JPH0593531A - Front grille for outdoor apparatus of air conditioner - Google Patents
Front grille for outdoor apparatus of air conditionerInfo
- Publication number
- JPH0593531A JPH0593531A JP25343491A JP25343491A JPH0593531A JP H0593531 A JPH0593531 A JP H0593531A JP 25343491 A JP25343491 A JP 25343491A JP 25343491 A JP25343491 A JP 25343491A JP H0593531 A JPH0593531 A JP H0593531A
- Authority
- JP
- Japan
- Prior art keywords
- airfoil
- impeller
- shape
- noise
- grille
- 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
Links
Landscapes
- Other Air-Conditioning Systems (AREA)
- Air-Flow Control Members (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は空気調和機の室外機、送
風ダクト等、保安上、送風ファンおよびダクトを囲まな
ければならない機器に利用されるグリルに関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grill used for an outdoor unit of an air conditioner, a blower duct, etc., which is required to surround the blower fan and the duct for safety reasons.
【0002】[0002]
【従来の技術】従来の吹出し口前面グリルを有する空気
調和機の室外機について、添付図面とともに説明する。2. Description of the Related Art An outdoor unit of an air conditioner having a conventional outlet front grille will be described with reference to the accompanying drawings.
【0003】図5に示すように熱交換器1と外装板2で
囲まれた空間に羽根車3とモータ4が収納されており、
羽根車3の周囲にオリフィス5が設けられている。羽根
車3の下流側に面する外装板2には吹出し口6が設けら
れ、その外側にはグリル7が取り付けられている。モー
タ4は図5に示すようなモータ支持台8によって、外装
板2に固定されている。As shown in FIG. 5, an impeller 3 and a motor 4 are housed in a space surrounded by a heat exchanger 1 and an exterior plate 2,
An orifice 5 is provided around the impeller 3. The exterior plate 2 facing the downstream side of the impeller 3 is provided with a blowout port 6, and a grill 7 is attached to the outside thereof. The motor 4 is fixed to the exterior plate 2 by a motor support base 8 as shown in FIG.
【0004】このような構造において、外部空気はモー
タ4に直結された羽根車3の回転により、熱交換器1の
側から空気を吸込み、吹出し口6を通してグリル7から
外部へ吐出される。In such a structure, the external air is sucked from the heat exchanger 1 side by the rotation of the impeller 3 directly connected to the motor 4, and is discharged from the grill 7 through the outlet 6 to the outside.
【0005】従来、このグリル7は円形の断面形状を有
する針金および略矩形の断面形状を有する樹脂等で構成
され外装板2前面より適当な距離を隔てて平行な平面上
に格子状をなして配置されていた。Conventionally, the grill 7 is made of a wire having a circular cross section and a resin having a substantially rectangular cross section, and is formed in a lattice shape on a plane parallel to the front surface of the exterior plate 2 with an appropriate distance. It was arranged.
【0006】[0006]
【発明が解決しようとする課題】しかしながら前記のよ
うなグリル断面形状では羽根車3から吐出する流れと桟
との衝突による干渉音や流出するときに円形断面の途中
および矩形断面における前縁および後縁のエッジ部から
剥離するとともに、流れに対して大きな抵抗となって送
風性能が悪化するという課題を有していた。However, in the grille cross-sectional shape as described above, the interference sound due to the collision between the flow discharged from the impeller 3 and the crosspiece or the outflow is generated in the middle of the circular cross section and the front and rear edges of the rectangular cross section. There is a problem in that the air is separated from the edge portion of the edge and becomes a large resistance to the flow, so that the blowing performance is deteriorated.
【0007】本発明は上記従来例の課題を解決するもの
で、前述の干渉音および剥離音を極力おさえ室外機とし
ての騒音レベルを下げるとともに風量の低下を抑制する
ことを目的とするものである。The present invention is intended to solve the above-mentioned problems of the conventional example, and it is an object of the present invention to suppress the above-mentioned interference noise and peeling noise as much as possible, and to reduce the noise level as an outdoor unit and suppress the reduction of the air volume. .
【0008】[0008]
【課題を解決するための手段】前記課題を解決するため
に本発明は、前記グリル桟の羽根車軸方向に対する断面
形状を翼形形状としたものである。In order to solve the above-mentioned problems, the present invention is one in which the cross-sectional shape of the grille bar in the axial direction of the impeller is a wing shape.
【0009】前記課題を解決するために本発明は前記の
ごとく、翼の前縁部の丸みの略径R1と翼の最大厚さd
との比R1/dを0.2〜0.35にするものである。In order to solve the above-mentioned problems, the present invention, as described above, has an approximate radius R1 of the roundness of the leading edge of the blade and a maximum thickness d of the blade.
The ratio R1 / d is set to 0.2 to 0.35.
【0010】前記課題を解決するために本発明は前記の
ごとく、翼の後縁部の端面形状を平面または翼弦長の1
/2以上の略径を有する形状にするものである。In order to solve the above-mentioned problems, the present invention, as described above, sets the trailing edge of the blade to a flat surface or a chord length of 1
The shape has a substantially diameter of ½ or more.
【0011】[0011]
【作用】本発明は上記グリルの羽根車軸方向の断面形状
を翼形形状とすることにより、前記羽根車3から吐出さ
れる負荷羽根車形状によって定まる羽根車軸方向に対し
て角度を持った周知の旋回流に対しての衝突の影響を広
範囲の迎え角に対して小さくすることができ、干渉音と
しての騒音を抑え、同時に翼形表面の剥離領域を少なく
し剥離音を抑えることができる。According to the present invention, by making the cross-sectional shape of the above-mentioned grille in the axial direction of the impeller into a blade shape, a well-known angle having an angle with respect to the impeller axial direction determined by the shape of the load impeller discharged from the impeller 3 is known. The influence of collision on the swirling flow can be reduced over a wide range of attack angles, noise as interference noise can be suppressed, and at the same time, the separation region on the airfoil surface can be reduced to suppress separation noise.
【0012】また、本発明は前記のごとく、翼の前縁部
の丸みの略径R1と翼形の最大厚さdとの比R1/dを
0.2〜0.35にすることにとって、前縁剥離を防止
しながら、吹出し流との干渉音を抑えることができる。Further, according to the present invention, as described above, the ratio R1 / d between the radius R1 of the roundness of the leading edge of the blade and the maximum thickness d of the airfoil is set to 0.2 to 0.35. It is possible to suppress the interference sound with the blowing flow while preventing the leading edge separation.
【0013】さらにまた、本発明は前記のごとく、翼の
後縁部の端面形状を平面または翼弦長の1/2以上の略
径を有する形状にすることによって、翼後端から放出さ
れる渦による発生音を小さくすることができる。Further, according to the present invention, as described above, the end face of the trailing edge portion of the blade has a flat surface or a shape having a substantially diameter equal to or more than ½ of the chord length, so that the blade is discharged from the trailing edge of the blade. The sound generated by the vortex can be reduced.
【0014】[0014]
【実施例】以下本発明の実施例を図面とともに説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【0015】図1は前述した翼断面形状の水平桟列を有
するグリルを外装板前面に取り付けた図である。図2〜
4は各請求項に対応する水平桟列の断面形状の詳細図で
あり、8a〜cは前述の翼形断面水平桟、9a〜cはそ
の保持のための鉛直桟で、水平桟と直交し、格子状グリ
ルを形成する。FIG. 1 is a view in which the grill having the horizontal rails having the above-mentioned blade cross-sectional shape is attached to the front surface of the exterior plate. Figure 2
4 is a detailed view of a cross-sectional shape of a horizontal rail row corresponding to each claim, 8a to 8c are horizontal rails having the above-mentioned airfoil section, and 9a to 9c are vertical rails for holding the horizontal rails. Forming a grid grill.
【0016】[0016]
【発明の効果】本発明は上記説明から明らかなように、
前記グリルの羽根車軸方向の断面形状を翼形形状にする
ことにより、羽根車3から吐出される空気の流れとの干
渉音および剥離によって生ずる剥離音を従来の形状より
低く抑えることができる。As is apparent from the above description, the present invention has the following advantages.
By making the cross-sectional shape of the grille in the impeller axial direction a wing shape, it is possible to suppress the noise of interference with the flow of the air discharged from the impeller 3 and the noise of peeling caused by peeling to be lower than the conventional shape.
【0017】本発明は前記のごとく、翼の前縁部の丸み
の略径R1と翼形の最大厚さdとの比R1/dを0.2
〜0.35にすることにとって、前縁剥離を防止しつ
つ、吹出し流との干渉音を抑えることができる。According to the present invention, as described above, the ratio R1 / d between the radius R1 of the roundness of the leading edge of the blade and the maximum thickness d of the airfoil is 0.2.
By setting it to 0.35, it is possible to prevent the leading edge separation and suppress the interference sound with the blowing flow.
【0018】本発明は前記のごとく、翼の後縁部の端面
形状を平面または翼弦長の1/2以上の略径を有する形
状にすることによって、翼後端から放出される渦による
発生音を小さくすることができる。As described above, according to the present invention, the end surface of the trailing edge portion of the blade is formed into a plane or a shape having a diameter substantially equal to or more than 1/2 of the chord length, so that the generation by the vortex emitted from the trailing edge of the blade is generated. The sound can be reduced.
【0019】上記グリルを前記外装板2に取付けた状態
での騒音レベル、つまり室外機としての騒音レベルは、
従来のものより同一風量で低い値にすることができる。The noise level when the grill is attached to the exterior plate 2, that is, the noise level as an outdoor unit is
It is possible to lower the value with the same air volume as the conventional one.
【図1】本発明の一実施例における翼形断面形状吹出し
口前面グリルを取り付けた空気調和機室外機の断面図FIG. 1 is a cross-sectional view of an air conditioner outdoor unit to which an airfoil cross-sectional shape outlet front grill is attached according to an embodiment of the present invention.
【図2】請求項1対応の同グリル断面詳細図FIG. 2 is a detailed sectional view of the grill according to claim 1.
【図3】請求項2対応の同グリル断面詳細図FIG. 3 is a detailed sectional view of the grill according to claim 2.
【図4】請求項3対応の同グリル断面詳細図FIG. 4 is a detailed sectional view of the grill according to claim 3.
【図5】従来の円形断面形状吹出し口前面グリルを取り
付けた空気調和機室外機の断面図FIG. 5 is a cross-sectional view of an air conditioner outdoor unit to which a conventional circular cross-sectional shape outlet front grill is attached.
【図6】同グリル断面詳細図[Fig. 6] Detailed view of the cross section of the grill
1 熱交換器 2 外装板 3 羽根車 4 ファンモータ 5 オリフィス 6 吹出し口 7 グリル 8 翼形断面水平桟 9 鉛直保持桟 1 Heat Exchanger 2 Exterior Plate 3 Impeller 4 Fan Motor 5 Orifice 6 Blowout Port 7 Grill 8 Airfoil Cross Section Horizontal Bar 9 Vertical Holding Bar
Claims (3)
吐出する送風装置の吹出し口の後流側に設けられ、羽根
車の軸方向に対する桟の断面形状が翼形形状で節弦比t
/Lが概1〜4であることを特徴とした水平桟列で構成
される空気調和機の室外機用前面グリル。1. A cross section of a crosspiece of a crosspiece with respect to an axial direction of the impeller, which is provided on the downstream side of an outlet of an air blower that discharges air from the impeller to the outside through an outlet, has a chord ratio t.
/ L is approximately 1 to 4, which is a front grill for an outdoor unit of an air conditioner, which is composed of horizontal rails.
1と翼形の最大厚さdとの比R1/dを概0.2〜0.
35としたことを特徴とした水平桟列で構成される請求
項1記載の空気調和機の室外機用前面グリル。2. An approximate radius R of the roundness of the leading edge from the airfoil shape
1 and the maximum thickness d of the airfoil have a ratio R1 / d of approximately 0.2 to 0.
The front grille for an outdoor unit of an air conditioner according to claim 1, wherein the front grille is formed of a horizontal row.
面または翼弦長の1/2以上の略径を有する翼形断面の
水平桟列で構成される請求項2記載の空気調和機の室外
機用吹出し口前面グリル。3. The air conditioner according to claim 2, wherein the end face shape of the trailing edge portion of the airfoil shape is a plane or a horizontal row of airfoil cross sections having an approximate diameter of 1/2 or more of the chord length. Front grille for the outdoor unit of the machine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25343491A JP2953136B2 (en) | 1991-10-01 | 1991-10-01 | Front grill for outdoor unit of air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25343491A JP2953136B2 (en) | 1991-10-01 | 1991-10-01 | Front grill for outdoor unit of air conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0593531A true JPH0593531A (en) | 1993-04-16 |
JP2953136B2 JP2953136B2 (en) | 1999-09-27 |
Family
ID=17251349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25343491A Expired - Lifetime JP2953136B2 (en) | 1991-10-01 | 1991-10-01 | Front grill for outdoor unit of air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2953136B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998027390A1 (en) | 1996-12-16 | 1998-06-25 | Daikin Industries, Ltd. | Outdoor unit of air conditioner |
KR20050119492A (en) * | 2004-06-16 | 2005-12-21 | 기아자동차주식회사 | A vent nozzle blade in vehicle airconditioner |
JP2017205735A (en) * | 2016-05-20 | 2017-11-24 | 三菱日立パワーシステムズ株式会社 | Filter, intake duct, and gas turbine |
CN109281853A (en) * | 2018-11-26 | 2019-01-29 | 珠海格力电器股份有限公司 | Tower fan |
JP2019090345A (en) * | 2017-11-13 | 2019-06-13 | 三星電子株式会社Samsung Electronics Co.,Ltd. | Air blower and outdoor unit for air conditioner |
US11067301B2 (en) | 2017-11-13 | 2021-07-20 | Samsung Electronics Co., Ltd. | Blower and outdoor unit of air conditioner having the same |
-
1991
- 1991-10-01 JP JP25343491A patent/JP2953136B2/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998027390A1 (en) | 1996-12-16 | 1998-06-25 | Daikin Industries, Ltd. | Outdoor unit of air conditioner |
EP0884542A1 (en) * | 1996-12-16 | 1998-12-16 | Daikin Industries, Limited | Outdoor unit of air conditioner |
EP0884542A4 (en) * | 1996-12-16 | 2000-03-29 | Daikin Ind Ltd | Outdoor unit of air conditioner |
KR20050119492A (en) * | 2004-06-16 | 2005-12-21 | 기아자동차주식회사 | A vent nozzle blade in vehicle airconditioner |
JP2017205735A (en) * | 2016-05-20 | 2017-11-24 | 三菱日立パワーシステムズ株式会社 | Filter, intake duct, and gas turbine |
JP2019090345A (en) * | 2017-11-13 | 2019-06-13 | 三星電子株式会社Samsung Electronics Co.,Ltd. | Air blower and outdoor unit for air conditioner |
EP3695169A4 (en) * | 2017-11-13 | 2020-11-18 | Samsung Electronics Co., Ltd. | Blower and outdoor unit of air conditioner having the same |
US11067301B2 (en) | 2017-11-13 | 2021-07-20 | Samsung Electronics Co., Ltd. | Blower and outdoor unit of air conditioner having the same |
CN109281853A (en) * | 2018-11-26 | 2019-01-29 | 珠海格力电器股份有限公司 | Tower fan |
Also Published As
Publication number | Publication date |
---|---|
JP2953136B2 (en) | 1999-09-27 |
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