KR0154441B1 - Defrosting control method of a refrigerator - Google Patents
Defrosting control method of a refrigerator Download PDFInfo
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- KR0154441B1 KR0154441B1 KR1019930004284A KR930004284A KR0154441B1 KR 0154441 B1 KR0154441 B1 KR 0154441B1 KR 1019930004284 A KR1019930004284 A KR 1019930004284A KR 930004284 A KR930004284 A KR 930004284A KR 0154441 B1 KR0154441 B1 KR 0154441B1
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- defrosting
- defrost
- temperature
- cold air
- driving
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
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- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
본 발명은 냉장고에서 제상시 냉장실의 비교적 고온냉기를 상기 증방기로 순환시켜 서리를 제상하고 증발기의 차가운냉기는 냉장실로 순환시켜 냉장실의 온도상승을 방지하면서 제상을 할 수 있도록 한것에 관한 것으로,The present invention relates to defrosting frost by releasing relatively high temperature cold air of the refrigerating compartment to the evaporator when defrosting in the refrigerator and circulating cold chiller of the evaporator to the refrigerating compartment to prevent defrosting while preventing the temperature rise of the refrigerating compartment.
본 발명은 제상시 압축기와 냉기순환팬을 오프시키고, 제상히터를 구동시키면서 제상을 하도록된 냉장고의 제상제어방법에 있어서, 제상시, 제상운전판단단계와, 제상운전시, 압축기, 냉기순환팬 오프단계, 냉동실냉기차단판 구동 및 차단단계, 냉장실도어열림판단단계와, 냉기순환팬구동단계로 이루어지는 제상단계와, 제상단계에서 제상완료후 증발기제상온도와 냉장실유입공기온도와의 고저를 판단하는 온도판단단계와, 상기 냉장실로 유입공기온도가 증발기 제상공기온도보다 높지 않으면 제상시간을 완료하는 제상완료단계로 이루어짐을 특징으로 한 것.The present invention provides a defrosting control method of a refrigerator in which a compressor and a cold air circulation fan are defrosted during defrosting, and defrosting while driving a defrosting heater, wherein the defrosting operation determination step is performed during defrosting, and during the defrosting operation, the compressor and the cold air circulation fan are turned off. Defrosting step consisting of the steps of the freezer compartment cold cut-off plate driving and blocking step, refrigerating chamber door opening step, cold circulation fan driving step, and the temperature of judging the height of the evaporator defrost temperature and the refrigerating chamber inlet air temperature after defrosting in the defrost step Determination step, and the defrost completion step of completing the defrost time if the inlet air temperature to the refrigerating chamber is not higher than the evaporator defrost air temperature.
Description
제1도는 종래 냉동.냉장 및 제상시 공기흐름을 나타낸 냉장고의 단면도.1 is a cross-sectional view of a refrigerator showing air flow in the conventional refrigeration, refrigeration and defrost.
제2도는 종래 냉장고의 냉동실 닥트의 평면도.2 is a plan view of a freezer duct of a conventional refrigerator.
제3도는 냉장고의 증발기사시도.3 is an evaporator perspective view of a refrigerator.
제4도는 본 발명 제상시 공기흐름을 나타낸 냉장고의 단면도.Figure 4 is a cross-sectional view of the refrigerator showing the air flow when defrosting the present invention.
제5도는 본 발명에 적용되는 냉동실 닥트의 평면도.5 is a plan view of a freezer compartment duct applied to the present invention.
제6도는 본 발명에 적용되는 냉장고의 제어블럭도.6 is a control block diagram of a refrigerator applied to the present invention.
제7도는 본 발명 냉장고의 제상제어방법의 제1플로우챠트.7 is a first flowchart of the defrosting control method of the refrigerator according to the present invention.
제8도는 본 발명 냉장고의 제상제어방법의 제2플로우챠트.8 is a second flowchart of the defrosting control method of the refrigerator according to the present invention.
제9도는 본 발명 냉장고의 제상제어방법의 제3플로우챠트.9 is a third flowchart of the defrosting control method of the refrigerator according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 냉동실 2 : 냉장실1: freezer 2: cold storage room
3 : 냉기순환팬 4 : 증발기3: cold air circulation fan 4: evaporator
5 : 냉동실닥트 6 : 제상히터5: freezing chamber doc 6: defrost heater
7 : 냉기차단판 8 : 제상온도감지기7: cold air blocking plate 8: defrost temperature sensor
a : 냉동실온도센서부 b : 냉장실온도센서부a: Freezer compartment temperature sensor part b: Freezer compartment temperature sensor part
c : 제상타이머 d : 제상타이머c: defrost timer d: defrost timer
e : 마이콤 f : 압축기구동부e: Micom f: Compressor drive section
g : 제상작동부 h : 냉기순환팬구동부g: Defrosting operation unit h: Cold air circulation fan driving unit
i : 냉장실도어감지부 j : 닥트구동부i: Cold room door detection unit j: Duct drive unit
k : 제상온도감지부k: Defrost temperature detection unit
본 발명은 냉장고의 제상제어방법에 관한 것으로, 특히 냉장고에 제상시간이 도래하여 증발기에 착상된 서리제거시, 냉장실의 비교적 고온냉기를 상기증발기로 순환시켜 서리를 제상하고, 증발기의 차가운냉기는 냉장실로 순환시켜 냉장실의 온도 상승을 방지하면서 제상하도록한 냉장고의 제상제어방법에 관한 것이다.The present invention relates to a defrosting control method of a refrigerator. In particular, when the defrosting time arrives in the refrigerator, the frost removed on the evaporator is defrosted by circulating the relatively high-temperature cold air in the refrigerating chamber with the evaporator, and the cold freezing of the evaporator is in the refrigerating chamber. It relates to a defrosting control method of the refrigerator to defrost while circulating in a refrigeration chamber to prevent the temperature rise.
종래 냉장고의 제상제어방법은 제1도 내지 제3도에 도시한 바와같이, 압축기구동시, 냉동실(1)과 냉장실(2)의 공기를 냉기순환팬(3)으로 증발기(4)와 열교환시키고, 상기 증발기(4)에 의하여 열교환된 냉기는 냉동실닥트(5)를 통해서 상기 냉동실(1)과 냉장실(2)로 분배되어 냉동.냉장을 하게 되는바,In the conventional defrosting control method of the refrigerator, as shown in FIGS. 1 to 3, during operation of the compressor, air in the freezer compartment 1 and the refrigerating compartment 2 is exchanged with the evaporator 4 by a cold air circulation fan 3. The cold air heat exchanged by the evaporator 4 is distributed to the freezing chamber 1 and the refrigerating chamber 2 through a freezing chamber doctor 5 to perform freezing and refrigeration.
상기와 같이 냉동.냉장을 하는 동안 상기 증발기(4)의 표면에는 순환되는 냉기의 온도차에 의하여 서리가 끼게되고, 시간이 경과할 수록 증발기(4)의 표면에는 많은 량의 서리가 끼게되어 증발기(4)의 입출구사이에 압력 손실이 증가하므로 상기 냉기순환팬(3)으로 흡입하게 되는 공기량이 적어져 냉동실(1)과 냉장실(2)로 순환되는 공기량이 줄어들어 순환이 원활히 이루어지지 않으므로 결국 냉동실 (1), 냉장실(2)의 온도가 상승하게 된다.During the freezing and refrigerating as described above, the surface of the evaporator (4) is frost caused by the temperature difference of the cold air circulated, and as time passes, a large amount of frost is caught on the surface of the evaporator (4). Since the pressure loss increases between the inlet and outlet of 4), the amount of air sucked into the cold air circulation fan 3 decreases, and the amount of air circulated to the freezer compartment 1 and the refrigerating compartment 2 decreases, so that the circulation is not smoothly performed. 1), the temperature of the refrigerating chamber 2 rises.
따라서 상기 증발기(4)상에 소정량의 서리가 끼게되면, 서리를 제거시켜 주어야 하는데, 냉장고에서 압축리구동시간이 제상타이머에 일정시간 적산이 돠면 제상히터를 가열시켜 증발기 표면의 서리를 제거시켜 주게된다.Therefore, when a predetermined amount of frost is caught on the evaporator 4, the frost should be removed. When the compressed drive operation time is accumulated in the refrigerator for a predetermined time, the defrost heater is heated to remove frost on the surface of the evaporator. Is given.
이와같이 제상타이머에 의해 제상이 시작되면 냉동실의 온도상승을 방지하기 위하여, 상기 냉기순환팬(3)을 정지시키는 한편, 증발기(4) 상에 장착된 제상히터(6)에 전원을 인가하여, 제상히터(6)의 발열로 증발기(4)의 냉매관 및 핀에 끼어 있는 서리를 녹여주게 된다.When defrosting is started by the defrosting timer as described above, in order to prevent the temperature rise of the freezer compartment, the cold air circulation fan 3 is stopped and power is supplied to the defrost heater 6 mounted on the evaporator 4, thereby defrosting. The heat generated by the heater 6 melts the frost trapped in the refrigerant pipe and the fin of the evaporator 4.
그러나 상기 제상히터(6)에 의해 제상은 고온열에 의한 전도방식으로 상기 냉매관 및 핀에 끼어 있는 서리를 녹여주는데 걸리는 제상시간이 약 30∼50분으로 시간이 많이 걸려 제상전력의 누적으로 전력 소비를 가중시킬 뿐만 아니라, 제상시 발생되는 열이 냉동실(1)과 냉장실(2)로 열침투가 되어 냉동실(1)과 냉장실(2)의 온도 상승을 유발시켜 제상후 압축기재기동시 냉동냉장실(1)(2)의 적정온도를 유지시키는 시간이 많이 걸려 이중으로 전력을 소비시키는 문제점을 가지고 있었다.However, the defrosting by the defrost heater (6) takes a defrost time of about 30 to 50 minutes to melt the frost stuck in the refrigerant pipe and the fin in a conduction method by high temperature heat takes power consumption due to the accumulation of defrost power In addition, the heat generated during defrosting is thermally penetrated into the freezing chamber (1) and the refrigerating chamber (2), causing a rise in the temperature of the freezing chamber (1) and the refrigerating chamber (2), and the refrigerating and refrigerating chamber (1) when the compressor is restarted after defrosting (1). (2) It takes a long time to maintain the proper temperature had a problem of consuming power twice.
따라서 본 발명의 목적은 냉장고의 서리제상시, 냉장실의 비교적 고온냉기를 증발기로 순환시켜 증발기상의 서리를 제상토록 함으로써, 제상시간 및 히터 가열에 의한 전력소비를 줄이고자 하는데 있으며,Therefore, an object of the present invention is to reduce the defrost time and power consumption by heating the heater by circulating the relatively high temperature cold in the refrigerating chamber to the evaporator to defrost the frost on the evaporator during frost defrost of the refrigerator,
본 발명의 다른 목적은 냉장실의 비교적 고온냉기를 순환시켜 제상하고 증발기제상시 비교적 저온냉기는 다시 냉장실로 순환되게 함으로써 제상시 냉장실의 온도상승을 방지할 수 있어 제상후 압축기 재구동시 냉동내장실의 적정온도유지시간을 단축시키는데 있다.Another object of the present invention is to defrost by refrigerating the relatively high temperature cold air in the refrigerating compartment and to prevent the rise of the temperature of the refrigerating compartment during defrosting by allowing the relatively low temperature cold air to be circulated back to the refrigerating compartment when defrosting the evaporator. To shorten the temperature holding time.
상기의 목적을 실현하기 위하여 본 발명은, 제장시 압축기와 냉기순환팬을 오프시키고 제상히터를 구동시키면서 제상을 하도록된 냉장고의 제상제어방법에 있어서, 제상시, 제상운전을 판단하는 제상운전판단단계와, 상기 제상운전판단단계에서 제상운전시, 압축기오프단계, 냉기순환팬 오프단계, 냉동실 닥트냉기차단판 구동 및 냉동실 닥트차단단계와, 상기 냉장실닥트차단계에서 닥트가 차단된 상태에서 냉장실의 도어가 열려 있는가를 판단하는 냉장실도어개폐판단단계와, 상기 냉장실도어 개폐판단단계에서 도어가 열려있지 않으면 냉기 순환팬을 구동시키는 냉기순환팬구동단계와, 증발기의 제상공기온도의 냉장실로 유입되는 공기온도와의 고저를 판단하는 온도판단단계와, 상기 온도판단단계에서 냉장실로 유입되는 공기온도가 증발기제상 공기온도보다 높지 않으면 제상시간을 완료하는 제상시간완료단계로 이루어짐을 특징으로 한다.In order to realize the above object, the present invention, in the defrosting control method of the refrigerator to defrost while defrosting the compressor and the cold air circulation fan driving the defrosting operation, defrosting operation determination step of determining the defrosting operation during defrosting And, during the defrosting operation in the defrosting operation determination step, the compressor off step, cold air circulation fan off step, freezer duct cold air blocking plate driving and freezer duct blocking step, and the refrigeration room door duct in the state that the duct is blocked in the refrigerator compartment door step And a refrigerating chamber door opening / closing determination step of determining whether the door is open, a cold air circulation fan driving step of driving a cold air circulation fan if the door is not opened in the refrigerating chamber door opening / closing decision step, and an air temperature flowing into the refrigerating chamber of the defrost air temperature of the evaporator, and The temperature judging step of determining the height of the and the temperature of the air flowing into the refrigerating chamber in the temperature judging step Characterized by if the air temperature is not higher than made of an defrosting completion time to complete the defrosting time.
이하, 첨부된 도면에 의거 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제4도는 본 발명이 적용된 냉장고의 단면도로서, 냉동식품을 보관하는 냉동실(1)과, 냉장식품을 저장하는 냉장실(2)과, 고내의 비교적 고온냉기를 열교환하여 냉기를 방출하는 증발기(4)와, 상기 증발기(4)로부터 열교환된 냉기를 상기 냉동.냉장실(1)(2)로 송풍하는 냉기순환팬(3)와, 상기 냉기순환팬(3)로부터 송풍되는 냉기는 냉동실(1)로 유입되게 하는 냉동실닥트(5)와, 상기 증발기(4)의 서리를 제상하는 제상히터(6)와, 상기 냉동실닥트(5)에 상기 냉기순환팬(3)로 부터 송풍되는 냉기를 냉동실(1)로 유입 및 차단할 수 있는 냉동실냉기차단판(7)과, 증발기(4)의 제상시 발생되는 공기온도를 제상온도감지기(8)로 구성된다.4 is a cross-sectional view of a refrigerator to which the present invention is applied, a freezing chamber 1 for storing frozen foods, a refrigerating chamber 2 for storing refrigerated foods, and an evaporator 4 for dissipating cold air by heat-exchanging relatively high temperature cold air in a refrigerator. And a cold air circulation fan 3 for blowing cold air heat-exchanged from the evaporator 4 to the freezer / refrigeration chamber 1 and 2, and cold air blown from the cold air circulation fan 3 to the freezing chamber 1. The freezing chamber duct 5 which introduces | transduces it, the defrost heater 6 which defrosts the frost of the evaporator 4, and the cold air | air blown from the said cold air circulation fan 3 to the freezing chamber duct 5 The freezing chamber 1 The freezing chamber cold air blocking plate 7 which can be introduced into and blocked) and the air temperature generated during defrosting of the evaporator 4 are composed of a defrost temperature sensor 8.
도면중 미설명부호 9는 압축기이고, 10은 댐퍼이다.In the drawings, reference numeral 9 denotes a compressor, and 10 denotes a damper.
제5도는 본 발명에 적용되는 닥트의 냉동실냉기차단판이 닫혀진 상태를 나타낸 것이다.Figure 5 shows a state in which the freezer compartment cold blocking plate of the duct applied to the present invention is closed.
제6도는 본 발명에 적용되는 냉장고의 제어블럭도로서, 구동중인 냉장고의 냉동실 및 냉장실 고내온도를 감지하는 냉동.냉장실온도센서부(a)(b)와, 상기 냉장고의 냉동.냉장시 증발기의 서리를 제거하기 위하여 제상시간을 감지하는 제상타이머(c)와, 상기 냉동.냉장실 온도센서부(a)(b)와, 제상타이머(c)로부터 입력되는 신호를 받아 소정의 프로그램에 의하여 제어된 구동신호를 출력하여 각부를 제어하는 마이콤(d)과, 상기 마이콤(d)으로 부터 출력되는 제어신호를 받아 온.오프구동하는 압축기구동부(e)와, 상기 마이콤(d)으로부터 제어신로를 받아 히터를 구동시켜 증발기의 서리를 제거하는 제상작동부(f)와, 상기 마이콤(f)으로부터 제어신호를 받아 냉기를 냉동.냉장실로 송풍하는 냉기순환팬구동부(g)와, 냉장실의 도어개폐상태를 감지하는 냉장실도어감지부(h)와, 상기 압축기구동부(i)로부터 구동정지시, 마이콤(j)으로 제어신호를 냉기차단판을 개폐하는 닥트구동부(k)와, 증발기의 제상온도를 감지하는 제상온도감지부(k)로 구성되게 된다.FIG. 6 is a control block diagram of a refrigerator according to the present invention, and includes a freezing / freezing chamber temperature sensor unit (a) (b) for detecting internal temperatures of a freezer compartment and a freezing compartment of a driven refrigerator, and an evaporator for freezing / refrigerating the refrigerator. Defrost timer (c) for detecting the defrost time to remove frost, the freezing and refrigerating chamber temperature sensor (a) (b), and receives a signal input from the defrost timer (c) is controlled by a predetermined program The control signal is output from a microcomputer (d) for outputting a drive signal to control the respective parts, a compressor driver (e) for driving on and off by receiving a control signal output from the microcomputer (d), and the microcomputer (d). A defrosting operation part f for driving the heater to remove the frost of the evaporator, a cold air circulation fan driving part g for blowing the cool air to the refrigeration chamber by receiving a control signal from the microcomputer f, and opening and closing the door of the refrigerating compartment. The fridge to detect the condition Detecting unit (h), the duct driving unit (k) for opening and closing the cold air blocking plate to the control signal to the microcomputer (j) when the drive stops from the compressor driver (i), and the defrost temperature detection unit for detecting the defrost temperature of the evaporator (k).
제7도는 본 발명에 적용되는 냉장실공기에 의한 제1제상제어방법의 플로우챠트로써, 냉장고운전시, 압축기구동단계(700)와, 냉기순환팬구동단계(701)와, 냉동실닥트의 냉기차단판을 구동시키는 냉기차단판구동단계(702)와, 냉동실닥트를 개방하는 냉동실닥트개방단계(703)로 이루어지는 냉동 냉장단계(a)와, 상기 냉동.냉장단계(a)에서 냉동.냉장중 제상시간이 되었는가를 판단하는 제상시간판단단계(704)와, 상기 제상시간판단단계(704)에서, 제상시간이면 압축기오프단계(705)와, 냉기순호나팬오프단계(706), 냉기차단판구동단계(707), 냉동실닥트 폐쇄하는 냉동실닥트폐쇄단계(708), 냉장실도어가 열려있는가를 판단하는 냉장실도어열림판단단계(709)와, 상기 냉장실도어열림판단단계(709)에서 도어가 열러있지 않으면, 냉기순환팬을 구동하는 냉기순환팬구동단계(710)로 이루어지는 제상단계(b)와, 사이 제상단계(b)에서 냉장실로 유입되는 공기온도(TR1)가 제상된 증발기의 제상공기온도(Tda)보다 높은가를 판단하는 온도판단단계(711)와, 상기 온도판단단계(711)에서 냉장실로 유입되는 공기온도(TR1)가 높지 않으면 냉기순환팬을 오프시키는 냉기순환팬오프단계(712)와, 제상시간을 완료하는 제상시간완료단계(713)로 이루어지는 제상완료단계(c)로 구성한 것이다.7 is a flowchart of the first defrosting control method using the refrigerating chamber air applied to the present invention. In operation of the refrigerator, a compressor driving step 700, a cold air circulation fan driving step 701, and a cold air blocking plate of the freezing chamber duct are shown. Refrigeration refrigeration step (a) consisting of a cold air blocking plate driving step (702) for driving the operation, a freezing chamber opening step (703) for opening the freezing chamber duct, and the defrosting time during the freezing and refrigerating step (a). Defrost time determination step 704 to determine whether the defrost time determination step, the defrost time determination step 704, if the defrost time, compressor off step 705, cold air or fan off step 706, cold air blocking plate driving step ( 707), the freezer compartment closing step 708 of closing the freezer compartment door, the refrigerating chamber door opening determining step 709 for determining whether the refrigerating chamber door is opened, and if the door is not opened in the refrigerating chamber door opening determining step 709, cold air circulation Cold circulation fan drive stage for driving fan 710 defrost phase consisting of (b) and the air temperature flowing into the fresh food compartment between defrost step (b) (TR 1), the temperature determining step (711 to determine nopeunga more defrost air temperature (Tda) of the defrosting evaporator ), And if the air temperature (TR 1 ) flowing into the refrigerating chamber in the temperature determination step 711 is not high, the cold air circulation fan off step 712 for turning off the cold air circulation fan, and the defrost time completion step for completing the defrost time ( 713) is a defrost completion step (c) consisting of.
상기와 같이 이루어지는 본 발명의 작용효과를 설명하면 다음과 같다.Referring to the effects of the present invention made as described above are as follows.
먼저, 냉장고운전시, 마이콤(a)에서는 냉동냉장운전단계(a)로 들어가면서 압축기구동단계(700)로 가서 압축기구동부(e)를 구동제어하여 압축기를 구동시키고, 냉기순환팬구동단계(701)로 가서 냉기순환팬 구동부(g)를 제어하여 냉기순환팬(3)을 구동시키며, 냉기차단판구동단계(702)로 가서 냉동실 닥트구동부(j)를 제어하여 냉동실 닥트의 냉기차단판을 개방시켜, 상기 구동되는 냉기순환팬(3)으로 압축기(9)에 의하여 냉각된 증발기(4)와의 열교환된 냉기를 냉동 냉장실(1)(2)로 냉동실닥트(5)를 통해서 순환시켜 냉동냉장을 하되, 상기 마이콤(d)에서는 냉동실 온도센서부(a), 냉장실온도센서부(b)로 부터 냉동냉장실의 고내온도를 감지하면서 냉동냉장을 하게 된다.First, during the operation of the refrigerator, the microcomputer (a) enters the refrigeration refrigerating operation step (a) and goes to the compressor driving step 700 to drive and control the compressor driving part (e) to drive the compressor, and the cold air circulation fan driving step (701). The cold air circulation fan driving unit (g) is driven to drive the cold air circulation fan (3), and the cold air blocking plate driving step (702) controls the freezer duct driving unit (j) to open the cold air blocking plate of the freezer compartment duct. By circulating the cold heat exchanged with the evaporator 4 cooled by the compressor 9 by the driven cold air circulation fan 3 through the freezing chamber duct 5 to the freezing refrigerator compartment 1, 2, In the microcomputer (d), freezing and refrigerating is performed while sensing the internal temperature of the freezer compartment from the freezer compartment temperature sensor unit (a) and the freezer compartment temperature sensor unit (b).
상기와 같이 냉동냉장을 하던중에 제상시간이 도래하면 상기 마이콤(d)에서는 제상단계(b)의 제상시간판단단계(704)로 가서 제상타이머(c)로 부터 제상시간이 되었는가를 판단하게 되고, 이때 제상시간이 되지 않았으며, 상기 마이콤(d)에서는 상기 압축기구동단계(700)로 부터 제상시간이 될때까지 반복수행을 하게되며, 상기 제상시간 판단단계(704)에서 제상시간이 되면, 상기 마이콤(d)에서는 압축기 오프단계(705)로 가서 압축기구동부(e)를 제어하여 압축기(9)의 구동을 정지시키고, 냉기순환팬오프단계(706)로 가서 냉기순환팬구동부(f)를 제어하여 냉기순환팬(3)의 구동을 정지시키며, 이어서 상기 마이콤(d)에서는 냉기차단판구동단계(707)로 가서 닥트모터구동부(j)를 제어하여 냉기차단판(7)을 구동시키고 냉동실닥트 폐쇄단계(708)로 가서 냉동실닥트를 냉기차단판(7)으로 닫아주게되고, 상기 마이콤(d)에서는 냉장실도어 열림판단단계(709)로 가서 냉장실 도어감지부(i)로 부터 냉장실(2)의 도어가 열려있나를 판단하게 되며, 이때 냉장실의 도어가 열려 있으면, 상기 냉기순환팬오프단계(706)로 부터 냉장실(2)의 도어가 닫혀질때까지 반복수행하게 된다.As the defrosting time arrives during the freezing and cooling as described above, the microcomputer (d) goes to the defrosting time determination step 704 of the defrosting step (b) and determines whether the defrosting time has been reached from the defrosting timer (c). At this time, the defrost time has not been reached, the microcomputer (d) is repeatedly performed until the defrost time from the compressor driving step 700, and when the defrost time in the defrost time determination step 704, the micom In step (d), the compressor is turned off (705) to control the compressor driving unit (e) to stop the operation of the compressor (9), and to go to the cold circulation fan off step (706) to control the cold air circulation fan driving unit (f) The driving of the cold air circulation fan 3 is stopped, and then the microcomputer (d) goes to the cold air blocking plate driving step 707 to control the doc motor driving unit j to drive the cold air blocking plate 7 and close the freezing chamber duct. Go to step 708 to freeze the freezer duct It is closed with the train end plate (7), the microcomputer (d) goes to the refrigerating chamber door opening determination step 709 to determine whether the door of the refrigerating compartment (2) is opened from the refrigerating compartment door detection unit (i), at this time If the door of the refrigerating compartment is open, the cold air circulation fan off step 706 is repeated until the door of the refrigerating compartment 2 is closed.
그러나 상기 냉장실도어열림판단단계(709)에서 냉장실도어가 닫혀져 있는 것으로 판단되면, 상기 마이콤(d)에서는 냉기순환팬구동단계(710)로 가서 냉기순환팬구동부(사)를 제어하여 상기 제상을 하기 위하여 정지되어 있던 냉기순환팬(3)을 구동시키게 되고, 이 냉기 순환팬(3)의회전구동에 의하여 냉장실(2)의비교적 고온냉기는 증발기(4)로 순환되면서 공기대류에 의한 증발기(4)상에 끼어 있는 서리를 제상시켜 주게된다.However, if it is determined that the refrigerating chamber door is closed in the refrigerating chamber door opening determination step 709, the microcomputer (d) goes to the cold air circulation fan driving step 710 to control the cold air circulation fan driving unit (G) to perform the defrosting. The cold air circulation fan 3, which has been stopped, is driven, and the relatively high temperature cold air of the refrigerating chamber 2 is circulated to the evaporator 4 by the rotational driving of the cold air circulation fan 3, and the evaporator 4 by air convection 4 It will defrost the frost stuck in).
상기와같이 냉장실(2)의 고온냉기로 증발기(4)상에 서리를 제거도중에 상기 마이콤(d)에서는 제상완료단계(c)의 온도판단단계(711)로 가서 증발기 제상온도감지부(k)로부터 제상중인 증발기(4)의 재상공기온도(Tda)를 감지하고 냉장실온도부(b)로부터 냉장실로 유입되는 공기온도(TR1)를 감지하고 이 감지된 온도의 고.저를 판단하게 되는데, 이때 상기 증발기의 제상공기온도(Tda)보다 냉장실 유입공기온도(TR1)가 높으면, 상기 제상단계(b)의 냉장실도어열림판단단계(709)로부터 반복 수행하면서 냉장실의 고온냉기로 제상을 계속하게 되고, 상기 제상도중 상기 증발기의 제상공기온도(Tda)보다 냉장실유입공기온도(TR1)가 높지않으면 상기 마이콤(d)에서는 냉기순환팬오프단계(712)로 가서 냉기순환팬구동부(g)를 제어하여 냉기순환팬(3)의 구동을 정지시키고, 제상시간완료단계(713)로 가서 제상시간을 완료하여 제상을 중지하게 된다.As described above, while the frost on the evaporator 4 is removed by the high temperature cold of the refrigerating chamber 2, the microcomputer d goes to the temperature determination step 711 of the defrosting completion step c, and the evaporator defrosting temperature sensing unit k. It detects the re-air temperature (Tda) of the evaporator (4) being defrosted from the air, and detects the air temperature (TR 1 ) flowing into the refrigerating compartment from the refrigerating compartment temperature unit (b) and determines the high and low of the detected temperature. At this time, if the refrigerating chamber inlet air temperature (TR 1 ) is higher than the defrosting air temperature (Tda) of the evaporator, the defrosting is continued with the high temperature cold of the refrigerating chamber while repeatedly performing the refrigerating chamber door opening step (709) of the defrosting step (b). If the refrigerator compartment inlet air temperature TR 1 is not higher than the defrosting air temperature Tda of the evaporator during the defrosting, the microcomputer d goes to the cold air circulation fan off step 712 to perform the cold air circulation fan driving part g. Control to stop the operation of the cold air circulation fan (3), Go to the time to complete step 713 is stopped to complete the defrost defrost time.
제8도는 본 발명에 적용되는 냉장실공기와 제상히터에 의한 제2제상제어방법의 플로우챠트로서,상기 제7도의 냉동냉장단계(a)에서 냉동냉장중에 제상시간이 도래하여 제상이 시작되게 되면, 제상시간을 판단하는 제상시간 판단단계(704)와, 제상시간으로 판단돼면 압축기를 오프시키는 압축기 오프단계(705)호, 제상히터를 구동시키는 제상히터구동단계(800)를 거쳐 냉기순환팬(3)을 구동시켜서 상기 제상히터와 냉장실냉기로 제상을 하는 제상단계(b)와, 상기 제상단계(b)에서 증발기의 제상공기온도(Tda)보다 냉장실유입공기온도(TR1)가 높을 경우 냉기순환팬(3)을 오프시킨후, 상기 구동중인 제상히터온도가 제상히터작동시 제상을 완료시키기 위한 바이메탈온도(THE)보다 높은가를 판단하는 제상히터온도판단단계(801)와, 상기 제상히터온도가 바이메탈온도보다 높으면 구동중인 제상히터를 오프시키는 제상히터오프단계(802)와, 제상시간완료단계(713)로 이루어지는 제상완료단계(c)로 구성하여서된 것으로, 즉, 제상시 냉기순환팬(3)의 구동에 의한 냉장실냉기와, 제상히터구동단계(800)에서 제상작동부(f)를 제어하여 증발기(4)에 장착된 제상히터(6) 제상히터구동에 의한 히터열로 함께 증발기(4)의 서리를 제상시키도록 한 것이다.FIG. 8 is a flowchart of a second defrost control method using a refrigerating chamber air and a defrost heater applied to the present invention. When defrosting starts during defrosting in the freezing refrigerating step (a) of FIG. 7, Defrost time determination step 704 of determining the defrost time, the compressor off step 705 to turn off the compressor if it is determined as the defrost time, the defrost heater driving step 800 to drive the defrost heater through the cold air circulation fan (3) Defrosting step (b) of defrosting the defrost heater and the refrigerating chamber cold by driving the defrosting heater and the refrigerating chamber cold air circulation when the inlet air temperature TR 1 is higher than the defrosting air temperature Tda of the evaporator in the defrosting step (b). After the fan 3 is turned off, a defrost heater temperature determination step 801 of determining whether the driving defrost heater temperature is higher than the bimetal temperature (THE) for completing defrosting during defrost heater operation, and the defrost heater temperature is Bimetallic If it is higher than the defrost heater off step 802 for turning off the defrost heater in operation and the defrost completion step (c) consisting of the defrost time completion step 713, that is, the defrost heater of the cold air circulation fan (3) Of the evaporator 4 together with the refrigerating chamber cold by driving and the heater heat by the defrost heater 6 mounted on the evaporator 4 by controlling the defrosting operation part f in the defrost heater driving step 800. It is to defrost frost.
제9도는 본 발명에 적용되는 냉장실공기로 제상후 제상히터를 구동시켜 제상을 완료하는 제3제상제어방법의 플로우챠트로서, 상기 제7도의 냉동냉장단계(a)와, 냉기순환팬을 구동시켜 냉장실 냉기로 증발기상에 서리를 제상시키고난후, 냉기순환팬을 오프시켜 제상을 완료하는 제상완료단계(c)에서 제상히터를 온시키는 제상히터 구동단계(900)와, 상기 구동중인 제상히터온도가 제상히터 작동시 제상을 완료시키기 위한 바이메탈온도(THE)보다 높은가를 판단하는 제상히터온도판단단계(901)와, 상기 제상히터온도가 상기 바이메탈온도보다 높으면, 상기 구동중인 제상히터를 오프시키는 제상히터오프단계(902)와, 제상시간완료단계(713)로 이루어지는 제상완료단계(c)로 구성하여서된 것으로, 즉, 제상시 냉기순환팬(3)의 구동에 의한 냉장실냉기를 증발기로 순환시켜 증발기상의 서리를 제상하고 난후, 이어서 마이콤(d)에서는 제상히터구동단계(900)로 가서 제상작동부(f)를 제어하여 제상히터를 온구동시켜 제상히터의 열로 증발기를 제상하되, 제상히터온도판단단계(901)에서 제상중인 제상히터온도와 제상완료시키기 위한 바아메탈온도(THE) 보다 높은가를 판단하면서 제상히터 온도가 제상완료 바이메탈온도(THE)보다 높을때까지 제상을 하고, 제상히터오프단계(902)고 가서, 제상작동부(f)를 제어하여 제상히터(6)을 오프시키고, 제상을 완료하도록 한 것이다.FIG. 9 is a flowchart of a third defrosting control method of completing defrosting by driving a defrost heater after defrosting with a refrigerating chamber air applied to the present invention. The refrigeration step (a) of FIG. 7 and a cold air circulation fan After defrosting the frost on the evaporator in the refrigerating chamber cold, the defrost heater driving step 900 for turning on the defrost heater in the defrost completion step (c) of turning off the cold air circulation fan to complete defrosting, and the defrost heater temperature being driven is Defrost heater temperature determination step 901 for determining whether the defrost heater temperature is higher than the bimetal temperature (THE) for completing the defrost during operation, and if the defrost heater temperature is higher than the bimetal temperature, defrost heater to turn off the driving defrost heater The defrosting completion step (c) consisting of the off step 902 and the defrost time completion step 713, that is, the refrigerating chamber cold air by the operation of the cold air circulation fan (3) during defrosting the evaporator After defrosting the frost on the evaporator, and then go to the defrost heater driving step 900 in the microcomputer (d) to control the defrost operation unit (f) to drive the defrost heater on to defrost the evaporator by the heat of the defrost heater, In the heater temperature determination step 901, the defrost heater temperature is determined to be higher than the defrost heater temperature during defrost and the bar metal temperature (THE) for defrosting, and the defrost heater is defrosted until the defrost heater temperature is higher than the defrost completed bimetal temperature (THE). In the off stage 902, the defrosting operation unit f is controlled to turn off the defrost heater 6 to complete the defrosting.
이상에서 설명한 바와같이, 본 발명은 냉장고에서 냉동냉장후 제상시, 냉기순환팬을 구동시켜 냉장실의 고온냉기를 증발기로 순환시켜 증발기상의 서리를 제상시키고, 증발기제상시 발생된 냉기는 다시 냉장실로 순환시켜 냉장실의 고내온도를 냉각시켜 온도상승을 억제해주도록 함으로써, 제상시 제상시간을 단축시킬 수 있을 뿐만 아니라, 제상완료후 제기동시 냉장냉동실의 적정온도 유지시간을 단축할 수 있어 냉장고의 소비전력을 줄일 수 있는 효과를 제공해줄 수 있는 것이다.As described above, in the present invention, when defrosting after freezing in a refrigerator, the cold air circulation fan is driven to circulate the high-temperature cold air of the refrigerating chamber to the evaporator to defrost frost on the evaporator, and the cold air generated during defrosting of the evaporator is circulated back to the refrigerating chamber. By cooling the internal temperature of the refrigerating chamber to suppress the temperature rise, not only can the defrosting time during defrosting be reduced, but also the shortening time for maintaining the proper temperature of the refrigerating freezing compartment after defrosting is completed, thus reducing the power consumption of the refrigerator. It can provide a reduction effect.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930004284A KR0154441B1 (en) | 1993-03-19 | 1993-03-19 | Defrosting control method of a refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930004284A KR0154441B1 (en) | 1993-03-19 | 1993-03-19 | Defrosting control method of a refrigerator |
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| Publication Number | Publication Date |
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| KR940022039A KR940022039A (en) | 1994-10-19 |
| KR0154441B1 true KR0154441B1 (en) | 1999-02-18 |
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| KR1019930004284A KR0154441B1 (en) | 1993-03-19 | 1993-03-19 | Defrosting control method of a refrigerator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100747068B1 (en) * | 2006-02-17 | 2007-08-07 | 김재남 | Control method of storehouse |
| KR101328770B1 (en) * | 2007-03-28 | 2013-11-13 | 엘지전자 주식회사 | A reheating dehumidification system for refrigerator |
| WO2018088841A1 (en) * | 2016-11-10 | 2018-05-17 | 엘지전자 주식회사 | Refrigerator and control method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990052584A (en) * | 1997-12-22 | 1999-07-15 | 전주범 | How to Operate Air Curtain Fan of Refrigerator |
| KR101364570B1 (en) * | 2012-04-05 | 2014-02-18 | 주식회사 용성냉동 | Apparatus For Defrosting Of Tunnel Type Rapid Icing System |
-
1993
- 1993-03-19 KR KR1019930004284A patent/KR0154441B1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100747068B1 (en) * | 2006-02-17 | 2007-08-07 | 김재남 | Control method of storehouse |
| KR101328770B1 (en) * | 2007-03-28 | 2013-11-13 | 엘지전자 주식회사 | A reheating dehumidification system for refrigerator |
| WO2018088841A1 (en) * | 2016-11-10 | 2018-05-17 | 엘지전자 주식회사 | Refrigerator and control method thereof |
| US11384975B2 (en) | 2016-11-10 | 2022-07-12 | Lg Electronics Inc. | Refrigerator and control method thereof |
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| KR940022039A (en) | 1994-10-19 |
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