KR20050074796A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- KR20050074796A KR20050074796A KR1020040002691A KR20040002691A KR20050074796A KR 20050074796 A KR20050074796 A KR 20050074796A KR 1020040002691 A KR1020040002691 A KR 1020040002691A KR 20040002691 A KR20040002691 A KR 20040002691A KR 20050074796 A KR20050074796 A KR 20050074796A
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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
- F24F1/0007—Indoor units, e.g. fan coil units
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
본 발명은 실내열교환부 및 실외열교환부와, 상기 실내열교환부 및 상기 실외열교환부와 폐루프를 형성하며 냉매를 압축시키는 압축기와, 상기 압축기를 구동시키기 위한 압축기구동부를 갖는 공조기기에 있어서, 상기 압축기구동부와 상기 압축기 사이의 동력 전달을 개폐하는 동력개폐부와; 상기 압축기구동부를 냉각시키기 위한 냉각수가 순환하며, 상기 압축기구동부를 냉각시킨 냉각수에 의해 상기 압축기로 유입되는 냉매를 가열하기 위한 냉매가열순환경로를 형성하는 냉각수관과; 상기 냉각수관의 상기 냉매가열순환경로 상에 마련되어, 상기 압축기구동부를 냉각시킨 냉각수에 의해 상기 압축기로 유입되는 냉매가 가열되는 냉매가열부와; 상기 압축기구동부를 냉각시킨 냉각수가 상기 냉매가열순환경로를 따라 순환하는 것을 개폐하는 냉각수밸브와; 상기 압축기구동부의 초기 구동시 상기 동력개폐부 및 상기 냉각수밸브가 폐쇄된 상태에서 상기 압축기구동부를 구동시킨 후, 소정 시간 경과 후 상기 동력개폐부 및 상기 냉각수밸브를 개방하는 제어부를 포함하는 것을 특징으로 한다. 이에 의하여, 제조단가를 감소시키면서도 초기 구동시 압축기로의 액냉매의 유입을 최소화시킬 수 있다.The present invention provides an air conditioner having an indoor heat exchanger and an outdoor heat exchanger, a compressor for compressing a refrigerant by forming a closed loop with the indoor heat exchanger and the outdoor heat exchanger, and a compressor driver for driving the compressor. A power opening and closing unit for opening and closing a power transmission between the compressor driving unit and the compressor; A cooling water pipe configured to circulate a cooling water for cooling the compressor driving unit and to form a refrigerant heating pure environment path for heating the refrigerant flowing into the compressor by the cooling water cooling the compressor driving unit; A coolant heating unit provided on the coolant heating pure environment path of the coolant pipe and configured to heat a coolant flowing into the compressor by the coolant cooling the compressor driving unit; A cooling water valve configured to open and close the cooling water that cools the compressor driving part along the refrigerant heating environment path; And driving the compressor driving unit in a state in which the power switching unit and the cooling water valve are closed at the initial driving of the compressor driving unit, and after the predetermined time has elapsed, the control unit opening the power opening and closing unit and the cooling water valve. As a result, it is possible to minimize the inflow of the liquid refrigerant to the compressor during the initial operation while reducing the manufacturing cost.
Description
본 발명은 공조기기에 관한 것으로서, 보다 상세하게는, 초기 구동시 압축기로 액냉매의 유입을 최소화시킨 공조기기에 관한 것이다.The present invention relates to an air conditioner, and more particularly, to an air conditioner that minimizes the introduction of liquid refrigerant into the compressor during the initial operation.
공조기기는 냉동사이클을 사용하여 주거용 건물이나 사무용 건물의 실내온도와 습도와 같은 상태량을 조절하여 공기조화를 실현하는 장치이다. 여기서, 공조기기는 냉매의 압축, 응축, 팽창, 증발을 반복함으로서, 겨울철에는 응축에 의한 방열로 난방을 실현하고, 여름철에는 증발에 의한 흡열로 냉방을 실현하는 장치이다.An air conditioner is a device that realizes air conditioning by controlling a quantity of conditions such as indoor temperature and humidity in a residential building or an office building using a refrigeration cycle. Here, the air conditioner is a device that realizes heating by heat radiation by condensation in winter, and cooling by heat absorption by evaporation in summer by repeating compression, condensation, expansion, and evaporation of the refrigerant.
한편, 공조기기 중 GHP(Gas engine-driven Heat Pump) 방식의 공조기기는 가스 엔진의 구동력에 의해 압축기를 운전하고 엔진폐열을 활용하는 공조기기로서, 여름철의 냉방수요의 증가로 인한 전력수급의 불안정 문제를 야기시킬 수 있는 EHP(Electric motor-driven Heat Pump) 방식의 공조기기의 대안으로 널리 이용되고 있다.Meanwhile, GHP (Gas engine-driven heat pump) type air conditioner is an air conditioner that operates the compressor by the driving force of gas engine and utilizes engine waste heat.It is unstable in power supply and demand due to increase of cooling demand in summer. It is widely used as an alternative to the air motor of the electric motor-driven heat pump (EHP) method that can cause problems.
그런데, 이러한 종래의 공조기기에 있어서는, 압축기의 초기 구동시, 압축기에 액상의 냉매(이하, "액냉매"라 함)가 유입되는 경우가 발생할 수 있다. 예컨대, 압축기의 초기 구동시 압축기로 흡입되는 배관 내에 존재하는 액냉매가 증발되기 전에 압축기로 유입되어 액냉매의 압축, 즉 액압축이 발생하기 되는데, 이는 압축기의 수명에 치명적인 악영향을 미친다.However, in such a conventional air conditioner, when the compressor is initially driven, a liquid refrigerant (hereinafter referred to as "liquid refrigerant") may be introduced into the compressor. For example, during the initial operation of the compressor, the liquid refrigerant present in the pipe suctioned into the compressor is introduced into the compressor before evaporation, thereby causing compression of the liquid refrigerant, that is, liquid compression, which has a fatal adverse effect on the life of the compressor.
이에, 액냉매가 압축기에 유입되는 것을 방지하기 위해 어큐뮬레이터의 용량을 크게 설계하여 액냉매가 유입되는 것을 방지하는 방법이 제안되고 있으나, 어큐뮬레이터의 용량이 증가됨에 따라 제조단가가 증가시키는 단점이 있다. 또한, 어큐뮬레이터에 유입된 액냉매를 증발시키기 위해 핫가스 바이패스를 이용하는데, 이 경우 시스템의 능력을 저하시키는 문제점이 있다.In order to prevent the liquid refrigerant from flowing into the compressor, a method of preventing the accumulation of the liquid refrigerant by increasing the capacity of the accumulator has been proposed, but the manufacturing cost increases as the capacity of the accumulator increases. In addition, a hot gas bypass is used to evaporate the liquid refrigerant introduced into the accumulator, in which case there is a problem of lowering the capability of the system.
따라서, 본 발명의 목적은, 제조단가를 감소시키면서도 초기 구동시 압축기로의 액냉매의 유입을 최소화시킨 공조기기에 관한 것이다.Accordingly, an object of the present invention relates to an air conditioner which minimizes the introduction of liquid refrigerant into a compressor during initial operation while reducing manufacturing costs.
상기 목적은, 본 발명에 따라, 실내열교환부 및 실외열교환부와, 상기 실내열교환부 및 상기 실외열교환부와 폐루프를 형성하며 냉매를 압축시키는 압축기와, 상기 압축기를 구동시키기 위한 압축기구동부를 갖는 공조기기에 있어서, 상기 압축기구동부와 상기 압축기 사이의 동력 전달을 개폐하는 동력개폐부와; 상기 압축기구동부를 냉각시키기 위한 냉각수가 순환하며, 상기 압축기구동부를 냉각시킨 냉각수에 의해 상기 압축기로 유입되는 냉매를 가열하기 위한 냉매가열순환경로를 형성하는 냉각수관과; 상기 냉각수관의 상기 냉매가열순환경로 상에 마련되어, 상기 압축기구동부를 냉각시킨 냉각수에 의해 상기 압축기로 유입되는 냉매가 가열되는 냉매가열부와; 상기 압축기구동부를 냉각시킨 냉각수가 상기 냉매가열순환경로를 따라 순환하는 것을 개폐하는 냉각수밸브와; 상기 압축기구동부의 초기 구동시 상기 동력개폐부 및 상기 냉각수밸브가 폐쇄된 상태에서 상기 압축기구동부를 구동시킨 후, 소정 시간 경과 후 상기 동력개폐부 및 상기 냉각수밸브를 개방하는 제어부를 포함하는 것을 특징으로 하는 공조기기에 의해 달성된다.According to the present invention, the object has an indoor heat exchanger and an outdoor heat exchanger, a compressor for forming a closed loop with the indoor heat exchanger and the outdoor heat exchanger and compressing a refrigerant, and a compressor driver for driving the compressor. An air conditioner, comprising: a power opening and closing unit for opening and closing a power transmission between the compressor driving unit and the compressor; A cooling water pipe configured to circulate a cooling water for cooling the compressor driving unit and to form a refrigerant heating pure environment path for heating the refrigerant flowing into the compressor by the cooling water cooling the compressor driving unit; A coolant heating unit provided on the coolant heating pure environment path of the coolant pipe and configured to heat a coolant flowing into the compressor by the coolant cooling the compressor driving unit; A cooling water valve configured to open and close the cooling water that cools the compressor driving part along the refrigerant heating environment path; And a control unit for opening the power switch and the coolant valve after a predetermined time after driving the compressor driver in a state in which the power switch and the coolant valve are closed during initial driving of the compressor driver. Achieved by the appliance.
여기서, 상기 압축기구동부를 냉각시킨 냉각수의 온도를 감지하는 온도감지부를 더 포함하며; 상기 제어부는 상기 압축기구동부의 초기 구동시 상기 동력개폐부 및 상기 냉각수밸브가 폐쇄된 상태에서 상기 압축기구동부를 구동시킨 후, 상기 온도감지부에 의해 감지된 온도가 소정의 기준온도를 초과할 때 상기 동력개폐부 및 상기 냉각수밸브를 개방하는 것이 바람직하다.Here, further comprising a temperature sensing unit for sensing the temperature of the cooling water to cool the compressor drive unit; The control unit drives the compressor driving unit in a state in which the power switching unit and the cooling water valve are closed during the initial driving of the compressor driving unit, and when the temperature detected by the temperature sensing unit exceeds a predetermined reference temperature. It is preferable to open the opening and closing portion and the cooling water valve.
또한, 상기 제어부는 상기 압축기구동부의 초기 구동시 상기 동력개폐부 및 상기 냉각수밸브가 폐쇄된 상태에서 상기 압축기구동부를 구동시킨 후, 상기 온도감지부에 의해 감지된 온도가 소정의 기준온도를 초과할 때, 상기 냉각수밸브를 개방한 후 소정 시간 경과 후 상기 동력개폐부를 개방하는 것이 바람직하다.The control unit may drive the compressor driving unit in a state in which the power switching unit and the cooling water valve are closed during initial driving of the compressor driving unit, and when the temperature detected by the temperature sensing unit exceeds a predetermined reference temperature. After opening the cooling water valve, the power opening and closing part may be opened.
그리고, 상기 실내열교환부와 상기 실외열교환부 사이에 설치되어 냉매를 팽창시키는 팽창밸브를 더 포함하며; 상기 제어부는 상기 압축기구동부의 초기 구동시 상기 동력개폐부 및 상기 냉각수밸브가 폐쇄된 상태에서 상기 압축기구동부를 구동시킨 후, 상기 온도감지부에 의해 감지된 온도가 소정의 기준온도를 초과할 때, 상기 팽창밸브를 개방하는 것이 바람직하다.And an expansion valve installed between the indoor heat exchange part and the outdoor heat exchange part to expand a refrigerant. The control unit drives the compressor driving unit in a state in which the power switch and the cooling water valve are closed during the initial driving of the compressor driving unit, and when the temperature detected by the temperature sensing unit exceeds a predetermined reference temperature, It is preferable to open the expansion valve.
그리고, 상기 냉각수관은 상기 압축기구동부를 냉각시킨 냉각수가 상기 실외열교환기 측으로 순환하게 하는 실외열교환순환경로를 형성하며; 상기 냉각수밸브는 상기 압축기구동부를 냉각시킨 냉각수가 상기 냉매가열순환경로와 상기 실외열교환순환경로 중 어느 하나를 따라 선택적으로 순환하게 할 수 있다.And the coolant pipe forms an outdoor heat exchange pure environment path for allowing the coolant that cools the compressor driver to circulate to the outdoor heat exchanger side. The cooling water valve may allow the cooling water cooling the compressor driving unit to selectively circulate along one of the refrigerant heating net environment path and the outdoor heat exchange pure environment path.
그리고, 상기 제어부는 상기 압축기구동부를 냉각시킨 냉각수가 냉방 운전시 상기 실외열교환순환경로를 따라 순환하고, 난방 운전시 상기 냉매가열순환경로를 따라 순환하도록 상기 냉각수밸브를 제어하는 것이 바람직하다.The controller may control the coolant valve to circulate along the outdoor heat exchange pure environment path during cooling operation and to cool along the refrigerant heating pure environment path during heating operation.
여기서, 상기 압축기로 유입되는 냉매의 과열도를 검출하는 과열도검출부를 더 포함하며; 상기 제어부는 상기 압축기구동부의 초기 구동시 상기 동력개폐부 및 상기 냉각수밸브가 폐쇄된 상태에서 상기 압축기구동부를 구동시킨 후, 상기 온도감지부에 의해 감지된 온도가 소정의 기준온도를 초과한 상태에서 상기 과열도검출부에 의해 검출된 과열도가 소정의 기준과열도를 초과하는 경우, 냉방 운전 또는 난방 운전에 대응하여 상기 냉각수밸브를 제어할 수 있다.Here, it further comprises an overheat detection unit for detecting the superheat degree of the refrigerant flowing into the compressor; The control unit drives the compressor driving unit in a state in which the power switching unit and the cooling water valve are closed during the initial driving of the compressor driving unit, and the temperature detected by the temperature sensing unit exceeds a predetermined reference temperature. When the superheat degree detected by the superheat degree detection unit exceeds a predetermined reference superheat degree, the cooling water valve may be controlled in response to a cooling operation or a heating operation.
그리고, 상기 동력전달부는 마그네틱 클러치를 포함하는 것이 바람직하다.In addition, the power transmission unit preferably includes a magnetic clutch.
이하에서는 첨부도면을 참조하여 본 발명에 대해 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 발명에 따른 공조기기는, 도 1에 도시된 바와 같이, 폐루프를 형성하도록 냉매관에 의해 순차적으로 연결된 압축기(6), 실외열교환부(2), 팽창밸브(7) 및 실내열교환부(1)를 포함한다. 냉매관 중 압축기(6)의 토출측과 팽창밸브(7)를 연결하는 냉매관은 압축기(6)에서 토출된 고압 냉매의 흐름을 안내하는 고압관이고, 팽창밸브(7)와 압축기(6)의 흡입측을 연결하는 냉매관은 팽창밸브(7)에 의해 팽창된 저압 냉매의 흐름을 안내하는 저압관이다.As shown in FIG. 1, the air conditioner according to the present invention includes a compressor 6, an outdoor heat exchanger 2, an expansion valve 7, and an indoor heat exchanger, which are sequentially connected by a refrigerant pipe to form a closed loop. It includes 1). The refrigerant pipe connecting the discharge side of the compressor 6 and the expansion valve 7 among the refrigerant pipes is a high pressure pipe guiding the flow of the high pressure refrigerant discharged from the compressor 6, and the expansion valve 7 and the compressor 6 of the refrigerant pipe. The refrigerant pipe connecting the suction side is a low pressure pipe for guiding the flow of the low pressure refrigerant expanded by the expansion valve (7).
저압관과 고압관은 사방밸브(10)에 의해 상호 교차된다. 사방밸브(10)는 냉매의 흐름을 절환함으로써, 본 발명에 따른 공조기기가 냉방과 난방을 선택적으로 수행하게 한다. 여기서, 난방 운전시에는 냉매가 도 1에 도시된 점선 화살표 방향, 즉, 압축기(6), 사방밸브(10), 실내열교환부(1), 팽창밸브(7), 실외열교환부(2), 사방밸브(10), 압축기(6)를 따라 순환하게 된다. 이에 따라, 난방 운전시의 고압관은 압축기(6)의 토출측, 사방밸브(10), 실내열교환부(1) 및 팽창밸브(7)를 연결하는 냉매관이 되며, 저압관은 팽창밸브(7), 실외열교환부(2), 사방밸브(10) 및 압축기(6)의 흡입측을 연결하는 냉매관이 된다. 반면, 냉방 운전시에는 냉매가, 도 1에 도시된 실선 화살표 방향, 즉, 압축기(6), 사방밸브(10), 실외열교환부(2), 팽창밸브(7), 실내열교환부(1), 사방밸브(10), 압축기(6)를 따라 순환한다. 이에 따라, 냉방 운전시의 고압관은 압축기(6)의 토출측, 사방밸브(10), 실외열교환부(2) 및 팽창밸브(7)를 연결하는 냉매관이 되고, 저압관은 팽창밸브(7), 실내열교환부(1), 사방밸브(10) 및 압축기(6)의 흡입측을 연결하는 냉매관이 된다.The low pressure pipe and the high pressure pipe cross each other by the four-way valve 10. The four-way valve 10 switches the flow of the refrigerant, thereby allowing the air conditioner according to the present invention to selectively perform cooling and heating. Here, in the heating operation, the refrigerant flows in the direction indicated by the dotted arrow shown in FIG. 1, that is, the compressor 6, the four-way valve 10, the indoor heat exchanger 1, the expansion valve 7, the outdoor heat exchanger 2, The four-way valve 10, the compressor 6 is circulated along. Accordingly, the high pressure pipe during the heating operation is a refrigerant pipe connecting the discharge side of the compressor 6, the four-way valve 10, the indoor heat exchanger 1, and the expansion valve 7, and the low pressure pipe is the expansion valve 7 ), And a refrigerant pipe connecting the intake side of the outdoor heat exchange unit 2, the four-way valve 10, and the compressor 6 to each other. On the other hand, during the cooling operation, the refrigerant is in the solid arrow direction shown in FIG. 1, that is, the compressor 6, the four-way valve 10, the outdoor heat exchanger 2, the expansion valve 7, and the indoor heat exchanger 1. Circulates along the four-way valve 10 and the compressor 6. Accordingly, the high pressure pipe during the cooling operation is a refrigerant pipe connecting the discharge side of the compressor 6, the four-way valve 10, the outdoor heat exchanger 2, and the expansion valve 7, and the low pressure pipe is the expansion valve 7 ) And a refrigerant pipe connecting the suction side of the indoor heat exchange unit 1, the four-way valve 10 and the compressor 6.
압축기(6)의 토출측과 사방밸브(10) 사이의 고압관 상에는 오일분리기(8)가 설치된다. 오일분리기(8)는 압축기(6)로부터 토출되는 냉매에 포함된 오일을 여과하여 다시 압축기(6)로 이동시킨다. 여기서, 오일은 압축기(6)의 구동시 윤활을 위해 사용된다.An oil separator 8 is provided on the high pressure pipe between the discharge side of the compressor 6 and the four-way valve 10. The oil separator 8 filters the oil contained in the refrigerant discharged from the compressor 6 and moves the oil separator 8 back to the compressor 6. Here, oil is used for lubrication when the compressor 6 is driven.
실외열교환부(2)는 실외에 설치되며, 냉매가 순환하는 실외열교환기(3)와, 후술할 압축기구동부(12)의 냉각수가 순환하는 냉각수방열기(4)와, 실외열교환기(3) 및 냉각수방열기(4)에 공기를 송풍하는 송풍팬(5)을 포함한다. 실내열교환부(1)는 냉방 또는 난방을 요하는 실내에 설치되며, 냉매의 순환시 실내의 공기와 열교환하여 냉방 또는 난방 기능을 수행한다.The outdoor heat exchanger 2 is installed outdoors, the outdoor heat exchanger 3 through which the refrigerant circulates, the cooling water radiator 4 through which the coolant of the compressor driver 12 to be described later circulates, the outdoor heat exchanger 3 and Blowing fan 5 for blowing air to the cooling water radiator (4). The indoor heat exchanger 1 is installed in a room requiring cooling or heating, and performs cooling or heating function by exchanging heat with indoor air during circulation of the refrigerant.
압축기(6)의 흡입측 저압관 상에는 어큐뮬레이터(9)가 설치된다. 어큐뮬레이터(9)는 압축기(6)로 액냉매의 유입을 억제하기 위해 설치된다.An accumulator 9 is provided on the suction side low pressure tube of the compressor 6. The accumulator 9 is provided to suppress the inflow of the liquid refrigerant to the compressor 6.
팽창밸브(7)는 실내열교환부(1)에 설치되는 실내팽창밸브(7a)와, 실외열교환부(2)에 근접하게 설치되는 실외팽창밸브(7b)를 포함할 수 있다. 여기서, 실내팽창밸브(7a)는 냉방시 실외열교환부(2)로부터 실내열교환부(1) 측으로 흐르는 냉매를 팽창시키고, 실외팽창밸브(7b)는 난방시 실내열교환부(1)로부터 실외열교환부(2) 측으로 흐르는 냉매를 팽창시키게 된다.The expansion valve 7 may include an indoor expansion valve 7a installed in the indoor heat exchanger 1 and an outdoor expansion valve 7b installed in proximity to the outdoor heat exchanger 2. Here, the indoor expansion valve (7a) expands the refrigerant flowing from the outdoor heat exchanger (2) to the indoor heat exchanger (1) side when cooling, and the outdoor expansion valve (7b) from the indoor heat exchanger (1) to the outdoor heat exchanger when heating. The refrigerant flowing to the side (2) is expanded.
한편, 본 발명에 따른 공조기기는 압축기(6)에 구동력을 공급하는 압축기구동부(12)을 포함한다. 본 발명에 따른 공조기기에는 가스에 의해 구동되는 가스엔진을 사용하는 GHP 방식이 적용된다. 여기서, 압축기구동부(12)의 구동시 발생하는 엔진폐열은 냉각수의 순환에 따라 냉각수에 전달된다.On the other hand, the air conditioner according to the present invention includes a compressor driving unit 12 for supplying a driving force to the compressor (6). In the air conditioner according to the present invention, a GHP method using a gas engine driven by a gas is applied. Here, the engine waste heat generated when the compressor driver 12 is driven is transferred to the coolant according to the circulation of the coolant.
또한, 본 발명에 따른 공조기기는 제어부(22)에 의해 제어되어, 압축기구동부(12)와 압축기(6) 사이의 동력 전달을 개페하는 동력개폐부(13)를 포함한다. 본 발명에서는 동력개폐부(13)는 압축기구동부(12)과 압축기(6)를 축이음하는 마그네틱 클러치인 것을 일 예로 한다.In addition, the air conditioner according to the present invention is controlled by the control unit 22, and includes a power switch 13 for opening and closing the power transmission between the compressor drive unit 12 and the compressor (6). In the present invention, the power opening and closing portion 13 is an example of a magnetic clutch for shaft coupling the compressor driving unit 12 and the compressor (6).
한편, 본 발명에 따른 공조기기는 압축기구동부(12)의 구동시 발생하는 엔진폐열을 제거 및/또는 활용하기 위한 냉각수 순환시스템을 포함한다. 냉각수순환시스템은 폐루프를 형성하는 냉각수관(23)과, 냉각수의 유동을 유도하는 냉각수펌프(19)를 포함한다. 냉각수펌프(19)에 의해 냉각수관(23)을 따라 흐르는 냉각수는 압축기구동부(12)에서 발생하는 엔진폐열을 흡수하여 압축기구동부(12)를 냉각시키게 되고, 압축기구동부(12)를 냉각시키기 위해 엔진폐열을 흡수한 냉각수는 가열된다.Meanwhile, the air conditioner according to the present invention includes a cooling water circulation system for removing and / or utilizing engine waste heat generated when the compressor driver 12 is driven. The cooling water circulation system includes a cooling water pipe 23 forming a closed loop, and a cooling water pump 19 for inducing the flow of cooling water. The coolant flowing along the coolant pipe 23 by the coolant pump 19 absorbs the engine waste heat generated by the compressor driver 12 to cool the compressor driver 12, and the engine to cool the compressor driver 12. The cooling water absorbing the waste heat is heated.
압축기구동부(12)을 냉각시킨 냉각수, 즉, 엔진폐열에 의해 가열된 냉각수는 서모스탯(14)을 통해 압축기구동부(12)으로 복귀하거나 냉각수밸브(15)로 흐르게 된다. 서모스탯(14)은 가열된 냉각수의 온도가 소정 온도 이하인 경우 냉각수가 압축기구동부(12)을 냉각시키도록 압축기구동부(12)으로 복귀시키고, 가열된 냉각수의 온도가 소정 온도를 초과하는 경우 냉각수가 냉각수밸브(15)로 흐르게 한다.Cooling water that cools the compressor driver 12, that is, the coolant heated by the engine waste heat, returns to the compressor driver 12 or flows to the coolant valve 15 through the thermostat 14. The thermostat 14 returns to the compressor driver 12 so that the coolant cools the compressor driver 12 when the temperature of the heated coolant is lower than or equal to a predetermined temperature. When the temperature of the heated coolant exceeds the predetermined temperature, the coolant Flow to the coolant valve (15).
냉각수밸브(15)는 제어부(22)의 제어에 따라 서모스탯(14)으로부터 유입되는 냉각수가 냉매가열부(11) 및 실외열교환부(2) 중 어느 일측에 선택적으로 흐르도록 개폐된다. 이하에서는, 실외열교환부(2) 측으로 흐르는 냉각수의 순환경로를 실외열교환순환경로라 하고, 냉매가열부(11) 측으로 흐르는 냉각수의 순환경로를 냉매가열순환경로한다.The coolant valve 15 is opened and closed to selectively flow the coolant flowing from the thermostat 14 under either of the coolant heating unit 11 and the outdoor heat exchanger 2 under the control of the controller 22. Hereinafter, the circulation path of the cooling water flowing to the outdoor heat exchange part 2 is called the outdoor heat exchange pure environment, and the circulation path of the cooling water flowing to the refrigerant heating part 11 is the refrigerant heating pure environment.
제어부(22)는 난방 운전시 서모스탯(14)으로부터 유입되는 냉각수가 냉매가열순환경로를 따라 냉매가열부(11)로 흐르도록 냉각수밸브(15)를 제어하고, 냉방 운전시 서모스탯(14)으로부터 유입되는 냉각수가 실외열교환순환경로를 따라 실외열교환부(2)의 냉각수방열기(4)에 공급되도록 냉각수밸브(15)를 제어한다. The control unit 22 controls the coolant valve 15 to allow the coolant flowing from the thermostat 14 to flow into the coolant heating unit 11 along the coolant heating environment path during the heating operation, and the thermostat 14 during the cooling operation. The coolant valve 15 is controlled to supply coolant from the coolant radiator 4 of the outdoor heat exchanger 2 along the outdoor heat exchange pure environment.
한편, 본 발명에 따른 공조기기는 압축기구동부(12)에 의해 가열된 냉각수의 온도를 감지하는 온도감지부(20)와, 압축기(6)로 흡입되는 냉매의 과열도를 검출하는 과열도검출부(21)를 더 포함한다. 여기서, 온도감지부(20)에 의해 감지된 냉각수의 온도에 대한 정보와, 과열도검출부(21)에 의해 검출된 냉매의 과열도에 대한 정보는 제어부(22)에 전달된다.On the other hand, the air conditioner according to the present invention is a temperature sensing unit 20 for detecting the temperature of the cooling water heated by the compressor driver 12, and the superheat detection unit for detecting the superheat degree of the refrigerant sucked into the compressor ( 21) is further included. Here, the information on the temperature of the coolant detected by the temperature sensor 20 and the information on the superheat of the refrigerant detected by the superheat detector 21 are transmitted to the controller 22.
도 1에서 미설명 참조번호 16은 냉각수가 저장된 냉각수탱크이고, 참조번호 17은 배기가스열교환부이고, 참조번호 18은 배기 머플러이다.In FIG. 1, reference numeral 16 denotes a coolant tank in which coolant is stored, reference numeral 17 denotes an exhaust gas heat exchanger, and reference numeral 18 denotes an exhaust muffler.
상기와 같은 구성에 의해 본 발명에 따른 공조기기의 냉방 운전시와 난방 운전시의 냉매 및 냉각수의 흐름을 설명하면 다음과 같다.Referring to the flow of the refrigerant and the cooling water during the cooling operation and the heating operation of the air conditioner according to the present invention as described above are as follows.
먼저, 냉방 운전시, 압축기(6)로 흡입된 냉매는 압축되어 고압관으로 토출된다. 여기서, 압축기(6)로부터 토출되는 고온, 고압의 냉매에 포함된 오일은 오일분리기(8)를 통과하면서 여과되어 다시 압축기(6)로 이동한다. 그리고, 압축기(6)로부터 토출된 냉매는 사방밸브(10)를 거쳐 실외열교환부(2)로 이동한다.First, during the cooling operation, the refrigerant sucked into the compressor 6 is compressed and discharged into the high pressure tube. Here, the oil contained in the high temperature and high pressure refrigerant discharged from the compressor 6 is filtered while passing through the oil separator 8 and moves back to the compressor 6. The refrigerant discharged from the compressor 6 then moves to the outdoor heat exchanger 2 via the four-way valve 10.
그런 다음, 사방밸브(10)를 통과한 냉매는 실외열교환기(3)에서 응축된 후 실내팽창밸브(7a)로 이동한다. 그리고, 실내팽창밸브(7a)를 통과하면서 저온, 저압 상태로 팽창된 냉매는 실외열교환부(2)로 이동하여 실내와 열교환함으로써, 냉방 기능을 수행하게 된다.Then, the refrigerant passing through the four-way valve 10 is condensed in the outdoor heat exchanger (3) and then moved to the indoor expansion valve (7a). In addition, the refrigerant expanded in the low temperature and low pressure state while passing through the indoor expansion valve 7a moves to the outdoor heat exchanger 2 to exchange heat with the room, thereby performing a cooling function.
그런 다음, 실내열교환부(1)를 통과한 냉매는 다시 사방밸브(10), 어큐뮬레이터(9)를 거쳐 다시 압축기(6)로 유입된다.Then, the refrigerant having passed through the indoor heat exchanger 1 again flows into the compressor 6 via the four-way valve 10 and the accumulator 9.
여기서, 냉방 운전시 압축기구동부(12)에서 발생한 엔진폐열은 냉각수에 흡입되어, 실외열교환부(2)의 냉각수방열기(4)를 통해 외부로 방열된다.Here, the engine waste heat generated by the compressor driver 12 during the cooling operation is sucked into the coolant, and radiated to the outside through the coolant radiator 4 of the outdoor heat exchanger 2.
한편, 난방 운전시, 압축기(6)로부터 토출된 냉매는 오일분리기, 사방밸브(10)를 거쳐 실내열교환부(1)에서 응축된다. 여기서, 실내열교환부(1)에서 냉매가 응축할 때 방열되는 열에 의해 난방 기능이 수행된다.On the other hand, during the heating operation, the refrigerant discharged from the compressor 6 is condensed in the indoor heat exchanger 1 via the oil separator and the four-way valve 10. Here, the heating function is performed by heat radiated when the refrigerant condenses in the indoor heat exchanger (1).
그런 다음, 실내열교환부(1)에서 응축된 냉매는 실외팽창밸브(7b)에 의해 팽창되어 실외열교환기(3)에 유입된다. 실외열교환기(3)를 통과한 냉매는 냉매가열부(11)를 지나게 되는데, 제어부(22)는 난방 운전시 압축기구동부(12)에 의해 가열된 냉각수가 냉매가열순환경로를 따라 순환하여 냉매가열부(11) 측으로 흐르도록 냉각수밸브(15)를 제어하므로, 냉매가열부(11)를 지나는 냉매는 냉매가열부(11)를 흐르는 가열된 냉각수로부터 열을 흡수하여 사방밸브(10)를 향하게 된다. 그리고, 사방밸브(10)를 통과한 냉매는 어큐뮬레이터(9)를 거쳐 압축기(6)에 유입된다.Then, the refrigerant condensed in the indoor heat exchanger 1 is expanded by the outdoor expansion valve 7b and flows into the outdoor heat exchanger 3. The refrigerant passing through the outdoor heat exchanger (3) passes through the refrigerant heating unit (11). The control unit (22) circulates the coolant heated by the compressor driver (12) during the heating operation along the refrigerant heating pure environment path, Since the cooling water valve 15 is controlled to flow toward the heat portion 11, the refrigerant passing through the refrigerant heating portion 11 absorbs heat from the heated cooling water flowing through the refrigerant heating portion 11 and faces the four-way valve 10. . The refrigerant passing through the four-way valve 10 flows into the compressor 6 through the accumulator 9.
한편, 본 발명에 따른 공조기기가 초기 구동할 때의 제어과정을, 도 3을 참조하여 설명하면 다음과 같다.Meanwhile, a control process when the air conditioner according to the present invention is initially driven will be described with reference to FIG. 3.
먼저, 냉방 또는 난방 기능이 선택되는 경우, 제어부(22)는 압축기구동부(12)을 구동시킨다(S10). 이때, 제어부(22)는 냉각수밸브(15)를 통과하는 냉각수가 실외열교환순환경로를 따라 순환하여 냉각수방열기(4) 측으로 흐르도록 냉각수밸브(15)를 제어하고, 팽창밸브(7)를 폐쇄된 상태로 유지시킨다. 또한, 압축기구동부(12)으로부터의 구동력이 압축기(6)에 전달되지 않도록 동력개폐부(13)를 폐쇄한다(S11). 이에 의해, 초기 구동시 압축기(6)로 냉매가 유입되는 것을 차단하여, 압축기로 유입될 냉매에 포함된 액냉매가 유입되는 것을 일차적으로 차단하게 된다.First, when the cooling or heating function is selected, the control unit 22 drives the compressor driving unit 12 (S10). At this time, the controller 22 controls the coolant valve 15 so that the coolant passing through the coolant valve 15 circulates along the outdoor heat exchange pure environment path and flows to the coolant radiator 4 side, and closes the expansion valve 7. Keep it in the state. In addition, the power switching unit 13 is closed so that the driving force from the compressor driving unit 12 is not transmitted to the compressor 6 (S11). As a result, the refrigerant is prevented from flowing into the compressor 6 during the initial driving, thereby primarily preventing the liquid refrigerant contained in the refrigerant to be introduced into the compressor.
이 때, 온도감지부(20)는 압축기구동부(12)에 의해 가열된 냉각수의 온도를 감지하여 제어부(22)에 전달하고, 제어부(22)는 온도감지부(20)에 의해 감지된 냉각수의 온도가 소정의 기준온도를 초과하는 여부를 검사한다(S12).At this time, the temperature sensing unit 20 detects the temperature of the cooling water heated by the compressor driving unit 12 and transmits it to the control unit 22, and the control unit 22 of the cooling water detected by the temperature sensing unit 20 It is checked whether the temperature exceeds a predetermined reference temperature (S12).
그런 다음, 제어부(22)는 온도감지부(20)에 의해 감지된 냉각수의 온도가 기준온도를 초과할 때, 냉각수밸브(15)를 통과하는 냉각수가 냉매가열순환경로를 따라 냉매가열부(11) 측으로 흐르도록 냉각수밸브(15)를 제어한다(S13). 이에 의해, 냉매가열부(11) 측으로 흐르는 가열된 냉각수에 의해 냉매가열부(11)를 통과하는 냉매가 가열됨으로써, 냉매 중에 존재하는 액냉매를 제거할 수 있게 된다.Then, when the temperature of the coolant sensed by the temperature sensing unit 20 exceeds the reference temperature, the controller 22, the coolant passing through the coolant valve 15 along the coolant heating pure environment path along the coolant heating unit 11 The cooling water valve 15 is controlled to flow to the side (S13). As a result, the refrigerant passing through the refrigerant heating unit 11 is heated by the heated cooling water flowing toward the refrigerant heating unit 11, whereby the liquid refrigerant present in the refrigerant can be removed.
그리고, 제어부(22)는 온도감지부(20)에 의해 감지된 냉각수의 온도가 기준온도를 초과할 때, 압축기구동부(12)으로부터의 구동력이 압축기(6)에 전달되도록 동력개폐부(13)를 개방함으로써(S14), 압축기(6)를 구동시킨다. 여기서, 압축기(6)의 구동은 도 4에 도시된 바와 같이, 냉각수밸브(15)의 제어 후 일정 시간이 경과된 후 구동되는 것이, 액냉매의 유입을 최소화시키는데 바람직하다. 도 4의 (a)는 압축기구동부(12), (b)는 압축기(6), (c)는 냉각수밸브(15)의 구동시간을 도시한 도면이고, (c)의 B 영역은 가열된 냉각수가 냉매가열순환경로를 따라 냉매가열부(11)로 향하는 영역이고, A 영역은 가열된 냉각수가 실외열교환순환경로를 따라 실외열교환부(2)로 향하는 영역을 나타낸 것이다. 즉, 도 4의 (c)는 공조기기가 냉방 운전시의 초기 구동인 것을 일 예로 한 것이며, 공조기기가 난방 운전하는 경우 A 영역은 B 영역과 동일한 상태로 유지된다.In addition, the controller 22 controls the power switch 13 so that the driving force from the compressor driver 12 is transmitted to the compressor 6 when the temperature of the coolant detected by the temperature sensor 20 exceeds the reference temperature. By opening (S14), the compressor 6 is driven. Here, the driving of the compressor 6 is preferably driven after a predetermined time has passed after the control of the cooling water valve 15, as shown in FIG. 4, to minimize the inflow of the liquid refrigerant. 4A is a view showing the driving time of the compressor driving unit 12, (b) the compressor 6, and (c) the cooling water valve 15, and region B of (c) is the heated cooling water. Is a region directed toward the refrigerant heating unit 11 along the refrigerant heating pure environment path, and area A represents a region in which the heated cooling water is directed to the outdoor heat exchange unit 2 along the outdoor heat exchange pure environment path. That is, (c) of FIG. 4 is an example in which the air conditioner is the initial driving during the cooling operation, and in the case where the air conditioner is heating, the area A is maintained in the same state as the area B.
또한, 제어부(22)는 온도감지부(20)에 의해 감지된 냉각수의 온도가 기준온도를 초과할 때, 팽창밸브(7)를 개방함으로써(S15), 압축기(6)로 냉매가 유입되도록 한다.In addition, the controller 22 allows the refrigerant to flow into the compressor 6 by opening the expansion valve 7 when the temperature of the coolant sensed by the temperature sensing unit 20 exceeds the reference temperature (S15). .
그런 다음, 제어부(22)는 과열도검출부(21)에 의해 검출된 냉매의 과열도가 소정의 기준과열도를 초과하는지 여부를 판단한다(S16). 여기서, 제어부(22)는 과열도검출부(21)에 의해 검출된 과열도가 기준과열도를 초과하는 경우, 냉각수밸브(15)를 정상 동작시킨다(S17). 즉, 제어부(22)는 전술한 바와 같이, 난방 운전이나 냉방 운전에 따라 냉각수밸브(15)를 제어하게 된다.Then, the control unit 22 determines whether the superheat degree of the refrigerant detected by the superheat degree detecting unit 21 exceeds a predetermined reference superheat degree (S16). Here, when the superheat degree detected by the superheat degree detecting unit 21 exceeds the reference superheat degree, the control unit 22 operates the cooling water valve 15 normally (S17). That is, the controller 22 controls the cooling water valve 15 in accordance with the heating operation or the cooling operation as described above.
전술한 실시예에서는, 제어부(22)가 압축기구동부(12)의 초기 구동시 온도감지부(20)에 의해 감지된 온도에 기초하여 냉각수밸브(15) 및 동력개폐부(13)를 제어하였으나, 압축기구동부(12)의 초기 구동시 소정 시간이 경과된 후 냉각수밸브(15)를 개방하고 동력개폐부(13)를 개방하도록 마련될 수 있음은 물론이다.In the above-described embodiment, the control unit 22 controls the coolant valve 15 and the power opening and closing unit 13 based on the temperature sensed by the temperature sensing unit 20 during the initial driving of the compressor driving unit 12. After the predetermined time has elapsed during the initial driving of the driving unit 12, the cooling water valve 15 may be opened and the power switching unit 13 may be opened.
이와 같이, 압축기구동부(12)와 압축기(6) 사이의 동력 전달을 개폐하는 동력개폐부(13)와, 압축기구동부(12)를 냉각시키기 위한 냉각수가 순환하며 압축기구동부(12)를 냉각시킨 냉각수에 의해 압축기(6)로 유입되는 냉매를 가열하기 위한 냉매가열순환경로를 형성하는 냉각수관(23)과, 냉각수관(23)의 냉매가열순환경로 상에 마련되어 압축기구동부(12)를 냉각시킨 냉각수에 의해 압축기(6)로 유입되는 냉매가 가열되는 냉매가열부(11)와, 압축기구동부(12)를 냉각시킨 냉각수가 냉매가열순환경로를 따라 순환하는 것을 개폐하는 냉각수밸브(15), 압축기구동부(12)의 초기 구동시 동력개폐부(13) 및 냉각수밸브(15)가 폐쇄된 상태에서 압축기구동부(12)를 구동시킨 후 소정 시간 경과 후 동력개폐부(13) 및 냉각수밸브(15)를 개방하는 제어부(22)를 마련함으로써, 초기 구동시 압축기(6)로 액냉매의 유입을 최소화시킬 수 있다.In this way, the power opening and closing 13 for opening and closing the power transmission between the compressor driving unit 12 and the compressor 6, and the cooling water for cooling the compressor driving unit 12 is circulated to the cooling water cooling the compressor driving unit 12 The cooling water pipe 23 for forming a refrigerant heating pure environment path for heating the refrigerant flowing into the compressor 6 by the cooling water, and the cooling water provided on the refrigerant heating pure environment path of the cooling water pipe 23 to cool the compressor driving unit 12. The refrigerant heating unit 11, which cools the refrigerant flowing into the compressor 6, is heated, and the cooling water valve 15 and the compressor driving unit for opening and closing the cooling water that has cooled the compressor driving unit 12 circulate along the refrigerant heating circulation path. Control unit for opening the power switch 13 and the coolant valve 15 after a predetermined time after driving the compressor drive unit 12 in a state in which the power switch 13 and the coolant valve 15 is closed during the initial drive of 12) By providing 22, the initial Simultaneously compressor 6 can minimize the inflow of the liquid refrigerant.
또한, 초기 구동시 압축기(6)로 액냉매가 유입되는 것을 방지하기 위해 어큐뮬레이터(9)의 용량을 크게 할 필요가 없어, 제조단가를 감소시킬 수 있게 된다.In addition, it is not necessary to increase the capacity of the accumulator 9 in order to prevent the liquid refrigerant from flowing into the compressor 6 during the initial operation, thereby reducing the manufacturing cost.
이상 설명한 바와 같이, 본 발명에 따르면, 제조단가를 감소시키면서도, 초기 구동시 압축기로 액냉매의 유입을 최소화시킬 수 있는 공조기기가 제공된다.As described above, according to the present invention, there is provided an air conditioner capable of minimizing the introduction of liquid refrigerant into the compressor during initial operation while reducing the manufacturing cost.
도 1은 본 발명에 따른 공조기기의 구성을 도시한 도면이고,1 is a view showing the configuration of an air conditioner according to the present invention,
도 2는 본 발명에 따른 공조기기의 제어블럭도이고,2 is a control block diagram of an air conditioner according to the present invention;
도 3은 본 발명에 따른 공조기기의 제어흐름도이고,3 is a control flow chart of an air conditioner according to the present invention,
도 4는 본 발명에 따른 공조기기의 압축기구동부, 압축기 및 냉각수밸브의 구동시간을 도시한 도면이다.4 is a view showing the driving time of the compressor driving unit, the compressor and the coolant valve of the air conditioner according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
1 : 실내열교환부 2 : 실외열교환부1: indoor heat exchanger 2: outdoor heat exchanger
3 : 실외열교환기 4 : 냉각수방열기3: outdoor heat exchanger 4: cooling water radiator
5 : 송풍팬 6 : 압축기5: blowing fan 6: compressor
7 : 팽창밸브 8 : 오일분리기7: expansion valve 8: oil separator
9 : 어큐뮬레이터 10 : 사방밸브9: accumulator 10: four-way valve
11 : 냉매가열부 12 : 압축기구동부11: refrigerant heating unit 12: compressor driving unit
13 : 동력개폐부 14 : 서모스탯13: power opening and closing part 14: thermostat
15 : 냉각수밸브 16 : 냉각수탱크15: cooling water valve 16: cooling water tank
17 : 배기가스열교환부 18 : 배기 머플러17: exhaust gas heat exchanger 18: exhaust muffler
19 : 냉각수펌프 20 : 온도감지부19: cooling water pump 20: temperature sensing unit
21 : 과열도검출부 22 : 제어부21: superheat detection unit 22: control unit
Claims (8)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040002691A KR100558392B1 (en) | 2004-01-14 | 2004-01-14 | Air conditioner |
| CNB2004100351146A CN1325848C (en) | 2004-01-14 | 2004-04-23 | Air conditioner |
| JP2005008360A JP3798418B2 (en) | 2004-01-14 | 2005-01-14 | air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040002691A KR100558392B1 (en) | 2004-01-14 | 2004-01-14 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20050074796A true KR20050074796A (en) | 2005-07-19 |
| KR100558392B1 KR100558392B1 (en) | 2006-03-10 |
Family
ID=34825026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020040002691A KR100558392B1 (en) | 2004-01-14 | 2004-01-14 | Air conditioner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3798418B2 (en) |
| KR (1) | KR100558392B1 (en) |
| CN (1) | CN1325848C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101105518B1 (en) * | 2011-05-17 | 2012-01-13 | 유종이 | A cooling system for energy saving green environment of four season |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758070B (en) * | 2016-02-29 | 2018-01-23 | 珠海格力电器股份有限公司 | Air conditioning system and heat dissipation method of compressor driving plate |
| KR102407648B1 (en) * | 2020-09-07 | 2022-06-10 | 엘지전자 주식회사 | Air Conditioner |
| KR102405709B1 (en) * | 2020-09-07 | 2022-06-03 | 엘지전자 주식회사 | Air Conditioner |
| KR102409975B1 (en) * | 2020-09-07 | 2022-06-15 | 엘지전자 주식회사 | Air Conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4996235A (en) * | 1987-11-25 | 1991-02-26 | Eli Lilly And Company | 3,4-diphenylbutanamines |
| JPH04222360A (en) * | 1990-12-25 | 1992-08-12 | Mitsubishi Heavy Ind Ltd | Heat pump type air conditioner |
| JP3009481B2 (en) * | 1990-12-26 | 2000-02-14 | 三菱重工業株式会社 | Heat pump type air conditioner |
| JPH0861748A (en) * | 1994-08-26 | 1996-03-08 | Noritz Corp | Operation controlling method for air conditioner |
-
2004
- 2004-01-14 KR KR1020040002691A patent/KR100558392B1/en not_active IP Right Cessation
- 2004-04-23 CN CNB2004100351146A patent/CN1325848C/en not_active Expired - Fee Related
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2005
- 2005-01-14 JP JP2005008360A patent/JP3798418B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101105518B1 (en) * | 2011-05-17 | 2012-01-13 | 유종이 | A cooling system for energy saving green environment of four season |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1641276A (en) | 2005-07-20 |
| CN1325848C (en) | 2007-07-11 |
| KR100558392B1 (en) | 2006-03-10 |
| JP2005201631A (en) | 2005-07-28 |
| JP3798418B2 (en) | 2006-07-19 |
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