KR20000033606A - Method of eliminating wet compression of window-type air conditioner - Google Patents

Method of eliminating wet compression of window-type air conditioner Download PDF

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Publication number
KR20000033606A
KR20000033606A KR1019980050539A KR19980050539A KR20000033606A KR 20000033606 A KR20000033606 A KR 20000033606A KR 1019980050539 A KR1019980050539 A KR 1019980050539A KR 19980050539 A KR19980050539 A KR 19980050539A KR 20000033606 A KR20000033606 A KR 20000033606A
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South Korea
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temperature
motor speed
compressor
temperature difference
refrigerant
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KR1019980050539A
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Korean (ko)
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KR100316042B1 (en
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황용희
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전주범
대우전자 주식회사
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/025Motor control arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00Compressor arrangements
    • F25B31/006Cooling of compressor or motor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21Temperatures
    • F25B2700/2115Temperatures of a compressor or the drive means therefor
    • F25B2700/21152Temperatures of a compressor or the drive means therefor at the discharge side of the compressor

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: A method of eliminating wet compression of a window-type air conditioner is provided to prevent cooling performance from being reduced at a low temperature and to enhance the durability of a compressor by removing wet compression that a refrigerant is mixed with fluid and gas and introduced. CONSTITUTION: An on-signal is fed through an operation switch, a control unit turns on a compressor to compress a refrigerant. The control unit decides whether motor speed is selected through a signal fed through a motor speed switch. The control unit decides if the temperature difference between first and second temperature sensors is higher than set temperature, wherein the first temperature sensor detects the bottom temperature of the compressor, and the second sensor detects the temperature of a refrigerant discharged through a discharge pipe. After that, the control unit keeps the current motor speed if the temperature difference is higher than the set temperature. The control unit decides whether the temperature difference is lower than the set range if the temperature difference is not higher than the set range. Finally, the control unit increases the motor speed by controlling the motor speed switch if the temperature difference is lower than the set range.

Description

창문형 에어컨의 습압축 제거방법(A method for preventing the inflowing of liquid refrigerant into a compressor of window type air-conditioner)A method for preventing the inflowing of liquid refrigerant into a compressor of window type air-conditioner

본 발명은 창문형 에어컨의 습압축 제거방법에 관한 것으로, 더욱 상세하게는 압축기의 저온작동시 증발기를 거쳐유입되는 냉매가 액체와 기체의 혼합상태로 유입되는 습압축을 방지하여 압축기의 내구성 향상 및 저온에서의 냉방능력 감소를 방지할 수 있도록 한 창문형 에어컨의 습압축 제거방법에 관한 것이다.The present invention relates to a method for removing the wet compression of a window air conditioner, and more particularly, to prevent the wet compression of the refrigerant flowing through the evaporator during the low temperature operation of the compressor into the mixed state of the liquid and gas to improve the durability and low temperature of the compressor. The present invention relates to a method of removing the wet compression of a window type air conditioner to prevent the reduction of cooling capacity in the home.

일반적으로 에어컨은 열을 흡수하여 실내에 냉풍을 공급하는 증발기는 차단벽을 사이에 두고 실내에 설치되고, 냉매를 압축하는 압축기와 방출열을 외부로 내보내는 응축기와 이 응축기로 부터 나오는 냉매의 압력을 감압시켜 상기의 증발기로 보내주는 모세관은 차단벽의 외부 즉 실외에 설치되어 진다.In general, an air conditioner absorbs heat and supplies a cold air to the room. An evaporator is installed indoors with a barrier wall between the compressor, a compressor that compresses the refrigerant, a condenser that discharges the discharged heat, and the pressure of the refrigerant from the condenser. The capillary tube, which is decompressed and sent to the evaporator, is installed outside the barrier wall, that is, outdoors.

도4는 상기와 같은 일반적인 에어컨을 설명하기 위한 도면으로, 전.후방이 실내 및 실외로 노출되는 본체(10)가 구비되며, 상기 본체(10) 내부는 실내차단벽체(11)와 실외차단벽체(12)에 의해 실내공간부와 실외공간부로 나누어지고, 실내차단벽체(11)에는 중앙에서 양방향으로 회전력을 전달하는 구동모터(20)가 설치된다.4 is a view for explaining a general air conditioner as described above, the front and rear is provided with a main body 10 is exposed to the indoor and outdoor, the interior of the main body 10 is an indoor blocking wall 11 and an outdoor blocking wall. It is divided into the interior space portion and the outdoor space portion (12), the indoor blocking wall 11 is provided with a drive motor 20 for transmitting rotational force in both directions from the center.

또한, 실내공간부내에 주위의 열을 흡수하는 증발기(30)와 냉매를 고온.고압으로 압축하는 압축기(40)가 설치되며, 이 후방으로 상기 압축기(40)에서 고온.고압으로 압축된 냉매를 액화시켜 상온으로 응축하는 응축기(50)가 설치되며, 상기 응축기(50)는 냉매가 흐르는 냉매관이 지그재그 형태로 다수개 배열되어 있으며, 각 냉매관의 외주연에 발생되는 열을 외부로 방열하는 방열핀(미도시됨)이 형성되어 지며, 실외공간부의 양측판에 실외흡입구(13)가 형성되고, 응축기(50)의 후방에 실외토출구(미도시됨)가 형성되어 진다.In addition, an evaporator 30 that absorbs the surrounding heat and a compressor 40 for compressing the refrigerant at high temperature and high pressure are installed in the indoor space, and the refrigerant compressed at high temperature and high pressure in the compressor 40 to the rear thereof. The condenser 50 is liquefied and condensed at room temperature, and the condenser 50 has a plurality of refrigerant tubes in which zigzag is arranged in a zigzag form, and heats heat generated at the outer circumference of each refrigerant tube to the outside. A heat radiation fin (not shown) is formed, and outdoor suction holes 13 are formed at both side plates of the outdoor space part, and an outdoor discharge hole (not shown) is formed at the rear of the condenser 50.

상기와 같이 구성된 에어컨은 사용자의 온신호에 의해 전원이 공급되면, 구동모터(20)가 구동을 시작하고, 상기 구동모터(20)의 회전축(21)(22)에 끼워져 설치된 냉각팬(60)과 송풍팬(70)이 동시에 회전을 시작하며, 또한 압축기(40)에서 냉매가 고온.고압으로 압축된 다음 응축기(50)로 순환되면 송풍팬(70)의 회전으로 발생되는 바람에 의해 공냉되어 진다.In the air conditioner configured as described above, when the power is supplied by the user's ON signal, the driving motor 20 starts driving, and the cooling fan 60 is inserted into the rotating shafts 21 and 22 of the driving motor 20. And the blowing fan 70 starts to rotate at the same time, and when the refrigerant is compressed to high temperature and high pressure in the compressor 40 and then circulated to the condenser 50, the air is cooled by the wind generated by the rotation of the blowing fan 70. Lose.

즉, 냉각팬(60)이 회전되면서 실외공기가 실외흡입구(13)를 거쳐 실외공간부로 흡입된 다음 후방의 응축기(50)를 통과하게 되는데, 이때 상기 응축기(50)에 강한 바람이 통과하면서 응축기(50)의 열을 외부로 방열시켜 냉각시킨 다음 이 바람은 실외토출구를 따라 실외로 배출되어 진다.That is, as the cooling fan 60 is rotated, the outdoor air is sucked into the outdoor space through the outdoor suction port 13 and then passes through the condenser 50 at the rear. At this time, a strong wind passes through the condenser 50 while the condenser is passed. After the heat of (50) is radiated to the outside to cool, the wind is discharged to the outside along the outdoor discharge port.

또한, 응축기(50)에서 저온.저압으로 액화되어 응축된 냉매가 미도시된 모세관을 거치면서 팽창되고, 따라서 팽창된 기체액체 혼합냉매가 실내공간부의 증발기(30)로 순환되어 이중 액체상태의 냉매가 증발하여 외부의 열을 흡수하게 되는 것이다.In addition, the refrigerant liquefied and condensed at low temperature and low pressure in the condenser 50 expands through a capillary tube (not shown), and thus the expanded gas liquid mixed refrigerant is circulated to the evaporator 30 in the indoor space to provide a double liquid refrigerant. Is evaporated to absorb external heat.

따라서, 구동모터(20)의 구동으로 송풍팬(70)이 회전되면서 실내공간부 내부로 흡입된 후 증발기(30)를 거치면서 냉각되며, 이 냉각된 실내공기가 토출그릴부(14)를 거쳐 실내로 토출되어 실내가 냉방되어 지는 것이다.Therefore, as the blower fan 70 is rotated by the driving of the driving motor 20, the blower fan 70 is sucked into the interior space part and then cooled by passing through the evaporator 30, and the cooled indoor air passes through the discharge grill part 14. It is discharged into the room and the room is cooled.

그러나, 상기와 같이 구성된 에어컨의 압축기는 모터속도를 강 또는 약으로 세팅된 상태에서 기동되도록 구성되어 있어 압축기를 저온에서 기동시키는 경우 증발기를 거친 냉매가 압축기로 유입될 때 과열증기 상태가 아닌 액체와 기체의 혼합상태로 유입되는 습압축 현상이 발생하게 된다.However, the compressor of the air conditioner configured as described above is configured to be started in a state in which the motor speed is set to a strong or weak condition. The wet compression phenomenon flowing into the mixed state of the gas occurs.

이에 따라, 압축기내의 압력이 과다하게 상승되어 베어링이나 압축기구에 부하가 많이 걸려 마모가 발생되는 등 압축기의 내구성 및 냉방능력 저하와 과도한 진동에 따른 소음발생이 문제점으로 지적되고 있다.Accordingly, the pressure in the compressor is excessively increased, the load or load on the bearing or the compression mechanism is a lot of wear occurs, such as the durability and cooling capacity of the compressor and noise caused by excessive vibration has been pointed out as a problem.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 압축기의 표면온도와 토출온도(압축기에서 토출되는 곳과 응축기 입구사이의 중간지점에서 냉매온도) 를 검출하여 이 온도차가 설정온도 이내이면 압축기 모터의 현 회전속도를 유지하고, 설정온도 이상이면 회전속도를 증가시켜 액냉매가 발생되지 않는 온도차를 지속적으로 유지할 수 있도록 하므로서 압축기의 습압축 현상을 방지할 수 있도록 한 창문형 에어컨의 습압축 제거방법을 제공하는 것을 그 목적으로 한다.The present invention is to solve the above problems, it detects the surface temperature of the compressor and the discharge temperature (coolant temperature at the intermediate point between the discharged from the compressor and the inlet of the condenser) and if the temperature difference is within the set temperature of the compressor motor It maintains the current rotational speed and increases the rotational speed if it is over the set temperature so that the temperature difference without liquid refrigerant can be maintained continuously, thereby providing a method of removing the wet compression of the window type air conditioner to prevent the compressor from compressing. It is for that purpose.

본 발명은 창문형 에어컨의 습압축 제거방법에 있어서, 운전스위치를 통해 온신호가 인가되면 제어부는 압축기를 온시켜 냉매를 압축시키며 모터속도스위치를 통해 인가되는 신호를 통해 모터속도가 선택되었나를 판단하는 제 1 단계; 상기 제1단계에서 모터속도가 선택되었으면 제어부는 압축기 표면 바닥온도를 검출하는 제1 온도검출센서와 토출파이프를 통해 토출되는 냉매의 온도를 검출하는 제2 온도검출센서를 통해 인가되는 온도를 인가받아 온도차가 설정온도 이상인가를 판단하는 제 2 단계; 상기 제2단계에서 제1 및 제2 온도검출센서의 검출온도차가 설정온도 이상이면, 제어부는 현재의 모터속도를 유지하는 제 3 단계; 상기 제2단계에서 제1 및 제2 온도검출센서의 검출온도차가 설정온도 이상이 아니면 제어부는 제1 및 제2 온도검출센서의 검출온도차가 설정온도 이하인가를 판단하는 제 4 단계; 상기 제4단계에서 검출온도차가 설정온도 이하이면 제어부는 모터속도스위치를 제어하여 모터속도를 증가시키는 제 5 단계를 구비한 것을 특징으로 한다.According to the present invention, in the wet compression removal method of the window type air conditioner, when the on signal is applied through the operation switch, the controller turns on the compressor to compress the refrigerant and determines whether the motor speed is selected through a signal applied through the motor speed switch. First step; When the motor speed is selected in the first step, the controller receives the temperature applied through the first temperature detection sensor for detecting the bottom temperature of the compressor surface and the second temperature detection sensor for detecting the temperature of the refrigerant discharged through the discharge pipe. A second step of determining whether the temperature difference is greater than or equal to the set temperature; A third step of, if the detected temperature difference between the first and second temperature detection sensors is greater than or equal to the set temperature in the second step, the control unit maintaining a current motor speed; A fourth step of determining whether the detected temperature difference between the first and second temperature detection sensors is less than or equal to the set temperature if the detected temperature difference between the first and second temperature detection sensors is not greater than or equal to the set temperature in the second step; In the fourth step, if the detected temperature difference is less than or equal to the set temperature, the controller includes a fifth step of increasing the motor speed by controlling the motor speed switch.

상기 설정온도차는 6℃ 인것을 특징으로 한다.The set temperature difference is characterized in that 6 ℃.

도 1 은 본 발명에 따른 창문형 에어컨의 습압축 제거방법을 나타낸 개략도,1 is a schematic view showing a wet compression removal method of a window type air conditioner according to the present invention,

도 2 는 본 발명에 따른 창문형 에어컨의 습압축 제거방법의 구성을 나타낸 블럭도,Figure 2 is a block diagram showing the configuration of the wet compression removal method of the window type air conditioner according to the present invention,

도 3 은 본 발명에 따른 창문형 에어컨의 습압축 제거방법을 설명하기 위한 흐름도,3 is a flow chart for explaining a method of removing the compression of the window air conditioner according to the present invention;

도4는 일반적인 에어컨을 설명하기 위한 도면이다.4 is a view for explaining a general air conditioner.

도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings

10 : 본체 30 : 증발기10: body 30: evaporator

40 : 압축기 41 : 토출파이프40 compressor 41 discharge pipe

110 : 운전스위치 120 : 제1 온도검출센서110: operation switch 120: the first temperature detection sensor

130 : 제2 온도검출센서 140 : 모터속도선택스위치130: second temperature detection sensor 140: motor speed selection switch

150 : 제어부 160 : 모터150 control unit 160 motor

이하 본 발명의 작용 및 효과를 첨부도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, the operation and effects of the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명에 따른 창문형 에어컨의 습압축 제거방법을 나타낸 개략도로서, 압축기(40)의 토출구를 통과한 냉매가스가 응축기(50)를 통과할때에 흡입되는 공기가 구동모터(20)의 구동에 의해 회전하는 냉각팬(60)을 밀어주어 토출되는 공기와 열교환을 하여 응축기(50)의 토출구로 토출되고, 이 냉매가스는 팽창변을 통하면서 급격히 압력이 저하되어 저온.저압의 냉매가스로 변하여 증발기(30)로 인입되도록 구성되어 있다.1 is a schematic view showing a method of removing a wet compression of a window type air conditioner according to the present invention, in which the air sucked when the refrigerant gas passing through the discharge port of the compressor 40 passes through the condenser 50 of the drive motor 20. The cooling fan 60 rotates by driving to exchange heat with the discharged air, and is discharged to the discharge port of the condenser 50. The refrigerant gas is rapidly reduced in pressure through the expansion valve, and is converted into low-temperature / low-pressure refrigerant gas. It is configured to be drawn into the evaporator (30).

한편, 상기 압축기(40)의 표면 일측으로는 압축기(40)의 표면온도를 검출하는 제1 온도검출센서(120)가 장착되어 있으며, 상기 압축기(40)의 토출파이프(41) 일측으로는 토출되는 냉매의 토출온도를 검출하는 제2 온도검출센서(130)가 장착되어 있다.On the other hand, one surface of the compressor 40 is equipped with a first temperature detection sensor 120 for detecting the surface temperature of the compressor 40, the discharge pipe 41 of the compressor 40 discharged to one side A second temperature detection sensor 130 is mounted to detect the discharge temperature of the refrigerant.

도2는 본 발명에 따른 창문형 에어컨의 습압축 제거방법의 구성을 나타낸 블럭도로서, 에어컨 본체(10)를 운전하기 위한 운전스위치(110)와 압축기(40)의 표면 일측에 장착되어 압축기 표면 바닥온도를 검출하는 제1 온도검출센서(120)와 상기 압축기(40)의 토출파이프(41) 일측에 장착되어 냉매의 토출온도(압축기에서 토출되는 곳과 응축기 입구사이의 중간지점에서 냉매온도)를 검출하는 제2 온도검출센서(130)와 압축기 기동을 위한 모터(160)의 회전속도를 조절하는 모터속도 선택스위치(140)가 제어부(150)에 각각 접속되어 있으며, 상기 제어부(150)의 구동신호에 따라 회전하는 압축기 모터(160)가 제어부(150)의 제어를 받도록 접속되어 있다.Figure 2 is a block diagram showing the configuration of the method of removing the wet compression of the window air conditioner according to the present invention, the operation switch 110 for operating the air conditioner main body 10 and is mounted on one side of the surface of the compressor 40, the compressor surface bottom Mounted on one side of the first temperature detection sensor 120 for detecting the temperature and the discharge pipe 41 of the compressor 40 to determine the discharge temperature of the refrigerant (the refrigerant temperature at the intermediate point between the discharged from the compressor and the inlet of the condenser) The second temperature detection sensor 130 to detect and the motor speed selection switch 140 for controlling the rotational speed of the motor 160 for starting the compressor are connected to the controller 150, respectively, and the driving of the controller 150 is performed. The compressor motor 160 which rotates according to the signal is connected to be controlled by the controller 150.

도3은 본 발명에 따른 창문형 에어컨의 습압축 제거방법을 설명하기 위한 흐름도로서, 사용자가 에어컨 본체(10)을 운전하고자 운전스위치(110)를 온시키면, 제어부(150)는 이 온신호에 따라 압축기(40)를 온시켜 냉매를 압축시키는 냉동싸이클을 실시하며(101), 모터속도스위치(140)를 통해 인가되는 신호를 통해 모터(160)의 회전속도가 선택되었나를 판단하게 된다(102).3 is a flowchart illustrating a method of removing the compression of a window type air conditioner according to the present invention. When the user turns on the operation switch 110 to operate the air conditioner main body 10, the controller 150 according to the on signal. A refrigeration cycle for compressing the refrigerant is performed by turning on the compressor 40 (101), and it is determined whether the rotational speed of the motor 160 is selected through a signal applied through the motor speed switch 140 (102). .

따라서, 제어부(150)는 압축기(40) 모터의 회전속도가 선택되었으면 압축기(40) 표면 바닥온도를 검출하는 제1 온도검출센서(120)와 토출파이프(41)를 통해 토출되는 냉매의 온도를 검출하는 제2 온도검출센서(130)를 통해 인가되는 온도를 인가받아 표면온도분의 토출온도차가 설정온도차인 6℃ 이상인가를 판단하게 된다(103).Therefore, when the rotational speed of the motor of the compressor 40 is selected, the controller 150 controls the temperature of the refrigerant discharged through the first temperature detection sensor 120 and the discharge pipe 41 to detect the bottom temperature of the surface of the compressor 40. The temperature applied through the second temperature detection sensor 130 to detect is determined to determine whether the discharge temperature difference for the surface temperature is 6 ° C. or more, which is the set temperature difference (103).

상기에서 온도차가 설정온도차인 6℃ 이상이면, 압축기(40)내로 유입되는 냉매에 액냉매가 포함되지 않은 정상상태이므로 제어부(150)는 현재의 모터 회전속도를 지속적으로 유지시키게 된다(104).When the temperature difference is 6 ° C. or more, which is a set temperature difference, since the liquid refrigerant is not included in the refrigerant flowing into the compressor 40, the controller 150 maintains the current motor rotation speed continuously (104).

한편, 제어부(150)는 제1 및 제2 온도검출센서(120)(130)의 검출온도차가 설정온도차인 6℃ 이상이 아니면 제어부(150)는 제1 및 제2 온도검출센서(120)(130)의 검출온도차가 설정온도차인 6℃ 이상인가를 판단하게 된다(105).Meanwhile, if the detected temperature difference between the first and second temperature detection sensors 120 and 130 is not higher than 6 ° C. which is a set temperature difference, the controller 150 controls the first and second temperature detection sensors 120 ( It is determined whether the detected temperature difference of 130 is 6 ° C. or more, which is the set temperature difference (105).

상기의 판단에 따라 검출온도차가 설정온도차인 6℃ 이하이면 제어부(150)는 모터속도스위치(140)를 제어하여 모터의 회전속도를 증가시켜 주게 되면, 증발부측의 풍량을 자동적으로 상승시키는 효과를 발휘하여 증발기(30)에서 냉매가 모두 증발된 과열증기 상태로 압축기내로 다시 유입되도록 하므로서, 습압축 현상을 방지하게 되는 것이다(106).According to the above judgment, if the detected temperature difference is less than or equal to the set temperature difference of 6 ° C., the controller 150 controls the motor speed switch 140 to increase the rotational speed of the motor, thereby automatically increasing the amount of air on the evaporator side. By exerting the refrigerant in the evaporator 30 to re-introduce all of the refrigerant into the superheated vapor state again, the wet compression phenomenon is prevented (106).

상기와 같이 본 발명은 압축기 표면 바닥온도를 검출하는 제1 온도검출센서와 토출온도를 검출하는 제2 온도검출센서의 온도차를 지속적으로 검출하여 온도차가 습압축이 발생되는 온도차 이하이면 모터의 회전속도를 자동으로 조절하므로서, 습압축 현상을 제거할 수 있다.As described above, the present invention continuously detects the temperature difference between the first temperature detection sensor for detecting the bottom surface temperature of the compressor and the second temperature detection sensor for detecting the discharge temperature, and the rotation speed of the motor is lower than the temperature difference in which the wet compression occurs. By adjusting the temperature automatically, the wet compression phenomenon can be eliminated.

이상에서 본 발명은 도면에 도시된 일실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 당해 기술분야에 통상의 지식을 지닌 자라면 이로 부터 다양한 변형 및 균등한 타실시 예가 가능하다는 것을 이해할 것이다.Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. .

따라서, 본 발명의 기술적 보호범위는 첨부된 특허청구범위에 의해서만 정해져야 할 것이다.Therefore, the technical protection scope of the present invention should be defined only by the appended claims.

Claims (2)

창문형 에어컨의 습압축 제거방법에 있어서, 운전스위치(110)를 통해 온신호가 인가되면 제어부(150)는 압축기(40)를 온시켜 냉매를 압축시키며 모터속도스위치(140)를 통해 인가되는 신호를 통해 모터속도가 선택되었나를 판단하는 제 1 단계(101 내지 102); 상기 제1단계에서 모터속도가 선택되었으면 제어부(150)는 압축기(40) 표면 바닥온도를 검출하는 제1 온도검출센서(120)와 토출파이프(41)를 통해 토출되는 냉매의 온도를 검출하는 제2 온도검출센서(130)를 통해 인가되는 온도를 인가받아 온도차가 6℃이상인가를 판단하는 제 2 단계(103); 상기 제2단계에서 제1 및 제2 온도검출센서(120)(130)의 검출온도차가 설정온도 이상이면, 제어부(150)는 현재의 모터속도를 유지하는 제 3 단계(104); 상기 제2단계에서 제1 및 제2 온도검출센서(120)(130)의 검출온도차가 설정온도 이상이 아니면 제어부(150)는 제1 및 제2 온도검출센서(120)(130)의 검출온도차가 설정온도 이하인가를 판단하는 제 4 단계(105); 상기 제4단계에서 검출온도차가 설정온도 이하이면 제어부(150)는 모터속도스위치(140)를 제어하여 모터속도를 증가시키는 제 5 단계(106)를 구비한 것을 특징으로 하는 창문형 에어컨의 습압축 제거방법.In the wet compression removing method of the window type air conditioner, when the on signal is applied through the operation switch 110, the controller 150 turns on the compressor 40 to compress the refrigerant and receives a signal applied through the motor speed switch 140. First steps 101 to 102 for determining whether a motor speed has been selected; When the motor speed is selected in the first step, the controller 150 detects the temperature of the refrigerant discharged through the first temperature detection sensor 120 and the discharge pipe 41 to detect the bottom temperature of the surface of the compressor 40. A second step 103 of determining whether the temperature difference is 6 ° C. or more by receiving the temperature applied through the temperature detecting sensor 130; If the detected temperature difference between the first and second temperature detection sensors 120, 130 in the second step is greater than or equal to the set temperature, the control unit 150 maintains the current motor speed (104); If the detected temperature difference between the first and second temperature detection sensors 120 and 130 is not equal to or greater than a set temperature in the second step, the controller 150 detects the difference between the detected temperature of the first and second temperature detection sensors 120 and 130. A fourth step 105 of determining whether is equal to or less than a set temperature; In the fourth step, if the detected temperature difference is less than or equal to the set temperature, the controller 150 includes a fifth step 106 of controlling the motor speed switch 140 to increase the motor speed. Way. 제 1 항에 있어서, 상기 설정온도차는 6℃ 인것을 특징으로 하는 창문형 에어컨의 습압축 제거방법.The method of claim 1, wherein the set temperature difference is 6 ° C.
KR1019980050539A 1998-11-25 1998-11-25 A method for preventing the inflowing of liquid refrigerant into a compressor of window type air-conditioner KR100316042B1 (en)

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