JP6882716B2 - Outdoor unit of air conditioner - Google Patents

Outdoor unit of air conditioner Download PDF

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JP6882716B2
JP6882716B2 JP2017089894A JP2017089894A JP6882716B2 JP 6882716 B2 JP6882716 B2 JP 6882716B2 JP 2017089894 A JP2017089894 A JP 2017089894A JP 2017089894 A JP2017089894 A JP 2017089894A JP 6882716 B2 JP6882716 B2 JP 6882716B2
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substrate
electrical component
partition plate
support frame
outdoor unit
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JP2018189265A (en
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力生 水口
力生 水口
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Fujitsu General Ltd
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Description

本発明は、空気調和機の室外機に係わり、特に室外機に備えられた電装品ユニットの構造に関する。 The present invention relates to an outdoor unit of an air conditioner, and more particularly to a structure of an electrical component unit provided in the outdoor unit.

屋外に設置された１台の室外機と、空調室内に設置される少なくとも1台以上の室内機が冷媒配管を介して接続されて冷凍サイクルを構成する多室型の空気調和機が知られている。室外機内部は、室外機の筐体の一部を構成する底板に取り付けられた仕切板によって、圧縮機やアキュムレータや配管等が備えられた機械室と、熱交換器や送風ファン等が設置された送風機室とに区画されている。そして、機械室の上部には圧縮機や送風ファン等の装置に駆動電力を供給する電源装置や室外機の運転を制御する制御基板等を備えた電装品ユニットが配置される。 A multi-chamber air conditioner is known in which one outdoor unit installed outdoors and at least one indoor unit installed in an air-conditioning room are connected via a refrigerant pipe to form a refrigeration cycle. There is. Inside the outdoor unit, a machine room equipped with a compressor, accumulator, piping, etc., a heat exchanger, a blower fan, etc. are installed by a partition plate attached to the bottom plate that forms part of the housing of the outdoor unit. It is divided into a blower room. An electrical component unit including a power supply device that supplies drive power to devices such as a compressor and a blower fan, a control board that controls the operation of the outdoor unit, and the like is arranged in the upper part of the machine room.

電装品ユニットの従来例には、仕切板の上に固定される底面板に電源装置や制御基板を備えた上部仕切板と前面板を結合し、上部仕切板と前面板を梁で支える構造となっているものがある。（特許文献１参照） A conventional example of an electrical component unit is a structure in which an upper partition plate and a front plate equipped with a power supply device and a control board are connected to a bottom plate fixed on the partition plate, and the upper partition plate and the front plate are supported by beams. There is something that has become. (See Patent Document 1)

特開２０１２−１５９２２２号公報Japanese Unexamined Patent Publication No. 2012-159222

従来例では、電装部品の一つであるコンデンサが底面板の上に設けられていることで、コンデンサのメンテナンスの際は、電装品ユニットの前面板を外す必要があり、メンテナンスの作業性が良くなかった。 In the conventional example, since the capacitor, which is one of the electrical components, is provided on the bottom plate, it is necessary to remove the front plate of the electrical component unit when maintaining the capacitor, and the workability of maintenance is good. There wasn't.

また、近年、空気調和機の室外機は、設置可能な場所を増やすために筐体の高さを低くしたコンパクトサイズであることが求められている。従来例では、機械室と電装品ユニットが底面板で仕切られており、筐体の高さを低くすることが難しい。 Further, in recent years, the outdoor unit of an air conditioner is required to have a compact size in which the height of the housing is lowered in order to increase the place where it can be installed. In the conventional example, the machine room and the electrical component unit are separated by a bottom plate, and it is difficult to reduce the height of the housing.

本発明は以上述べた問題点を解決し、電装品ユニットのメンテナンス作業性が向上し、かつ筐体の高さを低くしたコンパクトサイズの空気調和機の室外機を提供することを目的とする。 An object of the present invention is to solve the above-mentioned problems and to provide an outdoor unit of a compact size air conditioner in which the maintenance workability of the electrical component unit is improved and the height of the housing is lowered.

上述した課題を解決するために、筐体と、前記筐体の内部を、下部仕切板と前記下部仕切板に載置される電装部仕切板で送風機室と機械室に区切り、前記送風機室には送風ファンと熱交換器を配置し、前記機械室には上部に電装品ユニットと下部にアキュムレータや冷媒配管を含む冷媒回路部品が配置された空気調和機の室外機において、前記電装部仕切板には、前記電装部仕切板の前後の上部両端に橋架されるコ字状の支持枠を備え、前記支持枠には、電装部品を備えた基板と同基板を支える基板固定具が、下方より着脱可能に取り付けられることを特徴とする。 In order to solve the above-mentioned problems, the housing and the inside of the housing are separated into a blower room and a machine room by a lower partition plate and an electrical component partition plate mounted on the lower partition plate, and the housing is divided into a blower room and a machine room. In the outdoor unit of an air conditioner in which a blower fan and a heat exchanger are arranged, and an electrical component unit is arranged at the upper part and a refrigerant circuit component including an accumulator and a refrigerant pipe is arranged at the lower part in the machine room, the electrical component partition plate is provided. Is provided with a U-shaped support frame bridged at both front and rear upper ends of the electrical component partition plate, and the support frame is provided with a substrate provided with electrical components and a substrate fixture that supports the substrate from below. It is characterized by being detachably attached.

また前記基板は板体であり、前記基板固定具は前記基板を囲む固定枠を有し、前記固定枠内側に縁状に設けた基板支持部で前記基板を支え、前記固定枠内に突出した係止爪で前記基板を固定することも含まれる。 Further, the substrate is a plate body, the substrate fixture has a fixing frame surrounding the substrate, the substrate is supported by a substrate support portion provided in an edge shape inside the fixing frame, and the substrate is projected into the fixing frame. It also includes fixing the substrate with a locking claw.

さらに前記支持枠に取り付けられた基板固定具は、前記電装部仕切板との間に隙間が設けられ、同隙間に前記電装部仕切板に取り付けられる他の電装部品が配置されることも含まれる。 Further, the substrate fixture attached to the support frame includes a gap between the substrate fixture and the electrical component partition plate, and other electrical components to be attached to the electrical component partition plate are arranged in the gap. ..

上記のように構成した本発明の空気調和機の室外機は、電装部仕切板の前後の上部両端に橋架されるコ字状の支持枠を備え、支持枠に電装部品を備えた基板と同基板を支える基板固定具が、下方より着脱可能に取り付けられることにより、電装部品を備えた基板を筐体の上部に配置することが可能となり、室外機筐体の高さを低くすることができる。 The outdoor unit of the air conditioner of the present invention configured as described above is provided with a U-shaped support frame bridged at both front and rear upper ends of the electrical component partition plate, and is the same as a substrate having electrical components on the support frame. Since the board fixture that supports the board is detachably attached from below, the board with the electrical components can be placed on the upper part of the housing, and the height of the outdoor unit housing can be lowered. ..

また基板を基板固定具ごと外せることで、メンテナンスの作業性が向上するものである。 Further, by removing the board together with the board fixture, the workability of maintenance is improved.

本発明による空気調和機の室外機の前面側斜視図である。It is a front side perspective view of the outdoor unit of the air conditioner according to this invention. 空気調和機の室外機の背面側斜視図である。It is a rear side perspective view of the outdoor unit of an air conditioner. 空気調和機の室外機の内部構造を示す図である。It is a figure which shows the internal structure of the outdoor unit of an air conditioner. 電装品ユニット周辺の部分拡大図である。It is a partial enlarged view around the electrical component unit. 下部仕切板の説明図である。It is explanatory drawing of the lower partition plate. 電装品ユニットの取付の説明図である。It is explanatory drawing of the installation of an electrical component unit. 電装部仕切板の図である。It is a figure of the partition plate of an electrical part. 電装品ユニットの分解図である。It is an exploded view of an electrical component unit. 電装品ユニットの骨組の説明図である。It is explanatory drawing of the frame of an electrical component unit. 第１電装品ユニットの図で、（ａ）は左側面側斜視図で、（ｂ）は分解図である。It is a figure of the 1st electrical component unit, (a) is a left side perspective view, and (b) is an exploded view. 図８のＡ−Ａ部分断面図である。FIG. 8 is a partial cross-sectional view taken along the line AA of FIG. 電装品ユニットの右側面側斜視図である。It is a right side perspective view of an electrical component unit. トップ基板と基板固定具の説明図である。It is explanatory drawing of a top board and a board fixture. 第３電装品ユニットの組立の説明図である。It is explanatory drawing of the assembly of the 3rd electrical component unit.

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

本発明に係る空気調和機の室外機は屋外に設置され、空調室内に設置される少なくとも1台以上の室内機と冷媒配管を介して接続されて冷凍サイクルを構成する。 The outdoor unit of the air conditioner according to the present invention is installed outdoors and is connected to at least one indoor unit installed in the air conditioning room via a refrigerant pipe to form a refrigeration cycle.

図１と図２に示す空気調和機の室外機１（以下室外機１とする）は、略直方体形状の筐体１１を有している。なお直方体の筐体１１において上面側を上面または上方、上面の対面を底面または下方、後述する吹出口３１のある面を前面または前方、前面の対面を背面側または後方、後述する外気取込口１４１のある面を右側面または右方、右側面の対面を左側面または左方として以下説明する。各部品においても同様である。 The outdoor unit 1 of the air conditioner shown in FIGS. 1 and 2 (hereinafter referred to as the outdoor unit 1) has a housing 11 having a substantially rectangular parallelepiped shape. In the rectangular parallelepiped housing 11, the upper surface side is the upper surface or the upper surface, the upper surface facing surface is the bottom surface or the lower surface, the surface having the air outlet 31 described later is the front surface or the front surface, the front surface facing surface is the back surface side or the rear surface, and the outside air intake port described later. The surface with 141 will be described below as the right side surface or the right side, and the surface facing the right side surface as the left side surface or the left side. The same applies to each part.

筐体１１の外郭は主に鋼板で形成され、筐体１１の前面と左側面は前面パネル３０で覆われている。前面パネル３０の前面の上下２箇所には後述する送風ファン２１に合わせて円形に開口された吹出口３１が設けられている。吹出口３１の周囲は前面パネル３０の鋼板を内側に延ばしてラッパ状に形成されるベルマウス３２を備える。吹出口３１は線材を加工したファンガード３５で覆われて保護されている。前面パネル３０の左側面には横５個×縦７個の長方形状の孔からなる吸込口３３が設けられている。 The outer shell of the housing 11 is mainly made of steel plate, and the front surface and the left side surface of the housing 11 are covered with the front panel 30. Air outlets 31 opened in a circular shape in accordance with the blower fan 21, which will be described later, are provided at two upper and lower positions on the front surface of the front panel 30. Around the air outlet 31, a bell mouth 32 formed in a trumpet shape by extending the steel plate of the front panel 30 inward is provided. The air outlet 31 is covered and protected by a fan guard 35 made of a wire rod. On the left side surface of the front panel 30, a suction port 33 having rectangular holes of 5 horizontal × 7 vertical is provided.

筐体１１の前面の右側と右側面の前面側は、下部の配管カバー１２と上部のサービスパネル１３で覆われている。配管カバー１２とサービスパネル１３は、冷媒配管やケーブル（図示無し）の接続およびメンテナンスのために着脱可能となっている。また筐体１１の右側面の背面側と背面の一部までは背面パネル１４で覆われている。背面パネル１４の右側面下部には後述する電装品ユニット５に外気を取り込む複数の横長孔状の外気取込口１４１が設けられている。 The right side of the front surface of the housing 11 and the front side of the right side surface are covered with the lower piping cover 12 and the upper service panel 13. The piping cover 12 and the service panel 13 are removable for connection and maintenance of the refrigerant pipe and the cable (not shown). Further, the back side of the right side surface of the housing 11 and a part of the back side are covered with the back panel 14. At the lower part of the right side surface of the back panel 14, a plurality of horizontally elongated hole-shaped outside air intake ports 141 for taking in outside air into the electrical component unit 5 described later are provided.

前面パネル３０と配管カバー１２と背面パネル１４は筐体１１の底面となり筐体１１を支える脚部１５１を有する底板１５にネジ止めによって組み付けられ、前面パネル３０とサービスパネル１３と背面パネル１４の上端は天板１６で覆われる。天板１６はネジ止めによって前面パネル３０と配管カバー１２と背面パネル１４に組み付けられている。なお図１においてサービスパネル１３の上部は内部の電装品ユニット５を図示するために切り欠いてある。 The front panel 30, the piping cover 12, and the back panel 14 are attached to the bottom plate 15 having the legs 151 which is the bottom surface of the housing 11 and supports the housing 11 by screwing, and the front panel 30, the service panel 13, and the upper ends of the back panel 14 are assembled. Is covered with a top plate 16. The top plate 16 is attached to the front panel 30, the piping cover 12, and the back panel 14 by screwing. In FIG. 1, the upper part of the service panel 13 is cut out to show the internal electrical component unit 5.

図３に示すように筐体１１の内部は、底板１５に立設されて前面パネル３０の右端がネジ止めされ、筐体１１の側面に平行で底板１５から後述する電装部仕切板５２の下端に至るまでの高さを有する下部仕切板２４と、下部仕切板２４の前面側に載置される電装部仕切板５２によって前面パネル３０側の送風機室ＦＲとサービスパネル１３側の機械室ＭＲとに区切られている。また下部仕切板２４の背面側の上には後述する上部仕切板２６も備える。 As shown in FIG. 3, the inside of the housing 11 is erected on the bottom plate 15, the right end of the front panel 30 is screwed, and the lower end of the electrical component partition plate 52 described later from the bottom plate 15 is parallel to the side surface of the housing 11. The blower room FR on the front panel 30 side and the machine room MR on the service panel 13 side are provided by the lower partition plate 24 having a height up to the above and the electrical component partition plate 52 mounted on the front side of the lower partition plate 24. It is divided into. Further, an upper partition plate 26, which will be described later, is also provided on the back side of the lower partition plate 24.

送風機室ＦＲには、上下に２個のプロペラファン型の送風ファン２１が設けられている。送風ファン２１は底板１５に支持されたモータ支持体１９に固定されたファンモータ２０に軸支されている。 The blower chamber FR is provided with two propeller fan type blower fans 21 at the top and bottom. The blower fan 21 is pivotally supported by a fan motor 20 fixed to a motor support 19 supported by a bottom plate 15.

また、送風機室ＦＲには、左側面から背面に沿って上面視でＬ字形状である熱交換器１８が配置されている。熱交換器１８は並列した複数のフィン１８１と、同フィン１８１に直交するように蛇行状に配設された伝熱管１８２とからなる。図２を参照して筐体１１の背面側は背面パネル１４の側端と前面パネル３０の側端との間に熱交換器１８が露出して、送風機室ＦＲに外気を取り入れるための背面吸込口２２となり、背面吸込口２２には保護部材２３が設けられている。 Further, in the blower chamber FR, a heat exchanger 18 having an L-shape in top view is arranged from the left side surface to the back surface. The heat exchanger 18 includes a plurality of fins 181 arranged in parallel and a heat transfer tube 182 arranged in a meandering shape so as to be orthogonal to the fins 181. With reference to FIG. 2, on the back side of the housing 11, the heat exchanger 18 is exposed between the side end of the back panel 14 and the side end of the front panel 30, and the back suction for taking in outside air into the blower chamber FR is performed. The port 22 is provided, and the back suction port 22 is provided with a protective member 23.

図３に戻って機械室ＭＲには、上部に電装品ユニット５が配置され、下部にアキュムレータ４０や圧縮機４１や四方弁４２および冷媒配管４３と膨張弁４４等の冷媒回路部品４が配置されている。 Returning to FIG. 3, in the machine room MR, the electrical component unit 5 is arranged at the upper part, and the accumulator 40, the compressor 41, the four-way valve 42, and the refrigerant circuit parts 4 such as the refrigerant pipe 43 and the expansion valve 44 are arranged at the lower part. ing.

上記の構成により空気調和機の室外機１は、例えば冷房運転時に熱交換器１８の伝熱管１８２の内部を流通する高温・高圧の冷媒の熱を、伝熱管１８２からフィン１８１に伝熱するとともに、このフィン１８１が、送風ファン２１により吸込口３３と背面吸込口２２から吸い込まれた空気によって冷却されることで熱交換するものである。 With the above configuration, the outdoor unit 1 of the air conditioner transfers the heat of the high-temperature and high-pressure refrigerant flowing inside the heat transfer tube 182 of the heat exchanger 18 from the heat transfer tube 182 to the fins 181 during cooling operation, for example. The fins 181 exchange heat by being cooled by the air sucked from the suction port 33 and the rear suction port 22 by the blower fan 21.

図４に示すように熱交換器１８は熱交換器１８の右端を囲む熱交換器取付板１８３を備える。熱交換器取付板１８３は複数の孔を有し、この孔に伝熱管１８２が貫通して他の伝熱管１８２や冷媒配管４３と接続されている。図示しないが熱交換器取付板１８３の下端が底板１５に固定されることで熱交換器１８が立設される。 As shown in FIG. 4, the heat exchanger 18 includes a heat exchanger mounting plate 183 that surrounds the right end of the heat exchanger 18. The heat exchanger mounting plate 183 has a plurality of holes, through which the heat transfer tube 182 penetrates and is connected to another heat transfer tube 182 and the refrigerant pipe 43. Although not shown, the heat exchanger 18 is erected by fixing the lower end of the heat exchanger mounting plate 183 to the bottom plate 15.

熱交換器取付板１８３は前端が熱交換器１８側に直角に折れ曲がり熱交角部１８５が形成される。熱交換器取付板１８３と熱交角部１８５に下部仕切板２４および後述する上部仕切板２６が組み付けられてネジ止めされる。 The front end of the heat exchanger mounting plate 183 is bent at a right angle to the heat exchanger 18 side to form a heat exchange angle portion 185. The lower partition plate 24 and the upper partition plate 26, which will be described later, are assembled and screwed to the heat exchanger mounting plate 183 and the heat exchange angle portion 185.

図５を合わせて参照して下部仕切板２４は機械室ＭＲ内部に配置されている冷媒回路部品４（アキュムレータ４０、圧縮機４１、冷媒配管４３等）に沿って、筐体１１の側面に平行な前面側の第１仕切面２４１と、背面側で筐体１１の背面に平行で熱交換器取付板１８３に固定される第２仕切面２４２と、第１仕切面２４１と第２仕切面２４２の間を傾斜面で繋ぐ第３仕切面２４３を有する。下部仕切板２４の前端は機械室ＭＲ側に折れ曲がった下前面フランジ部２４４を備える。また下部仕切板２４の上端は機械室ＭＲ側に折れ曲がった受け部２５を備える。第1仕切面２４１の上に位置する受け部２５はレール用受け部２５１とする。レール用受け部２５１の第３仕切面２４３側の端には、後述するストッパー５７が止まる位置で部分的に機械室ＭＲ側に延出したストッパー用延出部２５１ａが設けられる。 With reference to FIG. 5, the lower partition plate 24 is parallel to the side surface of the housing 11 along the refrigerant circuit components 4 (accumulator 40, compressor 41, refrigerant pipe 43, etc.) arranged inside the machine room MR. The first partition surface 241 on the front side, the second partition surface 242 on the back side parallel to the back surface of the housing 11 and fixed to the heat exchanger mounting plate 183, the first partition surface 241 and the second partition surface 242. It has a third partition surface 243 that connects the spaces with an inclined surface. The front end of the lower partition plate 24 includes a lower front flange portion 244 bent toward the MR side of the machine room. Further, the upper end of the lower partition plate 24 is provided with a receiving portion 25 bent toward the MR side of the machine room. The receiving portion 25 located on the first partition surface 241 is a rail receiving portion 251. At the end of the rail receiving portion 251 on the third partition surface 243 side, a stopper extending portion 251a that partially extends toward the machine room MR side is provided at a position where the stopper 57, which will be described later, stops.

下部仕切板２４の第２仕切面２４２の上方には上部仕切板２６が設けられる。上部仕切板２６は右端が背面側に折れ曲がり熱交換器取付板１８３にネジ止めされる。上部仕切板２６の左端は電装部仕切板５２に固定される。上部仕切板２６の下端は下部仕切板２４の受け部２５と当接するように折れ曲がって形成された固定片２６２、固定片２６３が設けられている。図６を合わせて参照して上部仕切板２６の左上部には送風機室ＦＲ方向に向かい徐々に立ち上がる差込爪２６４が設けられている。上部仕切板２６の右上部には内側に延出した固定具２６５が設けられている。 An upper partition plate 26 is provided above the second partition surface 242 of the lower partition plate 24. The right end of the upper partition plate 26 is bent toward the back side and screwed to the heat exchanger mounting plate 183. The left end of the upper partition plate 26 is fixed to the electrical component partition plate 52. The lower end of the upper partition plate 26 is provided with a fixing piece 262 and a fixing piece 263 that are bent so as to come into contact with the receiving portion 25 of the lower partition plate 24. With reference to FIG. 6, an insertion claw 264 that gradually rises toward the blower chamber FR direction is provided in the upper left portion of the upper partition plate 26. A fixture 265 extending inward is provided at the upper right portion of the upper partition plate 26.

図５と図７に示すように電装部仕切板５２は鋼板を折り曲げ加工した下部仕切板２４の第１仕切面２４１の上に位置する取付面５３と、取付面５３の背面側から直角に曲がった角部５４１と角部５４１から上部仕切板２６まで延出して上部仕切板２６に固定される固定面５４と、取付面５３の前端から多段に折れ曲がり凹部となる支柱取付部５２１と、支柱取付部５２１の前面で下前面フランジ部２４４と面一となる上前面フランジ部５２２で形成される。 As shown in FIGS. 5 and 7, the electrical component partition plate 52 is bent at a right angle from the mounting surface 53 located on the first partition surface 241 of the lower partition plate 24 obtained by bending the steel plate and the back side of the mounting surface 53. A fixing surface 54 extending from the square portion 541 and the corner portion 541 to the upper partition plate 26 and being fixed to the upper partition plate 26, a strut mounting portion 521 that is bent in multiple stages from the front end of the mounting surface 53 to form a recess, and strut mounting. It is formed by an upper front flange portion 522 that is flush with the lower front flange portion 244 on the front surface of the portion 521.

さらに支柱取付部５２１の内側に固定され右側が上前面フランジ部２４４よりも突出する支柱５５と、取付面５３と固定面５４の下端角部を結合し、先端が下方に折れ曲がった折曲片５６１で第３仕切面２４３の受け部２５と当接する角部固定板５６を備える。 Further, a bent piece 561 which is fixed to the inside of the support column mounting portion 521 and whose right side protrudes from the upper front flange portion 244, and the mounting surface 53 and the lower end corner portion of the fixing surface 54 are connected and the tip is bent downward. A corner fixing plate 56 that comes into contact with the receiving portion 25 of the third partition surface 243 is provided.

取付面５３の下端は送風機室ＦＲ側に折れ曲がったレール面５８となる。またレール面５８はレール面５８の端が下方に折れ曲ったレールガイド部５８１を備える。また取付面５３の機械室ＭＲ側の下部には、レール面５８より下方に延出したストッパー５７が設けられ、さらに前端の支柱取付部５２１の底面には機械室ＭＲ側に下方に折れ曲がった前ガイド部５２３を備える。 The lower end of the mounting surface 53 is a rail surface 58 bent toward the FR side of the blower chamber. Further, the rail surface 58 includes a rail guide portion 581 in which the end of the rail surface 58 is bent downward. Further, a stopper 57 extending downward from the rail surface 58 is provided at the lower part of the mounting surface 53 on the machine room MR side, and further, the bottom surface of the support column mounting portion 521 at the front end is before being bent downward toward the machine room MR side. A guide unit 523 is provided.

レールガイド部５８１の内側から前ガイド部５２３の内側までの左右幅Ｗ１は下部仕切板２４のレール用受け部２５１の左右幅と同じである。またレール面５８の左右幅Ｗ２はストッパー用延出部２５１ａの左右幅と同じである。よって、ストッパー用延出部２５１ａがレールガイド部５８１とストッパー５７の間で規制され、レール用受け部２５１が、レールガイド部５８１と前ガイド部５２３の間で規制され、ガタつきを防止する。 The left-right width W1 from the inside of the rail guide portion 581 to the inside of the front guide portion 523 is the same as the left-right width of the rail receiving portion 251 of the lower partition plate 24. The left-right width W2 of the rail surface 58 is the same as the left-right width of the stopper extension portion 251a. Therefore, the extension portion 251a for the stopper is regulated between the rail guide portion 581 and the stopper 57, and the receiving portion 251 for the rail is regulated between the rail guide portion 581 and the front guide portion 523 to prevent rattling.

次に電装品ユニット５の構成について説明する。図８に示すように電装品ユニット５の基本構造は、電装部仕切板５２に取り付けられた電装部品からなる第１電装品ユニット６と、第１電装品ユニット６の前端に一端が支持され、サービスパネル１３側に配置され第１電装品ユニット６に直交する第２電装品ユニット７と、第１電装品ユニット６と第２電装品ユニット７の上に取り付けられ筐体１１の上面に沿って配置される第３電装品ユニット８の３面で形成される。それぞれが略直角に交わるように組み立てられることで、図４に示す電装品ユニット５内の内部に直方体状の空間が形成される。この空間が配管収容部４５となり、図３および図６に示す機械室ＭＲに配置される冷媒回路部品４の一部、具体的には膨張弁４４と、アキュムレータ４０および冷媒配管４３の上部を収容することが可能となる。これにより筐体１１の高さを低く形成することができ、コンパクトな室外機１となる。 Next, the configuration of the electrical component unit 5 will be described. As shown in FIG. 8, the basic structure of the electrical component unit 5 is a first electrical component unit 6 composed of electrical components attached to the electrical component partition plate 52, and one end supported by the front end of the first electrical component unit 6. A second electrical component unit 7 arranged on the service panel 13 side and orthogonal to the first electrical component unit 6, and mounted on the first electrical component unit 6 and the second electrical component unit 7 along the upper surface of the housing 11. It is formed by three surfaces of the third electrical component unit 8 to be arranged. By assembling each of them so as to intersect at a substantially right angle, a rectangular parallelepiped space is formed inside the electrical component unit 5 shown in FIG. This space serves as a pipe accommodating portion 45, and accommodates a part of the refrigerant circuit components 4 arranged in the machine room MR shown in FIGS. 3 and 6, specifically, the expansion valve 44, the accumulator 40, and the upper part of the refrigerant pipe 43. It becomes possible to do. As a result, the height of the housing 11 can be made low, and the outdoor unit 1 becomes compact.

図９に示すように電装品ユニット５の骨組は、第１電装品ユニット６の前述した電装部仕切板５２と、第２電装品ユニット７の基板固定板７１と、第３電装品ユニット８の支持枠８１で形成される。 As shown in FIG. 9, the framework of the electrical component unit 5 includes the above-mentioned electrical component partition plate 52 of the first electrical component unit 6, the board fixing plate 71 of the second electrical component unit 7, and the third electrical component unit 8. It is formed by a support frame 81.

また、図４と図８と図１０に示すように第１電装品ユニット６の電装部仕切板５２と、第２電装品ユニット７の基板固定板７１は、それぞれ両面に電装部品を設けることが可能であり、第３電装品ユニット８の支持枠８１には着脱可能に取り付けられる基板固定組８４のトップ基板８２に電装部品を設けることができ、大容量化に伴う大型の基板や電源部品を十分に配置することが可能となる。 Further, as shown in FIGS. 4, 8 and 10, the electrical component partition plate 52 of the first electrical component unit 6 and the board fixing plate 71 of the second electrical component unit 7 may be provided with electrical components on both sides, respectively. It is possible, and electrical components can be provided on the top board 82 of the board fixing assembly 84 that is detachably attached to the support frame 81 of the third electrical component unit 8, and large boards and power supply parts due to the increase in capacity can be provided. It is possible to arrange it sufficiently.

第３電装品ユニット８の支持枠８１は鋼板で形成され支持枠８１の上と下にそれぞれ内側に曲がった補強部８１７、８１８を備えた断面がコ字状の枠であり、図９に示すように電装部仕切板５２の前後の上部両端に橋架される。支持枠８１は電装部仕切板５２の固定面５４の上端にネジ止めされる後アーム部８１１と、後アーム部８１１から直角に曲がった右アーム部８１２と、右アーム部８１２から直角に曲がり途中の一部が前方に傾斜して上前面フランジ部５２２の上端にネジ止めされる前アーム部８１３からなる。 The support frame 81 of the third electrical component unit 8 is a frame having a U-shaped cross section, which is formed of a steel plate and has reinforcing portions 817 and 818 bent inward above and below the support frame 81, respectively, as shown in FIG. It is bridged to both front and rear upper ends of the electrical component partition plate 52. The support frame 81 has a rear arm portion 811 screwed to the upper end of the fixed surface 54 of the electrical component partition plate 52, a right arm portion 812 bent at a right angle from the rear arm portion 811, and a right arm portion 812 bent at a right angle from the right arm portion 812. A part of the front arm portion 813 is inclined forward and screwed to the upper end of the upper front flange portion 522.

後アーム部８１１には上部仕切板２６の差込爪２６４に対向する位置に差込爪用孔８１１ａを有し、固定具２６５に対向する位置に背面側に曲がった後取付具８１４が設けられている。後取付具８１４の左右２カ所には係合孔８１１ｂを有する。 The rear arm portion 811 has an insertion claw hole 811a at a position facing the insertion claw 264 of the upper partition plate 26, and a rear attachment 814 bent to the back side is provided at a position facing the fixture 265. ing. Engagement holes 811b are provided at two positions on the left and right of the rear mounting tool 814.

また右アーム部８１２の前方には右側に曲がった右取付具８１５がある。前アーム部８１３には前アーム部８１３の前面から底面に沿って曲がりさらに下方に曲がったクランク状の前取付具８１６がある。前取付具８１６の一部はさらに前方に曲がり引掛爪８１６ａとなる。 Further, in front of the right arm portion 812, there is a right attachment 815 bent to the right. The front arm portion 813 has a crank-shaped front attachment 816 that is bent from the front surface of the front arm portion 813 along the bottom surface and further bent downward. A part of the front attachment 816 bends further forward to become a hooking claw 816a.

図７を合わせて参照して前述した支柱５５は電装部仕切板５２の下端から支持枠８１の下までの高さを有し、支柱５５の前面側には上下２カ所にヒンジ用スリット５５１を備える。このヒンジ用スリット５５１は左側の上端部に上方に長い溝５５２を備え、右側の下端部に下方に長い溝５５３を備える。 The support column 55 described above with reference to FIG. 7 has a height from the lower end of the electrical component partition plate 52 to the bottom of the support frame 81, and hinge slits 551 are provided at two upper and lower positions on the front surface side of the support frame 55. Be prepared. The hinge slit 551 is provided with a long groove 552 upward at the upper end on the left side and a long groove 553 downward at the lower end on the right side.

基板固定板７１は、鋼板で形成され、筐体１１の前面と平行な取付面７１０と、取付面７１０の下部から前方に傾く端子台取付面７１１と、取付面７１０と端子台取付面７１１から左前方に傾斜した傾斜面７１２を備える。傾斜面７１２の左端には前面と平行となるヒンジ面７１３と、ヒンジ面７１３の端から支柱５５のヒンジ用スリット５５１に対向する位置にヒンジ片７１４が上下２カ所に左側に向けて突出するように設けられている。 The board fixing plate 71 is formed of a steel plate, and is formed from a mounting surface 710 parallel to the front surface of the housing 11, a terminal block mounting surface 711 tilting forward from the lower part of the mounting surface 710, and a mounting surface 710 and a terminal block mounting surface 711. It is provided with an inclined surface 712 inclined to the left front. At the left end of the inclined surface 712, a hinge surface 713 parallel to the front surface and a hinge piece 714 project from the end of the hinge surface 713 toward the left side at two positions above and below the position facing the hinge slit 551 of the support column 55. It is provided in.

基板固定板７１は、ヒンジ面７１３から傾斜面７１２に掛けて切り欠かれた開口部７３を有する。開口部７３は基板固定板７１の高さの半分ほどの高さを有し基板固定板７１の上下中央の位置に大きく開口されている。 The substrate fixing plate 71 has an opening 73 cut out from the hinge surface 713 to the inclined surface 712. The opening 73 has a height of about half the height of the substrate fixing plate 71, and is largely opened at a position at the center of the top and bottom of the substrate fixing plate 71.

傾斜面７１２には、開口部７３の近傍で上下２カ所に孔状のコネクタ中継部７４を備える。コネクタ中継部７４には中継コネクタ７４１が嵌められる。 The inclined surface 712 is provided with hole-shaped connector relay portions 74 at two upper and lower positions in the vicinity of the opening 73. The relay connector 741 is fitted in the connector relay unit 74.

また基板固定板７１の取付面７１０と端子台取付面７１１の右端は後方に曲がりさらに右側に曲がって背面パネル１４に固定されるフランジ部７１６となる。また取付面７１０の上端に係止孔７１５を有する。 Further, the right ends of the mounting surface 710 and the terminal block mounting surface 711 of the board fixing plate 71 are bent rearward and further to the right to form a flange portion 716 fixed to the back panel 14. Further, it has a locking hole 715 at the upper end of the mounting surface 710.

基板取付板７１は前方から支柱５５のヒンジ用スリット５５１の溝５５２にヒンジ片７１４を挿入して取付面７１０を後方に移動させるとヒンジ片７１４がヒンジ用スリット５５１の溝５５３に嵌り仮固定される。次に取付面７１０の上端にある係止孔７１５に支持枠８１の前取付具８１６の引掛爪８１６ａを引っ掛けて係止孔７１５横のネジ孔と前取付具８１６のネジ孔をネジ止めすることで、電装品ユニット５の骨組が組み立てられる。 When the hinge piece 714 is inserted into the groove 552 of the hinge slit 551 of the support column 55 from the front and the mounting surface 710 is moved backward, the hinge piece 714 fits into the groove 553 of the hinge slit 551 and is temporarily fixed. Slit. Next, the hooking claw 816a of the front mounting tool 816 of the support frame 81 is hooked on the locking hole 715 at the upper end of the mounting surface 710, and the screw hole beside the locking hole 715 and the screw hole of the front mounting tool 816 are screwed. Then, the skeleton of the electrical component unit 5 is assembled.

実際は電装品ユニット５には後述するヒートシンク６３１、６３２、６３３とインバータ基板６１１とコンデンサ８２１の各種電装部品が取り付けられていることと、電装品ユニット５自体が鋼板で形成されていることで重量は約１５キロにも及ぶ。これを容易に下部仕切板２４に載置させるために、まず図６に示すように電装品ユニット５を下部仕切板２４の高さまで上げる。次に電装部仕切板５２のレールガイド部５８１とストッパー５７の間に下部仕切板２４のレール用受け部２５１を挟むように位置を合わせてレール用受け部２５１の上にレール面５８を載せる。そして電装品ユニット５を後方へスライドさせる。そのまま移動させると角部固定板５６の折曲片５６１が第３仕切面２４３の受け部２５に当接して停止する。この時、下部仕切板２４のストッパー用延出部２５１ａがレールガイド部５８１とストッパー５７の間で規制され、レール用受け部２５１の前方を、レールガイド部５８１と前ガイド部５２３の間で規制することで電装品ユニット５の左右方向のズレを防ぎ仮固定される。 Actually, the weight of the electrical component unit 5 is increased because various electrical components such as heat sinks 631, 632, 633, an inverter board 611, and a capacitor 821, which will be described later, are attached to the electrical component unit 5, and the electrical component unit 5 itself is made of steel plate. It stretches for about 15 kilometers. In order to easily place this on the lower partition plate 24, first, as shown in FIG. 6, the electrical component unit 5 is raised to the height of the lower partition plate 24. Next, the rail surface 58 is placed on the rail receiving portion 251 so as to sandwich the rail receiving portion 251 of the lower partition plate 24 between the rail guide portion 581 of the electrical component partition plate 52 and the stopper 57. Then, the electrical component unit 5 is slid backward. If it is moved as it is, the bent piece 561 of the corner fixing plate 56 comes into contact with the receiving portion 25 of the third partition surface 243 and stops. At this time, the stopper extension portion 251a of the lower partition plate 24 is restricted between the rail guide portion 581 and the stopper 57, and the front of the rail receiving portion 251 is restricted between the rail guide portion 581 and the front guide portion 523. By doing so, the electrical component unit 5 is temporarily fixed by preventing the electrical component unit 5 from being displaced in the left-right direction.

また、電装品ユニット５の移動に伴って、上部仕切板２６の差込爪２６４が支持枠部８１の差込爪用孔８１１ａに嵌ることで電装品ユニット５の上端も仮固定される。 Further, as the electrical component unit 5 moves, the insertion claw 264 of the upper partition plate 26 fits into the insertion claw hole 811a of the support frame portion 81, so that the upper end of the electrical component unit 5 is also temporarily fixed.

仮固定された電装品ユニット５は、支持枠８１の後取付具８１４と上部仕切板２６の固定具２６５とをネジ止めする。そして図１に示す支持枠８１の右取付具８１５と基板取付板７１のフランジ７１６とを背面パネル１４にネジ止めすることで機械室ＭＲに固定される。 The temporarily fixed electrical component unit 5 screws the rear mounting tool 814 of the support frame 81 and the fixing tool 265 of the upper partition plate 26. Then, the right mounting tool 815 of the support frame 81 and the flange 716 of the board mounting plate 71 shown in FIG. 1 are fixed to the machine room MR by screwing them to the back panel 14.

次に図７と図８と図１０〜図１２に示すように、第１電装品ユニット６には電装部仕切板５２の取付面５３に鋼板でなる取付台６１を介して各電装部品が取り付けられる。電装部品には後方（取付台６１の右側）にインバータ基板６１１と前方（取付台６１の左側）に上下に並べた二つのファンモータドライブ基板６２と、ファンモータドライブ基板６２の上にダイオードブリッジ６１４を備える。いずれも発熱素子を実装した基板や発熱部品である。そこでこれら電装部品を冷却するために、電装部仕切板５２と取付台６１はインバータ基板６１１とファンモータドライブ基板６２とダイオードブリッジ６１４に合わせてそれぞれ取付孔５３１、６１６を有し、電装部仕切板５２の送風機室ＦＲ側には取付孔５３１を覆いインバータ基板６１１とファンモータドライブ基板６２とダイオードブリッジ６１４を冷却するヒートシンク６３１、６３２、６３３がそれぞれ設けられている。 Next, as shown in FIGS. 7, 8 and 10 to 12, each electrical component is attached to the first electrical component unit 6 via a mounting base 61 made of a steel plate on the mounting surface 53 of the partition plate 52 of the electrical component. Be done. The electrical components include an inverter board 611 at the rear (right side of the mounting base 61), two fan motor drive boards 62 arranged vertically at the front (left side of the mounting base 61), and a diode bridge 614 on the fan motor drive board 62. To be equipped. Both are substrates and heat-generating components on which heat-generating elements are mounted. Therefore, in order to cool these electrical components, the electrical component partition plate 52 and the mounting base 61 have mounting holes 531 and 616 in accordance with the inverter board 611, the fan motor drive board 62, and the diode bridge 614, respectively, and the electrical component partition plate Heat sinks 631, 632, and 633 that cover the mounting holes 531 and cool the inverter board 611, the fan motor drive board 62, and the diode bridge 614 are provided on the FR side of the blower room 52 of 52, respectively.

ヒートシンク６３１、６３２、６３３は、上下に複数の放熱用フィン６３ａが並べられ後述する空気Ｋ１が横に流れるように通風路６３２が形成されている。
並んだ In the heat sinks 631, 632, and 633, a plurality of heat radiating fins 63a are arranged one above the other, and a ventilation path 632 is formed so that air K1, which will be described later, flows laterally.
got in line

インバータ基板６１１の上には発熱部品であるリアクタ６１３を備え、リアクタ６１３は、前面側と背面側とが開口されてコ字状に折り曲げたダクト６５１で覆われており、電装部仕切板５２と取付台６１はリアクタ６１３に合わせて通風口５３２を有する。電装部仕切板５２の送風機室ＦＲ側には通風口５３２を覆い上部に庇を設けた横長スリット状の通風孔６４１が複数設けられた遮水蓋６４が設けられている。 A reactor 613, which is a heat generating component, is provided on the inverter board 611, and the reactor 613 is covered with a duct 651 in which the front side and the back side are opened and bent in a U shape, and is covered with the electrical component partition plate 52. The mounting base 61 has a ventilation port 532 in accordance with the reactor 613. On the FR side of the blower chamber of the electrical component partition plate 52, a water shield lid 64 is provided, which is provided with a plurality of horizontally long slit-shaped ventilation holes 641 that cover the ventilation port 532 and have an eaves at the top.

電装部仕切板５２の取付面５３には、固定面５４との角部５４１（電装部仕切板の背面側）からヒートシンク６３１の一端側との間に空気取込口５９を備える。空気取込口５９はプレス加工で背面側に向けて機械室ＭＲ側に傾斜した縦長スリット状の複数の通気孔５９１からなり、横に５列、縦に２段で設けられている。 The mounting surface 53 of the electrical component partition plate 52 is provided with an air intake port 59 between the corner portion 541 (the back side of the electrical component partition plate) and the one end side of the heat sink 631. The air intake port 59 is formed of a plurality of vertically long slit-shaped ventilation holes 591 that are pressed toward the back side and inclined toward the MR side of the machine room, and are provided in five rows horizontally and two steps vertically.

取付台６１は空気取込口５９の周囲に、機械室ＭＲ側に突出して通気孔５９１の前方２個分に被り、空気取込口５９に空気Ｋ１を導く通気ガイド部６１７を設ける。通気ガイド部６１７にある開口部は空気流入口６１５になる。 The mounting base 61 is provided around the air intake port 59 with a ventilation guide portion 617 that projects toward the MR side of the machine room and covers the two front holes 591, and guides the air K1 to the air intake port 59. The opening in the ventilation guide portion 617 becomes the air inlet 615.

空気取込口５９は送風機室ＦＲ側ではヒートシンク６３１に隣接した位置となり、ヒートシンク６３１と同じ高さを有する。そして空気取込口５９とヒートシンク６３１は導風カバー６５２で囲われる。 The air intake port 59 is located adjacent to the heat sink 631 on the FR side of the blower chamber, and has the same height as the heat sink 631. The air intake port 59 and the heat sink 631 are surrounded by the air guide cover 652.

導風カバー６５２は、空気取込口５９側が傾斜した導風面６５３を備え、ヒートシンク６３１の前方に空気出口６５４を有する。 The air guide cover 652 includes an air guide surface 653 with an inclined air intake port 59 side, and has an air outlet 654 in front of the heat sink 631.

次に電装品ユニット５内の空気の流れを説明する。送風ファン２１により引っ張られ背面パネル１４の外気取込口１４１から流入した空気は機械室ＭＲ内を上昇し、電装品ユニット５内の電装部品を冷却して、ダクト６５１から遮水蓋６４に至り通気孔６４１から送風ファン２１に直接向かって送風機室ＦＲに流れる空気Ｋ２となる。 Next, the flow of air in the electrical component unit 5 will be described. The air pulled by the blower fan 21 and flowing in from the outside air intake port 141 of the rear panel 14 rises in the machine room MR, cools the electrical components in the electrical component unit 5, and reaches the impermeable lid 64 from the duct 651. The air K2 flows directly from the ventilation hole 641 toward the blower fan 21 and into the blower room FR.

また、空気の一部である空気Ｋ１は、取付台６１の空気流入口６１５に入り、取付台６１の突出した通気ガイド部６１７に沿って空気取込口５９から導風カバー６５２に流入し、導風カバー６５２の導風面６５３に沿ってヒートシンク６３１の通風路６３ｂを通り、ヒートシンク６３１を冷却して、空気出口６５４から送風機室ＦＲに至る。 Further, the air K1 which is a part of the air enters the air inlet 615 of the mounting base 61 and flows into the air guide cover 652 from the air intake port 59 along the protruding ventilation guide portion 617 of the mounting base 61. The heat sink 631 is cooled through the ventilation passage 63b of the heat sink 631 along the air guide surface 653 of the air guide cover 652, and reaches the blower chamber FR from the air outlet 654.

熱交換される前の空気を直接ヒートシンク６３１に流す導風カバー６５２を設けたことで、ヒートシンク６３１を搭載した発熱素子を実装した基板や発熱部品を効率的に冷却できる。また導風カバー６５２と、機械室ＭＲ側に傾斜した縦長スリット状の通気孔５９１と、空気取込口５９の一部を覆う通気ガイド部６１７により、３重の遮水構造としたことで送風機ＦＲ室からの水の侵入を防ぐことができる。 By providing the air guide cover 652 that allows the air before the heat exchange to flow directly to the heat sink 631, the substrate and the heat generating component on which the heat generating element mounted on the heat sink 631 is mounted can be efficiently cooled. In addition, the air guide cover 652, the vertically long slit-shaped ventilation hole 591 inclined toward the MR side of the machine room, and the ventilation guide portion 617 that covers a part of the air intake port 59 are used to form a triple water-impervious structure. It is possible to prevent the intrusion of water from the FR room.

また電装品ユニット５内の電装部品を冷却して遮水蓋６４から送風ファン２１に直接向かって送風機室ＦＲに流れる空気Ｋ２と、導風カバー６５２を流れてヒートシンク６３１を冷却して送風機室ＦＲの前方に流れる空気Ｋ１とは流出方向が異なり、互いに影響することがなく効率的に電装品を冷却して放熱効率を高めることができる。 Further, the air K2 that cools the electrical components in the electrical component unit 5 and flows directly from the impermeable lid 64 toward the blower fan 21 to the blower chamber FR and the air guide cover 652 to cool the heat sink 631 to cool the blower chamber FR. The outflow direction is different from that of the air K1 flowing in front of the air K1, and the electrical components can be efficiently cooled and the heat dissipation efficiency can be improved without affecting each other.

第１電装品ユニット６は、前述したように取付台６１の前方に上下に並べた二つのファンモータドライブ基板６２を備える。ファンモータドライブ基板６２には第１コネクタ６２１と第２コネクタ６２２を備える。第１コネクタ６２１はファンモータ２０を駆動する第１ケーブル４６と接続され、第２コネクタ６２２はファンモータ２０の信号線である第２ケーブル４７が接続される。 As described above, the first electrical component unit 6 includes two fan motor drive boards 62 arranged vertically in front of the mounting base 61. The fan motor drive board 62 includes a first connector 621 and a second connector 622. The first connector 621 is connected to the first cable 46 that drives the fan motor 20, and the second connector 622 is connected to the second cable 47 that is the signal line of the fan motor 20.

第１コネクタ６２１は、ファンモータドライブ基板６２の前方に配置され、図４と図１２に示すように、第２電装品ユニット７の開口部７３からは第１コネクタ６２１が視認される。 The first connector 621 is arranged in front of the fan motor drive board 62, and as shown in FIGS. 4 and 12, the first connector 621 is visible from the opening 73 of the second electrical component unit 7.

図３を参照してファンモータ２０に接続された第１ケーブル４６、第２ケーブル４７は下部仕切板２４の第１仕切面２４１にある引出口２４５から機械室ＭＲに入る。第１ケーブル４６の先端にはコネクタ４６１があり、このコネクタ４６１を開口部７３から直接ファンモータドライブ基板６２の第１コネクタ６２１に差し込むことができる。 The first cable 46 and the second cable 47 connected to the fan motor 20 with reference to FIG. 3 enter the machine room MR from the outlet 245 on the first partition surface 241 of the lower partition plate 24. There is a connector 461 at the tip of the first cable 46, and this connector 461 can be directly inserted into the first connector 621 of the fan motor drive board 62 from the opening 73.

また、第２コネクタ６２２は傾斜面７１２にあるコネクタ中継部７４に設けた中継コネクタ７４１と接続されており、第２ケーブル４７をコネクタ中継部７４の中継コネクタ７４１と接続することで第２コネクタ６２２と接続できる。これにより、電装品ユニット５の第２電装品ユニット７を開かなくても、第１ケーブル４６、第２ケーブル４７の接続やメンテナンスが可能となり、作業性が向上する。 Further, the second connector 622 is connected to the relay connector 741 provided in the connector relay portion 74 on the inclined surface 712, and the second connector 622 is connected to the relay connector 741 of the connector relay portion 74 by connecting the second cable 47 to the second connector 622. Can be connected to. As a result, the first cable 46 and the second cable 47 can be connected and maintained without opening the second electrical component unit 7 of the electrical component unit 5, and workability is improved.

第３電装品ユニット８は、図１３に示すように、トップ基板８２が基板固定具８３に固定されて図１４の基板固定組８４となり、この基板固定組８４が下方から支持枠８１に取付けられる。 In the third electrical component unit 8, as shown in FIG. 13, the top substrate 82 is fixed to the substrate fixture 83 to form the substrate fixing assembly 84 of FIG. 14, and the substrate fixing assembly 84 is attached to the support frame 81 from below. ..

トップ基板８２は長方形の板体の基板の底面にコンデンサ８２１や他の電装部品を有する。基板固定具８３は樹脂材で形成され、トップ基板８２の周囲を囲む長方形の固定枠８３１を有する。固定枠８３１は固定枠８３１の内側下部に縁状に設けた基板支持部８３２でトップ基板８２を支える。さらに固定枠８３１の右側の長辺の内側上部から３か所突出した突出片８３３と、固定枠８３１の左側の長辺の内側から３か所と前方の短辺の内側から一か所に突出した係止爪８３４を備える。基板支持部８３２は突出片８３３と係止爪８３４のある部分では切欠かれている。基板支持部８３２の上面から突出片８３３と係止爪８３４の下端までの間隔はトップ基板８２の板体の厚みと略同一である。基板固定具８３の下にはコンデンサ８２１に接しないように固定枠８３１を補強する梁８３５が２本設けられている。なお突出片８３３を係止爪８３４としても良い。 The top substrate 82 has a capacitor 821 and other electrical components on the bottom surface of a rectangular plate substrate. The substrate fixture 83 is made of a resin material and has a rectangular fixing frame 831 that surrounds the top substrate 82. The fixed frame 831 supports the top substrate 82 by a substrate supporting portion 832 provided in an edge shape on the inner lower portion of the fixed frame 831. Further, a protruding piece 833 protruding from the inner upper part of the long side on the right side of the fixed frame 831 at three places, and protruding from the inside of the long side on the left side of the fixed frame 831 at three places and one place from the inside of the short side at the front. The locking claw 834 is provided. The substrate support portion 832 is notched at a portion where the projecting piece 833 and the locking claw 834 are located. The distance from the upper surface of the substrate support portion 832 to the lower end of the protruding piece 833 and the locking claw 834 is substantially the same as the thickness of the plate body of the top substrate 82. Two beams 835 for reinforcing the fixing frame 831 so as not to come into contact with the capacitor 821 are provided under the board fixing tool 83. The protruding piece 833 may be used as the locking claw 834.

トップ基板８２は上方から基板固定具８３に挿入し、右側の長辺を基板支持部８３２と突出片８３３の間に嵌めた後、トップ基板８２を係止爪８３４の下に位置するように嵌め込むことで固定される。 The top board 82 is inserted into the board fixture 83 from above, the long side on the right side is fitted between the board support portion 832 and the protruding piece 833, and then the top board 82 is fitted so as to be located under the locking claw 834. It is fixed by inserting it.

図８を合わせて参照して基板固定具８３は、トップ基板８２の一方の短辺（背面側）に位置する固定枠８３１の外側に背面側に突出した係合爪８３６、８３６が二つ設けられている。また、図１３に示すように基板固定具８３は、トップ基板８２の他方の短辺（前面側）に位置する固定枠８３１の外側に突出した取付片８３８、８３８が二つ設けられている。取付片８３８には、支持枠８１と組み立てた時に支持枠８１の補強部８１８の上に載る爪部８３８ａを有する。さらに取付片８３８、８３８の間に、支持枠８１と組み立てた時に支持枠８１の下に位置するネジ用片８３７を備える。 The board fixture 83 is provided with two engaging claws 836 and 836 protruding to the back side on the outside of the fixing frame 831 located on one short side (back side) of the top board 82 with reference to FIG. Has been done. Further, as shown in FIG. 13, the substrate fixture 83 is provided with two mounting pieces 838 and 838 protruding outward from the fixing frame 831 located on the other short side (front side) of the top substrate 82. The mounting piece 838 has a claw portion 838a that rests on the reinforcing portion 818 of the support frame 81 when assembled with the support frame 81. Further, a screw piece 837 located under the support frame 81 when assembled with the support frame 81 is provided between the mounting pieces 838 and 838.

基板固定組８４となった基板固定具８３は、下方から支持枠８１に位置を合わせ背面側に二つある係合爪８３６を支持枠８１の係合孔８１１ｂに嵌め込む。係合爪８３６と係合孔８１１ｂは若干の遊びがあり、基板固定具８３を後方に少し押して前方の取付片８３８側を上方に押すと、取付片８３８の爪部８３８ａが支持枠８１の補強部８１８の上に載る。これで仮固定される。この時係合爪８３６と取付片８３８の爪部８３８ａで支持枠８１に支持されているため、落下するおそれは無い。最後にネジ用片８３７と支持枠８１のネジ孔を位置合わせして下方からネジ止めすることで基板固定組８４が支持枠８１に固定される。 The board fixture 83 that has become the board fixing assembly 84 aligns with the support frame 81 from below, and fits two engaging claws 836 on the back side into the engaging holes 811b of the support frame 81. There is some play between the engaging claw 836 and the engaging hole 811b, and when the board fixture 83 is pushed slightly backward and the front mounting piece 838 side is pushed upward, the claw portion 838a of the mounting piece 838 reinforces the support frame 81. Placed on part 818. This will temporarily fix it. At this time, since the engaging claw 836 and the claw portion 838a of the mounting piece 838 are supported by the support frame 81, there is no risk of falling. Finally, the substrate fixing assembly 84 is fixed to the support frame 81 by aligning the screw holes of the screw piece 837 and the support frame 81 and screwing them from below.

メンテナンスのために基板固定組８４を外す時は、逆にネジをはずして基板固定具８３を後方に少し押して前方の取付片８３８側を下方に引き、取付片８３８の爪部８３８ａを支持枠８１の補強部８１８から取り外し、最後に係合爪８３６を係合孔８１１ｂから引き抜くことで容易に外すことができる。 When removing the board fixing assembly 84 for maintenance, on the contrary, remove the screws, push the board fixing tool 83 slightly backward, pull the front mounting piece 838 side downward, and pull the claw portion 838a of the mounting piece 838 downward to the support frame 81. It can be easily removed by removing it from the reinforcing portion 818 of the above and finally pulling out the engaging claw 836 from the engaging hole 811b.

組み立てられた第３電装品ユニット８は図４に示すように絶縁シート８５で覆われる。また基板固定組８４は支持枠８１の右側に取り付けられることで、電装部仕切板５２との間に隙間８６が設けられている。この隙間８６には、前述した第１電装品ユニット６のダクト６５１が配置されている。これにより、基板固定組８４とダクト６５１が並んで配置されたことで電装品ユニット５の高さをさらに低くすることができ、引いては筐体１１の高さを低くすることができる。 The assembled third electrical component unit 8 is covered with the insulating sheet 85 as shown in FIG. Further, the substrate fixing assembly 84 is attached to the right side of the support frame 81, so that a gap 86 is provided between the substrate fixing assembly 84 and the partition plate 52 of the electrical component portion. The duct 651 of the first electrical component unit 6 described above is arranged in the gap 86. As a result, the height of the electrical component unit 5 can be further lowered by arranging the substrate fixing assembly 84 and the duct 651 side by side, and by extension, the height of the housing 11 can be lowered.

以上のように電装部仕切板５３の橋架されるコ字状の支持枠８１を備え、支持枠８１にトップ基板８２と同トップ基板８２を支える基板固定具８３が一体となった基板固定組８４を取り付けることにより、電装部品（コンデンサ８２１）を筐体１１の上部にも設けることが可能となる。また筐体１１の上部に基板固定組８４を設けることで、筐体１１の高さを低くすることも可能となる。また基板固定組８４は支持枠８１の右側に取り付けられることで電装部仕切板５２との間に隙間８６が設けられる。この隙間８６には第１電装品ユニット６のダクト６５１が配置される。これにより基板固定組８４とダクト６５１が並んで配置されたことで電装品ユニット５の高さをさらに低くすることができ、引いては筐体１１の高さを低くすることができる。さらに、基板固定組８４は着脱可能であることから、トップ基板８２を下方から取り外すことが可能となり、メンテナンスの作業性が向上するものである。 As described above, the substrate fixing assembly 84 is provided with the U-shaped support frame 81 bridged by the electrical component partition plate 53, and the top substrate 82 and the substrate fixture 83 that supports the top substrate 82 are integrated with the support frame 81. By attaching the above, it becomes possible to provide the electrical component (capacitor 821) also on the upper part of the housing 11. Further, by providing the substrate fixing assembly 84 on the upper part of the housing 11, the height of the housing 11 can be lowered. Further, the substrate fixing assembly 84 is attached to the right side of the support frame 81, so that a gap 86 is provided between the substrate fixing assembly 84 and the partition plate 52 of the electrical component portion. The duct 651 of the first electrical component unit 6 is arranged in this gap 86. As a result, the board fixing assembly 84 and the duct 651 are arranged side by side, so that the height of the electrical component unit 5 can be further lowered, and by extension, the height of the housing 11 can be lowered. Further, since the board fixing assembly 84 is removable, the top board 82 can be removed from below, and maintenance workability is improved.

１：室外機、１１：筺体、１２：配管カバー、１３：サービスパネル、１４：背面パネル、１４１：外気取込口、１５：底板、１６：天板、１８：熱交換器
２０：モータ、２１：送風ファン、２４：下部仕切板、２５：受け部、３５１：レール受け部、２５１ａ：ストッパー用延出部、２６：上部仕切板、２６４：差込爪
３０：前面パネル
４：冷媒回路部品、４０：アキュムレータ、４３：冷媒配管、４５：配管収容部、４６：第１ケーブル、４７：第２ケーブル
５：電装品ユニット、５２：電装部仕切板、５３：取付面、５４：固定面、５４１：角部、５５：支柱、５５１：ヒンジ用スリット、５６：角部固定板、５７：ストッパー、５８：レール面、５８１：レールガイド部、５９：空気取込口、５９１：通気孔
６：第１電装品ユニット、６１：取付台、６１１：インバータ基板、６２：ファンモタドライブ基板、６２１：第１コネクタ、６２２：第２コネクタ、６３１：ヒートシンク、６４：遮水蓋、６５１：ダクト、６５２：導風カバー
７：第２電装品ユニット、７１：基板固定板、７３：開口部、７４：コネクタ中継部、７４１：中継コネクタ
８：第３電装品ユニット、８１：支持枠、８２：トップ基板、８３：基板固定具、８４：基板固定組、８５：絶縁シート、８６：隙間
ＭＲ：機械室、ＦＲ：送風機室 1: Outdoor unit, 11: Housing, 12: Piping cover, 13: Service panel, 14: Back panel, 141: Outside air intake, 15: Bottom plate, 16: Top plate, 18: Heat exchanger 20: Motor, 21 : Blower fan, 24: Lower partition plate, 25: Receiving part, 351: Rail receiving part, 251a: Extension part for stopper, 26: Upper partition plate, 264: Insert claw 30: Front panel 4: Refrigerant circuit parts, 40: Accumulator, 43: Refrigerant pipe, 45: Pipe accommodating part, 46: First cable, 47: Second cable 5: Electrical component unit, 52: Electrical component partition plate, 53: Mounting surface, 54: Fixed surface, 541 : Corner, 55: Support, 551: Hinge slit, 56: Corner fixing plate, 57: Stopper, 58: Rail surface, 581: Rail guide, 59: Air intake, 591: Vent hole 6: No. 1 Electrical component unit, 61: Mounting base, 611: Inverter board, 62: Fan motor drive board, 621: 1st connector, 622: 2nd connector, 631: Heat sink, 64: Impermeable lid, 651: Duct, 652: Wind guide cover 7: 2nd electrical component unit, 71: Board fixing plate, 73: Opening, 74: Connector relay section, 741: Relay connector 8: 3rd electrical component unit, 81: Support frame, 82: Top board, 83: Substrate fixture, 84: Substrate fixing assembly, 85: Insulation sheet, 86: Gap MR: Machine room, FR: Blower room

Claims (5)

筐体と、前記筐体の内部を、下部仕切板と前記下部仕切板に載置される電装部仕切板で送風機室と機械室に区切り、前記送風機室には送風ファンと熱交換器を配置し、前記機械室には上部に電装品ユニットと下部にアキュムレータや冷媒配管を含む冷媒回路部品が配置された空気調和機の室外機において、
前記電装部仕切板には、前記電装部仕切板の前後の上部両端に橋架されるコ字状の支持枠を備え、
前記支持枠には、電装部品を備えた基板と同基板を支える基板固定具が、下方より着脱可能に取り付けられることを特徴とする空気調和機の室外機。 The housing and the inside of the housing are separated into a blower room and a machine room by a lower partition plate and an electrical component partition plate mounted on the lower partition plate, and a blower fan and a heat exchanger are arranged in the blower room. However, in the outdoor unit of the air conditioner in which the electrical component unit is arranged in the upper part and the refrigerant circuit parts including the accumulator and the refrigerant pipe are arranged in the lower part in the machine room.
The electrical component partition plate is provided with a U-shaped support frame bridged at both front and rear upper ends of the electrical component partition plate.
An outdoor unit of an air conditioner, characterized in that a substrate provided with electrical components and a substrate fixture that supports the substrate are detachably attached to the support frame from below. 前記基板は板体であり、前記基板固定具は前記基板を囲む固定枠を有し、前記固定枠内側に縁状に設けた基板支持部で前記基板を支え、前記固定枠内に突出した係止爪で前記基板を固定することを特徴とする請求項１に記載の空気調和機の室外機。 The substrate is a plate body, the substrate fixture has a fixing frame surrounding the substrate, the substrate is supported by a substrate support portion provided in an edge shape inside the fixing frame, and a hook protruding into the fixing frame. The outdoor unit of the air conditioner according to claim 1, wherein the substrate is fixed by a claw. 前記支持枠に取り付けられた基板固定具は、前記電装部仕切板との間に隙間が設けられ、同隙間に前記電装部仕切板に取り付けられる他の電装部品が配置されることを特徴とする請求項１または２に記載の空気調和機の室外機。 The substrate fixture attached to the support frame is characterized in that a gap is provided between the substrate fixture and the electrical component partition plate, and other electrical components to be attached to the electrical component partition plate are arranged in the gap. The outdoor unit of the air conditioner according to claim 1 or 2. 前記基板は長方形であり、前記基板固定具は、前記基板の一方の短辺側に位置する固定枠の外側に突出した係合爪を設け、前記支持枠は前記係合爪に対向した位置に係合孔を備えることを特徴とする請求項１ないし３に記載の空気調和機の室外機。 The substrate is rectangular, and the substrate fixture is provided with an engaging claw that protrudes to the outside of a fixing frame located on one short side side of the substrate, and the support frame is located at a position facing the engaging claw. The outdoor unit of the air conditioner according to claim 1 to 3, further comprising an engaging hole. 前記支持枠は前記支持枠の下に内側に曲がった補強部を備え、前記基板固定具は前記基板の他方の短辺側に位置する固定枠の外側に突出した取付片を設け、前記取付片は前記支持枠の前記補強部に載置されることを特徴とする請求項４に記載の空気調和機の室外機。 The support frame is provided with a reinforcing portion bent inward under the support frame, and the substrate fixture is provided with a mounting piece projecting to the outside of the fixing frame located on the other short side side of the board, and the mounting piece. The outdoor unit of the air conditioner according to claim 4, wherein is mounted on the reinforcing portion of the support frame.
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