KR100631461B1 - Damper for refrigerator - Google Patents

Damper for refrigerator Download PDF

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Publication number
KR100631461B1
KR100631461B1 KR1020050083412A KR20050083412A KR100631461B1 KR 100631461 B1 KR100631461 B1 KR 100631461B1 KR 1020050083412 A KR1020050083412 A KR 1020050083412A KR 20050083412 A KR20050083412 A KR 20050083412A KR 100631461 B1 KR100631461 B1 KR 100631461B1
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KR
South Korea
Prior art keywords
damper
cold air
baffle
air duct
refrigerator
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Application number
KR1020050083412A
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Korean (ko)
Inventor
김치영
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엘지전자 주식회사
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Priority to KR1020050083412A priority Critical patent/KR100631461B1/en
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Publication of KR100631461B1 publication Critical patent/KR100631461B1/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
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • 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
    • F25D17/062—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 in household refrigerators
    • 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
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0666—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the freezer

Abstract

A damper for a refrigerator is provided to prevent the damper from being frozen by flowing cool air from a freezer compartment into a refrigerator compartment through a vent hole of a baffle, and to reduce the manufacturing cost by simplifying structure. A damper(40) for a refrigerator includes a damper body(41) installed in a cool air duct in which cool air flows from a freezer compartment into a refrigerator compartment, a baffle(43) installed at an end of the damper body and turned to selectively open and close the cool air duct, at least a vent hole(44) formed in the baffle to flow cool air for restricting the baffle from icing in shutting the cool air duct, and a stepping motor(45) applying driving force for turning the baffle. The vent hole is formed to flow cool air regardless of temperature change of the refrigerator compartment considering capacity of the refrigerator compartment and the freezer compartment and the flow sectional area of the cool air duct.

Description

냉장고용 댐퍼{Damper for refrigerator}Damper for refrigerator

도 1은 종래 기술에 의한 냉장고용 댐퍼가 냉기덕트에 설치된 상태를 보인 사시도.1 is a perspective view illustrating a refrigerator damper according to the related art installed in a cold air duct;

도 2는 도 1의 댐퍼를 보인 평면도.2 is a plan view showing the damper of FIG.

도 3은 본 발명에 의한 냉장고용 댐퍼의 바람직한 실시예를 보인 평면도.3 is a plan view showing a preferred embodiment of the damper for a refrigerator according to the present invention.

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

40: 댐퍼 41: 댐퍼본체40: damper 41: damper body

43: 배플 44: 통기공43: baffle 44: ventilator

45: 스텝핑모터45: stepping motor

본 발명은 냉장고에 관한 것으로, 보다 상세하게는 냉장고에 구비되는 냉기덕트를 선택적으로 개폐하는 냉장고용 댐퍼에 관한 것이다.The present invention relates to a refrigerator, and more particularly to a refrigerator damper for selectively opening and closing the cold air duct provided in the refrigerator.

도 1에는 종래 기술에 의한 냉장고용 댐퍼가 냉기덕트에 설치된 상태가 도시되어 있고, 도 2에는 도 1의 댐퍼가 도시되어 있다.1 illustrates a state in which a refrigerator damper according to the prior art is installed in a cold air duct, and FIG. 2 illustrates the damper of FIG. 1.

이에 도시된 바와 같이, 냉장고의 냉동실과 냉장실 사이에 냉기가 유동하는 통로인 냉기덕트(10) 상에 댐퍼(20)가 설치된다. 상기 댐퍼(20)는 냉장고 고내의 온도에 따라서 상기 냉기덕트(10)를 개폐하여 상기 냉동실과 냉장실 사이의 냉기유동을 조절하는 역할을 한다.As shown in the figure, a damper 20 is installed on the cold air duct 10 which is a passage through which cold air flows between the freezer compartment and the refrigerating compartment of the refrigerator. The damper 20 controls the cold air flow between the freezer compartment and the refrigerating compartment by opening and closing the cold air duct 10 according to the temperature of the refrigerator compartment.

그리고 도 2에 도시된 바와 같이, 상기 댐퍼(20)의 프레임을 형성하는 댐퍼본체(21)는 전체적으로 장방형으로 형성되고, 그 내부에 배플(23)이 회동가능하게 설치된다. 상기 배플(23)은 상기 댐퍼본체(21)의 형상에 대응하는 장방형으로 형성될 수 있고, 그 일단부를 중심으로 회동하여 상기 냉기덕트(10)를 선택적으로 개폐한다.As shown in FIG. 2, the damper body 21 forming the frame of the damper 20 is formed in a rectangular shape as a whole, and a baffle 23 is rotatably installed therein. The baffle 23 may be formed in a rectangular shape corresponding to the shape of the damper body 21, and rotates about one end thereof to selectively open and close the cold air duct 10.

한편 상기 배플(23)의 일면에는 히터(27)가 장착된다. 상기 히터(27)는 상기 냉동실과 냉장실 사이의 온도차에 의하여 상기 냉장실 내부의 냉기 중의 수분이 상기 배플(23)의 일면에 응결됨으로써 결빙되는 것을 방지하기 위한 것이다. 그리고 상기 히터(27)에는 전원을 공급하고 전기적 신호를 전달하기 위한 히터와이어(29)가 연결된다.Meanwhile, a heater 27 is mounted on one surface of the baffle 23. The heater 27 prevents freezing of moisture in the cold air inside the refrigerating compartment by condensation on one surface of the baffle 23 due to a temperature difference between the freezing compartment and the refrigerating compartment. The heater 27 is connected to a heater wire 29 for supplying electric power and for transmitting an electrical signal.

또한 상기 배플(23)에 인접하는 상기 댐퍼본체(21)의 일측에는, 상기 배플(23)을 회동시키기 위한 스텝핑모터(25)가 장착된다. 상기 스텝핑모터(25)는 냉장고 내부의 온도를 측정하는 온도센서(미도시)에서 검출된 온도에 따라서 제어부(미도시)에 의하여 구동됨으로써, 상기 배플(23)을 회동시키게 된다. In addition, a stepping motor 25 for rotating the baffle 23 is mounted on one side of the damper body 21 adjacent to the baffle 23. The stepping motor 25 is driven by a controller (not shown) according to a temperature detected by a temperature sensor (not shown) for measuring the temperature inside the refrigerator, thereby rotating the baffle 23.

그러나 이와 같은 종래 기술에 의한 냉장고용 댐퍼에는 다음과 같은 문제점이 있다.However, the refrigerator damper according to the related art has the following problems.

상술한 바와 같이, 상기 배플(23)에 결빙이 발생하는 것을 방지하기 위하여 상기 히터(27)가 구비된다. 그러므로 이와 같이 상기 히터(27)가 구비됨으로써 제품의 제조코스트가 상승할 뿐만 아니라, 상기 히터(27)의 구동을 위하여 전력이 추가적으로 소모되는 문제점이 발생한다.As described above, the heater 27 is provided to prevent freezing from occurring in the baffle 23. Therefore, the heater 27 is provided in this way, not only the manufacturing cost of the product rises, but also a problem in that additional power is consumed for driving the heater 27.

본 발명은 이와 같은 종래의 문제점을 해결하기 위한 것으로, 본 발명의 목적은 보다 간단하게 결빙을 방지할 수 있도록 구성되는 냉장고용 댐퍼를 제공하는 것이다.The present invention is to solve such a conventional problem, it is an object of the present invention to provide a damper for a refrigerator configured to more easily prevent freezing.

이와 같은 목적을 달성하기 위한 본 발명의 특징에 의하면, 본 발명은 냉동실의 냉기가 냉장실로 유동되는 냉기덕트 상에 설치되는 댐퍼본체와, 상기 댐퍼본체의 일측에 그 일단을 중심으로 타단이 회동가능하게 설치되어 상기 냉기덕트를 선택적으로 개폐하는 배플, 상기 배플에 형성되어 상기 냉기덕트가 차폐된 상태에서 배플의 결빙을 방지하기 위한 냉기가 유동되는 적어도 하나의 통기공, 그리고 상기 배플의 회동을 위한 구동력을 제공하는 스텝핑모터를 포함하여 구성된다.According to a feature of the present invention for achieving the above object, the present invention is the damper main body is installed on the cold air duct in which the cold air of the freezing chamber flows to the refrigerating chamber, and the other end can be rotated about one end of the damper body about one end. Installed in the baffle to selectively open and close the cold air duct, formed in the baffle, at least one vent hole through which cold air flows to prevent freezing of the baffle while the cold air duct is shielded, and for rotating the baffle. It is configured to include a stepping motor for providing a driving force.

상기 통기공은 상기 냉동실과 냉장실의 용량 및 상기 냉기덕트의 유동단면적을 고려하여 상기 냉장실의 온도변화와 무관한 양의 냉기가 유동되도록 하는 크기로 형성됨을 특징으로 한다.The vent is characterized in that it is formed in a size to allow the amount of cold air flows irrespective of the temperature change of the refrigerating chamber in consideration of the capacity of the freezer compartment and the refrigerating compartment and the flow cross-sectional area of the cold duct.

이와 같은 본 발명에 의하면, 간단한 구성으로 댐퍼에 결빙이 발생하는 현상을 방지할 수 있게 되는 이점이 있다.According to the present invention as described above, there is an advantage that it is possible to prevent the phenomenon of freezing in the damper with a simple configuration.

이하에서는 본 발명에 의한 냉장고용 댐퍼의 바람직한 실시예를 첨부된 도면 을 참조하여 보다 상세하게 설명한다.Hereinafter, a preferred embodiment of a damper for a refrigerator according to the present invention will be described in more detail with reference to the accompanying drawings.

도 3에는 본 발명에 의한 냉장고용 댐퍼의 바람직한 실시예가 도시되어 있다. 종래와 동일한 구성에 대해서는 도 1의 도면부호를 원용한다.3 shows a preferred embodiment of a damper for a refrigerator according to the present invention. The same reference numerals as in Fig. 1 are used for the same configurations as the prior art.

이에 도시된 바와 같이, 냉장고의 냉동실과 냉장실 사이에 냉기가 유동되는 통로역할을 하는 냉기덕트의 내부 또는 그 일측 단부에 설치되는 댐퍼(40)는, 그 프레임을 형성하는 댐퍼본체(41)와, 상기 댐퍼본체(41)의 내부에 회동가능하게 설치되는 배플(43), 그리고 상기 배플(43)을 회동시키기 위한 스텝핑모터(45)를 포함하여 구성된다. As shown in the drawing, a damper body 41 installed at an inner side or one end of a cold air duct that serves as a passage through which cold air flows between a freezer compartment and a refrigerating compartment of the refrigerator includes: a damper body 41 forming a frame thereof; The damper main body 41 is configured to include a baffle 43 rotatably installed, and a stepping motor 45 for rotating the baffle 43.

상기 댐퍼본체(41)는 전체적으로 장방형으로 형성되고, 상기 냉기덕트(10)의 내부 또는 일측 단부에 설치된다. 그리고 상기 댐퍼본체(41)의 내부에 설치되는 배플(43)이 그 일측단부를 중심으로 회동하여 상기 냉기덕트(10)를 개폐시킴으로써, 상기 냉동실에서 상기 냉장실로 유동되는 냉기가 조절된다.The damper body 41 is formed in a rectangular shape as a whole, and is installed at an inner side or one end of the cold air duct 10. In addition, the baffle 43 installed in the damper body 41 rotates about one side end thereof to open and close the cold air duct 10, thereby controlling cold air flowing from the freezer compartment to the cold compartment.

상기 배플(43)은 상기 댐퍼본체(41)의 형상에 대응하는 형상으로 형성되고, 상기 배플(43)에는 다수개의 통기공(44)이 형성된다. 상기 통기공(44)은 상기 배플(43)이 회동하여 상기 냉기덕트(10)를 차폐한 상태에서 소량의 상기 냉동실 냉기가 상기 냉장실로 유동되는 통로역할을 한다.The baffle 43 is formed in a shape corresponding to the shape of the damper body 41, and a plurality of vent holes 44 are formed in the baffle 43. The vent 44 serves as a passage through which a small amount of the freezer compartment cold air flows into the refrigerating compartment in a state in which the baffle 43 rotates to shield the cold air duct 10.

이때 상기 통기공(44)은 상기 냉기덕트(10) 내부의 온도를 저하시키는 동시에 상기 냉장실 내부의 냉기가 상기 댐퍼(40)를 향하여 유동하는 것을 방지함으로써, 상기 냉동실과 냉장실 사이의 온도차에 의하여 상기 냉장실 내부의 냉기 중에 포함된 수분이 응결되어 냉장실에 인접하는 상기 댐퍼(40)의 일면이 결빙되는 것을 방지하기 위한 것이다. 따라서 상기 통기공(44)의 단면적은 상기 냉기덕트(10)가 개방된 상태에서 상기 냉동실에서 상기 냉장실로 유동하는 냉기에 비하여 현저히 적은 양의 냉기가 유동되는 값으로 결정된다. 즉 상기 통기공(44)의 크기는 냉장고의 용량이나 상기 냉기덕트(10)의 유동단면적 등에 따라서 결정되는 것이다.At this time, the ventilation hole 44 lowers the temperature inside the cold air duct 10 and prevents cold air from flowing inside the damper 40 by the temperature difference between the freezer compartment and the refrigerating compartment. Moisture contained in the cold air inside the refrigerating compartment is to prevent the freezing of one surface of the damper 40 adjacent to the refrigerating compartment. Therefore, the cross-sectional area of the vent hole 44 is determined as a value at which a significantly smaller amount of cold air flows compared to the cold air flowing from the freezing chamber to the refrigerating chamber in the state in which the cold air duct 10 is opened. That is, the size of the vent 44 is determined according to the capacity of the refrigerator or the flow cross-sectional area of the cold air duct 10.

한편 상기 스텝핑모터(45)는 상기 댐퍼본체(41)의 일측에 설치되어 상기 배플(43)을 회동시키기 위한 구동력을 제공하게 된다. 상기 스텝핑모터(45)는 냉장고 내부의 온도를 측정하는 온도센서(미도시)에 의하여 검출된 온도에 따라서 제어부(미도시)에 의하여 구동된다. Meanwhile, the stepping motor 45 is installed at one side of the damper body 41 to provide a driving force for rotating the baffle 43. The stepping motor 45 is driven by a controller (not shown) according to a temperature detected by a temperature sensor (not shown) for measuring the temperature inside the refrigerator.

다음으로 이와 같은 본 발명에 의한 냉장고용 댐퍼의 바람직한 실시예의 작용을 설명한다.Next, the operation of the preferred embodiment of the damper for a refrigerator according to the present invention will be described.

먼저 냉장실의 온도가 설정된 온도보다 높은 경우에는, 냉동실의 냉기를 상기 냉장실로 유동시키기 위하여 냉기덕트(10)를 개방한다. 이를 위하여 상기 냉기덕트(10)를 차폐한 상태의 배플(43)이 스텝핑모터(45)에 의하여 회동하여 상기 냉기덕트(10)를 개방시킨다. First, when the temperature of the refrigerating compartment is higher than the set temperature, the cold air duct 10 is opened to flow the cold air of the freezing compartment into the refrigerating compartment. To this end, the baffle 43 in which the cold air duct 10 is shielded is rotated by the stepping motor 45 to open the cold air duct 10.

이와 같이 상기 냉기덕트(10)가 개방되면, 상기 냉동실의 냉기가 상기 냉장실로 유동되어 상기 냉장실의 온도가 낮아진다. 따라서 상기 냉장실이 설정된 온도를 유지할 수 있게 됨으로써, 상기 냉장실 내부의 식품을 보다 신선하게 보관할 수 있게 된다.As such, when the cold air duct 10 is opened, cold air of the freezing compartment flows into the refrigerating compartment, thereby lowering the temperature of the refrigerating compartment. Therefore, since the refrigerator compartment can maintain a set temperature, the food inside the refrigerator compartment can be stored more freshly.

그리고 상기 냉장실의 온도가 설정된 온도보다 낮은 경우에는, 상기 냉동실의 냉기가 상기 냉장실로 유동되는 것을 방지하기 위하여 상기 냉기덕트(10)를 차 단한다. 즉 상기 배플(43)이 상기 스텝핑모터(45)에 의하여 회동하여 상기 냉기덕트(10)를 차폐한다.When the temperature of the refrigerating compartment is lower than the set temperature, the cold air duct 10 is blocked to prevent the cold air of the freezing compartment from flowing into the refrigerating compartment. That is, the baffle 43 is rotated by the stepping motor 45 to shield the cold air duct 10.

이와 같이 상기 냉기덕트(10)가 차폐되면, 상기 냉동실의 냉기가 상기 냉장실로 더 이상 공급되지 않게 됨으로써, 냉장실의 온도가 더 이상 낮아지지 않게 된다. 따라서 상기 냉장실 내부의 식품이 냉동되거나 결빙되는 현상을 방지할 수 있게 된다.When the cold air duct 10 is shielded as described above, the cold air of the freezing compartment is no longer supplied to the refrigerating compartment, so that the temperature of the refrigerating compartment is no longer lowered. Therefore, it is possible to prevent the phenomenon in which the food inside the refrigerator compartment is frozen or frozen.

한편 상기 배플(43)에 의하여 상기 냉기덕트(10)가 차폐되더라도, 상기 냉기덕트(10)의 통기공(44)을 통하여 상기 냉동실의 냉기가 상기 냉장실로 유동된다. 이와 같이 상기 통기공(44)을 통하여 상기 냉장실로 공급되는 냉기는 상기 냉기덕트(10)가 개방된 상태에서 상기 냉장실로 공급되는 냉기에 비하여 현저히 소량으로, 상기 냉장실의 온도변화와는 무관하게 냉장실에 인접하는 상기 댐퍼(40)의 일면, 특히 상기 배플(43)이 결빙되는 것을 방지하는 역할을 한다.On the other hand, even if the cold air duct 10 is shielded by the baffle 43, the cold air of the freezer compartment flows to the refrigerating compartment through the vent hole 44 of the cold air duct 10. As such, the cool air supplied to the refrigerating compartment through the vent hole 44 is significantly smaller than the cold air supplied to the refrigerating compartment when the cold air duct 10 is opened, regardless of the temperature change of the refrigerating compartment. One surface of the damper 40 adjacent to the, in particular, the baffle 43 serves to prevent freezing.

즉 상기 통기공(44)을 통하여 유동하는 냉기에 의하여 상기 냉기덕트(10) 내부의 온도를 저하시키는 동시에 상기 냉장실의 냉기가 상기 댐퍼(40)를 향하여 유동하는 것이 방지된다. 따라서 상기 냉동실과 냉장실의 온도차에 의하여 상대적으로 높은 습도의 상기 냉장실 내부의 냉기 중에 포함된 수분이 응결되어 상기 댐퍼(40)의 일면이 결빙되는 현상이 방지된다.That is, the temperature of the inside of the cold air duct 10 is lowered by the cold air flowing through the air vent 44, and the cold air in the refrigerating compartment is prevented from flowing toward the damper 40. Therefore, the moisture contained in the cold air inside the refrigerating chamber of relatively high humidity due to the temperature difference between the freezer compartment and the refrigerating chamber is condensed to prevent the phenomenon that one surface of the damper 40 freezes.

이와 같은 본 발명의 기본적인 기술적 사상의 범주 내에서, 당업계의 통상의 지식을 가진 자에게 있어서는 다른 많은 변형이 가능함은 물론이고, 본 발명의 권리범위는 첨부한 특허청구범위에 기초하여 해석되어야 할 것이다. Within the scope of the basic technical idea of the present invention, many modifications are possible to those skilled in the art, and the scope of the present invention should be interpreted based on the appended claims. will be.

이와 같이 구성되는 본 발명에 의한 냉장고용 댐퍼에 의하면 다음과 같은 효과가 기대된다.According to the damper for a refrigerator by this invention comprised in this way, the following effects are anticipated.

댐퍼를 구성하는 배플에 다수개의 통기공을 형성함으로써 상기 댐퍼에 의하여 냉기덕트가 차폐되더라도, 상기 통기공을 통하여 냉동실의 냉기가 냉장실로 유동됨으로써, 상기 냉동실과 냉장실 사이의 온도차에 의하여 상대적으로 습도가 높은 상기 냉장실 내부의 냉기 중에 포함된 수분에 의하여 상기 댐퍼가 결빙되는 것이 방지된다. 따라서 보다 간단한 구성 및 저렴한 비용으로 상기 댐퍼가 결빙되는 것을 방지할 수 있게 된다.Although the cold air duct is shielded by the damper by forming a plurality of vent holes in the baffle constituting the damper, the cold air in the freezer compartment flows to the cold compartment through the vent hole, so that the humidity is relatively low due to the temperature difference between the freezer compartment and the cold compartment. The damper is prevented from freezing by moisture contained in the cold air inside the refrigerating chamber. Therefore, it is possible to prevent the damper from freezing with a simpler configuration and lower cost.

Claims (2)

냉동실의 냉기가 냉장실로 유동되는 냉기덕트 상에 설치되는 댐퍼본체와, A damper main body installed on a cold air duct in which cold air of the freezer compartment flows into the cold compartment; 상기 댐퍼본체의 일측에 그 일단을 중심으로 타단이 회동가능하게 설치되어 상기 냉기덕트를 선택적으로 개폐하는 배플, A baffle, the other end of which is rotatably installed at one side of the damper body to selectively open and close the cold air duct, 상기 배플에 형성되어 상기 냉기덕트가 차폐된 상태에서 배플의 결빙을 방지하기 위한 냉기가 유동되는 적어도 하나의 통기공, 그리고 At least one vent hole formed in the baffle and in which cold air flows to prevent freezing of the baffle while the cold air duct is shielded; and 상기 배플의 회동을 위한 구동력을 제공하는 스텝핑모터를 포함하여 구성되는 냉장고용 댐퍼.Refrigerator damper comprising a stepping motor for providing a driving force for the rotation of the baffle. 제 1 항에 있어서, The method of claim 1, 상기 통기공은 상기 냉동실과 냉장실의 용량 및 상기 냉기덕트의 유동단면적을 고려하여 상기 냉장실의 온도변화와 무관한 양의 냉기가 유동되도록 하는 크기로 형성됨을 특징으로 하는 냉장고용 댐퍼.The ventilator is a damper for a refrigerator, characterized in that the size of the freezing chamber and the refrigerating chamber and the cooling air duct in consideration of the flow cross-sectional area is formed so that the amount of cold air flow irrelevant to the temperature change of the refrigerating chamber.
KR1020050083412A 2005-09-07 2005-09-07 Damper for refrigerator KR100631461B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107178948A (en) * 2017-06-14 2017-09-19 合肥华凌股份有限公司 Refrigerator and its ducting assembly
CN109579410A (en) * 2018-11-07 2019-04-05 海信容声(广东)冰箱有限公司 A kind of air channel structure and wind cooling refrigerator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107178948A (en) * 2017-06-14 2017-09-19 合肥华凌股份有限公司 Refrigerator and its ducting assembly
CN107178948B (en) * 2017-06-14 2020-06-02 合肥华凌股份有限公司 Freezer and air duct assembly thereof
CN109579410A (en) * 2018-11-07 2019-04-05 海信容声(广东)冰箱有限公司 A kind of air channel structure and wind cooling refrigerator

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