KR20090084595A - Blower with noise cancelling structure - Google Patents

Blower with noise cancelling structure Download PDF

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Publication number
KR20090084595A
KR20090084595A KR1020080010872A KR20080010872A KR20090084595A KR 20090084595 A KR20090084595 A KR 20090084595A KR 1020080010872 A KR1020080010872 A KR 1020080010872A KR 20080010872 A KR20080010872 A KR 20080010872A KR 20090084595 A KR20090084595 A KR 20090084595A
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KR
South Korea
Prior art keywords
blower
fluid
case
holes
partitions
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KR1020080010872A
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Korean (ko)
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홍현성
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주식회사 티비엠
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Priority to KR1020080010872A priority Critical patent/KR20090084595A/en
Publication of KR20090084595A publication Critical patent/KR20090084595A/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
    • 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
    • F04D29/002—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
    • F04D29/66—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
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • 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

A blower equipped with a noise reduction structure is provided to reduce fluid noise ejected to a blower outlet by passing fluid through a plurality of partitions and through-holes. A blower equipped with a noise reduction structure comprises a plurality of partitions(20,30,40) and a plurality of through-holes(21,31,41). A plurality of partitions are installed along the form of an blower case(10) with maintaining the fixed interval within the blower case. The through-hole is formed in a plurality of partitions. The through-hole formed in the partition is formed to be cross. The fluid is ejected at fixed pressure and speed. The fluid are diffused through a plurality of partitions and through-holes. As the fluid passes through a plurality of partitions and through-holes, the noise of the fluid ejected to the blower outlet is reduced.

Description

소음방지구조를 갖춘 송풍기{BLOWER WITH NOISE CANCELLING STRUCTURE}BLOWER WITH NOISE CANCELLING STRUCTURE}

본 발명은 송풍기에 관한 것으로서, 특히 송풍기의 케이스를 다층 격벽으로 형성하여 공기층을 형성함과 아울러 다층 격벽에 각각 관통공을 엇갈리게 형성하여 송풍기의 팬에 의해 흡입되는 공기가 배출될 때 발생되는 유체 소음을 순차적으로 감쇄시키는 송풍기 또는 송풍기 케이스의 외측을 흡음재로 감싸서 흡음재에 의해 더욱 유체 소음을 감쇄시키는 소음방지구조를 갖춘 송풍기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower, in particular, to form an air layer by forming a casing of a blower into a multilayer partition, and to form through-holes alternately in the multilayer partition to generate fluid noise generated when air sucked by the fan of the blower is discharged. It relates to a blower having a noise prevention structure for wrapping the outside of the blower or the blower case to attenuate sequentially with a sound absorbing material to further reduce the fluid noise by the sound absorbing material.

일반적으로 송풍기는 환기나 공기조절을 위해 가정용이나 산업용으로 광범위하게 사용되고 있다. In general, blowers are widely used for home or industrial use for ventilation or air conditioning.

모터로 구동되는 송풍기는 팬을 회전구동하여 케이스의 일측으로 공기를 흡입하고, 케이스에 흡입된 공기는 팬에 의해 타측의 토출구 측으로 배출되게 하는 것으로서 팬의 회전 작동에 의해 흡입되어 배출되는 공기의 유동에 의해 이상소음이 상당히 많이 발생 되는 문제점이 있었다.The blower driven by the motor rotates the fan to suck air to one side of the case, and the air sucked into the case is discharged to the discharge port on the other side by the fan. There was a problem that a lot of abnormal noise caused by.

따라서 케이스 내로 유동되는 유체에 의해 발생하는 유체 소음을 감소시키기 위해 소음제거에 우수한 효과를 갖는 흡음재를 송풍기 케이스 내외에 결합시켜 사용하고 있었다.Therefore, in order to reduce the fluid noise generated by the fluid flowing into the case was used to combine the sound absorbing material having an excellent effect in noise removal in and outside the blower case.

그러나 이와 같이 흡음재를 사용하는 송풍기 케이스는 배출되는 공기의 일부만이 접촉되어 소음이 감소 될 뿐 대부분의 배출공기는 토출구로 배출되므로 소음감소효과를 크게 얻을 수 없었다. However, in the blower case using the sound absorbing material, only a part of the discharged air is contacted to reduce the noise, and most of the discharged air is discharged to the discharge port, so that the noise reduction effect could not be obtained significantly.

본 발명은 상기의 종래 송풍기에서 발생 되는 소음 문제점을 해결하기 위해 개발된 것으로서, 본 발명의 목적은 송풍기의 케이스 일측으로 흡입되어 타측으로 배출되는 공기의 배출소음을 효과적으로 감소시킬 수 있는 소음방지구조를 갖춘 송풍기를 제공하고자 하는 것이다.The present invention was developed to solve the noise problem generated in the conventional blower, an object of the present invention is a noise prevention structure that can effectively reduce the exhaust noise of the air is sucked to one side of the case of the blower and discharged to the other side It is to provide a blower equipped.

본 발명의 송풍기는 모터에 의해 구동되는 팬이 케이스 내에 수용되는 송풍기에 있어서,The blower of the present invention is a blower in which a fan driven by a motor is accommodated in a case,

팬을 감싸는 송풍기 케이스를 다층의 격벽으로 감싸서 유체의 배출통로를 형성하여 격벽 사이에 공기층을 형성하고,The blower case surrounding the fan is covered with a multi-layered partition to form a discharge passage of the fluid to form an air layer between the partitions,

다층 격벽에 다수의 관통공을 형성하여 팬에 의해 흡입된 공기가 내측 격벽으로부터 외측 케이스로 확산되게 함으로써 달성된다.It is achieved by forming a plurality of through holes in the multilayer partition wall so that the air sucked by the fan is diffused from the inner partition wall to the outer case.

관통공은 유체가 외측으로 확산 유동되도록 미세구멍으로 형성함으로써 달성된다.Through-holes are achieved by forming micropores so that fluid flows outwardly.

본 발명의 소음방지구조를 갖춘 송풍기는 환기를 목적으로 하는 급·배기 장 치, 전열교환기, 레인지 후드, 환풍기 등의 흡·배기 라인에 사용되는 곳에 적용될 수 있는 것으로서, 특히 팬에 의해 흡입되어 배출되는 공기에 의해 발생되는 소음을 관통공이 형성된 격벽으로 확산 유동되게 함으로서 유체 유동에 의한 소음을 효과적으로 감소시키는 효과를 갖는다.The blower having the noise prevention structure of the present invention can be applied to a place used for intake / exhaust lines such as an air supply / exhaust device, a heat exchanger, a range hood, a fan, and the like, and is sucked and discharged by a fan. The noise generated by the air is diffused to the partition wall through which the through hole is formed, thereby effectively reducing the noise caused by the fluid flow.

본 발명의 송풍기는 공기와 같은 유체를 흡입하여 공급하거나 배출하는 흡배출라인에 사용될 수 있는 것으로서,As the blower of the present invention can be used in the intake and exhaust line for sucking or supplying or discharging a fluid such as air,

송풍기의 작동시에 발생되는 소음의 발생을 감쇄시키기 위해 송풍기 케이스 내에 소정 간격을 유지하면서 송풍기 케이스의 형태를 따르는 다수의 격벽을 설치함과 동시에 격벽에 다수의 관통공을 형성하여,In order to reduce the generation of noise generated during operation of the blower, while maintaining a predetermined interval in the blower case, while installing a plurality of partition walls in the form of the blower case, and forming a plurality of through holes in the partition wall,

소정의 압력 및 속도로 배출되는 유체가 다수의 격벽 및 관통공을 통과하여 확산유동되게 함으로써 송풍기 토출구로 배출되는 유체 소음을 효과적으로 감소되게 한 것이 특징이다.It is characterized in that the fluid discharged to the blower discharge port is effectively reduced by allowing the fluid discharged at a predetermined pressure and speed to flow through the plurality of partitions and through-holes.

격벽에 각각 형성된 관통공은 상호 엇갈리게 형성되는 것이 바람직하다.The through-holes formed in each of the partition walls are preferably formed to cross each other.

관통공은 유체가 외측으로 확산 유동되도록 미세구멍으로 형성하는 것이 바람직하다.The through-holes are preferably formed as micropores so that fluid flows outwardly.

유체 소음의 감쇄가 더욱 잘 이루어지도록 케이스에도 관통공이 형성되어 흡음재가 결합될 수 있다Through holes are formed in the case so that the attenuation of fluid noise is better, and sound absorbing materials can be combined.

이하 첨부 도면을 참조하여 본 발명의 일 실시예의 송풍기를 더욱 상세히 설명한다.Hereinafter, a blower according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 송풍기는 케이스(10) 내에 팬(fan)(3)을 구동하는 모터가 내장설치되고, 이 모터의 모터축(1)은 팬(3)과의 연결을 위해 고정케이스(2)가 결합되고, 고정케이스(2)는 팬(3)이 연결고정되고, 이 팬(3)은 흡입개구(51)를 갖는 측판(50)으로 밀폐된다.In the blower of the present invention, a motor for driving a fan 3 is installed in the case 10, and the motor shaft 1 of the motor has a fixed case 2 for connection with the fan 3. And the fixed case 2 is connected to the fan 3 is fixed, the fan 3 is sealed by a side plate 50 having a suction opening (51).

케이스(10) 내에는 케이스(10)의 형태를 따르는 다수의 격벽(20, 30, 40)이 팬(3)을 감싸도록 설치된다. 이들 격벽(20, 30, 40)은 상호 소정 간격으로 이격 설치되고, 팬(3)을 감싸면서 토출구(60)측으로 연장된 형태를 갖는다.In the case 10, a plurality of partition walls 20, 30, and 40 along the shape of the case 10 are installed to surround the fan 3. These partitions 20, 30, 40 are spaced apart from each other at predetermined intervals, and have a form extending to the discharge port 60 while surrounding the fan (3).

그리고, 격벽(20, 30, 40)에는 다수의 관통공(21, 31, 41)이 각각 형성된다.In addition, a plurality of through holes 21, 31, and 41 are formed in the partition walls 20, 30, and 40, respectively.

또한 관통공(21, 31, 41)의 형태는 원형, 장공형 등의 형태로 이루어질 수 있다.In addition, the shape of the through-holes 21, 31, 41 may be formed in the form of a circular, long hole and the like.

또한 송풍기의 외측을 구성하는 케이스(10)는 관통공(11)이 형성될 수 있다. 관통공(11)이 형성되는 경우 케이스의 형태와 같이 구성된 흡음재(80)가 케이스(10)에 결합되어 관통공(11)이 밀폐되는 것이 바람직하다(도 3 및 도 4참조).In addition, a through hole 11 may be formed in the case 10 constituting the outside of the blower. When the through hole 11 is formed, it is preferable that the sound absorbing material 80 configured as the case shape is coupled to the case 10 so that the through hole 11 is sealed (see FIGS. 3 and 4).

흡음재(80)가 적용되는 송풍기는 케이스(10)에 관통공이 형성된 것을 제외하고 상기의 송풍기와 동일하므로 동일 도면부호를 사용하여 설명한다.The blower to which the sound absorbing material 80 is applied is the same as the above blower except that the through hole is formed in the case 10 and will be described using the same reference numerals.

상기와 같이 구성된 본 고안의 소음방지구조를 갖춘 송풍기는Blower having a noise prevention structure of the present invention configured as described above

모터와 팬이 설치된 케이스(10) 내에 팬(3)을 감싸서 토출구(60) 측으로 유체를 안내도록 다수의 격벽(20, 30, 40)을 케이스(10) 내에 소정 간격으로 설치하여 격벽(20, 30, 40) 사이에 공기층이 형성되게 한다.A plurality of partitions 20, 30, and 40 are installed in the case 10 at predetermined intervals to surround the fan 3 in the case 10 in which the motor and the fan are installed to guide the fluid to the discharge port 60. An air layer is formed between 30 and 40).

송풍기의 토출구(60)측으로 연장된 다수의 격벽(20, 30, 40)의 단부 부분은 지지판(70)으로 밀폐되고, 격벽(20, 30, 40)의 측면은 측판(50)으로 밀폐된다.End portions of the plurality of partition walls 20, 30, 40 extending toward the discharge port 60 side of the blower are sealed by the support plate 70, and side surfaces of the partition walls 20, 30, 40 are sealed by the side plate 50.

이와 같이 측판(50)과 지지판(70)에 의해 밀폐되는 송풍기가 온(ON) 작동되면 팬의 회전에 의해 측판(50)의 흡입개구(51)를 통해 공기가 유입되고, 유입된 공기는 팬(3)에 의해 압축되어 토출구(60)로 배출된다. 이때, 흡입개구(51)를 통해 유입된 공기는 팬(3)을 둘러싸고 있는 격벽(40)의 관통공(41)을 통해서 외측의 격벽(30)에 부딪쳐서 확산되고, 다시 격벽(30)의 관통공(31)을 통해서 그 외측의 격벽(20)으로 부딪쳐서 확산된 후 최종적으로 격벽(20)의 관통공(21)을 통해서 케이스(10)에 부딪쳐서 확산됨으로써 공기의 흡입 후 배출에 의해 발생되는 소음이 감쇄되는 것이다.As such, when the blower sealed by the side plate 50 and the support plate 70 is turned on, air is introduced through the suction opening 51 of the side plate 50 by the rotation of the fan, and the introduced air is a fan. It is compressed by (3) and discharged to the discharge port 60. At this time, the air introduced through the suction opening 51 strikes the outer partition 30 through the through hole 41 of the partition 40 surrounding the fan 3, and diffuses again, and passes through the partition 30 again. The noise generated by the inhalation and discharge of air by hitting and spreading through the ball 31 to the partition 20 on the outer side and finally hitting the case 10 through the through-hole 21 of the partition 20. This is to be attenuated.

또한, 케이스(10)에 형성된 관통공(11)을 통해서 유동하는 공기는 케이스(10)를 감싸는 흡음재(80)에 흡입되어 감쇄가 이루어진다.In addition, the air flowing through the through hole 11 formed in the case 10 is sucked by the sound absorbing material 80 surrounding the case 10 to be attenuated.

도 1은 본 발명의 송풍기의 일 실시예를 보여주는 분해 사시도.1 is an exploded perspective view showing an embodiment of the blower of the present invention.

도 2는 도 1의 결합구조를 보여주는 단면도.2 is a cross-sectional view showing a coupling structure of FIG.

도 3은 본 발명의 송풍기의 다른 실시예를 보여주는 분해 사시도.Figure 3 is an exploded perspective view showing another embodiment of the blower of the present invention.

도 4는 도 3의 결합구조를 보여주는 단면도.4 is a cross-sectional view showing a coupling structure of FIG.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10: (송풍기)케이스 20, 30, 40: 격벽10: (blower) cases 20, 30, 40: bulkhead

11, 21, 31, 41: 관통공 50: 측판11, 21, 31, 41: through hole 50: side plate

51: 흡입개구 60: 토출구51: suction opening 60: discharge opening

70: 지지판 80: 흡음재70: support plate 80: sound absorbing material

Claims (3)

유체를 흡입하여 배출하는 송풍기에 있어서,In the blower which sucks and discharges the fluid, 송풍기 케이스 내에 소정 간격을 유지하면서 송풍기 케이스의 형태를 따르는 다수의 격벽을 설치함과 동시에 격벽에 다수의 관통공을 형성하여 소정의 압력 및 속도로 배출되는 유체가 다수의 격벽 및 관통공을 통과하여 확산 유동 되게 함으로써 송풍기 토출구로 배출되는 유체 소음을 효과적으로 감소 되게 한 것을 특징으로 하는 소음방지구조를 갖춘 송풍기.While maintaining a predetermined distance in the blower case, while installing a plurality of partitions along the shape of the blower case and forming a plurality of through holes in the partition wall, the fluid discharged at a predetermined pressure and speed passes through the plurality of partitions and through holes. Blower having a noise prevention structure characterized in that the diffused flow to effectively reduce the fluid noise discharged to the blower discharge port. 청구항 1에 있어서,The method according to claim 1, 격벽에 형성된 관통공은 상호 엇갈리게 형성된 것을 특징으로 하는 소음방지구조를 갖춘 송풍기.The through-holes formed in the partition wall are blowers having a noise prevention structure, characterized in that they are alternately formed. 청구항 2에 있어서,The method according to claim 2, 케이스는 흡음재가 결합되어 관통공이 밀폐되는 것을 특징으로 하는 소음방지구조를 갖춘 송풍기.The case is a blower having a noise prevention structure characterized in that the sound absorbing material is coupled to the through-hole is sealed.
KR1020080010872A 2008-02-01 2008-02-01 Blower with noise cancelling structure KR20090084595A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104314874A (en) * 2014-10-16 2015-01-28 珠海格力电器股份有限公司 Volute and fan comprising same
CN106288265A (en) * 2015-05-25 2017-01-04 珠海格力电器股份有限公司 Air duct assembly and air conditioner
CN114458638A (en) * 2022-03-02 2022-05-10 佛山市南海九洲普惠风机有限公司 Noise reduction structure for air duct of axial flow fan
WO2023245797A1 (en) * 2022-06-22 2023-12-28 Tcl王牌电器(惠州)有限公司 Air passage structure and air purifier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104314874A (en) * 2014-10-16 2015-01-28 珠海格力电器股份有限公司 Volute and fan comprising same
CN106288265A (en) * 2015-05-25 2017-01-04 珠海格力电器股份有限公司 Air duct assembly and air conditioner
CN114458638A (en) * 2022-03-02 2022-05-10 佛山市南海九洲普惠风机有限公司 Noise reduction structure for air duct of axial flow fan
CN114458638B (en) * 2022-03-02 2023-09-19 佛山市南海九洲普惠风机有限公司 Noise reduction structure for air duct of axial flow fan
WO2023245797A1 (en) * 2022-06-22 2023-12-28 Tcl王牌电器(惠州)有限公司 Air passage structure and air purifier

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