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JP2006118733A - Air conditioner - Google Patents

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JP2006118733A
JP2006118733A JP2004304107A JP2004304107A JP2006118733A JP 2006118733 A JP2006118733 A JP 2006118733A JP 2004304107 A JP2004304107 A JP 2004304107A JP 2004304107 A JP2004304107 A JP 2004304107A JP 2006118733 A JP2006118733 A JP 2006118733A
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temperature
outdoor fan
indoor
rotational speed
outdoor
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Junji Hayashi
淳二 林
Hiroyuki Takeuchi
裕幸 武内
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

【課題】空気調和機の露付防止運転において、減圧装置を絞ることより室内機能力を低下させるため、冷凍能力を著しく低下させるとともに、室内熱交換器が凍結する可能性があった。
【解決手段】露付条件においては、室外ファン回転数(R)を減速させることによる凝縮温度上昇での能力低下を、蒸発温度上昇による冷媒循環量増加でカバーすることにより、著しい能力低下を起こさずに露付防止運転ができる空気調和機を提供するものである。
【選択図】図1
In an operation to prevent dew condensation of an air conditioner, since the indoor functional force is reduced by restricting the decompression device, the refrigerating capacity is significantly reduced and the indoor heat exchanger may be frozen.
Under the dew condition, the capacity decrease due to the increase in the condensation temperature caused by decelerating the outdoor fan rotation speed (R) is covered by the increase in the circulation amount of the refrigerant due to the increase in the evaporation temperature, thereby causing a significant capacity decrease. The air conditioner which can perform a dew prevention operation without being provided is provided.
[Selection] Figure 1

Description

本発明は、露付き防止制御装置を搭載した空気調和機に関する。   The present invention relates to an air conditioner equipped with a dew prevention control device.

従来、空気調和機の露付き防止制御装置においては、膨張弁を絞ることによる室内熱交換器の能力低減により露付を防止しているものがあった。   Conventionally, some dew prevention control devices for air conditioners have prevented dew condensation by reducing the capacity of the indoor heat exchanger by restricting the expansion valve.

例えば、特許文献1記載の発明に係る空気調和装置の運転制御装置では室内機の吸い込み湿度によって吐出冷媒温度の制御目標値を変化することにより能力を高く維持していた。   For example, in the operation control device for an air conditioner according to the invention described in Patent Document 1, the ability is maintained high by changing the control target value of the discharged refrigerant temperature according to the suction humidity of the indoor unit.

以下に、従来の空気調和機の露付き防止制御装置について説明する。   Below, the dew prevention control apparatus of the conventional air conditioner is demonstrated.

図11は従来の空気調和機の露付き防止制御装置である。4は圧縮機で、5は室外熱交換器で、7は電動膨張弁であり、1の室内熱交換器とを順次接続している。   FIG. 11 shows a conventional dew prevention control device for an air conditioner. 4 is a compressor, 5 is an outdoor heat exchanger, 7 is an electric expansion valve, and sequentially connects with one indoor heat exchanger.

17は、冷房運転時に室内熱交換器1における冷媒の蒸発温度を検出する蒸発温度検出手段であり、10は、冷房運転時に室外熱交換器5における冷媒の凝縮温度を検出する凝縮温度検出手段であり、蒸発温度検出手段17と凝縮温度検出手段10の出力を受け、そのときの最適な冷凍効果を与える吐出冷媒温度の最適温度を演算する演算手段18と、吐出冷媒温度を検出する吐出温度検出手段19と、吐出温度検出手段19の出力を受け、演算手段18で演算された最適温度を吐出冷媒温度の制御目標値として電動膨張弁7の開度を制御する開度制御手段20とを設けたものである。   17 is an evaporating temperature detecting means for detecting the evaporating temperature of the refrigerant in the indoor heat exchanger 1 during the cooling operation, and 10 is a condensing temperature detecting means for detecting the condensing temperature of the refrigerant in the outdoor heat exchanger 5 during the cooling operation. Yes, receiving the outputs of the evaporating temperature detecting means 17 and the condensing temperature detecting means 10, calculating means 18 for calculating the optimum temperature of the discharged refrigerant temperature which gives the optimum refrigeration effect at that time, and discharging temperature detection for detecting the discharged refrigerant temperature Means 19 and an opening degree control means 20 that receives the output of the discharge temperature detection means 19 and controls the opening degree of the electric expansion valve 7 using the optimum temperature calculated by the calculation means 18 as a control target value of the discharge refrigerant temperature. It is a thing.

21は変更手段であり、湿度検出手段22で検出される吸込空気の湿度が所定値よりも高くなると吐出冷媒温度の制御目標値が最適温度よりも一定値だけ高い値に変更されるので、吐出冷媒温度の制御目標値に適合する吸入冷媒温度も高くなり、それに応じて電動膨張弁7の開度が絞られて、吸入冷媒の過熱度が高くなるように制御される。   21 is a changing means, and when the humidity of the intake air detected by the humidity detecting means 22 becomes higher than a predetermined value, the control target value of the discharge refrigerant temperature is changed to a value higher than the optimum temperature by a constant value. The intake refrigerant temperature that matches the control target value of the refrigerant temperature is also increased, and the opening degree of the electric expansion valve 7 is throttled accordingly, and the superheat degree of the intake refrigerant is controlled to be increased.

すなわち、室内熱交換器1の出口側の冷媒状態が乾き側に維持され、室内熱交換器1の能力が低減して露付が防止されていた。
特開平4−98049号公報
That is, the refrigerant state on the outlet side of the indoor heat exchanger 1 is maintained on the dry side, the capacity of the indoor heat exchanger 1 is reduced, and dew is prevented.
JP-A-4-98049

しかしながら、前記従来の構成では、膨張弁を絞ることにより室内熱交換器1の出口側の冷媒状態を乾き側に維持されるため、実際には室内熱交換器1の能力が著しく低下するとともに、室内熱交換器1を有効に活用できないことから蒸発温度が低下し、室内熱交換器1が凍結するという欠点があった。   However, in the conventional configuration, the refrigerant state on the outlet side of the indoor heat exchanger 1 is maintained on the dry side by restricting the expansion valve, so that the capacity of the indoor heat exchanger 1 is actually significantly reduced. Since the indoor heat exchanger 1 cannot be used effectively, there is a disadvantage that the evaporation temperature is lowered and the indoor heat exchanger 1 is frozen.

本発明は、上記従来の課題を解決するものであり、露付き条件における冷却性能を著しく低下させることなく露付きを防止させる空気調和機の制御装置を提供することを目的とする。   The present invention solves the above-described conventional problems, and an object thereof is to provide an air conditioner control device that prevents dew without significantly reducing the cooling performance under dew conditions.

前記従来の課題を解決するために、本発明の露付防止制御装置は、蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機に
おいて、露付条件検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置とを有し、前記露付条件検出手段で露付条件が検出されない場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して前記室外ファン回転数制御手段により増減回転する一方、前記露付条件検出手段で露付条件が検出された場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数(R)をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することを特徴としており、露付運転中は凝縮温度上昇による能力低下を蒸発温度上昇による冷媒循環量増加でカバーすることにより、著しい能力低下を起こさないことを目的とする。
In order to solve the above-mentioned conventional problems, an anti-dew condensation control device according to the present invention is an air conditioner configured by an indoor unit having an evaporator and an indoor fan, and an outdoor unit having a condenser and an outdoor fan. A dew condition detecting means, a condensing temperature detecting means, an outdoor fan rotation speed control means, and an outdoor fan rotation speed storage device, and if the dew condition is not detected by the dew condition detection means, the outdoor fan rotation The number is increased or decreased by the outdoor fan rotation speed control means aiming at a target condensation temperature (Tc1), while the outdoor fan rotation speed storage device is detected when the dew condition is detected by the dew condition detection means. To store the current outdoor fan rotational speed (R), decelerate a predetermined rotational speed (R1) from the rotational speed stored in the outdoor fan rotational speed storage device, and raise the evaporation temperature. Condensation temperature When the temperature (Tc2) which is higher than the target condensation temperature (Tc1) is exceeded by the load fluctuation, the temperature (Tc2) higher than the target condensation temperature (Tc1) is exceeded. Returning to the current outdoor fan rotational speed (R) stored in the outdoor fan rotational speed storage device, the outdoor fan rotational speed is decelerated again below the target condensing temperature (Tc1), and from the target condensing temperature. When the temperature (Tc3) is lower than the predetermined temperature, the rotation speed (R) stored in the outdoor fan rotation speed storage device is reset, and the condensation temperature exceeds the limit temperature (Tc4). Is characterized in that the outdoor fan is rotated the strongest and the current outdoor fan speed (R) is memorized again. During the dew operation, the capacity reduction due to the increase in the condensation temperature is caused by the refrigerant circulation due to the increase in the evaporation temperature. By covering with increasing amounts, an object may not cause significant capacity decrease.

本発明の空気調和機の露付き防止制御装置は、露付防止運転中に著しい能力低下を起こすことなく室内機での露付を防ぎ、また室内熱交換器を凍結させることなく快適な空間を提供することができる。   The dew prevention control device for an air conditioner according to the present invention prevents dew condensation in the indoor unit without causing a significant decrease in capacity during the dew prevention operation, and creates a comfortable space without freezing the indoor heat exchanger. Can be provided.

第1の発明は、蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、露付条件検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置とを有し、前記露付条件検出手段で露付条件が検出されない場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して前記室外ファン回転数制御手段により増減回転する一方、前記露付条件検出手段で露付条件が検出された場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数(R)をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することにより、露付防止運転中に著しい能力低下を起こすことなく室内機での露付を防ぎ、また室内熱交換器を凍結させることなく快適な空間を提供することができる。   A first aspect of the present invention is an air conditioner composed of an indoor unit having an evaporator and an indoor fan, an outdoor unit having a condenser and an outdoor fan, a dew condition detecting means, a condensation temperature detecting means, and an outdoor fan. In the case where the rotation speed control means and the outdoor fan rotation speed storage device are provided and the dew condition is not detected by the dew condition detection means, the outdoor fan speed is set to the outdoor temperature aiming at the target condensation temperature (Tc1). While the rotation speed is increased / decreased by the fan rotation speed control means, and the exposure condition detection means detects the exposure condition, the outdoor fan rotation speed storage device stores the current outdoor fan rotation speed (R). A temperature that is higher than the target condensing temperature (Tc1) by a predetermined temperature after decelerating the predetermined revolving speed (R1) and increasing the evaporation temperature from the revolving speed stored in the outdoor fan rotational speed storage device. (Tc ) When the temperature (Tc2) higher than the target condensation temperature (Tc1) by a predetermined temperature is exceeded due to load fluctuation, the current value stored in the outdoor fan rotation speed storage device is stored. Returning to the outdoor fan rotation speed (R), the outdoor fan rotation speed is decelerated again below the target condensation temperature (Tc1), and becomes a temperature (Tc3) or less lower than the target condensation temperature by a predetermined temperature. In such a case, the rotational speed (R) stored in the outdoor fan rotational speed storage device is reset, and when the condensation temperature exceeds the limit temperature (Tc4), the outdoor fan is rotated the strongest and the current By storing the outdoor fan speed (R), it is possible to prevent dew condensation in the indoor unit without causing a significant decrease in capacity during dew prevention operation, and to provide a comfortable space without freezing the indoor heat exchanger. Rukoto can.

第2の発明は、蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、露付条件検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置と計時手段とを有し、前記露付条件検出手段で露付条件が検出されない場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して室外ファン回転数制御手段により増減回転する一方、前記露付条件検出手段で露付条件が検出されてから、前記計時手段によって計時される時間(t)が所定の時間(t1)以上経過した場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よ
りも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することにより、露付防止運転中に著しい能力低下を起こすことなく室内機での露付を防ぎ、また室内熱交換器を凍結させることなく快適な空間を提供することができる。
According to a second aspect of the present invention, there is provided an air conditioner comprising an indoor unit having an evaporator and an indoor fan, an outdoor unit having a condenser and an outdoor fan, and a dew condition detecting means, a condensation temperature detecting means, and an outdoor fan. If the dew condition is not detected by the dew condition detector, the outdoor fan speed is set to the target condensation temperature (Tc1). On the other hand, the outdoor fan rotation speed control means increases or decreases the rotation, and the time (t) timed by the time measuring means has exceeded a predetermined time (t1) since the exposure condition is detected by the exposure condition detection means. In this case, the outdoor fan rotational speed storage device stores the current outdoor fan rotational speed (R), and the predetermined rotational speed (R1) is decelerated from the rotational speed stored by the outdoor fan rotational speed storage device. Steamed After the temperature is raised, it is monitored that the temperature is lower than the target condensation temperature (Tc1) by a predetermined temperature higher than the target condensation temperature (Tc1), and a predetermined temperature higher than the target condensation temperature (Tc1) due to load fluctuations. When the temperature exceeds a higher temperature (Tc2), the outdoor fan rotation speed storage device stores the current outdoor fan rotation speed (R), and the outdoor fan rotation is again below the target condensation temperature (Tc1). The number of revolutions is decelerated, and when the temperature falls below a predetermined temperature (Tc3) lower than the target condensation temperature, the number of revolutions stored in the outdoor fan revolution number storage device is reset, and the condensation temperature is limited. When the temperature (Tc4) is exceeded, the outdoor fan is rotated the strongest and the current outdoor fan rotation speed (R) is memorized again, thereby causing a significant decrease in capacity during the dew prevention operation. Prevents Ku with dew in the indoor unit, and can provide a comfortable without freezing the indoor heat exchanger.

第3の発明は、蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、室内湿度検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置と計時手段とを有し、前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)以下の場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して室外ファン回転数制御手段により増減回転する一方、前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)を超えてから、前記計時手段によって計時される時間(t)が所定の時間(t1)以上経過した場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することにより、露付防止運転中に著しい能力低下を起こすことなく室内機での露付を防ぎ、また室内熱交換器を凍結させることなく快適な空間を提供することができる。   According to a third aspect of the present invention, there is provided an air conditioner comprising an indoor unit having an evaporator and an indoor fan, an outdoor unit having a condenser and an outdoor fan, and an indoor humidity detecting means, a condensing temperature detecting means, and an outdoor fan rotating. A number control means, an outdoor fan rotation speed storage device, and a timing means, and when the indoor humidity (h) detected by the indoor humidity detection means is equal to or lower than a predetermined humidity (h1), the outdoor fan rotation speed is The outdoor clock speed control means increases or decreases the rotation aiming at the target condensation temperature (Tc1), while the indoor humidity (h) detected by the indoor humidity detection means exceeds a predetermined humidity (h1), When the time (t) timed by the means has exceeded a predetermined time (t1), the outdoor fan rotational speed storage device stores the current outdoor fan rotational speed (R) and the outdoor fan rotational speed. Record After a predetermined rotational speed (R1) is decelerated from the rotational speed stored in the apparatus to increase the evaporation temperature, the temperature is equal to or lower than a temperature (Tc2) higher by a predetermined temperature than the target condensation temperature (Tc1). When the temperature (Tc2) higher than the target condensation temperature (Tc1) by a predetermined temperature is exceeded due to load fluctuation, the current outdoor fan rotational speed (stored in the outdoor fan rotational speed storage device) is stored. Returning to R), the outdoor fan speed is reduced again below the target condensing temperature (Tc1), and when the temperature is lower than the target condensing temperature by a predetermined temperature (Tc3), When the rotational speed stored in the outdoor fan rotational speed storage device is reset and the condensation temperature exceeds the limit temperature (Tc4), the outdoor fan is rotated the strongest and the current outdoor fan rotational speed (R) is set again. Record By prevent dew with in-room unit without causing a significant capacity reduction during anti with dew operation, and it can provide a comfortable without freezing the indoor heat exchanger.

第4の発明は、蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、室内湿度検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置と計時手段と室内温度検出手段とを有し、前記室内温度検出手段で検出される室内温度(Tin)が所定の温度(Tin)以下の場合、または前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)以下の場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して室外ファン回転数制御手段により増減回転する一方、前記室内温度検出手段で検出される室内温度(Tin)が所定の温度(Tin)を超え、且つ前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)を超えてから、前記計時手段によって計時される時間(t)が所定の時間(t1)以上経過した場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することにより、露付防止運転中に著しい能力低下を起こすことなく室内機での
露付を防ぎ、また室内熱交換器を凍結させることなく快適な空間を提供することができる。
4th invention is an air conditioner comprised from the indoor unit which has an evaporator and an indoor fan, the outdoor unit which has a condenser and an outdoor fan, An indoor humidity detection means, a condensation temperature detection means, and outdoor fan rotation A number control means, an outdoor fan rotation speed storage device, a timing means, and an indoor temperature detection means, and the indoor temperature (Tin) detected by the indoor temperature detection means is equal to or lower than a predetermined temperature (Tin), or When the indoor humidity (h) detected by the indoor humidity detecting means is equal to or lower than a predetermined humidity (h1), the outdoor fan rotational speed is increased or decreased by the outdoor fan rotational speed control means aiming at the target condensation temperature (Tc1). On the other hand, the room temperature (Tin) detected by the room temperature detection means exceeds a predetermined temperature (Tin), and the room humidity (h) detected by the room humidity detection means is a predetermined humidity (h1). When the time (t) timed by the time measuring means has exceeded a predetermined time (t1) since the time exceeded, the outdoor fan speed storage device stores the current outdoor fan speed (R). A temperature that is higher than the target condensing temperature (Tc1) by a predetermined temperature after decelerating the predetermined revolving speed (R1) and increasing the evaporation temperature from the revolving speed stored in the outdoor fan rotational speed storage device. When the temperature (Tc2) that is higher than the target condensing temperature (Tc1) by a predetermined temperature is exceeded by the load fluctuation, the outdoor fan rotation speed storage device stores it. Returning to the current outdoor fan speed (R), the outdoor fan speed is decelerated again below the target condensing temperature (Tc1), and a temperature (Tc3) lower than the target condensing temperature by a predetermined temperature. In the case of the following, the rotation speed stored in the outdoor fan rotation speed storage device is reset, and when the condensation temperature exceeds the limit temperature (Tc4), the outdoor fan is rotated the strongest and the current By storing the outdoor fan speed (R), it is possible to prevent dew condensation in the indoor unit without causing a significant decrease in capacity during dew prevention operation, and to provide a comfortable space without freezing the indoor heat exchanger. can do.

第5の発明は、蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、室内湿度検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置と計時手段と室内温度検出手段と室外温度検出手段とを有し、前記室外温度検出手段で検出される室外温度(Tout)が所定の温度(Tout)を超えた場合、または前記室内温度検出手段で検出される室内温度(Tin)が所定の温度(Tin)以下の場合、または前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)以下の場合には、室外ファン回転数(R)は目標の凝縮温度(Tc1)を目指して室外ファン回転数制御手段により装置増減回転する一方、前記室外温度検出手段で検出される室外温度(Tout)が所定の温度(Tout)以下で、且つ前記室内温度検出手段で検出される室内温度(Tin)が所定の温度(Tin)を超え、且つ前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)を超えてから、前記計時手段によって計時される時間(t)が所定の時間(t1)以上経過した場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することにより、露付防止運転中に著しい能力低下を起こすことなく室内機での露付を防ぎ、また室内熱交換器を凍結させることなく快適な空間を提供することができる。   According to a fifth aspect of the present invention, there is provided an air conditioner comprising an indoor unit having an evaporator and an indoor fan, an outdoor unit having a condenser and an outdoor fan, and an indoor humidity detecting means, a condensing temperature detecting means, and an outdoor fan rotating. Number control means, outdoor fan rotation speed storage device, timing means, indoor temperature detection means, and outdoor temperature detection means, and the outdoor temperature (Tout) detected by the outdoor temperature detection means is a predetermined temperature (Tout). When it exceeds, or when the room temperature (Tin) detected by the room temperature detection means is equal to or lower than a predetermined temperature (Tin), or the room humidity (h) detected by the room humidity detection means is a predetermined humidity ( h1) In the following cases, the outdoor fan rotational speed (R) is increased or decreased by the outdoor fan rotational speed control means for the target condensation temperature (Tc1), and detected by the outdoor temperature detecting means. The outdoor temperature (Tout) to be detected is equal to or lower than a predetermined temperature (Tout), the indoor temperature (Tin) detected by the indoor temperature detection means exceeds a predetermined temperature (Tin), and is detected by the indoor humidity detection means. When the time (t) measured by the time measuring unit has exceeded a predetermined time (t1) after the indoor humidity (h) exceeds a predetermined humidity (h1), the outdoor fan rotation speed storage device To store the current outdoor fan rotational speed (R), decelerate a predetermined rotational speed (R1) from the rotational speed stored in the outdoor fan rotational speed storage device, and raise the evaporation temperature. The temperature (Tc2) which is higher than the condensation temperature (Tc1) by a predetermined temperature is monitored, and the temperature (Tc2) which is higher than the target condensation temperature (Tc1) by a predetermined temperature is exceeded due to the load fluctuation. The outdoor fan rotational speed (R) stored in the outdoor fan rotational speed storage device, the outdoor fan rotational speed is decelerated again below the target condensation temperature (Tc1), and the target When the temperature is lower than the condensation temperature by a predetermined temperature (Tc3) or less, the rotation number stored in the outdoor fan rotation number storage device is reset, and the condensation temperature exceeds the limit temperature (Tc4). The outdoor fan is rotated the strongest and the current outdoor fan rotation speed (R) is stored again, thereby preventing the indoor unit from being exposed without causing a significant decrease in capacity during the anti-dew operation. A comfortable space can be provided without freezing the heat exchanger.

以下、本発明の実施の形態について図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。
(実施の形態1)
図1は第1の実施の形態における空気調和機の制御装置の一例であり、図2は第1の実施の形態における空気調和機の露付運転時のフローを示す。
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
(Embodiment 1)
FIG. 1 is an example of a control device for an air conditioner according to the first embodiment, and FIG. 2 shows a flow during a dew operation of the air conditioner according to the first embodiment.

図1において、蒸発器31と、室内ファン32とを有する室内機33は、圧縮機34と、凝縮器35と、室外ファン36と、減圧装置37とを有した室外機38と環状に接続されている。室内機33は露付条件検出手段39を、室外機38は凝縮温度検出手段40と室外ファン回転数制御手段41と室外ファン回転数記憶装置42とをそれぞれ有している。   In FIG. 1, an indoor unit 33 having an evaporator 31 and an indoor fan 32 is annularly connected to an outdoor unit 38 having a compressor 34, a condenser 35, an outdoor fan 36, and a pressure reducing device 37. ing. The indoor unit 33 includes a dew condition detection unit 39, and the outdoor unit 38 includes a condensation temperature detection unit 40, an outdoor fan rotation speed control unit 41, and an outdoor fan rotation speed storage device 42.

以上のように構成された調和機の制御装置について、以下その動作を説明する。   The operation of the control device for a harmonic machine configured as described above will be described below.

圧縮機34から吐出した高圧ガス冷媒は凝縮器35で室外ファン36により熱交換されて液化し、減圧装置37で減圧された後に室内機33へ送られる。室内機33では蒸発器31で室内ファン32により熱交換されて低圧ガス化して再度圧縮機34へ戻る。このとき、室外ファン回転数制御手段41にて室外ファン回転数を増減して凝縮器35の温度を所定の温度へ保つため、常に快適な空調状態に保っている。負荷変動により室内機の湿度が上昇し露付条件になった場合には、露付防止運転に突入するが、詳細な動作については、図2の露付運転時のフローチャートを参照しながら説明する。   The high-pressure gas refrigerant discharged from the compressor 34 is heat-exchanged by the outdoor fan 36 in the condenser 35 and liquefied, and is decompressed by the decompression device 37 and then sent to the indoor unit 33. In the indoor unit 33, heat is exchanged by the indoor fan 32 in the evaporator 31, converted into low-pressure gas, and returns to the compressor 34 again. At this time, the outdoor fan rotational speed control means 41 increases or decreases the outdoor fan rotational speed to keep the temperature of the condenser 35 at a predetermined temperature, so that the air conditioning state is always kept comfortable. When the humidity of the indoor unit rises due to a load change and becomes a dew condition, the dew prevention operation is entered, but the detailed operation will be described with reference to the flowchart of the dew operation in FIG. .

通常運転しているSTEP1からSTEP2で露付条件検出手段39が露付条件を検出すれば、STEP3で室外ファン回転数記憶装置42が現在の室外ファン回転数(R)を記憶し、STEP4で室外ファン回転数(R)よりも所定の回転数(R1)だけ減速し、STEP5で露付制御突入時の回転数以上にならないように突入時回転数復帰カウンタを設定する。STEP6で凝縮温度検出手段40により凝縮温度(Tc)を検出し、STEP7で凝縮温度(Tc)が目標の凝縮温度よりも所定の温度だけ高い温度(Tc2)を超えたかの判定(以下過負荷判定とする)を行い、過負荷と判断された場合は、STEP8にて、凝縮温度(Tc)が、限界温度(Tc4)を超えたかの判定(限界判定)を行い、限界温度を超えていた場合は、STEP9で、室外ファン回転数(R)を通常制御中の最大値に設定し、STEP3へ戻る。また、STEP8で凝縮温度(R)が限界温度以下であった場合は、STEP10にて突入時回転数復帰判定を行い、回転数が復帰していない場合は、STEP11にて室外ファン回転数を復帰させ回転数復帰カウンタを更新し、回転数がすでに復帰している場合は回転数変更せずそれぞれSTEP6へ戻る。   If the exposure condition detecting means 39 detects the exposure condition in STEP1 to STEP2 during normal operation, the outdoor fan rotational speed storage device 42 stores the current outdoor fan rotational speed (R) in STEP3 and the outdoor in STEP4. Decrease by a predetermined rotation speed (R1) from the fan rotation speed (R), and set the rotation speed return counter at the time of entry so as not to exceed the rotation speed at the time of entry of the exposure control at STEP5. In STEP 6, the condensation temperature detection means 40 detects the condensation temperature (Tc), and in STEP 7, it is determined whether or not the condensation temperature (Tc) exceeds a target temperature (Tc2) higher than the target condensation temperature (hereinafter referred to as overload determination). If the condensation temperature (Tc) exceeds the limit temperature (Tc4) in STEP 8, it is determined whether the condensation temperature (Tc4) has exceeded the limit temperature. In STEP 9, the outdoor fan rotation speed (R) is set to the maximum value during normal control, and the process returns to STEP 3. Also, if the condensation temperature (R) is below the limit temperature in STEP 8, the in-rush rotation speed return determination is performed in STEP 10, and if the rotation speed has not recovered, the outdoor fan rotation speed is returned in STEP 11. The rotational speed return counter is updated, and if the rotational speed has already been recovered, the rotational speed is not changed and the process returns to STEP 6 respectively.

尚、STEP7過負荷判定されなかった場合は、STEP12へ進み、凝縮温度(Tc)が目標凝縮温度(Tc1)未満であるかを判断する。凝縮温度が目標凝縮温度以上の場合はSTEP6へ戻り、目標凝縮温度未満の場合は、STEP13にて、凝縮温度(Tc)が、軽負荷温度(Tc3)を未満であるかの判定(軽負荷判定)を行い、軽負荷と判定された場合は、STEP14にて室外ファン回転数記憶装置の記憶内容をクリアしSTEP3へ戻る。また、軽負荷判定されなかった場合においては、STEP15にて、突入時回転数復帰判定を行い、回転数がすでに突入時の回転数に復帰している場合は、STEP4へ戻り、復帰していない場合にはSTEP6へ戻る。以上のサイクルを繰り返すことにより、露付防止運転中に著しい能力低下を起こすことなく室内機での露付を防ぎ、また室内熱交換器を凍結させることなく快適な空間を提供できるとともに、負荷変動による過負荷状態においても対応可能な空気調和器を提供することができる。   If the STEP 7 overload is not determined, the process proceeds to STEP 12 to determine whether the condensation temperature (Tc) is lower than the target condensation temperature (Tc1). If the condensation temperature is equal to or higher than the target condensation temperature, the process returns to STEP 6. If the condensation temperature is lower than the target condensation temperature, it is determined in STEP 13 whether the condensation temperature (Tc) is lower than the light load temperature (Tc3) (light load determination). If the load is determined to be light, the content stored in the outdoor fan rotation speed storage device is cleared in STEP 14 and the process returns to STEP 3. If the light load is not determined, in STEP 15, a determination is made as to whether or not the engine speed has been returned to the entry speed. If the rotation speed has already returned to the entry speed, the process returns to STEP 4 and has not returned. If so, return to STEP 6. By repeating the above cycle, it is possible to prevent dew condensation in the indoor unit without causing a significant decrease in capacity during dew prevention operation, provide a comfortable space without freezing the indoor heat exchanger, and load fluctuations It is possible to provide an air conditioner that can cope with an overload condition caused by the above.

(実施の形態2)
図3は第2の実施の形態における空気調和機の制御装置の一例であり、図4は第2の実施の形態における空気調和機の露付運転時のフローを示す。
(Embodiment 2)
FIG. 3 is an example of an air conditioner control device according to the second embodiment, and FIG. 4 shows a flow during the dew operation of the air conditioner according to the second embodiment.

なお、すでに実施の形態で説明したものについては、同一符号を記し、詳細な説明は省略することとする。   Note that those already described in the embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図3において、43は計時手段であり露付条件検出手段39が露付条件を検出したときにタイマを起動させ、所定の時間経過した時点で露付運転に突入するものであり、第1の実施の形態と比べて、できる限り通常運転を行い冷凍性能,除湿性能を確保するものである。   In FIG. 3, 43 is a time measuring means, which starts a timer when the dew condition detection means 39 detects the dew condition, and enters the dew operation when a predetermined time elapses. Compared to the embodiment, the normal operation is performed as much as possible to ensure the refrigerating performance and the dehumidifying performance.

(実施の形態3)
図5は第3の実施の形態における空気調和機の制御装置の一例であり、図6は第3の実施の形態における空気調和機の露付運転時のフローを示す。なお、すでに実施の形態で説明したものについては、同一符号を記し、詳細な説明は省略することとする。
(Embodiment 3)
FIG. 5 is an example of an air conditioner control device according to the third embodiment, and FIG. 6 shows a flow during the dew operation of the air conditioner according to the third embodiment. Note that those already described in the embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図5において、44は室内湿度検出手段であり室内湿度(h)が所定の湿度を超えた場合にタイマを起動させ、所定の時間経過した時点で露付運転に突入するものであり、突入後の動作については、第1の実施の形態と同一のものである。   In FIG. 5, reference numeral 44 denotes indoor humidity detection means, which starts a timer when the indoor humidity (h) exceeds a predetermined humidity, and enters a dew operation when a predetermined time elapses. The operation is the same as that in the first embodiment.

(実施の形態4)
図7は第4の実施の形態における空気調和機の制御装置の一例であり、図8は第4の実施の形態における空気調和機の露付運転時のフローを示す。
(Embodiment 4)
FIG. 7 is an example of a control device for an air conditioner according to the fourth embodiment, and FIG. 8 shows a flow at the time of dew operation of the air conditioner according to the fourth embodiment.

なお、すでに実施の形態で説明したものについては、同一符号を記し、詳細な説明は省略することとする。   Note that those already described in the embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図7において、45室内温度検出手段であり、室内湿度(h)が所定の湿度を超え、且つ室内温度(Tin)が所定の温度を未満の場合にタイマを起動させ、所定の時間経過した時点で露付運転に突入するものであり、突入後の動作については、第1の実施の形態と同一のものである。   In FIG. 7, when 45 indoor temperature detection means, the indoor humidity (h) exceeds the predetermined humidity and the indoor temperature (Tin) is less than the predetermined temperature, the timer is started and a predetermined time has elapsed. The operation after the rush is the same as that of the first embodiment.

(実施の形態5)
図9は第5の実施の形態における空気調和機の制御装置の一例であり、図10は第2の実施の形態における空気調和機の露付運転時のフローを示す。
(Embodiment 5)
FIG. 9 is an example of an air conditioner control device according to the fifth embodiment, and FIG. 10 shows a flow during the dew operation of the air conditioner according to the second embodiment.

なお、すでに実施の形態で説明したものについては、同一符号を記し、詳細な説明は省略することとする。   Note that those already described in the embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図3において、46は外気温度検出手段であり室内湿度(h)が所定の湿度を超え、且つ室内温度(Tin)が所定の温度を超え、且つ外気温度が所定の温度以下の場合にタイマを起動させ、所定の時間経過した時点で露付運転に突入するものであり、突入後の動作については、第1の実施の形態と同一のものである。   In FIG. 3, reference numeral 46 denotes an outside air temperature detecting means, which sets a timer when the indoor humidity (h) exceeds a predetermined humidity, the indoor temperature (Tin) exceeds a predetermined temperature, and the outside air temperature is equal to or lower than a predetermined temperature. It is activated and enters a dew operation when a predetermined time elapses. The operation after the entry is the same as that of the first embodiment.

本発明の空気調和機の制御装置は、露付き条件における冷却性能を著しく低下させることなく露付きを防止させる空気調和機の制御装置を提供することができるので、分離型の空気調和機だけでなく一体型の空気調和機にも適用できる。   The air conditioner control device of the present invention can provide an air conditioner control device that prevents dew without significantly reducing the cooling performance under the dew conditions, so that only the separation type air conditioner can be provided. It can also be applied to an integrated air conditioner.

本発明の実施の形態1における空気調和機の構成図The block diagram of the air conditioner in Embodiment 1 of this invention 本発明の実施の形態1における空気調和機の露付運転時のフローチャートThe flowchart at the time of dew operation of the air conditioner in Embodiment 1 of this invention 本発明の実施の形態2における空気調和機の構成図The block diagram of the air conditioner in Embodiment 2 of this invention 本発明の実施の形態2における空気調和機の露付運転時のフローチャートThe flowchart at the time of dew operation of the air conditioner in Embodiment 2 of this invention 本発明の実施の形態3における空気調和機の構成図The block diagram of the air conditioner in Embodiment 3 of this invention 本発明の実施の形態3における空気調和機の露付運転時のフローチャートThe flowchart at the time of dew operation of the air conditioner in Embodiment 3 of this invention 本発明の実施の形態4における空気調和機の構成図The block diagram of the air conditioner in Embodiment 4 of this invention 本発明の実施の形態4における空気調和機の露付運転時のフローチャートThe flowchart at the time of dew operation of the air conditioner in Embodiment 4 of this invention 本発明の実施の形態5における電気端子の斜視図The perspective view of the electrical terminal in Embodiment 5 of this invention 本発明の実施の形態5における他の電気端子の斜視図The perspective view of the other electrical terminal in Embodiment 5 of this invention 従来の空気調和機の構成図Configuration diagram of conventional air conditioner

符号の説明Explanation of symbols

1、31 室内熱交換器
32 室内ファン
33 導電線接続部
4、34 圧縮機
5、35 室外熱交換器
36 室外ファン
7、37 減圧装置
38 室外機
39 露付条件検出手段
10、40 凝縮温度検出手段
41 室外ファン回転数制御手段
42 室外ファン回転数記憶装置
43 計時手段
44 室内湿度検出手段
45 室内温度検出手段
46 外気温度検出手段
17 蒸発温度検出手段
18 演算手段
19 吐出温度検出手段
20 開度制御手段
21 変更手段
Tc 凝縮温度
Tc1 目標の凝縮温度
Tc2 目標の凝縮温度よりも所定の温度だけ高い温度
Tc3 目標の凝縮温度よりも所定の温度だけ低い温度
Tc4 限界温度
R 室外ファン回転数
R1 所定の回転数
t 計時される時間
t1 所定の時間
h 室内湿度
h1 所定の室内湿度
Tin 室内温度
Tin1 所定の室内湿度
Tout 室外温度
Tout1 所定の室外温度
DESCRIPTION OF SYMBOLS 1, 31 Indoor heat exchanger 32 Indoor fan 33 Conductive wire connection part 4, 34 Compressor 5, 35 Outdoor heat exchanger 36 Outdoor fan 7, 37 Pressure reducing device 38 Outdoor unit 39 Dew condition detection means 10, 40 Condensation temperature detection Means 41 Outdoor fan rotation speed control means 42 Outdoor fan rotation speed storage device 43 Timing means 44 Indoor humidity detection means 45 Indoor temperature detection means 46 Outdoor temperature detection means 17 Evaporation temperature detection means 18 Calculation means 19 Discharge temperature detection means 20 Opening control Means 21 Changing means Tc Condensing temperature Tc1 Target condensing temperature Tc2 Temperature higher than the target condensing temperature by a predetermined temperature Tc3 Temperature lower than the target condensing temperature by a predetermined temperature Tc4 Limit temperature R Outdoor fan rotation speed R1 Predetermined rotation Number t Time to be measured t1 Predetermined time h Indoor humidity h1 Predetermined indoor humidity Tin Indoor Degree Tin1 predetermined indoor humidity Tout outdoor temperature Tout1 predetermined outdoor temperature

Claims (5)

蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、露付条件検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置とを有し、前記露付条件検出手段で露付条件が検出されない場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して前記室外ファン回転数制御手段により増減回転する一方、前記露付条件検出手段で露付条件が検出された場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数(R)を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数(R)をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することを特徴とした空気調和機。 In an air conditioner composed of an indoor unit having an evaporator and an indoor fan, an outdoor unit having a condenser and an outdoor fan, a dew condition detection means, a condensation temperature detection means, an outdoor fan rotation speed control means, and an outdoor unit A fan speed storage device, and when the dew condition is not detected by the dew condition detection means, the outdoor fan speed is set by the outdoor fan speed control means for a target condensation temperature (Tc1). On the other hand, when the dew condition is detected by the dew condition detecting means, the outdoor fan rotation speed storage device stores the current outdoor fan rotation speed (R) and the outdoor fan rotation speed. After the predetermined rotation speed (R1) is decelerated from the rotation speed stored in the storage device and the evaporation temperature is increased, the temperature is equal to or lower than the temperature (Tc2) higher than the target condensation temperature (Tc1) by a predetermined temperature. When the temperature (Tc2) higher than the target condensation temperature (Tc1) by a predetermined temperature is exceeded due to load fluctuation, the current outdoor fan speed stored in the outdoor fan speed storage device is stored. Returning to (R), the outdoor fan rotation speed (R) is decelerated again below the target condensation temperature (Tc1), and becomes equal to or lower than a temperature (Tc3) lower than the target condensation temperature by a predetermined temperature. In this case, the rotational speed (R) stored in the outdoor fan rotational speed storage device is reset, and when the condensation temperature exceeds the limit temperature (Tc4), the outdoor fan is rotated the strongest and the current outdoor An air conditioner characterized by memorizing fan rotation speed (R). 蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、露付条件検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置と計時手段とを有し、前記露付条件検出手段で露付条件が検出されない場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して室外ファン回転数制御手段により増減回転する一方、前記露付条件検出手段で露付条件が検出されてから、前記計時手段によって計時される時間(t)が所定の時間(t1)以上経過した場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数(R)をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することを特徴とした空気調和機。 In an air conditioner composed of an indoor unit having an evaporator and an indoor fan, an outdoor unit having a condenser and an outdoor fan, a dew condition detection means, a condensation temperature detection means, an outdoor fan rotation speed control means, and an outdoor unit When the dew condition is not detected by the dew condition detector, the outdoor fan speed is controlled so as to achieve the target condensation temperature (Tc1). When the time (t) measured by the time measuring means has exceeded a predetermined time (t1) after the exposure condition is detected by the exposure condition detecting means, the outdoor condition is increased or decreased by the means. The fan rotational speed storage device stores the current outdoor fan rotational speed (R), and the evaporation speed is increased by decelerating the predetermined rotational speed (R1) from the rotational speed stored by the outdoor fan rotational speed storage device. After that, it is monitored that the temperature is equal to or lower than a temperature (Tc2) higher than the target condensation temperature (Tc1) by a predetermined temperature, and a temperature (Tc1) higher than the target condensation temperature (Tc1) by the load fluctuation ( If Tc2) is exceeded, the current outdoor fan rotational speed (R) stored in the outdoor fan rotational speed storage device is restored, and the outdoor fan rotational speed is decelerated again below the target condensation temperature (Tc1). In addition, when the temperature is equal to or lower than a temperature (Tc3) lower than the target condensation temperature by a predetermined temperature, the rotation speed (R) stored in the outdoor fan rotation speed storage device is reset, and the condensation temperature becomes the limit temperature. An air conditioner characterized in that when (Tc4) is exceeded, the outdoor fan is rotated the strongest and the current outdoor fan speed (R) is stored again. 蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、室内湿度検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置と計時手段とを有し、前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)以下の場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して室外ファン回転数制御手段により増減回転する一方、前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)を超えてから、前記計時手段によって計時される時間(t)が所定の時間(t1)以上経過した場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記
室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することを特徴とした空気調和機。
In an air conditioner composed of an indoor unit having an evaporator and an indoor fan, an outdoor unit having a condenser and an outdoor fan, an indoor humidity detecting means, a condensing temperature detecting means, an outdoor fan rotation speed control means, and an outdoor fan When the indoor humidity (h) detected by the indoor humidity detecting means is equal to or lower than a predetermined humidity (h1), the outdoor fan rotational speed is set to a target condensation temperature (Tc1). ) By the outdoor fan rotation speed control means, while the indoor humidity (h) detected by the indoor humidity detection means exceeds a predetermined humidity (h1), the time measured by the time measurement means When (t) exceeds a predetermined time (t1), the outdoor fan rotational speed storage device stores the current outdoor fan rotational speed (R), which is stored in the outdoor fan rotational speed storage device. After decelerating the predetermined rotational speed (R1) from the rotational speed to increase the evaporation temperature, it is monitored that the temperature is equal to or lower than the target temperature (Tc2) higher than the target condensation temperature (Tc1), When the temperature (Tc2) higher than the target condensing temperature (Tc1) by a predetermined temperature is exceeded due to load fluctuation, the current outdoor fan speed (R) stored in the outdoor fan speed memory device is returned. The outdoor fan rotation speed is decelerated again below the target condensation temperature (Tc1), and when the temperature falls below the target condensation temperature (Tc3) by a predetermined temperature, the outdoor fan rotation is reduced. When the rotation speed stored in the number storage device is reset and the condensation temperature exceeds the limit temperature (Tc4), the outdoor fan is rotated the strongest and the current outdoor fan rotation speed (R) is stored again. Special And air conditioner.
蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、室内湿度検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置と計時手段と室内温度検出手段とを有し、前記室内温度検出手段で検出される室内温度(Tin)が所定の温度(Tin1)以下の場合、または前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)以下の場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して室外ファン回転数制御手段により増減回転する一方、前記室内温度検出手段で検出される室内温度(Tin)が所定の温度(Tin1)を超え、且つ前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)を超えてから、前記計時手段によって計時される時間(t)が所定の時間(t1)以上経過した場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することを特徴とした空気調和機。 In an air conditioner composed of an indoor unit having an evaporator and an indoor fan, an outdoor unit having a condenser and an outdoor fan, an indoor humidity detecting means, a condensing temperature detecting means, an outdoor fan rotation speed control means, and an outdoor fan A rotation speed storage device, a time measuring means, and an indoor temperature detecting means, and when the indoor temperature (Tin) detected by the indoor temperature detecting means is equal to or lower than a predetermined temperature (Tin1), or detected by the indoor humidity detecting means When the indoor humidity (h) is less than or equal to the predetermined humidity (h1), the outdoor fan rotational speed is increased or decreased by the outdoor fan rotational speed control means for the target condensation temperature (Tc1), while the indoor temperature Whether the indoor temperature (Tin) detected by the detection means exceeds a predetermined temperature (Tin1) and the indoor humidity (h) detected by the indoor humidity detection means exceeds a predetermined humidity (h1) When the time (t) timed by the time measuring means has exceeded a predetermined time (t1), the outdoor fan rotational speed storage device stores the current outdoor fan rotational speed (R), and the outdoor A temperature (Tc2) that is higher than the target condensing temperature (Tc1) by a predetermined temperature (Tc2) after decelerating the predetermined rotation speed (R1) and increasing the evaporation temperature from the rotation speed stored in the fan rotation speed storage device. If the temperature (Tc2) higher than the target condensation temperature (Tc1) by a predetermined temperature is exceeded due to load fluctuations, the current outdoor temperature stored in the outdoor fan rotational speed storage device is stored. Returning to the fan speed (R), the outdoor fan speed is decelerated again below the target condensing temperature (Tc1), and is below a temperature (Tc3) lower than the target condensing temperature by a predetermined temperature. If the condensing temperature exceeds the limit temperature (Tc4), the outdoor fan is rotated most strongly and the current outdoor fan rotation is again performed. An air conditioner characterized by storing a number (R). 蒸発器と室内ファンとを有する室内機と凝縮器と室外ファンとを有する室外機とから構成された空気調和機において、室内湿度検出手段と凝縮温度検出手段と室外ファン回転数制御手段と室外ファン回転数記憶装置と計時手段と室内温度検出手段と室外温度検出手段とを有し、前記室外温度検出手段で検出される室外温度(Tout)が所定の温度(Tout1)を超えている場合、または前記室内温度検出手段で検出される室内温度(Tin)が所定の温度(Tin1)未満の場合、または前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)以下の場合には、室外ファン回転数は目標の凝縮温度(Tc1)を目指して室外ファン回転数制御手段により装置増減回転する一方、前記室外温度検出手段で検出される室外温度(Tout)が所定の温度(Tout1)以下で、且つ前記室内温度検出手段で検出される室内温度(Tin)が所定の温度(Tin1)を超え、且つ前記室内湿度検出手段で検出される室内湿度(h)が所定の湿度(h1)を超えてから、前記計時手段によって計時される時間(t)が所定の時間(t1)以上経過した場合には、前記室外ファン回転数記憶装置により、現在の室外ファン回転数(R)を記憶し、前記室外ファン回転数記憶装置が記憶した回転数よりも所定の回転数(R1)を減速して蒸発温度を上昇させた後、前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)以下であることを監視させ、負荷変動により前記目標の凝縮温度(Tc1)よりも所定の温度だけ高い温度(Tc2)を超えた場合には、前記室外ファン回転数記憶装置が記憶した現在の室外ファン回転数(R)へ戻り、前記目標の凝縮温度(Tc1)以下で再度前記室外ファン回転数を減速させ、また、前記目標凝縮温度よりも所定の温度だけ低い温度(Tc3)以下になった場合には、前記室外ファン回転数記憶装置の記憶する回転数をリセットし、凝縮温度が限界温度(Tc4)を超えた場合には、室外ファンを最強回転させて、再度現在の室外ファン回転数(R)を記憶することを特徴とした空気調和機。 In an air conditioner composed of an indoor unit having an evaporator and an indoor fan, an outdoor unit having a condenser and an outdoor fan, an indoor humidity detecting means, a condensing temperature detecting means, an outdoor fan rotation speed control means, and an outdoor fan A rotation speed storage device, a timing means, an indoor temperature detection means, and an outdoor temperature detection means, and the outdoor temperature (Tout) detected by the outdoor temperature detection means exceeds a predetermined temperature (Tout1), or When the indoor temperature (Tin) detected by the indoor temperature detecting means is lower than a predetermined temperature (Tin1), or when the indoor humidity (h) detected by the indoor humidity detecting means is less than a predetermined humidity (h1) The outdoor fan rotation speed is increased or decreased by the outdoor fan rotation speed control means while aiming at the target condensation temperature (Tc1), while the outdoor temperature detected by the outdoor temperature detection means. (Tout) is equal to or lower than a predetermined temperature (Tout1), the indoor temperature (Tin) detected by the indoor temperature detecting means exceeds a predetermined temperature (Tin1), and the indoor humidity detected by the indoor humidity detecting means When the time (t) timed by the time measuring means has exceeded a predetermined time (t1) after (h) exceeds a predetermined humidity (h1), the outdoor fan rotational speed storage device The outdoor fan rotational speed (R) is stored, the predetermined rotational speed (R1) is decelerated from the rotational speed stored in the outdoor fan rotational speed storage device, and the evaporation temperature is increased. When the temperature (Tc2) which is higher than the target condensation temperature (Tc1) is exceeded by the load fluctuation, the temperature (Tc2) higher than the target condensation temperature (Tc1) is exceeded. Returning to the current outdoor fan rotational speed (R) stored in the outdoor fan rotational speed storage device, the outdoor fan rotational speed is decelerated again below the target condensing temperature (Tc1), and more than the target condensing temperature. When the temperature is lower than a predetermined temperature (Tc3) or lower, the rotational speed stored in the outdoor fan rotational speed storage device is reset, and when the condensation temperature exceeds the limit temperature (Tc4), the outdoor fan , And the current outdoor fan rotation speed (R) is stored again.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019528A (en) * 2014-06-26 2014-09-03 东元总合科技(杭州)有限公司 Efficient and energy-saving control algorithm for variable frequency air conditioner
CN113566402A (en) * 2021-08-31 2021-10-29 美的集团武汉暖通设备有限公司 Fan rotating speed adjusting method, air conditioner and readable storage medium
CN115111791A (en) * 2022-06-24 2022-09-27 深圳市酷凌时代科技有限公司 Water chiller, dust deposition detection method and device of condenser and readable storage medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019528A (en) * 2014-06-26 2014-09-03 东元总合科技(杭州)有限公司 Efficient and energy-saving control algorithm for variable frequency air conditioner
CN104019528B (en) * 2014-06-26 2016-06-22 东元总合科技(杭州)有限公司 The energy-efficient operating control algolithm of convertible frequency air-conditioner
CN113566402A (en) * 2021-08-31 2021-10-29 美的集团武汉暖通设备有限公司 Fan rotating speed adjusting method, air conditioner and readable storage medium
CN115111791A (en) * 2022-06-24 2022-09-27 深圳市酷凌时代科技有限公司 Water chiller, dust deposition detection method and device of condenser and readable storage medium
CN115111791B (en) * 2022-06-24 2024-02-09 深圳市酷凌时代科技有限公司 Water chiller, method and device for detecting dust deposit of condenser and readable storage medium

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