JP3843424B2

JP3843424B2 - Air conditioner indoor unit

Info

Publication number: JP3843424B2
Application number: JP2001381991A
Authority: JP
Inventors: 正則青木
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2001-12-14
Filing date: 2001-12-14
Publication date: 2006-11-08
Anticipated expiration: 2021-12-14
Also published as: JP2003185170A

Description

【０００１】
【発明の属する技術分野】
本発明は、空気調和機の室内機に関するものであり、特に室内機の吹き出し風路の改善に関するものである。
【０００２】
【従来の技術】
従来より空気調和機の室内機においては、吹き出し口の結露防止手段として、実願昭５４−１５８１３５号（実開昭５６−０７５６２７）マイクロフィルムに示すように、吹き出し口に段差部を設け、吹き出し口やベーンへの外部空気である室内空気の巻き込みを防止し、結露を防ぐ手段が取られている。
図４は、従来の室内機を示し、図４（ａ）は、その要部断面図であり、図４（ｂ）は、その段差部を示す要部断面図である。図４（ａ）、（ｂ）において、室内機においては、送風機４により前面パネル７の吸い込み口から吸い込まれた室内空気Ａは、冷房運転時蒸発器となる室内熱交換器３で冷却され、冷気通風路５ａで形成される吹き出し風路５に従い図示Ｂ方向に流れ、風向変更装置である上下ベーン６により流線方向を定め、吹き出し口１より室内に吹き出される。
前記吹き出し口１の周辺部表面や上下ベーン６は吹き出される冷気によって室内温度以下に冷やされるため、室内空気の巻き込みがあると結露を生じる。この結露を防ぐため、前記吹き出し口１に、寸法Ｌ１、Ｌ２の段差壁面２１、２２からなる段差部２０を設け室内空気の巻き込みを防いでいる。
【０００３】
【発明が解決しようとする課題】
このような室内機においては、安全面より指等の侵入を防ぐため吹き出し口１にファンガードを取り付ける場合があるが、ファンガードが段差部２０に接近すると、段差部２０での風の流れに影響を与え、結露防止効果をなくしてしまう場合があった。
特に、吹き出し風路５に上下ベーン６及び風向ルーバを設置した場合、ファンガードの設置場所が規制され、ファンガードが前記段差部２０に接近することが生じやすくなる。
【０００４】
本発明は前記のような問題点を解決するためになされたもので、段差部２０による結露防止効果を損なうことがないように、ファンガードを設置し、結露防止効果及び安全確保効果を両立させることを目的とする。
また、吹き出し風路５に上下ベーン６及び風向ルーバのような風向変更装置を設置した場合でも、ファンガードが段差部の結露防止効果を損なわないようにファンガードを設置し、結露防止効果、安全確保効果及び風向変更効果を得ることを目的とする。
【０００５】
【課題を解決するための手段】
本発明の請求項１の空気調和機の室内機は、送風機により、室内空気を吸入口から吸入し、室内熱交換器で熱交換後、風路壁により斜め下方に向かって形成された吹き出し風路を通し、吹き出し口から室内に吹き出し、また、風路壁の吹き出し口側先端部に結露防止用の段差部を形成した空気調和機の室内機において、吹き出し風路の途中の風路壁にファンガードを取付け、段差部へ接近するファンガードの部分を段差部に対して吹き出し風路の上流側に離れるように配置したものである。
【０００６】
また、請求項２の空気調和機の室内機は、請求項１において、ファンガードの段差部への接近部分を吹き出し風路の上流側に折り曲げることにより段差部から離れるようにしたものである。
【０００７】
また、請求項３の空気調和機の室内機は、請求項２において、吹き出し風路に、第１風向変更装置及び第１風向変更装置とは吹き出し調整方向が異なる第２風向変更装置を設置し、吹き出し風路の上流側から第１風向変更装置、ファンガード、第２風向変更装置の順に配置したものである。
ここで、第１風向変更装置及び第２風向変更装置とは、例えば、上下方向及び左右方向のように、それぞれ吹き出し調整方向が異なる風向変更装置を意味する。
【０００８】
また、請求項４の空気調和機の室内機は、請求項１において、ファンガードを二分割し、段差部に接近する方のファンガードの分割部をもう一方の分割部の風路壁の取付け部より上流側に取付けたことにより段差部から離れるようにしたものである。
【０００９】
また、請求項５の空気調和機の室内機は、請求項４において、吹き出し風路に、第１風向変更装置及び第１風向変更装置とは吹き出し調整方向が異なる第２風向変更装置を設置し、吹き出し風路の上流側から上流側に取付けたファンガードの分割部、第１風向変更装置、もう一方のファンガードの分割部、第２風向変更装置の順に配置したものである。
ここで、第１風向変更装置及び第２風向変更装置とは、例えば、上下方向及び左右方向のように、それぞれ吹き出し調整方向が異なる調整器を意味する。
【００１０】
【発明の実施の形態】
実施の形態１．
図１は、壁掛け型空気調和機の室内機の断面図、図２は、同じく吹き出し風路を示す要部断面図である。
図１、図２において、送風機４により前面パネル７の吸入口より吸い込まれた室内空気Ａは冷房運転時蒸発器となる室内熱交換器３で冷却され、ダクト１０、ケーシング１１及びスタビライザ１２等からなる風路壁２により形成される吹き出し風路５に従い図示Ｂ方向に流れ、左右の風向方向を調整する風向ルーバ８、指侵入防止等の安全確保を目的とするファンガード９、上下の風向方向を調整する上下ベーン６を通り、吹き出し口１より室内へ吹き出される。
また、風路壁２の吹き出し口側先端部には、室内空気の巻き込みによって吹き出し口の周辺部に生じる結露を防止する結露防止用の段差部２０が形成されている。
なお、図１の矢印は空気の流れを示す。
【００１１】
ファンガード９は、吹き出し風路５において、上下ベーン６と風向ルーバ８との間に配置され、風路壁２のダクト１０にネジで取り付けられている。
室内機は、風路壁２により形成される吹き出し風路５が斜め下方になるように設置されるため、風路壁２に取付けられたファンガード９は図１、図２の下側に示す段差部２０に接近しやすい。この段差部２０にファンガード２０が接近し、空気の流れに影響を与え、段差部２０の結露防止効果を損なうことがないように、図で下側に向かうファンガード９を中央部から吹き出し風路５の上流側に折り曲げ、さらにその先端部を再度折り曲げ、段差部がファンガード９から離れるようにしている。
ファンガード９は、安全確保のため、又段差部２０は室内空気の巻き込みをなくして結露を防止するため、両者ともに吹き出し風路５の吹き出し口１側に設置するのが好ましいが、前記のようにファンガード９を取付け、形成することにより段差部での室内空気の流れに影響を与えることなく、室内空気の巻き込みを防ぎ、また、安全確保も可能となる。
【００１２】
風路壁２に取付けられた、全体的に平板状のファンガード９が段差部２０に接近するのを防止するために吹き出し風路５の上流側に折り曲げる方法は、前記に限るものではなく、取付け部と反対側の先端部のみを曲げてもよいし、又曲げる場所、回数も問わない。要するに、ファンガード９を取付けることにより段差部の室内空気の巻き込み防止及び結露防止効果を損なわないように、かつ、安全確保が図れるようにできればよい。
また、本実施の形態では、ファンガード９の上流、下流側に風向ルーバ８、上下ベーン６を配設する構造としたが、それに限ることはなく、両者の配置を上流、下流反対にしても、必要に応じてどちらか一方にしても、もしくはどちらもなくても同様に結露防止効果と安全確保効果は得られる。
【００１３】
なお、室内機の吹き出し風路５において、ファンガード９の上流、下流に、風向ルーバ８、上下ベーン６のように、それぞれ、吹き出し調整方向が異なる二つの風向変更装置（第１風向変更装置、第２風向変更装置とする。但し、どちらが第１風向変更装置、第２風向変更装置でもよい。）を設置することにより、前記の両効果に加えて吹き出し方向の調節も可能となる。
さらに、独立に風向変更装置は設けずに、ファンガード９に安全機能と共に風向変更機能を持たせるようにしてもよい。この場合、上下方向、左右方向等複数の方向変更機能を持たせても、特定の変更機能を持たせ、吹き出し風路５に、独立に風向変更装置を設けてもよい。
【００１４】
実施の形態２．
図３は、壁掛け型空気調和機の室内機の吹き出し風路を示す要部断面図である。
本実施の形態では、ファンガード９の形状及び風路壁２への取付けが前記実施の形態１と異なるだけで、その他の点は同様である。
本実施の形態では、ファンガード９を二分割し、上下２つに分割し、段差部２０に接近する方のファンガードの分割部９ｂを、もう一方のファンガード９ａより、吹き出し風路５の上流側に取付け、段差部２０から離したものである。このようにすることで、ファンガード９ａは、できるだけ吹き出し口１に近く設けることで安全を確保し、ファンガード９ｂは、段差部２０の結露防止効果を損わないだけ離して設置することで、結露防止と安全確保が可能である。
【００１５】
本実施の形態では、第１風向変更装置及び第２風向変更装置を設置する場合は、吹き出し風路５の上流側からファンガード９ｂ、第１風向変更装置又は第２風向変更装置、ファンガード９ａ、第２風向変更装置又は第１風向変更装置前記実施の順に設置する。但し、第１風向変更装置及び第２風向変更装置に関しては、設置しなくてもいいし、片方だけをどちらかに設置してもよい。
また、独立の風向変更装置は設けずにファンガード９ａ、９ｂに底機能も持たせてもよい。
【００１６】
【発明の効果】
本発明の請求項１の空気調和機の室内機は、送風機により、室内空気を吸入口から吸入し、室内熱交換器で熱交換後、風路壁により斜め下方に向かって形成された吹き出し風路を通し、吹き出し口から室内に吹き出し、また、風路壁の吹き出し口側先端部に結露防止用の段差部を形成した空気調和機の室内機において、吹き出し風路の途中の風路壁にファンガードを取付け、段差部に接近するファンガードの部分を段差部に対して吹き出し風路の上流側に離れるように配置したので、段差部による吹き出し口付近での結露防止効果を打ち消すことなく、安全確保用のファンガードを取り付けることが可能となり、結露防止効果及び安全確保効果が両立できる。
【００１７】
また、請求項２の空気調和機の室内機は、請求項１において、ファンガードの段差部への接近部分を吹き出し風路の上流側に折り曲げることにより段差部から離したので、簡単に結露防止及び安全確保が可能となる。
【００１８】
また、請求項３の空気調和機の室内機は、請求項２において、吹き出し風路に、第１風向変更装置及び第１風向変更装置とは吹き出し調整方向が異なる第２風向変更装置を設置し、吹き出し風路の上流側から第１風向変更装置、ファンガード、第２風向変更装置の順に配置したので、結露防止効果及び安全確保効果が得られるとともに、方向の異なる二種類の吹き出し調整が可能となる。
【００１９】
また、請求項４の空気調和機の室内機は、請求項１において、ファンガードを二分割し、段差部に接近する方のファンガードの分割部をもう一方の分割部の風路壁の取付け部より上流側に取付けたことにより段差部から離れるようにしたので、簡単に結露防止及び安全確保が可能となる。
【００２０】
また、請求項５の空気調和機の室内機は、請求項４において、吹き出し風路に、第１風向変更装置及び第１風向変更装置とは吹き出し調整方向が異なる第２風向変更装置を設置し、吹き出し風路の上流側から上流側に取付けたファンガードの分割部、第１風向変更装置、もう一方のファンガードの分割部、第２風向変更装置の順に配置したので、結露防止効果及び安全確保効果が得られるとともに、方向の異なる二種類の吹き出し調整が可能となる。
【図面の簡単な説明】
【図１】この発明の実施の形態１の空気調和機の室内機の断面図である。
【図２】この発明の実施の形態１の空気調和機の室内機の吹き出し風路を示す要部断面図である。
【図３】この発明の実施の形態２の空気調和機の室内機の吹き出し風路を示す要部断面図である。
【図４】従来の空気調和機の室内機の断面図である。
【符号の説明】
１吹き出し口、２風路壁、３室内熱交換器、４送風機、５吹き出し風路、６第１風向変更装置（第２風向変更装置）、８第２風向変更装置（第１風向変更装置）、９ファンガード、９ａ、９ｂファンガードの分割部、２０段差部。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an indoor unit of an air conditioner, and more particularly to improvement of a blowout air passage of the indoor unit.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in an air conditioner indoor unit, as a means for preventing dew condensation at the air outlet, a step portion is provided at the air outlet, as shown in Japanese Utility Model Application No. 54-158135 (Japanese Utility Model Publication No. 56-075627) microfilm. Measures are taken to prevent dew condensation by preventing room air, which is outside air, from entering the mouth and vanes.
4A and 4B show a conventional indoor unit, FIG. 4A is a main part sectional view thereof, and FIG. 4B is a main part sectional view showing a stepped part thereof. 4 (a) and 4 (b), in the indoor unit, the indoor air A sucked from the suction port of the front panel 7 by the blower 4 is cooled by the indoor heat exchanger 3 serving as an evaporator during cooling operation, The air flows in the B direction in the figure according to the blowout air passage 5 formed by the cold air passage 5a, the stream line direction is determined by the upper and lower vanes 6 which are wind direction changing devices, and the air is blown into the room from the air outlet 1.
Since the peripheral surface of the outlet 1 and the upper and lower vanes 6 are cooled to the room temperature or less by the cool air blown out, condensation occurs when the room air is involved. In order to prevent this dew condensation, the air outlet 1 is provided with a stepped portion 20 composed of stepped wall surfaces 21 and 22 having dimensions L1 and L2 to prevent room air from being caught.
[0003]
[Problems to be solved by the invention]
In such an indoor unit, there is a case where a fan guard is attached to the air outlet 1 in order to prevent the entry of a finger or the like from the viewpoint of safety, but when the fan guard approaches the step portion 20, the wind flow at the step portion 20 In some cases, the effect of preventing condensation was lost.
In particular, when the upper and lower vanes 6 and the wind direction louver are installed in the blowing air passage 5, the installation location of the fan guard is restricted, and the fan guard tends to approach the stepped portion 20.
[0004]
The present invention has been made in order to solve the above-described problems. A fan guard is installed so as not to impair the dew condensation prevention effect due to the stepped portion 20, thereby achieving both the dew condensation prevention effect and the safety ensuring effect. For the purpose.
In addition, even when a wind direction change device such as the upper and lower vanes 6 and the wind direction louver is installed in the blowout air passage 5, the fan guard is installed so that the dew condensation prevention effect of the stepped portion is not impaired. The purpose is to obtain a securing effect and a wind direction changing effect.
[0005]
[Means for Solving the Problems]
The indoor unit of the air conditioner according to claim 1 of the present invention is a blower that is formed in a slanting downward direction by an air passage wall after sucking indoor air from a suction port by a blower and exchanging heat by an indoor heat exchanger. In an indoor unit of an air conditioner in which a step portion for preventing condensation is formed at the tip of the air outlet wall on the air outlet side of the air passage wall. A fan guard is attached, and the portion of the fan guard that approaches the stepped portion is disposed so as to be separated from the stepped portion upstream of the blowing air passage.
[0006]
An indoor unit of an air conditioner according to a second aspect of the present invention is the indoor unit according to the first aspect, wherein a portion of the fan guard that is close to the stepped portion is bent to the upstream side of the blowing air passage so as to be separated from the stepped portion.
[0007]
An indoor unit of an air conditioner according to a third aspect of the present invention is the air conditioner indoor unit according to the second aspect, wherein the second airflow direction changing device having a different airflow adjustment direction from the first airflow direction changing device and the first airflow direction changing device is installed in the blowout air passage. The first air direction changing device, the fan guard, and the second air direction changing device are arranged in this order from the upstream side of the blowing air passage.
Here, the 1st wind direction change apparatus and the 2nd wind direction change apparatus mean the wind direction change apparatus from which a blowing adjustment direction differs, respectively, like an up-down direction and a left-right direction, for example.
[0008]
According to a fourth aspect of the present invention, there is provided an air conditioner indoor unit according to the first aspect, in which the fan guard is divided into two parts, and the divided part of the fan guard approaching the step part is attached to the air passage wall of the other divided part. It is made to leave | separate from a level | step-difference part by attaching upstream from the part.
[0009]
An indoor unit of an air conditioner according to a fifth aspect of the present invention is the air conditioner indoor unit according to the fourth aspect, wherein the second airflow direction changing device having a different airflow adjustment direction from the first airflow direction changing device and the first airflow direction changing device is installed in the blowout air passage. The fan guard divided portion, the first wind direction changing device, the other fan guard divided portion, and the second wind direction changing device, which are attached from the upstream side to the upstream side of the blowing air passage, are arranged in this order.
Here, the 1st wind direction change apparatus and the 2nd wind direction change apparatus mean the adjusters from which a blowing adjustment direction differs, respectively, like an up-down direction and a left-right direction, for example.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 is a cross-sectional view of an indoor unit of a wall-mounted air conditioner, and FIG. 2 is a cross-sectional view of an essential part showing a blowout air passage.
In FIG. 1 and FIG. 2, the indoor air A sucked from the suction port of the front panel 7 by the blower 4 is cooled by the indoor heat exchanger 3 serving as an evaporator during cooling operation, and from the duct 10, the casing 11, the stabilizer 12, and the like. A wind direction louver 8 that adjusts the left and right wind direction directions, a fan guard 9 for ensuring safety such as finger intrusion prevention, and the upper and lower wind direction directions. The air passes through the upper and lower vanes 6 and is blown out into the room through the air outlet 1.
Further, a step portion 20 for preventing condensation is formed at the front end portion of the air passage wall 2 at the outlet side to prevent dew condensation occurring in the peripheral portion of the outlet due to the entrainment of room air.
In addition, the arrow of FIG. 1 shows the flow of air.
[0011]
The fan guard 9 is disposed between the upper and lower vanes 6 and the wind direction louver 8 in the blowing air passage 5 and is attached to the duct 10 of the air passage wall 2 with screws.
Since the indoor unit is installed so that the blowing air passage 5 formed by the air passage wall 2 is obliquely below, the fan guard 9 attached to the air passage wall 2 is shown on the lower side of FIGS. It is easy to approach the step portion 20. In order to prevent the fan guard 20 from approaching the stepped portion 20 to affect the air flow and impair the dew condensation prevention effect of the stepped portion 20, the fan guard 9 directed downward in the figure is blown from the center portion. It is bent to the upstream side of the path 5, and its tip is bent again so that the step is separated from the fan guard 9.
The fan guard 9 is preferably installed on the side of the air outlet 1 of the air outlet 5 in order to ensure safety and the stepped portion 20 eliminates the entrainment of indoor air and prevents condensation. By mounting and forming the fan guard 9 on the inside, the room air can be prevented from being caught and the safety can be ensured without affecting the flow of the room air at the stepped portion.
[0012]
The method of folding the flat plate-shaped fan guard 9 attached to the air passage wall 2 to the upstream side of the blowing air passage 5 in order to prevent the fan guard 9 from approaching the stepped portion 20 is not limited to the above. You may bend only the front-end | tip part on the opposite side to an attaching part, and the place and the frequency | count of bending are not ask | required. In short, it is only necessary to attach the fan guard 9 so as not to impair the effect of preventing the room air from being caught in the stepped portion and preventing the condensation and to ensure safety.
In the present embodiment, the wind direction louver 8 and the upper and lower vanes 6 are disposed upstream and downstream of the fan guard 9, but the present invention is not limited to this. The anti-condensation effect and the safety ensuring effect can be obtained in the same manner with or without either one as required.
[0013]
In the blowout air path 5 of the indoor unit, two wind direction change devices (first wind direction change device, first wind direction change device, By installing the second wind direction changing device (whichever may be the first wind direction changing device or the second wind direction changing device), it is possible to adjust the blowing direction in addition to the above two effects.
Further, the fan guard 9 may be provided with a wind direction changing function as well as a safety function without independently providing a wind direction changing device. In this case, a plurality of direction changing functions such as a vertical direction and a horizontal direction may be provided, or a specific changing function may be provided, and a wind direction changing device may be provided independently in the blowing air path 5.
[0014]
Embodiment 2. FIG.
FIG. 3 is a cross-sectional view of a main part showing a blowout air passage of the indoor unit of the wall-mounted air conditioner.
In the present embodiment, the shape of the fan guard 9 and the attachment to the air passage wall 2 are different from those of the first embodiment, and the other points are the same.
In the present embodiment, the fan guard 9 is divided into two parts, the upper part and the lower part, and the part 9b of the fan guard that is closer to the stepped part 20 is separated from the other fan guard 9a. It is attached upstream and separated from the stepped portion 20. In this way, the fan guard 9a is provided as close to the outlet 1 as possible to ensure safety, and the fan guard 9b is installed as far as it does not impair the condensation prevention effect of the stepped portion 20, It is possible to prevent condensation and ensure safety.
[0015]
In the present embodiment, when the first wind direction changing device and the second wind direction changing device are installed, the fan guard 9b, the first wind direction changing device or the second wind direction changing device, and the fan guard 9a from the upstream side of the blowing air path 5 are provided. The second wind direction changing device or the first wind direction changing device is installed in the order of implementation. However, the first wind direction changing device and the second wind direction changing device may not be installed, or only one of them may be installed on either side.
Further, the fan guards 9a and 9b may be provided with a bottom function without providing an independent wind direction changing device.
[0016]
【The invention's effect】
The indoor unit of the air conditioner according to claim 1 of the present invention is a blower that is formed in a slanting downward direction by an air passage wall after sucking indoor air from a suction port by a blower and exchanging heat by an indoor heat exchanger. In an indoor unit of an air conditioner in which a step portion for preventing condensation is formed at the tip of the air outlet wall on the air outlet side of the air passage wall. Because the fan guard is attached and the part of the fan guard that approaches the stepped part is arranged so as to be separated from the stepped part to the upstream side of the blowout air passage, without eliminating the condensation prevention effect near the blowout port by the stepped part, It becomes possible to attach a fan guard for ensuring safety, and it is possible to achieve both the effect of preventing condensation and the effect of ensuring safety.
[0017]
Further, the indoor unit of the air conditioner according to claim 2 is easily prevented from dew condensation because the portion close to the stepped portion of the fan guard is separated from the stepped portion by bending the portion close to the stepped portion of the blower air duct in the first aspect. And ensuring safety.
[0018]
An indoor unit of an air conditioner according to a third aspect of the present invention is the air conditioner indoor unit according to the second aspect, wherein the second airflow direction changing device having a different airflow adjustment direction from the first airflow direction changing device and the first airflow direction changing device is installed in the blowout air passage. Since the first wind direction changing device, fan guard, and second wind direction changing device are arranged in this order from the upstream side of the blowing air passage, the effect of preventing condensation and ensuring safety can be obtained, and two kinds of blowing adjustments with different directions are possible It becomes.
[0019]
According to a fourth aspect of the present invention, there is provided an air conditioner indoor unit according to the first aspect, in which the fan guard is divided into two parts, and the divided part of the fan guard approaching the step part is attached to the air passage wall of the other divided part. Since it is separated from the stepped portion by being mounted on the upstream side of the portion, it is possible to easily prevent condensation and ensure safety.
[0020]
An indoor unit of an air conditioner according to a fifth aspect of the present invention is the air conditioner indoor unit according to the fourth aspect, wherein the second airflow direction changing device having a different airflow adjustment direction from the first airflow direction changing device and the first airflow direction changing device is installed in the blowout air passage. Since the fan guard divided portion, the first wind direction changing device, the other fan guard divided portion, and the second wind direction changing device, which are attached from the upstream side to the upstream side of the blowing air passage, are arranged in this order. A securing effect can be obtained, and two types of balloon adjustments with different directions can be performed.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention.
FIG. 2 is a cross-sectional view of a main part showing a blowout air passage of the indoor unit of the air conditioner according to Embodiment 1 of the present invention.
FIG. 3 is a cross-sectional view of a main part showing a blowout air passage of an indoor unit of an air conditioner according to Embodiment 2 of the present invention.
FIG. 4 is a cross-sectional view of a conventional air conditioner indoor unit.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outlet, 2 Air path wall, 3 Indoor heat exchanger, 4 Blower, 5 Outlet air path, 6 1st wind direction change apparatus (2nd wind direction change apparatus), 8 2nd wind direction change apparatus (1st wind direction change apparatus) , 9 Fan guard, 9a, 9b Split part of fan guard, 20 Stepped part.

Claims

The blower blows indoor air from the inlet, heat exchanges with the indoor heat exchanger, passes through a blowout air passage formed obliquely downward by the air passage wall, and blows out into the room from the blowout outlet. In an indoor unit of an air conditioner in which a step portion for preventing condensation is formed at the tip on the outlet side of the road wall,
A fan guard is attached to the air passage wall in the middle of the blowing air passage, and the portion of the fan guard that approaches the step portion is arranged so as to be separated from the step portion to the upstream side of the blowing air passage. An air conditioner indoor unit.

The indoor unit of an air conditioner according to claim 1, wherein a portion of the fan guard that approaches the stepped portion is separated from the stepped portion by bending the portion closer to the upstream side of the blowing air passage.

A first wind direction changing device and a second wind direction changing device having a different blowing adjustment direction from the first wind direction changing device are installed in the blowing air passage, and the first air direction changing device from the upstream side of the blowing air passage, The indoor unit for an air conditioner according to claim 2, wherein a fan guard and the second wind direction changing device are arranged in this order.

The fan guard is divided into two parts, and the divided part of the fan guard that is closer to the step part is attached to the upstream side of the attachment part of the air passage wall of the other divided part so as to be separated from the step part. The indoor unit for an air conditioner according to claim 1, wherein the indoor unit is configured as described above.

A fan guard installed in the blowout air passage from the upstream side of the blowout air passage to the upstream side by installing a first airflow direction change device and a second airflow direction change device having a different blowout adjustment direction from the first airflow direction change device. The indoor unit of an air conditioner according to claim 4, wherein the first air direction changing device, the first air direction changing device, the second fan guard dividing portion, and the second air direction changing device are arranged in this order.