KR101235196B1 - Refrigerator - Google Patents

Refrigerator Download PDF

Info

Publication number
KR101235196B1
KR101235196B1 KR1020060039964A KR20060039964A KR101235196B1 KR 101235196 B1 KR101235196 B1 KR 101235196B1 KR 1020060039964 A KR1020060039964 A KR 1020060039964A KR 20060039964 A KR20060039964 A KR 20060039964A KR 101235196 B1 KR101235196 B1 KR 101235196B1
Authority
KR
South Korea
Prior art keywords
cold air
bell mouse
refrigerator
fan motor
fan
Prior art date
Application number
KR1020060039964A
Other languages
Korean (ko)
Other versions
KR20070107447A (en
Inventor
김현주
신대식
오종학
Original Assignee
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR1020060039964A priority Critical patent/KR101235196B1/en
Publication of KR20070107447A publication Critical patent/KR20070107447A/en
Application granted granted Critical
Publication of KR101235196B1 publication Critical patent/KR101235196B1/en

Links

Images

Classifications

    • 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
    • F25D17/067—Evaporator fan units
    • 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
    • F04D29/66—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
    • 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
    • F25D17/062—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 in household refrigerators
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681—Details thereof

Abstract

본 발명은 벨마우스를 통과하는 냉기의 유동을 원활하게 하여 송풍팬의 동작소음을 저감할 수 있는 구조를 구비한 냉장고에 관한 것이다.The present invention relates to a refrigerator having a structure capable of smoothly flowing cold air passing through a bell mouse to reduce operating noise of a blowing fan.

본 발명에 따른 냉장고는 냉기를 안내하기 위한 벨마우스와, 상기 벨마우스에 마련된 냉기공급장치를 포함하는 냉장고에 있어서, 상기 냉기공급장치는 냉기를 송풍하기 위한 송풍팬과, 상기 송풍팬에 구동력을 전달하는 팬모터와, 상기 팬모터를 지지하는 지지부를 포함하되, 상기 지지부는 상기 벨마우스의 내측단부에서 이격되어 상기 팬모터측으로 돌출되어 마련되어 송풍팬의 작동에 의해 발생되는 소음을 저감할 수 있는 효과가 있다.A refrigerator according to the present invention includes a bell mouse for guiding cold air, and a refrigerator including a cold air supply device provided in the bell mouse, wherein the cold air supply device includes a blower fan for blowing cold air, and a driving force to the blower fan. And a fan motor for transmitting and a support part for supporting the fan motor, wherein the support part is spaced apart from the inner end of the bell mouse to protrude toward the fan motor to reduce noise generated by the operation of the blower fan. It works.

Description

냉장고{Refrigerator}Refrigerator {Refrigerator}

도 1은 종래 기술에 따른 냉장고에 포함되는 송풍팬의 분해사시도이다.1 is an exploded perspective view of a blowing fan included in a refrigerator according to the prior art.

도 2는 본 발명에 따른 냉장고의 구성을 보인 단면도이다.2 is a cross-sectional view showing the configuration of a refrigerator according to the present invention.

도 3은 본 발명에 따른 냉장고에 포함되는 냉기순환장치의 분해사시도이다.3 is an exploded perspective view of a cold air circulation device included in a refrigerator according to the present invention.

도 4는 도 2의 A-A'방향의 단면사시도이다.4 is a cross-sectional perspective view taken along the line AA ′ of FIG. 2.

도 5는 본발명에 따른 냉장고에 포함되는 냉기공급장치의 풍량 및 소음 실험결과를 나타내는 표이다.5 is a table showing the results of the air volume and noise experiments of the cold air supply apparatus included in the refrigerator according to the present invention.

도 6은 본발명의 다른 실시예에 따른 벨마우스와 지지부의 단면사시도이다.Figure 6 is a cross-sectional perspective view of the bell mouse and the support according to another embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명 * Description of the Related Art [0002]

10 : 본체, 17 : 냉각실,10: main body, 17: cooling chamber,

20 : 유로구획판, 21 : 개구,20: euro block, 21: opening,

22 : 벨마우스, 22a : 내측단부22: Bell mouse, 22a: the inner end

31,34 : 냉기토출구, 40 : 냉기순환장치, 31,34: cold air outlet, 40: cold air circulation device,

41 : 송풍팬, 42 : 팬모터,41: blower fan, 42: fan motor,

43 : 지지부, 43a : 지지다리.43: support part, 43a: support leg.

본 발명은 냉장고에 관한 것으로, 더욱 상세하게는 저장실내로 냉기를 공급하기 위해 마련되는 냉기공급장치를 구비하는 냉장고에 관한 것이다.The present invention relates to a refrigerator, and more particularly, to a refrigerator having a cold air supply device provided for supplying cold air into a storage compartment.

일반적으로 냉장고는 압축기, 응축기, 팽창밸브 및 증발기를 구비하여 냉매의 상변화에 따른 열의 이동을 이용해서 냉기를 생성하고, 이러한 냉기를 일정한 유로를 통해 식품이 저장된 저장실로 공급함으로써 각종 식품의 신선도를 장기간 유지할 수 있는 장치이다.In general, a refrigerator includes a compressor, a condenser, an expansion valve, and an evaporator to generate cold air by using heat transfer according to a phase change of a refrigerant, and supply the fresh air to a storage compartment in which food is stored through a predetermined flow path to provide freshness of various foods. It is a device that can be maintained for a long time.

일반적인 냉장고의 구조는 증발기에 의해 열교환된 냉기가 직접 유입되는 냉동실과, 냉동실의 냉기가 유입되는 냉장실로 구획되며, 냉장실의 배면 하부에는 압축기 및 응축기가 설치된 기계실이 구비되어 있다.The structure of a general refrigerator is divided into a freezer compartment into which cold air heat-exchanged by an evaporator is directly introduced, and a refrigerating compartment into which cold air of a freezer compartment is introduced, and a machine room provided with a compressor and a condenser is provided at the bottom of the refrigerating compartment.

냉동실의 후방 내측면에는 냉기를 발생시키는 증발기가 마련되고, 냉동실의 후면에는 증발기에 의해 생성된 냉기가 저장실로 공급될 수 있도록 송풍팬이 냉기토출구에 마련된다.An evaporator for generating cold air is provided at the rear inner side of the freezing chamber, and a blowing fan is provided at the cold air discharge outlet so that cold air generated by the evaporator can be supplied to the storage compartment at the rear side of the freezing chamber.

증발기에 의해 발생된 냉기를 송풍하는 송풍팬(1)은 도1에 도시된 바와 같이 지지부에 의해 지지되는 팬모터(2)와 축결합되어 벨마우스(3)에 마련된다.The blowing fan 1 for blowing cold air generated by the evaporator is axially coupled to the fan motor 2 supported by the support part as shown in FIG. 1 and provided in the bell mouse 3.

이러한 냉장고에 장착되는 송풍팬(1)과 벨마우스(3)와의 사이는 일반적으로 약 4~6mm 이격되어 형성되는데, 일체로 플라스틱 사출성형된 벨마우스(3)와 팬모터(2)를 지지하기 위한 지지부(4)는 금형상의 언더컷을 방지하기 위해 지지부(4)가 벨마우스(3)의 내측선단(3a)과 일치되게 형성되도록 한다. 그로 인해 송풍팬(1)의 날개선단(1a)과 지지부(4)는 서로 근접하게 되어 송풍팬(1)의 회전시 날개선단(1a) 에서 발생하는 강한 와류성분이 지지부(4)와 간섭되는 현상이 발생된다. 결국 송풍팬(1)의 각 날개가 지지부(4)에 근접하게 지나가면서 발생되는 BPF(blade passing frequency : 깃의 통과주파수, 즉 깃이 특정지점은 통과하는 주파수)가 큰 피크를 가지게 되어 송풍팬(1)의 동작소음이 높아지게 되는 문제점이 있다.The blower fan (1) and the bell mouse (3) mounted in the refrigerator are generally spaced apart from each other by about 4 to 6 mm, and integrally support the plastic injection molded bell mouse (3) and the fan motor (2). The support 4 for this purpose allows the support 4 to be formed to coincide with the inner tip 3a of the bell mouse 3 to prevent undercut on the mold. Therefore, the wing tip 1a and the support part 4 of the blower fan 1 are close to each other so that a strong vortex component generated at the wing tip 1a when the blower fan 1 rotates interferes with the supporter 4. Phenomenon occurs. As a result, the blade passing frequency (BPF) generated by passing each blade of the blowing fan 1 close to the support part 4, that is, the frequency at which the feather passes through a specific point, has a large peak. There is a problem that the operation noise of (1) becomes high.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 벨마우스를 통과하는 냉기의 유동을 원활하게 하여 송풍팬의 동작소음을 저감할 수 있는 구조를 구비한 냉장고을 제공하는 것이다.The present invention is to solve the above problems, an object of the present invention is to provide a refrigerator having a structure that can reduce the operation noise of the blowing fan by smoothly flowing the cold air passing through the bell mouse.

이와 같은 목적을 달성하기 위한 본 발명은, 냉기를 안내하기 위한 벨마우스와, 상기 벨마우스에 마련된 냉기공급장치를 포함하는 냉장고에 있어서, 상기 냉기공급장치는 냉기를 송풍하기 위한 송풍팬과, 상기 송풍팬에 구동력을 전달하는 팬모터와, 상기 팬모터를 지지하는 지지부를 포함하되, 상기 지지부는 상기 벨마우스의 내측단부에서 소정거리 이격되어 형성된 것을 특징으로 한다.In order to achieve the above object, the present invention provides a refrigerator comprising a bell mouse for guiding cold air and a cold air supply device provided in the bell mouse, wherein the cold air supply device includes a blower fan for blowing cold air, and A fan motor for transmitting a driving force to the blowing fan, and a support for supporting the fan motor, wherein the support is characterized in that formed at a predetermined distance from the inner end of the bell mouse.

또한, 상기 지지부는 상기 벨마우스의 내측단부에서 이격되어 상기 팬모터측으로 돌출되어 형성된 복수의 지지다리와, 상기 복수의 지지다리가 상호 연결되며 상기 팬모터가 장착되는 팬모터장착부를 포함하는 것을 특징으로 한다.The support part may include a plurality of support legs spaced apart from the inner end of the bell mouse and protruded toward the fan motor, and a fan motor mounting part to which the plurality of support legs are interconnected and the fan motor is mounted. It is done.

또한, 상기 복수의 지지다리의 일단은 상기 벨마우스로부터 2mm~ 6mm 반경방향 외측으로 이격되어 형성된 것을 특징으로 한다.In addition, one end of the plurality of support legs is characterized in that formed spaced apart from the bell mouse 2mm ~ 6mm radially outward.

또한, 상기 벨마우스는 언더컷 방지를 위한 홈이 형성된 것을 특징으로 한 다.In addition, the bell mouse is characterized in that a groove for preventing undercut is formed.

또한, 상기 벨마우스와 상기 지지부는 일체로 사출성형되는 것을 특징으로 한다.In addition, the bell mouse and the support is characterized in that the injection molding integrally.

이하에서는 본 발명의 바람직한 하나의 실시예를 도면을 참조하여 상세히 설명한다. Hereinafter, one preferred embodiment of the present invention will be described in detail with reference to the drawings.

도 2는 본 발명에 따른 냉장고의 구성을 보인 단면도이다.2 is a cross-sectional view showing the configuration of a refrigerator according to the present invention.

본 발명에 따른 냉장고는 도 2에 도시한 바와 같이, 내부에 저장실(12,13)이 형성되며 전면이 개방된 본체(10)를 구비하고, 본체(10)의 내부의 저장실(12,13)은 중간벽(11)에 의해 상호 구획된 상부의 냉동실(12)과 하부의 냉장실(13)을 포함한다. 본체(10)의 전면에는 냉동실(12)과 냉장실(13)을 각각 개폐하기 위한 냉동실도어(14)와 냉장실도어(15)가 설치된다.As shown in FIG. 2, the refrigerator according to the present invention has a storage compartment 12 and 13 formed therein and includes a main body 10 having an open front surface, and a storage compartment 12 and 13 in the interior of the main body 10. Includes an upper freezing compartment 12 and a lower refrigerating compartment 13 which are mutually partitioned by an intermediate wall 11. The front surface of the main body 10 is provided with a freezing chamber door 14 and a refrigerating chamber door 15 for opening and closing the freezing chamber 12 and the refrigerating chamber 13, respectively.

냉동실(12)의 내측 후방에는 유로구획판(20)에 의해 구획된 냉각실(17)이 마련되고, 냉각실(17) 내에는 냉기의 생성을 위한 증발기(18)가 설치된다. 또 냉동실(12)의 내측 후방에는 유로구획판(20)과 소정간격 이격되어 냉동실(12)의 냉기공급유로(19)를 형성하며 다수의 냉기토출구(31)를 갖춘 냉동실 내측패널(30)이 설치된다. 유로구획판(20)에는 상부에 개구(21)가 형성되며, 유로구획판(20)의 개구(21)의 외주부에는 냉각실(17)로부터 유입되는 냉기를 안내하기 위한 벨마우스(22)가 마련된다. 또한 벨마우스(22)측에는 냉각실(17)의 공기를 냉동실(12)의 냉기공급유로(19)로 송풍하여 냉기의 순환이 이루어지도록 하는 냉기순환장치(40)가 설치된다.A cooling chamber 17 partitioned by the flow path partition plate 20 is provided inside the freezing chamber 12, and an evaporator 18 for generating cold air is provided in the cooling chamber 17. In addition, a freezing chamber inner panel 30 having a plurality of cold air outlets 31 is formed at the inner rear of the freezing chamber 12 to be spaced apart from the flow path partition plate 20 at a predetermined interval to form a cold air supply passage 19 of the freezing chamber 12. Is installed. An opening 21 is formed in an upper portion of the flow path partition plate 20, and a bell mouse 22 for guiding cold air introduced from the cooling chamber 17 is provided at an outer circumferential portion of the opening 21 of the flow path partition plate 20. Prepared. In addition, the bell mouse 22 side is provided with a cold air circulation device 40 for blowing air from the cooling chamber 17 to the cold air supply passage 19 of the freezing chamber 12 to circulate the cold air.

냉장실(13) 내측 후방에는 냉장실 냉기공급유로(32)를 형성하도록 후벽(33)과 소정간격 이격되며 다수의 냉기토출구(34)가 형성된 냉장실 내측패널(35)이 설치된다. 그리고 냉동실 냉기공급유로(19)의 하단과 냉장실 냉기공급유로(32)의 상단은 중간벽(11)에 형성된 연결유로(36)를 통해 연결된다. 또 중간벽(11) 내에는 냉동실(12) 및 냉장실(13) 내부의 공기가 냉각실(17) 쪽으로 복귀하도록 안내하는 복귀유로(37)가 형성된다.Inside the refrigerating chamber 13, a refrigerating chamber inner panel 35 spaced apart from the rear wall 33 by a predetermined distance and formed with a plurality of cold air discharge ports 34 to form a refrigerating chamber cold air supply passage 32. The lower end of the freezer compartment cold air supply passage 19 and the upper end of the refrigerating compartment cold air supply passage 32 are connected through a connection passage 36 formed in the intermediate wall 11. In addition, a return passage 37 is formed in the intermediate wall 11 to guide the air inside the freezing chamber 12 and the refrigerating chamber 13 toward the cooling chamber 17.

따라서 이러한 냉장고는 냉기순환장치(40)가 동작하면 증발기(18)를 거치면서 냉각된 냉각실(17) 내부의 공기가 냉동실 냉기공급유로(19)로 공급된다. 냉동실 냉기공급유로(19)의 냉기는 냉동실 쪽 냉기토출구(31)를 통해 냉동실(12) 내부로 공급되고, 일부가 연결유로(36)를 통하여 냉장실 냉기공급유로(32)로 공급된다. 냉장실 냉기공급유로(32)의 공기는 냉장실(13) 쪽 냉기토출구(34)를 통해 냉장실(13) 내부로 공급된다. 그리고 냉동실(12)과 냉장실(13) 내부의 공기는 중간벽(11)에 형성된 복귀유로(37)를 통하여 다시 냉각실(17)로 복귀함으로써 순환을 한다.Therefore, in the refrigerator, when the cold air circulation device 40 operates, the air inside the cooling chamber 17 that is cooled while passing through the evaporator 18 is supplied to the freezer compartment cold air supply passage 19. The cold air of the freezer compartment cold air supply passage 19 is supplied into the freezer compartment 12 through the freezer compartment cold air outlet 31, and part of the freezer compartment cold air supply passage 32 is supplied to the refrigerating compartment cold air supply passage 32 through the connection passage 36. The air of the refrigerating chamber cold air supply passage 32 is supplied into the refrigerating chamber 13 through the cold air discharge port 34 toward the refrigerating chamber 13. The air inside the freezing chamber 12 and the refrigerating chamber 13 circulates by returning back to the cooling chamber 17 through the return passage 37 formed in the intermediate wall 11.

도3는 본 발명에 따른 냉장고에 포함되는 냉기순환장치의 분해사시도이고, 도4은 도3의 A-A'방향의 단면사시도이다.3 is an exploded perspective view of the cold air circulation system included in the refrigerator according to the present invention, and FIG. 4 is a cross-sectional perspective view taken along the line AA ′ of FIG. 3.

본 발명의 냉장고에 포함되는 냉기순환장치(40)는 도2,3에 도시된 바와 같이, 벨마우스(22)측에 마련되는데, 냉기순환장치(40)는 냉기를 송풍하기 위한 송풍팬(41)과, 송풍팬(41)에 구동력을 전달하는 팬모터(42)와, 팬모터(42)를 지지하는 지지부(43)를 포함하여 이루어진다.The cold air circulation device 40 included in the refrigerator of the present invention is provided on the side of the bell mouse 22, as shown in Figures 2 and 3, the cold air circulation device 40 is a blowing fan 41 for blowing cold air ), A fan motor 42 for transmitting a driving force to the blowing fan 41, and a support 43 for supporting the fan motor 42.

벨마우스(22)는 유로구획판(20)과 일체로 연결되어 송풍방향으로 유선형의 단면으로 형성되며, 송풍팬(41)은 벨마우스(22)와 송풍팬(41)의 날개선단(41a)이 일정한 이격거리를 유지할 수 있도록 유로구획판(20)의 개구(21)에 마련된다. 송풍팬(41)의 후측에는 송풍팬(41)과 축결합하여 송풍력을 제공하기 위한 팬모터(42)가 마련되는데, 팬모터(42)는 이를 지지하기 위한 지지부(43)에 고정설치된다.Bell mouse 22 is integrally connected to the flow path partition plate 20 is formed in a streamlined cross-section in the blowing direction, the blowing fan 41 is the blade tip (41a) of the bell mouse 22 and the blowing fan 41 It is provided in the opening 21 of the flow path block 20 so as to maintain this constant separation distance. The rear side of the blowing fan 41 is provided with a fan motor 42 for axially coupled with the blowing fan 41 to provide a blowing force, the fan motor 42 is fixed to the support portion 43 for supporting it. .

지지부(43)는 벨마우스(22)의 내측단부(22a)에서 반경방향으로 소정거리 이격되어 유로구획판(20)에서 팬모터(42)측으로 돌출되어 마련되는 복수의 지지다리(43a)와, 복수의 지지다리(43a)가 내측으로 절곡되어 상호 연결된 형태로 구비되어 팬모터(42)의 고정을 위한 팬모터장착부(43b)를 포함하여 이루어진다.The support 43 is a plurality of support legs (43a) protruding from the inner end portion (22a) of the bell mouse 22 in a radial direction to protrude toward the fan motor 42 in the flow path partition plate 20, The plurality of support legs 43a are bent inward to be connected to each other to include a fan motor mounting portion 43b for fixing the fan motor 42.

즉, 지지다리(43a)의 하단은 벨마우스(22)의 내측단부(22a)에서 반경방향으로 소정거리 이격되어 팬모터(42)측으로 돌출되고 상단은 절곡되어 팬모터장착부(43b)를 형성하게 된다.That is, the lower end of the support leg 43a is radially spaced apart from the inner end 22a of the bell mouse 22 by a predetermined distance to protrude toward the fan motor 42 and the upper end is bent to form the fan motor mounting part 43b. do.

바람직하게는 벨마우스(22)의 내측단부(22a)와 지지다리(43a)의 하단은 2mm ~ 6mm 이격되어 설치된다. 이러한 이격거리(t)는 송풍팬(41)의 날개선단(41a)이 지지다리(43a)를 지나칠 때 발생하는 BPF(blade passing frequency : 깃의 통과주파수)를 피크를 낮춤으로서 송풍팬(41)의 날개와 지지다리(43a)사이에서 발생되는 강한 와류현상에 의해 발생하는 소음의 발생을 저감할 수 있게 된다.Preferably, the inner end portion 22a of the bell mouse 22 and the lower end of the support leg 43a are spaced apart from 2 mm to 6 mm. This separation distance (t) is blown fan 41 by lowering the peak of the blade passing frequency (BPF) generated when the blade tip 41a of the blower fan 41 passes the support leg 43a. It is possible to reduce the generation of noise generated by the strong vortex phenomenon generated between the wing and the support leg (43a).

또한 벨마우스(22)가 형성된 유로구획판(20)과 지지부(43)는 일체로 사출성형하게 되는데, 사출성형시 금형상의 언더컷을 방지하기 위해 지지다리(43a)의 이격거리(t)만큼 벨마우스(22)의 내측면과 지지다리(43a)의 하단사이에 홈(44)이 형성된다. 이때 소음의 저감을 위해 지지다리(43a)의 하단을 벨마우스(22)의 내측단 부(22a)로부터 6mm 이상 이격시키게 되면 언더컷방지를 위한 홈(44)의 단면적이 크게 형성되므로 송풍팬(41)의 풍량이 저감되어 송풍팬(41)의 성능이 저하되기 때문에 이격거리는 6mm이하로 설정하는 것이 바람직하다.In addition, the flow path partition plate 20 and the support portion 43 in which the bell mouse 22 is formed are integrally injection molded. In order to prevent undercut on the mold during injection molding, the bell is separated by the separation distance t of the support leg 43a. A groove 44 is formed between the inner surface of the mouse 22 and the lower end of the support leg 43a. At this time, if the lower end of the support leg 43a is separated from the inner end portion 22a of the bell mouse 22 by 6 mm or more to reduce the noise, the cross-sectional area of the groove 44 for preventing the undercut is large, so that the blowing fan 41 It is preferable to set the separation distance to 6 mm or less because the amount of air in the airflow is reduced and the performance of the blower fan 41 is reduced.

도 5는 본발명에 따른 냉장고에 포함되는 냉기공급장치의 풍량 및 소음 실험결과를 나타내는 표이다.5 is a table showing the results of the air volume and noise experiments of the cold air supply apparatus included in the refrigerator according to the present invention.

도 5의 실험결과표는 송풍팬(41)의 직경이 100mm이고 벨마우스(22)의 직경이 110mm인 냉기순환장치(40)의 풍량 및 소음에 관한 결과표로, 도시된 바와 같이 동일한 RPM으로 회전하는 송풍팬(41)에서 벨마우스(22)의 내측선단(22a)과 지지다리(43a)의 하단사이의 이격거리(t)에 관계없이 풍량은 거의 동일한 수준을 유지한다. 그러나 소음은 이격거리(t)를 2mm, 4mm, 6mm으로 설정하는 경우 벨마우스의 내측선단과 지지다리의 하단을 일치하게 형성하는 종래기술에 비해 1.6db-1.7db 감소함을 알 수 있다.5 is a result table of the air flow rate and the noise of the cold air circulation device 40 having a diameter of the blowing fan 41 and a diameter of the bell mouse 22 of 110 mm, which rotates at the same RPM as shown in FIG. 5. In the blowing fan 41, the air flow rate is maintained at about the same level regardless of the separation distance t between the inner end 22a of the bell mouse 22 and the lower end of the support leg 43a. However, when the noise distance (t) is set to 2mm, 4mm, 6mm, it can be seen that 1.6db-1.7db decreases compared to the prior art in which the inner end of the bell mouse and the lower end of the support leg are formed to match.

또한 이격된 부분에 형성된 홈(44)은 언더컷을 방지시켜 제조생산성이 향상되게 된다.In addition, the grooves 44 formed in the spaced portions prevent undercutting, thereby improving production productivity.

도 6은 본발명의 다른 실시예에 따른 벨마우스와 지지부의 단면사시도이다.Figure 6 is a cross-sectional perspective view of the bell mouse and the support according to another embodiment of the present invention.

본 발명과 동일한 구성에 대한 설명은 생략하기로 하고 동일한 도면부호를 부여한다.Description of the same configuration as the present invention will be omitted, and the same reference numerals.

다른 실시예에 따른 냉기순환장치(40)는 유로구획판(20)과 지지부(43)를 별도의 부재로 형성하여 마련할 수 있고, 지지다리(43a)의 하단은 벨마우스(22)의 내측선단(22a)에서 반경방향외측으로 소정의 이격거리를 이격시켜 마련하되 벨마우 스(22)의 내측면과 지지다리(43a)의 하단사이에 홈이 형성되지 아니한 구조로 구비된다. 이러한 구성으로 본발명의 일실시예와 동일하게 송풍팬의 소음을 감소시킬 수 있는 효과를 얻을 수 있다.The cold air circulation device 40 according to another embodiment may be provided by forming the flow path partition plate 20 and the support part 43 as a separate member, and the lower end of the support leg 43a is an inner side of the bell mouse 22. A predetermined distance is provided to be spaced radially outward from the tip 22a, but a groove is not formed between the inner surface of the bell mouse 22 and the lower end of the support leg 43a. With this configuration, it is possible to obtain the effect of reducing the noise of the blowing fan in the same manner as in the embodiment of the present invention.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 냉장고는 벨마우스의 내측단으로부터 지지다리를 반경방향외측으로 소정거리 이격시켜 마련하여 와류의 형성을 줄임으로써 소음을 저감할 수 있는 효과가 있다.As described in detail above, the refrigerator according to the present invention has an effect of reducing noise by reducing the formation of the vortex by providing a support leg spaced radially outward from the inner end of the bell mouse.

또한 이격된 부분의 벨마우스에는 홈을 형성시켜 사출성형시 언더컷의 생성을 방지하여 생산성을 향상할 수 있는 효과가 있다.In addition, the bell mouse of the spaced apart portion has an effect of improving the productivity by forming a groove to prevent the generation of undercut during injection molding.

Claims (5)

냉기를 안내하기 위한 벨마우스와, 상기 벨마우스에 마련된 냉기공급장치를 포함하는 냉장고에 있어서,A refrigerator comprising a bell mouse for guiding cold air and a cold air supply device provided in the bell mouse, 상기 냉기공급장치는 냉기를 송풍하기 위한 송풍팬과, 상기 송풍팬에 구동력을 전달하는 팬모터와, 상기 팬모터를 지지하는 지지부를 포함하되, 상기 지지부는 상기 벨마우스의 내측단부에서 소정거리 이격되어 형성된 것을 특징으로 하는 냉장고.The cold air supply device includes a blowing fan for blowing cold air, a fan motor for transmitting a driving force to the blowing fan, and a support for supporting the fan motor, wherein the support is spaced a predetermined distance from the inner end of the bell mouse. Refrigerator, characterized in that formed. 제 1항에 있어서, 상기 지지부는 상기 벨마우스의 내측단부에서 이격되어 상기 팬모터측으로 돌출되어 형성된 복수의 지지다리와, 상기 복수의 지지다리가 상호 연결되며 상기 팬모터가 장착되는 팬모터장착부를 포함하는 것을 특징으로 하는 냉장고. The fan motor mounting part of claim 1, wherein the support part is spaced apart from the inner end of the bell mouse and protrudes toward the fan motor, and the fan motor mounting part is connected to the support motor and the fan motor is mounted. Refrigerator comprising a. 제 2항에 있어서, 상기 복수의 지지다리의 일단은 상기 벨마우스로부터 2mm~ 6mm 반경방향 외측으로 이격되어 형성된 것을 특징으로 하는 냉장고.The refrigerator of claim 2, wherein one end of the plurality of support legs is spaced apart from the bell mouse in a radially outer side of 2 mm to 6 mm. 제 3항에 있어서, 상기 벨마우스는 언더컷 방지를 위한 홈이 형성된 것을 특징으로 하는 냉장고.The refrigerator of claim 3, wherein the bell mouse is provided with a groove for preventing undercut. 제 4항에 있어서, 상기 벨마우스와 상기 지지부는 일체로 사출성형되는 것을 특징으로 하는 냉장고.The refrigerator of claim 4, wherein the bell mouse and the support part are integrally injection molded.
KR1020060039964A 2006-05-03 2006-05-03 Refrigerator KR101235196B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020060039964A KR101235196B1 (en) 2006-05-03 2006-05-03 Refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060039964A KR101235196B1 (en) 2006-05-03 2006-05-03 Refrigerator

Publications (2)

Publication Number Publication Date
KR20070107447A KR20070107447A (en) 2007-11-07
KR101235196B1 true KR101235196B1 (en) 2013-02-20

Family

ID=39062797

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020060039964A KR101235196B1 (en) 2006-05-03 2006-05-03 Refrigerator

Country Status (1)

Country Link
KR (1) KR101235196B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103900324B (en) * 2014-03-28 2016-06-22 合肥美的电冰箱有限公司 The air duct cover board assembly of refrigerator, the casing of refrigerator and wind cooling refrigerator
CN103994625B (en) * 2014-05-27 2016-09-28 合肥华凌股份有限公司 The fan supporter assembly of refrigerator and refrigerator
KR20230038044A (en) * 2021-09-10 2023-03-17 삼성전자주식회사 Refrigerator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50113959U (en) 1974-02-25 1975-09-17
JPH1019445A (en) 1996-06-27 1998-01-23 Mitsubishi Heavy Ind Ltd Cooling unit of refrigerating device
KR20000009935U (en) * 1998-11-13 2000-06-05 구자홍 Cold supply of the refrigerator
KR20040020616A (en) * 2002-08-31 2004-03-09 삼성전자주식회사 Refrigerator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50113959U (en) 1974-02-25 1975-09-17
JPH1019445A (en) 1996-06-27 1998-01-23 Mitsubishi Heavy Ind Ltd Cooling unit of refrigerating device
KR20000009935U (en) * 1998-11-13 2000-06-05 구자홍 Cold supply of the refrigerator
KR20040020616A (en) * 2002-08-31 2004-03-09 삼성전자주식회사 Refrigerator

Also Published As

Publication number Publication date
KR20070107447A (en) 2007-11-07

Similar Documents

Publication Publication Date Title
KR101390448B1 (en) Refrigerator
EP2975341B2 (en) Refrigerator
US20140216097A1 (en) In-the-door compact cooling system for domestic refrigerators
JP2018100808A (en) refrigerator
KR101235196B1 (en) Refrigerator
CN113028708B (en) Refrigerator with a door
JP2015042909A (en) Refrigerator
JP2015042911A (en) Refrigerator
KR20160100548A (en) Refrigerator
KR20070031721A (en) Refrigerator
JP2015135221A (en) refrigerator
KR101640599B1 (en) Refrigerator of french door type
KR102615061B1 (en) Refrigerator
KR20080090941A (en) Refrigerator
KR200231101Y1 (en) Refrigerator
US20230204275A1 (en) Refrigerator
KR100378824B1 (en) Structure for guiding cooling air in refrigerator
KR20060078134A (en) Refrigerator
KR200292004Y1 (en) Refrigerator
KR200342141Y1 (en) Device for reducing noise for refrigerators
KR200292006Y1 (en) Refrigerator
KR20170081463A (en) refrigerator
KR101991821B1 (en) Refrigerator
KR20210072581A (en) grille-fan assembly for refrigerator
KR100436274B1 (en) Refrigerator

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20160128

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20170125

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20180130

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20190130

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20200130

Year of fee payment: 8