KR20100085235A - Sirocco fan for refrigerator - Google Patents

Sirocco fan for refrigerator Download PDF

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Publication number
KR20100085235A
KR20100085235A KR1020090004417A KR20090004417A KR20100085235A KR 20100085235 A KR20100085235 A KR 20100085235A KR 1020090004417 A KR1020090004417 A KR 1020090004417A KR 20090004417 A KR20090004417 A KR 20090004417A KR 20100085235 A KR20100085235 A KR 20100085235A
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KR
South Korea
Prior art keywords
sirocco fan
refrigerator
tip
blade
main plate
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KR1020090004417A
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Korean (ko)
Inventor
권혁장
Original Assignee
주식회사 대우일렉트로닉스
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Priority to KR1020090004417A priority Critical patent/KR20100085235A/en
Publication of KR20100085235A publication Critical patent/KR20100085235A/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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/301—Cross-sectional characteristics

Abstract

PURPOSE: A sirocco fan for a refrigerator is provided to reduce the noise caused by vortex and to maintain airflow by forming a bent tip on the end of a blade. CONSTITUTION: A sirocco fan(A) for a refrigerator comprises a main plate(100), blades(200) and tips(300). The main plate comprises a hole(101). The blades are formed on the main plate along its circumferential direction at equal intervals. Each tip is formed by the upper end of the blade bent along the circumferential direction of the main plate. The tip is tapered as it becomes far from the main plate. A curved surface is formed between the blade and the tip.

Description

냉장고용 시로코팬{Sirocco fan for refrigerator}Sirocco fan for refrigerator {Sirocco fan for refrigerator}

본 발명은 냉장고용 시로코팬에 관한 것으로, 더욱 상세하게는 와류에 의한 소음을 감소시키도록 형성되는 냉장고용 시로코팬에 관한 것이다.The present invention relates to a sirocco fan for a refrigerator, and more particularly, to a sirocco fan for a refrigerator formed to reduce noise caused by vortex.

냉장고는 압축기, 응축기, 팽창장치 및 증발기를 주요 구성요소로 하여 냉동사이클을 구성하고, 상기 증발기와 저장실 사이의 열전달을 통하여 저장실에 수납된 김치, 야채 등 각종 음식 저장물을 필요에 따라 저온상태로 보관하기 위한 장치이다.The refrigerator constitutes a refrigeration cycle using the compressor, the condenser, the expansion device, and the evaporator as main components, and transfers various food storage items such as kimchi and vegetables stored in the storage compartment to a low temperature state as necessary through heat transfer between the evaporator and the storage compartment. It is a device for storage.

이러한 냉장고는 냉각방식에 따라 상기 저장실의 내부 공기와 저장실에 설치된 증발기 사이의 온도차에 의한 자연대류를 이용하여 저장실 내부를 냉각시키는 직접 냉각방식(이하, '직냉식'이라 한다)과, 상기 저장실의 일측에 설치된 송풍팬의 동작에 의하여 저장실의 내부 공기와 증발기 사이에 발생되는 강제대류를 이용하여 저장실 내부를 냉각시키는 간접 냉각방식(이하, '간냉식'이라 한다)으로 구분된다.The refrigerator has a direct cooling method (hereinafter, referred to as "direct cooling") that cools the inside of the storage compartment by using natural convection caused by a temperature difference between the air inside the storage compartment and the evaporator installed in the storage compartment according to the cooling method, and one side of the storage compartment. It is divided into an indirect cooling method (hereinafter, referred to as 'intercooling') to cool the inside of the storage compartment by using forced convection generated between the air inside the storage compartment and the evaporator by the operation of the blower fan installed in the storage fan.

한편, 상기 간냉식 냉장고에 사용되는 송풍팬은 풍부한 풍량과 조용한 운전특성을 확보하기 위하여 시로코팬이 적용되는 경우가 많다.On the other hand, the blowing fan used in the intercooled refrigerator is often applied to the sirocco fan to ensure abundant air volume and quiet operation characteristics.

도 1은 종래기술에 따른 시르코팬을 도시한 사시도이며, 도 2는 도 1의 'a-a'부 단면도이다.1 is a perspective view showing a sirupan fan according to the prior art, Figure 2 is a cross-sectional view 'a-a' portion of FIG.

도시한 바와 같이, 종래기술에 따른 시로코팬(10)은, 축결합부(11)가 구비되는 주판(12)과, 상기 주판(12)에 원주방향을 따라 등간격으로 형성되는 다수의 블레이드(13)로 구성된다.As illustrated, the sirocco fan 10 according to the related art includes a main plate 12 having an axial coupling part 11 and a plurality of blades formed at equal intervals along the circumferential direction of the main plate 12 ( 13).

또한, 상기 블레이드(13)는 소정 곡률을 나타내도록 형성된다.In addition, the blade 13 is formed to exhibit a predetermined curvature.

그러나, 종래기술에 따르면, 시로코팬(10)이 회전할 때 블레이드(13)가 공기와 마찰하는 것으로 인해 와류가 발생하여 소음이 증가하는 문제점이 있었다.However, according to the related art, when the sirocco fan 10 rotates, the blade 13 rubs with the air, causing eddy currents to increase noise.

본 발명은 전술한 종래의 제반 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 풍량은 유지하면서 와류에 의한 소음을 감소시키도록 형성되는 냉장고용 시로코팬을 제공하는데 있다.The present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is to provide a sirocco fan for a refrigerator formed to reduce the noise caused by the vortex while maintaining the air volume.

상기와 같은 목적을 달성하기 위한 본 발명의 냉장고용 시로코팬은, 축결합부가 형성되는 주판과, 상기 주판에 원주방향을 따라 등간격으로 형성되며 곡률을 가지는 다수의 블레이드 및 상기 블레이드의 축방향 끝단이 곡률 중심이 있는 안쪽방향으로 절곡된 팁을 포함하는 것을 특징으로 한다.In order to achieve the above object, the sirocco fan for a refrigerator of the present invention includes a main plate having an axial coupling portion and a plurality of blades formed at equal intervals along the circumferential direction of the main plate and having a curvature and axial ends of the blades. And a tip bent inwardly with the center of curvature.

또한, 상기 팁은 끝단으로 갈수록 얇아지도록 형성되는 것이 바람직하다.In addition, the tip is preferably formed to become thinner toward the end.

그리고, 상기 블레이드와 팁 사이의 연결부위는 곡면이 형성된 것이 바람직하다.In addition, the connection portion between the blade and the tip is preferably formed with a curved surface.

한편, 상기 팁의 절곡각도는 블레이드를 기준으로 25~35도인 것이 바람직하다.On the other hand, the bending angle of the tip is preferably 25 to 35 degrees based on the blade.

본 발명에 따른 냉장고용 시로코팬에 따르면, 블레이드 끝단으로 절곡된 팁이 형성되어 풍량은 유지하면서 와류에 의한 소음을 감소시키는 효과가 있다.According to the sirocco fan for a refrigerator according to the present invention, the tip bent to the blade end is formed to reduce the noise caused by the vortex while maintaining the air flow.

이하, 본 발명의 바람직한 실시 예를 첨부된 도면을 참조하여 상세하게 설명 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 냉장고용 시로코팬을 도시한 사시도이고, 도 4는 도 3의 'b-b'부 단면도이며, 도 5는 도 3의 'c'방향에서 바라본 측면도이고, 도 6은 도 3의 평면도이다.3 is a perspective view illustrating a sirocco fan for a refrigerator according to the present invention, FIG. 4 is a sectional view taken along the line 'b-b' of FIG. 3, FIG. 5 is a side view viewed from the 'c' direction of FIG. 3, and FIG. 3 is a plan view.

도 3 내지 도 6에 도시한 바와 같이, 본 발명에 따른 냉장고용 시로코팬(A)은, 축결합부(101)가 형성되는 주판(100)과, 축방향에서 바라볼 때 상기 주판(100)에 원주방향을 따라 등간격으로 형성되며 곡률반경을 가지는 다수의 블레이드(200) 및 상기 블레이드(200)의 축방향 끝단이 곡률 중심(C)이 있는 안쪽으로 절곡된 팁(300)으로 구성된다.As shown in Figure 3 to 6, the sirocco fan (A) for a refrigerator according to the present invention, the main plate 100, the shaft coupling portion 101 is formed, and the main plate 100 when viewed in the axial direction It is formed at equal intervals along the circumferential direction to the plurality of blades having a radius of curvature and the axial end of the blade 200 is composed of a tip 300 bent inward with the center of curvature (C).

또한, 상기 블레이드(200)의 높이는 도 5와 같이 주판(100)의 외주면에 인접할수록 낮아지도록 형성된다.In addition, the height of the blade 200 is formed to be lower as the adjacent to the outer peripheral surface of the main plate 100 as shown in FIG.

그리고, 상기 팁(300)은 그 끝단으로 갈수록 얇아지도록 형성되며, 상기 블레이드(200)와 팁(300) 사이의 연결 부위를 곡면을 형성하여 본 발명의 시로코팬(A)의 회전시에 공기저항을 최소화한다.In addition, the tip 300 is formed to become thinner toward the end, and the air resistance during the rotation of the sirocco fan (A) of the present invention by forming a curved surface of the connection portion between the blade 200 and the tip 300 Minimize.

한편, 상기 팁(300)의 절곡각도는 블레이드(200)를 기준으로 25~35도인 것이 바람직하다.On the other hand, the bending angle of the tip 300 is preferably 25 to 35 degrees relative to the blade 200.

따라서, 구동력을 전달받은 시로코팬(A)이 회전하면, 주판(100)의 중심방향으로 공기가 유입되어 블레이드(200)의 측면을 통해 토출된다. 이때, 상술한 팁(300)에 의해 와류와의 마찰을 줄여주어 종래기술과 동일한 풍량을 유지하는 반면 소음은 감소하게 되는 것이다.Therefore, when the sirocco fan A receiving the driving force rotates, air flows in the center direction of the main plate 100 and is discharged through the side surface of the blade 200. At this time, by reducing the friction with the vortex by the tip 300 described above, while maintaining the same air volume as in the prior art, the noise is to be reduced.

이러한 구성에 의해서, 종래기술의 시로코팬(10)과 본 발명의 시로코팬(A)의 소음을 측정하여 아래의 표 1과 같이 비교해 보았다.By this configuration, the noise of the sirocco fan 10 of the prior art and the sirocco fan A of the present invention was measured and compared as shown in Table 1 below.

본 발명의 시로코팬(A)은 종래기술의 시로코팬의 블레이드 끝다에 30도 절곡된 팁(300)이 형성된 것을 대상으로 하였다.The sirocco fan (A) of the present invention targets the tip 300, which is bent at 30 degrees, on the blade end of the sirocco fan of the prior art.

Figure 112009003488679-PAT00001
Figure 112009003488679-PAT00001

표 1에서 볼 수 있는 바와 같이, 종래기술 및 본 발명의 시로코팬의 총소음도를 1/3 옥타브 주파수 밴드를 사용하여 각각 주파수대의 소음을 기록하였으며, 이 값을 계산하여 총소음도(AP)를 구했다. As can be seen from Table 1, the total noise level of the sirocco fan of the prior art and the present invention was recorded using the 1/3 octave frequency band, and the noise of each frequency band was calculated. .

이때, 소음 시험조건은, 시로코팬을 1000rpm으로 회전시킨 상태에서 시로콘팬과 소음측정기의 마이크로폰은 50cm의 거리를 유지한 상태에서 측정하며, 소음측정기는 TESTO社 815 소음측정기를 사용하였다.At this time, the noise test conditions, while the Sirocco fan is rotated at 1000rpm, the microphone of the sirocon fan and the noise measuring instrument is maintained at a distance of 50cm, and the noise measuring instrument is a TESTO 815 noise measuring instrument.

시험을 통해, 종래기술의 시로코팬(10) 총소음도(AP)는 40.7dB이며 본 발명의 시로코팬(A) 총소음도(AP)는 38.9dB로 본 발명에 따른 시로코팬(A)이 1.8dB정도 소음이 감소됨을 나타내었다.Through the test, the conventional Sirocco fan 10 total noise level (AP) is 40.7dB and the Sirocco fan (A) total noise level (AP) of the present invention is 38.9dB and the Sirocco fan (A) according to the present invention is 1.8dB. It has been shown that the degree of noise is reduced.

이상, 본 발명의 바람직한 실시 예에 대하여 상세히 설명하였으나, 본 발명의 기술적 범위는 전술한 실시 예에 한정되지 않고 특허청구범위에 의하여 해석되어야 할 것이다. 이때, 이 기술분야에서 통상의 지식을 습득한 자라면, 본 발명의 범위에서 벗어나지 않으면서도 많은 수정과 변형이 가능함을 고려해야 할 것이다.As mentioned above, although preferred embodiment of this invention was described in detail, the technical scope of this invention is not limited to the above-mentioned embodiment, It should be interpreted by the claim. At this time, those of ordinary skill in the art should consider that many modifications and variations are possible without departing from the scope of the present invention.

도 1은 종래기술에 따른 시로코팬을 도시한 사시도이다.1 is a perspective view showing a sirocco fan according to the prior art.

도 2는 도 1의 'a-a'부 단면도이다.FIG. 2 is a cross-sectional view of the 'a-a' part of FIG. 1.

도 3은 본 발명에 따른 냉장고용 시로코팬을 도시한 사시도이다.3 is a perspective view showing a sirocco fan for a refrigerator according to the present invention.

도 4는 도 3의 'b-b'부 단면도이다.4 is a cross-sectional view taken along the line 'b-b' of FIG. 3.

도 5는 도 3의 'c'방향에서 바라본 측면도이다.FIG. 5 is a side view seen from the direction 'c' of FIG. 3.

도 6은 도 3의 평면도이다.6 is a plan view of FIG. 3.

*도면중 주요부분에 관한 부호의 설명** Description of symbols on main parts of the drawings *

A - 시로코팬 100 - 주판A-Sirocco Fan 100-Abacus

200 - 블레이드 300 - 팁200-Blade 300-Tip

Claims (4)

축결합부가 형성되는 주판;An abacus on which the axial coupling part is formed; 상기 주판에 원주방향을 따라 등간격으로 형성되며 곡률을 가지는 다수의 블레이드; 및A plurality of blades formed in the main plate at equal intervals along the circumferential direction and having a curvature; And 상기 블레이드의 축방향 끝단이 곡률 중심이 있는 안쪽방향으로 절곡된 팁을 포함하는 것을 특징으로 하는 냉장고용 시로코팬.Sirocco fan for a refrigerator, characterized in that the axial end of the blade includes a tip bent inwardly with the center of curvature. 제 1항에 있어서,The method of claim 1, 상기 팁은 끝단으로 갈수록 얇아지도록 형성되는 것을 특징으로 하는 냉장고용 시로코팬.The tip is a sirocco fan for a refrigerator, characterized in that formed to become thinner toward the end. 제 2항에 있어서,3. The method of claim 2, 상기 블레이드와 팁 사이의 연결부위는 곡면이 형성된 것을 특징으로 하는 냉장고용 시로코팬.The connecting portion between the blade and the tip is a sirocco fan for a refrigerator, characterized in that the curved surface is formed. 제 1항 내지 제 3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 팁의 절곡각도는 블레이드를 기준으로 25~35도인 것을 특징으로 하는 냉장고용 시로코팬.The bending angle of the tip is a sirocco fan for a refrigerator, characterized in that 25 to 35 degrees based on the blade.
KR1020090004417A 2009-01-20 2009-01-20 Sirocco fan for refrigerator KR20100085235A (en)

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KR1020090004417A KR20100085235A (en) 2009-01-20 2009-01-20 Sirocco fan for refrigerator

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013162318A1 (en) * 2012-04-26 2013-10-31 Kim Ji Ha Swirl-type local ventilation apparatus comprising swirler
US9624932B2 (en) 2013-03-20 2017-04-18 Samsung Electronics Co., Ltd. Centrifugal fan and air conditioner having the same
KR20180122273A (en) * 2017-05-02 2018-11-12 엘지전자 주식회사 Local ventilation equipment and swirler therein
KR101972460B1 (en) * 2018-07-24 2019-04-25 양현대 diffuser with wind power generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013162318A1 (en) * 2012-04-26 2013-10-31 Kim Ji Ha Swirl-type local ventilation apparatus comprising swirler
US9624932B2 (en) 2013-03-20 2017-04-18 Samsung Electronics Co., Ltd. Centrifugal fan and air conditioner having the same
KR20180122273A (en) * 2017-05-02 2018-11-12 엘지전자 주식회사 Local ventilation equipment and swirler therein
KR101972460B1 (en) * 2018-07-24 2019-04-25 양현대 diffuser with wind power generator

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