KR20000073043A - Fan trouble sensing method for air conditioner - Google Patents

Fan trouble sensing method for air conditioner Download PDF

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Publication number
KR20000073043A
KR20000073043A KR1019990016064A KR19990016064A KR20000073043A KR 20000073043 A KR20000073043 A KR 20000073043A KR 1019990016064 A KR1019990016064 A KR 1019990016064A KR 19990016064 A KR19990016064 A KR 19990016064A KR 20000073043 A KR20000073043 A KR 20000073043A
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South Korea
Prior art keywords
temperature
indoor
outdoor
fan
heat exchanger
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KR1019990016064A
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Korean (ko)
Inventor
강병식
김병순
김주상
김창범
최득관
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구자홍
엘지전자 주식회사
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Priority to KR1019990016064A priority Critical patent/KR20000073043A/en
Publication of KR20000073043A publication Critical patent/KR20000073043A/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/20Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M5/2033Spring-loaded one-shot injectors with or without automatic needle insertion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M2005/3125Details specific display means, e.g. to indicate dose setting

Abstract

PURPOSE: A method is provided to sense the breakdown of a blower fan by comparing the temperature of a discharge pipe in a heat exchanger with the temperature of an entrance in the heat exchanger so that an additional high pressure switch is not necessary and a low pressure can be sensed. CONSTITUTION: Temperature sensors for an indoor discharge pipe and an outdoor discharge pipe and temperature sensors for an indoor entrance and an outdoor entrance, sense each temperature. The temperatures are inputted to a controller(70) and the controller decides if an indoor fan(52) and an outdoor fan have a breakdown. In case of a cooling drive, when the value subtracting the temperature for the outdoor entrance from the temperature for the outdoor discharge pipe is more than a first testing value, the controller decides that the outdoor fan is out of order. When the value subtracting the temperature for the indoor discharge pipe from the temperature for the indoor entrance is more than a second testing value, the controller decides that the indoor fan is out of order. The controller outputs an error signal to a display unit(80) and stops the indoor fan or the outdoor fan.

Description

공기조화기의 송풍팬 고장감지방법{Fan trouble sensing method for air conditioner}Fan trouble sensing method for air conditioner

본 발명은 공기조화기에서 열 교환을 극대화하기 위하여 사용되는 송풍팬의 고장감지방법에 관한 것으로서, 특히 실내외 열 교환기의 배관온도와 입구공기온도를 측정하여 비교함으로써 송풍팬의 고장을 감지하는 공기조화기의 송풍팬 고장감지방법에 관한 것이다.The present invention relates to a fault detection method of a blower fan used to maximize heat exchange in an air conditioner. In particular, an air conditioner for detecting a fault of a blower fan by measuring and comparing a pipe temperature and an inlet air temperature of an indoor and outdoor heat exchanger. The present invention relates to a blower fan failure detection method.

일반적으로, 공기조화기에서는 실내외 열 교환기에서 열 교환된 공기를 실내외로 토출하기 위한 송풍팬이 보통 모터에 연결되어 설치되어 있는데, 상기 모터의 고장으로 송풍팬이 회전하지 않게 되는 경우에는 실내외 열 교환기의 배관에 부하가 크게 걸려 그 기능이 저하될 뿐만아니라 공기조화기의 전체 시스템에 악영향을 끼치게 된다.In general, in the air conditioner, a blower fan for discharging the air exchanged by the indoor / outdoor heat exchanger to the outside of a room is usually installed in a motor. When the blower fan does not rotate due to a failure of the motor, the indoor / outdoor heat exchanger This causes a large load on the pipes, which not only degrades its function but also adversely affects the entire system of the air conditioner.

즉, 응축기측의 송풍팬이 고장나게 되는 경우에는 응축기 배관의 온도가 더욱 상승하여 그 배관에 고압이 걸리게 되고, 증발기측의 송풍팬이 고장나게 되는 경우에는 많은 액냉매의 유입에 의해 배관부하가 증가하게 된다.That is, when the blower fan on the condenser side fails, the temperature of the condenser pipe increases further and high pressure is applied to the pipe. When the blower fan on the evaporator side fails, the pipe load is increased due to the inflow of a lot of liquid refrigerant. Will increase.

참조된 도면, 도 1은 종래 공기조화기의 구성도이다.1 is a block diagram of a conventional air conditioner.

종래의 공기조화기는 도 1에 도시된 바와 같이 냉방운전시에는 증발기로 난방운전시에는 응축기로 동작하는 실내 열 교환기(1)와, 상기 실내 열 교환기(1)의 실내 공기와의 열 교환을 톱도록 설치된 실내 팬(2)과, 냉방운전시에는 응축기로 난방운전시에는 증발기로 동작하는 실외 열 교환기(3)와, 상기 실외 열 교환기(3)의 실외공기와의 열 교환을 톱도록 설치된 실외 팬(4)과, 상기 실내 열 교환기(1)와 상기 실외 열 교환기(3) 사이에 설치되어 이동되는 냉매가 잘 증발될 수 있도록 팽창시키는 팽창밸브(5)와, 실외측에 설치되고 저온저압의 냉매가스를 흡입한 다음 압축하여 고온고압의 냉매상태로 변환시킨 후 토출하는 압축기(6)와, 상기 압축기(6)의 토출구 측에 설치되어 압축된 냉매가 냉방운전시에는 상기 실외 열 교환기(3)로 난방운전시에는 상기 실내 열 교환기(1)로 이동되도록 냉매의 이동을 절환하는 사방밸브(7)와, 상기 사방밸브(7)와 연결되어 이동되는 냉매의 고압을 감지하는 고압스위치(8)와, 상기 고압스위치로 유입되는 냉매가 일방향으로부터만 유입되도록 상기 고압스위치(8)에 연결된 체크밸브(9)로 구성된다.As shown in FIG. 1, a conventional air conditioner is a heat exchanger with an indoor heat exchanger (1) that operates as an evaporator during a cooling operation and a condenser during a heating operation, and an indoor air exchanger of the indoor heat exchanger (1). Indoor heat exchanger (3) installed in the air conditioner, an outdoor heat exchanger (3) which operates as a condenser during a cooling operation, and an evaporator during a heating operation, and an outdoor installed to cut heat exchange with the outdoor air of the outdoor heat exchanger (3). An expansion valve (5) installed between the fan (4), the indoor heat exchanger (1) and the outdoor heat exchanger (3) to expand the refrigerant to be evaporated well, and the low temperature and low pressure The refrigerant gas, which is sucked into the refrigerant gas, converted to a refrigerant state of high temperature and high pressure, and then discharged, and the refrigerant that is installed at the discharge port side of the compressor 6 and the compressed refrigerant is cooled in the outdoor heat exchanger ( 3) In the above heating operation in the room Four-way valve (7) for switching the movement of the refrigerant to be moved to the heat exchanger (1), high-pressure switch (8) for detecting the high pressure of the refrigerant moved in connection with the four-way valve (7), the high-pressure switch flows into It consists of a check valve (9) connected to the high pressure switch (8) so that the refrigerant to be introduced from only one direction.

상기에서, 냉방운전시에는 상기 압축기(6)에서 토출되는 고온고압의 냉매가 상기 실외 열 교환기(3)로 이동되게 되는데, 이때 상기 실외 팬(4)이 동작하지 않는 경우에는 상기 실외 열 교환기(3)의 냉매와 실외공기와의 열 교환이 신속하게 이루어지지 않아 상기 실외 열 교환기(3)에 고압이 걸리게 되고 그 압력이 일정압력 이상이 되면 상기 고압스위치(8)가 동작되어 상기 실외 팬(4)이 동작하지 않고 있음을 알려주게 된다.In the cooling operation, the refrigerant having the high temperature and high pressure discharged from the compressor 6 is moved to the outdoor heat exchanger 3. In this case, when the outdoor fan 4 does not operate, the outdoor heat exchanger ( Since the heat exchange between the refrigerant of 3) and the outdoor air is not performed quickly, high pressure is applied to the outdoor heat exchanger 3, and when the pressure is higher than a predetermined pressure, the high pressure switch 8 is operated to operate the outdoor fan. 4) is not working.

그리고, 난방운전시에는 상기 압축기(6)에서 토출되는 고온고압의 냉매가 상기 실내 열 교환기(1)로 이동되게 되는데, 이때에도 냉방운전시와 마찬가지로 상기 실내 팬(2)이 동작하지 않는 경우에는 상기 실내 열 교환기(1)에 고압이 걸리게 되는 동시에 상기 고압스위치(8)가 동작하게 되어 상기 실내 팬(2)이 동작하지 않고 있음을 알려주게 된다.In addition, during the heating operation, the high temperature and high pressure refrigerant discharged from the compressor 6 is moved to the indoor heat exchanger 1. In this case, when the indoor fan 2 does not operate as in the cooling operation, The high pressure is applied to the indoor heat exchanger 1 and the high pressure switch 8 is operated to indicate that the indoor fan 2 is not operating.

한편, 냉방운전시 상기 실내 팬(2)이 동작하지 않는 경우와 난방운전시 상기 실외 팬(3)이 동작하지 않는 경우에는 증발기 측의 열 교환이 제대로 신속하게 이루어지지 않으므로 액냉매가 상기 고압 스위치(8) 쪽으로 유입되고, 그 부하의 증가로 고장을 판정하게 된다.On the other hand, when the indoor fan 2 does not operate during the cooling operation and when the outdoor fan 3 does not operate during the heating operation, since the heat exchange on the evaporator side is not performed quickly, the liquid refrigerant is the high pressure switch. It flows into (8) side, and the failure is judged by the increase of the load.

그러나, 종래의 공기조화기의 송풍팬 고장감지방법은 상기 압축기(6)가 주파수를 달리하여 운전될 수 있는 인버터 압축기를 사용할 때 저주파로 운전되는 경우에는 냉매의 이동이 신속하게 이루어지지 않기 때문에 상기 실내 팬(2) 및 실외 팬(3)이 고장나지 않는 경우에도 상기 고압스위치(8)가 동작되는 문제점이 있다.However, the blower fan failure detection method of the conventional air conditioner is because the refrigerant is not moved quickly when the compressor 6 is operated at a low frequency when using the inverter compressor that can be operated at a different frequency. Even when the indoor fan 2 and the outdoor fan 3 do not fail, the high pressure switch 8 is operated.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 열 교환기의 배관온도와 그 입구공기온도를 감지하여 비교함으로써 송풍팬의 고장을 판정하기 때문에 별도의 고압스위치가 필요없고 저압도 감지할 수 있는 공기조화기의 송풍팬 고장감지방법을 제공하는데 그 목적이 있다.The present invention has been made to solve the above-mentioned problems of the prior art, because it detects the failure of the blower fan by detecting and comparing the pipe temperature of the heat exchanger and its inlet air temperature, no need for a separate high pressure switch and low pressure detection It is an object of the present invention to provide a blower fan failure detection method of an air conditioner.

도 1은 종래 공기조화기의 구성도,1 is a configuration diagram of a conventional air conditioner,

도 2는 본 발명에 의한 공기조화기의 구성도,2 is a configuration diagram of an air conditioner according to the present invention;

도 3은 본 발명에 의한 공기조화기의 송풍팬 고장감지방법의 순서도이다.3 is a flow chart of the blower fan failure detection method of the air conditioner according to the present invention.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

51 : 실내 열 교환기 51a : 실내배관 온도센서 52 : 실내 팬51: indoor heat exchanger 51a: indoor piping temperature sensor 52: indoor fan

53 : 실외 열 교환기 53a : 실외배관 온도센서 54 : 실외 팬53: outdoor heat exchanger 53a: outdoor piping temperature sensor 54: outdoor fan

55 : 팽창밸브 56 : 압축기 57 : 사방밸브55: expansion valve 56: compressor 57: four-way valve

61 : 실내입구온도 감지센서 62 : 실외입구온도 감지센서61: indoor inlet temperature sensor 62: outdoor inlet temperature sensor

70 : 제어부 80 : 표시부70: control unit 80: display unit

FT1: 제 1실험값 FT2: 제 2실험값 FT3: 제 3실험값FT 1 : First Experimental Value FT 2 : Second Experimental Value FT 3 : Third Experimental Value

FT4: 제 4실험값 T1: 실외 열 교환기의 배관온도FT 4 : Experimental Value T 1 : Piping Temperature of Outdoor Heat Exchanger

T2: 실내 열 교환기의 배관온도 T3: 실외 열 교환기의 입구공기온도T 2 : Pipe temperature of indoor heat exchanger T 3 : Inlet air temperature of outdoor heat exchanger

T4: 실내 열 교환기의 입구공기온도T 4 : Inlet air temperature of the indoor heat exchanger

본 발명은 실내외 열 교환기의 배관온도와 상기 실내외 열 교환기의 입구공기온도를 감지하는 온도감지단계과, 상기 온도감지단계에서 감지된 온도를 상호 비교하여 송풍팬의 고장여부를 판정하는 고장판정단계를 포함하여 구성된 것을 특징으로 한다.The present invention includes a temperature sensing step of detecting the pipe temperature of the indoor and outdoor heat exchanger and the inlet air temperature of the indoor and outdoor heat exchanger, and a failure determination step of determining whether the blower fan is broken by comparing the temperature detected in the temperature sensing step with each other. Characterized in that configured.

여기서, 상기 고장판정단계는 냉방운전시 실외 열 교환기의 배관온도에서 그 입구공기온도를 뺀 값이 일정값 이상이면 실외 팬이 고장난 것으로 판정하고, 실내 열 교환기의 배관온도에서 그 입구공기온도를 뺀 값이 일정값 이상이면 실내 팬이 고장난 것으로 판정하며;Here, the fault determination step is determined that the outdoor fan has failed if the value obtained by subtracting the inlet air temperature from the pipe temperature of the outdoor heat exchanger during the cooling operation is a predetermined value or more, and subtracted the inlet air temperature from the pipe temperature of the indoor heat exchanger. If the value is above a certain value, it is determined that the indoor fan has failed;

난방운전시 실외 열 교환기의 배관온도에서 그 입구공기온도를 뺀 값이 일정값 이상이면 실외 팬이 고장난 것으로 판정하고, 실내 열 교환기의 배관온도에서 그 입구공기온도를 뺀 값이 일정값 이상이면 실내 팬이 고장난 것으로 판정하는 것을 특징으로 한다.If the temperature of the outdoor heat exchanger subtracted from the inlet air temperature exceeds a certain value, the fan is judged to be out of order. It is characterized by determining that the fan has failed.

이하, 본 발명의 실시예를 참조된 도면을 참조하여 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

우선 참조된 도면, 도 2는 본 발명에 의한 공기조화기의 구성도이고, 도 3은 본 발명에 의한 공기조화기의 송풍팬 고장감지방법의 순서도이다.2 is a configuration diagram of an air conditioner according to the present invention, Figure 3 is a flow chart of the blower fan failure detection method of the air conditioner according to the present invention.

본 발명에 의한 공기조화기는 도 2에 도시된 바와 같이 실내 열 교환기(51)의 배관온도(T2)를 감지하는 실내배관 온도센서(51a)와, 실외 열 교환기(53)의 배관온도(T1)를 감지하는 실외배관 온도센서(53a)와, 상기 실내 열 교환기(51)의 입구공기온도(T4)를 감지하는 실내입구온도 감지센서(61)와, 상기 실외 열 교환기(53)의 입구공기온도(T3)를 감지하는 실외입구온도 감지센서(62)가 기존의 공기조화기에 부가적으로 설치되어 있고, 상기한 온도센서들(51a, 53a, 61, 62)에 연결되어 감지된 온도들(T1,T2,T3,T4)를 서로 비교하여 실내 팬(61)과 실외 팬(62)의 고장여부를 판정하는 제어부(70)와, 상기 제어부(70)에서 판정한 내용을 외부에 표시하는 표시부(80)가 또한 설치되어 있다.As shown in FIG. 2, the air conditioner according to the present invention has an indoor pipe temperature sensor 51a for detecting a pipe temperature T 2 of the indoor heat exchanger 51 and a pipe temperature T of the outdoor heat exchanger 53. 1 ) of the outdoor pipe temperature sensor (53a) for detecting, the inlet air temperature sensor (61) for detecting the inlet air temperature (T 4 ) of the indoor heat exchanger (51), and of the outdoor heat exchanger (53) The outdoor inlet temperature sensor 62 for detecting the inlet air temperature T 3 is additionally installed in the existing air conditioner, and connected to the temperature sensors 51a, 53a, 61, and 62 to detect the inlet air temperature T 3 . The controller 70 determines whether the indoor fan 61 and the outdoor fan 62 have failed by comparing the temperatures T 1, T 2, T 3, and T 4 with each other, and determined by the controller 70. A display unit 80 for displaying the contents to the outside is also provided.

물론, 사방밸브(57)에 연결되어 있던 고압스위치 등은 제거된 상태이다.Of course, the high pressure switch and the like connected to the four-way valve 57 are removed.

상기에서, 도 3을 참조하여 실내 팬(52)과 실외 팬(54)의 고장감지 방법을 설명하면 다음과 같다.In the above, a failure detection method of the indoor fan 52 and the outdoor fan 54 will be described with reference to FIG. 3.

먼저, 운전이 시작되어 일정시간동안 운전이 계속된 다음, 상기 실내배관 온도센서(51a), 상기 실외배관 온도센서(53a), 상기 실내입구 온도센서(61), 실외입구 온도센서(62)가 각각 상기 실내 열 교환기의 배관온도(T2), 상기 실외 열 교환기의 배관온도(T1), 상기 실내 열 교환기의 입구공기온도(T4), 상기 실외 열 교환기의 입구공기온도(T3)를 감지한다.First, operation is started and operation continues for a predetermined time, and then the indoor pipe temperature sensor 51a, the outdoor pipe temperature sensor 53a, the indoor inlet temperature sensor 61, and the outdoor inlet temperature sensor 62 The pipe temperature T 2 of the indoor heat exchanger, the pipe temperature T 1 of the outdoor heat exchanger, the inlet air temperature T 4 of the indoor heat exchanger, and the inlet air temperature T 3 of the outdoor heat exchanger, respectively Detect it.

상술한 바와 같이 감지된 각각의 온도값은 상기 제어부(70)로 입력되고, 상기 제어부(70)에서는 상기 실내 팬(52)과 상기 실외 팬(54)의 고장여부를 판정하게 되는데, 우선 냉방운전의 경우에는 상기 실외 열 교환기의 배관온도(T1)에서 상기 실외 열 교환기의 입구공기온도(T3)를 뺀 값이 제 1실험값(FT1) 이상이면 상기 실외 팬(54)이 고장난 것으로 판정하여 표시부(80)에 실외 팬(54) 고장신호를 출력하고 운전을 중단하며, 상기 실내 열 교환기의 입구공기온도(T4)에서 상기 실내 열 교환기의 배관온도(T2)를 뺀 값이 제 2실험??(FT2) 이상이면 상기 실내 팬(52)이 고장난 것으로 판정하여 상기 표시부(80)에 실내 팬 고장신호를 출력하고 운전을 중단한다.Each temperature value detected as described above is input to the control unit 70, and the control unit 70 determines whether the indoor fan 52 and the outdoor fan 54 have a failure. In the case of, when the pipe temperature T 1 of the outdoor heat exchanger is obtained by subtracting the inlet air temperature T 3 of the outdoor heat exchanger from the first experimental value FT 1 or more, it is determined that the outdoor fan 54 has failed. Outputting an outdoor fan 54 failure signal to the display unit 80 and stopping operation, and a value obtained by subtracting the piping temperature T 2 of the indoor heat exchanger from the inlet air temperature T 4 of the indoor heat exchanger is zero; If it is equal to or more than two experiments (FT 2 ), it is determined that the indoor fan 52 has failed and an indoor fan failure signal is output to the display unit 80 and the operation is stopped.

그리고 난방운전의 경우에는 상기 실외 열 교환기의 입구공기온도(T3)에서 상기 실외 열 교환기의 배관온도(T1)를 뺀 값이 제 3실험값(FT3)이상이면 상기 실외 팬(54)이 고장난 것으로 판정하여 상기 표시부(80)에 실외 팬(54) 고장신호를 출력하고 운전을 중단시키고, 상기 실내 열 교환기의 배관온도(T2)에서 상기 실내 열 교환기의 입구공기온도(T4)를 ?? 값이 제 4실험값(FT4) 이상이면 상기 실내 팬(52)이 고장난 것으로 판정하여 상기 표시부(80)에 실내 팬(52) 고장신호를 출력하고 운전을 중단시킨다.In the case of heating operation, if the value obtained by subtracting the pipe temperature T 1 of the outdoor heat exchanger from the inlet air temperature T 3 of the outdoor heat exchanger is equal to or greater than a third experimental value FT 3, the outdoor fan 54 is turned on. It is determined that there is a failure and outputs an outdoor fan 54 failure signal to the display unit 80 and stops the operation. Then, the inlet air temperature T 4 of the indoor heat exchanger is set at the pipe temperature T 2 of the indoor heat exchanger. ?? If the value is greater than or equal to the fourth experimental value FT 4 , it is determined that the indoor fan 52 has failed, and the indoor fan 52 failure signal is output to the display unit 80 and the operation is stopped.

여기서, 상기한 바와 같은 방법으로 상기 실내 팬(52)과 실외 팬(54)의 고장을 판정할 수 있는 것은 냉난방운전시 상기 실내외 팬(52, 54)이 고장나게 되면 실내외 공기와의 열 교환이 제대로 신속하게 이루어지지 않게 되어 상기 실내외 열 교환기의 배관온도(T1,T3)와 입구공기온도(T2, T4)와의 차이가 시간이 지남에 따라 증가하기 때문이다.Here, it is possible to determine the failure of the indoor fan 52 and the outdoor fan 54 by the above-described method. When the indoor and outdoor fans 52 and 54 fail during the heating and cooling operation, heat exchange with the indoor and outdoor air is performed. This is because the difference between the pipe temperature (T 1, T 3 ) and the inlet air temperature (T 2 , T 4 ) of the indoor and outdoor heat exchanger increases over time.

그리고, 실험적으로 상기 제 1실험값(FT1)은 25℃, 상기 제 2실험값(FT2)은 28℃, 상기 제 3실험값(FT3)은 15℃, 상기 제 4실험값(FT4)은 40℃가 가장 바람직한 값이다.Experimentally, the first experimental value FT 1 is 25 ° C, the second experimental value FT 2 is 28 ° C, the third experimental value FT 3 is 15 ° C, and the fourth experimental value FT 4 is 40 ° C. ° C is the most preferred value.

이와 같이, 본 발명에 의한 공기조화기의 송풍팬 고장감지방법은 상기 실내외 팬(52, 54)의 고장을 감지하기 위하여 고압스위치 같은 별도의 장치를 구성하지 않아도 되고, 상기 실험값들(T1, T2, T3, T4)을 조정하면 상기 실내외 열 교환기(51, 53)가 고압의 상태로 되기 전에 상기 실내외 팬(52, 54)의 고장을 감지할 수 있는 동시에 저압의 상태도 감지할 수 있는 효과를 제공한다.As such, the blower fan failure detection method of the air conditioner according to the present invention does not need to configure a separate device such as a high pressure switch in order to detect the failure of the indoor and outdoor fans 52 and 54, and the experimental values T 1 ,. T 2 , T 3 , T 4 ) can detect the failure of the indoor / outdoor fans 52, 54 before the indoor / outdoor heat exchangers 51, 53 become high pressure and at the same time detect the state of low pressure. It can be effective.

Claims (1)

실내외 열 교환기의 배관온도와 상기 실내외 열 교환기의 입구공기온도를 감지하는 온도감지단계과, 상기 온도감지단계에서 감지된 온도를 상호 비교하여 송풍팬의 고장여부를 판정하는 고장판정단계를 포함하여 구성된 것을 특징으로 하는 공기조화기의 송풍팬 고장감지방법.And a temperature determining step of detecting a pipe temperature of an indoor / outdoor heat exchanger and an inlet air temperature of the indoor / external heat exchanger, and a failure determining step of determining whether a blower fan is broken by comparing the temperature detected in the temperature detecting step with each other. Blowing fan failure detection method of the air conditioner characterized in that.
KR1019990016064A 1999-05-04 1999-05-04 Fan trouble sensing method for air conditioner KR20000073043A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104531A (en) * 2013-01-15 2013-05-15 莱芜钢铁集团有限公司 Method and device for detecting draught fan insufficient output fault
CN109253523A (en) * 2018-09-27 2019-01-22 四川长虹电器股份有限公司 A kind of domestic air conditioning integrated system, intelligence control system and control method
CN109899992A (en) * 2019-03-18 2019-06-18 广东芬尼科技股份有限公司 Water heater and its detection method based on sensor detection blower fan failure
CN111750503A (en) * 2020-05-19 2020-10-09 海信(山东)空调有限公司 Air conditioner and control method
CN112161383A (en) * 2020-08-28 2021-01-01 珠海格力电器股份有限公司 Control method and device of air conditioner, electronic equipment and storage medium
CN112594865A (en) * 2020-12-09 2021-04-02 珠海格力电器股份有限公司 Fan fault processing method and device and electronic device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104531A (en) * 2013-01-15 2013-05-15 莱芜钢铁集团有限公司 Method and device for detecting draught fan insufficient output fault
CN109253523A (en) * 2018-09-27 2019-01-22 四川长虹电器股份有限公司 A kind of domestic air conditioning integrated system, intelligence control system and control method
CN109899992A (en) * 2019-03-18 2019-06-18 广东芬尼科技股份有限公司 Water heater and its detection method based on sensor detection blower fan failure
CN111750503A (en) * 2020-05-19 2020-10-09 海信(山东)空调有限公司 Air conditioner and control method
CN112161383A (en) * 2020-08-28 2021-01-01 珠海格力电器股份有限公司 Control method and device of air conditioner, electronic equipment and storage medium
CN112594865A (en) * 2020-12-09 2021-04-02 珠海格力电器股份有限公司 Fan fault processing method and device and electronic device
CN112594865B (en) * 2020-12-09 2021-11-16 珠海格力电器股份有限公司 Fan fault processing method and device and electronic device

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