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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JP2004301477A (en) * 2003-04-01 2004-10-28 Mitsubishi Heavy Ind Ltd Electronic components casing for outdoor machine, outdoor machine unit, and air conditioner
JP4749302B2 (en) * 2006-09-29 2011-08-17 三菱電機株式会社 Air conditioner outdoor unit
JP2008190806A (en) * 2007-02-06 2008-08-21 Mitsubishi Heavy Ind Ltd Outdoor unit of air conditioner
WO2008126390A1 (en) * 2007-04-09 2008-10-23 Panasonic Corporation Electrical component box for air conditioning apparatus and air conditioning apparatus provided with the electrical component box
JP5611514B2 (en) * 2008-08-18 2014-10-22 三洋電機株式会社 Outdoor unit
JP2014044007A (en) * 2012-08-27 2014-03-13 Toshiba Corp Outdoor unit of air conditioner
US20170176028A1 (en) * 2015-12-18 2017-06-22 Lg Electronics Inc. Air conditioner

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