JP6828458B2 - Ceiling embedded air conditioner - Google Patents

Ceiling embedded air conditioner Download PDF

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JP6828458B2
JP6828458B2 JP2017010560A JP2017010560A JP6828458B2 JP 6828458 B2 JP6828458 B2 JP 6828458B2 JP 2017010560 A JP2017010560 A JP 2017010560A JP 2017010560 A JP2017010560 A JP 2017010560A JP 6828458 B2 JP6828458 B2 JP 6828458B2
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air
heat exchanger
suction port
fan
blower
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JP2018119720A (en
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浩章 野口
浩章 野口
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Fujitsu General Ltd
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本発明は、天井埋込型空気調和機に関し、特に室内機の構造に関するものである。 The present invention relates to a ceiling-embedded air conditioner, and particularly to a structure of an indoor unit.

天井埋込型空気調和機は、屋外に設置される室外機と空調室の天井裏に設置される室内機がガス管と液管で接続されて冷媒回路を形成する。室内機は天井裏に埋設される箱型の外胴を有する本体ユニットと、天井の空調室側に配置して同本体ユニットに取り付ける化粧パネルとを有する。 In the ceiling-embedded air conditioner, the outdoor unit installed outdoors and the indoor unit installed behind the ceiling of the air conditioning room are connected by a gas pipe and a liquid pipe to form a refrigerant circuit. The indoor unit has a main body unit having a box-shaped outer body embedded in the ceiling, and a decorative panel arranged on the air-conditioning room side of the ceiling and attached to the main body unit.

従来例に示す天井埋込型空気調和機の本体ユニットにはターボファン型の送風ファンと送風ファンの周囲を囲む熱交換器が設けられ、本体ユニットの下端は熱交換器から発生するドレン水を受ける発泡スチロール製のドレンパンが設けられている。化粧パネルには中央に吸込口が形成されるとともに吸込口の周囲には化粧パネルの四辺それぞれに沿って吹出口が形成されており、送風ファンで吸込口から吸い込まれ送風ファンの四方に吹き出された室内空気は、熱交換器で冷媒と熱交換されて冷気または暖気となって、外胴と熱交換器の間に形成された送風路を通って流れ、吹出口から空調室に吹き出される。(特許文献1参照) The main unit of the ceiling-embedded air conditioner shown in the conventional example is provided with a turbofan type blower fan and a heat exchanger surrounding the blower fan, and the lower end of the main body unit receives drain water generated from the heat exchanger. A drain pan made of foamed styrene to receive is provided. A suction port is formed in the center of the decorative panel, and outlets are formed around the suction port along each of the four sides of the decorative panel. The air blower is sucked in from the suction port and blown out to all four sides of the air fan. The indoor air is exchanged with the refrigerant by the heat exchanger to become cold or warm air, flows through the air passage formed between the outer body and the heat exchanger, and is blown out from the air outlet to the air conditioning room. .. (See Patent Document 1)

特開2016−70612号公報Japanese Unexamined Patent Publication No. 2016-70612

送風路を流れる熱交換された空気は、外胴周囲の空気と温度差があることで、冷房運転時に外胴の温度が外胴周囲の空気の温度より低くなるため外胴の表面に結露が発生する。そのため外胴の送風路側には熱交換された空気と外胴の間を断熱するために板状の発泡スチロール製の断熱材を設けている。そのため断熱材の板厚の分だけ外胴内部が狭くなる。天井に設けた取付開口部の大きさは一定のため、断熱材の板厚の分だけ本体ユニット内部の容積が小さくなる。これに伴い熱交換器が小さくなることで熱交換能力が落ちることになる。 The heat-exchanged air flowing through the air passage has a temperature difference from the air around the outer cylinder, so that the temperature of the outer cylinder becomes lower than the temperature of the air around the outer cylinder during cooling operation, causing dew condensation on the surface of the outer cylinder. appear. Therefore, a plate-shaped styrofoam heat insulating material is provided on the air passage side of the outer cylinder to insulate between the heat-exchanged air and the outer cylinder. Therefore, the inside of the outer body becomes narrower by the thickness of the heat insulating material. Since the size of the mounting opening provided on the ceiling is constant, the volume inside the main body unit is reduced by the thickness of the heat insulating material. Along with this, the heat exchanger becomes smaller and the heat exchange capacity decreases.

本発明は、断熱材による本体ユニット内部の容積の縮小による熱交換器の小型化を解決する天井埋込型空気調和機を提供する。 The present invention provides a ceiling-embedded air conditioner that solves the miniaturization of a heat exchanger by reducing the volume inside the main body unit with a heat insulating material.

上述した課題を解決するために本発明は、長方形の天板と、同天板の四辺から下方に延在する側板による箱型の外胴と、同外胴内に熱交換器を設けた本体ユニットと、室内空気を吸い込む一辺側に第1 吸込口と、前記熱交換器で熱交換された吹出空気を前記一辺と向かい合う他辺側に備え、前記本体ユニットの底面に取り付けられる化粧パネルを備えた天井埋込型空気調和機において、
前記本体ユニットは、内部にファンモータと同ファンモータの回転軸に軸支されたシロッコファンを有するファンユニットが設けられ、前記熱交換器は前記ファンユニットの前後左右の四方を囲み、前記熱交換器の下面には仕切板を備え、前記仕切板と前記化粧パネルの間と、前記熱交換器と前記側板の間に前記吸込口から吸い込まれた室内空気が流入する空気吸込室が形成されることを特徴とする。
In order to solve the above-mentioned problems, the present invention presents a rectangular top plate, a box-shaped outer body with side plates extending downward from the four sides of the top plate, and a main body provided with a heat exchanger inside the outer body. A unit, a first suction port on one side for sucking indoor air, a blown air heat exchanged by the heat exchanger on the other side facing the one side, and a decorative panel attached to the bottom surface of the main body unit. In the ceiling-embedded air conditioner
The main body unit is provided with a fan unit having a fan motor and a sirocco fan pivotally supported by the rotation shaft of the fan motor, and the heat exchanger surrounds the front, rear, left and right sides of the fan unit to exchange heat. A partition plate is provided on the lower surface of the vessel, and an air suction chamber into which indoor air sucked from the suction port flows is formed between the partition plate and the decorative panel and between the heat exchanger and the side plate. It is characterized by.

上記のように構成した本発明の天井埋込空気調和機は、熱交換器と側板の間に空気吸込室を設けたことで、側板に設ける断熱材が不要となり、その分本体ユニット内部の容積を大きくできる。 In the ceiling-embedded air conditioner of the present invention configured as described above, since the air suction chamber is provided between the heat exchanger and the side plate, the heat insulating material provided on the side plate becomes unnecessary, and the volume inside the main body unit is increased accordingly. You can make it bigger.

本発明の実施例1の天井埋込型空気調和機の設置状態を示す説明図である。It is explanatory drawing which shows the installation state of the ceiling-embedded type air conditioner of Example 1 of this invention. 実施例1の天井埋込型空気調和機の斜視図である。It is a perspective view of the ceiling-embedded air conditioner of Example 1. FIG. 実施例1の天井埋込型空気調和機の分解図である。It is an exploded view of the ceiling-embedded type air conditioner of Example 1. FIG. 図2のA−A概略断面図である。FIG. 2 is a schematic cross-sectional view taken along the line AA of FIG. 図4のC−C概略断面図である。FIG. 6 is a schematic cross-sectional view taken along the line CC of FIG. 図2のB−B概略断面図である。FIG. 2 is a schematic cross-sectional view taken along the line BB of FIG. 実施例1の天井埋込型空気調和機の底面視での説明図である。It is explanatory drawing in the bottom view of the ceiling-embedded type air conditioner of Example 1. FIG. 実施例1の天井埋込型空気調和機の空気の流れを示す説明図1である。FIG. 1 is an explanatory diagram showing an air flow of the ceiling-embedded air conditioner of the first embodiment. 実施例1の天井埋込型空気調和機の空気の流れを示す説明図2である。FIG. 2 is an explanatory diagram showing an air flow of the ceiling-embedded air conditioner of the first embodiment. (a)は本発明の実施例2の天井埋込型空気調和機の分解図で、(b)は2台用連結部材の斜視図である。(A) is an exploded view of the ceiling-embedded air conditioner according to the second embodiment of the present invention, and (b) is a perspective view of a connecting member for two units. 本発明の実施例2の天井埋込型空気調和機の斜視図1である。FIG. 1 is a perspective view 1 of a ceiling-embedded air conditioner according to a second embodiment of the present invention. 図11のE−E概略断面図である。FIG. 11 is a schematic cross-sectional view taken along the line EE of FIG. 図11のF−F概略断面図である。FIG. 11 is a schematic cross-sectional view taken along the line FF of FIG. 実施例2の天井埋込型空気調和機の斜視図2である。FIG. 2 is a perspective view 2 of the ceiling-embedded air conditioner of the second embodiment.

以下、本発明を実施するための形態1を、添付図面に基づいた実施例として詳細に説明する。なお本発明はこれに限定されるものではない。 Hereinafter, the first embodiment for carrying out the present invention will be described in detail as an example based on the accompanying drawings. The present invention is not limited to this.

本発明による空気調和機は、屋外に設置される室外機(図示無し)と空調室Rの天井T1に取り付けられる室内機1がガス管と液管(いずれも図示なし)で接続されて冷媒回路を形成する。
図1と図2に示す室内機1は天井裏T2に埋設される箱型の本体ユニット10と、天井T1の空調室R側に配置して同本体ユニット10の底面に取付けられる化粧パネル70とを有する天井埋込型空気調和機であり、特に一方向に吹き出す一方向吹出型の天井埋込型空気調和機である。
In the air conditioner according to the present invention, an outdoor unit (not shown) installed outdoors and an indoor unit 1 attached to the ceiling T1 of the air conditioning chamber R are connected by a gas pipe and a liquid pipe (neither shown) to form a refrigerant circuit. To form.
The indoor unit 1 shown in FIGS. 1 and 2 includes a box-shaped main unit 10 embedded in the ceiling T2 and a decorative panel 70 arranged on the air conditioning chamber R side of the ceiling T1 and attached to the bottom surface of the main unit 10. It is a ceiling-embedded air conditioner, and in particular, a one-way blowout type ceiling-embedded air conditioner that blows out in one direction.

図3を参照して、本体ユニット10は、板金でなる長方形の天板111と、天板111の四辺から下方に延在する側板112,113で形成された箱型の外胴11を有する。天板111の長辺側の側板を側板112、短辺側の側板を側板113として、向かい合う二枚の側板113にはそれぞれ2個の取付金具12が固着されている。 With reference to FIG. 3, the main body unit 10 has a rectangular top plate 111 made of sheet metal, and a box-shaped outer body 11 formed of side plates 112 and 113 extending downward from the four sides of the top plate 111. The side plate on the long side of the top plate 111 is the side plate 112, the side plate on the short side is the side plate 113, and two mounting brackets 12 are fixed to the two side plates 113 facing each other.

取付金具12は上端が外側に向かって折れ曲がって形成された吊下部121と下端が外側に向かって折れ曲がって形成された固定部122を備える。本体ユニット10は、この吊下部121を天井裏T2に固定された図示しない複数の吊りボルトにて吊り下げることで天井裏T2に設置される。 The mounting bracket 12 includes a hanging lower portion 121 formed by bending the upper end outward and a fixing portion 122 formed by bending the lower end outward. The main body unit 10 is installed in the attic T2 by suspending the hanging lower portion 121 with a plurality of hanging bolts (not shown) fixed to the attic T2.

化粧パネル70は、天板111よりも大きい長方形のパネル部71とパネル部71の裏面から本体ユニット10側に立設され箱型の外胴11の開口された底面に大きさを合わせて取り付けられる側壁部72を有する。側壁部72は取付金具12の固定部122に位置を合わせて突出させたネジ止め部721を備える。化粧パネル70はネジ止め部721を取付金具12の固定部122にネジで固定することで本体ユニット10に固定される。 The decorative panel 70 is erected from the back surface of the rectangular panel portion 71 and the panel portion 71, which are larger than the top plate 111, to the main body unit 10 side, and is attached to the open bottom surface of the box-shaped outer body 11 in the same size. It has a side wall portion 72. The side wall portion 72 includes a screwed portion 721 that is aligned and protrudes from the fixing portion 122 of the mounting bracket 12. The decorative panel 70 is fixed to the main body unit 10 by fixing the screw fixing portion 721 to the fixing portion 122 of the mounting bracket 12 with screws.

パネル部71には、向かい合う長辺の一辺側に四角く開口された吸込口(第1吸込口)731を備えるとともに、一辺と向かい合う長辺の他辺側に四角く開口された複数の吹出口74(図2では4箇所)を備え、長辺の一辺に隣り合う二つの短辺の一方の辺側に第2吸込口732を、他方の辺側に第3吸込口733をそれぞれ備える。 The panel portion 71 is provided with a suction port (first suction port) 731 having a square opening on one side of the long side facing each other, and a plurality of outlets 74 (a plurality of outlets 74) having a square opening on the other side of the long side facing one side. In FIG. 2, four locations) are provided, a second suction port 732 is provided on one side of two short sides adjacent to one side of the long side, and a third suction port 733 is provided on the other side.

尚、図2における室内機1において、天板111方向を上面または上方、空調室R方向を底面または下方、吹出口74側を前面または前方、第1吸込口731側を背面側または後方、第2吸込口732側を左側面または左方、第3吸込口733側を右側面または右方として以下説明する。各部品においても同様である。
≪外胴≫
In the indoor unit 1 in FIG. 2, the top plate 111 direction is the upper surface or the upper side, the air conditioning chamber R direction is the bottom surface or the lower side, the air outlet 74 side is the front side or the front side, and the first suction port 731 side is the back side or the rear side. 2 The suction port 732 side will be referred to as the left side surface or the left side, and the third suction port 733 side will be referred to as the right side surface or the right side. The same applies to each part.
≪Outer body≫

次に図3〜図6に示す本体ユニット10に収納されている部品について説明する。外胴11の天板111の内面には板厚の厚い発泡スチロールで形成された断熱材13を備える。外胴11の側板112,113の内面には断熱材13は設けずに薄い断熱シート(図示無し)があればよい。断熱材13の中央は開口され下方から見ると天板111の一部が露出している。この露出した部分の天板111に熱交換器21とファンユニット30が固定される。 Next, the parts housed in the main body unit 10 shown in FIGS. 3 to 6 will be described. A heat insulating material 13 made of thick styrofoam is provided on the inner surface of the top plate 111 of the outer body 11. A thin heat insulating sheet (not shown) may be provided on the inner surfaces of the side plates 112 and 113 of the outer body 11 without providing the heat insulating material 13. The center of the heat insulating material 13 is opened, and a part of the top plate 111 is exposed when viewed from below. The heat exchanger 21 and the fan unit 30 are fixed to the top plate 111 of the exposed portion.

外胴11の左側面の外面には室内機1を制御する電装部品(図示無し)を収納した電装品箱14が取り付けられる。
≪熱交換器≫
An electrical component box 14 containing electrical components (not shown) for controlling the indoor unit 1 is attached to the outer surface of the left side surface of the outer body 11.
≪Heat exchanger≫

熱交換器21は平行に並べられた複数の短冊状のアルミフィン23と、アルミフィン23を貫通する複数の伝熱管22で形成されるフィンチューブ型である。熱交換器21は外胴11の側板112、113に沿って枠状となるように曲げ加工がなされて形成されて設けられたものであり、熱交換器21の角部である前左角部211、後左角部212、後右角部213は、アルミフィン23と伝熱管22を可能な限り小さい半径となるように曲げた角丸形状となっている。また残りの角部である前右角部214には熱交換器21の両側端部が位置する。よって、熱交換器21は、後左角部212と後右角部213を繋ぐ長尺の直線部である熱交換器後部215と、前左角部211と後左角部212を繋ぐ短尺の直線部である熱交換器左部216と、前右角部214と後右角部213を繋ぐ短尺の直線部である熱交換器右部217と、前左角部211と前右角部214を繋ぐ長尺の直線部である熱交換器前部218とにより、陸上トラックのような形状となるトラック型の熱交換器として以下説明する。 The heat exchanger 21 is a fin tube type formed by a plurality of strip-shaped aluminum fins 23 arranged in parallel and a plurality of heat transfer tubes 22 penetrating the aluminum fins 23. The heat exchanger 21 is provided by being bent so as to form a frame along the side plates 112 and 113 of the outer body 11, and is a front left corner portion which is a corner portion of the heat exchanger 21. The 211, the rear left corner portion 212, and the rear right corner portion 213 have a rounded corner shape in which the aluminum fin 23 and the heat transfer tube 22 are bent so as to have the smallest possible radius. Both end portions of the heat exchanger 21 are located at the front right corner portion 214, which is the remaining corner portion. Therefore, the heat exchanger 21 is a short straight line connecting the rear left corner portion 212 and the rear right corner portion 213, which is a long straight portion, the heat exchanger rear portion 215, and the front left corner portion 211 and the rear left corner portion 212. The left part of the heat exchanger 216, the right part of the heat exchanger 217 which is a short straight part connecting the front right corner part 214 and the rear right corner part 213, and the long part connecting the front left corner part 211 and the front right corner part 214. A truck-type heat exchanger having a shape similar to that of a land truck will be described below by means of the heat exchanger front portion 218, which is a straight portion of the above.

なお、熱交換器21と外胴11との間隔において、外胴11と熱交換器後部215の間隔は他の部分よりも広くなっている。これは、主な吸込口である第1吸込口731の開口が熱交換器後部215の外側になるように大きさを合わせたためである。 Regarding the distance between the heat exchanger 21 and the outer body 11, the distance between the outer body 11 and the rear portion 215 of the heat exchanger is wider than the other parts. This is because the size of the opening of the first suction port 731, which is the main suction port, is adjusted so as to be outside the rear portion 215 of the heat exchanger.

熱交換器21の前右角部214には熱交換器21の両側端部が位置する。熱交換器21の両側端部はそれぞれ第1側板24と第2側板25で覆われる。熱交換器21は第1側板24と第2側板25のそれぞれの上端に設けた取付片251と、熱交換器後部215と熱交換器前部218に設けたU字状の取付具27で天板111に吊下固定される。 Both side ends of the heat exchanger 21 are located at the front right corner portion 214 of the heat exchanger 21. Both side ends of the heat exchanger 21 are covered with the first side plate 24 and the second side plate 25, respectively. The heat exchanger 21 is a top with a mounting piece 251 provided at the upper end of each of the first side plate 24 and the second side plate 25, and a U-shaped mounting tool 27 provided at the rear part 215 of the heat exchanger and the front part 218 of the heat exchanger. Suspended and fixed to the plate 111.

第1側板24には伝熱管22が貫通され、貫通した伝熱管22は第1側板24の端で互いにU字管221で連結される。第2側板25には伝熱管22が貫通され、室外機と連結されるガス側連結官222と液側連結管223に接続される。第1側板24と第2側板25の内側端辺は連結板26に固定される。連結板26により熱交換器21の内側空間と外側空間が仕切られる。これにより本体ユニット10内を連結板26と後述するドレンパン40と仕切板50で区切られた熱交換器21の内側の空間は送風機室Fとなる。熱交換器21の外側の外周と外胴11の側板112、113の内周の間の空間(図5の格子線部)は吸込口から吸い込まれた空気を前記熱交換器に導くための空気吸込室Sとなる。空気吸込室Sが熱交換器21の外周を囲むように形成される。第1吸込口731、第2吸込口732と第3吸込口733から吸い込まれた空気Kを空気吸込室Sが熱交換器21に導く。また熱交換器21の下端219はドレンパン40と仕切板50で塞がれ、空気吸込室Sの一部で、化粧パネル70とドレンパン40と仕切板50の間の空間(図6の格子線部)は、後述する導風路Lとなる。
≪送風ファン≫
A heat transfer tube 22 is penetrated through the first side plate 24, and the penetrating heat transfer tubes 22 are connected to each other by a U-shaped tube 221 at the end of the first side plate 24. A heat transfer tube 22 is penetrated through the second side plate 25, and is connected to a gas side connecting officer 222 and a liquid side connecting pipe 223 connected to the outdoor unit. The inner end sides of the first side plate 24 and the second side plate 25 are fixed to the connecting plate 26. The connecting plate 26 separates the inner space and the outer space of the heat exchanger 21. As a result, the space inside the heat exchanger 21 in which the inside of the main body unit 10 is separated by the connecting plate 26, the drain pan 40 described later, and the partition plate 50 becomes the blower chamber F. The space between the outer outer circumference of the heat exchanger 21 and the inner circumferences of the side plates 112 and 113 of the outer body 11 (lattice line portion in FIG. 5) is air for guiding the air sucked from the suction port to the heat exchanger. It becomes the suction chamber S. The air suction chamber S is formed so as to surround the outer periphery of the heat exchanger 21. The air suction chamber S guides the air K sucked from the first suction port 731, the second suction port 732, and the third suction port 733 to the heat exchanger 21. Further, the lower end 219 of the heat exchanger 21 is closed by the drain pan 40 and the partition plate 50, and is a part of the air suction chamber S, and is a space between the decorative panel 70, the drain pan 40 and the partition plate 50 (lattice line portion in FIG. 6). ) Is the air guide L, which will be described later.
≪Blower fan≫

ファンユニット30は、熱交換器21の内側に設けた送風機室Fに配置される。ファンユニット30は、シロッコファンタイプの送風ファン31と、ファンモータ36と、送風ファン31を支え天板111に固定するファン取付台37と、ファンモータ36を天板111に固定するモータ取付台(図示無し)を備える。送風ファン31は図8を参照して複数の羽根を備えた筒状の羽根車32と、羽根車32を収容する渦巻状のファンケーシング34と、羽根車32の中心に連結される回転軸35を有する。送風ファン31は一台もしくは複数台(図3では4台)が横並びで同軸上に配置される。なお、それぞれの送風ファン31は同じ構造を有するものである。 The fan unit 30 is arranged in the blower chamber F provided inside the heat exchanger 21. The fan unit 30 includes a sirocco fan type blower fan 31, a fan motor 36, a fan mount 37 that supports the blower fan 31 and fixes it to the top plate 111, and a motor mount base that fixes the fan motor 36 to the top plate 111 ( (Not shown). The blower fan 31 has a tubular impeller 32 having a plurality of blades, a spiral fan casing 34 accommodating the impeller 32, and a rotating shaft 35 connected to the center of the impeller 32, with reference to FIG. Has. One or a plurality of blower fans 31 (4 in FIG. 3) are arranged side by side and coaxially. In addition, each blower fan 31 has the same structure.

ファンユニット30は、ファンモータ36をモータ取付台で天板111に固定した後、ファンモータ36の両端にそれぞれ2個づつ送風ファン31を回転軸35で互いに連結する。回転軸35の両端はファン取付台37に連結されファン取付台37が天板111に固定される。また、ファンケーシング34の上部にも固定部341があり、これを天板111にネジで固定する。 In the fan unit 30, after fixing the fan motor 36 to the top plate 111 with a motor mount, two blower fans 31 are connected to each other by a rotating shaft 35 at both ends of the fan motor 36. Both ends of the rotating shaft 35 are connected to the fan mounting base 37, and the fan mounting base 37 is fixed to the top plate 111. Further, there is also a fixing portion 341 on the upper portion of the fan casing 34, which is fixed to the top plate 111 with screws.

ファンケーシング34は、羽根車32を収容する収容部342と収容部342から連続して熱交換器21の下端219よりも下方に長く延出して形成される筒状の送風部343を有する。収容部342の側面には羽根車32に空気を取り込むファン吸込口344が円形に開口されている。ファンケーシング34は内部に羽根車32を収容できるように、羽根車32の軸線に平行な面で上下に分割して形成してもよいし、羽根車32の軸線に垂直な面で左右に分割して形成してもよい。なお、ファンケーシング34の内部は収容部342と送風部343が連続して吹出空気Hの送風路33となる。 The fan casing 34 has an accommodating portion 342 for accommodating the impeller 32 and a tubular blower portion 343 formed so as to extend downward from the accommodating portion 342 and continuously below the lower end 219 of the heat exchanger 21. A fan suction port 344 for taking air into the impeller 32 is circularly opened on the side surface of the accommodating portion 342. The fan casing 34 may be vertically divided on a surface parallel to the axis of the impeller 32 so that the impeller 32 can be accommodated therein, or may be divided into left and right on a surface perpendicular to the axis of the impeller 32. May be formed. Inside the fan casing 34, the accommodating portion 342 and the blowing portion 343 continuously serve as a blowing passage 33 for the blown air H.

ファンケーシング34の送風部343は送風室Fの中央からファンケーシング下端345が熱交換器前部218の下方に位置するまで前方に向かって延出される。そしてファンケーシング下端345は化粧パネル70の吹出口74と連結される。送風ファン31の羽根車32が回転すると、ファン吸込口344から吸い込んだ吹出空気Hを羽根車32の周囲に吹き出し、吹き出された空気はファンケーシング34内の送風路33に沿って一方向に向かって吹き出され、空調室Rへ吹き出される。ファンケーシング34の送風部343を室内機1の中央から前方まで長く延出したことにより、吹出空気Hは空調室Rに広く吹き出されるとともに、第1吸込口731とは逆の方向に吹き出されることで、ショートサーキットが防止される。 The blower portion 343 of the fan casing 34 extends forward from the center of the blower chamber F until the lower end 345 of the fan casing is located below the front portion 218 of the heat exchanger. The lower end 345 of the fan casing is connected to the outlet 74 of the decorative panel 70. When the impeller 32 of the blower fan 31 rotates, the blown air H sucked from the fan suction port 344 is blown out around the impeller 32, and the blown air goes in one direction along the blower path 33 in the fan casing 34. Is blown out and blown out to the air conditioning room R. By extending the blower portion 343 of the fan casing 34 from the center of the indoor unit 1 to the front for a long time, the blown air H is widely blown out to the air conditioning chamber R and blown out in the direction opposite to that of the first suction port 731. By doing so, a short circuit is prevented.

吹出口74には吹出風向板38を備える。4つある吹出口74のそれぞれの吹出風向板38の向きを変えることで、吹出空気Hを異なる方向に吹き出すことができ、さらに空調室Rに広く吹き出すことが可能となる。
≪ドレンパン≫
The outlet 74 is provided with an outlet wind direction plate 38. By changing the direction of the blowout air direction plate 38 of each of the four outlets 74, the blown air H can be blown out in different directions, and further widely blown out to the air conditioning chamber R.
≪Drain pan≫

熱交換器21の下端219には熱交換器21で生成されるドレン水を受けるドレンパン40が設けられる。ドレンパン40は、発泡スチロールの断熱部材41と熱交換器21と対向する面に設けられる樹脂製のドレンシート42が一体で成形される。 A drain pan 40 for receiving the drain water generated by the heat exchanger 21 is provided at the lower end 219 of the heat exchanger 21. In the drain pan 40, a styrofoam heat insulating member 41 and a resin drain sheet 42 provided on a surface facing the heat exchanger 21 are integrally formed.

ドレンパン40は熱交換器21の下端219を覆う。ドレンパン40は熱交換器21に合わせて中央に開口部43を有する枠状に形成される。ドレンパン40は熱交換器21で生成されるドレン水を受けるだけのドレンパンとして最低限必要とされる機能を備えることでドレンパン40が小型となり、本体ユニット10内でドレンパン40の占める領域が小さくなりドレンパン40による通風抵抗も少なくなり、ドレンパン40の周囲の通風領域が拡大して通風効率のよいものとなる。ドレンパン40のドレンシート42側には熱交換器21で生成されるドレン水を受け止めるために樋部45が設けられる。 The drain pan 40 covers the lower end 219 of the heat exchanger 21. The drain pan 40 is formed in a frame shape having an opening 43 in the center in accordance with the heat exchanger 21. The drain pan 40 has the minimum required functions as a drain pan that only receives the drain water generated by the heat exchanger 21, so that the drain pan 40 becomes smaller and the area occupied by the drain pan 40 in the main body unit 10 becomes smaller. The ventilation resistance due to the 40 is also reduced, and the ventilation area around the drain pan 40 is expanded to improve the ventilation efficiency. A gutter portion 45 is provided on the drain sheet 42 side of the drain pan 40 to receive the drain water generated by the heat exchanger 21.

ドレンパン40には、外胴11の角部と連結するコーナー部が3か所設けられており、第1コーナー部481は熱交換器21の後右角部213に位置し、樋部45からドレン水が集まるようになっており、このドレン水を排出するドレンポンプ15が配置される。ドレンポンプ15にはドレンパイプ16が連結されていて、ドレン水はドレンポンプ15からドレンパイプ16に導かれドレンパイプ16に繋がったドレンホース(図示無し)により屋外へ排出される。第2コーナー部482は熱交換器21の前右角部214の両側端部が位置し、伝熱管22とU字管221で生成されるドレン水を受け止める。第3コーナー部483は熱交換器21の後左角部212に位置し、図示しないフロートスイッチが配置されている。 The drain pan 40 is provided with three corners connecting to the corners of the outer body 11, and the first corner 481 is located at the rear right corner 213 of the heat exchanger 21 and drains water from the gutter 45. Is gathered, and a drain pump 15 for discharging the drain water is arranged. A drain pipe 16 is connected to the drain pump 15, and drain water is discharged to the outside by a drain hose (not shown) that is guided from the drain pump 15 to the drain pipe 16 and connected to the drain pipe 16. The second corner portion 482 is located at both end portions of the front right corner portion 214 of the heat exchanger 21 and receives the drain water generated by the heat transfer tube 22 and the U-shaped tube 221. The third corner portion 483 is located at the rear left corner portion 212 of the heat exchanger 21, and a float switch (not shown) is arranged.

ドレンパン40のコーナー部481、482、483には、ドレンシート42が断熱部材41の下方まで延出し先端が外側に向かって折れ曲がることで形成された取付部421を有する。この取付部421が取付金具12の固定部122に固定されることでドレンパン40が本体ユニット10に固定される。 The corners 481, 482, and 483 of the drain pan 40 have an attachment portion 421 formed by extending the drain sheet 42 to the lower side of the heat insulating member 41 and bending the tip outward. The drain pan 40 is fixed to the main body unit 10 by fixing the mounting portion 421 to the fixing portion 122 of the mounting bracket 12.

一方で、図9を参照してドレンパン40の左側前方部分は、熱交換器前部218へ空気Kの一部の空気K2を多く引き込むために、熱交換器21の前左角部211に合わせて角丸形状に形成される。そして後述する第2切欠部442と第4切欠部444を仕切る仕切部46が設けられている。仕切部46は角丸形状の左端から外胴11に向かって前方に延出した板状であり、仕切部46の端部を外胴11側からネジで固定する。これにより第2吸込口732から吸い込まれた空気Kが仕切部46を超えて第4切欠部444に至ることで空気K2の通風を妨げずにドレンパン40を固定することができる。 On the other hand, referring to FIG. 9, the left front portion of the drain pan 40 is aligned with the front left corner portion 211 of the heat exchanger 21 in order to draw a large amount of air K2, which is a part of the air K, into the heat exchanger front portion 218. It is formed in a rounded corner shape. A partition 46 for partitioning the second notch 442 and the fourth notch 444, which will be described later, is provided. The partition portion 46 has a plate shape extending forward from the left end having a rounded corner toward the outer cylinder 11, and the end portion of the partition portion 46 is fixed from the outer cylinder 11 side with screws. As a result, the air K sucked from the second suction port 732 exceeds the partition portion 46 and reaches the fourth notch portion 444, so that the drain pan 40 can be fixed without obstructing the ventilation of the air K2.

ドレンパン40の四辺には、それぞれ化粧パネル70の第1吸込口731と第2吸込口732と第3吸込口733から空気Kを取り込むために形成された第1切欠部441と第2切欠部442と第3切欠部443と、取り込んだ空気Kを熱交換器前部218に送るために開口された第4切欠部444が設けられている。吸込口と吹出口に対向する開口部を切り欠いて形成することで、側板112、113との間に断熱部材41を備えないことになる。これにより広い開口部が設けられ通風領域が拡大する。
≪仕切板≫
On the four sides of the drain pan 40, a first notch 441 and a second notch 442 formed to take in air K from the first suction port 731, the second suction port 732, and the third suction port 733 of the decorative panel 70, respectively. And a third notch 443, and a fourth notch 444 opened to send the taken-in air K to the front part 218 of the heat exchanger are provided. By forming the opening facing the suction port and the air outlet by cutting out, the heat insulating member 41 is not provided between the side plates 112 and 113. As a result, a wide opening is provided and the ventilation area is expanded.
≪Partition plate≫

ドレンパン40の中央開口部43には、ファンケーシング34の送風部343が挿通している。そこでドレンパン40の中央開口部43を塞ぎ、挿通されたファンケーシング34の周囲を囲むことでファンケーシング34を安定的に固定するために仕切板50が設けられている。仕切板50はドレンパン40の中央開口部43よりも大きいサイズであればよい。仕切板50は仕切板50に設けたネジ孔52をドレンパン40のボス47にネジで固定する。仕切板50はファンケーシング34の送風部343のための送風部用孔51を送風ファン31毎に設けている。仕切板50はそれぞれの送風部用孔51の中央を結ぶ線上で分割して前後からファンケーシング34を挟み込む構造でもよいし、単純に板材に設けた送風部用孔51にファンケーシング34を通す構造でもよい。送風部用孔51とファンケーシング34の送風部343の合わせ目できる隙間はいずれもシール材(図示無し)で塞ぐ。これにより送風機室Fと導風路Lは区切られ、相互に空気が流通することを防止する。
≪化粧パネル≫
A blower portion 343 of the fan casing 34 is inserted through the central opening 43 of the drain pan 40. Therefore, a partition plate 50 is provided to stably fix the fan casing 34 by closing the central opening 43 of the drain pan 40 and surrounding the periphery of the inserted fan casing 34. The partition plate 50 may have a size larger than the central opening 43 of the drain pan 40. The partition plate 50 fixes the screw holes 52 provided in the partition plate 50 to the boss 47 of the drain pan 40 with screws. The partition plate 50 is provided with a hole 51 for a blower portion for the blower portion 343 of the fan casing 34 for each blower fan 31. The partition plate 50 may be divided on a line connecting the centers of the blower holes 51 to sandwich the fan casing 34 from the front and rear, or simply pass the fan casing 34 through the blower holes 51 provided in the plate material. It may be. A sealing material (not shown) closes the gaps between the blower hole 51 and the blower 343 of the fan casing 34. As a result, the blower chamber F and the air guide path L are separated to prevent air from flowing to each other.
≪Cosmetic panel≫

図7を参照して化粧パネル70のパネル部71には、ファンケーシング34に合わせ4つの吹出口74を備える。吹出口74は熱交換器21の熱交換器前部218の下方に位置する。また前述したように第1吸込口731と第2吸込口732と第3吸込口733を備える。第1吸込口731は外胴11と熱交換器後部215の間に設けられる。第1吸込口731の左右幅は略熱交換器後部215の幅と同等である。第1吸込口731には、吸込風向板734が設けられている。この吸込風向板734は運転停止時には第1吸込口731を塞ぎ、運転が開始されるとモータ(図示無し)で回動して第1吸込口731を開口する。そして吸い込まれる空気Kを吸込風向板734の裏面に沿わせて吸い込むことで整流させる。また、吸い込む空気Kと吹き出された空気Hとを仕切ることでショートサーキットを防ぐ役割もある。 With reference to FIG. 7, the panel portion 71 of the decorative panel 70 is provided with four outlets 74 in accordance with the fan casing 34. The outlet 74 is located below the heat exchanger front portion 218 of the heat exchanger 21. Further, as described above, the first suction port 731, the second suction port 732, and the third suction port 733 are provided. The first suction port 731 is provided between the outer body 11 and the rear portion 215 of the heat exchanger. The left-right width of the first suction port 731 is substantially the same as the width of the rear portion 215 of the heat exchanger. A suction air direction plate 734 is provided at the first suction port 731. The suction air direction plate 734 closes the first suction port 731 when the operation is stopped, and when the operation is started, the suction air direction plate 734 is rotated by a motor (not shown) to open the first suction port 731. Then, the sucked air K is rectified by being sucked along the back surface of the suction wind direction plate 734. It also has a role of preventing a short circuit by partitioning the sucked air K and the blown air H.

第2吸込口732は外胴11と熱交換器左部216の間に設けられる。第2吸込口732の前後幅は熱交換器左部216の後端から外胴11の前面までの幅となる。第3吸込口733は外胴11と熱交換器右部217の間に設けられる。第2吸込口732と第3吸込口733には吸込風向板は無いが、手指の挿入を抑止する桟735が設けられている。なお第1吸込口731と第2吸込口732と第3吸込口733をコ字状に繋いで一つの吸込口としてもよい。
≪組立≫
The second suction port 732 is provided between the outer body 11 and the left portion 216 of the heat exchanger. The front-rear width of the second suction port 732 is the width from the rear end of the left portion 216 of the heat exchanger to the front surface of the outer body 11. The third suction port 733 is provided between the outer body 11 and the right portion 217 of the heat exchanger. The second suction port 732 and the third suction port 733 do not have a suction air direction plate, but are provided with a crosspiece 735 for suppressing the insertion of fingers. The first suction port 731, the second suction port 732, and the third suction port 733 may be connected in a U shape to form one suction port.
≪Assembly≫

次に室内機1の組立について説明する。本体ユニット10は、まず外胴11の天板111側を組立台の上に置き、外胴11の内側に断熱材13を嵌め込む。そして組立済みの熱交換器21のガス連結管222と液連結管223を側板113から引き出して熱交換器21を取付具27と取付片251で天板111に固定する。次は組立済みのファンユニット30を熱交換器21の中央に合わせ、モータ取付台(図示無し)とファン取付台37を天板111に固定する。 Next, the assembly of the indoor unit 1 will be described. In the main body unit 10, first, the top plate 111 side of the outer body 11 is placed on the assembly table, and the heat insulating material 13 is fitted inside the outer body 11. Then, the gas connecting pipe 222 and the liquid connecting pipe 223 of the assembled heat exchanger 21 are pulled out from the side plate 113, and the heat exchanger 21 is fixed to the top plate 111 by the attachment 27 and the attachment piece 251. Next, the assembled fan unit 30 is aligned with the center of the heat exchanger 21, and the motor mounting base (not shown) and the fan mounting base 37 are fixed to the top plate 111.

次はドレンポンプ15を側板113に固定してドレンパイプ16を連結する。ドレンパン40のドレンシート42側の樋部45を熱交換器21の下端219に合わせ外胴10の底面を覆う様に嵌め込みドレンパン40の取付部421を取付金具の固定部122にネジ止めする。この時ドレンパン40の中央開口部43にはファンケーシング34の送風部343が挿通している。次は仕切板50でファンケーシング34の送風部343の周囲を覆い、仕切板50のネジ孔52をドレンパン40のボス47にネジで固定する。 Next, the drain pump 15 is fixed to the side plate 113 and the drain pipe 16 is connected. The gutter portion 45 on the drain sheet 42 side of the drain pan 40 is aligned with the lower end 219 of the heat exchanger 21 and fitted so as to cover the bottom surface of the outer body 10, and the mounting portion 421 of the drain pan 40 is screwed to the fixing portion 122 of the mounting bracket. At this time, the blower portion 343 of the fan casing 34 is inserted through the central opening 43 of the drain pan 40. Next, the partition plate 50 covers the periphery of the blower portion 343 of the fan casing 34, and the screw holes 52 of the partition plate 50 are fixed to the boss 47 of the drain pan 40 with screws.

上記のように組み立てられた本体ユニット10と化粧パネル70は個別に梱包されており、本体ユニット10は先に天井裏T2に埋め込まれた複数の吊りボルトにて吊り下げることで天井裏T2に設置される。そして化粧パネル70を空調室R側から取り付ける。この時化粧パネル70の吹出口74をファンケーシング34の送風部343の口に位置を合わせる。そして化粧パネル70のネジ止め部721を本体ユニット10の取付金具12の固定部122に固定し、冷媒配管と電源線および信号線を室外機に接続することで室内機1が空調室Rに取り付けられる。 The main body unit 10 and the decorative panel 70 assembled as described above are individually packed, and the main body unit 10 is installed in the attic T2 by suspending it with a plurality of hanging bolts embedded in the attic T2 first. Will be done. Then, the decorative panel 70 is attached from the air conditioning chamber R side. At this time, the outlet 74 of the decorative panel 70 is aligned with the mouth of the blower portion 343 of the fan casing 34. Then, the screwed portion 721 of the decorative panel 70 is fixed to the fixing portion 122 of the mounting bracket 12 of the main body unit 10, and the indoor unit 1 is attached to the air conditioning chamber R by connecting the refrigerant pipe, the power supply line, and the signal line to the outdoor unit. Be done.

以上のように組み立てられた室内機1は、図4と図6と図8に示すように、仕切板50を設けたドレンパン40と化粧パネル70のパネル部71との間に空間ができる。この空間は空気吸込室Sの一部となる導風路Lとなる。また、空気吸込室Sには第1吸込口731から吸い込んだ空気Kを熱交換器後部215に導く後部吸込室S1と、第2吸込口732から吸い込んだ空気Kを熱交換器左部216に導く左部吸込室S2と、第3吸込口733から吸い込んだ空気Kを熱交換器右部217に導く右部吸込室S3と、第1吸込口731と第2吸込口732と第3吸込口733から吸い込んだ空気Kの一部が導風路Lを通って熱交換器前部218に導かれる前部吸込室S4からなる。
≪作用≫
As shown in FIGS. 4, 6 and 8, the indoor unit 1 assembled as described above has a space between the drain pan 40 provided with the partition plate 50 and the panel portion 71 of the decorative panel 70. This space becomes a wind guide L that is a part of the air suction chamber S. Further, in the air suction chamber S, the rear suction chamber S1 that guides the air K sucked from the first suction port 731 to the rear part 215 of the heat exchanger and the air K sucked from the second suction port 732 are sent to the left part 216 of the heat exchanger. The left suction chamber S2 to guide, the right suction chamber S3 to guide the air K sucked from the third suction port 733 to the right part 217 of the heat exchanger, the first suction port 731, the second suction port 732, and the third suction port. A part of the air K sucked from the 733 is composed of a front suction chamber S4 which is guided to the front part 218 of the heat exchanger through the air guide L.
≪Action≫

次に、上記のように構成された一方向吹出型の天井埋込型空気調和機の作用について説明する。
≪運転≫
Next, the operation of the one-way blowout type ceiling-embedded air conditioner configured as described above will be described.
≪Driving≫

室内機1の停止時は吸込風向板734が閉じられている。そしてユーザーUによるリモートコントローラー(図示なし)の指令や、空調システムの指令によって室外機の圧縮機およびファンモータ(いずれも図示なし)と室内機1のファンモータ36が運転を開始する。室内機1は吸込風向板734が開かれ、ファンモータ36の運転により送風ファン31が回転する。送風ファン31の回転により送風ファン31の送風部34内の空気が吹き出されることで送風室F内は負圧となり、化粧パネル70に設けた第1吸込口731と第2吸込口732と第3吸込口733から空調室R内の空気Kが吸い込まれる。送風ファン31はシロッコファンタイプであり、ファンユニット30を囲むトラック型の熱交換器21の全方位から空気Kを吸い込む。 When the indoor unit 1 is stopped, the suction air direction plate 734 is closed. Then, the compressor and fan motor of the outdoor unit (none of which are shown) and the fan motor 36 of the indoor unit 1 start operation according to a command of the remote controller (not shown) by the user U or a command of the air conditioning system. In the indoor unit 1, the suction air direction plate 734 is opened, and the blower fan 31 is rotated by the operation of the fan motor 36. The rotation of the blower fan 31 blows out the air in the blower portion 34 of the blower fan 31, so that the inside of the blower chamber F becomes a negative pressure, and the first suction port 731, the second suction port 732, and the second suction port provided in the decorative panel 70 3 The air K in the air conditioning chamber R is sucked from the suction port 733. The blower fan 31 is a sirocco fan type, and sucks air K from all directions of the truck-type heat exchanger 21 surrounding the fan unit 30.

図6と図8と図9を参照して、送風ファン31により吸い込まれた空気Kは空気吸込室Sに流入する。熱交換器21の周囲に空気吸込室Sがあることで熱交換器21に風速と風量の偏りが少ない状態で空気Kが取りこまれ、効率の良い熱交換を行うことができる。 With reference to FIGS. 6, 8 and 9, the air K sucked by the blower fan 31 flows into the air suction chamber S. Since the air suction chamber S is provided around the heat exchanger 21, the air K is taken into the heat exchanger 21 in a state where the air velocity and the air volume are less biased, and efficient heat exchange can be performed.

空気吸込室Sの内で第1吸込口731から吸い込まれた空気K1はドレンパン40の第1切欠部441を通り後部吸込室S1から熱交換器後部215に導かれる。また第2吸込口732から吸い込まれた空気K1はドレンパン40の第2切欠部442を通り左部吸込室S2から熱交換器左部216に導かれる。さらに第3吸込口733から吸い込まれた空気K1はドレンパン40の第3切欠部443を通り右部吸込室S3から熱交換器右部217に導かれる。 The air K1 sucked from the first suction port 731 in the air suction chamber S passes through the first notch 441 of the drain pan 40 and is guided from the rear suction chamber S1 to the rear part 215 of the heat exchanger. Further, the air K1 sucked from the second suction port 732 passes through the second notch 442 of the drain pan 40 and is guided from the left suction chamber S2 to the heat exchanger left 216. Further, the air K1 sucked from the third suction port 733 passes through the third notch 443 of the drain pan 40 and is guided from the right suction chamber S3 to the heat exchanger right 217.

送風ファン31は熱交換器前部218の方向からも空気を吸い込もうとすることで、第1吸込口731と第2吸込口732と第3吸込口733から吸い込まれた空気Kの一部の空気K2は導風路Lに流れ、ファンケーシング34の送風部343の間を抜けドレンパン40の第4切欠部444を通り前部吸込室S4から熱交換器前部218に導かれる。 The blower fan 31 also tries to suck air from the direction of the front part 218 of the heat exchanger, so that a part of the air K sucked from the first suction port 731, the second suction port 732, and the third suction port 733 is sucked. K2 flows into the air guide path L, passes through the air blowing portion 343 of the fan casing 34, passes through the fourth notch portion 444 of the drain pan 40, and is guided from the front suction chamber S4 to the heat exchanger front portion 218.

このように仕切板50を設けたドレンパン40と化粧パネル70の間に導風路Lを設けることで、熱交換器前部218の下方に吸込口を設けなくても、第1吸込口731と第2吸込口732と第3吸込口733から吸い込んだ空気Kの一部の空気K2を熱交換器前部218まで導くことでき、トラック型の熱交換器21の全周から空気Kを吸い込むことが可能となる。 By providing the air guide path L between the drain pan 40 provided with the partition plate 50 and the decorative panel 70 in this way, the first suction port 731 and the first suction port 731 can be provided even if the suction port is not provided below the front portion 218 of the heat exchanger. A part of the air K2 sucked from the second suction port 732 and the third suction port 733 can be guided to the front part 218 of the heat exchanger, and the air K is sucked from the entire circumference of the truck-type heat exchanger 21. Is possible.

また、ファンユニット30の周囲をトラック型の熱交換器21が覆うことで、熱交換器21の空気吸込室Sに面する面積が増大する。そして熱交換器21と送風ファン31の距離は位置によって離れていたり、近いというバラつきが少なく、全体的にほぼ一定の距離となっており通風抵抗も少なくなる。よって熱交換器21を通過する空気Kは増大した空気吸込室S側の熱交換器21を通風抵抗が少なく風速と風量の偏りが小さい状態で通過することができ、熱交換器21を流れる冷媒と効率良く熱交換を行うことができる。熱交換器21は、図示しない冷房運転と暖房運転とが可能な可逆式の冷凍サイクル回路に接続されており、空気Kを冷房運転時には蒸発器として機能して冷却し、暖房運転時には凝縮器として機能して加熱する。 Further, by covering the periphery of the fan unit 30 with the truck-type heat exchanger 21, the area of the heat exchanger 21 facing the air suction chamber S increases. The distance between the heat exchanger 21 and the blower fan 31 is less likely to vary depending on the position, and the distance is almost constant as a whole, and the ventilation resistance is also reduced. Therefore, the air K passing through the heat exchanger 21 can pass through the heat exchanger 21 on the increased air suction chamber S side in a state where the ventilation resistance is small and the deviation between the air velocity and the air volume is small, and the refrigerant flowing through the heat exchanger 21. And heat exchange can be performed efficiently. The heat exchanger 21 is connected to a reversible refrigeration cycle circuit capable of cooling operation and heating operation (not shown), and functions to cool the air K as an evaporator during the cooling operation and as a condenser during the heating operation. It works and heats.

空気Kは熱交換器21で冷媒と熱交換されて吹出空気Hとなり、吹出空気Hはトラック型の熱交換器21の中央に配置された4つある送風ファン31のファン吸込口344に吸い込まれ、羽根車32からファンケーシング34の長い送風路33を通過する間に一方向に整流して吹出風向板38で風向が調節されて吹出口74から空調室Rに吹き出される。これにより風向が定まりショートサーキットを防止することが可能となる。
≪構造≫
The air K is heat-exchanged with the refrigerant by the heat exchanger 21 to become blown air H, and the blown air H is sucked into the fan suction ports 344 of the four blower fans 31 arranged in the center of the truck-type heat exchanger 21. While passing through the long air passage 33 of the fan casing 34 from the impeller 32, the air is rectified in one direction, the wind direction is adjusted by the blowout air direction plate 38, and the air is blown out from the air outlet 74 to the air conditioning chamber R. As a result, the wind direction is fixed and it is possible to prevent a short circuit.
≪Structure≫

図3と図4を参照して、上記のように室内機1は、化粧パネル70のパネル部71の向かい合う長辺の一辺側の第1吸込口731と長辺と隣り合う短辺側の第2吸込口732と第3吸込口733から室内の空気Kを吸い込み、熱交換された吹出空気Hを室内機1の中央に配置された送風ファン31から下方に向かって吹き出す構造である。よって、本体ユニット10内の外胴11に沿って流れる風は空調室R内の空気であり、外胴11の内部と外胴11の周囲での温度差は少ない。これにより板金である外胴11の内部と外部の温度差で発生する結露の発生が少なくなり、板厚の厚い発泡スチロールの断熱材13ではなく薄い断熱シート(図示無し)を貼付することで結露を防止できる。そのため外胴11の側板112、113の内側が直接空気吸込室Sとなり、側板112、113には板厚の厚い断熱材13が不要となり、本体ユニット10のサイズを小さくすることができる。また断熱材13が無い分、本体ユニット10内部の部品、例えば熱交換器21を大きくすることもできる。 With reference to FIGS. 3 and 4, as described above, the indoor unit 1 has the first suction port 731 on one side of the long side facing the panel portion 71 of the decorative panel 70 and the first suction port 731 on the short side adjacent to the long side. The structure is such that the indoor air K is sucked from the two suction ports 732 and the third suction port 733, and the heat-exchanged blown air H is blown downward from the blower fan 31 arranged in the center of the indoor unit 1. Therefore, the wind flowing along the outer cylinder 11 in the main body unit 10 is the air in the air conditioning chamber R, and the temperature difference between the inside of the outer cylinder 11 and the circumference of the outer cylinder 11 is small. As a result, the occurrence of dew condensation generated due to the temperature difference between the inside and the outside of the outer body 11 which is a sheet metal is reduced, and dew condensation is caused by attaching a thin heat insulating sheet (not shown) instead of the thick foamed styrofoam heat insulating material 13. Can be prevented. Therefore, the inside of the side plates 112 and 113 of the outer body 11 directly becomes the air suction chamber S, and the side plates 112 and 113 do not require a thick heat insulating material 13, so that the size of the main body unit 10 can be reduced. Further, since the heat insulating material 13 is not provided, the internal parts of the main body unit 10, for example, the heat exchanger 21 can be enlarged.

同様にドレンパン40の断熱部材41も、熱交換器21で発生するドレン水を受ける樋部45とそれを排出するドレンポンプ15の下部(第1コーナー部481)にだけ設ければよい。よって空気Kが通過する第1切欠部441、第2切欠部442、第3切欠部443、第4切欠部444の外胴11側には断熱部材41が不要となり、吸い込むための通路を広く確保することができる。また、ドレンパン40の中央を開口することで断熱部材41を形成する材料が少なくてすみ、またファンケーシング30を引き出すことが可能となる。 Similarly, the heat insulating member 41 of the drain pan 40 may be provided only in the gutter portion 45 that receives the drain water generated in the heat exchanger 21 and the lower portion (first corner portion 481) of the drain pump 15 that discharges the gutter portion 45. Therefore, the heat insulating member 41 is not required on the outer body 11 side of the first notch portion 441, the second notch portion 442, the third notch portion 443, and the fourth notch portion 444 through which the air K passes, and a wide passage for suction is secured. can do. Further, by opening the center of the drain pan 40, less material is required to form the heat insulating member 41, and the fan casing 30 can be pulled out.

次に実施例2について説明する。なお、実施例1と共通の部品については共通の符号を用いる。図10〜図14に示す天井埋込型空気調和機の室内機1aは、実施例1に対してファンケーシング34aと仕切板50aおよび組立構造が異なる。 Next, Example 2 will be described. A common reference numeral is used for the parts common to those in the first embodiment. The indoor unit 1a of the ceiling-embedded air conditioner shown in FIGS. 10 to 14 has a fan casing 34a, a partition plate 50a, and an assembly structure different from those of the first embodiment.

ファンケーシング34aは、羽根車32を収容する収容部342と収容部342から連続して仕切板50aまで形成される筒状の送風部343aを有する。仕切板50aには送風部用孔51aが設けられ、ファンケーシング34aの送風部343aは送風部用孔51aに繋がる。送風部用孔51aと化粧パネル70aの吹出口74の間には連結部材80が設けられる。
≪仕切板≫
The fan casing 34a has an accommodating portion 342 that accommodates the impeller 32 and a tubular blower portion 343a that is continuously formed from the accommodating portion 342 to the partition plate 50a. The partition plate 50a is provided with a hole 51a for a blower portion, and the blower portion 343a of the fan casing 34a is connected to the hole 51a for the blower portion. A connecting member 80 is provided between the blower hole 51a and the air outlet 74 of the decorative panel 70a.
≪Partition plate≫

仕切板50aは、ドレンパン40aの中央開口部43を塞ぐとともに、送風部用孔51aで送風部343aと連結部材80を連結するものである。また仕切板50aはドレンパン40aの周囲の形状に合わせて形成される。そしてドレンパン40aの取付部421aに合わせて形成された取付片53が設けられている。 The partition plate 50a closes the central opening 43 of the drain pan 40a and connects the blowing portion 343a and the connecting member 80 with the blowing portion hole 51a. Further, the partition plate 50a is formed according to the shape around the drain pan 40a. A mounting piece 53 formed in accordance with the mounting portion 421a of the drain pan 40a is provided.

仕切板50aの送風部用孔51aの周囲は固定部56となり、固定部56から送風部343aと連結部材80の肉厚分外周側の位置に立設されたフランジ部54を備える。フランジ部54は送風部用孔51aの上下それぞれに送風部343aと連結部材80の外形に合わせて設けられる。フランジ部54の内側に上下それぞれから送風部343aと連結部材80を挿入する。送風部343aと連結部材80は固定部56に当接し周囲をフランジ部54で支えられる。送風部343aと連結部材80とフランジ部54の隙間にはシール材55を設ける。これにより送風部343aと連結部材80は隙間なく仕切板50aに固定される。
≪連結部材≫
The periphery of the blower hole 51a of the partition plate 50a is a fixed portion 56, and the flange portion 54 is provided from the fixed portion 56 to the blower portion 343a and a flange portion 54 erected at a position on the outer peripheral side by the wall thickness of the connecting member 80. Flange portions 54 are provided above and below the blower portion holes 51a according to the outer shapes of the blower portion 343a and the connecting member 80. The blower portion 343a and the connecting member 80 are inserted from above and below inside the flange portion 54. The blower portion 343a and the connecting member 80 abut on the fixing portion 56 and are supported by the flange portion 54 around the periphery. A sealing material 55 is provided in the gap between the blower portion 343a, the connecting member 80, and the flange portion 54. As a result, the blower portion 343a and the connecting member 80 are fixed to the partition plate 50a without any gap.
≪Connecting member≫

連結部材80は一つの送風ファン31aと化粧パネル70aの吹出口74を連結する。また図11に示す二つの送風ファン31aを一つの大型の吹出口74aに連結する二台用連結部材81を設けてもよい。さらに図14に示すように化粧パネル70bに大型の吹出口74bを一つ設け、四つの送風ファン31aを吹出口74bに連結する四台用連結部材82を設けてもよい。 The connecting member 80 connects one blower fan 31a and the outlet 74 of the decorative panel 70a. Further, a connecting member 81 for two units may be provided to connect the two blower fans 31a shown in FIG. 11 to one large outlet 74a. Further, as shown in FIG. 14, one large outlet 74b may be provided on the decorative panel 70b, and a connecting member 82 for four units may be provided to connect the four blower fans 31a to the outlet 74b.

例えば、図10と図11に示すようにパネル部71aは二台用連結部材81を用いることで中央に二つ分の吹出口74を繋いで一つの開口とした大型の吹出口74aを備える。また左右端の吹出口74には連結部材80を用いることで合計3個の吹出口74、74aを有する化粧パネル70aとなる。また図示はしないが二台用連結部材81を用いることで右側二つと左側二つの吹出口74を一つの開口とした大型の吹出口74aを2個備えた化粧パネルとしてもよい。 For example, as shown in FIGS. 10 and 11, the panel portion 71a includes a large outlet 74a in which two outlets 74 are connected in the center to form one opening by using a connecting member 81 for two units. Further, by using the connecting member 80 for the air outlets 74 at the left and right ends, a decorative panel 70a having a total of three air outlets 74 and 74a can be obtained. Further, although not shown, a decorative panel may be provided with two large outlets 74a having two outlets 74 on the right side and two outlets 74 on the left side as one opening by using the connecting member 81 for two units.

図12に示す二台用連結部材81の断面図は連結部材80と共通である。連結部材80および二台用連結部材81は、ファンケーシング34aの送風部343aの先端部34a1に接続される筒状の連結送風部801と、連結送風部801の下端80aに吹出口74、74aに当接する固定片802を備える。連結送風部801は仕切板50aの送風部用孔51aから熱交換器前部218の下方に位置するまで前方に向かって延出される。 The cross-sectional view of the two-unit connecting member 81 shown in FIG. 12 is common to the connecting member 80. The connecting member 80 and the connecting member 81 for two units have a tubular connecting blowing portion 801 connected to the tip end portion 34a1 of the blowing portion 343a of the fan casing 34a, and outlets 74 and 74a at the lower end 80a of the connecting blowing portion 801. A fixed piece 802 to be abutted is provided. The connecting air blower 801 extends forward from the air blower hole 51a of the partition plate 50a until it is located below the heat exchanger front portion 218.

また図10(b)と図13に示す二台用連結部材81は、連結送風部801を二つ備える。各々の連結送風部801は吹出口74aの近傍部812で接続部811により接続される。接続部811は導風路L側に若干突出しているが、導風路Lを流れる空気K2は仕切板50aと連結送風部801の間で接続部811の上の空間を通り前部吸込室S4に導かれるため、空気K2の障害にはならないものである。 Further, the connecting member 81 for two units shown in FIGS. 10B and 13 includes two connecting blower portions 801. Each connecting blower 801 is connected by a connecting portion 811 at a portion 812 in the vicinity of the outlet 74a. The connecting portion 811 slightly protrudes toward the air guide L side, but the air K2 flowing through the air duct L passes through the space above the connecting portion 811 between the partition plate 50a and the connecting air passage 801 and passes through the front suction chamber S4. Because it is guided by, it does not interfere with the air K2.

吹出口74aの外形は、二台用連結部材81の各々の連結送風部801と接続部811を合わせた形状に形成される。これにより吹出口74の二倍以上の左右幅を備えることで、視覚的にワイドな吹出口74aとなり、ユーザーUに十分な吹出風量があることを認識させる。また、個々の連結部材80を取り付ける工数が一つの二台用連結部材81を取り付ける作業で済むので、取付の工数が半減される。 The outer shape of the air outlet 74a is formed by combining the connecting blower 801 and the connecting portion 811 of the connecting member 81 for two units. As a result, the width of the air outlet 74 is more than twice as wide as that of the air outlet 74, so that the air outlet 74a is visually wide, and the user U is made to recognize that the air outlet has a sufficient amount. Further, since the man-hours for attaching the individual connecting members 80 can be the work of attaching one connecting member 81 for two units, the man-hours for attaching are halved.

二台用連結部材81には下端80aに吹出風向板38aが設けられる。吹出風向板38aは、二台用連結部材81の内寸で左右幅分の長さを備える。吹出風向板38aは向きを変えても接続部811と接触しないように接続部811の下部では高さが短くなっている。
≪組立1≫
A blowout wind direction plate 38a is provided at the lower end 80a of the connecting member 81 for two units. The blowout wind direction plate 38a has a length corresponding to the left and right width in the inner dimension of the connecting member 81 for two units. The height of the blown wind direction plate 38a is shortened at the lower part of the connecting portion 811 so as not to come into contact with the connecting portion 811 even if the direction is changed.
≪Assembly 1≫

図10(a)を参照して室内機1aの組立について説明する。室内機1aの本体ユニット10aには、外胴11に熱交換器21とドレンパン40aが組み込まれている。そして、ファンユニット30aのモータ取付台(図示なし)とファン取付台37aを仕切板50aに取り付ける。この時ファンケーシング34aの送風部343aは、仕切板50aのフランジ部54に挿入され固定部56に当接させてシール材55により隙間なく取り付けられる。次に連結部材80と二台用連結部材81を、仕切板50aのフランジ部54に挿入し固定部56に当接させてシール材55により隙間なく取り付ける。 The assembly of the indoor unit 1a will be described with reference to FIG. 10A. In the main body unit 10a of the indoor unit 1a, a heat exchanger 21 and a drain pan 40a are incorporated in the outer body 11. Then, the motor mounting base (not shown) of the fan unit 30a and the fan mounting base 37a are mounted on the partition plate 50a. At this time, the blower portion 343a of the fan casing 34a is inserted into the flange portion 54 of the partition plate 50a, brought into contact with the fixing portion 56, and attached by the sealing material 55 without a gap. Next, the connecting member 80 and the connecting member 81 for two units are inserted into the flange portion 54 of the partition plate 50a, brought into contact with the fixing portion 56, and attached by the sealing material 55 without a gap.

ファンユニット30aを取り付けた仕切板50aをドレンパン40aの上に置き、ドレンパン40aの取付部421aと仕切板50aの取付片53を同時に外胴11の取付金具12の固定部122に固定する。 The partition plate 50a to which the fan unit 30a is attached is placed on the drain pan 40a, and the attachment portion 421a of the drain pan 40a and the attachment piece 53 of the partition plate 50a are simultaneously fixed to the fixing portion 122 of the attachment bracket 12 of the outer body 11.

次にこのように組み立てられた本体ユニット10aは天井裏T2に埋め込まれた複数の吊りボルトにて吊り下げることで天井裏T2に設置される。そして化粧パネル70aを空調室R側から取り付ける。この時化粧パネル70aの吹出口74、74aを連結部材80と二台用連結部材81の下端80aの口に位置を合わせる。そして化粧パネル70aのネジ止め部721を外胴11の取付金具12の固定部122に固定し、冷媒配管と電源線および信号線を室外機に連結することで室内機1aが空調室Rに取付けられる。
≪組立2≫
Next, the main body unit 10a assembled in this way is installed in the attic T2 by suspending it with a plurality of hanging bolts embedded in the attic T2. Then, the decorative panel 70a is attached from the air conditioning chamber R side. At this time, the outlets 74 and 74a of the decorative panel 70a are aligned with the mouths of the connecting member 80 and the lower end 80a of the connecting member 81 for two units. Then, the screwed portion 721 of the decorative panel 70a is fixed to the fixing portion 122 of the mounting bracket 12 of the outer body 11, and the indoor unit 1a is attached to the air conditioning chamber R by connecting the refrigerant pipe, the power supply line, and the signal line to the outdoor unit. Be done.
≪Assembly 2≫

また、連結部材80と二台用連結部材81は、先に化粧パネル70aの吹出口74、74aに取り付けておき、化粧パネル70aを外胴11の取付金具12の固定部122に固定するとともに、連結部材80と二台用連結部材81を仕切板50aのフランジ部54に挿入し固定部56に当接させてシール材55により隙間なく取り付けてもよい。この場合は連結部材80および二台用連結部材81が仕切板50aを介してファンケーシング34の送風部343と連結する。連結部材80および二台用連結部材81と吹出口74、74aとの合わせ部には段差や隙間が無くなることで露付きや通風の妨害が無くなる。 Further, the connecting member 80 and the connecting member 81 for two units are first attached to the outlets 74 and 74a of the decorative panel 70a, and the decorative panel 70a is fixed to the fixing portion 122 of the mounting bracket 12 of the outer body 11 and at the same time. The connecting member 80 and the connecting member 81 for two units may be inserted into the flange portion 54 of the partition plate 50a, brought into contact with the fixing portion 56, and attached by the sealing material 55 without a gap. In this case, the connecting member 80 and the connecting member 81 for two units are connected to the blower portion 343 of the fan casing 34 via the partition plate 50a. Dew and ventilation are eliminated by eliminating steps and gaps at the joints between the connecting member 80 and the connecting member 81 for two units and the outlets 74 and 74a.

本実施例では実施例1のファンケーシング34の送風部343を送風部343aと連結部材80に分割したことで、仕切板50aにファンユニット30aを組み付けることが可能となり位置決めが容易となり組立性が向上される。また、連結部材80を化粧パネル70aに取り付けておき、化粧パネル70aを本体ユニット10aに固定することで、連結部材80と吹出口74との合わせ部にズレや隙間が無くなり、露付きや通風の妨害が無くなる。また、隣り合う連結部材80を連結することで、幅の広い吹出口74aとなる。実施例1の幅の狭い吹出口では、空気調和機が空調制御に十分な風量を吹き出していても、ユーザーは不十分な吹出風量であると認識してしまう虞があるが、本実施例の幅の広い吹出口74aは視覚的にワイドな吹出口を提供しユーザーUに十分な吹出風量のある天井埋込型空気調和機であることを認識させることが可能となる。また、個々の連結部材80を取り付ける工数が半減される。 In this embodiment, the fan unit 343 of the fan casing 34 of the first embodiment is divided into the blower portion 343a and the connecting member 80, so that the fan unit 30a can be assembled to the partition plate 50a, which facilitates positioning and improves assemblability. Will be done. Further, by attaching the connecting member 80 to the decorative panel 70a and fixing the decorative panel 70a to the main body unit 10a, there is no deviation or gap in the joint portion between the connecting member 80 and the air outlet 74, and dew or ventilation is prevented. There is no obstruction. Further, by connecting the adjacent connecting members 80, a wide outlet 74a is obtained. At the narrow outlet of the first embodiment, even if the air conditioner blows out a sufficient amount of air for air conditioning control, the user may recognize that the amount of air is insufficient. The wide air outlet 74a provides a visually wide air outlet, and makes it possible for the user U to recognize that the air conditioner is a ceiling-embedded air conditioner having a sufficient air volume. In addition, the man-hours for attaching the individual connecting members 80 are halved.

1/1a:室内機、10/10a:本体ユニット、11:外胴、111:天板、112/113:側板、12:取付金具、13:断熱材、15:ドレンポンプ
21:熱交換器、215:熱交換器後部、216:熱交換器左部、217:熱交換器右部、218:熱交換器前部
30/30a:ファンユニット、31/31a:送風ファン、32:羽根車、33:送風路、34/34a:ファンケーシング、343/343a:送風部、35:回転軸、36:ファンモータ、38/38a:吹出風向板
40/40a:ドレンパン、41:断熱部材、42:ドレンシート、43:中央開口部、441:第1切欠部、442:第2切欠部、443:第3切欠部、444:第4切欠部、45:樋部、46:仕切部
50/50a:仕切板、51/51a:送風部用孔、53:取付片、54:フランジ部、56:固定部
70/70a:化粧パネル、71/71a:パネル部、72:側壁部、731:第1吸込口、732:第2吸込口、733:第3吸込口、734:吸込風向板、74/74a:吹出口
80:連結部材、801:連結送風部、81:2台用連結部材、811:接続部
R:空調室、T1:天井、T2:天井裏、F:送風機室、S:空気吸込室、L導風路、U:ユーザー、K/K1/K2:空気、H:吹出空気
1 / 1a: Indoor unit, 10 / 10a: Main unit, 11: Outer body, 111: Top plate, 112/113: Side plate, 12: Mounting bracket, 13: Insulation material, 15: Drain pump 21: Heat exchanger, 215: Rear part of heat exchanger, 216: Left part of heat exchanger, 217: Right part of heat exchanger, 218: Front part of heat exchanger 30 / 30a: Fan unit, 31 / 31a: Blower fan, 32: Impeller, 33 : Blower, 34 / 34a: Fan casing, 343 / 343a: Blower, 35: Rotating shaft, 36: Fan motor, 38 / 38a: Blowout air direction plate 40 / 40a: Drain pan, 41: Insulation member, 42: Drain sheet , 43: Central opening, 441: 1st notch, 442: 2nd notch, 443: 3rd notch, 444: 4th notch, 45: Higashi, 46: Partition 50 / 50a: Partition plate , 51 / 51a: Blower hole, 53: Mounting piece, 54: Flange part, 56: Fixed part 70 / 70a: Decorative panel, 71 / 71a: Panel part, 72: Side wall part, 731: First suction port, 732: 2nd suction port, 733: 3rd suction port, 734: suction air direction plate, 74 / 74a: air outlet 80: connecting member, 801: connecting air blower, 81: connecting member for 2 units, 811: connecting part R : Air conditioning room, T1: Ceiling, T2: Behind the ceiling, F: Blower room, S: Air suction room, L air guide, U: User, K / K1 / K2: Air, H: Blow air

Claims (1)

長方形の天板と、同天板の四辺から下方に延在する側板による箱型の外胴と、同外胴内に熱交換器を設けた本体ユニットと、室内空気を吸い込む一辺側に第1 吸込口と、前記熱交換器で熱交換された吹出空気を吹き出す吹出口を前記一辺と向かい合う他辺側に備え、前記本体ユニットの底面に取り付けられる化粧パネルを備えた天井埋込型空気調和機において、
前記本体ユニットは、内部にファンモータと同ファンモータの回転軸に軸支されたシロッコファンを有するファンユニットが設けられ、前記熱交換器は前記ファンユニットの前後左右の四方を囲み、前記熱交換器の下面には仕切板を備え、前記仕切板と前記化粧パネルの間と、前記熱交換器と前記側板の間とに前記吸込口から吸い込まれた室内空気が流入する空気吸込室が形成されることを特徴とする天井埋込型空気調和機。
A rectangular top plate, a box-shaped outer body with side plates extending downward from the four sides of the top plate, a main unit with a heat exchanger inside the outer body, and a first side on one side that sucks in indoor air . A ceiling-embedded air conditioner equipped with a suction port and an outlet for blowing out air that has been heat-exchanged by the heat exchanger on the other side facing the one side, and a decorative panel attached to the bottom surface of the main body unit. In
The main body unit is provided with a fan unit having a fan motor and a sirocco fan pivotally supported by the rotation shaft of the fan motor, and the heat exchanger surrounds the front, rear, left and right sides of the fan unit to exchange heat. A partition plate is provided on the lower surface of the vessel, and an air suction chamber into which indoor air sucked from the suction port flows is formed between the partition plate and the decorative panel and between the heat exchanger and the side plate. A ceiling-embedded air conditioner that features this.
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