KR19990048384A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
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- KR19990048384A KR19990048384A KR1019970067049A KR19970067049A KR19990048384A KR 19990048384 A KR19990048384 A KR 19990048384A KR 1019970067049 A KR1019970067049 A KR 1019970067049A KR 19970067049 A KR19970067049 A KR 19970067049A KR 19990048384 A KR19990048384 A KR 19990048384A
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- temperature
- compartment
- refrigerator
- freezer compartment
- cooler
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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
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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
- F25D2600/00—Control issues
- F25D2600/04—Controlling heat transfer
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/121—Sensors measuring the inside temperature of particular compartments
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
본 발명은 냉장고에 관한 것으로서, 더욱 상세하게는 냉장고의 가동시 가동소음을 저감시킬 수 있음은 물론 냉동 및 냉장효율을 증대시킬 수 있는 냉장고의 실내온도 제어방법에 관한 것이다.The present invention relates to a refrigerator. More particularly, the present invention relates to a method for controlling a room temperature of a refrigerator that can reduce operating noise when the refrigerator operates, and can increase freezing and refrigerating efficiency.
이를 위한 본 발명은 압축기, 응축기, 모세관, 냉동실용 냉각기, 냉장실용 냉각기, 송풍팬 등을 구비한 냉장고에 있어서; 상기 냉동실용 냉각기(10)와 냉장실용 냉각기(20)에는 항상 냉매가 순환되도록 냉매관(6)을 병렬로 연결하고, 냉동실(1)과 냉장실(2)내의 설정온도와 현재 실내온도와의 차이가 클때에는 송풍팬(14)(24)의 회전속도를 가속하여 냉기순환력을 강화하고, 반대로 각 실내의 설정온도와 현재 실내온도와의 차이가 작을때에는 송풍팬(14)(24)의 회전속도를 감속하여 냉기순환력이 약화되도록함에 따라 각 실내의 온도변화에 의해 각 송풍팬의 회전속도를 가감하여 냉동실(1)과 냉장실(2)내의 온도를 각기 제어하며, 압축기(3)는 냉동실(1)의 온도가 설정온도보다 높을 경우에는 운전되도록 하고 냉동실(1)의 설정온도보다 낮을 경우에는 정지되도록 한 것이다.The present invention for this purpose is a refrigerator provided with a compressor, a condenser, a capillary tube, a freezer cooler, a refrigerator cooler, a blower fan; A refrigerant pipe 6 is connected in parallel to the freezer cooler 10 and the refrigerating compartment cooler 20 so that refrigerant is always circulated, and a difference between the set temperature in the freezer compartment 1 and the refrigerating compartment 2 and the current room temperature. When it is large, it accelerates the rotational speed of the blower fans 14 and 24 to strengthen the cold air circulation force. On the contrary, when the difference between the set temperature of each room and the present room temperature is small, the rotation of the blower fans 14 and 24 is rotated. By slowing down the speed and decreasing the cold air circulation force, the rotational speed of each blower fan is decreased by controlling the temperature of each room to control the temperature in the freezer compartment 1 and the refrigerating compartment 2, respectively, and the compressor 3 controls the freezer compartment. When the temperature of (1) is higher than the set temperature, the operation is to be started, and when it is lower than the set temperature of the freezer compartment (1) to stop.
Description
본 발명은 냉장고 분야에 관한 것으로서, 더욱 상세하게는 냉장고의 실내온도 제어방법에 관한 것이다.The present invention relates to the field of refrigerators, and more particularly, to a method for controlling room temperature of a refrigerator.
일반적으로 냉장고는 냉매를 압축 ― 응축 ― 팽창 ― 증발시키는 냉동사이클을 반복함에 따라 고내를 저온화시켜 음식물을 장기간동안 신선하게 보관할 수 있도록 한 냉동 냉장장치로서, 요식업소뿐만 아니라 일반가정에서도 거의 필수적으로 사용되고 있는 일반화된 가전제품이다.In general, a refrigerator is a refrigeration refrigerating device that allows food to be kept fresh for a long period of time by reducing the temperature of the refrigerator by repeating a refrigeration cycle of compressing, condensing, expanding and evaporating refrigerant. It is a generalized home appliance used.
상기 냉장고의 기본적인 구성을 개략적으로 설명하면 다음과 같다.The basic configuration of the refrigerator will be described below.
다만, 설명과정에서 포함되는 구성요소들은 일반적으로 공지된 사항이므로 도시는 생략하기로 한다.However, components included in the description process are generally known, and thus the illustration is omitted.
냉장고는 저온 저압상태의 가스냉매를 고온 고압상태로 승온 승압시키는 압축기(Compressor)와, 상기 압축기로부터 유입되는 고온 고압가스 상태의 냉매를 냉각 응축하여 온도 40℃, 압력 9atm의 액체 냉매로 변환시키는 응축기(Condenser)와, 다른 부분의 냉매관 직경에 비해 축관되어 유입되는 냉매를 감압시키는 모세관(Capillary tube)과, 상기 모세관을 통한 냉매를 저온 저압 상태로 증발하면서 이에 비해 상대적으로 고온인 고내의 공기와 열교환되어 고내를 저온화시키는 증발기(Evaporator)등으로 구성되어 있다.The refrigerator includes a compressor for raising and lowering the gas refrigerant in a low temperature and low pressure state to a high temperature and high pressure state, and a condenser for cooling and condensing the refrigerant in the high temperature and high pressure gas state introduced from the compressor to a liquid refrigerant having a temperature of 40 ° C. and a pressure of 9 atm. (Condenser), a capillary tube for depressurizing the refrigerant introduced through the condenser compared to the diameter of the refrigerant pipe of the other portion, and the air in the chamber having a relatively high temperature while evaporating the refrigerant through the capillary at low temperature and low pressure. It consists of an evaporator which heat-exchanges and lowers the inside of a refrigerator.
상기의 냉동 및 냉장시스템에 의해 운영되는 통상적인 냉장고의 구조는 비교적 저온의 음식물을 보관하기 위한 냉동실과, 상기 냉동실의 보관온도에 비해 고온의 음식물을 보관하기 위한 냉장실로 구분되어 있으며, 냉동실의 뒤쪽에는 증발기(이하 “냉각기”라 함)가 설치되어 있다.The structure of a conventional refrigerator operated by the freezing and refrigerating system is divided into a freezer compartment for storing food at a relatively low temperature and a cold compartment for storing food at a higher temperature than the storage temperature of the freezer compartment. The evaporator (hereinafter referred to as the "cooler") is installed.
따라서, 냉각기에 의해 냉동실측에서 열교환된 저온냉기는 냉동실과 냉장실로 동시에 공급됨과 아울러 음식물에 의해 고온으로 열교환된 냉장실의 냉기는 냉각기측으로 유도되어 저온으로 열교환되는 순환과정을 반복하게 된다.Therefore, the low temperature cold air heat exchanged from the freezer compartment side by the cooler is simultaneously supplied to the freezer compartment and the refrigerating compartment, and the cold air of the refrigerating compartment heat exchanged to the high temperature by food is guided to the cooler side to repeat the circulation process of heat exchange at low temperature.
그러나, 상기와 같이 하나의 냉각기에 의해 운영되는 냉장고는 열교환되는 과정에서 냉장실측 냉기와 냉동실측 냉기가 혼합됨으로써 냉장실의 음식냄새가 냉동실로 유입됨은 물론, 하나의 냉각기에 의해 냉동실과 냉장실의 냉각을 동시에 실행함으로써 냉동 및 냉장효율이 떨어질 수밖에 없었다.However, as described above, the refrigerator operated by one cooler is mixed with the refrigerator compartment cold side and the freezer compartment cold air during the heat exchange process, and the food smell of the refrigerator compartment flows into the freezer compartment, as well as cooling the freezer compartment and the refrigerator compartment by one cooler. At the same time, the refrigeration and refrigeration efficiency was deteriorated.
이에 따라, 냉동 및 냉장효율을 극대화하기 위해 도 1에서와 같이 냉동실(1)과 냉장실(2)에 냉동실용 냉각기(10)와 냉장실측 냉각기(20)를 각각 설치하여 각기 분할 냉각토록 한 냉장고가 개발되고 있는데, 이러한 냉장고는 냉매의 순환방식에 따라 직렬식과 병렬식으로 대별된다.Accordingly, in order to maximize the freezing and refrigerating efficiency, as shown in FIG. 1, the refrigerator having the freezer compartment cooler 10 and the refrigerator compartment side cooler 20 is respectively installed in the freezer compartment 1 and the refrigerator compartment 2 so as to separately cool the refrigerators. The refrigerator is classified into a series and a parallel type according to the refrigerant circulation method.
직렬식은 냉매의 흐름을 제어하는 밸브를 사용하지 않고 압축기 → 응축기 → 모세관 → 냉동실용 냉각기 → 냉장실측 냉각기를 경유하여 다시 압축기(3)로 유입되는 순환방식이다.The tandem type is a circulation system that flows back into the compressor 3 via a compressor → condenser → capillary → freezer cooler → refrigerator compartment cooler without using a valve to control the flow of the refrigerant.
반면, 병렬식은 도 1에서와 같이 냉동실(1)과 냉장실(2)을 각각 냉각하는 방식은 직렬식과 동일하지만 냉동실용 냉각기(10)로 냉매를 공급하기 위한 냉매관(11)과, 냉장실측 냉각기(20)로 냉매를 공급하기 위한 냉매관(21)을 별도로 구성하고, 각각의 냉매관(11)(21)에는 냉매의 흐름을 제어하는 냉동실, 냉장실측 솔레노이드 밸브(전자석의 흡인력을 이용하여 기름 또는 공기의 흐름을 전환하는 방향전환 밸브)(12)(22)를 설치하여 냉동실(1)을 냉각할때에는 냉장실(2)로 유입되는 냉매를 차단하고, 냉장실(2)을 냉각할때에는 냉동실(1)로 유입되는 냉매를 차단하여 각 실을 별개로 운영하는 방식이다.On the other hand, in the parallel type, as shown in FIG. 1, the freezing compartment 1 and the refrigerating compartment 2 are respectively cooled in the same way as the series type, but the refrigerant pipe 11 for supplying the refrigerant to the freezer compartment cooler 10 and the refrigerator compartment side cooler. Refrigerant pipe 21 for supplying a coolant to 20 is configured separately, and each of the coolant pipes 11 and 21 has a freezing compartment and a refrigerating compartment side solenoid valve (controlled by oil of electromagnets) to control the flow of the coolant. Alternatively, a direction change valve (12) and (22) for switching the flow of air are installed to cool the freezer compartment (1) to block the refrigerant flowing into the refrigerating compartment (2), and to cool the freezer compartment (2) 1) Blocks the refrigerant flowing into 1) and operates each room separately.
즉, 냉동실(1)의 냉각시에는 압축기(3) → 응축기(4) → 냉동실측 솔레노이드 밸브(12) → 모세관(13) → 냉동실용 냉각기(10)의 순으로 냉매가 흐르게 되며, 냉장실(2)의 냉각시에는 압축기(3) → 응축기(4) → 냉장실측 솔레노이드 밸브(22) → 모세관(23) → 냉장실용 냉각기(20)의 순으로 냉매가 흐르게 된다.That is, when the freezing chamber 1 is cooled, the refrigerant flows in the order of the compressor 3, the condenser 4, the freezing chamber side solenoid valve 12, the capillary tube 13, and the freezing chamber cooler 10. ), The refrigerant flows in the order of the compressor (3) → condenser (4) → refrigerating chamber side solenoid valve (22) → capillary tube (23) → refrigerating chamber cooler (20).
한편, 상기의 냉동실(1)에 비치된 냉동실용 냉각기(10)가 가동하게 되면 냉동실 팬(14)만이 회전하여 열교환된 저온의 냉기를 실내로 순환시켜주고, 냉장실(2)에 비치된 냉장실측 냉각기(20)가 가동하게 되면 냉장실 팬(24)만이 회전하여 열교환된 저온의 냉기를 순환시켜주게 된다.On the other hand, when the freezer compartment cooler 10 provided in the freezer compartment 1 operates, only the freezer compartment fan 14 rotates to circulate the cold heat exchanged to the room, and the refrigerating compartment side provided in the refrigerating compartment 2. When the cooler 20 operates, only the refrigerating chamber fan 24 rotates to circulate the cold heat exchanged with the low temperature.
도 1에서 도면부호 15는 냉동실 운전중 냉장실 운전으로 전환할 경우와 냉장실 운전중 냉동실 운전으로 전환하는 경우에는 냉동실용 냉각기(20)의 증발압력이 낮아지게 되므로 냉장실(2)쪽으로 냉매가 역류되는 것을 방지하기 위한 역지밸브를 나타낸 것이다.In FIG. 1, reference numeral 15 denotes that the refrigerant flows back toward the refrigerating compartment 2 since the evaporation pressure of the freezer compartment cooler 20 is lowered when switching to the refrigerating compartment operation and the refrigerating compartment operation during the refrigerating compartment operation. It shows the check valve to prevent.
그러나 병렬식은 냉동실(1)과 냉장실(2)로 흐르는 냉매흐름을 제어하는 솔레노이드 밸브(12)(22)의 설치가 필수적이었으므로 이에 따른 밸브소음이 발생하여 압축소음과 더불어 냉장고의 소음을 가중시키는 문제점이 있었다.However, since the parallel type required the installation of solenoid valves 12 and 22 for controlling the refrigerant flow flowing into the freezing compartment 1 and the refrigerating compartment 2, the valve noise was generated accordingly to increase the noise of the refrigerator along with the compression noise. There was this.
또한, 냉동실 팬(14)과 냉장실 팬(24)은 축류팬 또는 사류팬을 사용함으로써 실내의 부하정도에 따라 소음이 크게 발생할 뿐만아니라, 상기 팬의 형태상 냉기가 일방향으로 집중되어 불균일한 냉각이 이루어지는 문제점이 있었다.In addition, the freezing chamber fan 14 and the refrigerating chamber fan 24 use the axial flow fan or the four-flow fan, so that the noise is greatly generated according to the degree of load in the room, and in the form of the fan, cold air is concentrated in one direction, resulting in uneven cooling. There was a problem.
또한, 병렬방식은 솔레노이드 밸브(12)(22)의 사용이 빈번할 수밖에 없으므로 장기간 사용시에는 밸브의 노화로 인하여 냉기순환의 신뢰성을 저하시키는 문제가 발생하게 된다.In addition, in the parallel method, since the use of the solenoid valves 12 and 22 is frequently used, there is a problem of deteriorating reliability of the cold air circulation due to aging of the valve during long-term use.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출한 것으로서, 그 목적은 직렬식과 병렬식을 절충한 형태로하여 밸브사용을 배제하는 대신 송풍팬의 회전속도를 가감하여 고내온도를 제어하기 위한 것이다.The present invention has been made to solve the conventional problems as described above, its purpose is to control the high temperature by adding or subtracting the rotational speed of the blowing fan instead of eliminating the use of the valve in the form of a compromise between the series and parallel type will be.
상기의 목적을 달성하기 위한 본 발명은 압축기, 응축기, 모세관, 냉동실용 냉각기, 냉장실용 냉각기, 송풍팬 등을 구비한 냉장고에 있어서;The present invention for achieving the above object is a refrigerator provided with a compressor, a condenser, a capillary tube, a freezer cooler, a refrigerator cooler, a blowing fan and the like;
상기 냉동실용 냉각기와 냉장실용 냉각기에는 항상 냉매가 순환되도록 냉매관을 병렬로 연결하고, 냉동실과 냉장실내의 설정온도와 현재 실내온도와의 차이가 클때에는 송풍팬의 회전속도를 가속하여 냉기순환력을 강화하고, 반대로 각 실내의 설정온도와 현재 실내온도와의 차이가 작을때에는 송풍팬의 회전속도를 감속하여 냉기순환력을 약화되도록 함에 따라 각 실내의 온도변화에 의해 각 송풍팬의 회전속도를 가감하여 냉동실과 냉장실내의 온도를 각기 제어하며, 압축기는 냉동실의 온도가 설정온도보다 높을 경우에는 운전되도록 하고 냉동실의 설정온도보다 낮을 경우에는 정지되도록 한 것을 특징으로 하는 냉장고를 제공함에 있다.The refrigerant pipes are connected in parallel so that refrigerant is always circulated in the freezer compartment cooler and the refrigerator compartment cooler, and when the difference between the set temperature in the freezer compartment and the refrigerating compartment and the current room temperature is large, the rotation speed of the blower fan is accelerated and the cold air circulation force is increased. On the contrary, when the difference between the set temperature of each room and the current room temperature is small, the rotation speed of the blower fan is slowed down so that the cold air circulation force is weakened. The temperature control of the freezer compartment and the refrigerating compartment is controlled separately, and the compressor is operated when the temperature of the freezer compartment is higher than the set temperature, and when the temperature is lower than the set temperature of the freezer compartment, the refrigerator is provided.
도 1은 냉동실용과 냉장실용 냉각기가 병렬방식으로 설치된 기존 냉장고의 개략적인 구성도1 is a schematic configuration diagram of an existing refrigerator in which a freezer compartment and a refrigerator compartment cooler are installed in a parallel manner.
도 2는 냉동실과 냉장실에 변속형 크로스 플로우 팬을 각각 적용한 본 발명 냉장고의 개략적인 구성도2 is a schematic configuration diagram of a refrigerator of the present invention to which a variable speed cross flow fan is respectively applied to a freezer compartment and a refrigerating compartment;
도 3a는 본 발명에 있어서 냉동실측 온도제어를 위한 흐름도Figure 3a is a flow chart for the freezer compartment temperature control in the present invention
도 3b는 본 발명에 있어서 냉장실측 온도제어를 위한 흐름도Figure 3b is a flow chart for refrigerating room temperature control in the present invention
도 4는 축류팬과 크로스 플로우 팬의 압력과 풍량관계를 대비한 그래프4 is a graph comparing the relationship between the pressure and the air flow rate between the axial flow fan and the cross flow fan;
도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings
5 : 가변속 모터(BLDC Motor) 6 : 냉매관5: BLDC Motor 6: Refrigerant Pipe
10 : 냉동실용 냉각기 20 : 냉장실측 냉각기10: freezer compartment cooler 20: refrigerator compartment side cooler
14 : 냉동실측 송풍팬 24 : 냉장실측 송풍팬14: freezing chamber side blowing fan 24: cold compartment side blowing fan
이하, 첨부된 도 2와 도 3a, 3b를 참조하여 본 발명 냉장고의 실내온도 제어방법을 상세히 설명하면 다음과 같다.Hereinafter, a method for controlling room temperature of the refrigerator according to the present invention will be described in detail with reference to FIGS. 2, 3A, and 3B.
압축기(3), 응축기(4), 냉동실측 모세관(13), 냉장실측 모세관(23), 냉동실용 냉각기(10), 냉장실용 냉각기(20)등을 구비한 냉장고에 있어서;A refrigerator provided with a compressor (3), a condenser (4), a freezer compartment side capillary tube (13), a refrigerator compartment side capillary tube (23), a freezer compartment cooler (10), a refrigerator compartment cooler (20), and the like;
본 발명의 냉장고는 냉동실(1)과 냉장실(2)에 냉각기(10)(20)를 각각 설치하고, 이 냉각기는 냉매관(6)에 의해 병렬로 연결되어 있다.In the refrigerator of the present invention, coolers 10 and 20 are respectively provided in the freezing chamber 1 and the refrigerating chamber 2, and the coolers are connected in parallel by the refrigerant pipes 6.
상기 병렬형은 종래의 직렬형과 병렬형을 절충한 방식으로 종래의 병렬형 구조에서 솔레노이드 밸브와 역지밸브를 제거한 형태이다.The parallel type is a form in which the solenoid valve and the check valve are removed from the conventional parallel type structure in a manner that is a compromise between the conventional series type and the parallel type.
상기 냉동실(1)과 냉장실(2)에는 각 냉각기(10)(20)에 의해 열교환된 냉기를 실내로 강제순환시켜주기 위한 냉동실측 송풍팬(14)와 냉장실측 송풍팬(24)이 각각 구비되어 있다.The freezing compartment 1 and the refrigerating compartment 2 are each provided with a freezing compartment side blower fan 14 and a refrigerating compartment side blower fan 24 for forcibly circulating cold air heat-exchanged by the respective coolers 10 and 20. It is.
상기의 각 송풍팬은 축류팬이나 사류팬을 적용해도 무방하지만 이들 팬에 비해 풍량이 많고 소음이 적은 크로스 플로우 팬(Cross flow fan)을 적용하는 것이 가장 바람직하며, 상기 크로스 플로우팬에 회전력을 제공하는 구동모터는 실내온도에 따라 속도가 가변될 수 있도록 가변속 모터(BLDC Motor)를 적용하였다.Each blower fan may be an axial fan or a swirl fan, but it is most preferable to apply a cross flow fan having a lot of air volume and less noise than these fans, and providing rotational force to the cross flow fan. The drive motor is a variable speed motor (BLDC Motor) is applied so that the speed can be changed according to the room temperature.
상기 가변속 모터(5)는 냉동실(1)과 냉장실(2)의 내부온도를 감지하기 위한 온도센서(도시는 생략함)에 연결되어 설정온도와 비교하여 현재 실내온도가 가감됨에 따라 속도가 가변되므로 송풍량이 제어된다.The variable speed motor 5 is connected to a temperature sensor (not shown) for detecting the internal temperature of the freezer compartment 1 and the refrigerating compartment 2, and thus the speed is variable as the current room temperature is added to or decreased from the set temperature. Blowing air volume is controlled.
즉, 냉동실(1)의 온도제어는 냉동실의 설정온도와 현재 냉동실온도와 비교하여 그 차이가 클때에는 냉동실용 송풍팬(14)의 회전속도를 가속하여 냉기송풍력을 강화시키고, 반대로 냉동실의 설정온도와 현재 냉동실내의 온도차가 작을때에는 냉동실용 송풍팬(14)의 회전속도를 감속하여 냉기송풍력이 약화되도록 한다.That is, the temperature control of the freezer compartment 1, when the difference between the set temperature of the freezer compartment and the current freezer compartment is large, accelerates the rotational speed of the blower fan 14 for the freezer compartment to strengthen the cold air blowing force, and conversely, setting the freezer compartment. When the temperature and the current difference in the freezer compartment is small, the rotational speed of the freezer blowing fan 14 is decelerated so that the cold air blowing force is weakened.
마찬가지로, 냉장실(2)의 온도제어는 냉장실의 설정온도가 현재 냉장실온도와 비교하여 그 차이가 클때에는 냉장실용 송풍팬(24)의 회전속도를 가속하여 냉기송풍력을 강화시키고, 반대로 냉장실(2)의 성정온도와 현재 냉장실내의 온도차가 작을때에는 냉동실용 송풍팬(24)의 회전속도를 감속하여 냉기송풍력이 약화되도록 한다.Similarly, the temperature control of the refrigerating compartment 2 accelerates the rotational speed of the refrigerating compartment blowing fan 24 when the set temperature of the refrigerating compartment is larger than the current refrigerating compartment temperature, thereby reinforcing the cold air blowing force. When the temperature difference between the current temperature and the current temperature in the refrigerating chamber is small, the rotational speed of the blower fan 24 for the freezer compartment is decelerated to weaken the cold air blowing force.
도 3a와 도 3b를 참조하여 냉동실과 냉장실의 온도를 제어하기 위한 과정을 상세히 설명하면 다음과 같다.Referring to Figures 3a and 3b it will be described in detail the process for controlling the temperature of the freezer compartment and the refrigerator compartment.
먼저, 냉동실(1)과 냉장실(2)의 제어는 별도로 제어되므로 각각 나누어 설명하기로 한다.First, since the control of the freezer compartment 1 and the refrigerating compartment 2 is controlled separately, it will be described separately.
우선, 냉동실(1)의 온도제어는 도 3a에서와 같이 온도센서(도시는 생략함)에 의해 냉동실(1)내의 온도를 센싱한 결과 설정온도보다 높은 경우에는 압축기(3)가 가동됨과 동시에 별도의 구동수단에 의해 냉동실측 송풍팬(14)이 가동되어 냉매순환이 이루어지고 냉동실용 냉각기(10)로부터 열교환된 냉기를 실내로 순환시켜주는 단계가 행해진다.First, the temperature control of the freezer compartment 1 is a temperature sensor (not shown) as shown in FIG. 3A, and when the temperature in the freezer compartment 1 is higher than the set temperature as a result of sensing the temperature in the freezer compartment 1, the compressor 3 is operated simultaneously and separately. The freezing chamber side blower fan 14 is driven by the driving means to circulate the refrigerant and circulates the cold air exchanged from the freezer compartment cooler 10 to the room.
다음, 온도센서에 의해 냉동실(1)내의 온도를 감지한 결과 설정온도에 미달된 경우 냉동실(1)의 설정온도와 현재 냉동실내의 온도차에 비례하여 냉동실측 송풍팬(14)의 회전속도가 가감되면서 실내온도를 조절하는 단계가 행해진다.Next, when the temperature inside the freezer compartment 1 is detected by a temperature sensor, the rotation speed of the freezer compartment blower fan 14 is increased or decreased in proportion to the set temperature of the freezer compartment 1 and the temperature difference in the current freezer compartment. The step of adjusting the room temperature is performed.
상기의 단계에서 냉동실(1)의 설정온도와 현재 냉동실(1)의 온도차이가 크다면 냉동실측 송풍팬(14)의 회전속도를 빨리하여 더 많은 냉기가 순환되도록 함으로써 실내온도를 낮추고, 반면에 냉동실(1)의 설정온도와 현재 냉동실(1)의 온도차이가 작다면 냉동실측 송풍팬(14)의 회전속도를 늦추어 냉기량이 적게 순환되도록 함으로써 실내온도의 하강속도를 늦추게 된다.If the temperature difference between the set temperature of the freezer compartment 1 and the current freezer compartment 1 is large in the above step, the room temperature is lowered by increasing the rotational speed of the freezer compartment blower fan 14 to allow more cold air to circulate. If the temperature difference between the set temperature of the freezer compartment 1 and the current freezer compartment 1 is small, the rate of rotation of the freezer compartment side blowing fan 14 is slowed so that the amount of cold air is circulated to decrease the rate of decrease of the room temperature.
다음, 온도센서에 의해 냉동실(1)내의 온도를 감지한 결과 설정온도이하로 내려간 경우에는 압축기(3)와 냉동실측 송풍팬(14)의 가동을 중단하여 냉매순환을 정지시킴은 물론 냉기순환이 이루어지지 않도록 하는 단계가 순차적으로 이루어지게 된다.Next, when the temperature in the freezer compartment 1 is sensed by the temperature sensor and the temperature is lower than the set temperature, the compressor 3 and the freezer side blower fan 14 stop operation of the refrigerant cycle, as well as the cold air circulation. Steps that do not occur are made sequentially.
한편, 냉장실(2)의 온도제어는 도 3b에서와 같이 온도센서(도시는 생략함)에 의해 냉장실(2)의 온도를 감지한 결과 설정된 온도보다 높을 경우에는 별도의 구동수단(도시는 생략함)에 의해 냉장실측 송풍팬(24)이 가동되어 냉장실측 냉각기(20)에 의해 열교환된 냉기를 실내로 순환시켜주는 단계가 행해진다.On the other hand, the temperature control of the refrigerating chamber (2) is a separate drive means (not shown) when the temperature is higher than the set temperature as a result of sensing the temperature of the refrigerating chamber (2) by a temperature sensor (not shown) as shown in Figure 3b The refrigeration chamber side blowing fan 24 is operated to circulate the cold air heat-exchanged by the refrigerating chamber side cooler 20 to the room.
다음, 가동중인 냉장실을 온도센서에 의해 센싱한 결과 냉장실(2)내의 설정온도와 현재 냉장실내의 온도차에 비례하여 냉장실측 송풍팬의 회전속도가 가감되면서 실내온도를 조절하는 단계가 행해진다.Next, as a result of sensing the operation of the refrigerating compartment by a temperature sensor, a step of adjusting the room temperature is performed while the rotational speed of the refrigerating compartment side blowing fan is decremented in proportion to the set temperature in the refrigerating compartment 2 and the temperature difference in the current refrigerating compartment.
다음, 온도센서에 의해 냉장실(2)내의 온도를 감지한 결과 냉장실내의 온도가 설정온도보다 낮아질 경우에는 냉장실측 송풍팬의 가동을 중단하여 냉기순환이 이루어지지 않도록 하는 단계가 순차적으로 이루어지게 된다.Next, when the temperature in the refrigerating compartment 2 is sensed by the temperature sensor, when the temperature in the refrigerating compartment becomes lower than the set temperature, the steps to stop the cold air circulation by halting the operation of the cooling fan side fan are sequentially performed. .
상기 단계의 진행중에 냉동실(1)의 온도가 설정온도보다 낮아져 냉동실용 냉각기(10)와 압축기(3)의 가동이 중지되면 냉장실(2)에도 냉매의 흐름이 정지되므로 열교환작용이 저하되기는 하지만 냉장실내의 온도는 통상 4℃이하를 유지하면 되므로 냉매의 흐름이 정체된다 하더라도 냉장실의 온도유지에는 큰 지장이 없게 된다.If the temperature of the freezer compartment 1 is lower than the set temperature during the operation of the step, and the operation of the freezer compartment cooler 10 and the compressor 3 is stopped, the flow of the refrigerant is also stopped in the refrigerator compartment 2, but the heat exchange action is lowered. Since the temperature of the room is usually maintained at 4 ° C. or lower, even if the flow of the refrigerant is stagnant, there is no major problem in maintaining the temperature of the refrigerating chamber.
한편, 도 4는 기존의 축류형 또는 사류형 송풍팬과 크로스 플로우 팬의 압력과 풍량과의 관계곡선을 도시한 그래프로서, 상기한 그래프에서와 같이 기존의 축류팬의 운전점(C') 보다는 크로스 플로우 팬의 운전점(C)이 동일한 회전수에 대비하여 풍량이 증가함을 알 수 있다.On the other hand, Figure 4 is a graph showing the relationship between the pressure and the air flow rate of the conventional axial or cross-flow fan and the cross flow fan, as shown in the above graph than the operating point (C ') of the conventional axial fan It can be seen that the operating amount C of the cross flow fan increases with respect to the same rotational speed.
따라서, 크로스 플로우 팬을 적용할 경우 적은 회전수로도 풍량을 증가시킬 수 있으므로 냉동 또는 냉장효율을 증대시킬 수 있음은 물론, 소음을 현저히 감소시킬 수 있는 장점이 있다.Therefore, when the cross flow fan is applied, the amount of air can be increased even at a low rotational speed, thereby increasing the freezing or refrigerating efficiency, as well as reducing the noise significantly.
이상에서와 같은 냉장고의 실내온도 제어방법은 기존의 구조와 비교하여 간단한 구성으로 되어 있으므로 생산원가를 절감할 수 있음은 물론, 소음의 저감과 냉동 및 냉장효율을 증대시킬 수 있으므로 기기의 신뢰성을 향상시키는 효과가 있다.As described above, the indoor temperature control method of the refrigerator has a simple configuration compared to the existing structure, which can reduce production costs, and can also reduce noise and increase freezing and refrigerating efficiency, thereby improving the reliability of the device. It is effective to let.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970067049A KR100259292B1 (en) | 1997-12-09 | 1997-12-09 | Refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970067049A KR100259292B1 (en) | 1997-12-09 | 1997-12-09 | Refrigerator |
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| Publication Number | Publication Date |
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| KR19990048384A true KR19990048384A (en) | 1999-07-05 |
| KR100259292B1 KR100259292B1 (en) | 2000-06-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100803574B1 (en) * | 2006-10-11 | 2008-02-15 | 엘지전자 주식회사 | Fan motor driving control apparatus for refrigerator |
| CN114777381A (en) * | 2022-04-21 | 2022-07-22 | 海信（山东）冰箱有限公司 | Combined refrigerator and control method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101203975B1 (en) * | 2006-05-19 | 2012-11-23 | 엘지전자 주식회사 | Refrigerator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100803574B1 (en) * | 2006-10-11 | 2008-02-15 | 엘지전자 주식회사 | Fan motor driving control apparatus for refrigerator |
| WO2008044847A1 (en) * | 2006-10-11 | 2008-04-17 | Lg Electronics Inc. | Apparatus and method for controlling driving of fan motor for refrigerator |
| US8511104B2 (en) | 2006-10-11 | 2013-08-20 | Lg Electronics Inc. | Apparatus and method for controlling driving of fan motor for refrigerator |
| CN114777381A (en) * | 2022-04-21 | 2022-07-22 | 海信（山东）冰箱有限公司 | Combined refrigerator and control method thereof |
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