JP2009030884A - Outdoor unit - Google Patents

Outdoor unit Download PDF

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Publication number
JP2009030884A
JP2009030884A JP2007195596A JP2007195596A JP2009030884A JP 2009030884 A JP2009030884 A JP 2009030884A JP 2007195596 A JP2007195596 A JP 2007195596A JP 2007195596 A JP2007195596 A JP 2007195596A JP 2009030884 A JP2009030884 A JP 2009030884A
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plate
partition plate
electrical
outdoor unit
machine room
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JP2007195596A
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JP4859776B2 (en
Inventor
Takaaki Tamura
隆明 田村
Yoshihito Tajima
祥人 田島
Kenji Yoshida
健二 吉田
Shiro Bando
史朗 坂東
Hiroyoshi Sugawara
大誉 菅原
Mitsuo Kunisada
光男 國定
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Priority to JP2007195596A priority Critical patent/JP4859776B2/en
Priority to CN2008101337290A priority patent/CN101354162B/en
Publication of JP2009030884A publication Critical patent/JP2009030884A/en
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  • Other Air-Conditioning Systems (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit capable of achieving both of reduction of a front face projecting area of an electric component box and facilitation of the flow of cooling air for cooling the inside of a machine chamber. <P>SOLUTION: An electric component box 40 is disposed at a front face side of a machine chamber R2, and comprises an electric component unit supporting plate 41 extending in the width direction of the machine chamber R2, the electric component unit supporting plate 41 has an inclined plate portion 43 reaching a partitioning plate 15, a first electric component board 51 constituting a first electric component unit is disposed on a front face of a plate portion 42, a second electric component board 52 constituting a second electric component unit is disposed on a front face of the inclined plate portion 43, a heat sink 60 to which the heat of the second electric component unit is disposed in a bag-shaped space SP surrounded by a partitioning plate inclined portion 15A2 and the inclined plate portion 43, and a vent hole is formed on the partitioning plate inclined portion 15A2 for introducing the cooling air flowing at back faces of the plate portion 42 and the inclined plate portion 43 and cooling the heat sink 60, to a negative pressure side of an air blower 22 of a heat exchanging chamber R1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ユニットケース内を仕切り板で縦に仕切って熱交換室と機械室とに分割し、熱交換室には熱交換器および送風機を収容し、機械室には圧縮機および電装ボックスを収容した室外ユニットに関する。   The present invention divides the inside of the unit case vertically with a partition plate and divides it into a heat exchange chamber and a machine room. The heat exchange chamber contains a heat exchanger and a blower, and the machine room contains a compressor and an electrical box. It relates to the housed outdoor unit.

空気調和装置の室外ユニットには、ユニットケース内を仕切り板で縦に仕切って熱交換室と機械室とに分割し、熱交換室に熱交換器と送風機とを収容し、機械室に圧縮機や電装ボックスを収容したものがある。
一般に、この種の電装ボックスは、室外ユニットの前面パネルを外してメンテナンス作業が行われる。このため、例えば、電装ボックスを機械室の幅方向に略まっすぐに延びる板部材とした場合、この板部材の前面に電装品を配置すれば前面側から電装品への各種作業が容易になるが、電装ボックスの最大幅、つまり、前面の投影面積が大きくなってしまい、室外ユニット全体が大型化してしまう。
従来、電装ボックスの前面投影面積を低減したものには、電装ボックスの一端側を前面側に折り曲げて上面視L字形状とし、各平板部の前面側に各々電装基板を配置したものや、幅狭の電装ボックスに電装品の一部を配置し、残りの電装品を仕切り板に配置して電装ボックスの後方に配置したものがある(例えば、特許文献1参照)。
特開2005−76925号公報
In the outdoor unit of the air conditioner, the inside of the unit case is partitioned vertically by a partition plate to divide it into a heat exchange chamber and a machine room, a heat exchanger and a blower are accommodated in the heat exchange room, and a compressor is placed in the machine room. There is also a box that houses an electrical box.
Generally, this type of electrical equipment box is subjected to maintenance work by removing the front panel of the outdoor unit. For this reason, for example, when the electrical box is a plate member extending substantially straight in the width direction of the machine room, if the electrical component is arranged on the front surface of the plate member, various operations from the front side to the electrical component are facilitated. The maximum width of the electrical box, that is, the projected area of the front surface is increased, and the entire outdoor unit is increased in size.
Conventionally, in the case where the front projection area of the electrical box is reduced, one end side of the electrical box is bent to the front side to form an L shape when viewed from above, and the electrical board is disposed on the front side of each flat plate part, Some of the electrical components are arranged in a narrow electrical box, and the remaining electrical components are arranged on a partition plate and arranged behind the electrical box (for example, see Patent Document 1).
JP 2005-76925 A

しかし、従来の構成では、電装ボックスの後方空間に配置された電装品には、室外ユニットの前面側からは作業者が直接作業できないため、前面側の部品を取り外す作業などが必要になる。また、電装ボックスの一端側を前面側に折り曲げて上面視L字形状としたものでも、この折り曲げ部分に配置した電装品を着脱するには、作業者がこの折り曲げ部分にねじを締結したり、ねじを緩める作業などが必要になるため、作業しづらい場合があった。
また、従来より、機械室内に外気を通して電装ボックスの電装品などを冷却しているが、上記のような電装ボックスを機械室の前面側に配置すると、機械室内の冷却風を円滑に熱交換室内に排出することが難しい場合があり、冷却風の流れが悪くなってしまう場合があった。
However, in the conventional configuration, the electrical components arranged in the space behind the electrical box cannot be directly operated by the operator from the front side of the outdoor unit, and thus the operation of removing the front side components is required. In addition, even if one end side of the electrical box is bent to the front side to have an L shape when viewed from the top side, an operator can fasten a screw to the bent portion in order to attach or detach the electrical component disposed in the bent portion, Since it was necessary to loosen the screws, it was difficult to work.
Conventionally, the electrical components of the electrical box are cooled by passing outside air into the machine room. However, if the electrical box as described above is arranged on the front side of the machine room, the cooling air in the machine room is smoothly supplied to the heat exchange room. In some cases, it may be difficult to discharge the air, and the flow of cooling air may deteriorate.

本発明は、上述した事情に鑑みてなされたものであり、電装ボックスの前面投影面積の低減と機械室内に十分な冷却風を流すこととの両立を図ることができる室外ユニットを提供することにある。   This invention is made in view of the situation mentioned above, and provides the outdoor unit which can aim at coexistence with reduction of the front projection area of an electrical equipment box, and flowing sufficient cooling air in a machine room. is there.

上述した課題を解決するため、本発明は、ユニットケース内を仕切り板で縦に仕切り、熱交換室には熱交換器および送風機を収容し、機械室には圧縮機および電装ボックスを収容した室外ユニットにおいて、前記電装ボックスは、前記機械室の前面側に配置され、該機械室の幅方向に延在する電装ユニット支持板を備え、この電装ユニット支持板は、前記機械室の外側面近傍から該機械室の前面に沿って熱交換室側に延びる板部と、この板部から前記熱交換室の前面側に向かって傾斜して延び、前記仕切り板に至る傾斜板部とを有し、前記板部の前面に、第1電装ユニットを配置すると共に、前記傾斜板部の前面に、第2電装ユニットを配置し、前記仕切り板に、前記傾斜板部の背面側で該傾斜板部に略沿う仕切り板傾斜部を設け、この仕切り板傾斜部と前記傾斜板部とで囲まれた袋穴状の空間に前記第2電装ユニットの熱を放出するヒートシンクを配置し、前記仕切り板傾斜部には、前記板部および前記傾斜板部の背面を流れ、前記ヒートシンクを冷却する冷却風を、前記熱交換室の前記送風機の負圧側に導入可能な通風孔を設けたことを特徴とする。   In order to solve the above-described problems, the present invention has a unit case that is partitioned vertically by a partition plate, a heat exchanger and a blower are accommodated in the heat exchange chamber, and a compressor and an electrical box are accommodated in the machine room. In the unit, the electrical box is provided on the front side of the machine room, and includes an electrical unit support plate extending in the width direction of the machine room. The electrical unit support plate is disposed from the vicinity of the outer surface of the machine room. A plate portion extending toward the heat exchange chamber along the front surface of the machine room, and an inclined plate portion extending from the plate portion toward the front surface side of the heat exchange chamber and reaching the partition plate; A first electrical unit is disposed on the front surface of the plate portion, a second electrical unit is disposed on the front surface of the inclined plate portion, and the inclined plate portion is disposed on the partition plate on the back side of the inclined plate portion. A partition plate slanting part is provided, and this partition A heat sink that releases heat of the second electrical unit is disposed in a bag-hole-shaped space surrounded by the plate inclined portion and the inclined plate portion, and the partition plate inclined portion includes the plate portion and the inclined plate portion. A ventilation hole is provided that can introduce cooling air for cooling the heat sink to the negative pressure side of the blower in the heat exchange chamber.

この発明によれば、電装ユニット支持板は、機械室の外側面近傍から該機械室の前面に沿って熱交換室側に延びる板部と、この板部から熱交換室の前面側に向かって傾斜して延び、仕切り板に至る傾斜板部とを有し、前記板部の前面に、第1電装ユニットを配置すると共に、前記傾斜板部の前面に、第2電装ユニットを配置したので、電装ユニット支持板にまっすぐな平板を適用したものに比して、電装ボックスの前面投影面積の低減を図ることができると共に、電装ユニット支持板に一端側を前面側に折り曲げた上面視L字形状を適用したものに比して、第1電装ユニットおよび第2電装ユニットの両方を前面に向けて配置でき、これらのメンテナンス作業を容易に行うことが可能になる。
しかも、仕切り板に、前記傾斜板部の背面側で該傾斜板部に略沿う仕切り板傾斜部を設け、この仕切り板傾斜部と前記傾斜板部とで囲まれた袋穴状の空間に前記第2電装ユニットの熱を放出するヒートシンクを配置し、前記仕切り板傾斜部には、前記板部および前記傾斜板部の背面を流れ、前記ヒートシンクを冷却する冷却風を、前記熱交換室の前記送風機の負圧側に導入可能な通風孔を設けたので、冷却風を熱交換室内に円滑に流すことができ、機械室内に十分に冷却風を流すことができる。従って、電装ボックスの前面投影面積の低減と機械室に十分な冷却風を流すこととの両立が可能になる。
According to this invention, the electrical unit support plate has a plate portion extending from the vicinity of the outer surface of the machine room to the heat exchange chamber side along the front surface of the machine room, and from the plate portion toward the front side of the heat exchange chamber. Since it has an inclined plate portion that extends at an angle and reaches the partition plate, and the first electrical unit is disposed on the front surface of the plate portion, and the second electrical unit is disposed on the front surface of the inclined plate portion, Compared to the case where a straight flat plate is applied to the electrical unit support plate, the front projection area of the electrical box can be reduced, and the electrical unit support plate is L-shaped in top view with one end folded to the front side. Compared to the case where the above is applied, both the first electrical unit and the second electrical unit can be arranged facing the front, and it becomes possible to easily perform these maintenance operations.
In addition, the partition plate is provided with a partition plate inclined portion substantially along the inclined plate portion on the back side of the inclined plate portion, and the bag hole-shaped space surrounded by the partition plate inclined portion and the inclined plate portion A heat sink that dissipates heat of the second electrical unit is disposed, and the partition plate inclined portion flows through the plate portion and the back surface of the inclined plate portion, and the cooling air that cools the heat sink is supplied to the heat exchange chamber. Since the vent hole that can be introduced on the negative pressure side of the blower is provided, the cooling air can flow smoothly into the heat exchange chamber, and the cooling air can flow sufficiently into the machine chamber. Therefore, it is possible to achieve both reduction of the front projection area of the electrical equipment box and sufficient cooling air to flow through the machine room.

上記構成において、前記仕切り板は、前記仕切り板傾斜部から屈曲して前記機械室の前面側に延びる仕切り板屈曲部を有し、この仕切り板屈曲部、前記仕切り板傾斜部および前記傾斜板部とによって前記袋穴状の空間を形成し、前記仕切り板屈曲部には、前記ヒートシンクを冷却する冷却風を、前記熱交換室の前記送風機の負圧側に導入可能な他の通風孔を設けることが好ましい。この構成によれば、仕切り板傾斜部から屈曲して前記機械室の前面側に延びる仕切り板屈曲部にも、熱交換室の送風機の負圧側に導入可能な通風孔を設けるので、冷却風をより円滑に熱交換室内に導入させることができる。   The said structure WHEREIN: The said partition plate has a partition plate bending part bent from the said partition plate inclination part, and extends to the front side of the said machine room, This partition plate bending part, the said partition plate inclination part, and the said inclination plate part The bag hole-shaped space is formed, and another air vent hole is provided in the bent part of the partition plate so that cooling air for cooling the heat sink can be introduced to the negative pressure side of the blower in the heat exchange chamber. Is preferred. According to this configuration, since the partition plate bending portion that is bent from the partition plate inclined portion and extends to the front side of the machine room is provided with the ventilation hole that can be introduced to the negative pressure side of the blower in the heat exchange chamber, It can be introduced more smoothly into the heat exchange chamber.

上記構成において、前記通風孔を前記送風機の背面側に向けて開口させたことが好ましい。この構成によれば、送風機の負圧が強い領域である送風機の背面側に通風孔が開口するので、ヒートシンクを冷却する冷却風を熱交換室内により円滑に流すことができる。この場合、前記通風孔を、前記仕切り板を前記熱交換室側に切り起こして形成することにより、通風孔を簡易に設けることができる。   The said structure WHEREIN: It is preferable to open the said ventilation hole toward the back side of the said air blower. According to this configuration, the ventilation hole opens on the back side of the blower, which is a region where the negative pressure of the blower is strong, so that the cooling air for cooling the heat sink can be smoothly flowed in the heat exchange chamber. In this case, the ventilation hole can be simply provided by forming the ventilation hole by cutting and raising the partition plate toward the heat exchange chamber.

また、上記構成において、前記電装ユニット支持板の上縁を前記仕切り板の上縁よりも低くして前記ユニットケースの天板と前記電装ユニット支持板との間に通風路を設けることが好ましい。この構成によれば、電装ユニット支持板の前面側の冷却風を、電装ユニット支持板を乗り越えてその背面側に流して電装ユニット支持板の背面を流れる冷却風に合流させることができ、ヒートシンクへ円滑に導入させることができる。また、上記構成において、前記第2電装ユニットが前記第1電装ユニットよりも発熱量が多いことが好ましい。この第2電装ユニットにはヒートシンクが設けられるので、このヒートシンクにより第2電装ユニットを効率よく冷却することができる。   Moreover, in the said structure, it is preferable to provide the ventilation path between the top plate of the said unit case, and the said electrical equipment unit support plate by making the upper edge of the said electrical equipment unit support plate lower than the upper edge of the said partition plate. According to this configuration, the cooling air on the front side of the electrical unit support plate can be passed over the electrical unit support plate to the back side and merged with the cooling air flowing on the back side of the electrical unit support plate, to the heat sink It can be introduced smoothly. In the above configuration, it is preferable that the second electrical unit has a larger amount of heat generation than the first electrical unit. Since the second electrical unit is provided with a heat sink, the second electrical unit can be efficiently cooled by the heat sink.

本発明は、電装ボックスは、機械室の前面側に配置され、該機械室の幅方向に延在する電装ユニット支持板を備え、この電装ユニット支持板は、機械室の外側面近傍から該機械室の前面に沿って熱交換室側に延びる板部と、この板部から前記熱交換室の前面側に向かって傾斜して延び、仕切り板に至る傾斜板部とを有し、前記板部の前面に、第1電装ユニットを配置すると共に、前記傾斜板部の前面に、第2電装ユニットを配置し、前記仕切り板に、前記傾斜板部の背面側で該傾斜板部に略沿う仕切り板傾斜部を設け、この仕切り板傾斜部と前記傾斜板部とで囲まれた袋穴状の空間に前記第2電装ユニットの熱を放出するヒートシンクを配置し、前記仕切り板傾斜部には、前記板部および前記傾斜板部の背面を流れ、前記ヒートシンクを冷却する冷却風を、前記熱交換室の前記送風機の負圧側に導入可能な通風孔を設けたので、第1電装ユニットおよび第2電装ユニットを前面に向けて配置しながら電装ボックスの前面投影面積の低減を図ることができ、かつ、冷却風を熱交換室内に確実に流して機械室内に十分に冷却風を流すことが可能になる。   In the present invention, the electrical box is provided on the front side of the machine room, and includes an electrical unit support plate extending in the width direction of the machine room. The electrical unit support plate is provided near the outer surface of the machine room. A plate portion extending toward the heat exchange chamber along the front surface of the chamber, and an inclined plate portion extending from the plate portion toward the front surface side of the heat exchange chamber and extending to the partition plate, and the plate portion A first electrical unit is disposed on the front surface of the second plate, a second electrical unit is disposed on the front surface of the inclined plate portion, and the partition plate has a partition substantially along the inclined plate portion on the back side of the inclined plate portion. A plate inclined portion is provided, and a heat sink that releases heat of the second electrical unit is disposed in a bag-hole-shaped space surrounded by the partition plate inclined portion and the inclined plate portion, and the partition plate inclined portion includes: Flows behind the plate and the inclined plate, and cools the heat sink Since the ventilation holes that can introduce the cooling air to the negative pressure side of the blower in the heat exchange chamber are provided, the first electrical unit and the second electrical unit are arranged facing the front while the front projection area of the electrical box is increased. Reduction can be achieved, and the cooling air can be surely flowed into the heat exchange chamber to sufficiently flow the cooling air into the machine chamber.

以下、図面を参照して本発明の実施形態を詳述する。
本実施形態に係る空気調和装置は、室外ユニット10と室内ユニット(図示せず)とから構成されており、冷媒配管により接続された冷媒回路に冷媒を流して、冷房運転および暖房運転を行う。室外ユニット10は、室外に設置され、室外空気と熱交換して冷房運転時には冷媒を凝縮させて外気に熱を放出し、暖房運転時には冷媒を蒸発させて外気から熱を取り込むものである。なお、以下に述べる上下および左右といった方向は、室外ユニット10を設置した状態でその前面側から見た場合の方向を示している。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The air conditioner according to this embodiment includes an outdoor unit 10 and an indoor unit (not shown), and performs a cooling operation and a heating operation by flowing a refrigerant through a refrigerant circuit connected by a refrigerant pipe. The outdoor unit 10 is installed outside and exchanges heat with outdoor air to condense the refrigerant during cooling operation and release heat to the outside air, and evaporate the refrigerant during heating operation and take in heat from the outside air. In addition, the directions such as up and down and left and right described below indicate directions when viewed from the front side of the outdoor unit 10 in a state where the outdoor unit 10 is installed.

図1は、室外ユニット10を前面から見た図であり、図2は室外ユニット10を上方から見た図である。この室外ユニット10は、略直方体箱形状のユニットケース(筐体)11を備え、ユニットケース11は、底板12、天板(図示せず)、前面パネル13および外板14を有し、ユニットケース11内部が鉛直に延びる仕切り板15によって縦に仕切られ、熱交換室R1と機械室R2とに分割されている。なお、図1の例では、天板、前面パネル13および外板14を取り外した状態を示しているが、前面パネル13は、仕切り板15を境に左右に二分割された第1前面パネル13Aと第2前面パネル13Bとから構成され、各前面パネル13A、13Bを取り外すことによって、作業者が前面側から熱交換室R1および機械室R2内の部品のメンテナンス作業が可能に構成されている。   FIG. 1 is a view of the outdoor unit 10 as viewed from the front, and FIG. 2 is a view of the outdoor unit 10 as viewed from above. The outdoor unit 10 includes a unit case (housing) 11 having a substantially rectangular parallelepiped box shape. The unit case 11 includes a bottom plate 12, a top plate (not shown), a front panel 13, and an outer plate 14, and includes a unit case. 11 is partitioned vertically by a partition plate 15 extending vertically, and is divided into a heat exchange chamber R1 and a machine chamber R2. In the example of FIG. 1, the top plate, the front panel 13 and the outer plate 14 are removed, but the front panel 13 is divided into a first front panel 13 </ b> A that is divided into left and right with a partition plate 15 as a boundary. And the second front panel 13B. By removing each of the front panels 13A and 13B, an operator can perform maintenance work on the components in the heat exchange chamber R1 and the machine room R2 from the front side.

熱交換室R1には、図2に示すように、その背面側に熱交換器21が収容され、その前面側に送風機22が収容される。より具体的には、熱交換器21は、上面視略L字形状に屈曲されて形成され、熱交換室R1の左側面(外側面)から背面に沿わせて配置され、この左側面から背面にかけての露出面全体が、通風路(吸込口)を確保しつつ熱交換器21への人体などの接触を防止可能なネットなどからなるフィンガード(図示せず)で覆われる。   As shown in FIG. 2, the heat exchange chamber R <b> 1 contains a heat exchanger 21 on the back side and a blower 22 on the front side. More specifically, the heat exchanger 21 is formed by being bent into a substantially L shape when viewed from above, and is disposed along the back surface from the left side surface (outer side surface) of the heat exchange chamber R1. The entire exposed surface is covered with a finger (not shown) made of a net or the like that can prevent a human body or the like from contacting the heat exchanger 21 while securing a ventilation path (suction port).

送風機22は、熱交換室R1内の左右一対の支柱24L、24Rに台座25を介して固定されたファンモータ26と、このファンモータ26の軸に取り付けられたプロペラファン(軸流ファン)27とから構成され、このプロペラファン27が熱交換室R1の前面側に近接配置される。また、このプロペラファン27の前部が、熱交換室R1の前面パネルに設けられた丸形フランジ形状のファン覆い部28内に入り、このファン覆い部28の開口部が通風路(吹出口)として機能し、この開口部がプロペラファン27への人体などの接触を防止するファンガード29で覆われる。
ファンモータ26によりプロペラファン27が回転駆動されると、室外ユニット10の周囲、より具体的には、熱交換器21の背面側および左側面側から外気が熱交換室R1内に吸い込まれ、熱交換器21の略前面を通過した後に、熱交換室R1前面のファン覆い部28を通って外に排出される。つまり、この室外ユニット10は、前面から熱交換後の空気を吹き出す前面吹き出しタイプに構成されている。
The blower 22 includes a fan motor 26 fixed to a pair of left and right posts 24L and 24R in the heat exchange chamber R1 via a pedestal 25, and a propeller fan (axial fan) 27 attached to the shaft of the fan motor 26. The propeller fan 27 is arranged close to the front side of the heat exchange chamber R1. Further, the front portion of the propeller fan 27 enters a round flange-shaped fan cover portion 28 provided on the front panel of the heat exchange chamber R1, and the opening portion of the fan cover portion 28 is a ventilation path (blower). The opening is covered with a fan guard 29 that prevents the propeller fan 27 from contacting a human body or the like.
When the propeller fan 27 is rotationally driven by the fan motor 26, outside air is sucked into the heat exchange chamber R1 from the periphery of the outdoor unit 10, more specifically from the back side and the left side of the heat exchanger 21, and heat is generated. After passing through the substantially front surface of the exchanger 21, it is discharged outside through the fan cover portion 28 on the front surface of the heat exchange chamber R1. That is, the outdoor unit 10 is configured as a front blowing type that blows out air after heat exchange from the front.

図3は室外ユニット10の機械室R2の縦断面を示す図であり、図4は機械室R2を上面から見た図である。図1、図3および図4に示すように、機械室R2には、冷媒回路の一部を構成する圧縮機31、アキュムレータ32および切替弁や凝縮弁といった弁体などの冷媒回路構成部品が配管接続されて機械室R2の略下方空間内に収容される。この機械室R2内の配管の一端側は、熱交換器21を介して室内ユニットと配管接続され、配管の他端側は室内ユニットに配管接続され、これにより、冷媒を循環する冷媒回路が構成される。
また、機械室R2の上方空間には、空気調和装置を制御する制御基板などの各種電装ユニット(電装品)50を配設した電装ボックス40が配置される。この電装ボックス40は、機械室R2の前面側にて機械室R2の幅方向に延在する電装ユニット支持板41を有し、この電装ユニット支持板41に基板などの電装ユニット50が配置されている。
3 is a view showing a longitudinal section of the machine room R2 of the outdoor unit 10, and FIG. 4 is a view of the machine room R2 as viewed from above. As shown in FIGS. 1, 3, and 4, in the machine room R <b> 2, refrigerant circuit components such as a compressor 31, an accumulator 32, and a valve body such as a switching valve and a condensation valve that constitute a part of the refrigerant circuit are piped. It is connected and accommodated in a substantially lower space of the machine room R2. One end side of the pipe in the machine room R2 is connected to the indoor unit via the heat exchanger 21, and the other end side of the pipe is connected to the indoor unit, thereby forming a refrigerant circuit for circulating the refrigerant. Is done.
An electrical box 40 in which various electrical units (electrical components) 50 such as a control board for controlling the air conditioner are disposed is disposed in the upper space of the machine room R2. The electrical box 40 has an electrical unit support plate 41 extending in the width direction of the machine room R2 on the front side of the machine room R2, and an electrical unit 50 such as a substrate is disposed on the electrical unit support plate 41. Yes.

次に電装ボックス40について詳述する。図5は電装ボックス40をその周辺構成と共に室外ユニット10の略前面側から見た斜視図であり、図6(A)は室外ユニット10の略背面側から見た斜視図であり、図6(B)は機械室R2側から見た斜視図である。
電装ボックス40は、図4に示すように、機械室R2の前面側に配置されて機械室R2の幅方向に延在する電装ユニット支持板41を備え、この電装ユニット支持板41には、図5および図6(A)(B)に示すように、複数の電装ユニット50がねじで固定される。ここで、本実施形態では、図1に示すように、機械室R2と熱交換室R1とを仕切る仕切り板15が上下に分割されて上部仕切り板15Aと下部仕切り板15Bとから構成される。上記電装ユニット支持板41は、図5に示すように、上部仕切り板15Aに連結され、このため、この電装ユニット支持板41と上部仕切り板15Aとは一体のユニットとして着脱可能である。
また、この電装ユニット支持板41は、その上縁が上部仕切り板15Aの上縁よりも一段低くなるように取り付けられ、この電装ユニット支持板41と室外ユニット10の天板との間に空気(冷却風)を流通させる通風路が形成される。
Next, the electrical box 40 will be described in detail. FIG. 5 is a perspective view of the electrical equipment box 40 as well as its peripheral configuration as seen from the substantially front side of the outdoor unit 10, and FIG. 6A is a perspective view of the electrical unit box 40 as seen from the substantially back side. B) is a perspective view seen from the machine room R2 side.
As shown in FIG. 4, the electrical box 40 includes an electrical unit support plate 41 disposed on the front side of the machine room R2 and extending in the width direction of the machine room R2. The electrical unit support plate 41 includes As shown in FIG. 5 and FIGS. 6A and 6B, a plurality of electrical units 50 are fixed with screws. Here, in this embodiment, as shown in FIG. 1, the partition plate 15 that partitions the machine room R2 and the heat exchange chamber R1 is divided into an upper part and a lower part of the partition plate 15B. As shown in FIG. 5, the electrical unit support plate 41 is connected to the upper partition plate 15A. Therefore, the electrical unit support plate 41 and the upper partition plate 15A are detachable as an integral unit.
The electrical unit support plate 41 is attached so that its upper edge is one step lower than the upper edge of the upper partition plate 15A, and air ( A ventilation path for circulating cooling air is formed.

図7は電装ユニット支持板41の三面図であり、図7(A)は平面図を示し、図7(B)は上面図を示し、図7(C)は左側面図である。この電装ユニット支持板41は、一枚の金属板に曲げ加工などの板金加工を行って形成され、大略的には、図7(A)に示すように、最も広い面積を割り当てた略矩形形状の板部42と、この板部42の側縁(図7中左側縁)42Xから屈曲した縦長の傾斜板部(曲げ部)43と、この板部42の下縁42Yから下方へ延びる横長の下部板部44とを一体に備えて構成される。なお、本実施形態では、一枚の金属板を曲げて電装ユニット支持板41を形成しているが、これに限らず、一枚の樹脂板などの剛性を有する板材を上述の形状に成型して電装ユニット支持板41を形成してもよい。
この電装ユニット支持板41の最大幅W1、つまり、板部42と傾斜板部43とを合わせた幅W1は、機械室R2の幅内に収まる長さに形成され、より具体的には、図2に示すように、機械室R2の前面側において、機械室R2の外側面(右側面)近傍から上部仕切り板15Aまでの距離WOに略一致している。
7 is a three-side view of the electrical unit support plate 41, FIG. 7 (A) is a plan view, FIG. 7 (B) is a top view, and FIG. 7 (C) is a left side view. The electrical unit support plate 41 is formed by performing sheet metal processing such as bending on a single metal plate, and generally has a substantially rectangular shape with the widest area allocated as shown in FIG. Plate portion 42, a vertically long inclined plate portion (bent portion) 43 bent from a side edge (left side edge in FIG. 7) 42X of the plate portion 42, and a horizontally long shape extending downward from a lower edge 42Y of the plate portion 42. The lower plate portion 44 is integrally provided. In this embodiment, the electrical unit support plate 41 is formed by bending a single metal plate. However, the present invention is not limited thereto, and a rigid plate material such as a single resin plate is molded into the above-described shape. The electrical unit support plate 41 may be formed.
The maximum width W1 of the electrical unit support plate 41, that is, the combined width W1 of the plate portion 42 and the inclined plate portion 43 is formed to a length that falls within the width of the machine room R2, and more specifically, FIG. As shown in FIG. 2, on the front side of the machine room R2, the distance WO from the vicinity of the outer side surface (right side surface) of the machine room R2 to the upper partition plate 15A is substantially coincident.

電装ユニット支持板41を機械室R2に配置した場合には、図4に示すように、上記板部42が、上面視で、機械室R2の前面側の空間内において、機械室R2の外側面(右側面)近傍から機械室R2の前面に沿って熱交換室R1側に延びるように配置され、上記傾斜板部43が、熱交換室R1の前面側に向かって傾斜し、その前面を機械室R2の前面側に向けて配置される。これにより、電装ユニット支持板41の前面全体を室外ユニット10の前面側に向けることができる。
これら板部42および傾斜板部43の前面には、状態確認作業や部品の着脱作業などのメンテナンス頻度が比較的高いと考えられる電装ユニット50が配置され、具体的には、図5に示すように、板部42の前面には、第1電装ユニットを構成する第1電装基板51が配置され、傾斜板部43の前面には、第2電装ユニットを構成する第2電装基板52およびブリッジダイオードなどの発熱部品53が配置される。
When the electrical unit support plate 41 is disposed in the machine room R2, as shown in FIG. 4, the plate part 42 is located on the outer side surface of the machine room R2 in the front side space of the machine room R2 when viewed from above. (Right side) It is arrange | positioned so that it may extend in the heat exchange chamber R1 side along the front surface of machine room R2 from the near side, The said inclination board part 43 inclines toward the front side of heat exchange chamber R1, and the front surface is machine. It arrange | positions toward the front side of chamber R2. Thereby, the entire front surface of the electrical unit support plate 41 can be directed to the front surface side of the outdoor unit 10.
On the front surfaces of the plate portion 42 and the inclined plate portion 43, an electrical unit 50 that is considered to have a relatively high maintenance frequency, such as a state check operation and a component attachment / detachment operation, is arranged. Specifically, as shown in FIG. In addition, a first electrical board 51 constituting the first electrical unit is disposed on the front surface of the plate part 42, and a second electrical board 52 and a bridge diode constituting the second electrical unit are disposed on the front surface of the inclined plate part 43. A heat generating component 53 such as is arranged.

これら電装基板51、52は、空気調和装置の各部の運転や運転制御を行うための各種電装ユニットを実装した基板であり、このうち、第1電装基板51は、比較的発熱量が少ない電装品を実装した基板であり、第2電装基板52は、例えば、インバータ回路などの比較的発熱量が多い電装品を実装した基板である。すなわち、第2電装基板52は、第1電装基板51より発熱量が多い基板とされ、後述するヒートシンク60を用いた冷却を必要とする。   These electrical boards 51 and 52 are boards on which various electrical units for performing operation and operation control of each part of the air conditioner are mounted. Among these, the first electrical board 51 is an electrical component with a relatively small amount of heat generation. The second electrical board 52 is a board on which electrical components such as an inverter circuit that generate a relatively large amount of heat are mounted. That is, the second electrical board 52 is a board that generates more heat than the first electrical board 51, and requires cooling using the heat sink 60 described later.

ここで、板部42は、図5に示すように、第1電装基板51と略同じサイズとされ、この板部42に配置される部品の配置面積を確保しつつその小型化(幅狭化)を図っている。また、板部42には、図7(A)〜(C)に示すように、その一部を背面側に略水平に屈曲させた2カ所の屈曲部42A、42Bを設けており、これら屈曲部42A、42Bには、図5(A)に示すように、パワーリレー、キャパシタなどの電装ユニット55、56が固定される。このように、板部42の一部を背面側に折り曲げて電装ユニット55、56の取付台を形成したことにより、取付台を別部材で設ける場合に比して部品点数の削減を図ることができる。
なお、板部42の機械室R2の外側面側の端部42Zは、上面視略コの字状に屈曲されて板部42の剛性の向上を図ると共に、このコの字部分の背面側の一部を切り欠いて爪部42Tを一体に形成し、この爪部42Tは、電装ボックス40をユニットケース11に引っ掛ける引掛部として機能させている。
Here, as shown in FIG. 5, the plate portion 42 is substantially the same size as the first electrical component substrate 51, and its size (narrower width) is ensured while securing the arrangement area of the components arranged on the plate portion 42. ). Further, as shown in FIGS. 7A to 7C, the plate portion 42 is provided with two bent portions 42A and 42B which are partially bent at the back side substantially horizontally, and these bent portions are provided. As shown in FIG. 5A, electrical units 55 and 56 such as power relays and capacitors are fixed to the portions 42A and 42B. Thus, by forming a mounting base for the electrical units 55 and 56 by bending a part of the plate portion 42 to the back side, the number of parts can be reduced as compared with the case where the mounting base is provided as a separate member. it can.
The end portion 42Z of the plate portion 42 on the outer surface side of the machine room R2 is bent in a substantially U shape when viewed from above to improve the rigidity of the plate portion 42, and at the back side of the U portion. A claw portion 42T is integrally formed by cutting out a part, and this claw portion 42T functions as a hooking portion for hooking the electrical box 40 to the unit case 11.

傾斜板部(曲げ部)43は、上述したように、熱交換室R1の前面側に向かって傾斜するため、機械室R2の前面側から、傾斜板部43の前面に配置された第2電装ユニット(第2電装基板52および発熱部品53)を作業者が容易にメンテナンス可能である。
また、この第2電装ユニットは、ヒートシンク60で冷却を行う電装ユニットであり、図6(A)に示すように、ヒートシンク60は、傾斜板部43の背面に略密着させて配置されている。このヒートシンク60は、複数のフィンを構成する金属板材を上下に間隔を空けて配列した構成を有し、傾斜板部43の4つの角部近傍に形成されたねじ孔43Aを利用して、図5に示すように、傾斜板部43の前面側からねじ43Bにより固定され、傾斜板部43の背面の上下に渡って延在する。
Since the inclined plate portion (bending portion) 43 is inclined toward the front side of the heat exchange chamber R1, as described above, the second electrical component disposed on the front surface of the inclined plate portion 43 from the front side of the machine room R2. An operator can easily maintain the unit (the second electrical component substrate 52 and the heat generating component 53).
The second electrical unit is an electrical unit that cools by the heat sink 60. As shown in FIG. 6A, the heat sink 60 is disposed in close contact with the back surface of the inclined plate portion 43. This heat sink 60 has a configuration in which metal plates constituting a plurality of fins are arranged at intervals in the vertical direction, and uses screw holes 43A formed in the vicinity of the four corners of the inclined plate portion 43. As shown in FIG. 5, the inclined plate portion 43 is fixed from the front side of the inclined plate portion 43 with screws 43 </ b> B and extends up and down on the rear surface of the inclined plate portion 43.

また、下部板部44は、図5および図7(C)に示すように、板部42の下縁42Yから略水平に前方へ延びた後に下方に向けて斜めに屈曲し、下方に行くほど機械室R2の前面側に近づく傾斜板に形成されている。この傾斜により、図1および図3に示すように、下部板部44が、機械室R2内に配置された冷媒回路構成部品(配管など)と機械室R2の前面との間の空間内に延在すると共に、上記部品の配置スペースを十分に確保することができる。この下部板部44には、図3に示すように、その前面に、ターミナルベースなどの配線接続部品57、および、基板アース線および端子アース線などを接続する線接続部58などが配置され、これにより、機械室R2の前面側から配線接続作業などを容易に行うことが可能に構成されている。   Further, as shown in FIGS. 5 and 7C, the lower plate portion 44 extends forward from the lower edge 42Y of the plate portion 42 substantially horizontally and then bends obliquely downward and goes downward. It is formed in the inclination board which approaches the front side of machine room R2. Due to this inclination, as shown in FIGS. 1 and 3, the lower plate portion 44 extends into the space between the refrigerant circuit components (such as piping) disposed in the machine room R2 and the front surface of the machine room R2. In addition, a sufficient space for arranging the components can be secured. As shown in FIG. 3, the lower plate portion 44 is provided with a wiring connection component 57 such as a terminal base, a line connection portion 58 for connecting a substrate ground wire and a terminal ground wire, and the like on the front surface thereof. Thereby, it is comprised so that wiring connection operation | work etc. can be performed easily from the front side of machine room R2.

図8は上部仕切り板15Aの四面図であり、図8(A)は平面図であり、図8(B)は上面図であり、図8(C)は前面図であり、図8(D)は背面図である。なお、図8(B)において、室外ユニット10の前面側を「FRONT」、背面側を「REAR」、熱交換室R1側を「R1」、機械室R2側を「R2」と示している。
この上部仕切り板15Aについても、電装ユニット支持板41と同様に、一枚の金属板に曲げ加工などの板金加工を行って形成されている。上部仕切り板15Aは、図8(B)に示すように、上面視で、室外ユニット10の前後方向に延びる共に、その前縁側の一部を熱交換室R1側に突出するように略く字状に曲げて形成され、背面側から順に、室外ユニット10の前後方向に沿って前面側に延びる仕切り板後部15A1と、仕切り板後部15A1の前端から熱交換室R1側に傾斜する仕切り板傾斜部15A2と、この仕切り板傾斜部15A2の前端から前面側に向けて略垂直に屈曲する仕切り板屈曲部15A3と、この仕切り板屈曲部15A3の前端から室外ユニット10の前後方向に沿って室外ユニット10(ユニットケース11)の前面までに延びた後にその前面に沿って垂直に屈曲する仕切り板前部15A4とを一体に備えて構成される。
8A and 8B are four views of the upper partition plate 15A, FIG. 8A is a plan view, FIG. 8B is a top view, FIG. 8C is a front view, and FIG. ) Is a rear view. In FIG. 8B, the front side of the outdoor unit 10 is indicated as “FRONT”, the back side as “REAR”, the heat exchange chamber R1 side as “R1”, and the machine room R2 side as “R2”.
Similarly to the electrical unit support plate 41, the upper partition plate 15A is formed by subjecting a single metal plate to sheet metal processing such as bending. As shown in FIG. 8B, the upper partition plate 15A extends in the front-rear direction of the outdoor unit 10 as viewed from above, and has a substantially rectangular shape so that a part of the front edge protrudes toward the heat exchange chamber R1. A partition plate rear portion 15A1 that is bent in a shape and extends in order from the back side to the front side along the front-rear direction of the outdoor unit 10, and a partition plate inclined portion that inclines from the front end of the partition plate rear portion 15A1 toward the heat exchange chamber R1. 15A2, a partition plate bending portion 15A3 that bends substantially vertically from the front end of the partition plate inclined portion 15A2 toward the front surface side, and the outdoor unit 10 along the front-rear direction of the outdoor unit 10 from the front end of the partition plate bending portion 15A3. A partition plate front portion 15A4 that extends to the front surface of the (unit case 11) and then bends vertically along the front surface is integrally provided.

この上部仕切り板15Aは、図4に示すように、ユニットケース11内に配置された場合、その後端(仕切り板後部15A1の後端)が熱交換器21近傍に位置し、その前端(仕切り板前部15A4の前端)がユニットケース11の前面近傍になるように取り付けられ、仕切り板傾斜部15A2と仕切り板屈曲部15A3とによって、熱交換室R1側に略く字状に突出するく字状部16が形成される。そして、このく字状部16を基準にして、室外ユニット11背面側に位置する仕切り板後部15A1には、その機械室R2側の面に、図5に示すように、複数のリアクタなどの電装ユニット59が配置される。   As shown in FIG. 4, when the upper partition plate 15A is disposed in the unit case 11, the rear end (the rear end of the partition plate rear portion 15A1) is located in the vicinity of the heat exchanger 21, and the front end (the front of the partition plate) The front end of the portion 15A4 is attached in the vicinity of the front surface of the unit case 11, and a square-shaped portion that protrudes in a substantially square shape toward the heat exchange chamber R1 by the partition plate inclined portion 15A2 and the partition plate bent portion 15A3. 16 is formed. The partition plate rear portion 15A1 located on the back side of the outdoor unit 11 with the character-shaped portion 16 as a reference is provided on the machine room R2 side surface, as shown in FIG. A unit 59 is arranged.

また、上述した電装ユニット支持板41は、上部仕切り板15Aにおける仕切り板屈曲部15A3と仕切り板前部15A4との境、つまり、く字状部16の前端部に略当接するように連結され、この状態で、上部仕切り板15Aにおける仕切り板傾斜部15A2は、電装ユニット支持板41の傾斜板部43の傾斜に略沿うようにその傾斜角度が設定されている。   Further, the above-described electrical unit support plate 41 is connected so as to be substantially in contact with the boundary between the partition plate bending portion 15A3 and the partition plate front portion 15A4 in the upper partition plate 15A, that is, the front end portion of the character-shaped portion 16. In this state, the inclination angle of the partition plate inclined portion 15A2 in the upper partition plate 15A is set so as to substantially follow the inclination of the inclined plate portion 43 of the electrical unit support plate 41.

この構成により、上述した電装ユニット支持板41の傾斜板部43と、上部仕切り板15Aの仕切り板傾斜部15A2と仕切り板屈曲部15A3とによって、上面視で、機械室R2の略中央から熱交換室R1の前面側(送風機22側)に向かって斜め方向に延在する袋穴状の空間SPが形成され、この空間SP内には、傾斜板部43の背面に取り付けられたヒートシンク60が収まる。
なお、上記空間SPの底には、仕切り板傾斜部15A2又は仕切り板屈曲部15A3の下方に折り曲げて形成した底板15A5が設けられ、ヒートシンク60の取付台として機能している。また、仕切り板屈曲部15A3の下端は、図8(C)および図6(B)に示すように、面取り部15A6が形成され、この面取り部15A6により送風機22(プロペラファン27)との干渉を回避して仕切り板15を送風機22に近接配置できるようにしている。
With this configuration, the inclined plate portion 43 of the electrical unit support plate 41, the partition plate inclined portion 15A2 of the upper partition plate 15A, and the partition plate bent portion 15A3 perform heat exchange from substantially the center of the machine room R2 in top view. A bag hole-shaped space SP extending in an oblique direction toward the front surface side (blower 22 side) of the chamber R1 is formed, and the heat sink 60 attached to the back surface of the inclined plate portion 43 is accommodated in the space SP. .
The bottom of the space SP is provided with a bottom plate 15A5 formed by being bent below the partition plate inclined portion 15A2 or the partition plate bending portion 15A3, and functions as a mounting base for the heat sink 60. Further, as shown in FIG. 8C and FIG. 6B, a chamfered portion 15A6 is formed at the lower end of the partition plate bent portion 15A3, and the chamfered portion 15A6 interferes with the blower 22 (propeller fan 27). In order to avoid this, the partition plate 15 can be disposed close to the blower 22.

ヒートシンク60は、上述した複数のフィンにより放熱面積を増やし、該フィンにより熱を空気中に放熱することによって第2電装ユニット(第2電装基板52および発熱部品53)を冷却するものである。
本実施形態では、このヒートシンク60を冷却する冷却風を通す通風孔70、71を、上部仕切り板15Aの仕切り板傾斜部15A2と仕切り板屈曲部15A3との一部を熱交換室R1側に切り起こして形成しており、これら通風孔70、71を介してヒートシンク60を通過した冷却風を熱交換室R1に導入させるようにしている。
The heat sink 60 cools the second electrical unit (the second electrical component substrate 52 and the heat generating component 53) by increasing the heat radiation area with the plurality of fins described above and radiating heat into the air with the fins.
In the present embodiment, the ventilation holes 70 and 71 through which the cooling air for cooling the heat sink 60 is passed are cut into a part of the partition plate inclined portion 15A2 and the partition plate bent portion 15A3 of the upper partition plate 15A to the heat exchange chamber R1 side. The cooling air that has been raised is introduced and the cooling air that has passed through the heat sink 60 through the ventilation holes 70 and 71 is introduced into the heat exchange chamber R1.

詳述すると、仕切り板傾斜部15A2には、図8(A)(B)(D)に示すように、略コの字状の切り込み80を上下に間隔を空けて形成し、各切り込み80に囲まれる部分81を熱交換室R1側に屈曲することによって、熱交換室R1に連通する上下一対の縦長の通風孔70が形成される。
この場合、図8(B)に示すように、上記各切り込み80に囲まれる部分81の傾斜角度(屈曲角度)を角度θ1とし、仕切り板後部15A1に対する仕切り板傾斜部15A2の傾斜角度(屈曲角度)θ2とした場合、通風孔70の出口側の角度範囲を、室外ユニット10の前面と平行な面Fに対する角度θxで示すと、出口側角度θxを(180度−θ2)〜(180度−θ2+θ1)の範囲と表すことができる。
More specifically, as shown in FIGS. 8A, 8B, and 8D, the partition plate inclined portion 15A2 is formed with substantially U-shaped cuts 80 spaced apart from each other. By bending the enclosed portion 81 toward the heat exchange chamber R1, a pair of upper and lower vertically ventilating holes 70 communicating with the heat exchange chamber R1 are formed.
In this case, as shown in FIG. 8B, the inclination angle (bending angle) of the portion 81 surrounded by each of the notches 80 is an angle θ1, and the inclination angle (bending angle) of the partition plate inclined portion 15A2 with respect to the partition plate rear portion 15A1. ) When θ2 is set, when the angle range on the outlet side of the vent hole 70 is represented by an angle θx with respect to the plane F parallel to the front surface of the outdoor unit 10, the outlet side angle θx is (180 degrees −θ2) to (180 degrees − It can be expressed as a range of θ2 + θ1).

本実施形態では、通風孔70が、上述の角度θ1の調整により、熱交換室R1の送風機22の負圧側(吸込側とも言う)に向くように形成されている。ここで、送風機22の負圧側とは、機械室R2内の空気を十分に吸い込み可能な強い負圧が生じる領域であり、送風機22(プロペラファン27)の背面側に相当している。本構成では、この送風機22の負圧側が、仕切り板傾斜部15A2よりも室外ユニット10背面側に存在するため、傾斜角度θ2を130度、上記角度θ1を30度に設定することにより、出口側角度θxを(180度−θ2=50度)〜(180度−θ2+θ1=80度)の範囲としている。   In the present embodiment, the ventilation hole 70 is formed so as to face the negative pressure side (also referred to as the suction side) of the blower 22 in the heat exchange chamber R1 by adjusting the angle θ1 described above. Here, the negative pressure side of the blower 22 is a region where a strong negative pressure is generated that can sufficiently suck air in the machine room R2, and corresponds to the back side of the blower 22 (propeller fan 27). In this configuration, since the negative pressure side of the blower 22 is present on the rear side of the outdoor unit 10 with respect to the partition plate inclined portion 15A2, by setting the inclination angle θ2 to 130 degrees and the angle θ1 to 30 degrees, the outlet side The angle θx is in the range of (180 degrees−θ2 = 50 degrees) to (180 degrees−θ2 + θ1 = 80 degrees).

また、仕切り板屈曲部15A3にも、図8(A)(B)(C)に示すように、略コの字状の切り込み85を上下に間隔を空けて形成し、各切り込み85に囲まれた部分86を熱交換室R1側に屈曲することによって、熱交換室R1に連通する上下一対の縦長の通風孔71を2列で形成している。
これら通風孔71についても、通風孔70と同様に、熱交換室R1の送風機22の負圧側(吸込側)に向くように形成されている。すなわち、送風機22の負圧側が、仕切り板屈曲部15A3よりも室外ユニット10背面側に存在するため、上記各切り込み85に囲まれる部分86の傾斜角度(屈曲角度)を角度θ1’とした場合、通風孔71の出口側の角度範囲を、室外ユニット10の前面と平行な面Fに対する角度θxで示すと、通風孔71の出口側角度θxは、θ2〜(θ2+θ1’)の範囲と表すことができる。本構成では、角度θ1’を30度(角度θ2は130度)に設定することにより、出口側角度θxを(θ2=130度)〜(θ2+θ1=160度)の範囲としている。
Further, as shown in FIGS. 8 (A), (B), and (C), a substantially U-shaped cut 85 is also formed in the partition plate bent portion 15A3 with a space in the vertical direction, and is surrounded by the cuts 85. By bending the portion 86 toward the heat exchange chamber R1, a pair of upper and lower vertical ventilation holes 71 communicating with the heat exchange chamber R1 are formed in two rows.
These ventilation holes 71 are also formed so as to face the negative pressure side (suction side) of the blower 22 in the heat exchange chamber R <b> 1, similarly to the ventilation holes 70. That is, since the negative pressure side of the blower 22 exists on the back side of the outdoor unit 10 with respect to the partition plate bending portion 15A3, when the inclination angle (bending angle) of the portion 86 surrounded by each of the cuts 85 is an angle θ1 ′, When the angle range on the outlet side of the ventilation hole 71 is indicated by an angle θx with respect to the plane F parallel to the front surface of the outdoor unit 10, the outlet side angle θx of the ventilation hole 71 can be expressed as a range of θ2− (θ2 + θ1 ′). it can. In this configuration, by setting the angle θ1 ′ to 30 degrees (the angle θ2 is 130 degrees), the outlet side angle θx is in the range of (θ2 = 130 degrees) to (θ2 + θ1 = 160 degrees).

このように、本実施形態では、通風孔70、71を、熱交換室R1の送風機22の負圧側に向くように形成したので、ヒートシンク60を冷却する冷却風を熱交換室R1に十分に引き込むことが可能になる。また、上記通風孔70、71が、ヒートシンク60の熱交換室R1側の端部側に形成されるので、ヒートシンク60を冷却する冷却風を、ヒートシンク60の熱交換室R1側の端部まで行き渡らせることができ、ヒートシンク60全面に冷却風を流して十分な冷却を可能にすると共に、通風孔70、71全体の開口面積を十分に確保することができる。また、図4に示すように、プロペラファン27の前面側がファン覆い部28で覆われるため、ファン覆い部28の周囲は殆ど負圧が生じないが、通風孔70、71がファン覆い部28の反対側を向くので、ファン覆い部28の周囲を避けて熱交換室R1内の負圧側に確実に冷却風を導入することができる。
さらに、これら通風孔70、71を仕切り板15(上部仕切り板15A)の一部を切り起こして形成したので、別部品を使用することなく、簡易に設けることができる。
Thus, in this embodiment, since the ventilation holes 70 and 71 were formed so that it might face the negative pressure side of the air blower 22 of the heat exchange chamber R1, the cooling air which cools the heat sink 60 was fully drawn in to the heat exchange chamber R1. It becomes possible. Further, since the ventilation holes 70 and 71 are formed on the end portion side of the heat sink 60 on the heat exchange chamber R1 side, the cooling air for cooling the heat sink 60 is distributed to the end portion of the heat sink 60 on the heat exchange chamber R1 side. The cooling air can be allowed to flow over the entire surface of the heat sink 60 to allow sufficient cooling, and a sufficient opening area of the entire ventilation holes 70 and 71 can be secured. Further, as shown in FIG. 4, since the front side of the propeller fan 27 is covered with the fan cover portion 28, almost no negative pressure is generated around the fan cover portion 28, but the ventilation holes 70 and 71 are provided on the fan cover portion 28. Since it faces toward the opposite side, it is possible to reliably introduce the cooling air to the negative pressure side in the heat exchange chamber R1 while avoiding the periphery of the fan cover portion 28.
Furthermore, since these ventilation holes 70 and 71 are formed by cutting and raising a part of the partition plate 15 (upper partition plate 15A), they can be easily provided without using separate parts.

次に機械室R1内を冷却する冷却風の流れについて説明する。本構成の室外ユニット10の機械室R2には、図3に示すように、その前面の外側面(右側面)側下方、および、背面の外側面(右側面)側下方とに各々通風孔75、76が形成される。
このため、図3および図4に冷却風(外気)の流れを実線矢印で示すように、送風機22の回転中は、送風機22の負圧により機械室R2前後に設けられた通風孔75、76が外気導入口として機能し、外気がこれら通風孔75、76を介して機械室R2内に導入される。この外気、つまり、冷却風は、機械室R2下方から導入されるため、圧縮機31などの冷媒回路構成部品の周辺を上方へ流れてこれら部品を空冷した後に、電装ユニット支持板41を境にして前面側と背面側とを上方へ流れる。
Next, the flow of cooling air for cooling the machine room R1 will be described. In the machine room R2 of the outdoor unit 10 of this configuration, as shown in FIG. 3, a ventilation hole 75 is provided respectively on the lower side of the front surface (right side surface) and the lower side of the rear surface (right side surface). , 76 are formed.
For this reason, as shown by solid line arrows in FIG. 3 and FIG. 4, the flow of the cooling air (outside air), while the blower 22 is rotating, the ventilation holes 75 and 76 provided in front of and behind the machine room R2 due to the negative pressure of the blower 22. Functions as an outside air introduction port, and outside air is introduced into the machine room R2 through the ventilation holes 75 and 76. Since this outside air, that is, the cooling air is introduced from the lower side of the machine room R2, it flows upward around the refrigerant circuit components such as the compressor 31 to air-cool these components, and then the electric unit support plate 41 is used as a boundary. And flows upward on the front side and the back side.

この冷却風のうち、電装ユニット支持板41の前面側を流れる冷却風は、電装ユニット支持板41前面の第1電装ユニットを空冷した後に電装ユニット支持板41を乗り越えてその背面側に流れ、電装ユニット支持板41の背面に沿ってヒートシンク60へ導かれる。また、電装ユニット支持板の背面側を流れる冷却風は、電装ユニット支持板41の背面および仕切り板15の機械室R2側の面に沿って流れてヒートシンク60へ導かれる。これによって、電装ユニット支持板41および仕切り板15によって、機械室R2内の冷却風が、その流れを大きく曲げることなくヒートシンク60内へ円滑に流れる。そして、ヒートシンク60を流れる冷却風は、上部仕切り板15Aの上記通風孔70、71を通って熱交換室R1内の送風機22の負圧側に流れ、ファン覆い部28の開口部を通って外に排出される。これによって、機械室R2内の各種部品を冷却することができる。   Of this cooling air, the cooling air flowing on the front side of the electrical unit support plate 41 cools the first electrical unit on the front side of the electrical unit support plate 41 and then flows over the electrical unit support plate 41 to the back side thereof. It is guided to the heat sink 60 along the back surface of the unit support plate 41. In addition, the cooling air flowing on the back side of the electrical unit support plate flows along the back side of the electrical unit support plate 41 and the surface of the partition plate 15 on the machine room R2 side and is guided to the heat sink 60. Thereby, the cooling air in the machine room R2 smoothly flows into the heat sink 60 without greatly bending the flow by the electrical unit support plate 41 and the partition plate 15. Then, the cooling air flowing through the heat sink 60 flows to the negative pressure side of the blower 22 in the heat exchange chamber R1 through the ventilation holes 70 and 71 of the upper partition plate 15A, and to the outside through the opening of the fan cover 28. Discharged. Thereby, various components in the machine room R2 can be cooled.

以上説明したように、本実施の形態では、電装ユニット支持板41を、機械室R2の前面に沿って熱交換室R1側に延びる板部42と、この板部42から熱交換室R1の前面側に向かって傾斜して仕切り板15に至る傾斜板部43とで構成し、板部42と傾斜板部43の前面に第1電装ユニットおよび第2電装ユニットを各々配置したので、電装ユニット支持板41にまっすぐな平板を適用したものに比して、電装ボックス40の前面投影面積の低減を図ることができると共に、電装ユニット支持板41に一端側を前面側に折り曲げた上面視L字形状を適用したものに比して、第1電装ユニットおよび第2電装ユニットが前面に向けて露出し、これらのメンテナンス作業を容易に行うことが可能になる。   As described above, in the present embodiment, the electrical unit support plate 41 includes the plate portion 42 extending toward the heat exchange chamber R1 along the front surface of the machine room R2, and the front surface of the heat exchange chamber R1 from the plate portion 42. Since the first electric unit and the second electric unit are arranged on the front surface of the plate part 42 and the inclined plate part 43, the electric unit support is provided. The front projection area of the electrical box 40 can be reduced as compared with the case where a straight flat plate is applied to the plate 41, and an L-shape in a top view in which one end side of the electrical unit support plate 41 is bent to the front side. Compared to the case of applying the above, the first electrical unit and the second electrical unit are exposed toward the front surface, and it becomes possible to easily perform these maintenance operations.

しかも、電装ユニット支持板41の傾斜板部43と仕切り板15とで囲まれた袋穴状の空間SP内に第2電装ユニットを冷却するヒートシンク60を配置し、仕切り板15に、上記板部42および傾斜板部43の背面を流れてヒートシンク60を冷却する冷却風を送風機22の負圧側に導入する通風孔70、71を設けたので、冷却風を熱交換室R1内に円滑に流すことができ、機械室R1内に十分な冷却風を流すことができる。
従って、本願構成は、電装ボックス40の前面投影面積の低減と、機械室R2に十分な冷却風を流すこととの両立を図ることが可能になる。
In addition, a heat sink 60 for cooling the second electrical unit is disposed in the bag hole-shaped space SP surrounded by the inclined plate portion 43 of the electrical unit support plate 41 and the partition plate 15, and the plate portion is disposed on the partition plate 15. 42 and the ventilating holes 70 and 71 for introducing cooling air for cooling the heat sink 60 to the negative pressure side of the blower 22 through the back surface of the inclined plate portion 43 and the inclined plate portion 43 are provided, so that the cooling air can flow smoothly into the heat exchange chamber R1. And sufficient cooling air can flow in the machine room R1.
Therefore, the configuration of the present application can achieve both the reduction of the front projection area of the electrical box 40 and the flow of sufficient cooling air to the machine room R2.

以上、本発明の一実施形態について説明したが、本発明はこれに限定されるものではなく、種々の変更実施が可能である。例えば、電装ボックス40に配置する第1電装ユニットおよび第2電装ユニットは、上述の電装ユニットに限らず、適宜変更が可能である。また、電装ボックス40の電装ユニット支持板41の背面側の空間を、他の電装ユニットの配置スペースに利用したり、配管などの冷媒回路構成部品の配置スペースに利用したりしてもよく、各種部品のレイアウトを適宜変更してもよい。また、電装ユニット支持板41は、少なくとも上記板部42と傾斜板部43とを形成すればよく、これらで必要な電装ユニットを配置可能な場合は下部板部44を省略してもよい。また、送風機22を一台配置した室外ユニットに限らず、複数台配置した室外ユニットにも適用可能である。   As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this, A various change implementation is possible. For example, the first electrical unit and the second electrical unit disposed in the electrical box 40 are not limited to the electrical unit described above, and can be changed as appropriate. In addition, the space on the back side of the electrical unit support plate 41 of the electrical box 40 may be used as a layout space for other electrical units, or as a layout space for refrigerant circuit components such as piping. You may change the layout of components suitably. The electrical unit support plate 41 only needs to form at least the plate portion 42 and the inclined plate portion 43, and the lower plate portion 44 may be omitted when necessary electrical units can be disposed. Moreover, it is applicable not only to the outdoor unit in which one fan 22 is arranged, but also to an outdoor unit in which a plurality of fans 22 are arranged.

本実施形態に係る室外ユニットを前面から見た図である。It is the figure which looked at the outdoor unit which concerns on this embodiment from the front. 室外ユニットを上方から見た図である。It is the figure which looked at the outdoor unit from the upper part. 室外ユニットの機械室の縦断面を示す図である。It is a figure which shows the longitudinal cross-section of the machine room of an outdoor unit. 機械室を上面から見た図である。It is the figure which looked at the machine room from the upper surface. 電装ボックスをその周辺構成と共に室外ユニットの略前面側から見た斜視図である。It is the perspective view which looked at the electrical equipment box from the substantially front side of the outdoor unit together with its peripheral configuration. (A)は電装ボックスをその周辺構成と共に室外ユニットの略背面側から見た斜視図であり、(B)は機械室側から見た斜視図である。(A) is the perspective view which looked at the electrical equipment box from the substantially back side of the outdoor unit with the peripheral composition, and (B) is the perspective view seen from the machine room side. (A)は電装ユニット支持板の平面図であり、(B)は上面図であり、(C)は左側面図である。(A) is a top view of an electrical equipment unit support plate, (B) is a top view, and (C) is a left side view. (A)は上部仕切り板の平面図であり、(B)は上面図であり、(C)は前面図であり、(D)は背面図である。(A) is a top view of an upper partition plate, (B) is a top view, (C) is a front view, and (D) is a rear view.

符号の説明Explanation of symbols

10 室外ユニット
11 ユニットケース(筐体)
15 仕切り板
15A 上部仕切り板
15A1 仕切り板後部
15A2 仕切り板傾斜部(曲げ部)
15A3 仕切り板屈曲部
15A4 仕切り板前部
15B 下部仕切り板
16 く字状部16
21 熱交換器
22 送風機
26 ファンモータ
27 プロペラファン(軸流ファン)
28 ファン覆い部
31 圧縮機
40 電装ボックス
41 電装ユニット支持板
42 板部
43 傾斜板部
44 下部板部
50、55、56、59 電装ユニット
51 第1電装基板
52 第2電装基板
53 発熱部品
57 配線接続部品
58 線接続部
60 ヒートシンク
70、71 通風孔
R1 熱交換室
R2 機械室
10 Outdoor unit 11 Unit case (housing)
15 Partition plate 15A Upper partition plate 15A1 Partition plate rear portion 15A2 Partition plate inclined portion (bending portion)
15A3 Partition plate bending portion 15A4 Partition plate front portion 15B Lower partition plate 16 Character-shaped portion 16
21 Heat Exchanger 22 Blower 26 Fan Motor 27 Propeller Fan (Axial Fan)
28 Fan cover 31 Compressor 40 Electrical box 41 Electrical unit support plate 42 Plate part 43 Inclined plate part 44 Lower plate part 50, 55, 56, 59 Electrical unit 51 First electrical board 52 Second electrical board 53 Heating component 57 Wiring Connection part 58 Wire connection part 60 Heat sink 70, 71 Ventilation hole R1 Heat exchange room R2 Machine room

Claims (6)

ユニットケース内を仕切り板で縦に仕切り、熱交換室には熱交換器および送風機を収容し、機械室には圧縮機および電装ボックスを収容した室外ユニットにおいて、
前記電装ボックスは、前記機械室の前面側に配置され、該機械室の幅方向に延在する電装ユニット支持板を備え、
この電装ユニット支持板は、前記機械室の外側面近傍から該機械室の前面に沿って熱交換室側に延びる板部と、この板部から前記熱交換室の前面側に向かって傾斜して延び、前記仕切り板に至る傾斜板部とを有し、
前記板部の前面に、第1電装ユニットを配置すると共に、前記傾斜板部の前面に、第2電装ユニットを配置し、
前記仕切り板に、前記傾斜板部の背面側で該傾斜板部に略沿う仕切り板傾斜部を設け、この仕切り板傾斜部と前記傾斜板部とで囲まれた袋穴状の空間に前記第2電装ユニットの熱を放出するヒートシンクを配置し、
前記仕切り板傾斜部には、前記板部および前記傾斜板部の背面を流れ、前記ヒートシンクを冷却する冷却風を、前記熱交換室の前記送風機の負圧側に導入可能な通風孔を設けたことを特徴とする室外ユニット。
In the outdoor unit in which the inside of the unit case is partitioned vertically by a partition plate, the heat exchanger contains a heat exchanger and a blower, and the machine room contains a compressor and an electrical box.
The electrical box is disposed on the front side of the machine room, and includes an electrical unit support plate extending in the width direction of the machine room,
The electrical unit support plate includes a plate portion extending from the vicinity of the outer surface of the machine room to the heat exchange chamber side along the front surface of the machine room, and an inclination from the plate portion toward the front side of the heat exchange chamber. And an inclined plate part extending to the partition plate,
A first electrical unit is disposed on the front surface of the plate portion, and a second electrical unit is disposed on the front surface of the inclined plate portion,
The partition plate is provided with a partition plate inclined portion substantially along the inclined plate portion on the back side of the inclined plate portion, and the bag hole-shaped space surrounded by the partition plate inclined portion and the inclined plate portion 2 Place a heat sink to release the heat of the electrical unit,
The partition plate inclined portion is provided with a vent hole through which the cooling air that flows through the plate portion and the back surface of the inclined plate portion and cools the heat sink can be introduced to the negative pressure side of the blower in the heat exchange chamber. An outdoor unit characterized by
請求項1に記載の室外ユニットにおいて、
前記仕切り板は、前記仕切り板傾斜部から屈曲して前記機械室の前面側に延びる仕切り板屈曲部を有し、この仕切り板屈曲部、前記仕切り板傾斜部および前記傾斜板部とによって前記袋穴状の空間を形成し、前記仕切り板屈曲部には、前記ヒートシンクを冷却する冷却風を、前記熱交換室の前記送風機の負圧側に導入可能な他の通風孔を設けたことを特徴とする室外ユニット。
In the outdoor unit according to claim 1,
The partition plate has a partition plate bent portion that is bent from the partition plate inclined portion and extends to the front side of the machine room, and the bag is formed by the partition plate bent portion, the partition plate inclined portion, and the inclined plate portion. A hole-shaped space is formed, and the vent of the partition plate is provided with another ventilation hole through which cooling air for cooling the heat sink can be introduced to the negative pressure side of the blower in the heat exchange chamber. Outdoor unit to play.
請求項1又は2に記載の室外ユニットにおいて、
前記通風孔を、前記送風機の背面側に向けて開口させたことを特徴とする室外ユニット。
The outdoor unit according to claim 1 or 2,
The outdoor unit, wherein the ventilation hole is opened toward the back side of the blower.
請求項3に記載の室外ユニットにおいて、
前記通風孔を、前記仕切り板を前記熱交換室側に切り起こして形成したことを特徴とする室外ユニット。
The outdoor unit according to claim 3,
The outdoor unit, wherein the ventilation hole is formed by cutting and raising the partition plate toward the heat exchange chamber.
請求項1乃至4のいずれか一項に記載の室外ユニットにおいて、
前記電装ユニット支持板の上縁を前記仕切り板の上縁よりも低くして前記ユニットケースの天板と前記電装ユニット支持板との間に通風路を設けたことを特徴とする室外ユニット。
In the outdoor unit according to any one of claims 1 to 4,
An outdoor unit characterized in that the upper edge of the electrical unit support plate is made lower than the upper edge of the partition plate and an air passage is provided between the top plate of the unit case and the electrical unit support plate.
請求項1乃至5のいずれか一項に記載の室外ユニットにおいて、
前記第2電装ユニットが前記第1電装ユニットよりも発熱量が多いことを特徴とする室外ユニット。
The outdoor unit according to any one of claims 1 to 5,
The outdoor unit, wherein the second electrical unit has a larger amount of heat generation than the first electrical unit.
JP2007195596A 2007-07-27 2007-07-27 Outdoor unit Expired - Fee Related JP4859776B2 (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2010200570A1 (en) * 2009-03-31 2010-10-14 Mitsubishi Electric Corporation Outdoor unit of air conditioner
CN101893286A (en) * 2009-05-20 2010-11-24 三洋电机株式会社 Outdoor unit
JP2014070816A (en) * 2012-09-28 2014-04-21 Daikin Ind Ltd Outdoor unit of air conditioner
US8713961B2 (en) 2009-05-20 2014-05-06 Sanyo Electric Co., Ltd. Outdoor unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109084381A (en) * 2018-10-17 2018-12-25 奥克斯空调股份有限公司 A kind of ventilation and heat structure and air conditioner

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JPH0270133A (en) * 1988-09-06 1990-03-09 Nec Corp Individual selective calling receiver with display
JPH0886473A (en) * 1994-09-20 1996-04-02 Fujitsu General Ltd Outdoor machine of air conditioner
JP2003056865A (en) * 2001-08-09 2003-02-26 Toshiba Kyaria Kk Outdoor unit for air conditioner
JP2005076925A (en) * 2003-08-29 2005-03-24 Daikin Ind Ltd Electrical equipment unit of outdoor unit, and outdoor unit of air conditioner with it
JP2007093116A (en) * 2005-09-29 2007-04-12 Hitachi Ltd Outdoor unit

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0270133A (en) * 1988-09-06 1990-03-09 Nec Corp Individual selective calling receiver with display
JPH0886473A (en) * 1994-09-20 1996-04-02 Fujitsu General Ltd Outdoor machine of air conditioner
JP2003056865A (en) * 2001-08-09 2003-02-26 Toshiba Kyaria Kk Outdoor unit for air conditioner
JP2005076925A (en) * 2003-08-29 2005-03-24 Daikin Ind Ltd Electrical equipment unit of outdoor unit, and outdoor unit of air conditioner with it
JP2007093116A (en) * 2005-09-29 2007-04-12 Hitachi Ltd Outdoor unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2010200570A1 (en) * 2009-03-31 2010-10-14 Mitsubishi Electric Corporation Outdoor unit of air conditioner
AU2010200570B2 (en) * 2009-03-31 2010-12-23 Mitsubishi Electric Corporation Outdoor unit of air conditioner
CN101893286A (en) * 2009-05-20 2010-11-24 三洋电机株式会社 Outdoor unit
US8713961B2 (en) 2009-05-20 2014-05-06 Sanyo Electric Co., Ltd. Outdoor unit
JP2014070816A (en) * 2012-09-28 2014-04-21 Daikin Ind Ltd Outdoor unit of air conditioner

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CN101354162B (en) 2010-07-28
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