JP5188403B2 - Ventilation equipment - Google Patents
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- JP5188403B2 JP5188403B2 JP2009007840A JP2009007840A JP5188403B2 JP 5188403 B2 JP5188403 B2 JP 5188403B2 JP 2009007840 A JP2009007840 A JP 2009007840A JP 2009007840 A JP2009007840 A JP 2009007840A JP 5188403 B2 JP5188403 B2 JP 5188403B2
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Description
本発明は、換気装置に関するものであり、特に、送風ファンのセルフクリーニングに関する。 The present invention relates to a ventilation device, and more particularly to self-cleaning of a blower fan.
シックハウス症候群対策として、建物の２４時間（常時）換気の義務化により、換気装置が２４時間運転されることになり、送風ファンへの塵埃付着量が増加している。例えば、天井や壁等に埋め込まれ、屋内と屋外とを連通するダクトやパイプ等の風路を介して屋内の空気を換気する換気装置では、屋内空気中を浮遊している塵埃が、換気装置の送風ファンやケーシング等に付着し堆積されていく。 As a measure against sick house syndrome, the ventilation device is operated for 24 hours due to the obligatory ventilation of the building for 24 hours (always), and the amount of dust adhering to the blower fan is increasing. For example, in a ventilator that is embedded in a ceiling or wall and ventilates indoor air through air ducts such as ducts and pipes that communicate indoors and outdoors, dust floating in the indoor air It adheres to and accumulates on the blower fan and casing.
塵埃が堆積したまま換気装置を運転すると、所期の換気性能を発揮できなくなり、騒音が大きくなり、堆積した塵埃が屋内側へ落下する、等の問題がある。所期の換気性能を発揮させるためには、定期的な塵埃除去のメンテナンスが必要となるが、通常、換気装置は高所に設置されているため、着脱が困難であり、清掃作業自体が敬遠される。結果的に、ユーザは、所期の換気性能が得られないまま換気装置を使用している、という問題がある。 If the ventilator is operated while dust is accumulated, the desired ventilation performance cannot be exhibited, noise increases, and accumulated dust falls to the indoor side. Periodic dust removal maintenance is required to achieve the desired ventilation performance, but since the ventilation device is usually installed at a high place, it is difficult to attach and detach, and the cleaning work itself is avoided. Is done. As a result, there is a problem that the user is using the ventilator without obtaining the desired ventilation performance.
また、換気装置内部へ塵埃が侵入するのを防ぐために、市販のフィルタが取付けられることがあるが、フィルタの圧力損失により、所期の換気性能を発揮できなくなるばかりでなく、屋内の塵埃濃度が高い場合は、フィルタが短期間で目詰まりを起こしてしまう、という問題がある。 In addition, a commercially available filter may be installed to prevent dust from entering the inside of the ventilator. Not only will the desired ventilation performance not be achieved due to the pressure loss of the filter, but the indoor dust concentration If it is high, there is a problem that the filter is clogged in a short period of time.
フィルタによる塵埃除去性能を持続させ、汚れによる圧力損失の増加を防止するためには、フィルタの定期的な清掃や交換等のメンテナンス作業が不可欠であるが、現状では、フィルタ交換の煩わしさや、汚れたフィルタへの嫌悪感から、適切な頻度でフィルタを清掃、交換するユーザは非常に少なく、結果として、ユーザは、換気性能が低下した状態で換気装置を使用し続けることになる。 In order to maintain the dust removal performance of the filter and prevent an increase in pressure loss due to dirt, maintenance work such as periodic cleaning and replacement of the filter is indispensable. Due to the dislike of the filter, there are very few users who clean and replace the filter at an appropriate frequency, and as a result, the user continues to use the ventilator with the ventilation performance deteriorated.
上記の従来の問題を解決する方法として、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ーと、前記エアフィルターに沿って移動可能な吸引ノズルと、前記吸引ノズルに連結された塵埃吸引装置により構成されるフィルター装置を具備した空気調和機において、前記塵埃吸引装置のファンを定期的に塵埃吸引時の回転数よりも高い回転数で回転させ、ファン高速回転時の遠心力により、ファンの表面に付着した塵埃を剥離させ、塵埃吸引装置のファンに塵埃が付着、堆積することに伴う吸引風量の低下を防止する空気調和機の塵埃吸引装置の制御方法がある（例えば、特許文献１参照）。 As a method for solving the above-described conventional problems, an air filter that removes dust from the air passing through a heat exchanger, a suction nozzle that can move along the air filter, and a dust suction device that is connected to the suction nozzle In the air conditioner equipped with the filter device, the fan of the dust suction device is periodically rotated at a rotational speed higher than the rotational speed at the time of dust suction, and the centrifugal force at the time of high-speed rotation of the fan There is a method for controlling a dust suction device of an air conditioner that peels off dust adhering to the surface and prevents a reduction in the amount of suction air due to dust adhering and accumulating on the fan of the dust suction device (see, for example, Patent Document 1) ).
しかしながら、上記従来の技術によれば、ファンモータを塵埃吸引時よりも高い回転数で回転させることにより、ファンの除塵を行なっている。そのため、除塵作業時には、消費電力が増大し、騒音が発生する、という問題がある。 However, according to the above-described conventional technique, the fan is dedusted by rotating the fan motor at a higher rotational speed than when dust is sucked. Therefore, there is a problem that power consumption increases and noise is generated during dust removal work.
本発明は、上記に鑑みてなされたものであって、天井や壁等に埋め込まれ、屋内と屋外とを連通するダクトやパイプ等の風路を介して屋内の空気を換気する換気装置において、送風ファンに付着、堆積した塵埃を、消費電力を増大させず、また、騒音を発生させずに剥離させ、剥離させた塵埃を風路から屋外へ排出する換気装置を得ることを目的とする。 The present invention was made in view of the above, and is embedded in a ceiling, a wall, or the like, and in a ventilator that ventilates indoor air through an air passage such as a duct or a pipe that communicates indoors and outdoors, An object of the present invention is to obtain a ventilator that peels off dust that adheres and accumulates on a blower fan without increasing power consumption and without generating noise, and discharges the peeled dust from the air path to the outside.
上述した課題を解決し、目的を達成するために、本発明は、屋内と屋外とを連通する風路と、前記風路内に配置された送風ファンと、前記送風ファンを駆動するモータと、前記モータの運転中に、所定時間、前記風路を全閉又は半開にする風路開度調整装置と、前記モータの運転中に動作信号を受け、所定時間、前記風路開度調整装置を全閉又は半開にし、前記所定時間経過後、前記風路開度調整装置を全開にする制御装置と、を備えることを特徴とする。 In order to solve the above-described problems and achieve the object, the present invention provides an air passage that communicates indoors and outdoors, a blower fan disposed in the air passage, a motor that drives the blower fan, An air passage opening adjustment device that fully closes or half-opens the air passage for a predetermined time during operation of the motor; and an air passage opening adjustment device that receives an operation signal during operation of the motor and receives the operation signal for a predetermined time. And a control device that is fully closed or half-opened and that fully opens the air passage opening degree adjusting device after the predetermined time has elapsed .
この発明によれば、風路開度調整装置により風路内を略閉鎖空間とすることができるので、送風ファンが送風時よりも低消費電力で高速回転し、送風ファンに付着した塵埃を剥離させ、送風ファンをセルフクリーニングすることができる、という効果を奏する。 According to this invention, the air passage opening adjustment device can make the inside of the air passage a substantially closed space, so that the blower fan rotates at a higher speed with lower power consumption than when blowing air, and the dust attached to the blower fan is peeled off. The air blowing fan can be self-cleaned.
以下に、本発明にかかる換気装置の実施の形態を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。 Embodiments of a ventilator according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.
実施の形態１．
図１は、本発明の換気装置の実施の形態１を示す縦断面図であり、図２は、実施の形態１の換気装置の分解斜視図であり、図３は、空気吐出口内に設置されたシャッターの全閉状態を示す縦断面図であり、図４は、シャッターの半開状態を示す縦断面図であり、図５は、シャッターの全開状態を示す縦断面図であり、図６は、換気装置の風量とモータの消費電力及び回転数との関係を示す線図であり、図７は、実施の形態１の換気装置の運転モードを示す模式図である。
Embodiment 1 FIG.
FIG. 1 is a longitudinal sectional view showing a first embodiment of the ventilator of the present invention, FIG. 2 is an exploded perspective view of the ventilator of the first embodiment, and FIG. 3 is installed in the air discharge port. 4 is a longitudinal sectional view showing a fully closed state of the shutter, FIG. 4 is a longitudinal sectional view showing a half-opened state of the shutter, FIG. 5 is a longitudinal sectional view showing a fully opened state of the shutter, and FIG. FIG. 7 is a diagram showing the relationship between the air volume of the ventilator, the power consumption of the motor, and the rotational speed, and FIG. 7 is a schematic diagram showing the operation mode of the ventilator of the first embodiment.
図１〜図５に示すように、実施の形態１の換気装置１００は、屋内の天井の野縁９１に形成された開口９３に差し込まれ、フランジ部４０が野縁９１の下側に取付けられたスクロールケーシング６０と、スクロールケーシング６０の上部に取付けられたモータ１６と、モータ１６の回転軸に取付けられてスクロールケーシング６０内に配置された送風ファンとしての遠心式多翼ファン１７と、中央に空気吸込口１１が形成され、スクロールケーシング６０内の遠心式多翼ファン１７の吸込側（上流側）に設置された吸込側ケーシング２６と、スクロールケーシング６０の側部（下流側）に取付けられた空気吐出口２３と、を備えている。換気装置１００のフランジ部４０及び吸込側ケーシング２６は、化粧グリル３１により下側から覆われる。 As shown in FIGS. 1 to 5, the ventilator 100 according to the first embodiment is inserted into an opening 93 formed in a field edge 91 of an indoor ceiling, and the flange portion 40 is attached to the lower side of the field edge 91. The scroll casing 60, the motor 16 attached to the top of the scroll casing 60, the centrifugal multiblade fan 17 as a blower fan attached to the rotating shaft of the motor 16 and disposed in the scroll casing 60, The air suction port 11 is formed and attached to the suction side casing 26 installed on the suction side (upstream side) of the centrifugal multiblade fan 17 in the scroll casing 60 and to the side portion (downstream side) of the scroll casing 60. An air outlet 23. The flange portion 40 and the suction side casing 26 of the ventilation device 100 are covered from below by the decorative grill 31.
空気吐出口２３の嵌合部２３ａは、先細に形成され、屋外まで延びて屋内の空気を屋外へ排出するダクト１３に接続されている。空気吐出口２３内には、空気吐出口２３を開閉する風路開度調整装置としてのシャッター２４が設置されている。化粧グリル３１、空気吸込口１１、スクロールケーシング６０、空気吐出口２３及びダクト１３は、屋内と屋外とを連通する風路７０を構成している。 The fitting portion 23a of the air discharge port 23 is formed in a tapered shape and is connected to a duct 13 that extends to the outside and discharges indoor air to the outside. A shutter 24 is installed in the air discharge port 23 as an air passage opening degree adjusting device that opens and closes the air discharge port 23. The decorative grill 31, the air suction port 11, the scroll casing 60, the air discharge port 23, and the duct 13 constitute an air passage 70 that communicates indoors and outdoors.
風路開度調整装置としてのシャッター２４は、通風時（換気時）には開状態にして屋内の空気を屋外へ排出し、非通風時には閉状態として屋外からの空気や昆虫等の侵入を防止する。実施の形態１のシャッター２４は、制御装置８０により制御される電動アクチュエータにより、通風中（換気中）に風路７０の開度調整を行なうことができる。 The shutter 24 as an air passage opening degree adjusting device is opened to vent the indoor air to the outside during ventilation (ventilation) and closed to prevent the entry of air and insects from the outside when not ventilating. To do. The shutter 24 of the first embodiment can adjust the opening of the air passage 70 during ventilation (during ventilation) by an electric actuator controlled by the control device 80.
以上のように構成された換気装置１００では、モータ１６により駆動されて遠心式多翼ファン１７が回転し、化粧グリル３１及び空気吸込口１１を通して屋内の空気を吸込み、空気吐出口２３及びダクト１３を通して屋外へ排気する。このとき、屋内の空気中に浮遊している塵埃が、遠心式多翼ファン１７や吸込側ケーシング２６等に付着し堆積されていく。 In the ventilator 100 configured as described above, the centrifugal multiblade fan 17 is driven by the motor 16 to rotate and sucks indoor air through the decorative grille 31 and the air suction port 11, and the air discharge port 23 and the duct 13. Exhaust outdoors through At this time, dust floating in the indoor air adheres to and accumulates on the centrifugal multiblade fan 17, the suction-side casing 26, and the like.
遠心式多翼ファン１７は、風路７０が全閉に近い状態となって風量が減少すると、空転状態となる。そのとき、遠心式多翼ファン１７にかかる負荷は、通常の送風運転時よりも小さくなる。負荷が小さくなった遠心式多翼ファン１７のモータ１６に、送風運転時と同等の電圧を与えると、遠心式多翼ファン１７は、低抵抗で回転するので、図６に示すように、送風運転時よりも回転数が増加し、消費電力は低下する。 The centrifugal multiblade fan 17 is in an idling state when the air passage 70 is nearly fully closed and the air volume is reduced. At that time, the load applied to the centrifugal multiblade fan 17 is smaller than that during normal air blowing operation. When a voltage equivalent to that during the air blowing operation is applied to the motor 16 of the centrifugal multiblade fan 17 having a reduced load, the centrifugal multiblade fan 17 rotates with low resistance. The number of revolutions is increased and the power consumption is reduced as compared with the operation.
実施の形態１の換気装置１００は、シックハウス症候群対策として２４時間（常時）弱運転されていて、トイレ使用時等に、ユーザーが局所換気スイッチを入れて、換気装置１００を強運転へ切替えると、強運転の開始前に、動作信号が制御装置８０に送信され、制御装置８０は、シャッター２４を、所定時間、全閉又は半開にして空気吐出口２３（風路７０）を塞ぐ。遠心式多翼ファン１７は空転し、その回転数は、図７に示す羽根（送風ファン）清掃運転となり、強運転（局所換気）のときよりも大きくなる。 The ventilator 100 of the first embodiment is operated weakly for 24 hours (always) as a countermeasure against sick house syndrome, and when the user turns on the ventilator 100 to the strong operation by turning on the local ventilation switch when using the toilet, etc. Before the start of the strong operation, an operation signal is transmitted to the control device 80, and the control device 80 closes or partially opens the shutter 24 for a predetermined time to block the air discharge port 23 (the air passage 70). The centrifugal multiblade fan 17 rotates idly, and the number of rotations thereof is the blade (fan blower) cleaning operation shown in FIG. 7, which is larger than that in the strong operation (local ventilation).
このとき、遠心式多翼ファン１７の高速回転時の遠心力及び閉鎖空間での回転運動により、行き場を失った空気が、スクロールケーシング６０や吸込側ケーシング２６に当たって不規則な流れを起こし、ファン表面に付着した塵埃を剥離、離脱させる。剥離した塵埃は、遠心力により風路７０内を浮遊する。 At this time, due to the centrifugal force at the time of high-speed rotation of the centrifugal multiblade fan 17 and the rotational motion in the closed space, the air that has lost its destination hits the scroll casing 60 and the suction-side casing 26 and causes an irregular flow. Removes and removes dust adhering to the surface. The separated dust floats in the air path 70 by centrifugal force.
図７に示す所定時間の羽根（送風ファン）清掃運転後、制御装置８０がシャッター２４を全開にし、換気装置１００が通風換気状態に戻ると、遠心式多翼ファン１７の回転数は、図７に示す強運転（局所換気）となる。このとき、風路７０内を浮遊している遠心式多翼ファン１７から剥離した塵埃は、ダクト１３を通して屋外に排出される。 When the control device 80 fully opens the shutter 24 and the ventilator 100 returns to the ventilated ventilation state after the blade (blower fan) cleaning operation for a predetermined time shown in FIG. 7, the rotational speed of the centrifugal multiblade fan 17 is as shown in FIG. Strong driving (local ventilation) shown in At this time, the dust separated from the centrifugal multiblade fan 17 floating in the air passage 70 is discharged to the outside through the duct 13.
羽根（送風ファン）清掃運転時に、シャッター２４を半開状態とすれば、遠心式多翼ファン１７に付着した塵埃を剥離、離脱させ、その都度、空気吐出口２３とシャッター２４の間隙からダクト１３を通して屋外へ排出させるので、剥離した塵埃が屋内へ逆流するのを防止することができる。 If the shutter 24 is in a half-open state during the blade (blower fan) cleaning operation, the dust adhering to the centrifugal multiblade fan 17 is peeled off and separated, and each time through the gap between the air outlet 23 and the shutter 24, the duct 13 is passed through. Since the dust is discharged outdoors, it is possible to prevent the separated dust from flowing back into the room.
なお、以上の説明では、トイレ使用時等に、ユーザーが局所換気スイッチを入れて、換気装置１００を強運転へ切替え、強運転の開始前に、動作信号を制御装置８０に送信し、シャッター２４を、所定時間、全閉又は半開にして空気吐出口２３（風路７０）を塞ぐようにしたが、ユーザーがトイレ等を出るときに、局所換気スイッチを切ってモータ１６の強運転を終了させるときに、制御装置８０の動作信号を発信させるようにしてもよい。 In the above description, when the toilet is used, the user turns on the local ventilation switch to switch the ventilation device 100 to the strong operation, and before starting the strong operation, the operation signal is transmitted to the control device 80, and the shutter 24 Is closed or half-opened for a predetermined time to block the air discharge port 23 (air passage 70), but when the user leaves the toilet or the like, the local ventilation switch is turned off to end the strong operation of the motor 16. Sometimes, an operation signal of the control device 80 may be transmitted.
また、部屋の入口に人感センサー等を設置し、ユーザーが部屋へ入るときに換気装置１００の弱運転を強運転に切換えるようにし、人感センサーから制御装置８０への動作信号発信するようにしてもよい。また、制御装置８０によりモータ１６に供給する電圧を制御するようにし、上記の動作信号により、強運転時以下の電力をモータ１６に供給するようにすれば、より省電力と低騒音となる。さらにまた、シャッター２４の開閉は、手動で行なうようにしてもよい。 In addition, a human sensor or the like is installed at the entrance of the room so that when the user enters the room, the weak operation of the ventilation device 100 is switched to the strong operation, and an operation signal is transmitted from the human sensor to the control device 80. May be. Further, if the voltage supplied to the motor 16 is controlled by the control device 80 and the electric power below the strong operation is supplied to the motor 16 by the operation signal, the power saving and the noise can be further reduced. Furthermore, the shutter 24 may be opened and closed manually.
実施の形態２．
図８は、本発明の換気装置の実施の形態２の化粧グリルを示す斜視図である。実施の形態１の換気装置１００では、シャッター２４を全閉又は半開状態として風路７０を閉鎖し、閉鎖空間を作り出して遠心式多翼ファン１７を高速回転させるようにしたが、実施の形態２では、化粧グリル３１の内側（遠心式多翼ファン１７側）に、化粧グリル３１の風路の開度を調整する風路開度調整プレート３２を設置し、電動アクチュエータ及び制御装置８０により、実施の形態１のシャッター２４と同様に、風路開度調整プレート３２の開度を調整し、風路７０内に閉鎖空間を作り出すようにする。
Embodiment 2. FIG.
FIG. 8 is a perspective view showing a decorative grill according to Embodiment 2 of the ventilation device of the present invention. In the ventilator 100 of the first embodiment, the shutter 24 is fully closed or half-opened to close the air passage 70 and create a closed space to rotate the centrifugal multiblade fan 17 at a high speed. Then, on the inside of the decorative grill 31 (on the centrifugal multiblade fan 17 side), the air passage opening adjustment plate 32 for adjusting the opening of the air passage of the decorative grill 31 is installed, and is implemented by the electric actuator and control device 80. Similar to the shutter 24 of the first embodiment, the opening of the air passage opening adjustment plate 32 is adjusted to create a closed space in the air passage 70.
このように、送風ファン１７の上流側に風路開度調整装置としての風路開度調整プレート３２を設けるようにしても、実施の形態１と同様の効果を得ることができる。なお、風路開度調整プレート３２の開閉は、手動で行なうようにしてもよい。 Thus, even if the air passage opening adjustment plate 32 as the air passage opening adjustment device is provided on the upstream side of the blower fan 17, the same effect as in the first embodiment can be obtained. Note that the air path opening adjustment plate 32 may be manually opened and closed.
実施の形態２では、シャッター２４を全閉状態としなくてもよいので、遠心式多翼ファン１７の周辺は、実施の形態１のシャッター２４の半開状態と類似の状態となり、空気吐出口２３とシャッター２４の間隙から、剥離、離脱させた塵埃を、都度、排出することができ、剥離させた塵埃が屋内へ逆流するのを防止することができる。 In the second embodiment, since the shutter 24 does not have to be fully closed, the periphery of the centrifugal multiblade fan 17 is similar to the half-open state of the shutter 24 of the first embodiment, and the air discharge port 23 The dust separated and separated from the gap of the shutter 24 can be discharged each time, and the separated dust can be prevented from flowing back into the room.
以上の説明では、本発明を遠心式多翼ファン１７を備える換気装置１００に適用した例を説明したが、本発明は、他の空気調和機にも適用することができる。 Although the example which applied this invention to the ventilation apparatus 100 provided with the centrifugal multiblade fan 17 was demonstrated in the above description, this invention is applicable also to another air conditioner.
以上のように、本発明にかかる換気装置は、２４時間換気装置に有用である。 As described above, the ventilator according to the present invention is useful for a 24-hour ventilator.
１１ 空気吸込口（風路）
１３ ダクト（風路）
１６ モータ
１７ 遠心式多翼ファン（送風ファン）
２３ 空気吐出口（風路）
２３ａ 嵌合部
２４ シャッター（風路開度調整装置）
２６ 吸込側ケーシング
３１ 化粧グリル（風路）
３２ 風路開度調整プレート（風路開度調整装置）
４０ フランジ部
６０ スクロールケーシング（風路）
７０ 風路
８０ 制御装置
９１ 野縁
９３ 開口
１００ 換気装置
11 Air inlet (airway)
13 Duct (wind passage)
16 Motor 17 Centrifugal multi-blade fan (fan)
23 Air outlet (airway)
23a Fitting part 24 Shutter (airway opening adjustment device)
26 Suction side casing 31 Makeup grill (airway)
32 Airway opening adjustment plate (Airway opening adjustment device)
40 Flange 60 Scroll casing (air passage)
70 Airway 80 Control device 91 Field edge 93 Opening 100 Ventilation device
Claims (9)
前記風路内に配置された送風ファンと、
前記送風ファンを駆動するモータと、
前記モータの運転中に、所定時間、前記風路を全閉又は半開にする風路開度調整装置と、
前記モータの運転中に動作信号を受け、所定時間、前記風路開度調整装置を全閉又は半開にし、前記所定時間経過後、前記風路開度調整装置を全開にする制御装置と、
を備えることを特徴とする換気装置。 An air passage that communicates indoors and outdoors;
A blower fan disposed in the air passage;
A motor for driving the blower fan;
During operation of the motor, the air passage opening degree adjusting device that makes the air passage fully closed or half open for a predetermined time,
A control device that receives an operation signal during operation of the motor, fully closes or half-opens the air passage opening adjustment device for a predetermined time, and fully opens the air passage opening adjustment device after the predetermined time has elapsed;
A ventilation device comprising:
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| JP2009007840A JP5188403B2 (en) | 2009-01-16 | 2009-01-16 | Ventilation equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2009007840A JP5188403B2 (en) | 2009-01-16 | 2009-01-16 | Ventilation equipment |
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| JP2006194485A (en) * | 2005-01-12 | 2006-07-27 | Matsushita Electric Ind Co Ltd | Control method of dust sucking device for air conditioner |
| JP4797642B2 (en) * | 2006-01-20 | 2011-10-19 | パナソニック株式会社 | Ventilation fan air volume control device |
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