JPH11108403A - Air cleaner - Google Patents
Air cleanerInfo
- Publication number
- JPH11108403A JPH11108403A JP9270794A JP27079497A JPH11108403A JP H11108403 A JPH11108403 A JP H11108403A JP 9270794 A JP9270794 A JP 9270794A JP 27079497 A JP27079497 A JP 27079497A JP H11108403 A JPH11108403 A JP H11108403A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- blade
- air
- plate
- turbo fan
- 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
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、半導体や液晶を製
造するクリーンルームの天井面に設置する空気清浄装置
並びに自立型クリーンブースおよびクリーンベンチ等で
送風機の効率向上と騒音低減を目的にターボファンを使
用する装置全般に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier installed on a ceiling surface of a clean room for producing semiconductors and liquid crystals, and a turbo fan for the purpose of improving the efficiency of a blower and reducing noise with a self-contained clean booth and a clean bench. It relates to the overall equipment used.
【０００２】[0002]
【従来の技術】従来は、ターボファンの羽根は図９に示
されるように一枚の平板を二次元平面上に湾曲させる形
状であった。2. Description of the Related Art Conventionally, the blades of a turbofan have a shape in which one flat plate is curved on a two-dimensional plane as shown in FIG.
【０００３】また、ターボファンのみで必要な静圧を得
るため羽根が多枚数ある羽根車を使用していた。Further, an impeller having a large number of blades has been used in order to obtain a required static pressure only with a turbo fan.
【０００４】[0004]
【発明が解決しようとする課題】従来は、ターボファン
の羽根は一枚の平板を二次元平面上に湾曲させる形状で
あったので、羽根前縁部が切放しとなり、風切り音で騒
音が高くなるとともに、損失が大きく高いファン効率を
得られなかった。Conventionally, the blades of a turbofan have a shape in which a single flat plate is curved on a two-dimensional plane, so that the blade front edges are cut off and noise is increased due to wind noise. At the same time, high fan efficiency could not be obtained due to large loss.
【０００５】また、風向板が設けられていないと、静圧
を回復できず、ターボファンのみで必要な静圧を得よう
とすると羽根が多枚数必要であった。このように羽根枚
数が多くなると羽根に沿う気流の流路損失が羽根枚数の
増加に従って増大するという問題があった。[0005] Further, if the wind direction plate is not provided, the static pressure cannot be recovered, and a large number of blades are required to obtain the required static pressure using only the turbo fan. As described above, when the number of blades increases, there is a problem that the flow path loss of the airflow along the blades increases as the number of blades increases.
【０００６】本発明の目的は、高効率でエネルギー消費
が少ない空気清浄装置を提供することにある。[0006] It is an object of the present invention to provide an air purifying apparatus with high efficiency and low energy consumption.
【０００７】[0007]
【課題を解決するための手段】本発明は上記課題を解決
するために、羽根車とこの羽根車を回転させるモータを
有するターボファンと、ターボファンの吸込口に空気を
供給するベルマウスと、このターボファンから吹き出さ
れた空気を清浄化するフィルタと、ターボファンから吹
き出された空気を加圧してフィルタに導く加圧室を内部
に有するハウジングとを備えた空気清浄装置において、
ターボファンはハウジング内に格納され、ハウジングは
モータを固定するとともに羽根車から吹き出された空気
をフィルタに供給するよう吹き出す開口部を有するモー
タベースと、羽根車に近接して配設された風向板とをそ
の内部に備え、羽根車は翼型形状羽根を有するとともに
羽根枚数が４枚以下であることを特徴とするものであ
る。According to the present invention, there is provided a turbofan having an impeller and a motor for rotating the impeller, a bell mouth for supplying air to a suction port of the turbofan, and In an air purifying apparatus including a filter for purifying air blown out from the turbofan and a housing having a pressurized chamber inside which pressurizes air blown out from the turbofan and guides the air to the filter,
The turbo fan is housed in the housing, the housing fixes the motor, and has a motor base having an opening that blows out the air blown from the impeller to the filter, and a wind direction plate disposed close to the impeller. Wherein the impeller has an airfoil-shaped blade and the number of blades is four or less.
【０００８】風向板はターボファンの静圧を回復し、フ
ィルタより下方に吹き出される空気量を増加させる。[0008] The wind direction plate restores the static pressure of the turbofan and increases the amount of air blown downward from the filter.
【０００９】羽根車は、１枚あるいは複数枚の板状部材
で成形された翼型羽根と、この翼型羽根を保持する芯板
および側板とを備え、翼型羽根を芯板及び側板の間に実
質的に密着させて固定している。The impeller includes an airfoil blade formed of one or a plurality of plate-like members, and a core plate and a side plate for holding the airfoil blade. The airfoil blade is disposed between the core plate and the side plate. Substantially adhered and fixed.
【００１０】複数枚の板状部材を接合して成形された翼
型羽根の場合は、複数枚の板状部材の接合部は羽根車の
回転方向に対して後ろ側でかつ翼型羽根の縁部から離れ
た位置に配置される。In the case of an airfoil blade formed by joining a plurality of plate members, the joint of the plurality of plate members is located on the rear side in the rotation direction of the impeller and at the edge of the blade blade. It is arranged at a position away from the part.
【００１１】翼型羽根を芯板及び側板の間に実質的に密
着させて固定することにより、羽根と芯板と側板の合せ
面に隙間が小さくなり、空気の漏れによる損失を低減す
ることができる。ターボファンの羽根形状、羽根枚数を
最適化し空気損失を低減し効率を向上させることができ
る。[0011] By fixing the airfoil blade substantially in close contact between the core plate and the side plate, a gap is reduced at the mating surface between the blade, the core plate and the side plate, and loss due to air leakage can be reduced. . The blade shape and the number of blades of the turbofan can be optimized to reduce air loss and improve efficiency.
【００１２】[0012]
【発明の実施の形態】本発明の実施の形態を図１〜図
８、図１０〜図１２により説明する。本実施の第１の実
施の形態を図１〜図５及び図１２により説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to FIGS. 1 to 8 and FIGS. A first embodiment of the present invention will be described with reference to FIGS. 1 to 5 and FIG.
【００１３】本実施例の空気清浄装置は図１及び図２に
示されるように、羽根車２とこの羽根車２を回転させる
モータ３を有するターボファン３０と、ターボファン３
０の吸込口に空気を供給するベルマウス６と、このター
ボファン３０から吹き出された空気を清浄化するフィル
タ５と、ターボファン３０から吹き出された空気を加圧
してフィルタ５に導く加圧室４０を内部に有するハウジ
ング１とを備えた空気清浄装置である。ターボファン３
０はハウジング１内に格納され、ハウジング１はモータ
３を固定するとともに羽根車２から吹き出された空気を
フィルタ５に供給するよう吹き出す開口部を有するモー
タベース４と、羽根車２に近接して配設された風向板７
とをその内部に備え、羽根車２は翼型形状羽根８を有す
るとともに流路抵抗を小さくするため羽根枚数が４枚以
下に設定される。本実施の形態では図３に示されるよう
に、羽根枚数は３枚である。As shown in FIGS. 1 and 2, the air purifying apparatus of this embodiment includes a turbo fan 30 having an impeller 2, a motor 3 for rotating the impeller 2, and a turbo fan 3.
0, a bell mouth 6 for supplying air to the suction port, a filter 5 for purifying the air blown from the turbo fan 30, and a pressurizing chamber for pressurizing the air blown from the turbo fan 30 and guiding the air to the filter 5. And a housing 1 having a housing 40 therein. Turbo fan 3
Reference numeral 0 is stored in the housing 1. The housing 1 fixes the motor 3, and has a motor base 4 having an opening that blows out the air blown out from the impeller 2 so as to supply the air to the filter 5. Wind direction plate 7 arranged
The impeller 2 has an airfoil-shaped blade 8 and the number of blades is set to four or less in order to reduce flow path resistance. In the present embodiment, as shown in FIG. 3, the number of blades is three.
【００１４】本実施の形態では図１、図２に示すように
風向板７はモータベース４に設けられ、平面方向はハウ
ジング１の側面１ｂから羽根車吹き出し口２ｃの近傍ま
での長さをもち、高さ方向はモータベース４から本体ハ
ウジング１の第２の面１ａの長さをもつ風向板７を備え
る。また、風向板７は、翼型羽根８に近接する側が曲線
形状の断面を有し、羽根車から吹き出された空気が鈍角
に加圧室内に流出し、ターボファン３０外周部の静圧を
回復させる。これによりフィルタ５より吹き出される空
気量を増加させることができる。In this embodiment, the wind direction plate 7 is provided on the motor base 4 as shown in FIGS. 1 and 2, and has a length in the plane direction from the side surface 1b of the housing 1 to the vicinity of the impeller outlet 2c. In the height direction, a wind direction plate 7 having a length from the motor base 4 to the second surface 1a of the main body housing 1 is provided. The wind direction plate 7 has a curved cross section on the side close to the airfoil blades 8, and the air blown out from the impeller flows into the pressurized chamber at an obtuse angle to recover the static pressure of the outer peripheral portion of the turbo fan 30. Let it. Thereby, the amount of air blown out from the filter 5 can be increased.
【００１５】図３に示すように、羽根車２は、翼型羽根
８と、この翼型羽根８を保持する芯板９および側板１０
とを有している。芯板９及び側板１０は翼型羽根８の先
端の外接円の径より大きい外径を有するよう形成され
る。風向板７の先端７ａは翼型羽根８の先端の外接円と
芯板９及び側板１０外形との間に位置するよう配設され
る。すなわち、風向板７の先端７ａは芯板９及び側板１
０の外周の縁より内側に入り込み、かつ、翼型羽根８の
先端に接触しない位置に設けられる。ターボファン３０
の組立の作業性を向上するためには、羽根車２の側板１
０外径は羽根８外径より大きく、芯板９外径は羽根８外
径とほぼ同一とすると、装置に羽根車２を組み込む際
に、風向板７の先端７ａが芯板９と接触しないため、モ
ータ３への羽根車２の装着が容易になる。As shown in FIG. 3, the impeller 2 includes an airfoil blade 8, a core plate 9 for holding the airfoil blade 8, and a side plate 10.
And The core plate 9 and the side plate 10 are formed so as to have an outer diameter larger than the diameter of a circumscribed circle at the tip of the airfoil blade 8. The tip 7a of the wind direction plate 7 is disposed so as to be located between the circumscribed circle of the tip of the airfoil blade 8 and the outer shape of the core plate 9 and the side plate 10. That is, the tip 7a of the wind direction plate 7 is the core plate 9 and the side plate 1
0, and is provided at a position that does not come into contact with the tip of the airfoil blade 8 inside the outer peripheral edge of the airfoil. Turbo fan 30
In order to improve the workability of assembling the side plate 1 of the impeller 2,
Assuming that the outer diameter of the blade 0 is larger than the outer diameter of the blade 8 and the outer diameter of the core plate 9 is substantially the same as the outer diameter of the blade 8, the tip 7a of the wind direction plate 7 does not contact the core plate 9 when the impeller 2 is installed in the apparatus. Therefore, mounting of the impeller 2 to the motor 3 becomes easy.
【００１６】翼型羽根８は芯板９及び側板１０の間に実
質的に密着するよう固定される。具体的な固定方法とし
ては、図３〜図５に示すように、翼型羽根８はかしめに
より芯板９及び側板１０に固定される。翼型羽根８には
かしめ固定のためのかしめ部１１が芯板９及び側板１０
に面する側に突出するよう設けられ、一方、芯板９及び
側板１０にはこのかしめ部１１が挿入されるよう穿設さ
れた羽根挿入部１８が設けられる。翼型羽根８と芯板９
及び側板１０との間の隙間が小さくなり、実質的に密着
する状態となるようかしめ部１１を羽根挿入部１８に挿
入し、かしめ部１１を折り曲げてかしめることにより翼
型羽根８と芯板９及び側板１０とが固定される。図４は
かしめ部１１がかしめられた状態の縦断面を示す。かし
め部１１は同図に示されるように翼型羽根８の内側に向
かって折曲げられ、これにより羽根挿入部１８の外側の
隙間が小さくなり、翼型羽根８と芯板９及び側板１０と
が実質的に密着してかしめ部からの空気の漏れが防止さ
れる。羽根挿入部１８は羽根形状にあわせて設けられ、
かしめ部１１は高圧側と低圧側の羽根に交互に設けられ
るとともにそれぞれ羽根内部に向けて折曲げられるの
で、羽根８と芯板９と側板１０の合せ面の隙間が小さく
なり、実質的に密着状態となって空気の漏れによる損失
を低減することができ、ターボファン３０の効率を向上
させることができる。The airfoil blade 8 is fixed between the core plate 9 and the side plate 10 so as to be substantially in close contact with each other. As a specific fixing method, as shown in FIGS. 3 to 5, the airfoil blade 8 is fixed to the core plate 9 and the side plate 10 by caulking. A caulking portion 11 for caulking and fixing is provided on the airfoil blade 8.
On the other hand, the core plate 9 and the side plate 10 are provided with a blade insertion portion 18 formed so as to insert the caulking portion 11. Airfoil blade 8 and core plate 9
The caulking portion 11 is inserted into the blade insertion portion 18 so that the gap between the airfoil blade 8 and the core plate is bent and caulked so that the gap between the caulking portion 11 and the side plate 10 becomes substantially small. 9 and the side plate 10 are fixed. FIG. 4 shows a longitudinal section in a state where the caulking portion 11 is caulked. The caulking portion 11 is bent toward the inside of the airfoil blade 8 as shown in the figure, whereby the gap outside the blade insertion portion 18 is reduced, and the airfoil blade 8 and the core plate 9 and the side plate 10 are connected to each other. Substantially adhere to each other to prevent air leakage from the caulked portion. The blade insertion part 18 is provided according to the blade shape,
Since the caulking portions 11 are alternately provided on the high-pressure side and the low-pressure side blades and are bent toward the inside of the blades, the gap between the mating surfaces of the blades 8, the core plate 9 and the side plate 10 is reduced, and substantially adhered. As a result, the loss due to air leakage can be reduced, and the efficiency of the turbofan 30 can be improved.
【００１７】図５に、翼型羽根８を一枚の板状部材から
成形した例を示す。板状部材を成形して翼型断面を有す
るとともに羽根高圧側１６、羽根低圧側１７にそれぞれ
曲面を有する翼型羽根８を形成する。羽根前縁部１３は
板状部材が曲面形状に形成されて空気の流入路を滑らか
にする効果を有し、これによりファン効率の向上、低騒
音化を図ることができる。一方、羽根後縁部１４は板状
部材の端部が鋭角状に接続されてスポット溶接等により
固定されている。羽根前縁部１３から羽根後縁部１４に
至る翼型羽根８の端部にはかしめ部１１が突出するよう
設けられる。図５ではかしめ部１１が既に折り曲げられ
た状態で図示されているが、翼型羽根８を芯板９および
側板１０の羽根挿入部１８に挿入する前は羽根高圧側１
６あるいは羽根低圧側１７に連なる面で端部から突出し
ている。FIG. 5 shows an example in which the airfoil blade 8 is formed from a single plate-like member. A plate-shaped member is formed to form an airfoil blade 8 having an airfoil cross-section and having curved surfaces on the blade high-pressure side 16 and the blade low-pressure side 17, respectively. The blade front edge portion 13 has a plate-like member formed into a curved surface shape and has an effect of smoothing an air inflow path, thereby improving fan efficiency and reducing noise. On the other hand, the blade trailing edge 14 is connected at an acute angle to the end of the plate-shaped member and is fixed by spot welding or the like. At the end of the airfoil blade 8 from the blade front edge 13 to the blade rear edge 14, a caulking portion 11 is provided so as to protrude. FIG. 5 shows the swaged portion 11 in a state where it has already been bent, but before inserting the airfoil blade 8 into the blade insertion portion 18 of the core plate 9 and the side plate 10, the blade high pressure side 1.
6 or a surface connected to the blade low pressure side 17 and protrudes from the end.
【００１８】本実施例の空気清浄装置はクリーンルーム
天井面に組まれた縦６００ｍｍ、横１２００ｍｍのシス
テム天井格子上に設置される。仕様の１例としては、モ
ータ３は定格出力２６Ｗの三相２００Ｖ５０Ｈｚ対応の
誘導電動機であり、ターボファン３０は羽根外径φ３４
０で３枚の翼型羽根８を有する羽根車２とこのモータ３
を組み合わせたものであり、フィルタ５としては定格風
量１８．５ｍ3/min時の定格圧力損失が１０．５ｍｍＡ
ｑ以下（平均９．５ｍｍＡｑ）の高性能フィルタであ
る。この組合せにお蹴る特性は図１２に示されるように
なり、吸込口周辺の機外静圧が２９．４Ｐａ（３ｍｍＡ
ｑ）の状態で、フィルタ５下流側のクリーンルーム内へ
平均風速０．３ｍ／秒、風量１３ｍ3／分の送風性能で
運転したときの消費電力は４０Ｗである。このとき騒音
は４３〜４２ｄＢである。仕様の裕度は、フィルタ圧損
のバラツキ、モータ、ファン等の部品精度のバラツキに
より、風量は約±１０％、消費電力は約±１０％を許容
範囲とする。The air purifying apparatus of this embodiment is installed on a system ceiling grid of 600 mm in length and 1200 mm in width assembled on the ceiling of a clean room. As one example of the specification, the motor 3 is a three-phase 200 V 50 Hz compatible induction motor having a rated output of 26 W, and the turbo fan 30 has a blade outer diameter φ34.
0 and an impeller 2 having three airfoil blades 8 and the motor 3
The filter 5 has a rated pressure loss of 10.5 mmA at a rated air volume of 18.5 m3 / min.
It is a high-performance filter of q or less (average 9.5 mmAq). The kick characteristic of this combination is as shown in FIG. 12, and the external static pressure around the suction port is 29.4 Pa (3 mmA).
In the state of q), the power consumption when operating the air in the clean room downstream of the filter 5 with an average air velocity of 0.3 m / sec and an air volume of 13 m 3 / min is 40 W. At this time, the noise is 43 to 42 dB. The tolerance of the specification is set to an allowable range of about ± 10% for air flow and about ± 10% for power consumption due to a variation in filter pressure loss and a variation in precision of components such as a motor and a fan.
【００１９】本発明の第２の実施の形態を図６、図７に
より説明する。A second embodiment of the present invention will be described with reference to FIGS.
【００２０】本実施の形態は、羽根車２を複数枚の板状
部材を接合して成形された翼型羽根８と、この翼型羽根
８を保持する芯板９および側板１０とにより構成したも
のである。他の構成は第１の実施の形態と同様である。
本実施の形態では翼型羽根８は２枚の板状部材を接合し
て成形される。２枚の板状部材の一方は羽根高圧側１６
になり、他方は羽根低圧側１７になる。２枚の板状部材
は組み合わされた状態で翼型断面を有するような形状に
成形され、組合せにより羽根高圧側１６、羽根低圧側１
７にそれぞれ曲面を有する翼型羽根８が形成される。羽
根高圧側１６には羽根前縁部１３が形成され、羽根前縁
部１３は板状部材が曲面形状に形成されて空気の流入路
を滑らかにする効果を有する。羽根低圧側１７は羽根高
圧側１６から羽根前縁部１３を除いたような形状に形成
される。２枚の板状部材はそれぞれ羽根低圧側１７、羽
根高圧側１６に成形された後に接合される。羽根高圧側
１６と羽根低圧側１７の接合部１５は羽根車２の回転方
向に対して後ろ側、すなわち回転時に低圧となる羽根低
圧側でかつ翼型羽根の前縁部１３から少なくとも翼型羽
根の最大厚さ以上離れた位置に配置される。接合部１５
は空気流が剥離しない程度のなめらかさを持ち、接合面
は羽根前縁部１３に対しては略平行で羽根後縁部１４に
対しては傾斜した状態に接合される。本実施の形態でも
第１の実施の形態と同様にファン効率の向上、低騒音化
を図ることができる。In this embodiment, the impeller 2 is composed of an airfoil blade 8 formed by joining a plurality of plate members, and a core plate 9 and a side plate 10 holding the airfoil blade 8. Things. Other configurations are the same as those of the first embodiment.
In the present embodiment, the airfoil blade 8 is formed by joining two plate-like members. One of the two plate members is the blade high pressure side 16.
And the other is the blade low pressure side 17. The two plate-like members are formed into a shape having an airfoil cross section in a combined state. Depending on the combination, the blade high pressure side 16 and the blade low pressure side 1 are formed.
An airfoil blade 8 having a curved surface is formed on each of the blades 7. A blade leading edge 13 is formed on the blade high-pressure side 16, and the blade leading edge 13 has a plate-like member formed into a curved surface shape, and has an effect of smoothing the air inflow path. The blade low pressure side 17 is formed in a shape such that the blade front edge 13 is removed from the blade high pressure side 16. The two plate-shaped members are joined to each other after being formed on the blade low pressure side 17 and the blade high pressure side 16, respectively. The joint 15 between the blade high-pressure side 16 and the blade low-pressure side 17 is located on the rear side with respect to the rotation direction of the impeller 2, that is, on the blade low-pressure side where the pressure becomes low during rotation and at least from the leading edge 13 of the blade-type blade. Are located at positions separated by more than the maximum thickness of Joint 15
Has a smoothness such that the air flow does not separate, and the joining surfaces are joined in a state substantially parallel to the leading edge 13 of the blade and inclined to the trailing edge 14 of the blade. Also in the present embodiment, it is possible to improve the fan efficiency and reduce noise as in the first embodiment.
【００２１】一方、羽根後縁部１４は羽根高圧側１６と
羽根低圧側１７の端部が鋭角状に接続されてスポット溶
接等により固定されている。羽根前縁部１３から羽根後
縁部１４に至る翼型羽根８の端部にはかしめ部１１が突
出するよう設けられる。図６、図７ではかしめ部１１が
既に折り曲げられた状態で図示されているが、翼型羽根
８を芯板９および側板１０の羽根挿入部１８に挿入する
前は羽根高圧側１６あるいは羽根低圧側１７に連なる面
で端部から突出している。On the other hand, the blade trailing edge 14 is connected at an acute angle to the ends of the blade high pressure side 16 and the blade low pressure side 17 and is fixed by spot welding or the like. At the end of the airfoil blade 8 from the blade front edge 13 to the blade rear edge 14, a caulking portion 11 is provided so as to protrude. 6 and 7, the caulked portion 11 is shown in a bent state, but before inserting the airfoil blade 8 into the core plate 9 and the blade insertion portion 18 of the side plate 10, the blade high pressure side 16 or the blade low pressure A surface that continues to the side 17 protrudes from the end.
【００２２】本実施の形態でも、羽根挿入部１８は羽根
形状にあわせて設けられ、かしめ部１１は高圧側と低圧
側の羽根に交互に設けられるとともにそれぞれ羽根内部
に向けて折曲げられるので、羽根８と芯板９と側板１０
の合せ面の隙間が小さくなり、実質的に密着状態となっ
て空気の漏れによる損失を低減することができ、ターボ
ファン３０の効率を向上させることができる。Also in the present embodiment, the blade insertion portion 18 is provided in accordance with the shape of the blade, and the caulking portions 11 are alternately provided on the high-pressure side and the low-pressure side blade, and each is bent toward the inside of the blade. Blade 8, core plate 9 and side plate 10
The gap between the mating surfaces becomes small, and the gap becomes substantially close to each other, so that the loss due to air leakage can be reduced, and the efficiency of the turbofan 30 can be improved.
【００２３】本発明の第３の実施の形態を図８により説
明する。本実施例は、羽根車２の芯板９と側板１０の補
強のために、芯板９の外周部に一体成形リング１９を設
けたものである。本実施の形態の羽根車２は、図８に示
されるように、翼型羽根８の側板側内径Ｄ1sと羽根外径
Ｄ2sの内外径比（Ｄ1s／Ｄ2s）が０．５９〜０．７６の
範囲に設定される。他の構成は第１の実施の形態又は第
２の実施の形態と同様である。A third embodiment of the present invention will be described with reference to FIG. In this embodiment, an integrally formed ring 19 is provided on the outer peripheral portion of the core plate 9 to reinforce the core plate 9 and the side plate 10 of the impeller 2. As shown in FIG. 8, the impeller 2 according to the present embodiment has an inner / outer diameter ratio (D1s / D2s) of the side plate inner diameter D1s and the blade outer diameter D2s of the airfoil blade 8 of 0.59 to 0.76. Set to range. Other configurations are the same as those of the first embodiment or the second embodiment.
【００２４】本発明の第４の実施の形態を図１０、図１
１により説明する。本実施の形態は風向板７の先端部７
ａの幅を他の部分より狭くして、先端部７ａを羽根８の
外接円の近傍まで挿入できるようにしたものである。図
１０は芯板９と側板１０の外形がいずれも羽根８の外接
円の径より大きいターボファンの場合であり、図１１は
側板１０の径が羽根８の外接円の径より大きく、芯板９
の径が羽根８の外接円の径とほぼ同一なターボファンの
場合である。他の部分は第１の実施の形態又は第２の実
施の形態と同様である。FIGS. 10 and 1 show a fourth embodiment of the present invention.
1 will be described. In this embodiment, the tip 7 of the wind direction plate 7 is used.
The width of “a” is narrower than the other parts, so that the tip 7 a can be inserted into the vicinity of the circumscribed circle of the blade 8. FIG. 10 shows the case of a turbo fan in which both the outer shape of the core plate 9 and the side plate 10 are larger than the diameter of the circumscribed circle of the blade 8. FIG. 11 shows the case where the diameter of the side plate 10 is larger than the diameter of the circumscribed circle of the blade 8. 9
Is a turbofan whose diameter is substantially the same as the diameter of the circumscribed circle of the blade 8. Other parts are the same as in the first embodiment or the second embodiment.
【００２５】[0025]
【発明の効果】本発明によれば、高効率でエネルギー消
費が少ない空気清浄装置を得ることができる。According to the present invention, it is possible to obtain an air purifying apparatus with high efficiency and low energy consumption.
【図１】本発明の第１の実施の形態における空気清浄装
置の構成を示す縦断面図である。FIG. 1 is a longitudinal sectional view illustrating a configuration of an air cleaning device according to a first embodiment of the present invention.
【図２】本発明の第１の実施の形態における空気清浄装
置の構成を示す平面図である。FIG. 2 is a plan view showing a configuration of the air cleaning device according to the first embodiment of the present invention.
【図３】本発明の第１の実施の形態における空気清浄装
置に用いられるターボファンの羽根車の構成を示す斜視
図である。FIG. 3 is a perspective view showing a configuration of an impeller of a turbo fan used in the air purifying apparatus according to the first embodiment of the present invention.
【図４】本発明の第１の実施の形態における空気清浄装
置のターボファンの翼型羽根のカシメ部を示す縦断面図
である。FIG. 4 is a longitudinal sectional view showing a swaged portion of an airfoil blade of the turbofan of the air purifying apparatus according to the first embodiment of the present invention.
【図５】本発明の第１の実施の形態における空気清浄装
置のターボファンの一枚板から成形した翼型羽根を示す
斜視図である。FIG. 5 is a perspective view showing an airfoil blade formed from one sheet of a turbo fan of the air purifying apparatus according to the first embodiment of the present invention.
【図６】本発明の第２の実施の形態における空気清浄装
置のターボファンの二枚板を接合して成形した翼型羽根
を示す斜視図である。FIG. 6 is a perspective view showing an airfoil blade formed by joining two plates of a turbofan of an air cleaning device according to a second embodiment of the present invention.
【図７】本発明の第２の実施の形態における空気清浄装
置のターボファンの二枚板を接合して成形した翼型羽根
を示す斜視図である。FIG. 7 is a perspective view illustrating an airfoil blade formed by joining two plates of a turbofan of an air cleaning device according to a second embodiment of the present invention.
【図８】本発明の第３の実施の形態における空気清浄装
置のターボファンの側板、芯板の外周に一体成形リング
をつけた構成を示す縦断面図である。FIG. 8 is a longitudinal sectional view showing a configuration in which an integrally formed ring is attached to the outer periphery of a side plate and a core plate of a turbofan of an air purifying apparatus according to a third embodiment of the present invention.
【図９】従来のターボファンに用いられた平板から成形
された羽根の形状を示す斜視図である。FIG. 9 is a perspective view showing the shape of a blade formed from a flat plate used in a conventional turbofan.
【図１０】本発明の第４の実施の形態における空気清浄
装置の羽根車と風向板の位置関係を示す要部縦断面図で
ある。FIG. 10 is a longitudinal sectional view of a main part showing a positional relationship between an impeller and a wind direction plate of an air cleaning device according to a fourth embodiment of the present invention.
【図１１】本発明の第１の実施の形態における空気清浄
装置の羽根車と風向板の位置関係を示す要部縦断面図で
ある。FIG. 11 is a vertical sectional view of a main part showing a positional relationship between an impeller and a wind direction plate of the air cleaning device according to the first embodiment of the present invention.
【図１２】本発明の第１の実施の形態における空気清浄
装置の風量−静圧（Ｑ−Ｈ）特性と風量−消費電力特
性、フィルタ圧損特性の１例を示した特性図である。FIG. 12 is a characteristic diagram showing an example of an air volume-static pressure (QH) characteristic, an air volume-power consumption characteristic, and a filter pressure loss characteristic of the air cleaning device according to the first embodiment of the present invention.
【符号の説明】 １…ハウジング，１ａ…第２の面，１ｂ…側面，２…羽
根車，２ａ…羽根車吹き出し口上面，２ｂ…羽根車吸込
口，２ｃ…羽根車吹き出し口，３…モータ，４，４ａ…
モータベース，５…フィルタ，６…ベルマウス，７…風
向板，７ａ…風向板曲面部，８…翼型羽根，９…芯板，
１０…側板，１１…かしめ部，１２…ボス部，１３…羽
根前縁部，１４…羽根後縁部，１５…羽根接合部，１６
…羽根高圧側，１７…羽根低圧側，１８…羽根挿入口，
１９…羽根外周リング部，２０…羽根側板側内径，２１
…羽根外径。DESCRIPTION OF SYMBOLS 1 ... housing, 1a ... second surface, 1b ... side surface, 2 ... impeller, 2a ... upper surface of impeller outlet, 2b ... impeller inlet, 2c ... impeller outlet, 3 ... motor , 4,4a ...
Motor base, 5 ... filter, 6 ... bellmouth, 7 ... wind direction board, 7a ... wind direction board curved surface part, 8 ... airfoil blade, 9 ... core plate,
DESCRIPTION OF SYMBOLS 10 ... side plate, 11 ... caulked part, 12 ... boss part, 13 ... blade front edge part, 14 ... blade rear edge part, 15 ... blade joint part, 16
... high pressure side of the blade, 17 ... low pressure side of the blade, 18 ... blade insertion port,
19 ... blade outer peripheral ring portion, 20 ... blade side plate side inner diameter, 21
... the outer diameter of the blade.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 横山 誠 新潟県北蒲原郡中条町大字富岡46番１株式 会社日立製作所産業機器事業部内 (72)発明者 高田 芳廣 茨城県土浦市神立町502番地株式会社日立 製作所機械研究所内 (72)発明者 本間 圭一 東京都足立区中川四丁目13番17号日立テク ノエンジニアリング株式会社内 (72)発明者 川崎 修 新潟県北蒲原郡中条町大字富岡46番１株式 会社日立製作所産業機器事業部内 (72)発明者 井上 昌義 新潟県北蒲原郡中条町大字富岡46番１株式 会社日立製作所産業機器事業部内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Makoto Yokoyama 46-1, Tomioka, Nakajo-cho, Kitakanbara-gun, Niigata Pref.Industrial Equipment Division, Hitachi, Ltd. Inside Hitachi Machinery Research Laboratory (72) Inventor Keiichi Honma 4-13-17 Nakagawa, Adachi-ku, Tokyo Inside Hitachi Techno Engineering Co., Ltd. (72) Inventor Osamu Kawasaki 46-1 Tomioka, Nakajocho, Kitakanbara-gun, Niigata Co., Ltd. Hitachi, Ltd. Industrial Equipment Division (72) Inventor Masayoshi Inoue 46-1, Tomioka, Daijo, Nakajo-cho, Kitakanbara-gun, Niigata Pref., Hitachi Industrial Equipment Division
Claims (7)
有するターボファンと、上記ターボファンの吸込口に空
気を供給するベルマウスと、このターボファンから吹き
出された空気を清浄化するフィルタと、上記ターボファ
ンから吹き出された空気を加圧して上記フィルタに導く
加圧室を内部に有するハウジングとを備えた空気清浄装
置において、上記ターボファンは上記ハウジング内に格
納され、上記ハウジングは上記モータを固定するととも
に上記羽根車から吹き出された空気を上記フィルタに供
給するよう吹き出す開口部を有するモータベースと、上
記羽根車に近接して配設された風向板とをその内部に備
え、上記羽根車は翼型形状羽根を有するとともに羽根枚
数が４枚以下であることを特徴とする空気清浄装置。A turbo fan having an impeller and a motor for rotating the impeller; a bell mouth for supplying air to an inlet of the turbo fan; and a filter for purifying air blown out from the turbo fan. A housing having therein a pressurized chamber for pressurizing air blown out from the turbo fan and guiding the air to the filter, wherein the turbo fan is stored in the housing, and the housing is A motor base having an opening that blows out the air blown from the impeller to supply the air to the filter, and a wind direction plate disposed close to the impeller. An air purifying apparatus, wherein the vehicle has an airfoil-shaped blade and the number of blades is four or less.
れた翼型羽根と、この翼型羽根を保持する芯板および側
板とを備え、上記翼型羽根を上記芯板及び上記側板の間
に実質的に密着させて固定したことを特徴とする請求項
１記載の空気清浄装置。2. The impeller includes an airfoil blade formed from a single plate-like member, a core plate and side plates for holding the airfoil blade, and the impeller is provided with the core plate and the side plate. 2. The air purifying apparatus according to claim 1, wherein the air purifying apparatus is fixed substantially in close contact between the side plates.
成形された翼型羽根と、この翼型羽根を保持する芯板お
よび側板とを備え、上記複数枚の板状部材の接合部は上
記羽根車の回転方向に対して後ろ側でかつ上記翼型羽根
の縁部から離れた位置に配置され、上記翼型羽根は上記
芯板及び上記側板の間に実質的に密着するよう固定され
たことを特徴とする請求項１記載の空気清浄装置。3. The impeller comprises an airfoil blade formed by joining a plurality of plate members, a core plate and side plates holding the airfoil blades, and The joint portion is disposed on the rear side with respect to the rotation direction of the impeller and at a position away from the edge of the airfoil blade, so that the airfoil blade substantially adheres between the core plate and the side plate. The air purifying apparatus according to claim 1, wherein the air purifying apparatus is fixed.
Ｄ1sと羽根外径Ｄ2sの内外径比（Ｄ1s／Ｄ2s）が０．５
９〜０．７６の範囲に設定され、上記芯板及び上記側板
は同一形状に形成されて、上記翼型羽根は上記芯板及び
上記側板の間に実質的に密着するよう固定されたことを
特徴とする請求項１記載の空気清浄装置。4. The impeller has an inner / outer diameter ratio (D1s / D2s) of an inner diameter D1s on the side plate side of the airfoil blade to an outer diameter D2s of the blade is 0.5.
In a range of 9 to 0.76, the core plate and the side plate are formed in the same shape, and the airfoil blade is fixed so as to be substantially in close contact between the core plate and the side plate. The air purifying apparatus according to claim 1, wherein
保持する芯板および側板とを備え、上記芯板及び側板は
上記翼型羽根の先端の外接円の径より大きい外径を有す
るよう形成され、上記翼型羽根は上記芯板及び上記側板
の間に実質的に密着するよう固定され、上記風向板の先
端を上記翼型羽根の先端の外接円と上記芯板及び側板外
形との間に位置するよう配設したことを特徴とする請求
項１記載の空気清浄装置。5. The impeller includes an airfoil blade, a core plate and a side plate for holding the airfoil blade, and the core plate and the side plate have an outer diameter larger than a diameter of a circumscribed circle at a tip of the airfoil blade. The airfoil blade is fixed so as to be substantially in close contact between the core plate and the side plate, and the tip of the wind direction plate is circumscribed by the tip of the airfoil blade and the core plate and the side plate outer shape. The air purifying apparatus according to claim 1, wherein the air purifying apparatus is disposed between the air purifying apparatus and the air purifying apparatus.
が曲線形状の断面を有するよう形成されたことを特徴と
する請求項１記載の空気清浄装置。6. The air purifying apparatus according to claim 1, wherein the wind direction plate is formed so that a side close to the airfoil blade has a curved cross section.
有するターボファンと、上記ターボファンの吸込口に空
気を供給するベルマウスと、このターボファンから吹き
出された空気を清浄化するフィルタと、上記ターボファ
ンから吹き出された空気を加圧して上記フィルタに導く
加圧室を内部に有するハウジングとを備えた空気清浄装
置において、上記ターボファンは上記ハウジング内に格
納され、機外静圧２９．４Ｐａ±１０％、上記フィルタ
からの平均吹き出し風速０．３ｍ／秒±１０％、風量１
３ｍ3／分±１０％のときに消費電力４０Ｗ±１０％と
なるよう構成されたことを特徴とする空気清浄装置。7. A turbo fan having an impeller and a motor for rotating the impeller, a bell mouth for supplying air to an inlet of the turbo fan, and a filter for purifying air blown out from the turbo fan. , A housing having a pressurized chamber therein for pressurizing air blown out from the turbo fan and leading the air to the filter, wherein the turbo fan is stored in the housing, and the external static pressure 29 0.4 Pa ± 10%, average blowing speed from the above filter 0.3 m / sec ± 10%, air volume 1
An air purifier characterized in that power consumption is 40 W ± 10% at 3 m 3 / min ± 10%.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27079497A JP3774552B2 (en) | 1997-10-03 | 1997-10-03 | Air purifier |
| US09/164,582 US6156090A (en) | 1997-10-03 | 1998-10-01 | Air cleaner having vanes with a winglike cross-section between a shroud and baseplate for rotation within a housing |
| DE19845501A DE19845501B4 (en) | 1997-10-03 | 1998-10-02 | Fan unit for an air cleaner |
| TW087116446A TW367401B (en) | 1997-10-03 | 1998-10-02 | Air cleaner |
| KR1019980041683A KR100322829B1 (en) | 1997-10-03 | 1998-10-02 | Air cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27079497A JP3774552B2 (en) | 1997-10-03 | 1997-10-03 | Air purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11108403A true JPH11108403A (en) | 1999-04-23 |
| JP3774552B2 JP3774552B2 (en) | 2006-05-17 |
Family
ID=17491107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27079497A Expired - Fee Related JP3774552B2 (en) | 1997-10-03 | 1997-10-03 | Air purifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3774552B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014097627A1 (en) | 2012-12-21 | 2014-06-26 | ダイキン工業株式会社 | Centrifugal fan |
| CN106969422A (en) * | 2015-10-30 | 2017-07-21 | Lg电子株式会社 | Blowing fan and the air regulator with the blowing fan |
| CN114484839A (en) * | 2021-12-10 | 2022-05-13 | 惠瑞净化科技(江苏)有限公司 | Install canned type high-efficient supply-air outlet on lithium cell toilet's roof |
-
1997
- 1997-10-03 JP JP27079497A patent/JP3774552B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014097627A1 (en) | 2012-12-21 | 2014-06-26 | ダイキン工業株式会社 | Centrifugal fan |
| CN106969422A (en) * | 2015-10-30 | 2017-07-21 | Lg电子株式会社 | Blowing fan and the air regulator with the blowing fan |
| CN106969422B (en) * | 2015-10-30 | 2020-06-30 | Lg电子株式会社 | Air supply fan and air conditioner with same |
| CN114484839A (en) * | 2021-12-10 | 2022-05-13 | 惠瑞净化科技(江苏)有限公司 | Install canned type high-efficient supply-air outlet on lithium cell toilet's roof |
| CN114484839B (en) * | 2021-12-10 | 2023-05-23 | 惠瑞净化科技(江苏)有限公司 | Install high-efficient supply-air outlet of sealed on lithium cell toilet roof |
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|---|---|
| JP3774552B2 (en) | 2006-05-17 |
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