KR20000028312A - Method of diagnosing disorder of fan motor for refrigerator - Google Patents

Method of diagnosing disorder of fan motor for refrigerator Download PDF

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Publication number
KR20000028312A
KR20000028312A KR1019980046493A KR19980046493A KR20000028312A KR 20000028312 A KR20000028312 A KR 20000028312A KR 1019980046493 A KR1019980046493 A KR 1019980046493A KR 19980046493 A KR19980046493 A KR 19980046493A KR 20000028312 A KR20000028312 A KR 20000028312A
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South Korea
Prior art keywords
fan motor
refrigerator
current
fan
disorder
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KR1019980046493A
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Korean (ko)
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최병준
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전주범
대우전자 주식회사
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Priority to KR1019980046493A priority Critical patent/KR20000028312A/en
Publication of KR20000028312A publication Critical patent/KR20000028312A/en

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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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681Details thereof
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/36Visual displays

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

PURPOSE: A method is provided to repair a disabled fan motor by informing a user of its disorder early. CONSTITUTION: A disorder of a fan motor is diagnosed by the steps of: rotating a fan motor(10) if electric power is fed to the fan motor; feeding electric currents to a control unit(14) by converting the currents as well as detecting the currents through a sensing and converting unit(12) connected to a side of the fan motor; rotating the fan motor by outputting a control signal from the control unit to a changing unit(16) of voltage; checking if the electric currents exceed the normal area or are isolated to the fan motor per certain driving frequency; and displaying a disorder signal of the fan motor to a display unit(20).

Description

냉장고의 팬모터 고장 진단방법How to diagnose fan motor failure in refrigerator

본 발명은 냉장고에 설치된 팬모터의 고장상태를 판단하여 사용자에게 알려주도록 하는 냉장고의 팬모터 고장 진단방법에 관한 것이다.The present invention relates to a method for diagnosing a fan motor failure of a refrigerator for determining a failure state of a fan motor installed in a refrigerator and informing a user.

일반적으로 냉장고는 음식물의 저장기구로써 냉동싸이클, 즉 냉매를 압축, 응축, 팽창 및 증발의 과정을 연속적이고 반복적으로 이루면서 증발부에서 열교환이 이루어지면 냉기가 생성되는데, 이 냉기는 제어부의 제어에 따라 냉동실팬모터 및 냉장실팬모터의 구동에 따라 급속회전되는 냉동실팬 및 냉장실팬의 회전에 의해 냉장실과 냉동실로 공급되어 각 고내에서 열교환된후 다시 냉각기실로 귀환되어 재차 냉각되고, 다시 각 고내로 공급되는 순환을 반복하게 된다.In general, the refrigerator is a storage device for food, and when the heat exchange is performed in the evaporator while the refrigeration cycle, that is, the refrigerant is compressed, condensed, expanded, and evaporated continuously and repeatedly, the cold air is generated. It is supplied to the refrigerating compartment and the freezing compartment by the rotation of the freezer compartment fan and the refrigerating compartment fan that is rapidly rotated by the operation of the freezer compartment fan motor and the refrigerating compartment fan motor. The cycle will repeat.

이러한 냉동팬모터의 동작을 제어하는 제어회로는 대한민국 실용신안공보 제 89-3100호에 제안된 바, 도 1을 참조하면, 냉장고의 교류 입력전원(AC)의 일단은 연동스위치(SW1)의 일단과 공접하여 냉동팬모터(3)의 일단에 연결되고, AC전원의 다른 일단은 냉동실 온도조절기 스위치(SW3)를 통해 연동스위치(SW2)의 접점에 연결되어 있다.The control circuit for controlling the operation of the refrigeration fan motor is proposed in Korean Utility Model Publication No. 89-3100, referring to Figure 1, one end of the AC input power (AC) of the refrigerator is one end of the interlock switch (SW1) It is connected to one end of the freezing fan motor (3), the other end of the AC power source is connected to the contact of the interlock switch (SW2) through the freezer compartment temperature controller switch (SW3).

여기서 스위치(SW1)의 접점은 릴레이(4)의 입력단자(a)와 정류회로(1)의 한 입력단에 연결되고 스위치(SW3)와 연결된 스위치(SW2)의 일단은 상기 릴레이(4)의 다른 입력단자(b)에 연결된다.Here, the contact point of the switch SW1 is connected to the input terminal a of the relay 4 and one input terminal of the rectifier circuit 1, and one end of the switch SW2 connected to the switch SW3 is connected to the other of the relay 4. It is connected to the input terminal (b).

상기 릴레이(4)의 공통접점(c)은 냉동팬모터(3)의 다른 일단에 연결되고, 릴레이(4)의 접점(d)은 트라이악(T1)의 일단과 저항(R5)의 일단에 연결되며, 또 입력단자(b)와 접속되어 있는 릴레이 접점(e)은 캐패시티(C1)의 일단과 연결된 스위치(SW2) 및 릴레이(4)를 통한 전원선은 트라이악(T1)의 일단에 연결된다.The common contact c of the relay 4 is connected to the other end of the refrigeration fan motor 3, and the contact point d of the relay 4 is connected to one end of the triac T1 and one end of the resistor R5. The relay contact e connected to the input terminal b and the power supply line through the switch SW2 and the relay 4 connected to one end of the capacitance C1 are connected to one end of the triac T1. Connected.

상기 정류회로(1)의 직류전원 출력단자(+.-)는 온도검출회로(2)의 출력단자(j)는 저항(R1)을 통해 저항(R2)의 일단과 공접하여 트랜지스터(Q1)의 베이스에 연결되고, 온도검출회로(2)의 입력단자(K)는 냉장실에 설치된 온도감지용 더미스터(TH)에 연결된다.The DC power output terminal (+ .-) of the rectifier circuit 1 has the output terminal j of the temperature detection circuit 2 in contact with one end of the resistor R2 through the resistor R1 and thus the transistor Q1. It is connected to the base, the input terminal K of the temperature detection circuit (2) is connected to the temperature sensing dummy (TH) installed in the refrigerating chamber.

또한, 상기 정류회로(1)의 직류 출력전원(+)은 저항(R4)을 통해 상기 트라이악(T1)의 게이트와 연결되는 동시에 트랜지스터(Q1)의 콜렉터 저항(R3)에 연결된다.In addition, the DC output power (+) of the rectifier circuit 1 is connected to the gate of the triac T1 through a resistor R4 and to the collector resistor R3 of the transistor Q1.

상기 냉동팬모터 제어회로의 동작을 설명하면 다음과 같다.Referring to the operation of the refrigeration fan motor control circuit is as follows.

도 1에 도시된 연동스위치(SW1),(SW2)는 오프(OFF) 상태를 표시한 것이며, 이 연동스위치가 오프되면 릴레이(4) 측에 AC전원이 걸리지 않으므로 릴레이(4)의 단자(b)(c)가 접속되어 냉동실의 공지의 온도조절기 스위치(SW3)를 통하여 팬모터 구동회로가 형성되므로 냉동팬모터(3)가 구동된다.The interlock switches SW1 and SW2 shown in FIG. 1 indicate an OFF state. When the interlock switch is turned off, AC power is not applied to the relay 4 side. (c) is connected to the fan motor driving circuit is formed through the known temperature controller switch (SW3) of the freezer compartment, the refrigeration fan motor (3) is driven.

반면, 연동스위치(SW1),(SW2)를 온(ON)시키면, 릴레이(4)에 AC전원이 걸리므로 릴레이(4)가 여자되어 릴레이(4)의 단자(c)(d)가 접속되고, 스위치 SW3(냉도실 온도조절기)의 온/오프에 관계없이 냉동팬모터(3)는 냉장실 온도에 의해서만 제어된다.On the other hand, when the interlocking switches SW1 and SW2 are turned on, the relay 4 is energized so that the relay 4 is excited to connect the terminals c and d of the relay 4 to each other. Regardless of whether the switch SW3 (cooling chamber temperature controller) is turned on or off, the refrigeration fan motor 3 is controlled only by the refrigerating chamber temperature.

즉, 스위치(SW1),(SW2)를 온시키면 릴레이(4)의 단자(a)(e)를 통하여 정류회로(1)에 교류전원 AC이 인가되고, 이 정류회로(1)의 직류출력전압이 온도검출회로(2)에 공급되면 온도검출회로(2)의 입력단자(K)에 연결되고 냉장실내에 설치된 더미스터(TH)가 냉장실의 온도를 검출하여 온도검출회로(2)의 출력단자(j)에 하이 또는 로우신호를 발생시킨다.That is, when the switches SW1 and SW2 are turned on, AC power AC is applied to the rectifier circuit 1 through the terminals a and e of the relay 4, and the DC output voltage of the rectifier circuit 1 is applied. When supplied to the temperature detecting circuit 2, the dummy terminal TH connected to the input terminal K of the temperature detecting circuit 2 and installed in the refrigerating chamber detects the temperature of the refrigerating chamber and outputs the output terminal of the temperature detecting circuit 2 ( j) generates a high or low signal.

온도검출회로(2)의 출력신호(j)가 하이 일때는 저항(R1)을 통하여 트랜지스터(Q1)의 베이스에 바이어스 전원이 인가되어 트랜지스터(Q1)이 턴온되고, 온도검출회로(2)의 출력신호가 로우 일때는 저항(R2)을 통해 트랜지스터(Q1)의 베이스에 로우 전위가 인가되어 트랜지스터(Q1)가 턴 오프된다.When the output signal j of the temperature detection circuit 2 is high, a bias power is applied to the base of the transistor Q1 through the resistor R1 to turn on the transistor Q1, and the output of the temperature detection circuit 2 is output. When the signal is low, a low potential is applied to the base of the transistor Q1 through the resistor R2 to turn off the transistor Q1.

트랜지스터(Q1)가 턴온되면 콜렉터 출력단이 저항(R3)에 로우전위가 걸리고 트라이악(T1)의 게이트에 로우 전위가 인가되어 트라이악(T1)이 턴온되고, 트랜지스터(Q1)가 턴 오프되면 콜렉터 출력단이 저항(R4)에 하이전위가 인가되어 트라이악(T1)의 게이트에 하이 전위가 인가되므로 트라이악(T1)이 턴 오프 된다.When the transistor Q1 is turned on, the collector output terminal has a low potential on the resistor R3 and a low potential is applied to the gate of the triac T1 to turn on the triac T1, and when the transistor Q1 is turned off, the collector is turned off. Since a high potential is applied to the resistor R4 to the output terminal, a high potential is applied to the gate of the triac T1, so that the triac T1 is turned off.

여기서, 트라이악(T1)이 턴온되면 냉동팬모터(3)가 구동되고 트라이악(T1)이 턴 오프되면 냉동팬모터(3)는 정지된다.Here, when the triac T1 is turned on, the refrigeration fan motor 3 is driven, and when the triac T1 is turned off, the refrigeration fan motor 3 is stopped.

이와 같이, 냉동실온도 스위치(SW3)를 통해 냉동팬모터(3)를 구동시킬 수 있고, 연동스위치(SW1),(SW2)를 온시키면 냉장실의 온도에 따라 트라이악(T1)을 제어함으로써 냉동팬모터(3)의 구동을 제어한다.In this way, the freezer fan motor 3 can be driven through the freezer compartment temperature switch SW3. When the interlock switches SW1 and SW2 are turned on, the freezer fan is controlled by controlling the triac T1 according to the temperature of the refrigerator compartment. The drive of the motor 3 is controlled.

이와같이 구성된 종래의 팬모터 구동회로에서는 팬이 불량이 발생되어 정상동작을 하지 않더라도 이를 사용자에게 알려주는 적절한 수단이 구비되어 있지 않은 바, 장기 사용, 주변공기의 오염이나 이물질의 흡입, 부품자체의 불량등에 의해 상기 팬에 불량이 발생하여 정상적인 동작을 하지 않게 되면 냉장고에서 약냉이 발생하는 문제점이 있었다.In the conventional fan motor driving circuit configured as described above, even if the fan is defective and does not operate normally, there is no proper means for informing the user of the fan. Long-term use, contamination of surrounding air or intake of foreign substances, and defects of the parts themselves are caused. There is a problem in that the cooling occurs in the refrigerator when the fan does not perform a normal operation due to the poor.

이로인해, 냉장고의 냉동/냉장 효율이 저하되어 냉동/냉장실에 보관된 음식물의 부패 및 변질등의 원인이 되는 미생물의 증식으로 음식물의 선도가 떨어지는 문제점이 있었다.Due to this, there is a problem that the freshness of the food is lowered due to the proliferation of microorganisms that cause decay and deterioration of the food stored in the freezer / refrigeration chamber due to a decrease in freezing / refrigeration efficiency of the refrigerator.

또한, 냉장고에는 다수개의 팬모터가 사용되는데, 이중 불량으로 감지되는 팬모터를 신속정확하게 사용자에게 알려주지 못하여 사용자의 불만과 제품의 신뢰성이 저하되는 문제점이 있었다.In addition, a plurality of fan motors are used in the refrigerator, which fails to inform the user of the fan motor which is detected as a double defect quickly and accurately, and there is a problem in that the user's dissatisfaction and product reliability are deteriorated.

본 발명은 상기한 종래기술의 제반 문제점을 해결하기 위하여 발명한 것으로서, 본 발명의 목적은 냉장고에 설치된 팬모터의 동작불량시 이상이 있는 팬모터와 그 이상 상태를 조기에 사용자에게 알려주어 고장팬모터를 보수할 수 있도록 한 냉장고의 팬모터 고장 진단방법을 제공함에 있다.The present invention has been invented to solve the above-mentioned problems of the prior art, the object of the present invention is to inform the user of a faulty fan motor and the abnormal state when the malfunction of the fan motor installed in the refrigerator early to trouble fans The present invention provides a method for diagnosing a fan motor failure of a refrigerator to repair the motor.

본 발명에 따른 냉장고의 팬모터 고장 진단방법의 특징은, 냉장고가 통상운전을 실시하는 동안 제어부는 팬모터의 고장 체크 주기인지 여부를 판단하는 단계, 상기 판단결과 팬모터의 고장 체크 주기이면 상기 팬모터에 인가되는 전류가 정상전류 인지를 판단하는 단계, 상기 팬모터에 인가되는 전류가 정상전류이면 냉장고를 통상운전모드로 동작시키고 상기 팬모터에 인가되는 전류가 이상전류이면 제어부는 제어조건에 따라 팬모터에 인가되는 전류가 구속상태인지 단락 상태인지 여부를 감지한후 팬모터에러 신호를 디스플레이부에 표시하는 단계를 포함하여 이루어진다.A characteristic of the method for diagnosing a failure of a fan motor of a refrigerator according to the present invention is that, while the refrigerator is performing normal operation, the control unit determines whether the fan motor has a failure check cycle, and if the determination result shows that the fan motor has a failure check cycle, the fan Determining whether the current applied to the motor is a normal current. If the current applied to the fan motor is a normal current, the refrigerator is operated in a normal operation mode, and if the current applied to the fan motor is an abnormal current, the controller according to the control condition. And detecting whether the current applied to the fan motor is in a confined state or a short state and displaying a fan motor error signal on the display unit.

도 1은 일반적인 냉장고의 팬모터 구동회로도,1 is a fan motor driving circuit diagram of a typical refrigerator;

도 2는 본 발명에 따른 냉장고의 팬모터 고장 진단방법을 구현하기 개략적 구성도,2 is a schematic configuration diagram for implementing a method for diagnosing a fan motor failure of a refrigerator according to the present invention;

도 3은 본 발명에 따른 냉장고의 팬모터 고장 진단방법을 나타낸 흐름도이다.3 is a flowchart illustrating a method for diagnosing a fan motor failure of a refrigerator according to the present invention.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

10 : 팬모터, 12 : 전류감지 및 변환부,10: fan motor, 12: current sensing and conversion unit,

14 : 제어부, 16 : 전압가변부,14: control unit, 16: voltage variable unit,

18 : 디스플레이구동부, 20 : 디스플레이부.18: display driver, 20: display unit.

이하, 본 발명에 따른 냉장고의 팬모터 고장 진단방법의 바람직한 실시예를 첨부한 도면을 참조하여 설명한다.Hereinafter, a preferred embodiment of a method for diagnosing a fan motor failure of a refrigerator according to the present invention will be described with reference to the accompanying drawings.

도 2는 본 발명에 따른 냉장고의 팬모터 고장 진단방법을 구현하기 위한 개략적 구성도로서, 냉장고의 구동시에 가변 인가전압에 의해 구동되는 팬모터(10), 상기 팬모터(10)의 일측에 연결되고 상기 팬모터(10)가 구동될 때 전류를 감지함과 동시에 전류값를 변환시키는 전류감지 및 변환부(12), 상기 전류감지 및 변환부(12)에서 출력되는 신호를 인가받아 전압가변부(16) 및 디스플레이구동부(18)로 출력하는 제어부(14), 상기 디스플레이구동부(18)의 구동신호에 따라 팬모터(10)의 고장상태를 사용자에게 디스플레이 해주는 디스플레이부(20)로 구성된다.2 is a schematic configuration diagram for implementing a method for diagnosing a failure of a fan motor of a refrigerator according to the present invention, which is connected to one side of a fan motor 10 and a fan motor 10 driven by a variable applied voltage when the refrigerator is driven. When the fan motor 10 is driven, a current sensing and converting unit 12 for converting a current value and converting a current value is applied, and a signal output from the current sensing and converting unit 12 is applied. 16) and a control unit 14 outputting to the display driver 18, and a display unit 20 for displaying a failure state of the fan motor 10 to the user according to the drive signal of the display driver 18.

상기 팬모터(10)는 BLDC모터 이다.The fan motor 10 is a BLDC motor.

이와 같이 구성된 본 발명에 따른 냉장고의 동작을 설명하면 다음과 같다.Referring to the operation of the refrigerator according to the present invention configured as described above are as follows.

먼저, 전원공급부(미도시)에서는 제어부(14)로 전원을 공급하게 되는 바, 상기 전원은 제어부(14)의 통제하에 각부로 공급된다.First, the power supply unit (not shown) supplies power to the control unit 14, and the power is supplied to each unit under the control of the control unit 14.

상기 전원이 팬모터(10)로 인가되면 상기 팬모터(10)는 인가전압에 따라 회전한다.When the power is applied to the fan motor 10, the fan motor 10 rotates according to the applied voltage.

이때, 상기 팬모터(10)의 일측에 연결된 전류감지 및 변환부(12)가 전류를 감지함과 동시에 전류값을 변환시켜 상기 제어부(14)로 인가시킨다.At this time, the current sensing and conversion unit 12 connected to one side of the fan motor 10 senses the current and simultaneously converts the current value to the control unit 14.

또한, 상기 제어부(14)는 제어신호를 전압가변부(16)로 출력하여 팬모터(10)를 회전시킨다.In addition, the controller 14 outputs a control signal to the voltage variable unit 16 to rotate the fan motor 10.

한편, 상기 제어부(14)는 상기 팬모터(10)가 구동되는 일정 주기마다 상기 팬모터(10)에 흐르는 전류가 정상범위에 벗어나거나 상기 팬모터(10)에 전류가 흐르지 않는 단선 일 경우을 체크하고 디스플레이부(20)로 상기 팬모터(10)에 대한 고장 신호를 사용자에게 디스플레이 해준다.On the other hand, the control unit 14 checks the case in which the current flowing in the fan motor 10 is out of the normal range or the disconnection of the current does not flow in the fan motor 10 at a predetermined cycle of the fan motor 10 is driven. And the display unit 20 displays a failure signal for the fan motor 10 to the user.

이와 같이 구성된 본 발명에 따른 냉장고의 팬모터 고장 진단방법을 도 3을 참조하여 설명하면 다음과 같다.The fan motor failure diagnosis method of the refrigerator according to the present invention configured as described above will be described with reference to FIG. 3.

먼저, 냉장고가 통상운전을 실시하는 동안 제어부(14)는 팬모터의 고장 체크 주기인가를 판단하고(S101) 상기의 판단결과 팬모터(10)의 고장 체크 주기이면 상기 팬모터(10)에 인가되는 전류가 정상전류 인지 아니면 이상전류 인지 여부를 판단한다(S102).First, while the refrigerator performs normal operation, the control unit 14 determines whether the fan motor has a failure checking cycle (S101), and if the failure result of the fan motor 10 is checked, the control unit 14 applies the fan motor 10 to the fan motor 10. It is determined whether the current to be normal or abnormal current (S102).

상기의 판단결과 팬모터(10)에 인가되는 전류가 이상 전류이면 상기 팬모터(10)에 전류가 흐르지 않는 제1모드로 판단하고(S103) 상기 제어부(14)가 디스플레이부(20)에 팬모터에러 신호를 표시한다(S104).As a result of the determination, if the current applied to the fan motor 10 is an abnormal current, it is determined as the first mode in which no current flows in the fan motor 10 (S103). The motor error signal is displayed (S104).

또한, 상기의 판단결과 팬모터(10)에 인가되는 전류가 이상 전류이면 상기 팬모터(10)에 과전류가 흐르는 제2모드로 판단하고(S105). 상기 제어부(14)가 디스플레이부(20)에 팬모터에러 신호를 표시한다(S106).In addition, if the current applied to the fan motor 10 is an abnormal current as a result of the determination, it is determined as a second mode in which an overcurrent flows in the fan motor 10 (S105). The control unit 14 displays a fan motor error signal on the display unit 20 (S106).

그리고, 상기의 판단결과 팬모터(10)에 인가되는 전류가 이상 전류이면 상기 팬모터(10)에 미소전류가 흐르는 제N모드로 판단하고(S107N) 상기 제어부(14)가 디스플레이부(20)에 팬모터에러 신호를 표시한다(S108N).When the current applied to the fan motor 10 is an abnormal current as a result of the determination, it is determined that the fan motor 10 is the Nth mode in which a small current flows (S107N). The controller 14 displays the display unit 20. The fan motor error signal is displayed (S108N).

본 발명에 따른 냉장고의 팬모터 고장 진단방법은 팬모터의 동작 불량시 신속하게 사용자에게 알려주어 보수할 수 있게함으로써 냉장고의 약냉을 사전에 방지해주는 효과가 있다.The method for diagnosing a fan motor failure of the refrigerator according to the present invention has an effect of preventing weak cooling of the refrigerator in advance by informing a user promptly when the fan motor is in poor operation.

Claims (1)

냉장고가 통상운전을 실시하는 동안 제어부는 팬모터의 고장 체크 주기인지 여부를 판단하는 단계;The control unit determines whether or not the fan motor failure check cycle while the refrigerator performs normal operation; 상기 판단결과 팬모터의 고장 체크 주기이면 상기 팬모터에 인가되는 전류가 정상전류 인지를 판단하는 단계;Determining whether the current applied to the fan motor is a normal current when the fan motor has a fault check period; 상기 팬모터에 인가되는 전류가 정상전류이면 냉장고를 통상운전모드로 동작시키고 상기 팬모터에 인가되는 전류가 이상전류이면 제어부는 제어조건에 따라 팬모터에 인가되는 전류가 구속상태인지 단락 상태인지 여부를 감지한후 팬모터에러 신호를 디스플레이부에 표시하는 단계를 포함하여 이루어짐을 특징으로 하는 냉장고의 팬모터 고장 진단방법.If the current applied to the fan motor is a normal current, the refrigerator operates in a normal operation mode. If the current applied to the fan motor is an abnormal current, the controller determines whether the current applied to the fan motor is in a confined state or a short circuit state according to a control condition. And detecting the fan motor error signal on the display unit after detecting the fan motor error.
KR1019980046493A 1998-10-30 1998-10-30 Method of diagnosing disorder of fan motor for refrigerator KR20000028312A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100384620B1 (en) * 2000-02-11 2003-05-22 미래산업 주식회사 apparatus for sensing error of fan motor in semiconductor device detecting system
KR100577418B1 (en) * 1999-11-09 2006-05-08 삼성전자주식회사 Refrigerator and Control Method Thereof
KR100926759B1 (en) * 2007-02-27 2009-11-16 삼성전자주식회사 Motor connection detection method
KR101055726B1 (en) * 2004-06-01 2011-08-11 엘지전자 주식회사 Drainage pump structure of drum washing machine and method of detecting impeller motor for drainage pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100577418B1 (en) * 1999-11-09 2006-05-08 삼성전자주식회사 Refrigerator and Control Method Thereof
KR100384620B1 (en) * 2000-02-11 2003-05-22 미래산업 주식회사 apparatus for sensing error of fan motor in semiconductor device detecting system
KR101055726B1 (en) * 2004-06-01 2011-08-11 엘지전자 주식회사 Drainage pump structure of drum washing machine and method of detecting impeller motor for drainage pump
KR100926759B1 (en) * 2007-02-27 2009-11-16 삼성전자주식회사 Motor connection detection method

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