circuit 19.

比較回路１９は、増幅回路１８から出力された信号を判定基準値となる閾値ＶＡ及びＶＢとを比較することでパルス状の信号を比較結果として出力回路２０に対して出力する。以下では、閾値ＶＡと比較した比較結果を出力Ａとし、閾値ＶＢと比較した比較結果を出力Ｂとして取り扱う。   The comparison circuit 19 compares the signal output from the amplifier circuit 18 with threshold values VA and VB serving as determination reference values, and outputs a pulsed signal to the output circuit 20 as a comparison result. Hereinafter, the comparison result compared with the threshold value VA is treated as an output A, and the comparison result compared with the threshold value VB is treated as an output B.

出力回路２０は、比較回路１９によって出力されるパルス状の信号を後述する制御部２１において取り扱いし易いように適宜変換し、変換した信号を制御部２１に対して出力する。   The output circuit 20 appropriately converts the pulse-like signal output from the comparison circuit 19 so that it can be easily handled by the control unit 21 described later, and outputs the converted signal to the control unit 21.

図４に示すように、制御部２１は、ファンモータ５と、ほこりセンサ８と、各アクチュエータ６ａ，７ａと電気的に接続され、各部を制御することで空気清浄機を統括的に制御するものである。制御部２１は、各部を制御することで、「ニオイ・煙」動作、「ハウスダスト」動作、「花粉」動作の３つのパターンで空気清浄機を制御する。   As shown in FIG. 4, the control unit 21 is electrically connected to the fan motor 5, the dust sensor 8, and the actuators 6a and 7a, and controls the air cleaner centrally by controlling each unit. It is. The control unit 21 controls each part to control the air purifier in three patterns of “odor / smoke” operation, “house dust” operation, and “pollen” operation.

図６（ａ）に示すように「ニオイ・煙」動作は、例えばほこりセンサ８において２μｍ未満の微粒子を検出した場合に、フロントパネル６全体を前方に移動させるとともにルーバー７を本体ケース１に対して略９０度となるよう上方に向けた状態でファンモータ５を駆動させる。   As shown in FIG. 6A, the “smell / smoke” operation moves the entire front panel 6 forward and moves the louver 7 relative to the main body case 1 when, for example, a dust sensor 8 detects fine particles of less than 2 μm. Then, the fan motor 5 is driven in a state of being directed upward so as to be approximately 90 degrees.

図６（ｂ）に示すように「ハウスダスト」動作は、例えばほこりセンサ８において２μｍ以上で１０μｍ未満の微粒子を検出した場合に、フロントパネル６の下方のみを前方に移動させてフロントパネル６を傾動させるとともに、ルーバー７を本体ケース１に対して略４５度となるような状態でファンモータ５を駆動させる。   As shown in FIG. 6B, in the “house dust” operation, for example, when the dust sensor 8 detects fine particles of 2 μm or more and less than 10 μm, the front panel 6 is moved forward only under the front panel 6. While tilting, the fan motor 5 is driven in a state where the louver 7 is approximately 45 degrees with respect to the main body case 1.

図６（ｃ）に示すように「花粉」動作は、例えばほこりセンサ８において１０μｍ以上の微粒子を検出した場合に、フロントパネル６の下方のみを前方に移動させてフロントパネル６を傾動させるとともに、ルーバー７を本体ケース１に対して略３０度となるような状態でファンモータ５を駆動させる。   As shown in FIG. 6 (c), for example, when the dust sensor 8 detects fine particles of 10 μm or more in the dust sensor 8, the front panel 6 is tilted by moving only the lower part of the front panel 6 forward, The fan motor 5 is driven in a state where the louver 7 is approximately 30 degrees with respect to the main body case 1.

また、本実施形態の空気清浄機では、前述したようにほこりセンサ８が設けられる流路Ｒ２がファンモータ５が設けられる合流流路Ｒ３と連通した状態であるため、ファンモータ５の回転数（出力）を変更することで流路Ｒ２における風速（風量）が変更可能となっている。なお、ファンモータ５駆動時の吹出し口３における最小風量が１．１ｍ３／ｍｉｎであり、最大風量が８．７ｍ３／ｍｉｎであり、この範囲内において変更することで流路Ｒ２における風速（風量）も変更することが可能となっている。 Moreover, in the air cleaner of this embodiment, since the flow path R2 in which the dust sensor 8 is provided is in communication with the merging flow path R3 in which the fan motor 5 is provided as described above, the rotational speed of the fan motor 5 ( By changing the output, the wind speed (air volume) in the flow path R2 can be changed. The minimum air volume at the outlet 3 when the fan motor 5 is driven is 1.1 m 3 / min and the maximum air volume is 8.7 m 3 / min. By changing within this range, the wind speed ( It is also possible to change the air volume.

次に、風量の違いによる検出信号の変化について図７（ａ）（ｂ）を用いて説明する。   Next, the change in the detection signal due to the difference in the air volume will be described with reference to FIGS.

図７（ａ）（ｂ）にはそれぞれ、粒子径の違いによる受光素子１６の信号強度（受光器信号）と制御部２１に出力されるパルス出力の波形が示されている。図７（ａ）（ｂ）における検出信号Ｓ１はおよそ１μｍであって１μｍ以上の粒子径の微粒子を検出した場合の信号強度を示している。図７（ａ）（ｂ）における検出信号Ｓ２はおよそ２μｍであって２μｍ以上の粒子径の微粒子を検出した場合の信号強度を示している。図７（ａ）（ｂ）における検出信号Ｓ３はおよそ８μｍであって８μｍ以上の粒子径の微粒子を検出した場合の信号強度を示している。図７（ａ）（ｂ）における検出信号Ｓ４は、およそ１０μｍであって１０μｍ以上の粒子径の微粒子を検出した場合の信号強度を示している。   FIGS. 7A and 7B show the signal intensity of the light receiving element 16 (light receiver signal) and the pulse output waveform output to the control unit 21 due to the difference in particle diameter. The detection signal S1 in FIGS. 7 (a) and 7 (b) indicates the signal intensity when a fine particle having a particle diameter of about 1 μm and 1 μm or more is detected. The detection signal S2 in FIGS. 7 (a) and 7 (b) indicates the signal intensity when a fine particle having a particle diameter of about 2 μm and 2 μm or more is detected. The detection signal S3 in FIGS. 7 (a) and 7 (b) indicates the signal intensity when a fine particle having a particle diameter of about 8 μm and 8 μm or more is detected. The detection signal S4 in FIGS. 7A and 7B indicates the signal intensity when a fine particle having a particle diameter of about 10 μm and 10 μm or more is detected.

また、図７（ａ）にはファンモータ５の風量が最も小さい状態である風量Ｗ１における受光素子１６の信号強度と、それに伴うパルス出力の波形を示している。そして、図７（ｂ）にはファンモータ５の風量が風量Ｗ１よりも大きい状態である風量Ｗ２における受光素子１６の信号強度と、それに伴うパルス出力の波形を示している。   FIG. 7 (a) shows the signal intensity of the light receiving element 16 at the air volume W1 where the air volume of the fan motor 5 is the smallest and the waveform of the pulse output associated therewith. FIG. 7B shows the signal intensity of the light receiving element 16 in the air volume W2 where the air volume of the fan motor 5 is larger than the air volume W1, and the pulse output waveform associated therewith.

図からわかるように、微粒子の粒子径が大きいほど、受光素子１６における信号強度が高く、それに伴って信号の出力時間も長くなっている。また図７（ａ）と図７（ｂ）を比較してわかるように、検出対象である微粒子の粒子径が同じであっても風量が異なると検出信号が異なる。より具体的には、微粒子の粒子径が同じであっても風量が小さいと検出信号が大きくなる。   As can be seen from the figure, the larger the particle size of the fine particles, the higher the signal intensity in the light receiving element 16, and the longer the signal output time. Further, as can be seen by comparing FIG. 7 (a) and FIG. 7 (b), even if the particle diameter of the fine particles to be detected is the same, the detection signal is different if the air volume is different. More specifically, even if the particle diameters of the fine particles are the same, the detection signal increases when the air volume is small.

このため、本実施形態では、風量が最も小さい状態である風量Ｗ１の状態において検出対象である微粒子が２μｍ未満か２μｍ以上かを判定するための判定基準を閾値ＶＢとし、同様に１μｍ未満か１μｍ以上かを判定するための判定基準を閾値ＶＡとして設定する。ここで、閾値ＶＢは、風量Ｗ２の状態において１０μｍ未満か１０μｍ以上かを判定するための判定基準であり、閾値ＶＡは、風量Ｗ２の状態において２μｍ未満か２μｍ以上かを判定するための判定基準として設定される。ここで、比較回路１９は、閾値ＶＡを下回った場合に出力Ａとしてオフ信号、閾値ＶＡ以上の場合に出力Ａとしてオン信号を出力する。また、比較回路１９は閾値ＶＢを下回った場合に出力Ｂとしてオフ信号、閾値ＶＢ以上の場合に出力Ｂとしてオン信号を出力する。   For this reason, in the present embodiment, the threshold value VB is used as a determination criterion for determining whether the fine particles to be detected are less than 2 μm or 2 μm or more in the state of the air volume W1, which is the smallest air volume, and similarly less than 1 μm or 1 μm. A criterion for determining whether or not the above is set as the threshold value VA. Here, the threshold value VB is a criterion for determining whether the air volume W2 is less than 10 μm or more than 10 μm, and the threshold value VA is a criterion for determining whether the air volume W2 is less than 2 μm or 2 μm or more. Set as Here, the comparison circuit 19 outputs an off signal as the output A when it is below the threshold VA, and an on signal as the output A when it is equal to or higher than the threshold VA. Further, the comparison circuit 19 outputs an off signal as the output B when it is below the threshold VB, and an on signal as the output B when it is equal to or higher than the threshold VB.

つまり、出力Ａ及び出力Ｂの状態と風量とから制御部２１は、微粒子の粒子径を判定することができる。より具体的には次の通りである。   That is, the control unit 21 can determine the particle diameter of the fine particles from the states of the output A and the output B and the air volume. More specifically, it is as follows.

制御部２１は、風量Ｗ１の場合に出力Ａ及び出力Ｂがともにオフの場合、微粒子が存在しないか１μｍ未満の粒子径であると判定する。制御部２１は、風量Ｗ１の場合に出力Ａがオン状態で、出力Ｂがオフ状態である場合、微粒子の粒子径が１μｍ以上２μｍ未満であると判定する。制御部２１は、風量Ｗ１の場合に、出力Ａ及び出力Ｂがともにオンの場合、微粒子の粒子径が２μｍ以上であると判定する。   When the output A and the output B are both off in the case of the air volume W1, the control unit 21 determines that there is no fine particle or the particle diameter is less than 1 μm. When the output A is on and the output B is off in the case of the air volume W1, the control unit 21 determines that the particle diameter of the fine particles is 1 μm or more and less than 2 μm. When the output A and the output B are both on in the case of the air volume W1, the control unit 21 determines that the particle diameter of the fine particles is 2 μm or more.

制御部２１は、風量Ｗ２の場合に出力Ａ及び出力Ｂがともにオフの場合、２μｍ未満であると判定する。制御部２１は、風量Ｗ２の場合に出力Ａがオン状態で、出力Ｂがオフ状態である場合、微粒子の粒子径が２μｍ以上１０μｍ未満であると判定する。制御部２１は、風量Ｗ２の場合に、出力Ａ及び出力Ｂがともにオンの場合、微粒子の粒子径が１０μｍ以上であると判定する。   When the output A and the output B are both off in the case of the air volume W2, the control unit 21 determines that it is less than 2 μm. When the output A is on and the output B is off in the case of the air volume W2, the control unit 21 determines that the particle diameter of the fine particles is 2 μm or more and less than 10 μm. In the case of the air volume W2, the control unit 21 determines that the particle diameter of the fine particles is 10 μm or more when both the output A and the output B are on.

上記のように構成された空気清浄機の作用（一動作例）を説明する。   The operation (one operation example) of the air cleaner configured as described above will be described.

本実施形態の空気清浄機では、使用者によって操作部が操作されることでその操作に基づいて制御部２１はファンモータ５の駆動を制御する。   In the air cleaner of the present embodiment, the operation unit is operated by the user, and the control unit 21 controls the driving of the fan motor 5 based on the operation.

また制御部２１は、ほこりセンサ８で検出された微粒子の粒子径の違いによって「ニオイ・煙」動作、「ハウスダスト」動作、「花粉」動作のいずれかの動作で空気清浄機を動作させるようになっている。より具体的には次の通りである。   Further, the control unit 21 operates the air purifier by any one of the “odor / smoke” operation, the “house dust” operation, and the “pollen” operation depending on the difference in the particle size of the fine particles detected by the dust sensor 8. It has become. More specifically, it is as follows.

制御部２１は、風量Ｗ１において出力Ａ及び出力Ｂがともにオフの場合、又は、風量Ｗ１において出力Ａがオン状態で出力Ｂがオフ状態である場合、又は、風量Ｗ２において出力Ａ及び出力Ｂがともにオフの場合に、粒子径が２μｍ未満であるとして「ニオイ・煙」動作を実施する。   When the output A and the output B are both off at the air volume W1, or when the output A is on and the output B is off at the air volume W1, the control unit 21 outputs the output A and the output B at the air volume W2. When both are off, the “odor / smoke” operation is performed assuming that the particle size is less than 2 μm.

制御部２１は、風量Ｗ１において出力Ａ及び出力Ｂがともにオンの場合、又は、風量Ｗ２において出力Ａがオン状態で出力Ｂがオフ状態である場合に、粒子径が２μｍ以上１０μｍ未満であるとして「ハウスダスト」動作を実施する。   When the output A and the output B are both on at the air volume W1, or when the output A is on and the output B is off at the air volume W2, the control unit 21 assumes that the particle diameter is 2 μm or more and less than 10 μm. Perform “house dust” operation.

制御部２１は、風量Ｗ２において出力Ａ及び出力Ｂがともにオンの場合に、粒子径が１０μｍ以上であるとして「花粉」動作を実施する。   When the output A and the output B are both on at the air volume W2, the control unit 21 performs the “pollen” operation assuming that the particle diameter is 10 μm or more.

次に、本実施形態の効果を記載する。   Next, the effect of this embodiment will be described.

（１）汚れ検出部としてのほこりセンサ８は、送風部としてのファンモータ５の駆動に伴って生じる空気の流路Ｒ２上に配置される。制御部２１は、ファンモータ５の回転数（出力）を変更させることでほこりセンサ８の検出領域Ａｒにおける風速を変更する。このようにほこりセンサ８をファンモータ５の駆動に伴って生じる空気の流路Ｒ２上に配置することで、加熱部１０の上昇気流だけでは検出領域Ａｒ内に到達させることのできない大きな粒子の微粒子をファンモータ５によって容易に検出領域Ａｒ内に到達させることができる。また、ファンモータ５の回転数を変更させることで生じるほこりセンサ８における検出信号の信号強度の変化を利用してほこりセンサ８における微粒子の粒子径の検出範囲をずらすことができる。その結果、微粒子の検出精度を高めることができる。   (1) The dust sensor 8 as a dirt detection unit is disposed on a flow path R2 of air generated in association with driving of the fan motor 5 as a blower unit. The control unit 21 changes the wind speed in the detection area Ar of the dust sensor 8 by changing the rotation speed (output) of the fan motor 5. By arranging the dust sensor 8 on the air flow path R <b> 2 generated when the fan motor 5 is driven in this way, large particles that cannot reach the detection area Ar only with the rising airflow of the heating unit 10. Can be easily reached in the detection area Ar by the fan motor 5. Further, the detection range of the particle diameter of the fine particles in the dust sensor 8 can be shifted using the change in the signal intensity of the detection signal in the dust sensor 8 that is generated by changing the rotation speed of the fan motor 5. As a result, the detection accuracy of the fine particles can be increased.

（２）ほこりセンサ８は、フィルタ４を通過する空気の流路Ｒ１上とは別の流路Ｒ２に設けられるため、フィルタ４によって生じる流路Ｒ１における風量の減少に影響されることなく、ほこりセンサ８において微粒子の検出を行うことができる。   (2) Since the dust sensor 8 is provided in the flow path R2 different from the flow path R1 of the air passing through the filter 4, the dust sensor 8 is not affected by the decrease in the air volume in the flow path R1 generated by the filter 4. The sensor 8 can detect fine particles.

（３）フィルタ４よりも上流側において本体ケース１に対して移動可能に設けられるフロントパネル６を備える。制御部２１は、パネル用アクチュエータ６ａを介してフロントパネル６を移動させて吸込み口２からの空気の流入量を調整する。これにより、ほこりセンサ８が設けられる流路Ｒ２の風速も調整することが可能となる。   (3) A front panel 6 provided to be movable relative to the main body case 1 on the upstream side of the filter 4 is provided. The controller 21 moves the front panel 6 via the panel actuator 6a to adjust the amount of air flowing in from the suction port 2. Thereby, the wind speed of the flow path R2 in which the dust sensor 8 is provided can be adjusted.

（４）制御部２１は、予め複数設定された閾値ＶＡ，ＶＢと、ほこりセンサで出力される出力信号としての検出信号とを比較回路１９にて比較し、その比較結果から検出対象の微粒子の粒子径を判定する。即ち、閾値が複数設定されるため、微粒子の粒子径の検出精度をより高めることができる。   (4) The control unit 21 compares the thresholds VA and VB set in advance with a detection signal as an output signal output from the dust sensor by the comparison circuit 19, and based on the comparison result, the detection target fine particles Determine particle size. That is, since a plurality of threshold values are set, the detection accuracy of the particle diameter of the fine particles can be further increased.

なお、上記実施形態は、以下のように変更してもよい。   In addition, you may change the said embodiment as follows.

・上記実施形態では、閾値ＶＢを風量Ｗ１の状態においては検出対象である微粒子が２μｍ未満か２μｍ以上かを判定するために、また風量Ｗ２の状態においては１０μｍ未満か１０μｍ以上かを判定するための判定基準とし設定した。また閾値ＶＡを風量Ｗ１の状態では１μｍ未満か１μｍ以上かを判定するために、また風量Ｗ２の状態においては２μｍ未満か２μｍ以上かを判定するための判定基準として設定した。しかし、閾値の設定はこの限りではなく、検出したい粒子径が判断できればよいものとする。   In the above embodiment, the threshold value VB is determined to determine whether the detection target fine particles are less than 2 μm or 2 μm or more in the state of the air volume W1, and in order to determine whether the air volume W2 is less than 10 μm or 10 μm or more. It was set as a criterion for Further, the threshold value VA is set as a criterion for determining whether the air volume W1 is less than 1 μm or 1 μm or more in the state of the air volume W1, and in the state of the air volume W2 is determined to determine whether it is less than 2 μm or 2 μm or more. However, the threshold value is not limited to this, and it is sufficient that the particle diameter to be detected can be determined.

・上記実施形態では、フィルタ４が設けられる流路Ｒ１とは異なる流路Ｒ２にほこりセンサ８を設ける構成としたが、図８に示すようにフィルタ４が設けられる流路Ｒ１にほこりセンサ８を設ける構成を採用してもよい。   In the above embodiment, the dust sensor 8 is provided in the flow path R2 different from the flow path R1 in which the filter 4 is provided. However, as shown in FIG. 8, the dust sensor 8 is provided in the flow path R1 in which the filter 4 is provided. You may employ | adopt the structure to provide.

図９に示すように、フィルタ４が設けられる流路Ｒ１の上流側及びほこりセンサ８が設けられる流路Ｒ２の上流側において同一の流路を共有する構成を採用してもよい。つまり、途中から流路Ｒ１と流路Ｒ２に分岐する構成を採用してもよい。   As shown in FIG. 9, a configuration may be adopted in which the same flow path is shared on the upstream side of the flow path R1 where the filter 4 is provided and on the upstream side of the flow path R2 where the dust sensor 8 is provided. That is, you may employ | adopt the structure branched to the flow path R1 and the flow path R2 from the middle.

図１０に示すように、合流流路Ｒ３にフィルタ４を設ける構成を採用してもよい。   As shown in FIG. 10, you may employ | adopt the structure which provides the filter 4 in the confluence | merging flow path R3.

図１１に示すように、ほこりセンサ８が設けられる流路Ｒ２内の風量を調整する風量調整部としてのダンパ３０を設ける構成を採用してもよい。なお、流路Ｒ２内の風量を調整するものであれば、ダンパ３０に限らない。   As shown in FIG. 11, a configuration may be adopted in which a damper 30 is provided as an air volume adjusting unit that adjusts the air volume in the flow path R2 in which the dust sensor 8 is provided. The damper 30 is not limited as long as it adjusts the air volume in the flow path R2.

・上記実施形態では、加熱部１０をほこりセンサ８（センサハウジング９）内に備える構成としたが、ほこりセンサ８（センサハウジング９）の外部であって開口部１２ａ近傍に備えてほこりセンサ８（センサハウジング９）内に上昇気流を発生させる構成を採用してもよい。また、加熱部１０を省略し、ファンモータ５のみによってほこりセンサ８内に気流を生じさせる構成を採用してもよい。   In the above embodiment, the heating unit 10 is provided in the dust sensor 8 (sensor housing 9). However, the dust sensor 8 (outside the dust sensor 8 (sensor housing 9) is provided near the opening 12a. A configuration in which an upward air flow is generated in the sensor housing 9) may be employed. In addition, a configuration in which the heating unit 10 is omitted and an airflow is generated in the dust sensor 8 only by the fan motor 5 may be employed.

・上記実施形態では、フロントパネル６を移動させる構成としたが、移動不能な構成、即ちフロントパネル６を固定した構成を採用してもよい。   In the above-described embodiment, the front panel 6 is moved. However, an unmovable structure, that is, a structure in which the front panel 6 is fixed may be employed.

・上記実施形態では、フロントパネル６（前面）側から室内の空気を吸い込む構成としたが、側面や背面から室内の空気を吸い込む構成を採用してもよい。この場合、吸い込む箇所に対応するように各種フィルタを設けることが好ましい。   In the above-described embodiment, the indoor air is sucked from the front panel 6 (front surface) side. However, the indoor air may be sucked from the side surface or the back surface. In this case, it is preferable to provide various filters so as to correspond to the places to be sucked.

・上記実施形態では、フィルタ４をフィルタ４ａ及びフィルタ４ｂの２つで構成したが、１枚としたり、３枚以上としたりして適宜変更してもよい。   In the above-described embodiment, the filter 4 is composed of the filter 4a and the filter 4b. However, the number of the filters 4 may be changed to one or three or more as appropriate.

・上記実施形態では特に言及していないが、例えば室内の加湿を行う加湿ユニットや、室内の除湿を行う除湿ユニットを備えた構成を更に加えてもよい。   Although not specifically mentioned in the above embodiment, for example, a configuration including a humidifying unit that humidifies the room or a dehumidifying unit that dehumidifies the room may be further added.

・上記実施形態並びに各変形例は適宜組み合わせてもよい。   -You may combine the said embodiment and each modification suitably.

以上のように、本発明にかかる空気清浄機は、ほこりセンサにおける微粒子の検出精度を高めることができるため、ほこりセンサを例えば他の空調装置などに用いる場合に上記構成を適用可能である。   As described above, since the air cleaner according to the present invention can improve the detection accuracy of the particulates in the dust sensor, the above configuration can be applied when the dust sensor is used in, for example, another air conditioner.

１ 本体ケース
２ 吸込み口
３ 吹出し口
４ フィルタ（空気清浄部）
５ ファンモータ（送風部）
６ フロントパネル
６ａ パネル用アクチュエータ（調整部）
７ ルーバー
８ ほこりセンサ（汚れ検出部）
２１ 制御部（調整部）
Ａｒ 検出領域
Ｒ１ 流路
Ｒ２ 流路
ＶＡ 閾値
ＶＢ 閾値 1 Body Case 2 Suction Port 3 Blowout Port 4 Filter (Air Cleaner)
5 Fan motor (blower)
6 Front panel 6a Panel actuator (adjustment part)
7 Louver 8 Dust sensor (dirt detector)
21 Control unit (adjustment unit)
Ar detection area R1 flow path R2 flow path VA threshold VB threshold

Claims (5)

吸込み口及び吹出し口を備えた本体ケースと、前記吸込み口から流入した空気を前記吹出し口から吹き出させるための送風部と、前記吸込み口から流入した空気を清浄する空気清浄部と、検出領域内を通る検出対象の粒子径に応じた出力信号を出力する汚れ検出部と、前記汚れ検出部で出力される出力信号に基づいて検出領域内の検出対象の粒子径を判定し、その判定結果に基づいて前記送風部を制御する制御部と、を有する空気清浄機であって、
前記汚れ検出部は、前記送風部の駆動に伴って生じる空気の流路上に配置され、
前記制御部は、前記送風部の出力を変更させることで前記汚れ検出部の検出領域における風速を変更することを特徴とする空気清浄機。 A main body case provided with a suction port and a blowout port, a blower unit for blowing air flowing in from the suction port from the blowout port, an air cleaning unit for purifying air flowing in from the suction port, and a detection area A stain detection unit that outputs an output signal corresponding to the particle size of the detection target passing through the particle, and the particle size of the detection target in the detection region is determined based on the output signal output from the stain detection unit. A control unit for controlling the air blowing unit based on the air purifier,
The dirt detection unit is disposed on a flow path of air generated along with the driving of the air blowing unit,
The said control part changes the wind speed in the detection area | region of the said dirt detection part by changing the output of the said ventilation part, The air cleaner characterized by the above-mentioned. 前記汚れ検出部は、前記空気清浄部を通過する空気の流路上とは別の流路に設けられることを特徴とする請求項１に記載の空気清浄機。   The air cleaner according to claim 1, wherein the dirt detection unit is provided in a flow path different from a flow path of air passing through the air purification unit. 前記空気清浄部よりも上流側において前記本体ケースに対して移動可能に設けられるフロントパネルを備え、
前記フロントパネルを移動させることで前記吸込み口からの空気の流入量を調整する調整部を備えたことを特徴とする請求項１又は２に記載の空気清浄機。 A front panel provided movably with respect to the main body case on the upstream side of the air cleaning unit,
The air cleaner according to claim 1, further comprising an adjustment unit that adjusts an inflow amount of air from the suction port by moving the front panel. 前記汚れ検出部への流路内の風量を調整する風量調整部が汚れ検出部の流路上に設けられることを特徴とする請求項１〜３のいずれか一項に記載の空気清浄機。   The air cleaner according to any one of claims 1 to 3, wherein an air volume adjusting unit that adjusts an air volume in the channel to the dirt detecting unit is provided on the channel of the dirt detecting unit. 前記制御部は、予め複数設定された前記閾値と、前記汚れ検出部で出力される出力信号に基づいて検出領域内の検出対象の粒子径を判定し、その判定結果に基づいて前記送風部を制御することを特徴とする請求項１〜４のいずれか一項に記載の空気清浄機。   The control unit determines a particle diameter of a detection target in a detection region based on the threshold value set in advance and an output signal output from the dirt detection unit, and determines the air blowing unit based on the determination result. It controls, The air cleaner as described in any one of Claims 1-4 characterized by the above-mentioned.
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