KR200332249Y1 - High efficiency and low noise type centrifugal fan - Google Patents

High efficiency and low noise type centrifugal fan Download PDF

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Publication number
KR200332249Y1
KR200332249Y1 KR20-2003-0025975U KR20030025975U KR200332249Y1 KR 200332249 Y1 KR200332249 Y1 KR 200332249Y1 KR 20030025975 U KR20030025975 U KR 20030025975U KR 200332249 Y1 KR200332249 Y1 KR 200332249Y1
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South Korea
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air
centrifugal blower
rotating shaft
air inlet
rotor
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KR20-2003-0025975U
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Korean (ko)
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석 서문
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석 서문
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/442—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps rotating diffusers
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

본 고안은 소음이 줄어드는 고효율 원심송풍기에 관한 것으로, 공기흡입구(11)와, 공기배출구(12)를 갖춘 케이싱(10)내에 회전축(20)에 연결된 날개차(21)를 갖추게 되며, 이 회전축(20)은 모터 등과 같은 구동수단에 의해 회전되는 풀리(22)와 연동되도록 연결되어 회전하게 되면서 유동을 발생하게 되는 원심송풍기에 있어서, 상기 회전축(20)이 연장되면서 이 회전축(20)상에 원추형의 공기유인콘(30)을 갖추게 되며, 회전차(21)와 공기흡입구(11) 사이의 상단에 역풍방지판(31)이 갖추게 되고, 회전차(21)와 공기흡입구(11)의 연결공간에 역풍방지링(32)이 갖추게 되는 것이다. 또한 상기 회전차(21)의 형상이 이 회전차의 최외각 모서리부가 역풍방지판(31)과 부딪치지 않도록 사선방향으로 절단되는 것이다.The present invention relates to a high-efficiency centrifugal blower with reduced noise, and has an air inlet (11) and a vane (21) connected to the rotating shaft (20) in a casing (10) having an air outlet (12). 20 is a centrifugal blower which is connected to and interlocked with the pulley 22 that is rotated by a driving means such as a motor to generate a flow while the rotation shaft 20 extends and is conical on the rotation shaft 20. It will be equipped with an air induction cone 30 of, the top of the anti-wind prevention plate 31 is provided between the rotor 21 and the air inlet 11, the connection space of the rotor 21 and the air inlet 11 The reverse wind prevention ring 32 is to be equipped. In addition, the shape of the rotor wheel 21 is cut in an oblique direction so that the outermost corner portion of the rotor wheel does not collide with the anti-wind prevention plate 31.

이와 같이 본 고안의 원심송풍기는 회전축을 연장하여 이 회전축을 통해 공기유인콘을 설치하고, 날개차와 공기흡입구 사이에 역풍방지판, 역풍방지링을 설치함에 따라, 종래 이 연결부위에서 발생되던 역풍이 더 이상 발생되지 않아 소음이 줄어듬은 물론 고풍량, 고효율을 얻을 수 있는 효과를 얻을 수 있게 된다.As described above, the centrifugal blower of the present invention extends the rotating shaft to install an air induction cone through the rotating shaft, and installs a backwind prevention plate and a backwind prevention ring between the van and the air intake port, thereby preventing the backwind generated from the connection part. Since it is no longer generated, noise is reduced and high wind volume and high efficiency can be obtained.

Description

소음이 줄어드는 고효율 원심송풍기{High efficiency and low noise type centrifugal fan}High efficiency and low noise type centrifugal fan

본 고안은 원심송풍기에 관한 것으로, 더욱 상세하게는 케이싱내에 공기유인콘과, 역풍방지판, 역풍방지링을 갖춤에 따라, 역풍이 방지되면서 소음이 줄어듬은 물론 고풍량, 고효율을 얻을 수 있도록 한 소음이 줄어드는 고효율 원심송풍기에 관한 것이다.The present invention relates to a centrifugal blower, and more particularly, by equipping the casing with an air guiding cone, a backwind preventing plate, and a backwind prevention ring, it is possible to obtain high wind volume and high efficiency as well as reduce noise while preventing backwind. A high efficiency centrifugal blower with reduced noise is provided.

일반적으로 송풍기는 유동을 일으키는 날개차(impeller)와, 날개차로 들어가고 나오는 유동을 안내하는 케이싱(casing)으로 이루지면서, 공기의 유동을 일으키는 장치인데, 종래 원심송풍기는 도 3에 도시된 바와 같이 공기흡입구(110)와, 공기배출구(120)를 갖춘 케이싱(100)내에 회전축(200)에 연결된 날개차(210)를 갖추게 되며, 이 회전축(200)은 모터 등과 같은 구동수단에 의해 회전되는 풀리(220)와 연동되도록 연결되어 회전하게 된다. 이때 회전축(200)은 양측에 각각 베어링(230)과 보스(240)를 매개로 케이싱에 연결된다.In general, the blower is composed of an impeller causing a flow and a casing for guiding the flow into and out of the van, which is a device for causing air flow, and a conventional centrifugal blower is shown in FIG. An inlet 110 and a vane 210 connected to a rotating shaft 200 in a casing 100 having an air outlet 120 are provided with a pulley (rotated by a driving means such as a motor). It is connected to rotate with 220). At this time, the rotating shaft 200 is connected to the casing via the bearing 230 and the boss 240 on each side.

상기와 같이 이루어진 원심송풍기는 모터와 같은 구동수단에 의해 풀리(220)가 회전하게 되고, 이 풀리(220)와 연결,고정된 회전축(200)축이 회전하면서, 역시 회전축(200)과 연결된 회전차(210)이 회전하면서 유동을 일으키게 되는 것이다. 따라서 공기유입구(110)를 통해 유입된 공기가 회전차(210)에 의해 공기배출구(120)를 통해 배출되는 것이다.In the centrifugal blower made as described above, the pulley 220 is rotated by a driving means such as a motor, and is connected to the pulley 220 and the fixed rotating shaft 200 rotates while still being connected to the rotating shaft 200. As the car 210 rotates, it causes a flow. Therefore, the air introduced through the air inlet 110 is discharged through the air outlet 120 by the rotary car 210.

여기서 미설명부호 400은 베이스인데, 케이싱(100)을 바닥이나 건물에 안정되게 안착하는 수단이다.Here, reference numeral 400 is a base, it is a means for stably seating the casing 100 on the floor or building.

그러나 상기 원심송풍기는 보스(240)의 모양을 유선형으로 하여 외부공기를 유인하게 되나, 그 역할이 미미하여 뚜렷한 효과를 볼 수 없으며,However, the centrifugal blower is attracted to the outside air by the streamlined shape of the boss 240, but its role is insignificant, so that no obvious effect can be seen.

또한 공기유입구(110)의 외벽을 통해 역풍이 발생하게 되면서 송풍효율이 떨어짐은 물론 소음이 발생하게 되는 문제점이 발생하게 된다.In addition, as the reverse wind is generated through the outer wall of the air inlet 110, the blowing efficiency is lowered, as well as the noise is generated.

이에 본 고안은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 회전축을 연장하여 케이싱내에 공기유인콘과, 역풍방지판, 역풍방지링을 갖춤에 따라, 역풍이 방지되면서 소음이 줄어듬은 물론 고풍량, 고효율을 얻을 수 있도록 된 소음이 줄어드는 고효율 원심송풍기를 제공함에 그 목적이 있다.The present invention has been devised to solve the above problems, and by extending the rotating shaft, the air induction cone, the backwind prevention plate, the backwind prevention ring in the casing, the backwind is prevented, the noise is reduced, as well as the high air volume Its purpose is to provide a highly efficient centrifugal blower that reduces the noise to achieve high efficiency.

도 1은 본 고안에 따른 고효율 원심송풍기의 평면도,1 is a plan view of a high efficiency centrifugal blower according to the present invention;

도 2는 본 고안에 따른 고효율 원심송풍기의 단면도,Figure 2 is a cross-sectional view of the high efficiency centrifugal blower according to the present invention,

도 3은 도 2에 대응되는 종래에 사용되던 원심송풍기의 단면도이다.3 is a cross-sectional view of a centrifugal blower conventionally used corresponding to FIG. 2.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10 --- 케이싱, 11--- 공기흡입구,10 --- casing, 11 --- air intake,

12 --- 공기배출구, 20 --- 회전축,12 --- air outlet, 20 --- rotary shaft,

21 --- 회전차, 22 --- 풀리,21 --- slewing wheel, 22 --- pulley,

23,24 --- 베어링, 25 --- 보스,23,24 --- bearing, 25 --- boss,

30 --- 공기유인콘, 31 --- 역풍방지판,30 --- air induction cone, 31 --- check valve,

32 --- 역풍방지링, 40 --- 베이스.32 --- anti-wind ring, 40 --- base.

상기와 같은 목적을 달성하기 위한 본 고안은공기흡입구와, 공기배출구를 갖춘 케이싱내에 회전축에 연결된 날개차를 갖추게 되며, 이 회전축은 모터 등과 같은 구동수단에 의해 회전되는 풀리와 연동되도록 연결되어 회전하게 되면서 유동을 발생하게 되는 원심송풍기에 있어서, 상기 회전축이 연장되면서 이 회전축상에 원추형의 공기유인콘을 갖추게 되며, 회전차와 공기흡입구 사이의 상단에 역풍방지판이 갖추게 되고, 회전차와 공기흡입구의 연결공간에 역풍방지링(32)이 갖추게 되는 것을 특징으로 한다.The present invention for achieving the above object has an air inlet and a vane connected to a rotating shaft in a casing having an air outlet, the rotating shaft is connected to the rotation pulley rotated by a driving means such as a motor to rotate. In the centrifugal blower that generates a flow while the rotation axis is extended, the rotary shaft is provided with a conical air induction cone on the rotary shaft, and an anti-wind preventing plate is provided at the upper end between the rotary car and the air inlet, and It is characterized in that the backwind prevention ring 32 is provided in the connection space.

또한 본 고안은 상기 회전차의 형상이 이 회전차의 최외각 모서리부가 역풍방지판과 부딪치지 않도록 사선방향으로 절단되는 것을 특징으로 한다.In addition, the present invention is characterized in that the shape of the wheel is cut in an oblique direction so that the outermost corner portion of the wheel does not collide with the anti-wind prevention plate.

이하, 본 고안의 바람직한 실시예를 첨부한 도면을 참조하여 상세하게 설명하기로 한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 1은 본 고안에 따른 고효율 원심송풍기의 평면도이고, 도 2는 본 고안에 따른 고효율 원심송풍기의 단면도이다. 도시된 바와 같이 본 고안의 원심송풍기는 공기흡입구(11)와, 공기배출구(12)를 갖춘 케이싱(10)내에 회전축(20)에 연결된 날개차(21)를 갖추게 되며, 이 회전축(20)은 모터 등과 같은 구동수단에 의해 회전되는 풀리(22)와 연동되도록 연결되어 회전하게 되면서 유동을 발생하게 되는 원심송풍기에 있어서, 상기 회전축(20)이 연장되면서 이 회전축(20)상에 원추형의 공기유인콘(30)을 갖추게 되며, 회전차(21)와 공기흡입구(11) 사이의 상단에 역풍방지판(31)을 갖추게 되고, 회전차(21)와 공기흡입구(11)의 연결공간에 역풍방지링(32)을 갖추게 된다.1 is a plan view of a high efficiency centrifugal blower according to the present invention, Figure 2 is a cross-sectional view of a high efficiency centrifugal blower according to the present invention. As shown, the centrifugal blower of the present invention has an air inlet 11 and a vane 21 connected to the rotating shaft 20 in the casing 10 having the air outlet 12, the rotating shaft 20 is In the centrifugal blower which is connected to and interlocked with the pulley 22 which is rotated by a driving means such as a motor, and the like, the centrifugal blower generates a flow, and the rotary shaft 20 extends to draw a conical air oil on the rotary shaft 20. The cone 30 is provided, and the back wind prevention plate 31 is provided at the upper end between the rotor 21 and the air inlet 11, and the back wind is prevented in the connection space between the rotor 21 and the air inlet 11. Ring 32 is provided.

여기서 상기 회전차(21)의 형상은 이 회전차의 최외각 모서리부가 역풍방지판(31)과 부딪치지 않도록 사선방향으로 절단되어 형성된다.Here, the shape of the rotor wheel 21 is formed by cutting in an oblique direction so that the outermost corner portion of the rotor wheel does not collide with the anti-wind prevention plate 31.

따라서 회전축(20)에 연결된 회전차(21)가 회전하더라도 상기 역풍방지판(31) 및 역풍방지링(32)에 의해 공기흡입구(11) 상단에서 발생되는 역풍이 더이상 발생되지 않게 되며, 이것에 의해 소음이 발생되지 않으면서 효율이 향상되는 것이다.Therefore, even if the rotary wheel 21 connected to the rotary shaft 20 rotates, the reverse wind generated at the upper end of the air intake port 11 by the anti-wind preventing plate 31 and the anti-wind preventing ring 32 is no longer generated. This improves efficiency without generating noise.

또한 상기 공기유인콘(30)에 의해 공기흡입구(11)로 흡입되는 공기가 날개차(21)를 통해 공기배출구(12)로 원할하게 이동하면서 배출되는 것이다.In addition, the air sucked into the air inlet 11 by the air induction cone 30 is discharged while moving smoothly to the air outlet 12 through the van.

한편 상기 회전축(20)에 베어링(23,24)이 양쪽으로 설치되고, 이 베이링(23,24) 사이에 보스(25)가 설치되는 것이다.On the other hand, bearings 23 and 24 are provided on both sides of the rotating shaft 20, and a boss 25 is installed between the bearings 23 and 24.

미설명부호 40은 케이싱(10)을 바닥이나 건물에 안정되게 안착할 수 있도록 하는 베이스이다.Reference numeral 40 is a base for allowing the casing 10 to be stably seated on the floor or a building.

상기와 같이 이루어진 본 고안 원심송풍기의 작용 및 작동에 대해 설명하기로 한다.The operation and operation of the present invention centrifugal blower made as described above will be described.

먼저 모터(도시되지 않음)와 같은 구동수단과 연결되어 풀리(22)가 회전하게 되면, 이 풀리와 연결된 회전축(20)이 회전하게 되고, 이것에 의해 회전차(21)가 회전하게 된다. 이때 공기흡입구(11)를 통해 유입된 공기가 공기유인콘(30)의 외벽을 타고 내려오면서 원할하게 회전차(21)의 날개로 유입되는 것이다. 이렇게 유입된 공기는 회전차(21)를 날개를 통해 공기배출구(12)로 배출되면서 케이싱(10)의 외부로 빠져나가게 된다. 금방이라도 달려갈겁니다.First, when the pulley 22 is rotated in connection with a driving means such as a motor (not shown), the rotation shaft 20 connected to the pulley rotates, thereby rotating the rotor 21. At this time, the air introduced through the air inlet 11 is smoothly introduced into the wing of the rotor 21 while coming down the outer wall of the air induction cone 30. Air introduced in this way is discharged to the outside of the casing 10 while being discharged to the air outlet 12 through the rotor (21). I'll run right away.

이때 역풍방지판(31)에 의해 공기배출구(12)에서 더이상 역풍이 발생되지 않아 소음등이 발생되지 않고 송풍효율도 향상되며, 회전차(21)와 공기흡입구(11)의 연결부위에 설치된 역풍방지링(32)에 의해 더이상 연결부위에서의 공기유입을 허용하지 않게 됨에 따라 소음발생은 물론, 송풍효율이 향상되게 된다.At this time, no backwind is generated at the air outlet 12 by the counterwind prevention plate 31 so that noise is not generated, and the air blowing efficiency is also improved, and the counterwind installed at the connection portion between the rotor 21 and the air inlet 11 As the prevention ring 32 no longer permits the inflow of air from the connection portion, the noise is generated as well as the blowing efficiency is improved.

이상과 같이 상세하게 설명된 본 고안에 의하면, 회전축을 연장하여 이 회전축을 통해 공기유인콘을 설치하고, 날개차와 공기흡입구 사이에 역풍방지판, 역풍방지링을 설치함에 따라, 종래 이 연결부위에서 발생되던 역풍이 더 이상 발생되지 않아 소음이 줄어듬은 물론 고풍량, 고효율을 얻을 수 있는 탁월한 효과가 있다.According to the present invention described in detail as described above, by installing the air induction cone through the rotary shaft to extend the rotary shaft, and installed the anti-wind prevention plate, anti-wind air ring between the van and the air inlet, in the conventional connection As the generated backwind no longer occurs, the noise is reduced, and there is an excellent effect of obtaining a high air volume and high efficiency.

Claims (2)

공기흡입구(11)와, 공기배출구(12)를 갖춘 케이싱(10)내에 회전축(20)에 연결된 날개차(21)를 갖추게 되며, 이 회전축(20)은 모터 등과 같은 구동수단에 의해 회전되는 풀리(22)와 연동되도록 연결되어 회전하게 되면서 유동을 발생하게 되는 원심송풍기에 있어서,An air inlet 11 and a vane 21 connected to a rotating shaft 20 in a casing 10 having an air outlet 12 are provided. The rotating shaft 20 is a pulley rotated by a driving means such as a motor. In the centrifugal blower which is connected to interlock with the 22 to generate a flow while rotating, 상기 회전축(20)이 연장되면서 이 회전축(20)상에 원추형의 공기유인콘(30)을 갖추게 되며, 회전차(21)와 공기흡입구(11) 사이의 상단에 역풍방지판(31)이 갖추게 되고, 회전차(21)와 공기흡입구(11)의 연결공간에 역풍방지링(32)이 갖추게 되는 것을 특징으로 하는 소음이 줄어드는 고효율 원심송풍기.As the rotating shaft 20 extends, the conical air induction cone 30 is provided on the rotating shaft 20, and the anti-wind prevention plate 31 is provided at the upper end between the rotating vehicle 21 and the air suction port 11. High-efficiency centrifugal blower is reduced noise, characterized in that the reverse wind prevention ring 32 is provided in the connection space between the rotor wheel 21 and the air inlet (11). 제1항에 있어서, 상기 회전차(21)의 형상이 이 회전차의 최외각 모서리부가 역풍방지판(31)과 부딪치지 않도록 사선방향으로 절단되는 것을 특징으로 하는 소음이 줄어드는 고효율 원심송풍기.The high-efficiency centrifugal blower according to claim 1, wherein the shape of the rotor wheel (21) is cut diagonally so that the outermost corner portion of the rotor wheel does not collide with the anti-wind prevention plate (31).
KR20-2003-0025975U 2003-08-12 2003-08-12 High efficiency and low noise type centrifugal fan KR200332249Y1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100916036B1 (en) 2009-03-23 2009-09-08 코오롱건설주식회사 Air inlet valve for waste collection system
WO2018169316A1 (en) 2017-03-17 2018-09-20 주식회사 아모텍 Cooling fan and seat cooling device comprising same
KR20180106828A (en) 2017-03-17 2018-10-01 주식회사 아모텍 A cooling fan and seat cooling system having the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100916036B1 (en) 2009-03-23 2009-09-08 코오롱건설주식회사 Air inlet valve for waste collection system
WO2018169316A1 (en) 2017-03-17 2018-09-20 주식회사 아모텍 Cooling fan and seat cooling device comprising same
KR20180106828A (en) 2017-03-17 2018-10-01 주식회사 아모텍 A cooling fan and seat cooling system having the same
US11420544B2 (en) 2017-03-17 2022-08-23 Amotech Co., Ltd. Cooling fan and seat cooling device comprising same

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