KR970002339B1 - Single fan types refrigerators for defrosting method of double effect - Google Patents

Single fan types refrigerators for defrosting method of double effect Download PDF

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Publication number
KR970002339B1
KR970002339B1 KR1019940000244A KR19940000244A KR970002339B1 KR 970002339 B1 KR970002339 B1 KR 970002339B1 KR 1019940000244 A KR1019940000244 A KR 1019940000244A KR 19940000244 A KR19940000244 A KR 19940000244A KR 970002339 B1 KR970002339 B1 KR 970002339B1
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South Korea
Prior art keywords
freezer
compartment
defrosting
evaporator
fan
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KR1019940000244A
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Korean (ko)
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KR950023946A (en
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이재헌
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이재헌
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Publication of KR970002339B1 publication Critical patent/KR970002339B1/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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/004—Control mechanisms
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/141—Removal by evaporation

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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)
  • Defrosting Systems (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

This device uses not only an electronic heater for defrosting but also a double defrosting principle which can defrost under 0deg. C by circulating over 0deg. C air and can shortly drop the temperature of the cool chamber. Between a freezer and evaporator, it is provided with a freezer damper between a freezer and a cooling chamber, it is provided with a escape breaking damper(2).

Description

이중효용 제상방법을 채용한 단일팬형 냉동냉장고Single fan freezer with dual effect defrost method

본 발명은 제상운전에 소요되는 전력량이 감소되는 제상방법을 채용하는 단일팬형 냉동냉장고에 관한 것으로, 구체적으로 제상운전시 증발기에 착상된 서리를 녹이기 위하여 제상용 전기히터로부터의 발열만 이용하는 것이 아니라 냉장실내의 0℃ 이상인 공기를 증발기에 순환시킴으로서 착상된 0℃ 이하의 서리도 녹이면서 동시에 냉장실 공기온도도 강하시킬 수 있는 이중효용 제상원리를 이용한 것이다.The present invention relates to a single fan freezer refrigerator employing a defrosting method that reduces the amount of power required for defrosting operation, and specifically refrigerating not only heat generated from an electric heater for defrosting to melt frost formed on an evaporator during defrosting operation. By circulating air above 0 ° C in the evaporator, the dual effect defrosting principle can be used to melt the frost below 0 ° C and lower the temperature of the refrigerator compartment.

일반적으로 냉동냉장고는 냉장이나 냉동을 필요로 하는 식품이나 음료수 등을 냉장 또는 냉동상태로 보관하는 데 사용하는 것으로 냉기를 효율적으로 발생 유지하여 고내의 저장물을 신선한 상태로 유지 보존하는 것이 요구된다.In general, the refrigerator is used to store food or beverages that require refrigeration or freezing in a refrigerated or frozen state, and thus, it is required to efficiently generate and maintain cold air to keep the stored matter in the fresh state.

냉장냉동고에 냉동운전이 수행될 때 냉동실의 온도는 -20℃ 전후로 냉장실의 온도는 3℃ 정도로 유지된다. 이러한 냉동운전시 증발기에 착상되는 서리의 온도는 -20℃ 이하로 유지되는 냉매증발튜브의 온도에 근접된다. 일정시간 냉동운전후 제상운정으로 전환되었을 때, 기존 단일팬형 냉동냉장고의 경우에는 냉기순환용 팬이 정지되어 냉동실이나 냉장실의 공기순환이 멈추게 되고 전기히터에서 공급되는 열량에 의해서만 착상된 서리가 융해되도록 되어 있다.When the freezer operation is performed in the refrigerator freezer, the temperature of the freezer compartment is maintained at about -20 ° C and the temperature of the refrigerator compartment is about 3 ° C. In this freezing operation, the temperature of the frost formed on the evaporator is close to the temperature of the refrigerant evaporation tube maintained at -20 ° C or lower. When it is converted to defrosting operation after freezing operation for a certain time, in the existing single fan type freezer, the cooling fan is stopped and the air circulation in the freezer or refrigerating chamber is stopped, and the frost formed by only the amount of heat supplied from the electric heater melts. It is supposed to be.

이와 같은 기존 단일팬형 냉동냉장고에 있어서의 제상방법에 있어서는, 제상을 수행하기 위하여 팬의 작동을 정지하기 위한 부품수의 증가와 제상시간동안 냉장실 온도의 증가를 가져와 냉각효율이 저하되는 문제점이 있었다.In the defrosting method of the existing single-fan refrigerator refrigerator, there is a problem that the cooling efficiency is lowered by increasing the number of parts for stopping the operation of the fan to perform the defrosting and the increase in the temperature of the refrigerator compartment during the defrosting time.

본 발명은 상기와 같은 종래의 단일팬형 냉동냉장고의 문제점을 해결하기 위한 것으로 증발기에 착상된 서리를 녹이기 위하여 제상용 전기히터로부터의 발열만 이용하는 것이 아니라 냉장실내의 증발기에 순환시킴으로서 서리를 녹이는 동시에 냉장실 공기온도도 강하시킬 수 있는 이중효용 제상방법을 채용한 단일팬형 냉동냉장고를 제공하는 것에 그 목적이 있다.The present invention is to solve the problems of the conventional single-pan freezer refrigerator as described above, in order to melt the frost formed on the evaporator, the frost is melted at the same time by circulating the evaporator in the fridge instead of using the heat generated from the electric heater for defrosting. It is an object of the present invention to provide a single fan freezer that employs a dual effect defrosting method that can lower the air temperature.

상기와 같은 목적을 달성하기 위하여 본 발명은 단일팬형 냉동냉장고에 있어서, 냉동실(1)과 증발기(15) 사이에 냉동실 댐퍼(11)를 설치하고, 냉동실(1)과 냉장실(2) 사이에는 유출차단 댐퍼(12)를 설치하여, 제상운전시에는 상기 냉동실 및 유출차단 댐퍼(11,12)가 차단되어 냉동실(1)로의 냉기순환을 방지하고, 냉기순환용 팬(13)의 작용으로 유로(16)를 통하여 냉장실(2)내의 공기를 증발기(15)에 순환시킴으로서 서리를 녹이는 동시에 냉장실(2)의 공기온도로 강하시킬 수 있도록 하는 것을 특징으로 하는 것이다.In order to achieve the above object, the present invention provides a freezer compartment damper (11) between the freezer compartment (1) and the evaporator (15) in a single fan freezer refrigerator, and flows out between the freezer compartment (1) and the refrigerator compartment (2). The blocking damper 12 is installed, and the freezing compartment and the outflow blocking dampers 11 and 12 are blocked at the time of defrosting operation to prevent cold air circulation to the freezing compartment 1, and by the action of the cold air circulation fan 13, 16) by circulating the air in the refrigerating compartment (2) to the evaporator 15, it is characterized in that it can be lowered to the air temperature of the refrigerating compartment (2) while melting frost.

제1도는 본 발명에서 제안된 냉동냉장고의 제상운전시 공기순환경로 및 부가되는 냉동실 댐퍼.1 is a freezer compartment damper which is added to the air circulation environment during the defrosting operation of the refrigerator refrigerator proposed in the present invention.

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

1 : 냉동실 2 : 냉장실1: freezer 2: cold storage room

11 : 냉동실 댐퍼 12 : 유출차단 댐퍼11: freezer damper 12: spill blocking damper

13 : 팬 14 : 모터13: fan 14: motor

15 : 증발기 16 : 유로15: evaporator 16: euro

21 : 압축기21: compressor

이하 본 발명을 첨부도면을 참조하여 설명하면 다음과 같다. 제1도는 본 발명에서 제안된 냉동냉장고의 제상운전시 공기순환경로 및 부가되는 냉동실 댐퍼를 도시한 것이다.Hereinafter, the present invention will be described with reference to the accompanying drawings. 1 is a view showing an air circulation path and a freezer compartment damper added during defrosting of a refrigerator refrigerator proposed in the present invention.

도시한 바와 같이 본 발명의 단일팬형 냉동냉장고는 냉동실(1)과 냉장실(2)로 상하 구분되어지며, 냉동실(1)의 온도 강하를 위한 증발기(15), 공기를 순환하는 냉기순환용 팬(13), 냉기순환용 팬(13)을 구동하는 모터(14), 제상운전시 냉동실(1)로의 공기 유입을 차단하기 위한 증발기(15)와 냉동실(1) 사이에 설치되는 냉동실 댐퍼(11), 냉장실(2)과 냉동실(1) 사이에 설치되는 유출차단 댐퍼(12), 냉장실(2) 하단 일측에 설치되는 압축기(21) 및 냉장실(2)로의 공기 유입 및 유출이 가능하도록 하기 위한 유로(16)로 구성되어진다.As shown, the single fan freezer of the present invention is divided into a freezer compartment (1) and the refrigerator compartment (2) up and down, the evaporator (15) for the temperature drop of the freezer compartment (1), a cold air circulation fan ( 13), a motor 14 driving the cold air circulation fan 13, a freezer compartment damper 11 installed between the evaporator 15 and the freezer compartment 1 to block the inflow of air into the freezer compartment 1 during defrosting operation. , A flow path for allowing air to flow into and out of the outlet blocking damper 12 installed between the refrigerating compartment 2 and the freezing compartment 1, the compressor 21 and the refrigerating compartment 2 installed at one side of the lower end of the refrigerating compartment 2. It consists of (16).

이하 본 발명의 이중효용 제상방법을 채용한 단일팬형 냉동냉장고의 작용을 설명하면 다음과 같다.Hereinafter, the operation of the single-fan freezer refrigerator employing the dual-effect defrosting method of the present invention will be described.

증발기(15)에 설치된 서리제거센서(도시 없음)의 감지온도가 서리의 융점 이상이면 제상용 전기히터(도시 없음)를 구동하며, 상기 제상용 전기히터의 구동신호를 입력받아 센서(도시 없음)의 작동으로 냉동실 및 유출차단 댐퍼(11,12)가 냉동실(1)로의 공기 유입 및 유출을 차단하며, 상기 서리제거센서에 의하여 감지된 증발기(15)의 표면온도가 0℃에 도달하면 센서의 작동으로 제상용 전기히터의 구동을 중지함과 동시에 제상용 전기히터의 중지 신호를 입력받아 냉동실 및 유출차단 댐퍼(11,12)를 열어주도록 하며, 냉기순환용 팬(13)은 제상운전시에도 서리가 녹기 시작할 때까지 가동되어지는 것이다.If the detection temperature of the defrost sensor (not shown) installed in the evaporator 15 is above the melting point of frost, the defrosting electric heater (not shown) is driven, and the sensor (not shown) receives the drive signal of the defrosting electric heater. The freezer compartment and the outlet blocking dampers 11 and 12 block air inflow and outflow into the freezer compartment 1 when the surface temperature of the evaporator 15 detected by the defrost sensor reaches 0 ° C. Operation stops the operation of the electric heater for defrost and at the same time receives the stop signal of the electric heater for defrosting to open the freezer compartment and outflow dampers (11, 12), the cold air circulation fan (13) even during defrost operation It runs until frost starts to melt.

부가적으로 팬(13)작동 제어회로는 제상운전중에서도 팬(13)이 가동될 수 있도록 개조된다.In addition, the fan 13 operation control circuit is adapted so that the fan 13 can be operated even during the defrosting operation.

그러므로 본 발명에서 제안된 단일팬형 냉동냉장고에서는 제상운전중에서도 증발기 표면온도가 0℃에 도달될 때까지는 도1에 도시한 바와 같이 냉장실에서는 냉기가 순환된다.Therefore, in the single fan freezer refrigerator proposed in the present invention, cold air is circulated in the refrigerator compartment as shown in FIG. 1 until the evaporator surface temperature reaches 0 ° C. even during the defrosting operation.

상술한 바와 같이 이중효용 제상방법을 채용한 본 발명의 단일팬형 냉동냉장고는 증발기에 착상된 서리를 녹이기 위하여 제상용 전기히터로부터의 발열만 이용하는 것이 아니라 냉장실내의 공기를 증발기에 순환시킴으로서 서리를 녹이는 동시에 냉장실 공기온도도 강하시킬 수 있는 복합적인 효과가 있는 것이다.As described above, the single fan freezer of the present invention employing the dual-effect defrosting method does not use only the heat generated from the electric heater for defrosting to dissolve the frost formed on the evaporator, but dissolves the frost by circulating air in the refrigerating chamber to the evaporator. At the same time, there is a complex effect that can also lower the refrigerator air temperature.

Claims (1)

단일팬형 냉동냉장고에 있어서, 냉동실(1)과 증발기(15) 사이에 냉동실 댐퍼(11)를 설치하고, 냉동실(1)과 냉장실(2) 사이에는 유출차단 댐퍼(12)를 설치하여, 제상운전시에는 상기 냉동실 및 유출차단 댐퍼(11,12)가 차단되어 냉동실(1)로의 냉기순환을 방지하고, 냉기순환용 팬(13)의 작용으로 유로(16)를 통하여 냉장실(2)내의 공기를 증발기(15)에 순환시킴으로서 서리를 녹이는 동시에 냉장실(2)의 공기온도도 강하시킬 수 있도록 하는 것을 특징으로 하는 이중효용 제상방법을 채용한 단일팬형 냉동냉장고.In the single fan freezer, a freezer compartment damper (11) is provided between the freezer compartment (1) and the evaporator (15), and an outflow blocking damper (12) is installed between the freezer compartment (1) and the refrigerator compartment (2) for defrosting operation. At this time, the freezer compartment and the leakage blocking dampers 11 and 12 are blocked to prevent cold air circulation to the freezer compartment 1, and the air in the refrigerating compartment 2 is transferred through the flow path 16 by the action of the cold air circulation fan 13. A single-fan freezer using a dual-effect defrosting method, characterized in that the frost is dissolved in the evaporator (15) so that the frost can be melted and the air temperature of the refrigerating chamber (2) can be lowered.
KR1019940000244A 1994-01-08 1994-01-08 Single fan types refrigerators for defrosting method of double effect KR970002339B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940000244A KR970002339B1 (en) 1994-01-08 1994-01-08 Single fan types refrigerators for defrosting method of double effect

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Application Number Priority Date Filing Date Title
KR1019940000244A KR970002339B1 (en) 1994-01-08 1994-01-08 Single fan types refrigerators for defrosting method of double effect

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KR950023946A KR950023946A (en) 1995-08-18
KR970002339B1 true KR970002339B1 (en) 1997-03-03

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