JP2006336948A - Air conditioner - Google Patents

Air conditioner Download PDF

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JP2006336948A
JP2006336948A JP2005162717A JP2005162717A JP2006336948A JP 2006336948 A JP2006336948 A JP 2006336948A JP 2005162717 A JP2005162717 A JP 2005162717A JP 2005162717 A JP2005162717 A JP 2005162717A JP 2006336948 A JP2006336948 A JP 2006336948A
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drain
heat exchange
heat exchanger
air
mounting
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JP4585377B2 (en
Inventor
Nobusuke Shirakawa
暢介 白川
Hiromasa Yamane
宏昌 山根
Masaya Aofuji
誠哉 青藤
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Toshiba Carrier Corp
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Toshiba Carrier Corp
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Priority to JP2005162717A priority Critical patent/JP4585377B2/en
Priority to KR1020060049276A priority patent/KR100735210B1/en
Priority to CNB2006101060749A priority patent/CN100472145C/en
Publication of JP2006336948A publication Critical patent/JP2006336948A/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
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • 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
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of obtaining improvement of heat exchange efficiency and air conditioning performance by smoothly guiding drain water accumulated more in a secondary side of a drain pan to a primary side to positively carry out draining of the drain water, and preventing direct intrusion of raw air into the secondary side via a drain communication passage. <P>SOLUTION: The air conditioner is provided with a body 1 provided with a suction opening 11 and a blow out opening 12, a blower 8 housed in the body and forming a heat exchange air induction passage R, a heat exchanger 9 positioned in the heat exchange air induction passage, and the drain pan 10. The drain pan is provided with a mounting part 20 for mounting the heat exchanger, a primary side drain receiver parts 21 provided in an windward side of the heat exchange air induction passage and a secondary side drain receiving part 22 provided in a leewind side, in both sides of the mounting part, and a first drain communication passage 27 and a second drain communication passage 28 guiding the drain water received by the secondary side drain receiving part to a mounting part exterior for the time being from both side parts of the mounting part, going around the mounting part, and guiding the drain water to the primary drain receiving part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、天井裏に取付けられるビルトインタイプであり、たとえばダクトを介して天井板に設けられる吹出し口と連通する室内機である空気調和装置に関する。   The present invention relates to an air conditioner that is a built-in type that is attached to the back of a ceiling, and is an indoor unit that communicates with, for example, a blowout opening provided in a ceiling plate via a duct.

店舗などの広い空間を空調する場合には、空気調和装置の室内機として壁面に取付けられる、いわゆる壁掛け形よりも、天井裏に取付けられるビルトインタイプのものの方が有利である。すなわち、この種の室内機は、天井板に設けられる複数の吹出し口とダクトを介して連通され、室内全体に均一に熱交換空気を吹出すことができて快適空調が得られ、しかも壁掛け形のように居住者が受ける圧迫感がない。
上記ビルトインタイプの空気調和装置室内機は、筐体である本体内に、送風機と、熱交換器と、この熱交換器の下部に設けられ、熱交換器を載置するドレンパンとを備えている。上記ドレンパンは、上記熱交換器を載置する載置部を挟んで、熱交換空気導通路の風上側（１次側）と風下側（２次側）にドレン水の受け部が形成される。 When air-conditioning a wide space such as a store, a built-in type that is attached to the back of the ceiling is more advantageous than a so-called wall-mounted type that is attached to a wall surface as an indoor unit of an air conditioner. In other words, this type of indoor unit communicates with a plurality of outlets provided in the ceiling plate through ducts, and can uniformly blow heat exchange air over the entire room, providing comfortable air conditioning, and is also wall-mounted. There is no feeling of oppression that the resident receives like.
The built-in type air conditioner indoor unit includes a blower, a heat exchanger, and a drain pan provided on a lower portion of the heat exchanger, on which the heat exchanger is placed, in a main body that is a casing. . In the drain pan, drain water receiving portions are formed on the windward side (primary side) and leeward side (secondary side) of the heat exchange air conduction path with the placement portion on which the heat exchanger is placed interposed therebetween. .

このような構成で、冷凍サイクル運転をなすとともに送風機を駆動することにより、熱交換器において冷媒と室内空気とが熱交換をなし、熱交換した空気はダクトを介して室内へ吹出される。室内空気に含まれる水分は熱交換にともなって凝縮され、ドレン水が生成されてドレンパンに滴下する。
上記ドレンパンにおける２次側と１次側の受け部を比較すると、通風抵抗によって発生する圧力差分で、１次側よりも２次側にドレン水が溜まり易い。また、現地で施工されるダクトの形態によっても風量が大きく変動し、送風機の送風量が多くなるほど２次側に溜まるドレン水も多くなり、その結果、熱交換器下部が浸水することになる。 With such a configuration, by performing the refrigeration cycle operation and driving the blower, the refrigerant and the room air exchange heat in the heat exchanger, and the heat exchanged air is blown out into the room through the duct. Moisture contained in the room air is condensed along with heat exchange, and drain water is generated and dripped onto the drain pan.
When the secondary side and primary side receiving portions of the drain pan are compared, drain water is more likely to accumulate on the secondary side than on the primary side due to the pressure difference generated by the ventilation resistance. Also, the amount of air fluctuates greatly depending on the form of the ducts constructed on site, and as the amount of air blown by the blower increases, more drain water accumulates on the secondary side, and as a result, the lower part of the heat exchanger is submerged.

熱交換器下部にドレン水が浸水することにより、熱交換器の熱交換効率が低減して性能が低下する。熱交換器の温度低下にともなってドレン水が凍結し、条件によっては凍結した氷が肥大成長し、ついには熱交換器自体が破損に至る虞れがある。さらに、２次側に多く溜まったドレン水の一部が送風によって吹き飛ばされ、そのまま熱交換空気に乗って室内へ飛散し快適空調を損なう虞れがある。
そこで、［特許文献１］には、熱交換器に対する風圧の差で２次側に多く溜まったドレン水を円滑に１次側に戻し、かつ容易に外部へ排水できるドレン受け皿を備えた空気調和機が開示されている。具体的には、ドレン受け皿中央に熱交換器を載置する凸部を設け、凸部の風下側（２次側）に第１溝を設け、風上側（１次側）に第１溝よりも深い第２溝を設けて、これら第１溝と第２溝とを複数個の傾斜通路で連通させてなる。
実開昭６２−１７６６１２号公報 When the drain water is submerged in the lower part of the heat exchanger, the heat exchange efficiency of the heat exchanger is reduced and the performance is lowered. As the temperature of the heat exchanger decreases, the drain water freezes, and depending on the conditions, the frozen ice grows and may eventually damage the heat exchanger itself. Further, a part of the drain water accumulated on the secondary side is blown off by the air blowing, and the heat exchange air may be directly scattered into the room to impair the comfortable air conditioning.
Therefore, [Patent Document 1] describes an air conditioner provided with a drain tray that can smoothly return drain water accumulated on the secondary side to the primary side due to the difference in wind pressure with respect to the heat exchanger and can easily drain the drain water to the outside. A machine is disclosed. Specifically, a convex part for placing the heat exchanger is provided in the center of the drain pan, the first groove is provided on the leeward side (secondary side) of the convex part, and the first groove is provided on the upstream side (primary side). A deep second groove is provided, and the first groove and the second groove are communicated with each other through a plurality of inclined passages.
Japanese Utility Model Publication No. 62-176612

上述の［特許文献１］によれば、熱交換作用にともない熱交換器の表面を流下するドレン水は、送風機の風圧の影響を受けて風下側であるドレン受け皿の第１溝に多く溜る。このドレン水は、凸部に設けられる傾斜通路を通って風上側である第２溝へ導かれ、第２溝側に設けられる排水管から本体外へ排水される、とある。
しかしながら上記傾斜通路は、送風機から熱交換器を介して吹出し口を結ぶ直線的な送風路中に設けられている。そのため、送風機から吹出された空気の大部分は熱交換器に導かれるが、一部の空気は傾斜通路に入って２次側である第１溝に流れ込んでしまう。
すなわち、一部の空気は熱交換器で熱交換しない状態のまま、傾斜通路を介して直接２次側へ行く生空気となり、熱交換効率の低下をきたす。そして、傾斜通路に導かれたドレン水の一部が、そのまま送風路の熱交換空気に乗って吹出し口から室内へ吹出される虞れがある。 According to the above-mentioned [Patent Document 1], a large amount of drain water flowing down the surface of the heat exchanger due to the heat exchanging action accumulates in the first groove of the drain tray on the leeward side under the influence of the wind pressure of the blower. This drain water is guided to the second groove on the windward side through the inclined passage provided in the convex portion, and is drained out of the main body from the drain pipe provided on the second groove side.
However, the said inclination channel | path is provided in the linear ventilation path which connects a blower outlet via a heat exchanger from a fan. Therefore, most of the air blown out from the blower is guided to the heat exchanger, but a part of the air enters the inclined passage and flows into the first groove on the secondary side.
That is, a part of the air becomes raw air that goes directly to the secondary side through the inclined passage while not exchanging heat in the heat exchanger, resulting in a decrease in heat exchange efficiency. And there is a possibility that a part of the drain water led to the inclined passage is blown into the room from the outlet through the heat exchange air in the air passage as it is.

本発明は、上記事情に着目してなされたものであり、その目的とするところは、風圧の影響でドレンパンの２次側に多く溜まるドレン水を円滑に１次側に導びいて、ドレン水の排水処理を確実になし、生空気がドレンの流通路を介して直接２次側に侵入するのを防止して、熱交換効率および空調性能の向上化を得られる空気調和装置を提供しようとするものである。   The present invention has been made paying attention to the above circumstances, and the object of the present invention is to smoothly guide drain water accumulated on the secondary side of the drain pan to the primary side smoothly by the influence of wind pressure, An air conditioner that can reliably improve the heat exchange efficiency and air conditioning performance by ensuring that wastewater is discharged and preventing raw air from directly entering the secondary side through the drain passage. To do.

上記課題を解決し目的を達成するために本発明の空気調和装置は、吸込み口および吹出し口を備えた本体と、この本体内に収容され駆動にともなって吸込み口から本体内に熱交換空気を吸込んで吹出し口から吹出す熱交換空気導通路を形成する送風機と、熱交換空気導通路に位置する熱交換器および熱交換器の下部に設けられ熱交換器を載置するドレンパンとを具備し、上記ドレンパンは、熱交換器を載置する載置部と、この載置部を挟んで両側に位置し熱交換空気導通路の風上側に設けられる１次側ドレン受け部および熱交換空気導通路の風下側に設けられる２次側ドレン受け部と、２次側ドレン受け部が受けたドレン水を載置部の両側部から一旦載置部外へ流出案内し載置部を迂回してから１次側ドレン受け部へ導くドレン流通路とを備えた。   In order to solve the above-described problems and achieve the object, an air conditioner of the present invention includes a main body having a suction port and a blow-off port, and heat exchange air accommodated in the main body and driven from the suction port into the main body as it is driven. A blower that forms a heat exchange air conduction path that sucks in and blows out from the outlet, a heat exchanger that is located in the heat exchange air conduction path, and a drain pan that is provided in the lower part of the heat exchanger and on which the heat exchanger is placed. The drain pan includes a mounting portion for mounting the heat exchanger, a primary drain receiving portion and a heat exchange air guide which are located on both sides of the mounting portion and provided on the windward side of the heat exchange air conduction path. The secondary drain receiving part provided on the leeward side of the passage and the drain water received by the secondary drain receiving part are once guided out of the mounting part from both sides of the mounting part to bypass the mounting part. With a drain flow passage leading from the pipe to the primary drain receiver It was.

本発明によれば、ドレン水の円滑な排水処理をなすとともに、ドレン水流通路を介しての生空気の侵入を防止して、熱交換効率および空調性能の向上化を図れる等の効果を奏する。   ADVANTAGE OF THE INVENTION According to this invention, while performing the drainage process of drain water smoothly, intrusion of raw air through a drain water flow path is prevented, and there exists an effect of aiming at the improvement of heat exchange efficiency and air-conditioning performance.

以下、本発明の実施の形態を図面にもとづいて説明する。
図１は本発明の一実施の形態に係るビルトインタイプの空気調和装置室内機の取付け状態を説明する図、図２は空気調和装置室内機の概略の断面図である。
筐体である本体１は、各面部全てが、金属薄板を板金加工して成形され、内面には図示しない断熱材が組み込まれて断熱構造をなしている。図１における本体１の長手方向Ｘの寸法は、長手方向Ｘとは直交する方向である、紙面の前後方向（以下、「幅方向Ｙ」と呼ぶ）と比較して小さい薄型矩形箱状に成型されている。
本体１の前後面には一対ずつの取付け具２が設けられていて、ここには天井裏Ｔに設けられる梁材３から垂設された吊持杆４が挿入され、かつ取付け固定される。本体１は梁材３と天井板５との間である、天井裏Ｔに設けられることになる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram for explaining a mounting state of a built-in type air conditioner indoor unit according to an embodiment of the present invention, and FIG. 2 is a schematic sectional view of the air conditioner indoor unit.
The main body 1 that is a casing is formed by processing all the surface portions by sheet metal processing a metal thin plate, and a heat insulating material (not shown) is incorporated on the inner surface to form a heat insulating structure. The dimension of the main body 1 in FIG. 1 in the longitudinal direction X is molded into a thin rectangular box shape that is smaller than the longitudinal direction of the paper (hereinafter referred to as “width direction Y”), which is a direction orthogonal to the longitudinal direction X. Has been.
A pair of attachments 2 are provided on the front and rear surfaces of the main body 1, and a suspension rod 4 suspended from a beam member 3 provided on the ceiling back T is inserted and fixed thereto. The main body 1 is provided on the ceiling T, which is between the beam member 3 and the ceiling board 5.

本体１内の長手方向Ｘにおける略半分の長さ位置には、仕切り板６が本体１の幅方向Ｙに亘って設けられる。本体１内部は仕切り板６によって２室７Ａ，７Ｂに区分されていて、一方室（図の右側室）を機械室７Ａと呼び、ここには送風機８が配置される。仕切り板６で区分される他方室（図の左側室）を熱交換室７Ｂと呼び、ここには熱交換器９およびドレンパン１０が配置される。
上記機械室７Ａの下面に吸込み口１１が開口され、上記熱交換室７Ｂの正面（図の左側面）には吹出し口１２が開口される。上記本体１が天井裏Ｔに取付け固定された状態で、上記吸込み口１１には吸込みダクト１３が接続され、上記吹出し口１２には複数の吹出しダクト１４が接続される。 A partition plate 6 is provided across the width direction Y of the main body 1 at approximately half the length position in the longitudinal direction X within the main body 1. The inside of the main body 1 is divided into two chambers 7A and 7B by a partition plate 6. One chamber (the right chamber in the figure) is called a machine chamber 7A, and a blower 8 is disposed here. The other chamber (the left chamber in the figure) divided by the partition plate 6 is called a heat exchange chamber 7B, in which a heat exchanger 9 and a drain pan 10 are arranged.
A suction port 11 is opened on the lower surface of the machine room 7A, and a blowout port 12 is opened on the front surface (left side surface in the figure) of the heat exchange chamber 7B. In a state where the main body 1 is attached and fixed to the ceiling T, a suction duct 13 is connected to the suction port 11, and a plurality of outlet ducts 14 are connected to the outlet 12.

上記吸込みダクト１３は、天井板５に開口する取付け用口１５に取付けられた化粧グリル１６に接続される。梁材３と天井板５との間の寸法によっては、本体１に設けられる吸込み口１１が直接、天井板５の取付け用口１５に対向する場合がある。このときは、当然、吸込みダクト１３を省略して化粧グリル１６を取付け用口１５に取付ける。
上記吹出しダクト１４は、普通、天井板５に設けられる図示しない複数の室内吹出し口に連通される。すなわち、本体１から導出される熱交換空気は吹出しダクト１４で分流され、複数の室内吹出し口から一斉に室内へ吹出されて、室内の部位に係わらず均一な空調が行えるようになっている。 The suction duct 13 is connected to a decorative grill 16 attached to an attachment port 15 that opens to the ceiling plate 5. Depending on the dimension between the beam member 3 and the ceiling plate 5, the suction port 11 provided in the main body 1 may directly face the mounting port 15 of the ceiling plate 5. In this case, naturally, the suction duct 13 is omitted and the decorative grill 16 is attached to the attachment port 15.
The blowout duct 14 is usually communicated with a plurality of indoor blowout openings (not shown) provided on the ceiling board 5. That is, the heat exchange air led out from the main body 1 is diverted by the blowout duct 14 and blown into the room from a plurality of indoor blowout openings at the same time, so that uniform air conditioning can be performed regardless of the indoor part.

上記機械室７Ａに配置される送風機８は、中央部に図示しないファンモータを備えていて、このファンモータは両側部から回転軸が突出する二軸モータである。それぞれの回転軸には、回転にともなって軸方向から空気を吸込んで周方向へ吹出すタイプのファン（いわゆる多翼型ファン）１７が連結され、さらに各ファン１７はファンケーシング１８で囲撓される。
上記ファンケーシング１８の仕切り板６側端部には吹出し口体部１８ａが形成され、上記仕切り板６に開口される連通口１９に上記吹出し口体部１８ａが接続される。したがって、上記連通口１９は、送風機８に通電しファン１７を駆動するのにともなって、ファンケーシング１８の吹出し口体部１８ａから吹出される風を直接、上記熱交換室７Ｂ側へ送風案内できる。 The blower 8 disposed in the machine room 7A is provided with a fan motor (not shown) at the center, and this fan motor is a biaxial motor whose rotating shaft projects from both sides. Each rotation shaft is connected to a fan (so-called multi-blade fan) 17 of a type that sucks air from the axial direction and blows it out in the circumferential direction as it rotates, and each fan 17 is surrounded by a fan casing 18. The
A blow-off port body 18 a is formed at the end of the fan casing 18 on the partition plate 6 side, and the blow-off port body 18 a is connected to the communication port 19 opened in the partition plate 6. Accordingly, the communication port 19 can guide the air blown from the blowout port body portion 18a of the fan casing 18 directly to the heat exchange chamber 7B as the fan 8 is energized and the fan 17 is driven. .

上記熱交換室７Ｂに配置される熱交換器９は、その両側端部に図示しない端板が配置され、この端板間に複数枚のアルミフィン９ａが所定の間隙を存して並設され、両端板およびアルミフィン９ａに複数本の伝熱管９ｂが貫通されてなるフィンチューブ型の熱交換器である。上記熱交換器９は、上記ドレンパン１０上に、上下方向が斜めに傾斜した姿勢で載置され、両端板が図示しない固定板を介して本体１に固定される。
これは、本体１が天井裏Ｔに取付けられる関係上、本体１の上下方向寸法を可能な限り短縮して薄型化を図る必要から、熱交換器９の上下方向寸法を充分な長さに設定することができない。その一方で、熱交換器９の熱交換面積を可能な限り確保して、熱交換効率の向上を図らなければならない。したがって、熱交換器９を斜めに傾斜した姿勢とすることにより、上下方向寸法を抑えて薄型の本体１内に収容可能となすとともに、充分な熱交換面積を確保することができる。 The heat exchanger 9 arranged in the heat exchange chamber 7B has end plates (not shown) arranged on both side ends thereof, and a plurality of aluminum fins 9a are arranged in parallel with a predetermined gap between the end plates. This is a fin-tube heat exchanger in which a plurality of heat transfer tubes 9b are penetrated through both end plates and aluminum fins 9a. The heat exchanger 9 is placed on the drain pan 10 in a posture in which the vertical direction is inclined obliquely, and both end plates are fixed to the main body 1 via a fixing plate (not shown).
This is because the vertical dimension of the heat exchanger 9 is set to a sufficient length because the vertical dimension of the main body 1 needs to be shortened as much as possible because the main body 1 is attached to the ceiling T. Can not do it. On the other hand, it is necessary to secure the heat exchange area of the heat exchanger 9 as much as possible to improve the heat exchange efficiency. Therefore, by adopting a posture in which the heat exchanger 9 is inclined obliquely, the vertical dimension can be suppressed and the heat exchanger 9 can be accommodated in the thin main body 1 and a sufficient heat exchange area can be secured.

上記ドレンパン１０は、たとえば発泡スチロールなどの発泡性合成樹脂材を発泡して得られる成型品であって、その上面側がアクリロニトリル・ブタジェン・スチレン樹脂（ＡＢＳ樹脂）等の合成樹脂材でコーティングされている。ドレンパン１０の長手方向Ｘと幅方向Ｙの寸法が、熱交換室７Ｂの長手方向Ｘと幅方向Ｙの寸法と略同一に形成されている。したがって、ドレンパン１０を熱交換室７Ｂに取付けた状態で、ドレンパン１０は熱交換室７Ｂの全面に亘って、ほとんど隙間のない状態で嵌め込まれる。
さらに、上記ドレンパン１０について詳述する。図３はドレンパン１０の斜視図であり、図４はドレンパン１０の平面図である。
上記ドレンパン１０は熱交換室７Ｂに嵌め込まれるところから、本体１の幅方向Ｙと比較して長手方向Ｘが極く狭い横長矩形状に形成される。このドレンパン１０の周縁全周に亘って均一な立ち上がり寸法に形成される側壁部１０ａ〜１０ｄが設けられている。すなわち、ドレンパン１０の外形を形成する側壁部１０ａ〜１０ｄは、底面から上端面までの寸法が全周に亘って均一である。 The drain pan 10 is a molded product obtained by foaming a foamable synthetic resin material such as expanded polystyrene, and the upper surface side thereof is coated with a synthetic resin material such as acrylonitrile, butadiene, styrene resin (ABS resin) or the like. The dimensions of the drain pan 10 in the longitudinal direction X and the width direction Y are substantially the same as the dimensions of the heat exchange chamber 7B in the longitudinal direction X and the width direction Y. Therefore, with the drain pan 10 attached to the heat exchange chamber 7B, the drain pan 10 is fitted over the entire surface of the heat exchange chamber 7B with almost no gap.
Further, the drain pan 10 will be described in detail. FIG. 3 is a perspective view of the drain pan 10, and FIG. 4 is a plan view of the drain pan 10.
Since the drain pan 10 is fitted in the heat exchange chamber 7B, the drain pan 10 is formed in a horizontally-long rectangular shape whose longitudinal direction X is extremely narrow compared to the width direction Y of the main body 1. Side wall portions 10 a to 10 d formed with uniform rising dimensions are provided over the entire periphery of the drain pan 10. That is, as for the side wall parts 10a-10d which form the external shape of the drain pan 10, the dimension from a bottom face to an upper end surface is uniform over a perimeter.

ドレンパン１０の側壁部１０ａ〜１０ｄ内である底面部は、載置部２０と、この載置部２０を挟んだ両側に１次側ドレン受け部２１と２次側ドレン受け部２２および、これら載置部２０と１、２次側ドレン受け部２１，２２の側部に収容部２３が形成されてなる。
なお説明すると、再び図２に示すように、上記熱交換器９を載置部２０に載置した状態で、この載置部２０を挟んで後述する熱交換空気導通路Ｒの風上側に１次側ドレン受け部２１が設けられ、熱交換空気導通路Ｒの風下側に２次側ドレン受け部２２が設けられている。上記熱交換器９は、載置部２０から２次側ドレン受け部２２側に斜めに傾斜していて、下部側の一部が１次側ドレン受け部２１側へ突出している。 The bottom surface portion in the side wall portions 10a to 10d of the drain pan 10 includes a mounting portion 20, a primary drain receiving portion 21 and a secondary drain receiving portion 22 on both sides of the mounting portion 20, and these mounting portions. An accommodation portion 23 is formed on the side portion of the placement portion 20 and the primary and secondary drain receiving portions 21 and 22.
In other words, as shown in FIG. 2 again, in a state where the heat exchanger 9 is placed on the placement portion 20, 1 is placed on the windward side of the heat exchange air conduction path R to be described later with the placement portion 20 interposed therebetween. A secondary drain receiving portion 21 is provided, and a secondary drain receiving portion 22 is provided on the leeward side of the heat exchange air conduction path R. The heat exchanger 9 is inclined obliquely from the mounting portion 20 to the secondary drain receiving portion 22 side, and a part of the lower side protrudes toward the primary drain receiving portion 21 side.

再び図３、図４に戻って、上記載置部２０は、幅方向Ｙに沿う側壁部１０ａ、１０ｂと所定間隔を存して並行に設けられ、熱交換器９の下端鈍角部を載置するのに必要最小限の幅に形成される。載置部２０の一端部ａは、収容部２３を介して左側の側壁部１０ｃと所定間隔を存して設けられ、他端部ｂは、図の右側の側壁部１０ｄと狭小の間隙を存して設けられる。載置部２０上面に沿って、ある程度の高さ寸法を有する直状の突堤となるクッション材が取付けられ、熱交換器９に対する機械的な負担を軽減した状態で熱交換器９を載置できる。
各側壁部１０ｃ、１０ｂの上端面から１次側ドレン受け部２１までの距離である、１次側ドレン受け部２１の深さ寸法は、各側壁部１０ｃ、１０ｄ上面から２次側ドレン受け部２１までの距離である、２次側ドレン受け部２２の深さ寸法よりも深く形成されている。そして、２次側ドレン受け部２２は、載置部２０側が最も深く、載置部２０と長手方向Ｘに対向して設けられる側壁部１０ａに向かって漸次浅くなる傾斜に形成される。 Returning to FIGS. 3 and 4 again, the placement unit 20 is provided in parallel with the side walls 10a and 10b along the width direction Y at a predetermined interval, and the bottom obtuse angle portion of the heat exchanger 9 is placed. It is formed to the minimum width necessary to do this. One end a of the mounting portion 20 is provided with a predetermined distance from the left side wall portion 10c via the accommodating portion 23, and the other end portion b has a narrow gap with respect to the right side wall portion 10d in the drawing. Provided. A cushion material, which is a straight jetty having a certain height, is attached along the upper surface of the mounting portion 20, and the heat exchanger 9 can be mounted in a state where the mechanical burden on the heat exchanger 9 is reduced. .
The depth dimension of the primary side drain receiving part 21 which is the distance from the upper end surface of each side wall part 10c, 10b to the primary side drain receiving part 21 is the secondary side drain receiving part from the upper surface of each side wall part 10c, 10d. It is formed deeper than the depth dimension of the secondary side drain receiving portion 22, which is a distance to 21. The secondary-side drain receiving portion 22 is formed with an inclination that is deepest on the placement portion 20 side and gradually becomes shallower toward the side wall portion 10a provided facing the placement portion 20 in the longitudinal direction X.

換言すれば、上記載置部２０は、２次側ドレン受け部２２の最も深く形成される部位に沿って設けられる。そして、２次側ドレン受け部２２の最も深い部分であっても、上記１次側ドレン受け部２１の深さ寸法よりも浅いことは上述した通りであり、載置部２０から２次側ドレン受け部２２へ１段下がった段部が形成される。
このような２次側ドレン受け部２２における幅方向Ｙの両側部には、互いに異なる形態のＡ凸部２５とＢ凸部２６が突設される。上記Ａ凸部２５は、上記載置部２０の端部ａと所定間隔を存して対向し、かつ図の左側の側壁部１０ｃと並行する部分と、上側の側壁部１０ａと並行する部分が一体に屈曲形成されて、逆Ｌ字状となっている。上記Ｂ凸部２６は、載置部２０の端部ｂと所定間隔を存して対向し、右側の側壁部１０ａに沿って直状に設けられる。 In other words, the placement portion 20 is provided along the deepest portion of the secondary drain receiving portion 22. As described above, even the deepest portion of the secondary side drain receiving portion 22 is shallower than the depth dimension of the primary side drain receiving portion 21, and the secondary side drain from the mounting portion 20. A stepped portion that is lowered by one step to the receiving portion 22 is formed.
On both side portions in the width direction Y of the secondary side drain receiving portion 22 as described above, A convex portions 25 and B convex portions 26 having different shapes are protruded. The A convex portion 25 is opposed to the end portion a of the mounting portion 20 with a predetermined interval, and has a portion parallel to the left side wall portion 10c and a portion parallel to the upper side wall portion 10a. It is bent integrally and has an inverted L shape. The B convex portion 26 is opposed to the end portion b of the mounting portion 20 with a predetermined interval, and is provided in a straight shape along the right side wall portion 10a.

Ａ，Ｂ凸部２５，２６の上端面と側壁部１０ｃ、１０ｄ上端面との間隔が全長に亘って均一に形成される一方で、上述したように２次側ドレン受け部２２において載置部２０側が最も深くなるよう傾斜しているので、Ａ，Ｂ凸部２５，２６は載置部２０側が最も高く、長手方向Ｘに対向して設けられる側壁部１０ａに向かって漸次低くなるよう形成される。
図５（Ａ）（Ｂ）はＡ凸部２５の側端部２５ａと、その近傍部位の、互いに異なる方向から見た斜視図であり、図６（Ａ）（Ｂ）はＢ凸部２６の側端部２６ａと、その近傍部位の、互いに異なる方向から見た斜視図である。 While the distance between the upper end surfaces of the A and B convex portions 25 and 26 and the upper end surfaces of the side wall portions 10c and 10d is uniformly formed over the entire length, as described above, the mounting portion in the secondary drain receiving portion 22 Since the 20 side is inclined so as to be deepest, the A and B convex portions 25 and 26 are formed so as to be gradually lower toward the side wall portion 10a provided facing the longitudinal direction X, being highest on the placement portion 20 side. The
5A and 5B are perspective views of the side end portion 25a of the A convex portion 25 and the vicinity thereof viewed from different directions. FIGS. 6A and 6B are views of the B convex portion 26. FIG. It is the perspective view seen from a mutually different direction of the side edge part 26a and its vicinity site | part.

Ａ，Ｂ凸部２５，２６の側端部２５ａ，２６ａは、載置部２０の端部ａ，ｂと所定の間隙を存して対向し、上端面から底面に向かって斜めに形成される傾斜面となっている。Ａ凸部２５の上面にはシール部材ｄが取付けられ、Ｂ凸部２６の少なくとも側端部２６ａにもシール部材ｄが取付けられる。側端部２５ａ，２６ａを形成する傾斜面の傾斜角度は、載置部２０上に載置される熱交換器９の傾斜角度と一致しており、Ａ，Ｂ凸部２５，２６の側端部２５ａ，２６ａに上記シール材ｄを介して熱交換器９が当接する。なお、熱交換器９のＹ方向長さ寸法は、Ａ，Ｂ凸部２５，２６間の間隙より大きく設けられている。
２次側ドレン受け部２２と１次側ドレン受け部２１の一側部は、Ａ凸部２５の側端部２５ａと、載置部２０の端部ａとの間に形成される隙間を介して連通する。これらの部材間に形成される隙間を、第１のドレン流通路２７と呼ぶ。また、２次側ドレン受け部２２と１次側ドレン受け部２１の他側部は、Ｂ凸部２６の側端部２６ａと、側壁部１０ａと、載置部２０の端部ｂとの間に形成される隙間を介して連通する。これらの部材間に形成される隙間を、第２のドレン流通路２８と呼ぶ。 The side end portions 25a and 26a of the A and B convex portions 25 and 26 are opposed to the end portions a and b of the mounting portion 20 with a predetermined gap, and are formed obliquely from the upper end surface toward the bottom surface. It is an inclined surface. A seal member d is attached to the upper surface of the A convex portion 25, and the seal member d is also attached to at least the side end portion 26 a of the B convex portion 26. The inclination angles of the inclined surfaces forming the side end portions 25a and 26a coincide with the inclination angle of the heat exchanger 9 placed on the placement portion 20, and the side ends of the A and B convex portions 25 and 26 are the same. The heat exchanger 9 comes into contact with the portions 25a and 26a through the sealing material d. The length of the heat exchanger 9 in the Y direction is larger than the gap between the A and B convex portions 25 and 26.
One side part of the secondary side drain receiving part 22 and the primary side drain receiving part 21 passes through a gap formed between the side end part 25a of the A convex part 25 and the end part a of the mounting part 20. Communicate. A gap formed between these members is referred to as a first drain flow passage 27. Further, the other side portion of the secondary drain receiving portion 22 and the primary side drain receiving portion 21 are located between the side end portion 26 a of the B convex portion 26, the side wall portion 10 a, and the end portion b of the mounting portion 20. It communicates through the gap formed in the. A gap formed between these members is referred to as a second drain flow passage 28.

特に図２に示すように、上記熱交換器９を載置部２０上に載置した状態で、熱交換器９がＡ凸部２５の側端部２５ａ上に当接するので、第１のドレン流通路２７の上方空間が熱交換器９で塞がれてトンネル状となっている。また、熱交換器９はＢ凸部２６の傾斜面２６ａ上に当接するので、第２のドレン流通路２８の上方空間も熱交換器９で塞がれてトンネル状となっている。
ただし、載置部２０の端部ａとＡ凸部２５の側端部２５ａとは略同一線上にあり、第１のドレン流通路２７はＹ方向に直状のトンネルとなる。載置部２０の端部ｂはＢ凸部２６の側面および側壁部１０ｄ内面から離間した位置にあり、第２のドレン流通路２８は平面視で鍵状（Ｌ字状）のトンネルとなる。 In particular, as shown in FIG. 2, the heat exchanger 9 abuts on the side end portion 25 a of the A convex portion 25 in a state where the heat exchanger 9 is placed on the placement portion 20. The upper space of the flow passage 27 is closed by the heat exchanger 9 to form a tunnel shape. Further, since the heat exchanger 9 abuts on the inclined surface 26 a of the B convex portion 26, the space above the second drain flow passage 28 is also closed by the heat exchanger 9 to form a tunnel shape.
However, the end portion a of the mounting portion 20 and the side end portion 25a of the A convex portion 25 are substantially on the same line, and the first drain flow passage 27 becomes a straight tunnel in the Y direction. The end portion b of the mounting portion 20 is located at a position separated from the side surface of the B convex portion 26 and the inner surface of the side wall portion 10d, and the second drain flow passage 28 becomes a key-shaped (L-shaped) tunnel in plan view.

上記Ａ凸部２５と左側壁部１０ｃとで囲まれる上記収容部２３は、図示しないドレンポンプや、膨張弁および配管類を収容する。これら部品を収容部２３に収容した状態で、同じく図示しない左側固定板によって囲まれる。すなわち、上記左側固定板は平面視で逆Ｌ字状の板金で、Ａ凸部２５の上端面から本体１の天井面内側までの高さ寸法を有し、本体１の左側板と熱交換器９の端板とに固定される。
左側固定板の熱交換器９側端面は、熱交換器９の傾斜姿勢に対応する傾斜面をなしている。ドレンパン１０を本体１に取付けることにより、Ａ凸部２５の上端面と左側固定板の下端面とがシール部材ｄを介して当接する。この左側固定板により収容部２３空間と熱交換室７Ｂの２次側空間とは区画される。 The accommodating portion 23 surrounded by the A convex portion 25 and the left side wall portion 10c accommodates a drain pump, an expansion valve, and piping not shown. In a state where these components are accommodated in the accommodating portion 23, they are surrounded by a left-side fixing plate (not shown). That is, the left-side fixing plate is an inverted L-shaped metal plate in plan view, and has a height dimension from the upper end surface of the A convex portion 25 to the inside of the ceiling surface of the main body 1. 9 is fixed to the end plate.
The end surface on the heat exchanger 9 side of the left fixed plate forms an inclined surface corresponding to the inclined posture of the heat exchanger 9. By attaching the drain pan 10 to the main body 1, the upper end surface of the A convex portion 25 and the lower end surface of the left fixed plate abut via the seal member d. The left fixing plate separates the accommodation portion 23 space and the secondary space of the heat exchange chamber 7B.

また、熱交換器９の右側端板は、図示しない右側固定板を介して本体１に固定される。上述の左側固定板、右側固定板および熱交換器９により熱交換室７Ｂの１次側空間と２次側空間とは区画され、これら空間は熱交換器９のアルミフィン９ａ間の間隙と第１、第２のドレン流通路２７，２８とを介して連通するようになっている。
第１、第２のドレン流通路２７，２８の近傍で、１次側ドレン受け部２１の幅方向Ｙと対向する側壁部１０ｃ，１０ｄのそれぞれには、排水口２９が設けられている。各排水口２９には、図示しないドレンホースを接続するための接続用口体３０が、側壁部１０ａから外方へ向かって突設される。すなわち、１次側ドレン受け部２１に溜まるドレン水は、左右の排水口２９から接続用口体３０とドレンホースを介して排出されるようになっている。 The right end plate of the heat exchanger 9 is fixed to the main body 1 via a right fixing plate (not shown). The primary side space and the secondary side space of the heat exchange chamber 7B are partitioned by the left side fixing plate, the right side fixing plate, and the heat exchanger 9, and these spaces are separated from the gaps between the aluminum fins 9a of the heat exchanger 9 and the second space. The first and second drain flow passages 27 and 28 communicate with each other.
In the vicinity of the first and second drain flow passages 27, 28, drainage ports 29 are provided in the side wall portions 10 c, 10 d facing the width direction Y of the primary drain receiving portion 21. Each drain port 29 is provided with a connection port 30 for connecting a drain hose (not shown) projecting outward from the side wall 10a. That is, the drain water collected in the primary side drain receiving portion 21 is discharged from the left and right drain ports 29 via the connection port body 30 and the drain hose.

実際には、本体１を天井裏Ｔの所定の部位に取付けたあと、テストとして１次側ドレン受け部２１に水を落し、ドレンホースを接続する側に水が流れるように本体１の取付け姿勢を調整する。場合によっては、水がより多く流れる側の接続用口体３０にドレンホースを接続し、少ない側の接続用口体３０は栓体で塞ぐ。
このように構成された空気調和装置の室内機であり、冷凍サイクル運転とともに送風機８が駆動されると、室内空気が化粧グリル１６と吸込み口１１を介して本体１内に形成される熱交換空気導通路Ｒに沿って導かれる。具体的には、熱交換空気は吸込み口１１から機械室７Ａに吸込まれ、送風機８を構成するファンケーシング１８と、仕切り板６に設けられる連通口１９を介して熱交換室７Ｂに導かれる。 Actually, after the main body 1 is attached to a predetermined part of the ceiling T, the main body 1 is mounted in such a manner that water is dropped on the primary drain receiving portion 21 as a test and the water flows to the side where the drain hose is connected. Adjust. In some cases, a drain hose is connected to the connection port 30 on the side where more water flows, and the connection port 30 on the smaller side is closed with a plug.
This is an indoor unit of an air conditioner configured as described above, and when the blower 8 is driven together with the refrigeration cycle operation, the indoor air is formed in the main body 1 through the decorative grill 16 and the suction port 11. It is guided along the conduction path R. Specifically, the heat exchange air is sucked into the machine room 7 </ b> A from the suction port 11, and is guided to the heat exchange chamber 7 </ b> B through the fan casing 18 constituting the blower 8 and the communication port 19 provided in the partition plate 6.

熱交換空気は、ドレンパン１０に載置される熱交換器９に向かって吹出され、幅方向Ｙ全長に亘って流通して熱交換器９に導かれる冷媒と熱交換される。熱交換器９と熱交換したあとの熱交換空気は、吹出し口１２に導かれダクト１４を介して室内へ吹出されて、室内の熱交換作用をなす。
なお、ドレンパン１０に対する熱交換空気の流れをみると、はじめに１次側ドレン受け部２１を通過してから載置部２０に到達し、さらに載置部２０から２次側ドレン受け部２２を通過して吹出し口１２へ吹出される。したがって、熱交換空気導通路Ｒが、風上側である１次側ドレン受け部２１−載置部２０−風下側である２次側ドレン受け部２２の順に形成されることになる。 The heat exchange air is blown toward the heat exchanger 9 placed on the drain pan 10, and is heat-exchanged with the refrigerant that flows through the entire length in the width direction Y and is led to the heat exchanger 9. The heat exchange air after heat exchange with the heat exchanger 9 is guided to the blowout port 12 and blown out into the room through the duct 14, thereby performing the heat exchange action in the room.
In addition, when the flow of heat exchange air with respect to the drain pan 10 is seen, it first passes through the primary side drain receiving part 21 and then reaches the mounting part 20, and further passes from the mounting part 20 through the secondary side drain receiving part 22. Then, it is blown out to the outlet 12. Therefore, the heat exchange air conduction path R is formed in the order of the primary side drain receiving portion 21 that is on the leeward side, the mounting portion 20, and the secondary side drain receiving portion 22 that is on the leeward side.

冷房運転時には、熱交換器９の熱交換作用にともなってドレン水が生成され、ドレンパン１０に滴下する。その一方で、送風機８が駆動され、熱交換空気導通路Ｒに沿って熱交換空気が送風される。
通常、熱交換器９で生成されたドレン水は、熱交換器９を伝って１次側ドレン受け部２１に滴下するが、ドレンパン１０に載置される熱交換器９は、上述したようにほとんど大部分が２次側ドレン受け部２２に対向するよう傾斜し、１次側ドレン受け部２１が風上側に設けられ、２次側ドレン受け部２２が風下側に設けられるところから、風量が大きかったりドレン水の発生量が多いと、１次側ドレン受け部２１に滴下するドレン水よりも２次側ドレン受け部２２に滴下するドレン水の量が多くなる。 During the cooling operation, drain water is generated along with the heat exchange action of the heat exchanger 9 and dripped onto the drain pan 10. On the other hand, the blower 8 is driven, and the heat exchange air is blown along the heat exchange air conduction path R.
Normally, the drain water generated by the heat exchanger 9 is dripped to the primary side drain receiving part 21 through the heat exchanger 9, but the heat exchanger 9 placed on the drain pan 10 is as described above. Almost the most part is inclined so as to face the secondary side drain receiving part 22, the primary side drain receiving part 21 is provided on the leeward side, and the secondary side drain receiving part 22 is provided on the leeward side. If it is large or the amount of generated drain water is large, the amount of drain water dripping onto the secondary drain receiving portion 22 is larger than the drain water dripping onto the primary drain receiving portion 21.

１次側ドレン受け部２１に滴下したドレン水は、ドレンパン１０の排水口２９から接続用口体３０とドレンホースを介して外部に排出される。２次側ドレン受け部２２に滴下したドレン水は、傾斜下端に設けられる載置部２０方向へ向かって流れるが、この載置部２０はある程度高さのある突堤であり、２次側ドレン受け部２２の幅方向Ｙ長さと略同一長さに設けられているから、一旦、載置部２０でせき止められる。
上記載置部２０でせき止められたドレン水は、載置部２０の左右両側端に設けられる第１のドレン流通路２７もしくは第２のドレン流通路２８に向って流れ、それぞれの流通路２７，２８を通過する。いずれの流通路２７，２８も、載置部２０の左右両端部ａ，ｂに沿って形成されるので、ドレン水は載置部２０から一旦、外部へ流出案内される。 The drain water dropped on the primary side drain receiving portion 21 is discharged to the outside from the drain port 29 of the drain pan 10 through the connection port 30 and the drain hose. The drain water dripped onto the secondary side drain receiving part 22 flows toward the mounting part 20 provided at the lower end of the slope, but this mounting part 20 is a jetty with a certain height, and the secondary side drain receiving part. Since the length of the portion 22 is substantially the same as the length Y in the width direction, the portion 22 is temporarily blocked by the placement portion 20.
The drain water blocked by the placement unit 20 flows toward the first drain flow passage 27 or the second drain flow passage 28 provided at the left and right side ends of the placement unit 20, Pass 28. Since both the flow passages 27 and 28 are formed along the left and right end portions a and b of the placement portion 20, the drain water is once guided outflow from the placement portion 20 to the outside.

ただし、第１、第２のドレン流通路２７，２８は１次側ドレン受け部２１に連通しているから、ドレン水は載置部２０の両端部ａ，ｂを迂回して１次側ドレン受け部２１に流入する。このように、２次側ドレン受け部２２に滴下したドレン水は、第１のドレン流通路２７および第２のドレン流通路２８を介して１次側ドレン受け部２１に集溜され、ここから排水口２９とドレンホースを介して外部へ排出される。
上記熱交換器９の取付け姿勢および送風機８の送風作用にともなう風圧の影響で、２次側ドレン受け部２２に多くのドレン水が滴下するが、本発明においては２次側ドレン受け部２２と１次側ドレン受け部２１とを連通する第１、第２のドレン流通路２７，２８を設けている。これら第１、第２のドレン流通路２７，２８は、載置部２０の両側端部ａ，ｂから一旦、載置部２０外へドレン水を流出案内し、載置部２０を迂回してから１次側ドレン受け部２１に導くので、ドレン水を円滑に、かつ確実に排水できる。 However, since the first and second drain flow passages 27 and 28 communicate with the primary drain receiving portion 21, the drain water bypasses both end portions a and b of the placement portion 20 and the primary drain. It flows into the receiving part 21. In this way, the drain water dripped onto the secondary side drain receiving part 22 is collected in the primary side drain receiving part 21 via the first drain flow path 27 and the second drain flow path 28, and from here It is discharged to the outside through the drain port 29 and the drain hose.
Although a large amount of drain water is dripped into the secondary drain receiving portion 22 due to the mounting posture of the heat exchanger 9 and the influence of the wind pressure due to the blowing action of the blower 8, in the present invention, the secondary drain receiving portion 22 and First and second drain flow passages 27 and 28 communicating with the primary side drain receiving portion 21 are provided. The first and second drain flow passages 27 and 28 guide the drain water out of the mounting portion 20 from both side ends a and b of the mounting portion 20 and bypass the mounting portion 20. Therefore, the drain water can be drained smoothly and surely.

一方、第１のドレン流通路２７は、載置部２０の風下側である２次側ドレン受け部２２にＡ凸部２５とともに形成され、幅方向Ｙに沿う直状トンネルであって、送風作用にともなって形成される熱交換空気導通路Ｒとは直交する方向である。したがって、第１のドレン流通路２７には熱交換空気導通路Ｒに沿って送風される熱交換空気が通り抜けし難い。第１のドレン流通路２７を流通するドレン水は送風の影響を受け難くく、ドレン水は第１のドレン流通路２７を円滑に流れる。
また、第２のドレン流通路２８は、載置部２０の風下側である２次側ドレン受け部２２にＢ凸部２６とともに形成され、載置部２０の端部ｂに沿って鍵状（Ｌ字状）に設けられるトンネルであるから、熱交換空気導通路Ｒに沿って導かれる熱交換空気が通り抜けし難い。 On the other hand, the first drain flow passage 27 is a straight tunnel that is formed along with the A convex portion 25 in the secondary drain receiving portion 22 that is the leeward side of the mounting portion 20, and that is along the width direction Y, and has a blowing action. The direction is perpendicular to the heat exchange air conduction path R formed along with this. Therefore, the heat exchange air blown along the heat exchange air conduction path R does not easily pass through the first drain flow passage 27. The drain water flowing through the first drain flow passage 27 is not easily affected by the air flow, and the drain water flows smoothly through the first drain flow passage 27.
Further, the second drain flow passage 28 is formed in the secondary drain receiving portion 22 which is the leeward side of the placement portion 20 together with the B convex portion 26, and is formed in a key shape along the end b of the placement portion 20 ( Since it is a tunnel provided in an L shape, the heat exchange air guided along the heat exchange air conduction path R is difficult to pass through.

なお説明すると、第２のドレン流通路２７の風上側はドレンパン１０の側端部に形成される側壁部１０ａに沿って開口しているので、送風機８の送風作用による熱交換空気が導びかれ難い位置にある。たとえ１次側ドレン受け部２１から第２のドレン流通路２８に熱交換空気が侵入しても、侵入方向に対向してＢ凸部２６の側端部２６ａが存在しているので、熱交換空気はここにに当たって、侵入直後で侵入を遮られる。
第２のドレン流通路２８は、さらに直角に曲り載置部２０の端部ｂに沿って鍵状に形成されていて、Ｂ凸部２６の側端部２６ａに進行を妨げられた熱交換空気が、直角方向に曲って奥方へ侵入することはほとんどない。すなわち、第２のドレン流通路２８を流通するドレン水も送風の影響を受け難くく、ドレン水は第２のドレン流通路２８を円滑に流れる。 In other words, since the windward side of the second drain flow passage 27 is opened along the side wall portion 10a formed at the side end portion of the drain pan 10, heat exchange air by the blowing action of the blower 8 is guided. In a difficult position. Even if heat exchange air enters the second drain flow passage 28 from the primary side drain receiving portion 21, the side end portion 26a of the B convex portion 26 exists in the opposite direction, so that heat exchange is performed. The air hits here and is blocked immediately after the intrusion.
The second drain flow passage 28 is bent at a right angle and is formed in a key shape along the end b of the mounting portion 20, and the heat exchange air is prevented from advancing by the side end 26 a of the B convex portion 26. However, it is rare to bend in the right-angled direction and penetrate into the back. That is, the drain water flowing through the second drain flow passage 28 is not easily affected by the air flow, and the drain water flows smoothly through the second drain flow passage 28.

このようにして第１、第２のドレン流通路２７，２８を構成したから、１次側ドレン受け部２１から各ドレン流通路２７，２８を介して２次側ドレン受け部２２へ吹き抜ける熱交換空気はほとんどない。換言すれば、熱交換器９を流通しない生空気が第１、第２のドレン流通路２７，２８を介して直接、２次側ドレン受け部２２へ通り抜けることがなく、熱交換効率の向上が得られる。
そして、２次側ドレン受け部２２から熱交換空気に乗って吹出し口１２と吹出しダクト１４へ導かれるドレン水の飛沫もなく、結局、室内へ導かれるドレン飛沫がなくなって、快適空調が得られる。 Since the first and second drain flow passages 27 and 28 are configured in this way, heat exchange is performed by blowing from the primary drain receiving portion 21 to the secondary drain receiving portion 22 via the drain flow passages 27 and 28. There is little air. In other words, the raw air that does not flow through the heat exchanger 9 does not directly pass through the first and second drain flow passages 27 and 28 to the secondary drain receiving portion 22, thereby improving the heat exchange efficiency. can get.
Then, there is no splash of drain water that rides on the heat exchange air from the secondary drain receiving portion 22 and is led to the blowout port 12 and the blowout duct 14, and eventually there is no drain splash introduced into the room, and comfortable air conditioning is obtained. .

なお、第１のドレン流通路２７は直状に形成され、第２のドレン流通路２８は鍵状に形成されているが、これに限定されるものではなく、要は、２次側ドレン受け部２２が受けたドレン水を載置部２０の両側部から一旦、載置部２０外へ流出案内し、載置部２０を迂回してから１次側ドレン受け部２１へ円滑に導き、かつ熱交換空気の導通路Ｒに沿わない構成であればよい。
また、本発明は上述した実施の形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化できる。そして、上述した実施の形態に開示されている複数の構成要素の適宜な組み合わせにより種々の発明を形成できる。 Although the first drain flow passage 27 is formed in a straight shape and the second drain flow passage 28 is formed in a key shape, the present invention is not limited to this. The drain water received by the section 22 is once guided outflowing from the both sides of the mounting section 20 to the outside of the mounting section 20, and is smoothly guided to the primary drain receiving section 21 after bypassing the mounting section 20, and Any configuration that does not follow the conduction path R of the heat exchange air may be used.
Further, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments.

本発明の一実施の形態に係る、空気調和装置室内機の取付け状態を説明する図。The figure explaining the attachment state of the air conditioner indoor unit based on one embodiment of this invention. 同実施の形態に係る、空気調和装置室内機の概略の断面図。Sectional drawing of the outline of the air conditioner indoor unit based on the embodiment. 同実施の形態に係る、ドレンパンの斜視図。The perspective view of the drain pan based on the embodiment. 同実施の形態に係る、ドレンパンの平面図。The top view of the drain pan based on the embodiment. 同実施の形態に係る、ドレンパンにおける第１のドレン流通路を説明する、互いに異なる方向から見た斜視図。The perspective view seen from a mutually different direction explaining the 1st drain flow path in the drain pan based on the embodiment. 同実施の形態に係る、ドレンパンにおける第２のドレン流通路を説明する、互いに異なる方向から見た斜視図。The perspective view seen from a mutually different direction explaining the 2nd drain flow path in the drain pan based on the embodiment.

符号の説明Explanation of symbols

１１…吸込み口、１２…吹出し口、１…本体、Ｒ…熱交換空気導通路、８…送風機、９…熱交換器、１０…ドレンパン、２０…載置部、２１…１次側ドレン受け部、２２…２次側ドレン受け部、２７…第１のドレン流通路、２８…第２のドレン流通路、２５…Ａ凸部、２６…Ｂ凸部。   DESCRIPTION OF SYMBOLS 11 ... Suction inlet, 12 ... Outlet, 1 ... Main body, R ... Heat exchange air conduction path, 8 ... Blower, 9 ... Heat exchanger, 10 ... Drain pan, 20 ... Mounting part, 21 ... Primary side drain receiving part , 22 ... secondary drain receiving portion, 27 ... first drain flow passage, 28 ... second drain flow passage, 25 ... A convex portion, 26 ... B convex portion.

Claims (2)

吸込み口および吹出し口を備えた本体と、
この本体内に収容され、駆動にともなって上記吸込み口から本体内に熱交換空気を吸込んで上記吹出し口から吹出す熱交換空気導通路を形成する送風機と、上記熱交換空気導通路に位置する熱交換器および、上記熱交換器の下部に設けられ熱交換器を載置するドレンパンとを具備し、
上記ドレンパンは、上記熱交換器を載置する載置部と、この載置部を挟んで両側に位置し上記熱交換空気導通路の風上側に設けられる１次側ドレン受け部および熱交換空気導通路の風下側に設けられる２次側ドレン受け部と、上記２次側ドレン受け部が受けたドレン水を上記載置部の両側部から一旦、載置部外へ流出案内し、載置部を迂回してから上記１次側ドレン受け部へ導くドレン流通路とを備えたことを特徴とする空気調和装置。 A main body with a suction port and a blowout port;
A blower that is housed in the main body and forms a heat exchange air conduction path that sucks heat exchange air into the main body from the suction opening and blows out from the blowout opening as it is driven, and is located in the heat exchange air conduction path A heat exchanger, and a drain pan provided on the lower part of the heat exchanger and mounting the heat exchanger,
The drain pan is provided with a placement portion on which the heat exchanger is placed, a primary drain receiving portion and heat exchange air that are located on both sides of the placement portion and provided on the windward side of the heat exchange air passage. A secondary drain receiving portion provided on the leeward side of the conduction path and drain water received by the secondary drain receiving portion are once guided outflowing from both sides of the mounting portion to the outside of the mounting portion. An air conditioner comprising: a drain flow passage that bypasses the part and guides to the primary drain receiving part. 上記ドレンパンは、上記２次側ドレン受け部の両側部に凸部を備え、これら凸部と上記載置部両側部および上記熱交換器両側部との間隙に、上記ドレン流通路が形成されることを特徴とする請求項１記載の空気調和装置。   The drain pan is provided with convex portions on both sides of the secondary drain receiving portion, and the drain flow passage is formed in a gap between the convex portions and both the placement portion side portions and the heat exchanger side portions. The air conditioner according to claim 1.
JP2005162717A 2005-06-02 2005-06-02 Air conditioner Active JP4585377B2 (en)

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KR101319770B1 (en) 2010-06-30 2013-10-17 산요덴키가부시키가이샤 Built-in type air conditioning device
WO2014091803A1 (en) * 2012-12-13 2014-06-19 三菱電機株式会社 Indoor unit of air conditioner
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WO2017056190A1 (en) * 2015-09-29 2017-04-06 三菱電機株式会社 Indoor unit and air conditioner
CN107726591A (en) * 2017-10-31 2018-02-23 珠海格力电器股份有限公司 Air-conditioning between a kind of water pan component and row
JP2020051641A (en) * 2018-09-25 2020-04-02 日立ジョンソンコントロールズ空調株式会社 Indoor unit for air conditioner

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KR100735210B1 (en) 2007-07-03
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KR20060125577A (en) 2006-12-06
CN100472145C (en) 2009-03-25

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