KR100221541B1 - Freezing storage chamber air curtain device of a refrigerator - Google Patents

Freezing storage chamber air curtain device of a refrigerator Download PDF

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Publication number
KR100221541B1
KR100221541B1 KR1019970029908A KR19970029908A KR100221541B1 KR 100221541 B1 KR100221541 B1 KR 100221541B1 KR 1019970029908 A KR1019970029908 A KR 1019970029908A KR 19970029908 A KR19970029908 A KR 19970029908A KR 100221541 B1 KR100221541 B1 KR 100221541B1
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South Korea
Prior art keywords
freezer compartment
cold air
refrigerator
freezer
curtain device
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KR1019970029908A
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Korean (ko)
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KR19990005693A (en
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전용덕
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전주범
대우전자주식회사
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Priority to KR1019970029908A priority Critical patent/KR100221541B1/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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/023—Air curtain closures
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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)
  • 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 발명은 냉장고의 냉동실 에어커튼장치에 관한 것으로, 종래 냉장고는 냉동실 도어 개페에 따른 냉동실 고내전면 및 도어포켓부 온도상승을 방지하기 위한 별도의 장치가 없어 도어개방시 외부온기가 급격히 냉동실 내부로 유입되고 외부에 완전히 노출되었던 냉동실 도어포켓부의 온도상승으로 인해 식품이 적정상태로 저장되지 못하여 냉동식품의 신선도가 저하되는 문제점이 있어 왔으며, 이를 해결하기 위하여 냉동실 배면 중앙 후측의 냉각기 전방에 냉각기와 인접되게 크로스플로우팬을 설치하고, 상기 크로스플로우팬의 냉기토출측에 그 내부가 중공되며, 후측은 상기 크로스플로우팬의 냉기토출측과 연통되고 선단이 도어포켓부측으로 개방된 선반을 설치하고 상기 선반내부의 공간을 상하로 구획하며 그 선단에 90°로 회동가능한 회동날개를 설치한 냉기분리판으로 구성된 것으로, 또한 냉동실 상부 내상과 외부캐비넷 사이에 선단은 냉동실 상측으로 하향 개방되고 후단은 냉각기 상측으로 하향 개방된 상부귀한덕트를 추가로 포함한 냉동실 에에커튼장치이다.The present invention relates to a freezer compartment air curtain device of a refrigerator, and the conventional refrigerator does not have a separate device for preventing the temperature rise of the inside of the freezer compartment and the door pocket portion according to the opening of the freezer compartment, so that the external warmth suddenly flows into the freezer compartment when the door is opened. Due to the temperature rise of the freezer door pocket part, which has been completely exposed to the outside, food has not been stored properly and freshness of the frozen food has been deteriorated. The crossflow fan is installed, the inside of which is hollowed out on the cold air discharge side of the crossflow fan, and the rear side communicates with the cold air discharge side of the crossflow fan, and installs a shelf whose tip is opened to the door pocket part side, and the space inside the shelf. Rotating blade that can be divided up and down and rotated by 90 ° at the tip A that is configured to cool air distribution plate installed, and between the upper freezer compartment internal injuries to the external cabinet front end is a freezing chamber to to curtain device including an additional upper precious duct downstream open to the upper freezer compartment and the rear end is downwardly open to the upper side condenser.

Description

냉장고의 냉동실 에어커튼장치Refrigerator Freezer Air Curtain System

본 발명은 냉장고의 냉동실 에어커튼장치에 관한 것으로 보다 상세하게는, 냉동실 도어개방시 외부온기의 고내유입을 방지하고 도어개폐후 도어 포켓부의 온도상승을 보상할 수 있도록한 냉장고의 냉동실 에어커튼장치에 관한 것이다,The present invention relates to a freezer compartment air curtain device of a refrigerator, and more particularly, to a freezer compartment air curtain device of a refrigerator which prevents high inflow of external warmth during the opening of a freezer compartment door and compensates for a temperature rise of the door pocket after opening and closing the door. About,

일반적으로 냉장고의 냉동실 냉기공급은 냉동실 내부에 설치된 온도센서의 전기적 신호를 판단한 제어부가 콤프레서를 작동시키고 냉동실팬을 작동시킴으로써 이루어지는데, 종래 냉장고의 냉동실 공급은 도 1에 도시한 바와 같이, 냉동실 팬(21)이 작동하여 냉각기(10)측 냉기를 전방으로 토출하게 되면 냉동실(20) 배면의 냉기토출구를 통해 -18℃~20℃ 냉기가 냉동실(20) 내부로 유입되어 열교환된 후 냉동실(20) 전면 하단의 냉동실 냉기귀환덕트(26)의 냉기유입구로 유입되어 냉각기(10)측으로 복귀하는 과정이 냉동실(20) 온도가 일정온도 이하로 하강할 때까지 반복순환됨으로써 수행하게 된다.In general, the freezer cold air supply of the refrigerator is performed by a control unit that determines an electrical signal of a temperature sensor installed inside the freezer compartment and operates a compressor and operates a freezer compartment. As shown in FIG. 21) is operated to discharge the cold air to the cooler 10 side forward -18 ° C ~ 20 ° C cold air flows into the freezer compartment 20 through the cold air outlet on the back of the freezer compartment 20, the heat exchange after the freezer compartment 20 The process of returning to the cold air inlet of the freezing chamber cold air return duct 26 at the lower front surface is performed by repetitively circulating until the temperature of the freezing compartment 20 drops below a predetermined temperature.

그런데 이러한 종래의 냉동실 냉기공급장치는 냉동실(20) 도어개폐시 온기유입 및 외부노출에 따른 냉동실(20) 고내 및 도어포켓부의 온도상승에 대한 대책이 없어 도어개방시 외부로 노출되었던 도어포켓부의 급격한 온도상승과 냉동실(20) 내부로 온기유입에 의해 식품이 적정상태로 저장되지 못하여 냉동식품의 신선도가 저하되는 문제점이 초래되었다.However, the conventional freezer compartment cold air supply device does not have a measure for the temperature rise in the freezer compartment 20 and the door pocket portion due to the inflow and warmth of the freezer compartment 20 when the door is opened and closed so that the door pocket portion exposed to the outside when the door is opened suddenly. The increase in temperature and inflow of warmth into the freezer compartment 20 prevented food from being stored in a proper state, resulting in a decrease in freshness of frozen food.

미설명부호 "30"은 냉장실이고, "36"은 냉장실 귀한덕트이다.Unexplained symbol "30" is a refrigerator compartment, and "36" is a refrigerator compartment precious duct.

본 발명은 이러한 종래 냉장고의 문제점을 감안하여 안출된 것으로서, 냉동실 도어개방시 외부온기가 냉동실 내부로 유입되는 것을 방지함과 동시에 외부로 노출되어 온도가 상승된 도어포켓부에 신속하게 냉기를 공급하여 상승된 온도를 보상할 수 있는 냉장고의 냉동실 에어커튼장치의 제공을 그 기술적 과제로 한 것이다.The present invention has been made in view of the above problems of the conventional refrigerator, and prevents the external warm air from entering the inside of the freezer compartment when the freezer door is opened and at the same time exposed to the outside to quickly supply the cold air to the door pocket portion having an elevated temperature The technical problem is to provide a freezer air curtain device of a refrigerator capable of compensating for an elevated temperature.

제1도는 종래의 냉동실 냉기공급장치를 도시한 냉장고의 요부측단면도.1 is a sectional view of a main portion of a refrigerator showing a conventional freezer compartment cold air supply device;

제2도는 본 발명에 따른 냉동실 에어커튼장치를 도시한 냉장고의 요부측단면도.2 is a sectional side view of the main portion of a refrigerator showing a freezer compartment air curtain device according to the present invention;

제3도는 본 발명에 따른 냉동실 에어커튼장치의 회동날개 작동상태를 도시한 요부단면도.Figure 3 is a sectional view showing the main part of the rotary wing operating state of the freezer compartment air curtain device according to the present invention.

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

1 : 회동날개 2 : 영구자석1: Rotating wing 2: Permanent magnet

3 : 전자석 4 : 스프링3: electromagnet 4: spring

5 : 스토퍼 8 : 냉기안내선반5: stopper 8: cold air guide shelf

9 : 냉기분리판 10 : 냉각기9: cold air separator 10: cooler

20 : 냉동실 21 : 냉동실팬20: freezer compartment 21: freezer compartment fan

25 : 크로스플로우팬 26 : 냉동실 냉기귀한덕트25: crossflow fan 26: freezer cold precious duct

26a : 상부귀환덕트 30 : 냉장실26a: Upper return duct 30: Refrigerating chamber

36 : 냉장실 냉기귀환덕트 40 : 전자댐퍼36: cold air return duct 40: electronic damper

상기한 기술적 과제를 달성하기 위하여 본 발명은 냉동실 배면 중앙 후측의 냉각기 전방에 냉각기와 인접하게 설치된 크로스플로우팬과, 내부가 중공되어 후단은 상기 크로스플로우팬의 냉기토출구와 연통되고 선단은 도어 포켓부측으로 개방된 냉기안내선반과, 상기 선반 내부의 공간을 상하로 구획하며 포켓부측으로 연장 형성된 선단에 90°로 회동가능한 회동날개를 설치한 냉기분리판과 냉동실 상부 내상과 외부캐비넷 사이에 선단은 냉동실 상측과 연통되도록 하향 개방되고 후단은 냉각기 상측으로 하향 개방된 상부 귀환덕트로 구성된 것이다.In order to achieve the above technical problem, the present invention provides a crossflow fan installed adjacent to the cooler in front of the cooler at the rear of the rear side of the freezer compartment, and the inside thereof is hollow so that the rear end communicates with the cold air outlet of the crossflow fan and the front end of the door pocket part. A cold air separation plate provided with a cold air guide shelf open to the side, and a rotary vane that is 90 degrees rotatable at the tip formed to extend toward the pocket part and partitions the space inside the shelf up and down, and the freezer compartment between the upper inner box and the outer cabinet of the freezer compartment. The lower end is opened to communicate with the upper side and the rear end is composed of the upper return duct opened downward to the upper side of the cooler.

또한 상기 회동날개는 냉기분리판 선단에 회동가능하게 힌지결합되어 냉기 분리판 선단에 형성된 스토퍼에 의해 하측이 냉기분리판측으로만 회동되며 힌지축에 부설된 스프링에 의해 수직을 유지하도록 탄압되며, 상기 회동날개 하측 내면에 철편 또는 영구자석이 설치되고 이에 대응되는 냉기분리판 하면에는 전자석이 설치되는 것을 특징으로 한 것이다.In addition, the pivoting blade is hinged to the tip of the cold air separation plate so as to be rotated by the stopper formed on the end of the cold air separation plate, the lower side is rotated only to the side of the cold air separation plate and pressed to maintain the vertical by the spring attached to the hinge shaft, Iron pieces or permanent magnets are installed on the inner surface of the lower side of the rotor blade, and the electromagnet is installed on the lower surface of the corresponding cold separator.

또한 상기 상부귀환덕트는 제어부에 의해 상기 덕트를 선댁적으로 개방하는 전자댐퍼를 설치한 것이다.In addition, the upper feedback duct is provided with an electromagnetic damper for selectively opening the duct by a control unit.

이하에서, 본 발명에 따른 냉장고의 냉동실 에어커튼장치를 첨부한 도면을 참조하여 보다 구체적으로 설명한다.Hereinafter, with reference to the accompanying drawings a freezer compartment air curtain device of the refrigerator according to the present invention will be described in more detail.

도 2는 본 발명에 따른 냉동실 에어커튼장치를 도시한 냉장고의 요부측단면도이고, 도 3은 회동날개의 작동상태를 도시한 세부구성단면도로서, 본 발명의 냉기안내선반(8)은 종래 선반과 같이 냉동실(20) 배면 중앙위치에 횡으로 부설되는데 냉동실 루버(24)를 관통하여 루버절연물(24a)까지 연장설치되고, 후측에는 냉각기 사이에 크로스플로우팬(25)이 설치되어 상기 냉기 안내선반(8)의 후단이 크로스플로우팬(25)의 냉기토출측과 연통하게 된다.Figure 2 is a side cross-sectional view of the main portion of the refrigerator showing a freezer compartment air curtain device according to the present invention, Figure 3 is a detailed configuration sectional view showing the operating state of the rotor blade, the cold air guide shelf 8 of the present invention is a conventional shelf and As such, the freezing chamber 20 is horizontally placed at the rear side of the freezing chamber 20 and extends through the freezing chamber louver 24 to the louver insulator 24a, and at the rear side, a crossflow fan 25 is installed between the coolers and the cold air guide shelf ( The rear end of 8) communicates with the cold air discharge side of the crossflow fan 25.

그리고 상기 냉기안내선반(8)은 그 내부가 중공되어 상기 중공된 내부공간을 상하로 구획하는 냉기 분리판(9)이 설치되는데 상기 냉기 분리판(9)의 선단은 상기 냉기안내선반(8)보다 조금 더 전방으로 연장형성되어 그단부에 회동날개(1)가 회동가능하게 설치된다.In addition, the cold air guide shelf 8 is provided with a cold air separation plate 9 for partitioning the hollow internal space up and down, and the inside of the cold air guide plate 8 is provided at the tip of the cold air guide shelf 8. It extends a little further forward and the pivoting blade 1 is rotatably installed at its end.

또한 상기 냉기분리판(9)의 선단하측에서 스토퍼(5)가 돌출형성되어 상기 회동날개(1)가 하측을 기준으로하여 냉기분리판(9)측으로만 회동되도록 구성되어 있다.In addition, the stopper 5 protrudes from the lower end side of the cold air separator 9 so that the pivoting blade 1 rotates only toward the cold air separator 9 based on the lower side.

그리고 상기 회동날개(1)가 고정되는 힌지축에는 일반적인 스프링(4)이 설치되어 상기 회동날개(1)의 하측이 전방으로 탄압되어 냉기분리판(9)과 수직을 이루게 구성된다.In addition, a general spring 4 is installed on the hinge shaft to which the pivoting blade 1 is fixed so that the lower side of the pivoting blade 1 is pressed forward to be perpendicular to the cold air separator 9.

그리고 상기 회동날개(1)의 하부내측에는 철편 또는 영구자석(2)이 부착설치되며, 이에 대응되는 냉기분리판(9) 하면에는 전자석(3)이 설치되어 제어부가 상기 전자석(3)에 전원을 인가하면 전자석(3)의 자기력이 상기 스프링(4)의 탄성력을 극복하고 회동날개(1) 하측이 상기 냉기분리판(9) 하면에 부착되어 회동날개(1)가 냉기분리판(9)과 동일하게 수평을 이루게 된다.And the lower inner side of the rotating blade (1) is attached to the iron piece or permanent magnet (2), the electromagnet (3) is installed on the lower surface of the cold air separation plate (9) corresponding to the control unit to supply power to the electromagnet (3) When the magnetic force of the electromagnet (3) overcomes the elastic force of the spring (4) and the lower side of the rotating blade (1) is attached to the lower surface of the cold air separation plate (9), the rotating blade (1) is a cold air separation plate (9) It is horizontally equal to.

한편, 냉동실 (20) 상면 내측으로는 기존의 냉동실 귀환덕트(26)와 별도로 상부 귀환덕트(26')가 형성되는데 상기 상부 귀환덕트(26')의 선단은 냉동실(20) 전면상측으로 하향 개방되고 후단은 냉각기(10) 상측으로 하향개방되어 있다.On the other hand, an upper return duct 26 'is formed inside the upper surface of the freezer compartment 20 separately from the existing freezer compartment return duct 26. The tip of the upper return duct 26' is downwardly opened upward toward the front side of the freezer compartment 20. The rear end is opened downward to the cooler 10.

그리고 상기 상부 귀환덕트(26')의 후단 개구부에는 제어부에 의해 크로스플로우팬(25)의 작동시에만 개방되도록 제어되는 전자댐퍼(40)가 설치되어 있다.The rear end opening of the upper feedback duct 26 ′ is provided with an electromagnetic damper 40 controlled by the controller to be opened only when the crossflow fan 25 is operated.

이와 같이 구성되는 본 발명 냉장고의 냉동실 에어커튼장치는, 정상작동시에는 냉동실내의 온도에 따라 기존의 냉동실팬(21)에 의한 냉동실(20) 내부로의 냉기공급이 이루어지고 냉동실(20) 내부로 토출되는 냉기는 열교환 후 기존의 냉동실 냉기 귀환덕트(26)를 통해 냉각기(10)측으로 복귀하는 냉기순환이 이루어 진다.The freezer compartment air curtain device of the refrigerator of the present invention configured as described above is supplied with cold air into the freezer compartment 20 by the existing freezer compartment fan 21 in accordance with the temperature in the freezer compartment during normal operation and into the freezer compartment 20. The discharged cold air is circulated after the heat exchange to return to the cooler 10 through the existing freezer cold air return duct 26.

그런데 사용자가 냉동실(20)내의 식품을 꺼내거나 저장하기 위하여 도어를 개방하게 되면, 냉동실팬(21) 정지상태에서 통상의 도어개폐 감지센서(도시생략)의 신호에 의해 제어부가 크로스플로우팬(25)을 작동시키고 전자댐퍼(40)를 작동시켜 상부 귀환덕트(26')를 개방한다.However, when the user opens the door to remove or store food in the freezer compartment 20, the control unit controls the crossflow fan 25 by a signal of a normal door open / close detection sensor (not shown) in the freezer compartment fan 21 stationary state. ) And the electromagnetic damper 40 to operate to open the upper feedback duct 26 '.

그리하여 크로스플로우팬(25)에 의해 흡입된 냉각기(10)측의 냉기가 냉기안내선반(8)으로 유입되고 냉기분리판(9)에 의해 상하로 분리되어 전방으로 토출되게 되는데 상기 냉기분리판(9)의 선단에는 회동날개(1)가 냉기진행방향과 수직으로 고정되어 있으므로 상기 회동날개(1)에 의해 냉기분리판(9) 상측의 냉기는 냉동실(20) 전면 상측으로 토출되고 하측의 냉기는 냉동실(20) 전면 하측으로 토출되게 된다.Thus, the cold air on the side of the cooler 10 sucked by the crossflow fan 25 flows into the cold air guide shelf 8 and is separated up and down by the cold air separating plate 9 and discharged forward. Since the rotor blade 1 is fixed perpendicularly to the cold air advancing direction at the tip of 9), the cold air above the cold air separation plate 9 is discharged to the upper side of the front side of the freezing chamber 20 by the pivot vane 1, and the cold air of the lower side is Is discharged to the front of the freezer compartment 20 lower side.

그리고 상측의 냉기는 직상방의 상부 귀한덕트(26')로 유입되어 냉각기(10)측으로 복귀하고 하측의 냉기는 기존의 냉동실 냉기귀환덕트(26)를 통해 냉각기(10)측으로 복귀하고 다시 크로스플로우팬(25)에 의해 흡입되어 냉기안내선반(8)을 통해 냉동실(20) 전면의 상하로 토출되는 냉기순환이 도어개방중에는 반복적으로 이루어진다.The upper cold air flows into the upper precious duct 26 'directly above and returns to the cooler 10 side, and the lower cold air returns to the cooler 10 side through the existing freezer cold air return duct 26 and crossflow fan again. The cold air circulation which is sucked by the 25 and discharged up and down on the front surface of the freezing chamber 20 through the cold air guide shelf 8 is repeatedly performed during the door opening.

따라서, 도어개방중에는 냉동실(20)전면에 에어케튼이 형성되어 외부온기의 냉동실(20)내로의 유입이 차단되게 된다.Therefore, the air ketone is formed on the entire surface of the freezing compartment 20 during the door opening, thereby preventing the inflow of external warmth into the freezing compartment 20.

한편, 도어개방후 도어를 닫게되면 감지센서에 의해 이를 감지한 제어부가 냉기분리판(9)하면에 부설된 전자석에 전원을 인가하게 된다.On the other hand, when the door is closed after the door is opened, the control unit that detects this by the sensor applies power to the electromagnet placed on the lower surface of the cold separator 9.

따라서, 냉기분리판(9)하면에 자기력에 형성되어 회동날개(1)가 그 힌지축에 설치된 스프링(4)의 탄성력을 극복하고 반시계 방향으로 회동하여 회동날개(1)의 하부가 냉기분리판에 달라붙게 된다.Accordingly, the lower part of the rotating blade 1 is separated by the magnetic force on the lower surface of the cold air separating plate 9 so that the rotating blade 1 overcomes the elastic force of the spring 4 installed on the hinge shaft and rotates counterclockwise. Stick to the plate.

그리하여 도 3에 가상선으로 도시한 바와 같이 회동날개(1)가 냉기분리판과 수평을 이루게 되고 크로스플로우팬(25)에 의해 유입된 냉각기(10)측의 냉기가 냉기안내선반(8)을 따라 안내되어 전방의 도어포겟부로 집중적으로 토출되게 되는 것이다.Thus, as shown by the phantom line in FIG. 3, the rotary vanes 1 are flush with the cold air separators, and cold air on the cooler 10 side introduced by the crossflow fan 25 moves the cold air guide shelf 8. It is guided along and is to be intensively discharged to the front door forge.

따라서, 외부에 노출되어 온도가 상승된 도어프켓부의 온도를 보상하여 신속하게 냉각시키게 되는 것이다.Therefore, the temperature is compensated for by rapidly exposing the temperature of the door packet part exposed to the outside.

한편, 냉동실도어를 닫은후의 도어포켓부의 냉기공급시간은 제어부의 타이머에 의한 시간제어의 경우에는 도어개방시간에 따라 적정시간 냉기를 공급할 수도 있고, 도어포켓부의 별도로 온도감지센서를 설치하여 도어포켓부의 온도에 따라 제어부가 크로스플로우팬(25)의 작동을 제어함으로써 이루어질수 있으며, 본 발명은 어느방법을 채택하거나 무방하다.On the other hand, the cold air supply time of the door pocket portion after closing the freezer door may supply the appropriate time cold air according to the opening time of the door in the case of time control by a timer of the control unit, or by installing a temperature sensor separately from the door pocket portion According to the temperature control unit can be achieved by controlling the operation of the crossflow fan 25, the present invention may adopt any method.

한편, 도어포켓의 일정시간 또는 일정온도 이하가 될 때까지 냉기를 공급한 후에는, 제어부가 크로스플로우팬(25)을 정지시킴과 동시에 냉기분리판(9)에 설치된 전자석(3)에 공급되는 전원을 차단하여 스프링(4)에 의해 회동날개가 반시계방향으로 90° 회전하여 수직으로 복귀하고 냉동실 에어케튼용덕트인 상부귀환덕트(26')의 후단의 냉각기(10)측 개방구에는 냉장고의 제어부에 의해 제어되는 전자댐퍼(40)에 의해 상부귀환덕트(26')가 폐쇄되므로 도어가 닫힌 상태에서의 냉동실팬(21)에 의해 공급된 냉기는 기존의 냉동실 귀환덕트(26)에 의해 공급된 냉기는 기존의 냉동실 귀환덕트(26)를 통해 냉각기(10)측으로 복귀한다.On the other hand, after the cool air is supplied until the door pocket reaches a predetermined time or below a certain temperature, the control unit stops the crossflow fan 25 and is supplied to the electromagnet 3 installed on the cold air separator 9. By turning off the power supply, the rotating blade rotates 90 ° counterclockwise by the spring 4 to return vertically, and the opening of the cooler 10 side of the rear end of the upper return duct 26 ', which is a duct for the freezer air kettle, Since the upper feedback duct 26 ′ is closed by the electromagnetic damper 40 controlled by the controller, the cold air supplied by the freezer compartment fan 21 in the closed state is supplied by the existing freezer compartment feedback duct 26. The cold air returned to the cooler 10 side through the existing freezer return duct 26.

이상에서 상세히 설명한 바와 같이, 본 발명의 냉동실 에어커튼장치는, 냉동실 선반을 중공으로 형성하여 그후단 개구부에 크로스플로우팬을 설치하고 냉동실 상면 내부에 상부귀환덕트를 형성함으로써 냉동실 도어개방시 냉동실 전면에 에어커튼이 형성되어 외부온기의 냉동실로의 유입이 방지되고 도어개폐 직후에는 냉동실 도어포켓부로 냉기를 집중공급하여 도어포켓부의 온도상승을 신속하게 보상하도록한 우수한 발명이다.As described in detail above, the freezer compartment air curtain device of the present invention forms a freezer compartment shelf in a hollow manner, installs a crossflow fan in an opening portion of the freezer compartment, and forms an upper return duct in the upper surface of the freezer compartment to open the freezer compartment front when the freezer compartment door is opened. The air curtain is formed to prevent the introduction of external warming into the freezer compartment, and immediately after the door is opened, it is an excellent invention to quickly compensate for the temperature rise of the door pocket by supplying cold air to the freezer door pocket.

Claims (4)

냉동실(20)배면 중앙후측의 냉각기(10)전방에 냉각기와 인접하게 설치된 크로스플로우팬(25)과, 내부가 중공되어 후단은 상기크로스플로우팬(25)의 냉기토출구와 연통되고 선단은 도어포켓부측으로 개방된 냉기안내선반(8)과, 상기 선반(8)내부의 공간을 상하로 구획하며 도어포켓부측으로 연장 형성된 선단에 90°로 회동가능한 회동날개(1)를 설치한 냉기분리판(9)과, 냉동실 상부 내상과 외부 캐비넷사이에 선단은 냉동실 상측과 연통되도록 하향개방되고 후단은 냉각기 상측으로 하향개방된 상부 귀환덕트(26')로 구성되는 것을 특징으로하는 냉장고의 냉동실 에어커튼장치.The crossflow fan 25 installed adjacent to the cooler in the front of the cooler 10 at the rear center of the freezing compartment 20 and the inside thereof is hollowed out, and the rear end communicates with the cold air discharge outlet of the crossflow fan 25, and the front end has a door pocket. Cold air separation plate provided with a cold air guide shelf (8) opened to the side and the rotary wing (1) rotatable at 90 degrees to the front end formed by partitioning the space inside the shelf (8) up and down ( 9) and the freezer compartment air curtain device of the refrigerator, characterized in that the tip is opened downwardly in communication with the upper part of the freezer compartment and the upper end duct 26 'is opened downwardly to the upper side of the freezer compartment. . 제1항에 있어서, 상기귀환덕트(26')는 상기크로스플로팬(25)작동중에만 선택적으로 상부귀환덕트(26')를 개방하도록 제어되는 전자댐퍼(40)를 추가로 구비한 것을 특징으로 하는 냉장고의 냉동실 에어커튼장치.The method of claim 1, wherein the feedback duct 26 'further comprises an electromagnetic damper 40, which is controlled to selectively open the upper feedback duct 26' only during the cross flow fan 25 operation. Refrigerator freezer air curtain device. 제1항에 있어서, 상기 회동날개(1)는 냉기분리판(9)선단에 형성된 스토퍼(5)에 의해 하측이 냉기분리판(9)측으로만 회동되며 힌지축에 부설된 스프링(4)에 의해 수직을 유지하도록 탄압되는 것을 특징으로 하는 냉장고의 냉동실 에어커튼장치.According to claim 1, wherein the rotating blade (1) is rotated only by the stopper (5) formed at the tip of the cold air separation plate (9) is rotated only to the side of the cold air separation plate (9) to the spring (4) attached to the hinge shaft Refrigerator freezer air curtain device, characterized in that the pressurized to maintain the vertical. 제1항에 있어서, 상기회동날개(1)는 하측내면에 철편 또는 영구자석(2)이 설치되며 냉기분리판(9)하면에는 상기 철편 또는 영구자석(2)에 대응되게 전자석이 설치된 것을 특징으로하는 냉장고의 냉동실 에어커튼장치.According to claim 1, wherein the rotating blade (1) is installed on the lower inner surface iron or permanent magnet (2) and the cold separation plate (9) is characterized in that the electromagnet is installed corresponding to the iron piece or permanent magnet (2) Refrigerator freezer air curtain system.
KR1019970029908A 1997-06-30 1997-06-30 Freezing storage chamber air curtain device of a refrigerator KR100221541B1 (en)

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