KR100980577B1 - Driving control method for refrigerator - Google Patents

Driving control method for refrigerator Download PDF

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Publication number
KR100980577B1
KR100980577B1 KR1020030077618A KR20030077618A KR100980577B1 KR 100980577 B1 KR100980577 B1 KR 100980577B1 KR 1020030077618 A KR1020030077618 A KR 1020030077618A KR 20030077618 A KR20030077618 A KR 20030077618A KR 100980577 B1 KR100980577 B1 KR 100980577B1
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South Korea
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temperature
miracle
zone
compressor
refrigerating compartment
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KR1020030077618A
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Korean (ko)
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KR20050042957A (en
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손재호
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엘지전자 주식회사
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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
    • 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
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/121—Sensors measuring the inside temperature of particular compartments

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

본 발명은 냉장고의 운전제어방법에 관한 것으로, 냉장실과 미라클존의 냉기 공급 주기를 연동 제어하여 압축기의 온/오프 횟수를 적게함으로써 압축기 손상을 방지함과 아울러 에너지 효율을 향상시키도록 한 것이다. 이를 위하여 본 발명은 냉장실과 미라클존을 구비한 직냉식 냉장고에 있어서, 냉장실의 온도를 검출하여 그 검출온도가 제1 기준온도 보다 크면 압축기를 동작시키고, 미라클존 밸브는 클로우즈시킴과 동시에 냉장실 밸브를 오픈하여 냉기를 공급하는 과정과; 상기 냉장실의 온도를 검출하여 그 검출온도가 제1 기준온도보다 작아지면 상기 냉장실밸브를 클로우즈시킴과 동시에, 미라클존 밸브를 오픈하는 과정과; 상기 미라클존의 온도를 검출하여 그 검출온도를 제2 기준온도와 비교하는 과정과; 상기 비교결과, 미라클존의 온도가 제2 기준온도 보다 작으면 압축기를 오프시키고, 상기 미라클존의 온도가 제2 기준온도 보다 크면 압축기를 계속하여 동작시키는 과정을 반복적으로 수행한다.The present invention relates to an operation control method of a refrigerator, and to reduce the number of on / off of the compressor by interlocking the cold air supply cycle of the refrigerating chamber and the Miracle Zone to prevent damage to the compressor and to improve energy efficiency. To this end, the present invention is a direct-cooling refrigerator having a refrigerating compartment and a miracle zone, and detects the temperature of the refrigerating compartment and operates the compressor when the detected temperature is greater than the first reference temperature, the Miracle zone valve closes and opens the refrigerating compartment valve. Supplying cold air; Detecting the temperature of the refrigerating compartment and closing the refrigerating compartment valve when the detected temperature is lower than a first reference temperature and opening the Miracle Zone valve; Detecting the temperature of the Miracle Zone and comparing the detected temperature with a second reference temperature; As a result of the comparison, when the temperature of the Miracle Zone is lower than the second reference temperature, the compressor is turned off. When the temperature of the Miracle Zone is higher than the second reference temperature, the compressor is repeatedly operated.

Description

냉장고의 운전제어방법{DRIVING CONTROL METHOD FOR REFRIGERATOR}How to control the operation of the refrigerator {DRIVING CONTROL METHOD FOR REFRIGERATOR}

도 1은 종래 직냉식 소형 냉동냉장고의 사이클도.1 is a cycle diagram of a conventional direct cooling small freezer.

도 2는 종래 냉장고의 운전제어방법을 적용한 압축기 및 밸브의 동작을 보인 파형도.Figure 2 is a waveform diagram showing the operation of the compressor and the valve to which the operation control method of the conventional refrigerator.

도 3은 본 발명 냉장고의 운전제어방법에 대한 동작흐름도.Figure 3 is a flow chart for the operation control method of the refrigerator of the present invention.

도 4는 본 발명 냉장고의 운전제어방법을 적용한 압축기 및 밸브의 동작을 보인 파형도.Figure 4 is a waveform diagram showing the operation of the compressor and the valve to which the operation control method of the refrigerator of the present invention.

본 발명은 냉장고의 운전제어방법에 관한 것으로, 특히 냉장실과 미라클존의 냉기 공급 주기를 연동 제어하여 압축기의 온/오프 횟수를 적게함으로써 압축기 손상을 방지하도록 한 냉장고의 운전제어방법에 관한 것이다.The present invention relates to an operation control method of a refrigerator, and more particularly, to an operation control method of a refrigerator to prevent damage to the compressor by reducing the number of ON / OFF times of the compressor by interlocking control of the cold air supply cycle between the refrigerating chamber and the Miracle Zone.

도 1은 종래 직냉식 소형 냉동냉장고의 사이클도이다.1 is a cycle diagram of a conventional direct cooling small freezer.

압축기(1)에서 토출된 고온고압의 냉매는 압축기(2)를 지나면서 방열이 되고 모세관(3)을 지나면서 감압이 되어 저온저압의 냉매가 된다.The high temperature and high pressure refrigerant discharged from the compressor 1 is radiated while passing through the compressor 2, and is reduced in pressure through the capillary tube 3 to become a low temperature and low pressure refrigerant.

상기 저온저압의 냉매는 먼저 냉동실(4)의 증발기(5)를 지나면서 열을 흡수 하고 다시 냉장실(5)의 증발기(7)를 지나면서 열을 흡수한 후 압축기(1)로 흡입이 된다.The low temperature low pressure refrigerant first absorbs heat while passing through the evaporator 5 of the freezer compartment 4, and then absorbs heat while passing through the evaporator 7 of the refrigerating compartment 5, and is then sucked into the compressor 1.

냉동실에 설치된 냉동용 증발기(6)와 냉장실에 설치된 냉장용 증발기(7)는 모두 직냉판 형태의 증발기이며, 냉동실의 냉동용 증발기(6)는 냉동실의 후면과 도어를 제외한 나머지면(상면과 저면 및 양측면)을 감쌀 수 있는 면적으로 형성되어 있고 점선으로 표시된 부분을 절곡함에 따라 격자형으로 구성되어 냉동실의 상면과 저면 및 양측면을 감싸게 된다.The freezing evaporator 6 installed in the freezer compartment and the refrigeration evaporator 7 installed in the refrigerating compartment are both direct type evaporators. The freezing evaporator 6 of the freezer compartment has the remaining surfaces (upper and bottom) except for the rear and door of the freezer compartment. And both sides) is formed as an area that can be wrapped and is formed in a grid shape by bending the portion indicated by the dotted line to surround the top and bottom and both sides of the freezer compartment.

냉장실의 냉장용 증발기(7)는 냉동실 증발기에 비해 아주 작은 면적으로 형성되어 있고 냉장실의 후면에 부착된다.The refrigerating evaporator 7 of the refrigerating compartment is formed in a very small area compared to the freezer evaporator and is attached to the rear side of the refrigerating compartment.

상기와 같은 직냉식 냉동냉장고에서는 냉장실의 냉장용 증발기(7)가 장착되어 있는 내부벽 표면온도를 감지하여 감지된 온도에 따라 압축기(1)의 운전을 제어하도록 하고 있다.In the direct-cooling freezer as described above, the operation of the compressor 1 is controlled according to the sensed temperature by detecting the surface temperature of the inner wall on which the evaporator 7 for the refrigerating compartment is mounted.

이때, 직냉식 냉동냉장고는, 냉장실내에 미라클존을 두어 야채,과일등을 적재하는데, 이러한 미라클실과 냉장실의 밸브는 각기 독립적으로 제어되어 냉기를 공급한다.At this time, the direct refrigeration refrigerator freezes the vegetables, fruits and the like by placing a Miracle Zone in the refrigerating chamber. The valves of the Miracle Chamber and the Refrigerating Chamber are independently controlled to supply cold air.

즉, 도2와 같이, 압축기가 온된 상태에서, 냉장실의 온도가 일정 온도 이상이면 냉장실의 밸브를 오픈시키고 미라클존을 클로우즈시켜 냉기를 공급하고, 냉장실의 온도가 일정온도 이하로 떨어지면 압축기를 오프시켜 냉장실의 밸브를 클로우즈시킨 상태에서, 미라클존의 온도를 감지하여 압축기를 온,오프시키면서 미라클존 밸브를 온/오프시켜 냉기를 공급한다. That is, as shown in FIG. 2, when the temperature of the refrigerating chamber is above a predetermined temperature, the valve of the refrigerating chamber is opened and the miracle zone is closed to supply cold air, and when the temperature of the refrigerating chamber falls below a certain temperature, the compressor is turned off. With the valve of the refrigerating chamber closed, the temperature of the Miracle Zone is sensed and the compressor is turned on / off while the compressor is turned on and off to supply cold air.                         

그러나, 상술한 바와같이, 냉장실과 미라클존의 밸브를 독립적으로 제어하게 되면, 미라클존의 공간이 작기 때문에 그 미라클존의 냉기를 공급하기 위하여 압축기를 온/오프시키는 주기가 너무 짧게 되어 불필요한 에너지를 소모하게 되고, 아울러 압축기의 잦은 온/오프 동작으로 인하여 압축기가 손상되는 문제점이 있다., However, as described above, when the valves of the refrigerating compartment and the Miracle Zone are controlled independently, the cycle of turning on / off the compressor is too short to supply the cold air of the Miracle Zone because the space of the Miracle Zone is small, thereby reducing unnecessary energy. In addition, the compressor is damaged due to frequent on / off operation of the compressor.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 냉장실과 미라클존의 냉기 공급 주기를 연동 제어하여 압축기의 온/오프 횟수를 적게함으로써 압축기 손상을 방지함과 아울러 에너지 효율을 향상시키도록 한 냉장고의 운전제어방법을 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, by interlocking the cold air supply cycle of the refrigerating compartment and the Miracle Zone to reduce the number of on / off of the compressor to prevent damage to the compressor and to improve energy efficiency. It is an object of the present invention to provide a method for controlling operation of a refrigerator.

상기와 같은 목적을 달성하기 위한 본 발명은, 냉장실과 미라클존을 구비한 직냉식 냉장고에 있어서, 냉장실의 온도를 검출하여 그 검출온도가 제1 기준온도 보다 크면 압축기를 동작시키고, 미라클존 밸브는 클로우즈시킴과 동시에 냉장실 밸브를 오픈하여 냉기를 공급하는 과정과; 상기 냉장실의 온도를 검출하여 그 검출온도가 제1 기준온도보다 작아지면 상기 냉장실밸브를 클로우즈시킴과 동시에, 미라클존 밸브를 오픈하는 과정과; 상기 미라클존의 온도를 검출하여 그 검출온도를 제2 기준온도와 비교하는 과정과; 상기 비교결과, 미라클존의 온도가 제2 기준온도 보다 작으면 압축기를 오프시키고, 상기 미라클존의 온도가 제2 기준온도 보다 크면 압축기를 계속하여 동작시키는 과정을 반복적으로 수행함을 특징으로 한다.The present invention for achieving the above object, in the direct-cooling refrigerator having a refrigerating compartment and the Miracle zone, detects the temperature of the refrigerating compartment and operates the compressor when the detected temperature is greater than the first reference temperature, the Miracle Zone valve is closed Simultaneously supplying cold air by opening a refrigerator compartment valve; Detecting the temperature of the refrigerating compartment and closing the refrigerating compartment valve when the detected temperature is lower than a first reference temperature and opening the Miracle Zone valve; Detecting the temperature of the Miracle Zone and comparing the detected temperature with a second reference temperature; As a result of the comparison, when the temperature of the Miracle Zone is lower than the second reference temperature, the compressor is turned off. When the temperature of the Miracle Zone is higher than the second reference temperature, the compressor is repeatedly operated.

이하, 본 발명에 의한 냉장고의 운전제어방법에 대한 작용 및 효과를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, the operation and effect of the operation control method of the refrigerator according to the present invention will be described in detail with reference to the accompanying drawings.

도3은 본 발명 냉장고의 저온보상 램프 발열장치에 대한 구성을 보인 블록도이다.3 is a block diagram showing the configuration of a low temperature compensation lamp heating device of the present invention refrigerator.

도3에 도시한 바와같이, 본 발명은 냉장실의 온도를 검출하여 그 검출온도가 제1 기준온도 보다 크면 압축기를 동작시키고, 미라클존 밸브는 클로우즈시킴과 동시에 냉장실 밸브를 오픈하여 냉기를 공급하는 과정(SP1,SP2)과; 상기 냉장실의 온도를 검출하여 그 검출온도가 제1 기준온도보다 작아지면 상기 냉장실밸브를 클로우즈시킴과 동시에, 미라클존 밸브를 오픈하는 과정(SP3,SP4)과; 상기 미라클존의 온도를 검출하여 그 검출온도를 제2 기준온도와 비교하는 과정(SP5)과; 상기 비교결과, 미라클존의 온도가 제2 기준온도 보다 작으면 압축기를 오프시키고, 상기 미라클존의 온도가 제2 기준온도 보다 크면 압축기를 계속하여 동작시키는 과정 (SP6~SP8)으로 이루어지며, 이와같은 본 발명의 동작을 설명한다.As shown in FIG. 3, the present invention detects the temperature of the refrigerating compartment and operates the compressor when the detected temperature is greater than the first reference temperature, while closing the Miracle Zone valve and opening the refrigerating compartment valve to supply cold air. (SP1, SP2); Detecting the temperature of the refrigerating compartment and closing the refrigerating compartment valve when the detected temperature is lower than a first reference temperature and opening the Miracle Zone valve (SP3, SP4); Detecting the temperature of the Miracle Zone and comparing the detected temperature with a second reference temperature (SP5); As a result of the comparison, when the temperature of the Miracle zone is lower than the second reference temperature, the compressor is turned off. If the temperature of the Miracle Zone is higher than the second reference temperature, the compressor is continuously operated (SP6 to SP8). The same operation of the present invention will be described.

먼저, 냉장고 운전중에, 냉장실의 온도를 검출하고, 그 검출온도를 제1 기준온도(α)와 비교한다(SP1). First, during the operation of the refrigerator, the temperature of the refrigerating chamber is detected and the detected temperature is compared with the first reference temperature α (SP1).

상기 비교결과, 상기 냉장실의 온도가 제1 기준온도 보다 크면 압축기를 동작시키고, 미라클존 밸브는 클로우즈, 냉장실 밸브를 오픈시켜, 냉장실로만 냉기를 공급한다(SP2).As a result of the comparison, when the temperature of the refrigerating compartment is greater than the first reference temperature, the compressor is operated, and the Miracle Zone valve opens the closed and refrigerating compartment valves to supply cold air only to the refrigerating compartment (SP2).

그 다음, 상기 냉장실의 온도를 다시 검출하여 그 온도가 제1 기준온도보다 작아지면 상기 냉장실 밸브를 클로우즈 시켜 냉장실로의 냉기 공급을 차단하고, 동시에 미라클존 밸브를 오픈시켜 미라클존으로 냉기를 공급한다(SP3,SP4). Then, when the temperature of the refrigerating compartment is detected again and the temperature is lower than the first reference temperature, the refrigerating compartment valve is closed to block the supply of cold air to the refrigerating compartment, and at the same time, the Miracle Zone valve is opened to supply cold air to the Miracle Zone. (SP3, SP4).                     

그 다음, 상기 미라클존의 온도를 검출하여 그 검출온도를 제2 기준온도와 비교한다(SP5).Next, the temperature of the Miracle Zone is detected and the detected temperature is compared with the second reference temperature (SP5).

상기 비교결과, 미라클존의 온도가 제2 기준온도 보다 작으면 압축기를 오프시키고, 미라클존 밸브를 클로우즈 시킨후 상기 과정으로 궤환한다(SP6).As a result of the comparison, when the temperature of the Miracle Zone is lower than the second reference temperature, the compressor is turned off, the Miracle Zone valve is closed, and the process is returned to the above process (SP6).

만약, 상기 비교결과 상기 미라클존의 온도가 제2 기준온도 보다 크면 압축기를 계속하여 동작시키면서 미라클존의 밸브는 계속하여 오픈시키면서 상기 과정으로 궤환하여 상기 전 과정을 반복하여 수행한다(SP7,SP8).If, as a result of the comparison, if the temperature of the Miracle Zone is greater than the second reference temperature, while the compressor is continuously operated, the valve of the Miracle Zone is continuously opened and the valve is returned to the above process to repeat the whole process (SP7, SP8). .

다시 말해서, 본 발명은, 도4와 같이 냉장실과 미라클존의 냉기 공급 주기를 연동 제어함으로써, 압축기의 온/오프 횟수를 적게 하고, 냉장실 밸브 및 미라클존 밸브의 온오프를 압축기 구동과 연동하여 제어함으로써 에너지 효율을 향상시킨다.In other words, according to the present invention, as shown in FIG. 4, the intermittent control of the cold air supply cycle between the refrigerating compartment and the Miracle Zone reduces the on / off frequency of the compressor and controls the on / off of the refrigerating compartment valve and the Miracle Zone valve in conjunction with the compressor driving. This improves energy efficiency.

상기 본 발명의 상세한 설명에서 행해진 구체적인 실시 양태 또는 실시예는 어디까지나 본 발명의 기술 내용을 명확하게 하기 위한 것으로 이러한 구체적 실시예에 한정해서 협의로 해석해서는 안되며, 본 발명의 정신과 다음에 기재된 특허 청구의 범위내에서 여러가지 변경 실시가 가능한 것이다.Specific embodiments or examples made in the detailed description of the present invention are intended to clarify the technical contents of the present invention to the extent that they should not be construed as limited to these specific embodiments and should not be construed in consultation. Various changes can be made within the scope of.

이상에서 상세히 설명한 바와같이 본 발명은, 냉장실과 미라클존의 냉기 공급 주기를 연동 제어함으로써, 압축기의 온/오프 횟수를 적게 하고, 냉장실 밸브 및 미라클존 밸브의 온오프를 압축기 구동과 연동하여 제어함으로써 에너지 효율을 향상시키는 효과가 있다. As described in detail above, the present invention provides a combination of controlling the cold air supply cycle between the refrigerating compartment and the Miracle Zone, thereby reducing the number of on / off times of the compressor and controlling the on / off of the refrigerating compartment valve and the Miracle Zone valve in conjunction with the compressor driving. There is an effect of improving the energy efficiency.

Claims (1)

냉장실과 미라클존을 구비한 직냉식 냉장고에 있어서,In the direct-cooling refrigerator having a refrigerator compartment and a Miracle zone, 냉장실의 온도를 검출하여 그 검출온도가 제1 기준온도 보다 크면 압축기를 동작시키고, 미라클존 밸브는 클로우즈시킴과 동시에 냉장실 밸브를 오픈하여 냉기를 공급하는 과정과;Detecting the temperature of the refrigerating compartment and operating the compressor when the detected temperature is greater than the first reference temperature, closing the Miracle Zone valve and opening the refrigerating compartment valve to supply cold air; 상기 냉장실의 온도를 검출하여 그 검출온도가 제1 기준온도보다 작아지면 상기 냉장실밸브를 클로우즈시킴과 동시에, 미라클존 밸브를 오픈하는 과정과;Detecting the temperature of the refrigerating compartment and closing the refrigerating compartment valve when the detected temperature is lower than a first reference temperature and opening the Miracle Zone valve; 상기 미라클존의 온도를 검출하여 그 검출온도를 제2 기준온도와 비교하는 과정과;Detecting the temperature of the Miracle Zone and comparing the detected temperature with a second reference temperature; 상기 비교결과, 미라클존의 온도가 제2 기준온도 작으면 압축기를 오프시키고, 상기 미라클존의 온도가 제2 기준온도 보다 크면 압축기를 계속하여 동작시키는 과정을 반복적으로 수행함을 특징으로 하는 냉장고의 운전제어방법. As a result of the comparison, when the temperature of the Miracle Zone is lower than the second reference temperature, the compressor is turned off. If the temperature of the Miracle Zone is higher than the second reference temperature, the compressor is repeatedly operated. Control method.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0169616B1 (en) * 1996-04-25 1999-01-15 구자홍 Temperature control method and device of a refrigerator
KR20000041966A (en) * 1998-12-24 2000-07-15 구자홍 Method for controlling temperature of refreshing chamber in compatible type refrigerator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0169616B1 (en) * 1996-04-25 1999-01-15 구자홍 Temperature control method and device of a refrigerator
KR20000041966A (en) * 1998-12-24 2000-07-15 구자홍 Method for controlling temperature of refreshing chamber in compatible type refrigerator

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