KR100803919B1 - Shroud of fan assembly - Google Patents

Shroud of fan assembly Download PDF

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Publication number
KR100803919B1
KR100803919B1 KR1020060033864A KR20060033864A KR100803919B1 KR 100803919 B1 KR100803919 B1 KR 100803919B1 KR 1020060033864 A KR1020060033864 A KR 1020060033864A KR 20060033864 A KR20060033864 A KR 20060033864A KR 100803919 B1 KR100803919 B1 KR 100803919B1
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South Korea
Prior art keywords
fan
shroud
housing
band
fan assembly
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KR1020060033864A
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Korean (ko)
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KR20070102124A (en
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신동수
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주식회사 두원공조
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Priority to KR1020060033864A priority Critical patent/KR100803919B1/en
Publication of KR20070102124A publication Critical patent/KR20070102124A/en
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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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • 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
    • F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
    • 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
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
    • 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
    • F04D29/663—Sound attenuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

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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 발명은, 블레이드의 단부를 연결하는 밴드를 가진 팬과, 상기 팬을 회전구동시키는 구동모터와, 상기 밴드와 소정간격의 틈새를 가지는 하우징을 구비하는 쉬라우드로 이루어지는 팬 조립체에 있어서, 상기 하우징(66)의 가장자리에는 상기 팬의 회전에 따라 하우징 외부의 공기가 유입하여 상기 틈새에서의 압력 불균형을 해소하도록 압력 해소 구멍(66b)이 형성되어 있으므로, 팬과 쉬라우드 사이에서의 압력의 불균형을 근원적으로 해소하여 송풍효율을 높이고 소음발생을 방지하는 효과가 있다.The present invention is a fan assembly consisting of a shroud comprising a fan having a band connecting the end of the blade, a drive motor for rotating the fan, and a housing having a gap with the band at a predetermined interval, the housing comprising: At the edge of 66, a pressure releasing hole 66b is formed so that air outside the housing flows in as the fan rotates to solve the pressure imbalance in the gap, so that the pressure imbalance between the fan and the shroud is prevented. It eliminates fundamentally to increase the blowing efficiency and prevent noise.

Description

팬 조립체의 쉬라우드{shroud of fan assembly}Shroud of fan assembly

도1은 종래 팬 조립체를 나타내는 평면도,1 is a plan view showing a conventional fan assembly,

도2는 도1의 단면도,2 is a cross-sectional view of FIG.

도3은 도1에서 팬 및 구동모터가 제거된 상태의 쉬라우드를 나타내는 평면도,3 is a plan view illustrating a shroud in a state in which a fan and a driving motor are removed in FIG. 1;

도4는 본 발명의 적용된 팬 조립체를 나타내는 단면도,4 is a cross-sectional view showing an applied fan assembly of the present invention;

도5는 도4에서 팬 및 구동모터가 제거된 상태의 쉬라우드를 나타내는 평면도,FIG. 5 is a plan view illustrating a shroud in a state in which a fan and a driving motor are removed in FIG. 4; FIG.

도6은 본 발명이 적용된 팬 조립체에서 압력 해소 구멍이 형성된 부분의 상세도이다.6 is a detailed view of a portion where a pressure releasing hole is formed in a fan assembly to which the present invention is applied.

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

40 : 팬 46 : 밴드40: fan 46: the band

66 : 하우징 66b : 압력 해소 구멍66: housing 66b: pressure relief hole

본 발명은 팬 조립체의 쉬라우드에 관한 것으로서, 보다 상세하게는 팬과 쉬 라우드 사이에서의 압력의 불균형을 해소하는 팬 조립체의 쉬라우드에 관한 것이다. The present invention relates to a shroud of a fan assembly, and more particularly to a shroud of a fan assembly that eliminates the unbalance of pressure between the fan and the shroud.

통상적으로 자동차의 엔진 룸(engine room)에는 자동차 구동엔진과, 엔진의 과열을 방지할 수 있는 냉각수단과, 자동차 내부의 탑승자 공간에 대한 공기조화 기능을 지닌 공기조화수단 등이 설치되어 있다. 자동차 엔진의 냉각방식은 공냉식과 수냉식으로 구분할 수 있는데, 수냉식 엔진 냉각장치는 엔진의 외주면을 따라 유동하는 냉각수로써 엔진을 냉각하는 방식이다. 보통 자동차 엔진의 전면에는 라디에이터가 설치되며, 엔진 냉각수는 라디에이터를 통해 유동함으로써 외부의 공기와 열교환이 이루어진다. 라디에이터의 열교환작용을 강제하기 위해 라디에이터의 일측에는 팬 조립체가 설치된다. Typically, an engine room of an automobile includes an automobile driving engine, cooling means for preventing overheating of the engine, and air conditioning means having an air conditioning function for an occupant space inside the vehicle. Automotive engine cooling can be divided into air-cooled and water-cooled, the water-cooled engine cooler is a method of cooling the engine by the coolant flowing along the outer peripheral surface of the engine. Usually, a radiator is installed on the front of an automobile engine, and the engine coolant flows through the radiator to exchange heat with outside air. A fan assembly is installed at one side of the radiator to force the heat exchange of the radiator.

일반적으로 팬 조립체는 도1 및 도2에 도시한 바와 같이, 팬(10)과, 상기 팬(10)을 회전구동시키는 구동모터(20)와, 팬과 구동모터를 지지하는 쉬라우드(30)를 구비한다. 도3은 도1에서 팬 및 구동모터가 제거된 상태의 쉬라우드를 나타내는 평면도이다.In general, as shown in FIGS. 1 and 2, the fan assembly includes a fan 10, a drive motor 20 for rotating the fan 10, and a shroud 30 supporting the fan and the drive motor. It is provided. 3 is a plan view illustrating a shroud in a state in which a fan and a driving motor are removed in FIG. 1.

상기 팬(10)은 상기 구동모터(20)의 회전축(22)에 결합되는 허브(12)와, 상기 허브(12)의 외주면에 형성되는 다수개의 블레이드(14)와, 상기 블레이드(14)의 단부를 연결하는 밴드(16)로 이루어진다. 상기 쉬라우드(30)는 상기 구동모터(20)가 지지되는 원형의 모터 지지부(32)와, 상기 모터 지지부(32)로부터 방사상으로 연장된 고정자(34)와, 상기 고정자(34)의 단부를 원형으로 연결하는 하우징(36)과, 상기 하우징(36)으로부터 연장형성된 후드(38)로 이루어진다. The fan 10 includes a hub 12 coupled to the rotating shaft 22 of the drive motor 20, a plurality of blades 14 formed on an outer circumferential surface of the hub 12, and the blades 14 of the fan 14. It consists of a band 16 connecting the ends. The shroud 30 includes a circular motor support part 32 on which the drive motor 20 is supported, a stator 34 extending radially from the motor support part 32, and an end of the stator 34. It consists of a housing 36 connecting in a circle and a hood 38 extending from the housing 36.

상기 밴드(16)와 상기 하우징(36)의 사이 하류측에는 역류가 방지되도록 역류방지턱(36a)이 형성되어 있으며, 상기 밴드(16)의 상단에는 역류를 방지하기 위한 절곡부(16a)가 형성되어 있다.On the downstream side between the band 16 and the housing 36, a backflow prevention jaw 36a is formed to prevent backflow, and a bent portion 16a is formed at an upper end of the band 16 to prevent backflow. have.

팬 조립체에서, 팬의 압력손실은 유동손실과 더불어 소음을 유발시킨다. 소음발생의 원인으로는, 흡입측의 장애물에 의한 익(블레이드) 상류에서 난류발생에 대한 공기의 압력섭동에 의한 손실, 허브의 경계층에 의한 손실, 쉬라우드 하우징에 의한 손실, 밴드와 하우징 사이의 틈새 손실, 블레이드 후류의 2차유동, 블레이트 끝단에서의 유동의 박리 등이 있다. In the fan assembly, the pressure loss of the fan causes noise along with the flow loss. Sources of noise include loss of pressure perturbation of air to turbulence upstream by blades on the suction side, loss by the boundary layer of the hub, loss by the shroud housing, between the band and the housing. Loss of clearance, secondary flow of blade wake, separation of flow at the end of the blade, and the like.

이러한 소음발생의 원인 중에서, 밴드와 하우징 사이의 틈새에서 역류에 의한 소용돌이의 형성으로 인한 소음은 상기 역류방지턱(36a) 및 절곡부(16a)를 설치함에 따라 어느 정도 감소되고 있으며, 또한 하우징에 톱니모양을 형성하여 상기 하우징과 밴드 사이 틈새의 불균일 압력을 완화하여 소음의 감소효과를 얻고 있다. Among the causes of the occurrence of noise, the noise due to the formation of the vortex due to the backflow in the gap between the band and the housing is reduced to some extent by installing the backflow prevention jaw 36a and the bent portion 16a, and also saw tooth in the housing Forming a shape to reduce the non-uniform pressure of the gap between the housing and the band to obtain a noise reduction effect.

그런데, 종래 팬 조립체에서 역류를 방지하기 위해 설치된 역류방지턱 및 절곡부와, 압력완화를 위한 하우징의 톱니모양 형성으로서는 역류형성을 방지하고 압력의 불균형을 해소하는데 한계가 있어 소음을 효과적으로 방지하지 못한다는 문제점이 있었다.However, in the conventional fan assembly, the backflow prevention jaw and the bent portion installed to prevent the backflow, and the serrated shape of the housing for the pressure relief have limitations in preventing the backflow formation and eliminating the unbalance of pressure, thus preventing the noise effectively. There was a problem.

따라서, 본 발명은 상기 문제점을 해결하기 위해 이루어진 것으로서, 본 발명의 목적은 팬과 쉬라우드 사이에서의 압력의 불균형을 근원적으로 해소하여 송풍효율을 높이고 소음발생을 방지하는 팬 조립체의 쉬라우드를 제공하는 데 있다.Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a shroud of the fan assembly to fundamentally solve the pressure imbalance between the fan and the shroud to increase the blowing efficiency and prevent the occurrence of noise. There is.

상기 목적을 달성하기 위한 본 발명의 의한 팬 조립체의 쉬라우드는, 블레이드의 단부를 연결하는 밴드를 가진 팬과, 상기 팬을 회전구동시키는 구동모터와, 상기 밴드와 소정간격의 틈새를 가지는 하우징을 구비하는 쉬라우드로 이루어지는 팬 조립체에 있어서, 상기 하우징의 가장자리에는 상기 팬의 회전에 따라 하우징 외부의 공기가 유입하여 상기 틈새에서의 압력 불균형을 해소하도록 압력 해소 구멍이 형성되어 있는 것을 특징으로 한다.The shroud of the fan assembly according to the present invention for achieving the above object comprises a fan having a band connecting the end of the blade, a drive motor for rotating the fan, and a housing having a clearance between the band and a predetermined interval. In the fan assembly comprising a shroud provided, characterized in that the pressure relief hole is formed at the edge of the housing so that the air outside the housing flows in accordance with the rotation of the fan to eliminate the pressure imbalance in the gap.

상기 밴드의 상단에는 외측으로 절곡된 절곡부가 형성되고, 상기 압력 해소 구멍은 상기 절곡부의 하측에 형성되어 있는 것이 바람직하다. It is preferable that the bent part bent outward is formed in the upper end of the said band, and the said pressure relief hole is formed in the lower side of the said bent part.

이하, 본 발명의 실시예에 대해 첨부도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도4에 도시한 바와 같이 본 발명이 적용된 팬 조립체는, 팬(40)과, 상기 팬(40)을 회전구동시키는 구동모터(50)와, 팬과 구동모터를 지지하는 쉬라우드(60)를 구비한다. 도5는 도4에서 팬 및 구동모터가 제거된 상태의 쉬라우드를 나타내는 평면도이다.As shown in FIG. 4, the fan assembly to which the present invention is applied includes a fan 40, a drive motor 50 for rotating the fan 40, and a shroud 60 supporting the fan and the drive motor. Equipped. FIG. 5 is a plan view illustrating a shroud in a state in which a fan and a driving motor are removed in FIG. 4.

상기 팬(40)은 상기 구동모터(50)의 회전축(52)에 결합되는 허브(42)와, 상기 허브(42)의 외주면에 형성되는 다수개의 블레이드(44)와, 상기 블레이드(44)의 단부를 연결하는 밴드(46)로 이루어진다. The fan 40 includes a hub 42 coupled to the rotation shaft 52 of the drive motor 50, a plurality of blades 44 formed on an outer circumferential surface of the hub 42, and the blades 44 of the fan 44. It consists of a band 46 connecting the ends.

도4 및 도5에 도시한 바와 같이, 상기 쉬라우드(60)는 상기 구동모터(50)가 지지되는 원형의 모터 지지부(62)와, 상기 모터 지지부(62)로부터 방사상으로 연장된 고정자(64)와, 상기 고정자(64)의 단부를 원형으로 연결하는 하우징(66)과, 상 기 하우징(66)으로부터 연장형성된 후드(68)로 이루어진다. As shown in FIGS. 4 and 5, the shroud 60 includes a circular motor support 62 on which the drive motor 50 is supported, and a stator 64 extending radially from the motor support 62. ), A housing 66 connecting the end of the stator 64 in a circular shape, and a hood 68 extending from the housing 66.

상기 밴드(46)와 상기 하우징(66)의 사이 하류측에는 역류가 방지되도록 역류방지턱(66a)이 형성되어 있고, 상기 밴드(46)의 상단에는 외측으로 절곡된 절곡부(46a)가 형성되어 있으며, 상기 하우징(66)의 내면은 상기 밴드(46)의 외면과 소정간격의 틈새(C)를 가지게 설치된다.On the downstream side between the band 46 and the housing 66, a backflow prevention jaw 66a is formed to prevent backflow, and a bent portion 46a bent outward is formed at an upper end of the band 46. The inner surface of the housing 66 is installed to have a gap C between the outer surface of the band 46 and a predetermined interval.

그리고, 상기 하우징(66)의 가장자리에는 상기 팬(40)의 회전에 따라 하우징 외부의 공기가 유입하여 상기 틈새(C)에 유동하는 공기의 압력 불균형을 해소하도록 압력 해소 구멍(66b)이 형성되어 있다. 상기 압력 해소 구멍(66b)은 상기 절곡부의 하측에 형성되어 있다.In addition, a pressure releasing hole 66b is formed at an edge of the housing 66 to solve the pressure imbalance of air flowing in the gap C due to the inflow of air outside the housing as the fan 40 rotates. have. The pressure releasing hole 66b is formed below the bent portion.

이와 같이 구성된 본 발명에 의한 팬 조립체의 쉬라우드에 의하면, 팬(40)의 회전에 따라 상기 압력 해소 구멍(66b)을 통해 외부의 공기가 상기 하우징의 내부로 유입되어 팬(40)을 통해 하측으로 빠져 나가므로, 상기 밴드(46)와 하우징(66)의 틈새(C) 사이에서의 압력의 불균일이 해소되어 팬을 통과한 공기가 상기 틈새를 통해 역류하지 않으므로 송풍효율이 상승할 뿐만 아니라 소음의 거의 생기지 않게 된다. According to the shroud of the fan assembly according to the present invention configured as described above, as the fan 40 rotates, outside air flows into the inside of the housing through the pressure releasing hole 66b and is lowered through the fan 40. Since the pressure unevenness between the band 46 and the gap C of the housing 66 is eliminated, air passing through the fan does not flow back through the gap, so that the blowing efficiency is increased as well as the noise. Rarely occurs.

본 발명에 의한 팬 조립체의 쉬라우드에 의하면, 팬과 쉬라우드 사이에서의 압력의 불균형을 근원적으로 해소하여 송풍효율을 높이고 소음발생을 방지하는 효과가 있다.According to the shroud of the fan assembly according to the present invention, the pressure imbalance between the fan and the shroud is essentially eliminated to increase the blowing efficiency and to prevent noise.

Claims (2)

삭제delete 블레이드의 단부를 연결하는 밴드를 가진 팬과, 상기 팬을 회전구동시키는 구동모터와, 상기 밴드와 소정간격의 틈새를 가지는 하우징을 구비하는 쉬라우드로 이루어지는 팬 조립체에 있어서, A fan assembly comprising a fan having a band connecting an end of a blade, a drive motor for rotating the fan, and a shroud having a housing having a gap with the band, the fan assembly comprising: 상기 하우징의 가장자리에는 상기 팬의 회전에 따라 하우징 외부의 공기가 유입하여 상기 틈새에서의 압력 불균형을 해소하도록 압력 해소 구멍이 형성되어 있되,At the edge of the housing is formed a pressure relief hole so that the air outside the housing flows in accordance with the rotation of the fan to eliminate the pressure imbalance in the gap, 상기 밴드의 상단에는 외측으로 절곡된 절곡부가 형성되고, The upper end of the band is formed bent outwardly bent, 상기 압력 해소 구멍은 상기 절곡부의 하측에 형성되어 있는 것을 특징으로 하는 팬 조립체의 쉬라우드. The pressure release hole is a shroud of the fan assembly, characterized in that formed in the lower side of the bent portion.
KR1020060033864A 2006-04-14 2006-04-14 Shroud of fan assembly KR100803919B1 (en)

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KR101987016B1 (en) * 2013-01-28 2019-09-30 주식회사 두원공조 Cooling fan assembly for vehicle
JP6768074B2 (en) * 2016-02-08 2020-10-14 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ Engine cooling fan enclosure shroud with unobstructed exhaust
KR102016227B1 (en) 2017-11-28 2019-08-29 엘지전자 주식회사 Fan assembly and refrigerator comprising the same
KR102573584B1 (en) * 2018-06-19 2023-09-01 엘지전자 주식회사 A machine room for a refrigerator

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JPS57110800A (en) 1980-12-26 1982-07-09 Matsushita Seiko Co Ltd Axial-flow type blower
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JPS57110800A (en) 1980-12-26 1982-07-09 Matsushita Seiko Co Ltd Axial-flow type blower
JPH0643224U (en) * 1992-11-16 1994-06-07 東洋運搬機株式会社 Industrial vehicle cooling system
JP2001020893A (en) 1999-07-05 2001-01-23 Leben Co Ltd Ventilator
JP2001234898A (en) 2000-02-25 2001-08-31 Matsushita Electric Works Ltd Air cleaner
KR20030018118A (en) * 2001-08-27 2003-03-06 한라공조주식회사 Assembly of fan and shroud
KR20050021810A (en) * 2003-08-26 2005-03-07 주식회사 두원공조 assembly of fan and shroud

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