KR200296385Y1

KR200296385Y1 - Refrigerator

Info

Publication number: KR200296385Y1
Application number: KR2019970022513U
Authority: KR
Inventors: 임병한
Original assignee: 삼성전자 주식회사
Priority date: 1997-08-20
Filing date: 1997-08-20
Publication date: 2003-03-03
Also published as: KR19990009313U

Abstract

본 고안은, 압축기와, 증발기와, 냉동실과 냉장실을 형성하는 캐비넷을 가진 냉장고에 관한 것으로서, 상기 냉동실로 상기 증발기에서 생성된 냉기를 송풍하는 냉동실 송풍팬과, 상기 냉장실로 상기 증발기에서 생성된 냉기를 송풍하는 냉장실 송풍팬과, 상기 냉동실과 냉장실로 향한 각각의 냉기토출구를 갖는다. 이에 의해, 냉장고의 냉각효율을 높이고, 증발기의 제상횟수를 줄일 수 있다.The present invention relates to a refrigerator having a compressor, an evaporator, a cabinet forming a freezer compartment and a refrigerating compartment, a freezer compartment blower fan for blowing cold air generated in the evaporator to the freezer compartment, and cold air generated in the evaporator in the refrigerating compartment. The refrigerator has a refrigerating chamber blowing fan, and each cold air outlet toward the freezing chamber and the refrigerating chamber. As a result, the cooling efficiency of the refrigerator can be increased, and the number of defrosting of the evaporator can be reduced.

Description

Refrigerator

본 고안은 냉장고에 관한 것으로서, 특히, 냉각효율을 향상시킨 냉장고에 관한 것이다.The present invention relates to a refrigerator, and more particularly, to a refrigerator having improved cooling efficiency.

냉장고는 냉장실내에 수용된 음식물을 냉각하기 위한 냉동시스템을 구비한다. 일반적인 냉동시스템은, 냉매를 압축하는 압축기와, 압축기로부터의 냉매를 응축하는 응축기, 및 응축기로부터의 냉매를 증발시켜 냉기를 발생시키는 증발기로 이루어진다. 증발기는 그 내부를 흐르는 냉매의 증발잠열에 의해 주변의 공기를 냉각시키며, 그 냉기는 송풍팬에 의해 냉동실 및 냉장실로 공급된다. 이 때, 증발기의 표면은 온도가 낮고 그에 따라 주위공기의 상대습도가 높아져서, 주위공기내의 습기가 증발기의 표면에 얼어붙어 성에를 형성한다.The refrigerator includes a refrigeration system for cooling food stored in the refrigerator compartment. A general refrigeration system includes a compressor for compressing a refrigerant, a condenser for condensing the refrigerant from the compressor, and an evaporator for evaporating the refrigerant from the condenser to generate cold air. The evaporator cools the surrounding air by the latent heat of evaporation of the refrigerant flowing therein, and the cold air is supplied to the freezing compartment and the refrigerating compartment by the blowing fan. At this time, the surface of the evaporator has a low temperature and accordingly the relative humidity of the ambient air increases, so that the moisture in the ambient air freezes on the surface of the evaporator to form frost.

종래의 냉장고는 도3에 도시한 바와 같이, 하나의 증발기(50)와 하나의 송풍팬(100)을 가지고 냉장실(12)과 냉동실(11)에 각각 냉기를 송풍하는 전형적인 타입의 냉장고와, 냉장실과 냉동실용 증발기 및 송풍기를 각각 구비하여 냉동실 및 냉장실에 냉기를 각각 송풍하는 독립냉각방식 냉장고 타입이 있다.As shown in FIG. 3, the conventional refrigerator has a typical type of refrigerator having one evaporator 50 and one blower fan 100 to blow cold air into the refrigerating chamber 12 and the freezing chamber 11, respectively, and a refrigerating chamber. And a freezer compartment evaporator and a blower, respectively, there is an independent cooling type refrigerator type for blowing cold air into the freezer compartment and the refrigerating compartment, respectively.

전자의 경우에는 냉동실(11)에 위치한 온도조절기에서 유출되는 공기의 온도를 감지하여 설정온도보다 높으면 압축기(30)가 구동되고 냉동실(11) 내에 있는 송풍팬(100)이 작동하여 냉동실(11)과 냉장실(12) 모두를 냉각시킨다. 그러나 설정온도보다 낮으면 압축기(30) 구동 및 송풍팬(100)의 작동은 중지된다.In the former case, when the temperature of the air flowing out of the temperature controller located in the freezer compartment 11 is detected and higher than the set temperature, the compressor 30 is driven and the blower fan 100 in the freezer compartment 11 is operated to freeze the compartment 11. And both of the refrigerating chambers 12 are cooled. However, when the temperature is lower than the set temperature, the driving of the compressor 30 and the operation of the blower fan 100 are stopped.

한편, 냉장실(12)의 온도조절기는 냉동실 송풍팬(100)에 의해 냉장실(12)로 공급되는 냉기의 양을 온도에 따라 조절하는 댐퍼(40)의 역할을 한다. 즉, 일반적으로 냉장실냉기 흡입구와 냉동실 냉기 흡입구(60)를 공동으로 사용하는 구조이므로 송풍팬(100)이 구동할때 냉장실(12)의 상대적으로 고온인 공기가 냉동실(11)로 유입되므로 냉동실(11) 온도의 갑작스런 상승을 초래하는 문제점이 있다. 이와 더불어 냉장실(12)의 음식냄새가 냉동실(11)로 유입되는 문제점도 있다.On the other hand, the temperature controller of the refrigerating chamber 12 serves as a damper 40 for controlling the amount of cold air supplied to the refrigerating chamber 12 by the freezing chamber blowing fan 100 according to the temperature. That is, in general, since the refrigerator compartment cold air intake port and the freezer compartment cold air intake port 60 are jointly used, the relatively high temperature air of the refrigerating compartment 12 is introduced into the freezer compartment 11 when the blower fan 100 is driven. 11) There is a problem that causes a sudden rise in temperature. In addition, there is a problem that the food smell of the refrigerating chamber 12 is introduced into the freezing chamber (11).

또한, 자주 열리게 되는 냉장실(12)은 고내의 온도의 상승을 초래하므로 냉장실(12)만 냉각하지 않고 냉동실(11)까지 냉각하게 되므로 비효율적이며, 냉장고 외부의 공기가 고내로 유입되므로 냉동실(11) 온도 상승 및 증발기(50)에 착상이 많아져 증발기(50)의 효율을 저하시키는 문제점이 있다.In addition, since the refrigerating chamber 12 which is frequently opened causes an increase in the temperature in the refrigerator, the refrigerator compartment 12 is cooled to the freezing chamber 11 without cooling only the refrigerating chamber 12, and thus is inefficient. There is a problem of increasing the temperature and increasing the number of ideas in the evaporator 50, thereby lowering the efficiency of the evaporator 50.

이러한 문제점을 해결하기 위하여 창안된 것이 독립냉각방식 냉장고이다. 이 냉장고 타입의 경우 종래의 냉장고에 비해 냉동실과 냉장실이 분리되어 냉장실의 음식냄새 등이 냉동실로 유입되지 않고 또한 각 냉각실이 독립적으로 온도조절이 가능하게 하여 에너지 효율을 높임과 동시에 냉장실의 비교적 고온의 냉기가 냉동실에 유입되지 않아 제상횟수를 줄일 수 있게 되는 장점이 있다.Invented to solve this problem is an independent cooling refrigerator. In the case of the refrigerator type, the freezer compartment and the refrigerating compartment are separated from the conventional refrigerators, and the food smell of the refrigerating compartment is not introduced into the freezer compartment, and each of the cooling compartments can be independently temperature controlled, thereby improving energy efficiency and relatively high temperature in the refrigerator compartment. The cold air does not flow into the freezer has the advantage of reducing the number of defrosting.

그러나, 이러한 타입의 냉장고는 전술한 장점에도 불구하고, 냉장실용 증발기 및 냉동실용 증발기를 별도로 구비함으로써, 이에 따라 부품수가 많아지고 작업 공수가 늘어나고 또한 제조단가가 높아지는 문제점이 있다.However, the refrigerator of this type has a problem in that the refrigerator compartment evaporator and the freezer compartment evaporator are separately provided in spite of the above-described advantages, thereby increasing the number of parts, the number of labors, and the manufacturing cost.

본 고안의 목적은, 하나의 증발기를 구비하면서도 에너지 효율을 높일 수 있고 또한 증발기의 제상횟수를 줄일 수 있는 냉장고를 제공하는 것이다.It is an object of the present invention to provide a refrigerator having one evaporator while improving energy efficiency and reducing the number of defrosts of the evaporator.

도 1은 본 고안에 따른 냉장고의 개략 부분단면도1 is a schematic partial cross-sectional view of a refrigerator according to the present invention

도 2는 도1의 냉장고의 제어블록도2 is a control block diagram of the refrigerator of FIG.

도 3은 종래의 냉장고의 개략 단면도이다.3 is a schematic cross-sectional view of a conventional refrigerator.

*도면의 주요부분에 대한 부호의 간단한 설명** Brief description of symbols for the main parts of the drawings *

11 : 냉동실 12 : 냉장실11: freezer 12: cold storage room

31 : 냉동실 온도센서 32 : 냉장실 온도센서31: freezer temperature sensor 32: refrigerator temperature sensor

41 : 냉동실 온도조절기 41 : 냉장실 온도조절기41: freezer compartment temperature controller 41: refrigerator compartment temperature controller

50 : 증발기 101 : 냉동실 송풍팬50: evaporator 101: freezer blowing fan

102 : 냉장실 송풍팬102: refrigerating chamber blowing fan

상기 목적은, 본 고안에 따르면, 압축기와, 증발기와, 냉동실과 냉장실을 형성하는 캐비넷을 가진 냉장고에 있어서, 상기 냉동실로 상기 증발기에서 생성된 냉기를 송풍하는 냉동실 송풍팬과, 상기 냉장실로 상기 증발기에서 생성된 냉기를 송풍하는 냉장실 송풍팬과, 상기 냉동실과 냉장실로 향한 각각의 냉기토출구를 갖는 것을 특징으로 하는 냉장고에 의해 달성된다.The object of the present invention is a refrigerator having a compressor, an evaporator, and a cabinet forming a freezer compartment and a refrigerator compartment, a freezer compartment blower fan for blowing cold air generated in the evaporator to the freezer compartment, and the evaporator to the refrigerator compartment. It is achieved by a refrigerator, characterized in that the refrigerator having a refrigerating chamber blower fan for blowing the cold air generated in the cold air, and each of the cold air outlet toward the freezer compartment and the refrigerating compartment.

여기서, 상기 냉동실과 냉장실의 후방벽내에는 냉동실 덕트와 냉장실 덕트가 각각 설치되어 있고, 상기 증발기는 상기 양 덕트에 걸쳐 배치되는 것이 바람직하다. 그리고, 상기 냉동실과 냉장실 사이에는 격벽이 설치되어 있으며, 상기 격벽의 냉동실측과 냉장실측에는 각 복귀덕트가 상기 냉동실 덕트와 냉장실 덕트와 각각 연통되게 형성되며, 상기 각 복귀덕트의 각 유입구는 상기 냉동실과 냉장실의 각 도어개구측에 배치된 것이 바람직하다.Here, it is preferable that a freezing compartment duct and a refrigerating compartment duct are respectively provided in the rear walls of the freezing compartment and the refrigerating compartment, and the evaporator is disposed over the both ducts. In addition, a partition wall is provided between the freezer compartment and the refrigerating compartment, and each return duct is formed in communication with the freezer compartment duct and the refrigerating compartment duct on the freezer compartment side and the refrigerating compartment side of the barrier rib, respectively. It is preferable to arrange | position to each door opening side of a refrigerator compartment.

한편, 본 고안의 다른 분야에 따르면, 압축기와, 증발기와, 냉동실과 냉장실을 형성하는 캐비넷을 가진 냉장고에 있어서, 상기 냉동실의 실내온도를 검출하는 냉동실 온도센서와, 상기 냉장실의 실내온도를 검출하는 냉장실 온도센서와, 상기 냉동실의 실내온도를 조절하는 냉동실 온도조절기와, 상기 냉장실의 실내온도를 조절하는 냉장실 온도조절기와, 상기 냉동실로 상기 증발기에서 생성된 냉기를 송풍하는 냉동실 송풍팬과, 상기 냉장실로 상기 증발기에서 생성된 냉기를 송풍하는 냉장실 송풍팬과, 상기 냉동실 온도센서 및 냉장실 온도센서의 검출실내온도와 상기 냉동실 온도조절기 및 냉장실 온도조절기의 값을 비교하여 상기 냉동실 송풍팬과 상기 냉장실 송풍팬을 각각 구동시키는 제어부를 포함하고 있는 것을 특징으로 하는 냉장고에 의해서도 달성될 수 있다.On the other hand, according to another field of the present invention, in the refrigerator having a compressor, an evaporator, a cabinet forming a freezer compartment and a refrigerating compartment, a freezer compartment temperature sensor for detecting the indoor temperature of the freezer compartment, and detecting the room temperature of the refrigerating compartment A refrigerator compartment temperature sensor, a freezer compartment temperature controller for controlling an indoor temperature of the freezer compartment, a refrigerator compartment temperature controller for controlling an indoor temperature of the refrigerator compartment, a freezer compartment blower fan for blowing cold air generated in the evaporator to the freezer compartment, and the refrigerator compartment The refrigerator compartment blower fan and the refrigerator compartment blower fan by comparing the detection chamber temperature of the refrigerator compartment blower fan, the freezer compartment temperature sensor and the refrigerator compartment temperature sensor, and the values of the freezer compartment temperature controller and the refrigerator compartment temperature controller. The refrigerator includes a control unit for driving each of the Calligraphy can be achieved.

여기서, 상기 냉동실과 냉장실의 후방벽내에는 냉동실 덕트와 냉장실 덕트가 각각 설치되어 있고, 상기 증발기는 상기 양 덕트에 걸쳐 배치되는 것이 바람직하다. 그리고, 상기 냉동실과 냉장실 사이에는 격벽이 설치되어 있으며, 상기 격벽의 냉동실측과 냉장실측에는 각 복귀덕트가 상기 냉동실 덕트와 냉장실 덕트와 각각연통되게 형성되며, 상기 각 복귀덕트의 유입구는 상기 냉동실과 냉장실의 각 도어개구측에 배치된 것이 바람직하다.Here, it is preferable that a freezing compartment duct and a refrigerating compartment duct are respectively provided in the rear walls of the freezing compartment and the refrigerating compartment, and the evaporator is disposed over the both ducts. A partition wall is installed between the freezer compartment and the refrigerating compartment, and each return duct is formed in communication with the freezer compartment duct and the refrigerating compartment duct on the freezer compartment side and the refrigerating compartment side of the barrier rib, respectively. It is preferable to arrange | position at each door opening side of the.

이하에서, 본 고안의 일실시예를 나타내는 첨부도면을 참조하여 상세히 설명한다. 본 고안의 도면에서 종래와 같은 부분 및 부품에 대해서는 동일한 부호를 부여하였다.Hereinafter, with reference to the accompanying drawings showing an embodiment of the present invention will be described in detail. In the drawings of the present invention, the same reference numerals are given to the same parts and components as in the prior art.

도 1은 본 고안에 따라 하나의 증발기와 두 개의 송풍팬을 가진 냉장고의 개략적인 부분단면도이다. 냉장고는 냉동실(11)과 냉장실(12)을 형성하고 있으며, 하나의 증발기(50)가 냉동실(11)과 냉장실(12)의 후방에 형성된 냉동실 덕트(21)와 냉장실 덕트(22)에 걸쳐서 설치되어 있다. 그리고, 냉동실(11)과 냉장실(12)의 배면에는 냉동실 송풍팬(101)과 냉장실 송풍팬(102)의 설치되어 있고, 이들 송풍팬(101,102)은 증발기(50)에서 열교환된 냉기를 각 냉각실(11,12)로 송풍하는 역할을 하고 있다.1 is a schematic partial cross-sectional view of a refrigerator having one evaporator and two blowing fans according to the present invention. The refrigerator forms a freezer compartment 11 and a refrigerating compartment 12, and one evaporator 50 is installed over the freezer compartment duct 21 and the refrigerating compartment duct 22 formed at the rear of the freezer compartment 11 and the refrigerating compartment 12. It is. The freezer compartment 11 and the refrigerating compartment 12 are provided at the rear of the freezer compartment blower fan 101 and the refrigerating compartment blower fan 102, and these blower fans 101 and 102 each cool the heat exchanged by the evaporator 50. It acts to blow air into the chambers 11 and 12.

각 냉각실(11,12)에는 냉동실 온도센서(31)와 냉장실 온도센서(32)가 설치되어 있다. 그리고, 각 온도센서(31,32)로부터의 신호값에 따라 압축기와 송풍팬의 구동을 제어하며, 냉동실 및 냉장실의 온도를 적절한 온도로 유지하기 위한 냉동실 온도조절기(41)와 냉장실 온도조절기(42)가 각각 구비되어 있다. 여기서 각 온도센서(31,32)와 각 온도조절기(41,42)의 위치는 본 고안의 요점이 아니므로 개략적으로 도시하고 있다.Each of the cooling chambers 11 and 12 is provided with a freezing chamber temperature sensor 31 and a refrigerating chamber temperature sensor 32. The freezer compartment temperature controller 41 and the refrigerator compartment temperature controller 42 for controlling the operation of the compressor and the blower fan according to signal values from the temperature sensors 31 and 32, and for maintaining the temperature of the freezer compartment and the refrigerator compartment at an appropriate temperature. Are respectively provided. Here, the positions of the respective temperature sensors 31 and 32 and the respective temperature controllers 41 and 42 are not illustrated in the present invention, and thus are schematically illustrated.

한편, 냉동실(11)의 후면에는 냉동실 냉기토출구(51)가 형성되어 있고, 냉동실(11)의 도어를 향한 하단에는 냉동실 냉기 흡입구(61)가 있어 증발기(50)의 냉기는 냉동실 송풍팬(101)에 의해 냉동실(11) 후면에서 흡입되어 냉동실 도어(71)쪽 하단으로 복귀되도록 냉동실(11)의 하단에는 냉동실복귀덕트(81)가 형성되어 있다.Meanwhile, a freezer compartment cold air outlet 51 is formed at the rear side of the freezer compartment 11, and a freezer compartment cold air intake port 61 is provided at a lower end of the freezer compartment 11 toward the door so that the cold air of the evaporator 50 is freezer blower fan 101. The freezer compartment return duct 81 is formed at the bottom of the freezer compartment 11 so as to be sucked from the rear surface of the freezer compartment 11 to return to the bottom of the freezer compartment door 71.

냉장실(12)의 냉기토출구 역시 냉장실(12)의 후면에 형성되어 있고, 냉장실(12)의 냉기 흡입구는 냉장실(12)의 냉장실 도어(72)쪽 상단에 형성되어 있어, 냉장실(12)의 냉기는 후면으로 들어와서 도어(72)쪽 상단으로 복귀되도록 냉장실(12)의 상단에는 냉장실 복귀덕트(82)가 형성되어 있다. 또한 냉장실 복귀덕트(82)와 냉동실 복귀덕트(81)사이에는 단열격벽(90)이 있어 냉장실(12)의 냉기와 냉동실(11)의 냉기가 서로 혼합되지 않도록 단열분리시키고 있다.The cold air outlet of the refrigerating compartment 12 is also formed at the rear side of the refrigerating compartment 12, and the cold air inlet of the refrigerating compartment 12 is formed at the upper end of the refrigerating compartment door 72 side of the refrigerating compartment 12, The refrigerating chamber return duct 82 is formed at the upper end of the refrigerating chamber 12 to return to the upper end of the door 72. In addition, between the refrigerating chamber return duct 82 and the freezing chamber return duct 81, there is an insulating partition 90 to insulate and separate the cold of the refrigerating chamber 12 and the cold air of the freezing chamber 11 so as not to mix with each other.

이러한 냉장고의 제어부는, 도 3의 도시된 바와 같이, 냉동실온도센서(31)와 냉장실온도센서(32)로부터 감지된 온도를 입력받으며, 이 감지값에 기초하여 냉동실 온도조절기(41)와 냉장실 온도조절기(42)에 입력된 값과 비교하여 압축기구동회로(35)와 냉동실송풍팬구동회로(111) 및 냉장실송풍팬구동회로(112)로 신호를 보내어 압축기(10)와 각 송풍팬(101,102)을 구동한다.As shown in FIG. 3, the controller of the refrigerator receives a temperature detected from the freezer compartment temperature sensor 31 and the refrigerator compartment temperature sensor 32, and based on the detected value, the freezer compartment temperature controller 41 and the refrigerator compartment temperature. Signals are sent to the compressor driving circuit 35, the freezing chamber blowing fan driving circuit 111, and the refrigerating room blowing fan driving circuit 112 by comparing the values input to the controller 42 to the compressor 10 and each blowing fan 101,102. To drive.

즉, 냉동실 온도조절기(41)에 따라 냉동실(11) 온도가 설정온도 이상이면, 압축기(30)가 구동하고 냉동실 송풍팬(101)이 작동하게 된다. 그러면, 압축기에서 압축된 냉매는 도시않은 응축기에서 응축되어 증발기(50)로 유입되며, 냉동실(11)의 냉기는 냉동실 냉기 흡입구(61)를 통해 유입되어 증발기(50)의 상부와 열교환하게 되며, 열교환된 냉기는 냉동실 냉기 토출구(51)를 통해 냉동실내로 토출된다.That is, when the freezer compartment 11 temperature is higher than the set temperature according to the freezer compartment temperature controller 41, the compressor 30 is driven and the freezer compartment blower fan 101 operates. Then, the refrigerant compressed in the compressor is condensed in a condenser (not shown) and introduced into the evaporator 50, and the cold air of the freezing compartment 11 is introduced through the freezing compartment cold air inlet 61 to exchange heat with the upper portion of the evaporator 50. The heat exchanged cold air is discharged into the freezing chamber through the freezing chamber cold air discharge port 51.

한편, 제어부는 냉장실 온도조절기(42)에 설정된 값과 냉장실 온도센서(32)에 의해 감지된 값을 비교하여 냉장실 송풍팬(102)의 동작을 온오프하게 된다. 이때, 냉동실(11) 온도가 설정온도 이하이더라도 냉장실 온도센서(32)에 의해 감지된 냉장실(12)의 온도가 설정온도 이상이면 기존 냉장고와 달리 압축기(30)는 계속 구동하게 된다.Meanwhile, the controller compares the value set in the refrigerating compartment temperature controller 42 with the value sensed by the refrigerating compartment temperature sensor 32 to turn off the operation of the refrigerating compartment blowing fan 102. At this time, even if the temperature of the freezer compartment 11 is lower than the set temperature, if the temperature of the refrigerating compartment 12 sensed by the refrigerating compartment temperature sensor 32 is higher than the set temperature, the compressor 30 continues to operate unlike the existing refrigerator.

이와 같이, 냉동실 송풍팬(101)과 냉장실 송풍팬(102)의 작동은, 각 실내의 온도센서(31,32) 및 온도조절기(41,42)에 의해서 정해지게 된다. 따라서, 자주 개폐되어 고내온도 상승이 잦은 냉장실(12)을 냉각하는 경우에 단지 냉장실송풍팬(102)으로 냉장실(12)에만 냉기를 공급하게 되므로 냉각효율을 상승시킬 수 있게된다.In this way, the operation of the freezing compartment blowing fan 101 and the refrigerating compartment blowing fan 102 is determined by the temperature sensors 31 and 32 and the temperature controllers 41 and 42 in each room. Therefore, in the case of cooling the refrigerating compartment 12 frequently opened and closed frequently, the cooling air is supplied only to the refrigerating compartment 12 by the refrigerating chamber blowing fan 102, thereby increasing the cooling efficiency.

이상에서 본 고안의 일실시예를 설명하였으나, 냉기토출구 및 냉기 흡입구의 위치, 각 송풍팬의 방향 등은 적절히 변경할 수 있다.Although one embodiment of the present invention has been described above, the positions of the cold air discharge port and the cold air suction port, the direction of each blower fan, and the like may be appropriately changed.

이상에서 설명한 바와 같이, 본 고안에 따르면, 각 냉각실에 해당하는 별도의 송풍팬을 구비하고 있으므로 냉각효율을 높일 수 있으며, 냉동실과 냉장실이 상호 단열분리되어 있으므로 냉장실의 고온의 냉기가 냉동실로 유입되는 것을 차단하여 증발기의 온도가 상승하는 것을 방지하며, 동시에 냉장실의 습한 냉기가 증발기에 착상하여 성에가 발생하는 현상을 감소시킬 수 있다. 더불어 냉장실의 음식냄새의 냉동실로의 유입을 방지할 수 있다.As described above, according to the present invention, since a separate blower fan corresponding to each cooling chamber is provided, the cooling efficiency can be improved, and since the freezer compartment and the refrigerator compartment are mutually insulated from each other, high temperature cold air of the refrigerator compartment flows into the freezer compartment. This prevents the temperature of the evaporator from rising, and at the same time, it is possible to reduce the phenomenon of frost caused by the wet cold air in the refrigerating chamber implanted in the evaporator. In addition, it is possible to prevent the inflow of the food smell of the refrigerator compartment into the freezer compartment.

Claims

A refrigerator having a compressor and a cabinet forming a freezer compartment and a refrigerating compartment,

A freezing compartment duct and a refrigerating compartment duct respectively provided in the rear wall surface of the freezing compartment and the refrigerating compartment;

An evaporator disposed over said freezer compartment duct and said refrigerating compartment duct;

A freezing chamber blower fan and a refrigerating compartment blower fan for respectively cooling the cold air generated from the evaporator to the freezing compartment and the refrigerating compartment;

A partition wall provided between the freezing compartment and the refrigerating compartment to partition the freezing compartment and the refrigerating compartment;

A return duct provided on the freezing compartment side and the freezing compartment side of the partition wall and communicating with the freezing compartment duct and the refrigerating compartment duct, respectively;

And a freezer outlet for each of the freezing compartment and the refrigerating compartment.

The method of claim 1,

And each inlet of each return duct is disposed at each door opening side of the freezing compartment and the refrigerating compartment.

A freezer compartment duct and a refrigerator compartment duct respectively installed in the rear wall of the freezer compartment and the refrigerating compartment;

A return duct provided on the freezing compartment side and the refrigerating compartment side of the partition wall and communicating with the freezing compartment duct and the refrigerating compartment duct, respectively;

A freezing compartment temperature sensor and a refrigerating compartment temperature sensor detecting an indoor temperature of the freezing compartment and the refrigerating compartment;

A freezing compartment blowing fan and a refrigerating compartment blowing fan for blowing cold air formed in the evaporator to the freezing compartment and the refrigerating compartment;

And a control unit for driving the freezer compartment blower fan and the refrigerating compartment blower fan by comparing the detection room temperature of the freezer compartment temperature sensor and the refrigerating compartment temperature sensor with values of the freezer compartment temperature controller and the refrigerator compartment temperature controller.

The method of claim 3,

The inlet of each return duct is disposed in each door opening side of the freezer compartment and the refrigerating compartment.