KR20080065179A - Contral method of air-conditioner for preventing dew condensation - Google Patents

Contral method of air-conditioner for preventing dew condensation Download PDF

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KR20080065179A
KR20080065179A KR1020070002238A KR20070002238A KR20080065179A KR 20080065179 A KR20080065179 A KR 20080065179A KR 1020070002238 A KR1020070002238 A KR 1020070002238A KR 20070002238 A KR20070002238 A KR 20070002238A KR 20080065179 A KR20080065179 A KR 20080065179A
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control
temperature
time
condensation
amount
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KR1020070002238A
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Korean (ko)
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KR101253358B1 (en
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최동석
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주식회사 대우일렉트로닉스
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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
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F24F3/06—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 arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F24F2013/225—Means for preventing condensation or evacuating condensate for evacuating condensate by evaporating the condensate in the cooling medium, e.g. in air flow from the condenser
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves

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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

A control method of an air conditioner for preventing dew condensation is provided to prevent dew from being formed around an outlet including a flap by periodically changing flow of fluid around an outlet of an indoor unit. A control method of an air conditioner for preventing dew condensation comprises the step of calculating the dew point(Tdew) using humidity detected by a humidity detection member. A temperature(Tihe) of an indoor heat exchanger is compared with the temperature obtained by subtracting a controlling set temperature difference(alpha) from the dew point. A lapsed time(Tc) is counted. The lapsed time represents a time, which has lapsed from a point, at which the temperature of the indoor heat exchanger decreases below the temperature difference between the controlling set temperature difference and the dew point. The lapse time is compared with a setting time(Ts). A dew condensation control operation is performed through ventilation and temperature of the indoor heat exchanger from a point at which the lapsed time exceeds the setting time. A dew condensation control duration time(Tc-Ts) is compared with a setting control duration time(Ta). The air conditioner restores to the original condition when the dew condensation control duration time exceeds the setting control duration time.

Description

결로방지를 위한 공기조화기의 제어방법{CONTRAL METHOD OF AIR-CONDITIONER FOR PREVENTING DEW CONDENSATION}Control method of air conditioner to prevent dew condensation {CONTRAL METHOD OF AIR-CONDITIONER FOR PREVENTING DEW CONDENSATION}

도 1은 본 발명의 바람직한 실시예에 따른 결로방지를 위한 공기조화기의 제어방법을 도시한 블럭도.1 is a block diagram showing a control method of an air conditioner for preventing condensation according to a preferred embodiment of the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

Tdew: 이슬점 온도 α: 제어설정온도차 값Tdew: Dew point temperature α: Control set temperature difference value

Tihe: 실내열교환기 온도 Tc: 경과시간Tihe: Indoor heat exchanger temperature Tc: Elapsed time

Ts: 설정시간 Ta: 설정제어지속시간Ts: Setting time Ta: Setting control duration

본 발명은 공기조화기에 관한 것으로서, 더욱 상세하게는 다습한 조건에서 냉방운전을 수행할 때 공기 조화기의 토출구 주변의 결로현상을 방지하는 공기조화기의 결로방지 제어방법에 관한 것이다.The present invention relates to an air conditioner, and more particularly, to a condensation prevention control method of an air conditioner that prevents condensation around a discharge port of an air conditioner when performing a cooling operation in a humid condition.

일반적으로, 공기조화기가 운전되는 과정에서 냉매가 증발되는 실내열교환기는 실내공간의 온도와 비교했을 때 매우 낮은 온도로 유지된다. 따라서, 실내기 내에서 송풍팬에 의해 외부로부터 유입되는 공기는 실내열교환기와의 접촉을 통한 열교환을 수행하여 냉각되고, 이와 같이 냉각된 공기는 토출구를 경유하여 실내공간으로 토출되어 실내공기의 온도를 낮추어 줄 수 있도록 한다. 이와 같이 냉방운전이 장시간 지속되는 과정에서, 그 중에서도 특히 송풍량의 변화나 실내열교환기의 온도변화가 없는 상태에서 냉방운전이 지속되는 경우에, 실내기 외부로 토출되는 냉각된 공기의 영향으로 플랩이나 토출구 주변부분 자체의 온도가 실내공간의 온도에 비하여 현저히 낮아짐에 따라, 공기조화기의 실내기를 통해 토출되는 공기가 아닌 주변공간의 공기에 포함되어 있던 수증기가 플랩이나 토출구 주변부분에서 응결하여 이슬이 맺히게 되는 현상이 발생하게 된다.In general, the indoor heat exchanger in which the refrigerant evaporates while the air conditioner is operating is maintained at a very low temperature compared to the temperature of the indoor space. Therefore, the air introduced from the outside by the blowing fan in the indoor unit is cooled by performing heat exchange through contact with the indoor heat exchanger, and the cooled air is discharged into the indoor space via the discharge port to lower the temperature of the indoor air. To give. In the process of cooling operation that lasts for a long time, in particular, when the cooling operation is continued in a state where there is no change in the air flow amount or the temperature change of the indoor heat exchanger, the flap or the discharge port is affected by the cooling air discharged to the outside of the indoor unit. As the temperature of the periphery itself is significantly lower than the temperature of the indoor space, water vapor contained in the air of the surrounding space, rather than the air discharged through the indoor unit of the air conditioner, condenses at the flap or the periphery of the discharge port to form dew. Phenomenon occurs.

이와 같이, 플랩 등에 이슬이 맺히게 되면 송풍팬에 의해 토출되는 공기 유동에 의해 물방울이 실내공간으로 비산하게 되고, 비산되는 물방울이 사람을 향하는 경우에는 매우 불쾌한 느낌을 줄 수 있는 문제점이 있는 실정이다. As such, when dew is formed on the flap or the like, the water droplets are scattered to the indoor space by the air flow discharged by the blowing fan, and when the water droplets are scattered toward the person, there is a problem that a very unpleasant feeling can be provided.

상기한 바와 같은 종래기술의 문제점을 해결하기 위하여 발명한 것으로서, 본 발명은 공기조화기 실내기의 토출구 주변의 유동을 주기적으로 변화시킴과 더불어, 실내열교환기의 온도를 주기적으로 변화시켜 플랩을 포함하는 토출구 주변의 결로현상을 방지할 수 있도록 하는 결로방지를 위한 공기조화기의 제어방법을 제공 하는 것을 목적으로 한다.In order to solve the problems of the prior art as described above, the present invention includes a flap by periodically changing the temperature of the indoor heat exchanger, while periodically changing the flow around the outlet of the indoor unit of the air conditioner An object of the present invention is to provide a control method of an air conditioner for preventing condensation to prevent condensation around a discharge port.

상기한 목적을 달성하기 위한 본 발명은,The present invention for achieving the above object,

a) 습도감지수단으로 감지한 습도 값을 이용하여 이슬점 온도(Tdew)를 연산하는 단계;a) calculating a dew point temperature Tdew using the humidity value detected by the humidity sensing means;

b) 이슬점 온도(Tdew)에서 제어설정온도차 값(α)을 뺀 온도와 실내열교환기의 온도(Tihe)를 비교하는 단계;b) comparing the temperature (Tihe) of the indoor heat exchanger with the temperature obtained by subtracting the control set temperature difference value (α) from the dew point temperature (Tdew);

c) 실내열교환기의 온도가 이슬점 온도(Tdew)에서 제어설정온도차 값(α)을 뺀 온도 이하로 감소한 시점부터 경과시간(Tc)을 카운트하는 단계;c) counting the elapsed time Tc from the time when the temperature of the indoor heat exchanger decreases below the temperature obtained by subtracting the control set temperature difference value α from the dew point temperature Tdew;

d) 경과시간(Tc)과 설정시간(Ts)을 비교하는 단계;d) comparing the elapsed time (Tc) and the set time (Ts);

e) 경과시간(Tc)이 설정시간(Ts)을 초과한 시점부터 송풍량제어와 실내열교환기의 온도제어를 통해 수행되는 결로제어단계;e) a dew condensation control step performed by controlling the air volume and temperature control of the indoor heat exchanger from the time when the elapsed time Tc exceeds the set time Ts;

f) 결로제어지속시간(Tc-Ts)을 설정제어지속시간(Ta)과 비교하는 단계; 및 f) comparing the dew condensation control duration Tc-Ts with the set control duration Ta; And

g) 결로제어지속시간(Tc-Ts)이 설정제어지속시간(Ta)을 경과한 경우에 원래 제어상태로 복귀시키는 원상복귀단계;를 포함하는 것을 특징으로 하는 결로방지를 위한 공기조화기의 제어방법을 제공한다.g) return to the original control state when the condensation control duration Tc-Ts has elapsed from the set control duration Ta; and controlling the air conditioner for preventing dew condensation. Provide a method.

그리고, 상기 결로제어단계는, 일정 정도의 EEV 개도량 증가 및 일정 정도의 실내송풍량 감소를 동반하는 저온제어, 또는 일정 정도의 EEV 개도량 감소 및 일정 정도의 실내송풍량 증가를 동반하는 고온제어를 통해 수행되는 것을 특징으로 한 다. And, the dew condensation control step, through the low temperature control accompanied by a certain amount of increase in the amount of EEV opening and a certain amount of indoor air flow, or a high temperature control accompanied by a decrease in the amount of EEV opening and a certain amount of indoor air flow Characterized in that it is performed.

또한, 상기 결로제어단계는, 일정주기에 따라 반복적으로 수행되는 과정에서, 상기 저온제어와 상기 고온제어가 교호반복적으로 수행되는 것을 특징으로 한다. In addition, the dew condensation control step, characterized in that the low temperature control and the high temperature control is repeatedly performed in a process that is repeatedly performed according to a predetermined period.

한편, 설정제어지속시간 동안 수행되는 상기 결로제어단계는, 설정제어지속시간 중 일부의 시간 동안은 일정 정도의 EEV 개도량 증가 및 일정 정도의 실내송풍량 감소를 동반하는 저온제어를 통해 수행하고, 나머지 설정제어지속시간 동안은 일정 정도의 EEV 개도량 감소 및 일정 정도의 실내송풍량 증가를 동반하는 고온제어를 통해 수행되는 것을 특징으로 한다. On the other hand, the dew condensation control step that is performed during the set control duration is carried out through the low temperature control accompanied by a certain amount of increase in the EEV opening amount and a decrease in the indoor air volume for a part of the set control duration time, and the rest The set control duration is characterized in that it is carried out by high temperature control accompanied by a certain amount of EEV opening amount and a certain amount of indoor airflow increase.

이상에서, 상기 제어설정온도차 값(α)은 5℃ 내지 10℃의 범위 내에서 결정되는 것을 특징으로 한다. In the above, the control set temperature difference value (α) is characterized in that it is determined within the range of 5 ℃ to 10 ℃.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 더욱 상세하게 설명한다. Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

도 1은 본 발명의 바람직한 실시예에 따른 결로방지를 위한 공기조화기의 제어방법을 도시한 블럭도이다. 1 is a block diagram illustrating a control method of an air conditioner for preventing condensation according to a preferred embodiment of the present invention.

본 발명의 바람직한 실시예에 따른 결로방지를 위한 공기조화기의 제어방법은, 도 1에 도시한 바와 같이, 송풍량과 실내열교환기의 온도를 변화시키는 결로제어를 통해 공기조화기 실내기의 토출구 주변에 결로현상이 발생하는 것을 방지 또는 감소시킬 수 있도록 한다. The control method of the air conditioner for preventing condensation according to the preferred embodiment of the present invention, as shown in Figure 1, through the dew condensation control to change the air volume and the temperature of the indoor heat exchanger around the outlet of the indoor unit of the air conditioner To prevent or reduce the occurrence of condensation.

우선, 냉방운전이 시작되면 먼저 습도감지수단으로 습도 값을 감지하고, 이 값을 이용하여 마이컴에서 이슬점 온도(Tdew)를 연산하도록 한다. First, when the cooling operation starts, the humidity value is first detected by the humidity sensing means, and the dew point temperature Tdew is calculated by the microcomputer using this value.

이어서, 냉방운전시 이슬점 온도(Tdew)는 일반적으로 실내열교환기의 온도(Tihe) 보다 낮은 것이 당연함에 따라, 이슬점 온도(Tdew)에서 일정한 값으로 설정되는 제어설정온도차 값(α)을 뺀 온도와 실내열교환기의 온도(Tihe)를 비교하게 된다. 여기서, 제어설정온도차 값(α)은 실험을 통해 결정될 수 있는 값으로서, 바람직하게는 5℃ 내지 10℃의 범위 내에서 결정된다. Subsequently, during the cooling operation, the dew point temperature Tdew is generally lower than the temperature of the indoor heat exchanger Tihe, so that the dew point temperature Tdew is obtained by subtracting the control set temperature difference value α set to a constant value. The temperature (Tihe) of the indoor heat exchanger is compared. Here, the control set temperature difference value α is a value that can be determined through an experiment, and is preferably determined within a range of 5 ° C to 10 ° C.

이상의 과정에서, 실내열교환기의 온도가 이슬점 온도(Tdew)에서 제어설정온도차 값(α)을 뺀 온도 이하로 감소하게 되면, 그 시점부터 경과시간(Tc)을 카운트하며, 이와 같이 카운트한 경과시간(Tc)을 설정시간(Ts)과 비교하게 된다. 설정시간(Ts)은 본 발명에서 궁극적으로 결로현상을 방지하기 위하여 수행되는 이하의 결로제어가 너무 빈번하게 수행될 경우, 공기조화기의 주목적이라 할 수 있는 실내공간의 냉방과 관련한 효과의 저하로 이어질 수 있음에 따라 너무 짧지 않게 설정되어야 할 것이며, 예를 들어, 15분 내지 30분 정도의 범위 내에서 결정되는 것이 바람직하다 하겠다. In the above process, when the temperature of the indoor heat exchanger decreases below the temperature obtained by subtracting the control set temperature difference value α from the dew point temperature Tdew, the elapsed time Tc is counted from that point. (Tc) is compared with the set time Ts. The set time (Ts) is a decrease in the effects related to the cooling of the indoor space, which is the main purpose of the air conditioner when the following condensation control is performed too frequently in order to ultimately prevent condensation in the present invention. It should be set so as not to be too short as it may be followed, for example, it is preferred that it is determined within the range of about 15 to 30 minutes.

카운트한 경과시간(Tc)이 상기한 바와 같이 결정된 설정시간(Ts)을 초과하게 되면, 초과시점부터 송풍량제어와 실내열교환기의 온도제어를 통해 수행되는 결로제어가 수행된다. When the counted elapsed time Tc exceeds the set time Ts determined as described above, the dew condensation control performed through the air volume control and the temperature control of the indoor heat exchanger is performed from the time point of exceeding.

결로제어는 사전에 결정되는 설정제어지속시간(Ta) 동안 수행되는 것으로서, 구체적으로, 일정 정도의 전자팽창밸브(Electronic Expansion Valve, 이하 EEV) 개 도량 증가 및 일정 정도의 송풍량 감소를 동반하는 저온제어, 또는 일정 정도의 EEV 개도량 감소 및 일정 정도의 송풍량 증가를 동반하는 고온제어를 통해 수행된다. 이는, 실내열교환기의 온도가 특정온도로 상당시간 유지되고 송풍량이 특정수준으로 상당시간 유지되는 경우에, 결로현상이 발생하기 쉬운 조건이라는 것을 감안한 것으로서, 송풍량에 변화의 여지를 제공하고, 실내열교환기의 온도에 변화의 여지를 제공하여, 송풍량의 변화와 토출되는 공기의 온도변화를 통해 궁극적으로 결로현상이 발생하는 것을 방지하거나 현저히 감소시킬 수 있도록 하는 것이다.Condensation control is performed during a predetermined set control duration Ta, specifically, low temperature control accompanied by a certain amount of opening of an electronic expansion valve (EEV) and a decrease in air blowing amount. Or through high temperature control accompanied by a certain amount of EEV opening and a certain amount of blowing. This is in consideration of the fact that condensation is likely to occur when the temperature of the indoor heat exchanger is maintained for a certain time at a specific temperature and the air flow is maintained at a certain level for a certain time, thereby providing room for change in the airflow amount, and providing an indoor heat exchange. By providing a room for change in the temperature of the air, it is possible to prevent or significantly reduce the condensation phenomenon ultimately through the change in the blowing amount and the temperature of the discharged air.

이와 같이, 결로제어가 수행되는 동안, 경과시간의 카운트는 계속적으로 이루어지며, 더불어 결로제어지속시간(Tc-Ts)을 이상의 설정제어지속시간(Ta)과 비교하게 된다. In this manner, while the dew condensation control is performed, the elapsed time is counted continuously, and the dew condensation control duration Tc-Ts is compared with the above-described setting control duration Ta.

결로제어지속시간(Tc-Ts)이 설정제어지속시간(Ta)을 경과하게 되면, 실내공간의 냉방을 수행하기에 적합한 결로제어 이전의 원래 제어상태로 복귀하도록 함으로써, 한 사이클의 제어과정을 마무리하게 된다. When the condensation control duration Tc-Ts passes the set control duration Ta, the control process of one cycle is completed by returning to the original control state before the condensation control suitable for cooling the indoor space. Done.

이상과 같은 결로현상방지를 위한 일련의 제어과정은 냉방운전이 수행되는 동안 반복적으로 수행된다. 즉, 원상복귀 이후에 다시 현 상태의 습도 값을 습도감지수단으로 재감지하여, 이 값을 기준으로 마이컴에서 이슬점 온도(Tdew)를 다시 연산하는 과정을 거친 상태에서, 변경된 이슬점 온도(Tdew)를 기준으로 결로제어를 수행하게 되는 것이다. As described above, a series of control procedures for preventing condensation are repeatedly performed during the cooling operation. That is, after returning to the original state, the humidity value of the current state is re-detected by the humidity sensing means, and the dew point temperature Tdew is changed while the dew point temperature Tdew is recalculated by the microcomputer based on this value. Condensation control will be performed as a standard.

한편, 이상과 같은 본 발명의 바람직한 실시예에 따른 결로방지를 위한 공기조화기의 제어방법에서, 결로제어를 수행하는 구체적인 방법은 다양하게 변화될 수 있다. On the other hand, in the control method of the air conditioner for preventing dew condensation according to the preferred embodiment of the present invention as described above, the specific method for performing the dew condensation control may be variously changed.

이상의 결로제어와 다른 일 예로서, 일정주기에 따라 반복적으로 수행되는 과정에서, 이상의 저온제어와 고온제어가 교호반복적으로 수행되는 방식으로 결로제어가 이루어질 수 있다. 즉, 여러 사이클 동안 반복적으로 이상의 제어방법을 수행하는 과정에서, 일정 정도의 EEV 개도량 증가 및 일정 정도의 송풍량 감소를 동반하는 저온제어가 1회 수행되면, 그 다음에는 일정 정도의 EEV 개도량 감소 및 일정 정도의 송풍량 증가를 동반하는 고온제어가 1회 수행되는 방식으로 번갈아 가면서 결로제어가 수행될 수 있도록 하는 것이다.As another example of the above dew condensation control, in the process of repeatedly performing according to a predetermined cycle, the dew condensation control may be performed in such a manner that the above low temperature control and high temperature control are repeatedly performed alternately. That is, in the process of repeatedly performing the above-described control method for several cycles, if the low-temperature control accompanied with the increase of the amount of EEV opening and the decrease of the air blowing amount is performed once, then the amount of the EEV opening is reduced. And condensation control is to be carried out alternately in such a way that the high temperature control with a certain amount of blowing amount is performed once.

이상의 결로제어와 또 다른 일 예로서, 일정한 설정제어지속시간 동안 수행되는 결로제어는, 설정제어지속시간 중 일부의 시간 동안은 일정 정도의 EEV 개도량 증가 및 일정 정도의 실내송풍량 감소를 동반하는 저온제어를 통해 수행하고, 나머지 설정제어지속시간 동안은 일정 정도의 EEV 개도량 감소 및 일정 정도의 실내송풍량 증가를 동반하는 고온제어를 통해 수행되는 방식으로 수행될 수 있다. 여기서, 저온제어를 수행하다가 고온제어로 전환하는 경우에 원래 운전상태로 복귀하는 것이 아니라 원래 운전상태를 기준으로 고온제어를 수행하게 되는 것임을 알아야 한다. 또한, 저온제어와 고온제어의 선후관계 역시 어느 것을 먼저 수행하더라도 무방하다 할 것이다. As another example of the above dew condensation control, the dew condensation control performed for a predetermined setting control duration may include a low temperature accompanied by a certain increase in the amount of opening of the EEV and a decrease in the amount of indoor air flow during a part of the setting control duration. The control may be performed, and the rest of the set control duration may be performed in a manner that is performed through high temperature control accompanied by a certain amount of opening of the EEV and an increase in the amount of indoor airflow. Here, it should be noted that when performing the low temperature control and switching to the high temperature control, the high temperature control is performed based on the original operating state rather than returning to the original operating state. In addition, the relationship between low temperature control and high temperature control may be performed first.

이상과 같은 본 발명에 따른 결로방지를 위한 공기조화기의 제어방법을 제공함으로써, 본 발명은 EEV와 송풍팬 제어를 이용하여 다양한 방식의 결로제어를 수행함으로써 공기조화기 실내기의 토출구 주변의 유동을 주기적으로 교란하고 토출공기의 온도를 주기적으로 변화시킴으로써 플랩을 포함하는 토출구 주변의 결로현상을 방지할 수 있도록 하여, 토출구를 통해 실내공간으로 공급되는 조화공기의 유동에 의해 물방울이 비산하여 사람을 향함에 따라 불쾌감을 줄 수 있는 가능성을 차단 또는 현저히 감소시킬 수 있도록 하는 효과를 얻을 수 있도록 한다. By providing a control method of the air conditioner for preventing condensation according to the present invention as described above, the present invention performs the condensation control of the various methods using the EEV and the blowing fan control to control the flow around the discharge port of the indoor unit of the air conditioner By confounding periodically and changing the temperature of discharged air periodically to prevent condensation around the discharge port including flap, water droplets are scattered by the flow of the conditioning air supplied to the indoor space through the discharge port. In order to achieve the effect of blocking or significantly reducing the possibility of discomfort.

Claims (5)

a) 습도감지수단으로 감지한 습도 값을 이용하여 이슬점 온도(Tdew)를 연산하는 단계;a) calculating a dew point temperature Tdew using the humidity value detected by the humidity sensing means; b) 이슬점 온도(Tdew)에서 제어설정온도차 값(α)을 뺀 온도와 실내열교환기의 온도(Tihe)를 비교하는 단계;b) comparing the temperature (Tihe) of the indoor heat exchanger with the temperature obtained by subtracting the control set temperature difference value (α) from the dew point temperature (Tdew); c) 실내열교환기의 온도가 이슬점 온도(Tdew)에서 제어설정온도차 값(α)을 뺀 온도 이하로 감소한 시점부터 경과시간(Tc)을 카운트하는 단계;c) counting the elapsed time Tc from the time when the temperature of the indoor heat exchanger decreases below the temperature obtained by subtracting the control set temperature difference value α from the dew point temperature Tdew; d) 경과시간(Tc)과 설정시간(Ts)을 비교하는 단계;d) comparing the elapsed time (Tc) and the set time (Ts); e) 경과시간(Tc)이 설정시간(Ts)을 초과한 시점부터 송풍량제어와 실내열교환기의 온도제어를 통해 수행되는 결로제어단계;e) a dew condensation control step performed by controlling the air volume and temperature control of the indoor heat exchanger from the time when the elapsed time Tc exceeds the set time Ts; f) 결로제어지속시간(Tc-Ts)을 설정제어지속시간(Ta)과 비교하는 단계; 및 f) comparing the dew condensation control duration Tc-Ts with the set control duration Ta; And g) 결로제어지속시간(Tc-Ts)이 설정제어지속시간(Ta)을 경과한 경우에 원래 제어상태로 복귀시키는 원상복귀단계;를 포함하는 것을 특징으로 하는 결로방지를 위한 공기조화기의 제어방법.g) return to the original control state when the condensation control duration Tc-Ts has elapsed from the set control duration Ta; and controlling the air conditioner for preventing dew condensation. Way. 제 1항에 있어서,The method of claim 1, 상기 결로제어단계는, 일정 정도의 EEV 개도량 증가 및 일정 정도의 실내송풍량 감소를 동반하는 저온제어, 또는 일정 정도의 EEV 개도량 감소 및 일정 정도 의 실내송풍량 증가를 동반하는 고온제어를 통해 수행되는 것을 특징으로 하는 결로방지를 위한 공기조화기의 제어방법.The dew condensation control step may be performed through low temperature control accompanied by a certain amount of increase in the amount of EEV openings and a decrease in the amount of indoor air flow, or high temperature control accompanied by a decrease in the amount of EEV openings and an increase in the amount of indoor air flows. Control method of an air conditioner for preventing condensation, characterized in that. 제 2항에 있어서, The method of claim 2, 상기 결로제어단계는, 일정주기에 따라 반복적으로 수행되는 과정에서, 상기 저온제어와 상기 고온제어가 교호반복적으로 수행되는 것을 특징으로 하는 결로방지를 위한 공기조화기의 제어방법.The condensation control step, the control method of the air conditioner for preventing condensation, characterized in that the low temperature control and the high temperature control is repeatedly performed in a process that is repeatedly performed at a predetermined period. 제 1항에 있어서,The method of claim 1, 설정제어지속시간 동안 수행되는 상기 결로제어단계는, 설정제어지속시간 중 일부의 시간 동안은 일정 정도의 EEV 개도량 증가 및 일정 정도의 실내송풍량 감소를 동반하는 저온제어를 통해 수행하고, 나머지 설정제어지속시간 동안은 일정 정도의 EEV 개도량 감소 및 일정 정도의 실내송풍량 증가를 동반하는 고온제어를 통해 수행되는 것을 특징으로 하는 결로방지를 위한 공기조화기의 제어방법.The dew condensation control step performed during the set control duration is performed by low temperature control accompanied by a certain amount of increase in the amount of EEV opening and a decrease in the amount of indoor air flow during a part of the set control duration, and the remaining set control. The control method of the air conditioner for preventing condensation, characterized in that carried out through the high temperature control accompanied by a certain amount of EEV opening amount decrease and a certain amount of indoor air flow during the duration. 제 1항 내지 제 4항 중 어느 한 항에 있어서, The method according to any one of claims 1 to 4, 상기 제어설정온도차 값(α)은 5℃ 내지 10℃의 범위 내에서 결정되는 것을 특징으로 하는 결로방지를 위한 공기조화기의 제어방법. The control set temperature difference value (α) is a control method of the air conditioner for preventing condensation, characterized in that determined in the range of 5 ℃ to 10 ℃.
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