KR200145880Y1 - Vomitting apparatus for cool air of a refrigerator - Google Patents

Vomitting apparatus for cool air of a refrigerator Download PDF

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Publication number
KR200145880Y1
KR200145880Y1 KR2019970004639U KR19970004639U KR200145880Y1 KR 200145880 Y1 KR200145880 Y1 KR 200145880Y1 KR 2019970004639 U KR2019970004639 U KR 2019970004639U KR 19970004639 U KR19970004639 U KR 19970004639U KR 200145880 Y1 KR200145880 Y1 KR 200145880Y1
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KR
South Korea
Prior art keywords
interior
air
evaporator
refrigerator
cold air
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KR2019970004639U
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Korean (ko)
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KR19980060554U (en
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박정희
배희경
장의영
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윤종용
삼성전자주식회사
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Priority to KR2019970004639U priority Critical patent/KR200145880Y1/en
Publication of KR19980060554U publication Critical patent/KR19980060554U/en
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Publication of KR200145880Y1 publication Critical patent/KR200145880Y1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08Arrangements 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04Preventing the formation of frost or condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/02Doors; Covers
    • F25D23/023Air curtain closures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details 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
    • F25D2317/06Details 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
    • F25D2317/067Details 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 air ducts
    • F25D2317/0672Outlet ducts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details 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
    • F25D2317/06Details 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
    • F25D2317/068Details 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
    • F25D2317/0683Details 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

Abstract

본 고안은 냉장고의 냉기 토출 장치에 관한 것으로, 냉장고 도어의 오픈시 고내를 차단하기 위한 에어커튼이 보다 확실하고 효과적으로 형성되도록 함과 동시에 에어커튼의 형성시 증발기의 표면에 발생되는 성에를 감소시킬 수 있도록 한 냉장고의 냉기 토출 장치를 제공하려는데 그 목적이 있다.The present invention relates to a cold air discharging device of a refrigerator, which allows the air curtain for blocking the interior of the refrigerator door to be formed more reliably and effectively, and at the same time reduces the frost generated on the surface of the evaporator when the air curtain is formed. It is an object of the present invention to provide a cold air discharge device of a refrigerator.

상기의 목적을 달성하기 위한 본 고안은 증발기의 전방에 설치된 증발기 커버에 의해 고내 안쪽에 형성되는 귀환유로와, 중간격의 내부에 형성되며 일측은 상기 귀환유로와 연통되며 타측으로는 토출구가 구비된 덕트로 구성된 냉기 토출 장치에 있어서, 상기 귀환유로에서 분기되며 일측은 상기 덕트와 연통되는 에어커튼용 유로와, 상기 귀환유로와 에어커튼용 유로에 각각 설치되는 팬으로 구성된 것을 특징으로 한다.The present invention for achieving the above object is a return flow path formed in the interior of the interior by the evaporator cover installed in front of the evaporator, and formed inside the intermediate space and one side is in communication with the return flow path and the other side is provided with a discharge port In the cold air discharge device consisting of, characterized in that the branch is branched from the return flow passage and the air curtain flow path in communication with the duct, and the fan is provided in the return flow path and the air curtain flow path, respectively.

이와같이 구성된 본 고안에 있어서, 도어의 오픈시 2개의 팬이 동시에 작동되어 에어커튼 형성을 위해 토출되는 냉기의 양이 증가되어 에어커튼이 보다 효과적으로 형성되며, 또한, 고내를 순환한 후 귀환하는 상온의 공기의 일부만이 증발기를 통과하게 되므로 증발기에 발생되는 성에의 양이 감소된다.In the present invention configured as described above, the two fans are operated simultaneously when the door is opened to increase the amount of cold air discharged to form the air curtain, thereby more effectively forming the air curtain, and returning the room temperature after returning to the inside of the refrigerator. Only part of the air passes through the evaporator, which reduces the amount of frost generated in the evaporator.

Description

냉장고의 냉기 토출 장치Cold air discharge device of the refrigerator

본 고안은 냉장고의 냉기 토출 장치에 관한 것으로, 더욱 상세하게는 도어의 오픈시 고내를 차단하기 위한 에어커튼이 보다 확실하고 효과적으로 형성되도록 함과 동시에 에어커튼의 형성시 증발기의 표면에 발생되는 성에를 감소시킬 수 있도록 한 냉장고의 냉기 토출 장치에 관한 것이다.The present invention relates to a cold air discharge device of a refrigerator, and more particularly, to ensure that the air curtain for blocking the inside of the refrigerator when the door is opened more reliably and effectively, and at the same time the frost generated on the surface of the evaporator when the air curtain is formed. It relates to a cold air discharge device of a refrigerator to be reduced.

일반적으로 냉장고는 고내 온도를 일정하게 유지하기 위하여 고내 온도에 따라 온,오프 제어되는 압축기와 도어의 개폐시 도어스위치의 온,오프 작동에 연동하여 제어되는 냉기순환팬이 작동하여 증발기를 통해 냉각된 냉기를 고내에 공급하는 것으로, 냉기순환팬의 작동에 의해 고내로 토출된 냉기는 고내를 순환하면서 고내의 온도를 낮추고 난 후 증발기로 다시 귀환된다.In general, the refrigerator is cooled by the evaporator by operating a compressor controlled on and off according to the temperature inside the refrigerator and a cold air circulation fan controlled in conjunction with the on / off operation of the door switch when opening or closing the door. By supplying cold air into the refrigerator, the cold air discharged into the refrigerator by the operation of the cold air circulation fan is returned to the evaporator after lowering the temperature in the refrigerator while circulating the refrigerator.

그러나, 고내에 식품등을 수납하거나 고내에 저장된 식품을 사용하기 위해 도어을 열게 되면 고내의 냉기가 고외로 유출되어 고내 온도가 상승하게 되며, 이와같이 고내의 온도가 상승할 경우 고내를 적정수준으로 유지하기 위해서는 압축기의 운전율을 높여야 하므로 그에 따른 많은 양의 전력이 소모되었다.However, when the door is opened to store food in the refrigerator or to use the food stored in the refrigerator, cold air flows out of the refrigerator and the temperature inside the refrigerator rises, so that the temperature inside the refrigerator is maintained at an appropriate level. In order to increase the operation rate of the compressor, a large amount of power is consumed accordingly.

따라서, 냉장고 도어가 열렸을 때 가능한 냉기가 고외로 누출되는 것을 억제할 필요가 있으며, 이와 관련하여 근래에는 냉장고 도어의 오픈시 고내와 고외를 차단하기 위한 공기벽, 소위 에어커튼을 형성하는 냉장고가 제공되고 있다.Therefore, it is necessary to suppress the leakage of cold air to the outside when the refrigerator door is opened. In connection with this, in recent years, a refrigerator is provided to form an air wall, so-called air curtain, to block the inside and outside of the refrigerator door when the refrigerator door is opened. It is becoming.

한편, 에어커튼이 제공된 종래의 냉장고는 도 1에 도시된 바와같이 고내의 안쪽에 수직으로 설치되며 중앙에 일체로 형성된 격벽(1)을 통해 전후방으로 토출유로(2)와 냉기실(3)을 각각 형성하는 증발기 커버(4)와, 고내와 냉기실(3)이 연통되도록 증발기 커버(4)의 하부에 천공되는 흡입구(5)와, 토출유로(2)의 전방에 형성되는 토출구(6)와, 냉기실(3)에 설치되는 증발기(7)와, 격벽(1)의 상부에 설치되어 증발기(7)를 통해 냉각된 냉기를 토출유로(2)로 송출시키는 냉기순환팬(8)과, 중간격(9)의 내부에 설치되며 일측은 냉기실(3)과 연통되며 타측으로는 직하방의 토출구(10')가 구비된 에어커튼용 덕트(10)와, 에어커튼용 덕트(10)의 선단부 즉, 도어(11)쪽에 설치되어 증발기(7)를 통해 냉각된 냉기를 강제로 순환시키는 크로스 플로우팬(12)으로 구성된다.On the other hand, the conventional refrigerator provided with the air curtain is installed vertically in the interior of the interior as shown in Figure 1 through the partition (1) formed integrally in the center to the discharge passage 2 and the cold air chamber (3) in the front and rear An evaporator cover 4 to be formed respectively, an intake port 5 perforated in the lower part of the evaporator cover 4 so that the inside of the refrigerator and the cold air chamber 3 communicate with each other, and a discharge port 6 formed in front of the discharge passage 2. And an evaporator (7) installed in the cold air chamber (3), and a cold air circulation fan (8) installed in the upper part of the partition wall (1) to send cool air cooled through the evaporator (7) to the discharge passage (2); , Installed inside the intermediate space (9) and one side is in communication with the cold air chamber (3) and the other side is provided with an air curtain duct (10 ') directly below, and the air curtain duct (10) It is composed of a cross flow fan 12 installed at the front end of the door 11, forcibly circulating the cold air cooled through the evaporator (7).

이와같이 구성된 종래 에어커튼이 형성된 냉장고에 있어서, 도어(11)가 닫혀 있을 경우에는 도어(11)와 연동하여 개폐되는 도어스위치(미도시)에 의하여 냉기순환팬(8)이 작동되어 증발기(7)를 통해 냉각된 냉기를 토출유로(2)로 송출한다.In the refrigerator having the conventional air curtain configured as described above, when the door 11 is closed, the cold air circulation fan 8 is operated by a door switch (not shown) which is opened and closed in conjunction with the door 11 to operate the evaporator 7. Cool air cooled through the air is sent to the discharge flow path (2).

토출유로(2)로 유입된 냉기는 각각의 토출구(6)를 통해 고내로 배출되며, 고내로 배출된 냉기는 고내를 순환하면서 고내의 온도를 설정 온도로 낮추고 난 후 흡입구(5)를 통해 다시 냉기실(3)로 유입된다.The cold air introduced into the discharge passage 2 is discharged into the inside of each discharge port 6, and the cold air discharged into the inside of the air flows through the inside of the refrigerator, lowers the temperature of the inside to the set temperature, and then again through the inlet 5 It flows into the cold air chamber 3.

반대로, 도어(11)를 열게 되면 도 1에서 보이는 바와같이 도어(11)와 연동하여 개폐되는 도어스위치(미도시)에 의하여 냉기순환팬(8)은 정지되고 반대로 크로스 플로우팬(12)은 온 되어 증발기(7)를 통해 냉각된 냉기를 에어커튼용 덕트(10)의 내부로 유입한다.On the contrary, when the door 11 is opened, the cold air circulation fan 8 is stopped and the cross flow fan 12 is turned on by a door switch (not shown) which is opened and closed in conjunction with the door 11 as shown in FIG. 1. The cool air cooled through the evaporator 7 is introduced into the air curtain duct 10.

에어커튼용 덕트(10)의 내부로 유입된 냉기는 에어커튼용 덕트(10)를 통해 이동되어 토출구(10')를 통해 고내로 토출된다.The cold air introduced into the air curtain duct 10 is moved through the air curtain duct 10 and discharged into the air through the discharge port 10 ′.

이 때, 토출구(10')를 통해 토출되는 냉기는 고내의 상부에서 직하방으로 낙하된다.At this time, the cold air discharged through the discharge port 10 'falls directly from the upper part of the inside of the refrigerator.

고내로 토출된 냉기는 고내를 순환하면서 온도가 상승하며 흡입구(5)를 통해 냉기실(3)로 유입된다.The cold air discharged into the inside of the refrigerator rises in temperature as it circulates in the refrigerator and flows into the cold chamber 3 through the suction port 5.

냉기실(3)로 유입된 상온의 공기는 증발기(7)를 통과하면서 냉각된 후 크로스 플로우팬(12)의 구동에 의해 계속해서 순환한다.The air at room temperature introduced into the cold air chamber 3 is cooled while passing through the evaporator 7 and then circulated continuously by the drive of the cross flow fan 12.

따라서, 종래 에어커튼이 제공되는 냉장고에 있어서, 에어커튼 형성을 위해 고내로 토출된 냉기는 고내를 순환하면서 온도가 상승하게 되며, 이와같은 상온의 공기는 다시 증발기를 통과하면서 냉각되는 것으로, 도어가 개방된 상태에서 순환하는 냉기는 온도 상승폭이 커지기 때문에 증발기 내부 냉매의 온도와 증발기를 통과하는 주위 공기의 온도차가 매우 커지게 되어 냉기실로 유입된 공기가 증발기를 통해 냉각되면서 증발기의 표면에는 많은 양의 성에가 얼어 붙게되며, 이러한 성에가 계속해서 발생할 경우 증발기의 냉각작용이 효율적으로 이루어지지 않는 문제점이 있었다.Therefore, in the refrigerator provided with the conventional air curtain, the cold air discharged into the air to form the air curtain is to increase the temperature while circulating the inside of the air, such that the air at room temperature is cooled while passing through the evaporator again, the door is Since the cold air circulating in the open state increases in temperature, the difference between the temperature of the refrigerant inside the evaporator and the ambient air passing through the evaporator becomes very large, and the air introduced into the cold chamber is cooled through the evaporator. There is a problem that the frost is frozen, if the frost continues to occur the cooling of the evaporator is not efficient.

또한, 에어커튼의 형성을 위해 사용되는 크로스 플로우팬은 흡입력이 약하여 에어커튼이 확실하게 형성되지 않았으며, 이러한 단점을 해소하기 위해서는 크로스 플로우팬의 사이즈를 크게 하거나 구동력을 더 주어야 하므로 그에 따른 비용이 상승하는 문제점이 있었다.In addition, the cross flow fan used for forming the air curtain has a weak suction force so that the air curtain is not formed reliably. In order to solve this disadvantage, the cross flow fan must be enlarged in size or give a driving force to increase the cost. There was a rising issue.

본 고안은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 도어의 오픈시 에어커튼을 형성한 후 증발기로 귀환하는 상온의 공기에 의해 증발기 표면에 발생되는 성에를 감소시켜 증발기에 의한 냉각작용이 보다 효과적으로 이루어질 수 있도록 하는데 그 목적이 있다.The present invention has been devised to solve the above problems, by forming an air curtain at the opening of the door and reducing the frost generated on the surface of the evaporator by air at room temperature returning to the evaporator, the cooling action by the evaporator is more The purpose is to make it effective.

본 고안의 다른 목적은 에어커튼의 형성을 위해 토출되는 냉기의 양을 증가시켜 에어커튼이 보다 효과적으로 형성될 수 있도록 한 냉장고의 냉기 토출 장치를 제공하려는데 그 목적이 있다.Another object of the present invention is to provide a cold air discharge device of a refrigerator in which an air curtain can be formed more effectively by increasing the amount of cold air discharged to form an air curtain.

도 1은 종래의 에어커튼 냉장고를 보인 종단면도,1 is a longitudinal sectional view showing a conventional air curtain refrigerator;

도 2는 본 고안의 설치상태를 나타낸 냉장고의 종단면도,Figure 2 is a longitudinal sectional view of the refrigerator showing an installation state of the present invention,

도 3은 본 고안에 의한 팬의 설치상태를 보인 냉장고의 횡단면도,3 is a cross-sectional view of the refrigerator showing a state of installation of the fan according to the present invention,

*도면의주요부분에사용된부호의설명** Description of the symbols used in the main parts of the drawings *

20 : 귀환유로 30 : 증발기 커버20: return flow path 30: evaporator cover

31 : 흡입구 40 : 냉기실31: inlet 40: cold chamber

41,81 : 팬출구 42 : 냉기순환용팬41,81: Fan outlet 42: Cold air circulation fan

50 : 증발기 60 : 중간격50: evaporator 60: intermediate space

70 : 덕트 71 : 토출구70: duct 71: discharge port

80 : 에어커튼용 유로 82 : 에어커튼용 팬80: flow path for air curtain 82: fan for air curtain

상기의 목적을 달성하기 위한 본 고안은 고내의 안쪽에 설치되며 다단의 흡입구가 구비된 증발기 커버와, 상기 증발기 커버에 의해 고내 안쪽에 형성되며 고내를 순환한 후 귀환하는 공기의 유동을 안내하는 귀환유로와, 상기 귀환유로에 설치되는 증발기와, 상기 귀환유로에 설치되어 증발기를 통해 냉각된 냉기를 송출시키는 냉기순환용팬과, 중간격의 내부에 형성되며 일측은 상기 귀환유로와 연통되며 타측으로는 토출구가 구비된 덕트를 포함한 냉장고의 냉기 토출 장치에 있어서,The present invention for achieving the above object is installed in the interior of the interior of the evaporator cover is provided with a multi-stage inlet, the evaporator cover is formed in the interior of the interior of the interior of the interior of the interior of the circulating air after the return to guide the flow of air A flow path, an evaporator installed in the return flow path, a cold air circulation fan installed in the return flow path for cooling cold air cooled through the evaporator, and formed inside the intermediate space, and one side communicates with the return flow path, and the other side discharge port. In the cold air discharge device of the refrigerator including a duct provided with,

상기 증발기를 통과하지 않도록 상기 귀환유로에서 분기되어 상기 덕트와 직접 연통되는 에어커튼용 유로와, 상기 에어커튼용 유로에 설치되어 도어의 개방시 온되는 에어커튼용 팬을 더 구비한 것을 특징으로 한다.And an air curtain flow path branched from the return flow passage so as not to pass through the evaporator and directly communicating with the duct, and an air curtain fan installed in the air curtain flow path and turned on when the door is opened. .

이와같이 구성된 본 고안에 있어서, 도어의 오픈시 상기 냉기순환용팬과 에어커튼용 팬이 동시에 온되어 상기 귀환유로로 유입된 공기중 일부는 증발기를 통과한 후 덕트로 송출되며, 일부 공기는 별도의 에어커튼용 유로로 유입된 후 상기 덕트로 송출되고, 덕트의 내부로 유입된 냉기는 토출구를 통해 고내로 토출된 후 다시 귀환하는 것으로, 고내를 순환하면서 온도가 상승한 공기의 일부만이 증발기를 통과하므로 증발기에 발생되는 성에의 양이 감소되며, 또한, 에어커튼의 형성을 위해 2개의 팬이 작동되므로 토출되는 냉기의 양이 증가되어 에어커튼이 보다 효과적으로 형성된다.In the present invention configured as described above, at the time of opening the door, the cold air circulation fan and the air curtain fan are turned on at the same time, so that some of the air introduced into the return flow path passes through the evaporator and is then sent out to the duct, and some air is separate air. After entering the curtain flow path, the air is discharged into the duct, and the cold air introduced into the duct is discharged into the inside of the duct through the discharge port, and then returned again. Since only a part of the air whose temperature rises while circulating inside the passage passes through the evaporator, the evaporator The amount of frost generated in the air is reduced, and also, since two fans are operated to form the air curtain, the amount of cold air discharged is increased to more effectively form the air curtain.

이하 첨부된 도면에 의거하여 본 고안에 의한 바람직한 실시예를 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2와 도 3에 도시된 바와같이 본 고안에 의한 냉장고의 냉기 토출 장치는 고내의 안쪽에 수직으로 설치되어 고내와 밀폐되는 귀환유로(20)를 형성하며 전면에 다단의 흡입구(31)가 구비된 증발기 커버(30)와, 증발기 커버(30)의 상부에 귀환유로(20)와 연통되면서 별도로 형성되며 전방에 팬출구(41)가 구비된 냉기실(40)과, 팬출구(41)에 설치되는 냉기순환용팬(42)과, 냉기실(40)에 설치되는 증발기(50)와, 중간격(60)의 내부에 설치되며 일측은 팬출구(41)를 통해 냉기실(40)과 연통되며 타측으로는 직하방의 토출구(71)가 구비된 덕트(70)와, 귀환유로의 상부에서 전방으로 분기되며 선단부의 팬출구(81)를 통해 덕트(70)와 연통되는 에어커튼용 유로(80)와, 에어커튼용 유로(80)의 팬출구(81)에 장착되는 에어커튼용 팬(82)로 구성된다.2 and 3, the cold air discharge device of the refrigerator according to the present invention is installed vertically inside the interior of the refrigerator to form a return flow path 20 which is closed with the interior of the refrigerator, and has a multi-stage suction port 31 on the front surface thereof. The evaporator cover 30, which is formed in communication with the return flow path 20 at the upper part of the evaporator cover 30, and is formed separately in the cold air chamber 40 having the fan outlet 41 in the front and the fan outlet 41. The cold air circulation fan 42 is installed, the evaporator 50 is installed in the cold air chamber 40, and is installed inside the intermediate space 60, one side is in communication with the cold air chamber 40 through the fan outlet 41. The other side is a duct 70 is provided with a discharge port 71 directly below, branched forward from the upper portion of the return flow path and communicates with the duct 70 through the fan outlet 81 of the front end (80) ) And an air curtain fan 82 mounted to the fan outlet 81 of the air curtain flow path 80.

냉기순환용팬(42)은 전원의 공급에 의해 온,오프되는 것으로 일반적인 냉기의 순환 및 도어의 오픈시 에어커튼의 형성을 위한 냉기를 순환시킨다.The cold air circulation fan 42 is turned on or off by supply of power, and circulates cold air for circulation of general cold air and formation of an air curtain when the door is opened.

에어커튼용 팬(82)은 도어스위치의 개폐에 따라 온,오프되는 것으로 도어를 오픈시키면 에어커튼용 팬(82)은 온되고, 도어를 닫게 되면 에어커튼용 팬(82)은 오프된다.The air curtain fan 82 is turned on and off according to the opening and closing of the door switch. When the door is opened, the air curtain fan 82 is turned on, and when the door is closed, the air curtain fan 82 is turned off.

냉기순환용팬(42)과 에어커튼용 팬(82)은 프로펠라 팬이다.The cold air circulation fan 42 and the air curtain fan 82 are propeller fans.

이하 본 고안에 의한 실시예의 작용을 설명하면 다음과 같다.Hereinafter will be described the operation of the embodiment according to the present invention.

전원의 공급으로 냉장고가 가동중인 상태에서 도어가 닫혀 있을 때에는 도어스위치(미도시)의 개폐에 따라 온,오프되는 에어커튼용 팬(82)은 오프되며, 동시에 냉기순환용팬(42)은 공급되는 전원에 의해 온 상태를 유지하므로 귀환유로(20) 내부의 공기는 냉기실(40)로 유입되고, 이 때, 귀환유로(20)에서 분기된 에어커튼용 유로(80)에는 에어커튼용 팬(82)이 오프되어 공기가 유입되지 않는다.When the door is closed while the refrigerator is operating by supplying power, the air curtain fan 82 which is turned on or off according to opening and closing of a door switch (not shown) is turned off, and at the same time, the cold air circulation fan 42 is supplied. Since the on-state is maintained by the power supply, the air inside the return flow path 20 flows into the cold air chamber 40. At this time, the air curtain flow path 80 branched from the return flow path 20 has a fan for an air curtain. 82) is off and no air is introduced.

냉기실(40)로 유입된 공기는 증발기(50)를 통과하면서 냉각되며, 이러한 냉기는 팬출구(41)를 통해 덕트(70)로 유입된다.The air introduced into the cold air chamber 40 is cooled while passing through the evaporator 50, and the cold air is introduced into the duct 70 through the fan outlet 41.

덕트(70)로 유입된 냉기는 덕트(70)를 따라 유동하면서 선단부에 위치된 토출구(71)를 통해 고내의 상부에서 직하방으로 토출된다.The cold air introduced into the duct 70 is discharged directly from the upper part of the inside of the refrigerator through the discharge port 71 located at the tip while flowing along the duct 70.

고내로 토출된 냉기는 고내를 순환하면서 고내에 저장된 식품등을 냉각시키면서 온도가 상승하게 된다.The cold air discharged into the refrigerator circulates in the refrigerator and the temperature rises while cooling the food stored in the refrigerator.

고내를 순환한 냉기는 증발기 커버(30)의 흡입구(31)를 통해 귀환유로(20)로 유입된다.The cold air circulated in the furnace flows into the return flow path 20 through the suction port 31 of the evaporator cover 30.

귀환유로(20)로 유입된 공기는 냉기순환용팬(42)에 의해 다시 냉기실(40)로 귀환 및 순환한다.The air introduced into the return flow path 20 is returned and circulated back to the cold air chamber 40 by the cold air circulation fan 42.

반대로, 닫혀 있던 도어를 열게 되면 도어스위치(미도시)의 온,오프에 따라 작동되는 에어커튼용 팬(82)은 온되어 에어커튼용 팬(82)과 냉기순환용팬(42)은 동시에 온된다.On the contrary, when the closed door is opened, the air curtain fan 82 which is operated according to the on / off of the door switch (not shown) is turned on so that the air curtain fan 82 and the cold air circulation fan 42 are turned on at the same time. .

각 팬(42)(82)의 작동에 의해 귀환유로(20) 내부의 공기중 일부는 증발기(50)가 설치된 냉기실(40)로 유입되며, 나머지 공기는 귀환유로(20)에서 분기된 별도의 에어커튼용 유로(80)로 유입된다.By operating each of the fans 42 and 82, some of the air inside the return flow path 20 flows into the cold chamber 40 in which the evaporator 50 is installed, and the remaining air is separated from the return flow path 20. Flows into the air curtain passage (80).

냉기실(40)로 유입된 공기는 증발기(50)를 통과하면서 냉각된 후 덕트(70)의 내부로 유입되며, 동시에, 에어커튼용 유로(80)로 유입된 공기는 냉각작용없이 덕트(70)의 내부로 유입된다.The air introduced into the cold chamber 40 is cooled while passing through the evaporator 50 and then introduced into the duct 70. At the same time, the air introduced into the air curtain flow path 80 is duct 70 without cooling. Flows into).

덕트(70)로 유입된 공기는 도어가 닫혀 있을 때와 마찬가지로 토출구(71)를 통해 고내의 상부에서 직하방으로 토출되면서 에어커튼을 형성한다.Air introduced into the duct 70 is discharged from the upper portion of the upper and lower directly through the discharge port 71, similar to when the door is closed to form an air curtain.

에어커튼을 형성하면서 고내의 하부로 낙하하는 냉기는 고내를 순환하면서 온도가 상승하며 다시 흡입구(31)를 통해 귀환유로(20)로 유입된다.Cold air falling to the lower part of the inside of the air while forming the air curtain is circulated in the inside of the temperature rises and flows back into the return flow path 20 through the suction port (31).

귀환유로(20)로 유입된 공기는 상술한 바와같이 각각의 팬(42)(82)에 의해 일부는 증발기(50)를 통과한 후 덕트(70)로 유입되며, 일부는 증발기(50)를 거치지 않고 덕트(70)로 유입 및 순환한다.The air introduced into the return flow path 20 is introduced into the duct 70 after a part passes through the evaporator 50 by the respective fans 42 and 82 as described above, and part of the air flows into the duct 70. Inflow and circulation into the duct 70 without passing through.

따라서, 이러한 본 고안에 의해 에어커튼의 형성을 위해 2개의 프로펠라 팬이 동시에 작동되어 토출되는 냉기의 양이 증가됨은 물론, 토출되는 냉기의 방향성이 확실해지며, 종래와 같이 크로스 플로우팬을 사용할 때보다 비용이 절감된다.Therefore, the present invention increases the amount of cold air discharged by operating two propeller fans at the same time to form an air curtain, and also ensures the directivity of the cold air discharged, compared to when using a cross flow fan as in the prior art. The cost is reduced.

또한, 에어커튼을 형성한 후 귀환 및 순환하는 상온의 공기중 일부만이 증발기를 통과하게 되므로 증발기 내부 냉매의 온도와 증발기 외부 공기와의 온도차가 종래보다 작아지므로 증발기의 표면에 발생되는 성에의 양이 감소된다.In addition, since only a part of the room temperature air returning and circulating after forming the air curtain passes through the evaporator, the temperature difference between the temperature of the refrigerant inside the evaporator and the air outside the evaporator is smaller than before, so the amount of frost generated on the surface of the evaporator is reduced. Is reduced.

이상에서 살펴본 바와같이 본 고안에 의해 도어의 오픈시 두 개의 프로펠라 팬을 이용하여 많은 양의 냉기를 토출시키므로 도어의 오픈시 고내를 차단하기 위한 에어커튼이 보다 확실하고 효과적으로 형성된다.As described above, since the present invention discharges a large amount of cold air by using two propeller fans when the door is opened, an air curtain for blocking the interior of the door when the door is opened is more surely and effectively formed.

또한, 에어커튼의 형성을 위해 고내로 토출된 후 상온으로 변화하여 증발기로 유입되는 공기의 양이 감소되어 증발기의 표면에 발생되는 성에의 양이 감소되므로 성에에 의한 냉각 성능의 저하를 감소시킬 수 있는 이점이 있다.In addition, since the amount of air flowing into the evaporator is reduced by changing to room temperature after being discharged into the air to form an air curtain, the amount of frost generated on the surface of the evaporator is reduced, thereby reducing the deterioration of cooling performance due to frost. There is an advantage to that.

Claims (1)

고내의 안쪽에 설치되며 다단의 흡입구가 구비된 증발기 커버와, 상기 증발기 커버에 의해 고내 안쪽에 형성되며 고내를 순환한 후 귀환하는 공기의 유동을 안내하는 귀환유로와, 상기 귀환유로에 설치되는 증발기와, 상기 귀환유로에 설치되어 증발기를 통해 냉각된 냉기를 송출시키는 냉기순환용팬과, 중간격의 내부에 형성되며 일측은 상기 귀환유로와 연통되며 타측으로는 토출구가 구비된 덕트를 포함한 냉장고의 냉기 토출 장치에 있어서,An evaporator cover installed in the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior of the interior. And a cold air circulation fan installed in the return flow path for transmitting cold air cooled through an evaporator, and formed inside the intermediate space, one side of which is in communication with the return flow path, and the other side discharges cold air from a refrigerator including a duct provided with a discharge port. In the apparatus, 상기 증발기를 통과하지 않도록 상기 귀환유로에서 분기되어 상기 덕트와 직접 연통되는 에어커튼용 유로와, 상기 에어커튼용 유로에 설치되어 도어의 개방시 온되는 에어커튼용 팬을 더 구비한 것을 특징으로 하는 냉장고의 냉기 토출 장치.And an air curtain flow passage branched from the return flow passage so as not to pass through the evaporator and directly communicating with the duct, and an air curtain fan installed in the air curtain flow passage and turned on when the door is opened. Cold air discharge device of the refrigerator.
KR2019970004639U 1997-03-13 1997-03-13 Vomitting apparatus for cool air of a refrigerator KR200145880Y1 (en)

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