JP3666939B2 - Air cleaner - Google Patents

Air cleaner Download PDF

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Publication number
JP3666939B2
JP3666939B2 JP12784795A JP12784795A JP3666939B2 JP 3666939 B2 JP3666939 B2 JP 3666939B2 JP 12784795 A JP12784795 A JP 12784795A JP 12784795 A JP12784795 A JP 12784795A JP 3666939 B2 JP3666939 B2 JP 3666939B2
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JP
Japan
Prior art keywords
color
fan
display unit
lighting
photoelectric
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.)
Expired - Fee Related
Application number
JP12784795A
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Japanese (ja)
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JPH08318117A (en
Inventor
整治 水野
Original Assignee
松下エコシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to JP12784795A priority Critical patent/JP3666939B2/en
Publication of JPH08318117A publication Critical patent/JPH08318117A/en
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  • Filtering Of Dispersed Particles In Gases (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、光電式粉塵検知器を設けた空気清浄機に関するものである。
【0002】
【従来の技術】
近年、室内の環境を良好にするため室内の汚染空気を浄化する空気清浄機が普及してきており、光電式粉塵検知器によって検知された粉塵濃度に応じて安定した自動運転ができ、粉塵濃度を表示できる空気清浄機の要求が高まってきている。
【0003】
従来、この種の空気清浄機として特開平5−23520号公報に示されるものがあった。以下その構成について図7を参照しながら説明する。
【0004】
図に示すように、本体101の内部にモータ(図示せず)により駆動されるファン102を設け、上面に吹き出し口103を設け、前面には光電式粉塵検知器104およびフィルターホルダー105に保持されるフィルター106、107と前面カバー108を設け、光電式粉塵検知器104の検知された空気の汚れ具合に連動して、光電式粉塵検知器104の出力によってファン102を駆動しモータの回転数を切替え自動運転を行うものであった。
【0005】
【発明が解決しようとする課題】
このような従来の空気清浄機の構成では室内にいる人の活動や空気清浄機の運転に応
じて部屋の汚れ度合も変化するが、その変化する過程を正確に知ることができないという課題があった。
【0006】
本発明は上記課題を解決するもので、部屋の汚れ具合と変化状況を使用者にわかりやすく表示することにある。
【0007】
【課題を解決するための手段】
本発明の上記課題を解決するための手段は、本体の内部に設けられるファンおよびファンを駆動するモータと、前記ファンの風上に配設されるフィルターと、周囲の粉塵濃度を検知する光電式粉塵検知器と、この光電式粉塵検知器で検知された粉塵濃度に応じて制御部により通電制御される表示部を有し、この表示部は2色LEDを帯状に配列して設け、前記制御部は運転時に前記表示部の2色LED全てに通電するとともに、前記2色LEDの点灯色および点灯色毎の点灯数を変えることにより、汚染状況を識別できる構成としたものである。
【0008】
【作用】
本発明は上記した構成により、帯状に配列された2色LEDの点灯色および点灯色毎の点灯数の変化により、室内の汚染状況を容易に判断することができる。
【0009】
【実施例】
以下、本発明の実施例について図1〜図を参照しながら説明する。
【0010】
図に示すように、前面を開口し、上面に吐出口1を設け、内部にファン2を駆動するモータ3を設けた本体4と、ファン2の風上側となる前面にフィルター5と吸込口となるフロントグリル6を設け、フロントグリル6の前面には複数の2色LED7aを設けて表示部7を形成する。
【0011】
本体4の内部側方には光電式粉塵検知器8を設け、その下方左右に吸気口9を設け、上方の左右に排気口10を形成し、内部中央の吸気口9寄りに、発熱することにより上昇気流を発生させる抵抗体11を設け、上昇気流に対面して発光ダイオード12と受光ダイオード13を設け、粉塵を含んだ上昇気流に発光ダイオード12からの赤外線をあて、粉塵の粒子で反射した光を受光ダイオード13で検出し、粉塵量をカウントするように形成されている。
【0012】
また、本体4内には粉塵濃度上昇時にはモータ3を弱運転から強運転に順次切換え、粉塵濃度下降時にはモータ3を強運転から弱運転に順次切替える制御部14を設ける。制御部14は粉塵濃度上昇時において光電式粉塵検知器8の検出濃度と比較するための第1の濃度基準データを記憶し、粉塵濃度下降時において光電式粉塵検知器8の検出濃度と比較するための第2の濃度基準データを記憶している。また制御部14は表示部2色LED7aに粉塵濃度に応じて通電を行う。
【0013】
すなわち、表示部7に10個の2色LED7aを帯状に配列し、光電式粉塵検知器の出力電圧が0.8V以下であるならばすべての2色LED7aは緑色で点灯する。そして汚れ1(電圧0.9V)になると一番左端の2色LED7aが緑色から赤色に変わる。さらに汚れ4(電圧2.5V)になると左端4つの2色LED7aが緑色から赤色に変わる。このように汚れのレベルが上がるほど、そのレベルに応じた2色LED7aが順に緑から赤色に変わっていき、最終汚れ10(電圧3.6V)以上になるとすべての2色LED7aが赤色に変わるように構成する。
【0014】
上記構成において、モータ3の切替えが強ノッチ、標準ノッチ、弱ノッチによる3段階
とすると、空気が汚れていくときは、制御部14の記憶する第1の濃度基準データに従って、モータ3は汚れ1(電圧0.9V)で弱ノッチで運転を始め、汚れ4(電圧2.4V)で標準ノッチに切り替わり、汚れ8(電圧3.3V)で強ノッチに切り替わる。それに対して、空気がきれいになっていくときは、制御部14の記憶する第2の濃度基準データに従って、汚れ3(電圧2.4V)になるまでは強ノッチで運転をし続け、汚れ1(電圧1.5V)になって弱ノッチに切り替わり、出力電圧0.8V以下になってはじめて停止する。
【0015】
次に実際の運転状況を説明すると、室内でたばこを吸い始めると、光電式粉塵検知器8の出力電圧は図4に示すように出力電圧が上昇して空気清浄機が運転され、たばこの煙が除去されると出力電圧は下降するが、その電圧波形は絶えず上下に激しく変動する場合が多いものである。
【0016】
しかしながら、モータ3の回転が強ノッチから標準ノッチに、また標準ノッチから弱ノッチに切り替わるときに、濃度上昇時と濃度下降時では濃度基準デ−タは0.9Vのヒステリシスをもたせているので、光電式粉塵検知器8の出力電圧が多少変動しても、モータ3のノッチはすぐには切り替わらず安定した運転をすることができる。
【0017】
表示部7の動作は、空気がきれいなときはすべて2色LED7aを緑色の表示であらわし、汚れに応じた濃度分だけ緑色の帯が短くなり、それに伴い汚れた濃度分だけ赤色の帯が長くなり、現在の汚れ具合とその変化する過程を相対的に分かりやすく表示することができる。
【0018】
このように、本発明の空気清浄機によれば、現在の空気の汚れ具合とその汚染状況の変化が緑色の帯と赤色の帯の長さとその動きにより、相対的な長さ変化として視認されるので、一目で判別することができる。
【0019】
【発明の効果】
以上の実施例から明らかなように、本発明によれば表示部に2色LEDを帯状に配列して設け、運転時に2色LED全てに通電するとともに、前記2色LEDの点灯色および点灯色毎の点灯数を変えることにより、汚染状況を識別できる構成としたので、運転時は全ての2色LEDが帯状に点灯するとともに、点灯色毎の帯の長さとその動きにより、汚染状況が相対的な長さ変化として視認されるので、一見して空気の汚れ具合を知ることができる。
【図面の簡単な説明】
【図1】 本発明の空気清浄機の分解斜視図
【図2】 同空気清浄機の外観斜視図
【図3】 同空気清浄機の光電式粉塵検知器の概略断面図
【図4】 同光電式粉塵検知器の出力電圧の変化を示す特性グラフ図
【図5】 同運転動作説明図
【図6】 同表示部の動作説明図
【図7】 従来の空気清浄機の分解斜視図
【符号の説明】
2 ファン
3 モータ
4 本体
5 フィルター
7 表示部
7a 2色LED
8 光電式粉塵検知器
14 制御部
[0001]
[Industrial application fields]
The present invention relates to an air cleaner provided with a photoelectric dust detector.
[0002]
[Prior art]
In recent years, it is becoming popular air purifier that purifies the contaminated air in the room for improving indoor environment, it is stable automatic operation was in accordance with the dust concentration sensed by the photoelectric dust detector, the dust concentration There is an increasing demand for air cleaners that can be displayed .
[0003]
Conventionally, this type of air purifier has been disclosed in Japanese Patent Application Laid-Open No. 5-23520. The configuration will be described below with reference to FIG.
[0004]
As shown in the figure, a fan 102 driven by a motor (not shown) is provided inside a main body 101, a blow-out port 103 is provided on the upper surface, and held on a photoelectric dust detector 104 and a filter holder 105 on the front surface. Filters 106 and 107 and a front cover 108 are provided, and the fan 102 is driven by the output of the photoelectric dust detector 104 in accordance with the degree of air contamination detected by the photoelectric dust detector 104, and the rotational speed of the motor is adjusted. The automatic switching operation was performed.
[0005]
[Problems to be solved by the invention]
In such a conventional air cleaner arrangement, is a problem that it also changes the degree of dirt room in accordance with the operation of the human activities and air purifier in the room, it is impossible to know the process of the change to the correct there were.
[0006]
The present invention is intended to solve the above problems, it is to display the contamination degree and change the status of the room plainly user.
[0007]
[Means for Solving the Problems]
Means for solving the above-mentioned problems of the present invention are a fan provided inside a main body, a motor for driving the fan, a filter disposed on the wind of the fan, and a photoelectric type detecting a surrounding dust concentration. A dust detector and a display unit that is energized and controlled by the control unit according to the dust concentration detected by the photoelectric dust detector. The display unit is provided with two-color LEDs arranged in a strip shape, and the control The unit is configured to energize all the two-color LEDs of the display unit during operation and to identify the contamination status by changing the lighting color of the two-color LED and the number of lighting for each lighting color .
[0008]
[Action]
The present invention is by configuration described above, by turning the change in the number of each lighting color and lighting color of bi-color LED arranged in a band shape, the indoor pollution can be easily determined.
[0009]
【Example】
It will be described below with reference to FIGS about real施例of the present invention.
[0010]
As shown in the drawing, a main body 4 having an opening on the front surface, a discharge port 1 on the upper surface, and a motor 3 for driving the fan 2 therein, and a filter 5 and a suction port on the front side of the fan 2 on the windward side. A front grill 6 is provided, and a plurality of two-color LEDs 7 a are provided on the front surface of the front grill 6 to form a display unit 7.
[0011]
A photoelectric dust detector 8 is provided on the inner side of the main body 4, an intake port 9 is provided on the lower left and right sides thereof, an exhaust port 10 is formed on the upper left and right sides, and heat is generated near the intake port 9 in the inner center. The resistor 11 for generating the updraft is provided, the light emitting diode 12 and the light receiving diode 13 are provided facing the updraft, the infrared ray from the light emitting diode 12 is applied to the updraft containing dust, and reflected by the dust particles. Light is detected by the light receiving diode 13 and the amount of dust is counted.
[0012]
Further, a control unit 14 is provided in the main body 4 for sequentially switching the motor 3 from the weak operation to the strong operation when the dust concentration increases, and sequentially switching the motor 3 from the strong operation to the weak operation when the dust concentration decreases. The control unit 14 stores first density reference data for comparison with the detection density of the photoelectric dust detector 8 when the dust concentration increases, and compares it with the detection density of the photoelectric dust detector 8 when the dust concentration decreases. Second density reference data is stored. The control unit 14 energizes the two-color LED 7a of the display unit 7 according to the dust concentration.
[0013]
That is, if the two two-color LEDs 7a are arranged in a strip shape on the display unit 7 and the output voltage of the photoelectric dust detector is 0.8 V or less, all the two-color LEDs 7a are lit in green. When it becomes dirty 1 (voltage 0.9V), the leftmost two-color LED 7a changes from green to red. Further, when it becomes dirt 4 (voltage 2.5V), the leftmost four two-color LEDs 7a change from green to red. Thus, as the level of dirt increases, the two-color LEDs 7a corresponding to the level gradually change from green to red, and when the final dirt 10 (voltage 3.6V) or higher, all the two-color LEDs 7a turn red. Configure.
[0014]
In the above configuration, if the motor 3 is switched in three stages, ie, a strong notch, a standard notch, and a weak notch, when the air becomes dirty, the motor 3 becomes dirty 1 according to the first concentration reference data stored in the control unit 14. The operation starts with a weak notch at (voltage 0.9V), switches to a standard notch at dirt 4 (voltage 2.4V), and switches to a strong notch at dirt 8 (voltage 3.3V). On the other hand, when the air becomes clean, according to the second concentration reference data stored in the control unit 14, the operation is continued with a strong notch until the dirt 3 (voltage 2.4 V) is reached, and the dirt 1 ( The voltage switches to a weak notch at a voltage of 1.5V, and stops only when the output voltage becomes 0.8V or less.
[0015]
Next, the actual driving situation will be explained. When the cigarette starts to be smoked indoors, the output voltage of the photoelectric dust detector 8 increases as shown in FIG. When is removed, the output voltage drops, but the voltage waveform often fluctuates continuously up and down.
[0016]
However, when the rotation of the motor 3 is switched from a strong notch to a standard notch and from a standard notch to a weak notch, the concentration reference data has a hysteresis of 0.9 V at the time of concentration increase and concentration decrease. Even if the output voltage of the photoelectric dust detector 8 fluctuates somewhat, the notch of the motor 3 is not switched immediately and stable operation can be performed.
[0017]
When the air is clean , the display unit 7 displays the two-color LED 7a in green. The green band is shortened by the density corresponding to the dirt, and the red band is lengthened by the dirty density. The current state of dirt and its changing process can be displayed relatively easily.
[0018]
Thus, according to the air cleaner of the present invention, changes in the pollution and cleanliness of current air, the green band and red length and the movement of the strip, as a relative length change Since it is visually recognized, it can be distinguished at a glance.
[0019]
【The invention's effect】
As apparent from the above examples, according to the present invention provided by arranging two-color LED in a band in Table radical 113, thereby energizing the two-color LED all during operation, lighting color of the two-color LED and lighting Since the contamination status can be identified by changing the number of lighting for each color, all the two-color LEDs are lit in a strip shape during operation, and the contamination status is determined by the length of the strip for each lighting color and its movement. Since it is visually recognized as a relative change in length, it is possible to know at a glance how air is dirty.
[Brief description of the drawings]
[1] Check exploded perspective of the gas purifier Figure 2 is a schematic cross-sectional view of a photoelectric dust detector external perspective view [FIG 3] the air purifier of the air purifier of the present invention [Figure 4] exploded perspective characteristic graph Figure 5 the oPERATION operation Figure 6 diagram for describing operation of the table radical 113 [7] conventional air cleaner showing the change in the output voltage of the photoelectric dust detector Figure [Explanation of symbols]
2 Fan 3 Motor 4 Body 5 Filter 7 Display 7a 2 color LED
8 Photoelectric dust detector 14 Control unit

Claims (1)

本体の内部に設けられるファンおよびファンを駆動するモータと、前記ファンの風上に配設されるフィルターと、周囲の粉塵濃度を検知する光電式粉塵検知器と、この光電式粉塵検知器で検知された粉塵濃度に応じて制御部により通電制御される表示部を有し、この表示部は2色LEDを帯状に配列して設け、前記制御部は運転時に前記表示部の2色LED全てに通電するとともに、前記2色LEDの点灯色および点灯色毎の点灯数を変えることにより、汚染状況を識別できる構成とした空気清浄機。A fan provided in the main body, a motor for driving the fan, a filter disposed on the wind of the fan, a photoelectric dust detector for detecting the surrounding dust concentration, and detection by this photoelectric dust detector The display unit is energized and controlled by the control unit in accordance with the dust concentration , and the display unit is provided with two-color LEDs arranged in a strip shape, and the control unit applies all the two-color LEDs of the display unit during operation. An air purifier configured to be able to identify a contamination state by energizing and changing the lighting color of the two-color LED and the number of lighting for each lighting color .
JP12784795A 1995-05-26 1995-05-26 Air cleaner Expired - Fee Related JP3666939B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12784795A JP3666939B2 (en) 1995-05-26 1995-05-26 Air cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12784795A JP3666939B2 (en) 1995-05-26 1995-05-26 Air cleaner

Publications (2)

Publication Number Publication Date
JPH08318117A JPH08318117A (en) 1996-12-03
JP3666939B2 true JP3666939B2 (en) 2005-06-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP12784795A Expired - Fee Related JP3666939B2 (en) 1995-05-26 1995-05-26 Air cleaner

Country Status (1)

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* Cited by examiner, † Cited by third party
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EP1050332A3 (en) 1999-05-04 2001-05-23 Simatelex Manufactory Company Limited Air purifier
JP2003043172A (en) * 2001-07-27 2003-02-13 Higashi Nihon Medicom Kk Sheet clip with timer
JP4602609B2 (en) * 2001-08-28 2010-12-22 東芝キヤリア株式会社 Air conditioner
JP3851531B2 (en) * 2001-10-03 2006-11-29 株式会社堀場製作所 Particulate matter measuring apparatus and method
CN100340814C (en) * 2004-04-19 2007-10-03 张立勤 Full-automatic intelligent space purifier
JP2006138833A (en) * 2004-06-11 2006-06-01 Fuji Electric Systems Co Ltd Fine particle measuring device
US8021469B2 (en) * 2005-07-14 2011-09-20 Access Business Group International Llc Control methods for an air treatment system
CN103062882B (en) * 2013-01-23 2015-03-18 宋道胜 PM2.5-class purification air conditioning terminal with special-shaped filter screen and heat exchanger
CN103398421B (en) * 2013-06-21 2016-02-17 宋道胜 Fresh air conditioner PM2.5 purifies automatic flushing device
JP6212222B2 (en) * 2014-08-26 2017-10-11 シャープ株式会社 Air cleaner
JP2016090349A (en) * 2014-10-31 2016-05-23 パナソニックIpマネジメント株式会社 Particle detection sensor, dust sensor, smoke detector, air purifier, ventilator, and air conditioner
WO2018019000A1 (en) * 2016-07-27 2018-02-01 广东美的制冷设备有限公司 Method and system for detecting concentration of indoor air dust particles and household appliance

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