KR100260316B1 - Cool-air circulation unit of a refrigerator - Google Patents

Cool-air circulation unit of a refrigerator Download PDF

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Publication number
KR100260316B1
KR100260316B1 KR1019970042669A KR19970042669A KR100260316B1 KR 100260316 B1 KR100260316 B1 KR 100260316B1 KR 1019970042669 A KR1019970042669 A KR 1019970042669A KR 19970042669 A KR19970042669 A KR 19970042669A KR 100260316 B1 KR100260316 B1 KR 100260316B1
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KR
South Korea
Prior art keywords
cold air
freezer compartment
door
compartment
freezing
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KR1019970042669A
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Korean (ko)
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KR19990019305A (en
Inventor
김석노
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구자홍
엘지전자주식회사
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Application filed by 구자홍, 엘지전자주식회사 filed Critical 구자홍
Priority to KR1019970042669A priority Critical patent/KR100260316B1/en
Priority to US08/988,533 priority patent/US5960641A/en
Priority to JP35259597A priority patent/JP4008555B2/en
Priority to CN 97125892 priority patent/CN1126925C/en
Publication of KR19990019305A publication Critical patent/KR19990019305A/en
Application granted granted Critical
Publication of KR100260316B1 publication Critical patent/KR100260316B1/en

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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
    • 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
    • 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
    • F25D2317/065—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 return

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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

PURPOSE: A cooling air circulation structure for freezing compartment is provided to achieve an overall freezing efficiency and uniform cooling effect throughout the refrigerating compartment by allowing the cooling air to smoothly circulate through the freezing compartment. CONSTITUTION: A freezing compartment door(20) has a door side flow channel(14) for connecting the upper portion and lower portion of a freezing compartment(12) so as to allow the cooling air to smoothly circulate throughout the upper portion and lower portion of the freezing compartment. The door side flow channel has a cooling air inlet(14b) formed at the upper portion of the freezing compartment, and a cooling air outlet(14c) formed at the lower portion of the freezing compartment in the vicinity of the inlet of a freezing compartment return duct(16) which is arranged at a barrier(15). Thus, the cooling air passed through the door side flow channel is directly guided toward an evaporator(17).

Description

냉동실 냉기순환구조Freezer cold air circulation structure

제1도는 일반적인 냉기순환구조를 보인 냉장고의 단면도.1 is a cross-sectional view of a refrigerator showing a general cold air circulation structure.

제2도는 본 발명의 냉기순환구조를 보인 냉장고의 단면도.2 is a cross-sectional view of a refrigerator showing a cold air circulation structure of the present invention.

제3도는 제2도의 B부분 확대도.3 is an enlarged view of a portion B of FIG.

제4도는 제2도의 A-A선 단면도.4 is a cross-sectional view taken along the line A-A of FIG.

제5도는 냉동실 도어의 연상태 정면도.5 is a front view of the open state of the freezer door.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

12 : 냉동실 14 : 도어유로12 freezer 14 door euro

16 : 냉동실귀환덕트 18 : 도어바스켓16: freezer return duct 18: door basket

20 : 냉동실 도어20: freezer door

본 발명은 냉동실의 냉기순환구조에 관한 것으로, 더욱 상세하게는 냉동실의 도어를 경유하여 냉동실 귀환덕트로 냉기가 순환할 수 있도록 구성되는 냉동실 냉기순환구조에 관한 것이다.The present invention relates to a cold air circulation structure of the freezer compartment, and more particularly, to a freezer compartment cold air circulation structure configured to circulate cold air to the freezer compartment return duct via the door of the freezer compartment.

먼저 제1도를 참조하면서, 냉장고의 냉기순환과정에 기초하여 냉장고의 구조에 대하여 설명한다. 냉장고의 하부는 베리어(5)에 의하여 냉동실(2)과 냉장실(4)로 구분된다. 증발기(8)에 의하여 열교환된 냉기의 일부는 송풍팬(9)에 의하여 냉동실(2)로 공급되고, 나머지 일부는 쉬라우드(7)를 거쳐 냉장실덕트(3)로 낙하한다. 냉장실덕트(3)로 공급된 냉기는 그 전면에 성형된 다수개의 냉기토출공을 통하여 냉장실(4)로 공급된다.First, referring to FIG. 1, the structure of the refrigerator will be described based on the cold air circulation process of the refrigerator. The lower part of the refrigerator is divided into a freezer compartment 2 and a refrigerating compartment 4 by the barrier 5. A part of the cold air heat-exchanged by the evaporator 8 is supplied to the freezing chamber 2 by the blowing fan 9, and the other part falls through the shroud 7 to the refrigerating chamber duct 3. The cold air supplied to the refrigerating chamber duct 3 is supplied to the refrigerating chamber 4 through a plurality of cold air discharge holes formed on the front surface thereof.

그리고 송풍팬(9)에 의하여 냉동실(2)로 공급된 냉기는 냉동실 내부를 순환한 뒤, 베리어(5) 상에 설치되어 있는 냉동실귀환덕트(6)를 통하여 다시 증발기(8)측으로 귀환하게 된다. 냉장실(4) 내부를 순환하면서 열교환을 마친 냉기는 상기 베리어(5)에 성형되어 있는 냉장실귀환덕트(도시없음)를 통하여 증발기(8)측으로 돌아오게 된다.The cold air supplied to the freezer compartment 2 by the blowing fan 9 circulates inside the freezer compartment, and then returns to the evaporator 8 through the freezer compartment return duct 6 installed on the barrier 5. . The cold air that has completed heat exchange while circulating inside the refrigerating chamber 4 returns to the evaporator 8 side through a refrigerating chamber return duct (not shown) formed in the barrier 5.

냉동실(2)에 있어서, 상기 냉동실귀환덕트(6)의 입구는 냉동실의 바닥면에 설치되어 있다. 따라서 냉동실의 하부에서 토출되는 냉기의 순환은 원활하게 진행되나, 냉동실의 상부를 통하여 공급된 냉기는 상기 냉동실귀환덕트(6)로의 귀환에 문제점이 생긴다.In the freezer compartment 2, the inlet of the freezer compartment return duct 6 is provided on the bottom surface of the freezer compartment. Therefore, the circulation of the cold air discharged from the lower part of the freezing chamber proceeds smoothly, but the cold air supplied through the upper part of the freezing chamber has a problem in returning to the freezing chamber return duct 6.

구체적으로 살펴보면, 냉동실(2)의 상부에서 공급되는 냉기는 보관중인 식품에 의하여 원활한 순환을 이루지 못하는 문제점이 있으며, 이러한 문제점은, 특히 냉동실(2)의 선반(2a)에 보관중인 식품이 많은 경우에는 냉동실의 냉기순환이 더욱 심각하게 된다. 실제 온도 분포를 보면, 통상 냉동실의 상부 바스켓(2b) 부분의 온도는, 냉동실 기준온도인 -18℃에 못미치는 -15℃에서 -13℃ 정도에 불과하다. 이러한 온도 편차는 냉동실 상단의 바스켓(2b) 부분의 냉기 순환이 원활하지 못함에 기인하고 있으며, 냉동실 도어 개폐시 유입되는 습기를 포함하는 공기가 특히 냉동실의 상부 측에 머물게 되기 때문에 온도편차는 더욱 심해진다. 그리고 이미 냉각되어 있는 고내 구조물(선반 그릴팬의 표면, 냉동실벽면)과 식품 표면에 습기를 가진 따뜻한 공기가 부딪히면서 결빙현상이 발생하기도 하여, 제품의 신뢰성이 문제로 대두되기도 한다.Specifically, the cold air supplied from the upper portion of the freezer compartment 2 does not have a smooth circulation due to the food being stored, and this problem, particularly when there are many food items stored in the shelf 2a of the freezer compartment 2 In the freezer cold cycle becomes more serious. In view of the actual temperature distribution, the temperature of the upper basket 2b portion of the freezer compartment is usually only -15 占 폚 to -13 占 폚, which is less than -18 占 폚, the freezer compartment reference temperature. This temperature variation is caused by the poor circulation of the cold air in the basket 2b portion of the upper part of the freezer compartment, and the temperature deviation is more severe because the air containing moisture stays on the upper side of the freezer compartment, especially when the freezer door opens and closes. Lose. In addition, there is a problem of freezing due to the collision of warm air with moisture inside the already-cooled structure (surface of the shelf grill pan, freezer wall surface) and the food surface, and the reliability of the product may be a problem.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 냉기의 순환이 원활한 냉동실의 냉기순환구조를 제공하는 것을 목적으로 한다.An object of the present invention is to provide a cold air circulation structure of a freezer compartment in which cold air circulation is smooth.

상기 목적을 달성하기 위한 본 발명에 의하면, 냉동실 뒷벽으로부터 냉기가 분출되어 냉동실 전면바닥으로 흡입되는 냉기순환구조를 가진 냉동실 냉기순환구조에 있어서, 냉동실 전부분으로의 원활한 냉기순환을 위해 냉동실도어의 내측에, 냉동실의 상부에서 하부로 연통하는 도어유로를 설치하여, 냉동실 상부를 순환한 냉기가 상기 도어유로에 의하여 쉽게 하부로 안내될 수 있도록 하고 있다.According to the present invention for achieving the above object, in the freezer cold air circulation structure having a cold air circulation structure in which cold air is ejected from the rear wall of the freezer compartment and sucked into the bottom surface of the freezer compartment, the inside of the freezer compartment door for smooth cold circulation to all parts of the freezer compartment A door flow passage communicating with an upper portion of the freezer compartment from the lower portion of the freezer compartment is installed so that cold air circulated in the upper portion of the freezer compartment can be easily guided by the door passage.

상기 도어유로의 하단 출구부분은 냉동실귀환덕트의 입구와 인접한 위치에 설치하여, 도어유로를 나온 냉기가 바로 증발기측으로 안내될 수 있도록 한다.The lower outlet portion of the door passage is installed at a position adjacent to the inlet of the freezer compartment return duct, so that the cold air exiting the door passage can be directly directed to the evaporator side.

그리고 상기 도어유로의 중간부분에는 냉동실과 연통하는 다수개의 냉기통과공을 형성함으로써 냉동실의 중간부분의 냉기의 순환을 더욱 원활하게 하는 것이다.In addition, by forming a plurality of cold air passing holes communicating with the freezing compartment in the middle portion of the door passage, the circulation of cold air in the middle portion of the freezing compartment is more smoothly performed.

다음에는 도면에 도시된 본 발명의 실시예에 기초하면서 본 발명을 더욱 상세하게 설명하기로 한다.Next, the present invention will be described in more detail with reference to the embodiments of the present invention shown in the drawings.

제2도에 도시한 바와 같이, 본 발명에 의하면, 냉동실도어(20)에는 냉동실의 상하부를 연결하는 도어유로(14)를 형성하여, 냉동실(12)의 상하단의 냉기 순환을 원활하게 하고 있다.As shown in FIG. 2, according to the present invention, the freezing chamber door 20 is provided with a door passage 14 connecting the upper and lower parts of the freezing chamber to smoothly circulate the cold air in the upper and lower ends of the freezing chamber 12. As shown in FIG.

상기 도어유로(14)는, 냉동실 도어에 설치되며, 냉동실(12)의 상부와 하부를 연통시킬 수 있도록 구성되는 것으로, 별도의 사출물덕트를 이용하여 냉동실도어(20)의 내면에 부착하는 것도 가능하고, 냉동실도어(20)의 내부에 단열발포재의 충진시 내부에 이미 성형된 덕트로 구성하는 것도 가능하다.The door passage 14 is installed in the freezer compartment door and is configured to communicate the upper and lower portions of the freezer compartment 12. The door passage 14 may be attached to the inner surface of the freezer compartment door 20 using a separate injection duct. In addition, the filling of the insulating foam in the freezer compartment 20 may be configured as a duct already molded therein.

상기 도어유로(14)의 입구(14b), 즉 냉동실의 냉기가 들어가는 부분은, 제3도 및 제5도에 도시한 바와 같이, 냉동실(12)의 상단부에 설치되고, 냉기가 나오는 출구(14c)는 냉동실(12)의 하부에 설치되어 있다.The inlet 14b of the door passage 14, that is, the portion into which the cold air enters the freezing chamber, is installed at the upper end of the freezing chamber 12, as shown in FIGS. 3 and 5, and the outlet 14c from which the cold air comes out. ) Is installed at the lower part of the freezing chamber 12.

상기 도어유로(14)의 출구(14c)에 대하여 살펴보면, 제3도에 도시한 바와 같이, 베리어(15)에 성형된 냉동실귀환덕트(16)의 입구와 인접하게 설치되어야 한다. 즉, 상기 도어유로(14)의 출구(14c)를 통하여 배출되는 냉기는, 냉동실귀환덕트(16)로 바로 유입될 수 있도록 하는 것이 바람직하다. 그리고 제3도에 도시한 실시예에 있어서, 상기 도어유로(14)의 출구(14c)는 냉동실도어(20)의 하단부 도어바스켓(18)의 저면에 형성함으로서, 보다 효과적으로 냉동실귀환덕트(16)로 유입되도록 하고 있다.Looking at the outlet 14c of the door passage 14, as shown in Figure 3, it should be installed adjacent to the inlet of the freezer compartment return duct 16 formed in the barrier (15). That is, the cold air discharged through the outlet 14c of the door passage 14 may be introduced directly into the freezer compartment return duct 16. And in the embodiment shown in Figure 3, the exit 14c of the door flow path 14 is formed on the bottom surface of the lower door basket 18 of the freezer door 20, more effectively the freezer compartment return duct 16 To get into the.

그리고 제5도에 도시한 바와 같이, 상기 도어유로(14)에는 복수개의 냉기통과공(14a)를 성형하여 둔다. 상기 냉기통과공(14a)는, 도어유로(14)의 상부 입구(14b)를 통하여 들어온 냉기가 냉동실(12)의 하부로 배출되거나, 냉동실의 중간 부분에서 열교환을 마친 냉기가 냉동실귀환덕트(16)로 귀환하기 위하여 냉기가 출입하는 것이다. 또한 상기 도어유로(14)의 출구(14c)는 도어(20)의 하단 좌우측으로 나누어져 냉기를 토출할 수 있도록 구성되어 있다(제4도 및 제5도 참조).As shown in FIG. 5, a plurality of cold air passing holes 14a are formed in the door flow passage 14. The cold air passage 14a is configured to discharge cold air introduced through the upper inlet 14b of the door flow passage 14 to the lower portion of the freezing chamber 12, or cool air having completed heat exchange in an intermediate portion of the freezing chamber. To return to the cold air is coming out. In addition, the outlet 14c of the door passage 14 is divided into left and right sides of the lower end of the door 20 so as to discharge cold air (see FIGS. 4 and 5).

다음에는 냉동실귀환덕트(16)에 대하여 살펴보기로 한다. 본 발명의 단면도인 제2도에 도시한 바와 같이, 상기 냉동실귀환덕트(16)는, 베리어(15)의 내부에 성형되어 있다. 그리고 상기 도어유로(14)의 하단부 출구(14c)는 상술한 바와 같이, 도어의 좌우측에 분리되어 성형되어 있고, 이러한 도어유로(14)의 출구(14c)에 대응하는 부분에 냉동실귀환덕트(16)의 입구가 성형되어 있다. 즉, 제4도에 도시한 바와 같이 베리어(15)의 내부에는 좌우측에 나누어 성형된 냉동실귀환덕트(16)가 설치되어 있어서, 상기 도어유로의 출구(14c)에서 나오는 냉기가 바로 냉동실귀환덕트(16)로 안내될 수 있도록 구성되어 있다. 제4도에서 도면부호 22는 냉장실을 순환한 냉기가 귀환하기 위한 냉장실귀환덕트이다.Next, the freezing chamber return duct 16 will be described. As shown in FIG. 2, which is a cross-sectional view of the present invention, the freezer compartment feedback duct 16 is formed inside the barrier 15. As described above, the lower end outlet 14c of the door passage 14 is separately formed on the left and right sides of the door, and the freezer compartment return duct 16 is formed at a portion corresponding to the outlet 14c of the door passage 14. ) Is molded. That is, as shown in FIG. 4, the inside of the barrier 15 is provided with freezer compartment return ducts 16 formed on the left and right sides, so that the cold air coming out of the outlet 14c of the door flow path is the freezer compartment return duct ( 16) is configured to be guided to. In FIG. 4, reference numeral 22 denotes a refrigerating chamber return duct for returning cold air circulating in the refrigerating chamber.

그리고 상기 냉동실귀환덕트(16)의 입구는, 상기 도어유로(14)의 출구(14c)에서 나오는 냉기를 받아들임과 동시에, 냉동실(12) 하부에서의 냉기도 같이 받아들일 수 있도록 되어 있다(제4도 참조). 이는 상기 도어유로(14)의 출구(14c)의 크기를 조정함에 의하여, 달성될 수 있을 것이며, 제4도에 도시한 실시예에 있어서, 상기 도어유로(14)의 출구(14c)는, 냉동실귀환 덕트(16)의 입구의 거의 절반 정도를 차지하도록 설계되어 있다.In addition, the inlet of the freezer compartment return duct 16 receives cold air from the outlet 14c of the door flow passage 14, and simultaneously accepts cold air from the lower part of the freezer compartment 12 (fourth). See also). This may be achieved by adjusting the size of the outlet 14c of the door passage 14, and in the embodiment shown in FIG. 4, the outlet 14c of the door passage 14 is a freezer compartment. It is designed to occupy almost half of the inlet of the return duct 16.

다음에는 이상과 같이 구성되는 냉기순환구조에 의한 냉기의 순환과정에 대하여 설명한다.Next, the circulation process of cold air by the cold air circulation structure comprised as mentioned above is demonstrated.

제2도를 먼저 참조하면, 증발기(17)에서 열교환된 냉기는 송풍팬(13)에 의하여 일부가 냉동실(12)로 공급된다. 냉동실로 공급되는 냉기는 냉동실의 상부 및 하부를 통하여 동시에 냉동실로 공급되며, 이 때 냉동실(12)의 상부로 공급되는 냉기는 냉동실선반(11)에 보관중인 식품을 거치면서, 전방으로 안내되어, 냉동실 도어(20)의 내측 상부에 성형된 입구(14b)를 통하여 도어유로(14)로 유입된다. 도어유로(14)로 유입되는 냉기는 하방을 향하여 내려가면서, 냉기통과공(14a)를 통하여 냉동실로 유입되기도 하며, 냉동실(12)의 중간부분[즉 도어유로(14)의 냉기통과공(14a)이 성형된 부분]의 냉기가 상기 냉기통과공(14a)를 통하여 도어유로(14)로 유입되기도 할 것이다.Referring first to FIG. 2, the cold air heat-exchanged in the evaporator 17 is partially supplied to the freezing chamber 12 by the blower fan 13. The cold air supplied to the freezing compartment is simultaneously supplied to the freezing compartment through the upper and lower portions of the freezing compartment. At this time, the cold air supplied to the upper portion of the freezing compartment 12 is guided forward while passing through the food stored in the freezer compartment 11. It flows into the door flow path 14 through the inlet 14b formed in the upper portion of the freezer compartment door 20. The cold air flowing into the door flow passage 14 flows downward, and is also introduced into the freezing chamber through the cold air passage hole 14a, and the middle portion of the freezing chamber 12 (that is, the cold air passage hole 14a of the door passage 14). Cold air of the molded portion) may be introduced into the door flow path 14 through the cold air passage hole 14a.

이렇게 하여 상기 도어유로(14)로 유입된 냉기는 하방으로 내려와서, 도어유로(14)의 출구(14c)를 통하여 배출된다. 이 때 상기 도어유로(14)의 출구(14c)는, 냉동실귀환덕트(16)의 입구부분과 인접한 상태이기 때문에, 상기 출구(14c)를 통해서 배출되는 냉기는 바로 냉동실귀환덕트(16)으로 유입될 것이다.In this way, the cool air which flowed into the said door flow path 14 descends below, and is discharged through the exit 14c of the door flow path 14. As shown in FIG. At this time, since the outlet 14c of the door passage 14 is adjacent to the inlet portion of the freezer compartment return duct 16, the cold air discharged through the outlet 14c immediately flows into the freezer compartment return duct 16. Will be.

그리고 냉동실(12)의 하부에서 공급되는 냉기는 냉동실(12)에 보관중인 식품과의 열교환 과정을 거치면서 냉동실(12)의 전방으로 흘러가서, 바로 냉동실귀환덕트(16)로 유입될 것이다.The cold air supplied from the lower part of the freezing compartment 12 flows to the front of the freezing compartment 12 while undergoing a heat exchange process with the food stored in the freezing compartment 12, and immediately flows into the freezing compartment return duct 16.

상기와 같은 과정을 거쳐 냉동실귀환덕트(16)로 유입된 냉기는 다시 증발기(17)측으로 이동하게 되고, 증발기(17)에서 열교환된 냉기는 상술한 과정을 반복하게 된다.The cold air introduced into the freezer compartment return duct 16 through the above process is moved to the evaporator 17 side again, and the cold air heat exchanged in the evaporator 17 is repeated.

이상과 같이 구성되는 본 발명에 의하면, 냉동실(12)의 냉기순환이 원활하게 이루어지고 있음을 알 수 있다. 즉, 냉동실(12)의 도어측 상부의 공기는 도어(20)에 설치되어 있는 도어유로(14)를 통하여 냉동실(12)의 하방으로 용이하게 이동하며, 냉동실(12)의 하방에서는 냉동실귀환덕트(16)를 통하여 증발기(17)측으로 용이하게 이동가능하게 되는 것이다.According to this invention comprised as mentioned above, it turns out that the cold air circulation of the freezing chamber 12 is made smoothly. That is, the air in the upper part of the door side of the freezer compartment 12 is easily moved to the lower side of the freezer compartment 12 through the door flow path 14 installed in the door 20, and the freezer compartment return duct below the freezer compartment 12. It becomes easy to move to the evaporator 17 side via 16.

이와 같이 냉동실의 냉기순환이 원활한 점은, 실질적으로 냉동실에서 도어측 상부의 온도가 상대적으로 가장 고온의 부분임을 고려하면, 전체적으로 냉동효율이 높아지면서, 냉장실 전체의 균일한 냉각효과를 얻을 수 있는 잇점이 기대되는 것이다.The smooth cooling cycle of the freezer compartment in this way, considering that the temperature of the upper part of the door side in the freezer compartment is relatively the highest temperature, the overall freezing efficiency is increased, the uniform cooling effect of the entire refrigerator compartment can be obtained This is to be expected.

또한 냉장실 전체의 균일한 냉동온도를 유지하는 것에 의하여, 냉동실로 유입되는 습기에 의한 결빙의 문제점을 대폭 해소하는 것이 가능하게 되어 냉장고 전체적인 신뢰도를 향상시킬 수 있게 되는 것이다.In addition, by maintaining a uniform freezing temperature of the entire refrigerating compartment, it is possible to greatly solve the problem of freezing due to moisture entering the freezing compartment, it is possible to improve the overall reliability of the refrigerator.

Claims (4)

냉동실 뒷벽으로부터 냉기가 분출되어 냉동실 전면바닥으로 흡입되는 냉기순환구조를 가진 냉동실 냉기순환구조에 있어서, 냉동실 전부분으로의 원활한 냉기순환을 위해 냉동실도어의 내측에, 냉동실의 상부에서 하부로 연통하는 도어유로를 설치하는 것을 특징으로 하는 냉동실 냉기순환구조.In the freezer cold air circulation structure having a cold air circulation structure in which cold air is ejected from the rear wall of the freezer compartment and sucked to the bottom of the freezer compartment, a door communicating from the top of the freezer compartment to the bottom of the freezer compartment for smooth cold circulation to all parts of the freezer compartment. Freezer compartment cold air circulation structure characterized in that the flow path is provided. 제1항에 있어서, 상기 도어유로의 하단 출구부분은 냉동실귀환덕트의 입구와 인접한 위치에 설치되는 냉동실 냉기순환구조.The freezer compartment cold air circulation structure according to claim 1, wherein the lower outlet portion of the door passage is installed at a position adjacent to the inlet of the freezer compartment return duct. 제1항 또는 제2항에 있어서, 상기 도어유로의 중간부분에는 도어를 관통하여 냉동실과 연통하는 다수개의 냉기통과공이 성형된 냉동실 냉기순환구조.The freezing chamber cold air circulation structure according to claim 1 or 2, wherein a plurality of cold air passing holes are formed in the middle portion of the door passage to communicate with the freezing compartment through the door. 제3항에 있어서, 상기 도어유로의 출구는, 냉동실의 도어바스켓의 저면에 성형되는 냉동실 냉기순환구조.The freezer compartment cold air circulation structure according to claim 3, wherein the outlet of the door passage is formed on a bottom surface of the door basket of the freezer compartment.
KR1019970042669A 1996-12-28 1997-08-29 Cool-air circulation unit of a refrigerator KR100260316B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019970042669A KR100260316B1 (en) 1997-08-29 1997-08-29 Cool-air circulation unit of a refrigerator
US08/988,533 US5960641A (en) 1996-12-28 1997-12-10 Cold air circulation device of refrigerator
JP35259597A JP4008555B2 (en) 1996-12-28 1997-12-22 Cold air circulation structure of refrigerator
CN 97125892 CN1126925C (en) 1996-12-28 1997-12-24 Cold air circulation device of refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970042669A KR100260316B1 (en) 1997-08-29 1997-08-29 Cool-air circulation unit of a refrigerator

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KR19990019305A KR19990019305A (en) 1999-03-15
KR100260316B1 true KR100260316B1 (en) 2000-07-01

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KR1019970042669A KR100260316B1 (en) 1996-12-28 1997-08-29 Cool-air circulation unit of a refrigerator

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