JP2006220412A - Air conditioner - Google Patents

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JP2006220412A
JP2006220412A JP2006050309A JP2006050309A JP2006220412A JP 2006220412 A JP2006220412 A JP 2006220412A JP 2006050309 A JP2006050309 A JP 2006050309A JP 2006050309 A JP2006050309 A JP 2006050309A JP 2006220412 A JP2006220412 A JP 2006220412A
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Prior art keywords
air conditioner
dust
air
air filter
operation time
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JP2006050309A
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Masahiro Baba
雅浩 馬場
Hisashi Hiratani
壽士 平谷
Yoshimasa Ishikawa
宜正 石川
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner not requiring periodic maintenance to have improved convenience by automatically cleaning an air filter. <P>SOLUTION: This air conditioner is provided with: the air filter collecting dust in the air; a suction nozzle removing the dust of the air filter; a cumulative operation time detection means detecting a cumulative operation time of the air conditioner; and an indoor control part deciding the cumulative operation time detected by the cumulative operation time detection means. When the cumulative operation time of the air conditioner detected by the cumulative operation time detection means exceeds a prescribed value, the indoor control part performs control such that the suction nozzle removes the dust of the air filter. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、エアフィルタの自動清掃機能付き室内機を有する空気調和機に関する。   The present invention relates to an air conditioner having an indoor unit with an air filter automatic cleaning function.

図７は従来の空気調和機の室内機７０１を示しており、図７に示すように、ファン７０２によって吸込んだ空気は熱交換器７０３で冷却もしくは加熱された後、室内へ送風される。吸込む空気に漂う塵埃が室内機７０１の本体内部へ侵入することを防ぐため、室内機７０１の吸込口裏面に沿う形でエアフィルタ７０４が折り曲げて設けられており、上面部は水平になっている。また、このエアフィルタは、付着した塵埃を手で清掃できるように着脱自在に構成されている。   FIG. 7 shows an indoor unit 701 of a conventional air conditioner. As shown in FIG. 7, air sucked by a fan 702 is cooled or heated by a heat exchanger 703 and then blown into the room. In order to prevent dust floating in the sucked air from entering the inside of the main body of the indoor unit 701, the air filter 704 is bent along the back surface of the suction port of the indoor unit 701, and the upper surface portion is horizontal. . The air filter is configured to be detachable so that attached dust can be manually cleaned.

また、エアフィルタの清掃が容易な空気調和機としては、モータで繰出し/巻き取られる帯状のフィルタと、フィルタに付着した塵埃を除去する除塵部材と、除塵部材で掻き落とした塵埃を回収するダストボックスとを有するフィルタ装置を吸入パネル吸込口の裏面に設置したものが知られている（例えば、特許文献１参照）。
特開２００１−９９４７９号公報（第３〜４頁、第１図） In addition, as an air conditioner that can easily clean the air filter, a belt-shaped filter that is fed and wound by a motor, a dust removing member that removes dust attached to the filter, and a dust box that collects dust scraped off by the dust removing member There is known a filter device having a filter device provided on the back surface of the suction panel suction port (see, for example, Patent Document 1).
JP 2001-99479 A (pages 3 to 4, FIG. 1)

しかしながら、図７に示される空気調和機においては、その使用頻度に応じてエアフィルタ７０４を室内機７０１より取り外し、水洗い、もしくは掃除機などで付着した塵埃を掃除するという定期的なメンテナンスを要する。また、定期的なメンテナンスが成されなかった場合、エアフィルタ７０４に塵埃が堆積し吸込み空気の通気抵抗が増大するため空気調和機の性能が低下、消費電力が増大するという課題があった。   However, the air conditioner shown in FIG. 7 requires periodic maintenance in which the air filter 704 is removed from the indoor unit 701 in accordance with the frequency of use and is washed with water or cleaned with dust or the like. In addition, when regular maintenance is not performed, dust accumulates on the air filter 704 and the ventilation resistance of the intake air increases, so that the performance of the air conditioner decreases and power consumption increases.

また、特許文献１に記載の構成では、駆動モータにより上下いずれかに巻き取られる帯状のフィルタに付着した塵埃がダストボックスに回収されるため、塵埃がダストボックス内の保有量を超える以前に塵埃を廃棄しなければならず、定期的なメンテナンスを要するという課題を有していた。   Further, in the configuration described in Patent Document 1, dust attached to the band-shaped filter wound up or down by the drive motor is collected in the dust box, so that the dust is discarded before the dust exceeds the possession amount in the dust box. And had the problem of requiring regular maintenance.

本発明は、従来技術の有するこのような問題点に鑑みてなされたものであり、エアフィルタを自動的に清掃することにより定期的なメンテナンスを必要としない利便性が向上した空気調和機を提供することを目的としている。   The present invention has been made in view of such problems of the prior art, and provides an air conditioner with improved convenience that does not require periodic maintenance by automatically cleaning the air filter. The purpose is to do.

上記目的を達成するために、本発明は、エアフィルタの自動清掃機能付き室内機を有する空気調和機であって、空気中の塵埃を捕集するエアフィルタと、エアフィルタの塵埃を除去する吸引ノズルと、空気調和機の累積運転時間を検出する累積運転時間検出手段と、累積運転時間検出手段が検出した累積運転時間を判定する室内制御部を備え、累積運転時間検出手段により検出された空気調和機の累積運転時間が所定の値を超えたとき、室内制御部により吸引ノズルがエアフィルタの塵埃を除去する制御を行うようにした。   In order to achieve the above object, the present invention is an air conditioner having an indoor unit with an air filter automatic cleaning function, an air filter for collecting dust in the air, and a suction for removing dust from the air filter. The air detected by the cumulative operation time detecting means comprises a nozzle, a cumulative operation time detecting means for detecting the cumulative operation time of the air conditioner, and an indoor control unit for determining the cumulative operation time detected by the cumulative operation time detecting means. When the cumulative operation time of the conditioner exceeds a predetermined value, the suction nozzle controls the air filter to remove dust from the air filter.

また、室内制御部は空気調和機への電源投入後最初に行なうエアフィルタの塵埃除去に費やされる塵埃除去時間を、最初の塵埃除去より後に行なわれる塵埃除去に費やされる塵埃除去時間よりも長い塵埃除去時間に設定するようにした。   In addition, the indoor control unit sets the dust removal time spent for the first air filter dust removal after turning on the power to the air conditioner longer than the dust removal time spent for the dust removal performed after the first dust removal. The removal time was set.

本発明によれば、空気調和機の累積運転時間を検出するための累積運転時間検出手段を設け、空気調和機の累積運転時間が所定時間を超えた場合にエアフィルタの自動清掃を行うようにしたので、定期的なメンテナンスが不要となり利便性が向上する。   According to the present invention, the cumulative operation time detecting means for detecting the cumulative operation time of the air conditioner is provided, and the air filter is automatically cleaned when the cumulative operation time of the air conditioner exceeds a predetermined time. This eliminates the need for regular maintenance and improves convenience.

また、エアフィルタを清掃後に空気調和機を初めて運転する場合は他の場合に比べて上述した所定時間を長く設定すると、不必要なエアフィルタの清掃を極力低減でき、清掃に伴う騒音や不必要な消費電力を削減することができる。   In addition, when the air conditioner is operated for the first time after cleaning the air filter, unnecessary air filter cleaning can be reduced as much as possible by setting the above-mentioned predetermined time longer than in other cases. Power consumption can be reduced.

また、空気中の塵埃量を検出するための塵埃量検出手段をさらに設け、塵埃量が所定値以上の場合にエアフィルタの自動清掃を行うようにすると、エアフィルタへの塵埃の付着量を精度よく検出してエアフィルタの自動清掃を適切な時期に行うことができ、不必要な清掃を防止することができる。   In addition, if the dust amount detection means for detecting the amount of dust in the air is further provided so that the air filter is automatically cleaned when the dust amount exceeds a predetermined value, the amount of dust adhering to the air filter can be accurately measured. It can be detected well and automatic cleaning of the air filter can be performed at an appropriate time, and unnecessary cleaning can be prevented.

さらに、累積運転時間検出手段に代えて、空気調和機の累積停止時間を検出するための累積停止時間検出手段を設け、累積停止時間が所定時間を超えた場合にエアフィルタの自動清掃を行うようにしても、定期的なメンテナンスが不要となり利便性が向上する。   Furthermore, instead of the cumulative operation time detection means, cumulative stop time detection means for detecting the cumulative stop time of the air conditioner is provided so that the air filter is automatically cleaned when the cumulative stop time exceeds a predetermined time. Even so, regular maintenance is not required and convenience is improved.

また、運転停止中における塵埃の付着はエアフィルタの上面部に集中することから、累積停止時間に基づいてエアフィルタの自動清掃を行う場合は、エアフィルタの上面部のみ清掃することにより、清掃を短時間で効率的に行うことができ、不必要な消費電力を削減することができる。   In addition, since dust adheres to the top surface of the air filter during operation stop, when performing automatic cleaning of the air filter based on the accumulated stop time, cleaning is performed by cleaning only the top surface of the air filter. This can be performed efficiently in a short time, and unnecessary power consumption can be reduced.

以下、本発明の実施の形態について、図面を参照しながら説明する。
図１は、本発明にかかる空気調和機の室内機に設けられたエアフィルタ清掃機構の斜視図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of an air filter cleaning mechanism provided in an indoor unit of an air conditioner according to the present invention.

図１において、熱交換器を通過する空気の塵埃を除去するエアフィルタは、フィルタ枠１０１と、フィルタ網１０２から構成され、フィルタ枠１０１は、中間部が折曲されて上面部１０１ａは水平もしくはそれに近い形状に、下面部１０１ｂは垂直に構成されている。エアフィルタの表面に沿って移動可能な吸引ノズル１０３が設けられている。吸引ノズル１０３はフィルタ枠１０１の上下端に設置されたガイドレール１０４により、エアフィルタと一定の距離を保って円滑に左右に移動することができる。吸引ノズル１０３には吸引ダクト１０５の一端が連結され、吸引ダクト１０５の他端は吸引装置１０６に連結される。吸引ダクト１０５は吸引ノズル１０３の移動に差し支えないように折り曲げ可能なダクトで形成される。さらに、吸引装置１０６には排気ダクト１０７が連結され、室外へ引き回される。エアフィルタ上に付着した塵埃は吸引ノズル１０３より吸引され、吸引ダクト１０５、吸引装置１０６、排気ダクト１０７を経由して室外へ排出される。   In FIG. 1, an air filter that removes dust from air passing through a heat exchanger includes a filter frame 101 and a filter net 102. The filter frame 101 is bent at an intermediate portion so that an upper surface portion 101a is horizontal or The lower surface portion 101b is vertically configured to have a shape close to that. A suction nozzle 103 that is movable along the surface of the air filter is provided. The suction nozzle 103 can smoothly move to the left and right with a certain distance from the air filter by guide rails 104 installed at the upper and lower ends of the filter frame 101. One end of a suction duct 105 is connected to the suction nozzle 103, and the other end of the suction duct 105 is connected to a suction device 106. The suction duct 105 is formed of a duct that can be bent so as not to interfere with the movement of the suction nozzle 103. Further, an exhaust duct 107 is connected to the suction device 106 and is routed outside the room. Dust adhering to the air filter is sucked from the suction nozzle 103 and discharged to the outside through the suction duct 105, the suction device 106, and the exhaust duct 107.

上記構成のフィルター装置を一般家庭用の小型空気調和機に内蔵する場合、吸引装置の小型化・小出力化を図る必要があるため、小風量で強い吸引力を発揮できるようにしなければならず、吸引ノズル１０３は吸引を一部分に絞って吸引力を強め、その位置を切り換えることでフィルター全面を清掃するように設定している。   When the filter device with the above configuration is built in a small air conditioner for general household use, it is necessary to reduce the size and output of the suction device. The suction nozzle 103 is set so as to clean the entire surface of the filter by switching the position by narrowing the suction to a part to increase the suction force.

図２Ａは吸引ノズル１０３の構造を示す分解斜視図であり、図２Ｂはその断面図である。   2A is an exploded perspective view showing the structure of the suction nozzle 103, and FIG. 2B is a sectional view thereof.

図２Ａ及び図２Ｂに示すように、吸引ノズル本体２０１にはエアフィルタ全長に相当する長いスリット状の開口部２０２を設け、さらに、この開口部２０２に沿って駆動可能なベルト２０３に吸引孔２０４を設けることで開口部２０２の一部分のみから吸引でき、かつ、ベルト２０３を駆動することで吸引する場所を変更するようにしている。また、ベルト２０３は吸引ノズル本体２０１に沿わせるため、溶着や接着等により吸引ノズル本体２０1と一体的に形成されたベルトガイド２０５によって覆われている。こうした構成により、小さい風量でも小さな吸引孔に絞られるので吸引孔の風速は増大し、小型の吸引装置でも強い吸引力を発揮することが可能となる。   As shown in FIGS. 2A and 2B, the suction nozzle body 201 is provided with a long slit-like opening 202 corresponding to the entire length of the air filter, and the suction hole 204 is formed in the belt 203 that can be driven along the opening 202. By providing this, suction can be performed from only a part of the opening 202, and the place of suction can be changed by driving the belt 203. Further, since the belt 203 follows the suction nozzle body 201, the belt 203 is covered with a belt guide 205 formed integrally with the suction nozzle body 201 by welding, bonding, or the like. With such a configuration, even with a small amount of air, the air can be narrowed down to a small suction hole, so that the wind speed of the suction hole increases, and a strong suction force can be exhibited even with a small suction device.

図３に示すように、エアフィルタの全面清掃は、吸引ノズル３０１のベルト３０２を駆動して吸引孔３０３の上下方向の位置を変え、吸引ノズル３０１をエアフィルタ３０４に沿って左右に駆動することで吸引孔３０３を図中の矢印に示すようなスイープ動作させて行われる。図３においては、吸引孔３０３はエアフィルタ全長の１／４の長さに設定されており、図中矢印に示すような２往復のスイープ動作によりエアフィルタ全面を清掃する。   As shown in FIG. 3, the entire cleaning of the air filter is performed by driving the belt 302 of the suction nozzle 301 to change the vertical position of the suction hole 303 and driving the suction nozzle 301 to the left and right along the air filter 304. The suction hole 303 is swept as shown by the arrow in the figure. In FIG. 3, the suction hole 303 is set to ¼ of the total length of the air filter, and the entire surface of the air filter is cleaned by two reciprocating sweep operations as indicated by arrows in the drawing.

また、図４は、本発明にかかる空気調和機の冷凍サイクル及び制御回路の構成を示すブロック図である。   FIG. 4 is a block diagram showing the configuration of the refrigeration cycle and control circuit of the air conditioner according to the present invention.

図４において、空気調和機４０１は、室外機４０２と、室内機４０３で構成されている。室外機４０３には圧縮機４０４、四方弁４０５、膨張弁４０６、室外熱交換器４０７、室外ファン４０８、吐出温センサ４０９、室外配管温センサ４１０、外気温センサ４１１が設けられている。室内機４０３には、室内熱交換器４１２、室内ファン４１３、エアフィルタ清掃機構４１４、室内配管温度センサ４１７、吸い込み温センサ４１８、湿度センサ４１９、空気中の塵埃量を検出する塵埃センサ４２２、また図示しない、吸い込み部、吹き出し部、上下羽根、左右羽根が設けられており、室外機４０２と室内機４０３が冷凍サイクルを形成するように接続され、四方弁４０５を切り替えることによって冷房運転と暖房運転のいずれかが行われる。   In FIG. 4, the air conditioner 401 includes an outdoor unit 402 and an indoor unit 403. The outdoor unit 403 is provided with a compressor 404, a four-way valve 405, an expansion valve 406, an outdoor heat exchanger 407, an outdoor fan 408, a discharge temperature sensor 409, an outdoor pipe temperature sensor 410, and an outdoor temperature sensor 411. The indoor unit 403 includes an indoor heat exchanger 412, an indoor fan 413, an air filter cleaning mechanism 414, an indoor piping temperature sensor 417, a suction temperature sensor 418, a humidity sensor 419, a dust sensor 422 that detects the amount of dust in the air, A suction unit, a blowing unit, upper and lower blades, left and right blades (not shown) are provided. The outdoor unit 402 and the indoor unit 403 are connected so as to form a refrigeration cycle, and the cooling operation and the heating operation are performed by switching the four-way valve 405. One of them is done.

室内熱交換器４１２は前側熱交換器４１２ａと後側熱交換器４１２ｂとに分かれており、前側熱交換器４１２ａと後側熱交換器４１２ｂとがドライ二方弁４１５とキャピラリチューブ４１６でなる絞り機構を介して接続されている。ドライ二方弁４１５を全開にすることで、冷房運転や暖房運転をおこない、ドライ二方弁４１５を閉状態にし、かつ膨張弁４０６を全開または略全開にすることで、前側熱交換器４１２ａを凝縮器、後側熱交換器４１２ｂを蒸発器とできるので、いわゆる除湿運転が可能となっている。   The indoor heat exchanger 412 is divided into a front heat exchanger 412a and a rear heat exchanger 412b, and the front heat exchanger 412a and the rear heat exchanger 412b are throttles formed by a dry two-way valve 415 and a capillary tube 416. Connected through a mechanism. When the dry two-way valve 415 is fully opened, cooling operation or heating operation is performed, the dry two-way valve 415 is closed, and the expansion valve 406 is fully opened or substantially fully opened, so that the front heat exchanger 412a is opened. Since the condenser and the rear heat exchanger 412b can be an evaporator, a so-called dehumidifying operation is possible.

また、室外機４０２、室内機４０３にはそれぞれに室外制御部４２０と室内制御部４２１とが設けられており、両制御部４２０、４２１は電気的に接続され、空気調和機４０１の各種動作を制御している。   The outdoor unit 402 and the indoor unit 403 are provided with an outdoor control unit 420 and an indoor control unit 421, respectively. The control units 420 and 421 are electrically connected to perform various operations of the air conditioner 401. I have control.

上記構成の空気調和機の動作、作用を以下説明する。   The operation and action of the air conditioner having the above configuration will be described below.

実施の形態１．
図５は、本発明の実施の形態１におけるエアフィルタの自動清掃制御を示すフローチャートである。 Embodiment 1 FIG.
FIG. 5 is a flowchart showing the automatic cleaning control of the air filter according to Embodiment 1 of the present invention.

図５に示すように、まずステップ５０１において、室内制御部４２１に設けられたタイマのカウントにより計測された空気調和機の停止時間の累積時間が所定時間を経過したかどうかを判定し、この判定がＹＥＳの場合には、エアフィルタの上面部に塵埃が堆積していると判断し、ステップ５０２においてエアフィルタの上面部のみ自動清掃する。一方ステップ５０１の判定がＮＯの場合には、ステップ５０３に進む。   As shown in FIG. 5, first, at step 501, it is determined whether or not the accumulated time of the stop time of the air conditioner measured by the timer provided in the indoor control unit 421 has passed a predetermined time. If YES, it is determined that dust has accumulated on the upper surface of the air filter, and only the upper surface of the air filter is automatically cleaned in step 502. On the other hand, if the determination in step 501 is NO, the process proceeds to step 503.

なお、上述した空気調和機の停止時間の累積時間は、吸引装置１０６を１回運転して吸引できる塵埃量が付着すると想定される空気調和機の停止中の合計時間で、例えば３６０時間に設定される。   The accumulated time of the air conditioner stop time described above is the total time during which the air conditioner is stopped, which is assumed to be attached with dust that can be sucked by operating the suction device 106 once, and is set to 360 hours, for example. Is done.

ステップ５０３においては、前回の清掃後の初めての運転かどうかが判定され、ＹＥＳの場合にはステップ５０４に進む一方、ＮＯの場合にはステップ５０５に進む。ステップ５０４においては、タイマのカウントにより計測された空気調和機の運転時間の累積時間が所定時間を経過したかどうかを判定し、この判定がＹＥＳの場合にはステップ５０６においてエアフィルタの自動清掃を実施する一方、ＮＯの場合にはステップ５０４に戻る。   In step 503, it is determined whether or not the operation is the first operation after the previous cleaning. If YES, the process proceeds to step 504. If NO, the process proceeds to step 505. In step 504, it is determined whether the accumulated time of the operation time of the air conditioner measured by the timer count has exceeded a predetermined time. If this determination is YES, the air filter is automatically cleaned in step 506. On the other hand, if NO, return to step 504.

なお、吸引装置１０６を１回運転して吸引できる塵埃量は、空気調和機を約２４時間運転してエアフィルタに付着する量と想定されるが、前回の清掃後に空気調和機を初めて運転した場合、エアフィルタへの塵埃の付着量は少ないので、上述した空気調和機の運転時間の累積時間は、例えば２４時間の２倍の４８時間に設定される。   It should be noted that the amount of dust that can be sucked by operating the suction device 106 once is assumed to be the amount that is attached to the air filter by operating the air conditioner for about 24 hours, but the air conditioner was operated for the first time after the previous cleaning. In this case, since the amount of dust adhering to the air filter is small, the cumulative time of the operation time of the air conditioner described above is set to 48 hours, which is twice as long as 24 hours, for example.

また、ステップ５０５においては、タイマのカウントにより計測された空気調和機の運転時間の累積時間が所定時間を経過したかどうを判定し、この判定がＹＥＳの場合にはステップ５０６に進む一方、ＮＯの場合にはステップ５０５に戻る。   In step 505, it is determined whether or not the accumulated time of the operation time of the air conditioner measured by the count of the timer has passed a predetermined time. If this determination is YES, the process proceeds to step 506, while NO. In this case, the process returns to step 505.

なお、清掃後の初めて運転以外の運転時はエアフィルタにある程度の塵埃が付着していると考えられるので、この場合の空気調和機の運転時間の累積時間は、吸引装置１０６を１回運転して吸引できる塵埃量が付着すると想定される空気調和機の運転中の合計時間で、例えば２４時間に設定される。   Since it is considered that a certain amount of dust adheres to the air filter during the operation other than the first operation after cleaning, the cumulative time of the operation time of the air conditioner in this case is that the suction device 106 is operated once. The total time during operation of the air conditioner that is assumed to be attached with the amount of dust that can be sucked is set to 24 hours, for example.

以上のように、本実施の形態１においては、空気調和機が停止中は、略水平に延びるエアフィルタの上面部に塵埃が付着しやすいので、当該部分のみを清掃することで、清掃時間を短縮するとともに、不必要な消費電力を削減している。また、空気調和機の累積運転時間に基づいてエアフィルタを自動的に清掃するようにしたので、清掃作業を容易かつ効率的に行うことができる。さらに、エアフィルタの清掃後、初めて空気調和機を運転する場合は、エアフィルタの清掃を判断する累積運転時間をそれ以外の場合より長く設定することで、不必要な清掃を極力抑えて清掃に伴う騒音や消費電力を削減し、利便性を向上させている。   As described above, in the first embodiment, when the air conditioner is stopped, dust easily adheres to the upper surface portion of the air filter that extends substantially horizontally. In addition to shortening, unnecessary power consumption is reduced. In addition, since the air filter is automatically cleaned based on the accumulated operation time of the air conditioner, the cleaning work can be easily and efficiently performed. In addition, when operating the air conditioner for the first time after cleaning the air filter, set the cumulative operation time for judging the cleaning of the air filter to be longer than in other cases, thereby suppressing unnecessary cleaning as much as possible. The noise and power consumption involved are reduced, improving convenience.

実施の形態２．
図６は、本発明の実施の形態２におけるエアフィルタの自動清掃制御を示すフローチャートである。 Embodiment 2. FIG.
FIG. 6 is a flowchart showing the automatic cleaning control of the air filter according to the second embodiment of the present invention.

図６に示すように、ステップ６０１において、空気中に漂う塵埃量を塵埃センサ４２２で検出し、検出された塵埃量が所定値以上の場合には、ステップ６０２に進む一方、所定値に満たない場合にはステップ６０１に戻る。ステップ６０２においては、空気中の塵埃量が所定値以上の場合に、空気調和機の運転時間の累積時間が所定時間を経過したかどうかを判定し、この判定がＹＥＳの場合には、ステップ６０３においてエアフィルタの自動清掃を実施する一方、ＮＯの場合には、ステップ６０１に戻る。   As shown in FIG. 6, in step 601, the amount of dust floating in the air is detected by the dust sensor 422. If the detected amount of dust is greater than or equal to a predetermined value, the process proceeds to step 602, but is not less than the predetermined value. If so, the process returns to step 601. In step 602, when the amount of dust in the air is greater than or equal to a predetermined value, it is determined whether the accumulated time of the operation time of the air conditioner has passed the predetermined time. If this determination is YES, step 603 is determined. On the other hand, the air filter is automatically cleaned in step S1, while in the case of NO, the process returns to step 601.

なお、上述した塵埃量の所定値とは、実験的に求めた住空間に塵埃量が多いとされる例えば１ｃｍ2／ｓに１０個の状態を指している。また、上述した空気調和機の累積運転時間の所定時間は、１ｃｍ2／ｓに１０個以上の状態で塵埃がエアフィルタに付着した場合、吸引装置１０６を１回運転して吸引できる塵埃量が付着すると想定される空気調和機の運転中の合計時間で、例えば約１２時間に設定される。 In addition, the predetermined value of the dust amount mentioned above refers to ten states at 1 cm 2 / s, for example, in which the dust amount is considered to be large in the experimentally obtained living space. In addition, the predetermined time of the cumulative operation time of the air conditioner described above is that the amount of dust that can be sucked by operating the suction device 106 once when the dust adheres to the air filter in the state of 10 or more per 1 cm 2 / s. The total time during the operation of the air conditioner assumed to be attached is set to, for example, about 12 hours.

以上のように、本実施の形態２においては、空気調和機周囲の空気中の塵埃量を検出することにより、エアフィルタへの塵埃の付着量を精度よく検出することが可能となり、エアフィルタの自動清掃を適切な時期に行うことで、不必要な清掃を防止して利便性を向上させている。   As described above, in the second embodiment, by detecting the amount of dust in the air around the air conditioner, it is possible to accurately detect the amount of dust attached to the air filter. By performing automatic cleaning at an appropriate time, unnecessary cleaning is prevented and convenience is improved.

上述したように、本発明にかかる空気調和機は、自動的に容易にエアフィルタの清掃を行うことで、定期的なメンテナンスを必要とせず、利便性が向上しているので、種々の空気調和機に適用できる。   As described above, the air conditioner according to the present invention automatically cleans the air filter automatically, so that it does not require regular maintenance and has improved convenience. Applicable to the machine.

本発明にかかる空気調和機の室内機に設けられたエアフィルタ清掃機構の斜視図The perspective view of the air filter cleaning mechanism provided in the indoor unit of the air conditioner concerning this invention 図１のエアフィルタ清掃機構に設けられた吸引ノズルの分解斜視図The disassembled perspective view of the suction nozzle provided in the air filter cleaning mechanism of FIG. 図２Ａにおける線Ａ−Ａに沿った断面図Sectional view along line AA in FIG. 2A 図２Ａの吸引ノズルによりエアフィルタの全面清掃を行う場合の模式図Schematic diagram when cleaning the entire surface of the air filter with the suction nozzle of FIG. 2A 本発明にかかる空気調和機の冷凍サイクル及び制御回路の構成を示すブロック図The block diagram which shows the structure of the refrigerating cycle of the air conditioner concerning this invention, and a control circuit. 本発明の実施の形態１におけるエアフィルタの自動清掃制御を示すフローチャートThe flowchart which shows the automatic cleaning control of the air filter in Embodiment 1 of this invention. 本発明の実施の形態２におけるエアフィルタの自動清掃制御を示すフローチャートThe flowchart which shows the automatic cleaning control of the air filter in Embodiment 2 of this invention. 従来の空気調和機の室内機の断面図Cross-sectional view of a conventional air conditioner indoor unit

符号の説明Explanation of symbols

１０１ フィルタ枠
１０１ａ 上面部
１０１ｂ 下面部
１０２ フィルタ網
１０３ 吸引ノズル
１０４ ガイドレール
１０５ 吸引ダクト
１０６ 吸引装置
１０７ 排気ダクト
２０１ 吸引ノズル本体
２０２ スリット状の開口部
２０３ ベルト
２０４ 吸引孔
２０５ ベルトガイド
３０１ 吸引ノズル
３０２ ベルト
３０３ 吸引孔
３０４ エアフィルタ
４０１ 空気調和機
４０２ 室外機
４０３ 室内機
４０４ 圧縮機
４０５ 四方弁
４０６ 膨張弁
４０７ 室外熱交換器
４０８ 室外ファン
４０９ 吐出温センサ
４１０ 室外配管温センサ
４１１ 外気温センサ
４１２ 室内熱交換器
４１２ａ 前側熱交換器
４１２ｂ 後側熱交換器
４１３ 室内ファン
４１４ エアフィルタ清掃機構
４１５ ドライ二方弁
４１６ キャピラリチューブ
４１７ 室内配管温度センサ
４１８ 吸い込み温センサ
４１９ 湿度センサ
４２０ 室外制御部
４２１ 室内制御部
４２２ 塵埃センサ DESCRIPTION OF SYMBOLS 101 Filter frame 101a Upper surface part 101b Lower surface part 102 Filter network 103 Suction nozzle 104 Guide rail 105 Suction duct 106 Suction device 107 Exhaust duct 201 Suction nozzle body 202 Slit-like opening part 203 Belt 204 Suction hole 205 Belt guide 301 Suction nozzle 302 Belt 303 Suction hole 304 Air filter 401 Air conditioner 402 Outdoor unit 403 Indoor unit 404 Compressor 405 Four-way valve 406 Expansion valve 407 Outdoor heat exchanger 408 Outdoor fan 409 Discharge temperature sensor 410 Outdoor pipe temperature sensor 411 Outdoor temperature sensor 412 Indoor heat exchange 412a Front heat exchanger 412b Rear heat exchanger 413 Indoor fan 414 Air filter cleaning mechanism 415 Dry two-way valve 416 Capillary tube 417 Indoor piping temperature sensor 418 Suction temperature sensor 419 Humidity sensor 420 Outdoor control unit 421 Indoor control unit 422 Dust sensor

Claims (2)

エアフィルタの自動清掃機能付き室内機を有する空気調和機であって、
空気中の塵埃を捕集するエアフィルタと、前記エアフィルタの塵埃を除去する吸引ノズルと、前記空気調和機の累積運転時間を検出する累積運転時間検出手段と、前記累積運転時間検出手段が検出した累積運転時間を判定する室内制御部を備え、前記累積運転時間検出手段により検出された空気調和機の累積運転時間が所定の値を超えたとき、前記室内制御部により前記吸引ノズルが前記エアフィルタの塵埃を除去する制御がなされることを特徴とする空気調和機。 An air conditioner having an indoor unit with an automatic cleaning function of an air filter,
An air filter that collects dust in the air, a suction nozzle that removes dust from the air filter, a cumulative operation time detection unit that detects a cumulative operation time of the air conditioner, and a cumulative operation time detection unit that detect An indoor control unit that determines the accumulated operation time, and when the accumulated operation time of the air conditioner detected by the accumulated operation time detection unit exceeds a predetermined value, the indoor control unit causes the suction nozzle to An air conditioner that is controlled to remove dust from a filter. 前記室内制御部は空気調和機への電源投入後最初に行なうエアフィルタの塵埃除去に費やされる塵埃除去時間を、前記最初の塵埃除去より後に行なわれる塵埃除去に費やされる塵埃除去時間よりも長い塵埃除去時間に設定することを特徴とする請求項１に記載の空気調和機。
The indoor control unit has a dust removal time spent for the dust removal of the air filter first performed after turning on the power to the air conditioner longer than a dust removal time spent for the dust removal performed after the first dust removal. It sets to removal time, The air conditioner of Claim 1 characterized by the above-mentioned.
JP2006050309A 2004-11-08 2006-02-27 Air conditioner Pending JP2006220412A (en)

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JP2010151364A (en) * 2008-12-25 2010-07-08 Panasonic Corp Air conditioner
EP2246637A1 (en) * 2008-01-25 2010-11-03 Daikin Industries, Ltd. Indoor unit of air conditioning apparatus
JP2014035089A (en) * 2012-08-07 2014-02-24 Sharp Corp Air conditioner
CN104654515A (en) * 2013-11-21 2015-05-27 珠海格力电器股份有限公司 Air conditioner accumulated dust detecting method and system
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CN115751608A (en) * 2022-11-11 2023-03-07 宁波奥克斯电气股份有限公司 Filth blockage detection method and device for air conditioner indoor unit and air conditioner

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JP2017531774A (en) * 2014-11-21 2017-10-26 コーウェイ カンパニー リミテッドＣｏｗａｙ Ｃｏ．， Ｌｔｄ． Ventilation cleaner
CN115751608A (en) * 2022-11-11 2023-03-07 宁波奥克斯电气股份有限公司 Filth blockage detection method and device for air conditioner indoor unit and air conditioner

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