KR0160435B1 - Refrigerator having high efficient cooling cycle and control method thereof - Google Patents
Refrigerator having high efficient cooling cycle and control method thereof Download PDFInfo
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- KR0160435B1 KR0160435B1 KR1019960003174A KR19960003174A KR0160435B1 KR 0160435 B1 KR0160435 B1 KR 0160435B1 KR 1019960003174 A KR1019960003174 A KR 1019960003174A KR 19960003174 A KR19960003174 A KR 19960003174A KR 0160435 B1 KR0160435 B1 KR 0160435B1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/30—Cold cathodes, e.g. field-emissive cathode
- H01J1/304—Field-emissive cathodes
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
본 발명의 목적은, 냉장실과 냉동실을 독립적으로 제어하되 먼저 냉장실을 냉각하고 나중에 냉동실을 냉각하여 에너지 효율을 높이기 위한 것이다.An object of the present invention is to independently control the refrigerator compartment and the freezer compartment, but first to cool the refrigerator compartment and later to freeze the freezer compartment to increase energy efficiency.
압축기, 상호구획된 냉동실과 냉장실을 구비하며, 상기 냉장실에 제1냉각기와 냉장실팬이 설치되고, 상기 냉동실에 제2냉각기와 냉동실팬이 설치된 냉장고의 제어방법에 있어서, 냉동실의 온도와 식품의 냉동 보관을 위한 적절한 온도로 미리 정해진 냉동실 설정온도를 비교하고(단계 261), 상기 단계에서 냉동실온도가 냉동실설정온도보다 높은 경우에 냉장실의 온도와 식품의 냉장보관을 위한 적절한 온도로 미리 정해진 냉장실설정온도를 비교하고(단계262), 상기 단계에서 냉장실의 온도가 냉장실 설정온도보다 높은 경우에 상기 압축기와 냉장실팬은 온시키고 냉동실팬은 오프시키며(단계273), 냉장실 온도가 냉장실설정온도 이하인 경우에 상기 압축기와 냉동실팬은 온시키고 냉장실팬은 오프시키며(단계274), 상기 압축기와 냉동실팬은 온시키고, 냉동실팬은 오프시키고 단계(263), 단계263에 이어서 상기 냉장실온도와 냉장실설정온도를 비교하는 단계(262)로 되돌아가고, 상기 냉장실온도와 냉장실설정온도를 비교하는 단계(262)에서 냉장실온도가 냉장실 설정온도보다 높은 경우에는 계속해서 압축기와 냉장실팬은 온시키고 냉동실팬을 오프시키고, 냉장실온도가 냉장실설정온도 이하인 경우에 압축기와 냉동실팬을 온시키고 냉장실팬을 오프시키는(단계264) 단계들을 포함한다.A control method of a refrigerator having a compressor, a mutual compartment freezing compartment and a refrigerating compartment, in which a first cooler and a refrigerating fan are installed in the refrigerating compartment, and a second cooler and a freezing compartment fan are installed in the freezing compartment, wherein the temperature of the freezer compartment and the freezing of food are provided. Compare the predetermined freezer set temperature to the appropriate temperature for storage (step 261), and in this step, if the freezer temperature is higher than the freezer set temperature, the refrigerator compartment preset temperature is determined to be the temperature of the refrigerator compartment and the appropriate temperature for refrigerating food. (Step 262), and in the step, when the temperature of the refrigerator compartment is higher than the refrigerator compartment set temperature, the compressor and the refrigerator compartment fan are turned on and the freezer compartment fan is turned off (step 273), and when the refrigerator compartment temperature is below the refrigerator compartment set temperature, The compressor and freezer fan are turned on and the refrigerator compartment fan is turned off (step 274). The compressor and freezer fan are turned on and the cold storage fan is turned on. The chamber fan is turned off, and step 263 and step 263 are followed by a comparison of the refrigerating room temperature and the refrigerating room set temperature to step 262, and in the step 262 of comparing the refrigerating room temperature and the refrigerating room set temperature, the refrigerating room temperature is increased. Continuously turning on the compressor and the refrigerating fan when the refrigerator compartment temperature is higher than the refrigerator compartment temperature, turning off the freezer compartment fan, and turning on the compressor and the refrigerator compartment fan when the refrigerator compartment temperature is below the refrigerator compartment temperature and turning off the refrigerator compartment fan (step 264). do.
Description
제1도는 종래 냉장고의 전체 구성을 보인 측단면도이다.1 is a side cross-sectional view showing the overall configuration of a conventional refrigerator.
제2도는 제1도에 도시된 냉장고의 사이클 구성도이다.2 is a cycle configuration diagram of the refrigerator shown in FIG.
제3도는 제1도에 도시된 냉장고의 제어과정을 보인 흐름도이다.3 is a flowchart illustrating a control process of the refrigerator illustrated in FIG. 1.
제4도는 본 발명의 H.M.싸이클에 따른 냉장고의 개략적인 구성을 보인 측단면도이다.4 is a side cross-sectional view showing a schematic configuration of a refrigerator according to the H.M. cycle of the present invention.
제5도는 제4도에 도시된 본 발명의 H.M.싸이클에 따른 냉장고의 사이클 구성도이다.5 is a cycle configuration diagram of the refrigerator according to the H.M. cycle of the present invention shown in FIG.
제6도는 본 발명의 H.M.싸이클에 따른 냉장고의 제어부 구성을 보인 블록도이다.6 is a block diagram showing the configuration of a control unit of a refrigerator according to the H.M. cycle of the present invention.
제7도는 본 발명의 H.M.싸이클에 따른 냉장고 제어방법의 실시예를 보인 흐름도이다.7 is a flow chart showing an embodiment of a refrigerator control method according to the H.M. cycle of the present invention.
제8도는 본 발명의 H.M.싸이클의 실시예에서 시간에 따른 압축기, 냉장실팬과 냉동실팬의 작동여부를 보인 타임챠트이다.8 is a time chart showing the operation of the compressor, the refrigerator compartment fan and the freezer compartment with time in the embodiment of the H.M. cycle of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
22 : 냉동실 23 : 냉장실22: freezer 23: refrigerator
27 : 제1냉각기 28 : 냉장실팬27: first cooler 28: refrigerator compartment fan
29 : 제2냉각기 30 : 냉동실팬29: second cooler 30: freezer compartment fan
TR, TF: 냉장실온도, 냉동실온도 TRS, TFS: 냉장실설정온도, 냉동실설정온도T R , T F : Fridge temperature, Freezer temperature T RS , T FS : Fridge temperature, Freezer temperature
TES: 제1냉각기표면온도T ES : Surface temperature of the first cooler
본 발명은 냉장고 및 그 제어방법에 관한 것으로, 특히 직렬로 연결된 2개의 냉각기가 냉동실과 냉장실에 각각 설치되고 각 실에 설치된 2개의 팬에 의해 각실의 온도가 독립적으로 제어되는 고효율 독립냉각 싸이클((High efficiency Multi-evaporator cycle: H.M.CYCLE)을 갖는 냉장고 및 그 제어방법에 관한 것이다.The present invention relates to a refrigerator and a control method thereof. In particular, two coolers connected in series are respectively installed in a freezing compartment and a refrigerating compartment, and two high-temperature independent cooling cycles are independently controlled by two fans installed in each compartment. The present invention relates to a refrigerator having a high efficiency multi-evaporator cycle (HMCYCLE) and a control method thereof.
일반적으로 냉장고는 제1도에 도시한 바와 같이, 중간격벽(1)에 의해 구획된 냉동실(2)과 냉장실(3)을 형성하는 단열구조의 냉장고본체(4)에 냉동실도아(5)와 냉장실도아(6)가 설치되어 구성된다. 제2도에 도시한 바와 같이, 냉동사이클을 수행하기 위한 구성부품인 압축기(7), 응축기(8), 감압기(9), 그리고 냉각기(10)는 냉매관(11)에 의해 차례로 연결되어 폐회로를 구성한다. 이러한 냉장고는, 제2도에 화살표로 나타낸 바와 같이, 냉매관(11)과 냉동사이클 구성부품을 통과하는 냉매의 상태변화에 의해 열을 수수함으로써 냉동사이클을 수행하는데, 특히 냉각기(10)의 증발작용에 의해 주위로부터 열을 흡수하여 냉기를 생성한다.Generally, the refrigerator includes a freezer compartment door 5 and a refrigerating compartment in a refrigerator body 4 having an insulating structure forming a freezer compartment 2 and a refrigerating compartment 3 partitioned by an intermediate partition 1, as shown in FIG. The door 6 is provided and comprised. As shown in FIG. 2, the compressor 7, the condenser 8, the pressure reducer 9, and the cooler 10, which are components for performing the refrigerating cycle, are sequentially connected by the refrigerant pipe 11. Construct a closed circuit. Such a refrigerator performs a refrigeration cycle by receiving heat due to the change of state of the refrigerant passing through the refrigerant pipe 11 and the refrigeration cycle components, as indicated by the arrows in FIG. 2, in particular the evaporation of the cooler 10. The action absorbs heat from the surroundings, producing cold air.
제1도를 참조하며, 압축기(7)는 본체(4)의 하측에 설치되고, 냉각기(10)는 냉동실(2)의 후벽에 설치된다. 냉각기(10)의 상측에는 냉각팬(12)이 설치되고, 냉각팬(12)의 전방과 냉장실(3)의 후벽에는 각각 냉기유출구(13)가 형성된 팬가이드(14)와 냉기덕트(15)가 설치된다. 냉각기(10)를 거치면서 열교환된 냉기의 일부는 팬가이드(14)의 냉기유출구(13)를 통해서 냉동실(2)로 공급되고, 나머지 일부는 냉기덕트(15)의 냉기유출구(13)를 통해서 냉장실(3)로 공급된다. 각 실로 공급된 냉기의 귀환을 위해 중간격벽(1)에는 제1귀환로(16)와 제2귀환로(17)가 각각 형성된다. (18)는 냉장실(3)로 공급되는 냉기의 양을 조절하기 위한 조절댐퍼이다.Referring to FIG. 1, the compressor 7 is installed below the main body 4, and the cooler 10 is installed on the rear wall of the freezing chamber 2. A cooling fan 12 is installed above the cooler 10, and a fan guide 14 and a cooling air duct 15 having a cooling air outlet 13 formed in front of the cooling fan 12 and a rear wall of the refrigerating chamber 3, respectively. Is installed. A portion of the cold air heat exchanged while passing through the cooler 10 is supplied to the freezing chamber 2 through the cold air outlet 13 of the fan guide 14, and the other part is supplied through the cold air outlet 13 of the cold air duct 15. It is supplied to the refrigerator compartment 3. The first return path 16 and the second return path 17 are respectively formed in the intermediate partition 1 for the return of cold air supplied to each chamber. Reference numeral 18 denotes an adjustment damper for adjusting the amount of cold air supplied to the refrigerating chamber 3.
다음에는 제3도를 참조하여, 종래의 냉장고의 제어방법을 설명한다. 먼저 압축기의 온오프의 여부를 결정하기 위해 냉동실의 온도를 검지하여 냉동실의 온도(TF)와 식품의 냉동보관을 위한 적절한 온도로 미리 정해진 냉동실설정온도(TFS)를 비교판단한다(단계110). 단계110에서 냉동실온도(TF)가 냉동실설정온도(TFS)보다 높은 경우에는 압축기(7)와 냉각팬(10)을 온(ON)시키고(단계111), 냉동실온도(TF)가 냉동실설정온도(TFS) 이하인 경우에는 압축기(7)와 냉각팬(10)을 오프(OFF)시킨다(단계112). 다음에 단계111과 단계112 이후에 냉장실온도(TR)와 식품의 냉장보관을 위한 적절한 온도로 미리 정해진 냉장실 설정온도(TRS)를 비교하여(단계113) 냉장실온도(TR)가 냉장실설정온도(TRS)보다 높으면 조절댐퍼(18)를 열고(단계114), 냉장실온도(TR)가 냉장실설정온도(TRS) 이하이면 조절댐퍼(18)를 닫는다(단계115).Next, a control method of a conventional refrigerator will be described with reference to FIG. 3. First, in order to determine whether the compressor is on or off, the temperature of the freezer compartment is detected, and the freezer compartment temperature (T F ) is compared with a predetermined freezer compartment set temperature (T FS ) at an appropriate temperature for freezing storage of food (step 110). ). If the freezer compartment temperature T F is higher than the freezer compartment set temperature T FS in step 110, the compressor 7 and the cooling fan 10 are turned on (step 111), and the freezer compartment temperature T F is the freezer compartment. When the temperature is equal to or lower than the set temperature T FS , the compressor 7 and the cooling fan 10 are turned off (step 112). Next, after step 111 and step 112, the refrigerator compartment temperature (T R ) is set by comparing the refrigerator compartment temperature (T R ) with a predetermined refrigerator compartment set temperature (T RS ) to an appropriate temperature for refrigerating food. When the temperature T RS is higher than the control damper 18 is opened (step 114), and when the refrigerator compartment temperature T R is equal to or lower than the refrigerator compartment set temperature T RS , the control damper 18 is closed (step 115).
따라서 압축기의 온(ON)상태에서는 냉각팬(10)의 운전으로 조절댐퍼(18)의 온,오프에 따라 냉기가 냉장실로 잘 분배되지만, 압축기 오프(OFF)상태인 경우에는, 냉장실온도가 냉장실설정온도보다 높아서 조절댐퍼(18)가 열린다 하더라도 냉각팬(10)이 오프이므로 냉장실로 냉기의 배분이 거의 일어나지 않아 냉장실의 온도상승을 억제하기 힘들다. 즉, 조절댐퍼에 의해 냉기의 양이 조절된다 하더라도 냉장실의 온도가 압축기의 온,오프에 따라 편차가 크게 나타나므로 정온(定溫)냉장을 실현하기 어려운 점이 있었다.Therefore, in the ON state of the compressor, the cold air is well distributed to the refrigerating chamber according to the on / off of the control damper 18 by the operation of the cooling fan 10. However, in the case of the compressor OFF state, the refrigerating chamber temperature is the refrigerating chamber. Even if the control damper 18 is opened due to a higher temperature than the set temperature, since the cooling fan 10 is turned off, the distribution of cold air to the refrigerating compartment hardly occurs, and thus it is difficult to suppress the temperature rise of the refrigerating compartment. That is, even if the amount of cold air is controlled by the control damper, the temperature of the refrigerating chamber varies greatly with the on and off of the compressor, which makes it difficult to realize constant temperature refrigeration.
또한, 냉장실, 냉동실은 표준온도조건에서 각각 3℃, -18℃를 유지하도록 규정되어 있는데, 하나의 열원(냉각기)에서 각 실의 2개의 온도대역을 제어하는데 한계가 있어 냉장고의 에너지 효율을 저하시키는 문제점이 있었다. 즉 하나의 냉각기에 의해서 냉동실과 냉장실을 전술한 소정의 온도대역으로 제어해야하는데, 이 경우 제어전과 제어후의 냉각기와 각 실의 온도차이가 심하므로 냉각과정에 따른 열역학적 비가역손실이 크게 되고, 이에 따라 냉장고의 에너지 효율이 떨어지는 문제점이 있었다.In addition, the refrigerator compartment and the freezer compartment are regulated to maintain 3 ° C and -18 ° C under standard temperature conditions, respectively, and there is a limit in controlling two temperature bands of each room in one heat source (cooler), which lowers the energy efficiency of the refrigerator. There was a problem letting. In other words, the freezer compartment and the refrigerating compartment should be controlled to the predetermined temperature range by one cooler. In this case, the temperature difference between the cooler and the control chamber before and after the control is severe, so that the thermodynamic irreversible loss due to the cooling process becomes large. There was a problem that the energy efficiency of the refrigerator falls.
또한, 종래의 냉장고에서는 냉장실과 냉동실이 덕트와 귀환로에 의해 연통되어 있으므로 냉장실의 음식물에서 나온 수분이 냉각기를 통과하면서 온도가 매우 낮은 냉각기 표면에 성에를 형성하여 냉각기의 열전달효율을 저하시키고 냉각기를 통과하는 풍량을 감소시키는 문제점이 있었고, 이 서리를 제거하기 위해 전기히터를 사용하므로 소비전력을 증대시키는 문제점이 있었다.In addition, in the conventional refrigerator, since the refrigerating compartment and the freezing compartment communicate with the duct and the return path, moisture from the food in the refrigerating compartment passes through the cooler, forming frost on the surface of the cooler having a very low temperature, thereby decreasing the heat transfer efficiency of the cooler and There was a problem of reducing the amount of air passing through, there was a problem of increasing the power consumption because the electric heater to remove this frost.
또한, 종래의 냉장고에서는 냉동실의 냉각기에서 생성된 냉기가 냉기덕트에 의해 안내되고 조절댐퍼에 의해 조절되어 냉장실로 공급되는 복잡한 과정을 거치므로 냉장실의 냉각속도가 늦어지고 동시에 냉장실의 온도변화에 신속하게 대응하지 못하는 문제점이 있었다. 즉, 냉동실에서 생성된 냉기가 냉기덕트를 통해 냉장실로 공급되고, 공급되는 냉기의 양은 조절댐퍼에 의해 제어되므로 냉장실을 소정온도(약3℃)로 냉각시키기는 데는 상당한 시간이 걸린다. 특히 소비자가 최초로 냉장고를 가동시키거나, 장시간 불사용 상태에서 냉장고를 작동시킬 경우, 냉장실은 약 30℃정도의 고온상태이므로 약 3℃ 정도의 표준온도로 냉각시키는 데는 상당한 시간이 소요되고, 냉장고의 운전중에도 냉장실의 온도변화에 신속하게 대응할 수 없으므로 정온냉장을 실현하는 데 한계가 있었다. 이러한 문제점을 해결하기 위해 냉동실과 냉장실에 각각 전용팬모터를 설치한 냉장고가 제안되고 있으나, 이러한 냉장고에서도 냉각기는 냉동실에만 설치되어 있어, 냉동실에서 생성된 냉기가 냉장실로 공급되어야 하므로 냉각속도를 빠르게 하는데는 한계가 있을 뿐만 아니라 냉동실과 냉장실을 별도로 제어할 수 없는 문제점이 있었다.In addition, in the conventional refrigerator, since the cold air generated in the freezer cooler is guided by the cold air duct, controlled by the control damper, and supplied to the refrigerating compartment, the cooling rate of the refrigerating compartment is delayed and at the same time, the temperature of the refrigerating compartment is rapidly changed. There was a problem that could not respond. That is, since the cold air generated in the freezing chamber is supplied to the refrigerating chamber through the cold air duct, and the amount of the supplied cold air is controlled by the control damper, it takes a considerable time to cool the refrigerating chamber to a predetermined temperature (about 3 ° C). In particular, when a consumer operates a refrigerator for the first time or operates the refrigerator without using it for a long time, the refrigerating chamber is in a high temperature of about 30 ° C., so it takes a considerable time to cool it to a standard temperature of about 3 ° C. There was a limit in realizing constant temperature refrigeration because it could not respond quickly to the temperature change of the fridge during operation. In order to solve these problems, refrigerators with dedicated fan motors are proposed in the freezer compartment and the refrigerating compartment, respectively, but in these refrigerators, the cooler is installed only in the freezer compartment, so that the cooling air generated in the freezer compartment must be supplied to the refrigerating compartment. In addition to the limitations, there was a problem in that the freezer compartment and the refrigerating compartment cannot be controlled separately.
따라서, 본 발명은 이러한 문제점들을 해결하기 위한 것으로, 본 발명의 주목적은 냉동실과 냉장실에 별도의 냉각기를 설치하고 냉동실과 냉장실을 별도로 제어하도록 구성함으로써 냉각기와 각 실의 온도차를 축소시켜 온도제어에 따른 열역학적 비가역손실을 감소시키고 이에 따라 냉장고의 에너지효율을 향상시키는 냉장고 및 그 제어방법을 제공하는 것이다.Accordingly, the present invention is to solve these problems, the main object of the present invention is to install a separate cooler in the freezer compartment and the refrigerating compartment and configured to control the freezer compartment and the refrigerating compartment separately to reduce the temperature difference between the cooler and each chamber according to the temperature control It is to provide a refrigerator and a control method thereof for reducing the thermodynamic irreversible loss and thus improving the energy efficiency of the refrigerator.
본 발명의 다른 목적은, 압축기 오프시에 냉장실 공기를 이용하여 제상을 수행하고 제상과정에서 녹은 수분이 다시 냉장실을 순환하게 함으로써 냉장실을 고습화하여 냉장식품의 신선도를 장시간 유지시킬 수 있는 냉장고 및 그 제어방법을 제공하는 것이다.Another object of the present invention, a refrigerator that can defrost the refrigerator compartment by using the refrigerating chamber air when the compressor is off and the moisture dissolved in the defrosting process to circulate the refrigerating chamber again to maintain the freshness of the refrigerated food for a long time and its It is to provide a control method.
본 발명의 또 다른 목적은 냉동실과 냉장실에 별도의 냉각시스템(냉각기와 냉각팬)을 설치하고 이들을 독립적으로 제어함으로써 각 살의 냉각속도를 극대화할 수 있는 냉장고 및 그 제어방법을 제공하는 것이다.Still another object of the present invention is to provide a refrigerator and a method of controlling the same, by installing separate cooling systems (coolers and cooling fans) in the freezer compartment and the refrigerating compartment and controlling them independently.
한편, 본 발명의 또 다른 목적은 냉장실을 먼저 냉각시키고 냉장실이 설정온도 이하로 냉각된 후에 냉동실을 냉각시켜 에너지를 절약함과 동시에 압축기의 기동력을 감소시키는 냉장고 및 그 제어방법을 제공하는 것이다.On the other hand, another object of the present invention is to provide a refrigerator and a method of controlling the same, which cools the refrigerating compartment first and then cools the refrigerating compartment after the refrigerating compartment is cooled below a set temperature, thereby reducing the maneuverability of the compressor.
이러한 목적을 달성하기 위한 본 발명에 따른 냉장고는, 냉매를 압축하는 압축기, 상호 구획 형성되어 별도로 냉각되는 냉장실과 냉동실, 상기 냉장실에 설치된 제1냉각기, 상기 냉장실에 설치되어 상기 냉장실의 공기를 상기 제1냉각기를 통과하도록 송풍시키는 냉장실팬, 상기 냉동실에 설치되되 상기 제1냉각기와 직렬로 배치된 제2냉각기, 상기 냉동실에 설치되어 상기 냉동실의 공기를 상기 제2냉각기를 통과하도록 송풍시키는 냉동실팬, 냉동실의 온도가 식품의 냉동보관을 위해 적절한 온도로 미리 정해진 냉동실정온도보다 높고 냉장실온도 온도가 식품의 냉장보관을 위해 적절한 온도로 미리 정해진 냉장실설정온도보다 높은 경우에 상기 압축기와 함께 먼저 냉잘실팬을 온시켜 냉장실을 냉각시키고, 냉장실이 냉장실정온도 이하로 냉각되면 상기 압축기와 함께 냉동실팬을 온시켜 냉동실의 냉각을 수행하도록 상기 압축기와 냉장실팬 및 냉동실팬을 제어하는 제어부를 포함한 구성이다.A refrigerator according to the present invention for achieving the above object is a compressor for compressing a refrigerant, a refrigerating compartment and a freezing compartment which are separately formed and mutually cooled, a first cooler installed in the refrigerating compartment, and installed in the refrigerating compartment to remove air from the refrigerating compartment. A refrigerator compartment fan which blows the air to pass through the cooler, a second cooler installed in the freezer compartment and disposed in series with the first cooler, and a freezer compartment fan installed in the freezer compartment to blow air in the freezer compartment through the second cooler; When the temperature of the freezer compartment is higher than the predetermined freezer compartment temperature at a temperature suitable for freezing storage of food and the refrigerator compartment temperature is higher than the predetermined refrigerator compartment set temperature at a temperature suitable for refrigeration of food, the refrigerator first is When the refrigerator cools down and the refrigerator cools below the refrigerator temperature, And a control unit for controlling the compressor, the refrigerator compartment fan, and the freezer compartment fan to turn on the freezer compartment fan together with the air compressor to perform cooling of the freezer compartment.
또한 상기 목적을 달성하기 위한 본 발명은, 압축기, 상호구획된 냉동실과 냉장실을 구비하며, 상기 냉장실에 제1냉각기와 냉장실팬이 설치되고, 상기 냉동실에 제2냉각기와 냉동실팬이 설치된 냉장고의 제어방법에 있어서, 냉동실의 온도와 식품의 냉동보관을 위한 적절한 온도로 미리 정해진 냉동실 설정온도를 비교하고, 상기 단계에서 냉동실 온도가 냉동실설정온도보다 높은 경우에 냉장실의 온도의 식품의 냉장보관을 위한 적절한 온도로 미리 정해진 냉장실설정온도를 비교하고, 상기 단계에서 냉장실의 온도가 냉장실설정온도보다 높은 경우에 상기 압축기와 냉장실팬을 온시키고, 냉동실팬은 오프시키는 단계들을 포함한 구성이다.In addition, the present invention for achieving the above object is provided with a compressor, a mutual compartment freezer compartment and a refrigerating compartment, a first cooler and a refrigerating compartment fan is installed in the refrigerating compartment, the control of the refrigerator provided with a second cooler and a freezer compartment fan in the freezer compartment. A method comprising: comparing a predetermined freezer set temperature with a temperature of a freezer compartment and an appropriate temperature for freezing storage of food, and in this step, suitable for refrigeration of food at a temperature of the freezer compartment if the freezer temperature is higher than the freezer set temperature. Comparing the predetermined refrigerating chamber set temperature with the temperature, and in the step, when the temperature of the refrigerating chamber is higher than the refrigerating chamber set temperature, the compressor and the refrigerator compartment fan are turned on, and the freezer compartment fan is turned off.
이하에서는 첨부도면을 참조하면서 본 고안의 바람직한 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.
먼저, 제4,5,6도를 참조하여 본 발명에 따른 냉장고를 설명한다. 제4도에 도시한 바와 같이, 본 발명에 따른 냉장고(20)는 단열구조의 냉장고본체(21)의 내부에 상호간의 냉기혼합이 일어나지 않도록 상호 구획된 하측의 냉동실(22)과 상측의 냉장실(23)이 형성된다. 이러한 냉동실(22)과 냉장실(23)은 중간격벽(24)에 의해 구획되며, 각각 냉동실도아(25)와 냉장실도아(26)에 의해 개폐된다. 즉, 종래의 냉장고와 달리 냉동실과 냉장실을 연통시키는 냉기유로가 없으며, 중간격벽에도 귀환로가 형성되지 않는다. 냉장실(23)의 후벽에는 제1냉각기(27)와 냉동실팬(28)이 설치되며, 냉동실(22)의 후벽에는 제2냉각기(29)와 냉동실팬(30)이 설치된다. 본 명세서에서 냉동실팬과 냉장실팬은 팬모타를 포함하는 개념이다. 그리고 냉장고본체(21)의 하측에 압축기(31)가 설치된다.First, a refrigerator according to the present invention will be described with reference to FIGS. 4, 5, and 6. As shown in FIG. 4, the refrigerator 20 according to the present invention includes a lower freezing compartment 22 and an upper refrigerating compartment which are mutually partitioned so that cold air mixing does not occur inside the refrigerator body 21 having a heat insulating structure. 23) is formed. The freezer compartment 22 and the refrigerating compartment 23 are partitioned by an intermediate partition 24, and are opened and closed by a freezer compartment door 25 and a refrigerating compartment door 26, respectively. That is, unlike the conventional refrigerator, there is no cold air path communicating the freezer compartment and the refrigerating compartment, and no return path is formed in the intermediate partition. The rear wall of the refrigerating chamber 23 is provided with a first cooler 27 and a freezing chamber fan 28, and the rear wall of the refrigerating chamber 22 is provided with a second cooler 29 and a freezing chamber fan 30. In the present specification, the freezer compartment fan and the refrigerating compartment fan are concepts including a fan motor. And the compressor 31 is installed below the refrigerator main body 21.
이러한 본 발명에 따른 냉장고의 사이클 구성은 제5도에 도시한 바와 같다. 즉, 압축기(31), 응축기(32), 모세관(33), 그리고 제1냉각기(27)와 제2냉각기(29)가 냉매관(34)에 의해 차례로 연결되어 폐회로를 구성하며, 제1냉각기(27)와 제2냉각기(29)의 부근에는 냉장실팬(28)과 냉동실팬(30)이 각각 설치된다. 특히 제1냉각기(27)와 제2냉각기(29)는 직렬로 배치되어 제1냉각기(27)를 통과한 모든 냉매가 제2냉각기(29)를 통과하도록 구성된다. 냉매는 화살표로 나타낸 바와 같이, 냉매관(34)의 내부를 흐르면서 상태변화를 하며, 특히 제1냉각기(27)와 제2냉각기(29)를 통과하면서 증발되어 이를 통과하는 공기로부터 열을 흡수하여 냉기를 생성한다. 생성된 냉기는 냉장실팬(28)과 냉동실팬(30)의 작동에 의해 냉동실(22)과 냉장실(23)로 공급되는 것이다.The cycle configuration of the refrigerator according to the present invention is as shown in FIG. That is, the compressor 31, the condenser 32, the capillary tube 33, and the first cooler 27 and the second cooler 29 are sequentially connected by the refrigerant pipe 34 to form a closed circuit, and the first cooler The refrigerator compartment fan 28 and the freezer compartment fan 30 are respectively provided in the vicinity of the 27 and the second cooler 29. In particular, the first cooler 27 and the second cooler 29 are arranged in series so that all the refrigerant passing through the first cooler 27 passes through the second cooler 29. As shown by the arrow, the refrigerant changes state as it flows through the inside of the refrigerant pipe 34, and in particular, the refrigerant absorbs heat from the air that is evaporated and passes through the first cooler 27 and the second cooler 29. Create cold air. The generated cold air is supplied to the freezing compartment 22 and the refrigerating compartment 23 by the operation of the refrigerating compartment fan 28 and the freezing compartment fan 30.
이러한 냉장고에서 냉매는 단일(單一)냉매, 예를 들면 CFC-12, 또는 HFC-134a 등이 사용된다. 이러한 냉매의 상변화 과정을 좀더 상세하게 설명하면 다음과 같다. 먼저 압축기(31)에서 냉매는 고온 고압으로 압축되고, 압축된 냉매는 응축기(32)를 흐르면서 주위와의 열교환을 통해 응축된다. 이렇게 응축된 냉매는 모세관(33) 또는 팽창밸브를 통과하면서 감압되어 제1냉각기(27)와 제2냉각기(29)를 통과하면서 증발된다. 제1냉각기(27)와 제2냉각기(29)는 직렬로 배치되어 있고, 이들 사이에는 아무런 구조물이 없으므로 제1냉각기(27)를 통과한 냉매의 전부가 곧바로 제2냉각기(29)를 통과하게 된다. 이때 제1냉각기(27)를 통과하면서 냉매의 일부가 증발되고 제2냉각기(29)를 통과하면서 냉매의 나머지가 증발되어 전부 가스상태로 되는 것이다. 이렇게 증발된 냉매는 압축기(31)에 흡입됨으로써 사이클을 구성하고 이러한 사이클은 압축기의 운전에 따라 반복된다. 한편, 냉매가 증발되면서 냉각기를 지나는 공기로부터 열을 흡수하게 되는데, 냉장실팬(28)과 냉동실팬(30)의 운전으로 고내의 공기가 제1냉각기(27)와 제2냉각기(29)를 지나게 되고 열을 빼앗기면서 생성된 냉기는 제4도에 화살표로 도시한 바와 같이, 다시 고내로 공급되어 냉장실과 냉동실을 냉각시키는 것이다.In such a refrigerator, a single refrigerant, for example, CFC-12, HFC-134a, or the like is used. The phase change process of the refrigerant will be described in more detail as follows. First, in the compressor 31, the refrigerant is compressed to high temperature and high pressure, and the compressed refrigerant flows through the condenser 32 to condense through heat exchange with the surroundings. The refrigerant condensed as described above is decompressed while passing through the capillary tube 33 or the expansion valve to be evaporated while passing through the first cooler 27 and the second cooler 29. Since the first cooler 27 and the second cooler 29 are arranged in series, and there is no structure between them, all of the refrigerant passing through the first cooler 27 passes directly through the second cooler 29. do. At this time, a portion of the refrigerant is evaporated while passing through the first cooler 27, and the rest of the refrigerant is evaporated while passing through the second cooler 29, thereby becoming a gas state. The refrigerant evaporated in this way constitutes a cycle by being sucked into the compressor 31, and the cycle is repeated according to the operation of the compressor. On the other hand, the refrigerant is evaporated to absorb heat from the air passing through the cooler, the operation of the refrigerator compartment fan 28 and the freezer compartment 30 to pass the air in the interior of the first cooler 27 and the second cooler (29). The cold air generated as the heat is taken away is supplied to the inside of the refrigerator again to cool the refrigerating compartment and the freezing compartment, as shown by arrows in FIG.
이와 같이, 2개의 냉각기와 2개의 팬을 가지면서 작동유체로서 단일냉매를 사용하는 시스템은 본 명세서에서 H.M.싸이클이라 정의한다. 이 H.M.싸이클은 냉각기들 사이에 기액분리기나 냉매의 유동방향을 제어하기 위한 밸브와 같은 부품이 필요 없게 되고 냉각기를 직렬로 배치할 수 있어 냉동 사이클을 위한 배관구성이 매우 단순해진다. 또한 단일 냉매를 사용하므로 제조공정에서 혼합냉매 사용시와 같은 냉매 봉입량의 산포에 따른 성능변화가 크지 않아 양산(量産)에 매우 유리하다. 또한 단일 냉매를 사용하여도 냉각기를 통과하는 공기의 온도에 따라 증발온도가 변하기 때문에 열역학적 비가역손실을 줄일 수 있다. 즉 냉장실증발기인 제1냉각기를 지나는 공기의 온도는 상대적으로 높기 때문에 제1냉각기의 증발온도는 높아지고 냉동실증발기인 제2냉각기를 지나는 공기의 온도는 상대적으로 낮기 때문에 제2냉각기의 온도는 상대적으로 낮아 각 냉각기와 각실의 냉각전과 냉각후의 온도차이를 줄일 수 있으므로 열역학적 비가역손실을 감소시킬 수 있는 것이다.As such, a system having two coolers and two fans and using a single refrigerant as working fluid is defined herein as an H.M. cycle. This H.M. cycle eliminates the need for components such as gas-liquid separators or valves to control the flow direction of the coolant between coolers and allows the chillers to be arranged in series, simplifying the piping configuration for the refrigeration cycle. In addition, since a single refrigerant is used, the change in performance due to the dispersion of the refrigerant charge amount, such as when the mixed refrigerant is used in the manufacturing process, is very advantageous for mass production. In addition, even if a single refrigerant is used, the thermodynamic irreversible loss can be reduced because the evaporation temperature is changed depending on the temperature of the air passing through the cooler. That is, since the temperature of the air passing through the first cooler, which is a refrigerator evaporator, is relatively high, the evaporation temperature of the first cooler is high, and the temperature of the air passing through the second cooler, which is a freezer evaporator, is relatively low, so that the temperature of the second cooler is relatively low. It is possible to reduce the thermodynamic irreversible loss by reducing the temperature difference between each cooler and each chamber before and after cooling.
다음에는 제6도를 참조하여 본 발명의 H.M.싸이클에 따른 냉장고의 제어부의 구성을 설명한다. 제어부(35)의 입력측에는 도아스위치(36), 냉장실온도센서(37), 냉동실온도센서(38), 외기온도센서(39), 그리고 제1냉각기표면온도센서(40)와 제2냉각기표면온도센서(40')가 접속되어, 도아의 개폐여부, 냉동실의 온도, 냉장실의 온도, 제1냉각기와 제2냉각기의 표면온도를 각각 검지하여 전기신호로써 제어부(35)에 전달한다. 또한 제어부(35)의 출력측에는 압축기(31), 냉장실팬(28) 및 냉동실팬(30)을 각각 온,오프시키기 위한 제1스위치(41)와 제2스위치(42), 그리고 제3스위치(43)가 전기접속되어, 전술한 입력신호에 따라 작동한다. 즉, 제1스위치(41)와 제2스위치(42),그리고 제3스위치(43)는 상기한 각 센서들로부터 입력된 신호에 따라 스위치제어부(44)에 의해 제어되어 각각 압축기(31)와 냉동실팬(28) 및 냉장실팬(30)을 온오프시키는 것이다. 따라서 압축기와 냉동실팬 및 냉장실팬을 각각 독립적으로 제어하는 것이 가능하다.Next, the configuration of the controller of the refrigerator according to the H.M. cycle of the present invention will be described with reference to FIG. On the input side of the control unit 35, a door switch 36, a refrigerator compartment temperature sensor 37, a freezer compartment temperature sensor 38, an outside air temperature sensor 39, a first cooler surface temperature sensor 40 and a second cooler surface temperature The sensor 40 'is connected to detect whether the door is opened or closed, the temperature of the freezer compartment, the temperature of the refrigerating compartment, and the surface temperature of the first cooler and the second cooler, respectively, and transmitted to the control unit 35 as an electric signal. In addition, the output side of the control unit 35, the first switch 41, the second switch 42, and the third switch for turning on and off the compressor 31, the refrigerator compartment fan 28 and the freezer compartment fan 30, respectively ( 43 is electrically connected to operate according to the above-described input signal. That is, the first switch 41, the second switch 42, and the third switch 43 are controlled by the switch control unit 44 according to the signals input from the above-described sensors, respectively, so that the compressor 31 and The freezing chamber fan 28 and the refrigerating chamber fan 30 are turned on and off. Therefore, it is possible to independently control the compressor, the freezer compartment fan and the refrigerating compartment fan.
이러한 제어부(35)는 냉동실온도센서에 의해 검지된 냉동실의 온도와 식품의 냉동보관을 위해 적절한 온도로 미리 정해진 냉동실설정온도, 그리고 냉장실온도센서에 의해 검지된 냉장실의 온도와 식품의 냉장보관을 위해 적절한 온도로 미리 정해진 냉장실설정온도를 비교함으로써 이루어진다. 본 명세서에서 설정온도라 함은 냉장고 고유의 특성을 유지할 수 있는 고내의 온도대역을 말하는 것으로, 냉동실설정온도는 전술한 바와 같이 식품의 냉동보관을 위해 적절한 온도로 미리 정해진 온도로서 -15℃ ~ -21℃의 범위이다. 즉, 냉동실설정온도는 이러한 범위내에서, 사용자의 선택에 따라 미리 정해진 -21℃(냉동강), -18℃(냉동중), -15℃(냉동약)의 어느 하나로 정해진다. 또한 냉장실 설정온도는 전술한 바와 같이 식품의 냉장보관을 위해 적절한 온도로 미리 정해진 온도로서 6℃ ~ -1℃의 범위이다. 즉 냉장실설정온도는 이러한 범위내에서, 사용자의 선택에 따라 미리 정해진 -1℃(냉장강), 3℃(냉장중), 6℃(냉장약)의 어느 하나로 정해진다.The control unit 35 is for the freezer compartment temperature detected by the freezer compartment temperature sensor and the freezer compartment preset temperature at a suitable temperature for freezer storage of food, and the temperature of the refrigerator compartment detected by the refrigerator compartment temperature sensor and the refrigeration of food. This is done by comparing the predetermined refrigerator compartment set temperature to the appropriate temperature. In the present specification, the set temperature refers to a temperature range within the refrigerator capable of maintaining inherent characteristics of the refrigerator, and the freezer setting temperature is a predetermined temperature at a temperature suitable for freezing storage of food as described above. It is the range of 21 degreeC. That is, within the above range, the freezer compartment setting temperature is set to any one of -21 ° C (freezing steel), -18 ° C (during freezing), and -15 ° C (frozen medicine) predetermined according to a user's selection. In addition, the refrigerating chamber set temperature is in the range of 6 ° C ~ -1 ° C as a predetermined temperature to a temperature suitable for the refrigeration of food as described above. In other words, the refrigerating chamber set temperature is set to any one of -1 ° C. (cold steel), 3 ° C. (during refrigeration), and 6 ° C. (refrigeration medicine) predetermined according to the user's choice within this range.
본 실시예에서 제어는 냉동실온도가 냉동실설정온도보다 높고 냉장실온도가 냉장실설정온도보다 높은 경우에 압축기와 함께 먼저 냉장실팬을 온시켜 냉장실을 냉각하고, 냉장실이 그 설정온도 이하로 냉각되면 압축기와 함께 냉동실팬을 온시켜 냉동실의 냉각을 수행하도록 제어하는 것이다.In this embodiment, when the freezer compartment temperature is higher than the freezer preset temperature and the freezer compartment temperature is higher than the refrigerator compartment set temperature, the control first cools the refrigerator compartment by turning on the refrigerator compartment fan together with the compressor, and when the refrigerator compartment cools below the set temperature, together with the compressor. By controlling the freezer compartment fan to perform cooling of the freezer compartment.
다음에는 상기와 같이 구성된 본 발명의 H.M.싸이클에 따른 냉장고의 제어방법의 실시예를 설명한다.Next, an embodiment of a control method of a refrigerator according to the H.M. cycle of the present invention configured as described above will be described.
제7도에 도시한 바와 같이, 먼저, 냉동실온도(TF)와 냉동실설정온도(TFS)를 비교한다(단계261). 단계 261에서 냉동실온도(TF)가 냉동실설정온도(TFS) 보다 높은 경우에 냉장실온도(TR)와 냉장실설정온도(TRS)를 비교한다(단계262). 단계262에서 냉장실온도(TR)가 냉장실설정온도(TRS)보다 높은 경우에는 압축기와 냉장실팬을 온시키고 냉동실팬을 오프시키며(단계263), 냉장실온도(TR)가 냉장실설정온도(TRS) 이하인 경우에는 압축기와 냉동실팬을 온시키고 냉장실팬을 오프시킨다(264). 즉 본 실시예는 냉동실이 불만족 상태이고 냉장실이 불만족 상태이면 냉장실을 먼저 냉각시키는데 특징이 있다. 이는 냉장실와 냉동실이 다같이 불만족 상태에 있는 경우에는, 일반적으로 냉동실증발기인 제2냉각기의 온도는 냉동실온도보다 높은 상태에 있고 냉장실증발기인 제1냉각기의 온도는 냉장실온도보다 낮은 상태에 있거나 제2냉각기와 냉동실의 온도차이보다는 제1냉각기와 냉장실의 온도차이가 더 작기 때문에, 제8도(a)에 도시한 바와 같이, 냉장실을 먼저 냉각한 후 제1냉각기의 온도가 충분히 떨어진 후 냉동실팬을 운전시켜 냉동실을 냉각시키는 형태를 취한 것이다. 따라서 제2냉각기보다 냉동실온도가 더 낮음에도 불구하고 냉동실팬을 운전시킴으로써 발생되는 역효과와 에너지손실을 줄일 수 있다. 이를 좀더 상세하게 설명하면, 냉동실 온도에 따라 압축기가 온되는 시점에서 냉동실용 증발기인 제2냉각기의 온도는 냉동실온도보다 높으며, 냉장실용 증발기인 제1냉각기의 온도는 냉장실온도보다 낮게 유지된다. 따라서 압축기가 온되는 시점에서 냉동실을 운전시키면 제2냉각기의 온도가 냉동실의 온도보다 높기 때문에 오히려 냉동실의 온도가 상승하게 되어 불필요하게 에너지를 소비하게 되므로, 압축기가 온되는 시점에서 냉장실보다 낮은 온도의 제1냉각기를 먼저 운저시켜 에너지소비를 줄일 수 있는 것이다.As shown in Fig. 7, first, the freezer compartment temperature T F and the freezer compartment set temperature T FS are compared (step 261). When the freezer compartment temperature T F is higher than the freezer compartment set temperature T FS in step 261, the refrigerator compartment temperature T R is compared with the refrigerator compartment set temperature T RS (step 262). If the refrigerator compartment temperature T R is higher than the refrigerator compartment set temperature T RS in step 262, the compressor and the refrigerator compartment fan are turned on and the freezer compartment fan is turned off (step 263), and the refrigerator compartment temperature T R is the refrigerator compartment set temperature (T R ). RS ) or less, the compressor and the freezer compartment fan are turned on and the refrigerator compartment fan is turned off (264). In other words, the present embodiment is characterized by cooling the refrigerator compartment first when the freezer compartment is unsatisfactory and the refrigerator compartment is unsatisfactory. When the refrigerator and the freezer are both dissatisfied, the temperature of the second cooler, which is a freezer evaporator, is generally higher than the freezer temperature, and the temperature of the first cooler, which is a refrigerator evaporator, is lower than the temperature of the freezer compartment or the second cooler. Since the temperature difference between the first cooler and the refrigerating compartment is smaller than that between the freezer compartment and the freezer compartment, as shown in FIG. 8 (a), after cooling the refrigerating compartment first, the freezer compartment is operated after the temperature of the first cooler has sufficiently dropped. To cool the freezer compartment. Therefore, despite the lower temperature of the freezer compartment than the second cooler, it is possible to reduce the adverse effects and energy loss caused by operating the freezer compartment fan. In more detail, the temperature of the second refrigerator, which is the freezer compartment evaporator, is higher than the freezer compartment temperature when the compressor is turned on according to the freezer compartment temperature, and the temperature of the first refrigerator, which is the refrigerator compartment evaporator, is kept lower than the refrigerator compartment temperature. Therefore, when the freezer is operated when the compressor is turned on, the temperature of the second cooler is higher than that of the freezer, so the temperature of the freezer is increased, which consumes energy unnecessarily. By cooling the first cooler first, energy consumption can be reduced.
단계 263에 이어서는 단계 262를 진행하여 냉장실온도(TR)가 냉장실설정온도(TRS) 이하로 된 경우에 단계264를 진행한다. 즉 처음부터 냉동실은 불만족이고 냉장실은 만족상태에 있는 경우는 제8도의 (b)와 같은 형태로 운전되고, 냉동실과 냉장실 모두 불만족 상태에서 냉장실의 냉각에 의해 냉장실인 만족상태로 바뀐 경우에는, 제8도의 (a)에 도시한 바와 같이, 압축기와 함께 냉동실팬을 온시키고 냉장실팬을 오프시키는 단계264를 수행하는 것이다. 제8도의 (b)와 같은 상황은 외기온도가 낮은 경우(예를 들면 10℃이하)이거나 상온 이하인 경우에 냉동실온도가 냉장실온도보다 상대적으로 빨리 상승하여 발생할 수 있고, 냉동실의 사용빈도가 많은 경우에 발생할 수 있다.Step 263 is followed by step 262 where step 264 is performed when the refrigerator compartment temperature T R is equal to or lower than the refrigerator compartment set temperature T RS . That is, if the freezer is unsatisfactory and the refrigerating chamber is in a satisfactory state from the beginning, it operates in the form as shown in FIG. 8 (b). As shown in (a) of FIG. 8, step 264 of turning on the freezer compartment fan and turning off the refrigerating compartment fan together with the compressor is performed. The situation as shown in (b) of FIG. 8 may occur when the freezer temperature rises relatively faster than the freezer temperature when the outside air temperature is low (for example, 10 ° C. or lower) or below the room temperature, and when the freezer is frequently used. Can occur.
한편, 단계264에 이어서 냉동실온도(TF)와 냉장실설정온도(TRS)를 비교한다(단계265), 단계265에서 냉동실온도(TF)가 냉동실설정온도(TFS)보다 높은 경우에 단계264로 되돌아가고, 냉동실온도(TF)와 냉동실설정온도(TFS) 이하인 경우에 압축기와 냉장실팬, 냉동실팬을 오프시킨다(단계266). 또한 단계261에서 냉동실온도(TF)가 냉동실설정온도(TFS) 이하인 경우에 압축기와 냉동실팬 및 냉장실팬을 모두 오프시키는 단계 266을 진행한다.On the other hand, in step 264, the freezer compartment temperature T F and the refrigerator compartment set temperature T RS are compared (step 265), and in step 265, if the freezer compartment temperature T F is higher than the freezer compartment set temperature T FS . Returning to 264, the compressor, the refrigerator compartment fan, and the freezer compartment fan are turned off when the freezer compartment temperature T F and the freezer compartment set temperature T FS are lower (step 266). In operation 261, when the freezer compartment temperature T F is less than or equal to the freezer compartment set temperature T FS , step 266 is performed in which both the compressor, the freezer compartment fan, and the refrigerating compartment fan are turned off.
단계266에 이어서 제1냉각기표면온도(TES)가 0℃ 보다 높은가를 비교한다(단계267). 단계267에서 제1냉각기표면온도(TES)가 0℃ 이하인 경우에는 압축기와 냉동실팬을 오프시키고 냉장실팬만을 온시켜(단계268) 냉장실증발기인 제1냉각기의 제상을 수행한다. 이러한 제상은 전술한 실시예들과 동일하다.Step 266 is then compared to see if the first cooler surface temperature T ES is higher than 0 ° C. (step 267). When the first cooler surface temperature T ES is 0 ° C. or lower in step 267, the compressor and the freezer compartment fan are turned off and only the refrigerating compartment fan is turned on (step 268) to perform defrosting of the first cooler which is a refrigerator compartment evaporator. This defrost is the same as the above-described embodiments.
이상과 같이, 주로 냉동실과 냉장실 모두가 불만족 상태에 있는 경우 냉장실을 먼저 냉각하고 냉장실이 설정온도 이하로 냉각된 경우에 냉동실을 냉각하는 형태를 취함으로써 에너지의 효율적인 사용으로 에너지소비를 줄일 수 있으며, 압축기와 함께 냉장실팬과 냉동실팬중 어느 하나만을 운전시킴으로써 압축기의 피크(peak)압력을 감소시켜 압축기의 효율을 향상시킬 수 있는 이점이 있다.As described above, when both the freezer compartment and the refrigerating compartment are in an unsatisfactory state, the refrigerating compartment is cooled first, and the freezer compartment is cooled when the refrigerating compartment is cooled below a set temperature, thereby reducing energy consumption by using energy efficiently. By operating only one of the refrigerator compartment fan and the freezer compartment together with the compressor, there is an advantage that the efficiency of the compressor can be improved by reducing the peak pressure of the compressor.
또한, 냉동실과 냉장실에 별도의 냉각기를 설치하고 냉동실과 냉장실을 별도로 제어하도록 구성함으로써 냉각기와 각 실의 온도차를 줄여 온도제어에 따른 열역학적 비가역손실을 감소시키고, 이에 따라 냉장고의 에너지효율을 향상시킨다.In addition, by installing a separate cooler in the freezer compartment and the refrigerating compartment and configured to control the freezer compartment and the refrigerating compartment separately, reducing the thermodynamic irreversible loss due to the temperature control by reducing the temperature difference between the cooler and each compartment, thereby improving the energy efficiency of the refrigerator.
또한, 냉장실의 냉기가 냉동실로 전달되지 못하므로 저장중인 음식물에서 나온 수분에 의한 냉각기의 착상량을 감소시켜 냉각기의 열전달효율을 향상시키고, 압축기 오프시에 냉장실의 공기를 이용하여 제상을 수행하고 제상과정에서 녹은 수분이 다시 냉장실을 순환하게 함으로써 냉장실을 고습화하여 냉장식품의 신선도를 장시간 유지시킬 수 있다.In addition, since the cold air of the refrigerating compartment is not delivered to the freezing compartment, the amount of water coolant from the food stored in the refrigerator decreases, thereby improving the heat transfer efficiency of the cooler, and defrosting and defrosting using the air in the refrigerating compartment when the compressor is turned off. Moisture melted in the process to circulate the refrigerating chamber to make the refrigerating chamber high humidity can maintain the freshness of the refrigerated food for a long time.
또한, 냉동실과 냉장실에 별도의 냉각시스템(냉각기와 냉각팬)을 설치하고 이들을 독립적으로 제어함으로써 각 실의 냉각속도를 극대화할 수 있다.In addition, by installing separate cooling systems (coolers and cooling fans) in the freezer compartment and the refrigerating compartment and controlling them independently, it is possible to maximize the cooling rate of each compartment.
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950012395A KR100189100B1 (en) | 1994-11-11 | 1995-05-18 | Refirgerator manufacturing method having high efficient multi evaporator cycle |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950012395A Division KR100189100B1 (en) | 1994-11-11 | 1995-05-18 | Refirgerator manufacturing method having high efficient multi evaporator cycle |
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| KR960044037A KR960044037A (en) | 1996-12-23 |
| KR0160435B1 true KR0160435B1 (en) | 1999-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019960003178A KR0160437B1 (en) | 1995-05-18 | 1996-02-09 | Refrigerator having high efficient cooling cycle and control method thereof |
| KR1019960003174A KR0160435B1 (en) | 1995-05-18 | 1996-02-09 | Refrigerator having high efficient cooling cycle and control method thereof |
| KR1019960003177A KR0160439B1 (en) | 1995-05-18 | 1996-02-09 | Refrigerator and control method of having high efficient cooling cycle |
| KR1019960003175A KR0160436B1 (en) | 1995-05-18 | 1996-02-09 | Refrigerator having high efficient cooling cycle and control method thereof |
| KR1019960003176A KR0160438B1 (en) | 1995-05-18 | 1996-02-09 | Refrigerator and control method of having high efficient cooling cycle |
| KR1019980035250A KR0182758B1 (en) | 1995-05-18 | 1998-08-28 | Control method of high efficiency multi evaporator cycle |
| KR1019980035251A KR0182759B1 (en) | 1995-05-18 | 1998-08-28 | Control method of high efficiency multi-evaporator cycle |
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| KR1019960003178A KR0160437B1 (en) | 1995-05-18 | 1996-02-09 | Refrigerator having high efficient cooling cycle and control method thereof |
Family Applications After (5)
| Application Number | Title | Priority Date | Filing Date |
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| KR1019960003177A KR0160439B1 (en) | 1995-05-18 | 1996-02-09 | Refrigerator and control method of having high efficient cooling cycle |
| KR1019960003175A KR0160436B1 (en) | 1995-05-18 | 1996-02-09 | Refrigerator having high efficient cooling cycle and control method thereof |
| KR1019960003176A KR0160438B1 (en) | 1995-05-18 | 1996-02-09 | Refrigerator and control method of having high efficient cooling cycle |
| KR1019980035250A KR0182758B1 (en) | 1995-05-18 | 1998-08-28 | Control method of high efficiency multi evaporator cycle |
| KR1019980035251A KR0182759B1 (en) | 1995-05-18 | 1998-08-28 | Control method of high efficiency multi-evaporator cycle |
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- 1996-02-09 KR KR1019960003174A patent/KR0160435B1/en not_active IP Right Cessation
- 1996-02-09 KR KR1019960003177A patent/KR0160439B1/en not_active IP Right Cessation
- 1996-02-09 KR KR1019960003175A patent/KR0160436B1/en not_active IP Right Cessation
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1998
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| KR0160436B1 (en) | 1999-01-15 |
| KR19990000001A (en) | 1999-01-01 |
| KR960044040A (en) | 1996-12-23 |
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| KR0160439B1 (en) | 1999-01-15 |
| KR960044041A (en) | 1996-12-23 |
| KR960044037A (en) | 1996-12-23 |
| KR0160437B1 (en) | 1999-01-15 |
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