KR20100052345A - Air conditioning system - Google Patents

Air conditioning system Download PDF

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Publication number
KR20100052345A
KR20100052345A KR1020080111314A KR20080111314A KR20100052345A KR 20100052345 A KR20100052345 A KR 20100052345A KR 1020080111314 A KR1020080111314 A KR 1020080111314A KR 20080111314 A KR20080111314 A KR 20080111314A KR 20100052345 A KR20100052345 A KR 20100052345A
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KR
South Korea
Prior art keywords
heat exchanger
outdoor heat
refrigerant
air conditioning
refrigerant pipe
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KR1020080111314A
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Korean (ko)
Inventor
이한춘
사용철
이상열
김홍성
Original Assignee
엘지전자 주식회사
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Priority to KR1020080111314A priority Critical patent/KR20100052345A/en
Publication of KR20100052345A publication Critical patent/KR20100052345A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/34—Heater, e.g. gas burner, electric air heater

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

PURPOSE: An air conditioning system is provided to shorten defrost time by differently distributing high refrigerant to the upper and lower ends of an outdoor heat exchanger in a defrost process. CONSTITUTION: An air conditioning system(1) comprises an outdoor heat exchanger(15) and a heater(20). Refrigerant flows into the inside of the outdoor heat exchanger. The outdoor heat exchanger comprises a refrigerant pipe and a heat exchange fin. The refrigerant pipe comprises a straight part and a hair band. The heat exchange fin touches with the outer circumference of the refrigerant pipe. The heater is attached to the side of the outdoor heat exchanger and comprises a plurality of grooves for containing the hair band. When defrost is necessary, the power is applied to the heater to heat the refrigerant pipe.

Description

공기 조화 시스템{Air conditioning system}Air conditioning system

본 발명은 공기 조화 시스템에 관한 것이다. The present invention relates to an air conditioning system.

일반적으로, 공기 조화 시스템은, 압축기, 응축기, 팽창 부재 및 증발기로 이루어지는 냉매 순환 사이클에 관한 것으로서, 냉매의 흐름 방향에 따라서 냉방 사이클과 난방 사이클로 구별된다. In general, an air conditioning system relates to a refrigerant circulation cycle consisting of a compressor, a condenser, an expansion member, and an evaporator, and is classified into a cooling cycle and a heating cycle according to the flow direction of the refrigerant.

상기 공기 조화 시스템은 실내 공간을 실외 온도보다 높게 유지하거나, 실내 온도보다 낮게 유지하도록 하는데 적용된다. The air conditioning system is applied to keep indoor space above outdoor temperature or below room temperature.

또한, 상기 공기 조화 시스템에 사방 밸브와 같은 방향 전환 밸브가 장착되어, 냉방 사이클과 난방 사이클이 선택적으로 수행되도록 할 수도 있다. The air conditioning system may also be equipped with a diverter valve, such as a four-way valve, to allow a cooling cycle and a heating cycle to be selectively performed.

한편, 가정용 냉난방 겸용 공기 조화기, 즉 히트 펌프는 실외 온도가 섭씨 5도 이하이고, 습도가 높은 저온 고습 조건에서 난방 운전을 하면 실외 열교환기 표면에 서리가 발생하게 된다. 그리고, 상기 서리는 시간이 지남에 따라 실외 열교환기 표면에 얼어붙어서 실외 공기와 냉매간의 열교환 효율을 저하시키는 요인이 된다. On the other hand, the home air conditioning combined air conditioner, that is, the heat pump has an outdoor temperature of 5 degrees Celsius or less, when the heating operation in a low temperature and high humidity conditions with high humidity causes frost on the surface of the outdoor heat exchanger. In addition, the frost may freeze on the surface of the outdoor heat exchanger as time passes, thereby reducing the heat exchange efficiency between the outdoor air and the refrigerant.

이러한 경우, 대부분의 히트 펌프 시스템에서는 실외 열교환기의 서리 제거 를 위하여, 냉매 사이클의 역으로 동작시켜 실외 열교환기가 응축기의 기능을 수행하도록 한다. 그러면, 실외 열교환기의 표면에 응결된 서리가 녹아 내리게 된다. In this case, in most heat pump systems, in order to defrost the outdoor heat exchanger, the heat exchanger operates in reverse of the refrigerant cycle so that the outdoor heat exchanger functions as a condenser. Then, the condensation frost melts on the surface of the outdoor heat exchanger.

그러나, 종래의 경우, 제상 운전 과정에서 실외 열교환기가 응축기로 작용하게 되고, 냉매가 실외 열교환기를 이루는 배관에 균일하게 분포하게 된다. 실질적으로, 실외 열교환기는 수직하게 설치되므로, 제상 과정에서 실외 열교환기의 상측에서 녹아내리는 응축수는 하강하면서 실외 열교환기의 하단에서 다시 결빙하게 된다. 즉, 실외 열교환기의 하단에서 누적 결빙이 발생하게 된다. 그럼에도 불구하고, 고온의 냉매가 실외 열교환기에 균일하게 분포하므로, 실외 열교환기의 하단에서는 제상이 완전히 이루어지지 못하거나, 제상 시간이 길어지게 되어, 난방 운전율이 감소하는 단점이 있다. However, in the conventional case, the outdoor heat exchanger acts as a condenser during the defrosting operation, and the refrigerant is uniformly distributed in the pipe forming the outdoor heat exchanger. In fact, since the outdoor heat exchanger is installed vertically, the condensate melted on the upper side of the outdoor heat exchanger during the defrosting process descends and freezes again at the bottom of the outdoor heat exchanger. That is, cumulative freezing occurs at the bottom of the outdoor heat exchanger. Nevertheless, since the high-temperature refrigerant is uniformly distributed to the outdoor heat exchanger, the lower end of the outdoor heat exchanger is not completely defrosted, or the defrosting time is long, there is a disadvantage that the heating operation rate is reduced.

본 발명은 상기와 같은 종래 공기 조화 시스템의 문제점을 개선하기 위하여 제안된 것으로서, 실외 열교환기의 냉매 배관에 가열 장치가 부착되도록 하여 제상이 이루어지도록 하는 공기 조화 시스템을 제공하는 것을 목적으로 한다.The present invention has been proposed to improve the above problems of the conventional air conditioning system, and an object of the present invention is to provide an air conditioning system in which a heating device is attached to a refrigerant pipe of an outdoor heat exchanger so that defrost is performed.

상기와 같은 목적을 달성하기 위한 본 발명의 실시예에 따른 공기 조화 시스템에는, 내부에 냉매가 흐르고, 직선부와 헤어 밴드로 이루어지는 냉매 배관과, 상기 냉매 배관의 외주면에 접촉되는 열교환핀이 포함되는 실외 열교환기; 상기 실외 열교환기의 측면에 부착되며, 상기 헤어 밴드가 수용되기 위한 홈이 다수 개 배열되는 가열 장치가 포함되고, 제상 필요 시점에서 상기 가열 장치로 전원이 인가되어 상기 냉매 배관을 가열하는 것을 특징으로 한다.An air conditioning system according to an embodiment of the present invention for achieving the above object, the refrigerant flows therein, and includes a refrigerant pipe consisting of a straight portion and a hair band, and a heat exchange fin in contact with the outer peripheral surface of the refrigerant pipe Outdoor heat exchanger; It is attached to the side of the outdoor heat exchanger, and includes a heating device is arranged a plurality of grooves for accommodating the hair band, characterized in that the power is applied to the heating device when defrosting required to heat the refrigerant pipe do.

상기와 같은 구성을 이루는 본 발명의 실시예에 따른 공기 조화 시스템에 의하여, 제상 과정에서 실외 열교환기의 상단과 하단으로 고온의 냉매가 차등 분배되므로, 제상 시간이 단축되는 효과가 있다. By the air conditioning system according to the embodiment of the present invention having the above configuration, since the high-temperature refrigerant is differentially distributed to the top and bottom of the outdoor heat exchanger during the defrosting process, the defrosting time is shortened.

즉, 누적 결빙이 생기는 실외 열교환기의 하단부로 많은 양의 냉매가 공급되도록 하여, 실외 열교환기의 상단과 하단의 제상 종료 시점 간격이 최소화됨으로써, 단시간에 제상이 완료되어 난방 운전 효율이 증가하게 되는 효과가 있다. That is, a large amount of refrigerant is supplied to the lower end of the outdoor heat exchanger that accumulates freezing, thereby minimizing the interval between end points of defrosting of the upper and lower ends of the outdoor heat exchanger, thereby completing defrosting in a short time and increasing heating operation efficiency. It works.

이하에서는 본 발명의 실시예에 대하여 도면을 참조하여 상세히 설명하도록 한다. 그러나, 본 발명의 사상은 제시되는 실시예에 제한되지 아니함을 밝혀 둔다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it is to be understood that the spirit of the present invention is not limited to the examples presented.

도 1은 본 발명의 실시예에 따른 공기 조화 시스템의 구성도이다.1 is a configuration diagram of an air conditioning system according to an embodiment of the present invention.

도 1을 참조하면, 본 발명의 실시예에 따른 공기 조화 시스템(1)에는, 냉매를 고온 고압으로 압축하는 압축기(11)와, 상기 압축기(11)로부터 토출되는 냉매의 흐름 방향을 결정하는 사방 밸브(12)와, 난방 운전 시 압축기(11)를 통과한 냉매가 흐르는 실내 열교환기(13)와, 상기 실내 열교환기(13)를 통과한 액상 냉매를 저온 저압 상태의 2상 냉매로 변화시키는 팽창 부재(14)와, 상기 팽창 부재(14)를 통과한 냉매와 실외 공기가 열교환하도록 하는 실외 열교환기(15) 및 상기 실외 열교환기(15)의 배관에 부착되는 가열 장치(20)가 포함된다. Referring to FIG. 1, an air conditioner system 1 according to an embodiment of the present invention includes a compressor 11 for compressing a refrigerant at high temperature and high pressure, and a flow direction for determining a flow direction of the refrigerant discharged from the compressor 11. The valve 12, the indoor heat exchanger 13 through which the refrigerant passed through the compressor 11 during heating operation, and the liquid refrigerant passing through the indoor heat exchanger 13 are changed into a two-phase refrigerant at low temperature and low pressure. An expansion member 14, an outdoor heat exchanger 15 for allowing the outdoor air to exchange heat with the refrigerant passing through the expansion member 14, and a heating device 20 attached to a pipe of the outdoor heat exchanger 15. do.

상기와 같은 구성에 따라, 제상 필요 시점에서 상기 가열 장치(20)가 가열되도록 함으로써, 난방 운전이 지속되는 상태에서 제상이 수행 가능하게 된다. According to the above configuration, by allowing the heating device 20 to be heated at the time of defrosting necessary, defrosting can be performed in a state in which the heating operation is continued.

도 2는 본 발명의 실시예에 따른 가열 장치가 실외 열교환기의 배관에 장착되는 모습을 보여주는 분해 사시도이다. Figure 2 is an exploded perspective view showing a state in which the heating device according to an embodiment of the present invention is mounted on the pipe of the outdoor heat exchanger.

도 2를 참조하면, 본 발명의 실시예에 따른 실외 열교환기(15)에는, 내부에 냉매가 흐르는 냉매 배관과, 상기 냉매 배관이 관통하기 위한 다수의 홀이 형성되는 열교환 핀(151)이 포함된다. 상세히, 상기 냉매 배관은 직선부(153)와, 직선부(153)의 단부에서 U 형상으로 만곡되는 헤어 밴드(152)로 이루어진다. Referring to FIG. 2, the outdoor heat exchanger 15 according to an exemplary embodiment of the present invention includes a refrigerant pipe through which a refrigerant flows, and a heat exchange fin 151 having a plurality of holes through which the refrigerant pipe passes. do. In detail, the refrigerant pipe includes a straight portion 153 and a hair band 152 curved in a U shape at the end of the straight portion 153.

또한, 상기 가열 장치(20)에는 상기 헤어 밴드(152)가 수용되는 다수 개의 수용홈(21)이 형성되고, 전원(P)에 연결되어 전기적으로 가열된다. 상기 가열 장 치(20)의 수용홈(21)에 상기 헤어 밴드(152)가 삽입되도록, 상기 가열 장치(20)를 상기 실외 열교환기(15)의 측면에 결합시킨다. 그리고, 제상 필요 시점에서 전원(P)이 인가되도록 하면, 상기 가열 장치(20)가 가열된다. 그리고, 상기 가열 장치(20)에서 발생하는 열이 상기 냉매 배관(15) 내부에 흐르는 냉매가 가열된다. 그러면, 상기 냉매 배관(15), 특히 직선부(153)와 헤어 밴드(152)의 표면 온도도 함께 증가하여, 배관 표면에 서리가 생기는 현상(착상)이 방지된다.In addition, a plurality of receiving grooves 21 in which the hair band 152 is accommodated is formed in the heating device 20, and are connected to a power source P to be electrically heated. The heating device 20 is coupled to the side of the outdoor heat exchanger 15 so that the hair band 152 is inserted into the receiving groove 21 of the heating device 20. And when the power supply P is applied at the time required of defrost, the said heating apparatus 20 is heated. The refrigerant flowing in the refrigerant pipe 15 inside the heat generated by the heating device 20 is heated. Then, the surface temperature of the refrigerant pipe 15, in particular, the straight portion 153 and the hair band 152 also increases, thereby preventing phenomena (frost) on the surface of the pipe.

상기 가열 장치(20)는 열전도성이 높은 금속 소재로 이루어질 수 있으며, 상기 실외 열교환기(20)에 착탈 가능하게 결합될 수 있다. The heating device 20 may be made of a metal material having high thermal conductivity, and may be detachably coupled to the outdoor heat exchanger 20.

도 1은 본 발명의 실시예에 따른 공기 조화 시스템의 구성도.1 is a block diagram of an air conditioning system according to an embodiment of the present invention.

도 2는 본 발명의 실시예에 따른 가열 장치가 실외 열교환기의 배관에 장착되는 모습을 보여주는 분해 사시도.Figure 2 is an exploded perspective view showing a state in which the heating device according to an embodiment of the present invention is mounted on the pipe of the outdoor heat exchanger.

Claims (3)

내부에 냉매가 흐르고, 직선부와 헤어 밴드로 이루어지는 냉매 배관과, 상기 냉매 배관의 외주면에 접촉되는 열교환핀이 포함되는 실외 열교환기;An outdoor heat exchanger having a refrigerant flowing therein, a refrigerant pipe comprising a straight portion and a hair band, and a heat exchange fin contacting an outer circumferential surface of the refrigerant pipe; 상기 실외 열교환기의 측면에 부착되며, 상기 헤어 밴드가 수용되기 위한 홈이 다수 개 배열되는 가열 장치가 포함되고,It is attached to the side of the outdoor heat exchanger, and includes a heating device is arranged a plurality of grooves for accommodating the hair band, 제상 필요 시점에서 상기 가열 장치로 전원이 인가되어 상기 냉매 배관을 가열하는 것을 특징으로 하는 공기 조화 시스템.An air conditioning system, wherein power is applied to the heating device at a defrost time point to heat the refrigerant pipe. 제 1 항에 있어서,The method of claim 1, 상기 가열 장치는 열전도성이 높은 금속 소재로 이루어지는 것을 특징으로 하는 공기 조화 시스템.And said heating device is made of a metal material having high thermal conductivity. 제 1 항에 있어서,The method of claim 1, 상기 가열 장치는 상기 실외 열교환기에 탈부착 가능하게 결합되는 것을 특징으로 하는 공기 조화 시스템.And the heating device is detachably coupled to the outdoor heat exchanger.
KR1020080111314A 2008-11-10 2008-11-10 Air conditioning system KR20100052345A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110081526A (en) * 2019-06-03 2019-08-02 宁波奥克斯电气股份有限公司 Radiating subassembly and air conditioner
CN113883660A (en) * 2020-07-02 2022-01-04 青岛海尔空调电子有限公司 Heat pump type air conditioning system and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110081526A (en) * 2019-06-03 2019-08-02 宁波奥克斯电气股份有限公司 Radiating subassembly and air conditioner
CN113883660A (en) * 2020-07-02 2022-01-04 青岛海尔空调电子有限公司 Heat pump type air conditioning system and control method thereof

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