KR20010048700A - malfunction detector of refrigerant cycle for air conditioner - Google Patents

malfunction detector of refrigerant cycle for air conditioner Download PDF

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Publication number
KR20010048700A
KR20010048700A KR1019990053499A KR19990053499A KR20010048700A KR 20010048700 A KR20010048700 A KR 20010048700A KR 1019990053499 A KR1019990053499 A KR 1019990053499A KR 19990053499 A KR19990053499 A KR 19990053499A KR 20010048700 A KR20010048700 A KR 20010048700A
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South Korea
Prior art keywords
temperature
refrigerant
indoor
air conditioner
heat exchanger
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KR1019990053499A
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Korean (ko)
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박용호
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구자홍
엘지전자 주식회사
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Priority to KR1019990053499A priority Critical patent/KR20010048700A/en
Publication of KR20010048700A publication Critical patent/KR20010048700A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • 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
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: An abnormality sensor of a refrigerant cycle is provided to repair an air conditioner easily by comparing the current indoor temperature, outdoor temperature, input voltage changes and indoor heat exchanger temperature with pre-saved data and displaying abnormality in mounting and of a refrigerant cycle. CONSTITUTION: An abnormality sensor of a refrigerant cycle includes: an indoor temperature sensor(10); an outdoor temperature sensor(20); an indoor heat exchanger temperature sensor(30); an input voltage change sensor(40); a refrigerant display unit(50) displaying abnormality of refrigerant to a user according to an input control signal; and a control unit(60) saving reference condition data including indoor temperature, outdoor temperature, input voltage change and indoor heat exchanger temperature depending on capacity and overload of an air conditioner, deciding abnormality of refrigerant by comparison between the current condition data and the reference data, and displaying abnormality of refrigerant to a user through the refrigerant display unit. The current condition data are compared with the reference data, and abnormality of refrigerant is displayed through the refrigerant display unit all the time while an air conditioner is run. Therefore, the user checks troubles of the air conditioner easily and repairs the air conditioner promptly.

Description

공기조화기의 냉매사이클 이상감지장치{malfunction detector of refrigerant cycle for air conditioner}Malfunction detector of refrigerant cycle for air conditioner

본 발명은 공기조화기 냉매사이클의 이상유무를 검출하는 위한 것으로, 특히 최초 설치후 시운전시 설치 이상여부와 사용중 냉매사이클의 이상유무를 사용자에게 표시하여 고장수리를 용이하게 하기 위한 공기조화기의 냉매사이클 이상감지장치에 관한 것이다.The present invention is for detecting the abnormality of the air conditioner refrigerant cycle, in particular, the refrigerant of the air conditioner to facilitate troubleshooting by displaying to the user whether the installation abnormality during the initial operation after installation and the abnormality of the refrigerant cycle during use It relates to a cycle abnormality detection device.

종래 냉방운전시 공기조화기의 냉매사이클은 도 1에 나타낸 바와 같이, 저온 저압의 기체 냉매를 압축하여 고온 고압의 기체 냉매를 토출하는 압축기(1)와, 상기 압축기(1)에서 토출된 고온 고압의 기체 냉매를 응축하여 상온 고압의 액체 냉매를 출력하는 실외열교환기(2)와, 상기 실외열교환기(2)에서 입력된 상온 고압의 액체 냉매를 증발하기 쉽게 저온 저압의 액체 냉매를 출력하는 모세관(3)과, 상기 모세관(3)에서 입력된 저온 저압의 액체 냉매를 증발하여 저온 저압의 기체 냉매를 상기 압축기(1)에 출력하는 실내열교환기(4)로 구성된다.As shown in FIG. 1, the refrigerant cycle of a conventional air conditioner includes a compressor 1 for compressing a gas refrigerant having a low temperature and a low pressure to discharge gas refrigerant having a high temperature and high pressure, and a high temperature high pressure discharged from the compressor 1. An outdoor heat exchanger (2) for condensing a gaseous refrigerant at a high temperature and outputting a liquid refrigerant at room temperature and a high pressure, and a capillary tube for outputting a low temperature low pressure liquid refrigerant to easily evaporate the liquid refrigerant at room temperature and high pressure input from the outdoor heat exchanger (2) (3) and an indoor heat exchanger (4) for evaporating the low temperature low pressure liquid refrigerant input from the capillary tube (3) to output the low temperature low pressure gas refrigerant to the compressor (1).

이러한 냉방용 공기조화기를 설치한 경우, 최초 설치후 정상적인 설치여부를 확인하기 위하여 시운전을 하게 되는데, 특히 겨울철에는 실외온도와 실내온도가 낮기 때문에 시운전이 비정상적으로 되어, 공기조화기가 정상적으로 설치되었는지 설치 이상유무를 판단하기가 어려운 문제점이 있었다.In the case of installing such a cooling air conditioner, a trial run is performed to confirm the normal installation after the initial installation. In particular, in winter, the outdoor and indoor temperatures are low, so the trial run is abnormal. It was difficult to determine the presence or absence.

본 발명의 목적은 종래의 문제점을 해소하기 위한 것으로, 특히 현재 실내온도, 실외온도, 입력전압변동, 실내열교환기온도를 기 저장된 데이터와 비교하여 최초 설치후 시운전시 설치 이상유무와 사용중 냉매사이클의 이상유무를 사용자에게 표시하여 고장수리를 용이하게 하기 위한 공기조화기의 냉매사이클 이상감지장치를 제공하는데 있다.An object of the present invention is to solve the conventional problems, and in particular, the current indoor temperature, outdoor temperature, input voltage variation, indoor heat exchanger temperature compared with the pre-stored data, the installation abnormality during the initial installation and the refrigerant cycle during use An object of the present invention is to provide a refrigerant cycle abnormality detecting device of an air conditioner for displaying trouble to a user to facilitate troubleshooting.

본 발명 공기조화기의 냉매사이클 이상감지장치는 실내온도를 검출하는 실내온도 검출부와; 실외온도를 검출하는 실외온도 검출부와; 실내열교환기온도를 검출하는 실내열교환기온도 검출부와; 입력전압의 변동을 검출하는 입력전압변동 검출부와; 입력되는 제어신호에 따라 사용자에게 냉매상태의 이상유무를 표시하는 냉매상태 표시부와; 실내온도, 실외온도, 입력전압변동에 따른 실내열교환기온도에 대한 데이터인 표준조건데이터를 공기조화기의 용량과, 과부하조건에 따라 저장하고 있으며, 운전이 시작되면 상기 실내온도 검출부, 실외온도 검출부, 실내열교환기온도 검출부, 입력전압변동 검출부에서 검출된 실내온도, 실외온도, 입력전압변동 및 실내열교환기온도인 현재조건데이터를 상기 표준조건데이터와 비교하여 냉매상태의 이상유무를 판단하여 상기 냉매상태 표시부를 통해 사용자에게 표시하는 제어부를 포함하여 구성되는 것을 특징으로 한다.Refrigerant cycle abnormality detection device of the air conditioner of the present invention includes an indoor temperature detector for detecting the indoor temperature; An outdoor temperature detector detecting an outdoor temperature; An indoor heat exchanger temperature detector detecting an indoor heat exchanger temperature; An input voltage change detector for detecting a change in the input voltage; A refrigerant state display unit displaying an abnormality of a refrigerant state to a user according to an input control signal; Standard condition data, which is data on indoor heat exchanger temperature according to indoor temperature, outdoor temperature, and input voltage change, is stored according to the capacity of air conditioner and overload condition.When operation starts, the indoor temperature detector and outdoor temperature detector And comparing the present condition data of the indoor temperature, the outdoor temperature, the input voltage variation, and the indoor heat exchanger temperature detected by the indoor heat exchanger temperature detector and the input voltage fluctuation detector with the standard condition data to determine whether there is an abnormal state of the refrigerant. It characterized in that it comprises a control unit to display to the user via the status display unit.

도 1은 일반적인 공기조화기의 냉매사이클을 나타낸 도,1 is a view showing a refrigerant cycle of a general air conditioner,

도 2는 본 발명의 구성을 나타낸 블럭도,2 is a block diagram showing the configuration of the present invention;

도 3은 본 발명의 구성을 나타낸 회로도.3 is a circuit diagram showing a configuration of the present invention.

〈 도면의 주요부분에 대한 부호의 설명 〉<Description of the reference numerals for the main parts of the drawings>

10 : 실내온도 검출부 20 : 실외온도 검출부10: indoor temperature detector 20: outdoor temperature detector

30 : 실내열교환기온도 검출부 40 : 입력전압변동 검출부30: indoor heat exchanger temperature detector 40: input voltage fluctuation detector

50 : 냉매상태 표시부 60 : 제어부50: refrigerant state display unit 60: control unit

본 발명의 실시예를 첨부 도면에 의하여 상세히 설명하면 다음과 같다.An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

본 발명 공기조화기의 냉매사이클 이상감지장치는 도 2에 나타낸 바와 같이, 실내온도를 검출하는 실내온도 검출부(10)와; 실외온도를 검출하는 실외온도 검출부(20)와; 실내열교환기온도를 검출하는 실내열교환기온도 검출부(30)와; 입력전압의 변동을 검출하는 입력전압변동 검출부(40)와; 입력되는 제어신호에 따라 사용자에게 냉매상태의 이상유무를 표시하는 냉매상태 표시부(50)와; 실내온도, 실외온도, 입력전압변동에 따른 실내열교환기온도에 대한 데이터인 표준조건데이터를 공기조화기의 용량과, 과부하조건에 따라 저장하고 있으며, 운전이 시작되면 상기 실내온도 검출부(10), 실외온도 검출부(20), 실내열교환기온도 검출부(30), 입력전압변동 검출부(40)에서 검출된 실내온도, 실외온도, 입력전압변동 및 실내열교환기온도인 현재조건데이터를 상기 표준조건데이터와 비교하여 냉매상태의 이상유무를 판단하여 상기 냉매상태 표시부(50)를 통해 사용자에게 표시하는 제어부(60)로 구성된다.Refrigerant cycle abnormality detection device of the air conditioner of the present invention, as shown in Figure 2, the indoor temperature detection unit 10 for detecting the indoor temperature; An outdoor temperature detector 20 detecting an outdoor temperature; An indoor heat exchanger temperature detector (30) for detecting an indoor heat exchanger temperature; An input voltage change detection unit 40 for detecting a change in the input voltage; A refrigerant state display unit 50 which displays a presence or absence of an abnormal state of the refrigerant to the user according to an input control signal; The standard condition data, which is data on the indoor heat exchanger temperature according to the indoor temperature, the outdoor temperature, and the input voltage change, is stored according to the capacity of the air conditioner and the overload condition. When the operation is started, the indoor temperature detection unit 10, The present condition data, which are the indoor temperature, the outdoor temperature, the input voltage variation, and the indoor heat exchanger temperature detected by the outdoor temperature detector 20, the indoor heat exchanger temperature detector 30, and the input voltage change detector 40, are compared with the standard condition data. In comparison, the controller 60 is configured to determine whether there is an abnormality in the refrigerant state and display the same to the user through the refrigerant state display unit 50.

상기 입력전압변동 검출부(40)는 도 3에 나타낸 바와 같이, 정류된 입력전압을 저항(R2)(R5)을 통해 분배하여 저항(R2)에 걸리는 전압으로 입력전압을 검출한다. 상기 입력전압이 온도에 따라 변동되면 상기 저항(R2)에 걸리는 전압도 변동되므로 입력전압의 변동을 검출하게 된다.As illustrated in FIG. 3, the input voltage fluctuation detecting unit 40 distributes the rectified input voltage through the resistors R2 and R5 to detect the input voltage by the voltage applied to the resistor R2. When the input voltage is changed according to the temperature, the voltage applied to the resistor R2 is also changed to detect a change in the input voltage.

본 발명의 작동을 상세히 설명하면 다음과 같다.Referring to the operation of the present invention in detail as follows.

먼저, 제어부(60)는 실내온도, 실외온도 및 입력전압변동에서 적합한 실내열교환기온도인 표준조건데이터를 저장하고 있다. 즉, 실내온도에 따라, 실외온도에 따라, 입력전압변동에 따라 그에 적합한 실내열교환기온도를 저장하고 있다. 상기 표준조건데이터는 공기조화기의 용량에 따라 달라지므로 공기조화기의 용량에 따라 저장되어 있으며, 과부하조건에 따라 저장되어 있다.First, the control unit 60 stores standard condition data which is an indoor heat exchanger temperature suitable for indoor temperature, outdoor temperature, and input voltage variation. That is, the indoor heat exchanger temperature corresponding to the indoor temperature, the outdoor temperature, and the input voltage change is stored. The standard condition data is stored according to the capacity of the air conditioner because it depends on the capacity of the air conditioner, and is stored according to the overload condition.

상기 제어부(60)는 운전이 시작되면, 상기 실내온도 검출부(10), 실외온도 검출부(20), 실내열교환기온도 검출부(30), 입력전압변동 검출부(40)로부터 실내온도, 실외온도, 입력전압변동 및 실내열교환기온도를 검출한다.When the control unit 60 starts operation, the indoor temperature, outdoor temperature, input from the indoor temperature detector 10, the outdoor temperature detector 20, the indoor heat exchanger temperature detector 30, and the input voltage fluctuation detector 40 are input. Detect voltage fluctuations and room heat exchanger temperature.

상기 검출된 실내온도, 실외온도, 입력전압변동 및 실내열교환기온도인 현재조건데이터를 기 저장된 표준조건데이터와 비교한다. 즉, 현재조건데이터인 실내온도, 실외온도, 입력전압변동에 해당되는 현재 실내열교환기온도를 기 저장된 표준조건데이터의 실내온도, 실외온도, 입력전압변동에 해당되는 표준 실내열교환기온도와 비교하여 그 오차가 소정값 이상인 경우 냉매상태의 이상이 있음(예 : 냉매량의 과부족 여부)을 상기 냉매상태 표시부(50)를 통해 사용자에게 표시한다.The current condition data, which is the detected indoor temperature, outdoor temperature, input voltage variation, and indoor heat exchanger temperature, is compared with previously stored standard condition data. That is, the current indoor heat exchanger temperature corresponding to the current condition data such as indoor temperature, outdoor temperature and input voltage fluctuation is compared with the standard indoor heat exchanger temperature corresponding to the room temperature, outdoor temperature and input voltage fluctuation of the stored standard condition data. If the error is greater than or equal to a predetermined value, the refrigerant status is abnormal (for example, whether or not the amount of refrigerant is insufficient) is displayed to the user through the refrigerant status display unit 50.

이에 따라, 겨울철에 냉방용 공기조화기를 최초로 설치하여 시운전을 하는 경우, 현재조건데이터(실내온도, 실외온도, 입력전압변동, 실내열교환기온도)가 이에 해당되는 표준조건데이터와 비교되어 냉매상태 표시부(50)를 통해 냉매상태의 이상유무가 사용자에게 표시되므로, 사용자는 상기 냉매상태 표시부(50)에 표시된 냉매상태의 이상유무를 통해 공기조화기가 정상적으로 설치되었는지 설치 이상유무를 쉽고 정확하게 알 수 있으며, 냉매상태의 이상이 표시된 경우 그에 대해 신속하게 대처할 수 있다.Accordingly, when the air conditioner for cooling is installed for the first time in winter and the test run is performed, the current condition data (indoor temperature, outdoor temperature, input voltage variation, indoor heat exchanger temperature) is compared with the corresponding standard condition data and the refrigerant status display unit Since the abnormal state of the refrigerant state is displayed to the user through 50, the user can easily and accurately determine whether the air conditioner is normally installed through the abnormal state of the refrigerant state displayed on the refrigerant state display unit 50, If the abnormality of the refrigerant state is indicated, it can be quickly dealt with.

또한, 공기조화기를 사용하는 도중에, 항상 현재조건데이터(실내온도, 실외온도, 입력전압변동, 실내열교환기온도)가 이에 해당되는 표준조건데이터와 비교되어 냉매상태 표시부(50)를 통해 냉매상태의 이상유무가 사용자에게 표시되므로, 사용자는 상기 냉매상태 표시부(50)에 표시된 냉매상태의 이상유무를 통해 공기조화기의 고장유무를 쉽고 정확하게 알 수 있으며, 냉매상태의 이상이 표시된 경우 그에 대한 고장수리를 신속할 수 있다.In addition, during the use of the air conditioner, the current condition data (indoor temperature, outdoor temperature, input voltage fluctuations, indoor heat exchanger temperature) is always compared with the corresponding standard condition data, and the refrigerant status display unit 50 Since the abnormality is displayed to the user, the user can easily and accurately know whether the air conditioner has a fault through the refrigerant state displayed on the refrigerant state display unit 50, and when the abnormality of the refrigerant is displayed, the troubleshooting Can be quickly.

본 발명 공기조화기의 냉매사이클 이상감지장치는 공기조화기 냉매사이클의 이상유무를 검출하기 위한 것으로, 특히 현재 실내온도, 실외온도, 입력전압변동 및 실내열교환기온도를 기 저장된 데이터와 비교하여 냉매사이클의 이상유무를 사용자에게 표시하는 것으로, 현재 실내온도와 실외온도에 관계없이 최초 설치후 시운전시 설치 이상유무와, 사용중 냉매사이클의 이상유무를 사용자가 쉽고 정확하게 파악할 수 있어 냉매상태에 이상이 발생한 경우 그에 대해 신속하게 대처할 수 있도록 하는 유용한 것이다.Refrigerant cycle abnormality detection device of the air conditioner of the present invention is to detect the abnormality of the air conditioner refrigerant cycle, in particular the current indoor temperature, outdoor temperature, input voltage change and indoor heat exchanger temperature compared with the stored data refrigerant By displaying the cycle abnormality to the user, regardless of the current indoor or outdoor temperature, the user can easily and accurately understand the installation abnormality and the abnormality of the refrigerant cycle during use. This is useful if you want to be able to react quickly.

Claims (1)

실내온도를 검출하는 실내온도 검출부와;An indoor temperature detector detecting an indoor temperature; 실외온도를 검출하는 실외온도 검출부와;An outdoor temperature detector detecting an outdoor temperature; 실내열교환기온도를 검출하는 실내열교환기온도 검출부와;An indoor heat exchanger temperature detector detecting an indoor heat exchanger temperature; 입력전압의 변동을 검출하는 입력전압변동 검출부와;An input voltage change detector for detecting a change in the input voltage; 입력되는 제어신호에 따라 사용자에게 냉매상태의 이상유무를 표시하는 냉매상태 표시부와;A refrigerant state display unit displaying an abnormality of a refrigerant state to a user according to an input control signal; 실내온도, 실외온도, 입력전압변동에 따른 실내열교환기온도에 대한 데이터인 표준조건데이터를 공기조화기의 용량과, 과부하조건에 따라 저장하고 있으며, 운전이 시작되면 상기 실내온도 검출부, 실외온도 검출부, 실내열교환기온도 검출부, 입력전압변동 검출부에서 검출된 실내온도, 실외온도, 입력전압변동 및 실내열교환기온도인 현재조건데이터를 상기 표준조건데이터와 비교하여 냉매상태의 이상유무를 판단하여 상기 냉매상태 표시부를 통해 사용자에게 표시하는 제어부를 포함하여 구성되는 것을 특징으로 하는 공기조화기의 냉매사이클 이상감지장치.Standard condition data, which is data on indoor heat exchanger temperature according to indoor temperature, outdoor temperature, and input voltage change, is stored according to the capacity of air conditioner and overload condition.When operation starts, the indoor temperature detector and outdoor temperature detector And comparing the present condition data of the indoor temperature, the outdoor temperature, the input voltage variation, and the indoor heat exchanger temperature detected by the indoor heat exchanger temperature detector and the input voltage fluctuation detector with the standard condition data to determine whether there is an abnormal state of the refrigerant. Refrigerant cycle abnormality detection apparatus of the air conditioner, characterized in that it comprises a control unit for displaying to the user via the status display.
KR1019990053499A 1999-11-29 1999-11-29 malfunction detector of refrigerant cycle for air conditioner KR20010048700A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100749175B1 (en) * 2006-05-24 2007-08-14 한국에너지기술연구원 Method of classified rule-based fault detection and diagnosis in air-handling system and device thereof
KR100869959B1 (en) * 2002-09-03 2008-11-24 엘지전자 주식회사 Test control method for airconditioner
CN103375874A (en) * 2012-04-23 2013-10-30 珠海格力电器股份有限公司 Air conditioner and refrigerant circulation abnormity protection control method of air conditioner
CN113531981A (en) * 2021-07-20 2021-10-22 四川虹美智能科技有限公司 Refrigerator refrigeration abnormity detection method and device based on big data

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100869959B1 (en) * 2002-09-03 2008-11-24 엘지전자 주식회사 Test control method for airconditioner
KR100749175B1 (en) * 2006-05-24 2007-08-14 한국에너지기술연구원 Method of classified rule-based fault detection and diagnosis in air-handling system and device thereof
CN103375874A (en) * 2012-04-23 2013-10-30 珠海格力电器股份有限公司 Air conditioner and refrigerant circulation abnormity protection control method of air conditioner
CN103375874B (en) * 2012-04-23 2016-03-02 珠海格力电器股份有限公司 Air conditioner and refrigerant circulation abnormity protection control method of air conditioner
CN113531981A (en) * 2021-07-20 2021-10-22 四川虹美智能科技有限公司 Refrigerator refrigeration abnormity detection method and device based on big data
CN113531981B (en) * 2021-07-20 2022-08-02 四川虹美智能科技有限公司 Refrigerator refrigeration abnormity detection method and device based on big data

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