JPH07305695A - Air conditioner - Google Patents

Air conditioner

Info

Publication number
JPH07305695A
JPH07305695A JP7089393A JP8939395A JPH07305695A JP H07305695 A JPH07305695 A JP H07305695A JP 7089393 A JP7089393 A JP 7089393A JP 8939395 A JP8939395 A JP 8939395A JP H07305695 A JPH07305695 A JP H07305695A
Authority
JP
Japan
Prior art keywords
impeller
center
scroll
air
center point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7089393A
Other languages
Japanese (ja)
Other versions
JP2642900B2 (en
Inventor
Shohei Nomura
昇平 野村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP7089393A priority Critical patent/JP2642900B2/en
Publication of JPH07305695A publication Critical patent/JPH07305695A/en
Application granted granted Critical
Publication of JP2642900B2 publication Critical patent/JP2642900B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

PURPOSE:To restrain the air quantity to be discharged from a cross flow blower from being lowered to be small by increasing the length of a wall surface of a tongue part facing an impeller by the specific amount, and making the speed of the vortex and that of the flow along the scroll of a casing approximately equal to each other. CONSTITUTION:An air conditioner is provided with a cross flow blower. The length dimension (h) of a wall surface 11 of a tongue part 10 is set to 10 to 35% of the outside diameter dimension D of an impeller 8. A line 50 passing the top of the tongue part 10 and a center point 14 of the impeller 8 is taken as an abscissa axis (x), and a line 13 intersecting the abscissa axis (x), and passing the center point 14 of the impeller 8 is taken as an ordinate axis (y). In this coordinate, a circle having the diameter of 0.15D is drawn by taking (0.1D-0.15D) as the center, and a circle having the diameter of 0.3D is drawn by taking (0.4D-0.1D) as the center, and scrolls 19, 20 in which center points 17, 18 are provided in the range 15 formed by linking both circles to each other are formed in a casing 9. Thereby, the vortex to be generated by the rotation of the impeller 8 is stabilized, and the air blowing amount can be restrained from being lowered to be small.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、羽根車を回転自在にケ
ーシングへ内装した送風機を備えた空気調和機に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a blower in which an impeller is rotatably mounted in a casing.

【0002】[0002]

【従来の技術】羽根車を回転自在にケーシングへ内装し
た横流送風機の構造例としては、実公昭58−2409
9号公報に示されたようなものが開示されている。
2. Description of the Related Art An example of the structure of a cross-flow blower in which an impeller is rotatably mounted in a casing is shown in Japanese Utility Model Publication No. 58-2409.
The one disclosed in Japanese Patent No. 9 is disclosed.

【0003】この内容によれば、羽根車の前方の下部に
この羽根車の舌部を有する案内部材を配設し、又、羽根
車と対向するケーシングの背壁を滑らかな渦巻状の曲面
形状としていた。
According to this content, the guide member having the tongue portion of the impeller is arranged in the lower front portion of the impeller, and the back wall of the casing facing the impeller is formed into a smooth spiral curved surface. I was trying.

【0004】そして羽根車を回転させることにより、舌
部付近に渦流を形成させ、この渦流によってケーシング
内の空気を吸込口から吐出口へ導くようにしていた。
By rotating the impeller, a vortex is formed near the tongue, and the vortex flows the air in the casing from the suction port to the discharge port.

【0005】[0005]

【発明が解決しようとする課題】このような横流送風機
において、案内部材は羽根車の下方の前部に位置されて
いるため、この案内部材とケーシングとで構成される送
風路の巾寸法が小さくなるおそれがあった。このように
送風路の巾寸法が小さくなると吐出風量が低下するおそ
れがあった。特に、このような送風機を空気調和機に備
えた場合、熱交換器などの抵抗となるものがあって、更
に吐出風量が低下するおそれがある。
In such a cross-flow fan, since the guide member is located in the lower front part of the impeller, the width of the air passage formed by the guide member and the casing is small. There was a risk of becoming. When the width of the air passage is reduced in this way, the amount of discharged air may decrease. In particular, when such an air blower is provided in an air conditioner, there is a risk of resistance of the heat exchanger and the like, which may further reduce the amount of discharged air.

【0006】本発明は、横流送風機から吐出される風量
の低下を小さく抑えるようにした空気調和機を提供す
る。
The present invention provides an air conditioner which suppresses a decrease in the amount of air discharged from a cross flow fan.

【0007】[0007]

【課題を解決するための手段】前記課題を解決するため
に、横流送風機を備えた空気調和機において、舌部の壁
面は羽根車の中心を通る線と略直交状態に配設させ、且
つこの壁面の長さ寸法hを羽根車の外径寸法Dの10%
〜35%に設定すると共に、この舌部の頂点と羽根車の
中心点とを通る線を横軸とし、この横軸と直交し前記羽
根車の中心点を通る線を縦軸とした座標において、
(0.1D,−0.15D)を中心として直径0.15
Dの円を、(−0.4D,−0.1D)を中心として直
径0.3Dの円を描き、この両円を端部としてつないだ
領域内に中心点を設けたスクロールをケーシングに形成
したものである。
In order to solve the above-mentioned problems, in an air conditioner equipped with a cross flow fan, the wall surface of the tongue is arranged substantially orthogonal to the line passing through the center of the impeller, and The length h of the wall surface is 10% of the outer diameter D of the impeller
In the coordinates, the horizontal axis is a line passing through the apex of the tongue and the center point of the impeller, and the vertical axis is a line orthogonal to the horizontal axis and passing through the central point of the impeller. ,
A diameter of 0.15 with (0.1D, -0.15D) as the center
Draw a circle D with a diameter of 0.3D around (-0.4D, -0.1D), and form a scroll in the casing with a center point in the area connecting both circles as ends. It was done.

【0008】[0008]

【作用】羽根車と対向する舌部の壁面の長さを大きくし
て、羽根車の回転によって生ずる渦流を安定したものと
し、この渦流と、ケーシングのスクロールに沿う流れと
が略同一の速さとなるようにしたものである。
The length of the wall surface of the tongue portion facing the impeller is increased to stabilize the vortex flow generated by the rotation of the impeller, and the vortex flow and the flow along the scroll of the casing have substantially the same speed. It was made to become.

【0009】[0009]

【実施例】図1は分離型空気調和機の室内ユニット1の
縦断面図で、2は本体、3はこの本体の前方から装着さ
れる前面グリルである。この前面グリル3には上部に吸
込口4が、下部に吐出口5が夫々設けられている。
1 is a vertical cross-sectional view of an indoor unit 1 of a separation type air conditioner, 2 is a main body, and 3 is a front grill mounted from the front of the main body. The front grill 3 is provided with a suction port 4 in the upper part and a discharge port 5 in the lower part.

【0010】本体2には熱交換器6と、この熱交換器6
に付着して滴下するドレン水を受けるドレンパン7と、
この熱交換器6内を流れる冷媒と室内空気とを熱交換さ
せるクロスフローファン(羽根車)8とが配設されてい
る。このクロスフローファン8の直径Dは90mmであ
る。本体2の背面は滑らかな曲線形状(後述する)とし
てクロスフローファン8のケーシング9を兼用してい
る。ドレンパン7の後部は舌部10を兼用しており、こ
の舌部10の壁はクロスフローファン8に対向する対向
壁11と出口壁12とから構成されている。
The main body 2 has a heat exchanger 6 and the heat exchanger 6
A drain pan 7 that receives the drain water that adheres to and drip
A cross flow fan (impeller) 8 for exchanging heat between the refrigerant flowing in the heat exchanger 6 and the room air is arranged. The diameter D of this cross flow fan 8 is 90 mm. The back surface of the main body 2 also serves as a casing 9 of the cross flow fan 8 having a smooth curved shape (described later). The rear portion of the drain pan 7 also serves as the tongue portion 10, and the wall of the tongue portion 10 is composed of a facing wall 11 facing the cross flow fan 8 and an outlet wall 12.

【0011】このケーシング9とクロスフローファン8
の直径Dと舌部10との寸法関係は以下に述べるように
なっている。すなわち舌部10の対向壁11は、この対
向壁11の頂点とクロスフローファン8の中心点14と
を結んだx軸50と直交するよう配設されており、この
対向壁11の寸法hは22mmである。13はこのx軸と
直交し、クロスフローファンの中心点14とを通るy軸
である。15はケーシングのスクロール部16の中心点
17、18が位置する領域で、この領域15は次のよう
にして決められたものである。すなわちx軸50とy軸
13とを座標軸とし、A点(9mm,−13.5mm)を中
心にして直径13.5mmの円を描き、B点(−36mm,
−13.5mm)を中心にして直径27mmの円を描き、こ
の両円上下部同志を直線でつないだ部分である。19は
第1スクロールで中心点17を中心として半径52mmの
円弧の一部である。20は第2スクロールで、この第1
スクロール19とつながれており、中心点18を中心と
して半径72mmの円弧の一部である。21は直線部で第
2スクロール20とつながっている。又、22は第1ス
クロール19の接線23とクロスフローファン8の接線
24とのなす角(拡大角)で、17゜に設定されてい
る。
The casing 9 and the cross flow fan 8
The dimensional relationship between the diameter D and the tongue portion 10 is as described below. That is, the facing wall 11 of the tongue portion 10 is arranged so as to be orthogonal to the x-axis 50 that connects the apex of the facing wall 11 and the center point 14 of the cross flow fan 8, and the dimension h of the facing wall 11 is It is 22 mm. Reference numeral 13 is a y-axis that is orthogonal to the x-axis and passes through the center point 14 of the cross flow fan. Reference numeral 15 is a region where the center points 17 and 18 of the scroll portion 16 of the casing are located, and this region 15 is determined as follows. That is, with the x-axis 50 and the y-axis 13 as coordinate axes, a circle with a diameter of 13.5 mm is drawn around the point A (9 mm, -13.5 mm) and the point B (-36 mm,
A circle with a diameter of 27 mm is drawn around the center (-13.5 mm), and the upper and lower parts of both circles are connected by a straight line. The first scroll 19 is a part of an arc having a radius of 52 mm with the center point 17 as the center. 20 is the second scroll, this first
It is connected to the scroll 19 and is a part of an arc having a radius of 72 mm with the center point 18 as the center. Reference numeral 21 is a straight line portion that is connected to the second scroll 20. Reference numeral 22 denotes an angle (enlargement angle) formed by the tangent line 23 of the first scroll 19 and the tangent line 24 of the cross flow fan 8, which is set to 17 °.

【0012】このような寸法関係に配置した横流送風機
において、クロスフローファン8を回転させると、吸込
口4より吸込まれた空気は、熱交換器6で熱交換作用を
受け、その後図2の実線矢印のように流れる。すなわ
ち、舌部10の対向壁11の斜め上方に渦流25ができ
る。そして、第1スクロール19、第2スクロール20
に沿って流れる空気26は、渦流25の中心と略同心円
状に広がっている。このようにスクロールに沿って流れ
た空気は直線部21と出口壁12とで吐出口5へ案内さ
れる。図3は、この横流送風機の実験結果を示すもの
で、横軸に周波数、縦軸に騒音値をとっている。この図
からいずれの周波数でも騒音は比較的低くほとんど気に
ならない程度となった。これはスクロール19、20に
沿って流れる空気26の速さの方が渦流25の速さより
も若干低いか、もしくは同じためであると考えられる。
尚、上記舌部10の対向壁11の寸法hは22mmである
が、この寸法hの範囲は羽根車8の直径Dの10%〜3
5%程度が良い。又、対向壁11とx軸50とのなす角
は90゜±10゜前後であれば、舌部10の対向壁11
の斜め上方に形成される渦流25は安定したものとな
る。更に、スクロール19、20の中心を上述した領域
15に設定した時、拡大角22は5゜〜25゜の範囲で
あればスクロール19、20のふくらみに沿って空気が
流れやすいと考えられる。
When the cross flow fan 8 is rotated in the cross flow fan arranged in such a dimensional relationship, the air sucked from the suction port 4 is subjected to the heat exchange action by the heat exchanger 6, and then the solid line in FIG. It flows like an arrow. That is, a vortex 25 is formed diagonally above the facing wall 11 of the tongue 10. Then, the first scroll 19 and the second scroll 20
The air 26 flowing along the air flows substantially concentrically with the center of the vortex 25. The air flowing along the scroll in this way is guided to the discharge port 5 by the straight portion 21 and the outlet wall 12. FIG. 3 shows the experimental results of this cross flow fan, in which the horizontal axis represents frequency and the vertical axis represents noise value. From this figure, the noise is relatively low at almost any frequency, and is almost unnoticeable. It is considered that this is because the speed of the air 26 flowing along the scrolls 19 and 20 is slightly lower than the speed of the vortex 25 or the same.
The dimension h of the opposing wall 11 of the tongue portion 10 is 22 mm, and the range of this dimension h is 10% to 3% of the diameter D of the impeller 8.
About 5% is good. If the angle between the facing wall 11 and the x-axis 50 is about 90 ° ± 10 °, the facing wall 11 of the tongue portion 10 will have an angle of 90 ° ± 10 °.
The eddy current 25 formed obliquely above is stable. Further, when the centers of the scrolls 19 and 20 are set to the above-mentioned region 15, it is considered that if the enlargement angle 22 is in the range of 5 ° to 25 °, air easily flows along the bulges of the scrolls 19 and 20.

【0013】図4は本発明の横流送風機の他の一実施例
を示し、第1スクロール27、第2スクロール28の中
心点29、30を領域15内に拡大角を6゜に夫々設定
したものである。そしてクロスフローファン8を回転さ
せることにより第5図に示すように空気が流れるものと
考えられ、この場合も、図2に示す風の流れと同様にス
クロール27、28に沿った流れ31が渦流32の中心
の同心円状に広がると考えられる。
FIG. 4 shows another embodiment of the cross flow fan of the present invention, in which the center points 29 and 30 of the first scroll 27 and the second scroll 28 are set within the area 15 and the enlargement angle is set to 6 °, respectively. Is. Then, it is considered that the air flows as shown in FIG. 5 by rotating the cross flow fan 8. In this case as well, the flow 31 along the scrolls 27 and 28 is swirled similarly to the wind flow shown in FIG. It is considered to spread in concentric circles at the center of 32.

【0014】次に、上述した領域15の外にスクロール
の円弧の中心を設定した5通りの横流送風機について述
べる。図6は、領域15の上方にスクロール33、34
の中心点35、36を設定し、拡大角を−1゜に定めた
もので、この場合は、スクロール33、34にふくらみ
がないため、スクロール付近の流れ37は速くなりこれ
にともなって、渦流38の速度も速くなると考えられる
(図7参照)。この結果、図8に示すように715Hz
で33.7dBの高周波音(ピーク音)が発生した。
Next, five types of cross-flow blowers in which the center of the arc of the scroll is set outside the above-mentioned area 15 will be described. FIG. 6 shows scrolls 33, 34 above the area 15.
The center points 35 and 36 of the are set and the enlargement angle is set to -1 °. In this case, since the scrolls 33 and 34 have no bulge, the flow 37 near the scroll becomes faster, and the vortex It is considered that the speed of 38 is also increased (see FIG. 7). As a result, as shown in FIG.
Then, a high frequency sound (peak sound) of 33.7 dB was generated.

【0015】図9も、図6と同様にスクロール39、4
0の中心点41、42を領域15の上方に設定し、拡大
角を5゜に定めたものを示しており、この場合もケーシ
ング39、40にふくらみがないので、ケーシング付近
の流れ43は図10に示すようになり、高周波音の発生
が予想される。
In FIG. 9, the scrolls 39 and 4 are also shown as in FIG.
The center points 41 and 42 of 0 are set above the area 15 and the enlargement angle is set to 5 °. In this case also, since the casings 39 and 40 have no bulge, the flow 43 near the casing is As shown in FIG. 10, high frequency sound is expected to be generated.

【0016】図11は領域15の下方にスクロール44
の中心点45を設定し、拡大角を30゜に定めたもの
で、この場合はスクロール44のふくらみが大きすぎ
て、第12図に示すよう、スクロール44付近の空気4
6の一部がこのスクロール44に沿わず渦47が発生
し、スクロール44付近の空気46の流速が落ちて、吐
出口5から吹き出される風量が低下する。又、図13に
示すように、732Hzで28.6dBの高周波音(ピ
ーク音)が発生した。
FIG. 11 shows a scroll 44 below the area 15.
The center point 45 of the scroll 44 is set and the enlargement angle is set to 30 °. In this case, the bulge of the scroll 44 is too large, and as shown in FIG.
A part of 6 does not follow the scroll 44, a vortex 47 is generated, the flow velocity of the air 46 near the scroll 44 decreases, and the amount of air blown from the discharge port 5 decreases. Further, as shown in FIG. 13, a high frequency sound (peak sound) of 28.6 dB was generated at 732 Hz.

【0017】図14、並びに図16も、領域15の下方
にスクロール48、49、52、53の中心点50、5
1、54、55を設定し、拡大角を夫々17゜、18゜
に定めたものを示したもので、いずれも図11のように
スクロールのふくらみが大きくスクロールの内側には渦
55、56が発生し(図15、図17参照)、吐出口5
から吹き出される風量の低下が予想される。
14 and 16, the center points 50, 5 of the scrolls 48, 49, 52, 53 below the area 15 are also shown.
1, 54 and 55 are set, and the enlargement angles are set to 17 ° and 18 °, respectively. In both cases, the bulge of the scroll is large and vortices 55 and 56 are formed inside the scroll as shown in FIG. Occurs (see FIGS. 15 and 17) and the discharge port 5
It is expected that the amount of air blown out of the room will decrease.

【0018】このように図6、図9、図11、図14、
図16に示されるよう領域15の外にスクロールの中心
点を設定すると、スクロールの形状が空気の流れに沿わ
ないものとなる。
As described above, FIG. 6, FIG. 9, FIG.
If the center point of the scroll is set outside the area 15 as shown in FIG. 16, the shape of the scroll does not follow the flow of air.

【0019】尚、下表は本発明の送風機(図1)と、実
験を行った送風機(図6、図11)の風量を示したもの
で、本発明の送風機の方が多くの風量が得られた。
The following table shows the air volumes of the blower of the present invention (FIG. 1) and the blower of the experiment (FIGS. 6 and 11). The blower of the present invention obtains a larger air volume. Was given.

【0020】[0020]

【表1】 [Table 1]

【0021】[0021]

【発明の効果】以上述べたように、本発明は羽根車と対
向する舌部の壁面の長さを大きくして、この羽根車の回
転によって生ずる渦流を安定したものにすることがで
き、送風量の低下を小さく抑えることができる。しか
も、羽根車のケーシングの形状を渦流の略同心円状とし
たので、この渦流の速さと、スクロールに沿う流れの速
さとが略同一となり吐出口から吐出される騒音を低く抑
えることができる。特に、空気調和機は熱交換器など送
風量を低下させる要因や騒音を増加させる要因があり騒
音が大きくなりがちであるものの、この発明によれば、
送付量の低下を抑えつつ、騒音を小さく抑えることがで
きる。
As described above, according to the present invention, the length of the wall surface of the tongue portion facing the impeller can be increased to stabilize the vortex flow generated by the rotation of the impeller. It is possible to suppress a decrease in air volume to a small level. Moreover, since the shape of the casing of the impeller is substantially concentric with the vortex, the speed of this vortex and the speed of the flow along the scroll are substantially the same, and the noise discharged from the discharge port can be suppressed to a low level. In particular, although the air conditioner has a factor that reduces the amount of air blown such as a heat exchanger and a factor that increases noise, the noise tends to be large, but according to the present invention,
It is possible to suppress the noise while suppressing the decrease in the delivery amount.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の横流送風機を用いた熱交換
ユニットの断面図である。
FIG. 1 is a cross-sectional view of a heat exchange unit using a cross flow fan according to an embodiment of the present invention.

【図2】同ユニット内の空気の流れを示す説明図であ
る。
FIG. 2 is an explanatory diagram showing a flow of air in the unit.

【図3】本発明の送風機を用いたときの騒音特性図であ
る。
FIG. 3 is a noise characteristic diagram when the blower of the present invention is used.

【図4】本発明の他の実施例の横流送風機を用いた熱交
換ユニットの断面図である。
FIG. 4 is a cross-sectional view of a heat exchange unit using a cross flow fan according to another embodiment of the present invention.

【図5】図4に示した送風機内の空気の流れを示す説明
図である。
5 is an explanatory diagram showing a flow of air in the blower shown in FIG.

【図6】本願発明で示した領域の外にスクロールの中心
点を設定した送風機の断面図である。
FIG. 6 is a cross-sectional view of a blower in which the center point of the scroll is set outside the area shown in the present invention.

【図7】図6に示した送風機内の空気の流れを示す説明
図である。
FIG. 7 is an explanatory diagram showing the flow of air in the blower shown in FIG.

【図8】図6に示した送風機を用いたときの騒音特性図
である。
FIG. 8 is a noise characteristic diagram when the blower shown in FIG. 6 is used.

【図9】本願発明で示した領域の外にスクロールの中心
点を設定した送風機の断面図である。
FIG. 9 is a cross-sectional view of a blower in which the center point of the scroll is set outside the area shown in the present invention.

【図10】図9に示した送風機内の空気の流れを示す説
明図である。
FIG. 10 is an explanatory diagram showing the flow of air in the blower shown in FIG. 9.

【図11】本願発明で示した領域の外にスクロールの中
心点を設定した送風機の断面図である。
FIG. 11 is a cross-sectional view of a blower in which the center point of the scroll is set outside the area shown in the present invention.

【図12】図11に示した送風機内の空気の流れを示す
説明図である。
FIG. 12 is an explanatory diagram showing a flow of air in the blower shown in FIG. 11.

【図13】図11に示した送風機を用いたときの騒音特
性図である。
13 is a noise characteristic diagram when the blower shown in FIG. 11 is used.

【図14】本願発明で示した領域の外にスクロールの中
心点を設定した送風機の断面図である。
FIG. 14 is a cross-sectional view of a blower in which the center point of the scroll is set outside the area shown in the present invention.

【図15】図14に示した送風機内の空気の流れを示す
説明図である。
FIG. 15 is an explanatory diagram showing the flow of air in the blower shown in FIG.

【図16】本願発明で示した領域の外にスクロールの中
心点を設定した送風機の断面図である。
FIG. 16 is a cross-sectional view of a blower in which the center point of the scroll is set outside the area shown in the present invention.

【図17】図16に示した送風機の空気の流れを示す説
明図である。
FIG. 17 is an explanatory diagram showing the air flow of the blower shown in FIG. 16.

【符号の説明】[Explanation of symbols]

6 熱交換器 7 案内部材 8 クロスフローファン 9 ケーシング 10 舌部 15 領域 17、18 中心点 19、20 スクロール 6 heat exchanger 7 guide member 8 cross flow fan 9 casing 10 tongue 15 region 17 and 18 center point 19 and 20 scroll

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 熱交換器及び羽根車をケーシングへ内装
して、この羽根車の前方にこの羽根車の舌部となる案内
部材を配設した横流送風機を備えた空気調和機におい
て、前記舌部の壁面は前記羽根車の中心を通る線と略直
交状態に配置されており、且つこの壁面の長さ寸法hは
前記羽根車の外径寸法Dの10%〜35%に設定されて
おり、この舌部の頂点と羽根車の中心点を通る線を横軸
としこの横軸と直交し前記羽根車の中心点を通る線を縦
軸とした座標において、(0.1D,−0.15D)を
中心として直径0.15Dの円を、(−0.4D,−
0.1D)を中心として直径0.3Dの円を描き、この
両円を端部としてつないだ領域内に中心点を設けたスク
ロールを前記ケーシングに形成したことを特徴とする空
気調和機。
1. An air conditioner equipped with a cross-flow fan in which a heat exchanger and an impeller are housed in a casing, and a guide member serving as a tongue portion of the impeller is disposed in front of the impeller. The wall surface of the portion is arranged substantially orthogonal to the line passing through the center of the impeller, and the length dimension h of the wall surface is set to 10% to 35% of the outer diameter dimension D of the impeller. , A line passing through the apex of the tongue and the center point of the impeller is taken as a horizontal axis, and a line passing through the center point of the impeller which is orthogonal to the horizontal axis is taken as a vertical axis, and (0.1D, −0. 15D) and a circle with a diameter of 0.15D as (-0.4D,-
An air conditioner is characterized in that a circle having a diameter of 0.3D) is drawn around 0.1D) as a center, and a scroll is provided in the casing in which a center point is provided in a region connecting both circles as ends.
JP7089393A 1995-04-14 1995-04-14 Air conditioner Expired - Lifetime JP2642900B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7089393A JP2642900B2 (en) 1995-04-14 1995-04-14 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7089393A JP2642900B2 (en) 1995-04-14 1995-04-14 Air conditioner

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP60270139A Division JPH0830477B2 (en) 1985-11-29 1985-11-29 Cross flow blower

Publications (2)

Publication Number Publication Date
JPH07305695A true JPH07305695A (en) 1995-11-21
JP2642900B2 JP2642900B2 (en) 1997-08-20

Family

ID=13969416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7089393A Expired - Lifetime JP2642900B2 (en) 1995-04-14 1995-04-14 Air conditioner

Country Status (1)

Country Link
JP (1) JP2642900B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1054396A (en) * 1996-06-06 1998-02-24 Carrier Corp Elliptic spiral wall of tangential fan
EP0928899A2 (en) 1998-01-12 1999-07-14 Mitsubishi Denki Kabushiki Kaisha Once-through blower
EP0930472A3 (en) * 1998-01-19 2002-09-18 Mitsubishi Denki Kabushiki Kaisha Cross flow fan
EP1243864A2 (en) * 2001-03-23 2002-09-25 Mitsubishi Heavy Industries, Ltd. Indoor unit and air-conditioner
WO2022195717A1 (en) * 2021-03-16 2022-09-22 三菱電機株式会社 Scroll casing, and air-blowing device and air-conditioning device provided with said scroll casing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62129599A (en) * 1985-11-29 1987-06-11 Sanyo Electric Co Ltd Cross flow fan

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62129599A (en) * 1985-11-29 1987-06-11 Sanyo Electric Co Ltd Cross flow fan

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1054396A (en) * 1996-06-06 1998-02-24 Carrier Corp Elliptic spiral wall of tangential fan
EP0928899A2 (en) 1998-01-12 1999-07-14 Mitsubishi Denki Kabushiki Kaisha Once-through blower
EP0928899A3 (en) * 1998-01-12 2000-05-03 Mitsubishi Denki Kabushiki Kaisha Once-through blower
EP0930472A3 (en) * 1998-01-19 2002-09-18 Mitsubishi Denki Kabushiki Kaisha Cross flow fan
EP1243864A2 (en) * 2001-03-23 2002-09-25 Mitsubishi Heavy Industries, Ltd. Indoor unit and air-conditioner
EP1243864A3 (en) * 2001-03-23 2003-01-02 Mitsubishi Heavy Industries, Ltd. Indoor unit and air-conditioner
WO2022195717A1 (en) * 2021-03-16 2022-09-22 三菱電機株式会社 Scroll casing, and air-blowing device and air-conditioning device provided with said scroll casing

Also Published As

Publication number Publication date
JP2642900B2 (en) 1997-08-20

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