JP2020106177A - Air conditioner - Google Patents

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JP2020106177A
JP2020106177A JP2018243844A JP2018243844A JP2020106177A JP 2020106177 A JP2020106177 A JP 2020106177A JP 2018243844 A JP2018243844 A JP 2018243844A JP 2018243844 A JP2018243844 A JP 2018243844A JP 2020106177 A JP2020106177 A JP 2020106177A
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wind direction
wind
direction plate
person
unit
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JP7223256B2 (en
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祐 大久保
Yu Okubo
祐 大久保
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Fujitsu General Ltd
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Abstract

To improve average blowing efficiency in an outdoor machine provided with a wind direction plate for deflecting a direction of wind brown out from a blowout port.SOLUTION: An outdoor machine 1 includes a person detection sensor 11 for detecting existence of a person existing near the front of an outdoor machine 1, a motor 12 for rotating a vertical wind direction plate and a control unit 20 for controlling these units. The control unit 20 includes a wind direction plate management section 30 for managing a brownout direction of the vertical wind direction plate and a wind direction plate control section 24 for controlling the motor 12. The wind direction plate control section 24 includes an instructed wind direction storage section 32 and a parameter determination section 31, and the instructed wind direction storage section 32 stores a state condition indicating whether a person exists or not and an instructed wind direction while previously making them correspond to each other, and the parameter determination section 31, when determining that the person detection state outputted from the person detection sensor 11 satisfies the state condition, extracts an instruction wind direction corresponding to the state condition from the instructed wind direction storage section 32 and outputs the instructed wind direction to the wind direction plate control section 24.SELECTED DRAWING: Figure 2

Description

本発明は、空気調和機に係わり、より詳細には、室外機の送風方向を偏向させる風向ガイドに関する。 The present invention relates to an air conditioner, and more particularly, to a wind direction guide that deflects a blowing direction of an outdoor unit.

従来、室外機に装着される風向ガイドは、例えば図５に示すものが開示されている。（例えば、特許文献１参照。）。この風向ガイド１０４は室外機１０１の前面側の吹出口１０２の前面に装着される。 Conventionally, the wind direction guide mounted on the outdoor unit has been disclosed, for example, as shown in FIG. (For example, refer to Patent Document 1). The wind direction guide 104 is mounted on the front surface of the air outlet 102 on the front surface side of the outdoor unit 101.

風向ガイド１０４は上下方向に平行に配置された複数の風向板１０５を備えており、各風向板１０５は室外機１０１の前面から吹き出される風を上方へ偏向させるように角度を付けて固定されている。この風向ガイド１０４を室外機１０１に装着することにより、風向ガイド１０４を未装着の場合に室外機１０１の前面方向に吹出される風を上方へ偏向させる。このため、例えば通勤・通学時間帯に室外機１０１の前面を横切る人に吹出された風が直接吹き付けられて人を不快にさせることがない。この前面方向に吹出される風は、夏は熱風、冬は冷風であり、人にとっては非常に不快な風である。 The wind direction guide 104 includes a plurality of wind direction plates 105 arranged in parallel in the vertical direction, and each wind direction plate 105 is fixed at an angle so that the wind blown from the front surface of the outdoor unit 101 is deflected upward. ing. By mounting the wind direction guide 104 on the outdoor unit 101, the wind blown toward the front of the outdoor unit 101 when the wind direction guide 104 is not mounted is deflected upward. Therefore, for example, the wind blown to a person who crosses the front surface of the outdoor unit 101 during the commuting/commuting time is not directly blown to make the person uncomfortable. The wind blown toward the front side is hot wind in summer and cold wind in winter, which is very uncomfortable for humans.

しかしながら、このような風向ガイドを室外機に装着して吹出し方向を前面から上方に偏向させた場合、送風経路が狭くなるため通風抵抗が増えて送風効率が低下し、結果的に、電気代の増加や空調能力の低下が発生するという問題が有った。 However, when such an air flow guide is attached to an outdoor unit and the blowing direction is deflected upward from the front, the air flow path becomes narrower, so the air flow resistance increases and the air flow efficiency decreases, resulting in a reduction in the electricity bill. There was a problem that increase and decrease of air conditioning capacity occurred.

特開平１１−２０１５４２号公報（段落番号０００９〜００１２）Japanese Patent Laid-Open No. 11-201542 (paragraph numbers 0009 to 0012)

本発明は以上述べた問題点を解決し、吹出口から吹出される風の方向を偏向させる風向板を備えた室外機において、平均的な送風効率を改善することを目的とする。 SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and improve the average air blowing efficiency in an outdoor unit equipped with an air flow direction plate that deflects the direction of the air blown from the air outlet.

本発明は上述の課題を解決するため、本発明の請求項１に記載の発明は、吹出口から吹出される風の吹出し方向を偏向させる風向板を備えた室外機を含む空気調和機であって、 前記室外機は、前記室外機の前方の人の存在を検知して人検知状態として出力する人検知センサと、前記吹出口から吹出される風を偏向させるために前記風向板を回転させるモータと、入力された前記吹出し方向を表す指示風向に基づいて前記モータを制御する風向板制御部と、指示風向記憶手段と、パラメータ判定手段とを備え、前記指示風向記憶手段は、人が存在するか否かを示す状態条件と前記指示風向を予め対応させて記憶しており、 前記パラメータ判定手段は、前記人検知状態が前記状態条件を満足すると判定した時、前記状態条件と対応する前記指示風向を前記指示風向記憶手段から抽出して前記風向板制御部へ出力することを特徴とする。 In order to solve the above problems, the present invention provides an air conditioner that includes an outdoor unit including an airflow direction plate that deflects a blowing direction of wind blown from an outlet. The outdoor unit rotates the wind direction plate to deflect a wind that is blown out from the air outlet and a human detection sensor that detects the presence of a person in front of the outdoor unit and outputs the human detection state. A motor, an airflow direction plate control unit that controls the motor based on the input instruction wind direction indicating the blowing direction, an instruction wind direction storage unit, and a parameter determination unit, wherein the instruction wind direction storage unit includes a person The state condition indicating whether or not and the indicated wind direction are stored in association with each other in advance, and the parameter determination means, when it is determined that the human detection state satisfies the state condition, the condition corresponding to the state condition is determined. The indicated wind direction is extracted from the indicated wind direction storage means and output to the wind direction plate control unit.

また、本発明の請求項２に記載の発明は、吹出口から吹出される風の吹出し方向を偏向させる風向板を備えた室外機を含む空気調和機であって、前記室外機は、時刻を出力する時計部と、前記吹出口から吹出される風を偏向させるために前記風向板を回転させるモータと、入力された前記吹出し方向を表す指示風向に基づいて前記モータを制御する風向板制御部と、指示風向記憶手段と、パラメータ判定手段とを備え、前記指示風向記憶手段は、時間帯を示す状態条件と前記指示風向を予め対応させて記憶しており、前記パラメータ判定手段は、前記時刻が前記状態条件を満足すると判定した時、前記状態条件と対応する前記指示風向を前記指示風向記憶手段から抽出して前記風向板制御部へ出力することを特徴とする。 Further, the invention according to claim 2 of the present invention is an air conditioner including an outdoor unit provided with a wind direction plate that deflects a blowing direction of a wind blown from an outlet, wherein the outdoor unit sets a time. A clock unit that outputs, a motor that rotates the wind direction plate to deflect the wind blown from the outlet, and a wind direction plate control unit that controls the motor based on an input wind direction indicating the input blowing direction. And an instruction wind direction storage means and a parameter determination means, wherein the instruction wind direction storage means stores a state condition indicating a time zone and the instruction wind direction in association with each other in advance, and the parameter determination means is configured to store the time. Is determined to satisfy the state condition, the designated wind direction corresponding to the state condition is extracted from the designated wind direction storage means and output to the wind direction plate control unit.

以上の手段を用いることにより、本発明による空気調和機によれば、送風方向を偏向させる風向板を備えた室外機において、室外機に備えられた風向板による送風方向の偏向を予め定めた条件が満たされた時のみ行うことで、平均的な送風効率を改善することができる。 By using the above means, according to the air conditioner of the present invention, in the outdoor unit provided with the wind direction plate that deflects the air blowing direction, the deflection of the air blowing direction by the wind direction plate provided in the outdoor unit is set in advance. It is possible to improve the average blowing efficiency by performing only when the above condition is satisfied.

本発明による室外機の実施例を示す外観斜視図である。It is an appearance perspective view showing an example of an outdoor unit by the present invention. 本発明による空気調和機の制御構成を示すブロック図である。It is a block diagram which shows the control structure of the air conditioner by this invention. 指示風向テーブルの内容を説明する説明図である。It is explanatory drawing explaining the content of the instruction wind direction table. 人の移動と室外機の風向板の動作との関係を説明する説明図である。It is explanatory drawing explaining the relationship between movement of a person and operation|movement of the wind direction plate of an outdoor unit. 従来の室外機を示す斜視図である。It is a perspective view which shows the conventional outdoor unit.

以下、本発明の実施の形態を、添付図面に基づいた実施例として詳細に説明する。なお、本発明に直接関係のない冷媒回路や熱交換器用のファンモータについては図示と説明を省略する。 Hereinafter, embodiments of the present invention will be described in detail as examples based on the accompanying drawings. The illustration and description of the fan circuit for the refrigerant circuit and the heat exchanger, which are not directly related to the present invention, are omitted.

図１は室外機１の外観斜視図であり、図１（Ａ）は前面方向の斜め右上から見た図、また、図１（Ｂ）は図１（Ａ）の室外機１の前面に後述する風向ガイド7を装着した場合を示している。なお、室内機については図示を省略する。また、太い矢印で示す方向が室外機１の前面が向かう方向である。 FIG. 1 is an external perspective view of the outdoor unit 1. FIG. 1(A) is a view seen from an obliquely upper right side in the front direction, and FIG. 1(B) is described later on the front surface of the outdoor unit 1 of FIG. 1(A). It shows the case where the wind direction guide 7 is attached. Illustration of the indoor unit is omitted. The direction indicated by the thick arrow is the direction in which the front surface of the outdoor unit 1 faces.

本発明による空気調和機の室外機１は、図１（Ａ）の外観斜視図で示すように、左右一対の脚体１ａを備え、室外機１の底面を覆う金属製のベース５と、ベース５を覆う外胴（筐体）６とを備えている。外胴６は室外機１の前面に設けられた樹脂製の前面パネル２と、室外機１の左側に設けられた金属製の左側パネル６ｂと、室外機１の右側に設けられた金属製の右側パネル６ａと、これら前面パネル２と右側パネル６ａと左側パネル６ｂの上面を覆う金属製の天板３で形成されている。 As shown in the external perspective view of FIG. 1A, the outdoor unit 1 of the air conditioner according to the present invention includes a pair of left and right legs 1a, a metal base 5 that covers the bottom surface of the outdoor unit 1, and a base. An outer case (housing) 6 that covers 5 is provided. The outer case 6 includes a resin front panel 2 provided on the front surface of the outdoor unit 1, a metal left panel 6b provided on the left side of the outdoor unit 1, and a metal left panel provided on the right side of the outdoor unit 1. It is formed of a right panel 6a and a top plate 3 made of metal that covers the upper surfaces of the front panel 2, the right panel 6a, and the left panel 6b.

なお、室外機１の天板３の右側内部には室外機１を制御し、金属製の箱で覆われた制御ユニット２０が配置されている。また、前面パネル２の中央から左側には通風用のスリットを複数備えたファンガード２ａが設けられている。なお、前面パネル２が配置された側が室外機１の前面（前面側）である。 A control unit 20 that controls the outdoor unit 1 and is covered with a metal box is disposed inside the right side of the top plate 3 of the outdoor unit 1. A fan guard 2a having a plurality of ventilation slits is provided on the left side from the center of the front panel 2. The side on which the front panel 2 is arranged is the front surface (front surface side) of the outdoor unit 1.

図１（Ｂ）に示すように風向ガイド７はファンガード２ａの前面側に配置された樹脂製の枠である。また、風向ガイド７の右側内部にはモータ１２が配置されており、このモータ１２の左側は縦方向に仕切板７３が配置されている。一方、風向ガイド７の左側には左側板７１が仕切板７３と平行に設けられている。そして、この左側板７１と仕切板７３との間には複数の上下風向板７２が上下方向に平行に配置されている。 As shown in FIG. 1B, the wind direction guide 7 is a resin frame arranged on the front side of the fan guard 2a. A motor 12 is arranged inside the right side of the wind direction guide 7, and a partition plate 73 is arranged vertically on the left side of the motor 12. On the other hand, a left side plate 71 is provided on the left side of the wind direction guide 7 in parallel with the partition plate 73. A plurality of vertical airflow direction plates 72 are arranged in parallel in the vertical direction between the left side plate 71 and the partition plate 73.

なお、上下風向板７２は左右に長い長方形の板であり、上下風向板７２の左側は左側板７１に、また、上下風向板７２の右側は仕切板７３に、それぞれ軸支されている。そして、これらの上下風向板７２は上下方向に連結されており、モータ１２の回転に連動して上下風向板７２の前方の辺が上下方向に回転するようになっている。この上下風向板７２の回転により、ファンガード２ａから前面側に送風される風を前面側から前面上方の範囲で偏向させる。 The vertical airflow direction plate 72 is a rectangular plate that is long in the left-right direction, and the left side of the vertical airflow direction plate 72 is pivotally supported by the left side plate 71, and the right side of the vertical airflow direction plate 72 is pivotally supported by the partition plate 73. The vertical airflow direction plates 72 are connected in the vertical direction, and the front side of the vertical airflow direction plate 72 is rotated in the vertical direction in association with the rotation of the motor 12. By the rotation of the vertical airflow direction plate 72, the air blown from the fan guard 2a to the front surface side is deflected in the range from the front surface side to the front surface upper side.

一方、風向ガイド７の上面には人検知センサ１１が前面方向に向かって備えられており、風向ガイド７の左右方向で１２０°の範囲で人の存在を検知することができる。このため、風向ガイド７の左右の広い範囲で人検知が可能であり、室外機１は人を検知している間、上下風向板７２を上方に回転させ、人を検知していない間、上下風向板７２を前面側に回転させるようになっている。これについては後で詳細に説明する。 On the other hand, a person detection sensor 11 is provided on the upper surface of the wind direction guide 7 in the front direction, and can detect the presence of a person in the range of 120° in the left-right direction of the wind direction guide 7. Therefore, a person can be detected in a wide range on the left and right of the wind direction guide 7, and the outdoor unit 1 rotates the vertical wind direction plate 72 upward while detecting a person, and moves vertically while the person is not detected. The wind direction plate 72 is adapted to rotate to the front side. This will be described in detail later.

図２は本発明による空気調和機１０の制御ブロック図である。この空気調和機１０は室外機１と、この室外機１と通信接続された室内機４０を備えている。そして、室外機１は室外機1全体を制御する制御ユニット２０と、前述した人検知センサ１１と、上下風向板７２を回転させるモータ１２を備えている。 FIG. 2 is a control block diagram of the air conditioner 10 according to the present invention. The air conditioner 10 includes an outdoor unit 1 and an indoor unit 40 communicatively connected to the outdoor unit 1. The outdoor unit 1 includes the control unit 20 that controls the entire outdoor unit 1, the above-described person detection sensor 11, and the motor 12 that rotates the vertical wind direction plate 72.

制御ユニット２０は、時刻を出力する時計部２１と、室外機１の運転状態を取得する運転状態取得部２２と、入力された交流電源を直流電源に変換するコンバータ（電力部）２３と、入力された風の吹出し方向を表す指示風向に基づいてモータ１２を制御する風向板制御部２４と、室外機１の制御状態に応じて風向ガイド７からの送風方向を指示する風向板管理部３０を備えている。なお、コンバータ（電力部）２３はパワー素子２３ａと温度センサ２３ｂを内部に備えている。 The control unit 20 includes a clock unit 21 that outputs the time, an operating state acquisition unit 22 that acquires the operating state of the outdoor unit 1, a converter (electric power unit) 23 that converts the input AC power supply into a DC power supply, and an input. The wind direction plate control unit 24 that controls the motor 12 based on the designated wind direction that indicates the blowing direction of the generated wind, and the wind direction plate management unit 30 that indicates the blowing direction from the wind direction guide 7 according to the control state of the outdoor unit 1. I have it. The converter (power unit) 23 includes a power element 23a and a temperature sensor 23b inside.

そして、時計部２１は時刻を、運転状態取得部２２は急速運転中やサーモオフなどの室外機１における運転状態を、コンバータ２３はパワー素子２３ａの表面温度を温度センサ２３ｂで測定した測定温度であるパワー素子温度を、各状態パラメータとして風向板管理部３０へそれぞれ出力している。また、人検知センサ１１は、状態パラメータの一つである人検知状態を風向板管理部３０へ出力している。なお、コンバータ２３のパワー素子２３ａの代わりに図示しないインバータのパワー素子の温度をパワー素子温度としてもよい。 Then, the clock unit 21 is the time, the operation state acquisition unit 22 is the operation state of the outdoor unit 1 such as during rapid operation or thermo-off, and the converter 23 is the measured temperature obtained by measuring the surface temperature of the power element 23a with the temperature sensor 23b. The power element temperature is output to the wind direction plate management unit 30 as each state parameter. Further, the human detection sensor 11 outputs the human detection state, which is one of the state parameters, to the wind direction plate management unit 30. Instead of the power element 23a of the converter 23, the temperature of the power element of the inverter (not shown) may be used as the power element temperature.

このように室外機１は、室外機１に関する制御状態のパラメータである状態パラメータを内部で生成する。この状態パラメータは風向板管理部３０のみでなく、従来から制御ユニット２０全体で空調制御のために使用されている。ただし、人検知センサ１１の状態パラメータは本発明にて新規に使用するものである。 In this way, the outdoor unit 1 internally generates a state parameter that is a parameter of the control state regarding the outdoor unit 1. This state parameter is conventionally used not only by the wind direction plate management unit 30 but also by the entire control unit 20 for air conditioning control. However, the state parameter of the human detection sensor 11 is newly used in the present invention.

風向板管理部３０は前述した各状態パラメータが入力されるパラメータ判定部（パラメータ判定手段）３１と、指示風向記憶部（指示風向記憶手段）３２を備えている。指示風向記憶部３２は、状態パラメータを判断するため条件である状態条件と、状態パラメータが状態条件を満たした時の指示風向（指示された風の吹出し方向）を予め対応させて記憶している。次に状態条件と指示風向について詳細に説明する。 The wind direction plate management unit 30 includes a parameter determination unit (parameter determination unit) 31 to which the above-mentioned respective state parameters are input, and an instruction wind direction storage unit (instruction wind direction storage unit) 32. The instructed wind direction storage unit 32 stores in advance the state condition, which is a condition for determining the state parameter, and the instructed wind direction when the state parameter satisfies the state condition (the blowing direction of the instructed wind). .. Next, the state conditions and the indicated wind direction will be described in detail.

図３はこの状態条件と指示風向を格納した指示風向テーブルの内容を説明する説明図である。なお、室外機１は通勤・通学による人の往来がある歩道の脇に設置されている。このため、室外機１は室外機１の前面側で人を検知している間、上下風向板７２を上方に回転させ、人を検知していない間、上下風向板７２を前面側に回転させる。このようにすることで不快な吹き出し風を人に直接当てないようにしている。これを実現する指示風向テーブルを説明する。
この指示風向テーブルは、テーブルの左から右に向かって状態条件による判定の順序を示す１〜５の値からなる判定順序の項目があり、この各判定順序の値に対応して状態条件の項目と指示風向の項目の各内容がテーブルとして格納されている。 FIG. 3 is an explanatory diagram for explaining the contents of the instruction wind direction table that stores the state conditions and the instruction wind direction. The outdoor unit 1 is installed beside a sidewalk where people come and go due to commuting to work or school. Therefore, the outdoor unit 1 rotates the vertical wind direction plate 72 upward while detecting the person on the front side of the outdoor unit 1, and rotates the vertical wind direction plate 72 to the front side while not detecting the person. .. By doing so, the unpleasant blowing air is prevented from directly hitting the person. An instruction wind direction table that realizes this will be described.
This instruction wind direction table has items of a judgment order consisting of values 1 to 5 indicating the order of judgment by the state condition from left to right of the table, and the items of the state condition correspond to the values of each judgment order. And the respective contents of the items for the direction of the wind are stored as a table.

具体的に判定順序が１〜５に対応した順に状態条件は、「パワー素子温度は１２０℃以上」、「運転状態は急速運転中」、「時刻は通勤時間帯（８：０００〜１０：００及び１７：００〜２０：００）」、「人が存在する」、「人が存在しない」となっており、判定順序が１〜５に対応した順に指示風向は、「前面」、「前面」、「上方」、「上方」、「前面」となっている。なお、背景技術で説明したように、吹出し方向を前面から上方に偏向させた場合、送風経路が狭くなるため通風抵抗が増えて送風効率が低下するデメリットがあるが、どうしても室外機１の前面側に存在する人に風を当てたくない場合にやむなく風向ガイドを装着する。つまり、平均的な送風効率を改善するためには、上下風向板７２が前面側を向く期間を出来るだけ長くするとよい。 Specifically, the state conditions are “power element temperature is 120° C. or higher”, “operating state is in rapid operation”, and “time is commuting time zone (8,000 to 10:00) in the order corresponding to determination orders 1 to 5”. And 17:00 to 20:00)”, “there is a person”, and “there is no person”, and the instruction wind directions are “front” and “front” in the order corresponding to determination orders 1 to 5. , "Above", "above", and "front". As described in the background art, when the blowing direction is deflected upward from the front side, there is a demerit that ventilation resistance increases due to the narrowed air blowing path and air blowing efficiency decreases, but the front side of the outdoor unit 1 is inevitable. If you don't want to hit the wind on people who are in the area, wear a wind direction guide. That is, in order to improve the average air blowing efficiency, it is preferable to make the period in which the vertical airflow direction plate 72 faces the front side as long as possible.

そして、パラメータ判定部３１は指示風向記憶部３２から指示風向テーブルの内容を入力し、この状態条件と、前述した状態パラメータ（パワー素子温度、運転状態、時刻、人検知状態）を判定順序に従って判定する。パラメータ判定部３１は判定順序に従って判定し、ある状態条件を満たした場合、この状態条件と対応する指示風向を用いて風向制御を行う。その後、一定時間（例えば1秒後）の経過後に、再度、判定順序１から順に判定を実行し、状態パラメータの変化に対応して風向制御する。つまり、パラメータ判定部３１は常に状態パラメータを監視し、状態条件に従って風向を制御している。 Then, the parameter determination unit 31 inputs the content of the instruction wind direction table from the instruction wind direction storage unit 32, and determines this state condition and the above-mentioned state parameters (power element temperature, operating state, time, human detection state) in the order of determination. To do. The parameter determination unit 31 determines according to the determination order, and when a certain state condition is satisfied, the wind direction control is performed using the instructed wind direction corresponding to this state condition. Then, after a lapse of a fixed time (for example, 1 second), the determination is performed again in order from the determination order 1 and the wind direction control is performed according to the change of the state parameter. That is, the parameter determination unit 31 constantly monitors the state parameter and controls the wind direction according to the state condition.

パラメータ判定部３１は判定順序１で、入力されたパワー素子温度が状態条件「パワー素子温度は１２０℃以上」を満たすか否かを判定し、条件を満たした場合、判定順序１と対応する指示風向「前面」を指示風向テーブルから抽出し、これを風向板指示信号として風向板制御部２４へ出力する。風向板制御部２４はこれに対応して風向板駆動信号をモータ１２へ出力する。この結果、風向ガイド７の上下風向板７２が前面方向に回転し、吹出し方向は室外機１の前面方向になる。 In the determination order 1, the parameter determination unit 31 determines whether or not the input power element temperature satisfies the state condition “power element temperature is 120° C. or higher”, and when the condition is satisfied, an instruction corresponding to the determination order 1 The wind direction “front” is extracted from the instruction wind direction table and is output to the wind direction plate control unit 24 as a wind direction plate instruction signal. The wind direction plate control unit 24 correspondingly outputs a wind direction plate drive signal to the motor 12. As a result, the vertical wind direction plate 72 of the wind direction guide 7 rotates in the front direction, and the blowing direction becomes the front direction of the outdoor unit 1.

このように、パワー素子温度が１２０℃以上の場合はスイッチング素子にかなり熱負担がかかるため、パラメータ判定部３１は風向ガイド７の上下風向板７２を前面方向に回転させ、上下風向板７２が上方に向いている場合に比較して制御ユニット２０を冷却しやすくする。また、パラメータ判定部３１は上下風向板７２を前面方向に回転させることで送風量を増加させ、図示しない熱交換器の熱交換能力を増大させて図示しない圧縮機の負担を軽減することで圧縮機に供給される電流を低減させる。これにより圧縮機に電源を供給するコンバータ２３のパワー素子２３ａに流れる電流を低減させて発熱を低下させる。
つまり、室外機１は、パワー素子２３ａの発熱が小さい時のみ、上下風向板７２を上方に向け、パワー素子２３ａの発熱が大きい時のみ上下風向板７２を前方に向けることで平均的な送風効率を改善する。 As described above, when the power element temperature is 120° C. or higher, the switching element receives a considerable heat load. Therefore, the parameter determination unit 31 rotates the vertical wind direction plate 72 of the wind direction guide 7 in the front direction, and the vertical wind direction plate 72 is moved upward. It is easier to cool the control unit 20 as compared with the case where In addition, the parameter determination unit 31 increases the air flow rate by rotating the vertical airflow direction plate 72 in the front direction, increases the heat exchange capacity of the heat exchanger (not shown), and reduces the load on the compressor (not shown) to perform compression. Reduce the current supplied to the machine. This reduces the current flowing through the power element 23a of the converter 23 that supplies power to the compressor, thereby reducing heat generation.
That is, in the outdoor unit 1, the vertical airflow direction plate 72 is directed upward only when the heat generation of the power element 23a is small, and the vertical airflow direction plate 72 is directed forward only when the heat generation of the power element 23a is large, so that the average blowing efficiency is increased. To improve.

次にパラメータ判定部３１は判定順序１で、入力されたパワー素子温度が状態条件「パワー素子温度は１２０℃以上」を満たさない場合、次に判定順序２で、入力された運転状態が状態条件「運転状態は急速運転中」を満たすか否かを判定する。そしてパラメータ判定部３１はこの状態条件を満たした場合、判定順序２と対応する指示風向「前面」を指示風向テーブルから抽出し、これを風向板指示信号として風向板制御部２４へ出力する。その後の処理は判定項番１と同じである。「運転状態は急速運転中」の状態条件が満たされる場合は運転開始時など、設定温度と室温が大きく乖離している場合であり、このような急速運転中は上下風向板７２による風向を前方にしている。これは仕様の一例であり、急速運転中の条件を判定しない場合は判定順序２を省略するとよい。 Next, in the determination order 1, the parameter determination unit 31 determines that the input power element temperature does not satisfy the state condition “power element temperature is 120° C. or higher” in the determination order 1, and then the input operating state is the state condition. It is determined whether or not "the operating state is rapid operation" is satisfied. When this state condition is satisfied, the parameter determination unit 31 extracts the designated wind direction “front” corresponding to the determination order 2 from the designated wind direction table and outputs it as the wind direction plate instruction signal to the wind direction plate control unit 24. Subsequent processing is the same as the determination item number 1. When the state condition of "the operating state is in rapid operation" is satisfied, the set temperature and the room temperature are largely different from each other, such as at the start of operation. During such rapid operation, the wind direction by the vertical wind direction plate 72 is set to the forward direction. I have to. This is an example of specifications, and the determination order 2 may be omitted if the conditions during rapid operation are not determined.

次にパラメータ判定部３１は判定順序２で、入力された運転状態が状態条件「運転状態は急速運転中」を満たさない場合、次に判定順序３で、入力された時刻が状態条件「時刻は通勤時間帯」を満たすか否かを判定する。そしてパラメータ判定部３１はこの状態条件を満たした場合、判定順序３と対応する指示風向「上方」を指示風向テーブルから抽出し、これを風向板指示信号として風向板制御部２４へ出力する。風向板制御部２４はこれに対応して風向板駆動信号をモータ１２へ出力する。この結果、風向ガイド７の上下風向板７２が上方に回転し、吹出し方向は室外機１の前面上方になる。 Next, in the determination order 2, the parameter determination unit 31 determines that the input operating state does not satisfy the state condition “operating state is in rapid operation”, and then the determination time 3 determines that the input time is the state condition “time is It is determined whether the "commuting time zone" is satisfied. When this condition is satisfied, the parameter determination unit 31 extracts the instruction wind direction “upward” corresponding to the determination order 3 from the instruction wind direction table and outputs it as the wind direction plate instruction signal to the wind direction plate control unit 24. The wind direction plate control unit 24 correspondingly outputs a wind direction plate drive signal to the motor 12. As a result, the vertical wind direction plate 72 of the wind direction guide 7 rotates upward, and the blowing direction is above the front surface of the outdoor unit 1.

通勤時間帯、例えば８：００〜１０：００や１７：００〜２０：００の間は通勤・通学で室外機１の前を左右に移動するする人が多いと考えられる。こため、後述する人検知センサ１１による風向制御では人の存在に過剰に反応して上下風向板７２が無駄な上下回転を行う可能性が有るため、この時間帯は連続して送風方向が上方となるように上下風向板７２の方向を固定している。このようにパラメータ判定部３１はこれらの人に熱交換された不快な空気を直接吹き付けしないように、風向を上方にすることで不快な空気が通行人に直接当たらないようにしている。 It is considered that many people move right and left in front of the outdoor unit 1 during commuting or attending school during commuting hours, such as 8:00 to 10:00 and 17:00 to 20:00. Therefore, in the wind direction control by the human detection sensor 11, which will be described later, there is a possibility that the vertical wind direction plate 72 may perform unnecessary vertical rotation due to excessive reaction to the presence of a person. The direction of the vertical wind direction plate 72 is fixed so that As described above, the parameter determination unit 31 prevents the unpleasant air, which has been heat-exchanged, from being blown directly to these persons by raising the wind direction so that the unpleasant air does not directly hit the passersby.

次にパラメータ判定部３１は判定順序３で、入力された運転状態が状態条件「時刻は通勤時間帯」を満たさない場合、次に判定順序４で、入力された人検知状態が状態条件「人が存在する」を満たすか否かを判定する。そしてパラメータ判定部３１はこの状態条件を満たした場合、判定順序４と対応する指示風向「上方」を指示風向テーブルから抽出し、これを風向板指示信号として風向板制御部２４へ出力する。その後の処理は判定項番３と同じである。 Next, in the determination order 3, the parameter determination unit 31 determines that the input driving state does not satisfy the state condition “time is a commuting time zone”, and then in determination order 4, the input human detection state is the state condition “person”. Exists" is determined. When this state condition is satisfied, the parameter determination unit 31 extracts the instruction wind direction “upward” corresponding to the determination order 4 from the instruction wind direction table and outputs it as the wind direction plate instruction signal to the wind direction plate control unit 24. Subsequent processing is the same as the determination item number 3.

一方、パラメータ判定部３１は判定順序４で、入力された人検知状態が状態条件「人が存在する」を満たさない場合、次に判定順序５で、入力された人検知状態が状態条件「人が存在しない」を満たすか否かを判定する。そしてパラメータ判定部３１はこの状態条件を満たした場合、判定順序５と対応する指示風向「前面」を指示風向テーブルから抽出し、これを風向板指示信号として風向板制御部２４へ出力する。その後の処理は判定項番１と同じである。なお、パラメータ判定部３１は状態条件「人が存在しない」を満たさない場合、何らかの状態パラメータの入力ミス、例えばノイズなどであるとして、状態パラメータを入力しなおして再度、状態パラメータの判定をやり直す。 On the other hand, if the input human detection state does not satisfy the state condition “person exists” in the determination order 4 in the determination order 4, then the input person detection state is changed to the state condition “person” in the determination order 5 next. Is not present” is determined. When this condition is satisfied, the parameter determination unit 31 extracts the designated wind direction “front” corresponding to the determination order 5 from the designated wind direction table and outputs it as the wind direction plate instruction signal to the wind direction plate control unit 24. Subsequent processing is the same as the determination item number 1. When the condition condition “there is no person” is not satisfied, the parameter determination unit 31 determines that there is an input error of some state parameter, such as noise, and inputs the state parameter again, and performs the state parameter determination again.

パラメータ判定部３１は入力された人検知状態を用いて人の存在を認識したら上下風向板７２を上方に、人の存在を認識できない場合は上下風向板７２を前面にしている。この制御を詳しく説明する。
図４は歩道の脇に設置された室外機１の前を人８０が左から右に通過する場合に人検知センサ１１が検出した結果に基づいて上下風向板７２が回転する様子を説明する説明図である。 When the presence of a person is recognized using the input person detection state, the parameter determination unit 31 sets the vertical wind direction plate 72 to the upper side, and when the presence of the person cannot be recognized, the vertical wind direction plate 72 is set to the front side. This control will be described in detail.
FIG. 4 is a diagram for explaining how the vertical wind direction plate 72 rotates based on the result detected by the human detection sensor 11 when the person 80 passes from the left to the right in front of the outdoor unit 1 installed on the side of the sidewalk. It is a figure.

なお、破線で示す範囲内は人検知センサ１１で人８０を検知可能な検知範囲８１を示している。また、図４（Ａ）は人８０が検知範囲８１に入る直前を、図４（Ｂ）は人８０が検知範囲８１に入っている状態を、図４（Ｃ）は人８０が検知範囲８１から出た直後を、それぞれ示している。なお、パワー素子温度は１００℃、運転状態はサーモオフ状態、時刻は１２：００である。従ってパラメータ判定部３１は、判定順序１〜３まで状態条件を満たさないと判定したものとする。 The range indicated by the broken line indicates a detection range 81 in which the person 80 can be detected by the person detection sensor 11. Further, FIG. 4A shows a state immediately before the person 80 enters the detection range 81, FIG. 4B shows a state where the person 80 is in the detection range 81, and FIG. Immediately after leaving, each is shown. The power element temperature is 100° C., the operating state is the thermo-off state, and the time is 12:00. Therefore, it is assumed that the parameter determination unit 31 determines that the state conditions are not satisfied in the determination orders 1 to 3.

図４（Ａ）に示すように人８０は検知範囲８１の外から室外機１の前に向かっている。このため、パラメータ判定部３１は判定順序５で人が存在しない判定し、上下風向板７２を前面にしている。次に図４（Ｂ）に示すように人８０がさらに室外機１の前面に接近して、検知範囲８１に入った場合、パラメータ判定部３１は判定順序４で人が存在すると判定し、上下風向板７２を上方に回転させる。 As shown in FIG. 4A, the person 80 is heading from outside the detection range 81 to the front of the outdoor unit 1. For this reason, the parameter determination unit 31 determines that no person exists in the determination order 5, and sets the vertical wind direction plate 72 to the front. Next, as shown in FIG. 4(B), when the person 80 further approaches the front surface of the outdoor unit 1 and enters the detection range 81, the parameter determination unit 31 determines that a person exists in the determination order 4, and moves up and down. The wind direction plate 72 is rotated upward.

なお、前述したように人検知センサ１１は左右方向に１２０°の範囲の検知が可能である。例えば室外機１の左右方向の幅が１００センチメートルとした場合、この範囲で人検知可能とするためには風向ガイド７の前面から２８センチメートル離れる必要がある。これは架空の直角三角形を考えた場合、人検知センサ１１から前面側に室外機１から直角に離れる長さを底辺とし、高さが１００センチメートルの半分で斜辺と底辺の角度が１２０°の半分からなる直角三角形における底辺の長さ（風向ガイド７の前面からの距離）で求めることができる。 As described above, the human detection sensor 11 can detect the range of 120° in the left-right direction. For example, when the width of the outdoor unit 1 in the left-right direction is 100 cm, it is necessary to be 28 cm away from the front surface of the wind direction guide 7 in order to detect a person in this range. Considering a fictitious right-angled triangle, this is based on the distance from the outdoor unit 1 to the front side of the human detection sensor 11 at a right angle, and the height is half of 100 cm and the angle between the hypotenuse and the bottom is 120°. It can be obtained by the length of the base of a right-angled triangle consisting of half (distance from the front surface of the wind direction guide 7).

この距離（２８センチメートル）以上を保った状態で人８０の一部が検知範囲８１に入った時、つまり、人８０が室外機１の左端に到達する前にパラメータ判定部３１は判定順序４で人が存在すると判定し、上下風向板７２を上方に回転させる。
さらに、人８０が室外機１の前面を通り過ぎて、図４（Ｃ）に示すように検知範囲８１から出た場合、パラメータ判定部３１は判定順序５で人が存在しないと判定し、上下風向板７２を前面に回転させる。 When a part of the person 80 enters the detection range 81 while keeping this distance (28 centimeters) or more, that is, before the person 80 reaches the left end of the outdoor unit 1, the parameter determination unit 31 determines the determination order 4. It is determined that a person exists, and the vertical wind direction plate 72 is rotated upward.
Further, when the person 80 passes the front surface of the outdoor unit 1 and comes out of the detection range 81 as shown in FIG. 4C, the parameter determination unit 31 determines that no person exists in the determination order 5, and the up/down wind direction is determined. Rotate the plate 72 to the front.

以上説明したように、送風方向を偏向させる上下風向板７２を備えた室外機１において、パラメータ判定部３１は状態パラメータが状態条件を満足すると判定した時、状態条件と対応する指示風向を指示風向記憶部３２から抽出して風向板制御部２４へ指示する。このため、指示風向記憶部３２に予め状態条件と対応する指示風向を記憶させておくことで室外機１が予め記憶している状態条件になった時、吹出し方向を偏向させることができる。 As described above, in the outdoor unit 1 including the vertical wind direction plate 72 that deflects the blowing direction, when the parameter determination unit 31 determines that the state parameter satisfies the state condition, the instruction wind direction corresponding to the state condition is output. It is extracted from the storage unit 32 and is instructed to the wind direction plate control unit 24. Therefore, by storing the designated wind direction corresponding to the state condition in the designated wind direction storage unit 32 in advance, the blowing direction can be deflected when the outdoor unit 1 reaches the prestored state condition.

例えば状態条件を、「パワー素子温度は１２０℃以上」の温度範囲、「運転状態は急速運転中」、「時刻は通勤時間帯」、「人が存在する」、「人が存在しない」と予め決定し、これに対応する吹出し方向を決定して記憶させておくことにより、室外機１の状態条件に対応する風向に制御することができる。このため、背景技術で説明した吹出し方向が上方に固定された風向ガイドに比較して、室外機１の送風効率が低下する期間、つまり上下風向板７２が上方を向いている期間を短縮し、平均的な送風効率を改善することができる。 For example, the state conditions are preliminarily set to a temperature range of “power element temperature is 120° C. or higher”, “operating state is in rapid operation”, “time is commuting time zone”, “person exists”, “person does not exist” in advance. It is possible to control to the wind direction corresponding to the state condition of the outdoor unit 1 by determining and determining and storing the blowing direction corresponding thereto. Therefore, as compared with the wind direction guide in which the blowing direction is fixed upward as described in the background art, the period during which the ventilation efficiency of the outdoor unit 1 decreases, that is, the period in which the vertical wind direction plate 72 faces upward is shortened, The average blowing efficiency can be improved.

なお、本実施例ではパラメータ判定部３１や指示風向記憶部３２をハードウェアとして記載しているが、これに限るものでなく、ソフトウェアを利用したものであってもよい。
また、本実施例では人検知センサ１１を用いているが、これに限るものでなく、人検知センサ１１を省略して時間帯によってのみ上下風向板７２の方向を制御するようにしてもよい。
また、本実施例では吹出し方向を前面から上方に偏向させる例を説明しているが、これに限るものでなく、前面から下方やその他の任意の方向に偏向させてもよい。 Although the parameter determination unit 31 and the instruction wind direction storage unit 32 are described as hardware in the present embodiment, the present invention is not limited to this, and software may be used.
Further, although the human detection sensor 11 is used in the present embodiment, the present invention is not limited to this, and the human detection sensor 11 may be omitted and the direction of the vertical wind direction plate 72 may be controlled only by the time zone.
Further, in the present embodiment, an example is described in which the blowing direction is deflected upward from the front surface, but the present invention is not limited to this, and it may be deflected downward from the front surface or any other direction.

１ 室外機
１ａ 脚体
２ 前面パネル
２ａ ファンガード
３ 天板
５ ベース
６ 外胴
６ａ 右側パネル
６ｂ 左側パネル
７ 風向ガイド
７１ 左側板
７２ 上下風向板
７３ 仕切板
１０ 空気調和機
１１ 人検知センサ
１２ モータ
２０ 制御ユニット
２１ 時計部
２２ 運転状態取得部
２３ コンバータ（電力部）
２３ａ パワー素子
２３ｂ 温度センサ
２４ 風向板制御部
３０ 風向板管理部
３１ パラメータ判定部（パラメータ判定手段）
３２ 指示風向記憶部（指示風向記憶手段）
４０ 室内機

1 Outdoor unit 1a Leg 2 Front panel 2a Fan guard 3 Top plate 5 Base 6 Outer body 6a Right panel 6b Left panel 7 Wind direction guide 71 Left side plate 72 Vertical wind direction plate 73 Partition plate 10 Air conditioner 11 Human detection sensor 12 Motor 20 Control unit 21 Clock part 22 Operating state acquisition part 23 Converter (electric power part)
23a Power element 23b Temperature sensor 24 Wind direction plate control unit 30 Wind direction plate management unit 31 Parameter determination unit (parameter determination means)
32 Instruction wind direction storage unit (instruction wind direction storage means)
40 indoor unit

Claims (2)

吹出口から吹出される風の吹出し方向を偏向させる風向板を備えた室外機を含む空気調和機であって、
前記室外機は、
前記室外機の前方の人の存在を検知して人検知状態として出力する人検知センサと、
前記吹出口から吹出される風を偏向させるために前記風向板を回転させるモータと、
入力された前記吹出し方向を表す指示風向に基づいて前記モータを制御する風向板制御部と、
指示風向記憶手段と、パラメータ判定手段とを備え、
前記指示風向記憶手段は、人が存在するか否かを示す状態条件と前記指示風向を予め対応させて記憶しており、
前記パラメータ判定手段は、前記人検知状態が前記状態条件を満足すると判定した時、前記状態条件と対応する前記指示風向を前記指示風向記憶手段から抽出して前記風向板制御部へ出力することを特徴とする空気調和機。 An air conditioner including an outdoor unit having a wind direction plate that deflects a blowing direction of wind blown from an outlet,
The outdoor unit is
A person detection sensor that detects the presence of a person in front of the outdoor unit and outputs the detected person as a person detection state,
A motor that rotates the wind direction plate to deflect the wind blown from the outlet,
An airflow direction plate control unit that controls the motor based on an input airflow direction representing the input blowing direction;
An instruction wind direction storage means and a parameter determination means are provided,
The instruction wind direction storage means stores a state condition indicating whether a person is present and the instruction wind direction in advance in association with each other,
When the parameter determination unit determines that the human detection state satisfies the state condition, it extracts the indicated wind direction corresponding to the state condition from the indicated wind direction storage unit and outputs it to the wind direction plate control unit. A characteristic air conditioner. 吹出口から吹出される風の吹出し方向を偏向させる風向板を備えた室外機を含む空気調和機であって、
前記室外機は、
時刻を出力する時計部と、
前記吹出口から吹出される風を偏向させるために前記風向板を回転させるモータと、
入力された前記吹出し方向を表す指示風向に基づいて前記モータを制御する風向板制御部と、
指示風向記憶手段と、パラメータ判定手段とを備え、
前記指示風向記憶手段は、時間帯を示す状態条件と前記指示風向を予め対応させて記憶しており、
前記パラメータ判定手段は、前記時刻が前記状態条件を満足すると判定した時、前記状態条件と対応する前記指示風向を前記指示風向記憶手段から抽出して前記風向板制御部へ出力することを特徴とする空気調和機。
An air conditioner including an outdoor unit having a wind direction plate that deflects a blowing direction of wind blown from an outlet,
The outdoor unit is
A clock section that outputs the time,
A motor that rotates the wind direction plate to deflect the wind blown from the outlet,
An airflow direction plate control unit that controls the motor based on an input airflow direction representing the input blowing direction;
An instruction wind direction storage means and a parameter determination means are provided,
The instruction wind direction storage means stores the state condition indicating the time zone and the instruction wind direction in advance in association with each other,
When the parameter determination unit determines that the time satisfies the state condition, it extracts the indicated wind direction corresponding to the state condition from the indicated wind direction storage unit and outputs it to the wind direction plate control unit. Air conditioner to do.
JP2018243844A 2018-12-27 2018-12-27 air conditioner Active JP7223256B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112146159A (en) * 2020-09-22 2020-12-29 海信（山东）空调有限公司 Air conditioner and control method thereof
WO2022218003A1 (en) * 2021-04-16 2022-10-20 青岛海尔空调器有限总公司 Method and apparatus for controlling air output of air conditioner outdoor unit, and air conditioner outdoor unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002181374A (en) * 2000-12-15 2002-06-26 Matsushita Electric Ind Co Ltd Air-conditioning system
US20070151286A1 (en) * 2005-12-29 2007-07-05 Lg Electronics Inc. Outdoor unit for air conditioner and operation method thereof
JP2011038668A (en) * 2009-08-07 2011-02-24 Daikin Industries Ltd Outdoor unit for air conditioner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002181374A (en) * 2000-12-15 2002-06-26 Matsushita Electric Ind Co Ltd Air-conditioning system
US20070151286A1 (en) * 2005-12-29 2007-07-05 Lg Electronics Inc. Outdoor unit for air conditioner and operation method thereof
JP2011038668A (en) * 2009-08-07 2011-02-24 Daikin Industries Ltd Outdoor unit for air conditioner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112146159A (en) * 2020-09-22 2020-12-29 海信（山东）空调有限公司 Air conditioner and control method thereof
CN112146159B (en) * 2020-09-22 2022-02-25 海信（山东）空调有限公司 Air conditioner and control method thereof
WO2022218003A1 (en) * 2021-04-16 2022-10-20 青岛海尔空调器有限总公司 Method and apparatus for controlling air output of air conditioner outdoor unit, and air conditioner outdoor unit

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