JP2007198705A

JP2007198705A - Outdoor unit for air conditioner

Info

Publication number: JP2007198705A
Application number: JP2006020295A
Authority: JP
Inventors: Kiyoshi Abe; 清阿部; Yusuke Taruki; 裕介樽木
Original assignee: Corona Corp
Current assignee: Corona Corp
Priority date: 2006-01-30
Filing date: 2006-01-30
Publication date: 2007-08-09

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an accident such as short-circuit of an electric part or functional damage by intrusion of an insect or small animal into an electric part box 17. <P>SOLUTION: In the outdoor unit for air conditioner provided with the electric part box 17, which comprises a casing the inside of which is divided into a heat exchange chamber 8 including a fan and a heat exchanger and a machine chamber 9 including a compressor by a partition plate, and is adapted to take cooling air from the machine chamber 9 side and discharge the cooling air distributed in the inner part to the heat exchange chamber 8 side, a cooling air suction port 20 and a cooling air exhaust port 21 provided in the electric par box 17 are formed in a mesh form, whereby the risk of failure such as functional damage by short-circuit of an electric part such as a printed board stored in the electric part box 17 can be prevented. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、空気調和機に関し、特に、室外ユニット内への害虫の侵入対策に関するものである。 The present invention relates to an air conditioner, and more particularly to measures against insects entering an outdoor unit.

一般的に分離型空気調和機は、室外ユニットと、この室外ユニットに連絡配管を介して接続される室内ユニットとを備える。この従来の室外ユニットは、筐体１の内部を仕切板によって区画された熱交換室に、室外熱交換器及び室外熱交換器の正面側に配置されて外気を送風する室外送風機が収納されるとともに、熱交換室の側方の機械室には圧縮機、膨張弁等が収納されている。また、筐体の内部上方には、熱交換室と機械室とに跨って電装品箱が配置されており、この電装品箱の機械室側に冷却空気取入口が開口し、熱交換室の室外送風機の吸込側に冷却空気排出口が開口している。このように構成された室外ユニットでは、運転時において、室外送風機の回転により熱交換室が負圧となり、外気が外気取入口から機械室に流入し、冷却空気取入口から電装品箱内を流通して電装品を冷却し、冷却空気排気口から熱交換室へ流出する。（例えば、特許文献１参照）
特開２００３−２９４２７１号公報 Generally, the separation type air conditioner includes an outdoor unit and an indoor unit connected to the outdoor unit via a communication pipe. In this conventional outdoor unit, an outdoor fan that is arranged on the front side of the outdoor heat exchanger and the outdoor heat exchanger and that blows outside air is housed in a heat exchange chamber partitioned by a partition plate inside the housing 1. In addition, a compressor, an expansion valve, and the like are housed in a machine room on the side of the heat exchange chamber. In addition, an electrical component box is disposed above the inside of the housing across the heat exchange chamber and the machine room, and a cooling air inlet is opened on the machine room side of the electrical component box, A cooling air outlet is opened on the suction side of the outdoor fan. In the outdoor unit configured in this way, during operation, the heat exchange chamber becomes negative pressure due to the rotation of the outdoor blower, the outside air flows into the machine room from the outside air intake, and flows through the electrical component box from the cooling air intake Then, the electrical component is cooled and flows out from the cooling air exhaust port to the heat exchange chamber. (For example, see Patent Document 1)
JP 2003-294271 A

しかしながら、機械室や熱交換室に入った虫や小動物が電装品箱内に侵入し、電装品のショート、機能損壊等の事故を生ずるという問題があった。
また、製品の低価格化によりコストダウンも必要なものであった。 However, there has been a problem that insects and small animals that have entered the machine room and the heat exchange room enter the electrical component box, causing an accident such as a short circuit of the electrical component and functional breakdown.
In addition, cost reduction was necessary due to the low price of the product.

この発明はこの点に着目し、上記欠点を解決する為、特にその構成を、筐体内をファンと熱交換器とを有する熱交換室と、圧縮機を有する機械室とに仕切板によって区画し、機械室側から冷却空気を取入れ、内部を流通した冷却空気を熱交換室側に排出する電装品箱を備えた空気調和機の室外ユニットに於いて、前記電装品箱に設けた冷却空気吸込口または冷却空気排気口を網状に形成したものである。 This invention pays attention to this point, and in order to solve the above-mentioned drawbacks, in particular, the configuration is partitioned by a partition plate into a heat exchange chamber having a fan and a heat exchanger and a machine room having a compressor in the housing. In an outdoor unit of an air conditioner equipped with an electrical component box that takes in cooling air from the machine room side and discharges the cooling air that has circulated through the inside to the heat exchange chamber side, the cooling air suction provided in the electrical component box The opening or the cooling air exhaust port is formed in a net shape.

また、前記電装品箱は樹脂成形により形成され、網状の前記吸込口と排気口は電装品箱成型時に一体にて形成されるようにしたものである。 Further, the electrical component box is formed by resin molding, and the net-like suction port and exhaust port are integrally formed when the electrical component box is molded.

この発明によれば、電装品箱に設けた冷却空気吸込口と冷却空気排気口を網状に形成したので、電装品箱内に虫や小動物が侵入し、電装品のショートや機能損壊等の事故の心配がなくなった。
また、電装品箱は樹脂成形により形成され、網状の前記吸込口と排気口は電装品箱成型時に一体にて形成されるので、特別な費用もほとんど発生しないものである。 According to the present invention, since the cooling air suction port and the cooling air exhaust port provided in the electrical component box are formed in a net shape, insects and small animals invade into the electrical component box, and accidents such as short circuit of the electrical component and functional breakdown No longer worry.
Further, since the electrical component box is formed by resin molding and the net-like suction port and exhaust port are integrally formed at the time of molding the electrical component box, there is almost no special cost.

次に、この発明に係る空気調和機の室外機を図面に示された一実施例で説明する。
１は室外機の外枠を構成する筐体で、底面のベース２と前面の前板３と左側面から背面に形成された熱交換器カバー４と右側面から背面に形成された機械室側板５と上面を塞ぐ天板６とで構成されている。 Next, an outdoor unit of an air conditioner according to the present invention will be described with reference to an embodiment shown in the drawings.
Reference numeral 1 denotes a housing constituting an outer frame of the outdoor unit, a base 2 on the bottom surface, a front plate 3 on the front surface, a heat exchanger cover 4 formed from the left side to the back, and a machine room side plate formed from the right side to the back. 5 and a top plate 6 that covers the upper surface.

前記筐体１内は仕切板７によって左右方向に熱交換室８と機械室９に区画されている。
前記熱交換室８内の中央にはベース２にネジ止めされたモータ取付台１０を備え、このモータ取付台１０の高さ方向の略中央にはファンモータ１１が取り付けられている。そしてこのファンモータ１１の前方にはプロペラファン１２がファンモータ１１の回転軸に固定されている。 The inside of the casing 1 is partitioned into a heat exchange chamber 8 and a machine chamber 9 in the left-right direction by a partition plate 7.
A motor mount 10 screwed to the base 2 is provided at the center of the heat exchange chamber 8, and a fan motor 11 is mounted at a substantially center in the height direction of the motor mount 10. A propeller fan 12 is fixed to the rotating shaft of the fan motor 11 in front of the fan motor 11.

前記ファン１２の後方および左側方にはフィンチューブ式の熱交換器１３が平面視くの字型に設けられ、前記ファン１２の回転で熱交換器１３後方向或いは左側方向から空気を吸い込みファン１２前方の前記前板３にファン１２に対向して設けられた円形の吹出口１４から前方に熱交換後の空気を吹き出すものである。
前記機械室側板５の下部には、室内機（図示せず）に冷媒配管を接続する接続金具突出口１５と、機械室側板５の中央やや上部には、室内機と接続する連絡電線接続口１６を備えている。 A fin-tube heat exchanger 13 is provided in a square shape in a plan view on the rear and left sides of the fan 12, and the fan 12 sucks air from the rear or left side of the heat exchanger 13 by the rotation of the fan 12. The air after heat exchange is blown forward from a circular outlet 14 provided on the front front plate 3 facing the fan 12.
The lower part of the machine room side plate 5 has a connection fitting projection 15 for connecting a refrigerant pipe to an indoor unit (not shown), and the middle part of the machine room side plate 5 has a connection wire connection port for connection to the indoor unit. 16 is provided.

前記機械室９の上部にはプリント基板等の電子部品が収納される電装品箱１７を備え、機械室９内の中央には一番大型の部品である圧縮機１８が前記ベース２より立設されたボルト等によって取り付けられ、この圧縮機１８と電装品箱１７の間のスペースの仕切板７にリアクタ１９が取り付けられている。 An upper part of the machine room 9 is provided with an electrical component box 17 in which electronic parts such as a printed circuit board are stored, and a compressor 18 which is the largest part is erected from the base 2 in the center of the machine room 9. The reactor 19 is attached to the partition plate 7 in the space between the compressor 18 and the electrical component box 17.

前記電装品箱１７は樹脂の一体成型にて製造されるもので、電装品箱１７の前面と右側面には、機械室９と電装品箱１７内を連通する冷却空気吸込口２０を備え、電装品箱１７の背面には前記熱交換室８と電装品箱１７内を連通する冷却空気排気口２１を設けている。 The electrical component box 17 is manufactured by integral molding of resin. The electrical component box 17 includes a cooling air suction port 20 that communicates between the machine room 9 and the electrical component box 17 on the front surface and the right side surface. On the back surface of the electrical component box 17, a cooling air exhaust port 21 that communicates the heat exchange chamber 8 and the electrical component box 17 is provided.

前記吸込口２０と排気口２１は、電装品箱１７内に虫やヤモリ等の小動物が侵入して、電装品箱１７内に収納されているプリント基板等の電装品がショートして機能損壊等の故障が発生しないように、網状に形成されている。
前記吸込口２０と排気口２１の形成方法は、電装品箱１７の成型時に同時に樹脂成形によって、吸込口２０と排気口２１を網状に形成するので、よけいな費用が発生することがないものである。
また、吸込口２０と排気口２１の形成は、電装品箱１７の成型時に同時に樹脂成形せずに、樹脂製網の溶着によって取り付けても良いものである。 The suction port 20 and the exhaust port 21 may be damaged when a small animal such as an insect or a gecko enters the electrical component box 17 and the electrical component such as a printed circuit board stored in the electrical component box 17 is short-circuited. It is formed in a net shape so that no failure occurs.
The method of forming the suction port 20 and the exhaust port 21 is such that the suction port 20 and the exhaust port 21 are formed in a net shape by resin molding at the same time as the electrical component box 17 is molded. is there.
Further, the suction port 20 and the exhaust port 21 may be formed by welding a resin net instead of resin molding at the same time as the electrical component box 17 is molded.

空気調和機運転中の通風経路について説明すれば、空気調和機の運転でファンモータ１１とファン１２が回転し熱交換室８内の熱交換器１３側から吹出口１４への送風が行われる、この時熱交換室８内で電装品箱１７の冷却空気排気口２１の周囲は負圧になり、接続金具突出口１５や連絡電線接続口１６の隙間や、機械室９側のベース２に設けられた穴等（図示せず）から吸い込まれた空気はいったん機械室９に流れ込み、冷却空気吸込口２０から電装品箱１７内を通過して冷却空気排気口２１から熱交換室８へ排気することで、電装品より発生した熱を排出することができるものである。 Explaining the ventilation path during the operation of the air conditioner, the fan motor 11 and the fan 12 are rotated by the operation of the air conditioner, and air is blown from the heat exchanger 13 side in the heat exchange chamber 8 to the outlet 14. At this time, the surroundings of the cooling air exhaust port 21 of the electrical component box 17 in the heat exchange chamber 8 become negative pressure, and are provided in the gap between the connection fitting projection 15 and the connection wire connection port 16 or in the base 2 on the machine room 9 side. The air sucked from a hole or the like (not shown) once flows into the machine chamber 9, passes through the electrical component box 17 from the cooling air suction port 20, and is exhausted from the cooling air exhaust port 21 to the heat exchange chamber 8. Thus, the heat generated from the electrical component can be discharged.

また、空気調和機の運転中または停止中にかかわらず、筐体１全体の各所に存在する隙間から虫やヤモリ等の小動物が侵入しても、電装品箱１７の冷却空気吸込口２０や冷却空気排気口２１は網状に形成されるので、電装品箱１７内に虫やヤモリ等の小動物が侵入する事はなく、従って電装品箱１７内に収納されているプリント基板等の電装品がショートして機能損壊等の故障が発生する危険を防止できるものである。 Even if the air conditioner is in operation or stopped, even if a small animal such as an insect or a gecko enters through a gap existing in the entire housing 1, the cooling air inlet 20 of the electrical component box 17 or the cooling Since the air exhaust port 21 is formed in a net shape, small animals such as insects and geckos do not enter the electrical component box 17, and therefore the electrical components such as a printed circuit board housed in the electrical component box 17 are short-circuited. Thus, it is possible to prevent the risk of malfunction such as functional breakdown.

この発明一実施例の展開斜視図。1 is an exploded perspective view of an embodiment of the present invention. 同要部の斜視図。The perspective view of the principal part.

符号の説明Explanation of symbols

８熱交換室
９機械室
１７電装品箱
２０冷却空気吸込口
２１冷却空気吹出口 8 Heat exchange room 9 Machine room 17 Electrical component box 20 Cooling air inlet 21 Cooling air outlet

Claims

筐体内をファンと熱交換器とを有する熱交換室と、圧縮機を有する機械室とに仕切板によって区画し、機械室側から冷却空気を取入れ、内部を流通した冷却空気を熱交換室側に排出する電装品箱を備えた空気調和機の室外ユニットに於いて、前記電装品箱に設けた冷却空気吸込口または冷却空気排気口を網状に形成した空気調和機の室外ユニット。 The inside of the housing is partitioned by a partition plate into a heat exchange chamber having a fan and a heat exchanger, and a machine room having a compressor. The cooling air is taken in from the machine room side, and the cooling air circulated inside the heat exchange chamber side. An outdoor unit of an air conditioner provided with an electrical component box for discharging to the outside, wherein the cooling air suction port or the cooling air exhaust port provided in the electrical component box is formed in a net shape.

前記電装品箱は樹脂成形により形成され、網状の前記吸込口と排気口は電装品箱成型時に一体にて形成されることを特徴とする請求項１記載の空気調和機の室外ユニット。 The outdoor unit of an air conditioner according to claim 1, wherein the electrical component box is formed by resin molding, and the net-like suction port and exhaust port are integrally formed when the electrical component box is molded.