KR20010011784A - Apparatus for supplying cold air in refrigerator - Google Patents
Apparatus for supplying cold air in refrigerator Download PDFInfo
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- KR20010011784A KR20010011784A KR1019990031315A KR19990031315A KR20010011784A KR 20010011784 A KR20010011784 A KR 20010011784A KR 1019990031315 A KR1019990031315 A KR 1019990031315A KR 19990031315 A KR19990031315 A KR 19990031315A KR 20010011784 A KR20010011784 A KR 20010011784A
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- Prior art keywords
- cold air
- air supply
- refrigerator
- compartment
- shroud
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Classifications
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- 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
- F25D17/08—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 using ducts
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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
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
- F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
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- 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
- F25D2317/063—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 with air guides
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- 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
- F25D2317/066—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 air supply
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- 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
- F25D2317/0683—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 the fans not of the axial type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
본 발명은 냉장고에 관한 것으로서, 보다 상세하게는 높은 고정압으로 냉장고의 냉동실과 냉장실에 냉기를 공급하는 시로코팬과 다분지된 냉기공급로를 설치하여 냉기공급량을 증가시키고, 냉장실의 냉기공급량을 조절할 수 있도록 한 냉장고의 냉기공급장치에 관한 것이다.The present invention relates to a refrigerator, and more particularly, by installing a sirocco fan and a branched cold air supply path for supplying cold air to a freezer compartment and a cold compartment of a refrigerator at a high fixed pressure to increase the amount of cold air, and to control the amount of cold air supplied to the refrigerator compartment. It relates to a cold air supply unit of a refrigerator.
종래의 냉장고는 식품을 냉동보관하는 냉동실이 식품을 냉장보관하는 냉장실의 상부에 설치되는 구조가 일반적이지만, 용량이 큰 대형 냉장고에서는 냉동실과 냉장실이 좌우에 설치되어 보다 많은 양의 식품을 보관할 수 있도록 한 사이드 바이 사이드(side by side)형이 주로 사용된다.Conventional refrigerators generally have a structure in which a freezer for freezing food is installed on the upper part of a refrigerating compartment for storing food. However, in a large refrigerator, a freezer and a refrigerating compartment are installed on the left and right sides to store more food. One side by side type is mainly used.
도 1에서는 종래의 사이드 바이 사이드 냉장고의 내부구조를 부분절결한 사시도로 나타내었다.1 illustrates a partially cutaway perspective view of an internal structure of a conventional side by side refrigerator.
도면에서, 10은 식품을 냉동보관하는 냉동실이고, 20은 식품을 냉장보관하는 냉장실이며, 1은 냉동실과 냉장실로 냉기를 공급하는 냉기공급장치이다.In the figure, 10 is a freezer compartment for storing food, 20 is a refrigerator compartment for storing food, and 1 is a cold air supply device for supplying cold air to the freezer compartment and the refrigerating compartment.
상기 냉동실(10)은 상부에 아이스메이커(ice maker)(14)가 위치되고, 그 내부에는 상기 냉기공급장치(1)로 부터 냉기가 공급되는 냉동실 상부토출구(11)가 설치되고, 상기 아이스메이커(14)의 하부에는 식품 냉동을 위한 선반 및 냉기가 공급되는 냉동실 하부토출구(12)가 구비되며, 그 아래에는 냉동실을 순환한 냉기가 흡입되는 냉동실 흡입구(13)가 마련되어 있다.In the freezer compartment 10, an ice maker 14 is positioned at an upper portion thereof, and a freezer compartment discharge outlet 11 through which cold air is supplied from the cold air supply device 1 is installed therein. The lower part of 14 is provided with a freezer compartment discharge port 12 through which a shelf for freezing food and cold air is supplied, and a freezer compartment suction port 13 through which cold air circulated in the freezer compartment is sucked.
상기 냉장실(20)은 중간에 위치하는 멀리언(mullion)(6)벽에 의하여 냉동실(10)과 구분되며, 상부에는 상기 냉기공급장치(1)로 부터 냉기공급구(21)를 경유하여 냉기를 공급하는 냉장실 토출구(22)가 설치되고, 그 하부에는 식품 등의 냉장을 위한 선반이 구비되며, 그 아래에는 냉장실을 순환한 냉기가 흡입되는 냉장실 흡입구(23)가 마련되어 있다The refrigerating chamber 20 is distinguished from the freezing chamber 10 by a mullion (6) wall located in the middle, the cold air from the cold air supply device (1) via the cold air supply port 21 in the upper portion The refrigerator compartment discharge port 22 is provided, the lower portion is provided with a shelf for refrigeration, such as food, and the refrigerator compartment suction port 23 through which cold air circulated in the refrigerator compartment is sucked.
도 2 및 도 3은 상기 냉기공급장치(1)의 주요 구성과 냉기의 흐름상태를 도시한 것으로서, 상기 냉기공급장치(1)는 냉동실(10)의 후방 상부에 위치하여 증발기(2)를 거쳐 냉각된 공기를 냉장고 내부로 흡입하여 순환시키는 장치로서, 냉각된 공기를 유입시키는 축류팬(3)과, 상기 유입된 공기의 통로가 형성되는 쉬라우드(4)와, 상기 쉬라우드(4)와 통로를 이루어 유입된 공기를 냉동실(10)과 냉장실(20)로 공급하는 그릴팬(5)으로 구성된다.2 and 3 show the main configuration of the cold air supply device 1 and the flow of cold air, wherein the cold air supply device 1 is located at the rear upper portion of the freezing chamber 10 and passes through the evaporator 2. An apparatus for sucking and circulating cooled air into a refrigerator, comprising: an axial fan (3) for introducing cooled air, a shroud (4) formed with a passage of the introduced air, and a shroud (4); It consists of a grill pan (5) for supplying air introduced into the passage to the freezer compartment (10) and the refrigerating compartment (20).
상기와 같은 구성을 갖는 냉기공급장치(1)의 냉기순환구조를 설명하면 다음과 같다.Referring to the cold air circulation structure of the cold air supply device 1 having the configuration as described above are as follows.
전원이 인가되면 압축기(미도시)가 구동되어, 증발기(2)의 열교환에 의하여 냉각공기가 형성되며, 상기 냉각공기는 상부에 설치된 축류팬(3)이 작동하여 회전에 의한 원심력에 의하여 냉동실(10)과 냉장실(20)로 공급된다.When power is applied, a compressor (not shown) is driven to form cooling air by heat exchange of the evaporator 2, and the cooling air is operated by an axial flow fan 3 installed thereon to operate the freezing chamber by centrifugal force by rotation. 10) and the refrigerating chamber 20.
상기 냉동실(10)에서는 상부에서 냉동실 상부토출구(11)를 통하여 아이스메이커(14)로 냉기가 공급되고, 하부에서는 냉동실 하부토출구(12)를 통하여 냉동실의 선반으로 냉기가 공급된 후 냉동실 흡입구(13)를 통하여 순환되며, 상기 냉장실(20)에서는 축류팬(3)에 의하여 회전에 의한 원심력을 갖는 냉기는 냉장실 냉기공급구(21)를 경유하여 냉장실 토출구(22)를 통하여 냉장실(20)에 공급된 후 냉장실 흡입구(23)로 흡입되어 순환된다.In the freezer compartment 10, cold air is supplied from the upper portion to the ice maker 14 through the freezer compartment outlet 11, and at the bottom, the cold air is supplied to the shelf of the freezer compartment through the freezer compartment outlet 12. In the refrigerating chamber (20), the cold air having a centrifugal force by rotation by the axial fan (3) is supplied to the refrigerating chamber (20) through the refrigerating chamber discharge port (22) via the refrigerating chamber cold air supply port (21). After being sucked into the refrigerating chamber suction port 23 is circulated.
상기와 같이, 냉장고의 냉동실(10)과 냉장실(20)을 순환하는 냉기는 순환과정에서 필연적으로 압력손실이 발생되는 바, 도 4에서는 냉기공급량(Q)과 압력손실(Ps)의 관계를 도시하였다. 도면에서 Ps1은 냉동실의 압력손실이고 Ps2는 냉장실의 압력손실을 나타낸 곡선으로서, 냉기공급량(Q)의 증가에 따라서 압력손실(Ps)은 증가되며, 일정량의 냉기공급량(Qc)에 대하여 냉동실의 압력손실(P1)은 냉장실의 압력손실(P2)에 비하여 상대적으로 크게 나타난다.As described above, the cold air circulating in the freezer compartment 10 and the refrigerating compartment 20 of the refrigerator inevitably causes a pressure loss in the circulation process, and FIG. 4 illustrates a relationship between the cold air supply amount Q and the pressure loss Ps. It was. In the figure, Ps 1 is a pressure loss of the freezer compartment and Ps 2 is a curve representing the pressure loss of the refrigerating compartment. The pressure loss Ps increases with the increase of the cold air supply Q, and the freezer compartment for a certain amount of cold air supply Qc. the pressure drop (P 1) is shown relatively large compared to the pressure drop (P 2) of the refrigerator compartment.
상기와 같이 발생되는 냉장실(20)에서의 압력손실을 보완하기 위해서는 냉장실(20)의 송풍량을 증가시켜야 하나, 냉기공급유로를 확장하는 것은 냉장실 내부용적 감소와 같은 공간상의 제약으로 인하여 그 적용이 곤란하며, 송풍량 만을 증가시킬 경우에는 축류팬(3)과 모터의 회전수가 증가되므로 소음이 발생되었다.In order to compensate for the pressure loss in the refrigerating compartment 20 generated as described above, the air flow amount of the refrigerating compartment 20 should be increased, but it is difficult to apply the expansion of the cold air supply flow path due to the space constraint such as the reduction of the internal volume of the refrigerating compartment. In addition, when only the blowing amount is increased, the rotation speed of the axial fan 3 and the motor is increased, and noise is generated.
즉, 종래의 냉기공급장치는 송풍용량이 적은 축류팬(3)이 적용되므로 냉기공급량이 부족하였으며, 냉장실(20)에 발생되는 압력손실에 의하여 냉장효율이 저하되는 문제점이 있었다.That is, in the conventional cold air supply device, since the axial flow fan 3 having a small blowing capacity is applied, the cold air supply amount is insufficient, and the refrigeration efficiency is lowered due to the pressure loss generated in the refrigerating chamber 20.
본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 냉장고의 냉동실과 냉장실로 공급되는 냉기공급량을 증가시키고, 압력손실이 발생하는 냉장실의 냉기공급량을 조절 가능토록 하여 냉장효율을 향상시킬 수 있는 냉장고의 냉기공급장치를 제공하는 데 있다.The present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to increase the amount of cold air supplied to the freezer compartment and the refrigerating compartment of the refrigerator, and to control the amount of cold air supply of the refrigerating compartment in which pressure loss occurs It is to provide a cold air supply device of the refrigerator that can improve the refrigeration efficiency.
도 1은 종래 냉장고의 내부구조를 나타내 보인 부분절결 사시도.1 is a partially cutaway perspective view showing the internal structure of a conventional refrigerator.
도 2는 종래 냉장고 냉기공급장치의 주요 구성과 냉기의 흐름을 나타내 보인 부분사시도.Figure 2 is a partial perspective view showing the main configuration and the flow of cold air of the conventional refrigerator cold air supply.
도 3은 종래 냉장고 냉기공급장치의 주요 구성과 냉기의 흐름을 나타내 보인 측단면도.Figure 3 is a side cross-sectional view showing the main configuration and the flow of cold air of the conventional refrigerator cold air supply.
도 4는 종래 냉장고의 냉동실과 냉장실의 압력손실을 나타낸 도표.Figure 4 is a chart showing the pressure loss of the freezer compartment and the refrigerating compartment of the conventional refrigerator.
도 5는 본 발명에 따른 냉기공급장치의 주요부를 나타내 보인 사시도.Figure 5 is a perspective view showing the main part of the cold air supply apparatus according to the present invention.
도 6은 본 발명에 따른 냉기공급장치와 냉기의 흐름을 나타내 보인 측단면도.Figure 6 is a side cross-sectional view showing the flow of cold air supply and cold air according to the present invention.
도 7은 본 발명에 따른 냉기공급장치의 쉬라우드 정면도.7 is a front view of the shroud of the cold air supply apparatus according to the present invention.
도 8은 본 발명의 냉기조절수단을 나타내 보인 확대사시도.Figure 8 is an enlarged perspective view showing a cold air control means of the present invention.
도 9는 도 8에 도시된 냉기조절수단의 다른 실시례.Figure 9 is another embodiment of the cold air control means shown in FIG.
〈 도면의 주요부분에 대한 부호설명〉<Code Description of Major Parts of Drawings>
10 : 냉동실 11 : 냉동실 상부토출구10: freezer compartment 11: freezer compartment discharge outlet
12 : 냉동실 하부토출구 13 : 냉동실 흡입구12: freezer compartment discharge outlet 13: freezer compartment suction port
14 : 아이스메이커 20 : 냉장실14: ice maker 20: cold room
21 : 냉장실 냉기공급구 22 : 냉장실 토출구21: refrigerator compartment cold air supply port 22: refrigerator compartment discharge port
23 : 냉장실 흡입구 30 : 냉기공급장치23: cold room suction port 30: cold air supply device
40 : 시로코팬 50 : 쉬라우드40: sirocco fan 50: shroud
51 : 냉기유입구 52 : 상부공급로51: cold air inlet 52: upper supply passage
52a : 상부공급로 내측만곡부 52b : 상부공급로 외측만곡부52a: upper supply path inner bent 52b: upper supply path outer bent
53 : 하부공급로 53a : 하부공급로 내측만곡부53: lower supply path 53a: lower supply path inner bent portion
53b : 하부공급로 외측만곡부 54 : 측부공급로53b: lower supply path outer bent portion 54: side supply path
54a : 측부공급로 내측만곡부 54b : 측부공급로 외측만곡부54a: side supply path inner bent part 54b: side supply path outer bent part
60 : 냉기조절수단 61 : 지지구60: cold air control means 61: support
62 : 조절판 63 : 고정수단62: adjusting plate 63: fixing means
P : 상부공급로 시작점 Q : 하부공급로 시작점P: Starting point of upper feedway Q: Starting point of lower feedway
R : 측부공급로 시작점R: Starting point of side feed
상기 목적을 달성하기 위하여, 본 발명인 냉장고의 냉기공급장치는 냉장고의 증발기에서 냉각된 공기를 모터로 구동되어 냉동실과 냉장실로 냉기를 송풍시키는 시로코팬과, 상기 시로코팬의 내측에 형성된 유입구로 냉기를 유입시키고, 상기 시로코팬을 경유한 냉기가 통과되는 냉기공급로가 수개 형성되어 냉동실과 냉장실로 송풍시키는 쉬라우드와, 상기 쉬라우드에 형성된 냉기공급로에 냉기공급량을 조절할 수 있는 냉기조절수단이 설치된 것을 특징으로 한다.In order to achieve the above object, the refrigerator's cold air supply device of the present invention is a sirocco fan that drives the air cooled in the evaporator of the refrigerator by a motor to blow cold air into the freezer compartment and the refrigerating compartment, and the inlet formed inside the sirocco fan. A plurality of cold air supply passages through which the cold air passes through the sirocco fan is formed and blown to the freezer compartment and the refrigerating compartment, and cold air control means for controlling the amount of cold air supplied to the cold air supply passages formed in the shrouds. It is characterized by.
이하, 본 발명의 바람직한 실시례를 첨부도면에 의거하여 설명토록 한다.Hereinafter, preferred embodiments of the present invention will be described based on the accompanying drawings.
도 5는 본 발명에 따른 냉기공급장치의 주요 구성과 냉기의 흐름을 나타내 보인 부분 사시도이고, 도 6은 측단면도이다.5 is a partial perspective view showing the main configuration and the flow of cold air of the cold air supply apparatus according to the present invention, Figure 6 is a side cross-sectional view.
상기 냉기공급장치(30)는 증발기(2)를 거쳐 냉각된 공기를 유입 및 송풍시키는 시로코팬(siroco fan)(40)과, 상기 냉기가 공급되는 통로가 형성된 쉬라우드(50)와, 상기 쉬라우드(50)의 냉기 공급 통로에 부가되어 설치되는 냉기조절수단(60)으로 구성되어, 상기 냉동실(10)의 후방 상부에서 냉각된 공기를 냉동실(10)과 냉장실(20)내로 공급하여 순환시키는 장치이다.The cold air supply device 30 includes a siroco fan 40 for introducing and blowing air cooled through the evaporator 2, a shroud 50 having a passage through which the cold air is supplied, and the shra It is composed of a cold air control means 60 is installed in addition to the cold air supply passage of the wood 50, to supply the air cooled in the upper rear of the freezer compartment 10 into the freezer compartment 10 and the refrigerating compartment 20 to circulate Device.
상기 시로코팬(40)은 다수개의 전방 만곡형을 갖는 짧은 날개를 가진 팬으로서, 유입되는 냉기에 대하여 수직방향으로 송풍시키며, 축류팬보다 더 높은 고정압을 발생시키는 특징을 갖는다.The sirocco fan 40 is a fan having short vanes having a plurality of front curves, and is blown in a vertical direction with respect to the incoming cold air, and has a characteristic of generating a higher fixed pressure than the axial fan.
상기 쉬라우드(50)는 도 7에 도시된 바와 같이, 중앙에는 증발기(2)로 부터 생성된 냉기가 유입되는 유입구(51)가 형성되고, 본체를 이루는 하우징에 다분지된 다수의 냉기공급로가 설치되며, 상기 냉기공급로는 시로코팬(40)의 중심에서 멀어질 수록 곡률반경이 증가되는 만곡형을 나타내고 있다. 상기 냉기공급로는 세방향을 향하고 있는 바, 냉동실 상부토출구(11)와 연결되는 상부공급로(52)와, 냉동실 하부토출구(12)와 연결되는 하부공급로(53)와, 냉장실의 냉기공급구(21)로 연결되는 측부공급로(54)로 구성된다.As shown in FIG. 7, the shroud 50 has an inlet 51 through which cold air generated from the evaporator 2 is introduced, and a plurality of cold air supply paths multiplied in a housing constituting the main body. Is installed, the cold air supply path has a curved shape that increases the radius of curvature increases away from the center of the sirocco fan 40. The cold air supply path is directed in three directions, an upper supply path 52 connected to the freezer compartment upper outlet 11, a lower supply path 53 connected to the freezer compartment lower outlet 12, and a cold air supply to the refrigerating compartment. It is composed of a side supply passage 54 connected to the sphere (21).
상기 냉기공급로는 내측만곡부(52a, 53a, 54a)와 외측만곡부(52b, 53b, 54b)의 사이에 음각으로 형성된 공간부로서, 각 냉기공급로의 외측만곡부와 내측만곡부는 소정의 각도만큼 시작점을 달리하여 설치된다. 즉 도 7에 도시된 바와 같이, 상부공급로(52)는 외측만곡부의 시작점 P와 내측만곡부의 시작점 Q에 의한 각도 θ1만큼 차이를 갖고 있으며, 하부공급로(53)는 외측만곡부의 시작점 Q와 내측만곡부의 시작점 R에 의한 각도 θ2만큼 차이를 나타내고, 측부공급로(54)는 외측만곡부의 시작점 R과 내측만곡부의 시작점 P에 의한 각도 θ3만큼 차이를 갖도록 형성된다.The cold air supply passage is an intaglio space formed between the inner curved portions 52a, 53a, and 54a and the outer curved portions 52b, 53b, and 54b, and the outer curved portion and the inner curved portion of each cold air supply passage are formed by a predetermined angle. It is installed by differently. That is, as shown in Figure 7, the upper supply path 52 has a difference by the angle θ 1 by the starting point P of the outer curved portion and the starting point Q of the inner curved portion, the lower supply path 53 is the starting point Q of the outer curved portion And the difference by the angle θ 2 by the starting point R of the inner bent portion, the side supply path 54 is formed to have a difference by the angle θ 3 by the starting point R of the outer bent portion and the starting point P of the inner bent portion.
상기 냉기조절수단(60)은 상기 쉬라우드(50)에 형성된 각 냉기공급로의 외측만곡부(52b, 53b, 54b)에 별도로 설치될 수 있으며, 본 실시례는 도 5에 도시된 바와 같이 측부공급로(54)에 설치하여 냉장실(20)의 냉기공급량을 조절할 수 있도록 구성되었으며, 내측만곡부(52a, 53a, 54a)에 설치되어도 냉기공급량을 조절할 수 있다.The cold air adjusting means 60 may be separately installed on the outer curved portions 52b, 53b, and 54b of each cold air supply path formed in the shroud 50, and the present embodiment may supply side parts as shown in FIG. Installed in the furnace 54 is configured to adjust the amount of cold air supplied to the refrigerating chamber 20, it is possible to adjust the amount of cold air supply even if installed in the inner curved portion (52a, 53a, 54a).
도 8은 본 발명의 냉기조절수단(60)을 확대하여 도시한 것으로서, 본 실시례에 의한 냉기조절수단(60)은 측부공급로(54)가 시작되는 외측만곡부(54b)의 시작점(R)에 위치되어 각통 형상으로 이루어진 지지구(61)와, 상기 지지구(61)의 내부를 안내에 따라 슬라이딩하며 화살표 방향으로 이동할 수 있는 평판형상의 조절판(62)으로 구성된다.8 is an enlarged view of the cold air adjusting means 60 of the present invention, the cold air adjusting means 60 according to the present embodiment is the starting point R of the outer curved portion 54b at which the side feed passage 54 starts. It is composed of a support (61) formed in a cylindrical shape and a plate-shaped control plate (62) that can move in the direction of the arrow while sliding the inside of the support (61) according to the guide.
도 9는 상기 냉기조절수단(60)의 다른 실시례로서, 상기 지지구(61)의 일측이 길이방향으로 절결되고, 그 절결부로 평판형상의 조절판(62)이 임의의 위치에서 화살표방향으로 삽입될 수 있도록 구성된다.9 is another embodiment of the cold air adjusting means 60, one side of the support 61 is cut in the longitudinal direction, the plate-shaped control plate 62 in the direction of the arrow at any position as the cut portion It is configured to be inserted.
또한, 도 8 및 도 9의 냉기조절수단(60)에서, 바람직하게는 상기 조절판(62)이 이동되어 적정한 량의 냉기를 공급할 수 있는 위치를 결정하고, 조절판(62)이 임의로 이동되지 않도록 지지구(61)에 고정시키는 고정수단(63)이 형성된다. 상기 고정수단(63)은 지지구(61)가 탄발력을 갖고 조절판(62)을 압착하거나, 지지구(61)와 조절판(62)의 결합부에 상호 대응되는 요철부를 형성시키는 것도 바람직하다.In addition, in the cold air adjusting means 60 of Figs. 8 and 9, it is preferable to determine the position where the control plate 62 can be moved to supply an appropriate amount of cold air, so that the control plate 62 does not move arbitrarily. Fixing means 63 is fixed to the earth 61 is formed. It is also preferable that the fixing means 63 forms a concave-convex portion corresponding to the coupling portion of the supporter 61 and the control plate 62 or press the control plate 62 with elasticity.
상기와 같은 구성을 갖는 본 발명에 따른 냉장고의 냉기공급장치에 대한 작용을 살펴보면 다음과 같다.Looking at the operation of the cold air supply device of the refrigerator according to the present invention having the configuration as described above are as follows.
전원이 인가되면 압축기(미도시)가 구동되어 증발기(2)의 열교환에 의하여 냉각공기가 형성되며, 상기 냉각공기는 상부에 설치된 시로코팬(40)의 내부를 경유하여 회전에 의한 원심력으로 냉기 유입방향에 대하여 수직으로 송풍되어, 쉬라우드(50)에 형성된 냉기공급로를 통하여 종래보다 높은 고정압으로 냉동실(10)과 냉장실(20)로 냉기가 공급된다.When power is applied, a compressor (not shown) is driven to form cooling air by heat exchange of the evaporator 2. The cooling air is introduced into the cold air by centrifugal force by rotation via the inside of the sirocco fan 40 installed in the upper portion. It is blown vertically with respect to the direction, and the cold air is supplied to the freezing chamber 10 and the refrigerating chamber 20 at a higher fixed pressure than the conventional one through the cold air supply path formed in the shroud 50.
도 7에서, 상기 시로코팬(40)의 상부에 형성된 상부공급로(52)는 냉동실 상부토출구(11)와 연결되어 아이스메이커(14)로 토출되고, 시로코팬(40)의 하부에 형성된 하부공급로(53)는 냉동실 하부토출구(12)와 연결되어 냉동실(10)로 토출되고, 시로코팬(40)의 옆에 형성된 측부공급로(54)는 냉장실 냉기공급구(21)로 연결되어 냉장실 토출구(22)를 통하여 냉장실(20)로 토출되며, 토출된 냉기는 냉동실과 냉장실에 마련된 식품 등에 냉기를 전달한 후, 흡입구(13, 23)를 통하여 흡입되는 바, 상기와 같이 다분지된 냉기공급로는 종래보다 냉기공급로가 확장되어 송풍량이 증가되는 한편, 설치되는 용적은 종래보다 작게 차지되므로 냉장실(20)의 공간활용이 유리하게 된다.In FIG. 7, an upper supply path 52 formed at an upper portion of the sirocco fan 40 is connected to a freezer compartment discharge outlet 11 and discharged to an ice maker 14, and a lower supply formed at a lower part of the sirocco fan 40 is shown. The furnace 53 is connected to the freezer compartment discharge outlet 12 and is discharged to the freezer compartment 10, and the side supply passage 54 formed next to the sirocco fan 40 is connected to the refrigerating compartment cold air supply port 21 to discharge the refrigerating compartment outlet. The discharged cold air is delivered to the refrigerating compartment 20 through the 22, and the discharged cold air is delivered to the foods provided in the freezing compartment and the refrigerating compartment, and then sucked through the suction ports 13 and 23. The cold air supply passage is expanded than in the prior art, while the blowing amount is increased, while the installed volume is smaller than the conventional space utilization of the refrigerating chamber 20 is advantageous.
그리고 상기 쉬라우드(50)에 형성된 냉기공급로를 경유하여 공급되는 냉기량은 각 냉기공급로의 외측만곡부(52b, 53b, 54b)의 시작점과 내측만곡부(52a, 53a, 54a)의 시작점이 이루는 각도의 크기에 의하여 결정된다. 따라서, 도 7에 도시된 바와 같이, 상부공급로(52)에 의한 냉기공급량은 점POQ가 이루는 각도 θ1의 크기에 의하여 결정되며, 하부공급로(53)에 의한 냉기공급량은 점QOR이 이루는 각도 θ2의 크기에 의하여 결정되고, 측부공급로(54)에 의한 냉기공급량은 점ROP가 이루는 각도 θ3의 크기에 의하여 결정된다.The amount of cold air supplied through the cold air supply path formed in the shroud 50 forms a start point of the outer curved parts 52b, 53b, and 54b of each cold air supply path and a starting point of the inner curved parts 52a, 53a, and 54a. It is determined by the size of the angle. Therefore, as illustrated in FIG. 7, the amount of cold air supplied by the upper supply path 52 is determined by the size of the angle θ 1 formed by the point POQ, and the amount of cold air supplied by the lower supply path 53 is formed by the point QOR. is determined by the size of the angle θ 2, cold air supply by a supply side 54 is determined by the angle θ 3 of the point ROP forming size.
한편, 도 4에 도시된 바와 같이, 일반적으로 냉장실(20)의 압력손실이 과대하여 냉장실(20)의 냉기공급량을 증가시킬 경우에는 도 7에 도시된 θ3의 크기를 증가시켜야 하므로 측부공급로(54)를 형성하는 외측만곡부 시작점(R)의 위치에 도 8과 도 9로 예시되는 냉기조절수단(60)을 설치하여 조절판(62)을 이동시켜 각도 θ3의 크기를 증가시켜 냉장실(20)로 공급되는 냉기공급량을 조절시키는 것과 같이, 계절변화와 같은 주위온도의 변화에 대응하여 냉기공급량을 조절함으로써, 냉장효율을 향상시키게 된다.On the other hand, as shown in Figure 4, in general, when the pressure loss of the refrigerating compartment 20 is excessively increased to increase the amount of cold air supplied to the refrigerating compartment 20, since the size of θ 3 shown in FIG. The cold air adjusting means 60 illustrated in FIGS. 8 and 9 is installed at the position of the starting point R of the outer curved portion forming the 54 to move the control plate 62 to increase the size of the angle θ 3 to refrigerate the chamber 20. By adjusting the amount of cold air supplied to), by adjusting the amount of cold air in response to changes in the ambient temperature such as seasonal changes, the refrigeration efficiency is improved.
이상에서 설명한 바와 같이, 본 발명에 의한 냉장고의 냉기공급장치는 높은 고정압을 발생시키는 시로코팬과, 다분지된 냉기공급로를 설치하여 냉기공급량을 증가시키고 냉기가 공급되는 통로를 확장시켜, 냉장실의 압력손실을 보완하며, 냉장실의 공간을 효율적으로 활용할 수 있다. 또한, 냉기조절수단을 설치하여 압력손실이 큰 냉장실의 냉기공급량을 주위의 온도변화에 대응하여 조절 가능토록 함으로써, 계절별 특성에 맞추어 냉장효율을 향상시킬 수 있는 효과가 있다.As described above, the cold air supply apparatus of the refrigerator according to the present invention increases the amount of cold air supply and expands the passage through which cold air is supplied by installing a sirocco fan and a multi-branched cold air supply path generating high fixed pressure. To compensate for the pressure loss, the space of the refrigerating compartment can be used efficiently. In addition, by installing a cold air control means to adjust the amount of cold air supply in the refrigerating chamber having a large pressure loss in response to changes in the ambient temperature, there is an effect that can improve the refrigeration efficiency according to the seasonal characteristics.
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- 1999-07-30 KR KR1019990031315A patent/KR20010011784A/en not_active Application Discontinuation
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