KR20010095732A - Heating cycle control method for airconditioner - Google Patents
Heating cycle control method for airconditioner Download PDFInfo
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- KR20010095732A KR20010095732A KR1020000019046A KR20000019046A KR20010095732A KR 20010095732 A KR20010095732 A KR 20010095732A KR 1020000019046 A KR1020000019046 A KR 1020000019046A KR 20000019046 A KR20000019046 A KR 20000019046A KR 20010095732 A KR20010095732 A KR 20010095732A
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- temperature
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- compressor
- outdoor fan
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
Abstract
Description
본 발명은 공기조화기의 난방운전제어방법에 관한 것으로, 더욱 상세하게는 공기조화기의 과부하 조건에서 실내배관온도에 의해서 난방운전을 제어하여 부품의손상을 방지하면서 난방효율을 높일 수 있는 공기조화기의 난방운전제어방법에 관한 것이다.The present invention relates to a heating operation control method of an air conditioner, and more particularly, an air conditioner that can increase heating efficiency while preventing damage to components by controlling a heating operation by an indoor piping temperature under an overload condition of an air conditioner. It relates to a heating operation control method of the machine.
종래 공기조화기는 도 1에 도시하고 있는 바와 같이, 실내온도를 감지하는 실내온도감지부(1)와, 상기 실내온도감지부(1)의 감지신호를 입력하고 기설정되어 있는 설정온도와 비교하여 공기조화기의 운전을 위한 부하구동부(5)를 동작시키는 마이크로컴퓨터(3)를 포함한다. 또한, 마이크로컴퓨터(3)의 동작전원을 공급하는 전원부(7)를 포함하고 있다.As shown in FIG. 1, a conventional air conditioner inputs a room temperature sensing unit 1 for sensing an indoor temperature and a detection signal of the indoor temperature sensing unit 1, and compares it with a preset set temperature. And a microcomputer 3 for operating the load driver 5 for the operation of the air conditioner. It further includes a power supply unit 7 for supplying the operating power of the microcomputer 3.
이렇게 구성된 종래 공기조화기에서 난방운전을 수행할 때(제 100 단계), 상기 실내온도감지부(1)에서 검출된 실내온도가 기설정되어 있는 설정온도와 비교하고, 실내온도가 설정온도보다 낮을때 압축기 및 실내외 팬의 동작을 제어하게 된다.When the heating operation is performed in the conventional air conditioner configured as described above (step 100), the indoor temperature detected by the indoor temperature detecting unit 1 is compared with the preset temperature, and the indoor temperature is lower than the preset temperature. When the compressor and the indoor and outdoor fans are controlled.
즉, 마이크로컴퓨터(3)는 상기 실내온도감지부(1)에서 검출한 실내온도와 기설정되어 있는 온도를 비교하고, 실내온도가 설정온도보다 높은지를 판단한다(제 110 단계).That is, the microcomputer 3 compares the indoor temperature detected by the indoor temperature detecting unit 1 with a preset temperature, and determines whether the indoor temperature is higher than the set temperature (step 110).
상기 제 110 단계에서 검출된 실내온도가 설정온도보다 높을때, 압축기와 실외팬은 정지시키고 실내팬은 약풍으로 운전을 제어한다(제 120 단계).When the indoor temperature detected in the step 110 is higher than the set temperature, the compressor and the outdoor fan are stopped and the indoor fan controls the operation by the mild wind (step 120).
그러나 상기 제 110 단계에서 실내온도가 설정온도보다 낮을때, 압축기와 실외팬은 무조건 운전하고, 실내팬은 설정풍량으로 운전을 제어한다.However, when the indoor temperature is lower than the set temperature in step 110, the compressor and the outdoor fan are unconditionally operated, and the indoor fan controls the operation with the set air volume.
즉, 종래 공기조화기의 난방운전은, 실내온도와 설정온도의 비교에 의해서 실내온도가 설정온도보다 낮은 구간에서는 압축기, 실내외 팬으로 구성된 부하구동부(5)를 무조건 구동시키고, 실내온도가 설정온도보다 높은 구간에서는 압축기와 실외팬의 동작을 정지시키는 방법으로 제어되었다.That is, in the heating operation of the conventional air conditioner, the load driving unit 5 consisting of the compressor and the indoor / outdoor fan is unconditionally driven in the section where the indoor temperature is lower than the set temperature by comparing the indoor temperature and the set temperature, and the indoor temperature is the set temperature. In the higher section, it was controlled by stopping the operation of compressor and outdoor fan.
따라서 종래 공기조화기의 난방운전은, 실내온도와 설정온도의 비교에 의해서 부하구동부(5)를 온/오프 시키는 방법을 사용하기 때문에, 난방운전에 따른 과부하 발생을 감시할 수 없었다. 즉, 종래의 공기조화기에서는 난방운전시 과부하가 발생되었을때, 압축기의 전류가 상승하면서 압축기의 안전장치가 동작하므로서 난방운전이 정지되는 문제점이 발생되었다.Therefore, since the heating operation of the conventional air conditioner uses a method of turning on / off the load driver 5 by comparing the room temperature with the set temperature, it is not possible to monitor the overload occurrence due to the heating operation. That is, in the conventional air conditioner, when an overload occurs during the heating operation, a problem arises in that the heating operation is stopped because the safety device of the compressor operates while the current of the compressor rises.
또한, 압축기의 안전장치가 동작되면서 사용자 요구에 맞는 난방운전이 이루어지지 않게되고, 결과적으로 제품에 대한 신뢰도를 저하시키는 문제점이 있었다.In addition, while the safety device of the compressor is operated, the heating operation is not made according to the user's requirements, and as a result, there is a problem of lowering reliability of the product.
따라서 본 발명의 목적은 실내배관온도에 의해서 난방운전을 제어하여 과부하에 의한 부품의 손상을 방지하면서 난방효율을 높일 수 있는 공기조화기의 난방운전제어방법을 제공함에 있다.Accordingly, an object of the present invention is to provide a heating operation control method of an air conditioner that can control heating operation by indoor piping temperature and prevent heating of components and increase heating efficiency.
도 1은 종래 기술에 따른 공기조화기의 구성도,1 is a block diagram of an air conditioner according to the prior art,
도 2는 종래 기술에 따른 공기조화기의 난방운전 제어 흐름도,Figure 2 is a flow chart of the heating operation control of the air conditioner according to the prior art,
도 3은 본 발명에 따른 공기조화기의 구성도,3 is a configuration diagram of an air conditioner according to the present invention;
도 4는 본 발명에 따른 공기조화기의 난방운전 제어 흐름도.4 is a heating operation control flowchart of the air conditioner according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1,21 : 실내온도감지부 3,23 : 마이크로컴퓨터1,21: Indoor temperature sensing unit 3,23: Microcomputer
5,25 : 부하구동부 7,27 : 전원부5,25: load driving part 7,27: power supply part
29 : 배관온도감지부29: pipe temperature detection unit
상기 목적을 달성하기 위한 본 발명에 따른 공기조화기의 난방운전제어방법은, 실내온도를 검출하는 단계와; 배관온도를 검출하는 단계와; 실내온도를 기설정된 온도와 비교하고, 실내온도가 설정온도보다 낮을때, 검출된 배관온도에 기초해서 과부하상태인지를 판단하는 단계와; 상기 단계에서 과부하상태로 판단되면, 부하의 동작상태를 조절하는 단계를 포함함을 특징으로 한다.Heating operation control method of the air conditioner according to the present invention for achieving the above object comprises the steps of: detecting the room temperature; Detecting a pipe temperature; Comparing the indoor temperature with a preset temperature, and determining whether an overload condition is based on the detected pipe temperature when the indoor temperature is lower than the preset temperature; If it is determined that the overload state in the step, it characterized in that it comprises the step of adjusting the operating state of the load.
본 발명은, 상기 과부하상태를, 검출된 배관온도가 소정온도(T3)보다 높고 소정온도(T2)보다 낮을때의 제 1 과부하상태와; 배관온도가 소정온도(T2)보다 높고 소정온도(T1)보다 낮을때의 제 2 과부하상태와; 배관온도가 소정온도(T1)보다 높을때의 제 3 과부하상태로 판단하고, 상기 부하의 동작상태 조절은, 상기 제 1 과부하상태에서는, 압축기의 주파수를 제한 조절하며; 상기 제 2 과부하상태에서는, 실외팬의 동작을 정지시키고; 상기 제 3 과부하상태에서는 압축기 및 실외팬이 정지되도록 제어함을 특징으로 한다.The present invention provides an overload condition comprising: a first overload state when a detected pipe temperature is higher than a predetermined temperature T3 and lower than a predetermined temperature T2; A second overload state when the pipe temperature is higher than the predetermined temperature T2 and lower than the predetermined temperature T1; Judging as a third overload state when the pipe temperature is higher than a predetermined temperature T1, and adjusting the operating state of the load, in the first overload state, restricts and adjusts the frequency of the compressor; In the second overload state, operation of the outdoor fan is stopped; In the third overload state, the compressor and the outdoor fan are controlled to be stopped.
이하 첨부한 도면을 참조하여 본 발명에 따른 공기조화기의 난방운전제어방법에 대해서 상세하게 설명한다.Hereinafter, a heating operation control method of an air conditioner according to the present invention will be described in detail with reference to the accompanying drawings.
도 3은 본 발명에 따른 공기조화기의 난방운전 제어를 위한 구성도이다.3 is a block diagram for heating operation control of the air conditioner according to the present invention.
본 발명의 공기조화기는, 실내온도를 감지하는 실내온도감지부(21)와, 실내측 열교환기(도시하지 않음)의 배관온도를 검출하는 배관온도감지부(29)와, 상기 실내온도감지부(21)에서 검출된 실내온도와 상기 배관온도감지부(29)에서 검출된 배관온도를 비교, 분석하여 부하구동부(25)의 동작을 제어하는 마이크로컴퓨터(23)를 포함한다. 상기 부하구동부(25)는, 압축기, 실외팬, 실내팬 등을 포함한다. 그리고 상기 마이크로컴퓨터(23)에 전원을 공급하는 전원부(27)가 구비되고 있다.The air conditioner of the present invention includes an indoor temperature sensing unit 21 for detecting an indoor temperature, a piping temperature sensing unit 29 for detecting a piping temperature of an indoor side heat exchanger (not shown), and the indoor temperature sensing unit. And a microcomputer 23 for controlling the operation of the load driver 25 by comparing and analyzing the room temperature detected by the reference numeral 21 with the pipe temperature detected by the pipe temperature detection unit 29. The load driver 25 includes a compressor, an outdoor fan, an indoor fan, and the like. A power supply unit 27 for supplying power to the microcomputer 23 is provided.
다음은 상기 구성으로 이루어진 본 발명에 따른 공기조화기의 난방운전 제어 과정에 대해서 설명한다.Next will be described the heating operation control process of the air conditioner according to the present invention having the above configuration.
전원부(27)에서 마이크로컴퓨터(23)에 전원을 공급하면, 상기 마이크로컴퓨터(23)의 제어에 의해서 난방운전이 수행된다(제 200 단계). 즉, 압축기, 실내외 팬이 동작되며, 상기 구성들을 제어하는 부하구동부(25)가 구동된다. 그리고 상기 제 200 단계에 의한 난방운전이 수행되고 있지 않은 경우에는 마이크로컴퓨터(23)에서 상기 부하구동부(25)에 오프신호를 인가하면서 압축기, 실내외 팬의 동작이 정지상태가 된다(제 250 단계).When the power supply unit 27 supplies power to the microcomputer 23, the heating operation is performed under the control of the microcomputer 23 (step 200). That is, the compressor, the indoor and outdoor fans are operated, and the load driver 25 controlling the above components is driven. When the heating operation according to the 200th step is not performed, the operation of the compressor and the indoor / outdoor fan is stopped while the OFF signal is applied to the load driver 25 by the microcomputer 23 (step 250). .
상기 제 200 단계에 의한 난방운전이 시작되면, 실내온도감지부(21)는 실내온도를 검출하고, 검출한 온도를 마이크로컴퓨터(23)에 인가하는 동작을 일정시간 간격으로 반복해서 수행한다.When the heating operation according to the 200th step is started, the indoor temperature detecting unit 21 repeatedly detects the indoor temperature and applies the detected temperature to the microcomputer 23 at regular intervals.
상기 마이크로컴퓨터(23)는 입력된 실내온도와 난방운전에 따라서 사용자가 설정한 설정온도(또는 난방운전시 기설정되어 저장되어 있는 온도)를 비교한다. 이때 실내온도가 설정온도보다 높을때, 마이크로컴퓨터는 압축기와 실외팬을 정지시키기 위한 제어신호를 부하구동부(25)에 출력하고, 또한 실내팬을 약풍으로 운전시키기 위한 제어신호를 부하구동부(25)에 출력한다.The microcomputer 23 compares the input room temperature with a set temperature set by the user (or a temperature stored and preset during the heating operation) according to the heating operation. At this time, when the indoor temperature is higher than the set temperature, the microcomputer outputs a control signal for stopping the compressor and the outdoor fan to the load driver 25, and also outputs a control signal for driving the indoor fan with weak wind. Output to
상기 부하구동부(25)는, 상기 마이크로컴퓨터의 제어신호에 따라서 압축기와 실외팬을 정지시키고, 실내팬을 약풍으로 조절한다(제 245 단계). 즉, 상기 제 245 단계는, 실내온도가 설정온도보다 높은 경우는, 실내 공기가 따뜻한 경우이므로, 난방사이클을 일시적으로 정지시키는 것이다.The load driving unit 25 stops the compressor and the outdoor fan according to the control signal of the microcomputer, and adjusts the indoor fan to weak wind (step 245). That is, in step 245, when the indoor temperature is higher than the set temperature, the indoor air is warm, and thus the heating cycle is temporarily stopped.
그러나 상기 제 205 단계에서 실내온도가 설정온도보다 낮은 경우에는, 배관온도에 따라서 부하구동부(25)의 운전이 제어된다.However, when the room temperature is lower than the set temperature in step 205, the operation of the load driving unit 25 is controlled according to the pipe temperature.
상기 배관온도감지부(29)는, 상기 난방운전에 따른 난방사이클이 순환될 때, 일정시간 간격으로 실내측 열교환기(도시하지 않음)의 배관온도를 감지하고, 감지된 배관온도를 마이크로컴퓨터(23)에 출력한다.The pipe temperature detecting unit 29 detects a pipe temperature of an indoor heat exchanger (not shown) at a predetermined time interval when the heating cycle according to the heating operation is circulated, and detects the pipe temperature by using a microcomputer ( 23).
따라서 상기 마이크로컴퓨터(23)는, 상기 배관온도감지부(29)에서 검출된 배관온도가 어느정도인지를 판단하는 과정을 수행한다. 이때 배관온도 검출을 위한 기준온도는 T1>T2>T3의 순서를 갖는다.Therefore, the microcomputer 23 performs a process of determining how much the pipe temperature detected by the pipe temperature detecting unit 29 is. At this time, the reference temperature for detecting the pipe temperature has the order of T1> T2> T3.
우선, 제 210 단계에서는 배관온도가 T1보다 높은지를 판단한다. 상기 배관온도는, 난방사이클 상에 순환되는 냉매의 온도이다. 난방사이클 상에서 동작하는 부품의 과부하 조건이 되었을때, 난방사이클을 순환하는 냉매의 열교환이 정상적으로 이루어지지 않게 되면서, 냉매의 온도는 점점 상승하게 된다.First, in step 210 it is determined whether the pipe temperature is higher than T1. The piping temperature is the temperature of the refrigerant circulated on the heating cycle. When an overload condition of a component operating on the heating cycle is reached, the heat exchange of the refrigerant circulating the heating cycle is not normally performed, and the temperature of the refrigerant is gradually increased.
상기 제 210 단계에서 배관온도가 T1보다 높은 경우, 마이크로컴퓨터(23)는 부하구동부(25)에 압축기와 실외팬을 정지시키기 위한 제어신호를 출력한다. 그리고 소정시간(약 3분)동안 난방사이클을 정지시킨다(제 215 단계).When the pipe temperature is higher than T1 in step 210, the microcomputer 23 outputs a control signal to the load driver 25 to stop the compressor and the outdoor fan. The heating cycle is stopped for a predetermined time (about 3 minutes) (step 215).
즉, 상기 제 215 단계는, 난방사이클에 순환되는 냉매가 너무 높은 온도를 가지고 있으며, 이것은 제품의 과부하상태를 의미하는 것이다.That is, in step 215, the refrigerant circulated in the heating cycle has a temperature that is too high, which means that the product is overloaded.
상기 제 210 단계에서 배관온도가 T1보다 낮은 경우, 배관온도가 T2보다 높은지를 판단한다(제 220 단계). 상기 제 220 단계는 검출된 배관온도가 T2보다는 높고, T1보다는 낮은지를 판단하는 구간이다.If the pipe temperature is lower than T1 in step 210, it is determined whether the pipe temperature is higher than T2 (step 220). Step 220 is a section for determining whether the detected pipe temperature is higher than T2 and lower than T1.
상기 제 220 단계의 조건에 맞을때, 마이크로컴퓨터는, 실외팬만을 정지시키는 제어신호를 부하구동부(25)에 출력한다. 즉, 실외팬을 정지시키므로서 제품의부하를 감소시키는 것이다. 이때, 압축기는 운전상태를 유지하며, 실내팬은 사용자가 설정한 풍량으로 조절된다(제 225 단계).When the condition of step 220 is met, the microcomputer outputs a control signal for stopping only the outdoor fan to the load driver 25. That is, the load of the product is reduced by stopping the outdoor fan. At this time, the compressor maintains an operating state, and the indoor fan is adjusted to the air volume set by the user (step 225).
다음, 제 220 단계의 조건에도 맞지 않을때, 마이크로컴퓨터(23)는, 배관온도가 T2보다도 낮고 T3보다 높은지를 판단한다(제 230 단계). 상기 제 230 단계의 조건에 맞으면, 마이크로컴퓨터는 제품 운전의 과부하 발생을 미연에 방지하기 위하여 압축기의 주파수를 낮추어서 운전하고, 실외팬은 운전상태로, 실내팬은 설정풍량으로 조정한다(제 235 단계).Next, when the condition of step 220 is not met, the microcomputer 23 determines whether the pipe temperature is lower than T2 and higher than T3 (step 230). If the condition of step 230 is met, the microcomputer operates by lowering the frequency of the compressor to prevent overloading of the product operation, and adjusts the outdoor fan to the operating state and the indoor fan to the set air volume (step 235). ).
즉, 본 발명은 실내배관온도가 T3 이상이고 T2 이하이면, 제 1 단계의 과부하상태로 압축기의 주파수를 제한 조정한다. 그리고 실내배관온도가 T2 이상이고 T1 이하이면 제 2 단계의 과부하상태로 실외팬은 정지시키고, 압축기는 운전상태를 유지한다. 그리고 실내배관온도가 T1보다도 높은 경우에서는 제 3 단계의 과부하상태로 압축기, 실외팬을 완전히 정지시켜서, 실내 배관온도의 상승에 따른 압축기 전류의 상승을 방지하고, 따라서 과부하조건에서의 압축기의 안전장치의 동작을 미연에 방지한다.That is, the present invention limits the frequency of the compressor to the overload state of the first stage if the indoor piping temperature is above T3 and below T2. If the indoor piping temperature is more than T2 and less than T1, the outdoor fan is stopped by the overload state of the second stage, and the compressor maintains the operation state. If the indoor piping temperature is higher than T1, the compressor and the outdoor fan are completely stopped in the overload state of the third stage to prevent the compressor current from rising due to the increase in the indoor piping temperature, and thus the safety device of the compressor under the overload condition. Prevents the operation of the device in advance.
그리고 실내 배관온도가 T3보다 낮은 경우에는, 난방사이클이 정상적으로 동작하는 단계이므로, 이때는 압축기와 실내팬 그리고 실외팬을 정상적으로 동작시킨다(제 240 단계).When the indoor piping temperature is lower than T3, since the heating cycle is normally operating, the compressor, the indoor fan and the outdoor fan are normally operated (step 240).
이상 설명한 바와 같이, 본 발명은 난방운전시에 과부하조건에서 운전이 이루어지는 것을 미연에 방지하기 위해서 배관온도에 따른 과부하조건을 판단한다. 이때 과부하조건을 단계적으로 구분하여, 압축기의 주파수를 제한해서 운전을 제어하거나 또는 실외팬을 정지시켜서 운전을 제어하거나 또는 압축기 및 실외팬을 소정시간 동안 정지되도록 제어하므로서 난방운전시의 과부하 발생을 억제한다. 따라서 본 발명은 과부하상태의 운전에 따른 압축기 보호장치의 동작을 가능한 억제하여, 효율적인 난방이 이루어지도록 하는 잇점이 있다.As described above, the present invention determines the overload condition according to the pipe temperature in order to prevent the operation in the overload condition at the time of heating operation in advance. At this time, the overload condition is classified step by step, controlling the operation by limiting the frequency of the compressor, controlling the operation by stopping the outdoor fan, or controlling the compressor and the outdoor fan to be stopped for a predetermined time to suppress the occurrence of overload during the heating operation. do. Therefore, the present invention has the advantage that as possible to suppress the operation of the compressor protection device in accordance with the operation of the overload state, the efficient heating is achieved.
Claims (2)
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|---|---|---|---|
| KR1020000019046A KR20010095732A (en) | 2000-04-11 | 2000-04-11 | Heating cycle control method for airconditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020000019046A KR20010095732A (en) | 2000-04-11 | 2000-04-11 | Heating cycle control method for airconditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455934C (en) * | 2002-11-26 | 2009-01-28 | 乐金电子(天津)电器有限公司 | Outdoor for control method for heat pump type air conditioner |
| CN105180359A (en) * | 2015-09-02 | 2015-12-23 | 珠海格力电器股份有限公司 | Control method and device for preventing high temperature, and air conditioner |
| CN112556114A (en) * | 2020-12-01 | 2021-03-26 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and processor |
-
2000
- 2000-04-11 KR KR1020000019046A patent/KR20010095732A/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455934C (en) * | 2002-11-26 | 2009-01-28 | 乐金电子(天津)电器有限公司 | Outdoor for control method for heat pump type air conditioner |
| CN105180359A (en) * | 2015-09-02 | 2015-12-23 | 珠海格力电器股份有限公司 | Control method and device for preventing high temperature, and air conditioner |
| CN112556114A (en) * | 2020-12-01 | 2021-03-26 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and processor |
| CN112556114B (en) * | 2020-12-01 | 2021-11-26 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and processor |
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