JP6696261B2 - Air conditioner outdoor unit - Google Patents

Air conditioner outdoor unit Download PDF

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JP6696261B2
JP6696261B2 JP2016064844A JP2016064844A JP6696261B2 JP 6696261 B2 JP6696261 B2 JP 6696261B2 JP 2016064844 A JP2016064844 A JP 2016064844A JP 2016064844 A JP2016064844 A JP 2016064844A JP 6696261 B2 JP6696261 B2 JP 6696261B2
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liquid
gas
pipe
outdoor unit
connecting portion
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JP2017180885A (en
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英司 滝
英司 滝
前田　訓孝
訓孝 前田
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Fujitsu General Ltd
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Description

本発明は、複数台の室内機が接続される空気調和装置の室外機に関する。     The present invention relates to an outdoor unit of an air conditioner to which a plurality of indoor units are connected.

従来の空気調和装置の室外機には、複数台の室内機を接続するための複数の液管接続部およびガス管接続部を有する接続ポートが設けられている。接続ポートは、空気調和装置の設置時において接続ポートに液管とガス管を接続する際の作業性を確保するために、室外機の筐体の側面に設けられ、カバー部材により覆われている。この接続ポートは、例えば、液管接続部およびガス管接続部の各々が筐体の高さ方向に並べて配置されるとともに、各液管接続部に対し各ガス管接続部が室外機の筐体側面より外側に配置されるものがある（例えば、特許文献１）。   An outdoor unit of a conventional air conditioner is provided with a connection port having a plurality of liquid pipe connecting portions and a gas pipe connecting portion for connecting a plurality of indoor units. The connection port is provided on the side surface of the housing of the outdoor unit and is covered with a cover member in order to ensure workability when connecting the liquid pipe and the gas pipe to the connection port when installing the air conditioner. .. In this connection port, for example, each of the liquid pipe connecting portion and the gas pipe connecting portion is arranged side by side in the height direction of the housing, and each gas pipe connecting portion is provided with respect to each liquid pipe connecting portion in the housing of the outdoor unit. Some are arranged outside the side surface (for example, Patent Document 1).

特許文献１に記載の室外機においては、液管接続部とガス管接続部が筐体の横方向に並べて配置されるため、筐体の横方向の寸法が大きくなる。また、液管接続部と室外機の液冷媒配管（液ヘッダ部）を接続する配管（以降、液分岐管と記載）には、液管接続部と同数の膨張弁が設けられており、複数の膨張弁が横向きの姿勢で室外機の底板に対し平行に配置されている。このため、各膨張弁の弁部やコイル部が筐体の前後方向に突き出るので、筐体の前後方向と同じ方向に延びるカバー部材の前後方向の寸法も大きくなる。そこで、筐体の横方向の寸法とカバー部材の前後方向の寸法が大きくなるのを防止する対策として、液管接続部とガス管接続部を筐体の高さ方向に交互に一列に配置するとともに、複数の膨張弁を縦向き姿勢で底板に対し弁部やコイル部が上方に向くようにして垂直に配置することが考えられる。   In the outdoor unit described in Patent Document 1, since the liquid pipe connecting portion and the gas pipe connecting portion are arranged side by side in the lateral direction of the housing, the lateral dimension of the housing becomes large. Further, a pipe (hereinafter, referred to as a liquid branch pipe) that connects the liquid pipe connection portion and the liquid refrigerant pipe (liquid header portion) of the outdoor unit is provided with the same number of expansion valves as the liquid pipe connection portion, and a plurality of expansion valves are provided. The expansion valve is disposed in a horizontal position in parallel with the bottom plate of the outdoor unit. Therefore, since the valve portion and the coil portion of each expansion valve protrude in the front-rear direction of the housing, the front-rear dimension of the cover member extending in the same direction as the front-rear direction of the housing also increases. Therefore, as a measure for preventing the lateral dimension of the casing and the longitudinal dimension of the cover member from increasing, the liquid pipe connecting portions and the gas pipe connecting portions are alternately arranged in a row in the height direction of the casing. At the same time, it is conceivable to arrange a plurality of expansion valves vertically in a vertical position with the valve portion and the coil portion facing upward with respect to the bottom plate.

特開２０１５−０８１７４６号公報JP, 2005-081746, A

しかしながら、複数の膨張弁を縦向き姿勢で底板に対し弁部やコイル部が上方に向くようにして垂直に配置すると、各膨張弁の弁部やコイル部は当該膨張弁が設けられる液分岐管より上方に突き出るので、各膨張弁を横向き姿勢で底板に対し平行に配置する場合と比べて、接続ポートの高さ寸法が大きくなる。特に、数多く（例えば６台）の室内機を室外機に接続するために液管接続部とガス管接続部を増やすと、それに伴って膨張弁の数も増えるので、カバー部材の高さ寸法が筐体の高さ寸法より大きくなる恐れがあった。   However, when a plurality of expansion valves are arranged vertically in a vertical position with the valve portion and the coil portion facing upward with respect to the bottom plate, the valve portion and the coil portion of each expansion valve are connected to the liquid branch pipe where the expansion valve is provided. Since it protrudes further upward, the height dimension of the connection port becomes larger than that in the case where each expansion valve is arranged in a horizontal position in parallel with the bottom plate. In particular, when the number of liquid pipe connections and gas pipe connections is increased in order to connect a large number (for example, six) of indoor units to the outdoor unit, the number of expansion valves also increases accordingly, so the height dimension of the cover member is increased. There was a risk that the height would be larger than the height of the housing.

本発明は上記問題点に鑑み、液管接続部とガス管接続部を筐体の高さ方向に交互に一列に配置することで接続ポートを覆うカバー部材の横方向の寸法を小さくした場合に、カバー部材の高さ寸法と前後方向の寸法を小さくすることができる空気調和装置の室外機を提供することを目的とする。   In view of the above problems, the present invention is directed to a case where the lateral dimension of the cover member that covers the connection port is reduced by arranging the liquid pipe connection portion and the gas pipe connection portion in a row alternately in the height direction of the housing. An object of the present invention is to provide an outdoor unit for an air conditioner in which the height dimension of the cover member and the dimension in the front-rear direction can be reduced.

上記課題を解決するために、本発明の空気調和装置の室外機は、底板を有し圧縮機と室外熱交換器と液冷媒配管とガス冷媒配管を有する室外機冷媒回路を収める筐体と、筐体の側面に配置され複数台の室内機の各々に接続される各液管を液冷媒配管に接続するとともに複数台の室内機の各々に接続される各ガス管をガス冷媒配管に接続する接続ポートを備えるものである。
接続ポートは複数のガス管接続部と複数の液管接続部と複数のガス分岐管と複数の液分岐管と複数の膨張弁と取付部材を有する。各ガス管接続部はガス分岐管が接続されるガス側ユニオンとガス管が接続されるガス側接続部を有する。各液管接続部は液分岐管が接続される液側ユニオンと液管が接続される液側接続部を有する。取付部材は複数の液管接続部と複数のガス管接続部を筐体の上下方向にかつ交互に一列に並べて配置するとともに各液側接続部と各ガス側接続部が筐体の後方側に臨むように配置する。各ガス分岐管は一端がガス冷媒配管に接続され他端がガス側ユニオンに接続される。各液分岐管は一端が液冷媒配管に接続され他端が液側ユニオンに接続されるとともに、底板に対して所定の角度で上方に折り曲げられる。
そして、各膨張弁は各液分岐管に組み付けられ、各液分岐管の折り曲げられた折り曲げ点よりも上部に配置される。 In order to solve the above problems, the outdoor unit of the air conditioner of the present invention is a housing having an outdoor unit refrigerant circuit having a bottom plate, a compressor, an outdoor heat exchanger, a liquid refrigerant pipe, and a gas refrigerant pipe, Connect each liquid pipe connected to each of the plurality of indoor units, which is arranged on the side surface of the housing, to the liquid refrigerant pipe, and connect each gas pipe connected to each of the plurality of indoor units to the gas refrigerant pipe. It has a connection port.
The connection port has a plurality of gas pipe connecting portions, a plurality of liquid pipe connecting portions, a plurality of gas branch pipes, a plurality of liquid branch pipes, a plurality of expansion valves, and a mounting member. Each gas pipe connecting portion has a gas side union to which the gas branch pipe is connected and a gas side connecting portion to which the gas pipe is connected. Each liquid pipe connecting portion has a liquid side union to which the liquid branch pipe is connected and a liquid side connecting portion to which the liquid pipe is connected. The mounting member has a plurality of liquid pipe connecting portions and a plurality of gas pipe connecting portions arranged in a row in the vertical direction of the casing and alternately in a line, and each liquid side connecting portion and each gas side connecting portion are arranged on the rear side of the casing. Place it so that it faces you. Each gas branch pipe has one end connected to the gas refrigerant pipe and the other end connected to the gas side union. Each liquid branch pipe has one end connected to the liquid refrigerant pipe and the other end connected to the liquid side union, and is bent upward at a predetermined angle with respect to the bottom plate.
Then, each expansion valve is assembled to each liquid branch pipe, and is arranged above the bent point of each liquid branch pipe.

本発明の空気調和装置の室外機によれば、各液分岐管は一端が液冷媒配管に接続され他端が液側ユニオンに接続されるとともに底板に対して所定の角度で上方に折り曲げられ、各膨張弁は各液分岐管に組み付けられる。各膨張弁は各液分岐管の折り曲げられた折り曲げ点よりも上部に配置される。従って、液管接続部とガス管接続部を筐体の高さ方向に交互に一列に配置することで接続ポートを覆うカバー部材の横方向の寸法を小さくした場合に、カバー部材の高さ寸法と前後方向の寸法を小さくすることができる。   According to the outdoor unit of the air conditioner of the present invention, each liquid branch pipe is bent upward at a predetermined angle with respect to the bottom plate while having one end connected to the liquid refrigerant pipe and the other end connected to the liquid side union, Each expansion valve is attached to each liquid branch pipe. Each expansion valve is arranged above the bent point of each liquid branch pipe. Therefore, when the horizontal dimension of the cover member that covers the connection port is reduced by alternately arranging the liquid pipe connection portion and the gas pipe connection portion in a row in the height direction of the housing, the height dimension of the cover member is reduced. And the dimension in the front-back direction can be reduced.

本発明の空気調和装置の室外機のカバー部材を取り外した状態の斜視図である。It is a perspective view of the state which removed the cover member of the outdoor unit of the air harmony device of the present invention. 図１において接続ポートをＸ方向から見た右側面図である。It is a right view which looked at the connection port from the X direction in FIG. 本発明の室外機のサービスパネルおよびカバー部材を取り外した状態の要部斜視図である。It is a principal part perspective view in the state which removed the service panel and cover member of the outdoor unit of this invention. 本発明の室外機のサービスパネルおよびコンジットパネルを取り外し、接続ポートを背面側から見た状態を示す要部斜視図である。It is a principal part perspective view which shows the state which looked at the connection port from the back side with the service panel and conduit panel of the outdoor unit of this invention removed. 本発明の室外機を前面側から見た図１のＰ−Ｐ断面に相当する断面図である。It is sectional drawing equivalent to the PP cross section of FIG. 1 which looked at the outdoor unit of this invention from the front side. 本発明の室外機を上面側から見た図１のＱ−Ｑ断面に相当する断面図である。It is sectional drawing equivalent to the QQ cross section of FIG. 1 which looked at the outdoor unit of this invention from the upper surface side. 図１のＱ−Ｑ断面図であり、断面を右斜め上方から見た図である。It is a QQ sectional view of FIG. 1, and is the figure which saw the cross section from diagonally right upper. 本発明のカバー部材を示す説明図で、（ａ）は裏面図、（ｂ）は裏面から見た斜視図である。It is explanatory drawing which shows the cover member of this invention, (a) is a back view, (b) is the perspective view seen from a back surface. 本発明の取付部材を示す斜視図である。It is a perspective view which shows the attachment member of this invention. 本発明の取付部材と規制プレートを示す斜視図である。It is a perspective view showing a mounting member and a regulation plate of the present invention. 規制プレートと液管接続部とガス管接続部の取付部材への組み付けを説明する図である。It is a figure explaining the assembly to a mounting member of a regulation plate, a liquid pipe connection part, and a gas pipe connection part. 図１１のＡ方向から見た規制プレートと液管接続部とガス管接続部の寸法関係を示す平面図である。It is a top view which shows the dimensional relationship of the regulation plate, the liquid pipe connection part, and the gas pipe connection part seen from the A direction of FIG.

以下、本発明の実施形態を添付図面に基づき詳細に説明する。図１乃至図１２は、本実施形態における空気調和装置の室外機を説明する図である。本実施形態における空気調和装置の室外機は、複数台の室内機（例えば６台、図示省略）が液管とガス管で接続されるマルチ式の空気調和装置の室外機である。   Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 to 12 are diagrams illustrating an outdoor unit of an air conditioner according to this embodiment. The outdoor unit of the air conditioner according to the present embodiment is an outdoor unit of a multi-type air conditioner in which a plurality of indoor units (for example, six units, not shown) are connected by a liquid pipe and a gas pipe.

図１、図６、図７に示すように、室外機１は、直方体形状の筐体２を有している。筐体２の外郭は、底板２１と、前面パネル２２と、背面パネルの一部を兼ねる側面パネル２５と、天板２６と、支柱２７とを備えている。前面パネル２２は、吹出パネル２２ａとサービスパネル２２ｂを備え、側面パネル２５は、接続ポート配置パネル２５ａとコンジットパネル２５ｂを備えている。吹出パネル２２ａとサービスパネル２２ｂと接続ポート配置パネル２５ａの一部とコンジットパネル２５ｂと支柱２７の下端は、底板２１にネジ止めされる。吹出パネル２２ａとサービスパネル２２ｂと接続ポート配置パネル２５ａと支柱２７の上端は、天板２６にネジ止めされる。   As shown in FIGS. 1, 6, and 7, the outdoor unit 1 includes a rectangular parallelepiped housing 2. The outer shell of the housing 2 includes a bottom plate 21, a front panel 22, a side panel 25 that also serves as a part of a rear panel, a top plate 26, and a support 27. The front panel 22 includes a blowout panel 22a and a service panel 22b, and the side panel 25 includes a connection port arrangement panel 25a and a conduit panel 25b. The blow-out panel 22a, the service panel 22b, a part of the connection port arrangement panel 25a, the conduit panel 25b, and the lower ends of the columns 27 are screwed to the bottom plate 21. The blow-out panel 22a, the service panel 22b, the connection port arrangement panel 25a, and the upper ends of the columns 27 are screwed to the top plate 26.

なお、以下の説明では、室外機１の筐体２において、図１で前面パネル２２が配置された方を前面、その反対側を背面とし、前面パネル２２を正視したときにサービスパネル２２ｂが配置された方を右側面、その反対側を左側面として説明する。また、以下の説明では、筐体２の前面パネル２２を前面側から見た左右方向Ｘを「筐体２の横方向（左右方向）」、前後方向Ｙを「筐体２の前後方向」、方向Ｘおよび方向Ｙに直交する方向Ｚを「筐体２の高さ方向（上下方向）」と定義し、Ｘ１を左方、Ｘ２を右方、Ｙ１を前方、Ｙ２を後方、Ｚ１を上方、Ｚ２を下方と定義して説明する。   In the following description, in the housing 2 of the outdoor unit 1, the side where the front panel 22 is arranged in FIG. 1 is the front side, and the opposite side is the rear side, and the service panel 22b is arranged when the front panel 22 is directly viewed. The side that is formed is the right side surface, and the opposite side is the left side surface. In the following description, the left-right direction X when the front panel 22 of the housing 2 is viewed from the front side is “lateral direction (horizontal direction) of the housing 2”, and the front-rear direction Y is “front-back direction of the housing 2”. The direction Z orthogonal to the direction X and the direction Y is defined as "height direction of the housing 2 (vertical direction)", X1 is left, X2 is right, Y1 is front, Y2 is rear, Z1 is upward, Z2 will be described as being defined as downward.

筐体２の内部は、図５乃至図７に示すように、仕切板２０によって熱交換器室ＨＣと機械室ＭＣに区画されている。熱交換器室ＨＣには、室外熱交換器Ｅと送風ファンＦが配置されている。室外熱交換器Ｅは上面から見て略Ｌ字形状に形成され、筐体２の左側面から背面に沿って配置されている。送風ファンＦはモータＭに取付けられ、このモータＭが室外熱交換器Ｅに固定されたモータ支持体ＭＦに取付けられることにより、送風ファンＦが室外熱交換器Ｅの前方に配置されている。機械室ＭＣには、図５に示すように、圧縮機Ｃや電装品ユニットＵが配置されている。機械室ＭＣの上部に電装品ユニットＵが配置されており、機械室ＭＣの下部に圧縮機Ｃが配置されている。室外熱交換器Ｅと圧縮機Ｃと後述する膨張弁４６Ｌと室外熱交換器Ｅにおける冷媒の流れ方向を切換える図示しない四方弁が液冷媒配管３Ｌとガス冷媒配管３Ｇで相互に接続されて、室外機冷媒回路を構成している。   As shown in FIGS. 5 to 7, the inside of the housing 2 is divided into a heat exchanger chamber HC and a machine chamber MC by a partition plate 20. An outdoor heat exchanger E and a blower fan F are arranged in the heat exchanger chamber HC. The outdoor heat exchanger E is formed in a substantially L shape when viewed from the top surface, and is arranged along the left side surface to the back surface of the housing 2. The blower fan F is attached to the motor M, and the motor M is attached to the motor support MF fixed to the outdoor heat exchanger E, whereby the blower fan F is arranged in front of the outdoor heat exchanger E. As shown in FIG. 5, a compressor C and an electric component unit U are arranged in the machine room MC. An electric component unit U is arranged above the machine room MC, and a compressor C is arranged below the machine room MC. The outdoor heat exchanger E, the compressor C, an expansion valve 46L described later, and a not-shown four-way valve that switches the flow direction of the refrigerant in the outdoor heat exchanger E are connected to each other by a liquid refrigerant pipe 3L and a gas refrigerant pipe 3G, and It constitutes a machine refrigerant circuit.

底板２１は、略長方形状の鋼板であり、図３に示すように、その周縁部は上方に略直角に折り曲げられたフランジを有する。また、底板２１の下面には、筐体２の前後方向（Ｙ方向）に延び室外機１を地面等に設置するための脚部２１ａが左右に設けられている。   The bottom plate 21 is a substantially rectangular steel plate, and as shown in FIG. 3, its peripheral portion has a flange bent upward at a substantially right angle. Further, on the lower surface of the bottom plate 21, leg portions 21a extending in the front-rear direction (Y direction) of the housing 2 and for installing the outdoor unit 1 on the ground or the like are provided on the left and right.

前面パネル２２の吹出パネル２２ａは、鋼板を加工したものであり、図１、図６、図７に示すように、熱交換器室ＨＣの前面側を覆うように配置されている。吹出パネル２２ａには、送風ファンＦと対応する位置に、送風ファンＦにより熱交換器室ＨＣ内に吸込まれた空気を外部へ吹出すための格子状の開口が形成された吹出グリル２２１が設けられている。   The blowout panel 22a of the front panel 22 is formed by processing a steel plate, and is arranged so as to cover the front side of the heat exchanger chamber HC, as shown in FIGS. 1, 6, and 7. The blowout panel 22a is provided with a blowout grill 221 at a position corresponding to the blower fan F, in which a lattice-like opening for blowing out the air sucked into the heat exchanger chamber HC by the blower fan F to the outside is formed. Has been.

前面パネル２２のサービスパネル２２ｂは、鋼板を加工したものであり、機械室ＭＣの前面側を覆うように配置されている。サービスパネル２２ｂは、室外機１のメンテナンス作業時に機械室ＭＣにアクセスしやすいように、着脱可能に取付けられている。   The service panel 22b of the front panel 22 is formed by processing a steel plate and is arranged so as to cover the front side of the machine room MC. The service panel 22b is detachably attached so that the machine room MC can be easily accessed during maintenance work of the outdoor unit 1.

側面パネル２５の接続ポート配置パネル２５ａは、図６や図７に示すように、鋼板を上面から見て略Ｌ字形状に折り曲げて形成され、筐体２の右側面の略全体（下部を除く）と背面の室外熱交換器Ｅの右端までを覆うように配置されている。接続ポート配置パネル２５ａの右側外方には、後述する接続ポート４が配置されている。接続ポート配置パネル２５ａの背面側下方には、図４に示すように、矩形状に形成されたケーブル配管接続口が設けられ、このケーブル配管接続口から引出される電装品ユニットＵと室内機を接続する電源線や電気信号線などのケーブルＬがケーブル配管２８１、２８１ａに挿入されている。   As shown in FIG. 6 and FIG. 7, the connection port arrangement panel 25a of the side panel 25 is formed by bending a steel plate into a substantially L-shape when viewed from above, and substantially the entire right side surface of the housing 2 (excluding the lower portion). ) And the rear end of the outdoor heat exchanger E up to the right end. A connection port 4 described later is arranged outside the right side of the connection port arrangement panel 25a. As shown in FIG. 4, a cable pipe connection port formed in a rectangular shape is provided below the rear side of the connection port arrangement panel 25a, and the electrical component unit U drawn out from this cable pipe connection port and the indoor unit are connected to each other. A cable L such as a power supply line or an electric signal line to be connected is inserted into the cable pipes 281 and 281a.

側面パネル２５のコンジットパネル２５ｂは、図７に示すように、板状に形成された鋼板であり、接続ポート配置パネル２５ａの下方に配置されて筐体２の右側面の下部を覆っている。   As shown in FIG. 7, the conduit panel 25b of the side panel 25 is a plate-shaped steel plate, is arranged below the connection port arrangement panel 25a, and covers the lower part of the right side surface of the housing 2.

接続ポート配置パネル２５ａの下端側には、図１乃至図３および図７に示すように、中央よりも前方側（Ｙ１方向）の位置に、接続ポート配置パネル２５ａの下端から上方（Ｚ１方向）に向かって略四角形状に切欠かれた切欠部２５２が形成されている。接続ポート配置パネル２５ａとコンジットパネル２５ｂを底板２１と天板２６に取付けると、切欠部２５２とコンジットパネル２５ｂの上端に配管引出口Ｈが形成される。この配管引出口Ｈを介して、ガス冷媒配管３Ｇと液冷媒配管３Ｌが機械室ＭＣの内部から筐体２の外側に引き出されている。   On the lower end side of the connection port arrangement panel 25a, as shown in FIGS. 1 to 3 and 7, at a position forward of the center (Y1 direction), above the lower end of the connection port arrangement panel 25a (Z1 direction). A notched portion 252 is formed in a substantially quadrangular shape toward the front. When the connection port arrangement panel 25a and the conduit panel 25b are attached to the bottom plate 21 and the top plate 26, the pipe outlet H is formed at the notch 252 and the upper end of the conduit panel 25b. Through this pipe outlet H, the gas refrigerant pipe 3G and the liquid refrigerant pipe 3L are drawn out from the inside of the machine room MC to the outside of the housing 2.

天板２６は、略長方形状の鋼板であり、図１及び図２に示すように、その周縁部は下方に略直角に折り曲げられたフランジを有する。支柱２７は、断面略Ｌ字状の鋼材であり、図６および図７に示すように、室外機１の左側面と背面の角部に配置されている。
なお、支柱２７と吹出パネル２２ａの左端の間と、支柱２７と接続ポート配置パネル２５ａの背面左端の間は、室外熱交換器Ｅが左側面と背面に向けて露出しており、送風ファンＦにより熱交換器室ＨＣに外気を取り入れるための左側面吸込口および背面吸込口となっている。 The top plate 26 is a substantially rectangular steel plate, and as shown in FIGS. 1 and 2, the peripheral portion thereof has a flange bent downward at a substantially right angle. The column 27 is a steel material having a substantially L-shaped cross section, and is arranged at the corners of the left side surface and the back surface of the outdoor unit 1, as shown in FIGS. 6 and 7.
The outdoor heat exchanger E is exposed toward the left side surface and the back surface between the support 27 and the left end of the blowout panel 22a, and between the support 27 and the rear left end of the connection port arrangement panel 25a. Due to this, there are a left side suction port and a rear side suction port for taking in outside air into the heat exchanger chamber HC.

図１乃至図５および図１０に示すように、室外機１は、接続ポート配置パネル２５ａの右側外方に接続ポート４を備えている。接続ポート４は、６台の室内機に接続された各ガス管（図示省略）をガス冷媒配管３Ｇに接続するとともに、６台の室内機に接続された各液管（図示省略）を液冷媒配管３Ｌに接続するものである。接続ポート４は、６個のガス管接続部４２Ｇと、６個の液管接続部４２Ｌと、６本のガス分岐管４３Ｇと、６本の液分岐管４３Ｌと、６個の膨張弁４６Ｌと、１個の取付部材４７と、６枚の規制プレート４８を有している。   As shown in FIGS. 1 to 5 and 10, the outdoor unit 1 includes the connection port 4 on the right outside of the connection port arrangement panel 25a. The connection port 4 connects each gas pipe (not shown) connected to the six indoor units to the gas refrigerant pipe 3G, and connects each liquid pipe (not shown) connected to the six indoor units to the liquid refrigerant. It is connected to the pipe 3L. The connection port 4 includes six gas pipe connecting portions 42G, six liquid pipe connecting portions 42L, six gas branch pipes 43G, six liquid branch pipes 43L, and six expansion valves 46L. It has one mounting member 47 and six regulating plates 48.

各ガス管接続部４２Ｇは、真鍮を切削加工して形成されており、図４および図１１に示すように、ガス側ユニオン４５Ｇと、ガス側接続部４４Ｇを有する。ガス側ユニオン４５Ｇは、主軸部４５１Ｇとネジ部４５２Ｇを有する。主軸部４５１Ｇは、外形の断面形状が正六角形状とされ内部に図示しない挿通路を有して筒状に形成される。主軸部４５１Ｇの一端は、ガス分岐管４３Ｇが接続できるように形成され、主軸部４５１Ｇの他端側の外周にネジ部４５２Ｇが形成される。このネジ部４５２Ｇにガス側フレアーナット４４Ｇａが螺合されてガス側接続部４４Ｇが構成される。   Each gas pipe connecting portion 42G is formed by cutting brass and has a gas side union 45G and a gas side connecting portion 44G, as shown in FIGS. 4 and 11. The gas side union 45G has a main shaft portion 451G and a screw portion 452G. The main shaft portion 451G has a regular hexagonal cross-section, and has a cylindrical shape with an insertion passage (not shown) inside. One end of the main shaft portion 451G is formed so that the gas branch pipe 43G can be connected thereto, and a screw portion 452G is formed on the outer periphery of the other end side of the main shaft portion 451G. A gas-side flare nut 44Ga is screwed into the screw portion 452G to form a gas-side connection portion 44G.

主軸部４５１Ｇのガス分岐管４３Ｇが接続される側に、主軸部４５１Ｇの一部を所定の幅で円環状に切削して溝部４５３Ｇが設けられる。溝部４５３Ｇには、後述する規制プレート４８のガス側切欠部４８２Ｇに設けられるガス側溝嵌合リブ４８４Ｇが嵌合する。   A groove portion 453G is provided by cutting a part of the main shaft portion 451G into an annular shape with a predetermined width on the side of the main shaft portion 451G to which the gas branch pipe 43G is connected. A gas side groove fitting rib 484G provided in a gas side cutout portion 482G of the regulation plate 48 described later fits into the groove portion 453G.

各ガス管接続部４２Ｇは、主軸部４５１Ｇが後述するユニオンプレート４７２に設けられたガス側挿通孔４７２Ｇに、ガス側接続部４４Ｇが筐体２の後方（Ｙ２方向）に向けて挿入され、規制プレート４８によってユニオンプレート４７２に固定される。また、各主軸部４５１Ｇに溶接等によって各ガス分岐管４３Ｇが接続されるとともに、各ネジ部４５２Ｇに各ガス管を当ててガス側フレアーナット４４Ｇａを締め付けることで各ガス管が各ガス側接続部４４Ｇに接続されて、各ガス分岐管４３Ｇと各ガス管が各主軸部４５１Ｇの挿通路を介して連通する。   In each of the gas pipe connecting portions 42G, the main shaft portion 451G is inserted into a gas side inserting hole 472G provided in a union plate 472, which will be described later, and the gas side connecting portion 44G is inserted toward the rear side (Y2 direction) of the housing 2 and regulated. It is fixed to the union plate 472 by the plate 48. Further, each gas branch pipe 43G is connected to each main shaft portion 451G by welding or the like, and each gas pipe is applied to each screw portion 452G to tighten the gas side flare nut 44Ga. It is connected to 44G, and each gas branch pipe 43G and each gas pipe are connected via the insertion passage of each main shaft part 451G.

各液管接続部４２Ｌは、真鍮を切削加工して形成されており、図４および図１１に示すように、液側ユニオン４５Ｌと、液側接続部４４Ｌを有する。液側ユニオン４５Ｌは、主軸部４５１Ｌとネジ部４５２Ｌを有する。主軸部４５１Ｌは、外形の断面形状が正六角形状とされ、内部に図示しない挿通路を有して筒状に形成される。主軸部４５１Ｌの一端は、液分岐管４３Ｌが接続できるように形成され、主軸部４５１Ｌの他端側の外周にネジ部４５２Ｌが形成される。このネジ部４５２Ｌに液側フレアーナット４４Ｌａが螺合されて液側接続部４４Ｌが構成される。   Each liquid pipe connecting portion 42L is formed by cutting brass and has a liquid side union 45L and a liquid side connecting portion 44L as shown in FIGS. 4 and 11. The liquid side union 45L has a main shaft portion 451L and a screw portion 452L. The main shaft portion 451L has a regular hexagonal cross-sectional shape, and has a cylindrical shape having an insertion passage (not shown) therein. One end of the main shaft portion 451L is formed so that the liquid branch pipe 43L can be connected thereto, and a screw portion 452L is formed on the outer periphery of the other end side of the main shaft portion 451L. The liquid-side flare nut 44La is screwed into the screw portion 452L to form the liquid-side connection portion 44L.

主軸部４５１Ｌの液分岐管４３Ｌが接続される側に、主軸部４５１Ｌの一部を所定の幅で円環状に切削して溝部４５３Ｌが設けられる。溝部４５３Ｌには、後述する規制プレート４８の液側切欠部４８２Ｌに設けられる液側溝嵌合リブ４８４Ｌが嵌合する。   A groove 453L is provided by cutting a part of the main shaft 451L into an annular shape with a predetermined width on the side of the main shaft 451L to which the liquid branch pipe 43L is connected. A liquid side groove fitting rib 484L provided in a liquid side cutout portion 482L of the regulation plate 48 described later fits into the groove portion 453L.

各液管接続部４２Ｌは、主軸部４５１Ｌが後述するユニオンプレート４７２に設けられた液側挿通孔４７２Ｌに、液側接続部４４Ｌが筐体２の後方（Ｙ２方向）に向けて挿入され、規制プレート４８によってユニオンプレート４７２に固定される。また、各主軸部４５１Ｌに溶接等によって各液分岐管４３Ｌが接続されるとともに、各ネジ部４５２Ｌに各液管を当てて液側フレアーナット４４Ｌａを締め付けることで各液管が各液側接続部４４Ｌに接続されて、各液分岐管４３Ｌと各液管が各主軸部４５１Ｌの挿通路を介して連通する。   In each liquid pipe connecting portion 42L, the liquid side connecting portion 44L is inserted toward a rear side (Y2 direction) of the housing 2 in a liquid side insertion hole 472L provided in a union plate 472, which has a main shaft portion 451L described later, and is regulated. It is fixed to the union plate 472 by the plate 48. Further, each liquid branch pipe 43L is connected to each main shaft portion 451L by welding or the like, and each liquid pipe is applied to each screw portion 452L and the liquid side flare nut 44La is tightened to connect each liquid pipe to each liquid side connection portion. The liquid branch pipes 43L and the liquid pipes are connected to each other via the insertion passages of the main shaft portions 451L.

取付部材４７は、図２、図４および図９に示すように、長方形状の鋼板を略Ｌ字状に折り曲げて形成される。取付部材４７は、ネジ止めプレート４７１とユニオンプレート４７２を有する。   As shown in FIGS. 2, 4, and 9, the attachment member 47 is formed by bending a rectangular steel plate into a substantially L shape. The attachment member 47 has a screw plate 471 and a union plate 472.

ネジ止めプレート４７１は、縦長形状に形成される。ネジ止めプレート４７１を接続ポート配置パネル２５ａにネジ止めすることで、図２に示すように、取付部材４７が筐体２の右側面における前後方向の中央より後方側に寄った箇所に配置される。   The screw plate 471 is formed in a vertically long shape. By screwing the screwing plate 471 to the connection port arrangement panel 25a, the mounting member 47 is arranged at a position closer to the rear side than the center in the front-rear direction on the right side surface of the housing 2, as shown in FIG. ..

ユニオンプレート４７２は、ネジ止めプレート４７１の前方の長辺側端部からネジ止めプレート４７１に対し略直角の方向に伸びる縦長形状に形成される。ユニオンプレート４７２は、ガス管接続部４２Ｇと同数のガス側挿通孔４７２Ｇと、液管接続部４２Ｌと同数の液側挿通孔４７２Ｌと、ガス側挿通孔４７２Ｇの数と液側挿通孔４７２Ｌの数を足した個数の位置決め突起４７２ｂを有する。図９に示すように、６個のガス側挿通孔４７２Ｇと６個の液側挿通孔４７２Ｌは、ユニオンプレート４７２の上から下に向かって液側挿通孔４７２Ｌ、ガス側挿通孔４７２Ｇの順で一列に配置される。ガス側挿通孔４７２Ｇは、ガス側ユニオン４５Ｇの主軸部４５１Ｇが挿通可能な正六角形状の挿通孔であり、液側挿通孔４７２Ｌは、液側ユニオン４５Ｌの主軸部４５１Ｌが挿通可能な正六角形状の挿通孔である。また、位置決め突起４７２ｂは、後述する規制プレート４８をユニオンプレート４７２に装着する際に、規制プレート４８を位置決めするために設けられる。図１１に示すように、位置決め突起４７２ｂは、液側挿通孔４７２Ｌとガス側挿通孔４７２Ｇの左側にユニオンプレート４７２の前面４７２ａから前方へ突出するように形成される。   The union plate 472 is formed in a vertically elongated shape extending from the front long side end of the screw fixing plate 471 in a direction substantially perpendicular to the screw fixing plate 471. The union plate 472 has the same number of gas side insertion holes 472G as the gas pipe connection portions 42G, the same number of liquid side insertion holes 472L as the liquid pipe connection portions 42L, the number of gas side insertion holes 472G, and the number of liquid side insertion holes 472L. The number of positioning protrusions 472b is equal to As shown in FIG. 9, the six gas-side insertion holes 472G and the six liquid-side insertion holes 472L are arranged in the order of the liquid-side insertion hole 472L and the gas-side insertion hole 472G from the top to the bottom of the union plate 472. They are arranged in a line. The gas side insertion hole 472G is a regular hexagonal insertion hole into which the main shaft portion 451G of the gas side union 45G can be inserted, and the liquid side insertion hole 472L is a regular hexagonal shape into which the main shaft portion 451L of the liquid side union 45L can be inserted. Is a through hole. The positioning protrusion 472b is provided to position the regulation plate 48 when the regulation plate 48, which will be described later, is mounted on the union plate 472. As shown in FIG. 11, the positioning protrusion 472b is formed on the left side of the liquid side insertion hole 472L and the gas side insertion hole 472G so as to project forward from the front surface 472a of the union plate 472.

ユニオンプレート４７２は、ネジ止めプレート４７１に対して略直角に配置されるので、ユニオンプレート４７２は、筐体２の前後方向に直交する配置となる。そして、前述したように、ユニオンプレート４７２にガス管接続部４２Ｇと液管接続部４２Ｌを取付けると、ガス側接続部４４Ｇと液側接続部４４Ｌが筐体２の後方に向けて突出し、ガス管接続部４２Ｇと液管接続部４２Ｌの軸方向が筐体２の前後方向に一致する。   Since the union plate 472 is arranged substantially at right angles to the screw plate 471, the union plate 472 is arranged orthogonal to the front-back direction of the housing 2. Then, as described above, when the gas pipe connecting portion 42G and the liquid pipe connecting portion 42L are attached to the union plate 472, the gas side connecting portion 44G and the liquid side connecting portion 44L protrude toward the rear of the housing 2 to form the gas pipe. The axial direction of the connecting portion 42G and the liquid pipe connecting portion 42L coincides with the front-back direction of the housing 2.

ガスヘッダ部３１Ｇは、図２乃至図５に示すように、配管引出口Ｈから筐体２の外側に引出されたガス冷媒配管３Ｇを上方に折り曲げて形成されている。ガスヘッダ部３１Ｇには、各ガス分岐管４３Ｇの一端が接続され、各ガス分岐管４３Ｇの他端は前述したように各ガス管接続部４２Ｇに接続されている。これにより、各ガス分岐管４３Ｇは、ガスヘッダ部３１Ｇの上下方向（Ｚ方向）に沿って、各ガス管接続部４２Ｇの間隔に対応する間隔をもって配置される。また、図２および図４に示すように、ガスヘッダ部３１Ｇにおける最上部に配置されるガス分岐管４３Ｇのガスヘッダ部３１Ｇとの接続部から上端部までがガス側延伸部３２Ｇとされる。   As shown in FIGS. 2 to 5, the gas header portion 31G is formed by bending upward a gas refrigerant pipe 3G drawn from the pipe outlet H to the outside of the housing 2. One end of each gas branch pipe 43G is connected to the gas header portion 31G, and the other end of each gas branch pipe 43G is connected to each gas pipe connection portion 42G as described above. As a result, the gas branch pipes 43G are arranged along the vertical direction (Z direction) of the gas header portion 31G at intervals corresponding to the intervals of the gas pipe connection portions 42G. Further, as shown in FIG. 2 and FIG. 4, the gas side extending portion 32G extends from the connecting portion of the gas branch pipe 43G arranged at the uppermost portion of the gas header portion 31G to the gas header portion 31G to the upper end portion.

液ヘッダ部３１Ｌは、図２乃至図５に示すように、配管引出口Ｈから筐体２の外側に引出された液冷媒配管３Ｌを上方に折り曲げて形成されている。液ヘッダ部３１Ｌには、各液分岐管４３Ｌの一端が接続され、各液分岐管４３Ｌの他端は前述したように各液管接続部４２Ｌに接続されている。これにより、各液分岐管４３Ｌは、液ヘッダ部３１Ｌの上下方向に沿って、各液管接続部４２Ｌの間隔に対応する間隔をもって配置される。また、図２および図４に示すように、液ヘッダ部３１Ｌにおける最上部に配置される液分岐管４３Ｌの液ヘッダ部３１Ｌとの接続部から上端部までが液側延伸部３２Ｌとされる。液側延伸部３２Ｌには、液側延伸部３２Ｌの上部をガス側延伸部３２Ｇに沿うようにクランク形状に折り曲げられて形成された固定部３２１Ｌが設けられる。   As shown in FIGS. 2 to 5, the liquid header portion 31L is formed by bending the liquid refrigerant pipe 3L drawn out from the pipe outlet H to the outside of the housing 2 upward. One end of each liquid branch pipe 43L is connected to the liquid header portion 31L, and the other end of each liquid branch pipe 43L is connected to each liquid pipe connection portion 42L as described above. As a result, the liquid branch pipes 43L are arranged at intervals corresponding to the intervals of the liquid pipe connection portions 42L along the vertical direction of the liquid header portion 31L. Further, as shown in FIGS. 2 and 4, the liquid side extending portion 32L extends from the connecting portion of the liquid branch pipe 43L arranged at the uppermost part of the liquid header portion 31L to the liquid header portion 31L to the upper end portion. The liquid-side stretched portion 32L is provided with a fixed portion 321L formed by bending the upper portion of the liquid-side stretched portion 32L into a crank shape along the gas-side stretched portion 32G.

各膨張弁４６Ｌは、各液分岐管４３Ｌに組み付けられている。各膨張弁４６Ｌは、組み付けられた各液分岐管４３Ｌを流れる冷媒量、つまり、各室内機に流れる冷媒量を調整するものである。   Each expansion valve 46L is assembled to each liquid branch pipe 43L. Each expansion valve 46L adjusts the amount of refrigerant flowing through each of the assembled liquid branch pipes 43L, that is, the amount of refrigerant flowing into each indoor unit.

以上説明した接続ポート４における、ガスヘッダ部３１Ｇと液ヘッダ部３１Ｌと膨張弁４６Ｌの位置について、図２乃至図７を用いて説明する。ガスヘッダ部３１Ｇは、図２乃至図７に示すように、液ヘッダ部３１Ｌよりも右方（Ｘ２方向）かつ前方（Ｙ１方向）に配置されている。つまり、ガスヘッダ部３１Ｇは、図６に示すように、液ヘッダ部３１Ｌの右斜め前方に配置されている。   The positions of the gas header portion 31G, the liquid header portion 31L, and the expansion valve 46L in the connection port 4 described above will be described with reference to FIGS. 2 to 7. As shown in FIGS. 2 to 7, the gas header portion 31G is arranged to the right (X2 direction) and front (Y1 direction) of the liquid header portion 31L. That is, as shown in FIG. 6, the gas header portion 31G is disposed diagonally to the right front of the liquid header portion 31L.

図６および図７に示すように、各ガス分岐管４３Ｇは、ガス管接続部４２Ｇの軸方向に対して右方に、つまり、接続ポート配置パネル２５ａから離れる方向に折り曲げられている。具体的には、各ガス分岐管４３Ｇは、ガス管接続部４２Ｇに接続される他端から右方に略への字状に折り曲げられている。このように折り曲げられた各ガス分岐管４３Ｇの一端にガスヘッダ部３１Ｇが接続されることで、上記のようなガスヘッダ部３１Ｇの配置となる。なお、各ガス分岐管４３Ｇの折り曲げられた形状は、これに限らず、上記の位置にガスヘッダ部３１Ｇが配置されるように折り曲げられていればよい。   As shown in FIGS. 6 and 7, each of the gas branch pipes 43G is bent rightward with respect to the axial direction of the gas pipe connecting portion 42G, that is, in a direction away from the connection port arrangement panel 25a. Specifically, each of the gas branch pipes 43G is bent from the other end connected to the gas pipe connecting portion 42G to the right in a substantially V shape. By connecting the gas header portion 31G to one end of each of the gas branch pipes 43G bent in this way, the gas header portion 31G is arranged as described above. The bent shape of each gas branch pipe 43G is not limited to this, and may be any shape as long as the gas header portion 31G is arranged at the above position.

以上のようなガスヘッダ部３１Ｇと液ヘッダ部３１Ｌの配置とすることにより、図６に示すように、ガスヘッダ部３１Ｇより接続ポート配置パネル２５ａ側かつ液ヘッダ部３１Ｌの前方側に空間ａが形成される。   By arranging the gas header portion 31G and the liquid header portion 31L as described above, as shown in FIG. 6, a space a is formed on the connection port arrangement panel 25a side of the gas header portion 31G and on the front side of the liquid header portion 31L. It

上記空間ａには、各液分岐管４３Ｌに組み付けられた膨張弁４６Ｌが配置される。各液分岐管４３Ｌは前述したように一端が液ヘッダ部３１Ｌに接続され他端が液管接続部４２Ｌに接続されているが、その形状は図２に破線で示すように略カタカナのクの字形状に形成されている。また、各液分岐管４３Ｌは、液ヘッダ部３１Ｌ側の接続部と液管接続部４２Ｌ側の接続部を基端として、所定の角度θで上方に折り曲げられている。そして、膨張弁４６Ｌは、各液分岐管４３Ｌにおける、液ヘッダ部３１Ｌ側の接続部および液管接続部４２Ｌ側の接続部から一番遠い箇所に組み込まれる。つまり、図２に示すように、各液分岐管４３Ｌが筐体２の底板２１に対して所定の角度θで上方に折り曲げることにより形成された折り曲げ点４３Ｌａよりも上部に各膨張弁４６が配置される。なお、この角度θは、各膨張弁４６Ｌが空間ａに配置され、かつ、各々の膨張弁４６Ｌが、当該膨張弁４６Ｌの上側（Ｚ１方向）に配置される膨張弁４６Ｌが組み付けられる液分岐管４３Ｌに干渉しない角度であればよい。また、各液分岐管４３Ｌの折り曲げられた形状は、これに限らず、膨張弁４６Ｌが空間ａに配置されるように折り曲げられていればよい。   An expansion valve 46L assembled to each liquid branch pipe 43L is arranged in the space a. As described above, each liquid branch pipe 43L has one end connected to the liquid header portion 31L and the other end connected to the liquid pipe connection portion 42L, but its shape is substantially katakana as shown by the broken line in FIG. It is formed in a letter shape. Further, each liquid branch pipe 43L is bent upward at a predetermined angle θ with the connecting portion on the liquid header portion 31L side and the connecting portion on the liquid pipe connecting portion 42L side as the base ends. Then, the expansion valve 46L is incorporated in each of the liquid branch pipes 43L at a position farthest from the connection portion on the liquid header portion 31L side and the connection portion on the liquid pipe connection portion 42L side. That is, as shown in FIG. 2, each expansion valve 46 is arranged above a bending point 43La formed by bending each liquid branch pipe 43L upward with respect to the bottom plate 21 of the housing 2 at a predetermined angle θ. To be done. Note that this angle θ is a liquid branch pipe in which the expansion valves 46L are arranged in the space a, and the expansion valves 46L are arranged above the expansion valves 46L (Z1 direction). Any angle may be used as long as it does not interfere with 43L. Further, the bent shape of each liquid branch pipe 43L is not limited to this, and may be bent so that the expansion valve 46L is arranged in the space a.

以上説明したように、本実施形態の室外機１によれば、複数台の室内機（本実施形態では６台）を接続するために、接続ポート４に室内機の台数に応じた数の液管接続部４２Ｌとガス管接続部４２Ｇ（本実施形態では６個ずつ）を設ける場合、液管接続部４２Ｌとガス管接続部４２Ｇを接続ポート配置パネル２５ａに沿って上下方向にかつ交互に一列に並べて配置している。この結果、液管接続部４２Ｌとガス管接続部４２Ｇを横に並べて配置する場合と比べて接続ポート４の左右方向の寸法を小さくすることができる。   As described above, according to the outdoor unit 1 of the present embodiment, in order to connect a plurality of indoor units (6 units in the present embodiment), the number of liquids corresponding to the number of indoor units is connected to the connection port 4. When providing the pipe connecting portions 42L and the gas pipe connecting portions 42G (in the present embodiment, six pieces each), the liquid pipe connecting portions 42L and the gas pipe connecting portions 42G are arranged in a row vertically and alternately along the connection port arrangement panel 25a. Are arranged side by side. As a result, the horizontal dimension of the connection port 4 can be made smaller than in the case where the liquid pipe connection portion 42L and the gas pipe connection portion 42G are arranged side by side.

また、本実施形態の室外機１によれば、ガスヘッダ部３１Ｇを液ヘッダ部３１Ｌの右斜め前方に配置することにより、ガスヘッダ部３１Ｇより接続ポート配置パネル２５ａ側、かつ、液ヘッダ部３１Ｌの前方側に空間ａが形成され、この空間ａに各膨張弁４６Ｌを配置している。この結果、接続ポート４の前後方向の寸法を小さくすることができる。   Further, according to the outdoor unit 1 of the present embodiment, by disposing the gas header portion 31G obliquely to the right of the liquid header portion 31L, the connection port arrangement panel 25a side of the gas header portion 31G and the front of the liquid header portion 31L. A space a is formed on the side, and each expansion valve 46L is arranged in this space a. As a result, the dimension of the connection port 4 in the front-rear direction can be reduced.

さらに、本実施形態の室外機１によれば、各膨張弁４６Ｌが組み付けられる各液分岐管４３Ｌが、筐体２の底板２１に対して所定の角度θで上方に折り曲げられることにより、各膨張弁４６Ｌを斜めに配置している。この結果、各膨張弁４６Ｌを底板２１に対して垂直に配置する場合と比べて接続ポート４の高さ方向の寸法を小さくすることができる。   Furthermore, according to the outdoor unit 1 of the present embodiment, the respective liquid branch pipes 43L to which the respective expansion valves 46L are assembled are bent upward at a predetermined angle θ with respect to the bottom plate 21 of the housing 2, so that the respective expansions are expanded. The valve 46L is arranged diagonally. As a result, the dimension in the height direction of the connection port 4 can be made smaller than in the case where each expansion valve 46L is arranged vertically to the bottom plate 21.

以上のことから、本実施形態の室外機１では、接続ポート４の上下／左右／前後方向の寸法を小さくすることができるので、接続ポート４を覆う後述するカバー部材６の高さ方向の寸法ｈが筐体２の高さ方向の寸法より大きくならず、図６および図８に示すカバー部材６の高さ方向の寸法ｈと前後方向の寸法ｄと横方向の寸法ｗを小さくすることができる。この結果、複数台の室内機を接続する室外機１の大きさを小さくすることができる。   From the above, in the outdoor unit 1 of the present embodiment, the size of the connection port 4 in the vertical / horizontal / front-back directions can be reduced, and therefore the size of the cover member 6 covering the connection port 4 in the height direction, which will be described later. h does not become larger than the size of the housing 2 in the height direction, and the size h of the cover member 6 shown in FIGS. 6 and 8 in the height direction, the size d of the front-rear direction, and the size w of the lateral direction can be reduced. it can. As a result, the size of the outdoor unit 1 that connects a plurality of indoor units can be reduced.

次に、ガス側延伸部３２Ｇへの液側延伸部３２Ｌの固定について、図２および図４を用いて説明する。液側延伸部３２Ｌの上部をクランク形状に折り曲げて形成された固定部３２１Ｌには、筒状の緩衝部材３３が嵌め込まれている。固定部３２１Ｌは緩衝部材３３を介してガス側延伸部３２Ｇに当てられ、バインダ等（図示省略）によって緩衝部材３３とガス側延伸部３２Ｇを結束して纏めることで、ガス側延伸部３２Ｇに液側延伸部３２Ｌが固定される。緩衝部材３３は、例えば、硬質ゴム等の熱伝導を遮断し、かつ、振動を吸収する材料が用いられる。なお、液側延伸部３２Ｌの折り曲げ形状は、クランク形状に限定されず、ガス側延伸部３２Ｇに沿うように折り曲げられていれば、それ以外の形状であってもよい。   Next, fixing the liquid-side stretched portion 32L to the gas-side stretched portion 32G will be described with reference to FIGS. 2 and 4. A tubular cushioning member 33 is fitted into a fixed portion 321L formed by bending the upper portion of the liquid side extending portion 32L into a crank shape. The fixing portion 321L is applied to the gas-side extending portion 32G via the buffer member 33, and the buffer member 33 and the gas-side extending portion 32G are bound together by a binder or the like (not shown) so that the gas-side extending portion 32G is exposed to liquid. The side extending portion 32L is fixed. The cushioning member 33 is made of, for example, a material such as hard rubber that blocks heat conduction and absorbs vibration. The bent shape of the liquid-side stretched portion 32L is not limited to the crank shape, and may be any other shape as long as it is bent along the gas-side stretched portion 32G.

室外機１に接続される室内機の台数（本実施形態では６台）に応じた個数の液管接続部４２Ｌを有する接続ポート４を設ける場合、液ヘッダ部３１Ｌを最上位に配置される液管接続部４２Ｌの位置まで延伸する必要がある。一般的に、ガスヘッダ部３１Ｇと比べて液ヘッダ部３１Ｌの方が肉厚が薄く内径が小さいため、液ヘッダ部３１Ｌは、ガスヘッダ部３１Ｇと比べて室外機１の振動や落下などにより加えられる衝撃力に対する強度が不足する。しかし、本実施形態の室外機１では、液ヘッダ部３１Ｌに固定部３２１Ｌを有する液側延伸部３２Ｌを設けるとともに、ガスヘッダ部３１Ｇにガス側延伸部３２Ｇを設け、ガス側延伸部３２Ｇと液側延伸部３２Ｌの固定部３２１Ｌを緩衝部材３３を介して固定することにより、液ヘッダ部３１Ｌの室外機１の振動や落下などにより加えられる衝撃力に対する強度を確保することができる。   When the connection port 4 having the number of the liquid pipe connection portions 42L corresponding to the number of indoor units (six in this embodiment) connected to the outdoor unit 1 is provided, the liquid header portion 31L is placed at the uppermost position. It is necessary to extend to the position of the pipe connecting portion 42L. In general, the liquid header portion 31L has a smaller wall thickness and a smaller inner diameter than the gas header portion 31G. Therefore, the liquid header portion 31L is more likely to be impacted by vibration or fall of the outdoor unit 1 than the gas header portion 31G. Insufficient strength against force. However, in the outdoor unit 1 of this embodiment, the liquid header portion 31L is provided with the liquid side extending portion 32L having the fixing portion 321L, the gas header portion 31G is provided with the gas side extending portion 32G, and the gas side extending portion 32G and the liquid side are provided. By fixing the fixing portion 321L of the extending portion 32L via the cushioning member 33, it is possible to secure the strength of the liquid header portion 31L against an impact force applied by vibration or dropping of the outdoor unit 1.

なお、本実施形態の室外機１では、液ヘッダ部３１Ｌの液側延伸部３２Ｌを折り曲げる代わりに、ガスヘッダ部３１Ｇのガス側延伸部３２Ｇを折り曲げて、ガス側延伸部３２Ｇと液側延伸部３２Ｌを緩衝部材３３を介して固定しても、液ヘッダ部３１Ｌの室外機１の振動や落下などにより加えられる衝撃力に対する強度を確保することができるが、ガスヘッダ部３１Ｇと比べて液ヘッダ部３１Ｌの方が肉厚が薄く内径が小さいため、液ヘッダ部３１Ｌの液側延伸部３２Ｌを折り曲げる方が加工がし易い。また、ガス側延伸部３２Ｇと液側延伸部３２Ｌを緩衝部材３３を介して固定することにより、液ヘッダ部３１Ｌに限らず、ガスヘッダ部３１Ｇの室外機１の振動や落下などにより加えられる衝撃力に対する強度も確保することができる。   In the outdoor unit 1 of the present embodiment, instead of bending the liquid side extending portion 32L of the liquid header portion 31L, the gas side extending portion 32G of the gas header portion 31G is bent, and the gas side extending portion 32G and the liquid side extending portion 32L are bent. Even if the liquid header portion 31L is fixed via the cushioning member 33, the strength of the liquid header portion 31L against the impact force applied by the vibration or the drop of the outdoor unit 1 can be secured, but the liquid header portion 31L is better than the gas header portion 31G. Since the thickness is smaller and the inner diameter is smaller, it is easier to process by bending the liquid side extending portion 32L of the liquid header portion 31L. Further, by fixing the gas-side stretched portion 32G and the liquid-side stretched portion 32L via the cushioning member 33, not only the liquid header portion 31L but also the impact force applied by vibration or drop of the outdoor unit 1 of the gas header portion 31G. It is possible to secure the strength against.

また、緩衝部材３３を液側延伸部３２Ｌに嵌め込む代わりに、ガス側延伸部３２Ｇに嵌め込むようにしてもよい。しかし、本実施形態の室外機１のように、内径が小さい液ヘッダ部３１Ｌの液側延伸部３２Ｌに緩衝部材３３を嵌め込む方が、ガス側延伸部３２Ｇに緩衝部材３３を嵌め込む場合と比べて緩衝部材３３を小さくできるので、緩衝部材３３の材料を節約することができる。さらに、緩衝部材３３をガス側延伸部３２Ｇと液側延伸部３２Ｌの間に介在させることにより、ガス側延伸部３２Ｇと液側延伸部３２Ｌの間で熱交換されるのを防止することができ、かつ、液側延伸部３２Ｌとガス側延伸部３２Ｇの相互に伝わる振動を吸収することができる。   Further, instead of fitting the buffer member 33 into the liquid-side extending portion 32L, it may be fitted into the gas-side extending portion 32G. However, as in the outdoor unit 1 of the present embodiment, fitting the buffer member 33 into the liquid side extending portion 32L of the liquid header portion 31L having a small inner diameter is more suitable than fitting the buffer member 33 into the gas side extending portion 32G. Since the cushioning member 33 can be made smaller, the material of the cushioning member 33 can be saved. Further, by interposing the cushioning member 33 between the gas side extending portion 32G and the liquid side extending portion 32L, it is possible to prevent heat exchange between the gas side extending portion 32G and the liquid side extending portion 32L. In addition, it is possible to absorb the vibration transmitted between the liquid side extending portion 32L and the gas side extending portion 32G.

以上説明してきたガスヘッダ部３１Ｇと液ヘッダ部３１Ｌと接続ポート４は、図１、図５および図６に示すように、カバー部材６で覆われている。このカバー部材６は、図８に示すように、合成樹脂製で箱状に形成されており、接続ポート配置パネル２５ａに取付けられる。カバー部材６が接続ポート配置パネル２５ａに取付けられたときに、接続ポート４の下方に配置される下面部６１には、排水部６２が設けられている。排水部６２は、接続ポート４の空間ａの下方に配置されて、液ヘッダ部３１Ｌや各液分岐管４３Ｌから下方に滴下する結露水を受ける。   The gas header portion 31G, the liquid header portion 31L, and the connection port 4 described above are covered with the cover member 6 as shown in FIGS. 1, 5, and 6. As shown in FIG. 8, the cover member 6 is made of a synthetic resin and has a box shape, and is attached to the connection port arrangement panel 25a. When the cover member 6 is attached to the connection port arrangement panel 25a, the drainage portion 62 is provided on the lower surface portion 61 arranged below the connection port 4. The drainage portion 62 is arranged below the space a of the connection port 4 and receives the condensed water dropped downward from the liquid header portion 31L and each liquid branch pipe 43L.

排水部６２は、傾斜部６２１と排水路６２２を有する。傾斜部６２１は、カバー部材６の下面部６１の右端から左方（接続ポート配置パネル２５ａ側）に向かって下方に傾斜するとともに、下面部６１の前方から後方に向かって下方に傾斜するように形成されている。つまり、傾斜部６２１は、液ヘッダ部３１Ｌや各液分岐管４３Ｌから下方に滴下した結露水を下面部６１の後方かつ左方に集められるように形成されている。   The drainage section 62 has an inclined section 621 and a drainage channel 622. The inclined portion 621 is inclined downward from the right end of the lower surface portion 61 of the cover member 6 toward the left side (connection port arrangement panel 25a side) and is inclined downward from the front side of the lower surface portion 61 toward the rear side. Has been formed. That is, the inclined portion 621 is formed so that the condensed water dropped downward from the liquid header portion 31L and each liquid branch pipe 43L can be collected behind and to the left of the lower surface portion 61.

排水路６２２は、傾斜部６２１の後方かつ左方に傾斜部６２１から凹むように形成される断面Ｕ字状の溝である。排水路６２２の左端は傾斜部６２１の左端に開放するように形成されており、カバー部材６を接続ポート配置パネル２５ａに取付けた際に、図５に示すように、排水路６２２の左端が室外機１の底板２１の上方に配置されるようになっている。   The drainage channel 622 is a groove having a U-shaped cross section that is formed so as to be recessed from the inclined portion 621 to the rear and left of the inclined portion 621. The left end of the drainage channel 622 is formed so as to open to the left end of the inclined portion 621, and when the cover member 6 is attached to the connection port arrangement panel 25a, as shown in FIG. It is arranged above the bottom plate 21 of the machine 1.

以上説明してきた排水部６２を有するカバー部材６を接続ポート配置パネル２５ａに取付けると、液ヘッダ部３１Ｌや各液分岐管４３Ｌから下方に滴下する結露水が傾斜部６２１に滴下する。傾斜部６２１に滴下した結露水は、傾斜部６２１を流れて排水路６２２に集められ、排水路６２２から室外機１の底板２１に排出される。底板２１に集められた結露水は、底板２１の底面に形成された図示しない排水口、または、排水口に接続された図示しないドレンホースを介して室外機１の外部に排出される。この結果、室外機１の地面設置、ベランダ設置、吊り下げ設置などの設置形態を問わず、結露水を底板２１に集めて排出することができる。   When the cover member 6 having the drainage portion 62 described above is attached to the connection port arrangement panel 25a, the dew condensation water dropping downward from the liquid header portion 31L or each liquid branch pipe 43L drops onto the inclined portion 621. The condensed water dropped on the inclined portion 621 flows through the inclined portion 621, is collected in the drainage channel 622, and is discharged from the drainage channel 622 to the bottom plate 21 of the outdoor unit 1. The condensed water collected on the bottom plate 21 is discharged to the outside of the outdoor unit 1 via a drain port (not shown) formed on the bottom surface of the bottom plate 21 or a drain hose (not shown) connected to the drain port. As a result, the dew condensation water can be collected on the bottom plate 21 and discharged regardless of the installation form of the outdoor unit 1, such as the ground installation, the veranda installation, or the hanging installation.

次に、図１０乃至図１２を用いて、規制プレート４８について説明する。規制プレート４８は、図１０に示すように、６組の液管接続部４２Ｌとガス管接続部４２Ｇに応じて６枚設けられている。なお、以下の説明では、図１２に示すように、液管接続部４２Ｌの主軸部４５１Ｌの対向する辺の間隔寸法をＵＬ１（以降、対辺寸法ＵＬ１と記載）、対向する角の間隔寸法をＵＬ２（以降、対角寸法ＵＬ２と記載）とし、ガス管接続部４２Ｇの主軸部４５１Ｇの対向する辺の間隔寸法をＵＧ１（以降、対辺寸法ＵＧ１と記載）、対向する角の間隔寸法をＵＧ２（以降、対角寸法ＵＧ２と記載）として説明する。   Next, the regulation plate 48 will be described with reference to FIGS. 10 to 12. As shown in FIG. 10, six regulation plates 48 are provided corresponding to the six sets of liquid pipe connection portions 42L and gas pipe connection portions 42G. In the following description, as shown in FIG. 12, the space dimension of the opposing sides of the main shaft portion 451L of the liquid pipe connecting portion 42L is UL1 (hereinafter referred to as the opposite side dimension UL1), and the space dimension of the opposing corners is UL2. (Hereinafter, referred to as diagonal dimension UL2), the distance between the opposite sides of the main shaft portion 451G of the gas pipe connecting portion 42G is UG1 (hereinafter referred to as the diagonal dimension UG1), and the distance between the opposite angles is UG2 (hereinafter referred to as the dimension). , And diagonal dimension UG2).

各規制プレート４８は、図１１と図１２に示すように、長方形状の鋼板からなる本体部４８１に、位置決めフランジ４８１ａと、ガス側切欠部４８２Ｇと、液側切欠部４８２Ｌを有する。また、本体部４８１には、規制プレート４８をユニオンプレート４７２に取付けるための２個のネジ孔４８１ｅを有する。   As shown in FIGS. 11 and 12, each regulation plate 48 has a positioning flange 481a, a gas side cutout 482G, and a liquid side cutout 482L in a main body 481 made of a rectangular steel plate. Further, the main body portion 481 has two screw holes 481e for attaching the regulation plate 48 to the union plate 472.

本体部４８１は、一方の面が装着面４８１ｂとされ、他方の面が裏面４８１ｃとされている。装着面４８１ｂは、規制プレート４８を取付部材４７およびガス管接続部４２Ｇの溝部４５３Ｇおよび液側接続部４２Ｌの溝部４５３Ｌに装着する際に、取付部材４７に密着する面である。   The body 481 has one surface as a mounting surface 481b and the other surface as a back surface 481c. The mounting surface 481b is a surface that comes into close contact with the mounting member 47 when the restriction plate 48 is mounted in the mounting member 47, the groove portion 453G of the gas pipe connecting portion 42G, and the groove portion 453L of the liquid side connecting portion 42L.

位置決めフランジ４８１ａは、本体部４８１の一方の長辺側端部を裏面４８１ｃ側に折り曲げて形成される。位置決めフランジ４８１ａの折り曲げ寸法（位置決めフランジ４８１ａの高さ寸法）は、取付部材４７に設けられる位置決め突起４７２ｂの高さに対応した寸法とされている。   The positioning flange 481a is formed by bending one long side end of the main body 481 toward the back surface 481c. The bending dimension of the positioning flange 481a (height dimension of the positioning flange 481a) corresponds to the height of the positioning protrusion 472b provided on the mounting member 47.

ガス側切欠部４８２Ｇは、図１１では本体部４８１における下部に、図１２では本体部４８１における右部に設けられている。ガス側切欠部４８２Ｇは、位置決めフランジ４８１ａが形成される側の長辺と反対側の長辺側端部である挿入側端部４８１ｄから位置決めフランジ４８１ａ側に向かって本体部４８１を切欠いて形成される。具体的には、ガス側切欠部４８２Ｇは、位置決めフランジ４８１ａ側の端部が半円形状に形成され全体としてＵ字形状に形成される。   The gas side cutout portion 482G is provided in the lower portion of the main body portion 481 in FIG. 11 and in the right portion of the main body portion 481 in FIG. The gas side cutout 482G is formed by cutting out the main body 481 from the insertion side end 481d, which is the long side end opposite to the long side on which the positioning flange 481a is formed, toward the positioning flange 481a side. It Specifically, the gas side cutout portion 482G is formed in a U shape as a whole by forming an end portion on the side of the positioning flange 481a in a semicircular shape.

Ｕ字形状に形成されたガス側切欠部４８２Ｇの周縁部を装着面４８１ｂから裏面４８１ｃに向かって隆起させることによって、装着面４８１ｂと段差を有するガス側軸方向規制面４８３ＧＳと、装着面４８１ｂとガス側軸方向規制面４８３ＧＳを繋ぐガス側回転規制壁４８３Ｇが形成される。また、ガス側軸方向規制面４８３ＧＳのうちの半円形状に形成された箇所の挿入側端部４８１ｄ側に臨む端部が裏面４８１ｃ側に折り曲げられてガス側溝嵌合リブ４８４Ｇが形成される。   The gas-side axial restriction surface 483GS having a step with the mounting surface 481b and the mounting surface 481b are formed by raising the peripheral portion of the U-shaped gas-side cutout portion 482G from the mounting surface 481b toward the back surface 481c. A gas-side rotation regulating wall 483G that connects the gas-side axial regulation surface 483GS is formed. Further, an end of the gas-side axial direction restricting surface 483GS, which is formed in a semicircular shape and faces the insertion-side end 481d, is bent toward the back surface 481c to form a gas-side groove fitting rib 484G.

ガス側溝嵌合リブ４８４Ｇの直径寸法ＨＧ２は、ガス管接続部４２Ｇの溝部４５３Ｇの直径寸法ＵＧ３より少し大きい寸法とされている。また、ガス側溝嵌合リブ４８４Ｇの高さ寸法は、ガス管接続部４２Ｇの溝部４５３Ｇの幅寸法より少し小さい寸法とされている。そして、ガス側溝嵌合リブ４８４Ｇの挿入側端部４８１ｄ側の端部の一部（角部）が斜めにカットされて、ガス側溝導入部４８４ＧＩが形成されている。   The diameter dimension HG2 of the gas side groove fitting rib 484G is slightly larger than the diameter dimension UG3 of the groove portion 453G of the gas pipe connecting portion 42G. The height dimension of the gas side groove fitting rib 484G is slightly smaller than the width dimension of the groove portion 453G of the gas pipe connecting portion 42G. Then, a part (corner) of the end portion on the insertion side end portion 481d side of the gas side groove fitting rib 484G is obliquely cut to form a gas side groove introduction portion 484GI.

挿入側端部４８１ｄ側のガス側回転規制壁４８３Ｇの幅寸法ＨＧ１（ガス側切欠部４８２Ｇの開口寸法）は、ガス管接続部４２Ｇの主軸部４５１Ｇの対辺寸法ＵＧ１より少し大きな寸法であり、かつ、主軸部４５１Ｇの対角寸法ＵＧ２より少し小さい寸法とされている。つまり、ガス側回転規制壁４８３Ｇと主軸部４５１Ｇとの寸法関係がＵＧ１＜ＨＧ１＜ＵＧ２になっている。   The width dimension HG1 (opening dimension of the gas side cutout portion 482G) of the gas side rotation regulating wall 483G on the insertion side end portion 481d side is slightly larger than the opposite side dimension UG1 of the main shaft portion 451G of the gas pipe connecting portion 42G, and The dimension is slightly smaller than the diagonal dimension UG2 of the main shaft portion 451G. That is, the dimensional relationship between the gas side rotation restriction wall 483G and the main shaft portion 451G is UG1 <HG1 <UG2.

ガス側軸方向規制面４８３ＧＳは、装着面４８１ｂと平行な面であり、ガス管接続部４２Ｇの溝部４５３Ｇにガス側切欠部４８２Ｇが挿入されたときに、ガス管接続部４２Ｇの溝部４５３Ｇの側面に当たる面である。ガス側回転規制壁４８３Ｇは、ガス管接続部４２Ｇの溝部４５３Ｇにガス側切欠部４８２Ｇが挿入されたときに、ガス管接続部４２Ｇの主軸部４５１Ｇの角が当たる面である。ガス側溝嵌合リブ４８４Ｇは、ガス管接続部４２Ｇの溝部４５３Ｇにガス側切欠部４８２Ｇが挿入されたときに、ガス管接続部４２Ｇの溝部４５３Ｇに嵌合する部分である。   The gas side axial direction restricting surface 483GS is a surface parallel to the mounting surface 481b, and is a side surface of the groove portion 453G of the gas pipe connecting portion 42G when the gas side cutout portion 482G is inserted into the groove portion 453G of the gas pipe connecting portion 42G. This is the side that hits. The gas-side rotation restricting wall 483G is a surface with which the corner of the main shaft portion 451G of the gas pipe connecting portion 42G abuts when the gas side cutout portion 482G is inserted into the groove portion 453G of the gas pipe connecting portion 42G. The gas side groove fitting rib 484G is a portion that fits into the groove portion 453G of the gas pipe connecting portion 42G when the gas side cutout portion 482G is inserted into the groove portion 453G of the gas pipe connecting portion 42G.

液側切欠部４８２Ｌは、図１１では本体部４８１における上部に、図１２では本体部４８１における左部に設けられている。液側切欠部４８２Ｌは、位置決めフランジ４８１ａが形成される側の長辺と反対側の長辺端部である挿入側端部４８１ｄから位置決めフランジ４８１ａ側に向かって本体部４８１を切り欠いて形成される。具体的には、液側切欠部４８２Ｌは、位置決めフランジ４８１ａ側の端部が半円形状に形成され全体としてＵ字形状に形成される。   The liquid side cutout portion 482L is provided in the upper portion of the main body portion 481 in FIG. 11 and in the left portion of the main body portion 481 in FIG. The liquid side cutout portion 482L is formed by cutting out the main body portion 481 from the insertion side end portion 481d, which is the long side end opposite to the long side on which the positioning flange 481a is formed, toward the positioning flange 481a side. It Specifically, the liquid-side cutout portion 482L is formed in a U shape as a whole, with the end portion on the side of the positioning flange 481a formed in a semicircular shape.

Ｕ字形状に形成された液側切欠部４８２Ｌの周縁部を装着面４８１ｂから裏面４８１ｃに向かって隆起させることによって、装着面４８１ｂと段差を有する液側軸方向規制面４８３ＬＳと、装着面４８１ｂと液側軸方向規制面４８３ＬＳを繋ぐ液側回転規制壁４８３Ｌが形成される。また、液側軸方向規制面４８３ＬＳのうちの半円形状に形成された箇所の挿入側端部４８１ｄ側に臨む端部が裏面４８１ｃ側に折り曲げられて液側溝嵌合リブ４８４Ｌが形成される。   By raising the peripheral portion of the U-shaped liquid-side notch 482L from the mounting surface 481b toward the back surface 481c, the liquid-side axial direction regulating surface 483LS having a step with the mounting surface 481b, and the mounting surface 481b are provided. A liquid-side rotation restricting wall 483L that connects the liquid-side axial direction restricting surface 483LS is formed. Further, an end of the liquid-side axial direction restricting surface 483LS, which is formed in a semicircular shape and faces the insertion-side end 481d, is bent toward the back surface 481c to form the liquid-side groove fitting rib 484L.

液側溝嵌合リブ４８４Ｌの直径寸法ＨＬ２は、液管接続部４２Ｌの溝部４５３Ｌの直径寸法ＵＬ３より少し大きい寸法とされている。また、液側溝嵌合リブ４８４Ｌの高さ寸法は、液管接続部４２Ｌの溝部４５３Ｌの幅寸法より少し小さい寸法とされている。そして、液側溝嵌合リブ４８４Ｌの挿入側端部４８１ｄ側の端部の一部（角部）が斜めにカットされて、液側溝導入部４８４ＬＩが形成されている。   The diameter dimension HL2 of the liquid side groove fitting rib 484L is slightly larger than the diameter dimension UL3 of the groove portion 453L of the liquid pipe connecting portion 42L. The height dimension of the liquid side groove fitting rib 484L is slightly smaller than the width dimension of the groove portion 453L of the liquid pipe connection portion 42L. Then, a part (corner) of the end portion on the insertion side end portion 481d side of the liquid side groove fitting rib 484L is obliquely cut to form a liquid side groove introduction portion 484LI.

挿入側端部４８１ｄ側の液側回転規制壁４８３Ｌの幅寸法ＨＬ１（液側切欠部４８２Ｌの開口寸法）は、液管接続部４２Ｌの主軸部４５１Ｌの対辺寸法ＵＬ１より少し大きな寸法であり、かつ、主軸部４５１Ｌの対角寸法ＵＬ２より少し小さい寸法とされている。つまり、液側回転規制壁４８３Ｌと主軸部４５１Ｌとの寸法関係がＵＬ１＜ＨＬ１＜ＵＬ２になっている。   The width dimension HL1 (opening dimension of the liquid side cutout portion 482L) of the liquid side rotation regulating wall 483L on the insertion side end portion 481d side is slightly larger than the opposite side dimension UL1 of the main shaft portion 451L of the liquid pipe connecting portion 42L, and The dimension is slightly smaller than the diagonal dimension UL2 of the main shaft portion 451L. That is, the dimensional relationship between the liquid side rotation restricting wall 483L and the main shaft portion 451L is UL1 <HL1 <UL2.

液側軸方向規制面４８３ＬＳは、装着面４８１ｂと平行な面であり、液管接続部４２Ｌの溝部４５３Ｌに液側切欠部４８２Ｌが挿入されたときに、液管接続部４２Ｌの溝部４５３Ｌの側面に当たる面である。液側回転規制壁４８３Ｌは、液管接続部４２Ｌの溝部４５３Ｌに液側切欠部４８２Ｌが挿入されたときに、液管接続部４２Ｌの主軸部４５１Ｌの角が当たる面である。液側溝嵌合リブ４８４Ｌは、液管接続部４２Ｌの溝部４５３Ｌに液側切欠部４８２Ｌが挿入されたときに、液管接続部４２Ｌの溝部４５３Ｌに嵌合する部分である。   The liquid side axial direction restricting surface 483LS is a surface parallel to the mounting surface 481b, and is a side surface of the groove portion 453L of the liquid pipe connecting portion 42L when the liquid side cutout portion 482L is inserted into the groove portion 453L of the liquid pipe connecting portion 42L. This is the side that hits. The liquid-side rotation restricting wall 483L is a surface on which the corner of the main shaft portion 451L of the liquid pipe connecting portion 42L abuts when the liquid side cutout portion 482L is inserted into the groove 453L of the liquid pipe connecting portion 42L. The liquid side groove fitting rib 484L is a portion that fits into the groove portion 453L of the liquid pipe connecting portion 42L when the liquid side cutout portion 482L is inserted into the groove portion 453L of the liquid pipe connecting portion 42L.

以上のように構成された規制プレート４８を用いて、液管接続部４２Ｌおよびガス管接続部４２Ｇをユニオンプレート４７２に取付ける手順について図１０と図１１を用いて説明する。まず、図１１に示すように、ユニオンプレート４７２の前面４７２ａ側から後方側に向かって、液管接続部４２Ｌの主軸部４５１Ｌを液側挿通孔４７２Ｌに挿通し、ガス管接続部４２Ｇの主軸部４５１Ｇをガス側挿通孔４７２Ｇに挿通する。次に、規制プレート４８の装着面４８１ｂをユニオンプレート４７２の前面４７２ａに臨ませ、液側切欠部４８２Ｌを液管接続部４２Ｌの溝部４５３Ｌに合せるとともに、ガス側切欠部４８２Ｇをガス管接続部４２Ｇの溝部４５３Ｇに合せ、規制プレート４８を左から右に向けてスライドさせる。   A procedure for attaching the liquid pipe connection portion 42L and the gas pipe connection portion 42G to the union plate 472 using the regulation plate 48 configured as described above will be described with reference to FIGS. 10 and 11. First, as shown in FIG. 11, the main shaft portion 451L of the liquid pipe connection portion 42L is inserted into the liquid side insertion hole 472L from the front surface 472a side of the union plate 472 toward the rear side, and the main shaft portion of the gas pipe connection portion 42G is inserted. 451G is inserted into the gas side insertion hole 472G. Next, the mounting surface 481b of the regulation plate 48 is exposed to the front surface 472a of the union plate 472, the liquid side cutout portion 482L is aligned with the groove portion 453L of the liquid pipe connection portion 42L, and the gas side cutout portion 482G is connected to the gas pipe connection portion 42G. The regulating plate 48 is slid from left to right in alignment with the groove portion 453G.

規制プレート４８をスライドさせる際には、規制プレート４８の装着面４８１ｂがユニオンプレート４７２の位置決め突起４７２ｂに乗り上げるため、規制プレート４８をユニオンプレート４７２に対して傾斜した状態でスライドさせることになる。そして、液側溝嵌合リブ４８４Ｌを液管接続部４２Ｌの溝部４５３Ｌに嵌合させるとともに、ガス側溝嵌合リブ４８４Ｇをガス管接続部４２Ｇの溝部４５３Ｇに嵌合させる。液側溝嵌合リブ４８４Ｌを液管接続部４２Ｌの溝部４５３Ｌに嵌合させるとともに、ガス側溝嵌合リブ４８４Ｇをガス管接続部４２Ｇの溝部４５３Ｇに嵌合させると、規制プレート４８の装着面４８１ｂがユニオンプレート４７２の位置決め突起４７２ｂを乗り越えて、ユニオンプレート４７２の前面４７２ａに沿って規制プレート４８の装着面４８１ｂが配置される。このとき、ユニオンプレート４７２の位置決め突起４７２ｂに規制プレート４８の本体部４８１の位置決めフランジ４８１ａが当たり、規制プレート４８が位置決めされる。   When the regulation plate 48 is slid, the mounting surface 481b of the regulation plate 48 rides on the positioning protrusion 472b of the union plate 472, so that the regulation plate 48 is slid with respect to the union plate 472. Then, the liquid side groove fitting rib 484L is fitted into the groove portion 453L of the liquid pipe connecting portion 42L, and the gas side groove fitting rib 484G is fitted into the groove portion 453G of the gas pipe connecting portion 42G. When the liquid side groove fitting rib 484L is fitted to the groove portion 453L of the liquid pipe connecting portion 42L and the gas side groove fitting rib 484G is fitted to the groove portion 453G of the gas pipe connecting portion 42G, the mounting surface 481b of the regulation plate 48 is The mounting surface 481b of the regulation plate 48 is disposed along the front surface 472a of the union plate 472, overcoming the positioning protrusion 472b of the union plate 472. At this time, the positioning protrusions 472b of the union plate 472 are brought into contact with the positioning flange 481a of the main body portion 481 of the regulation plate 48 to position the regulation plate 48.

そして、規制プレート４８をユニオンプレート４７２の位置決め突起４７２ｂに当てて位置決めした後、規制プレート４８をユニオンプレート４７２に２本のネジで取付ける。これにより、液管接続部４２Ｌおよびガス管接続部４２Ｇが規制プレート４８によってユニオンプレート４７２に取付けられる。   Then, after the regulation plate 48 is positioned by contacting the positioning protrusion 472b of the union plate 472, the regulation plate 48 is attached to the union plate 472 with two screws. As a result, the liquid pipe connection portion 42L and the gas pipe connection portion 42G are attached to the union plate 472 by the regulation plate 48.

次に、液側挿通孔４７２Ｌから後方側に突出した液管接続部４２Ｌのネジ部４５２Ｌに液側フレアーナット４４Ｌａが取付けられ、ガス側挿通孔４７２Ｇから後方側に突出したガス管接続部４２Ｇのネジ部４５２Ｇにガス側フレアーナット４４Ｇａが取付けられる。   Next, the liquid side flare nut 44La is attached to the screw portion 452L of the liquid pipe connecting portion 42L protruding rearward from the liquid side inserting hole 472L, and the gas pipe connecting portion 42G protruding rearward from the gas side inserting hole 472G. The gas side flare nut 44Ga is attached to the screw portion 452G.

以上説明したように、本実施形態の室外機１によれば、液管接続部４２Ｌおよびガス管接続部４２Ｇが規制プレート４８によりユニオンプレート４７２に取付けられると、液管接続部４２Ｌの溝部４５３Ｌと液側溝嵌合リブ４８４Ｌが嵌合するとともに、液管接続部４２Ｌの溝部４５３Ｌの側面が液側軸方向規制面４８３ＬＳと当たるため、液管接続部４２Ｌの前後方向の動きを規制することができる。また、ガス管接続部４２Ｇの溝部４５３Ｇとガス側溝嵌合リブ４８４Ｇが嵌合するとともに、ガス管接続部４２Ｇの溝部４５３Ｇの側面がガス側軸方向規制面４８３ＧＳと当たるため、ガス管接続部４２Ｇの前後方向の動きを規制することができる。   As described above, according to the outdoor unit 1 of the present embodiment, when the liquid pipe connection portion 42L and the gas pipe connection portion 42G are attached to the union plate 472 by the regulation plate 48, the groove portion 453L of the liquid pipe connection portion 42L is formed. Since the liquid side groove fitting rib 484L is fitted and the side surface of the groove portion 453L of the liquid pipe connecting portion 42L contacts the liquid side axial direction restricting surface 483LS, the movement of the liquid pipe connecting portion 42L in the front-rear direction can be restricted. .. Further, since the groove portion 453G of the gas pipe connecting portion 42G and the gas side groove fitting rib 484G are fitted together, and the side surface of the groove portion 453G of the gas pipe connecting portion 42G contacts the gas side axial direction regulating surface 483GS, the gas pipe connecting portion 42G. The movement in the front-back direction can be regulated.

また、前述のように、規制プレート４８をスライドさせて、規制プレート４８をユニオンプレート４７２と液管接続部４２Ｌの溝部４５３Ｌとガス管接続部４２Ｇの溝部４５３Ｇに装着する際、規制プレート４８がユニオンプレート４７２の位置決め突起４７２ｂに乗り上げて傾斜するため、液管接続部４２Ｌの溝部４５３Ｌとガス管接続部４２Ｇの溝部４５３Ｇに対して液側溝嵌合リブ４８４Ｌとガス側溝嵌合リブ４８４Ｇも傾斜した状態となる。しかし、液側溝嵌合リブ４８４Ｌの角部に液側溝導入部４８４ＬＩを有するとともに、ガス側溝嵌合リブ４８４Ｇの角部にガス側溝導入部４８４ＧＩを有するので、液側溝嵌合リブ４８４Ｌに液側溝導入部４８４ＬＩがなく、ガス側溝嵌合リブ４８４Ｇにガス側溝導入部４８４ＧＩがない場合に比べて、液側溝嵌合リブ４８４Ｌの液管接続部４２Ｌの溝部４５３Ｌへの挿入が容易になるとともに、ガス側溝嵌合リブ４８４Ｇのガス管接続部４２Ｇの溝部４５３Ｇへの挿入が容易になり、規制プレート４８の装着をスムーズに行うことができる。   Further, as described above, when the regulating plate 48 is slid to mount the regulating plate 48 in the union plate 472, the groove portion 453L of the liquid pipe connecting portion 42L, and the groove portion 453G of the gas pipe connecting portion 42G, the regulating plate 48 is unioned. Since the positioning protrusion 472b of the plate 472 rides up and tilts, the liquid side groove fitting rib 484L and the gas side groove fitting rib 484G are also tilted with respect to the groove portion 453L of the liquid pipe connecting portion 42L and the groove portion 453G of the gas pipe connecting portion 42G. Becomes However, since the liquid side groove fitting rib 484L has the liquid side groove introducing portion 484LI at the corner and the gas side groove fitting rib 484G has the gas side groove introducing portion 484GI at the corner, the liquid side groove introducing rib 484L is introduced. As compared with the case where there is no portion 484LI and the gas side groove fitting rib 484G does not have the gas side groove introducing portion 484GI, the liquid side groove fitting rib 484L can be easily inserted into the groove portion 453L of the liquid pipe connecting portion 42L, and the gas side groove The fitting rib 484G can be easily inserted into the groove 453G of the gas pipe connecting portion 42G, and the regulation plate 48 can be mounted smoothly.

また、液側切欠部４８２Ｌの液側回転規制壁４８３Ｌと液管接続部４２Ｌの主軸部４５１Ｌとの寸法関係がＵＬ１＜ＨＬ１になっており、ガス側切欠部４８２Ｇのガス側回転規制壁４８３Ｇとガス管接続部４２Ｇの主軸部４５１Ｇとの寸法関係がＵＧ１＜ＨＧ１になっている。このため、液管接続部４２Ｌの溝部４５３Ｌへの液側切欠部４８２Ｌの挿入と、ガス管接続部４２Ｇの溝部４５３Ｇへのガス側切欠部４８２Ｇの挿入を容易に行うことができる。さらに、液側切欠部４８２Ｌの液側回転規制壁４８３Ｌと液管接続部４２Ｌの主軸部４５１Ｌとの寸法関係がＨＬ１＜ＵＬ２になっており、ガス側切欠部４８２Ｇのガス側回転規制壁４８３Ｇとガス管接続部４２Ｇの主軸部４５１Ｇとの寸法関係がＨＧ１＜ＵＧ２になっている。このため、液管接続部４２Ｌのネジ部４５２Ｌに液側フレアーナット４４Ｌａを螺合し、ガス管接続部４２Ｇのネジ部４５２Ｇにガス側フレアーナット４４Ｇａを螺合する際に、液管接続部４２Ｌやガス管接続部４２Ｇにレンチなどで大きな回転トルクがかかったとしても、液管接続部４２Ｌの主軸部４５１Ｌやガス管接続部４２Ｇの主軸部４５１Ｇの角部分が、液側回転規制壁４８３Ｌおよびガス側回転規制壁４８３Ｇに当たって、液管接続部４２Ｌとガス管接続部４２Ｇの回転方向の動きが規制される。   Further, the dimensional relationship between the liquid-side rotation restricting wall 483L of the liquid-side cutout portion 482L and the main shaft portion 451L of the liquid pipe connecting portion 42L is UL1 <HL1, and the gas-side cutout portion 482G and the gas-side rotation restricting wall 483G. The dimension relationship between the gas pipe connecting portion 42G and the main shaft portion 451G is UG1 <HG1. Therefore, it is possible to easily insert the liquid side cutout portion 482L into the groove portion 453L of the liquid pipe connection portion 42L and the gas side cutout portion 482G into the groove portion 453G of the gas pipe connection portion 42G. Furthermore, the dimensional relationship between the liquid side rotation restricting wall 483L of the liquid side cutout 482L and the main shaft portion 451L of the liquid pipe connecting part 42L is HL1 <UL2, and the gas side rotation restricting wall 483G of the gas side cutout 482G and The dimension relationship between the gas pipe connecting portion 42G and the main shaft portion 451G is HG1 <UG2. Therefore, when the liquid side flare nut 44La is screwed into the screw portion 452L of the liquid pipe connecting portion 42L and the gas side flare nut 44Ga is screwed into the screw portion 452G of the gas pipe connecting portion 42G, the liquid pipe connecting portion 42L is Even if a large rotational torque is applied to the gas pipe connecting portion 42G with a wrench or the like, the corner portions of the main shaft portion 451L of the liquid pipe connecting portion 42L and the main shaft portion 451G of the gas pipe connecting portion 42G are not connected to the liquid side rotation regulating wall 483L and By hitting the gas side rotation restricting wall 483G, the movement of the liquid pipe connecting portion 42L and the gas pipe connecting portion 42G in the rotating direction is restricted.

液管接続部４２Ｌのネジ部４５２Ｌに液側フレアーナット４４Ｌａを螺合する際や、ガス管接続部４２Ｇのネジ部４５２Ｇにガス側フレアーナット４４Ｇａを螺合する際に大きな回転トルクがかかった場合、従来では、液管接続部４２Ｌの主軸部４５１Ｌやガス管接続部４２Ｇの主軸部４５１Ｇがユニオンプレート４７２の液側挿通孔４７２Ｌやガス側挿通孔４７２Ｇに突き当たってユニオンプレート４７２に大きな力が加わると、ユニオンプレート４７２が変形する恐れがある。ユニオンプレート４７２の変形により、液側挿通孔４７２Ｌやガス側挿通孔４７２Ｇが変形した場合、液管接続部４２Ｌの主軸部４５１Ｌやガス管接続部４２Ｇの主軸部４５１Ｇの回転止めができなくなる恐れがある。そして、回転止めができない状態で、液側フレアーナット４４Ｌａやガス側フレアーナット４４Ｇａに大きな回転トルクをかけ続けると、液管接続部４２Ｌの主軸部４５１Ｌに接続される液分岐管４３Ｌやガス管接続部４２Ｇの主軸部４５１Ｇに接続されるガス分岐管４３Ｇにストレスがかかり、液分岐管４３Ｌやガス分岐管４３Ｇが変形したり破損する恐れがある。しかし、本実施形態の室外機１では、液側切欠部４８２Ｌの液側回転規制壁４８３Ｌとガス側切欠部４８２Ｇのガス側回転規制壁４８３Ｇに、液管接続部４２Ｌの主軸部４５１Ｌやガス管接続部４２Ｇの主軸部４５１Ｇの角部分が当たってユニオンプレート４７２に加わる力が軽減されるので、ユニオンプレート４７２が変形するのを抑制できる。   When a large rotational torque is applied when the liquid side flare nut 44La is screwed into the screw portion 452L of the liquid pipe connecting portion 42L or when the gas side flare nut 44Ga is screwed into the screw portion 452G of the gas pipe connecting portion 42G. In the related art, the main shaft portion 451L of the liquid pipe connection portion 42L and the main shaft portion 451G of the gas pipe connection portion 42G hit the liquid side insertion hole 472L and the gas side insertion hole 472G of the union plate 472, and a large force is applied to the union plate 472. Then, the union plate 472 may be deformed. When the liquid side insertion hole 472L or the gas side insertion hole 472G is deformed due to the deformation of the union plate 472, there is a possibility that the rotation of the main shaft portion 451L of the liquid pipe connection portion 42L or the main shaft portion 451G of the gas pipe connection portion 42G cannot be stopped. is there. When a large rotation torque is continuously applied to the liquid side flare nut 44La and the gas side flare nut 44Ga in a state where rotation cannot be stopped, the liquid branch pipe 43L and the gas pipe connection connected to the main shaft portion 451L of the liquid pipe connection portion 42L. The gas branch pipe 43G connected to the main shaft portion 451G of the portion 42G may be stressed, and the liquid branch pipe 43L or the gas branch pipe 43G may be deformed or damaged. However, in the outdoor unit 1 of the present embodiment, the liquid-side rotation restricting wall 483L of the liquid-side cutout 482L and the gas-side rotation restricting wall 483G of the gas-side cutout 482G are connected to the main shaft portion 451L and the gas pipe of the liquid pipe connecting portion 42L. Since the force applied to the union plate 472 by hitting the corner portion of the main shaft portion 451G of the connection portion 42G is reduced, it is possible to suppress the deformation of the union plate 472.

さらに、本実施形態の室外機１によれば、規制プレート４８は、液側切欠部４８２Ｌに液側溝嵌合リブ４８４Ｌを有し、ガス側切欠部４８２Ｇにガス側溝嵌合リブ４８４Ｇを有しているため、液側切欠部４８２Ｌの液側回転規制壁４８３Ｌやガス側切欠部４８２Ｇのガス側回転規制壁４８３Ｇに回転トルクに起因する力が加えられた際に、液側切欠部４８２Ｌやガス側切欠部４８２Ｇが広がる（ＨＧ１やＨＬ１が大きくなる）方向に変形するのを防止することができる。   Furthermore, according to the outdoor unit 1 of the present embodiment, the regulation plate 48 has the liquid side groove fitting rib 484L in the liquid side cutout portion 482L and the gas side groove fitting rib 484G in the gas side cutout portion 482G. Therefore, when a force resulting from the rotational torque is applied to the liquid side rotation restricting wall 483L of the liquid side cutout portion 482L and the gas side rotation restricting wall 483G of the gas side cutout portion 482G, the liquid side cutout portion 482L and the gas side It is possible to prevent the cutout portion 482G from being deformed in the direction in which it expands (HG1 and HL1 increase).

なお、ガス管接続部４２Ｇの主軸部４５１Ｇと液管接続部４２Ｌの主軸部４５１Ｌは、規制プレート４８によって回転方向の動きを規制できればよいため、外形の断面形状を正六角形状に形成したものに限らず、他の正多角形状に形成されていてもよい。但し、各主軸部の外形の断面形状は、奇数個の角を有する正多角形状とするよりも、偶数個の角を有する正多角形状とする方が望ましい。   The main shaft portion 451G of the gas pipe connecting portion 42G and the main shaft portion 451L of the liquid pipe connecting portion 42L need only be capable of restricting the movement in the rotational direction by the restricting plate 48, so that the outer shape should be a regular hexagonal shape. The shape is not limited to this, and may be formed in another regular polygonal shape. However, the cross-sectional shape of the outer shape of each main shaft portion is preferably a regular polygonal shape having an even number of corners rather than a regular polygonal shape having an odd number of corners.

各主軸部の断面形状を奇数個の角を有する正多角形状にした場合、各主軸部は対向する平行な辺を持たない。より具体的には、１つの辺に対向する箇所には角が存在する。このため、各切欠部の軸方向規制面に各主軸部の溝部の側面が当たる際に、左右のいずれかの軸方向規制面に主軸部の辺に対応する溝部の側面が当たり、他方の軸方向規制面に主軸部の角に対応する溝部の側面が当たることとなる。つまり、左右の軸方向規制面で主軸部の溝部の側面を受ける面積が異なる。
このように、左右の軸方向規制面で主軸部の溝部の側面を受ける面積が異なると、各軸方向規制面で各接続部の軸方向（前後方向）の動きを規制する際に、左右の軸方向規制面に加わる力が異なるため、各接続部に軸方向に大きな力が加わったときに安定して各接続部の軸方向（前後方向）の動きを規制できない恐れがある。 When the cross-sectional shape of each main shaft portion is a regular polygon having an odd number of corners, each main shaft portion does not have opposing parallel sides. More specifically, there is a corner at a position facing one side. Therefore, when the side surface of the groove portion of each main shaft portion hits the side surface of the groove portion of each main shaft portion, the side surface of the groove portion corresponding to the side of the main shaft portion contacts the side surface of the groove portion of the main shaft portion, and the other shaft The side surface of the groove portion corresponding to the corner of the main shaft portion comes into contact with the direction regulation surface. That is, the left and right axial restriction surfaces have different areas for receiving the side surfaces of the groove portion of the main shaft portion.
In this way, when the areas that receive the side surfaces of the groove portion of the main shaft portion are different between the left and right axial direction regulating surfaces, the left and right axial direction regulating surfaces regulate the movement of each connecting portion in the axial direction (front-back direction). Since the forces applied to the axial direction restricting surface are different, there is a possibility that the axial movement (front-back direction) of each connecting portion cannot be stably regulated when a large axial force is applied to each connecting portion.

これに対し、各主軸部の断面形状を偶数個の角を有する正多角形状にした場合、各主軸部は対向する平行な辺をもつ形状となる。例えば、本実施形態のガス管接続部４２Ｇの主軸部４５１Ｇと液管接続部４２Ｌの主軸部４５１Ｌは、図１２に示すように、断面形状が各々正六角形状であるため、対辺寸法ＵＧ１や対辺寸法ＵＬ１となる対辺は平行である。この場合、主軸部４５１Ｇの溝部４５３Ｇの側面の幅寸法や主軸部４５１Ｌの溝部４５３Ｌの側面の幅寸法（例えば、ガス管接続部４２Ｇでは対辺寸法ＵＧ１から直径寸法ＵＧ３を減じて２で割った値）が左右で同じとなる。このため、主軸部４５１Ｇの溝部４５３Ｇの側面を受けるガス側軸方向規制面４８３ＧＳや主軸部４５１Ｌの溝部４５３Ｌの側面を受ける液側軸方向規制面４８３ＬＳも左右の幅寸法が同じとなる。つまり、ガス側軸方向規制面４８３ＧＳが左右で均等に主軸部４５１Ｇの溝部４５３Ｇの側面を受けるとともに、液側軸方向規制面４８３ＬＳが左右で均等に主軸部４５１Ｌの溝部４５３Ｌの側面を受けて、ガス管接続部４２Ｇと液管接続部４２Ｌの軸方向（前後方向）の動きを規制することができる。   On the other hand, when the cross-sectional shape of each main shaft portion is a regular polygonal shape having an even number of corners, each main shaft portion has a shape having opposing parallel sides. For example, as shown in FIG. 12, the main shaft portion 451G of the gas pipe connection portion 42G and the main shaft portion 451L of the liquid pipe connection portion 42L according to the present embodiment have cross-sectional shapes that are regular hexagons. The opposite sides having the dimension UL1 are parallel. In this case, the width dimension of the side surface of the groove portion 453G of the main shaft portion 451G and the width dimension of the side surface of the groove portion 453L of the main shaft portion 451L (for example, in the gas pipe connecting portion 42G, a value obtained by subtracting the diameter dimension UG3 from the opposite side dimension UG1 and dividing by 2). ) Is the same on the left and right. Therefore, the left and right width dimensions are also the same for the gas side axial direction restricting surface 483GS that receives the side surface of the groove portion 453G of the main shaft portion 451G and the liquid side axial direction restricting surface 483LS that receives the side surface of the groove portion 453L of the main shaft portion 451L. That is, the gas side axial direction restriction surface 483GS receives the side surfaces of the groove portion 453G of the main shaft portion 451G evenly on the left and right, and the liquid side axial direction restriction surface 483LS receives the side surface of the groove portion 453L of the main shaft portion 451L evenly on the left and right, The movement of the gas pipe connecting portion 42G and the liquid pipe connecting portion 42L in the axial direction (front-back direction) can be restricted.

このように、各主軸部の断面形状を偶数個の角を有する正多角形状とした場合は、規制プレートの各切欠部に設ける軸方向規制面で各接続部の軸方向（前後方向）の動きを左右均等に受けることができ、より安定して各接続部の軸方向（前後方向）の動きを規制することができる。
なお、ガス管接続部４２Ｇの主軸部４５１Ｇと液管接続部４２Ｌの主軸部４５１Ｌの正多角形状に合わせて、ユニオンプレート４７２のガス側挿通孔４７２Ｇと液側挿通孔４７２Ｌについても正多角形状に形成すればよい。 As described above, when the cross-sectional shape of each main shaft portion is a regular polygonal shape having an even number of corners, the axial regulation surface provided in each notch of the regulation plate moves in the axial direction (front-back direction) of each connection portion. Can be received evenly on the left and right, and the movement of each connecting portion in the axial direction (front-back direction) can be regulated more stably.
The gas-side insertion hole 472G and the liquid-side insertion hole 472L of the union plate 472 also have regular polygonal shapes in accordance with the regular polygonal shapes of the main shaft portion 451G of the gas pipe connection portion 42G and the main shaft portion 451L of the liquid pipe connection portion 42L. It may be formed.

また、ガス管接続部４２Ｇの溝部４５３Ｇや液管接続部４２Ｌの溝部４５３Ｌは、ガス管接続部４２Ｇの主軸部４５１Ｇや液管接続部４２Ｇの主軸部４５１Ｌの一部を所定の幅で円環状に切削して形成されているが、本発明はこれに限らず、Ｕ字状やＣ字状に形成されていてもよい。   In addition, the groove portion 453G of the gas pipe connecting portion 42G and the groove portion 453L of the liquid pipe connecting portion 42L are annular portions of the main shaft portion 451G of the gas pipe connecting portion 42G and the main shaft portion 451L of the liquid pipe connecting portion 42G with a predetermined width. However, the present invention is not limited to this, and may be formed in a U shape or a C shape.

また、室外機１に６台の室内機を接続するために、接続ポート４として液管接続部４２Ｌとガス管接続部４２Ｇを６個ずつ設けるようにしたが、本発明はこれに限らず、規制プレート４８のガス側切欠部４８２Ｇと液側切欠部４８２Ｌの構造については、室外機１に１台の室内機を接続するために、接続ポート４として液管接続部４２Ｌとガス管接続部４２Ｇを１個ずつ設ける場合にも適用することができ、この場合、１枚の規制プレート４８をガス側挿通孔４７２Ｇと液側挿通孔４７２Ｌを１個ずつ設けたユニオンプレートに取付ける。   Further, in order to connect the six indoor units to the outdoor unit 1, six liquid pipe connecting portions 42L and four gas pipe connecting portions 42G are provided as the connection ports 4, but the present invention is not limited to this. Regarding the structure of the gas side cutout portion 482G and the liquid side cutout portion 482L of the regulation plate 48, in order to connect one indoor unit to the outdoor unit 1, the liquid pipe connection portion 42L and the gas pipe connection portion 42G are used as the connection ports 4. The present invention can be applied to the case where each one is provided, and in this case, one regulation plate 48 is attached to a union plate provided with one gas side insertion hole 472G and one liquid side insertion hole 472L.

１ 室外機
２ 筐体
２１ 底板
２１ａ 脚部
２２ 前面パネル
２２１ 吹出グリル
２２ａ 吹出パネル
２２ｂ サービスパネル
２５ 側面パネル
２５２ 切欠部
２５ａ 接続ポート配置パネル
２５ｂ コンジットパネル
２６ 天板
２７ 支柱
３Ｇ ガス冷媒配管
３１Ｇ ガスヘッダ部
３２Ｇ ガス側延伸部
３Ｌ 液冷媒配管
３１Ｌ 液ヘッダ部
３２Ｌ 液側延伸部
３２１Ｌ 固定部
３３ 緩衝部材
４ 接続ポート
４２Ｇ ガス管接続部
４２Ｌ 液管接続部
４３Ｇ ガス分岐管
４３Ｌ 液分岐管
４３Ｌａ 折り曲げ点
４４Ｇ ガス側接続部
４４Ｇａ ガス側フレアーナット
４４Ｌ 液側接続部
４４Ｌａ 液側フレアーナット
４５Ｇ ガス側ユニオン
４５１Ｇ 主軸部
４５２Ｇ ネジ部
４５３Ｇ 溝部
４５Ｌ 液側ユニオン
４５１Ｌ 主軸部
４５２Ｌ ネジ部
４５３Ｌ 溝部
４６Ｌ 膨張弁
４７ 取付部材
４７１ ネジ止めプレート
４７２ ユニオンプレート
４７２ａ 前面
４７２ｂ 位置決め突起
４７２Ｇ ガス側挿通孔
４７２Ｌ 液側挿通孔
４８ 規制プレート
４８１ 本体部
４８１ａ 位置決めフランジ
４８１ｂ 装着面
４８１ｃ 裏面
４８１ｄ 挿入側端部
４８１ｅ ネジ孔
４８２Ｇ ガス側切欠部
４８２Ｌ 液側切欠部
４８３Ｇ ガス側回転規制壁
４８３ＧＳ ガス側軸方向規制面
４８３Ｌ 液側回転規制壁
４８３ＬＳ 液側軸方向規制面
４８４Ｇ ガス側溝嵌合リブ
４８４ＧＩ ガス側溝導入部
４８４Ｌ 液側溝嵌合リブ
４８４ＬＩ 液側溝導入部
６ カバー部材
６１ 下面部
６２ 排水部
６２１ 傾斜部
６２２ 排水路
Ｃ 圧縮機
Ｅ 室外熱交換器
Ｆ 送風ファン
Ｕ 電装品ユニット
Ｍ モータ
ＭＦ モータ支持体
ＨＣ 熱交換器室
ＭＣ 機械室
ｗ 横方向の寸法
ｄ 前後方向の寸法
ｈ 高さ方向の寸法
ａ 空間
ＨＬ１ 幅寸法
ＨＬ２ 直径
ＵＬ１ 対向する辺の間隔寸法
ＵＬ２ 対向する角の間隔寸法
ＵＬ３ 直径
ＨＧ１ 幅寸法
ＨＧ２ 直径
ＵＧ１ 対向する辺の間隔寸法
ＵＧ２ 対向する角の間隔寸法
ＵＧ３ 直径 1 Outdoor Unit 2 Housing 21 Bottom Plate 21a Leg 22 Front Panel 221 Blowout Grill 22a Blowout Panel 22b Service Panel 25 Side Panel 252 Cutout 25a Connection Port Arrangement Panel 25b Conduit Panel 26 Top Plate 27 Strut 3G Gas Refrigerant Piping 31G Gas Header 32G Gas side extension part 3L Liquid refrigerant pipe 31L Liquid header part 32L Liquid side extension part 321L Fixed part 33 Buffer member 4 Connection port 42G Gas pipe connection part 42L Liquid pipe connection part 43G Gas branch pipe 43L Liquid branch pipe 43La Bending point 44G Gas side Connection part 44Ga Gas side flare nut 44L Liquid side connection part 44La Liquid side flare nut 45G Gas side union 451G Main shaft part 452G Screw part 453G groove part 45L Liquid side union 451L Main shaft part 452L Screw part 453L Groove part 46L Expansion valve 47 screw mounting member 47 Plate 472 Union plate 472a Front surface 472b Positioning protrusion 472G Gas side insertion hole 472L Liquid side insertion hole 48 Regulation plate 481 Main body portion 481a Positioning flange 481b Mounting surface 481c Back surface 481d Insertion side end portion 481e Screw hole 482G Gas side cutout portion Part 483G Gas side rotation regulating wall 483GS Gas side axial direction regulating surface 483L Liquid side rotation regulating wall 483LS Liquid side axial direction regulating surface 484G Gas side groove fitting rib 484GI Gas side groove introducing portion 484L Liquid side groove fitting rib 484LI Liquid side groove introducing portion 6 Cover member 61 Lower surface part 62 Drainage part 621 Sloping part 622 Drainage channel C Compressor E Outdoor heat exchanger F Blower fan U Electrical equipment unit M Motor MF Motor support HC Heat exchanger room MC Machine room w Lateral dimension d Before and after Dimension in the direction h Dimension in the height direction a Space HL1 Width dimension HL2 Diameter UL1 Interval dimension of opposing sides UL2 Interval dimension of opposing corners UL3 Diameter HG1 Width dimension HG2 Diameter UG1 Interval dimension of opposing sides UG2 Interval of opposing corners Dimensions UG3 diameter

Claims (2)

底板を有し圧縮機と室外熱交換器と液冷媒配管とガス冷媒配管を有する室外機冷媒回路を収める筐体と、前記筐体の側面に配置され複数台の室内機の各々に接続される各液管を前記液冷媒配管に接続するとともに前記複数台の室内機の各々に接続される各ガス管を前記ガス冷媒配管に接続する接続ポートを備える空気調和装置の室外機であって、
前記接続ポートは、複数のガス管接続部と、複数の液管接続部と、複数のガス分岐管と、複数の液分岐管と、複数の膨張弁と、取付部材を有し、
前記各ガス管接続部は、前記ガス分岐管が接続されるガス側ユニオンと、前記ガス管が接続されるガス側接続部を有し、
前記各液管接続部は、前記液分岐管が接続される液側ユニオンと、前記液管が接続される液側接続部を有し、
前記取付部材は、前記複数の液管接続部と前記複数のガス管接続部を前記筐体の上下方向にかつ交互に一列に並べて配置するとともに、前記各液側接続部と前記各ガス側接続部が前記筐体の後方側に臨むように配置し、
前記各ガス分岐管は、一端が前記ガス冷媒配管に接続され、他端が前記ガス側ユニオンに接続され、前記各ガス分岐管が折り曲げられることで同各ガス分岐管の前方側に空間を形成し、
前記各液分岐管は、一端が前記液冷媒配管に接続され、他端が前記液側ユニオンに接続されるとともに、前記底板に対して所定の角度で上方に折り曲げられ、
前記各膨張弁は、前記各液分岐管に組み付けられ、前記各液分岐管の折り曲げられた折り曲げ点よりも上部に、かつ、前記空間に配置される
ことを特徴とする空気調和装置の室外機。 A casing having a bottom plate, which houses a compressor, an outdoor heat exchanger, an outdoor unit refrigerant circuit having a liquid refrigerant pipe and a gas refrigerant pipe, and a side face of the casing, which is connected to each of a plurality of indoor units An outdoor unit of an air conditioner comprising a connection port for connecting each liquid pipe to the liquid refrigerant pipe and connecting each gas pipe connected to each of the plurality of indoor units to the gas refrigerant pipe,
The connection port has a plurality of gas pipe connecting portions, a plurality of liquid pipe connecting portions, a plurality of gas branch pipes, a plurality of liquid branch pipes, a plurality of expansion valves, and a mounting member,
Each gas pipe connecting portion has a gas side union to which the gas branch pipe is connected, and a gas side connecting portion to which the gas pipe is connected,
Each liquid pipe connecting portion has a liquid side union to which the liquid branch pipe is connected, and a liquid side connecting portion to which the liquid pipe is connected,
The mounting member arranges the plurality of liquid pipe connecting portions and the plurality of gas pipe connecting portions in a row in the up-down direction of the casing and alternately so as to arrange the liquid-side connecting portions and the gas-side connecting portions. The part is arranged so as to face the rear side of the housing,
One end of each gas branch pipe is connected to the gas refrigerant pipe, the other end is connected to the gas side union, and each gas branch pipe is bent to form a space in front of each gas branch pipe. Then
Each of the liquid branch pipes, one end is connected to the liquid refrigerant pipe, the other end is connected to the liquid side union, and bent upward at a predetermined angle with respect to the bottom plate,
An air conditioner characterized in that each of the expansion valves is assembled to each of the liquid branch pipes, and is arranged above the bent point of each of the liquid branch pipes and in the space. Equipment outdoor unit. 前記所定の角度は、各々の前記膨張弁が、当該膨張弁の上側に配置される液分岐管に干渉しない角度とされる、
ことを特徴とする請求項１に記載の空気調和装置の室外機。
The predetermined angle is an angle at which each of the expansion valves does not interfere with the liquid branch pipe arranged above the expansion valve,
The outdoor unit for an air conditioner according to claim 1, wherein the outdoor unit is an air conditioner.
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