JPH08247482A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH08247482A JPH08247482A JP7079728A JP7972895A JPH08247482A JP H08247482 A JPH08247482 A JP H08247482A JP 7079728 A JP7079728 A JP 7079728A JP 7972895 A JP7972895 A JP 7972895A JP H08247482 A JPH08247482 A JP H08247482A
- Authority
- JP
- Japan
- Prior art keywords
- air
- flow fan
- recesses
- drain pan
- nose face
- 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
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は横流ファンにより送風
を行う空気調和機の、特に吹出口を形成するノーズ面の
改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner which blows air by a cross flow fan, and more particularly to an improvement of a nose surface which forms an outlet.
【０００２】[0002]
【従来の技術】従来例として図５に示すように、横流フ
ァンを収納する空気調和機に於いて、横流ファンの回転
にともなって吹出口から送風されるが、吹出口を形成す
るノーズ面１３’に横流ファンから送風される風の一部
が衝突して再びファン内に吸い込まれることが多い。即
ちノーズ面１３’によって横流ファンに対して偏心した
風の渦流が生じ、この渦流は翼ピッチ音と呼ばれる騒音
の原因であり、ノーズ面１３’の形状及び横流ファンと
ノーズ面との間隙によって変化する。この間隙を小さく
すると送風効率は上がるが翼ピッチ音が大きくなり、間
隙を大きくすると翼ピッチ音は小さくなるが送風効率が
低下してしまう。この種の騒音を低減させるために従来
よりノーズ面１３’を長手方向に沿って一定間隔で凹凸
１４’させたり、送風方向にスリットを設けたりして種
々の工夫がなされてきたが充分なものではなかった。2. Description of the Related Art As shown in FIG. 5 as a conventional example, in an air conditioner that houses a cross-flow fan, air is blown from a blow-out port with the rotation of the cross-flow fan, but a nose surface 13 that forms the blow-out port. Often, a part of the wind blown from the cross flow fan collides with and is sucked into the fan again. That is, the nose surface 13 'causes an eddy of wind that is eccentric to the cross flow fan, and this vortex flow is a cause of noise called blade pitch noise, which changes depending on the shape of the nose surface 13' and the gap between the cross flow fan and the nose surface. To do. If this gap is made small, the air blowing efficiency will be increased, but the blade pitch noise will be large, and if this gap is made large, the blade pitch noise will be made small, but the air blowing efficiency will be lowered. In order to reduce this kind of noise, various measures have heretofore been made by making the nose surface 13 ′ uneven 14 ′ at regular intervals along the longitudinal direction or providing slits in the blowing direction, but this is sufficient. Was not.
【０００３】[0003]
【発明が解決しようとする課題】空気調和機に必要な熱
交換風量を充分確保すると共に、このようなノーズ面と
横流ファンの間隙から発生する騒音の低減をはかるもの
である。SUMMARY OF THE INVENTION It is an object of the present invention to secure a sufficient amount of heat exchange air flow for an air conditioner and to reduce noise generated from such a gap between a nose surface and a cross flow fan.
【０００４】[0004]
【問題点を解決するための手段】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、空気調和
機本体内の前面側に熱交換器を設け、この熱交換器の背
面側に対向して配設される横流ファンと、前記熱交換器
の下部に設けられるドレンパンと、このドレンパンに一
体に設けられ前記横流ファン吹出側に突出し背面板との
間に通風路を形成するノーズ面とから成り、このノーズ
面はドレンパンの長手方向に沿って複数の凹部が設けら
れ、この凹部には略円錐形状又は半球形状の突起を設け
たものである。The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the structure is such that a heat exchanger is provided on the front side in the main body of an air conditioner. A cross-flow fan arranged to face the back side, a drain pan provided in the lower portion of the heat exchanger, and an air passage formed integrally with the drain pan and protruding to the blow-out side of the cross-flow fan and a back plate. The nose surface is provided with a plurality of recesses along the longitudinal direction of the drain pan, and the recesses are provided with substantially conical or hemispherical projections.
【０００５】[0005]
【作用】横流ファン１０を回転駆動することにより前吸
込口４と上吸込口６より吸い込まれた空気はフィルタ８
を通過し熱交換器９に熱交換され通風路１２を介して吹
出口７より吹き出される。この時ノーズ面１３に沿って
必然的に渦流が形成されるが凹部１４に設けた突起１５
よってノーズ面１３に発生する渦流を砕いて小さな渦流
に分散させることによって騒音の低減がはかれるもので
ある。The air sucked through the front suction port 4 and the upper suction port 6 by rotating the cross-flow fan 10 is filtered by the filter 8
And is exchanged with the heat exchanger 9 and blown out from the outlet 7 through the ventilation passage 12. At this time, a vortex is inevitably formed along the nose surface 13, but the protrusion 15 provided in the recess 14
Therefore, noise is reduced by breaking up the vortex generated on the nose surface 13 and dispersing it into small vortices.
【０００６】[0006]
【実施例】この発明の一実施例を図１〜図４をもとに説
明すれば、１は前面パネル２と背面板３によって構成す
る空気調和機の室内ユニットで、前記前面パネル２の前
面中央には横長の前吸込口４を備え、この前吸込口４を
格子状のグリル５で覆うものであり、上面には上吸込口
６を設けられ、前記前吸込口４の下方には吹出口７が形
成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 4. Reference numeral 1 is an indoor unit of an air conditioner composed of a front panel 2 and a back plate 3, which is the front surface of the front panel 2. A horizontally elongated front suction port 4 is provided in the center, and the front suction port 4 is covered with a grill 5 having a lattice shape. An upper suction port 6 is provided on the upper surface, and a blower is provided below the front suction port 4. An outlet 7 is formed.
【０００７】前記室内ユニット１の内部には前面パネル
２側より順に樹脂の網から成るフィルタ８とフィンチュ
ーブ式の熱交換器９と室内ファンモータ（図示せず）に
よって駆動する横流ファン１０を設けている。前記熱交
換器９は略中央部より上下にくの字型に横流ファン１０
を囲むように折り曲げて設けられ、また前記フィルタ８
は上吸込口６と前吸込口４の内側をまとめて覆うように
湾曲して形成されている。Inside the indoor unit 1, a filter 8 made of a resin net, a fin-tube type heat exchanger 9 and a cross-flow fan 10 driven by an indoor fan motor (not shown) are provided in this order from the front panel 2 side. ing. The heat exchanger 9 has a cross-shaped fan 10 in a dogleg shape up and down from a substantially central portion.
Is provided so as to surround the
Is curved so as to cover the insides of the upper suction port 6 and the front suction port 4 together.
【０００８】１１は冷房運転時に前記熱交換器９の下部
に配置し熱交換器９より発生する結露水を受けるドレン
パンで、前記横流ファン１０吹出側に突出し背面板３と
の間に通風路１２を形成するノーズ面１３を備えてい
る。前記ノーズ面１３はドレンパン１１の長手方向に沿
って複数の凹部１４が設けられ、この凹部１４には略円
錐形状または半球形状の突起１５を設けている。A drain pan 11 is disposed below the heat exchanger 9 during cooling operation and receives condensed water generated by the heat exchanger 9. The drain pan 11 projects toward the blow-out side of the cross flow fan 10 and the ventilation passage 12 between the back plate 3 and the back plate 3. Is provided with a nose surface 13. The nose surface 13 is provided with a plurality of recesses 14 along the longitudinal direction of the drain pan 11, and the recesses 14 are provided with substantially conical or hemispherical projections 15.
【０００９】又ノーズ面１３と横流ファン１０とは所定
間隔の間隙１６が設けられ、ノーズ面１３によって横流
ファン１０に対して偏心した風の渦流が生じ、この渦流
は翼ピッチ音と呼ばれる騒音を発生するが、前記凹部１
４に設けた突起１５によってノーズ面１３に発生する渦
流を砕いて小さな渦流に分散させ騒音の低減がはかれる
ものである。又前記突起１５はドレンパン１１成形時に
一緒に成形する事で簡単に設けることができるものであ
る。Further, a gap 16 having a predetermined interval is provided between the nose surface 13 and the cross flow fan 10, and the nose surface 13 causes a vortex of wind that is eccentric to the cross flow fan 10, and this vortex produces noise called blade pitch noise. Occurrence occurs in the recess 1
The vortex generated on the nose surface 13 is crushed by the protrusions 15 provided on the No. 4 and dispersed into a small vortex to reduce noise. Further, the projection 15 can be easily provided by molding it together with the drain pan 11.
【００１０】１７は前記吹出口７に備えた上下風向板
で、ルーバーモータ（図示せず）によって回動され吹出
口７より吹き出される風の方向を上下に変えるものであ
る。１８は前記上下風向板１７の後方に備えた左右風向
板で、吹出口７より吹き出される風の左右方向を変える
ものであり、取付板１９によって前記背面板３の下端に
取付けられるものである。Reference numeral 17 denotes a vertical wind direction plate provided at the air outlet 7 for changing the direction of the air blown from the air outlet 7 up and down by being rotated by a louver motor (not shown). Reference numeral 18 denotes a left / right airflow direction plate provided behind the vertical airflow direction plate 17, which changes the left / right direction of the air blown from the air outlet 7, and is attached to the lower end of the back plate 3 by a mounting plate 19. .
【００１１】２０は前記室内ユニット１を壁面に据え付
けるための据付板で、木ネジや釘等により壁面に取付け
られ上端と中央稍下方の舌片２０ａ・２０ｂを前記背面
板３の背面に備えた穴３ａおよび突部３ｂに引っかけて
据え付けるものである。２１は室外ユニット（図示せ
ず）へ接続される冷媒配管である。Reference numeral 20 denotes a mounting plate for mounting the indoor unit 1 on a wall surface, which is attached to the wall surface with wood screws, nails or the like, and is provided with upper ends and tongues 20a, 20b on the lower side of the central baffle on the back surface of the back plate 3. It is installed by hooking on the hole 3a and the protrusion 3b. Reference numeral 21 is a refrigerant pipe connected to an outdoor unit (not shown).
【００１２】作動について説明すれば、横流ファン１０
を回転駆動することにより前吸込口４と上吸込口６より
吸い込まれた空気はフィルタ８を通過し熱交換器９に熱
交換され通風路１２を介して吹出口７より吹き出され
る。この時ノーズ面１３に沿って必然的に渦流が形成さ
れるが凹部１４に設けた突起１５よってノーズ面１３に
発生する渦流を砕いて小さな渦流に分散させることによ
って騒音の低減がはかれるものである。In operation, the cross flow fan 10 will be described.
The air sucked from the front suction port 4 and the upper suction port 6 by rotating is driven to pass through the filter 8, is heat-exchanged with the heat exchanger 9, and is blown out from the air outlet 7 through the ventilation passage 12. At this time, a vortex is inevitably formed along the nose surface 13, but the noise is reduced by breaking up the vortex generated on the nose surface 13 by the projection 15 provided in the recess 14 and dispersing it into a small vortex. .
【００１３】[0013]
【発明の効果】以上のようにこの発明によれば、空気調
和機本体内の前面側に熱交換器を設け、この熱交換器の
背面側に対向して配設される横流ファンと、前記熱交換
器の下部に設けられるドレンパンと、このドレンパンに
一体に設けられ前記横流ファン吹出側に突出し背面板と
の間に通風路を形成するノーズ面とから成り、このノー
ズ面はドレンパンの長手方向に沿って複数の凹部が設け
られ、この凹部には略円錐形状又は半球形状の突起を設
けたので、比較的簡単な構造によってノーズ面に発生す
る騒音の低減がはかれる空気調和機を提供できるもので
ある。As described above, according to the present invention, the heat exchanger is provided on the front side in the air conditioner main body, and the cross-flow fan is disposed so as to face the back side of the heat exchanger, and It is composed of a drain pan provided in the lower part of the heat exchanger, and a nose surface that is integrally provided with the drain pan and that projects toward the blow-off side of the cross flow fan and forms an air passage between the back plate and the nose surface, which is in the longitudinal direction of the drain pan. A plurality of concave portions are provided along the concave portion, and the concave portion is provided with a substantially conical or hemispherical projection, so that an air conditioner capable of reducing noise generated on the nose surface with a relatively simple structure can be provided. Is.
【図１】この発明一実施例の断面図。FIG. 1 is a sectional view of an embodiment of the present invention.
【図２】同要部の斜視図。FIG. 2 is a perspective view of the main part.
【図３】同要部の断面図。FIG. 3 is a sectional view of the main part.
【図４】他の実施例の断面図。FIG. 4 is a cross-sectional view of another embodiment.
【図５】従来例の斜視図。FIG. 5 is a perspective view of a conventional example.
９ 熱交換器 １０ 横流ファン １１ ドレンパン １２ 通風路 １３ ノーズ面 １４ 凹部 １５ 突起 9 Heat Exchanger 10 Cross-flow Fan 11 Drain Pan 12 Ventilation Path 13 Nose Surface 14 Recess 15 Protrusion
Claims (1)
を設け、この熱交換器９の背面側に対向して配設される
横流ファン１０と、前記熱交換器９の下部に設けられる
ドレンパン１１と、このドレンパン１１に一体に設けら
れ前記横流ファン１０吹出側に突出し背面板３との間に
通風路１２を形成するノーズ面１３とから成り、このノ
ーズ面１３はドレンパン１１の長手方向に沿って複数の
凹部１４が設けられ、この凹部１４には略円錐形状又は
半球形状の突起１５を設けた事を特徴とする空気調和
機。1. A heat exchanger 9 is provided on the front side in the main body of the air conditioner.
And a cross-flow fan 10 arranged to face the back side of the heat exchanger 9, a drain pan 11 provided in the lower part of the heat exchanger 9, and the cross-flow fan 10 provided integrally with the drain pan 11. It comprises a nose surface 13 which projects toward the outlet side and forms an air passage 12 with the rear plate 3. The nose surface 13 is provided with a plurality of recesses 14 along the longitudinal direction of the drain pan 11, and the recesses 14 are provided in the recesses 14. An air conditioner provided with a substantially conical or hemispherical projection 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07079728A JP3027797B2 (en) | 1995-03-09 | 1995-03-09 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07079728A JP3027797B2 (en) | 1995-03-09 | 1995-03-09 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08247482A true JPH08247482A (en) | 1996-09-27 |
| JP3027797B2 JP3027797B2 (en) | 2000-04-04 |
Family
ID=13698272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07079728A Expired - Fee Related JP3027797B2 (en) | 1995-03-09 | 1995-03-09 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3027797B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007057182A (en) * | 2005-08-26 | 2007-03-08 | Mitsubishi Electric Corp | Air conditioner |
| KR100958863B1 (en) * | 2003-12-11 | 2010-05-20 | 주식회사 대우일렉트로닉스 | Separation type air conditioner having air guide |
| JP2011185273A (en) * | 2011-04-04 | 2011-09-22 | Mitsubishi Electric Corp | Cross flow fan |
-
1995
- 1995-03-09 JP JP07079728A patent/JP3027797B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100958863B1 (en) * | 2003-12-11 | 2010-05-20 | 주식회사 대우일렉트로닉스 | Separation type air conditioner having air guide |
| JP2007057182A (en) * | 2005-08-26 | 2007-03-08 | Mitsubishi Electric Corp | Air conditioner |
| JP4553812B2 (en) * | 2005-08-26 | 2010-09-29 | 三菱電機株式会社 | Air conditioner |
| JP2011185273A (en) * | 2011-04-04 | 2011-09-22 | Mitsubishi Electric Corp | Cross flow fan |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3027797B2 (en) | 2000-04-04 |
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