KR100208364B1 - Refrigerator and its control method - Google Patents

Refrigerator and its control method Download PDF

Info

Publication number
KR100208364B1
KR100208364B1 KR1019970033261A KR19970033261A KR100208364B1 KR 100208364 B1 KR100208364 B1 KR 100208364B1 KR 1019970033261 A KR1019970033261 A KR 1019970033261A KR 19970033261 A KR19970033261 A KR 19970033261A KR 100208364 B1 KR100208364 B1 KR 100208364B1
Authority
KR
South Korea
Prior art keywords
temperature
compressor
rotational speed
refrigerator
outside air
Prior art date
Application number
KR1019970033261A
Other languages
Korean (ko)
Other versions
KR19990010465A (en
Inventor
김중엽
Original Assignee
윤종용
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 윤종용, 삼성전자주식회사 filed Critical 윤종용
Priority to KR1019970033261A priority Critical patent/KR100208364B1/en
Publication of KR19990010465A publication Critical patent/KR19990010465A/en
Application granted granted Critical
Publication of KR100208364B1 publication Critical patent/KR100208364B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/025—Motor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/04—Self-contained movable devices, e.g. domestic refrigerators specially adapted for storing deep-frozen articles
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/28—Quick cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/10—Sensors measuring the temperature of the evaporator
    • 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
    • F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer

Abstract

본 발명은, 냉장고 및 그 제어방법에 관한 것으로서, 회전속도의 변경이 가능한 구동모터를 갖는 압축기와, 외기온도를 감지하는 외기온도센서와, 급속냉각 여부를 선택하는 급속냉각선택부와, 상기 급속냉각선택부로부터의 신호에 따른 급속냉각모드시 상기 외기온도센서로부터의 외기온도가 높을수록 상기 압축기 구동모터의 회전속도를 소정 시간동안 증속하는 제어부를 갖는다. 이에 의해, 급속냉각시 냉각성능에 영향을 미치는 요소에 따라 압축기의 구동속도와 구동시간을 변경함으로써, 냉각성능을 향상시키고 소비전력을 감소시킬 수 있는 냉장고 및 그 제어방법이 제공된다.The present invention relates to a refrigerator and a method of controlling the same, a compressor having a drive motor capable of changing a rotation speed, an outdoor air temperature sensor for sensing an outside air temperature, a rapid cooling selection unit for selecting whether to cool rapidly, and the rapid The controller may increase the rotational speed of the compressor driving motor for a predetermined time as the outside air temperature from the outside air temperature sensor increases in the rapid cooling mode according to a signal from the cooling selection unit. As a result, a refrigerator and a control method capable of improving cooling performance and reducing power consumption are provided by changing a driving speed and a driving time of a compressor according to factors affecting cooling performance during rapid cooling.

Description

냉장고 및 그 제어방법Refrigerator and its control method

본 발명은 냉장고 및 그 제어방법에 관한 것으로서, 특히, 급속냉각 선택시 외기온도나 증발기온도 등의 냉장고의 냉각성능에 영향을 미치는 조건에 따라 급속냉각을 적절히 운영할 수 있는 냉장고 및 그 제어방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator and a control method thereof, and more particularly, to a refrigerator capable of properly operating rapid cooling according to a condition affecting the cooling performance of the refrigerator such as an outdoor temperature or an evaporator temperature when selecting the rapid cooling and a control method thereof. will be.

도 1은 냉장고의 측단면도이다. 냉장고는, 본체(1)내에 격벽에 의해 상하로 구획된 한 쌍의 냉각실인 냉동실(3)과 냉장실(2)을 가지며, 냉동실(3) 및 냉장실(2)내에는 각 냉각실의 온도를 감지하는 냉동실고내온도센서(12a) 및 냉장실고내온도센서(12b)가 설치되어 있다. 한편, 각 냉동실(3)과 냉장실(2)의 전면에는 각각 냉동실도어(5)와 냉장실도어(4)가 부속되어 있으며, 냉장실(2)내에는 음식물을 수납할 수 있는 복수의 선반(6)이 상하로 설치되어 있고, 냉장실(2)의 상부 및 하부에는 특선실(7)과 야채실(8)이 형성되어 저장온도에 따라 음식물을 적절히 저장할 수 있다.1 is a side cross-sectional view of a refrigerator. The refrigerator has a freezing compartment 3 and a refrigerating compartment 2, which are a pair of cooling compartments partitioned up and down by partition walls in the main body 1, and sense the temperature of each cooling compartment in the freezing compartment 3 and the refrigerating compartment 2. The freezer compartment internal temperature sensor 12a and the refrigerator compartment internal temperature sensor 12b are provided. On the other hand, a freezer compartment door 5 and a refrigerator compartment door 4 are attached to the front of each freezer compartment 3 and the refrigerating compartment 2, respectively, and a plurality of shelves 6 for storing food in the refrigerator compartment 2 are provided. The upper and lower sides are provided, and the special chamber 7 and the vegetable chamber 8 are formed in the upper and lower portions of the refrigerating chamber 2, so that food can be properly stored according to the storage temperature.

한편, 이러한 냉장고의 후방 하부에는, 냉장고에 냉기를 생성하는 냉매를 고온고압으로 압축하는 압축기(21)가 설치되어 있고, 압축기(21)로부터 압축된 냉매는 본체의 전영역에 걸쳐 설치된 도시않은 응축기에서 응축된다. 그리고, 응축된 냉매는 냉장실과 냉동실(3)의 배면에 설치된 냉장실증발기(22b)와 냉동실증발기(22a)에서 증발되어 주위공기로부터 증발잠열을 빼앗아 주위공기를 냉각시키게 된다. 이렇게 냉각된 공기는 각 증발기(22)의 전면에 설치된 냉동실송풍팬(23a)과 냉장실송풍팬(23b)에 의해 냉동실(3) 및 냉장실(2)로 토출된다.On the other hand, a compressor 21 for compressing a refrigerant generating cold air at a high temperature and high pressure is provided in the rear lower portion of the refrigerator, and the refrigerant compressed from the compressor 21 is not shown in the condenser installed over the entire area of the main body. Condensation at The condensed refrigerant is evaporated from the refrigerator compartment evaporator 22b and the freezer compartment evaporator 22a installed at the rear of the refrigerating compartment and the freezing compartment 3 to take the latent heat of evaporation from the ambient air to cool the ambient air. Air cooled in this way is discharged to the freezer compartment 3 and the refrigerating chamber 2 by the freezer compartment blower fan 23a and the refrigerator compartment blower fan 23b provided in the front of each evaporator 22.

이러한 냉장고에 전원이 인가되어 압축기(21)의 구동조건이 성립되면, 압축기(21)가 구동하여 냉장고의 냉각행정이 이루어지게 된다. 이렇게 냉각행정이 이루어지고 있는 도중, 외부로부터의 조작에 의해 급속냉동이 선택되면, 압축기(21)와 냉동실송풍팬(23a)이 구동을 하게 된다. 이 때, 압축기(21)와 냉동실송풍팬(23a)은 연속하여 2시간 30분 동안 구동하게 되는데, 이 구동시간은 급속냉동이 선택된 시간부터 계산되는 것이 아니라, 압축기(21)의 구동에 의해 냉동실(3)내의 온도가 -18℃에 도달한 순간부터 계산되는 시간이다.When power is applied to the refrigerator and the driving conditions of the compressor 21 are established, the compressor 21 is driven to cool the refrigerator. When rapid cooling is selected by the operation from the outside while the cooling stroke is performed in this way, the compressor 21 and the freezing chamber blowing fan 23a are driven. At this time, the compressor 21 and the freezing chamber blowing fan 23a are continuously driven for 2 hours and 30 minutes, and this driving time is not calculated from the time when the rapid freezing is selected, but is driven by the freezer compartment by the driving of the compressor 21. It is time calculated from the moment when temperature in (3) reaches -18 degreeC.

그런데, 종래의 냉장고는, 급속냉동 선택시 냉장고의 냉각성능에 영향을 미치는 요소인 외기온도나 증발기온도 등은 고려하지 아니하고 압축기(21)를 구동함으로써, 급속냉동의 냉각성능이 저하되었다. 그리고, 외기온도나 증발기온도 등에 상관없이 항상 같은 조건으로 압축기(21)와 냉동실송풍팬(23a)을 구동함으로써 기기에 무리가 발생한다는 문제점이 있다.However, in the conventional refrigerator, by operating the compressor 21 without considering the outdoor air temperature, the evaporator temperature, and the like, which are factors that affect the cooling performance of the refrigerator at the time of rapid freezing, the cooling performance of the rapid freezing is reduced. In addition, there is a problem in that the apparatus is excessively driven by driving the compressor 21 and the freezing chamber blowing fan 23a under the same conditions regardless of the outside temperature or the evaporator temperature.

따라서 본 발명의 목적은, 급속냉동 선택시 냉각성능에 영향을 미치는 요소에 따라 적절히 대처하도록 하여 냉각성능을 향상시킬 수 있는 냉장고 및 그 제어방법을 제공하는 것이다.Accordingly, an object of the present invention is to provide a refrigerator and a method of controlling the same, which can improve cooling performance by appropriately coping with the factors affecting the cooling performance when selecting a quick freezing method.

도 1은 냉장고의 측단면도,1 is a side cross-sectional view of a refrigerator,

도 2는 본 발명에 따른 냉장고의 제어블럭도,2 is a control block diagram of a refrigerator according to the present invention;

도 3a 내지 도 3c는 도 2에 따른 냉장고의 제어흐름도이다.3A to 3C are control flowcharts of the refrigerator according to FIG. 2.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

2 : 냉장실 3 : 냉동실2: freezer 3: freezer

9 : 급속냉각선택부 12 : 고내온도센서9: Quick Cooling Selector 12: High Temperature Sensor

13 : 증발기온도센서 15 : 외기온도센서13: evaporator temperature sensor 15: outside temperature sensor

21 : 압축기 23 : 송풍팬21 compressor 23 blower fan

25 : 압축기구동회로 26 : 송풍팬구동회로25 compressor driving circuit 26 blowing fan driving circuit

상기 목적은, 본 발명에 따라, 냉장고에 있어서, 회전속도의 변경이 가능한 구동모터를 갖는 압축기와, 외기온도를 감지하는 외기온도센서와, 급속냉각 여부를 선택하는 급속냉각선택부와, 상기 급속냉각선택부로부터의 신호에 따른 급속냉각모드시 상기 외기온도센서로부터의 외기온도가 높을수록 상기 압축기 구동모터의 회전속도를 소정 시간동안 증속하는 제어부를 갖는 것을 특징으로 하는 냉장고에 의해 달성된다.According to the present invention, the refrigerator, in the refrigerator, a compressor having a drive motor capable of changing the rotational speed, an outside air temperature sensor for sensing the outside air temperature, a rapid cooling selection unit for selecting whether or not rapid cooling, and the rapid In the quick cooling mode according to the signal from the cooling selection unit, the higher the outside air temperature from the outside air temperature sensor is achieved by the refrigerator characterized in that it has a control unit for increasing the rotational speed of the compressor drive motor for a predetermined time.

여기서, 상기 제어부는, 상기 외기온도를 복수의 단계로 나누고, 상기 각 외기온도단계에 대응하여 상기 압축기의 회전속도를 단계적으로 제어할 수 있다. 그리고, 증발기온도센서를 더 포함하며, 상기 제어부는 상기 증발기온도센서로부터의 증발기온도에 따라 상기 압축기의 회전속도를 단계적으로 제어할 수 있다.Here, the control unit may divide the outside air temperature into a plurality of stages, and control the rotational speed of the compressor step by step in response to each of the outside air temperature stages. The apparatus may further include an evaporator temperature sensor, and the controller may control the rotational speed of the compressor in accordance with the evaporator temperature from the evaporator temperature sensor.

또한, 상기 제어부는, 상기 외기온도단계내에서 상기 증발기의 온도가 높을수록 상기 구동모터의 회전속도를 증속하는 것이 바람직하며, 이 때, 상기 제어부는, 상기 증발기의 온도를 복수의 단계로 나누고, 이에 따라 상기 구동모터의 회전속도를 단계적으로 증속 또는 감속하도록 할 수 있다. 여기서, 상기 제어부는, 상기 구동모터의 회전속도가 클수록 상기 압축기의 증속운전시간을 짧게 하는 것이 바람직하다.The control unit may increase the rotational speed of the driving motor as the temperature of the evaporator increases in the outside air temperature step, wherein the controller divides the temperature of the evaporator into a plurality of stages, Accordingly, it is possible to increase or decrease the rotational speed of the drive motor step by step. Here, the control unit, it is preferable to shorten the speed increase operation time of the compressor as the rotational speed of the drive motor is larger.

한편, 상기 목적은, 본 발명의 다른 분야에 따르면, 회전속도의 변경이 가능한 구동모터를 갖는 압축기가 설치된 냉장고의 제어방법에 있어서, 급속냉각모드를 선택하는 단계와, 외기온도를 감지하는 단계와, 외기온도가 높을수록 상기 압축기 구동모터의 회전속도를 소정 시간동안 증속하는 단계를 포함하는 것을 특징으로 하는 냉장고의 제어방법에 의해서도 달성될 수 있다.On the other hand, the above object, according to another field of the present invention, in the control method of the refrigerator having a compressor having a drive motor that can change the rotational speed, the step of selecting a rapid cooling mode, the step of sensing the outside temperature and It may also be achieved by the control method of the refrigerator, characterized by the step of increasing the rotational speed of the compressor drive motor for a predetermined time as the outside air temperature is higher.

여기서, 상기 구동모터의 구동속도를 제어하는 단계는, 상기 외기온도를 복수의 단계로 나누고, 상기 각 외기온도단계에 대응하여 상기 압축기의 회전속도를 단계적으로 제어하는 단계를 포함하는 것이 바람직하며, 상기 구동모터의 회전속도를 제어하는 단계는, 증발기온도를 감지하는 단계를 더 포함하며, 상기 증발기온도에 따라 상기 압축기의 회전속도를 단계적으로 제어하는 단계를 포함하는 것이 바람직하다. 그리고, 상기 외기온도단계내에서 상기 증발기의 온도가 높을수록 상기 구동모터의 회전속도를 증속하는 것이 바람직하고, 상기 구동모터의 회전속도가 클수록 상기 압축기의 증속운전시간을 짧게 하는 것이 바람직하다.The controlling of the driving speed of the driving motor may include dividing the outside air temperature into a plurality of stages, and controlling the rotational speed of the compressor in stages corresponding to each of the outside air temperature stages. The step of controlling the rotational speed of the drive motor further comprises the step of sensing the evaporator temperature, preferably comprising the step of controlling the rotational speed of the compressor in accordance with the evaporator temperature. In addition, the higher the temperature of the evaporator in the outside air temperature step, the higher the rotational speed of the drive motor, and the higher the rotational speed of the drive motor, the shorter the speed increase operation time of the compressor.

이하, 도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the drawings.

냉장고는 도 1과 관련하여 설명한 바와 같이, 외관을 이루는 본체(1)내에 격벽에 의해 상하로 구획된 한 쌍의 냉각실인 냉동실(3)과 냉장실(2)을 가지며, 냉동실(3) 및 냉장실(2)내에는 각 냉각실의 온도를 감지하는 냉동실고내온도센서(12a) 및 냉장실고내온도센서(12b)가 설치되어 있다. 한편, 본체(1)의 상부에는 외기의 온도를 감지하는 외기온도센서(11)가 설치되어 있으며, 각 냉동실(3)과 냉장실(2)의 전면에는 각각 냉동실도어(5)와 냉장실도어(4)가 부속되어 있다. 그리고, 냉장실(2)내에는 음식물을 수납할 수 있는 복수의 선반(6)이 상하로 설치되어 있고, 냉장실(2)의 상부 및 하부에는 특선실(7)과 야채실(8)이 형성되어 저장온도에 따라 음식물을 적절히 저장할 수 있다.As described with reference to FIG. 1, the refrigerator has a freezing compartment 3 and a refrigerating compartment 2, which are a pair of cooling compartments partitioned up and down by a partition in a main body 1 forming an appearance, and have a freezing compartment 3 and a refrigerating compartment ( 2) inside the freezer compartment high temperature sensor 12a and the refrigerating compartment high temperature sensor 12b for detecting the temperature of each cooling chamber. On the other hand, the outside air temperature sensor 11 for sensing the temperature of the outside air is installed on the upper part of the main body 1, and the freezing chamber door 5 and the refrigerating chamber door 4 on the front of each freezing chamber 3 and the refrigerating chamber 2, respectively. ) Is attached. In the refrigerator compartment 2, a plurality of shelves 6 capable of storing food are installed up and down, and a special chamber 7 and a vegetable compartment 8 are formed and stored at the upper and lower portions of the refrigerator compartment 2. Food can be stored properly according to the temperature.

한편, 이러한 냉장고의 후방 하부에는, 냉장고에 냉기를 생성하는 냉매를 고온고압으로 압축하는 압축기(21)가 설치되어 있고, 압축기(21)로부터 압축된 냉매는 본체의 전영역에 걸쳐 설치된 도시않은 응축기에서 응축된다. 그리고, 응축된 냉매는 냉장실과 냉동실(3)의 배면에 설치된 냉장실증발기(22b)와 냉동실증발기(22a)에서 증발되어 주위공기로부터 증발잠열을 빼앗아 주위공기를 냉각시키게 된다. 이렇게 냉각된 공기는 각 증발기(22)의 전면에 설치된 냉동실송풍팬(23a)과 냉장실송풍팬(23b)에 의해 냉동실(3) 및 냉장실(2)로 토출된다.On the other hand, a compressor 21 for compressing a refrigerant generating cold air at a high temperature and high pressure is provided in the rear lower portion of the refrigerator, and the refrigerant compressed from the compressor 21 is not shown in the condenser installed over the entire area of the main body. Condensation at The condensed refrigerant is evaporated from the refrigerator compartment evaporator 22b and the freezer compartment evaporator 22a installed at the rear of the refrigerating compartment and the freezing compartment 3 to take the latent heat of evaporation from the ambient air to cool the ambient air. Air cooled in this way is discharged to the freezer compartment 3 and the refrigerating chamber 2 by the freezer compartment blower fan 23a and the refrigerator compartment blower fan 23b provided in the front of each evaporator 22.

이러한 냉동시스템 중 압축기(21)는, 밀폐된 케이싱내에 냉매를 압축하는 압축부와, 압축부에 동력을 제공하는 구동모터로 이루어지며, 여기서, 구동모터는 구동속도를 가변할 수 있는 브러시리스모터나 인버터모터 등으로 형성된다. 이에 따라, 냉장고내의 조건이나 외기의 조건에 따라, 구동속도를 가변하여 압축기(21)로부터 압축되는 냉매의 양을 조절할 수 있다.Compressor 21 of the refrigeration system is composed of a compression unit for compressing the refrigerant in the sealed casing, and a drive motor for providing power to the compression unit, wherein the drive motor is a brushless motor that can vary the drive speed. Or inverter motor. Accordingly, the amount of the refrigerant compressed from the compressor 21 can be adjusted by varying the driving speed according to the conditions in the refrigerator or the condition of the outside air.

이러한 냉장고를 제어하는 제어부는, 도 2에 도시된 바와 같이, 고내온도센서(12)와 외기온도센서(11), 증발기온도센서(13), 그리고, 급속냉각선택부(9)로부터 정보를 입력받아, 압축기구동회로(25)와 송풍팬구동회로(26)로 신호를 출력하게 된다. 그러면, 압축기구동회로(25)와 송풍팬구동회로(26)에 의해 압축기(21)와 송풍팬(23)이 구동하게 된다. 여기서, 제어부(10)는, 외기온도센서(15)에 의한 외기온도가 높을수록 냉장고의 냉각성능이 저하되는 것에 대응하여 압축기(21) 구동모터의 회전속도를 증속시킨다. 그리고, 제어부(10)는 증발기온도센서(13)에 의한 증발기온도가 높을수록, 고내온도가 설정된 온도보다 높을 것으로 판단하고 구동모터의 회전속도를 증속시키게 된다.As shown in FIG. 2, the control unit for controlling the refrigerator inputs information from the high temperature sensor 12, the outside temperature sensor 11, the evaporator temperature sensor 13, and the rapid cooling selector 9. In response, the signal is output to the compressor driving circuit 25 and the blowing fan driving circuit 26. Then, the compressor 21 and the blower fan 23 are driven by the compressor drive circuit 25 and the blower fan drive circuit 26. Here, the controller 10 increases the rotational speed of the drive motor of the compressor 21 in response to a decrease in the cooling performance of the refrigerator as the outside temperature by the outside temperature sensor 15 is higher. In addition, the controller 10 determines that the internal temperature is higher than the set temperature as the evaporator temperature by the evaporator temperature sensor 13 is higher, thereby increasing the rotational speed of the driving motor.

도 3a 내지 도 3c는 이러한 제어부(10)에 의해 제어되는 냉장고의 제어흐름도이다. 이러한 냉장고에 전원이 인가되어 압축기(21)의 구동조건이 성립되면, 압축기(21)가 구동하여 냉장고의 냉각행정이 이루어지게 된다. 이렇게 냉각행정이 이루어지고 있는 도중, 외부의 급속냉각선택부(9)에 의해 급속냉동이 선택되면(S5), 제어부(10)는 외기온도센서(15)로부터 감지된 외기온도와 증발기온도센서(13)로부터 증발기온도를 입력받는다. 이 때, 외기온도가 소정의 고온이상, 예를 들면 30℃ 이상이고(S10), 증발기온도가 소정 저온이하, -30℃이하이면(S15), 압축기(21)를 정상운전속도, 예를 들면 3000rpm으로 운전한다(S20). 그리고, 제어부(10)는 고내온도센서(12)에 의해 감지된 감지값에 기초하여 냉동실(3)의 온도가 적절한 냉동을 위해 설정된 온도에 도달했는지를 판단하게 된다(S25). 냉동실온도가 설정된 온도에 도달하면, 제어부(10)는 설정된 온도에 도달한 시간부터 소정시간, 3시간동안 압축기(21)를 운전시키게 된다(S30).3A to 3C are control flowcharts of the refrigerator controlled by the control unit 10. When power is applied to the refrigerator and the driving conditions of the compressor 21 are established, the compressor 21 is driven to cool the refrigerator. In this way, if the rapid freezing is selected by the external rapid cooling selection unit 9 while the cooling stroke is being made (S5), the control unit 10 detects the outside air temperature and the evaporator temperature sensor 13 detected by the outside air temperature sensor 15. Evaporator temperature is input. At this time, if the outside temperature is higher than a predetermined high temperature, for example, 30 ° C. or higher (S10), and the evaporator temperature is lower than a predetermined low temperature, or lower than −30 ° C. (S15), the compressor 21 is operated at a normal operating speed, for example. Drive at 3000rpm (S20). Then, the controller 10 determines whether the temperature of the freezer compartment 3 has reached a temperature set for proper freezing based on the detected value detected by the high temperature sensor 12 (S25). When the freezer compartment temperature reaches the set temperature, the controller 10 operates the compressor 21 for a predetermined time and 3 hours from the time when the freezer temperature is reached (S30).

한편, 증발기온도가 -20℃~-30℃ 사이에 있을 경우(S35), 제어부(10)는 압축기(21)를 3,500rpm으로 운전시키고(S40), 고내온도센서(12)에 의해 감지된 감지값에 기초하여 냉동실(3)의 온도가 설정된 온도에 도달했는지를 판단하게 된다(S45). 냉동실온도가 설정된 온도에 도달하면, 제어부(10)는 설정된 온도에 도달한 시간부터 소정시간, 2시간 30분동안 압축기(21)를 운전시키게 된다(S50). 그리고, 증발기온도가 소정 고온인 -20℃이상일 경우(S55), 제어부(10)는 냉동실(3)의 온도가 설정된 온도에 도달할 때까지 압축기(21)를 4,000rpm으로 운전하도록 하고(S60), 설정된 온도에 도달하면 그 시간부터 2시간동안 압축기(21)를 계속 운전하도록 하게 된다(S65,S70).On the other hand, when the evaporator temperature is between -20 ℃ ~ -30 ℃ (S35), the control unit 10 operates the compressor 21 at 3,500rpm (S40), sensed by the high temperature sensor 12 Based on the value, it is determined whether the temperature of the freezer compartment 3 reaches the set temperature (S45). When the freezer compartment temperature reaches the set temperature, the control unit 10 operates the compressor 21 for a predetermined time and 2 hours and 30 minutes from the time when the freezer temperature is reached (S50). Then, when the evaporator temperature is above a predetermined high temperature of -20 ° C (S55), the control unit 10 to operate the compressor 21 at 4,000rpm until the temperature of the freezer compartment 3 reaches the set temperature (S60). When the set temperature is reached, the compressor 21 is continuously operated for 2 hours (S65, S70).

한편, 외기온도센서(15)로부터의 외기온도가 상온인 20℃~30℃일 경우(P10), 증발기온도가 소정 저온인 -30℃이하이면(P15), 제어부(10)는 압축기(21)를 정상운전속도보다 소정 낮은 속도, 예를 들면 2,800rpm으로 운전한다(P20). 그리고, 제어부(10)는 고내온도가 설정된 온도에 도달하면(P25), 그 때부터 3시간동안 연속해서 압축기(21)를 운전하게 된다(P30).On the other hand, when the outside air temperature from the outside air temperature sensor 15 is 20 ° C. to 30 ° C. at room temperature (P10), and if the evaporator temperature is below -30 ° C. at a predetermined low temperature (P15), the control unit 10 is the compressor 21. Is operated at a predetermined speed lower than the normal operation speed, for example, 2,800 rpm (P20). When the internal temperature reaches the set temperature (P25), the controller 10 continuously operates the compressor 21 for three hours from that time (P30).

마찬가지로, 증발기온도가 -20℃~-30℃일 경우(P35), 제어부(10)는 고내온도가 설정온도에 도달할 때까지 압축기(21)를 정상운전속도인 3,000rpm으로 운전시키고(P40), 고내온도가 설정온도에 도달하면 그 때부터 2시간 30분동안 압축기(21)를 연속으로 운전시키게 된다(P45,P50). 그리고, 증발기온도가 -20℃이상일 경우에는(P55), 압축기(21)를 정상운전속도보다 소정 높은 3,500rpm으로 운전하고(P60), 고내온도가 설정온도에 도달하면(P65), 그 때부터 2시간동안 연속으로 압축기(21)를 운전시키게 된다(P70).Similarly, when the evaporator temperature is -20 ° C ~ -30 ° C (P35), the controller 10 operates the compressor 21 at 3,000 rpm, the normal operating speed, until the internal temperature reaches the set temperature (P40). When the internal temperature reaches the set temperature, the compressor 21 is continuously operated for 2 hours and 30 minutes (P45, P50). When the evaporator temperature is above -20 ° C (P55), the compressor 21 is operated at 3,500 rpm higher than the normal operation speed (P60), and when the internal temperature reaches the set temperature (P65), from then on The compressor 21 is continuously operated for 2 hours (P70).

한편, 외기온도가 소정 저온인 20℃이하일 때(Q10), 증발기온도가 -30℃이하이면(Q15), 압축기(21)를 2,800rpm으로 운전하고(Q20), 고내온도가 설정온도에 도달하면 그 때부터 2시간 30분 동안 압축기(21)를 연속적으로 운전시키게 된다(Q25,Q30). 그리고, 증발기온도가 -20℃~-30℃일 경우(Q35), 제어부(10)는 고내온도가 설정온도에 도달할 때까지 압축기(21)를 정상운전속도인 3,000rpm으로 운전시키고(Q40), 고내온도가 설정온도에 도달하면 그 때부터 2시간동안 압축기(21)를 연속으로 운전시키게 된다(Q45,Q50). 마찬가지로 증발기온도가 -20℃이하일 경우(Q55), 고내온도가 설정온도에 도달할 때까지 압축기(21)를 소정 고속인 3,500rpm으로 운전시키고(Q60), 고내온도가 설정온도에 도달하면 그 때부터 2시간동안 압축기(21)를 연속으로 운전시키게 된다(Q65,Q70).On the other hand, when the outside air temperature is below a predetermined low temperature of 20 ° C (Q10), when the evaporator temperature is below -30 ° C (Q15), the compressor 21 is operated at 2,800 rpm (Q20), and the high internal temperature reaches the set temperature. From then on, the compressor 21 is continuously operated for 2 hours and 30 minutes (Q25, Q30). Then, when the evaporator temperature is -20 ° C ~ -30 ° C (Q35), the control unit 10 operates the compressor 21 at 3,000 rpm, the normal operating speed until the internal temperature reaches the set temperature (Q40) When the internal temperature reaches the set temperature, the compressor 21 is continuously operated for 2 hours (Q45, Q50). Similarly, when the evaporator temperature is below -20 ° C (Q55), the compressor 21 is operated at a high speed of 3,500 rpm until the internal temperature reaches the set temperature (Q60), and when the internal temperature reaches the set temperature, From this, the compressor 21 is continuously operated for 2 hours (Q65, Q70).

이러한 구성에 의한 냉장고는, 급속냉각의 선택시에 외기온도가 높고 증발기온도가 높을수록 압축기(21) 구동모터의 회전속도를 높이고, 구동모터의 회전속도가 높을수록 압축기(21)의 구동시간을 작게 설정하였다. 이에 의해, 급속냉각시에 외기온도와 증발기온도에 따라 압축기(21)의 구동을 조절함으로써, 압축기(21)에 무리를 주지아니하고, 최적의 조건으로 급속냉각을 수행하도록 한다.The refrigerator having such a configuration increases the rotation speed of the driving motor of the compressor 21 as the outside air temperature is higher and the evaporator temperature is higher when the rapid cooling is selected, and the driving time of the compressor 21 as the rotation speed of the driving motor is higher. It was set small. As a result, by controlling the driving of the compressor 21 according to the outside air temperature and the evaporator temperature during the rapid cooling, the compressor 21 is not overwhelmed and the rapid cooling is performed under optimum conditions.

상술한 실시예에서는, 외기온도와 증발기온도의 범위를 복수의 단계로 나누고, 이에 따라, 압축기(21)의 구동속도 및 구동시간을 설정하였으나, 외기온도와 증발기온도의 변화에 따라 압축기(21)의 구동속도와 구동시간을 선형적으로 대응가능하도록 설정할 수도 있다. 그리고, 상기에서 설정된 외기온도 및 압축기온도와, 이에 따른 압축기의 구동속도, 구동시간은 기기의 용량이나 특성에 따라 임의로 설정할 수 있다.In the above-described embodiment, the range of the outside air temperature and the evaporator temperature is divided into a plurality of stages, and accordingly, the driving speed and the driving time of the compressor 21 are set. However, the compressor 21 is driven according to the change of the outside air temperature and the evaporator temperature. It is also possible to set the speed and driving time to be linearly compatible. In addition, the outside air temperature and the compressor temperature, the driving speed, and the driving time of the compressor, which are set above, may be arbitrarily set according to the capacity or characteristics of the device.

이상에서 설명한 바와 같이, 본 발명에 따르면, 급속냉각시 냉각성능에 영향을 미치는 요소에 따라 압축기의 구동속도와 구동시간을 변경함으로써, 냉각성능을 향상시키고 소비전력을 감소시킬 수 있는 냉장고 및 그 제어방법이 제공된다.As described above, according to the present invention, a refrigerator and its control capable of improving cooling performance and reducing power consumption by changing a driving speed and a driving time of a compressor according to factors affecting cooling performance during rapid cooling. A method is provided.

Claims (11)

냉장고에 있어서,In the refrigerator, 회전속도의 변경이 가능한 구동모터를 갖는 압축기와,Compressor having a drive motor that can change the rotational speed, 외기온도를 감지하는 외기온도센서와,An outside temperature sensor for detecting outside temperature; 급속냉각 여부를 선택하는 급속냉각선택부와,Quick cooling selector for selecting whether or not to rapidly cool, 상기 급속냉각선택부로부터의 신호에 따른 급속냉각모드시 상기 외기온도센서로부터의 외기온도가 높을수록 상기 압축기 구동모터의 회전속도를 소정 시간동안 증속하는 제어부를 갖는 것을 특징으로 하는 냉장고.And a control unit which increases the rotational speed of the compressor driving motor for a predetermined time as the outside air temperature from the outside air temperature sensor increases in the rapid cooling mode according to the signal from the rapid cooling selection unit. 제 1 항에 있어서,The method of claim 1, 상기 제어부는, 상기 외기온도를 복수의 단계로 나누고, 상기 각 외기온도단계에 대응하여 상기 압축기의 회전속도를 단계적으로 제어하는 것을 특징으로 하는 냉장고.The controller divides the outside air temperature into a plurality of stages, and controls the rotational speed of the compressor step by step in response to each of the outside air temperature stages. 제 2 항에 있어서,The method of claim 2, 증발기온도센서를 더 포함하며, 상기 제어부는 상기 증발기온도센서로부터의 증발기온도에 따라 상기 압축기의 회전속도를 단계적으로 제어하는 것을 특징으로 하는 냉장고.The refrigerator further comprises an evaporator temperature sensor, wherein the control unit controls the rotational speed of the compressor step by step according to the evaporator temperature from the evaporator temperature sensor. 제 3 항에 있어서,The method of claim 3, wherein 상기 제어부는, 상기 외기온도단계내에서 상기 증발기의 온도가 높을수록 상기 구동모터의 회전속도를 증속하는 것을 특징으로 하는 냉장고.The control unit, characterized in that to increase the rotational speed of the drive motor as the temperature of the evaporator in the outside air temperature step. 제 4 항에 있어서,The method of claim 4, wherein 상기 제어부는, 상기 증발기의 온도를 복수의 단계로 나누고, 이에 따라 상기 구동모터의 회전속도를 단계적으로 증속 또는 감속하는 것을 특징으로 하는 냉장고.The control unit divides the temperature of the evaporator into a plurality of stages, and accordingly increases or decreases the rotational speed of the drive motor in a refrigerator. 제 5 항에 있어서,The method of claim 5, 상기 제어부는, 상기 구동모터의 회전속도가 클수록 상기 압축기의 증속운전시간을 짧게 하는 것을 특징으로 하는 냉장고.The control unit, characterized in that the shorter the speed increase operation time of the compressor as the rotational speed of the drive motor is larger. 회전속도의 변경이 가능한 구동모터를 갖는 압축기가 설치된 냉장고의 제어방법에 있어서,In the control method of the refrigerator provided with a compressor having a drive motor capable of changing the rotational speed, 급속냉각모드를 선택하는 단계와,Selecting a rapid cooling mode; 외기온도를 감지하는 단계와,Detecting the outside temperature; 외기온도가 높을수록 상기 압축기 구동모터의 회전속도를 소정 시간동안 증속하는 단계를 포함하는 것을 특징으로 하는 냉장고의 제어방법.And increasing the rotational speed of the compressor driving motor for a predetermined time as the outside air temperature is higher. 제 7 항에 있어서,The method of claim 7, wherein 상기 구동모터의 구동속도를 제어하는 단계는, 상기 외기온도를 복수의 단계로 나누고, 상기 각 외기온도단계에 대응하여 상기 압축기의 회전속도를 단계적으로 제어하는 단계를 포함하는 것을 특징으로 하는 냉장고의 제어방법.The controlling of the driving speed of the driving motor may include dividing the outside temperature into a plurality of stages, and controlling the rotational speed of the compressor step by step in response to each of the outside temperature stages. Control method. 제 8 항에 있어서,The method of claim 8, 상기 구동모터의 회전속도를 제어하는 단계는, 증발기온도를 감지하는 단계를 더 포함하며, 상기 증발기온도에 따라 상기 압축기의 회전속도를 단계적으로 제어하는 단계를 포함하는 것을 특징으로 하는 냉장고의 제어방법.The controlling of the rotational speed of the driving motor further includes sensing an evaporator temperature, and controlling the rotational speed of the compressor stepwise according to the evaporator temperature. . 제 9 항에 있어서,The method of claim 9, 상기 외기온도단계내에서 상기 증발기의 온도가 높을수록 상기 구동모터의 회전속도를 증속하는 것을 특징으로 하는 냉장고의 제어방법.The control method of the refrigerator, characterized in that to increase the rotational speed of the drive motor as the temperature of the evaporator in the outside air temperature step. 제 10 항에 있어서,The method of claim 10, 상기 구동모터의 회전속도가 클수록 상기 압축기의 증속운전시간을 짧게 하는 것을 특징으로 하는 냉장고의 제어방법.The control method of the refrigerator, characterized in that for increasing the rotational speed of the drive motor shorter speed increase operation time of the compressor.
KR1019970033261A 1997-07-16 1997-07-16 Refrigerator and its control method KR100208364B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970033261A KR100208364B1 (en) 1997-07-16 1997-07-16 Refrigerator and its control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970033261A KR100208364B1 (en) 1997-07-16 1997-07-16 Refrigerator and its control method

Publications (2)

Publication Number Publication Date
KR19990010465A KR19990010465A (en) 1999-02-18
KR100208364B1 true KR100208364B1 (en) 1999-07-15

Family

ID=19514763

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970033261A KR100208364B1 (en) 1997-07-16 1997-07-16 Refrigerator and its control method

Country Status (1)

Country Link
KR (1) KR100208364B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103388955A (en) * 2013-07-22 2013-11-13 合肥美的电冰箱有限公司 Refrigerator and control method thereof
CN104913571A (en) * 2015-06-25 2015-09-16 合肥美的电冰箱有限公司 Variable frequency refrigerator and control method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117469869B (en) * 2023-12-26 2024-03-19 珠海格力电器股份有限公司 Compressor control method and device and refrigerator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103388955A (en) * 2013-07-22 2013-11-13 合肥美的电冰箱有限公司 Refrigerator and control method thereof
CN103388955B (en) * 2013-07-22 2015-10-21 合肥美的电冰箱有限公司 Refrigerator and control method thereof
CN104913571A (en) * 2015-06-25 2015-09-16 合肥美的电冰箱有限公司 Variable frequency refrigerator and control method thereof
CN104913571B (en) * 2015-06-25 2017-09-19 合肥美的电冰箱有限公司 The control method of frequency conversion refrigerator and frequency conversion refrigerator

Also Published As

Publication number Publication date
KR19990010465A (en) 1999-02-18

Similar Documents

Publication Publication Date Title
JP3048564B1 (en) Refrigerator with a compressor whose compression capacity is variable depending on the temperature of the outside air and the temperature of the evaporator
US6216478B1 (en) Operation speed change system and method for refrigerator
JPH11148761A (en) Refrigerator
KR100208364B1 (en) Refrigerator and its control method
KR100234121B1 (en) Refrigerator and control method
KR100207087B1 (en) Refrigerator operating control method
KR100576178B1 (en) Refrigerator and operating control method thereof
KR100222956B1 (en) Refrigerator and its control method
KR100207091B1 (en) Refrigerator operating control method
KR100189124B1 (en) Control method of a refrigerator
KR100246895B1 (en) Apparatus and method for cooling compressor of refrigerator
KR100234097B1 (en) Refrigerator and control method thereof
KR100516636B1 (en) Method and system for controlling refrigerator driving
KR100196943B1 (en) Fan rotative speed control method and its control apparatus of a refrigerator
KR100222929B1 (en) Refrigerator and its control method
JP2000111231A (en) Freezer-refrigerator
KR20010026227A (en) Working method for refrigerator
KR100208336B1 (en) Refrigerator and its operating control method
JPH07260313A (en) Refrigerator
KR100208347B1 (en) Refrigerator and its operating method
KR100222928B1 (en) Refrigerator and its control method
JPH1038440A (en) Controller for refrigerator
JP2002221381A (en) Refrigerating machine
KR20000034721A (en) Method for controlling fan in refrigerating chamber
CN113776268A (en) Refrigerator condensing fan control method and system and refrigerator

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20110330

Year of fee payment: 13

LAPS Lapse due to unpaid annual fee