KR100275264B1 - Blower - Google Patents

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Publication number
KR100275264B1
KR100275264B1 KR1019970051987A KR19970051987A KR100275264B1 KR 100275264 B1 KR100275264 B1 KR 100275264B1 KR 1019970051987 A KR1019970051987 A KR 1019970051987A KR 19970051987 A KR19970051987 A KR 19970051987A KR 100275264 B1 KR100275264 B1 KR 100275264B1
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KR
South Korea
Prior art keywords
housing
impeller
air
blower
noise
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Application number
KR1019970051987A
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Korean (ko)
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KR19990031321A (en
Inventor
박준형
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황한규
만도공조주식회사
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Priority to KR1019970051987A priority Critical patent/KR100275264B1/en
Publication of KR19990031321A publication Critical patent/KR19990031321A/en
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Publication of KR100275264B1 publication Critical patent/KR100275264B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24Means for preventing or suppressing noise
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/04Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/065Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: An air blower is provided to prevent vortex generated in a space between a housing and an impeller and noise due to the vortex. CONSTITUTION: One side of a frame(15) of an impeller(14) is formed extendedly to protrude through an air intake hole(11) of a housing(10). A bellmouth-shaped guide surface(16) is formed on an inner corner part of the extended part protruding from the housing to induce intake of air and to intercept noise by intake air current. There is no space between an inner surface of the housing with the air intake hole formed thereon and a side surface of the impeller so that vortex is not generated between the impeller and the housing when the impeller rotates to reduce noise. The frame of the impeller is extended to protrude through the air intake hole of the housing to reduce width(b) of the housing.

Description

송풍기{BLOWER}Blower {BLOWER}

본 발명은 공기조화기에 사용되는 송풍기에 관한 것이다.The present invention relates to a blower for use in an air conditioner.

종래의 송풍기는 도 1에 도시되어 있는 바와 같이, 하우징(housing:1)의 내부에 모터(motor:2)가 고정되고, 이 모터(2)의 회전축에 기류를 형성하는 임펠러(impellar:3)가 고정된다. 그리고 임펠러(3)와 대향하는 하우징(1)의 일측면에는 공기가 흡입되는 원형의 공기흡입구멍(1a)이 형성되고, 그 외주에는 공기가 배출되는 배출덕트(duct:4)가 연장 형성된다.As shown in FIG. 1, a conventional blower has an impeller 3 fixed to a motor 2 inside a housing 1 and forming an air flow on a rotating shaft of the motor 2. Is fixed. In addition, a circular air suction hole 1a through which air is sucked is formed in one side of the housing 1 facing the impeller 3, and a discharge duct 4 through which air is discharged is formed on the outer circumference thereof. .

그리고 하우징(1)의 공기흡입구멍(1a)에는 공기의 흡입을 유도함과 함께 흡입기류에 의한 소음을 차단하기 위해 벨 마우스(bell mouth) 형상의 쉬라우드(shroud : 5)가 하우징(1)의 내부로 소정길이 인입되게 설치된다.In addition, a bell mouth-shaped shroud 5 is provided in the air intake hole 1a of the housing 1 to block the noise caused by the air intake while inducing air intake. It is installed to draw a predetermined length inside.

그러나 이와 같이 구성된 종래의 송풍기는, 쉬라우드(5)가 하우징(1)내로 소정깊이 인입되는 구성이므로, 임펠러(3)와 하우징(1)의 사이에 쉬라우드(5)의 인입길이 만큼의 간격(a)이 형성되게 된다.However, the conventional blower configured as described above has a structure in which the shroud 5 is introduced into the housing 1 by a predetermined depth, so that an interval equal to the length of the shroud 5 is drawn between the impeller 3 and the housing 1. (a) is formed.

따라서 임펠러의 회전시, 도 1에 화살표로 도시한 바와 같이 임펠러(3)와 하우징(1)의 사이공간에서 와류가 발생하여 소음이 발생하는 문제점이 있었다.Therefore, when the impeller is rotated, as shown by arrows in FIG. 1, there is a problem in that a vortex occurs in the space between the impeller 3 and the housing 1 to generate noise.

본 발명은 상술한 바와 같은 종래의 문제점을 해결하기 위하여 창출된 것으로서, 하우징과 임펠러 사이의 공간에서 발생되는 와류 및 이로 인한 소음을 방지 할 수 있는 송풍기를 제공하는데 그 목적이 있다.The present invention has been made to solve the conventional problems as described above, and an object of the present invention is to provide a blower capable of preventing eddy currents and noise generated in the space between the housing and the impeller.

도 1은 종래의 송풍기를 개략적으로 도시한 단면도,1 is a cross-sectional view schematically showing a conventional blower,

도 2는 본 발명에 따른 송풍기를 도시한 단면도,2 is a sectional view showing a blower according to the present invention;

도 3은 본 발명에 따른 송풍기를 도시한 사시도.3 is a perspective view showing a blower according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the code | symbol about the principal part of drawing>

10 : 하우징(housing) 11 : 공기흡입구멍10 housing (housing) 11 air suction hole

13 : 모터(motor) 14 : 임펠러(impellar)13 motor 14 impeller

15 : (임펠러의)프레임 16 : (임펠러의)가이드 면15: (impeller's) frame 16: guide face (of the impeller)

상술한 바와 같은 목적을 달성하기 위하여 본 발명은, 공기흡입구멍과 배출덕트를 가지는 하우징과, 상기 하우징 내에 고정되는 모터 및 이의 회전축에 고정되는 임펠러를 구비하는 송풍기에 있어서,In order to achieve the above object, the present invention provides a blower comprising a housing having an air suction hole and an exhaust duct, a motor fixed in the housing, and an impeller fixed to a rotating shaft thereof.

상기 임펠러의 일측 프레임이 상기 하우징의 공기흡입구멍을 통해 외부로 소정길이 돌출되도록 연장 형성되고, 상기 하우징의 외부로 돌출된 연장부의 내측 모서리부에 공기의 흡입을 유도함과 동시에 흡입기류에 의한 소음을 차단하기 위한 벨 마우스(bell mouth) 형상의 가이드 면이 형성된 것을 특징으로 하는 송풍기를 제공하는데 그 특징이 있다.One side frame of the impeller is formed so as to protrude a predetermined length to the outside through the air suction hole of the housing, induces the suction of air to the inner edge portion of the extension portion protruding to the outside of the housing and at the same time noise from the intake airflow There is provided a blower, characterized in that a guide surface of a bell mouth shape for blocking is formed.

이하 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 송풍기는 도 2에 도시된 바와 같이, 하우징(10)의 일측면에 공기가 흡입되는 원형의 공기흡입구멍(11)이 형성되고, 하우징(10)의 외주에는 상기 공기흡입구멍(11)을 통해 흡입된 공기가 배출되는 배출덕트(12)가 연장 형성된다.As shown in FIG. 2, the blower according to the present invention has a circular air suction hole 11 in which air is sucked in one side of the housing 10, and the air suction hole is formed at an outer circumference of the housing 10. A discharge duct 12 through which air sucked through 11 is discharged is formed.

그리고 하우징(10)의 상기 공기흡입구멍(11)과 대응되는 타측면에는 모터(13)가 고정되고, 이 모터(13)의 회전축에 기류를 형성하는 임펠러(14)가 고정된다.The motor 13 is fixed to the other side surface of the housing 10 corresponding to the air suction hole 11, and the impeller 14, which forms airflow on the rotation shaft of the motor 13, is fixed.

그리고 본 발명의 특징에 따라 임펠러(14)는 그 일측 프레임(15)이 상기 하우징(10)의 공기흡입구멍(11)을 통해 외부로 소정길이 돌출되도록 연장 형성되고, 하우징(10)의 외부로 연장된 프레임(15)의 내측 모서리부에는 공기의 흡입을 유도함과 동시에 흡입기류에 의한 소음을 차단하기 위한 벨 마우스(bell mouth) 형상의 가이드면(16)이 형성된다.In addition, the impeller 14 according to the characteristics of the present invention is formed so that the one side frame 15 is protruded a predetermined length to the outside through the air intake hole 11 of the housing 10, the outside of the housing 10 At the inner edge portion of the extended frame 15, a bell mouth-shaped guide surface 16 is formed to induce the suction of air and to block the noise caused by the intake airflow.

이와 같이 구성된 본 발명에 따른 송풍기는, 임펠러(14)의 일측 프레임(15)이 하우징(10)의 공기흡입구멍(11)을 통해 외부로 소정길이 돌출되도록 소정길이 연장되어 있고, 연장된 프레임(15)의 내측 모서리부에 공기의 흡입을 유도함과 동시에 흡입기류에 의한 소음을 차단하기 위한 벨 마우스(bell mouth) 형상의 가이드면(16)이 형성되어 있으므로, 도 2에 도시된 바와 같이 공기흡입구멍(11)이 형성된 하우징(10)의 내측면과 임펠러(14)의 측면 사이에 공간이 존재하지 않게 된다.The blower according to the present invention configured as described above extends a predetermined length such that one side frame 15 of the impeller 14 protrudes a predetermined length to the outside through the air suction hole 11 of the housing 10, and the extended frame ( Since a guide ring 16 having a bell mouth shape is formed at the inner edge of the air inlet at the same time to induce the intake of air and to block the noise caused by the intake airflow, as shown in FIG. There is no space between the inner side of the housing 10 in which the holes 11 are formed and the side of the impeller 14.

따라서 종래 쉬라우드가 하우징 내부로 소정깊이 인입되는 방식에서 임펠러와 하우징의 사이에 쉬라우드의 인입길이 만큼의 간격(a)에 해당하는 공간에서 발생되는 와류로 인한 소음을 방지할 수 있게 된다.Therefore, the conventional shroud is able to prevent noise due to vortices generated in the space corresponding to the distance (a) of the shroud by the length of the shroud between the impeller and the housing in a manner that the predetermined depth is introduced into the housing.

또한 임펠러의 일측 프레임이 하우징의 공기흡입구멍을 통해 외부로 소정길이 돌출되도록 소정길이 연장되어 있으므로, 종래 방식에서 비하여 하우징의 폭(b)을 줄일 수 있게 되고, 하우징의 구조가 단순해져 하우징의 제작이 간편하게 된다.In addition, since the one side frame of the impeller extends a predetermined length so as to protrude a predetermined length to the outside through the air suction hole of the housing, it is possible to reduce the width (b) of the housing as compared to the conventional method, the structure of the housing is simplified to manufacture the housing This becomes easy.

이상에서 설명한 바와 같이 본 발명 송풍기에 의하면, 공기흡입구멍이 형성된 하우징의 내측면과 임펠러의 측면과의 사이에 공간이 존재하지 않게 되므로, 임펠러의 회전시 임펠러와 하우징 사이에서 와류가 발생되지 않게 된다. 따라서 종래 방식에 비하여 소음이 현저하게 감소되게 되므로 제품의 신뢰성이 향상되게 된다.As described above, according to the blower of the present invention, since there is no space between the inner surface of the housing where the air suction hole is formed and the side surface of the impeller, no vortex is generated between the impeller and the housing during rotation of the impeller. . Therefore, the noise is significantly reduced as compared to the conventional method is to improve the reliability of the product.

Claims (1)

공기흡입구멍과 배출덕트를 가지는 하우징과, 상기 하우징 내부에 고정되는 모터 및 이의 회전축에 고정되는 임펠러를 구비하는 공기조화기의 송풍기에 있어서,In the blower of the air conditioner having a housing having an air intake hole and discharge duct, an impeller fixed to a motor and a rotating shaft thereof, the inside of the housing, 상기 임펠러의 일측 프레임이, 상기 하우징의 공기흡입구멍을 통해 외부로 소정길이 돌출되도록 연장 형성되고, 상기 하우징의 외부로 돌출된 연장부의 내측 모서리부에 공기의 흡입을 유도함과 동시에 흡입기류에 의한 소음을 차단하기 위한 벨 마우스 형상의 가이드 면이 형성된 것을 특징으로 하는 송풍기.One side frame of the impeller is formed so as to protrude a predetermined length to the outside through the air suction hole of the housing, induces the suction of air to the inner edge of the extension portion protruding to the outside of the housing and at the same time noise caused by intake airflow Blower, characterized in that the guide surface of the bell mouth shape for blocking the formed.
KR1019970051987A 1997-10-10 1997-10-10 Blower KR100275264B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970051987A KR100275264B1 (en) 1997-10-10 1997-10-10 Blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970051987A KR100275264B1 (en) 1997-10-10 1997-10-10 Blower

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KR19990031321A KR19990031321A (en) 1999-05-06
KR100275264B1 true KR100275264B1 (en) 2001-01-15

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KR1019970051987A KR100275264B1 (en) 1997-10-10 1997-10-10 Blower

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