JP2015021719A - Air conditioner - Google Patents
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Abstract
Description
本発明は複数の室内空調機を有する空調機システムに関する。 The present invention relates to an air conditioner system having a plurality of indoor air conditioners.
特許文献１では、人感センサーを備えた複数台の室内空調機により、空調対象空間において人の在否を判断し、人感センサーにより空調対象空間おける空調負荷が小さいと判断されたときは、空調対象空間の室内機が個別に省電力モードに移行するように室外制御部を制御する空気調和機を開示する。 In Patent Literature 1, when a plurality of indoor air conditioners equipped with human sensors are used to determine the presence or absence of a person in the air conditioning target space, and the human sensor determines that the air conditioning load in the air conditioning target space is small, Disclosed is an air conditioner that controls an outdoor control unit so that indoor units in an air-conditioning target space individually shift to a power saving mode.
特許文献１の空気調和機では、人の在否割合又は活動量が多いほど、空調機の風量を増加し、人が不在の場合は、風量を低減する。しかしながら、１台の室外機で複数台の室内機を空調する空調機システムにおいては、人が各空調空間又は部屋に分散して室内機を同時に運転させる場合、各室内機への能力が分割されて空調能力が低下し、特に暖房時は人に直接的に強風があたると冷風感を感じるという課題がある。また、従来の省電力モードでは、不在空間に関して、一定時間、設定温度をシフトさせながらも空調を継続させるため、消費電力の低減効果が少ないという課題がある。また、暖房運転時において、人の不在時に室内機をサーモオフ又は停止し且つ室内ファンも停止してしまうと、暖房時は停止側にも多少の冷媒を流す必要がるため、室内機に熱たまりができ、人が戻ってきてもサーモオンしづらいという課題がある。 In the air conditioner of Patent Document 1, the air volume of the air conditioner is increased as the presence / absence ratio of the person or the amount of activity increases, and the air volume is reduced when the person is absent. However, in an air conditioner system that air-conditions a plurality of indoor units with one outdoor unit, when a person is distributed in each air-conditioned space or room and operates the indoor units simultaneously, the capacity to each indoor unit is divided. As a result, the air conditioning capacity is lowered, and particularly during heating, there is a problem of feeling a cold wind when a strong wind directly hits a person. Further, in the conventional power saving mode, air conditioning is continued while shifting the set temperature for a certain time with respect to the absent space, so there is a problem that the effect of reducing power consumption is small. In addition, if the indoor unit is thermo-off or stopped and the indoor fan is stopped during heating operation and the indoor fan is also stopped, it is necessary to allow some refrigerant to flow to the stop side during heating. There is a problem that it is difficult to turn on the thermo even if a person returns.
本発明は、複数の室内空調機を有する空調機システムにおいて、在室者への快適性を維持しつつ、消費電力を低減する空調機システムを提供することを課題とする。 An object of the present invention is to provide an air conditioner system that reduces power consumption while maintaining comfort for a room occupant in an air conditioner system having a plurality of indoor air conditioners.
本発明の空調機システムは、第１室内機及び第２室内機と、第１室内機及び第２室内機と接続された室外機とを備え、第１室内機及び第２室内機は、それぞれ、室内空間の人の存在を検知するカメラと、室内空気と熱交換する熱交換器と、室内空間に吹き出す気流の風向を制御する風向板と、を有し、室外機は、圧縮機と、室外空気と熱交換する室外熱交換器と、冷媒の流量を制御する膨張弁と、有し、カメラが人の存在を検知した場合、人の存在を検知した室内機の気流を在室者に向け、カメラが人の存在を検知しない場合、人の存在を検知しない室内機をサーモオフ運転にするとともに、暖房運転であった場合は気流を上方向に向け、冷房運転であった場合は気流を下方向に向ける。 The air conditioner system of the present invention includes a first indoor unit and a second indoor unit, and an outdoor unit connected to the first indoor unit and the second indoor unit. The first indoor unit and the second indoor unit are respectively A camera for detecting the presence of a person in the indoor space, a heat exchanger for exchanging heat with the indoor air, and a wind direction plate for controlling the direction of the airflow blown into the indoor space, and the outdoor unit is a compressor, An outdoor heat exchanger that exchanges heat with outdoor air, an expansion valve that controls the flow rate of the refrigerant, and when the camera detects the presence of a person, the air current of the indoor unit that has detected the presence of the person If the camera does not detect the presence of a person, the indoor unit that does not detect the presence of a person is put into a thermo-off operation, and if it is a heating operation, the airflow is directed upward, and if it is a cooling operation, the airflow is Turn down.
複数の室内空調機を有する空調機システムにおいて、在室者への快適性を維持しつつ、消費電力を低減する空調機システムを提供することを課題とする。 In an air conditioner system having a plurality of indoor air conditioners, it is an object to provide an air conditioner system that reduces power consumption while maintaining comfort for occupants.
まず、本発明の第1の実施例について図面を用いて説明する。本実施例の空調機システムは、第１室内機及び第２室内機と、第１室内機及び第２室内機と接続された室外機とを備え、第１室内機及び第２室内機は、それぞれ、室内空間の人の存在を検知するカメラと、室内空気と熱交換する熱交換器と、室内空間に吹き出す気流の風向を制御する風向板と、を有し、室外機は、圧縮機と、室外空気と熱交換する室外熱交換器と、冷媒の流量を制御する膨張弁と、有し、カメラが人の存在を検知した場合、人の存在を検知した室内機の気流を在室者に向け、カメラが人の存在を検知しない場合、人の存在を検知しない室内機をサーモオフ運転にするとともに、暖房運転であった場合は気流を上方向に向け、冷房運転であった場合は気流を下方向に向ける。在室者が検知された室内機では在室者に向けて風向を制御するとともに、在室者が検知されない室内機では送風運転（サーモオフ運転）により部屋の上部に溜まった暖気又は部屋の下部に溜まった冷気を循環させて溜まった暖気又は冷気により空気調和することにより、在室者への快適性を維持しつつ、消費電力を低減することができる。 First, a first embodiment of the present invention will be described with reference to the drawings. The air conditioner system of the present embodiment includes a first indoor unit and a second indoor unit, and an outdoor unit connected to the first indoor unit and the second indoor unit, and the first indoor unit and the second indoor unit are: Each has a camera for detecting the presence of a person in the indoor space, a heat exchanger for exchanging heat with the indoor air, and a wind direction plate for controlling the direction of the airflow blown into the indoor space, and the outdoor unit is a compressor, An outdoor heat exchanger that exchanges heat with outdoor air, an expansion valve that controls the flow rate of the refrigerant, and when the camera detects the presence of a person, the air current of the indoor unit that detects the presence of the person is When the camera does not detect the presence of a person, the indoor unit that does not detect the presence of a person is put into a thermo-off operation, and if it is a heating operation, the airflow is directed upward, and if it is a cooling operation, the airflow Turn down. In indoor units where occupants are detected, the air direction is controlled toward the occupants, and in indoor units where occupants are not detected, warm air accumulated in the upper part of the room due to air blowing operation (thermo-off operation) or in the lower part of the room By circulating the accumulated cold air and air-conditioning with the accumulated warm air or cold air, it is possible to reduce power consumption while maintaining comfort for the occupants.
本発明の第１の実施例について図面を用いて説明する。図１は空気調和機の制御システムの概略構成図であり、図２は空気調和機のサイクル構成図である。 A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of an air conditioner control system, and FIG. 2 is a cycle configuration diagram of the air conditioner.
図２に示すように、空気調和機システムは、１台の室外機30に複数の（本実施例では２台の）室内機10a、10bが並列に冷媒配管で接続される。室外機30の内部には、圧縮機31と、室外熱交換器32と、膨張弁33ａ、33bと、四方弁35を有する。室内機10ａ、10bの内部には、それぞれ室内熱交換器11ａ、11bを有する。なお、室内機の台数は２台に限らず複数台の室内機から構成される。 As shown in FIG. 2, in the air conditioner system, a plurality of (two in the present embodiment) indoor units 10 a and 10 b are connected in parallel to one outdoor unit 30 by refrigerant piping. Inside the outdoor unit 30, a compressor 31, an outdoor heat exchanger 32, expansion valves 33a and 33b, and a four-way valve 35 are provided. The indoor units 10a and 10b have indoor heat exchangers 11a and 11b, respectively. Note that the number of indoor units is not limited to two, and includes a plurality of indoor units.
70は冷房時の冷媒の流れる向きを示す矢印であり、室外機30の室外熱交換器32を凝縮器とし、各室内器10ａ、10bの各室内熱交換器11ａ、11bを蒸発器とする。71は暖房時の冷媒の流れる向きを示す矢印であり、各室内機の各室内熱交換器を凝縮器とし、室外機30の室外熱交換器32を蒸発器とする。冷暖房の切替えは四方弁35で行い、冷房時は実線、暖房時は破線の向きに切り替えられる。 70 is an arrow indicating the direction of refrigerant flow during cooling. The outdoor heat exchanger 32 of the outdoor unit 30 is a condenser, and the indoor heat exchangers 11a and 11b of the indoor units 10a and 10b are evaporators. Reference numeral 71 denotes an arrow indicating the direction in which the refrigerant flows during heating. Each indoor heat exchanger of each indoor unit is a condenser, and the outdoor heat exchanger 32 of the outdoor unit 30 is an evaporator. Switching between air conditioning and heating is performed by the four-way valve 35, which is switched to the direction of the solid line during cooling and the direction of the broken line during heating.
冷媒の流量を各室内機毎に調節できる膨張弁33が室外機に取り付けられているため、各室内機において異なる冷房能力、暖房能力とすることができる。また、室内膨張弁の開度を各々調整することができ、各室内機を個別に運転及び停止するように制御することができる。冷房時は停止側の室内機への膨張弁を全閉にする。暖房時は冷媒のたまりこみによる冷媒不足を防止するため、停止側の室内機へも冷媒を少量流すようにする。 Since the expansion valve 33 that can adjust the flow rate of the refrigerant for each indoor unit is attached to the outdoor unit, the cooling capacity and the heating capacity that are different in each indoor unit can be obtained. Moreover, the opening degree of the indoor expansion valve can be adjusted, and each indoor unit can be controlled to operate and stop individually. During cooling, fully close the expansion valve to the indoor unit on the stop side. During heating, a small amount of refrigerant is allowed to flow to the indoor unit on the stop side to prevent refrigerant shortage due to refrigerant accumulation.
図１に示すように、空気調和機１は、建物Ｈ内に配置される複数の室内機10を、室外に配置される１台の室外機30で運転するマルチタイプの空気調和機である。室内機10に設置されたカメラ15（可視カメラ）は、空調空間の人の在否及び位置を認識する。 As shown in FIG. 1, the air conditioner 1 is a multi-type air conditioner that operates a plurality of indoor units 10 arranged in a building H with a single outdoor unit 30 arranged outdoors. A camera 15 (visible camera) installed in the indoor unit 10 recognizes the presence / absence and position of a person in the air-conditioned space.
一般的に暖房時には暖気が上に上昇することから、人が在室する室内機のルーバー17ａは下向きに設定され、暖気が下向きに吹出される。本実施例においては、可視カメラ15により、在室者がいなくなった室内機10bのルーバー17bを上向きに設定し、部屋の上部にたまった暖気を循環させ部屋全体を温める。この際、室内機10bには少量の冷媒が流れる状態とし（少なくとも室内機10aに流れる冷媒よりも少量とし）、室内ファン16bによる送風運転モードとする。圧縮機の回転数は、２台運転モードから１台運転モードに低下させることにより、消費電力の低減を図る。送風運転モード（サーモオフし、室内ファン16bで送風）の継続期間は、リモコン50bの設定温度と室内機10bの吸込温度との差がある一定以内の場合とし、設定温度と吸込温度の差がある一定値以上離れた場合には、送風のみの運転を止め、室内機をサーモオン(各室内機の空調の運転開始)し、通常通り冷媒を流して空調する。 Generally, since warm air rises upward during heating, the louver 17a of the indoor unit in which a person is present is set downward and the warm air is blown downward. In the present embodiment, the visible camera 15 sets the louver 17b of the indoor unit 10b in which the occupant is gone upward to circulate the warm air accumulated in the upper part of the room to warm the whole room. At this time, a small amount of refrigerant flows through the indoor unit 10b (at least in a smaller amount than the refrigerant flowing through the indoor unit 10a), and the air blowing operation mode by the indoor fan 16b is set. The rotation speed of the compressor is reduced from the two-unit operation mode to the one-unit operation mode, thereby reducing power consumption. The duration of the air blowing operation mode (thermo is turned off and air is blown by the indoor fan 16b) is within a certain range between the set temperature of the remote controller 50b and the suction temperature of the indoor unit 10b, and there is a difference between the set temperature and the suction temperature. When the distance is greater than a certain value, the operation of only blowing is stopped, the indoor unit is thermo-ON (the air conditioning operation of each indoor unit is started), and the refrigerant is flowed as usual for air conditioning.
また、本サイクルのように、暖房時に冷媒のたまりこみを防止するため、サーモオフ(各室内機の空調の運転を停止)した室内機へも冷媒を少量循環させる場合、室内機が熱こもりをおこし、その後のサーモオン復帰がしづらい問題があった。しかし、本実施例によれば、不在時において送風運転モードとすることにより、室内機の熱こもりが防止され、その後人が戻ってきた場合もサーモオン復帰がしやすくなる。 In addition, as in this cycle, in order to prevent refrigerant from accumulating during heating, when a small amount of refrigerant is circulated to an indoor unit that has been thermo-off (air conditioning operation of each indoor unit is stopped), the indoor unit also accumulates heat. After that, there was a problem that it was difficult to return to Thermo-ON. However, according to the present embodiment, by setting the air blowing operation mode in the absence, it is possible to prevent the indoor unit from being overheated and to easily return to the thermo-on state even when a person returns.
一方、冷房時には冷気は下に下降することから、可視カメラ15により人の在室が判断された場合は、室内機のルーバー17ａは上向きに設定し、在室者がいないときには、ルーバー17bを下向きに設定し、部屋の下部にたまった冷気を循環させて部屋全体を冷房する。 On the other hand, since the cool air descends downward during cooling, when the presence of a person is determined by the visible camera 15, the louver 17a of the indoor unit is set upward, and when there is no occupant, the louver 17b is directed downward. Set the air conditioner to cool the whole room by circulating the cool air accumulated at the bottom of the room.
次に、本発明の第２の実施例について図面を用いて説明する。本実施例の空調機システムは、第１室内機及び第２室内機と、第１室内機及び第２室内機と接続された室外機とを備え、第１室内機及び第２室内機は、それぞれ、室内空間の在室者を検知するカメラと、室内空気と熱交換する熱交換器と、室内空間に吹き出す気流の風向を制御する風向板と、を有し、室外機は、圧縮機と、室外空気と熱交換する室外熱交換器と、冷媒の流量を制御する膨張弁と、有し、カメラが人の存在を検知した場合、人の存在を検知した室内機の熱交換器の温度が所定値以下であれば、在室者への気流を減少させ、カメラが人の存在を検知しない場合、室内温度と設定温度との差が所定値以下であれば、暖房運転であった場合は気流を上方向に向け、冷房運転であった場合は気流を下方に向ける。複数台の室内機が同時に運転され熱交換器の温度が低下した場合は在室者への気流を減少させて体感温度を向上させるとともに、在室者が検知されない場合は、部屋の上部に溜まった暖気又は部屋の下部に溜まった冷気を循環させて溜まった暖気又は冷気により空気調和することにより、在室者への快適性を維持しつつ、消費電力を低減することができる。 Next, a second embodiment of the present invention will be described with reference to the drawings. The air conditioner system of the present embodiment includes a first indoor unit and a second indoor unit, and an outdoor unit connected to the first indoor unit and the second indoor unit, and the first indoor unit and the second indoor unit are: Each includes a camera that detects a person in the room space, a heat exchanger that exchanges heat with room air, and a wind direction plate that controls the direction of the airflow blown into the room space, and the outdoor unit includes a compressor An outdoor heat exchanger that exchanges heat with outdoor air, an expansion valve that controls the flow rate of the refrigerant, and when the camera detects the presence of a person, the temperature of the heat exchanger of the indoor unit that has detected the presence of the person If is less than the specified value, the air flow to the occupants is reduced and the camera does not detect the presence of a person. If the difference between the room temperature and the set temperature is less than the specified value, the heating operation is performed. Directs the airflow upward, and in the case of cooling operation, directs the airflow downward. When multiple indoor units are operated at the same time and the temperature of the heat exchanger decreases, the air flow to the occupants is reduced to improve the sensible temperature, and if the occupants are not detected, they accumulate at the top of the room. By circulating the warm air or the cool air accumulated in the lower part of the room to harmonize the air with the warm air or cool air accumulated, it is possible to reduce power consumption while maintaining comfort for the occupants.
図３は本実施例の空調機システムにおいて個別運転を行う際の制御情報の伝達を示したブロック図である。実線の矢印は設定情報及び検知情報の伝送を示し、破線の矢印は制御指令情報の伝送を示す。室内機10ａ、10bは、空調対象空間における人体の在否及び位置を検知する可視カメラ15ａ、15b、吸込温度を検知する吸込温度センサー14ａ、14b、熱交換器の温度を検知する温度センサー13ａ、13b、室内制御部12ａ、12b、風量を制御のための室内ファン16ａ、16b、風向制御のためのルーバー17ａ、17bを備える。室外機30は、圧縮機31と、圧縮機の容量を制御する室外制御部34を備える。室内機を複数台接続し、それぞれの室内機を個別運転または同時運転することを可能とし、その運転方式も選択可能とする。 FIG. 3 is a block diagram showing transmission of control information when performing individual operation in the air conditioner system of the present embodiment. Solid arrows indicate transmission of setting information and detection information, and broken arrows indicate transmission of control command information. The indoor units 10a and 10b are visible cameras 15a and 15b that detect the presence and position of a human body in the air-conditioning target space, suction temperature sensors 14a and 14b that detect the suction temperature, and a temperature sensor 13a that detects the temperature of the heat exchanger, 13b, indoor control units 12a and 12b, indoor fans 16a and 16b for controlling the air volume, and louvers 17a and 17b for controlling the air direction. The outdoor unit 30 includes a compressor 31 and an outdoor control unit 34 that controls the capacity of the compressor. A plurality of indoor units are connected so that each indoor unit can be operated individually or simultaneously, and the operation method can also be selected.
室内側には設定温度及び設定風量、上下風向を設定するリモコン50ａ、50bを備える。リモコン50ａ、50bは対となる室内制御部12ａ、12bと各々接続され、これらの室内制御部は室外制御部34と接続される。以下、室内機10ａを代表して操作を説明する。 On the indoor side, remote controllers 50a and 50b for setting the set temperature, the set air volume, and the up and down air direction are provided. The remote controllers 50a and 50b are connected to a pair of indoor control units 12a and 12b, respectively, and these indoor control units are connected to the outdoor control unit 34. Hereinafter, the operation will be described on behalf of the indoor unit 10a.
空気調和機は、１台の室外機30で複数の室内機の運転状態や発停を個別に制御する個別運転が可能である。リモコン50ａからの運転開始の情報(例えば設定温度や設定風量)と、熱交温度、可視カメラ15ａにより検知された人の在否や人の位置情報とが室内制御部12ａに送信され、これらの情報に基づいて、リモコン50ａで設定された設定風向及び設定風量が室内制御部12ａで適切な設定風向及び設定風量の情報に変更される。この変更された情報が室内制御部12ａから室外制御部34に送信される。他の室内機においても同様の情報が送受信され、情報は室外制御部34に集約される。 The air conditioner is capable of individual operation in which one outdoor unit 30 individually controls the operation state and start / stop of a plurality of indoor units. Operation start information (for example, set temperature and set air volume) from the remote controller 50a, the heat exchange temperature, the presence / absence of the person detected by the visible camera 15a, and the position information of the person are transmitted to the indoor control unit 12a. Based on the above, the set wind direction and the set air volume set by the remote controller 50a are changed to the appropriate set wind direction and set air volume information by the indoor control unit 12a. The changed information is transmitted from the indoor control unit 12a to the outdoor control unit 34. Similar information is also transmitted and received in other indoor units, and the information is collected in the outdoor control unit 34.
各室内機で受信した情報に基づいて、室外制御部34は、各室内機それぞれの空調対象空間の空調負荷及びこれらの空調対象空間に基づく空調空間全体の空調負荷を算出する。この算出結果に基づいて、室外制御部34が圧縮機31を容量制御する。 Based on the information received by each indoor unit, the outdoor control unit 34 calculates the air conditioning load of the air conditioning target space of each indoor unit and the air conditioning load of the entire air conditioning space based on these air conditioning target spaces. Based on this calculation result, the outdoor control unit 34 controls the capacity of the compressor 31.
ここで、本実施例の空調機システムにおいては、室内機の熱交換温度がある一定値以上低く、人の位置情報から、風があたる位置に人がいる場合は、在室者に風が当らないように室内機を制御する。具体的には、室内ファン16ａの回転数を低減したり、ルーバー17ａの開度及び風向きを調整するように室外制御部34から室内制御部12ａへ情報が送信される。そして、室内機毎に個別に制御されるように室内制御部12ａが室内ファン16ａ及びルーバー17を制御する。従来空気調和機では、人の在否割合が高いほど、つまり人がたくさんいる時は、空調負荷が大きいとして、風量を増加していたが、複数台運転時で能力不足ぎみの場合は、室内機の熱交換温度が低下し、在室者に対して暖房時は冷風感のある風があたることになるという課題があった。本実施例においては、人が空調機の風向近くにいる際には、風量を低減し、快適さを優先し、人が空調機の送風範囲内から遠くにいる際は、能力を高めるため風量を増加することを特徴とする。 Here, in the air conditioner system of this embodiment, when the heat exchange temperature of the indoor unit is lower than a certain value and a person is in a position where the wind hits based on the position information of the person, the occupant is exposed to the wind. Control the indoor unit so that there is no. Specifically, information is transmitted from the outdoor control unit 34 to the indoor control unit 12a so as to reduce the rotation speed of the indoor fan 16a or adjust the opening degree and the wind direction of the louver 17a. And the indoor control part 12a controls the indoor fan 16a and the louver 17 so that it may control separately for every indoor unit. In conventional air conditioners, the higher the percentage of people present, that is, when there are many people, the air flow is increased because the air conditioning load is large, but if there are insufficient capacity when operating multiple units, The heat exchange temperature of the machine was lowered, and there was a problem that occupants were exposed to a cool wind feeling during heating. In this embodiment, when the person is near the air direction of the air conditioner, the air volume is reduced to give priority to comfort, and when the person is far from the air blowing range of the air conditioner, the air volume is increased to increase the capacity. It is characterized by increasing.
図４は本実施例の空調機システムの制御図である。人の在室時には、熱交換器の温度が所定値以下の場合には、風量を通常より低下させるとともに、冷媒の循環量（つまり、圧縮機の回転数）は設定値のままとし、吹出し温度を暖房時は暖かく、冷房時は冷たくし、人の体感を向上させる。一方、不在時には、吸込温度と設定温度の差をみながら、差が小さい場合には、設定より風量を上昇して、暖房運転であった場合は気流を上方向に向け、冷房運転であった場合は気流を下方向に向けることにより、空調空間全体の空気を循環させ、溜まった暖気又は冷気を有効利用して、部屋の全体の温度むらを低減する。 FIG. 4 is a control diagram of the air conditioner system of this embodiment. When a person is in the room, if the temperature of the heat exchanger is below the specified value, the air volume is reduced below normal, and the refrigerant circulation rate (that is, the compressor speed) remains at the set value. It is warm during heating and cool during cooling, improving the human experience. On the other hand, in the absence, while looking at the difference between the suction temperature and the set temperature, if the difference is small, the air volume is increased from the setting, and in the case of heating operation, the air flow is directed upward and the cooling operation is performed. In such a case, the air in the entire air-conditioned space is circulated by directing the air flow downward, and the accumulated warm air or cold air is effectively used to reduce the temperature unevenness of the entire room.
1…空気調和機、10ａ、10b…室内機、11ａ、11b…室内熱交換器、12ａ、12b…室内制御部、13ａ、13b…熱交換器温度センサー、14ａ、14b…吸込温度センサー、15ａ、15b…可視カメラ、16ａ、16b…室内ファン、17ａ、17b…ルーバー、30…室外機、31…圧縮機、32…室外熱交換器、33ａ、33b…室外膨張弁、34…室外制御部、35…四方弁、50ａ、50b…リモコン、70…冷房時の冷媒の流れる向きを示す矢印、71…暖房時の冷媒の流れる向きを示す矢印 1 ... Air conditioner, 10a, 10b ... Indoor unit, 11a, 11b ... Indoor heat exchanger, 12a, 12b ... Indoor controller, 13a, 13b ... Heat exchanger temperature sensor, 14a, 14b ... Suction temperature sensor, 15a, 15b ... Visible camera, 16a, 16b ... Indoor fan, 17a, 17b ... Louver, 30 ... Outdoor unit, 31 ... Compressor, 32 ... Outdoor heat exchanger, 33a, 33b ... Outdoor expansion valve, 34 ... Outdoor controller, 35 ... Four-way valve, 50a, 50b ... Remote control, 70 ... Arrow indicating the direction of refrigerant flow during cooling, 71 ... Arrow indicating the direction of refrigerant flow during heating
Claims (4)
前記第１室内機及び前記第２室内機は、それぞれ、室内空間の在室者を検知するカメラと、室内空気と熱交換する熱交換器と、室内空間に吹き出す気流の風向を制御する風向板と、を有し、
前記室外機は、圧縮機と、室外空気と熱交換する室外熱交換器と、冷媒の流量を制御する膨張弁と、有し、
前記カメラが人の存在を検知した場合、人の存在を検知した前記室内機の気流を在室者に向け、
前記カメラが人の存在を検知しない場合、人の存在を検知しない前記室内機をサーモオフ運転にするとともに、暖房運転であった場合は気流を上方向に向け、冷房運転であった場合は気流を下方向に向ける空調機システム。 A first indoor unit and a second indoor unit, and an outdoor unit connected to the first indoor unit and the second indoor unit,
Each of the first indoor unit and the second indoor unit includes a camera that detects an occupant in the indoor space, a heat exchanger that exchanges heat with the indoor air, and a wind direction plate that controls the direction of the airflow blown into the indoor space. And having
The outdoor unit has a compressor, an outdoor heat exchanger that exchanges heat with outdoor air, and an expansion valve that controls the flow rate of the refrigerant,
When the camera detects the presence of a person, the air current of the indoor unit that has detected the presence of the person is directed toward the occupant.
When the camera does not detect the presence of a person, the indoor unit that does not detect the presence of a person is put into a thermo-off operation, and if it is a heating operation, the airflow is directed upward, and if it is a cooling operation, the airflow is An air conditioner system that faces downward.
前記第１室内機及び前記第２室内機は、それぞれ、室内空間の在室者を検知するカメラと、室内空気と熱交換する熱交換器と、室内空間に吹き出す気流の風向を制御する風向板と、を有し、
前記室外機は、圧縮機と、室外空気と熱交換する室外熱交換器と、冷媒の流量を制御する膨張弁と、有し、
前記カメラが人の存在を検知した場合、人の存在を検知した前記室内機の前記熱交換器の温度が所定値以下であれば、在室者への気流を減少させ、
前記カメラが人の存在を検知しない場合、室内温度と設定温度との差が所定値以下であれば、暖房運転であった場合は気流を上方向に向け、冷房運転であった場合は気流を下方に向ける空調機システム。 A first indoor unit and a second indoor unit, and an outdoor unit connected to the first indoor unit and the second indoor unit,
Each of the first indoor unit and the second indoor unit includes a camera that detects an occupant in the indoor space, a heat exchanger that exchanges heat with the indoor air, and a wind direction plate that controls the direction of the airflow blown into the indoor space. And having
The outdoor unit has a compressor, an outdoor heat exchanger that exchanges heat with outdoor air, and an expansion valve that controls the flow rate of the refrigerant,
When the camera detects the presence of a person, if the temperature of the heat exchanger of the indoor unit that has detected the presence of a person is below a predetermined value, the air flow to the occupant is reduced,
When the camera does not detect the presence of a person, if the difference between the room temperature and the set temperature is less than or equal to a predetermined value, the airflow is directed upward in the heating operation and the airflow is in the cooling operation. An air conditioner system that faces downward.
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