JP5549817B2 - Duct type air conditioner indoor unit - Google Patents

Duct type air conditioner indoor unit Download PDF

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JP5549817B2
JP5549817B2 JP2010291889A JP2010291889A JP5549817B2 JP 5549817 B2 JP5549817 B2 JP 5549817B2 JP 2010291889 A JP2010291889 A JP 2010291889A JP 2010291889 A JP2010291889 A JP 2010291889A JP 5549817 B2 JP5549817 B2 JP 5549817B2
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electrical component
plate
component chamber
indoor unit
chamber
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JP2012141069A (en
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壮彦 中本
大貴 澤田
孝徳 石井
彰 菅野
信幸 森
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Fujitsu General Ltd
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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、電装品室に吸込口を設けただけでは、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, simply by providing a suction port in the electrical component room, the maximum temperature of the atmosphere behind the ceiling is about 60 ° C., and thus the electrical component chamber cannot be sufficiently cooled. To solve 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 body 200, and the side plate 211 is located near the suction port of the blower fan 220. 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).

特開2009−030829号公報JP 2009-030829 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。また、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. In addition, since a part of the substrate of the electrical component chamber 240 is opened to the air passage, moisture generated in the heat exchanger may enter the electrical component chamber 240, causing a short circuit or damage to parts. May lead to

本発明の目的は、簡単な構成で電装品室内を冷却でき、電装品室に水分が発生し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 cool an electrical component room with a simple configuration and prevents moisture from being generated in the electrical component room.

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、周囲に枠を備え且つ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、前記背面板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させ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て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を形成し、前記電装品室は、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を備え、前記電装品室底面板には前記セーフティドレンパンと前記電装品室底面板の間に空気を導くための空気取入口を形成し、天井内の空気を、前記セーフティドレンパンの前記枠の内側から前記空気取入口に導き、前記空気取入口から電装品室内、さらに前記電装品室内から前記送風室内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の室内機において、前記電装品室を、前記仕切板に並列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前記電装品室底面板と、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、前記セーフティドレンパンの前記枠と前記電装品室蓋との間に第2の隙間を形成し、前記電装品室底面板の前記セーフティドレンパンの前記枠を向く上げ底側面に空気取入口を形成し、前記仕切板と前記電装品室側板に相互に連通する通孔を形成し、前記空気通路が、前記第2の隙間、前記空気取入口、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3にかかる発明は、請求項1又は2に記載のダクト型空気調和機の室内機において、前記電装品室の内部を通過する前記空気通路に、少なくともリアクタとコンデンサが含まれるようにしたことを特徴とする。
請求項4にかかる発明は、請求項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、前記電装品室底面板の前記上げ底側面に形成する空気取入口の位置を、前記電装品室底面板の前記電装品室背面板側に偏った位置と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 having a frame around it and serving also as a bottom plate, A top plate covering the upper surface and a side plate connecting one end of the front plate and one end of the back plate constitute a housing, a blower is fixed to the back surface of the front plate, and heat is applied to the back surface of the back plate. In a duct-type air conditioner indoor unit that includes an exchanger and constitutes the indoor unit main body, a partition plate that divides the inside of the housing into left and right sides is provided, and one end of the partition plate is fixed to the back surface of the front plate. A heat exchange side plate for holding the heat exchanger in a vertical position on the pipe outlet side of the heat exchanger, one end of the heat exchange side plate is fixed to the back plate, and the other end of the heat exchange side plate And the other end of the partition plate fixed to each other, the heat exchange side plate and the partition Are arranged in a row to form a partition wall, 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 on the other side partitioned by the partition wall The electrical component chamber includes an electrical component chamber bottom plate disposed in a raised shape with respect to the safety drain pan, and the electrical component chamber bottom plate is interposed between the safety drain pan and the electrical component chamber bottom plate. An air intake for guiding air is formed, and air in the ceiling is guided from the inside of the frame of the safety drain pan to the air intake, and from the air intake, the electrical component chamber, and further from the electrical component chamber, the An air passage leading to the blower chamber is formed.
According to a second aspect of the present invention, in the indoor unit for a duct-type air conditioner according to the first aspect, the electrical component room is connected to the electrical component chamber side plate arranged in parallel to the partition plate, and the electrical component chamber side plate. On the other hand, a back plate of the electrical component room that is bent in an L shape and continuous, the bottom plate of the electrical component chamber disposed in a raised bottom shape with respect to the safety drain pan, and the electrical component that closes the electrical component chamber to the outside A space that is closed by a chamber lid, a part of the top plate, and a part of the front plate, and a first gap between the bottom plate of the electrical component chamber and a part of the front plate A second gap is formed between the frame of the safety drain pan and the electrical component chamber lid, and an air intake is provided on the bottom side surface of the electrical component chamber bottom plate facing the frame of the safety drain pan. Forming and communicating with the partition plate and the electrical component chamber side plate A through hole is formed, and the air passage sequentially passes through the second gap, the air intake, the lower surface of the bottom plate of the electrical component chamber, the first gap, the interior of the electrical component chamber, and the through hole. It is characterized by being a passage.
According to a third aspect of the present invention, in the indoor unit of the duct type air conditioner according to the first or second aspect, at least a reactor and a capacitor are included in the air passage that passes through the interior of the electrical component room. It is characterized by that.
According to a fourth aspect of the present invention, in the indoor unit of the duct type air conditioner according to the second or third aspect, the position of the air intake formed in the raised bottom side surface of the bottom plate of the electric component room is the electric component chamber. The position of the bottom plate is biased toward the electrical component room back plate side.

本発明によれば、天井内の空気をセーフティドレンパンの枠の内側から電装品室内に導きさらに電装品室内から送風室内に導く空気通路を形成したので、その空気通路の空気は送風装置によって吸引されるため、電装品室内に空気がこもることが無くなり、たとえ天井裏の最高で60℃程度になる空気が取り込まれるときでも、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、電装品室を通る空気通路は、熱交換器を通過する空気通路とは分離しているため、電装品室に水分が発生することはない。   According to the present invention, since the air in the ceiling is led from the inside of the frame of the safety drain pan to the electrical component chamber and further from the electrical component chamber to the blower chamber, the air in the air channel is sucked by the blower. Therefore, air is not trapped in the electrical component room, and even when air having a maximum temperature of about 60 ° C. in the back of the ceiling is taken in, the heat generating components existing in the electrical component room are effectively cooled. In addition, since the air passage that passes through the electrical component chamber is separated from the air passage that passes through the heat exchanger, moisture is not generated in the electrical component chamber.

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天板を取り外した状態の仕切板近傍の部分斜視図である。It is a fragmentary perspective view of the partition plate vicinity 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部分斜視図である。It is a fragmentary perspective 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天板を取り外した状態の電装品室の部分斜視図である。It is a fragmentary perspective view of the electrical component 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配管カバーを取り外した状態の配管室の部分斜視図である。It is a fragmentary perspective view of the piping chamber of the state which removed the piping cover 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の斜視図である。It is a partial exploded perspective view of the indoor unit main body of the indoor unit of the conventional duct type air conditioner.

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8、図10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160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、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 8 and 10, the partition plate 106 is formed in 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 160 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 heat exchanger 140, and then from the blower outlet 1b to the blowout duct 2B. It passes through the blowing duct 3B and is blown 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、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 air 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6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. 6, 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6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がなく、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. 6, the air blower 150 is supported by the partition plate 106 during the assembly, so that 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. The air blowing efficiency is improved, and the electrical component chamber 130 is not cooled by the sucked air and does not condense.

電装品室130は、図7〜図10で示すように、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、底面が上げ底(図9参照)の電装品室底面板134で閉じられた構成となっている。この電装品室底面板134は、上げ底側面134aを有しており、その上げ底側面134aの下端がセーフティドレンパン101と当接し、上げ底側面134aの高さにより、セーフティドレンパン101から電装品室底面板134を上げ底状態に支持している。なお、本実施例では、この電装品室底面板134は電装品室側板132を延出して折り曲げて形成しているが、別部材で構成してもよい。   As shown in FIGS. 7 to 10, the electrical component chamber 130 is composed of an L-shaped electrical component chamber rear plate 131 and the other electrical component chamber side plate as viewed from the upper surface standing so as to surround two sides. The periphery is closed by 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 room bottom plate 134 having a raised bottom (see FIG. 9). The electrical component chamber bottom plate 134 has a raised bottom side surface 134a. The lower end of the raised bottom side surface 134a abuts on the safety drain pan 101, and the electrical component chamber bottom plate 134 is separated from the safety drain pan 101 by the height of the raised bottom side surface 134a. Is supported in the bottom state. In the present embodiment, the electrical component chamber bottom plate 134 is formed by extending and bending the electrical component chamber side plate 132, but may be formed of a separate member.

そして、電装品室側板132の電装品室背面板131側は、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により取り付けられ、電装品室側板132の前面板102側は、電装品室側板132の前面板102側を延出し仕切板106側に向けて折り曲げて形成した取付部132b(図8参照)が仕切板106に取付けられ、これにより、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7参照)。なお、本実施例では、電装品室側板132の前面板102側は、電装品室側板132の前面板102側を延出し仕切板106側に向けて折り曲げて形成した取付部により仕切板106に取り付けられているが、電装品室背面板131側と同様に電装品室取付具135で仕切板106に取り付けてもよい。   The electrical component room side plate 132 and the electrical component room back plate 131 side are attached by an electrical component room fixture 135 mounted between the electrical component chamber side plate 132 and the partition plate 106, and the front plate of the electrical component room side plate 132 is attached. On the 102 side, an attachment portion 132b (see FIG. 8) formed by extending the front plate 102 side of the electrical component room side plate 132 toward the partition plate 106 side is attached to the partition plate 106, thereby the electrical component chamber. The side plate 132 and the partition plate 106 are arranged in parallel, and an interval X is formed between them (see FIG. 7). In the present embodiment, the front plate 102 side of the electrical component chamber side plate 132 is attached to the partition plate 106 by an attachment portion formed by extending the front plate 102 side of the electrical component chamber side plate 132 toward the partition plate 106 side. Although attached, you may attach to the partition plate 106 with the electrical component room fixture 135 similarly to the electrical component room backplate 131 side.

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(図8参照)。なお、リアクタ136やコンデンサ137は、前面板102とは逆の上方角部に配置されている。   A reactor 136, a capacitor 137, and other electrical components are attached inside the electrical component chamber 130 (see FIG. 8). The reactor 136 and the capacitor 137 are arranged at the upper corner 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 the 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.

また、図10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やコンデンサ137の近傍に電装品室通孔132aが形成され、その電装品室通孔132aと対応する仕切板106の位置にも、図5に示すように、仕切板通孔106aが形成されている。さらに、上げ底の電装品室底面板134には、セーフティドレンパン101の枠101aに対向する上げ底側面134aに、電装品室蓋133によって閉塞されることがない切欠きによる空気取入口134bが形成されている。この空気取入口134bは、本実施例では上げ底側面134aの前面板102側から離間した位置に形成しているが、上げ底側面134aの前面板102側から連続して形成してもよい。なお、この電装品室底面板134は、前面板102の裏面から所定の距離を離間した位置に配置されるため、前面板102の裏面と電装品室底面板134との間で電装品室130の下方角部に隙間G1が形成されている。また、セーフティドレンパン101は筐体骨組αよりも大きいため、セーフティドレンパン101の枠101aと電装品室蓋133との間に隙間G2が形成されている。   As shown in FIG. 10, the electrical component chamber side plate 132 of the electrical component chamber 130 has an electrical component chamber through hole 132a in the vicinity of the reactor 136 and the capacitor 137, and corresponds to the electrical component chamber through hole 132a. As shown in FIG. 5, a partition plate through hole 106 a is also formed at the position of the partition plate 106. Further, an air intake port 134b is formed in the raised bottom electrical component chamber bottom plate 134 on the raised bottom side surface 134a facing the frame 101a of the safety drain pan 101 by a notch that is not blocked by the electrical component chamber lid 133. Yes. In this embodiment, the air inlet 134b is formed at a position spaced from the front plate 102 side of the raised bottom side surface 134a, but may be formed continuously from the front plate 102 side of the raised bottom side surface 134a. Since the electrical component room bottom plate 134 is disposed at a predetermined distance from the back surface of the front plate 102, the electrical component chamber 130 is disposed between the back surface of the front plate 102 and the electrical component chamber bottom plate 134. A gap G1 is formed at the lower corner of the. Further, since the safety drain pan 101 is larger than the housing frame α, a gap G2 is formed between the frame 101a of the safety drain pan 101 and the electrical component chamber lid 133.

この構成により、送風装置150によって吸い込まれる天井裏内の空気は、セーフティドレンパン101の枠101aと電装品室蓋133との隙間G2から、電装品室底面板134の空気取入口134bに入り込み、その電装品室底面板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との隙間G1から電装品室130内に入り、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10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の近傍に配置されているため、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。   With this configuration, the air in the ceiling behind the air sucked in by the blower 150 enters the air intake port 134b of the electrical component chamber bottom plate 134 from the gap G2 between the frame 101a of the safety drain pan 101 and the electrical component chamber lid 133. It passes between the lower surface of the electrical component room bottom plate 134 and the safety drain pan 101, enters the electrical component chamber 130 through the gap G1 with the front plate 102, and passes through the electrical component chamber through-hole 132a of the electrical component chamber side plate 132 and the partition plate 106. It passes through the same partition plate through hole 106a and is sucked by the blower fan 152 of the blower 150 of the blower chamber 120. As a result, an air passage from the lower corner on the front plate 102 side to the upper corner on the opposite side of the front plate 102 is formed in the electric component chamber 130 as indicated by an arrow in FIG. The whole inside is cooled effectively. Further, since the reactor 136 and the capacitor 137 that are heat generating components are disposed 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 is generated in the electrical component chamber 130. Will not flow through the electrical component chamber through-hole 132a, and other components will not be affected.

なお、電装品室側板132の前面板102側の取り付けを、電装品室側板132の前面板102側を延出し仕切板106側に向けて折り曲げて形成した取付部により仕切板106に取り付けると、電装品室130内に空気が吸い込まれる際にその取付部が電装品室130の背面側の遮蔽となり隙間G1へ漏れなく吸い込まれる。   In addition, when the attachment on the front plate 102 side of the electrical component chamber side plate 132 is attached to the partition plate 106 by an attachment portion formed by extending the front plate 102 side of the electrical component chamber side plate 132 toward the partition plate 106 side, When air is sucked into the electrical component chamber 130, the mounting portion serves as a shield on the back side of the electrical component chamber 130, and is sucked into the gap G1 without leakage.

また、空気取入口134bは、その空気取入口134bから吸い込まれた空気が隙間G1へ流れればよく、構造を簡単にするため、上げ底側面134aの前面板102側から連続して形成してもよいが、空気取入口134bが小さいと電装品室底面板134の下面とセーフティドレンパン101との間を通る距離が短くなり、空気取入口134bから吸い込まれた空気が隙間G1の空気取入口134b側に偏った位置から電装品室130に吸い込まれ、電装品室が十分に冷却できないため、空気取入口134bから吸い込まれた空気が、電装品室底面板134の下面とセーフティドレンパン101との間で十分に広がって隙間G1を通過するように、空気取入口134bの幅の大きさを大きくすることが必要になる。   The air inlet 134b may be formed continuously from the front plate 102 side of the raised bottom side surface 134a in order to simplify the structure as long as the air sucked from the air inlet 134b flows into the gap G1. However, if the air intake port 134b is small, the distance passing between the lower surface of the electrical component room bottom plate 134 and the safety drain pan 101 is shortened, and the air sucked from the air intake port 134b becomes closer to the air intake port 134b side of the gap G1. Since the electrical component chamber cannot be sufficiently cooled by being sucked into the electrical component chamber 130 from a position biased toward the air, the air sucked from the air intake port 134b is interposed between the lower surface of the electrical component chamber bottom plate 134 and the safety drain pan 101. It is necessary to increase the width of the air intake port 134b so that the air intake port 134b passes through the gap G1.

一方、空気取入口134bを前面板102側から離間した位置に形成すると、上げ底側面134aが、空気取入口134bを挟んで電装品室底面板134をセーフティドレンパンから上げ底状態に支持する支持部として形成されてアーチ状となるため、強度が増し安定して支持でき、また、隙間G1から空気取入口134bが離間されたことで、空気取入口134bを大きくしなくても電装品室底面板134の下面とセーフティドレンパン101との間を空気が通過する距離が長くなることで、隙間G1を通過するまでにセーフティドレンパン内で幅方向に十分に拡がる。つまり、空気取入口134bから吸い込まれた空気は、隙間G1の空気取入口134b側に偏ることなく、隙間G1の前面板102と対向する幅方向に幅広く通過するため、電装品室130内を効果的に冷却できるため、更に有効である。   On the other hand, when the air intake port 134b is formed at a position separated from the front plate 102 side, the raised bottom side surface 134a is formed as a support portion that supports the electrical component chamber bottom plate 134 from the safety drain pan in a raised bottom state with the air intake port 134b interposed therebetween. As a result, the strength increases and it can be supported stably. Also, since the air intake port 134b is separated from the gap G1, the electric component chamber bottom plate 134 can be formed without increasing the air intake port 134b. Since the distance that the air passes between the lower surface and the safety drain pan 101 becomes longer, the distance is sufficiently expanded in the width direction in the safety drain pan before passing through the gap G1. In other words, the air sucked from the air intake port 134b passes through the gap G1 in the width direction facing the front plate 102 without being biased toward the air intake port 134b of the gap G1, so that the inside of the electrical component chamber 130 is effective. It is more effective because it can be cooled.

以上から、空気取入口134bと隙間G1とを離間する距離は、電装品室底面板134の下面とセーフティドレンパン101との間を空気が通過する距離が長いほうが有効なため、空気取入口134bの位置は、電装品室背面板131側に偏った位置のほうが有効である。   From the above, the distance between the air inlet 134b and the gap G1 is effective when the distance that the air passes between the lower surface of the electrical component chamber bottom plate 134 and the safety drain pan 101 is longer. The position is more effective when it is biased toward the electrical component room back plate 131 side.

本実施例によれば、天井内の空気をセーフティドレンパンの枠の内側から電装品室内に導きさらに電装品室内から送風室内に導く空気通路を形成したので、その空気通路の空気は送風装置によって吸引されるため、電装品室内に空気がこもることが無くなり、たとえ天井裏の最高で60℃程度になる空気が取り込まれるときでも、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、電装品室を通る空気通路は、熱交換器を通過する空気通路とは分離しているため、電装品室に水分が発生することはない。   According to this embodiment, since the air passage leading from the inside of the frame of the safety drain pan to the electrical component chamber and leading from the electrical component chamber to the blower chamber is formed, the air in the air passage is sucked by the blower. Therefore, air is not trapped in the electrical component room, and even when air having a maximum temperature of about 60 ° C. in the back of the ceiling is taken in, the heat generating component existing in the electrical component room is effectively cooled. In addition, since the air passage that passes through the electrical component chamber is separated from the air passage that passes through the heat exchanger, moisture is not generated in the electrical component chamber.

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10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161aが設けられていて、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(図示せず)、電子膨張弁(図示せず)等が配置されている。サーミスタは、棒形状であって、銅板を折り曲げて形成した筒形状のサーミスタ取付カバー164内に挿入されており、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にサーミスタ取付カバー164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161b,162aを通って外部に引き出されている。   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. 10 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 161a for maintenance, and 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 (not shown), an electronic expansion valve (not shown), and the like are arranged. The thermistor has a rod shape and is inserted into a cylindrical thermistor mounting cover 164 formed by bending a copper plate. The thermistor is attached to the refrigerant pipe 163 so that the refrigerant temperature of the refrigerant pipe 163 can be accurately detected. A cover 164 is attached. 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 the notches 161b and 162a 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164内のサーミスタは、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から遮蔽されているため、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もなく、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内の冷媒配管163等が通風抵抗となるような影響を受けずに、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 in the thermistor mounting cover 164 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. Since it is shielded from the air blowing chamber 120, it is not affected by the air passing through the heat exchanger 140, and the electrical component room back plate 131 that separates the electrical component chamber 130 and the piping chamber 160 is the heat exchange side plate 141 and its heat. The temperature of the refrigerant flowing through the refrigerant pipe 163 is not affected by the temperature of the electrical component chamber 130 because it is arranged on the side of the divider plate 106 instead of the joint of the divider plate 106 connected to the intersection plate 141 in a row. Is detected 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 passes through the heat exchanger 140 without being affected by the refrigerant piping 163 in the piping chamber 160 being affected by ventilation resistance. Since only air is used, efficient air blowing is possible. 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.

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: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:通孔、132b:取付部、133:電装品室蓋、134:電装品室底面板、134a:上げ底側面、134b:空気取入口、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、161a:開口、161b:切欠き部、162:配管カバー、162a:切欠き部、163:冷媒配管、164:サーミスタ取付カバー、165:外部接続配管
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、341:突出部
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: 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: Through hole 132b: Mounting portion 133: Electrical component chamber lid 134: Electrical component chamber bottom plate , 134a: Raised bottom side surface, 134b: Air intake port, 135: Electrical component mounting fixture, 136: Reactor, 137: Condenser 140: Heat exchanger, 141: Heat exchange side plate, 142: Drain pan 150: Wind device, 151: rotating shaft, 152: blower fan, 153: motor support, 154: motor, 155: bearing fixture, 156: bearing fixture, 157: fan casing, 158: mounting base 160: piping chamber, 161 : Piping chamber lid, 161a: Opening, 161b: Notch, 162: Piping cover, 162a: Notch, 163: Refrigerant piping, 164: Thermistor mounting cover, 165: External connection piping 200: Indoor unit body 210: Enclosure Body, 211: side plate, 211a: opening 220: blower fan 230: heat exchanger 240: electrical component room, 341: protrusion

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、周囲に枠を備え且つ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、前記背面板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させ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て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を形成し、前記電装品室は、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を備え、前記電装品室底面板には前記セーフティドレンパンと前記電装品室底面板の間に空気を導くための空気取入口を形成し、
天井内の空気を、前記セーフティドレンパンの前記枠の内側から前記空気取入口に導き、前記空気取入口から電装品室内、さらに前記電装品室内から前記送風室内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 having a frame and serving as a bottom plate, a top plate covering the entire top surface, one end of the front plate and the back plate A duct-type air that forms a housing with a side plate connecting one end of the front plate, fixes a blower on the back side of the front plate, and arranges a heat exchanger on the back side of the back plate to constitute the main body of the indoor unit In the indoor unit of the harmony machine,
A partition plate that divides the inside of the housing into left and right sides 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 is formed, and an electrical component chamber is formed on the other side partitioned by the partition wall. The electrical component chamber includes an electrical component chamber bottom plate disposed in a raised shape with respect to the safety drain pan, and air is provided between the safety drain pan and the electrical component chamber bottom plate on the electrical component chamber bottom plate. Forming an air intake for leading,
The air in the ceiling is guided from the inside of the frame of the safety drain pan to the air intake, and an air passage is formed to guide the air from the air intake to the electrical component chamber, and further from the electrical component chamber to the blower chamber. Duct type air conditioner indoor unit.
請求項1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、前記仕切板に並列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前記電装品室底面板と、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、前記セーフティドレンパンの前記枠と前記電装品室蓋との間に第2の隙間を形成し、前記電装品室底面板の前記セーフティドレンパンの前記枠を向く上げ底側面に空気取入口を形成し、前記仕切板と前記電装品室側板に相互に連通する通孔を形成し、
前記空気通路が、前記第2の隙間、前記空気取入口、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,
With respect to the electrical component chamber side plate arranged in parallel to 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. As a space closed by the bottom plate of the electrical component room 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 Configure
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 frame of the safety drain pan and the electrical component chamber lid. , An air intake is formed on the bottom side surface of the electrical component chamber bottom plate facing the frame of the safety drain pan, and a through hole communicating with the partition plate and the electrical component chamber side plate is formed.
The air passage is a passage that sequentially passes through the second gap, the air intake, the lower surface of the bottom plate of the electrical component chamber, the first clearance, the interior of the electrical component chamber, and the through hole. A duct-type air conditioner indoor unit.
請求項1又は2に記載のダクト型空気調和機の室内機において、
前記電装品室の内部を通過する前記空気通路に、少なくともリアクタとコンデンサが含まれるように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 or 2,
An indoor unit of a duct-type air conditioner, wherein at least a reactor and a capacitor are included in the air passage that passes through the interior of the electrical component room.
請求項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、
前記電装品室底面板の前記上げ底側面に形成する空気取入口の位置を、前記電装品室底面板の前記電装品室背面板側に偏った位置と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 2 or 3,
A duct type air conditioner characterized in that the position of the air intake formed in the raised bottom side surface of the electrical component room bottom plate is biased toward the electrical component chamber rear plate side of the electrical component chamber bottom plate. Indoor unit.
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