KR20190098509A - Refrigerator and Control method of the same - Google Patents

Refrigerator and Control method of the same Download PDF

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Publication number
KR20190098509A
KR20190098509A KR1020180018542A KR20180018542A KR20190098509A KR 20190098509 A KR20190098509 A KR 20190098509A KR 1020180018542 A KR1020180018542 A KR 1020180018542A KR 20180018542 A KR20180018542 A KR 20180018542A KR 20190098509 A KR20190098509 A KR 20190098509A
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South Korea
Prior art keywords
refrigerator
freezer
cycle
compartment
door
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KR1020180018542A
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Korean (ko)
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김영두
신성구
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엘지전자 주식회사
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Priority to KR1020180018542A priority Critical patent/KR20190098509A/en
Publication of KR20190098509A publication Critical patent/KR20190098509A/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
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25D2600/00—Control issues
    • F25D2600/02—Timing
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

A refrigerator by which an operating cycle of sequentially performing a refrigerator compartment operation, a freezer compartment operation, and a compressor stop operation is repeated, comprises: a door heater installed in a refrigerator compartment door for opening and closing a refrigerator compartment; a switching valve guiding a refrigerant to a refrigerator compartment evaporator for cooling the refrigerator compartment, or guiding the refrigerant to a freezer compartment evaporator for cooling a freezer compartment; and a control unit controlling the door heater, the switching valve, and a compressor. The control unit turns on/off the door heater in a variable cycle determined by the time when the freezer compartment operation of a previous operating cycle is performed, in the freezer compartment operation of each operating cycle, thereby minimizing dew formation in the refrigerator compartment door or a cabinet that occurs when the average temperature of the door heater is high during the freezer compartment operation performed after the refrigerator compartment operation and when the average temperature of the door heater is low during the freezer compartment operation.

Description

냉장고 및 그 운전방법{Refrigerator and Control method of the same}Refrigerator and its operation method {Refrigerator and Control method of the same}

본 발명은 냉장고 및 그 운전방법에 관한 것으로, 더욱 상세하게는 냉장실도어에 도어히터가 설치된 냉장고에 관한 것이다.The present invention relates to a refrigerator and a method of operating the same, and more particularly, to a refrigerator provided with a door heater in a refrigerating chamber door.

냉장고는 식품이나 약품, 화장품 등의 피냉각물(이하, 식품이라 칭함)을 차게 하거나 저온에서 보관하여 부패, 변질을 방지하는 장치이다.A refrigerator is a device that prevents decay and deterioration by cooling an object to be cooled (hereinafter referred to as a food) such as food, medicine, cosmetics, or at a low temperature.

냉장고는 식품이 저장되는 저장실과, 저장실을 냉각하는 냉각장치를 포함한다.The refrigerator includes a storage compartment in which food is stored and a cooling device for cooling the storage compartment.

냉각장치는 냉매가 순환되는 압축기, 응축기, 팽창기구, 증발기를 포함할 수 있다.The cooling device may include a compressor, a condenser, an expansion device, and an evaporator through which the refrigerant is circulated.

냉장고는 저장실의 공기를 증발기와 저장실로 순환시키는 송풍팬을 더 포함할 수 있고, 송풍팬은 증발기의 주변에 배치될 수 있고, 저장실의 공기가 증발기로 유동된 후 다시 저장실로 송풍되는 기류를 형성할 수 있다.The refrigerator may further include a blowing fan for circulating air in the storage compartment to the evaporator and the storage compartment, the blowing fan may be disposed around the evaporator, and form an air flow that is blown back to the storage compartment after the air in the storage compartment is flowed to the evaporator. can do.

냉장고의 일 예는 냉동실을 냉각하는 냉동실증발기와, 냉장실을 냉각하는 냉장실증발기를 모두 포함할 수 있고, 이 경우, 냉장고는 냉동실과 냉장실 각각을 독립 냉각할 수 있다.One example of the refrigerator may include both a freezer compartment evaporator for cooling the freezer compartment and a refrigerator compartment evaporator for cooling the refrigerator compartment, in which case the refrigerator may independently cool each of the freezer compartment and the refrigerator compartment.

냉장고의 다른 예는 냉장고의 도어에 히터가 설치되고, 압축기가 고속 RPM으로 운전되는 급속냉각모드 등의 경우이면, 히터의 부하를 최대 50% ~ 100% 범위 내에서 구동하고, 그렇지 않는 않으면 히터를 최대 50% 구동하는 노멀모드로 운전 시킬 수 있다.Another example of the refrigerator is a heater installed in the door of the refrigerator, and in the case of a rapid cooling mode in which the compressor is operated at a high RPM, the load of the heater is driven within a range of 50% to 100%, otherwise the heater is It can be operated in normal mode driving up to 50%.

대한민국 공개특허공보 10-2015-0086883 A(2015년07월29일 공개)Republic of Korea Patent Publication No. 10-2015-0086883 A (published Jul 29, 2015)

본 발명은 냉장실운전을 완료한 이후에 발생될 수 있는 냉장실도어의 이슬맺힘이나 그 주변의 이슬맺힘을 최소화할 수 있는 냉장고 및 그 운전방법을 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a refrigerator and a method of operating the refrigerator, which can minimize dew condensation of the refrigerating chamber door or dew condensation around the refrigerator compartment door, which may occur after completing the refrigerating chamber operation.

본 발명의 실시 예에 따른 냉장고는 냉장실운전과 냉동실운전과 압축기정지가 순차적으로 실시되는 운전사이클이 반복되는 냉장고일 수 있다. The refrigerator according to an embodiment of the present invention may be a refrigerator in which an operation cycle in which a refrigerator compartment operation, a freezer compartment operation, and a compressor stop are sequentially performed is repeated.

냉장고는 냉장실을 개폐하는 냉장실도어에 설치된 도어히터와; 냉매를 냉장실을 냉각하는 냉장실증발기로 안내하거나 냉매를 냉동실을 냉각하는 냉동실증발기로 안내하는 전환밸브와; 도어히터와, 전환밸브와 압축기를 제어하는 제어부를 포함할 수 있다.The refrigerator includes a door heater installed in the refrigerator compartment door for opening and closing the refrigerator compartment; A switching valve for guiding the refrigerant to a refrigerator compartment evaporator for cooling the refrigerator compartment or for guiding the refrigerant to a freezer compartment evaporator for cooling the freezer compartment; It may include a control unit for controlling the door heater, the switching valve and the compressor.

도어히터는 고정주기와 가변주기를 갖고 온,오프될 수 있고, 고정주기로 온,오프되다가 가변주기로 온,오프될 수 있고, 이후 다시 고정주기로 온,오프될 수 있다.The door heater may be turned on and off with a fixed period and a variable period, may be turned on and off with a fixed period, and then turned on and off with a variable period, and then turned on and off again with a fixed period.

제어부는 각 운전사이클의 냉동실운전시, 이전 운전사이클의 냉동실운전이 실시되었던 시간에 의해 결정된 가변주기로 도어히터를 온,오프시킬 수 있다.The control unit may turn the door heater on and off in a variable cycle determined by the time at which the freezer operation of the previous operation cycle was performed during the freezer operation of each operation cycle.

제어부는 냉장실운전이거나 압축기 정지시, 도어히터를 고정주기로 온,오프시키는 것을 반복할 수 있다.The controller may repeat turning on and off the door heater at a fixed cycle when the refrigerator is operating or when the compressor is stopped.

냉장고는 냉동실운전이 실시되는 시간이 카운트되는 카운터를 더 포함할 수 있고, 카운터에서 카운트된 시간이 가변주기에 사용될 수 있다.The refrigerator may further include a counter in which a time at which a freezer operation is performed is counted, and the time counted in the counter may be used in a variable cycle.

냉장고는 고정주기 및 가변주기가 저장되는 메모리를 더 포함할 수 있다. 제어부는 냉장실운전 및 압축기 정지시 메모리에 저장된 고정주기로 도어히터를 온,오프시키는 것을 반복할 수 있다. 제어부는 냉장실운전후 실시되는 냉동실운전시, 메모리에 저장된 가변주기로 도어히터를 온,오프시킬 수 있다.The refrigerator may further include a memory in which a fixed cycle and a variable cycle are stored. The controller may repeat turning on and off the door heater at a fixed cycle stored in the memory during the refrigerating chamber operation and the compressor stop. The control unit may turn the door heater on and off in a variable cycle stored in the memory during the freezer operation performed after the refrigerator compartment operation.

제어부는 냉장고로 전원이 투입된 후 실시되는 최초 운전사이클의 냉동실 운전시, 도어히터를 고정주기로 온,오프시킬 수 있다.The controller may turn the door heater on and off in a fixed cycle during the freezer operation of the first operation cycle that is performed after power is supplied to the refrigerator.

제어부는 최초 운전사이클 이후에 실시되는 운전사이클의 냉동실운전부터 도어히터를 가변주기로 온,오프시킬 수 있다.The controller may turn the door heater on and off in a variable cycle from the freezer operation of the operation cycle performed after the initial operation cycle.

본 발명의 실시 예에 따른 냉장고의 운전방법은 냉장실운전과 냉동실운전과 압축기정지가 순차적으로 실시되는 운전사이클이 반복되는 냉장고의 운전방법에 적용될 수 있다.The operation method of the refrigerator according to an embodiment of the present invention may be applied to a method of operating a refrigerator in which an operation cycle in which a refrigerator operation, a freezer operation and a compressor stop are sequentially performed is repeated.

냉장고의 운전방법은 냉동실운전시, 냉동실운전이 실시되었던 시간을 카운트하고 카운트된 시간이 가변주기로 저장되는 단계를 포함할 수 있다.The operation method of the refrigerator may include a step of counting the time at which the freezer operation was performed and storing the counted time in a variable cycle during the freezer operation.

냉장고의 운전방법은 가변주기가 저장된 냉동실운전의 운전사이클이 종료된 후 실시되는 신규 운전사이클의 냉장실운전시, 냉장실도어에 설치된 도어히터를 고정주기로 온,오프시킬 수 있고, 신규 운전사이클의 냉동실운전시, 도어히터를 가변주기로 온,오프시키는 단계를 포함할 수 있다.The operation method of the refrigerator may turn on or off the door heater installed in the refrigerating chamber door at a fixed cycle during the refrigerating operation of a new operation cycle that is executed after the operation cycle of the freezer operation in which the variable cycle is stored, and the freezer operation of the new operation cycle. At the time, the door heater may include the step of turning on, off in a variable cycle.

신규 운전사이클의 운전정지시 도어히터를 고정주기로 온,오프시킬 수 있다.The door heater can be turned on and off in a fixed cycle when the operation stops for a new operating cycle.

본 발명의 실시 예에 따르면, 냉장실운전 후 실시되는 냉동실운전의 도중에 도어히터의 평균온도가 높고, 냉동실운전의 도중에 도어히터의 평균온도가 낮을 때 발생될 수 있는 냉장실도어나 캐비닛의 이슬맺힘을 최소화할 수 있다. According to an exemplary embodiment of the present invention, the dew point of the refrigerating chamber door or the cabinet may be minimized when the average temperature of the door heater is high during the freezer operation after the refrigerating chamber operation and the average temperature of the door heater during the freezer operation is low. can do.

도 1은 본 발명의 실시 예에 따른 냉장고의 내부가 도시된 정면도,
도 2는 본 발명의 실시 예에 따른 냉장고의 내부가 도시된 단면도,
도 3은 본 발명의 실시 예에 따른 냉장고의 냉동사이클장치가 도시된 도,
도 4는 본 발명의 실시 예에 따른 냉장고의 제어 블록도,
도 5는 본 발명의 실시 예에 따른 냉장고의 운전방법이 도시된 순서도,
도 6은 본 발명의 실시 예와 비교되는 비교예의 냉장실온도와 냉동실온도와 도어히터의 온도 변화가 도시된 도,
도 7은 본 발명의 실시 예에 따른 냉장고의 냉장실온도와 냉동실온도와 도어히터의 온도변화가 도시된 도이다.1 is a front view showing the inside of a refrigerator according to an embodiment of the present invention;
2 is a cross-sectional view showing the inside of a refrigerator according to an embodiment of the present invention;
3 is a view showing a refrigeration cycle apparatus of a refrigerator according to an embodiment of the present invention,
4 is a control block diagram of a refrigerator according to an embodiment of the present invention;
5 is a flowchart illustrating a method of operating a refrigerator according to an embodiment of the present invention;
6 is a view showing a temperature change of the refrigerator compartment temperature and the freezer compartment temperature and the door heater of the comparative example compared with the embodiment of the present invention,
7 is a view showing a temperature change of the refrigerator compartment temperature, the freezer compartment temperature and the door heater of the refrigerator according to an embodiment of the present invention.

이하에서는 본 발명의 구체적인 실시 예를 도면과 함께 상세히 설명하도록 한다. Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 실시 예에 따른 냉장고의 내부가 도시된 정면도이고, 도 2는 본 발명의 실시 예에 따른 냉장고의 내부가 도시된 단면도이며, 도 3은 본 발명의 실시 예에 따른 냉장고의 냉동사이클장치가 도시된 도이고, 도 4는 본 발명의 실시 예에 따른 냉장고의 제어 블록도이다.1 is a front view showing the inside of the refrigerator according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the inside of the refrigerator according to an embodiment of the present invention, Figure 3 is a refrigerator according to an embodiment of the present invention 4 is a view illustrating a refrigeration cycle apparatus, and FIG. 4 is a control block diagram of a refrigerator according to an embodiment of the present invention.

냉장고는 냉장실(R)과 냉동실(F)이 형성된 캐비넷(1)과, 냉장실(R)을 개폐하는 냉장실도어(2)와, 냉동실(F)를 개폐하는 냉동실도어(3)를 포함할 수 있다. The refrigerator may include a cabinet 1 in which a refrigerator compartment R and a freezer compartment F are formed, a refrigerator compartment door 2 that opens and closes the refrigerator compartment R, and a freezer compartment door 3 that opens and closes the freezer compartment F. .

캐비닛(1)은 냉장실(R)과 냉동실(F)을 구획하는 베리어(10)를 포함할 수 있다. 캐비닛(1)은 외관을 형성하는 아우터 케이스(11)와, 냉장실(R)이 형성된 냉장실 이너 케이스(12)와, 냉동실(F)이 형성된 냉동실 이너 케이스(13)를 포함할 수 있다. The cabinet 1 may include a barrier 10 partitioning the refrigerating chamber R and the freezing chamber F. The cabinet 1 may include an outer case 11 forming an exterior, a refrigerating compartment inner case 12 having a refrigerating compartment R, and a freezing compartment inner case 13 having a freezing compartment F formed therein.

냉장실도어(2) 및 냉동실도어(3)은 캐비닛(1)에 힌지로 회동 가능하게 연결될 수 있고, 그 각각은 단수개 또는 복수개 구비될 수 있다. The refrigerating compartment door 2 and the freezing compartment door 3 may be rotatably connected to the cabinet 1 by a hinge, and each of them may be provided in singular or plural.

냉장고는 냉장실(R)을 개폐하는 냉장실도어(2)에 설치된 도어히터(4)를 포함할 수 있다. The refrigerator may include a door heater 4 installed in the refrigerator compartment door 2 that opens and closes the refrigerator compartment R.

냉장고는 냉장실(R)의 온도를 감지하는 냉장실온도센서(5)와, 냉동실(F)의 온도를 감지하는 냉동실온도센서(6)을 포함할 수 있다. The refrigerator may include a refrigerating compartment temperature sensor 5 detecting a temperature of the refrigerating compartment R and a freezing compartment temperature sensor 6 detecting a temperature of the freezing compartment F.

냉장고는 도 3에 도시된 바와 같이, 냉매를 압축하는 압축기(90)와, 압축기(90)에서 압축된 냉매가 응축되는 응축기(91)와, 응축기(91)에서 응축된 냉매를 팽창시키는 팽창기구(92)(93)과, 팽창기구(92)(93)에 의해 팽창된 냉매가 증발되는 냉장실증발기(94) 및 냉동실증발기(95)를 포함할 수 있다.As shown in FIG. 3, the refrigerator includes a compressor 90 for compressing a refrigerant, a condenser 91 for condensing the refrigerant compressed in the compressor 90, and an expansion mechanism for expanding the refrigerant condensed in the condenser 91. And a refrigerator compartment evaporator 94 and a freezer compartment evaporator 95 in which the refrigerant expanded by the expansion mechanisms 92 and 93 is evaporated.

팽창기구(92)(93)는 냉장실증발기(94)로 유동되는 냉매를 팽창시키는 냉장실 팽창기구(92)과, 냉동실증발기(95)로 유동되는 냉매를 팽창시키는 냉동실팽창기구(93)를 포함할 수 있다. The expansion mechanisms 92 and 93 include a refrigerator compartment expansion mechanism 92 for expanding the refrigerant flowing into the refrigerator compartment evaporator 94 and a freezer compartment expansion mechanism 93 for expanding the refrigerant flowing into the freezer compartment evaporator 95. Can be.

그리고, 냉장고는 냉매를 냉장실을 냉각하는 냉장실증발기(94)로 안내하거나 냉매를 냉동실을 냉각하는 냉동실증발기(95)로 안내하는 전환밸브(96)을 포함할 수 있다. The refrigerator may include a switching valve 96 for guiding the refrigerant to the refrigerator compartment evaporator 94 for cooling the refrigerator compartment or for guiding the refrigerant to the freezer compartment evaporator 95 for cooling the freezer compartment.

전환밸브(96)는 응축기(91)를 통과한 냉매를 냉장실팽창기구(92)나 냉동실팽창기구(93)로 안내할 수 있다. The switching valve 96 may guide the refrigerant having passed through the condenser 91 to the refrigerating chamber expansion mechanism 92 or the freezing chamber expansion mechanism 93.

냉장고는 응축기(91)로 외기를 송풍하는 응축팬(97)를 포함할 수 있다. 그리고, 냉장고는 냉장실(R)의 냉기를 냉장실증발기(94)와 냉장실(R)로 순환시키는 냉장실팬(98)과, 냉동실(F)의 냉기를 냉동실증발기(95)와 냉동실(F)로 순환시키는 냉동실팬(99)를 더 포함할 수 있다. The refrigerator may include a condensation fan 97 that blows outside air to the condenser 91. The refrigerator circulates the cold room fan 98 that circulates the cold air of the refrigerating compartment R to the refrigerating compartment evaporator 94 and the refrigerating compartment R, and the cold air of the freezing compartment F to the freezer evaporator 95 and the freezer compartment F. It may further include a freezer compartment fan 99.

냉장고는 도어히터(4)와, 압축기(91) 및 전환밸브(96)를 제어하는 제어부(100)를 포함할 수 있다. The refrigerator may include a door heater 4, a controller 100 for controlling the compressor 91 and the switching valve 96.

제어부(100)는 냉장실(R)을 냉각하는 냉장실운전(R운전)을 실시하거나, 냉동실(F)을 냉각하는 냉동실운전(F운전)을 실시하거나, 압축기(91)를 정지시킨 후 유지시키는 압축기정지를 실시할 수 있다. The control unit 100 performs a refrigerator compartment operation (R operation) for cooling the refrigerating compartment (R), performs a freezer compartment operation (F operation) for cooling the freezer compartment (F), or stops and maintains the compressor 91 after the compressor. You can stop.

냉장고는 냉장실온도센서(5)에서 감지된 냉장실(R)의 온도(이하, 냉장실온도라 칭함)가 냉장실 목표온도의 상한온도로 상승되면, 냉장실운전이 개시될 수 있고, 냉장실온도가 냉장실 목표온도의 하한온도로 하강되면, 냉장실운전이 종료될 수 있다. When the temperature of the refrigerator compartment R (hereinafter, referred to as the refrigerator compartment temperature) sensed by the refrigerator compartment temperature sensor 5 rises to an upper limit of the refrigerator compartment target temperature, the refrigerator may start a refrigerator compartment operation, and the refrigerator compartment temperature is the refrigerator compartment target temperature. When the temperature is lowered to the lower limit temperature, the refrigerator compartment operation may be terminated.

냉장실 목표온도의 상한온도는 냉장실 목표온도 보다 소정온도(예를 들면, 1.5℃) 높게 설정된 온도일 수 있고, 냉장실 목표온도의 하한온도는 냉장실 목표온도 보다 소정온도(예를 들면, 1.5℃) 낮게 설정된 온도일 수 있으며, 냉장실 목표온도가 3℃일 경우, 냉장고는 냉장실온도가 4.5℃로 상승되면, 냉장실운전(R운전)을 개시할 수 있고, 냉장실온도가 1,5℃로 하강되면, 냉장실운전(R운전)을 종료할 수 있다. The upper limit temperature of the refrigerating chamber target temperature may be a temperature set to a predetermined temperature (for example, 1.5 ° C.) higher than the refrigerating chamber target temperature, and the lower limit temperature of the refrigerating chamber target temperature is lower than the refrigerating chamber target temperature (for example, 1.5 ° C.). When the refrigerator compartment target temperature is 3 ° C., the refrigerator may start the refrigerator compartment operation (R operation) when the refrigerator compartment temperature rises to 4.5 ° C., and when the refrigerator compartment temperature decreases to 1,5 ° C., the refrigerator compartment Operation (R operation) can be terminated.

냉장고는 냉동실온도센서(6)에서 감지된 냉동실(F)의 온도(이하, 냉동실온도라 칭함)가 냉동실 목표온도의 상한온도로 상승되면, 냉동실운전이 개시될 수 있고, 냉동실온도가 냉동실 목표온도의 하한온도로 하강되면, 냉동실운전이 종료될 수 있다.The refrigerator may start a freezer operation when the temperature of the freezer compartment F (hereinafter, referred to as a freezer compartment temperature) detected by the freezer compartment temperature sensor 6 rises to an upper limit temperature of the target temperature of the freezer compartment, and the freezer compartment temperature may be the target temperature of the freezer compartment. When the temperature is lowered to the lower limit temperature, the freezer operation may be terminated.

냉동실 목표온도의 상한온도는 냉동실 목표온도 보다 소정온도(예를 들면, 1℃) 높게 설정된 온도일 수 있고, 냉동실 목표온도의 하한온도는 냉동실 목표온도 보다 소정온도(예를 들면, 1℃) 낮게 설정된 온도일 수 있으며, 냉동실 목표온도가 -18℃일 경우, 냉장고는 냉동실온도가 -17℃로 상승되면, 냉동실운전을 개시할 수 있고, 냉장실온도가 -19℃로 하강되면, 냉동실운전을 종료할 수 있다. The upper limit temperature of the target temperature of the freezer compartment may be a predetermined temperature (for example, 1 ° C.) higher than the target temperature of the freezer compartment, and the lower limit temperature of the target temperature of the freezer compartment is lower than the target temperature (eg 1 ° C.) of the target temperature of the freezer compartment. When the freezer target temperature is -18 ° C, the refrigerator may start a freezer operation when the freezer temperature rises to -17 ° C, and end the freezer operation when the freezer temperature drops to -19 ° C. can do.

냉장고는 냉장실운전(R운전)과 냉동실운전(F운전)이 선택적으로 실시될 수 있고, 냉장고가 냉장실운전(R운전)이 개시될 조건이면서, 냉동실운전(F운전)이 개시될 조건이면, 미리 정해진 우선순위에 따라 어느 한 운전(예를 들면, 냉장실운전)이 먼저 실시되고, 먼저 실시된 운전이 종료되면, 다른 운전(예를 들면, 냉동실운전)이 실시될 수 있다. The refrigerator may be selectively operated in a freezer compartment operation (R operation) and a freezer compartment operation (F operation). If the refrigerator is a condition under which a refrigerator compartment operation (R operation) is to be started and a freezer compartment operation (F operation) is to be started, in advance, One operation (for example, a refrigerator compartment operation) is first performed according to a predetermined priority, and another operation (for example, a freezer compartment operation) may be performed when the first operation is completed.

냉장고는 냉장실운전(R운전)의 도중에 냉장실온도가 냉장실운전(R운전)의 종료조건(예를 들면, 냉장실온도가 냉장실 목표온도의 하한온도로 하강)되고, 냉동실온도가 냉동실운전(F운전)의 개시조건(예를 들면, 냉동실온도가 냉동실 목표온도의 상한온도 이상)이면, 냉장실운전(R운전)에서 냉동실운전(F운전)으로 전환되는 것이 가능하다. In the refrigerator, during the refrigerating room operation (R operation), the refrigerating room temperature is the end condition of the refrigerating room operation (R operation) (for example, the refrigerating room temperature drops to the lower limit temperature of the refrigerating chamber target temperature), and the freezer temperature is the freezer operation (F operation). If the start condition (for example, the freezer compartment temperature is equal to or higher than the upper limit temperature of the target target temperature of the freezer compartment), it is possible to switch from the refrigerator compartment operation (R operation) to the freezer operation (F operation).

냉장고는 냉동실운전(F운전)의 도중에 냉동실온도가 냉동실운전(R운전)의 종료조건((예를 들면, 냉동실온도가 냉동실 목표온도의 하한온도로 하강)이고, 냉장실온도가 냉장실운전의 개시조건(예를 들면, 냉장실온도가 냉장실 목표온도의 상한온도 이상)이면, 냉동실운전(F운전)에서 냉장실운전(R운전)으로 전환되는 것이 가능하다. In the refrigerator, the freezer temperature is the end condition of the freezer operation (R operation) (for example, the freezer temperature is lowered to the lower limit temperature of the freezer target temperature) during the freezer operation (F operation), and the freezer temperature is the start condition of the refrigerator operation. (For example, if the refrigerator compartment temperature is equal to or higher than the upper limit temperature of the refrigerator compartment target temperature), it is possible to switch from the freezer compartment operation (F operation) to the refrigerator compartment operation (R operation).

냉장고는 냉동실운전(F운전)의 도중에 냉동실온도가 냉동실운전(R운전)의 종료조건((예를 들면, 냉동실온도가 냉동실 목표온도의 하한온도로 하강)이고, 냉장실온도가 냉장실운전의 개시조건(예를 들면, 냉장실온도가 냉장실 목표온도의 상한온도 이상)이 아니면, 압축기(91)를 정지시키고, 냉장실온도가 냉장실운전의 개시조건이 될 때까지, 압축기(91)를 정지 유지시킬 수 있다.(즉, 압축기정지)In the refrigerator, the freezer temperature is the end condition of the freezer operation (R operation) (for example, the freezer temperature is lowered to the lower limit temperature of the freezer target temperature) during the freezer operation (F operation), and the freezer temperature is the start condition of the refrigerator operation. (For example, if the refrigerator compartment temperature is not lower than the upper limit of the refrigerator compartment target temperature), the compressor 91 can be stopped, and the compressor 91 can be stopped and held until the refrigerator compartment temperature becomes the start condition of the refrigerator compartment operation. (Ie compressor stopped)

냉장고는 냉장실운전(R운전)과 냉동실운전(F운전)과 압축기정지가 순차적으로 실시되는 운전사이클(C1,C2)이 반복될 수 있다. The refrigerator may repeat operation cycles C1 and C2 in which a refrigerator compartment operation (R operation), a freezer compartment operation (F operation), and a compressor stop are sequentially performed.

제어부(100)는 압축기(91)와 전환밸브(96)를 제어하는 것에 의해 냉장실운전(R운전)과 냉동실운전(F운전)를 순차적으로 실시할 수 있고, 냉동실운전(F운전)의 종료 후 압축기(91)를 정지시킬 수 있다. The control part 100 can perform a refrigerator compartment operation (R operation) and a freezer compartment operation (F operation) sequentially by controlling the compressor 91 and the switching valve 96, and after completion of a freezer operation (F operation), The compressor 91 can be stopped.

제어부(100)는 냉장실운전(R운전)시, 압축기(91)를 구동하고, 전환밸브(96)를 냉장실공급모드로 제어할 수 있고, 냉매는 냉장실증발기(94)를 통과하면서 냉장실(R)을 냉각할 수 있다. In the refrigerating chamber operation (R operation), the control unit 100 may drive the compressor 91 and control the switching valve 96 in the refrigerating chamber supply mode, and the refrigerant passes through the refrigerating chamber evaporator 94 while the refrigerating chamber R is in operation. Can be cooled.

제어부(100)는 냉동실운전(F운전)시, 압축기(91)를 구동하고 전환밸브(96)을 냉동실공급모드로 제어할 수 있고, 냉매는 냉동실증발기(95)를 통과하면서 냉동실(F)을 냉각할 수 있다. The control unit 100 may drive the compressor 91 and control the switching valve 96 in the freezer supply mode during the freezer operation (F operation), and the refrigerant may pass through the freezer compartment evaporator 95 while operating the freezer compartment F. Can be cooled.

제어부(100)는 상기와 같은 운전사이클(C1,C2)이 반복되는 동안, 도어히터(4)를 고정주기나 가변주기로 온,오프시킬 수 있다. The controller 100 may turn the door heater 4 on and off in a fixed cycle or a variable cycle while the driving cycles C1 and C2 are repeated.

제어부(100)는 도어히터(4)를 고정주기로 온,오프하다가 가변주기로 온,오프할 수 있고, 이후 다시 고정주기로 온,오프할 수 있다. The control unit 100 may turn the door heater 4 on and off in a fixed cycle, and then turn on and off in a variable cycle, and then turn the door heater 4 on and off in a fixed cycle.

제어부(100)는 각 운전사이클(C1,C2)의 냉장실운전(R운전)이거나 압축기 정지시, 도어히터(4)를 고정주기로 온,오프시키는 것을 반복할 수 있다. The control unit 100 may repeat turning on and off the door heater 4 at a fixed cycle when the refrigerator operation (R operation) of each operation cycle (C1, C2) or the compressor is stopped.

여기서, 고정주기는 시간이 경과하더라도 그 주기가 가변되지 않고 일정한 주기일 수 있다. 제어부(100)는 각 운전사이클(C1,C2)의 냉장실운전(R운전)이거나 압축기 정지시, 기설정된 히터 온 설정시간동안 도어히터(4)를 온시킬 수 있고, 도어히터(4)가 온된 후, 온시간이 경과되면, 기설정된 히터 오프 설정시간동안 도어히터(4)를 오프시킬 수 있고, 도어히터(4)는 각 운전사이클(C1,C2)의 냉장실운전(R운전)나 압축기 정지시, 고정주기로 복수회 온,오프될 수 있다. Here, the fixed period may be a constant period without changing the period even if time passes. The control unit 100 may turn on the door heater 4 for a predetermined heater ON setting time when the refrigerator operation (R operation) of the operation cycles C1 and C2 or the compressor is stopped, and the door heater 4 is turned on. After that, when the on time has elapsed, the door heater 4 can be turned off for a preset heater off setting time, and the door heater 4 is in the refrigerating chamber operation (R operation) or the compressor stop of each operation cycle C1, C2. At the time of a fixed period, it can be turned on and off several times.

제어부(100)는 각 운전사이클(C2, 도 7 참조)의 냉동실운전(F운전)시, 이전 운전사이클(C1,도 7 참조)의 냉동실운전이 실시되었던 시간(Tc)과 동일한 시간을 갖는 가변주기로 도어히터(4)를 온,오프시킬 수 있다.The control unit 100 has a variable time having the same time as the time Tc at which the freezer operation of the previous operation cycle C1 (see FIG. 7) was performed during the freezer operation (F operation) of each operation cycle C2 (see FIG. 7). The door heater 4 can be turned on and off periodically.

여기서, 가변주기는 각 운전사이클(C1,C2)마다 변경될 수 있는 주기로서, 각 운전사이클(C2, 도 7 참조)이 실시되기 이전의 운전사이클(C1, 도 7 참조)에서 결정될 수 있고, 이와 같이 이전 운전사이클(C1)에서 결정된 가변주기에 따라 도어히터(4)의 온,오프 주기가 매 운전사이클마다 변경이 가능할 수 있다.Here, the variable period is a period that can be changed for each driving cycle (C1, C2), it can be determined in the driving cycle (C1, see Fig. 7) before each driving cycle (C2, see Figure 7), As described above, the on / off cycle of the door heater 4 may be changed in every driving cycle according to the variable cycle determined in the previous driving cycle C1.

그리고, 가변주기는 냉동실운전(F운전)의 도중에 도어히터(4)를 1회 온,오프시키는 주기이고, 제어부(100)는 냉동실운전(F운전)이 개시된 후, 냉장실운전(R운전)의 도중에 고정주기로 온,오프되던 도어히터(4)가 냉동실운전(F운전)의 도중에 최초로 오프되면, 냉동실운전 도중의 도어히터(4)가 오프된 시점부터, 가변주기로 도어히터(4)를 온시켰다가 오프시킬 수 있다.Then, the variable cycle is a cycle for turning the door heater 4 on and off once during the freezer operation (F operation), and the control unit 100 performs the freezer operation (R operation) after the freezer operation (F operation) is started. When the door heater 4, which has been turned on and off in a fixed cycle, is turned off for the first time during the freezer operation (F operation), the door heater 4 is turned on in a variable cycle from the time when the door heater 4 during the freezer operation is turned off. Can be turned off.

냉장고는 냉동실운전(F운전)이 실시되는 시간(Tc)이 카운트되는 카운터(110)를 더 포함할 수 있다. 카운터(110)에서 카운트된 시간은 메모리(120)에 저장되어 가변주기에 사용될 수 있다.The refrigerator may further include a counter 110 in which a time Tc at which a freezer operation (F operation) is performed is counted. The time counted by the counter 110 may be stored in the memory 120 and used for a variable period.

냉장고는 고정주기 및 가변주기가 저장되는 메모리(120)를 더 포함할 수 있다.The refrigerator may further include a memory 120 in which a fixed cycle and a variable cycle are stored.

제어부(100)는 냉장실운전(R운전) 및 압축기정지시 메모리(120)에 저장된 고정주기로 도어히터(4)를 온,오프시키는 것을 반복할 수 있다.The controller 100 may repeat turning on and off the door heater 4 at a fixed cycle stored in the memory 120 during the refrigerating chamber operation (R operation) and the compressor stop.

그리고, 제어부(100)는 냉장실운전(R운전) 후 실시되는 냉동실운전(F운전)시, 메모리(120)에 저장된 가변주기로 도어히터(4)를 온,오프시킬 수 있다.In addition, the control unit 100 may turn the door heater 4 on and off at variable cycles stored in the memory 120 during the freezer operation (F operation) performed after the refrigerating chamber operation (R operation).

메모리(120)에 저장된 가변주기는 도어히터(4)를 온시켰다가 오프시키는 것을 1회 시키는 주기로서, 메모리(120)에 저장된 가변주기가 길수록 냉동실운전(F운전) 도중에 도어히터(4)를 온 유지시키는 시간(Ton)이 길고, 반대로, 메모리(120)에 저장된 가변주기가 짧을수록 냉동실운전(F운전) 도중에 도어히터(4)를 온 유지시키는 시간(Ton)이 짧을 수 있다.The variable period stored in the memory 120 is a cycle for turning the door heater 4 on and off once. The longer the variable period stored in the memory 120, the more the door heater 4 is operated during the freezer operation (F operation). On the contrary, the shorter the variable period stored in the memory 120, the shorter the time Ton for keeping the door heater 4 on during the freezer operation (F operation) may be shorter.

제어부(100)는 냉장실운전 및 압축기 정지시 메모리(120)에 저장된 고정주기로 도어히터(4)를 온,오프시키는 것을 반복할 수 있다. 그리고, 제어부(100)는 냉장실운전(R운전)후 실시되는 냉동실운전(F운전)시, 메모리(120)에 저장된 가변주기로 도어히터(4)를 온시켰다가 오프시킬 수 있다.The controller 100 may repeat turning on and off the door heater 4 at a fixed cycle stored in the memory 120 at the refrigerating chamber operation and the compressor stop. In addition, the control unit 100 may turn on and off the door heater 4 at a variable cycle stored in the memory 120 during the freezer operation (F operation) performed after the refrigerator compartment operation (R operation).

한편, 제어부(100)는 냉장고로 전원이 투입된 후 실시되는 최초 운전사이클의 냉동실운전(F운전)시, 도어히터(3)를 메모리(120)에 저장되어 있는 고정주기로 온,오프시킬 수 있고, 이 경우, 냉동실운전(F운전) 도중에, 도어히터(4)는 복수회 온,오프될 수 있다. On the other hand, the control unit 100 may turn on and off the door heater 3 at a fixed cycle stored in the memory 120 during the freezer operation (F operation) of the initial operation cycle that is performed after the power is supplied to the refrigerator. In this case, during the freezer compartment operation (F operation), the door heater 4 can be turned on and off a plurality of times.

한편, 제어부(100)는 최초 운전사이클 이후에 실시되는 운전사이클(C2)의 냉동실운전(F운전)부터 도어히터(4)를 가변주기로 온,오프시킬 수 있다. On the other hand, the control unit 100 may turn on and off the door heater 4 in a variable cycle from the freezer compartment operation (F operation) of the operation cycle C2 performed after the initial operation cycle.

도 5는 본 발명의 실시 예에 따른 냉장고의 운전방법이 도시된 순서도이다. 5 is a flowchart illustrating a method of operating a refrigerator according to an embodiment of the present invention.

본 실시예의 냉장고의 운전방법은 냉장실운전과 냉동실운전과 압축기정지가 순차적으로 실시되는 운전사이클이 반복될 수 있다.In the operation method of the refrigerator of the present embodiment, an operation cycle in which a refrigerator compartment operation, a freezer compartment operation and a compressor stop are sequentially performed may be repeated.

냉장고의 운전방법은 냉동실운전(F)시, 냉동실 운전(F)이 실시되었던 시간(Tc, 도 7 참조)을 카운트하고 카운트된 시간이 가변주기로 저장되는 단계(S1)를 포함할 수 있다. The operation method of the refrigerator may include a step S1 of counting the time Tc (see FIG. 7) at which the freezer operation F was performed and storing the counted time in a variable cycle during the freezer operation F. FIG.

냉장고의 운전방법은 가변주기가 저장된 냉동실운전의 운전사이클(C1, 도 7 참조)이 종료된 후 실시되는 신규 운전사이클(C2)의 냉장실운전(R운전)시, 냉장실도어(2)에 설치된 도어히터(4)를 고정주기로 온,오프시키고, 신규 운전사이클(C1)의 냉동실운전(F운전)시, 도어히터(4)를 가변주기로 온,오프시키는 단계(S2)(S3)(S4)(S5)를 포함할 수 있다. The operation method of the refrigerator is a door installed in the refrigerating chamber door 2 during the refrigerating chamber operation (R operation) of the new operation cycle C2 which is executed after the operation cycle C1 (see FIG. 7) of the freezer operation in which the variable cycle is stored is finished. The heater 4 is turned on and off at a fixed cycle, and the door heater 4 is turned on and off at a variable cycle during the freezer operation (F operation) of the new operation cycle C1 (S2) (S3) (S4) ( S5) may be included.

한편, 냉장고의 운전방법은 도어히터(4)를 고정주기로 오프시키거나 가변주기로 오프시키는 단계시, 신규 운전사이클의 운전정지이면, 도어히터(4)를 고정주기로 온,오프시킬 수 있다.  On the other hand, in the operation method of the refrigerator, when the door heater 4 is turned off at a fixed cycle or off at a variable cycle, the door heater 4 may be turned on and off at a fixed cycle when the operation of the new driving cycle is stopped.

도 6은 본 발명의 실시 예와 비교되는 비교예의 냉장실온도와 냉동실온도와 도어히터의 온도 변화가 도시된 도이고, 도 7은 본 발명의 실시 예에 따른 냉장고의 냉장실온도와 냉동실온도와 도어히터의 온도변화가 도시된 도이다. 6 is a view showing a temperature change of the refrigerator compartment temperature, the freezer compartment temperature and the door heater of the comparative example compared to the embodiment of the present invention, Figure 7 is a refrigerator compartment temperature and freezer compartment temperature and door heater of the refrigerator according to the embodiment of the present invention The temperature change of is shown.

비교예는, 냉장실운전(R운전)과 냉동실운전(F운전) 및 압축기정지와 무관하게, 각 운전사이클(C1,C2)시, 도어히터(4)를 고정주기로 온,오프시키는 예이다.The comparative example is an example in which the door heater 4 is turned on and off at a fixed cycle during each of the operation cycles C1 and C2 regardless of the refrigerator compartment operation (R operation), the freezer compartment operation (F operation) and the compressor stop.

반면에, 본 실시예는 냉장실운전(R운전)시 도어히터(4)를 고정주기로 온,오프시키고, 냉동실운전(F운전)시, 이전 운전사이클의 냉동실운전이 실시되었던 시간(Tc)에 의해 결정된 가변주기로 도어히터(4)를 온,오프시키며, 압축기정지시 도어히터(4)를 고정주기로 온,오프시키는 예이다.On the other hand, in the present embodiment, the door heater 4 is turned on and off at a fixed cycle during the refrigerating compartment operation (R operation), and during the freezer operation (F operation), by the time Tc at which the freezer operation of the previous operation cycle was performed. The door heater 4 is turned on and off at a determined variable cycle, and the door heater 4 is turned on and off at a fixed cycle when the compressor is stopped.

비교예의 경우, 냉장실운전(R운전)이 완료되고, 냉동실운전이 계속되는 동안, 냉장실 내의 부하 상승에 의해 고정주기로 온,오프되는 도어히터(4)의 온,오프 주기당 평균온도(Tave1, Tave2)는 시간이 경과함에 따라 20.3℃, 20.4℃ 등과 같이 온도 산포가 발생될 수 있고, 이와 같은 온도 산포의 발생시, 특히 평균온도(Tave1)가 낮은 시기(Ts)에 냉장실도어(2)나 캐비닛(1)에 이슬이 발생될 수 있다. In the comparative example, while the refrigerating chamber operation (R operation) is completed and the freezing chamber operation is continued, the average temperature (Tave1, Tave2) per on / off cycle of the door heater 4, which is turned on and off in a fixed cycle by rising load in the refrigerating chamber. The temperature spread may occur as time passes, such as 20.3 ° C., 20.4 ° C., and at the time when the temperature spread occurs, in particular, when the average temperature Tave 1 is low Ts, the refrigerator door 2 or the cabinet 1 Dew) may occur.

반면에, 본 실시예는, 비교예에서 도어히터(4)의 평균온도가 낮은 시기(즉, 냉장실운전이 완료되고 냉장실운전이 진행되는 초기 시점)에, 도어히터(4)의 온시간(Ton) 및 오프시칸(Toff)을 늘리는 것에 의해 도어히터(4)의 평균온도(Tave3)를 전체적으로 높일 수 있고, 각 운전사이클(C1,C2)의 특정 시기(즉, 냉장실운전 완료 후 냉동실운전이 실시되는 도중)에서 도어히터(4)의 평균온도(Tave3)가 낮지 않게 할 수 있고, 냉장실도어(2)나 캐비닛(1)에 이슬이 발생되는 것을 최소화할 수 있다. On the other hand, in the present embodiment, the on-time (Ton) of the door heater 4 at the time when the average temperature of the door heater 4 in the comparative example is low (that is, the initial time when the refrigerator compartment operation is completed and the refrigerator compartment operation is in progress). ) And the off-seakan Toff can increase the average temperature Tab3 of the door heater 4 as a whole, and the freezer operation is stopped after a certain period of time (ie, after the refrigerating chamber operation is completed) of each operation cycle C1 and C2. During the implementation), the average temperature Tab3 of the door heater 4 may not be low, and the occurrence of dew in the refrigerating chamber door 2 or the cabinet 1 may be minimized.

이상의 설명은 본 발명의 기술 사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention.

따라서, 본 발명에 개시된 실시 예들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시 예에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

4: 도어히터 96: 전환밸브
100: 제어부4: door heater 96: switching valve
100: control unit

Claims (6)

냉장실운전과 냉동실운전과 압축기정지가 순차적으로 실시되는 운전사이클이 반복되는 냉장고에 있어서,
냉장실을 개폐하는 냉장실도어에 설치된 도어히터와;
냉매를 냉장실을 냉각하는 냉장실증발기로 안내하거나 냉매를 냉동실을 냉각하는 냉동실증발기로 안내하는 전환밸브와;
상기 도어히터와, 전환밸브와 압축기를 제어하는 제어부를 포함하고,
상기 제어부는 각 운전사이클의 냉동실운전시, 이전 운전사이클의 냉동실운전이 실시되었던 시간에 의해 결정된 가변주기로 상기 도어히터를 온,오프시키는 냉장고. In a refrigerator in which an operation cycle in which a refrigerator compartment operation, a freezer compartment operation and a compressor stop are sequentially performed is repeated,
A door heater installed in the refrigerating chamber door to open and close the refrigerating chamber;
A switching valve for guiding the refrigerant to a refrigerator compartment evaporator for cooling the refrigerator compartment or for guiding the refrigerant to a freezer compartment evaporator for cooling the freezer compartment;
It includes a control unit for controlling the door heater, the switching valve and the compressor,
The control unit is a refrigerator for turning on and off the door heater in a variable cycle determined by the time when the freezer operation of the previous operation cycle during the freezer operation of each operation cycle. 제 1 항에 있어서,
상기 제어부는
냉장실운전이거나 압축기 정지시, 상기 도어히터를 고정주기로 온,오프시키는 것을 반복하는 냉장고. The method of claim 1,
The control unit
The refrigerator repeats turning on and off the door heater at a fixed cycle when the refrigerator is operating or when the compressor is stopped. 제 2 항에 있어서,
상기 냉동실운전이 실시되는 시간이 카운트되는 카운터와;
상기 고정주기 및 가변주기가 저장되는 메모리를 더 포함하는 냉장고.The method of claim 2,
A counter for counting a time at which the freezer operation is performed;
And a memory in which the fixed cycle and the variable cycle are stored. 제 1 항에 있어서,
상기 제어부는 냉장고로 전원이 투입된 후 실시되는 최초 운전사이클의 냉동실 운전시, 상기 도어히터를 상기 고정주기로 온,오프시키고
상기 최초 운전사이클 이후에 실시되는 운전사이클의 냉동실운전시, 상기 도어히터를 상기 가변주기로 온,오프시키는 냉장고. The method of claim 1,
The control unit turns on and off the door heater at the fixed cycle during the freezer operation of the first operation cycle that is performed after the power is supplied to the refrigerator.
The refrigerator for turning on and off the door heater in the variable period during the freezer compartment operation of the operation cycle performed after the initial operation cycle. 냉장실운전과 냉동실운전과 압축기정지가 순차적으로 실시되는 운전사이클이 반복되는 냉장고의 운전방법에 있어서,
냉동실 운전시, 상기 냉동실 운전이 실시되었던 시간을 카운트하고 카운트된 시간이 가변주기로 저장되는 단계와;
상기 가변주기가 저장된 냉동실운전의 운전사이클이 종료된 후 실시되는 신규 운전사이클의 냉장실운전시, 냉장실도어에 설치된 도어히터를 고정주기로 온,오프시키고, 상기 신규 운전사이클의 냉동실운전시, 상기 도어히터를 상기 가변주기로 온,오프시키는 단계를 포함하는 냉장고의 운전방법.In the operation method of the refrigerator in which the operation cycle in which the refrigerator compartment operation, the freezer compartment operation and the compressor stop are sequentially performed is repeated,
Counting the time at which the freezer operation was performed and storing the counted time in a variable cycle during a freezer operation;
When the refrigerator operation of the new operation cycle is performed after the operation cycle of the freezer operation in which the variable period is stored, the door heater installed in the refrigerating chamber door is turned on and off at a fixed cycle, and the door heater is operated during the freezer operation of the new operation cycle. Operating method of the refrigerator comprising the step of turning on, off the variable period. 제 5 항에 있어서,
상기 신규 운전사이클의 운전정지시 상기 도어히터를 상기 고정주기로 온,오프시키는 냉장고의 운전방법.The method of claim 5,
Operating method of the refrigerator to turn on and off the door heater in the fixed cycle when the operation of the new driving cycle is stopped.
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CN112833605A (en) * 2019-11-25 2021-05-25 博西华电器（江苏）有限公司 Refrigeration device and method for a refrigeration device

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Publication number Priority date Publication date Assignee Title
KR20150086883A (en) 2014-01-21 2015-07-29 주식회사 대유위니아 Method for controlling door heater of refrigerator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150086883A (en) 2014-01-21 2015-07-29 주식회사 대유위니아 Method for controlling door heater of refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112833605A (en) * 2019-11-25 2021-05-25 博西华电器（江苏）有限公司 Refrigeration device and method for a refrigeration device
CN112833605B (en) * 2019-11-25 2023-12-22 博西华电器（江苏）有限公司 Refrigeration device and method for a refrigeration device

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