KR100502300B1 - Method for controlling blowoff force of air-conditioner used both cooler and heater - Google Patents
Method for controlling blowoff force of air-conditioner used both cooler and heater Download PDFInfo
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- KR100502300B1 KR100502300B1 KR10-2002-0053291A KR20020053291A KR100502300B1 KR 100502300 B1 KR100502300 B1 KR 100502300B1 KR 20020053291 A KR20020053291 A KR 20020053291A KR 100502300 B1 KR100502300 B1 KR 100502300B1
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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
- F24F11/77—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 by controlling the speed of ventilators
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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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- 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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Abstract
본 발명은 냉난방 겸용 에어컨의 풍량 조절방법에 관한 것으로서, 냉난방 겸용 에어컨의 토출구에 온도센서를 설치하여 난방운전시 초기에 토출되는 온기의 토출온도를 직접 측정하여 사람의 체온과 유사한 온도로 설정한 설정온도보다 높을 경우에 설정풍량으로 운전하도록 함으로써 난방운전 중 정지한 후 재가동하거나 초기 작동시 토출되는 온기가 사람의 체온과 유사하여 따뜻한 느낌을 갖도록 하여 쾌적한 난방이 이루어지는 이점이 있다. The present invention relates to a method for adjusting the air volume of a combined air-conditioning and air conditioner, by setting a temperature sensor at a discharge port of a combined air-conditioning and air-conditioning air conditioner and directly measuring the discharge temperature of warmth discharged at the time of heating operation, and setting the temperature to a temperature similar to a human body temperature. When the temperature is higher than the set temperature, it is operated by the set air volume, so that the warmth discharged at the time of restarting after the heating operation or the initial operation is similar to the body temperature of a person, thereby having a comfortable heating.
Description
본 발명은 냉난방 겸용 에어컨의 풍량 조절방법에 관한 것으로서, 보다 상세하게는 냉난방 겸용 에어컨의 토출구에 온도센서를 설치하여 난방운전시 초기에 토출되는 온기의 토출온도를 직접 측정하여 설정온도보다 높을 경우에 설정풍량으로 운전하도록 한 냉난방 겸용 에어컨의 풍량 조절방법에 관한 것이다. The present invention relates to a method for controlling air volume of a combined air-conditioning and air conditioner, and more particularly, by installing a temperature sensor at a discharge port of a combined air-conditioning and air-conditioning unit to directly measure a discharge temperature of warmth discharged at the initial stage of heating operation, when the temperature is higher than a set temperature. The present invention relates to a method for controlling air volume of a combined air-conditioning and air conditioner for operating at a set air volume.
일반적인 에어컨은 액체가 증발할 때 주위의 열을 흡수하는 현상을 이용하여 냉방작용을 하는 것으로서 이러한 냉방작용 이외에도, 제습작용을 함께 수행한다. 그런데, 냉난방 겸용 에어컨의 경우 냉방과 난방의 경우 냉매의 순환경로를 반대로 하여 난방운전시에는 실외의 열을 흡수하여 실내로 방출하게 되고, 냉방운전시에는 실내의 열을 흡수하여 실외로 방출하게 된다. In general, the air conditioner uses the phenomenon of absorbing the surrounding heat when the liquid evaporates, and performs cooling as well as dehumidification. By the way, in the case of air-conditioning combined air-conditioning and cooling and heating, the circulation path of the refrigerant is reversed so that the heat is absorbed and released into the room during the heating operation, and the heat is absorbed and released into the outdoor during the cooling operation. .
이와 같이 냉난방 겸용 에어컨의 난방운전시 실외열교환기에서 주위의 열을 흡수하는 증발과정시 실외열교환기 코일에 성에가 착상되기 때문에 이를 제거하기 위한 제상운전을 수행하게 된다. As the frost is formed on the outdoor heat exchanger coil during the evaporation process of absorbing the surrounding heat in the outdoor heat exchanger during the heating operation of the combined air-conditioning and air conditioning, the defrosting operation is performed to remove the frost.
도 1은 일반적인 냉난방 겸용 에어컨의 냉매순환도이다. 1 is a refrigerant circulation diagram of a general air-conditioning combined air conditioner.
여기에 도시된 바와 같이 실외기(20)는 냉매를 압축시키는 압축기(210)와, 압축기(210)의 출력단에 냉매의 순환 경로를 변경하기 위한 사방변(240)이 설치된다. 그리고, 일측이 사방변(240)과 연결되어 실외에서 열교환이 이루어지는 실외열교환기(40)와, 일측이 사방변(240)과 연결되어 실내에서 열교환이 이루어지는 실내열교환기(30)와, 실내열교환기(30)의 타측과 실외열교환기(40)의 타측간에 매개된 감압장치(50)로 이루어진다. As shown here, the outdoor unit 20 includes a compressor 210 for compressing a refrigerant, and four sides 240 for changing a circulation path of the refrigerant at an output end of the compressor 210. In addition, an outdoor heat exchanger 40 having one side connected to the four sides 240 to heat exchange outdoors, and an indoor heat exchanger 30 having one side connected to the four sides 240 performing heat exchange indoors, and indoor heat exchange The pressure reducing device 50 is provided between the other side of the device 30 and the other side of the outdoor heat exchanger 40.
그리고, 실내열교환기(30)에는 실내온도를 측정하는 실내온도센서(110)와, 실내열교환기(30)의 코일온도를 측정하는 실내열교환기 코일온도센서(120)가 설치되고, 실외열교환기(40)에는 실외온도를 측정하는 실외온도센서(260)와, 실외열교환기(40)의 코일온도를 측정하는 실외열교환기 코일온도센서(270)가 설치된다. In addition, the indoor heat exchanger (30) is provided with an indoor temperature sensor (110) for measuring the indoor temperature, and an indoor heat exchanger coil temperature sensor (120) for measuring the coil temperature of the indoor heat exchanger (30). 40, an outdoor temperature sensor 260 for measuring an outdoor temperature and an outdoor heat exchanger coil temperature sensor 270 for measuring a coil temperature of the outdoor heat exchanger 40 are installed.
위와 같은 냉난방 겸용 에어컨의 냉매순환경로를 살펴보면 다음과 같다. Looking at the coolant net environmental path of the air-conditioning combined air conditioning as described above are as follows.
먼저, 냉방운전시에는 즉, 실선 화살표로 나타낸 바와 같이 압축기에서 압축된 냉매는 사방변(240)에서 실외열교환기(40)로 흐르도록 경로를 설정함에 따라 실외열교환기(40)로 흘러 함유된 열을 방출한 후 감압장치(50)로 보내지고, 다시 실내열교환기(30)로 보내져 액체상태에서 기체상태로 증발되면서 주위의 열을 흡수하는 열교환이 이루어진 후 사방변(240)을 통해 다시 압축기(210)로 보내져 순환하게 된다. First, during the cooling operation, that is, the refrigerant compressed by the compressor as shown by the solid arrow is flowed into the outdoor heat exchanger 40 as the path is set to flow from the four sides 240 to the outdoor heat exchanger 40. After dissipating the heat is sent to the decompression device 50, and again to the indoor heat exchanger (30) is evaporated in a gaseous state in the liquid state is made of heat exchange to absorb the surrounding heat is made through the compressor again through the four sides (240) Sent to 210 to cycle.
이때, 실내에 설치된 실내열교환기(30)에서 주위의 열을 흡수하기 때문에 실내를 냉방하게 된다. At this time, since the indoor heat exchanger 30 installed in the room absorbs the surrounding heat, the room is cooled.
다음으로, 난방운전시에는 점선 화살표로 나타낸 바와 같이 압축기(210)에서 압축된 냉매는 사방변(240)에서 실내열교환기(30)로 흐르도록 경로를 설정함에 따하 실내열교환기(30)로 흘러 함유된 열을 방출한 후 감압장치(50)로 보내지고, 다시 실외열교환기(40)로 보내져 액체상태에서 기체상태로 증발되면서 주위의 열을 흡수하는 열교환이 이루어진 후 사방변(240)을 통해 다시 압축기(210)로 보내져 순환하게 된다.Next, during the heating operation, the refrigerant compressed by the compressor 210 flows to the indoor heat exchanger 30 as the refrigerant flows from the four sides 240 to the indoor heat exchanger 30 as shown by the dotted arrow. After dissipating the contained heat is sent to the decompression device 50, and again to the outdoor heat exchanger (40) is evaporated in a gaseous state in the liquid state is a heat exchange to absorb the surrounding heat is made through the four sides (240) It is sent back to the compressor 210 to circulate.
이때, 실내에 설치된 실내열교환기(30)에서 냉매에 함유된 열을 방출하기 때문에 실내를 난방하게 된다. At this time, since the heat contained in the refrigerant is released from the indoor heat exchanger 30 installed in the room, the room is heated.
이와 같은 에어컨에는 냉난방된 공기를 토출시키는 토출구가 구비되는데 토출구에는 풍향 조절장치로써 실내기의 내부에서부터 나오는 냉기 및 온기의 풍향을 상하방향으로 제어할 수 있도록 유도모터에 의해 작동되는 다수개의 수평날개들이 회동 가능하게 장착되어 있고, 냉기 및 온기의 풍향을 좌우 방향으로 제어할 수 있도록 유도모터에 의해 작동되는 다수개의 수직날개들이 회동 가능하게 장착되어 있다.The air conditioner is provided with a discharge port for discharging air cooled and heated, the discharge port is rotated by a plurality of horizontal wings operated by an induction motor to control the wind direction of the cold and warm air from the interior of the indoor unit in the vertical direction as a wind direction control device It is equipped with a plurality of vertical wings which are operated by an induction motor so as to control the wind direction of cold and warm air in the left and right directions.
한편, 냉난방 겸용 에어컨의 난방운전시 가동 초기에는 냉풍이 발생하는 것을 방지하기 위해 사용자가 설정한 풍량 이하의 낮은 풍량으로 송풍시키면서 실내열교환기의 온도를 측정하여 약 20~30℃ 이상이 될 경우 사용자가 설정한 풍량으로 송풍이 이루어지도록 하고 있다. On the other hand, in order to prevent cold air from occurring during the initial operation during heating operation of a combined air-conditioning and air-conditioning air conditioner, the user measures the temperature of the indoor heat exchanger while blowing at a low air flow rate below the air flow rate set by the user. Air is blown at the air volume set by the user.
그러나, 이와 같이 실내열교환기의 관에 설치된 온도센서의 측정값에 따라 송풍을 하기 때문에 실외온도의 변화로 인한 난방 과부하운전시나 제상운전 후 난방운전 초기에 아직 실내열교환기의 냉각핀이 정상적으로 가열되지 않은 상태에서 송풍이 이루어지기 때문에 냉풍이 송출되어 소비자의 불만이 커지는 문제점이 있다. However, since the air is blown in accordance with the measured value of the temperature sensor installed in the tube of the indoor heat exchanger, the cooling fins of the indoor heat exchanger are not normally heated during the heating overload operation due to the change of the outdoor temperature or the initial heating operation after the defrosting operation. Since the air is blown in a state where there is no cold air is sent out, there is a problem that the discontent of the consumer increases.
본 발명은 상기와 같은 문제점을 해결하기 위해 창작된 것으로서, 본 발명의 목적은 냉난방 겸용 에어컨의 토출구에 온도센서를 설치하여 난방운전시 초기에 토출되는 온기의 토출온도를 직접 측정하여 설정온도보다 높을 경우에 설정풍량으로 운전하도록 한 냉난방 겸용 에어컨의 풍량 조절방법을 제공함에 있다. The present invention was created to solve the above problems, an object of the present invention is to install a temperature sensor in the outlet of the air conditioning combined with air conditioning and heating to directly measure the discharge temperature of the warm air discharged during the heating operation higher than the set temperature In this case, the present invention provides a method of controlling air volume of a combined air-conditioning and air conditioner to operate at a set air volume.
상기와 같은 목적을 실현하기 위한 본 발명의 냉난방 겸용 에어컨의 풍량 조절장치는 냉난방 겸용 에어컨의 토출구에 설치되어 온기의 토출온도를 측정하는 토출온도센서와, 초기 온기의 토출온도와 풍량을 설정하기 위한 입력부와, 가열된 온기를 실내로 토출시키기 위한 송풍팬을 구동시키는 팬모터와, 입력부에서 입력된 설정온도와 토출온도센서에 의해 측정된 토출온도를 비교하여 팬모터를 설정된 풍량에 따라 제어하는 제어부로 이루어진 것을 특징으로 한다.In order to achieve the above object, the airflow control device of the combined air-conditioning and cooling system of the present invention is installed at the outlet of the air-conditioning combined air-conditioning and discharge temperature sensor for measuring the discharge temperature of warmth, and for setting the discharge temperature and air volume of the initial warmth. A control unit for controlling the fan motor according to the set air volume by comparing the input unit, a fan motor for driving a blower fan for discharging the heated warm air into the room, and the discharge temperature measured by the set temperature input from the input unit and the discharge temperature sensor. Characterized in that consisting of.
또한, 냉난방 겸용 에어컨의 풍량 조절방법은 난방운전 풍량과 초기에 토출되는 온기의 토출온도를 설정하는 단계와, 냉난방 겸용 에어컨의 작동상태를 판단하는 단계와, 작동상태를 판단한 결과 난방운전 중 재가동될 경우 팬모터를 저속으로 작동시키는 단계와, 저속으로 작동시키면서 토출구에 설치된 토출온도센서를 통해 토출온도를 측정하는 단계와, 측정된 토출온도와 설정된 토출온도를 비교하는 단계와, 비교한 결과 측정된 토출온도가 설정된 토출온도보다 높을 경우 팬모터를 설정된 풍량으로 작동시키는 단계로 이루어진 것을 특징으로 한다. In addition, the air volume control method of the combined air-conditioning and air-conditioning method is to set the heating operation air flow rate and the discharge temperature of the warm air discharged initially, the step of determining the operating state of the air-conditioning combined air conditioning and the operation state, the result of determining the operating state to be restarted during heating operation In the case of operating the fan motor at a low speed, measuring the discharge temperature through the discharge temperature sensor installed in the discharge port while operating at a low speed, and comparing the measured discharge temperature and the set discharge temperature, the measured result When the discharge temperature is higher than the set discharge temperature is characterized in that the step of operating the fan motor at the set amount of air.
위에서 설정된 토출온도는 35℃ 이상인 것을 특징으로 한다. The discharge temperature set above is characterized in that more than 35 ℃.
위와 같이 이루어진 본 발명은 냉난방 겸용 에어컨에서 난방운전시 초기에 토출되는 온기의 풍량을 조절함에 있어서 토출구에 설치된 토출온도센서를 통해 실질적으로 토출되는 온기를 측정하여 사람의 체온과 유사한 설정온도에 도달하지 않았을 경우에는 저속으로 팬모터를 작동시켜 풍량을 조절한 후 설정온도에 도달한 이후에 사용자가 설정한 풍량으로 송풍될 수 있도록 팬모터를 작동시킴으로써 초기에 체온보다 낮은 저온의 온기가 토출되는 것을 방지하여 불쾌감을 해소시킬 수 있게 된다. The present invention made as described above measures the warmth discharged through the discharge temperature sensor installed in the discharge opening in the control of the amount of air discharged during the initial heating operation in the air-conditioning combined air conditioning not reach the set temperature similar to the human body temperature If not, the fan motor is operated at a low speed to adjust the air volume, and after reaching the set temperature, the fan motor is operated to blow air at the air volume set by the user. It is possible to eliminate the discomfort.
이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명한다. 또한 본 실시예는 본 발명의 권리범위를 한정하는 것은 아니고, 단지 예시로 제시된 것이며 종래 구성과 동일한 부분은 동일한 부호 및 명칭을 사용한다. Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the present embodiment is not intended to limit the scope of the present invention, but is presented by way of example only and the same parts as in the conventional configuration using the same reference numerals and names.
도 2는 본 발명에 의한 냉난방 겸용 에어컨의 풍량 조절장치를 간략하게 나타낸 블록구성도이다. Figure 2 is a block diagram showing a simplified configuration of the airflow control apparatus for a combined air conditioning and air conditioner according to the present invention.
여기에 도시된 바와 같이 냉난방 겸용 에어컨의 토출구(350)에 온기의 토출온도를 측정하는 토출온도센서(300)가 설치된다. As shown here, the discharge temperature sensor 300 for measuring the discharge temperature of the warmth is installed in the discharge port 350 of the combined air-conditioning and heating.
그리고, 초기 온기의 토출온도와 풍량을 설정하기 위한 입력부(310)와, 가열된 온기를 실내로 토출시키기 위한 송풍팬(340)을 구동시키는 팬모터(330)와, 입력부(310)에서 설정된 토출온도(To)와 토출온도센서(300)에 의해 측정된 토출온도(Ts)를 비교하여 팬모터(330)를 설정된 풍량에 따라 제어하는 제어부(320)가 설치된다. Then, the input unit 310 for setting the discharge temperature and the air volume of the initial warmth, the fan motor 330 for driving the blower fan 340 for discharging the heated warm air into the room, and the discharge set in the input unit 310 The controller 320 is configured to control the fan motor 330 according to the set air volume by comparing the temperature To with the discharge temperature Ts measured by the discharge temperature sensor 300.
위에서 토출온도센서(300)는 도 3에 도시된 바와 같이 토출구(350)의 일측에 설치되어 토출되는 온기를 직접 측정할 수 있게 된다. As shown in FIG. 3, the discharge temperature sensor 300 may directly measure the warmth discharged by being installed at one side of the discharge port 350.
위와 같이 이루어진 본 발명에 의한 냉난방 겸용 에어컨의 풍량 조절장치의 작동을 설명하기 위해 도 4에 도시된 냉난방 겸용 에어컨의 풍량 조절방법을 설명하기 위한 흐름도를 참조하여 설명하면 다음과 같다. Referring to the flow chart for explaining the airflow control method of the air-conditioning combined air conditioner shown in Figure 4 in order to explain the operation of the air conditioning control device of the combined air conditioning and heating according to the present invention as follows.
먼저, 난방운전시 토출되는 온기의 풍량을 설정할 뿐만 아니라 난방운전 초기에 토출되는 온기의 토출온도(To)를 설정한다(S10). First, not only the air volume of the warm air discharged during the heating operation but also the discharge temperature To of the warm air discharged during the initial heating operation are set (S10).
이때 토출온도(To)를 사람의 체온과 유사한 35℃로 설정함으로서 바람을 느낄 때 차가운 느낌을 갖지 않고 온기를 느낄 수 있는 온도로 설정한다. At this time, by setting the discharge temperature (To) to 35 ℃ similar to the human body temperature, it is set to a temperature that can feel the warmth without feeling cold when the wind.
그런다음, 냉난방 겸용 에어컨의 작동상태를 판단하게 된다(S20). Then, it is determined the operating state of the combined air conditioning and heating (S20).
이때 냉난방 겸용 에어컨이 난방운전으로 설정되어 있어 난방운전 중 작동을 멈췄다가 재가동이 되거나 초기 난방운전으로 가동 될 경우에는 팬모터(330)를 저속으로 작동시키게 된다(S30)(S40). At this time, the air-conditioning combined air conditioner is set to the heating operation, and stops the operation during the heating operation is restarted or operated in the initial heating operation to operate the fan motor 330 at low speed (S30) (S40).
이와 같이 팬모터(330)를 저속으로 작동시키면서 토출구(350)에 설치된 토출온도센서(300)를 통해 토출되는 온기의 토출온도(Ts)를 측정한다(S50). As such, while operating the fan motor 330 at a low speed, the discharge temperature Ts of the warmth discharged through the discharge temperature sensor 300 installed in the discharge port 350 is measured (S50).
그런다음 측정된 토출온도(Ts)와 설정된 토출온도(To)를 비교한다(S60). Then, the measured discharge temperature Ts is compared with the set discharge temperature To (S60).
이렇게 비교한 결과 측정된 토출온도(Ts)가 설정된 토출온도(To) 35℃보다 높을 경우 팬모터(330)를 설정된 풍량으로 작동시킴으로써 사용자가 곧바로 온기를 느낄 수 있도록 한다(S70). As a result of the comparison, when the measured discharge temperature Ts is higher than the set discharge temperature To 35 ° C., the fan motor 330 is operated with the set air volume so that the user can immediately feel warmth (S70).
상기한 바와 같이 본 발명은 냉난방 겸용 에어컨의 토출구에 온도센서를 설치하여 난방운전시 초기에 토출되는 온기의 토출온도를 직접 측정하여 사람의 체온과 유사한 온도로 설정한 설정온도보다 높을 경우에 설정풍량으로 운전하도록 함으로써 난방운전 중 정지한 후 재가동하거나 초기 작동시 토출되는 온기가 사람의 체온과 유사하여 따뜻한 느낌을 갖도록 하여 쾌적한 난방이 이루어지는 이점이 있다. As described above, in the present invention, the temperature sensor is installed at the outlet of the air conditioner for both heating and cooling to measure the discharge temperature of the warmth discharged at the initial stage of the heating operation, and the set air volume is higher than the set temperature set to a temperature similar to the human body temperature. By operating in the heating operation is stopped and restarted after the heating operation or the warming discharged during the initial operation to have a warm feeling similar to the human body temperature has the advantage that the comfortable heating is made.
도 1은 일반적인 냉난방 겸용 에어컨의 냉매순환도이다. 1 is a refrigerant circulation diagram of a general air-conditioning combined air conditioner.
도 2는 본 발명에 의한 냉난방 겸용 에어컨의 풍량 조절장치를 간략하게 나타낸 블록구성도이다. Figure 2 is a block diagram showing a simplified configuration of the airflow control apparatus for a combined air conditioning and air conditioner according to the present invention.
도 3은 본 발명에 의한 냉난방 겸용 에어컨의 풍량 조절장치의 토출온도센서의 설치상태를 나타낸 도면이다. 3 is a view showing an installation state of the discharge temperature sensor of the airflow control apparatus of the air-conditioning combined air conditioner according to the present invention.
도 4는 본 발명에 의한 냉난방 겸용 에어컨의 풍량 조절방법을 설명하기 위한 흐름도이다. Figure 4 is a flow chart for explaining the air volume control method of a combined air conditioning and air conditioner according to the present invention.
- 도면의 주요부분에 대한 부호의 설명 - -Explanation of symbols for the main parts of the drawings-
300 : 토출온도센서 310 : 입력부300: discharge temperature sensor 310: input unit
320 : 제어부 330 : 팬모터320: control unit 330: fan motor
340 : 송풍팬 350 : 토출구340 blower fan 350 discharge port
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| KR10-2002-0053291A KR100502300B1 (en) | 2002-09-04 | 2002-09-04 | Method for controlling blowoff force of air-conditioner used both cooler and heater |
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| KR10-2002-0053291A KR100502300B1 (en) | 2002-09-04 | 2002-09-04 | Method for controlling blowoff force of air-conditioner used both cooler and heater |
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| KR102240995B1 (en) * | 2019-08-05 | 2021-04-16 | 주식회사 파세코 | A control device for abnormal temperature on an airconditioner of window type |
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