KR100437808B1 - method for controling refrigerator with two evaporator - Google Patents
method for controling refrigerator with two evaporator Download PDFInfo
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- KR100437808B1 KR100437808B1 KR10-2002-0038702A KR20020038702A KR100437808B1 KR 100437808 B1 KR100437808 B1 KR 100437808B1 KR 20020038702 A KR20020038702 A KR 20020038702A KR 100437808 B1 KR100437808 B1 KR 100437808B1
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- evaporator
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/38—Rudders
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
본 발명은 2개의 증발기가 설치된 냉장고에 관한 것으로서, 더욱 상세하게는 저장실의 온도편차를 감소시키도록 하는 운전제어방법에 관한 것이다.The present invention relates to a refrigerator provided with two evaporators, and more particularly, to an operation control method for reducing the temperature deviation of the storage compartment.
이를 위해, 본 발명은 각 저장실에 증발기가 설치되는 2개의 증발기가 구비된 냉장고에 있어서, 압축기(4)를 정지시킬 때에, 상기 저장실 중에서 실내공간이 상대적으로 넓은 저장실의 증발기 측으로 삼방변(6)의 유로를 절환시킴으로써, 응축기(5)에서 응축된 냉매가 열용량이 큰 저장실에 설치된 증발기로 유입되도록 함을 특징으로 하는 2개의 증발기가 구비된 냉장고의 운전제어방법을 제공한다.To this end, the present invention is a refrigerator equipped with two evaporators in which each evaporator is installed in the refrigerator, when the compressor (4) is stopped, the three-way (6) to the evaporator side of the storage compartment in the storage space relatively large in the storage compartment By switching the flow path of the flow path, the refrigerant condensed in the condenser (5) provides an operation control method for a refrigerator equipped with two evaporators, characterized in that flow into the evaporator installed in a large storage capacity.
Description
본 발명은 2개의 증발기가 구비된 냉장고에 관한 것으로서, 더욱 상세하게는 저장실의 온도편차를 감소시키는 운전제어방법에 관한 것이다.The present invention relates to a refrigerator having two evaporators, and more particularly, to an operation control method for reducing a temperature deviation of a storage compartment.
일반적인 냉장고는 냉동실 및 냉장실에 음식물을 넣고 저온에서 장기간에 걸쳐 보관하는 장치이다.A general refrigerator is a device that puts food in a freezer and a refrigerating compartment and stores it at a low temperature for a long time.
상기 냉장고는 본체 하단부의 후방에 형성된 기계실에 압축기 및 응축기가 설치되며, 상기 냉동실의 후방에 증발기가 설치되는 구조를 갖는다.The refrigerator has a structure in which a compressor and a condenser are installed in the machine room formed at the rear of the lower end of the main body, and an evaporator is installed at the rear of the freezing compartment.
이러한 냉장고의 냉각시스템은 압축기에서 기체상태로 압축된 냉매는 응축기에서 응축된 후에 팽창장치를 거치면서 저온 저압의 기체상태로 되며, 이 기체상태의 냉매는 증발기에서 공기와 열교환된 다음에 압축기로 재유입되는 냉매사이클을 갖는다.The cooling system of such a refrigerator is a refrigerant compressed in a gaseous state in a compressor is condensed in the condenser and then passed through an expansion device to a low-temperature low-pressure gaseous state, the refrigerant is heat exchanged with air in the evaporator and then returned to the compressor It has a refrigerant cycle that flows in.
최근에는 압축기, 응축기, 삼방변 및 2개의 증발기로 구성된 냉각시스템을 갖는 냉장고가 생산되고 있다.Recently, refrigerators having a cooling system composed of a compressor, a condenser, three sides and two evaporators have been produced.
이 냉각시스템은 응축기에서 증발기 사이의 냉매배관을 분지되게 설치하고, 상기 분지된 부분에 삼방변을 설치한다.The cooling system installs a refrigerant pipe between the condenser and the evaporator in a branched manner, and installs a triangular valve in the branched portion.
상기 삼방변을 절환시킴으로써 상기 두 개의 증발기 중에서 어느 하나의 증발기로 냉매를 공급하도록 하며, 상기 증발기에 공급된 냉매는 공기와 열교환되면서 기체상태로 된 후에 압축기로 재유입되고, 상기 공기는 냉각되어 해당 실에 유입된다.By switching the three-sided to supply the refrigerant to any one of the two evaporators, the refrigerant supplied to the evaporator is exchanged with the air and then flows back into the compressor after the gaseous state, the air is cooled and the corresponding Flows into the thread.
이러한 냉각작용에 의해 각 저장실이 설정온도범위의 하한치까지 도달되면 상기 압축기의 운전을 정지시킨다.By the cooling action, the operation of the compressor is stopped when each storage chamber reaches the lower limit of the set temperature range.
이때, 상기 삼방변는 압축기가 정지될 때에 절환된 상태 그대로 정지되므로, 상기 응축기에서 응축된 고온 냉매가 증발기로 유입되어 두 저장실 중 하나의 저장실의 온도를 상승시키게 된다.At this time, since the three-way valve is stopped as it is switched when the compressor is stopped, the hot refrigerant condensed in the condenser is introduced into the evaporator to increase the temperature of one of the two storage chambers.
그러나, 상기 저장실 중에서 실내공간이 작게 형성된 저장실의 증발기에 고온 냉매가 유입되면, 상기 실내공간은 열용량이 작기때문에 실내온도가 빨리 상승되는 문제점이 있다.However, when a high temperature refrigerant flows into the evaporator of the storage compartment in which the interior space is small among the storage chambers, the indoor space has a problem that the indoor temperature rises quickly because the heat capacity is small.
이에 따라, 열용량이 작은 저장실에 저장되는 음식물은 신선한 상태로 저장할 수 있는 기간이 짧아지게 된다.Accordingly, the food stored in the storage compartment having a small heat capacity is shortened to be stored in a fresh state.
상기한 제반 문제점을 해결하기 위해, 본 발명은 압축기 정지시 각 저장실 중에서 넓은 공간을 가진 실내공간의 증발기 측으로 냉매 유로를 절환시킴으로써 이 저장실의 온도편차을 감소시키도록 함을 그 목적으로 한다.In order to solve the above-mentioned problems, an object of the present invention is to reduce the temperature deviation of the storage chamber by switching the refrigerant passage to the evaporator side of the indoor space having a large space among the storage chambers when the compressor is stopped.
도 1은 본 발명 2개의 증발기가 구비된 냉장고의 개략적인 구성을 나타낸 구성도.1 is a block diagram showing a schematic configuration of a refrigerator provided with two evaporators of the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1 : 제1저장실 2 : 제2저장실1: 1st storage room 2: 2nd storage room
3 : 기계실 4 : 압축기3: machine room 4: compressor
5 : 응축기 6 : 삼방변5: condenser 6: triangular
7 : 제1팽창장치 8 : 제1증발기7: first expansion device 8: first evaporator
9 : 제2팽창장치 10 : 제2증발기9: second expansion device 10: second evaporator
상기 목적을 달성하기 위해, 본 발명은 각 저장실에 증발기가 설치되는 2개의 증발기가 구비된 냉장고에 있어서, 압축기를 정지시킬 때에, 상기 저장실 중에서 실내공간이 상대적으로 넓은 저장실의 증발기 측으로 삼방변의 유로를 절환시킴으로써, 응축기에서 응축된 냉매가 열용량이 큰 저장실에 설치된 증발기로 유입되도록 함을 특징으로 하는 2개의 증발기가 구비된 냉장고의 운전제어방법을 제공한다.In order to achieve the above object, the present invention provides a refrigerator having two evaporators, each of which is equipped with an evaporator. When the compressor is stopped, the three-way flow path is directed toward the evaporator of the storage compartment in which the indoor space is relatively large. By switching, the refrigerant condensed in the condenser is introduced into the evaporator installed in the storage compartment having a large heat capacity provides an operation control method of the refrigerator with two evaporators.
이하, 본 발명 2개의 증발기가 구비된 냉장고에 관해 도 1을 참조하여 설명하기로 한다.Hereinafter, a refrigerator provided with two evaporators of the present invention will be described with reference to FIG. 1.
도 1은 본 발명 2개의 증발기가 구비된 냉장고의 개략적인 구성을 나타낸 구성도이다.1 is a configuration diagram showing a schematic configuration of a refrigerator provided with two evaporators of the present invention.
상기 냉장고의 냉각시스템은 압축기(4), 응축기(5), 삼방변(6)(three wayvalve), 2개의 팽창장치(7,9) 및 2개의 증발기(8,10)로 이루어진다.The refrigerator's cooling system consists of a compressor (4), a condenser (5), three way valves (6), two expansion devices (7, 9) and two evaporators (8, 10).
상기 냉장고는 상부에 제1저장실(1)이 구비되고, 상기 제1저장실(1) 하부에는 제2저장실(2)이 구비되며, 상기 제2저장실(2)의 하단부 후방에는 기계실(3)이 구비된다.The refrigerator includes a first storage chamber 1 at an upper portion, a second storage chamber 2 at a lower portion of the first storage chamber 1, and a machine room 3 at a rear of the lower end of the second storage chamber 2. It is provided.
상기 기계실(3)에는 압축기(4)와 응축기(5)가 설치되고, 상기 제1저장실(1)에는 제1팽창장치(7) 및 제1증발기(8)가 설치되며, 상기 제2저장실(2)에는 제2팽창장치(9) 및 제2증발기(10)가 설치된다. 이때, 상기 응축기(5)에 연결된 냉매배관은 각 증발기(8,10)로 연결되도록 분지되고, 상기 분지된 부분에는 삼방변(6)이 설치된다. 상기 각 증발기 근처에는 냉각팬(미도시)이 설치되어 냉기를 저장실 내로 송풍시킴으로써 저장실을 저온으로 유지시킨다.A compressor 4 and a condenser 5 are installed in the machine room 3, a first expansion device 7 and a first evaporator 8 are installed in the first storage room 1, and the second storage room ( 2), the second expansion device 9 and the second evaporator 10 are provided. At this time, the refrigerant pipe connected to the condenser (5) is branched to be connected to each evaporator (8, 10), the branched portion is provided with a three-way (6). A cooling fan (not shown) is installed near each evaporator to keep the storage compartment at a low temperature by blowing cold air into the storage compartment.
이러한 냉장고의 작용에 관해 설명하면 다음과 같다.Referring to the operation of the refrigerator as follows.
먼저, 상기 압축기(4)에서 고온 고압의 기체상태로 압축된 냉매는 응축기(5)에서 액체상태 혹은 2상 상태(two phase)의 냉매로 응축되고, 상기 응축된 냉매는 삼방변(6)을 절환시킴에 의해 제1팽창장치(7) 또는 제2팽창장치(9)를 거치면서 저온 저압의 기체상태의 냉매로 전환된다.First, the refrigerant compressed in a gaseous state of high temperature and high pressure in the compressor 4 is condensed into a liquid state or a two-phase refrigerant in the condenser 5, and the condensed refrigerant forms a three-way side 6. By switching, it is converted into a gaseous refrigerant of low temperature and low pressure while passing through the first expansion device 7 or the second expansion device 9.
이렇게 증발된 냉매는 제1증발기(8)나 제2증발기(10)를 거치면서 저장실의 공기와 열교환을 수행하고, 이에 따라 저온의 액체상태의 냉매로 전환된 다음에 압축기(4)로 재유입되는 냉매사이클을 수행한다.The refrigerant evaporated in this way undergoes heat exchange with the air in the storage chamber while passing through the first evaporator 8 or the second evaporator 10, and is thus converted into a refrigerant having a low temperature and then reflowed into the compressor 4. Perform a refrigerant cycle.
상기 증발기와 열교환된 공기는 증발팬에 의해 해당 저장실로 유입되어 냉각작용을 수행한다.The air exchanged with the evaporator is introduced into the storage chamber by the evaporation fan to perform a cooling operation.
한편, 상기 냉장고에는 냉각시스템을 전체적으로 제어하도록 제어부가 설치되며, 상기 제어부에는 각 저장실에 대응되도록 하한치 온도와 상한치 온도가 미리 설정된다.On the other hand, the refrigerator is provided with a control unit for controlling the cooling system as a whole, the control unit is set in advance the lower limit temperature and the upper limit temperature corresponding to each storage compartment.
따라서, 상기 2개의 저장실(1,2)이 모두 제어부에 미리 설정된 설정온도범위의 하한치 온도 이하로 낮아지면, 상기 압축기(4)는 제어부의 제어에 의해 정지된다.Therefore, when the two storage chambers 1 and 2 are both lowered below the lower limit temperature of the preset temperature range set in the controller, the compressor 4 is stopped by the control of the controller.
이때, 상기 압축기(4)가 정지되더라도 냉매배관에 아직 남아있는 압력에 의해 냉매가 유동되어, 상기 응축기(5)의 고온 냉매는 증발기로 유입되어 저장실의 온도를 상승시키게 된다. 따라서, 본 발명은 아래와 같은 운전제어방법을 제공하다.At this time, even when the compressor 4 is stopped, the refrigerant flows due to the pressure remaining in the refrigerant pipe, and the high temperature refrigerant of the condenser 5 flows into the evaporator to increase the temperature of the storage compartment. Accordingly, the present invention provides the following operation control method.
본 발명에 따른 운전제어방법은 압축기(4)를 정지시킬 때에, 상기 저장실 중에서 실내공간이 상대적으로 넓은 저장실의 증발기 측으로 삼방변(6)의 유로를 절환시킴으로써, 상기 응축기(5)에서 응축된 냉매가 열용량이 큰 저장실의 증발기로 유입되도록 한다.In the operation control method according to the present invention, when the compressor (4) is stopped, the refrigerant condensed in the condenser (5) by switching the flow path of the three sides (6) to the evaporator side of the storage compartment where the indoor space is relatively large in the storage compartment. Allow heat to flow into the evaporator of the storage room with large heat capacity.
즉, 도 1과 같은 냉장고 구조에서는, 상기 압축기(4) 정지시 상기 삼방변(6)을 제2증발기(10) 측으로 절환시킨다.That is, in the refrigerator structure of FIG. 1, when the compressor 4 is stopped, the three-way side 6 is switched to the second evaporator 10 side.
이때, 증발기에서 토출된 냉매는 넓은 저장실의 증발기에 유입되며, 상기 넓은 저장실은 열용량이 크기 때문에 냉매의 온기에 의해 온도상승폭이 상대적으로 작아진다.In this case, the refrigerant discharged from the evaporator flows into the evaporator of the wide storage chamber, and the wide storage chamber has a large heat capacity so that the temperature rise width is relatively small due to the warmth of the refrigerant.
만약, 상기 응축 냉매가 실내공간이 좁은 저장실 측의 증발기에 유입되면,상기 좁은 저장실의 온도는 넓은 저장실의 온도에 비해 상대적으로 빠르게 상승된다.If the condensed refrigerant flows into the evaporator on the side of the narrow storage compartment, the temperature of the narrow storage compartment rises relatively quickly compared to the temperature of the large storage compartment.
결국, 상기 넓은 저장실은 온도가 상승되기는 하지만 온도의 상승폭이 적게 되어 상기 저장실의 온도편차를 감소시킬 수 있다.As a result, the large storage compartment may increase in temperature but decrease in temperature, thereby reducing the temperature deviation of the storage compartment.
이상에서와 같이, 본 발명은 압축기 정지시 열용량이 큰 저장실의 증발기로 냉매를 유입시키도록 하여 저장실의 온도상승폭이 가능한 한 적어지도록 하는데 기술적 사상이 있다.As described above, the present invention has a technical idea to allow the refrigerant to flow into the evaporator of the storage compartment having a large heat capacity when the compressor is stopped so that the temperature rise of the storage compartment is as small as possible.
이상에서와 같이, 본 발명은 압축기 정지시 열용량이 큰 넓은 저장실의 증발기 측으로 삼방변의 유로를 절환시킴으로써 상기 넓은 저장실의 온도 상승폭을 감소시키도록 하였다.As described above, the present invention is to reduce the temperature rise of the large storage compartment by switching the three-way flow path to the evaporator side of the large storage compartment when the compressor is stopped.
이에 따라, 상기 냉장고에 보관된 음식물을 신선한 상태로 보다 오랫동안 보관할 수 있도록 하였다.Accordingly, the food stored in the refrigerator can be stored in a fresh state for a longer time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0038702A KR100437808B1 (en) | 2002-07-04 | 2002-07-04 | method for controling refrigerator with two evaporator |
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| KR10-2002-0038702A KR100437808B1 (en) | 2002-07-04 | 2002-07-04 | method for controling refrigerator with two evaporator |
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| KR20040003875A KR20040003875A (en) | 2004-01-13 |
| KR100437808B1 true KR100437808B1 (en) | 2004-06-30 |
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| KR10-2002-0038702A Expired - Fee Related KR100437808B1 (en) | 2002-07-04 | 2002-07-04 | method for controling refrigerator with two evaporator |
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| KR (1) | KR100437808B1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940020069A (en) * | 1993-02-25 | 1994-09-15 | 김광호 | Refrigerator that can change function of compartment and its control method |
| KR20010060559A (en) * | 1999-12-27 | 2001-07-07 | 박종섭 | Structure of a multi-bit flash memory cell and program method of using the same |
| KR20020085385A (en) * | 2001-05-08 | 2002-11-16 | 엘지전자 주식회사 | Refrigerating cycle for refrigerator and method for controlling the same |
| KR20040000961A (en) * | 2002-06-26 | 2004-01-07 | 엘지전자 주식회사 | method for controling refrigerator with two evaporator |
-
2002
- 2002-07-04 KR KR10-2002-0038702A patent/KR100437808B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940020069A (en) * | 1993-02-25 | 1994-09-15 | 김광호 | Refrigerator that can change function of compartment and its control method |
| KR20010060559A (en) * | 1999-12-27 | 2001-07-07 | 박종섭 | Structure of a multi-bit flash memory cell and program method of using the same |
| KR20020085385A (en) * | 2001-05-08 | 2002-11-16 | 엘지전자 주식회사 | Refrigerating cycle for refrigerator and method for controlling the same |
| KR20040000961A (en) * | 2002-06-26 | 2004-01-07 | 엘지전자 주식회사 | method for controling refrigerator with two evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040003875A (en) | 2004-01-13 |
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