JP2006275392A - Air conditioner - Google Patents

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JP2006275392A
JP2006275392A JP2005094243A JP2005094243A JP2006275392A JP 2006275392 A JP2006275392 A JP 2006275392A JP 2005094243 A JP2005094243 A JP 2005094243A JP 2005094243 A JP2005094243 A JP 2005094243A JP 2006275392 A JP2006275392 A JP 2006275392A
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indoor
revolutions
set value
temperature
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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

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of improving amenity by securing dehumidification by changing an indoor fan speed in response to heat load by connecting a plurality of indoor units. <P>SOLUTION: This air conditioner detects an indoor suction temperature, an indoor heat exchanger temperature and a compressor frequency, and a supply temperature can be kept constant by lowering the indoor fan speed by a prescribed rotational frequency, thus the plurality of indoor machines can be simultaneously operated without impairing amenity. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、除湿能力を確保する制御方法を搭載した空気調和機に関するものである。   The present invention relates to an air conditioner equipped with a control method for ensuring dehumidification capability.

従来、この種空気調和機は、図１のフローチャート及び図２のタイムチャート並びに図３のブロック図に示すように、室外機１台に対し、室内機複数台接続であることを特徴とするツインまたはトリプル接続は、同一の部屋に付け同時に運転することにより、部屋の温度分布を改善し快適性を向上させるものであるが、各室内機のファン制御は室内機１台接続と同一で、冷房または除湿運転時の除湿量を確保するために、運転開始時にファンの運転遅延を実施していた（例えば、特許文献１参照）。
特開２００３−１０６６２７号公報 Conventionally, as shown in the flowchart of FIG. 1, the time chart of FIG. 2, and the block diagram of FIG. 3, this type of air conditioner is a twin characterized in that a plurality of indoor units are connected to one outdoor unit. Or triple connection improves the temperature distribution of the room and improves comfort by operating in the same room at the same time, but the fan control of each indoor unit is the same as the connection of one indoor unit. Or in order to ensure the dehumidification amount at the time of a dehumidification driving | operation, the driving | operation delay of the fan was implemented at the time of a driving | operation start (for example, refer patent document 1).
JP 2003-106627 A

しかしながら、前記従来の構成では、室内機が２台以上接続されているため、冷房または除湿運転開始時、ある一定時間ファン遅延制御を実施しても室内機１台当りの能力は半分になることから、特に室内の熱負荷が高い場合熱交換器温度が上昇して吹出し温度が上昇するため、除湿能力が著しく低下し快適性を損なうという課題を有していた。   However, in the conventional configuration, since two or more indoor units are connected, the capacity per indoor unit is halved even if the fan delay control is performed for a certain time at the start of cooling or dehumidifying operation. Therefore, particularly when the indoor heat load is high, the heat exchanger temperature rises and the blowing temperature rises, so that the dehumidifying ability is remarkably lowered and the comfort is impaired.

本発明は前記従来の課題を解決するもので、室内機複数台接続で熱負荷に応じて、室内ファン速を変更することにより徐湿量を確保し快適性を向上させることを可能にした空気調和機を提供することを目的とする。   The present invention solves the above-described conventional problems, and air that can secure a gradual humidity and improve comfort by changing the indoor fan speed in accordance with the heat load by connecting a plurality of indoor units. The purpose is to provide a harmony machine.

前記従来の課題を解決するために、本発明の空気調和機は第４図の制御ブロック図に示すように、圧縮機ＯＮ／ＯＦＦ検出手段、室内機接続台数検出手段、前記室内機接続台数記憶手段、室内ファン速設定値記憶手段、室内熱交換器温度検出手段、前記設定温度記憶手段より構成され、冷房または除湿運転時において、圧縮機ＯＮ検出後室内機接続台数を検出し、前記室内機が複数台接続を検出したら室内熱交換器温度を検出し、前記熱交換器設定値と比較し温度が設定値を上回ったら、室内ファン速を所定回転数低下させるものである。   In order to solve the conventional problems, an air conditioner according to the present invention includes a compressor ON / OFF detection means, indoor unit connected number detection means, and indoor unit connected number storage as shown in the control block diagram of FIG. Means, indoor fan speed set value storage means, indoor heat exchanger temperature detection means, and set temperature storage means, and during cooling or dehumidifying operation, the number of connected indoor units is detected after detecting the compressor ON, and the indoor unit When detecting the connection of a plurality of units, the temperature of the indoor heat exchanger is detected. When the temperature exceeds the set value compared with the set value of the heat exchanger, the indoor fan speed is decreased by a predetermined number of revolutions.

これによって、除湿量を確保し快適性向上を可能としたものである。   This ensures a dehumidifying amount and improves comfort.

また本発明の空気調和機は、第５図の制御ブロック図に示すように、圧縮機ＯＮ／ＯＦＦ検出手段、室内機接続台数検出手段、前記室内機接続台数記憶手段、室内ファン速設定値記憶手段、室内吸込み温度検出手段、前記設定温度記憶手段より構成され、冷房または除湿運転開始時に、圧縮機ＯＮ検出後後室内機接続台数を検出し、前記室内機が複数台接続を検出したら、室内吸込み温度を検出し、前記吸込み設定値と比較し、温度が設定値を上回ったら、室内ファン速を所定回転数低下させるものである。   As shown in the control block diagram of FIG. 5, the air conditioner of the present invention has compressor ON / OFF detection means, indoor unit connection number detection means, indoor unit connection number storage means, indoor fan speed set value storage. Means, indoor suction temperature detecting means, and set temperature storage means, and at the start of cooling or dehumidifying operation, after detecting the compressor ON, the number of connected indoor units is detected, and when the indoor unit detects a plurality of connected units, The suction temperature is detected and compared with the suction set value. If the temperature exceeds the set value, the indoor fan speed is decreased by a predetermined number of revolutions.

これによって、除湿量を確保し快適性向上を可能としたものである。   This ensures a dehumidifying amount and improves comfort.

また本発明の空気調和機は、第６図の制御ブロック図に示すように、圧縮機ＯＮ／ＯＦＦ検出手段、ファン速設定値記憶手段、室内熱交換器温度及び吸込み温度検出手段、前記熱交換器と吸込み温度との差を検出する温度差検出手段より構成され、冷房または除湿運転開始時において、圧縮機ＯＮ検出後後室内機接続台数を検出し、前記室内機が複数台接
続を検出したら、室内熱交換器温度及び吸込み温度との差を検出し、前記温度差設定値と比較し、温度差が設定値を上回ったら、室内ファン速を所定回転数低下させるものである。 Further, as shown in the control block diagram of FIG. 6, the air conditioner of the present invention includes a compressor ON / OFF detection means, a fan speed set value storage means, an indoor heat exchanger temperature and suction temperature detection means, and the heat exchange. When the cooling unit or the dehumidifying operation starts, the number of connected indoor units is detected after detecting the compressor ON, and the indoor unit detects the connection of a plurality of units. The difference between the indoor heat exchanger temperature and the suction temperature is detected and compared with the temperature difference set value. When the temperature difference exceeds the set value, the indoor fan speed is reduced by a predetermined number of revolutions.

これによって除湿量を確保し快適性向上を可能としたものである、
また本発明の空気調和機は、第７図の制御ブロック図に示すように、圧縮機ＯＮ／ＯＦＦ検出手段、ファン速設定値記憶手段、室外吸込み温度検出手段、前記設定温度記憶手段より構成され、冷房または除湿運転開始時において、圧縮機ＯＮ検出後後室内機接続台数を検出し、前記室内機が複数台接続を検出したら、室外吸込み温度を検出し、前記吸込み設定値と比較し、温度が設定値を上回ったら、室内ファン速を所定回転数低下させるものである。 This ensures the amount of dehumidification and improves comfort.
As shown in the control block diagram of FIG. 7, the air conditioner of the present invention comprises compressor ON / OFF detection means, fan speed set value storage means, outdoor suction temperature detection means, and the set temperature storage means. At the start of cooling or dehumidifying operation, the number of connected indoor units is detected after detecting the ON state of the compressor, and when the indoor units detect a plurality of connected units, the outdoor suction temperature is detected and compared with the suction set value, If the value exceeds the set value, the indoor fan speed is reduced by a predetermined number of revolutions.

これによって、除湿量を確保し快適性向上を可能としたものである。   This ensures a dehumidifying amount and improves comfort.

また本発明の空気調和機は、第８図の制御ブロック図に示すように、圧縮機ＯＮ／ＯＦＦ検出手段、圧縮機周波数検出手段、前記周波数記憶手段、ファン速設定値記憶手段、室外吸込み温度検出手段、前記設定温度記憶手段より構成され、冷房または除湿運転開始時において、圧縮機ＯＮ検出後後室内機接続台数を検出し、前記室内機が複数台接続を検出したら、圧縮機運転周波数を検出し、前記周波数設定値と比較し、周波数が設定値を下回ったら、室内ファン速を所定回転数低下させるものである。   Further, as shown in the control block diagram of FIG. 8, the air conditioner of the present invention has a compressor ON / OFF detection means, a compressor frequency detection means, the frequency storage means, a fan speed set value storage means, an outdoor suction temperature. It comprises detection means and the set temperature storage means. At the start of cooling or dehumidifying operation, the number of connected indoor units is detected after detecting the compressor ON, and when the plurality of indoor units are detected, the compressor operating frequency is determined. This is detected and compared with the frequency set value. When the frequency falls below the set value, the indoor fan speed is reduced by a predetermined number of revolutions.

これによって、除湿量を確保し快適性向上を可能としたものである。   This ensures a dehumidifying amount and improves comfort.

本発明の空気調和機は快適性を損なうことなく、除湿量を確保することができる。   The air conditioner of the present invention can ensure a dehumidification amount without impairing comfort.

第１の発明は、室内熱交換器及び送風機、並びに前記送風機を駆動する駆動回路で形成される室内機において、圧縮機運転検出手段、室内機接続台数検出手段、室内送風機速度検出手段、室内熱交換器温度検出手段を具備し、冷房または除湿運転時において、風量自動を選択したら運転開始時圧縮機がＯＮしてから室内機接続台数を検出し、前記室内機が複数台接続を確認したら室内熱交温度を検出し設定値を上回ったら室内ファン速を所定回転数低下させることにより、快適性を損なうことなく除湿量を確保することができる。   In a first aspect of the present invention, there is provided an indoor unit formed by an indoor heat exchanger, a blower, and a drive circuit for driving the blower, wherein a compressor operation detecting means, an indoor unit connected number detecting means, an indoor fan speed detecting means, an indoor heat When it is equipped with an exchanger temperature detection means, and the air volume automatic is selected at the time of cooling or dehumidifying operation, the number of indoor units connected is detected after the compressor is turned on at the start of operation. When the heat exchange temperature is detected and exceeds the set value, the dehumidifying amount can be ensured without deteriorating comfort by reducing the indoor fan speed by a predetermined number of revolutions.

第２の発明は、特に第１の発明の空気調和機を、冷房または除湿運転時において、風量自動を選択したら圧縮機ＯＮ検出後後室内機接続台数を検出し、前記室内機が複数台接続を検出したら、室内吸込み温度を検出し設定値を上回ったら、室内ファン速を所定回転数低下させることにより、快適性を損なうことなく除湿量を確保することができる。   In the second aspect of the invention, particularly when the air conditioner of the first aspect of the invention is selected for automatic air volume during cooling or dehumidifying operation, the number of indoor units connected is detected after detecting the compressor ON, and a plurality of the indoor units are connected. If the indoor suction temperature is detected and exceeds the set value, the dehumidifying amount can be ensured without deteriorating the comfort by reducing the indoor fan speed by a predetermined number of revolutions.

第３の発明は、特に第１の発明または第２の発明の空気調和機を、冷房または除湿運転時において、風量自動を選択したら圧縮機ＯＮ検出後後室内機接続台数を検出し、前記室内機が複数台接続を検出したら、室内熱交換器温度及び吸込み温度との差を検出し、温度差が設定値を上回ったら、室内ファン速を所定回転数低下させることにより、快適性を損なうことなく除湿量を確保することができる。   In the third aspect of the invention, in particular, when the air conditioner of the first aspect of the invention or the second aspect of the invention is selected for automatic air volume during cooling or dehumidifying operation, the number of connected indoor units is detected after detecting the compressor ON, and the indoor unit If the machine detects the connection of multiple units, the difference between the indoor heat exchanger temperature and the suction temperature is detected, and if the temperature difference exceeds the set value, the indoor fan speed is reduced by a predetermined number of revolutions, thereby impairing comfort. Therefore, the amount of dehumidification can be secured.

第４の発明は、特に第１〜第３のいづれか１つの空気調和機を、冷房または除湿運転時において、風量自動を選択したら圧縮機ＯＮ検出後後室内機接続台数を検出し、前記室内機が複数台接続を検出したら、室外吸込み温度を検出し、温度が設定値を上回ったら、室内ファン速を所定回転数低下させることにより、快適性を損なうことなく除湿量を確保することができる。   According to a fourth aspect of the present invention, in particular, when any one of the first to third air conditioners is selected during the cooling or dehumidifying operation, if the automatic air volume is selected, the number of connected indoor units is detected after detecting the compressor ON, and the indoor unit If a plurality of units are detected, the outdoor suction temperature is detected. If the temperature exceeds the set value, the indoor fan speed is reduced by a predetermined number of revolutions, so that the amount of dehumidification can be ensured without impairing comfort.

第５の発明は、特に第１〜第４のいづれか１つの発明の空気調和機を、冷房または除湿運転時において、風量自動を選択したら圧縮機ＯＮ検出後後室内機接続台数を検出し、前記室内機が複数台接続を検出したら、圧縮機運転周波数を検出し、前記周波数設定値と比較し、周波数が設定値を下回ったら、室内ファン速を所定回転数低下させることにより、快適性を損なうことなく除湿量を確保することができる。   In the fifth aspect of the invention, the air conditioner of any one of the first to fourth aspects of the invention detects the number of connected indoor units after detecting the ON state of the compressor after selecting the automatic air volume during cooling or dehumidifying operation, When the indoor unit detects the connection of a plurality of units, the compressor operating frequency is detected and compared with the frequency setting value. When the frequency falls below the setting value, the indoor fan speed is reduced by a predetermined number of revolutions, thereby impairing comfort. The amount of dehumidification can be ensured without.

以下本発明の実施の形態について図面を参照して説明する。なお本実施の形態によって本発明が限定されるものではない。   Embodiments of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
第９図は発明の第１の実施の形態における空気調和機を示す冷凍サイクル図である。 (Embodiment 1)
FIG. 9 is a refrigeration cycle diagram showing the air conditioner according to the first embodiment of the invention.

同図において冷凍サイクルは能力可変型圧縮機１、冷房運転と暖房運転を切換える４方弁２、室外熱交換器３、室外送風機４、外気温度センサー５、第１の室内熱交換器６、第１の室内送風機７、第１の室内熱交換器温度センサー８、第１の室内吸込み温度センサー９、第２の室内熱交換器１０、第２の室内送風機１１、第２の室内配管温度センサー１２、第２の室内吸込み温度センサー１３で構成されている。暖房運転時には４方弁２が切り変わることにより、同図の矢印の方向に冷媒が流れるようになっている。   In the figure, the refrigeration cycle includes a variable capacity compressor 1, a four-way valve 2 for switching between cooling operation and heating operation, an outdoor heat exchanger 3, an outdoor blower 4, an outdoor air temperature sensor 5, a first indoor heat exchanger 6, 1 indoor fan 7, first indoor heat exchanger temperature sensor 8, first indoor suction temperature sensor 9, second indoor heat exchanger 10, second indoor fan 11, and second indoor pipe temperature sensor 12. The second indoor suction temperature sensor 13 is configured. When the four-way valve 2 is switched during the heating operation, the refrigerant flows in the direction of the arrow in FIG.

第１０図のフローチャート及び第１１図のタイムチャートにより、室内送風機制御の動作を説明する。   The operation of the indoor fan control will be described with reference to the flowchart of FIG. 10 and the time chart of FIG.

冷房または除湿運転開始後風量自動ＯＮの場合、圧縮機の運転を検出したら室内機接続台数を検出する。このとき第１の室内機及び第２の室内機がＯＮの場合で、室内熱交換器温度Ｔｈを検出し、前記熱交換器設定値Ｔｈ１〜３と比較し温度が設定値Ｔｈ１を上回ったら、室内ファン速を所定回転数低下させ設定-Ｆｒ１とし、さらに熱交換器温度がＴｈ２を上回ったら室内ファン速をさらに所定回転数低下させ設定-Ｆｒ２とし、さらに熱交換器温度がＴｈ３を上回ったら室内ファン速をさらに所定回転数低下させ設定-Ｆｒ３とすることにより、室内熱交換器の温度を下げ除湿量を確保することができる。
（実施の形態２）
第１２図のフローチャート及び第１３図のタイムチャートにより、室内送風機制御の動作を説明する。
冷房または除湿運転開始後風量自動ＯＮの場合、圧縮機の運転を検出したら室内機接続台数を検出する。このとき第１の室内機及び第２の室内機がＯＮの場合で、室内吸込み温度Ｔｓを検出し、前記吸込み温度設定値Ｔｓ１〜３と比較し温度が設定値Ｔｓ１を上回ったら、室内ファン速を所定回転数低下させ設定-Ｆｒ１とし、さらに吸込み温度がＴｈ２を上回ったら室内ファン速をさらに所定回転数低下させ設定−Ｆｒ２とし、さらに吸込み温度がＴｈ３を上回ったら室内ファン速をさらに所定回転数低下させ設定−Ｆｒ３とすることにより、室内熱交換器の温度を下げ除湿量を確保することができる。 When the air volume is automatically turned on after the start of cooling or dehumidifying operation, the number of indoor units connected is detected when the operation of the compressor is detected. At this time, when the first indoor unit and the second indoor unit are ON, the indoor heat exchanger temperature Th is detected, and if the temperature exceeds the set value Th1 compared to the heat exchanger set values Th1 to Th3, Decrease the indoor fan speed by a predetermined number of revolutions to set -Fr1, and if the heat exchanger temperature exceeds Th2, further reduce the indoor fan speed by a predetermined number of revolutions to -Fr2, and if the heat exchanger temperature further exceeds Th3, By further reducing the fan speed by a predetermined number of revolutions to set to -Fr3, the temperature of the indoor heat exchanger can be lowered to ensure the dehumidification amount.
(Embodiment 2)
The operation of the indoor fan control will be described with reference to the flowchart of FIG. 12 and the time chart of FIG.
When the air volume is automatically turned on after the start of cooling or dehumidifying operation, the number of indoor units connected is detected when the operation of the compressor is detected. At this time, when the first indoor unit and the second indoor unit are ON, the indoor suction temperature Ts is detected, and when the temperature exceeds the set value Ts1 compared to the set suction temperature values Ts1 to Ts1, the indoor fan speed When the suction temperature exceeds Th2, the indoor fan speed is further reduced by a predetermined number of revolutions to set -Fr2, and when the suction temperature exceeds Th3, the indoor fan speed is further increased by a predetermined speed. By lowering and setting -Fr3, the temperature of the indoor heat exchanger can be lowered and the dehumidification amount can be secured.

（実施の形態３）
第１４図のフローチャート及び第１５図のタイムチャートにより、室内送風機制御の動作を説明する。 (Embodiment 3)
The operation of the indoor fan control will be described with reference to the flowchart of FIG. 14 and the time chart of FIG.

冷房または除湿運転開始後風量自動ＯＮの場合、圧縮機の運転を検出したら室内機接続台数を検出する。   When the air volume is automatically turned on after the start of cooling or dehumidifying operation, the number of indoor units connected is detected when the operation of the compressor is detected.

このとき第１の室内機及び第２の室内機がＯＮの場合で、室内吸込み温度と熱交換器温度との差ΔＴｓｈを検出し、前記温度差の設定値ΔＴｓ１〜３と比較し温度差が設定値Δ
Ｔｓ１を上回ったら、室内ファン速を所定回転数低下させ設定−Ｆｒ１とし、さらに温度差がΔＴｈ２を上回ったら室内ファン速をさらに所定回転数低下させ設定−Ｆｒ２とし、さらに温度差がΔＴｈ３を上回ったら室内ファン速をさらに所定回転数低下させ設定−Ｆｒ３とすることにより、室内熱交換器の温度を下げ除湿量を確保することができる。 At this time, when the first indoor unit and the second indoor unit are ON, the difference ΔTsh between the indoor suction temperature and the heat exchanger temperature is detected, and the temperature difference is compared with the set values ΔTs1 to ΔTs1 of the temperature difference. Set value Δ
If Ts1 is exceeded, the indoor fan speed is reduced by a predetermined number of revolutions to set -Fr1, and if the temperature difference exceeds ΔTh2, the indoor fan speed is further reduced by a predetermined number of revolutions to set -Fr2, and if the temperature difference exceeds ΔTh3. By lowering the indoor fan speed by a predetermined number of revolutions to set to -Fr3, the temperature of the indoor heat exchanger can be lowered to ensure the dehumidification amount.

（実施の形態４）
第１６図のフローチャート及び第１７図のタイムチャートにより、室内送風機制御の動作を説明する。 (Embodiment 4)
The operation of the indoor fan control will be described with reference to the flowchart of FIG. 16 and the time chart of FIG.

冷房または除湿運転開始後風量自動ＯＮの場合、圧縮機の運転を検出したら室内機接続台数を検出する。   When the air volume is automatically turned on after the start of cooling or dehumidifying operation, the number of indoor units connected is detected when the operation of the compressor is detected.

このとき第１の室内機及び第２の室内機がＯＮの場合で、室外吸込み温度Ｔｇを検出し、前記温度設定値Ｔｇ１〜３と比較し温度設定値Ｔｇ１を上回ったら、室内ファン速を所定回転数低下させ設定−Ｆｒ１とし、さらに室外吸込み温度がＴｇ２を上回ったら室内ファン速をさらに所定回転数低下させ設定−Ｆｒ２とし、さらに室外吸込み温度がＴｇ３を上回ったら室内ファン速をさらに所定回転数低下させ設定−Ｆｒ３とすることにより、室内熱交換器の温度を下げ除湿量を確保することができる。   At this time, when the first indoor unit and the second indoor unit are ON, the outdoor suction temperature Tg is detected, and when the temperature exceeds the temperature set value Tg1 compared to the temperature set values Tg1 to Tg1, the indoor fan speed is set to a predetermined value. If the rotational speed is reduced to set -Fr1, and the outdoor suction temperature exceeds Tg2, the indoor fan speed is further reduced to a predetermined rotational speed to set to -Fr2, and if the outdoor suction temperature exceeds Tg3, the indoor fan speed is further increased to the predetermined rotational speed. By lowering and setting -Fr3, the temperature of the indoor heat exchanger can be lowered and the dehumidification amount can be secured.

（実施の形態５）
第１８図のフローチャート及び第１９図のタイムチャートにより、室内送風機制御の動作を説明する。 (Embodiment 5)
The operation of the indoor fan control will be described with reference to the flowchart of FIG. 18 and the time chart of FIG.

冷房または除湿運転開始後風量自動ＯＮの場合、圧縮機の運転を検出したら室内機接続台数を検出する。   When the air volume is automatically turned on after the start of cooling or dehumidifying operation, the number of indoor units connected is detected when the operation of the compressor is detected.

このとき第１の室内機及び第２の室内機がＯＮの場合で、圧縮機運転周波数Ｈｚを検出し、前記周波数設定値Ｈｚ１〜３と比較し周波数設定値Ｈｚ１を下回ったら、室内ファン速を所定回転数低下させ設定−Ｆｒ１とし、さらに周波数がＨｚ２を下回ったら室内ファン速をさらに所定回転数低下させ設定−Ｆｒ２とし、さらに周波数がＨｚ３を下回ったら室内ファン速をさらに所定回転数低下させ設定−Ｆｒ３とすることにより、室内熱交換器の温度を下げ除湿量を確保することができる。   At this time, when the first indoor unit and the second indoor unit are ON, the compressor operating frequency Hz is detected, and when the frequency setting value Hz1 is lower than the frequency setting value Hz1 to 3, the indoor fan speed is set. Decrease the predetermined number of revolutions to set -Fr1, and if the frequency falls below Hz2, set the indoor fan speed to further reduce the prescribed number of revolutions to set -Fr2, and if the frequency falls below Hz3, set the indoor fan speed to further decrease the prescribed number of revolutions. By setting it to -Fr3, the temperature of the indoor heat exchanger can be lowered to ensure the dehumidification amount.

以上のように、本発明に係る空気調和機は除湿量を確保して快適性を向上することができるので、除湿機や冷蔵庫の冷凍サイクルにも適用できる。   As described above, since the air conditioner according to the present invention can ensure the dehumidification amount and improve the comfort, it can also be applied to the refrigeration cycle of a dehumidifier or a refrigerator.

従来の送風機制御方法のフローチャートFlow chart of conventional blower control method 従来の送風機制御方法のタイムチャートTime chart of conventional blower control method 従来の送風機制御方法のブロック図Block diagram of conventional blower control method 本発明の第１の実施形態を示す送風機制御方法のブロック図The block diagram of the air blower control method which shows the 1st Embodiment of this invention. 本発明の第２の実施形態を示す送風機制御方法のブロック図The block diagram of the air blower control method which shows the 2nd Embodiment of this invention. 本発明の第３の実施形態を示す送風機制御方法のブロック図The block diagram of the air blower control method which shows the 3rd Embodiment of this invention. 本発明の第４の実施形態を示す送風機制御方法のブロック図The block diagram of the air blower control method which shows the 4th Embodiment of this invention. 本発明の第５の実施形態を示す送風機制御方法のブロック図The block diagram of the air blower control method which shows the 5th Embodiment of this invention. 本発明の第１の実施形態を示す送風機制御方法の冷凍サイクル図Refrigeration cycle diagram of the blower control method showing the first embodiment of the present invention 本発明の第１の実施形態を示す送風機制御方法のフローチャートThe flowchart of the air blower control method which shows the 1st Embodiment of this invention. 本発明の第１の実施形態を示す送風機制御方法のタイムチャートThe time chart of the blower control method which shows the 1st Embodiment of this invention 本発明の第２の実施形態を示す送風機制御方法のフローチャートFlow chart of the blower control method showing the second embodiment of the present invention. 本発明の第２の実施形態を示す送風機制御方法のタイムチャートThe time chart of the blower control method which shows the 2nd Embodiment of this invention 本発明の第３の実施形態を示す送風機制御方法のフローチャートFlow chart of blower control method showing the third embodiment of the present invention. 本発明の第３の実施形態を示す送風機制御方法のタイムチャートThe time chart of the blower control method which shows the 3rd Embodiment of this invention 本発明の第４の実施形態を示す送風機制御方法のフローチャートFlowchart of the blower control method showing the fourth embodiment of the present invention. 本発明の第４の実施形態を示す送風機制御方法のタイムチャートThe time chart of the air blower control method which shows the 4th Embodiment of this invention 本発明の第５の実施形態を示す送風機制御方法のフローチャートFlow chart of blower control method showing the fifth embodiment of the present invention. 本発明の第５の実施形態を示す送風機制御方法のタイムチャートThe time chart of the air blower control method which shows the 5th Embodiment of this invention

符号の説明Explanation of symbols

１ 圧縮機
２ ４方弁
３ 室外熱交換器
４ 室外送風機
５ 外気温度センサー
６ 第１の室内熱交換器
７ 第１の室内送風機
８ 第１の室内熱交換器温度センサー
９ 第１の室内吸込み温度センサー
１０ 第２の室内熱交換器
１１ 第２の室内送風機
１２ 第２の室内熱交換器温度センサー
１３ 第２の室内吸込み温度センサー DESCRIPTION OF SYMBOLS 1 Compressor 2 4-way valve 3 Outdoor heat exchanger 4 Outdoor blower 5 Outdoor air temperature sensor 6 1st indoor heat exchanger 7 1st indoor blower 8 1st indoor heat exchanger temperature sensor 9 1st indoor suction temperature Sensor 10 2nd indoor heat exchanger 11 2nd indoor air blower 12 2nd indoor heat exchanger temperature sensor 13 2nd indoor suction temperature sensor

Claims (5)

室外機１台に対し室内機が複数台接続され同時運転可能な空気調和機において、圧縮機運転検出手段、室内送風機速度検出手段、室内吸込み温度検出手段及び前記熱交換器温度検出手段、並びに外気温検出手段を具備し、冷房または除湿運転時において、風量自動設定時室内配管温度が第１の設定値を上回ると室内送風機を設定より所定回転数低下させることにより、快適性を損なうことなく運転を可能にした空気調和機。 In an air conditioner in which a plurality of indoor units are connected to one outdoor unit and can be operated at the same time, compressor operation detecting means, indoor fan speed detecting means, indoor suction temperature detecting means, heat exchanger temperature detecting means, and outside With air temperature detection means, during cooling or dehumidifying operation, if the indoor pipe temperature exceeds the first set value when the air volume is automatically set, the indoor blower is reduced by a predetermined number of revolutions from the set value, so that operation is not impaired. Air conditioner that made it possible. 冷房または除湿運転時に風量自動設定時前記室内吸込み温度を検出し、吸込み温度が第１の設定値を上回ったら、室内送風機を設定より所定回転数低下させ、室内吸込み温度が第２の設定値を上回ったら前記室内送風機をさらに所定回転数低下させ、さらに室内吸込み温度が第３の設定値を上回ったら前記室内送風機をさらに所定回転数低下させることにより、快適性を損なうことなく冷房、または除湿運転を可能にしたことを特徴とする、請求項１に記載の空気調和機。 When the air volume is automatically set during cooling or dehumidifying operation, the indoor suction temperature is detected. If the suction temperature exceeds the first set value, the indoor blower is lowered by a predetermined number of revolutions from the setting, and the indoor suction temperature is set to the second set value. If it exceeds, the indoor blower is further reduced by a predetermined number of revolutions, and if the indoor suction temperature exceeds a third set value, the indoor blower is further reduced by a predetermined number of revolutions, thereby cooling or dehumidifying operation without impairing comfort. The air conditioner according to claim 1, wherein the air conditioner is made possible. 冷房または除湿運転時に風量自動設定時前記室内吸込み温度と前記室内配管温度との差を検出し、温度差が第１の設定値を上回ったら、室内送風機を設定より所定回転数低下させ、前記温度差が第２の設定値を上回ったら、室内送風機を設定より所定回転数低下させ、さらに前記温度差が第３の設定値を上回ったら室内送風機を所定回転数低下させることにより、快適性を損なうことなく冷房、または除湿運転を可能にしたことを特徴とする、請求項１〜２のいずれかに記載の空気調和機。 When the air volume is automatically set during cooling or dehumidifying operation, the difference between the indoor suction temperature and the indoor piping temperature is detected, and when the temperature difference exceeds the first set value, the indoor blower is reduced by a predetermined number of revolutions from the setting, and the temperature When the difference exceeds the second set value, the indoor fan is reduced by a predetermined number of revolutions from the setting, and when the temperature difference exceeds the third set value, the indoor fan is reduced by a predetermined number of revolutions, thereby impairing comfort. The air conditioner according to any one of claims 1 to 2, wherein the air conditioning or the dehumidifying operation can be performed without any problem. 冷房または除湿運転時に風量自動設定時前記外気温度を検出し、外気温度が第１の設定値を上回ったら室内送風機を設定より所定回転数低下させ、外気温度が第２の設定値を上回ったら、室内送風機を所定回転数低下させ、外気温度が第３の設定値を上回ったらさらに室内送風機を所定回転数低下させることにより、快適性を損なうことなく冷房、または除湿運転を可能にしたことを特徴とする、請求項１〜３のいずれかに記載の空気調和機。 When the air volume is automatically set during cooling or dehumidifying operation, the outside air temperature is detected. When the outside air temperature exceeds the first set value, the indoor blower is reduced by a predetermined number of revolutions from the setting, and when the outside air temperature exceeds the second set value, The indoor fan is lowered by a predetermined number of revolutions, and when the outside air temperature exceeds the third set value, the indoor fan is further lowered by the prescribed number of revolutions, thereby enabling cooling or dehumidifying operation without impairing comfort. The air conditioner according to any one of claims 1 to 3. 冷房または除湿運転時に風量自動設定時圧縮機運転周波数を検出し、運転周波数が第１の設定値を下回ったら室内送風機を設定より所定回転数低下させ、運転周波数が第２の設定値を下回ったら室内送風機を設定より所定回転数低下させ、さらに運転周波数が第３の設定値を下回ったら室内送風機を設定より所定回転数低下させることにより、快適性を損なうことなく冷房、または除湿運転を可能にしたことを特徴とする、請求項１〜４のいずれかに記載の空気調和機。 When the compressor operating frequency is detected during air conditioning or dehumidifying operation, the compressor operating frequency is detected. When the operating frequency falls below the first set value, the indoor fan is lowered by a predetermined number of revolutions, and the operating frequency falls below the second set value. Decrease the number of revolutions of the indoor blower from the setting, and if the operating frequency falls below the third set value, lowering the number of revolutions of the indoor blower from the setting enables cooling or dehumidifying operation without sacrificing comfort The air conditioner according to any one of claims 1 to 4, wherein
JP2005094243A 2005-03-29 2005-03-29 Air conditioner Withdrawn JP2006275392A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011075179A (en) * 2009-09-30 2011-04-14 Daikin Industries Ltd Air conditioning system
CN104344510A (en) * 2013-07-31 2015-02-11 三菱电机株式会社 Air conditioner
CN114562797A (en) * 2022-03-01 2022-05-31 武汉汉立制冷科技股份有限公司 Three-dimensional air control method for refrigeration equipment
CN114838482A (en) * 2022-05-07 2022-08-02 Tcl空调器(中山)有限公司 Fresh air control method and device for air conditioner, electronic equipment and storage medium
CN115751677A (en) * 2022-12-07 2023-03-07 珠海格力电器股份有限公司 Dehumidification control method and device and dehumidifier

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011075179A (en) * 2009-09-30 2011-04-14 Daikin Industries Ltd Air conditioning system
CN104344510A (en) * 2013-07-31 2015-02-11 三菱电机株式会社 Air conditioner
JP2015031419A (en) * 2013-07-31 2015-02-16 三菱電機株式会社 Air conditioner
CN114562797A (en) * 2022-03-01 2022-05-31 武汉汉立制冷科技股份有限公司 Three-dimensional air control method for refrigeration equipment
CN114562797B (en) * 2022-03-01 2023-11-10 武汉汉立制冷科技股份有限公司 Three-dimensional air control method for refrigeration equipment
CN114838482A (en) * 2022-05-07 2022-08-02 Tcl空调器(中山)有限公司 Fresh air control method and device for air conditioner, electronic equipment and storage medium
CN115751677A (en) * 2022-12-07 2023-03-07 珠海格力电器股份有限公司 Dehumidification control method and device and dehumidifier

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