KR20060002567A - Refrigerator - Google Patents

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Publication number
KR20060002567A
KR20060002567A KR1020040051661A KR20040051661A KR20060002567A KR 20060002567 A KR20060002567 A KR 20060002567A KR 1020040051661 A KR1020040051661 A KR 1020040051661A KR 20040051661 A KR20040051661 A KR 20040051661A KR 20060002567 A KR20060002567 A KR 20060002567A
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KR
South Korea
Prior art keywords
heater
resistor
damper
control unit
refrigerator
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KR1020040051661A
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Korean (ko)
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KR100592950B1 (en
Inventor
박민
김종기
장재혁
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삼성전자주식회사
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Priority to KR1020040051661A priority Critical patent/KR100592950B1/en
Publication of KR20060002567A publication Critical patent/KR20060002567A/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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/006—Defroster control with electronic control circuits
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/02—Refrigerators including a heater

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

본 발명에 따른 냉장고는 댐퍼 결빙 방지용 히터의 고장 여부를 쉽고 정확하게 확인할 수 있도록 하는데 그 목적이 있다. 이와 같은 목적의 본 발명에 따른 냉장고는 냉동실과 냉장실 사이의 냉기 통로를 개폐하는 댐퍼와, 일단에 전원이 공급되어 가열됨으로써 댐퍼의 결빙을 방지하는 히터와, 히터의 타단과 접지 사이에 연결되는 저항과, 저항 양단의 전압을 검출하여 히터의 단선 여부를 판별하는 제어부를 포함한다.The refrigerator according to the present invention has an object to be able to easily and accurately determine whether the heater for preventing the damper freezing. The refrigerator according to the present invention for this purpose has a damper for opening and closing the cold air passage between the freezer compartment and the refrigerating compartment, a heater to prevent freezing of the damper by being supplied with power at one end, and a resistance connected between the other end of the heater and the ground And a controller for detecting whether the heater is disconnected by detecting a voltage across the resistor.

Description

냉장고{REFRIGERATOR}Refrigerator {REFRIGERATOR}

도 1은 본 발명의 실시예에 따른 냉장고의 회로 구성을 나타낸 도면.1 is a view showing a circuit configuration of a refrigerator according to an embodiment of the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

100 : 댐퍼100: damper

102 : 스테핑 모터102: stepping motor

104 : 히터104: heater

150 : 전장실150: battlefield

152 : 제어부152: control unit

154 : 스테핑 모터 구동부154 stepping motor drive unit

172 : 전원 공급부172: power supply

본 발명은 냉장고에 관한 것으로, 냉기 공급 통로를 개폐하는 댐퍼를 구비하는 냉장고에 관한 것이다.The present invention relates to a refrigerator, and to a refrigerator having a damper for opening and closing a cold air supply passage.

일반적으로 냉장고의 본체는 중간 격벽에 의해 구획되는 냉동실과 냉장실이 마련되고, 냉동실과 냉장실 각각에는 본체에 힌지 결합되어 냉동실과 냉장실을 개폐 하는 도어가 설치된다. 냉동실의 내부 벽면에는 냉기를 생성하여 냉동실 내부에 공급하기 위한 증발기와 팬이 구비된다.In general, the main body of the refrigerator is provided with a freezer compartment and a refrigerating compartment partitioned by an intermediate partition, and each of the freezer compartment and the refrigerating compartment is hinged to the main body is provided with a door for opening and closing the freezer compartment and the refrigerating compartment. An inner wall of the freezer compartment is provided with an evaporator and a fan for generating cold air and supplying it into the freezer compartment.

또한 냉장실의 내부 벽면에도 냉기를 생성하여 냉장실 내부에 공급하기 위한 또 다른 증발기와 팬이 구비된다. 또 다른 구조의 냉장고로는 냉장실에 팬이 아닌 댐퍼를 설치하여 냉장실의 냉기를 조절하는 구조의 냉장고를 들 수 있다.There is also another evaporator and fan on the inner wall of the refrigerating compartment for generating cold air and supplying it into the refrigerating compartment. Another structure of the refrigerator may include a refrigerator having a damper instead of a fan in the refrigerator compartment to control cold air in the refrigerator compartment.

즉 냉동실의 냉기를 댐퍼를 통해 냉장실로 공급하여 냉장실의 냉각이 이루어지도록 하는데, 이 때 댐퍼를 통해 냉기의 양을 조절하여 냉장실의 온도를 제어한다.In other words, the cold air of the freezer compartment is supplied to the refrigerating chamber through a damper to cool the refrigerating compartment, and the temperature of the refrigerating chamber is controlled by adjusting the amount of cold air through the damper.

냉기가 댐퍼를 통해 공급되는 구조이기 때문에 냉각 운전이 진행될수록 댐퍼가 결빙되어 정상적으로 동작하지 않는 경우가 발생할 수 있어 이에 대한 대책이 요구된다.Since the cold air is supplied through the damper, as the cooling operation proceeds, the damper may freeze and may not operate normally. Therefore, countermeasures are required.

본 발명에 따른 냉장고는 댐퍼 결빙 방지용 히터의 고장 여부를 쉽고 정확하게 확인할 수 있도록 하는데 그 목적이 있다.The refrigerator according to the present invention has an object to be able to easily and accurately determine whether the heater for preventing the damper freezing.

이와 같은 목적의 본 발명에 따른 냉장고는 냉동실과 냉장실 사이의 냉기 통로를 개폐하는 댐퍼와, 일단에 전원이 공급되어 가열됨으로써 댐퍼의 결빙을 방지하는 히터와, 히터의 타단과 접지 사이에 연결되는 저항과, 저항 양단의 전압을 검출하여 히터의 단선 여부를 판별하는 제어부를 포함한다.The refrigerator according to the present invention for this purpose has a damper for opening and closing the cold air passage between the freezer compartment and the refrigerating compartment, a heater to prevent freezing of the damper by being supplied with power at one end, and a resistance connected between the other end of the heater and the ground And a controller for detecting whether the heater is disconnected by detecting a voltage across the resistor.

이와 같이 이루어지는 본 발명의 바람직한 실시예를 도 1을 참조하여 설명하면 다음과 같다. 도 1은 도 1은 본 발명의 실시예에 따른 냉장고의 회로 구성을 나타 낸 도면이다. 도 1에 나타낸 바와 같이, 댐퍼(100)에는 댐퍼(100)를 구동하기 위한 스테핑 모터(102)와, 댐퍼(100)를 가열하여 결빙을 방지하기 위한 히터(104)가 마련된다.The preferred embodiment of the present invention thus made will be described with reference to FIG. 1 as follows. 1 is a view showing a circuit configuration of a refrigerator according to an embodiment of the present invention. As shown in FIG. 1, the damper 100 is provided with a stepping motor 102 for driving the damper 100 and a heater 104 for heating the damper 100 to prevent freezing.

스테핑 모터(102)는 제어부(15)와 스테핑 모터 구동부(154)에 의해 제어 및 구동되어 댐퍼(100)의 개폐 정도를 조절한다. 히터(104)는 그 일단에 전원 공급부(172)가 연결되어 전원이 공급되고, 그 타단이 저항(170)을 통해 접지된다. 따라서 전원 공급부(172)와 히터(104), 저항(170)이 정상적인 전기적 연결 상태를 유지하는 경우에는 히터(104)의 저항 값과 저항(170)의 저항 값에 의해 결정되는 소정의 전압이 저항(170) 양단에 나타날 것이고, 반대로 히터(104)의 전기적 연결 관계가 정상적이지 않을 때 즉 단선 등의 상황이 발생하면 저항(170) 양단의 전압은 0V가 될 것이다.The stepping motor 102 is controlled and driven by the controller 15 and the stepping motor driver 154 to adjust the degree of opening and closing of the damper 100. The heater 104 is connected to a power supply unit 172 at one end thereof to supply power, and the other end of the heater 104 is grounded through the resistor 170. Accordingly, when the power supply unit 172, the heater 104, and the resistor 170 maintain a normal electrical connection state, a predetermined voltage determined by the resistance value of the heater 104 and the resistance value of the resistor 170 may be a resistance. The voltage across the resistor 170 will be 0V when the electrical connection relationship of the heater 104 is not normal, that is, when disconnection occurs.

제어부(152)는 이와 같은 저항(170) 양단의 전압 변화를 통해 히터(104)의 단선 여부를 확인할 수 있다. 즉 저항(170)의 양단에 히터(104)의 저항 값과 저항(170)의 저항 값에 의해 결정되는 소정의 전압이 나타나면 히터(104)의 전기적 연결 관계가 정상적으로 이루어진 상태로 판정하고, 반대로 저항(170) 양단의 전압이 0V가 되면 히터(104)의 전기적 연결 관계가 정상적이지 않은 것으로 판정한다.The controller 152 may check whether the heater 104 is disconnected by changing the voltage across the resistor 170. That is, when a predetermined voltage determined by the resistance value of the heater 104 and the resistance value of the resistor 170 appears at both ends of the resistor 170, it is determined that the electrical connection relationship of the heater 104 is normally established, and the resistance is reversed. If the voltage at both ends reaches 0V, it is determined that the electrical connection relationship of the heater 104 is not normal.

저항(168)과 제너 다이오드(166), 캐패시터(164)로 구성되는 회로는 제어부(152)에 과전압이 인가되지 않도록 하기 위한 보호 회로이고, 저항(158, 160, 162)으로 구성된 회로 역시 제어부(152)의 입력 보호 회로이다.The circuit composed of the resistor 168, the zener diode 166, and the capacitor 164 is a protection circuit for preventing an overvoltage from being applied to the controller 152. The circuit composed of the resistors 158, 160, and 162 is also a controller ( 152 is an input protection circuit.

히터(104)와 저항(170)의 접점과 제어부(152) 사이에 연결되는 인버터(156)는 냉장고의 히터 검사 모드일 때와 일반적인 냉각 운전 모드일 때를 구분하기 위한 것이다. 즉 히터 검사 모드일 때 제어부(152)는 인버터(156)의 입력단을 전기적으로 개방하여 히터(104)와 저항(170) 사이의 접점에 아무런 전기적 영향을 미치지 않도록 함으로써, 저항(170)의 양단에 히터(104)의 저항 값과 저항(170)의 저항 값에 의해 결정되는 소정의 전압이 나타나도록 한다. 반대로 일반적인 냉각 운전 모드일 때 제어부(152)는 인버터(156)의 입력단으로 하이 레벨의 신호를 출력하여 인버터(156)에서 로우 레벨(접지 레벨)의 신호가 출력되도록 함으로써, 히터(104)와 저항(170) 사이의 접점이 접지 레벨이 되어 저항(170)의 영양을 받지 않고 정상적으로 히터(104)를 구동할 수 있다.The inverter 156 connected between the contact point of the heater 104 and the resistor 170 and the controller 152 is for distinguishing between the heater inspection mode of the refrigerator and the normal cooling operation mode. That is, in the heater test mode, the control unit 152 electrically opens the input terminal of the inverter 156 so as not to have any electrical effect on the contact between the heater 104 and the resistor 170, thereby providing both ends of the resistor 170. The predetermined voltage determined by the resistance value of the heater 104 and the resistance value of the resistor 170 is displayed. On the contrary, in the normal cooling operation mode, the controller 152 outputs a high level signal to the input terminal of the inverter 156 so that the low level (ground level) signal is output from the inverter 156, thereby providing a resistance to the heater 104. The contacts between the 170 may be at the ground level to normally drive the heater 104 without receiving the nutrition of the resistor 170.

이와 같이 본 발명에 따른 냉장고는 댐퍼 결빙 방지용 히터의 고장 여부를 쉽고 정확하게 확인할 수 있도록 한다.As described above, the refrigerator according to the present invention enables easy and accurate confirmation of a failure of the damper anti-icing heater.

Claims (3)

냉동실과 냉장실 사이의 냉기 통로를 개폐하는 댐퍼와;A damper for opening and closing a cold air passage between the freezer compartment and the refrigerating compartment; 일단에 전원이 공급되어 가열됨으로써 상기 댐퍼의 결빙을 방지하는 히터와;A heater to prevent freezing of the damper by supplying power to one end of the heating unit; 상기 히터의 타단과 접지 사이에 연결되는 저항과;A resistor connected between the other end of the heater and ground; 상기 저항 양단의 전압을 검출하여 상기 히터의 단선 여부를 판별하는 제어부를 포함하는 냉장고.And a controller configured to detect the voltage across the resistor and determine whether the heater is disconnected. 제 1 항에 있어서,The method of claim 1, 입력단이 상기 제어부에 연결되며, 출력단이 상기 히터와 상기 저항의 접점에 연결되는 인버터를 더 포함하고; 상기 제어부는,An input terminal connected to the control unit and an output terminal connected to a contact point of the heater and the resistor; The control unit, 상기 히터 검사 모드일 때 상기 인버터의 입력단과 상기 제어부 사이를 전기적으로 개방하고;Electrically open between the input terminal of the inverter and the control unit in the heater test mode; 상기 냉장고의 냉각 운전 모드일 때 상기 인버터의 입력단에 하이 레벨의 전압을 인가하여 상기 히터와 상기 저항 사이의 접점을 강제로0전위로 만드는 냉장고.And a high level voltage is applied to an input terminal of the inverter in the cooling operation mode of the refrigerator to force the contact between the heater and the resistor to zero potential. 제 1 항에 있어서,The method of claim 1, 상기 히터와 상기 저항 사이의 접점과 상기 제어부가 전기적으로 연결되고, 그 사이에 상기 제어부에 과전압이 인가되지 않도록 과전압 보호 회로가 마련되는 냉장고.And a contact point between the heater and the resistor and the control unit are electrically connected to each other, and an overvoltage protection circuit is provided to prevent an overvoltage from being applied to the control unit.
KR1020040051661A 2004-07-02 2004-07-02 Refrigerator KR100592950B1 (en)

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Application Number Priority Date Filing Date Title
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KR1020040051661A KR100592950B1 (en) 2004-07-02 2004-07-02 Refrigerator

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KR20060002567A true KR20060002567A (en) 2006-01-09
KR100592950B1 KR100592950B1 (en) 2006-06-26

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