JP5269224B2 - Embedded ceiling air conditioner - Google Patents

Embedded ceiling air conditioner Download PDF

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JP5269224B2
JP5269224B2 JP2012046595A JP2012046595A JP5269224B2 JP 5269224 B2 JP5269224 B2 JP 5269224B2 JP 2012046595 A JP2012046595 A JP 2012046595A JP 2012046595 A JP2012046595 A JP 2012046595A JP 5269224 B2 JP5269224 B2 JP 5269224B2
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filter
front panel
air conditioner
ceiling
housing
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JP2012107864A (en
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和也 久保
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling-embedded air conditioner having a structure of a suction opening capable of reducing pressure loss without degrading its design. <P>SOLUTION: This ceiling-embedded air conditioner includes a housing 1 opened at its lower portion, an air blower disposed at the center in the housing, a heat exchanger received in the housing in a state of surrounding the air blower, the suction opening 16 formed at a lower part of the air blower, a filter for cleaning the air sucked from the suction opening, a decorative panel 7 disposed on a lower face of the housing, and provided with a supply opening in a state of surrounding the suction opening in a plane view, a front panel 10 disposed in a state that the suction opening is closable thereby, and an elevating device mounted at a housing side or a decorative panel side for vertically movably supporting the front panel. A clearance gap between the decorative panel and the front panel formed when the front panel is lowered by the elevating device, is used as the suction opening. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

本発明は、天井埋込型空気調和機の吸込口構造の改良に関するものである。   The present invention relates to an improvement in the inlet structure of a ceiling-embedded air conditioner.

４方向吹出形の天井埋込型空気調和機では、４方向の吹出口で囲まれる中央部に送風機を配置し、その下部に吸込口が配置されている。そして、吸込口は、吸込み圧力損失（圧損）の抑制とフィルタの支持の関係から一般に格子状に構成されていた。このため、天井面との一体感が演出しづらいという意匠上の難点があった。   In a four-direction blowout type ceiling-embedded air conditioner, a blower is disposed at the center surrounded by the four-way outlets, and a suction port is disposed below the blower. And the suction inlet was generally comprised by the grid | lattice form from the relationship of suppression of suction pressure loss (pressure loss) and the support of a filter. For this reason, there was a design difficulty that it was difficult to produce a sense of unity with the ceiling surface.

また、天井埋込型空気調和機では、吸込みフィルタのメンテナンスを行うのに高所作業が必要となり、なかなかメンテナンスされず、フィルタ目詰りを起こす問題があった。   In addition, the ceiling-embedded air conditioner requires work at a high place in order to perform maintenance of the suction filter, so that there is a problem that the filter is clogged because it is not easily maintained.

そこで、送風機下部に格子状吸込口（吸込グリル）は設けず、周縁部に４方向の開口を一体形成した正面パネルを設置し、４方向にある開口のうち少なくとも１つを吸込口として利用し、その他を吹出口として構成して、化粧パネルの意匠性を向上させ、また正面パネルと共にフィルタを手元まで降下させることができる昇降手段を設けて、手元でフィルタを取り外しできるように構成したものが提案されている（例えば、特許文献１参照）。   Therefore, a grid-like suction port (suction grill) is not provided in the lower part of the blower, but a front panel in which four-direction openings are integrally formed is installed at the peripheral portion, and at least one of the four-direction openings is used as a suction port. The other is configured as a blower outlet to improve the design of the decorative panel, and is provided with lifting means that can lower the filter to the hand together with the front panel so that the filter can be removed at hand. It has been proposed (see, for example, Patent Document 1).

特開２００６−７１１３６号公報（第７頁、第３図、第４図）Japanese Patent Laying-Open No. 2006-71136 (Page 7, FIGS. 3 and 4)

しかしながら、前述のように正面パネルの周縁部に吸込口と吹出口となる開口を一体形成したものにあっては、正面パネルに一体形成できる開口の面積に設計上制限が加わるため、開口を大きくすることはできず、圧損の増大により、消費電力が上昇し、空調効率が低下するのは否めない。   However, in the case where the opening serving as the suction port and the blowout port is integrally formed at the peripheral edge of the front panel as described above, the opening area that can be formed integrally with the front panel is limited by design, so the opening is increased. It cannot be done, and it cannot be denied that the power consumption increases and the air conditioning efficiency decreases due to an increase in pressure loss.

また、正面パネルと共にフィルタを手元まで降下させて取り外すことで清掃できても、フィルタ清掃の自動化の課題は残されたままである。   Moreover, even if it can clean by dropping a filter with a front panel and removing it, the subject of automation of filter cleaning remains.

近年、空気調和機のフィルタ清掃を自動化する技術が種々提案されているが、天井埋込型の場合、フィルタから掻き出された埃が室内へ落ち易いという問題があり、このタイプの空気調和機におけるフィルタ清掃の自動化は遅れているのが実情である。   In recent years, various technologies for automating filter cleaning of an air conditioner have been proposed. However, in the case of a ceiling-embedded type, there is a problem that dust scraped from the filter easily falls into the room. The actual situation is that automation of filter cleaning in Japan is delayed.

本発明は、意匠性を損なわずに圧力損失を低減することができる吸込口構造を有する天井埋込型空気調和機を得ることを目的とする。   An object of the present invention is to provide a ceiling-embedded air conditioner having a suction port structure that can reduce pressure loss without impairing design properties.

また、フィルタ清掃を自動化するに際し、フィルタから掻き出された埃が室内へ落ちるのを抑制できるフィルタ清掃装置を有する天井埋込型空気調和機を得ることを目的とする。   Another object of the present invention is to provide a ceiling-embedded air conditioner having a filter cleaning device that can suppress dust scraped from the filter from falling into the room when automating the filter cleaning.

本発明に係る天井埋込型空気調和機は、下部が開口する筐体と、筐体の内部中央に配置された送風機と、送風機よりも上流側に設けられ、送風機により吸引された空気を清浄化するフィルタと、送風機を囲むように配置されて筐体内に収容された熱交換器と、筐体の開口の中央部分を閉塞可能に配置され、空気流通のない正面パネルと、熱交換器により熱交換された空気を吹き出す吹出口を有し、正面パネルを囲むようにして筐体の開口を正面パネルとともに覆う化粧パネルと、筐体側又は化粧パネル側に取り付けられて、正面パネルを昇降自在に支持する昇降装置と、正面パネルに取り付けられ、フィルタを上方に付勢する付勢手段と、を備え、正面パネルは、昇降装置によって、運転時、運転停止時、及びメンテナンス時に応じて昇降位置が調整され、運転停止時には、上限位置にあって化粧パネルとフラットとなり、運転時には、運転停止時よりも下降され、化粧パネルとの間に形成された間隙により、送風機と連通する吸込口を形成し、メンテナンス時には、運転時よりも下降され、付勢手段は、運転時には、上下方向においてフィルタを吸込口よりも上方に押し上げるものである。   The ceiling-embedded air conditioner according to the present invention cleans the air sucked by the blower, which is provided on the upstream side of the blower, the blower disposed in the center of the blower, the blower disposed in the center of the blower. Filter, a heat exchanger disposed so as to surround the blower and housed in the housing, a central portion of the opening of the housing being disposed so as to be able to be closed, a front panel without air circulation, and a heat exchanger It has an air outlet that blows out heat-exchanged air, covers the opening of the housing together with the front panel so as to surround the front panel, and is attached to the housing side or the decorative panel side to support the front panel so that it can be raised and lowered A lifting device and a biasing means attached to the front panel and biasing the filter upward. When the operation is stopped, it is in the upper limit position and becomes flat with the decorative panel.At the time of operation, it is lowered than when the operation is stopped, and a gap formed between the decorative panel and the suction port that communicates with the blower is formed. During maintenance, the lowering is lower than during operation, and the urging means pushes the filter above the suction port in the vertical direction during operation.

本発明の天井埋込型空気調和機によれば、昇降装置によって正面パネルを降下させることにより生じる化粧パネルと正面パネルとの間の隙間を吸込口としているので、吸込口の面積を大きく確保することができる。このため、吸込み圧損の上昇を抑えながら意匠性を向上させることができる。また、本発明の天井埋込型空気調和機によれば、運転時には上下方向においてフィルタを吸込口よりも上方に押し上げる付勢手段を備えているので、吸込口の面積を大きく確保することができ、吸込口から吸込まれた空気を全てフィルタを通過させることができる。   According to the ceiling-embedded air conditioner of the present invention, since the gap between the decorative panel and the front panel generated by lowering the front panel by the lifting device is used as the suction port, a large area of the suction port is ensured. be able to. For this reason, it is possible to improve the design while suppressing an increase in suction pressure loss. In addition, according to the ceiling-embedded air conditioner of the present invention, the urging means that pushes the filter upward in the vertical direction during operation is provided, so a large area of the suction port can be secured. All the air sucked from the suction port can pass through the filter.

本発明の実施の形態１に係る天井埋込型空気調和機の運転時の状態を下方より示す斜視図である。It is a perspective view which shows the state at the time of the driving | operation of the ceiling-embedded air conditioner which concerns on Embodiment 1 of this invention from the downward direction. 本発明の実施の形態１に係る天井埋込型空気調和機の運転停止時の状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state at the time of operation stop of the ceiling-embedded air conditioner which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る天井埋込型空気調和機の化粧パネルの正面図である。It is a front view of the decorative panel of the ceiling-embedded air conditioner according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る天井埋込型空気調和機の運転停止時の化粧パネルと正面パネルの位置関係を図３のＡ−Ａ線矢視方向より示す縦断面図である。It is a longitudinal cross-sectional view which shows the positional relationship of the decorative panel and front panel at the time of operation stop of the ceiling-embedded air conditioner concerning Embodiment 1 of this invention from the AA arrow direction of FIG. 本発明の実施の形態１に係る天井埋込型空気調和機の運転中の化粧パネルと正面パネルの位置関係を図３のＡ−Ａ線矢視方向より示す縦断面図である。It is a longitudinal cross-sectional view which shows the positional relationship of the decorative panel and front panel in driving | operation of the ceiling-embedded air conditioner which concerns on Embodiment 1 of this invention from the AA arrow direction of FIG. 本発明の実施の形態１に係る天井埋込型空気調和機のメンテナンス時の化粧パネルと正面パネルの位置関係を図３のＡ−Ａ線矢視方向より示す縦断面図である。It is a longitudinal cross-sectional view which shows the positional relationship of the decorative panel and front panel at the time of the maintenance of the ceiling-embedded air conditioner which concerns on Embodiment 1 of this invention from the AA arrow direction of FIG. 本発明の実施の形態１に係る天井埋込型空気調和機のフィルタの付勢手段の変形例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the modification of the urging means of the filter of the ceiling-embedded air conditioner which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る天井埋込型空気調和機のフィルタの付勢手段の他の変形例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the other modification of the biasing means of the filter of the ceiling-embedded air conditioner which concerns on Embodiment 1 of this invention. 本発明の実施の形態２に係る天井埋込型空気調和機の運転停止時の化粧パネルと正面パネルの位置関係を示す縦断面図である。It is a longitudinal cross-sectional view which shows the positional relationship of the decorative panel and front panel at the time of operation stop of the ceiling-embedded air conditioner which concerns on Embodiment 2 of this invention. 本発明の実施の形態２に係る天井埋込型空気調和機の運転中の化粧パネルと正面パネルの位置関係を示す縦断面図である。It is a longitudinal cross-sectional view which shows the positional relationship of the decorative panel and front panel in driving | operation of the ceiling-embedded air conditioner which concerns on Embodiment 2 of this invention. 本発明の実施の形態２に係る天井埋込型空気調和機の蛇腹フィルタの一例を示す斜視図である。It is a perspective view which shows an example of the bellows filter of the ceiling-embedded air conditioner concerning Embodiment 2 of this invention. 本発明の実施の形態２に係る天井埋込型空気調和機の蛇腹フィルタの他の例を示す斜視図である。It is a perspective view which shows the other example of the bellows filter of the ceiling-embedded air conditioner concerning Embodiment 2 of this invention. 本発明の実施の形態３に係る天井埋込型空気調和機の運転停止時の状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state at the time of operation stop of the ceiling-embedded air conditioner which concerns on Embodiment 3 of this invention. 本発明の実施の形態３に係る天井埋込型空気調和機のフィルタ清掃装置を示す斜視図である。It is a perspective view which shows the filter cleaning apparatus of the ceiling-embedded air conditioner which concerns on Embodiment 3 of this invention. 本発明の実施の形態４に係る天井埋込型空気調和機のフィルタ清掃装置を示す斜視図である。It is a perspective view which shows the filter cleaning apparatus of the ceiling-embedded air conditioner which concerns on Embodiment 4 of this invention.

実施の形態１．
以下、図示実施形態により本発明を説明する。
図１は本発明の実施の形態１における天井埋込型空気調和機の運転時の状態を下方より示す斜視図、図２はその運転停止時の状態を示す縦断面図、図３はその化粧パネルの正面図、図４は運転停止時の化粧パネルと正面パネルの位置関係を図３のＡ−Ａ線矢視方向より示す縦断面図、図５は運転中の化粧パネルと正面パネルの位置関係を図３のＡ−Ａ線矢視方向より示す縦断面図、図６はメンテナンス時の化粧パネルと正面パネルの位置関係を図３のＡ−Ａ線矢視方向より示す縦断面図である。 Embodiment 1 FIG.
The present invention will be described below with reference to illustrated embodiments.
FIG. 1 is a perspective view showing a state when the ceiling-embedded air conditioner according to Embodiment 1 of the present invention is in operation from below, FIG. 2 is a longitudinal sectional view showing the state when the operation is stopped, and FIG. Fig. 4 is a front view of the panel, Fig. 4 is a longitudinal sectional view showing the positional relationship between the decorative panel and the front panel when operation is stopped, as viewed from the direction of arrows A-A in Fig. 3, and Fig. 5 is the position of the decorative panel and front panel during operation. 3 is a longitudinal sectional view showing the relationship from the direction of arrows AA in FIG. 3, and FIG. 6 is a longitudinal sectional view showing the positional relationship between the decorative panel and the front panel during maintenance from the direction of arrows AA in FIG. .

図２のように本実施形態の天井埋込型空気調和機は、下部が開口するユニット筐体１の内部中央に、下側を吸込口とするファン２とこれを駆動するモータ３とからなる送風機が配置され、モータ３が天面側に取り付けられているとともに、ファン２の下部に、ファン２へ空気を導入するためのベルマウス４が配置されている。また、ファン２を囲むように略環状に熱交換器５が配置され、熱交換器５の下部にドレンパン６が設置されている。ドレンパン６の各辺に沿う外側には、熱交換器５の２次側と室内とを連通させる開口部があり、化粧パネル７の開口部と連通して吹出口８を構成している。また、吹出口８にはベーン９が取り付けられ、吹出方向の調整が可能となっている。また、ファン２の下部には、フィルタ１１及び正面パネル１０が化粧パネル７の中央に嵌め込み可能に配置され、フィルタ１１は、正面パネル１０上に付勢手段となるコイル状の圧縮ばね１２を介して弾性支持され、正面パネル１０は、筐体側すなわち化粧パネル７に取り付けられた昇降装置１４にワイヤ１３を介して昇降自在に吊下支持されている。したがって、フィルタ１１は、昇降装置１４による正面パネル１０の昇降動作に伴って昇降可能となっている。なお、圧縮ばね１２は、正面パネル１０の４隅あるいは４辺の略中央部にそれぞれ配置することが望ましい。   As shown in FIG. 2, the ceiling-embedded air conditioner according to the present embodiment includes a fan 2 having a lower side as a suction port and a motor 3 that drives the fan 2 at the center of the inside of the unit housing 1 that is open at the bottom. A blower is disposed, the motor 3 is attached to the top surface side, and a bell mouth 4 for introducing air into the fan 2 is disposed below the fan 2. A heat exchanger 5 is arranged in a substantially annular shape so as to surround the fan 2, and a drain pan 6 is installed at the lower part of the heat exchanger 5. On the outer side along each side of the drain pan 6, there is an opening for communicating the secondary side of the heat exchanger 5 with the room, and an air outlet 8 is configured to communicate with the opening of the decorative panel 7. Moreover, the vane 9 is attached to the blower outlet 8, and adjustment of the blowout direction is possible. Further, a filter 11 and a front panel 10 are disposed below the fan 2 so as to be fitted in the center of the decorative panel 7, and the filter 11 is interposed on the front panel 10 via a coiled compression spring 12 serving as an urging means. The front panel 10 is suspended and supported by a lifting device 14 attached to the casing side, that is, the decorative panel 7 so as to be lifted and lowered via a wire 13. Therefore, the filter 11 can be moved up and down as the front panel 10 is moved up and down by the lifting device 14. It is desirable that the compression springs 12 are respectively disposed at the four corners or substantially central portions of the four sides of the front panel 10.

これを更に詳述すると、昇降装置１４は、モータ、ワイヤ１３、及びリールで構成され、ワイヤ１３の一端は正面パネル１０の４隅を吊下げるように引回され、他端はリールに巻き取られており、リモコン等のスイッチ操作によりモータでリールを回転させ、ワイヤ１３を巻取り、またはワイヤ１３を繰出すことで、正面パネル１０を昇降させる機能を持っている。すなわち、昇降装置１４は、通常は図示しない制御装置の指示により自動的に動作し、空気調和機の運転停止時には、ワイヤ１３を巻取って正面パネル１０を化粧パネル７側に収納させて吸込口を閉塞し（図２及び図４）、運転時には、ワイヤ１３を所定長さ繰出して正面パネル１０を下降させ、これにより生じる化粧パネル７と正面パネル１０との間の隙間を吸込口１６とする（図１及び図５）ようにワイヤ１３の繰出量を調整する。また、リモコン等のスイッチ操作によってワイヤ１３を更に強制的に繰出させることができ、これによってメンテナンス時にはフィルタ１１を正面パネル１０と共に手元まで降下させることができる。このため、天井に据え付けられた空気調和機のフィルタ１１をメンテナンス作業者が容易に取り外すことができるようになっている。   More specifically, the lifting device 14 includes a motor, a wire 13, and a reel. One end of the wire 13 is drawn so as to hang four corners of the front panel 10, and the other end is wound around the reel. The front panel 10 has a function of moving up and down by rotating a reel by a motor by a switch operation of a remote controller or the like and winding the wire 13 or feeding the wire 13. That is, the lifting device 14 normally operates automatically in response to an instruction from a control device (not shown). When the operation of the air conditioner is stopped, the wire 13 is wound and the front panel 10 is accommodated on the decorative panel 7 side to suck in the suction port. (FIGS. 2 and 4), and during operation, the wire 13 is fed out by a predetermined length to lower the front panel 10, and the gap between the decorative panel 7 and the front panel 10 generated thereby is used as the suction port 16. The feeding amount of the wire 13 is adjusted as shown in FIGS. In addition, the wire 13 can be further forcibly drawn out by a switch operation of a remote controller or the like, whereby the filter 11 can be lowered together with the front panel 10 to the hand during maintenance. For this reason, the maintenance worker can easily remove the filter 11 of the air conditioner installed on the ceiling.

なお、ユニット筐体１側の化粧パネル７には、フィルタ１１の上端周縁部と係合してその筐体内奥部への移動を制限する突起部１５が設けられ、通常は突起部１５のストッパ機能により、圧縮ばね１２による付勢力が常時働くようになっている。これにより、吸込口１６からベルマウス４へ至る風路の途中が確実にフィルタ１１で覆われて、吸込口１６から吸込んだ空気が全てフィルタ１１を通過し、清浄されるようになっている。   The decorative panel 7 on the unit housing 1 side is provided with a protrusion 15 that engages with the peripheral edge of the upper end of the filter 11 and restricts the movement to the inner back of the filter 11. Due to the function, the urging force by the compression spring 12 is always working. Thereby, the middle of the air path from the suction port 16 to the bell mouth 4 is surely covered with the filter 11, and all the air sucked from the suction port 16 passes through the filter 11 and is cleaned.

次に、本実施形態の天井埋込型空気調和機の動作について図１乃至図６に基づき説明する。前述のように構成された天井埋込型空気調和機は、一般に「４方向カセット型」と呼ばれ、ファン２の１次側は下方を向いており、室内から空気を吸込む。吸込まれた空気はフィルタ１１を通過し、埃等が取り除かれ、熱交換器５へと吹き付けられる。熱交換器５では空気と冷媒との熱交換が行われる。熱交換器５を通過する間に熱をもらう、あるいは熱を奪われた空気は、吹出口８より室内へ吹出される。   Next, the operation of the ceiling-embedded air conditioner according to this embodiment will be described with reference to FIGS. The ceiling-embedded air conditioner configured as described above is generally called a “four-way cassette type”, and the primary side of the fan 2 faces downward, and sucks air from the room. The sucked air passes through the filter 11, dust and the like are removed, and the air is blown to the heat exchanger 5. In the heat exchanger 5, heat exchange between the air and the refrigerant is performed. Air that has received heat or has been deprived of heat while passing through the heat exchanger 5 is blown out into the room through the air outlet 8.

運転停止時には、図２及び図４のように正面パネル１０は化粧パネル７に収納され、天井面とフラットな印象を演出する。このとき、正面パネル１０上に載置された圧縮ばね１２によって支持されているフィルタ１１は、化粧パネル７の突起部１５によってユニット筐体内奥部への移動を制限され、圧縮ばね１２は縮み状態となり、正面パネル１０、フィルタ１１が化粧パネル７の厚み内に収まる。   When the operation is stopped, the front panel 10 is housed in the decorative panel 7 as shown in FIGS. 2 and 4 and produces a flat impression with the ceiling surface. At this time, the filter 11 supported by the compression spring 12 placed on the front panel 10 is restricted from moving into the inner part of the unit housing by the protrusion 15 of the decorative panel 7, and the compression spring 12 is in a contracted state. Thus, the front panel 10 and the filter 11 are within the thickness of the decorative panel 7.

次に、運転時には、図１及び図５のように正面パネル１０は昇降装置１４がワイヤ１３を繰り出すことによって降下し、化粧パネル７との間に吸込口１６を形成する。この時、フィルタ１１は圧縮ばね１２のばね力によって突起部１５に押さえ付けられており、吸込口１６からベルマウス４へ至る風路の途中がフィルタ１１で覆われている。このため、吸込口１６から吸込まれた空気は全てフィルタ１１を通過し、清浄され、ファン２へ導かれる。   Next, as shown in FIGS. 1 and 5, the front panel 10 descends when the elevating device 14 feeds the wire 13 during operation, and forms a suction port 16 between the front panel 10 and the decorative panel 7. At this time, the filter 11 is pressed against the protrusion 15 by the spring force of the compression spring 12, and the midway of the air path from the suction port 16 to the bell mouth 4 is covered with the filter 11. For this reason, all the air sucked from the suction port 16 passes through the filter 11, is purified, and is guided to the fan 2.

このように、正面パネル１０を降下させることによって、吸込口１６を正面パネル１０の全周に亘って正面パネル１０の面方向に大きく形成することができる。このため、意匠性を損なわずに圧力損失を低減することができる。   Thus, by lowering the front panel 10, the suction port 16 can be largely formed in the surface direction of the front panel 10 over the entire circumference of the front panel 10. For this reason, pressure loss can be reduced without impairing the design.

なお、従来のグリル（網目）を吸込口とした場合においても、フィルタを支持するためであったり、汚れたフィルタの目隠しとなるようにするために、グリルの開口率はある程度制限されるところがあり、多少なりとも吸込み圧損を生じていたが、本発明のように吸込口を正面パネル１０の面に沿う方向に形成することで、吸込口の開口率を略１００％とすることができ、吸込み圧損を更に軽減することが可能となる。   Even when a conventional grill (mesh) is used as a suction port, the opening ratio of the grill may be limited to some extent in order to support the filter or to cover the dirty filter. Although the suction pressure loss occurred to some extent, by forming the suction port in the direction along the surface of the front panel 10 as in the present invention, the opening rate of the suction port can be made approximately 100%. The pressure loss can be further reduced.

さらに、フィルタ１１の清掃やメンテナンスの際には、昇降装置１４から更にワイヤ１３を繰り出させ、正面パネル１０、圧縮ばね１２、フィルタ１１を一体に手元まで降下させて低所で作業を行い、作業後は昇降装置１４によりワイヤ１３を巻き取ることで、正面パネル１０、圧縮ばね１２、フィルタ１１を一体に上昇させ、正規位置まで復帰させることができるので、メンテナンス時の作業性が向上する。   Further, when the filter 11 is cleaned and maintained, the wire 13 is further drawn out from the lifting device 14 and the front panel 10, the compression spring 12, and the filter 11 are lowered integrally to work at a low place. After that, the front panel 10, the compression spring 12, and the filter 11 can be raised integrally by winding the wire 13 with the lifting device 14, and the workability during maintenance is improved.

このように、本実施形態の天井埋込型空気調和機においては、フィルタ１１を圧縮ばね１２によって正面パネル１０に支持するとともに、化粧パネル７にフィルタ１１の上端周縁部と係合してその筐体内奥部への移動を制限する突起部１５を設けているので、運転停止時には化粧パネル７内に正面パネル１０、圧縮ばね１２、及びフィルタ１１をコンパクトに収納することができ、化粧パネル７全体に天井面との一体感を持たせることができる。   As described above, in the ceiling-embedded air conditioner of the present embodiment, the filter 11 is supported on the front panel 10 by the compression spring 12, and the decorative panel 7 is engaged with the upper peripheral edge of the filter 11 to Since the protrusion 15 that restricts the movement to the inner part of the body is provided, the front panel 10, the compression spring 12, and the filter 11 can be stored compactly in the decorative panel 7 when the operation is stopped. Can have a sense of unity with the ceiling surface.

また、運転時には、フィルタ１１を化粧パネル７側に保持しながら化粧パネル７と降下した正面パネル１０との間の隙間を吸込口１６として形成し、フィルタ１１を吸込口１６の２次側とするとともに、突起部１５のストッパ機能により、圧縮ばね１２による付勢力が常時働くようにしているので、吸込口１６の面積を大きく確保することができて、吸込み圧損の上昇を抑えながら意匠性を向上させることができるとともに、吸込口１６からベルマウス４へ至る風路の途中をフィルタ１１で覆うことができる。このため、吸込口１６から吸込まれた空気を全てフィルタ１１を通過させることができて、塵埃の除去など、清浄効果を高めることができる。   Further, during operation, a gap between the decorative panel 7 and the lowered front panel 10 is formed as the suction port 16 while holding the filter 11 on the decorative panel 7 side, and the filter 11 is used as the secondary side of the suction port 16. At the same time, the urging force by the compression spring 12 is always applied by the stopper function of the protrusion 15, so that a large area of the suction port 16 can be secured, and the design is improved while suppressing an increase in suction pressure loss. In addition, the filter 11 can cover the middle of the air path from the suction port 16 to the bell mouth 4. For this reason, all the air suck | inhaled from the suction inlet 16 can be allowed to pass through the filter 11, and the cleaning effects, such as removal of dust, can be improved.

さらに、正面パネル１０を運転時よりさらに降下させることで、フィルタ１１も共に降下させ、これによってフィルタ１１のメンテナンスが手元でできるため、フィルタの清掃を行う周期を短くすることが容易となり、フィルタ目詰まりによる空調効率の低下を避けることができる。また、空調空間の清浄化に貢献することができる。   Furthermore, since the front panel 10 is further lowered from the time of operation, the filter 11 is also lowered, so that the maintenance of the filter 11 can be performed at hand. A decrease in air conditioning efficiency due to clogging can be avoided. Moreover, it can contribute to the purification of the air-conditioned space.

なお、ここではフィルタ１１の付勢手段としてコイル状の圧縮ばね１２を例に挙げて説明したが、これに限るものでなく、例えば図７に示すパンタグラフ１７や、図８に示す板ばね１８の採用も可能であり、このような場合でもコイル状圧縮ばね方式のものと同等の作用、効果を期待することができる。   Here, the coil-shaped compression spring 12 has been described as an example of the biasing means of the filter 11, but the present invention is not limited to this. For example, the pantograph 17 shown in FIG. 7 or the leaf spring 18 shown in FIG. Even in such a case, the same action and effect as those of the coiled compression spring system can be expected.

実施の形態２．
図９は本発明の実施の形態２に係る天井埋込型空気調和機の運転停止時の化粧パネルと正面パネルの位置関係を示す縦断面図、図１０はその運転中の化粧パネルと正面パネルの位置関係を示す縦断面図であり、各図中、前述の実施の形態１のものと同一部分には同一符号を付してある。なお説明にあたっては前述の図１乃至図３を参照するものとする。 Embodiment 2. FIG.
9 is a longitudinal sectional view showing the positional relationship between the decorative panel and the front panel when the operation of the ceiling-embedded air conditioner according to Embodiment 2 of the present invention is stopped, and FIG. 10 is the decorative panel and the front panel during operation. FIG. 2 is a longitudinal sectional view showing the positional relationship, and in each figure, the same reference numerals are given to the same parts as those in the first embodiment. In the description, reference is made to FIG. 1 to FIG.

本実施の形態の天井埋込型空気調和機は、フィルタ１９が、圧縮ばねとなるスプリング芯材を有し吸込口１６を覆う筒状の蛇腹から形成され、正面パネル１０上に上下方向伸縮自在に載置されて構成されている点が前述の実施の形態１のものと異なっている。なお、蛇腹の弾性力による伸縮可能なストロークは吸込口１６の高さよりも大きくなるように設定されている。それ以外の昇降装置等を含む構成は前述の実施の形態１と同様である。   In the ceiling-embedded air conditioner of the present embodiment, the filter 19 is formed from a cylindrical bellows having a spring core material serving as a compression spring and covering the suction port 16, and is vertically extendable on the front panel 10. Is different from that of the first embodiment described above. The stroke that can be expanded and contracted by the elastic force of the bellows is set to be larger than the height of the suction port 16. Other configurations including the lifting device and the like are the same as those in the first embodiment.

次に、本実施形態の天井埋込型空気調和機の動作について図９及び図１０に基づき前述の図１乃至図３を参照しながら説明する。まず、運転停止時には、正面パネル１０は昇降装置１４によって引上げられ、図９のように化粧パネル７に収納され、天井面とフラットな印象を演出する。このとき、正面パネル１０上に載置された圧縮ばねとなるスプリング芯材付きの蛇腹からなるフィルタ（以下、「蛇腹フィルタ」という）１９は、化粧パネル７の突起部１５によってユニット筐体内奥部への移動を制限され、圧縮ばね１２は縮み状態となり、正面パネル１０、フィルタ１１が化粧パネル７の厚み内に収まる。   Next, the operation of the ceiling-embedded air conditioner of this embodiment will be described based on FIGS. 9 and 10 with reference to FIGS. First, when the operation is stopped, the front panel 10 is pulled up by the elevating device 14 and stored in the decorative panel 7 as shown in FIG. 9 to produce a flat impression with the ceiling surface. At this time, a filter (hereinafter referred to as “bellows filter”) 19 formed of a bellows with a spring core material serving as a compression spring placed on the front panel 10 is connected to the inner part of the unit casing by the protrusion 15 of the decorative panel 7. The compression spring 12 is contracted, and the front panel 10 and the filter 11 are within the thickness of the decorative panel 7.

次に、運転時には、図１０のように正面パネル１０は昇降装置１４がワイヤ１３を繰り出すことによって降下し、化粧パネル７との間に吸込口１６を形成する。この時、蛇腹フィルタ１９は、そのスプリング芯材のばね力によって上方へ伸長し、その上端が突起部１５に押さえ付けられており、吸込口１６からベルマウス４へ至る風路の途中が蛇腹フィルタ１９で覆われている。このため、吸込口１６から吸込まれた空気は全て蛇腹フィルタ１９を通過し、清浄され、ファン２へ導かれる。   Next, as shown in FIG. 10, the front panel 10 descends when the lifting device 14 feeds the wire 13 during operation, and forms a suction port 16 between the front panel 10 and the decorative panel 7. At this time, the bellows filter 19 is extended upward by the spring force of the spring core member, and the upper end thereof is pressed against the protrusion 15, and the middle of the air path from the suction port 16 to the bell mouth 4 is in the middle of the bellows filter. 19 is covered. For this reason, all of the air sucked from the suction port 16 passes through the bellows filter 19, is purified, and is guided to the fan 2.

また、蛇腹フィルタ１９の清掃、メンテナンスなどの際には、昇降装置１４からさらにワイヤ１３を繰り出すことによって正面パネル１０、蛇腹フィルタ１９を手元まで降下させ、フィルタ清掃等の作業を行う。   Further, when the bellows filter 19 is cleaned and maintained, the front panel 10 and the bellows filter 19 are lowered to the hand by further drawing the wire 13 from the elevating device 14, and work such as filter cleaning is performed.

このように、本実施形態によれば、圧縮ばねとなるスプリング芯材を備えた蛇腹フィルタ１９を、正面パネル１０上に上下方向伸縮自在に載置するとともに、化粧パネル７に蛇腹フィルタ１９の上端周縁部と係合してその筐体内奥部への移動を制限する突起部１５を設けているので、運転停止時には化粧パネル７内に正面パネル１０及び蛇腹フィルタ１９をコンパクトに収納することができ、化粧パネル７全体に天井面との一体感を持たせることができる。   As described above, according to the present embodiment, the bellows filter 19 including the spring core material serving as a compression spring is placed on the front panel 10 so as to be vertically expandable and contractible, and the upper end of the bellows filter 19 is placed on the decorative panel 7. Since the protrusion 15 that engages with the peripheral edge and restricts the movement to the inner part of the housing is provided, the front panel 10 and the bellows filter 19 can be stored compactly in the decorative panel 7 when the operation is stopped. The entire decorative panel 7 can have a sense of unity with the ceiling surface.

また、スプリング芯材の弾性力による伸縮可能なストロークを、吸込口１６の高さよりも大きくなるように設定して、運転時にはスプリング芯材による付勢力が常時働くようにしているので、運転時には、蛇腹フィルタ１９を化粧パネル７側に保持しながら化粧パネル７と降下した正面パネル１０との間の隙間を吸込口１６として形成し、蛇腹フィルタ１９を吸込口１６の２次側とすることができて、吸込口１６からベルマウス４へ至る風路の途中を蛇腹フィルタ１９で隙間無く覆うことができる。このため、吸込口１６を正面パネル１０の面に沿う方向に形成することができて面積を大きく確保することができ、吸込み圧損の上昇を抑えながら意匠性を向上させることができるとともに、吸込口１６から吸込まれた空気を全て蛇腹フィルタ１９を通過させることができて、塵埃の除去など、清浄効果を高めることができる。   In addition, the stroke that can be expanded and contracted by the elastic force of the spring core material is set to be larger than the height of the suction port 16, and the urging force by the spring core material always works during operation. While holding the bellows filter 19 on the decorative panel 7 side, a gap between the decorative panel 7 and the lowered front panel 10 can be formed as the suction port 16, and the bellows filter 19 can be the secondary side of the suction port 16. Thus, the middle of the air path from the suction port 16 to the bell mouth 4 can be covered with the bellows filter 19 without a gap. For this reason, the suction port 16 can be formed in a direction along the surface of the front panel 10 and a large area can be secured, and the design can be improved while suppressing an increase in suction pressure loss. All the air sucked from 16 can be passed through the bellows filter 19, and a cleaning effect such as dust removal can be enhanced.

さらに、正面パネル１０を運転時よりさらに降下させることで、蛇腹フィルタ１９も共に降下させることができるので、蛇腹フィルタ１９のメンテナンス作業を手元で容易に行うことができる。このため、蛇腹フィルタ１９フィルタの清掃を行う周期を短くすることが容易となり、フィルタ目詰まりによる空調効率の低下を避けることができる。また、空調空間の清浄化に貢献することができる。   Furthermore, since the bellows filter 19 can be lowered together by lowering the front panel 10 from the time of operation, the maintenance work of the bellows filter 19 can be easily performed at hand. For this reason, it becomes easy to shorten the period which cleans the bellows filter 19 filter, and the fall of the air-conditioning efficiency by filter clogging can be avoided. Moreover, it can contribute to the purification of the air-conditioned space.

なお、蛇腹フィルタ１９としては、図１１に示すような角筒状の蛇腹フィルタ１９Ａや、図１２に示すような円筒状の蛇腹フィルタ１９Ｂなど採用可能であるが、このような形状に限定されるものでなく、要するに吸込口１６からベルマウス４へ至る風路の途中が確実に蛇腹フィルタで覆われて、吸込口１６から吸込んだ空気が全て蛇腹フィルタを通過し、清浄される機能を有しておればよいものである。   In addition, as the bellows filter 19, a rectangular bellows-shaped bellows filter 19A as shown in FIG. 11 or a cylindrical bellows filter 19B as shown in FIG. 12 can be adopted, but it is limited to such a shape. In short, the air path from the suction port 16 to the bell mouth 4 is surely covered with the bellows filter, and all the air sucked from the suction port 16 passes through the bellows filter and is cleaned. It should be.

実施の形態３．
図１３は本発明の実施の形態３に係る天井埋込型空気調和機の運転停止時の状態を示す縦断面図、図１４はそのフィルタ清掃装置を示す斜視図であり、各図中、前述の実施の形態１のものと同一部分には同一符号を付してある。 Embodiment 3 FIG.
FIG. 13 is a longitudinal sectional view showing a state when the ceiling-embedded air conditioner according to Embodiment 3 of the present invention is stopped, and FIG. 14 is a perspective view showing the filter cleaning device. The same parts as those in the first embodiment are denoted by the same reference numerals.

本実施の形態の天井埋込型空気調和機は、フィルタ２０が、ベルマウス４の下方にて位置をユニット筐体１側に固定された一対の回転軸２３ａ，２３ｂ間に掛け回されて所定張力を付与された無端ベルト状（ループ状）に構成されている。そして、モータ２１の駆動力が減速機２２を介して一方の回転軸２３ａに伝達されることで、フィルタ２０は回転駆動されるようになっている。したがって、他方の回転軸２３ｂは、伝動ベルト機能を有するフィルタ２０を介して動力が伝達されて回動するアイドラとして機能する。また、フィルタ２０の使用される部分、つまり回転軸２３ａ，２３ｂ間を結ぶ線で上下に２分割した場合の無端ベルト（フィルタ２０）の下側（室内側）に位置する部分、よりも下流側すなわち無端ベルト（フィルタ２０）の上側（ユニット筐体側）に位置する部分に、フィルタ清掃用のブラシ２４が配置され、アイドラ側の回転軸２３ｂから伝動ベルト２５を介して回転力が付与されるようになっている。また、ブラシ２４はケーシング２６によって囲われ、さらにケーシング２６内に、ブラシ２４と干渉可能にゴミ取り部２７が設置されている。   In the ceiling-embedded air conditioner of the present embodiment, the filter 20 is hung between a pair of rotating shafts 23a and 23b whose position is fixed to the unit housing 1 side below the bell mouth 4 and is predetermined. It is configured in an endless belt shape (loop shape) to which tension is applied. The filter 20 is driven to rotate by transmitting the driving force of the motor 21 to the one rotating shaft 23a via the speed reducer 22. Therefore, the other rotating shaft 23b functions as an idler that rotates when power is transmitted through the filter 20 having a transmission belt function. Further, the downstream side of the portion where the filter 20 is used, that is, the portion located on the lower side (inside of the room) of the endless belt (filter 20) when vertically divided into two by the line connecting the rotary shafts 23a and 23b. In other words, the filter cleaning brush 24 is disposed on the upper end (unit housing side) of the endless belt (filter 20), and rotational force is applied via the transmission belt 25 from the rotary shaft 23b on the idler side. It has become. Further, the brush 24 is surrounded by a casing 26, and a dust removing portion 27 is installed in the casing 26 so as to be able to interfere with the brush 24.

次に、本実施形態の天井埋込型空気調和機の主にフィルタ清掃動作について図１３及び図１４に基づき説明する。運転時、昇降装置１４がワイヤ１３を所定長さ繰出して正面パネル１０を所定量降下させることで形成される吸込口（図示せず）より吸込まれた空気は、フィルタ２０を通過する際、塵埃をフィルタ２０の上流側、つまり室内側に位置する部分へ付着させる。空気調和機が予め設定した期間だけ運転されると、フィルタ清掃モードへ移行し、空気調和機停止中にモータ２１が駆動され、駆動力が減速機２２を介して回転軸２３ａへ伝えられる。これにより、フィルタ２０が回転軸２３ａと略同期して図１４の矢印の方向へ回転し、フィルタ２０の伝動ベルト機能により他方の回転軸２３ｂも回転する。このアイドラ側の回転軸２３ｂの回転力は、伝動ベルト２５によりブラシ２４へ伝えられ、ブラシ２４が回転してフィルタ２０に付着した塵埃を掻き取る。そして掻き取られた塵埃は、ブラシ２４に付着するが、ケーシング２６のゴミ取り部２７によって今度はブラシ２４から塵埃が取り除かれ、取り除かれた塵埃はケーシング２６内へ溜まることとなる。ケーシング２６内に塵埃が溜まると、ケーシング２６を取り外し、ゴミを捨てることで繰り返し使用が可能となる。   Next, mainly the filter cleaning operation of the ceiling-embedded air conditioner according to the present embodiment will be described with reference to FIGS. During operation, air sucked from a suction port (not shown) formed by the lifting device 14 pulling out the wire 13 for a predetermined length and lowering the front panel 10 by a predetermined amount becomes dust when passing through the filter 20. Is attached to the upstream side of the filter 20, that is, the portion located on the indoor side. When the air conditioner is operated only for a preset period, it shifts to the filter cleaning mode, the motor 21 is driven while the air conditioner is stopped, and the driving force is transmitted to the rotary shaft 23 a via the speed reducer 22. As a result, the filter 20 rotates in the direction of the arrow in FIG. 14 substantially in synchronization with the rotation shaft 23 a, and the other rotation shaft 23 b also rotates due to the transmission belt function of the filter 20. The rotational force of the rotating shaft 23b on the idler side is transmitted to the brush 24 by the transmission belt 25, and the brush 24 rotates to scrape dust adhering to the filter 20. The scraped dust adheres to the brush 24, but this time the dust is removed from the brush 24 by the dust removing portion 27 of the casing 26, and the removed dust accumulates in the casing 26. When dust accumulates in the casing 26, the casing 26 is removed, and the dust can be discarded, so that it can be used repeatedly.

フィルタに付着した塵埃を取り除くためには、ブラシ２４をフィルタ２０に押し付けながら、掻き取る必要があるが、図１４のようにブラシ２４をフィルタ２０の回転軸２３ｂ付近に配置することによって回転軸２３ｂをバックアップローラとして機能させることができ、フィルタ２０が撓むことによる押し付け力の逃げを避けることができる。また、ブラシ２４により掻き出され、一部浮いた状態となった塵埃は、フィルタ２０がさらに回転し再び吸気気流の上流側へ移動した際、重力により落下するが、フィルタ２０の下方には正面パネル１０が配置されているため、室内へ舞い落ちるのを防ぐことができる。正面パネル１０に落ちた塵埃は、空気調和機運転時に吸引され、再びフィルタ２０へ付着することとなる。   In order to remove dust adhering to the filter, it is necessary to scrape the brush 24 while pressing it against the filter 20. However, by arranging the brush 24 near the rotation shaft 23b of the filter 20 as shown in FIG. Can function as a backup roller, and escape of the pressing force due to bending of the filter 20 can be avoided. The dust that has been scraped off by the brush 24 and partially lifted is dropped by gravity when the filter 20 further rotates and moves to the upstream side of the intake airflow again. Since the panel 10 is disposed, it can be prevented from falling into the room. The dust that has fallen on the front panel 10 is sucked during the operation of the air conditioner and adheres to the filter 20 again.

このように、本実施形態によれば、フィルタ２０を無端ベルト状（ループ状）に構成してユニット筐体１側で自動的に清掃するように構成したので、フィルタ２０の清掃の手間が省け、フィルタ２０の清掃が小まめに行われるようになる。また、ケーシング２６を溜まる塵埃を清掃の度に取り除かなくてよいだけの十分な容量を持つようにすることで、メンテナンスコストを削減することができる。   As described above, according to the present embodiment, the filter 20 is configured in an endless belt shape (loop shape) and automatically cleaned on the unit housing 1 side, so that the trouble of cleaning the filter 20 can be saved. The filter 20 is cleaned more frequently. Further, the maintenance cost can be reduced by having a sufficient capacity so that the dust accumulated in the casing 26 does not have to be removed every time it is cleaned.

なお、ここでは自動清掃装置を化粧パネル７に設置するかあるいはユニット筐体１と化粧パネル７の間に自動清掃ユニットを設置するようにしたものであるが、自動清掃装置を正面パネル１０に載置するように構成すれば、昇降装置１４により手元まで降ろしてメンテナンスを行うことができ、高所作業の危険を除くことができる。   Here, an automatic cleaning device is installed on the decorative panel 7 or an automatic cleaning unit is installed between the unit housing 1 and the decorative panel 7, but the automatic cleaning device is mounted on the front panel 10. If it is configured to be placed, it can be lowered to the hand by the elevating device 14 to perform maintenance, and the danger of working at high places can be eliminated.

実施の形態４．
図１５は本発明の実施の形態４に係る天井埋込型空気調和機のフィルタ清掃装置を示す斜視図であり、図中、前述の実施の形態３のものと同一部分には同一符号を付してある。 Embodiment 4 FIG.
FIG. 15 is a perspective view showing a filter cleaning device for a ceiling-embedded air conditioner according to Embodiment 4 of the present invention. In the figure, the same parts as those of Embodiment 3 described above are denoted by the same reference numerals. It is.

本実施の形態の天井埋込型空気調和機は、フィルタ２８が円盤形をしており、フィルタ清掃装置が円の中心を軸として回転可能に設置されている。すなわち、フィルタ清掃装置は、フィルタ２８の上流側となる面の中心から半径方向に延びるブラシ２４と、ケーシング２６とから構成されている。つまり、吸引風路は空気がフィルタ２８部を上方から下方へ通過して流れるように形成されている。フィルタ２８は、周縁部に噛合い部２９を備えており、ブラシ２４の回転と同期して回転する図示しないモータ軸に取り付けられたギア（ピニオン）と噛合うように構成されている。   In the ceiling-embedded air conditioner of the present embodiment, the filter 28 has a disk shape, and the filter cleaning device is installed to be rotatable around the center of the circle. In other words, the filter cleaning device includes the brush 24 extending in the radial direction from the center of the surface on the upstream side of the filter 28 and the casing 26. In other words, the suction air passage is formed so that air flows through the filter 28 part from above to below. The filter 28 includes a meshing portion 29 at the peripheral edge portion, and is configured to mesh with a gear (pinion) attached to a motor shaft (not shown) that rotates in synchronization with the rotation of the brush 24.

次に、本実施形態の天井埋込型空気調和機のフィルタ清掃動作について図１５に基づき説明する。運転時、昇降装置１４がワイヤ１３を所定長さ繰出して正面パネル１０を所定量降下させることで形成される吸込口（図示せず）より吸込まれた空気は、フィルタ２８を通過する際、塵埃をフィルタ２８の上流側、つまり図１５のフィルタ２８の上面側に位置する部分へ付着させる。空気調和機が予め設定した期間だけ運転されると、フィルタ清掃モードへ移行し、空気調和機停止中にフィルタ清掃装置のモータが駆動され、フィルタ２８には、周縁部の噛合い部２９と噛み合うピニオンから駆動力が伝達される。これによりフィルタ２８が接線方向の力を受け回転するとともに、ブラシ２４も回転し、フィルタ２８に付着した塵埃を掻き出し、ケーシング内に溜める。   Next, the filter cleaning operation of the ceiling-embedded air conditioner of this embodiment will be described with reference to FIG. During operation, air sucked from a suction port (not shown) formed by the lifting device 14 pulling out the wire 13 for a predetermined length and lowering the front panel 10 by a predetermined amount passes through the filter 28 as dust. Is attached to the upstream side of the filter 28, that is, the portion located on the upper surface side of the filter 28 in FIG. When the air conditioner is operated only for a preset period, it shifts to the filter cleaning mode, the motor of the filter cleaning device is driven while the air conditioner is stopped, and the filter 28 meshes with the meshing portion 29 at the peripheral portion. Driving force is transmitted from the pinion. As a result, the filter 28 rotates in response to a tangential force, and the brush 24 also rotates to scrape dust adhering to the filter 28 and collect it in the casing.

このように、本実施形態によれば、フィルタ２８を円盤形に形成して、その周縁部に噛合い部２９を設け、ブラシ２４の回転と同期して回転するモータ軸側のピニオンと噛合うようにしているので、フィルタ２８の清掃の手間が省け、フィルタ２８の清掃が小まめに行われるようになる。また、ケーシング２６を溜まる塵埃を清掃の度に取り除かなくてよいだけの十分な容量を持つようにすることで、メンテナンスコストを削減することができる。   As described above, according to the present embodiment, the filter 28 is formed in a disk shape, the engagement portion 29 is provided at the peripheral portion thereof, and meshes with the pinion on the motor shaft side that rotates in synchronization with the rotation of the brush 24. Thus, the trouble of cleaning the filter 28 can be saved, and the filter 28 can be cleaned more frequently. Further, the maintenance cost can be reduced by having a sufficient capacity so that the dust accumulated in the casing 26 does not have to be removed every time it is cleaned.

１ ユニット筐体（筐体）、２ ファン（送風機）、３ モータ（送風機）、５ 熱交換器、７ 化粧パネル、８ 吹出口、１０ 正面パネル、１１，２０，２８ フィルタ、１２ 圧縮ばね（付勢手段）、１４ 昇降装置、１５ 突起部、１６ 吸込口、１９，１９Ａ，１９Ｂ 蛇腹フィルタ（蛇腹）、２４ ブラシ（回転ブラシ）、２７ ゴミ取り部（集塵手段）。   1 unit housing (housing), 2 fan (blower), 3 motor (blower), 5 heat exchanger, 7 decorative panel, 8 outlet, 10 front panel, 11, 20, 28 filter, 12 compression spring (with 14) Lifting device, 15 protrusion, 16 suction port, 19, 19A, 19B bellows filter (bellows), 24 brush (rotary brush), 27 dust removal part (dust collecting means).

Claims (6)

下部が開口する筐体と、
前記筐体の内部中央に配置された送風機と、
前記送風機よりも上流側に設けられ、前記送風機により吸引された空気を清浄化するフィルタと、
前記送風機を囲むように配置されて前記筐体内に収容された熱交換器と、
前記筐体の開口の中央部分を閉塞可能に配置され、空気流通のない正面パネルと、
前記熱交換器により熱交換された空気を吹き出す吹出口を有し、前記正面パネルを囲むようにして前記筐体の開口を前記正面パネルとともに覆う化粧パネルと、
前記筐体側又は前記化粧パネル側に取り付けられて、前記正面パネルを昇降自在に支持する昇降装置と、
前記正面パネルに取り付けられ、前記フィルタを上方に付勢する付勢手段と、を備え、
前記正面パネルは、
前記昇降装置によって、運転時、運転停止時、及びメンテナンス時に応じて昇降位置が調整され、
前記運転停止時には、上限位置にあって前記化粧パネルとフラットとなり、
前記運転時には、前記運転停止時よりも下降され、前記化粧パネルとの間に形成された間隙により、前記送風機と連通する吸込口を形成し、
前記メンテナンス時には、前記運転時よりも下降され、
前記付勢手段は、
前記運転時には、上下方向において前記フィルタを前記吸込口よりも上方に押し上げる
ことを特徴とする天井埋込型空気調和機。 A housing with an open bottom;
A blower disposed in the center of the inside of the housing;
A filter that is provided upstream of the blower and that cleans the air sucked by the blower;
A heat exchanger disposed so as to surround the blower and housed in the housing;
A front panel arranged so as to be able to close the central part of the opening of the housing, and without air flow,
A decorative panel that has an air outlet for blowing out the air heat-exchanged by the heat exchanger, and covers the opening of the housing together with the front panel so as to surround the front panel;
A lifting device attached to the housing side or the decorative panel side and supporting the front panel so as to be lifted and lowered,
A biasing means attached to the front panel and biasing the filter upward;
The front panel is
By the elevating device, the elevating position is adjusted according to operation, operation stop, and maintenance,
When the operation is stopped, the decorative panel is flat with the upper limit position,
During the operation, lower than when the operation is stopped, by a gap formed between the decorative panel, forming a suction port communicating with the blower,
During the maintenance, it is lowered than during the operation,
The biasing means is
During the operation, the ceiling-embedded air conditioner is configured to push up the filter above the suction port in the vertical direction. 前記フィルタは、
前記メンテナンス時には、前記正面パネルと前記付勢手段とともに下降する
ことを特徴とする請求項１記載の天井埋込型空気調和機。 The filter is
The ceiling-embedded air conditioner according to claim 1, wherein the air conditioner descends together with the front panel and the biasing means during the maintenance. 前記筐体側に、前記フィルタの上端と係合してその筐体内奥部への移動を制限する突起部を設けた
ことを特徴とする請求項１又は２記載の天井埋込型空気調和機。 3. The ceiling-embedded air conditioner according to claim 1, wherein a protrusion is provided on the housing side so as to engage with an upper end of the filter and restrict movement to an inner portion of the housing. 前記正面パネルは、
空気調和機の運転停止時には前記化粧パネル側に収納されて前記吸込口を閉塞し、運転時には下降して前記化粧パネルとの間で吸込口を形成する
ことを特徴とする請求項１乃至請求項３のいずれかに記載の天井埋込型空気調和機。 The front panel is
The air conditioner is housed on the decorative panel side when the operation of the air conditioner is stopped, closes the suction port, and descends during operation to form a suction port with the decorative panel. The ceiling-embedded air conditioner according to any one of 3 above. 前記昇降装置は、
前記正面パネルを手元まで降下可能な昇降ストロークを有している
ことを特徴とする請求項１乃至請求項４のいずれかに記載の天井埋込型空気調和機。 The lifting device is
The ceiling-embedded air conditioner according to any one of claims 1 to 4, further comprising a lifting stroke capable of lowering the front panel to a hand. 前記フィルタに堆積した塵埃を掻き出す回転ブラシと掻き出した塵埃を溜める集塵手段とを備えたフィルタ清掃装置を設けた
ことを特徴とする請求項１乃至請求項５のいずれかに記載の天井埋込型空気調和機。 6. The ceiling embedding according to claim 1, further comprising: a filter cleaning device provided with a rotating brush that scrapes dust accumulated on the filter and a dust collecting unit that collects the dust dust. Type air conditioner.
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