JP5557110B2 - Duct type air conditioner indoor unit - Google Patents

Duct type air conditioner indoor unit Download PDF

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JP5557110B2
JP5557110B2 JP2010276928A JP2010276928A JP5557110B2 JP 5557110 B2 JP5557110 B2 JP 5557110B2 JP 2010276928 A JP2010276928 A JP 2010276928A JP 2010276928 A JP2010276928 A JP 2010276928A JP 5557110 B2 JP5557110 B2 JP 5557110B2
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plate
electrical component
chamber
indoor unit
component chamber
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JP2012127533A (en
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孝徳 石井
大貴 澤田
壮彦 中本
彰 菅野
信幸 森
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Fujitsu General Ltd
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Description

本発明は、電装品室の冷却構造について改良を図ったダクト型空気調和機の室内機に関する。   The present invention relates to an indoor unit of a duct-type air conditioner that is improved with respect to a cooling structure of an electrical component room.

従来のダクト型空気調和機の室内機として、天井裏に設置し、室内機本体内に送風ファンを備え、室内機本体内または外に電装品室を備え、電装品室内の発熱部品により発生した熱を冷却するため、天井裏の空気を電装品室に設けた吸込口から送風ファンによって吸引し、冷却するものがある。しかしながら、天井裏の雰囲気温度は最高で60℃程度になるので、電装品室内を十分に冷却することができない。この問題を解決するものとして、図12に示すように、室内機本体200の筐体210の内部に送風ファン220と熱交換器230を配置し、側面板211における送風ファン220の吸込口近傍に開口211aを設けておき、電装品室240の基板背面に通気孔(図示せず)を設けた突出部241を、その開口211aに合わせることで、その通気孔から突出部241内を通り抜ける室内機本体内で熱交換された空気により、電装品室240内の電装品を冷却するようにしたものがある(特許文献1)。   As an indoor unit of a conventional duct type air conditioner, it is installed behind the ceiling, is equipped with a blower fan inside the indoor unit body, is equipped with an electrical component room inside or outside the indoor unit body, and is generated by heat-generating parts inside the electrical component room In order to cool the heat, there is a type in which air behind the ceiling is sucked and cooled by a blower fan from a suction port provided in the electrical component room. However, since the atmospheric temperature behind the ceiling is about 60 ° C. at the maximum, the interior of the electrical component room cannot be sufficiently cooled. As a solution to this problem, as shown in FIG. 12, the blower fan 220 and the heat exchanger 230 are arranged inside the casing 210 of the indoor unit main body 200, and in the vicinity of the suction port of the blower fan 220 in the side plate 211. An indoor unit that has an opening 211a and passes through the protruding portion 241 from the ventilation hole 211a by aligning the protruding portion 241 provided with a ventilation hole (not shown) on the back of the substrate of the electrical component chamber 240 with the opening 211a. There is one in which the electrical components in the electrical component chamber 240 are cooled by air subjected to heat exchange in the body (Patent Document 1).

また、図13に示すように、送風装置310と熱交換器320を備えた室内機本体300の吸込口301の側に外気導入ユニット400を設けて、この外気導入ユニット400の室内空気吸込口401から室内空気を吸い込む他に、換気のために外気吸込口402から室内機本体300の外側の外気を吸い込み、全体の吸い込み量を調整するため、室内空気の吸い込み側に吸い込み量を調整する調整装置を設け、吸込空気の不足分を外気によって補うものが知られている(特許文献2)。   Further, as shown in FIG. 13, an outdoor air introduction unit 400 is provided on the side of the intake port 301 of the indoor unit main body 300 including the blower 310 and the heat exchanger 320, and the indoor air intake port 401 of the outdoor air introduction unit 400 is provided. In addition to sucking in indoor air from the outside, an adjustment device for sucking in outside air outside the indoor unit main body 300 from the outside air inlet 402 for ventilation and adjusting the amount of suction to the room air suction side in order to adjust the whole amount of suction Is provided to compensate for the shortage of intake air with outside air (Patent Document 2).

特開2009−030829号公報JP 2009-030829 A 特開2006−207955号公報JP 2006-207955 A

ところが、特許文献1では、電装品室240の基板の一部の背面だけを空気が通過することになり、電装品室240内に配置された発熱部品であるリアクタやコンデンサ等で発生した熱を冷却するには十分ではない。ここで特許文献1の従来技術である電装品室240に吸込口を設けて天井裏からの空気を吸い込むことが考えられるが、その場合は、電装品室240内に空気通路ができ発熱部品から発生した熱を冷却することはできるものの、先に説明したように天井裏は最高で60℃程度になるので、このような空気を吸い込んでも電装品室240内を十分に冷却はできない。また、特許文献1では、電装品室240の基板の一部が送風通路に開放されることになるため、熱交換器で発生した水分が電装品室240内に入る可能性があり、回路のショートや部品の損傷につながる恐れがある。   However, in Patent Document 1, air passes only through the back of a part of the substrate of the electrical component chamber 240, and heat generated in a reactor, a capacitor, or the like, which is a heat generating component arranged in the electrical component chamber 240. Not enough for cooling. Here, it is conceivable to provide a suction port in the electrical component room 240, which is the prior art of Patent Document 1, to suck air from the back of the ceiling. Although the generated heat can be cooled, as described above, the ceiling is at a maximum of about 60 ° C. Therefore, even if such air is sucked, the interior of the electrical component chamber 240 cannot be sufficiently cooled. Moreover, in patent document 1, since a part of board | substrate of the electrical component room 240 will be open | released by the ventilation path, the water | moisture content generated with the heat exchanger may enter in the electrical component room 240, and a circuit of There is a risk of short circuit and damage to parts.

また、特許文献2では、外気を取り込んで換気するものであり、電装品を効果的に冷却することはできない。   Moreover, in patent document 2, it takes in external air and ventilates and cannot cool an electrical component effectively.

本発明の目的は、電装品を容易に十分冷却でき、また、電装品室内に水分が入らないようにしたダクト型空気調和機の室内機を提供することである。   An object of the present invention is to provide an indoor unit of a duct type air conditioner that can easily and sufficiently cool an electrical component and prevent moisture from entering the electrical component chamber.

上記目的を達成するために、請求項1にかかる発明は、少なくとも、吹出口を有する前面板と、吸込口を有する背面板と、底面板を兼ねるセーフティドレンパンと、全体の上面を覆う天板と、前記前面板の片端と前記背面板の片端を接続する側面板とで筐体を構成し、前記前面板の裏面に送風装置を固定し、前記背面側の裏面に熱交換器を配置して、室内機本体を構成したダクト型空気調和機の室内機において、前記筐体内を左右に区画する仕切板を設け、前記仕切板の片端を前記前面板の裏面に固定し、前記熱交換器の配管出口側に前記熱交換器を縦姿勢に保持するための熱交側板を配置し、該熱交側板の一端を前記背面板に固定し、前記熱交側板の他端と前記仕切板の他端を相互に固定し、前記熱交側板と前記仕切板を一列に立設して区画壁とし、前記区画壁で区画された一側に前記送風装置および前記熱交換器を配置する送風室を形成し、前記区画壁で区画された他側に電装品室と配管室を形成し、前記配管室に前記吸込口に通じる開口を形成し、前記吸込口に吸い込まれる空気の一部を前記開口から前記配管室を経由して前記電装品室に導きさらに該電装品室から前記送風室に導く空気通路を形成したことを特徴とする。
請求項2にかかる発明は、請求項1に記載のダクト型空気調和機において、前記吸込口は、前記熱交側板により一方が送風室吸込口となり、他方が前記開口となるように区画したことを特徴とする。
請求項3にかかる発明は、請求項1または2に記載のダクト型空気調和機の室内機において、前記電装品室を、前記仕切板に並行配置された電装品室側板と、該電装品室側板に対してL字形状に曲折して連続する電装品室背面板と、前記セーフティドレンパンに対して上げ底形状に配置された電装品室底面板と、前記電装品室を外部に対して閉じる電装品室蓋と、前記天板の一部と、前記前面板の一部とで閉じられる空間として構成し、且つ、前記電装品室底面板と前記前面板の一部との間に第1の隙間を形成し、前記配管室と前記電装品室底面板の底面との間に第2の隙間を形成し、前記電装品室側板と前記仕切板に相互に連通する通孔をそれぞれ形成し、前記空気通路が、前記配管室の前記開口、前記配管室の内部、前記第2の隙間、前記電装品室底面板の下面、前記第1の隙間、前記電装品室の内部、前記それぞれの通孔を順次経由する通路であることを特徴とする。
請求項4にかかる発明は、請求項1、2又は3に記載のダクト型空気調和機の室内機において、前記電装品室の前記通孔の近傍に、少なくともリアクタとコンデンサを配置したことを特徴とする。
To achieve the above object, the invention according to claim 1 includes at least a front plate having an air outlet, a back plate having a suction port, a safety drain pan also serving as a bottom plate, and a top plate covering the entire top surface. A casing is composed of one end of the front plate and a side plate connecting one end of the back plate, a blower is fixed to the back surface of the front plate, and a heat exchanger is disposed on the back surface on the back side. In the indoor unit of the duct type air conditioner constituting the indoor unit main body, a partition plate that divides the inside of the housing into right and left is provided, one end of the partition plate is fixed to the back surface of the front plate, and the heat exchanger A heat exchange side plate for holding the heat exchanger in a vertical posture is disposed on the pipe outlet side, one end of the heat exchange side plate is fixed to the back plate, the other end of the heat exchange side plate and the other of the partition plate The ends are fixed to each other, and the heat exchange side plate and the partition plate are erected in a row. Forming a blower chamber in which the blower and the heat exchanger are arranged on one side partitioned by the partition wall, and forming an electrical component chamber and a piping chamber on the other side partitioned by the partition wall; An opening communicating with the suction port is formed in the piping chamber, a part of the air sucked into the suction port is led from the opening to the electrical component chamber via the piping chamber, and further from the electrical component chamber to the blower chamber An air passage leading to is formed.
According to a second aspect of the present invention, in the duct type air conditioner according to the first aspect, the suction port is partitioned by the heat exchange side plate so that one is a blower chamber suction port and the other is the opening. It is characterized by.
The invention according to claim 3 is the indoor unit of the duct-type air conditioner according to claim 1 or 2, wherein the electrical component room includes an electrical component room side plate arranged in parallel with the partition plate, and the electrical component room. An electrical component room rear plate that is bent in an L shape with respect to the side plate and is continuous, an electrical component chamber bottom plate disposed in a raised bottom shape with respect to the safety drain pan, and an electrical component that closes the electrical component chamber to the outside A space that is closed by a product compartment lid, a part of the top plate, and a part of the front plate, and a first space between the bottom plate of the electrical component compartment and a part of the front plate. Forming a gap, forming a second gap between the piping chamber and the bottom surface of the electrical component chamber bottom plate, and forming a through hole communicating with the electrical component chamber side plate and the partition plate, The air passage includes the opening of the piping chamber, the inside of the piping chamber, the second gap, and the front The lower surface of the electric component chamber bottom plate, said first gap, the inside of the electric component chamber, characterized in that the a passage through the respective through holes successively.
The invention according to claim 4 is the indoor unit of the duct type air conditioner according to claim 1, 2, or 3, wherein at least a reactor and a capacitor are arranged in the vicinity of the through hole of the electrical component room. And

本発明によれば、吸込口から吸い込まれた空気の一部が、配管室の開口から電装品室に取り込まれ、送風室に吸引されるようにしたので、電装品室内に存在する発熱部品が効果的に冷却される。また、送風経路によって電装品室に水分が入ることを防止することもできる。   According to the present invention, a part of the air sucked from the suction port is taken into the electrical component chamber from the opening of the piping chamber and sucked into the blower chamber. Effectively cooled. Further, it is possible to prevent moisture from entering the electrical component chamber through the air blowing path.

本実施例のダクト型空気調和機の室内機の配置の側面図である。It is a side view of arrangement | positioning of the indoor unit of the duct type air conditioner of a present Example. 本実施例のダクト型空気調和機の室内機の室内機本体の斜視図である。It is a perspective view of the indoor unit main body of the indoor unit of the duct type air conditioner of a present Example. 本実施例のダクト型空気調和機の室内機の室内機本体の天板を取り外した状態の平面図である。It is a top view of the state which removed the top plate of the indoor unit main body of the indoor unit of the duct type air conditioner of a present Example. 図3のA−A線の断面図である。It is sectional drawing of the AA line of FIG. 本実施例のダクト型空気調和機の室内機の室内機本体の送風装置の組立の説明図である。It is explanatory drawing of the assembly of the air blower of the indoor unit main body of the indoor unit of the duct type air conditioner of a present Example. 本実施例のダクト型空気調和機の室内機の室内機本体の天板を取り外した状態の電装品室と配管室の近傍の部分斜視図である。It is a fragmentary perspective view of the vicinity of the electrical component room and piping room of the state which removed the top plate of the indoor unit main body of the indoor unit of the duct type air conditioner of a present Example. 本実施例のダクト型空気調和機の室内機の室内機本体の天板を取り外した状態の電装品室と配管室の部分平面図である。It is a partial top view of the electrical component room and piping room of the state which removed the top plate of the indoor unit main body of the indoor unit of the duct type air conditioner of a present Example. 本実施例のダクト型空気調和機の室内機の室内機本体の電装品室近傍のフレーム構成の説明図である。It is explanatory drawing of the flame | frame structure of the electrical equipment room vicinity of the indoor unit main body of the indoor unit of the duct type air conditioner of a present Example. 本実施例のダクト型空気調和機の室内機の室内機本体の電装品冷却空気通路の説明のための部分斜視図である。It is a fragmentary perspective view for description of the electrical equipment cooling air passage of the indoor unit main body of the indoor unit of the duct type air conditioner of the present embodiment. 本実施例のダクト型空気調和機の室内機の室内機本体の背面図である。It is a rear view of the indoor unit main body of the indoor unit of the duct type air conditioner of the present embodiment. 本実施例のダクト型空気調和機の室内機の室内機本体の吸込空気取り込みの説明図である。It is explanatory drawing of the intake air intake of the indoor unit main body of the indoor unit of the duct type air conditioner of a present Example. 従来のダクト型空気調和機の室内機の室内機本体の一部分解斜視図である。It is a partial exploded perspective view of the indoor unit main body of the indoor unit of the conventional duct type air conditioner. 従来の別のダクト型空気調和機の室内機の室内機本体の一部分解斜視図である。It is a partial exploded perspective view of the indoor unit main body of the indoor unit of another conventional duct type air conditioner.

図1に本発明の1つの実施例のダクト型空気調和機の室内機の側面から見た取り付け状態を示す。1は室内機本体であり、その吸込口1aに吸込ダクト2Aの一端が取り付けられ、その吸込ダクト2Aの他端は吸込グリル3Aにより室内空間4に通じている。また、室内機本体1の吹出口1bに吹出ダクト2Bの一端が取り付けられ、その吹出ダクト2Bの他端は吹出グリル3Bにより室内空間4に通じている。室内機本体1は、天井空間5において、建屋の天井板6に床置き設置されている。室内機本体1は、建屋天井から吊り下げられる場合もある。   FIG. 1 shows an installed state of a duct type air conditioner according to one embodiment of the present invention as viewed from the side of an indoor unit. Reference numeral 1 denotes an indoor unit main body. One end of a suction duct 2A is attached to the suction port 1a, and the other end of the suction duct 2A communicates with the indoor space 4 by a suction grill 3A. In addition, one end of the blowout duct 2B is attached to the blowout port 1b of the indoor unit body 1, and the other end of the blowout duct 2B is communicated with the indoor space 4 by the blowout grill 3B. The indoor unit body 1 is placed on the ceiling plate 6 of the building in the ceiling space 5. The indoor unit body 1 may be hung from the building ceiling.

室内機本体1は、図2および図3に示すように、底面板を兼ねるセーフティドレンパン101と、吹出口1bを備えた前面板102と、吸込口1aを備えた背面板103と、前面板102と背面板103をつなぐ左側の側面板104と、天板105とによって、その筐体が構成されている。前面板102と、背面板103と、側面板104と、前面板102に取り付けられる仕切板106は、セーフティドレンパン101から立設し、筐体骨組αを形成している。セーフティドレンパン101は、筐体骨組αより一回り大きく、本体内の水を外部に漏らさないように周囲に枠101aを備えている。この枠101aと前面板102及び背面板103とを固定することで、筐体骨組αにセーフティドレンパン101が取り付けられている。そして、前面板102には吹出ダクト2Bを取り付ける吹出ダクト取付枠108が設けられ、背面板103には吸込ダクト2Aを取り付ける吸込ダクト取付枠107が設けられている。   As shown in FIGS. 2 and 3, the indoor unit main body 1 includes a safety drain pan 101 that also serves as a bottom plate, a front plate 102 that includes an air outlet 1b, a back plate 103 that includes a suction port 1a, and a front plate 102. The left side plate 104 that connects the rear plate 103 and the top plate 105 constitute a housing. The front plate 102, the back plate 103, the side plate 104, and the partition plate 106 attached to the front plate 102 are erected from the safety drain pan 101 to form a housing frame α. The safety drain pan 101 is slightly larger than the housing frame α, and includes a frame 101a around the body so as not to leak water in the main body to the outside. The safety drain pan 101 is attached to the housing frame α by fixing the frame 101 a to the front plate 102 and the back plate 103. The front plate 102 is provided with a blowing duct mounting frame 108 for mounting the blowing duct 2B, and the back plate 103 is provided with a suction duct mounting frame 107 for mounting the suction duct 2A.

室内機本体1の内部は、図3に示すように、仕切板106と後述する熱交側板141を一列に立設することによって区画壁βを構成し、その区画壁βで区画された一側が送風室120となり、他側が電装品室130と配管室160となる。仕切板106は、図5〜図7、図9に示すように、前面板102の裏面に、側面板104と並行な向きでその前面板102に直交するように、つまり上面から見てT字形状に片端が固定され、筐体内を左右に区画している。そして、電装品室130と配管室140は、その電装品室130の電装品室背面板131によって区画されている。送風室120内には、前面板102の吹出口1bの背面に送風装置150が直接取り付けられ、背面板103の近傍に熱交換器140が縦姿勢で配置されている。この構成により、送風装置150によって吸込口1aから吸い込まれる空気は、室内空間4から吸込グリル3Aと吸込ダクト2Aを通り、冷媒と熱交換器140で熱交換された後、吹出口1bから吹出ダクト2Bと吹出ダクト3Bを通過して、室内空間4に吹き出される。   As shown in FIG. 3, the interior of the indoor unit main body 1 includes a partition wall 106 and a heat exchange side plate 141 (described later) arranged in a row to form a partition wall β, and one side partitioned by the partition wall β is The blower chamber 120 is provided, and the other side is the electrical component chamber 130 and the piping chamber 160. As shown in FIGS. 5 to 7 and 9, the partition plate 106 has a T-shape on the back surface of the front plate 102 so as to be orthogonal to the front plate 102 in a direction parallel to the side plate 104. One end is fixed to the shape, and the inside of the housing is divided into left and right. The electrical component chamber 130 and the piping chamber 140 are partitioned by an electrical component chamber back plate 131 of the electrical component chamber 130. In the blower chamber 120, the blower 150 is directly attached to the back of the blower outlet 1 b of the front plate 102, and the heat exchanger 140 is disposed in a vertical posture in the vicinity of the backplate 103. With this configuration, the air sucked from the suction port 1a by the blower 150 passes through the suction grill 3A and the suction duct 2A from the indoor space 4 and is heat-exchanged by the refrigerant and the heat exchanger 140, and then is blown from the blower outlet 1b. It passes through 2B and the blowout duct 3B and is blown out into the indoor space 4.

熱交換器140は、筐体骨組αに固定するための熱交側板141を備えており、この熱交側板141の一方を仕切板106に、他方を背面板103に取付けることで、筐体骨組αに固定される。送風装置150は、回転軸151に送風ファン152を2台結合して構成され、回転軸151の片端にはモータ支持具153で支持されたモータ154を備え、他端には軸固定台155で支持された軸受具156を備える。送風ファン152は、その送風ファン152を囲い、それぞれ上下に分割でき、前面板102の吹出口1b内に開口するファンケーシング157を備える。モータ支持具153は、前面板102に取り付けるための取付基台158を備える。送風装置150は、軸固定台155、ファンケーシング157、取付基台158を前面板102に取り付けることで、前面板102に固定されている。   The heat exchanger 140 includes a heat exchange side plate 141 for fixing to the housing frame α. By attaching one of the heat exchange side plates 141 to the partition plate 106 and the other to the back plate 103, the frame of the housing is obtained. It is fixed to α. The blower 150 is configured by connecting two blower fans 152 to a rotary shaft 151, and includes a motor 154 supported by a motor support 153 at one end of the rotary shaft 151, and a shaft fixing base 155 at the other end. A supported bearing 156 is provided. The blower fan 152 includes a fan casing 157 that surrounds the blower fan 152 and can be divided into upper and lower parts and opens into the outlet 1b of the front plate 102. The motor support 153 includes an attachment base 158 for attaching to the front plate 102. The blower 150 is fixed to the front plate 102 by attaching the shaft fixing base 155, the fan casing 157, and the mounting base 158 to the front plate 102.

この送風装置150を組み立てる際は、まず、前面板102に対し、表面(本体外側)に、吹出ダクト取付枠108を、裏面(本体内側)に、仕切板106、軸固定台155、モータ支持具153を固定した取付基台158等を、それぞれ固定する。次に、前面板102の表面を底にして、モータ154、ファンケーシング157、軸受具156、回転軸151等を、それぞれ所定の位置に合わせて固定する。このとき、モータ154は、前面板102に対して、仕切板106の側に偏った位置に取り付けられる。そして、図5に示すように、天地を逆さにした天板105の上に、前面板102を起こす。天板105には、その天板105の補強および筐体骨組αを固定するための天板枠105aを備えている。この天板枠105aに前面板102を固定する。   When assembling the blower 150, first, with respect to the front plate 102, the blowing duct mounting frame 108 is provided on the front surface (outside the main body), and the partition plate 106, the shaft fixing base 155, and the motor support on the back surface (inside the main body). The mounting base 158 to which the 153 is fixed is fixed. Next, with the surface of the front plate 102 as the bottom, the motor 154, the fan casing 157, the bearing tool 156, the rotating shaft 151, and the like are fixed to predetermined positions. At this time, the motor 154 is attached to a position biased toward the partition plate 106 with respect to the front plate 102. Then, as shown in FIG. 5, the front plate 102 is raised on the top plate 105 that is upside down. The top plate 105 includes a top plate frame 105a for reinforcing the top plate 105 and fixing the housing frame α. The front plate 102 is fixed to the top plate frame 105a.

このときは、まだ、側面板104は取り付けられていないため、前面板102は天板105の天板枠105aと固定されただけとなり、前面板102の裏面に取り付けられた重量の大きな送風装置150の影響により不安定となる可能性があるが、前面板102に対して上面から見てT字形状となるように仕切板106の片端が固定されているので、仕切板106が天板105で支持され、前面板102は安定して起きた状態を維持できる。さらに、仕切板106は、送風装置150のうち、最も重量が大きいモータ154側に偏った位置に取り付けているので、前面板102の荷重は仕切板106にバランスよくかかり、安定して縦姿勢を維持できる。同様に、背面板103に対し、表面(本体外側)に吸込ダクト取付枠107を、裏面(本体内側)に熱交換器140を取り付ける。熱交換器140は、その熱交換器140に備えられた熱交側板141の一側を背面板103に固定することで取り付けられる。前面板102が取り付けられた天板105内に背面板103を配置し、天板枠105aに背面板103を固定する。次に、熱交側板141の他側を仕切板106の前面板102と固定されない側に固定する。さらに、前面板102と背面板103を繋ぐように、側面板104を取り付け、続いて後述する電装品室130を構成する部材を取り付け、最後にセーフティドレンパン101を被せて取付けることにより、組立が完了する。   At this time, since the side plate 104 is not yet attached, the front plate 102 is only fixed to the top plate frame 105a of the top plate 105, and the heavy air blower 150 attached to the back surface of the front plate 102 is used. Although one end of the partition plate 106 is fixed to the front plate 102 so as to be T-shaped when viewed from the top, the partition plate 106 is a top plate 105. The front plate 102 is supported and can maintain a stable state. Furthermore, since the partition plate 106 is attached to a position biased toward the motor 154 having the largest weight in the blower 150, the load on the front plate 102 is applied to the partition plate 106 in a well-balanced manner and takes a stable vertical posture. Can be maintained. Similarly, the suction duct attachment frame 107 is attached to the front surface (outside the main body) and the heat exchanger 140 is attached to the rear surface (inside the main body). The heat exchanger 140 is attached by fixing one side of the heat exchange side plate 141 provided in the heat exchanger 140 to the back plate 103. The back plate 103 is disposed in the top plate 105 to which the front plate 102 is attached, and the back plate 103 is fixed to the top plate frame 105a. Next, the other side of the heat exchange side plate 141 is fixed to the side of the partition plate 106 that is not fixed to the front plate 102. Further, the side plate 104 is attached so as to connect the front plate 102 and the back plate 103, then a member constituting the electrical component chamber 130 described later is attached, and finally the safety drain pan 101 is attached, and the assembly is completed. To do.

このように、組立途中では図5に示したように、送風装置150が仕切板106によって支えられるため、その他の部品の取り付けをスムーズに行うことができ、組立性が向上する。また、熱交側板141と仕切板106を一列に繋ぐことで、送風室120が電装品室130および配管室160から分離されているので、送風が電装品室130や配管等の影響をうけることなく、送風効率が向上し、吸い込んだ空気によって電装品室130が冷やされて結露することがない。   In this way, as shown in FIG. 5, since the air blower 150 is supported by the partition plate 106 during the assembly, other components can be attached smoothly, and the assemblability is improved. In addition, since the blower chamber 120 is separated from the electrical component chamber 130 and the piping chamber 160 by connecting the heat exchange side plate 141 and the partition plate 106 in a row, the blower is affected by the electrical component chamber 130, the piping, and the like. In addition, the air blowing efficiency is improved, and the electrical component chamber 130 is not cooled and dewed by the sucked air.

電装品室130は、図6〜図9でに示すように、2方を囲うように立設された上面から見てL字形状の一片の電装品室背面板131と他片の電装品室側板132と、その開放した一方の面(電装品室側板132の対面)を外部に対して閉じる電装品室蓋133と、他方の面(前面)を覆う前面板102の一部とで周囲が閉じられ、天板105の一部で上面が閉じられ、上げ底(図8参照)の電装品室底面板134で底面が閉じられた構成となっている。なお、電装品室背面板131には、引出線挿通用の2個の通孔131aが形成されているが、それぞれの通孔131aは引出線通過用の+形状の切り込みが形成されたゴムカバーで閉じられている。そして、電装品室側板132と仕切板106の間に装着された電装品室取付具135により、電装品室側板132と仕切板106が並列配置され、その間に間隔Xが形成されている(図6参照)。そして、電装品室130の内部にはリアクタ136やコンデンサ137やその他の電装品が取り付けられている。なお、リアクタ136やコンデンサ137は、前面板102とは逆の奥上方角部に配置されている。   As shown in FIGS. 6 to 9, the electrical component chamber 130 is composed of an L-shaped electrical component chamber rear plate 131 and the other electrical component chamber as viewed from the upper surface that is erected so as to surround two sides. The side plate 132, the electrical component chamber lid 133 that closes the opened one surface (facing the electrical component chamber side plate 132) to the outside, and a part of the front plate 102 that covers the other surface (front surface) The top surface is closed by a part of the top plate 105, and the bottom surface is closed by the electrical component chamber bottom plate 134 of the raised bottom (see FIG. 8). The electrical component chamber rear plate 131 is formed with two through holes 131a for inserting lead lines. Each through hole 131a has a rubber cover with a + -shaped cut for passing through the lead lines. It is closed with. Then, the electrical component chamber side plate 132 and the partition plate 106 are arranged in parallel by the electrical component chamber mounting tool 135 mounted between the electrical component chamber side plate 132 and the partition plate 106, and an interval X is formed therebetween (see FIG. 6). A reactor 136, a capacitor 137, and other electrical components are attached inside the electrical component chamber 130. Note that the reactor 136 and the capacitor 137 are arranged at the upper corners opposite to the front plate 102.

この構成により、仕切板106の送風室120側の電装品室130近傍は熱交換された空気が流れており、電装品室130にはリアクタ136やコンデンサ137等の発熱部品があるため、送風室120と電装品室130には温度差があり、仕切板106に露が発生する場合もあるが、その場合は、仕切板106の電装品室130の側に露が付き、仕切板106についた露はセーフティドレンパン101に流れる。一方、電装品室130は、仕切板106から間隔Xだけ離れているため、送風機室120および仕切板106の温度の影響を受けず、電装品室130の外側に露が発生することはない。また、電装品室130が上げ底となっているため、セーフティドレンパン101に露が溜まっても、電装品への影響は無い。   With this configuration, heat-exchanged air flows in the vicinity of the electrical component chamber 130 on the side of the blower chamber 120 of the partition plate 106, and the electrical component chamber 130 includes heat generating components such as the reactor 136 and the capacitor 137. There is a temperature difference between 120 and the electrical component chamber 130, and dew may be generated in the partition plate 106. In this case, dew is attached to the electrical component chamber 130 side of the partition plate 106, and the partition plate 106 is attached. The dew flows into the safety drain pan 101. On the other hand, since the electrical component chamber 130 is separated from the partition plate 106 by an interval X, the electrical component chamber 130 is not affected by the temperature of the blower chamber 120 and the partition plate 106, and dew does not occur outside the electrical component chamber 130. In addition, since the electrical component chamber 130 is raised, even if dew accumulates in the safety drain pan 101, the electrical component is not affected.

熱交換器140は、セーフティドレンパン101に縦姿勢で配置されている。熱交換器140の配管出口側を支える熱交側板141は、一側を背面板103に固定され、他側を仕切板106に固定されている。また、熱交換器140は、その熱交換器140の底面とセーフティドレンパン101との間に熱交換器140の露を受けるドレンパン142を備え、このドレンパン142は熱交側板141の下を通って配管室160内まで配置され、配管室160の配管の露受けを兼ねている。   The heat exchanger 140 is arranged in a vertical posture on the safety drain pan 101. The heat exchange side plate 141 that supports the pipe outlet side of the heat exchanger 140 has one side fixed to the back plate 103 and the other side fixed to the partition plate 106. The heat exchanger 140 includes a drain pan 142 that receives dew from the heat exchanger 140 between the bottom surface of the heat exchanger 140 and the safety drain pan 101, and the drain pan 142 passes under the heat exchange side plate 141 and is piped. It arrange | positions to the inside of the chamber 160, and doubles as the dew receiving of the piping of the piping chamber 160.

さらに、配管室160は、熱交換器140の配管部分を内包するように、熱交側板141と、その熱交側板141と一列に繋がれた仕切板106の一部と、電装品室130の電装品室背面板131と、背面板103の一部とで周囲が囲まれることで形成されている。この配管室160の開放面(側面)には、図2、図3、図6、図7および図11に示すように、着脱自在の配管室蓋161が取り付けられる。また、配管室蓋161には、メンテナンス用に開口(図示せず)が設けられていて、その開口は着脱自在の配管カバー162で閉じられるようになっている。さらに、配管室160内には、熱交換器140から伸びる冷媒配管163、サーミスタ164、電子膨張弁(図示せず)等が配置されている。サーミスタ164は、棒形状であって、銅板を折り曲げて形成した装着用の筒形状のサーミスタ取付カバーを備えており、冷媒配管163の冷媒温度を正確に検知できるように、その冷媒配管163にそのサーミスタ取付カバーによって取り付けられている。そして、室外機に対して冷媒を導出/導入する熱交換器140の外部接続配管165は、配管室蓋161および配管カバー162の切欠き部(図示せず)を通って引き出されている。   Furthermore, the piping chamber 160 includes a heat exchange side plate 141, a part of the partition plate 106 connected in a row with the heat exchange side plate 141, and the electrical component chamber 130 so as to include the piping portion of the heat exchanger 140. The electrical component room back plate 131 and a part of the back plate 103 are surrounded by the periphery. As shown in FIGS. 2, 3, 6, 7, and 11, a detachable piping chamber lid 161 is attached to the open surface (side surface) of the piping chamber 160. The piping chamber lid 161 is provided with an opening (not shown) for maintenance, and the opening is closed by a detachable piping cover 162. Further, in the piping chamber 160, a refrigerant pipe 163 extending from the heat exchanger 140, a thermistor 164, an electronic expansion valve (not shown), and the like are arranged. The thermistor 164 has a rod-like shape and is provided with a cylindrical thermistor mounting cover for mounting formed by bending a copper plate, and the refrigerant pipe 163 is provided with the thermistor 164 so that the refrigerant temperature can be accurately detected. It is attached by a thermistor mounting cover. And the external connection piping 165 of the heat exchanger 140 that leads / introduces the refrigerant to / from the outdoor unit is drawn out through the piping chamber lid 161 and a notch (not shown) of the piping cover 162.

これにより、送風室120や電装品室130と区切られた配管室160内のサーミスタ取付カバーを備えたサーミスタ164は、熱交側板141とその熱交側板141と一列に繋がれた仕切板106とにより送風室120から分離されているため、熱交換器140を通る空気の影響を受けず、また、電装品室130と配管室160を区切る電装品室背面板131は、熱交側板141とその熱交側板141と一列に繋がれた仕切板106の繋ぎ目ではなく、仕切板106側に配置されているため、電装品室130の温度の影響を受けることがなく、冷媒配管163を流れる冷媒温度を正確に検知する。また、背面板103の吸込口1aから取り込まれて送風室120に至る空気は、配管室160の影響を受けずに、熱交換器140を通過した空気だけとなるため、効率のよい送風が可能となる。また、配管室蓋161は、天板105の側面や電装品室蓋133の上からネジ等で固定される(図11)ので、配管のメンテナンス時には、配管室蓋161の取り外し/取り付けが簡単となり、メンテナンスの作業性が向上する。また、配管室蓋161は、天板105の下に差し込むように構成することでも、同様な効果を得ることができる。   As a result, the thermistor 164 having the thermistor mounting cover in the piping chamber 160 separated from the blower chamber 120 and the electrical component chamber 130 includes the heat exchange side plate 141 and the partition plate 106 connected to the heat exchange side plate 141 in a row. Is not affected by the air passing through the heat exchanger 140, and the electrical component chamber rear plate 131 that separates the electrical component chamber 130 and the piping chamber 160 includes the heat exchange side plate 141 and the heat exchange side plate 141. The refrigerant flowing through the refrigerant pipe 163 without being affected by the temperature of the electrical component chamber 130 because it is arranged not on the joint of the partition plate 106 connected to the heat exchange side plate 141 but on the partition plate 106 side. Detect temperature accurately. In addition, the air that is taken in from the suction port 1a of the back plate 103 and reaches the blower chamber 120 is only the air that has passed through the heat exchanger 140 without being affected by the piping chamber 160, so efficient air blowing is possible. It becomes. Further, since the piping chamber lid 161 is fixed with screws or the like from the side surface of the top plate 105 or the electrical component chamber lid 133 (FIG. 11), the piping chamber lid 161 can be easily removed / attached during maintenance of the piping. Maintenance workability is improved. The piping chamber lid 161 can be configured to be inserted under the top plate 105 to obtain the same effect.

また、図9に示すように、電装品室130の電装品室側板132には、リアクタ136の上近傍(電装品室130の奥上方角部)に電装品室通孔132aが形成され、仕切板106にも、図5に示すように、この電装品室通孔132aに対応して連通する仕切板通孔106aが形成されている。なお、電装品室通孔132aと仕切板通孔106aとの間は、筒形状のガイド(図示せず)によって接続されている。さらに、吸込口1aの外枠となる吸込取付枠107は、熱交換器140のフィン面積部分よりも大きく、その熱交換器140の配管室160側の一部の配管部分までも含むような大きさに形成されている。これにより、背面板103の吸込口1aは、図11に示すように、熱交側板141により、一方を送風室吸込口1a1とし、他方を開口166とするように、区画されている。このため、図11に示すように、吸込ダクト2Aで吸い込まれた室内空気(たとえば、雰囲気温度35℃)の内のほとんどの空気流F1は吸込口1aから直接熱交換器140に吸い込まれるが、残りの空気流F2は配管室160の開口166から配管室160に吸い込まれる。また、電装品室底面板134は、電装品室側板132の前後幅よりも狭く形成され、このため、図9に示すように、前面板102の裏面と電装品室底面板134との簡に隙間G1が形成されている。また、図9に示すように、電装品室背面板131の下部には、配管室160と電装品室底面板134の下面とが通じるような隙間G2が形成されている。   Further, as shown in FIG. 9, the electrical component chamber side plate 132 of the electrical component chamber 130 has an electrical component chamber through-hole 132a formed in the vicinity of the top of the reactor 136 (the upper upper corner of the electrical component chamber 130). As shown in FIG. 5, the plate 106 is also formed with a partition plate through hole 106a communicating with the electrical component chamber through hole 132a. The electrical component chamber through-hole 132a and the partition plate through-hole 106a are connected by a cylindrical guide (not shown). Furthermore, the suction attachment frame 107 that is an outer frame of the suction port 1a is larger than the fin area portion of the heat exchanger 140 and is large enough to include even a part of the piping portion on the piping chamber 160 side of the heat exchanger 140. Is formed. Thereby, as shown in FIG. 11, the suction port 1 a of the back plate 103 is partitioned by the heat exchange side plate 141 so that one is the blower chamber suction port 1 a 1 and the other is the opening 166. For this reason, as shown in FIG. 11, most of the air flow F1 in the indoor air (for example, the ambient temperature of 35 ° C.) sucked in the suction duct 2A is directly sucked into the heat exchanger 140 from the suction port 1a. The remaining air flow F <b> 2 is sucked into the piping chamber 160 from the opening 166 of the piping chamber 160. Further, the electrical component room bottom plate 134 is formed to be narrower than the front-rear width of the electrical component chamber side plate 132. For this reason, as shown in FIG. A gap G1 is formed. As shown in FIG. 9, a gap G <b> 2 is formed in the lower portion of the electrical component room back plate 131 so that the piping chamber 160 communicates with the lower surface of the electrical component chamber bottom plate 134.

このような構成により、吸込ダクト2Aから開口166に吸い込まれた空気流F2は、配管室160からドレンパン142と電装品室背面板131の間を通り、隙間G2を経由し、電装品室底面板134の下面とセーフティドレンパン101との間を通り、前面板102との間の隙間G1から電装品室130の内部に入り、電装品室側板132の電装品室通孔132a、仕切板106の同様な仕切板通孔106aを通過し、送風室120の送風装置150の送風ファン152に吸引される。この結果、電装品室130内に、図9に矢印で示すように、前面板102側の下方角部から前面板102と逆側の奥上方角部に向かう空気通路が形成され、電装品室130内の全体が効果的に冷却される。また、発熱部品であるリアクタ136やコンデンサ137は空気通路の出口である電装品室通孔132aの近傍にあるため、リアクタ136やコンデンサ137で発生した熱は、電装品室130内には流れず、そのまま電装品室通孔132aから出ることになり、他の部品に影響を与えることがない。また、配管室150内には配管163があり、その配管163には結露による水滴が付き、通常この水滴はドレインパン142に滴下するが、開口166から吸い込まれた空気流F2によって、運ばれることもある。運ばれた水滴は、空気通路が、隙間G2を経由し、電装品室底面板134の下面とセーフティドレンパン101との間を通るため、セーフティドレンパン101内に滴下する。さらに、隙間G2がセーフティドレンパン101の上方に配置されている。以上から、その水滴が電装品室130に入ることはない。   With this configuration, the air flow F2 sucked into the opening 166 from the suction duct 2A passes between the drain pan 142 and the electrical component back plate 131 from the piping chamber 160, passes through the gap G2, and passes through the gap G2. It passes between the lower surface of 134 and the safety drain pan 101, enters the interior of the electrical component chamber 130 through the gap G1 between the front plate 102, and is similar to the electrical component chamber through-hole 132a of the electrical component chamber side plate 132 and the partition plate 106. Passes through the partition plate through hole 106 a and is sucked by the blower fan 152 of the blower 150 of the blower chamber 120. As a result, an air passage is formed in the electrical component chamber 130 from the lower corner portion on the front plate 102 side to the rear upper corner portion on the opposite side of the front plate 102, as indicated by an arrow in FIG. The whole in 130 is cooled effectively. Further, since the reactor 136 and the capacitor 137 that are heat generating components are in the vicinity of the electrical component chamber through-hole 132a that is the outlet of the air passage, the heat generated in the reactor 136 and the capacitor 137 does not flow into the electrical component chamber 130. Then, it comes out of the electrical component chamber through-hole 132a as it is, and does not affect other parts. In addition, there is a pipe 163 in the pipe chamber 150, and water drops due to condensation are attached to the pipe 163. Normally, the water drops drop on the drain pan 142, but are carried by the air flow F2 sucked from the opening 166. There is also. The carried water droplets drop into the safety drain pan 101 because the air passage passes between the lower surface of the electrical component room bottom plate 134 and the safety drain pan 101 via the gap G2. Further, the gap G <b> 2 is disposed above the safety drain pan 101. From the above, the water droplet does not enter the electrical component chamber 130.

1:室内機本体、1a:吸込口、1b:吹出口、2A:吸込ダクト、2B:吹出ダクト、3A:吸込グリル、3B:吹出グリル、4:室内空間、5:天井空間、6:天井
101:セーフティドレンパン、101a:枠、102:前面板、103:背面板、104:側面板、105:天板、106:仕切板、106a:仕切板通孔、107:吸込ダクト取付枠、108:吹出ダクト取付枠
120:送風室
130:電装品室、131:電装品室背面板、132:電装品室側板、132a:電装品室通孔、133:電装品室蓋、134:電装品室底面板、135:電装品室取付具、136:リアクタ、137:コンデンサ
140:熱交換器、141:熱交側板、142:ドレンパン
150:送風装置、151:回転軸、152:送風ファン、153:モータ支持具、154:モータ、155:軸受固定台、156:軸受具、157:ファンケーシング、158:取付基台
160:配管室、161:配管室蓋、162:配管カバー、163:冷媒配管、164:サーミスタ、165:外部接続配管、166:開口
200:室内機本体
210:筐体、211:側面板、211a:開口
220:送風ファン
230:熱交換器
240:電装品室、241:突出部
300:室内機本体
310:送風装置
320:熱交換器
400:外気導入ユニット、401:室内空気吸込口、402:外気吸込口
DESCRIPTION OF SYMBOLS 1: Indoor unit main body, 1a: Suction inlet, 1b: Air outlet, 2A: Air inlet duct, 2B: Air outlet duct, 3A: Air inlet grille, 3B: Air outlet grille, 4: Indoor space, 5: Ceiling space, 6: Ceiling 101 : Safety drain pan, 101a: Frame, 102: Front plate, 103: Back plate, 104: Side plate, 105: Top plate, 106: Partition plate, 106a: Partition plate through hole, 107: Suction duct mounting frame, 108: Blowout Duct mounting frame 120: Blower chamber 130: Electrical component chamber 131: Electrical component chamber rear plate 132: Electrical component chamber side plate 132a: Electrical component chamber through hole 133: Electrical component chamber cover 134: Electrical component chamber bottom plate 135: Electrical component room fixture, 136: Reactor, 137: Capacitor 140: Heat exchanger, 141: Heat exchanger side plate, 142: Drain pan 150: Blower, 151: Rotating shaft, 152: Blower fan, 3: motor support, 154: motor, 155: bearing fixture, 156: bearing fixture, 157: fan casing, 158: mounting base 160: piping chamber, 161: piping chamber lid, 162: piping cover, 163: refrigerant Piping, 164: Thermistor, 165: External connection piping, 166: Opening 200: Indoor unit main body 210: Housing, 211: Side plate, 211a: Opening 220: Blower fan 230: Heat exchanger 240: Electrical component room, 241: Projection part 300: Indoor unit body 310: Blower device 320: Heat exchanger 400: Outside air introduction unit, 401: Indoor air inlet, 402: Outside air inlet

Claims (4)

少なくとも、吹出口を有する前面板と、吸込口を有する背面板と、底面板を兼ねるセーフティドレンパンと、全体の上面を覆う天板と、前記前面板の片端と前記背面板の片端を接続する側面板とで筐体を構成し、前記前面板の裏面に送風装置を固定し、前記背面側の裏面に熱交換器を配置して、室内機本体を構成したダクト型空気調和機の室内機において、
前記筐体内を左右に区画する仕切板を設け、前記仕切板の片端を前記前面板の裏面に固定し、前記熱交換器の配管出口側に前記熱交換器を縦姿勢に保持するための熱交側板を配置し、該熱交側板の一端を前記背面板に固定し、前記熱交側板の他端と前記仕切板の他端を相互に固定し、前記熱交側板と前記仕切板を一列に立設して区画壁とし、前記区画壁で区画された一側に前記送風装置および前記熱交換器を配置する送風室を形成し、前記区画壁で区画された他側に電装品室と配管室を形成し、前記配管室に前記吸込口に通じる開口を形成し、
前記吸込口に吸い込まれる空気の一部を前記開口から前記配管室を経由して前記電装品室に導きさらに該電装品室から前記送風室に導く空気通路を形成したことを特徴とするダクト型空気調和機の室内機。
At least a front plate having an air outlet, a back plate having a suction port, a safety drain pan that also serves as a bottom plate, a top plate that covers the entire top surface, and a side that connects one end of the front plate and one end of the back plate In the indoor unit of a duct type air conditioner that constitutes a housing with a face plate, fixes a blower device on the back side of the front plate, and arranges a heat exchanger on the back side on the back side to constitute an indoor unit main body. ,
A partition plate that divides the inside of the housing into right and left is provided, one end of the partition plate is fixed to the back surface of the front plate, and heat for holding the heat exchanger in a vertical posture on the pipe outlet side of the heat exchanger An exchange side plate is arranged, one end of the heat exchange side plate is fixed to the back plate, the other end of the heat exchange side plate and the other end of the partition plate are fixed to each other, and the heat exchange side plate and the partition plate are arranged in a row. A blower chamber in which the blower and the heat exchanger are arranged on one side partitioned by the partition wall, and an electrical component chamber on the other side partitioned by the partition wall Forming a piping chamber, forming an opening leading to the suction port in the piping chamber;
A duct type characterized in that an air passage is formed in which part of the air sucked into the suction port is led from the opening to the electrical component chamber via the piping chamber and further led from the electrical component chamber to the blower chamber. Air conditioner indoor unit.
請求項1に記載のダクト型空気調和機において、
前記吸込口は、前記熱交側板により一方が送風室吸込口となり、他方が前記開口となるように区画したことを特徴とするダクト型空気調和機。
In the duct type air conditioner according to claim 1,
The duct type air conditioner is characterized in that one of the suction ports is a blower chamber suction port and the other is the opening by the heat exchange side plate.
請求項1または2に記載のダクト型空気調和機の室内機において、
前記電装品室を、前記仕切板に並行配置された電装品室側板と、該電装品室側板に対してL字形状に曲折して連続する電装品室背面板と、前記セーフティドレンパンに対して上げ底形状に配置された電装品室底面板と、前記電装品室を外部に対して閉じる電装品室蓋と、前記天板の一部と、前記前面板の一部とで閉じられる空間として構成し、
且つ、前記電装品室底面板と前記前面板の一部との間に第1の隙間を形成し、前記配管室と前記電装品室底面板の底面との間に第2の隙間を形成し、前記電装品室側板と前記仕切板に相互に連通する通孔をそれぞれ形成し、
前記空気通路が、前記配管室の前記開口、前記配管室の内部、前記第2の隙間、前記電装品室底面板の下面、前記第1の隙間、前記電装品室の内部、前記それぞれの通孔を順次経由する通路であることを特徴とするダクト型空気調和機の室内機。
In the indoor unit of the duct type air conditioner according to claim 1 or 2,
With respect to the electrical component chamber side plate arranged in parallel with the partition plate, the electrical component chamber rear plate that is bent in an L shape with respect to the electrical component chamber side plate, and the safety drain pan. Constructed as a space closed by an electrical component chamber bottom plate arranged in a raised bottom shape, an electrical component chamber lid for closing the electrical component chamber with respect to the outside, a part of the top plate, and a part of the front plate And
In addition, a first gap is formed between the electrical component chamber bottom plate and a part of the front plate, and a second gap is formed between the piping chamber and the electrical component chamber bottom plate. , Each of the electrical component chamber side plate and the partition plate to form a through hole communicating with each other,
The air passage includes the opening of the piping chamber, the interior of the piping chamber, the second gap, the lower surface of the bottom plate of the electrical component chamber, the first gap, the interior of the electrical component chamber, and the respective passages. An indoor unit of a duct-type air conditioner, characterized by being a passage sequentially passing through holes.
請求項1、2又は3に記載のダクト型空気調和機の室内機において、
前記電装品室の前記通孔の近傍に、少なくともリアクタとコンデンサを配置したことを特徴とするダクト型空気調和機の室内機。
In the indoor unit of the duct type air conditioner according to claim 1, 2, or 3,
An indoor unit of a duct-type air conditioner, wherein at least a reactor and a capacitor are arranged in the vicinity of the through hole of the electrical component room.
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