KR20190095804A - Refrigerator and Control method of the same - Google Patents

Refrigerator and Control method of the same Download PDF

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Publication number
KR20190095804A
KR20190095804A KR1020180015248A KR20180015248A KR20190095804A KR 20190095804 A KR20190095804 A KR 20190095804A KR 1020180015248 A KR1020180015248 A KR 1020180015248A KR 20180015248 A KR20180015248 A KR 20180015248A KR 20190095804 A KR20190095804 A KR 20190095804A
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KR
South Korea
Prior art keywords
compartment
refrigerator
evaporator
freezer
temperature
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KR1020180015248A
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Korean (ko)
Inventor
신성구
안부환
허진석
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엘지전자 주식회사
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Priority to KR1020180015248A priority Critical patent/KR20190095804A/en
Publication of KR20190095804A publication Critical patent/KR20190095804A/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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • 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
    • F25D17/067—Evaporator fan units
    • 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
    • F25D2600/06—Controlling according to a predetermined profile
    • 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
    • F25D2700/10—Sensors measuring the temperature of the evaporator

Abstract

The present invention relates to a refrigerator and an operation method thereof. According to the present invention, the refrigerator comprises: a refrigerating chamber evaporator and a freezing chamber evaporator; a conversion valve which is controlled in a refrigerating chamber supply mode, which supplies a refrigerant to the refrigerating chamber evaporator, or is controlled in a freezing chamber supply mode, which supplies the refrigerant to the freezing chamber evaporator; a refrigerating chamber fan which circulates the cold air in the refrigerating chamber to the refrigerating chamber evaporator and the refrigerating chamber; a freezing chamber fan which circulates the cold air in the freezing chamber to the freezing chamber evaporator and the freezing chamber; a refrigerating chamber evaporator temperature sensor which detects the temperature of the refrigerating chamber evaporator; and a control unit which controls the conversion valve, the freezing chamber fan, and the refrigerating chamber fan. The control unit is able to, when operating the refrigerating chamber, control the conversion valve in the freezing chamber supply mode and drive the refrigerating chamber fan to, when the conversion valve is converted into the freezing chamber operation during the operation of the refrigerating chamber, convert the conversion valve from the refrigerating chamber supply mode into the freezing chamber supply mode, to drive the freezing chamber fan and additionally drive the refrigerating chamber fan when the temperature detected by the refrigerating chamber evaporator temperature sensor during the freezing chamber operation reaches a preset temperature, which stops the refrigerating chamber fan, to delay an increase in the temperature of the refrigerating chamber during the freezing chamber operation as much as possible, to delay the time when the compressor is driven for the refrigerating chamber operation conducted after the freezing chamber operation as much as possible, and to minimize the number of times the compressor turns on and off for the refrigerating chamber 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 냉장실증발기와 냉동실증발기를 갖는 냉장고에 관한 것이다.The present invention relates to a refrigerator and a method of operating the same, and more particularly to a refrigerator having a refrigerator compartment evaporator and a freezer compartment evaporator.

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 일예는 하나의 증발기에 의해 생성된 냉기를 냉동실과 냉장실로 공급하는 것이 가능하다.One example of the refrigerator is to supply cold air generated by one evaporator to the freezer compartment and the refrigerating compartment.

냉장고의 다른 예는 냉동실을 냉각하는 냉동실증발기와, 냉장실을 냉각하는 냉장실증발기를 모두 포함할 수 있고, 이 경우, 냉장고는 냉동실과 냉장실 각각을 독립 냉각할 수 있다.Another 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.

냉동실증발기와 냉장실증발기를 모두 포함하는 냉장고의 일예는 대한민국 공개특허공보 10-2015-0070907 A (2015년06월25일 공개)에 개시되어 있고, 이러한 냉장고는 냉장실증발기의 냉매를 빠르게 회수하기 위하여 냉장실증발기로 냉매가 공급되는 상태에서 냉동실증발기로 냉매가 공급되게 전환되면, 냉장실측 송풍팬이 설정된 시간만큼 더 구동된 후 정지된다. One example of a refrigerator including both a freezer evaporator and a refrigerator compartment evaporator is disclosed in Korean Patent Laid-Open Publication No. 10-2015-0070907 A (June 25, 2015), and such a refrigerator is a refrigerator compartment for quickly recovering refrigerant in a refrigerator compartment evaporator. When the refrigerant is supplied to the freezer compartment evaporator while the refrigerant is supplied to the evaporator, the refrigerator side blower fan is further driven for a predetermined time and then stopped.

그러나, 상기와 같은 냉장고는 설정된 시간이 경과되면 냉장실측 송풍팬이 정지되므로, 냉장실측 송풍팬의 정지 이후에 냉장실온도가 빠르게 상승될 수 있고, 냉장실증발기의 온도가 낮은 상태(즉, 냉장실증발기가 저압인 상태)에서, 냉장실측 송풍팬이 정지될 수 있어, 냉장실 증발기에 잔존하던 냉매의 회수 속도가 지연될 수 있다. However, in the refrigerator as described above, since the refrigerating side blower is stopped when the set time elapses, the refrigerating compartment temperature may increase rapidly after stopping the refrigerating compartment side blowing fan, and the temperature of the refrigerating chamber evaporator is low (that is, the refrigerating chamber evaporator). In the low pressure state), the refrigerating compartment side blowing fan may be stopped, and the recovery rate of the refrigerant remaining in the refrigerating compartment evaporator may be delayed.

대한민국 공개특허공보 10-2015-0070907 A (2015년06월25일 공개)Republic of Korea Patent Publication No. 10-2015-0070907 A (published June 25, 2015)

본 발명은 냉장실운전에서 냉동실운전에서 전환된 이후에도 냉장실온도의 상승을 최대한 지연시킬 수 있고, 냉장실증발기의 잔류 냉매를 보다 신속하게 회수할 수 있어 냉동실증발기의 과열을 최소화할 수 있는 냉장고 및 그 제어방법을 제공하는데 그 목적이 있다. The present invention can delay the rise of the refrigerating chamber temperature as much as possible even after switching from the freezer operation to the freezer operation, and can recover the residual refrigerant of the refrigerator compartment evaporator more quickly, thereby minimizing overheating of the freezer compartment evaporator and its control method. The purpose is to provide.

본 발명의 실시 예에 따른 냉장고는 냉장실증발기 및 냉동실증발기와; 냉매를 냉장실증발기로 공급하는 냉장실공급모드로 제어되거나 냉매를 냉동실증발기로 공급하는 냉동실공급모드로 제어되는 전환밸브와; 냉장실의 공기를 냉장실증발기와 냉장실로 순환하는 냉장실팬과; 냉동실의 냉기를 냉동실증발기와 냉동실로 순환하는 냉동실팬과; 냉장실증발기의 온도를 감지하는 냉장실증발기 온도센서와; 전환밸브와 냉동실팬 및 냉장실팬을 제어하는 제어부를 포함하고, 제어부는 냉장실운전시 전환밸브를 냉장실공급모드로 제어하고 냉장실팬을 구동하고, 냉장실운전의 도중에 냉동실운전으로 전환되면, 전환밸브를 냉장실공급모드에서 냉동실공급모드로 전환하고 냉동실팬을 구동하며 냉장실팬을 추가 구동하며, 냉동실운전의 도중에 냉장실증발기 온도센서에서 감지된 온도가 설정온도에 도달되면, 냉장실팬을 정지한다.A refrigerator according to an embodiment of the present invention includes a refrigerator compartment evaporator and a freezer compartment evaporator; A switching valve controlled in a refrigerating chamber supply mode for supplying the refrigerant to the refrigerating chamber evaporator or in a freezing chamber supply mode for supplying the refrigerant to the freezing chamber evaporator; A refrigerator compartment fan circulating air in the refrigerator compartment to the refrigerator compartment evaporator and the refrigerator compartment; A freezer compartment circulating cold air in the freezer compartment to the freezer compartment evaporator and the freezer compartment; A refrigerator compartment evaporator temperature sensor for sensing a temperature of the refrigerator compartment evaporator; And a control unit for controlling the switching valve, the freezer compartment fan, and the refrigerating compartment fan, wherein the control unit controls the switching valve to the refrigerating compartment supply mode during the refrigerating compartment operation, drives the refrigerating compartment fan, and switches to the freezer compartment operation during the refrigerating compartment operation. It switches from the supply mode to the freezer compartment supply mode, drives the freezer compartment fan, drives the refrigerating compartment fan further, and stops the refrigerator compartment fan when the temperature detected by the refrigerator compartment evaporator temperature sensor reaches the set temperature during the operation of the freezer compartment.

제어부는 냉장실증발기 온도센서에서 감지된 온도가 -2℃ 내지 0℃ 범위 내에서 설정된 설정온도로 상승되면, 냉장실팬을 정지할 수 있다.The controller may stop the refrigerator compartment fan when the temperature detected by the refrigerator compartment evaporator temperature sensor rises to a set temperature set within a range of -2 ° C to 0 ° C.

본 발명의 실시예에 따른 냉장고의 운전방법은 전환밸브에 의해 냉매를 냉장실증발기나 냉동실증발기로 공급하는 냉장고의 운전방법에 있어서, 냉장실운전시 전환밸브가 냉장실공급모드이고 냉장실팬이 구동되는 단계와; 냉장실운전의 도중에 냉동실운전으로 전환되면 전환밸브가 냉장실공급모드에서 냉동실공급모드로 전환되고 냉동실팬이 구동되며 냉장실팬이 추가 구동되는 단계와; 냉동실운전의 도중에 냉장실증발기 온도센서에서 감지된 온도가 설정온도에 도달되면 냉장실팬이 정지되는 단계를 포함한다.In the method of operating a refrigerator according to an embodiment of the present invention, a refrigerator operating method for supplying a refrigerant to a refrigerator compartment evaporator or a freezer compartment evaporator by a switching valve, wherein the switching valve is a refrigerator compartment supply mode and a refrigerator compartment fan is driven during a refrigerator compartment operation. ; Switching to a freezer compartment operation mode from the refrigerating compartment supply mode to the freezer compartment supply mode, driving the freezer compartment fan, and refrigerating compartment fan during the refrigerating compartment operation; And refrigerating of the refrigerator compartment fan when the temperature detected by the refrigerator compartment evaporator temperature sensor reaches a preset temperature during the operation of the freezer compartment.

설정온도는 -2℃ 내지 0℃ 범위 내에서 설정될 수 있다.The set temperature may be set within the range of -2 ° C to 0 ° C.

본 발명의 실시 예에 따르면, 냉동실모드시 냉장실증발기 온도센서에서 감지된 온도가 설정온도에 도달될 때까지, 냉장실팬이 구동되어, 냉장실온도의 상승이 최대한 지연될 수 있고, 냉동실운전 이후에 실시되는 냉장실운전을 위해 압축기가 구동되는 시기를 최대한 늦출 수 있으며, 냉장실운전을 위한 압축기의 온,오프 횟수를 최소화할 수 있는 이점이 있다. According to an embodiment of the present invention, the refrigerator compartment fan is driven until the temperature detected by the refrigerator compartment evaporator temperature sensor in the freezer mode reaches a set temperature, so that the increase in the refrigerator compartment temperature may be delayed as much as possible, and is performed after the freezer operation. When the compressor is driven for the refrigerating room operation can be delayed as much as possible, there is an advantage that can minimize the number of on, off of the compressor for the refrigerating room operation.

또한, 냉장실증발기의 압력이 높아질 때까지, 냉장실팬을 구동시킨 후 냉장실팬을 정지할 수 있어, 냉장실증발기에 잔류하는 냉매를 최대한 신속하게 회수시킬 수 있고, 냉장실증발기 내 냉매의 회수가 지연될 때 발생될 수 있는 냉동실증발기의 과열을 최소화할 수 있는 이점이 있다. In addition, the refrigerator compartment fan can be stopped after the refrigerator compartment fan is operated until the pressure of the refrigerator compartment evaporator becomes high, so that the refrigerant remaining in the refrigerator compartment evaporator can be recovered as quickly as possible, and when the recovery of the refrigerant in the refrigerator compartment evaporator is delayed. There is an advantage that can minimize the overheating of the freezer evaporator that can be generated.

또한, 냉장실팬의 소비전력을 최소화할 수 있는 이점이 있다. In addition, there is an advantage that can minimize the power consumption of the refrigerator compartment fan.

도 1은 본 발명의 실시 예에 따른 냉장고의 냉동사이클장치가 도시된 도,
도 2는 본 발명의 실시 예에 따른 냉장고의 내부가 도시된 단면도,
도 3은 본 발명의 실시 예에 따른 냉장고의 제어 블록도,
도 4는 본 발명의 실시 예에 따른 냉장고의 제어 방법이 도시된 순서도,
도 5는 본 발명의 실시 예의 비교예가 냉장실운전에서 냉동실운전으로 전환되는 도중일 때의 온도변화가 도시된 도,
도 6은 본 발명의 실시 예의 냉장고가 냉장실운전에서 냉동실운전으로 전환되는 도중일 때의 온도변화가 도시된 도,
도 7은 본 발명의 실시 예의 비교예가 냉동실운전일 때의 온도변화가 도시된 도,
도 8은 본 발명의 실시 예의 냉장고가 냉동실운전일 때의 온도변화가 도시된 도이다.1 is a view showing a refrigeration cycle apparatus 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 control block diagram of a refrigerator according to an embodiment of the present invention;
4 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention;
5 is a view showing a temperature change when the comparative example of the embodiment of the present invention is in the middle of the transition from the refrigerator operation to the freezer operation,
6 is a view showing a temperature change when the refrigerator is in the middle of switching from the refrigerator compartment operation to the freezer operation of the embodiment of the present invention;
7 is a view showing a temperature change when the comparative example of the embodiment of the present invention in the freezer operation,
8 is a view showing a temperature change when the refrigerator of the embodiment of the present invention in the freezer operation.

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 냉동사이클장치가 도시된 도이고, 도 2는 본 발명의 실시 예에 따른 냉장고의 내부가 도시된 단면도이며, 도 3은 본 발명의 실시 예에 따른 냉장고의 제어 블록도이다.1 is a view showing a refrigeration cycle apparatus of a 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 according to an embodiment of the present invention Control block diagram of a refrigerator.

냉장고는 도 1에 도시된 바와 같이, 냉매가 순환되는 압축기(1)와, 응축기(2)와, 팽창기구(3)와, 냉장실증발기(4) 및 냉동실증발기(5)를 포함할 수 있다.As illustrated in FIG. 1, the refrigerator may include a compressor 1 through which refrigerant is circulated, a condenser 2, an expansion mechanism 3, a refrigerator compartment evaporator 4, and a freezer compartment evaporator 5.

냉장고는 냉장실증발기(4)의 온도를 감지하는 냉장실증발기 온도센서(6)를 포함할 수 있다. The refrigerator may include a refrigerator compartment evaporator temperature sensor 6 that detects a temperature of the refrigerator compartment evaporator 4.

냉장고는 냉매를 냉장실증발기(4) 또는 냉동실증발기(5)로 공급하는 전환밸브(7)을 포함할 수 있다. The refrigerator may include a switching valve 7 for supplying a refrigerant to the refrigerator compartment evaporator 4 or the freezer compartment evaporator 5.

냉장고는 냉장실(R)의 냉기를 냉장실 증발기(4)와 냉장실(R)로 순환하는 냉장실팬(8)과, 냉동실(F)의 냉기를 냉동실 증발기(5)와 냉동실(F)로 순환하는 냉동실팬(9)를 포함할 수 있다. The refrigerator includes a refrigerator compartment fan 8 which circulates the cold air of the refrigerating compartment R to the refrigerating compartment evaporator 4 and the refrigerating compartment R, and a freezer compartment that circulates the cold air of the freezer compartment F to the freezer compartment evaporator 5 and the freezer compartment F. It may comprise a fan (9).

냉장고는 도 2에 도시된 바와 같이, 냉장실(R)과 냉동실(F)이 구획된 캐비넷(10)를 포함할 수 있다. 캐비넷(10)는 냉장실(R)과 냉동실(F)을 구획하는 베리어(101)를 포함할 수 있다. 캐비닛(10)은 냉장고의 외관을 형성하는 아우터 케이스(102)와, 냉장실(R)을 형성하는 냉장실 이너 케이스(103)와, 냉동실(F)을 형성하는 냉동실 이너 케이스(104)를 포함할 수 있다. As illustrated in FIG. 2, the refrigerator may include a cabinet 10 in which a refrigerator compartment R and a freezer compartment F are partitioned. The cabinet 10 may include a barrier 101 partitioning the refrigerating chamber R and the freezing chamber F. As shown in FIG. The cabinet 10 may include an outer case 102 forming an exterior of a refrigerator, a refrigerating compartment inner case 103 forming a refrigerating compartment R, and a freezing compartment inner case 104 forming a freezing compartment F. have.

캐비넷(10)에는 기계실(M)이 냉장실(R) 및 냉동실(F)과 구획되게 형성될 수 있고, 압축기(1)와 응축기(2)는 기계실(M)에 수용될 수 있다. In the cabinet 10, the machine chamber M may be formed to be partitioned from the refrigerating chamber R and the freezing chamber F, and the compressor 1 and the condenser 2 may be accommodated in the machine chamber M.

냉장고는 냉장실(R)을 여닫는 냉장실도어(105)와, 냉동실(F)를 여닫는 냉동실도어(106)를 포함할 수 있다. The refrigerator may include a refrigerator compartment door 105 that opens and closes the refrigerator compartment R and a freezer compartment door 106 that opens and closes the freezer compartment F.

냉장고는 냉장실증발기(4)와 냉동실증발기(5)가 냉매 유동 방향으로 병렬 또는 직렬로 연결될 수 있다. In the refrigerator, the refrigerator compartment evaporator 4 and the freezer compartment evaporator 5 may be connected in parallel or in series in the refrigerant flow direction.

압축기(1)는 응축기(2)와 압축기 출구튜브(11)로 연결될 수 있다. 그리고, 압축기(1)는 냉장실증발기(4) 및 냉동실증발기(5)와 압축기 흡입튜브(12)로 연결될 수 있다. The compressor 1 may be connected to the condenser 2 and the compressor outlet tube 11. In addition, the compressor 1 may be connected to the refrigerator compartment evaporator 4, the freezer compartment evaporator 5, and the compressor suction tube 12.

냉장고는 응축기(2)로 외기를 송풍하는 응축팬(21)를 더 포함할 수 있다. 응축기(2)에는 응축기 출구튜브(22)가 연결될 수 있다. The refrigerator may further include a condensation fan 21 for blowing outside air to the condenser 2. The condenser 2 may be connected to the condenser outlet tube 22.

팽창기구(3)는 냉장실 증발기(4)를 향해 유동되는 냉매를 감압시키는 냉장실 팽창기구(3A)와, 냉동실 증발기(5)를 향해 유동되는 냉매를 감압시키는 냉동실 팽창기구(3B)를 포함할 수 있다. The expansion mechanism 3 may include a refrigerator compartment expansion mechanism 3A for reducing the refrigerant flowing toward the refrigerator compartment evaporator 4, and a freezer compartment expansion mechanism 3B for reducing the refrigerant flowing toward the freezer compartment evaporator 5. have.

냉장실증발기(4)에는 냉장실증발기 입구튜브(41)가 연결될 수 있고, 냉장실증발기 입구튜브(41)는 냉장실 팽창기구(3A)에 연결될 수 있다.The refrigerator compartment evaporator 4 may be connected to the refrigerator compartment evaporator inlet tube 41, and the refrigerator compartment evaporator inlet tube 41 may be connected to the refrigerator compartment expansion mechanism 3A.

냉동실 증발기(5)에는 냉동실증발기 입구튜브(51)가 연결될 수 있고, 냉동실증발기 입구튜브(51)는 냉동실 팽창기구(3B)에 연결될 수 있다. The freezer compartment evaporator 5 may be connected to the freezer compartment evaporator inlet tube 51, and the freezer compartment evaporator inlet tube 51 may be connected to the freezer compartment expansion mechanism 3B.

냉장실증발기 온도센서(6)는 냉장실증발기(4)나 냉장실증발기(4) 주변의 온도를 감지할 수 있다. 냉장실증발기 온도센서(6)는 냉장실증발기(4)에 설치될 수 있고, 냉장실증발기(4)의 일측에 설치될 수 있다. The refrigerator compartment evaporator temperature sensor 6 may detect a temperature around the refrigerator compartment evaporator 4 or the refrigerator compartment evaporator 4. The refrigerator compartment evaporator temperature sensor 6 may be installed in the refrigerator compartment evaporator 4, and may be installed at one side of the refrigerator compartment evaporator 4.

전환밸브(7)에는 응축기 출구튜브(22)가 연결될 수 있다. 전환밸브(7)는 냉장실 팽창기구(3A)와 냉장실 팽창기구 입구튜브(31)로 연결될 수 있다. 전환밸브(7)는 냉동실 팽창기구(3B)와 냉동실 팽창기구 입구튜브(32)로 연결될 수 있다. The condenser outlet tube 22 may be connected to the switching valve 7. The switching valve 7 may be connected to the refrigerator compartment expansion mechanism 3A and the refrigerator compartment expansion mechanism inlet tube 31. The switching valve 7 may be connected to the freezer compartment expansion mechanism 3B and the freezer compartment expansion mechanism inlet tube 32.

전환밸브(7)는 냉장실증발기(4)로 냉매를 공급하는 냉장실공급모드로 제어되거나, 냉동실증발기(5)로 냉매를 공급하는 냉동실공급모드로 제어될 수 있다. 냉장실공급모드와 냉동실공급모드는 선택적으로 실시될 수 있고, 전환밸브(7)는 냉장실공급모드시, 냉장실증발기(4)로 냉매를 공급하는 동안 냉동실증발기(5)로 냉매를 공급하지 않고, 냉동실공급모드시, 냉동실증발기(5)로 냉매를 공급하는 동안 냉장실증발기(4)로 냉매를 공급하지 않을 수 있다. The switching valve 7 may be controlled in a refrigerator compartment supply mode for supplying a refrigerant to the refrigerator compartment evaporator 4 or in a freezer compartment supply mode for supplying a refrigerant to the freezer compartment evaporator 5. The refrigerating compartment supply mode and the freezing compartment supply mode may be selectively implemented, and the switching valve 7 does not supply the refrigerant to the freezer compartment evaporator 5 while supplying the refrigerant to the refrigerator compartment evaporator 4 in the refrigerator compartment supply mode, In the supply mode, the refrigerant may not be supplied to the refrigerator compartment evaporator 4 while the refrigerant is supplied to the freezer compartment evaporator 5.

냉장고는 압축기(1)와, 전환밸브(7)와, 냉장실팬(8)와, 냉동실팬(9) 및 응축팬(21)을 제어하는 제어부(200)을 더 포함할 수 있다. The refrigerator may further include a control unit 200 for controlling the compressor 1, the switching valve 7, the refrigerating chamber fan 8, the freezing chamber fan 9, and the condensation fan 21.

냉장고는 냉장실(R)의 목표온도와, 냉동실(F)의 목표온도와, 냉장실운전과 냉동실운전의 우선순위에 따라 전환밸브(7), 냉장실팬(8) 및 냉동실팬(9)을 제어할 수 있다. The refrigerator controls the switching valve (7), the refrigerator compartment fan (8) and the freezer compartment (9) according to the target temperature of the refrigerator compartment (R), the target temperature of the freezer compartment (F), and the priority of the refrigerator compartment operation and the freezer compartment operation. Can be.

냉장고는 냉장실(R)의 목표온도에 따라 냉장실운전이 결정될 수 있고, 냉동실(F)의 목표온도에 따라 냉동실운전이 결정될 수 있다. In the refrigerator, a refrigerator compartment operation may be determined according to a target temperature of the refrigerator compartment R, and a freezer compartment operation may be determined according to the target temperature of the freezer compartment F.

냉장고는 냉장실운전시, 압축기(1)가 구동되고, 전환밸브(7)가 냉장실공급모드로 제어되며, 냉장실팬(8)이 구동될 수 있다. 그리고, 냉장고는 냉동실운전시, 압축기(1)가 구동되고, 전환밸브(7)가 냉동실공급모드로 제어되며, 냉동실팬(9)이 구동될 수 있다.When the refrigerator operates in the refrigerator compartment, the compressor 1 is driven, the switching valve 7 is controlled in the refrigerator compartment supply mode, and the refrigerator compartment fan 8 may be driven. In the freezer operation, the compressor 1 is driven, the switching valve 7 is controlled in the freezer supply mode, and the freezer compartment 9 is driven.

냉장고는 냉장실(R)의 온도를 감지하는 냉장실온도센서(202)와, 냉동실(F)의 온도를 감지하는 냉동실온도센서(204)를 포함할 수 있다. The refrigerator may include a refrigerating compartment temperature sensor 202 for detecting a temperature of the refrigerating compartment R, and a freezing compartment temperature sensor 204 for detecting a temperature of the freezing compartment F.

냉장고는 냉장실온도센서(202)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 a refrigerator compartment temperature) sensed by the refrigerator compartment temperature sensor 202 rises to an upper limit temperature 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, 2℃) 높게 설정된 온도일 수 있고, 냉장실 목표온도의 하한온도는 냉장실 목표온도 보다 소정온도(예를 들면, 2℃) 낮게 설정된 온도일 수 있으며, 냉장실 목표온도가 6℃일 경우, 냉장고는 냉장실온도가 8℃로 상승되면, 냉장실운전을 개시할 수 있고, 냉장실온도가 4℃로 하강되면, 냉장실운전을 종료할 수 있다. The upper limit temperature of the refrigerating chamber target temperature may be a temperature set to a predetermined temperature (for example, 2 ° 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, 2 ° C.). When the refrigerator compartment target temperature is 6 ° C., the refrigerator may start the refrigerator compartment operation when the refrigerator compartment temperature rises to 8 ° C., and may end the refrigerator compartment operation when the refrigerator compartment temperature decreases to 4 ° C. .

냉장고는 냉동실온도센서(204)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 204 rises to an upper limit temperature of the target of the freezer compartment, and the freezer compartment temperature is the freezer compartment target temperature. 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 냉장실운전과 냉동실운전이 선택적으로 실시될 수 있고, 냉장고가 냉장실운전이 개시될 조건이면서, 냉동실운전이 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 refrigerator compartment operation and a freezer compartment operation. If the refrigerator is a condition in which a refrigerator compartment operation is to be started and a freezer operation is to be started, any operation according to a predetermined priority (for example, a refrigerator compartment operation) This is carried out first, and when the first operation is completed, another operation (for example, freezer operation) may be performed.

냉장고는 냉장실운전의 도중에 냉장실온도가 냉장실운전의 종료조건(예를 들면, 냉장실온도가 냉장실 목표온도의 하한온도로 하강)되고, 냉동실온도가 냉동실운전의 개시조건(예를 들면, 냉동실온도가 냉동실 목표온도의 상한온도 이상)이면, 냉장실운전에서 냉동실운전으로 전환되는 것이 가능하다. In the refrigerator, the refrigerator compartment temperature is the end condition of the refrigerator compartment operation (for example, the refrigerator compartment temperature falls to the lower limit temperature of the refrigerator compartment target temperature) during the refrigerator compartment operation, and the freezer compartment temperature is the start condition of the freezer compartment operation (eg, the freezer compartment temperature is the freezer compartment). More than the upper limit temperature of the target temperature, it is possible to switch from the refrigerator compartment operation to the freezer compartment operation.

냉장고는 냉동실운전의 도중에 냉동실온도가 냉동실운전의 종료조건((예를 들면, 냉동실온도가 냉동실 목표온도의 하한온도로 하강)이고, 냉장실온도가 냉장실운전의 개시조건(예를 들면, 냉장실온도가 냉장실 목표온도의 상한온도 이상)이면, 냉동실운전에서 냉장실운전으로 전환되는 것이 가능하다.In the refrigerator, the freezer temperature is the end condition of the freezer operation (for example, the freezer temperature is lowered to the lower limit temperature of the freezer target temperature) during the freezer operation, and the freezer temperature is the start condition of the refrigerator operation (for example, the freezer temperature is Or higher than the upper limit temperature of the refrigerating chamber target temperature, it is possible to switch from the freezer operation to the refrigerating chamber operation.

이하, 제어부(100)에 의한 냉장실운전과 냉동실운전에 대해 설명하면 다음과 같다. Hereinafter, the refrigerator compartment operation and the freezer operation by the control unit 100 will be described.

제어부(100)는 냉장실온도센서(202)에서 감지된 온도가 냉장실 목표온도의 상한온도 이상이면, 냉장실운전을 실시할 수 있고, 냉장실운전시 압축기(1)를 구동할 수 있고, 전환밸브(7)를 냉장실공급모드로 제어할 수 있고, 냉장실팬(8)을 구동할 수 있다. If the temperature detected by the refrigerating compartment temperature sensor 202 is equal to or higher than an upper limit temperature of the refrigerating compartment target temperature, the controller 100 may perform a refrigerating compartment operation, may drive the compressor 1 during the refrigerating compartment operation, and the switching valve 7 ) Can be controlled in the refrigerator compartment supply mode, and the refrigerator compartment fan 8 can be driven.

압축기(1)에서 압축된 냉매는 응축기(2)와, 전환밸브(7)과, 냉장실 팽창기구(3A)를 순차적으로 통과한 후 냉장실증발기(4)를 통과하고, 냉장실증발기(4)를 통과한 후 압축기(1)로 흡입될 수 있다. 그리고, 상기와 같은 냉매의 순환시 냉장실팬(8)은 냉장실(R)의 냉기를 냉장실증발기(4)와 냉장실(R)로 순환시킬 수 있고, 냉장실(R)은 냉장실증발기(4)에 의해 냉각된 냉기에 의해 점차 냉각될 수 있다. The refrigerant compressed by the compressor (1) passes sequentially through the condenser (2), the switching valve (7), and the refrigerating chamber expansion mechanism (3A), and then passes through the refrigerating chamber evaporator (4), and passes through the refrigerating chamber evaporator (4). It can then be sucked into the compressor (1). When the refrigerant is circulated, the refrigerating chamber fan 8 may circulate the cold air in the refrigerating chamber R to the refrigerating chamber evaporator 4 and the refrigerating chamber R, and the refrigerating chamber R is stored by the refrigerating chamber evaporator 4. It can be gradually cooled by cooled cold air.

제어부(100)는 냉장실온도센서(202)에서 감지된 온도가 냉장실 목표온도의 하한온도 이하이면, 냉장실운전을 종료할 수 있다. If the temperature detected by the refrigerating compartment temperature sensor 202 is lower than or equal to the lower limit temperature of the refrigerating compartment target temperature, the controller 100 may end the refrigerating compartment operation.

제어부(100)는 상기와 같은 냉장실운전의 종료시, 냉동실온도(204)에서 감지된 온도가 냉동실 목표온도의 상한온도 이상이면, 냉동실운전을 실시할 수 있고, 냉동실운전시, 전환밸브(7)를 냉동실공급모드로 제어할 수 있고, 냉동실팬(9)을 구동할 수 있다.At the end of the refrigerating compartment operation as described above, the control unit 100 may perform a freezer compartment operation when the temperature detected at the freezer compartment temperature 204 is equal to or higher than an upper limit temperature of the target temperature of the freezer compartment. The freezer compartment supply mode can be controlled, and the freezer compartment fan 9 can be driven.

압축기(1)에서 압축된 냉매는 응축기(2)와, 전환밸브(7)과, 냉동실 팽창기구(3B)를 순차적으로 통과한 후 냉동실증발기(5)를 통과하고, 냉동실증발기(5)를 통과한 후 압축기(1)로 흡입될 수 있다. 그리고, 상기와 같은 냉매의 순환시 냉동실팬(9)은 냉동실(F)의 냉기를 냉동실증발기(5)와 냉동실(R)로 순환시킬 수 있고, 냉동실(F)은 냉동실증발기(5)에 의해 냉각된 냉기에 의해 점차 냉각될 수 있다. The refrigerant compressed by the compressor (1) passes through the condenser (2), the switching valve (7), and the freezer compartment expansion mechanism (3B) sequentially, and then passes through the freezer compartment evaporator (5), and passes through the freezer compartment evaporator (5). It can then be sucked into the compressor (1). In addition, the freezing chamber fan 9 may circulate the cold air of the freezing chamber F to the freezing chamber evaporator 5 and the freezing chamber R when the refrigerant is circulated, and the freezing chamber F is freeze chamber evaporator 5. It can be gradually cooled by cooled cold air.

상기와 같이, 냉장실운전이 종료된 후 냉동실운전이 개시되면, 즉, 냉장실운전의 도중에 냉동실운전으로 전환되면, 제어부(100)는 전환밸브(7)를 냉장실공급모드에서 냉동실공급모드로 전환할 수 있고 냉장실팬(8)을 구동할 수 있다. As described above, when the freezer operation is started after the refrigerating compartment operation is completed, that is, when the freezer operation is switched in the middle of the refrigerating compartment operation, the control unit 100 may switch the switching valve 7 from the refrigerating compartment supply mode to the freezer compartment supply mode. And the refrigerating compartment fan 8 can be driven.

냉동실운전시, 전환밸브(7)는 냉장실증발기(4)로 냉매가 공급되지 않게 막고, 냉장실팬(8)은 냉매가 유입되지 않는 냉장실증발기(4)로 냉장실(R)의 냉기를 송풍할 수 있다. 냉장실운전의 종료 이후에 실시되는 냉동실운전의 도중에, 냉장실팬(8)이 구동되면, 냉장실(R)은 냉장실증발기(4)에 의해 추가로 냉각될 수 있고, 냉장고가 냉동실운전인 도중에, 냉장실(R)의 온도 상승은 제한될 수 있다. During operation of the freezer compartment, the switching valve 7 prevents the refrigerant from being supplied to the refrigerator compartment evaporator 4, and the refrigerator compartment fan 8 blows the cold air of the refrigerator compartment R into the refrigerator compartment evaporator 4 into which the refrigerant does not flow. have. If the refrigerator compartment fan 8 is driven during the freezer compartment operation performed after the end of the refrigerator compartment operation, the refrigerator compartment R can be further cooled by the refrigerator compartment evaporator 4, and while the refrigerator is the freezer compartment, the refrigerator compartment ( The rise in temperature of R) can be limited.

한편, 상기와 같은 냉동실운전시, 냉장실팬(8)이 구동되면, 냉장실증발기(4)에 잔류하던 냉매는 계속 증발되면서 압축기(1)로 흡입될 수 있고, 냉장실증발기(4)의 잔류 냉매는 점차 감소될 수 있다. On the other hand, when the refrigerating chamber fan 8 is driven during the operation of the freezer compartment as described above, the refrigerant remaining in the refrigerator compartment evaporator 4 may be sucked into the compressor 1 while continuously evaporating, and the remaining refrigerant of the refrigerator compartment evaporator 4 may be Can be reduced gradually.

냉장실팬(8)이 구동되는 시간이 경과됨에 따라, 냉장실증발기(4)의 온도는 점차 상승되고, 냉장실증발기(4)의 온도는 기설정된 설정온도에 도달될 수 있다.As the time when the refrigerator compartment fan 8 is driven, the temperature of the refrigerator compartment evaporator 4 gradually increases, and the temperature of the refrigerator compartment evaporator 4 may reach a preset set temperature.

제어부(100)는 냉장실운전 이후에 실시되는 냉동실운전시 냉장실팬(6)이 구동되는 도중에, 냉장실증발기 온도센서(6)에서 감지된 온도가 설정온도에 도달되면, 냉장실팬(8)을 정지할 수 있다. The control unit 100 stops the refrigerator compartment fan 8 when the temperature detected by the refrigerator compartment evaporator temperature sensor 6 reaches the set temperature during the operation of the refrigerator compartment fan 6 during the freezer compartment operation performed after the refrigerator compartment operation. Can be.

여기서, 설정온도는 냉동실운전시 구동중인 냉장실팬(8)의 정지 여부를 판단할 수 있는 온도로서, 너무 낮게 설정될 경우, 냉동실운전 도중에 냉장실팬(8)이 구동되는 시간이 짧을 수 있다.Here, the set temperature is a temperature for determining whether the refrigerating compartment fan 8 is stopped during the freezer compartment operation. When the temperature is set too low, the refrigerating compartment fan 8 may be shortened during the freezer compartment operation.

설정온도는 영하의 온도가 설정되는 것이 바람직하고, 냉장실을 최대한 냉각 유지시킬 수 있으면서, 냉장실팬(8)의 소비전력을 최소화할 수 있는 온도가 설정되는 것이 바람직하다. It is preferable that the set temperature is set at a temperature below zero, and it is preferable that a temperature that can minimize the power consumption of the refrigerating chamber fan 8 can be set while keeping the refrigerating chamber as cool as possible.

설정온도가 영상의 온도일 경우, 냉장실(R) 추가 냉각의 효과가 미미한 반면에, 설정온도가 -5℃ 이하의 너무 낮은 온도일 경우, 냉장실증발기(4)가 저압이고, 냉장실증발기(4) 냉매의 회수 속도가 늦을 수 잇다. When the set temperature is the temperature of the image, the effect of the additional cooling of the refrigerating chamber (R) is insignificant, whereas when the set temperature is too low below -5 ° C, the refrigerating chamber evaporator (4) is low pressure and the refrigerating chamber evaporator (4). The recovery rate of the refrigerant may be slow.

설정온도는 영하의 온도이면서 가급적 높게 설정되는 것이 바람직하고, 0℃에 근접한 영하의 온도가 설정되는 것이 바람직하다. 설정온도는 -2℃ 내지 0℃ 범위 내에서 설정되는 것이 바람직할 수 있고, 일예로, -1℃로 설정될 수 있다. It is preferable that the set temperature is set as high as possible while it is below zero temperature, and it is preferable that the below zero temperature set to 0 ° C is set. The set temperature may be preferably set within the range of −2 ° C. to 0 ° C., and may be set to −1 ° C., for example.

이 경우, 제어부(100)는 냉장실증발기 온도센서(6)에서 감지된 온도가 -2℃ 내지 0℃ 범위 내에서 설정된 설정온도(예를 들면, -1℃)로 상승되면, 냉장실팬(8)을 정지할 수 있다. In this case, the control unit 100 when the temperature detected by the refrigerator compartment evaporator temperature sensor 6 rises to a set temperature (eg, −1 ° C.) set within a range of −2 ° C. to 0 ° C., and the refrigerator compartment fan 8. Can be stopped.

냉동실운전은, 냉장실팬(8)이 정지된 이후에도 계속될 수 있고, 제어부(100)는 냉동실온도센서(204)에서 감지된 온도가 냉동실 목표온도의 하한온도 이하이면, 냉동실운전을 종료할 수 있고, 냉동실운전의 종료시 압축기(1)를 정지할 수 있고, 냉동실팬(9)을 정지할 수 있다. The freezer operation may be continued even after the refrigerating compartment fan 8 is stopped, and the control unit 100 may terminate the freezer operation if the temperature detected by the freezer compartment temperature sensor 204 is lower than or equal to the lower limit temperature of the freezer target temperature. At the end of the freezer compartment operation, the compressor 1 can be stopped and the freezer compartment fan 9 can be stopped.

도 4는 본 발명의 실시 예에 따른 냉장고의 제어 방법이 도시된 순서도이다.4 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention.

본 실시예의 냉장고의 운전 방법은 전환밸브(7)에 의해 냉매를 냉장실 증발기(4)나 냉동실 증발기(5)로 공급하는 냉장고의 운전방법에 적용될 수 있고, 냉장실운전시, 전환밸브(7)가 냉장실공급모드로 제어되고, 냉장실팬(8)이 구동되는 단계(즉, 냉장실운전 단계)를 포함할 수 있다.(S1)(S2)The operation method of the refrigerator of the present embodiment can be applied to the operation method of the refrigerator supplying the refrigerant to the refrigerating chamber evaporator 4 or the freezing chamber evaporator 5 by the switching valve 7, and, when the refrigerating chamber operation, the switching valve 7 is It may be controlled in the refrigerating compartment supply mode, and may include a step of driving the refrigerating compartment fan 8 (ie, a refrigerating compartment operation step). (S1) (S2)

본 실시예의 냉장고의 운전 방법은 냉장실운전의 도중에 냉동실운전으로 전환되면 전환밸브(7)가 냉동실공급모드로 전환되고 냉장실팬(8) 및 냉동실팬(9)이 구동되는 단계(즉, 냉동실운전 및 냉장실추가냉각 단계)를 실시할 수 있다.(S3)(S4)In the operation method of the refrigerator according to the present embodiment, when the switching valve 7 is switched to the freezer operation during the operation of the refrigerating compartment, the switching valve 7 is switched to the freezer supply mode, and the refrigerating compartment fan 8 and the freezer compartment fan 9 are driven (that is, the freezer operation and Refrigeration chamber addition cooling step) can be carried out. (S3) (S4)

상기와 같은 냉장실운전의 도중에 냉동실운전으로 전환되면, 전환밸브(7)는 냉매가 냉장실증발기(4)로 유입되지 않게 차단하고, 냉매가 냉동실증발기(5)로 공급되게 안내할 수 있다. When switching to the freezer operation during the refrigerating chamber operation as described above, the switching valve 7 may block the refrigerant from entering the refrigerator compartment evaporator 4, and guide the refrigerant to be supplied to the freezer compartment evaporator 5.

냉장실팬(8)은 냉장실(R)의 냉기를 냉장실증발기(4)와 냉장실(R)로 순환할 수 있고, 냉장실(R)은 냉동실운전의 도중에 냉장실증발기(4)에 의해 추가 냉각될 수 있으며, 냉장실증발기(4) 내의 잔류 냉매는 냉장실(R)에서 송풍된 공기와 열교환되어 서서히 기화되면서 압축기(1)로 흡입될 수 있다. The refrigerator compartment fan 8 may circulate the cold air of the refrigerator compartment R to the refrigerator compartment evaporator 4 and the refrigerator compartment R, and the refrigerator compartment R may be further cooled by the refrigerator compartment evaporator 4 during the freezer operation. In addition, the residual refrigerant in the refrigerator compartment evaporator 4 may be sucked into the compressor 1 while being gradually evaporated by heat exchange with the air blown from the refrigerator compartment R.

상기와 같이 냉동실운전의 도중에, 냉장실팬(8)이 구동됨에 따라, 냉장실증발기(4)의 온도는 점차 승온될 수 있다. 냉장실증발기 온도센서(6)에서 감지된 온도가 설정온도에 도달될 수 있다. As described above, as the refrigerating chamber fan 8 is driven, the temperature of the refrigerating chamber evaporator 4 may be gradually raised. The temperature detected by the refrigerator evaporator temperature sensor 6 may reach a set temperature.

본 실시예의 냉장고의 운전 방법은 냉동실운전의 도중에 냉장실증발기 온도센서(6)에서 감지된 온도(즉, 냉장실 증발기 온도)가 설정온도에 도달되면, 냉장실팬(8)이 정지되는 단계를 실시할 수 있다.(S5)(S6)In the operation method of the refrigerator of the present embodiment, when the temperature detected by the refrigerator compartment evaporator temperature sensor 6 (that is, the refrigerator compartment evaporator temperature) reaches the set temperature during the freezer compartment operation, the refrigerator compartment fan 8 may be stopped. (S5) (S6)

설정온도는 -2℃ 내지 0℃ 범위 내에서 설정될 수 있고, 일예로, -1℃로 설정될 수 있다.The set temperature may be set within a range of −2 ° C. to 0 ° C., and may be set to −1 ° C., for example.

도 5는 본 발명의 실시 예의 비교예가 냉장실운전에서 냉동실운전으로 전환되는 도중일 때의 온도변화가 도시된 도이고, 도 6은 본 발명의 실시 예의 냉장고가 냉장실운전에서 냉동실운전으로 전환되는 도중일 때의 온도변화가 도시된 도이다.5 is a view illustrating a temperature change when a comparative example of an embodiment of the present invention is in the process of switching from a freezer operation to a freezer operation, and FIG. 6 is a way in which a refrigerator of an embodiment of the present invention is switched from a freezer operation to a freezer operation. The temperature change at that time is shown.

본 실시예의 비교예는, 냉장실운전(R운전)에서 냉동실운전(F운전)으로 전환되면 냉장실팬(8)이 구동되되, 냉장실팬(8)은 냉동실운전으로 전환된 후 설정시간(예를 들어, 180초)가 경과되면, 정지되는 예일 수 있다. In the comparative example of the present embodiment, when the refrigerator compartment operation (F operation) is switched to the freezer compartment operation (F operation), the refrigerating compartment fan 8 is driven, and the refrigerating compartment fan 8 is switched to the freezer operation, and then set time (for example, , 180 seconds) may be stopped.

도 5는 본 발명의 실시예와 냉력, 팬 풍속 등의 기타 조건이 모두 동일하게 설정되고, 냉장실팬(8)의 정지시기만 본 실시예와 상이한 경우일 때, 냉장실증발기 입구온도(R Eva IN)와, 냉장실증발기 출구온도(R Eva OUT)와, 냉장실온도(TR)의 변화가 도시된 도이다. 5 is the same as the embodiment of the present invention and all other conditions such as cold power, fan wind speed, and the like, when only the stop time of the refrigerator compartment fan 8 is different from the present embodiment, the refrigerator compartment evaporator inlet temperature (R Eva IN ), The refrigerator compartment evaporator outlet temperature (R Eva OUT), and the refrigerator compartment temperature (TR).

비교예는 도 5에 도시된 바와 같이, 냉장실운전(R운전)에서 냉동실운전(F운전)으로 전환된 후, 설정시간(예를 들면, 180초) 경과된 시점에, 냉장실팬(8)이 정지된 경우이고, 냉장실팬(8)이 정지된 시점(즉, 냉장실운전에서 냉동실운전으로 전환된 후, 설정시간이 경과된 시점)부터는 냉장실온도(TR)가 상승되기 시작할 수 있고, 이때의 냉장실증발기(4)의 온도는 대략 -5.2℃일 수 있다. In the comparative example, as shown in FIG. 5, when the set time (for example, 180 seconds) has elapsed after the switch from the refrigerator operation (R operation) to the freezer operation (F operation), the refrigerator compartment fan 8 When the refrigerator compartment fan 8 is stopped (that is, when the set time has elapsed after switching from the refrigerator compartment operation to the freezer operation), the refrigerator compartment temperature TR may start to rise, and the refrigerator compartment at this time The temperature of the evaporator 4 may be approximately -5.2 ° C.

반면에, 도 6은 냉장실운전(R운전)에서 냉동실운전(F운전)으로 전환된 후, 냉장실증발기 온도센서(6)에서 감지된 온도가 설정온도(예를 들면, -1℃)일 때, 냉장실팬(8)이 정지된 일 때, 냉장실증발기 입구온도(R Eva IN)와, 냉장실증발기 출구온도(R Eva OUT)와, 냉장실온도(TR)의 변화가 도시된 도이다. On the other hand, Figure 6 shows that when the temperature detected by the refrigerator compartment evaporator temperature sensor 6 after the switch from the refrigerator compartment operation (R operation) to the freezer operation (F operation), the set temperature (for example, -1 ℃), When the refrigerator compartment fan 8 is stopped, the change of the refrigerator compartment evaporator inlet temperature R Eva IN, the refrigerator compartment evaporator outlet temperature R Eva OUT, and the refrigerator compartment temperature TR is shown.

본 실시예는 도 6에 도시된 바와 같이, 냉장실운전(R운전)에서 냉동실운전(F운전)으로 전환된 시점부터 대략 390초 경과된 시점에 냉장실팬(8)이 정지될 수 있고, 이 경우, 냉장실증발기(4)는 냉동실운전(F운전)의 개시 시점부터 냉장실증발기 온도센서(6)에서 감지된 온도가 설정온도(예를 들면, -1℃)에 도달될 때까지, 냉장실(R)을 계속 냉각할 수 있고, 냉동실운전(F운전)의 도중에, 냉장실온도가 상승되는 것을 최대한 지연시킬 수 있다.In the present embodiment, as shown in FIG. 6, the refrigerator compartment fan 8 may be stopped at approximately 390 seconds from the point of time of switching from the refrigerator compartment operation (R operation) to the freezer operation (F operation). The refrigerator compartment evaporator 4 stores the refrigerator compartment R until the temperature detected by the refrigerator compartment evaporator temperature sensor 6 reaches a set temperature (for example, -1 ° C.) from the start of the freezer compartment operation (F operation). Can continue to be cooled, and the refrigerating chamber temperature can be delayed as much as possible during the freezer operation (F operation).

한편, 본 실시예는 냉장실팬(8)이 정지될 시점에, 냉장실증발기(4)의 온도(-1℃)와 냉동실증발기(5)의 온도의 차가 크고, 비교예의 경우 보다 냉장실증발기(4)의 냉매를 보다 신속하게 회수할 수 있다. On the other hand, in this embodiment, when the refrigerator compartment fan 8 is stopped, the difference between the temperature of the refrigerator compartment evaporator 4 (-1 ° C.) and the temperature of the freezer compartment evaporator 5 is large, and in the case of the comparative example, the refrigerator compartment evaporator 4 is larger. The refrigerant can be recovered more quickly.

도 7은 본 발명의 실시 예의 비교예가 냉동실운전일 때의 온도변화가 도시된 도이고, 도 8은 본 발명의 실시 예의 냉장고가 냉동실운전일 때의 온도변화가 도시된 도이다. 7 is a view showing a temperature change when the comparative example of the embodiment of the present invention when the freezer operation, Figure 8 is a view showing a temperature change when the refrigerator of the embodiment of the present invention freezer operation.

도 7은 냉장고가 냉장실운전에서 냉동실운전으로 전환된 후, 180초 경과된 이점에 냉장실팬(8)을 정지한 이후의, 냉동실증발기 입구온도(F Eva IN)과, 냉동실증발기 입구온도(F Eva OUT)의 변화가 도시된 도이다. 7 shows the freezer compartment evaporator inlet temperature (F Eva IN) and the freezer compartment evaporator inlet temperature (F Eva) after the refrigerator has been switched from the refrigerator compartment operation to the freezer operation, and after stopping the refrigerator compartment fan 8 at an advantage of 180 seconds. Is a diagram showing a change of OUT).

그리고, 도 8은 냉장실운전에서 냉동실운전으로 전환된 후, 냉장실증발기 온도센서(6)에서 감지된 온도가 설정온도(예를 들면, -1℃)일 때, 냉장실팬(8)이 정지된 이후의 냉동실증발기 입구온도(F Eva IN)과, 냉동실증발기 입구온도(F Eva OUT)의 변화가 도시된 도이다.8 shows that after the refrigerating chamber operation is switched from the refrigerating chamber operation to the freezing chamber operation, when the temperature detected by the refrigerating chamber evaporator temperature sensor 6 is a set temperature (for example, −1 ° C.), Figure 2 shows the changes in the freezer compartment evaporator inlet temperature (F Eva IN) and the freezer compartment evaporator inlet temperature (F Eva OUT).

비교예의 경우에는 냉장실운전에서 냉동실운전으로 전환된 후, 설정시간(180초) 경과된 시점에 측정된 냉동실증발기 입구온도(F Eva IN)과, 냉동실증발기 입구온도(F Eva OUT)의 차는 도 7을 참조하면, 0.8℃일 수 있다.In the comparative example, the difference between the freezer evaporator inlet temperature (F Eva IN) and the freezer evaporator inlet temperature (F Eva OUT) measured at the time when the set time (180 seconds) has elapsed after the switch from the freezer operation to the freezer operation is shown in FIG. 7. Referring to, it may be 0.8 ℃.

본 실시예의 경우에는 냉장실운전에서 냉동실운전으로 전환된 후, 냉장실증발기 온도센서(6)에서 감지된 온도가 설정온도(예를 들면, -1℃)에 도달된 시점(예를 들면, 냉장실운전에서 냉동실운전으로 전환된 후, 390초 경과된 시점)에 측정된 냉동실증발기 입구온도(F Eva IN)과, 냉동실증발기 입구온도(F Eva OUT)의 차는 도 8을 참조하면, 0.4℃일 수 있다.In the present embodiment, after switching from the refrigerator operation to the freezer operation, the point of time when the temperature detected by the refrigerator evaporator temperature sensor 6 reaches a set temperature (for example, -1 ° C) (for example, in the refrigerator operation) After switching to the freezer operation, the difference between the freezer evaporator inlet temperature F Eva IN and the freezer evaporator inlet temperature F Eva OUT measured at 390 seconds elapses may be 0.4 ° C.

본 실시예는 냉장실팬(8)의 정지 시점에 측정된 냉동실증발기 입구온도(F Eva IN)과, 냉동실증발기 입구온도(F Eva OUT)의 차(예를 들면, 0.4℃)는 비교예의 경우(예를 들면, 0.8℃) 보다 작고, 이러한 결과는 본 실시예의 경우, 냉장실증발기(4)의 냉매가 비교예 보다 빠르게 회수되었기 때문이다.In this embodiment, the difference between the freezer evaporator inlet temperature (F Eva IN) and the freezer evaporator inlet temperature (F Eva OUT) measured at the time of stopping the refrigerating compartment fan 8 (for example, 0.4 ° C) is the case of the comparative example ( For example, it is smaller than 0.8 DEG C, and this result is because, in the present embodiment, the refrigerant of the refrigerator compartment evaporator 4 is recovered faster than the comparative example.

즉, 본 실시예는 설정시간을 기준으로 냉장실팬(8)을 정지시키는 비교예의 경우 보다 냉장실증발기(4)의 냉매를 신속하게 회수할 수 있고, 보다 효율적인 운전이 가능하다.That is, the present embodiment can recover the refrigerant in the refrigerator compartment evaporator 4 more quickly than in the comparative example of stopping the refrigerator compartment fan 8 on the basis of the set time, and can operate more efficiently.

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 variations 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: 냉장실증발기 5: 냉동실증발기
6: 냉장실증발기 온도센서 7: 전환밸브
8: 냉장실팬 9: 냉동실팬
100: 제어부4: refrigerator evaporator 5: freezer evaporator
6: refrigerator evaporator temperature sensor 7: switching valve
8: Refrigerator Fan 9: Freezer Fan
100: control unit

Claims (4)

냉장실증발기 및 냉동실증발기와;
냉매를 상기 냉장실증발기로 공급하는 냉장실공급모드로 제어되거나 냉매를 상기 냉동실증발기로 공급하는 냉동실공급모드로 제어되는 전환밸브와;
냉장실의 냉기를 냉장실증발기와 냉장실로 순환하는 냉장실팬과;
냉동실의 냉기를 냉동실증발기와 냉동실로 순환하는 냉동실팬과;
상기 냉장실증발기의 온도를 감지하는 냉장실증발기 온도센서와;
상기 전환밸브와 냉동실팬 및 냉장실팬을 제어하는 제어부를 포함하고,
상기 제어부는
냉장실운전시 전환밸브를 냉장실공급모드로 제어하고 냉장실팬을 구동하고,
상기 냉장실운전의 도중에 냉동실운전으로 전환되면 상기 전환밸브를 냉장실공급모드에서 냉동실공급모드로 전환하고 상기 냉동실팬을 구동하며 냉장실팬을 추가 구동하며,
상기 냉동실운전의 도중에 상기 냉장실증발기 온도센서에서 감지된 온도가 설정온도에 도달되면 상기 냉장실팬을 정지하는 냉장고. A refrigerator compartment evaporator and a freezer compartment evaporator;
A switching valve controlled in a refrigerating chamber supply mode for supplying a refrigerant to the refrigerating chamber evaporator or in a freezing chamber supply mode for supplying a refrigerant to the freezing chamber evaporator;
A refrigerator compartment fan circulating cold air of the refrigerator compartment into a refrigerator compartment evaporator and a refrigerator compartment;
A freezer compartment circulating cold air in the freezer compartment to the freezer compartment evaporator and the freezer compartment;
A refrigerator compartment evaporator temperature sensor detecting a temperature of the refrigerator compartment evaporator;
It includes a control unit for controlling the switching valve, the freezer compartment fan and the refrigerator compartment fan,
The control unit
When operating the refrigerator compartment, control the switching valve to the refrigerator compartment supply mode, drive the refrigerator compartment fan,
When switching to freezer operation during the refrigerating chamber operation, the switching valve is switched from the refrigerating chamber supply mode to the freezing chamber supply mode, driving the freezer compartment fan and additionally driving the refrigerating compartment fan,
And refrigerating of the refrigerator compartment fan when the temperature detected by the refrigerator compartment evaporator temperature sensor reaches a preset temperature during the operation of the freezer compartment. 제 1 항에 있어서,
상기 제어부는 상기 냉장실증발기 온도센서에서 감지된 온도가 -2℃ 내지 0℃ 범위 내에서 설정된 설정온도로 상승되면, 상기 냉장실팬을 정지하는 냉장고.The method of claim 1,
The control unit stops the refrigerator compartment fan when the temperature detected by the refrigerator compartment evaporator temperature sensor is raised to a set temperature set within the range of -2 ℃ to 0 ℃. 전환밸브에 의해 냉매를 냉장실증발기나 냉동실증발기로 공급하는 냉장고의 운전방법에 있어서,
냉장실운전시 전환밸브가 냉장실공급모드이고 냉장실팬이 구동되는 단계와;
상기 냉장실운전의 도중에 냉동실운전으로 전환되면 상기 전환밸브가 냉장실공급모드에서 냉동실공급모드로 전환되고 냉동실팬이 구동되며 상기 냉장실팬이 추가 구동되는 단계와;
상기 냉동실운전의 도중에 냉장실증발기 온도센서에서 감지된 온도가 설정온도에 도달되면 상기 냉장실팬이 정지되는 단계를 포함하는 냉장고. In a method of operating a refrigerator in which a refrigerant is supplied to a refrigerator compartment evaporator or a freezer compartment evaporator by a switching valve,
A switch valve is in a refrigerator compartment supply mode and a refrigerator compartment fan is driven during the refrigerator compartment operation;
Switching to a freezer compartment operation mode from a refrigerator compartment supply mode to a freezer compartment supply mode when the switching valve is switched to a freezer compartment operation during the refrigerating compartment operation;
And refrigerating of the refrigerator compartment fan when the temperature detected by the refrigerator compartment evaporator temperature sensor reaches a preset temperature during the operation of the freezer compartment. 제 3 항에 있어서,
상기 설정온도는 -2℃ 내지 0℃ 범위 내에서 설정된 냉장고의 운전 방법. The method of claim 3, wherein
The set temperature is a refrigerator operating method set within the range of -2 ℃ to 0 ℃.
KR1020180015248A 2018-02-07 2018-02-07 Refrigerator and Control method of the same KR20190095804A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113048717A (en) * 2019-12-28 2021-06-29 青岛海尔电冰箱有限公司 Refrigeration control method and refrigerator
US20220042739A1 (en) * 2019-02-28 2022-02-10 Lg Electronics Inc. Refrigerator control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150070907A (en) 2013-12-17 2015-06-25 엘지전자 주식회사 Refrigerator and colntrol method for refrigerator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150070907A (en) 2013-12-17 2015-06-25 엘지전자 주식회사 Refrigerator and colntrol method for refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220042739A1 (en) * 2019-02-28 2022-02-10 Lg Electronics Inc. Refrigerator control method
CN113048717A (en) * 2019-12-28 2021-06-29 青岛海尔电冰箱有限公司 Refrigeration control method and refrigerator

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