JP5456402B2 - Embedded ceiling air conditioner - Google Patents

Embedded ceiling air conditioner Download PDF

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Publication number
JP5456402B2
JP5456402B2 JP2009174323A JP2009174323A JP5456402B2 JP 5456402 B2 JP5456402 B2 JP 5456402B2 JP 2009174323 A JP2009174323 A JP 2009174323A JP 2009174323 A JP2009174323 A JP 2009174323A JP 5456402 B2 JP5456402 B2 JP 5456402B2
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Prior art keywords
outlet
flap
air conditioner
ceiling
air
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JP2011027336A (en
Inventor
信博 小倉
誠一 古賀
宏明 薄井
貴一 林
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Priority to JP2009174323A priority Critical patent/JP5456402B2/en
Priority to CN2010102366495A priority patent/CN101968258A/en
Priority to EP10007746.0A priority patent/EP2295878B1/en
Publication of JP2011027336A publication Critical patent/JP2011027336A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F2013/0616—Outlets that have intake openings

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Duct Arrangements (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Description

本発明は、吹出口にフラップを備えた天井埋込型空気調和装置に関する。   The present invention relates to a ceiling-embedded air conditioner having a flap at an outlet.

一般に、熱交換器及び送風機を収容した空気調和機本体と、前記空気調和機本体と組み合わされ、天井面に設置されて、四方向への吹出口を有する化粧パネルとを備えた天井埋込型空気調和装置が知られている。この種のものでは、冷房時にフラップが例えば水平吹き出し位置に変位し、スマッジング（吹出口近傍の天井汚れ）が発生する問題がある。冷房時は、吹き出し空気の相対湿度が約９０％以上の場合が多く、空気調和機内部の汚れがより天井面に付着しやすくなるからである。
ところで、従来の吹出口の形状及びフラップの関係では、吹出口の長手方向両側の短辺付近で風速が増し、スマッジングによる天井面の汚れは、フラップの中央付近ではなく、フラップの両サイド側で多く発生するため、従来では、例えばフラップの両サイドを大きく切り欠いて、吹き出し空気を天井面から離して下側に落とすことによりスマッジングを防止していた（例えば、特許文献１参照。）。
特開２００１−１９４０００号公報 In general, an air conditioner main body containing a heat exchanger and a blower, and a ceiling embedded type provided with a decorative panel that is combined with the air conditioner main body and is installed on a ceiling surface and has an outlet in four directions Air conditioning devices are known. In this type, there is a problem that the flap is displaced to, for example, a horizontal blowing position during cooling, and smudging (ceiling dirt near the blowout port) occurs. This is because, during cooling, the relative humidity of the blown air is often about 90% or more, and dirt inside the air conditioner is more likely to adhere to the ceiling surface.
By the way, in the relationship between the shape of the conventional outlet and the flap, the wind speed increases near the short sides on both sides in the longitudinal direction of the outlet, and the smearing of the ceiling surface is not near the center of the flap but on both sides of the flap. In the past, for example, both sides of the flap were largely cut off, and smudging was prevented by dropping the blown air away from the ceiling surface to the lower side (see, for example, Patent Document 1).
JP 2001-194000 A

しかし、従来の構成では、スマッジングを防止できる反面、冷房運転時も冷気が落ちてきてドラフトを感じる問題があった。
そこで、本発明の目的は、ドラフトを感じさせることなく、スマッジングを防止できる空気調和装置を提供することにある。 However, in the conventional configuration, although smudging can be prevented, there is a problem that the cool air is dropped during cooling operation and a draft is felt.
Therefore, an object of the present invention is to provide an air conditioner that can prevent smudging without feeling a draft.

本発明は、熱交換器及び送風機を収容した空気調和機本体と、前記空気調和機本体と組み合わされ天井面に設置されて四方向への吹出口を有する化粧パネルとを備えた天井埋込型空気調和装置において、前記四方向への吹出口が、それぞれ前記化粧パネルの外縁方向に先広がりの台形状であり、前記吹出口の外側の長辺は、吹出口の奥に向けて湾曲面を持って湾曲し、この湾曲面は、吹出口の奥から所定の位置まで、吹出口両側及び中央共に、共通し、所定の位置から表面の長辺までは、吹出口両側に比べ、吹出口中央が大きく湾曲し、前記吹出口の外側の長辺のラインは、長手方向中央で外側に向けて凸に湾曲して形成され、前記吹出口の前記奥のラインは、長手方向に直線状に形成され、前記吹出口にフラップを備え、前記フラップの前縁は長手方向中央で外側に向けて凸に湾曲し、当該フラップの前縁のラインの曲率は、前記吹出口の外側の長辺の前記ラインの曲率とほぼ等しいか、あるいは若干大きく形成され、前記フラップを水平吹き出し位置に変位させた場合、前記吹出口の長手方向両側に行くに連れて、前記フラップの前縁と、前記吹出口の前記奥との間隙が大きくなることを特徴とする。
前記フラップを下吹き位置に変位させた場合、吹出口の開口面積が最大でもよい。
前記四方向への吹出口のすべてが気流を水平方向に広げ、サークルフローを実現する構成であってもよい。
The present invention includes an air conditioner main body that houses a heat exchanger and a blower, and a ceiling-embedded type that includes a decorative panel that is installed on the ceiling surface and has a blowout opening in four directions in combination with the air conditioner main body. in the air conditioner, the air outlet of the four directions is trapezoidal der each edge direction before spreading of the decorative panel is, the long sides of the outside of the air outlet, curved surface toward the back of the air outlet This curved surface is common from the back of the air outlet to a predetermined position, on both sides and the center of the air outlet, and from the predetermined position to the long side of the surface, compared to the air outlet on both sides. The center is greatly curved, the long side line outside the blower outlet is formed to be curved outward and convex at the center in the longitudinal direction, and the back line of the blower outlet is linear in the longitudinal direction. Formed and provided with a flap at the outlet, in front of the flap Is curved convexly toward the outside at the center in the longitudinal direction, and the curvature of the line at the front edge of the flap is formed to be approximately equal to or slightly larger than the curvature of the line on the long side outside the outlet, when the flap is displaced in the horizontal blowoff position, as the go on both sides in the longitudinal direction of the air outlet, a front edge of said flap, gap between the back of the air outlet is characterized largely Do Rukoto.
If displacing the previous SL flap down blow position, the opening area of the air outlet may be at a maximum.
All of the outlets in the four directions may be configured to spread the airflow in the horizontal direction and realize a circle flow.

本発明では、吹出口の長手方向両側の短辺付近で風速が増すことがなく、吹出口からは均一な風速を得ることができるため、ドラフトを感じさせることなく、スマッジングによる天井面の汚れを抑制できる。   In the present invention, the wind speed does not increase in the vicinity of the short sides on both sides in the longitudinal direction of the air outlet, and a uniform air speed can be obtained from the air outlet, so that dirt on the ceiling surface due to smudging can be obtained without causing a draft. Can be suppressed.

以下、本発明の一実施の形態を、添付図面を参照して説明する。
図１は、本発明の実施の形態に係る天井埋込型空気調和装置の側部断面図、図２は、天井埋込型空気調和装置の化粧パネルを被調和室側から見た平面図である。
この天井埋込型空気調和装置は、図１に示すように、板金製の空気調和機本体１を有しており、吊りボルト２で天井からつり下げられる態様で設置される。
空気調和機本体１は、下面が開口する略四角形の箱形に形成されている。図１中では、空気調和機本体１の下方が被調和室となる。この空気調和機本体１の内側には、発泡スチロール製の断熱体３が、空気調和機本体１の側板１Ａの内面に略接した状態で配置され、側板１Ａでの結露を防止している。 Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a side sectional view of a ceiling-embedded air conditioner according to an embodiment of the present invention, and FIG. 2 is a plan view of a decorative panel of the ceiling-embedded air conditioner as viewed from the conditioned room side. is there.
As shown in FIG. 1, this ceiling-embedded air conditioner has a sheet metal air conditioner main body 1 and is installed in a manner that it can be suspended from a ceiling with suspension bolts 2.
The air conditioner main body 1 is formed in a substantially rectangular box shape with an open bottom surface. In FIG. 1, the lower part of the air conditioner main body 1 is a conditioned room. Inside the air conditioner main body 1, a polystyrene foam heat insulator 3 is disposed in a state of being substantially in contact with the inner surface of the side plate 1A of the air conditioner main body 1 to prevent condensation on the side plate 1A.

空気調和機本体１の天板１Ｂには、モータ５が固定されている。このモータ５のシャフトには羽根車７が取り付けられており、このモータ５と羽根車７とで送風機９を構成している。この送風機９と断熱体３との間には、送風機９の側方を取り囲むように、略四角形状に曲げられた熱交換器１１が取り付けられている。また、熱交換器１１の下側には、熱交換器１１の下面１１Ａを覆うように、発泡スチロール製のドレンパン１３が配置されている。このドレンパン１３は、熱交換器１１で発生するドレン水を受けるためのものである。またドレンパン１３には、送風機９のノズル１７、電装箱（図示せず）等の各種部品がねじ止めされている。   A motor 5 is fixed to the top plate 1B of the air conditioner body 1. An impeller 7 is attached to the shaft of the motor 5, and the motor 5 and the impeller 7 constitute a blower 9. A heat exchanger 11 bent in a substantially rectangular shape is attached between the blower 9 and the heat insulator 3 so as to surround the side of the blower 9. In addition, a styrene foam drain pan 13 is disposed below the heat exchanger 11 so as to cover the lower surface 11 </ b> A of the heat exchanger 11. The drain pan 13 is for receiving drain water generated in the heat exchanger 11. Various parts such as the nozzle 17 of the blower 9 and an electrical box (not shown) are screwed to the drain pan 13.

空気調和機本体１の下面には、図１及び図２に示すように、空気調和機本体１の下側開口を覆うように、略矩形状の化粧パネル２１が取り付けられている。この化粧パネル２１には、空調後の空気を室内へ送る吹出口２３が４つの辺に沿ってそれぞれ形成されている。この四方向への吹出口２３には、図２に示すように、吹出方向を変更するフラップ２７がそれぞれ設けられている。また、この化粧パネル２１には、吹出口２３に囲まれた中央部であって送風機９の下側に、吸込グリル２６が着脱可能に取り付けられている。この吸込グリル２６には、被調和室に面して吸込口２２が形成されている。また、この吸込グリル２６は、フィルタ２５を介して化粧パネル２１に取り付けられている。
これにより、被調和室内の空気は、送風機９によって吸込口２２から吸い込まれ、フィルタ２５を通過した後に熱交換器１１を通過して熱交換され、吹出口２３から空調後の空気が被調和室へと送られるようになる。 As shown in FIGS. 1 and 2, a substantially rectangular decorative panel 21 is attached to the lower surface of the air conditioner body 1 so as to cover the lower opening of the air conditioner body 1. In the decorative panel 21, air outlets 23 for sending air after air conditioning to the room are formed along four sides. As shown in FIG. 2, flaps 27 for changing the blowing direction are provided at the four-way outlets 23, respectively. In addition, a suction grill 26 is detachably attached to the decorative panel 21 at a central portion surrounded by the blower outlet 23 and below the blower 9. A suction port 22 is formed in the suction grill 26 so as to face the chamber to be conditioned. The suction grill 26 is attached to the decorative panel 21 via the filter 25.
As a result, the air in the conditioned room is sucked from the suction port 22 by the blower 9, passes through the filter 25, passes through the heat exchanger 11, and is subjected to heat exchange. Will be sent to.

この実施の形態では、四方向への吹出口２３が、図２に示すように、それぞれ化粧パネル２１の表面２１Ｂの位置において、一対の長辺２３Ａ，２３Ｂと、一対の短辺２３Ｃ，２３Ｄとにより区画され、この表面２１Ｂから見ると、吹出口２３が、化粧パネル２１の外縁２１Ａ方向に先広がりの台形となっている。   In this embodiment, as shown in FIG. 2, the outlets 23 in the four directions have a pair of long sides 23 </ b> A and 23 </ b> B and a pair of short sides 23 </ b> C and 23 </ b> D at the position of the surface 21 </ b> B of the decorative panel 21. When viewed from the surface 21B, the air outlet 23 has a trapezoidal shape that widens in the direction of the outer edge 21A of the decorative panel 21.

図３は図２のＡ−Ａ断面図、図４は図２のＢ−Ｂ断面図、図５は例えば冷房時にフラップ２７を水平吹き出し位置に変位させた状態の図である。
外縁側の長辺２３Ａは、図３及び図４に示すように、吹出口２３の奥に向けて湾曲面２３Ｇを持って湾曲し、吹出口２３の奥２３Ｅで終端している。湾曲面２３Ｇは、吹出口２３の奥からＡ点の位置まで、図３（吹出口両側）の位置及び図４（吹出口中央）の位置共に、共通の湾曲面となり、Ａ点から長辺２３Ａまでは、図３（吹出口両側）に比べ、図４（吹出口中央）が大きく湾曲し、Ａ点から長辺２３Ａまでの湾曲面２３Ｇの曲率としては、吹出口２３の長手方向中央部の曲率（１／Ｒ４、図４参照。）が、長手方向両側の曲率（１／Ｒ５、図３参照。）よりも大きい。ここで、Ａ点は、図３に示すように、吹出口２３の奥行き方向において、全高さＨのほぼ１／２の高さ位置にある。
この実施の形態では、図５に示すように、奥２３ＥのラインＬ２がほぼ直線で、長辺２３ＡのラインＬ３が、長手方向中央で大きく突出した形態で、外側に向けて凸に湾曲している。内縁側の長辺２３Ｂは、図３及び図４に示すように、吹出口２３の奥に向けて緩やかに傾斜し、奥２３Ｆで終端する。長辺２３Ｂ及び奥２３Ｆの位置は、共に、吹出口２３の長手方向で変化せず、したがって、図５に示すように、長辺２３ＢのラインＬ４及び奥２３ＦのラインＬ５は共に直線である。 3 is a cross-sectional view taken along line AA of FIG. 2, FIG. 4 is a cross-sectional view taken along line BB of FIG. 2, and FIG. 5 is a view showing a state where the flap 27 is displaced to a horizontal blowing position, for example, during cooling.
As shown in FIGS. 3 and 4, the long side 23 </ b> A on the outer edge side is curved with a curved surface 23 </ b> G toward the back of the air outlet 23, and terminates at the back 23 </ b> E of the air outlet 23. The curved surface 23G is a common curved surface from the back of the outlet 23 to the position of the point A, both in the position of FIG. 3 (both sides of the outlet) and in the position of FIG. 4 (center of the outlet). 4 is larger than that in FIG. 3 (both sides of the air outlet), and the curvature of the curved surface 23G from the point A to the long side 23A is larger than that of the central portion in the longitudinal direction of the air outlet 23. The curvature (1 / R4, see FIG. 4) is larger than the curvature (1 / R5, see FIG. 3) on both sides in the longitudinal direction. Here, as shown in FIG. 3, the point A is at a height position substantially ½ of the total height H in the depth direction of the air outlet 23.
In this embodiment, as shown in FIG. 5, the line L2 at the back 23E is substantially a straight line, and the line L3 at the long side 23A protrudes greatly at the center in the longitudinal direction, and is curved convexly toward the outside. Yes. As shown in FIGS. 3 and 4, the long side 23 </ b> B on the inner edge side is gently inclined toward the back of the outlet 23 and ends at the back 23 </ b> F. Both the positions of the long side 23B and the back 23F do not change in the longitudinal direction of the air outlet 23. Therefore, as shown in FIG. 5, the line L4 of the long side 23B and the line L5 of the back 23F are both straight lines.

それぞれの吹出口２３には、風向を変更するほぼ矩形状のフラップ２７が配置され、フラップ２７は、表面２７Ａと裏面２７Ｂを有し、裏面２７Ｂの幅方向中央に設けたヒンジ部（軸）２８を介して、一対の短辺２３Ｃ，２３Ｄに軸支され、該軸２８は、図示を省略した駆動用モータに連結される。図５に示すように、フラップ２７の前縁２７ＣのラインＬ１は、外側に向けて凸に湾曲し、フラップ２７の後縁２７ＤのラインＬ６はほぼ直線である。すなわち、フラップ２７の前縁２７Ｃ、及び該前縁２７Ｃに対応する吹出口２３の外縁２３Ａは、それぞれ外に凸に湾曲している。
図３乃至図５に示すように、平面視で、外縁側の長辺２３Ａから奥２３Ｅまでの幅は、図３（吹出口両側）の位置でＷ１、図４（吹出口中央）の位置でＷ２（＝Ｗ２＞Ｗ１）となっており、図５に示すように、フラップ２７の前縁２７Ｃと、吹出口２３の奥２３Ｅとの間隙が、吹出口両側でｔ１、吹出口中央でｔ２（＝０）となっている。
また、フラップ前縁２７ＣのラインＬ１の曲率（１／Ｒ１）は、吹出口外縁２３ＡのラインＬ３の曲率（１／Ｒ２）とほぼ等しいか、あるいは上記ラインＬ３の曲率（１／Ｒ２）よりも若干大きく形成される。 Each air outlet 23 is provided with a substantially rectangular flap 27 that changes the air direction. The flap 27 has a front surface 27A and a back surface 27B, and a hinge portion (shaft) 28 provided at the center in the width direction of the back surface 27B. The shaft 28 is pivotally supported by a pair of short sides 23C and 23D, and the shaft 28 is connected to a drive motor (not shown). As shown in FIG. 5, the line L1 of the front edge 27C of the flap 27 is convexly convex outward, and the line L6 of the rear edge 27D of the flap 27 is substantially straight. That is, the front edge 27C of the flap 27 and the outer edge 23A of the air outlet 23 corresponding to the front edge 27C are each curved outwardly and convexly.
As shown in FIGS. 3 to 5, the width from the long side 23 </ b> A to the back 23 </ b> E on the outer edge side in a plan view is W <b> 1 at the position in FIG. 3 (both sides of the outlet) and at the position in FIG. 4 (center of the outlet). As shown in FIG. 5, the gap between the front edge 27C of the flap 27 and the back 23E of the outlet 23 is t1 on both sides of the outlet and t2 ( = 0).
Further, the curvature (1 / R1) of the line L1 of the flap leading edge 27C is substantially equal to the curvature (1 / R2) of the line L3 of the blower outlet outer edge 23A or more than the curvature (1 / R2) of the line L3. Slightly larger.

この実施の形態では、図５に示すように、フラップ２７を水平吹き出し位置に変位させた場合、吹出口２３の長手方向両側に行くに連れて、フラップ２７の前縁２７Ｃと、吹出口２３の奥２３Ｅとの間隙ｔ１が大きくなる。したがって、吹出口２３の断面を見ると、図３の位置と、図４の位置とで、ほぼ等しい面積の吹き出し開口を確保でき、吹出口２３の中央、両側で共にほぼ同一風量を確保できる。
また、図５に示すように、一対の短辺２３Ｃ，２３Ｄが側方に傾斜し、吹出口２３が化粧パネル２１の外縁２１Ａ方向に先広がりの台形となるため、長手方向両側では短辺２３Ｃ，２３Ｄの流路抵抗を受けず、ほぼスムーズに流れる。
したがって、従来のように、一対の短辺２３Ｃ，２３Ｄ側での風速が、中央部に比して大きくなる現象が見られず、吹出口２３からは、長手方向にほぼ均一の風量、風速が得られるため、とくに従来に見られた、短辺２３Ｃ，２３Ｄ側での風速増に起因した、いわゆるスマッジングの発生が防止できる。 In this embodiment, as shown in FIG. 5, when the flap 27 is displaced to the horizontal blowing position, the leading edge 27C of the flap 27 and the outlet 23 The gap t1 with the back 23E increases. Therefore, when the cross section of the blower outlet 23 is viewed, a blowout opening having substantially the same area can be secured at the position of FIG. 3 and the position of FIG. 4, and almost the same air volume can be secured at the center and both sides of the blower outlet 23.
Further, as shown in FIG. 5, the pair of short sides 23C and 23D is inclined to the side, and the air outlet 23 has a trapezoidal shape that widens in the direction of the outer edge 21A of the decorative panel 21, so that the short side 23C is formed on both sides in the longitudinal direction. , 23D, and flows almost smoothly.
Therefore, unlike the conventional case, there is no phenomenon that the wind speed on the side of the pair of short sides 23C and 23D becomes larger than that in the center portion, and the air outlet 23 has a substantially uniform air volume and wind speed in the longitudinal direction. Therefore, it is possible to prevent so-called smudging due to an increase in wind speed on the short sides 23C and 23D side, which has been particularly seen in the past.

吹出口２３の長辺２３Ａの形状が、一定の曲率（１／Ｒ２）、（１／Ｒ４）、あるいは（１／Ｒ５）を持って形成されるため、図５に矢印で示すように、吹出口２３の長辺２３Ａの形状に沿った気流ができ、コアンダ効果を持って気流が水平方向に広がる。この構成では、４つの吹出口２３のすべてで、同一のコアンダ効果が得られるため、それぞれ気流が水平方向に広がり、これらを総合すると、ほぼ３６０°方向に広がるサークルフロー（サークル気流）の現象が得られる。
この構成では、サークル気流を実現して、全方位に広がるやさしい気流を得ることができ、温度むらがほとんどなく、冷房時の嫌なドラフト感を軽減でき、快適でやさしい気流を部屋全体に均等に届けることができる。 Since the shape of the long side 23A of the air outlet 23 is formed with a certain curvature (1 / R2), (1 / R4), or (1 / R5), as shown by an arrow in FIG. Airflow is formed along the shape of the long side 23A of the outlet 23, and the airflow spreads in the horizontal direction with a Coanda effect. In this configuration, since the same Coanda effect can be obtained at all four outlets 23, the airflow spreads in the horizontal direction, and when these are combined, the phenomenon of circle flow (circle airflow) spreading in the direction of approximately 360 ° is obtained. can get.
With this configuration, a circle airflow can be achieved, a gentle airflow spreading in all directions can be obtained, there is almost no temperature irregularity, an unpleasant draft feeling during cooling can be reduced, and a comfortable and gentle airflow is evenly distributed throughout the room Can be delivered.

また、過去の実験結果では、吹出口２３からの風速が例えば１ｍ／ｓｅｃ以上になると、天井面に汚れが付きやすいことが判明している。
この構成では、吹出口２３の長手方向の中央から両サイド部を含めて、天井面の吹き出し風速が１ｍ／ｓｅｃ以下になるよう形成されている。すなわちフラップ２７の水平吹き時における両サイドの風速を１ｍ／ｓｅｃ以下に規定している。 In addition, it has been found from past experimental results that when the wind speed from the air outlet 23 is, for example, 1 m / sec or more, the ceiling surface is easily contaminated.
In this configuration, the air blowing speed on the ceiling surface including the both side portions from the center in the longitudinal direction of the air outlet 23 is formed to be 1 m / sec or less. That is, the wind speed on both sides when the flap 27 is blown horizontally is regulated to 1 m / sec or less.

この実施の形態では、図６に示すように、例えば暖房時などにフラップ２７を下吹き位置に変位させた場合、吹出口２３の開口面積は、長手方向にほぼ一定となる。しかも、この場合の開口の面積は、最大である。
上記すなわち、上記構成では、フラップ２７と吹出口２３の位置関係は均一ではない。フラップ２７が例えば水平位置、下吹き位置、あるいは、それらの中間位置に変位することで、上述のように吹出口２３の開口面積が変化する。
以上、一実施の形態に基づいて、本発明を説明したが、本発明は、これに限定されるものではなく、他の態様も可能である。 In this embodiment, as shown in FIG. 6, for example, when the flap 27 is displaced to the lower blowing position during heating, the opening area of the outlet 23 is substantially constant in the longitudinal direction. Moreover, the area of the opening in this case is the maximum.
That is, in the above-described configuration, the positional relationship between the flap 27 and the outlet 23 is not uniform. When the flap 27 is displaced, for example, to a horizontal position, a lower blowing position, or an intermediate position thereof, the opening area of the outlet 23 changes as described above.
As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this, Other aspects are also possible.

本発明の実施形態に係る天井埋込型空気調和装置の側部断面図である。1 is a side sectional view of a ceiling-embedded air conditioner according to an embodiment of the present invention. 天井埋込型空気調和装置に取り付けられた化粧パネルの平面図である。It is a top view of the decorative panel attached to the ceiling-embedded air conditioner. 図２のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図２のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. フラップを水平吹き出し位置に変位させた状態の図である。It is a figure of the state which displaced the flap to the horizontal blowing position. フラップを下吹き位置に変位させた状態の図である。It is a figure of the state which displaced the flap to the lower blowing position.

１ 空気調和機本体
１１ 熱交換器
２１ 化粧パネル
２１Ａ 外縁
２３ 吹出口
２３Ａ，２３Ｂ 長辺
２３Ｃ，２３Ｄ 短辺
２３Ｇ 湾曲面
２７ フラップ
２７Ｃ 前縁 DESCRIPTION OF SYMBOLS 1 Air conditioner main body 11 Heat exchanger 21 Cosmetic panel 21A Outer edge 23 Outlet 23A, 23B Long side 23C, 23D Short side 23G Curved surface 27 Flap 27C Front edge

Claims (3)

熱交換器及び送風機を収容した空気調和機本体と、前記空気調和機本体と組み合わされ天井面に設置されて四方向への吹出口を有する化粧パネルとを備えた天井埋込型空気調和装置において、前記四方向への吹出口が、それぞれ前記化粧パネルの外縁方向に先広がりの台形状であり、
前記吹出口の外側の長辺は、吹出口の奥に向けて湾曲面を持って湾曲し、この湾曲面は、吹出口の奥から所定の位置まで、吹出口両側及び中央共に、共通し、所定の位置から表面の長辺までは、吹出口両側に比べ、吹出口中央が大きく湾曲し、前記吹出口の外側の長辺のラインは、長手方向中央で外側に向けて凸に湾曲して形成され、前記吹出口の前記奥のラインは、長手方向に直線状に形成され、
前記吹出口にフラップを備え、前記フラップの前縁は長手方向中央で外側に向けて凸に湾曲し、当該フラップの前縁のラインの曲率は、前記吹出口の外側の長辺の前記ラインの曲率とほぼ等しいか、あるいは若干大きく形成され、
前記フラップを水平吹き出し位置に変位させた場合、前記吹出口の長手方向両側に行くに連れて、前記フラップの前縁と、前記吹出口の前記奥との間隙が大きくなることを特徴とする天井埋込型空気調和装置。 In a ceiling-embedded air conditioner comprising: an air conditioner body that houses a heat exchanger and a blower; and a decorative panel that is installed on the ceiling surface and has a blowout opening in four directions in combination with the air conditioner body the air outlet of the four directions is Ri trapezoidal der outer edge direction ahead extent of each of the decorative panel,
The outer long side of the outlet is curved with a curved surface toward the back of the outlet, and this curved surface is common to both sides and the center of the outlet from the back of the outlet to a predetermined position. From the predetermined position to the long side of the surface, the center of the outlet is greatly curved compared to both sides of the outlet, and the long side line outside the outlet is curved outwardly at the center in the longitudinal direction. Formed, the back line of the outlet is formed linearly in the longitudinal direction,
The air outlet is provided with a flap, the front edge of the flap is curved outwardly at the longitudinal center, and the curvature of the line of the front edge of the flap is the length of the line on the long side outside the air outlet. It is almost equal to the curvature, or slightly larger,
If is displaced in a horizontal blowoff position the flap, as the go on both sides in the longitudinal direction of the air outlet, a front edge of said flap, gap between the back of the air outlet is characterized largely Do Rukoto A ceiling-embedded air conditioner. 前記フラップを下吹き位置に変位させた場合、吹出口の開口面積が最大となることを特徴とする請求項１に記載の天井埋込型空気調和装置。 The ceiling-embedded air conditioner according to claim 1 , wherein when the flap is displaced to the lower blowing position, the opening area of the outlet is maximized. 前記四方向への吹出口のすべてが気流を水平方向に広げ、サークルフローを実現することを特徴とする請求項１または２に記載の天井埋込型空気調和装置。 3. The ceiling-embedded air conditioner according to claim 1, wherein all of the four outlets spread the airflow in the horizontal direction to realize a circle flow. 4.
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