KR20000015869U - Device for reducing noise for refrigerators - Google Patents

Device for reducing noise for refrigerators Download PDF

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Publication number
KR20000015869U
KR20000015869U KR2019990000568U KR19990000568U KR20000015869U KR 20000015869 U KR20000015869 U KR 20000015869U KR 2019990000568 U KR2019990000568 U KR 2019990000568U KR 19990000568 U KR19990000568 U KR 19990000568U KR 20000015869 U KR20000015869 U KR 20000015869U
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South Korea
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cold air
circulation fan
pressure
refrigerator
convex surface
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KR2019990000568U
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Korean (ko)
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KR200342141Y1 (en
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양재영
김종엽
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윤종용
삼성전자 주식회사
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Priority to KR20-1999-0000568U priority Critical patent/KR200342141Y1/en
Publication of KR20000015869U publication Critical patent/KR20000015869U/en
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Publication of KR200342141Y1 publication Critical patent/KR200342141Y1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

본 고안은 냉장고에 관한 것으로, 더욱 상세하게는 냉기를 강제 순환시키는 순환팬의 구동시 발생되는 유동소음을 저감시키는 소음감소장치에 관한 것이다.The present invention relates to a refrigerator, and more particularly, to a noise reduction device for reducing the flow noise generated when the circulation fan forcibly circulating cold air.

본 고안에 따른 냉장고의 소음감소장치는 순환팬의 전면부에 순환팬과 마주보는 볼록면으로 구성된 압력분산부가 마련되고, 이 압력분산부에는 볼록면의 표면으로부터 내곡된 다수의 오목부(dimple)가 형성되었다. 따라서, 순환팬에서 분출되는 냉기가 경사면을 이루는 압력분산부의 볼록면에 부딪치게 되어 유체의 압력에너지가 분산되게 되고, 볼록면의 표면에 형성된 다수의 오목부가 유체의 흐름을 교란시켜 압력의 분산효과를 더욱 높여주므로, 냉기의 순환시에 발생되는 소음 및 진동이 크게 감소되는 효과가 있다.The noise reduction device of the refrigerator according to the present invention is provided with a pressure distribution part composed of a convex surface facing the circulation fan at the front of the circulation fan, and the pressure distribution part has a plurality of recesses curved from the surface of the convex surface. Was formed. Therefore, the cold air ejected from the circulation fan hits the convex surface of the pressure dispersing portion forming the inclined surface, so that the pressure energy of the fluid is dispersed, and a plurality of concave portions formed on the surface of the convex surface disturb the flow of the fluid, thereby improving the pressure dispersion effect. Since it further increases, there is an effect that the noise and vibration generated during the circulation of cold air is greatly reduced.

Description

냉장고의 소음감소장치{Device for reducing noise for refrigerators}Device for reducing noise for refrigerators {Device for reducing noise for refrigerators}

본 고안은 냉장고에 관한 것으로, 더욱 상세하게는 냉기를 강제 순환시키는 순환팬의 구동시 발생되는 유동소음을 저감시키는 소음감소장치에 관한 것이다.The present invention relates to a refrigerator, and more particularly, to a noise reduction device for reducing the flow noise generated when the circulation fan forcibly circulating cold air.

일반적으로 냉장고는 내부에 냉동사이클의 구성요소가 설치되어 이로부터 발생되는 냉기를 저장실로 공급하여 각종 식품의 신선도가 장기간 유지될 수 있도록 한 가전제품이다.In general, a refrigerator is a home appliance installed with components of a refrigeration cycle therein to supply cold air generated from the refrigerator to a storage compartment so that freshness of various foods can be maintained for a long time.

이러한 종래의 냉장고는 도 1에 도시된 바와 같이, 본체(1)의 내부에 저장물이 저장되는 저장실(2)이 형성되고, 이 저장실(2)의 전면 개구부에는 저장실(2)을 개폐하는 도어(3)가 설치되어 있다.In the conventional refrigerator, as illustrated in FIG. 1, a storage compartment 2 in which a storage is stored is formed in the main body 1, and a door for opening and closing the storage compartment 2 in the front opening of the storage compartment 2. (3) is installed.

또한, 저장실(2)의 내측에 위치되는 후면 벽체에는 냉기를 생성하는 증발기(4)가 설치되어 있고, 증발기(4)의 상측에는 증발기를 거치면서 열교환이 된 냉기를 저장실(2)의 내부로 강제 순환시키는 순환팬(5)이 설치되어 있으며, 이 순환팬(5)에 의하여 강제 송풍되는 냉기의 흐름을 안내하는 냉기 안내덕트(6)가 형성되어 있다. 또한, 냉기 안내덕트(6)의 흡입유로에는 냉기흡입구(8)가 형성되고, 토출유로에는 다수의 냉기 토출구(9)가 형성되어 있다.In addition, an evaporator 4 for generating cold air is provided on the rear wall located inside the storage compartment 2, and the cold air that has undergone heat exchange while passing through the evaporator is installed inside the storage compartment 2 above the evaporator 4. A circulation fan 5 for forced circulation is provided, and a cold air guide duct 6 for guiding the flow of cold air forcedly blown by the circulation fan 5 is formed. In addition, a cold air suction port 8 is formed in the suction flow path of the cold air guide duct 6, and a plurality of cold air discharge ports 9 are formed in the discharge flow path.

이와 같이 구성된 종래 냉장고는 순환팬(5)이 구동되면, 저장실(2) 내부의 냉기가 냉기 안내덕트의 냉기 흡입구(8)를 통해 증발기(4) 쪽으로 유입되어 증발기(4)와 열교환을 한 후, 순환팬(5)의 송풍력에 의해 냉기 토출구(9)를 통해 다시 저장실(2)로 공급되는 과정이 반복되면서 냉기의 순환이 이루어지게 된다.In the conventional refrigerator configured as described above, when the circulation fan 5 is driven, cold air inside the storage compartment 2 flows into the evaporator 4 through the cold air inlet 8 of the cold air guide duct to exchange heat with the evaporator 4. The circulation of the cold air is made by repeating the process of supplying the cold air to the storage chamber 2 again through the cold air discharge port 9 by the blowing force of the circulation fan 5.

이때, 순환팬(5)에서 토출되는 냉기는 저장실(2)의 내측면을 형성하는 내측판(7)의 내면에 강하게 분출이 된 후, 냉기 안내덕트(6)로 퍼져 냉기 토출구(9)를 통해 저장실(11)로 분출되게 된다.At this time, the cold air discharged from the circulation fan 5 is strongly ejected to the inner surface of the inner plate 7 forming the inner surface of the storage chamber 2, and then spread to the cold air guide duct 6 to open the cold air discharge port 9. It is ejected to the storage compartment 11 through.

그러나, 이러한 종래의 냉장고는 송풍팬(5)에서 분출되는 냉기가 내측판(7)의 내면을 직접 때려주기 때문에 냉기의 유동소음과 내측판(7)의 진동에 따른 소음이 큰 문제가 있었다.However, in the conventional refrigerator, since the cold air blown from the blower fan 5 directly hits the inner surface of the inner plate 7, there is a large problem of noise due to the flow noise of the cold air and the vibration of the inner plate 7.

즉, 유체의 압력에너지가 순환팬(5)의 전면에 위치된 내측판(7)에 직접 작용되게 되고, 유체의 유동방향이 급격하게 전환되게 되므로, 유동소음이 커지고 내측판(7)의 진동이 발생되었다.That is, the pressure energy of the fluid is directly acted on the inner plate 7 located on the front of the circulation fan 5, the flow direction of the fluid is rapidly switched, so that the flow noise is increased and the vibration of the inner plate 7 This occurred.

본 고안은 이와 같은 문제점을 해결하기 위한 것으로, 본 고안의 목적은 순환팬에서 토출되는 냉기가 내측판 또는 순환팬의 전면에 위치된 어떤 물체에 부딪칠 때, 유체의 압력이 분산될 수 있게 함으로써, 냉기의 유동소음 및 내부 진동 등을 줄이는 냉장고의 소음감소장치를 제공하는 것이다.The present invention is to solve such a problem, an object of the present invention is to allow the pressure of the fluid to be dispersed when the cold discharged from the circulation fan hits the inner plate or any object located in front of the circulation fan To provide a noise reduction device of the refrigerator to reduce the flow noise and internal vibration of the cold air.

도 1은 종래 냉장고의 개략적인 내부구성 및 냉기 흐름을 보인 단면도이다.1 is a cross-sectional view showing a schematic internal configuration and a cold air flow of a conventional refrigerator.

도 2는 본 고안에 따른 소음감소장치가 적용된 냉장고의 전체적인 내부구조를 보인 단면도이다.2 is a cross-sectional view showing the overall internal structure of the refrigerator to which the noise reduction device according to the present invention is applied.

도 3은 본 고안에 따른 소음감소장치의 구성을 보인 단면도이다.3 is a cross-sectional view showing the configuration of a noise reduction device according to the present invention.

도 4는 본 고안에 따른 압력분산부의 구성을 보인 사시도이다.Figure 4 is a perspective view showing the configuration of the pressure distribution unit according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 본체,11: 저장실,10: main body, 11: storage room,

11a: 냉동실,11b: 냉장실,11a: freezer compartment, 11b: refrigerator compartment,

12: 구획벽,13: 냉동실도어,12: partition wall, 13: freezer door,

14: 냉장실도어,16: 증발기,14: refrigerator door, 16: evaporator,

17: 냉각실,19: 냉기안내덕트,17: cooling chamber, 19: cold air duct,

20: 냉기 토출구,21: 냉기 흡입구,20: cold air outlet, 21: cold air inlet,

22: 내측판,30: 순환팬,22: inner plate, 30: circulation fan,

31: 구동모터,40: 압력분산부,31: drive motor, 40: pressure distribution unit,

41: 오목부.41: recessed part.

상기의 목적을 달성하기 위한 본 고안은, 본체의 내부에 형성되는 저장실과, 상기 저장실로 공급되는 냉기를 생성하도록 상기 저장실의 후면부에 설치되는 증발기와, 상기 저장실의 공기가 상기 증발기와 열교환을 하도록 상기 저장실의 내부 공기를 강제 순환시키는 순환팬과, 상기 순환팬의 구동에 의해 순환되는 냉기를 상기 저장실로 안내하거나 상기 저장실의 냉기를 상기 증발기가 설치되는 냉각실 쪽으로 안내하는 냉기 안내덕트를 구비하는 냉장고에 있어서,The present invention for achieving the above object, the storage chamber formed in the interior of the main body, the evaporator is installed on the rear portion of the storage chamber to generate cold air supplied to the storage chamber, the air in the storage chamber to exchange heat with the evaporator And a circulation fan for forcibly circulating the internal air of the storage chamber, and a cold air duct for guiding the cold air circulated by the driving of the circulation fan to the storage chamber or guiding the cold air of the storage chamber to the cooling chamber in which the evaporator is installed. In the refrigerator,

상기 순환팬의 전면부에는 상기 순환팬의 구동에 의해 분출되는 냉기의 압력에너지를 분산시켜 냉기의 유동소음을 줄일 수 있도록 상기 순환팬과 마주보는 볼록면으로 형성된 압력분산부가 구비된 것이며, 상기 압력분산부의 압력분산효과가 커지도록 상기 볼록면의 표면에는 내곡되게 형성된 다수의 오목부가 마련된 것을 특징으로 하는 구성이다.The front portion of the circulation fan is provided with a pressure distribution portion formed with a convex surface facing the circulation fan to reduce the flow noise of the cold air by dispersing the pressure energy of the cold air ejected by the driving of the circulation fan, the pressure The convex surface has a plurality of concave portions formed to be curved so that the pressure dispersion effect of the dispersion portion is increased.

이하에서는 본 고안에 따른 바람직한 실시 예를 첨부 도면을 참조하여 상세히 설명한다. 도 2는 본 고안에 따른 소음감소장치가 적용된 냉장고의 전체적인 내부구조를 보인 단면도이고, 도 3은 본 고안에 따른 소음감소장치의 구성을 보인 단면도이며, 도 4는 본 고안에 따른 압력분산부의 구성을 보인 사시도이다.Hereinafter, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in detail. Figure 2 is a cross-sectional view showing the overall internal structure of the refrigerator to which the noise reduction device according to the present invention is applied, Figure 3 is a cross-sectional view showing the configuration of the noise reduction device according to the present invention, Figure 4 is a configuration of a pressure distribution unit according to the present invention Is a perspective view.

본 고안에 따른 냉장고는 이에 도시된 바와 같이, 내부에 음식물이 저장되는 저장실(11)이 구비된 본체(10)가 마련되고, 이 저장실(11)은 전면부가 개구되게 마련된다. 또, 저장실(11)은 내부 공간을 구획하는 구획벽(12)에 의해 상부 냉동실(11a)과 하부 냉장실(11b)로 구획이 되며, 냉동실(11a)과 냉장실(11b)의 전면 개방부에는 이들을 개폐하는 냉동실도어(13)와 냉장실도어(14)가 설치된다.As shown in the refrigerator, a refrigerator 10 according to the present invention is provided with a main body 10 having a storage compartment 11 for storing food therein, and the storage compartment 11 is provided with an open front portion. In addition, the storage compartment 11 is partitioned into the upper freezer compartment 11a and the lower refrigerating compartment 11b by the partition wall 12 which partitions the internal space, and the front compartment openings of the freezer compartment 11a and the refrigerating compartment 11b are provided. The freezing chamber door 13 and the refrigerating chamber door 14 which open and close are provided.

또한, 냉동실(11a)과 냉장실(11b)에는 저장물의 적재가 용이하도록 복층으로 구성된 선반(15)이 설치되고, 냉동실도어(13)와 냉장실도어(14)의 내측면에도 크기가 작은 식품과 음료수 등을 꽂아 보관할 수 있도록 다단으로 구성된 도어선반(미도시)이 마련된다.In addition, the freezer compartment (11a) and the refrigerating chamber (11b) is provided with a shelf 15 consisting of a multi-layer to facilitate the storage of the stored matter, the food and beverages of small size on the inner surface of the freezer door 13 and the refrigerating chamber door (14). A multi-stage door shelf (not shown) is provided to store the back.

그리고, 냉동실(11a)과 냉장실(11b)의 후면 벽체에는 냉기를 생성하는 증발기(16)가 각각 설치되며, 각 증발기(16)의 상측에는 냉동실 및 냉장실의 냉기를 강제 순환시키는 순환팬(30)이 설치된다.And, the rear wall of the freezer compartment (11a) and the refrigerating chamber (11b) is provided with an evaporator 16 for generating cold air, respectively, and the circulation fan 30 for forcibly circulating the cold air of the freezer compartment and the refrigerating compartment above each evaporator (16). This is installed.

또한, 각 저장실(11)의 후면에는 순환팬(20)의 구동에 의해 순환되는 냉기의 흐름을 안내할 수 있도록 냉기 안내덕트(19)가 설치되고, 이 안내덕트(19)에는 다수의 냉기토출구(20)가 형성되며, 냉동실과 냉장실의 후면 일측에는 이들을 순회하는 냉기가 다시 증발기(16)가 설치된 냉각실(17) 쪽으로 유입될 수 있도록 냉기흡입구(21)가 형성된다.In addition, a cold air guide duct 19 is installed at the rear of each storage chamber 11 to guide the flow of cold air circulated by the driving of the circulation fan 20, and the plurality of cold air discharge outlets are provided at the guide duct 19. 20 is formed, and the cold air suction port 21 is formed at one side of the rear side of the freezing compartment and the refrigerating compartment so that the cold air circulating them may flow back into the cooling chamber 17 in which the evaporator 16 is installed.

한편, 본 고안에 따른 냉장고는 냉동실(11a)과 냉장실(11b)을 순회하는 냉기의 흐름을 원활하게 할뿐만 아니라, 냉기의 유동시에 발생되는 유동소음 및 진동이 감소될 수 있도록 순환팬(30)의 전면부에 냉기의 압력을 분산시키는 압력분산부(40)가 마련된다.(본 실시 예는 냉동실의 냉기순환 구조와 냉장실의 냉기 순환 구조가 유사하며, 그에 따른 작용효과가 유사하므로, 이하에서는 냉동실과 냉장실을 저장실로 통일하여 설명한다.)Meanwhile, the refrigerator according to the present invention not only facilitates the flow of cold air circulating in the freezing compartment 11a and the refrigerating compartment 11b, but also the circulation fan 30 so that the flow noise and vibration generated during the flow of the cold air can be reduced. A pressure distribution unit 40 for dispersing the pressure of cold air is provided on the front side of the present invention. (In this embodiment, since the cold air circulation structure of the freezer compartment and the cold air circulation structure of the refrigerating compartment are similar, and thus the effect thereof is similar, The freezer compartment and the refrigerating compartment are collectively described as a storage compartment.)

도 3과 도 4를 참조하여 이를 좀더 상세히 설명하면, 압력분산부(40)는 일반적으로 축류팬으로 구성되는 순환팬(30)을 거친 유체의 유동특성을 감안하여 순환팬(30)의 전면부에 설치된다.Referring to FIG. 3 and FIG. 4, the pressure distribution unit 40 is a front part of the circulation fan 30 in consideration of the flow characteristics of the fluid passing through the circulation fan 30 which is generally composed of an axial fan. Is installed on.

본 실시 예에서는 순환팬(30)의 냉기 토출 방향이 증발기(16)가 설치된 냉각실(17) 쪽에서 저장실의 내측판(22) 이면 쪽으로 흐르도록 되어 있기 때문에, 압력분산부(40)는 내측판(22)과 일체로 형성된다.In this embodiment, since the cold air discharge direction of the circulation fan 30 flows from the side of the cooling chamber 17 in which the evaporator 16 is installed to the back side of the inner plate 22 of the storage chamber, the pressure dispersing portion 40 is the inner plate. It is formed integrally with 22.

이 압력분산부(40)는 순환팬(30)에서 분출되는 냉기의 압력에너지가 용이하게 분산될 수 있도록 순환팬(30)과 마주보는 볼록면으로 구성되며, 이 볼록면의 직경은 대체로 순환팬(30)의 직경과 유사하게 형성된다. 즉, 순환팬(30)에서 토출되는 유체가 경사면을 이루게 되는 볼록면의 외면에 부딪치게 됨으로써, 저항이 크게 감소되면서 주변으로 분산될 수 있게 된다.The pressure dispersing portion 40 is composed of a convex surface facing the circulation fan 30 so that the pressure energy of the cold air ejected from the circulation fan 30 can be easily dispersed, and the diameter of the convex surface is generally a circulation fan. It is formed similar to the diameter of 30. That is, since the fluid discharged from the circulation fan 30 hits the outer surface of the convex surface forming the inclined surface, the resistance is greatly reduced and can be distributed to the surroundings.

또한, 압력분산부(40)의 볼록면에는 이와 같은 압력분산효과가 더욱 높아질 수 있도록 볼록면의 표면에서 내곡되게 형성되어, 마치 골프공의 표면에 형성된 것과 유사한 다수의 오목부(41,dimple)가 형성된다. 이 오목부(41)는 볼록면의 표면에서 분산되는 유체의 흐름을 교란시킴으로써 압력분산효과를 더욱 높여주게 된다.In addition, the convex surface of the pressure dispersing portion 40 is formed to be curved at the surface of the convex surface such that the pressure dispersing effect can be further increased, and thus, a plurality of concave portions 41 and dimples similar to those formed on the surface of the golf ball. Is formed. The concave portion 41 further enhances the pressure dispersion effect by disturbing the flow of fluid dispersed on the surface of the convex surface.

다음은 이와 같이 구성된 본 고안에 따른 냉장고의 냉기 순환동작을 설명한다.Next will be described the cold air circulation operation of the refrigerator according to the present invention configured as described above.

순환팬을 구동시키는 구동모터(31)가 회전되면, 저장실(11)의 냉기는 냉기 안내덕트(19)의 냉기흡입구(21)를 통해 증발기(16)가 설치된 냉각실(17)로 유입되고, 냉각실로 유입된 냉기는 증발기(16)와 열교환을 하면서, 더 차가운 냉기로 변하게 된다.When the driving motor 31 for driving the circulation fan is rotated, the cold air of the storage chamber 11 flows into the cooling chamber 17 in which the evaporator 16 is installed through the cold air inlet 21 of the cold air duct 19. The cold air introduced into the cooling chamber is changed to cooler cold while exchanging heat with the evaporator 16.

증발기(16)에서 열교환이 된 냉기는 순환팬(30)의 구동에 의해 냉기 안내덕트(19)를 따라 흐르게 되고, 냉기토출구(20)를 통해 다시 저장실(11)로 토출이 됨으로써 냉기의 순환이 이루어지게 된다.The cold air that has been heat-exchanged in the evaporator 16 flows along the cold air guide duct 19 by driving the circulation fan 30, and is discharged back into the storage chamber 11 through the cold air outlet 20 so that circulation of the cold air is performed. Will be done.

이때, 순환팬(30)에서 분출되는 냉기는 전면에 설치된 압력분산부(40)의 표면에 부딪치게 되고, 유체의 압력에너지가 크게 감소되게 된다. 즉, 유동하는 유체가 경사면을 이루는 압력분산부(40)의 볼록면에 부딪치게 되므로, 유동저항이 크게 감소되게 된다. 또한, 볼록면의 표면에 형성된 다수의 오목부(41)가 압력분산부(40)의 표면을 흐르는 유체의 흐름을 교란시키게 되므로 압력의 분산효과는 더욱 커지게 된다.At this time, the cold air ejected from the circulation fan 30 hits the surface of the pressure distribution unit 40 installed on the front surface, and the pressure energy of the fluid is greatly reduced. That is, since the flowing fluid collides with the convex surface of the pressure distribution unit 40 forming the inclined surface, the flow resistance is greatly reduced. In addition, since a plurality of concave portions 41 formed on the surface of the convex surface disturb the flow of the fluid flowing through the surface of the pressure dispersing portion 40, the pressure dispersing effect is further increased.

결국, 유체의 압력이 분산되고, 유동저항이 크게 감소됨으로써 냉장고의 냉기순환시에 발생되는 유동소음 및 진동 등이 방지 되게 된다.As a result, the pressure of the fluid is dispersed, and the flow resistance is greatly reduced, thereby preventing the noise and vibration generated during cold circulation of the refrigerator.

실제로, 이와 같은 압력분산부(40)가 설치된 냉장고의 냉기 유동소음을 측정해 보았다.In fact, the cold air flow noise of the refrigerator in which the pressure distribution unit 40 is installed was measured.

실험 방법으로는 외부 소음이 차단된 밀폐실에 본 고안에 따른 압력분산부가 설치된 냉장고와 일반냉장고를 각각 설치하고, 이들 냉장고와 1M 떨어진 거리에 소음 측정용 마이크로폰(micro-phone)을 설치한 후, 냉장고를 가동시켰다.As an experimental method, after installing a refrigerator and a general refrigerator each equipped with a pressure distribution unit according to the present invention in a sealed room where external noise is blocked, and installing a microphone for noise measurement at a distance of 1M from the refrigerator, The refrigerator was started.

이때, 압력분산부(40)가 설치되지 않은 종래의 냉장고의 소음이 30.5㏈ 내외로 측정된 반면, 본 고안에 따른 압력분산부가 설치된 냉장고는 28.5㏈내외로 측정되어, 실제로 2㏈정도 내외의 소음 감소효과를 가져올 수 있었다.At this time, the noise of the conventional refrigerator without the pressure distribution unit 40 is measured to be around 30.5㏈, while the refrigerator equipped with the pressure distribution unit according to the present invention is measured to be about 28.5㏈, and actually around 2㏈ of noise. It could have a reduction effect.

이상에서 상세히 설명한 바와 같이, 본 고안에 따른 냉장고의 소음감소장치는 순환팬의 전면부에 순환팬과 마주보는 볼록면으로 구성된 압력분산부가 마련되고, 이 압력분산부에는 볼록면의 표면으로부터 내곡된 다수의 오목부(dimple)가 형성되었다. 따라서, 순환팬에서 분출되는 냉기가 경사면을 이루는 압력분산부의 볼록면에 부딪치게 되어 유체의 압력에너지가 분산되게 되고, 볼록면의 표면에 형성된 다수의 오목부가 유체의 흐름을 교란시켜 압력의 분산효과를 더욱 높여주므로, 냉기의 순환시에 발생되는 소음 및 진동이 크게 감소되는 효과가 있다.As described in detail above, the noise reduction device of the refrigerator according to the present invention is provided with a pressure distribution unit consisting of a convex surface facing the circulation fan in the front portion of the circulation fan, the pressure dispersion portion is curved from the surface of the convex surface Multiple dimples were formed. Therefore, the cold air ejected from the circulation fan hits the convex surface of the pressure dispersing portion forming the inclined surface, so that the pressure energy of the fluid is dispersed, and a plurality of concave portions formed on the surface of the convex surface disturb the flow of the fluid, thereby improving the pressure dispersion effect. Since it further increases, there is an effect that the noise and vibration generated during the circulation of cold air is greatly reduced.

Claims (2)

본체의 내부에 형성되는 저장실과, 상기 저장실로 공급되는 냉기를 생성하도록 상기 저장실의 후면부에 설치되는 증발기와, 상기 저장실의 공기가 상기 증발기와 열교환을 하도록 상기 저장실의 내부 공기를 강제 순환시키는 순환팬과, 상기 순환팬의 구동에 의해 순환되는 냉기를 상기 저장실로 안내하거나 상기 저장실의 냉기를 상기 증발기가 설치되는 냉각실 쪽으로 안내하는 냉기 안내덕트를 구비하는 냉장고에 있어서,A storage chamber formed inside the main body, an evaporator provided at a rear portion of the storage chamber to generate cold air supplied to the storage chamber, and a circulation fan for forced circulation of the internal air of the storage chamber so that the air in the storage chamber exchanges heat with the evaporator. And a cold air duct for guiding cold air circulated by the driving of the circulation fan to the storage compartment or guiding the cold air of the storage compartment to the cooling chamber in which the evaporator is installed. 상기 순환팬(30)의 전면부에는 상기 순환팬의 구동에 의해 분출되는 냉기의 압력에너지를 분산시켜 냉기의 유동소음을 줄일 수 있도록 상기 순환팬(30)과 마주보는 볼록면으로 형성된 압력분산부(40)가 구비된 것을 특징으로 하는 냉장고의 소음감소장치.The pressure dispersing portion formed in the convex surface facing the circulation fan 30 to disperse the pressure energy of the cold air ejected by the driving of the circulation fan in the front portion of the circulation fan 30 to reduce the flow noise of the cold air Noise reduction device of the refrigerator, characterized in that 40 is provided. 제 1항에 있어서,The method of claim 1, 상기 압력분산부(40)의 압력분산효과가 커지도록 상기 볼록면의 표면에는 내곡되게 형성된 다수의 오목부(41)가 마련된 것을 특징으로 하는 냉장고의 소음감소장치.The noise reduction device of the refrigerator, characterized in that a plurality of concave portions 41 are formed on the surface of the convex surface so as to increase the pressure dispersion effect of the pressure distribution unit 40.
KR20-1999-0000568U 1999-01-19 1999-01-19 Device for reducing noise for refrigerators KR200342141Y1 (en)

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KR100850927B1 (en) * 2006-12-13 2008-08-08 주식회사 대우일렉트로닉스 A cooling air circulation apparatus for refrigerator

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KR101712201B1 (en) * 2010-07-01 2017-03-03 엘지전자 주식회사 Blowing apparatus for refirgerator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100850927B1 (en) * 2006-12-13 2008-08-08 주식회사 대우일렉트로닉스 A cooling air circulation apparatus for refrigerator

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