KR960011360A - Defroster and Defrosting Method of Inverter Air Conditioner - Google Patents

Defroster and Defrosting Method of Inverter Air Conditioner Download PDF

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Publication number
KR960011360A
KR960011360A KR1019940023705A KR19940023705A KR960011360A KR 960011360 A KR960011360 A KR 960011360A KR 1019940023705 A KR1019940023705 A KR 1019940023705A KR 19940023705 A KR19940023705 A KR 19940023705A KR 960011360 A KR960011360 A KR 960011360A
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South Korea
Prior art keywords
temperature
compressor
refrigerant
heat exchanger
defrosting
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KR1019940023705A
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Korean (ko)
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KR100329269B1 (en
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김경식
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이헌조
엘지전자 주식회사
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Priority to KR1019940023705A priority Critical patent/KR100329269B1/en
Publication of KR960011360A publication Critical patent/KR960011360A/en
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Publication of KR100329269B1 publication Critical patent/KR100329269B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D5/00Hot-air central heating systems; Exhaust gas central heating systems
    • F24D5/02Hot-air central heating systems; Exhaust gas central heating systems operating with discharge of hot air into the space or area to be heated
    • F24D5/04Hot-air central heating systems; Exhaust gas central heating systems operating with discharge of hot air into the space or area to be heated with return of the air or the air-heater
    • 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
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06Removing frost
    • F25D21/08Removing frost by electric heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00Components of central heating installations excluding heat sources
    • F24D2220/02Fluid distribution means
    • F24D2220/0242Multiple way valves

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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)
  • Air Conditioning Control Device (AREA)

Abstract

본 발명은 겨울철에는 난방기능을 하고, 여름철에는 냉방기능을 하는 인버터 냉난방기에 관한 것으로서, 특히 겨울철 난방동작시 실외온도가 영하이하로 떨어져 실외 열교환기에 발생하는 서리를 난방동작을 진행하면서 신속하게 제상할 수 있는 인버터 냉난방기의 제상장치와 제상방법에 관한 것이다. 종래의 인버터 냉난방기의 제상법은 제상시간이 길고, 난방동작을 멈추고 냉방동작으로 모드변환하여 제상동작을 하기 때문에 실내 연교환기에 의해 실내온도가 5℃~6℃정도 감소하게 되며, 난방에서 냉방으로, 냉방에서 난방으로 기능 전환시 사방변이 냉방 또는 난방기능에 알맞게 절환되므로 사방변 절환소음이 발생되고 또한 사방변의 수명이 단축되는 문제점이 있었다. 따라서, 본 발명은 상기 문제점을 해결하기 위해 제상용 이방변과 전자제어 팽창변, 인버터 압축기를 사용하여 난방동작을 진행하면서 실외 열교환기에 얼ㄹ어붙은 서리를 짧은 시간에 제상할 수 있고, 난방동작을 진행하면서 제상작업을 수행하기 때문에 사방변을 절환하지 않으므로 사방변 절환소음이 발생하지 않고, 사방변의 수명의 길어지게 되는 인버터 냉난방기의 제상장치와 제상방법이다.The present invention relates to an inverter air conditioner that functions as a heating function in winter and a cooling function in summer, and in particular, during winter heating operation, when the outdoor temperature drops below zero, the frost generated in the outdoor heat exchanger is rapidly defrosted while the heating operation is performed. It relates to a defrosting device and a defrosting method of an inverter air conditioner. In the conventional defrosting method of the inverter air conditioner, the defrosting time is long, the heating operation is stopped and the mode is converted to the cooling operation to perform the defrosting operation. Therefore, the indoor temperature exchanger reduces the room temperature by 5 ° C to 6 ° C. When switching the function from cooling to heating, the four-sided switching is appropriate for the cooling or heating function, so there is a problem that the four-sided switching noise is generated and the life of the four sides is shortened. Accordingly, the present invention can defrost the frost frozen in the outdoor heat exchanger in a short time while the heating operation using the defrost anisotropic valve, electronically controlled expansion valve, inverter compressor in order to solve the above problems. It is a defrosting device and defrosting method of an inverter air conditioner that does not change the four sides because the defrosting operation is performed while the four sides do not change.

Description

인버터 냉난방기의 제상장치와 제상방법Defroster and Defrosting Method of Inverter Air Conditioner

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명의 인버터 냉난방기의 블럭도,2 is a block diagram of an inverter air conditioner of the present invention;

제3도는 본 발명의 인버터 냉난방기의 제상방법의 플로우챠트.3 is a flowchart of the defrosting method of the inverter air conditioner of the present invention.

Claims (5)

냉매를 가변 압축하여 고온, 고압의 기체상태 냉매로 변환시켜 출력하는 압축기(11)와, 압축기(11)에서 배출되는 냉매의 온도를 감지하는 제1써미스터(12)와, 냉방시에는 압축기(11)에서 압축된 고온, 고압의 기체 상태 냉매를 실외 열교환기 (14)로 보내는 동시에 실내 열교환기(17)를 지나면서 주위의 열을 흡수한 냉매를 압축기(11)로 보내어주고, 난방시에는 압축기(11)에서 압축된 고온, 고압의 냉매를 실내 열교환기(18)로 보내는 동시에 실외 열교환기(14)를 지나면서 주위의 열을 흡수한 냉매가 압축기(11)로 보내어지도록 절환되는 사방변(13)과, 냉방시에는 압축기(11)로부터 공급되는 기체상태 냉매를 외부온도와 열교환하여 액체상태의 냉매로 변환되어 전자제어 팽창변(16)으로 배출하고, 난방시에는 전자제어 팽창변(16)에서 저온, 저압으로 팽창되어 액체상태로 된 냉매로 주위의 열을 흡수하여 사방변(13)을 통해 압축기(11)로 유입시키는 실외 열교환기 (14)와, 실외 열교환기(14)에 부착되어 실외온도를 측정하는 제2써미스터(15)와, 모터(17)에 의해 가변제어되어 냉난방시에 실내 열교환기(18) 또는 실외 열교환기(14)로부터 유입되는 기체상태 냉매를 낮은 압력의 액체상태로 변환시켜 저온, 저압으로 팽창되게 하는 전자제어 팽창변(16)과, 구동하여 상기 전자제어 팽창변(16)의 개구상태를 제어하는 모터(17)와, 냉방시에는 상기 전자제어 팽창변(16)으로부터 공급되는 저온, 저압의 냉매로 주위의 열을 흡수하여 압축기로 유입시키고, 난방시에는 압축기(11)에서 압축되어 고온, 고압의 기체상태로된 냉매를 실내온도와 열교환하여 액체상태의 냉매로 변환시키는 실내 열교환기(18)와, 제상동작시 개폐되어 압축기(11)에서 배출되는 고온, 고압의 기체상태 냉매가 실외 열교환기(14)로 공급되게 하는 제상용 이방변(20)으로 구성된 것을 특징으로 하는 인버터 냉난방기의 제상장치.Compressor 11 to variably compress the refrigerant to convert to a high-temperature, high-pressure gaseous refrigerant and outputs, a first thermistor 12 for sensing the temperature of the refrigerant discharged from the compressor 11, and the compressor 11 during cooling At the same time, the high-temperature, high-pressure gaseous refrigerant is compressed to the outdoor heat exchanger (14), and the refrigerant that absorbs the surrounding heat while passing through the indoor heat exchanger (17) is sent to the compressor (11). The four sides of the high-temperature, high-pressure refrigerant compressed by the (11) is sent to the indoor heat exchanger (18) and at the same time the refrigerant that absorbs the surrounding heat passing through the outdoor heat exchanger (14) is switched to the compressor (11) ( 13) and, during cooling, the gaseous refrigerant supplied from the compressor 11 is exchanged with the external temperature to be converted into a liquid refrigerant and discharged to the electronically controlled expansion valve 16. Low temperature, low pressure A second thermistor attached to the outdoor heat exchanger 14 and the outdoor heat exchanger 14 for absorbing the surrounding heat with the refrigerant in a state and flowing it into the compressor 11 through the four sides 13. 15 and variable control by the motor 17 converts the gaseous refrigerant flowing from the indoor heat exchanger 18 or the outdoor heat exchanger 14 into a low pressure liquid state during cooling and heating to expand to low temperature and low pressure. An electronically controlled expansion valve 16, a motor 17 for driving to control the opening state of the electronically controlled expansion valve 16, and a coolant with low temperature and low pressure supplied from the electronically controlled expansion valve 16 during cooling. An indoor heat exchanger (18) which absorbs the surrounding heat and flows into the compressor, and converts the refrigerant, which has been compressed by the compressor (11), into a liquid state by heat exchange with a gaseous state of high temperature and high pressure when heated. Compressed by opening and closing during defrosting operation The commercial defroster Cooling & Heating of the inverter, characterized in that consists of anisotropically sides 20 for the high-temperature, high-pressure gaseous refrigerant discharged from 11 to be supplied to the outdoor heat exchanger (14). 제1항에 있어서, 상기 전자제어 팽창변(16)의 개구상태 제어는 모터(17)를 구동하여 제어하는 것을 특징으로 하는 인버터 냉난방기의 제상장치.2. The defrosting apparatus of an inverter air conditioner according to claim 1, wherein the opening state control of the electronically controlled expansion valve (16) is controlled by driving a motor (17). 제1항에 있어서, 상기 압축기(11) 대신 주파수 변화에 따라 냉매를 가변 압축하여 고온, 고압의 기체상태 냉매로 변환시키는 인버터 압축기를 사용하는 것을 특징으로 하는 인버터 냉난방기의 제상장치.The defrosting apparatus of an inverter air conditioner according to claim 1, wherein an inverter compressor for converting the refrigerant into a high-temperature, high-pressure gas state refrigerant is used instead of the compressor (11). 제2써미스터(15)에서 감지된 실외온도가 -10℃이하로 내려가는지를 판단하는 단계와, 상기 제2써미스터(15)에서 감지된 실외온도가 -10℃이하일경우 압축기(11)에서 배출되는 냉매의 온도를 일정온도 이상으로 올리기 우해 전자제어 팽창변(16)의 개도유지와 압축기(11)의 출력을 최대로 하는 단계와, 제1써미스터(12)에서 감지된 압축기(11)에서 배출되는 냉매의 온도가 일정온도 이상이면 제상을 이방변(20)을 열어주어 압축기(11)에서 배출되는 고온, 고압의 냉매가 실외 열교환기(14)로 유입되게 하는 단계로 구성된 것을 특징으로 하는 인버터 냉난방기의 제상방법Determining whether the outdoor temperature sensed by the second thermistor 15 falls below -10 ° C, and the refrigerant discharged from the compressor 11 when the outdoor temperature sensed by the second thermistor 15 falls below -10 ° C. Maintaining the opening of the electronically controlled expansion valve 16 and maximizing the output of the compressor 11 to raise the temperature of the electronic device to a temperature higher than a predetermined temperature, and the refrigerant discharged from the compressor 11 detected by the first thermistor 12. When the temperature is above a predetermined temperature, the defrost of the inverter air conditioner, comprising the step of opening the anisotropic valve 20 so that the high-temperature, high-pressure refrigerant discharged from the compressor 11 flows into the outdoor heat exchanger 14. Way 제4항에 있어서, 인버터 압축기를 사용할때, 상기 제2써미스터(15)에서 감지된 실외온도가 -10℃이하일 경우 인버터 압축기에서 배출되는 온도를 일정온도 이상을 올리기 우해 전자제어 팽창변(16)의 개도유지와 인버터 압축기의 입력 주파수를 최대로 하는 단계를 포함하는 것을 특징으로 하는 인버터 냉난방기의 제상방법The method of claim 4, wherein when using the inverter compressor, when the outdoor temperature detected by the second thermistor (15) is -10 ° C or less, the temperature of the electronically controlled expansion valve (16) to raise the temperature discharged from the inverter compressor by a certain temperature or more. Defrosting method of the inverter air conditioner comprising the step of maintaining the opening degree and the input frequency of the inverter compressor to the maximum ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940023705A 1994-09-16 1994-09-16 Device and method for defrosting for inverter cooling and heating system KR100329269B1 (en)

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Application Number Priority Date Filing Date Title
KR1019940023705A KR100329269B1 (en) 1994-09-16 1994-09-16 Device and method for defrosting for inverter cooling and heating system

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KR1019940023705A KR100329269B1 (en) 1994-09-16 1994-09-16 Device and method for defrosting for inverter cooling and heating system

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KR960011360A true KR960011360A (en) 1996-04-20
KR100329269B1 KR100329269B1 (en) 2002-08-09

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100862673B1 (en) 2008-03-18 2008-10-10 김용열 Refrigerating device for storehouse having reverse circulating thawing structure
KR101373568B1 (en) * 2012-12-17 2014-03-14 오텍캐리어냉장 유한회사 Apparatus and method for controlling defrost of refrigeration and freezing system

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