KR20090051479A - An air conditioner and control method thereof - Google Patents

An air conditioner and control method thereof Download PDF

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Publication number
KR20090051479A
KR20090051479A KR1020070117891A KR20070117891A KR20090051479A KR 20090051479 A KR20090051479 A KR 20090051479A KR 1020070117891 A KR1020070117891 A KR 1020070117891A KR 20070117891 A KR20070117891 A KR 20070117891A KR 20090051479 A KR20090051479 A KR 20090051479A
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South Korea
Prior art keywords
compressor
outdoor fan
fan motor
air conditioner
frequency
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KR1020070117891A
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Korean (ko)
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장원서
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삼성전자주식회사
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Priority to KR1020070117891A priority Critical patent/KR20090051479A/en
Publication of KR20090051479A publication Critical patent/KR20090051479A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/025—Motor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/029—Control issues
    • F25B2313/0294—Control issues related to the outdoor fan, e.g. controlling speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/15—Power, e.g. by voltage or current

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

Abstract

본 발명은 공기조화기 및 그 제어방법에 관한 것으로, 본 발명은 실외팬모터, 압축기, 상기 실외팬모터 및 압축기의 운전 주파수를 확인하여, 상기 실외팬모터 및 압축기의 운전 주파수가 같다면 상기 압축기 및 실외팬모터의 운전 주파수를 서로 다르게 제어하는 마이컴을 포함한다. The present invention relates to an air conditioner and a method of controlling the same. The present invention checks the operating frequencies of an outdoor fan motor, a compressor, the outdoor fan motor, and a compressor. And a microcomputer to control the operating frequency of the outdoor fan motor differently.

공기조화기, 주파수, 압축기 Air conditioner, frequency, compressor

Description

공기조화기 및 그 제어 방법{An Air Conditioner and Control Method thereof}An air conditioner and control method

본 발명은 인버터 압축기를 사용하는 공기조화기 및 그 제어 방법에 관한 것으로, 더욱 상세하게는 특정 주파수에서 압축기가 운전되지 않도록 압축기의 운전주파수를 제어하는 공기조화기 및 그 제어 방법에 관한 것이다.The present invention relates to an air conditioner using an inverter compressor and a control method thereof, and more particularly, to an air conditioner and a control method for controlling an operating frequency of a compressor such that the compressor is not operated at a specific frequency.

일반적으로, 공기조화기는 실내의 냉방 또는 난방을 위한 목적으로 사용되는 장치로, 실내기 및 실외기 상호간에 냉매를 순환시켜 액체상태의 냉매가 기화할 때에 주위의 열을 흡수하며 액화할 때에 그 열을 방출하는 특성에 의하여 냉기 또는 온기를 공급하며, 실내기 및 실외기 상호간에 순환하는 냉매를 압축하기 위해 인버터 압축기를 사용하고 있다.In general, an air conditioner is a device used for cooling or heating a room, and circulates a refrigerant between an indoor unit and an outdoor unit to absorb ambient heat when the liquid refrigerant evaporates and releases heat when liquefied. In order to supply cold or warm air by the characteristics, an inverter compressor is used to compress the refrigerant circulating between the indoor unit and the outdoor unit.

이러한 인버터 압축기를 사용한 공기조화기로는 대한민국 공개특허공보 1999-0069705호가 있다.As an air conditioner using such an inverter compressor, there is Korean Patent Laid-Open Publication No. 1999-0069705.

동 공보에 개시된 공기조화기는 실내온도와 설정온도의 차를 이용하여 압축기의 주파수를 제어하는데, 예를 들어 냉방운전의 경우 실내온도와 설정온도의 차가 크면 압축기의 주파수를 높은 주파수로 제어하여 실내온도를 급강하시키고, 실 내온도와 설정온도의 차가 작으면 압축기의 주파수를 상대적으로 낮은 주파수로 제어한다. 그리고, 실내온도가 설정온도에 도달했을 때는 압축기를 정지상태로 제어한 후, 다시 실내온도가 설정온도보다 일정치 만큼 높아졌을 때 압축기를 실내온도와 설정온도의 차에 따라 적정주파수로 제어하는 주파수 가변제어를 행한다.The air conditioner disclosed in this publication controls the frequency of the compressor by using the difference between the room temperature and the set temperature. If the difference between the room temperature and the set temperature is small, the frequency of the compressor is controlled at a relatively low frequency. When the indoor temperature reaches the set temperature, the compressor is controlled to a stop state, and when the indoor temperature is raised by a predetermined value higher than the set temperature, the compressor is controlled at an appropriate frequency according to the difference between the indoor temperature and the set temperature. Variable control is performed.

그러나, 이러한 종래 공기조화기에서 가변되는 압축기의 운전 주파수가 실외팬의 운전 주파수와 일치하는 경우 공진이 발생하여 진동 소음을 증가시키는 문제점이 있었다.However, when the operating frequency of the compressor that is variable in the conventional air conditioner matches the operating frequency of the outdoor fan, there is a problem in that the resonance occurs to increase the vibration noise.

본 발명은 전술한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 압축기 및 실외팬의 운전 주파수를 서로 다르게 제어하여 진동 소음을 감소시키는 공기조화기 및 그 제어 방법을 제공함에 있다.The present invention is to solve the above problems, an object of the present invention is to provide an air conditioner and control method for reducing the vibration noise by controlling the operating frequency of the compressor and the outdoor fan differently.

전술한 목적을 달성하기 위한 본 발명의 공기조화기는 실외팬모터, 압축기, 상기 실외팬모터 및 압축기의 운전 주파수를 확인하여, 상기 실외팬모터 및 압축기의 운전 주파수가 같다면 상기 압축기 및 실외팬모터의 운전 주파수를 서로 다르게 제어하는 마이컴을 포함한다.The air conditioner of the present invention for achieving the above object is to check the operating frequency of the outdoor fan motor, the compressor, the outdoor fan motor and the compressor, if the operating frequency of the outdoor fan motor and the compressor is the same, the compressor and the outdoor fan motor It includes a microcomputer to control the operating frequency of the different.

또한, 상기 마이컴은 상기 실외팬모터 및 압축기의 운전 주파수가 같다면, 상기 압축기의 운전 주파수를 변경한다.In addition, the micom changes the operating frequency of the compressor if the operating frequencies of the outdoor fan motor and the compressor are the same.

또한, 상기 마이컴은 상기 실외팬모터 및 압축기의 운전 주파수가 같다면, 상기 실외팬모터의 운전 주파수를 변경한다.In addition, the microcomputer changes the operating frequency of the outdoor fan motor if the operating frequencies of the outdoor fan motor and the compressor are the same.

또한, 상기 실외팬모터 및 압축기는 브러쉬리스 직류(BLDC)모터가 적용된다.In addition, the outdoor fan motor and the compressor is applied to a brushless direct current (BLDC) motor.

그리고, 설정온도와 실내온도의 차에 따라 압축기 및 실외팬모터의 운전 주파수를 제어하는 공기조화기에 있어서, 상기 압축기 및 실외팬모터를 구동시키고, 상기 구동되는 압축기 및 실외팬모터의 운전 주파수가 같다면, 상기 압축기 및 실외팬모터의 운전 주파수를 서로 다르게 제어한다.And, in the air conditioner for controlling the operating frequency of the compressor and the outdoor fan motor according to the difference between the set temperature and the indoor temperature, the compressor and the outdoor fan motor is driven, the operating frequency of the driven compressor and the outdoor fan motor is the same Surface, the operating frequencies of the compressor and the outdoor fan motor are controlled differently.

이상에서 상세히 설명한 바와 같이, 본 발명은 동일한 운전 주파수에 의하여 발생하는 공진 현상을 방지하여 소음 발생을 감소시키는 효과가 있다. As described above in detail, the present invention has the effect of reducing the generation of noise by preventing the resonance phenomenon caused by the same operating frequency.

이하에서는 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세하게 설명하도록 한다. Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 1 은 본 발명의 일실시예에 따른 공기조화기의 냉매 유로도이다. 도 1에서 본 발명의 일실시예에 따른 공기조화기는 통상의 냉매싸이클을 형성하는 실외기(10)와, 상기 실외기(10)에 연결되어 실내 냉난방을 행하는 실내기(50)를 구비하며, 상기 실내기(50)와 실외기(10) 사이에는 냉매배관이 설치된다.1 is a refrigerant flow path diagram of an air conditioner according to an embodiment of the present invention. In FIG. 1, an air conditioner according to an embodiment of the present invention includes an outdoor unit 10 forming a normal refrigerant cycle, and an indoor unit 50 connected to the outdoor unit 10 to perform indoor cooling and heating. A refrigerant pipe is installed between the 50 and the outdoor unit 10.

상기 실외기(10)는 냉매를 고온고압의 기체상태로 압축하는 압축기(12)와, 상기 압축기(12)에서 압축된 고온고압 기체냉매의 흐름방향을 운전모드(냉방 또는 난방)에 따라 조절하는 사방밸브(14)와, 상기 압축기(12)에서 압축된 고온고압의 기체냉매를 전달받아 실외공기와 열교환하는 실외열교환기(16)와, 상기 실외열교환기(16)에서 열교환이 이루어지도록 실외팬모터(20)에 의해 실외공기를 강제 송풍시키는 실외팬(18)과, 냉매 유량을 조절하면서 열교환된 냉매를 감압 팽창시키는 전자팽창밸브(22, EEV: Electronic Expansion Valve)를 포함한다.The outdoor unit 10 is a compressor 12 for compressing a refrigerant into a gaseous state of high temperature and high pressure, and the flow direction of the high temperature and high pressure gas refrigerant compressed by the compressor 12 is adjusted in all directions according to an operation mode (cooling or heating). The valve 14, the outdoor heat exchanger 16 which receives the high temperature and high pressure gas refrigerant compressed by the compressor 12 and exchanges heat with the outdoor air, and the outdoor fan motor to perform heat exchange in the outdoor heat exchanger 16. An outdoor fan 18 for forcibly blowing outdoor air by the air 20, and an electronic expansion valve 22 (EEV: Electronic Expansion Valve) for decompressively expanding the heat exchanged refrigerant while adjusting the refrigerant flow rate.

압축기(12)의 흡입측에는 압축기(12)에 유입되는 냉매를 완전 기체상태의 가 스로 변환시키는 어큐뮬레이터(24)가 설치된다. 그리고, 압축기(12) 및 실외팬모터(20)에는 BLDC모터가 적용되어 주파수가 가변제어된다. At the suction side of the compressor 12, an accumulator 24 for converting the refrigerant flowing into the compressor 12 into gas in a completely gaseous state is provided. In addition, a BLDC motor is applied to the compressor 12 and the outdoor fan motor 20 so that the frequency is variably controlled.

실내기(50)는 냉매를 전달받아 실내공기와 열교환하는 실내열교환기(52)와, 실내열교환기(52)에서 열교환이 이루어지도록 실내팬모터(54)에 의해 실내공기를 강제 송풍시키는 실내팬(56)을 포함한다.The indoor unit 50 includes an indoor heat exchanger 52 that receives refrigerant and exchanges heat with the indoor air, and an indoor fan for which the indoor air is forcedly blown by the indoor fan motor 54 so that heat exchange occurs in the indoor heat exchanger 52 ( 56).

이와 같이 구성된 실외기(10)와 실내기(50)를 가지는 공기조화기에서, 난방 시에는 냉매가 도 1의 점선화살표 방향을 따라 압축기(12)→ 사방밸브(14)→ 실내열교환기(52)→ 전자팽창밸브(22)→ 실외열교환기(16)→ 사방밸브(14)→ 어큐뮬레이터(24)→ 압축기(12) 순으로 순환되는 냉매싸이클을 형성한다.In the air conditioner having the outdoor unit 10 and the indoor unit 50 configured as described above, during heating, the refrigerant flows along the direction of the dotted arrow in FIG. 1 from the compressor 12 to the four-way valve 14 to the indoor heat exchanger 52. A refrigerant cycle circulated in the order of the electromagnetic expansion valve 22 → the outdoor heat exchanger 16 → the four-way valve 14 → the accumulator 24 → the compressor 12 is formed.

반면, 냉방 시에는 냉매가 도 1의 실선화살표 방향을 따라 압축기(12)→ 사방밸브(14)→ 실외열교환기(16)→ 전자팽창밸브(22)→ 실내열교환기(52)→ 사방밸브(14)→ 어큐뮬레이터(24)→ 압축기(12) 순으로 순환되는 냉매싸이클을 형성한다.On the other hand, during cooling, the refrigerant flows along the direction of the solid arrow in FIG. 1 to the compressor 12 → the four-way valve 14 → the outdoor heat exchanger 16 → the electromagnetic expansion valve 22 → the indoor heat exchanger 52 → the four-way valve ( 14) a refrigerant cycle circulated in the order of accumulator 24 to compressor 12 is formed.

도 2는 본 발명의 일실시예에 따른 공기조화기의 제어 구성도로써, 실내온도감지부(110), 마이컴(120), 압축기 구동부(130), 제 1 주파수 측정부(140), 실외팬모터 구동부(150), 제 2 주파수 측정부(160) 및 표시부(170)를 포함하여 구성된다. 2 is a control configuration diagram of an air conditioner according to an embodiment of the present invention, the indoor temperature detecting unit 110, the microcomputer 120, the compressor driving unit 130, the first frequency measuring unit 140, and an outdoor fan. The motor driving unit 150, the second frequency measuring unit 160, and the display unit 170 are configured to be included.

입력부(100)는 사용자가 선택하는 운전모드(냉방 또는 난방)와 설정온도, 설정풍량 등의 운전정보를 입력하도록 실내기(50) 또는 리모컨에 구비된 다수의 키를 포함한다.The input unit 100 includes a plurality of keys provided in the indoor unit 50 or the remote controller to input operation information such as a driving mode (cooling or heating) selected by a user, a set temperature, a set air volume, and the like.

실내온도감지부(110)는 실내기(50)내로 흡입되는 실내공기의 온도를 감지하고, 감지된 정보를 마이컴(120)으로 전송한다. The indoor temperature detecting unit 110 detects a temperature of indoor air sucked into the indoor unit 50, and transmits the detected information to the microcomputer 120.

마이컴(120)은 입력부(100)를 통하여 설정온도를 입력받고, 실내온도감지부(110)를 통하여 실내온도를 입력받는다. 마이컴(120)에는 설정온도와 실내온도의 차에 따른 압축기(12) 및 실외팬모터(20)의 목표 주파수가 설정되어 있으며, 마이컴(120)은 공기조화기의 운전시 설정온도와 실내온도의 차에 따라 설정된 압축기(12) 및 실외팬모터(20)의 목표 주파수가 동일한 주파수라면, 마이컴(120)은 압축기(12) 또는 실외팬모터(20)의 목표 주파수를 변경하여 같은 주파수로 구동시 발생하는 공진을 차단한다. The microcomputer 120 receives a set temperature through the input unit 100 and receives a room temperature through the indoor temperature detecting unit 110. In the microcomputer 120, the target frequencies of the compressor 12 and the outdoor fan motor 20 are set according to the difference between the set temperature and the indoor temperature. If the target frequencies of the compressor 12 and the outdoor fan motor 20 set according to the difference are the same frequency, the microcomputer 120 changes the target frequency of the compressor 12 or the outdoor fan motor 20 to drive the same frequency. Shut off the resonance that occurs.

그리고, 마이컴(120)은 압축기(12) 및 실외팬모터(20)가 상기 목표 주파수에 이르는 도중에 동일한 운전 주파수로 구동되는 것을 방지하기 위하여, 후술할 주파수 측정부(140,160)에서 측정된 압축기(12) 및 실외팬모터(20)의 운전 주파수를 이용하여 압축기(12) 및 실외팬모터(20)가 동일한 운전 주파수로 구동되지 않도록 제어한다. In addition, the microcomputer 120 prevents the compressor 12 and the outdoor fan motor 20 from being driven at the same operating frequency while reaching the target frequency. The compressor 12 measured by the frequency measuring units 140 and 160 to be described later will be described. And the operating frequency of the outdoor fan motor 20 to control the compressor 12 and the outdoor fan motor 20 not to be driven at the same operating frequency.

압축기구동부(130)는 마이컴(120)의 압축기제어신호에 따라 압축기(12)의 운전 주파수를 제어하는 인버터이고, 제 1 주파수 측정부(140)는 구동중인 압축기(12)의 운전 주파수를 측정하여 마이컴(120)으로 전송한다.The compressor driver 130 is an inverter for controlling the operating frequency of the compressor 12 according to the compressor control signal of the microcomputer 120, and the first frequency measuring unit 140 measures the operating frequency of the compressor 12 being driven. Send to the microcomputer 120.

실외팬모터구동부(150)는 마이컴(120)의 실외팬제어신호에 따라 실외팬모터(20)의 운전 주파수를 제어하는 인버터이고, 제 2 주파수 측정부(160)는 구동중인 실외팬모터의 운전 주파수를 측정하여 마이컴(120)으로 전송한다.. The outdoor fan motor driver 150 is an inverter that controls the operating frequency of the outdoor fan motor 20 according to the outdoor fan control signal of the microcomputer 120, and the second frequency measuring unit 160 operates the outdoor fan motor being driven. The frequency is measured and transmitted to the microcomputer 120.

표시부(170)는 마이컴(120)의 표시제어신호에 따라 공기조화기의 운전상태와 에러모드 등을 표시한다.The display unit 170 displays an operation state and an error mode of the air conditioner according to the display control signal of the microcomputer 120.

이하에서는 도 3 을 참조하여 본 발명의 일실시예에 따른 공기조화기의 제어방법을 설명한다.Hereinafter, a control method of an air conditioner according to an embodiment of the present invention will be described with reference to FIG. 3.

사용자가 입력부(100)를 통해 원하는 운전모드(냉방 또는 난방)와 설정온도, 설정풍량 등의 정보를 선택하면, 선택된 정보가 마이컴(120)에 입력된다(200).When the user selects the desired operation mode (cooling or heating), the set temperature, the set air volume, etc. through the input unit 100, the selected information is input to the microcomputer 120 (200).

200 단계에서 운전정보가 입력되면, 마이컴(120)은 실내온도 감지부(110)에서 감지된 실내온도를 입력받고, 상기 입력된 설정온도 및 실내온도의 차에 따라 압축기(12) 및 실외팬모터(20)의 목표 주파수를 각각 결정한다(210).When the driving information is input in step 200, the microcomputer 120 receives the indoor temperature detected by the indoor temperature sensor 110 and the compressor 12 and the outdoor fan motor according to the difference between the set temperature and the indoor temperature. Each target frequency of 20 is determined (210).

210 단계에서 압축기(12) 및 실외팬모터(20)의 목표 주파수가 각각 결정되면, 마이컴(120)은 상기 결정된 목표 주파수가 동일하여 공진을 일어날 수 있는 상황을 방지하기 위하여 목표 주파수가 동일한지 비교한다(220).When the target frequencies of the compressor 12 and the outdoor fan motor 20 are determined in step 210, the microcomputer 120 compares whether the target frequencies are the same to prevent a situation in which resonance may occur due to the determined target frequencies being the same. (220).

220단계의 비교결과 목표 주파수가 같다면, 마이컴(120)은 압축기(12) 또는 실외팬모터(20)의 목표 주파수를 변경하여 압축기(12) 및 실외팬모터(20)을 구동한다(230).If the target frequency is the same as the comparison result of step 220, the microcomputer 120 changes the target frequency of the compressor 12 or the outdoor fan motor 20 to drive the compressor 12 and the outdoor fan motor 20 (230). .

한편, 220단계의 비교결과 목표 주파수가 동일하지 않으면, 마이컴(120)은 압축기(12) 및 실외팬모터(20)를 각각 다르게 설정된 목표주파수로 구동시킨다(240).On the other hand, if the target frequency is not the same as the comparison step 220, the microcomputer 120 drives the compressor 12 and the outdoor fan motor 20 to the target frequency set differently (240).

230 단계 또는 240 단계에 의하여 압축기(12) 및 실외팬모터(20)가 구동되면, 마이컴(120)은 압축기(12) 및 실외팬모터(20)가 목표 주파수에 이르는 도중 같은 운전 주파수로 구동되는지 판단하기 위하여 제 1 주파수 측정부(140) 및 제 2 주파수 측정부(160)에서 측정된 주파수가 동일한지 비교한다(250).When the compressor 12 and the outdoor fan motor 20 are driven by 230 or 240, the microcomputer 120 is driven at the same operating frequency while the compressor 12 and the outdoor fan motor 20 reach the target frequency. In order to determine whether the frequency measured by the first frequency measuring unit 140 and the second frequency measuring unit 160 is the same (250).

250 단계의 비교결과 구동중인 압축기(12) 및 실외팬모터(20)의 운전 주파수가 동일하다면 마이컴(120)은 압축기(12) 또는 실외팬모터(20)의 운전 주파수를 변경하여 동일한 주파수로 구동되는 시간을 감소시킨다(260).If the operation frequency of the compressor 12 and the outdoor fan motor 20 are the same as the comparison result of 250 steps, the microcomputer 120 changes the operating frequency of the compressor 12 or the outdoor fan motor 20 to drive the same frequency. Reduce the time to become (260).

마이컴(120)은 입력부를 통하여 운전 종료가 입력되지 않으면, 210 단계로 리턴하여 실내온도 및 설정온도에 따라 지속적으로 압축기 및 실외팬모터의 주파수 제어를 수행하며, 운전 종료가 입력되면 작업을 종료한다(270).If the operation end is not input through the input unit, the microcomputer 120 returns to step 210 to continuously control the frequency of the compressor and the outdoor fan motor according to the indoor temperature and the set temperature, and ends the operation when the operation end is input. (270).

이상 본 발명의 일실시예에서는 BLDC모터가 적용된 실외팬모터가 장착된 공기조화기에서 압축기 및 실외팬모터가 동일한 운전 주파수로 구동되는 것을 방지하는 예를 들었다. 하지만, 본 발명은 이에 한정되지 않고 고정된 운전 주파수로 구동되는 모터가 적용된 실외팬모터가 장착된 공기조화기에서도 실외팬모터 및 압축기가 동일한 주파수로 구동되는 것을 방지하는 제어가 가능하다. In the above-described embodiment of the present invention, the compressor and the outdoor fan motor are prevented from being driven at the same operating frequency in the air conditioner equipped with the outdoor fan motor to which the BLDC motor is applied. However, the present invention is not limited thereto, and even in an air conditioner equipped with an outdoor fan motor to which a motor driven at a fixed driving frequency is applied, it is possible to prevent the outdoor fan motor and the compressor from being driven at the same frequency.

도 1 은 본 발명의 일실시예에 따른 공기조화기의 냉매 유로도이다.1 is a refrigerant flow path diagram of an air conditioner according to an embodiment of the present invention.

도 2 는 본 발명의 일실시예에 따른 공기조화기의 제어 구성도이다.2 is a control block diagram of an air conditioner according to an embodiment of the present invention.

도 3 은 본 발명의 일실시예에 따른 공기조화기의 제어 방법을 도시한 흐름도이다.3 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention.

* 도면의 주요 부분에 대한 부호 설명 *Explanation of symbols on the main parts of the drawings

10 : 실외기 12 : 압축기10: outdoor unit 12: compressor

20 : 실외팬모터 100 : 사용자입력부 20: outdoor fan motor 100: user input unit

110 : 실내온도감지부 120 : 마이컴 110: room temperature detection unit 120: microcomputer

130 : 압축기구동부 140 : 제 1 주파수 측정부130 compressor driving unit 140 first frequency measuring unit

150 : 실외팬모터 구동부 160 : 제 2 주파수 측정부150: outdoor fan motor drive unit 160: second frequency measurement unit

Claims (5)

실외팬모터;Outdoor fan motor; 압축기;compressor; 상기 실외팬모터 및 압축기의 운전 주파수를 확인하여, 상기 실외팬모터 및 압축기의 운전 주파수가 같다면 상기 압축기 및 실외팬모터의 운전 주파수를 서로 다르게 제어하는 마이컴을 포함하는 공기조화기. Checking the operating frequency of the outdoor fan motor and the compressor, if the operating frequency of the outdoor fan motor and the compressor is the same air conditioner including a microcomputer to control the operation frequency of the compressor and the outdoor fan motor differently. 제 1 항에 있어서,The method of claim 1, 상기 마이컴은 상기 실외팬모터 및 압축기의 운전 주파수가 같다면, 상기 압축기의 운전 주파수를 변경하는 공기조화기.The microcomputer is configured to change the operating frequency of the compressor if the operating frequency of the outdoor fan motor and the compressor is the same. 제 1 항에 있어서,The method of claim 1, 상기 마이컴은 상기 실외팬모터 및 압축기의 운전 주파수가 같다면, 상기 실외팬모터의 운전 주파수를 변경하는 공기조화기.The micom is an air conditioner for changing the operating frequency of the outdoor fan motor, if the operating frequency of the outdoor fan motor and the compressor. 제 1 항에 있어서,The method of claim 1, 상기 실외팬모터 및 압축기는 브러쉬리스 직류(BLDC)모터가 적용된 공기조화기.The outdoor fan motor and the compressor is a brushless direct current (BLDC) motor air conditioner is applied. 설정온도와 실내온도의 차에 따라 압축기 및 실외팬모터의 운전 주파수를 제어하는 공기조화기에 있어서,In the air conditioner for controlling the operating frequency of the compressor and the outdoor fan motor according to the difference between the set temperature and the room temperature, 상기 압축기 및 실외팬모터를 구동시키고,Driving the compressor and the outdoor fan motor, 상기 구동되는 압축기 및 실외팬모터의 운전 주파수가 같다면,If the operating frequency of the driven compressor and the outdoor fan motor is the same, 상기 압축기 및 실외팬모터의 운전 주파수를 서로 다르게 제어하는 공기조화기의 제어방법. Control method of the air conditioner for controlling the operation frequency of the compressor and the outdoor fan motor differently.
KR1020070117891A 2007-11-19 2007-11-19 An air conditioner and control method thereof KR20090051479A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104296497A (en) * 2014-10-31 2015-01-21 合肥美的电冰箱有限公司 Control method and control device of refrigerator
CN108386973A (en) * 2018-03-05 2018-08-10 奥克斯空调股份有限公司 Outdoor machine of air-conditioner control method and device
CN108826603A (en) * 2018-06-14 2018-11-16 广东美的制冷设备有限公司 Control method, device, air conditioner and its remote controler of air conditioner
CN109253521A (en) * 2018-09-30 2019-01-22 珠海格力电器股份有限公司 Noise control method, device and system, air conditioner and computer readable storage medium
CN110567130A (en) * 2019-09-23 2019-12-13 珠海格力电器股份有限公司 air conditioner control method and device, storage medium and air conditioner
WO2021233464A1 (en) * 2020-10-29 2021-11-25 青岛海尔空调电子有限公司 Control method for reducing air conditioner noise, and air conditioner using same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104296497A (en) * 2014-10-31 2015-01-21 合肥美的电冰箱有限公司 Control method and control device of refrigerator
CN108386973A (en) * 2018-03-05 2018-08-10 奥克斯空调股份有限公司 Outdoor machine of air-conditioner control method and device
CN108826603A (en) * 2018-06-14 2018-11-16 广东美的制冷设备有限公司 Control method, device, air conditioner and its remote controler of air conditioner
CN108826603B (en) * 2018-06-14 2021-04-09 广东美的制冷设备有限公司 Control method and device of air conditioner, air conditioner and remote controller thereof
CN109253521A (en) * 2018-09-30 2019-01-22 珠海格力电器股份有限公司 Noise control method, device and system, air conditioner and computer readable storage medium
CN110567130A (en) * 2019-09-23 2019-12-13 珠海格力电器股份有限公司 air conditioner control method and device, storage medium and air conditioner
CN110567130B (en) * 2019-09-23 2020-08-11 珠海格力电器股份有限公司 Air conditioner control method and device, storage medium and air conditioner
WO2021233464A1 (en) * 2020-10-29 2021-11-25 青岛海尔空调电子有限公司 Control method for reducing air conditioner noise, and air conditioner using same

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