JPS62218743A - Air-conditioning machine - Google Patents
Air-conditioning machineInfo
- Publication number
- JPS62218743A JPS62218743A JP61063682A JP6368286A JPS62218743A JP S62218743 A JPS62218743 A JP S62218743A JP 61063682 A JP61063682 A JP 61063682A JP 6368286 A JP6368286 A JP 6368286A JP S62218743 A JPS62218743 A JP S62218743A
- Authority
- JP
- Japan
- Prior art keywords
- stabilizer
- ventilation circuit
- ventilating circuit
- flow fan
- blow
- 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
- 238000004378 air conditioning Methods 0.000 title abstract 2
- 239000003381 stabilizer Substances 0.000 claims abstract description 22
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims description 32
- 239000010409 thin film Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、空気調和機に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to an air conditioner.
従来の技術
従来、この種の空気調和機においては、その通風回路は
、たとえば特開昭５８−１９６３３号公報に示されてい
るように、第２図のような構造になっていた。BACKGROUND OF THE INVENTION Conventionally, in this type of air conditioner, the ventilation circuit has a structure as shown in FIG. 2, as shown in, for example, Japanese Patent Application Laid-open No. 19633/1983.
以下、図面を参照しながら、上述した従来の空気調和機
の通風回路の一例について説明する。Hereinafter, an example of the ventilation circuit of the conventional air conditioner mentioned above will be explained with reference to the drawings.
第２図は、従来の空気調和機における通風回路を示すも
のである。FIG. 2 shows a ventilation circuit in a conventional air conditioner.
第２図において、１はセパレート型空気調和機の室内側
のクロスフローファンを示し、２は周知の冷凍サイクル
を構成する室内側の熱交換器を示す。３は室内側の通風
回路４の一部を形成するエアガイダであり、５はスタビ
ライザである。６は前記クロスフローファン１のブレー
ドを示す。In FIG. 2, reference numeral 1 indicates an indoor cross-flow fan of a separate air conditioner, and reference numeral 2 indicates an indoor heat exchanger constituting a well-known refrigeration cycle. 3 is an air guider forming a part of the ventilation circuit 4 on the indoor side, and 5 is a stabilizer. 6 indicates the blades of the cross flow fan 1.
発明が解決しようとする問題点
しかしながら上記のような従来の構成では、クロスフロ
ーファン１のファン効率を通風回路４形状の変更により
向上させると、クロスフローファン１の回転数ｎとブレ
ード６の枚数２より発生するｎｚ音、Ｚｎｚ音（笛音と
も呼ばれている）が大きくなり、騒音値が高くなるとと
もに、実聴感も耳ざわりなピー音が発生する。したがっ
て、ｎＺ音やＺｎｚ音をある程度におさえ込むため、あ
えてファン効率を下げて使用しなければならないという
問題点を有していた。Problems to be Solved by the Invention However, in the conventional configuration as described above, if the fan efficiency of the cross-flow fan 1 is improved by changing the shape of the ventilation circuit 4, the rotation speed n of the cross-flow fan 1 and the number of blades 6 will be reduced. 2, the nz sound and Znz sound (also called a whistling sound) generated become louder, the noise level becomes higher, and a beep sound that is unpleasant to the ears is generated. Therefore, in order to suppress the nZ sound and the Znz sound to a certain level, there was a problem in that the efficiency of the fan had to be lowered.
本発明はかかる問題点に鑑み、クロスフローファンより
発生するｎＺ、２ｎｚ音を減少させ、騒音値を低下させ
るとともに、ファン効率を向上させることにより、低騒
音で高効率の通風回路形状を得ることができるようにし
て、空気調和機の低騒音化および高性能化を図ることを
目的とする。In view of these problems, the present invention provides a low-noise, high-efficiency ventilation circuit shape by reducing the nZ and 2nz sounds generated by a cross-flow fan, lowering the noise value, and improving fan efficiency. The purpose is to reduce noise and improve performance of air conditioners.
問題点を解決するための手段
上記問題点を解決するために本発明の空気調和機は、ク
ロスフローファンとスタビライザとエアガイダとで通風
回路を構成するとともに、前記スタビライザとエアガイ
ダとにより形成される前記クロスフローファンよりも下
流側の吹出側通風回路において、前記スタビライザの上
流側部分に密閉空間を形成し、前記密閉空間と前記吹出
側通風回路をつなぐ孔を前記スタビライザの上流側部分
に設けて共鳴室を形成し、前記共鳴室と前記吹出側通風
回路を薄膜で隔てたものである。Means for Solving the Problems In order to solve the above problems, the air conditioner of the present invention includes a cross flow fan, a stabilizer, and an air guider to form a ventilation circuit, and a cross flow fan, a stabilizer, and an air guider to form a ventilation circuit. In the outlet side ventilation circuit downstream of the cross flow fan, a sealed space is formed in the upstream part of the stabilizer, and a hole connecting the sealed space and the outlet side ventilation circuit is provided in the upstream part of the stabilizer to achieve resonance. A chamber is formed, and the resonance chamber and the blow-off side ventilation circuit are separated by a thin film.
作用
本発明は」−記した構成によって、クロスフローファン
より発生するｚｎ音、２ｚｎ音を、スタビライザに設け
た薄膜を有する共鳴室により吸収減衰させることにより
、低騒音化を図るとともに、通風回路形状を最高効率形
状にすることができ。Effect of the present invention With the configuration described above, the zn sound and 2zn sound generated by the cross flow fan are absorbed and attenuated by a resonance chamber having a thin film provided in the stabilizer, thereby reducing noise and improving the ventilation circuit shape. It can be shaped into the most efficient shape.
低騒音でかつ高効率の通風回路形状を得ることができる
。A ventilation circuit shape with low noise and high efficiency can be obtained.
実施例
以下、本発明の一実施例の空気調和機について、図面を
参照しながら説明する。EXAMPLE Hereinafter, an air conditioner according to an example of the present invention will be described with reference to the drawings.
第１図において、７はセパレート型空気調和機の室内側
のクロスフローファンを示し、８は前記クロスフローフ
ァンのブレードである。９は周知の冷凍サイクルの一部
を構成する室内側の熱交換器を示す。１０はエアガイダ
であり、室内側の通風回路１１の一部を形成している。In FIG. 1, 7 indicates a cross-flow fan on the indoor side of a separate air conditioner, and 8 indicates a blade of the cross-flow fan. Reference numeral 9 indicates an indoor heat exchanger that constitutes a part of a well-known refrigeration cycle. Reference numeral 10 denotes an air guider, which forms a part of the ventilation circuit 11 on the indoor side.
１２は前記通風回路１１の一部を形成しているスタビラ
イザであり、前記クロスフローファン７との最短距離部
分１２ａには、密閉空間１３が複数個形成されている。Reference numeral 12 denotes a stabilizer forming a part of the ventilation circuit 11, and a plurality of sealed spaces 13 are formed at the shortest distance portion 12a from the cross flow fan 7.
スタビライザ１２とエアガイダ１０とにより、前記クロ
スローフアン７よりも下流側の吹出側通風回路１１ａを
形成している。スタビライザ１２の上流側部分１２ｂに
は、密閉空間１３と吹出側通風回路１１ａとをつなぐ圧
力取入用の孔１４が開口されており、いわゆるヘルムホ
ルツ型共鳴室が複数形成されている。また密閉空間１３
は、薄膜１５により孔１４をふさがれ、吹出側通風回路
１１ａとは完全に分離されるとともに、気密構造を形成
している。また孔１４および密閉空間１３より形成され
る共鳴室の共振周波数は、クロスフローファン７の最大
風量時における回転数ｎ ｗａｘとブレード８の枚数２
より発生するｎ ｍａＸ Ｚ音の周波数に設定されてい
る。The stabilizer 12 and the air guider 10 form an outlet side ventilation circuit 11a downstream of the cross loaf fan 7. The upstream portion 12b of the stabilizer 12 is opened with a pressure intake hole 14 that connects the closed space 13 and the outlet side ventilation circuit 11a, and a plurality of so-called Helmholtz resonance chambers are formed. Also, closed space 13
The hole 14 is closed by a thin film 15, and the airtight structure is completely separated from the outlet side ventilation circuit 11a. Further, the resonance frequency of the resonance chamber formed by the hole 14 and the sealed space 13 is determined by the number of rotations n wax of the cross flow fan 7 at the maximum air volume and the number of blades 8 2
The frequency is set to the frequency of the n maX Z sound generated by.
以上のように本実施例によれば、クロスフローファン７
の最大風量時の回転数ｎｌ１ｌａｘとブレード８の枚数
２より発生するｎｍａ工２音を、ヘルムホルツ型共鳴室
により吸収減衰させることができるとともに、ｎ ｗａ
ｘ ｚ音の倍音である２ｎｍａｘＺ音の発生も減少させ
ることができる。また、通過風速が速いため、ヘルムホ
ルツ型共鳴室のままでは逆に共鳴し音を発生するが、圧
力取入用の孔１９を薄膜１５で密閉することにより、通
過風による共鳴音の発生をおさえ、ｎ １ｌＩａＸ Ｚ
音の吸収減衰作用のみを引き出すことができる。以上よ
り、ｎｚＺ音２ｎｚ音の発生をおさえながら通風回路１
０形状を最適形状にすることができ、低騒音でかつ高効
率の通風回路形状を得ることができ、空気調和機の低騒
音化および高性能化を図ることができる。As described above, according to this embodiment, the cross flow fan 7
The Helmholtz type resonance chamber can absorb and attenuate the nma sound generated by the rotational speed nl1lax and the number of blades 8 at the maximum air volume of nl1lax and the number of blades 8.
The generation of 2nmaxZ sound, which is an overtone of xz sound, can also be reduced. In addition, since the passing wind speed is high, if the Helmholtz type resonance chamber is used as it is, it will resonate and generate sound, but by sealing the pressure intake hole 19 with the thin film 15, the generation of resonance noise due to the passing wind is suppressed. , n 1lIaX Z
Only the sound absorption and attenuation effect can be brought out. From the above, the ventilation circuit 1 is
0 shape can be made into an optimal shape, a low-noise and highly efficient ventilation circuit shape can be obtained, and it is possible to achieve low-noise and high-performance air conditioners.
発明の効果
以上のように本発明は、クロスフローファンとスタビラ
イザとエアガイダとで通風回路を構成するとともに、前
記スタビライザとエアガイダとにより形成される前記ク
ロスフローファンよりも下流側の吹出側通風回路におい
て、前記スタビライザの上流側部分に密閉空間を形成し
、前記密閉空間と的記吹出側通風回路をつなぐ孔を前記
スタビライザの上流側部分に設けて共鳴室を形成し、前
記共鳴室とｉ「記吹出側通風回路を薄膜で隔てたもので
、クロスフローファンの回転数ｎとブレード枚数２によ
り発生するｎｚ音、Ｚｎｚ音を吸収減衰させ、ｎｚ音、
Ｚｎｚ音の発生をおさえながら通風回路形状を最適形状
にすることができ、低騒音でしかも高効率の通風回路を
有する空気調和機を得ることができる。Effects of the Invention As described above, the present invention configures a ventilation circuit with a crossflow fan, a stabilizer, and an air guider, and provides a ventilation circuit on the downstream side of the crossflow fan formed by the stabilizer and the air guider. , a sealed space is formed in the upstream part of the stabilizer, a hole is provided in the upstream part of the stabilizer to connect the sealed space and the target air outlet side ventilation circuit to form a resonance chamber, and the resonance chamber and the i" The blowout side ventilation circuit is separated by a thin film, and it absorbs and attenuates the nz sound generated by the cross flow fan's rotation speed n and the number of blades 2, and reduces the nz sound,
The shape of the ventilation circuit can be optimized while suppressing the generation of Znz noise, and an air conditioner having a low-noise and highly efficient ventilation circuit can be obtained.
第１図は本発明の一実施例にもとづく空気調和機の要部
断面図、第２図は従来の空気調和機の要部断面図である
。
７・・・クロスフローファン、１０・・・エアガイダ、
１１・・・通風回路、 ｌｌａ・・・吹出側通風回路、
１２・・・スタビライザ、１３・・・密閉空間、１４・
・・孔、１５・・・薄膜代理人 森 本 義
弘
７ ・、・ ７０人７０−ファン
１２ ・・・ スフし′ライ“リパ
／３・・１ｓｔ？Ｌ’ｊFIG. 1 is a sectional view of a main part of an air conditioner according to an embodiment of the present invention, and FIG. 2 is a sectional view of a main part of a conventional air conditioner. 7...Cross flow fan, 10...Air guider,
11... Ventilation circuit, lla... Outlet side ventilation circuit,
12... Stabilizer, 13... Closed space, 14.
...hole, 15...thin film agent Yoshi Morimoto
Hiro 7...70 people 70-fans 12...Sufushi'rai'Lipa/3...1st?L'j
Claims (1)
で通風回路を構成するとともに、前記スタビライザとエ
アガイダとにより形成される前記クロスフローファンよ
りも下流側の吹出側通風回路において、前記スタビライ
ザの上流側部分に密閉空間を形成し、前記密閉空間と前
記吹出側通風回路をつなぐ孔を前記スタビライザの上流
側部分に設けて共鳴室を形成し、前記共鳴室と前記吹出
側通風回路を薄膜で隔てたことを特徴とする空気調和機
。1. A cross-flow fan, a stabilizer, and an air guider constitute a ventilation circuit, and in an outlet-side ventilation circuit downstream of the cross-flow fan formed by the stabilizer and air guider, the upstream part of the stabilizer is sealed. A hole is provided in the upstream portion of the stabilizer to form a space and connect the closed space and the outlet side ventilation circuit to form a resonance chamber, and the resonance chamber and the outlet side ventilation circuit are separated by a thin film. air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61063682A JPS62218743A (en) | 1986-03-19 | 1986-03-19 | Air-conditioning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61063682A JPS62218743A (en) | 1986-03-19 | 1986-03-19 | Air-conditioning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62218743A true JPS62218743A (en) | 1987-09-26 |
| JPH0439567B2 JPH0439567B2 (en) | 1992-06-30 |
Family
ID=13236380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61063682A Granted JPS62218743A (en) | 1986-03-19 | 1986-03-19 | Air-conditioning machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62218743A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03233192A (en) * | 1990-02-08 | 1991-10-17 | Matsushita Electric Ind Co Ltd | Cross flow fan |
| FR2780347A1 (en) * | 1998-06-29 | 1999-12-31 | Valeo Climatisation | MOTOR VEHICLE HEATING AND / OR AIR CONDITIONING BOX WITH IMPROVED ACOUSTIC PERFORMANCE |
| KR100715337B1 (en) * | 2005-12-30 | 2007-05-08 | 위니아만도 주식회사 | Structure of blower for air-conditioner |
| CN103791603A (en) * | 2014-01-23 | 2014-05-14 | 乐金电子(天津)电器有限公司 | Air conditioner indoor unit and noise reduction method thereof |
| JP2017075708A (en) * | 2015-10-13 | 2017-04-20 | 三菱重工業株式会社 | Sound absorbing structure and air conditioner |
| EP3078917A4 (en) * | 2013-12-04 | 2018-01-24 | Gree Electric Appliances, Inc. of Zhuhai | Ceiling-mounted air-conditioner indoor-unit system |
-
1986
- 1986-03-19 JP JP61063682A patent/JPS62218743A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03233192A (en) * | 1990-02-08 | 1991-10-17 | Matsushita Electric Ind Co Ltd | Cross flow fan |
| FR2780347A1 (en) * | 1998-06-29 | 1999-12-31 | Valeo Climatisation | MOTOR VEHICLE HEATING AND / OR AIR CONDITIONING BOX WITH IMPROVED ACOUSTIC PERFORMANCE |
| EP0968857A1 (en) * | 1998-06-29 | 2000-01-05 | Valeo Climatisation | Vehicle heating and/or airconditioning housing with improved acoustic performances |
| KR100715337B1 (en) * | 2005-12-30 | 2007-05-08 | 위니아만도 주식회사 | Structure of blower for air-conditioner |
| EP3078917A4 (en) * | 2013-12-04 | 2018-01-24 | Gree Electric Appliances, Inc. of Zhuhai | Ceiling-mounted air-conditioner indoor-unit system |
| CN103791603A (en) * | 2014-01-23 | 2014-05-14 | 乐金电子(天津)电器有限公司 | Air conditioner indoor unit and noise reduction method thereof |
| JP2017075708A (en) * | 2015-10-13 | 2017-04-20 | 三菱重工業株式会社 | Sound absorbing structure and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0439567B2 (en) | 1992-06-30 |
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