KR0182743B1 - Control method for vent fan of an airconditioner - Google Patents
Control method for vent fan of an airconditioner Download PDFInfo
- Publication number
- KR0182743B1 KR0182743B1 KR1019960004231A KR19960004231A KR0182743B1 KR 0182743 B1 KR0182743 B1 KR 0182743B1 KR 1019960004231 A KR1019960004231 A KR 1019960004231A KR 19960004231 A KR19960004231 A KR 19960004231A KR 0182743 B1 KR0182743 B1 KR 0182743B1
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- South Korea
- Prior art keywords
- heat exchanger
- indoor
- outdoor
- heat exchange
- fan
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
본 발명은 공기조화기의 실내외 배관온도에 의거하여 열교환정도를 판단하여, 실내팬과 실외팬을 연동제어하는 공기조화기의 송풍팬 제어방법에 관한 것이다. 실내열교환기의 배관온도 및 실외열교환기의 배관온도를 감지하고, 감지된 배관온도에 의거하여 실내팬 및 실외팬의 속도를 제어하는 공기조화기의 송풍팬 제어방법에 있어서, 실내열교환기 및 실외열교환기의 배관온도를 감지하는 단계; 상기 단계에서 감지된 실내열교환기의 배관온도와 실외열교환기의 배관온도를 각각의 기준온도범위와 비교하여, 그 비교결과에 따라 실내측열교환기 및 실외측열교환기의 열교환정도를 판단하는 단계; 그리고, 상기 열교환정도 판단단계에서 판단된 열교환정도에 의거하여 실내측열교환기 및 실외측열교환기의 열교환정도가 균형을 이루도록 실내팬 및 실외팬의 속도를 제어하는 단계로 이루어진 것을 특징으로 한다.The present invention relates to a blower fan control method of an air conditioner for determining the degree of heat exchange based on the indoor and outdoor piping temperature of the air conditioner, and interlocked control between the indoor fan and the outdoor fan. A method of controlling a blower fan in an air conditioner that senses a pipe temperature of an indoor heat exchanger and a pipe temperature of an outdoor heat exchanger, and controls the speed of an indoor fan and an outdoor fan based on the detected pipe temperature. Sensing a pipe temperature of the heat exchanger; Comparing the pipe temperature of the indoor heat exchanger and the pipe temperature of the outdoor heat exchanger detected in the step with each reference temperature range, and determining the heat exchange degree of the indoor side heat exchanger and the outdoor side heat exchanger according to the comparison result; And controlling the speeds of the indoor fan and the outdoor fan to balance the heat exchange degree of the indoor side heat exchanger and the outdoor side heat exchanger based on the heat exchange degree determined in the heat exchange degree determination step.
Description
본 발명은 공기조화기의 송풍팬 제어방법에 관한 것으로, 특히 공기조화기의 실내외 배관온도에 의거하여 실내열교환기 및 실외열교환기의 열교환정도를 파악한 후에 실내팬과 실외팬을 연동제어하는 공기조화기의 송풍팬 제어방법에 관한 것이다.The present invention relates to a control method of a blower fan of an air conditioner, and in particular, an air conditioner for interlocking an indoor fan and an outdoor fan after grasping the degree of heat exchange between the indoor heat exchanger and the outdoor heat exchanger based on the indoor and outdoor piping temperature of the air conditioner. It relates to a blowing fan control method of the machine.
일반적으로, 공기조화기는 설치위치를 기준으로 하여 실내측유니트와 실외측유니트로 구분되는데, 실내측유니트와 실외측유니트에는 각각 냉각싸이클의 구성요소가 되는 실내열교환기 및 실외열교환기가 설치되고, 이들과 인접한 위치에는 열교환을 촉진시키기 위한 송풍팬들이 각각 설치된다.In general, an air conditioner is divided into an indoor unit and an outdoor unit on the basis of the installation position. The indoor unit and the outdoor unit are each provided with an indoor heat exchanger and an outdoor heat exchanger, which are components of the cooling cycle. Blowing fans for promoting heat exchange are respectively installed at positions adjacent to the.
전술한 공기조화기에서, 종래에는 실내열교환기의 배관온도에 따라 실내측 송풍팬의 회전속도만을 제어하거나, 실외열교환기의 배관온도에 따라 실외측 송풍팬의 회전속도만을 제어하였다.In the above air conditioner, conventionally, only the rotational speed of the indoor blower fan is controlled according to the piping temperature of the indoor heat exchanger, or only the rotational speed of the outdoor blower fan is controlled according to the piping temperature of the outdoor heat exchanger.
그런데, 실내열교환기와 실외열교환기는 서로의 열교환율에 영향을 미치므로, 각각의 열교환기의 효율 및 열교환율, 그리고 공기조화기 전체의 공조효율을 향상시키기 위해서는 열교환율이 과도한 열교환기는 열교환율이 낮아지도록 하고, 열교환율이 과소한 열교환기는 열교환율이 높아지도록 함과 동시에 실내열교환기와 실외열교환기의 열교환율이 균형을 이루도록 하여야 한다.However, since the indoor heat exchanger and the outdoor heat exchanger affect each other's heat exchange rate, in order to improve the efficiency and heat exchange rate of each heat exchanger and the air conditioning efficiency of the entire air conditioner, the heat exchanger having an excessive heat exchange rate has a low heat exchange rate. Heat exchangers with a low heat exchange rate should have a high heat exchange rate and a balance between the heat exchange rates of the indoor heat exchanger and the outdoor heat exchanger.
그러나, 상기와 같은 종래의 기술들은 실내측 열교환율 또는 실외측 열교환율을 전혀 도외시한 채로 실내배관온도에 의거하여 실내팬만의 회전속도를 제어하거나 실외배관온도에 의거하여 실외팬만의 회전속도를 제어하여 일측의 열교환기의 열교환율만을 제어하는 기술적 구성이므로, 실내열교환기와 실외열교환기의 열교환율이 균형을 이루도록 제어하는 것이 매우 어렵다. 따라서, 종래기술은 각 열교환기의 효율 및 열교환율, 그리고 공기조화기의 전체적인 공조효율을 저하시키는 문제점이 있었다.However, the conventional techniques as described above control the rotational speed of the indoor fan only based on the indoor piping temperature while ignoring the indoor heat exchange rate or the outdoor heat exchange rate at all, or the rotational speed of the outdoor fan only based on the outdoor piping temperature. Since it is a technical configuration to control only the heat exchange rate of the heat exchanger of one side by controlling the, it is very difficult to control the heat exchange rate of the indoor heat exchanger and the outdoor heat exchanger to balance. Therefore, the prior art has a problem of lowering the efficiency and heat exchange rate of each heat exchanger, and the overall air conditioning efficiency of the air conditioner.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로, 본 발명의 목적은 공기조화기의 실내열교환기의 열교환율과 실외열교환기의 열교환율을 종합적으로 판단하여 실내팬 및 실외팬의 회전속도를 연동제어함으로써, 최적의 공조효율을 얻을 수 있도록 하는 공기조화기의 송풍팬 제어방법을 제공하는 데 있다.The present invention is to solve the above conventional problems, an object of the present invention is to determine the heat exchange rate of the indoor heat exchanger and the heat exchanger of the indoor heat exchanger of the air conditioner comprehensively to determine the rotational speed of the indoor fan and the outdoor fan By interlocking control, to provide a fan control method of the air conditioner to obtain the optimum air conditioning efficiency.
상기 목적을 달성하기 위한 본 발명은, 실내열교환기 및 실외열교환기의 배관온도를 감지하고, 감지된 배관온도에 의거하여 실내팬 및 실외팬의 회전속도를 제어함으로써, 냉방운전시의 실내열교환기와 실외열교환기의 열교환율을 제어하는 공기조화기의 송풍팬 제어방법에 있어서, 실내열교환기의 배관온도 및 실외열교환기의 배관온도를 감지하는 배관온도 감지단계; 배관온도 감지단계에서 감지된 실내열교환기의 배관온도 및 실외열교환기의 배관온도에 의거하여 실내열교환기의 열교환율 및 실외열교환기의 열교환율을 판단하는 열교환율 판단단계; 열교환율 판단단계의 판단결과에 따라 실내열교환기의 열교환율과 실외열교환기의 열교환율이 균형을 이루도록 실내팬과 실외팬의 회전속도를 연동제어하는 송풍팬 구동단계를 포함하고, 열교환율 판단단계에서는, 배관온도가 설정범위이내이면 열교환율이 정성범위, 배관온도가 상한치보다 높으면 열교환율이 과소범위, 배관온도가 하한치이하이면 열교환율이 과도범위에 있다고 판단하며, 송풍팬 구동단계는, 실내열교환기의 열교환율이 정상범위이면, 실내팬 및 실외팬(25)을 현재의 속도로 제어하는 단계; 실내열교환기 및 실외열교환기의 열교환율이 과도범위이면, 실내팬 및 실외팬의 회전속도를 1단계씩 감소시키는 단계; 실내열교환기 및 실외열교환기 및 실외열교환기의 열교환율이 과소범위이면, 실내팬 및 실외팬의 회전속도를 1단계씩 증가시키는 단계; 일측 열교환기의 열교환율이 과소범위이고 타측 열교환기의 열교환율이 과도범위이면, 일측 송풍팬의 회전속도를 1단계 증가시키고, 타측 송풍팬의 회전속도를 1단계 감소시키는 단계; 실외열교환기의 열교환율이 정상범위이고 실내열교환기의 열교환율이 과도범위이면, 실내팬의 회전속도를 현재속도로 유지하고 실외팬의 회전속도를 1단계 감소시키는 단계; 실외열교환기의 열교환율이 정상범위이고 실내열교환기의 열교환율이 과소범위이면, 실내팬의 회전속도를 현재의 속도로 유지하고 실외팬의 회전속도를 1단계 증가시키는 단계로 이루어진 것을 특징으로 한다.The present invention for achieving the above object, by detecting the pipe temperature of the indoor heat exchanger and the outdoor heat exchanger, and by controlling the rotation speed of the indoor fan and the outdoor fan based on the detected pipe temperature, the indoor heat exchanger during the cooling operation A method of controlling a blower fan in an air conditioner for controlling a heat exchange rate of an outdoor heat exchanger, the method comprising: a pipe temperature sensing step of detecting a pipe temperature of an indoor heat exchanger and a pipe temperature of an outdoor heat exchanger; A heat exchange rate determining step of determining a heat exchange rate of the indoor heat exchanger and a heat exchange rate of the outdoor heat exchanger based on the pipe temperature of the indoor heat exchanger and the pipe temperature of the outdoor heat exchanger detected in the pipe temperature detection step; And a blower fan driving step of interlocking and controlling the rotational speeds of the indoor fan and the outdoor fan so that the heat exchange rate of the indoor heat exchanger and the heat exchange rate of the outdoor heat exchanger are balanced according to the determination result of the heat exchange rate determining step. If the pipe temperature is within the set range, the heat exchange rate is in the qualitative range, if the pipe temperature is higher than the upper limit, the heat exchange rate is in the under range, and if the pipe temperature is lower than the lower limit, the heat exchange rate is in the transient range. If the heat exchange rate of the heat exchanger is within a normal range, controlling the indoor fan and the outdoor fan 25 at a current speed; If the heat exchange rate of the indoor heat exchanger and the outdoor heat exchanger is in the transient range, reducing the rotation speed of the indoor fan and the outdoor fan by one step; If the heat exchange rate of the indoor heat exchanger and the outdoor heat exchanger and the outdoor heat exchanger is in an underrange range, increasing the rotational speed of the indoor fan and the outdoor fan by one step; If the heat exchange rate of the one side heat exchanger is in an underrange range and the heat exchange rate of the other side heat exchanger is in the transient range, increasing the rotational speed of one blower fan by one step and reducing the rotational speed of the other blower fan by one step; If the heat exchange rate of the outdoor heat exchanger is in the normal range and the heat exchange rate of the indoor heat exchanger is in the transient range, maintaining the rotational speed of the indoor fan at the current speed and reducing the rotational speed of the outdoor fan by one step; If the heat exchange rate of the outdoor heat exchanger is in the normal range and the heat exchange rate of the indoor heat exchanger is in the low range, the step of maintaining the rotational speed of the indoor fan at the current speed and increasing the rotational speed of the outdoor fan by one step .
제1도는 본 발명에 적용되는 공기조화기의 운전제어장치의 구성을 나타낸 제어블럭도이다.1 is a control block diagram showing a configuration of an operation control apparatus of an air conditioner applied to the present invention.
제2도는 본 발명에 따른 공기조화기의 송풍팬 제어방법을 설명하기 위한 플로우챠트이다.2 is a flow chart for explaining a blowing fan control method of the air conditioner according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 실내측제어부 11 : 키이압력부10: indoor control part 11: key pressure part
12 : 실내배관온도감지부 13 : 실내온도감지부12: indoor piping temperature sensing unit 13: indoor temperature sensing unit
14 : 실내팬구동부 15 : 살내팬.14: indoor fan drive unit 15: flesh pan.
16 : 표시부 20 : 실외측제어부16 display unit 20 outdoor control unit
21 : 실외배관온도감지부 22 : 압축기구동부21: outdoor piping temperature sensing unit 22: compressor driving unit
23 : 압축기 24 : 실외팬구동부23: compressor 24: outdoor fan drive unit
25 : 실외팬25: outdoor fan
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본발명에 적용되는 공기조하기의 운전제어장치의 개략적인 제어블럭도이다.1 is a schematic control block diagram of an air conditioning operation control apparatus applied to the present invention.
본 발명에 따른 공기조화기의 운전제어장치는, 제1도에 도시된 바와 같이, 실내측유니트의 전반적인 동작을 제어하는 실내측제어부(10), 원하는 운전기능을 선택하기 위한 키이입력부(11), 실내열교환기의 배관온도를 감지하는 실내배관온도 감지부(12), 실내온도를 감지하는 실내온도감지부(13), 실내팬(15)을 가변속도로 구동하는 실내팬구동부(14), 공기조화기의 현재의 동작상태를 표시하는 표시부(16), 실외측유니트의 전반적인 동작을 제어하는 실외측제어부(20), 실외열교환기의 배관온도를 감지하는 실외배관온도감지부(21), 냉각싸이클의 일요소를 이루는 압축기(23)를 구동하는 압축기구동부(22), 그리고 실외팬(25)을 구동하는 실외팬구동부(24)로 이루어진다. 전술한 구성에서, 실내팬구동부(14) 및 실외팬구동부(24)는 각각 실내측제어부(10) 및 실외측제어부(20)의 제어에 따라 실내팬(15) 및 실외팬(25)의 속도를 변경시킬 수가 있으며, 실내측제어부(10)와 실외측제어부(20)는 감지된 온도신호를 비롯하여 각종 정보를 신호선(17)을 통하여 교환한다. 실내팬(15) 및 실외팬(25)의 회전속도는 여러 단계로 나누어져 단계별로 가변제어된다.The operation control apparatus of the air conditioner according to the present invention, as shown in Figure 1, the indoor control unit 10 for controlling the overall operation of the indoor unit, the key input unit 11 for selecting a desired operation function , Indoor piping temperature sensing unit 12 for detecting the pipe temperature of the indoor heat exchanger, Indoor temperature sensing unit 13 for detecting the indoor temperature, Indoor fan drive unit 14 for driving the indoor fan 15 at a variable speed, air Display unit 16 for displaying the current operating state of the conditioner, the outdoor control unit 20 for controlling the overall operation of the outdoor unit, the outdoor pipe temperature sensing unit 21 for sensing the pipe temperature of the outdoor heat exchanger, cooling Compressor driver 22 for driving compressor 23 that forms one element of the cycle, and outdoor fan driver 24 for driving outdoor fan 25. In the above-described configuration, the indoor fan driver 14 and the outdoor fan driver 24 are controlled by the speed of the indoor fan 15 and the outdoor fan 25 under the control of the indoor control unit 10 and the outdoor control unit 20, respectively. The indoor control unit 10 and the outdoor control unit 20 exchanges various types of information including the sensed temperature signal through the signal line 17. The rotation speeds of the indoor fan 15 and the outdoor fan 25 are divided into several stages and are variablely controlled in stages.
제2도는 본발명에 따른 공기조화기의 송풍팬 제어방법을 설명하기 위한 플로우챠트이다. 이하에서는 도 2를 참조하여 본 발명의 작용효과를 상세히 설명한다.2 is a flowchart for explaining a blowing fan control method of the air conditioner according to the present invention. Hereinafter, with reference to Figure 2 will be described in detail the effect of the present invention.
먼저, 실내팬(15) 및 실외팬(25)이 모두 구동되어 공기조화기의 냉난방운전이 수행되는 상태에서 실내배관온도감지부(12) 및 실외배관온도감지부(21)를 통하여 실내열교환기의 배관온도 및 실외열교환기의 배관온도를 감지한다.First, both the indoor fan 15 and the outdoor fan 25 are driven to perform an air conditioning operation of the air conditioner through the indoor pipe temperature sensing unit 12 and the outdoor pipe temperature sensing unit 21. Detect the pipe temperature and the pipe temperature of the outdoor heat exchanger.
실내외배관온도가 감지되면, 단계 S1에서 실내열교환기의 배관온도(TID)가 소정의 하한치(X2)와 상한치(X1) 사이에 존재하는 경우에는 현재의 열교환율이 정상범위라고 판단하고, 단계 S2 및 S3로 진행하여 실내팬(15) 및 실외팬(25)을 현재의 속도로 운전시킨다.When the indoor and outdoor piping temperature is detected, if the pipe temperature T ID of the indoor heat exchanger is present between the predetermined lower limit value X 2 and the upper limit value X 1 in step S1, it is determined that the current heat exchange rate is in the normal range. In step S2 and S3, the indoor fan 15 and the outdoor fan 25 are driven at the current speed.
만일, 단계 S1의 판단결과, 실내배관온도(TID)가 상한치와 하한치(x1-x2) 사이의 범위를 벗어난 경우에는 단계 S4로 진행하여 실외배관온도(TOD)가 소정의 상, 하한치(y1-y2) 사이에 존재하는 지를 판단한다. 단계 S4의 판단결과, 실외배관온도(TOD)가 상한치(y1)와 하한치(y2) 사이의 범위에 존재하면, 단계 S5로 진행하여 실내배관온도(TID)가 상한치(x1) 이상인지를 판단한다.If, as a result of the determination in step S1, the indoor piping temperature T ID is out of the range between the upper limit value and the lower limit value x1-x2, the process proceeds to step S4, where the outdoor piping temperature T OD is a predetermined upper and lower limit value ( It is determined whether there exists between y1-y2). As a result of the determination in step S4, if the outdoor pipe temperature T OD is in the range between the upper limit y1 and the lower limit y2, the process proceeds to step S5 to determine whether the indoor pipe temperature T ID is equal to or higher than the upper limit value x1. To judge.
단계 S5의 판단결과, 실내배관온도(TID)가 상기 상한치(x1)이상인 경우에는 현재 실외열교환기에서는 열교환이 정상적으로 이루어지는 반면에 실내열교환기에서는 열교환이 충분하게 이루어지지 않고 있다고 판단한다. 따라서, 이 경우에는 단계 S8 및 S9로 진행하여 실내팬의 회전속도를 현재의 속도로 유지시키는 반면에 실외팬(25)의 회전속도를 일단계 증가시키는데, 이에 따라 실외측의 열교환율이 향상되어 실내측의 열교환율도 더불어 향상되게 된다.As a result of the determination in step S5, when the indoor piping temperature T ID is equal to or higher than the upper limit value x1, it is determined that heat exchange is normally performed in the outdoor heat exchanger, whereas heat exchange is not sufficiently performed in the indoor heat exchanger. Therefore, in this case, the process proceeds to steps S8 and S9 to maintain the rotational speed of the indoor fan at the current speed while increasing the rotational speed of the outdoor fan 25 by one step, thereby improving the heat exchange rate of the outdoor side. The heat exchange rate on the indoor side is also improved.
단계 S5의 판단결과, 실내배관온도 (TID)가 하한치(x2)이하인 경우에는 현재 실외열교환기에서는 열교환이 적정하게 이루어지는 반면에 실내열교환기에서는 열교환이 과다하게 이루어지고 있다고 판단한다. 따라서, 이 경우에는 단계 S6 및 S7로 진행하여 실내팬(15)은 현재의 속도를 유지시키는 반면에 실외팬(25)은 속도를 일단계 감소시키는데, 이에 따라 실외측의 열교환율이 낮아져서 실내측의 열교환율도 더불어 낮아지게 된다.As a result of the determination in step S5, when the indoor piping temperature (T ID ) is lower than the lower limit value (x2), it is determined that the heat exchange is properly performed in the outdoor heat exchanger while the heat exchange is excessively performed in the indoor heat exchanger. Therefore, in this case, the process proceeds to steps S6 and S7, while the indoor fan 15 maintains the current speed while the outdoor fan 25 decreases the speed by one step, thereby lowering the heat exchange rate of the outdoor side to the indoor side. The heat exchange rate of is also lowered.
단계 S4로 되돌아가서 실외배관온도(TOD)가 상기 상한치와 하한치 사이의 범위(y1-y2)를 벗어나 경우에는 단계 S10으로 진행하여 실내배관온도(TID)가 상한치(x1)이상인지 또는 하한치(x2)이하인지를 판단한다. 단계 S10의 판단결과, 실내배관온도(TID)가 하한치(x2)이하이면 단게 S11로 진행하여 실외배관온도(TOD)가 상한치(y1)이상인지 또는 하한티(y2)이하인지를 판단한다.Returning to step S4, if the outdoor piping temperature T OD is out of the range y1-y2 between the upper limit value and the lower limit value, the flow proceeds to step S10 to determine whether the indoor piping temperature T ID is equal to or greater than the upper limit value x1 or the lower limit value. (x2) or less. As a result of the determination in step S10, if the indoor piping temperature T ID is less than or equal to the lower limit value x2, the process proceeds to step S11 to determine whether the outdoor piping temperature T OD is greater than or equal to the upper limit y1 or less than or equal to the lower limit yy2. .
단계 S11의 판단결과, 실외배관온도(TOD)가 상한치(y1)이상인 경우에는 현재 실내열교환기에서는 열교환이 과다하게 이루어지고 있는 반면에 실외열교환기에서는 열교환이 충분히 이루어지지 않고 있다고 판단한다. 따라서, 이 경우에는 단계 S14 및 S15로 진행하여 실내팬(15)은 현재의 속도를 일단계 감소시키는 반면에 실외팬(25)은 속도를 일단계 증가시키는데, 이에 따라 실내외측의 열교환율이 균형을 유지할 수 있게 된다.As a result of the determination in step S11, when the outdoor pipe temperature T OD is higher than the upper limit y1, it is determined that heat exchange is excessively performed in the indoor heat exchanger, whereas heat exchange is not sufficiently performed in the outdoor heat exchanger. Therefore, in this case, the process proceeds to steps S14 and S15, where the indoor fan 15 decreases the current speed by one step, while the outdoor fan 25 increases the speed by one step. It can be maintained.
만일, 단계 S11의 판단결과 실외배관온도(TOD)가 하한치(y2)이하인 경우에는 현재 실내 및 실외열교환기에서 모두 열교환이 과도하게 이루어지고 있다고 판단한다. 따라서, 이 경우에는 단계 S12 및 S13으로 진행하여 실내팬(15) 및 실외팬(25)의 속도를 일단계씩 낮추게 된다. 이에 따라, 실내외측의 열교환율이 균형을 유지하면서, 실내열교환기와 실외열교환기에서 모두 적정한 수준으로 열교환이 이루어지게 된다If it is determined in step S11 that the outdoor pipe temperature T OD is lower than or equal to the lower limit y2, it is determined that heat exchange is excessively performed in both the indoor and outdoor heat exchangers. Therefore, in this case, the process proceeds to steps S12 and S13 to lower the speed of the indoor fan 15 and the outdoor fan 25 by one step. Accordingly, the heat exchange rate of the indoor and the outside is balanced, and the heat exchange is performed at an appropriate level in both the indoor heat exchanger and the outdoor heat exchanger.
단계 S10의 판단결과, 만일 실내배관온도(TID)가 상한치(x1)이상인 경우에는 단계 S16으로 진행하여 실외배관온도(TOD)가 상한치(y1)이상인지 또는 하한치(y2)이하인지를 판단한다. 단계 S16의 판단결과, 실외배관온도(TOD)가 하한치(y2)이하인 경우에는 현재 실내열교환기에서는 열교환이 충분하게 이루어지고 있지 않은 반면에 실외열교환기에는 열교환이 과도하게 이루어지고 있다고 판단한다. 따라서, 이 경우에는 단계 S17과 S18로 진행하여 실내팬(15)은 현재의 속도를 일단계 증가시키는 반면에 실외팬(25)은 속도를 일단계 감소시키는데, 이에 따라 실내외측의 열교환율이 균형을 유지한 채로 실내열교환기와 실외열교환기에서 모두 적정한 수준으로 열교환이 일어나게 된다.As a result of the determination in step S10, if the indoor piping temperature T ID is higher than the upper limit value x1, the process proceeds to step S16 to determine whether the outdoor piping temperature T OD is higher than the upper limit y1 or lower than the lower limit y2. do. As a result of the determination in step S16, when the outdoor pipe temperature T OD is lower than or equal to the lower limit y2, it is determined that heat exchange is not sufficiently performed in the indoor heat exchanger, whereas heat exchange is excessively performed in the outdoor heat exchanger. Therefore, in this case, the process proceeds to steps S17 and S18, where the indoor fan 15 increases the current speed by one step, while the outdoor fan 25 decreases the speed by one step, thereby balancing the heat exchange rate between the inside and the outside. Heat exchange occurs at an appropriate level in both the indoor heat exchanger and the outdoor heat exchanger while maintaining.
단계 S16의 판단결과, 실외배관온도(TOD)가 상한치(y1)이상인 경우에는 현재 실내 및 실외열교환기에서 모두 열교환이 충분하게 이루어지지 않고 있다고 판단할 수가 있다. 따라서, 이 경우에는 단계 S19 및 S20으로 진행하여 실내팬(15) 및 실외팬(25)의 속도를 일단계씩 증가시키게 된다. 이에 따라, 실내열교환기와 실외열교환기의 열교환율이 균형을 유지한 채로 각 열교환기의 열교환율이 증가하고, 이에 따라 공기조화기 전체의 열교환율 및 공조효율이 증가하게 된다.As a result of the determination in step S16, when the outdoor pipe temperature T OD is equal to or higher than the upper limit y1, it may be determined that heat exchange is not sufficiently performed in both the indoor and outdoor heat exchangers. Therefore, in this case, the process proceeds to steps S19 and S20 to increase the speed of the indoor fan 15 and the outdoor fan 25 by one step. Accordingly, the heat exchange rate of each heat exchanger is increased while the heat exchange rates of the indoor heat exchanger and the outdoor heat exchanger are balanced, thereby increasing the heat exchange rate and the air conditioning efficiency of the entire air conditioner.
이상에서는 단지 냉방운전시의 열교환에 대해서 설명하였지만, 히트펌프식 공기조화기로 난방운전을 수행하는 경우에도 상기의 기술사상을 그대로 적용하여 실내팬과 실외팬의 연동제어에 의해 실내열교환기 및 실외열교환기에서 모두 효율적인 열교환이 이루어지도록 함으로써, 공기조화기 전체의 공조효율을 향상시킬 수 있다.In the above, only the heat exchange during the cooling operation has been described. However, even when the heating operation is performed by a heat pump type air conditioner, the above technical concept is applied as it is. By making efficient heat exchange in all the air conditioners, the air conditioning efficiency of the whole air conditioner can be improved.
이상에서 상세히 설명한 바와 같이, 본 발명에 따른 공기조화기의 송풍팬 제어방법은 공기조화기의 실내측 열교환율과 실외측 열교환율을 종합적으로 판단하고 이에 의거하여 실내팬(15)과 실외팬(25)의 속도를 연동제어함으로써, 최적의 공조효율을 얻을 수 있는 효과가 있다.As described in detail above, the blowing fan control method of the air conditioner according to the present invention comprehensively determines the indoor heat exchange rate and the outdoor heat exchange rate of the air conditioner and based on the indoor fan 15 and the outdoor fan ( By controlling the speed of 25), there is an effect that an optimum air conditioning efficiency can be obtained.
Claims (1)
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| KR1019960004231A KR0182743B1 (en) | 1996-02-22 | 1996-02-22 | Control method for vent fan of an airconditioner |
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| KR1019960004231A KR0182743B1 (en) | 1996-02-22 | 1996-02-22 | Control method for vent fan of an airconditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100897612B1 (en) * | 2002-07-03 | 2009-05-14 | 엘지전자 주식회사 | Control Method Of Initial Room Cooler Operation For Air Conditioner |
| KR20210106141A (en) * | 2020-02-20 | 2021-08-30 | 엘지전자 주식회사 | Air conditioner and control method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100488015B1 (en) * | 2002-08-01 | 2005-05-06 | 엘지전자 주식회사 | Method for power saving motion of air canditioner |
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1996
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100897612B1 (en) * | 2002-07-03 | 2009-05-14 | 엘지전자 주식회사 | Control Method Of Initial Room Cooler Operation For Air Conditioner |
| KR20210106141A (en) * | 2020-02-20 | 2021-08-30 | 엘지전자 주식회사 | Air conditioner and control method thereof |
| US11898767B2 (en) | 2020-02-20 | 2024-02-13 | Lg Electronics Inc. | Air conditioner and a method for controlling an air conditioner |
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