KR20020070973A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- KR20020070973A KR20020070973A KR1020027005192A KR20027005192A KR20020070973A KR 20020070973 A KR20020070973 A KR 20020070973A KR 1020027005192 A KR1020027005192 A KR 1020027005192A KR 20027005192 A KR20027005192 A KR 20027005192A KR 20020070973 A KR20020070973 A KR 20020070973A
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- South Korea
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- heat exchanger
- temperature
- indoor
- air conditioner
- air
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- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000010981 drying operation Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims description 9
- 238000004378 air conditioning Methods 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000003303 reheating Methods 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 23
- 238000007791 dehumidification Methods 0.000 abstract description 21
- 238000010438 heat treatment Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
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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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0234—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0234—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements
- F25B2313/02341—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements during cooling
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0234—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements
- F25B2313/02343—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements during dehumidification
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0234—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements
- F25B2313/02344—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in series arrangements during heating
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0254—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in series 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/02—Humidity
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Drying Of Solid Materials (AREA)
Abstract
공기조절장치(1)는 직렬로 접속된 제 1 열교환기(10)와 제 2 열교환기(11)로 이루어지는 실내 열교환기(5)와, 상기 각 열교환기(10, 11) 사이에 설치된 감압기구 (12)를 가지고 있다. 압축기(2)로부터의 냉매를 실외 열교환기(3), 감압기구(4), 실내 열교환기(5)의 순으로 순환시킴과 동시에, 제 1 열교환기(10)를 응축기로서, 또 제 2 열교환기(11)를 증발기로서 각각 기능시켜 실내공기를 냉각하여 제습한 후에 다시 가열하여 실내로 되돌리는 재열 건조운전을 행한다. 이때 제어수단(13)에 의하여 증발기로서 기능하는 제 2 열교환기(11)의 온도를 제어한다. 이에 의하여 실내를 난방으로 하면서 제습을 행하는 경우에 있어서도 증발기의 온도를 제어함으로써 제습량을 높여 재열 건조운전을 확실하게 행할 수 있다.The air conditioner 1 includes an indoor heat exchanger 5 including a first heat exchanger 10 and a second heat exchanger 11 connected in series, and a pressure reducing mechanism provided between the heat exchangers 10 and 11. Has 12. The refrigerant from the compressor (2) is circulated in the order of the outdoor heat exchanger (3), the pressure reducing mechanism (4), and the indoor heat exchanger (5), and the first heat exchanger (10) is used as the condenser and the second heat exchanger. Each of the groups 11 functions as an evaporator to perform a reheat drying operation in which the indoor air is cooled, dehumidified, heated again, and returned to the room. At this time, the control means 13 controls the temperature of the second heat exchanger 11 functioning as an evaporator. Thereby, even when dehumidification is carried out while the room is heated, by controlling the temperature of the evaporator, the amount of dehumidification can be increased to reliably perform the reheat drying operation.
Description
재열 건조운전이 가능한 공기조절장치로서는, 일반적으로 도 1에 나타내는 바와 같은 냉매회로를 가지는 것이 알려져 있다. 이 공기조절장치(1)는 압축기(2), 실외 열교환기(3), 감압기구(4), 실내 열교환기(5)를 구비하는 히트펌프식의 공기조절장치로서, 압축기(2)로부터의 냉매가 순환되도록 냉매회로가 구성되어 있다. 압축기(2)의 토출측과 흡입측은 각각 4방향 전환밸브(6)의 1차 포트에 접속되어 있다. 그리고 4방향 전환밸브(6)의 2차 포트의 한쪽으로부터 실외팬(7)을 부설하고 있는 실외 열교환기(3), 감압기구(4), 실내팬(8)을 부설하고 있는 실내 열교환기(5)를 각각 경유하여 4방향 전환밸브(6)의 다른쪽의 2차 포트에 이르는 냉매회로가 냉매배관에 의하여 구성되어 있다. 또한 4방향 전환밸브(6)로부터는 어큐뮬레이터(9)를 거쳐 압축기(2)의 흡입측으로 되돌아가도록 되어 있다. 또 실내 열교환기(5)는 직렬로 접속된 제 1 열교환기(10)와 제 2 열교환기(11)로 이루어지고, 상기 각 열교환기(10, 11) 사이에는 감압기구(12)가 설치되어 있다.As an air conditioner capable of reheat drying operation, it is generally known to have a refrigerant circuit as shown in FIG. 1. This air conditioner (1) is a heat pump type air conditioner including a compressor (2), an outdoor heat exchanger (3), a pressure reducing mechanism (4), and an indoor heat exchanger (5). The refrigerant circuit is configured to circulate the refrigerant. The discharge side and the suction side of the compressor 2 are connected to the primary port of the four-way selector valve 6, respectively. And an indoor heat exchanger (3), a pressure reducing mechanism (4), an indoor fan (8), which installs the outdoor fan (7) from one side of the secondary port of the four-way selector valve (6) ( The refrigerant circuit which reaches to the other secondary port of the 4-way selector valve 6 via 5) is comprised by the refrigerant piping. In addition, the four-way switching valve 6 returns to the suction side of the compressor 2 via the accumulator 9. In addition, the indoor heat exchanger (5) comprises a first heat exchanger (10) and a second heat exchanger (11) connected in series, and a pressure reducing mechanism (12) is provided between the heat exchangers (10, 11). have.
상기 냉매회로에 의한 공기조절운전의 종류에는 냉방운전, 난방운전, 재열 건조운전 등이 있다. 냉방운전 및 난방운전시에는 실내 열교환기(5)의감압기구(12)를 완전 개방상태로 하는 한편, 감압기구(4)를 소정의 개방도로 조정하고, 다시 실외팬 (7) 및 실내팬(8)을 소정의 회전수로 구동한다. 그리고 냉방운전의 경우는 압축기(2)로부터의 토출냉매를 실선 화살표로 나타내는 바와 같이 순환시킴으로써 실외 열교환기(3)를 응축기로서 기능시킴과 동시에, 실내 열교환기(5)를 증발기로서 기능시킴으로써 실내공기가 냉각된다. 또 난방운전의 경우는 압축기(2)로부터의 토출냉매를 파선 화살표로 나타내는 바와 같이 순환시킴으로써 실내 열교환기(5)를 응축기로서 기능시킴과 동시에, 실외 열교환기(3)를 증발기로서 기능시킴으로써 실내공기가 가열된다.The air conditioning operation by the refrigerant circuit includes a cooling operation, a heating operation, a reheat drying operation, and the like. During the cooling and heating operation, the pressure reducing mechanism 12 of the indoor heat exchanger 5 is completely opened, while the pressure reducing mechanism 4 is adjusted to a predetermined opening degree, and the outdoor fan 7 and the indoor fan ( 8) is driven at a predetermined rotational speed. In the case of the cooling operation, the outdoor heat exchanger 3 functions as a condenser while circulating the discharged refrigerant from the compressor 2 as indicated by a solid arrow, and the indoor air exchanger 5 functions as an evaporator. Is cooled. In the heating operation, the refrigerant discharged from the compressor 2 is circulated as indicated by the broken arrow to make the indoor heat exchanger 5 function as a condenser and the outdoor heat exchanger 3 as an evaporator. Is heated.
한편 재열 건조운전시에는 실내 열교환기(5)의 감압기구(12)를 소정의 개방도로 조정하는 한편, 감압기구(4)를 완전 개방상태로 하고, 또한 실내팬(8)을 소정의 회전수로 구동하는 한편, 실외팬(7)을 정지상태로 한다. 그리고 압축기(2)로부터의 토출냉매를 실선 화살표로 나타내는 바와 같이 냉방사이클을 가지고 순환시킴으로써 실내 열교환기(5)의 제 1 열교환기(10)를 응축기로서 기능시킴과 동시에, 제 2 열교환기(11)를 증발기로서 기능시킨다. 이에 의하여 실내공기를 증발기로서 기능하는 제 2 열교환기(11)에서 냉각하여 제습한 후에 응축기로서 기능하는 제 1 열교환기 (10)에서 다시 가열하여 실내로 되돌리는 재열 건조운전이 행하여진다.On the other hand, during the reheat drying operation, the pressure reducing mechanism 12 of the indoor heat exchanger 5 is adjusted to a predetermined opening degree, the pressure reducing mechanism 4 is fully opened, and the indoor fan 8 is rotated at a predetermined rotation speed. Drive while the outdoor fan 7 is stopped. Then, the discharged refrigerant from the compressor 2 is circulated with a cooling cycle as indicated by the solid arrows, thereby making the first heat exchanger 10 of the indoor heat exchanger 5 function as a condenser, and at the same time, the second heat exchanger 11 ) As an evaporator. As a result, a reheat drying operation is performed in which the indoor air is cooled and dehumidified in the second heat exchanger 11 functioning as an evaporator, and then heated again in the first heat exchanger 10 functioning as a condenser to return to the room.
상기 재열 건조운전에서는 실내기에 응축기로서의 기능을 구비한 제 1 열교환기(10)와, 증발기로서의 기능을 구비한 제 2 열교환기(11)를 가지고 있기 때문에 실내온도를 거의 일정하게 유지한 채 습기를 제거하는 것이 가능하다. 그러나 추운 계절 등에 있어서 실내를 난방으로 하면서 제습을 행하고 싶은 경우에는 응축기인 제 1 열교환기(10)에 있어서의 응축온도를 높게 할 필요가 있으나, 상기 응축온도가 높아지 도록 제어하면, 이에 따라 증발온도도 높아져 버린다. 그리고 이와 같이 상기 제 2 열교환기(11)의 증발온도가 높아지면 실내공기의 노점온도와의 차가 작아지기 때문에 제습량이 극단적으로 감소하여 버린다는 문제가 생긴다.In the reheat drying operation, since the indoor unit has a first heat exchanger 10 having a function as a condenser and a second heat exchanger 11 having a function as an evaporator, moisture is maintained while keeping the room temperature almost constant. It is possible to remove. However, when dehumidification is to be performed while the room is heated in a cold season or the like, it is necessary to increase the condensation temperature in the first heat exchanger 10 as a condenser. Will also rise. In this way, when the evaporation temperature of the second heat exchanger 11 increases, the difference between the dew point temperature of the indoor air decreases and the amount of dehumidification is extremely reduced.
본 발명은 상기 종래의 단점을 해결하기 위하여 이루어진 것으로, 그 목적은 실내를 난방으로하면서 제습을 행하는 경우에 있어서도 증발기의 온도를 제어함으로써 제습량을 높여 재열 건조운전을 확실하게 행할 수 있는 공기조절장치를 제공하는 것에 있다.The present invention has been made to solve the above disadvantages, the object of the present invention is to control the temperature of the evaporator even in the case of performing dehumidification while heating the room by increasing the dehumidification amount of air conditioning apparatus that can reliably perform the reheat drying operation Is to provide.
본 발명은 재열 건조운전이 가능한 공기조절장치에 관한 것이다.The present invention relates to an air conditioner capable of a reheat drying operation.
도 1은 본 발명의 일 실시형태인 공기조절장치의 구성을 나타내는 냉매회로도,1 is a refrigerant circuit diagram showing a configuration of an air conditioner according to an embodiment of the present invention;
도 2는 상기 공기조절장치의 일 실시형태를 나타내는 실내기의 종단면도,2 is a longitudinal sectional view of an indoor unit showing an embodiment of the air conditioner;
도 3은 상기 공기조절장치의 다른 실시형태를 나타내는 실내기의 종단면도,3 is a longitudinal sectional view of an indoor unit showing another embodiment of the air conditioner;
도 4는 상기 공기조절장치의 실내기의 사시도,4 is a perspective view of an indoor unit of the air conditioner;
도 5는 상기 공기조절장치의 제어동작을 설명하기 위한 플로우차트이다.5 is a flowchart for explaining a control operation of the air conditioner.
본 발명의 공기조절장치는 직렬로 접속된 제 1 열교환기(10)와 제 2 열교환기 (11)로 이루어지는 실내 열교환기(5)와, 상기 각 열교환기(10, 11) 사이에 설치된 감압기구(12)를 가지는 공기조절장치로서, 상기 제 1 열교환기(10)를 응축기로서 기능시키는 한편, 제 2 열교환기(11)를 증발기로서 기능시켜 실내공기를 냉각하여 제습한 후에 다시 가열하여 실내로 되돌리는 재열 건조운전이 가능한 공기조절장치에 있어서, 상기 재열 건조운전시에 증발기로서 기능하는 제 2 열교환기(11)의 온도를 제어하는 제어수단(13)을 설치한 것을 특징으로 하고 있다.The air conditioner according to the present invention includes an indoor heat exchanger (5) comprising a first heat exchanger (10) and a second heat exchanger (11) connected in series, and a pressure reducing mechanism provided between the heat exchangers (10, 11). An air conditioner having a (12), wherein the first heat exchanger (10) functions as a condenser, while the second heat exchanger (11) functions as an evaporator to cool indoor air, dehumidify and heat it again to the interior. An air conditioner capable of a reheat drying operation to be returned is characterized in that a control means (13) for controlling the temperature of the second heat exchanger (11) functioning as an evaporator during the reheat drying operation is provided.
이 공기조절장치에서는 실내기에 증발기로서 기능하는 제 2 열교환기(11)의 온도를 제어하는 제어수단(13)을 설치하고 있다. 이에 의하여 실내를 난방으로 하면서 재열 건조운전을 행하는 경우에 있어서, 응축기로서 기능하는 제 1 열교환기 (10)의 응축온도를 상승시켜도 상기 제어수단(13)을 사용하여 제 2 열교환기(11)의온도를 저하시키거나, 또는 온도상승을 억제할 수 있으므로 제습량을 감소시키는 일 없이 확실하게 재열 건조운전을 실행할 수 있다. 그 결과 사용자가 요구하는 실내환경을 실현할 수 있어 쾌적성이 향상한다. 또 이와 같이 제 2 열교환기(11)의 온도를 제어하면 통상의 재열 건조운전시에 있어서도 확실한 제습효과를 얻을 수 있다는 이점이 있다.In this air conditioner, the control unit 13 which controls the temperature of the 2nd heat exchanger 11 which functions as an evaporator in the indoor unit is provided. As a result, in the case where the reheat drying operation is performed while the room is heated, even if the condensation temperature of the first heat exchanger 10 functioning as a condenser is increased, the second heat exchanger 11 is used by the control means 13. Since the temperature can be reduced or the temperature rise can be suppressed, the reheat drying operation can be reliably performed without reducing the amount of dehumidification. As a result, the indoor environment required by the user can be realized, and the comfort is improved. In addition, by controlling the temperature of the second heat exchanger 11 in this manner, there is an advantage that a dehumidifying effect can be secured even in a normal reheat drying operation.
또 일 실시형태의 공기조절장치는, 실내온도센서(27)와, 습도센서(28)를 설치하여 상기 각 센서(27, 28)에 의해 측정된 온도와 습도로부터 노점온도를 구함과 동시에, 상기 노점온도로부터 제 2 열교환기(11)의 온도제어를 행하는 것을 특징으로 하고 있다.An air conditioner according to one embodiment is provided with an indoor temperature sensor 27 and a humidity sensor 28 to obtain dew point temperatures from the temperatures and humidity measured by the sensors 27 and 28, and The temperature control of the second heat exchanger 11 is performed from the dew point temperature.
이 공기조절장치에서는 실내온도센서(27)와 습도센서(28)를 설치함으로써 실내의 온도와 습도를 측정하고, 이 측정결과로부터 구한 노점온도로부터 제 2 열교환기(11)의 온도를 상기 제어수단(13)을 사용하여 제어한다. 그 결과 정밀도가 좋은 제습제어가 행하여진다. 그 결과 사용자가 요구하는 실내환경에 따른 재열 건조운전을 한층 더 확실하게 행하는 것이 가능하게 된다.In this air conditioner, the indoor temperature sensor 27 and the humidity sensor 28 are installed to measure the temperature and humidity of the room, and the temperature of the second heat exchanger 11 is determined from the dew point temperature obtained from the measurement result. Control using (13). As a result, the dehumidification control with high precision is performed. As a result, it is possible to more reliably perform the reheat drying operation according to the indoor environment required by the user.
또한 일 실시형태의 공기조절장치는, 상기 제어수단(13)은 제 2 열교환기 (11)에의 풍량을 제어하는 풍량제어수단을 포함하는 것을 특징으로 하고 있다.Moreover, the air conditioner of one Embodiment is characterized in that the said control means 13 includes the air volume control means which controls the air volume to the 2nd heat exchanger 11.
이 공기조절장치에서는 풍량제어수단을 사용하여 통과풍량을 감소시킴으로써 제 2 열교환기(11)의 온도를 제어할 수 있다. 그 결과, 간소한 구성을 가지고 확실하게 제습량을 높일 수 있다.In this air conditioner, the temperature of the second heat exchanger 11 can be controlled by reducing the amount of passing air using the air volume control means. As a result, the dehumidification amount can be surely increased with a simple configuration.
또 일 실시형태의 공기조절장치는, 상기 제어수단(13)은 상기 감압기구(12)를 개방도 가변으로 구성하여 이루어지는 압력제어수단을 포함하는 것을 특징으로 하고 있다.Moreover, the air conditioner of one Embodiment is characterized in that the said control means 13 includes the pressure control means which comprises the said decompression mechanism 12 by variable opening degree.
이 공기조절장치에서는 상기 압력제어수단을 사용하여 상기 제 2 열교환기 (11)에의 감압량을 제어함으로써, 제 2 열교환기(11)의 온도를 제어할 수 있다. 그 결과, 간소한 구성을 가지고 확실하게 제습량을 높일 수 있다.In this air conditioner, the temperature of the second heat exchanger 11 can be controlled by controlling the depressurization amount to the second heat exchanger 11 using the pressure control means. As a result, the dehumidification amount can be surely increased with a simple configuration.
다음에 본 발명의 공기조절장치의 구체적인 실시형태에 대하여 도면을 참조하면서 상세하게 설명한다.Next, the specific embodiment of the air conditioner of this invention is described in detail, referring drawings.
본 발명의 일 실시형태인 공기조절장치의 냉매회로는, 도 1에 나타낸 일반적인 공기조절장치(1)의 냉매회로와 기본적으로 동일하게 구성되어 있으나, 제어를 개량한 것이다. 즉 도 1에 나타내는 바와 같이 공조장치(1)는 압축기(2), 실외 열교환기(3), 감압기구(4), 실내 열교환기(5)를 구비하는 히트펌프식의 공조장치이고, 압축기(2)로부터의 냉매가 순환되도록 냉매회로가 구성되어 있다. 압축기(2)의 토출측과 흡입측은 각각 4방향 전환밸브(6)의 1차 포트에 접속되어 있다. 그리고 4방향 전환밸브(6)의 2차 포트의 한쪽으로부터 실외팬(7)을 부설하고 있는 실외 열교환기(3), 감압기구(4), 실내팬(8)을 부설하고 있는 실내 열교환기(5)를 각각 경유하여 4방향 전환밸브(6)의 다른쪽의 2차 포트에 이르는 냉매회로가 냉매배관에 의해 구성되어 있다. 또한 4방향 전환밸브(6)로부터는 어큐뮬레이터(9)를 거쳐 압축기(2)의 흡입측으로 되돌아가도록 되어 있다. 또 실내 열교환기(5)는 직렬로 접속된 제 1 열교환기(10)와 제 2 열교환기(11)로 이루어지고, 상기 각 열교환기(10, 11) 사이에는 감압기구(12)가 설치되어 있다.The refrigerant circuit of the air conditioner according to the embodiment of the present invention is basically the same as the refrigerant circuit of the general air conditioner 1 shown in FIG. 1, but improves control. That is, as shown in FIG. 1, the air conditioner 1 is a heat pump type air conditioner including a compressor 2, an outdoor heat exchanger 3, a pressure reducing mechanism 4, and an indoor heat exchanger 5. A refrigerant circuit is configured to circulate the refrigerant from 2). The discharge side and the suction side of the compressor 2 are connected to the primary port of the four-way selector valve 6, respectively. And an indoor heat exchanger (3), a pressure reducing mechanism (4), an indoor fan (8), which installs the outdoor fan (7) from one side of the secondary port of the four-way selector valve (6) ( The refrigerant circuit which reaches to the other secondary port of the 4-way selector valve 6 via 5) is comprised by the refrigerant piping. In addition, the four-way switching valve 6 returns to the suction side of the compressor 2 via the accumulator 9. In addition, the indoor heat exchanger (5) comprises a first heat exchanger (10) and a second heat exchanger (11) connected in series, and a pressure reducing mechanism (12) is provided between the heat exchangers (10, 11). have.
이 공기조절장치(1)의 동작은 전체로서 도 4중에 나타내는 공기조절장치(1)의 실내기 본체(14)내에 설치된 제어기(13)에 의해 제어된다.The operation of this air conditioner 1 is controlled by the controller 13 provided in the indoor unit main body 14 of the air conditioner 1 shown in FIG. 4 as a whole.
상기 냉매회로에 의한 공기조절운전의 종류에는 냉방운전, 난방운전, 재열 건조운전 등이 있다. 상기 냉방운전 및 난방운전시에는 실내 열교환기(5)의 감압기구 (12)를 완전 개방상태로 하는 한편, 감압기구(4)를 소정의 개방도로 조정하고, 다시 실외팬(7) 및 실내팬(8)을 소정의 회전수로 구동한다. 그리고 냉방운전의 경우는 압축기(2)로부터의 토출냉매를 실선 화살표로 나타내는 바와 같이 순환시킴으로써 실외 열교환기(3)를 응축기로서 기능시킴과 동시에, 실내 열교환기(5)를 증발기로서 기능시킴으로써, 실내공기가 냉각된다. 또 난방운전의 경우는 압축기(2)로부터의 토출냉매를 파선 화살표로 나타내는 바와 같이 순환시킴으로써 실내 열교환기(5)를 응축기로서 기능시킴과 동시에, 실외 열교환기(3)를 증발기로서 기능시킴으로써, 실내공기가 가열된다.The air conditioning operation by the refrigerant circuit includes a cooling operation, a heating operation, a reheat drying operation, and the like. During the cooling operation and the heating operation, the pressure reducing mechanism 12 of the indoor heat exchanger 5 is completely opened, while the pressure reducing mechanism 4 is adjusted to a predetermined opening degree, and the outdoor fan 7 and the indoor fan are again opened. (8) is driven at a predetermined rotational speed. In the case of the cooling operation, by circulating the discharged refrigerant from the compressor 2 as indicated by the solid arrows, the outdoor heat exchanger 3 functions as a condenser and the indoor heat exchanger 5 functions as an evaporator. The air is cooled In the heating operation, the discharge refrigerant from the compressor 2 is circulated as indicated by the broken arrow to make the indoor heat exchanger 5 function as a condenser, and the outdoor heat exchanger 3 as an evaporator, thereby to indoors. The air is heated.
한편 재열 건조운전시에는 실내 열교환기(5)의 감압기구(12)를 소정의 개방도로 조정하는 한편, 감압기구(4)를 완전 개방상태로 하고, 다시 실내팬(8)을 소정의 회전수로 구동하는 한편, 실외팬(7)을 정지상태로 한다. 그리고 압축기(2)로부터의 토출냉매를 실선 화살표로 나타내는 바와 같이 순환시킴으로써, 실내 열교환기(5)의 제 1 열교환기(10)를 응축기로서 기능시킴과 동시에, 제 2 열교환기(11)를 증발기로서 기능시킨다. 이에 의하여 실내공기를 증발기로서 기능하는 제 2 열교환기(11)에서 냉각하여 제습한 후에 다시 응축기로서 기능하는 제 1 열교환기(10)에서 가열하여 실내로 되돌리는 재열 건조운전이 행하여진다. 또한 재열 건조운전에서는 실외열교환기(3)도 응축기로서 기능할 수 있으나, 상기한 바와 같이 실외팬(7)을 정지상태로 함으로써, 실외 열교환기(3) 주위의 외기가 유통하지 않도록 하여 실외 열교환기(3)에서는 가능한 한 열교환이 행하여지지 않도록 하고 있다.On the other hand, during the reheat drying operation, the pressure reducing mechanism 12 of the indoor heat exchanger 5 is adjusted to a predetermined opening degree, the pressure reducing mechanism 4 is completely opened, and the indoor fan 8 is rotated a predetermined number of times again. Drive while the outdoor fan 7 is stopped. By circulating the discharged refrigerant from the compressor 2 as indicated by the solid arrows, the first heat exchanger 10 of the indoor heat exchanger 5 functions as a condenser, and the second heat exchanger 11 is evaporated. Function as. As a result, a reheat drying operation is performed in which the indoor air is cooled and dehumidified in the second heat exchanger 11 functioning as an evaporator, and then heated in the first heat exchanger 10 functioning as a condenser and returned to the room. In addition, in the reheat drying operation, the outdoor heat exchanger 3 may also function as a condenser. However, by stopping the outdoor fan 7 as described above, the outdoor heat exchanger 3 prevents the outdoor air from flowing around the outdoor heat exchanger 3. In the machine 3, the heat exchange is prevented from being performed as much as possible.
그런데 상기 재열 건조운전시에 실내를 난방으로 하면서 제습을 행하는 경우, 응축기인 제 1 열교환기(10)에서의 응축온도를 높게 하여 충분히 열교환(가열)을 행할 필요가 있으나, 이에 따라 증발온도도 높아지기 때문에 제습량이 극단적으로 감소하여 버리는 경우가 있다. 이 때문에 도 4 중에 나타내는 제어기(13)가 제어수단으로서 작용하여 증발기로서 기능하는 제 2 열교환기(11)의 온도를 제어한다.However, when dehumidification is performed while the room is heated during the reheat drying operation, it is necessary to sufficiently heat exchange (heat) by increasing the condensation temperature in the first heat exchanger 10 which is a condenser. Therefore, the amount of dehumidification may decrease extremely. For this reason, the controller 13 shown in FIG. 4 acts as a control means, and controls the temperature of the 2nd heat exchanger 11 which functions as an evaporator.
이하에 그 구체적인 제어방법에 대하여 설명한다.The specific control method is explained below.
먼저 도 2에 상기 공기조절장치(1)의 일 실시형태를 나타내는 실내기의 종단면도를 나타낸다. 도면에 있어서 실내기의 케이싱(15)에는 그 천정면 패널(16)의 거의 전면에 격자형상의 천정면 흡입구(17)가 형성되고, 앞면패널(18)의 거의 전면에 격자형상의 앞면 흡입구(19)가 형성되어 있다. 또 상기 케이싱(15)내에 배치된 실내 열교환기(5)는 뒷면측 열교환기(10)(제 1 열교환기)와 앞면측 열교환기(11)(제 2 열교환기)로 분할되고, 이들을 역 V자형상으로 조합시켜 구성되어 있다. 또 역 V자형상의 실내 열교환기(5)의 안쪽에는 실내팬으로서 크로스 플로우팬(8)이 설치되어 있다. 그리고 이 크로스 플로우팬(8)의 뒷쪽에 스크롤부(20)가 형성되고, 실내기의 케이싱(15)의 앞면측 하부로 개구하는 분출구(21)에 매끄럽게 연달아 설치되어 있다. 이 공기조절장치(1)에 있어서는 앞면측 열교환기(10)에 있어서 냉각·제습한 공기와, 뒷면측 열교환기(11)에 있어서 가열한 공기를 기내에서 혼합하고, 이것을 분출구(21)로부터 분출함으로써 재열 건조운전이 행하여지도록 되어 있다.First, the longitudinal cross-sectional view of the indoor unit which shows one Embodiment of the said air conditioner 1 in FIG. 2 is shown. In the figure, a lattice ceiling suction port 17 is formed in the casing 15 of the indoor unit almost in front of the ceiling panel 16, and the grid front suction port 19 is almost in front of the front panel 18. ) Is formed. In addition, the indoor heat exchanger 5 disposed in the casing 15 is divided into a rear side heat exchanger 10 (first heat exchanger) and a front side heat exchanger 11 (second heat exchanger), and these are reversed V. It is comprised combining in the shape of a child. Moreover, inside the reverse V-shaped indoor heat exchanger 5, the cross flow fan 8 is provided as an indoor fan. And the scroll part 20 is formed in the back of this cross flow fan 8, and is smoothly provided in the jet port 21 which opens to the lower front side of the casing 15 of an indoor unit. In this air conditioner 1, the air cooled and dehumidified in the front side heat exchanger 10, and the air heated in the back side heat exchanger 11 are mixed in-flight, and this is blown off from the blower outlet 21. As a result, the reheat drying operation is performed.
또 상기 공기조절장치(1)의 실내기에는 제어기(13)와 협동하여 앞면 흡입구 (19)로부터 공급되는 풍량을 제어하기 위한 풍량제어수단이 설치되어 있다. 즉 이 실시형태의 경우, 상기 풍량제어수단은 앞면 흡입구(19)를 개폐하는 것이 가능한 셔터(22)와, 상기 셔터(22)를 앞면 패널(18)의 안쪽을 따라 이동시키는 모터부착 기어 (23)와, 상기 셔터(22)를 감아 들이는 감아들임 기구(25)로 구성되어 있다. 더욱 상세하게 설명하면 상기 케이싱(15)내의 앞면 패널(18)측의 위쪽부에는 막대형상의 감아들임용 기구(25)가 그 길이방향이 상기 케이싱(15)의 길이방향과 대략 평행하게 되도록 배치되어 있다. 상기 감아들임용 기구(25)에는 대략 직사각형의셔터(22)의 상단부가 설치되어 있고, 상기 감아들임용 기구(25)에 상기 셔터(22)를 감아들일 수 있도록 구성되어 있다. 또한 상기 감아들임용 기구(25)보다 아래쪽측의 위치에는 중심에 모터의 회전축(24)을 구비한 기어(23)가 배치되어 있고, 상기 기어(23)와 앞면 패널(18) 사이에 셔터(22)가 위치하도록 배치되어 있다. 또 상기 셔터(22)에는 그 안쪽의 면, 즉 상기 기어(23)와 마주 보는 방향에 있는 면에 기어(23)와 동일한 피치의 요철이 형성되어 있고, 상기 셔터(22)에 형성된 요철과 기어(23)를 맞물리게 함으로써, 기어(23)의 회전을 상기 셔터(22)에 전달할 수 있도록 구성되어 있다. 그리고 상기 구성에 의하여 앞면 패널(18)의 안쪽을 따라 상기 셔터(22)를 상하방향으로 슬라이드시킴으로써, 앞면 흡입구(19)의 개폐를 행할 수 있어, 앞면 흡입구 (19)로부터 공급되는 풍량의 제어를 행하는 것이 가능하게 된다.The indoor unit of the air conditioner 1 is provided with air volume control means for controlling the air volume supplied from the front suction port 19 in cooperation with the controller 13. That is, in this embodiment, the air volume control means includes a shutter 22 capable of opening and closing the front suction port 19, and a geared motor 23 for moving the shutter 22 along the inside of the front panel 18. ) And a reeling mechanism 25 for reeling the shutter 22. In more detail, in the upper part of the front panel 18 side in the casing 15, the rod-shaped rewinding mechanism 25 is arranged so that the longitudinal direction thereof is substantially parallel to the longitudinal direction of the casing 15. It is. The winding mechanism 25 is provided with an upper end of an approximately rectangular shutter 22, and is configured to be able to wind the shutter 22 around the winding mechanism 25. As shown in FIG. In addition, a gear 23 having a rotation shaft 24 of a motor is disposed at the center at a position below the winding mechanism 25, and a shutter () between the gear 23 and the front panel 18. 22) is arranged to be located. In addition, the shutter 22 is formed with an uneven surface having the same pitch as the gear 23 on an inner surface thereof, that is, a surface in a direction facing the gear 23. It is comprised so that rotation of the gear 23 can be transmitted to the said shutter 22 by engaging 23. As shown in FIG. By the above configuration, the front and rear inlet openings 19 can be opened and closed by sliding the shutter 22 along the inside of the front panel 18, thereby controlling the amount of air supplied from the front inlet 19. It is possible to do.
다음에 상기 공기조절장치(1)의 실내기의 사시도를 도 4에 나타낸다. 도면에 나타내는 바와 같이 상기 실내기 본체(14)의 측면 아래쪽부에는 슬릿(29)이 설치되어 있고, 그 속에 실내온도를 측정하는 온도센서(27)와, 실내습도를 측정하는 습도센서(28)가 설치되어 있다. 상기 각 센서(27, 28)는 실내의 온도와 습도로부터 노점온도를 구하기 위하여 설치된 것으로, 이 노점온도로부터 상기 풍량제어수단을 사용한 앞면측 열교환기(11)의 온도제어를 행할지의 여부의 판단을 행하고 있다. 이 때 상기 각 센서(27, 28)는 실내기 내부에 설치되어 있으나, 각 센서(27, 28)의 앞에 설치된 슬릿(29)으로부터 실내공기의 출입이 행하여지기 때문에, 실내의 습도와 온도를 정확하게 측정할 수 있어, 이에 의하여 정확한 노점온도가 구해진다.Next, a perspective view of the indoor unit of the air conditioner 1 is shown in FIG. As shown in the figure, a slit 29 is provided at the lower side of the indoor unit main body 14, in which a temperature sensor 27 for measuring indoor temperature and a humidity sensor 28 for measuring indoor humidity are provided. It is installed. Each of the sensors 27 and 28 is provided to obtain a dew point temperature from room temperature and humidity, and it is determined whether or not to control the temperature of the front side heat exchanger 11 using the airflow control means from this dew point temperature. Is doing. At this time, the sensors 27 and 28 are installed inside the indoor unit. However, since indoor air enters and exits from the slit 29 provided in front of the sensors 27 and 28, the humidity and temperature of the room are accurately measured. In this way, an accurate dew point temperature can be obtained.
이상에 설명한 상기 각 센서(27, 28)와 풍량제어수단을 사용하여 제어기 (13)가 앞면 흡입구(19)의 풍량제어를 행하여 실내를 난방으로 하면서 제습을 행할 때의 제어방법에 대하여 설명한다. 도 5는 상기 풍량제어수단을 사용한 제어동작을 설명하기 위한 플로우차트이다.A control method when the controller 13 performs the air volume control of the front suction port 19 using the respective sensors 27 and 28 and the air volume control means described above to perform dehumidification while heating the room is described. 5 is a flowchart for explaining a control operation using the airflow control means.
먼저, 재열 건조운전 중에 있어서 단계(S1)에서는 증발기로서 기능하고 있는 앞면측 열교환기(11)의 온도가, 각 센서(27, 28)에 의하여 측정된 실내온도와 습도로부터 구한 노점온도보다 낮은지의 여부에 대한 판단을 행한다. 이때 앞면측 열교환기(11)의 온도쪽이 높거나, 또는 동일한 경우는 제습능력이 부족할 가능성이 있다는 것이므로, 단계(S2)로 이행하여 풍량제어수단인 셔터(22)를 사용한 풍량분배제어가 개시되어 앞면 흡입구(19)의 개방도를 좁게 한다. 그 다음에 단계(S3)로 진행하여 상기 개방도에서의 운전상태가 안정될 때까지 이 상태를 유지하고(약 10분간), 그리고 상기 일정시간이 경과한 후, 다시 단계(S1)로 되돌아가 풍량분배제어를 행할지의 여부의 판단을 행한다. 한편 단계(S1)에 있어서 노점온도의 쪽이 높으면 충분한 제습능력이 있다는 것이므로 상기 셔터(22)를 사용한 풍량분배제어는 행하지 않고, 현상태 그대로 유지한다(단계 S4). 그리고 일정시간이 경과한 후, 다시 단계 (S1)로 되돌아간다.First, in the step S1 during the reheat drying operation, it is determined whether the temperature of the front side heat exchanger 11 that functions as an evaporator is lower than the dew point temperature obtained from the room temperature and humidity measured by the sensors 27 and 28. A judgment about whether or not is made. At this time, if the temperature of the front side heat exchanger 11 is high or the same, there is a possibility that the dehumidification capacity may be insufficient. Therefore, the flow advances to step S2 to start the air volume distribution control using the shutter 22 as the air volume control means. This narrows the opening of the front suction port 19. Then, the process proceeds to step S3, and this state is maintained until the operation state at the opening degree is stabilized (about 10 minutes), and after the predetermined time has elapsed, the process returns to step S1 again. It is judged whether or not the air volume distribution control is to be performed. On the other hand, if the dew point temperature is higher in step S1, there is sufficient dehumidification ability, and thus the air volume distribution control using the shutter 22 is not carried out and is maintained as it is (step S4). After a certain time has elapsed, the process returns to step S1 again.
상기 방법에 의하면, 먼저 처음에 각 열교환기(10, 11)에 대한 통과풍량의 비율이 기본적으로 일정하게 되도록 통상의 재열 건조운전이 개시된다. 이 때 처음부터 풍량제어를 행하지 않는 것은 처음부터 앞면측 열교환기(11)에의 풍량을 적게 함으로써 전체의 운전능력이 저하하여 버리는 것을 방지하기 위함이다. 또 본 실시형태에 의하면, 실내온도와 습도로부터 구한 노점온도보다 증발기인 앞면측 열교환기 (11)의 온도의 쪽이 높거나, 또는 동일한 경우, 자동적으로 셔터(22)에 의해 앞면흡입구(19)의 개방도가 좁혀져 흡입풍량이 감소하도록 조정되어 있다. 이에 의하여 앞면측 열교환기(11)에서의 열교환이 제한되어 앞면측 열교환기(11)의 온도를 내릴 수 있어, 그 결과 제습량을 높일 수 있다. 또 상기 앞면 흡입구(19)의 셔터(22)에 의한 개방도 조절은, 연속적으로 행하는 것이 가능하여 실내를 난방하면서 재열 건조운전이 실행될 때까지 반복하여 상기 풍량분배제어가 행하여진다. 또 상기 운전이 실행된 경우에도 항상 그 상태가 계속되도록 일정시간마다 상기 판단 및 제어를 행하도록 구성되어 있다. 이상의 것에 의하여 실내를 난방으로 하기 위하여 응축기로서 기능하는 뒷면측 열교환기(10)의 응축온도를 상승시켜도 풍량제어수단에 의하여 증발기로서 기능하는 앞면측 열교환기(11)의 온도를 저하시키거나, 또는 온도상승을 억제할 수 있기 때문에, 제습량을 감소시키는 일 없이 확실하게 재열 건조운전을 실행할 수 있다. 그 결과, 사용자가 바라는 실내환경을 실현할 수 있어 쾌적성이 향상한다. 또한 이와 같이 앞면측 열교환기(11)의 온도를 제어하면 통상의 재열 건조운전시에 있어서도 확실한 제습효과가 얻어진다는 이점이 있다.According to the above method, first, the normal reheat drying operation is started so that the ratio of the amount of passing air to each of the heat exchangers 10 and 11 is basically constant. At this time, the air volume control is not performed from the beginning to prevent the overall operating capability from being lowered by reducing the air volume to the front side heat exchanger 11 from the beginning. Moreover, according to this embodiment, when the temperature of the front side heat exchanger 11 which is an evaporator is higher than or equal to the dew point temperature calculated | required from room temperature and humidity, the front suction opening 19 by the shutter 22 is automatically performed. The opening degree of the lens is narrowed so that the amount of suction air is reduced. As a result, the heat exchange in the front side heat exchanger 11 is limited, so that the temperature of the front side heat exchanger 11 can be lowered, and as a result, the dehumidification amount can be increased. The opening degree adjustment by the shutter 22 of the front suction port 19 can be continuously performed, and the air volume distribution control is repeatedly performed until the reheat drying operation is performed while heating the room. In addition, the determination and control are performed every predetermined time so that the state is always continued even when the operation is executed. Even if the condensation temperature of the rear side heat exchanger 10 functioning as a condenser is increased by the above, the temperature of the front side heat exchanger 11 functioning as an evaporator is lowered by the airflow control means, or Since the temperature rise can be suppressed, the reheat drying operation can be reliably performed without reducing the dehumidification amount. As a result, the indoor environment desired by the user can be realized, and the comfort is improved. In addition, by controlling the temperature of the front side heat exchanger 11 as described above, there is an advantage that a dehumidifying effect can be obtained even in a normal reheat drying operation.
이상에 본 발명의 구체적인 실시형태에 대하여 설명하였으나, 본 발명은 상기 실시형태에 한정되는 것이 아니라, 본 발명의 범위내에서 여러가지로 변경하여 실시하는 것이 가능하다. 먼저 상기 실시형태에 있어서 풍량제어수단에 의한 풍량제어를 행할지의 여부를 판단할 때, 증발기인 앞면측 열교환기(11)의 온도와 노점온도를 비교함으로써 판단하였으나, 앞면측 열교환기(11)의 온도가 실내습도 50% 이하로 하기 위하여 필요한 증발온도인지의 여부를 비교함으로써 판단하여도 좋다. 이 경우에 필요로 하는 증발온도는 센서 등을 사용하여 구하는 것도 가능하나, 사용실태 등을 고려하여 사전에 특정온도를 설정하여 두어도 좋다.Although specific embodiment of this invention was described above, this invention is not limited to the said embodiment, It can be variously changed and implemented within the range of this invention. First, in the above embodiment, when determining whether to perform the air volume control by the air volume control means, it was determined by comparing the temperature of the front side heat exchanger 11 which is an evaporator with the dew point temperature, but the front side heat exchanger 11 The temperature may be determined by comparing whether or not the temperature of evaporation is required to be 50% or less of indoor humidity. In this case, the evaporation temperature required may be obtained by using a sensor or the like, but a specific temperature may be set in advance in consideration of the use situation.
또 상기 실시형태에서는 풍량제어수단에 셔터(22)를 사용하여 앞면 흡입구 (19)로부터 공급되는 풍량을 제어하였으나, 도 3에 나타내는 바와 같이 상기 실내기에 있어서, 앞면 흡입구(19)를 바깥쪽으로부터 덮는 것이 가능한 앞면 덮개(30)를 설치함으로써, 흡입풍량을 제어하는 것도 가능하다. 즉 상기 앞면 덮개(30)는 대략 직사각형 판의 상하방향을 약간 만곡시킨 형을 가지고 있고, 그 오목부가 안쪽을 향하도록 배치됨과 동시에, 그 하단부가 앞면 흡입구(19) 아래쪽부의 케이싱(15)에 회동 가능하게 설치되어 있다. 또 상기 앞면 덮개(30)가 설치된 설치부(31)의 중심에는 모터의 회전축(32)이 설치되어 있고, 모터를 구동함으로써 상기 앞면 덮개(30)가 설치부(31)의 회전축(32)을 중심으로 하여 안과 밖으로 회동하도록 구성되어 있다. 따라서 상기 앞면 덮개(30)의 회동에 의해 앞면 흡입구(19)의 개방도를 조절하여 흡입풍량을 제어할 수 있다.Moreover, in the said embodiment, although the air volume supplied from the front suction port 19 was controlled using the shutter 22 for the air volume control means, in the said indoor unit, the front suction port 19 which covers the front suction port 19 from the outside is shown. It is also possible to control the suction air volume by providing the front cover 30 which can be installed. That is, the front cover 30 has a shape in which the upper and lower directions of the rectangular plate are slightly curved, and the recess is disposed to face inward, and the lower end thereof is rotated to the casing 15 at the lower side of the front suction port 19. It is possibly installed. In addition, the rotation shaft 32 of the motor is provided at the center of the installation portion 31 in which the front cover 30 is installed, and the front cover 30 rotates the rotation shaft 32 of the installation portion 31 by driving the motor. It is configured to rotate in and out around the center. Therefore, by adjusting the opening of the front suction port 19 by the rotation of the front cover 30 it is possible to control the amount of suction air.
또한 상기 방법에 의하면, 증발기로서 기능하는 앞면측 열교환기(11)를 통과하는 풍량을 제어하는 것, 즉 앞면 흡입구(19)로부터의 흡입풍량을 적게 함으로써, 상기 앞면측 열교환기(11)의 온도를 내려 제습량을 높였으나, 앞면측 열교환기(11)로 유입하는 냉매의 압력을 제어함으로써, 앞면측 열교환기(11)의 증발온도를 저하하여 제습량을 높이는 것도 가능하다. 예를 들면 압력제어수단으로서 상기 앞면측 열교환기(11)의 냉매경로의 입구측에 설치한 감압기구(12)를 이용하여 상기 감압기구(12)의 개방도를 좁게 하여 감압량을 크게 함으로써, 앞면측 열교환기(11)에서의 증발온도를 내려 제습량을 높일 수도 있다. 이와 같이 구성하면 특별한 기구를 부가하는 일 없이 실시 가능하므로, 구성부가에 의한 비용상승을 억제할 수 있다. 또한 상기 실시형태에서는 실내온도센서와 습도센서를 실내기 본체(14)에 설치하였으나, 실내의 온도와 습도를 측정할 수 있으면 어디에 설치하여도 좋다.Further, according to the above method, the temperature of the front side heat exchanger 11 is controlled by controlling the amount of air passing through the front side heat exchanger 11 that functions as an evaporator, that is, by reducing the amount of suction air flow from the front side suction port 19. While lowering the dehumidification amount, the dehumidification amount is increased, but by controlling the pressure of the refrigerant flowing into the front side heat exchanger 11, it is also possible to increase the dehumidification amount by lowering the evaporation temperature of the front side heat exchanger 11. For example, by using the pressure reduction mechanism 12 provided on the inlet side of the refrigerant path of the front side heat exchanger 11 as the pressure control means, the opening degree of the pressure reduction mechanism 12 is narrowed to increase the amount of reduced pressure. The amount of dehumidification can be increased by lowering the evaporation temperature in the front side heat exchanger 11. If comprised in this way, since it can implement without adding a special mechanism, the cost increase by a structure part can be suppressed. In addition, although the indoor temperature sensor and the humidity sensor are provided in the indoor unit main body 14 in the said embodiment, you may install wherever the temperature and humidity of a room can be measured.
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30854499A JP2001124434A (en) | 1999-10-29 | 1999-10-29 | Air conditioner |
| JPJP-P-1999-00308544 | 1999-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020070973A true KR20020070973A (en) | 2002-09-11 |
| KR100491718B1 KR100491718B1 (en) | 2005-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2002-7005192A Expired - Fee Related KR100491718B1 (en) | 1999-10-29 | 2000-10-23 | Air conditioner |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1227286B1 (en) |
| JP (1) | JP2001124434A (en) |
| KR (1) | KR100491718B1 (en) |
| CN (1) | CN1196902C (en) |
| AT (1) | ATE423949T1 (en) |
| AU (1) | AU7953600A (en) |
| DE (1) | DE60041649D1 (en) |
| ES (1) | ES2321685T3 (en) |
| WO (1) | WO2001033146A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100710057B1 (en) * | 2006-02-27 | 2007-04-20 | 주식회사 대우일렉트로닉스 | Cooling system of air conditioner |
| KR100911789B1 (en) | 2003-01-15 | 2009-08-12 | 엘지전자 주식회사 | Dehumidification Air Conditioner |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002130863A (en) * | 2000-10-19 | 2002-05-09 | Chikayoshi Sato | Dehumidification method |
| ES2636539T3 (en) * | 2004-03-31 | 2017-10-06 | Daikin Industries, Ltd. | Air conditioning system |
| JP4923794B2 (en) * | 2006-07-06 | 2012-04-25 | ダイキン工業株式会社 | Air conditioner |
| JP2008014605A (en) * | 2006-07-10 | 2008-01-24 | Matsushita Electric Ind Co Ltd | Air conditioner |
| KR101260418B1 (en) | 2012-07-30 | 2013-05-07 | 정종인 | Dryer and cold storage system using heat pump and method for operating the system |
| JP2018025344A (en) * | 2016-08-09 | 2018-02-15 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| JP2018025342A (en) * | 2016-08-09 | 2018-02-15 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| DE102017109552A1 (en) * | 2017-05-04 | 2018-11-08 | Weiss-Doppelbodensysteme GmbH | Air conditioner for double floor systems |
| CN112797657B (en) * | 2019-10-28 | 2024-06-21 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
| CN115789791B (en) * | 2022-10-28 | 2024-11-08 | 珠海格力电器股份有限公司 | Air conditioning system and control method |
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|---|---|---|---|---|
| JP2658691B2 (en) * | 1991-01-29 | 1997-09-30 | 三菱電機株式会社 | Dehumidifier |
| JPH0518630A (en) * | 1991-07-10 | 1993-01-26 | Toshiba Corp | Air conditioner |
| JP2945512B2 (en) * | 1991-07-19 | 1999-09-06 | 株式会社日立製作所 | Air conditioner |
| US5341650A (en) * | 1992-03-13 | 1994-08-30 | Kabushiki Kaisha Toshiba | Air conditioning apparatus having a plurality of inlets for taking in indoor air at a plurality of portions of main body thereof |
| JP3190139B2 (en) * | 1992-10-13 | 2001-07-23 | 東芝キヤリア株式会社 | Air conditioner |
| JP3205098B2 (en) * | 1992-12-22 | 2001-09-04 | 富士通システムコンストラクション株式会社 | Air conditioner |
| JP3404968B2 (en) * | 1995-03-16 | 2003-05-12 | 株式会社日立製作所 | Air conditioner |
| JP3410859B2 (en) * | 1995-06-28 | 2003-05-26 | 東芝キヤリア株式会社 | Air conditioner |
| US5678417A (en) * | 1995-06-28 | 1997-10-21 | Kabushiki Kaisha Toshiba | Air conditioning apparatus having dehumidifying operation function |
| JPH11248288A (en) * | 1998-03-04 | 1999-09-14 | Sanyo Electric Co Ltd | Air conditioner |
-
1999
- 1999-10-29 JP JP30854499A patent/JP2001124434A/en active Pending
-
2000
- 2000-10-23 AT AT00969980T patent/ATE423949T1/en not_active IP Right Cessation
- 2000-10-23 EP EP00969980A patent/EP1227286B1/en not_active Expired - Lifetime
- 2000-10-23 DE DE60041649T patent/DE60041649D1/en not_active Expired - Lifetime
- 2000-10-23 ES ES00969980T patent/ES2321685T3/en not_active Expired - Lifetime
- 2000-10-23 WO PCT/JP2000/007369 patent/WO2001033146A1/en not_active Application Discontinuation
- 2000-10-23 CN CNB008149356A patent/CN1196902C/en not_active Expired - Fee Related
- 2000-10-23 KR KR10-2002-7005192A patent/KR100491718B1/en not_active Expired - Fee Related
- 2000-10-23 AU AU79536/00A patent/AU7953600A/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100911789B1 (en) | 2003-01-15 | 2009-08-12 | 엘지전자 주식회사 | Dehumidification Air Conditioner |
| KR100710057B1 (en) * | 2006-02-27 | 2007-04-20 | 주식회사 대우일렉트로닉스 | Cooling system of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001124434A (en) | 2001-05-11 |
| EP1227286A4 (en) | 2003-05-07 |
| CN1384910A (en) | 2002-12-11 |
| ATE423949T1 (en) | 2009-03-15 |
| ES2321685T3 (en) | 2009-06-10 |
| EP1227286A1 (en) | 2002-07-31 |
| CN1196902C (en) | 2005-04-13 |
| DE60041649D1 (en) | 2009-04-09 |
| EP1227286B1 (en) | 2009-02-25 |
| KR100491718B1 (en) | 2005-05-25 |
| WO2001033146A1 (en) | 2001-05-10 |
| AU7953600A (en) | 2001-05-14 |
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