JP3044770B2 - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JP3044770B2 JP3044770B2 JP2263991A JP26399190A JP3044770B2 JP 3044770 B2 JP3044770 B2 JP 3044770B2 JP 2263991 A JP2263991 A JP 2263991A JP 26399190 A JP26399190 A JP 26399190A JP 3044770 B2 JP3044770 B2 JP 3044770B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- guider
- centrifugal impeller
- air conditioner
- air guider
- 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.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、複数個のブレードを配設した遠心羽根車
と、この遠心羽根車の外側に配設した熱交換器とを有す
る空気調和装置のエアガイダに関するものである。Description: BACKGROUND OF THE INVENTION The present invention relates to an air guider for an air conditioner having a centrifugal impeller provided with a plurality of blades and a heat exchanger provided outside the centrifugal impeller. It is about.
従来の技術 従来、遠心羽根車を有する空気調和装置は、第６図、
第７図に示すように、遠心羽根車の外側に、矩形、ある
いは円状に熱交換器が配設されており、少なくとも一方
向の吹出口から、前記熱交換器によって熱交換された空
気が室内へ吹出す構成をとっている。2. Description of the Related Art Conventionally, an air conditioner having a centrifugal impeller is shown in FIG.
As shown in FIG. 7, a heat exchanger is disposed outside the centrifugal impeller in a rectangular or circular shape, and air that has been heat-exchanged by the heat exchanger is discharged from at least one outlet. It is designed to blow out indoors.
第６図において、１は前面パネル、５は遠心羽根車、
６は遠心羽根車５を駆動するためのファンモータ、７は
熱交換器、４は吸気用穴の周囲先端部断面がＬ字状を成
形し、遠心羽根車５の空気の流れの上流側に設けられた
エアガイダである。In FIG. 6, 1 is a front panel, 5 is a centrifugal impeller,
6 is a fan motor for driving the centrifugal impeller 5, 7 is a heat exchanger, 4 is an L-shaped cross-section around the intake hole, and is an upstream side of the air flow of the centrifugal impeller 5. It is an air guider provided.
吸い込みグリル３より矢印Ａ方向で吸い込まれた室内
の空気は、エアガイダ４を通過し、ファンモータ６によ
り駆動された遠心羽根車５により加速、加圧され熱交換
器７により熱交換され吹出外壁８と熱交換器７との間の
吹出通路９を通過し、吹出口10から再び同室内に吹出さ
れる。The indoor air sucked from the suction grill 3 in the direction of arrow A passes through the air guider 4, is accelerated and pressurized by the centrifugal impeller 5 driven by the fan motor 6, heat-exchanged by the heat exchanger 7, and blows out the outer wall 8. Then, the air passes through the air outlet passage 9 between the heat exchanger 7 and the air outlet 10, and is again blown into the same room from the air outlet 10.
尚、側壁２の内側に配設してある吹出外壁８及び吹出
口10は、それぞれ露付きを防止するため、断熱材8a,10a
で覆われている。11は、熱交換時に生じたドレン水を貯
めておく水受け皿である。In addition, the blow-out outer wall 8 and the blow-out port 10 disposed inside the side wall 2 are respectively provided with heat insulating materials 8a, 10a in order to prevent dew.
Covered with. Reference numeral 11 denotes a water tray for storing drain water generated during heat exchange.
発明が解決しようとする課題 しかし、従来のエアガイダは、その加工技術及び安全
性の観点より第７図に示すように遠心羽根車との間隙l3
には制限があった。しかし風量特性、ファン効率、騒音
レベルの面から判断すると、最適の間隙は上記制限より
も小さな値をとらなければならない。またこのl3の値よ
り大きくとるとエアガイダと吹出し空気との接触部にお
いて逆流が生じる。従って、従来の羽根車のブレードの
吸込入口端面とエアガイダ吸気用穴の周囲先端部との間
隙l3としての上記制限を採用すると、空気調和機の送風
機として風量特性、及び騒音特性の劣化、ファン効率の
低減の大きな要因となっていた。Problems to be Solved by the Invention However, the conventional air guider has a gap l 3 from the centrifugal impeller as shown in FIG.
Had restrictions. However, judging from the aspects of air volume characteristics, fan efficiency, and noise level, the optimum gap must be smaller than the above limit. The reverse flow occurs in the contact portion between the air outlet and Eagaida take greater than the value of the l 3. Thus, when employing the above restrictions as the gap l 3 of the surrounding distal portion of the suction inlet end face and the holes for Eagaida intake blades of a conventional impeller, airflow characteristics as blower of an air conditioner, and the deterioration of noise characteristics, the fan This was a major factor in reducing efficiency.
課題を解決するための手段 上記課題を解決するために本発明は、中央に吸気用穴
を有し、吸気用穴の周囲先端部にリング状に凹部を形成
したエアガイダと、複数個のブレードを有する遠心羽根
車の、吸込入口側端面先端が前記凹部内に、ある間隙を
有しながら位置する前記遠心羽根車を有し、前記吸気用
穴より室内の空気を吸気し、前記遠心羽根車を駆動する
ためのファンモータにより、加速、加圧され、前記遠心
羽根車の外側に、遠心羽根車と所定の間隔を持って配設
された、単体もしくは複数の熱交換器を通過した空気を
室内に吹出す吹出口により構成したものである。Means for Solving the Problems In order to solve the above problems, the present invention has an air guider having a suction hole in the center, a ring-shaped concave portion formed at a peripheral end of the suction hole, and a plurality of blades. Of the centrifugal impeller having the suction inlet side end face tip in the recess, having the centrifugal impeller located with a certain gap, sucking room air from the intake hole, and removing the centrifugal impeller. The air is accelerated and pressurized by a fan motor for driving, and outside the centrifugal impeller, disposed at a predetermined interval from the centrifugal impeller, passes air passing through a single or a plurality of heat exchangers indoors. It is constituted by the outlet which blows out to the.
作用 この技術的手段による作用は次のようになる。このよ
うに構成することにより第１図、第２図において遠心羽
根車とエアガイダの間隙l1、l2が制限範囲内に確保され
エアガイダ吸気用穴の周囲先端部と遠心羽根車のブレー
ドの吸込入口端面の接触部において逆流が生じないため
円滑な送風作用が得られ、風量特性、騒音特性の優れた
空気調和装置を得ることが可能となる。Operation The operation of this technical means is as follows. With this configuration, the gaps l 1 and l 2 between the centrifugal impeller and the air guider in FIGS. 1 and 2 are ensured within a limited range, and the leading end of the air guider suction hole and the blade of the centrifugal impeller are sucked. Since a backflow does not occur at the contact portion of the inlet end face, a smooth air blowing action can be obtained, and an air conditioner with excellent air volume characteristics and noise characteristics can be obtained.
また、エアガイダの材質を多孔質部材で構成すること
により、ファンにより加圧された空気流れにともない発
生する音は、多孔質材を透過して吸込側に至る。その結
果、低騒音化が図れ、騒音特性の優れた空気調和装置を
得ることができる。In addition, since the air guider is made of a porous member, sound generated due to the flow of air pressurized by the fan passes through the porous material and reaches the suction side. As a result, low noise can be achieved, and an air conditioner having excellent noise characteristics can be obtained.
尚、送風性能に最も効果のあるエアガイダ外周近辺の
一部に、多孔質材を使用することで、コストを削減でき
る。The cost can be reduced by using a porous material for a part of the vicinity of the outer periphery of the air guider which is most effective for the blowing performance.
また、エアガイダと多孔質部材を一体成形するために
合成樹脂を用いることにより、成型性及び生産性を向上
させコストダウンを図ることができる。Further, by using a synthetic resin to integrally mold the air guider and the porous member, moldability and productivity can be improved and cost can be reduced.
実施例 以下、本発明の実施例を添付図面に基づいて説明す
る。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図において、１は前面パネル、５は遠心羽根車、
６は遠心羽根車５を駆動するためのファンモータ、７は
熱交換器、４は中央に吸気用穴を有し、吸気用穴の周囲
先端部のリング状の凹部4eを形成し、遠心羽根車５の空
気の流れの上流側に設けられたエアガイダである。In FIG. 1, 1 is a front panel, 5 is a centrifugal impeller,
Reference numeral 6 denotes a fan motor for driving the centrifugal impeller 5, reference numeral 7 denotes a heat exchanger, reference numeral 4 denotes an intake hole in the center, and a ring-shaped concave portion 4e formed at the tip of the periphery of the intake hole. This is an air guider provided on the upstream side of the air flow of the car 5.
エアガイダ４は遠心羽根車５のブレード5a吸入入口端
面先端5bが前記凹部内4eに配設されているので、遠心羽
根車が回転の際エアガイダに最も接近する位置4a、4bの
制限範囲の距離l1，l2になるため遠心羽根車５によって
吹出された空気は、エアガイダとの接触部での逆流Ｃが
少なくなる。このときの風量特性、および騒音特性を第
５図において、従来例の場合Ｎ−ｑ特性（１）、Ｎ−ｎ
特性（１）に対して本発明の場合Ｎ−ｑ特性（２）、Ｎ
−ｎ特性（２）に示すように送風効率が向上する。Since the air guider 4 has the blade 5a of the centrifugal impeller 5 and the tip 5b of the suction inlet end face disposed in the recess 4e, the distance l of the limit range of the positions 4a and 4b at which the centrifugal impeller comes closest to the air guider when rotating. 1, the air blown by the centrifugal impeller 5 to become a l 2, backflow C at the contact portion with the Eagaida decreases. FIG. 5 shows the air volume characteristic and the noise characteristic at this time. In the case of the conventional example, the Nq characteristic (1), Nn
In the case of the present invention, Nq characteristic (2), N
As shown in the -n characteristic (2), the blowing efficiency is improved.
他の実施例１ 第３図に示すように、エアガイダ全体4dの材質を多孔
質材の材料にすることにより第５図に示すように風量特
性、騒音特性は、従来例の場合Ｎ−ｑ特性（１）、Ｎ−
ｎ特性（１）に対して本発明の場合、Ｎ−ｑ特性
（３）、Ｎ−ｎ特性（３）に示すように送風効率が向上
する。また前記実施例のＮ−ｑ特性（２）、Ｎ−ｎ特性
（２）に対して、本発明の場合、Ｎ−ｎ特性（３）に示
すようにエアガイダの材質を変えることにより、騒音特
性が向上する。Other Embodiment 1 As shown in FIG. 3, by using a porous material as the material of the entire air guider 4d, as shown in FIG. (1), N-
In the case of the present invention with respect to the n characteristic (1), the air blowing efficiency is improved as shown in the Nq characteristic (3) and the Nn characteristic (3). Further, in the present invention, the noise characteristics are changed by changing the material of the air guider as shown in the Nn characteristic (3), in contrast to the Nq characteristic (2) and the Nn characteristic (2) in the embodiment. Is improved.
他の実施例２ 第４図に示すように、エアガイダ4cの外周近辺4dを多
孔質材の材料にすることにより第５図に示すように、風
量特性、および騒音特性は、従来例の場合Ｎ−ｑ特性
（１）、Ｎ−ｎ特性（１）に対して本発明の場合、Ｎ−
ｑ特性（４）、Ｎ−ｎ特性（４）に示すように送風効率
が向上する。また前記実施例１のＮ−ｑ特性（３）、Ｎ
−ｎ（３）特性に対して、本発明の場合Ｎ−ｑ特性
（４）,N−ｎ（４）特性に示すようにエアガイダの材質
を一部変えることにより、騒音特性はほとんど変わらず
風量特性は向上する。Other Embodiment 2 As shown in FIG. 4, by using a material of a porous material near the outer periphery 4d of the air guider 4c, as shown in FIG. In the case of the present invention, -q characteristic (1) and Nn characteristic (1)
As shown in the q characteristic (4) and the N-n characteristic (4), the blowing efficiency is improved. Further, the Nq characteristic (3), N
In contrast to the -n (3) characteristic, in the case of the present invention, by partially changing the material of the air guider as shown in the Nq characteristic (4) and the Nn (4) characteristic, the noise characteristic hardly changes and The characteristics are improved.
他の実施例３ 第４図に示すように、エアガイダ4cを樹脂材料、4dを
多孔質材の材料にすることにより、前記実施例２に対し
てコスト性、生産性も向上する。Third Embodiment As shown in FIG. 4, by using a resin material for the air guider 4c and a porous material for the air guider 4d, the cost and productivity are improved as compared with the second embodiment.
発明の効果 上記実施例により明らかなように本発明は、エアガイ
ダの吸気用穴の周囲先端部にリング状の凹部内に遠心羽
根車のブレードの吸込入口端面先端が配設されることに
より、遠心羽根車とエアガイダとの距離l1，l2を従来の
制限範囲内に確保したままで、エアガイダ吸込用穴の周
囲先端部と吹出し空気との接触部において生じていた、
逆流などのエネルギー損失要因を解消した。従って、同
回転数に対する風量が増加し、さらにその風量に対する
騒音レベルが減少した。また、従来の間隙の制限範囲内
であるので、安全性は確保されている。従って、従来の
空気調和機の送風機構造と比べて送風機効率は著しく向
上することができる。Effect of the Invention As is clear from the above embodiment, the present invention provides a centrifugal centrifugal impeller blade having a suction inlet end face tip disposed in a ring-shaped recess at a peripheral tip of an intake hole of an air guider. While the distances l 1 , l 2 between the impeller and the air guider were kept within the conventional limit range, they occurred at the contact portion between the peripheral tip of the air guider suction hole and the blown air.
Energy loss factors such as backflow have been eliminated. Therefore, the air volume for the same rotation speed increased, and the noise level for the air volume also decreased. In addition, the safety is ensured because it is within the limit range of the conventional gap. Therefore, the blower efficiency can be significantly improved as compared with the blower structure of the conventional air conditioner.
また、エアガイダ全部の材質を従来の金属系材料から
多孔質材料にすることで、ファンにより加圧された空気
流れにともない発生した音を多孔質材で吸い込み側に透
過するため、低騒音化を図ることができる。In addition, by changing the material of the air guider from a conventional metal-based material to a porous material, the sound generated by the flow of air pressurized by the fan is transmitted to the suction side by the porous material, reducing noise. Can be planned.
また、エアガイダの材質を全部多孔質材料から外周近
辺多孔質材料にすることで、同回転数に対する風量が増
加し、さらにその風量に対する騒音レベルはほとんど変
わらず、コストも安くできる。In addition, by changing the material of the air guider from a porous material to a porous material near the outer periphery, the air volume for the same rotation speed increases, and the noise level for the air volume hardly changes, and the cost can be reduced.
また、エアガイダの材質を金属系材料から樹脂系材料
にして、一部多孔質材料にすることで、エアガイダを一
体成形することができるため生産性が向上し、コストも
さらに安くできる。Further, by changing the material of the air guider from a metal-based material to a resin-based material and partially forming a porous material, the air guider can be integrally molded, so that the productivity is improved and the cost can be further reduced.
第１図は本発明の一実施例における吸い込みグリルをつ
けた状態の空気調和装置の断面側面図、第２図は同遠心
羽根車とエアガイダの要部断面図、第３図（ア），
（イ），第４図（ア），（イ）はそれぞれ本発明の他の
実施例のエアガイダの要部正面図と要部側面図、第５図
は従来例と本発明の実験結果を示した風量、騒音の特性
図、第６図は従来例の吸い込みグリルをつけた状態の空
気調和装置の断面側面図、第７図は従来例の遠心羽根車
とエアガイダの要部断面図である。 １……前面パネル、２……側壁、３……吸い込みグリ
ル、４……ベルマウス、５……遠心羽根車、5a……ブレ
ード、６……ファンモータ、７……熱交換器、８……吹
出外壁、９……吹出通路、10…吹出口、10a……断熱
材、11……水受け皿、12……壁、13……空間。FIG. 1 is a cross-sectional side view of an air conditioner with a suction grille according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of essential parts of the centrifugal impeller and an air guider, and FIGS.
4 (a), 4 (a) and 4 (a) are a front view and a side view of a main part of an air guider according to another embodiment of the present invention, and FIG. 5 shows experimental results of a conventional example and the present invention. FIG. 6 is a cross-sectional side view of a conventional air conditioner with a suction grille attached, and FIG. 7 is a cross-sectional view of essential parts of a conventional centrifugal impeller and air guider. DESCRIPTION OF SYMBOLS 1 ... Front panel, 2 ... Side wall, 3 ... Suction grill, 4 ... Bell mouth, 5 ... Centrifugal impeller, 5a ... Blade, 6 ... Fan motor, 7 ... Heat exchanger, 8 ... ... Outlet wall, 9 ... Outlet passage, 10 ... Outlet, 10a ... Insulation material, 11 ... Water tray, 12 ... Wall, 13 ... Space.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭61−141620（ＪＰ，Ｕ) 実開 昭61−160300（ＪＰ，Ｕ) 実開 昭56−94412（ＪＰ，Ｕ) 実開 昭61−116911（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F24F 1/00 306 F24F 1/00 321 F04D 29/44 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Real opening Sho 61-141620 (JP, U) Real opening Sho 61-160300 (JP, U) Real opening Sho 56-94412 (JP, U) Real opening Sho 61- 116911 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F24F 1/00 306 F24F 1/00 321 F04D 29/44
Claims (4)
端部にリング状の凹部を形成したエアガイダと、複数個
のブレードを有する遠心羽根車の、吸込入口側端面先端
が前記凹部内に、所定の間隙l1及びl2を有しながら位置
する前記遠心羽根車を有することによって、エアガイダ
と吹出し空気との接触部において逆流を生じさせないこ
とを特徴とし、前記吸気用穴より室内の空気を吸気し、
前記遠心羽根車を駆動するためのファンモータにより、
加速、加圧され、前記遠心羽根車の外側に、羽根車と所
定の間隔を持って配設された、単体もしくは複数の熱交
換器を通過した空気を室内に吹出す吹出口により構成さ
れた空気調和装置。1. An air guider having an intake hole in the center, a ring-shaped recess formed at a peripheral end of the intake hole, and a centrifugal impeller having a plurality of blades, wherein the end of the end face on the suction inlet side is formed of the air guider. By having the centrifugal impeller located in the recess while having the predetermined gaps l 1 and l 2 , it is characterized in that backflow does not occur at the contact portion between the air guider and the blown air. Inhale indoor air,
By a fan motor for driving the centrifugal impeller,
Accelerated, pressurized, formed outside the centrifugal impeller, arranged at a predetermined distance from the impeller, and configured by an outlet that blows air that has passed through a single or a plurality of heat exchangers into a room. Air conditioner.
より構成した請求項１記載の空気調和装置。2. The air conditioner according to claim 1, wherein the entire material of the air guider is made of a porous material.
質材の材料を使用した請求項１記載の空気調和装置。3. The air conditioner according to claim 1, wherein a material of a porous material is used near the outer periphery in the material of the air guider.
孔質材の材料を使用した請求項１記載の空気調和装置。4. The air conditioner according to claim 1, wherein a resin material is used for the air guider and a porous material is used around the outer periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2263991A JP3044770B2 (en) | 1990-10-01 | 1990-10-01 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2263991A JP3044770B2 (en) | 1990-10-01 | 1990-10-01 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04143525A JPH04143525A (en) | 1992-05-18 |
| JP3044770B2 true JP3044770B2 (en) | 2000-05-22 |
Family
ID=17397029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2263991A Expired - Fee Related JP3044770B2 (en) | 1990-10-01 | 1990-10-01 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3044770B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0777200A (en) * | 1993-09-07 | 1995-03-20 | Mitsubishi Heavy Ind Ltd | Blower |
| US7244099B2 (en) | 2003-05-01 | 2007-07-17 | Daikin Industries, Ltd. | Multi-vane centrifugal fan |
| CN101975193A (en) * | 2010-07-28 | 2011-02-16 | 苏州顶裕节能设备有限公司 | Fan shell reinforcing device |
-
1990
- 1990-10-01 JP JP2263991A patent/JP3044770B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04143525A (en) | 1992-05-18 |
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