WO2010116604A1 - 送風装置 - Google Patents
送風装置 Download PDFInfo
- Publication number
- WO2010116604A1 WO2010116604A1 PCT/JP2010/001495 JP2010001495W WO2010116604A1 WO 2010116604 A1 WO2010116604 A1 WO 2010116604A1 JP 2010001495 W JP2010001495 W JP 2010001495W WO 2010116604 A1 WO2010116604 A1 WO 2010116604A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fan
- housing
- outlet
- tongue
- impeller
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/009—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by bleeding, by passing or recycling fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/422—Discharge tongues
Definitions
- the present invention relates to a blower.
- the blower device includes a housing having a housing suction port and a housing air outlet, and a fan arranged in the housing.
- the fan has a fan case, an impeller disposed in the fan case, and a motor that drives the impeller.
- the fan case has a fan suction port communicated with the housing suction port and a fan air outlet connected to the housing air outlet.
- the outer peripheral portion of the impeller of the fan case has a shape in which the distance from the impeller gradually increases in the rotational direction of the impeller from the tongue portion to the tongue facing position facing the tongue portion (see, for example, Patent Document 1). ).
- the efficiency of the motor was low. That is, since the blower in the above-described conventional example is provided on the ceiling as a ventilation fan, the rotational speed of the impeller is lowered in order to reduce the operation sound and the noise level. Further, the impeller is enlarged in order to obtain a predetermined fan capacity by reducing the rotational speed of the impeller.
- the blower of the present invention comprises a housing having a housing inlet for sucking room air and a housing outlet for blowing the sucked room air into the room, and a fan arranged in the housing.
- a fan case having a tongue portion, an impeller disposed in the fan case, and a motor for driving the impeller, the fan case having a fan suction port communicated with the housing suction port, and the housing
- the fan case has a fan outlet connected to the outlet, and the fan case has a shape in which the distance between the impeller and the inner surface of the fan case is increased in the rotational direction of the impeller from the tongue portion to the tongue-facing position facing the tongue portion.
- the opening area of the fan case from the tongue to the fan outlet is the same as the opening area of the tongue or less than the opening area of the tongue.
- the air blower having such a configuration can reduce the fan impeller, the motor load is reduced and the motor efficiency can be increased.
- FIG. 1 is a front view of a blower according to an embodiment of the present invention.
- FIG. 2 is a bottom view of the blower.
- FIG. 3 is a front view in which the front side of the casing of the blower is removed.
- FIG. 4 is a front view in which the front side of the casing of the blower and the front side of the fan case are removed.
- FIG. 5 is a bottom view in which the bottom side of the casing of the blower is removed.
- FIG. 6 is a bottom view in which the bottom side of the casing of the blower and a part of the fan case are removed.
- FIG. 7 is a cross-sectional view taken along the line AA in FIG. FIG.
- FIG. 8 is a bottom view of the air blower according to the embodiment of the present invention with the bottom side of the casing and the fan case removed.
- FIG. 9 is an enlarged bottom view in which the bottom side of the casing of the blower and a part of the fan case are removed.
- FIG. 10 is a characteristic diagram showing the relationship between the torque and efficiency of the blower and the rotational speed.
- FIG. 1 is a front view of a blower according to an embodiment of the present invention
- FIG. 2 is a bottom view of the blower. 1 and 2
- a housing suction port 2 is provided on the lower surface of a box-like (rectangular body) housing 1
- a housing outlet 3 is provided on a side surface.
- room air is sucked from the housing suction port 2
- the sucked indoor air is blown out from the housing air outlet 3 into the room.
- FIG. 3 is a front view in which the front side of the casing of the blower according to the embodiment of the present invention is removed.
- FIG. 4 is a front view in which the front side of the casing of the blower and the front side of the fan case are removed.
- 5 is a bottom view in which the bottom side of the casing of the blower is removed.
- a fan 4 is arranged as shown in FIGS.
- the fan 4 includes a fan case 5, an impeller 6 disposed in the fan case 5, and a motor 7 that drives the impeller 6.
- FIG. 6 is a bottom view of the blower according to the embodiment of the present invention with the bottom surface of the casing and a part of the fan case removed
- FIG. 7 is a sectional view taken along line 7-7 in FIG. 5
- FIG. FIG. 9 is an enlarged bottom view with the bottom surface side of the casing of the blower device and a part of the fan case removed.
- the fan case 5 having the tongue 10 is connected to the fan suction port 8 communicated with the housing suction port 2 shown in FIGS. 3 and 4 and the housing outlet 3 shown in FIGS. A fan outlet 9 is provided.
- the fan case 5 is formed between the impeller 6 and the inner surface of the fan case 5 in the rotational direction of the impeller 6 from the tongue 10 to the tongue facing position 11 facing the tongue 10.
- the interval is gradually widened.
- the opening area of the fan case 5 from the tongue portion 10 to the fan outlet 9 (the opening area is a direction perpendicular to the main flow of the wind generated from the impeller 6).
- 5 is a substantially linear wall surface that is constant with the opening area of the tongue portion 10 or gradually decreases from that.
- the lower limit of the opening area on the fan outlet 9 side of the fan case 5 is 70% of the opening area from the tongue portion 10 to the tongue portion facing position 11.
- the outer peripheral portion of the impeller 6 and the fan case 5 from the tongue 10 and the tongue facing position 11 to the fan outlet 9 are integrally formed. Therefore, it is very easy to attach the fan case 5 in the housing 1.
- a flange 12 is provided on the outer periphery of the fan air outlet 9 so as to extend in the outer periphery of the entire periphery of the housing air outlet 3 in the housing 1.
- the blower outlet 3 is connected.
- a mounting portion 13 for attaching the fan case 5 to the housing 1 is provided in the fan case 5 between the tongue portion 10 and the tongue facing position 11 to the fan outlet 9.
- the fan case 5 at a position far from the casing outlet 3 is also provided with a mounting portion 13 for the casing 1.
- the fan case 5 is attached to the housing 1 by the four attachment portions 13.
- a connecting duct 14 is connected to the outer portion of the casing outlet 3 outside the casing 1 as shown in FIG.
- the connection duct 14 has a larger diameter at the housing air outlet 3 side than the housing air outlet 3. That is, the housing air outlet 3 side of the connection duct 14 has a larger opening area than the housing air outlet 3.
- a connection duct 14 is attached to an outer portion of the housing air outlet 3 at the outer periphery of the housing air outlet 3 by a flange 15.
- connection duct 14 an inner peripheral duct 16 is provided inside the connection duct 14 as shown in FIG.
- the casing outlet 3 side of the inner peripheral duct 16 has substantially the same opening area as the casing outlet 3. The opening area gradually decreases from the housing outlet 3 side toward the distal end side (left side in FIG. 9) of the connection duct 14.
- the area is substantially constant or gradually decreases. For this reason, noise generation due to turbulence of the air blow hardly occurs.
- the room air sucked into the fan case 5 is sent from the tongue 10 to the tongue facing position 11 in the rotational direction of the impeller 6. And room air is sent to the connection duct 14 via the fan blower outlet 9, the housing
- the opening area is substantially constant or gradually decreases from the tongue portion 10 of the fan case 5 and the portion 11 facing the tongue portion toward the distal end side (left side in FIG. 9) of the connection duct 14 of the inner peripheral duct 16. It becomes the shape to do. Therefore, it is difficult for noise generation due to turbulence of the air to occur.
- the impeller 6 is made smaller than the conventional one.
- the flat area of the impeller 6 is 1/8 or more and 1/3 or less with respect to the flat area of the casing 1 shown in FIG.
- the flat area is 1/8 or more and 1/4 or less). If it is less than 1/8, a sufficient air volume cannot be obtained unless the rotational speed is made extremely high.
- the flat area of the impeller 6 was larger than 1/3 with respect to the flat area of the housing 1.
- FIG. 10 is a characteristic diagram showing the relationship between torque and efficiency of the blower according to the embodiment of the present invention and the rotational speed.
- the A line in FIG. 10 shows the torque of this embodiment
- the B line shows the torque of the conventional example
- the C line shows the efficiency of the motor 7.
- the torque (load) is also small. Accordingly, sufficient fan capacity (air blowing capacity) cannot be obtained unless the rotation speed is increased at both the strong rotation A1 (about 1100 / min) and the weak rotation A2 (about 800 / min). When the rotational speed is increased in this way, the driving sound tends to increase.
- connection duct 14 of the inner peripheral duct 16 is connected from the tongue portion 10 and the tongue portion facing position 11 of the fan case 5.
- the efficiency of the motor 7 is higher in both the strong rotation A1 and the weak rotation A2 than in the conventional strong rotation B1 and weak rotation B2. I was able to do it. As a result, the power consumption of the motor 7 can be reduced by 30% or more.
- the center of the impeller 6 of the fan 4 is arranged in a region farthest from the fan outlet 9 in a region obtained by dividing the flat area of the housing 1 into four equal parts vertically and horizontally.
- the length from the arcuate tongue portion 10 of the fan case 5 to the fan outlet 9 is set to be 5 times or more, preferably 6 times or more (eg 56 mm) of the radius (eg 9 mm) of the tongue portion 10.
- the air passages after the tongue 10 and the tongue facing position 11 of the fan case 5 can be made sufficiently long.
- the height of the impeller 6 of the fan 4 is made smaller than the diameter of the connection duct 14. As shown in FIG. 5 and FIG.
- the fan case 5 from the tongue 10 and the tongue facing position 11 to the fan outlet 9 is bent convexly toward the fan inlet 8. As a result, it is possible to make it difficult for noise generation due to turbulence to occur in the ventilation path after the tongue 10 and the tongue facing position 11.
- the straight line portion 17 at the tongue portion facing position 11 of the fan case 5 has a shape that approaches the center line 18 of the connection duct 14 as the distance from the fan air outlet 9 increases. Therefore, the sound wave that enters the fan case 5 from the connection duct 14 is reflected in a direction different from that of the connection duct 14 at the straight line portion 17, and noise can be further reduced.
- the present invention can be widely used for, for example, a ventilation fan as a low power consumption and quiet blower.
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
図1は本発明の実施の形態の送風装置の正面図、図2は同送風装置の底面図である。図1、図2において、箱状(立法体形状)の筐体1の下面には、筐体吸込口2を設け、側面には筐体吹出口3が設けられている。ここで筐体吸込口2から室内空気が吸込まれ、その吸込まれた室内空気は筐体吹出口3から室内へ吹出される。
2 筐体吸込口
3 筐体吹出口
4 ファン
5 ファンケース
6 羽根車
7 モータ
8 ファン吸込口
9 ファン吹出口
10 舌部
11 舌部対向位置
12 フランジ
13 取り付け部
14 接続ダクト
15 フランジ
16 内周ダクト
17 直線部
18 中心線
Claims (16)
- 室内空気を吸込む筐体吸込口と吸込んだ前記室内空気を室内へ吹出す筐体吹出口とを有する筐体と、
前記筐体内に配置されたファンとを備え、
前記ファンは、舌部を備えたファンケースと、
前記ファンケース内に配置された羽根車と、
前記羽根車を駆動するモータとを有し、
前記ファンケースは、前記筐体吸込口に連通させたファン吸込口と、
前記筐体吹出口に連結させたファン吹出口とを有し、
前記ファンケースは、前記舌部から前記舌部に対向する舌部対向位置まで前記羽根車の回転方向に前記羽根車と前記ファンケースの内面との間隔が広がる形状とし、前記舌部から前記ファン吹出口までの前記ファンケースの開口面積は、前記舌部の開口面積と一定か、前記舌部の開口面積よりも減少することを特徴とする送風装置。 - 前記ファン吹出口の外周には、前記筐体内において、前記筐体吹出口の外周に広がるフランジを設けたことを特徴とする請求項1に記載の送風装置。
- 前記筐体吹出口には、室外に前記室内空気を排出する排気ダクトに接続される接続ダクトを接続したことを特徴とする請求項1に記載の送風装置。
- 前記接続ダクトの前記筐体吹出口側の開口面積は、前記筐体吹出口の開口面積より大きいことを特徴とする請求項3に記載の送風装置。
- 前記接続ダクトの内側に内周ダクトを設け、前記内周ダクトの前記筐体吹出口側の開口面積は、前記筐体吹出口の開口面積と同じにしたことを特徴とする請求項4に記載の送風装置。
- 前記羽根車の外周部分と、の前記舌部および舌部対向位置から前記ファン吹出口までの前記ファンケースとを、一体に形成したことを特徴とする請求項1に記載の送風装置。
- 前記舌部および前記舌部対向位置から前記ファン吹出口までの前記ファンケースに、前記ファンケースを前記筐体へ取り付ける取り付け部を設けたことを特徴とする請求項6に記載の送風装置。
- 前記筐体の下面に前記筐体吸込口を設けるとともに、前記筐体の側面に前記筐体吹出口を設けたことを特徴とする請求項1に記載の送風装置。
- 前記筐体は箱状としたことを特徴とする請求項8に記載の送風装置。
- 前記筐体の平面積に対して、前記羽根車の平面積を1/8以上1/3以下としたことを特徴とする請求項1に記載の送風装置。
- 前記筐体の平面積に対して、前記羽根車の平面積を1/8以上1/4以下としたことを特徴とする請求項1に記載の送風装置。
- 箱状の前記筐体の平面積を上下左右に4等分した領域のうちの前記ファン吹出口から最も離れた領域に前記羽根車の中心を配置したことを特徴とする請求項1に記載の送風装置。
- 前記舌部から前記ファン吹出口までの長さを前記舌部の半径の5倍以上としたことを特徴とする請求項1に記載の送風装置。
- 前記舌部および前記舌部対向位置から前記ファン吹出口までの前記ファンケースが前記ファン吸込口側に凸に湾曲したことを特徴とする請求項1に記載の送風装置。
- 前記接続ダクトの直径よりも前記羽根車の高さを小さくしたことを特徴とする請求項3に記載の送風装置。
- 前記舌部対向位置の直線部が、前記ファン吹出口から遠ざかるに従い前記接続ダクトの中心線に近づくこと特徴とする請求項3に記載の送風装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080014272.7A CN102365465B (zh) | 2009-04-07 | 2010-03-04 | 鼓风装置 |
US13/256,527 US9435350B2 (en) | 2009-04-07 | 2010-03-04 | Air blowing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2009-092636 | 2009-04-07 | ||
JP2009092636A JP5476773B2 (ja) | 2009-04-07 | 2009-04-07 | 送風装置 |
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WO2010116604A1 true WO2010116604A1 (ja) | 2010-10-14 |
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PCT/JP2010/001495 WO2010116604A1 (ja) | 2009-04-07 | 2010-03-04 | 送風装置 |
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US (1) | US9435350B2 (ja) |
JP (1) | JP5476773B2 (ja) |
CN (1) | CN102365465B (ja) |
WO (1) | WO2010116604A1 (ja) |
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CN102192168B (zh) * | 2010-03-17 | 2013-09-25 | 广东松下环境系统有限公司 | 换气扇 |
US10907843B2 (en) * | 2011-11-18 | 2021-02-02 | Broan-Nutone Llc | Ventilating system and method |
FR3001849B1 (fr) * | 2013-02-05 | 2016-06-24 | Byo Networks | Procede pour router des donnees, programme d'ordinateur, controleur de reseau et reseaux associes |
US10313180B2 (en) * | 2013-03-13 | 2019-06-04 | Dell Products L.P. | Systems and methods for managing switching devices in an information handling system |
EP2940582A1 (en) * | 2014-04-30 | 2015-11-04 | DoCoMo Communications Laboratories Europe GmbH | Automated configuration of virtual infrastructure manager access for the virtual network function manager |
US10690137B2 (en) * | 2018-06-06 | 2020-06-23 | Delta Electronics, Inc. | Ventilation fan |
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- 2010-03-04 US US13/256,527 patent/US9435350B2/en active Active
- 2010-03-04 WO PCT/JP2010/001495 patent/WO2010116604A1/ja active Application Filing
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Also Published As
Publication number | Publication date |
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JP5476773B2 (ja) | 2014-04-23 |
CN102365465A (zh) | 2012-02-29 |
US20120014789A1 (en) | 2012-01-19 |
CN102365465B (zh) | 2014-02-26 |
US9435350B2 (en) | 2016-09-06 |
JP2010242629A (ja) | 2010-10-28 |
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