JP6370049B2 - Air conditioner indoor unit - Google Patents
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Description
本発明は、空気調和機の室内機に関する。 The present invention relates to an indoor unit of an air conditioner.
空気調和機の室内機は、室内の空気温度をユーザーがリモコンで設定した設定温度に近づけるように能力を調整し空調するものである。この室内機に省エネ性や快適性を向上させるために、人を検知するための人感センサを搭載し、センサの情報から人の活動量を測定し、その値に応じて設定温度を変更するものがある。また、室内の輻射温度を測定するための輻射温度センサを搭載し、その値に応じて設定温度を変更するものがある。 The indoor unit of an air conditioner adjusts the capacity so that the indoor air temperature approaches a set temperature set by a user using a remote controller, and performs air conditioning. In order to improve energy saving and comfort, this indoor unit is equipped with a human sensor for detecting people, measures the amount of human activity from the sensor information, and changes the set temperature according to the value. There is something. In addition, there is a type in which a radiation temperature sensor for measuring the radiation temperature in a room is mounted and the set temperature is changed according to the value.
更に、この種の従来技術の精度を上げる手段としては、例えば特許文献1(特開平5−240483号公報)、特許文献2(特開2013−133970号公報)に記載のものがある。 Furthermore, as means for increasing the accuracy of this type of prior art, there are those described in, for example, Patent Document 1 (Japanese Patent Laid-Open No. 5-240483) and Patent Document 2 (Japanese Patent Laid-Open No. 2013-133970).
特許文献1では活動量をより正確に検知するために、人の移動量を検知し、それを加味して設定温度を補正する手段が記載されている。また、特許文献2には、人の位置を正確に検知するために、検知エリアを複数に分割し、検知した人の位置に応じて風速や設定温度を補正する手段が記載されている。 Patent Document 1 describes means for detecting a movement amount of a person and correcting the set temperature in consideration of the movement amount in order to detect the amount of activity more accurately. Patent Document 2 describes means for dividing a detection area into a plurality of parts to accurately detect a person's position and correcting the wind speed and the set temperature according to the detected person's position.
上記特許文献1に記載のものでは、例えば冷房では、よく動いている人は暑いと感じやすいため、人感センサにて活動量が大きいと検知した場合は、設定温度を下げてして空調能力を強める。活動量が小さい場合は逆に設定温度を上げて省エネを測るものである。しかし、人感センサは人が動いていないと検知できないものであるため、人の動きが小さく活動量は小と検知しても室内にたくさん人いる場合があり、人の発熱により空調負荷が大きくなり、暑く感じる場合がある。 In the thing of the said patent document 1, since it is easy to feel that the person who moves well in air conditioning is hot, for example, when it detects that the amount of activity is large with a human sensor, it lowers preset temperature and air-conditioning capability Strengthen. Conversely, when the amount of activity is small, the set temperature is raised to measure energy saving. However, human sensors cannot be detected unless a person is moving, so there may be many people in the room even if the movement of the person is small and the amount of activity is small. May feel hot.
また、上記特許文献2に記載のものについても、検知エリアを分割することで人の位置を把握することができるが、在室人数の増減による負荷変動を検知して空調制御はできない。 Moreover, although the person's position can be grasped | ascertained also about the thing of the said patent document 2 by dividing | segmenting a detection area, the air-conditioning control cannot be performed by detecting the load fluctuation | variation by increase / decrease in the number of people in a room.
本発明は、在室人数の増減による負荷の変動に対して適切に空調制御できる空気調和機の室内機を得ることを目的とする。例えば、人が増えた場合はすばやく能力を上げて室温が上昇してしまうのを防止することで快適性を確保し、また、人が減った場合はすばやく能力を下げて省エネ運転を行う空気調和機の室内機を得ることにある。 An object of this invention is to obtain the indoor unit of the air conditioner which can control air conditioning appropriately with respect to the fluctuation | variation of the load by increase / decrease in the number of people in a room. For example, when the number of people increases, the ability to quickly raise the capacity to prevent the room temperature from rising will ensure comfort, and when the number of people decreases, the air conditioning will quickly reduce the ability and perform energy-saving operation It is to obtain an indoor unit.
上記目的を達成するため、本発明は、室内の天井に設置される筐体と、該筐体の内部に設けられる送風機及び熱交換器と、前記筐体内部に室内空気を吸い込む吸込口と、該吸込口から吸い込んだ空気を前記送風機により室内へ吹き出す吹出口と、を備える空気調和機の室内機において、空調対象エリアの輻射温度を検知する輻射温度センサと、空調対象エリアの人体動作を検知する人感センサと、を備え、前記輻射温度センサが所定以上の温度変化量を検知し、かつ、前記人感センサが所定以上の活動量を検知した場合、室内の設定温度を補正、または、外部に設けられる圧縮機の回転数を変更する信号を送信することを特徴とする。 In order to achieve the above object, the present invention includes a housing installed on a ceiling in a room, a blower and a heat exchanger provided inside the housing, a suction port for sucking room air into the housing, In an indoor unit of an air conditioner including an air outlet that blows out air sucked from the air inlet into the room by the blower, a radiation temperature sensor that detects a radiation temperature of the air-conditioning target area, and a human body operation in the air-conditioning target area is detected A human sensor, and the radiation temperature sensor detects a temperature change amount greater than or equal to a predetermined value, and if the human sensor detects an activity amount greater than or equal to a predetermined value, the set temperature in the room is corrected, or A signal for changing the rotational speed of a compressor provided outside is transmitted.
本発明によれば、在室人数の増減による負荷の変動に対して適切に空調制御できる空気調和機の室内機を得ることができる。例えば、空調対象エリア内に人が増えた場合はすばやく空調能力を上げて室温の上昇による不快感を防止し、人が減った場合はすばやく空調能力を下げて消費電力を削減する効果が得られる。 ADVANTAGE OF THE INVENTION According to this invention, the indoor unit of the air conditioner which can control air conditioning appropriately with respect to the fluctuation | variation of the load by increase / decrease in the number of people in a room can be obtained. For example, if the number of people in the air-conditioning area increases, the air conditioning capability can be quickly increased to prevent discomfort due to an increase in room temperature, and if the number of people decreases, the air conditioning capability can be quickly reduced to reduce power consumption. .
以下、本発明の具体的実施例を図面に基づいて説明する。なお、各図において、同一符号を付した部分は同一或いは相当する部分を示している。 Hereinafter, specific examples of the present invention will be described with reference to the drawings. Note that, in each drawing, the portions denoted by the same reference numerals indicate the same or corresponding portions.
まず図1を用いて、人の活動量だけでは、在室人数による負荷変動に対し適切な空調制御ができないことについて、会議室に人が大勢入ってきた場合を説明する。 First, with reference to FIG. 1, a case where a large number of people enter the conference room will be described that appropriate air conditioning control cannot be performed with respect to load fluctuations due to the number of people in the room only by the amount of human activity.
入室のケース
図1に会議室に人が入室するケースを示す。入室前は1人であり活動量は小である。入室中は活動量が大と検知できるが、席に座って動かなくなると、活動量は小と検知してしまう。しかし、室内は人が増えて、人体の発熱により室温が上がり、冷房運転時では在室している利用者は暑いと感じる。空調機の運転動作としては、室内空気温度が上がってからそれを検知して、能力を上げるように制御されるため、実際に室内温度が下降するまでに遅れが生じ入室直後は暑いと感じる不快な状態が一定時間できてしまう。
Case of entering room FIG. 1 shows a case where a person enters the conference room. There is only one person before entering the room and the amount of activity is small. While entering the room, it can be detected that the amount of activity is large, but if it sits in a seat and stops moving, the amount of activity is detected as small. However, the number of people in the room increases, the temperature of the human body rises due to the heat generated by the human body, and the user who is in the room feels hot during the cooling operation. The operation of the air conditioner is controlled to increase the capacity by detecting it after the room air temperature has risen, so there is a delay until the room temperature actually drops, and it is uncomfortable to feel hot immediately after entering the room. Will be in a certain state for a certain period of time.
退室のケース
次に会議室から人が退室するケースを考えると(図示せず)、退室時は人が動くため、活動量が上がる、しかし退室後は在室者が減り、人体から発する熱量も減るため能力を抑えるべきであるがこの時検知した高い活動量に合わせて、能力を出す方向に設定温度を変更してしまう恐れがある。
Case of leaving the room Next, consider the case where a person leaves the meeting room (not shown). When the person leaves the room, the amount of activity increases because the person moves. The ability should be suppressed to decrease, but there is a risk that the set temperature will be changed in the direction of producing ability according to the high amount of activity detected at this time.
以上のように、入室も退室も活動量だけを検知していたのでは負荷の変動に合わせて適切な設定温度の変更ができない。 As described above, it is impossible to appropriately change the set temperature in accordance with the load variation if only the amount of activity is detected when entering or leaving the room.
図2はある空調エリア1に人が入室して、退室した時の空調負荷と空調機が発生する能力と室温の変化を示したものである。人が入室すると空調負荷が上がり、最初に人の周辺の空気温度が上がり、少し遅れて天井付近の温度、つまり空調機が検知できる室内空気温度が上昇する。 FIG. 2 shows changes in the air conditioning load, the capacity generated by the air conditioner, and the room temperature when a person enters an air conditioning area 1 and leaves the room. When a person enters the room, the air conditioning load increases, the air temperature around the person first increases, and the temperature near the ceiling, that is, the indoor air temperature that can be detected by the air conditioner rises slightly later.
そのため従来技術では室内機が室内空気温度の上昇を検知してから空調能力を高めるため、人が入室してから空調機が能力を高めるまでの間は人は暑さを感じることになる。本発明では人が入室した時に室内空気温度が上がる前に空調能力を高めて、室内空気温度の上昇を抑えて不快感を防止する。 Therefore, in the prior art, since the indoor unit detects an increase in the indoor air temperature and increases the air conditioning capability, the person feels heat from the time when the person enters the room until the air conditioner increases the capability. In the present invention, when a person enters the room, the air conditioning capability is increased before the room air temperature rises, and the rise in the room air temperature is suppressed to prevent discomfort.
また、人が退室した場合も同じように、人が退室してから少し遅れて室内空気温度が下がるため、従来技術ではこの間空調能力を落とすことなく運転を続けるため無駄な空調能力を使用していることになる。本発明では人が退室したあとすばやく空調能力を下げて消費電力を抑える。 Similarly, when a person leaves the room, the room air temperature drops a little after the person leaves the room, so the conventional technology uses a wasteful air-conditioning capacity to continue operation without reducing the air-conditioning capacity. Will be. In the present invention, after a person leaves the room, the air-conditioning capability is quickly reduced to reduce power consumption.
なお、図2は冷房運転時の場合を示しており、暖房運転時では反対に、人が入室したあと空調能力を下げ、退室したあと空調能力を高める。以下では、冷房運転時における本発明の実施例について説明する。 FIG. 2 shows the case of the cooling operation. In the heating operation, on the contrary, the air conditioning capacity is lowered after a person enters the room, and the air conditioning capacity is raised after the person leaves the room. Below, the Example of this invention at the time of air_conditionaing | cooling operation is described.
図3は、本発明の実施例に係る空気調和機の室内機における輻射温度センサおよび人感センサの検知エリア2を示す図(A)と、本発明の実施例に係る空気調和機の室内機の外観図(C)と、本発明の実施例に係る空気調和機の室内機の輻射温度センサおよび人感センサの取り付け位置を拡大した図(B)である。 FIG. 3A shows a detection area 2 of the radiation temperature sensor and the human sensor in the indoor unit of the air conditioner according to the embodiment of the present invention, and the indoor unit of the air conditioner according to the embodiment of the present invention. external view of (C), and is an enlarged view of the mounting position of the radiation temperature sensor and the human body sensor of the indoor unit of an air conditioner according to an embodiment of the present invention (B).
室内機11は、室内の天井に設置されており、室内に露出する部分に意匠性を考慮して取り付けられる化粧パネルと、室内の空気を吸い込む吸込口と、室内に向けて空気を吹き出す吹出口と、が設けられる。また、室内機11の筐体内部には図示しないが、送風機と、筐体に取り込んだ空気と冷媒とを熱交換させる熱交換器と、が設けられる。 The indoor unit 11 is installed on the ceiling of the room and is attached to a portion exposed to the room in consideration of design, a suction port for sucking indoor air, and an air outlet for blowing air toward the room And are provided. Moreover, although not shown in the housing | casing of the indoor unit 11, the air blower and the heat exchanger which heat-exchanges the air taken in in the housing | casing and a refrigerant | coolant are provided.
そして、輻射温度センサ12と人感センサ13,14,15,16は化粧パネル11のコーナー部に取り付けられている。輻射温度センサ12は空調エリアの人や床、物の発する輻射温度の平均値を検知する。人感センサ13〜16は人や物の発する赤外線の変化量を検知する。 The radiation temperature sensor 12 and the human sensors 13, 14, 15, and 16 are attached to the corner portion of the decorative panel 11. The radiation temperature sensor 12 detects an average value of radiation temperatures emitted by people, floors, and objects in the air-conditioning area. The human sensors 13 to 16 detect the amount of change in infrared rays emitted by a person or an object.
また、図示していないが、室内機11は、屋外に設置される室外機と冷媒配管を介して接続されている。室外機は、その内部に冷媒を圧縮する圧縮機と、外気と冷媒を熱交換させる熱交換器と、熱交換器に送風する送風機と、室内機と情報を送受信する送受信部と、圧縮機や送風機の制御を行う制御部と、を備える。 Moreover, although not shown in figure, the indoor unit 11 is connected to the outdoor unit installed outdoors via refrigerant | coolant piping. The outdoor unit includes a compressor that compresses the refrigerant therein, a heat exchanger that exchanges heat between the outside air and the refrigerant, a blower that blows air to the heat exchanger, a transmission / reception unit that transmits and receives information to and from the indoor unit, a compressor, A control unit that controls the blower.
本発明の内容を説明するために図4に人の入室があった場合の輻射温度と活動量の変化を示す。人感センサ13〜16による活動量は、人が入室して室内を移動している時と、退室しようとして室内を出口に向かって移動している時では同じ反応を示すため、人が入室したか退室したかが判別できない。 In order to explain the contents of the present invention, FIG. 4 shows changes in radiation temperature and activity when a person enters the room. The amount of activity by the human sensors 13 to 16 shows the same reaction when a person enters the room and moves inside the room, and when the person moves toward the exit in order to leave the room. It is not possible to determine whether the user has left the room.
ここで本発明では輻射温度センサ12の変化方向から人の入室と退室を見分ける。輻射温度センサ12は検知エリア内の人や物や床の輻射温度を検知しており、検知エリア内にある程度の人数の人が入ると輻射温度が上昇する。 Here, in the present invention, the person entering and leaving the room are distinguished from the direction of change of the radiation temperature sensor 12. The radiation temperature sensor 12 detects the radiation temperature of people, objects, and floors in the detection area, and the radiation temperature rises when a certain number of people enter the detection area.
また、人が退室すれば輻射温度が下がる。これを利用して人の入室と退室を判別する。続いて人の入室を判定した時点から所定時間前の所定期間の活動量からおおよその人数を推定する。 Also, if a person leaves the room, the radiation temperature will drop. This is used to discriminate between entering and leaving a person. Subsequently, the approximate number of people is estimated from the amount of activity in a predetermined period of time before the time when the person's entry is determined.
図5に本発明の制御フローを示す。S1では輻射温度センサ12で測定した輻射温度の変化量を用いて人の増減を判定する。 FIG. 5 shows a control flow of the present invention. In S <b> 1, the increase / decrease of the person is determined using the amount of change in the radiation temperature measured by the radiation temperature sensor 12.
図6にS1の詳細を示す。輻射温度センサ12は輻射温度を所定の間隔、例えば10秒おきに測定している。図6ではn=1は10秒を示す。輻射温度の変化量を測定するには、入室前の輻射温度T−入室後の輻射温度Tとしたいが、輻射温度だけでは入室開始と入室終了のタイミングを正確に判定することはできない。そのため、入室開始から入室終了までの時間を例えば10〜20人程度が会議室に入り終える時間として60秒(n=6)と設定する。 FIG. 6 shows details of S1. The radiation temperature sensor 12 measures the radiation temperature at predetermined intervals, for example, every 10 seconds. In FIG. 6, n = 1 indicates 10 seconds. In order to measure the amount of change in the radiation temperature, it is desired to use the radiation temperature T before entering the room-the radiation temperature T after entering the room. However, it is impossible to accurately determine the timing of entering and ending the entrance only by the radiation temperature. Therefore, the time from the start of entry to the end of entry is set to 60 seconds (n = 6), for example, as the time for about 10 to 20 people to finish entering the conference room.
判定方法は会議室に人が順次入ってくる場合を想定すると、輻射温度Tが少しずつ上がってくるため、前回値(T(n-1))と今回値(T(n))との差を変化量とすると、変化量が小さくなり閾値にひっかからない恐れがある。そこで、前回値は輻射温度Tの60秒前までの平均値、つまりT(n-6)〜T(n-1)の平均とし、今回測定値T(n)との差Bが閾値Cを超えたら人が増加したと判断する。 Assuming that people enter the conference room sequentially, the radiation temperature T gradually increases. Therefore, the difference between the previous value (T (n-1)) and the current value (T (n)). If the amount of change is defined as the amount of change, the amount of change may be small and the threshold may not be caught. Therefore, the previous value is the average value up to 60 seconds before the radiation temperature T, that is, the average of T (n-6) to T (n-1), and the difference B from the current measured value T (n) is the threshold value C. If it exceeds, it is judged that the number of people increased.
閾値Cの値であるが、輻射温度センサ12の測定値は人の増減がない場合でも例えば0.3℃程度のハンチングがあり、閾値を0.3以下にしてしまうと、人の増減が無いのに、増減があると誤判定してしまう。そのため実施例では閾値Cは0.4としている。 Although it is the value of threshold C , the measured value of the radiation temperature sensor 12 has a hunting of, for example, about 0.3 ° C. even when there is no increase / decrease in the number of people. It is misjudged that there is. Therefore, the threshold value C is set to 0.4 in the embodiment.
以上のように、輻射温度センサ12が閾値C以上となるような所定以上の温度変化量を検知した場合に在室人数の増減があったと判断する。 As described above, it is determined that the number of people in the room has increased or decreased when the radiation temperature sensor 12 detects a temperature change amount that is equal to or greater than a predetermined value that is equal to or greater than the threshold value C.
次にS2では人感センサ13〜16の活動量から概略の人数を推定する。在室人数は人感センサ13〜16の活動量を基に推定する。本発明ではより実際の人数に近い値を推定するために人感センサ13〜16を複数個用いる。例えば本実施例では人感センサ13〜16は4つ用い、4つそれぞれが個別に活動量から人数を推定する。これにより同じ人を何回も測定してしまう誤判定を減らすことができる。 Next, in S2, the approximate number of people is estimated from the amount of activity of the human sensors 13-16. The number of people in the room is estimated based on the amount of activity of the human sensors 13-16. In the present invention, a plurality of human sensors 13 to 16 are used in order to estimate a value closer to the actual number of people. For example, in the present embodiment, four human sensors 13 to 16 are used, and each of the four human sensors individually estimates the number of persons from the amount of activity. Thereby, it is possible to reduce misjudgment that measures the same person many times.
更に、表1に示すように判定人数が増えるにしたがい、同じ人を何回も測定してしまう可能性が上がるため、1人と判定するための活動量の閾値を上げて人数を判定しにくくする。例えば、2人目の判定は、「大」の活動量の場合には3回検知すると行われるが、3人目の判定は、4回検知しなければ行われない。なお、人数の増加に伴う回数の閾値の上げ方は、大きい活動量よりも小さい活動量の方を多くする。 Furthermore, as shown in Table 1, as the number of people to be judged increases, the possibility of measuring the same person many times increases, so it is difficult to judge the number of people by raising the threshold of the amount of activity for judging one person. To do. For example, the determination of the second person is performed when the activity amount is “large” and detected three times, but the determination of the third person is not performed unless detected four times. In addition, the way of raising the threshold value of the number of times with the increase in the number of people increases the smaller amount of activity than the larger amount of activity.
S3ではS2で判定した人数に基づき、設定温度補正値を算出する。設定温度補正値は室温を適切な温度に保つため、人の人数つまり負荷変動の大きさに合わせて決定される必要がある。例えば10人なら設定温度補正1℃、20人なら2℃というようにする。 In S3, a set temperature correction value is calculated based on the number of people determined in S2. The set temperature correction value needs to be determined in accordance with the number of people, that is, the magnitude of load fluctuation in order to keep the room temperature at an appropriate temperature. For example, the set temperature correction is 1 ° C. for 10 people and 2 ° C. for 20 people.
ただしこれはある定格能力の空調機の場合であり、定格能力が異なると判定した人数と設定温度補正値の関係を変える必要がある。本発明では設定温度を1℃変更すると例えば空調能力は定格能力の10%程度変化することを利用する。例えば定格能力14kWの空調機であれば設定温度を1℃補正すると空調能力が1.4kW変化する。 However, this is the case of an air conditioner with a certain rated capacity, and it is necessary to change the relationship between the number of persons determined to have different rated capacities and the set temperature correction value. In the present invention, when the set temperature is changed by 1 ° C., for example, the air conditioning capacity is changed by about 10% of the rated capacity. For example, for an air conditioner with a rated capacity of 14kW, if the set temperature is corrected by 1 ° C, the air conditioning capacity changes by 1.4kW.
ここで、人の発熱量は一般的に0.1kWとされている。すなわち、人の発熱量が1.4kWになれば設定温度を1℃変更してもよいことになる。人の発熱量1.4kWに達するためには、1.4(kW)÷0.1(kw)=14(人)となり、14人を検知した場合に設定温度1℃を補正する。この方法であれば、定格能力が異なる空調機でも適切な設定温度補正値を与えることができる。 Here, the amount of heat generated by a person is generally 0.1 kW. That is, the set temperature may be changed by 1 ° C. when the amount of heat generated by the person reaches 1.4 kW. In order to reach a human calorific value of 1.4 kW, 1.4 (kW) ÷ 0.1 (kw) = 14 (person), and when 14 people are detected, the set temperature of 1 ° C is corrected. With this method, an appropriate set temperature correction value can be given even for air conditioners with different rated capacities.
S4ではS3で算出された設定温度補正値を更新するか否かを決定する。例えば今回算出された設定温度補正値が前回と同符号かつ今回値の絶対値の方が大きければ、人が更に増えた、または更に減ったと考えられるため、今回値に更新する。 In S4, it is determined whether or not to update the set temperature correction value calculated in S3. For example, if the set temperature correction value calculated this time has the same sign as the previous time and the absolute value of the current value is larger, it is considered that the number of people has further increased or decreased, so that it is updated to the current value.
前回と今回で符号が変わった場合は人が増えていた状態から人が減ったと考えられるため、その差分だけ空調能力を変化させる必要があるため、今回値を加算する。算出された設定温度補正が0であった場合や、今回値の絶対値の方が小さい場合は更新しない。 When the sign changes between the previous time and this time, it is considered that the number of people has decreased from the state where the number of people has increased. Therefore, it is necessary to change the air conditioning capacity by the difference, so this value is added. When the calculated set temperature correction is 0, or when the absolute value of the current value is smaller, no update is performed.
一例を挙げて説明すると、冷房運転時で設定温度が25℃である場合、まず人の入室があり補正値として−1℃が算出されると設定温度が24℃に更新される。その後、さらに人の入室があり補正値として前回と同符号かつ絶対値が大きい−2℃が算出されると設定温度は今回値により23℃に更新される。続いて、今度は人の退室があり補正値として前回と異なる+1℃が算出されると設定温度に加算されて24℃に更新される。 For example, when the set temperature is 25 ° C. during the cooling operation, when a person enters the room and −1 ° C. is calculated as a correction value, the set temperature is updated to 24 ° C. After that, when there is a further person entering the room and -2 ° C having the same sign as the previous value and a large absolute value is calculated as the correction value, the set temperature is updated to 23 ° C by the current value. Subsequently, when there is a person leaving the room and + 1 ° C., which is different from the previous time, is calculated as the correction value, it is added to the set temperature and updated to 24 ° C.
なお、初回の補正の場合、設定温度補正が0でなければそのまま補正がされる。ここまでの制御のとおり、S1により輻射温度センサ12が所定以上の温度変化量を検知することで人の増減があると判定し、S2により人感センサ13〜16も所定以上の活動量を検知することで、S3により必要な設定温度の補正値が算出され、設定温度が補正されることになる。 In the case of the first correction, if the set temperature correction is not 0, the correction is performed as it is. As described above, the radiation temperature sensor 12 determines that there is an increase or decrease in the number of people by detecting the temperature change amount greater than or equal to the predetermined value in S1, and the presence sensors 13 to 16 also detect the amount of activity greater than or equal to the predetermined value in S2. As a result, a necessary set temperature correction value is calculated in S3, and the set temperature is corrected.
次にS6では設定温度補正値をクリアするかどうかを判定する。判定方法は所定時間経過後に室温が設定温度を補正した方向に変化していたら、本制御が効いたとして設定温度補正をクリアする。 Next, in S6, it is determined whether or not the set temperature correction value is cleared. In the determination method, if the room temperature has changed in the direction in which the set temperature is corrected after the lapse of a predetermined time, the set temperature correction is cleared assuming that this control is effective.
例えば冷房時、設定温度27℃でマイナス側に設定温度補正していた場合、室温が27℃より低くなっていれば設定温度補正をクリアする。設定温度を補正した方向に変化していなかった場合は、制御が効いていないと考えられるため、能力補正運転を継続する。更に所定時間経過した場合は、室温の変化に関係なく設定温度補正をクリアする。 For example, when the set temperature is corrected to the minus side at the set temperature of 27 ° C. during cooling, the set temperature correction is cleared if the room temperature is lower than 27 ° C. If the set temperature has not changed in the corrected direction, it is considered that the control is not effective, so the capacity correction operation is continued. Further, when a predetermined time has elapsed, the set temperature correction is cleared regardless of the change in the room temperature.
このように、S6では、室温が設定温度の補正した方向に変化したときに補正前の設定温度に戻す方法と、所定時間の経過により補正前の設定温度に戻す方法で、設定温度補正をクリアする。 As described above, in S6, the set temperature correction is cleared by the method of returning to the set temperature before correction when the room temperature changes in the corrected direction of the set temperature and the method of returning to the set temperature before correction after a predetermined time has elapsed. To do.
以上のように、本実施例では、輻射温度センサ12が所定以上の温度変化量を検知し、かつ、人感センサ13〜16が所定以上の活動量を検知した場合に設定温度を補正することで、入退室による在室人数の増減に対して早期にかつ適切に空調制御を行うことができる。 As described above, in the present embodiment, the set temperature is corrected when the radiation temperature sensor 12 detects a temperature change amount greater than or equal to a predetermined value and the human sensors 13 to 16 detect an activity amount greater than or equal to the predetermined value. Thus, air conditioning control can be performed early and appropriately with respect to the increase or decrease of the number of people in the room due to entering and leaving the room.
ここで、本実施例では設定温度を補正することで空調能力を増減させるが、室外機に設けられる圧縮機の回転数を変更する信号を直接送信するようにしても良い。具体的には、冷房運転時に輻射温度センサ12が検知する温度変化量がプラスのときは圧縮機の回転数を上げる信号を送信し、マイナスのときは回転数を下げる信号を送信する。また、暖房運転時は反対に、輻射温度センサ12が検知する温度変化量がプラスのときは圧縮機の回転数を下げる信号を送信し、マイナスのときは回転数を上げる信号を送信する。 Here, in this embodiment, the air conditioning capacity is increased or decreased by correcting the set temperature, but a signal for changing the rotation speed of the compressor provided in the outdoor unit may be directly transmitted. Specifically, when the amount of temperature change detected by the radiation temperature sensor 12 during cooling operation is positive, a signal for increasing the rotational speed of the compressor is transmitted, and when it is negative, a signal for decreasing the rotational speed is transmitted. On the contrary, when the temperature change detected by the radiation temperature sensor 12 is positive, a signal for decreasing the rotational speed of the compressor is transmitted, and when it is negative, a signal for increasing the rotational speed is transmitted.
なお、上記した実施例は本発明を分かり易く説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。 The above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
1…空調エリア
2…輻射温度センサおよび人感センサの検知エリア
11…室内ユニット(化粧パネル)
12…輻射温度センサ
13〜16…人感センサ
DESCRIPTION OF SYMBOLS 1 ... Air-conditioning area 2 ... Radiation temperature sensor and human sensor detection area 11 ... Indoor unit (decorative panel)
12 ... Radiation temperature sensor 13-16 ... Human sensor
Claims (10)
空調対象エリアの輻射温度を検知する輻射温度センサと、空調対象エリアの人体動作を検知する人感センサと、を備え、
前記輻射温度センサが検知した温度変化量を元に人の増減を判別し、かつ、前記人感センサが検知した活動量を元に変化した人数を推定し、前記2つの判定結果が所定値以上の場合、
室内の設定温度を補正、または、外部に設けられる圧縮機の回転数を変更する信号を送信することを特徴とする空気調和機の室内機。 A housing installed on the ceiling of the room, a blower and a heat exchanger provided inside the housing, a suction port for sucking indoor air into the housing, and the air sucked from the suction port. In the indoor unit of the air conditioner comprising a blowout port that blows out into the room by
A radiation temperature sensor for detecting the radiation temperature in the air-conditioning target area, and a human sensor for detecting human body movement in the air-conditioning target area,
Based on the amount of temperature change detected by the radiation temperature sensor, the increase or decrease of the person is determined, and the number of persons who have changed based on the amount of activity detected by the human sensor is estimated. in the case of,
An indoor unit of an air conditioner that transmits a signal for correcting a set temperature in a room or changing a rotation speed of a compressor provided outside.
冷房運転が実行されている場合、
前記温度変化量がプラスのときには、前記設定温度をマイナスに補正、または、外部に設けられる圧縮機の回転数を上げる信号を送信し、
前記温度変化量がマイナスのときには、前記設定温度をプラスに補正、または、外部に設けられる圧縮機の回転数を下げる信号を送信することを特徴とする空気調和機の室内機。 In the indoor unit of the air conditioner according to claim 1,
When cooling operation is performed,
When the temperature change amount is positive, the set temperature is corrected to a negative value, or a signal for increasing the rotational speed of a compressor provided outside is transmitted,
An indoor unit of an air conditioner, wherein when the temperature change amount is negative, the set temperature is corrected to be positive, or a signal for reducing the rotational speed of a compressor provided outside is transmitted.
暖房運転が実行されている場合、
前記温度変化量がプラスのときには、前記設定温度をマイナスに補正、または、外部に設けられる圧縮機の回転数を下げる信号を送信し、
前記温度変化量がマイナスのときには、前記設定温度をプラスに補正、または、外部に設けられる圧縮機の回転数を上げる信号を送信することを特徴とする空気調和機の室内機。 In the indoor unit of the air conditioner according to claim 1,
If heating operation is being performed,
When the temperature change amount is positive, the set temperature is corrected to a negative value, or a signal for reducing the rotational speed of a compressor provided outside is transmitted,
An indoor unit for an air conditioner, wherein when the temperature change amount is negative, the set temperature is corrected to be positive, or a signal for increasing the rotational speed of a compressor provided outside is transmitted.
室内空気の温度を検知する吸込温度センサを備え、前記設定温度を補正した後、前記吸込温度センサが検知する吸込温度が補正した方向に変化した場合、補正した設定温度を補正前の設定温度に戻すことを特徴とする空気調和機の室内機。 In the indoor unit of the air conditioner according to claim 2 or 3,
A suction temperature sensor that detects the temperature of the indoor air is provided, and after correcting the set temperature, if the suction temperature detected by the suction temperature sensor changes in the corrected direction, the corrected set temperature becomes the set temperature before correction. An indoor unit of an air conditioner characterized by being returned.
前記設定温度を補正した後、所定時間が経過したら補正した設定温度を補正前の設定温度に戻すことを特徴とする空気調和機の室内機。 In the indoor unit of the air conditioner according to claim 2 or 3,
An indoor unit for an air conditioner, wherein after the set temperature is corrected, the corrected set temperature is returned to the set temperature before the correction when a predetermined time elapses.
前記人感センサが検知した活動量に基いて設定温度の補正値が決定されることを特徴とする空気調和機の室内機。 In the indoor unit of an air conditioner according to claim 2 or claim 3,
An indoor unit for an air conditioner, wherein a correction value for a set temperature is determined based on an amount of activity detected by the human sensor.
それぞれが異なる検知範囲を有する複数の人感センサを備え、
前記活動量の検知は、前記複数の人感センサが個別に行うことを特徴とする空気調和機の室内機。 The indoor unit of the air conditioner according to claim 6,
A plurality of human sensors each having a different detection range,
The indoor unit of an air conditioner, wherein the activity amount is detected individually by the plurality of human sensors.
前記人感センサの検知した活動量から推定される在室人数と空気調和機の定格推定能力に基いて設定温度の補正値が決定されることを特徴とする空気調和機の室内機。 In the indoor unit of the air conditioner according to claim 2 or 3,
An indoor unit of an air conditioner, wherein the correction value of the set temperature based on the rated estimated performance of occupancy human number and the air conditioner which is estimated from the detected amount of activity of the human sensor is determined.
前記設定温度が補正された後に、再度、前記輻射温度センサが所定以上の温度変化量を検知し、かつ、前記人感センサが所定以上の活動量を検知したとき、今回の補正値が前回と同符号であって前回よりも絶対値が大きい場合、今回の補正値により補正した設定温度に更新されることを特徴とする空気調和機の室内機。 In the indoor unit of the air conditioner according to claim 2 or 3,
After the set temperature is corrected, when the radiation temperature sensor detects a temperature change amount that is greater than or equal to a predetermined value and the human sensor detects an activity amount that is greater than or equal to a predetermined value, the current correction value is An indoor unit for an air conditioner characterized in that when the absolute value is greater than the previous value, the indoor unit of the air conditioner is updated to the set temperature corrected by the current correction value.
前記設定温度が補正された後に、再度、前記輻射温度センサが所定以上の温度変化量を検知し、かつ、前記人感センサが所定以上の活動量を検知したとき、今回の補正値が前回と逆符号である場合、今回の補正値を前回補正した設定温度に加算することを特徴とする空気調和機の室内機。 In the indoor unit of the air conditioner according to claim 2 or 3,
After the set temperature is corrected, when the radiation temperature sensor detects a temperature change amount that is greater than or equal to a predetermined value and the human sensor detects an activity amount that is greater than or equal to a predetermined value, the current correction value is An indoor unit of an air conditioner characterized in that when it is an inverse sign, the current correction value is added to the previously corrected set temperature.
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