JP2016080207A - Ceiling-embedded type air conditioner - Google Patents

Ceiling-embedded type air conditioner Download PDF

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JP2016080207A
JP2016080207A JP2014209322A JP2014209322A JP2016080207A JP 2016080207 A JP2016080207 A JP 2016080207A JP 2014209322 A JP2014209322 A JP 2014209322A JP 2014209322 A JP2014209322 A JP 2014209322A JP 2016080207 A JP2016080207 A JP 2016080207A
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cable
drain pan
ceiling
bell mouth
air
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JP6299552B2 (en
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拓 小椋
Taku Ogura
拓 小椋
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Fujitsu General Ltd
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  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling-embedded type air conditioner in which a feeding of a cable into a passage between a drain pan and a bell-mouth is easily carried out.SOLUTION: There are provided a blower fan 23, a heat exchanger 25 enclosing the blower fan and a bell mouth 24 within a box-shaped casing 10. An electrical element box 18 is arranged at the end part of the bell mouth, the surrounding of the bell mouth and a lower surface 101 of the casing are provided with drain pans. Within the drain pans are arranged electrical elements connected to a control board in the electrical elements box by cables 67. The lower edge of the bell mouth is provided with a cable storing wall 243 and the flange 244 extending to the drain pan side over an entire circumference or a part of the end part of the cable storing wall or a part of it. A cable passage 68 capable of storing a cable is formed between the drain pan and the cable storing wall is formed. The drain pan has a tapered surface 602 at an opposing surface of the flange, a clearance a3 between the end part 244a of the flange and the tapered surface is narrower than a diameter a1 of the cable 60 and set to such a size as one where the cable 67 is deformed and can pass through it.SELECTED DRAWING: Figure 3

Description

本発明は、天井内に筐体が埋設された天井埋込型空気調和機に関し、さらに詳しく言えばベルマウスとドレンパンの構造に関するものである。   The present invention relates to a ceiling-embedded air conditioner in which a casing is embedded in a ceiling, and more particularly, to a bell mouth and drain pan structure.

天井埋込型空気調和機は、空調室の天井に埋設される箱型の筐体と、同筐体の下面に取り付けて天井を覆う化粧パネルとからなる。筐体は内部中央に送風ファンと同送風ファンを囲む熱交換器とを備え、送風ファンの下部には吸込口から空気を取り込み送風ファンまで導くベルマウスが設けられる。ベルマウスの吸込口の端には天井埋込型空気調和機を制御する電装部品および制御基板が収納された電装品箱が配置される。またベルマウスの外側と筐体の下面を覆うドレンパンが配置されている。ドレンパンは熱交換器で生じるドレン水を受けるとともに、熱交換器で冷媒と熱交換された空気を吹き出す吹出口を備える。   The ceiling-embedded air conditioner includes a box-shaped casing embedded in the ceiling of the air conditioning room and a decorative panel that is attached to the lower surface of the casing and covers the ceiling. The casing includes a blower fan and a heat exchanger surrounding the blower fan in the center of the inside, and a bell mouth is provided at the lower part of the blower fan to take in air from the suction port and guide it to the blower fan. An electrical component box in which an electrical component for controlling the ceiling-embedded air conditioner and a control board are housed is disposed at the end of the bell mouth suction port. In addition, a drain pan that covers the outside of the bell mouth and the lower surface of the housing is disposed. The drain pan receives drain water generated in the heat exchanger and includes a blowout port for blowing out the air heat-exchanged with the refrigerant in the heat exchanger.

送風ファンにより化粧パネルに設けた吸込グリルから吸い込まれた空気は吸込口からベルマウスを通り熱交換器で冷媒と熱交換して、吹出口から風向板で風向を調節して室内に送出される。   The air sucked from the suction grill provided on the decorative panel by the blower fan passes through the bell mouth from the suction port, exchanges heat with the refrigerant in the heat exchanger, and is sent to the room after adjusting the air direction from the air outlet with the wind direction plate. .

ドレンパンには、筐体内部側にドレンパンに溜まったドレン水の水位を検知するフロートスイッチと、フロートスイッチの信号によりドレン水を屋外へ排出するドレンポンプが配置され、フロートスイッチとドレンポンプはいずれも電装品箱内の制御基板とケーブルで接続される。（特許文献１参照）   In the drain pan, there are a float switch that detects the water level of the drain water accumulated in the drain pan inside the housing, and a drain pump that discharges the drain water to the outside by the signal of the float switch. Both the float switch and drain pump are Connected to the control board in the electrical component box with a cable. (See Patent Document 1)

特許第５２９３６２３号公報Japanese Patent No. 5293623

ケーブルを制御基板に接続する作業は、まずケーブルをドレンパンの筐体内部側から筐体とドレンパンの隙間を通し電装品箱側へ引き出す。電装品箱側は化粧パネルを開放した際に使用者の視界に入るので、ケーブルが弛んで使用者の視界に入らないようにケーブルをドレンパンとベルマウスの間の通路に差し込んで吸込口の周囲を這わせたのち電装品箱内の制御基板に接続する。この時ベルマウスは弾性変形することで、片手でベルマウスを開き、もう一方の手でケーブルを通路に入れ込む作業となる。
しかし、片手でベルマウスを開き、もう一方の手でケーブルを通路に入れ込むのは非常に困難な作業となる。 In the operation of connecting the cable to the control board, first, the cable is drawn out from the inside of the drain pan casing through the gap between the casing and the drain pan to the electrical component box side. Since the electrical component box side enters the user's field of view when the decorative panel is opened, the cable is inserted into the passage between the drain pan and the bell mouth so that the cable does not loosen and enter the user's field of view. Connect to the control board in the electrical component box. At this time, the bell mouth is elastically deformed, so that the bell mouth is opened with one hand and the cable is inserted into the passage with the other hand.
However, it is very difficult to open the bell mouth with one hand and insert the cable into the aisle with the other hand.

本発明は以上述べた問題点を解決し、ドレンパンとベルマウスの間の通路にケーブルを入れ込む作業を容易にした天井埋込型空気調和機を提供することを目的とする。   An object of the present invention is to provide a ceiling-embedded air conditioner that solves the above-described problems and facilitates the work of inserting a cable into a passage between a drain pan and a bell mouth.

上述した課題を解決するために本発明は、空調室の天井に埋設される箱型の筐体と、同筐体の下面に取り付けて前記天井を覆う化粧パネルとからなり、前記筐体は内部中央に送風ファンと同送風ファンを囲む熱交換器とを備え、前記送風ファンの下部と前記化粧パネルの間には内部入口が吸込口となり同吸込口から空気を取り込み前記送風ファンまで導くラッパ状のベルマウスを設け、前記ベルマウスの前記化粧パネル側には電装品箱が配置され、前記ベルマウスの周囲と前記筐体の下面を覆うドレンパンを設け、同ドレンパンは前記熱交換器で生じるドレン水を受け、前記熱交換器で熱交換された空気を吹き出す吹出口を備えた天井埋込型空気調和機において、
前記ドレンパンには、前記筐体内部側に前記電装品箱内の制御基板とケーブルで接続される電装部品が配置され、前記ベルマウスの下縁には下方に向かって垂直に立設されたケーブル収納壁と、同ケーブル収納壁の端の全周または一部に前記ドレンパン側に延出するフランジとを備え、前記ドレンパンと前記ケーブル収納壁の間に前記ケーブルが収納可能なケーブル通路を形成し、前記ドレンパンは前記フランジの対面にテーパ面を設け、前記フランジの端部と前記テーパ面の間の隙間でなるケーブル挿入口が、前記ケーブルの直径よりも狭く、また前記ケーブルが変形した状態で通過でき、且つ変形が復元した状態では前記ケーブルが抜け落ちないことを特徴とする。 In order to solve the above-described problems, the present invention includes a box-shaped casing embedded in the ceiling of an air-conditioning room, and a decorative panel that is attached to the lower surface of the casing and covers the ceiling. A trumpet-like shape including a blower fan and a heat exchanger surrounding the blower fan at the center, and an internal inlet serves as a suction port between the lower part of the blower fan and the decorative panel, and takes air from the suction port to the blower fan. The bell mouth is provided with an electrical component box on the decorative panel side of the bell mouth, and a drain pan covering the periphery of the bell mouth and the lower surface of the housing is provided. The drain pan is a drain generated in the heat exchanger. In the ceiling-embedded air conditioner having a blowout port that receives water and blows out the air heat-exchanged by the heat exchanger,
In the drain pan, an electrical component connected by a cable to the control board in the electrical component box is arranged on the inner side of the housing, and a cable erected vertically downward on the lower edge of the bell mouth A storage wall and a flange extending toward the drain pan on the entire periphery or a part of the end of the cable storage wall, and a cable passage capable of storing the cable is formed between the drain pan and the cable storage wall. The drain pan has a tapered surface facing the flange, and a cable insertion opening formed by a gap between the end of the flange and the tapered surface is narrower than the diameter of the cable, and the cable is deformed. The cable is characterized in that the cable does not fall out in a state where it can pass through and the deformation is restored.

また前記ドレンパンは、前記ドレンパンの底面の角隅からケーブル通路までの間にケーブル溝を設け、同ケーブル溝の出口を前記テーパ面に設けることも含まれる。   In addition, the drain pan includes providing a cable groove between a corner of the bottom surface of the drain pan and a cable passage, and providing an outlet of the cable groove on the tapered surface.

上記のように構成した本発明の天井埋込空気調和機は、ドレンパンの筐体内部側に配置された電装部品から電装品箱側に引き出されたケーブルをケーブル通路に収納させ電装品箱に接続させることでケーブルが弛まずに使用者の目に触れないように設置することができる。   The ceiling-embedded air conditioner of the present invention configured as described above is connected to the electrical component box by storing the cable drawn from the electrical component arranged on the inside side of the drain pan housing to the electrical component box side in the cable passage. By doing so, it can be installed so that the cable does not loosen and does not touch the user's eyes.

またケーブルはフランジの端部とテーパ面の間の隙間でなるケーブル挿入口が、ケーブルの直径よりも狭く、またケーブルが変形した状態で通過でき、且つ変形が復元した状態ではケーブルが抜け落ちない隙間であるから、ケーブルを入れ込むとき片手でベルマウスを開く必要がないため作業が容易となる。   Also, the cable has a cable insertion opening formed by a gap between the end of the flange and the tapered surface that is narrower than the diameter of the cable, can pass through the cable in a deformed state, and the cable does not fall out when the deformation is restored. Therefore, it is not necessary to open the bell mouth with one hand when inserting the cable, so the operation becomes easy.

天井埋込型空気調和機の外観図である。It is an external view of a ceiling-embedded air conditioner. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 筐体を空調室内から見た構成図である。It is the block diagram which looked at the housing | casing from the air-conditioning room | chamber interior. ドレンパンとベルマウスの構成を示す斜視図である。It is a perspective view which shows the structure of a drain pan and a bell mouth. ケーブル取付説明図であり、（ａ）はケーブル取付前の説明図で、（ｂ）はケーブル取付後の説明図である。It is cable attachment explanatory drawing, (a) is explanatory drawing before cable attachment, (b) is explanatory drawing after cable attachment. 他の実施例のケーブル取付説明図である。It is cable attachment explanatory drawing of another Example.

以下、本発明を実施するための形態を、添付図面に基づいた実施例として詳細に説明するが、本発明はこれに限定されるものではない。   DESCRIPTION OF EMBODIMENTS Hereinafter, modes for carrying out the present invention will be described in detail as examples based on the accompanying drawings, but the present invention is not limited to these.

図１と図２に示す本発明による天井埋込形空気調和機１（以下空気調和機１とする）は、空調室内Ｋの天井Ｔに埋設される箱型の筐体１０と、同筐体の下面１０１に取り付ける四角形の化粧パネル３とからなる。筐体１０は筐体１０の側板１１に複数備えられた取付金具１２で図示しない天井裏壁面に埋め込まれた複数の吊りボルトに吊下げて設置される。また化粧パネル３は、取付金具１２に空調室内Ｋ側からネジで固定することで筐体１０に取り付けられ、筐体１０の下面１０１と底面１０１周囲の空調室内Ｋ側の天井面Ｔ１を覆う。   A ceiling-embedded air conditioner 1 (hereinafter referred to as an air conditioner 1) according to the present invention shown in FIGS. 1 and 2 includes a box-shaped casing 10 embedded in a ceiling T of an air-conditioned room K, and the casing. And a rectangular decorative panel 3 to be attached to the lower surface 101. The casing 10 is installed by suspending a plurality of suspension bolts embedded in a ceiling back wall (not shown) with a plurality of mounting brackets 12 provided on the side plate 11 of the casing 10. The decorative panel 3 is attached to the housing 10 by being fixed to the mounting bracket 12 from the air-conditioned room K side with screws, and covers the lower surface 101 of the case 10 and the ceiling surface T1 on the air-conditioned room K side around the bottom surface 101.

化粧パネル３には中央に筐体１０に空気を取り入れるためドット状の複数の吸込孔４０１が全体で四角形状となるように配置された吸込グリル４０が着脱可能に取り付けられている。また後述する本体吹出口１５に合わせた吹出口３１を設け、同吹出口３１には回動可能な風向板５を備える。   A suction grill 40 in which a plurality of dot-like suction holes 401 are arranged in a square shape as a whole is detachably attached to the decorative panel 3 in order to take air into the housing 10 at the center. Moreover, the blower outlet 31 matched with the main body blower outlet 15 mentioned later is provided, and the same blower outlet 31 is equipped with the wind direction board 5 which can be rotated.

筐体１０の外郭は、板金で形成された天板１３と、天板１３の外周から下方に延在する側板１１とで形成される。天板１３と側板１１の内周面には図２に示すように断熱部材１４が設けられる。また、天板１３の中央内側にはネジによりファンモータ２１が固定され、ファンモータ２１から下方に伸びるシャフト２２に送風ファン２３のハブ２３ａが軸支される。送風ファン２３はハブ２３ａとシュラウド２３ｂと複数のブレード２３ｃとからなる所謂ターボファンである。送風ファン２３はファンモータ２１とともに筐体１０の内部のほぼ中央に配置される。   The outer casing 10 is formed of a top plate 13 made of sheet metal and a side plate 11 extending downward from the outer periphery of the top plate 13. A heat insulating member 14 is provided on the inner peripheral surfaces of the top plate 13 and the side plate 11 as shown in FIG. A fan motor 21 is fixed inside the top plate 13 by screws, and a hub 23a of the blower fan 23 is pivotally supported on a shaft 22 extending downward from the fan motor 21. The blower fan 23 is a so-called turbo fan including a hub 23a, a shroud 23b, and a plurality of blades 23c. The blower fan 23 and the fan motor 21 are disposed approximately at the center inside the housing 10.

図２ないし図５に示すように送風ファン２３の下部と化粧パネル３との間には内部入口が吸込口１６となるラッパ状のベルマウス２４を設ける。ベルマウス２４は、樹脂製で送風ファン２３から徐々にラッパ状に広がる吸込案内部２４１と、吸込案内部２４１の下端に位置し、吸込グリル４の四角形状に配置された吸込孔４０１に合わせ吸込孔４０１を覆う吸込口枠２４２とからなる。また吸込口枠２４２の下縁には下方に向かって垂直に立設されたケーブル収納壁２４３を備える。   As shown in FIGS. 2 to 5, a trumpet-shaped bell mouth 24 is provided between the lower portion of the blower fan 23 and the decorative panel 3. The bell mouth 24 is made of a resin and gradually extends in a trumpet shape from the blower fan 23. The bell mouth 24 is positioned at the lower end of the suction guide portion 241, and is sucked in accordance with the suction holes 401 arranged in the rectangular shape of the suction grill 4. The suction port frame 242 covers the hole 401. A cable storage wall 243 is provided on the lower edge of the suction inlet frame 242 so as to stand vertically downward.

ファンモータ２１により回転駆動される送風ファン２３により、空調室内Ｋの空気が吸込グリル４の吸込孔４０１から吸込口１６に吸い込まれる。筐体１０に吸い込まれた空気は、ベルマウス２４の吸込案内部２４１に沿って送風ファン２３に案内され、送風ファン２３の外方に向かって吹き出される。   The air in the air-conditioned room K is sucked into the suction port 16 from the suction hole 401 of the suction grill 4 by the blower fan 23 that is rotationally driven by the fan motor 21. The air sucked into the housing 10 is guided to the blower fan 23 along the suction guide portion 241 of the bell mouth 24 and blown out toward the outside of the blower fan 23.

筐体１０にはベルマウス２４の周囲と筐体１０の下面１０１を覆う発泡断熱材でなるドレンパン６０を設ける。ドレンパン６０は後述する熱交換器２５で生じるドレン水を受けるとともに、熱交換器２５で冷媒と熱交換された空気を吹き出す本体吹出口１５を備える。   The casing 10 is provided with a drain pan 60 made of a foam heat insulating material that covers the periphery of the bell mouth 24 and the lower surface 101 of the casing 10. The drain pan 60 is provided with a main body outlet 15 that receives drain water generated in the heat exchanger 25 described later and blows out air that has been heat-exchanged with the refrigerant in the heat exchanger 25.

送風ファン２３の周囲には、断熱部材１４とドレンパン６０とで上下を挟まれた熱交換器２５が配設される。熱交換器２５は所定の間隔で積層された複数の矩形のアルミフィン２５１と、このアルミフィン２５１に直交するように配設された複数の伝熱管２５２とからなるフィンチューブ型の熱交換器２５である。熱交換器２５は送風ファン２３を筐体１０の四辺に沿って囲むように設けられる。また熱交換器２５の一角部では熱交換器２５の端部と端部の間で伝熱管２５２を外へ引き出すために隙間が設けられている。この角部が配管接続部２６となり引き出された伝熱管２５２は図示しない屋外の室外機と連結される。   A heat exchanger 25 sandwiched between the heat insulating member 14 and the drain pan 60 is disposed around the blower fan 23. The heat exchanger 25 is a fin-tube heat exchanger 25 including a plurality of rectangular aluminum fins 251 stacked at a predetermined interval and a plurality of heat transfer tubes 252 arranged to be orthogonal to the aluminum fins 251. It is. The heat exchanger 25 is provided so as to surround the blower fan 23 along the four sides of the housing 10. In addition, a gap is provided at one corner of the heat exchanger 25 in order to draw the heat transfer tube 252 outside between the end portions of the heat exchanger 25. The corner portion becomes a pipe connection portion 26 and the drawn heat transfer tube 252 is connected to an outdoor outdoor unit (not shown).

図３に示すようにベルマウス２４の化粧パネル側で配管接続部２６に位置する吸込口枠２４２にはＬ字状に形成された電装品箱１８が配置される。電装品箱１８はＬ字状の箱体１８１と箱体１８１を覆う蓋１８２からなり、箱体１８１内にはＬ字状の一方にコンデンサやコイルを有する電源部品１８３を収納し、もう一方にコネクタ１８４ａや制御に関係する部品が配置された制御基板１８４を収納する。Ｌ字状の両端で箱体１８１と蓋１８２の間には後述するケーブル６７を引き込むケーブル引込口１８５が設けられる。
電装品箱１８を配管接続部２６側に配置するのは、配管接続部２６に熱交換器２５のない隙間がありこの隙間では熱交換されないためベルマウス２４から熱交換器２５に流れる空気が少なくても影響が少ない場所のためである。 As shown in FIG. 3, an electrical component box 18 formed in an L shape is disposed on the suction inlet frame 242 located on the pipe connection portion 26 on the decorative panel side of the bell mouth 24. The electrical component box 18 includes an L-shaped box 181 and a lid 182 covering the box 181, and the box 181 stores a power supply component 183 having a capacitor or a coil on one side and the other side. The control board 184 on which the connector 184a and parts related to control are arranged is accommodated. Between the box body 181 and the lid 182 at both ends of the L-shape, a cable inlet 185 for drawing a cable 67 described later is provided.
The electrical component box 18 is arranged on the pipe connection portion 26 side because there is a gap without the heat exchanger 25 in the pipe connection portion 26, and heat is not exchanged in this gap, so less air flows from the bell mouth 24 to the heat exchanger 25. This is because the place has little influence.

熱交換器２５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、送風ファン２３から導かれた空気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。   The heat exchanger 25 is connected to a reversible refrigeration cycle circuit capable of a cooling operation and a heating operation (not shown), and cools the air guided from the blower fan 23 by functioning as an evaporator during the cooling operation, During heating operation, it functions as a condenser and heats.

熱交換器２５と側板１１周囲の断熱部材１４との間と、ドレンパン６０に設けられた筐体１０の四辺それぞれに沿った４つの本体吹出口１５は、送風ファン２３から吹き出された空気を化粧パネル３の吹出口３１へ案内する送風路１７となる。熱交換器２５で熱交換された空気は送風路１７と本体吹出口１５を通り化粧パネル３の吹出口３１から空調室内Ｋに吹き出される。   The four main body outlets 15 between the heat exchanger 25 and the heat insulating member 14 around the side plate 11 and along each of the four sides of the casing 10 provided in the drain pan 60 make up the air blown from the blower fan 23. It becomes the ventilation path 17 guided to the blower outlet 31 of the panel 3. The air heat-exchanged by the heat exchanger 25 passes through the air passage 17 and the main body outlet 15 and is blown out from the outlet 31 of the decorative panel 3 into the air-conditioned room K.

熱交換器２５の下部を受けるドレンパン６０は、熱交換器２５と対向する面に樹脂製のドレンパンプレート６２を備え熱交換器２５で生成されるドレン水を受け止める。ドレン水は図３に示す筐体１０内部側で配管接続部２６に隣り合った一方の角部２７にある電装部品のドレンポンプ６５と、ドレンポンプ６５に繋がったドレンパイプ（図示なし）により屋外へ排出される。ドレンポンプ６５はケーブル６７で電装品箱１８の制御基板１８４に接続される。   A drain pan 60 that receives the lower part of the heat exchanger 25 includes a resin drain pan plate 62 on a surface facing the heat exchanger 25 and receives drain water generated by the heat exchanger 25. The drain water is taken outdoors by a drain pump 65 of an electrical component at one corner 27 adjacent to the pipe connection portion 26 inside the housing 10 shown in FIG. 3 and a drain pipe (not shown) connected to the drain pump 65. Is discharged. The drain pump 65 is connected to the control board 184 of the electrical component box 18 by a cable 67.

配管接続部２６に向かい合った角部２８のドレンパン６０にはドレンパンプレート６２に溜まったドレン水の水位を図る電装部品のフロートスイッチ６６が配置されている。フロートスイッチ６６はケーブル６７で電装品箱１８の制御基板１８４に接続される。   An electrical component float switch 66 is disposed on the drain pan 60 at the corner portion 28 facing the pipe connecting portion 26 to adjust the level of drain water accumulated in the drain pan plate 62. The float switch 66 is connected to the control board 184 of the electrical component box 18 by a cable 67.

尚、ケーブル６７は押圧により弾性変形するものであり、図５（ａ）に示すようにケーブル６７の直径ａ１は例えば約６．５ｍｍである。   The cable 67 is elastically deformed by pressing, and the diameter a1 of the cable 67 is, for example, about 6.5 mm as shown in FIG.

図５（ａ）に示すようにドレンパン６０は、ベルマウス２４のケーブル収納壁２４３の対面にケーブル収納壁２４３と平行となる壁面６０１を設ける。この壁面６０１とケーブル収納壁２４３との間がケーブル６７を収納可能とし、またケーブル６７を変形した状態で保持して自重で落ちない隙間ａ２を有するケーブル通路６８となる。   As shown in FIG. 5A, the drain pan 60 is provided with a wall surface 601 that is parallel to the cable storage wall 243 on the opposite side of the cable storage wall 243 of the bell mouth 24. The cable 67 can be stored between the wall surface 601 and the cable storage wall 243, and a cable passage 68 having a gap a2 that is held in a deformed state and does not fall by its own weight.

ベルマウス２４のケーブル収納壁２４３は、ケーブル収納壁２４３下端の全周または一部にドレンパン６０側に延出するフランジ２４４を備える。またドレンパン６０はフランジ２４４の対面に位置する部分にテーパ面６０２を設ける。そしてフランジ２４４の端部２４４ａとテーパ面６０２の間の隙間ａ３がケーブル挿入口６９となる。ここで隙間ａ３の長さはフランジ２４４の端部２４４ａからテーパ面６０２に引いた垂線の長さである。
ケーブル挿入口６９はケーブル６７の直径ａ１よりも狭く、また変形した状態のケーブル６７が通過でき、この変形が復元した状態ではケーブル６７が抜け落ちない隙間にする。 The cable storage wall 243 of the bell mouth 24 includes a flange 244 that extends toward the drain pan 60 on the entire periphery or part of the lower end of the cable storage wall 243. Further, the drain pan 60 is provided with a tapered surface 602 at a portion located opposite to the flange 244. A gap a <b> 3 between the end 244 a of the flange 244 and the tapered surface 602 serves as the cable insertion port 69. Here, the length of the gap a <b> 3 is the length of the perpendicular drawn from the end 244 a of the flange 244 to the tapered surface 602.
The cable insertion port 69 is narrower than the diameter a1 of the cable 67, and the deformed cable 67 can pass therethrough. In this restored state, the cable 67 is made a gap that does not fall out.

尚、ケーブル６７の直径ａ１と、ケーブル通路６８の隙間ａ２と、ケーブル挿入口６９の隙間ａ３は、ａ１＞ａ２≧ａ３となるのが望ましい。例えばケーブル６７の直径ａ１を約６．５ｍｍとした場合は、ケーブル通路６８の隙間ａ２は約６ｍｍで、ケーブル挿入口６９の隙間ａ３は約５．８〜６ｍｍとなる。   The diameter a1 of the cable 67, the gap a2 of the cable passage 68, and the gap a3 of the cable insertion port 69 are preferably a1> a2 ≧ a3. For example, when the diameter a1 of the cable 67 is about 6.5 mm, the gap a2 of the cable passage 68 is about 6 mm, and the gap a3 of the cable insertion port 69 is about 5.8 to 6 mm.

また、図５（ａ）と図６に示すようにドレンパン６０のテーパ面６０２の下端６０１ａとフランジ２４４の端部２４４ａは水平もしくはフランジ２４４の端部２４４ａをテーパ面６０２の下端６０１ａより上方に位置させる。そしてケーブル挿入口６９は必ずフランジ２４４の端部２４４ａとテーパ面６０２の間に形成されるようにする。   5A and 6, the lower end 601a of the tapered surface 602 of the drain pan 60 and the end 244a of the flange 244 are horizontal or the end 244a of the flange 244 is positioned above the lower end 601a of the tapered surface 602. Let The cable insertion port 69 is always formed between the end 244 a of the flange 244 and the tapered surface 602.

また、ドレンパン６０は、図３と図４に示すように筐体１０の側板１１との間と、ドレンパン６０の底面６０３にケーブル溝６３を備える。ケーブル溝６３は電装品箱１８が配置されていない角部２７、２８、２９の角隅２７ａ、２８ａ、２９ａからケーブル通路６８までの間に形成された溝であり、ケーブル溝６３の出口６３ａはテーパ面６０２に設けられる。   Further, the drain pan 60 includes cable grooves 63 between the side plate 11 of the housing 10 and the bottom surface 603 of the drain pan 60 as shown in FIGS. 3 and 4. The cable groove 63 is a groove formed between the corners 27a, 28a, 29a of the corners 27, 28, 29 where the electrical component box 18 is not arranged and the cable passage 68, and an outlet 63a of the cable groove 63 is Provided on the tapered surface 602.

またベルマウス２４のフランジ２４４は必ずしもケーブル収納壁２４３の全周に設けるのではなく、例えば図４に示すように角部２８のケーブル溝６３から角部２９のケーブル溝６３ａの上を通り電装品箱１８のケーブル引込口１８５の間に設けてもよい。これにより角部２８、２９から引き出されたケーブル６９を電装品箱１８に繋ぐことができる。   Further, the flange 244 of the bell mouth 24 is not necessarily provided on the entire circumference of the cable housing wall 243. For example, as shown in FIG. 4, the electrical component passes through the cable groove 63 of the corner portion 28 and the cable groove 63a of the corner portion 29. It may be provided between the cable inlets 185 of the box 18. Thereby, the cable 69 drawn out from the corner portions 28 and 29 can be connected to the electrical component box 18.

以上の構成により、例えば電装部品のフロートスイッチ６６から引き出されたケーブル６７を電装品箱１８の制御基板１８４に接続する作業は、まずケーブル６７をドレンパン６０の筐体１０内部側からドレンパン６０と筐体の１０の側板１１の間のケーブル溝６３を通しドレンパン６０の底面６０３側に引き出す。引き出されたケーブル６７はドレンパン６０の底面６０３のケーブル溝６３に沿わせて、ドレンパン６０のテーパ面６０２とベルマウス２４のケーブル収納壁２４３の間にあるケーブル挿入口６９からケーブル通路６８に指でケーブル６７を入れ込む。入れ込んだケーブル６７はケーブル通路６８に収納される。ケーブル通路６８に収納されたケーブル６７をベルマウス２４の収納壁２４３に沿って這わせたのちに蓋１８２が外された状態の電装品箱１８のケーブル引込口１８５から電装品箱１８に挿入させ制御基板１８４のコネクタ１８４ａに接続させる。
そして、その他の電装部品（例えばドレンポンプ６５）との接続が完了した時に電装品箱１８の蓋１８２を閉じる。 With the above configuration, for example, the operation of connecting the cable 67 drawn from the float switch 66 of the electrical component to the control board 184 of the electrical component box 18 is performed by first connecting the cable 67 from the inside of the casing 10 of the drain pan 60 to the drain pan 60 and the casing. The cable groove 63 between the ten side plates 11 of the body is passed through and pulled out to the bottom surface 603 side of the drain pan 60. The pulled-out cable 67 extends along the cable groove 63 on the bottom surface 603 of the drain pan 60, and is inserted by a finger into the cable passage 68 from the cable insertion port 69 between the tapered surface 602 of the drain pan 60 and the cable storage wall 243 of the bell mouth 24. Insert the cable 67. The inserted cable 67 is stored in the cable passage 68. The cable 67 accommodated in the cable passage 68 is inserted along the storage wall 243 of the bell mouth 24 and then inserted into the electrical component box 18 from the cable inlet 185 of the electrical component box 18 with the lid 182 removed. The control board 184 is connected to the connector 184a.
Then, the lid 182 of the electrical component box 18 is closed when the connection with other electrical components (for example, the drain pump 65) is completed.

一連の作業では、従来例のようにベルマウス２４を開く作業が必要ないため両手でケーブル通路６８にケーブル６７を入れ込むことが可能であり、一旦入れ込んだケーブル６７は抜けにくくなることから作業性が向上する。また、ケーブル通路６８を形成する部品（ベルマウス２４、ドレンパン６０）を弾性変形させる必要がないため、部品の強度が確保できる。   In a series of operations, it is not necessary to open the bell mouth 24 as in the conventional example, so it is possible to insert the cable 67 into the cable passage 68 with both hands. Improves. Moreover, since it is not necessary to elastically deform the components (bell mouth 24, drain pan 60) forming the cable passage 68, the strength of the components can be ensured.

１：天井埋込型空気調和機（空気調和機）、１０：筐体、１６：吸込口、１８：電装品箱、１８２：蓋、１８４：制御基板、１８５：ケーブル引込口
２３：送風ファン、２４：ベルマウス、２４３：ケーブル収納壁、２４４：フランジ、２５：熱交換器
３：化粧パネル、３１：吹出口、４：吸込グリル、４０１：吸込孔、５：風向板
６０：ドレンパン、６０２：テーパ面、６３：ケーブル溝、６５：ドレンポンプ、６６：フロートスイッチ、６７：ケーブル、６８：ケーブル通路、６９：ケーブル挿入口
ａ１：（ケーブル）直径、ａ２：隙間、ａ３：隙間、Ｋ：空調室内、Ｔ１：天井面
1: ceiling-embedded air conditioner (air conditioner), 10: housing, 16: suction port, 18: electrical component box, 182: lid, 184: control board, 185: cable inlet 23: blower fan, 24: Bell mouth, 243: Cable storage wall, 244: Flange, 25: Heat exchanger 3: Cosmetic panel, 31: Air outlet, 4: Suction grill, 401: Suction hole, 5: Wind direction plate 60: Drain pan, 602: Tapered surface, 63: cable groove, 65: drain pump, 66: float switch, 67: cable, 68: cable passage, 69: cable insertion port a1: (cable) diameter, a2: gap, a3: gap, K: air conditioning Indoor, T1: Ceiling

Claims (2)

空調室の天井に埋設される箱型の筐体と、同筐体の下面に取り付けて前記天井を覆う化粧パネルとからなり、前記筐体は内部中央に送風ファンと同送風ファンを囲む熱交換器とを備え、前記送風ファンの下部と前記化粧パネルの間には内部入口が吸込口となり同吸込口から空気を取り込み前記送風ファンまで導くラッパ状のベルマウスを設け、前記ベルマウスの前記化粧パネル側には電装品箱が配置され、前記ベルマウスの周囲と前記筐体の下面を覆うドレンパンを設け、同ドレンパンは前記熱交換器で生じるドレン水を受け、前記熱交換器で熱交換された空気を吹き出す吹出口を備えた天井埋込型空気調和機において、
前記ドレンパンには、前記筐体内部側に前記電装品箱内の制御基板とケーブルで接続される電装部品が配置され、
前記ベルマウスの下縁には下方に向かって垂直に立設されたケーブル収納壁と、同ケーブル収納壁の端の全周または一部に前記ドレンパン側に延出するフランジとを備え、前記ドレンパンと前記ケーブル収納壁の間に前記ケーブルが収納可能なケーブル通路を形成し、
前記ドレンパンは前記フランジの対面にテーパ面を設け、前記フランジの端部と前記テーパ面の間の隙間でなるケーブル挿入口が、前記ケーブルの直径よりも狭く、また前記ケーブルが変形した状態で通過でき、且つ変形が復元した状態では前記ケーブルが抜け落ちないことを特徴とする天井埋込型空気調和機。 It consists of a box-shaped casing embedded in the ceiling of the air-conditioning room and a decorative panel that is attached to the lower surface of the casing and covers the ceiling. A trumpet-shaped bell mouth is provided between the lower part of the blower fan and the decorative panel, and an internal inlet serves as a suction port to take air from the suction port and guide the air to the blower fan. An electrical component box is arranged on the panel side, and a drain pan that covers the periphery of the bell mouth and the lower surface of the housing is provided. The drain pan receives drain water generated by the heat exchanger, and heat is exchanged by the heat exchanger. In a ceiling-embedded air conditioner equipped with a blowout port for blowing out fresh air,
In the drain pan, an electrical component connected by a cable to the control board in the electrical component box is disposed on the inside of the housing,
A cable storage wall standing vertically downward at the lower edge of the bell mouth, and a flange extending toward the drain pan on the entire periphery or part of the end of the cable storage wall, the drain pan Forming a cable passage capable of storing the cable between the cable storage wall and the cable storage wall;
The drain pan has a tapered surface facing the flange, and a cable insertion opening formed by a gap between the end of the flange and the tapered surface is narrower than the diameter of the cable and passes in a deformed state. A ceiling-embedded air conditioner characterized in that the cable does not fall out when it is deformed and restored. 前記ドレンパンは、前記ドレンパンの底面の角隅からケーブル通路までの間にケーブル溝を設け、同ケーブル溝の出口を前記テーパ面に設け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機。
2. The ceiling-embedded air according to claim 1, wherein the drain pan is provided with a cable groove between a corner of a bottom surface of the drain pan and a cable passage, and an outlet of the cable groove is provided on the tapered surface. Harmony machine.
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